CN2654900Y - Travelling strong opening valve - Google Patents
Travelling strong opening valve Download PDFInfo
- Publication number
- CN2654900Y CN2654900Y CN 200320106987 CN200320106987U CN2654900Y CN 2654900 Y CN2654900 Y CN 2654900Y CN 200320106987 CN200320106987 CN 200320106987 CN 200320106987 U CN200320106987 U CN 200320106987U CN 2654900 Y CN2654900 Y CN 2654900Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- travelling
- internal diameter
- diameter
- 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 forced-opening traveling valve, comprising a valve body, a valve core and a valve rod. The utility model is characterized in that the valve body is of cylinder shape; pin threads are arranged at the upper part of the valve body; a displacement restrictor of the valve rod is arranged in the cylinder under the pin threads; a plurality of flute-shaped oil grooves are arranged on the inner wall of the cylinder under the displacement restrictor. A valve core sealing cavity is arranged from the lower end of the oil groove to the lower end of the cylinder; the valve core is of cylinder shape; a valve rod connecting hole is arranged in the middle of the valve core; and the lower end of the valve rod is inserted into the valve rod connecting hole of the valve core through the displacement restrictor of the valve rod and fixed by a nut.
Description
One, technical field
The utility model relates to the travelling valve strong opening valve on a kind of oil well pump piston.
Two, background technique
At present, beam well in process of production, especially vaccuum phenomenon takes place in oil-gas ratio big well often, pumping unit work is very normal outwardly, is actually to be in sky and to take out state.The main cause that causes this phenomenon is after rock gas enters pump barrel, can not open the travelling valve on the piston, and collection is many more more in pump barrel for rock gas.Gas is compressible, when descent of piston, gas is compressed, and when going downwards to the dead point, does not have to form the pressure of opening travelling valve, during piston stroking upward, gas expands, and can not form low pressure area in the pump barrel, and the standing valve on the pump barrel is not opened, the oil of oil reservoir does not advance pump barrel, so each stroke of oil well pump is that sky is taken out.In addition, if being gas, bottom, the pump barrel internal upper part is oil, during descent of piston, fast in gas section downstream rate, to liquid segment outstanding slow down (liquid is incompressible), moment at the contact liquid level can form " liquid hammer ", and the momentum of liquid hammer is very big, and meeting be hit sucker rod curved or be severed, or the screw thread of oil pipe pulled, cause leakage of oil, can cause the stopping production well workover, directly influence the ordinary production of pumping well.
Three, summary of the invention
The utility model is for overcoming existing the problems referred to above in the pumping well production, designing a kind of travelling valve strong opening valve.Solve the problem of pumping well " sky is taken out " and " liquid hammer ".
The technical solution of the utility model realizes in the following manner:
The utility model is made up of valve body, spool and valve rod, it is characterized in that valve body is cylindrical, the top of valve body is provided with male thread, be provided with the valve rod snubber in the following tube of male thread, the bottom cylinder inner wall of snubber is provided with the logical oil groove of some roads groove shaped, and lower end to the cylinder lower end of logical oil groove is provided with the seal spool chamber, spool is cylindrical, be provided with valve rod attachment hole in the middle of it, the valve rod attachment hole of spool is vertically inserted by the valve rod snubber in the underpart of valve rod, by fixed by nut.
The top internal diameter of valve body is greater than the middle part internal diameter, logical oil groove top internal diameter less than logical oil groove at the bottom of internal diameter, logical oil groove top internal diameter equals lower piston chamber internal diameter;
Valve rod is cylindrical, and upper diameter is greater than the middle part diameter, and the middle part diameter is greater than the underpart diameter, and the valve rod top is provided with acute angle bevel;
Valve rod snubber and valve body are made as one, and its center is provided with the hole that is slightly larger than valve rod middle part diameter, and the periphery of bore dia evenly is provided with several oil throughs.
The utility model is reasonable in design, simple in structure, has thoroughly solved " finding time " and " liquid hammer " problem of pumping well.By travelling valve list sealing becoming double-sealing.Improved the pump efficiency of oil well pump, reduced the well workover number of times, the rate during production that improved pumping well has been saved workover cost.
Four, description of drawings
The structural representation of Fig. 1-travelling valve strong opening valve;
Among Fig. 2-Fig. 1 A-A to sectional view.
1-valve body 2 valve rod 3-spool 4-nut 5-fixing pins
Five, embodiment
For further disclosing the technical solution of the utility model,, be described in detail by embodiment below in conjunction with Figure of description:
The utility model is made up of valve body 1, spool 3 and valve rod 2, it is characterized in that valve body 1 is cylindrical, the top of valve body is provided with male thread, be provided with the valve rod snubber in the following tube of male thread, the bottom circle inwall of snubber is provided with the logical oil groove of some roads groove shaped, and lower end to the cylinder lower end of logical oil groove is provided with spool 3 Seal cages, spool 3 is cylindrical, be provided with valve rod 2 attachment holes in the middle of it, the logical valve rod snubber in the underpart of valve rod 2 vertically inserts the valve rod attachment hole of spool, and is fixing by nut 4 and fixing pin 5.
In use, the male thread of travelling valve strong opening valve is screwed on the box thread of travelling valve cover and gets final product.
When the descent of piston of oil well pump, the spool sectional area that utilizes the travelling valve strong opening valve is poor greater than the travelling valve sealing area, unit pressure between travelling valve and standing valve is during less than the above fluid column unit of travelling valve pressure, the spool of travelling valve strong opening valve drives valve rod with the travelling valve positive opening, and the logical oil groove of the oil gas of pump barrel by the travelling valve strong opening valve enters the oil pipe that the piston center enters more than the piston again and flow to the ground well head.
In the moment of piston stroking upward, utilize low pressure area that moment between standing valve and the travelling valve produces in other words moment the negative pressure that produces, pressure moment by the above fluid column of travelling valve is pushed the travelling valve strong opening valve, travelling valve is almost closed simultaneously, between the spool of travelling valve strong opening valve and travelling valve, also produce a low pressure area, the positive opening travelling valve creates conditions during for descent of piston, the to-and-fro motion of piston has driven the to-and-fro motion of travelling valve strong opening valve, immediately open travelling valve, oil gas in the pump barrel is flow in the tubing string immediately, flow to ground oil pipe net by well head.
Claims (4)
1, a kind of travelling valve strong opening valve is made up of valve body, spool and valve rod, it is characterized in that valve body is cylindrical, the top of valve body is provided with male thread, be provided with the valve rod snubber in the following tube of male thread, the bottom cylinder inner wall of snubber is provided with the logical oil groove of some roads groove shaped, and lower end to the cylinder lower end of logical oil groove is provided with the seal spool chamber, spool is cylindrical, be provided with valve rod attachment hole in the middle of it, the valve rod attachment hole of spool is vertically inserted by the valve rod snubber in the underpart of valve rod, by fixed by nut.
2, travelling valve strong opening valve according to claim 1, the top internal diameter that it is characterized in that described valve body be greater than the middle part internal diameter, logical oil groove top internal diameter less than logical oil groove at the bottom of internal diameter, logical oil groove top internal diameter equals lower piston chamber internal diameter.
3, travelling valve strong opening valve according to claim 1 is characterized in that described valve rod is cylindrical, and upper diameter is greater than the middle part diameter, and the middle part diameter is greater than the underpart diameter, and the valve rod top is provided with acute angle bevel.
4, travelling valve strong opening valve according to claim 1 is characterized in that described valve rod snubber and valve body are made as one, and its center is provided with the hole that is slightly larger than valve rod middle part diameter, and the periphery of bore dia evenly is provided with several oil throughs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320106987 CN2654900Y (en) | 2003-11-08 | 2003-11-08 | Travelling strong opening valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320106987 CN2654900Y (en) | 2003-11-08 | 2003-11-08 | Travelling strong opening valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2654900Y true CN2654900Y (en) | 2004-11-10 |
Family
ID=34342005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320106987 Expired - Fee Related CN2654900Y (en) | 2003-11-08 | 2003-11-08 | Travelling strong opening valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2654900Y (en) |
-
2003
- 2003-11-08 CN CN 200320106987 patent/CN2654900Y/en not_active Expired - Fee Related
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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 |