CN105548418A - Movable carrier gas supply system - Google Patents
Movable carrier gas supply system Download PDFInfo
- Publication number
- CN105548418A CN105548418A CN201610024929.7A CN201610024929A CN105548418A CN 105548418 A CN105548418 A CN 105548418A CN 201610024929 A CN201610024929 A CN 201610024929A CN 105548418 A CN105548418 A CN 105548418A
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- CN
- China
- Prior art keywords
- valve
- gas
- carrier gas
- portable
- button
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N2030/285—Control of physical parameters of the fluid carrier electrically driven carrier
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
- G01N2030/328—Control of physical parameters of the fluid carrier of pressure or speed valves, e.g. check valves of pumps
Abstract
The invention provides a movable carrier gas supply system which comprises a carrier gas unit, a two-position three-way switching valve, a pressure sensor, a purifier, a portable chromatographic instrument, a gas channel and a control unit. The carrier gas unit, the switching valve, the pressure sensor, the purifier and the portable chromatographic instrument are sequentially communicated through the gas channel. The carrier gas unit comprises a gas bottle A and a gas bottle B. The gas bottle A and the gas bottle B are communicated with two inlet ends of the switching valve respectively. The switching valve and the pressure sensor are connected with the control unit. The system solves the problems that carrying is inconvenient, carrier gas bottles are tedious to replace, and impurities are introduced easily in the prior art.
Description
Technical field
The present invention is specifically related to a kind of portable carrier gas feed system.
Background technology
Carrier gas feed system, as the source of the gas of portable gas chromatograph, must possess stable, uninterrupted, portable feature.The carrier gas system that existing gas chromatograph is equipped with, or be fixedly installed in laboratory as desk-top chromatograph source of the gas; Direct and chromatograph is put in draw-bar box as portable chromatograph source of the gas, open bottle valve air feed when needing, be finished after manual dismounting joint replacing gas cylinder again, above-mentioned two kinds all exist not Portable belt, change gas cylinder loaded down with trivial details, there is drawbacks such as introducing impurity hidden danger, be unfavorable for on-the-spot gas chromatographic detection everything goes well with your work carrying out.
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of portable carrier gas feed system.
The present invention is achieved in that a kind of portable carrier gas feed system, comprises carrier gas unit, two-position three way formula transfer valve, pressure transducer, purifier, portable chromatograph, gas circuit and a control module; Described carrier gas unit, transfer valve, pressure transducer, purifier, portable chromatograph are communicated with by described gas circuit successively; Described carrier gas unit comprises gas cylinder A and gas cylinder B, and described gas cylinder A and gas cylinder B are communicated with the two-way entrance point of transfer valve respectively; Described transfer valve is connected with control module respectively with pressure transducer.
Further, also comprise emptying unit and a gas admittance valve, described emptying unit comprises a throttling valve and a switch valve; Described gas admittance valve is located in described gas circuit, and between purifier and pressure transducer; Described throttling valve is positioned at the front of gas admittance valve, and one end of this throttling valve is communicated with described gas circuit, and the other end is connected to switch valve; Another road of described switch valve is communicated with an evacuated tube, and this switch valve is connected with control module.
Further, described control module comprises a guidance panel and is built in the single-chip microcomputer in guidance panel, and described guidance panel comprises the button A, button B, the switch valve knob that are all connected with single-chip microcomputer; Described button A and button B is control linkage transfer valve respectively; Described switch valve knob control linkage switch valve.
Further, described guidance panel also comprises the change-over switch be connected with single-chip microcomputer, and described change-over switch is control linkage button A, button B and switch valve knob respectively.
Further, described guidance panel also comprises at least one display screen, pilot lamp A, the pilot lamp B that are all connected with single-chip microcomputer.
Further, also comprise a trolley, described purifier, portable chromatograph, gas cylinder A, gas cylinder B and control module are all positioned on trolley.
The invention has the advantages that: the problem solving the not Portable belt of prior art existence, loaded down with trivial details, the easy introducing impurity of carrier gas bottle replacing.
Accompanying drawing explanation
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structural representation of a kind of portable carrier gas feed system of the present invention.
Embodiment
Refer to shown in Fig. 1, a kind of portable carrier gas feed system 100, comprises carrier gas unit 1, two-position three way formula transfer valve 2, pressure transducer 3, purifier 4, portable chromatograph 5, gas circuit 6, control module (not shown), emptying unit 7, gas admittance valve 71 and a trolley 8;
Referring again to Fig. 1, described carrier gas unit 1, transfer valve 2, pressure transducer 3, purifier 4, portable chromatograph 5 are communicated with by described gas circuit 6 successively; Described carrier gas unit 1 comprises gas cylinder A and gas cylinder B, and described gas cylinder A and gas cylinder B are communicated with the two-way entrance point of transfer valve 2 respectively; Described transfer valve 2 is connected with control module respectively with pressure transducer 3.Two-position three way formula transfer valve 2 is two enter one and go out formula solenoid valve, during transfer valve 2 power-off of two-position three way formula, and gas cylinder A air feed, when transfer valve 2 powers on, gas cylinder B air feed.Gas cylinder A and gas cylinder B is equipped with high-purity helium.Described purifier 4, portable chromatograph 5, gas cylinder A, gas cylinder B and control module are all positioned on trolley 8.
Referring again to Fig. 1, described emptying unit 7 comprises a throttling valve 72 and a switch valve 73; Described gas admittance valve 71 is located in described gas circuit 6, and between purifier 4 and pressure transducer 3; Described throttling valve 72 is positioned at the front of gas admittance valve 71, and one end of this throttling valve 72 is communicated with described gas circuit 6, and the other end is connected to switch valve 73; Another road of described switch valve 73 is communicated with an evacuated tube 74, and this switch valve 73 is connected with control module.Switch valve 73 is one-in-and-one-out formula two-position three way magnetic valve, and when switch valve 73 power-off, switch valve 73 is in sealing state.
Referring again to Fig. 1, the single-chip microcomputer (not shown) that described control module comprises a guidance panel 9 and is built in guidance panel 9; Described guidance panel 9 comprise all be connected with single-chip microcomputer button A91, button B92, switch valve knob 93, change-over switch 95, at least one display screen 96, pilot lamp A97 and pilot lamp B98.Described button A91 and button B92 is control linkage transfer valve 2 respectively; Described switch valve knob 93 control linkage switch valve 73; Under button A91, button B92 are used for manual mode, operation controls gas cylinder A air feed, gas cylinder B air feed respectively, and switch valve knob 93 is for gauge tap valve 73 switching electricity.Described change-over switch 95 is control linkage button A91, button B92 and switch valve knob respectively, change-over switch 95 is for switching operation modes, under manual mode, button A91, button B92 and switch valve knob 93 3 push button function are enabled, above-mentioned 3 push button function forbidding under automatic mode.Described display screen 96 for show gas cylinder A, gas cylinder B for gaseity and atmospheric pressure value; Whether pilot lamp A97 and pilot lamp B98 is respectively used to display gas cylinder A, gas cylinder B just at air feed, and the bright expression of lamp is in for gaseity.
Referring again to Fig. 1, when application work of the present invention is that operation steps is as follows:
Step one: be assemblied on trolley 8 by purifier 4, portable chromatograph 5, gas cylinder A, gas cylinder B and control module, after initial gas circuit 6 has connected, closes gas admittance valve 71, the cylinder valve A of the gas cylinder A that outwards winding;
Step 2: guidance panel 9 powers on, press switch valve 73 button, switch valve 73 powers on, and gas circuit 6 breaker in middle valve 73 accesses evacuated tube and starts to drain residual air in pipeline, closes after 5 seconds, and switch valve 73 power-off is in sealing state, completes emptying;
Step 3: gas admittance valve 71 and purifier 4 in opening gas circuit 6, in gas cylinder A, carrier gas starts to flow into portable chromatograph 5;
Step 4: when the atmospheric pressure value that pressure transducer 3 detects in gas circuit 6 requires lower than portable chromatograph 5 air pressure, Single-chip Controlling transfer valve 2 powers on, gas cylinder B accesses gas circuit 6, gas cylinder A is replaced to continue air feed, reach the object of continuous air feed, display screen 96 sends early warning simultaneously, reminds user to change gas cylinder;
Step 5: when pressure transducer 3 detects atmospheric pressure value again lower than the requirement of portable gas chromatograph air pressure, Single-chip Controlling transfer valve 2 power-off, gas cylinder A accesses gas circuit 6, replaces gas cylinder B to continue air feed, according to this back and forth.
The present invention can avoid the problem changed the loaded down with trivial details of gas cylinder in Site Detection and introduce impurity; By being mounted on trolley 8 by package unit, overcome unhandy problem in heavy, the operation process of equipment that prior art exists.
Claims (6)
1. a portable carrier gas feed system, is characterized in that: comprise carrier gas unit, two-position three way formula transfer valve, pressure transducer, purifier, portable chromatograph, gas circuit and a control module; Described carrier gas unit, transfer valve, pressure transducer, purifier, portable chromatograph are communicated with by described gas circuit successively; Described carrier gas unit comprises gas cylinder A and gas cylinder B, and described gas cylinder A and gas cylinder B are communicated with the two-way entrance point of transfer valve respectively; Described transfer valve is connected with control module respectively with pressure transducer.
2. a kind of portable carrier gas feed system as claimed in claim 1, is characterized in that: also comprise emptying unit and a gas admittance valve, and described emptying unit comprises a throttling valve and a switch valve; Described gas admittance valve is located in described gas circuit, and between purifier and pressure transducer; Described throttling valve is positioned at the front of gas admittance valve, and one end of this throttling valve is communicated with described gas circuit, and the other end is connected to switch valve; Another road of described switch valve is communicated with an evacuated tube, and this switch valve is connected with control module.
3. a kind of portable carrier gas feed system as claimed in claim 2, it is characterized in that: described control module comprises a guidance panel and is built in the single-chip microcomputer in guidance panel, and described guidance panel comprises the button A, button B, the switch valve knob that are all connected with single-chip microcomputer; Described button A and button B is control linkage transfer valve respectively; Described switch valve knob control linkage switch valve.
4. a kind of portable carrier gas feed system as claimed in claim 3, is characterized in that: described guidance panel also comprises the change-over switch be connected with single-chip microcomputer, and described change-over switch is control linkage button A, button B and switch valve knob respectively.
5. a kind of portable carrier gas feed system as claimed in claim 3, is characterized in that: described guidance panel also comprises at least one display screen, pilot lamp A, the pilot lamp B that are all connected with single-chip microcomputer.
6. the portable carrier gas feed system of one as described in any of claims 1, is characterized in that: also comprise a trolley, and described purifier, portable chromatograph, gas cylinder A, gas cylinder B and control module are all positioned on trolley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610024929.7A CN105548418A (en) | 2016-01-15 | 2016-01-15 | Movable carrier gas supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610024929.7A CN105548418A (en) | 2016-01-15 | 2016-01-15 | Movable carrier gas supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105548418A true CN105548418A (en) | 2016-05-04 |
Family
ID=55827751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610024929.7A Pending CN105548418A (en) | 2016-01-15 | 2016-01-15 | Movable carrier gas supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105548418A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063563A (en) * | 2017-03-30 | 2017-08-18 | 江苏方天电力技术有限公司 | A kind of multrirange pressure-detecting device of solenoid valve control |
| CN109521129A (en) * | 2018-12-10 | 2019-03-26 | 黔西县黔希煤化工投资有限责任公司 | A kind of gas-chromatography carrier gas switching application method |
| CN110220110A (en) * | 2019-04-03 | 2019-09-10 | 阳江核电有限公司 | Carrier gas feeder for nuclear island hot laboratory gas chromatograph |
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2016
- 2016-01-15 CN CN201610024929.7A patent/CN105548418A/en active Pending
Patent Citations (11)
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| CN203421491U (en) * | 2013-08-20 | 2014-02-05 | 江苏津通先锋光电显示技术有限公司 | Two-channel gas supply device for vacuum coating |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063563A (en) * | 2017-03-30 | 2017-08-18 | 江苏方天电力技术有限公司 | A kind of multrirange pressure-detecting device of solenoid valve control |
| CN109521129A (en) * | 2018-12-10 | 2019-03-26 | 黔西县黔希煤化工投资有限责任公司 | A kind of gas-chromatography carrier gas switching application method |
| CN110220110A (en) * | 2019-04-03 | 2019-09-10 | 阳江核电有限公司 | Carrier gas feeder for nuclear island hot laboratory gas chromatograph |
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Application publication date: 20160504 |
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| WD01 | Invention patent application deemed withdrawn after publication |