CN2703149Y - Self-priming pump - Google Patents
Self-priming pump Download PDFInfo
- Publication number
- CN2703149Y CN2703149Y CN 200420040818 CN200420040818U CN2703149Y CN 2703149 Y CN2703149 Y CN 2703149Y CN 200420040818 CN200420040818 CN 200420040818 CN 200420040818 U CN200420040818 U CN 200420040818U CN 2703149 Y CN2703149 Y CN 2703149Y
- Authority
- CN
- China
- Prior art keywords
- pump
- novel self
- priming pump
- priming
- liquid
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a novel self-priming pump, comprising a pump body (1) and an impeller (2) inside the pump body (1). A partition board (5) is arranged inside the pump body (1). A discharging cavity inside the pump body (1) is divided into a liquid returning cavity (3) and a gas-liquid separation chamber (4). Due to the fact that the structure of the novel self-priming pump is largely simplified, and a defect rate is obviously reduced. The ancillary equipment of a bottom valve, a vacuum pump, a gas separator, etc. is not needed. Beside that liquid is needed to be injected into the novel self-priming pump when the novel self-priming pump is started for a first time, and the liquid is not needed to be injected into the novel self-priming pump when the novel self-priming pump is started repeatedly. The novel self-priming pump has convenient operation and use, strong functional restoration capability, stronger gas-priming capacity, flat characteristic curves, and high efficiency. Gas mixing with a medium is allowed, and cavitation erosion does not easily generate. The novel self-priming pump is suitable for the occasions of the liquid containing the gas conveying, machine frequent starting, machine stopping, and work moving.
Description
Technical field the utility model relates to a kind of liquid pump, specifically, is a kind of self-priming pump of new structure.
The self-priming pump that background technique is existing, the pump housing generally adopt case structure, and inside is provided with exhaust cavity specially, are used for the self-priming process and discharge the interior gas of the pump housing.Because the exhaust cavity volume is big, the internal structure complexity, not only casting difficulty, and make the weight and volume of pump big, heavy, and whole manufacture cost is higher.
Model utility content the purpose of this utility model is to overcome the deficiency of above-mentioned existing like product, and provide a kind of self-priming pump of new structure, obviously simplifying under the prerequisite of pump housing internal structure, guarantee that it has higher working efficiency and stronger functional rehabilitation ability.
To achieve these goals, the utility model has adopted following technological scheme.
A kind of self-priming pump comprises the pump housing, the impeller of pump housing inside, and its specialization is: in pump housing inside one dividing plate is set, discharge side in the pump housing is divided into go back to sap cavity and gas-liquid separation chamber.
Before the pump startup, certain amount of fluid is arranged in the pump housing.Behind the pump startup,, return inlet's recirculation of impeller through time sap cavity because wheel rotation under centrifugal action, is got rid of liquid into the pump housing.In the continuous circuit process of liquid, gradually the air in the suction pipe is taken in the circuit liquid stream, form gas-liquid mixture, these gas-liquid mixtures are transported to by impeller that gas-liquid separation is indoor to be separated, gas overflows from exhaust port, and liquid then returns inlet's recirculation of impeller.Circulation so continuously is till taking out the air in the suction pipe most back proper functioning.
Compare with existing like product, the utlity model has following characteristics:
(1), structure simplified significantly, rate of fault obviously reduces;
(2), this kind self-priming pump do not need supplementary equipment such as bottom valve, vacuum pump, gas separator, except that injecting the liquid when just starting, repeated priming no longer needs fluid injection, and is easy for operation;
(3), the functional rehabilitation ability is strong, allows to be mixed with gas in the medium, has stronger gettering ability.
(4), characteristic curve is smooth, efficient height, the difficult cavitation erosion.
(5), be fit to transporting low temperature or high-temp liquid, neutrality or corrosive liquids clean or contain the liquid of solid particle, are specially adapted to carry the liquid that contains gas, and frequent starting, shut down and the occasion of mobile working.
Description of drawings Fig. 1 is a structural representation of the present utility model.
Embodiment as shown in Figure 1, the utility model comprises the impeller 2 of the pump housing 1 and the pump housing 1 inside, in the upper end of the pump housing 1 exhaust port 6 is arranged.Wherein impeller 2 connects with pump shaft by flat key and rotates with axle.
Inner at the pump housing 1 by casting one dividing plate 5, discharge side in the pump housing 1 is divided into go back to sap cavity 3 and gas-liquid separation chamber 4.Its central diaphragm 6 links with the both ends of the surface of the pump housing 1.
Claims (1)
1, a kind of self-priming pump comprises the pump housing (1), and the impeller (2) that the pump housing (1) is inner is characterized in that: in the pump housing (1) inside one dividing plate (5) is set, the interior discharge side of the pump housing (1) is divided into go back to sap cavity (3) and gas-liquid separation chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040818 CN2703149Y (en) | 2004-05-24 | 2004-05-24 | Self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040818 CN2703149Y (en) | 2004-05-24 | 2004-05-24 | Self-priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2703149Y true CN2703149Y (en) | 2005-06-01 |
Family
ID=34774460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420040818 Expired - Fee Related CN2703149Y (en) | 2004-05-24 | 2004-05-24 | Self-priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2703149Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277314A (en) * | 2013-05-29 | 2013-09-04 | 明光市留香泵业有限公司 | Welded inner mixed type self-priming pump |
-
2004
- 2004-05-24 CN CN 200420040818 patent/CN2703149Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277314A (en) * | 2013-05-29 | 2013-09-04 | 明光市留香泵业有限公司 | Welded inner mixed type self-priming 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050601 Termination date: 20110524 |