CN206057142U - A kind of super low concentration wet flue gas flue dust on-line measurement device - Google Patents
A kind of super low concentration wet flue gas flue dust on-line measurement device Download PDFInfo
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- CN206057142U CN206057142U CN201620936406.5U CN201620936406U CN206057142U CN 206057142 U CN206057142 U CN 206057142U CN 201620936406 U CN201620936406 U CN 201620936406U CN 206057142 U CN206057142 U CN 206057142U
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- sampling
- flue gas
- low concentration
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- line measurement
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000003546 flue gas Substances 0.000 title claims abstract description 35
- 238000005259 measurement Methods 0.000 title claims abstract description 33
- 239000003500 flue dust Substances 0.000 title claims abstract description 27
- 238000005070 sampling Methods 0.000 claims abstract description 66
- 239000007788 liquid Substances 0.000 claims abstract description 51
- 238000000149 argon plasma sintering Methods 0.000 claims abstract description 17
- 238000004458 analytical method Methods 0.000 claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 19
- 238000010408 sweeping Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract description 15
- 238000012544 monitoring process Methods 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000003245 coal Substances 0.000 abstract description 3
- 239000000523 sample Substances 0.000 description 26
- 239000000428 dust Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 14
- 235000019504 cigarettes Nutrition 0.000 description 5
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 230000005250 beta ray Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 238000007865 diluting Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000004848 nephelometry Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003189 isokinetic effect Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000790 scattering method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
This utility model belongs to coal steam-electric plant smoke monitoring technical field, and in particular to a kind of super low concentration wet flue gas flue dust on-line measurement device.Technical scheme is:Including three groups of sampling heads for being provided with thieff hatch, three groups of sampling tubes, condenser, liquid trap, liquid collecting component analyses instrument, reservoir, positive displacement pump, heat tracing pipe, light scattering analyzer, sampling pump, controller, pitot tube tachymeter, temperature sensor, flow control valve, effusion meter, pressure gauge, electromagnetic valves;This utility model realizes the on-line measurement of the super low concentration wet flue gas flue dust after minimum discharge suitable for thermal power plant.With not, by the interference such as smoke moisture, temperature, source of error is little, the advantages of measurement accuracy is high.
Description
Technical field
This utility model belongs to coal steam-electric plant smoke monitoring technical field, and in particular to a kind of super low concentration wet flue gas flue dust exists
Line measurement apparatus.
Background technology
Atmospheric pollution was increasingly serious in recent years, and haze phenomenon happens occasionally, and pollution of the dust to air is increasingly subject to people
Concern.Flue dust in thermal power plant's smoke evacuation is needed to its strict control as the important sources of dust.For this purpose, State Council's print
Send out《Prevention and control of air pollution action plan》(promulgated by the State Council (2013) 37), it is desirable to which the upgrading for accelerating the existing dust removal installation of coal-burning boiler changes
Make, it is ensured that granular material discharged to be up to state standards.National Development and Reform Committee, Bureau of Energy, Chinese Ministry of Environmental Protection combine and print and distribute《Coal electricity energy-saving and emission-reduction liter
Level and transformation action plan》([2014] No. 2093), it is indicated that the flue dust in the year two thousand twenty active service Thermal generation unit atmosphere pollution
Emission limit will be less than 10mg/Nm3.For response, country calls, and each province and city have successively carried out minimum discharge transformation to thermal power plant.Change
After making, dust concentration is generally less than 10mg/Nm3, part thermal power plant is even below 5mg/Nm3。
With environmental protection standard it is more and more stricter, the requirement more and more higher to monitoring smoke dust equipment.At present both at home and abroad to granule
The monitoring of thing concentration mainly has following two big class method:First, traditional flue dust line Measurement Technique;2nd, low concentration flue dust is surveyed online
Amount technology.Traditional flue dust line Measurement Technique is mainly nephelometry, and which is affected greatly by drop in flue gas, and maximum error exists
50mg/Nm3More than;Normal measurement range>50mg/Nm3, greatly, sensitivity is low for its range;Diminishing with dust size reduces with concentration,
Its certainty of measurement is decreased obviously.Due to the disadvantage mentioned above of nephelometry, it is online that it far can not meet the ultralow dust concentration of wet flue gas
The technical requirements of measurement.Low concentration flue dust line Measurement Technique mainly includes charge probe method, β ray methods and laser forward scattering
Method.AC probe method must be corrected after mounting, and workload is big, and program is complicated;For DC probe method, temperature, humidity
Change and flue dust to pop one's head in adhesion all have considerable influence to certainty of measurement.Therefore, the dust concentration in wet flue gas is surveyed online
Charge probe method is adopted in amount seldom.As β ray methods data delay is big, is not suitable for process monitoring, quasi real time can only survey at last
Amount technology, and its measurement range is 0~30mg/Nm3, so β ray methods are not suitable for 10mg/Nm3Following ultralow dust concentration
On-line measurement.For laser Forward scattering, sampling amount is less, to avoid droplets from the interference to measuring, typically all adopts introducing
The method of dilution wind is heated, and introduction volume is more than the several times of sample gas, and for 10mg/Nm3Following ultralow flue dust
Concentration, dilution will certainly cause larger error to measurement, furthermore dilute the accuracy that the quality of wind can also affect to measure.In face
To during the monitoring of super low concentration flue dust, above method all more or less unsuitable for.
In the face of huge environmental protection pressure, the emission limit of flue dust is more and more lower, and this proposes higher to monitoring smoke dust equipment
Requirement.In view of the deficiency of any of the above monitoring method, needs the prison for being adapted to super low concentration flue dust under a kind of existing situation of exploitation badly
Survey technology.
Utility model content
The purpose of this utility model is deposited in monitoring super low concentration wet flue gas flue dust for above-mentioned existing monitoring device
Disturbed by smoke moisture, temperature etc., source of error is big, the problems such as affect the accuracy of measurement, there is provided a kind of to be applied to fire
Power plant realizes the super low concentration wet flue gas flue dust on-line measurement device after minimum discharge.
For achieving the above object, the technical scheme adopted by this utility model is:A kind of super low concentration wet flue gas flue dust exists
Line measurement apparatus, which includes that three groups are provided with the sampling head of thieff hatch, three groups of sampling tubes, condenser, liquid trap, liquid collecting component analyses
Instrument, reservoir, positive displacement pump, heat tracing pipe, light scattering analyzer, sampling pump, controller, pitot tube tachymeter, temperature sensor, stream
Control valve, effusion meter, pressure gauge, electromagnetic valve;The sampling head is fixed in flue from the horizontal by certain angle;It is described
One end of three groups of sampling tubes is connected with three groups of sampling heads respectively, and the other end and the condenser of three groups of sampling tubes pass through condenser
Three sample gas inlets be connected;The liquid trap is arranged on the lower section of condenser, and communicates with condenser;The reservoir position
In the lower section of liquid trap and the outlet of liquid trap is connected with the entrance of reservoir, the entrance of the positive displacement pump and the outlet of reservoir
Connection;The liquid collecting component analyses instrument is located at the side of liquid trap, and is connected with liquid trap by connecting tube;The electromagnetic valve peace
It is mounted between liquid trap and reservoir, and positioned at the lower section of liquid collecting component analyses instrument;One end of the heat tracing pipe and condenser
The outlet of sample gas is connected, and the other end is connected with light scattering analyzer, and the sampling pump is connected with light scattering analyzer by connecting tube;
The test lead of pitot tube tachymeter is placed in flue by sample tap with the induction end of temperature sensor, and the pitot tube is surveyed
Fast instrument is connected with the terminals of controller by electric wire respectively with the other end of temperature sensor;The liquid collecting component analyses instrument,
Light scattering analyzer is connected with controller by electric wire;Flow is respectively mounted successively from left to right on three groups of sampling tubes
Meter, pressure gauge, temperature sensor, flow control valve;Also respectively one is arranged respectively with outlet in the sample gas inlet of the heat tracing pipe
Temperature sensor;Also an effusion meter is respectively arranged in the entrance of the heat tracing pipe and sampling pump.
Further preferred embodiment, the sampling head adopt flute type cast formula, point three groups of arrangements, and 3 thief holes, shape are opened per group
Into multidraw.
The thieff hatch of the sampling head is just to flue gas direction of flow.
The sampling head is provided with automatic back blow sweeping device with sampling tube.
The sampling tube is from the horizontal by 2 °~5 ° inclination angles.
The flow of the sampling pump is not less than 100Nm3/h。
This utility model compared with prior art, with advantages below and beneficial effect:
Firstth, sampling head adopts flute type form of tubes, point three groups of arrangements, realizes multi-point sampling, can truly reflect whole cigarette
The smoke distribution situation in road section, it is to avoid the measurement error that single-point sampling is caused because of velocity field, distribution of concentration inequality.
Secondth, in this utility model, sample gas is first passed through condenser and is delivered droplets on and condensed with saturated vapor, then Jing
Cross heat tracing pipe to be heated, wet process is carried out to wet flue gas farthest, smoke moisture, temperature and cigarette can be avoided
The interference that droplet is measured to light scattering analyzer in gas.
3rd, in this utility model, sample gas successively passes through condensation flue gas measuring unit and dry flue gas optical measurement unit,
Dust concentration point two parts are measured, the smoke content analyzed in saturated steam and droplet that can be quantitative and dry cigarette
Smoke content in gas, so as to deeper into research flue dust distribution situation.
4th, majority laser Forward scattering can all introduce dilution wind at present, because diluting effect makes dust concentration further
Reduce, and when diluting wind quality variation, all can bring larger error to measurement result, and the dry flue gas light in this utility model
Measuring unit is learned without the need for introducing dilution wind, can be avoided because diluting the measurement error that wind brings, while.This utility model is using more
Point sampling, the measurement error that velocity field, distribution of concentration inequality can be avoided to cause.
5th, this utility model sample flow is big, and flow is in 2m3/ min or so, increased the stability of sampling, can keep away
Exempt from sampling deviation and the too little error brought of sample flow.
In a word, this utility model has not by the interference such as smoke moisture, temperature, and source of error is few, measures accurately advantage.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of sampling head in this utility model.
Fig. 3 is the backflow structure schematic diagram of sampling tube in this utility model.
Specific embodiment
As shown in Figure 1 to Figure 3, a kind of super low concentration wet flue gas flue dust on-line measurement device of the present embodiment, which includes three groups
It is provided with 1, three groups of sampling tubes 2 of sampling head of thieff hatch 18, condenser 3, liquid trap 4, liquid collecting component analyses instrument 5, reservoir 6, row
Liquid pump 7, heat tracing pipe 8, light scattering analyzer 9, sampling pump 10, controller 11, pitot tube tachymeter 12, temperature sensor 13, stream
Control valve 14, effusion meter 15, pressure gauge 16, electromagnetic valve 17;The sampling head 1 is fixed on cigarette from the horizontal by certain angle
In road 19;One end of three groups of sampling tubes 2 is connected with three groups of sampling heads 1 respectively, the other end of three groups of sampling tubes 2 with it is cold
Condenser 3 is connected by the three of condenser sample gas inlets;The liquid trap 4 is arranged on the lower section of condenser 3, and and condenser
3 communicate;The outlet of lower section and liquid trap 4 that the reservoir 6 is located at liquid trap 4 is connected with the entrance of reservoir 6, the discharge opeing
The entrance of pump 7 is connected with the outlet of reservoir 6;To realize the real-time measurement to liquid collecting smoke content, the liquid collecting component analyses
Instrument 5 is located at the side of liquid trap 4, and is connected with liquid trap 4 by connecting tube;To realize the collection of liquid collecting with discharge, the electricity
Magnet valve 22 is arranged between liquid trap 4 and reservoir 6, and positioned at the lower section of liquid collecting component analyses instrument 5;The one of the heat tracing pipe 8
Hold and be connected with the outlet of the sample gas of condenser 3, the other end is connected with light scattering analyzer 9, the sampling pump 10 pass through connecting tube and
Light scattering analyzer 9 connects;The test lead of the pitot tube tachymeter 12 passes through sample tap with the induction end of temperature sensor 13
It is placed in flue 19, the pitot tube tachymeter 12 passes through electric wire with controller 11 respectively with the other end of temperature sensor 13
Terminals connect;The liquid collecting component analyses instrument 5, light scattering analyzer 9 is connected with controller 11 by electric wire;At described three groups
Effusion meter 15, pressure gauge 16, temperature sensor 13, flow control valve 14 are respectively mounted on sampling tube 2 successively from left to right;Institute
The sample gas inlet and outlet for stating heat tracing pipe 8 also respectively arranges a temperature sensor 13 respectively, to monitor the condensation of sample gas and to add
Thermal effect;Also an effusion meter 15 is respectively arranged in the entrance of the heat tracing pipe 8 and sampling pump 10, for monitoring along sample air-flow to stream
The situation of change of amount.Pressure gauge 16 is used for the pressure for monitoring former flue gas.
By the test data for monitoring effusion meter 15 described in the present embodiment, carry out with the real time data of pitot tube tachymeter 12
Compare, adjust flow control valve 14 and can realize isokinetic sampling.The light scattering analyzer 9 need not be passed through carrier gas, directly right
Sample gas from heat tracing pipe 8 is analyzed.
Sampling head 1 described in the present embodiment adopts flute type cast formula, point three groups of arrangements, and 3 thief holes are opened per group, is formed many
Point sampling.The smoke distribution situation of whole flue cross section can truly be reflected, it is to avoid single-point is sampled because of velocity field, distribution of concentration
The measurement error that inequality is caused.
The thieff hatch 18 of sampling head 1 described in the present embodiment is just to flue gas direction of flow.
Sampling head 1 described in the present embodiment is provided with automatic back blow sweeping device 20 with sampling tube 2.
When the sampling head 1,2 blowback of sampling tube are swept, sampling pump 10 is first closed down, turn off flow control valve 14, opened certainly
Dynamic blowback sweeping device 20 is purged.It is to be purged to finish, automatic back blow sweeping device 20 is first closed down, and flow control valve 14 is adjusted to conjunction
Suitable aperture, finally restarts sampling pump 10.
In order to measure more precisely, the droplet in sample gas is made to enter condenser 3, the sampling tube 2 from sampling tube 2 is smooth
From the horizontal by 2 °~5 ° inclination angles.
In order to increase the stability of sampling, it is to avoid because of the too little error brought of sampling deviation and sample flow, the sampling
The flow of pump 10 is not less than 100Nm3/h。
The course of work of the present embodiment is as follows:
Measurement apparatus are fixedly mounted as shown in Figure 1, starts sampling pump 10, regulation flow control valve 14 carries out constant speed and adopts
Sample, sets to the power of condenser 3;Sampled 1, sample air-flow, sampling tube 2 enter condenser 3, the saturation water in sample gas
Steam and droplet condense convergence in condenser 3, and cone section of the condensed fluid being gathered together along 3 bottom of condenser enters collection
Liquid device 4;The electromagnetic valve 17 of 4 bottom of liquid trap sets and switchs once every time t1, in the time t1 that electromagnetic valve 17 is closed, liquid collecting
A certain amount of liquid collecting is collected in device 4, the liquid collecting component analyses instrument 5 for being fixed on 4 side of liquid trap is carried out to the smoke content of liquid collecting
Analysis, draws corresponding dust concentration;When electromagnetic valve 17 is opened, liquid collecting flows downwardly into reservoir 6 along liquid trap 4, now
Start positive displacement pump 7, the liquid collecting in reservoir 6 is drained using positive displacement pump 7, record 6 working time of positive displacement pump t2, can be obtained by t2
Go out to collect liquid measure;Dry flue gas after condensed dehumidifying exports out from 3 bottom-right sample gas of condenser, heats into heat tracing pipe 8,
Further flue gas is dehumidified, final dry flue gas enters light scattering analyzer 9, and the dust concentration in dry flue gas is analyzed;Most
Computing is analyzed to the data of liquid collecting component analyses instrument 5 and light scattering analyzer 9 by controller 11 afterwards, final cigarette is drawn
Dust concentration.
In the measurement process, containing for saturated vapor in former flue gas can be obtained according to temperature and the pressure of former flue gas
Amount, and then analyze the humidity of former flue gas;On this basis, with reference to flue gas flow can analyze saturated vapor be condensed into it is full
With the thermal discharge and the flow of condensed fluid of water, the power of condenser 3 can be preset according to thermal discharge, further according to condensed fluid
Flow can be preset to the rotating speed of electromagnetic valve 17 switch time t1 and positive displacement pump 7;Finally liquid collecting in condensation measuring unit
Dustiness and optical measurement unit in the dustiness of dry flue gas be overlapped computing, obtain final actual dust concentration.
Claims (6)
1. a kind of super low concentration wet flue gas flue dust on-line measurement device, it is characterised in that:Thieff hatch (18) is provided with including three groups
Sampling head (1), three groups of sampling tubes (2), condenser (3), liquid trap (4), liquid collecting component analyses instrument (5), reservoir (6), discharge opeings
Pump (7), heat tracing pipe (8), light scattering analyzer (9), sampling pump (10), controller (11), pitot tube tachymeter (12), temperature are passed
Sensor (13), flow control valve (14), effusion meter (15), pressure gauge (16), electromagnetic valve (17);The sampling head (1) and level
Direction is angled to be fixed in flue (19);One end of three groups of sampling tubes (2) is respectively with three groups of sampling heads (1) even
Connect, the other end of three groups of sampling tubes (2) is connected by the three of condenser sample gas inlets with condenser (3);The collection
Liquid device (4) is arranged on the lower section of condenser (3), and communicates with condenser (3);The reservoir (6) is under liquid trap (4)
The outlet of side and liquid trap (4) is connected with the entrance of reservoir (6), the entrance of the positive displacement pump (7) and the outlet of reservoir (6)
Connection;The liquid collecting component analyses instrument (5) is positioned at the side of liquid trap (4), and is connected with liquid trap (4) by connecting tube;Institute
Electromagnetic valve (22) is stated between liquid trap (4) and reservoir (6), and is located at the lower section of liquid collecting component analyses instrument (5);It is described
One end of heat tracing pipe (8) is connected with the sample gas outlet of condenser (3), and the other end is connected with light scattering analyzer (9), the sampling
Pump (10) is connected with light scattering analyzer (9) by connecting tube;The test lead and temperature sensing of the pitot tube tachymeter (12)
The induction end of device (13) is placed in flue (19) by sample tap, the pitot tube tachymeter (12) and temperature sensor (13)
The other end is connected with the terminals of controller (11) by electric wire respectively;The liquid collecting component analyses instrument (5), light scattering analyzer
(9) it is connected with controller (11) by electric wire;Effusion meter is respectively mounted successively from left to right on three groups of sampling tubes (2)
(15), pressure gauge (16), temperature sensor (13), flow control valve (14);In sample gas inlet and the outlet of the heat tracing pipe (8)
Also a temperature sensor (13) is respectively arranged respectively;Also respectively one is arranged in the entrance of the heat tracing pipe (8) and sampling pump (10)
Effusion meter (15).
2. a kind of super low concentration wet flue gas flue dust on-line measurement device according to claim 1, it is characterised in that:It is described to adopt
Using flute type cast formula, point three groups of arrangements open 3 thief holes to sample head (1) per group, form multidraw.
3. a kind of super low concentration wet flue gas flue dust on-line measurement device according to claim 1, it is characterised in that:It is described to adopt
The thieff hatch (18) of sample head (1) is just to flue gas direction of flow.
4. a kind of super low concentration wet flue gas flue dust on-line measurement device according to claim 1, it is characterised in that:It is described to adopt
Sample head (1) is provided with automatic back blow sweeping device (20) with sampling tube (2).
5. a kind of super low concentration wet flue gas flue dust on-line measurement device according to claim 1, it is characterised in that:It is described to adopt
Sample pipe (2) is from the horizontal by 2 °~5 ° inclination angles.
6. a kind of super low concentration wet flue gas flue dust on-line measurement device according to claim 1, it is characterised in that:It is described to take
The flow of sample pump (10) is not less than 100Nm3/h。
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CN201620936406.5U CN206057142U (en) | 2016-08-24 | 2016-08-24 | A kind of super low concentration wet flue gas flue dust on-line measurement device |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106092846A (en) * | 2016-08-24 | 2016-11-09 | 山西平朔煤矸石发电有限责任公司 | A kind of super low concentration wet flue gas flue dust on-line measurement device and On-line Measuring Method thereof |
CN108613848A (en) * | 2018-06-19 | 2018-10-02 | 华电电力科学研究院有限公司 | A kind of intelligent flue gas distribution sampler and sampling method |
CN108692997A (en) * | 2018-05-07 | 2018-10-23 | 西安交通大学 | A kind of flue gas droplet content test system and its flue gas drop sampler |
CN109030304A (en) * | 2018-08-16 | 2018-12-18 | 南京埃森环境技术股份有限公司 | A kind of flue gas minimum discharge micronic dust detection system and detection method |
CN111912942A (en) * | 2020-08-31 | 2020-11-10 | 马鞍山钢铁股份有限公司 | Online monitoring system and monitoring method for furnace combustion flue gas |
-
2016
- 2016-08-24 CN CN201620936406.5U patent/CN206057142U/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106092846A (en) * | 2016-08-24 | 2016-11-09 | 山西平朔煤矸石发电有限责任公司 | A kind of super low concentration wet flue gas flue dust on-line measurement device and On-line Measuring Method thereof |
CN106092846B (en) * | 2016-08-24 | 2018-08-21 | 山西平朔煤矸石发电有限责任公司 | A kind of super low concentration wet flue gas flue dust on-line measurement device and its On-line Measuring Method |
CN108692997A (en) * | 2018-05-07 | 2018-10-23 | 西安交通大学 | A kind of flue gas droplet content test system and its flue gas drop sampler |
CN108613848A (en) * | 2018-06-19 | 2018-10-02 | 华电电力科学研究院有限公司 | A kind of intelligent flue gas distribution sampler and sampling method |
CN109030304A (en) * | 2018-08-16 | 2018-12-18 | 南京埃森环境技术股份有限公司 | A kind of flue gas minimum discharge micronic dust detection system and detection method |
CN111912942A (en) * | 2020-08-31 | 2020-11-10 | 马鞍山钢铁股份有限公司 | Online monitoring system and monitoring method for furnace combustion flue gas |
CN111912942B (en) * | 2020-08-31 | 2023-03-03 | 马鞍山钢铁股份有限公司 | Online monitoring system and monitoring method for furnace combustion flue gas |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20170329 |