CN205714814U - A kind of diving axle mixed-flow pump with double rated lift - Google Patents
A kind of diving axle mixed-flow pump with double rated lift Download PDFInfo
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- CN205714814U CN205714814U CN201620315399.7U CN201620315399U CN205714814U CN 205714814 U CN205714814 U CN 205714814U CN 201620315399 U CN201620315399 U CN 201620315399U CN 205714814 U CN205714814 U CN 205714814U
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- pump
- motor
- double
- flow pump
- rated lift
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Abstract
This utility model provides a kind of diving axle mixed-flow pump with double rated lift, and including pump head and motor, described motor is double-speed motor.This utility model passes through electrical motor gearshift so that the efficient district expanded range of pump operation, improves efficiency thus reduces energy consumption；And only need to regulate rotating speed, buy the pump installing another model without overlapping investment, suspending pump need not be played and readjust blade angle, decrease quantities.
Description
Technical field
This utility model belongs to water conservancy machinery technical field, it particularly relates to a kind of diving axle mixed-flow pump with double rated lift.
Background technology
Diving axle mixed-flow pump is mainly made up of pump head and driving motor, and pump one can be used for farmland discharging-irrigating, industrial and mineral dock, urban construction, power station plumbing.But electric pump actual operating mode is the most single, such as pumping plant is when water drainage and irrigation, and its rated lift just difference is bigger.The efficient district of axle mixed-flow pump is narrower, inefficiency under off-design behaviour, the most even needs to readjust blade angle to meet operation demand, and this just increases the quantities that electric pump lifting is installed.
Summary of the invention
Technical problem:The subject matter that this utility model solves is: provides a kind of diving axle mixed-flow pump with double rated lift, thus avoids pump rated lift single, and operating condition change causes the efficiency of pump the most even to affect the situation that water pump is properly functioning greatly.
Technical scheme:For solving the problems referred to above, the technical solution adopted in the utility model is:
A kind of diving axle mixed-flow pump with double rated lift, including pump head and motor, described motor is double-speed motor.
Described double-speed motor realizes pole-changing control by changing winding connection method change motor pole number.
Beneficial effect:Compared with prior art, the technical program provides the benefit that:
1. pass through electrical motor gearshift so that the efficient district expanded range of pump operation；
2. when running under off-design behaviour, only need to regulate rotating speed, buy the pump installing another model without overlapping investment；
3., when running under off-design behaviour, suspending pump need not be played and readjust blade angle, decrease quantities；
4., when running under off-design behaviour, reduce energy consumption by changing rotating speed raising efficiency.
Accompanying drawing explanation
Fig. 1 be 500ZQB-50 different rotating speeds lower blade angle be performance chart when 0 °
When in figure, 1. rotating speed is 980r/min, the H-Q curve of 500ZQB-50；2. when rotating speed is 980r/min, the efficiency curve of 500ZQB-50；3. when rotating speed is 730r/min, the H-Q curve of 500ZQB-50；4. when rotating speed is 730r/min, the efficiency curve of 500ZQB-50.
Detailed description of the invention
Below in conjunction with the accompanying drawings technical scheme is described in detail:
This utility model has the diving axle mixed-flow pump of double rated lift and is mainly made up of double-speed motor and pump head.Double-speed motor can change motor pole number realize pole-changing control by changing winding connection method.It will be seen from figure 1 that 500ZQB-50 axial-flow pump is when rotating speed is 980r/min, its rated lift is 9.2m, and it is when rotating speed is 730r/min, and its rated lift is 4.8m.By changing rotating speed so that pump has double rated lift, when Unit head changes greatly, still can meet service requirement.
Claims (2)
1. there is a diving axle mixed-flow pump for double rated lift, including pump head and motor, it is characterised in that: described motor is double-speed motor.
Diving axle mixed-flow pump the most according to claim 1, it is characterised in that: described double-speed motor realizes pole-changing control by changing winding connection method change motor pole number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620315399.7U CN205714814U (en) | 2016-04-15 | 2016-04-15 | A kind of diving axle mixed-flow pump with double rated lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620315399.7U CN205714814U (en) | 2016-04-15 | 2016-04-15 | A kind of diving axle mixed-flow pump with double rated lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205714814U true CN205714814U (en) | 2016-11-23 |
Family
ID=57307786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620315399.7U Active CN205714814U (en) | 2016-04-15 | 2016-04-15 | A kind of diving axle mixed-flow pump with double rated lift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205714814U (en) |
-
2016
- 2016-04-15 CN CN201620315399.7U patent/CN205714814U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |