JPS6423082A - Circuit of operating a plurality of low- temperature showcases - Google Patents

Circuit of operating a plurality of low- temperature showcases

Info

Publication number
JPS6423082A
JPS6423082A JP62176862A JP17686287A JPS6423082A JP S6423082 A JPS6423082 A JP S6423082A JP 62176862 A JP62176862 A JP 62176862A JP 17686287 A JP17686287 A JP 17686287A JP S6423082 A JPS6423082 A JP S6423082A
Authority
JP
Japan
Prior art keywords
heat exchanger
layer heat
cooling unit
inner layer
outer layer
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
JP62176862A
Other languages
Japanese (ja)
Other versions
JPH076713B2 (en
Inventor
Daizaburo Kishimoto
Tsutomu Tanaka
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP62176862A priority Critical patent/JPH076713B2/en
Priority to KR8808940A priority patent/KR920000123B1/en
Publication of JPS6423082A publication Critical patent/JPS6423082A/en
Publication of JPH076713B2 publication Critical patent/JPH076713B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • 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
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/22—Refrigeration systems for supermarkets

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Defrosting Systems (AREA)

Abstract

PURPOSE: To shorten the defrost operation time of an inner layer heat exchanger for a low temperature showcase by coupling the piping such that high pressure refrigerant flows sequentially through the inner layer heat exchanger and the outer layer heat exchanger of each cooling unit sequentially at the time of defrost operation and coupling the inlet sides of the outer layer heat exchanger of each cooling unit through an equalizer. CONSTITUTION: At the time of defrost operation, liquid refrigerant storing in the inner layer heat exchanger 11 of a cooling unit 18B-1 remote from a condensing unit 18A in terms of piping length is fed to the outer layer heat exchanger thereof and to the inner layer heat exchanger 11 of a cooling unit 18B-n closest to the condensing unit 18A in terms of piping length and susceptible to deficiency of refrigerant. Since liquid refrigerant in the inner layer heat exchanger 11 of the cooling unit 18B-1 decreases and the temperature thereof increases easily, defrost time thereof can be shortened similarly to that of other cooling unit 18B-n. Furthermore, liquid refrigerant to the outer layer heat exchanger 11 of other cooling unit 18B-n increases to accelerate evaporation thus attaining a specified cooling effect.
JP62176862A 1987-07-15 1987-07-15 Operation circuit for multiple low-temperature shows Expired - Fee Related JPH076713B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62176862A JPH076713B2 (en) 1987-07-15 1987-07-15 Operation circuit for multiple low-temperature shows
KR8808940A KR920000123B1 (en) 1987-07-15 1988-07-15 Refrigerating circuit device for multi type show-case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62176862A JPH076713B2 (en) 1987-07-15 1987-07-15 Operation circuit for multiple low-temperature shows

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP17255891A Division JPH071135B2 (en) 1991-07-12 1991-07-12 Refrigeration equipment

Publications (2)

Publication Number Publication Date
JPS6423082A true JPS6423082A (en) 1989-01-25
JPH076713B2 JPH076713B2 (en) 1995-01-30

Family

ID=16021115

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62176862A Expired - Fee Related JPH076713B2 (en) 1987-07-15 1987-07-15 Operation circuit for multiple low-temperature shows

Country Status (2)

Country Link
JP (1) JPH076713B2 (en)
KR (1) KR920000123B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005069673A (en) * 2003-08-06 2005-03-17 Gac Corp Cooling unit and cooling system
JP2010060158A (en) * 2008-09-01 2010-03-18 Nisshin Toa Inc Air distribution device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19612818C2 (en) * 1996-03-30 1998-04-09 Schloemann Siemag Ag Process for cooling warm-rolled steel profiles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005069673A (en) * 2003-08-06 2005-03-17 Gac Corp Cooling unit and cooling system
JP2010060158A (en) * 2008-09-01 2010-03-18 Nisshin Toa Inc Air distribution device

Also Published As

Publication number Publication date
KR890002620A (en) 1989-04-11
JPH076713B2 (en) 1995-01-30
KR920000123B1 (en) 1992-01-09

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees