CN201363315Y - Impeller case for vertical water pump - Google Patents
Impeller case for vertical water pump Download PDFInfo
- Publication number
- CN201363315Y CN201363315Y CNU2008202084552U CN200820208455U CN201363315Y CN 201363315 Y CN201363315 Y CN 201363315Y CN U2008202084552 U CNU2008202084552 U CN U2008202084552U CN 200820208455 U CN200820208455 U CN 200820208455U CN 201363315 Y CN201363315 Y CN 201363315Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- rubber pad
- water pump
- impeller housing
- inner lining
- 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 an impeller case for a vertical water pump, which comprises two half impeller cases (1), a rubber pad (20) and a stainless steel inner lining (50), wherein the rubber pad (20) is arranged between the half surfaces of the cases (1); the rubber pad (20) and the outer shell (1) are fixed by a screw bolt (30), and are positioned by a positioning pin (40); the stainless steel inner lining (50) is arranged in an inner lining groove formed inside the impeller case (1). The utility model has the advantages that the cavitation resistance performance of the impeller case is provided; the problem of water leakage between the two half surfaces is thoroughly solved; and the service life of the impeller case is prolonged.
Description
Technical field
The utility model relates to a kind of vertical water pump, relates in particular to the impeller housing of this vertical water pump.
Background technique
As seen from Figure 1: large-scale vertical pump impeller shell adopts breathes out the furan structure, and the paper washer 2 that adds 0.5 millimeter between two and half impeller housings, the 1 Hough face is used for the sealing sealing, and the general bolt 3 that directly passes through is fixed, and beats locating stud 4 location, forms complete impeller housing.
But the problem that this structure exists is: the first, in the time of the large-scale vertical water pump operation, can produce negative pressure at the impeller inlet position, and cavitation phenomenons takes place herein easily.And because the impeller of axial-flow pump is the open type blade, and when pump operation, requiring has certain clearance between blade outer rim and the impeller housing, and NBS is a thousandth of impeller diameter, because the cavitation of clearance phenomenon just takes place in the existence in gap easily.
The second, 0.5 millimeter paper washer 2 is because thickness is too thin, and is very inconvenient when mounted, the careless slightly effect that just can't reach the sealing sealing.
Summary of the invention
The utility model technical issues that need to address have provided a kind of vertical water pump impeller housing, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: two and half impeller housings; Also comprise: the rubber pad between the shell Hough face; Described rubber pad and shell are located with bolt and with locating stud; Also comprise: stainless steel inner lining; Described stainless steel inner lining is in the liner groove of impeller housing inside.
Compared with prior art, the beneficial effects of the utility model are: improved the anti-cavitation performance of impeller housing, thoroughly solved seepy question between the two Hough faces, prolonged impeller housing working life.
Description of drawings
Fig. 1 is an impeller housing structural representation in the prior art;
Fig. 2 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing 2 and embodiment the utility model is described in further detail:
As seen from Figure 2: the utility model comprises: two and half impeller housings 1; Also comprise: the rubber pad 20 between the shell 1 Hough face; Described rubber pad 20 and shell 1 usefulness bolt 30 are fixed and are located with locating stud 40; Also comprise: stainless steel inner lining 50; Described stainless steel inner lining 50 is in the liner groove of impeller housing 1 inside;
The thickness of described rubber pad 20 is between the 1.8-2.2 millimeter.
Mill the Hough face after the annealed destressing of impeller housing blank in the utility model, afterwards half impeller housing two halves are combined into integral body, rough turn impeller housing both ends of the surface and inner ball surface; Cut out the liner groove in impeller housing inside, and on the impeller housing body, get out the plug welding hole on request, meanwhile, make stainless steel inner lining, and roll shaping; Use special tool that stainless steel inner lining is headed into the liner groove that processes in the impeller housing, carry out plug welding, take impeller housing apart, the interface of welding Hough face according to welding process requirement; Check half impeller housing distortion situation, the back that meets the requirements after processing, is stained with rubber plate on one and half impeller housings at finish turning half impeller housing Hough face therein, by bolt the two halves impeller housing is connected, and makes locating stud afterwards, forms the intact leaves hub cap.
The utility model has reduced the generation of cavitation of clearance owing to adopted the strong stainless steel inner lining of anti-cavitation performance, the user of rubber plate install, better played seal action, integral body has improved the working life of impeller housing.
Claims (2)
1. a vertical water pump impeller housing comprises: two and half impeller housings (1); It is characterized in that also comprising: the rubber pad (20) between shell (1) the Hough face; Described rubber pad (20) and shell (1) are fixed with bolt (30) and are located with locating stud (40); Also comprise: stainless steel inner lining (50); Described stainless steel inner lining (50) is in the inner liner groove of impeller housing (1).
2. vertical water pump impeller housing according to claim 1 is characterized in that: the thickness of described rubber pad (20) is between the 1.8-2.2 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202084552U CN201363315Y (en) | 2008-12-30 | 2008-12-30 | Impeller case for vertical water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202084552U CN201363315Y (en) | 2008-12-30 | 2008-12-30 | Impeller case for vertical water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363315Y true CN201363315Y (en) | 2009-12-16 |
Family
ID=41473978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202084552U Expired - Fee Related CN201363315Y (en) | 2008-12-30 | 2008-12-30 | Impeller case for vertical water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201363315Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949097A (en) * | 2017-05-23 | 2017-07-14 | 苏州木山云智能科技有限公司 | A kind of impeller housing bushing |
-
2008
- 2008-12-30 CN CNU2008202084552U patent/CN201363315Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949097A (en) * | 2017-05-23 | 2017-07-14 | 苏州木山云智能科技有限公司 | A kind of impeller housing bushing |
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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: 20091216 Termination date: 20111230 |