CN202955039U - Centrifugal pump cover - Google Patents
Centrifugal pump cover Download PDFInfo
- Publication number
- CN202955039U CN202955039U CN 201220646489 CN201220646489U CN202955039U CN 202955039 U CN202955039 U CN 202955039U CN 201220646489 CN201220646489 CN 201220646489 CN 201220646489 U CN201220646489 U CN 201220646489U CN 202955039 U CN202955039 U CN 202955039U
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- CN
- China
- Prior art keywords
- mechanical seal
- centrifugal pump
- pump cover
- pump
- seal cavity
- 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 a centrifugal pump cover. The centrifugal pump cover comprises a center through hole arranged in the pump cover, wherein one side, facing a centrifugal pump body, of the center through hole is provided with a mechanical seal cavity communicated with the center through hole; the mechanical seal cavity is in the shape of a bell mouth; and the big end of the mechanical seal cavity is located at the side of the centrifugal pump body. As the mechanical seal cavity is in the shape of a bell mouth, the space of the mechanical seal cavity is enlarged and therefore, in use of the centrifugal pump cover, if a medium contains particle materials, the friction between the particle materials and mechanical seal does not occur easily and the mechanical seal is not damaged; and in addition, the self-owned flushing water in the pump body can enter the mechanical seal cavity very easily so as to cool a lubrication mechanical seal, so that a device for drawing water out of a pump outlet to flush can be omitted, the cost is saved and the installation is simple and convenient.
Description
Technical field
The utility model relates to centrifugal pump, specifically a kind of centrifugal pump cover.
Background technique
Horizontal single-stage centrifugal pump as shown in Figure 1, comprise the pump housing 1, impeller 2, pump cover 3, machine sealed cover 4, suspension 5 and axle 6, pump cover 3 is fixed on a side of the pump housing 1, form the pump chamber that impeller 2 is installed between pump cover 3 and the pump housing 1, suspension 5 is fixed on a side of pump cover 3, axle 6 is bearing in suspension 5 by bearing and an end of axle 6 stretches in pump chamber, impeller 2 is arranged in the pump chamber of the pump housing 1 and is fixed on the end of axle 6, be provided with the machine sealing chamber 7 that mechanical seal is installed between pump cover 3 and axle 6, the outside of pump cover 3 is equipped with the machine sealed cover 4 of positioning mechanical sealing.
The machine sealing chamber 7 of above-mentioned centrifugal pump cover 3 is cylindrical, and space is less, if, while containing particulate matter in medium in use, easily cause the friction of particulate matter and mechanical seal, causes the damage of mechanical seal, and centrifugal pump is leaked; In addition, for cooling and lubrication mechanical seal, also between the outlet of the pump housing 1 and machine sealed cover 4, Rinsing unit is installed, rinse mechanical seal from outlet diversion to the machine sealed cover 4 of the pump housing 1, this structure has not only increased the manufacture cost of centrifugal pump, and installs loaded down with trivial details.
Summary of the invention
The utility model, for the problems referred to above, provides a kind of centrifugal pump cover that can protect mechanical seal.
According to the technical solution of the utility model: a kind of centrifugal pump cover, comprise the central through bore be arranged on described pump cover, described central through bore is provided with towards a side of centrifugal pump body the machine sealing chamber be connected with described central through bore, described machine sealing chamber is toroidal, and the large end of described machine sealing chamber is positioned at a side of described centrifugal pump body.
The cone angle of described machine sealing chamber is 30 °.
Technique effect of the present utility model is: the machine sealing chamber in the utility model is toroidal, strengthened the space of machine sealing chamber, if in use in medium, contain particulate matter, also be not easy to occur the friction between particulate matter and mechanical seal, can not cause the infringement of mechanical seal; In addition, in the pump housing, the sparge water of self can be easy to enter in machine sealing chamber, and cooling and lubricating mechanical seal so just can be saved the device rinsed from the pump discharge diversion, has not only saved cost, but also makes to install easier.
The accompanying drawing explanation
The structural representation that Fig. 1 is centrifugal pump of the prior art.
Fig. 2 is the structural representation that centrifugal pump of the present utility model is installed.
Fig. 3 is structure cross-sectional schematic of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described.
In Fig. 1～Fig. 3, comprise the pump housing 1, impeller 2, pump cover 3, machine sealed cover 4, suspension 5, axle 6, machine sealing chamber 7, central through bore 8 etc.
As shown in Figure 2, it is a kind of centrifugal pump of the present utility model that is equipped with, comprise the pump housing 1, impeller 2, pump cover 3, machine sealed cover 4, suspension 5 and axle 6, pump cover 3 is fixed on a side of the pump housing 1, form the pump chamber that impeller 2 is installed between pump cover 3 and the pump housing 1, suspension 5 is fixed on a side of pump cover 3, axle 6 is bearing in suspension 5 by bearing and an end of axle 6 stretches in pump chamber, impeller 2 is arranged in the pump chamber of the pump housing 1 and is fixed on the end of axle 6, be provided with the machine sealing chamber 7 that mechanical seal is installed between pump cover 3 and axle 6, the outside of pump cover 3 is equipped with the machine sealed cover 4 of positioning mechanical sealing.
As shown in Figure 3, pump cover 3 in above-mentioned centrifugal pump, comprise the central through bore 8 be arranged on pump cover 3, be provided with towards a side of centrifugal pump body 1 machine sealing chamber 7 be connected with central through bore 8 at central through bore 8, this machine sealing chamber 7 is toroidal, and the large end of machine sealing chamber 7 is positioned at a side of centrifugal pump body 1.The cone angle of machine sealing chamber 7 is preferably 30 °.
Claims (2)
1. a centrifugal pump cover, comprise the central through bore (8) be arranged on described pump cover (3), described central through bore (8) is provided with towards a side of centrifugal pump body (1) machine sealing chamber (7) be connected with described central through bore (8), it is characterized in that: described machine sealing chamber (7) is toroidal, and the large end of described machine sealing chamber (7) is positioned at a side of described centrifugal pump body (1).
2. according to centrifugal pump cover claimed in claim 1, it is characterized in that: the cone angle of described machine sealing chamber (7) is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646489 CN202955039U (en) | 2012-11-29 | 2012-11-29 | Centrifugal pump cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646489 CN202955039U (en) | 2012-11-29 | 2012-11-29 | Centrifugal pump cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202955039U true CN202955039U (en) | 2013-05-29 |
Family
ID=48460615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220646489 Expired - Fee Related CN202955039U (en) | 2012-11-29 | 2012-11-29 | Centrifugal pump cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202955039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927056A (en) * | 2012-11-29 | 2013-02-13 | 无锡艾比德泵业有限公司 | Centrifugal pump cover |
-
2012
- 2012-11-29 CN CN 201220646489 patent/CN202955039U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927056A (en) * | 2012-11-29 | 2013-02-13 | 无锡艾比德泵业有限公司 | Centrifugal pump cover |
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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: 20130529 Termination date: 20211129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |