CN203745436U - Chromatographic instrument sample introduction system for gas analysis - Google Patents
Chromatographic instrument sample introduction system for gas analysis Download PDFInfo
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- CN203745436U CN203745436U CN201420078419.4U CN201420078419U CN203745436U CN 203745436 U CN203745436 U CN 203745436U CN 201420078419 U CN201420078419 U CN 201420078419U CN 203745436 U CN203745436 U CN 203745436U
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- gas
- gas port
- port
- chromatographic column
- way valve
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Abstract
The utility model relates to a chromatographic instrument sample introduction system for gas analysis, belonging to the field of gas analysis devices. The chromatographic instrument sample introduction system comprises a sample introduction tube (16), a sample discharging tube (17), a first chromatographic column (14) and a second chromatographic column (15), and is characterized in that the whole gas analysis process can be completed through one-time sample introduction by a ten-way valve (2); the sample introduction tube (16) and the sample discharging tube (17) are communicated with a first quantifying tube (18) and a second quantifying tube (19) through the ten-way valve (2) so as to form a sample introduction pipeline; the first chromatographic column (14) and the second chromatographic column (15) are communicated with a first pressure gas pipe (1) and a second pressure gas pipe (13) through the ten-way valve (2) so as to form a gas separating pipeline. Through one ten-way valve, the purpose of completing whole gas analysis process through one-time sample introduction is realized, the operation is simple, the analysis time is shortened, the efficiency is improved, and analysis errors are reduced.
Description
Technical field
A kind of analysis chromatograph for gas sampling system, belongs to gas analysis arrangement field.
Background technology
At present, most analysis chromatograph for gas sampling system gas circuit is all to need four six-way valves to switch, sample introduction separates organic component and inorganic component at twice, and twice sample introduction just can complete once to be analyzed, quite loaded down with trivial details, and can not ensure measuring accuracy, specific practice is,, then connects with thermal conductivity detector (TCD) two Coupled columns by six-way valve, C2-C5 component in first separable gaseous sample of pillar, second separable H of pillar
2, O
2, N
2, CH
4+ CO, CH
4can not separate with CO, sample introduction is through the first root chromatogram column for the first time, the second velamen bypass, in sample, first light constituent is washed out as mixing peak, and then C2-C5 component separates outflow successively, for the second time two Coupled columns of sample introduction, after gas light constituent enters second pillar, rotate back-flushing valve, light constituent is separated in second pillar, stay first component in pillar by blowback to atmosphere.This kind of methods analyst speed is slow, loaded down with trivial details, must just can complete whole analyses through twice sample introduction, and efficiency is lower, and the composition of gas circuit is also more complicated.
Utility model content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide that a kind of analytical effect is high, single injected sampling can complete whole analyses, separate the analysis chromatograph for gas sampling system of organic and inorganic gas simultaneously.
The utility model solves the technical scheme that its technical matters adopts: this analysis chromatograph for gas sampling system, comprise sample feeding pipe, go out sample pipe, the first chromatographic column and the second chromatographic column, it is characterized in that: at described sample feeding pipe with go out between sample pipe ten-way valve is set, the first quantity tube and the second quantity tube form sample introduction pipeline by ten-way valve UNICOM, the first chromatographic column forms gas with the first tracheal pressure with the second tracheal pressure UNICOM by ten-way valve with the second chromatographic column and separates pipeline, described gas separates pipeline and is divided into organic gas gas circuit and inorganic gas gas circuit two parts, the first chromatographic column is inorganic gas output channel, connect with TCD detecting device, the second chromatographic column is organic gas output channel, connects with fid detector.This system only can be realized and be separated organic and inorganic gas component simultaneously by a ten-way valve, realizes single injected sampling and can complete the object of whole analyses.
Ten gas port UNICOMs between two of described ten-way valve, every two the adjacent one-sided connections of gas port of commutation by ten-way valve self form different gas circuits, the gas port UNICOM in each gas port and its left side forms sample introduction pipeline, and each gas port forms gas with the gas port UNICOM on its right side and separates pipeline.
Described sample introduction pipeline comprises successively sample feeding pipe, the first gas port, the tenth gas port, the first quantity tube, the 7th gas port, the 6th gas port, the second quantity tube, the 3rd gas port, the second gas port and goes out sample pipe according to gas flow, between the tenth gas port and the 7th gas port, be connected by the first quantity tube, between the 6th gas port and the 3rd gas port, be connected by the second quantity tube.In two quantity tubes, store respectively certain gaseous sample, the separation use that separates gas circuit to supply follow-up two-way.
Described gas separates pipeline and is divided into organic gas gas circuit and inorganic gas gas circuit, and inorganic gas gas circuit comprises the second tracheal pressure, the 5th gas port, the 6th gas port, the second quantity tube, the 3rd gas port, the 4th gas port and the first chromatographic column successively according to gas flow; Described organic gas gas circuit comprises the first tracheal pressure, the 8th gas port, the 7th gas port, the first quantity tube, the tenth gas port, the 9th gas port and the second chromatographic column successively according to gas flow.
The concrete operation method of above-mentioned gas analytical chromatograph sampling system, comprises the following steps:
1, first, by sample feeding pipe to sample introduction in ten-way valve, now, the gas port UNICOM in each gas port of ten-way valve and its left side forms sample introduction pipeline, first gaseous sample enters ten-way valve by sample feeding pipe by the first gas port, then flow through successively order UNICOM the tenth gas port, the first quantity tube, the 7th gas port, the 6th gas port, the second quantity tube, the 3rd gas port and the second gas port, in the first quantity tube and the second quantity tube, store respectively a certain amount of gaseous sample, gaseous sample finally by the second gas port by joining with it go out sample pipe discharge;
2, rotate ten-way valve, the position of ten gas ports of ten-way valve rotates, and meanwhile, each gas port is closed the UNICOM with the gas port in left side, forms two-way gas separator tube road with the gas port UNICOM on its right side;
3, separate with the gaseous sample in the second quantity tube being stored in the first quantity tube by two-way gas separator tube road, by the first tracheal pressure and the second tracheal pressure simultaneously to passing into pressure air in ten-way valve, the pressure of the first tracheal pressure is separated the organic gas composition in gaseous sample from the first quantity tube, and eight gas port of sequential flow through being connected, the 7th gas port, the first quantity tube, the tenth gas port, the 9th gas port and the second chromatographic column, finally by the second chromatographic column, the organic gas component in the first quantity tube is flowed to fid detector, carry out the detection of organic gas,
4, simultaneously, the pressure of the second tracheal pressure is separated the inorganic gas composition in gaseous sample from the second quantity tube, and sequential flow is through the 5th gas port, the 6th gas port, the second quantity tube, the 3rd gas port, the 4th gas port and the first chromatographic column, finally by the first chromatographic column, the inorganic component in the second quantity tube is flowed to TCD detecting device, carry out inorganic gas detection.
Compared with prior art, the beneficial effect that the utility model has is:
1, designs simplification, simple to operate: the multiple six-way valves before only replacing by a ten-way valve, simplify gas circuit structure, realize the analysis that single injected sampling can complete whole components, simple to operate, only need single injected sampling, farthest reduce sample introduction error, improved precision of analysis, for technological operation provides analysis data more in time more reliably.
2, separate simultaneously, analysis speed is effective fast: two-way gas separation gas road can be carried out simultaneously, organic gas and inorganic gas are separated simultaneously, shorten greatly sample analysis time, improve work efficiency, fast and easy, and good separation analysis speed is fast, analysis result accuracy is high, more can adapt to the demand of high-speed production.
Brief description of the drawings
Fig. 1 is the utility model annexation schematic diagram.
Wherein: 1, the first tracheal pressure 2, ten-way valve 3, the first gas port 4, the second gas port 5, the 3rd gas port 6, the 4th gas port 7, the 5th gas port 8, the 6th gas port 9, the 7th gas port 10, the 8th gas port 11, the 9th gas port 12, the tenth gas port 13, the second tracheal pressure 14, the first chromatographic column 15, the second chromatographic column 16, sample feeding pipe 17, go out sample pipe 18, the first quantity tube 19, the second quantity tube.
Embodiment
Fig. 1 is most preferred embodiment of the present utility model, below in conjunction with accompanying drawing 1, the utility model is described further.
With reference to accompanying drawing 1: this kind of analysis chromatograph for gas sampling system, mainly comprise sample feeding pipe 16, go out sample pipe 17, ten-way valve 2, realize single injected sampling and can complete all gas analysis by a ten-way valve 2 is set, sample feeding pipe 16, go out sample pipe 17, the first chromatographic column 14 and the second chromatographic column 15 are all connected with the corresponding gas port of ten-way valve 2, sample feeding pipe 16 and go out sample pipe 17 by ten-way valve 2 and the first quantity tube 18 and second quantity tube 19 UNICOMs' formation sample introduction pipelines, the first chromatographic column 14 forms gas with the first tracheal pressure 1 with the second tracheal pressure 13 UNICOMs by ten-way valve 2 with the second chromatographic column 15 and separates pipeline, the first chromatographic column 14 is inorganic gas output channel, one end is connected with the second tracheal pressure 13 by ten-way valve 2, the other end connects with TCD detecting device, carry out the detection of inorganic gas, the second chromatographic column 15 is organic gas output channel, and one end is connected with the first tracheal pressure 1 by ten-way valve 2, and the other end connects with fid detector, carries out the detection of organic gas.
Ten-way valve 2 is provided with ten gas ports, ten gas port UNICOMs between two, every two the adjacent one-sided connections of gas port of commutation by ten-way valve 2 self form different gas circuits, and each gas port forms sample introduction pipeline with the gas port UNICOM in its left side, separate pipeline with the gas port UNICOM formation gas on its right side.
The first gas port 3 is fixedly connected with sample feeding pipe 16, the second gas port 4 with go out sample pipe 17 and be fixedly connected, the first quantity tube 18 be fixedly connected the 7th gas port 9 and the tenth gas port 12, the second quantity tube 19 be fixedly connected the 3rd gas port 5 and the 6th gas port 8, the first chromatographic column 14 the 4th gas port 6 that is fixedly connected, the second chromatographic column 15 the 9th gas port 11, the first tracheal pressures 1 the 8th gas port 10, the second tracheal pressures 13 the 5th gas port 7 that is fixedly connected that is fixedly connected that is fixedly connected.
Sample introduction pipeline comprises successively sample feeding pipe 16, the first gas port 3, the tenth gas port 12, the first quantity tube 18, the 7th gas port 9, the 6th gas port 8, the second quantity tube 19, the 3rd gas port 5, the second gas port 4 and goes out sample pipe 17 according to gas flow, between the tenth gas port 12 and the 7th gas port 9, be connected by the first quantity tube 18, between the 6th gas port 8 and the 3rd gas port 5, be connected by the second quantity tube 19, now, the first gas port 3 is as injection port, and the second gas port 4 is as outlet.
Gas separates pipeline and is divided into two-way, one tunnel is organic gas gas circuit, another road is inorganic gas gas circuit, comprise successively the second tracheal pressure 13, the 5th gas port 7, the 6th gas port 8, the second quantity tube 19, the 3rd gas port 5, the 4th gas port 6 and the first chromatographic column 14 according to gas flow inorganic gas gas circuit, inorganic gas, after separating, flows to TCD detecting device by the first chromatographic column 14 and detects; Organic gas gas circuit comprises the first tracheal pressure 1, the 8th gas port 10, the 7th gas port 9, the first quantity tube 18, the tenth gas port 12, the 9th gas port 11 and the second chromatographic column 15 successively according to gas flow, organic gas is after separating, flow to fid detector by the second chromatographic column 15, carry out the detection of organic gas.
The course of work is as follows:
1, first, by sample feeding pipe 16 to sample introduction in ten-way valve 2, now, the gas port UNICOM in each gas port of ten-way valve 2 and its left side forms sample introduction pipeline, first by the mode of Manual pressurizing, gaseous sample is pressed into the first gas port 3 of ten-way valve 2 by sample feeding pipe 16, first gaseous sample enters ten-way valve 2 by sample feeding pipe 16 by the first gas port 3, then flow through successively order UNICOM the tenth gas port 12, the first quantity tube 18, the 7th gas port 9, the 6th gas port 8, the second quantity tube 19, the 3rd gas port 5 and the second gas port 4, in the first quantity tube 18 and the second quantity tube 19, store respectively a certain amount of gaseous sample, gaseous sample finally by the second gas port 4 by joining with it go out sample pipe 17 discharge,
2, rotate ten-way valve 2, the position of ten gas ports of ten-way valve 2 rotates, and meanwhile, each gas port is closed the UNICOM with the gas port in left side, forms two-way gas separator tube road with the gas port UNICOM on its right side;
3, separate with the gaseous sample in the second quantity tube 19 being stored in the first quantity tube 18 by two-way gas separator tube road, by the first tracheal pressure 1 and the second tracheal pressure 13 simultaneously to passing into pressure air in ten-way valve 2, the pressure of the first tracheal pressure 1 is separated the organic gas composition in gaseous sample from the first quantity tube 18, and eight gas port 10 of sequential flow through being connected, the 7th gas port 9, the first quantity tube 18, the tenth gas port 12, the 9th gas port 11 and the second chromatographic column 15, finally by the second chromatographic column 15, the organic gas component in the first quantity tube 18 is flowed to fid detector, carry out the detection of organic gas,
4, simultaneously, the pressure of the second tracheal pressure 13 is separated the inorganic gas composition in gaseous sample from the second quantity tube 19, and sequential flow is through the 5th gas port 7, the 6th gas port 8, the second quantity tube 19, the 3rd gas port 5, the 4th gas port 6 and the first chromatographic column 14, finally by the first chromatographic column 14, the inorganic component in the second quantity tube 19 is flowed to TCD detecting device, carry out inorganic gas detection.
The above, it is only preferred embodiment of the present utility model, be not the restriction of the utility model being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not depart from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (4)
1. an analysis chromatograph for gas sampling system, comprise sample feeding pipe (16), go out sample pipe (17), the first chromatographic column (14) and the second chromatographic column (15), it is characterized in that: at described sample feeding pipe (16) with go out ten-way valve (2) is set between sample pipe (17), the first quantity tube (18) and the second quantity tube (19) form sample introduction pipeline by ten-way valve (2) UNICOM, the first chromatographic column (14) forms gas with the first tracheal pressure (1) with the second tracheal pressure (13) UNICOM by ten-way valve (2) with the second chromatographic column (15) and separates pipeline, described gas separates pipeline and is divided into organic gas gas circuit and inorganic gas gas circuit two parts, the first chromatographic column (14) is inorganic gas output channel, connect with TCD detecting device, the second chromatographic column (15) is organic gas output channel, connects with fid detector.
2. a kind of analysis chromatograph for gas sampling system according to claim 1, it is characterized in that: ten gas port UNICOMs between two of described ten-way valve (2), every two the adjacent one-sided connections of gas port of commutation by ten-way valve (2) self form different gas circuits, the gas port UNICOM in each gas port and its left side forms sample introduction pipeline, and each gas port forms gas with the gas port UNICOM on its right side and separates pipeline.
3. according to a kind of analysis chromatograph for gas sampling system described in claim 1 or 2 any one, it is characterized in that: described sample introduction pipeline comprises sample feeding pipe (16) successively according to gas flow, the first gas port (3), the tenth gas port (12), the first quantity tube (18), the 7th gas port (9), the 6th gas port (8), the second quantity tube (19), the 3rd gas port (5), the second gas port (4) and go out sample pipe (17), between the tenth gas port (12) and the 7th gas port (9), be connected by the first quantity tube (18), between the 6th gas port (8) and the 3rd gas port (5), be connected by the second quantity tube (19).
4. a kind of analysis chromatograph for gas sampling system according to claim 1, is characterized in that: described inorganic gas gas circuit comprises the second tracheal pressure (13), the 5th gas port (7), the 6th gas port (8), the second quantity tube (19), the 3rd gas port (5), the 4th gas port (6) and the first chromatographic column (14) successively according to gas flow; Described organic gas gas circuit comprises the first tracheal pressure (1), the 8th gas port (10), the 7th gas port (9), the first quantity tube (18), the tenth gas port (12), the 9th gas port (11) and the second chromatographic column (15) successively according to gas flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420078419.4U CN203745436U (en) | 2014-02-22 | 2014-02-22 | Chromatographic instrument sample introduction system for gas analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420078419.4U CN203745436U (en) | 2014-02-22 | 2014-02-22 | Chromatographic instrument sample introduction system for gas analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203745436U true CN203745436U (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420078419.4U Expired - Fee Related CN203745436U (en) | 2014-02-22 | 2014-02-22 | Chromatographic instrument sample introduction system for gas analysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203745436U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771305A (en) * | 2017-01-20 | 2017-05-31 | 浙江赛鹭鑫仪器有限公司 | A kind of gas automatic sampling device |
| CN115326967A (en) * | 2022-08-16 | 2022-11-11 | 成都蓝湖科技有限公司 | Sample pretreatment system for on-line chromatographic analyzer for measuring natural gas components |
-
2014
- 2014-02-22 CN CN201420078419.4U patent/CN203745436U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771305A (en) * | 2017-01-20 | 2017-05-31 | 浙江赛鹭鑫仪器有限公司 | A kind of gas automatic sampling device |
| CN115326967A (en) * | 2022-08-16 | 2022-11-11 | 成都蓝湖科技有限公司 | Sample pretreatment system for on-line chromatographic analyzer for measuring natural gas components |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20180222 |
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| CF01 | Termination of patent right due to non-payment of annual fee |