CN2163916Y - Fluid control diaphragm valve - Google Patents
Fluid control diaphragm valve Download PDFInfo
- Publication number
- CN2163916Y CN2163916Y CN 93238646 CN93238646U CN2163916Y CN 2163916 Y CN2163916 Y CN 2163916Y CN 93238646 CN93238646 CN 93238646 CN 93238646 U CN93238646 U CN 93238646U CN 2163916 Y CN2163916 Y CN 2163916Y
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- CN
- China
- Prior art keywords
- body cavity
- flexible sheet
- valve
- flow body
- controlled
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- 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
- 239000012530 fluid Substances 0.000 title claims abstract description 64
- 239000012528 membrane Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model provides a diaphragm valve that opening pressure is low, the excessive flow is big, it advances with controlled fluid to be equipped with control fluid passage on the valve casing, the passageway of effluenting, be provided with the elastic diaphragm who separates the valve casing inner chamber for the control fluid chamber that each other does not communicate with controlled fluid chamber in the valve casing, control fluid passage advances with controlled fluid, the passageway of effluenting has seted up the opening respectively on the chamber wall of control fluid chamber and controlled fluid chamber, set up advancing on controlled fluid chamber wall, it advances to have the constitution between outlet and the elastic diaphragm, the clearance of outlet intercommunication passageway, elastic diaphragm can be with this intercommunication passageway shutoff when warping.
Description
The utility model relates to a kind of membrane valve.
China's utility application discloses a kind of back pressure control valve No. 90225648.3, and this back pressure control valve is provided with control fluid passage and controlled fluid into and out of circulation road on valve casing, is provided with periphery and is fixed in flexible sheet on the valve casing in valve casing.Flexible sheet is divided into mutual disconnected control flows body cavity and controlled flow body cavity with valve shell cavity, control fluid passage and controlled fluid into and out of circulation road respectively the chamber wall of above-mentioned cavity be provided with opening.When the flexible sheet in the valve casing did not produce deformation, the membranous wall of flexible sheet was close to controlled fluid into and out of the opening of circulation road in the controlled flow body cavity, makes into and out of the opening of circulation road not to be connected, and valve is closed condition.When the hydrodynamic pressure in the controlled fluid influent stream passage during greater than the pressure of control flows body cavity inner control fluid, flexible sheet produces protruding distortion to the control flows body cavity, produce the gap between flexible sheet membranous wall and the opening of controlled fluid passage in the controlled flow body cavity, this gap constitutes to be made into and out of the communication passage of the open communication of circulation road in the controlled flow body cavity, thereby make controlled fluid enter out circulation road from the influent stream passage, valve is opening state.Because this kind valve belongs to the Normally closed type valve, only valve could be opened when diaphragm produces above-mentioned distortion, and the runner of its unlatching is also comparatively narrow, therefore when controlled fluid pressure is low, inconvenience then can occur with valve opening and the too little disadvantage of inflow-rate of water turbine.So above-mentioned valve exists certain defective.
The purpose of this utility model provides the membrane valve that a kind of inflow-rate of water turbine is big, be suitable for the low-pressure fluid use.
Membrane valve valve casing of the present utility model is provided with control fluid passage, controlled fluid influent stream passage and controlled fluid and goes out circulation road.Be provided with periphery in the valve casing and be fixed in flexible sheet on the valve shell cavity, flexible sheet is divided into mutual disconnected control flows body cavity and controlled flow body cavity with valve shell cavity.The control fluid passage offers opening on the wall of the chamber of control flows body cavity, controlled fluid influent stream passage and go out circulation road and offer inflow port respectively and go out head piece on the wall of the chamber of controlled flow body cavity.In the utility model, be opened in the inflow port on the wall of controlled flow body cavity chamber and go out head piece and flexible sheet between be provided with the gap especially, this gap constitutes inflow port in the controlled flow body cavity and goes out the communication passage that head piece is communicated with, can be with this communication passage shutoff when flexible sheet produces protruding deformation to the controlled flow body cavity.When using membrane valve of the present utility model, control fluid and controlled fluid enter control flows body cavity and controlled flow body cavity through control fluid passage and controlled fluid influent stream passage respectively, and the both side surface of flexible sheet is pressed.As long as more than or equal to the pressure of control fluid to diaphragm, diaphragm promptly can not produce protruding deformation to the controlled flow body cavity to controlled fluid to the pressure of diaphragm.At this moment, interior inflow port of controlled flow body cavity and the communication passage that goes out between the head piece can be by shutoff, and valve is opening state.Have only pressure when the control fluid greater than the pressure of controlled fluid, flexible sheet produce protruding deformation to the controlled flow body cavity, will be between head piece the complete shutoff of communication passage the time, valve is in closed condition just now.Here, the flexible sheet of distortion can impose the cutting type shutoff to the middle part of above-mentioned communication passage, also can be to the top or the end of communication passage, i.e. and inflow port or go out head piece itself and carry out shutoff.In addition, be positioned on the wall of controlled flow body cavity chamber inflow port with go out head piece and can be arranged on the chamber wall relative with flexible sheet, also can be arranged on the not relative side chamber wall with flexible sheet.When desire with the flexible sheet of distortion to inflow port or when going out head piece itself and carrying out shutoff, then with this inflow port or go out head piece and be arranged on the chamber wall relative to good with flexible sheet.
