CH559315A5 - Rotary compressor for refrigerating plant - has pressure gauge which actuates the protector switch of the drive motor - Google Patents

Rotary compressor for refrigerating plant - has pressure gauge which actuates the protector switch of the drive motor

Info

Publication number
CH559315A5
CH559315A5 CH959472A CH959472A CH559315A5 CH 559315 A5 CH559315 A5 CH 559315A5 CH 959472 A CH959472 A CH 959472A CH 959472 A CH959472 A CH 959472A CH 559315 A5 CH559315 A5 CH 559315A5
Authority
CH
Switzerland
Prior art keywords
pressure gauge
actuates
valve
drive motor
rotary compressor
Prior art date
Application number
CH959472A
Original Assignee
Sulzer Ag
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 Sulzer Ag filed Critical Sulzer Ag
Priority to CH959472A priority Critical patent/CH559315A5/en
Priority to JP48072168A priority patent/JPS4985607A/ja
Publication of CH559315A5 publication Critical patent/CH559315A5/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0292—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-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
    • F25B2500/00—Problems to be solved
    • F25B2500/06—Damage
    • 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
    • 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
    • F25B49/025—Motor control arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

The protection device in the delivery line of the refrigerant has a nonreturn valve. When this valve is closed due to a fault the compressor motor is stopped in order to protect the compressor. The differential pressure gauge is connected upstream and downstream of this valve. This system, in addition to preventing damage to the compressor also prevents loss of refrigerant. In the diagram the pressure gauge(8)senses the pressure difference across the nonreturn valve(7). The pressure difference generated when the return valve closes actuates the motor switch(9)and hence the motor(2)is switched off.
CH959472A 1972-06-27 1972-06-27 Rotary compressor for refrigerating plant - has pressure gauge which actuates the protector switch of the drive motor CH559315A5 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH959472A CH559315A5 (en) 1972-06-27 1972-06-27 Rotary compressor for refrigerating plant - has pressure gauge which actuates the protector switch of the drive motor
JP48072168A JPS4985607A (en) 1972-06-27 1973-06-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH959472A CH559315A5 (en) 1972-06-27 1972-06-27 Rotary compressor for refrigerating plant - has pressure gauge which actuates the protector switch of the drive motor

Publications (1)

Publication Number Publication Date
CH559315A5 true CH559315A5 (en) 1975-02-28

Family

ID=4353594

Family Applications (1)

Application Number Title Priority Date Filing Date
CH959472A CH559315A5 (en) 1972-06-27 1972-06-27 Rotary compressor for refrigerating plant - has pressure gauge which actuates the protector switch of the drive motor

Country Status (2)

Country Link
JP (1) JPS4985607A (en)
CH (1) CH559315A5 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833541U (en) * 1981-08-26 1983-03-04 大成建設株式会社 Reference piles for continuous underground wall construction with shu
JP4791555B2 (en) * 2009-02-18 2011-10-12 株式会社イーエス・ウォーターネット Pop-up sprinkler

Also Published As

Publication number Publication date
JPS4985607A (en) 1974-08-16

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Legal Events

Date Code Title Description
PL Patent ceased