CN2744860Y - Guide vane type self-suction centrifugal pump with strong gas-liquid separation function - Google Patents
Guide vane type self-suction centrifugal pump with strong gas-liquid separation function Download PDFInfo
- Publication number
- CN2744860Y CN2744860Y CN 200420107924 CN200420107924U CN2744860Y CN 2744860 Y CN2744860 Y CN 2744860Y CN 200420107924 CN200420107924 CN 200420107924 CN 200420107924 U CN200420107924 U CN 200420107924U CN 2744860 Y CN2744860 Y CN 2744860Y
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- CN
- China
- Prior art keywords
- impeller
- pump
- guide vane
- centrifugal pump
- self
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Abstract
The utility model relates to a centrifugal pump, particularly a guide vane type self-suction centrifugal pump with a strong gas-liquid separation function. The existing internal-external mixing type centrifugal pump used in a market generates a self-suction function by self-rotation of a centrifugal impeller, but the design of the existing centrifugal pump is limited by pump lift, and the existing centrifugal pump con not realize the self-suction function during low pump lift with large flow capacity. In order to solve the technical problems, the utility model has the following technical proposals that the centrifugal pump comprises a pump body with an inner cavity, an impeller in the pump body, and a pump shaft which drives the impeller to rotate, wherein the pump body is respectively provided with a liquid inlet channel and a liquid outlet channel which are communicated with the inner cavity, and the position of the lower part of the pump cavity, which is below the impeller, is provided with a liquid storing chamber; a guide vane corresponding to the impeller is arranged in the pump cavity, and guide vane sheets are arranged on the guide vane, wherein the rotary direction of each guide vane sheet is opposite to that of an impeller vane; a flow channel of which the inlet faces to the periphery of the impeller is formed between every two vane, a radial clearance is formed between the impeller and each guide vane sheet. The utility model has the advantages of simple structure, small volume, and can realize the self-suction function under the conditions of high ratio, large flow capacity and low pump lift.
Description
[technical field]
The utility model relates to centrifugal pump, particularly a kind of powerful gas-liquid separation stator formula self-priming centrifugal pump.
[background technique]
Common self priming centrifugal pump is divided three classes, and the first kind is a supporting self-priming apparatus on Ordinary Centrifugal Pumps; Second class is that the liquid-ring vacuum wheel is installed on centrifugal pump; The 3rd class is to improve centrifugal pump body, relies on centrifugal impeller self rotation to produce the self-priming effect, and this pump also is to use more so-called inside and outside mixing centrifugal pump in the market.Disadvantages such as there is the self-priming weak effect in wherein preceding two class centrifugal pumps, and are bulky, the 3rd class formation compactness, volume is little, and self-priming performance is better, but design is limited by lift, lift is high more, and it is easy more to design, otherwise the big flow low-lift pump of design can't be realized self-absorption function.Generally, as the specific speed n of designed pump
s, just be difficult to realize self-priming at＞120 o'clock.
[model utility content]
Goal of the invention of the present utility model provide a kind of simple in structure, volume is small and exquisite and can realize the centrifugal pump of self-priming when high specific speed and big flow, low lift.
The technological scheme that the prior art problem that solves the utility model adopts is: a kind of powerful gas-liquid separation stator formula self-priming centrifugal pump, comprise the pump housing of being with inner chamber, the pump shaft that impeller in the pump housing and impeller are rotated, have the feed pathway and the liquid outlet channel that are communicated with inner chamber on the pump housing, it is characterized in that described pump chamber bottom is lower than the impeller place liquid storage room is set, be provided with stator in the pump chamber corresponding to impeller, stator is provided with the rotation direction guide vane opposite with impeller blade, form the runner of inlet face between each blade, maintain radial clearance between guide vane and the impeller to the impeller outer circumferential side.Can preserve certain amount of fluid in the liquid storage room of pump chamber bottom, when pump shaft begins the impeller high speed rotating, under centrifugal action, with liquid in the liquid storage room and feed pathway, air in the pump chamber forms gas-liquid mixture in the intake impeller together, runner exit by impeller is conveyed in the gate vane channel, owing to leave radial clearance between guide vane and the impeller, the gas-liquid mixture of impeller output all separates once in every guide vane, separate from gas-liquid mixture through lighter gas after separating, overflow by gate vane channel outlet and pump housing liquid outlet channel, heavier liquid turns back in the pump chamber and mixes again with the gas that sucks, continue to separate and discharge gas, so the gas that circulates repeatedly in feed pathway and pump chamber drains fully, liquid to be carried is full of pump chamber, and centrifugal pump changes normal transfusion working state automatically over to.
Guide vane number described in the utility model and impeller blade number equate.In addition, guide vane number and impeller blade number also can be unequal.
Radial clearance between guide vane described in the utility model and the impeller is 0.2～3mm.
The more existing inside and outside mixing centrifugal pump structure of the utility model centrifugal pump structure is greatly simplified, need not design volute, return port, cut water, pumping chamber, labyrinths such as diffusing tube, more need not to add any auxiliary device, by changing the pump housing internal structure stator is set, can finish self-priming, be transferred to the transfusion working state then automatically, the utility model centrifugal pump has overcome the defective that big in the past flow, low-lift centrifugal pump are difficult to finish self-priming.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
[description of drawings]
Fig. 1: structural representation of the present utility model.
Fig. 2: the schematic representation of stator.
The sectional view of Fig. 3: Fig. 2.
Among the figure: 1. the pump housing, 2. stator, 3. impeller, 4. liquid storage room, 5. gas-liquid separation chamber, 6. gate vane channel import, 7. gate vane channel outlet, 8. guide vane, 9. pump shaft.
[embodiment]
As shown in Figure 1, a kind of powerful gas-liquid separation stator formula self-priming centrifugal pump, comprise the pump housing 1 of being with inner chamber, the pump shaft 9 that impeller 3 in the pump housing and impeller are rotated, have the feed pathway and the liquid outlet channel that are communicated with inner chamber on the pump housing, it is liquid storage room 4 that described pump chamber bottom is lower than the impeller place, pump chamber top is gas-liquid separation chamber 5, be provided with stator 2 in the pump chamber corresponding to impeller, stator is provided with the rotation direction guide vane opposite with impeller blade 8, forms the runner of inlet face to the impeller outer circumferential side between each blade, and the runner inboard is gate vane channel import 6, the outside is gate vane channel outlet 7, maintains the radial clearance of 0.5mm between guide vane and the impeller 3.
Because liquid storage room is lower than impeller, remove when using for the first time and need add small amount of liquid, after each later on the use, all can keep certain amount of fluid in the liquid storage room, when pump shaft begins the impeller high speed rotating, under centrifugal action, liquid in the liquid storage room and the air in the feed pathway are formed gas-liquid mixture in the intake impeller together, outlet flow by impeller is conveyed in the gate vane channel, owing to leave radial clearance between guide vane and the impeller, the gas-liquid mixture of impeller output all separates once in every guide vane, separate from gas-liquid mixture through lighter gas after separating, overflow by gate vane channel and pump housing liquid outlet channel successively, heavier liquid get back in the pump chamber with feed pathway in the gas that sucks mix again, continue to separate and also discharge gas, so the gas that circulates repeatedly in feed pathway and pump chamber drains fully, wait to carry liquid to be full of pump chamber fully, centrifugal pump is transferred to normal transfusion working state automatically.
Claims (3)
1, a kind of powerful gas-liquid separation stator formula self-priming centrifugal pump, comprise the pump housing (1) of being with inner chamber, the pump shaft (9) that impeller (3) in the pump housing and impeller are rotated, have the feed pathway and the liquid outlet channel that are communicated with inner chamber on the pump housing, it is characterized in that described pump chamber bottom is lower than the impeller place liquid storage room (4) is set, be provided with stator (2) in the pump chamber corresponding to impeller, stator is provided with the rotation direction guide vane opposite with impeller blade (8), form the runner of inlet face to the impeller outer circumferential side between each blade, guide vane and impeller maintain radial clearance between (3).
2, powerful gas-liquid separation stator formula self-priming centrifugal pump according to claim 1 is characterized in that described guide vane (8) number and impeller (3) lobe numbers equate.
3, powerful gas-liquid separation stator formula self-priming centrifugal pump according to claim 1 is characterized in that the radial clearance between described guide vane (8) and the impeller (3) is 0.2～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420107924 CN2744860Y (en) | 2004-11-01 | 2004-11-01 | Guide vane type self-suction centrifugal pump with strong gas-liquid separation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420107924 CN2744860Y (en) | 2004-11-01 | 2004-11-01 | Guide vane type self-suction centrifugal pump with strong gas-liquid separation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2744860Y true CN2744860Y (en) | 2005-12-07 |
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ID=35579641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420107924 Expired - Lifetime CN2744860Y (en) | 2004-11-01 | 2004-11-01 | Guide vane type self-suction centrifugal pump with strong gas-liquid separation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2744860Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819157A (en) * | 2015-04-21 | 2015-08-05 | 江苏大学 | Self-suction centrifugal pump |
| CN111894856A (en) * | 2020-09-02 | 2020-11-06 | 大连深蓝泵业有限公司 | Guide vane type small flow centrifugal pump |
-
2004
- 2004-11-01 CN CN 200420107924 patent/CN2744860Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819157A (en) * | 2015-04-21 | 2015-08-05 | 江苏大学 | Self-suction centrifugal pump |
| CN104819157B (en) * | 2015-04-21 | 2017-09-26 | 江苏大学 | A kind of self priming centrifugal pump |
| CN111894856A (en) * | 2020-09-02 | 2020-11-06 | 大连深蓝泵业有限公司 | Guide vane type small flow centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141101 Granted publication date: 20051207 |