EP3543629A1 - Boîtier étanche aux fuites pour un processus cyclique - Google Patents

Boîtier étanche aux fuites pour un processus cyclique Download PDF

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Publication number
EP3543629A1
EP3543629A1 EP19159310.2A EP19159310A EP3543629A1 EP 3543629 A1 EP3543629 A1 EP 3543629A1 EP 19159310 A EP19159310 A EP 19159310A EP 3543629 A1 EP3543629 A1 EP 3543629A1
Authority
EP
European Patent Office
Prior art keywords
working fluid
housing
pressure
closed
tight
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.)
Granted
Application number
EP19159310.2A
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German (de)
English (en)
Other versions
EP3543629B1 (fr
Inventor
Tobias Lingk
Hans-Josef Spahn
Thomas-Friedrich Szuder
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.)
Vaillant GmbH
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Vaillant GmbH
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Publication date
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Publication of EP3543629A1 publication Critical patent/EP3543629A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/005—Arrangement or mounting of control or safety devices of safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—Component parts or details not otherwise provided for in this subclass
    • F25B2400/12—Inflammable refrigerants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2104—Temperatures of an indoor room or compartment

Definitions

  • the invention relates to irregular states in working fluid circuits, in which a working fluid acting as a refrigerant is conducted in a thermodynamic cycle, such as the Rankine cycle.
  • thermodynamic cycle such as the Rankine cycle.
  • These are mainly heat pumps, air conditioners and refrigerators, as they are used in residential buildings.
  • Residential buildings are understood to mean private houses, rental housing complexes, hospitals, hotel complexes, restaurants and combined residential and commercial buildings in which people live and work permanently, in contrast to mobile devices such as car air conditioners or transport boxes, or even industrial equipment or medical devices. What they all have in common is that they use energy to generate useful heat or useful cooling and form heat-transfer systems.
  • thermodynamic cycles have long been known, as well as the safety problems that can arise when using suitable working fluids.
  • the best known working fluids at the time are combustible and poisonous.
  • safety refrigerants consisting of fluorinated hydrocarbons.
  • these safety refrigerants damage the ozone layer, lead to global warming, and that their safety-related harmlessness led to constructive inattentiveness.
  • Up to 70% of the turnover was accounted for by the refill demand of leaking equipment and its leakage losses, which was accepted as long as this was considered economically justifiable in individual cases and promoted the need for replacement procurement.
  • the lower ignition limit of propane as working fluid is about 1.7% by volume in air, which corresponds to 38 g / m 3 in air.
  • Propane is also heavier than air, so sinks in still air on the ground and accumulates there. So if a part of the propane in a flow-poor zone of the closed space in which the disturbed unit is collect, the local explosion limits can be achieved much faster than can be expected from the quotient of total volume of volume to leaked amount of propane.
  • the WO 2015/032905 A1 seeks to solve this problem by an electric current generator in the opening or its interlocking this space is integrated and when actuated in a first step generates and provides the electrical energy with which the sensor is activated, and in the event of an alarm Lock then does not release, but causes a ventilation of the enclosed space, and only in a second step, an unlocking and opening allows.
  • the DE-PS 553 295 describes an encapsulated compression refrigeration machine in which the refrigerant compressor 1, its drive motor 2, evaporator 3, condenser 4 and control valve 5 are enclosed in a double-walled capsule 6 and 7, respectively. In the space between the double-walled capsule, a negative pressure is created and leaks, which could occur at the openings for cooling water and brine, sucked. The aspirated working fluid can subsequently be recovered if necessary. It should be noted that there is no ambient air within the encapsulated space and due to the negative pressure in the double jacket also can not penetrate into the encapsulated interior.
  • the DE 41 14 529 A1 describes a safety device for a filled with a dangerous medium refrigeration system, which consists of at least one complete refrigeration unit comprising a refrigerant circuit with evaporator, compressor and condenser, and a drive motor.
  • the system is enclosed gas-tight, the enclosure is designed after the technically possible maximum pressure in the event of failure, and from the enclosure, the connections for the refrigerant, a coolant and electrical supply, monitoring and control lines are pressure-tight to the outside. It can be connected to a surge tank.
  • the EP 1 666 287 describes a vehicle air conditioner with a refrigerant receiver that communicates with a gas-liquid separator via an externally controllable valve.
  • the valve can be closed when the detected pressure becomes equal to a predetermined pressure.
  • the signal for opening the valve can be made by leakage detection.
  • the object of the invention is therefore to provide a simple, easy to install and maintenance-free device for heating or for air conditioning, the problems solved better solves and no longer has the disadvantages.
  • a stainless steel pipe designed for 50 bar with a wall thickness of 4 millimeters and a diameter of 0.2 meters weighs only approx. 22 kg per meter. Even with internals such a device with a length of 1 meter to 1.60 meters of 2 people can be well transported and placed on stairs. In one embodiment of the invention, it is therefore provided that the length-to-diameter ratio is between 5 and 8.
  • FIG. 1 For evaporator and condenser.
  • FIG. 1 For evaporator and condenser.
  • FIG. 1 For evaporator and condenser.
  • FIG. 1 For evaporator and condenser.
  • FIG. 1 For evaporator and condenser.
  • FIG. 1 For evaporator and condenser.
  • FIG. 1 For evaporator and condenser.
  • a safety valve can be provided which leads into a pipe whose outlet leads to the outside.
  • a conduit may have a small diameter, for example 10 or 12 millimeters, allowing for installation in a disused chimney.
  • a vacuum can be applied in the interior, thus preventing an ignitable mixture from forming in the event of a leak. Also, in this case, a leak can be detected by a pressure increase.
  • a vacuum it is also possible to carry out inerting by means of nitrogen or carbon dioxide.
  • a connection for filling in inert gas is provided in one embodiment of the invention.
  • the construction can also be similar to filter cartridges that instead of an on-site maintenance easily replaced at regular intervals and as a deposit system to a collection point for treatment can be delivered.
  • Fig. 1 shows a schematic diagram of a working fluid circuit 1 with a compressor 2, a condenser 3, a pressure reduction 4 and an evaporator 5 in a closed housing 6.
  • the housing 6 has a heat source connection 7, a heat source flow 8, a heat sink flow 9th and a heat sink port 10.
  • the working fluid circuit 1 is in this example with the flammable working fluid propane, which is also known under the name R290 operated. Shown are no fittings such as shut-off, of course, the expert will provide this and kickback.
  • the device can be emptied via the emergency trigger 11, the safety valve 12 and the check valve 13 into the open 14 and can be filled via the filling valve 15 with inert gas.
  • the temperature and pressure control can be done by means of the pressure / temperature measurement 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Other Air-Conditioning Systems (AREA)
EP19159310.2A 2018-03-22 2019-02-26 Boîtier étanche aux fuites pour un processus cyclique Active EP3543629B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018106755.0A DE102018106755A1 (de) 2018-03-22 2018-03-22 Leckagedichtes Gehäuse für einen Kreisprozess

Publications (2)

Publication Number Publication Date
EP3543629A1 true EP3543629A1 (fr) 2019-09-25
EP3543629B1 EP3543629B1 (fr) 2023-10-25

Family

ID=65598481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19159310.2A Active EP3543629B1 (fr) 2018-03-22 2019-02-26 Boîtier étanche aux fuites pour un processus cyclique

Country Status (2)

Country Link
EP (1) EP3543629B1 (fr)
DE (1) DE102018106755A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4339529A1 (fr) * 2022-09-14 2024-03-20 Vaillant GmbH Port de service pour un boîtier de pompe à chaleur
EP4571213A1 (fr) * 2023-12-12 2025-06-18 Glen Dimplex Deutschland GmbH Procédé de réalisation d'une mesure de service dans un boîtier de commande d'un module de réfrigération et module de réfrigération

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019001719A1 (de) * 2019-03-13 2020-09-17 Stiebel Eltron Gmbh & Co. Kg Haustechnikgerrät und luftdichte Kabeldurchführung
DE102019123044A1 (de) * 2019-08-28 2021-03-04 Vaillant Gmbh Leckagedetektion
DE102024105599A1 (de) * 2024-02-28 2025-08-28 Vaillant Gmbh Siphon mit Sicherheitssperrvorrichtung
EP4620816A1 (fr) * 2024-03-22 2025-09-24 Airbus Operations GmbH Système de réfrigération à compression de vapeur, unité de cuisine de bord d'aéronef, cuisine de bord d'aéronef et aéronef

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9106051U1 (de) * 1991-05-16 1991-12-05 RAUM-KLIMA Technologie-GMBH., 7570 Baden-Baden Kälte- oder Wärmeaggregat
DE102012112347A1 (de) * 2012-12-14 2014-06-18 Thomas Hahn Wärme- und Kältebereitstellungsvorrichtung
DE102013106412A1 (de) * 2013-06-19 2014-12-24 Thomas Hahn Wärme- und Kältebereitstellungsvorrichtung sowie Verfahren zum Betreiben derselben
DE102014112545A1 (de) * 2014-09-01 2016-03-03 Denso Automotive Deutschland Gmbh Kältemittelkreis-Kompaktaggregat für ein Kraftfahrzeug

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE553295C (de) 1931-02-03 1932-06-23 Bbc Brown Boveri & Cie Gekapselte Kompressionskaeltemaschine
DE4114529A1 (de) 1991-05-03 1993-02-11 Aero Tech Klima Kaelte Sicherheitseinrichtung fuer eine kaeltetechnische anlage
JP2006162122A (ja) 2004-12-06 2006-06-22 Sanden Corp 車両用空調装置
WO2015032905A1 (fr) 2013-09-05 2015-03-12 Holger König Procédé permettant d'empêcher une fuite d'un contenant et contenant pourvu d'un dispositif anti-fuite

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9106051U1 (de) * 1991-05-16 1991-12-05 RAUM-KLIMA Technologie-GMBH., 7570 Baden-Baden Kälte- oder Wärmeaggregat
DE102012112347A1 (de) * 2012-12-14 2014-06-18 Thomas Hahn Wärme- und Kältebereitstellungsvorrichtung
DE102013106412A1 (de) * 2013-06-19 2014-12-24 Thomas Hahn Wärme- und Kältebereitstellungsvorrichtung sowie Verfahren zum Betreiben derselben
DE102014112545A1 (de) * 2014-09-01 2016-03-03 Denso Automotive Deutschland Gmbh Kältemittelkreis-Kompaktaggregat für ein Kraftfahrzeug

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4339529A1 (fr) * 2022-09-14 2024-03-20 Vaillant GmbH Port de service pour un boîtier de pompe à chaleur
EP4571213A1 (fr) * 2023-12-12 2025-06-18 Glen Dimplex Deutschland GmbH Procédé de réalisation d'une mesure de service dans un boîtier de commande d'un module de réfrigération et module de réfrigération

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Publication number Publication date
DE102018106755A1 (de) 2019-09-26
EP3543629B1 (fr) 2023-10-25

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