CN201747619U - Chemical axial flow pump capable of interchanging shaft seals - Google Patents
Chemical axial flow pump capable of interchanging shaft seals Download PDFInfo
- Publication number
- CN201747619U CN201747619U CN2010200394994U CN201020039499U CN201747619U CN 201747619 U CN201747619 U CN 201747619U CN 2010200394994 U CN2010200394994 U CN 2010200394994U CN 201020039499 U CN201020039499 U CN 201020039499U CN 201747619 U CN201747619 U CN 201747619U
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- CN
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- Prior art keywords
- seal
- shaft
- flow pump
- interchanging
- matched
- 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
A chemical axial flow pump capable of interchanging shaft seals comprises a pump body, a bearing box, a shaft, an impeller, a sealing component, and a shaft seal cavity, wherein two sealing devices including a packing sealing device and a mechanical sealing device are matched with the pump body; and the male end of the packing sealing device and that of the mechanical sealing device are matched with the female end of the shaft seal cavity. The utility model has the advantages that the two sealing devices are matched with the pump body; and the male ends of the two sealing devices are matched with the female end of the shaft seal cavity, so that the effect of randomly changing sealing devices is achieved.
Description
Technical field
The utility model relates to a kind of pump-unit, specifically is meant a kind of chemical industry axial-flow pump of interchangeable axle envelope.
Background technique
The axle envelope principle of chemical industry axial-flow pump is when rotor element parts such as () pump shaft impeller when rotating in the pump housing, blade promotes and then rotation of liquid, will produce certain pressure in the pump housing, and a gap just should be arranged between the pump housing and the rotor, pressured fluid will be to Clearance Flow, and the axle envelope is exactly to play the effect that does not allow pressured fluid leak.At present, the axle envelope form of chemical industry axial-flow pump generally has two kinds of forms: a kind of be mechanical seal, a kind of be packing seal, some user wishes to change packing seal into mechanical seal in actual mechanical process, and some user wishes to change mechanical seal into packing seal, these two kinds of seal arrangements can not arbitrarily be changed, if change mechanical seal into packing seal, will be subjected to the restriction of shaft seal cavity size and inconvenience, therefore two kinds of seal form exist interchange issues.
Summary of the invention
In view of the above, purpose of the present invention will overcome deficiency of the prior art exactly.A kind of chemical industry axial-flow pump of interchangeable easily and efficiently axle envelope is provided.
The technical solution of the utility model is achieved in that a kind of chemical industry axial-flow pump of interchangeable axle envelope, include the pump housing, bearing housing, axle, impeller, black box, shaft seal cavity, it is characterized in that: be provided with two seal arrangements with the pump housing is supporting, be stuffing seal and mechanical seal device, the inner stopper of the outer stopper of described stuffing seal and mechanical seal device and pump housing shaft seal cavity matches.
Advantage of the present utility model is: designed two seal arrangements for the pump housing is supporting, and the inner stopper design of the outer stopper of stuffing seal and mechanical seal device and pump housing shaft seal cavity is matched, thereby reached the effect of random replacing seal arrangement.The utility model is simple in structure simultaneously, improves easily, is easy to promote, and user's alternative is used.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model stuffing seal.
Fig. 3 is the structural representation of the utility model mechanical seal device.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
See also accompanying drawing, Figure 1 shows that a chemical industry axial-flow pump, include the pump housing 1, bearing housing 2, axle 3, impeller 4, black box 5, shaft seal cavity 6, see also Fig. 2 and Fig. 3, be provided with two seal arrangements with this pump housing 1 is supporting, i.e. stuffing seal 7 and mechanical seal device 8, stuffing seal 7 matches with the outer stopper of mechanical seal device 8 and the inner stopper of pump housing shaft seal cavity 6.
Two kinds of seal arrangements all are to be fixed as one with bolt and shaft seal cavity by end cap, change stuffing seal into mechanical seal device as needs, just pump shaft can be pulled down together with packing seal, mechanical seal are assembled on the shaft seal cavity get final product.
Claims (1)
1. the chemical industry axial-flow pump of an interchangeable axle envelope, include the pump housing, bearing housing, axle, impeller, black box, shaft seal cavity, it is characterized in that: be provided with two seal arrangements with the pump housing is supporting, be stuffing seal and mechanical seal device, the inner stopper of the outer stopper of described stuffing seal and mechanical seal device and pump housing shaft seal cavity matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200394994U CN201747619U (en) | 2010-01-14 | 2010-01-14 | Chemical axial flow pump capable of interchanging shaft seals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200394994U CN201747619U (en) | 2010-01-14 | 2010-01-14 | Chemical axial flow pump capable of interchanging shaft seals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747619U true CN201747619U (en) | 2011-02-16 |
Family
ID=43582298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200394994U Expired - Fee Related CN201747619U (en) | 2010-01-14 | 2010-01-14 | Chemical axial flow pump capable of interchanging shaft seals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886719A (en) * | 2018-09-10 | 2020-03-17 | 威乐(中国)水泵系统有限公司 | Horizontal split centrifugal pump shaft seal structure |
-
2010
- 2010-01-14 CN CN2010200394994U patent/CN201747619U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886719A (en) * | 2018-09-10 | 2020-03-17 | 威乐(中国)水泵系统有限公司 | Horizontal split centrifugal pump shaft seal structure |
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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: 20110216 Termination date: 20140114 |