EP0042117A3 - Heat pump - Google Patents

Heat pump Download PDF

Info

Publication number
EP0042117A3
EP0042117A3 EP81104327A EP81104327A EP0042117A3 EP 0042117 A3 EP0042117 A3 EP 0042117A3 EP 81104327 A EP81104327 A EP 81104327A EP 81104327 A EP81104327 A EP 81104327A EP 0042117 A3 EP0042117 A3 EP 0042117A3
Authority
EP
European Patent Office
Prior art keywords
heat pump
pressure
capillary tube
valve
line
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.)
Withdrawn
Application number
EP81104327A
Other languages
German (de)
French (fr)
Other versions
EP0042117A2 (en
Inventor
Dieter Kühl
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.)
Kkw Kulmbacher Klimagerate-Werk GmbH
Original Assignee
Kkw Kulmbacher Klimagerate-Werk 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 Kkw Kulmbacher Klimagerate-Werk GmbH filed Critical Kkw Kulmbacher Klimagerate-Werk GmbH
Publication of EP0042117A2 publication Critical patent/EP0042117A2/en
Publication of EP0042117A3 publication Critical patent/EP0042117A3/en
Withdrawn legal-status Critical Current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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • 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
    • F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/26—Problems to be solved characterised by the startup of the refrigeration 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/026—Compressor control by controlling unloaders
    • F25B2600/0261—Compressor control by controlling unloaders external to the compressor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

Bei einer Wärmepumpe nimmt der Antriebsmotor des Verdichters ohne besondere Vorkehrungen beim Anlaufen einen sehr hohen Strom auf, da er gegen hohe Druckdif­ ferenzen im Kältemittelkreislauf zu arbeiten hat. Um einen hohen Anlaufstrom zu vermeiden, ist es bereits bekannt, in einer sich zwischen der Saug- und der Druckseite des Kältemittelkreislaufes der Wärmepumpe erstreckenden Leitung ein Magnetventil anzuordnen und dieses Ventil zum Herstellen eines Druckausgleiches zwischen der Saug­ seite und der Druckseite während des Anlaufens des An­ triebsmotores zu öffnen. Aber auch das Ventil muß unter hohem Druck arbeiten. Es ist anfällig und zudem teuer. Eine Vereinfachung wird angestrebt. Die Vereinfachung wird bei einer Wärmepumpe, die zwischen ihrer Saugseite (5) und ihrer Druckseite (6) eine zum Druckausgleich ausgebildete Leitung (8) aufweist, dadurch erzielt, daß die Leitung (8) als Kapillar-Rohr ausgebildet ist. Durch das Kapillar-Rohr stellt sich bei abgestellter Wärmepumpe von selbst ein Druckausgleich ein. Der im Betrieb der Wärme­ pumpe durch das Kapillar-Rohr entstehende Leistungs­ verlust der Wärmepumpe ist sehr gering. In the case of a heat pump, the drive motor of the Compressor without any special precautions when starting up a very high current, since it can withstand high pressure differences has to work in the refrigerant circuit. To one to avoid high starting current, it is already known in one between the suction and the pressure side of the Refrigerant circuit of the heat pump extending Line to arrange a solenoid valve and this valve to create a pressure balance between the suction side and the pressure side during startup of the on open the drive motor. But the valve must also be under work under high pressure. It is fragile and also expensive. Simplification is aimed at. The simplification with a heat pump that is between its suction side (5) and its pressure side (6) one for pressure compensation trained line (8), achieved in that the Line (8) is designed as a capillary tube. By the Capillary tube turns off when the heat pump is switched off even a pressure equalization. The one in the operation of heat pump the resulting power through the capillary tube heat pump loss is very low.

EP81104327A 1980-06-18 1981-06-04 Heat pump Withdrawn EP0042117A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19808016104U DE8016104U1 (en) 1980-06-18 1980-06-18 HEAT PUMP
DE8016104U 1980-06-18

Publications (2)

Publication Number Publication Date
EP0042117A2 EP0042117A2 (en) 1981-12-23
EP0042117A3 true EP0042117A3 (en) 1982-06-02

Family

ID=6716369

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104327A Withdrawn EP0042117A3 (en) 1980-06-18 1981-06-04 Heat pump

Country Status (2)

Country Link
EP (1) EP0042117A3 (en)
DE (1) DE8016104U1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9300342A (en) * 1993-02-09 1994-09-27 Brasil Compressores Sa Arrangement for starting cooling systems with pressure difference at startup
US7260951B2 (en) 2001-04-05 2007-08-28 Bristol Compressors International, Inc. Pressure equalization system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2314591A (en) * 1940-06-20 1943-03-23 Gen Motors Corp Refrigerating apparatus
DE1051878B (en) * 1957-03-02 1959-03-05 Licencia Talalmanyokat Process for the combined operation of refrigeration machine and heat pump as well as equipment for carrying out the process
DE1163863B (en) * 1960-12-06 1964-02-27 Linde Eismasch Ag Device for the automatic relieved start-up of refrigeration compressors
US3495418A (en) * 1968-04-18 1970-02-17 Garrett Corp Refrigeration system with compressor unloading means
US3855813A (en) * 1973-08-01 1974-12-24 A Laurent Compressor control for refrigeration system
JPS53128037A (en) * 1977-04-15 1978-11-08 Hitachi Ltd Refrigeration apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2314591A (en) * 1940-06-20 1943-03-23 Gen Motors Corp Refrigerating apparatus
DE1051878B (en) * 1957-03-02 1959-03-05 Licencia Talalmanyokat Process for the combined operation of refrigeration machine and heat pump as well as equipment for carrying out the process
DE1163863B (en) * 1960-12-06 1964-02-27 Linde Eismasch Ag Device for the automatic relieved start-up of refrigeration compressors
US3495418A (en) * 1968-04-18 1970-02-17 Garrett Corp Refrigeration system with compressor unloading means
US3855813A (en) * 1973-08-01 1974-12-24 A Laurent Compressor control for refrigeration system
JPS53128037A (en) * 1977-04-15 1978-11-08 Hitachi Ltd Refrigeration apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Handbuch der Kaltetechnik, Sechster Band, Teil A, "Automatik-Zubehor-Inbetriebname-Gerauschbekampfung-Kalteanlagen-Warmepumpen" 1969, seiten 467-468 Springer Verlag, Berlin, DE H.L. VON CUBE: "Die Warmepumpe" *
PATENTS ABSTRACTS OF JAPAN, Band 3, Nr. 4, 17. Januar 1979, seite 57 M 45 & JP - A - 53 128037 (Hitachi Seisakusho K.K.) (08-11-1978) *

Also Published As

Publication number Publication date
DE8016104U1 (en) 1980-09-11
EP0042117A2 (en) 1981-12-23

Similar Documents

Publication Publication Date Title
DE2430314A1 (en) LIQUID RING VACUUM PUMP WITH UPSTANDING COMPRESSOR
EP0042117A3 (en) Heat pump
DE3314140A1 (en) COOLING CIRCUIT
DE2910966C2 (en)
DE1208960B (en) Shut-off valve driven by the pressure medium to be shut off, an auxiliary valve and a check valve
DE1119615B (en) Control valve for a double-acting, one-sided loaded hydraulic motor
DE3926492A1 (en) SHUT-OFF VALVE FOR COOLING OR AIR CONDITIONING
DE695726C (en) Device for stepless regulation of the delivery rate of a reciprocating compressor
EP0278333A3 (en) Control device for a pipe separator
AT364120B (en) DEVICE FOR HEATING AT LEAST TWO HEAT STORAGE, HEAT EXCHANGERS OR THE LIKE.
DE1163863B (en) Device for the automatic relieved start-up of refrigeration compressors
DE2503873B2 (en) Liquid ring pump unit
DE728279C (en) Two or more stage steam jet air extractors
DE3234493A1 (en) Refrigerating machine
DE576004C (en) Device for achieving pressure equalization in compressors driven by an electric motor
CH691510A5 (en) Method for operating a heating system.
DE2112922C3 (en) Pressure booster system
AT99061B (en) Device for maintaining a certain air dilution in a room by means of automatically switched on and off air suction devices.
DE936451C (en) Method for regulating the output of a compressed air motor driving the refrigeration machine of a weather cooling system and device for its implementation
CH370518A (en) Automatic switching device on vacuum pump systems
SU649891A1 (en) Hydraulic block of mine roof support section
DE665798C (en) Double seat valve for a compressed air control with an auxiliary piston serving for feedback
DE498812C (en) Compression chiller with jet pump as compressor
DE680838C (en) Boiler feed system with a multi-stage centrifugal pump with intermediate extraction
DE347689C (en) Idling device for electrically operated pumps and compressors with self-starters

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 FR IT

17P Request for examination filed

Effective date: 19811028

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE FR IT

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19820714

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KUEHL, DIETER