JPS5494150A - Freezer - Google Patents

Freezer

Info

Publication number
JPS5494150A
JPS5494150A JP22078A JP22078A JPS5494150A JP S5494150 A JPS5494150 A JP S5494150A JP 22078 A JP22078 A JP 22078A JP 22078 A JP22078 A JP 22078A JP S5494150 A JPS5494150 A JP S5494150A
Authority
JP
Japan
Prior art keywords
evaporator
liquid
heating
liquid level
accumulator
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
JP22078A
Other languages
Japanese (ja)
Other versions
JPS6233502B2 (en
Inventor
Kazuya Matsuo
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
Original Assignee
Hitachi 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 filed Critical Hitachi Ltd
Priority to JP22078A priority Critical patent/JPS5494150A/en
Publication of JPS5494150A publication Critical patent/JPS5494150A/en
Publication of JPS6233502B2 publication Critical patent/JPS6233502B2/ja
Granted 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06—Details of flow restrictors or expansion valves
    • F25B2341/068—Expansion valves combined with a sensor
    • F25B2341/0681—Expansion valves combined with a sensor the sensor is heated
    • 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
    • F25B2600/21—Refrigerant outlet evaporator temperature
    • 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
    • F25B2700/04—Refrigerant level

Landscapes

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

Abstract

PURPOSE: To improve heat conductivity and to reduce an evaporator in size by providing a liquid level detector on an accumulator, heating the heat sensing tube of an expansion valve so that liquid level is kept at a fixed value, and keeping the refrigerant heating degree at the outlet of an avaporator at 0.
CONSTITUTION: When the liquid level in an accumulator 5 has lowered, the heating rate of a heater 14 for heating a heat sensing tube 13 and the liquid reflux rate from an evaporator 4 are increased by a controller 15. When liquid level has risen, said liquid reflux rate decreases, and the liquid refrigerant level in said accumulator 5 is fixed where the outflow rate from an oil reflux hole 7 to a compressor 1 and said liquid reflux rate becomes equal to each other. Therefore, overheating degree is constantly kept at 0 at the outlet of said evaporator 4, the overheating range heretofore having covered the largest portion of said evaporator 4 is eliminated so that heat conductivity can be improved and said evaporator can be reduced in size.
COPYRIGHT: (C)1979,JPO&Japio
JP22078A 1978-01-06 1978-01-06 Freezer Granted JPS5494150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22078A JPS5494150A (en) 1978-01-06 1978-01-06 Freezer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22078A JPS5494150A (en) 1978-01-06 1978-01-06 Freezer

Publications (2)

Publication Number Publication Date
JPS5494150A true JPS5494150A (en) 1979-07-25
JPS6233502B2 JPS6233502B2 (en) 1987-07-21

Family

ID=11467871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22078A Granted JPS5494150A (en) 1978-01-06 1978-01-06 Freezer

Country Status (1)

Country Link
JP (1) JPS5494150A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000042839A (en) * 1998-12-28 2000-07-15 신영주 Heat exchanger
EP3719420A1 (en) * 2019-04-02 2020-10-07 Carrier Corporation Air conditioning system and control method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01137188U (en) * 1988-03-14 1989-09-20
JPH01137185U (en) * 1988-03-14 1989-09-20

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000042839A (en) * 1998-12-28 2000-07-15 신영주 Heat exchanger
EP3719420A1 (en) * 2019-04-02 2020-10-07 Carrier Corporation Air conditioning system and control method thereof

Also Published As

Publication number Publication date
JPS6233502B2 (en) 1987-07-21

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