CN101634372A - Valve discharging gas under certain pressure - Google Patents
Valve discharging gas under certain pressure Download PDFInfo
- Publication number
- CN101634372A CN101634372A CN200810021216A CN200810021216A CN101634372A CN 101634372 A CN101634372 A CN 101634372A CN 200810021216 A CN200810021216 A CN 200810021216A CN 200810021216 A CN200810021216 A CN 200810021216A CN 101634372 A CN101634372 A CN 101634372A
- Authority
- CN
- China
- Prior art keywords
- spring
- valve
- sealing
- periphery
- under certain
- 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.)
- Pending
Links
Images
Landscapes
- Safety Valves (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a valve discharging gas under certain pressure. On the basis of the prior structure, a spring jacket is equipped on the periphery of a spring of the valve; a lower end of the spring jacket is connected to a valve seat; the periphery of an upper end of the spring jacket is equipped with a sealing ring which is equipped in a step hole manufactured in an inner cavity of a valve body; the lower part of the spring jacket positioned above a seal line opening of the valve seat is provided with a discharge hole communicated with the inner cavity of the valve body; the bottom of a valve rod equipped with the spring is equipped with a sealing element; the periphery of the sealing element is matched with the inner hole of the spring jacket, so that the spring jacket is in a sealing state in the inner cavity equipped with the spring; and the valve body is equipped with a drain interface communicated with the inner cavity of the valve body. The valve is provided with a spring jacket and the sealing element, so the spring is in the sealing state, is not eroded by media, always maintains inherent features, can normally realize the function of discharging gas under certain pressure, and effectively improves the service life of the valve; besides, the increased drain interface device solves the problem of dirt blockage, so the valve has the due functions.
Description
Technical field:
The present invention relates to a kind of valve, especially a kind of valve discharging gas under certain pressure.
Background technique:
Oil-gas ratio content be everlasting at present than on the higher wellhead assembly valve discharging gas under certain pressure being housed, this serial valve discharging gas under certain pressure is mainly used in submerged electric oil pump well, rationally control wellhead assembly pressure, stop the generation of the underload termination of pumping phenomenon that submersible electric pump causes because of gas lock, guarantee the normal operation of submersible electric pump.The valve discharging gas under certain pressure of present prior art, its inlet union is connected with the outlet socket of wellhead assembly, its working principle is: when the gas-liquid pressure in the wellhead assembly is focused to setting value, wash valve rod open, make the conical seal (contact) face of valve rod break away from sealing surface of seat, valve opening makes gas (liquid) discharging in the wellhead assembly.When wellhead assembly pressure descends and drops to setting value when following, valve rod resets under the effect of spring, two sealing surfaces reseal, in use there are two big defectives in this valve: the one, and spring is in the state of exposing, accelerate with the direct contact corrosion speed of medium, thereby cause spring can't reach the effect of modulation in advance in use for some time, the 2nd, because spring directly contacts with medium, dive when fluid and to stay when being condensed into dirt in the body cavity, make spring not have due effect, even with the level pressure of destructive valve self venting function.
Summary of the invention
The object of the present invention is to provide a kind of long service life that makes valve, can overcome the valve discharging gas under certain pressure of above-mentioned two big defectives effectively.
For achieving the above object, the technical solution adopted in the present invention is: this valve discharging gas under certain pressure comprises import, inlet union, valve body, test interface, valve seat, valve rod, spring, adjustable lever, outlet connection, outlet, seal arrangement, handlebar is formed, and it is characterized in that: the periphery at spring is furnished with spring overcoat, following of spring overcoat is connected on the valve seat, and the higher authorities' periphery of spring overcoat is furnished with Sealing, fits in the made step hole of body cavity; The bottom of spring overcoat upwards is provided with the discharge orifice that communicates with body cavity in the place being positioned at valve base sealing line mouth; Valve rod is furnished with Sealing in the bottom of joining spring, and the periphery of Sealing matches with the spring overcoat endoporus, makes spring overcoat be in sealing state at the inner chamber of being furnished with spring; On valve body, is furnished with the blowdown interface that communicates with body cavity.
Described a kind of valve discharging gas under certain pressure is characterized in that: inlet union, outlet connection are made as one of structural type of flange plate or thimble connector.
The present invention's beneficial effect compared with prior art:
1. increase spring overcoat and Sealing, make spring be in closed state, be not subjected to the erosion of medium, remain inherent feature, make spring in use, can normally bring into play level pressure venting function, the working life of having improved valve effectively;
2. increase the blowdown interface device, the cohesion fluid dirt that is produced when making work can directly be discharged by the blowdown interface, has solved the dirt blocking problem, makes valve bring into play due effect.
Description of drawings:
Fig. 1 is the plan view of this valve;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the another kind of example structure figure of Fig. 1 middle outlet joint;
Fig. 4 is an A place partial enlarged view among Fig. 1.
Among the figure:
1. import, 2. inlet union, 3. valve body, 4. test interface, 5. valve seat, 6. valve rod, 7. Sealing, 8. spring overcoat, 9. spring, 10. adjustable lever, 11. outlet connections, 16. outlet, 17. clips, 18. thimble connectors, 19. bolt, 20. blowdown interfaces, 21. discharge orifices, 22. seal arrangement, 23. handlebars, 24. body cavities.
Embodiment:
Describe the present invention in detail below in conjunction with accompanying drawing:
This valve discharging gas under certain pressure comprises this valve original structure as import 1, inlet union 2, and valve body 3, test interface 4, valve seat 5, valve rod 6, spring 9, adjustable lever 10, outlet connection 11, outlet 16, seal arrangement 22, handlebar 23 is formed.This patent one is to be furnished with spring overcoat 8 in the periphery increase of spring 9 on the original structure basis, and following of spring overcoat 8 is by being threaded on the valve seat 5, and the higher authorities' periphery of spring overcoat 8 is furnished with Sealing 7, fits in the made step hole of body cavity; The bottom of spring overcoat 8 upwards is provided with the discharge orifice 21 that communicates with body cavity 24 in the place being positioned at valve seat 5 potted line mouths; Valve rod 6 is furnished with Sealing 7 in the bottom of joining spring 9, and the periphery of Sealing 7 matches with spring overcoat 8 endoporus, makes spring overcoat 8 be in sealing state at the inner chamber of being furnished with spring 9; The 2nd, on valve body 3, be provided with the blowdown interface 20 that communicates with body cavity 24, the structure of this blowdown interface 20 is identical with test interface 4 structures.
Above-mentioned inlet union 2, outlet connection 11 can be made as one of structural type of flange plate or thimble connector 18.Inlet union 2 as shown in Figure 1, outlet connection 11 are first embodiment, what adopt is the form of flange plate structure, the seal groove inner seal liner 7 that is provided with on the card of flange plate is connected with the outlet socket 15 that is made as the flange plate structure form equally by bolt 19; That shown in Figure 3 is another example structure figure, what its joint adopted is thimble connector 18 structural types, the seal groove inner seal liner 7 that on the disk of thimble connector 18 sides, is provided with, the structural type identical with thimble connector 18 is made in outlet socket 15, periphery conical surface in thimble connector 18, outlet socket 15 is furnished with clip 17, is furnished with bolt 19 on the opening fillet of clip 17 and tightens up.
Claims (2)
1, a kind of valve discharging gas under certain pressure, comprise import (1), inlet union (2), valve body (3), test interface (4), valve seat (5), valve rod (6), spring (9), adjustable lever (10), outlet connection (11), outlet (16), seal arrangement (22), handlebar (23) is formed, and it is characterized in that: be furnished with spring overcoat (8) in the periphery of spring (9), following of spring overcoat (8) is connected on the valve seat (5), the higher authorities' periphery of spring overcoat (8) is furnished with Sealing (7), fits in the made step hole of body cavity; The bottom of spring overcoat (8) upwards is provided with the discharge orifice (21) that communicates with body cavity (24) in the place being positioned at valve seat (5) potted line mouth; Valve rod (6) is furnished with Sealing (7) in the bottom of joining spring (9), and the periphery of Sealing (7) matches with spring overcoat (8) endoporus, makes spring overcoat (8) be in sealing state at the inner chamber of being furnished with spring (9); On valve body (3), is furnished with the blowdown interface (20) that communicates with body cavity (24).
2, a kind of valve discharging gas under certain pressure according to claim 1 is characterized in that: inlet union (2), outlet connection (11) are made as one of structural type of flange plate or thimble connector (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810021216A CN101634372A (en) | 2008-07-22 | 2008-07-22 | Valve discharging gas under certain pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810021216A CN101634372A (en) | 2008-07-22 | 2008-07-22 | Valve discharging gas under certain pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101634372A true CN101634372A (en) | 2010-01-27 |
Family
ID=41593657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810021216A Pending CN101634372A (en) | 2008-07-22 | 2008-07-22 | Valve discharging gas under certain pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101634372A (en) |
-
2008
- 2008-07-22 CN CN200810021216A patent/CN101634372A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201344281Y (en) | Pilot-operated dished diaphragm solenoid valve | |
| RU2011106935A (en) | MEDICAL CONNECTOR (OPTIONS) AND METHOD OF OPERATION OF MEDICAL CONNECTION | |
| CN201524670U (en) | Steam cleaner | |
| CN201262256Y (en) | Constant pressure deflation valve | |
| CN205938267U (en) | Oppression formula flange with sealing ring | |
| CN111457240A (en) | Horizontal high-pressure large-displacement sand-proof natural gas drain valve | |
| CN101634372A (en) | Valve discharging gas under certain pressure | |
| CN201460812U (en) | Arrow-shaped check valve | |
| CN210978662U (en) | High-pressure breather valve with 25MPa | |
| CN201386521Y (en) | Well cleanout valve capable of bearing high pressure | |
| CN210950045U (en) | Arrow-shaped check valve | |
| CN101761679B (en) | Automatic exhaust valve | |
| CN201915901U (en) | Novel fast-exchanged check valve | |
| CN201763703U (en) | Gradual throttleer | |
| CN213270249U (en) | Valve group structure for pump | |
| CN204717128U (en) | A kind of step-down noise reduction modulating valve | |
| CN212338316U (en) | Valve core structure of valve | |
| CN215861902U (en) | Check valve of water pump | |
| CN217872734U (en) | Device for preventing well liquid in oil pipe from overflowing | |
| CN216590072U (en) | Adjustable contact-free hose automatic cut-off valve | |
| CN217177534U (en) | Lifting check valve | |
| CN205956421U (en) | Valve door part that leakproofness is high | |
| CN220487561U (en) | Marine remote control cyclone desander | |
| CN215445068U (en) | Piston stop valve capable of being installed at any angle | |
| CN102900857B (en) | A kind of Integral valve seat nesting type plate valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100127 |