CN1696516A - Two stage pump in type of combining guide vane with spiral case - Google Patents
Two stage pump in type of combining guide vane with spiral case Download PDFInfo
- Publication number
- CN1696516A CN1696516A CN 200510005428 CN200510005428A CN1696516A CN 1696516 A CN1696516 A CN 1696516A CN 200510005428 CN200510005428 CN 200510005428 CN 200510005428 A CN200510005428 A CN 200510005428A CN 1696516 A CN1696516 A CN 1696516A
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- Prior art keywords
- pump
- spiral case
- guide vane
- type
- impeller
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- 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.)
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Abstract
A two stage pump in type of combining guide vane with spiral case has structure of combination mode of entrance bucket and scroll casing, symmetrical radial entrance buckets are added at impeller outlet of the scroll casing which facilitated casting and processing, and support point of the pump axle is added at sucking inlet of the pump body, the pump operates reposefully. The operation principle is that when the pump operating, combination mode of entrance bucket and scroll casing is adopted which can ensure that the liquid in the impeller has stable relative movement, a majority of kinetic energy of the high speed liquid flowed from the impeller channel is converted into pressure energy, the speed circulation of the liquid is eliminated, radial force is reduced and efficiency of the pump is improved.
Description
Technical field
The present invention relates to fluid machinery, refer in particular to two stage pump in type of combining guide vane with spiral case, be mainly used in forest fire prevention and control, mountain area, plateau remote water supply, industry is cleaned, field irrigation, places such as farm-forestry crop spraying agent.
Background technique
At present, common two-stage pump adopts the guide vane structure volume big, complex structure, and the manufacturing process difficulty, the cost height, poor performance, efficient is low, and carrying is heavy.
Summary of the invention
In order to solve the problem that existing two-stage pump exists, the invention provides a kind of two stage pump in type of combining guide vane with spiral case, its structure adopts stator, spiral case combined type, can guarantee that liquid has stable relative movement in the impeller, most of kinetic energy of the high-speed liquid that flows out from impeller channel is converted to the pressure energy, eliminate the velocity circulation of liquid, reduce radial force, improved the efficient of pump.And set up the strong point of pump shaft at pump housing suction port, the pump running is steadily.
Technological scheme of the present invention is: structure adopts stator, spiral case knockdown, sets up radially stator of symmetry properties at the runner place, impeller outlet place of spiral case, is convenient to casting and processing, sets up the strong point of pump shaft simultaneously at pump housing suction port, and the pump running steadily.Its working principle is: when pump turned round, stator, spiral case combined type can guarantee that liquid has stable relative movement in the impeller, most of kinetic energy of the high-speed liquid that flows out from impeller channel is converted to the pressure energy, eliminate the velocity circulation of liquid, reduce radial force, improved the efficient of pump.Not only hydraulic performance is outstanding for it, and is simple in structure, can use die casting, and pump housing wall is thin, and in light weight, runner is smooth, the efficient height, and low cost of manufacture, good in economic efficiency, and also product weight alleviates more than 30%.
The invention has the beneficial effects as follows: two stage pump in type of combining guide vane with spiral case, not only hydraulic performance is outstanding for it, and is simple in structure, can use die casting, pump housing wall is thin, and in light weight, runner is smooth, the efficient height, low cost of manufacture, good in economic efficiency, and also product weight alleviates more than 30%.
Description of drawings
Fig. 1 is a kind of structure principle chart of invention.
Among the figure: 1. despinner, 2. locking nut, 3. first stage impeller, 4. pump cover, 5. stator, 6. pump case, 7. impeller, 8. mechanical seal, 9. spool.
Embodiment:
In Fig. 1, impeller work when two stage pump in type of combining guide vane with spiral case axle [10] rotates, liquid enters pump cover [4] and despinner [1] inlet, liquid runs into despinner and plays racemization, liquid enters first stage impeller [3] simultaneously, the high-speed liquid that flows out from impeller channel enters pump case [6] and stator [5], because the gate vane channel area is greater than the impeller channel area, this speed per hour can be converted to the pressure energy, eliminate the velocity circulation of liquid, reduce radial force, liquid enters impeller [7] again, then by spiral case outlet, pump proper functioning.
Claims (2)
1. two stage pump in type of combining guide vane with spiral case is characterized in that: structure adopts stator, spiral case combined type, sets up radially stator of symmetry properties at the impeller outlet runner place of spiral case.
2. according to claim 1 described two stage pump in type of combining guide vane with spiral case, set up the strong point of pump shaft at pump housing suction port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510005428 CN1696516A (en) | 2004-05-17 | 2005-01-04 | Two stage pump in type of combining guide vane with spiral case |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420027056.8 | 2004-05-17 | ||
| CN200420027056 | 2004-05-17 | ||
| CN 200510005428 CN1696516A (en) | 2004-05-17 | 2005-01-04 | Two stage pump in type of combining guide vane with spiral case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1696516A true CN1696516A (en) | 2005-11-16 |
Family
ID=35349371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510005428 Pending CN1696516A (en) | 2004-05-17 | 2005-01-04 | Two stage pump in type of combining guide vane with spiral case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1696516A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403393B (en) * | 2007-10-03 | 2013-06-19 | 普拉德研究及开发股份有限公司 | System and method for improving flow in pumping systems |
| CN107120314A (en) * | 2017-06-02 | 2017-09-01 | 哈尔滨电气动力装备有限公司 | Axle envelope formula core main pump pumping chamber |
| WO2023284483A1 (en) * | 2021-07-16 | 2023-01-19 | 温岭正峰数字机电科技有限公司 | Centrifugal pump |
-
2005
- 2005-01-04 CN CN 200510005428 patent/CN1696516A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403393B (en) * | 2007-10-03 | 2013-06-19 | 普拉德研究及开发股份有限公司 | System and method for improving flow in pumping systems |
| CN107120314A (en) * | 2017-06-02 | 2017-09-01 | 哈尔滨电气动力装备有限公司 | Axle envelope formula core main pump pumping chamber |
| WO2023284483A1 (en) * | 2021-07-16 | 2023-01-19 | 温岭正峰数字机电科技有限公司 | Centrifugal pump |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |