CN2178797Y - Plastic centrifugal pump with series multilevel pressure - Google Patents
Plastic centrifugal pump with series multilevel pressure Download PDFInfo
- Publication number
- CN2178797Y CN2178797Y CN 93242911 CN93242911U CN2178797Y CN 2178797 Y CN2178797 Y CN 2178797Y CN 93242911 CN93242911 CN 93242911 CN 93242911 U CN93242911 U CN 93242911U CN 2178797 Y CN2178797 Y CN 2178797Y
- Authority
- CN
- China
- Prior art keywords
- pump
- pump housing
- impeller
- plastic centrifugal
- pumping chamber
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a plastic centrifugal pump with the series multilevel pressurizing. The utility model is composed of a multilevel pump body and an impeller. The pump body is compose of a front pump body, a back pump body, and at least one lever intermediate pump body which are arranged orderly in a coaxial way. The place between every two levels pump body is respectively provided with a pressurizing chamber, and the inner part of each pump body is respectively provided with one impeller. Each impeller is arranged on the same pump shaft. Under the condition that the outer diameter of each impeller is not increased, the lift of the pump is increased. The utility model has the advantages of simple structure, and low cost. The utility model is the substitute of a corrosion preventive plastic centrifugal pump in the chemical industry.
Description
The utility model relates to a kind of corrosion protection plastic centrifugal pump, relates to a kind of nonmetal pipeline conveying series multistage supercharging plastic centrifugal pump corrosive material, high-lift that is used for especially.
According to traditional design method, lift of pump is directly proportional with impeller outer diameter, be that impeller outer diameter is big, lift is also big, yet, can't make the impeller of big external diameter because plastic materials can not bear high pressure, so the plastic centrifugal pump of made mostly is low pressure, low lift at present, general lift is no more than 25 meters, therefore can't satisfy usage requirement in actual applications.
In view of the above-mentioned defective of prior art, the purpose of this utility model is to provide a kind of multistage supercharging plastic centrifugal pump of high-lift tandem that has, and makes simply, and cost is low, component universality is strong.
Above-mentioned purpose of the present utility model, realize by following plastic centrifugal pump:
A kind of series multistage supercharging plastic centrifugal pump, comprise the scroll casing shape pump housing and by the motor-driven impeller of being located on the pump shaft, its characteristics are: the described pump housing by the preceding pump housing of coaxial setting successively, the back pump housing and at least one-level line pump body constitute, be respectively equipped with the pumping chamber between the pump housings at different levels, the pump housings at different levels and pumping chamber link into an integrated entity, each pump housing spiral case enlarging place has a passage that communicates with adjacent pumping chamber's one side respectively, and the opposite side of each pump housing pumping chamber is provided with opening and communicates with the next stage pump housing; One described impeller is arranged respectively in each pump housing, and described each impeller is arranged on the same pump shaft.
Below in conjunction with accompanying drawing, the structural feature and the effect of plastic centrifugal pump of the present utility model is described further, wherein:
Fig. 1 is an embodiment's of the utility model series multistage supercharging plastic centrifugal pump a sectional view.
See also Fig. 1, as seen from the figure, plastic centrifugal pump of the present utility model has the preceding pump housing 1 of scroll casing shape, the middle pump housing 2 and the back pump housing 3 of coaxial setting successively, is respectively equipped with first pumping chamber 4 and second pumping chamber 5 between the pump housings at different levels, the pump housing and pumping chamber are by bolt 6,6 ' link into an integrated entity.For preventing to leak, also be lined with the rubber sheet gasket (not shown) therebetween; In addition, spiral case enlarging place of each pump housing have respectively a passage 7,7 ', passage 7,7 ' communicating with 4 left sides, first pumping chamber and 5 left sides, second pumping chamber, the right side of two pumping chambers has an opening 8,8 ' to be communicated with the adjacent middle pump housing and the back pump housing respectively respectively; Also be equipped with a pump shaft 9 in the pump housing, this pump shaft is positioned on the pump housing axis, which is provided with three impellers 10,10 ', the pump housing 1 before 10 ", these three impellers 10,10 ', 10 " lay respectively at is in the middle pump housing 2 and the back pump housing 3.In addition, in the utility model, for preventing pump shaft 9 circular runouts, be provided with fixed support 11 in preceding pump housing front portion, for preventing pump shaft to play, the front end of pump shaft 9 leans in an assembly cap 12 that is fixed on the pump housing inwall.
During work, the material that is transferred enters the preceding pump housing 1 by the import of the preceding pump housing 1, the effect of impeller 10 in the pump housing 1 before being subjected to, be sent to first pumping chamber 4, after in first pumping chamber 4, forming eddy current, the pump housing 2 is delivered to second pumping chamber 5 by impeller 10 ' effect again in the middle of entering, and after second pumping chamber 5 formed eddy current, " outlet was delivered in effect by impeller 10 to enter the back pump housing 3.
According to design of the present utility model, suitably increase the sum of series power of motor of pump, can realize strengthening the purpose of lift.For example, the impeller outer diameter of a traditional low pressure plastic centrifugal pump is 125mm, and rotating speed is 2900 rev/mins, 1.5 kilowatts of power of motor, and when its peak rate of flow was 14 cubic metres, the most high-lift was 20 millimeters; And use series multistage supercharging plastic pump of the present utility model instead, its lift can reach:
Progression impeller outer diameter rotating speed power of motor flow (T) lift (rice)
(millimeter) (rev/min) (kilowatt)
1 125 2900 1.5 14 20
2 125 2900 3 14 40
3 125 2900 4.5 14 60
4 125 2900 6 14 80
5 125 2900 7.5 14 100
This shows, series multistage supercharging plastic centrifugal pump of the present utility model is under the situation that does not change the impeller outer diameter size, as long as suitably increase the sum of series power of motor of pump, can obtain bigger lift, thereby overcome in the prior art because of being subjected to materials limitations can't make the defective of more high-lift plastic centrifugal pump.In addition, because the recurrence rate of component is big, only needs the single pump housing and impeller mold, thereby make simply, cost is low.
Claims (4)
1, a kind of series multistage supercharging plastic centrifugal pump, comprise the scroll casing shape pump housing and by the motor-driven impeller of being located on the pump shaft, it is characterized in that: the described pump housing by the preceding pump housing of coaxial setting successively, the back pump housing and at least one-level line pump body constitute, be respectively equipped with the pumping chamber between the pump housings at different levels, the pump housings at different levels and pumping chamber link into an integrated entity, each pump housing spiral case enlarging place has a passage that communicates with adjacent pumping chamber's one side respectively, and the opposite side of each pump housing pumping chamber is provided with opening and communicates with the next stage pump housing; One described impeller is arranged respectively in each pump housing, and described each impeller is arranged on the same pump shaft.
2, plastic centrifugal pump as claimed in claim 1 is characterized in that: the pump housing, the back pump housing are connected by bolt with the middle pump housing before described, are provided with rubber sheet gasket therebetween with anti-leak.
3, plastic centrifugal pump as claimed in claim 2 is characterized in that: the front portion of the pump housing is provided with fixed support before described.
4, plastic centrifugal pump as claimed in claim 3 is characterized in that: described pump shaft front end is resisted against one to be pieced together in the cap, and described assembly cap is fixed on the preceding pump housing inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93242911 CN2178797Y (en) | 1993-10-22 | 1993-10-22 | Plastic centrifugal pump with series multilevel pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93242911 CN2178797Y (en) | 1993-10-22 | 1993-10-22 | Plastic centrifugal pump with series multilevel pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2178797Y true CN2178797Y (en) | 1994-10-05 |
Family
ID=33816490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93242911 Expired - Fee Related CN2178797Y (en) | 1993-10-22 | 1993-10-22 | Plastic centrifugal pump with series multilevel pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2178797Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536046A (en) * | 2019-12-19 | 2020-08-14 | 合肥皖化电泵有限公司 | Multi-stage delivery pump |
-
1993
- 1993-10-22 CN CN 93242911 patent/CN2178797Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536046A (en) * | 2019-12-19 | 2020-08-14 | 合肥皖化电泵有限公司 | Multi-stage delivery pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |