CN2641390Y - Emptying blowoff valve - Google Patents
Emptying blowoff valve Download PDFInfo
- Publication number
- CN2641390Y CN2641390Y CN 03250331 CN03250331U CN2641390Y CN 2641390 Y CN2641390 Y CN 2641390Y CN 03250331 CN03250331 CN 03250331 CN 03250331 U CN03250331 U CN 03250331U CN 2641390 Y CN2641390 Y CN 2641390Y
- Authority
- CN
- China
- Prior art keywords
- valve
- throttling
- blowdown
- seat
- valve 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 210000000476 body water Anatomy 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 10
- 210000001503 joint Anatomy 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009711 regulatory function Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Images
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- Lift Valve (AREA)
Abstract
The blowdown valve for oil and gas system is one multipurpose valve capable of realizing reliable stop seal and possessing throttle, blowdown and blowdown functions. The throttling type water-saving valve comprises a valve body, a valve seat, a valve core and a valve rod, wherein the valve seat, the valve core and the valve rod are arranged in the valve body, the valve seat is a throttling type valve seat, the lower portion of the throttling type valve seat extends into a water inlet cavity of the valve body and is provided with a plurality of spiral throttling holes which are symmetrically distributed, a valve sleeve is in butt joint with the valve seat, a symmetrical throttling hole and a long throttling pollution discharge window which are communicated with a water outlet cavity of the valve body are respectively formed in the side wall of the valve sleeve, the symmetrical throttling hole is located in the lower portion of the valve sleeve, the long throttling pollution discharge window is located in the upper portion of. Is an ideal updating product of the prior air release valve and the blow-down valve.
Description
Technical field
The utility model relate to a kind of be applied to oil, natural gas system, both can realize reliably by sealing, have the multipurpose valve of throttling, emptying and dirt eliminating function again.
Background technique
For a long time, the emptying drainage of rock gas all adopts plain carbon steel check valve, stop valve.During the emptying blowdown, sealing surface washes away very serious, valve emptying blowdown noise is big, on-the-spot noise is all more than 100dBA, high pressure emptying blowdown operating mode is more up to 135dBA, have only several times the working life of valve, tens times, and operation once leaked serious in the back, need often to change, have a strong impact on normal gas transmission operation.For overcoming this shortcoming, present way is to use special-purpose atmospheric valve and use special-purpose blowdown valve at drainage at blowdown system.But because valve has adopted two kinds of different structures respectively at emptying and drainage, component universality is poor, makes troubles to client's design and type selecting, and the stock who has increased the user simultaneously prepares quantity.
The model utility content
The purpose of this utility model is the above-mentioned shortcoming that overcomes prior art, and a kind of emptying blowdown valve that integrates sealing, adjusting, emptying and dirt eliminating function is provided.
The emptying blowdown valve of realizing the utility model purpose comprises valve body, be located at the valve seat in the valve body, spool and valve rod, described valve seat is that an its underpart is stretched in the valve inleting water chamber and offered the throttle type valve seat of the spiral segment discharge orifice of some symmetrical distributions, on valve seat to being connected to a valve pocket, on the sidewall of valve pocket, offer the symmetrical throttle orifice and the microscler throttling blowdown window that communicate with the valve body water chamber respectively, this symmetry throttle orifice is positioned at the bottom of valve pocket, microscler throttling blowdown window is positioned at the top of throttle orifice, described spool is installed in the valve pocket, is connected with a soft seal seat that is made of polytetrafluoroethylmaterial material in the bottom of spool.
Working principle of the present utility model is as follows:
End sealing function:
Handle the motion of valve rod actuating valve core, spool is with microscler throttling blowdown window on the valve pocket and throttle orifice sealing, and the soft PTFE sealing seat of spool bottom contacts with the hard sealing surface on the valve seat and realizes initial sealing.Along with the increase of closing moment, soft sealing material produces elastic compression, and the hard sealing surface of spool contacts with the hard sealing surface of valve seat, and sealability reaches zero leakage, finishes closing of valve, realizes by sealing function.
The throttling regulatory function:
Valve is when opening shape, medium by the time at first produce and rotatablely move through the spiral segment discharge orifice on the throttle type valve seat, enter valve seat and in valve seat, interact, consumed energy also changes direction, upwards flow in the valve pocket along the center; When valve portion is divided unlatching, when promptly only the symmetrical throttle orifice of its underpart is for the unlatching shape, the orderly laminar flow of the then bootable media implementation of symmetrical throttle orifice of the several angle that staggers between layer and the layer.In the valve opening process, the continuous variation of the symmetrical throttle orifice of dependence valve pocket bottom and the microscler throttling blowdown window area on top realizes the throttling regulatory function.
High Pressure Difference emptying function:
When carrying out the emptying operation, valve wide open is opened, the medium at first spiral segment discharge orifice from the throttle valve seat enters valve base cavity, high-pressure medium enters valve pocket after this is through first order expenditure and pressure, enter pipe downstream behind the expenditure and pressure for the second time by throttle orifice on the valve pocket and throttling blowdown window process again, its pressure reduces greatly behind the medium process two-stage expenditure and pressure, thereby can be directly to atmosphere emptying or inflow blowdown receiving device.Thereby the direct emptying function under the realization High Pressure Difference.
Dirt eliminating function:
Valve is placed fully open position, promptly open the throttling blowdown window on valve pocket top fully, because throttling blowdown window possesses bigger opening size, so the granule foreign in the medium can be discharged inflow blowdown receiving device, realization dirt eliminating function from the blowdown window.
Compared with the aforementioned existing similar products, the utility model has the advantages that with a valve to have possessed four kinds of functions simultaneously, greatly facilitate the user type selecting and install and use; The soft seal valve seat is fixed on the spool, and no matter medium flows forward or backwards, all the fault that Sealing is blown can not occur.It is the desirable update product of existing atmospheric valve and blowdown valve.
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.
Description of drawings
Fig. 1 is the structural representation of this emptying blowdown valve
Fig. 2 be this emptying blowdown valve by the station schematic representation
Fig. 3 is that this emptying blowdown valve aperture is 40% station schematic representation
Embodiment
As shown in Figure 1, the formation of this emptying blowdown valve comprises valve body 1, be located at the valve seat 2 in the valve body 1, spool 3 and valve rod 4, described valve seat 2 is that an its underpart is stretched in valve inleting water chamber 5 and offered the throttle type valve seat of the spiral segment discharge orifice 6 of some symmetrical distributions, on valve seat to being connected to a valve pocket 7, on the sidewall of valve pocket 7, offer the symmetrical throttle orifice 9 and the microscler throttling blowdown window 10 that communicate with valve body water chamber 8 respectively, this symmetry throttle orifice 9 is positioned at the bottom of valve pocket, microscler throttling blowdown window 10 is positioned at the top of throttle orifice 9, described spool 3 is installed in the valve pocket 7, is connected with a soft seal seat 11 that is made of polytetrafluoroethylmaterial material in the bottom of spool.12 is handwheel among the figure, and 13 is support, and 14 is valve gap, and 15 is the hard sealing surface of spool, and 17 is the O RunddichtringO, and 19 is grease pouring valve, and 20 is safety cover, all continues to use the structural type of existing valve.What Fig. 1 provided is the schematic representation of the standard-sized sheet station of this emptying blowdown valve, Fig. 2 provides be this emptying blowdown valve by the station schematic representation, soft seal this moment seat 11 is crimped on the hard sealing surface 18 of valve seat.Fig. 3 is that this emptying blowdown valve aperture is 40% station schematic representation, and promptly only the symmetrical throttle orifice of its underpart is the station schematic representation that unlatching shape, boot media realize orderly laminar flow.
For convenient the removing accumulates in impurity bigger in the valve body chamber, the bottom of described valve body can be designed to detachable end formula bottom.Promptly end cap 16 is installed in the bottom that constitutes valve body on the valve body with a connecting bolt 21.22 is O RunddichtringO between end cap and valve body among the figure.
Claims (2)
1, the emptying blowdown valve, comprise valve body, be located at the valve seat in the valve body, spool and valve rod, it is characterized in that described valve seat is that an its underpart is stretched in the valve inleting water chamber and offered the throttle type valve seat of the spiral segment discharge orifice of some symmetrical distributions, on valve seat to being connected to a valve pocket, on the sidewall of valve pocket, offer the symmetrical throttle orifice and the microscler throttling blowdown window that communicate with the valve body water chamber respectively, this symmetry throttle orifice is positioned at the bottom of valve pocket, microscler throttling blowdown window is positioned at the top of throttle orifice, described spool is installed in the valve pocket, is connected with a soft seal seat that is made of polytetrafluoroethylmaterial material in the bottom of spool.
2, emptying blowdown valve as claimed in claim 1, the bottom that it is characterized in that described valve body are detachable end formula bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03250331 CN2641390Y (en) | 2003-09-15 | 2003-09-15 | Emptying blowoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03250331 CN2641390Y (en) | 2003-09-15 | 2003-09-15 | Emptying blowoff valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2641390Y true CN2641390Y (en) | 2004-09-15 |
Family
ID=34293886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03250331 Expired - Fee Related CN2641390Y (en) | 2003-09-15 | 2003-09-15 | Emptying blowoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2641390Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865408A (en) * | 2011-07-08 | 2013-01-09 | 艾默生过程管理(天津)阀门有限公司 | Unit for valve and valve with unit |
| CN104040233A (en) * | 2011-12-16 | 2014-09-10 | Cla-Val公司 | Anti-cavitation valve seat |
-
2003
- 2003-09-15 CN CN 03250331 patent/CN2641390Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865408A (en) * | 2011-07-08 | 2013-01-09 | 艾默生过程管理(天津)阀门有限公司 | Unit for valve and valve with unit |
| CN102865408B (en) * | 2011-07-08 | 2018-09-18 | 艾默生过程管理(天津)阀门有限公司 | Unit for valve and the valve including the unit |
| CN104040233A (en) * | 2011-12-16 | 2014-09-10 | Cla-Val公司 | Anti-cavitation valve seat |
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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: 20040915 Termination date: 20100915 |