CN108254581A - A kind of gaseous pollutant multiple spot automatic sampling tests system - Google Patents
A kind of gaseous pollutant multiple spot automatic sampling tests system Download PDFInfo
- Publication number
- CN108254581A CN108254581A CN201810037475.6A CN201810037475A CN108254581A CN 108254581 A CN108254581 A CN 108254581A CN 201810037475 A CN201810037475 A CN 201810037475A CN 108254581 A CN108254581 A CN 108254581A
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- sample
- sampling
- control equipment
- switching control
- flue
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- 238000005070 sampling Methods 0.000 title claims abstract description 45
- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 17
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 17
- 239000000523 sample Substances 0.000 claims abstract description 77
- 239000007789 gas Substances 0.000 claims abstract description 31
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000003546 flue gas Substances 0.000 claims abstract description 20
- 238000007664 blowing Methods 0.000 claims abstract description 7
- 239000011159 matrix material Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000000428 dust Substances 0.000 claims abstract description 4
- 235000019504 cigarettes Nutrition 0.000 claims 2
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000007405 data analysis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
A kind of gaseous pollutant multiple spot automatic sampling tests system, including several sampling probes, sample feed channel, rotary automatic switching control equipment, and pretreatment unit, flue gas analyzer, aspiration pump, compressed air back-blowing device and triple valve；Sampling probe inverse flue gas flow direction in flue is distributed into matrix form, the sample gas that rotary automatic switching control equipment is recycled difference position sampling probe in switching selection flue enters flue gas analyzer, and setting pretreatment unit carries out dehumidifying dust removal process to sample gas before flue gas analyzer；Other sampling probe sample gas enter the bypass gas chamber of rotary automatic switching control equipment, are discharged through aspiration pump；To prevent sampling probe sample tap and sample feed channel from blocking, blowback is periodically carried out to sample feed channel and sampling probe using bypass gas chamber of the compressed air back-blowing device through sample gas automatic switching control equipment；The present invention can be used for on-line continuous monitoring, it can also be used to which field test is tested, and can accurately be grasped the gaseous pollutant concentration field distributions on flue Measure section, be greatly improved the representativeness, accuracy and working efficiency of test data.
Description
Technical field
The present invention relates to gaseous pollutant technical field of measurement and test, and in particular to a kind of gaseous pollutant multiple spot automatic sampling is surveyed
Test system.
Technical background
Combined according to National Development and Reform Committee, Environmental Protection Department, National Energy Board issue " ring send out [2015] No. 164 about print
Hair《Implement in full coal-burning power plant's minimum discharge and reducing energy consumption programme of work》Notice " requirement, so far the whole nation completed
More than 60% coal-burning power plant's minimum discharge retrofit work.In flue gas pollutant on-line monitoring be mostly single-point setting, test data by
Environmental protection facility operating condition and point position flue cross section product, flue flow field, concentration field are affected, and test data cannot have
The effect reflection true runnability of environmental protection facility, is unfavorable for combustion adjustment and data analysis.Make a service test at the scene test when,
Mobile handoff multimetering is mostly carried out using a set of flue gas analyzer and a nesting gas probe tube, frequently need to move or replace sampling
Position, operation element amount is big, and test time is longer.
Invention content
The technical issues of it is an object of the invention to solve above-mentioned on-line monitoring and on-the-spot test, provides a kind of gaseous contamination
Object multiple spot automatic sampling tests system.It is accurate to grasp gaseous pollutant distribution of concentration in flue available for on-line continuous monitoring
Situation, convenient for the combustion adjustment of environmental protecting device.Field test test is can also be used for, greatly improves representativeness, the standard of test data
True property and working efficiency.
To achieve the above objectives, the present invention adopts the following technical scheme that：
A kind of gaseous pollutant multiple spot automatic sampling tests system, including several sampling probes 2 and corresponding sample feed channel
3rd, rotary automatic switching control equipment 4, pretreatment unit 5, flue gas analyzer 6, aspiration pump 8, compressed air back-blowing device 7 and threeway
Plug valve 9；Measure section superinverse flue gas flow direction of the sampling probe 2 in flue 1 is distributed into matrix form, is rotatably cut automatically
Changing device 4 can automatically switch that the sample gas of a sampling probe 2 of difference position is selected to enter flue gas analyzer through sample feed channel 3
6, the pretreatment unit 5 that dehumidifying dust removal process is carried out to sample gas is provided with before flue gas analyzer 6；Other sampling probes 2 pass through
The bypass gas chamber 12 and threeway plug valve 9 of rotary automatic switching control equipment 4 are respectively communicated with aspiration pump 8 and compressed air blowback dress
7 are put, the sample gas of other sampling probes 2 enters the bypass gas chamber 12 of rotary automatic switching control equipment 4, is discharged through aspiration pump 8；For
Prevent 2 sample tap of sampling probe and sample feed channel 3 from blocking, setting compressed air back-blowing device 7 periodically automatically switches through rotary
The bypass gas chamber 12 of device 4 carries out blowback to sample feed channel 3 and sampling probe 2.
The rotary automatic switching control equipment 4 includes fixing end 15 and the rotation being rotatably disposed in fixing end 15 selection
14 are held, sample tracheae pipeline joint 10 is set in fixing end 15, is set on rotation selection end 14 and passes through rotation rotation selection end 14 and one
The sample gas selection interface 11 and bypass gas chamber 12 and bypass interface 13 that a sample tracheae pipeline joint 10 connects.
The flue 1 to be rectangular or round, accumulated according to flue cross section it is of different sizes, the spacing of sampling probe 2 for 60~
100cm。
Tracing system is provided on the sampling probe 2 and sample feed channel 3, heat tracing temperature is not less than 120 DEG C.
Compared to the prior art compared with the present invention has following advantage：
Pollutant on-line monitoring is mostly single-point setting in flue gas, and test data is by environmental protection facility operating condition and point position
Flue cross section product, flue flow field, concentration field are affected, and test data cannot effectively reflect the true maneuverability of environmental protection facility
Can, it is unfavorable for combustion adjustment and data analysis.Make a service test at the scene test when, mostly using a set of flue gas analyzer and one
Nesting gas probe tube carries out mobile handoff multimetering, frequently need to move or replace sample position, operation element amount is big, and test is held
The continuous time is longer.The present invention can be used for on-line continuous monitoring, accurate to grasp gaseous pollutant concentration field distributions in flue, just
In the combustion adjustment of environmental protecting device, it can also be used to which field test is tested, and greatly improves the representativeness, accuracy and work of test data
Make efficiency.
Description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the structure diagram of rotary automatic switching control equipment, wherein：Fig. 2 a are schematic side view, and Fig. 2 b is fix
A-A direction views are held, Fig. 2 c are rotation selection end B-B direction view.
Specific embodiment
With reference to the accompanying drawings and embodiments, the present invention is further illustrated.
As shown in Figure 1, a kind of gaseous pollutant multiple spot automatic sampling test system of the present invention, including several sampling probes
2nd, sample feed channel 3, rotary automatic switching control equipment 4, pretreatment unit 5, flue gas analyzer 6, aspiration pump 8, compressed air blowback
Device 7 and threeway plug valve 9 etc..Measure section superinverse flue gas flow direction of the sampling probe 2 in flue 1 is distributed into matrix form, rotation
Rotatable automatic switching control equipment 4 can automatically switch that the sample gas of a sampling probe 2 of different location is selected to enter flue gas analyzer 6,
Pretreatment unit 5 is set to carry out dehumidifying dust removal process to sample gas before flue gas analyzer 6；The sample gas of other sampling probes 2 enters
The bypass gas chamber 12 of rotary automatic switching control equipment 5, is discharged through aspiration pump 8.
As shown in Fig. 2, the rotary automatic switching control equipment 4 includes fixing end 15 and rotation selection end 14.In fixing end 9
Sample tracheae pipeline joint 10 is set, sample gas selection interface 11, bypass gas chamber 12 and bypass interface 13 are set on rotation selection end 14.
To prevent sampling probe 2 and sample feed channel 3 from blocking, setting compressed air back-blowing device 7, compressed air is revolved through threeway
The bypass gas chamber for entering rotary automatic switching control equipment after plug valve switching carries out regular blowback to sample feed channel and sampling probe.
Gaseous pollutant is dissolved in condensation water in flue gas to prevent in sampling process, and sampling probe 2 and sample feed channel 3 are provided with
Tracing system, heat tracing temperature are not less than 120 DEG C.
As the preferred embodiment of the present invention, sampling probe 2 is distributed in flue 1 into matrix form, according to flue cross section
Product is of different sizes, and the spacing of sampling probe 2 is 60~100cm.
Claims (4)
1. a kind of gaseous pollutant multiple spot automatic sampling tests system, including several sampling probes (2) and corresponding sample feed channel
(3), rotary automatic switching control equipment (4), pretreatment unit (5), flue gas analyzer (6), aspiration pump (8), compressed air blowback
Device (7) and threeway plug valve (9)；It is characterized in that：Measure section superinverse cigarette of the sampling probe (2) in flue (1)
Air-flow is distributed into matrix form, and rotary automatic switching control equipment (4) can automatically switch to select a sampling of difference position to visit
The sample gas of head (2) into flue gas analyzer (6), is provided with before flue gas analyzer (6) and dehumidifies to sample gas through sample feed channel (3)
The pretreatment unit (5) of dust removal process；The bypass gas chamber that other sampling probes (2) pass through rotary automatic switching control equipment (4)
(12) and threeway plug valve (9) is respectively communicated with aspiration pump (8) and compressed air back-blowing device (7), other sampling probes (2)
Sample gas enter rotary automatic switching control equipment (4) bypass gas chamber (12), through aspiration pump (8) discharge；To prevent sampling probe
(2) sample tap and sample feed channel (3) block, and setting compressed air back-blowing device (7) is periodically through rotary automatic switching control equipment (4)
Bypass gas chamber (12) blowback is carried out to sample feed channel (3) and sampling probe (2).
2. a kind of gaseous pollutant multiple spot automatic sampling test system according to claim 1, it is characterised in that：The rotation
Rotatable automatic switching control equipment (4) includes fixing end (15) and the rotation being rotatably disposed in fixing end (15) selection end (14),
In fixing end (15) set sample tracheae pipeline joint (10), rotation selection end (14) on setting by rotate rotation selection end (14) with
The sample gas of one sample tracheae pipeline joint (10) connection selects interface (11) and bypass gas chamber (12) and bypass interface (13).
3. a kind of gaseous pollutant multiple spot automatic sampling test system according to claim 1, it is characterised in that：The cigarette
Road (1) is rectangular or round, and of different sizes according to flue cross section product, the spacing of sampling probe (2) is 60~100cm.
4. a kind of gaseous pollutant multiple spot automatic sampling test system according to claim 1, it is characterised in that：It is described to take
Tracing system is provided on sample probe (2) and sample feed channel (3), heat tracing temperature is not less than 120 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810037475.6A CN108254581B (en) | 2018-01-15 | 2018-01-15 | Gaseous pollutant multi-point automatic sampling test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810037475.6A CN108254581B (en) | 2018-01-15 | 2018-01-15 | Gaseous pollutant multi-point automatic sampling test system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108254581A true CN108254581A (en) | 2018-07-06 |
| CN108254581B CN108254581B (en) | 2023-10-31 |
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| CN201810037475.6A Active CN108254581B (en) | 2018-01-15 | 2018-01-15 | Gaseous pollutant multi-point automatic sampling test system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918786A (en) * | 2018-08-07 | 2018-11-30 | 华电电力科学研究院有限公司 | A kind of the mobile test device and its test method of the analysis of flue gas denitrification system real-time sampling |
| CN109991046A (en) * | 2019-04-25 | 2019-07-09 | 国电环境保护研究院有限公司 | The NH of SCR reactor3Concentration on-line period measuring device and method |
| CN110668486A (en) * | 2019-11-06 | 2020-01-10 | 中材海外工程有限公司 | Novel intelligent kiln dust desulfurization system of cement plant |
| CN110967228A (en) * | 2019-12-25 | 2020-04-07 | 安徽皖仪科技股份有限公司 | Dynamic multi-point sampling device |
| CN112146942A (en) * | 2020-08-11 | 2020-12-29 | 华电电力科学研究院有限公司 | Device and method for simultaneous sampling and time-sharing rotation measurement of NOx in SCR (selective catalytic reduction) denitration system |
| CN113686627A (en) * | 2021-08-26 | 2021-11-23 | 国能南宁发电有限公司 | Denitration system flue gas multiple spot sampling system |
| CN113884624A (en) * | 2021-09-29 | 2022-01-04 | 国网浙江省电力有限公司营销服务中心 | Power production exhaust emission detection system based on 5G communication |
| CN116519394A (en) * | 2023-06-14 | 2023-08-01 | 广东安源鼎盛检测评价技术服务有限公司 | Dust sampler for smoke detection |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918786A (en) * | 2018-08-07 | 2018-11-30 | 华电电力科学研究院有限公司 | A kind of the mobile test device and its test method of the analysis of flue gas denitrification system real-time sampling |
| CN109991046A (en) * | 2019-04-25 | 2019-07-09 | 国电环境保护研究院有限公司 | The NH of SCR reactor3Concentration on-line period measuring device and method |
| CN110668486A (en) * | 2019-11-06 | 2020-01-10 | 中材海外工程有限公司 | Novel intelligent kiln dust desulfurization system of cement plant |
| CN110967228A (en) * | 2019-12-25 | 2020-04-07 | 安徽皖仪科技股份有限公司 | Dynamic multi-point sampling device |
| CN112146942A (en) * | 2020-08-11 | 2020-12-29 | 华电电力科学研究院有限公司 | Device and method for simultaneous sampling and time-sharing rotation measurement of NOx in SCR (selective catalytic reduction) denitration system |
| CN113686627A (en) * | 2021-08-26 | 2021-11-23 | 国能南宁发电有限公司 | Denitration system flue gas multiple spot sampling system |
| CN113686627B (en) * | 2021-08-26 | 2023-10-27 | 国能南宁发电有限公司 | Flue gas multipoint sampling system of denitration system |
| CN113884624A (en) * | 2021-09-29 | 2022-01-04 | 国网浙江省电力有限公司营销服务中心 | Power production exhaust emission detection system based on 5G communication |
| CN113884624B (en) * | 2021-09-29 | 2024-02-13 | 国网浙江省电力有限公司营销服务中心 | Electric power production waste gas emission detecting system based on 5G communication |
| CN116519394A (en) * | 2023-06-14 | 2023-08-01 | 广东安源鼎盛检测评价技术服务有限公司 | Dust sampler for smoke detection |
| CN116519394B (en) * | 2023-06-14 | 2023-10-31 | 广东安源鼎盛检测评价技术服务有限公司 | Dust sampler for smoke detection |
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| CN108254581B (en) | 2023-10-31 |
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