CN101387583A - Apparatus for recovering and sampling coke oven gas - Google Patents
Apparatus for recovering and sampling coke oven gas Download PDFInfo
- Publication number
- CN101387583A CN101387583A CNA2008101558378A CN200810155837A CN101387583A CN 101387583 A CN101387583 A CN 101387583A CN A2008101558378 A CNA2008101558378 A CN A2008101558378A CN 200810155837 A CN200810155837 A CN 200810155837A CN 101387583 A CN101387583 A CN 101387583A
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- China
- Prior art keywords
- sampling
- gas
- coke oven
- oven gas
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005070 sampling Methods 0.000 title claims abstract description 25
- 239000000571 coke Substances 0.000 title abstract description 9
- 238000005057 refrigeration Methods 0.000 claims abstract 2
- 239000000919 ceramic Substances 0.000 claims description 21
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 229920001973 fluoroelastomer Polymers 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 8
- 238000004458 analytical method Methods 0.000 abstract description 3
- 239000000284 extract Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract 3
- 229910010293 ceramic material Inorganic materials 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
- 238000010186 staining Methods 0.000 abstract 1
- 239000011269 tar Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 27
- 239000000523 sample Substances 0.000 description 21
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 12
- 238000002425 crystallisation Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 235000018927 edible plant Nutrition 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a design method of a device which extracts and analyzes sample gas in the coke oven gas recovery, mainly electrically traps the analysis components of the coke oven gas before being coked, while the device can effectively remove the components of viscidity and strong corrosion as tars, hydrocarbons and ammonia gas from coke oven gas. The device mainly adopts a novel filmed high temperature ceramic material device to sample and analyze gas, to confirm the safety of the whole coke oven gas recovery, which is characterized in that: (1) the system can continuously sample gas in coke oven smoke condition; (2) the system adopts the compound ceramic material of reasonable structure and stable property to improve the stability and the safety in sampling and analysis; (3) the system adopts compressed air for refrigeration to avoid pollutants in the whole recovery and sampling, to obtain non-staining property.
Description
Technical field
The present invention proposes a kind of method for designing that is used for the coke-oven gas sampler, especially at continuous environment at the line extraction coke-oven gas.
Background technology
For the steel-making industry, output, the quality requirements of iron are higher.Coke is the main material of blast furnace ironmaking, and it is mainly obtained at coking chamber by raw coal, and the coal resources of China are very abundant, so the coke industry is to have very big use.And the coke-oven gas that produces in process of coking is the fuel of high heat value, it is again the important organic synthesis raw material of industry, contain explosive gases such as hydrogen and methane in the gas, and low boilers and sulfide such as a large amount of tar, benzene, naphthalene, background gas composition complexity.Therefore, in order to improve the control to coal-gas recovering technology, strengthen security, improve rate of energy, the coke-oven gas sampling method mainly contains two classes at present, promptly online and sampling formula.Thereby online analysis mainly is to adopt the adsorption rate different compositions that obtain in gas gas of gas with various to light, but, gas is rich in tar, benzene, the material of the easy crystallization of equivalent low boiling how because gathering, so needing high pure nitrogen purges in emission laser port and reception place, and can divide dilution with the sample pneumatolytic in the flue like this, make assay value on the low side.The crucial sampling probe equipment that the sampling formula is analyzed, what produced by Siemens Company at present is a kind of sampling method of pneumatic extraction probe, the starter gear sealing that this method need be taken a sample is very good, and the compressed gas source of certain pressure will be provided, be convenient to extract probe and when overhaul of the equipments, probe extracted.For the sampling formula, owing to contain the material of easy crystallization in the sample gas, therefore can often stop up probe, thereby cause the big and waste resource of maintenance capacity.
Summary of the invention
The present invention discloses a kind of device that can continuous drawing sample gas, and this device mainly partly is made up of cooling control system, sampling system etc.Cooling control system is positioned at the skin of total system; its major function is that the temperature that guarantees the inner space is in temperature constant state; adopt adjustable compression air eddy refrigerator to freeze; carry out the adjusting of inner space temperature according to the internal temperature conversion; internal temperature is remained in the certain limit; purpose is the rapid crystallization of material that helps tar, benzene, how to wait easy crystallization, and outer wall is made up of stainless-steel tube again simultaneously, total system is had the effect of an overfill protection.Sampling system is positioned at internal layer, its major function is to guarantee the unobstructed of sample gas passage, guaranteeing does not simultaneously have entering of other non-sample pneumatolytics branches, guarantees the authenticity of sample gas, adopts the sampling pipe of the composite ceramic pipe of resistant to elevated temperatures lined ceramics film as coke-oven gas.Use this device can extract true sample gas safely.
The advantage of device disclosed by the invention is as follows:
(1) has continuity.Because the internal layer ceramic membrane has good adsorbability, can bear the variation of internal and external temperature, and can not be out of shape, therefore, the sampling probe of this device can the stable work of continuity.
(2) has nonstaining property.The cooling system of device adopts the vortex refrigerator, directly uses pressurized air to freeze, thus the gas that it gives off to atmosphere without any pollution, and ceramic membrane can reclaim the processing back and reuses.
(3) has higher security: because ceramic membrane and ceramic stopple coupon all have good stability and inoxidizability, so can stop vortex refrigerator cold air to enter stopple coupon well, thereby guaranteed the security of sampling, outside simultaneously employing stainless steel is fixed, and system is stablized and safety more in sampling process.
Description of drawings
Fig. 1 represents the device synoptic diagram of continuous drawing coke-oven gas sample gas, and Fig. 2 represents to change the ceramic membrane synoptic diagram:
1: manual ball valve, 2: electrical ball valve, 3: sampling probe top cover, 4: stainless steel wire web filter (), 5: fluororubber sealing gasket (), 6: stainless steel wire web filter (two), 7: fluororubber sealing gasket (two), 8: stainless steel is body fixedly, 9: the vortex refrigerator, 10: lined ceramics film composite type pottery stopple coupon, 11: manual ball valve, 12: emission control.13: gas outlet, 14: go out the sample gas port, 15: advance the blowback steam port, 16: the entrance pressure air scoop that contracts, 17: the sample introduction gas port.18: ceramic membrane.
Embodiment
At first with stainless steel fixedly body 8 lump together with vortex refrigerator 9 soldering group, then stainless steel is popped one's head in top cover and stainless steel fixedly body 8 welding finish, ceramic membrane 18 and ceramic stopple coupon are with reference to figure two methods, adopt special gluing being connected together (will be convenient to raise after attention and ceramic pipe are outside bonding), form lined ceramics film composite type pottery stopple coupon, purpose is to be convenient to dismounting next time, and then with in its solid body 8 of packing into, the fluororubber sealing gasket (two) 7 of packing into successively, stainless steel wire web filter (two) 6, fluororubber sealing gasket (one) 5, stainless steel wire web filter () 4.When needs are changed, be reversed in this way and get final product, also can be with reference to shown in the figure two.
Owing to contain high viscosity, the easy crystallised components of low boiling such as tar, benzene, the bitter edible plant in the coke-oven gas, so when sample gas passes through the ceramic stopple coupon of the lined ceramics film under the built-in cold air effect, basically all understand crystallisation by cooling, bond on the ceramic membrane of inner pipe wall of ceramic pipe.When a loop ends, purge with high pressure steam, the crystalline solid on the inwall all will be blown off, and crystalline solid is easy to blow out from pipeline, and do not influence use next time of sampling probe.When probe does not use, manual ball valve 11 and manual ball valve 1 can be closed simultaneously.
Claims (3)
1. the invention provides a kind of device of continuous coke-oven gas sampling, the composition structure of this device mainly comprises two parts: the external compression air cooling control system that total system is freezed, and the sampling system that guarantees the serial sampling of inner ceramic Film sampling pipe.
2. according to claims 1 described device, external compression air cooling control system plays protection and refrigeration mainly based on pressurized air vortex refrigerator principle to whole sampling system.
3. device according to claim 1, inner sampling system adopts resistant to elevated temperatures composite ceramic Film sampling pipe, add the different stainless steel screen pack of two-stage filtration precision respectively in the outlet of sample gas simultaneously, wherein filtering accuracy is low is contained in the bottom, filtering accuracy is high is in the top, and all is added with the fluororubber pad in the ceramic membrane contact position with ceramic inner pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101558378A CN101387583A (en) | 2008-10-16 | 2008-10-16 | Apparatus for recovering and sampling coke oven gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101558378A CN101387583A (en) | 2008-10-16 | 2008-10-16 | Apparatus for recovering and sampling coke oven gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101387583A true CN101387583A (en) | 2009-03-18 |
Family
ID=40477128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101558378A Pending CN101387583A (en) | 2008-10-16 | 2008-10-16 | Apparatus for recovering and sampling coke oven gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101387583A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969093A (en) * | 2014-05-08 | 2014-08-06 | 李海涛 | Gas adsorption sampling device |
| CN111623896A (en) * | 2020-05-24 | 2020-09-04 | 西安交通大学 | Supercritical water on-line flow testing device |
-
2008
- 2008-10-16 CN CNA2008101558378A patent/CN101387583A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969093A (en) * | 2014-05-08 | 2014-08-06 | 李海涛 | Gas adsorption sampling device |
| CN111623896A (en) * | 2020-05-24 | 2020-09-04 | 西安交通大学 | Supercritical water on-line flow testing device |
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Open date: 20090318 |