TW200722946A - Fluid control unit, pressure control valve, and pressure control method - Google Patents

Fluid control unit, pressure control valve, and pressure control method

Info

Publication number
TW200722946A
TW200722946A TW095142035A TW95142035A TW200722946A TW 200722946 A TW200722946 A TW 200722946A TW 095142035 A TW095142035 A TW 095142035A TW 95142035 A TW95142035 A TW 95142035A TW 200722946 A TW200722946 A TW 200722946A
Authority
TW
Taiwan
Prior art keywords
valve
fluid
control
pressure
control valve
Prior art date
Application number
TW095142035A
Other languages
Chinese (zh)
Inventor
Toshikatsu Meguro
Yasuhiro Chiba
Yoichi Kanno
Original Assignee
Ham Let Motoyama Japan 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 Ham Let Motoyama Japan Ltd filed Critical Ham Let Motoyama Japan Ltd
Publication of TW200722946A publication Critical patent/TW200722946A/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
    • G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
    • G05D16/2033—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means the plurality of throttling means being arranged in series

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Fluid Pressure (AREA)
  • Lift Valve (AREA)
  • Fluid-Driven Valves (AREA)
  • Details Of Valves (AREA)

Abstract

When the pressure of a high-pressure fluid is rapidly reduced with a control valve under high-flow rate conditions, the temperature of the fluid per se is rapidly lowered by the expansion of the gas, possibly resulting in lowering of the temperature of the downstream part of the control valve to a value below the freezing point. When water is contained in the gas, the water is frozen on the surface of a flow path in the spacing of valve seat of valve hole as a vena contracta/valve body/valve seat and, consequently, the movement of the valve body is hindered, often resulting in troubles of fluid control. This unfavorable phenomenon leads to, for example, pulsation of gas, abnormal vibration of the control valve, erosion of the valve seat, and noise, making it difficult to maintain normal operation of an air feed system. It is important that, in control equipment for fluid pressure, fluid control be possible even when the vena contracta near the valve seat is frozen. There is provided a fluid control unit characterized in that an isolation valve (2), a control valve (3), and a pressure sensor (4) are provided in an integral form along the fluid path of the control object and the isolation valve (2) and the control valve (3) are automatically controlled based on the detected pressure signal of the pressure sensor (4).
TW095142035A 2005-11-14 2006-11-14 Fluid control unit, pressure control valve, and pressure control method TW200722946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005328878A JP2007133829A (en) 2005-11-14 2005-11-14 Fluid control apparatus, pressure regulating valve and control method

Publications (1)

Publication Number Publication Date
TW200722946A true TW200722946A (en) 2007-06-16

Family

ID=38023361

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095142035A TW200722946A (en) 2005-11-14 2006-11-14 Fluid control unit, pressure control valve, and pressure control method

Country Status (3)

Country Link
JP (1) JP2007133829A (en)
TW (1) TW200722946A (en)
WO (1) WO2007055370A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI494729B (en) * 2009-02-12 2015-08-01 Kurashiki Boseki Kk Fluid control method and fluid control device
TWI552833B (en) * 2015-11-12 2016-10-11 Wen-Feng Wang Automatic Control System of Pressure Vise
CN110578806A (en) * 2019-09-30 2019-12-17 上海龙猛机械有限公司 Shock attenuation back pressure valve
TWI711810B (en) * 2018-07-09 2020-12-01 日商富士金股份有限公司 Fluid control equipment
TWI759390B (en) * 2017-01-05 2022-04-01 美商伊路米納有限公司 Fluidic system and a method of operating the same

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US8307843B2 (en) * 2009-01-21 2012-11-13 Tescom Corporation Temperature-controlled pressure regulators
JP5747702B2 (en) * 2011-07-12 2015-07-15 富士通株式会社 Adsorption heat pump and information processing system
JP5999194B2 (en) 2012-11-28 2016-09-28 株式会社島津製作所 Supercritical fluid processing equipment
RU2620733C1 (en) * 2016-08-04 2017-05-29 Закрытое акционерное общество "ЮГГАЗСЕРВИС" Automatic emergency closing of the crane of the gate of the gas pipe
CN106763811A (en) * 2016-12-29 2017-05-31 珠海市奥吉赛科技有限公司 A kind of gas valve device with flow monitoring
CN111255933A (en) * 2017-05-09 2020-06-09 浙江三花汽车零部件有限公司 Electronic expansion valve, thermal management assembly, cooling system and electronic expansion valve manufacturing method
WO2018205746A1 (en) 2017-05-09 2018-11-15 浙江三花汽车零部件有限公司 Electronic expansion valve, thermal management assembly, cooling system, and method for manufacturing electronic expansion valve
CN109513531B (en) * 2018-12-29 2023-09-12 重庆博奥镁铝金属制造有限公司 Paint nozzle
CN114441162A (en) * 2020-11-04 2022-05-06 上海汽车集团股份有限公司 Performance calibration equipment of pressure relief valve
KR102412626B1 (en) * 2021-12-29 2022-06-23 에스케이에코플랜트(주) Balance of plant module for solid oxide electrolysis cell system and solid oxide electrolysis cell system

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Publication number Priority date Publication date Assignee Title
JPH02288905A (en) * 1989-02-16 1990-11-28 Fuji Electric Co Ltd Tester for feedback controller
JPH0370612U (en) * 1989-11-14 1991-07-16
JPH0514741U (en) * 1990-12-27 1993-02-26 三菱重工業株式会社 Multi-stage pressure reducing flow control valve
JP2731080B2 (en) * 1991-05-31 1998-03-25 株式会社本山製作所 Gas control device
JPH06180612A (en) * 1992-12-11 1994-06-28 Tokico Ltd Interrupting device
JP3182717B2 (en) * 1996-06-06 2001-07-03 株式会社山武 Control valve abnormality detection method and detection device
JP3580645B2 (en) * 1996-08-12 2004-10-27 忠弘 大見 Pressure type flow controller
JPH11101352A (en) * 1997-07-31 1999-04-13 Motoyama Seisakusho:Kk Flow control valve
JP3932389B2 (en) * 1998-01-19 2007-06-20 Ｓｍｃ株式会社 Mass flow controller self-diagnosis method
JP4262054B2 (en) * 2003-11-07 2009-05-13 大阪瓦斯株式会社 Pressure regulator operation test method and apparatus, and standby pressure setting method
JP4378621B2 (en) * 2004-01-08 2009-12-09 Ｓｍｃ株式会社 Regulator with built-in filter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI494729B (en) * 2009-02-12 2015-08-01 Kurashiki Boseki Kk Fluid control method and fluid control device
TWI552833B (en) * 2015-11-12 2016-10-11 Wen-Feng Wang Automatic Control System of Pressure Vise
TWI759390B (en) * 2017-01-05 2022-04-01 美商伊路米納有限公司 Fluidic system and a method of operating the same
TWI711810B (en) * 2018-07-09 2020-12-01 日商富士金股份有限公司 Fluid control equipment
CN110578806A (en) * 2019-09-30 2019-12-17 上海龙猛机械有限公司 Shock attenuation back pressure valve
CN110578806B (en) * 2019-09-30 2024-04-05 上海龙猛机械有限公司 Damping back pressure valve

Also Published As

Publication number Publication date
WO2007055370A1 (en) 2007-05-18
JP2007133829A (en) 2007-05-31

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