CN109505739A - A kind of wind-powered electricity generation lubrication, Performance Test System and its working method of the water-cooling system under the conditions of full ambient engine - Google Patents
A kind of wind-powered electricity generation lubrication, Performance Test System and its working method of the water-cooling system under the conditions of full ambient engine Download PDFInfo
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- CN109505739A CN109505739A CN201811408770.4A CN201811408770A CN109505739A CN 109505739 A CN109505739 A CN 109505739A CN 201811408770 A CN201811408770 A CN 201811408770A CN 109505739 A CN109505739 A CN 109505739A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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Abstract
The invention discloses a kind of wind-powered electricity generation lubrications, Performance Test System and its working method of the water-cooling system under the conditions of full ambient engine, it includes environmental chamber, makes greenhouse, ventilating system and control system, the environmental chamber with make greenhouse and be connected by ventilation shaft, it the environmental chamber and makes greenhouse and is connect respectively with ventilating system, tested lubricating system is installed in the environmental chamber, water-cooling system simulates gear box device and analog inverter device, is equipped with temperature monitoring sensor, pressure monitoring sensor and flow monitoring sensor in the control system.The overall performance when present invention is used to test new product and existing product is run under the conditions of full ambient engine, effectively promote the research and development progress and product quality of new product, entire test process is completed using control system simultaneously, it simultaneously can be to being verified on new product the problem of having been found that, and discovery some the problem of not being exposed temporarily or certain single factors cause and insurmountable systemic problem.
Description
Technical field
The invention belongs to wind-powered electricity generation lubricating system and water-cooling system technical fields, and in particular to a kind of wind-powered electricity generation lubrication, water cooling system
The Performance Test System and its working method united under the conditions of full ambient engine.
Background technique
Wind turbine gearbox and frequency converter/generator are the important equipments of wind power generating set, it is ensured that blower can be normal
Operation, in addition to ensuring that outside the quality of gear-box and frequency converter/generator itself, the lubricating system of associated gear case and mating frequency conversion
The quality and performance of device/generator water-cooling system also affect the operating status and efficiency of complete machine.
From the point of view of domestic fan operation situation, complete machine runs 1 year rear gear box lubricating system and frequency converter/generator driven water
The problem of cooling system exposes is more, still, blower not rigorous enough in performance test of the research and development initial stage to new product of tracing it to its cause
Operating condition and particularity consider not enough in place, high to the reliability requirement of product, but practical trial production of new products comes out posteriority
Card effect is not implemented, and is especially proposing gearbox lubrication system and frequency converter/generator driven water cooling system complete machine zero
After part production domesticization, verify merely some components it is qualified under given conditions after, just use in new product system, make in batches
More problem is exposed in fan operation at new product.
Gearbox lubrication system and frequency converter/generator driven water cooling system performance test at present can not under constant temperature conditions into
Row, so that after the production domesticization of the complete machine components of lubricating system and water-cooling system, although certain parts still use original import parts,
But the components newly selected are not verified effectively, the whole system of domestic manufacturers' manufacture does not have after production domesticization assembling yet
There is carry out systematicness test, but new product model machine is installed on blower and is tested, feels not ask after running a period of time
Topic, then just starts to produce in batches, and product problem is constantly exposed after several years, then carries out single item to failure part in turn
Validation test under part, some problems can recurrence of failure, but some are but unable to recurrence of failure, therefore some problems is caused to begin
It cannot be well solved eventually.
A kind of cooling comprehensively control of Wind turbines hydrodynamic lubrication is disclosed in 202579042 U of China Patent Publication No. CN
System includes controller, and hydraulic system, lubricating system and water-cooling system are connected on the controller；The hydraulic system
It include spindle brake, off-course brake and slip-ring device subsystem, the slip-ring device subsystem includes first hydraulic
Become slurry device, the second hydraulic change slurry device and impeller lock；The lubricating system includes generator lubricating coupler and gearbox lubrication
Device；The water-cooling system includes generator driven water cooler, rectifier cabinet water cooler and electric fan with water cooling.The purpose of above-mentioned utility model is
A kind of collection hydraulic pressure, lubrication, refrigerating function are provided in integrated design, it is compact-sized, it occupies little space, it is easy to control simple
Wind turbines hydrodynamic lubrication cools down complex control system, but before commencement of commercial operation, can not carry out the property under the conditions of full ambient engine
Can test, cannot be to being verified on new product the problem of having been found that, while can not find some not temporarily to be exposed
Problem or certain single factors cause and insurmountable systemic problem.
Summary of the invention
The purpose of the present invention is to above-mentioned the deficiencies in the prior art, lead in wind-powered electricity generation lubricating system and water-cooling system technology
Domain, overall performance of the invention for testing new product and when existing product is run under the conditions of full ambient engine effectively promote new produce
The research and development progress and product quality of product.
The technical solution adopted by the invention is as follows: a kind of wind-powered electricity generation lubrication, performance of water-cooling system under the conditions of full ambient engine are surveyed
Test system, it includes environmental chamber, makes greenhouse, ventilating system and control system, and the environmental chamber makes greenhouse and ventilating system point
Be not connected with control system, the environmental chamber with make greenhouse and be connected by ventilation shaft, the environmental chamber and make greenhouse respectively with
Ventilating system connects, and tested lubricating system, water-cooling system, simulation gear box device and simulation are equipped in the environmental chamber
Frequency-converter device, the lubricating system are connected with simulation gear box device, and the water-cooling system is connected with analog inverter device,
The lubricating system, water-cooling system, simulation gear box device and analog inverter device are connected with control system respectively, the control
Temperature monitoring sensor, pressure monitoring sensor and flow monitoring sensor are connected in system processed.
The control system includes power switch, human-computer interaction interface, PLC controller, breaker, intermediate relay, friendship
Flow contactor, temperature sensor, pressure transmitter and flow transmitter.
The PLC controller is equipped with temperature section control module, pressure control module and flow-control module, the temperature
Discrete control module includes temperature detecting unit, temperature section information memory cell and temperature setting control unit, the pressure
Control module and flow-control module are respectively equipped with pressure sensing cell and flow detection unit.
Tested lubricating system, water-cooling system, simulation gear box device and simulation power generation are installed in the environmental chamber
Machine device.
The lubricating system and simulation gear box device are supervised with temperature monitoring sensor, pressure monitoring sensor and flow
Sensor is surveyed to be connected.
The water-cooling system and analog inverter device are supervised with temperature monitoring sensor, pressure monitoring sensor and flow
Sensor is surveyed to be connected.
The lubricating system is connected with water-cooling system by oil water heat exchange device, the oily channel of the oil water heat exchange device and lubrication
System is connected, and the aquaporin of the oil water heat exchange device is connected with water-cooling system.
The air inlet of the ventilating system is connected with environmental chamber, the air outlet of the ventilating system and the air inlet for making greenhouse
It is connected.
The present invention also provides a kind of wind-powered electricity generations to lubricate, performance test working method of water-cooling system under the conditions of full ambient engine,
It is characterized in that, comprising the following steps:
Step 1: in advance in temperature section information memory cell storage temperature segment information and each section of corresponding equipment operation letter
Breath；
Step 2: starting performance test macro；
Step 3: temperature detecting unit controls temperature sensor and carries out temperature detection, and by temperature value analog signal transmission to PLC
Controller；
Step 4: temperature value analog signal is converted temperature value information by PLC controller, and determines place temperature section area
Between；
Step 5: the temperature section section determined according to step 4, temperature setting control unit control the operation shape of relevant device
State；
Step 6: continuing to execute step 3, until temperature value reaches requirement；
Step 7: detection pressure and flow transmitter numerical value and judge tested test system whether normal operation；
Step 8: the numerical value of detection T1, T2 temperature sensor simultaneously controls ventilating system and makes the operating status in greenhouse；
Step 9: the test data of acquisition is observed, stopping signal is provided.
In step 5, according to the temperature value of detection, the temperature setting control unit is used to control the fortune of relevant device
Row meets definite value requirement.
The beneficial effects of the present invention are as follows: the present invention can test wind-powered electricity generation lubrication, complete machine of water-cooling system under the conditions of full ambient engine
Performance, and existing product can only be installed to above blower and be verified, this needs takes a long time and a large amount of fund；Separately
On the one hand, the present invention uses intelligence control system, and according to the test parameters of setting, system automatically adjusts each system or device with full
Sufficient experimental condition completes entire test process using control system, while can be to enterprising in new product the problem of having been found that
Row verifying, and discovery some the problem of not being exposed temporarily or certain single factors cause and insurmountable system
Property problem.
Detailed description of the invention
Fig. 1 is total system schematic diagram of the invention；
Fig. 2 is overall flow figure of the invention；
1, environmental chamber in figure；2, greenhouse is made；3, ventilating system；4, control system；5, gear box device is simulated；6, lubricating system；
7, water-cooling system；8, analog inverter device；9, temperature monitoring sensor；10, pressure monitoring sensor；11, flow monitoring passes
Sensor；12, oil water heat exchange device.
Specific embodiment
The present invention is further described with reference to the accompanying drawing:
As shown in Figs. 1-2, the present invention it include environmental chamber 1, make greenhouse 2, ventilating system 3 and control system 4, the environmental chamber
1, it makes greenhouse 2 and ventilating system 3 is connected with control system 4 respectively, the environmental chamber 1 is connected with greenhouse 2 is made by ventilation shaft,
Quantitative hot and cold gas is conveyed into environmental chamber 1 according to the needs of test macro convenient for making greenhouse 2.
It the environmental chamber 1 and makes greenhouse 2 and is connect respectively with ventilating system 3, can be discharged convenient for ventilating system 3 and be tested test system
Middle cooler generated gas when working.
The air inlet of the ventilating system 3 is connected with environmental chamber 1, the air outlet of the ventilating system 3 with make greenhouse 2 into
Air port is connected, and makes requirement of the greenhouse 2 according to environmental chamber 1 to temperature during the test, selects from the air outlet of ventilating system 3
The air force of sucking.
Tested lubricating system 6, water-cooling system 7, simulation gear box device 5 and simulation are installed in the environmental chamber 1
Frequency-converter device 8, wherein analog inverter device 8 can be simulation rotor machine, be carried out under the conditions of full ambient engine with reaching
Performance test.The lubricating system 6 is connected with simulation gear box device 5, the property of lubricating system 6 when for the operation of testing gears case
Energy；The water-cooling system 7 is connected with analog inverter device 8, the performance of water-cooling system 7 when for test frequency converter's operation.
The lubricating system 6, water-cooling system 7, simulation gear box device 5 and analog inverter device 8 are with control respectively
System 4 is connected, and temperature monitoring sensor 9, pressure monitoring sensor 10 and flow monitoring sensor are connected in the control system 4
11, wherein control system 4 is used to control the operation of each system and device and carries out the monitoring of flow system flow, pressure and temperature,
Control system 4 can be fed back according to flow monitoring sensor 11, pressure monitoring sensor 10 and temperature monitoring sensor 9 when test
Signal is adjusted and is suspended accordingly, and real-time display state and test data.
The control system 4 includes power switch, human-computer interaction interface, PLC controller, breaker, intermediate relay, friendship
Flow contactor, temperature sensor, pressure transmitter and flow transmitter.Wherein human-computer interaction interface is used for user and test macro
It is communicated；PLC controller makes corresponding control according to corresponding analysis result for receiving analog signal and being analyzed and processed
Braking is made；Breaker is used for system power supply overload protection；Intermediate relay and A.C. contactor are logical by what is got an electric shock by itself
Break to control the start-stop of equipment；And temperature sensor, pressure transmitter and flow transmitter are for the temperature in acquisition system
Degree, pressure and flow analog signal and pass to PLC controller.
The PLC controller is equipped with temperature section control module, pressure control module and flow-control module, the temperature
Discrete control module includes temperature detecting unit, temperature section information memory cell and temperature setting control unit, wherein temperature
Detection unit is used to control the temperature value analog signal of temperature sensor detection test macro each point, and by temperature value analog signal
PLC controller is passed to, then temperature value simulation model calculating is converted to temperature value information by PLC controller；Temperature section
For being implanted into pre-set temperature value Concourse Division information and being respectively segmented corresponding equipment operation letter in information memory cell
Breath；Temperature setting control unit is used for the fortune for controlling ventilating system 3 according to temperature value information, making greenhouse 2 and tested product
Row state, so that product is remained at during the test in the temperature environment of requirement.
The pressure control module and flow-control module are respectively equipped with pressure sensing cell and flow detection unit.
The lubricating system 6 with simulation gear box device 5 and temperature monitoring sensor 9, pressure monitoring sensor 10 and
Flow monitoring sensor 11 is connected, convenient for checking whether all numerical value of lubricating system 6 meet the requirements.
The water-cooling system 7 with analog inverter device 8 and temperature monitoring sensor 9, pressure monitoring sensor 10 and
Flow monitoring sensor 11 is connected, convenient for checking whether all numerical value of water-cooling system 7 meet the requirements.
The lubricating system 6 is connected with water-cooling system 7 by oil water heat exchange device 12, the oily channel of the oil water heat exchange device 12
It is connected with lubricating system 6, the aquaporin of oil water heat exchange device 12 is connected with water-cooling system system 7, goes to cool down by low temperature aqueous medium
High temperature oil medium, thus realize oil water heat exchange device heat exchange effect, by heat exchange after oil temperature numerical value and water temperature numerical value judgement change
Whether the performance of hot device meets the requirements.
The present invention also provides wind-powered electricity generation lubrications, performance test working method of water-cooling system under the conditions of full ambient engine, including with
Lower step:
Step 1: in advance in temperature section information memory cell storage temperature segment information and each section of corresponding equipment operation letter
Breath；
Step 2: starting performance test macro；
Step 3: temperature detecting unit controls temperature sensor and carries out temperature detection, and by temperature value analog signal transmission to PLC
Controller；
Step 4: temperature value analog signal is converted temperature value information by PLC controller, and determines place temperature section area
Between；
Step 5: the temperature section section determined according to step 4, temperature setting control unit control the operation shape of relevant device
State；
The state are as follows: T3 the and T4 temperature value in environmental chamber 1, which makes greenhouse 2 by adjusting, to convey gas into environmental chamber 1, make T3
It is constant in set interval with T4 temperature value；
First piecewise interval value of T5 and T7 temperature value reaches requirement by runing time, and the second piecewise interval value passes through simulation
The intermitten service of device and the operation in greenhouse 2 is made to reach requirement；
Step 6: continuing to execute step 3, until temperature value reaches requirement；
Step 7: detection L1 L2 pressure and P1-4 flow transmitter numerical value and judge tested test system whether normal operation；
Step 8: the numerical value of detection T1, T2 temperature sensor simultaneously controls ventilating system and makes the operating status in greenhouse；
The state are as follows: when making greenhouse 2 and needing to 1 transporting low temperature degree gas of environmental chamber, i.e., T2 temperature value is less than T1 temperature value, that
The gas that ventilating system 3 exports can be arranged all to making 2 import of greenhouse；
When make greenhouse 2 need to environmental chamber 1 convey high-temperature gas when, i.e., T2 temperature value be greater than T1 temperature value, then ventage
The gas of 3 outlet of system can be arranged all to making 2 import of greenhouse；
Step 9: the test data of acquisition is observed, stopping signal is provided.
It is of the invention use process is as follows:
Before test starts, tested lubricating system 6 and simulation gear box device 5 are attached according to schematic diagram pipeline,
Tested water-cooling system 7 is attached with analog inverter device 8 with pipeline, at the same by flow monitoring sensor 11, press
The mechanical interface of power monitoring sensor 10 and temperature monitoring sensor 9 is connected in pipeline, and electric interfaces are connected to control system 4
In, finally by lubricating system 6, water-cooling system 7, simulation gear box device 5, analog inverter device 8, ventilating system 3, environmental chamber
1 and make the electric interfaces part in greenhouse 2 and control system 4 is attached.
When test starts, enabling signal is obtained first, then system boot starts control system 4, System self-test is carried out,
Operation program is immediately entered if self-test is completed, system continues self-test；After the completion of System self-test, selection is corresponded to
Programming system required for test item brings into operation, and the start-up operation of greenhouse 2 is then made, according to the parameter value of program setting to ring
Border room 1 conveys the gas of assigned temperature and volume, while whether the temperature value for detecting the temperature monitoring point T3 and T4 of environmental chamber 1 is pressed
It is changed according to test request, if there is exception, checks whether the gas for making the conveying of greenhouse 2 is up to standard；When the monitoring point T3 and T4
After temperature value reaches test request, then detects the temperature value of the monitoring point T5 and T7 and whether reach testing setup value, if not reaching,
System continues to run while continuing to detect to greenhouse 2 is made.
After the temperature value of the monitoring point T5 and T7 reaches test request, start lubricating system 6 or water-cooling system 7, simulates tooth
Case apparatus 5 and analog inverter device 8 are taken turns, whether the temperature value for then proceeding to the detection monitoring point T5 or T7 reaches testing setup
Value, if not reaching, system continues to run while continuing to detect；When the temperature value of the monitoring point T5 or T7 reaches test request
Afterwards, then the numerical value of detection flows L1 or L2 and pressure P1-4 whether in the normal range, if numerical value be more than setting normal model
It encloses, then checks lubricating system 6 or water-cooling system 7, if all numerical value meet the requirements, system continues to test.
Then it detects T1 and T2 temperature value and judges gas circulating, that is, make greenhouse 2 according to system requirements and make generation
Assigned temperature and the gas of volume are transported to environmental chamber 1, and the gas that tested product generates at runtime is responsible for by ventilating system 3
Environmental chamber 1 is discharged, it should be noted that in order to guarantee that tested product is identical as live actual condition, make made by greenhouse 2
Gas flow is greater than amount, the capacity of ventilating system 3 required for tested product and is also greater than caused by this test product
Amount, the temperature monitoring point T1 for making 2 air inlet of greenhouse are used to monitor the temperature that gas is entered the wind when operation.
When making greenhouse 2 and needing to 1 transporting low temperature degree gas of environmental chamber, if the temperature value of the monitoring point T2 is less than the monitoring point T1
Temperature value, then the outlet air gas of ventilating system 3 can be arranged all to the air inlet for making greenhouse 2, at this time environmental chamber 1, make temperature
Room 2 and ventilating system 3 will form a closed circulatory system.
When making greenhouse 2 and needing to convey high-temperature gas to environmental chamber 1, if the monitoring point T2 temperature value is greater than T1 monitoring point
Temperature value, then the outlet air gas of ventilating system 3 can be arranged all to the air inlet for making greenhouse 2, at this time environmental chamber 1, make greenhouse 2
Will form a closed circulatory system with ventilating system 3, when the outlet air gas of ventilating system 3 do not arrange to make greenhouse 2 into
When air port, entire test macro is an open system, and after the completion of pending data acquisition, system is out of service.
At runtime, the data of each system, the running state data of each device and sensor monitoring can all be fed back this system
Into control system 4, after exception occurs in some data of monitoring point, system issues exception and withdraws deposit, and stops when abnormal data reaches
When testing setup, system is automatically stopped test, and shows shutdown reason.
Other undeclared parts of the present invention are same as the prior art.
Claims (10)
1. a kind of wind-powered electricity generation lubrication, Performance Test System of water-cooling system under the conditions of full ambient engine, it is characterized in that it includes environment
Greenhouse (2), ventilating system (3) and control system (4) are made in room (1), and the environmental chamber (1) makes greenhouse (2) and ventilating system (3)
Be connected respectively with control system (4), the environmental chamber (1) with make greenhouse (2) and be connected by ventilation shaft, the environmental chamber (1)
It is connect respectively with ventilating system (3) with greenhouse (2) is made, tested lubricating system (6), water is installed in the environmental chamber (1)
Cooling system (7), simulation gear box device (5) and analog inverter device (8), the lubricating system (6) and simulation gear-box dress
(5) to be set to be connected, the water-cooling system (7) is connected with analog inverter device (8), the lubricating system (6), water-cooling system (7),
Simulation gear box device (5) and analog inverter device (8) are connected with control system (4) respectively, connect on the control system (4)
It is connected to temperature monitoring sensor (9), pressure monitoring sensor (10) and flow monitoring sensor (11).
2. wind-powered electricity generation lubrication according to claim 1, Performance Test System of water-cooling system under the conditions of full ambient engine, feature
It is the control system (4) include that power switch, human-computer interaction interface, PLC controller, breaker, intermediate relay, exchange connect
Tentaculum, temperature sensor, pressure transmitter and flow transmitter.
3. wind-powered electricity generation lubrication according to claim 2, Performance Test System of water-cooling system under the conditions of full ambient engine, feature
It is that the PLC controller is equipped with temperature section control module, pressure control module and flow-control module, the temperature section control
Molding block includes temperature detecting unit, temperature section information memory cell and temperature setting control unit, and the pressure controls mould
Block and flow-control module are respectively equipped with pressure sensing cell and flow detection unit.
4. wind-powered electricity generation lubrication according to claim 1, Performance Test System of water-cooling system under the conditions of full ambient engine, feature
It is to be equipped with tested lubricating system (6) in the environmental chamber (1), water-cooling system (7), simulation gear box device (5) and mould
Send out electric machine (8).
5. wind-powered electricity generation lubrication according to claim 1, Performance Test System of water-cooling system under the conditions of full ambient engine, feature
Be the lubricating system (6) and simulation gear box device (5) and temperature monitoring sensor (9), pressure monitoring sensor (10)
It is connected with flow monitoring sensor (11).
6. wind-powered electricity generation lubrication according to claim 1, Performance Test System of water-cooling system under the conditions of full ambient engine, feature
Be the water-cooling system (7) and analog inverter device (8) and temperature monitoring sensor (9), pressure monitoring sensor (10)
It is connected with flow monitoring sensor (11).
7. wind-powered electricity generation lubrication according to claim 1, Performance Test System of water-cooling system under the conditions of full ambient engine, feature
It is that the lubricating system (6) is connected with water-cooling system (7) by oil water heat exchange device (12), the oil of the oil water heat exchange device (12) is logical
Road is connected with lubricating system (6), and the aquaporin of the oil water heat exchange device (12) is connected with water-cooling system (7).
8. wind-powered electricity generation lubrication according to claim 1, Performance Test System of water-cooling system under the conditions of full ambient engine, feature
It is that the air inlet of the ventilating system (3) is connected with environmental chamber (1), the air outlet of the ventilating system (3) and makes greenhouse (2)
Air inlet is connected, and makes requirement of the greenhouse (2) according to environmental chamber to temperature during the test, chooses whether from ventilating system (3)
Air outlet at suck gas.
9. a kind of wind-powered electricity generation lubrication, performance test working method of water-cooling system under the conditions of full ambient engine, which is characterized in that including with
Lower step:
Step 1: in advance in temperature section information memory cell storage temperature segment information and each section of corresponding equipment operation letter
Breath；
Step 2: starting performance test macro；
Step 3: temperature detecting unit controls temperature sensor and carries out temperature detection, and by temperature value analog signal transmission to PLC
Controller；
Step 4: temperature value analog signal is converted temperature value information by PLC controller, and determines place temperature section area
Between；
Step 5: the temperature section section determined according to step 4, temperature setting control unit control the operation shape of relevant device
State；
Step 6: continuing to execute step 3, until temperature value reaches requirement；
Step 7: detection L1 L2 pressure and P1-4 flow transmitter numerical value and judge tested test system whether normal operation；
Step 8: the numerical value of detection T1, T2 temperature sensor simultaneously controls ventilating system and makes the operating status in greenhouse；
Step 9: the test data of acquisition is observed, stopping signal is provided.
10. wind-powered electricity generation lubrication according to claim 9, performance test working method of water-cooling system under the conditions of full ambient engine,
It is characterized in that, according to the temperature value of detection, the temperature setting control unit is for controlling relevant device in step 5
Operation meets definite value requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811408770.4A CN109505739A (en) | 2018-11-23 | 2018-11-23 | A kind of wind-powered electricity generation lubrication, Performance Test System and its working method of the water-cooling system under the conditions of full ambient engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811408770.4A CN109505739A (en) | 2018-11-23 | 2018-11-23 | A kind of wind-powered electricity generation lubrication, Performance Test System and its working method of the water-cooling system under the conditions of full ambient engine |
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| CN109505739A true CN109505739A (en) | 2019-03-22 |
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Cited By (1)
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| CN110608994A (en) * | 2019-10-29 | 2019-12-24 | 南京讯联智能科技有限公司 | Corrosion resistance testing system for core body of wind power cooler |
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Application publication date: 20190322 |