EP3486582A1 - Détection des fuites au moyen de capacité adsorbante - Google Patents

Détection des fuites au moyen de capacité adsorbante Download PDF

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Publication number
EP3486582A1
EP3486582A1 EP18200683.3A EP18200683A EP3486582A1 EP 3486582 A1 EP3486582 A1 EP 3486582A1 EP 18200683 A EP18200683 A EP 18200683A EP 3486582 A1 EP3486582 A1 EP 3486582A1
Authority
EP
European Patent Office
Prior art keywords
adsorber
working fluid
housing
closed
fluid
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
EP18200683.3A
Other languages
German (de)
English (en)
Other versions
EP3486582B1 (fr
Inventor
Tobias Lingk
Hans-Josef Spahn
Thomas-Friedrich Szuder
Thomas Badenhop
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
Original Assignee
Vaillant GmbH
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Filing date
Publication date
Application filed by Vaillant GmbH filed Critical Vaillant GmbH
Priority to PL18200683T priority Critical patent/PL3486582T3/pl
Publication of EP3486582A1 publication Critical patent/EP3486582A1/fr
Application granted granted Critical
Publication of EP3486582B1 publication Critical patent/EP3486582B1/fr
Priority to HRP20201026TT priority patent/HRP20201026T1/hr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F25B45/00—Arrangements for charging or discharging refrigerant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
    • 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
    • F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
    • F25B2345/002—Collecting refrigerant from a cycle
    • 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
    • F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
    • 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
    • F25B2500/32—Weight

Definitions

  • 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 adsorbent may be in the form of a bed, a shaped body, a paint, a Spray film or a coating to be equipped.
  • the support structure of the molding may consist of microstructure, lamellar structure, tube bundle, pipe register and sheet metal and must be mechanically stable and strong surface enlarging.
  • a circulation of the potentially contaminated air is usually continuous, but can also be initiated by a sensor that turns on the ventilation after reaching a threshold value or in the event of a detected accident.
  • the adsorption can be carried out inside or outside a closed space.
  • the requirements are mutually exclusive and also create conflicting goals in large numbers.
  • the object of the invention is therefore to resolve the conflicting goals and to provide a device which solves the problems presented safely.
  • heat transfer fluids are here all gaseous or liquid media to understand, with which heat is transferred, such as air, water, brine, heat transfer oils or the like.
  • the lever contains the supply line and the return line to the adsorber.
  • mutually parallel connected rectangular tubes serve, on the upper side of the strain gauges are applied.
  • the adsorber is flowed through horizontally.
  • the flow resistance does not affect the weight of the adsorber, since the two forces are perpendicular to each other.
  • the horizontal flow can be implemented favorably by a honeycomb construction of the adsorber.
  • a conveyor fan is provided in a further embodiment of the invention, which has at least one setting for a low flow rate and another setting for a higher flow rate.
  • the conveyor fan is connected to a battery that stores such a reserve energy amount that thus a contaminated air flow to the full Loading the adsorber can be promoted without the use of external energy through the adsorber.
  • the adsorber is equipped with a latent heat storage, which can absorb the heat of adsorption in the case of rapid loading with refrigerant.
  • the adsorber is designed as a replaceable cartridge, this is especially preferable when the adsorber is disposed within the housing.
  • the housing is designed in the lower part as a cone. Falling propane can be sucked so targeted, if the housing and its internals difficult circulation and diffusion.
  • Fig.1 shows a schematic diagram of a refrigerant 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. 9 and a heat sink connection 10.
  • the refrigerant circuit 1 is operated in this example with the flammable working fluid propane, which is also known under the name R290. Propane is heavier than air, therefore, it tends to sink in case of leakage in the refrigeration circuit 1 in the housing 6 down.
  • the bottom of the housing 6 is designed as a collection funnel 11.
  • this collection funnel 11 it must be neither an axisymmetric structure nor constructive to planar walls, all that is necessary is that the gas can sink down to a lowest point without turbulence.
  • a ventilation outlet 12 in which the possibly present air-propane mixture can be withdrawn.
  • this ventilation outlet is equipped with corresponding shut-off devices, not shown here, and usually connected to a flexible hose, which is connected to the adsorber port 13 of the adsorber 14.
  • the ventilation outlet 12 is designed so that no or only known and constant forces act on the adsorber connection.
  • the adsorber 14 is typically double-walled.
  • the incoming propane-air mixture is first led in the outer space to one end, where a flow deflection 15 takes place.
  • the propane-air mixture then enters the adsorber fixed bed 16 and flows through it in the opposite direction.
  • the propane is deposited on the adsorber fixed bed, which can be designed as an activated carbon honeycomb body.
  • the deposited propane leads at the place of deposition to a slight increase in weight due to the loading of the adsorber fixed bed.
  • the measuring lever is typically a thin-walled, flexible tube piece, preferably of a rectangular profile.
  • strain gauges 19 are mounted, which provide a deflection signal proportional to this deflection.
  • the increase in weight of the adsorber fixed bed 16 thus provides an indication of a leakage, the rate of weight gain an indication of the size of the leak.
  • the adsorption reduces the propane content in the air, which prevents the ignitability of the propane-air mixture, which is an advantage of this leak detection method.
  • the measuring lever 18 is fixed to a junction box 20, which in turn each has a fixed bearing for vertical forces 21 and a fixed bearing for horizontal forces 22.
  • the two fixed bearings are protected against vibrations and absorb the forces of the adsorber 14.
  • Strain gauges can also be provided in the junction box to measure the torsion.
  • the fan 23 Above the connection box, the fan 23 is provided for the return line 24, which returns the cleaned air into the upper-side ventilation inlet 25 into the housing 6.
  • the entire adsorption and measuring device can be enclosed by its own housing 26, which is equipped with a fire protection lining 27.
  • This fire protection lining 27 may be, for example, an intumescent coating, which foams in the case of an external heat source and shields the contents from the effects of heat for a while.
  • This fire protection lining 27 may be, for example, an intumescent coating, which foams in the case of an external heat source and shields the contents from the effects of heat for a while.
  • Fig. 1 For presentation in Fig. 1 It should be noted that this is not a true to scale representation. Depending on how much propane is to be separated or whether Further measures are provided for securing, the entire adsorption can be constructed relatively compact and typically occupies a volume of one to six liters, if a propane amount of about 50 grams to be deposited.
  • Fig. 3 shows a section through the measuring lever 18 and on the strain gauge mounted thereon 19.
  • the strain gauge expands and outputs a corresponding signal. Since the temperature can be different, the strain gauge should be temperature compensated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Sorption Type Refrigeration Machines (AREA)
EP18200683.3A 2017-11-16 2018-10-16 Dispositif de détection des fuites au moyen de capacité adsorbante Active EP3486582B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL18200683T PL3486582T3 (pl) 2017-11-16 2018-10-16 Urządzenie do wykrywania nieszczelności z użyciem adsorbera
HRP20201026TT HRP20201026T1 (hr) 2017-11-16 2020-06-29 Uređaj za detektiranje istjecanja uz pomoć adsorbera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017126952.5A DE102017126952A1 (de) 2017-11-16 2017-11-16 Leckageerkennung mittels Adsorber

Publications (2)

Publication Number Publication Date
EP3486582A1 true EP3486582A1 (fr) 2019-05-22
EP3486582B1 EP3486582B1 (fr) 2020-04-08

Family

ID=63878390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18200683.3A Active EP3486582B1 (fr) 2017-11-16 2018-10-16 Dispositif de détection des fuites au moyen de capacité adsorbante

Country Status (7)

Country Link
EP (1) EP3486582B1 (fr)
DE (1) DE102017126952A1 (fr)
DK (1) DK3486582T3 (fr)
ES (1) ES2804267T3 (fr)
HR (1) HRP20201026T1 (fr)
PL (1) PL3486582T3 (fr)
PT (1) PT3486582T (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019001634A1 (de) * 2019-03-08 2020-09-10 Stiebel Eltron Gmbh & Co. Kg Wärmepumpe
EP3767187A1 (fr) * 2019-07-16 2021-01-20 Vaillant GmbH Dispositif de sécurité d'une unité de pompe à chaleur
EP3767186A1 (fr) * 2019-07-16 2021-01-20 Vaillant GmbH Dispositif de sécurité d'une unité de pompe à chaleur
EP4209728A1 (fr) 2022-01-07 2023-07-12 Vaillant GmbH Pompe à chaleur avec adsorbeur et catalyseur
EP4336119A1 (fr) * 2022-09-09 2024-03-13 Vaillant GmbH Gestion d'humidité et évacuation de condensat pour boîtier de pompe à chaleur
DE102022124104A1 (de) 2022-09-20 2024-03-21 Vaillant Gmbh Adsorberentladung durch Verdrängungsdesorption
DE102022124089A1 (de) 2022-09-20 2024-03-21 Vaillant Gmbh Adsorberentladung
DE102022124106A1 (de) 2022-09-20 2024-03-21 Vaillant Gmbh Adsorbatverdünnung
DE102022124103A1 (de) 2022-09-20 2024-03-21 Vaillant Gmbh Adsorberentladung in Unterdruckkammer
DE102022124090A1 (de) 2022-09-20 2024-03-21 Vaillant Gmbh Thermische Adsorberentladung

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019121766A1 (de) * 2019-02-06 2020-08-06 Vaillant Gmbh Füllstandssensor
DE102019118977A1 (de) * 2019-02-06 2020-08-20 Vaillant Gmbh Adsorberkühlung
DE102019001531A1 (de) * 2019-03-07 2020-09-10 Stiebel Eltron Gmbh & Co. Kg Wärmepumpenvorrichtung und Regelsystem für Membran-Ausdehnungsgefäße
DE102019004588A1 (de) * 2019-07-04 2021-01-07 Stiebel Eltron Gmbh & Co. Kg Sole-Wärmepumpe
DE102019120848A1 (de) * 2019-08-01 2021-02-04 Vaillant Gmbh Beladungsmessverfahren und Vorrichtung
US11231198B2 (en) 2019-09-05 2022-01-25 Trane International Inc. Systems and methods for refrigerant leak detection in a climate control system
DE102019124531A1 (de) * 2019-09-12 2021-03-18 Vaillant Gmbh Sicherheitsspülvorrichtung für eine Wärmepumpe
DE102021102722A1 (de) 2021-02-05 2022-08-11 Vaillant Gmbh Verfahren und Anordnung zur Feststellung von Kältemittelleckagen in einem Kältekreislauf, der in einem geschlossenen Gehäuse angeordnet ist
DE102021213213A1 (de) 2021-11-24 2023-05-25 Robert Bosch Gesellschaft mit beschränkter Haftung Wärmepumpenmodul mit Explosionsschutzvorrichtung
DE102021214715A1 (de) 2021-12-20 2023-06-22 Robert Bosch Gesellschaft mit beschränkter Haftung Wärmepumpenvorrichtung und Auffangeinheit für die Wärmepumpenvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19525064C1 (de) * 1995-07-10 1996-08-01 Joachim Dr Ing Paul Kältemaschine
EP1014015A1 (fr) * 1998-06-11 2000-06-28 Sanyo Electric Co., Ltd. Dispositif collecteur de fluide frigorigene, procede de collecte de liquide frigorigene, refrigerateur muni de ce dispositif, procede de regulation de liquide frigorigene dans un circuit de liquide frigorigene ou bien dispositif et procede de regeneration pour dispositif collecteur de liquide frigor
DE102015221328A1 (de) * 2014-10-31 2016-05-04 Bosch Automotive Service Solutions Llc System und Verfahren zum Auslassen von Kühlmittel von einem Klimaanlagensystem
EP3106780A1 (fr) * 2015-06-17 2016-12-21 Vaillant GmbH Installation de pompes a chaleur

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
DE19526980A1 (de) 1995-07-25 1997-01-30 York Int Gmbh Verfahren und eine Vorrichtung zur Reinigung von Luft
DE102011116863A1 (de) 2011-10-25 2013-04-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Sicherung einer Vorrichtung für einen thermodynamischen Kreisprozess und abgesicherte Vorrichtung für einen thermodynamischen Kreisprozess
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
DE19525064C1 (de) * 1995-07-10 1996-08-01 Joachim Dr Ing Paul Kältemaschine
EP1014015A1 (fr) * 1998-06-11 2000-06-28 Sanyo Electric Co., Ltd. Dispositif collecteur de fluide frigorigene, procede de collecte de liquide frigorigene, refrigerateur muni de ce dispositif, procede de regulation de liquide frigorigene dans un circuit de liquide frigorigene ou bien dispositif et procede de regeneration pour dispositif collecteur de liquide frigor
DE102015221328A1 (de) * 2014-10-31 2016-05-04 Bosch Automotive Service Solutions Llc System und Verfahren zum Auslassen von Kühlmittel von einem Klimaanlagensystem
EP3106780A1 (fr) * 2015-06-17 2016-12-21 Vaillant GmbH Installation de pompes a chaleur

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019001634A1 (de) * 2019-03-08 2020-09-10 Stiebel Eltron Gmbh & Co. Kg Wärmepumpe
EP3767187A1 (fr) * 2019-07-16 2021-01-20 Vaillant GmbH Dispositif de sécurité d'une unité de pompe à chaleur
EP3767186A1 (fr) * 2019-07-16 2021-01-20 Vaillant GmbH Dispositif de sécurité d'une unité de pompe à chaleur
EP4209728A1 (fr) 2022-01-07 2023-07-12 Vaillant GmbH Pompe à chaleur avec adsorbeur et catalyseur
DE102022100269A1 (de) 2022-01-07 2023-07-13 Vaillant Gmbh Katalytische Abluftbehandlung für eine Wärmepumpe
EP4336119A1 (fr) * 2022-09-09 2024-03-13 Vaillant GmbH Gestion d'humidité et évacuation de condensat pour boîtier de pompe à chaleur
DE102022124104A1 (de) 2022-09-20 2024-03-21 Vaillant Gmbh Adsorberentladung durch Verdrängungsdesorption
DE102022124089A1 (de) 2022-09-20 2024-03-21 Vaillant Gmbh Adsorberentladung
DE102022124106A1 (de) 2022-09-20 2024-03-21 Vaillant Gmbh Adsorbatverdünnung
DE102022124103A1 (de) 2022-09-20 2024-03-21 Vaillant Gmbh Adsorberentladung in Unterdruckkammer
DE102022124090A1 (de) 2022-09-20 2024-03-21 Vaillant Gmbh Thermische Adsorberentladung
EP4342569A1 (fr) 2022-09-20 2024-03-27 Vaillant GmbH Dilution d'adsorbat
EP4349476A2 (fr) 2022-09-20 2024-04-10 Vaillant GmbH Régénération d'un adsorbant par un procédé de désorption par déplacement

Also Published As

Publication number Publication date
PT3486582T (pt) 2020-07-13
HRP20201026T1 (hr) 2021-01-08
DE102017126952A1 (de) 2019-05-16
DK3486582T3 (da) 2020-07-13
PL3486582T3 (pl) 2020-09-07
EP3486582B1 (fr) 2020-04-08
ES2804267T3 (es) 2021-02-05

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