ES2606777T3

ES2606777T3 - Heating plant control device

Info

Publication number: ES2606777T3
Application number: ES03815723.6T
Authority: ES
Inventors: Umberto Bertolotti
Original assignee: IVAR SpA
Current assignee: IVAR SpA
Priority date: 2003-02-04
Filing date: 2003-02-04
Publication date: 2017-03-27
Anticipated expiration: 2023-02-04
Also published as: HUE030743T2; CN100441961C; EP1590607B1; PT1590607T; AU2003215889A1; WO2004070280A1; CN1738994A; EP1590607A1

Abstract

Dispositivo de regulación (1) para sistemas de calentamiento que comprende: un primer cuerpo (14) que define una primera trayectoria (15) para un fluido, que se extiende desde una primera entrada (15a) hasta una primera salida (15b), y una segunda trayectoria (16) para el fluido que se extiende desde una segunda entrada (16a) hasta una segunda salida (16b); un segundo cuerpo (18) que define una tercera trayectoria (19) para el fluido, que se extiende desde una tercera entrada (19a), operativamente conectada a dicha primera salida (15b), hasta una tercera salida (19b); y una bomba (22) para hacer circular el fluido, que está dispuesta operativamente entre dicha primera salida (15b) y dicha tercera entrada (19a); realizándose dicho primer cuerpo (14) como una pieza y conectándose operativamente dicha primera trayectoria (15) con dicha segunda trayectoria (16) mediante una abertura de recirculación (17) para mezclar una cantidad preestablecida del fluido que fluye en la segunda trayectoria (16) con el fluido que fluye en la primera trayectoria (15); comprendiendo además el dispositivo (1) medios (23) para variar la cantidad de fluido que fluye desde dicha segunda trayectoria (16) a dicha primera trayectoria (15), que están asociados operativamente al primer cuerpo (14) en dicha abertura de recirculación (17) y medios (24) para regular el flujo de fluido a través de dicha primera entrada (15a), que están asociados a dicho primer cuerpo (14) en dicha primera trayectoria (15).Regulation device (1) for heating systems comprising: a first body (14) that defines a first path (15) for a fluid, which extends from a first inlet (15a) to a first outlet (15b), and a second fluid path (16) extending from a second inlet (16a) to a second outlet (16b); a second body (18) defining a third path (19) for the fluid, which extends from a third inlet (19a), operatively connected to said first outlet (15b), to a third outlet (19b); and a pump (22) for circulating the fluid, which is operatively arranged between said first outlet (15b) and said third inlet (19a); said first body (14) being made as one piece and said first path (15) being operatively connected to said second path (16) via a recirculation opening (17) to mix a pre-set quantity of the fluid flowing in the second path (16) with the fluid flowing in the first path (15); the device (1) further comprising means (23) for varying the amount of fluid flowing from said second path (16) to said first path (15), which are operatively associated with the first body (14) at said recirculation opening ( 17) and means (24) for regulating the flow of fluid through said first inlet (15a), which are associated with said first body (14) in said first path (15).

Description

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DESCRIPCIONDESCRIPTION

Dispositivo de control de planta de calentamientoHeating plant control device

La presente invencion se refiere a un dispositivo de regulacion para sistemas de calentamiento. En particular, la invencion se refiere a un dispositivo para regular el flujo de un fluido, normalmente agua caliente, en sistemas para calentar habitaciones en casas, edificios comerciales u otros.The present invention relates to a regulation device for heating systems. In particular, the invention relates to a device for regulating the flow of a fluid, usually hot water, in systems for heating rooms in houses, commercial buildings or others.

Se conoce que los sistemas para calentar edificios se dividen principalmente en sistemas de alta temperatura y baja temperatura. Los sistemas de alta temperatura consisten sustancialmente en una caldera, una serie de elementos de calentamiento, normalmente denominados radiadores, dispuestos en las diversas habitaciones del edificio y una pluralidad de colectores de distribucion y conductos que conectan la caldera a los elementos de calentamiento. Por otro lado, los sistemas de baja temperatura consisten en, ademas de la caldera, una pluralidad de elementos de calentamiento en la forma de conductos generalmente colocados bajo el suelo de la habitacion y al menos un par de colectores de distribucion que conectan los elementos de calentamiento a la caldera. Mientras que los sistemas del primer tipo funcionan con agua a una temperatura de aproximadamente ochenta grados centigrados, los sistemas del segundo tipo deben funcionar necesariamente con temperaturas de aproximadamente cuarenta grados, ya que mayores temperaturas podrian danar el suelo. Ademas, se conocen los sistemas de calentamiento mixtos que comprenden un circuito de alta temperatura y un circuito de baja temperatura, que se conectan adecuadamente entre si.It is known that systems for heating buildings are mainly divided into high temperature and low temperature systems. The high temperature systems consist substantially of a boiler, a series of heating elements, usually called radiators, arranged in the various rooms of the building and a plurality of distribution manifolds and ducts that connect the boiler to the heating elements. On the other hand, low temperature systems consist of, in addition to the boiler, a plurality of heating elements in the form of ducts generally placed under the floor of the room and at least one pair of distribution manifolds that connect the elements of boiler heating. While systems of the first type operate with water at a temperature of approximately eighty degrees Celsius, systems of the second type must necessarily operate at temperatures of approximately forty degrees, since higher temperatures could damage the soil. In addition, mixed heating systems comprising a high temperature circuit and a low temperature circuit are known, which are properly connected to each other.

Se conocen dispositivos que permiten regular de manera adecuada el flujo de agua caliente que circula dentro de sistemas de baja temperatura, que pueden usarse cuando dichos sistemas se conectan directamente a una caldera y cuando son parte de un sistema mixto y por tanto se conectan al sistema de alta temperatura conectado a su vez a la caldera.Devices are known that allow to adequately regulate the flow of hot water circulating within low temperature systems, which can be used when said systems are directly connected to a boiler and when they are part of a mixed system and therefore connected to the system high temperature connected to the boiler.

