JPS6438558A - Cooling system - Google Patents

Cooling system

Info

Publication number
JPS6438558A
JPS6438558A JP19312687A JP19312687A JPS6438558A JP S6438558 A JPS6438558 A JP S6438558A JP 19312687 A JP19312687 A JP 19312687A JP 19312687 A JP19312687 A JP 19312687A JP S6438558 A JPS6438558 A JP S6438558A
Authority
JP
Japan
Prior art keywords
evaporator
solenoid valve
temperature
cooling
natural circulation
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
JP19312687A
Other languages
Japanese (ja)
Inventor
Tetsuo Yamada
Yoshinori Inoue
Shinji Miura
Masao Endo
Tadahiro Fukunaga
Yasutoshi Yoshida
Tomoyuki Cho
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.)
Shinko Electric Industries Co Ltd
Takenaka Komuten Co Ltd
Original Assignee
Shinko Electric Industries Co Ltd
Takenaka Komuten 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 Shinko Electric Industries Co Ltd, Takenaka Komuten Co Ltd filed Critical Shinko Electric Industries Co Ltd
Priority to JP19312687A priority Critical patent/JPS6438558A/en
Publication of JPS6438558A publication Critical patent/JPS6438558A/en
Pending legal-status Critical Current

Links

Landscapes

  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE: To obtain a cooling system requiring no power for a system conducting preliminary cooling at a thermal load generating point by disposing an evaporator at the thermal load generating point in parallel with an evaporator where a natural circulation cycle is formed through a gravitational heat pipe such that they can be switched selectively. CONSTITUTION: When the outer air temperature is lower than the indoor temperature of a room to be air-conditioned, a solenoid valve 11 is opened and cooling operation is conducted simply through natural circulation cycle of an evaporator 3. If the cooling capacity is insufficient for a load, a solenoid valve 12 is switched by an output signal from a liquid level sensor 18 and the level of refrigerant in an evaporator 4 is held at a desired level constantly in order to sustain a specified heat exchange rate. When the condensation pressure rises during operation, a temperature sensor 16 detects the temperature rise and a solenoid valve 13 is opened thus increasing refrigerant supply to the evaporator 4 in the natural circulation cycle. When the outer air temperature is higher than the indoor temperature of the room to be air-conditioned, the solenoid valve 11 is closed and cooling operation is conducted simply through compression refrigeration cycle.
JP19312687A 1987-07-31 1987-07-31 Cooling system Pending JPS6438558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19312687A JPS6438558A (en) 1987-07-31 1987-07-31 Cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19312687A JPS6438558A (en) 1987-07-31 1987-07-31 Cooling system

Publications (1)

Publication Number Publication Date
JPS6438558A true JPS6438558A (en) 1989-02-08

Family

ID=16302698

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19312687A Pending JPS6438558A (en) 1987-07-31 1987-07-31 Cooling system

Country Status (1)

Country Link
JP (1) JPS6438558A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000050822A1 (en) * 1999-02-24 2000-08-31 Hachiyo Engineering Co., Ltd. Heat pump system of combination of ammonia cycle and carbon dioxide cycle
CN114623616A (en) * 2021-12-01 2022-06-14 祥博传热科技股份有限公司 Energy-saving double-system cooling equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4822103U (en) * 1971-07-21 1973-03-13
JPS5872846A (en) * 1981-10-26 1983-04-30 日本電気システム建設株式会社 Air cooling device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4822103U (en) * 1971-07-21 1973-03-13
JPS5872846A (en) * 1981-10-26 1983-04-30 日本電気システム建設株式会社 Air cooling device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000050822A1 (en) * 1999-02-24 2000-08-31 Hachiyo Engineering Co., Ltd. Heat pump system of combination of ammonia cycle and carbon dioxide cycle
AU747666B2 (en) * 1999-02-24 2002-05-16 Hachiyo Engineering Co., Ltd. Heat pump system of combination of ammonia cycle and carbon dioxide cycle
US6619066B1 (en) 1999-02-24 2003-09-16 Hachiyo Engineering Co., Ltd. Heat pump system of combination of ammonia cycle carbon dioxide cycle
JP3458310B2 (en) * 1999-02-24 2003-10-20 八洋エンジニアリング株式会社 Heat pump system combining ammonia cycle and carbon dioxide cycle
CN114623616A (en) * 2021-12-01 2022-06-14 祥博传热科技股份有限公司 Energy-saving double-system cooling equipment

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