EP0972994B1 - Appareil de chauffage pour eau chaude sanitaire - Google Patents

Appareil de chauffage pour eau chaude sanitaire Download PDF

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Publication number
EP0972994B1
EP0972994B1 EP19990202300 EP99202300A EP0972994B1 EP 0972994 B1 EP0972994 B1 EP 0972994B1 EP 19990202300 EP19990202300 EP 19990202300 EP 99202300 A EP99202300 A EP 99202300A EP 0972994 B1 EP0972994 B1 EP 0972994B1
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EP
European Patent Office
Prior art keywords
sanitary water
heating water
sanitary
container
heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19990202300
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German (de)
English (en)
Other versions
EP0972994A1 (fr
Inventor
Robbert Cornelis De Bruin
Petrus Gerardus Eduardus Johannes Tombrock
Heinz Bernd Grabenhenrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nefit Buderus BV
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Nefit Buderus BV
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Publication of EP0972994A1 publication Critical patent/EP0972994A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F24D3/082—Hot water storage tanks specially adapted therefor

Definitions

  • the invention relates to a device for heating of Sanitary water with a container for sanitary water to around which there is a space bounded by walls, in which a tortuous sanitary water pipe with some Windings is added, which is connected to the container is.
  • the dispensing vessel comprises a relatively large container for sanitary water with a Side wall, around which a ring-shaped boiler room is appropriate.
  • the helical conduit extends between the side walls the heating water space, creating heating water (countercurrently) helically through the heating water space flows, parallel to the sanitary water pipe.
  • a disadvantage of the known dispensing vessel is the fact that the heat transfer between the heating water and the sanitary water is not optimal, as the heating water only in contact with part of the sanitary water pipe stands.
  • Another disadvantage of the known dispensing vessel consists in that it's very out of a cold starting state takes a long time (namely until the sanitary water in the container replaced) until heated sanitary water is delivered can be.
  • DE-U-91 12 876 describes a service water heat exchanger with a Primary and a secondary circuit with one around a filler helical pipe for the guidance of a Liquid, wherein the housing of a second liquid can be flowed through, wherein the filler body is hollow and with a Supply and a drain provided and as a water heater is provided.
  • Water in the primary circuit (heating water) is discharged from introduced at the top in the heat exchanger, flows around the Hot water tank in a helical space around the helically extending pipe, and leaves the Heat exchanger at the bottom.
  • the invention intends to provide a dispensing vessel, in both a cold and a warm one Initial state quickly the desired amount of sanitary water can deliver with the desired stable temperature.
  • a next goal is the creation of a dispensing vessel, at which the temperature of the supplied heated sanitary water is relatively insensitive to fluctuations in the flow rate of sanitary water.
  • Another object of the invention is to reduce or Preventing limescale from getting on with the water in contact parts of the dispensing container.
  • Yet another object of the invention is the creation a dispenser that is compact and cheap, and that with only a small pressure drop for the heating water and the sanitary water works.
  • the device of the type mentioned according to the invention characterized in that the Sanitary water pipe at a certain distance from the Walls of the heating water room is located.
  • the heating water so can the sanitary water pipe, whose turns preferably, but not necessarily, in a certain be at a mutual distance, completely rinse, so that an optimal heat transfer of the heating water can take place at the sanitary water. It can continue Heating water in this way both parallel and flow across the convolutions of the plumbing, which benefits the heat transfer and for a low Pressure drop of the heating water in the dispenser ensures.
  • the supply temperature of the heating water for example, of one Heat exchanger of a burner comes to be lowered. This avoids local hot zones in the sanitary water, which reduces lime deposits in the dispenser or avoids.
  • the Temperature drop of sanitary water in the dispenser smaller. It also improves the tap efficiency. Rising due to a lower heating water drainage temperature the energy coming from the heating water at its Heating can be absorbed.
  • Sanitary water drainage temperature thanks to the low supply temperature of the heating water less sensitive to fluctuations in the flow of sanitary water. Thereby can on a temperature sensor in the discharged sanitary water, normally for temperature control the discharged sanitary water is used, omitted and shall be sufficient for the purpose of such a scheme Temperature sensor that is usually already in the Heating water supply is available.
  • spacers The distance between the sanitary water pipe and the Walls of the boiler room, including the wall of the Container, is ensured by spacers.
  • the Spacers are made by placing the walls of the building locally Heating room deformed, separate spacers can but also remedy, preferably in the form of elongated elements, as attached to the walls Ribs extending across the turns of the Sanitary water pipe extend.
  • the Sanitary water pipe at least two helical convoluted conduit parts which are coaxial with each other are arranged. This distribution of Sanitary water supply in piping parts provides one significant enlargement of the heat exchanging surface.
  • the individual pipe parts are in arranged in interconnected annular spaces, wherein between the conduit parts an annular wall is appropriate.
  • the heating water in the annular Rooms can be in cross-countercurrent to the sanitary water in flow the line parts, so that a very good Heat transfer and a very large heating capacity is reached. This can change the length of the Sanitary water supply to be limited, which is only one low pressure loss of sanitary water over the Which has the tapping vessel, and which also causes the Heating water must travel a limited way, so that also the pressure drop of the heating water over the Dispenser is small.
  • Integrating a container with sanitary water in the Dispenser leads to a warm initial state to one fast delivery of hot sanitary water because it is in the Container is kept in stock, especially if a Sanitary water inlet opens into the container and a Sanitary water outlet with the end facing away from the container the sanitary water pipe is coupled.
  • the surrounds Sanitary water pipe the container which is a very compact, simple and therefore cheap construction results.
  • the container is centrally located in the boiler room, so that following the tap of sanitary water, if that Thong is finished, a direct and very effective Heating of the sanitary water in the container takes place. This is the heating water and sanitary water in the sanitary water heat extracted from the heat evenly cool, which is the lime deposit in the dispenser reduced. Even if several times in quick succession Sanitary water is tapped, so an undesirably high Temperature prevented.
  • the Container annular is the Sanitary water pipe surrounded by the tank. Also in this Case finds a direct warming of sanitary water instead, but from the inside out (assuming that the sanitary water first through the tank and then flows through the sanitary water pipe and the heating water in cross-counterflow to sanitary water flows). The warmest heating water is located in the central part of the device, so that the Cooling losses are relatively low.
  • the container can at the top and bottom of the device extend further by means of a double wall.
  • Figures 1 and 2 show a dispensing vessel, the one cylindrical shell 1, for example made of steel with a top wall 1a and a bottom wall 1b.
  • the mantle 1 Within the mantle 1 are three concentric annular partition walls 2a, 2b and 2c, for example made of steel.
  • the intermediate walls 2a and 2c are attached to the bottom wall 1 b of the shell 1, wherein a annular gap between the upper edge of the respective Wall 2a, 2c and the top wall 1a of the shell 1 open remains.
  • the Partitions can be found in the places of the column as well continue and there with one or more Perforations are provided.
  • a cylindrical Container 3 for example made of copper or stainless Steel
  • a hollow spiral 4 for example Copper or stainless steel, both arranged are intended to contain sanitary water to be heated.
  • the spiral 4 comprises three helical parts: a first Part lies between the partitions 2a and 2b, a second part is between the intermediate walls 2b and 2c and a third part lies between the intermediate wall 2c and the side wall of the mantle 1.
  • the centrally arranged Container 3 and the parts of the spiral 4 are such connected to each other, that sanitary water to be heated, which flows into the jacket 1, at one Sanitärwassereinlador 7 first in the container at the Bottom inflows and from the top of the tank 3 out in the topmost turn of the first part of Spiral 4 flows.
  • the sanitary water flows from the lowermost turn of the first part of the spiral 4 to the lowermost turn of the second part of the spiral 4 and from the topmost turn of the second part of the Spiral 4 to the topmost turn of the third part of the Spiral 4.
  • the sanitary water leaves the jacket 1 by a Sanitary water outlet 8.
  • the sanitary water and the heating water can also be used in opposite directions to those previously described each direction through the dispenser.
  • the jacket 1 and the Partitions 2a, 2b and 2c each with ribs 9 for Example made of plastic or metal.
  • Ribs 9 ensure that the turns of the spiral in one certain distance from the shell 1, the intermediate walls 2a-2c and the container to ensure optimal flow of the dispenser by the heating water and a optimal heat transfer between the heating water and to ensure the sanitary water.
  • the container 3 may be provided with ribs 9 to the intermediate wall 2a to keep at a certain distance.
  • the ribs or other spacers can also be made by one the respective wall in a thermoforming procedure deformed suitable manner.
  • Figure 3 shows a dispensing vessel comprising: a jacket 1 with a top wall 1a and a bottom wall 1b, a Partial wall 2 d, on the bottom wall 1 b of the shell. 1 is attached, wherein an annular gap between the Intermediate wall 2d and the top wall 1a is released; a centrally arranged cylindrical container 3, a spiral 4 with two helically wound Conduction parts, which are arranged concentrically and have abutting turns, one Heating water inlet 5, a heating water outlet 6, a sanitary water inlet 7, which extends to the upper part the container 3 extends into a sanitary water outlet 8 and ribs 9.
  • the sanitary water flows in the dispenser from Sanitary water inlet 7 to the sanitary water outlet 8, while the heating water from the heating water inlet 5 to Heating water outlet 6 flows.
  • Figure 4 shows a dispensing vessel comprising: a jacket 1 with a top wall 1a and a bottom wall 1b, a Intermediate wall 2e, on the top wall 1a of the shell. 1 is attached, wherein an annular gap between the Intermediate wall 2e and the lower wall 1b is left free, an annular container 3 located on the side wall of the shell 1 extends, a centrally arranged spiral 4, a heating water inlet 5, a Heating water outlet 6, a sanitary water inlet 7, a sanitary water outlet 8 and a spacer 10th
  • FIG. 5 shows the solid line with a solid line Temperature T of sanitary water at the Sanitary water outlet 7 of a previously shown dispensing vessel over time t.
  • the time of the beginning of the tap Sanitary water is denoted by tO, and t1 denotes the date of delivery of heat to the Heating water, for example, by a burner of a Combi boiler.
  • tO The time of the beginning of the tap Sanitary water
  • t1 denotes the date of delivery of heat to the Heating water, for example, by a burner of a Combi boiler.
  • tO The time of the beginning of the tap Sanitary water
  • t1 denotes the date of delivery of heat to the Heating water, for example, by a burner of a Combi boiler.
  • tO The time of the beginning of the tap Sanitary water
  • t1 denotes the date of delivery of heat to the Heating water, for example, by a burner of a Combi boiler.
  • tO The time of
  • the sanitary water tank have many different forms, not exclusive cylindrical or annular, but also for example mushroom-shaped or dumbbell-shaped.
  • the container can be constructed of several parts.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Claims (14)

  1. Dispositif pour le réchauffement d'eau sanitaire, comprenant un espace délimité par des murs pour l'eau de chauffage, dans lequel se trouve un réservoir pour l'eau sanitaire, un tube hélicoïdal avec quelques tours étant prévu dans l'espace de chauffage, lequel est relié au réservoir, caractérisé en ce que la conduite pour l'eau sanitaire (4) comprend deux parties de conduite tournées avec une forme hélicoïdale, ces parties de conduite étant disposées de façon concentrique, la partie intérieure des parties de conduite étant reliée sur son côté inférieur au réservoir, et la partie extérieure et la partie intérieure des parties de conduite étant reliées entre elles sur leurs faces supérieures,
    en ce que les deux parties de conduite sont disposées chacune dans des espaces de forme annulaire et reliés entre eux, une paroi de forme annulaire (2b, 2c, 2d, 2e) étant placée entre les espaces et une liaison entre un espace extérieur des espaces de forme annulaire et un second espace consécutif des espaces annulaires se trouvant sur un côté supérieur du dispositif,
    la conduite d'eau sanitaire (4) se trouvant à une certaine distance des parois (1, 1a, 1b, 2a, 2b, 2c, 2d, 2e, 3) de l'espace d'eau de chauffage, et
    une entrée d'eau de chauffage (5) ainsi qu'une sortie d'eau de chauffage (6) débouchant dans une partie inférieure du dispositif.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'entrée d'eau de chauffage (5) débouche dans une partie inférieure de l'espace extérieur des espaces annulaires et la sortie d'eau de chauffage (6) est aménagée pour l'évacuation sur un côté inférieur du dispositif de l'eau de chauffage circulant du réservoir vers le bas.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'une entrée d'eau sanitaire (7) débouche dans le réservoir (3) et une sortie d'eau sanitaire (8) est couplée avec l'extrémité, opposée au réservoir (3), de la conduite d'eau sanitaire (4).
  4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les parois (1, 2a, 2b, 2c, 2d, 2e, 3) de l'espace d'eau de chauffage sont pourvues d'écarteurs (9, 10).
  5. Dispositif selon la revendication 4, caractérisé en ce que les écarteurs sont formés en déformant localement les parois (1, 2a, 2b, 2c, 2d, 2e, 3) de l'espace de chauffage.
  6. Dispositif selon la revendication 4 ou 5, caractérisé en ce que les écarteurs (9) soient allongés et s'étendent transversalement aux tours de la conduite d'eau sanitaire (4).
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les tours de la conduite d'eau sanitaire (4) sont disposées à une certaine distance réciproque.
  8. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la liaison entre les espaces annulaires comprend une fente ou une ou plusieurs perforations dans la paroi (2b, 2c, 2d, 2e) annulaire.
  9. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une entrée d'eau de chauffage (5) et une sortie d'eau de chauffage (6) débouchent en un tel endroit dans l'espace d'eau de chauffage, de sorte que l'eau de chauffage circule dans le sens contraire à la conduite d'eau sanitaire (4).
  10. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la conduite d'eau sanitaire (4) entoure le réservoir (3).
  11. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'entrée d'eau sanitaire (7) va jusque dans une zone supérieure du réservoir (3).
  12. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la sortie d'eau de chauffage (6) est placée dans une paroi inférieure du dispositif.
  13. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la sortie d'eau sanitaire passe à travers la paroi inférieure (1b).
  14. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que chacune des parties de tuyau comprend plusieurs tours passés perpendiculairement entre eux les uns par rapport aux autres.
EP19990202300 1998-07-16 1999-07-12 Appareil de chauffage pour eau chaude sanitaire Expired - Lifetime EP0972994B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1009669 1998-07-16
NL1009669A NL1009669C2 (nl) 1998-07-16 1998-07-16 Inrichting voor het verwarmen van sanitairwater.

Publications (2)

Publication Number Publication Date
EP0972994A1 EP0972994A1 (fr) 2000-01-19
EP0972994B1 true EP0972994B1 (fr) 2005-04-20

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EP19990202300 Expired - Lifetime EP0972994B1 (fr) 1998-07-16 1999-07-12 Appareil de chauffage pour eau chaude sanitaire

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EP (1) EP0972994B1 (fr)
NL (1) NL1009669C2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1316723B1 (it) * 2000-03-03 2003-05-12 Merloni Termosanitari Spa Produttore di acqua calda ad accumulo a riscaldamento rapido di nuovaconcezione
ATE365900T1 (de) * 2004-12-18 2007-07-15 Neue En Verwertungsgmbh Wärmetauscher
PL232977B1 (pl) * 2017-02-07 2019-08-30 Aic Spolka Akcyjna Podgrzewacz wody

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1753300B2 (de) * 1968-01-13 1973-06-28 Joh Vaillant KG, 5630 Remscheid Brauchwasserbereiter fuer eine warmwasser-umlaufheizungs-anlage
FR2660056B1 (fr) * 1990-03-23 1994-07-22 Muller Cie Echangeur pour eau chaude sanitaire notamment pour chaudiere murale.
AT399391B (de) * 1990-10-19 1995-04-25 Vaillant Gmbh Brauchwasser-wärmetauscher
AT400984B (de) 1993-09-27 1996-05-28 Froeling Heizkessel Und Behael Vorrichtung zum erwärmen von brauchwasser mit hilfe eines heizmediums

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Publication number Publication date
NL1009669C2 (nl) 2000-01-18
EP0972994A1 (fr) 2000-01-19

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