CN201202839Y - Straight-through type double diaphragm valve - Google Patents
Straight-through type double diaphragm valve Download PDFInfo
- Publication number
- CN201202839Y CN201202839Y CNU2008200123020U CN200820012302U CN201202839Y CN 201202839 Y CN201202839 Y CN 201202839Y CN U2008200123020 U CNU2008200123020 U CN U2008200123020U CN 200820012302 U CN200820012302 U CN 200820012302U CN 201202839 Y CN201202839 Y CN 201202839Y
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- China
- Prior art keywords
- valve
- diaphragm
- straight
- valve body
- seat
- 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
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- 239000012528 membrane Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010079 rubber tapping Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
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Abstract
A straight-through type double diaphragm valve belongs to the technical field of design and manufacture of straight-through type diaphragm valves. Consists of a valve body, a valve cover and a diaphragm. The upper and lower surfaces of the valve body are respectively provided with an upper valve cover and a lower valve cover. An upper valve seat and a lower valve seat are respectively arranged in the valve body. An upper diaphragm and a lower diaphragm are respectively arranged between the upper valve seat and the lower valve seat and between the upper valve cover and the lower valve cover. The use of the device is to install the device on a pressure pipeline. The straight-through type double diaphragm valve which adopts double diaphragm sheets and double valve seats on the same valve body to improve the flow through path can meet the requirement of controlling a large flow pipeline. The problem of current product because only one diaphragm valve can not satisfy large-traffic pipeline control is solved.
Description
Technical field
The utility model belongs to the design and the manufacturing technology field of straight way diaphragm valve.
Background technique
The straight way diaphragm valve that is used at present on the fluid circuit all adopts to pressurising in the diaphragm cavity, make top tight sealing close port between diaphragm and the valve seat, or pressure release makes the sealing station of lifting off a seat under the effect of diaphragm sheet hydrodynamic pressure in fluid circuit in the diaphragm cavity, open valve port, but because diaphragm is the rubber material, the use compression area can not be excessive under this pressure environment, so the valve seat size that it is sealed is restricted, so the design of the import and export size of valve is also limited, must select a plurality of diaphram valve parallel connections for use in the diaphram valve process pipeline of heavy caliber flow slightly at needs like this, so the control point is many, and is cumbersome.Therefore say that it is not very desirable that existing membrane valve uses on the heavy caliber pipeline.
Summary of the invention
The purpose of this utility model provides the two membrane valves of a kind of straight-through type that adopts two diaphragms, bivalve seat to improve the circulation latus rectum on same valve body, satisfy the needs than the control of large flow pipe road.
The structure of model utility is as shown in drawings: be made of valve body, valve gap, diaphragm, at the preceding right side of face of valve body one pressure source pressure tappings arranged.Above and below at valve body has bonnet and bottom flange respectively.In upper and lower valve gap upper end one pressurising, pressure relief opening are arranged all.Upper valve base and lower valve base are arranged respectively in valve body.Diaphragm and lower diaphragm plate sheet on one arranged respectively between upper and lower valve seat and the upper and lower valve gap.In the film chamber that between diaphragm and valve gap, forms a secondary spring is arranged respectively.
Method of work of the present utility model: the two membrane valves of straight-through type are installed on the pressure piping, with the pressure source pressure tappings get the pressure of this pipeline or get extraneous other greater than pressure source of pipeline by upper and lower valve gap pressurising, pressure relief opening to the pressurising of film chamber.Upper and lower diaphragm overcomes loine pressure and holds out against lower valve base under the effect of pressure and secondary spring power, the barrier film valve port is closed; The film cavity pressure is laid down, thereby hydrodynamic pressure can overcome secondary spring power in the film chamber and diaphragm pushed away valve seat valve port is opened in the pipeline.
Description of drawings
Fig. 1 is the utility model structural representation
1-valve body 2-pressure source pressure tappings 3-bonnet 4-bottom flange
Fig. 2 is the utility model section of structure
3-bonnet 4-bottom flange 5-pressurising, pressure relief opening 6-upper valve base 7-lower valve base 8-go up diaphragm 9-lower diaphragm plate sheet 10-film chamber 11-secondary spring
Embodiment
Structure of the present utility model is as shown in drawings: be made of valve body, valve gap, diaphragm, at the preceding right side of face of valve body 1 a pressure source pressure tappings 2 arranged.In the above and below of valve body bonnet 3 and bottom flange 4 are arranged respectively.In upper and lower valve gap upper end one pressurising, pressure relief opening 5 are arranged all.Upper valve base 6 and lower valve base 7 are arranged respectively in valve body.Diaphragm 8 and lower diaphragm plate sheet 9 on one arranged respectively between upper and lower valve seat and the upper and lower valve gap.One secondary spring 11 is respectively arranged in the film chamber 10 that forms between diaphragm and valve gap.
Claims (1)
1, the two membrane valves of straight-through type, constitute by valve body, valve gap, diaphragm, it is characterized in that bonnet (3) and bottom flange (4) are arranged respectively in the above and below of valve body (1), in upper and lower valve gap upper end one pressurising, pressure relief opening (5) are arranged all, upper valve base (6) and lower valve base (7) are arranged respectively in valve body, diaphragm on one (8) and lower diaphragm plate sheet (9) are arranged respectively between upper and lower valve seat and the upper and lower valve gap, in the film chamber (10) that between diaphragm and valve gap, forms a secondary spring (11) is arranged respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200123020U CN201202839Y (en) | 2008-04-23 | 2008-04-23 | Straight-through type double diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200123020U CN201202839Y (en) | 2008-04-23 | 2008-04-23 | Straight-through type double diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201202839Y true CN201202839Y (en) | 2009-03-04 |
Family
ID=40425150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200123020U Expired - Fee Related CN201202839Y (en) | 2008-04-23 | 2008-04-23 | Straight-through type double diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201202839Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359619A (en) * | 2011-09-29 | 2012-02-22 | 福瓦特阀门制造集团有限公司 | Straight flow diaphragm biological valve |
| CN103542104A (en) * | 2009-08-19 | 2014-01-29 | 株式会社小金井 | Diaphragm valve |
| CN106195322A (en) * | 2015-05-08 | 2016-12-07 | 江苏开能华宇环保设备有限公司 | A kind of V-type two-sided diaphragm valve |
| CN108916417A (en) * | 2018-08-09 | 2018-11-30 | 应登文 | A kind of overall diameter through type mud valve |
-
2008
- 2008-04-23 CN CNU2008200123020U patent/CN201202839Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542104A (en) * | 2009-08-19 | 2014-01-29 | 株式会社小金井 | Diaphragm valve |
| CN103542104B (en) * | 2009-08-19 | 2015-12-09 | 株式会社小金井 | Membrane valve |
| CN102359619A (en) * | 2011-09-29 | 2012-02-22 | 福瓦特阀门制造集团有限公司 | Straight flow diaphragm biological valve |
| CN106195322A (en) * | 2015-05-08 | 2016-12-07 | 江苏开能华宇环保设备有限公司 | A kind of V-type two-sided diaphragm valve |
| CN108916417A (en) * | 2018-08-09 | 2018-11-30 | 应登文 | A kind of overall diameter through type mud valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20130423 |