CN101354043A - Variable flow centrifugal pump - Google Patents
Variable flow centrifugal pump Download PDFInfo
- Publication number
- CN101354043A CN101354043A CNA200710070182XA CN200710070182A CN101354043A CN 101354043 A CN101354043 A CN 101354043A CN A200710070182X A CNA200710070182X A CN A200710070182XA CN 200710070182 A CN200710070182 A CN 200710070182A CN 101354043 A CN101354043 A CN 101354043A
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- sheave
- wheel
- vane
- 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.)
- Withdrawn
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention relates to a structure of a centrifugal pump with variable capacity. In the centrifugal pump with a variable capacity, a pump shell is internally provided with a vane wheel and a grooved wheel; the vane wheel is fixedly provided with a vane vertical to the radial surface of the vane wheel; a vane groove vertical to the radial surface of the grooved wheel is arranged on the grooved wheel; the vane wheel and the grooved wheel can slide relatively along an axial direction and be rotationally connected with the pump shell; a stroking mechanism is arranged on the pump shell and can control the relative sliding between the vane wheel and the grooved wheel. The structure of the invention can change the discharge of the pump without a speed regulating mechanism, can control the pump to work at a constant speed, not only has no influence on the efficiency and the pump lift of the pump, but also is economical and energy-saving.
Description
Technical field
The present invention relates to fluid machinery, more particularly, relate to a kind of structure of variable flow centrifugal pump.
Background technique
Can use centrifugal pump in fluid delivery process, existing centrifugal pump can only change pump delivery by regulating rotating speed, not only can have influence on the efficient of pump, lift of pump, and need speed regulating mechanism to control.Because speed regulating mechanism such as frequency variator are of a high price, so when needing different flows, what extensively adopt now is to change pepeline characteristic by throttle valve to control, and has caused a large amount of energy wastes.
Summary of the invention
At the deficiencies in the prior art, the purpose of this invention is to provide a kind of centrifugal pump with variable function, it need not to regulate rotating speed just can change discharge capacity.
The object of the present invention is achieved like this: a kind of variable flow centrifugal pump, impeller and sheave are arranged in the pump case, be fixed with blade on the impeller perpendicular to the impeller sagittal plane, sheave is provided with the leaf groove perpendicular to the sheave sagittal plane, slide relative vertically between impeller and the sheave, and constitute with pump case and to be rotatably connected; Pump case is provided with the slide relative between stroking mechanism may command impeller and the sheave.
On above-mentioned mode of execution basis, the present invention also has following further step: described stroking mechanism is made of control valve and spring.
Advantage of the present invention is as follows:
Because slide relative vertically between impeller and the sheave, and constitute with pump case and to be rotatably connected, so, after impeller and the stressed rotation of sheave, the pump inner fluid can be thrown away the realization pumping function, with the slide relative between stroking mechanism control impeller and the sheave, thereby the effective working depth that changes the impeller upper blade can realize the variable function.Do not need speed regulating mechanism just can change pump delivery among the present invention, can make pump be controlled at work under the permanent rotating speed, neither can have influence on the efficient and the lift of pump, again economical and energy saving.
Description of drawings
Fig. 1 is the total assembling structure sectional view of the present invention;
Fig. 2 is the shell construction schematic representation;
Fig. 3 is the end cover structure schematic representation;
Fig. 4 is the live axle structural representation;
Fig. 5 is the blade wheel structure schematic representation;
Fig. 6 is the sheave structural representation.
Embodiment
Referring to accompanying drawing, a kind of variable flow centrifugal pump, the skin of pump is a pump case, fixedly constitute by screw by housing 1 and end cap 2, end cap 2 is provided with pipe interface 21, control valve 5 and thrust bearing, placed live axle 3 on the thrust bearing, placed spring 4 on the live axle 3, impeller 6 and sheave 7, be fixed with the blade 61 perpendicular to impeller 6 sagittal planes on the impeller 6, sheave 7 is provided with the leaf groove 71 perpendicular to sheave 7 sagittal planes, and spring 4 is a pressure spring, one end withstands on the shaft shoulder of live axle 3, one end withstands on the impeller 6, and impeller 6 can endwisely slip on live axle 3, and sheave 7 is fixedlyed connected with live axle 3.
When live axle 3 be driven and 7 rotations of impeller 6 and sheave after, the pump inner fluid is thrown out of the realization pumping function; Pipe interface 21 on the end cap 2 connects on the pump by pipe or the outer high low pressure fluid of pump, through 62 li of the back pressure cavity of control valve 5 to the impeller 6, when control valve 5 when 62 li of back pressure cavity are introduced high-pressure liquid, the elastic force that impeller 6 overcomes spring 4 slides to sheave 7, when control valve 5 makes back pressure cavity 62 and extraneous low-pressure fluid conducting, spring 4 can push away sheave 7 with impeller 6, in impeller 6 sliding processes, blade 61 is accompanied by impeller 6 and slides simultaneously in leaf groove 71, because effective working depth of blade 61 changes, pump delivery also changes thereupon, thereby realizes the variable function.
Claims (2)
1, a kind of variable flow centrifugal pump, it is characterized in that, impeller (6) and sheave (7) are arranged in the pump case, be fixed with blade (61) on the impeller (6) perpendicular to impeller (6) sagittal plane, sheave (7) is provided with the leaf groove (71) perpendicular to sheave (7) sagittal plane, slide relative vertically between impeller (6) and the sheave (7), and constitute with pump case and to be rotatably connected; Pump case is provided with the slide relative between stroking mechanism may command impeller (6) and the sheave (7).
2, a kind of variable flow centrifugal pump according to claim 1 is characterized in that, described stroking mechanism is made of control valve (5) and spring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710070182XA CN101354043A (en) | 2007-07-25 | 2007-07-25 | Variable flow centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710070182XA CN101354043A (en) | 2007-07-25 | 2007-07-25 | Variable flow centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101354043A true CN101354043A (en) | 2009-01-28 |
Family
ID=40306997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710070182XA Withdrawn CN101354043A (en) | 2007-07-25 | 2007-07-25 | Variable flow centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101354043A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763367A (en) * | 2017-11-16 | 2018-03-06 | 北华大学 | Screw drives centrifugal mechanical adaptive speed device |
| CN108119391A (en) * | 2016-11-30 | 2018-06-05 | 长城汽车股份有限公司 | Water pump and vehicle |
| CN112761958A (en) * | 2021-01-26 | 2021-05-07 | 俞伟光 | Variable centrifugal pump |
-
2007
- 2007-07-25 CN CNA200710070182XA patent/CN101354043A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119391A (en) * | 2016-11-30 | 2018-06-05 | 长城汽车股份有限公司 | Water pump and vehicle |
| CN107763367A (en) * | 2017-11-16 | 2018-03-06 | 北华大学 | Screw drives centrifugal mechanical adaptive speed device |
| CN107763367B (en) * | 2017-11-16 | 2023-08-01 | 北华大学 | Spiral driving centrifugal mechanical self-adaptive speed regulating device |
| CN112761958A (en) * | 2021-01-26 | 2021-05-07 | 俞伟光 | Variable centrifugal pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103883520B (en) | The rotor-type submersible pump of eccentric shaft and motor direct connection | |
| CN202851445U (en) | Impeller with variable incidence angle and diameter | |
| CN103185025A (en) | Centrifugal water pump with on-line adjustable vanes | |
| CN202833137U (en) | Double-acting vane pump | |
| CN203335420U (en) | Small-flow high-lift magnetic transmission peripheral pump | |
| CN210623012U (en) | Swash plate type axial plunger pump with pressurizing auxiliary pump | |
| CN101354043A (en) | Variable flow centrifugal pump | |
| CN203248397U (en) | Centrifugal water pump with vanes capable of being adjusted online | |
| CN102072150B (en) | Vane pump | |
| CN101208519B (en) | Waterpump | |
| CN100470059C (en) | Novel water pump | |
| CN201041162Y (en) | High speed pump | |
| CN204805099U (en) | Bulb formula helical blade through -flow pump | |
| CN104806564B (en) | Adjustable pump with adjusting device for narrowing impeller outlet | |
| CN205025701U (en) | No profit pump of rotatory four plungers of curved surface variable high pressure | |
| CN202170868U (en) | Vane pump | |
| CN206360883U (en) | GR high pressure screw pumps | |
| CN202326273U (en) | Vertical self-priming pump with fixed reversed bending impeller | |
| CN204532939U (en) | A kind of axial force balance mechanism of MD type multistage centrifugal pump | |
| CN2752492Y (en) | High-speed pump | |
| CN201943945U (en) | Vane pump | |
| CN105020131B (en) | Axial plunger pump with blade wheel structure cylinder body | |
| CN201827086U (en) | High-efficiency energy-saving vertical type pitot pump | |
| CN101629567B (en) | Gas-liquid mixing pump | |
| CN204061073U (en) | A kind of multi-functional radial pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |