CN2558794Y - Single-screw pump - Google Patents
Single-screw pump Download PDFInfo
- Publication number
- CN2558794Y CN2558794Y CN 01276220 CN01276220U CN2558794Y CN 2558794 Y CN2558794 Y CN 2558794Y CN 01276220 CN01276220 CN 01276220 CN 01276220 U CN01276220 U CN 01276220U CN 2558794 Y CN2558794 Y CN 2558794Y
- Authority
- CN
- China
- Prior art keywords
- stator
- combination
- piece
- screw pump
- alternate
- 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
Links
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- Rotary Pumps (AREA)
Abstract
The utility model relates to a novel single screw pump applied in petroleum machinery, which is characterized in that stator pieces made of two or more than two materials interphasely combined, thus forming a stator. The combination of the stator has one or more than one types, namely, interphase combination between mental stator piece (3) and inorganic composite stator (4), interphase combination between mental stator piece (3) and polymer composite stator (5), interphase combination between mental stator piece (3) and organic-inorganic polymer composite stator (6), and stator pieces which combine the stator are of the same radial cross shape and size. Therefore, the utility model has the advantages of novel structure, high working efficiency, long service life, wide application, etc.
Description
The utility model relates to a kind of new type single screw pump that is applied to the petroleum machinery field.
(1) background technique is present, and its stator of screw pump all adopts elastometric lining in the prior art, and the swelling problem of elastometric lining greatly affects screw rod priming of pump stationarity and working efficiency.For a long time, be the technical barrier that this field of puzzlement produces always.
At present, ZL00212104.2 has proposed the notion of " full-metallic screw pump ", adopts whole-metal stator, rotor, has improved the accuracy of manufacturing of stator and rotor, and this is a much progress, but has strengthened manufacture cost, is unfavorable for applying.
(2) the summary of the invention the purpose of this utility model is to overcome deficiency of the prior art, and proposes a kind of new type single screw pump.
The utility model is to realize like this.The utility model is the improvement on the basis of existing screw pump.It is characterized in that stator piece alternate combine of stator by two or more different materials.The combination of stator has one or more forms, the alternate each other combination of first metal stator sheet (3) and inorganic composite materials stator piece (4), it two is alternate each other combinations of metal stator sheet (3) and polymer composite stator piece (5), it three is alternate each other combinations of metal stator sheet (3) and inorganic-organic polymer composite stator piece (6), and it is all identical to form radial cross section shape, the size of these stator pieces of stator.
Compared with prior art, its stator of the utility model is by alternate the combining of stator piece of two or more different materials, the combination of stator has one or more forms, the alternate each other combination of first metal stator sheet (3) with inorganic composite materials stator piece (4), it two is alternate each other combinations of metal stator sheet (3) and polymer composite stator piece (5), and it three is alternate each other combinations of metal stator sheet (3) and inorganic-organic polymer composite stator piece (6).Therefore, the utility model novel structure, and taken into account the advantage of elastometric lining stator and metal stator has characteristics such as wear-resisting, high temperature resistant, reliable performance, high working efficiency, wide application.
(3) appended drawings is a structural principle schematic representation of the present utility model.
(4) embodiment is further described below in conjunction with drawings and Examples.
Embodiment 1:
As shown in drawings, this model utility helical rotor pump, comprise also can be used as out, the last lower contact (8.1) of filler opening, rotor (2), metal stator sheet (3), composite material stator piece, pump case (7), stator be in pump case (7), the combination of its stator is by the alternate each other combination of a kind of stator piece among metal stator sheet (3) and inorganic composite materials stator piece (4), polymer composite stator piece (5) and inorganic-(6) three kinds of stator pieces of organic polymer composite stator piece, and radial cross section shape, the size of these stator pieces of composition stator are all identical.Those skilled in the art can carry out other combination according to existing knowledge, but all within the Patent right protection domain of the utility model.
Above-mentioned model utility helical rotor pump novel structure, high working efficiency, life-span are long, have popularizing application prospect widely.
Claims (4)
1, a kind of new type single screw pump, it is characterized in that stator piece alternate combine of stator of the present utility model by two or more different materials, the combination of stator has one or more forms, and radial cross section shape, the size of these stator pieces of composition stator are all identical.
2, a kind of new type single screw pump according to claim 1, the combination that it is characterized in that described stator are the alternate each other combinations of metal stator sheet (3) and inorganic composite materials stator piece (4).
3, a kind of new type single screw pump according to claim 1, the combination that it is characterized in that described stator are the alternate each other combinations of metal stator sheet (3) and polymer composite stator piece (5).
4, a kind of new type single screw pump according to claim 1, the combination that it is characterized in that described stator are the alternate each other combinations of metal stator sheet (3) and inorganic-organic polymer composite stator piece (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01276220 CN2558794Y (en) | 2001-11-30 | 2001-11-30 | Single-screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01276220 CN2558794Y (en) | 2001-11-30 | 2001-11-30 | Single-screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2558794Y true CN2558794Y (en) | 2003-07-02 |
Family
ID=33680416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01276220 Expired - Fee Related CN2558794Y (en) | 2001-11-30 | 2001-11-30 | Single-screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2558794Y (en) |
-
2001
- 2001-11-30 CN CN 01276220 patent/CN2558794Y/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 |