CN107631061A - Highly sensitive check-valves - Google Patents
Highly sensitive check-valves Download PDFInfo
- Publication number
- CN107631061A CN107631061A CN201710860688.4A CN201710860688A CN107631061A CN 107631061 A CN107631061 A CN 107631061A CN 201710860688 A CN201710860688 A CN 201710860688A CN 107631061 A CN107631061 A CN 107631061A
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- China
- Prior art keywords
- flap
- small
- valves
- valve seat
- support frame
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- Check Valves (AREA)
Abstract
The present invention relates to a kind of highly sensitive check-valves, including valve body, valve seat, flap, bonnet, flap uses swing type structure；Small pressure difference check-valves is provided with mainly on the inside of valve clack sealing surface, the small pressure difference check-valves is cooperated with small valve seat by small flap and formed, small valve seat is arranged on the through hole port of export made in flap plane, small flap is by support frame, leading truck and guide rod are arranged on small valve seat outlet side, support frame is fixedly mounted on the flap back side, leading truck is fixedly mounted on the through-hole wall in flap plane, small flap center is fixedly mounted in the middle part of guide rod, move and be connected with the centre pilot hole in support frame end face and leading truck centre pilot hole respectively in guide rod both ends, spring is installed between the small flap back side and support frame end face, the spring uses and the concentric cylindrical spring installed of guide rod.Low with starting differential pressure, low voltage difference opens the features such as reliable, Opening pressure loss is small.Suitable for the check-valves of the low voltage difference pipeline such as combustion gas.
Description
Technical field
The invention belongs to valve field, and in particular to a kind of swing check valve.The present invention is applied to the low voltage differences such as combustion gas
The check-valves of pipeline.
Background technology
Swing check valve is commonly used for preventing medium from flowing backwards in medium pipeline, and its structure is mainly by valve body, valve seat, valve
Valve, bonnet composition.During medium forward direction, overcome flap gravity using pressure medium, promote flap to rotarily open；During reverse media,
Reverse media pressure is closed with flap gravity collective effect.Its major defect is：Starting differential pressure is higher, in low pressure such as burning lines
On poor medium pipeline, pressure medium overcomes that flap gravity is more difficult, and the pressure loss is larger.
The content of the invention
The purpose of the present invention is the shortcomings that presence for prior art, there is provided a kind of starting differential pressure is low, and low voltage difference is opened can
Lean on, Opening pressure loses small highly sensitive check-valves.
Technical scheme includes valve body, valve seat, flap, bonnet, and flap uses swing type structure, flap and valve seat
Sealing surface with mutual cooperation；Be provided with small pressure difference check-valves mainly on the inside of valve clack sealing surface, the small pressure difference check-valves by
Small flap cooperates with small valve seat and formed, and small valve seat is arranged on the through hole port of export made in flap plane, and small flap is by propping up
Support, leading truck and guide rod are arranged on small valve seat outlet side, and support frame is fixedly mounted on the flap back side, and leading truck is fixedly mounted
Through-hole wall in flap plane, small flap center are fixedly mounted in the middle part of guide rod, guide rod both ends respectively with support frame
The dynamic mating connection in centre pilot hole and leading truck centre pilot hole in end face, pacifies between the small flap back side and support frame end face
Shock mount, the spring use and the concentric cylindrical spring installed of guide rod.
Preferably, small pressure difference check-valves is symmetrical arranged two in flap center line horizontal direction both sides.
It is an advantage of the invention that setting small pressure difference check-valves on the inside of valve clack sealing surface, small pressure difference check-valves is first during low voltage difference
Open, when pressure difference rise can overcome flap gravity, flap is then turned on, low with starting differential pressure, and low voltage difference unlatching is reliable, opens
The features such as pressure loss is small.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of flap and small pressure difference check-valves in Fig. 1 of the present invention.
Embodiment
Highly sensitive check-valves as shown in Figure 1, including valve body 1, valve seat 2, flap 3, bonnet 4, flap 3 use swing type knot
Structure, the inner chamber of valve body 1 is mounted on by rocking bar, flap 3 has the sealing surface to cooperate with valve seat 2；In the inner side of the sealing surface of flap 3
Small pressure difference check-valves is provided with plane, the small pressure difference check-valves is cooperated with small valve seat by small flap 6 and formed, small valve seat installation
The made port of export of through hole 10 in the plane of flap 3, small flap 6 are arranged on small valve seat by support frame 5, leading truck 8 and guide rod 7
Outlet side, support frame 5 are fixedly mounted on the back side of flap 3, and leading truck 8 is fixedly mounted on the inwall of through hole 10 in the plane of flap 3, small
The center of flap 6 is fixedly mounted on the middle part of guide rod 7, and the both ends of guide rod 7 are respectively with the centre pilot hole in the end face of support frame 5 and leading
It is connected to the centre pilot hole of frame 8 is dynamic, keeps the both ends of guide rod 7 axially to be moved in the pilot hole of support frame 5 and leading truck 8
It is dynamic, spring 9 is installed between the small back side of flap 6 and the end face of support frame 5, the spring 9 uses and the concentric cylinder installed of guide rod 7
Spring, when medium differential pressure is smaller between valve body 1 imports and exports passage, medium thrust can not overcome the gravity of flap 3, and flap 3 is in
Closed mode, but the elastic force of spring 9 can be overcome, open small flap 6, medium circulates out of flap 3 through hole 10, passes through
Selection to the elastic force of spring 10, starting differential pressure value can be set.Leading truck 8 is fitted in the port of export of through hole 10 by support frame 5
On step, small valve seat is arranged on leading truck 8 and exported in side end face.
