CN202326438U - Inner shell structure of multi-stage centrifugal pump - Google Patents
Inner shell structure of multi-stage centrifugal pump Download PDFInfo
- Publication number
- CN202326438U CN202326438U CN2011204925747U CN201120492574U CN202326438U CN 202326438 U CN202326438 U CN 202326438U CN 2011204925747 U CN2011204925747 U CN 2011204925747U CN 201120492574 U CN201120492574 U CN 201120492574U CN 202326438 U CN202326438 U CN 202326438U
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- CN
- China
- Prior art keywords
- inner shell
- centrifugal pump
- shell structure
- bumps
- inner housing
- 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 - Lifetime
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Abstract
The utility model discloses an inner shell structure of a multi-stage centrifugal pump. The inner shell structure comprises an inner shell, and is characterized in that: at least two outward convex matching sections are axially arranged on the outer surface of the inner shell; each matching section comprises a plurality of equal-height bumps which are uniformly distributed along circumference; the outer surfaces of the bumps are matching surfaces which are matched with a cavity of an outer shell. By using the inner shell structure of the multi-stage centrifugal pump provided by the utility model, when the inner shell structure is matched with the outer shell, the matching surfaces are formed by only the outer surfaces of the bumps, so that the area of matching surfaces is greatly reduced, and the assembly difficulty is reduced. Thus, both assembly and disassembly are convenient and fast. Meanwhile, since a cavity gap between the bumps is large, a dead water region is avoided to prevent crystallization of the medium when a medium flows between the inner shell and the outer shell. Normal operation of a pump is guaranteed.
Description
Technical field
The utility model relates to a kind of bivalve body multistage centrifugal pump, especially a kind of bivalve body multistage centrifugal pump inner housing structure.
Background technique
In traditional bivalve body multistage centrifugal pump, inner housing and frame directly cooperate and are the integrated type cooperation, and promptly inner housing has a smooth outer surface, and frame has a smooth internal surface, and Spielpassung is together between outer surface and the internal surface then.This cooperating structure mode can guarantee the normal operation of pump preferably.But assembling and dismounting to pump bring very big difficulty; Simultaneously, between frame and the frame because gap is less, so when pump is used for conveying easily-crystallized medium, in the gap, cause the slough of mobile difference to occur easily, is easy to generate crystallization, influences the normal operation of pump.
The model utility content
To the deficiency of above-mentioned existing technology, the utility model technical problem to be solved promptly is: how a kind of loading and unloading that can make things convenient for pump are provided, can avoid producing between inner housing and the frame multistage centrifugal pump inner housing structure of crystallization.
In order to solve the problems of the technologies described above, adopted following technological scheme in the utility model:
A kind of multistage centrifugal pump inner housing structure; Comprise inner housing; Its characteristics are; Said inner housing appearance is provided with the cooperation section of at least two evaginations vertically, each cooperate section comprise along circumferentially be uniformly distributed with several etc. high projection, said projection outer surface is to be used for the fitting surface that matches with the frame inner chamber.
Adopt the multistage centrifugal pump inner housing structure of the utility model, it only leans on the projection appearance formation fitting surface of setting during with the frame assembling, so the less greatly area of fitting surface has reduced assembling difficulty.Make that assembling and dismounting are all more convenient.Simultaneously because the cavity clearance between the projection is bigger,, avoided the generation of medium crystallization so medium when mobile, the slough can not occur between inner housing and frame.Guaranteed the normal operation of pump.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the structure and the advantage of the utility model are done further to specify.
During practical implementation; The utility model structure is referring to Fig. 1; A kind of multistage centrifugal pump inner housing structure comprises inner housing 1, and said inner housing 1 appearance is provided with the cooperation section of at least two evaginations vertically; Each cooperate section comprise along circumferentially be uniformly distributed with several etc. high projection 2, said projection 2 outer surfaces are to be used for the fitting surface that matches with frame 3 inner chambers.
As shown in Figure 1, during practical implementation, said cooperation section can be provided with three vertically; In addition, each cooperates in the section, four of can be set to be uniformly distributed with of said projection; Under the prerequisite that promptly can guarantee preferably to cooperate, reduce assembling difficulty and avoid the generation of medium crystallization.
Claims (1)
1. multistage centrifugal pump inner housing structure; Comprise inner housing; It is characterized in that; Said inner housing appearance is provided with the cooperation section of at least two evaginations vertically, each cooperate section comprise along circumferentially be uniformly distributed with several etc. high projection, said projection outer surface is to be used for the fitting surface that matches with the frame inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204925747U CN202326438U (en) | 2011-12-01 | 2011-12-01 | Inner shell structure of multi-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204925747U CN202326438U (en) | 2011-12-01 | 2011-12-01 | Inner shell structure of multi-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326438U true CN202326438U (en) | 2012-07-11 |
Family
ID=46438419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204925747U Expired - Lifetime CN202326438U (en) | 2011-12-01 | 2011-12-01 | Inner shell structure of multi-stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326438U (en) |
-
2011
- 2011-12-01 CN CN2011204925747U patent/CN202326438U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |