CN113325065A - Explosion detection method and device for organic waste gas - Google Patents
Explosion detection method and device for organic waste gas Download PDFInfo
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- CN113325065A CN113325065A CN202110667311.3A CN202110667311A CN113325065A CN 113325065 A CN113325065 A CN 113325065A CN 202110667311 A CN202110667311 A CN 202110667311A CN 113325065 A CN113325065 A CN 113325065A
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- gas
- fid detector
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- organic
- organic waste
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- 239000007789 gas Substances 0.000 title claims abstract description 147
- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 239000010815 organic waste Substances 0.000 title claims abstract description 37
- 238000004880 explosion Methods 0.000 title claims abstract description 24
- 125000003172 aldehyde group Chemical group 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims description 24
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 23
- 229910052739 hydrogen Inorganic materials 0.000 claims description 23
- 239000001257 hydrogen Substances 0.000 claims description 23
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 229930195733 hydrocarbon Natural products 0.000 claims description 7
- 150000002430 hydrocarbons Chemical class 0.000 claims description 7
- 239000005416 organic matter Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000004215 Carbon black (E152) Substances 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 18
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000000451 chemical ionisation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
Abstract
The invention provides an explosion detection method of organic waste gas, which comprises the following steps: step S1: separating the sample gas into an FID detector; step S2: decomposing and burning the sample gas in an F ID detector; step S3: chemically ionizing the sample gas in an FID detector to generate aldehyde groups and positrons; step S4: collecting positrons by a collector of the FD detector to form micro-current, and forming continuous electric signals after the micro-current passes through a signal amplifier; step S5: the invention also provides a device for detecting the organic waste gas, which comprises an F I D detector, wherein the F I D detector comprises a shell and a detection assembly, the detection assembly comprises a collector, a plurality of limiting blocks are arranged on the collector, a heat insulation assembly corresponding to the limiting blocks is sleeved on the collector, and the heat insulation assembly is arranged on the limiting blocks.
Description
Technical Field
The invention relates to the technical field of gas treatment, in particular to an explosion detection method and device for organic waste gas.
Background
In daily production and life, part of volatile organic compounds volatilize to generate combustible and explosive organic tail gas, namely organic waste gas (Vocs), in the using or storing process, the organic waste gas needs to be detected before being discharged in order to avoid the organic waste gas from being exploded by open fire in the air, when the components of the organic waste gas are below an explosion limit, the organic waste gas is discharged, the explosion limit is the maximum proportion occupied by combustible substances in the organic waste gas, and the explosion hidden danger exists when the explosion limit is higher than the proportion.
The existing detection process is that part of sample gas is taken out from organic gas to be detected, the sample gas is subjected to chromatographic column analysis after heat treatment, the composition ratio in organic waste gas is analyzed, the proportion of combustible substances in the sample gas is measured, and when the proportion of the combustible substances is within an explosion limit, the organic gas can be discharged. In the detection process, because the volatilization speed and the detection speed of the organic gas cannot be matched, namely the volatilization speed is often greater than the detection speed, when the detected sample gas is qualified, the components of the organic gas to be discharged are changed, and certain potential safety hazards exist.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the existing organic matter has high volatilization speed, the component detection of the sample gas can not be carried out in real time, and certain discharge hidden trouble exists.
The technical scheme adopted by the invention for solving the technical problems is as follows: an explosion detection method of organic waste gas comprises the following steps:
step S1: separating a single-path sample gas from the organic waste gas to a detection area of an FID detector, wherein the flow of the sample gas is controlled by a flow meter;
step S2: carrying out combustion decomposition on the sample gas in an FID detector;
step S3: introducing air and hydrogen into the FID detector to ignite and generate high-temperature hydrogen flame, and electrolyzing and separating organic combustible gas in the sample gas to generate aldehyde group and positive electron;
step S4: collecting positrons by a collector of the FID detector to form micro-current, and forming an amplified current signal after the micro-current passes through a signal amplifier;
step S5: the FID detector performs AD conversion on the amplified current signal, and reflects the concentration of organic matter in the exhaust gas according to the magnitude of the digital quantity.
Further, the step S3: let in air and hydrogen ignition to produce high temperature hydrogen flame in the FID detector, to organic combustible gas electrolytic separation in the sample gas, produce aldehyde group and positron, still include: and carbon dioxide and water are generated during combustion of the hydrogen and the aldehyde groups, and the carbon dioxide and the water are exhausted through a tail gas outlet pipe.
Further, the step S5: the FID detector performs AD conversion on the amplified current signal, and reflects the concentration of organic matter in the exhaust gas according to the magnitude of the digital quantity, and further includes: the amplified intensity of the current signal and the magnitude of the micro current are in a proportional amplification relation.
Further, the step S5: the FID detector performs AD conversion on the amplified current signal, and reflects the concentration of organic matter in the exhaust gas according to the magnitude of the digital quantity, and further includes: the FID detector calculates the content of the positrons according to the amplified current signal, the number of the positrons is in a direct proportion relation with the content of hydrocarbon substances in the sample gas, and the FID detector calculates the content ratio of the hydrocarbon substances in the sample gas according to the number of the positrons.
Further, the step S2: the sample gas is decomposed and combusted in the FID detector, and the method further comprises the following steps: and a high-temperature combustion area is arranged in the FID detector.
Furthermore, the invention also provides an organic waste gas detection device, which comprises an air extracting motor, an air extracting pump, a flow meter and an FID detector, wherein the FID detector comprises a shell and a detection assembly arranged in the shell, the air extracting motor drives the air extracting pump to operate, the air extracting pump extracts sample gas in the organic waste gas to the shell of the FID detector, the flow meter controls the flow of the sample gas, the detection assembly comprises a collector, a plurality of limiting blocks are arranged on the collector, a heat insulation assembly corresponding to the limiting blocks is further sleeved on the collector, and the heat insulation assembly is arranged on the limiting blocks.
Further, the collector is of a carbon rod structure, and the collector adsorbs positrons in the shell.
Further, the trachea subassembly includes sample gas intake pipe, air intake pipe and tail gas outlet duct, the aspiration pump the flowmeter all communicates to on the sample gas intake pipe, the air intake pipe with sample gas intake pipe communicates to the bottom of casing, the tail gas outlet duct sets up the top of casing.
Furthermore, a hydrogen pipe is arranged on the sample gas inlet pipe, and the hydrogen pipe supplies hydrogen into the shell through the sample gas inlet pipe.
The invention has the advantages that when the detection method is adopted to detect the organic waste gas, the sample gas enters the FID detector through the flowmeter, the sample gas is decomposed into positive electrons, the micro-current caused by positive electrons is detected, namely, the sample gas with determined instantaneous flow is analyzed and detected, the content of organic substances in the instantaneous flow can be determined, the proportion of combustible substances with the instantaneous flow in the organic waste gas is determined, the explosion limit of the organic waste gas can be determined, the discharged organic waste gas is ensured to be always within the explosion limit, and the hidden danger of the discharge of the organic waste gas is eliminated.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of the steps of the detection method of the present invention;
FIG. 2 is a schematic view of the structure of the detecting unit of the present invention;
FIG. 3 is a schematic diagram of the FID detector of the detection apparatus of FIG. 2;
FIG. 4 is a perspective view of a athermal assembly of the FID detector of FIG. 2;
FIG. 5 is a top view of the insulation assembly of FIG. 4 applied to a collector;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
in the figure: the device comprises an explosion detection method-100, an air suction pump-20, an FID detector-40, a collector-432, a signal amplifier-433, an organic waste gas detection device-200, an air suction motor-10, a flowmeter-30, a shell-410, an air pipe assembly-420, a detection assembly-430, a sample gas inlet pipe-421, an air inlet pipe-422, a tail gas outlet pipe-423, a hydrogen pipe-424, an emitter-431, a limiting block-434, a heat insulation assembly-440, a heat insulation cover-441, a penetrating piece-443, a collection hole-444, a fixing block-445, a fixing hole-446, a track block-4431, a cover plate-4432, a fixing column-4433 and a limiting groove-4435.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
As shown in fig. 1 and 2, the present invention provides an explosion detection method 100 for organic waste gas, comprising the steps of:
step S1: separating one-way sample gas from the organic waste gas. A suction pump 20 is provided at the discharge port of the organic waste gas, and a part of the gas path is drawn out from the organic waste gas by the suction pump 10 and introduced into the detection region as a sample gas, and the amount of the introduced sample gas is controlled by a flow meter 30.
Step S2: the sample gas is introduced into the FID detector 40 and decomposed and burned. Specifically, a high-temperature combustion area is provided at the emitter of the FID detector 40, and the sample gas is heated to about 400 ℃ when passing through the high-temperature combustion area.
Step S3: air and hydrogen were introduced and the sample gas was chemically ionized in a FID detector. Organic substances such as hydrocarbons in the sample gas in the FID detector 40 are primarily reduced into aldehyde groups and positrons under the action of high-temperature ionization decomposition, the generated positrons can be collected by the collector 432 and are gathered into micro-current, the aldehyde groups and hydrogen are combusted in a combustion area to form carbon dioxide and water, and the two neutral substances can be evacuated through the tail gas outlet pipe 423.
Step S4: the collector 432 of the FID detector 40 collects the positron generated current, which is amplified to form a continuous electrical signal. In step S3, the organic substances such as hydrocarbons in the sample gas undergo a high temperature chemical ionization reaction to separate positrons, the positrons are collected on the collector 432 to form a micro current, the micro current passes through the signal amplifier 433 to form an amplified signal, and the FID detector 40 analyzes the amplified signal.
Step S5: and controlling the emission of the organic waste gas according to the amplified electric signal. The intensity of the electric signal and the magnitude of the micro-current are in a proportional amplification relation, the FID detector 40 reversely calculates the magnitude of the micro-current according to the electric signal, the micro-current is generated by positron instantaneous aggregation, therefore, the number of the positrons instantaneously aggregated can be deduced according to the magnitude of the micro-current, the positrons are generated in a proportional manner according to the number of the organic substances, the number of the organic substances in the tail gas can be calculated according to the positrons, and the proportion of the organic substances in the sample gas can be calculated by combining the limit of the flowmeter 30 on the flow rate of the sample gas.
The detection method 100 can detect the proportion of organic substances such as hydrocarbons in the emitted tail gas in real time, judge whether the tail gas reaches the explosion limit through comparison, directly treat the organic substances in the tail gas and then emit the organic substances when the proportion of the organic substances in the tail gas is below the explosion limit, treat the tail gas and then emit the tail gas when the proportion of the organic substances reaches or above the explosion limit, and particularly, decompose or burn the organic substances in the tail gas and then evacuate the organic substances.
As shown in fig. 2 to 6, an organic waste gas detection apparatus 200 applied to the above-mentioned organic waste gas explosion detection method includes an air extraction motor 10, an air extraction pump 20, a flow meter 30 and an FID detector 40, wherein the air extraction motor 10 drives the air extraction pump 20 to operate, so as to divide the organic waste gas in the flue into partial sample gas flows, and the flow meter 30 limits the sample gas to ensure that a fixed amount of the sample gas enters the FID detector 40, and in the FID detector 40, the sample gas can be decomposed in real time, and the decomposed current can be amplified and detected, so that the component content of the organic substance in the sample gas can be reversely deduced.
Preferably, as shown in fig. 3-6, the FID detector 40 includes a housing 410, an air tube assembly 420 mounted on the housing 410, and a detection assembly 430 mounted within the housing 410. Casing 410 is roughly vertical axial length column structure, trachea 420 includes sample gas intake pipe 421, air intake pipe 422 and tail gas outlet duct 423, sample gas intake pipe 421 and air intake pipe 422 set up the bottom at casing 410, tail gas outlet duct 423 sets up the top at casing 410, sample gas intake pipe 421 and flowmeter 30 intercommunication, aspiration pump 20 can be with in the sample gas is pumped to sample gas intake pipe 421, it has hydrogen pipe 424 still to open simultaneously on the sample gas intake pipe 421, hydrogen pipe 424 can pour into to sample gas intake pipe 421, hydrogen and air mix the back burning, produce high temperature, under high temperature environment, organic substance carries out redox, produce the positron. The detected sample gas passes through the tail gas outlet pipe 423 and then is discharged out of the housing 410.
As shown in fig. 3, the detecting component 430 includes an emitter 431, a collector 432 and a signal amplifier 433 disposed outside the housing 410, the emitter 431 is disposed at a nozzle of the sample gas inlet pipe 421, the emitter 431 is an electrothermal component, the emitter 431 is energized to generate high temperature, after reaching a combustion temperature, hydrogen and air are continuously combusted at the emitter 431 until the temperature in the housing 410 is sufficient for the sample gas to be decomposed at high temperature, the sample gas is chemically electrolyzed into aldehyde groups and positrons, the collector 432 is electrically connected to the signal amplifier 433, the collector 432 is preferably a carbon rod structure, the collector 432 is in a negative state, the positrons are collected to the collector 432 under an adsorption action of the collector 432 to form micro-currents, the micro-currents are transmitted to the signal amplifier 433, the strength of the micro-currents can be inferred through proportional amplification of the signal amplifier 433, and the content of the positrons is reversely and inversely inferred, determining the content of aldehyde group in the sample gas, and judging whether the sample gas reaches the explosion limit.
As shown in fig. 4 to 6, a plurality of limiting blocks 434 are arranged on the collector 431, a heat insulation assembly 440 corresponding to the limiting blocks 434 is further sleeved on the collector 431, the heat insulation assembly 440 includes a heat insulation cover 441 sleeved on an end of the collector 431 and a penetrating insert 443 arranged on the heat insulation cover 441, a collecting hole 444 is formed on the heat insulation cover 441, the collector 431 can be communicated with a space in the housing 10 through the collecting hole 444, and the collector 431 collects positrons in the housing 10 through the collecting hole 444 to form a weak current. The heat insulation cover 441 is provided with fixing blocks 445 in a protruding mode towards the end portion of the collector 431, the fixing blocks 445 are respectively arranged on two sides of the limiting block 434, fixing holes 446 are formed in the side face, away from the collector 431, of each fixing block 445, the inserting piece 443 comprises a track block 4431 fixedly installed on the heat insulation cover 441 and a cover plate 4432 sliding along the track block 4431, fixing columns 4433 corresponding to the fixing holes 446 are arranged on the side face, facing the fixing holes 446, of the cover plate 4432 in a protruding mode, and the fixing columns 4433 correspond to the fixing holes 446. The track block 4431 is laid on the heat shield 441 corresponding to the fixing hole 446, the track block 4431 is laid on the heat shield 441 according to the fixing hole 446, the track block 4431 is provided with a limiting groove 4435 facing the fixing hole 446, the cover plate 4432 is slidably covered on the track block 4431, the cover plate 4432 is convexly provided with a limiting column (not shown) corresponding to the limiting groove 4435, and when the cover plate 4432 slides on the heat shield 441 along the track block 4431, the limiting column can slide in the limiting groove 4435.
When the heat insulation assembly 440 is used, the heat insulation cover 441 is firstly pushed against the collector 431 until the insertion piece 443 correspondingly penetrates to two sides of the limiting block 434, when the cover plate 4432 can move on the heat insulation cover 441, the cover plate 4432 is pushed against the rail block 4431 to move until the fixing column 4433 on the cover plate 4432 penetrates into the fixing hole 445, when the fixing column 4433 penetrates into the fixing hole 445, the cover plate 4432 can be blocked above the limiting block 434, and under the limitation of the cover plate 4432, the heat insulation cover 441 is fixedly installed on the collector 431. When the heat shield 441 is broken due to high temperature and needs to be replaced, the cover plate 4432 is pushed on the heat shield 441, the fixing posts 4433 are disengaged from the fixing holes 445, the cover plate 4432 is disengaged from the limiting blocks 434, and the heat shield 441 can be detached from the collector 431, so that a new heat shield 441 can be replaced.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. An explosion detection method of organic waste gas is characterized in that: the method comprises the following steps:
step S1: separating a single-path sample gas from the organic waste gas to a detection area of an FID detector, wherein the flow of the sample gas is controlled by a flow meter;
step S2: carrying out combustion decomposition on the sample gas in an FID detector;
step S3: introducing air and hydrogen into the FID detector to ignite and generate high-temperature hydrogen flame, and electrolyzing and separating organic combustible gas in the sample gas to generate aldehyde group and positive electron;
step S4: collecting positrons by a collector of the FID detector to form micro-current, and forming an amplified current signal after the micro-current passes through a signal amplifier;
step S5: the FID detector performs AD conversion on the amplified current signal, and reflects the concentration of organic matter in the exhaust gas according to the magnitude of the digital quantity.
2. The explosion detection method of an organic waste gas according to claim 1, characterized in that: the step S3: let in air and hydrogen ignition to produce high temperature hydrogen flame in the FID detector, to organic combustible gas electrolytic separation in the sample gas, produce aldehyde group and positron, still include: and carbon dioxide and water are generated during combustion of the hydrogen and the aldehyde groups, and the carbon dioxide and the water are exhausted through a tail gas outlet pipe.
3. The explosion detection method of an organic waste gas according to claim 1, characterized in that: the step S5: the FID detector performs AD conversion on the amplified current signal, and reflects the concentration of organic matter in the exhaust gas according to the magnitude of the digital quantity, and further includes: the amplified intensity of the current signal and the magnitude of the micro current are in a proportional amplification relation.
