CN209167230U - A kind of flame ionization ditector - Google Patents
A kind of flame ionization ditector Download PDFInfo
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- CN209167230U CN209167230U CN201821633734.3U CN201821633734U CN209167230U CN 209167230 U CN209167230 U CN 209167230U CN 201821633734 U CN201821633734 U CN 201821633734U CN 209167230 U CN209167230 U CN 209167230U
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- flame
- collector
- ionization ditector
- flame ionization
- temperature detector
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Abstract
The utility model belongs to analytical and testing instrument especially gas chromatograph techniques field, it is related to a kind of flame ionization ditector, including shell, shell is equipped with sample gas channel, hydrogen paths, air duct and exhaust passage, and polarization pole, collector, nozzle and flame temperature detector are provided in shell；The polarization pole center and collector are located on same axis, and polarizing has sufficient space between pole and collector, and polarization pole and collector distance are 3-5cm；The surface for being placed in nozzle of the flame temperature detector；The hydrogen paths are equipped with electronic flow control module and interlock with flame temperature detector.The utility model can accurately realize the detection of flame temperature with efficient quick, promote security performance.
Description
Technical field
The utility model belongs to analytical and testing instrument technical field, especially gas chromatograph techniques field, and in particular to
A kind of novel flame ionization ditector.
Background technique
Hydrogen flame ionization detector is as a kind of mass flow rate sensitive detector, and sensitivity with higher, the range of linearity is wide, right
Nearly all volatile organic matter has response.Therefore its use in gas chromatograph is extensively very than other detectors
It is more.The detector is using hydrogen and air as the energy, when organic matter enters with the flame of hydrogen and oxygen combustion, in flame
Chemi-ionization occurs under the high temperature conditions for organic matter, and ion generated forms current ion signal under the action of high voltage electric field,
Signal generates the electric signal directly proportional to the dense amount of organic matter of flame is entered through amplifier amplification, can be real according to the size of signal
Now to the quantitative analysis of the quantitative analysis organic matter of test substance.
Currently, traditional chromatograph hydrogen flame ionization detector is for igniting, whether successful detection mode is not straight enough
See, cannot achieve in the successful visual inspection of closed environment midpoint fire, applicability is not strong, while traditional chromatograph hydrogen flame from
Sonization detector cannot achieve the hydrogen under flameout state and be automatically closed, it is therefore desirable to improve.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provide a kind of device it is simple, for lighting a fire successfully
The flame ionization ditector that detection is more intuitive and security performance significantly improves.
The purpose of this utility model used following technical scheme to realize: flame ionization ditector, including shell
Body, shell are equipped with sample gas channel, hydrogen paths, air duct and exhaust passage, be provided in shell polarization pole, collector,
Nozzle and flame temperature detector；The polarization pole center and collector are located on same axis, polarize between pole and collector
With sufficient space, polarization pole and collector distance are 3-5cm；The flame temperature detector be placed in nozzle just on
Side；The hydrogen paths are equipped with electronic flow control module and interlock with flame temperature detector.
According to above-mentioned flame ionization ditector, preferred: sample gas directly passes through sample gas channel and nozzle connection.
Preferred according to above-mentioned flame ionization ditector: nozzle is located at the center of polarization polar curve circle.
Preferred according to above-mentioned flame ionization ditector: hydrogen paths and air path length are 3 cm ~ 15
Cm, outer diameter are 1/16 inch, and internal diameter is 0.005 inch.
It is preferred: shell being heated by heating rod according to above-mentioned flame ionization ditector.
Preferred according to above-mentioned flame ionization ditector: flame temperature detector realizes temperature using thermocouple
Control, the K-type thermocouple that thermocouple is 1.2 millimeters of diameter.
According to above-mentioned flame ionization ditector, preferred: electronic flow control module includes proportioning valve, quality stream
Meter and circuit module.
The utility model simultaneously closes hydrogen paths when flame temperature detector detects fray-out of flame immediately.
Compared with prior art, the utility model has the beneficial effects that
1, the utility model directly heats detector shell using heating rod, to provide required temperature to detector；
2, the utility model directly uses temperature detector above detector flame, and efficient quick accurately realizes flame
The detection of temperature, while whether igneous can be put according to the more intuitive detection flame ionization ditector of change of temperature
Function；
3, the utility model changes the mode that sample gas enters detector, and sample gas is directly transported to inspection by sample feed channel
It surveys at the nozzle of device, zero loss of sample gas is able to achieve, to improve the precision of detector；
4, end side surface increases exhaust emissions outlet to the utility model on the detector, the water mist that can be exported by last row,
Increase successful judgment basis of lighting a fire；
5, the utility model increases electronic flow control module in the import of hydrogen, can cut off hydrogen under flameout state
The import of gas promotes security performance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment flame ionization ditector.
In figure, 1- sample gas channel, 2- hydrogen paths, 3- air duct, 4- polarization pole, 5- shell, 6- collector, 7- exhaust
Channel, 8- screw hole, 9- flame temperature detector, 10- nozzle, 11- electronic flow control module.
Specific embodiment
The utility model is described in detail below with reference to embodiment and attached drawing.
Embodiment
Novel flame ionization ditector mainly includes shell 5 referring to attached drawing 1, and shell 5 is equipped with sample gas channel 1, hydrogen
Gas channel 2, air duct 3 and exhaust passage 7 are provided with polarization pole 4, collector 6, nozzle 10 and flame temperature inspection in shell 5
Survey device 9；4 center of polarization pole and collector 6 are located on same axis, and polarizing has sufficient sky between pole 4 and collector 6
Between, polarization pole and collector distance are 3-5cm；The surface for being placed in nozzle 10 of the flame temperature detector 9；The hydrogen
Channel 2 is equipped with electronic flow control module 11 and interlocks with flame temperature detector 9.
In embodiment, sample gas channel 1 is directly connected by stainless steel pipe with nozzle 10, and nozzle 10 is located at polarization pole 4
Hub of a spool position, flame temperature detector 9 are located at the surface 1cm of nozzle 10, and flame temperature detector uses thermocouple
Realize temperature control, the K-type thermocouple that thermocouple is 1.2 millimeters of diameter can directly judge hydrogen flame according to the variation of temperature
Whether ionization detector lights a fire success.The outer diameter of hydrogen paths 2 and air duct 3 is 1/16 inch, and internal diameter is 0.005 English
Very little stainless steel tube, length 3 cm ~ 15 cm.
In embodiment, increase electronic flow control module 11 on hydrogen paths 2, electronic flow control module includes ratio
Valve, mass flowmenter and circuit module.When flame temperature detector 9 detects that hydrogen flame temperature is decreased obviously, flame-out shape is judged
When state, electronic flow control module 11 will cut off hydrogen paths.
In embodiment, directly detector shell is heated using heating rod, to provide required temperature to detector.Detection
Device shell is fixed by screw hole 8, and the aerosol after hydrogen and air burning is discharged by last row mouth 7, and collector 6 is to sample gas
Ionization signature is collected.
Claims (7)
1. a kind of flame ionization ditector, it is characterised in that: including shell, shell be equipped with sample gas channel, hydrogen paths,
Air duct and exhaust passage are provided with polarization pole, collector, nozzle and flame temperature detector in shell；The polarization pole
Center and collector are located on same axis, and polarizing has sufficient space between pole and collector, polarization pole and collector away from
From for 3-5cm；The surface for being placed in nozzle of the flame temperature detector；The hydrogen paths are controlled equipped with electronic flow
Module is simultaneously interlocked with flame temperature detector.
2. flame ionization ditector according to claim 1, it is characterised in that: sample gas directly pass through sample gas channel with
Nozzle connection.
3. flame ionization ditector according to claim 1, it is characterised in that: nozzle is located in polarization polar curve circle
Heart position.
4. flame ionization ditector according to claim 1, it is characterised in that: hydrogen paths and air path length
It is the cm of 3 cm ~ 15, outer diameter is 1/16 inch, and internal diameter is 0.005 inch.
5. flame ionization ditector according to claim 1, it is characterised in that: added by heating rod to shell
Heat.
6. flame ionization ditector according to claim 1, it is characterised in that: electronic flow control module include than
Example valve, mass flowmenter and circuit module.
7. flame ionization ditector according to claim 1, which is characterized in that flame temperature detector uses thermoelectricity
It is even to realize temperature control, the K-type thermocouple that thermocouple is 1.2 millimeters of diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821633734.3U CN209167230U (en) | 2018-10-09 | 2018-10-09 | A kind of flame ionization ditector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821633734.3U CN209167230U (en) | 2018-10-09 | 2018-10-09 | A kind of flame ionization ditector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209167230U true CN209167230U (en) | 2019-07-26 |
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ID=67333125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821633734.3U Active CN209167230U (en) | 2018-10-09 | 2018-10-09 | A kind of flame ionization ditector |
Country Status (1)
| Country | Link |
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| CN (1) | CN209167230U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113917056A (en) * | 2021-12-15 | 2022-01-11 | 常州磐诺仪器有限公司 | Hydrogen flame ionization detector system with ultralow energy consumption and material consumption |
-
2018
- 2018-10-09 CN CN201821633734.3U patent/CN209167230U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113917056A (en) * | 2021-12-15 | 2022-01-11 | 常州磐诺仪器有限公司 | Hydrogen flame ionization detector system with ultralow energy consumption and material consumption |
| CN113917056B (en) * | 2021-12-15 | 2022-05-13 | 常州磐诺仪器有限公司 | Hydrogen flame ionization detector system with ultralow energy consumption and material consumption |
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