CN107643484A - Frequency conversion type self priming pump electric efficiency method of testing - Google Patents
Frequency conversion type self priming pump electric efficiency method of testing Download PDFInfo
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- CN107643484A CN107643484A CN201611087147.4A CN201611087147A CN107643484A CN 107643484 A CN107643484 A CN 107643484A CN 201611087147 A CN201611087147 A CN 201611087147A CN 107643484 A CN107643484 A CN 107643484A
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Abstract
The present invention relates to a kind of frequency conversion type self priming pump electric efficiency method of testing, mainly solves the problems, such as to there is no frequency conversion type self priming pump electric efficiency method of testing in the prior art.For the present invention by using a kind of frequency conversion type self priming pump electric efficiency method of testing, test equipment mainly includes frequency conversion type self-priming pump motor, load variable-frequency motor, torque sensor, speed probe, temperature sensor, control panel, display；The technical schemes that the input power provided by the active power and power supply of testing the output of frequency conversion type self-priming pump motor calculates the frequency conversion type self priming pump motor operation efficiency under different operation power preferably solve above mentioned problem, in being tested available for frequency conversion type self priming pump electric efficiency.
Description
Technical field
The present invention relates to a kind of frequency conversion type self priming pump electric efficiency method of testing.
Background technology
The equipment that self priming pump generally uses as gas station, main function be oil product is pumped out from buried oil tank by
Flowmeter and nozzle are filled into automotive oil tank.Self-priming pump motor typically uses industrial frequency AC asynchronous machine, when operating personnel will
When nozzle is removed from fuel charger, motor receives fueling signal and starts to start, and motor moment reaches maximum (top) speed and maintained
Current rotating speed terminates until refueling.In actual refueling process, the nozzle high speed fuel-displaced time only accounts for fuel charger and starts the time
2/3rds, when oil product is not filled into the fuel tank of vehicle, the oil product pumped out is all flowed back by overflow ducts, and motor is transported at full speed
Row wastes a large amount of electric energy, adds gas station's grid electricity fee cost.Lee's row et al. analyzes gas station's self priming pump running situation, self-priming
The fueling signal that pump motor receives oil gun in fuel charger master control borad starts motor by the dynamic operation of oil pump of belt pulley drive, in oil
The oil inlet of pump produces negative pressure, enters the oil pressure of oil tank in pump by atmospheric pressure, and oil enters rotor chamber by oily filter in pump.By
After the oil of rotor chamber is by depression formation high pressure, enter gs-oil separator from pump oil discharge outlet, oil gas and oily mixture are in separator
Interior through being sufficiently separated, gas arranges people's air from the steam vent on top, and fluid is returned in pump.Frequency conversion type self-priming pump motor uses frequency conversion
Motor power (output) is adjusted technology, carries motor low-speed running when oil product after rifle does not fill, it is fuel-displaced after motor run at high speed it is full
Sufficient fueling operation demand, effectively reduce self priming pump electric energy expense.Currently, self priming pump electric efficiency method of testing is primarily directed to work
Frequency AC asynchronous motor, the testing of electric motors operational efficiency under fixed rotating speed.At present, test frequency conversion type is not provided in national standard certainly
The method of sucking pump electric efficiency, therefore can not determine whether frequency conversion type self-priming pump motor actual operating efficiency is in high efficiency range.
In view of the above circumstances, it is necessary to be determined to frequency conversion type self priming pump motor operation efficiency, to ensure frequency conversion type self-priming pump motor height
Effect operation.
The content of the invention
The technical problems to be solved by the invention are to there is no frequency conversion type self priming pump electric efficiency method of testing in the prior art
The problem of, there is provided a kind of new frequency conversion type self priming pump electric efficiency method of testing.This method can carry out frequency conversion type self priming pump electricity
The test of engine efficiency.
To solve the above problems, the technical solution adopted by the present invention is as follows：A kind of frequency conversion type self priming pump electric efficiency test
Method, test equipment mainly include frequency conversion type self-priming pump motor, load variable-frequency motor, torque sensor, speed probe, temperature
Sensor, control panel, display；Frequency conversion type self-priming pump motor (1) and load motor (5) are fixed on testboard using fixing bolt
(10) on, frequency conversion type self-priming pump motor (1) carries out power transmission by power transmission shaft (3), and load motor (5) is by speed discrepancy to change
Frequency type self-priming pump motor (1) provides load, and frequency conversion type self-priming pump motor (1) and load motor (5) are passed through into circle using the rope made of hemp
Joint (4) links together；Temperature sensor (2) measurement motor skin temperature, the output of torque sensor (6) measurement motor are turned round
Square, speed probe (7) measurement motor rotating speed, the parameter of electric machine are transmitted to controller (8) and shown in real time by display screen (9)
Show；The input power provided by the active power and power supply of testing the output of frequency conversion type self-priming pump motor is calculated in different operation work(
Frequency conversion type self priming pump motor operation efficiency under rate；Test comprises the following steps:
(a) after the power supply of frequency conversion type self-priming pump motor, the preheating of motor low-speed running, temperature sensor (2) measurement motor (1) is outside
Shell temperature, temperature carry out follow-up test in the case of not sharply increasing, and otherwise change motor and test again；
(b) frequency conversion type self-priming pump motor (1) low running rates are stable after currency, starting load variable-frequency motor (5),
In order to provide load to tested motor, reducing load motor (5) rotating speed makes it form speed discrepancy with tested motor, controls speed
Difference, 0.2 times of load being provided to tested motor (1), torque sensor (6), which tests out, treats the lower output torque of 0.2 times of load of measured motor,
Now motor speed to be measured, display screen (9) show current motor rotating speed, output torque and power supply for speed probe (7) measurement
Electric current, voltage and instantaneous power factor, active power is rotating speed * moment of torsion/9500, frequency conversion type self-priming pump motor (1) it is defeated
Enter power for electric current, voltage, the product of power factor (PF) three, the operational efficiency of present load down coversion type self-priming pump motor is to have
The ratio of work(power and input power；
(c) maintain to treat the current rotating speed of measured motor, reduce load motor (5) rotating speed again and increase its rotating speed with tested motor
Difference, increase by 0.2 times of load to tested motor, measure the operational efficiency of this load down coversion type self-priming pump motor (1)；
(d) for repeat step (c) until motor load reaches 1.2 times of loads, display screen (9) can show lower 0.2 times of the slow-speed of revolution
The efficiency curve of 1.2 times of loads is loaded to, is obtained using trace-point method under 1.0 times of load down coversion type self-priming pump motor slow-speed of revolution
Operational efficiency；
(e) improve motor speed to rise under high rotating speed, repeat step (b)；
(f) for repeat step (3) until motor load reaches 1.2 times of loads, display screen (9) shows that high lower 0.2 times of rotating speed is negative
The efficiency curve of 1.2 times of loads is loaded onto, the fortune under 1.0 times of load high rotating speeds of down coversion type self-priming pump motor is obtained using trace-point method
Line efficiency.
In above-mentioned technical proposal, it is preferable that under the current rotating speed of frequency conversion type self-priming pump motor, 0.2 times, 0.4 times, 0.6 times,
0.8 times, 1.0 times, the lower measurement motor operational efficiency of 1.2 times of loads.
Frequency conversion type self-priming pump motor solves conventional AC asynchronous motor and only exists startup and close down asking for two states
Topic, realizes motor low-speed running when operating personnel carry rifle, normal fueling operation runs at high speed.In the equal use condition in gas station
Under, frequency conversion type self-priming pump motor saves electric energy up to more than 30%, significantly reduces and add compared with conventional AC asynchronous motor
Petrol station power consumption.
The invention provides a kind of frequency conversion type self priming pump electric efficiency method of testing, is exported for frequency conversion type self-priming pump motor
The working characteristics of power variable, the method for testing can effectively measure reality of the frequency conversion type self priming pump electricity under different output power
Operational efficiency.The frequency conversion type self priming pump electric efficiency method of testing can be defeated according to actual conditions for frequency conversion type self-priming pump motor
Go out the characteristic of mesh power, operational efficiency of the frequency conversion type self priming pump under low-power operating mode measured in the case that volume read-out is small,
Operational efficiency of the frequency conversion type self priming pump under high power operating mode is being measured in the case that volume read-out is big, can be in different output power
Under determine frequency conversion type self-priming pump motor output active power and power supply provide input power, it is possible to achieve to different operations
The frequency conversion type self priming pump of power carries out efficiency test, draws the frequency conversion type self priming pump motor operation efficiency under different output power,
Data are provided for frequency conversion type self priming pump operation maintenance to support to achieve preferable technique effect.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the method for the invention.
In Fig. 1,1- frequency conversion type self-priming pump motors；2 temperature sensors；3- power transmission shafts；4- circular joints；5- load motors；
6- torque sensors；7- speed probes；8- controllers；9- display screens；10- testboards.
Below by embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Embodiment
【Embodiment 1】
A kind of frequency conversion type self priming pump electric efficiency method of testing, as shown in figure 1, mainly by testing frequency conversion type self priming pump electricity
The input power that the active power and power supply of machine output provide calculates the frequency conversion type self-priming pump motor fortune under different operation power
Line efficiency.Frequency conversion type self-priming pump motor (1) and load motor (5) are fixed on testboard (10) using fixing bolt, frequency conversion type
Self-priming pump motor (1) carries out power transmission by power transmission shaft (3), and load motor (5) is electric to frequency conversion type self priming pump by speed discrepancy
Machine (1) provides load, is connected to frequency conversion type self-priming pump motor (1) and load motor (5) by circular joint (4) using the rope made of hemp
Together.Temperature sensor (2) measurement motor skin temperature, torque sensor (6) measurement motor output torque, speed probe
(7) measurement motor rotating speed, the parameter of electric machine transmit to controller (8) and carry out real-time display by display screen (9).
Comprise the following steps:
(a) after the power supply of frequency conversion type self-priming pump motor, motor low-speed running preheats ten minutes, temperature sensor (2) measurement electricity
Machine (1) skin temperature, temperature carry out follow-up test in the case of not sharply increasing, and otherwise change motor and test again.
(b) frequency conversion type self-priming pump motor (1) low running rates are stable after currency, starting load variable-frequency motor (5),
In order to provide load to tested motor, reducing load motor (5) rotating speed makes it form speed discrepancy with tested motor, controls speed difference
0.2 times of load can be provided to tested motor (1), torque sensor (6), which tests out, treats the lower output torque of 0.2 times of load of measured motor,
Now motor speed to be measured, display screen (9) can show current motor rotating speed, output torque and confession for speed probe (7) measurement
Electric current, voltage and the instantaneous power factor of electricity, active power is rotating speed * moment of torsion/9500, frequency conversion type self-priming pump motor (1)
Input power is electric current, voltage, the product of power factor (PF) three, and the operational efficiency of present load down coversion type self-priming pump motor is
The ratio of active power and input power.
(c) maintain to treat the current rotating speed of measured motor, reduce load motor (5) rotating speed again and increase its rotating speed with tested motor
Difference, increase by 0.2 times of load (being now 0.4 times of load) to tested motor, measure this load down coversion type self-priming pump motor (1)
Operational efficiency.
(d) for repeat step (c) until motor load reaches 1.2 times of loads, display screen (9) can show lower 0.2 times of the slow-speed of revolution
The efficiency curve of 1.2 times of loads is loaded to, is obtained using trace-point method under 1.0 times of load down coversion type self-priming pump motor slow-speed of revolution
Operational efficiency.
(e) improve motor speed to rise under high rotating speed, repeat step (b).
(f) for repeat step (3) until motor load reaches 1.2 times of loads, display screen (9) can show lower 0.2 times of high rotating speed
The efficiency curve of 1.2 times of loads is loaded to, is obtained using trace-point method under 1.0 times of load high rotating speeds of down coversion type self-priming pump motor
Operational efficiency.
The method that test frequency conversion type self priming pump electric efficiency is not provided in national standard, only for conventional AC asynchronous machine
In the method for testing of declared working condition operational efficiency, load motor can not provide accordingly in the case that motor operation efficiency changes
Load capacity, the operational efficiency under frequency conversion type self-priming pump motor difference operating mode can not be measured, therefore frequency conversion type self-priming can not be determined
Whether pump motor actual operating efficiency is in high efficiency range.Frequency conversion type self priming pump electric efficiency method of testing can be directed to variable-frequency electric
Operating condition driving load motor under machine different capacity provides corresponding load capacity, and simulated frequency conversion motor actual operating mode is surveyed
Different operation power down coversion type self priming pump motor operation efficiency are measured, are advantageous to fully understand the runnability of self priming pump, really
Protect frequency conversion type self priming pump Effec-tive Function.
Claims (2)
1. a kind of frequency conversion type self priming pump electric efficiency method of testing, test equipment mainly includes frequency conversion type self-priming pump motor, load
Variable-frequency motor, torque sensor, speed probe, temperature sensor, control panel, display；Frequency conversion type self-priming pump motor (1) and
Load motor (5) is fixed on testboard (10) using fixing bolt, and frequency conversion type self-priming pump motor (1) is entered by power transmission shaft (3)
Row power transmission, load motor (5) provides load by speed discrepancy to frequency conversion type self-priming pump motor (1), using the rope made of hemp by frequency conversion
Type self-priming pump motor (1) and load motor (5) are linked together by circular joint (4)；Outside temperature sensor (2) measurement motor
Shell temperature, torque sensor (6) measurement motor output torque, speed probe (7) measurement motor rotating speed, the parameter of electric machine transmit to
Controller (8) simultaneously carries out real-time display by display screen (9)；By test frequency conversion type self-priming pump motor export active power and
The input power that power supply provides calculates the frequency conversion type self priming pump motor operation efficiency under different operation power；Test includes as follows
Step:
(a) after the power supply of frequency conversion type self-priming pump motor, the preheating of motor low-speed running, temperature sensor (2) measurement motor (1) shell temperature
Degree, temperature carry out follow-up test in the case of not sharply increasing, and otherwise change motor and test again；
(b) frequency conversion type self-priming pump motor (1) low running rates are stable after currency, starting load variable-frequency motor (5), in order to
Load is provided to tested motor, reducing load motor (5) rotating speed makes it form speed discrepancy with tested motor, controls speed difference, to
Tested motor (1) provides 0.2 times of load, and torque sensor (6), which tests out, treats the lower output torque of 0.2 times of load of measured motor, rotating speed
Now motor speed to be measured, display screen (9) show current motor rotating speed, output torque and the electricity of power supply for sensor (7) measurement
Stream, voltage and instantaneous power factor, active power are rotating speed * moment of torsion/9500, the input work of frequency conversion type self-priming pump motor (1)
Rate is electric current, voltage, the product of power factor (PF) three, and the operational efficiency of present load down coversion type self-priming pump motor is wattful power
The ratio of rate and input power；
(c) maintain to treat the current rotating speed of measured motor, reduce load motor (5) rotating speed again and increase its speed discrepancy with tested motor,
Increase by 0.2 times of load to tested motor, measure the operational efficiency of this load down coversion type self-priming pump motor (1)；
(d) for repeat step (c) until motor load reaches 1.2 times of loads, display screen (9) can show the lower 0.2 times of load of the slow-speed of revolution
To the efficiency curve of 1.2 times of loads, the operation under 1.0 times of load down coversion type self-priming pump motor slow-speed of revolution is obtained using trace-point method
Efficiency；
(e) improve motor speed to rise under high rotating speed, repeat step (b)；
(f) for repeat step (3) until motor load reaches 1.2 times of loads, display screen (9) shows that high lower 0.2 times of rotating speed is loaded to
The efficiency curve of 1.2 times of loads, obtain the operation under 1.0 times of load high rotating speeds of down coversion type self-priming pump motor using trace-point method and imitate
Rate.
2. frequency conversion type self priming pump electric efficiency method of testing according to claim 1, it is characterised in that frequency conversion type self priming pump electricity
Under the current rotating speed of machine, the measurement motor operational efficiency under 0.2 times, 0.4 times, 0.6 times, 0.8 times, 1.0 times, 1.2 times of loads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611087147.4A CN107643484B (en) | 2016-12-01 | 2016-12-01 | Frequency conversion type self priming pump electric efficiency test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611087147.4A CN107643484B (en) | 2016-12-01 | 2016-12-01 | Frequency conversion type self priming pump electric efficiency test method |
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| CN107643484A true CN107643484A (en) | 2018-01-30 |
| CN107643484B CN107643484B (en) | 2019-09-24 |
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| CN201611087147.4A Active CN107643484B (en) | 2016-12-01 | 2016-12-01 | Frequency conversion type self priming pump electric efficiency test method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630422A (en) * | 2018-11-24 | 2019-04-16 | 赵华勇 | A kind of control circuit of self priming pump water testing machine |
| CN112110407A (en) * | 2019-06-19 | 2020-12-22 | 中国石油化工股份有限公司 | Double-frequency-conversion oil gas recovery gas-liquid ratio adjusting device and method |
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| JPH0875831A (en) * | 1994-09-01 | 1996-03-22 | Toyota Motor Corp | Motor evaluation method |
| US20040017118A1 (en) * | 2002-07-23 | 2004-01-29 | Yehia El-Ibiary | System and method for estimating electric motor operating parameters |
| CN202339399U (en) * | 2011-11-07 | 2012-07-18 | 重庆明宝科技发展有限公司 | Motor testing system |
| CN104422885A (en) * | 2013-09-10 | 2015-03-18 | 冉骏 | Real-time online motor testing system |
| CN104950257A (en) * | 2015-06-29 | 2015-09-30 | 吉林大学 | Test system and test method for open-end winding permanent magnet synchronous motor |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0875831A (en) * | 1994-09-01 | 1996-03-22 | Toyota Motor Corp | Motor evaluation method |
| US20040017118A1 (en) * | 2002-07-23 | 2004-01-29 | Yehia El-Ibiary | System and method for estimating electric motor operating parameters |
| CN202339399U (en) * | 2011-11-07 | 2012-07-18 | 重庆明宝科技发展有限公司 | Motor testing system |
| CN104422885A (en) * | 2013-09-10 | 2015-03-18 | 冉骏 | Real-time online motor testing system |
| CN104950257A (en) * | 2015-06-29 | 2015-09-30 | 吉林大学 | Test system and test method for open-end winding permanent magnet synchronous motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630422A (en) * | 2018-11-24 | 2019-04-16 | 赵华勇 | A kind of control circuit of self priming pump water testing machine |
| CN109630422B (en) * | 2018-11-24 | 2020-05-19 | 江苏中电泵阀制造有限公司 | Control circuit of self-priming pump water testing machine |
| CN112110407A (en) * | 2019-06-19 | 2020-12-22 | 中国石油化工股份有限公司 | Double-frequency-conversion oil gas recovery gas-liquid ratio adjusting device and method |
| CN112110407B (en) * | 2019-06-19 | 2022-06-28 | 中国石油化工股份有限公司 | Double-frequency-conversion oil gas recovery gas-liquid ratio adjusting device and method |
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| CN107643484B (en) | 2019-09-24 |
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