ES2956445A1 - Passive low-pressure apparatus for cooling an undesirably high temperature or suppressing the combustion of a flame in a protected electrical device (Machine-translation by Google Translate, not legally binding) - Google Patents

Passive low-pressure apparatus for cooling an undesirably high temperature or suppressing the combustion of a flame in a protected electrical device (Machine-translation by Google Translate, not legally binding) Download PDF

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Publication number
ES2956445A1
ES2956445A1 ES202330328A ES202330328A ES2956445A1 ES 2956445 A1 ES2956445 A1 ES 2956445A1 ES 202330328 A ES202330328 A ES 202330328A ES 202330328 A ES202330328 A ES 202330328A ES 2956445 A1 ES2956445 A1 ES 2956445A1
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Spain
Prior art keywords
carrier
protected
electrical device
flame
protected electrical
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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.)
Pending
Application number
ES202330328A
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Spanish (es)
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ES2956445A8 (en
Inventor
Csaba Toht
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Megellan Se
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Megellan Se
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Publication of ES2956445A1 publication Critical patent/ES2956445A1/en
Publication of ES2956445A8 publication Critical patent/ES2956445A8/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
    • A62C35/10—Containers destroyed or opened by flames or heat
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/62—Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/28—Accessories for delivery devices, e.g. supports
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
    • A62C35/026—Permanently-installed equipment with containers for delivering the extinguishing substance the extinguishing material being put under pressure by means other than pressure gas, e.g. pumps
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
    • A62C35/11—Permanently-installed equipment with containers for delivering the extinguishing substance controlled by a signal from the danger zone
    • A62C35/13—Permanently-installed equipment with containers for delivering the extinguishing substance controlled by a signal from the danger zone with a finite supply of extinguishing material
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10—Releasing means, e.g. electrically released
    • A62C37/11—Releasing means, e.g. electrically released heat-sensitive
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10—Releasing means, e.g. electrically released
    • A62C37/11—Releasing means, e.g. electrically released heat-sensitive
    • A62C37/12—Releasing means, e.g. electrically released heat-sensitive with fusible links
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10—Releasing means, e.g. electrically released
    • A62C37/11—Releasing means, e.g. electrically released heat-sensitive
    • A62C37/14—Releasing means, e.g. electrically released heat-sensitive with frangible vessels
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
    • A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/028—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature with fusing sensing element
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
    • G05D23/121—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid characterised by the sensing element
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
    • G05D23/121—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid characterised by the sensing element
    • G05D23/122—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid characterised by the sensing element using a plurality of sensing elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
    • H02H5/086—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays of cooling or lubricating fluids
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Details Of Measuring And Other Instruments (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Measuring Fluid Pressure (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Manipulator (AREA)
  • Protection Of Static Devices (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

Passive low-pressure apparatus for lowering undesirably elevated temperature or suppressing combustion of a flame in protected electrical devices, which is arranged in the protected electrical device and consists of a carrier (1) within which a compressed refrigerant medium (3) is present.), where the carrier (1) is also provided with a filling valve (5) to fill the carrier (1) with the cooling medium (3), a pressure gauge (2) for passive control of the orientation of the refrigerant medium in the carrier (1) and a pressure sensor (4) to disconnect the protected device from electrical energy and connect it with the signaling equipment, where the carrier (1) is made of plastic, metal or metallic composition in any size and closed hollow shape, where the carrier (1) is provided with at least one temperature detector, for example, a thermal glass ampoule (6) that breaks in the protected device at the elevated temperature, which damages The carrier (1) and the medium (3) spills into the area of the protected electrical device and cools the undesirably high temperature or suppresses the combustion of a flame in this protected electrical device. The thermal glass bulb (6) is incorporated into the carrier by various mechanical methods, for example, screwing, gluing, welding, etc. Activation of the apparatus, when the glass bulb (6) breaks due to the undesirably elevated temperature, creates an opening in the carrier (1) through which the medium spills into the protected electrical device, starting at 50° c. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPCIÓNDESCRIPTION

APARATO PASIVO DE BAJA PRESIÓN PARA ENFRIAR UNA TEMPERATURA PASSIVE LOW PRESSURE APPARATUS TO COOL A TEMPERATURE

INDESEABLEMENTE ELEVADA O SUPRIMIR LA COMBUSTIÓN DE UNA LLAMA EN UN UNDESIRABLY HIGH OR SUPPRESS THE COMBUSTION OF A FLAME IN A

DISPOSITIVO ELÉCTRICO PROTEGIDOPROTECTED ELECTRICAL DEVICE

Campo de la invenciónfield of invention

La invención se refiere al enfriamiento de una temperatura indeseablemente elevada o a la supresión de la combustión de una llama en dispositivos eléctricos protegidos, por ejemplo, en unidades de climatización y tratamiento de aire, tomas de gas, subestaciones y centralitas eléctricas, en cajas de ordenadores, en servidores, centrales telefónicas y similares. En estos dispositivos eléctricos protegidos pueden producirse fenómenos térmicos indeseables, cuyos efectos negativos pueden conducir a una pérdida gradual de funcionalidad o la destrucción de estos dispositivos y, en casos extremos, incluso pueden conducir a la combustión de una llama. Esto puede ser causado por diversos procesos, tales como reacciones químicas indeseables, cortocircuitos eléctricos, sobrecalentamiento del sistema, arco eléctrico, quema de fluidos operativos, etc.The invention relates to the cooling of an undesirably high temperature or the suppression of the combustion of a flame in protected electrical devices, for example, in air conditioning and air treatment units, gas intakes, substations and electrical switchboards, in computer cases , in servers, telephone exchanges and the like. Undesirable thermal phenomena can occur in these protected electrical devices, the negative effects of which can lead to a gradual loss of functionality or the destruction of these devices and, in extreme cases, can even lead to the combustion of a flame. This can be caused by various processes, such as undesirable chemical reactions, electrical short circuits, system overheating, electric arcing, burning of operating fluids, etc.

Antecedentes de la invenciónBackground of the invention

Para disminuir el aumento de temperatura indeseable o para suprimir la combustión de una llama en dispositivos eléctricos protegidos, son adecuados los aparatos de baja presión. Hay aparatos automáticos de baja presión para enfriar la temperatura indeseablemente elevada o suprimir la combustión de una llama en dispositivos protegidos que comprenden un portador de medio refrigerante, cuya activación se basa en el estallido del portador de medio refrigerante debido a la temperatura indeseablemente elevada o la combustión de una llama que surge en un dispositivo protegido. Para estos dispositivos, la temperatura a la que se rompe el portador de medio refrigerante no puede controlarse simplemente para evitar el derrame del medio en el dispositivo protegido.To reduce undesirable temperature rise or to suppress the combustion of a flame in protected electrical devices, low pressure appliances are suitable. There are automatic low-pressure devices for cooling the undesirably high temperature or suppressing combustion of a flame in protected devices comprising a coolant medium carrier, the activation of which is based on the bursting of the coolant medium carrier due to the undesirably high temperature or the combustion of a flame arising in a protected device. For these devices, the temperature at which the cooling medium carrier ruptures cannot be controlled simply to prevent spillage of the medium into the protected device.

Resumen de la invenciónSummary of the invention

La desventaja mencionada anteriormente se elimina y el campo del equipo de protección se complementa mediante un aparato de baja presión para disminuir la temperatura indeseablemente elevada o suprimir la combustión de una llama en dispositivos eléctricos protegidos, que está dispuesto en este dispositivo eléctrico protegido y consiste en un portador dentro del cual está presente un medio refrigerante comprimido; el portador está provisto, además, de una válvula de llenado para llenar con el medio refrigerante el portador; además, el portador está provisto de un manómetro para el control pasivo de la orientación del medio refrigerante y un sensor de presión para desconectar el dispositivo eléctrico protegido de la energía eléctrica y para conectarlo con un equipo de señalización en caso de que se detecte una temperatura indeseablemente elevada dentro del dispositivo protegido, en donde el resumen de la invención es que el portador está hecho de plástico o metal o composición metálica en cualquier tamaño y forma cerrada hueca, en donde el portador está provisto, además, de al menos un detector de temperatura, por ejemplo, una ampolla de vidrio térmico. La ampolla de vidrio térmico se incorpora en el portador mediante varios métodos, por ejemplo, se enrosca, se pega, se suelda, etc., a la abertura de la carcasa del portador. En cuanto la temperatura en la zona de un dispositivo eléctrico protegido donde está dispuesto un aparato de baja presión aumenta a un cierto valor no deseado, la ampolla de vidrio se rompe, crea una abertura en el portador a través de la cual el medio refrigerante se derrama al interior de la zona del dispositivo eléctrico protegido y enfría la temperatura indeseablemente elevada o suprime la combustión de la llama.The above-mentioned disadvantage is eliminated and the field of protective equipment is supplemented by a low-pressure apparatus for lowering the undesirably high temperature or suppressing the combustion of a flame in protected electrical devices, which is arranged in this protected electrical device and consists of a carrier within which a compressed cooling medium is present; The carrier is further provided with a filling valve for filling the carrier with the cooling medium; In addition, the carrier is provided with a pressure gauge for passive control of the orientation of the cooling medium and a pressure sensor to disconnect the protected electrical device from electrical power and to connect it with signaling equipment in case of failure. detects an undesirably elevated temperature within the protected device, wherein the summary of the invention is that the carrier is made of plastic or metal or metallic composition in any size and hollow closed shape, wherein the carrier is further provided with at least a temperature detector, for example a thermal glass ampoule. The thermal glass bulb is incorporated into the carrier by various methods, for example, screwed, glued, welded, etc., to the opening of the carrier housing. As soon as the temperature in the area of a protected electrical device where a low pressure apparatus is arranged increases to a certain undesirable value, the glass ampoule breaks, creating an opening in the carrier through which the cooling medium is released. spills into the area of the protected electrical device and cools the undesirably elevated temperature or suppresses the combustion of the flame.

El portador de medio refrigerante está provisto de una junta de sellado para algunos tipos de equipos.The coolant carrier is provided with a sealing gasket for some types of equipment.

La temperatura de activación del aparato, cuando la ampolla de vidrio se rompe debido a la temperatura indeseablemente elevada, crea una abertura en el portador a través de la cual el medio refrigerante se derrama en el dispositivo eléctrico protegido, es de 50 °C. Las ampollas de vidrio están hechas de vidrio con diversas composiciones que se rompen a diferentes temperaturas en el intervalo de 50 °C a 260 °C.The activation temperature of the apparatus, when the glass bulb breaks due to the undesirably elevated temperature, creating an opening in the carrier through which the cooling medium spills into the protected electrical device, is 50 °C. Glass ampoules are made of glass with various compositions that break at different temperatures in the range of 50°C to 260°C.

La temperatura a la que se rompe la ampolla de vidrio térmico puede ajustarse usando ampollas que tengan diversas composiciones de vidrio y, por tanto, la activación del aparato de baja presión puede controlarse de acuerdo con las condiciones y suposiciones de que se produzca la temperatura indeseablemente aumentada.The temperature at which the thermal glass ampoule breaks can be adjusted by using ampoules having various glass compositions and, therefore, the activation of the low pressure apparatus can be controlled according to the conditions and assumptions of the undesirable temperature occurrence. increased.

Breve descripción de los dibujosBrief description of the drawings

La invención se describe con más detalle en las figuras adjuntas, donde la figura 1 muestra una vista lateral de un aparato de baja presión para disminuir la temperatura elevada o suprimir la combustión de una llama en los dispositivos eléctricos protegidos, que comprende una ampolla de vidrio, y la figura 2 muestra una vista lateral de un aparato de baja presión para disminuir la temperatura elevada o suprimir la combustión de una llama en los dispositivos eléctricos protegidos, que comprende 5 ampollas de vidrio.The invention is described in more detail in the accompanying figures, where Figure 1 shows a side view of a low pressure apparatus for lowering elevated temperature or suppressing combustion of a flame in protected electrical devices, comprising a glass ampoule , and Figure 2 shows a side view of a low pressure apparatus for reducing elevated temperature or suppressing the combustion of a flame in protected electrical devices, comprising 5 glass ampoules.

Ejemplos de realización de la invenciónExamples of embodiment of the invention

Ejemplo 1Example 1

El aparato pasivo de baja presión para disminuir una temperatura indeseablemente elevada o suprimir la combustión de una llama en los dispositivos eléctricos protegidos que se muestra en la figura 1 se crea para una disposición en un dispositivo eléctrico protegido, tal como una subestación de energía eléctrica más pequeña, en donde el aparato consiste en un portador 1 hecho de metal en forma de paralelepípedo recto hueco cerrado por soldadura, en donde el portador 1 está provisto, además, de una válvula de llenado 5 para llenar con el medio refrigerante 3 el portador 1, en el que se presuriza el medio refrigerante 3, el portador 1 está provisto, además, de un manómetro 2 para el control pasivo de la orientación del estado del medio refrigerante 3 en el portador 1. El portador 1 está provisto, además, de una ampolla de vidrio térmico 6 que está provista de una rosca en un lado y se enrosca en la carcasa del portador 1 donde se crea una abertura que tiene una rosca de modo que la abertura quede sellada. Si en un dispositivo eléctrico protegido, aquí en este ejemplo de realización con una subestación de energía eléctrica más pequeña, la temperatura sube al valor indeseable de 50 °C, la ampolla de vidrio 6 se rompe y, por tanto, daña el portador 1 en el que se forma una abertura y el medio refrigerante 3 se derrama al interior de la zona del dispositivo eléctrico protegido, es decir, al interior de la zona de la subestación de energía eléctrica más pequeña y enfría la temperatura indeseablemente elevada en este dispositivo protegido. De esta forma, el aparato pasivo de baja presión se activa y la temperatura de activación en este ejemplo de realización es de 50 °C. La ampolla de vidrio térmico 6 está hecha de vidrio que se rompe a la temperatura de 50 °C. Además, el aparato para disminuir la temperatura elevada o suprimir eventualmente la combustión de una llama en un dispositivo eléctrico protegido está provisto de un sensor de presión 4 para desconectar el dispositivo eléctrico protegido de la fuente de energía eléctrica y para conectarlo con el dispositivo de señalización si se alcanza la temperatura indeseable dada en el dispositivo eléctrico protegido.The low-pressure passive apparatus for lowering an undesirably elevated temperature or suppressing combustion of a flame in protected electrical devices shown in Figure 1 is provided for an arrangement in a protected electrical device, such as an electrical power substation. smaller, where the apparatus consists of a carrier 1 made of metal in the shape of a hollow straight parallelepiped closed by welding, where the carrier 1 is also provided with a filling valve 5 to fill the carrier with the cooling medium 3. 1, in which the cooling medium 3 is pressurized, the carrier 1 is further provided with a pressure gauge 2 for passive control of the orientation of the state of the cooling medium 3 in the carrier 1. The carrier 1 is further provided with of a thermal glass ampoule 6 which is provided with a thread on one side and is screwed into the housing of the carrier 1 where an opening is created having a thread so that the opening is sealed. If in a protected electrical device, here in this exemplary embodiment with a smaller electrical power substation, the temperature rises to the undesirable value of 50 °C, the glass bulb 6 breaks and thus damages the carrier 1 in which an opening is formed and the cooling medium 3 spills into the area of the protected electrical device, that is, into the area of the smallest electrical power substation and cools the undesirably high temperature in this protected device. In this way, the passive low pressure device is activated and the activation temperature in this example embodiment is 50 °C. The thermal glass ampoule 6 is made of glass that breaks at the temperature of 50 °C. Furthermore, the apparatus for reducing the elevated temperature or possibly suppressing the combustion of a flame in a protected electrical device is provided with a pressure sensor 4 for disconnecting the protected electrical device from the source of electrical energy and for connecting it with the signaling device. if the given undesirable temperature is reached in the protected electrical device.

Ejemplo 2Example 2

El aparato pasivo de baja presión para disminuir la temperatura indeseablemente elevada o la supresión de la combustión de una llama en un dispositivo eléctrico protegido que se muestra en la figura 2 se crea para una disposición en una subestación de energía eléctrica más grande, en donde el aparato consiste en un portador 1 hecho de metal en forma de un cilindro hueco cerrado, sellado en ambos extremos con una junta de sellado 7, en donde el portador 1 está provisto, además, de una válvula de llenado 5 para llenar con el medio refrigerante 3 el portador 1, en el que se presuriza el medio refrigerante 3, el portador 1 está provisto, además, de un manómetro 2 para el control pasivo de la orientación del estado del medio refrigerante 3 en el portador 1. El portador 1 está provisto, además, de cinco ampollas de vidrio térmico 6 distribuidas uniformemente alrededor del perímetro, que están provistas en un lado de una rosca y se enroscan en la carcasa del portador 1 donde están creadas las aberturas que tienen una rosca, de modo que las aberturas queden selladas.The low pressure passive apparatus for lowering undesirably elevated temperature or suppressing combustion of a flame in a protected electrical device shown in Figure 2 is created for an arrangement in a larger electrical power substation, where the apparatus consists of a carrier 1 made of metal in the form of a closed hollow cylinder, sealed at both ends with a sealing gasket 7, wherein the carrier 1 is further provided with a filling valve 5 for filling with the cooling medium 3 the carrier 1, in which the cooling medium 3 is pressurized, the carrier 1 is further provided with a pressure gauge 2 for passive control of the orientation of the state of the cooling medium 3 in the carrier 1. The carrier 1 is provided In addition, five thermal glass ampoules 6 distributed evenly around the perimeter, which are provided on one side with a thread and are screwed into the housing of the carrier 1 where the openings that have a thread are created, so that the openings are sealed.

A cierta temperatura indeseablemente elevada en un dispositivo protegido, una subestación de energía eléctrica más grande en este ejemplo de realización, las ampollas de vidrio 6 se rompen, lo que daña el portador 1, se crea una abertura en el portador 1 en la zona de cada ampolla rota 6 y el medio refrigerante 3 se derrama al interior de la zona del dispositivo protegido y enfría la temperatura indeseablemente elevada en el dispositivo protegido. At a certain undesirably elevated temperature in a protected device, a larger electrical power substation in this exemplary embodiment, the glass blisters 6 break, which damages the carrier 1, an opening is created in the carrier 1 in the area of each ampoule 6 breaks and the cooling medium 3 spills into the area of the protected device and cools the undesirably high temperature in the protected device.

Las ampollas de vidrio térmico 6 están hechas de vidrio que se rompe a la temperatura de 50 °C, que es la temperatura de activación del aparato de baja presión. Además, el aparato para disminuir la temperatura elevada o suprimir la combustión de una llama en un dispositivo eléctrico protegido está provisto de un sensor de presión 4 para desconectar el dispositivo eléctrico protegido de la fuente de energía eléctrica y para conectarlo con el dispositivo de señalización si se alcanza la temperatura indeseable dada en el dispositivo eléctrico protegido.The thermal glass ampoules 6 are made of glass that breaks at the temperature of 50 °C, which is the activation temperature of the low pressure apparatus. Furthermore, the apparatus for lowering the elevated temperature or suppressing the combustion of a flame in a protected electrical device is provided with a pressure sensor 4 to disconnect the protected electrical device from the source of electrical power and to connect it with the signaling device if the given undesirable temperature is reached in the protected electrical device.

