CN114273083A - Electric precipitator polar plate dust thickness monitoring system based on optical fiber sensor - Google Patents
Electric precipitator polar plate dust thickness monitoring system based on optical fiber sensor Download PDFInfo
- Publication number
- CN114273083A CN114273083A CN202111681921.5A CN202111681921A CN114273083A CN 114273083 A CN114273083 A CN 114273083A CN 202111681921 A CN202111681921 A CN 202111681921A CN 114273083 A CN114273083 A CN 114273083A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- fiber sensor
- monitoring
- sensor
- polar plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses an electrostatic precipitator polar plate dust thickness monitoring system based on an optical fiber sensor, which comprises an optical fiber sensing monitoring module, a demodulation module and a control module, wherein the optical fiber sensing monitoring module comprises a signal transmission optical cable and a plurality of optical fiber sensor units fixed on a polar plate, each optical fiber sensor unit comprises an optical fiber strain sensor and an optical fiber temperature sensor, the optical fiber sensor units are connected in series through the signal transmission optical cable, the signal transmission optical cable is connected with the demodulation module, and the demodulation module is connected with the control module. Adopt an electrostatic precipitator polar plate dust thickness monitoring system based on optical fiber sensor of above-mentioned structure, an electrostatic precipitator polar plate dust thickness monitoring system based on optical fiber sensor, in the inside strong electric field environment of electrostatic precipitator, use a plurality of optical fiber sensors to establish ties and realize the real-time on-line monitoring to electrostatic precipitator polar plate dust thickness, improved monitoring result reliability and accuracy.
Description
Technical Field
The invention relates to the technical field of monitoring of pole plates of electric dust collectors, in particular to an electric dust collector pole plate dust thickness monitoring system based on an optical fiber sensor.
Background
In the electric dust collector, a high-voltage direct-current non-uniform electric field is utilized to ionize gas molecules in the flue gas, a large amount of electrons and ions are generated, and the electrons and the ions move towards the two poles under the action of the electric field force; the dust particles in the air flow are touched to charge the dust particles in the moving process, and the charged dust is separated from the air flow and moves towards the air flow under the action of an electric field force; most of the charges are released after the charged dust reaches the polar plate and are adsorbed on the polar plate by virtue of intermolecular force and residual electrostatic force. After the dust is adsorbed to a certain degree, the dust is stripped from the polar plate and falls into the dust hopper through the rapping device.
In order to increase the dust removal efficiency, it is particularly important to select the rapping time of the rapping device. The vibration time is too late, the accumulated dust of the polar plate is too thick, so that the conductivity between the electrodes is reduced, and the dust adsorption is not facilitated; the dust can be dispersed into broken powder and fall down when the rapping time is too early, and larger secondary dust raising is caused. And the traditional periodic rapping is too mechanized due to the influence of working condition changes such as the type of fire coal, the combustion temperature and the like, so that the stable and efficient dust removal of the electric dust collector cannot be realized. Therefore, the real-time monitoring of the dust thickness of the anode plate of the electric dust collector is realized, and the selection of the proper rapping time is particularly important for improving the dust removal efficiency of the electric dust collector. In the existing research, the thickness of dust is monitored by a thickness gauge (CN 103537377A-an ash cleaning method based on an anode plate rapping device of an electric dust collector), a dust concentration sensor (CN 206577908U-an intelligent monitoring and diagnosing device of the electric dust collector) and the like. However, the two methods are mainly point tests or indirect tests, the overall dust deposition state of the plate cannot be accurately reflected, the used sensor does not consider the actual environment, the reliability of the measurement result under the action of a strong electric field is poor, and the measurement accuracy is low.
Disclosure of Invention
The invention aims to provide an electric precipitator pole plate dust thickness monitoring system based on an optical fiber sensor, which realizes real-time online monitoring of the electric precipitator pole plate dust thickness by using the optical fiber sensor in a strong electric field environment inside an electric precipitator, and improves the reliability and accuracy of a monitoring result.
In order to achieve the purpose, the invention provides an electric precipitator pole plate dust thickness monitoring system based on an optical fiber sensor, which comprises an optical fiber sensing monitoring module, a demodulation module and a control module, wherein the optical fiber sensing monitoring module comprises a signal transmission optical cable and a plurality of optical fiber sensor units fixed on a pole plate, each optical fiber sensor unit comprises an optical fiber strain sensor and an optical fiber temperature sensor, the optical fiber sensor units are connected in series through the signal transmission optical cable, the signal transmission optical cable is connected with the demodulation module, and the demodulation module is connected with the control module.
Preferably, the fiber sensor unit is welded or adhered to the upper part of the plate surface of the polar plate to be measured or the hook of the polar plate to be measured.
Preferably, the control module includes a display for displaying the dust thickness in real time and a control terminal carrying monitoring software, the control terminal is connected with the display, and the control terminal is communicated with a rapping device of the electric dust collector.
Preferably, the control terminal is a computer or a mobile phone, the control terminal is used for converting the data of the optical fiber sensor unit into real-time dust thickness and a set threshold value, and when the real-time dust thickness reaches the set threshold value, the control terminal sends a signal for starting the rapping device to the electric dust collector and starts the rapping device.
Preferably, the optical fiber temperature sensor collects the ambient temperature of the real-time optical fiber strain sensor and performs temperature compensation on the data of the optical fiber strain sensor.
The action process of the invention is as follows: the change of the strain of the polar plate after dust attachment is monitored through the optical fiber strain sensing unit, the change of the mass of the attached dust is obtained, and the change of the thickness of the dust is further obtained. The optical fiber sensor signal is demodulated through the demodulation module, dust thickness change is displayed through dust thickness real-time monitoring software, a dust thickness monitoring threshold value is set on the software, a rapping device is communicated after the dust thickness monitoring threshold value is reached, and the rapping polar plate is rapped to remove dust.
Therefore, the electric dust collector polar plate dust thickness monitoring system based on the optical fiber sensor, which adopts the structure, has the following beneficial effects:
(1) adopt the optical fiber sensor unit to include optic fibre strain sensor and optic fibre temperature sensor, do not receive the influence of strong electric field environment, improved the reliability of monitoring result, carry out temperature compensation through optic fibre temperature sensor simultaneously, improve the accuracy of monitoring result.
(2) Adopt a plurality of optical fiber sensor units of signal transmission optical cable series connection, realize the detection to a plurality of polar plates, under the circumstances of guaranteeing the detection range, greatly reduced system's complexity selects suitable time of shaking according to the monitoring of dust thickness, guarantees the stable high-efficient dust removal of electrostatic precipitator.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of an electrostatic precipitator pole plate dust thickness monitoring system based on an optical fiber sensor according to the present invention;
fig. 2 is a schematic diagram of the result of the optical fiber sensing monitoring module according to the present invention.
Reference numerals
1. A polar plate to be tested; 2. an optical fiber sensor unit; 21. an optical fiber strain sensor; 22. an optical fiber temperature sensor; 3. a signal transmission optical cable; 4. a demodulation module; 5. a control terminal; 6. a display.
Detailed Description
Examples
Fig. 1 is a schematic structural diagram of an electrostatic precipitator polar plate dust thickness monitoring system based on an optical fiber sensor, fig. 2 is a schematic result diagram of an optical fiber sensing monitoring module of the present invention, as shown in the figure, an electrostatic precipitator polar plate dust thickness monitoring system based on an optical fiber sensor includes an optical fiber sensing monitoring module, a demodulation module 4 and a control module, the optical fiber sensing monitoring module includes a signal transmission optical cable 3 and a plurality of optical fiber sensor units 2 fixed on a polar plate 1, the optical fiber sensor units 2 are welded or bonded on the upper portion of the plate 1 to be measured or on the hook of the polar plate 1 to be measured, and this embodiment is bonded on the upper portion of the plate 1 to be measured. The optical fiber sensor unit 2 includes an optical fiber strain sensor 21 and an optical fiber temperature sensor 22, and the optical fiber strain sensor 21 and the optical fiber temperature sensor 22 are connected in series. A plurality of optical fiber sensor units 2 are connected in series through signal transmission optical cables 3, realize the detection to a plurality of polar plates 1 that await measuring, under the circumstances of guaranteeing the detection range, greatly reduced system's complexity selects suitable rapping time according to the monitoring of dust thickness, guarantees the stable high-efficient dust removal of electrostatic precipitator. The optical fiber strain sensor 21 is used for detecting strain change of the polar plate 1 to be detected to obtain change of dust quality, so that change of dust thickness is obtained, the optical fiber temperature sensor 22 collects real-time environment temperature of the optical fiber strain sensor 21 to perform temperature compensation on data of the optical fiber strain sensor 21, and the optical fiber temperature sensor 22 is close to the optical fiber strain sensor 21 as far as possible to guarantee effectiveness of temperature compensation. The optical fiber strain sensor 21 and the optical fiber temperature sensor 22 are not affected by a strong electric field environment, so that the reliability of the monitoring result is improved, and meanwhile, the accuracy of the monitoring result is improved by performing temperature compensation through the optical fiber temperature sensor. Signal transmission optical cable 3 is connected with demodulation module 4, and demodulation module 4 is connected with control module, carries the data that a plurality of optical fiber sensor unit 2 gathered to control module, and control module is including the display 6 that is used for showing the dust thickness in real time and the control terminal 5 that has the monitoring software of carrying, and control terminal 5 is connected with display 6, and control terminal 5 communicates with electrostatic precipitator's rapping device mutually. The control terminal 5 is a computer, the control terminal 5 is used for converting the data of the optical fiber sensor unit 2 into real-time dust thickness and a set threshold value, when the real-time dust thickness reaches the set threshold value, the control terminal 5 sends a signal for starting the rapping device to the electric dust collector, and the rapping device is started.
Therefore, the system for monitoring the dust thickness of the polar plates of the electric dust collector based on the optical fiber sensor improves the reliability and accuracy of monitoring results and realizes comprehensive detection of a plurality of polar plates to be detected.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides an electrostatic precipitator polar plate dust thickness monitoring system based on optical fiber sensor which characterized in that: the optical fiber sensing monitoring device comprises an optical fiber sensing monitoring module, a demodulation module and a control module, wherein the optical fiber sensing monitoring module comprises a signal transmission optical cable and a plurality of optical fiber sensor units fixed on a polar plate, each optical fiber sensor unit comprises an optical fiber strain sensor and an optical fiber temperature sensor, the optical fiber sensor units are connected in series through the signal transmission optical cable, the signal transmission optical cable is connected with the demodulation module, and the demodulation module is connected with the control module.
2. The system for monitoring the dust thickness of the polar plates of the electric dust collector based on the optical fiber sensor is characterized in that: and the fiber sensor unit is welded or bonded on the upper part of the plate surface of the polar plate to be detected or the hook of the polar plate to be detected.
3. The system for monitoring the dust thickness of the polar plates of the electric dust collector based on the optical fiber sensor is characterized in that: the control module comprises a display for displaying the dust thickness in real time and a control terminal carrying monitoring software, the control terminal is connected with the display, and the control terminal is communicated with a rapping device of the electric dust collector.
4. The system for monitoring the dust thickness of the pole plates of the electric dust collector based on the optical fiber sensor is characterized in that: the control terminal is a computer or a mobile phone and is used for converting data of the optical fiber sensor unit into real-time dust thickness and a set threshold value, and when the real-time dust thickness reaches the set threshold value, the control terminal sends a signal for starting the rapping device to the electric dust collector and starts the rapping device.
5. The system for monitoring the dust thickness of the pole plates of the electric dust collector based on the optical fiber sensor is characterized in that: the optical fiber temperature sensor collects the real-time environmental temperature of the optical fiber strain sensor and carries out temperature compensation on the data of the optical fiber strain sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681921.5A CN114273083A (en) | 2021-12-31 | 2021-12-31 | Electric precipitator polar plate dust thickness monitoring system based on optical fiber sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681921.5A CN114273083A (en) | 2021-12-31 | 2021-12-31 | Electric precipitator polar plate dust thickness monitoring system based on optical fiber sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114273083A true CN114273083A (en) | 2022-04-05 |
Family
ID=80879924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111681921.5A Pending CN114273083A (en) | 2021-12-31 | 2021-12-31 | Electric precipitator polar plate dust thickness monitoring system based on optical fiber sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114273083A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003933A (en) * | 2010-10-12 | 2011-04-06 | 安徽宾肯电气有限公司 | Dust collection thickness detection alarm device for electrostatic dust collector |
| CN202410838U (en) * | 2011-12-02 | 2012-09-05 | 韶关市曲江明和设备修造有限公司 | Device for intelligently monitoring and controlling vibration of positive electrode of electric dust collector |
| CN202522342U (en) * | 2012-04-27 | 2012-11-07 | 河南科信电缆有限公司 | Electric transmission line monitoring system based on fiber bragg grating sensor |
| CN106123791A (en) * | 2016-08-24 | 2016-11-16 | 北京同度工程物探技术有限公司 | A kind of cable insulation layer thickness method of real-time and device |
| CN205851110U (en) * | 2016-06-30 | 2017-01-04 | 华能吉林发电有限公司长春热电厂 | A kind of coal-fired power plant four electric field electric precipitation intelligence control system |
| CN206229543U (en) * | 2016-09-21 | 2017-06-09 | 广东松山职业技术学院 | Electric dust-collector anode rapping intelligent monitoring diagnostic control device |
| CN107741375A (en) * | 2017-10-20 | 2018-02-27 | 中煤科工集团重庆研究院有限公司 | A kind of dust deposit detection sensing unit, system and method |
| CN211937407U (en) * | 2019-12-23 | 2020-11-17 | 浙江大学 | Dust collection polar plate based on particle trap effect and high-efficiency electrostatic dust collector |
| CN113499856A (en) * | 2021-05-11 | 2021-10-15 | 浙江大学 | Intelligent cooperative control system and method for multi-electric-field multi-channel electric dust removal device |
| CN113819849A (en) * | 2021-08-30 | 2021-12-21 | 中国三峡新能源(集团)股份有限公司四川分公司 | Accumulated dust thickness detection device and accumulated dust cleaning alarm system |
-
2021
- 2021-12-31 CN CN202111681921.5A patent/CN114273083A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003933A (en) * | 2010-10-12 | 2011-04-06 | 安徽宾肯电气有限公司 | Dust collection thickness detection alarm device for electrostatic dust collector |
| CN202410838U (en) * | 2011-12-02 | 2012-09-05 | 韶关市曲江明和设备修造有限公司 | Device for intelligently monitoring and controlling vibration of positive electrode of electric dust collector |
| CN202522342U (en) * | 2012-04-27 | 2012-11-07 | 河南科信电缆有限公司 | Electric transmission line monitoring system based on fiber bragg grating sensor |
| CN205851110U (en) * | 2016-06-30 | 2017-01-04 | 华能吉林发电有限公司长春热电厂 | A kind of coal-fired power plant four electric field electric precipitation intelligence control system |
| CN106123791A (en) * | 2016-08-24 | 2016-11-16 | 北京同度工程物探技术有限公司 | A kind of cable insulation layer thickness method of real-time and device |
| CN206229543U (en) * | 2016-09-21 | 2017-06-09 | 广东松山职业技术学院 | Electric dust-collector anode rapping intelligent monitoring diagnostic control device |
| CN107741375A (en) * | 2017-10-20 | 2018-02-27 | 中煤科工集团重庆研究院有限公司 | A kind of dust deposit detection sensing unit, system and method |
| CN211937407U (en) * | 2019-12-23 | 2020-11-17 | 浙江大学 | Dust collection polar plate based on particle trap effect and high-efficiency electrostatic dust collector |
| CN113499856A (en) * | 2021-05-11 | 2021-10-15 | 浙江大学 | Intelligent cooperative control system and method for multi-electric-field multi-channel electric dust removal device |
| CN113819849A (en) * | 2021-08-30 | 2021-12-21 | 中国三峡新能源(集团)股份有限公司四川分公司 | Accumulated dust thickness detection device and accumulated dust cleaning alarm system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202237638U (en) | Measurement and control system used in high temperature smoke filter | |
| CN104729968A (en) | Online monitoring system and test method for dust concentration | |
| CN109932602A (en) | It is a kind of for monitoring the universal test device and monitoring method of electronic system state | |
| CN114273083A (en) | Electric precipitator polar plate dust thickness monitoring system based on optical fiber sensor | |
| CN110441707A (en) | A kind of health state of lithium ion battery acoustic emission detection system and method | |
| CN2814405Y (en) | On-line measuring device for break-out rate of electric cleaning dust and residual heat recovery system | |
| CN104634703B (en) | Air ion Mobility Spectrum Analysis method and instrument | |
| CN102814292A (en) | Lithium ion battery consistency matching method and system | |
| CN204854803U (en) | A on -line monitoring device that it is basic stable that is used for tunnel to hang fan | |
| CN217796703U (en) | Intelligent visual operation system of electric dust remover of coal-fired power plant | |
| CN207490067U (en) | A kind of valve-regulated lead-acid battery on-Line Monitor Device | |
| CN202994904U (en) | Apparatus for measuring working condition dust specific resistance | |
| CN102831665B (en) | Power transmission tower intensity and vibration off-line intelligent routing inspection system and early warning method thereof | |
| CN115754761A (en) | Detection device for performance of storage battery and control method thereof | |
| CN105115885B (en) | A kind of portable ground net corrosion condition monitoring system and monitoring method | |
| CN203101268U (en) | Portable non-dispersive infrared flue gas analyzer | |
| CN202870084U (en) | Detection device | |
| CN202824976U (en) | Current signal conditioning circuit of resistance spot welding quality on-line monitoring device | |
| CN203733119U (en) | Oil level output device and vehicle | |
| CN117517152A (en) | Device for detecting outlet dust concentration of dry electric dust collector | |
| CN112415290A (en) | GIS panoramic charge measurement system based on Fabry-Perot cavity optical measurement | |
| CN112050889A (en) | Data inspection system for camera shooting water meter data center | |
| CN203758990U (en) | Sampling device for detecting adsorptive property of fine particulate matters on surfaces of plant leaves | |
| CN206074745U (en) | A kind of distribution line failure positioner | |
| CN209459882U (en) | One kind being bolted stability testing stand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |