JPS57137774A - Fluid control valve - Google Patents

Fluid control valve

Info

Publication number
JPS57137774A
JPS57137774A JP2146381A JP2146381A JPS57137774A JP S57137774 A JPS57137774 A JP S57137774A JP 2146381 A JP2146381 A JP 2146381A JP 2146381 A JP2146381 A JP 2146381A JP S57137774 A JPS57137774 A JP S57137774A
Authority
JP
Japan
Prior art keywords
valve body
passage
fluid
flow rate
pressure
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.)
Pending
Application number
JP2146381A
Other languages
Japanese (ja)
Inventor
Koji Sato
Yasufumi Yonemoto
Tetsuhiro Suzuki
Masajirou Azami
Kuniyoshi Kojima
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 Plant Construction Co Ltd
Hitachi Plant Technologies Ltd
Original Assignee
Hitachi Plant Construction Co Ltd
Hitachi Plant Technologies 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 Plant Construction Co Ltd, Hitachi Plant Technologies Ltd filed Critical Hitachi Plant Construction Co Ltd
Priority to JP2146381A priority Critical patent/JPS57137774A/en
Publication of JPS57137774A publication Critical patent/JPS57137774A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/10—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with inflatable member

Abstract

PURPOSE:To facilitate a control over a flow rate of fluid by a method wherein a valve body is formed by a closed body of which volume may be varied. CONSTITUTION:Gas or liquid is supplied in a closed valve body 4 by a pressure supplying pipe 5. The closd valve body 4 is expanded to reduce an area of passage of a passage 2 and then a flow rate of the fluid passing through the passage 2 is reduced. When the pressure is continued to be supplied, the valve body 4 completely closes the passage 2 and a flow of the fluid is completely shut off. Then, either gas or liquid contained in the valve body 4 is discharged out through the pressure supplying pipe 5 and the valve body 4 is shrinked, resulting in that an area of the passage is increased and a flow rate of the fluid is increased. When the pressure supplying part of the pressure supplying pipe 5 is provided with means for keeping a supplying pressure constant so as to keep a condition of the volume of the valve body 4 constant, thereby it is possible to vary the flow rate of the fluid in a stepless manner.
JP2146381A 1981-02-18 1981-02-18 Fluid control valve Pending JPS57137774A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2146381A JPS57137774A (en) 1981-02-18 1981-02-18 Fluid control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2146381A JPS57137774A (en) 1981-02-18 1981-02-18 Fluid control valve

Publications (1)

Publication Number Publication Date
JPS57137774A true JPS57137774A (en) 1982-08-25

Family

ID=12055670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2146381A Pending JPS57137774A (en) 1981-02-18 1981-02-18 Fluid control valve

Country Status (1)

Country Link
JP (1) JPS57137774A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100901969B1 (en) * 2002-10-17 2009-06-10 주식회사 포스코 Apparatus for anti-counterflow of gas cleaning process
CN101910618A (en) * 2007-11-14 2010-12-08 阿尔斯通水电设备法国公司 Energy conversion hydraulic plant and method for controlling such plant
US11648500B2 (en) 2017-05-02 2023-05-16 Husqvarna Ab Valve, use of such valve, separator comprising such valve and method of cleaning a separator body

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100901969B1 (en) * 2002-10-17 2009-06-10 주식회사 포스코 Apparatus for anti-counterflow of gas cleaning process
CN101910618A (en) * 2007-11-14 2010-12-08 阿尔斯通水电设备法国公司 Energy conversion hydraulic plant and method for controlling such plant
JP2011503433A (en) * 2007-11-14 2011-01-27 アルストム イドロ フランス Energy conversion hydropower plant and method for controlling the plant
US8672617B2 (en) 2007-11-14 2014-03-18 Alstom Renewable Technologies Energy conversion hydraulic plant and method for controlling such plant
US11648500B2 (en) 2017-05-02 2023-05-16 Husqvarna Ab Valve, use of such valve, separator comprising such valve and method of cleaning a separator body

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