SE8306881D0 - DEVICE FOR CONTROL OF TEMPERATURES, TEMPERATURE DIFFERENCES OR REFILLING LEVELS IN REFRIGERATOR CIRCUITS - Google Patents

DEVICE FOR CONTROL OF TEMPERATURES, TEMPERATURE DIFFERENCES OR REFILLING LEVELS IN REFRIGERATOR CIRCUITS

Info

Publication number
SE8306881D0
SE8306881D0 SE8306881A SE8306881A SE8306881D0 SE 8306881 D0 SE8306881 D0 SE 8306881D0 SE 8306881 A SE8306881 A SE 8306881A SE 8306881 A SE8306881 A SE 8306881A SE 8306881 D0 SE8306881 D0 SE 8306881D0
Authority
SE
Sweden
Prior art keywords
temperatures
levels
regulation
temperature differences
refilling
Prior art date
Application number
SE8306881A
Other languages
Swedish (sv)
Other versions
SE8306881L (en
Inventor
W Nestler
E Wobst
C Kluge
E Preussker
G Ulbrich
F Franz
Original Assignee
Luft U Kaeltetechnik Veb K
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 Luft U Kaeltetechnik Veb K filed Critical Luft U Kaeltetechnik Veb K
Publication of SE8306881D0 publication Critical patent/SE8306881D0/en
Publication of SE8306881L publication Critical patent/SE8306881L/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
    • G05D23/121—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid characterised by the sensing element
    • G05D23/122—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid characterised by the sensing element using a plurality of sensing elements
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
    • 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
    • F25B49/027—Condenser 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • 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
    • F25B2400/13—Economisers
    • 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
    • F25B2400/16—Receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Temperature (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention relates to a regulation of temperatures, temperature differences or levels in refrigerant circuits in heat pump plants or refrigeration plants, preferably with a screw compressor, independently of the refrigerant used and of the operative range. Instability in the refrigeration circuit is thereby prevented, and the fluctuations of the evaporation end point no longer have a negative effect on the functioning of the regulation. Instead of the hitherto used thermostatic expansion valve, low-wear adjusting valves with two-point behaviour and high switching frequency are used as the setting members in the regulation circuit. <IMAGE>
SE8306881A 1982-12-14 1983-12-13 DEVICE FOR CONTROL OF TEMPERATURES, TEMPERATURE DIFFERENCES OR REFILLING LEVELS IN REFRIGERATOR CIRCUITS SE8306881L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD24592782 1982-12-14

Publications (2)

Publication Number Publication Date
SE8306881D0 true SE8306881D0 (en) 1983-12-13
SE8306881L SE8306881L (en) 1984-06-15

Family

ID=5543298

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8306881A SE8306881L (en) 1982-12-14 1983-12-13 DEVICE FOR CONTROL OF TEMPERATURES, TEMPERATURE DIFFERENCES OR REFILLING LEVELS IN REFRIGERATOR CIRCUITS

Country Status (5)

Country Link
JP (1) JPS59115939A (en)
DE (1) DE3329661A1 (en)
DK (1) DK571883A (en)
FR (1) FR2537707A1 (en)
SE (1) SE8306881L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4100749A1 (en) * 1991-01-12 1992-07-16 Danfoss As Regulator device for refrigerator - cools each evaporator in air current to chamber and has air temp. probe in each evaporator air flow
EP1203916A1 (en) * 2000-11-02 2002-05-08 Kwt Kälte-Wärmetechnik Ag Heating appliance comprising a heat pump
US6644098B2 (en) * 2001-01-18 2003-11-11 Advanced Test Products, Inc. Heated electrode refrigerant detector utilizing one or more control loop
US20090019878A1 (en) * 2005-02-18 2009-01-22 Gupte Neelkanth S Refrigeration circuit with improved liquid/vapour receiver
CN1865812A (en) * 2005-05-19 2006-11-22 量子能技术股份有限公司 Heat pump system and method for heating a fluid
DE102012101041A1 (en) 2012-02-09 2013-08-14 Viessmann Werke Gmbh & Co Kg heat pump device
CN103868299B (en) * 2012-12-13 2016-06-15 美的集团股份有限公司 The fine adjustment control method of electric expansion valve and system

Also Published As

Publication number Publication date
SE8306881L (en) 1984-06-15
DK571883D0 (en) 1983-12-13
JPS59115939A (en) 1984-07-04
FR2537707A1 (en) 1984-06-15
DE3329661A1 (en) 1984-06-14
DK571883A (en) 1984-06-15

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Legal Events

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Effective date: 19850906