CN204374160U - A kind of gas chromatograph electron capture detector distribution plate - Google Patents
A kind of gas chromatograph electron capture detector distribution plate Download PDFInfo
- Publication number
- CN204374160U CN204374160U CN201520081130.2U CN201520081130U CN204374160U CN 204374160 U CN204374160 U CN 204374160U CN 201520081130 U CN201520081130 U CN 201520081130U CN 204374160 U CN204374160 U CN 204374160U
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- CN
- China
- Prior art keywords
- distribution plate
- face
- gas
- circular end
- electron capture
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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 - Fee Related
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Abstract
The utility model belongs to analytical and testing instrument technical field, relates to a kind of gas chromatograph electron capture detector distribution plate structural design.A kind of gas chromatograph electron capture detector distribution plate, can make sample gas not with positive contact, thus ensure that the anode of this detecting device is not contaminated, ensure that the sensitivity of this detecting device and stability and serviceable life, avoid the very loaded down with trivial details cleaning caused because of pollution, and structure simple, be easy to manufacture, easy for installation.Adopting metal structure, is the I-shaped right cylinder of Intermediate Gray waist, and the circle centre position of upper circular end face has the through hole installing anode; Lower circular end face, around described through hole, is divided equally the aperture having four of communicating with I-shaped waist waste gas, in the centre of a pair aperture, by I-shaped cylindrical lower edge, is had a half slot of locating; In upper circular end face, in direction same as described half slot, there is the translot of a pole sweep gas of activating yang.
Description
Technical field
The utility model belongs to analytical and testing instrument technical field, relates to a kind of gas chromatograph electron capture detector distribution plate structural design.
Background technology
Current gas chromatograph electron capture detector, what have is not with anode purge, and this is easy to make analyzed sample adsorption on anode and the surface of insulating layer of anode, causes the sensitivity of this detecting device greatly to decline, and noise strengthens; Even if the band anode purge had, due to its distribution plate existing defects, also can only make the surface of insulating layer of anode not by sample contamination, its anode is still among the combination gas of sample gas and anode purge gas, cause anode to pollute, and the noise of this detecting device is strengthened gradually, sensitivity reduces gradually.Gas chromatograph electron capture detector is once pollute, and because it is radioactive detector, cleaning quite bothers.
Summary of the invention
The purpose of this utility model is to provide a kind of gas chromatograph electron capture detector distribution plate, can make sample gas not with positive contact, thus ensure that the anode of this detecting device is not contaminated.
For achieving the above object, the technical solution adopted in the utility model is: a kind of gas chromatograph electron capture detector distribution plate, it is characterized in that: adopting metal structure, is the I-shaped right cylinder of Intermediate Gray waist, the circle centre position of upper circular end face has the through hole installing anode; Lower circular end face, around described through hole, is divided equally the aperture having four of communicating with I-shaped waist waste gas, in the centre of a pair aperture, by I-shaped cylindrical lower edge, is had a half slot of locating; In upper circular end face, in direction same as described half slot, there is the translot of a pole sweep gas of activating yang.
The beneficial effects of the utility model are, a kind of gas chromatograph electron capture detector distribution plate, can make sample gas not with positive contact, thus ensure that the anode of this detecting device is not contaminated, ensure that the sensitivity of this detecting device and stability and serviceable life, avoid the very loaded down with trivial details cleaning caused because of pollution, and structure simple, be easy to manufacture, easy for installation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Accompanying drawing 1 is structural representation of the present utility model.
Accompanying drawing 2 is the vertical section structural representation of front view of the present utility model around axle dextrorotation 45 °.
Accompanying drawing 3 is that installation of the present utility model coordinates vertical section structural representation.
1. distribution plates in accompanying drawing, 2. I-shaped waist, 3. through hole, 4. translot, 5. aperture, 6. half slot, 7. blow-down pipe, 8. anode purge pipe, 9. anode, 10. radioactive source cavity, 11. pedestals
Embodiment
Embodiment of the present utility model, is shown in accompanying drawing 1,2, and adopt cylinder metal material to make distribution plate (1), distribution plate (1) centre lathe car one I-shaped waist (2) becomes I-shaped; Circle centre position in distribution plate (1) upper surface bores the through hole (3) that installs anode; In distribution plate (1) lower surface around through hole (3), divide equally and bore the aperture (5) that communicate with I-shaped waist (2) four go out waste gas, in the centre of a pair aperture, by I-shaped cylindrical lower edge, the half slot (6) of milling one location; In upper circular end face, with described half slot (6) same direction, milling one activates yang the translot (4) of pole sweep gas.
Installation of the present utility model coordinates, see accompanying drawing 3, distribution plate (1) is put into the cavity of electron capture detector pedestal (11), half slot (6) aims at blow-down pipe (7) location, translot (4), with regard to auto-alignment anode purge pipe (8), loads anode (9) to through hole (3); After such anode purge gas purges anode (9) by translot (4) to through hole (3) by anode purge pipe (8), by four apertures going out waste gas of distribution plate (1) lower surface to I-shaped waist (2), by blow-down pipe (7) emptying; Sample gas directly enters four apertures going out waste gas of distribution plate (1) lower surface to I-shaped waist (2), finally by blow-down pipe (7) emptying by radioactive source cavity (10); Avoiding problems sample gas directly to contact with anode (9), thus ensure that anode (9) is not contaminated.
Claims (1)
1. a gas chromatograph electron capture detector distribution plate, is characterized in that: adopting metal structure, is the I-shaped right cylinder of Intermediate Gray waist, and the circle centre position of upper circular end face has the through hole installing anode; Lower circular end face, around described through hole, is divided equally the aperture having four of communicating with I-shaped waist waste gas, in the centre of a pair aperture, by I-shaped cylindrical lower edge, is had a half slot of locating; In upper circular end face, in direction same as described half slot, there is the translot of a pole sweep gas of activating yang.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081130.2U CN204374160U (en) | 2015-02-01 | 2015-02-01 | A kind of gas chromatograph electron capture detector distribution plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081130.2U CN204374160U (en) | 2015-02-01 | 2015-02-01 | A kind of gas chromatograph electron capture detector distribution plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204374160U true CN204374160U (en) | 2015-06-03 |
Family
ID=53330369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520081130.2U Expired - Fee Related CN204374160U (en) | 2015-02-01 | 2015-02-01 | A kind of gas chromatograph electron capture detector distribution plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204374160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907621A (en) * | 2017-12-28 | 2018-04-13 | 浙江福立分析仪器股份有限公司 | The automatically cleaning electron capture detector and its application process of a kind of gas chromatograph |
-
2015
- 2015-02-01 CN CN201520081130.2U patent/CN204374160U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907621A (en) * | 2017-12-28 | 2018-04-13 | 浙江福立分析仪器股份有限公司 | The automatically cleaning electron capture detector and its application process of a kind of gas chromatograph |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20150603 Termination date: 20160201 |