4. The explosion detection method of an organic waste gas according to claim 1, characterized in that: the step S5: the FID detector performs AD conversion on the amplified current signal, and reflects the concentration of organic matter in the exhaust gas according to the magnitude of the digital quantity, and further includes: the FID detector calculates the content of the positrons according to the amplified current signal, the number of the positrons is in a direct proportion relation with the content of hydrocarbon substances in the sample gas, and the FID detector calculates the content ratio of the hydrocarbon substances in the sample gas according to the quantity of the positive points.
5. The explosion detection method of an organic waste gas according to claim 1, characterized in that: the step S2: the sample gas is decomposed and combusted in the FID detector, and the method further comprises the following steps: and a high-temperature combustion area is arranged in the FID detector.
6. An organic exhaust gas detection device applied to any one of claims 1 to 5, characterized in that: including air exhaust motor, aspiration pump, flowmeter and FID detector, the FID detector includes the casing and installs detecting element in the casing, air exhaust motor orders about the aspiration pump operation, the appearance gas in the aspiration pump extraction organic waste gas extremely in the casing of FID detector, the flowmeter control the flow of appearance gas, detecting element includes the collector, be provided with a plurality of restriction pieces on the collector, the collector still overlap be equipped with the thermal-insulated subassembly that the restriction piece corresponds, thermal-insulated unit mount extremely on the restriction piece.
7. The organic exhaust gas detection apparatus according to claim 6, wherein: the collecting electrode is of a carbon rod structure, and the collecting electrode adsorbs positrons in the shell.
8. The organic exhaust gas detection apparatus according to claim 6, wherein: the air pipe assembly comprises a sample gas inlet pipe, an air inlet pipe and a tail gas outlet pipe, the air pump and the flow meter are communicated to the sample gas inlet pipe, the air inlet pipe and the sample gas inlet pipe are communicated to the bottom of the shell, and the tail gas outlet pipe is arranged at the top of the shell.
9. The organic exhaust gas detection apparatus according to claim 8, wherein: open on the sample gas intake pipe has the hydrogen pipe, the hydrogen pipe passes through the sample gas intake pipe to supply hydrogen in the casing.
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| CN202110667311.3A CN113325065A (en) | 2021-06-16 | 2021-06-16 | Explosion detection method and device for organic waste gas |
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| CN202110667311.3A CN113325065A (en) | 2021-06-16 | 2021-06-16 | Explosion detection method and device for organic waste gas |
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|---|---|---|---|---|
| JPS5935134A (en) * | 1982-08-24 | 1984-02-25 | Japan Spectroscopic Co | Method and apparatus for introducing sample into analyzer |
| CN105486784A (en) * | 2016-01-25 | 2016-04-13 | 潍坊学院 | Hydrogen flame ionization detector and working method thereof |
| CN107389780A (en) * | 2017-08-25 | 2017-11-24 | 西安思坦科技有限公司 | A kind of portable volatile contaminant detector |
| CN209783739U (en) * | 2019-05-17 | 2019-12-13 | 眉山麦克在线设备股份有限公司 | Flame-proof type flame luminosity detector |
| CN210742207U (en) * | 2019-08-28 | 2020-06-12 | 南京科捷分析仪器有限公司 | Helium ion gas chromatograph |
| CN211206395U (en) * | 2019-12-19 | 2020-08-07 | 河南省凯陆电子科技有限公司 | Hydrogen flame ionization detector |
-
2021
- 2021-06-16 CN CN202110667311.3A patent/CN113325065A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5935134A (en) * | 1982-08-24 | 1984-02-25 | Japan Spectroscopic Co | Method and apparatus for introducing sample into analyzer |
| CN105486784A (en) * | 2016-01-25 | 2016-04-13 | 潍坊学院 | Hydrogen flame ionization detector and working method thereof |
| CN107389780A (en) * | 2017-08-25 | 2017-11-24 | 西安思坦科技有限公司 | A kind of portable volatile contaminant detector |
| CN209783739U (en) * | 2019-05-17 | 2019-12-13 | 眉山麦克在线设备股份有限公司 | Flame-proof type flame luminosity detector |
| CN210742207U (en) * | 2019-08-28 | 2020-06-12 | 南京科捷分析仪器有限公司 | Helium ion gas chromatograph |
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Application publication date: 20210831 |