CN203650419U - Tool for pulling out plunger pump valve seat - Google Patents
Tool for pulling out plunger pump valve seat Download PDFInfo
- Publication number
- CN203650419U CN203650419U CN201420046259.5U CN201420046259U CN203650419U CN 203650419 U CN203650419 U CN 203650419U CN 201420046259 U CN201420046259 U CN 201420046259U CN 203650419 U CN203650419 U CN 203650419U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- pulling claw
- center
- pump valve
- center rod
- 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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- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
A tool for pulling out a plunger pump valve seat comprises a pulling claw seat (1), an elastic ring (2), a pulling claw (3), a bush (4), a center rod (5) and a nut (6), and is characterized in that a square head is arranged at the right end of the center rod (5) of the tool for pulling out the plunger pump valve seat, the nut (6) is installed on an external thread in the square head, an external thread is arranged at the left end of the center rod (5), a cone frustum arranged inward from the left end of the center rod (5) is installed on the center rod (5) , the bush (4) is installed in the middle of the center rod (5), the pulling claw (3) is installed on the cone frustum of the center rod (5), and the left end of the center rod (5) is connected with the pulling claw seat (1) through a thread. The tool for pulling out the plunger pump valve seat is suitable for maintenance of the plunger pump and convenient to operate, reduces maintenance time, reduces labor intensity of workers, guarantees oilfield water flooding, and improves the oil well yield.
Description
Technical field
the utility model relates to plunger displacement pump maintenance tool, specifically a kind of plunger displacement pump valve seat pull-out instrument.
Background technology
in water flooding is produced, for under-injected well, need carry out single well pressure boost with plunger displacement pump to single well, because plunger displacement pump moves for a long time under high pressure conditions, general pressure often need to carry out maintain and replace to spool and valve seat more than being greater than 20Mpa, due to the former pull-out tool design of valve seat unreasonable structure, often fracture, extends plunger displacement pump maintenance time, affects oil-field flooding and produces.
Summary of the invention
the purpose of this utility model is exactly in view of the foregoing defects the prior art has, and a kind of plunger displacement pump valve seat pull-out instrument is provided.
technical solutions of the utility model: pulling claw seat, elastic ring, pulling claw, lining, center-pole, nut.The center-pole right-hand member of described plunger displacement pump valve seat pull-out instrument is provided with square toes, on the external screw thread of square toes the inside, nut is housed, and left end is provided with external screw thread, be provided with inwards the frustum of a cone, in the middle of center-pole, lining is housed, pulling claw is equipped with at the frustum of a cone place of center-pole, and the left end of center-pole is threaded with pulling claw seat.
pulling claw seat in above-mentioned plunger displacement pump valve seat pull-out instrument is the superimposed body of cylinder and the frustum of a cone, and center is provided with internal thread through hole, and left end is vertically crossingly installed with pilot hole.
pulling claw in above-mentioned plunger displacement pump valve seat pull-out instrument is three valve structures, and combination inner circle is the conical surface, and cylindrical is provided with groove, and elastic ring is housed.
the beneficial effects of the utility model are: be applicable to plunger displacement pump maintenance, and easy to operate, shorten maintenance time, alleviate workman's labour intensity, guarantee oil-field flooding, increase oil well output.
Accompanying drawing explanation
fig. 1-on-the-spot application structure schematic diagram of the present utility model.
fig. 2-A-A view of the present utility model.
in figure, 1. pulling claw seat, 2. elastic ring, 3. pulling claw, 4. lining, 5. center-pole, 6. nut, 7. valve seat; C. pilot hole.
The specific embodiment
by reference to the accompanying drawings, the utility model will be further described:
plunger displacement pump valve seat pull-out instrument is made up of pulling claw seat 1, elastic ring 2, pulling claw 3, lining 4, center-pole 5, nut 6.Center-pole 5 right-hand members of described plunger displacement pump valve seat pull-out instrument are provided with square toes, on the external screw thread of square toes the inside, nut 6 is housed, left end is provided with external screw thread, be provided with inwards the frustum of a cone, in the middle of center-pole 5, lining 4 is housed, passes from valve seat 7, load onto three lobe pulling claws 3 at the frustum of a cone place of center-pole 5, fixed by elastic ring 2, the left end of center-pole 5 is threaded with pulling claw seat 1.Between nut 6 and valve seat 7, load onto hydraulic cylinder, play hydraulic pump, valve seat 7 can be taken out.
Claims (3)
1. a plunger displacement pump valve seat pull-out instrument, comprising: pulling claw seat (1), elastic ring (2), pulling claw (3), lining (4), center-pole (5), nut (6); It is characterized in that: center-pole (5) right-hand member of described plunger displacement pump valve seat pull-out instrument is provided with square toes, on the external screw thread of square toes the inside, nut (6) is housed, left end is provided with external screw thread, be provided with inwards the frustum of a cone, lining (4) is housed in the middle of center-pole (5), pulling claw (3) is equipped with at the frustum of a cone place of center-pole (5), and the left end of center-pole (5) is threaded with pulling claw seat (1).
2. plunger displacement pump valve seat pull-out instrument according to claim 1, is characterized in that: described pulling claw seat (1) is the superimposed body of cylinder and the frustum of a cone, and center is provided with internal thread through hole, and left end is vertically crossingly installed with pilot hole (C).
3. plunger displacement pump valve seat pull-out instrument according to claim 1, is characterized in that: described pulling claw (3) is three valve structures, and combination inner circle is the conical surface, and cylindrical is provided with groove, and elastic ring (2) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046259.5U CN203650419U (en) | 2014-01-25 | 2014-01-25 | Tool for pulling out plunger pump valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046259.5U CN203650419U (en) | 2014-01-25 | 2014-01-25 | Tool for pulling out plunger pump valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203650419U true CN203650419U (en) | 2014-06-18 |
Family
ID=50916855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420046259.5U Expired - Fee Related CN203650419U (en) | 2014-01-25 | 2014-01-25 | Tool for pulling out plunger pump valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203650419U (en) |
-
2014
- 2014-01-25 CN CN201420046259.5U patent/CN203650419U/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: 20140618 Termination date: 20150125 |
|
| EXPY | Termination of patent right or utility model |