CN202039811U - Blowout preventer for rod breakage of screw pump - Google Patents
Blowout preventer for rod breakage of screw pump Download PDFInfo
- Publication number
- CN202039811U CN202039811U CN2011201701640U CN201120170164U CN202039811U CN 202039811 U CN202039811 U CN 202039811U CN 2011201701640 U CN2011201701640 U CN 2011201701640U CN 201120170164 U CN201120170164 U CN 201120170164U CN 202039811 U CN202039811 U CN 202039811U
- Authority
- CN
- China
- Prior art keywords
- transmission body
- screw pump
- blind plate
- upper transmission
- blowout preventer
- 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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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model relates to a blowout preventer for rod breakage of a screw pump, belonging to an oil gas field mining pump and corollary equipment. The blowout preventer comprises a packing gland, an upper transmission body, a lower transmission body, a connector and a connecting hoop. Pipe wall overlaying segments which are in mutual threaded connection on the upper transmission body and the lower transmission body are located by using top threads; the internal diameter of the lower transmission body is larger than the external diameter of the bottom of the upper transmission body; and an automatic blowout preventing blind plate is arranged on the lower end surface of a nozzle of the upper transmission body. The upper end of the automatic blowout preventing blind plate is hinged with the lower end surface of the upper transmission body, and a spring with one end supporting against the lower end surface of the upper transmission body and the other end supporting against the back of the automatic blowout preventing blind plate is sleeved on a hinged shaft. The blowout preventer for rod breakage of the screw pump in the utility model is reasonable in structural design, and when a polish rod of the screw pump is broken, an automatic turning plate in the blowout preventer automatically closes under the action of the spring, so that oil gas is prevented from escaping, the pollution to the environment is avoided, and the working environment is protected.
Description
Technical field
The utility model belongs to exploitation of oil-gas field pump and corollary equipment, particularly relates to the disconnected bar preventer of a kind of screw pump.
Background technology
Screw pump is few because of its structure fortune part, and runner leads to and lacks, and big, the oily flow disturbance of area of passage is little, and the design feature that efficient is high is used with offshore oilfield by more and more land, and obtained obvious social.But it also exists the disconnected comparatively general phenomenon of taking off of screw pump polished rod in the production simultaneously, because well head blowout prevention box position is in opening-wide state, advance down or the oil gas in the flow process just can be scurried out this moment, cause ground or platform to pollute, bring potential safety hazard to production, also increased workload and cost simultaneously.
Summary of the invention
The utility model is intended to overcome the deficiencies in the prior art, and a kind of screw pump bar preventer that breaks is provided.
The screw pump of the present utility model bar preventer that breaks is by the packing pressure cap, goes up transmission body, underdrive body, connector and be connected hoop and constitute.The described transmission body that goes up links the tube wall intussusception section that connects with the mutual spiral shell of underdrive body and has jackscrew to be located, and the internal diameter of underdrive body is greater than the external diameter bottom the last transmission body, is provided with automatic blowout prevention blind plate on the lower surface of the mouth of pipe of last transmission body.
As further improvement of the utility model, automatically the upper end of blowout prevention blind plate is hinged mutually with the end opening end face of last transmission body, at suit on its articulated axle the one end lower surface, the other end that are butted on transmission body be butted on the spring at the back side of automatic blowout prevention blind plate.
As further improvement of the utility model, described automatic blowout prevention blind plate places the cavity space of underdrive body.
The screw pump of the present utility model bar preventer that breaks, reasonable in design, when disconnected bar takes place in the screw pump polished rod, the automatic panel-turnover in the preventer under the effect of spring automatically light close, prevented leaking of oil gas, stopped environment pollution, protected working environment.
Description of drawings
Fig. 1 is the structural representation of the disconnected bar preventer of the utility model screw pump.
The specific embodiment
The screw pump of the present utility model bar preventer that breaks is by packing pressure cap 1, goes up transmission body 2, underdrive body 3, connector 4 and is connected and bind round 5 and constitute.Last transmission body 2 links the tube wall intussusception section that connects with underdrive body 3 mutual spiral shells has jackscrew 6 to be located, and the internal diameter of underdrive body 3 is greater than the external diameter of last transmission body 2 bottoms, is provided with automatic blowout prevention blind plate 7 on the lower surface of the mouth of pipe of last transmission body 2.The upper end of described automatic blowout prevention blind plate 7 is hinged mutually with the end opening end face of last transmission body 2, at suit on its articulated axle the one end lower surface, the other end that are butted on transmission body 2 be butted on the spring 8 at the back side of automatic blowout prevention blind plate 7.And blowout prevention blind plate 7 places the cavity space 9 of underdrive body 3 automatically.
Claims (3)
1. the disconnected bar preventer of screw pump, be by packing pressure cap (1), go up transmission body (2), underdrive body (3), connector (4) and be connected hoop (5) formation, it is characterized in that the mutual spiral shell of transmission body (2) and underdrive body (3) links the tube wall intussusception section that connects and has jackscrew (6) to be located, the internal diameter of underdrive body (3) is greater than the external diameter of last transmission body (2) bottom, is provided with automatic blowout prevention blind plate (7) on the lower surface of the mouth of pipe of last transmission body (2).
2. the screw pump as claimed in claim 1 bar preventer that breaks, the upper end that it is characterized in that automatic blowout prevention blind plate (7) is hinged mutually with the end opening end face of last transmission body (2), at suit on its articulated axle the one end lower surface, the other end that are butted on transmission body (2) be butted on the spring (8) at the back side of automatic blowout prevention blind plate (7).
3. the screw pump as claimed in claim 1 or 2 bar preventer that breaks is characterized in that automatic blowout prevention blind plate (7) places the cavity space (9) of underdrive body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201701640U CN202039811U (en) | 2011-05-25 | 2011-05-25 | Blowout preventer for rod breakage of screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201701640U CN202039811U (en) | 2011-05-25 | 2011-05-25 | Blowout preventer for rod breakage of screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202039811U true CN202039811U (en) | 2011-11-16 |
Family
ID=44967260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201701640U Expired - Fee Related CN202039811U (en) | 2011-05-25 | 2011-05-25 | Blowout preventer for rod breakage of screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202039811U (en) |
-
2011
- 2011-05-25 CN CN2011201701640U patent/CN202039811U/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 |
Granted publication date: 20111116 Termination date: 20150525 |
|
| EXPY | Termination of patent right or utility model |