CN203745437U - Separation and analysis device for light components in coal-bed methane - Google Patents
Separation and analysis device for light components in coal-bed methane Download PDFInfo
- Publication number
- CN203745437U CN203745437U CN201420140629.1U CN201420140629U CN203745437U CN 203745437 U CN203745437 U CN 203745437U CN 201420140629 U CN201420140629 U CN 201420140629U CN 203745437 U CN203745437 U CN 203745437U
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- way valve
- valve
- coal
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- 238000004458 analytical method Methods 0.000 title claims abstract description 21
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract description 18
- 238000000926 separation method Methods 0.000 title abstract description 5
- 239000007789 gas Substances 0.000 claims abstract description 22
- 239000002808 molecular sieve Substances 0.000 claims abstract description 15
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000004587 chromatography analysis Methods 0.000 claims description 14
- 239000000470 constituent Substances 0.000 claims description 11
- 239000012159 carrier gas Substances 0.000 claims description 9
- 241000628997 Flos Species 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 8
- 239000001569 carbon dioxide Substances 0.000 abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 abstract description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract description 4
- 229930195733 hydrocarbon Natural products 0.000 abstract description 4
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 4
- 238000013016 damping Methods 0.000 abstract 2
- 239000005977 Ethylene Substances 0.000 abstract 1
- 229940117927 ethylene oxide Drugs 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000010926 purge Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Abstract
The utility model discloses a separation and analysis device for light components in coal-bed methane. The separation and analysis device controls the light components such as oxygen, nitrogen, methane, ethane, ethylene and carbon dioxide in the coal-bed methane through a ten-way valve, a six-way valve, two chromatographic columns, a damping valve, a TCD (thermal conductivity detector) and a back flushing control valve. The separation and analysis device has the benefits that the light components in the coal-bed methane are analyzed in one-step sample injection, so that analysis errors are effectively reduced; in an analysis process, the components such as water and the carbon dioxide cannot enter the 5A molecular sieve chromatographic column; the water and hydrocarbons C3-C6 are back flushed into the haysepQ chromatographic column in the analysis process, so that the service life of the chromatographic columns is prolonged; the damping valve is adopted to adjust resistance of a gas path, and the fluctuation, which is generated by valve state switching, of a base line of the TCD is eliminated.
Description
Technical field
The utility model relates to light constituent field of analytic instrument in coal-seam gas, particularly relates to light constituent compartment analysis device in a kind of coal-seam gas.
Background technology
In recent years, gas utilization development is very fast, light constituent analysis in coal-seam gas extensively adopts gas chromatograph to carry out, its shortcoming is that sub-sampling analysis causes analytical error large, and in analysis process, moisture, the carbon dioxide of sample coal-seam gas can enter 5A molecular sieve chromatography post and cause chromatographic column short serviceable life.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides light constituent compartment analysis device in a kind of coal-seam gas.
The utility model is achieved through the following technical solutions: light constituent compartment analysis device in a kind of coal-seam gas, comprise hayesep Q chromatographic column, 5A molecular sieve chromatography post, TCD detecting device, ten-way valve, six-way valve and orifice valve, described ten-way valve port 2 connects floss hole emptying, port 3 accesses sample, between port 4 and port one, be connected quantity tube, between port 5 and port 9, be connected hayesep Q chromatographic column, port 6 connects blowback flowrate control valve, port one 0 accesses carrier gas with port 7, port 8 connects the port 5 of six-way valve, described six-way valve port 2 connects TCD detecting device, between port one and port 6, be connected 5A molecular sieve chromatography post, between port 3 and port 4, be connected orifice valve, described ten-way valve closed condition is that port one is communicated with port 2, port 3 is communicated with port 4, port 5 is communicated with port 6, port 7 is communicated with port 8, and port 9 is communicated with port one 0, and described ten-way valve opening is that port 2 is communicated with port 3, port one is communicated with port one 0, port 4 is communicated with port 5, and port 6 is communicated with port 7, and port 8 is communicated with port 9, described six-way valve closed condition is that port one is communicated with port 6, and port 2 is communicated with port 3, and port 4 is communicated with port 5, and described six-way valve opening is that port one is communicated with port 2, and port 3 is communicated with port 4, and port 5 is communicated with port 6.
Compared with prior art, the beneficial effects of the utility model are: single injected sampling is analyzed light constituent oxygen, nitrogen, methane, carbon dioxide, ethane, the ethene in coal-seam gas, effectively reduce analytical error, in analytic process, the component such as moisture, carbon dioxide does not enter 5A molecular sieve chromatography post, water, C3-C6 hydro carbons are gone out haysepQ chromatographic column by blowback in analytic process, improve the serviceable life of chromatographic column, adopt orifice valve to regulate gas circuit resistance, eliminated the TCD detecting device baseline fluctuation producing when valve state switches.
Brief description of the drawings
Fig. 1 is the utility model ten-way valve closed condition used schematic diagram.
Fig. 2 is the utility model ten-way valve opening used schematic diagram.
Fig. 3 is the utility model six-way valve closed condition used schematic diagram.
Fig. 4 is the utility model six-way valve opening used schematic diagram.
Fig. 5 is ten-way valve schematic flow sheet of the present utility model while closing with six-way valve closed condition.
Schematic flow sheet of the present utility model when Fig. 6 is ten-way valve unlatching and six-way valve opening.
Schematic flow sheet of the present utility model when Fig. 7 is ten-way valve unlatching and six-way valve closed condition.
Fig. 8 is ten-way valve schematic flow sheet of the present utility model while closing with six-way valve opening.
In figure: ten-way valve indicates with valve 1, six-way valve indicates with valve 2, and blowback flowrate control valve indicates with valve 3, and orifice valve indicates with valve 4, and carrier gas indicates with A, and quantity tube indicates with B, and hayesep Q chromatographic column indicates with C, and 5A molecular sieve chromatography post indicates with D.
Embodiment
In order more clearly to understand the technical solution of the utility model, below in conjunction with accompanying drawing, the utility model is further illustrated.
Light constituent compartment analysis device in a kind of coal-seam gas as shown in the figure, comprise hayesep Q chromatographic column C, 5A molecular sieve chromatography post D, TCD detecting device, ten-way valve valve 1, six-way valve valve 2 and orifice valve valve 4, described ten-way valve valve 1 port 2 connects floss hole emptying, port 3 accesses sample, between port 4 and port one, be connected quantity tube B, between port 5 and port 9, be connected hayesep Q chromatographic column C, port 6 connects blowback flowrate control valve valve 3, port one 0 accesses carrier gas with port 7, port 8 connects the port 5 of six-way valve, described six-way valve valve 2 ports 2 connect TCD detecting device, between port one and port 6, be connected 5A molecular sieve chromatography post D, between port 3 and port 4, be connected orifice valve valve 4, described ten-way valve valve 1 closed condition is that port one is communicated with port 2, port 3 is communicated with port 4, port 5 is communicated with port 6, port 7 is communicated with port 8, and port 9 is communicated with port one 0, and described ten-way valve valve 1 opening is that port 2 is communicated with port 3, port one is communicated with port one 0, port 4 is communicated with port 5, and port 6 is communicated with port 7, and port 8 is communicated with port 9, described six-way valve valve 2 closed conditions are that port one is communicated with port 6, and port 2 is communicated with port 3, and port 4 is communicated with port 5, and described six-way valve valve 2 openings are that port one is communicated with port 2, and port 3 is communicated with port 4, and port 5 is communicated with port 6.
As shown in Figure 5, in coal-seam gas, light constituent compartment analysis device purges state in sample, in ten-way valve valve 1, sample discharges emptying from port 3 to 4 by quantity tube B to port 2, analyze and start rear ten-way valve valve 1 state that switches for opening, six-way valve valve 2 states are for opening, now analysis process as shown in Figure 6, coal-seam gas sample in quantity tube B enters in hayesep Q chromatographic column C under carrier gas A promotes, carrier gas A is hydrogen or helium, when the oxygen in coal-seam gas sample, nitrogen, after methane enters in 5A molecular sieve chromatography post D completely, switch immediately the state of a control of six-way valve valve 2 by chromatogram control program for closing, now analysis process as shown in Figure 7, oxygen in coal-seam gas sample, nitrogen, methane is enclosed in 5A molecular sieve chromatography post D, ethane in coal-seam gas sample, ethene, carbon dioxide component continues to be separated by orifice valve valve 4 and entered the detection of TCD detecting device by hayesep Q chromatographic column C under carrier gas A promotes.Orifice valve valve 4 is for balance resistance, and while avoiding six-way valve valve 2 to switch, the gas carrier velocity variations that enters TCD detecting device causes the baseline fluctuation of TCD detecting device.Hayesep Q chromatographic column C and 5A molecular sieve chromatography post D realize the separation between each component by the adsorptive power of each component in sample is varied in size.The ethane separating in hayesep Q chromatographic column C, ethene, after carbon dioxide component enters the detection of TCD detecting device successively, switch ten-way valve valve 1 state for closing, switch six-way valve valve 2 states for opening, now analysis process as shown in Figure 8, under promoting, carrier gas A do not flow out component water in blowback hayesep Q chromatographic column C, C3 to C6 hydrocarbon component is also disposed to atmosphere by blowback flowrate control valve valve 3, carrier gas A promotes the oxygen sealing in 5A molecular sieve chromatography post D, nitrogen, methane component enters TCD detecting device and detects after separating, it is closed condition that detection finishes rear switching six-way valve valve 2, again become sample purging state and wait for as shown in Figure 5 analysis next time.
The utility model adopts single injected sampling to analyze the light constituent in coal-seam gas, effectively reduce analytical error, in analytic process, the component such as moisture, carbon dioxide does not enter 5A molecular sieve chromatography post D, water, C3-C6 hydro carbons are gone out haysepQ chromatographic column C by blowback in analytic process, improve the serviceable life of chromatographic column, adopt orifice valve valve 4 to regulate gas circuit resistance, eliminated the TCD detecting device baseline fluctuation producing when valve state switches.
The above is only preferred embodiments of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (1)
1. light constituent compartment analysis device in a coal-seam gas, it is characterized in that: comprise hayesep Q chromatographic column, 5A molecular sieve chromatography post, TCD detecting device, ten-way valve, six-way valve and orifice valve, described ten-way valve port 2 connects floss hole emptying, port 3 accesses sample, between port 4 and port one, be connected quantity tube, between port 5 and port 9, be connected hayesep Q chromatographic column, port 6 connects blowback flowrate control valve, port one 0 accesses carrier gas with port 7, port 8 connects the port 5 of six-way valve, described six-way valve port 2 connects TCD detecting device, between port one and port 6, be connected 5A molecular sieve chromatography post, between port 3 and port 4, be connected orifice valve, described ten-way valve closed condition is that port one is communicated with port 2, port 3 is communicated with port 4, port 5 is communicated with port 6, port 7 is communicated with port 8, and port 9 is communicated with port one 0, and described ten-way valve opening is that port 2 is communicated with port 3, port one is communicated with port one 0, port 4 is communicated with port 5, and port 6 is communicated with port 7, and port 8 is communicated with port 9, described six-way valve closed condition is that port one is communicated with port 6, and port 2 is communicated with port 3, and port 4 is communicated with port 5, and described six-way valve opening is that port one is communicated with port 2, and port 3 is communicated with port 4, and port 5 is communicated with port 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420140629.1U CN203745437U (en) | 2014-03-27 | 2014-03-27 | Separation and analysis device for light components in coal-bed methane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420140629.1U CN203745437U (en) | 2014-03-27 | 2014-03-27 | Separation and analysis device for light components in coal-bed methane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203745437U true CN203745437U (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420140629.1U Expired - Lifetime CN203745437U (en) | 2014-03-27 | 2014-03-27 | Separation and analysis device for light components in coal-bed methane |
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| CN (1) | CN203745437U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297391A (en) * | 2014-10-23 | 2015-01-21 | 佛山市南海区环境保护监测站 | Chromatographic analysis system |
| CN109884229A (en) * | 2019-04-09 | 2019-06-14 | 重庆市计量质量检测研究院 | Impurity composition chromatographic analysis device and its detection method in food-grade carbon-dioxide |
| CN112881342A (en) * | 2021-01-12 | 2021-06-01 | 中国地质大学（北京） | On-spot coal seam carbon dioxide source identification system |
-
2014
- 2014-03-27 CN CN201420140629.1U patent/CN203745437U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297391A (en) * | 2014-10-23 | 2015-01-21 | 佛山市南海区环境保护监测站 | Chromatographic analysis system |
| CN109884229A (en) * | 2019-04-09 | 2019-06-14 | 重庆市计量质量检测研究院 | Impurity composition chromatographic analysis device and its detection method in food-grade carbon-dioxide |
| CN109884229B (en) * | 2019-04-09 | 2023-12-15 | 重庆市计量质量检测研究院 | Chromatographic analysis device for impurity components in food-grade carbon dioxide and detection method thereof |
| CN112881342A (en) * | 2021-01-12 | 2021-06-01 | 中国地质大学（北京） | On-spot coal seam carbon dioxide source identification system |
| CN112881342B (en) * | 2021-01-12 | 2022-04-26 | 中国地质大学（北京） | On-spot coal seam carbon dioxide source identification system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |