CN203175865U - Roots pump with anti-corrosion coating - Google Patents
Roots pump with anti-corrosion coating Download PDFInfo
- Publication number
- CN203175865U CN203175865U CN 201320229004 CN201320229004U CN203175865U CN 203175865 U CN203175865 U CN 203175865U CN 201320229004 CN201320229004 CN 201320229004 CN 201320229004 U CN201320229004 U CN 201320229004U CN 203175865 U CN203175865 U CN 203175865U
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- CN
- China
- Prior art keywords
- liner
- roots pump
- corrosion
- shell
- resistant coating
- 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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- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a roots pump with an anti-corrosion coating. The roots pump with the anti-corrosion coating comprises a bolt, a left shell, a right shell, and left and right linings which are made of polyhexamethylene adipamide; the left lining is attached to the inner side of the left shell; the right lining is attached to the inner side of the right shell; the left lining is connected with the right lining; the left shell and the right shell are connected through the bolt; the left lining and the right lining are pressed. The roots pump with the anti-corrosion coating disclosed by the utility model is good in anti-corrosion effect and long in service life.
Description
Technical field
The utility model belongs to air draw-out device field, is specifically related to a kind of Roots pump with corrosion-resistant coating.
Background technique
When pump when conveying contains Korrosionsmedium, can produce corrosion, reduction of service life to the pump housing and rotor.The pump housing of existing multiple model improves this, and the spraying fluorine is moulded the alloy anticorrosive coat in pump, but has anticorrosive coat bonding strength caducous problem inadequately.In addition, owing to complex-shaped in the Roots pump with corrosion-resistant coating, the spraying corrosion resistant coating difficulty fails effectively to solve so have the anticorrosion problem of the Roots pump of corrosion-resistant coating always.
The model utility content
(1) technical problem that will solve
The technical problems to be solved in the utility model is the anti-corrosive properties that strengthen Roots pump.
(2) technological scheme
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of Roots pump with corrosion-resistant coating, described Roots pump with corrosion-resistant coating comprise that screw, left shell, right shell body and material are the left and right sides liner of polyhexamethylene adipamide; Described left liner is fitted in the inner side surface of left shell, and described right liner is fitted in the inner side surface of right shell body, and described left liner is connected with right liner, and described left shell links to each other by screw with right shell body and compresses left liner and right liner.
Further, the inner side surface of described left shell and right shell body is equipped with draw-in groove, and the outer side surface of described left liner and right liner is provided with buckle, and described buckle is arranged in the draw-in groove.
Further, the quantity of described draw-in groove and buckle all has 4.
Be provided with seal ring between described left liner and the right liner.
(3) beneficial effect
Roots pump with corrosion-resistant coating of the present utility model changes prior art forms anticorrosive coat at pump housing internal surface by spraying or sintering method, with a left side, right liner also is fitted in a left side respectively, the inner side surface of right shell body, an and left side, right liner is connected, solved the problem that the Roots pump pump case internal surface with corrosion-resistant coating is difficult for covering thicker anticorrosive coat, easily manufactured, cost reduces, even in running, be subjected to the bump of lump in the medium, the plastic inner lining difficult drop-off, anticorrosion, prolong working life, thereby realize having the Roots pump of corrosion-resistant coating for the purpose of transmission Korrosionsmedium.
Description of drawings
Fig. 1 is the plan view that the utlity model has the Roots pump of corrosion-resistant coating;
Fig. 2 is the sectional view of A-A among the utility model Fig. 1;
1 is that left liner, 2 is that left shell, 3 is that right shell body, 4 is that right liner, 5 is that screw, 7 is that draw-in groove, 8 is that buckle, 9 is seal ring among the figure.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
A kind of Roots pump with corrosion-resistant coating as depicted in figs. 1 and 2 comprises that screw 5, left shell 2, right shell body 3 and material are the left and right sides liner 1,4 of polyhexamethylene adipamide; Described left liner 1 is fitted in the inner side surface of left shell 2, and described right liner 4 is fitted in the inner side surface of right shell body 3, and described left liner 1 is connected with right liner 4, and described left shell 2 links to each other by screw 5 with right shell body 3 and compresses left liner 1 and right liner 4.
Wherein, described left shell 2 is equipped with draw-in groove 7 with the inner side surface of right shell body 3, and described left liner 1 is provided with buckle 8 with the outer side surface of right liner 4, and described buckle 8 is arranged in the draw-in groove 7.
Wherein, described draw-in groove 7 all has 4 with the quantity of buckle 8, and about in the of 3 both sides with right shell body to be separately positioned on left shell 2.
Wherein, be provided with seal ring 9, good airproof performance between described left liner 1 and the right liner 4.
Roots pump with corrosion-resistant coating of the present utility model changes prior art forms anticorrosive coat at pump housing internal surface by spraying or sintering method, with a left side, right liner 1,4 also are fitted in a left side respectively, right shell body 2,3 inner side surface, an and left side, right liner 1,4 are connected, solved the problem that the Roots pump pump case internal surface with corrosion-resistant coating is difficult for covering thicker anticorrosive coat, easily manufactured, cost reduces, even in running, be subjected to the bump of lump in the medium, the plastic inner lining difficult drop-off, anticorrosion, prolong working life, thereby realize having the Roots pump of corrosion-resistant coating for the purpose of transmission Korrosionsmedium.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. Roots pump with corrosion-resistant coating, it is characterized in that: described Roots pump with corrosion-resistant coating comprises that screw (5), left shell (2), right shell body (3) and material are the left and right sides liner (1,4) of polyhexamethylene adipamide; Described left liner (1) is fitted in the inner side surface of left shell (2), described right liner (4) is fitted in the inner side surface of right shell body (3), described left liner (1) is connected with right liner (4), and described left shell (2) links to each other by screw (5) with right shell body (3) and compresses left liner (1) and right liner (4).
2. the Roots pump with corrosion-resistant coating according to claim 1, it is characterized in that: described left shell (2) is equipped with draw-in groove (7) with the inner side surface of right shell body (3), described left liner (1) is provided with buckle (8) with the outer side surface of right liner (4), and described buckle (8) is arranged in the draw-in groove (7).
3. the Roots pump with corrosion-resistant coating according to claim 2 is characterized in that: described draw-in groove (7) all has 4 with the quantity of buckle (8).
4. the Roots pump with corrosion-resistant coating according to claim 1 is characterized in that: be provided with seal ring (9) between described left liner (1) and the right liner (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229004 CN203175865U (en) | 2013-04-27 | 2013-04-27 | Roots pump with anti-corrosion coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229004 CN203175865U (en) | 2013-04-27 | 2013-04-27 | Roots pump with anti-corrosion coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175865U true CN203175865U (en) | 2013-09-04 |
Family
ID=49072568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320229004 Expired - Fee Related CN203175865U (en) | 2013-04-27 | 2013-04-27 | Roots pump with anti-corrosion coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401971A (en) * | 2016-11-24 | 2017-02-15 | 浙江创为真空设备有限公司 | Pump body of screw vacuum pump |
-
2013
- 2013-04-27 CN CN 201320229004 patent/CN203175865U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401971A (en) * | 2016-11-24 | 2017-02-15 | 浙江创为真空设备有限公司 | Pump body of screw vacuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20210427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |