CN101220878B - Shuttle type micro-resistance check valve - Google Patents
Shuttle type micro-resistance check valve Download PDFInfo
- Publication number
- CN101220878B CN101220878B CN2007100507957A CN200710050795A CN101220878B CN 101220878 B CN101220878 B CN 101220878B CN 2007100507957 A CN2007100507957 A CN 2007100507957A CN 200710050795 A CN200710050795 A CN 200710050795A CN 101220878 B CN101220878 B CN 101220878B
- Authority
- CN
- China
- Prior art keywords
- valve
- safety cover
- valve body
- flap
- check valve
- 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.)
- Expired - Fee Related
Links
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000153246 Anteros Species 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
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
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention provides a shuttle-typed slight resistance check valve, which solves the problem that the existing check valve is difficult to be opened owning to low pressure difference. The shuttle-typed slight resistance check valve is characterized in that one port of a valve body (1) is provided with a valve seat (18); the internal wall of the valve body is connected with a front supporting (17); the internal wall of the other port of the valve body is connected with a connecting ring (5); a valve sleeve (15) and the connecting ring (5) are connected into a whole; the internal hole of the valve sleeve (15) is connected with a first liner (8); one side of a valve flap (10) is connected with a valve front shaft (4) and the other side thereof is connected with a valve rear shaft (11); the valve front shaft (4) is movably matched with a second liner (2) in the internal hole of the front supporting (17); the valve rear shaft is movably matched with the first linear (8) and connected with a spring (13).
Description
Technical field:
The present invention is relevant with the low-pressure opens check valve.
Background technique:
Existing safety check is because part is thick and heavy, and flap adopts single support structure, easily produces moment of torsion when endwisely slipping, and frictional force is big, and low pressure difference is difficult to open and close.Valve shaft and spring corrosion-vulnerable increase the keying resistance and reduce working life, and the assembly precision of valve is poor, the poor sealing performance of valve.
Summary of the invention:
It is little to the purpose of this invention is to provide a kind of keying resistance, and sealing is reliable, but sensing flap enable position, long service life, the shuttle type micro-resistance check valve that assembly precision is high.
The present invention is achieved in that
Shuttle type micro-resistance check valve of the present invention, in one port of valve body 1 valve seat 18 is arranged, the inwall of valve body is connected with preceding supporting 17, and the another port inwall of valve body is connected with coupling ring 5, and valve pocket 15 connects as one with coupling ring 5, valve pocket 15 endoporus are connected with first lining 8, flap 10 1 sides are connected with valve front axle 4, and another is distolateral to be connected with valve rear axle 11, and second lining 2 of valve front axle 4 and preceding supporting 17 endoporus movingly, the valve rear axle and first lining 8 movingly, the valve rear axle is connected with spring 13.
Valve pocket 15 rear end endoporus are connected with safety cover 6, and first lining 8 is positioned at the safety cover front end, and the rear end of safety cover 6 is connected with bonnet 9, and screw 12 passes bonnet and is connected with the interior spring 13 of safety cover rear end and safety cover.
Preceding supporting 17, coupling ring 5 are connected with valve body 1 inner thread, and safety cover 6 is threaded with valve pocket 15, valve body, and first and second lining, valve seat, flap, the forward and backward axle of valve, coupling ring has same axis.
The front end of valve front axle 4 is connected with sensor or rigidity voussoir 21, valve body 1) hole 16 in sensor or stroke indicating arm 19 are arranged.
Axial stroke in the hole 16 of the end face of flap 4 and valve body 1 refers to that bar is relative.
Between the endoporus of valve pocket 15 and first lining 8 safety cover 6 is arranged, spring 13 is arranged in the safety cover between shaft rear end behind the valve and safety cover interior edge face.
Former and later two supporting points are arranged valve shaft of the present invention and than the major axis cover, the valve rear axle is the hollow shaft of increasing, guarantees the coaxality of flap, valve antero posterior axis, valve body shaft axis, and the resistance of reducing friction can be opened under low pressure difference.Flap, valve shaft, valve pocket are the light material of shell, and weight reduction guarantees rigidity, and realization coincide reliable sealing with valve seat planes.
The built-in hollow core valve rear axle of anticorrosion cover, spring make it not be subjected to the medium etch, and there is seal arrangement at anticorrosion cover two end part.Guarantee safe and reliable.
Establish threaded aperture in the end of valve front axle, so that in sensing elements such as electromagnetism, photoelectricity, ultrasonic wave are set, or mechanical rigid, non-rigid support are set.Outside valve body, to transmit the signal of flap present position.Also can on valve body, establish the hole, transmit the direct information of flap present position with the mechanical rigid element.
Description of drawings:
Fig. 1 is a structural drawing of the present invention.
Fig. 2 is the sensing arrangement figure between valve front axle and the valve body.
Fig. 3 is the sensing arrangement figure between flap and the valve body.
Embodiment:
The entry end of valve body 1 is threaded with preceding supporting 17, the lining 2 in the preceding supporting and valve front axle 4 movingly, lining 2 has locating stud 3.The axial length of lining 2 is 10-100mm.The interior edge face of entry end is a valve seat 18.The outlet end of valve body 1 is threaded with coupling ring 5.Valve pocket 15 links into an integrated entity with coupling ring 5, and safety cover 6 is connected with valve pocket 15 inner hole threads, and spring 13 is arranged in the safety cover 6, and valve rear axle 11 and safety cover 6 interior linings 8 are connected with spring 13 movingly.The forward and backward axle of valve is connected in the both sides of flap 10 for external diameter is respectively the hollow shaft of 10-80mm and 10-300mm.Flap 10, the wall thickness of valve pocket 15 are 10mm.Bonnet 9 is threaded with safety cover 6, and screw 12 passes bonnet and is connected with spring 13.There is seal arrangement at anticorrosion cover two end part, guarantee that spring 13 is not subjected to dielectric corrosion.Through hole 20 is arranged on the valve pocket 15.Valve front axle 4 front ends porose 14 are connected with wedge 21, and the stroke indicating arm 19 in the hole 16 of the inclined-plane of wedge 21 and valve body 1 is connected.This example is fit to the torch gas non-return system of petroleum chemical enterprise.In the DN:350-1200mm system, the PN:60-300mm water column is opened, PN:100-300mm water column switch.
Claims (3)
1. shuttle type micro-resistance check valve; it is characterized in that in the port of valve body (1) valve seat (18) being arranged; the inwall of the described port of valve body is connected with preceding supporting (17); the another port inwall of valve body is connected with coupling ring (5); valve pocket (15) connects as one with coupling ring (5); flap (10) one sides are connected with valve front axle (4); another is distolateral to be connected with valve rear axle (11); second lining (2) of valve front axle (4) and preceding supporting (17) endoporus movingly; valve pocket (15) rear end endoporus is connected with safety cover (6); first lining (8) is positioned at the safety cover front end; spring (13) is arranged in the safety cover between shaft rear end behind the valve and safety cover interior edge face; there is seal arrangement at the safety cover two end part; the rear end of safety cover (6) is connected with bonnet (9); screw (12) passes bonnet and is connected with the interior spring (13) of safety cover rear end and safety cover; preceding supporting (17); coupling ring (5) is connected with valve body (1) inner thread; safety cover (6) is threaded with valve pocket (15); valve body; first; two linings; valve seat; flap is before the valve; rear axle, coupling ring has same axis.
2. shuttle type micro-resistance check valve according to claim 1 is characterized in that the front end of valve front axle (4) is connected with sensor or rigidity voussoir (21), has sensor or stroke indicating arm (19) in the hole (16) of valve body (1).
3. shuttle type micro-resistance check valve according to claim 1, the end face that it is characterized in that flap (10) refers to that with axial stroke in the hole (16) of valve body (1) bar is relative.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100507957A CN101220878B (en) | 2007-12-14 | 2007-12-14 | Shuttle type micro-resistance check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100507957A CN101220878B (en) | 2007-12-14 | 2007-12-14 | Shuttle type micro-resistance check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101220878A CN101220878A (en) | 2008-07-16 |
| CN101220878B true CN101220878B (en) | 2010-12-22 |
Family
ID=39630884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100507957A Expired - Fee Related CN101220878B (en) | 2007-12-14 | 2007-12-14 | Shuttle type micro-resistance check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101220878B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9506576B2 (en) * | 2009-08-17 | 2016-11-29 | Titan Flow Control, Inc. | Check valve apparatuses and methods |
| CN101776168B (en) * | 2010-03-12 | 2011-11-23 | 曾祥炜 | Shuttle-type high-temperature and high-pressure welding check valve |
| CN104455585A (en) * | 2014-12-04 | 2015-03-25 | 圣博莱阀门有限公司 | Ultralow-temperature axial-flow type check valve |
| CN106641349B (en) * | 2016-11-29 | 2019-06-18 | 福建工程学院 | A streamlined fluid one-way flow device |
| CN108468840B (en) * | 2018-05-21 | 2024-06-21 | 上海瑞晨环保科技股份有限公司 | Micro-resistance slow-closing underwater bottom valve |
| US11313482B2 (en) * | 2019-11-14 | 2022-04-26 | Entegris, Inc. | Welded check valve |
| CN110985748B (en) * | 2019-12-12 | 2022-08-05 | 上海核工程研究设计院有限公司 | Check valve and check valve position determination method |
| CN113531402B (en) * | 2021-08-11 | 2023-08-15 | 三门核电有限公司 | Full-automatic high-sensitivity pipe network leakage monitoring sensor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2418326Y (en) * | 2000-04-14 | 2001-02-07 | 周宏远 | Spiral-shuttle type non-return valve |
| CN2434498Y (en) * | 2000-07-08 | 2001-06-13 | 王其文 | Single flange template non-return device |
| CN200946700Y (en) * | 2006-09-15 | 2007-09-12 | 四川固特阀门制造有限公司 | Run-through type check valve |
-
2007
- 2007-12-14 CN CN2007100507957A patent/CN101220878B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2418326Y (en) * | 2000-04-14 | 2001-02-07 | 周宏远 | Spiral-shuttle type non-return valve |
| CN2434498Y (en) * | 2000-07-08 | 2001-06-13 | 王其文 | Single flange template non-return device |
| CN200946700Y (en) * | 2006-09-15 | 2007-09-12 | 四川固特阀门制造有限公司 | Run-through type check valve |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-36889A 2005.02.10 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101220878A (en) | 2008-07-16 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170330 Address after: And the center of Sichuan Province in 610041 Haitang No. 2039 Chengdu Tianfu Tianfu Avenue South (Tianfu hit off 16 floor No. 1609) Patentee after: Sichuan red earth Tianfu Passive Control Technology Co. Ltd. Address before: 610041 Chengdu South Road, Sichuan, No. four, No. 11 Patentee before: Zeng Xiangwei |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20191214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |