CN102748323A - High specific speed helical centrifugal pump - Google Patents
High specific speed helical centrifugal pump Download PDFInfo
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- CN102748323A CN102748323A CN2012102290601A CN201210229060A CN102748323A CN 102748323 A CN102748323 A CN 102748323A CN 2012102290601 A CN2012102290601 A CN 2012102290601A CN 201210229060 A CN201210229060 A CN 201210229060A CN 102748323 A CN102748323 A CN 102748323A
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- centrifugal pump
- specific speed
- pump
- helico
- high specific
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Abstract
The invention provides a high specific speed helical centrifugal pump, which mainly comprises a flared port (1), a helical centrifugal impeller (2), a space guide vane (3), a shaft (4), a mechanical seal (5), a bearing (6), a submersible motor (7) and the like. The helical centrifugal pump is characterized in that: a helical centrifugal pump adopts a novel design method, both the inlet diameter (8) of the helical centrifugal impeller (2) and the outlet width (9) of the vane are more than that of the traditional helical centrifugal pump, and the hub is reduced while the specific speed increases; and the space guide vane applicable to the helical centrifugal pump is designed for a pumping chamber, and a helical volute is not adopted, and the radii of inner and outer flow lines at the outlet of the pumping chamber are remained, so that the radial size of the pump is shortened, the processing and sand removing difficulty for the space guide vane are reduced. In the common action of the novel impeller and the space guide vane, the running status of the pump in small flow is effectively improved, the shaft power of the pump is well controlled, and overload does not happen in the whole process.
Description
Technical field
The wood invention relates to a kind of helico-centrifugal pump, particularly a kind of high specific speed helico-centrifugal pump.
Background technique
At present; Known helico-centrifugal pump mainly is made up of spiral receded disk impeller and volute, and the impeller inlet of its reaping hook shape can be screwed into the solid matter that is deposited in pump inlet on one's own initiative, as screw pump; Produce the screw propulsion effect, the impeller of volute part produces centrifugal action as centrifugal pump.The specific speed of conventional helico-centrifugal pump is generally all below 300, and pump can produce noise and vibration when moving in the small flow district, and power curve increases along with the increase of flow, can not run to bigger flow; And its pumping chamber is generally the spirality volute, and not only radial dimension is big, and spiral flow channel can not machining, size shape, shows that degree of finish directly guarantees by casting, makes and the difficulty of processing thereby increased.
Summary of the invention
For addressing the above problem, the invention provides a kind of high specific speed helico-centrifugal pump.Its key is spiral receded disk impeller, spatial guide blade and submersible motor.High specific speed helico-centrifugal pump impeller can not adopt traditional screw centrifugal design method; Consider that pump can move under big flow; Impeller inlet diameter and blade exit width are all big than conventional helical centrifugal pump when design, and hub ratio reduces along with the increase of specific speed; Blade is imported and exported laying angle and is remained within the reasonable range, under the prerequisite that meets design requirement, has obtained to have the decline power curve of extreme value, has effectively controlled air horsepower.In addition; Its pumping chamber no longer adopts the spirality volute, but has designed a spatial guide blade that is applicable to helico-centrifugal pump voluntarily, uses the circular arc smooth transition in the inlet side of spatial guide blade; Keep inside and outside streamline radius constant in its outlet port; Be similar to a cylindrical shape, shortened the radial dimension of pump, reduced the processing and the sand removal difficulty of spatial guide blade.Under the acting in conjunction of novel impeller and spatial guide blade, effectively improved the operation conditions of pump when small flow, controlled the air horsepower of pump preferably, overall process does not have the overload phenomenon and takes place.
Realize that above-mentioned purpose adopted technological scheme be:
A kind of high specific speed helico-centrifugal pump; Form by import oviduct, spiral receded disk impeller, spatial guide blade, axle, mechanical seal, bearing and submersible motor etc.; It is characterized in that; Described helico-centrifugal pump has adopted new design method, and spiral receded disk impeller inlet diameter and exit width are all big than conventional helical centrifugal pump, and hub ratio reduces along with the increase of specific speed.
Described high specific speed helico-centrifugal pump, specific speed is up to more than 570;
Described high specific speed helico-centrifugal pump motor is a submersible type.
Described helico-centrifugal pump pumping chamber is a spatial guide blade;
Described spatial guide blade outlet limit keeps inside and outside streamline radius constant;
The invention has the beneficial effects as follows: increased the flow of pump, improved the mobility status in the pump, enlarged the application area of pump, effectively controlled the air horsepower of pump, overall process does not have the overload phenomenon and takes place.
The present invention is on probation through the user, and reaction effect is good.
Description of drawings
Fig. 1 is the high specific speed helico-centrifugal pump structural drawing of one embodiment of the invention.
Fig. 2 is same embodiment's an impeller axis projection.
Fig. 3 is same embodiment's a stator axis projection.
Among Fig. 1: 1. horn mouth, 2. spiral receded disk impeller, 3. spatial guide blade, 4. spool, 5. mechanical seal, 6. bearing, 7. submersible motor.
Among Fig. 2: 8. inlet diameter, 9. blade exit width.
Among Fig. 3: 10. spatial guide blade entrance edge of blade, 11. spatial guide blade exit edge of blades, streamlines go out port radius in 12., and 13. outflow lines go out port radius.
Embodiment
Fig. 1, Fig. 2 and Fig. 3 have confirmed this embodiment's high specific speed helico-centrifugal pump shape jointly.It mainly is made up of horn mouth (1), spiral receded disk impeller (2), spatial guide blade (3), axle (4), mechanical seal (5), bearing (6) and submersible motor (7) etc.; Described helico-centrifugal pump has adopted new design method, and spiral receded disk impeller (2) inlet diameter (8) and blade exit width (9) are all big than conventional helical centrifugal pump, and hub ratio reduces along with the increase of specific speed.Spatial guide blade entrance edge of blade (10) is far away from the outlet limit of spiral receded disk impeller (2), has reduced impact flow, has reduced flow losses; And the interior streamline of spatial guide blade exit edge of blade (11) goes out port radius (12) and outflow line and goes out port radius (13) and remain unchanged, and helps the processing and the casting of spatial guide blade (3).
Be specifying that embodiment was done with Fig. 1, Fig. 2 and Fig. 3 more than for the present invention; But; The present invention is not limited to the foregoing description; That describes in the foregoing description and the specification just explains principle of the present invention, and the present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improving all fall in the scope of the invention that requires protection.
Claims (5)
1. one kind high specific speed helico-centrifugal pump mainly is made up of horn mouth (1), spiral receded disk impeller (2), spatial guide blade (3), axle (4), mechanical seal (5), bearing (6) and submersible motor (7) etc.; It is characterized in that: described helico-centrifugal pump has adopted new design method, and spiral receded disk impeller (2) inlet diameter (8) and blade exit width (9) are all big than conventional helical centrifugal pump, and hub ratio reduces along with the increase of specific speed.
2. a kind of high specific speed helico-centrifugal pump according to claim 1, it is characterized in that: specific speed is up to more than 570.
3. a kind of high specific speed helico-centrifugal pump according to claim 1, it is characterized in that: motor is a submersible type.
4. a kind of high specific speed helico-centrifugal pump according to claim 1 is characterized in that: pumping chamber is spatial guide blade (3).
5. spatial guide blade according to claim 3 (3) is characterized in that: streamline radius (12) and outflow line radius (13) were constant in spatial guide blade outlet limit (11) kept.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102290601A CN102748323A (en) | 2012-06-29 | 2012-06-29 | High specific speed helical centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102290601A CN102748323A (en) | 2012-06-29 | 2012-06-29 | High specific speed helical centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102748323A true CN102748323A (en) | 2012-10-24 |
Family
ID=47028745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102290601A Pending CN102748323A (en) | 2012-06-29 | 2012-06-29 | High specific speed helical centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102748323A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927057A (en) * | 2012-11-29 | 2013-02-13 | 无锡艾比德泵业有限公司 | Cooling structure of mechanical seal of centrifugal pump |
| CN114607626A (en) * | 2021-08-25 | 2022-06-10 | 北京石头世纪科技股份有限公司 | Fan and cleaning equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3171353A (en) * | 1962-02-27 | 1965-03-02 | Kenton D Mcmahan | Centrifugal fluid pump |
| CN201027656Y (en) * | 2006-09-19 | 2008-02-27 | 邹节廉 | Speed-adjusting main feed pump of energy-saving hydraulic coupler |
| EP2233744A2 (en) * | 2009-03-24 | 2010-09-29 | Wilo Se | Centrifugal motor pump |
| CN102062118A (en) * | 2011-01-07 | 2011-05-18 | 江苏大学 | Design method for centrifugal pump impeller with high specific revolution number |
| CN102116311A (en) * | 2010-12-30 | 2011-07-06 | 上海阿波罗机械股份有限公司 | Top-level impeller on condensate extraction pump for nuclear power station |
-
2012
- 2012-06-29 CN CN2012102290601A patent/CN102748323A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3171353A (en) * | 1962-02-27 | 1965-03-02 | Kenton D Mcmahan | Centrifugal fluid pump |
| CN201027656Y (en) * | 2006-09-19 | 2008-02-27 | 邹节廉 | Speed-adjusting main feed pump of energy-saving hydraulic coupler |
| EP2233744A2 (en) * | 2009-03-24 | 2010-09-29 | Wilo Se | Centrifugal motor pump |
| CN102116311A (en) * | 2010-12-30 | 2011-07-06 | 上海阿波罗机械股份有限公司 | Top-level impeller on condensate extraction pump for nuclear power station |
| CN102062118A (en) * | 2011-01-07 | 2011-05-18 | 江苏大学 | Design method for centrifugal pump impeller with high specific revolution number |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927057A (en) * | 2012-11-29 | 2013-02-13 | 无锡艾比德泵业有限公司 | Cooling structure of mechanical seal of centrifugal pump |
| CN114607626A (en) * | 2021-08-25 | 2022-06-10 | 北京石头世纪科技股份有限公司 | Fan and cleaning equipment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121024 |