EP0837294A3 - Refrigeration system and method for monitoring a refrigeration system - Google Patents

Refrigeration system and method for monitoring a refrigeration system Download PDF

Info

Publication number
EP0837294A3
EP0837294A3 EP97117710A EP97117710A EP0837294A3 EP 0837294 A3 EP0837294 A3 EP 0837294A3 EP 97117710 A EP97117710 A EP 97117710A EP 97117710 A EP97117710 A EP 97117710A EP 0837294 A3 EP0837294 A3 EP 0837294A3
Authority
EP
European Patent Office
Prior art keywords
monitoring
cooling device
refrigeration system
evaporator
case
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
EP97117710A
Other languages
German (de)
French (fr)
Other versions
EP0837294B1 (en
EP0837294A2 (en
Inventor
Uwe Schwarzpaul
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.)
Dometic GmbH
Original Assignee
Electrolux Siegen GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Electrolux Siegen GmbH filed Critical Electrolux Siegen GmbH
Publication of EP0837294A2 publication Critical patent/EP0837294A2/en
Publication of EP0837294A3 publication Critical patent/EP0837294A3/en
Application granted granted Critical
Publication of EP0837294B1 publication Critical patent/EP0837294B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • F25B15/10—Sorption machines, plants or systems, operating continuously, e.g. absorption type with inert gas
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2104—Temperatures of an indoor room or compartment
    • 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
    • F25B2700/2106—Temperatures of fresh outdoor air
    • 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
    • F25B2700/2117—Temperatures of an evaporator
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/02—Sensors detecting door opening
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/008—Alarm devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

Bei einer Kühleinrichtung, insbesondere einem Kühlschrank für ein Hotelzimmer, und einem Verfahren zur Überwachung der Kühleinrichtung, ist eine Steuereinrichtung zur Steuerung der Kühleinrichtung vorgesehen, die mit einer Überwachungseinrichtung zur Ermittlung von Störfällen versehen ist. Durch die Überwachung kann bei Störfällen der Austritt eines Kältemittels aus der Kühleinrichtung beschränkt werden. Dies ist insbesondere bei durch einen Absorptionskreislauf betriebenen Kühleinrichtungen vorteilhaft, da diese häufig mit einer geräuschlos arbeitenden Thermosyphonpumpe angetrieben werden und eine Leckage erst spät bemerkt werden kann. Vorzugsweise ist bei einem Absorptionskreislauf mit einem Austreiber (1), einem Kondensator (5), einem Verdampfer (9) und einem Absorber (12) ein Temperaturfühler (19) am Verdampfer (9) angeordnet, so daß ein Auftreten des Störfalls schnell ermittelt wird.

Figure 00000001
In the case of a cooling device, in particular a refrigerator for a hotel room, and a method for monitoring the cooling device, a control device for controlling the cooling device is provided, which is provided with a monitoring device for determining malfunctions. The monitoring can limit the escape of a refrigerant from the cooling device in the event of malfunctions. This is particularly advantageous in the case of cooling devices operated by an absorption circuit, since these are often driven by a noiseless thermosiphon pump and leakage can only be noticed late. In an absorption circuit with an expeller (1), a condenser (5), an evaporator (9) and an absorber (12), a temperature sensor (19) is preferably arranged on the evaporator (9), so that an occurrence of the fault is quickly determined .
Figure 00000001
EP19970117710 1996-10-16 1997-10-13 Refrigeration system and method for monitoring a refrigeration system Expired - Lifetime EP0837294B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19642745 1996-10-16
DE1996142745 DE19642745C2 (en) 1996-10-16 1996-10-16 Absorber fridge

Publications (3)

Publication Number Publication Date
EP0837294A2 EP0837294A2 (en) 1998-04-22
EP0837294A3 true EP0837294A3 (en) 2001-12-05
EP0837294B1 EP0837294B1 (en) 2006-04-05

Family

ID=7808952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970117710 Expired - Lifetime EP0837294B1 (en) 1996-10-16 1997-10-13 Refrigeration system and method for monitoring a refrigeration system

Country Status (4)

Country Link
EP (1) EP0837294B1 (en)
JP (1) JPH10122712A (en)
DE (2) DE19642745C2 (en)
ES (1) ES2117611T3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA57849C2 (en) 1998-09-04 2003-07-15 Герхард КУНЦЕ Absorption cooling machine
DE10161181B4 (en) * 2001-12-13 2004-03-18 Buderus Heiztechnik Gmbh Process for controlling a diffusion absorption system
US7050888B2 (en) * 2003-11-26 2006-05-23 Norcold, Inc. Control system and method of controlling ammonium absorption refrigerators
CN102384634A (en) * 2011-06-24 2012-03-21 合肥美的荣事达电冰箱有限公司 Refrigeration device, and control device and method of anti-condensation heater therefor
CN103574993B (en) * 2012-07-27 2016-08-10 青岛德莱维电器有限公司 A kind of preparation method of refrigerator refrigeration system
US10745263B2 (en) 2015-05-28 2020-08-18 Sonicu, Llc Container fill level indication system using a machine learning algorithm
US20160348842A1 (en) 2015-05-28 2016-12-01 Sonicu, Llc Liquid container refill remote management system
CN110094931B (en) * 2019-05-30 2021-08-17 海信（山东）冰箱有限公司 Refrigerator temperature control method and device and refrigerator
USD1002676S1 (en) 2019-08-30 2023-10-24 Dometic Sweden Ab Appliance
USD1026969S1 (en) 2020-08-31 2024-05-14 Dometic Sweden Ab Refrigerator

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1484466A (en) * 1967-09-15
DE2135066A1 (en) * 1971-07-14 1973-01-25 Licentia Gmbh ELECTRONIC CONTROL DEVICE FOR ABSORBER COOLING UNITS
DE3133686A1 (en) * 1981-08-26 1983-03-17 Lattek, Gabriele, 4300 Essen Refrigerator or the like for recreational vehicles, caravans and similar
JPH02208460A (en) * 1989-02-03 1990-08-20 Sanyo Electric Co Ltd Operation monitor for absorption refrigerator
DE4012841A1 (en) * 1990-04-23 1991-10-24 Behr Gmbh & Co Air conditioning or cooling system esp. for motor vehicle - has coolant level detector responding differently to liquid and gas
DE4113170A1 (en) * 1990-05-01 1991-11-14 Loh Kg Rittal Werk Switchgear cabinet cooler with motor current monitoring devices - warning of deviations from rated currents in evaporator and condenser fan motors and compressor
GB2254452A (en) * 1991-04-04 1992-10-07 Total Temperature Control Limi Control of refrigerators and freezers
US5156013A (en) * 1990-05-29 1992-10-20 Sanyo Electric Co., Ltd. Control device for absorption refrigerator
JPH05157416A (en) * 1991-12-06 1993-06-22 Sanyo Electric Co Ltd Detecting device for abnormality of absorption refrigerating machine
DE4330923C1 (en) * 1993-09-13 1995-03-23 Loh Kg Rittal Werk Cooling unit (refrigerator) for a switchgear cabinet or an electronics housing
JPH07174433A (en) * 1993-12-16 1995-07-14 Ebara Corp Method for controlling absorption water cooler/heater
EP0741345A1 (en) * 1995-05-05 1996-11-06 Ranco Incorporated Of Delaware Method and device for controlling a process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH055564A (en) * 1991-06-28 1993-01-14 Toshiba Corp Air conditioner

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1484466A (en) * 1967-09-15
DE2135066A1 (en) * 1971-07-14 1973-01-25 Licentia Gmbh ELECTRONIC CONTROL DEVICE FOR ABSORBER COOLING UNITS
DE3133686A1 (en) * 1981-08-26 1983-03-17 Lattek, Gabriele, 4300 Essen Refrigerator or the like for recreational vehicles, caravans and similar
JPH02208460A (en) * 1989-02-03 1990-08-20 Sanyo Electric Co Ltd Operation monitor for absorption refrigerator
DE4012841A1 (en) * 1990-04-23 1991-10-24 Behr Gmbh & Co Air conditioning or cooling system esp. for motor vehicle - has coolant level detector responding differently to liquid and gas
DE4113170A1 (en) * 1990-05-01 1991-11-14 Loh Kg Rittal Werk Switchgear cabinet cooler with motor current monitoring devices - warning of deviations from rated currents in evaporator and condenser fan motors and compressor
US5156013A (en) * 1990-05-29 1992-10-20 Sanyo Electric Co., Ltd. Control device for absorption refrigerator
GB2254452A (en) * 1991-04-04 1992-10-07 Total Temperature Control Limi Control of refrigerators and freezers
JPH05157416A (en) * 1991-12-06 1993-06-22 Sanyo Electric Co Ltd Detecting device for abnormality of absorption refrigerating machine
DE4330923C1 (en) * 1993-09-13 1995-03-23 Loh Kg Rittal Werk Cooling unit (refrigerator) for a switchgear cabinet or an electronics housing
JPH07174433A (en) * 1993-12-16 1995-07-14 Ebara Corp Method for controlling absorption water cooler/heater
EP0741345A1 (en) * 1995-05-05 1996-11-06 Ranco Incorporated Of Delaware Method and device for controlling a process

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 506 (M - 1044) 6 November 1990 (1990-11-06) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 562 (M - 1494) 12 October 1993 (1993-10-12) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 10 30 November 1995 (1995-11-30) *

Also Published As

Publication number Publication date
DE59712611D1 (en) 2006-05-18
DE19642745C2 (en) 2000-09-14
JPH10122712A (en) 1998-05-15
EP0837294B1 (en) 2006-04-05
ES2117611T3 (en) 2006-10-16
ES2117611T1 (en) 1998-08-16
EP0837294A2 (en) 1998-04-22
DE19642745A1 (en) 1998-04-30

Similar Documents

Publication Publication Date Title
DE69119702T2 (en) Cooling system with refrigerant flow control
DE3215141C2 (en)
DE3925090A1 (en) METHOD FOR OPERATING A REFRIGERATION SYSTEM
EP0837294A3 (en) Refrigeration system and method for monitoring a refrigeration system
DE2705073A1 (en) THROTTLE VALVE FOR RELEASING THE REFRIGERANT IN THE REFRIGERANT CIRCUIT OF A VEHICLE AIR CONDITIONING SYSTEM
DE10316209B4 (en) Air flow control device
DE3907859C2 (en) Air-cooled refrigeration unit with a coolant circuit
EP2199706B1 (en) A switching device air conditioner and operation method thereof
DE10312234A1 (en) Operating control device and method for a linear compressor
WO2007115879A1 (en) Method for operating a refrigerating device comprising evaporators which are connected in parallel and refrigerating device therefor
DE19916609C2 (en) Flow controller that uses a DC motor
DE10308268A1 (en) air conditioning
DE10235783A1 (en) Refrigerator with fan and control method therefor
DE60026898T2 (en) air conditioning
EP0727628B1 (en) Control system and method of temperature control for refrigerators
DE10313850A1 (en) Coolant circulation operating method e.g. for combined coolant- and heat-pump-drive in motor vehicle, requires expanding coolant at evaporation pressure in the coolant unit operation
DE69120376T2 (en) Cooling system
EP1813897A2 (en) Method for regulating a cooling appliance
DE102012222240A1 (en) Cooling device, particularly domestic refrigerator, has compressor, two cooling zones, three heat exchangers and valve assemblies, where compressor is connected with first heat exchanger and second heat exchanger in refrigerant circuit
DE202006014246U1 (en) Cold vapor refrigerating machine
DE19832682A1 (en) Defrosting unit for evaporator of heat pump of air conditioner has line connecting one expansion valve to second expansion valve
EP1498673B1 (en) Hot gas defrost system for refrigeration systems
CH691236A5 (en) Method for operating a household refrigerator.
DE102004010066A1 (en) Vaporizer defrosting method for air/water heat pump, involves switching heat pump circulation from reversal cycle mode of operation to heat pump operation, and feeding hot gas to vaporizer through bypass, if liquefier freezes
EP1118825A2 (en) Siphon for a show cabinet

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

Kind code of ref document: A2

Designated state(s): DE ES FR GB IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

ITCL It: translation for ep claims filed

Representative=s name: PROPRIA PROTEZIONE PROPRIETA' IND.

GBC Gb: translation of claims filed (gb section 78(7)/1977)
EL Fr: translation of claims filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: BA2A

Ref document number: 2117611

Country of ref document: ES

Kind code of ref document: T1

TCNL Nl: translation of patent claims filed
PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

17P Request for examination filed

Effective date: 20020213

AKX Designation fees paid

Free format text: DE ES FR GB IT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DOMETIC GMBH

17Q First examination report despatched

Effective date: 20031010

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 20060405

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59712611

Country of ref document: DE

Date of ref document: 20060518

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060711

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2117611

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070108

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20101027

Year of fee payment: 14

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20121013

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121013

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20161003

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20160801

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20160812

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20160803

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59712611

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20180126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20171014