CN203614069U - Hydraulic packing box of well head of oil pumping well - Google Patents
Hydraulic packing box of well head of oil pumping well Download PDFInfo
- Publication number
- CN203614069U CN203614069U CN201320145649.3U CN201320145649U CN203614069U CN 203614069 U CN203614069 U CN 203614069U CN 201320145649 U CN201320145649 U CN 201320145649U CN 203614069 U CN203614069 U CN 203614069U
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- CN
- China
- Prior art keywords
- packing box
- packing
- main body
- box main
- well
- 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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- Sealing Devices (AREA)
Abstract
The utility model discloses a hydraulic packing box of a well head of an oil pumping well. The packing box is characterized in that an annular hydraulic cylinder is arranged outside a packing box body; during normal work, a rotary piston extrudes hydraulic oil in a piston cylinder; and pressure is transmitted to the radial direction of packing via a guide press hole and a foam metal ring; the packing is compressed in the radial direction. Therefore, the utilization rate of the packing can be increased; the replacing period of the packing is prolonged; and labor intensity of workers is reduced.
Description
Technical field:
The utility model belongs to oil extraction in oil field field production wellhead accessory used, especially a kind of pumping well head hydraulic pressure packing box.
Background technology:
In oil extraction in oil field process, production wellhead is connected with oil pipe and sleeve pipe at present, is to control subsurface pressure and output crude oil, is connected on the ground with petroleum pipeline, for oil pumper provides and oil well pump connector, packing box is installed on connector simultaneously.And the packing box of installing on production wellhead is at present integrated the cylindric of sealing, sealing is to screw the packing compressing in packing box by the pressure cap of packing box upper end to realize, cannot push diametrically packing, the application life of packing is short, and then makes its replacement cycle short, and the gap between sucker rod and packing is very little simultaneously, maintenance personal needs frequent maintenance at ordinary times, in the time changing packing, waste time and energy, inefficiency, impact is normally produced.
Utility model content:
In order to overcome the deficiency that existing packing kit packing life cycle is short and waste time and energy, the utility model provides a kind of hydraulic pressure packing box, and the high pressure liquid force feed that this hydraulic pressure packing box produces by the annular hydraulic cylinder of packing box outside is pushed packing diametrically.
The technical scheme that the utility model is taked is: this hydraulic pressure packing box, comprise packing box main body, gland for packing box, annular piston, foam metal ring, packing box main body and gland for packing box screw thread, there is cannelure packing box main body outside, coordinate with annular piston for annular hydraulic cylinder, annular piston top has screw thread to be connected with packing box main body, in packing box main body, has pressure guide hole, and packing box body interior is equipped with foam metal ring.
The beneficial effect the utlity model has is: owing to taking such scheme, hydraulic oil when normal work in rotary-piston extrusion piston cylinder, by pressure guide hole and foam metal ring, pressure is delivered in to packing footpath upwards, compress diametrically packing, the one, can play automatic deflection adjusting function, the 2nd, can make the utilization rate of packing improve, extend the packing replacing cycle, alleviate labor strength.
Accompanying drawing explanation:
Accompanying drawing is the utility model structure sectional view.
1-packing box main body in figure, 2-gland for packing box, 3-annular piston, 4-foam metal ring.
The specific embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Shown in accompanying drawing, this hydraulic pressure packing box comprises packing box main body 1, gland for packing box 2, annular piston 3, foam metal ring 4, there is cannelure 9 packing box main body 1 outside, coordinate with annular piston 3 for annular hydraulic cylinder, annular piston 3 tops have screw thread to be connected with packing box main body 1, packing box main body 1 inside again with gland for packing box 2 screw threads, in packing box main body 1, have pressure guide hole 8, packing box main body 1 inside is equipped with foam metal ring 4.Hydraulic oil in rotary-piston compression cylinder when normal work, by pressure guide hole 8 and foam metal ring 4, the oil pressure of generation acts radially on packing 5, can make the utilization rate of packing 5 improve, and has extended the packing replacing cycle.
Claims (2)
1. a pumping well head hydraulic pressure packing box, comprise packing box main body (1), gland for packing box (2), annular piston (3), packing box main body (1) and gland for packing box (2) screw thread, it is characterized in that, there is cannelure (9) packing box main body (1) outside, coordinate with annular piston (3) for annular hydraulic cylinder, annular piston (3) top has screw thread to be connected with packing box main body (1), has pressure guide hole (8) in packing box main body (1).
2. a kind of pumping well head hydraulic pressure packing box according to claim 1, is characterized in that, described packing box main body (1) inside is equipped with foam metal ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320145649.3U CN203614069U (en) | 2013-02-28 | 2013-02-28 | Hydraulic packing box of well head of oil pumping well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320145649.3U CN203614069U (en) | 2013-02-28 | 2013-02-28 | Hydraulic packing box of well head of oil pumping well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614069U true CN203614069U (en) | 2014-05-28 |
Family
ID=50766721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320145649.3U Expired - Fee Related CN203614069U (en) | 2013-02-28 | 2013-02-28 | Hydraulic packing box of well head of oil pumping well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316879A (en) * | 2018-04-08 | 2018-07-24 | 王尧 | One kind filling in the energy-saving wellhead sealing device of formula |
-
2013
- 2013-02-28 CN CN201320145649.3U patent/CN203614069U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316879A (en) * | 2018-04-08 | 2018-07-24 | 王尧 | One kind filling in the energy-saving wellhead sealing device of formula |
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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: 20140528 Termination date: 20150228 |
|
| EXPY | Termination of patent right or utility model |