WO2010095897A3 - Check valve for water hammering prevention - Google Patents

Check valve for water hammering prevention Download PDF

Info

Publication number
WO2010095897A3
WO2010095897A3 PCT/KR2010/001062 KR2010001062W WO2010095897A3 WO 2010095897 A3 WO2010095897 A3 WO 2010095897A3 KR 2010001062 W KR2010001062 W KR 2010001062W WO 2010095897 A3 WO2010095897 A3 WO 2010095897A3
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
housing
check valve
valve
outlet
Prior art date
Application number
PCT/KR2010/001062
Other languages
French (fr)
Korean (ko)
Other versions
WO2010095897A2 (en
Inventor
정명길
정성권
Original Assignee
셔틀밸브(주)
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 셔틀밸브(주) filed Critical 셔틀밸브(주)
Publication of WO2010095897A2 publication Critical patent/WO2010095897A2/en
Publication of WO2010095897A3 publication Critical patent/WO2010095897A3/en

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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
    • F16K15/023—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open the valve member consisting only of a predominantly disc-shaped flat element
    • 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
    • F16K15/00—Check valves
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
    • F16K15/028—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open the valve member consisting only of a predominantly disc-shaped flat element
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
    • F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Details Of Valves (AREA)

Abstract

The present invention relates to a check valve for water hammering prevention, more specifically to a check valve comprising: a first housing with an inlet and an outlet to let fluid in and out; a second housing of a hollow pipe shape with one end connected to the outlet and the other end in which a protrusion is formed; and an on-off valve composed of a body installed inside the second housing, a disc provided on one side of the body to open or shut the outlet, and a discharge hole formed on the edge of the disc, through which a fluid passes. In the check valve, an insert damper is extended from one side of the body, a first damping groove is formed on the inner edge of the first housing so that the insert damper is inserted and is buffered with filled fluid, a second damping groove is formed on the second housing so that the other side of the body is inserted and is buffered with filled fluid. Accordingly, the fluid filled in the first and second damping grooves serves as a damper to reduce impact by the on-off valve even when the on-off valve is rapidly opened or shut due to abrupt change in the flow of fluid, thus remarkably reducing water hammering.
PCT/KR2010/001062 2009-02-23 2010-02-22 Check valve for water hammering prevention WO2010095897A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090014619A KR100926402B1 (en) 2009-02-23 2009-02-23 Check valve with decreased water hammering
KR10-2009-0014619 2009-02-23

Publications (2)

Publication Number Publication Date
WO2010095897A2 WO2010095897A2 (en) 2010-08-26
WO2010095897A3 true WO2010095897A3 (en) 2010-11-25

Family

ID=41561605

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/001062 WO2010095897A2 (en) 2009-02-23 2010-02-22 Check valve for water hammering prevention

Country Status (2)

Country Link
KR (1) KR100926402B1 (en)
WO (1) WO2010095897A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8607818B2 (en) 2010-05-20 2013-12-17 Dresser, Inc. Pressure relief valve
CN202349290U (en) * 2011-11-30 2012-07-25 丹佛斯（天津）有限公司 One-way valve
CN106766033A (en) * 2016-12-05 2017-05-31 珠海格力电器股份有限公司 Anti-return pipeline, thermantidote and humidification system
CN109707874A (en) * 2019-02-12 2019-05-03 佛山市锦泽致盛智能科技有限公司 A kind of highly-safe message bathtub
KR102181224B1 (en) * 2019-02-22 2020-11-24 주식회사 서우이엔지 Anti - water hammering valve for electronics pressure switch
KR102201975B1 (en) * 2019-07-25 2021-01-12 우성밸브 주식회사 Shock-absorbing check valve
KR102464500B1 (en) * 2021-12-09 2022-11-07 정성권 Check valve to protect against water hammering

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60227082A (en) * 1984-04-21 1985-11-12 Saburo Aonuma Cushion-type pressure control valve
JPH11344274A (en) * 1998-05-29 1999-12-14 Goh Shoji Co Inc Check valve
JP2005249154A (en) * 2004-03-08 2005-09-15 Tgk Co Ltd Non-return valve
JP2006009880A (en) * 2004-06-24 2006-01-12 Keihin Corp Check valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4734623B2 (en) 2003-09-24 2011-07-27 株式会社ヴァレオジャパン Variable capacity clutchless compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60227082A (en) * 1984-04-21 1985-11-12 Saburo Aonuma Cushion-type pressure control valve
JPH11344274A (en) * 1998-05-29 1999-12-14 Goh Shoji Co Inc Check valve
JP2005249154A (en) * 2004-03-08 2005-09-15 Tgk Co Ltd Non-return valve
JP2006009880A (en) * 2004-06-24 2006-01-12 Keihin Corp Check valve

Also Published As

Publication number Publication date
KR100926402B1 (en) 2009-11-10
WO2010095897A2 (en) 2010-08-26

Similar Documents

Publication Publication Date Title
WO2010095897A3 (en) Check valve for water hammering prevention
WO2009101424A3 (en) Flow stop valve
WO2008155655A3 (en) Junction bleed
MY159693A (en) Drill pipe
WO2008122804A3 (en) Suspension systems
WO2009094410A3 (en) Formation tester with low flowline volume
WO2008008465A3 (en) Valve manifold assembly
WO2007094905A3 (en) Needleless access port valves
TW200613675A (en) Anti-cavitation valve assembly
WO2007002646A3 (en) Check valve
WO2008144044A3 (en) Electronically controlled valve and systems containing same
WO2009002771A3 (en) Slit valve door
WO2008090657A1 (en) Flow control device
WO2011054780A3 (en) Closable throughflow member
WO2009107999A3 (en) Automatic pressure reducing valve
WO2007098431A3 (en) Thermostatic expansion valve with check valve
WO2012097010A3 (en) Subsea retrievable insert with choke valve and non return valve
MX357047B (en) Balanced port sense profile for improved capacity performance.
HK1140535A1 (en) A multiple valve assembly for reducing water loss from a leak
WO2006102510A3 (en) Positive crankcase ventilation valve assembly with a vacuum pulsation dampener
WO2009019103A3 (en) Valve assembly comprising a torque limiter
MX2007011779A (en) Valve for fluids.
CN203202313U (en) One-way valve with water attack prevention function
WO2010005950A3 (en) Fire fighting nozzle
WO2008120349A1 (en) Check valve

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10743972

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 05/12/1205A)

122 Ep: pct application non-entry in european phase

Ref document number: 10743972

Country of ref document: EP

Kind code of ref document: A2