CN203037630U - Sample injection system of gas chromatograph - Google Patents
Sample injection system of gas chromatograph Download PDFInfo
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- CN203037630U CN203037630U CN 201220663436 CN201220663436U CN203037630U CN 203037630 U CN203037630 U CN 203037630U CN 201220663436 CN201220663436 CN 201220663436 CN 201220663436 U CN201220663436 U CN 201220663436U CN 203037630 U CN203037630 U CN 203037630U
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- 238000002347 injection Methods 0.000 title abstract description 15
- 239000007924 injection Substances 0.000 title abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 254
- 239000012159 carrier gas Substances 0.000 claims abstract description 67
- 238000005070 sampling Methods 0.000 claims description 41
- 230000005693 optoelectronics Effects 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 abstract description 8
- 239000000523 sample Substances 0.000 description 227
- 230000000875 corresponding effect Effects 0.000 description 21
- 238000000034 method Methods 0.000 description 18
- 238000010586 diagram Methods 0.000 description 7
- 238000000354 decomposition reaction Methods 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 4
- 239000013068 control sample Substances 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a sample injection system of a gas chromatograph. The sample injection system comprises a control system, a reversing device, a sample injection port, a tail gas port, carrier gas ports, quantitative ring sets, and chromatographic columns, and one carrier gas port, one quantitative ring set and one chromatographic column form a sample injection gas path. When tested samples are about to be injected, gas incoming passages are formed by connecting the sample injection port, the quantitative ring sets and the tail gas port through the reversing device to allow the tested samples to pass through the gas incoming passages and to be injected into all quantitative ring sets; when the tested samples are analyzed, the tested samples in the quantitative ring sets in each sample injection gas path are injected into the chromatographic columns through the carrier gas port for analysis. The sample injection system of the gas chromatograph guarantees simultaneity and accuracy in sample injection of the tested samples, solves the problem of manual interference factors existing in manual sample injection or in the mode of respective two-way sample injection, and further improves accuracy and reliability of data of the tested samples tested by the gas chromatograph.
Description
Technical field
The application relates to electric system on-line monitoring technique field, in particular, relates to a kind of gas chromatograph sampling system.
Background technology
Gas insulated combined electrical equipment is one of visual plant in the electric system, and is widely used in the transformer substation construction of city, if in a single day it break down, will bring about great losses.Yet; in manufacturing, assembling and operational process; some latency insulation defects that stay usually can cause the inner shelf depreciation that produces in various degree of gas insulated combined electrical equipment; the active gases that shelf depreciation produces can accelerate insulation ag(e)ing and corrosion again, causes that finally gas insulated combined electrical equipment breaks down.Therefore, the shelf depreciation of gas insulated combined electrical equipment inside is accurately judged and eliminating in time, guaranteed the safe and reliable operation of gas insulated combined electrical equipment, become the vital task in the electric system.
SF
6Gas is main arc extinguishing and the insulating medium of gas insulated combined electrical equipment inside, stable chemical performance under the normal temperature and pressure, but when the inner generation of gas insulated combined electrical equipment shelf depreciation, can produce multiple stable decomposition gas, and as: HF, SOF
4, SOF
2, SF
6, S
2F
2, SO
2F
2, S
2F
10And SO
2By detecting and analyzing these decomposition gases, can realize detection and diagnosis to gas insulated combined electrical equipment.
At present, the method that in the prior art decomposition gas is detected and analyzes is to realize by the gas chromatograph that utilizes the parallel running of polychromatic spectrum post.The gas chromatograph of polychromatic spectrum post parallel running adopts the mode with sample difference sample introduction, sample is injected respectively from different sample introduction interfaces, different decomposition gas in the sample is separated, detects, analyzes, by determining the relative content of different decomposition gas, effectively realize detection and the diagnosis of gas insulated combined electrical equipment.Yet, because this mode that sample is injected respectively from different sample introduction interfaces can not guarantee repeatedly to inject the process of sample, the time of injecting sample is identical, the concentration of injecting sample is identical and in full accord in injection process operating personnel's operation, there is not error etc., because gas chromatograph is very accurate instrument, some little errors all can influence last testing result again.Therefore, the gas chromatograph of polychromatic spectrum post parallel running adopts the mode with sample difference sample introduction, and it is low to cause detecting data accuracy, the problem that error rate is high.
The utility model content
At the problems referred to above, the application provides a kind of gas chromatograph sampling system, adopts the mode of sample being distinguished sample introduction with the gas chromatograph that solves polychromatic spectrum post parallel running in the prior art, and it is low to cause detecting data accuracy, the problem that error rate is high.Technical scheme is as follows:
The application provides a kind of gas chromatograph sampling system, comprising: control system, reversing arrangement, sample introduction interface, tail gas interface, carrier gas interface, quantitative ring group and chromatographic column, wherein,
The number of described carrier gas interface, described quantitative ring group and described chromatographic column is identical, and described quantitative ring group comprises at least one quantitative ring;
A described carrier gas interface, a described quantitative ring group and a described chromatographic column constitute a sample introduction gas circuit, and the quantitative ring group in the described sample introduction gas circuit comprises two interfaces;
Described control system is used for the described reversing arrangement of control when sample is waited to inject or when sample injects, an interface of the quantitative ring group in the described sample introduction gas circuit of described sample introduction interface and first is connected, another interface of quantitative ring group in first described sample introduction gas circuit connects an interface of the quantitative ring group in the described sample introduction gas circuit adjacent with this sample introduction gas circuit, and another interface of the quantitative ring group in last described sample introduction gas circuit is connected with described tail gas interface;
Described control system is used for the described reversing arrangement of control when sample is analyzed, described sample introduction interface is connected with described tail gas interface, carrier gas interface in described each sample introduction gas circuit is connected with interface of quantitative ring group in being in identical sample introduction gas circuit, be in the identical sample introduction gas circuit chromatographic column be in identical sample introduction gas circuit in another interface connection of quantitative ring group.
Preferably, described quantitative ring group comprises two or more quantitatively rings,
Quantitative ring in the described quantitative ring group is linked in sequence between described two interfaces.
Preferably, two the every adjacent quantitative rings in the described quantitative ring group are realized connecting by external pipe.
Preferably, described reversing arrangement comprises the plane multiport valve, the number of all external connection interface section is 4 times of described carrier gas interface numbers and 2 quantity that add and draw in the multiport valve of described plane, and in the multiport valve of described plane all external connection interface section respectively with described gas chromatograph sampling system in sample introduction interface, tail gas interface, different carrier gas interface, different quantitative ring group be connected with different chromatographic column.
Preferably, described reversing arrangement is provided with a plurality of inner connecting interfaces and a plurality of external connection interface section, and the number of a plurality of inner connecting interfaces on the described reversing arrangement is identical with the number of a plurality of external connection interface section, and described system also comprises:
Be connected whether correct optoelectronic switch with a plurality of external connection interface section for detection of a plurality of inner connecting interface of described reversing arrangement.
Preferably, described reversing arrangement is provided with a code-disc, described code-disc is provided with a plurality of pilot holes, and the number of the inside connecting interface in the number of the pilot hole on the described code-disc and the described reversing arrangement is identical, and the pilot hole on the described code-disc is corresponding one by one with inside connecting interface in the described reversing arrangement
Whether one to one described optoelectronic switch is specially for detection of the interface of the pilot hole on the described code-disc and described reversing arrangement optoelectronic switch.
Preferably, described plane multiport valve is the plane ten-way valve, described gas chromatograph sampling system comprises: control system, a sample introduction interface, a tail gas interface, two described carrier gas interfaces, two described quantitative ring groups and two described chromatographic columns, wherein, a described quantitative ring group comprises two interfaces, comprises a quantitatively ring between described two interfaces;
A described carrier gas interface, a described chromatographic column become the first sample introduction gas circuit with a described quantitative ring fabric, and another described carrier gas interface, another described chromatographic column and another described quantitative ring fabric become the second sample introduction gas circuit;
Described control system is used for the described plane of control ten-way valve when sample is waited to inject or when sample injects, interface of quantitative ring group in the described first sample introduction gas circuit is connected with described sample introduction interface, another interface of quantitative ring group in another interface of quantitative ring group in the described first sample introduction gas circuit and the described second sample introduction gas circuit is connected, an interface of the quantitative ring group in the described second sample introduction gas circuit is connected with described tail gas interface, carrier gas interface in the described first sample introduction gas circuit is connected with chromatographic column in the described first sample introduction gas circuit, and the carrier gas interface in the described second sample introduction gas circuit is connected with chromatographic column in the described second sample introduction gas circuit;
Described control system is used for the described plane of control ten-way valve when sample is analyzed, described sample introduction interface is connected with described tail gas interface, interface of the quantitative ring group in the described first sample introduction gas circuit is connected with carrier gas interface in the described first sample introduction gas circuit, another interface of quantitative ring group in the described first sample introduction gas circuit is connected with chromatographic column in the described first sample introduction gas circuit, interface of the quantitative ring group in the described second sample introduction gas circuit is connected with carrier gas interface in the described second sample introduction gas circuit, another interface of the quantitative ring group in the described second sample introduction gas circuit is connected with chromatographic column in the described second sample introduction gas circuit.
Use technique scheme, the gas chromatograph sampling system that the application provides is when sample is waited to inject or when sample injects, by reversing arrangement sample introduction interface, all quantitative ring groups are connected with the tail gas interface, constitute intake channel, make sample pass through the order of sample introduction interface, all quantitative ring groups, tail gas interface, be injected into simultaneously in all quantitative ring groups; The gas chromatograph sampling system will be in sample in the quantitative ring group in the identical sample introduction gas circuit by the carrier gas interface in each sample introduction gas circuit and be injected in the chromatographic column that is in the identical sample introduction gas circuit and analyze when sample is analyzed.The gas chromatograph sampling system that the application provides has guaranteed simultaneity and the accuracy of sample sample introduction, get rid of artificial sample introduction or the two-way problem of the artificial disturbing factor of input mode existence respectively, further improved accuracy and the reliability of gas chromatograph detection sample data.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present application, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiment of the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The control flow chart of a kind of gas chromatograph sampling system that Fig. 1 provides for the application;
The interface synoptic diagram of a kind of gas chromatograph sampling system that Fig. 2 provides for the application;
A kind of partial elevation view of a kind of gas chromatograph sampling system that Fig. 3 provides for the application;
The structural representation of the plane ten-way valve in a kind of gas chromatograph sampling system that Fig. 4 provides for the application;
The workflow synoptic diagram of a kind of gas chromatograph sampling system that Fig. 5 provides for the application;
The another kind of workflow synoptic diagram of a kind of gas chromatograph sampling system that Fig. 6 provides for the application;
The another kind of partial elevation view of a kind of gas chromatograph sampling system that Fig. 7 provides for the application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the application's protection.
One of main thought of the application can comprise: utilize the injection channel that changes sample, sample is inputed in all quantitative ring groups simultaneously by a sample introduction interface.Enter sample after the analysis phase at gas chromatograph, again by changing the circulation passage of sample, utilize extraneous input carrier gas with each self-quantitatively the sample in the ring group be injected into separately in the corresponding chromatographic column, thereby realize analysis to sample.
An embodiment
Please be simultaneously referring to Fig. 1 and Fig. 2, Fig. 1 shows the control flow chart of a kind of gas chromatograph sampling system that the application provides, and Fig. 2 shows the interface synoptic diagram of a kind of gas chromatograph sampling system that the application provides.Comprise among Fig. 1: control system 100 and reversing arrangement 200.
In the present embodiment, control system 100 can be integrated on the mutual system software of a personal-machine, and the user directly controls the duty of gas chromatograph sampling system by the operating platform of this man-machine interactive system.For example, at the interface of operating platform corresponding action button is set, the operation information that each button is corresponding different is as sample feeding, sample analysis etc.The user clicks corresponding button, and control system 100 receives the operation information of this button, and this operation information is converted into a control command, is sent to reversing arrangement 200.
The control command that reversing arrangement 200 receiving control systems 100 send, and according to this control command begin the action, realize sample introduction interface 300, tail gas interface 400, carrier gas interface 500, quantitative ring group 600 in the synoptic diagram shown in Figure 2 are connected according to different concatenate rules with chromatographic column 700, wherein, quantitative ring group 600 in a carrier gas interface 500, a quantitative ring group 600 and 800, one sample introduction gas circuits 800 of chromatographic column 700 sample introduction gas circuits of formation comprises two interfaces.
Particularly, comprise a plurality of quantitative rings between two interfaces in the above-mentioned quantitative ring group 600, and a plurality of quantitative rings are linked in sequence between two interfaces, be that end of first the quantitative ring in the quantitative ring group 600 is as an interface of quantitative ring group 600, first other end that quantitatively encircles is connected with second end that quantitatively encircles, second other end that quantitatively encircles is connected with the 3rd end that quantitatively encircles, be connected with the end that penult quantitatively encircles until last end that quantitatively encircles, the other end conduct of last quantitative ring is another interface of ring group 600 quantitatively.
In the present embodiment, every two adjacent quantitative rings can be realized connecting by external pipe in the quantitative ring group 600.
Above-mentioned concatenate rule can comprise:
Rule 1: an interface of the quantitative ring group 600 in sample introduction interface 300 and first sample introduction gas circuit 800 is connected, an interface of the quantitative ring group 600 in another interface of the quantitative ring group 600 in first sample introduction gas circuit 800 and adjacent second the sample introduction gas circuit 800 is connected, and an interface of the quantitative ring group 600 in another interface of the quantitative ring group 600 in second sample introduction gas circuit 800 and the 3rd the adjacent sample introduction gas circuit 800 is connected.An interface according to the quantitative ring group 600 in interface of the quantitative ring group 600 in the sample introduction gas circuit 800 and the adjacent last sample introduction gas circuit 800 is connected, a connected mode that interface is connected of the quantitative ring group 600 in another interface of the quantitative ring group 600 in sample introduction gas circuit 800 and the adjacent next sample introduction gas circuit 800, an interface of the quantitative ring group 600 in the last sample introduction gas circuit 800 that an interface of the quantitative ring group 600 in last sample introduction gas circuit 800 is adjacent connects the concatenate rule that another interface of the quantitative ring group 600 in last sample introduction gas circuit 800 is connected with tail gas interface 400.
Rule 2: sample introduction interface 300 is connected with tail gas interface 400, carrier gas interface 500 in each sample introduction gas circuit 800 connects with interface of quantitative ring group 600 in being in identical sample introduction gas circuit 800, be in the identical sample introduction gas circuit 800 chromatographic column 700 be in identical sample introduction gas circuit 800 in the concatenate rule of another interface connection of quantitative ring group 600.
Certainly, the application is not limited only to this two kinds of concatenate rules, and all other connected modes can realize that also the application connects purpose, all belongs to the scope of the application's protection.
Need to prove: nearest with adjacent sample introduction interface 300 to the ordering of sample introduction gas circuit 800, by counterclockwise naming.First sample introduction gas circuit 800 is the sample introduction gas circuit 800 that is connected with sample introduction interface 300, and with first sample introduction gas circuit 800 beginnings, counterclockwise naming the sample introduction gas circuit 800 of back successively is second sample introduction gas circuit 800, the 3rd sample introduction gas circuit 800 etc.
In the present embodiment, reversing arrangement 200 is provided with a plurality of inner connecting interfaces and a plurality of external connection interface section, and the number of a plurality of inner connecting interfaces on the reversing arrangement 200 is identical with the number of a plurality of external connection interface section.Preferably, reversing arrangement 200 can be the plane multiport valve, the number of all external connection interface section is 4 times of carrier gas interface 500 numbers and 2 quantity that add and draw in the multiport valve of plane, and in the multiport valve of plane all external connection interface section respectively with the gas chromatograph sampling system in sample introduction interface 300, tail gas interface 400, different carrier gas interface 500, different quantitative ring group 600 be connected with different chromatographic column 700.Be that sample introduction interface 300, tail gas interface 400, any one carrier gas interface 500 and any one chromatographic column 700 in the gas chromatograph sampling system all is connected an interface in the multiport valve of plane separately, two interfaces that any one quantitative ring group 600 connects in the multiport valve of plane, and the interface that connects is different.
In the present embodiment, the action of reversing arrangement 200 can be driven by stepper motor 201 and finish, and control system 100 sends control command to stepper motor 201, and stepper motor 201 drives reversing arrangement 200 to begin to rotate.Wherein, the control command that control system of stepper motor 201 every receptions 100 sends, stepper motor 201 can rotate corresponding angle according to this control command, thereby drives reversing arrangement 200 rotating certain angle.
Need to prove: stepper motor 201 can be as shown in Figure 3 with being connected of reversing arrangement 200, the partial elevation view of a kind of gas chromatograph sampling system that Fig. 3 provides for the application, comprise: reversing arrangement 200, stepper motor 201 and bearing 202, bearing 202 is connected with the center of reversing arrangement 200.Reversing arrangement 200 can be fixed on the center of gas chromatograph sampling system by bearing 202, and stepper motor 201 drives reversing arrangements 200 by bearing 202 and rotates.
Comprise among Fig. 2: sample introduction interface 300, tail gas interface 400, carrier gas interface 500, quantitative ring group 600 and chromatographic column 700.Wherein, carrier gas interface 500, quantitatively ring group 600 is identical with the number of chromatographic column 700, and number is at least two.A carrier gas interface 500, a quantitative ring group 600 and a chromatographic column 700 constitute a sample introduction gas circuit 800, and the quantitative ring group 600 in the sample introduction gas circuit 800 comprises two interfaces simultaneously.
Need to prove: the gas chromatograph sampling system in the present embodiment only needs a sample introduction interface 300 and a tail gas interface 400, sample enters into quantitative ring group 600 by sample introduction interface 300, export by tail gas interface 400, to guarantee that sample is injected in all quantitative ring groups 600 simultaneously by a sample introduction interface 300.
Quantitatively ring group 600 is used for the storage sample, when sample is analyzed, the sample of its storage is injected into chromatographic column 700.Quantitatively a plurality of quantitative ring in the ring group 600 is linked in sequence between two interfaces of quantitative ring group 600.Wherein, two the every adjacent quantitative rings in the quantitative ring group 600 can be realized connecting by external pipe.
Need to prove: in the present embodiment, when sample is waited to inject or when sample injects, carrier gas interface 500 is connected with chromatographic column 700.The carrier gas of carrier gas interface 500 inputs inputs to chromatographic column 700 always, foreign gas in the chromatographic column 700 can be discharged chromatographic column 700, to realize the effect to chromatographic column 700 removal of contamination gases, the accuracy of the data that obtain after 700 pairs of samples of assurance chromatographic column are analyzed.
In the present embodiment, sample is in when waiting to inject or is in when injecting at sample, control system 100 control reversing arrangements 200 connect according to the connected mode of rule 1, an interface of the quantitative ring group 600 in sample introduction interface 300 and first sample introduction gas circuit 800 is connected, an interface of the quantitative ring group 600 in another interface of the quantitative ring group 600 in first sample introduction gas circuit 800 and adjacent second the sample introduction gas circuit 800 is connected, and an interface of the quantitative ring group 600 in another interface of the quantitative ring group 600 in second sample introduction gas circuit 800 and the 3rd the adjacent sample introduction gas circuit 800 is connected.An interface according to the quantitative ring group 600 in interface of the quantitative ring group 600 in the sample introduction gas circuit 800 and the adjacent last sample introduction gas circuit 800 is connected, a connected mode that interface is connected of the quantitative ring group 600 in another interface of the quantitative ring group 600 in sample introduction gas circuit 800 and the adjacent next sample introduction gas circuit 800, an interface of the quantitative ring group 600 in the last sample introduction gas circuit 800 that an interface of the quantitative ring group 600 in last sample introduction gas circuit 800 is adjacent connects, and another interface of the quantitative ring group 600 in last sample introduction gas circuit 800 is connected with tail gas interface 400.An interface that is about to the quantitative ring group 600 in sample introduction interface 300 and first sample introduction gas circuit 800 is connected, another interface of quantitative ring group 600 in first sample introduction gas circuit 800 connects an interface of the quantitative ring group 600 in the sample introduction gas circuit 800 adjacent with this sample introduction gas circuit 800, and another interface of the quantitative ring group 600 in last sample introduction gas circuit 800 is connected with tail gas interface 400.
Sample is in when analyzing, and control system 100 control reversing arrangements 200 connect according to the connected mode of rule 2, and sample introduction interface 300 is connected with tail gas interface 400.For first sample introduction gas circuit 800, an interface of the quantitative ring group 600 in the carrier gas interface 500 in first sample introduction gas circuit 800 and first sample introduction gas circuit 800 is connected, and another interface of the quantitative ring group 600 in the chromatographic column 700 in first sample introduction gas circuit 800 and first sample introduction gas circuit 800 is connected; For second sample introduction gas circuit 800, an interface of the quantitative ring group 600 in the carrier gas interface 500 in second sample introduction gas circuit 800 and second the sample introduction gas circuit 800 is connected, and another interface of the quantitative ring group 600 in the chromatographic column 700 in second sample introduction gas circuit 800 and second the sample introduction gas circuit 800 is connected.Namely, carrier gas interface 500 in each sample introduction gas circuit 800 is connected with interface of quantitative ring group 600 in being in identical sample introduction gas circuit 800, be in the identical sample introduction gas circuit 800 chromatographic column 700 be in identical sample introduction gas circuit 800 in another interface connection of quantitative ring group 600.
For ease of understanding the present techniques scheme better, be that plane ten-way valve 200 is example with reversing arrangement 200 below, the principle of work of the gas chromatograph sampling system in the embodiment of the present application is described.
See also Fig. 4, the structural representation that it shows the plane ten-way valve in a kind of gas chromatograph sampling system that the application provides comprises: ten inner connecting interfaces and ten external connection interface section.Wherein,
Inside by ten inner connecting interfaces connects, can realize the connection of plane ten-way valve 200 internal pipelines, ten external connection interface section can realize in plane ten-way valve 200 and the gas chromatograph sampling system sample introduction interface 300, tail gas interface 400, carrier gas interface 500, quantitatively ring group 600 and chromatographic column 700 is connected.
Further, with ten inner connecting interfaces of plane ten-way valve 200 clockwise or be rotated counterclockwise certain angle, the position of ten inner connecting interfaces that can realize plane ten-way valve 200 is corresponding one by one with the position of ten external connection interface section, at this moment, ten inner connecting interfaces of plane ten-way valve 200, ten external connection interface section corresponding with it are communicated with, and have namely realized the internal pipeline of plane ten-way valve 200 is connected with external pipe.Here, for convenience's sake, by counterclockwise direction ten inner connecting interfaces of plane ten-way valve 200 are distinguished called after: 1a, 1b, 2a, 2b, 3a, 3b, 4a, 4b, 5a, 5b, ten external connection interface section of plane ten-way valve 200 are distinguished called afters: 1,2,3,4,5,6,7,8,9,10.
In the present embodiment, the a interface of adjacent same sequence number is connected with the b interface in ten inner connecting interfaces with plane ten-way valve 200 in advance, be that 1a is connected with 1b, 2a is connected with 2b, 3a is connected with 3b, 4a is connected with 4b, and 5a is connected with 5b, realizes the connection of two interfaces that ten-way valve 200 inside in plane are adjacent.
In the present embodiment, the interface of gas chromatograph sampling system comprises: a sample introduction interface 300, a tail gas interface 400, two carrier gas interfaces 500, two quantitative ring groups 600 and two chromatographic columns 700, each quantitative ring group 600 comprises two interfaces, and comprises a quantitatively ring between two interfaces in each quantitative ring group 600.Wherein, quantitatively ring 601 constitutes the first sample introduction gas circuit, 801, the second carrier gas interfaces 502, second chromatographic column 702 and second is quantitatively encircled 602 and constituted the second sample introduction gas circuit 802 for the first carrier gas interface 501, first chromatographic column 701 and first.Wherein,
Need to prove: when including only a quantitative ring in the quantitative ring group 600, these two ends of quantitatively encircling i.e. two interfaces of this quantitative ring group 600.
Be in when waiting to inject or when sample injects at sample, see also Fig. 5, it shows the workflow synoptic diagram of a kind of gas chromatograph sampling system that the application provides, in the inside connecting interface in the control system 100 control plane ten-way valves 200 in the called after a sequence number interface one, as 5a, with the 1 corresponding connection of external connection interface section in the plane ten-way valve 200.This moment, 5b was connected with external connection interface section 2,1a is connected with external connection interface section 3,1b is connected with external connection interface section 4,2a is connected with external connection interface section 5,2b is connected with external connection interface section 6, and 3a is connected with external connection interface section 7, and 3b is connected with external connection interface section 8,4a is connected with external connection interface section 9, and 4b is connected with external connection interface section 10.Namely, an end of having realized the quantitative ring 601 of first in the first sample introduction gas circuit 801 is connected with sample introduction interface 300, first quantitatively second in the other end and the second sample introduction gas circuit 802 of ring 601 quantitatively encircle an end of 602 and be connected, the other end of the second quantitative ring 602 is connected with tail gas interface 400, the first carrier gas interface 501 in the first sample introduction gas circuit 801 is connected with first chromatographic column 701 in the first sample introduction gas circuit 801, and the second carrier gas interface 502 in the second sample introduction gas circuit 802 is connected with second chromatographic column 702 in the second sample introduction gas circuit 802.
At this moment, sample is injected by sample introduction interface 300, by the inside connecting interface 5a in the plane ten-way valve 200 and the connection of 5b, sample is inputed to quantitatively ring 601 of first in the first sample introduction gas circuit 801, and then by the inside connecting interface 2a in the plane ten-way valve 200 and the connection of 2b, sample is quantitatively encircled 601 by first input to the second quantitative ring 602, at last by the inside connecting interface 4a in the plane ten-way valve 200 and the connection of 4b, sample is quantitatively encircled 602 by second input to tail gas interface 400, via tail gas interface 400 unnecessary sample is exported.
In the present embodiment, sample is by 300 inputs of a sample introduction interface, and all quantitative ring groups 600 of flowing through at last by a tail gas interface 400, have guaranteed sample is injected simultaneously simultaneity and the accuracy of a plurality of quantitative ring groups 600.
Meanwhile, because the adjacent a interface in the plane ten-way valve 200 is communicated with the b interface, so in the present embodiment, the first carrier gas interface 501 is connected with first chromatographic column 701, the second carrier gas interface 502 is connected with second chromatographic column 702.In advance carrier gas is inputed in first chromatographic column 701 and second chromatographic column 702, effectively get rid of the foreign gas that exists in first chromatographic column 701 and second chromatographic column 702, guarantee that gas chromatograph detects accuracy and the reliability of sample data.
When sample is in analysis, see also Fig. 6, it shows the another kind of workflow synoptic diagram of a kind of gas chromatograph sampling system that the application provides, in the external connection interface section in the control system 100 control plane ten-way valves 200 in the called after b sequence number interface one, as 5b, with the 1 corresponding connection of external connection interface section in the plane ten-way valve 200.This moment, 1a was connected with external connection interface section 2,1b is connected with external connection interface section 3,2a is connected with external connection interface section 4,2b is connected with external connection interface section 5,3a is connected with external connection interface section 6, and 3b is connected with external connection interface section 7, and 4a is connected with external connection interface section 8,4b is connected with external connection interface section 9, and 5b is connected with external connection interface section 10.That is, realized and to have been exported from tail gas interface 400 by the sample that sample introduction interface 300 injects, the quantitative ring group 600 in the gas chromatograph sampling system has not been injected fluids to be measured.At this moment, the first carrier gas interface 501 in the first sample introduction gas circuit 801 is by the inside connecting interface 1a in the plane ten-way valve 200 and the connection of 1b, realize being connected with an end of the first quantitative ring 601, the other end of the first quantitative ring 601 is by the inside connecting interface 2a in the plane ten-way valve 200 and the connection of 2b, realize being connected with first chromatographic column 701, the second carrier gas interface 502 in the second sample introduction gas circuit 802 is by the inside connecting interface 4a in the plane ten-way valve 200 and the connection of 4b, realize being connected with an end of the second quantitative ring 602, the other end of the second quantitative ring 602 is realized being connected with second chromatographic column 702 by the inside connecting interface 3a in the plane ten-way valve 200 and the connection of 3b.
At this moment, rely on the injection of carrier gas, be injected in first chromatographic column 701 being stored in first sample that quantitatively encircles in 601, begin to carry out the analysis of sample by first chromatographic column 701; Be injected in second chromatographic column 702 being stored in second sample that quantitatively encircles in 602, begin to carry out the analysis of sample by second chromatographic column 702.
Need to prove: the gas chromatograph sampling system that the application provides is after finishing analysis sample data, control system 100 can detect current gas chromatograph and be in no duty, can send an Opportunity awaiting control for linear order automatically to plane ten-way valve 200, by plane ten-way valve 200 control sample introduction interfaces 300, tail gas interface 400, carrier gas interface 500, quantitatively the connected mode of ring group 600 and chromatographic column 700 is that sample is in when waiting to inject or connected mode when sample injects, for the injection of sample is next time got ready.
Use technique scheme, the gas chromatograph sampling system that the application provides is when sample is waited to inject or when sample injects, by reversing arrangement 200 sample introduction interface 300, all quantitative ring groups 600 are connected with tail gas interface 400, constitute intake channel, make sample pass through the order of sample introduction interface 300, all quantitative ring groups 600, tail gas interface 400, be injected into simultaneously in all quantitative ring groups 600; The gas chromatograph sampling system will be in sample in the quantitative ring group 600 in the identical sample introduction gas circuit 800 by the carrier gas interface 500 in each sample introduction gas circuit 800 and be injected in the chromatographic column 700 that is in the identical sample introduction gas circuit 800 and analyze when sample is analyzed.The gas chromatograph sampling system that the application provides has guaranteed simultaneity and the accuracy of sample sample introduction, get rid of artificial sample introduction or the two-way problem of the artificial disturbing factor of input mode existence respectively, further improved accuracy and the reliability of gas chromatograph detection sample data.
Another embodiment
On the basis of above-described embodiment, can also comprise the optoelectronic switch 900 that is connected between reversing arrangement 200 and the control system 100, see also Fig. 7, the another kind of partial elevation view that it shows a kind of gas chromatograph sampling system that the application provides also comprises on the basis of Fig. 3: optoelectronic switch 900.Whether wherein, optoelectronic switch 900 can be arranged between reversing arrangement 200 and the control system 100, correct with being connected of a plurality of external connection interface section for detection of a plurality of inner connecting interface of reversing arrangement 200.
Particularly, the bearing 202 of reversing arrangement 200 is provided with code-disc 201, code-disc 201 is provided with pilot hole, pilot hole is corresponding one by one with inside connecting interface on the reversing arrangement 200, and namely the number of the number of pilot hole and inner connecting interface is identical and pilot hole is corresponding fully with the position of inner connecting interface.By reversing arrangement 200 action, can realize that ten pilot holes on the code-disc 201 are corresponding one by one with ten inner connecting interfaces in the plane ten-way valve 200.For the ease of more clearly describing its corresponding relation, the reversing arrangement 200 in the present embodiment is that example is elaborated with plane ten-way valve 200 still.
In the present embodiment, code-disc 201 places the light path of luminotron and the receiving tube of optoelectronic switch 900, and pilot hole center and light path center-aligned.Simultaneously, the pilot hole diameter that can also set in advance corresponding a sequence number interface position is the twice that the pilot hole diameter of corresponding b sequence number interface position is set.When the pilot hole of a sequence number interface in the control system 100 control plane ten-way valves 200 and light path center-aligned because the pilot hole diameter of a sequence number interface position is big, so optoelectronic switch 900 to export the light signal of control system 100 to strong; When the pilot hole of the b sequence number interface in the control system 100 control plane ten-way valves 200 and light path center-aligned, because the pilot hole diameter of b sequence number interface position is little, so optoelectronic switch 900 exports to a little less than the light signal of control system 100.Control system 100 is by receiving the light signal of optoelectronic switch 900 outputs, detect the strong and weak size of its light signal, and then judge whether being connected of plane ten-way valve 200 control sample introduction interfaces 300, tail gas interface 400, carrier gas interface 500, quantitative ring group 600 and chromatographic column 700 be correct.
Particularly, the pilot hole of corresponding a interface switches to the pilot hole of corresponding b interface over against the light path center situation over against the light path center situation in plane ten-way valve 200, and when ten-way valve 200 actions in plane are correct, the signal of optoelectronic switch 900 outputs can experience by Qiang Zhiwu, again by not having to weak process, and the signal of last optoelectronic switch 900 outputs can be positioned at weak state.At this moment, it is strong to not having that control system 100 detects the optical signals that receives, again by do not have to a little less than, and when being positioned at the accepting state of a weak signal at last, can judge in the b sequence number interface in the plane ten-way valve 200 success be connected with 300 realizations of sample introduction interface; The pilot hole of corresponding b interface switches to the pilot hole of corresponding a interface over against the light path center situation over against the light path center situation in plane ten-way valve 200, and when ten-way valve 200 actions in plane are correct, the signal of optoelectronic switch 900 outputs can experience by weak to not having, again by not having to strong process, and the signal of last optoelectronic switch 900 outputs can be positioned at strong state.At this moment, it is weak to not having that control system 100 detects the optical signals that receives, again by not having to strong, and when being positioned at the accepting state of a strong signal at last, can judge in a sequence number interface in the plane ten-way valve 200 success be connected with 300 realizations of sample introduction interface.
When ten-way valve 200 actions in plane are incorrect, the pilot hole of the corresponding a of any one in the plane ten-way valve 200 or b interface all can not be realized and the light path center-aligned, this moment, the light signal of optoelectronic switch 900 outputs can not correctly be sent to control system 100, this moment, control system 100 detected the signal of optoelectronic switch 900 outputs that receive, show as and be positioned at no signal or substantial deviation preset signals strength range at last, show when frontal plane ten-way valve 200 action incorrectly, control system 100 sends one and begins alarm to inform the user.
Need to prove: experienced by Qiang Zhiwu if control system 100 detects the signal of optoelectronic switch 900 outputs that receive, again by not having extremely weak or extremely not had by weak, again by not having to strong process, but the signal bull bear position of last location does not change, the connected mode that shows each several part in the current gas chromatograph sampling system does not change, and control system 100 also can be sent an alarm signal to inform the user.
Need to prove that each embodiment in this instructions all adopts the mode of going forward one by one to describe, what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
At last, also need to prove, in this article, relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint and have the relation of any this reality or in proper order between these entities or the operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.Do not having under the situation of more restrictions, the key element that is limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
More than a kind of gas chromatograph sampling system that the application is provided be described in detail, used specific case herein the application's principle and embodiment are set forth, the explanation of above embodiment just is used for helping to understand the application's method and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to the application's thought, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application.
Claims (7)
1. a gas chromatograph sampling system is characterized in that, comprising: control system, reversing arrangement, sample introduction interface, tail gas interface, carrier gas interface, quantitative ring group and chromatographic column, wherein,
The number of described carrier gas interface, described quantitative ring group and described chromatographic column is identical, and described quantitative ring group comprises at least one quantitative ring;
A described carrier gas interface, a described quantitative ring group and a described chromatographic column constitute a sample introduction gas circuit, and the quantitative ring group in the described sample introduction gas circuit comprises two interfaces;
Described control system is used for the described reversing arrangement of control when sample is waited to inject or when sample injects, an interface of the quantitative ring group in the described sample introduction gas circuit of described sample introduction interface and first is connected, another interface of quantitative ring group in first described sample introduction gas circuit connects an interface of the quantitative ring group in the described sample introduction gas circuit adjacent with this sample introduction gas circuit, and another interface of the quantitative ring group in last described sample introduction gas circuit is connected with described tail gas interface;
Described control system is used for the described reversing arrangement of control when sample is analyzed, described sample introduction interface is connected with described tail gas interface, carrier gas interface in described each sample introduction gas circuit is connected with interface of quantitative ring group in being in identical sample introduction gas circuit, be in the identical sample introduction gas circuit chromatographic column be in identical sample introduction gas circuit in another interface connection of quantitative ring group.
2. system according to claim 1 is characterized in that, described quantitative ring group comprises two or more quantitatively rings,
Quantitative ring in the described quantitative ring group is linked in sequence between described two interfaces.
3. system according to claim 2 is characterized in that, two the every adjacent quantitative rings in the described quantitative ring group are realized connecting by external pipe.
4. system according to claim 1, it is characterized in that, described reversing arrangement comprises the plane multiport valve, the number of all external connection interface section is 4 times of described carrier gas interface numbers and 2 quantity that add and draw in the multiport valve of described plane, and in the multiport valve of described plane all external connection interface section respectively with described gas chromatograph sampling system in sample introduction interface, tail gas interface, different carrier gas interface, different quantitative ring group be connected with different chromatographic column.
5. system according to claim 1, it is characterized in that, described reversing arrangement is provided with a plurality of inner connecting interfaces and a plurality of external connection interface section, and the number of a plurality of inner connecting interfaces on the described reversing arrangement is identical with the number of a plurality of external connection interface section, and described system also comprises:
Be connected whether correct optoelectronic switch with a plurality of external connection interface section for detection of a plurality of inner connecting interface of described reversing arrangement.
6. system according to claim 5, it is characterized in that, described reversing arrangement is provided with a code-disc, described code-disc is provided with a plurality of pilot holes, and the number of the inside connecting interface in the number of the pilot hole on the described code-disc and the described reversing arrangement is identical, and the pilot hole on the described code-disc is corresponding one by one with inside connecting interface in the described reversing arrangement
Whether one to one described optoelectronic switch is specially for detection of the interface of the pilot hole on the described code-disc and described reversing arrangement optoelectronic switch.
7. system according to claim 4, it is characterized in that, described plane multiport valve is the plane ten-way valve, described gas chromatograph sampling system comprises: control system, a sample introduction interface, a tail gas interface, two described carrier gas interfaces, two described quantitative ring groups and two described chromatographic columns, wherein, a described quantitative ring group comprises two interfaces, comprises a quantitatively ring between described two interfaces;
A described carrier gas interface, a described chromatographic column become the first sample introduction gas circuit with a described quantitative ring fabric, and another described carrier gas interface, another described chromatographic column and another described quantitative ring fabric become the second sample introduction gas circuit;
Described control system is used for the described plane of control ten-way valve when sample is waited to inject or when sample injects, interface of quantitative ring group in the described first sample introduction gas circuit is connected with described sample introduction interface, another interface of quantitative ring group in another interface of quantitative ring group in the described first sample introduction gas circuit and the described second sample introduction gas circuit is connected, an interface of the quantitative ring group in the described second sample introduction gas circuit is connected with described tail gas interface, carrier gas interface in the described first sample introduction gas circuit is connected with chromatographic column in the described first sample introduction gas circuit, and the carrier gas interface in the described second sample introduction gas circuit is connected with chromatographic column in the described second sample introduction gas circuit;
Described control system is used for the described plane of control ten-way valve when sample is analyzed, described sample introduction interface is connected with described tail gas interface, interface of the quantitative ring group in the described first sample introduction gas circuit is connected with carrier gas interface in the described first sample introduction gas circuit, another interface of quantitative ring group in the described first sample introduction gas circuit is connected with chromatographic column in the described first sample introduction gas circuit, interface of the quantitative ring group in the described second sample introduction gas circuit is connected with carrier gas interface in the described second sample introduction gas circuit, another interface of the quantitative ring group in the described second sample introduction gas circuit is connected with chromatographic column in the described second sample introduction gas circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220663436 CN203037630U (en) | 2012-12-05 | 2012-12-05 | Sample injection system of gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220663436 CN203037630U (en) | 2012-12-05 | 2012-12-05 | Sample injection system of gas chromatograph |
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| CN203037630U true CN203037630U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220663436 Expired - Lifetime CN203037630U (en) | 2012-12-05 | 2012-12-05 | Sample injection system of gas chromatograph |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980962A (en) * | 2012-12-05 | 2013-03-20 | 重庆市电力公司电力科学研究院 | Sampling system and processing method for gas chromatograph |
| CN105527358A (en) * | 2014-09-30 | 2016-04-27 | 北京普析通用仪器有限责任公司 | Sample introduction device, thermal weight loss-gas chromatography system and thermal weight loss-gas chromatography-mass spectrometry system |
| CN111505186A (en) * | 2020-05-11 | 2020-08-07 | 合肥水泥研究设计院有限公司 | Multichannel sample introduction gas chromatograph |
| CN112986442A (en) * | 2021-03-11 | 2021-06-18 | 国网浙江省电力有限公司电力科学研究院 | Oil-gas integrated detection gas chromatograph for high-voltage electrical equipment |
-
2012
- 2012-12-05 CN CN 201220663436 patent/CN203037630U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980962A (en) * | 2012-12-05 | 2013-03-20 | 重庆市电力公司电力科学研究院 | Sampling system and processing method for gas chromatograph |
| CN105527358A (en) * | 2014-09-30 | 2016-04-27 | 北京普析通用仪器有限责任公司 | Sample introduction device, thermal weight loss-gas chromatography system and thermal weight loss-gas chromatography-mass spectrometry system |
| CN111505186A (en) * | 2020-05-11 | 2020-08-07 | 合肥水泥研究设计院有限公司 | Multichannel sample introduction gas chromatograph |
| CN112986442A (en) * | 2021-03-11 | 2021-06-18 | 国网浙江省电力有限公司电力科学研究院 | Oil-gas integrated detection gas chromatograph for high-voltage electrical equipment |
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