CN201145666Y - Electrode device by automatic ignition - Google Patents
Electrode device by automatic ignition Download PDFInfo
- Publication number
- CN201145666Y CN201145666Y CNU2008200551146U CN200820055114U CN201145666Y CN 201145666 Y CN201145666 Y CN 201145666Y CN U2008200551146 U CNU2008200551146 U CN U2008200551146U CN 200820055114 U CN200820055114 U CN 200820055114U CN 201145666 Y CN201145666 Y CN 201145666Y
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- CN
- China
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- burner
- electrode
- positive electrode
- aciculiform
- negative electrode
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Abstract
An autoignition electrode device has a main component of a titanium alloy burner consisting of two rectangular plates and a nearly hemispheric cavity. A narrow slit between the two plates is an output end for burning acetylene gas, and a port positioned at the lower part of the hemispheric cavity is an input end for burning acetylene gas. The autoignition electrode device is characterized in that: a small triangular metal sheet on the edge part of one end of the narrow slit on the surface of the burner serves as a negative electrode, a needle-shaped positive electrode near the triangular negative electrode on the surface of the burner is inserted into the plane of the burner for placing a sample to be tested, and the part of the positive electrode in contact with the burner is coated with a layer of insulation material. The autoignition electrode device needs a small number of components with simple structure, low cost and easy operation.
Description
Technical field
The utility model relates to the electrode assembly of the automatic igniting of a kind of electrode assembly of automatic igniting, particularly a kind of flame atomic absorption spectrophotometer.
Background technology
Flame atomic absorption spectrophotometer (claiming flame atomic absorption spectrophotometer again) has become the conventionally test instrument that metal element content is analyzed at present.Its principle of work is: the spectrum line that the hollow cathode element lamp of certain metallic element sends by being absorbed behind the testing sample, according to the size of absorption value, calculates the content of this metallic element in the sample.
Because testing sample need become the atomization state through behind the flame high-temp combustion, usually as shown in Figure 1: use acetylene as the burning source of the gas, at instrument internal solenoid valve 1, the gas piping 2 of band nozzle is divided into two the tunnel with acetylene gas, one road acetylene gas is used for burning sample, another road acetylene gas is as the kindling material of igniting, platinum wire 3 is placed in the exit of the acetylene gas that is used to ignite, make it rubescent platinum wire 3 two ends making alives during work, become the narrow slit 6 that burning things which may cause a fire disaster and directive are used for the first via acetylene gas outlet of burning sample immediately from the acetylene gas of igniting of the second tunnel ejection, the acetylene gas of burning sample is lighted, and cuts off the second road acetylene gas simultaneously.
Above-mentioned ignition device structure complexity, and need expensive components and parts such as solenoid valve 1, the gas piping 2 of being with nozzle, platinum wire 3, be unfavorable for the miniaturization of instrument and the reduction of cost.
The utility model content
The purpose of this utility model: aim to provide a kind of electrode assembly that can overcome the automatic igniting of existing ignition device structure challenge, automatically the electrode assembly of igniting has saved expensive components and parts such as the second tunnel the acetylene gas of igniting, solenoid valve 1, the gas piping 2 of being with nozzle, platinum wire 3, greatly reduces the cost of whole flame atomic absorption spectrophotometer in simplification device.
The electrode assembly of the automatic igniting of this flame atomic absorption spectrophotometer, critical piece is for being similar to the compound titanium burn device of forming 5 of hemispheric cavity by the square sheet material of two block lengths and one, accompany the output terminal of a narrow slit 6 between the two boards material for the burning acetylene gas, an opening is arranged at hemispheric cavity bottom, input end 7 for the burning acetylene gas, it is characterized in that: in the limit portion of burner 5 upper surface narrow slits 6 one ends a little triangle metal thin slice being arranged is negative electrode 8, near burner 5 upper surface triangle negative electrodes 8 an aciculiform positive electrode 9 is arranged.
Described aciculiform positive electrode 9 is inserted in burner 5 and places on the plane of testing sample, and aciculiform positive electrode 9 is coating one deck insulating material with burner 5 contact portions.
Described negative electrode 8 is one to place the little triangle metal thin slice of the upper surface of burner 5, and vertically height is less than the vertical height of aciculiform positive electrode 9 for it, and the most advanced and sophisticated distance with aciculiform positive electrode 9 tips of described triangle negative electrode 8 is smaller or equal to 6mm.
Compare with existing portfire, according to the outstanding feature and the characteristics of the electrode assembly of the automatic igniting of this flame atomic absorption spectrophotometer of technique scheme design be: install required building block and reduce, simple in structure, cost is low, processing ease.
Description of drawings
Accompanying drawing 1 is the structural representation of existing portfire.
Accompanying drawing 2 is structural representations of the present utility model.
Accompanying drawing 3 is vertical views of the present utility model.
Among the figure: 1, the sample 5 of solenoid valve 2, gas piping 3, platinum wire 4, burning, burner 6, narrow slit 7, burning acetylene gas input end 8, negative electrode 9, aciculiform positive electrode
Embodiment
Principle of work: the pulse shaping electric spark is realized igniting by adding high pressure between two sparking electrodes of burner 5 upper surfaces.
The electrode assembly of the automatic igniting of this flame atomic absorption spectrophotometer, critical piece is for being similar to the compound titanium burn device of forming 5 of hemispheric cavity by the square sheet material of two block lengths and one, accompany the output terminal of a narrow slit 6 between the two boards material for the burning acetylene gas, hemispheric cavity has an opening, input end 7 for the burning acetylene gas, it is characterized in that: in burner 5 upper surface narrow slits 6 a little triangle metal thin slice being arranged is negative electrode 8, near burner 5 upper surface triangle negative electrodes 8 an aciculiform positive electrode 9 is arranged.
Described aciculiform positive electrode 9 is inserted in burner 5 and places on the plane of testing sample, and aciculiform positive electrode 9 is coating one deck insulating material with burner 5 contact portions.
Described negative electrode 8 is one to place the little triangle metal thin slice of the upper surface of burner 5, and vertically height is less than the vertical height of aciculiform positive electrode 9 for it, and the most advanced and sophisticated distance with aciculiform positive electrode 9 tips of described triangle negative electrode 8 is smaller or equal to 6mm.
When acetylene gas sprays, add high voltage pulse from the narrow slit 6 of burner 5 upper surfaces, will discharge between two electrodes and light the acetylene gas that sprays from burner 5, realize igniting at aciculiform positive electrode 9 and triangle negative electrode 8 two ends.
Claims (3)
1, a kind of electrode assembly of automatic igniting, critical piece is for being similar to the compound titanium burn device of forming (5) of hemispheric cavity by the square sheet material of two block lengths and one, accompany the output terminal of a narrow slit (6) between the two boards material for the burning acetylene gas, an opening is arranged at the bottom of hemispheric cavity, input end (7) for the burning acetylene gas, it is characterized in that: it is negative electrode (8) that a little triangle metal thin slice is arranged in the narrow slit (6) of burner (5) upper surface, and an aciculiform positive electrode (9) is arranged near burner (5) upper surface triangle negative electrode (8).
2, the electrode assembly of automatic igniting according to claim 1 is characterized in that: described aciculiform positive electrode (9) is coating one deck insulating material with burner 5 contact portions.
3, the electrode assembly of automatic igniting according to claim 1 is characterized in that: the vertical height of described triangle negative electrode (8) is smaller or equal to the vertical height of aciculiform positive electrode (9); The distance that described triangle negative electrode (8) is most advanced and sophisticated and aciculiform positive electrode (9) is most advanced and sophisticated is smaller or equal to 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200551146U CN201145666Y (en) | 2008-01-25 | 2008-01-25 | Electrode device by automatic ignition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200551146U CN201145666Y (en) | 2008-01-25 | 2008-01-25 | Electrode device by automatic ignition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201145666Y true CN201145666Y (en) | 2008-11-05 |
Family
ID=40082549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200551146U Expired - Fee Related CN201145666Y (en) | 2008-01-25 | 2008-01-25 | Electrode device by automatic ignition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201145666Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661922A (en) * | 2012-04-05 | 2012-09-12 | 哈尔滨工业大学 | Method for applied electric-field sensitization of flame atomic absorption detection limit |
| CN103630527A (en) * | 2012-08-27 | 2014-03-12 | 北京瑞利分析仪器有限公司 | Argon-hydrogen flame low temperature automatic ignition apparatus used for atomic fluorescence |
-
2008
- 2008-01-25 CN CNU2008200551146U patent/CN201145666Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661922A (en) * | 2012-04-05 | 2012-09-12 | 哈尔滨工业大学 | Method for applied electric-field sensitization of flame atomic absorption detection limit |
| CN102661922B (en) * | 2012-04-05 | 2013-10-16 | 哈尔滨工业大学 | Method for applied electric-field sensitization of flame atomic absorption detection limit |
| CN103630527A (en) * | 2012-08-27 | 2014-03-12 | 北京瑞利分析仪器有限公司 | Argon-hydrogen flame low temperature automatic ignition apparatus used for atomic fluorescence |
| CN103630527B (en) * | 2012-08-27 | 2015-11-18 | 北京瑞利分析仪器有限公司 | For the argon-hydrogen flame low temperature automatic igniter of atomic fluorescence |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI INESA ANALYTICAL INSTRUMENT CO., LTD. Free format text: FORMER OWNER: SHANGHAI CO., LTD OF FINE SCIENTIFIC INSTRUMENTS Effective date: 20120503 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120503 Address after: 200233 -01 room, 18 West floor, 481 Guiping Road, Xuhui District, Shanghai Patentee after: Shanghai INESA Analytical Instrument Co., Ltd. Address before: 200233 No. 10, Cangwu Road, Shanghai, Xuhui District Patentee before: Shanghai Co., Ltd of Fine Scientific Instruments |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20130125 |