CN2448956Y - All metal screw bolt pump - Google Patents
All metal screw bolt pump Download PDFInfo
- Publication number
- CN2448956Y CN2448956Y CN 00212104 CN00212104U CN2448956Y CN 2448956 Y CN2448956 Y CN 2448956Y CN 00212104 CN00212104 CN 00212104 CN 00212104 U CN00212104 U CN 00212104U CN 2448956 Y CN2448956 Y CN 2448956Y
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- China
- Prior art keywords
- rotor
- pump
- stator
- utility
- model
- 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 an all metal screw pump. In the utility model, based on the screw pump with the structure formed by the sequential connection of a rotor, a stator, an upper joint, a lower joint and an oil pumping rod, the stator and the rotor are changed to be made of metal stainless steel material, and the rotor and the stator from a clearance fit. Because the stator and the rotor are made of all metal material, the defects of the traditional screw pump can be overcome. Accordingly, the pump has the advantages of abrasion resistance, high-temperature resistance and corrosion resistance. In addition, because in a pump barrel, the radial dimension is large, and the axial dimension is small, the pump displacement is increased, the driving speed is high, and the rotor is not easy to be damaged. The utility model not only can extend the period of pump inspection, but also has the advantages of simple manufacture and easy replacement of the rotor. Therefore, the utility model can widely replace the screw pump of the prior art for popularization and action.
Description
The utility model relates to a kind of full-metallic screw pump of oil field oil recovery usefulness, belongs to oil field down-hole oil production pump class.
On the stator surface in the existing technology in the conventional screw pump one deck vulcanized rubber is arranged, increase the service life so as to reaching, reach the oil pumping amount purpose that increases screw pump, but really limited the radial dimension of screw pump because of the existence of combization rubber layer, the actuating speed of pump housing working environment degree and screw pump is descended, and then the Applicable scope and the effect of screw pump have been limited, a kind of full-metallic screw pump can overcome above-mentioned shortcoming, and it remains on use under the conventional state, can under specific operation, use again, can satisfy the big discharge capacity of oil well and take out needs deeply, can obtain better using effect again.
The purpose of this utility model is in order to overcome above-mentioned shortcoming, and a kind of full-metallic screw pump that provides.
The purpose of this utility model is achieved in that
The utility model is a kind of improvement on the basis of existing screw pump, it is that a stator is arranged between upper connection and lower contact, the stator upper and lower end is arrived above the upper and lower joint by the anticreep screw, the anticreep screw can prevent that stator from coming off on joint, rotor and stator are that full-metallic stainless steel metal material is made, therefore can use the crude oil lifting that also is used in the heavy oil heat production well and contains the sand oil well under conventional state, this pump metal stator and rotor when mounted is a Spielpassung; Can guarantee that like this screw pump when running well, brings into play higher working efficiency.
Working method of the present utility model: utilize the push effect of crest line when rotating of screw rod that fluid is passed through each chamber, be pushed through exhaust end from the suction side, pressure constantly raises, and discharge capacity evenly is drained in the oil pipe.
Owing to adopt such scheme, particularly stator and rotor material adopt full-metallic stainless steel manufacturing and reasonably between stator and the rotor Spielpassung make this pump compare to have more wear-resisting with traditional screw pump, high temperature resistant, decay resistance, the screw pump radial dimension is increased and discharge capacity is big, axial dimension reduces, and volume is little, in light weight, the pump inner stator, the ambient temperature restriction can be subjected to during working rotor thereby the pump actuating speed can be improved, and then increase pump displacement, because rotor is an easily damaged parts, during the inspection pump, can only detect rotor, change, thereby can reduce the pump detection and workover operation that once plays lower sucker rod.
Below in conjunction with drawings and Examples the utility model is described further.
Figure: the utility model structure principle chart.
1 upper connection among the figure, 2 stators, 3 rotors, 4 anticreep screws, 5 lower contacts.
Upper connection among the figure (1) is connecting metal stator by screw thread and is using, following anticreep screw (4) is fixed to upper connection 4 with above the lower contact 5, rotor (3) is installed between stator the inside and the stator and is Spielpassung, its interstice coverage: between 0-0.5 millimeter, 0.01-0.4 millimeter of optimum range value, the rotor upper end joins by the sucker rod in screw thread and the upper connection, in the unsettled lower contact in rotor lower end (5) in pump housing lower end, the lower contact ingress can be as filler opening, rotor in the utility model and stator material all are that stainless steel material is manufactured, can play wear-resisting like this, high temperature resistant, corrosion-resistant effect, also can make radially size increase in the pump barrel, thereby reach the purpose that increases pump displacement.
Claims (1)
1, a kind of full-metallic screw pump is made up of the rotor (3) of being with screw thread upper connection (1) and lower contact (5), stator (2) to be connected with sucker rod; It is characterized in that being between described stator and the rotor Spielpassung, its matching gap is: 0-0.5 millimeter, optimum range: 0.01-0.4 millimeter, stator (2) is respectively fixed to upper connection (1) with above the lower contact (5) with rotor (4), and stator and rotor material are manufactured for the stainless steel metal material and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00212104 CN2448956Y (en) | 2000-06-01 | 2000-06-01 | All metal screw bolt pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00212104 CN2448956Y (en) | 2000-06-01 | 2000-06-01 | All metal screw bolt pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2448956Y true CN2448956Y (en) | 2001-09-19 |
Family
ID=33578679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00212104 Expired - Fee Related CN2448956Y (en) | 2000-06-01 | 2000-06-01 | All metal screw bolt pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2448956Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927005A (en) * | 2012-11-09 | 2013-02-13 | 无锡世联丰禾石化装备科技有限公司 | Stator of screw rod pump |
| CN103362480A (en) * | 2012-04-10 | 2013-10-23 | 中国石油化工股份有限公司 | Laminated spiral lifting equipment and technology |
| CN106996764A (en) * | 2016-01-25 | 2017-08-01 | 中联重科股份有限公司 | Method, device and system for determining sizes of stator and rotor of screw pump |
-
2000
- 2000-06-01 CN CN 00212104 patent/CN2448956Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362480A (en) * | 2012-04-10 | 2013-10-23 | 中国石油化工股份有限公司 | Laminated spiral lifting equipment and technology |
| CN102927005A (en) * | 2012-11-09 | 2013-02-13 | 无锡世联丰禾石化装备科技有限公司 | Stator of screw rod pump |
| CN106996764A (en) * | 2016-01-25 | 2017-08-01 | 中联重科股份有限公司 | Method, device and system for determining sizes of stator and rotor of screw pump |
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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 |