CN2773307Y - Adjuster of circular free cover pressure discharge valve of pumping well - Google Patents
Adjuster of circular free cover pressure discharge valve of pumping well Download PDFInfo
- Publication number
- CN2773307Y CN2773307Y CN 200520022712 CN200520022712U CN2773307Y CN 2773307 Y CN2773307 Y CN 2773307Y CN 200520022712 CN200520022712 CN 200520022712 CN 200520022712 U CN200520022712 U CN 200520022712U CN 2773307 Y CN2773307 Y CN 2773307Y
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- Prior art keywords
- spiral
- spiral tube
- barrel
- screw
- sleeve
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- Expired - Fee Related
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Abstract
The utility model relates to an adjuster of a circular free cover pressure discharge valve of a pumping well. An extension sleeve barrel is fixed with a fixed seat by screws, a spiral rod is connected with a spiral sleeve barrel through threads and a square shape is arranged on the spiral rod to be inserted into a square hole of a hand wheel. The end part of a spiral barrel is fixed with the end part of another spiral barrel by screws; a balance hole and a balance groove are arranged on each spiral barrel, and a long groove is arranged on each spiral barrel. A screw is matched with a spiral buckle hole of the extension sleeve barrel to pass through the extension sleeve barrel, the end part of the screw is inserted into the long groove of each spiral barrel to prevent each spiral barrel from rotating and the length range of the long groove is 100 mm. The hand wheel is clockwise rotated, a spring is tightly pressed by the spiral rod, and the air discharging pressure of an air discharging valve is enlarged; the hand wheel is counterclockwise rotated, the spiral rod is far away from the spring and the air discharging pressure of the air discharging valve is reduced. The regulating range of the spiral rod is 100 mm, and the spring can be fully pressed tightly or can be fully released within the regulating range of the spiral rod.
Description
Technical field
The utility model relates to a kind of pumpingh well annular space casing pressure vent valve adjusting device.
Background technology
When the annular space casing pressure in the pumpingh well is high, can influence the coefficient of fullness of oil well pump, reduce oil well pump efficient.So prior art is that a single-way gas-discharge control valve is arranged on the sleeve pipe muff, adjust the decrement (and compressing force) of the spring of valve, can control the highest certain certain value that is no more than of air pressure in the oil jacket annular space.The adjustment of the spring of valve is in the past cumbersome, and is difficult to accurate controlled pressure.
The utility model content
The purpose of this utility model is to improve the shortcoming of prior art and a kind of pumpingh well annular space casing pressure vent valve adjusting device is provided.The utility model had both adopted a mechanical speed-control device, guarantee handled easily, adjust safe and reliable.
For achieving the above object, the utility model is taked following design scheme: structure of the present utility model, comprise holder, and handwheel, screw rod, the spiral tube, spiral tube end prolongs sleeve.Prolong sleeve and holder and be screwed, its effect is the guiding to the spiral tube, and prolonging sleeve is matched in clearance with cooperating of spiral tube, and thread barrel can prolong sleeve relatively and slide.Screw rod is to be threaded with screw sheel, and the shape in four directions is arranged above the screw rod, inserts in the cubic hole of handwheel.Spiral tube and spiral tube end are screwed.Balance pipe and compensating groove are arranged on the spiral tube, and effect is the inside and outside pressure of balance spiral tube.Also have an elongated slot on the spiral tube, have screw to cooperate and pass the prolongation sleeve with the spiral shell button hole that prolongs sleeve, the elongated slot of the end reeve spiral tube of screw, its effect is to prevent the rotation of spiral tube, the length range 100mm of elongated slot.
Clockwise rotate handwheel, the screw rod holddown spring, the blow off pressure of vent valve strengthens, and rotates counterclockwise handwheel, and screw rod is away from spring, and the blow off pressure of vent valve reduces.The screw rod adjustable range is 100mm, can kill spring fully in this scope or decontrol fully.
The utility model has the advantages that: can realize the adjusting of pressure easily, easy for installation, safe and practical.
Description of drawings
Fig. 1 represents schematic diagram of the present utility model;
Fig. 2 represents adjusting schematic diagram of the present utility model;
Fig. 3 represents adjusting schematic diagram of the present utility model.
The specific embodiment
Embodiment 1: as shown in Figure 1, the structural representation of this adjusting device of the utility model is as follows, comprises holder 3, handwheel 1, and screw rod 2, spiral tube 7, spiral tube end 5 prolongs sleeve 4.It is fixing with holder 3 usefulness screws 16 to prolong sleeve 4, at least 2 screws; Its effect is the guiding to spiral tube 7, and prolonging sleeve 4 is matched in clearance with cooperating of spiral tube 7, and thread barrel 7 can prolong sleeve 4 relatively and slide.Screw rod 2 is to be threaded with spiral tube 7, and the shape in four directions is arranged above the screw rod 2, inserts in the cubic hole of handwheel 1.Spiral tube 7 is fixing with spiral tube end 5 usefulness screws 6.Balance pipe 8 and compensating groove 20 are arranged on the spiral tube 7, and effect is the pressure inside and outside the balance spiral tube 7.Also have an elongated slot 14 on the spiral tube 7, have screw 17 to cooperate with the spiral shell button hole that prolongs sleeve 4 and pass and prolong sleeve 4, the elongated slot 14 of spiral tube 7 is injected in the end of screw 17, and its effect is to prevent that spiral tube 7 from rotating the length range 100mm of elongated slot 14.Or be 100mm with the stroke of the length of elongated slot 14 control screw rod 2 and spiral tube end 5, hold-down nut 15 is handwheel 1 fixedly.
Fig. 2 represents adjusting schematic diagram of the present utility model; Expression spiral tube 7 is in the home position; Fig. 3 represents adjusting schematic diagram of the present utility model, the position of expression spiral tube 7 elongations.
Embodiment 1: as shown in Figure 1, the excircle of holder 3 is that taper thread is threaded with splicing sleeve annular space cover 13, and spiral tube end 5 withstands on the vent valve push rod 9, and vent valve push rod 9 injects in the vent valve 10 and contacts with spring 10.
Claims (2)
1, a kind of pumpingh well annular space casing pressure vent valve adjusting device, it is characterized in that: comprise holder, handwheel, screw rod, the spiral tube, spiral tube end prolongs sleeve, prolonging sleeve and holder is screwed, prolonging sleeve is matched in clearance with cooperating of spiral tube, and screw rod is to be threaded with screw sheel, and the shape in four directions is arranged above the screw rod, insert in the cubic hole of handwheel, spiral tube and spiral tube end are screwed, and balance pipe and compensating groove are arranged on the spiral tube, and an elongated slot is arranged on the spiral tube, there is screw to cooperate and passes the prolongation sleeve, the elongated slot of the end reeve spiral tube of screw with the spiral shell button hole that prolongs sleeve.
2, a kind of pumpingh well annular space casing pressure vent valve adjusting device according to claim 1, it is characterized in that: the length of elongated slot is 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520022712 CN2773307Y (en) | 2005-01-07 | 2005-01-07 | Adjuster of circular free cover pressure discharge valve of pumping well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520022712 CN2773307Y (en) | 2005-01-07 | 2005-01-07 | Adjuster of circular free cover pressure discharge valve of pumping well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2773307Y true CN2773307Y (en) | 2006-04-19 |
Family
ID=36708571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520022712 Expired - Fee Related CN2773307Y (en) | 2005-01-07 | 2005-01-07 | Adjuster of circular free cover pressure discharge valve of pumping well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2773307Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147722A (en) * | 2013-03-08 | 2013-06-12 | 中国石油集团渤海钻探工程有限公司 | Underground remote control sliding sleeve opening or closing device |
-
2005
- 2005-01-07 CN CN 200520022712 patent/CN2773307Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147722A (en) * | 2013-03-08 | 2013-06-12 | 中国石油集团渤海钻探工程有限公司 | Underground remote control sliding sleeve opening or closing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |