CN201236952Y - Liquid-gas pressure break valve - Google Patents
Liquid-gas pressure break valve Download PDFInfo
- Publication number
- CN201236952Y CN201236952Y CNU2008200550942U CN200820055094U CN201236952Y CN 201236952 Y CN201236952 Y CN 201236952Y CN U2008200550942 U CNU2008200550942 U CN U2008200550942U CN 200820055094 U CN200820055094 U CN 200820055094U CN 201236952 Y CN201236952 Y CN 201236952Y
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- China
- Prior art keywords
- valve
- flap
- valve body
- sealing
- balancing
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model relates to a hydraulic and pneumatic self-balancing stop valve, which belongs to the technical field of the stop valve. The self-balancing stop valve is characterized in that a channel is arranged in the valve body, a sealing surface is arranged on the upper end surface of the channel, a valve flap is arranged in the inner cavity of the valve body, a sealing surface is arranged on the lower end surface of the valve flap, a balancing hole is also formed on the valve flap, a sealing ring is arranged in an annular groove formed by the upper cavity of the valve body, the outer circle of the valve flap and a pressure ring, a valve rod penetrates a valve cap, the lower end part of the valve rod is movably connected with the valve flap, and the valve cap is fixedly connected with the valve body. The utility model has the advantages that the utility model has good applicability to the environment, is not only suitable for the common medium environment, but also is particularly suitable for the high-temperature medium environment, and has good operating performance, the operating torque of the valve is only one tenth of that of the traditional stop valve due to the application of the self-balancing technology, the sealing performance is good, the sealing reliability of the valve under high-temperature and high-pressure is effectively enhanced, and the sealing life of the valve is remarkably prolonged.
Description
[technical field]
The utility model relates to a kind of stop valve technical field, particularly a kind of liquid, gas pressure self-balancing stop valve.
[background technique]
Ducted stop valves such as petrochemical industry, oil field, metallurgy and thermoelectricity plant mainly are made up of valve body, flap, valve gap and valve rod etc.When this stop valve is closed, because the pressure medium of valve body inlet acts on flap one side, and be directly delivered on the operating valve lever, operate very difficult, its degree is aggravated with the rising of pipeline medium pressure and the increase of valve latus rectum, have a strong impact on the sealability and the operability of valve, also restricted the application of stop valve on high pressure, big latus rectum pipeline.In order to address this problem, a kind of plunger type self balancing stop valve has appearred, because the seal ring of this valve is arranged in the groove between plunger and valve body, rely on the elasticity and the density of seal ring self to reach seal request, the sealing material that can satisfy this performance requirement at present is a rubber etc. only, so this valve is not suitable for the media environment of higher temperature.
[summary of the invention]
The purpose of this utility model is to provide a kind of liquid, gas pressure self-balancing stop valve that can be used for the high temperature media environment, its realizes liquid, the pneumatic self-balance characteristic of flap under the condition that is not increasing existing stop valve valve body, make that valve operation is very light, good seal performance, the media environment that can be used for all temps, reliable operation and method for making be easy.
In order to achieve the above object, the utility model liquid, gas pressure self-balancing stop valve, comprise valve body, flap, equalizing orifice, seal ring, pressure ring, valve gap and valve rod, this liquid, gas pressure self-balancing stop valve is to be provided with passage in valve body, on the upper-end surface of passage, be provided with sealing surface, flap is arranged in the body cavity, the flap lower end surface is provided with sealing surface, also be provided with equalizing orifice on the flap, seal ring is arranged in the annular groove that is constituted between valve body epicoele and flap cylindrical and the pressure ring, valve rod passes valve gap, and the valve rod underpart connects with flap is movable, and valve gap and valve body are fixedly connected.
The pressure ring of above-mentioned liquid, atmospheric pressure stop valve is arranged in the valve body epicoele, its role is to push tight seal.
Above-mentioned liquid, atmospheric pressure stop valve set sealing surface on flap, it is shaped as conical surface, plane or sphere.Above-mentioned liquid, gas pressure self-balancing stop valve set sealing surface on valve body, it is shaped as conical surface, plane or sphere.
Principle of the present utility model is: when stop valve of the present utility model with after pressure piping connects, stop valve is in closed condition, flap is under the promotion of valve rod, on the flap lower end surface on set sealing surface and the valve channel upper-end surface set sealing surface be adjacent to, when pressure medium when the valve body upper channel enters, medium can't be from flowing to the valve body lower channel between the sealing surface and between flap cylindrical and the seal ring, this moment liquid, atmospheric pressure acts on the circumferential surface of flap, the radial force that flap forms is cancelled each other, axial force to flap is zero, make flap be in pressure self balancing state, when pressure medium when the valve body lower channel enters, medium can't be from flowing to upper channel between the sealing surface and between flap cylindrical and the seal ring, this moment liquid, atmospheric pressure acts on the lower end surface of flap, and be passed to valve body by set equalizing orifice on the flap, valve gap connects the upper-end surface that the chamber acts on flap, form the opposite self balancing power of a pair of direction along axially going up of flap, when the utility model is in opening process, under the pulling of valve rod, flap is raised until the complete opening valve.
The beneficial effects of the utility model are: 1, suitable environment is good, is not only applicable to the generic media environment, also is specially adapted to the high temperature media environment; 2, good operation performance, the self balancing technology is used, and makes valve operation moment only be 1/10th of traditional stop valve; 3, good seal performance has improved the sealing reliability of valve under High Temperature High Pressure effectively, significant prolongation the sealing life of valve; 4, two-way flow is good, and novel valve has changed the shortcoming that existing stop valve can only one-way flow, but two-way flow arbitrarily control, expanded the application of stop valve; 5, good cost performance, novel valve manually series are lower than conventional valve cost, and mortor operated valve series is lower by 30% than the conventional valve cost, makes product have the very strong market competitiveness.
[description of drawings]
Fig. 1 is a structure sectional view of the present utility model.
[specific embodiment]
Below in conjunction with the drawings and specific embodiments the utility model is described in detail:
As shown in Figure 1, the utility model mainly is made up of valve body 1, flap 4, equalizing orifice 5, seal ring 6, pressure ring 7, valve gap 10, valve rod 11 etc.Be provided with passage 20 in the valve body 1, be provided with sealing surface 2 on the upper-end surface of passage 20, it is shaped as conical surface, plane or sphere; Flap 4 is arranged in valve body 1 inner chamber 15, flap 4 lower end surfaces 17 are provided with sealing surface 19, it is shaped as conical surface, plane or sphere, constitute sealing with set sealing surface 2 on the valve body 1, flap 4 is provided with equalizing orifice 5, makes valve body 1 lower channel 18 that places 17 belows, flap 4 lower end surfaces connect chamber 9 with the valve body, the valve gap that place 12 tops, flap 4 upper-end surfaces and links up; Seal ring 6 is arranged in the annular groove that is constituted between valve body 1 epicoele 14 of valve body upper channel 3 upsides and flap 4 cylindricals 16 and the pressure ring 7, and compresses seal ring 6 by pressure ring 7 lower end surfaces 13, makes that obtaining motive sealing between flap 4 cylindricals 16 and the seal ring 6 connects; Pressure ring 7 is arranged in valve body 1 epicoele 14, and be pressed on the seal ring 6 by the compressing member 8 that is fixed on the valve body 1: valve rod 11 passes valve gap 10, valve rod 11 underparts and 4 movable connections of flap, valve rod 11 portability flaps 4 move up and down in valve body 1 inner chamber 15, form the unlatching of stop valve or close; Valve gap 10 is fixedly connected with valve body 1.
Claims (4)
1, a kind of liquid, atmospheric pressure stop valve, comprise valve body, flap, equalizing orifice, seal ring, pressure ring, valve gap, valve rod, it is characterized in that being provided with in the valve body passage, on the passage upper-end surface, be provided with sealing surface, flap is arranged in the body cavity, the flap lower end surface is provided with sealing surface, also be provided with equalizing orifice on the flap, seal ring is arranged in the annular groove that is constituted between valve body epicoele and flap cylindrical and the pressure ring, valve rod passes valve gap, the valve rod underpart connects with flap is movable, and valve gap and valve body are fixedly connected.
2, liquid according to claim 1, atmospheric pressure stop valve is characterized in that the pressure ring that pushes tight seal is arranged in the valve body epicoele.
3, liquid according to claim 1 and 2, atmospheric pressure stop valve is characterized in that set sealing surface on the flap, and it is shaped as conical surface, plane or sphere.
4, liquid according to claim 1 and 2, atmospheric pressure stop valve is characterized in that set sealing surface on the valve body, and it is shaped as conical surface, plane or sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200550942U CN201236952Y (en) | 2008-01-25 | 2008-01-25 | Liquid-gas pressure break valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200550942U CN201236952Y (en) | 2008-01-25 | 2008-01-25 | Liquid-gas pressure break valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236952Y true CN201236952Y (en) | 2009-05-13 |
Family
ID=40649683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200550942U Expired - Lifetime CN201236952Y (en) | 2008-01-25 | 2008-01-25 | Liquid-gas pressure break valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201236952Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775662A (en) * | 2012-10-22 | 2014-05-07 | 费希尔久安输配设备(成都)有限公司 | Valve rod and valve plug assembly and valve with same |
| WO2014114256A1 (en) * | 2013-01-28 | 2014-07-31 | 费希尔久安输配设备(成都)有限公司 | Piston device and pressure regulator using same |
| CN103968091A (en) * | 2013-01-28 | 2014-08-06 | 费希尔久安输配设备(成都)有限公司 | Piston device and pressure regulator using same |
-
2008
- 2008-01-25 CN CNU2008200550942U patent/CN201236952Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775662A (en) * | 2012-10-22 | 2014-05-07 | 费希尔久安输配设备(成都)有限公司 | Valve rod and valve plug assembly and valve with same |
| WO2014114256A1 (en) * | 2013-01-28 | 2014-07-31 | 费希尔久安输配设备(成都)有限公司 | Piston device and pressure regulator using same |
| CN103968091A (en) * | 2013-01-28 | 2014-08-06 | 费希尔久安输配设备(成都)有限公司 | Piston device and pressure regulator using same |
| US9920835B2 (en) | 2013-01-28 | 2018-03-20 | Emerson Process Management Regulator Technologies, Inc. | Piston device and pressure regulator using same |
| RU2661997C2 (en) * | 2013-01-28 | 2018-07-23 | Эмерсон Процесс Менеджмент Регьюлэйтор Текнолоджиз, Инк. | Piston device and pressure regulator using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |