CN1924544A - Method and device for gas sampling pre-treatment for gas detecting - Google Patents
Method and device for gas sampling pre-treatment for gas detecting Download PDFInfo
- Publication number
- CN1924544A CN1924544A CN 200610053500 CN200610053500A CN1924544A CN 1924544 A CN1924544 A CN 1924544A CN 200610053500 CN200610053500 CN 200610053500 CN 200610053500 A CN200610053500 A CN 200610053500A CN 1924544 A CN1924544 A CN 1924544A
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- gas
- sample
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- heating
- pretreatment unit
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005070 sampling Methods 0.000 title abstract description 14
- 238000002203 pretreatment Methods 0.000 title 1
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 238000001914 filtration Methods 0.000 claims abstract description 28
- 239000002245 particle Substances 0.000 claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims abstract description 20
- 230000032683 aging Effects 0.000 claims description 11
- 238000007664 blowing Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 abstract description 3
- 238000007781 pre-processing Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 48
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
- 239000003546 flue gas Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000003483 aging Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000143437 Aciculosporium take Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
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Abstract
This invention discloses one gas sampling pre-processing method for gas monitoring, which comprises the following steps: a, acquiring sample gas from the device or tube to be tested; b, heating the sample gas to certain temperature to make the viscous particles; c, filtering the aged particles from the sample gas. This invention also discloses one gas sample pre-process device, which comprises the sample device fixed on the device or tube and pre-process device composed of chamber, heating device and filter device to flow the sample gas over the said chamber.
Description
Technical field
The present invention relates to a kind of gas sample preprocess method and device that is applied to gas-monitoring, particularly a kind of to gas sample in tested device or the pipeline and gas that sampling is obtained (being called for short sample gas down) thus in sticky particle thing heat agings such as tar after filter the method and apparatus of removing sticky particle thing in the sample gas.
Background technology
At present, more and more pay attention to the monitoring to process gas and emission gases in fields such as iron and steel, waste incineration, corresponding, gas monitoring system has also obtained application more and more widely in these fields.
A lot of occasions, gas monitoring system adopts the sampling method technology path.Gas in tested device or the pipeline is sampled earlier, filter, and led to afterwards that gasmetry is indoor measures, thereby obtains each tested component concentrations in the tested gas.Yet for the occasion that contains sticky particle things such as higher concentration tar in the tested gas, gas monitoring system exists filtrator easily to stop up, cause system's problem that quits work.Conventional solution is: filtrator is pulled down with organic solvent cleaned at set intervals, refill afterwards.Increase the workload of safeguarding so on the one hand, reduced the service efficiency of system on the other hand again; Have, some small sticky particle things may see through filtrator again, thereby pollute the devices such as gas in downstream, not only further increase maintenance workload, also may cause the reduction of measuring accuracy.
Summary of the invention
The technical matters that the present invention solves is to overcome the defective that prior art exists, a kind of gas sample preprocess method and device that is applied in the gas monitoring system is provided, thereby made gas monitoring system have that the engineering maintenance amount is little, service efficiency is high, the measuring accuracy advantages of higher.
The objective of the invention is to be achieved by following technical proposals:
A kind of gas sample preprocess method that is applied to gas-monitoring, concrete steps are: a. obtains sample gas from tested device or pipeline; B. sample gas is heated to uniform temperature, makes the viscous particles in the sample gas; C. filter out the ageing products that is produced among the step b in the sample gas.
Described sticky particle thing is a tar.
For realizing said method, the invention allows for a kind of like this gas sample pretreatment unit that is applied to gas-monitoring, comprise the sampler and the pretreatment unit that are installed on tested device or the pipeline, described pretreatment unit comprises cavity, heating arrangement and filtration unit, and the gas of taking a sample through described sampler flows through in described cavity.
Described pretreatment unit comprises that also a particle that is adsorbed on the described filtration unit blows to tested device or the interior back-blowing device of pipeline, and described back-blowing device comprises blowback source of the gas and valve.
Described well heater is an electric heater, comprises electrode, calandria, heating wire, and described electrode is installed on the calandria, and described calandria is on cavity, and described heating wire is on described calandria.
Described heating arrangement is installed on the cavity.
Described filtration unit is installed in the cavity.
Described pretreatment unit also comprises the heating and filtering device that is installed in the cavity.
Described heating and filtering device comprises heating and filtering net and carriage, and described carriage is installed in the one or both sides of described heating and filtering net.
Described pretreatment unit also comprises the stationary installation that is used for fixing described heating and filtering device, and described stationary installation is installed on the described cavity.
Compared with prior art, the invention has the beneficial effects as follows: 1) engineering maintenance amount is little, owing to adopt electric heater sticky particle thing heat agings such as tar in the gas in tested device or the pipeline and filtration, avoided sticky particle thing blocking filter, thereby need not or significantly reduce the cleaning filtrator, also avoided the sticky particle thing to pollute the downstream analysis device in addition; 2) improved the service efficiency of gas monitoring system; 3) improved monitoring system measuring accuracy.
Description of drawings
Fig. 1 is the structural profile synoptic diagram of a kind of pretreatment unit of taking a sample of the present invention.
Fig. 2 is the structural profile synoptic diagram of another kind of sampling pretreatment unit of the present invention.
Fig. 3 is the structural representation of the well heater in Fig. 1, Fig. 2 device.
Fig. 4 is the structural representation of the screen pack in Fig. 1 device.
Fig. 5 is the carrier structure synoptic diagram in Fig. 1 device.
Fig. 6 is the application synoptic diagram of a kind of pretreatment unit of taking a sample of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is done further detailed description.
Embodiment 1:
To shown in Figure 5, a kind of be used to realize the device that is applied to the gas sample preprocess method of gas-monitoring of the present invention as Fig. 1, Fig. 3, comprise sampler and pretreatment unit.Described sampler is a prior art, does not repeat them here.Described pretreatment unit comprises cavity 1, heating arrangement, heating and filtering device, stationary installation and filtration unit.Described cavity 1 is cylindric.Described heating arrangement comprises heating and filtering device, electrode 3, calandria 2 and heating wire (not shown), described electrode 3 is installed on the calandria 2, calandria 2 is two semicircle tubular sheet metals and the periphery that is looped around cavity 1, and described heating wire is looped around on the calandria 2.Described heating and filtering device comprises screen pack 4 and carriage 5,7, and screen pack 4 is installed in the inside of described cavity 1, connects by bolt 6 between 5, two carriages of the both sides installation bracket of screen pack 45,7.Described stationary installation is used for fixing the heating and filtering device in the cavity, comprises that first fixture 8 and second fixture, 9, the second fixtures 9 are installed on the described cavity, and first fixture 8 is installed between the described carriage 5 and second fixture 9.Described filtration unit comprises filtrator 10, and described filtrator 10 is installed in the described cavity 1.
Present embodiment has also disclosed a kind of method of removing tar in the flue gas, also is the course of work of said apparatus, and concrete steps are: a. takes a sample to the gas in tested device or the pipeline by sampler; B. sampled gas is by described cavity 1; Described electrode 3 energisings this moment raise the temperature of calandria 2 by heating wire, and then by heat conduction the temperature in the cavity 1 are raise, and the sticky particle things such as tar under high temperature action in the sample gas are heated aging, and are heated screen pack 4 and tentatively filter; C. the gas in the sample gas enters in the chamber 11 of described filtration unit in cavity 1, filters out the aging thing that produces among the step b by described filtrator 10 again, thereby has got rid of the sticky particle things such as tar in the sample gas, 13 discharges from the exit at last of sample gas.
Embodiment 2:
As Fig. 2, shown in Figure 3, a kind ofly be used to realize the device that is applied to the gas sample preprocess method of gas-monitoring of the present invention, as different from Example 1, do not have described heating and filtering device, first and second fixtures in the present embodiment, and described heating arrangement is installed in the periphery of described cavity 1.
Present embodiment has also disclosed a kind of method of removing tar in the flue gas, also is the course of work of said apparatus, with different among the embodiment 1 be not have the heating and filtering step among the described step b.
Embodiment 3:
To shown in Figure 6, a kind of multi-component gas monitoring system comprises sampling pretreatment unit 21, analytical equipment 22 as Fig. 1, Fig. 3.Described sampling pretreatment unit is installed on the tested gas pipeline 20 and with described analytical equipment 22 and is connected.The concrete structure of described sampling pretreatment unit 21 is identical with embodiment 1, also comprises back-blowing device simultaneously, and described back-blowing device is connected with filtration unit in the described sampling pretreatment unit 21, comprises blowback source of the gas 23, valve 24 and tracheae.
The working method of above-mentioned multi-component gas analytic system is: the flue gas in the tested gas pipeline 20 is by described sampling pretreatment unit 21 sampling and pre-service, thereby sticky particle things such as the dirt in the removal sampling flue gas, tar, the removing method of sticky particle things such as described tar is identical with embodiment 1; At last, flue gas is passed into analytical equipment 22, obtains the concentration value of many gas componants in the flue gas by analysis.
After above-mentioned sampling pretreatment unit 21 is worked a period of times, the aging thing that sticky particle things such as tar generate may stop up screen pack 4 and filtrator 10, at this moment the aging thing that generates with regard to the sticky particle things such as tar that need to assemble on removing screen pack 4 and the filtrator 10.At this moment, valve-off 25 is also opened the valve 24 of the blowback source of the gas 23 in the back-blowing device, blowback air is from purging the aging thing of sticky particle things such as the tar generation that concentrates on described screen pack 4 and the filtrator 10 in the other direction, these aging thing blowbacks are arrived in the tested gas pipeline 20, close the valve 24 of blowback source of the gas 23 afterwards and open valve 25, described gas monitoring system operate as normal.
It is pointed out that above-mentioned embodiment should not be construed as limiting the scope of the invention.Key of the present invention is, the sampling flue gas in the gas monitoring system is heated to uniform temperature makes viscous particles such as tar in the flue gas, and then filter out the aging thing that is generated, thereby get rid of the sticky particle things such as tar in the flue gas.Under the situation that does not break away from spirit of the present invention, any type of change that the present invention is made all should fall within protection scope of the present invention.
Claims (10)
1, a kind of gas sample preprocess method that is applied to gas-monitoring, concrete steps are: a. obtains sample gas from tested device or pipeline; B. sample gas is heated to uniform temperature, makes the viscous particles in the sample gas; C. filter out the ageing products that is produced among the step b in the sample gas.
2, method according to claim 1 is characterized in that: described sticky particle thing is a tar.
3, a kind of gas sample pretreatment unit that is applied to gas-monitoring, comprise the sampler and the pretreatment unit that are installed on tested device or the pipeline, it is characterized in that: described pretreatment unit comprises cavity, heating arrangement and filtration unit, and the gas of taking a sample through described sampler flows through in described cavity.
4, device according to claim 3 is characterized in that: described pretreatment unit comprises that also a particle that is adsorbed on the described filtration unit blows to tested device or the interior back-blowing device of pipeline, and described back-blowing device comprises blowback source of the gas and valve.
5, device according to claim 3 is characterized in that: described well heater is an electric heater, comprises electrode, calandria, heating wire, and described electrode is installed on the calandria, and described calandria is on cavity, and described heating wire is on described calandria.
6 according to claim 3 or 4 or 5 described devices, and it is characterized in that: described heating arrangement is installed on the cavity.
7, according to claim 3 or 4 or 5 described devices, it is characterized in that: described filtration unit is installed in the cavity.
8, according to claim 3 or 4 or 5 described devices, it is characterized in that: described pretreatment unit also comprises the heating and filtering device that is installed in the cavity.
9, device according to claim 8 is characterized in that: described heating and filtering device comprises heating and filtering net and carriage, and described carriage is installed in the one or both sides of described heating and filtering net.
10, device according to claim 8 is characterized in that: described pretreatment unit also comprises the stationary installation that is used for fixing described heating and filtering device, and described stationary installation is installed on the described cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100535007A CN1924544B (en) | 2006-09-09 | 2006-09-09 | Method for gas sampling pre-treatment for gas detecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100535007A CN1924544B (en) | 2006-09-09 | 2006-09-09 | Method for gas sampling pre-treatment for gas detecting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1924544A true CN1924544A (en) | 2007-03-07 |
| CN1924544B CN1924544B (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100535007A Expired - Fee Related CN1924544B (en) | 2006-09-09 | 2006-09-09 | Method for gas sampling pre-treatment for gas detecting |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915687A (en) * | 2010-08-04 | 2010-12-15 | 聚光科技(杭州)股份有限公司 | Gas preprocessing method and device applied to analytical instruments |
| CN102478470A (en) * | 2010-11-26 | 2012-05-30 | 中国石油化工股份有限公司 | Piston type vacuum degasser and its degassing method |
| CN103018075A (en) * | 2012-12-05 | 2013-04-03 | 北京航天益来电子科技有限公司 | Bypass built-in type diluting and sampling probe outside flue |
| CN104176358A (en) * | 2013-05-28 | 2014-12-03 | 中国石油化工股份有限公司 | Bottle plug and method for realizing automatic sampling by using bottle plug |
| CN105241729A (en) * | 2015-10-28 | 2016-01-13 | 武汉四方光电科技有限公司 | Device and method for gas analysis pretreatment |
| CN111238885A (en) * | 2020-03-18 | 2020-06-05 | 江西力沃德科技有限公司 | Extraction type coal chemical industry gas flue gas concentration online monitoring device and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2583656Y (en) * | 2002-12-03 | 2003-10-29 | 王昕竑 | Smoke concentration continuous monitoring sampler |
| CN2752745Y (en) * | 2004-12-14 | 2006-01-18 | 白名臣 | Smoke gas sampling dilution probe |
| CN200952978Y (en) * | 2006-09-09 | 2007-09-26 | 王健 | Gas sampling preprocessing device for gas monitoring |
-
2006
- 2006-09-09 CN CN2006100535007A patent/CN1924544B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915687A (en) * | 2010-08-04 | 2010-12-15 | 聚光科技(杭州)股份有限公司 | Gas preprocessing method and device applied to analytical instruments |
| CN101915687B (en) * | 2010-08-04 | 2012-03-28 | 聚光科技(杭州)股份有限公司 | Gas preprocessing method and device applied to analytical instruments |
| CN102478470A (en) * | 2010-11-26 | 2012-05-30 | 中国石油化工股份有限公司 | Piston type vacuum degasser and its degassing method |
| CN102478470B (en) * | 2010-11-26 | 2014-07-02 | 中国石油化工股份有限公司 | Piston type vacuum degasser and its degassing method |
| CN103018075A (en) * | 2012-12-05 | 2013-04-03 | 北京航天益来电子科技有限公司 | Bypass built-in type diluting and sampling probe outside flue |
| CN103018075B (en) * | 2012-12-05 | 2015-10-07 | 北京航天益来电子科技有限公司 | The outer dilution sampling probe of the built-in flue of bypass |
| CN104176358A (en) * | 2013-05-28 | 2014-12-03 | 中国石油化工股份有限公司 | Bottle plug and method for realizing automatic sampling by using bottle plug |
| CN105241729A (en) * | 2015-10-28 | 2016-01-13 | 武汉四方光电科技有限公司 | Device and method for gas analysis pretreatment |
| CN111238885A (en) * | 2020-03-18 | 2020-06-05 | 江西力沃德科技有限公司 | Extraction type coal chemical industry gas flue gas concentration online monitoring device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1924544B (en) | 2011-01-19 |
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