CN202886277U - Calibration device for continuous monitoring system for flue gas emissions of stationary pollution source - Google Patents
Calibration device for continuous monitoring system for flue gas emissions of stationary pollution source Download PDFInfo
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- CN202886277U CN202886277U CN 201220622762 CN201220622762U CN202886277U CN 202886277 U CN202886277 U CN 202886277U CN 201220622762 CN201220622762 CN 201220622762 CN 201220622762 U CN201220622762 U CN 201220622762U CN 202886277 U CN202886277 U CN 202886277U
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Abstract
The utility model discloses a calibration device, and particularly discloses a calibration device for a continuous monitoring system for flue gas emissions of a stationary pollution source. The calibration device comprises a shell, a gas distribution system and an infrared gas analysis system are arranged in the shell, the gas distribution system comprises a diluent gas bottle, a standard gas bottle, a diluent gas delivery channel, a standard gas delivery channel and a gas mixing chamber, the infrared gas analysis system comprises a gas inlet, a sulfur dioxide detection chamber, a nitrogen oxide detection chamber, an oxygen sensor and a gas outlet which are sequentially communicated through pipelines, the gas distribution system and the infrared gas analysis system are connected through a three-way interface, and another outlet of the three-way interface is communicated with the monitoring system for the flue gas emissions of the stationary pollution source. The calibration device disclosed by the utility model can improve field operating efficiency, and is high in practicability and intelligence degree.
Description
Technical field
The utility model relates to a kind of calibrating installation of flue gas detecting system, particularly relates to a kind of fixed pollution source smoke discharge continuous monitor system calibrating installation.
Background technology
The fixed pollution source smoke discharge continuous monitor system is for the SO to discharge of pollutant sources flue gases such as metallurgy, chemical industry, Industrial Boiler, boiler of power plant, Industrial Stoves
2, NO
XCarry out continuous monitoring etc. pollutant levels, and automatically record gross contamination emission and drain time, Monitoring Data can be transferred to the pollution source monitoring network system of environmental protection administrative authority, implementing monitoring airborne release total amount of pollutants discharge by modes such as wireless telecommunications.
China's environmental problem has the characteristic of " common but unique ".The environmental problem that occurs stage by stage in the century-old course of industrialization in the developed country is concentrated to occur in the fast development that China reformed and opened up to the outside world more than 30 year, presents structural, compressibility, compositeness, regionality and global five large essential characteristics.Along with the quickening of China's industrialization, urbanization and new countryside construction process, the contradiction of socio-economic development and resource environment constraint more and more displays, and the environment situation is very severe, and environmental pressure continues to strengthen.The 17th Session of the General Assembly of party clearly proposes, and the depletion of resources and environmental degradation of Economic Growth in China is excessive, if things go on like this, resource is with hard to carry on, environment will can't bear the heavy load, and it is imperative to change traditional development model and the style of economic increase, and one of them Important Action is implemented the energy-saving and emission-reduction strategy exactly.Since the Eleventh Five-Year Plan; efforts at environmental protection adhere to pushing forward comprehensively key breakthrough; the most important thing of prevention and cure of pollution as environmental protection; guaranteeing that masses' safe drinking water is as top priority; major pollutants are reduced discharging as central task; atmospheric pollution is because mankind's activity and natural process cause certain material gets involved in atmosphere, presents enough concentration, has reached time enough, and therefore endangered comfortable, the health and wellbeing of human body or endangered environment.Atmosphere pollution is according to existing form can be divided into two large classes: aerosol state pollutant and gaseous state pollutant.Gasoloid refers to the negligible solids of settling velocity, liquid particle or solid and the suspended matter of liquid particle in gas medium, such as dust, flue dust, mist etc.The gaseous state pollutant refers to oxysulfide, oxides of nitrogen, oxycarbide, hydrocarbon etc.Atmospheric pollution has very large impact to health.In order to reduce in the atmosphere pollutant to the infringement of human body, especially Atmospheric Grains, sulphuric dioxide, oxides of nitrogen are to the infringement of human body, and country has adopted " chimney stack diffusion " principle to reduce the infringement to human body.Adopt high chimney emission, atmosphere pollution is spread to wider scope in the high-altitude, to reduce the concentration of ground pollution thing.Chimney is higher, and the concentration of ground pollution thing is lower.In order to reduce stationary pollution source pollution emission reduction index, state compulsion requires the manufacturing enterprises such as iron and steel, electric power, cement, coking and papermaking to install and fix the pollution source online monitoring system, adopt wireless communication technique, upload in real time Monitoring Data, in time grasp the discharge of pollutant sources index, strictly control the each department disposal of pollutants.Thermal Power Generation Industry planning is 3.55 hundred million kilowatts of generator set desulfurizations the Eleventh Five-Year Plan period, and wherein new-built unit is 1.88 hundred million kilowatts, and 1.67 hundred million kilowatts of existing Desulphurization for Coal-fired Power Plant units form 5,900,000 tons of SO altogether
2The reduction ability, the fired power generating unit desulfurization degree can reach 64% in 2010.
At present, the whole nation has formed country, province, city, the 4 grades of Environmental Monitoring Networks in county.More than 4800 of total specialty, industry monitoring stations, more than 2200 monitoring station of environment friendly system wherein, more than 2600 of industry monitoring stations.103 at the air quality monitoring network station of state's control, and the monitoring website more than 100 of other project is individual.Respectively monitor the effective of website monitoring function for standard, China has formulated 410 of all kinds of National Environmental standards, has covered the fields such as atmosphere, water quality, soil, noise, radiation, solid waste, agricultural chemicals.Environmental quality monitoring, environmental quality weekly, daily paper, forecast monitoring have been carried out comprehensively; Pollution Source Monitoring, contamination accident emergency monitoring, total amount of pollutant control monitoring, pollution source are resolved monitoring, environmental pollution improvement's engineering effort monitoring etc.
In view of above-mentioned background, usage behavior for standard fixed pollution source smoke discharge supervisory system, reinforcement is to the science of its legal management, brand-new, efficient, complete calibrating installation is set up in exploration, be the major subjects of current field of measuring techniques, and make every effort to develop the purpose and meaning place of novel calibrating installation.
The utility model content
Fixed pollution source smoke discharge continuous monitor system calibrating installation of the present utility model, overcome the deficiency that prior art exists, providing a kind of makes mass rate control rationally assemble with flue gas analyzer, can not only satisfy existing standard and correlation technique code requirement, and make work efficiency improve the fixed pollution source smoke discharge continuous monitor system calibrating installation that practical, intelligent degree is high.
A kind of fixed pollution source smoke discharge continuous monitor system calibrating installation of the present utility model comprises housing, and gas distributing system and infrared ray gas analysis system are installed in described housing.
Described gas distributing system comprises diluents gas cylinder, calibrating gas gas cylinder, diluents gas distribution channel, calibrating gas gas distribution channel and mixed air vessel, described diluents gas cylinder is communicated with by described diluents gas distribution channel with described mixed air vessel, described calibrating gas gas cylinder is communicated with by described calibrating gas gas distribution channel with described mixed air vessel, be provided with mass flowmeter at described diluents gas distribution channel and calibrating gas gas distribution channel, mixed gas is in described gas distribution channel is delivered to the infrared ray gas analysis system in the described mixed air vessel.
Described infrared ray gas analysis system comprises that air intake opening, sulphuric dioxide detect air chamber, oxides of nitrogen detects air chamber, lambda sensor and gas outlet, and described air intake opening, sulphuric dioxide detect air chamber, oxides of nitrogen detects air chamber, lambda sensor and gas outlet and is communicated with successively by pipeline.
Described gas distributing system, infrared ray gas analysis system connect by three-way interface, and another outlet of described three-way interface is communicated with the fixed pollution source smoke discharge monitoring system.
Be provided with gas pressure reducer at described diluents gas distribution channel and calibrating gas gas distribution channel, described gas pressure reducer is positioned at the upstream of described mass flowmeter.
The flowmeter of flow volume in being provided with for detection of gas distribution channel in described gas distribution channel, the provided upstream of described flowmeter are equipped with the variable valve for the control flow volume, and described variable valve is communicated be used to the split channel that unnecessary gas is discharged.
The pipeline that described air intake opening and described sulphuric dioxide detect between the air chamber is provided with air strainer and dehumidifier.
The pipeline that described sulphuric dioxide detects between air chamber and the described oxides of nitrogen detection air chamber is provided with air strainer and dehumidifier.
Be provided with handle on the described housing.
Compared with prior art the beneficial effects of the utility model are: the utility model is rationally integrated with infrared flue gas analysis with mass rate control, can not only satisfy existing standard and correlation technique code requirement, and compare with traditional operational method have the efficient height, practical, intelligent degree advantages of higher, gas distributing system is on the basis of adopting two-way mass rate mixing method that gas is diluted, introduce mass rate control and carry out the dilution of polycomponent calibrating gas, satisfy the calibration requirements of infrared ray gas analysis system device on-line system.
The flue gas analysis system can measure the concentration of multiple gases simultaneously.According to the behaviour in service of site monitoring system, dispose high and low range, realize simultaneously automatic switching range, satisfy the measuring accuracy demand under the different working conditions.
Description of drawings
Fig. 1 is the front view of the utility model fixed pollution source smoke discharge continuous monitor system calibrating installation.
Fig. 2 is the structural representation of gas distributing system in the utility model fixed pollution source smoke discharge continuous monitor system calibrating installation.
Fig. 3 is the structural representation of the utility model fixed pollution source smoke discharge continuous monitor system calibrating installation middle infrared (Mid-IR) analyser.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Such as Fig. 1-shown in Figure 3, a kind of fixed pollution source smoke discharge continuous monitor system calibrating installation comprises housing 1, be provided with handle 2 on the housing 1, gas distributing system and infrared ray gas analysis system are installed in housing 1, and it is portable that outward appearance adopts, reach carry, easy to use.
Gas distributing system comprises diluents gas cylinder 3, calibrating gas gas cylinder 13, the diluents gas distribution channel, calibrating gas gas distribution channel and mixed air vessel 6, calibrating gas gas cylinder 13 in-built air or high-purity nitrogens, diluents gas cylinder 13 is communicated with by the diluents gas distribution channel with mixed air vessel 6, calibrating gas gas cylinder 13 is communicated with by the calibrating gas gas distribution channel with mixed air vessel 6, be provided with mass flowmeter 5 at diluents gas distribution channel and calibrating gas gas distribution channel, be provided with gas pressure reducer 4 at diluents gas distribution channel and calibrating gas gas distribution channel, gas pressure reducer 4 is positioned at the upstream of mass flowmeter 5, gas pressure reducer 4 prevents that mass flowmeter 5 from damaging, mixed air vessel's 6 interior mixed gases are in gas distribution channel is delivered to the infrared ray gas analysis system, in gas distribution channel, be provided with the flowmeter 8 for detection of flow volume in the gas distribution channel, the provided upstream of flowmeter 8 is equipped with the variable valve 7 for the control flow volume, and variable valve 7 is communicated be used to the split channel that unnecessary gas is discharged.
The infrared ray gas analysis system comprises that air intake opening, sulphuric dioxide detect air chamber 10, oxides of nitrogen detects air chamber 11, lambda sensor 12 and gas outlet, and air intake opening, sulphuric dioxide detect air chamber 10, oxides of nitrogen detects air chamber 11, lambda sensor 12 and gas outlet and is communicated with successively by pipeline; The pipeline that air intake opening and sulphuric dioxide detect between the air chamber 10 is provided with air strainer 9 and dehumidifier, the pipeline that sulphuric dioxide detects between air chamber 10 and the oxides of nitrogen detection air chamber 11 is provided with air strainer 9 and dehumidifier, granular pattern impurity in air strainer 9 effective filtering gas etc., dehumidifier is effectively removed the moisture in the pipeline, and air strainer 9 is the polymeric membrane filtrator.
Gas distributing system, infrared ray gas analysis system connect by three-way interface, another outlet of three-way interface is communicated with the fixed pollution source smoke discharge monitoring system, automatic electromagnetic valve switches arbitrarily, and the design of gas circuit rational deployment can be avoided the cross pollution of gas between the system.
Adopt high precision mass flowmeter 5(MFC), according to proportioning desired concn ratio.The calibrating gas material of convection current path quality flowmeter 5 and air or high-purity nitrogen carry out the control of mass rate ratio, simultaneously, gas after the proportioning are diluted mixing, finally obtain required matched proportion density gas.
The principle of work of mass flowmeter 5 is: mass flowmeter 5 adopts laminar flow differential pressure type principle, be provided with several very thin laminar flow plates at circulation path, according to pool Xiao Ye theorem, because the viscosity of medium makes air flow inlet place and exit produce certain differential pressure, and accurately measure temperature, absolute pressure and the differential pressure of air-flow with accurate sensor, calculate thus the flow of medium.
The utility model embodiment infrared ray gas analysis system adopts the non-disperse infrared spectrum technology, and gas composition is carried out quantitative test, the non-disperse infrared spectrum commercial measurement be molecule absorption to infrared spectrum in the specific region, utilize SO
2Infrared light, the NO that absorbs 7.3 μ m absorb the infrared light of 5.3 μ m, with NO
2Be reduced into principle and the method for measuring again NO behind the NO, obtain respectively SO
2, NO and NO
2Concentration, utilize the photometer of this technical design not disperse the light of scanning optical spectrum, this non-dispersive system goes up measurement gas to Optical Absorption with band-Tong light filter at " band ".
Sulphuric dioxide detects air chamber 10 or oxides of nitrogen detection air chamber 11 structures are identical, the light source that an emission infrared ray is arranged, the infrared ray that light source sends is by two identical chambers and arrive detecting device, first chamber is to be full of the not reference air chamber of the inert gas of wavelength light that absorbing apparatus uses, second measurement air chamber that the chamber is the analytical gas sample, measure the gas absorption part infrared ray in the air chamber, infrared ray is absorbed rear energy to be weakened and arrives detecting device, pass through the energy difference behind two air chambers with detecting device, detection infrared ray, determine the concentration of gas.
Light is by reference and measure the ratio that air chamber obtains the detection signal of light, and namely transmittance is relevant with the concentration of contaminants in gas, and expression formula is as follows:
In the formula: Tr-light is transmittance by the ratio that reference and measurement air chamber obtain the detection signal of light;
I
0-light is by the intensity behind the reference air chamber;
I-light passes through the intensity behind the measurement air chamber;
α (λ)-molecule absorption rate (relevant with wavelength X);
C-pollutant levels;
L-light is by the length (equal in length of two air chambers) of reference air chamber or measurement air chamber.
In the reference air chamber, c reference=0 can obtain I easily
0Value, because:
I
0For keeping constant, I
SampleRelevant with the concentration of the transmittance that records and determined gas.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (6)
1. a fixed pollution source smoke discharge continuous monitor system calibrating installation is characterized in that: comprise housing, gas distributing system and infrared ray gas analysis system are installed in described housing;
Described gas distributing system comprises diluents gas cylinder, calibrating gas gas cylinder, diluents gas distribution channel, calibrating gas gas distribution channel and mixed air vessel, described diluents gas cylinder is communicated with by described diluents gas distribution channel with described mixed air vessel, described calibrating gas gas cylinder is communicated with by described calibrating gas gas distribution channel with described mixed air vessel, be provided with mass flowmeter at described diluents gas distribution channel and calibrating gas gas distribution channel, mixed gas is in gas distribution channel is delivered to the infrared ray gas analysis system in the described mixed air vessel;
Described infrared ray gas analysis system comprises that air intake opening, sulphuric dioxide detect air chamber, oxides of nitrogen detects air chamber, lambda sensor and gas outlet, and described air intake opening, sulphuric dioxide detect air chamber, oxides of nitrogen detects air chamber, lambda sensor and gas outlet and is communicated with successively by pipeline;
Described gas distributing system is connected by three-way interface with the infrared ray gas analysis system, and another outlet of described three-way interface is communicated with the fixed pollution source smoke discharge monitoring system.
2. fixed pollution source smoke discharge continuous monitor system calibrating installation as claimed in claim 1, it is characterized in that: be provided with gas pressure reducer at described diluents gas distribution channel and calibrating gas gas distribution channel, described gas pressure reducer is positioned at the upstream of described mass flowmeter.
3. fixed pollution source smoke discharge continuous monitor system calibrating installation as claimed in claim 1, it is characterized in that: the flowmeter of flow volume in described gas distribution channel, being provided with for detection of gas distribution channel, the provided upstream of described flowmeter is equipped with the variable valve for the control flow volume, and described variable valve is communicated be used to the split channel that unnecessary gas is discharged.
4. fixed pollution source smoke discharge continuous monitor system calibrating installation as claimed in claim 1 is characterized in that: the pipeline that described air intake opening and described sulphuric dioxide detect between the air chamber is provided with air strainer and dehumidifier.
5. fixed pollution source smoke discharge continuous monitor system calibrating installation as claimed in claim 1 is characterized in that: described sulphuric dioxide detects air chamber and is provided with air strainer and dehumidifier with pipeline between the described oxides of nitrogen detection air chamber.
6. fixed pollution source smoke discharge continuous monitor system calibrating installation as claimed in claim 1 is characterized in that: be provided with handle on the described housing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220622762 CN202886277U (en) | 2012-11-22 | 2012-11-22 | Calibration device for continuous monitoring system for flue gas emissions of stationary pollution source |
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| CN 201220622762 CN202886277U (en) | 2012-11-22 | 2012-11-22 | Calibration device for continuous monitoring system for flue gas emissions of stationary pollution source |
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Cited By (9)
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| CN103543121A (en) * | 2013-10-11 | 2014-01-29 | 皖江新兴产业技术发展中心 | Device and method for on-line calibration on high-temperature flue gas infrared spectrum measurement system |
| CN103884718A (en) * | 2014-04-16 | 2014-06-25 | 中国石油化工股份有限公司 | Testing device for detecting optical gas imaging equipment |
| CN107884515A (en) * | 2017-11-20 | 2018-04-06 | 华电电力科学研究院 | A kind of carbon emission on-line detecting system and detection method |
| CN108426848A (en) * | 2017-12-04 | 2018-08-21 | 河南省计量科学研究院 | The dilution error detection device and its detection method of calibrating gas dilution device based on infra-red gas analyzer |
| CN109323717A (en) * | 2018-11-20 | 2019-02-12 | 天津智易时代科技发展有限公司 | A kind of portable gas dynamic calibration instrument |
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| CN110031421A (en) * | 2019-04-22 | 2019-07-19 | 南京信大气象科学技术研究院有限公司 | A kind of atmospheric carbon dioxide sky probing measurer |
| CN110554145A (en) * | 2019-09-03 | 2019-12-10 | 北京雪迪龙科技股份有限公司 | device and method for remotely detecting and calibrating automatic flue gas monitoring system |
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- 2012-11-22 CN CN 201220622762 patent/CN202886277U/en not_active Expired - Lifetime
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| CN103543121B (en) * | 2013-10-11 | 2016-02-24 | 皖江新兴产业技术发展中心 | A kind of high-temperature flue gas infrared spectra measuring system on-line calibration apparatus and method |
| CN103543121A (en) * | 2013-10-11 | 2014-01-29 | 皖江新兴产业技术发展中心 | Device and method for on-line calibration on high-temperature flue gas infrared spectrum measurement system |
| CN103884718A (en) * | 2014-04-16 | 2014-06-25 | 中国石油化工股份有限公司 | Testing device for detecting optical gas imaging equipment |
| CN103884718B (en) * | 2014-04-16 | 2017-12-01 | 中国石油化工股份有限公司 | A kind of experimental rig for being used to detect optics gas imaging equipment |
| CN107884515A (en) * | 2017-11-20 | 2018-04-06 | 华电电力科学研究院 | A kind of carbon emission on-line detecting system and detection method |
| CN108426848B (en) * | 2017-12-04 | 2024-05-31 | 河南省计量测试科学研究院 | Dilution error detection device and method of standard gas dilution device based on infrared gas analyzer |
| CN108426848A (en) * | 2017-12-04 | 2018-08-21 | 河南省计量科学研究院 | The dilution error detection device and its detection method of calibrating gas dilution device based on infra-red gas analyzer |
| CN109323717A (en) * | 2018-11-20 | 2019-02-12 | 天津智易时代科技发展有限公司 | A kind of portable gas dynamic calibration instrument |
| CN109585885A (en) * | 2018-12-14 | 2019-04-05 | 中国汽车技术研究中心有限公司 | A kind of fuel cell automobile hydrogen ann test variable-volume concentration hydrogen gas generation system |
| CN110031421A (en) * | 2019-04-22 | 2019-07-19 | 南京信大气象科学技术研究院有限公司 | A kind of atmospheric carbon dioxide sky probing measurer |
| CN110031421B (en) * | 2019-04-22 | 2021-07-20 | 南京信大气象科学技术研究院有限公司 | Atmosphere carbon dioxide high altitude detection instrument |
| CN110554145A (en) * | 2019-09-03 | 2019-12-10 | 北京雪迪龙科技股份有限公司 | device and method for remotely detecting and calibrating automatic flue gas monitoring system |
| CN117890166A (en) * | 2024-03-14 | 2024-04-16 | 山西泰瑞祥科技有限公司 | Air pollution monitoring device |
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Granted publication date: 20130417 |