CN201246136Y - Blowout prevention safety valve of oil pumping machine well head - Google Patents
Blowout prevention safety valve of oil pumping machine well head Download PDFInfo
- Publication number
- CN201246136Y CN201246136Y CNU2008200140134U CN200820014013U CN201246136Y CN 201246136 Y CN201246136 Y CN 201246136Y CN U2008200140134 U CNU2008200140134 U CN U2008200140134U CN 200820014013 U CN200820014013 U CN 200820014013U CN 201246136 Y CN201246136 Y CN 201246136Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- well head
- hole
- blowout prevention
- 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
Images
Landscapes
- Check Valves (AREA)
- Safety Valves (AREA)
Abstract
The utility model provides a pumping unit wellhead blowout preventing safety valve which is mounted between an internal thread stop valve and a pressure gage on a pumping unit oil recovery wellhead. The blowout preventing safety valve comprises a valve seat body, a support pad, a seal ring, a valve ball, a gasket, a valve spring and a valve body; the valve spring and the valve ball are mounted in a valve body hole in sequence; the valve ball works in cooperation with the seal ring and seals an axial core of the valve seat body under the action of the elastic force of the valve spring; the opening of the support pad is downwards mounted in a the valve seat body hole; the valve seat body is connected with the valve body through a thread; and the pressure gage and the valve seat body, the valve body and a internal thread stop valve are respectively connected through a thread. When pressure gage is unloaded, the utility model can automatically close an oil outlet channel, which is used for preventing the phenomenon that produced liquid or (casing gas) is welled out and the environment around wellhead is polluted. When the pressure gage is working, the utility model is in a condition of keep working, which is used to measure the discharge pressure of produced liquid or ( casing gas ). The valve has the advantages of simple structure, convenience assembly and safe operation.
Description
Affiliated technical field
The utility model relates to a kind of inside screw stop valve on the pumping production well head and oil pumper well head blowout prevention safety valve between the pressure meter of being installed in.
Background technology
In the pumping production wellhead assembly, its little four-way in upper end connects produces valve and oil guide pipe, is the delivery channel of pumping production well head extraction liquid; Its lower end big four splicing sleeve valve and wireway are pumping production well head sleeve pipe gas output channels.Usually, for the pressure of measuring pumping production well head extraction liquid and the pressure of sleeve pipe gas, in the radial position of the oil guide pipe of pumping production well head and wireway, inside screw stop valve and pressure meter are installed respectively.There is following defective in the method for this measurement oil pumper well head extraction hydraulic coupling and sleeve pipe atmospheric pressure:
1. when changing pressure meter, inside screw stop valve need be closed in case extraction liquid (or sleeve pipe gas) leaks and pollution well head surrounding environment.When fitting badly if inside screw stop valve breaks down, the phenomenon of extraction liquid (or sleeve pipe gas) leakage pollution well head surrounding environment will take place.
2. because pumping production well production place major part is to be distributed in the field, extraction liquid (or sleeve pipe gas) will take place and leak and the phenomenon of pollution well head surrounding environment in the in a single day stolen or damage of pressure meter.
Summary of the invention
It is a kind of by valve body that the utility model provides, supporting pad, sealing ring, valve ball, sealing mat, the straight check valve of the spherical hermetically-sealed construction that valve spring and valve body are formed is installed between the inside screw stop valve and pressure meter on the pumping production well head, and it is a kind of blowout prevention safety valve that plays the blowout prevention effect at the pumping production well head.
The utility model solves the replacing pressure meter does not need to close inside screw stop valve, when fitting badly even inside screw stop valve breaks down, the technical scheme that technical problem adopted that extraction liquid (or sleeve pipe gas) leakage phenomenon can not take place yet is: when the utility model is changed pressure meter, valve ball is realized sealing cooperating with sealing ring on the valve body inner conical face under the resilient force of valve spring, be used to prevent extraction liquid (or sleeve pipe gas) to leak, play the security protection effect.
It is in a single day stolen or damage and take place that extraction liquid (or sleeve pipe gas) leaks and the technical scheme that technical problem adopted of polluting the well head surrounding environment is that the utility model solves pressure meter: the utility model is an one way valve.During the setting pressure table, oil pumper well head blowout prevention safety valve is in automatic opening on valve body; When unloading pressure meter, oil pumper well head blowout prevention safety valve is in automatic closed condition, plays the blowout prevention safety effect.
The beneficial effects of the utility model are: be installed in that oil pumper well head blowout prevention safety valve is an one way valve between pumping production well head inside screw stop valve and the pressure meter.During pressure meter work, this valve is in normally open, is used for the pressure of pumping production well head extraction liquid (or sleeve pipe gas).When changing pressure, need not to close inside screw stop valve, increase work efficiency; Inside screw stop valve breaks down when fitting badly, and pressure meter is stolen or when damaging, this valve cuts out well head extraction liquid (or sleeve pipe gas) exit passageway automatically, prevents that extraction liquid (or sleeve pipe gas) ejection well head from polluting the well head surrounding environment, plays the blowout prevention safety effect.The utility model is simple in structure, and is easy for installation, safe in utilization.
Description of drawings
Below in conjunction with accompanying drawing the utility model is illustrated.
Fig. 1 is the utility model profile constructional drawing.
Fig. 2 is the utility model longitudinal profile constructional drawing.
Among the figure 1, pressure meter, 2, valve body, 3, supporting pad, 4, sealing ring, 5, valve ball, 6, sealing mat, 7, valve spring, 8, valve body.
The specific embodiment
In Fig. 2, structure of the present utility model is formed and the shape structural feature is: the utility model is by valve body (2), supporting pad (3), sealing ring (4), valve ball (5), sealing mat (6), valve spring (7) and valve body (8) composition.Valve body (2) is the cylindrical sleeves structure: in the middle of its external cylindrical surface is that two recessed parallel rectangular faces are used to lay spanner.Axially two ends are respectively triangle internal thread and screw thread undercut, and the centre is a round taper hole and cylindrical hole, and a cannelure is arranged on round taper hole.Supporting pad (3) is a step annulus, and its cylindrical is the step face, and two open slots are arranged on the end face of step cylindrical, axially is the step through hole.Sealing mat (6) is the circular rings of thin-walled.Valve spring (7) is a cylindrical screw shape compression spring.The centre of valve body (8) is an outer-hexagonal shape face, and its both sides are triangle external screw thread and screw thread undercut, axially is the step through hole, and a cylindrical boss is arranged on the end face of minor diameter through hole.
In Fig. 1 and Fig. 2, connected mode of the present utility model and effect thereof are: sealing ring (4) and sealing mat (6) are installed in the cannelure of valve body (2) bellmouth respectively and on the end face, valve ball (5) places in valve body (2) bellmouth, and valve spring (7) is installed in valve body (8) endoporus with its cylindrical.Valve body (2) and valve body (8) are to be threaded.The end face of valve body (8) compresses sealing mat (6) and realizes end face seal.Valve ball (5) under the resilient force of valve spring (7) with valve body (2) internal conical surface on sealing ring (4) cooperate the sealing that realizes axial hole.Valve body (8) is connected with inside screw stop valve with its triangle external screw thread.When unloading pressure meter (1), extraction liquid (or sleeve pipe gas) is cooperated with sealing ring (4) on valve body (2) taper surface by valve ball (5) and to be enclosed in valve body (8) axial hole when valve body (8) axial hole.During setting pressure table (1), supporting pad (3) step cylindrical open slot direction is put into valve body (2) endoporus down, pressure meter (1) and valve body (2) are to be threaded and to compress the end face of supporting pad (3).Supporting pad (3) is depressed valve ball (5), makes the sealing ring (4) on valve ball (5) disengaging valve body (2) the inner conical face.Extraction liquid (or sleeve pipe gas) enters pressure meter (1) axial hole through supporting pad (3) open slot and axial hole, can measure the outlet pressure of extraction liquid (or sleeve pipe gas).The utility model is mounted in the straight check valve of a kind of spherical hermetically-sealed construction between oil pumper well head inside screw stop valve and the pressure meter, is a kind of blowout prevention safety valve that plays the blowout prevention effect on the pumping production well head.
Claims (6)
1. oil pumper well head blowout prevention safety valve, it is characterized in that: it is by valve body (2), supporting pad (3), sealing ring (4), valve ball (5), sealing mat (6), the straight check valve of the spherical hermetically-sealed construction that valve spring (7) and valve body (8) are formed is installed between the inside screw stop valve and pressure meter on the pumping production well head; Valve spring (7) and valve ball (5) are installed in valve body (8) stepped hole successively, and sealing ring (4) and sealing mat (6) are installed in the cannelure of valve body (2) round taper hole respectively and on the end face, valve body (2) and valve body (8) are to be threaded; The open slot direction of supporting pad (3) is installed in valve body (2) hole down; Pressure meter (1) and valve body (2), valve body (8) and inside screw stop valve are respectively to be threaded togather.
2. oil pumper well head blowout prevention safety valve according to claim 1, it is characterized in that: valve body (2) is the cylindrical sleeves structure: the centre of its external cylindrical surface is two recessed parallel rectangular faces, axial two ends are respectively triangle internal thread and screw thread undercut, the centre is a round taper hole and cylindrical hole, and a cannelure is arranged on round taper hole.
3. oil pumper well head blowout prevention safety valve according to claim 1, it is characterized in that: supporting pad (3) is the step annulus; Its cylindrical is the step face, and two open slots are arranged on the end face of step cylindrical, axially is the step through hole.
4. oil pumper well head blowout prevention safety valve according to claim 1, it is characterized in that: the centre of valve body (8) is an outer-hexagonal shape face, its both sides are respectively triangle external screw thread and screw thread undercut, axial location is the step through hole, and a cylindrical boss is arranged on the end face of minor diameter through hole.
5. oil pumper well head blowout prevention safety valve according to claim 1, it is characterized in that: sealing mat (6) is the circular rings of thin-walled.
6. oil pumper well head blowout prevention safety valve according to claim 1 is characterized in that: valve spring (7) is a cylindrical screw shape compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200140134U CN201246136Y (en) | 2008-07-14 | 2008-07-14 | Blowout prevention safety valve of oil pumping machine well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200140134U CN201246136Y (en) | 2008-07-14 | 2008-07-14 | Blowout prevention safety valve of oil pumping machine well head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246136Y true CN201246136Y (en) | 2009-05-27 |
Family
ID=40729957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200140134U Expired - Fee Related CN201246136Y (en) | 2008-07-14 | 2008-07-14 | Blowout prevention safety valve of oil pumping machine well head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246136Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507080A (en) * | 2011-11-03 | 2012-06-20 | 鞍山市特种设备监督检验所 | Automatic leakproof pressure gauge seat |
| CN102998051A (en) * | 2012-10-12 | 2013-03-27 | 安徽蓝德仪表有限公司 | Medium-pressure rotary sealing structure with gas |
| CN108397632A (en) * | 2018-03-02 | 2018-08-14 | 深圳市鼎星精密科技有限公司 | A kind of gas circuit circuit quick access device |
| CN108662156A (en) * | 2018-08-28 | 2018-10-16 | 吴忠市通惠机械制造有限公司 | A kind of blowout prevention Anti-dismantling pressure gauge valve |
| CN110593800A (en) * | 2019-09-23 | 2019-12-20 | 孙支林 | Combined blowout-preventing anti-theft wellhead device |
-
2008
- 2008-07-14 CN CNU2008200140134U patent/CN201246136Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507080A (en) * | 2011-11-03 | 2012-06-20 | 鞍山市特种设备监督检验所 | Automatic leakproof pressure gauge seat |
| CN102998051A (en) * | 2012-10-12 | 2013-03-27 | 安徽蓝德仪表有限公司 | Medium-pressure rotary sealing structure with gas |
| CN108397632A (en) * | 2018-03-02 | 2018-08-14 | 深圳市鼎星精密科技有限公司 | A kind of gas circuit circuit quick access device |
| CN108662156A (en) * | 2018-08-28 | 2018-10-16 | 吴忠市通惠机械制造有限公司 | A kind of blowout prevention Anti-dismantling pressure gauge valve |
| CN110593800A (en) * | 2019-09-23 | 2019-12-20 | 孙支林 | Combined blowout-preventing anti-theft wellhead device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201246136Y (en) | Blowout prevention safety valve of oil pumping machine well head | |
| CN102564702B (en) | Device and system for testing packer in formation tester | |
| CN101173875A (en) | Method and device for checking oil channel sealing of engine cylinder | |
| CN100585241C (en) | Hydraulic dual circuit explosion prevention valve | |
| CN111981168A (en) | Pilot operated safety valve | |
| CN204805827U (en) | Incessantly defeated area is pressed and is changed high -pressure undergauge shutoff head for ball valve | |
| CN103939619B (en) | Modular differential pressure bottle valve | |
| CN202708223U (en) | Break-away valve for gas filling machine | |
| CN203963386U (en) | A kind of novel tape-pressure leakage clogging device | |
| CN202852326U (en) | Isolated seal fixture with pressure | |
| CN202580185U (en) | Novel pulling-cut valve | |
| CN105319020A (en) | Jacket-type oil casing air tightness detection device and detection method | |
| CN103216209A (en) | Pipe interior packer for detecting sealing property of oil sleeve | |
| CN102878383A (en) | Isolating belt pressure sealing clamp | |
| CN203188963U (en) | In-pipe packer for oil drivepipe leakproofness detection | |
| CN112923161B (en) | Air exhaust valve | |
| CN202023529U (en) | Friction type multifunctional hole packer for drawing out methane or injecting water | |
| KR101425301B1 (en) | The valve sealant fitting double joint structure | |
| CN211342874U (en) | Valve leakage controller for gas well mouth | |
| CN204164448U (en) | A kind of pressurized container uses emergency seat | |
| CN209856413U (en) | Quick cut-off safety valve | |
| CN111350847A (en) | Device, pressure pipeline and method for reducing water pressure of outer wall of pressure steel pipe | |
| CN217354697U (en) | Sectional pressure testing device for tubular oil pump | |
| CN208204044U (en) | A kind of pressure release silk plug | |
| CN213579927U (en) | Downhole safety valve testing device |
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: 20090527 |