CN204881878U - Excitation system temperature monitoring device - Google Patents
Excitation system temperature monitoring device Download PDFInfo
- Publication number
- CN204881878U CN204881878U CN201520706507.9U CN201520706507U CN204881878U CN 204881878 U CN204881878 U CN 204881878U CN 201520706507 U CN201520706507 U CN 201520706507U CN 204881878 U CN204881878 U CN 204881878U
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- temperature
- excitation system
- control unit
- communication module
- switch board
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Abstract
The utility model relates to an excitation system temperature monitoring device, including a plurality of temperature sensor, its characterized in that: temperature sensor arranges respectively in excitation system's each the excitation power cabinet and the hot air exitus department of switch board, is equipped with temperature control unit in excitation system's the switch board in addition, data acquisition analysis module that temperature control unit is linked to each other by the signal output part with each temperature sensor, be connected and constitute in inside communication module, RS485 communication module and the analog output module of data acquisition analysis module output respectively, excitation system's switch board peripheral hardware has the temperature -indicating element who utilizes inside communication module to link to each other with temperature control unit, be equipped with the infra -red transmitter that temperature display window, parameter set up the button and corresponded with the infrared receiver of reserve air conditioner on temperature -indicating element's the panel. Cost, the timely reserve air conditioner of automatic start are used reliably, are practiced thrift to it.
Description
Technical field
The utility model relates to a kind of excitation system device for monitoring temperature.
Background technology
The regulation and control center that the excitation con-trol of generator exports as generator stable is playing an important role without the distribution of work, the stability that improves electric system between stabilize terminal voltage, reasonable distribution paired running unit.Excitation cubicle is as the carrier of carrying excitation equipments, its in-cabinet temperature directly affects precision and the stability of excitation con-trol, the too high easy silicon rectifier to excitation output of in-cabinet temperature and other electron devices cause overaging, the operational use time of reduction equipment, even occur potential safety hazard.
Generator excited system all occurs in complete mode, 300MW unit is furnished with a switch board, a demagnetization cabinet and three power cabinets, and 1000MW power of the assembling unit cabinet will be increased to five, so just there is a difficult problem in temperature monitoring work, if all temperature spots that will monitor all are uploaded to pulpit in analog quantity mode, so a unit at least will have five to eight temperature datas to need to upload, and temperature acquisition passage cost is very high in the DCS control system of existing generator excited system, and too much analog quantity channel also can reduce the travelling speed of whole system, if utilize DCS control system to carry out temperature acquisition closed-loop control, cannot realize automatically controlling air conditioning function for subsequent use and can only output alarm contact, but the temperature due to excitation system controls all to adopt forces cooling (generally to adopt three or four work air-conditionings, an air-conditioning for subsequent use), then utilize contact mode to carry out object that temperature alarming cannot realize automatically controlling air-conditioning for subsequent use at all.And if only select one or two temperature spot to upload the duty cannot reacting excitation system, and, any one cupboard temperature of excitation system goes wrong and can cause excitation system job insecurity, cause unit (unplanned outage) out of service, this is exhausted unallowed situation in fuel-burning power plant.Because power cabinet inside is all electrification in high voltage positions, it is very dangerous for opening cabinet door in operation, and therefore opening cupboard, to carry out temperature detection be also irrealizable.Generation current machine excitation system does not also have effective equipment whole system being carried out to monitoring temperature.
Summary of the invention
Problem to be solved in the utility model uses reliable, cost-saving, automatically to start air-conditioning for subsequent use in time omnibearing excitation system device for monitoring temperature to provide a kind of.
The technical solution of the utility model is:
A kind of excitation system device for monitoring temperature, comprise multiple temperature sensor, it is characterized in that: described temperature sensor is arranged in each exciting power cabinet of excitation system and the hot-blast outlet place of switch board respectively, separately temperature control unit is provided with in the switch board of excitation system, described temperature control unit is by the data collection and analysis module be connected with the signal output part of each temperature sensor, be connected to the internal communication module of data collection and analysis module output terminal, RS485 communication module and analog output module composition, the switch board peripheral hardware of described excitation system has the temperature display unit utilizing internal communication module to be connected with temperature control unit, the panel of described temperature display unit is provided with Temperature displaying window, parameter set button and the infrared transmitter corresponding with the infrared remote receiver of air-conditioning for subsequent use.
Above-mentioned excitation system device for monitoring temperature, the panel of described temperature control unit is provided with the window of displays temperature control point quantity and monitoring temperature simultaneously.
Above-mentioned excitation system device for monitoring temperature, described analog output module is connected with host computer respectively by cable with RS485 communication module, realizes telemonitoring to transmit temperature data to host computer.
Above-mentioned excitation system device for monitoring temperature, the accuracy class of described temperature sensor is 0.5 grade.
The beneficial effects of the utility model are: newly-increased temperature control unit gathers the temperature at the hot-blast outlet place of each exciting power cabinet and switch board, then the newly-increased temperature display unit display outside switch board is sent to, simultaneously when the temperature maximum collected is greater than design temperature, infrared transmitter is utilized to start air-conditioning temperature-reducing for subsequent use, thus the monitoring temperature realized whole excitation system, use reliable, both the acquisition channel of host computer DCS control system had been saved, also possessed the function of timely startup air-conditioning for subsequent use, completed the function of real-time closed-loop control temperature.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model (omitting temperature sensor in figure);
Fig. 2 is fundamental diagram of the present utility model;
Fig. 3 is workflow diagram of the present utility model.
Embodiment
As shown in the figure, this excitation system device for monitoring temperature, comprise temperature sensor, the quantity of described temperature sensor is multiple and is arranged in each exciting power cabinet of excitation system and the hot-blast outlet place of switch board 4 respectively, temperature control unit 1 is separately provided with in the switch board 4 of excitation system, described temperature control unit 1 is by the data collection and analysis module be connected with the signal output part of each temperature sensor, be connected to the internal communication module of data collection and analysis module output terminal, RS485 communication module and analog output module composition, switch board 4 peripheral hardware of described excitation system has the temperature display unit 2 utilizing described internal communication module to be connected with temperature control unit 1.The panel of described temperature display unit 2 is provided with Temperature displaying window 201, for arranging the parameter set button 202 of limiting temperature etc. and the infrared transmitter 203 corresponding with the infrared remote receiver of air-conditioning for subsequent use.The panel of described temperature control unit 1 is provided with the window 101 of displays temperature control point quantity and monitoring temperature simultaneously.Described analog output module is connected with host computer respectively by cable with RS485 communication module, realizes telemonitoring to transmit temperature data to host computer.In the present embodiment, the accuracy class of each temperature sensor is 0.5 grade.Be connected by standard DB9 line 3 between temperature control unit 1 with temperature display unit 2.
During use, see Fig. 3, power on start, parameter initialization, by temperature sensor multiple temperature spot data needing monitoring, carry out discrete acquisitions on the spot, then concentrated by temperature control unit 1 and carry out data processing, data after process are presented at temperature display unit 2 by internal communication module, also analog output (4-20mA electric current) carries out data record and monitoring to host computer simultaneously, the temperature maximum transmitted when temperature sensor transfinites, temperature control unit 1 sends steering order to infrared transmitter 203, start air-conditioning for subsequent use and report to the police, work in rational temperature range to make excitation system equipment.
Claims (4)
1. an excitation system device for monitoring temperature, comprise multiple temperature sensor, it is characterized in that: described temperature sensor is arranged in each exciting power cabinet of excitation system and the hot-blast outlet place of switch board respectively, separately temperature control unit is provided with in the switch board of excitation system, described temperature control unit is by the data collection and analysis module be connected with the signal output part of each temperature sensor, be connected to the internal communication module of data collection and analysis module output terminal, RS485 communication module and analog output module composition, the switch board peripheral hardware of described excitation system has the temperature display unit utilizing internal communication module to be connected with temperature control unit, the panel of described temperature display unit is provided with Temperature displaying window, parameter set button and the infrared transmitter corresponding with the infrared remote receiver of air-conditioning for subsequent use.
2. excitation system device for monitoring temperature according to claim 1, is characterized in that: the panel of described temperature control unit is provided with the window of displays temperature control point quantity and monitoring temperature simultaneously.
3. excitation system device for monitoring temperature according to claim 1, is characterized in that: described analog output module is connected with host computer respectively by cable with RS485 communication module, realizes telemonitoring to transmit temperature data to host computer.
4. excitation system device for monitoring temperature according to claim 1, is characterized in that: the accuracy class of described temperature sensor is 0.5 grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520706507.9U CN204881878U (en) | 2015-09-10 | 2015-09-10 | Excitation system temperature monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520706507.9U CN204881878U (en) | 2015-09-10 | 2015-09-10 | Excitation system temperature monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204881878U true CN204881878U (en) | 2015-12-16 |
Family
ID=54826240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520706507.9U Expired - Fee Related CN204881878U (en) | 2015-09-10 | 2015-09-10 | Excitation system temperature monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204881878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941364A (en) * | 2017-12-15 | 2018-04-20 | 中国长江电力股份有限公司 | A kind of generator excitation equipment temperature measuring equipment and method based on the more temperature transducers of infrared, fluorescence optical fiber |
-
2015
- 2015-09-10 CN CN201520706507.9U patent/CN204881878U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941364A (en) * | 2017-12-15 | 2018-04-20 | 中国长江电力股份有限公司 | A kind of generator excitation equipment temperature measuring equipment and method based on the more temperature transducers of infrared, fluorescence optical fiber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20170910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |