CN2544091Y - Double-valve slag-proof device - Google Patents
Double-valve slag-proof device Download PDFInfo
- Publication number
- CN2544091Y CN2544091Y CN 02211581 CN02211581U CN2544091Y CN 2544091 Y CN2544091 Y CN 2544091Y CN 02211581 CN02211581 CN 02211581 CN 02211581 U CN02211581 U CN 02211581U CN 2544091 Y CN2544091 Y CN 2544091Y
- Authority
- CN
- China
- Prior art keywords
- valve
- cover
- screw thread
- threaded
- valve seat
- 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 relates to a dual valve slag prevention device, pertaining to petroleum mechanical field. An upper joint 1 is connected with one end of an outer tube by a screw thread and a lower joint 11 is connected with the other end by the screw thread; an upper valve cover 2 is connected with an inner tube 6 by the screw thread and an upper valve seat 4 is fixedly connected with the inner tube; an upper valve ball 3 is arranged in the upper valve cover 2, and inner side of a connecting pressure cover 7 is connected with the inner tube 6 by the screw thread and outer side is connected with the lower joint 11 by the screw thread; a lower valve cover 8 is arranged in the lower joint 11; a lower valve seat 10 is positioned in the lower joint 11 and a lower valve ball 9 is arranged in the lower valve seat in the lower valve seat. The utility model has the advantages of novel structure and adding a lower valve ball in the lower joint which provides better sealing effect by being matched with the upper valve ball to well prevent oil from leaking.
Description
Technical field the utility model belongs to the petroleum machinery field.
The original valve dreg-preventing device that is used to recover the oil of background technology is because of wherein having only a valve ball, and is poorly sealed sometimes, causes leakage of oil, thereby influences the normal oil producing operation in oil field.
Summary of the invention the utility model provides a kind of double-valve dreg-preventing device, to solve the shortcoming of present antiresiduum device easy oil leakage.The technical scheme that the utility model is taked is: top connection 1 is connected with urceolus 5 threaded one ends, lower contact 11 is threaded with urceolus 5 other ends, last valve cover 2 is threaded with interior pipe 6, last valve seat 4 is fixedlyed connected with interior pipe, last valve ball 3 places in the valve cover 2, and connection pressure cover 7 inboards are threaded with interior pipe 6, the outside is threaded with lower contact 11, and following valve cover 8 places in the lower contact 11, following valve seat 10 is positioned at lower contact 11, and following valve ball 9 places down on the interior following valve seat of valve cover.
Advantage of the present utility model is: novel structure, in lower contact, increase a following valve ball, and valve ball can play the effect of sealing better in the cooperation, can better prevent leakage of oil.
Appended drawings is the utility model structural representation.
The specific embodiment
Top connection 1 is connected with urceolus 5 threaded one ends, lower contact 11 is threaded with urceolus 5 other ends, last valve cover 2 is threaded with interior pipe 6, last valve seat 4 is fixedlyed connected with interior pipe, last valve ball 3 places in the valve cover 2, and connection pressure cover 7 inboards are threaded with interior pipe 6, the outside is threaded with lower contact 11, and following valve cover 8 places in the lower contact 11, following valve seat 10 is positioned at lower contact 11, and following valve ball 9 places down on the interior following valve seat of valve cover.
Claims (1)
- A kind of double-valve dreg-preventing device, top connection (1) is connected with urceolus (5) threaded one end, lower contact (11) is threaded with urceolus (5) other end, last valve cover (2) is threaded with interior pipe (6), last valve seat (4) is fixedlyed connected with interior pipe, last valve ball (3) places in the valve cover (2), it is characterized in that: connect and press cover (7) inboard to be threaded with interior pipe (6), the outside is threaded with lower contact (11), following valve cover (8) places in the lower contact (11), following valve seat (10) is positioned at lower contact (11), and following valve ball (9) places down on the interior following valve seat of valve cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211581 CN2544091Y (en) | 2002-04-28 | 2002-04-28 | Double-valve slag-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211581 CN2544091Y (en) | 2002-04-28 | 2002-04-28 | Double-valve slag-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2544091Y true CN2544091Y (en) | 2003-04-09 |
Family
ID=33691455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02211581 Expired - Fee Related CN2544091Y (en) | 2002-04-28 | 2002-04-28 | Double-valve slag-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2544091Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9316089B2 (en) | 2009-06-10 | 2016-04-19 | Baker Hughes Incorporated | Seat apparatus and method |
-
2002
- 2002-04-28 CN CN 02211581 patent/CN2544091Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9316089B2 (en) | 2009-06-10 | 2016-04-19 | Baker Hughes Incorporated | Seat apparatus and method |
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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: 20030409 Termination date: 20100428 |