CN208705331U - Wind turbine generator system lubricating oil on-line monitoring system - Google Patents
Wind turbine generator system lubricating oil on-line monitoring system Download PDFInfo
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- CN208705331U CN208705331U CN201821467082.0U CN201821467082U CN208705331U CN 208705331 U CN208705331 U CN 208705331U CN 201821467082 U CN201821467082 U CN 201821467082U CN 208705331 U CN208705331 U CN 208705331U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 64
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 39
- 239000003921 oil Substances 0.000 claims abstract description 64
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 claims description 69
- 239000004065 semiconductor Substances 0.000 claims description 15
- 238000005461 lubrication Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000010724 circulating oil Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses a wind turbine generator system lubricating oil on-line monitoring system, including monitoring box, sensor unit, data processing module, power management module and lubricating oil circulation part, lubricating oil circulation part including the intercommunication the mechanical pump's of wind turbine generator system gear box oil-out extremely the oil production pipe of monitoring box, and the intercommunication the oil pipe that returns of monitoring box and gear box. The utility model discloses an on-line monitoring system is used for the real-time collection of gear box lubricating oil fluid quality data, storage, transmission, the lubricating oil circulation part be with the only crosslinked portion of gear box system, draw oil to the oil inlet of monitoring box through the oil-out from gear box mechanical pump, return oil to gear box air filter from the monitoring box oil-out again, can effectual saving oil mass for lubricating oil, extension gear box equipment life, in time, accurate decision-making equipment wear state, and then take effectual maintenance measure, reduce equipment fault rate.
Description
Technical field
The utility model belongs to air-blower control technical field, and in particular to a kind of Wind turbines lubricating oil on-line monitoring system
System.
Background technique
Existing oil product maintenance mode are as follows: the oil product of replacement in every 2 to three years, the drawbacks of this service mode are: one
Be naked eyes can not judge oil product initial stage deterioration the case where, second is that change oil on schedule, tool bears the character of much blindness, equipment attrition cannot and
Shi Faxian, or it is possible to that oil product is fair causes to waste.
206573573 U of Chinese patent CN discloses a kind of electric gear lubricant on-line monitoring automatic maintaining device, by oil
Pump, constent temperature heater, overflow valve, monitoring unit, filter, vacuum tank, condenser, water collect tank, vacuum pump, check valve pass through pipe
Road connection composition circulating oil path, the wherein spare fuel outlet of the oil inlet of oil pump and wind-driven generator wheel-box connection takes oil, single
It is connect to valve with the oil inlet end of filter I in the lubricant passage way of the wind-driven generator wheel-box, particle is provided in monitoring unit
Dustiness sensor, moisture content monitor, temperature sensor, vacuum tank top are equipped with electronic vent valve, set in the middle part of vacuum tank
There is liquid level sensor.Intelligent control unit and oil pump, constent temperature heater, monitoring unit, vacuum pump, electronic vent valve, liquid level pass
Sensor line connects composition control circuit.
Although above-mentioned patent using line outside monitoring realize the monitoring of quality of lubrication oil, its monitoring data is entirely
It is controlled by the program of isolated operation, is not combined with blower practical operation situation, effective continuity cannot be formed
Data accumulation.
Moreover, because blower is generally all mounted on desolate and uninhabited place, and even on the higher mountain of height above sea level, these places
Often operator base station is less, and signal quality is poor, cannot effectively meet the timely and effective transmission of data, make above-mentioned on-line monitoring
Automatic maintaining device processing is detached from the independent operating state of control supervision, can not achieve really online.Simultaneously because wind field face
Product is wide, blower quantity is more, and wired mode needs to be laid with a large amount of cables in advance, and task amount is very heavy, not can solve equally really
On-line monitoring.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of Wind turbines lubricating oil on-line monitoring
System.
Another purpose of the utility model is to provide a kind of monitoring side of Wind turbines lubricating oil on-line monitoring system
Method.
The utility model is achieved through the following technical solutions:
A kind of Wind turbines lubricating oil on-line monitoring system, including monitoring cabinet, sensor unit, data processing module,
Power management module and lubrication oil circulation component, the lubrication oil circulation component include the tooth of the connection Wind turbines
Production pipe of the oil outlet of the mechanical pump of roller box to the described monitoring cabinet, and the connection monitoring cabinet and gear-box
Oil return pipe.
In the above-mentioned technical solutions, the side side of production pipe access monitoring cabinet, the production pipe access
At the top of the monitoring body side, the oil return pipe is connected to the air filtering core of gear-box.
In the above-mentioned technical solutions, the sensor unit includes granularity sensor, viscosity sensor, moisture sensing
Device and dielectric constant sensor, the granularity sensor setting is in the monitoring bottom of box.
In the above-mentioned technical solutions, the granularity sensor is transferred to no line number for data are acquired by CAN bus
According to transmission unit, viscosity sensor, moisture transducer and dielectric constant sensor are transferred to by RS485 bus by data are acquired
Wireless data transmission unit.
In the above-mentioned technical solutions, the power management module include the Transformer Rectifier Unit being connected to external power grid and
UPS, and the constant-current source for stablizing constant current output is provided to sensor.
In the above-mentioned technical solutions, the data processing module includes the sensor number with sensor unit communication connection
According to acquisition unit, the MCU logic control element being connect with the sensor data acquisition unit communications, and led to by described
An enabled high-frequency radio frequency communication unit and 4G communication unit is selected in the control of news mode switch unit, and the high-frequency radio frequency communicates single
Member and 4G communication unit respectively with the MCU logic control element communication connection.
In the above-mentioned technical solutions, communication modes switch unit control includes enabled with the switching of the MCU
Hold the switch element of electrical connection, the enable end of the high-frequency radio frequency communication unit and 4G communication unit respectively through switch element with
Enabled feeder ear is connected.
In the above-mentioned technical solutions, the switch element includes metal-oxide-semiconductor Q17 and triode Q19, the triode Q19
Base stage be connected with the switching enable end by first resistor R149；The high-frequency radio frequency communication unit is logical for 433MHz
Module is interrogated, the source electrode of the metal-oxide-semiconductor Q17 is connected with enabled feeder ear；The drain electrode of the metal-oxide-semiconductor Q17 and 433MHz communication module
Enable end be connected；The collector of the triode Q19 is connected by second resistance R147 with the grid of metal-oxide-semiconductor Q17；Described
The grid of metal-oxide-semiconductor Q17 connect with the enable end of 4G communication module and connect through 3rd resistor R145 with system power supply, described three
The emitter of pole pipe Q19 is grounded.
In the above-mentioned technical solutions, sensor data acquisition module includes input terminal connected, output end corresponding with sensor
Be connected the operational amplifier amplified with the small signal for exporting sensor with the AD of MCU acquisition pin.
In the above-mentioned technical solutions, further include GPS unit with the MCU communication connection.
The control method of Wind turbines lubricating oil on-line monitoring system, includes the following steps,
1) mechanical pump enters the oil pump in gear-box to monitor cabinet when wind turbine power generation, and MCU carries out multiple sensor interfaces
Automatic regular polling acquires data, and collected data are transmitted to cloud using 4G network by 4G communication module and taken by data processing module
Business device；
If 2) MCU judges that 4G signal is weaker than given threshold, keep 4G communication module standby and enabled high-frequency radio frequency communication mould
Block, high-frequency radio frequency communication module and wind field server end carry out wireless data communication, and wind field server passes through optical fiber or wireless again
Communication module and Cloud Server carry out data interaction；
3) when 4G module by signal is restored to threshold value or more, then MCU controls that high-frequency radio frequency communication module is standby and enabled 4G
Communication module is to be directly transferred to Cloud Server for collected data.
It the advantages of the utility model and has the beneficial effect that
The on-line monitoring system of the utility model for gear box lubricating oil Oil Quality data it is real-time acquisition, store,
Transmission, lubrication oil circulation component be with the unique crosslink part of gearbox system, by drawing oil from the oil outlet of gear-box mechanical pump
To the oil inlet of monitoring cabinet, then from monitoring cabinet oil outlet oil return to gear-box air filtering core, it can effectively save lubricating oil
With oil mass, extend the gear box arrangement service life, in time, accurately determines equipment attrition state, and then take effective maintenance measure, drop
Low equipment failure rate.Furthermore it can effectively mitigate the workload of staff, improve lubricating oil system management level, reduce equipment
Loss, control, save the cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model Wind turbines lubricating oil on-line monitoring system.
Fig. 2 is the circuit diagram of the communication switching module of the utility model Wind turbines lubricating oil on-line monitoring system.
Fig. 3 show data processing module structural schematic diagram.
It for those of ordinary skill in the art, without creative efforts, can be according to above attached
Figure obtains other relevant drawings.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, combined with specific embodiments below into one
Step illustrates the technical solution of the utility model.
Embodiment one
A kind of Wind turbines lubricating oil on-line monitoring system of the utility model, including monitoring cabinet, sensor unit, number
According to processing module, power management module and lubrication oil circulation component, the lubrication oil circulation component includes that connection is described
Production pipe of the oil outlet of the mechanical pump of the gear-box of Wind turbines to the described monitoring cabinet, and the monitoring case that connection is described
The oil return pipe of body and gear-box.
Mechanical pump is standard configuration part of the factory with regard to band, and by taking V52 blower as an example, high speed shaft forced feed lubrication has to indispensable portion
Part, high speed shaft of gearbox provide power to mechanical pump, air in pipeline are squeezed, so that oil liquid is extracted into pipeline in fuel tank.If
In the case that wind is small, draught fan impeller is not rotated, and high speed shaft there will not be revolving speed, and mechanical pump will not act, under high speed conditions,
It will increase into the intracorporal oil flow of monitoring case, by moistening in mechanical pump oil outlet Set scale valve or throttle valve in guidance
Lubricating oil enters monitoring cabinet, then can reduce influence of the flow velocity to measurement, can ignore.That is, the monitoring data and wind of any time
Machine working condition is corresponding, effectively improves dimension when data analysis, improves resolvability.
The on-line monitoring system of the utility model for gear box lubricating oil Oil Quality data it is real-time acquisition, store,
Transmission, lubrication oil circulation component be with the unique crosslink part of gearbox system, by drawing oil from the oil outlet of gear-box mechanical pump
To the oil inlet of monitoring cabinet, then from monitoring cabinet oil outlet oil return to gear-box air filtering core, it can effectively save lubricating oil
With oil mass, extend the gear box arrangement service life, in time, accurately determines equipment attrition state, and then take effective maintenance measure, drop
Low equipment failure rate.Furthermore it can effectively mitigate the workload of staff, improve lubricating oil system management level, reduce equipment
Loss, control, save the cost.
Wherein, the sensor unit includes that granularity sensor, viscosity sensor, moisture transducer and dielectric are normal
Number sensor, the granularity sensor setting is in the monitoring bottom of box.It is arranged and its detecting part is installed upward vertically in bottom
Part effectively avoids particle from being deposited on the influence in monitoring case body to measurement result, improves detection accuracy, and each sensor passes through spiral shell
Line is installed and rubber ring is arranged to improve its sealing effect.Wherein, the granularity sensor will acquire number by CAN bus
According to wireless data transmission unit is transferred to, viscosity sensor, moisture transducer and dielectric constant sensor will by RS485 bus
Acquisition data are transferred to wireless data transmission unit.Using various forms of communications protocol, convenient for utilizing the different data end of MCU
Mouthful, and the laser propagation effect of data is improved, adapt to different sensor types.
In gear-box operation process, the lubricating oil inside gear-box can flow through mechanical pump oil outlet to gear box lubricating oil
Oil liquid on-Line Monitor Device oil inlet, the mechanical pressure appropriate for adjusting mechanical pump oil outlet, enables lubricating oil in mechanical pump
An oil circulation is formed between oil outlet and air filtering core oil return opening.It is powered in gear box lubricating oil oil liquid on-Line Monitor Device
After normal work, sensor unit therein acquires the lubricating oil oil liquid parameter of fuel tank internal, including little particle, big in real time
Grain abrasion concentration, viscosity number dissolve water content, free water content, dielectric constant and oil liquid temperature value, and by these parameter values
Wireless data transmission unit is transferred to by 485 buses, CAN bus.
Embodiment two
As one of specific embodiment, the data processing module includes and sensor unit communication connection
Sensor data acquisition unit, the MCU logic control element being connect with the sensor data acquisition unit communications, Yi Jishou
An enabled high-frequency radio frequency communication unit and 4G communication unit is selected in the communication modes switch unit control, and the high frequency is penetrated
Frequency communication unit such as 433MHz communication unit and 4G communication unit respectively with the MCU logic control element communication connection.Tool
Body, the communication modes switch unit control includes the switch element being electrically connected with the switching enable end of the MCU, institute
The enable end of the high-frequency radio frequency communication unit and 4G communication unit stated is connected through switch element and enabled feeder ear respectively, described
Enabled feeder ear is provided by power management module, and the power management module includes the Transformer Rectifier Unit being connected to external power grid
And UPS, and the constant-current source for stablizing constant current output is provided to sensor, such as the constant-current source of 4ma.Electricity, blower are taken from external electrical network
Do not generate electricity when, as blower breaks down, or artificial pause or it is completely calm when, these situations all do not interfere with the dress
It sets, in case of the normal operation and detection of each equipment on blower.
As shown in Fig. 2, the switch element includes comprising metal-oxide-semiconductor Q17 and triode Q19, the base of the triode Q19
Pole is connected by first resistor R149 with the switching enable end；The source electrode and power management module of the p-type metal-oxide-semiconductor Q17
Enabled feeder ear, as 5V be connected；The drain electrode of the metal-oxide-semiconductor Q17 is connected with the enable end of 433MHz communication module, can lead
The wake-up demand for meeting 433MHz communication unit 5V when logical, i.e., be switched to working condition from standby；The N-channel triode Q19
Collector be connected with the grid of metal-oxide-semiconductor Q17 by second resistance R147；The grid and 4G communication module of the metal-oxide-semiconductor Q17
Enabled feeder ear connect and connect through 3rd resistor R145 with system power supply, the emitter of the triode Q19 is grounded.
R145 is the Europe 30k, and R147 is the Europe 100k, then partial pressure of the system 3rd resistor power supply through R145 and second resistance R147 can meet
The wake-up demand of 4G communication module 3.8V, i.e., be switched to working condition from standby mode to carry out data transmission, and realizes described
Select it is one enabled, it is described it is enabled be from standby to the operation of wake-up, different 4G modules and different 433MHZ modules are called out
Pin of waking up is different, it is only necessary to which corresponding connection does not repeat again herein.
Further, sensor data acquisition module includes input terminal connected, output end and MCU AD corresponding with sensor
The connected operational amplifier amplified with the small signal for exporting sensor of acquisition pin, will can expire after signal acquisition process
The digital transmission condition of foot, avoids transmission attenuation.
Further, it is the positioning and difference of realizing each blower, further includes the GPS unit with the MCU communication connection,
The GPS unit is equally powered by power management module.
Embodiment three
The control method of Wind turbines lubricating oil on-line monitoring system described in the utility model, includes the following steps,
1) mechanical pump enters the oil pump in gear-box to monitor cabinet when wind turbine power generation, and MCU carries out multiple sensor interfaces
Automatic regular polling acquires data, and collected data are transmitted to cloud using 4G network by 4G communication module and taken by data processing module
Business device；
If 2) MCU judges that 4G signal is weaker than given threshold, keep 4G communication module standby and enabled high-frequency radio frequency communication mould
Block, high-frequency radio frequency communication module and wind field server end carry out wireless data communication, and wind field server passes through optical fiber or wireless again
Communication module and Cloud Server carry out data interaction；
3) when 4G module by signal is restored to threshold value or more, then MCU controls that high-frequency radio frequency communication module is standby and enabled 4G
Communication module is to be directly transferred to Cloud Server for collected data.
Wherein, the 4G communication unit is multiple 4g cards to load multiple service providers simultaneously, such as uses connection simultaneously
With mobile or telecommunications sim card, optimal job network is matched by acquisition signal strength and the corresponding 4G of activation communicates list
Member, remaining is in standby.That is, the preferred strongest 4G communication unit of selection signal is then cut when use condition is not satisfied
High-frequency radio frequency communication module is changed to, when there is wherein at least one 4G communication unit to meet threshold requirement, then restores to communicate shape to 4G
State.
The control method of the utility model is carried out by real time data acquisition and by 4G or via local wind field server
The safe and effective transmission of data, guarantees the stability of data transmission, moreover, effective use existing resource, reduces capital construction investment, lead to
The switching for crossing two kinds of transmission modes guarantees the uniqueness of data, and data deposit cloud platform database is managed collectively, can be in real time
Offer trend alarm lamp business service is analyzed according to data, guarantees the running stability of blower.Because of the position that wind field is established
It is all high mountain or the biggish place of wind-force, these local signs of human habitation are less, so the signal covering of communication company will appear problem, have
Place even the signal without 4G signal or some communication company it is very poor.Using compound transmission mode, data are effectively improved
Transmission effect and stability.
The spatially relative terms such as "upper", "lower", "left", "right" have been used in embodiment for ease of explanation, have been used for
Relationship of the elements or features relative to another elements or features shown in explanatory diagram.It should be understood that in addition to figure
Shown in except orientation, spatial terminology is intended to include the different direction of device in use or operation.For example, if in figure
Device be squeezed, the element for being stated as being located at other elements or feature "lower" will be located into other elements or feature "upper".
Therefore, exemplary term "lower" may include both upper and lower orientation.Device, which can be positioned in other ways, (to be rotated by 90 ° or position
In other orientation), it can be interpreted accordingly used herein of the opposite explanation in space.
Moreover, the relational terms of such as " first " and " second " or the like are used merely to one with another with identical
The component of title distinguishes, without necessarily requiring or implying between these components there are any this actual relationship or
Sequentially.
Illustrative description has been done to the utility model above, it should explanation, in the core for not departing from the utility model
In the case where the heart, it is any it is simple deformation, modification or other skilled in the art can not spend creative work etc.
The protection scope of the utility model is each fallen with replacement.
Claims (10)
1. a kind of Wind turbines lubricating oil on-line monitoring system, it is characterised in that: including monitoring cabinet, sensor unit, data
Processing module, power management module and lubrication oil circulation component, the lubrication oil circulation component include the connection wind
Production pipe of the oil outlet of the mechanical pump of the gear-box of motor group to the described monitoring cabinet, and the monitoring cabinet that connection is described
With the oil return pipe of gear-box.
2. a kind of Wind turbines lubricating oil on-line monitoring system according to claim 1, it is characterised in that: the oil recovery
The side side of pipe access monitoring cabinet, the production pipe access monitoring body side top, the oil return pipe
It is connected to the air filtering core of gear-box.
3. a kind of Wind turbines lubricating oil on-line monitoring system according to claim 1, it is characterised in that: the sensing
Device unit includes granularity sensor, viscosity sensor, moisture transducer and dielectric constant sensor, and the granularity passes
Sensor setting is in the monitoring bottom of box.
4. a kind of Wind turbines lubricating oil on-line monitoring system according to claim 3, it is characterised in that: the particle
Degree sensor is transferred to wireless data transmission unit, viscosity sensor, moisture transducer and Jie for data are acquired by CAN bus
Electric constant sensor is transferred to wireless data transmission unit for data are acquired by RS485 bus.
5. a kind of Wind turbines lubricating oil on-line monitoring system according to claim 1, it is characterised in that: the power supply
Management module includes the Transformer Rectifier Unit and UPS being connected to external power grid, and the perseverance for stablizing constant current output is provided to sensor
Stream source.
6. a kind of Wind turbines lubricating oil on-line monitoring system according to claim 1, it is characterised in that: the data
Processing module includes the sensor data acquisition unit with sensor unit communication connection, with the sensor data acquisition list
The MCU logic control element of first communication connection, and controlled by communication modes switch unit and select an enabled high-frequency radio frequency communication
Unit and 4G communication unit, the high-frequency radio frequency communication unit and 4G communication unit respectively with the MCU logic control list
First communication connection.
7. a kind of Wind turbines lubricating oil on-line monitoring system according to claim 6, it is characterised in that: the communication
The control of mode switch unit includes the switch element being electrically connected with the switching enable end of the MCU, and the high-frequency radio frequency is logical
The enable end for interrogating unit and 4G communication unit is connected through switch element and enabled feeder ear respectively.
8. a kind of Wind turbines lubricating oil on-line monitoring system according to claim 7, it is characterised in that: the switch
Element includes that the base stage of metal-oxide-semiconductor Q17 and triode Q19, the triode Q19 make by first resistor R149 with the switching
Energy end is connected；The high-frequency radio frequency communication unit is 433MHz communication module, the source electrode of the metal-oxide-semiconductor Q17 and enabled power supply
End is connected；The drain electrode of the metal-oxide-semiconductor Q17 is connected with the enable end of 433MHz communication module；The collector of the triode Q19 passes through
Second resistance R147 is crossed to be connected with the grid of metal-oxide-semiconductor Q17；The grid of the metal-oxide-semiconductor Q17 and the enable end of 4G communication module connect
It connects and is connect through 3rd resistor R145 with system power supply, the emitter ground connection of the triode Q19.
9. a kind of Wind turbines lubricating oil on-line monitoring system according to claim 5, it is characterised in that: sensing data
Acquisition module includes that input terminal connected, output end corresponding with sensor is connected with the AD of MCU acquisition pin to export sensor
The operational amplifier that amplifies of small signal.
10. a kind of Wind turbines lubricating oil on-line monitoring system according to claim 1, it is characterised in that: further include with
The GPS unit of the MCU communication connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821467082.0U CN208705331U (en) | 2018-09-08 | 2018-09-08 | Wind turbine generator system lubricating oil on-line monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821467082.0U CN208705331U (en) | 2018-09-08 | 2018-09-08 | Wind turbine generator system lubricating oil on-line monitoring system |
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| CN208705331U true CN208705331U (en) | 2019-04-05 |
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ID=65946743
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358180A (en) * | 2018-09-08 | 2019-02-19 | 吉睿智控科技（天津）有限公司 | Wind turbine generator lubricating oil on-line monitoring system and monitoring method |
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2018
- 2018-09-08 CN CN201821467082.0U patent/CN208705331U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358180A (en) * | 2018-09-08 | 2019-02-19 | 吉睿智控科技（天津）有限公司 | Wind turbine generator lubricating oil on-line monitoring system and monitoring method |
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