CN207650167U - The sample gas gas handling system of online gas chromatographic detection - Google Patents
The sample gas gas handling system of online gas chromatographic detection Download PDFInfo
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- CN207650167U CN207650167U CN201721763135.9U CN201721763135U CN207650167U CN 207650167 U CN207650167 U CN 207650167U CN 201721763135 U CN201721763135 U CN 201721763135U CN 207650167 U CN207650167 U CN 207650167U
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Abstract
The utility model discloses a kind of sample gas gas handling system of online gas chromatographic detection, the inlet end of sampling pump is connected with air source, and the outlet side of sampling pump is connected with the first air inlet of reversing valve complement；Sample gas quantifies the air inlet of storage unit and is connected with the first gas outlet of reversing valve complement, and sample gas quantifies the gas outlet of storage unit and is connected with the second air inlet of reversing valve complement；The buffered tank in the second gas outlet of reversing valve complement connects first row gas port；Gas-carrier pipeline is connected to the third air inlet of reversing valve complement, and the third gas outlet of reversing valve complement connects detection unit.Sample air pump is sent to sample gas and quantified at storage unit by sampling pump, and sample gas quantifies storage unit and is connected with surge tank, being conducive to sample gas in this way, to quantify sample gas in storage unit with good stability, using reversing valve complement translated channel, the sample gas of pressure stability is transported to by carrier gas and connects detection unit examinations, accurate testing result can be obtained in this way.
Description
Technical field
The utility model is related to a kind of designs of gas pressure balancing to lead to more particularly, to a kind of online gas chromatograph
Sample introduction pressure balanced design when aspiration pump is sampled is crossed, and is applied to gas analysis field.
Background technology
During currently used online gas chromatographic analysis, it is primarily present following deficiency：
1, sampling pump is directly used to drive sample gas sample introduction, the fluctuation of chromatograph sample introduction gas pressure is big, leads to standard sample size
Fluctuation is big, and measurement data is unstable；
2, during online gas chromatographic analysis, filter air penetrability changes over time in pretreatment, leads to chromatograph
It changes into fashionable sample atmospheric pressure, measurement data changes therewith；
3, some sampling pumps carry out pressure balance using start stop mode, and sampling pump is easily damaged；On the other hand, sample gas samples
It will be late by.
Utility model content
The purpose of this utility model is to provide a kind of sample gas gas handling system of online gas chromatographic detection, to realize continuous sample
Gas acquires, and the sample atmospheric pressure obtained is stablized.
To achieve the above object, the utility model uses following technical scheme：The sample gas of online gas chromatographic detection into
Gas system, it is characterised in that：The inlet end of sampling pump is connected with air source, the outlet side of sampling pump and the first of reversing valve complement into
Gas port is connected；Sample gas quantifies the air inlet of storage unit and is connected with the first gas outlet of reversing valve complement, and sample gas quantitatively stores list
The gas outlet of member is connected with the second air inlet of reversing valve complement；The buffered tank in the second gas outlet of reversing valve complement connects first row
Gas port；Gas-carrier pipeline is connected to the third air inlet of reversing valve complement, and the third gas outlet of reversing valve complement connects detection unit.
In technical solution provided by the utility model, sample air pump is sent to sample gas and quantified at storage unit by sampling pump, and sample
Gas quantifies storage unit and surge tank and connects, and being conducive to sample gas in this way, to quantify sample gas in storage unit with good stability,
Using reversing valve complement translated channel, the sample gas of pressure stability is transported to by carrier gas and connects detection unit examinations, in this way
Accurate testing result can be obtained.
Description of the drawings
Fig. 1 is the system schematic of sample gas sampling process in the utility model；
Fig. 2 is the system schematic of sample gas pressure balance process in the utility model；
Fig. 3 is the system schematic of sample gas analytic process in the utility model.
Specific implementation mode
In conjunction with Fig. 1,2,3, a kind of sample gas gas handling system of online gas chromatographic detection, the inlet end and air source of sampling pump 10
It is connected, the outlet side of sampling pump 10 is connected with the first air inlet 31 of reversing valve complement 30；Sample gas quantify storage unit 40 into
Gas port 41 is connected with the first gas outlet 32 of reversing valve complement 30, sample gas quantify storage unit 40 gas outlet 42 and reversal valve it is total
It is connected at 30 the second air inlet 33；The 34 buffered tank 50 of the second gas outlet of reversing valve complement 30 connects first row gas port 61；It carries
Air pipe 70 is connected to the third air inlet 35 of reversing valve complement 30, and the third gas outlet 36 of reversing valve complement 30 connects detection list
Member.Sample gas quantifies storage unit 40 and can be understood as one section of pipeline, has tube chamber volume appropriate to accommodate the sample of enough tolerance
Gas.
Following guiding path is selected when the spool transposition of reversing valve complement 30：First air inlet 31 of reversing valve complement 30,
When first gas outlet 32 is connected, sample gas arrives at sample gas and quantifies storage unit 40；Second air inlet 33, second of reversing valve complement 30
When gas outlet 34 is connected, the sample gas that sample gas quantifies storage unit 40 arrives at surge tank 50；The third air inlet of reversing valve complement 30
35, when third gas outlet 36 is connected, chromatographic column 80, the detection unit 90 of detection unit are arrived in carrier gas.
Referring to Fig. 1,2,3, threeway is set between the outlet side of sampling pump 10 and the first air inlet 31 of reversing valve complement 30
The air inlet mouth of pipe 21 of valve 20, triple valve 20 is connected with the outlet side of sampling pump 10, the first and second outlet mouth of pipe 22 of triple valve 20,
23 are connected with the first air inlet 31 of reversing valve complement 30, second exhaust port 62 respectively.The setting of triple valve 20 can be to avoid adopting
Sample pump 10 frequent start-stop action, with extend sampling pump 10 service life and appliance component starting current it is excessive caused by
Equipment fault.
Referring to Fig. 3, the spool of reversing valve complement 30 selects following guiding path when replacing：The third of reversing valve complement 30 into
When gas port 35, the conducting of the first gas outlet 32 and the second air inlet 33, third gas outlet 36 are connected, carrier gas push sample gas quantitatively stores
The sample gas of unit 40 arrives at chromatographic column 80, detection unit 90.
Preferably, 30 rotary two six-way transfer valves of reversing valve complement, the valve arrangement is simple and can realize work(
It can require.
Illustrate the course of work of the utility model briefly below：
1), as shown in Figure 1, the air inlet mouth of pipe 21 of triple valve 20, the conducting of the first outlet mouth of pipe 22, sampling pump 10 work and pump
Sample presentation gas, when sample gas meets the tolerance of testing requirements, in conjunction with Fig. 2, switching three-way valve 20 makes sample gas quantify storage unit 40
Air inlet 41 is expired without sample gas and is gone successively to, at this time 20 second outlet mouth of pipe 23 of triple valve and 62 phase of second exhaust port
Even, ensure the normal work of sampling pump 10；
2), as shown in Fig. 2, sample gas, which quantifies, is full of sample gas in storage unit 40, surge tank 50, that is, the sample gas acquired retains
Storage unit 40 is quantified in sample gas, in surge tank 50, and sample gas is quantified for compensating sample gas in storage unit 40 in surge tank 50
The fluctuation of sample atmospheric pressure is played pressure balance is prevented to be destroyed, while preventing ambient atmos and enter sample gas to quantify storage unit 40
It is interior, influence the variation of sample gas components；
3) it before, sample gas detection process starts, as shown in Figure 1, 2, when third air inlet 35, third gas outlet 36 are connected, carries
Carrier gas in air pipe 70 is arrived at the chromatographic column 80 of detection unit and is purged to it, is discharged later by detector cell 90；
4), as shown in figure 3, sample gas quantifies in storage unit 40 after sample gas pressure balance stabilization, switching reversing valve complement 30
Gas-carrier pipeline 70 is connected to the third air inlet 35 of reversing valve complement 30 and the first gas outlet 32 is connected, and carrier gas purge sample presentation gas is simultaneously
Sample gas is transported to chromatographic column 80 to detach, detection unit 90 is eventually arrived at and is detected.
Based on the above-mentioned technical proposal, the utility model has the following advantages that：One is acted on by the switching of triple valve 20,
10 continuous service of sampling pump, 10 service life of sampling pump is long, and it is high that sample gas acquires timeliness；Secondly, by the switching of triple valve 20, it is complete
At the acquisition of sample gas and pressure balance；When separator tube 50 can be to avoid pressure balance, ambient atmos are permeated to sample gas in quantitative loop
The influence of body；Switched by the selection of six-way valve, that is, reversing valve complement 30, the purging of chromatographic column 80 is completed in timesharing and sample gas quantifies
The purging analysis of storage unit 40, gas circuit structure are simple.
Claims (5)
1. a kind of sample gas gas handling system of online gas chromatographic detection, it is characterised in that：The inlet end and air source of sampling pump (10)
It is connected, the outlet side of sampling pump (10) is connected with the first air inlet (31) of reversing valve complement (30)；Sample gas quantifies storage unit
(40) air inlet (41) is connected with the first gas outlet (32) of reversing valve complement (30), and sample gas quantifies going out for storage unit (40)
Gas port (42) is connected with the second air inlet (33) of reversing valve complement (30)；The second gas outlet (34) of reversing valve complement (30) passes through
Surge tank (50) connects first row gas port (61)；Gas-carrier pipeline (70) is connected to the third air inlet (35) of reversing valve complement (30),
The third gas outlet (36) of reversing valve complement (30) connects detection unit.
2. the sample gas gas handling system of online gas chromatographic detection according to claim 1, it is characterised in that：Reversing valve complement
(30) spool selects following guiding path when replacing：The first air inlet (31) of reversing valve complement (30), the first gas outlet
(32) when being connected, sample gas arrives at sample gas and quantifies storage unit (40)；The second air inlet (33) of reversing valve complement (30), second go out
When gas port (34) is connected, the sample gas that sample gas quantifies storage unit (40) arrives at surge tank (50)；The third of reversing valve complement (30)
When air inlet (35), third gas outlet (36) conducting, chromatographic column (80), the detection unit (90) of detection unit are arrived in carrier gas.
3. the sample gas gas handling system of online gas chromatographic detection according to claim 1, it is characterised in that：Sampling pump (10)
Outlet side and the first air inlet (31) of reversing valve complement (30) between setting triple valve (20), the air inlet pipe of triple valve (20)
Mouthful (21) are connected with the outlet side of sampling pump (10), the first and second outlet mouth of pipe (22,23) of triple valve (20) respectively with reversal valve
The first air inlet (31) of assembly (30), second exhaust port (62) are connected.
4. the sample gas gas handling system of online gas chromatographic detection according to claim 1, it is characterised in that：Reversing valve complement
(30) spool selects following guiding path when replacing：The third air inlet (35) of reversing valve complement (30), the first gas outlet
(32) when conducting and the second air inlet (33), third gas outlet (36) are connected, carrier gas push sample gas quantifies storage unit (40)
Sample gas arrives at chromatographic column (80), detection unit (90).
5. the sample gas gas handling system of online gas chromatographic detection according to claim 1 or 2 or 3 or 4, it is characterised in that：
Reversing valve complement (30) is rotary two six-way transfer valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721763135.9U CN207650167U (en) | 2017-12-15 | 2017-12-15 | The sample gas gas handling system of online gas chromatographic detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721763135.9U CN207650167U (en) | 2017-12-15 | 2017-12-15 | The sample gas gas handling system of online gas chromatographic detection |
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| CN207650167U true CN207650167U (en) | 2018-07-24 |
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| CN201721763135.9U Active CN207650167U (en) | 2017-12-15 | 2017-12-15 | The sample gas gas handling system of online gas chromatographic detection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894482A (en) * | 2017-12-15 | 2018-04-10 | 合肥金星机电科技发展有限公司 | The sample gas gas handling system of online gas chromatographic detection |
| CN108732287A (en) * | 2018-08-08 | 2018-11-02 | 成都科林分析技术有限公司 | A kind of thermal desorption gas sample injection device and method |
| CN114019038A (en) * | 2021-10-09 | 2022-02-08 | 长鑫存储技术有限公司 | Device and method for monitoring organic matters in environmental gas |
-
2017
- 2017-12-15 CN CN201721763135.9U patent/CN207650167U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894482A (en) * | 2017-12-15 | 2018-04-10 | 合肥金星机电科技发展有限公司 | The sample gas gas handling system of online gas chromatographic detection |
| CN108732287A (en) * | 2018-08-08 | 2018-11-02 | 成都科林分析技术有限公司 | A kind of thermal desorption gas sample injection device and method |
| CN108732287B (en) * | 2018-08-08 | 2024-01-12 | 成都科林分析技术有限公司 | Thermal desorption gas sampling device and method |
| CN114019038A (en) * | 2021-10-09 | 2022-02-08 | 长鑫存储技术有限公司 | Device and method for monitoring organic matters in environmental gas |
| CN114019038B (en) * | 2021-10-09 | 2024-01-02 | 长鑫存储技术有限公司 | Device and method for monitoring organic matters in environmental gas |
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Address after: No. 228, Wanshui Road, high tech Zone, Hefei City, Anhui Province, 230088 Patentee after: Hefei Jinxing Intelligent Control Technology Co.,Ltd. Address before: No. 228, Wanshui Road, high tech Zone, Hefei City, Anhui Province, 230088 Patentee before: HEFEI GOLD STAR MECHATRONICS TECHNICAL DEVELOPMENT Co.,Ltd. |