Dichos dispositivos permiten regular la temperatura dentro del circuito de baja temperatura y comprenden un gran numero de componentes. Los dispositivos de regulacion comprenden generalmente una entrada para agua de alta temperatura (por ejemplo, desde la caldera), una entrada para agua caliente en el circuito de baja temperatura, un retorno para agua desde el circuito de baja temperatura y una salida para agua hacia la caldera. Dichos dispositivos pueden comprender una valvula termostatica que controla la entrada para el agua de alta temperatura, una bomba para hacer circular el agua, uno o mas grifos de salida para agua dispuestos en las porciones inferiores de los conductos para vaciar el sistema cuando este ultimo se desactiva por mantenimiento y una o mas valvulas de descarga dispuestas en las porciones superiores de los conductos para expulsar automaticamente burbujas de aire. Ademas, los dispositivos de regulacion conocidos permiten generalmente mezclar una cantidad determinada de agua de retorno desde el circuito de baja temperatura con agua caliente desde la caldera, para determinar adecuadamente la temperatura del agua que entra en el circuito de baja temperatura.These devices allow regulating the temperature within the low temperature circuit and comprise a large number of components. The regulating devices generally comprise an inlet for high temperature water (for example, from the boiler), an inlet for hot water in the low temperature circuit, a return for water from the low temperature circuit and an outlet for water to the boiler Said devices may comprise a thermostatic valve that controls the inlet for high temperature water, a pump to circulate the water, one or more outlet taps for water arranged in the lower portions of the ducts to empty the system when the latter is deactivates for maintenance and one or more discharge valves arranged in the upper portions of the ducts to automatically expel air bubbles. In addition, known regulating devices generally allow a certain amount of return water to be mixed from the low temperature circuit with hot water from the boiler, to adequately determine the temperature of the water entering the low temperature circuit.

En los sistemas de baja temperatura se conoce ademas el uso de un conmutador termostatico de seguridad que detiene el sistema y bloquea el agua caliente desde la caldera cuando la temperatura del agua dentro del sistema esta por encima de un valor maximo preestablecido (aproximadamente 50 grados).In low temperature systems it is also known to use a thermostatic safety switch that stops the system and blocks hot water from the boiler when the temperature of the water inside the system is above a maximum preset value (approximately 50 degrees) .

El documento FR-A-2740863 divulga un dispositivo para suministrar mediante la misma caldera dos circuitos de agua caliente que tienen diferentes temperaturas. Tal dispositivo de suministro comprende una tuberia conectada a la salida de agua caliente de la caldera. La tuberia descarga en un conducto que suministra a los circuitos de alta y baja temperatura. Una tuberia conectada al retorno de agua de la caldera descarga desde un conducto de agua de retorno desde los circuitos de alta y baja temperatura. Una tuberia que recicla agua desde el circuito de baja temperatura conecta los dos conductos anteriores. El conducto que suministra agua caliente al circuito de alta temperatura esta equipado, corriente abajo de la tuberia de reciclaje, con una bomba que hace circular el agua al circuito de baja temperatura. La tuberia de retorno desde el circuito de baja temperatura esta equipada, corriente abajo de la tuberia de reciclaje, con una valvula motorizada de triple paso que permite o no permite que el agua fluya a la tuberia de retorno de la caldera; otra tuberia que conecta el suministro de circuito de baja temperatura y los conductos de retorno descarga en el conducto de suministro de agua corriente arriba de la tuberia de reciclaje, y dentro del conducto de retorno en la valvula. En otras palabras, el documento FR-A-2740863 divulga un dispositivo de regulacion para sistemas de calentamiento que comprende: una primera trayectoria para un fluido, que se extiende desde una primera entrada a una primera salida, y una segunda trayectoria para el fluido que se extiende desde una segunda entrada a una segunda salida, estando operativamente conectada dicha primera trayectoria con dicha segunda trayectoria mediante una abertura de recirculacion para mezclar una cantidad preestablecida del fluido que fluye en la segunda trayectoria con el fluido que fluye en la primera trayectoria; una bomba para hacer circular el fluido; y medios para variar la cantidad de fluido que fluye desde la segunda trayectoria a la primera trayectoria.Document FR-A-2740863 discloses a device for supplying two hot water circuits with different temperatures through the same boiler. Such supply device comprises a pipe connected to the hot water outlet of the boiler. The pipe discharges into a conduit that supplies high and low temperature circuits. A pipe connected to the boiler water return discharges from a return water line from the high and low temperature circuits. A pipe that recycles water from the low temperature circuit connects the two previous ducts. The conduit that supplies hot water to the high temperature circuit is equipped, downstream of the recycling pipe, with a pump that circulates the water to the low temperature circuit. The return pipe from the low temperature circuit is equipped, downstream of the recycling pipe, with a motorized triple-pass valve that allows or does not allow water to flow to the return pipe of the boiler; Another pipe connecting the low temperature circuit supply and return ducts discharges into the water supply conduit upstream of the recycling pipe, and into the return conduit in the valve. In other words, document FR-A-2740863 discloses a regulating device for heating systems comprising: a first path for a fluid, which extends from a first inlet to a first outlet, and a second path for the fluid that it extends from a second inlet to a second outlet, said first path being operatively connected with said second path through a recirculation opening to mix a preset amount of the fluid flowing in the second path with the fluid flowing in the first path; a pump to circulate the fluid; and means for varying the amount of fluid flowing from the second path to the first path.

El documento EP-A-1033539 divulga un colector modular provisto de un sistema de termorregulacion para plantas de calentamiento con paneles de radiacion o similares.EP-A-1033539 discloses a modular manifold provided with a thermoregulation system for heating plants with radiation panels or the like.

El documento DE-A-29820945 divulga un dispositivo adicional de la tecnica anterior.Document DE-A-29820945 discloses an additional prior art device.

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Los dispositivos de regulation conocidos tal como se ha descrito antes tienen algunos inconvenientes y desventajas.Known regulation devices as described above have some drawbacks and disadvantages.

De hecho, debido a la necesidad de conectar adecuadamente un numero extremadamente grande de componentes para obtener el funcionamiento deseado, dichos dispositivos siempre tienen una estructura muy compleja y voluminosa.In fact, due to the need to properly connect an extremely large number of components to obtain the desired operation, said devices always have a very complex and voluminous structure.

Ademas, dichos dispositivos de regulacion consisten generalmente en un numero extremadamente grande de piezas, con muchos empalmes y conexiones que se cruzan entre si siguiendo trayectorias bastante enrolladas.In addition, said regulating devices generally consist of an extremely large number of parts, with many splices and connections that cross each other following quite coiled paths.

Tales caracteristicas tienen como resultado primero una gran complejidad del dispositivo y un aumento de costes de production, instalacion y mantenimiento.Such characteristics first result in great complexity of the device and an increase in production, installation and maintenance costs.

Ademas, deberia senalarse que las operaciones de instalacion y mantenimiento para dichos dispositivos de regulacion son particularmente complejas, largas y dificiles.In addition, it should be noted that the installation and maintenance operations for such regulation devices are particularly complex, long and difficult.

Finalmente, deberia senalarse que dichos dispositivos son siempre extremadamente voluminosos, haciendo que surjan por tanto problemas de instalacion adicionales, ya que deben alojarse en cubiertas adecuadas dispuestas en las paredes junto con los colectores de distribution del sistema de calentamiento.Finally, it should be noted that such devices are always extremely bulky, thereby causing additional installation problems, since they must be housed in suitable covers arranged on the walls together with the distribution manifolds of the heating system.

En estas circunstancias, la tarea tecnica subyacente en la presente invention es concebir un dispositivo de regulacion para sistemas de calentamiento que pueda obviar sustancialmente los inconvenientes anteriores. Dentro de dicha tarea tecnica un objetivo importante es concebir un dispositivo de regulacion para sistemas de calentamiento que tenga una estructura simple y racional. Otro objetivo de la presente invencion es concebir un dispositivo de regulacion para sistemas de calentamiento que tenga un tamano particularmente pequeno y una estructura compacta. Un objetivo adicional de la presente invencion es proporcionar un dispositivo de regulacion para sistemas de calentamiento que pueda llevarse a cabo facilmente. Otro objetivo adicional es concebir un dispositivo de regulacion para sistemas de calentamiento que pueda instalarse rapidamente y con facilidad. Otro objetivo de la presente invencion es proporcionar un dispositivo de regulacion para sistemas de calentamiento que sea fiable y eficaz. Un objetivo adicional de la presente invencion es concebir un dispositivo de regulacion para sistemas de calentamiento que tenga una seguridad operativa alta tambien en caso de fallo de alguno de sus componentes. Otro objetivo adicional de la presente invencion es concebir un dispositivo de regulacion para sistemas de calentamiento que permita una regulacion de temperatura optima en sistemas domesticos unicos tambien en caso de sistemas de calentamiento conectados a un calentamiento central o de distrito. Los objetivos adicionales consisten en llevar a cabo un dispositivo de regulacion para sistemas de calentamiento que tenga costes de fabrication, instalacion y mantenimiento particularmente bajos. La tarea tecnica y los objetivos antes mencionados se logran mediante un dispositivo de regulacion para sistemas de calentamiento con las caracteristicas descritas en las reivindicaciones adjuntas.In these circumstances, the technical task underlying the present invention is to conceive a regulation device for heating systems that can substantially obviate the above drawbacks. Within this technical task an important objective is to conceive a regulation device for heating systems that has a simple and rational structure. Another objective of the present invention is to design a regulating device for heating systems having a particularly small size and a compact structure. A further objective of the present invention is to provide a regulating device for heating systems that can be easily carried out. Another additional objective is to conceive a regulation device for heating systems that can be installed quickly and easily. Another objective of the present invention is to provide a regulating device for heating systems that is reliable and efficient. An additional objective of the present invention is to conceive a regulation device for heating systems that has a high operational safety also in case of failure of any of its components. Another additional objective of the present invention is to conceive a regulation device for heating systems that allows optimum temperature regulation in single domestic systems also in the case of heating systems connected to a central or district heating. The additional objectives are to carry out a regulation device for heating systems that have particularly low manufacturing, installation and maintenance costs. The technical task and the aforementioned objectives are achieved by means of a regulation device for heating systems with the characteristics described in the appended claims.

Lo siguiente contiene a modo de ejemplo unicamente indicativo y no limitativo la description de una realization preferente, pero no exclusiva, de un dispositivo de regulacion para sistemas de calentamiento de acuerdo con la invencion, tal como se muestra en los dibujos adjuntos, en los que:The following contains, by way of example only indicative and not limiting, the description of a preferred, but not exclusive, embodiment of a regulation device for heating systems according to the invention, as shown in the attached drawings, in which :

- la Figura 1 muestra un detalle de un sistema de calentamiento para habitaciones con un dispositivo de acuerdo con la invencion asociado al mismo;- Figure 1 shows a detail of a heating system for rooms with a device according to the invention associated therewith;

- la Figura 2 es una vista lateral del sistema de la Figura 1;- Figure 2 is a side view of the system of Figure 1;

- la Figura 3 muestra una vista en perspectiva de un dispositivo de regulacion para sistemas de calentamiento de acuerdo con la presente invencion;- Figure 3 shows a perspective view of a regulating device for heating systems according to the present invention;

- la Figura 4 muestra una vista delantera del dispositivo de la Figura 3;- Figure 4 shows a front view of the device of Figure 3;

- la Figura 5 muestra una vista lateral del dispositivo de la Figura 3;- Figure 5 shows a side view of the device of Figure 3;

- la Figura 6 muestra una section del dispositivo de la Figura 3 a lo largo de las lineas VI-VI;- Figure 6 shows a section of the device of Figure 3 along the lines VI-VI;

- la Figura 7 muestra una segunda seccion del dispositivo de la Figura 3 a lo largo de las lineas VII-VII;- Figure 7 shows a second section of the device of Figure 3 along lines VII-VII;

- la Figura 8 muestra una vista desde la parte inferior del dispositivo de la Figura 3;- Figure 8 shows a view from the bottom of the device of Figure 3;

- la Figura 9 muestra una tercera seccion del dispositivo de la Figura 3 a lo largo de las lineas IX-IX;- Figure 9 shows a third section of the device of Figure 3 along lines IX-IX;

- la Figura 10 muestra una cuarta seccion del dispositivo de la Figura 3 a lo largo de las lineas X-X.- Figure 10 shows a fourth section of the device of Figure 3 along the X-X lines.

En el presente texto, de acuerdo con la terminologia usada en el campo, "agua de baja temperatura" significa agua para calentar habitaciones que esta a una temperatura de aproximadamente 30-50 grados, y mas precisamente aproximadamente 35-42 grados, mientras que "agua de alta temperatura" significa agua suministrada mediante una caldera o similar o que circula en un sistema de alta temperatura, que esta a una temperatura de aproximadamente 80 grados centigrados.In this text, according to the terminology used in the field, "low temperature water" means water for heating rooms that are at a temperature of approximately 30-50 degrees, and more precisely approximately 35-42 degrees, while " high temperature water "means water supplied by a boiler or similar or circulating in a high temperature system, which is at a temperature of approximately 80 degrees Celsius.

En referencia a las figuras mencionadas, un dispositivo de regulacion para sistemas de calentamiento de acuerdo con la invencion se indica globalmente con el numero de referencia 1.Referring to the aforementioned figures, a regulation device for heating systems according to the invention is indicated globally with the reference number 1.

Tal como puede verse en las Figuras 1 y 2, el dispositivo 1 se asocia con un sistema para calentar habitaciones, y en particular, el dispositivo 1 esta dispuesto entre un circuito de alta temperatura 2 y un circuito de baja temperaturaAs can be seen in Figures 1 and 2, the device 1 is associated with a system for heating rooms, and in particular, the device 1 is arranged between a high temperature circuit 2 and a low temperature circuit

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3. El circuito de alta temperatura 2 comprende un colector de distribucion de entrada 4 y un colector de distribucion de retorno 5 para agua caliente, al que una serie de conductos de conexion 6 se conectan, conectando los colectores de distribucion 4, 5 a los unicos elementos de calentamiento. Para simplificar la conexion con los conductos 6, los colectores de distribucion 4, 5 estan dispuestos preferentemente en dos niveles diferentes.3. The high temperature circuit 2 comprises an input distribution manifold 4 and a return distribution manifold 5 for hot water, to which a series of connection ducts 6 are connected, connecting the distribution manifolds 4, 5 to the Unique heating elements. To simplify the connection with the conduits 6, the distribution manifolds 4, 5 are preferably arranged on two different levels.

La Figura 1 muestra algunos elementos convencionales para circuitos de calentamiento, tales como soportes 7 para sujetar los colectores de distribucion 4, 5 a una pared, grifos de salida 8 para vaciar el circuito 2 cuando este ultimo se desactiva por mantenimiento, valvulas de descarga automaticas 9 para retirar burbujas de aire que crecen dentro del circuito 2 y un par de empalmes 10 provistos de valvulas de cierre con grifos correspondientes manualmente operados. El circuito de alta temperatura 2 se conecta a una caldera u otra fuente de agua caliente (no se muestra en las figuras) mediante tales empalmes 10. Deberia senalarse que el dispositivo 1 podria conectarse como alternativa directamente de manera totalmente similar a la caldera u otra fuente de agua caliente, en caso de que el circuito de alta temperatura 2 no este presente. Ademas, el circuito de baja temperatura 3 comprende un colector de distribucion de entrada de agua 11 y un colector de distribucion de retorno 12, conectados operativamente entre si y a los que se conectan elementos de calentamiento correspondientes, normalmente tuberias 13, que conducen el agua de baja temperatura a la habitacion a calentar y estan dispuestas normalmente bajo el suelo de la habitacion. El circuito 3 esta provisto de un punto de entrada de agua y de un punto de salida para el agua de baja temperatura, que se conectan al dispositivo de regulacion 1.Figure 1 shows some conventional elements for heating circuits, such as supports 7 for attaching distribution manifolds 4, 5 to a wall, outlet taps 8 for emptying circuit 2 when the latter is deactivated by maintenance, automatic discharge valves 9 to remove air bubbles that grow inside circuit 2 and a pair of splices 10 provided with shut-off valves with corresponding manually operated faucets. The high temperature circuit 2 is connected to a boiler or other hot water source (not shown in the figures) by such joints 10. It should be noted that the device 1 could be connected as an alternative directly in a manner completely similar to the boiler or other hot water source, in case the high temperature circuit 2 is not present. In addition, the low temperature circuit 3 comprises a water inlet distribution manifold 11 and a return distribution manifold 12, operatively connected to each other and to which corresponding heating elements are connected, usually pipes 13, which conduct the water from Low temperature to the room to be heated and are normally arranged under the floor of the room. Circuit 3 is provided with a water inlet point and an outlet point for low temperature water, which are connected to the regulating device 1.

Ademas, dichos colectores de distribucion 11, 12 se sujetan a una pared mediante soportes 7. El circuito de baja temperatura 3 esta provisto generalmente de elementos de regulacion 13a adecuados para el flujo de agua introducida en cada conducto, que pueden ser por ejemplo cabezales manuales, electricos o termostaticos. El dispositivo de regulacion 1 se coloca entre el circuito de baja temperatura 3 y el circuito de alta temperatura 2, o la caldera, para regular adecuadamente la entrada de agua caliente de alta temperatura en el circuito de baja temperatura 3. El dispositivo de regulacion 1 permite ademas premezclar el agua de alta temperatura que llega desde la caldera con una cantidad preestablecida de agua de baja temperatura tomada desde el circuito de baja temperatura 3.Furthermore, said distribution manifolds 11, 12 are attached to a wall by means of supports 7. The low temperature circuit 3 is generally provided with regulating elements 13a suitable for the flow of water introduced into each duct, which can be for example manual heads , electric or thermostatic. The regulation device 1 is placed between the low temperature circuit 3 and the high temperature circuit 2, or the boiler, to adequately regulate the entry of high temperature hot water into the low temperature circuit 3. The regulation device 1 it also allows to pre-mix the high temperature water that arrives from the boiler with a preset amount of low temperature water taken from the low temperature circuit 3.

El dispositivo de regulacion 3 comprende un primer cuerpo 14 que define una primera trayectoria 15, por ejemplo un conducto, para un fluido, normalmente agua, que se extiende desde una primera entrada 15a, conectada al colector de distribucion de entrada 4 del circuito 2 para agua de alta temperatura o a la caldera, hasta una primera salida 15b. Dicho cuerpo 14 comprende ademas una segunda trayectoria 16 para el fluido que se extiende desde una segunda entrada 16a, conectada al colector de distribucion de retorno 12 del circuito de baja temperatura 3, hasta una segunda salida 16b. La primera trayectoria 15 se conecta operativamente a la segunda trayectoria 16 mediante una abertura de recirculacion 17, que permite premezclar una cantidad preestablecida de agua de retorno de baja temperatura que fluye dentro de la segunda trayectoria 16 con el agua de entrada de alta temperatura que fluye dentro de la primera trayectoria 15. Ventajosamente, la segunda salida 16b se coloca entre la segunda entrada 16a y la abertura de recirculacion 17.The regulating device 3 comprises a first body 14 defining a first path 15, for example a conduit, for a fluid, usually water, which extends from a first inlet 15a, connected to the input distribution manifold 4 of circuit 2 for high temperature water or the boiler, until a first exit 15b. Said body 14 further comprises a second path 16 for the fluid extending from a second inlet 16a, connected to the return distribution manifold 12 of the low temperature circuit 3, to a second outlet 16b. The first path 15 is operatively connected to the second path 16 by a recirculation opening 17, which allows a preset amount of low temperature return water flowing within the second path 16 to be premixed with the flowing high temperature inlet water within the first path 15. Advantageously, the second outlet 16b is placed between the second inlet 16a and the recirculation opening 17.

El dispositivo 1 comprende ademas un segundo cuerpo 18 que define una tercera trayectoria 19 para el fluido, que se extiende desde una tercera entrada 19a, conectada operativamente a la primera salida 15b, hasta una tercera salida 19b, conectada al colector de distribucion de entrada 11 del circuito de calentamiento de baja temperatura 3.The device 1 further comprises a second body 18 defining a third path 19 for the fluid, which extends from a third inlet 19a, operatively connected to the first outlet 15b, to a third outlet 19b, connected to the inlet distribution manifold 11 of the low temperature heating circuit 3.

Ademas, el segundo cuerpo 18 define ventajosamente una cuarta trayectoria 20 para el fluido, trayectoria que se extiende desde una cuarta entrada 20a, conectada operativamente a la segunda salida 16b, hasta una cuarta salida 20b conectada operativamente al colector de distribucion de retorno 5 del circuito de calentamiento 2 con agua de alta temperatura o con la linea de retorno de la caldera. La cuarta entrada 20a se conecta a la segunda salida 16b mediante un conducto de conexion 21. Como alternativa, el segundo cuerpo 18 puede comprender solo la tercera trayectoria 19 y la segunda salida 16b puede conectarse operativamente directamente al circuito de alta temperatura 2 o la caldera. Ventajosamente, la primera entrada 15a y la segunda entrada 16a se colocan en una posicion opuesta con respecto al primer cuerpo 14 y estan sustancialmente alineadas. Preferentemente, la primera salida 15b tiene un eje longitudinal sustancialmente perpendicular con respecto a los ejes de la primera entrada 15a y de la segunda entrada 16a. Ademas, la tercera salida 19b y la cuarta salida 20b se colocan ventajosamente en posicion opuesta con respecto al segundo cuerpo 18 y estan sustancialmente alineadas, y la tercera entrada 19a tiene un eje longitudinal sustancialmente perpendicular con respecto a los ejes de la tercera 19b y la cuarta salida 20b. El segundo cuerpo 18 se realiza preferentemente de una pieza, por ejemplo como metal fundido, pero tambien puede realizarse como varias piezas montadas juntas. El dispositivo 1 comprende ademas una bomba 22 para hacer circular agua, que esta operativamente dispuesta entre la primera salida 15b y la tercera entrada 19a. Deberia senalarse que la bomba se muestra esquematicamente en una vista en seccion en las Figuras 6, 9 y 10, como un cuerpo completo, ya que se conoce per se. Obviamente, la bomba esta provista de una conexion para el fluido entre la primera salida 15b y la tercera entrada 19a, y de medios conocidos para empujar el fluido en la direccion deseada. Tal como puede verse en las Figuras 3, 5 y 6, el primer cuerpo 14 y el segundo cuerpo 18 estan dispuestos adecuadamente en diferentes niveles, correspondiendose el primer cuerpo 14 con el nivel del colector de distribucion de entrada 4 del circuito de alta temperatura 2 y del colector de distribucion de retorno 12 del circuito de baja temperatura 3, y el segundo cuerpo 18 correspondiendose con el nivel del colector de distribucion de retorno 5 del circuito de alta temperatura 2 y del colector de distribucion de entrada 11 del circuito de baja temperatura 3. LaIn addition, the second body 18 advantageously defines a fourth path 20 for the fluid, a path extending from a fourth inlet 20a, operatively connected to the second outlet 16b, to a fourth outlet 20b operatively connected to the return distribution manifold 5 of the circuit heating 2 with high temperature water or with the boiler return line. The fourth inlet 20a is connected to the second outlet 16b by a connection conduit 21. Alternatively, the second body 18 may comprise only the third path 19 and the second outlet 16b can be operatively connected directly to the high temperature circuit 2 or the boiler . Advantageously, the first entry 15a and the second entry 16a are placed in an opposite position with respect to the first body 14 and are substantially aligned. Preferably, the first outlet 15b has a substantially perpendicular longitudinal axis with respect to the axes of the first input 15a and the second input 16a. In addition, the third outlet 19b and the fourth outlet 20b are advantageously placed in opposite position with respect to the second body 18 and are substantially aligned, and the third inlet 19a has a substantially perpendicular longitudinal axis with respect to the axes of the third 19b and the fourth exit 20b. The second body 18 is preferably made of one piece, for example as molten metal, but can also be made as several pieces mounted together. The device 1 further comprises a pump 22 for circulating water, which is operatively arranged between the first outlet 15b and the third inlet 19a. It should be noted that the pump is shown schematically in a sectional view in Figures 6, 9 and 10, as a complete body, as it is known per se. Obviously, the pump is provided with a connection for the fluid between the first outlet 15b and the third inlet 19a, and known means for pushing the fluid in the desired direction. As can be seen in Figures 3, 5 and 6, the first body 14 and the second body 18 are suitably arranged at different levels, the first body 14 corresponding to the level of the input distribution manifold 4 of the high temperature circuit 2 and of the return distribution manifold 12 of the low temperature circuit 3, and the second body 18 corresponding to the level of the return distribution manifold 5 of the high temperature circuit 2 and of the input distribution manifold 11 of the low temperature circuit 3. The

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primera salida 15b y la tercera entrada 19a son ventajosamente coplanarias y por tanto sobresalen desde sus respectivos cuerpos 14, 18, para que la bomba 22 pueda montarse facilmente. El dispositivo 1 comprende ademas medios 23 para variar la cantidad de agua que fluye desde la segunda trayectoria 16 a la primera trayectoria 15, que se asocian operativamente al primer cuerpo 14 en la abertura de recirculacion 17. Dichos medios 23 son ventajosamente ajustables para variar el caudal del agua de baja temperatura de retorno a mezclar con el agua de alta temperatura que llega desde la primera entrada 15a, para enviar a la tercera trayectoria 19 del segundo cuerpo 18 y al colector de distribution de entrada 11 del circuito de baja temperatura 3 agua adecuadamente premezclada de acuerdo con las necesidades de calentamiento.First outlet 15b and third inlet 19a are advantageously coplanar and therefore protrude from their respective bodies 14, 18, so that the pump 22 can be easily mounted. The device 1 further comprises means 23 for varying the amount of water flowing from the second path 16 to the first path 15, which are operatively associated with the first body 14 in the recirculation opening 17. Said means 23 are advantageously adjustable to vary the low return water flow rate to be mixed with the high temperature water that arrives from the first inlet 15a, to send to the third path 19 of the second body 18 and to the input distribution manifold 11 of the low temperature circuit 3 water properly premixed according to heating needs.

Esto permite no introducir directamente en el circuito de baja temperatura 3 agua de alta temperatura, lo que podria causar danos en el sistema mediante elevaciones subitas de temperatura en el circuito 3. Ademas, es por tanto posible mejorar la eficacia del sistema mediante la recirculacion en el circuito de baja temperatura 3 de una cantidad determinada de agua de baja temperatura y anadiendo solo agua de alta temperatura segun sea estrictamente necesario. Dichos medios 23 pueden comprender, por ejemplo, un soporte 23 ajustable manualmente para definir la potencialidad maxima del circuito de calentamiento de baja temperatura 3. El dispositivo 1 comprende ademas medios 24 para regular el flujo de agua a traves de la primera entrada 15a, que estan asociados al primer cuerpo 14 dentro de la primera trayectoria 15. Dichos medios de regulation de flujo 24 comprenden un cabezal termostatico 24a, operativamente activo para accionar un obturador 24b colocado en la primera trayectoria 15 para variar el flujo de agua de alta temperatura que entra en el dispositivo 1. Dichos medios de regulacion comprenden ademas un sensor 24c colocado dentro de la tercera trayectoria 19 y operativamente conectado al cabezal termostatico 14a, que puede regular adecuadamente la cantidad de agua caliente de alta temperatura que se introduce en el dispositivo 1 y por tanto en el circuito de baja temperatura 3 de acuerdo con la temperatura detectada en el agua premezclada que entra en el circuito de baja temperatura 3. Como alternativa, dichos medios de regulacion de flujo 24 pueden comprender un motor electrico provisto de sensores adecuados y operativamente activo para accionar un soporte dispuesto dentro de la primera trayectoria 15 para variar el flujo de agua de alta temperatura de entrada. El dispositivo 1 puede comprender ademas medios para controlar el trabajo del dispositivo 1 (no se muestran en las figuras debido a su forma convencional), operativamente conectados con los medios 24 para regular el flujo de entrada. Tales medios pueden ser sistemas de control convencionales electromecanicos o electronicos y pueden conectarse con medios adecuados para controlar el trabajo del sistema de calentamiento general.This allows 3 high-temperature water not to enter directly into the low temperature circuit, which could cause damage to the system by means of temperature rises in circuit 3. In addition, it is therefore possible to improve the efficiency of the system by recirculation in the low temperature circuit 3 of a certain amount of low temperature water and adding only high temperature water as strictly necessary. Said means 23 may comprise, for example, a manually adjustable support 23 for defining the maximum potential of the low temperature heating circuit 3. The device 1 also comprises means 24 for regulating the flow of water through the first inlet 15a, which they are associated to the first body 14 within the first path 15. Said flow regulation means 24 comprise a thermostatic head 24a, operatively active to actuate a shutter 24b placed in the first path 15 to vary the flow of high temperature water entering in the device 1. Said regulation means further comprise a sensor 24c placed within the third path 19 and operatively connected to the thermostatic head 14a, which can adequately regulate the amount of high temperature hot water that is introduced into the device 1 and by both in the low temperature circuit 3 according to the temperature detected in the premezcl water Since it enters the low temperature circuit 3. Alternatively, said flow regulating means 24 may comprise an electric motor provided with suitable sensors and operatively active to drive a support arranged within the first path 15 to vary the water flow High inlet temperature. The device 1 may further comprise means for controlling the work of the device 1 (not shown in the figures due to its conventional shape), operatively connected with the means 24 to regulate the input flow. Such means can be conventional electromechanical or electronic control systems and can be connected with suitable means to control the work of the general heating system.

Ventajosamente, el dispositivo 1 comprende ademas un conducto de derivation 25, tal como puede verse en las Figuras 5 y 7, que conecta la segunda trayectoria 16 y la tercera trayectoria 19, que aloja una valvula de derivacion 26 que permite que el agua fluya desde la tercera a la segunda trayectoria 16 cuando la presion del agua en el dispositivo 1 esta por encima de un valor preestablecido. Tal conducto de derivacion 25 permite, por ejemplo, evitar que el sistema y la bomba se danen en caso de que la circulation del agua dentro del circuito de baja temperatura 3 deba evitarse, por ejemplo debido a la desactivacion temporal de todos los cabezales de regulacion 13a para los diversos elementos de calentamiento 13. Como alternativa, puede proporcionarse la detention de la bomba 22 controlada por un sistema de control global del dispositivo 1. El dispositivo 1 comprende ademas un conmutador termostatico de seguridad (no mostrado en las figuras) operativamente conectado con dicho dispositivo 1 y en particular con los medios de regulacion de flujo 24 para detener el flujo de agua de alta temperatura en la primera entrada 15a cuando la temperatura dentro de la tercera trayectoria 19 esta por encima de un nivel de umbral preestablecido, por ejemplo 50 grados centigrados. Tal conmutador termostatico es un dispositivo de seguridad adicional contra los danos del circuito de baja temperatura 3 y de las estructuras en contacto con este ultimo. El dispositivo 1 esta provisto ademas de termometros 27 colocados en algunas trayectorias de agua para indicar la temperatura del agua en la trayectoria concernida. El dispositivo 1 comprende ademas un elemento de cierre ajustable 28, por ejemplo un soporte o una valvula de bolas, para bloquear el flujo de fluido en el dispositivo 1, y un grifo de salida 8 para vaciar el dispositivo 1. En particular, los elementos de detencion se proporcionan en la primera salida 15b y en la tercera entrada 19a, para aislar la bomba 22, y en la cuarta salida 20b. El dispositivo 1 comprende ademas algunas valvulas de descarga automaticas 9 que expulsan burbujas de aire que pueden formarse en el sistema.Advantageously, the device 1 further comprises a bypass duct 25, as can be seen in Figures 5 and 7, which connects the second path 16 and the third path 19, which houses a bypass valve 26 that allows water to flow from the third to the second path 16 when the water pressure in the device 1 is above a preset value. Such bypass duct 25 makes it possible, for example, to prevent the system and the pump from being damaged in the event that the circulation of water within the low temperature circuit 3 must be avoided, for example due to the temporary deactivation of all regulating heads. 13a for the various heating elements 13. Alternatively, the detention of the pump 22 controlled by a global control system of the device 1 can be provided. The device 1 further comprises a thermostatic safety switch (not shown in the figures) operatively connected with said device 1 and in particular with the flow regulating means 24 to stop the flow of high temperature water at the first inlet 15a when the temperature within the third path 19 is above a predetermined threshold level, for example 50 degrees Celsius Such a thermostatic switch is an additional safety device against the damages of the low temperature circuit 3 and the structures in contact with the latter. The device 1 is also provided with thermometers 27 placed in some water paths to indicate the temperature of the water in the path concerned. The device 1 further comprises an adjustable closure element 28, for example a support or a ball valve, to block the flow of fluid in the device 1, and an outlet tap 8 to empty the device 1. In particular, the elements of stop are provided at the first outlet 15b and the third inlet 19a, to isolate the pump 22, and at the fourth outlet 20b. The device 1 also includes some automatic discharge valves 9 that expel air bubbles that can form in the system.

El sistema de calentamiento esta equipado ademas con medios conocidos para controlar el trabajo de dicho sistema, que comprenden un sistema para regular la temperatura en la habitation, ya sea con un control manual o automatico y controlando la entrada de agua de alta temperatura en el dispositivo 1 cuando la temperatura ambiente detectada en la habitacion esta por debajo de un valor preestablecido.The heating system is also equipped with known means for controlling the work of said system, which comprise a system for regulating the temperature in the room, either with a manual or automatic control and controlling the entry of high temperature water into the device. 1 when the ambient temperature detected in the room is below a preset value.

El trabajo de un dispositivo de regulacion para un sistema de calentamiento de acuerdo con la presente invention, tal como se ha descrito antes, principalmente desde un punto de vista estructural, es el siguiente. El soporte ajustable 23 en la abertura de recirculacion 17 se ajusta cuando se instala el dispositivo 1, para obtener la potencialidad maxima del circuito de calentamiento de baja temperatura 3. Por consiguiente, el cabezal termostatico 24a regula automaticamente, basandose en las temperaturas detectadas mediante el sensor 24c colocado en la tercera trayectoria 19, el flujo de agua de alta temperatura, que se introduce en el dispositivo 1 y se mezcla con una cantidad determinada de agua de retorno de baja temperatura en la segunda trayectoria 16. Tal agua mezclada sale entonces de la primera salida 15b y se empuja mediante la bomba 22 a traves de la tercera trayectoria 19 del segundo cuerpo 18, y despues dentro del colector de distribucion de entrada 11 del circuito de baja temperatura 3. El agua que vuelve desde el circuito de baja temperatura 3 entra en la segunda entrada 16a y se envia parcialmente aThe work of a regulating device for a heating system according to the present invention, as described above, mainly from a structural point of view, is as follows. The adjustable support 23 in the recirculation opening 17 is adjusted when the device 1 is installed, to obtain the maximum potential of the low temperature heating circuit 3. Accordingly, the thermostatic head 24a regulates automatically, based on the temperatures detected by the sensor 24c placed in the third path 19, the high temperature water flow, which is introduced into the device 1 and mixed with a certain amount of low temperature return water in the second path 16. Such mixed water then leaves the first outlet 15b and is pushed by the pump 22 through the third path 19 of the second body 18, and then into the input distribution manifold 11 of the low temperature circuit 3. The water returning from the low temperature circuit 3 enters the second entry 16a and is partially sent to

traves de la abertura de recirculacion 17 y sale parcialmente de la segunda salida 16b y alcanza la cuarta trayectoria 20 del segundo cuerpo 18, desde donde vuelve a introducirse en el circuito de alta temperatura 2 a traves de la cuarta salida 20b. Obviamente, ya que estos son circuitos cerrados, dado un cierto flujo de agua de alta temperatura que entra en el dispositivo 1, existe un flujo correspondiente de agua de baja temperatura que sale fuera de la 5 segunda salida 16b y despues de la cuarta salida 20b. Cuando el cabezal termostatico 24a cierra totalmente la primera entrada 15a, toda el agua de baja temperatura se hace recircular en el circuito de baja temperatura 3. Los valores de referencia para las temperaturas operativas del agua en las diversas piezas del dispositivo 1 pueden ser por ejemplo las siguientes: en la primera entrada 15a, el agua esta a aproximadamente 70-80 °C, en la primera salida 15b, despues de la mezcla, a aproximadamente 40-42 °C, como en la tercera salida 19b y por tanto en el 10 colector de distribucion de entrada de baja temperatura 11, mientras que en la segunda entrada 16a y en el colectorthrough the recirculation opening 17 and partially exits the second outlet 16b and reaches the fourth path 20 of the second body 18, from where it re-enters the high temperature circuit 2 through the fourth outlet 20b. Obviously, since these are closed circuits, given a certain high temperature water flow entering the device 1, there is a corresponding low temperature water flow that exits outside the second second outlet 16b and after the fourth outlet 20b . When the thermostatic head 24a completely closes the first inlet 15a, all the low temperature water is recirculated in the low temperature circuit 3. The reference values for the operating temperatures of the water in the various parts of the device 1 can be for example the following: in the first inlet 15a, the water is at approximately 70-80 ° C, in the first outlet 15b, after mixing, at approximately 40-42 ° C, as in the third outlet 19b and therefore in the 10 low temperature inlet distribution manifold 11, while in the second inlet 16a and in the manifold

de distribucion de retorno de baja temperatura 12, el agua esta a aproximadamente a 30-32 °C.of low temperature return distribution 12, the water is at approximately 30-32 ° C.

La invencion tiene importantes ventajas. En primer lugar, deberia senalarse que un dispositivo de regulation para sistemas de calentamiento de acuerdo con la invencion tiene una estructura altamente simple y racional. Ademas, 15 deberia senalarse que tal dispositivo de regulacion tiene un tamano muy pequeno y una estructura global compacta.The invention has important advantages. First, it should be noted that a regulation device for heating systems according to the invention has a highly simple and rational structure. In addition, it should be noted that such a regulation device has a very small size and a compact overall structure.

Ademas, la invencion puede llevarse a cabo facilmente e instalarse rapidamente y con facilidad. Un dispositivo de acuerdo con la invencion es ademas fiable y eficaz y asegura una alta seguridad operativa. Dicho dispositivo permite una regulacion optima de la temperatura tanto en sistemas domesticos unicos como en sistemas de calentamiento central. Finalmente, deberia senalarse que un dispositivo de regulacion de acuerdo con la presente invencion tiene 20 unos costes de fabrication, instalacion y mantenimiento extremadamente bajos.In addition, the invention can be carried out easily and installed quickly and easily. A device according to the invention is also reliable and efficient and ensures high operational safety. Said device allows optimum temperature regulation in both single domestic systems and central heating systems. Finally, it should be noted that a regulation device according to the present invention has extremely low manufacturing, installation and maintenance costs.

Claims

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1. Regulation device (1) for heating systems comprising:

a first body (14) defining a first path (15) for a fluid, which extends from a first inlet (15a) to a first outlet (15b), and a second path (16) for the fluid that extends from a second input (16a) to a second output (16b);

a second body (18) defining a third path (19) for the fluid, which extends from a third inlet (19a), operatively connected to said first outlet (15b), to a third outlet (19b); and a pump (22) for circulating the fluid, which is operatively disposed between said first outlet (15b) and said third inlet (19a);

said first body (14) being made as a part and said first path (15) operatively connected to said second path (16) by means of a recirculation opening (17) to mix a preset amount of the fluid flowing in the second path (16) with the fluid flowing in the first path (15);

the device (1) also comprising means (23) for varying the amount of fluid flowing from said second path (16) to said first path (15), which are operatively associated with the first body (14) in said recirculation opening ( 17) and

means (24) for regulating the flow of fluid through said first inlet (15a), which are associated with said first body (14) in said first path (15).

2. Device according to claim 1, characterized in that said second outlet (16b) is placed between said second inlet (16a) and said recirculation opening (17).

Device according to claims 1 or 2, characterized in that said first inlet (15a) and said second outlet (16b) are operatively connected to a boiler or to a heating circuit (2) with high temperature water, and by that said second inlet (16a) and said third outlet (19b) can be operatively connected to a heating circuit (3) with low temperature water.

Device according to claim 3, characterized in that said second body (18) further defines a fourth path (20) for the fluid extending from a fourth inlet (20a), operatively connected to said second outlet (16b) , up to a fourth outlet (20b) that can be operatively connected to the boiler or to the heating circuit (2) with high temperature water.

5. Device according to claim 4, characterized in that the fourth input (20a) is connected to the second output (16b) by means of a connection conduit (21).

Device according to any of the preceding claims, characterized in that said second body (18) is made as a piece.

Device according to any one of claims 1 to 5, characterized in that said second body (18) consists of several pieces mounted together.

Device according to any of the preceding claims, characterized in that said variable means (23) comprise an adjustable support.

Device according to any of the preceding claims, characterized in that said first body (14) and / or said second body (18) are made of molten metal.

Device according to any one of the preceding claims, characterized in that said first outlet (15b) and said third inlet (19a) are coplanar and protrude respectively from the first and second bodies.

Device according to any of the preceding claims, characterized in that said first inlet (15a) and said second inlet (16a) are placed in opposite positions with respect to the first body (14) and are substantially aligned.

12. Device according to claim 11, characterized in that said first outlet (15b) has a longitudinal axis substantially perpendicular to the axes of said first inlet (15a) and said second inlet (16a).

13. Device according to any of claims 4 to 12, characterized in that said third outlet (19b) and said fourth outlet (20b) are placed in opposite positions with respect to the second body (18) and are substantially aligned.

14. Device according to claim 13, characterized in that said third input (19a) has an axis

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longitudinal substantially perpendicular to the axes of said third (19b) and said fourth outlet (20b).

15. Device according to any of the preceding claims, characterized in that said flow regulating means (24) comprise a thermostatic head (24a) operatively active to actuate a shutter (24b) placed in the first path (15) to vary the incoming liquid flow, and a sensor (24c) placed in said third path (19) and operatively connected to said thermostatic head (24a).

16. Device according to any one of claims 1 to 14, characterized in that said flow regulating means (24) comprise an operatively active electric motor for driving a support placed in the first path (15) to vary the flow of incoming liquid.

17. Device according to any of the preceding claims, characterized in that it comprises means for controlling the operation of the device (1) operatively connected to said flow regulation means (24).

18. Device according to any of the preceding claims, characterized in that it further comprises a bypass duct (25) connecting said second path (16) and said third path (19), and a bypass valve (26) placed in the bypass conduit (25) to allow fluid flow from the third (19) to the second paths (16) when the pressure of the fluid in the device (1) is above a preset value.

19. Device according to any of the preceding claims, characterized in that it further comprises a thermostatic safety switch operatively connected to the device (1) to block the flow of fluid in the first inlet (15a) when the temperature in the third path ( 19) is above a preset threshold value.

20. Device according to any of the preceding claims, characterized in that it further comprises a thermometer (27) placed in one of said fluid paths to indicate the temperature of the fluid in its respective path.

21. Device according to any of the preceding claims, characterized in that it further comprises an adjustable closing element (28) to block the flow of fluid in the device, and an outlet tap (8) to empty the device (1) .

22. Device according to any of the preceding claims, characterized in that it further comprises an automatic air discharge valve (9).

23. Heating system for enclosures, characterized in that it comprises a device (1) according to any of the preceding claims.