CN202391744U - Vertical-type centrifugal pump - Google Patents
Vertical-type centrifugal pump Download PDFInfo
- Publication number
- CN202391744U CN202391744U CN2011204746639U CN201120474663U CN202391744U CN 202391744 U CN202391744 U CN 202391744U CN 2011204746639 U CN2011204746639 U CN 2011204746639U CN 201120474663 U CN201120474663 U CN 201120474663U CN 202391744 U CN202391744 U CN 202391744U
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- CN
- China
- Prior art keywords
- impeller
- sealing ring
- ring
- intake pipe
- diffuser
- 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 a vertical-type centrifugal pump, which comprises a diffusor, an impeller, a flared water inlet pipe and a sealing part. The diffusor and the water inlet pipe are in spigot fit and connected through a bolt; an oblique end face is sealed by the sealing part, and the sealing part comprises an impeller sealing ring and a pump body sealing ring; the impeller sealing ring is fixedly arranged on a impeller end face; the pump body sealing ring is in clearance fit to an end face of the water inlet pipe; and a clearance is reserved between the impeller sealing ring and the pump body sealing ring. The clearance between the impeller sealing ring and the pump body sealing ring can be adjusted by adjusting a clearance between the water inlet pipe and the diffusor through the bolt so as to select different clearances according to difference of media, the clearances can be reduced by adjusting the bolt even if the sealing rings are worn, and the sealing rings can continue to be used for a water pump. In addition, operation can be guaranteed to be stable by setting an annular groove, so that clearance leakage is reduced.
Description
Technical field
The utility model relates to centrifugal pump, more particularly, relates to a kind of vertical centrifugal pump.
Background technique
Traditional vertical centrifugal pump generally comprises diffuser, be located at impeller in the diffuser, be connected at the tubaeform intake pipe of diffuser bottom, is fixedly arranged on the radial seal between impeller and the intake pipe.Because the seal clearance of this radial seal is non-adjustable, and according to different medium needs different clearance, therefore, the sealing part is easy to be worn, and then must change, and has increased maintenance time and cost.
The model utility content
To the above-mentioned shortcoming that exists in the existing technology, the purpose of the utility model provides a kind of vertical centrifugal pump, can increase sealability, and the adjusting play is to satisfy the different medium needs.
For realizing above-mentioned purpose, the utility model adopts following technological scheme:
This vertical centrifugal pump comprises diffuser, is located at impeller in the diffuser, is connected at the tubaeform intake pipe of diffuser bottom, is located at the Sealing between impeller and the intake pipe, and for seam cooperates, and it is continuous to pass through bolt between described diffuser and the intake pipe; Described Sealing is oblique end face seal, comprises impeller ring and casing ring, and impeller ring is fixedly arranged on the impeller end face, and the casing ring interference fit leaves the gap between impeller ring and the casing ring on the intake pipe end face.
Described impeller ring is provided with annular groove.
Also be provided with pad and O shape circle between described diffuser and the intake pipe.
In technique scheme, the vertical centrifugal pump of the utility model comprises diffuser, impeller, tubaeform intake pipe, for seam cooperates, and links to each other through bolt between the Sealing, diffuser and intake pipe; Sealing is oblique end face seal, comprises impeller ring and casing ring, and impeller ring is fixedly arranged on the impeller end face, and the casing ring interference fit leaves the gap between impeller ring and the casing ring on the intake pipe end face.Regulate gap between intake pipe and the diffuser through bolt, can adjust the gap between impeller ring and the casing ring, thus can be according to the difference of medium; Select different clearance; Even seal wears also can be through bolt adjustment reducing gap, raw water service pump continues to use.In addition, can also guarantee to operate steadily, reduce clearance leakage through annular groove is set.
Description of drawings
Fig. 1 is the vertical centrifugal pump structure sectional view of the utility model.
Embodiment
Further specify the technological scheme of the utility model below in conjunction with accompanying drawing and embodiment.
See also shown in Figure 1; Vertical centrifugal pump of the utility model and existing technology something in common do; Equally also comprise diffuser 1, be located at impeller 2 in the diffuser 1, be connected at the tubaeform intake pipe 3 of diffuser 1 bottom, be located at the Sealing between impeller 2 and the intake pipe 3.Different is; For seam cooperates, and link to each other between described diffuser 1 and the intake pipe 3, regulate between the intake pipe 3 that can make and the diffuser 1 axially relatively moving through bolt 4 through bolt 4; And between diffuser 1 and intake pipe 3, also be provided with pad 5 and O shape circle 6, seal.And described Sealing is oblique end face seal; Comprise impeller ring 7 and casing ring 8; Impeller ring 7 is fixedly arranged on impeller 2 end faces, and casing ring 8 interference fit leave certain clearance between impeller ring 7 and the casing ring 8 on intake pipe 3 end faces.Regulate gap between intake pipe 3 and the diffuser 1 through bolt 4, can adjust the gap between impeller ring 7 and the casing ring 8, thus can be according to the difference of medium; Select different clearance; Even seal wears also can reduce the gap through bolt 4 adjustment, raw water service pump continues to use; Thereby overcome the out of use shortcoming in conventional seals ring wearing and tearing back, saved maintenance time and cost.In addition, on described impeller ring 7, be provided with annular groove, operate steadily, reduce clearance leakage in order to assurance.Hand hole cover 9 also is housed, with convenient maintenance on intake pipe 3.
In sum, adopt the vertical centrifugal pump of the utility model, can the lift-off seal effect, controlled reducing of flow effectively, guaranteed the stability of the flow of pump.
Those of ordinary skill in the art will be appreciated that; Above embodiment is used for explaining the utility model; And be not the qualification that is used as the utility model; As long as in the connotation scope of the utility model, all will drop in claims scope of the utility model the above embodiment's variation, modification.
Claims (3)
1. vertical centrifugal pump comprises diffuser, is located at impeller in the diffuser, is connected at the tubaeform intake pipe of diffuser bottom, is located at the Sealing between impeller and the intake pipe, it is characterized in that:
For seam cooperates, and link to each other between described diffuser and the intake pipe through bolt;
Described Sealing is oblique end face seal, comprises impeller ring and casing ring, and impeller ring is fixedly arranged on the impeller end face, and the casing ring interference fit leaves the gap between impeller ring and the casing ring on the intake pipe end face.
2. vertical centrifugal pump as claimed in claim 1 is characterized in that:
Described impeller ring is provided with annular groove.
3. vertical centrifugal pump as claimed in claim 1 is characterized in that:
Also be provided with pad and O shape circle between described diffuser and the intake pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204746639U CN202391744U (en) | 2011-11-24 | 2011-11-24 | Vertical-type centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204746639U CN202391744U (en) | 2011-11-24 | 2011-11-24 | Vertical-type centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391744U true CN202391744U (en) | 2012-08-22 |
Family
ID=46666674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204746639U Expired - Lifetime CN202391744U (en) | 2011-11-24 | 2011-11-24 | Vertical-type centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202391744U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237776A (en) * | 2017-08-09 | 2017-10-10 | 江苏海天科技有限公司 | A kind of plastic cutter formula sealing ring |
| CN110081018A (en) * | 2019-05-23 | 2019-08-02 | 湖南机电职业技术学院 | Assembled guide vane formula pump |
-
2011
- 2011-11-24 CN CN2011204746639U patent/CN202391744U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237776A (en) * | 2017-08-09 | 2017-10-10 | 江苏海天科技有限公司 | A kind of plastic cutter formula sealing ring |
| CN110081018A (en) * | 2019-05-23 | 2019-08-02 | 湖南机电职业技术学院 | Assembled guide vane formula pump |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |