CN2132846Y - Corrosion and abrasion resistant pump valve of oil-well pump - Google Patents
Corrosion and abrasion resistant pump valve of oil-well pump Download PDFInfo
- Publication number
- CN2132846Y CN2132846Y CN 92234069 CN92234069U CN2132846Y CN 2132846 Y CN2132846 Y CN 2132846Y CN 92234069 CN92234069 CN 92234069 CN 92234069 U CN92234069 U CN 92234069U CN 2132846 Y CN2132846 Y CN 2132846Y
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- valve
- valve seat
- pump
- ball
- alloy
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Abstract
The utility model relates to a corrosion prevention and abrasion resistance pump valve of an oil-well pump, which is mainly composed of a valve ball and a combined valve seat, wherein, the outer surface of the valve ball is electrochemically provided with a metallic layer or an alloy layer, the thickness of which is from 0.6 mum to 0.15 mm, the combined valve seat is composed of an O-shaped plastic ring and a valve seat, and the inner surface of the valve seat is provided with the metallic layer or the alloy layer in a brushing mode. Because of the special structure, the corrosion prevention and the abrasion resistance are increased, the return speed of the valve ball can be met, the pumping efficiency is ensured, the sealing degree is increased, the impacted kinetic energy of the valve ball and the valve seat is reduced, and the product service life is prolonged.
Description
The utility model relates to the wear-resistant pump valve of a kind of oil-well pump anti-corrosive, belongs to the oil recovery machiner class.
The oil well pump oil recovery is used in oil field in the world about 60～70% at present.For prolonging the working life of oil well pump, adopt any materials processing to make and take out the research topic that the pump component are Materials Science and Engineerings.Pump valve is the heart of oil well pump, and the oil well pump pump valve is made of valve ball and valve seat, and the life-span of oil well pump is depended on the pump valve life-span, and the corrosion of pump valve failure reasons causes with impact wear.Abroad when making valve ball and valve seat, all adopt metallic material, at present as adopting high-quality tool steel in the discloseder technology of the U.S., stainless steel, aluminum bronze, casting cobalt alloy, cemented carbide, use this five classes material and carry out the combination of tens kinds of modes, make valve ball and valve seat.In recent years, also there was the PSZ pottery of employing (zirconium oxide) to make valve ball and valve seat abroad.In addition, B. P. GB2144203 and German patent DE 3428061 have disclosed valve ball and valve seat all adopts stainless steel material to make, and domestic also the appearance made valve ball and valve seat with stainless steel, and high carbon chromium stainless steel and casting cobalt alloy are made valve ball and valve seat.More than these materials make valve ball and valve seat and fail extensive use at home at present and mainly cost an arm and a leg, be difficult for processing, and China adopts generally the GCr15 Bearing Steel to make valve ball at present, valve seat is made in the carburizing of 20CrMo steel, though this pump valve price is more cheap, the life-span is short.The pure nylon of domestic in addition some Oilfield using is made valve seat, the valve ball of nylon clad metal, though this pump valve low price, easily processing, insufficient strength, the nylon light weight, it is slow that valve ball falls speed after rise, influences its effect.
The purpose of this utility model is exactly the shortcoming that overcomes prior art, and a kind of easy processing is provided, and the life-span is long, price matters, the pump valve of the corrosion protection abrasion resistant of tightness height and reduction valve ball and valve seat bump kinetic energy.
Technology of the present utility model realizes by following structure, the oil pumping pump valve mainly is made of valve ball and stack valve seat, the corrosion protection abrasion resistant metal layer or the alloy-layer of the brush plating of useful brush electroplating method on the outer surface of wherein said valve ball, as nickel dam, nickel one phosphorus alloy genus, cobalt layer, nickel one tungsten alloy genus etc., thickness of coating 60 μ m～0.15mm, also can change according to the oil field geologic situation, select coating, described valve ball material is a GCr15 bearing steel or stainless steel, or adopts waste and old valve ball; What match with valve ball is stack valve seat, and it is made up of two-part, i.e. O plastic circle and its bonding valve seat together.On O plastic circle and the end face that valve seat contacts a protruding circle is arranged, this protruding circle matches with groove on the seat valve, its reason be convenient between two members in conjunction with more firm, plastic ring and valve base chamber adopt adhesive bonding, be corrosion and the wearing and tearing that prevent crude oil, at valve seat interior surface metal brush-plating layer or alloy-layer, it is identical with the material of valve ball brush plating, the material of valve seat is 20CrMo or stainless steel, and valve ball is actually the bump with O plastic circle at the bump of when work and stack valve seat, it is the bump of high hardness material and low-durometer material, be actually the bump with O plastic circle, promptly the bump of high hardness material and low-durometer material can reduce bump kinetic energy.Because plastic material has corrosion protection abrasion resistant and the mechanical strength under the pump valve working environment, therefore do not need metal brush-plating layer and alloy-layer.In addition, waste and old valve ball and valve seat also can utilize again, are processed into structure of the present utility model.
Major advantage of the present utility model is to have improved the anticorrosion anti-corrosion property of pump valve, satisfy the falling speed of valve ball, guaranteed pump efficiency, constituted the sealing of pump valve again because of valve ball and O shape plastic ring, the tightness height, reduced the bump kinetic energy of valve ball and valve seat, its life-span is long, easily processing, low price, be easy to use, it is than present general Yalve Balls of Sucker Rod Pumps GCr15, and the valve seat 20CrMo carburizing life-span doubles.If utilize waste and old valve ball and valve seat in addition again, also can save great deal of steel, because the life-span prolongs, can make and reduce the maintenance number of times, correspondingly saved recondition expense.
Further describe structure of the present utility model below in conjunction with accompanying drawing:
Fig. 1 is the pump valve of prior art, and wherein valve ball drops on the valve seat;
Fig. 2 is a structural representation of the present utility model, and wherein valve ball does not drop on the stack valve seat.
Oil well pump pump valve described in the utility model mainly comprises a valve ball 1 and a stack valve seat 2, wherein the surperficial power up brush of valve ball 1 is coated with corrosion protection abrasion resistant metal layer or alloy-layer, as nickel dam, nickel phosphor alloy, the cobalt layer, nickel one tungsten alloy etc., thickness of coating 60 μ m～0.15mm, and the valve ball material is a GCr15 bearing steel or stainless steel, what match with valve ball is a stack valve seat 2, it is made up of two-part, promptly the valve seat 5 that is lumped together by O plastic circle 4 and its bonding is formed, on O plastic circle 4 and the end face that valve seat 5 contacts a circle boss is arranged, have one to enclose the groove that matches on its valve seat 5 corresponding faces, the valve seat interior surface brush plating has one deck corrosion protection abrasion resistant metal layer or alloy-layer, all the surface layer with valve ball is identical with thickness for its material, and convex plastic ring 4 can be selected polyethylene or nylon for use.
The corrosion protection abrasion resistant test result tabulation that to make the pump valve material below compares
Claims (3)
1, the wear-resistant pump valve of a kind of oil-well pump anti-corrosive, it is characterized in that, it is made up of valve ball and stack valve seat, wherein said ball surface brush is coated with metal layer or alloy-layer, its thickness is 0.6 μ m～0.15mm, described stack valve seat is made up of O plastic circle and valve seat, one circle boss is arranged on the surface of contact of O plastic circle and valve seat, the groove that on its valve seat respective face, has a circle to match, the valve seat interior surface brush is coated with metal layer or alloy-layer, and its thickness is 0.6 μ m～0.15mm, bonding between O type circle and the valve seat by adhesive, the material of valve ball is a GCr15 bearing steel or stainless steel, and the material of valve seat is 20CrMo, or stainless steel.
2, pump valve according to claim 1 is characterized in that described O plastic loop material is polyethylene or nylon.
3, according to claim 1 or described pump valve, the material that it is characterized in that its valve ball and valve seat inner face brush metal cladding or alloy-layer is nickel, nickel one phosphorus alloy, cobalt, nickel one tungsten alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92234069 CN2132846Y (en) | 1992-09-30 | 1992-09-30 | Corrosion and abrasion resistant pump valve of oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92234069 CN2132846Y (en) | 1992-09-30 | 1992-09-30 | Corrosion and abrasion resistant pump valve of oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2132846Y true CN2132846Y (en) | 1993-05-12 |
Family
ID=33776235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92234069 Expired - Fee Related CN2132846Y (en) | 1992-09-30 | 1992-09-30 | Corrosion and abrasion resistant pump valve of oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2132846Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678987A (en) * | 2012-05-04 | 2012-09-19 | 华中科技大学 | Seawater hydraulic overflow valve |
-
1992
- 1992-09-30 CN CN 92234069 patent/CN2132846Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678987A (en) * | 2012-05-04 | 2012-09-19 | 华中科技大学 | Seawater hydraulic overflow 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 |