JPS6488064A - Refrigerant circuit for water cooler and heater - Google Patents

Refrigerant circuit for water cooler and heater

Info

Publication number
JPS6488064A
JPS6488064A JP24382887A JP24382887A JPS6488064A JP S6488064 A JPS6488064 A JP S6488064A JP 24382887 A JP24382887 A JP 24382887A JP 24382887 A JP24382887 A JP 24382887A JP S6488064 A JPS6488064 A JP S6488064A
Authority
JP
Japan
Prior art keywords
refrigerant
receiver
pressure
solenoid valve
valve
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.)
Pending
Application number
JP24382887A
Other languages
Japanese (ja)
Inventor
Koji Shigeta
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.)
Hitachi Ltd
Hitachi Shimizu Engineering Co Ltd
Original Assignee
Hitachi Ltd
Hitachi Shimizu Engineering Co Ltd
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 Hitachi Ltd, Hitachi Shimizu Engineering Co Ltd filed Critical Hitachi Ltd
Priority to JP24382887A priority Critical patent/JPS6488064A/en
Publication of JPS6488064A publication Critical patent/JPS6488064A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

PURPOSE: To sufficiently recover a refrigerant by constituting a refrigerant circuit for by-passing a condensing pressure control valve by arranging a solenoid valve in parallel with the control valve. CONSTITUTION: When a water cooling and warming machine is operated normally, a refrigerant coming out of a compressor 1 is liquefied under a high pressure by means of an air-cooled condenser 2, supplied to a receiver 4 through a condensing pressure control valve 3, depressurized by means of an expansion valve 6 through a solenoid valve 5 for liquid, and returned to the compressor 1 after the refrigerant is gasified under a low pressure by means of a water cooler 7. While the machine is operated, a by-pass solenoid valve 9 is closed and the condensing pressure of the condenser 2 is maintained at a fixed value by adjusting the quantity of the refrigerant in the condenser 2 by opening and closing the control valve 3 at about a set pressure. In addition, a by-pass valve 8 for gas works to maintain the pressure in the receiver 4 at a constant level by by-passing a gas from the compressor 1 side when the pressure of the receiver 4 becomes lower than a prescribed value. At the time of shifting the operation of the machine to refrigerant recovering operation, the whole quantity of the refrigerant can be recovered to the receiver 3 and the pipeline around the receiver 4 when the operation of the machine is continued by closing the solenoid valve 5 for liquid and opening the by-pass solenoid valve 9.
JP24382887A 1987-09-30 1987-09-30 Refrigerant circuit for water cooler and heater Pending JPS6488064A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24382887A JPS6488064A (en) 1987-09-30 1987-09-30 Refrigerant circuit for water cooler and heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24382887A JPS6488064A (en) 1987-09-30 1987-09-30 Refrigerant circuit for water cooler and heater

Publications (1)

Publication Number Publication Date
JPS6488064A true JPS6488064A (en) 1989-04-03

Family

ID=17109537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24382887A Pending JPS6488064A (en) 1987-09-30 1987-09-30 Refrigerant circuit for water cooler and heater

Country Status (1)

Country Link
JP (1) JPS6488064A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1978251A2 (en) 2007-03-28 2008-10-08 Kabushiki Kaisha Toyota Jidoshokki Refrigerant suction structure in fixed displacement type piston compressor, and operation control method in fixed displacement type piston compressor
EP2034183A2 (en) 2007-09-04 2009-03-11 Kabushiki Kaisha Toyota Jidoshokki Suction structure in piston type compressor
JP2012185184A (en) * 2012-07-02 2012-09-27 Seiko Epson Corp Temperature control apparatus of electronic component, and handler apparatus
JP2012208132A (en) * 2012-07-31 2012-10-25 Seiko Epson Corp Temperature control device of electronic component and handler device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1978251A2 (en) 2007-03-28 2008-10-08 Kabushiki Kaisha Toyota Jidoshokki Refrigerant suction structure in fixed displacement type piston compressor, and operation control method in fixed displacement type piston compressor
EP2034183A2 (en) 2007-09-04 2009-03-11 Kabushiki Kaisha Toyota Jidoshokki Suction structure in piston type compressor
JP2012185184A (en) * 2012-07-02 2012-09-27 Seiko Epson Corp Temperature control apparatus of electronic component, and handler apparatus
JP2012208132A (en) * 2012-07-31 2012-10-25 Seiko Epson Corp Temperature control device of electronic component and handler device

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