Además, el aparato para disminuir la temperatura elevada o suprimir la combustión de una llama en un dispositivo eléctrico protegido está provisto de un sensor de presión 4 para desconectar el dispositivo eléctrico protegido de la fuente de energía eléctrica y conectarlo con el dispositivo de señalización si se alcanza la temperatura indeseable dada en el dispositivo eléctrico protegido.Furthermore, the apparatus for lowering the elevated temperature or suppressing the combustion of a flame in a protected electrical device is provided with a pressure sensor 4 to disconnect the protected electrical device from the electrical power source and connect it with the signaling device if it is reaches the undesirable temperature given in the protected electrical device.

Aplicabilidad IndustrialIndustrial Applicability

La invención se puede utilizar en dispositivos protegidos, por ejemplo, en unidades de climatización y tratamiento de aire, tomas de gas, subestaciones eléctricas, centralitas eléctricas, en cajas de ordenadores, en cajas de servidores, centrales telefónicas y similares. The invention can be used in protected devices, for example, in air conditioning and air treatment units, gas intakes, electrical substations, electrical switchboards, in computer cases, in server cases, telephone exchanges and the like.

Claims (2)

REIVINDICACIONES 1. Un aparato pasivo de baja presión para reducir una temperatura indeseablemente elevada o suprimir la combustión de una llama en un dispositivo eléctrico protegido, que está dispuesto en el dispositivo eléctrico protegido, consiste en un portador (1), en el que está presente un medio refrigerante comprimido (3); el portador (1) está provisto, además, de una válvula de llenado (4) para llenar con el medio refrigerante (3) el portador (1); además, de un manómetro (2) para el control pasivo de la orientación del estado del medio refrigerante (3) en el portador (1), y un sensor de presión (5) para desconectar el dispositivo protegido de la fuente de energía eléctrica y conectarlo con el equipo de señalización, caracterizado por que el portador (1) está hecho de plástico o metal o composición metálica en cualquier tamaño y forma cerrada hueca, en donde el portador (1) está provisto, además, de al menos un detector de temperatura, por ejemplo, una ampolla de vidrio térmico (6), que se incorpora en el portador (1) usando diversos métodos mecánicos, por ejemplo, se enrosca o se pega o se suelda y similar de modo que sella las aberturas en el portador (1), y después de su rotura debido a la temperatura de activación superior a 50 °C, se crea una abertura en el portador (1) para el derrame del medio refrigerante desde el portador (1) al interior de la zona del dispositivo eléctrico protegido para enfriar la temperatura o suprimir la combustión de una llama.1. A low-pressure passive apparatus for reducing an undesirably high temperature or suppressing the combustion of a flame in a protected electrical device, which is arranged in the protected electrical device, consists of a carrier (1), in which a compressed refrigerant medium (3); The carrier (1) is also provided with a filling valve (4) to fill the carrier (1) with the cooling medium (3); in addition, a pressure gauge (2) for passive control of the orientation of the state of the cooling medium (3) in the carrier (1), and a pressure sensor (5) to disconnect the protected device from the source of electrical energy and connect it with the signaling equipment, characterized in that the carrier (1) is made of plastic or metal or metallic composition in any size and hollow closed shape, where the carrier (1) is also provided with at least one detector of temperature, for example, a thermal glass ampoule (6), which is incorporated into the carrier (1) using various mechanical methods, for example, screwing or gluing or welding and the like so as to seal openings in the carrier (1), and after its breakage due to the activation temperature above 50 °C, an opening is created in the carrier (1) for the spillage of the cooling medium from the carrier (1) into the device area protected electrical to cool the temperature or suppress the combustion of a flame. 2. El aparato de acuerdo con la reivindicación 1, caracterizado por que el portador (1) está sellado con una junta de sellado. 2. The apparatus according to claim 1, characterized in that the carrier (1) is sealed with a sealing gasket.
ES202330328A 2022-04-26 2023-04-25 Passive low-pressure apparatus for cooling an undesirably high temperature or suppressing the combustion of a flame in a protected electrical device (Machine-translation by Google Translate, not legally binding) Pending ES2956445A1 (en)

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BG113691A (en) 2023-10-31
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RO137616A0 (en) 2023-08-30
HU5652U (en) 2023-09-28
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LU504059B1 (en) 2023-11-09

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