CN2386215Y - Abrasion-resistant corrosion-resistant assembling pluger piston for pumping unit - Google Patents
Abrasion-resistant corrosion-resistant assembling pluger piston for pumping unit Download PDFInfo
- Publication number
- CN2386215Y CN2386215Y CN 99204473 CN99204473U CN2386215Y CN 2386215 Y CN2386215 Y CN 2386215Y CN 99204473 CN99204473 CN 99204473 CN 99204473 U CN99204473 U CN 99204473U CN 2386215 Y CN2386215 Y CN 2386215Y
- Authority
- CN
- China
- Prior art keywords
- resistant
- abrasion
- corrosion
- plunger
- assembling
- 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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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses an abrasion-resistant corrosion-resistant assembling plunger piston for oil pumping machines in oil field, solving the problems of abrasion resistance and corrosion resistance of original fittings and the defect that the original fittings can not be replaced due to an integral structure. The utility model is characterized in that the abrasion-resistant corrosion-resistant assembling plunger piston is composed of a plurality of special ceramic jackets which are arranged in series with each other, and thus, an abrasion-resistant corrosion-resistant working plane is formed between the inner diameter of an inner lining of a cylinder sleeve and the outer sleeve of the plunger piston. In the continuous reciprocating oil pumping motion, the service life of the utility model is prolonged for near one time compared with old plunger pistions, and the abraded outer sleeve of the plunger piston can be replaced.
Description
The utility model relates to the abrasion-proof corrosion-proof assembling plunger that a kind of pumping unit of well is used.
Pumping unit is an equipment the most frequently used in the oil field, and the pumping unit that petroleum production is used is to be main working parts with pump barrel and plunger, and plunger by pumping, draws up crude oil to come in pump barrel from the down-hole.At present, can with the pumping unit plunger be with steel made, in oil pumping process, crude oil all has a certain amount of silt, pump barrel and plunger wear are accelerated, particularly annotate, after the acidifying, be under certain subacidity situation through heat, the steel parts are had more corrosivity when the crude oil in the oil well, thereby the working life of pumping unit plunger commonly used is all shorter, and because of its parts are overall structures, all be integral replacing so damage parts, waste is greatly.
The purpose of this utility model provides that a kind of used for oil extractor is wear-resisting, corrosion resistant assembling plunger, by changing piston structure and selecting for use new material to improve its wear-resisting, corrosion resistant performance, increase the service life to reach, reduce the maintain and replace time, and enhance productivity, thereby reduce the purpose of cost for oil production more.
The utility model is achieved through the following technical solutions:
The assembling post is that former single whole steel plunger is changed into more piece special cermacis plunger overcoat package assembly.Thereby, just constitute the abrasion-proof corrosion-proof working surface between the internal diameter of abrasion-proof corrosion-proof cylinder sleeve liner and the abrasion-proof corrosion-proof plunger overcoat external diameter 1..
Because the utility model has adopted above technological scheme, the working life of pumping unit plunger and utilization efficiency is enhanced about more than once, and can saves 50% high-quality steel.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Fig. 1 is the 1. sectional view of structure of plunger overcoat;
Fig. 2 is the sectional view of more piece assembling abrasion-proof corrosion-proof piston structure;
Fig. 1 center pillar overlap beyond the Great Wall 1. be that a length being made by the silicon nitride material is short, the internal diameter of its external diameter and cylinder sleeve liner is almost equal, the 2. almost equal book wall hollow shape body of external diameter of its internal diameter and corrosion resistant metal tube.
More piece assembling plunger among Fig. 2, be by the metal tube of good corrosion resistance 2. on string adorn some joint special cermacis plunger overcoats 1., and be lined with pad at the outer inner room of each joint and 3. strut overcoat formation oil groove and constitute.
Corrosion resistant metal tube 2. head car has outside thread 4. to be used for fastening plunger overcoat 1. to reach workpieces such as connect going up valve, rod line carrier and use, the step that the bigbore slightly corrosion resistant metal tube of the corrosion resistant metal tube afterbody section of being 2. forms 5., be used for shelves and live the plunger overcoat 1., by the internal thread that loads valve 6. step 5. inwall car has.
Claims (1)
1, a kind of used for oil extractor abrasion-proof corrosion-proof plunger is to be made by the corrosion resistant hollow metal tube, it is characterized in that: 1. metal tube outside suit 2. the special cermacis pipe box, and ceramic pipe box is made up of more piece, is provided with groove at per two jointings that save.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99204473 CN2386215Y (en) | 1996-01-28 | 1996-01-28 | Abrasion-resistant corrosion-resistant assembling pluger piston for pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99204473 CN2386215Y (en) | 1996-01-28 | 1996-01-28 | Abrasion-resistant corrosion-resistant assembling pluger piston for pumping unit |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96203105 Division CN2348152Y (en) | 1996-01-28 | 1996-01-28 | Wear and corrosion-resisting fitting for beam-pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2386215Y true CN2386215Y (en) | 2000-07-05 |
Family
ID=33999231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99204473 Expired - Fee Related CN2386215Y (en) | 1996-01-28 | 1996-01-28 | Abrasion-resistant corrosion-resistant assembling pluger piston for pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2386215Y (en) |
-
1996
- 1996-01-28 CN CN 99204473 patent/CN2386215Y/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 |