CN103645127A - Back flushing type real-time online monitoring system for smoke pollutants - Google Patents
Back flushing type real-time online monitoring system for smoke pollutants Download PDFInfo
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- CN103645127A CN103645127A CN201310692337.9A CN201310692337A CN103645127A CN 103645127 A CN103645127 A CN 103645127A CN 201310692337 A CN201310692337 A CN 201310692337A CN 103645127 A CN103645127 A CN 103645127A
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Abstract
The invention belongs to the technical field of gas pollution detection and particularly relates to a back flushing type real-time online monitoring system for smoke pollutants. The back flushing type real-time online monitoring system is characterized by comprising a smoke dust monitoring subsystem, a smoke parameter measuring subsystem, a gas-state pollutant analyzing and monitoring subsystem and a data acquisition and control processing output subsystem, wherein the smoke dust monitoring subsystem, the smoke parameter measuring subsystem and the gas-state pollutant analyzing and monitoring subsystem are connected with the data acquisition and control processing output subsystem respectively. The back flushing type real-time online monitoring system for the smoke pollutants has the beneficial effects that an instrument can be stably operated for long time and complicated correction work does not need to be carried out; the loss of SO2 and NOX brought away by condensed water is reduced to the lowest limit so that the accuracy of detection data is guaranteed; the online continuous monitoring for the fixed pollution source pollutant emission concentration and the total emission amount is realized and the measurement precision is high.
Description
Technical field
The invention belongs to gaseous contamination detection technique field, relate in particular to a kind of back flushing type flue gas pollutant real time on-line monitoring system.
Background technology
Current improving constantly along with environmental requirement, for the major polluting sources fume emission industry that guarantees China is towards greenization, free of contamination future development, the industrial plant of related fume emission has all been installed smoke on-line monitoring system (CEMS), and with this CEMS, needs are carried out real-time sampling and detected toward the flue gas discharging in atmosphere, avoid toxic gas to enter atmosphere, contaminated environment.
At present domestic CEMS adopts single sample mode mostly, in flue or chimney, adopts the mode of single-point sampling to carry out flue gas sampling to the flue gas by flue or chimney.But, if while carrying out flue gas sampling in longer flue or chimney, only adopting the too simplification of single-point sample mode, the flue gas sample that causes sampling to obtain does not have actual representativeness.Because CEMS sample mode of the prior art is single, the sample gas obtaining of sampling can not fully represent the smoke behavior in whole flue or chimney, and the data accuracy of measurement is not high.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of back flushing type flue gas pollutant real time on-line monitoring system, use the infrared sampling of flue gas, rear scattering measurement of soot and dust concentration, pitot tube flue gas flow rate measurement and calculation machine network communications technology, realized the on-line continuous monitoring of stationary pollution source Pollutant emission concentration and total emission volumn, measuring accuracy is high.
The present invention adopts following technical scheme to realize:
A kind of back flushing type flue gas pollutant real time on-line monitoring system, it is characterized in that comprising that monitoring smoke dust subsystem, Gas Parameters measurement subsystem, gaseous contaminant are analyzed monitoring subsystem, data acquisition control is processed output subsystem, described monitoring smoke dust subsystem, Gas Parameters measurement subsystem, gaseous contaminant are analyzed monitoring subsystem and are connected with described data acquisition control processing output subsystem respectively;
In described monitoring smoke dust subsystem, be provided with flue gas measuring instrument;
The moisture tester that is provided with flue gas flow rate transmitter and the flow velocity tester being connected with flue gas flow rate transmitter, flue-gas temperature transmitter and the temperature measuring device being connected with flue-gas temperature transmitter, flue gas pressures transmitter and the pressure tester being connected with flue gas pressures transmitter, smoke moisture transmitter in described Gas Parameters measurement subsystem and is connected with smoke moisture transmitter;
In described data acquisition control processing output subsystem, be provided with data acquisition unit and system control interface, remote communication interface, AO/DO interface, system control treating apparatus, output device, described remote communication interface, described AO/DO interface are controlled treating apparatus with described system respectively and are connected, and described system control device is connected with described output device;
Described gaseous contaminant is analyzed monitoring subsystem and is comprised flue gas gaseous contaminant sampling probe, flue gas pretreatment system, gaseous contaminant analyser, described flue gas gaseous contaminant sampling probe is connected with described flue gas pretreatment system, described flue gas pretreatment system is connected with described gaseous contaminant analyser, and described gaseous contaminant analyser is connected with system control interface with described data acquisition unit.
Described flow velocity tester, temperature measuring device, pressure tester, moisture tester are connected with system control interface with described data acquisition unit respectively.
Described gaseous contaminant analyser comprises a wet separator and two electronic coolers.
Described flue gas measuring instrument comprises sampling probe, blowback control box, filtrator, precise cold condenser, unwatering system, accurate filter, gas analyzer, described sampling probe is connected with described blowback control box, described blowback control box is connected with described filtrator, described filtrator is connected with described condensation dewatering unit, draining cylinder respectively, described condensation dewatering unit is connected with described accurate filter, and described accurate filter is connected with described gas analyzer.
Described gas analyzer is infrared gas analyzer.
Between described sampling probe and described blowback control box, be respectively equipped with permanent power heating tape between described blowback control box and described filtrator.
The invention has the beneficial effects as follows: in sampling process, the temperature of sample gas, all the time in higher state, makes the unlikely generation condensation of water in sample gas, thereby improved significantly the condition of work of filtrator; The flue gas different test probe pipelines of can flowing through successively can be measured the corresponding concentration of gas with various simultaneously; The continuous on-line monitoring system of flue gas uses the infrared sampling of flue gas, rear scattering measurement of soot and dust concentration, pitot tube flue gas flow rate measurement and calculation machine network communications technology, has realized the on-line continuous monitoring of stationary pollution source Pollutant emission concentration and total emission volumn; By probe controller and analyser, realize zero standard and across mark function, complete system-wide on-line proving, thereby guaranteed to the full extent the measuring accuracy of system, without manual intervention; Analytic unit adopt alternating current ejector half non-dispersion infrared line detection technique almost rift-free detection method measure the concentration of NOX, SO2, CO and CO2, utilize magnetic pressure technology to measure O2 concentration.Instrument can steady in a long-termly move, and does not need to carry out loaded down with trivial details calibration operation; The SO2 that condensate water can be taken away and NOX loss are reduced to bottom line, thereby guarantee to detect the accuracy of data.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation that gaseous contaminant of the present invention is analyzed monitoring subsystem.
In figure, 1, monitoring smoke dust subsystem, 2, Gas Parameters measurement subsystem, 3, gaseous contaminant is analyzed monitoring subsystem, 4, data acquisition control is processed output subsystem, 5, flue gas measuring instrument, 6, flue gas flow rate transmitter, 7, flow velocity tester, 8, flue-gas temperature transmitter, 9, temperature measuring device, 10, flue gas pressures transmitter, 11, pressure tester, 12, smoke moisture transmitter, 13, moisture tester, 14, data acquisition unit and system control interface, 15, remote communication interface, 16, AO/DO interface, 17, system is controlled treating apparatus, 18, output device, 19, flue gas gaseous contaminant sampling probe, 20, flue gas pretreatment system, 21, gaseous contaminant analyser, 22, sampling probe, 23, blowback control box, 24, filtrator, 25, condensation dewatering unit, 26, unwatering system, 27, accurate filter, 28, gas analyzer, 29, permanent power heating tape.
Embodiment
Below in conjunction with accompanying drawing, a kind of embodiment of invention is explained.
As shown in Figure 1 and Figure 2, the invention provides a kind of back flushing type flue gas pollutant real time on-line monitoring system, it is characterized in that comprising that monitoring smoke dust subsystem 1, Gas Parameters measurement subsystem 2, gaseous contaminant are analyzed monitoring subsystem 3, data acquisition control is processed output subsystem 4, described monitoring smoke dust subsystem 1, Gas Parameters measurement subsystem 2, gaseous contaminant are analyzed monitoring subsystem 3 and are connected with described data acquisition control processing output subsystem 4 respectively;
In described monitoring smoke dust subsystem 1, be provided with flue gas measuring instrument 5;
The moisture tester 13 that is provided with flue gas flow rate transmitter 6 and the flow velocity tester 7 being connected with flue gas flow rate transmitter 6, flue-gas temperature transmitter 8 and the temperature measuring device 9 being connected with flue-gas temperature transmitter 8, flue gas pressures transmitter 10 and the pressure tester 11 being connected with flue gas pressures transmitter 10, smoke moisture transmitter 12 in described Gas Parameters measurement subsystem 2 and is connected with smoke moisture transmitter 12;
In described data acquisition control processing output subsystem 4, be provided with data acquisition unit and system control interface 14, remote communication interface 15, AO/DO interface 16, system control treating apparatus 17, output device 18, described remote communication interface 15, described AO/DO interface 16 are controlled treating apparatus 17 with described system respectively and are connected, and described system control device 17 is connected with described output device 18;
Described gaseous contaminant is analyzed monitoring subsystem 3 and is comprised flue gas gaseous contaminant sampling probe 19, flue gas pretreatment system 20, gaseous contaminant analyser 21, described flue gas gaseous contaminant sampling probe 19 is connected with described flue gas pretreatment system 20, described flue gas pretreatment system 20 is connected with described gaseous contaminant analyser 21, and described gaseous contaminant analyser 21 is connected with system control interface 14 with described data acquisition unit.
Described flow velocity tester 7, temperature measuring device 9, pressure tester 11, moisture tester 13 are connected with system control interface 14 with described data acquisition unit respectively.
Described gaseous contaminant analyser 21 comprises a wet separator and two electronic coolers.
Described flue gas measuring instrument 5 comprises sampling probe 22, blowback control box 23, filtrator 24, condensation dewatering unit 25, unwatering system 26, accurate filter 27, gas analyzer 28, described sampling probe 22 is connected with described blowback control box 23, described blowback control box 23 is connected with described filtrator 24, described filtrator 24 is connected with described condensation dewatering unit 25, unwatering system 26 respectively, described condensation dewatering unit 25 is connected with described accurate filter 27, and described accurate filter 27 is connected with described gas analyzer 28.
Described gas analyzer 28 is infrared gas analyzer.
Between described sampling probe 22 and described blowback control box 23, be respectively equipped with permanent power heating tape 29 between described blowback control box 23 and described filtrator 24.
Above example of the present invention is had been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to for limiting practical range of the present invention.All equalization variations of doing according to the present patent application scope and improvement etc., within all should still belonging to patent covering scope of the present invention.
Claims (6)
1. a back flushing type flue gas pollutant real time on-line monitoring system, it is characterized in that comprising that monitoring smoke dust subsystem, Gas Parameters measurement subsystem, gaseous contaminant are analyzed monitoring subsystem, data acquisition control is processed output subsystem, described monitoring smoke dust subsystem, Gas Parameters measurement subsystem, gaseous contaminant are analyzed monitoring subsystem and are connected with described data acquisition control processing output subsystem respectively;
In described monitoring smoke dust subsystem, be provided with flue gas measuring instrument;
The moisture tester that is provided with flue gas flow rate transmitter and the flow velocity tester being connected with flue gas flow rate transmitter, flue-gas temperature transmitter and the temperature measuring device being connected with flue-gas temperature transmitter, flue gas pressures transmitter and the pressure tester being connected with flue gas pressures transmitter, smoke moisture transmitter in described Gas Parameters measurement subsystem and is connected with smoke moisture transmitter;
In described data acquisition control processing output subsystem, be provided with data acquisition unit and system control interface, remote communication interface, AO/DO interface, system control treating apparatus, output device, described remote communication interface, described AO/DO interface are controlled treating apparatus with described system respectively and are connected, and described system control device is connected with described output device;
Described gaseous contaminant is analyzed monitoring subsystem and is comprised flue gas gaseous contaminant sampling probe, flue gas pretreatment system, gaseous contaminant analyser, described flue gas gaseous contaminant sampling probe is connected with described flue gas pretreatment system, described flue gas pretreatment system is connected with described gaseous contaminant analyser, and described gaseous contaminant analyser is connected with system control interface with described data acquisition unit.
2. back flushing type flue gas pollutant real time on-line monitoring system according to claim 1, is characterized in that described flow velocity tester, temperature measuring device, pressure tester, moisture tester are connected with system control interface with described data acquisition unit respectively.
3. back flushing type flue gas pollutant real time on-line monitoring system according to claim 1, is characterized in that described gaseous contaminant analyser comprises a wet separator and two electronic coolers.
4. back flushing type flue gas pollutant real time on-line monitoring system according to claim 1, it is characterized in that described flue gas measuring instrument comprises sampling probe, blowback control box, filtrator, precise cold condenser, unwatering system, accurate filter, gas analyzer, described sampling probe is connected with described blowback control box, described blowback control box is connected with described filtrator, described filtrator is connected with described condensation dewatering unit, draining cylinder respectively, described condensation dewatering unit is connected with described accurate filter, and described accurate filter is connected with described gas analyzer.
5. back flushing type flue gas pollutant real time on-line monitoring system according to claim 4, is characterized in that described gas analyzer is infrared gas analyzer.
6. back flushing type flue gas pollutant real time on-line monitoring system according to claim 4, is characterized in that between described sampling probe and described blowback control box, is respectively equipped with permanent power heating tape between described blowback control box and described filtrator.
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| CN201310692337.9A CN103645127A (en) | 2013-12-12 | 2013-12-12 | Back flushing type real-time online monitoring system for smoke pollutants |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075970A (en) * | 2014-07-18 | 2014-10-01 | 北京汇众翔科技有限公司 | Dust continuous on-line monitoring system with automatic sweeping function |
| CN104089930A (en) * | 2014-07-30 | 2014-10-08 | 武汉菲舍控制技术有限公司 | Laser backscattering type smoke-dust monitoring system |
| CN104297426A (en) * | 2014-09-28 | 2015-01-21 | 佛山高富中石油燃料沥青有限责任公司 | Method for measuring asphalt flue gas |
| CN105865853A (en) * | 2016-05-16 | 2016-08-17 | 威海捷诺曼自动化科技有限公司 | Online analysis system of ship exhaust emission |
| CN106840264A (en) * | 2017-02-21 | 2017-06-13 | 上海宝英光电科技有限公司 | A kind of continuous on-line monitoring system of flue gas |
| CN107132318A (en) * | 2017-06-16 | 2017-09-05 | 合肥固泰自动化有限公司 | A kind of stationary source VOC on-line monitoring systems |
| CN107202751A (en) * | 2017-05-19 | 2017-09-26 | 亿信标准认证集团有限公司 | Flue gas concentration automatic detection Verification System in air |
| CN110006709A (en) * | 2019-03-07 | 2019-07-12 | 北京雪迪龙科技股份有限公司 | A kind of dioxin automatic continuous sampling system |
| CN111879358A (en) * | 2020-07-14 | 2020-11-03 | 江苏云聚汇科技有限公司 | Remote quality control monitoring platform for online monitoring of flue gas |
| CN111896050A (en) * | 2020-07-14 | 2020-11-06 | 江苏云聚汇科技有限公司 | Flue gas online monitoring control system and control method thereof |
| CN114593767A (en) * | 2022-02-28 | 2022-06-07 | 龙南骏亚电子科技有限公司 | Control system and device for PCB workshop environment quality |
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- 2013-12-12 CN CN201310692337.9A patent/CN103645127A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075970A (en) * | 2014-07-18 | 2014-10-01 | 北京汇众翔科技有限公司 | Dust continuous on-line monitoring system with automatic sweeping function |
| CN104089930A (en) * | 2014-07-30 | 2014-10-08 | 武汉菲舍控制技术有限公司 | Laser backscattering type smoke-dust monitoring system |
| CN104297426A (en) * | 2014-09-28 | 2015-01-21 | 佛山高富中石油燃料沥青有限责任公司 | Method for measuring asphalt flue gas |
| CN104297426B (en) * | 2014-09-28 | 2016-07-06 | 佛山高富中石油燃料沥青有限责任公司 | A kind of bitumen flue gas assay method |
| CN105865853A (en) * | 2016-05-16 | 2016-08-17 | 威海捷诺曼自动化科技有限公司 | Online analysis system of ship exhaust emission |
| CN106840264A (en) * | 2017-02-21 | 2017-06-13 | 上海宝英光电科技有限公司 | A kind of continuous on-line monitoring system of flue gas |
| CN107202751A (en) * | 2017-05-19 | 2017-09-26 | 亿信标准认证集团有限公司 | Flue gas concentration automatic detection Verification System in air |
| CN107132318A (en) * | 2017-06-16 | 2017-09-05 | 合肥固泰自动化有限公司 | A kind of stationary source VOC on-line monitoring systems |
| CN110006709A (en) * | 2019-03-07 | 2019-07-12 | 北京雪迪龙科技股份有限公司 | A kind of dioxin automatic continuous sampling system |
| CN110006709B (en) * | 2019-03-07 | 2021-08-10 | 北京雪迪龙科技股份有限公司 | Automatic continuous sampling system for dioxins |
| CN111879358A (en) * | 2020-07-14 | 2020-11-03 | 江苏云聚汇科技有限公司 | Remote quality control monitoring platform for online monitoring of flue gas |
| CN111896050A (en) * | 2020-07-14 | 2020-11-06 | 江苏云聚汇科技有限公司 | Flue gas online monitoring control system and control method thereof |
| CN111896050B (en) * | 2020-07-14 | 2021-04-06 | 江苏云聚汇科技有限公司 | Type limiting method of smoke measuring instrument |
| CN114593767A (en) * | 2022-02-28 | 2022-06-07 | 龙南骏亚电子科技有限公司 | Control system and device for PCB workshop environment quality |
| CN114593767B (en) * | 2022-02-28 | 2023-09-01 | 龙南骏亚精密电路有限公司 | Control system and device for environmental quality of PCB workshop |
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Application publication date: 20140319 |