CN206945628U - The anti-blocking fast knot structure of fire prevention of flame ionization ditector combustion chamber - Google Patents
The anti-blocking fast knot structure of fire prevention of flame ionization ditector combustion chamber Download PDFInfo
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- CN206945628U CN206945628U CN201720874922.4U CN201720874922U CN206945628U CN 206945628 U CN206945628 U CN 206945628U CN 201720874922 U CN201720874922 U CN 201720874922U CN 206945628 U CN206945628 U CN 206945628U
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Abstract
The utility model discloses the anti-blocking fast knot structure of fire prevention of flame ionization ditector combustion chamber, including combustion chamber gases entrance, includes hydrogen inlet and sample gas entrance again；Combustion chamber, include combustion chamber base and cavity again；Ignition system, include thermocouple and ignition coil again；And combustion chamber gases floss hole；Also include fire proof construction and anti-blocking fast knot structure.Fire proof construction includes fire proof construction body and fire retarding sheet, and fire retarding sheet is netted ventilation piece, on the main channel of combustion chamber gases floss hole；Anti-blocking fast knot structure includes anti-blocking dead structural body and combustion chamber gases floss hole bypass channel, and combustion chamber gases floss hole bypass channel is to increase N number of through hole in the surrounding side of combustion chamber gases floss hole main channel, and preferably N is derived from 24.The utility model is simple in construction, easy to use, ensures that FID combustion chambers can fully burn and does not stop working, while also completely cuts off flame and communicated with extraneous, prevents flame from scurrying out combustion chamber, avoids causing the safety problem such as explode on fire.
Description
Technical field
The utility model is related to the hydrogen flame used in flame ionization ditector, especially gas chromatographic detection from
The anti-blocking fast knot structure of fire prevention in sonization detector combustion chamber.
Background technology
Gas chromatograph is widely applied to oil and Petrochemical Engineering Analysis, environmental analysis, food analysis, medicine and clinic
The fields, wherein flame ionization ditector such as analysis（Abbreviation FID）It is a kind of most common detector of gas chromatograph, its work
Make principle：The flame generated using hydrogen and air burning is the energy, when organic compound enters with the fire of hydrogen and oxygen combustion
Flame, produces chemi-ionization at high temperature, and ionization produces ion, ion stream formed in the presence of high voltage electric field, by zooming into
For the directly proportional electric signal of amount of the organic compound to entering flame, therefore organic matter can be entered according to the size of electric signal
Row quantitative analysis.Fid detector widely should be in the place such as oil and Petrochemical Engineering Analysis, the analysis of air environmental pollution thing.
But current FID structures combustor exit is all open type, due to FID field of employment, there is inflammable gas leakage
Hidden danger, the burning flare that the inflammable gas of external world's leakage enters FID combustion chambers or combustion chamber scurries out combustion chamber, it is possible to draws
Blast on fire is played, therefore there is potential safety hazard under some more severe site environments for such structure.
An other combustion chamber gases floss hole typically only passage, if this design cause combustion chamber gases outlet by
If blocking, FID combustion chambers can stop working and can not work.
The content of the invention
In order to solve the above problems, the utility model provides the anti-blocking fast knot of fire prevention of flame ionization ditector combustion chamber
The combustion flame of FID combustion chambers is hedged off from the outer world by structure, its purpose, prevents flame from scurrying out combustion chamber, while by FID combustion chambers
Burning gases are effectively discharged to outside combustion chamber, are ensured that combustion chamber can fully burn and are not stopped working.
The technical scheme in the invention for solving the technical problem is：
The anti-blocking fast knot structure of fire prevention of flame ionization ditector combustion chamber, including combustion chamber gases entrance, include hydrogen again
Gas entrance and sample gas entrance；Combustion chamber includes combustion chamber base and cavity again；Ignition system, include thermocouple and igniting again
Coil；And combustion chamber gases floss hole；Also include fire proof construction and anti-blocking fast knot structure.
The fire proof construction includes fire proof construction body and fire retarding sheet.
The fire proof construction body is combustion chamber gases floss hole.
The fire retarding sheet is netted ventilation piece, on the main channel of combustion chamber gases floss hole.
This fire proof construction ensures that the flame of combustion chamber is hedged off from the outer world, and prevents flame from scurrying out combustion chamber, avoids in easy combustion gas
Body causes the safety problems such as blast on fire in the case of leaking.
The anti-blocking fast knot structure includes anti-blocking dead structural body and combustion chamber gases floss hole bypass channel.
The anti-blocking dead structural body is combustion chamber gases floss hole.
The combustion chamber gases floss hole bypass channel is to increase N in the surrounding side of combustion chamber gases floss hole main channel
Individual through hole, preferably N are derived from 2-4.
This anti-blocking fast knot structure ensures that By-pass vent mouth can be by the burning of combustion chamber when combustion chamber main vent is plugged
Gas is effectively discharged to outside combustion chamber so that combustion chamber, which can fully burn, does not stop working.
The utility model beneficial effect is
The utility model is simple in construction, easy to use, ensure that FID combustion chambers can fully burn and does not stop working, while
Communicating for flame and the external world is completely cut off, has prevented flame from scurrying out combustion chamber, avoid causing the safety problems such as blast on fire.
Brief description of the drawings
Fig. 1 is the utility model combustion chamber sectional structure chart.
In figure, 1 is hydrogen inlet, and 2 be sample gas entrance, and 3 be combustion chamber base, and 4 be combustion chamber cavity, and 5 be heat
Galvanic couple, 6 be ignition coil, and 7 be fire retarding sheet, and 8 be combustion chamber gases floss hole main channel, and 9 be the bypass of combustion chamber gases floss hole
Passage, 10 be shell, and 11 be signal collection pole.
Embodiment
The utility model is described in further detail with implementation column below in conjunction with the accompanying drawings.
As shown in figure 1, work as hydrogen from hydrogen inlet（1）Flowing in combustion chamber cavity（4）, sample gas is from sample gas entrance
（2）After flowing in combustion chamber cavity（4）, signal collection pole（11）Signal, thermocouple will be produced（5）And ignition coil（6）Carry out
Igniting, combustion chamber cavity（4）The mixed gas of interior hydrogen and sample gas composition starts to burn.Due to hydrogen and sample gas not
Disconnected is filled with combustion chamber cavity（4）, then continuous ignition so that combustion chamber cavity（4）Interior air pressure is higher than ambient pressure,
In the presence of inner and outer air pressure difference, combustion chamber cavity（4）Interior burning gases constantly pass through combustion chamber gases floss hole main channel
（8）Discharge.
The fire proof construction is achieved in that, in combustion chamber gases floss hole main channel（8）Upper increase fire retarding sheet（7）.
Combustion chamber cavity（4）During the mixed gas burning of interior hydrogen and sample gas composition, combustion flame is changeable, the size of flame
There are much relations with the amount and composition proportion of mixed gas.Excessive flame is possible to combustion chamber cavity of scurrying out（4）, pass through burning
Room gas discharge outlet main channel（8）Contacted with external environment, and external environment may have inflammable gas leakage, the flame scurried out with
Extraneous gas leakage contact easily causes the safety problems such as blast on fire.Fire retarding sheet（7）Installed in combustion chamber gases floss hole master
Passage（8）On, from combustion chamber cavity（4）In the flame scurried out can first pass around fire retarding sheet（7）.Fire retarding sheet（7）It is network structure
Ventilation piece, flame passes through fire retarding sheet（7）Netted gap composition many thin channels after will become some tiny fire
Flame, the contact area of flame and conduit wall is expanded, enhance heat transfer, flame temperature is dropped to below ignition point, so as to prevent
Propagation of flame.Flame is passing through fire retarding sheet（7）After can be obviously reduced or even extinguish, effectively completely cut off flame and communicated with extraneous.Together
When combustion chambers burn gas be easy to from netted gap by and from combustion chamber gases floss hole main channel（8）Discharge, will not be right
The discharge of burning gases has an impact.Therefore combustion chamber has also been completely cut off while this fire proof construction ensure that combustion chamber gases discharge
Cavity（4）Flame contacted with the external world, so as to ensure that fid detector it is some have inflammable gas endanger existing for place carry out
Trouble free service.
The anti-blocking fast knot structure is achieved in that, in combustion chamber gases floss hole main channel（8）Surrounding side increase
Several through holes, i.e. combustion chamber gases floss hole bypass channel（9）.Sample gas includes organic compound, air and other impurities
Carbon dioxide, carbon monoxide, water, imperfect combustion pollutant, dust granules are generated after such as metal particulate, with combustion of hydrogen
Deng.These combustion gas products are from combustion chamber gases floss hole main channel（8）Discharge, may be attached on 8 combustion gases exhaust mouths
On the mouth of main channel, accumulate over a long period and cause main channel（8）Combustion gases exhaust mouth main channel is blocked, and burning gases can not pass through master
Passage（8）Combustion gases exhaust mouth main channel is discharged to the external world, is accumulated in combustion chamber cavity（4）Inside combustion chamber is caused to stop working.Firing
Burn gas discharge outlet main channel（8）Increase combustion chamber gases floss hole bypass channel（9）, burning gases are in combustion chamber gases discharge
Mouth main channel（8）It is blocked after death, can be from combustion chamber gases floss hole bypass channel（9）Discharged by several through holes, ensure combustion
Combustion chamber cavity can be effectively discharged to by burning the burning gases of room（4）Outside.Therefore this anti-blocking fast knot structure ensure that combustion chamber will not
Because of combustion chamber gases floss hole main channel（8）Block and cause burning gases can not be from combustion chamber cavity（4）Discharge and stop working.
The utility model changes existing FID structures and adds the anti-blocking fast knot structure of fire prevention, improves the neck that FID is used
Domain, while the bypass structure of exhaust outlet of combustion chamber is devised, it ensure that the abundant burning of FID combustion chambers.
Those skilled in the art can carry out various remodeling and change to existing to the utility model.Therefore, this practicality
It is new to cover the various remodeling fallen into the range of appended claims and its equivalent and change.
Claims (4)
1. the anti-blocking fast knot structure of the fire prevention of flame ionization ditector combustion chamber, including combustion chamber gases entrance, include hydrogen again
Entrance and sample gas entrance；Combustion chamber, include combustion chamber base and cavity again；Ignition system, include thermocouple and igniting again
Coil；And combustion chamber gases floss hole；It is characterized in that：Also include fire proof construction and anti-blocking fast knot structure, the fire proof construction bag
Fire proof construction body and fire retarding sheet are included, fire retarding sheet is netted ventilation piece, on the main channel of combustion chamber gases floss hole；
The anti-blocking fast knot structure includes anti-blocking dead structural body and combustion chamber gases floss hole bypass channel, combustion chamber gases floss hole
Bypass channel is to increase N number of through hole in the surrounding side of combustion chamber gases floss hole main channel.
2. according to claim 1, the anti-blocking fast knot structure of fire prevention of flame ionization ditector combustion chamber, it is characterized in that：
It is preferred that N is derived from 2-4.
3. according to claim 1, the anti-blocking fast knot structure of fire prevention of flame ionization ditector combustion chamber, it is characterized in that：
The anti-blocking dead structural body is combustion chamber gases floss hole.
4. according to claim 1, the anti-blocking fast knot structure of fire prevention of flame ionization ditector combustion chamber, it is characterized in that：
The fire proof construction body is combustion chamber gases floss hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720874922.4U CN206945628U (en) | 2017-07-19 | 2017-07-19 | The anti-blocking fast knot structure of fire prevention of flame ionization ditector combustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720874922.4U CN206945628U (en) | 2017-07-19 | 2017-07-19 | The anti-blocking fast knot structure of fire prevention of flame ionization ditector combustion chamber |
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| Publication Number | Publication Date |
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| CN206945628U true CN206945628U (en) | 2018-01-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219320A (en) * | 2017-07-19 | 2017-09-29 | 上海汉洁环境工程有限公司 | The anti-blocking fast knot structure of fire prevention of flame ionization ditector combustion chamber |
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2017
- 2017-07-19 CN CN201720874922.4U patent/CN206945628U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219320A (en) * | 2017-07-19 | 2017-09-29 | 上海汉洁环境工程有限公司 | The anti-blocking fast knot structure of fire prevention of flame ionization ditector combustion chamber |
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