CN2516692Y - Pressure control valve - Google Patents
Pressure control valve Download PDFInfo
- Publication number
- CN2516692Y CN2516692Y CN 02204255 CN02204255U CN2516692Y CN 2516692 Y CN2516692 Y CN 2516692Y CN 02204255 CN02204255 CN 02204255 CN 02204255 U CN02204255 U CN 02204255U CN 2516692 Y CN2516692 Y CN 2516692Y
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- sand
- retention device
- control 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
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Abstract
The utility model relates to a pressure control valve used in the mechanical oil production in oil fields, comprising an oil outlet joint, a communication board, a spring shaft, a spring, a valve base, a valve ball and an oil inlet joint. The utility model is characterized in that the upper part of the valve is connected with an oil production equipment, and the lower part is connected with a sand retention device; the oil inlet joint is provided with two oil inlet channels, and one channel is communicated with the sand retention device, and the other channel is plugged up at normal oil production; the oil flow enters the pressure control valve from outside the sand retention device at normal oil production; the oil flow enters the pressure control valve from the central lateral face of the valve after the sand retention device is jammed by the sand, presses the spring under pressure and open the other channel, then the oil production can be carried on. The utility model has the advantages that: after the sand retention device is jammed by the sand in a sandy oil well, the designed pressure control valve is opened under pressure, and another oil flow channel is formed and ensures the continued oil production of the oil well; the utility model can avoid the problem that the oil well cannot output oil and then need exchange a sand retention device because the sand retention device is jammed, reduce the downtime of the oil well and increase the economic benefit of exploitation.
Description
One, technical field
The utility model belongs to the pressure-control valve that oil field machinery oil is used.
Two, background technology
In oil field machinery oil, because oil mining intensity is big, cause formation sand production, it is fast that formation sand production damages pumping unit, for fear of the damage of shaking out to oil production equipment, often adopt the way that sand device is installed under oil production equipment, outside oil production equipment, make it avoid the damage of sand grains on the sand grains retaining oil production equipment.But sand device is by very little slit oil-feed, the sand device slit often occurs by the sand grains blocking problem, causes oil well not fuel-displaced.
Three, summary of the invention
The purpose of this utility model is a kind of pressure-control valve of design, its sand device under sand well is stopped up by sand grains after, the pressure-control valve of design is opened under pressure, forms oil flow channel, guarantees that oil well can continue oil recovery.
The purpose of this utility model is achieved in that it is made up of delivery connection, UNICOM's plate, spring shaft, spring, valve seat, valve ball, fuel inlet fitting.UNICOM's plate, spring shaft, valve seat, valve ball are installed in the delivery connection, and UNICOM's plate is under the screw thread of delivery connection top, and insert in UNICOM's plate on spring shaft top, and spring housing is contained on the spring shaft, and the valve ball seat is on valve seat, and the spring shaft bottom is on the valve ball.The valve seat bottom is connected on the minor thread of fuel inlet fitting top, and the delivery connection bottom connects inlet valve top major thread.
When going into the well, pressure-control valve top connects with oil production equipment, and the pressure-control valve bottom connects with sand device.Fuel inlet fitting has two oil inlet passages, and a passage is the oil flow channel when normally recovering the oil, and its bottom communicates with sand device; Another passage is the side oil inlet passage at fuel inlet fitting middle part, and when normal the oil recovery, the valve ball on this passage is plugged under spring action.Therefore, oil stream enters pressure-control valve outside sand device when normal the oil recovery, again by the oil production equipment extraction on top.After sand device was stopped up by sand grains, oil stream just entered from side, pressure-control valve middle part, compresses spring under pressure, and valve ball is lifted off a seat, and another passage is opened, and oil well can continue to recover the oil.
The beneficial effects of the utility model are, after sand device under the sand well is stopped up by sand grains, the pressure-control valve of design is opened under pressure, form another oil flow channel, guarantee that oil well can continue to recover the oil, can not occur to reduce the oil well off-time because of the blocked back of sand device oil well does not go out the problem that sand device is changed in the oil require operation, prolong the oil well production time, improve the exploiting economy benefit.
Four, description of drawings
Accompanying drawing is the sectional arrangement drawing of the utility model embodiment.
Among the figure: the 1st, delivery connection, the 2nd, UNICOM's plate, the 3rd, spring shaft, the 4th, spring, the 5th, valve seat, the 6th, valve ball, the 7th, fuel inlet fitting.
Five, the specific embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described.
It is made up of delivery connection 1, UNICOM's plate 2, spring shaft 3, spring 4, valve seat 5, valve ball 6, fuel inlet fitting 7.UNICOM's plate 2, spring shaft 3, spring 4, valve seat 5, valve ball 6 are installed in the delivery connection 1, UNICOM's plate 2 is under the delivery connection 1 top screw thread, and insert in UNICOM's plate 2 on spring shaft 3 tops, and spring 4 is sleeved on the spring shaft 3,6 of valve balls are on valve seat 5, and spring shaft 3 bottoms are on the valve ball 6.Valve seat 5 bottoms are connected on the fuel inlet fitting 7 top minor threads, and delivery connection 1 bottom connects inlet valve 7 top major threads.
When going into the well, pressure-control valve top connects with oil production equipment, and the pressure-control valve bottom connects with sand device.Fuel inlet fitting 7 has two oil inlet passages, and the B among passage such as the figure is the oil flow channel when normally recovering the oil, and its bottom communicates with sand device; A among another passage such as the figure is the side oil inlet passage at fuel inlet fitting 7 middle parts, and when normal the oil recovery, the valve ball 6 on this passage is plugged under spring 4 effects.Therefore, oil stream enters pressure-control valve outside sand device when normal the oil recovery, after channel B, again by the oil production equipment extraction on top.After sand device was stopped up by sand grains, oil stream just entered pressure-control valve from passage A, compresses spring 4 under pressure, makes valve ball 6 lift off a seat 5, and another passage A opens, and oil well can continue to recover the oil.
Claims (1)
1, the pressure-control valve that a kind of oil field machinery oil is used, by delivery connection 1, UNICOM's plate 2, spring shaft 3, spring 4, valve seat 5, valve ball 6, fuel inlet fitting 7 is formed, it is characterized in that: UNICOM's plate 2 is installed in the delivery connection 1, spring shaft 3, spring 4, valve seat 5, valve ball 6, UNICOM's plate 2 is under the delivery connection 1 top screw thread, insert in UNICOM's plate 2 on spring shaft 3 tops, spring 4 is sleeved on the spring shaft 3,6 of valve balls are on valve seat 5, spring shaft 3 bottoms are on the valve ball 6, valve seat 5 bottoms are connected on the fuel inlet fitting 7 top minor threads, and delivery connection 1 bottom connects inlet valve 7 top major threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02204255 CN2516692Y (en) | 2002-01-24 | 2002-01-24 | Pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02204255 CN2516692Y (en) | 2002-01-24 | 2002-01-24 | Pressure control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2516692Y true CN2516692Y (en) | 2002-10-16 |
Family
ID=33686234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02204255 Expired - Fee Related CN2516692Y (en) | 2002-01-24 | 2002-01-24 | Pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2516692Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545554B (en) * | 2008-03-24 | 2011-04-13 | 浙江三花汽车控制***有限公司 | Pressure control valve |
-
2002
- 2002-01-24 CN CN 02204255 patent/CN2516692Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545554B (en) * | 2008-03-24 | 2011-04-13 | 浙江三花汽车控制***有限公司 | Pressure control valve |
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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 |