GB9724467D0 - Sensing device for screw compressor load - Google Patents

Sensing device for screw compressor load

Info

Publication number
GB9724467D0
GB9724467D0 GBGB9724467.7A GB9724467A GB9724467D0 GB 9724467 D0 GB9724467 D0 GB 9724467D0 GB 9724467 A GB9724467 A GB 9724467A GB 9724467 D0 GB9724467 D0 GB 9724467D0
Authority
GB
United Kingdom
Prior art keywords
sensing device
screw compressor
slide valve
compressor load
field
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.)
Withdrawn
Application number
GBGB9724467.7A
Other versions
GB2331574A9 (en
GB2331574A (en
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.)
BERMINGHAM GETHIN
Original Assignee
BERMINGHAM GETHIN
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
Publication of GB2331574A9 publication Critical patent/GB2331574A9/en
Application filed by BERMINGHAM GETHIN filed Critical BERMINGHAM GETHIN
Priority to GB9724467A priority Critical patent/GB2331574A/en
Publication of GB9724467D0 publication Critical patent/GB9724467D0/en
Publication of GB2331574A publication Critical patent/GB2331574A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
    • F04C28/125—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves with sliding valves controlled by the use of fluid other than the working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F15B15/2861—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using magnetic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/0041—Electrical or magnetic means for measuring valve parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/81—Sensor, e.g. electronic sensor for control or monitoring

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

A sleeve 18 contains one or more sensing elements 19 positioned along the axis of a capacity slide valve of a screw compressor. A piston 2 (or any part connected to it) of the capacity slide valve is fitted with one or more devices which generate a field which can be sensed by the elements 19, to determine the position of the slide valve. The field may be magnetic or electrical or may comprise nuclear particles or photons. There is no mechanical contact between the relatively movable parts of the valve or sensing device.
GB9724467A 1997-11-20 1997-11-20 Sensing device for screw compressor valve Withdrawn GB2331574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9724467A GB2331574A (en) 1997-11-20 1997-11-20 Sensing device for screw compressor valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9724467A GB2331574A (en) 1997-11-20 1997-11-20 Sensing device for screw compressor valve

Publications (3)

Publication Number Publication Date
GB2331574A9 GB2331574A9 (en) 1900-01-01
GB9724467D0 true GB9724467D0 (en) 1998-01-14
GB2331574A GB2331574A (en) 1999-05-26

Family

ID=10822324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9724467A Withdrawn GB2331574A (en) 1997-11-20 1997-11-20 Sensing device for screw compressor valve

Country Status (1)

Country Link
GB (1) GB2331574A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10333400A1 (en) * 2003-07-16 2005-02-10 Bitzer Kühlmaschinenbau Gmbh screw compressors
US9188241B2 (en) 2011-12-13 2015-11-17 Hydril USA Distribution LLC Visual ram position indicator apparatuses and methods
CN102748286A (en) * 2012-04-11 2012-10-24 无锡市制冷设备厂有限责任公司 Screw compressor
CN102619756B (en) * 2012-04-20 2015-01-21 无锡职业技术学院 Twin-screw compressor slide valve position indicator
DE102015116324A1 (en) * 2014-10-08 2016-04-14 Bitzer Kühlmaschinenbau Gmbh screw compressors
CN111255691B (en) * 2020-01-15 2021-07-02 珠海格力电器股份有限公司 Screw compressor system capable of accurately regulating and controlling load, control method and air conditioner

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170353B (en) * 1984-12-29 1989-03-01 Martonair Ltd Fluid-operable device
US4743170A (en) * 1987-09-03 1988-05-10 Fes, Inc. Slide valve position indicator and magnetic coupler
US4957274A (en) * 1989-12-26 1990-09-18 Ingersoll-Rand Company Position sensor for a rotary valve
US5257921A (en) * 1992-05-19 1993-11-02 Fes, Inc. Electronic slide valve position indicator
GB9320238D0 (en) * 1993-10-01 1993-11-17 Btr Plc Valve assembly
US5502380A (en) * 1994-04-28 1996-03-26 Rosemount Inc. Analog weighted binary absolute position encoder including an array of sense resistors each having material responsive to FWX and nonresponsive to flux

Also Published As

Publication number Publication date
GB2331574A9 (en) 1900-01-01
GB2331574A (en) 1999-05-26

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)