CN207366326U - Gas sampling dynamic dilution system - Google Patents
Gas sampling dynamic dilution system Download PDFInfo
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- CN207366326U CN207366326U CN201721502695.9U CN201721502695U CN207366326U CN 207366326 U CN207366326 U CN 207366326U CN 201721502695 U CN201721502695 U CN 201721502695U CN 207366326 U CN207366326 U CN 207366326U
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- pipeline
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- sample gas
- valve
- inlet union
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Abstract
The utility model provides a kind of gas sampling dynamic dilution system, including：Carrier gas inlet union, flow controller, sample gas inlet union, filter, capillary throttling tube bank, threeway mixes valve, sample gas blow valve, sample gas is vented connector, heater, heat tracing device, temperature controller and chromatograph interface, the air inlet that carrier gas inlet union and sample gas inlet union mix valve by pipeline with threeway respectively is connected, flow controller is installed on carrier gas inlet union and threeway and mixes on the pipeline that valve is connected, filter and capillary throttling tube bank are installed on sample gas inlet union and threeway and mix on the pipeline that valve is connected, the gas outlet that threeway mixes valve is connected by pipeline with heater, heater is connected with heat tracing device by pipeline, the gas outlet of heat tracing device is connected by chromatograph interface with chromatograph.This gas sampling dynamic dilution system, it is possible to achieve the on-line dilution of sample introduction gas, improves the convenience and precision of analysis of gas sampling analysis.
Description
Technical field
It the utility model is related to gas detection equipment technical field, and in particular to a kind of gas sampling dynamic dilution system.
Background technology
Current experiment room Standard Gases are same things, it is necessary to various concentrations value, just must specialized factory press various concentrations demand
Configured, independently stored with memory respectively one by one, the drawback is that：1st, cause that the production cost increases；2nd, due to every kind of concentration
Standard gas be required for a memory, and most of these gases are all inflammable, explosive, toxic and harmful gas, are virtually increased
Production safety risk；3rd, after a kind of concentration standard gas has been analyzed, when carrying out next concentration standard gas analysis, it need to manually replace and connect
Connect, increase the labor intensity of analysis personnel, secondly issuable security risk during memory is replaced in increase.
Utility model content
In view of the deficiencies of the prior art, the utility model proposes a kind of gas sampling dynamic dilution system, it is possible to achieve
The on-line dilution of sample introduction gas, improves the convenience and precision of analysis of gas sampling analysis.
To realize above-mentioned technical proposal, the utility model provides a kind of gas sampling dynamic dilution system, including：Dilution
Gas inlet union, flow controller, sample gas inlet union, filter, capillary throttling tube bank, threeway mix valve, sample gas blow valve,
Sample gas emptying connector, heater, heat tracing device, temperature controller and chromatograph interface, the carrier gas inlet union pass through pipeline
The first air inlet that valve is mixed with threeway is connected, and flow controller mixes what valve was connected installed in carrier gas inlet union with threeway
On pipeline, sample gas inlet union is connected by the air inlet of pipe-and-filter, the gas outlet of the filter by pipeline with
The air inlet connection of capillary throttling tube bank, the gas outlet of capillary throttling tube bank by pipeline and threeway mix the second of valve into
Gas port connects, and the gas outlet that the threeway mixes valve is connected by the air inlet of pipeline and heater, the outlet of the heater
Mouth is connected by pipeline with the air inlet of heat tracing device, and the gas outlet of the heat tracing device is connected by chromatograph interface with chromatograph,
The signal end of temperature controller is connected with heater and heat tracing device respectively, and sample gas emptying connector is connected to sample gas import by pipeline
On the pipeline that connector is connected with filter, sample gas blow valve is installed on the pipeline that sample gas emptying connector is connected with sample gas inlet union
On.
, it is necessary to which diluted gaseous sample is entered by sample gas inlet union during actual sample introduction, and pass through filtering
Device removes impurity that may be present in sample gas, then by mixing valve into threeway after capillary throttling tube bank throttling, for diluting
The diluent gas of sample gas is entered by carrier gas inlet union, and it is laggard to carry out accurate quantification to diluent gas by flow controller
Enter threeway mix valve, sample gas and diluent gas threeway mix carried out in valve disturbance be uniformly mixed, subsequently into heater into
The quick heating of row, and the sample introduction temperature for being needed mixed gas progress temperature adjustment to the chromatograph after heating by heat tracing device
Degree, is analyzed, temperature controller can be with auto-control heater and heat tracing device finally by chromatograph interface into chromatograph
In firing rate and temperature, if sample gas is not reaching to sample introduction requirement, can directly open sample gas blow valve, will not meet will
The sample gas asked is directly from the emptying connector discharge of sample gas.Consequently, it is possible to can not only realize the automatic on-line dilution of sample gas, and can
By the automatic temperature-controlled of heater, heat tracing device and temperature controller, the gas after dilution can be caused to reach optimal sample introduction
Temperature, so as to improve sample gas precision of analysis.
Preferably, this gas sampling dynamic dilution system further includes backwashing system, and the backwashing system is by backwashing
Pump, backwash valve and pipeline composition, backwashing pump are connected to sample gas inlet union by pipeline and are vented what connector was connected with sample gas
On pipeline, backwash valve is installed on the pipeline that backwashing pump is connected with sample gas inlet union, after chromatograph detects, is beaten
Backwashing pump and backwash valve are opened, nitrogen enters whole system pipeline by backwashing pump, realizes to the timely clear of system pipeline
Wash, so as to effectively prevent system pipeline from blocking and prevent sample component from being adsorbed by pipeline.
Preferably, the air outlet of the sample gas emptying connector is connected with emission-control equipment, to exhaust gas
Reason, prevents the exhaust emission environment of discharge.
Preferably, the sample gas inlet union is pagoda type ferrule fitting, facilitates sample gas inlet union and external equipment
Docking.
A kind of beneficial effect of gas sampling dynamic dilution system provided by the utility model is：This gas sampling dynamic
Dilution system is simple in structure, passes through carrier gas inlet union, flow controller, sample gas inlet union, filter, capillary throttle pipe
Beam, threeway mix cooperation between valve, sample gas blow valve, heater, heat tracing device, temperature controller and chromatograph interface, not only
It can realize that accurately automatic on-line dilutes sample gas, and the automatic warm of heater, heat tracing device and temperature controller can be passed through
Control, can cause the gas after dilution to reach optimal injector temperature, so as to improve sample gas precision of analysis.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure：1st, carrier gas inlet union；2nd, flow controller；3rd, sample gas inlet union；4th, filter；5th, capillary throttles
Tube bank；6th, threeway mixes valve；7th, sample gas emptying connector；8th, heater；9th, heat tracing device；10th, temperature controller；11st, chromatograph connects
Mouthful；12nd, backwashing pump；13rd, backwash valve；14th, sample gas blow valve.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clear, complete description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Ordinary people in the field's all other embodiments obtained without making creative work, belong to
The scope of protection of the utility model.
Embodiment：A kind of gas sampling dynamic dilution system.
With reference to shown in Fig. 1, a kind of gas sampling dynamic dilution system, including：Carrier gas inlet union 1, flow controller
2nd, sample gas inlet union 3, filter 4, capillary throttling tube bank 5, threeway mix valve 6, sample gas emptying connector 7, sample gas blow valve 14,
Heater 8, heat tracing device 9, temperature controller 10 and chromatograph interface 11, the carrier gas inlet union 1 pass through pipeline and threeway
The first air inlet connection of mixed dynamic valve 6, flow controller 2 are installed on carrier gas inlet union 1 and threeway and mix the pipe that valve 6 is connected
On road, sample gas inlet union 3 is connected by the air inlet of pipe-and-filter 4, the gas outlet of the filter 4 by pipeline with
The air inlet connection of capillary throttling tube bank 5, the gas outlet of capillary throttling tube bank 5 mix the of valve 6 by pipeline and threeway
Two air inlets connect, and the gas outlet that the threeway mixes valve 6 is connected by pipeline with the air inlet of heater 8, the heater 8
Gas outlet be connected by pipeline with the air inlet of heat tracing device 9, the gas outlet of the heat tracing device 9 passes through chromatograph interface 11 and color
Spectrometer connects, and the signal end of temperature controller 10 is connected with heater 8 and heat tracing device 9 respectively, and sample gas emptying connector 7 passes through pipeline
It is connected on the pipeline that sample gas inlet union 3 is connected with filter 4, sample gas blow valve 14 is installed on sample gas emptying connector 7 and sample
On the pipeline that gas inlet union 3 connects.
The operation principle of the utility model is：Need diluted gaseous sample to enter by sample gas inlet union 3, and pass through
Filter 4 removes impurity that may be present in sample gas, then by mixing valve 6, hair into threeway after 5 throttling of capillary throttling tube bank
The effect of details flowing bundle 5 is to strengthen the disturbance of sample introduction gas, and carries out exact restriction to sample gas, so that sample gas and dilution
Gas mixes more uniform in follow-up threeway mixes valve 6, and the diluent gas for diluted sample gas passes through carrier gas import
Connector 1 enters, and valve 6, sample gas and carrier gas are mixed into threeway after flow controller 2 carries out accurate quantification to diluent gas
Body is mixed to carry out disturbing in valve 6 and is uniformly mixed in threeway, is quickly heated subsequently into heater 8 is interior, and pass through heat tracing
The injector temperature that device 9 needs the mixed gas progress temperature adjustment after heating to chromatograph, finally by chromatograph interface 11
Analyzed into chromatograph, temperature controller 10 can be with the firing rate and temperature in auto-control heater 8 and heat tracing device 9
Degree, if sample gas is not reaching to sample introduction requirement, can directly open sample gas blow valve 14, by undesirable sample gas directly from
Sample gas emptying connector 7 is discharged.Consequently, it is possible to can not only realize the automatic on-line dilution of sample gas, and heater can be passed through
8th, heat tracing device 9 and temperature controller 10 is automatic temperature-controlled, and the gas after dilution can be caused to reach optimal injector temperature, so that
Improve sample gas precision of analysis.
With reference to shown in Fig. 1, this gas sampling dynamic dilution system further includes backwashing system, and the backwashing system is by anti-
Flushing pump 12, backwash valve 13 and pipeline composition, backwashing pump 12 are connected to sample gas inlet union 3 by pipeline and are vented with sample gas
On the pipeline that connector 7 connects, backwash valve 13 is installed on the pipeline that backwashing pump 12 is connected with sample gas inlet union 3, works as color
After spectrometer detects, backwashing pump 12 and backwash valve 13 are opened, nitrogen enters whole system pipeline by backwashing pump 12,
The timely cleaning to system pipeline is realized, so as to effectively prevent system pipeline from blocking and prevent sample component from being adsorbed by pipeline.
In the present embodiment, the air outlet of sample gas emptying connector 7 is connected with emission-control equipment, so as to exhaust gas into
Row processing, prevents the exhaust emission environment of discharge.
In the present embodiment, the sample gas inlet union 3 is pagoda type ferrule fitting, facilitates sample gas inlet union 3 and outside
The docking of equipment.
The above be the utility model preferred embodiment, but the utility model should not be limited to the embodiment and
Attached drawing disclosure of that, so every do not depart from the lower equivalent or modification completed of spirit disclosed in the utility model, all falls
Enter the scope of the utility model protection.
Claims (4)
- A kind of 1. gas sampling dynamic dilution system, it is characterised in that including：Carrier gas inlet union, flow controller, sample gas Inlet union, filter, capillary throttling tube bank, threeway mix valve, sample gas blow valve, sample gas emptying connector, heater, heat tracing Device, temperature controller and chromatograph interface, the carrier gas inlet union mix the first air inlet of valve by pipeline and threeway Connection, flow controller are installed on carrier gas inlet union and threeway and mix on the pipeline that valve is connected, and sample gas inlet union passes through The air inlet connection of pipe-and-filter, the gas outlet of the filter are connected by the air inlet of pipeline and capillary throttling tube bank Connect, the second air inlet that the gas outlet that the capillary throttling is restrained mixes valve by pipeline with threeway is connected, and the threeway mixes The gas outlet of valve is connected by the air inlet of pipeline and heater, the gas outlet of the heater by pipeline and heat tracing device into Gas port connects, and the gas outlet of the heat tracing device is connected by chromatograph interface with chromatograph, the signal end difference of temperature controller It is connected with heater and heat tracing device, sample gas is vented connector and is connected to the pipeline that sample gas inlet union is connected with filter by pipeline On, sample gas blow valve is installed on the pipeline that sample gas emptying connector is connected with sample gas inlet union.
- 2. gas sampling dynamic dilution system as claimed in claim 1, it is characterised in that：Backwashing system is further included, it is described Backwashing system is made of backwashing pump, backwash valve and pipeline, backwashing pump by pipeline be connected to sample gas inlet union with On the pipeline of sample gas emptying connector connection, backwash valve is installed on the pipeline that backwashing pump is connected with sample gas inlet union.
- 3. gas sampling dynamic dilution system as claimed in claim 1, it is characterised in that：The outlet of the sample gas emptying connector Port is connected with emission-control equipment.
- 4. gas sampling dynamic dilution system as claimed in claim 1, it is characterised in that：The sample gas inlet union is pagoda Formula ferrule fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721502695.9U CN207366326U (en) | 2017-11-13 | 2017-11-13 | Gas sampling dynamic dilution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721502695.9U CN207366326U (en) | 2017-11-13 | 2017-11-13 | Gas sampling dynamic dilution system |
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| Publication Number | Publication Date |
|---|---|
| CN207366326U true CN207366326U (en) | 2018-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721502695.9U Expired - Fee Related CN207366326U (en) | 2017-11-13 | 2017-11-13 | Gas sampling dynamic dilution system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780015A (en) * | 2018-07-31 | 2020-02-11 | 西安市宇驰检测技术有限公司 | Detection device and detection method for non-methane total hydrocarbons |
| CN112384798A (en) * | 2018-07-26 | 2021-02-19 | 英福康有限责任公司 | Method for adjusting the concentration of a sample gas in a gas mixture to be analyzed by means of a gas chromatograph assembly, and gas chromatograph assembly |
| CN112505205A (en) * | 2020-12-18 | 2021-03-16 | 南京霍普斯科技有限公司 | High-concentration sample gas online analysis system and high-concentration sample gas online analysis method |
-
2017
- 2017-11-13 CN CN201721502695.9U patent/CN207366326U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112384798A (en) * | 2018-07-26 | 2021-02-19 | 英福康有限责任公司 | Method for adjusting the concentration of a sample gas in a gas mixture to be analyzed by means of a gas chromatograph assembly, and gas chromatograph assembly |
| JP2021531471A (en) * | 2018-07-26 | 2021-11-18 | インフィコン ゲゼルシャフト ミット ベシュレンクテル ハフツングInficon GmbH | A method for adjusting the concentration of sample gas in a gas mixture analyzed by a gas chromatograph assembly and the chromatograph assembly used for this method. |
| JP7359838B2 (en) | 2018-07-26 | 2023-10-11 | インフィコン ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method for adjusting the concentration of a sample gas in a gas mixture analyzed by a gas chromatograph assembly and the chromatograph assembly used therefor |
| CN112384798B (en) * | 2018-07-26 | 2024-02-09 | 英福康有限责任公司 | Method for adjusting concentration of sample gas and gas chromatograph assembly |
| US11982651B2 (en) | 2018-07-26 | 2024-05-14 | Inficon Gmbh | Method for adapting the concentration of a sample gas in a gas mixture to be analysed by a gas chromatograph assembly, and chromatograph assembly therefore |
| CN110780015A (en) * | 2018-07-31 | 2020-02-11 | 西安市宇驰检测技术有限公司 | Detection device and detection method for non-methane total hydrocarbons |
| CN112505205A (en) * | 2020-12-18 | 2021-03-16 | 南京霍普斯科技有限公司 | High-concentration sample gas online analysis system and high-concentration sample gas online analysis method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180515 Termination date: 20191113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |