CN203476726U - Efficient and energy-saving water pump - Google Patents
Efficient and energy-saving water pump Download PDFInfo
- Publication number
- CN203476726U CN203476726U CN201320500724.3U CN201320500724U CN203476726U CN 203476726 U CN203476726 U CN 203476726U CN 201320500724 U CN201320500724 U CN 201320500724U CN 203476726 U CN203476726 U CN 203476726U
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- water pump
- energy
- rounded channels
- motor
- pid controller
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Abstract
The utility model relates to an efficient and energy-saving water pump which comprises a motor and an electricity-saving system. The electricity-saving system comprises a frequency transformer, a PID controller and a pressure sensor. The frequency transformer is electrically connected to the motor and is used for controlling the rotating speed of the motor. The PID controller is electrically connected to the frequency transformer and used for controlling the frequency of the frequency transformer. The pressure sensor is arranged on a water outlet of a water pump, is electrically connected with the PID controller, and is used for detecting the water pressure of the water outlet and transmitting detection signals to the PID controller. Compared with the prior art, the efficient and energy-saving water pump has the advantages that the electricity saving rate is high and can reach 30% to50%, full automatic control is achieved, the efficient and energy-saving water pump is free of manual operation, the optimum energy-saving working point of the motor of the water pump is tracked automatically, and the service life of the motor of the water pump is prolonged.
Description
Technical field
The utility model relates to pumping equipment technical field, is a kind of energy-efficient water pump specifically.
Background technique
Current era, the status of the energy in social development is irreplaceable, and the sustainable development that how to keep social is the problem that we must face.Water pump, as a kind of universal machine in producing, is consuming a large amount of energy.In China, the power consumption of annual water pump accounts for 21% of total electric energy.Water pump in use, variation along with ambient temperature and production load, its circulating water flow also will adjust accordingly, general way is to control flow with throttle valve at present, because valve regulated has increased pipe resistance, make pump motor need to overcome valve resistance and increase hydraulic pressure, causing air horsepower consume greatly, waste of energy is serious.
Model utility content
In order to overcome the defect of above-mentioned prior art, technical problem to be solved in the utility model is to provide a kind of energy-efficient water pump.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
An energy-efficient water pump, comprises motor, also comprises power saving apparatus, and described power saving apparatus comprises frequency variator, PID controller and pressure transducer.
Described frequency variator is electrically connected to motor, for controlling the rotating speed of motor;
Described PID controller is electrically connected to frequency variator, for controlling the frequency of frequency variator;
Described pressure transducer is arranged on the water outlet of water pump and is electrically connected to PID controller, for detection of the hydraulic pressure of water outlet and testing signal is passed to PID controller.
Wherein, also comprise impeller, the front half part of the blade upstream face of described impeller is provided with more than one rounded channels, and the degree of depth of described rounded channels is vane thickness 1/5～1/2,2～6 times of the degree of depth that the diameter of described rounded channels is rounded channels.
Wherein, the notch place of described rounded channels is provided with fillet.
Wherein, described more than one rounded channels is evenly distributed on the front half part of blade upstream face according to matrix arrangement mode, and the spacing between adjacent two rounded channels is blade height 1/20～1/10.
Wherein, the minimum separable between described rounded channels and blade edge is 2～5cm.
The utility model compared with prior art, has following beneficial effect: (1) power saving rate is high, can reach 30%～50%; (2) realize Automatic Control, manpower-free's operation; (3), from the maximum energy-saving operation point of motion tracking pump motor, extend the working life of pump motor.
Accompanying drawing explanation
Figure 1 shows that the composition frame chart of the utility model embodiment's power saving apparatus.
Figure 2 shows that the structural representation of the utility model embodiment's impeller.
Figure 3 shows that the partial enlarged drawing A of Fig. 2.
Label declaration:
1, motor; 2, frequency variator; 3, PID controller; 4, pressure transducer;
5, impeller; 50, blade; 51, rounded channels.
Embodiment
By describing technology contents of the present utility model, structure characteristics in detail, being realized object and effect, below in conjunction with mode of execution and coordinate accompanying drawing to be explained in detail.
Refer to shown in Fig. 1, the energy-efficient water pump of present embodiment, comprises motor 1, also comprises power saving apparatus, and described power saving apparatus comprises frequency variator 2, PID controller 3 and pressure transducer 4.
Described frequency variator 2 is electrically connected to motor 1, for controlling the rotating speed of motor 1;
Described PID controller 3 is electrically connected to frequency variator 2, for controlling the frequency of frequency variator 2;
Described pressure transducer 4 is arranged on the water outlet of water pump and is electrically connected to PID controller 3, for detection of the hydraulic pressure of water outlet and testing signal is passed to PID controller 3.
Working principle of the present utility model is as follows:
Pressure transducer 4 detects the hydraulic pressure of pump outlet in real time, transient change situation with induction machine 1 load, then signal is passed to PID controller 3, by PID controller 3, regulate the frequency of frequency variator 2 to control the rotating speed of motor 1, flow and the load of pump outlet are matched, thereby effectively improve the power consumption efficiency of motor 1 under low-load and sub load, reach the object of saving power.
In the above-described embodiments, in order further to improve energy-saving effect, shown in Fig. 2 and Fig. 3, also comprise impeller 5, the front half part of blade 50 upstream faces of described impeller 5 is provided with more than one rounded channels 51, the degree of depth of described rounded channels 51 is 1/5～1/2 of blade 50 thickness, and the diameter of described rounded channels 51 is 2～6 times of the degree of depth of rounded channels 51.Existence due to rounded channels 51, water, at the numerous rotary fluid of the interior generation of rounded channels 51 and by the centrifugal force impeller 5 of dishing out at a high speed, increases the centrifugal force of water, improves lift 10～20% in the situation that not increasing energy consumption, and noise also decreases, reduction amplitude can reach 20%.Further, the notch place of described rounded channels 51 is provided with fillet, to avoid water to produce resistance and increase energy consumption at rounded channels 51 places.Further, described more than one rounded channels 51 is evenly distributed on the front half part of blade 50 upstream faces according to matrix arrangement mode, spacing between adjacent two rounded channels 51 is 1/20～1/10 of blade 50 height, thereby in the intensity that guarantees blade 50, improves to a greater degree water lift of pump and reduce noise.Further, the minimum separable between described rounded channels 51 and blade 50 edges is 2～5cm.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. an energy-efficient water pump, comprises motor, it is characterized in that: also comprise power saving apparatus, described power saving apparatus comprises frequency variator, PID controller and pressure transducer,
Described frequency variator is electrically connected to motor, for controlling the rotating speed of motor;
Described PID controller is electrically connected to frequency variator, for controlling the frequency of frequency variator;
Described pressure transducer is arranged on the water outlet of water pump and is electrically connected to PID controller, for detection of the hydraulic pressure of water outlet and testing signal is passed to PID controller.
2. energy-efficient water pump according to claim 1, it is characterized in that: also comprise impeller, the front half part of the blade upstream face of described impeller is provided with more than one rounded channels, the degree of depth of described rounded channels is 1/5～1/2 of vane thickness, 2～6 times of the degree of depth that the diameter of described rounded channels is rounded channels.
3. energy-efficient water pump according to claim 2, is characterized in that: the notch place of described rounded channels is provided with fillet.
4. energy-efficient water pump according to claim 3, it is characterized in that: described more than one rounded channels is evenly distributed on the front half part of blade upstream face according to matrix arrangement mode, the spacing between adjacent two rounded channels is blade height 1/20～1/10.
5. energy-efficient water pump according to claim 4, is characterized in that: the minimum separable between described rounded channels and blade edge is 2～5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500724.3U CN203476726U (en) | 2013-08-16 | 2013-08-16 | Efficient and energy-saving water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500724.3U CN203476726U (en) | 2013-08-16 | 2013-08-16 | Efficient and energy-saving water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476726U true CN203476726U (en) | 2014-03-12 |
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ID=50225065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320500724.3U Expired - Lifetime CN203476726U (en) | 2013-08-16 | 2013-08-16 | Efficient and energy-saving water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286525A (en) * | 2017-12-29 | 2018-07-17 | 南京钢铁股份有限公司 | Water supply frequency conversion pump group running frequency optimization method |
-
2013
- 2013-08-16 CN CN201320500724.3U patent/CN203476726U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286525A (en) * | 2017-12-29 | 2018-07-17 | 南京钢铁股份有限公司 | Water supply frequency conversion pump group running frequency optimization method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FUJIAN NEW YINJIA PUMP INDUSTRY CO., LTD. Free format text: FORMER OWNER: FUJIAN YINJIA ELECTROMECHANICAL CO., LTD. Effective date: 20150826 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150826 Address after: 355000, No. 68, Jiang Bei Road, Qi Qi Economic Development Zone, Ningde, Fujian, Fu'an Patentee after: FUJIAN XINYINJIA PUMP INDUSTRY CO.,LTD. Address before: 355000, No. 68, Jiang Bei Road, Qi Qi Economic Development Zone, Ningde, Fujian, Fu'an Patentee before: FUJIAN YINJIA ELECTROMECHANICAL Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
|
| CX01 | Expiry of patent term |