CN201307105Y - Chromatograph hydrogen flame ionization detector - Google Patents
Chromatograph hydrogen flame ionization detector Download PDFInfo
- Publication number
- CN201307105Y CN201307105Y CNU2008202222069U CN200820222206U CN201307105Y CN 201307105 Y CN201307105 Y CN 201307105Y CN U2008202222069 U CNU2008202222069 U CN U2008202222069U CN 200820222206 U CN200820222206 U CN 200820222206U CN 201307105 Y CN201307105 Y CN 201307105Y
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- flame ionization
- chromatograph
- nozzle
- utmost point
- detector
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Abstract
The utility model relates to a chromatograph hydrogen flame ionization detector, in particular to a gas chromatograph hydrogen flame ionization detector (FID) in the field of analytical chemistry. The detector comprises a constant temperature block 1, a heater 2, a sealing ring 3, an ion chamber 4, a nozzle 5, a collector electrode 6, an insulating mat 7, a nut cap 8, a polarization electrode 9, an ion seat 10 and a platinum resistance 11. The detector is characterized in that the polarization electrode 9 is in a circular ring shape. The detector improves the detection sensitivity of the domestic gas chromatograph to hydrocarbon gases. The operation status of the chromatograph is stable, and the chromatographic analysis result is accurate and reliable.
Description
Technical field
The utility model relates to the flame ionization ditector (being called for short FID) of gas chromatograph in a kind of analytical chemistry field.
Background technology
At present, widely used Domestic Gas Chromatograph generally is made up of isothermal block, well heater, sealing ring, ion chamber, nozzle, collector, insulating mat, block, the fork-shaped polarization utmost point, ion seat and platinum resistance.Nozzle member adopts stainless steel material, sealing ring has adopted polytetrafluoroethylmaterial material, the general fault that this kind detector exists is: at high temperature working time long afterwards, because nozzle member adopts stainless steel material, and the working temperature of FID chamber is 150 ℃, teflon seal ring can not be high temperature resistant for a long time, therefore cause the fixing bad of nozzle and pedestal, after operation a period of time, the phenomenon of displacement taking place to produce between nozzle and collector, makes the sensitivity of detecting device descend.Simultaneously, the fork-shaped polarization utmost point also causes sensitivity not high; This kind detector also has the distance of collector and polarization interpolar unreasonable, the irrational defective of relative position of the polarization utmost point and jet hole.
The content of utility model
The purpose of this utility model is in order to overcome above-mentioned defective, provides a kind of and can reach that correlation technique index request, running status are stable, analysis result chromatograph flame ionization ditector accurately and reliably.
The technical solution of the utility model is: this detecting device comprises isothermal block 1, well heater 2, sealing ring 3, ion chamber 4, nozzle 5, collector 6, insulating mat 7, block 8, the polarization utmost point 9, ion seat 10 and platinum resistance 11, and the utmost point 9 that is characterized in polarizing is annular.
Another characteristics of the present utility model are that the described polarization utmost point 9 is in same horizontal line position for 5 mouthfuls with nozzle.
The aperture that another characteristics of the present utility model are described nozzles 5 is 0.4mm, and the distance that the collector 6 and the polarization utmost point are 9 is 9mm.
Another characteristics of the present utility model are that described nozzle 5 adopts quartz material, and sealing ring 3 adopts graphite material to make.
The utlity model has following advantage and effect:, improved the detection sensitivity of Domestic Gas Chromatograph to hydrocarbon gas by to the polarization utmost point and to the adjustment of the distance of collector and polarization interpolar with to the adjustment of the relative position of the polarization utmost point and jet hole and to the use of nozzle and sealing ring new material.Its chromatographic run is in stable condition, and the stratographic analysis result accurately and reliably.Same oil sample compares with external HP5890 chromatograph test figure result, when oil dissolved gas concentration during greater than 10ul/L, repeatability R＜15%, when oil dissolved gas concentration during less than 10ul/L, repeatability R＜30% reaches the technical requirement (reaching the correlation technique index request of GB GB/T17623-1998 " the gas Chromatographic Determination method of insulation oil dissolved gas component ") that rules are stipulated.The utility model can make technological knowledge popular in electric system, eliminates the defective that Domestic Gas Chromatograph exists, and makes its better service in electrical production.
Description of drawings
Accompanying drawing is the utility model result schematic diagram.
Embodiment
As shown in drawings, this device comprises isothermal block 1, well heater 2, sealing ring 3, ion chamber 4, nozzle 5, collector 6, insulating mat 7, block 8, the polarization utmost point 9, ion seat 10 and platinum resistance 11, and the utmost point 9 that is characterized in polarizing is annular.The polarization utmost point 9 is in same horizontal line position for 5 mouthfuls with nozzle.The aperture of nozzle 5 is 0.4mm, and the distance that the collector 6 and the polarization utmost point are 9 is 9mm.Nozzle 5 adopts quartz material, and sealing ring 3 adopts graphite material to make.
Claims (4)
1, a kind of chromatograph flame ionization ditector, comprise isothermal block (1), well heater (2), sealing ring (3), ion chamber (4), nozzle (5), collector (6), insulating mat (7), block (8), the polarization utmost point (9), ion seat (10) and platinum resistance (11), the utmost point (9) that it is characterized in that polarizing is an annular.
2, a kind of chromatograph flame ionization ditector as claimed in claim 1 is characterized in that the described polarization utmost point (9) and nozzle (5) mouth are in same horizontal line position.
3, a kind of chromatograph flame ionization ditector as claimed in claim 1 or 2, the aperture that it is characterized in that described nozzle (5) is 0.4mm, the distance between the collector (6) and the polarization utmost point (9) is 9mm.
4, a kind of chromatograph flame ionization ditector as claimed in claim 1 or 2 is characterized in that described nozzle (5) adopts quartz material, and sealing ring (3) adopts graphite material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202222069U CN201307105Y (en) | 2008-10-13 | 2008-10-13 | Chromatograph hydrogen flame ionization detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202222069U CN201307105Y (en) | 2008-10-13 | 2008-10-13 | Chromatograph hydrogen flame ionization detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307105Y true CN201307105Y (en) | 2009-09-09 |
Family
ID=41099572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202222069U Expired - Fee Related CN201307105Y (en) | 2008-10-13 | 2008-10-13 | Chromatograph hydrogen flame ionization detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201307105Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495161A (en) * | 2011-11-11 | 2012-06-13 | 河南中分仪器股份有限公司 | Special flame ionization detector for analyzing dissolved gas in insulating oil |
| CN102539591A (en) * | 2011-12-31 | 2012-07-04 | 聚光科技(杭州)股份有限公司 | Small-sized hydrogen flame ionization detection device |
| CN103954712A (en) * | 2014-04-02 | 2014-07-30 | 克拉玛依广陆有限责任公司 | Quartz nozzle-type FID detector used for gas chromatograph for logging |
| CN105067730A (en) * | 2015-07-30 | 2015-11-18 | 安徽中杰信息科技有限公司 | Hydrogen flame ionization detector for carrying out quantitative analysis on hydrocarbon mixture |
-
2008
- 2008-10-13 CN CNU2008202222069U patent/CN201307105Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495161A (en) * | 2011-11-11 | 2012-06-13 | 河南中分仪器股份有限公司 | Special flame ionization detector for analyzing dissolved gas in insulating oil |
| CN102539591A (en) * | 2011-12-31 | 2012-07-04 | 聚光科技(杭州)股份有限公司 | Small-sized hydrogen flame ionization detection device |
| CN102539591B (en) * | 2011-12-31 | 2014-04-16 | 聚光科技(杭州)股份有限公司 | Small-sized hydrogen flame ionization detection device |
| CN103954712A (en) * | 2014-04-02 | 2014-07-30 | 克拉玛依广陆有限责任公司 | Quartz nozzle-type FID detector used for gas chromatograph for logging |
| CN103954712B (en) * | 2014-04-02 | 2016-08-17 | 新疆广陆能源科技股份有限公司 | Quartz nozzle type fid detector for well logging special-purpose gas chromatograph |
| CN105067730A (en) * | 2015-07-30 | 2015-11-18 | 安徽中杰信息科技有限公司 | Hydrogen flame ionization detector for carrying out quantitative analysis on hydrocarbon mixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20101013 |