CN201508324U - Integrated gas control device - Google Patents
Integrated gas control device Download PDFInfo
- Publication number
- CN201508324U CN201508324U CN 200920222320 CN200920222320U CN201508324U CN 201508324 U CN201508324 U CN 201508324U CN 200920222320 CN200920222320 CN 200920222320 CN 200920222320 U CN200920222320 U CN 200920222320U CN 201508324 U CN201508324 U CN 201508324U
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- CN
- China
- Prior art keywords
- gas
- input end
- acetylene
- air
- nitrous oxide
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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.)
- Expired - Lifetime
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Abstract
The utility model discloses an integrated gas control device, which is characterized in that a gas input end connected with an atomization cylinder comprises an air input end, a nitrous oxide input end, a natural gas input end and an acetylene input end, and the input of four gases and the output of three combined gases combined by two of the four gases are controlled, i.e. air, nitrous oxide gas (laughing gas), acetylene gas and natural gas are output, the three output combined gases are that: air-acetylene, nitrous oxide gas (laughing gas)-acetylene and air-natural gas; a gas path system has the following control functions: the automatic switching of the output combined gases can be achieved, and the pressure of at least three gases is monitored, the flow of two gases is controlled, the right gas combination can be selected according to the results of pressure monitoring, and the turning on and off of valves are controlled so as to ensure the output functions of the right gas combination; and when the flame of the mixed gas of nitrous oxide gas (laughing gas) and acetylene gas is extinguished, bypass air is controlled so as to increase the gas flow to quickly extinguish the flame.
Description
Technical field
The utility model relates to a kind of gas control system, especially a kind of integrated gas control device that is used for flame atomic absorption spectrophotometer.
Background technology
Present flame atomic absorption spectrophotometer is widely used in fields such as medical treatment, metallurgy, chemical industry, food and carries out trace and trace element analysis, but because the limited analysis that only can realize kind of element surplus in the of 30 of air-acetylene torch temperature, if and increase the flame method of nitrous oxide (laughing gas)-acetylene torch, then can be with the surplus kind of analytical element expanded range to 70 of atomic absorption spectrophotometer (AAS).Though atomic absorption spectrophotometer (AAS) in the market can be expanded laughing gas acetylene torch or other thermal-flame functions, generally need an external air distributing device, use very inconvenient, simultaneously because the control mode problem causes maloperation or tempering easily.
The utility model content
(1) technical matters that will solve
The utility model is the defective at prior art, and a kind of integrated gas control equipment is provided, and is built in instrument internal, and increases the integrated air-channel system of multiple monitoring and control device.
(2) technical scheme
The technical scheme that its technical matters that solves the utility model adopts is: integrated gas control device, its structure comprise atomizing cup, gas input end; The described gas input end that is connected with atomizing cup comprises three kinds of gas input ends at least.
Wherein, described gas input end is air input end, nitrous oxide input end, rock gas input end, acetylene input end.
Wherein, form pipeline by air valve with throttling valve is connected atomizing cup to described air input end on the one hand, forms another road pipeline by transfer valve, oxidant stress switch on the other hand and is connected on the atomizer of atomizing cup; Described nitrous oxide input end is connected on the transfer valve by the nitrous oxide pressure switch; Described acetylene input end is formed one pipeline by acetylene pressure transducer, acetylene valve, throttling valve, mass flowmeter and is connected atomizing cup; Described rock gas input end is connected in parallel between throttling valve, the mass flowmeter by natural air valve.
Wherein, various combination is carried out in described four kinds of gases input, forms three kinds of mixed gass that can be used for burning, air-acetylene, nitrous oxide-acetylene, air-rock gas.
The utility model comprises four kinds of gas inputs, three kinds of mixed gas array outputs that mix are in twos monitored the pressure of three kinds of gases, according to monitored results the break-make of valve are controlled, flow to two kinds of gases is controlled, and opens bypass air and put out flame rapidly when fray-out of flame.Described four kinds of gases comprise air, nitrous oxide gas (laughing gas), acetylene gas and rock gas; Described three kinds of mixed gas combinations that mix in twos comprise air-acetylene, nitrous oxide gas (laughing gas)-acetylene and air-rock gas; Described three kinds of monitored gaseous tensions comprise the pressure of air, nitrous oxide gas (laughing gas) and acetylene gas; Described pressure monitor data and control mixed gas array mode comprise the pressure of monitoring nitrous oxide gas (laughing gas) and acetylene gas, to determine that the mixed gas array mode is air-acetylene or nitrous oxide gas (laughing gas)-acetylene; Described flow to two kinds of gas is controlled the flow that comprises control acetylene gas and rock gas; Open bypass air during described fray-out of flame and put out flame rapidly and comprise and nitrous oxide gas (laughing gas)-when acetylene torch extinguishes, open bypass air increase gas flow, put out flame rapidly.
(3) beneficial effect
Integrated gas control device of the present utility model is compared with prior art, has following beneficial effect:
The utility model is with four kinds of gases, and three kinds of mixed gas combinations are integrated in the same gas control system, have reduced external air distributing device, make operation more easy.Three kinds of mixed gas array modes of four kinds of gases are integrated into also are convenient to monitor gaseous tension in the same gas control system, the pilot-gas flow prevents that phenomenon such as maloperation from taking place, and strengthened the security of atomic absorption flame method.
Description of drawings
Accompanying drawing is the structural representation of integrated gas control device of the present utility model.
Among the figure: 1, air valve, 2, throttling valve, 3, the nitrous oxide pressure switch, 4, transfer valve, 5, oxidant stress switch, 6, natural air valve, 7, the acetylene pressure transducer, 8, acetylene valve, 9, throttling valve, 10, mass flowmeter, 11, atomizer, 12, pipeline, 13, pipeline, 14, atomizing cup, 15, flame, 16, air, 17, nitrous oxide, 18, rock gas, 19, acetylene.
Embodiment
Next with reference to Figure of description integrated gas control device of the present utility model is made the following instructions.
Integrated gas control device of the present utility model, as shown in the figure, its structure comprises atomizing cup 14, gas input end; The gas of the described gas input end that is connected with atomizing cup 14 is air 16, nitrous oxide 17, rock gas 18, acetylene 19.Wherein, form pipeline 12 by air valve 1 with throttling valve 2 is connected atomizing cup to described air input end on the one hand, forms another road pipeline by transfer valve 4, oxidant stress switch 5 on the other hand and is connected on the atomizer 11 of atomizing cup; Described nitrous oxide 17 input ends are connected on the transfer valve 4 by nitrous oxide pressure switch 3.Wherein, described acetylene 19 input ends are connected atomizing cup 14 by acetylene pressure transducer 7, acetylene valve 8, throttling valve 9, one pipeline 13 of mass flowmeter 10 compositions; Described rock gas 18 input ends are connected in parallel between throttling valve 9, the mass flowmeter 10 by natural air valve 6.
Four kinds of gas inputs are arranged, and air, nitrous oxide gas (laughing gas), acetylene gas and rock gas after wherein two kinds of gases of air and nitrous oxide are selected by transfer valve 4, enter atomizer 11, participate in burning.Two kinds of gases of rock gas and acetylene 13 enter atomizing cup 14 participation burnings by the road.Four kinds of gases are combined into three kinds of combination gas types in twos: air-acetylene, nitrous oxide gas (laughing gas)-acetylene and air-rock gas, and to adapt to the analysis needs of different elements.
When nitrous oxide (laughing gas)-when acetylene torch is lighted, any one pressure transducer is reported to the police, all extinguish nitrous oxide (laughing gas)-acetylene torch automatically, when flame-out, operation transfer valve 4 and is opened bypass air valve 1, and the air mass flow that will configure through throttling valve 2 is 12 injection atomizing cups 14 by the road, close acetylene valve 8 then, make flame extinguishing of safety rapidly.
Acetylene gas and rock gas are respectively by valve 8 and valve 6 control break-makes, and shared same mass flowmeter 10 Control Flow, and 13 injection atomizing cups 14 participate in burning by the road then.Herein, acetylene valve 8 and natural air valve 6 can not be opened simultaneously, and the acetylene flow is limited within the safe traffic scope at throttling valve 9 places.
The above embodiment is a kind of of the more preferably concrete embodiment of the utility model, and common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacement all should be included in the protection domain of the present utility model.
Claims (3)
1. integrated gas control device, it is characterized in that: its structure comprises atomizing cup, gas input end; The described gas input end that is connected with atomizing cup comprises three kinds of gas input ends at least.
2. integrated gas control device according to claim 1 is characterized in that: described gas input end is air input end, nitrous oxide input end, rock gas input end, acetylene input end.
3. integrated gas control device according to claim 2, it is characterized in that: form pipeline by air valve with throttling valve is connected atomizing cup to described air input end on the one hand, forms another road pipeline by transfer valve, oxidant stress switch on the other hand and is connected on the atomizer of atomizing cup; Described nitrous oxide input end is connected on the transfer valve by the nitrous oxide pressure switch; Described acetylene input end is formed one pipeline by acetylene pressure transducer, acetylene valve, throttling valve, mass flowmeter and is connected atomizing cup; Described rock gas input end is connected in parallel between throttling valve, the mass flowmeter by natural air valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920222320 CN201508324U (en) | 2009-09-01 | 2009-09-01 | Integrated gas control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920222320 CN201508324U (en) | 2009-09-01 | 2009-09-01 | Integrated gas control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201508324U true CN201508324U (en) | 2010-06-16 |
Family
ID=42469451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920222320 Expired - Lifetime CN201508324U (en) | 2009-09-01 | 2009-09-01 | Integrated gas control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201508324U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940508A (en) * | 2013-01-21 | 2014-07-23 | 北京瑞利分析仪器有限公司 | Manual control air passage adjusting system of portable atomic absorption spectrometer |
| CN104198629A (en) * | 2014-09-12 | 2014-12-10 | 广西电网公司电力科学研究院 | Automatic carrier gas switching device for transformer oil chromatography monitoring system |
| GB2574674A (en) * | 2018-06-15 | 2019-12-18 | Thermo Fisher Scient Bremen Gmbh | Flame module |
-
2009
- 2009-09-01 CN CN 200920222320 patent/CN201508324U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940508A (en) * | 2013-01-21 | 2014-07-23 | 北京瑞利分析仪器有限公司 | Manual control air passage adjusting system of portable atomic absorption spectrometer |
| CN104198629A (en) * | 2014-09-12 | 2014-12-10 | 广西电网公司电力科学研究院 | Automatic carrier gas switching device for transformer oil chromatography monitoring system |
| GB2574674A (en) * | 2018-06-15 | 2019-12-18 | Thermo Fisher Scient Bremen Gmbh | Flame module |
| GB2574674B (en) * | 2018-06-15 | 2020-10-28 | Thermo Fisher Scient Bremen Gmbh | Flame module |
| US11953203B2 (en) | 2018-06-15 | 2024-04-09 | Thermo Fisher Scientific (Bremen) Gmbh | Flame module for a spectrometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100616 |
|
| CX01 | Expiry of patent term |