CN205638355U - Rotatory valve of pumping wellhead - Google Patents
Rotatory valve of pumping wellhead Download PDFInfo
- Publication number
- CN205638355U CN205638355U CN201620524959.XU CN201620524959U CN205638355U CN 205638355 U CN205638355 U CN 205638355U CN 201620524959 U CN201620524959 U CN 201620524959U CN 205638355 U CN205638355 U CN 205638355U
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- CN
- China
- Prior art keywords
- valve
- cavity
- valve cavity
- seal box
- seal
- 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
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Abstract
The utility model belongs to the technical field of oilfield equipment, concretely relates to rotatory valve of pumping wellhead, this rotation valve include sucker rod body, valve cavity and be connected the seal box subassembly and valve nylon clamping ring, and valve nylon clamping ring is installed in valve cavity and the valve intracavity of being connected the seal box subassembly, and valve nylon clamping ring below is equipped with the valve seal cushion, the valve cavity with be connected between the universal adjusting deviation device and well head packing box that the seal box subassembly is located pumping wellhead sealing device, be equipped with the location locked groove between valve cavity and the valve outer shell that is connected the seal box subassembly and the base. Its theory of operation utilizes the valve cavity and the screw thread rotation of shell to compress tightly valve nylon clamping ring and valve seal cushion, and the valve seal cushion receives the extrusion tight packing valve cavity in back and holds the sucker rod body tightly. The utility model has the advantages of simple structure, reasonable in design, it is convenient, energy -concerving and environment -protective to maintain, long service life, easy operation, low cost, economy is suitable for.
Description
Technical field:
This utility model belongs to technical field of oil field equipment, is specifically related to a kind of oil pumping machine well head changeover valve.
Background technology:
At present, widely used sealed valve is wax removal valve, but wax removal valve has the disadvantage that: cost of manufacture is high, manufacturing process is complicated, install and maintenance complexity, operate inconvenience, service life is short, and the wax removal valve 50% of oil-field oil pumper well head is operating only haltingly, short time is accomplished by changing valve, existing wax removal valve is when carrying out maintenance oil pumping machine wellhead packing box, its both sides utilize screw thread to rotate and advance seal closedown well head, its troublesome poeration and unreliable, the uniformity that both sides advance can accurately not be grasped due to live operator, easily cause the damage of wax removal valve, waste time and energy, improve production cost, not only cause waste resource but also pollute environment, greatly have impact on production and the management in oil field, have impact on economic benefit and the social benefit of enterprise.So, it is the most necessary for designing a kind of oil pumping machine well head changeover valve.
Utility model content:
In place of this utility model makes up and improves above-mentioned the deficiencies in the prior art, provide a kind of simple in construction, reasonable in design, easy to maintenance, energy-conserving and environment-protective, simple to operate, length in service life, a kind of oil pumping machine well head changeover valve with low cost, it is easy to promotion and application on a large scale.
The technical solution adopted in the utility model is: a kind of oil pumping machine well head changeover valve, this changeover valve includes sucker rod body, valve cavity and is connected seal box assembly and valve nylon pressure ring, valve nylon pressure ring is installed on valve cavity with in the valve cavity being connected seal box assembly, is provided with valve seal rubber cushion below valve nylon pressure ring.
Described valve cavity be connected seal box assembly between universal deviation correcting device and the wellhead packing box of well top sealer of oil sucker.
Location locked groove it is provided with between described valve cavity with the valve housing being connected seal box assembly and base.
The beneficial effects of the utility model: simple in construction, reasonable in design, easy to maintenance, energy-conserving and environment-protective, service life is long, simple to operate, with low cost, economic and practical, it is easy to promotion and application on a large scale.In well top sealer of oil sucker, the position of changeover valve is in the middle of universal deviation correcting device and wellhead packing box, and its effect is the closedown well head when oil pumping machine well head packing box needs repairing.Its operation principle is to be provided with valve nylon pressure ring and valve seal rubber cushion in valve cavity, valve cavity is utilized to rotatably compress valve nylon pressure ring and valve seal rubber cushion with the screw thread of shell, valve seal rubber cushion is tight after being squeezed fills valve cavity and holds sucker rod tightly, reach to close the purpose of well head, operate rear opposite direction changeover valve shell, unclamp the rubber blanket of compression, reach to open the purpose of valve.It is provided with location locked groove between valve housing and base, either closes and open valve and may be by set screw locked for valve in certain position so that it is reach the stability used.Owing to mechanical compaction is longitudinally perpendicular stress, uniform force, seal is not caused damage, the most greatly extends service life.
Accompanying drawing illustrates:
Fig. 1 is this utility model structural representation.
Fig. 2 is the structural representation of valve nylon pressure ring in this utility model.
Fig. 3 is the structural representation of valve seal rubber cushion in this utility model.
Detailed description of the invention:
With reference to each figure, a kind of oil pumping machine well head changeover valve, this changeover valve includes sucker rod body 4, valve cavity and is connected seal box assembly 3 and valve nylon pressure ring 1, valve nylon pressure ring 1 is installed on valve cavity with in the valve cavity being connected seal box assembly 3, is provided with valve seal rubber cushion 2 below valve nylon pressure ring 1；Described valve cavity be connected seal box assembly 3 between universal deviation correcting device and the wellhead packing box of well top sealer of oil sucker；Location locked groove it is provided with between valve cavity with the valve housing being connected seal box assembly 3 and base.
In well top sealer of oil sucker, the position of changeover valve is in the middle of universal deviation correcting device and wellhead packing box, and its effect is the closedown well head when oil pumping machine well head packing box needs repairing.Its operation principle is to be provided with valve nylon pressure ring 1 and valve seal rubber cushion 2 in valve cavity, valve cavity is utilized to rotatably compress valve nylon pressure ring 1 and valve seal rubber cushion 2 with the screw thread of shell, valve seal rubber cushion 2 is tight after being squeezed fills valve cavity and holds sucker rod body 4 tightly, reach to close the purpose of well head, operate rear opposite direction changeover valve shell, unclamp the valve seal rubber cushion 2 of compression, reach to open the purpose of valve.It is provided with location locked groove between valve housing and base, either closes and open valve and may be by set screw locked for valve in certain position so that it is reach the stability used.Owing to mechanical compaction is longitudinally perpendicular stress, uniform force, seal is not caused damage, the most greatly extends service life.Simple in construction of the present utility model, reasonable in design, easy to maintenance, energy-conserving and environment-protective, service life is long, simple to operate, with low cost, economic and practical, it is easy to promotion and application on a large scale.
Claims (3)
1. an oil pumping machine well head changeover valve, it is characterized in that: this changeover valve includes sucker rod body (4), valve cavity and is connected seal box assembly (3) and valve nylon pressure ring (1), valve nylon pressure ring (1) is installed on valve cavity with in the valve cavity being connected seal box assembly (3), and valve nylon pressure ring (1) lower section is provided with valve seal rubber cushion (2).
A kind of oil pumping machine well head changeover valve the most according to claim 1, it is characterised in that: described valve cavity be connected seal box assembly (3) between universal deviation correcting device and the wellhead packing box of well top sealer of oil sucker.
A kind of oil pumping machine well head changeover valve the most according to claim 1, it is characterised in that: it is provided with location locked groove between described valve cavity with valve housing and the base being connected seal box assembly (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620524959.XU CN205638355U (en) | 2016-06-02 | 2016-06-02 | Rotatory valve of pumping wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620524959.XU CN205638355U (en) | 2016-06-02 | 2016-06-02 | Rotatory valve of pumping wellhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205638355U true CN205638355U (en) | 2016-10-12 |
Family
ID=57051428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620524959.XU Expired - Fee Related CN205638355U (en) | 2016-06-02 | 2016-06-02 | Rotatory valve of pumping wellhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205638355U (en) |
-
2016
- 2016-06-02 CN CN201620524959.XU patent/CN205638355U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20170602 |