CN203374512U - Self-balancing multiple-stage centrifugal pump with inducer - Google Patents
Self-balancing multiple-stage centrifugal pump with inducer Download PDFInfo
- Publication number
- CN203374512U CN203374512U CN201320447052.4U CN201320447052U CN203374512U CN 203374512 U CN203374512 U CN 203374512U CN 201320447052 U CN201320447052 U CN 201320447052U CN 203374512 U CN203374512 U CN 203374512U
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- China
- Prior art keywords
- inducer
- self
- centrifugal pump
- stage
- impeller
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Abstract
The utility model discloses a self-balancing multiple-stage centrifugal pump with an inducer. The self-balancing multiple-stage centrifugal pump comprises a pump case, a rotor, self-balancing impellers on the rotor, a water inlet section and a water outlet section, wherein the inducer is arranged on the rotor and located in front of the first-stage impeller and located on an outlet of the water inlet section, and the first-stage impeller is a single-suction impeller. The inducer is used in front of the single-suction first-stage impeller of the self-balancing multiple-stage centrifugal pump, cavitation performance of the self-balancing multiple-stage centrifugal pump is improved through the inducer, and the inducer can be applied to other pump products as a ready-made product. The structure of the self-balancing multiple-stage centrifugal pump not only meets the requirements for cavitation performance, but also is simple in structure and convenient to implement.
Description
Technical field
The utility model relates to the improvement of self-balanced multiple-stage centrifugal pump structure, specifically refers to a kind of self-balanced multiple-stage centrifugal pump with inducer, belongs to the centrifugal pump technical field.
Background technique
The self-balanced multiple-stage centrifugal pump impeller is arranged symmetrically with on rotor, when fluid enters impeller by inlet segment, increase along with flow velocity, according to bernoulli equation, its pressure diminishes, therefore cavitation phenomenons more easily appears in fluid when entering impeller, and life of product and performance are impacted, and therefore needs to improve the product anti-cavitation performance.Conventional self-balanced multiple-stage centrifugal pump requires high occasion in cavitation at present, usually adopting first stage impeller or the first stage impeller of particular design is that double-entry impeller meets, but it is limited that particular design first stage impeller anti-cavitation performance improves, and double-entry impeller structure concerning self-balanced multiple-stage centrifugal pump is very complicated, not too easily implement.
Summary of the invention
For the prior art above shortcomings, the purpose of this utility model is to provide a kind of enforcement simple in structure, easy, anti-cavitation performance preferably with the self-balanced multiple-stage centrifugal pump of inducer.
The technical solution of the utility model is achieved in that
With the self-balanced multiple-stage centrifugal pump of inducer, comprise pump case, rotor, epitrochanterian self balancing impeller, inlet segment, water exit end, described rotor is provided with inducer, and inducer is positioned at the first stage impeller front and is positioned at the exit position of inlet segment.
Further, described first stage impeller is single suction impeller.
The utility model is the single suction first stage impeller front for self-balanced multiple-stage centrifugal pump by inducer, inducer can improve the pressure of first stage impeller, and the anti-cavitation performance of inducer itself is stronger, therefore the liquid flowed out from inducer just has been not easy cavitation to the first stage impeller import, can improve by inducer the anti-cavitation performance of self-balanced multiple-stage centrifugal pump, and inducer there is application as off-the-shelf on other pump product.Therefore this structure has not only solved the cavitation performance requirement, and simple in structure, implements very convenient.
The accompanying drawing explanation
The self-balanced multiple-stage centrifugal pump structural representation of Fig. 1-the utility model band inducer.
The self-balanced multiple-stage centrifugal pump rotor structure schematic diagram of Fig. 2-the utility model band inducer.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1 and Fig. 2, from scheming, can find out, the self-balanced multiple-stage centrifugal pump of the utility model band inducer, comprise pump case, rotor 1, epitrochanterian self balancing impeller 2, inlet segment 3 and water exit end 4, described rotor 1 is provided with inducer 5, and inducer 5 is positioned at the first stage impeller front and is positioned at the exit position of inlet segment.Described first stage impeller is single suction impeller.
The utility model is the single suction first stage impeller front for self-balanced multiple-stage centrifugal pump by inducer, inducer can improve the pressure of first stage impeller, and the anti-cavitation performance of inducer itself is stronger, therefore the liquid flowed out from inducer just has been not easy cavitation to the first stage impeller import, can improve by inducer the anti-cavitation performance of self-balanced multiple-stage centrifugal pump, and inducer there is application as off-the-shelf on other pump product.Therefore this structure has not only solved the cavitation performance requirement, and simple in structure, implements very convenient.
The utility model can be used for different right self balancing impellers, and the epitrochanterian impeller of Fig. 2 is 3 pairs.
Above-described embodiment of the present utility model is only to be explanation the utility model example, and is not the restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make on the basis of the above description other multi-form variation and changes.Here can't give all mode of executions exhaustive.Every still row in protection domain of the present utility model of apparent variation that the technical solution of the utility model amplifies out or change that belong to.
Claims (2)
1. with the self-balanced multiple-stage centrifugal pump of inducer, comprise pump case, rotor (1), epitrochanterian self balancing impeller (2), inlet segment (3) and water exit end (4), it is characterized in that: described rotor (1) is provided with inducer (5), and inducer is positioned at the first stage impeller front and is positioned at the exit position of inlet segment.
2. the self-balanced multiple-stage centrifugal pump with inducer according to claim 1, it is characterized in that: described first stage impeller is single suction impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320447052.4U CN203374512U (en) | 2013-07-25 | 2013-07-25 | Self-balancing multiple-stage centrifugal pump with inducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320447052.4U CN203374512U (en) | 2013-07-25 | 2013-07-25 | Self-balancing multiple-stage centrifugal pump with inducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374512U true CN203374512U (en) | 2014-01-01 |
Family
ID=49837042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320447052.4U Expired - Lifetime CN203374512U (en) | 2013-07-25 | 2013-07-25 | Self-balancing multiple-stage centrifugal pump with inducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374512U (en) |
-
2013
- 2013-07-25 CN CN201320447052.4U patent/CN203374512U/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: 20140101 |
|
| CX01 | Expiry of patent term |