CN204945829U - Power-driven generator leaf bearing temperature observation circuit - Google Patents
Power-driven generator leaf bearing temperature observation circuit Download PDFInfo
- Publication number
- CN204945829U CN204945829U CN201520753911.1U CN201520753911U CN204945829U CN 204945829 U CN204945829 U CN 204945829U CN 201520753911 U CN201520753911 U CN 201520753911U CN 204945829 U CN204945829 U CN 204945829U
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- output terminal
- electrically connected
- temperature controller
- input end
- control box
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- Control Of Eletrric Generators (AREA)
- Wind Motors (AREA)
Abstract
The utility model is a kind of power-driven generator leaf bearing temperature observation circuit, comprises temperature controller, registering instrument, sensor R
4, control box PLC and Distributed Control System (DCS) DCS, be characterized in, the input end of temperature controller is electrically connected with bearing temperature sensor Rt, relay normally open contact J1-2 is electrically connected with between output terminal b at the output terminal a of temperature controller, relay normally closed contact J1-1 is electrically connected with between output terminal c at the output terminal a of temperature controller, the output terminal a of temperature controller is electrically connected with the input end 2.1 of control box PLC, and the output terminal b of temperature controller is by build-out resistor R
0be electrically connected with the input end 2.2 of control box PLC, the output terminal c of temperature controller is by sensor R
4be electrically connected with the input end 2.2 of control box PLC.Can Real-time Collection fan blade bearing temperature monitoring signal, promptly and accurately grasp running status, avoid bearing fault to occur.
Description
Technical field
The utility model relates to technical field of wind power, is a kind of power-driven generator leaf bearing temperature observation circuit.
Background technology
Wind-power electricity generation has the advantages such as energy-saving and environmental protection, is widely used.Wind power plant by tens, a hundreds of aerogenerator unit forms, usually its power have hundreds of kilowatt to a few megawatt not etc.The genset of wind power plant is undertaken controlling and monitoring by Distributed Control System (DCS) (DCS).The deficiencies in the prior art part is; lack the temperature monitoring to power-driven generator leaf bearing; bearing is the support component of power-driven generator leaf rotation axis; the effect being subject to rotation friction is very easily generated heat and is made service life reduction; there is potential safety hazard; bearing, once damage, will cause compressor emergency shutdown, even major accident occur.Therefore, power-driven generator leaf bearing temperature is monitored particularly important, bearing temperature information can be provided in real time by monitoring, science grasps bearing behaviour in service, take necessary measure in time, avoid the consequence because bearing damage causes, be conducive to safe operation of wind turbine and contribute to improving generating capacity.
Summary of the invention
It is simple that the purpose of this utility model is to provide a kind of structure, can Real-time Collection fan blade bearing temperature monitoring signal, promptly and accurately grasps running status, the power-driven generator leaf bearing temperature observation circuit avoiding bearing fault to occur.
The technical scheme realizing the employing of its object is: a kind of power-driven generator leaf bearing temperature observation circuit, it comprises temperature controller, registering instrument, sensor R
4, control box PLC and Distributed Control System (DCS) DCS, temperature controller is electrically connected with registering instrument, and the output terminal of control box PLC is electrically connected with the input end of Distributed Control System (DCS) DCS, it is characterized in that, also comprises bearing temperature sensor Rt, build-out resistor R
0, relay normally closed contact J1-1 and relay normally open contact J1-2, the input end of described temperature controller is electrically connected with bearing temperature sensor Rt, relay normally open contact J1-2 is electrically connected with between output terminal b at the output terminal a of temperature controller, relay normally closed contact J1-1 is electrically connected with between output terminal c at the output terminal a of temperature controller, the output terminal a of temperature controller is electrically connected with the input end 2.1 of control box PLC, and the output terminal b of temperature controller is by build-out resistor R
0be electrically connected with the input end 2.2 of control box PLC, the output terminal c of temperature controller is by sensor R
4be electrically connected with the input end 2.2 of control box PLC.
Power-driven generator leaf bearing temperature observation circuit of the present utility model, when fan blade bearing temperature does not reach design temperature protection value, relay normally closed contact J1-1 closes, and relay normally open contact JI-2 opens, and system is in normal operating conditions; When fan blade bearing temperature reaches temperature protection setting value, relay J 1-1 normally closed contact disconnects, and meanwhile, relay normally open contact J1-2 closes, and aerogenerator is shut down, and Distributed Control System (DCS) DCS reports to the police simultaneously, reaches the object of protection fan blade bearing; Build-out resistor R in circuit
0in order to sensor R
4distinguish, Distributed Control System (DCS) DCS shows different temperature values; The registering instrument be connected with temperature controller is for recording the temperature and time of fan blade bearing; Control box PLC and Distributed Control System (DCS) DCS transmission of signal and display.Can Real-time Collection fan bearing temperature, and be delivered to temperature controller by bearing temperature sensor Rt, temperature controller controls to output to control box PLC and Distributed Control System (DCS) DCS, promptly and accurately grasp the running status of fan blade bearing, avoid bearing fault to occur, its structure is simple, and effect is good.
Accompanying drawing explanation
Fig. 1 is power-driven generator leaf bearing temperature observation circuit schematic diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, power-driven generator leaf bearing temperature observation circuit of the present utility model is described further.
With reference to Fig. 1, power-driven generator leaf bearing temperature observation circuit of the present utility model, comprises temperature controller 1, registering instrument 2, sensor R
4, control box PLC3 and Distributed Control System (DCS) DCS4, temperature controller 1 is electrically connected with registering instrument 2, and the output terminal of control box PLC3 is electrically connected with the input end of Distributed Control System (DCS) DCS4, also comprises bearing temperature sensor Rt, build-out resistor R
0, relay normally closed contact J1-1 and relay normally open contact J1-2, the input end of described temperature controller 1 is electrically connected with bearing temperature sensor Rt, relay normally open contact J1-2 is electrically connected with between output terminal b at the output terminal a of temperature controller 1, relay normally closed contact J1-1 is electrically connected with between output terminal c at the output terminal a of temperature controller 1, the output terminal a of temperature controller 1 is electrically connected with the input end 2.1 of control box PLC3, and the output terminal b of temperature controller 1 is by build-out resistor R
0be electrically connected with the input end 2.2 of control box PLC3, the output terminal c of temperature controller 1 is by sensor R
4be electrically connected with the input end 2.2 of control box PLC3.The utility model components and parts used are commercially available prod.
The aerogenerator model of the present embodiment is; G52/G58-850KW wind power generating set.Often organize spacing all more than 150 meters.Unit height is at 80 meters.These genset are by Distributed Control System (DCS) DCS centralized control and monitoring.Fan blade bearing is arranged on 80 meters of height, and two mouthfuls of bearing outside diameters are 380 millimeters and 500 millimeters respectively.On average every mouthful of bearing price is all more than 40,000 yuan.After using power-driven generator leaf bearing temperature observation circuit of the present utility model, understand and grasp the running status of fan blade bearing in time, made fan blade bearing trouble free service in controlled range.
Specific embodiment of the present utility model has made detailed explanation to content of the present utility model; but do not limit to the present embodiment; the any apparent change that those skilled in the art do according to enlightenment of the present utility model, all belongs to the scope of the utility model rights protection.
Claims (1)
1. a power-driven generator leaf bearing temperature observation circuit, it comprises temperature controller, registering instrument, sensor R
4, control box PLC and Distributed Control System (DCS) DCS, temperature controller is electrically connected with registering instrument, and the output terminal of control box PLC is electrically connected with the input end of Distributed Control System (DCS) DCS, it is characterized in that, also comprises bearing temperature sensor Rt, build-out resistor R
0, relay normally closed contact J1-1 and relay normally open contact J1-2, the input end of described temperature controller is electrically connected with bearing temperature sensor Rt, relay normally open contact J1-2 is electrically connected with between output terminal b at the output terminal a of temperature controller, relay normally closed contact J1-1 is electrically connected with between output terminal c at the output terminal a of temperature controller, the output terminal a of temperature controller is electrically connected with the input end 2.1 of control box PLC, and the output terminal b of temperature controller is by build-out resistor R
0be electrically connected with the input end 2.2 of control box PLC, the output terminal c of temperature controller is by sensor R
4be electrically connected with the input end 2.2 of control box PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520753911.1U CN204945829U (en) | 2015-09-28 | 2015-09-28 | Power-driven generator leaf bearing temperature observation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520753911.1U CN204945829U (en) | 2015-09-28 | 2015-09-28 | Power-driven generator leaf bearing temperature observation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204945829U true CN204945829U (en) | 2016-01-06 |
Family
ID=55013239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520753911.1U Expired - Fee Related CN204945829U (en) | 2015-09-28 | 2015-09-28 | Power-driven generator leaf bearing temperature observation circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204945829U (en) |
-
2015
- 2015-09-28 CN CN201520753911.1U patent/CN204945829U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170608 Address after: 132000 No. 80, Jianxin Road, Jilin economic and Technological Development Zone, Jilin, Jilin Patentee after: Jilin Ding Ji power equipment Engineering Co., Ltd Address before: 132101 Jilin economic and Technological Development Zone, Jilin, by the main street, No. 719 Patentee before: JILIN LANGJIE ELECTRIC EQUIPMENT CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20200928 |