CN201190551Y - Natural gas emergency automatic cutting protection arrangement at oilfield wellhead - Google Patents
Natural gas emergency automatic cutting protection arrangement at oilfield wellhead Download PDFInfo
- Publication number
- CN201190551Y CN201190551Y CNU200820028870XU CN200820028870U CN201190551Y CN 201190551 Y CN201190551 Y CN 201190551Y CN U200820028870X U CNU200820028870X U CN U200820028870XU CN 200820028870 U CN200820028870 U CN 200820028870U CN 201190551 Y CN201190551 Y CN 201190551Y
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- China
- Prior art keywords
- natural gas
- valve
- component
- oil field
- automatic cutting
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- 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 the technical field of the oil field well head natural gas shutting-off protection equipment, particularly relates to an oil field well head natural gas emergency automatic shutting-off protection device. For overcoming the problems of the prior art of slow valve closing and poor shutting-off protection effect, the utility model provides the technical proposals that the oil field well head natural gas emergency automatic shutting-off protection device comprises a shell, a valve movement component, a manual control component and an electric control component. The manual control component comprises a big hand wheel. The valve movement component comprises a silk pole and a valve rod, and also comprises a location sleeve and a manual clutch component. The big hand wheel is connected with the manual clutch component by the location sleeve, and the manual clutch component comprises a clutch sleeve; the valve movement component also comprises a rapid valve closing component arranged at the lower part of the valve rod and a T-shaped nut arranged at the outer side of the silk pole. The utility model has the advantages that: 1. the closing is rapid; 2. the function is comprehensive; 3. the application range is wide; 4. the cost is low.
Description
Affiliated technical field:
The utility model relates to gases at high pressure safety cut-off resist technology field, is specifically related to a kind of oil field shaft mouth natural gas automatic cutting in emergency protective device.
Background technology:
When current limiter under the oil field shaft mouth natural gas well breaks down and causes pressure medium to raise suddenly or reduce and when making gas pipeline abnormal conditions occur; in order to guarantee the safety of whole system, this device need be installed at the well head place gas medium in the pipeline is carried out emergency cut-off and protection.
See in the market super/under-voltage automatic tripping protection device kind seldom; usually form by valve body action component, manual Control Component and electro-pneumatic interlock Control Component three parts; but, in production practices, be not widely used because design is unreasonable.Generally also all be pure man-operated mechanism at the widely used tripping protection device of oil wells in field at present; its valve body action component comprises the valve rod that is provided with in screw mandrel and the screw mandrel; big handwheel is connected in screw mandrel top; the big handwheel rotation of manually-operated during adjustment; the action of drive screw mandrel; valve rod moves up and down with screw mandrel, and the spool that connects with valve rod moves up to carry out and drives valve or move down the pass valve.Its shortcoming is that valve closing is too slow, can not quick closedown when anomaly occurring, and the effect of tripping protection is undesirable.
Summary of the invention:
The utility model technology is that a kind of oil field shaft mouth natural gas automatic cutting in emergency protective device will be provided, to overcome too slow, the unfavorable problem of tripping protection effect of valve closing that prior art exists.
For overcoming the problem that prior art exists, the technical scheme that the utility model provides is: a kind of oil field shaft mouth natural gas automatic cutting in emergency protective device, comprise shell, valve body action component, manual Control Component and electronic Control Component, comprise big handwheel 5 in the described manual Control Component, comprise screw mandrel 7 and valve rod 11 in the valve body action component, its special character is: described manual Control Component also comprises positioning sleeve 4 and manual clutch assembly, big handwheel 5 is connected with the manual clutch assembly by positioning sleeve 4, comprises clutch cover 3 in the manual clutch assembly; Described valve body action component also comprises the quick pass valve module that valve rod 11 bottoms are provided with and is arranged at the T type nut 8 in screw mandrel 7 outsides, is connected for detachable embedding between the clutch cover 3 on this T type nut 8 and top.
Above-mentioned quick pass valve module can be made up of pin 12 and the spring 14 that is set on the valve rod 11.Spring 14 is arranged in the valve body 13, and pin 12 can be arranged on shell or the valve body 13, is used for fixing the position of valve rod.
Above-mentioned quick pass valve module can be the weight structure.
Above-mentioned screw mandrel 7 arranged outside have the gathering sill 10 of remaining silent up and down, and the positive stop 9 that is fixed on the shell is arranged in the gathering sill 10.
Above-mentioned valve rod 11 slides and is arranged in the screw mandrel 7, and the upper end of screw mandrel 7 is provided with the stroke adjuster 6 that is connected with valve rod 11.
Above-mentioned electronic Control Component comprises bearing 2 that is arranged at T type nut 8 outsides and the gear of establishing at T type nut 8 outer rings 1, and this gear 1 is connected with action component.Said action component can comprise a lot of forms, as long as the structure of gear 1 action all can be adopted, the control of action component can be artificial or electronic control, also can realize remote auto control when adopting electronic control.
Compared with prior art, the utility model has the advantages that:
1, quick closedown: it is slow that the utility model is driven valve, but it is fast to close valve speed, can (valve-off in 0.2～0.5s) can satisfy the purpose of emergency cut-off safely and fast in the shortest time when anomaly occurring.
2, complete function: can make the translation function that the utlity model has electric/manual by operator dynamic clutch assembly, safety is more secure.
3, applied widely: the valve that various screw mandrels drive all can adopt this structure, can promote the pass valve speed of common artificial operated valve, can repack common artificial operated valve into the remote auto by-pass valve control simultaneously.
4, cost is low: the utility model is simple and reasonable for structure, and operation is simple, and performance is safe and reliable, is easy to safeguard.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
Description of reference numerals is as follows:
The 1-gear, 2-bearing, 3-clutch cover, 4-positioning sleeve, the big handwheel of 5-, 6-stroke adjuster, 7-screw mandrel, 8-T type nut, 9-positive stop, 10-gathering sill, 11-valve rod, 12-pin, 13-valve body, 14-spring.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is described in detail.
A kind of oil field shaft mouth natural gas automatic cutting in emergency protective device; comprise shell, valve body action component, manual Control Component and electronic Control Component; comprise big handwheel 5, positioning sleeve 4 and manual clutch assembly in the described manual Control Component; big handwheel 5 is connected with the manual clutch assembly by positioning sleeve 4, comprises clutch cover 3 in the manual clutch assembly.Comprise quick pass valve module that screw mandrel 7, valve rod 11, valve rod 11 bottoms are provided with and the T type nut 8 that is arranged at screw mandrel 7 outsides in the said valve body action component, valve rod 11 slides and is arranged in the screw mandrel 7, the upper end of screw mandrel 7 is provided with the stroke adjuster that is connected with valve rod 11, and the stroke adjuster is common screw rod governor motion; Be connected for detachable embedding between the clutch cover 3 on T type nut 8 and top; Close valve module fast and be made up of pin 12 and the spring 14 that is set on the valve rod 11, spring 14 is set in the valve body 13, and pin 12 is connected on the valve body 13; In screw mandrel 7 arranged outside the gathering sill 10 of remaining silent is up and down arranged, the positive stop 9 that is fixed on the shell is arranged in the gathering sill 10.Said electronic Control Component comprises bearing 2 that is arranged at T type nut 8 outsides and the gear of establishing at T type nut 8 outer rings 1, and this gear 1 is connected with electric assembly, and said electric assembly can comprise motor and electronic clutch handle.
In the time of need opening valve, as long as T type nut 8 is turned clockwise, just screw mandrel 7 moves upward along straight line, valve rod 11 moves upward thereupon, makes spool leave valve port---drive valve.Valve rod 11 rises with screw mandrel 7, when positive stop 9 blocks the lower end of gathering sill 10 on the screw mandrel 7, valve rod 11 bottoms is fixed on the valve body 13 with pin 12, and valve rod 11 is positioned, and can not descend spring 14 compress energy storage; At this moment make 8 reverse rotations of T type nut again, screw mandrel 7 is descending, stops after going downwards to a certain degree, drives valve and finishes.The upper end of gathering sill 10 can prevent that screw mandrel 7 from revolving and tries to shirk responsibility on the screw mandrel 7.
The action of said T type nut 8 can independently be finished respectively by manual Control Component and electronic Control Component, realizes the control conversion by operator dynamic clutch assembly.
When needing to close valve, draw back pin 12, valve rod 11 is descending fast under the effect of spring 14, the rapid closed gate of spool---close valve.
Claims (6)
1, a kind of oil field shaft mouth natural gas automatic cutting in emergency protective device, comprise shell, valve body action component, manual Control Component and electronic Control Component, comprise big handwheel (5) in the described manual Control Component, comprise screw mandrel (7) and valve rod (11) in the valve body action component, it is characterized in that: described manual Control Component also comprises positioning sleeve (4) and manual clutch assembly, big handwheel (5) is connected with the manual clutch assembly by positioning sleeve (4), comprises clutch cover (3) in the manual clutch assembly; Described valve body action component also comprises the quick pass valve module that valve rod (11) bottom is provided with and is arranged at the T type nut (8) in screw mandrel (7) outside, is connected for detachable embedding between the clutch cover (3) on this T type nut (8) and top.
2, oil field shaft mouth natural gas automatic cutting in emergency protective device as claimed in claim 1 is characterized in that: described quick pass valve module is made up of pin (12) and the spring (14) that is set on the valve rod (11).
3, oil field shaft mouth natural gas automatic cutting in emergency protective device as claimed in claim 1, it is characterized in that: described quick pass valve module is the weight structure.
4, as claim 1 or 2 or 3 described oil field shaft mouth natural gas automatic cutting in emergency protective devices; it is characterized in that: described screw mandrel (7) arranged outside has the gathering sill (10) of remaining silent up and down, and the positive stop (9) that is fixed on the shell is arranged in the gathering sill (10).
5, oil field shaft mouth natural gas automatic cutting in emergency protective device as claimed in claim 4 is characterized in that: described valve rod (11) slides and is arranged in the screw mandrel (7), and the upper end of screw mandrel (7) is provided with the stroke adjuster (6) that is connected with valve rod (11).
6, oil field shaft mouth natural gas automatic cutting in emergency protective device as claimed in claim 5; it is characterized in that: described electronic Control Component comprises bearing (14) that is arranged at T type nut (8) outside and the gear of establishing at T type nut (8) outer ring, and this gear is connected with action component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820028870XU CN201190551Y (en) | 2008-04-16 | 2008-04-16 | Natural gas emergency automatic cutting protection arrangement at oilfield wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820028870XU CN201190551Y (en) | 2008-04-16 | 2008-04-16 | Natural gas emergency automatic cutting protection arrangement at oilfield wellhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201190551Y true CN201190551Y (en) | 2009-02-04 |
Family
ID=40334711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820028870XU Expired - Fee Related CN201190551Y (en) | 2008-04-16 | 2008-04-16 | Natural gas emergency automatic cutting protection arrangement at oilfield wellhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201190551Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147717A (en) * | 2013-01-31 | 2013-06-12 | 陕西航天泵阀科技集团有限公司 | Emergency cutoff valve |
| CN103697218A (en) * | 2014-01-07 | 2014-04-02 | 天津贝特尔流体控制阀门有限公司 | Safety shut-off valve director integrating functions of overpressure, voltage shortage, manual operation and long-range control |
-
2008
- 2008-04-16 CN CNU200820028870XU patent/CN201190551Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147717A (en) * | 2013-01-31 | 2013-06-12 | 陕西航天泵阀科技集团有限公司 | Emergency cutoff valve |
| CN103147717B (en) * | 2013-01-31 | 2015-12-16 | 陕西航天泵阀科技集团有限公司 | A kind of quick action emergency valve |
| CN103697218A (en) * | 2014-01-07 | 2014-04-02 | 天津贝特尔流体控制阀门有限公司 | Safety shut-off valve director integrating functions of overpressure, voltage shortage, manual operation and long-range control |
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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: 20090204 Termination date: 20140416 |