CN205785966U - Flue gas sampling cleaning system for dioxin on-line checking - Google Patents
Flue gas sampling cleaning system for dioxin on-line checking Download PDFInfo
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- CN205785966U CN205785966U CN201620553950.1U CN201620553950U CN205785966U CN 205785966 U CN205785966 U CN 205785966U CN 201620553950 U CN201620553950 U CN 201620553950U CN 205785966 U CN205785966 U CN 205785966U
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- flue gas
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Abstract
This utility model includes organic pollutants detection technique, it is desirable to provide a kind of flue gas sampling cleaning system for dioxin on-line checking.This system includes the sample devices for gathering flue gas sample, and sample devices is sequentially connected with condensation by heat traced pipeline and removes water assembly, regulation valve, effusion meter and sampling pump, and the floss hole of sampling pump leads to air；Described heat traced pipeline is connected with attemperating unit, to realize temperature control.This utility model can provide power of bleeding by high-temperature flue gas to purify concentration in the way of shunting and to be continuously supplied to subsequent detection system to realize common sampling pump, finally realizes the detection of dioxin real-time online.This utility model overcomes the shortcoming of sample detecting technology for a long time well, can reflect the concentration of emission of dioxin in flue gas the most in time.
Description
Technical field
This utility model includes organic pollutants detection technique, particularly to the flue gas sampling for dioxin on-line checking
Cleaning system.
Background technology
Dioxin belongs to trace level material, will accurately detect the concentration of dioxin in flue gas, has the highest technology difficult
Degree.Detection to dioxin now carries out off-line analysis after mainly using collection in worksite sample, the sample palpus collected
After the sample pretreatment process of very complicated, with high-resolution gas chromatogram/high resolution mass spectrum combined instrument (HRGC/HRMS) point
Analysis result.The off-line analysis measurement cycle typically requires 1 to 2 time-of-weeks, and the most seriously, chemical reagent expense and cost of labor are held high
Expensive, and analysis result has retardance and cannot provide real-time directive function to field working conditions, it is difficult to carry out two evils widely
The detection work of English, also governs simultaneously and limitedly controls dioxin comprehensively.
The key factor that dioxin on-line checking realizes is to select have the finger of certain dependency with dioxin
Show thing.Owing to the order of magnitude of dioxin is too low, usual online measuring technique means be real-time online detection flue gas in dioxin
There is the indicant higher than the dioxin order of magnitude of good correlation in concentration, reflects the real-time emission behaviour of dioxin.Mesh
Front research finds that more suitably indicant mostly is the chloro-cyclic organic molecule such as chlorobenzene, chlorophenol, and this type organic is especially
The high volatility of low chloro, in sampling, loss is big.The smoke components of real-time sampling is extremely complex, has both included Conventional pollution such as
CO, HCl, also contain a number of imperfect combustion product (PICs), chloro micromolecular compound, chlorinated aromatic compound,
The organic pollution such as Polychlorinated biphenyls, dioxin.Although the concentration that the material such as chlorobenzene, chlorophenol is in flue gas compares dioxin, exceed
Two orders of magnitude, can reach PPM level, but actual concentrations situation in flue gas to be kept, do not disturbed, continuously by other compositions in flue gas
Constantly enter in on-line measuring device and detect, still there is the biggest difficulty.
Utility model content
The technical problems to be solved in the utility model is, overcomes deficiency of the prior art, it is provided that a kind of for dioxin
The flue gas sampling cleaning system of on-line checking.
For solving technical problem, solution of the present utility model is:
There is provided a kind of flue gas sampling cleaning system for dioxin on-line checking, including for gathering adopting of flue gas sample
Sample equipment；Described sample devices is sequentially connected with condensation by heat traced pipeline and removes water assembly, regulation valve, effusion meter and sampling pump, adopts
The floss hole of sample pump leads to air；Described heat traced pipeline is connected with attemperating unit, to realize temperature control.
In this utility model, being provided with threeway on the heat traced pipeline of sample devices outlet, an interface of threeway is by companion
Hot pipeline is connected to pre-concentration instrument.
In this utility model, also including the filter of band heating function, the particle size that can filter is below 0.1 μm；
The entrance of filter connects with sample devices outlet, and the outlet of filter connects except water assembly with condensation.
In this utility model, described sample devices is sampling gun；Sampling gun includes adopting sample gas inlet, sampling gas exports, instead
Air blowing entrance, primary filter and temperature control heating parts；Primary filter is ceramic element, and the particle size that can filter is
Below 1.0 μm.
In this utility model, described condensation is composed in series with multiple exsiccators by condensing tube except water assembly.
Compared with prior art, the beneficial effects of the utility model are:
1, this utility model can provide power of bleeding by high-temperature flue gas to purify in the way of shunting to realize common sampling pump
Concentrate and be continuously supplied to subsequent detection system, finally realizing the detection of dioxin real-time online.
2, this utility model overcomes the shortcoming of sample detecting technology for a long time well, can reflect the most in time
The concentration of emission of dioxin in flue gas.
Accompanying drawing explanation
Fig. 1 is smoke collecting and filter plant schematic diagram.
Fig. 2 is sampling pump group and pre-concentration instrument schematic diagram.
Reference in figure: sampling gun 1, temperature controller 2, filter 3, condensing tube 4, exsiccator 5, regulation valve 6, effusion meter 7,
Sampling pump 8, pre-concentration instrument 9.
Detailed description of the invention
As it is shown in figure 1, this utility model includes for gathering for the flue gas sampling cleaning system of dioxin on-line checking
The sampling gun 1 of flue gas sample；Sampling gun 1 is sequentially connected with filter 3, condensation except water assembly, regulation valve 6, stream by heat traced pipeline
Gauge 7 and sampling pump 8, the floss hole of sampling pump 8 leads to air.Filter 3 and condensation are except setting on the heat traced pipeline between water assembly
Having threeway, an interface of threeway is connected to pre-concentration instrument 9 by heat traced pipeline.Condensation is dry with multiple by condensing tube 4 except water assembly
Dry device 5 is composed in series.The filter 3 of heat traced pipeline described in the utility model and band heating function is real by independent temperature controller 2
Existing temperature controls.Sampling gun 1 includes adopting sample gas inlet, sampling gas outlet, blowback air entrance, primary filter and temperature control heating portion
Part, temperature control heating parts are connected with independent temperature controller；Primary filter is ceramic element, and the particle size that can filter is
Below 1.0 μm.
Using method illustrates:
Sampling pump 8 work produces continuous print and bleeds power, and regulation valve 6 is adjusted to required extraction flow according to effusion meter 7.
The high-temperature flue gas of sampled point enters from the sample gas entrance of sampling gun 1, removes through primary filter (temperature controls at 150 DEG C)
Go the impurity such as the tar in flue gas, dust, the companion below gas cleaning to particle size 1.0 μm, under 150 DEG C of temperature controls
Hot pipeline is transported to filter 3 (temperature controls at 150 DEG C), flue gas is purified to below particle size 0.1 μm again, afterwards
Through diversion three-way, a road enters pre-concentration instrument 9, and a road, is cooled to condensed for high-temperature flue gas water except water assembly through condensation
It is dried except water after room temperature, then through overregulating valve 6, effusion meter 7, is connected with the end of bleeding of sampling pump 8.The gas being connected with sampling pump 8
Body pipeline is the total road of sample gas, provides bleed power and total flow regulation and control for diversion three-way front end.Pre-concentration instrument 9 place gas
Branch road is final dioxin on-line checking sampling gas branch road, with the flow-control of pre-concentration instrument 9, gathers and concentrates for follow-up inspection
Survey instrument uses.
In this utility model, have employed heat traced pipeline, the filter 3 of band heating function, the temperature control heating parts of sampling gun 1
Design, its purpose be provided to ensure flue gas with condition of high temperature collection enter pre-concentration instrument, prevent flue gas internal object Organic substance
Loss.All of heater block is the most each provided with a set of attemperating unit (for the combination of temperature controller-solid-state relay),
Regulation and control constant temperature.Wherein, heat traced pipeline is Stainless steel 316 SS material, it is ensured that good temperature stabilization and gas long-distance transportation.Cross
Filter 3 uses stainless steel casing and hollow cylindrical glass fibre filter element, and filter element can to 0.1 μm particles below thing filter efficiency
To reach 99%.Using pressure type fixed form, flue gas enters rear flank in filter element from filter 3 entrance and arrives through filter element filtering
Outside, then get rid of from outlet, it is ensured that sufficiently filtration contact area.Stainless steel casing has heating function simultaneously, prevents flue gas cold
Solidifying loss, can use the FPD type product of AtmoSeal company.
Condensation is except water assembly is by the flue gas condensing cooling of the high temperature dry use requirement meeting sampling pump 8 again.Sampling pump 8 He
Regulation valve 6, effusion meter 7 combine, it is provided that continuous print is bled power, and bleeding regulating range of flow.Diversion three-way is used for realizing height
Temperature flue gas sample introduction branch road and condensation except after water flue gas bleed the combination on total road.Pre-concentration instrument 9 regulates high-temperature flue gas sample introduction branch road
Flow i.e. sampling flow under fixedly adjustable cocnentration factor, concentrates.
In this utility model, the sample gas after dust removal process enters in pre-concentration instrument 9.Pre-concentration instrument 9 is loaded with suction
Attached medium, at low temperatures the dioxin indicant molecule of the overwhelming majority in adsorption sampling gas；After absorption completes, pre-concentration instrument
9 are rapidly heated so that the indicant molecule in adsorbing medium promptly departs from very short time, along with a small amount of carrier gas is quickly flowed
Go out pre-concentration instrument 9 and enter subsequent analysis step.Through the process of such a absorption/desorption, in flue gas, content is extremely low originally
Indicant molecule is concentrated, and concentration can promote 2 to 3 orders of magnitude, and then is greatly enhanced detection signal, improves whole
The detection limit of system.Pre-concentration instrument 9 in this utility model loads two groups of parallel adsorbing mediums, when one of which is in absorption
During state, another group is then in detachment status, thus improves the efficiency of sampling and detection.Pre-concentration instrument 9 in this utility model
The TT24-7 type product that Marks company produces can be used.
Claims (5)
1. for the flue gas sampling cleaning system of dioxin on-line checking, including setting for gathering the sampling of flue gas sample
Standby；It is characterized in that, described sample devices is sequentially connected with condensation by heat traced pipeline and except water assembly, regulation valve, effusion meter and adopts
Sample pump, the floss hole of sampling pump leads to air；Described heat traced pipeline is connected with attemperating unit, to realize temperature control.
System the most according to claim 1, it is characterised in that be provided with threeway on the heat traced pipeline of sample devices outlet,
One interface of threeway is connected to pre-concentration instrument by heat traced pipeline.
System the most according to claim 1 and 2, also includes the filter of band heating function, the particle size that can filter
It it is below 0.1 μm；The entrance of filter connects with sample devices outlet, and the outlet of filter connects except water assembly with condensation.
System the most according to claim 1 and 2, it is characterised in that described sample devices is sampling gun；Sampling gun includes adopting
Sample gas inlet, sampling gas outlet, blowback air entrance, primary filter and temperature control heating parts；Primary filter is ceramic element,
The particle size that can filter is below 1.0 μm.
System the most according to claim 1 and 2, it is characterised in that described condensation is dry with multiple by condensing tube except water assembly
Dry device is composed in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620553950.1U CN205785966U (en) | 2016-06-08 | 2016-06-08 | Flue gas sampling cleaning system for dioxin on-line checking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620553950.1U CN205785966U (en) | 2016-06-08 | 2016-06-08 | Flue gas sampling cleaning system for dioxin on-line checking |
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| Publication Number | Publication Date |
|---|---|
| CN205785966U true CN205785966U (en) | 2016-12-07 |
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ID=58133834
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620553950.1U Active CN205785966U (en) | 2016-06-08 | 2016-06-08 | Flue gas sampling cleaning system for dioxin on-line checking |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333313A (en) * | 2019-07-30 | 2019-10-15 | 浙江富春江环保科技研究有限公司 | A kind of flue gas pollutant processing method that alternately concentration discharges online |
| CN112924568A (en) * | 2019-12-06 | 2021-06-08 | 中国科学院大连化学物理研究所 | Online pretreatment device and method for flue gas sample |
| US20220015412A1 (en) * | 2018-12-13 | 2022-01-20 | Philip Morris Products S.A. | Aerosol-generating device comparator |
| RU2802358C2 (en) * | 2018-12-13 | 2023-08-28 | Филип Моррис Продактс С.А. | Device for comparing aerosol generating devices |
-
2016
- 2016-06-08 CN CN201620553950.1U patent/CN205785966U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220015412A1 (en) * | 2018-12-13 | 2022-01-20 | Philip Morris Products S.A. | Aerosol-generating device comparator |
| RU2802358C2 (en) * | 2018-12-13 | 2023-08-28 | Филип Моррис Продактс С.А. | Device for comparing aerosol generating devices |
| US11812777B2 (en) * | 2018-12-13 | 2023-11-14 | Philip Morris Products S.A. | Aerosol-generating device comparator |
| CN110333313A (en) * | 2019-07-30 | 2019-10-15 | 浙江富春江环保科技研究有限公司 | A kind of flue gas pollutant processing method that alternately concentration discharges online |
| CN110333313B (en) * | 2019-07-30 | 2020-06-09 | 浙江富春江环保科技研究有限公司 | Treatment method for online alternate concentration and release of smoke pollutants |
| CN112924568A (en) * | 2019-12-06 | 2021-06-08 | 中国科学院大连化学物理研究所 | Online pretreatment device and method for flue gas sample |
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