CN103234631B - Flame-out protection device of flamephotometer - Google Patents
Flame-out protection device of flamephotometer Download PDFInfo
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- CN103234631B CN103234631B CN201310167158.3A CN201310167158A CN103234631B CN 103234631 B CN103234631 B CN 103234631B CN 201310167158 A CN201310167158 A CN 201310167158A CN 103234631 B CN103234631 B CN 103234631B
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- pipeline
- flame
- flamephotometer
- protection device
- out protection
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- Control Of Combustion (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to a flame-out protection device of a flamephotometer. The flame-out protection device comprises an inlet pipeline (1) and is characterized in that the output end of the inlet pipeline (1) is connected with an ignition pipeline (2) and a combustion pipeline (3), a main pipeline of the inlet pipeline (1) connected with the ignition pipeline (2) and the combustion pipeline (3) is sequentially provided with an electromagnetic valve (4) and a reversing rod (5), and the electromagnetic valve (4) is controlled by a thermoelectric coupling (6). The flame-out protection device disclosed by the invention ensures that the electromagnetic valve is closed and liquefied gas is switched off after the flamephotometer flames out, so that the danger that the liquefied gas leaks out is avoided, and the safety performance of the flamephotometer during use is improved.
Description
Technical field
Present disclosure elemental analysis instrument field, specifically just relates to a kind of flame-out protection device of flamephotometer.
Background technology
Flame photometer take emission spectrum as a kind of analytical instrument of ultimate principle.Comprise: gas and flame combustion part, opticator, photoelectric commutator and detection record part.Its process by atomizer, sample is sprayed into flame, stimulated luminescence, and by detectors measure emissive porwer after light splitting, the latter is directly proportional to constituent content to be measured in sample.As: when salt is placed in flame photometer, flame is in yellow, and this is the heat energy due to the sodium atom outer-shell electron absorption flame in salt, and transits to excited energy level, then when returning to normal condition by excited energy level, electronics will release energy.The sign formula of this energy launch sodium atom the spectrum wire loop coloured light spectrum of peculiar wavelength.Utilize the heat energy of flame to make the atomic excitation of certain element luminous, and detect the power of its spectral energy with instrument, and then judge the height of certain constituent content in material, this quasi-instrument is referred to as flame photometer.Nowadays analyze while comparatively advanced flame photometer can carry out multielement simultaneously and detect, built-in air compressor machine integrated design, and with software records.
When carrying out flame photometric analysis, liquid atomizer to be measured is made it to become colloidal sol to be imported in flame, first procatarxis thermal dissociation to be measured generates ground state atom, be excited in flame and produce spectrum, resolving into after monochromatic light through monochromator and measured by electro-optical system, because the humidity ratio of flame is lower, therefore the element of minority can only be excited, and the spectrum of gained is fairly simple, disturb less, flame photometry is specially adapted to the mensuration of more easy excitated alkalies and alkaline earth.
Flame photometer conventional at present adopts liquefied gas as fuel, if existing structure makes the flame of flame photometer be not related in extinguishing fall into air valve, liquefied gas can overflow, and produces dangerous,
Summary of the invention
Adopt liquefied gas as fuel for existing conventional flame photometer; the defect of leaking is there is after fray-out of flame; the invention provides a kind of flame-out protection device of flamephotometer; ensure that the fire of flame photometer extinguishes rear electromagnetic valve closedown liquefied gas and dies; avoid the danger that liquefied gas overflows, improve the security performance that flame photometer uses.
Technical scheme
In order to realize above-mentioned technical purpose; the present invention designs a kind of flame-out protection device of flamephotometer; it comprises air inlet pipeline; it is characterized in that: described air inlet pipeline output terminal is connected with igniting pipeline and burning pipeline; the main line that air inlet pipeline is connected with igniting pipeline and the pipeline that burns is equipped with solenoid valve and reversing bar successively; described solenoid valve controls by thermopair, and the output terminal of described igniting pipeline and burning pipeline is all connected to burner.
Described burning pipeline is equipped with needle valve, and the air intake opening of needle valve and gas outlet screw locking are on burning pipeline.
Beneficial effect
A kind of flame-out protection device of flamephotometer provided by the invention, ensures that the fire of flame photometer extinguishes rear electromagnetic valve closedown liquefied gas and dies, avoids the danger that liquefied gas overflows, improve the security performance that flame photometer uses.
Accompanying drawing explanation
Accompanying drawing 1 is schematic diagram of the present invention.
Accompanying drawing 2 is product structure schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment
As shown in Figure 1; a kind of flame-out protection device of flamephotometer; it comprises air inlet pipeline 1; it is characterized in that: described air inlet pipeline 1 output terminal is connected with igniting pipeline 2 and burning pipeline 3; the main line that air inlet pipeline 1 is connected with igniting pipeline 2 and the pipeline 3 that burns is equipped with solenoid valve 4 and reversing bar 5 successively; described solenoid valve 4 controls by thermopair 6, and the output terminal of described igniting pipeline 2 and burning pipeline 3 is all connected to burner 7.
Described burning pipeline 3 is equipped with needle valve 301, and the air intake opening 301a of needle valve 301 and gas outlet 301b screw locking are on burning pipeline 3.
As shown in Figure 2, combustion gas enters valve below valve, when solenoid valve is opened, enters valve.Valve can by operation point two tunnels, and during igniting, a road directly enters burner 7 from firing circuit, and after fire is lighted, voltage produced by thermopair, and solenoid valve automatic pick, now can not go out not according to control lever fire.Then the control lever inverse time is forwarded to the end, now combustion gas goes out from aciculiform valve port, gets back to burner 7 through needle valve, and combustion gas is by needle valve regulating gas size.Combustion gas is by the good stability of needle valve adjusting size; Die when fire extinguishes thermopair power-off solenoid closure liquefied gas, avoid the danger of overflowing.
Claims (1)
1. a flame-out protection device of flamephotometer, it comprises air inlet pipeline (1), it is characterized in that:
Described air inlet pipeline (1) output terminal is connected with igniting pipeline (2) and burning pipeline (3), the main line that air inlet pipeline (1) is connected with igniting pipeline (2) and the pipeline (3) that burns is equipped with solenoid valve (4) and reversing bar (5) successively, described solenoid valve (4) controls by thermopair (6), and the output terminal of described igniting pipeline (2) and burning pipeline (3) is all connected to burner (7);
Described burning pipeline (3) is equipped with needle valve (301), and the air intake opening (301a) of needle valve (301) and gas outlet (301b) are burning on pipeline (3) with screw locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310167158.3A CN103234631B (en) | 2013-05-08 | 2013-05-08 | Flame-out protection device of flamephotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310167158.3A CN103234631B (en) | 2013-05-08 | 2013-05-08 | Flame-out protection device of flamephotometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103234631A CN103234631A (en) | 2013-08-07 |
| CN103234631B true CN103234631B (en) | 2015-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310167158.3A Active CN103234631B (en) | 2013-05-08 | 2013-05-08 | Flame-out protection device of flamephotometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103234631B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108149A (en) * | 1984-11-13 | 1986-08-27 | 珀金·埃尔默有限公司 | The safety feature of atomic absorption spectrophotometer burner |
| CN2709731Y (en) * | 2004-07-22 | 2005-07-13 | 上海欣益仪器仪表有限公司 | Gas valve |
| CN101078529A (en) * | 2006-05-25 | 2007-11-28 | 杭州电子科技大学 | Embedded type control system for domestic gas oven |
| CN203249691U (en) * | 2013-05-08 | 2013-10-23 | 上海仪电分析仪器有限公司 | Flame photometer flameout protection device |
-
2013
- 2013-05-08 CN CN201310167158.3A patent/CN103234631B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108149A (en) * | 1984-11-13 | 1986-08-27 | 珀金·埃尔默有限公司 | The safety feature of atomic absorption spectrophotometer burner |
| CN2709731Y (en) * | 2004-07-22 | 2005-07-13 | 上海欣益仪器仪表有限公司 | Gas valve |
| CN101078529A (en) * | 2006-05-25 | 2007-11-28 | 杭州电子科技大学 | Embedded type control system for domestic gas oven |
| CN203249691U (en) * | 2013-05-08 | 2013-10-23 | 上海仪电分析仪器有限公司 | Flame photometer flameout protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103234631A (en) | 2013-08-07 |
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