Small pressure difference check-valves is symmetrical arranged two in the center line horizontal direction both sides of flap 3, the quantity of small pressure difference check-valves
Set according to system media pipeline drift diameter, as pipeline drift diameter increase can increase the setting quantity of small pressure difference check-valves, also may be used
To increase the diameter of through hole 10.
Claims (2)
1. a kind of highly sensitive check-valves, including valve body（1）, valve seat（2）, flap（3）, bonnet（4）, flap（3）Using swing type
Structure, flap（3）With valve seat（2）Sealing surface with mutual cooperation；It is characterized in that in flap（3）In the inner side plane of sealing surface
Provided with small pressure difference check-valves, the small pressure difference check-valves is by small flap（6）Cooperate and form with small valve seat, small valve seat is arranged on valve
Valve（3）Made through hole in plane（10）The port of export, small flap（6）By support frame（5）, leading truck（8）And guide rod（7）Installation
In small valve seat outlet side, support frame（5）It is fixedly mounted on flap（3）The back side, leading truck（8）It is fixedly mounted on flap（3）Plane
Interior through hole（10）Inwall, small flap（6）Center is fixedly mounted on guide rod（7）Middle part, guide rod（7）Both ends respectively with support
Frame（5）Centre pilot hole and leading truck in end face（8）Centre pilot hole is dynamic to be connected, in small flap（6）The back side and support
Frame（5）Spring is installed between end face（9）, the spring（9）Using with guide rod（7）The cylindrical spring installed with one heart, leading truck 8 by
Support frame 5 is fitted on the step of the port of export of through hole 10, and small valve seat is arranged on leading truck 8 and exported in side end face.
2. highly sensitive check-valves according to claim 1, it is characterized in that small pressure difference check-valves is in flap（3）Center line is horizontal
Direction both sides are symmetrical arranged two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710860688.4A CN107631061A (en) | 2017-09-21 | 2017-09-21 | Highly sensitive check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710860688.4A CN107631061A (en) | 2017-09-21 | 2017-09-21 | Highly sensitive check-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107631061A true CN107631061A (en) | 2018-01-26 |
Family
ID=61102115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710860688.4A Withdrawn CN107631061A (en) | 2017-09-21 | 2017-09-21 | Highly sensitive check-valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107631061A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374913A (en) * | 2018-04-10 | 2018-08-07 | 浙江理工大学 | A kind of vibration and noise reducing ball check valve |
| CN110878853A (en) * | 2019-12-02 | 2020-03-13 | 中国航空工业集团公司沈阳飞机设计研究所 | Swing sheet type gravity one-way valve |
| CN113074275A (en) * | 2020-01-03 | 2021-07-06 | 盾安环境技术有限公司 | Electromagnetic valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2789538Y (en) * | 2005-03-01 | 2006-06-21 | 张意 | Full-automatic energy-saving water valve without maintenance |
| CN200961732Y (en) * | 2006-05-09 | 2007-10-17 | 陈建海 | Double petal type check valve |
| ES2258352B1 (en) * | 2002-10-15 | 2008-02-16 | Genebre, S.A. | RETENTION VALVE. |
| CN201723796U (en) * | 2010-05-11 | 2011-01-26 | 上海东方威尔阀门有限公司 | Anechoic check valve |
| CN101982686A (en) * | 2010-11-15 | 2011-03-02 | 何建初 | Nylon check valve and manufacturing method thereof |
| CN203067862U (en) * | 2013-01-22 | 2013-07-17 | 铁岭方众阀门有限公司 | Parent and child valve plate type swing cheek valve |
| CN203413177U (en) * | 2013-07-19 | 2014-01-29 | 浙江华龙巨水科技股份有限公司 | Check valve |
-
2017
- 2017-09-21 CN CN201710860688.4A patent/CN107631061A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2258352B1 (en) * | 2002-10-15 | 2008-02-16 | Genebre, S.A. | RETENTION VALVE. |
| CN2789538Y (en) * | 2005-03-01 | 2006-06-21 | 张意 | Full-automatic energy-saving water valve without maintenance |
| CN200961732Y (en) * | 2006-05-09 | 2007-10-17 | 陈建海 | Double petal type check valve |
| CN201723796U (en) * | 2010-05-11 | 2011-01-26 | 上海东方威尔阀门有限公司 | Anechoic check valve |
| CN101982686A (en) * | 2010-11-15 | 2011-03-02 | 何建初 | Nylon check valve and manufacturing method thereof |
| CN203067862U (en) * | 2013-01-22 | 2013-07-17 | 铁岭方众阀门有限公司 | Parent and child valve plate type swing cheek valve |
| CN203413177U (en) * | 2013-07-19 | 2014-01-29 | 浙江华龙巨水科技股份有限公司 | Check valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374913A (en) * | 2018-04-10 | 2018-08-07 | 浙江理工大学 | A kind of vibration and noise reducing ball check valve |
| CN110878853A (en) * | 2019-12-02 | 2020-03-13 | 中国航空工业集团公司沈阳飞机设计研究所 | Swing sheet type gravity one-way valve |
| CN113074275A (en) * | 2020-01-03 | 2021-07-06 | 盾安环境技术有限公司 | Electromagnetic valve |
| CN113074275B (en) * | 2020-01-03 | 2022-06-17 | 盾安环境技术有限公司 | Electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180126 |
|
| WW01 | Invention patent application withdrawn after publication |