CN201034193Y - Vacuum stop valve employing diaphragm piston components - Google Patents
Vacuum stop valve employing diaphragm piston components Download PDFInfo
- Publication number
- CN201034193Y CN201034193Y CNU2007200374359U CN200720037435U CN201034193Y CN 201034193 Y CN201034193 Y CN 201034193Y CN U2007200374359 U CNU2007200374359 U CN U2007200374359U CN 200720037435 U CN200720037435 U CN 200720037435U CN 201034193 Y CN201034193 Y CN 201034193Y
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- Prior art keywords
- valve
- piston
- section
- housing
- stop valve
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- Expired - Fee Related
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Abstract
The utility model relates to a vacuum stop valve adopting the diaphragm piston component, which is characterized in that an inlet section and an outlet section of the valve are positioned on a valve housing, a cylinder is positioned between the inlet section and the outlet section of the valve, a flexible diaphragm is positioned on the cylinder, a sealed body suspended under the diaphragm is able to be extended into or be deviated from a cavity positioned between the inlet section and the outlet section of the valve, the sealed body blocks the valve communication when extending between the inlet section and the outlet section of the valve, and a vacuum interface and a vacuum breakage interface are positioned on the sealed housing above the cylinder. The utility model has the advantages that the conventional dynamic sealing between the piston and the cylinder wall is replaced by the static sealing, and the disadvantages of easy failure and big resistance existing in the dynamic sealing between the piston and the cylinder wall in the prior art are avoided.
Description
Technical field
The utility model relates to a kind of vaccum stop valve that is applied in the liquid negative pressure transportation equipment, especially a kind of vaccum stop valve that adopts the diaphragm piston assembly.
Background technique
In the present liquid negative pressure transportation equipment, vaccum stop valve adopts a cylinder piston rod usually, drives black box by piston rod, carries out the action of open and close valve.
Because the application pipe network of vaccum stop valve is more and more longer, reach several kilometers even tens kilometers, and there is not oil lubrication in the cylinder, add wild environment, very easily enter dust in the cylinder, thereby cause the piston resistance to motion to strengthen and make defective valve, the reliability of vaccum stop valve is reduced, might cause that finally whole low-pressure drainage system is unreliable, even paralysis.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, the vaccum stop valve that provides a kind of liquid negative pressure transportation simple in structure, that reliability is high, cheap for manufacturing cost to use.
The technological scheme that provides according to model utility, valve inlet section and valve export section are set on valve housing, on the valve housing between valve inlet section and the valve export section, cylindrical shell is set, flexible partition is set on cylindrical shell, hang on seal below the barrier film and can stretch into or leave cavity between valve inlet section and valve export section, the conducting of blocking-up valve when the sealing body stretches between valve inlet section and the valve export section is offered vacuum interface and vacuum breaking interface on the enclosing housing of cylindrical shell top.
Seal is spheroid or cylindrical body.Be provided with the piston that can move up and down in the housing of barrier film top in housing, between the top cover of piston and housing pressure spring arranged, the lower end of piston contacts with the upper surface of barrier film.Outer wall upper and lower end at piston is provided with piston ring, and this piston ring has guiding and seal action concurrently.Groove is offered in upper end at piston, and insert in the groove for one section the bottom of spring, correspondingly also offers groove in housing top cover lower end), insert in the groove for one section at the top of spring.Lower end at barrier film connects pressing plate, utilizes the connection steel wire to be connected with seal in the lower end of pressing plate.
The utility model has replaced the motive sealing of conventional piston and cylinder wall in the static seal mode; Shortcoming such as avoided the motive sealing of conventional piston and cylinder wall easy to failure, resistance is big.The utility model running resistance very little (almost non-resistance), reliability height, cheap for manufacturing cost is very suitable for the negative pressure transportation of liquid.The utility model is simple in structure in addition.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present utility model.
Embodiment
As shown in the figure: valve inlet section 13 and valve export section 11 are set on valve housing 10, on the valve housing 10 between valve inlet section 13 and the valve export section 11 cylindrical shell 17 is set, flexible partition 8 is set on the cylindrical shell 17, the seal 12 that barrier film 8 hangs below can stretch between valve inlet section 13 and the valve export section 11 or from upwards being mentioned by barrier film 8 between them, vacuum interface 4 and vacuum breaking interface 2 were offered in the conducting of blocking-up valve when sealing body 12 stretched between valve inlet section 13 and the valve export section 11 on the enclosing housing 3 of cylindrical shell 17 tops.
As shown in Figure 1: set up spring 1 on housing 3 loam cakes, it depresses piston 6.Barrier film 8 is divided into barrier film epicoele 16 and barrier film cavity of resorption 9 with housing 3 and valve body 10, and housing 3 is provided with vacuum breaking interface 2 and vacuum interface 4 connects vacuum breaking device and controller respectively.Piston 6 is provided with piston ring 5 (each 1 up and down).Pressing plate 15 links up barrier film 8 and piston 6 by bolt 7.Pressing plate 15 and spherical seal 12 be by being connected steel wire 14 and being flexible coupling and being suspended on pressing plate 15 times, makes that spherical seal 12 can free beat, and can come by seal 12 pull-ups that piston 6 move upward sphere, opens valve.When piston 6 moves downward then spherical seal 12 is pushed in the cavity of resorption 9 11 sealings of valve export section, throttle down.
During work, if negative pressure is connected interface 4, the spring force that barrier film 8 promotion pistons 6 overcome spring 1 comes bead 12 pull-ups, opens valve.Open when interface 2 and to make barrier film epicoele 16 be communicated with atmosphere, then piston 6 is depressed by spring 1, bead 12 is pushed barrier film cavity of resorption 9 and under valve export section 11 place's suction functions with valve closing.
Claims (6)
1. vaccum stop valve that adopts the diaphragm piston assembly, it is characterized in that: valve inlet section (13) and valve export section (11) are set on valve housing (10), on the valve housing (10) between valve inlet section (13) and the valve export section (11), cylindrical shell (17) is set, flexible partition (8) is set on cylindrical shell (17), hang on the following seal (12) of barrier film (8) and can stretch into or leave the cavity that is positioned between valve inlet section (13) and the valve export section (11), the conducting of blocking-up valve when sealing body (12) stretches between valve inlet section (13) and the valve export section (11) is offered vacuum interface (4) and vacuum breaking interface (2) on the enclosing housing (3) of cylindrical shell (17) top.
2. the vaccum stop valve of employing diaphragm piston assembly according to claim 1 is characterized in that: seal (12) is spheroid or cylindrical body.
3. the vaccum stop valve of employing diaphragm piston assembly according to claim 1, it is characterized in that: be provided with the piston (6) that can in housing (3), move up and down in the housing (3) of barrier film (8) top, between the top cover of piston (6) and housing (3) pressure spring (1) is arranged, the lower end of piston (6) contacts with the upper surface of barrier film (8).
4. the vaccum stop valve of employing diaphragm piston assembly according to claim 3 is characterized in that: the outer wall upper and lower end at piston (6) is provided with piston ring (5).
5. the vaccum stop valve of employing diaphragm piston assembly according to claim 3, it is characterized in that: offer groove (18) in the upper end of piston (6), insert in the groove (18) for one section the bottom of spring (1), correspondingly also offer groove (180) in housing (3) top cover lower end, insert in the groove (180) for one section at the top of spring (1).
6. the vaccum stop valve of employing diaphragm piston assembly according to claim 1 is characterized in that: the lower end at barrier film (8) connects pressing plate (15), utilizes connection steel wire (14) to be connected with seal (12) in the lower end of pressing plate (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200374359U CN201034193Y (en) | 2007-05-16 | 2007-05-16 | Vacuum stop valve employing diaphragm piston components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200374359U CN201034193Y (en) | 2007-05-16 | 2007-05-16 | Vacuum stop valve employing diaphragm piston components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201034193Y true CN201034193Y (en) | 2008-03-12 |
Family
ID=39195084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200374359U Expired - Fee Related CN201034193Y (en) | 2007-05-16 | 2007-05-16 | Vacuum stop valve employing diaphragm piston components |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201034193Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102598148A (en) * | 2009-08-28 | 2012-07-18 | 希尔莱特有限责任公司 | A nuclear fission reactor, a vented nuclear fission fuel module, methods therefor and a vented nuclear fission fuel module system |
| CN103130324A (en) * | 2011-11-23 | 2013-06-05 | 同济大学 | Vacuum breaker for preventing siphon generation |
| CN103206550A (en) * | 2013-04-03 | 2013-07-17 | 广东美的制冷设备有限公司 | Stop valve for air conditioners |
| US9269462B2 (en) | 2009-08-28 | 2016-02-23 | Terrapower, Llc | Nuclear fission reactor, a vented nuclear fission fuel module, methods therefor and a vented nuclear fission fuel module system |
| CN107855087A (en) * | 2017-12-14 | 2018-03-30 | 无锡市飞天油脂有限公司 | A kind of lubricating grease reactor |
-
2007
- 2007-05-16 CN CNU2007200374359U patent/CN201034193Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102598148A (en) * | 2009-08-28 | 2012-07-18 | 希尔莱特有限责任公司 | A nuclear fission reactor, a vented nuclear fission fuel module, methods therefor and a vented nuclear fission fuel module system |
| CN102598149A (en) * | 2009-08-28 | 2012-07-18 | 希尔莱特有限责任公司 | A nuclear fission reactor, a vented nuclear fission fuel module, methods therefor and a vented nuclear fission fuel module system |
| CN102598147A (en) * | 2009-08-28 | 2012-07-18 | 希尔莱特有限责任公司 | A nuclear fission reactor, a vented nuclear fission fuel module, methods therefor and a vented nuclear fission fuel module system |
| US9269462B2 (en) | 2009-08-28 | 2016-02-23 | Terrapower, Llc | Nuclear fission reactor, a vented nuclear fission fuel module, methods therefor and a vented nuclear fission fuel module system |
| CN103130324A (en) * | 2011-11-23 | 2013-06-05 | 同济大学 | Vacuum breaker for preventing siphon generation |
| CN103130324B (en) * | 2011-11-23 | 2014-08-13 | 同济大学 | Vacuum breaker for preventing siphon generation |
| CN103206550A (en) * | 2013-04-03 | 2013-07-17 | 广东美的制冷设备有限公司 | Stop valve for air conditioners |
| CN107855087A (en) * | 2017-12-14 | 2018-03-30 | 无锡市飞天油脂有限公司 | A kind of lubricating grease reactor |
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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: 20080312 |