CN203847040U - Well head protective mechanism with sealing difficulty - Google Patents
Well head protective mechanism with sealing difficulty Download PDFInfo
- Publication number
- CN203847040U CN203847040U CN201420271778.1U CN201420271778U CN203847040U CN 203847040 U CN203847040 U CN 203847040U CN 201420271778 U CN201420271778 U CN 201420271778U CN 203847040 U CN203847040 U CN 203847040U
- Authority
- CN
- China
- Prior art keywords
- balance cylinder
- base
- setting
- adjusting rod
- closing valve
- 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
Links
- 230000009979 protective mechanism Effects 0.000 title abstract 5
- 238000007789 sealing Methods 0.000 title abstract 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000001012 protector Effects 0.000 abstract description 4
- 230000003111 delayed effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model discloses a well head protective mechanism with a sealing difficulty. The mechanism comprises a cone body (1), a closing valve core (3), a balance piston (4), a closing valve base (5), a balance cylinder (6), a protective mechanism unit (8), a base (11) and an adjusting rod (12). The cone body (1) is disposed at the top end of the adjusting rod (12). The lower part of the adjusting rod (12) is connected to the balance piston (4). The bottom part of the balance piston (4) is connected to the balance cylinder (6). The bottom part of the balance cylinder (6) is disposed on the base (11). The top part of the balance cylinder (6) is further connected to the closing valve core (3). The periphery of the balance cylinder (6) is connected to the closing valve base (5). The top part of the closing valve base (5) is fixedly connected to the protective mechanism unit (8). With the above structure, the sealing time of the well head protective mechanism is delayed, the sealing frequency of the protector of the gas well in the normal production process is reduced, the well opening time rate is improved, and labor intensity of workers and production cost are reduced.
Description
Technical field
The utility model relates to oil gas well field, is specifically related to be difficult for setting wellhead protecting mechanism.
Background technology
The gas field development of pacifying the border region adopts high-pressure gas collection technique; well head unmanned; in long-term manufacturing process; impact due to various factors; well head and flow line potential damage the major hidden danger such as even break; for preventing the generation of serious accident, the gas field of pacifying the border region produces gas well need to install tree-protector.Tree-protector is one of important measures that ensure gas well production safety; under the normal condition of production; the setting frequent continuous and stable production of gas well of giving of tree-protector causes negative effect; the setting ratio of the improper closing well of gas well that causes of tree-protector is for successive years in 30% left and right; even if use good protector still cannot solve the setting problem frequently of protector; reduce rate while driving a well, increased employee's labour intensity and cost of production.
Utility model content
The utility model has overcome the deficiencies in the prior art; provide and be difficult for setting wellhead protecting mechanism, delayed the setting time of wellhead protecting mechanism, reduced gas well at the setting number of times of normal productive process protector; improve rate while driving a well, reduced employee's labour intensity and cost of production.
For solving above-mentioned technical problem, the utility model is by the following technical solutions: be difficult for setting wellhead protecting mechanism, comprise cone, close spool, dummy piston, close valve seat, balance cylinder, protection mechanism, base and adjusting rod, described cone is arranged on the top of adjusting rod, adjusting rod below is connected with dummy piston, dummy piston bottom connects balance cylinder, and balance cylinder bottom is arranged on base; The top of described balance cylinder is connection closed spool also, and the peripheral connection closed valve seat at balance cylinder, is fixedly connected with protection mechanism at the top of closing valve seat.
On the outer wall at described balance cylinder top, be symmetrically distributed with throttling valve.
Taper hole plate is installed at described protection mechanism top, and taper hole plate, for the top board of fixing top, is provided with gas feed in the both sides of top board.
The bottom of described base arranges gas vent.
The top of described cone is set to arcwall face.Be convenient to the operation in later stage.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model is installed dummy piston, balance cylinder and throttling valve in order to delay the setting time of well head mechanism in the bottom of closing spool, reduced the setting number of times that causes the improper closing well of gas well of well head mechanism, improve rate while driving a well, reduced employee's labour intensity and cost of production.
2, the setting of throttling valve can realize the size of gas flow is controlled, and the size of regulation output air-flow prevents that air-flow is excessive to this device generation impact, further avoids the situation of closing well head to occur.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model.
In figure, Reference numeral is expressed as: 1, cone; 2, gas feed; 3, close spool; 4, dummy piston; 5, close valve seat; 6, balance cylinder; 7, taper hole plate; 8, protection mechanism; 9, throttling valve; 10, gas vent; 11, base; 12, adjusting rod.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated, embodiment of the present utility model is not limited to this.
Embodiment:
As shown in Figure 1, the utility model comprises cone 1, closes spool 3, dummy piston 4, close valve seat 5, balance cylinder 6, protection mechanism 8, base 11 and adjusting rod 12, and the top of cone 1 is set to arcwall face.
The cone 1 of the present embodiment is arranged on the top of adjusting rod 12, and adjusting rod 12 belows are connected with dummy piston 4, and dummy piston 4 bottoms connect balance cylinder 6, and balance cylinder 6 bottoms are arranged on base 11, and the bottom of base 11 arranges gas vent 10.The top of the balance cylinder 6 of the present embodiment is connection closed spool 3 also, and the peripheral connection closed valve seat 5 at balance cylinder 6, is fixedly connected with protection mechanism 8 at the top of closing valve seat 5.On the outer wall at balance cylinder 6 tops wherein, be symmetrically distributed with throttling valve 9; Taper hole plate 7 is installed at protection mechanism 8 tops, and taper hole plate 7, for the top board of fixing top, is provided with gas feed 2 in the both sides of top board.
This device is realized automatically closing in emergency circumstances by shut off differential pressure is set, gas well under normal circumstances, base and be to keep opening-wide state between the balance cylinder above base, when high-pressure gas collection line fracture or occur abnormal conditions when gas leakage, the pressure of this device below reduces suddenly, pressure increase before and after this device, and then promotion balance cylinder, balance cylinder acts on the dummy piston of top, and then dummy piston acts on and cuts out spool, thereby makes gas cutout.This mechanism is not by direct Compress Spring, promotion valve body is closed valve seat and is realized gas cutout, in the bottom of closing spool, increase and dummy piston, balance cylinder and throttling valve are installed in order to delay the setting time of well head mechanism, reduced the setting number of times that causes the improper closing well of gas well of well head mechanism, improve rate while driving a well, reduced employee's labour intensity and cost of production.In addition, the setting of throttling valve can realize to be controlled the size of gas flow, and the size of regulation output air-flow prevents that air-flow is excessive to this device generation impact, avoids the situation of closing well head to occur.
Just can realize this utility model as mentioned above.
Claims (5)
1. be difficult for setting wellhead protecting mechanism, it is characterized in that: comprise cone (1), close spool (3), dummy piston (4), close valve seat (5), balance cylinder (6), protection mechanism (8), base (11) and adjusting rod (12), described cone (1) is arranged on the top of adjusting rod (12), adjusting rod (12) below is connected with dummy piston (4), dummy piston (4) bottom connects balance cylinder (6), and balance cylinder (6) bottom is arranged on base (11); The top of described balance cylinder (6) is connection closed spool (3) also, and the peripheral connection closed valve seat (5) at balance cylinder (6), is fixedly connected with protection mechanism (8) at the top of closing valve seat (5).
2. be according to claim 1ly difficult for setting wellhead protecting mechanism, it is characterized in that: on the outer wall at described balance cylinder (6) top, be symmetrically distributed with throttling valve (9).
3. be according to claim 1ly difficult for setting wellhead protecting mechanism; it is characterized in that: taper hole plate (7) is installed at described protection mechanism (8) top; taper hole plate (7), for the top board of fixing top, is provided with gas feed (2) in the both sides of top board.
4. be according to claim 1ly difficult for setting wellhead protecting mechanism, it is characterized in that: the bottom of described base (11) arranges gas vent (10).
5. be according to claim 1ly difficult for setting wellhead protecting mechanism, it is characterized in that: the top of described cone (1) is set to arcwall face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420271778.1U CN203847040U (en) | 2014-05-27 | 2014-05-27 | Well head protective mechanism with sealing difficulty |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420271778.1U CN203847040U (en) | 2014-05-27 | 2014-05-27 | Well head protective mechanism with sealing difficulty |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847040U true CN203847040U (en) | 2014-09-24 |
Family
ID=51560074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420271778.1U Expired - Fee Related CN203847040U (en) | 2014-05-27 | 2014-05-27 | Well head protective mechanism with sealing difficulty |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018799A (en) * | 2014-05-27 | 2014-09-03 | 成都来宝石油设备有限公司 | Well mouth protecting device |
-
2014
- 2014-05-27 CN CN201420271778.1U patent/CN203847040U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018799A (en) * | 2014-05-27 | 2014-09-03 | 成都来宝石油设备有限公司 | Well mouth protecting device |
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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: 20140924 Termination date: 20150527 |
|
| EXPY | Termination of patent right or utility model |