CN201705290U - Novel constant pressure relief valve - Google Patents
Novel constant pressure relief valve Download PDFInfo
- Publication number
- CN201705290U CN201705290U CN2010202383265U CN201020238326U CN201705290U CN 201705290 U CN201705290 U CN 201705290U CN 2010202383265 U CN2010202383265 U CN 2010202383265U CN 201020238326 U CN201020238326 U CN 201020238326U CN 201705290 U CN201705290 U CN 201705290U
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- valve
- spring
- pressure
- valve body
- constant pressure
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- Expired - Fee Related
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- Safety Valves (AREA)
Abstract
The utility model provides a novel constant pressure relief valve, which includes a valve body as well as a valve rod, a valve core and a valve cap arranged in the valve body; a valve seat is mounted at the lower part of the valve body; and the novel constant pressure relief valve is characterized in that the valve seat has an upper mounting type structure, a spring is mounted on the valve core, a sealing ring for sealing the spring is mounted between the valve rod and the valve core, a handle is further arranged on the valve body and drives the valve rod to rotate, and the valve core can be compressed to forcedly seal the valve under a rated pressure. The valve adopts the whole upper mounting type structure, the disassembly and the maintenance are convenient, the spring is sealed and prevented from corrosion caused by an medium, the spring can normally play the function of relief at the constant pressure, and the service life of the valve is efficiently prolonged; and at the same time, a pressure gage is mounted at the lower end of the valve and can monitor the pressure in a well in real time.
Description
Technical field
The utility model relates to a kind of valve discharging gas under certain pressure, particularly relates to a kind of oil well valve discharging gas under certain pressure that is used for the level pressure venting in production wellhead.
Background technology
The valve discharging gas under certain pressure chamber possesses the means of deflation that inlet and outlet pressure is communicated with under the setting pressure condition with being used to control submersible electric pump sleeve pipe gas.Land oilfield submersible pump well ground flow manifold generally adopts valve discharging gas under certain pressure, to realize reasonably overlapping pressure-controlled, guarantees that gas lock energy operate as normal does not take place the electric pump unit.
And the valve discharging gas under certain pressure that uses at present, owing to adopted spring as control device for opening, there is such shortcoming: 1. the valve seat in the valve needs from assembling of valve bottom or dismounting, just valve integral body must be disassembled just and can carry out from pipeline when maintenance or replacing; 2. spring does not have protective device, in use is subjected to dielectric corrosion easily, and the long-term elasticity that can reduce spring of using influences its operate as normal, has reduced the application life of valve; 3. can't under rated pressure, seal fully the valve inlet end.
The utility model content
For technical deficiency is arranged on overcoming, the utility model provides a kind of dismounting easy to maintenance, good seal performance, the novel valve discharging gas under certain pressure of long service life.
In order to achieve the above object, the utility model is realized by the following technical solutions:
Novel valve discharging gas under certain pressure comprises valve body and is arranged on valve body interior valve rod, spool and valve gap; In valve body lower portion valve seat is installed also, is it is characterized in that, described valve seat is last dress formula structure, on the described spool spring is installed, the sealing ring that spring is sealed is housed between described valve rod and spool, and rotation valve rod can pressed spool, makes valve carry out forced seal under rated pressure.
According to above-mentioned novel valve discharging gas under certain pressure, wherein, on described valve gap and valve rod, be equipped with the scale direction board that shows corresponding scale indication, can clearly indicate the switching of valve.
According to above-mentioned novel valve discharging gas under certain pressure, wherein, also be provided with pressure meter in valve body lower portion described, can monitor borehole pressure in real time, also can import various test cables herein into, every data in the well are tested.
According to above-mentioned novel valve discharging gas under certain pressure, wherein, on described valve body, also be provided with handle, described handle connects the valve rod in the valve body, rotates by handle control valve rod.
The utility model adopts by valve seat and adorns the formula structure on the whole, has guaranteed that all component of valve are all packed into its dismounting and easy to maintenance by top; And adopted the sealing mat of Packing spring, make spring be in seal cavity, guaranteed that it does not have corrosion, improve application life, in use can adjust the valve rod pressed spool, make valve under rated pressure, carry out forced seal entrance point, scale direction board to the switching indication of valve has been installed simultaneously, make indication more obvious, pressure meter is housed on valve, can monitor borehole pressure in real time.
Description of drawings
Fig. 1 is the structural representation of pressure balance plug valve of the present utility model;
Wherein: 1. valve body, 2. valve seat, 3. spool, 4. sealing ring, 5. spring, 6. valve rod, 7. black box, 8. valve gap, 9. handle, 10. pressure meter.
The specific embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
Embodiment:
As shown in Figure 1, the novel valve discharging gas under certain pressure of present embodiment comprises valve body 1 and is installed in valve rod 6, spool 3, spring 5 and valve gap 8 in the valve body 1; In valve body 1 bottom valve seat 2 is installed also, this valve seat 2 adopts adorns the formula structure on the whole, promptly valve seat 2 by special spanner by on pack into and screw 1 li of valve body, guaranteed that all component of valve are all packed into its dismounting and easy to maintenance by top.
In valve body 1,, and seal, by valve gap 8 and pressure ring it is compressed at an upper portion thereof with black box 7 by the valve rod 6 that is threaded; On valve body 1 top handle 9 is installed, the valve rod 6 in this handle 9 and the valve body 1 is connected.
With handle 9 rotation valve rods 6, make it withstand spool 3 during work, can make valve force inlet seal in rated pressure; On valve gap 8 and valve rod 6, all have scale direction board 11, can indicate the switching of valve; Spring 5 is installed on the shoulder of spool 3, and valve rod 6 is equipped with sealing ring 4 with spool 3 connections, and the periphery of sealing ring 4 matches with valve rod 6 endoporus, make spring 5 and inner chamber be in sealing state, guarantee the sealing of spring 5, prevent that it is subjected to the corrosion of medium, improve the life-span of using.
In the utility model, in the bottom of valve body 1, promptly pressure meter 10 is equipped with in the valve bottom, can monitor borehole pressure in real time, also can import various test cables herein into, and every data in the well are tested.
Based on above-mentioned, the utility model adopts by valve seat 2 and adorns the formula structure on the whole, has guaranteed that all component of valve are all packed into its dismounting and easy to maintenance by top; And adopted the sealing mat of Packing spring, make spring 5 be in seal cavity, guaranteed that it does not have corrosion, improve application life, in use can adjust valve rod 6 pressed spools 3, make valve under rated pressure, carry out forced seal entrance point, scale direction board 11 to the switching indication of valve has been installed simultaneously, make indication more obvious, pressure meter is housed on valve, can monitor borehole pressure in real time.
Though the utility model discloses as above with preferred embodiment, so it is not in order to limit the utility model.Have in the technical field under the utility model and know the knowledgeable usually, in not breaking away from spirit and scope of the present utility model, when being used for a variety of modifications and variations.Therefore, protection domain of the present utility model is as the criterion when looking claims person of defining.
Claims (3)
1. novel valve discharging gas under certain pressure comprises valve body and is arranged on valve body interior valve rod, spool and valve gap; In valve body lower portion valve seat is installed, it is characterized in that, described valve seat is last dress formula structure, on the described spool spring is installed, and the sealing ring that spring is sealed is housed between described valve rod and spool.
2. novel valve discharging gas under certain pressure according to claim 1 is characterized in that, is equipped with the scale direction board that shows corresponding scale indication on described valve gap and valve rod.
3. novel valve discharging gas under certain pressure according to claim 1 is characterized in that, also is provided with pressure meter described in valve body lower portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202383265U CN201705290U (en) | 2010-06-24 | 2010-06-24 | Novel constant pressure relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202383265U CN201705290U (en) | 2010-06-24 | 2010-06-24 | Novel constant pressure relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705290U true CN201705290U (en) | 2011-01-12 |
Family
ID=43442445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202383265U Expired - Fee Related CN201705290U (en) | 2010-06-24 | 2010-06-24 | Novel constant pressure relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705290U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726805A (en) * | 2012-10-14 | 2014-04-16 | 盐城华跃石油机械制造有限公司 | Remote intelligent control constant-pressure air release device for sun-generated electric power |
| CN112539041A (en) * | 2020-12-02 | 2021-03-23 | 江苏恒达机械制造有限公司 | Gas production wellhead high-pressure valve structure and manufacturing process thereof |
-
2010
- 2010-06-24 CN CN2010202383265U patent/CN201705290U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726805A (en) * | 2012-10-14 | 2014-04-16 | 盐城华跃石油机械制造有限公司 | Remote intelligent control constant-pressure air release device for sun-generated electric power |
| CN103726805B (en) * | 2012-10-14 | 2017-12-12 | 江苏华跃石油机械制造有限公司 | A kind of sun-generated electric power long-distance intelligent control level pressure air-bleed device |
| CN112539041A (en) * | 2020-12-02 | 2021-03-23 | 江苏恒达机械制造有限公司 | Gas production wellhead high-pressure valve structure and manufacturing process thereof |
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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: 20110112 Termination date: 20110624 |
|
| DD01 | Delivery of document by public notice |
Addressee: Wang Shenggui Document name: Notification of Decision on Request for Restoration of Right |