EP0041911A3 - Heat pumps - Google Patents

Heat pumps Download PDF

Info

Publication number
EP0041911A3
EP0041911A3 EP81420089A EP81420089A EP0041911A3 EP 0041911 A3 EP0041911 A3 EP 0041911A3 EP 81420089 A EP81420089 A EP 81420089A EP 81420089 A EP81420089 A EP 81420089A EP 0041911 A3 EP0041911 A3 EP 0041911A3
Authority
EP
European Patent Office
Prior art keywords
motor
group
compressor
fluid
driven fan
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
EP81420089A
Other languages
French (fr)
Other versions
EP0041911A2 (en
EP0041911B1 (en
Inventor
Robert Meric
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.)
HELPAC APPLICATIONS THERMODYNAMIQUES ET SOLAIRES SA
Original Assignee
HELPAC APPLICATIONS THERMODYNAMIQUES ET SOLAIRES SA
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 HELPAC APPLICATIONS THERMODYNAMIQUES ET SOLAIRES SA filed Critical HELPAC APPLICATIONS THERMODYNAMIQUES ET SOLAIRES SA
Priority to AT81420089T priority Critical patent/ATE10028T1/en
Publication of EP0041911A2 publication Critical patent/EP0041911A2/en
Publication of EP0041911A3 publication Critical patent/EP0041911A3/en
Application granted granted Critical
Publication of EP0041911B1 publication Critical patent/EP0041911B1/en
Expired 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
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/12—Removing frost by hot-fluid circulating system separate from the refrigerant system
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0684—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans the fans allowing rotation in reverse direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Defrosting Systems (AREA)
  • Central Heating Systems (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Reciprocating Pumps (AREA)
  • Air Conditioning Control Device (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

1. Heat pump comprisign : - two moto-compressor groups (1a, 1b) for liquefiable heat-transfer fluid, capable of being operated independently of each other ; - two evaporators (15a, 15b) respectively associated individually with the compressor (2a, 2b) of each group (1a, 1b) to form the cold source of a corresponding elementary heat pump ; - a channel (16) in which these two evaporators (15a, 15b) are arranched in series so as to be able to be traversed in heat exchange by a same current of an external reheating fluid such as air, capable of containing moisture ; - a motor-driven fan (17, 18) interposed in said channel to ensure the circulation therein of the reheating fluid ; - two condensers (7a, 7b) respectively associated individually with the compressor (2a, 2b) of each group (1a, 1b) to form the warm source of the corresponding elementary heat pump ; - heat exchange means for cooling these two condensers (7a, 7b) with the help of an external fluid so that heat may be taken up by the latter, characterized by the combination of the following features : - the motor-driven fan (17) is reversible ; - means (22a, 22b) are provided for detecting individually the icing-up of one or other of the two evaporators (15a, 15b) ; - command means (24, 4a, 4b) are also provided placed under the control of the icing up detecting means (22a, 22b) and which act in such a way that in normal running the two motor-compressor groups (1a, 1b) function simultaneously, but that when icing-up has been detected on the evaporator which is at that time situated downstream in the current of reheating fluid, they stop the corresponding motor-compressor group (1a, 1b), reverse the motor-driven fan (17, 18) and then, when the evaporator of the group thus stopped has been freed of ice, set this group in operation again without stopping the other and without reversing again the motor-driven fan (17, 18).
EP81420089A 1980-06-06 1981-06-04 Heat pumps Expired EP0041911B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81420089T ATE10028T1 (en) 1980-06-06 1981-06-04 HEAT PUMPS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8013026 1980-06-06
FR8013026A FR2484065A1 (en) 1980-06-06 1980-06-06 IMPROVEMENTS ON HEAT PUMPS

Publications (3)

Publication Number Publication Date
EP0041911A2 EP0041911A2 (en) 1981-12-16
EP0041911A3 true EP0041911A3 (en) 1982-12-08
EP0041911B1 EP0041911B1 (en) 1984-10-24

Family

ID=9242988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81420089A Expired EP0041911B1 (en) 1980-06-06 1981-06-04 Heat pumps

Country Status (4)

Country Link
EP (1) EP0041911B1 (en)
AT (1) ATE10028T1 (en)
DE (1) DE3166799D1 (en)
FR (1) FR2484065A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT380100B (en) * 1982-09-28 1986-04-10 Siemens Ag Oesterreich HEAT PUMP
AU589132B2 (en) * 1984-07-24 1989-10-05 Multistack International Limited Modular refrigeration system
GB2183320B (en) * 1985-11-08 1990-07-11 Ewald Gossler Method and device for compression of gases
DE102006024871B4 (en) * 2006-05-24 2019-08-08 ait-deutschland GmbH A method of defrosting the evaporator of a heat pump heating system

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR792390A (en) * 1935-07-12 1935-12-30 Delas Heating and cooling of premises by means of heat pumps
CH182171A (en) * 1935-06-15 1936-01-31 Sulzer Ag Air cooler.
US2062054A (en) * 1935-04-26 1936-11-24 Westinghouse Electric & Mfg Co Air conditioning apparatus
FR808335A (en) * 1935-06-18 1937-02-03 Thomson Houston Comp Francaise Systems
US2336549A (en) * 1941-11-28 1943-12-14 Clemeral Motors Corp Refrigerating apparatus
US2522484A (en) * 1948-10-04 1950-09-12 Trane Co Method of and apparatus for conditioning air
US2692481A (en) * 1951-03-16 1954-10-26 Gen Motors Corp Dual evaporator air cooling apparatus
US2763132A (en) * 1953-08-31 1956-09-18 Lawrence S Jue Dehumidifying apparatus
DE2612997A1 (en) * 1975-03-27 1976-10-07 Electricite & Isolation Elise Air flow room heating or cooling system - has batteries of heating and cooling devices connected to various thermo dynamic machines in specific orders
FR2305699A1 (en) * 1975-03-28 1976-10-22 Aznavorian Arachin Air conditioner heat pump system - has exchanger between air and refrigerant
FR2328163A1 (en) * 1975-10-16 1977-05-13 Chauffe Cie Gle IMPROVEMENTS TO THE PREMISES HEATING DEVICES THROUGH THE USE OF HEAT PUMPS
FR2378482A1 (en) * 1977-02-01 1978-08-25 Electrolux Ab PROCESS AND DEVICE FOR DEFROSTING A DISPLAY CABINET

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2698524A (en) * 1949-04-14 1955-01-04 Rygard Sune Ossian Heat transfer between two media according to the carnot principle
FR2305694A1 (en) * 1975-03-27 1976-10-22 Villaume Michel Air flow room heating or cooling system - has batteries of heating and cooling devices connected to various thermo dynamic machines in specific orders
US4332137A (en) * 1979-10-22 1982-06-01 Carrier Corporation Heat exchange apparatus and method having two refrigeration circuits

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2062054A (en) * 1935-04-26 1936-11-24 Westinghouse Electric & Mfg Co Air conditioning apparatus
CH182171A (en) * 1935-06-15 1936-01-31 Sulzer Ag Air cooler.
FR808335A (en) * 1935-06-18 1937-02-03 Thomson Houston Comp Francaise Systems
FR792390A (en) * 1935-07-12 1935-12-30 Delas Heating and cooling of premises by means of heat pumps
US2336549A (en) * 1941-11-28 1943-12-14 Clemeral Motors Corp Refrigerating apparatus
US2522484A (en) * 1948-10-04 1950-09-12 Trane Co Method of and apparatus for conditioning air
US2692481A (en) * 1951-03-16 1954-10-26 Gen Motors Corp Dual evaporator air cooling apparatus
US2763132A (en) * 1953-08-31 1956-09-18 Lawrence S Jue Dehumidifying apparatus
DE2612997A1 (en) * 1975-03-27 1976-10-07 Electricite & Isolation Elise Air flow room heating or cooling system - has batteries of heating and cooling devices connected to various thermo dynamic machines in specific orders
FR2305699A1 (en) * 1975-03-28 1976-10-22 Aznavorian Arachin Air conditioner heat pump system - has exchanger between air and refrigerant
FR2328163A1 (en) * 1975-10-16 1977-05-13 Chauffe Cie Gle IMPROVEMENTS TO THE PREMISES HEATING DEVICES THROUGH THE USE OF HEAT PUMPS
FR2378482A1 (en) * 1977-02-01 1978-08-25 Electrolux Ab PROCESS AND DEVICE FOR DEFROSTING A DISPLAY CABINET

Also Published As

Publication number Publication date
FR2484065A1 (en) 1981-12-11
FR2484065B1 (en) 1984-02-03
EP0041911A2 (en) 1981-12-16
EP0041911B1 (en) 1984-10-24
ATE10028T1 (en) 1984-11-15
DE3166799D1 (en) 1984-11-29

Similar Documents

Publication Publication Date Title
ES425332A1 (en) Freeze protection device in heat pump system
CA1093329A (en) Multiple compressor heat pump with coordinated design
CA1172039A (en) Environmental control system
CA1101211A (en) Swimming pool dehumidifier
US3150502A (en) No-freeze refrigerant control
US3520147A (en) Control circuit
JPS6484057A (en) Cooling device and control method thereof
US4091547A (en) Heat recovery means for drying apparatus
US3006613A (en) Self-contained air conditioning apparatus adapted for heating, cooling and dehumidification
DE3166799D1 (en) Heat pumps
US3371504A (en) Heat exchanger for air conditioner
EP0040529A3 (en) Environmental control system
US3060698A (en) Heat pump and method of operation
CA1131924A (en) Reduced power consumption air conditioning
JPS5340450A (en) Defrost system of air cool heat pump type air conditioner
US3224214A (en) Heat pump apparatus and method
KR890001696Y1 (en) Cooling and defrosting unit for drying apparatus
FR2345679A1 (en) Heat pump for drying bulk material - recuperates heat from refrigerant condenser and cold air flows through evaporator and subcooler
JPS646657A (en) Multiple chamber type air conditioner
ES2054536A2 (en) Method and apparatus for heat pump defrost
JPS54134851A (en) Heat pump system freezer
US2995345A (en) Air conditioning apparatus
ES8405131A1 (en) Combined refrigerant circuit and hot water preheater, air conditioning system using same and section of such system including the combination.
CA1206557A (en) Air conditioning heat pump system having an initial frost monitoring control means
US3138939A (en) Air cooling system for below freezing temperatures

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

Designated state(s): AT BE CH DE GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT SE

17P Request for examination filed

Effective date: 19821221

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LI SE

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

Ref country code: SE

Effective date: 19841024

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 PRESCRIBED TIME-LIMIT;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.

Effective date: 19841024

Ref country code: AT

Effective date: 19841024

REF Corresponds to:

Ref document number: 10028

Country of ref document: AT

Date of ref document: 19841115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3166799

Country of ref document: DE

Date of ref document: 19841129

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

Ref country code: GB

Effective date: 19890604

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

Ref country code: LI

Effective date: 19890630

Ref country code: CH

Effective date: 19890630

Ref country code: BE

Effective date: 19890630

BERE Be: lapsed

Owner name: HELPAC APPLICATIONS THERMODYNAMIQUES ET SOLAIRES

Effective date: 19890630

GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19900301