CN2510654Y - Combined volute and variable cascade pressurized-water chamber centrifugal pump - Google Patents
Combined volute and variable cascade pressurized-water chamber centrifugal pump Download PDFInfo
- Publication number
- CN2510654Y CN2510654Y CN 02209624 CN02209624U CN2510654Y CN 2510654 Y CN2510654 Y CN 2510654Y CN 02209624 CN02209624 CN 02209624 CN 02209624 U CN02209624 U CN 02209624U CN 2510654 Y CN2510654 Y CN 2510654Y
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- CN
- China
- Prior art keywords
- centrifugal pump
- cascades
- volute
- guiding
- pump
- 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 pump in volute shell and composite water pressurized room type which can transform cascades is disclosed. The utility model has changed the volute shell water pressurized room of the traditional centrifugal pump into a volute shell water pressurized room in which guiding cascades are arranged to form a composite water pressurized room. In such a prototype of centrifugal pump volute shell, a plurality of guiding cascades in different sizes and kinds is arranged in order to satisfy the requirement from the change of the impeller diameter which is to say that the inner diameter of the guiding cascades arranged in the volute shell matches with the impeller diameter. As a result, the efficiency of the improved centrifugal pump is not reduced, but improved. Because the radial force caused when the centrifugal pump works during the service condition of departure from the designed point is eliminated with the function of guiding cascades, the efficiency and reliability of the pump are improved in some way.
Description
Technical field under the utility model: centrifugal pump
Background technique: common single, two-stage centrifugal pump
Summary of the invention: the utility model relates to a kind of spiral case and the compound setting-out cell-type of convertible leaf grating centrifugal pump.Current, in existing single, two-stage centrifugal pump structure, have two deficiencies: (1) each series product are made of several products of retrofiting that a certain raw product produces through cutting impeller (be about to impeller outer diameter diminish) back, product behind the remodeling promptly is to use with a kind of spiral case of specification and the impeller of different-diameter to combine in this way, and its deficiency is: efficient descends to some extent; (2) centrifugal pump of medium and small specific speed because of can't manufacturing the double volute pump housing, and when list, two-stage centrifugal pump are moved in off-design point operating mode, can produce the radial force that acts on the pump rotor, and the operating reliability of centrifugal pump is reduced.
The purpose of this utility model is to state the technical solution that deficiency provides for Mi fills.It is with the pumping chamber of scroll casing of existing conventional centrifugal pump, is designed to be bumped into guide-ring in pumping chamber of scroll casing, constitutes compound pumping chamber.In a kind of like this prototype centrifugal pump spiral case pump housing, the guide-ring that can be bumped into several different inner diameters sizes satisfies the requirement after impeller diameter changes, the internal diameter and the impeller diameter that promptly are bumped into the guide-ring in the pumping chamber of scroll casing are one to one, thereby the centrifugal pump efficient behind the remodeling is not only reduced, can increase on the contrary.Moreover owing to centrifugal pump produces radial force when off-design point operating mode is moved possibility has been got rid of in the effect of guide-ring.
Description of drawings:
Accompanying drawing 1: be spiral case and the compound setting-out cell-type of convertible leaf grating centrifugal pump structure schematic representation
Accompanying drawing 2: be the view of leaf grating
1 is centrifugal pump spiral casing among the figure, and 2 for being bumped into the leaf grating in the spiral case 1, and 3 is impeller;
Specific implementation method: in same series product, need in spiral case 1, be bumped into the leaf grating 2 that adapts with it corresponding to the impeller 3 of different-diameter.
Claims (1)
- A kind of spiral case and the compound setting-out cell-type of convertible leaf grating centrifugal pump is characterized in that: stud with the leaf grating (2) that adapts with impeller (3) in spiral case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02209624 CN2510654Y (en) | 2002-01-08 | 2002-01-08 | Combined volute and variable cascade pressurized-water chamber centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02209624 CN2510654Y (en) | 2002-01-08 | 2002-01-08 | Combined volute and variable cascade pressurized-water chamber centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2510654Y true CN2510654Y (en) | 2002-09-11 |
Family
ID=33690003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02209624 Expired - Fee Related CN2510654Y (en) | 2002-01-08 | 2002-01-08 | Combined volute and variable cascade pressurized-water chamber centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2510654Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110799755A (en) * | 2017-04-28 | 2020-02-14 | 流体处理有限责任公司 | Techniques for improving performance of pumps with trimmed impellers using additive manufacturing |
-
2002
- 2002-01-08 CN CN 02209624 patent/CN2510654Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110799755A (en) * | 2017-04-28 | 2020-02-14 | 流体处理有限责任公司 | Techniques for improving performance of pumps with trimmed impellers using additive manufacturing |
| CN110799755B (en) * | 2017-04-28 | 2023-11-10 | 流体处理有限责任公司 | Techniques using additive manufacturing to improve pump performance with trimmed impellers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Sun Yinghua Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |