CN201582110U - Metal screw pump - Google Patents
Metal screw pump Download PDFInfo
- Publication number
- CN201582110U CN201582110U CN2009201644462U CN200920164446U CN201582110U CN 201582110 U CN201582110 U CN 201582110U CN 2009201644462 U CN2009201644462 U CN 2009201644462U CN 200920164446 U CN200920164446 U CN 200920164446U CN 201582110 U CN201582110 U CN 201582110U
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- CN
- China
- Prior art keywords
- stator
- screw pump
- pump
- rotor
- metal
- 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 oil extraction equipment used for heavy oil thermal production processes, in particular to a full metal screw pump. On the basis of a general screw pump with a structure of sequentially connecting a rotor, a stator, an upper joint, a lower joint and a sucker rod, the stator made of rubber materials is changed into a stator made of metal stainless steel materials, and the rotor is in clearance fit with the stator. Because the stator and the rotor are both made of full metal materials, the screw pump has wear resistance, high-temperature resistance and corrosion resistance. The stator in the pump can not be limited by environmental temperature during operation, thereby increasing driving rate of the pump and expanding displacement of the pump. The rotor is not easy to be damaged but easy to be replaced, the pump inspection period can be prolonged, and the metal screw pump is easy to be manufactured. Therefore, the metal screw pump can replace the conventional screw pump in quality and can be popularized and applied.
Description
One, technical field
The utility model relates to the oil production equipment that uses in a kind of heavy oil thermal process, particularly a kind of full-metallic screw pump.
Two, background technique
On the stator surface in the conventional screw pump one deck vulcanized rubber is arranged, be used for reaching and increase the service life, increase screw pump oil pumping amount purpose, but limited the radial dimension of screw pump because of the existence of vulcanized rubber layer, the actuating speed of pump housing working environment degree and screw pump is descended, and then the using scope and the effect of screw pump have been limited, and under high temperature action, because rubber product is for gas, the reaction of polymeric liquids foam and oil is relatively sensitiveer, therefore screw pump is when work, and its stator has swelling in various degree, can bring two difficulties like this: the one, and swelling is excessive, can cause moment of torsion excessive, screw pump starts difficulty; The 2nd, swelling is too small, can cause the screw pump inefficiency again.More have rubber at high temperature easily to wear out, come off, need to change timely, this working efficiency influence to screw pump is very big.This model utility can overcome above-mentioned shortcoming can be used under conventional state, can use under specific operation again, obtains good using effect.
Three, summary of the invention
Goal of the invention
The purpose of this utility model is exactly in order to overcome above-mentioned shortcoming, and a kind of full-metallic screw pump that provides.
Technological scheme
The utility model is a kind of improvement on the basis of conventional screw pump, a stator is arranged between upper connection and lower contact, the rotor that stator is connected with sucker rod is connected, rotor and stator are the full-metallic material, metal stator and rotor are Spielpassung during installation, utilize the push effect of crest line when rotating of screw rod that fluid is passed through each chamber, from the suction side to the exhaust end, pressure constantly raises, and discharge capacity evenly is drained in the oil pipe.
Beneficial effect
In the such scheme,, make to have more wear-resisting, high temperature resistant, decay resistance than conventional screw pump because stator is full-metallic stainless steel and rational Spielpassung ratio with rotor.Be not subjected to the ambient temperature restriction when pump inner stator, working rotor and improve the pump actuating speed, and then increase pump delivery, because rotor is an easily damaged parts, during the inspection pump, can only detect, change rotor, thereby can reduce the pump detection and workover operation that once plays lower sucker rod, and install simply, similar to the conventional screw pump.Can also adapt to higher operating temperature range (350 ℃) and various viscosity.Do not have shear action, can not form emulsion liquid, easier startup under high viscosity also is convenient to control to flow.
Four, description of drawings
Figure of description is the utility model structure principle chart:
1 is rotor among the figure, and 2 are upper connection, and 3 is stator, and 4 are the location pin, and 5 are lower contact.
Five, embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done further introduction, but not as to qualification of the present utility model.
As shown in the figure, stator (3) is separately fixed at upper connection (2) with above the lower contact (5) with rotor (1), and stator and rotor are stainless steel full-metallic material.Between stator (3) and the rotor (1) is Spielpassung, and its matching gap is: 0-0.4 millimeter, optimum range: 0.01-0.3 millimeter.
Claims (2)
1. a full-metallic screw pump is made up of last lower contact, stator and the rotor that is connected with sucker rod, it is characterized in that stator and rotor are separately fixed at upper connection and above the lower contact, stator and rotor are stainless steel full-metallic material.
2. full-metallic screw pump as claimed in claim 1 is characterized in that being Spielpassung between stator and the rotor that its matching gap is: 0-0.4 millimeter, optimum range: 0.01-0.3 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201644462U CN201582110U (en) | 2009-09-11 | 2009-09-11 | Metal screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201644462U CN201582110U (en) | 2009-09-11 | 2009-09-11 | Metal screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201582110U true CN201582110U (en) | 2010-09-15 |
Family
ID=42724108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201644462U Expired - Fee Related CN201582110U (en) | 2009-09-11 | 2009-09-11 | Metal screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201582110U (en) |
-
2009
- 2009-09-11 CN CN2009201644462U patent/CN201582110U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20120911 |