CN204677505U - Centrifugal pump body suction chamber speedup structure - Google Patents
Centrifugal pump body suction chamber speedup structure Download PDFInfo
- Publication number
- CN204677505U CN204677505U CN201520299359.3U CN201520299359U CN204677505U CN 204677505 U CN204677505 U CN 204677505U CN 201520299359 U CN201520299359 U CN 201520299359U CN 204677505 U CN204677505 U CN 204677505U
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- China
- Prior art keywords
- suction chamber
- runner
- volute body
- pump
- intake pipe
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of centrifugal pump body suction chamber speedup structure, it comprises the intake pipe being located at pump housing side, and the suction chamber between the built-in runner of the pump housing and pump shaft bore.The built-in volute body runner of described suction chamber, the Hand of spiral of this volute body runner is contrary with pump housing runner direction, and the basic circle center of suction chamber volute body runner is coaxial with pump shaft bore.Described intake pipe directly docks with the radial opening of suction chamber volute body runner.In order to make, the miscarriage of the liquid of introducing is raw prewhirls, basic circle central horizontal line difference angle α=6 of the center line of intake pipe and suction chamber volute body runner ° ~ 10 ° are arranged, this liquid stream accelerated through prewhirling directly improves the suction condition of impeller, reaches to reduce liquid and flow to object into suction eye resistance.The utility model structure is simple, it is effective to prewhirl, and the cooling waterpump being applicable to all size is supporting.
Description
Technical field
The utility model relates to a kind of Curve guide impeller of hydraulic machinery structure, and specifically, the utility model relates to a kind of Curve guide impeller for centrifugal pump body, particularly for the Curve guide impeller of supporting cooling water pump of combustion engine pump housing suction chamber speedup structure.
Background technique
The supporting cooling waterpump of internal-combustion engine is a kind of typical small flow centrifugal pump, although pump volume is little, the pump housing coordinates with the impeller of rotation the basic structure being still centrifugal pump, and both are indispensable.The pump housing of centrifugal pump mainly contains two effects in the structure, and one is by the import of orderly for liquid to be output guide vane wheel, and two is exported by high velocity liquid stream by the impeller rotated in the pump housing, and it is the process of pressure energy that this kind of work is actually kinetic transformation.The centrifugal pump body configuration runner of prior art is volute body, and the suction chamber adjacent with runner is then the disc cavity centered by pump shaft, and this kind of structure is simple, regular shape, is conducive to cast form, and can meets the supporting requirement of internal-combustion engine.But the centrifugal pump of configuration disc suction chamber is not good for suction eye liquid stream fluidised form, its reason is wall friction and significantly underspeeding in the liquid and suction chamber that at the uniform velocity flow, because rubbing minimum therefore flow velocity is the fastest in the middle part of liquid stream.The liquid hydraulic loss of differential flowing is comparatively large, and particularly along the liquid not work done of suction chamber outer wall circulation turn, its result directly has a negative impact to the hydraulic performance of pump and mechanical property.Although the supporting cooling waterpump power of internal-combustion engine is little, therefore client requires very high to the energy-saving index of match equipment, otherwise affects supporting purpose.
Model utility content
The utility model is mainly for the deficiencies in the prior art, propose a kind of centrifugal pump body suction chamber speedup structure, it is by suction chamber runner design, guides suction chamber to cross flowing liquid generation and prewhirls and accelerate, the direct suction condition improving suction eye, reaches the object reducing liquid flowing resistance.
The utility model is achieved through the following technical solutions technical goal.
Centrifugal pump body suction chamber speedup structure, it comprises the intake pipe being located at pump housing side, and the suction chamber between the built-in runner of the pump housing and pump shaft bore.Its improvements are: the built-in volute body runner of described suction chamber, and the Hand of spiral of this volute body runner is contrary with pump housing runner direction, and the volute body runner basic circle center of suction chamber is coaxial with pump shaft bore.Described intake pipe directly docks with the radial opening of suction chamber volute body runner.
As further improvement project, the center line of described intake pipe and basic circle central horizontal line difference angle α=6 of suction chamber volute body runner ° ~ 10 °, intake pipe is biased the liquid stream that is conducive to sucking along the turn of suction chamber volute body runner.
The utility model compared with prior art, has following good effect:
1, suction chamber makes volute body runner into, and structure is simple, manufacturing processes customary does not have manufacture difficulty, does not increase manufacture cost;
2, the suction chamber of volute body runner is led through flowing liquid and produces and prewhirl, and the liquid resistance obtaining certain kinetic energy is little, and the liquid stream accelerating to enter impeller is efficiently exported by impeller.
Accompanying drawing explanation
Fig. 1 is the utility model construction profile floor map.
Fig. 2 is Figure 1A-A generalized section.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described in further detail.
Centrifugal pump body suction chamber speedup structure shown in Fig. 1 and Fig. 2, it is one of parts of supporting cooling water pump of combustion engine.This speedup structure comprises the intake pipe 1.1 being located at pump housing side, and the suction chamber 1.3 between pump housing runner 1.2 and pump shaft bore 1.4.In order to reduce the invalid eddy flow amount of pump housing suction chamber 1.3, suction chamber 1.3 is designed to built-in volute body runner by the utility model, the Hand of spiral of this volute body runner and pump housing runner 1.2 Hand of spiral and contrary.As shown in Figure 1, the present embodiment middle pump body runner 1.2 is for turning clockwise, and pump housing runner 1.2 is to upper offset.Suction chamber 1.3 volute body runner for being rotated counterclockwise, suction chamber 1.3 volute body runner biased downward.The radial opening of suction chamber 1.3 volute body runner directly docks intake pipe 1.1, and this passage introduces unique passage of liquid to be output as the pump housing.The structure characteristic of this passage is the center line of intake pipe 1.1 and the basic circle central horizontal line disalignment of suction chamber 1.3 volute body runner, and between two lines, difference angle is α.The present embodiment is the cooling waterpump of supporting 480 diesel engines, its power is relatively little, article two, angle [alpha]=6 ° between line, the liquid stream that can realize intake pipe 1.1 introducing screws in along the Hand of spiral of suction chamber 1.3 volute body runner, the liquid flow volume screwed in from large to small, liquid stream by compression accelerates the suction port of precession impeller, and this liquid stream accelerated through prewhirling directly improves the suction condition of suction eye, reaches to reduce liquid and flow to object into suction eye resistance.Through the improvement of this structure, the present embodiment is when running at full capacity, and pump shaft power 0.9kw, compares than prior art same specification product and reduce 0.15kw, raise the efficiency 16%.
The utility model does not limit by above-described embodiment, and the cooling waterpump that can meet different capacity is supporting, and be only that the larger α angle of then selecting of supporting cooling waterpump power is larger, its effect is similar with above-described embodiment, therefore no longer repeated description.
Claims (2)
1. a centrifugal pump body suction chamber speedup structure, it comprises the intake pipe (1.1) being located at pump housing side, and the suction chamber (1.3) between the built-in runner of the pump housing (1.2) and pump shaft bore (1.4); It is characterized in that: the built-in volute body runner of described suction chamber (1.3), the Hand of spiral of this volute body runner is contrary with pump housing runner (1.2) direction, and the volute body runner basic circle center of suction chamber (1.3) is coaxial with pump shaft bore (1.4); Described intake pipe (1.1) directly docks with the radial opening of suction chamber (1.3) volute body runner.
2. centrifugal pump body suction chamber speedup structure according to claim 1, is characterized in that: the center line of described intake pipe (1.1) and basic circle central horizontal line difference angle α=6 of suction chamber (1.3) volute body runner ° ~ and 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520299359.3U CN204677505U (en) | 2015-05-07 | 2015-05-07 | Centrifugal pump body suction chamber speedup structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520299359.3U CN204677505U (en) | 2015-05-07 | 2015-05-07 | Centrifugal pump body suction chamber speedup structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677505U true CN204677505U (en) | 2015-09-30 |
Family
ID=54177201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520299359.3U Expired - Fee Related CN204677505U (en) | 2015-05-07 | 2015-05-07 | Centrifugal pump body suction chamber speedup structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204677505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692125A (en) * | 2019-03-12 | 2020-09-22 | 爱三工业株式会社 | Centrifugal pump |
-
2015
- 2015-05-07 CN CN201520299359.3U patent/CN204677505U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692125A (en) * | 2019-03-12 | 2020-09-22 | 爱三工业株式会社 | Centrifugal pump |
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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: 20150930 Termination date: 20200507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |