CN205225159U - Casing head structure of scour prevention and direction function - Google Patents
Casing head structure of scour prevention and direction function Download PDFInfo
- Publication number
- CN205225159U CN205225159U CN201520849433.4U CN201520849433U CN205225159U CN 205225159 U CN205225159 U CN 205225159U CN 201520849433 U CN201520849433 U CN 201520849433U CN 205225159 U CN205225159 U CN 205225159U
- Authority
- CN
- China
- Prior art keywords
- casing head
- bush
- flange
- head body
- adpting flange
- 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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- Gasket Seals (AREA)
Abstract
The utility model relates to an oil machinery specifically is a casing head structure of scour prevention and direction function, it includes the casing head body, this end of body of casing head pass through flange and with other pipe connections, characterized by: still including the direction bush, direction bush rear inlays in the flange of this end of body of casing head, and the head section of direction bush is stretched out the flange tip and is higher than sealed backing ring place plane. The direction bush of this casing head structure prevents the drilling fluid of intraductal circulation to enter into sealed backing ring internal surface clearance department in drilling process, makes it can not form the vortex flow phenomenon. Simultaneously, the direction bush stretches out this end of body of casing head certain distance, plays the guide effect, makes casing head and other devices have better direction function in assembling process. Thereby the possibility of the spare part collision of double -screw bolt and casing head or other and casing head assembly has been protected.
Description
Technical field
The utility model relates to field of petroleum machinery, specifically the CASINGHEAD STRUCTURE of a kind of protection against erosion and guide function.
Background technology
Now casing head gasket ring in drilling process is change gasket ring by the solution after erosion failure, but changes gasket ring, just needs casing head upper flange bolt to pull down, takes time and effort.The guiding of existing casing head in installation process is by range estimation location, bolt is installed in bolt hole, and bolt hole and bolts assemblies gap are generally 2-4mm, also likely encounter on bolt thread in guiding process, causing bolt thread needs do over again or scrap, device just may be caused to leak as encountered casing head sealing surface.
Summary of the invention
The purpose of this utility model is, provides a kind of and is convenient to centering installation and can avoids the formation of the band CASINGHEAD STRUCTURE of washing away.
In order to achieve the above object, the utility model is achieved in that
A kind of CASINGHEAD STRUCTURE with protection against erosion and guide function, it comprises casing head body, described casing head body end is provided with adpting flange, casing head body end is connected with other pipe fittings by adpting flange, the embedded gasket ring of adpting flange of casing head body end, also comprise pilot bushing, described pilot bushing rear is embedded in the adpting flange of casing head body end, and the head section of pilot bushing stretches out adpting flange end and higher than gasket ring place plane.
The pilot bushing of this CASINGHEAD STRUCTURE stops the drilling fluid of circulation in pipe to enter into gasket ring internal surface gaps place in drilling process; make it can not form vortex flow phenomenon; so washing away gasket ring can be avoided; protect gasket ring; have in drilling process and reduce gasket ring replacing quantity, improve drilling efficiency.Meanwhile, pilot bushing stretches out casing head body end certain distance, plays guide effect, makes casing head and other device in assembling process, have good guide function.Thus protect the possibility that component that stud and casing head or other and casing head assemble collide.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
The utility model is further illustrated below by way of specific embodiment.
A kind of CASINGHEAD STRUCTURE with protection against erosion and guide function, it comprises casing head body 1, described casing head body 1 end is provided with adpting flange 3, casing head body 1 end is connected with other pipe fittings 4 by adpting flange 3, the embedded gasket ring 2 of adpting flange 3 of casing head body 1 end, also comprise pilot bushing 5, described pilot bushing 5 rear is embedded in the adpting flange 3 of casing head body 1 end, and the head section of pilot bushing 5 stretches out adpting flange 3 end and higher than gasket ring 2 place plane.
The pilot bushing 5 of this CASINGHEAD STRUCTURE stops the drilling fluid of circulation in pipe to enter into gasket ring 2 internal surface gaps place in drilling process; make it can not form vortex flow phenomenon; so can avoid washing away gasket ring 2; protect gasket ring 2; in drilling process, there is minimizing gasket ring 2 to change quantity, improve drilling efficiency.Meanwhile, pilot bushing 5 stretches out casing head body 1 end certain distance, plays guide effect, makes casing head and other device in assembling process, have good guide function.Thus protect the possibility that component that stud and casing head or other and casing head assemble collide.
Claims (1)
1. one kind has the CASINGHEAD STRUCTURE of protection against erosion and guide function, it comprises casing head body, described casing head body end is provided with adpting flange, casing head body end is connected with other pipe fittings by adpting flange, the embedded gasket ring of adpting flange of casing head body end, it is characterized in that: also comprise pilot bushing, described pilot bushing rear is embedded in the adpting flange of casing head body end, and the head section of pilot bushing stretches out adpting flange end and higher than gasket ring place plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849433.4U CN205225159U (en) | 2015-10-30 | 2015-10-30 | Casing head structure of scour prevention and direction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849433.4U CN205225159U (en) | 2015-10-30 | 2015-10-30 | Casing head structure of scour prevention and direction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205225159U true CN205225159U (en) | 2016-05-11 |
Family
ID=55900233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520849433.4U Expired - Fee Related CN205225159U (en) | 2015-10-30 | 2015-10-30 | Casing head structure of scour prevention and direction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205225159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501077A (en) * | 2016-11-30 | 2017-03-15 | 上海新莲泵阀有限公司 | Quick-clamping structure for pressure test |
-
2015
- 2015-10-30 CN CN201520849433.4U patent/CN205225159U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501077A (en) * | 2016-11-30 | 2017-03-15 | 上海新莲泵阀有限公司 | Quick-clamping structure for pressure test |
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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: 20160511 Termination date: 20201030 |