CN207439765U - A kind of gas analysis samples switching system - Google Patents
A kind of gas analysis samples switching system Download PDFInfo
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- CN207439765U CN207439765U CN201721661612.0U CN201721661612U CN207439765U CN 207439765 U CN207439765 U CN 207439765U CN 201721661612 U CN201721661612 U CN 201721661612U CN 207439765 U CN207439765 U CN 207439765U
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- gas
- sample gas
- way valve
- analyzer
- main pipeline
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Abstract
The utility model is related to a kind of gas analyses to sample switching system, belongs to gas analysis arrangement technical field.The main pipeline being connected including analyzer, with analyzer injection port and the filter being installed on main pipeline；Its improvements is：It further includes multiple-way valve, and multichannel sample gas is connected by the import different from multiple-way valve of respective branch pipe(tube), and the outlet of multiple-way valve is connected with main pipeline；Flowmeter is installed on every branch pipe(tube).The utility model can realize multichannel sample gas and the connection of an analyzer, and being switched fast for different sample gas can be realized by rotating multiple-way valve handle, improve sample gas switching efficiency and accuracy；Thorough purging to the gaseous impurities such as oxygen, nitrogen in bye-pass and displacement can be achieved by the emptying with the flowmeter purged with atm number, ensure that the accuracy of gas analysis data.
Description
Technical field
The utility model is related to a kind of gas analyses to sample switching system, belongs to gas analysis arrangement technical field.
Background technology
Producer is produced in gas, generally gas componant is analyzed using gas analyzer.Existing analytical instrument one
As only there are one injection port, and in actual production, it is often necessary to there is multichannel gas to enter analyzer.With interim pipeline " many-one "
Connection reliability is inadequate, and impact analysis data, while because needing to plug gas with various pipeline, adds analysis operation personnel
Workload.To solve problems, the prior art mainly adopts the switching that pipe manifold carries out multipath gas, as shown in Figure 1, more
Road sample gas enters gas analyzer after being filtered respectively by respective branch pipe(tube), switching is installed on each branch pipe(tube)
Ball valve；Although pipe manifold switching system can solve to realize that multipath gas enters asking for analyzer in the situation for not plugging pipeline
Topic, but still there are following technical problems：When there is purging, " dead angle " of displacement in switching ball valve and pipe manifold, it is complete
More sample gas are needed into the thorough purging of gas and displacement, cause the waste of sample gas, and inefficiency；Second is that due to
The connector that pipe manifold uses is more, it is most likely that since some connector gas leakage causes oxygen in air, nitrogen component to enter analyzer
Interference, the accuracy of impact analysis data are generated to analysis data, and it is time-consuming and laborious to find leak source, impact analysis efficiency；Third,
Due to switching ball valve and pipe manifold shape design all same, easily obscuring when switching gas causes between different sample gas
" collaborating ".
Utility model content
The purpose of this utility model is that for the drawback of the prior art, a kind of gas analysis sampling switching system is provided,
It can be switched fast between different sample gas, so as to complete accurate, the efficient analysis of different sample gas, and gas
Purging and displacement are convenient, thorough.
Solve above-mentioned technical problem technical solution be：
A kind of gas analysis samples switching system, the main pipeline being connected including analyzer, with analyzer injection port and installation
In the filter on main pipeline；Its improvements is：It further includes multiple-way valve, multichannel sample gas by respective branch pipe(tube) with it is more
The different imports connection of port valve, the outlet of multiple-way valve is connected with main pipeline；Flowmeter is installed on every branch pipe(tube)
A kind of above-mentioned gas analysis samples switching system, is equipped on the main pipeline between the analyzer and filter
Metering valve；Built-in flow control valve in the flowmeter.
When carrying out gas analysis using the utility model, sample gas enters metering valve, metering valve root after being filtered
After carrying out flow adjustment according to the amount of analysis demand of different sample gas, constituent analysis is carried out into analyzer.By rotating multiple-way valve
Handle can realize switching between different sample gas, the alias condition of sample gas will not occur；By adjusting in flowmeter
Control valve can realize the thorough purging of gas and displacement in each branch pipe(tube), and since purging " dead angle " is not present in multiple-way valve,
Gas in bye-pass will not occur to purge or replace halfway situation, ensure the accurate of gas composition analysis.Flowmeter
Outlet can be connected to sample gas recovering device, to recycle the higher sample gas of the values such as xenon, for being harmful to human body or environment
Gas then can directly connect exhaust gas processing device.
The beneficial effects of the utility model are：
The utility model can realize multichannel sample gas and the connection of an analyzer, can be real by rotating multiple-way valve handle
Being switched fast for existing different sample gas, improves sample gas switching efficiency and accuracy；By having the stream purged with atm number
Gauge can realize the thorough purging and displacement to the gaseous impurities such as oxygen, nitrogen in bye-pass, ensure that gas analysis data
Accuracy.
Description of the drawings
Fig. 1 is pipe manifold switching system schematic diagram of the prior art；
Fig. 2 is utility model diagram；
In figure mark for：Analyzer 1, main pipeline 2, filter 3, multiple-way valve 4, branch pipe(tube) 5, flowmeter 6, metering valve 7, control
Valve 8 processed, switching ball valve 9.
Specific embodiment
Fig. 2 shows, a kind of gas analysis sampling switching system of the utility model, including analyzer 1, with analyzer 1 into
The main pipeline 2 of sample mouth connection, the filter 3 being installed on main pipeline 2 and multiple-way valve 4, in the present embodiment, multiple-way valve 4 is five
Port valve；4 tunnel sample gas are connected by respective branch pipe(tube) 5 with 4 imports of multiple-way valve 4, outlet and the main pipeline 2 of multiple-way valve 4
Connection；Being equipped on every branch pipe(tube) 5 has the function of the flowmeter 6 of big flow purging, and flowmeter 6 carries adjusting gas flow
Control valve 8；Metering valve 7 is installed on main pipeline 2 between analyzer 1 and filter 3, for adjusting control sample gas flow.
When analyzing one of sample gas, multiple-way valve is switched to the position of the sample gas first, is then adjusted as needed
Control valve 8 on the whole sample gas branch pipe(tube) flow meter 6, enable upstream sample gas fully to the branch pipe(tube) of the sample gas into
Line replacement, at this time can be to analyzing into the sample gas of analyzer 1；If it find that the interference components such as oxygen, nitrogen are more in air,
Control valve 8 can be tuned up again, reach the purpose of increase tolerance rapid purging；Remaining 3 tunnel sample gas can be adjusted as needed
Control valve 8 on whole respective flowmeter 6 to be purged to corresponding pipeline, purges, replaces oxygen, nitrogen etc. in air therein
Impurity if the higher or pressure of sample gas value is higher, can suitably turn down the control valve 8 of flowmeter 6, if sample gas pressure
Relatively low, flow velocity is slower, then needs out the control valve 8 of large capacity meter 6, to eliminate the problem of sample gas lags due to flow velocity is slow.
After treating sample gas analysis, multiple-way valve handle is rotated, the flow that adjustment metering valve 7 is controlled into analyzer 1 can be realized
Analysis to another way sample gas, while remaining each road sample gas can be purged, eliminate " hysteresis " phenomenon of sampling.
The utility model can realize multichannel sample gas and the connection of an analyzer, by rotating the handle of multiple-way valve 4 i.e.
Being switched fast for different sample gas can be achieved, improve sample gas switching efficiency, while sample gas alias condition will not occur；It is logical
The flowmeter 6 that crossing has and purged with atm number, which can be realized, to be purged and puts to the thorough of the gaseous impurities such as oxygen, nitrogen in branch pipe(tube) 5
It changes, ensure that the accuracy of gas analysis data.
Claims (2)
1. a kind of gas analysis samples switching system, including analyzer（1）With analyzer（1）Injection port connection main pipeline
（2）Be installed on main pipeline（2）On filter（3）；It is characterized in that：It further includes multiple-way valve（4）, multichannel sample gas passes through
Respective branch pipe(tube)（5）With multiple-way valve（4）Different imports connection, multiple-way valve（4）Outlet and main pipeline（2）Connection；Every
Branch pipe(tube)（5）On flowmeter is installed（6）.
2. a kind of gas analysis sampling switching system as described in claim 1, it is characterised in that：The analyzer（1）And mistake
Filter（3）Between main pipeline（2）On metering valve is installed（7）；The flowmeter（6）In be built-in with flow control valve（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721661612.0U CN207439765U (en) | 2017-12-04 | 2017-12-04 | A kind of gas analysis samples switching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721661612.0U CN207439765U (en) | 2017-12-04 | 2017-12-04 | A kind of gas analysis samples switching system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207439765U true CN207439765U (en) | 2018-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721661612.0U Expired - Fee Related CN207439765U (en) | 2017-12-04 | 2017-12-04 | A kind of gas analysis samples switching system |
Country Status (1)
| Country | Link |
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| CN (1) | CN207439765U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186723A (en) * | 2019-06-19 | 2019-08-30 | 山东大学 | Fine particle sampling device, sampling system and method for aircraft aerial survey |
| CN110186722A (en) * | 2019-06-19 | 2019-08-30 | 山东大学 | Convenient for gaseous pollutant sample introduction mechanism, sampling system and the method for aircraft aerial survey |
| CN112432823A (en) * | 2020-11-11 | 2021-03-02 | 上海邦有道商贸有限公司 | Sampling system for natural gas outward transportation main pipe |
| CN113063488A (en) * | 2021-03-22 | 2021-07-02 | 南京君之晔科技有限公司 | Ultrafast automatic sampling switching system |
| CN113432933A (en) * | 2021-06-16 | 2021-09-24 | 中船动力研究院有限公司 | Air pressure dynamic adjusting device |
| CN115236273A (en) * | 2022-06-23 | 2022-10-25 | 北京京仪大气环保科技有限公司 | Multi-gas-path valve box for gas analyzer |
-
2017
- 2017-12-04 CN CN201721661612.0U patent/CN207439765U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186723A (en) * | 2019-06-19 | 2019-08-30 | 山东大学 | Fine particle sampling device, sampling system and method for aircraft aerial survey |
| CN110186722A (en) * | 2019-06-19 | 2019-08-30 | 山东大学 | Convenient for gaseous pollutant sample introduction mechanism, sampling system and the method for aircraft aerial survey |
| CN112432823A (en) * | 2020-11-11 | 2021-03-02 | 上海邦有道商贸有限公司 | Sampling system for natural gas outward transportation main pipe |
| CN113063488A (en) * | 2021-03-22 | 2021-07-02 | 南京君之晔科技有限公司 | Ultrafast automatic sampling switching system |
| CN113432933A (en) * | 2021-06-16 | 2021-09-24 | 中船动力研究院有限公司 | Air pressure dynamic adjusting device |
| CN115236273A (en) * | 2022-06-23 | 2022-10-25 | 北京京仪大气环保科技有限公司 | Multi-gas-path valve box for gas analyzer |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20201204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |