CN203337180U - Monitoring device for oil state of gearbox of inland wind turbine generator system - Google Patents

Monitoring device for oil state of gearbox of inland wind turbine generator system Download PDF

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Publication number
CN203337180U
CN203337180U CN2013203479292U CN201320347929U CN203337180U CN 203337180 U CN203337180 U CN 203337180U CN 2013203479292 U CN2013203479292 U CN 2013203479292U CN 201320347929 U CN201320347929 U CN 201320347929U CN 203337180 U CN203337180 U CN 203337180U
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China
Prior art keywords
monitoring
gearbox
wind turbine
unit
signal
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CN2013203479292U
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Chinese (zh)
Inventor
郑震
张腾
陈木海
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常州铠甲智能科技有限公司
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Priority to CN2013203479292U priority Critical patent/CN203337180U/en
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Abstract

The utility model relates to a monitoring device for the oil state of a gearbox of an inland wind turbine generator system. The monitoring device comprises a central processor used for receiving a monitoring signal generated by an oil state monitoring unit, judging by comparing the monitoring signal with a stored standard signal, and packaging a judging result to generate a control signal; a communication unit used for receiving the control signal generated by the central processor and transmitting the control signal to an upper computer; the oil state monitoring unit used for monitoring data of the temperature, metal particles, granularity, dielectric constant, and kinematic viscosity in the gearbox of the inland wind turbine generator system and generating the monitoring signal; and a signal processing unit used for filtering and amplifying the monitoring signal generated by the oil state monitoring unit. The oil state monitoring unit comprises a temperature monitoring module, a metal particle monitoring module, a granularity monitoring module, a dielectric constant monitoring module, and a kinematic viscosity monitoring module, which are connected to an input terminal of the signal processing unit. The monitoring device is capable of instructing demand-based oil change and maintenance of the gearbox.

Description

The monitoring device of inland gearbox of wind turbine fluid state

Technical field

The utility model relates to the monitor technical field, particularly the monitoring device of a kind of inland gearbox of wind turbine fluid state.

Background technology

The main function of gear case in the wind-powered electricity generation unit is that transmission of power that wind wheel is produced under the wind-force effect is to generator and make it obtain corresponding rotating speed.For the gear case of large-scale wind electricity unit, be all to carry out lubricated and heat radiation with oil at present, its state is directly connected to the security of operation of gear case.Fluid is subject to that self is aging, residue is invaded and the various factors such as pollutant intrusion, is difficult to fully characterize its state by one or several single monitoring (detection) methods.Generally, along with the long-time running of wind-powered electricity generation unit, fluid also there will be aging, and its viscosity and specific inductive capacity can change; Produced the metal worn particle of variable grain size, form by the metal parts friction of gear case, may cause on gear the impacts such as surface abrasion, can give the change that brings fluid specific inductive capacity and viscosity simultaneously; The pollutions such as outside sand and dust also can bring viscosity and specific inductive capacity to change, and gear is caused outside surface abrasion, also can affect oil viscosity and stop up hole; Construction at ordinary times, maintenance also can bring the pollutions such as metallic particles, impurity.With respect to offshore wind turbine, land blower fan is subject to the impact of sand and dust larger, so except conventional metal worn particle detects, very necessary to the granularity monitoring.So, by the comprehensive monitoring of metallic particles, granularity, specific inductive capacity, kinematic viscosity data, could reflect preferably the degradation of inland gear case of blower fluid.Can instruct as required change oil (rather than changing oil) on schedule, also can instruct the gear case maintenance and carry out the exterior protection measure, the generation of preventing accident.

Traditional monitoring method is that oil sample is sampled from gearbox of wind turbine, delivers to laboratory, with instrument, tests respectively metallic particles, granularity, specific inductive capacity and kinematic viscosity parameter.Analyze the latency failure condition of this gear case according to the parameter obtained.But this method has complicated operation, monitoring periods long (1 week-March of time cycle is not waited), the large shortcoming of monitoring personal error, causes being not suitable for carrying out Real-Time Monitoring.Thereby can not change oil as required according to parameter in gear case oil, immediately grasp gearbox of wind turbine latency failure condition.

The utility model content

The purpose of this utility model is to overcome the defect that prior art exists, the monitoring device of a kind of inland gearbox of wind turbine fluid state is provided, realizes immediately automatically temperature, metallic particles, granularity, specific inductive capacity, kinematic viscosity parameter in gearbox of wind turbine being monitored.

The technical scheme that realizes the utility model purpose is: the monitoring device of a kind of inland gearbox of wind turbine fluid state, there is the monitor signal generated for receiving the fluid Condition Monitoring Unit, judged with the standard signal stored, and the judged result packing is generated to the central processing unit of control signal; Generate control signal for receiving described central processing unit, and be sent to the communication unit of host computer; For monitoring the data of gearbox of wind turbine temperature, metallic particles, granularity, specific inductive capacity and kinematic viscosity, and generate the fluid Condition Monitoring Unit of monitor signal and carry out filtering and amplify the signal processing unit of processing for the monitor signal that the fluid Condition Monitoring Unit is generated; Described fluid Condition Monitoring Unit comprises temperature monitoring module, metal worn particle monitoring modular, granularity monitoring modular, specific inductive capacity monitoring modular and the kinematic viscosity monitoring modular on the input end of receiving respectively signal processing unit.

The described kinematic viscosity monitoring modular of technique scheme comprises Viscosity Monitoring module and the measuring density module of the input end of receiving respectively signal processing unit.

The described temperature monitoring module of technique scheme, metal worn particle monitoring modular, granularity monitoring modular, specific inductive capacity monitoring modular, Viscosity Monitoring module and measuring density module are arranged on respectively in the oil circuit of gearbox of wind turbine.

The described metal worn particle monitoring modular of technique scheme is solenoid abrasive particle detecting device.

The described granularity monitoring modular of technique scheme is optical particulate degree detecting device.

The described signal processing unit of technique scheme comprises pre-amplification circuit, secondary amplifying circuit and RC filtering circuit; Described pre-amplification circuit, secondary amplifying circuit and RC filtering circuit are electrically connected successively.

Technique scheme also has the switching value signal generated for receiving central processing unit, and output or isolate the unit of outputing of above-mentioned signal; The described switching value signal end of outputing unit and central processing unit is electrically connected.

Technique scheme also has the display unit for the central processing unit duty is shown; Described display unit has the LED lamp of the duty that shows that gearbox of wind turbine fluid status monitoring is different.

Technique scheme also has alarm; The input end of described alarm is connected on the output terminal of central processing unit.

The described communication unit of technique scheme comprises RS232 interface, RS485 interface and Ethernet interface; Described RS232 interface is the ADM3251E chip; Described RS485 interface is the ADM2483 chip.

After adopting technique scheme, the utlity model has following positive effect:

(1) the utility model is monitored the temperature in gearbox of wind turbine oil by the temperature monitoring list, and generates monitor signal; Metal worn particle in metal worn particle monitoring module monitors gearbox of wind turbine oil, and generate monitor signal; Granularity content in granularity monitoring module monitors gearbox of wind turbine oil, and generate monitor signal; Specific inductive capacity in specific inductive capacity monitoring module monitors gearbox of wind turbine oil, and generate monitor signal.Viscosity Monitoring module and measuring density module are calculated formula by kinematic viscosity and are calculated corresponding kinematic viscosity value, the kinematic viscosity of fluid in monitoring gearbox of wind turbine oil.Realize accurately monitoring temperature, metallic particles, granularity, specific inductive capacity, kinematic viscosity data in the gearbox of wind turbine oil product.

(2) communication unit of the present utility model comprises: RS232 interface, RS485 interface and Ethernet interface, realize that many typhoons group of motors gear case fluid monitoring device and host computer form LAN (Local Area Network), are convenient to user monitoring.

(3) the utility model signal processing unit 4 comprises pre-amplification circuit, secondary amplifying circuit and RC filtering circuit; Pre-amplification circuit, secondary amplifying circuit and RC filtering circuit are electrically connected successively, amplification and the filtering of the temperature that has realized the fluid Condition Monitoring Unit is monitored, metallic particles, granularity, specific inductive capacity, kinematic viscosity data message.

(4) display unit of the present utility model has the LED lamp of the duty that shows that gearbox of wind turbine fluid status monitoring is different, for the duty that shows gearbox of wind turbine fluid state monitoring apparatus directly perceived.

(5) the utlity model has alarm, when the fluid status data gathered when central processing unit judgement is abnormal, generate related switch amount signal, export to and output unit and reported to the police.

The accompanying drawing explanation

For content of the present utility model more easily is expressly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein

Fig. 1 is theory diagram of the present utility model;

Fig. 2 is workflow diagram of the present utility model;

Attached number in the figure is: central processing unit 1, communication unit 2, RS232 interface 21, RS485 interface 22, Ethernet interface 23, fluid Condition Monitoring Unit 3, temperature monitoring module 31, metal worn particle monitoring modular 32, granularity monitoring modular 33, specific inductive capacity monitoring modular 34, kinematic viscosity monitoring modular 35, Viscosity Monitoring module 351, measuring density module 352, signal processing unit 4, pre-amplification circuit 41, secondary amplifying circuit 42, RC filtering circuit 43, output unit 5, display unit 6, alarm 7, host computer 8.

Embodiment

(embodiment 1)

See Fig. 1 and Fig. 2, the utlity model has the monitor signal generated for receiving fluid Condition Monitoring Unit 3, judged with the standard signal stored, and the judged result packing is generated to the central processing unit 1 of control signal; Generate control signal for receiving central processing unit 1, and be sent to the communication unit 2 of host computer 8, communication unit 2 comprises RS232 interface 21, RS485 interface 22 and Ethernet interface 23; RS232 interface 21 is the ADM3251E chip; RS485 interface 22 is the ADM2483 chip; The control signal that communication unit 2 generates for receiving central processing unit 1, be sent to host computer, thereby realize the signal transmission between described gearbox of wind turbine fluid state monitoring apparatus and wind-powered electricity generation unit host computer, forms LAN (Local Area Network).More excellent, communication unit 2 also can be used for monitor signal is transferred to external remote network, with the center of the centralized monitor by long-range, receives this signal.For monitoring the data of gearbox of wind turbine temperature, metallic particles, granularity, specific inductive capacity and kinematic viscosity, and generate the fluid Condition Monitoring Unit 3 of monitor signal and carry out filtering and amplify the signal processing unit 4 of processing for the monitor signal that fluid Condition Monitoring Unit 3 is generated; Fluid Condition Monitoring Unit 3 comprises on the input end of receiving respectively signal processing unit 4 and is arranged on respectively temperature monitoring module 31, metal worn particle monitoring modular 32, granularity monitoring modular 33, specific inductive capacity monitoring modular 34 and the kinematic viscosity monitoring modular 35 in the oil circuit of gearbox of wind turbine.Kinematic viscosity monitoring modular 35 comprises Viscosity Monitoring module 351 and the measuring density module 352 of the input end of receiving respectively signal processing unit 4.Wherein, metal worn particle monitoring modular 32 is solenoid abrasive particle detecting device, and the granularity monitoring modular is optical particulate degree detecting device.Signal processing unit 4 comprises pre-amplification circuit 41, secondary amplifying circuit 42 and RC filtering circuit 43; Pre-amplification circuit 41, secondary amplifying circuit 42 and RC filtering circuit 43 are electrically connected successively.Signal processing unit 4 has six road circuit, be respectively used to receive the monitor signal that temperature monitoring module 31, metal worn particle monitoring modular 32, granularity monitoring modular 33, specific inductive capacity monitoring modular 34, Viscosity Monitoring module 351 and measuring density module 352 generate, carry out filtering and amplify and process.

Also there is the switching value signal generated for receiving central processing unit 1, and output or isolate above-mentioned signal output unit 5; For display unit 6 that central processing unit 1 duty is shown with for the alarm 7 of alarm; Outputing unit 5 is electrically connected with the switching value signal end of central processing unit 1.

Display unit 6 has the LED lamp of the duty that shows that gearbox of wind turbine fluid status monitoring is different, central processing unit 1 is in the processing procedure of carrying out data-signal, to display unit 6 transmitted signals, control its demonstration, it when central processing unit 1 is encoded packing, can be for example one of them LED lamp flicker, when at central processing unit 1, controlling data by communication unit 2 transmission, can be that another lamp is glimmered.When breaking down, can control two lamps in normal bright state.

The input end of alarm 7 is connected on the output terminal of central processing unit 1.

Principle of work of the present utility model is: inland gear case of blower fluid on-line monitoring is difficult to just can fully characterize its state by single or several monitorings (detection) method.The fluid state variation mainly contains internal factor and external factor causes, wherein internal factor is mainly because the long-time oil product caused that uses is aging, shows as that oil viscosity is higher, specific inductive capacity is on the low side.External factor mainly comprises residue and invader, and the former mainly refers to that it can bring the wearing and tearing of gear surface due to the fricative metal worn particle of gear, and the latter mainly refers to sand and dust etc., generally can bring the wearing and tearing of gear surface, viscosity higher, stop up hole etc.:

The computing method of viscosity,

Kinematic viscosity (cST): v 40 = v t × e E a / R × ( 1 273 + 40 - 1 273 + t )

The specific inductive capacity computing method,

Specific inductive capacity (without unit): ε 20t+ (t-20) * β * (ε t-20) * (ε t-1)/3

And need to, according to zones of different and different fluid label, carry out the setting of basic value and alarming value.Outward, not separate between parameters, and consider a plurality of parameters and analyzed, could correctly provide the fluid state, and according to the best replacing time of current state prediction fluid with analyze the gearbox fault reason.

When needs are adopted monitoring gearbox of wind turbine fluid status monitoring signal, can be for example the periodic monitoring that sets in advance appointment in central processing unit 1 program, by signal processing unit 4, fluid Condition Monitoring Unit 3 be gathered to temperature, metallic particles, granularity, specific inductive capacity, kinematic viscosity data-signal in fluid amplified, filtering is processed.Then carry out the processing of packing of the certain agreement of basis by 1 pair of signal of monitoring of central processing unit, by communication unit 2, signal is transferred out to host computer more afterwards.Many typhoons group of motors gear case oil product fluid state monitoring apparatus connects to form LAN (Local Area Network) by RS485 interface and a computing machine.Thus, facilitate user's Monitoring Data that monitoring obtains to many typhoons group of motors gear case oil liquid status to manage.When the fluid status data gathered when central processing unit 1 judgement is abnormal, generate related switch amount signal, export to and output unit 5 and reported to the police.

Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (9)

1. the monitoring device of an inland gearbox of wind turbine fluid state, it is characterized in that: there is the monitor signal generated for receiving fluid Condition Monitoring Unit (3), judged with the standard signal stored, and the judged result packing is generated to the central processing unit (1) of control signal; Generate control signal for receiving described central processing unit (1), and be sent to the communication unit (2) of host computer (8); For monitoring the data of gearbox of wind turbine temperature, metallic particles, granularity, specific inductive capacity and kinematic viscosity, and generate the fluid Condition Monitoring Unit (3) of monitor signal and carry out filtering and amplify the signal processing unit (4) of processing for the monitor signal that fluid Condition Monitoring Unit (3) is generated; Described fluid Condition Monitoring Unit (3) comprises temperature monitoring module (31), metal worn particle monitoring modular (32), granularity monitoring modular (33), specific inductive capacity monitoring modular (34) and the kinematic viscosity monitoring modular (35) on the input end of receiving respectively signal processing unit (4).
2. the monitoring device of inland according to claim 1 gearbox of wind turbine fluid state, it is characterized in that: described kinematic viscosity monitoring modular (35) comprises Viscosity Monitoring module (351) and the measuring density module (352) of the input end of receiving respectively signal processing unit (4).
3. the on-Line Monitor Device of inland according to claim 2 gearbox of wind turbine fluid state, it is characterized in that: described temperature monitoring module (31), metal worn particle monitoring modular (32), granularity monitoring modular (33), specific inductive capacity monitoring modular (34), Viscosity Monitoring module (351) and measuring density module (352) are arranged on respectively in the oil circuit of gearbox of wind turbine.
4. the on-Line Monitor Device of inland according to claim 1 gearbox of wind turbine fluid state, it is characterized in that: described metal worn particle monitoring modular (32) is solenoid abrasive particle detecting device, and described granularity monitoring modular (33) is optical particulate degree detecting device.
5. the on-Line Monitor Device of inland according to claim 1 gearbox of wind turbine fluid state, it is characterized in that: described signal processing unit (4) comprises pre-amplification circuit (41), secondary amplifying circuit (42) and RC filtering circuit (43); Described pre-amplification circuit (41), secondary amplifying circuit (42) and RC filtering circuit (43) are electrically connected successively.
6. the on-Line Monitor Device of inland according to claim 1 gearbox of wind turbine fluid state is characterized in that: also there is the switching value signal generated for receiving central processing unit (1), and output or isolate above-mentioned signal output unit (5); The described unit (5) of outputing is electrically connected with the switching value signal end of central processing unit (1).
7. the on-Line Monitor Device of inland according to claim 1 gearbox of wind turbine fluid state, is characterized in that: also have the display unit (6) for central processing unit (1) duty is shown; Described display unit (6) has the LED lamp of the duty that shows that gearbox of wind turbine fluid status monitoring is different.
8. the on-Line Monitor Device of inland according to claim 1 gearbox of wind turbine fluid state, is characterized in that: also have alarm (7); The input end of described alarm (7) is connected on the output terminal of central processing unit (1).
9. the on-Line Monitor Device of inland according to claim 1 gearbox of wind turbine fluid state, it is characterized in that: described communication unit (2) comprises RS232 interface (21), RS485 interface (22) and Ethernet interface (23); Described RS232 interface (21) is the ADM3251E chip; Described RS485 interface (22) is the ADM2483 chip.
CN2013203479292U 2013-06-18 2013-06-18 Monitoring device for oil state of gearbox of inland wind turbine generator system CN203337180U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103954448A (en) * 2014-05-06 2014-07-30 江苏恩达通用设备有限公司 Novel detection device for gearbox monitor
CN104731955A (en) * 2015-04-02 2015-06-24 龙源(北京)风电工程技术有限公司 Methods and systems for diagnostic standard establishment and intelligent diagnosis of wind generation set oil monitoring
CN106015541A (en) * 2016-07-21 2016-10-12 中国电建集团贵阳勘测设计研究院有限公司 Wind driven generator gearbox oil sample monitoring and filtering method and system
CN106323571A (en) * 2016-08-05 2017-01-11 哈尔滨理工大学 Dielectric constant detection-based kerosene monitoring system and method
CN106525141A (en) * 2017-01-06 2017-03-22 中铁隧道集团有限公司 Shield TBM oil liquid state on-line automatic monitoring system
CN108693335A (en) * 2017-04-06 2018-10-23 北京至感传感器技术研究院有限公司 Wind turbines lubricating oil on-line monitoring system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103954448A (en) * 2014-05-06 2014-07-30 江苏恩达通用设备有限公司 Novel detection device for gearbox monitor
CN104731955A (en) * 2015-04-02 2015-06-24 龙源(北京)风电工程技术有限公司 Methods and systems for diagnostic standard establishment and intelligent diagnosis of wind generation set oil monitoring
CN106015541A (en) * 2016-07-21 2016-10-12 中国电建集团贵阳勘测设计研究院有限公司 Wind driven generator gearbox oil sample monitoring and filtering method and system
CN106323571A (en) * 2016-08-05 2017-01-11 哈尔滨理工大学 Dielectric constant detection-based kerosene monitoring system and method
CN106323571B (en) * 2016-08-05 2018-12-11 盐城吉大智能终端产业研究院有限公司 Kerosene based on dielectric constant detection monitors System and method for
CN106525141A (en) * 2017-01-06 2017-03-22 中铁隧道集团有限公司 Shield TBM oil liquid state on-line automatic monitoring system
CN108693335A (en) * 2017-04-06 2018-10-23 北京至感传感器技术研究院有限公司 Wind turbines lubricating oil on-line monitoring system

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