Membrane valve of the present utility model is compared with aforementioned existing similar valve, because valve was opening state when flexible sheet was in the original state that does not produce deformation, and can be as required and at flexible sheet and into and out of the bigger primary clearance of overflow section is set between the head piece, therefore, even this membrane valve uses in low pressure pipeline, the phenomenon that valve opening inconvenience also can not occur, and can pass through fluid in big flow ground, thus have the advantages that cracking pressure is low, inflow-rate of water turbine is big.
Content of the present utility model further illustrates with the following Examples, but content of the present utility model is not limited only to content related among the embodiment.
Fig. 1 is the structural representation of embodiment's 1 septation valve.
Fig. 2 is the structural representation of embodiment's 2 septation valves.
Fig. 3 is the structural representation of embodiment's 3 septation valves.
Embodiment 1:
As shown in Figure 1, the membrane valve of present embodiment is provided with control fluid passage 2, controlled fluid influent stream passage 3 on valve casing 1 and controlled fluid goes out circulation road 4, is provided with periphery in the valve casing 1 and is fixed in flexible sheet 5 on the valve shell cavity.One side of flexible sheet 5 is close to the opening 6 of control fluid passage on valve shell cavity, and opposite side is then towards controlled flow body cavity 7.Controlled fluid offers on the wall of the chamber of controlled flow body cavity 7 respectively into and out of head piece 8,9 into and out of circulation road, all is arranged on the chamber wall relative with flexible sheet 5 into and out of head piece 8,9.In the present embodiment, the surface that flexible sheet 5 is positioned at controlled flow body cavity one side is the plane, has reentrant part on the chamber wall relative with this surface, promptly places the bottom of this reentrant part into and out of head piece 8,9.Like this, at flexible sheet 5 and into and out of circulation passage between the head piece 8,9.When using the membrane valve of present embodiment, the control fluid arrives opening 6 places by control fluid passage 2, and the flexible sheet of being close to this place is pressed; Controlled fluid then enters in the controlled flow body cavity 7 through controlled fluid influent stream passage 3, and the flexible sheet surface that is positioned at controlled fluid chamber one side is pressed.Controlled fluid to the pressure of diaphragm more than or equal to the control fluid during to the pressure of diaphragm, diaphragm 5 can not produce protruding deformation to controlled flow body cavity 7, also can be in the control flows body cavity by shutoff into and out of the communication passage between the head piece 8,9, the controlled fluid that enters in the controlled flow body cavity can go out circulation road 4 outflow valve casings through controlled fluid, and valve is opening state.Have only when the control fluid the pressure of diaphragm greater than the pressure of controlled fluid diaphragm, force diaphragm produce protruding deformation to the controlled flow body cavity, will be into and out of head piece 8,9 shutoff the time, valve body side is in closed condition.In the present embodiment, the flexible sheet of distortion, is realized the blocking-up into and out of communication passage between the head piece 8,9 carrying out shutoff into and out of head piece 8,9 by directly.In addition, present embodiment takes flexible sheet 5 is close to the form of control fluid access portal 6, so that dwindle the valve volume.From the surface, the control flows body cavity is not set in valve casing 1.Yet in case flexible sheet 5 produces above-mentioned protruding deformation to controlled flow body cavity 7, flexible sheet is promptly removed with the chamber wall at opening 6 places and is close to state, and the gap of Chan Shenging promptly constitutes the control flows body cavity therefrom.The control fluid can pour in this control flows body cavity by control fluid passage 2, flexible sheet 5 is kept or the protruding distortion to controlled flow body cavity 7 of continuation generation.When the needs valve opening, only need to lower controlled fluid pressure or controlled fluid is discharged valve casing, flexible sheet 5 resetted get final product.Certainly, according to actual needs, also can transform, promptly between the chamber wall at flexible sheet 5 and influent stream access portal 6 places, reserve certain interval, form the control flows body cavity that presets said structure.
Embodiment 2:
As shown in Figure 2, the structure of present embodiment septation valve is similar to embodiment 1.Different is, the surface that flexible sheet 10 is positioned at controlled flow body cavity 11 has reentrant part, and the controlled flow body cavity chamber wall relative with this flexible sheet surface then is not provided with reentrant part.The reentrant part of flexible sheet 10 is with forming the gap between the wall of chamber on the other side, and this gap constitutes in controlled flow body cavity 11 makes the communication passage into and out of head piece 12,13 connections of controlled fluid into and out of circulation road.
Embodiment 3:
As shown in Figure 3, the structure of present embodiment septation valve is similar to embodiment 1.Different is, the surface that flexible sheet 14 is positioned at controlled flow body cavity 15 has reentrant part, the reentrant part of flexible sheet 14 is with forming bigger gap between the wall reentrant part of chamber on the other side, make to have the bigger communication passage of overflow section into and out of circulation road into and out of head piece 16,17 in controlled flow body cavity 15.
Claims (4)
1, a kind of fluid control membrane valve, valve casing is provided with the control fluid passage, controlled fluid influent stream passage and controlled fluid go out circulation road, be provided with periphery in the valve casing and be fixed in flexible sheet on the valve shell cavity, flexible sheet is divided into mutual disconnected control flows body cavity and controlled flow body cavity with valve shell cavity, the control fluid passage offers opening on the wall of the chamber of control flows body cavity, controlled fluid influent stream passage and go out circulation road and on the wall of the chamber of controlled flow body cavity, offer inflow port respectively and go out head piece, it is characterized in that being opened in the inflow port on the wall of controlled flow body cavity chamber and go out head piece and flexible sheet between have the gap, this gap constitutes inflow port in the controlled flow body cavity and goes out the communication passage that head piece is communicated with, can be with this communication passage shutoff when flexible sheet produces protruding deformation to the controlled flow body cavity.
2, membrane valve as claimed in claim 1, at least one is arranged on the chamber wall relative with flexible sheet in it is characterized in that the inflow port offered on the wall of controlled flow body cavity chamber and going out head piece.
3, membrane valve as claimed in claim 2 is characterized in that having reentrant part on the chamber wall relative with flexible sheet in the controlled flow body cavity, described inflow port and go out in the head piece at least one and be arranged at this reentrant part bottom.
4,, it is characterized in that the surface that flexible sheet is positioned at the controlled flow body cavity has reentrant part as claim 2 or 3 described membrane valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93238646 CN2163916Y (en) | 1993-05-07 | 1993-05-07 | Fluid control diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93238646 CN2163916Y (en) | 1993-05-07 | 1993-05-07 | Fluid control diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2163916Y true CN2163916Y (en) | 1994-05-04 |
Family
ID=33813330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93238646 Expired - Fee Related CN2163916Y (en) | 1993-05-07 | 1993-05-07 | Fluid control diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2163916Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913649A (en) * | 2012-10-31 | 2013-02-06 | 浙江爱力浦泵业有限公司 | Safety backpressure check valve |
| CN108144150A (en) * | 2017-12-26 | 2018-06-12 | 山东诺信医疗器械有限公司 | Minimally Invasive Surgery integrative control suctions rifle |
| CN114562586A (en) * | 2022-02-28 | 2022-05-31 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Centralized control module for gas switching |
| CN114688296A (en) * | 2020-12-29 | 2022-07-01 | 上海微电子装备（集团）股份有限公司 | Pneumatic control device and system and photoetching equipment |
| CN114754175A (en) * | 2022-03-25 | 2022-07-15 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Gas exchange device |
-
1993
- 1993-05-07 CN CN 93238646 patent/CN2163916Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913649A (en) * | 2012-10-31 | 2013-02-06 | 浙江爱力浦泵业有限公司 | Safety backpressure check valve |
| CN102913649B (en) * | 2012-10-31 | 2014-09-03 | 浙江爱力浦科技股份有限公司 | Safety backpressure check valve |
| CN108144150A (en) * | 2017-12-26 | 2018-06-12 | 山东诺信医疗器械有限公司 | Minimally Invasive Surgery integrative control suctions rifle |
| CN114688296A (en) * | 2020-12-29 | 2022-07-01 | 上海微电子装备（集团）股份有限公司 | Pneumatic control device and system and photoetching equipment |
| CN114562586A (en) * | 2022-02-28 | 2022-05-31 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Centralized control module for gas switching |
| CN114562586B (en) * | 2022-02-28 | 2024-01-26 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Centralized control module for gas switching |
| CN114754175A (en) * | 2022-03-25 | 2022-07-15 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Gas exchange device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |