CN117451906B - Gas chromatograph processing system applied to hydrogen energy detection - Google Patents
Gas chromatograph processing system applied to hydrogen energy detection Download PDFInfo
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- CN117451906B CN117451906B CN202311777972.7A CN202311777972A CN117451906B CN 117451906 B CN117451906 B CN 117451906B CN 202311777972 A CN202311777972 A CN 202311777972A CN 117451906 B CN117451906 B CN 117451906B
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 97
- 239000001257 hydrogen Substances 0.000 title claims abstract description 97
- 238000012545 processing Methods 0.000 title claims abstract description 23
- 239000007789 gas Substances 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 52
- 230000004044 response Effects 0.000 claims abstract description 35
- 230000000737 periodic effect Effects 0.000 claims abstract description 24
- 230000001360 synchronised effect Effects 0.000 claims abstract description 21
- 239000012159 carrier gas Substances 0.000 claims abstract description 17
- 230000008859 change Effects 0.000 claims abstract description 14
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 150000002500 ions Chemical class 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000000451 chemical ionisation Methods 0.000 description 1
- 238000013375 chromatographic separation Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N30/64—Electrical detectors
- G01N30/68—Flame ionisation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/86—Signal analysis
- G01N30/8675—Evaluation, i.e. decoding of the signal into analytical information
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
- G06F1/12—Synchronisation of different clock signals provided by a plurality of clock generators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
- G01N2030/324—Control of physical parameters of the fluid carrier of pressure or speed speed, flow rate
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The invention relates to the technical field of gas chromatograph detection, and particularly discloses a gas chromatograph processing system applied to hydrogen energy detection, which comprises: the processing device is connected with the hydrogen flame ionization detector and the sample ring, and is used for monitoring a response signal of the hydrogen flame ionization detector and consumption of a sample to be detected in the sample ring, periodically collecting the response signal and the consumption according to a synchronous clock time sequence and forming a periodic data packet, and acquiring speed change of the sample to be detected carried in carrier gas entering the hydrogen flame ionization detector in real time through the periodic data packet. According to the invention, the carrier gas and the sample to be tested are sequentially input into the sample ring, and when each sample tube advances the sample to be tested, the sample to be tested has different advancing speeds, so that the speed change of the sample to be tested at different advancing speeds entering the hydrogen flame ionization detector can be obtained.
Description
Technical Field
The invention relates to the technical field of gas chromatograph processing systems, in particular to a gas chromatograph processing system applied to hydrogen energy detection.
Background
The gas chromatograph is an instrument for carrying out qualitative and quantitative analysis on a multi-component mixture by utilizing chromatographic separation and detection technology, and the structure of the gas chromatograph generally comprises a gas path part, a sample injection part, a separation part, a detection part and a temperature control part, wherein the detection part converts the separated concentration or mass into an electric signal so as to be convenient for recording and processing, therefore, the gas chromatograph comprises a concentration type detector and a mass type detector according to functions, the concentration type detector mainly measures the concentration change of components in carrier gas, the mass type detector mainly measures the speed change of a sample in the carrier gas entering the detector, namely, the response signal of the detector is proportional to the mass of the components entering the detector in unit time; the mass detector is mainly used for detecting hydrogen flame ionization flame luminosity and the like.
It can be seen from the above that when the hydrogen energy source is detected, the mass detector is used, the hydrogen energy source is used in the gas chromatograph to produce flame by using hydrogen and air combustion as energy sources, when organic matters enter the flame, chemical ionization is generated at high temperature, ions which are several orders of magnitude higher than the base flow are generated by ionization, the ions are directionally moved under the action of high-voltage electric field to form ion flow, the ion flow is amplified by high resistance to become an electric signal proportional to the amount of organic compounds entering the flame, and then the speed change of the sample to be detected entering the hydrogen flame ionization detector can be obtained according to the quantitative analysis of the electric signal.
The conventional technical means is that the ion flow collected by using the polarized electrode arranged in the hydrogen flame ionization detector generates a signal through the high resistance of the amplifier, and the signal enters the data acquisition system after being amplified, and the carrier gas is generally input according to the set flow, but the input flow of the carrier gas is almost constant, and the speed change of the sample to be detected entering the hydrogen flame ionization detector under various different flow levels can not be monitored.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a gas chromatograph processing system for hydrogen energy detection.
In order to achieve the above object, the present invention provides a gas chromatograph processing system applied to hydrogen energy detection,
comprising the following steps: the device comprises a hydrogen flame ionization detector, a sample ring and a detection system, wherein a driving system is arranged at the bottom of the sample ring, the sample ring is connected to a main pipe component, the main pipe component is connected with a capillary column through a main valve, and the capillary column extends into the hydrogen flame ionization detector;
the detection system includes:
the processing device is connected with the hydrogen flame ionization detector and the sample ring, and is used for monitoring a response signal of the hydrogen flame ionization detector and consumption of a sample to be detected in the sample ring, periodically collecting the response signal and the consumption according to a synchronous clock time sequence and forming a periodic data packet, and acquiring the speed change of the sample to be detected carried in the carrier gas entering the hydrogen flame ionization detector in real time through the periodic data packet;
wherein the processing device comprises:
the monitoring module with synchronous clock control is respectively connected to the hydrogen flame ionization detector and the sample ring, and a periodic data packet is formed by respectively monitoring the response signal of the hydrogen flame ionization detector and the consumption of the sample to be tested in the sample ring;
the data packet analyzer is connected with the monitoring module with the synchronous clock control and is used for receiving the periodic data packet so as to correspondingly acquire a response signal of a sample to be detected entering the hydrogen flame ionization detector and weight data of the sample to be detected entering the hydrogen flame ionization detector from the received periodic data packet;
the data synchronization module is configured to mirror-image and acquire a response signal of a sample to be detected entering the hydrogen flame ionization detector and weight data of the sample to be detected entering the hydrogen flame ionization detector from the data packet analyzer;
and the processing module is connected with the data synchronization module to receive a response signal of the sample to be detected entering the hydrogen flame ionization detector and weight data of the sample to be detected entering the hydrogen flame ionization detector, and the speed change of the sample to be detected entering the hydrogen flame ionization detector carried in the carrier gas is measured through the response signal of the sample to be detected entering the hydrogen flame ionization detector and the weight data of the sample to be detected entering the hydrogen flame ionization detector.
Further, the monitoring module with synchronous clock control includes:
the monitoring module is connected with the hydrogen flame ionization detector and the sample ring;
the synchronous clock chip is connected with the monitoring module and used for providing a synchronous reference clock for the monitoring module, and the monitoring module is configured to sequentially acquire a response signal of the hydrogen flame ionization detector and the consumption of a sample to be detected in the sample ring according to a set monitoring period based on the synchronous reference clock so as to form a periodic data packet.
Further, the sample loop comprises:
the sample tube is internally provided with a plurality of sample tubes, an equal amount of sample to be detected is arranged in each sample tube, each sample tube is connected to the main tube through an independent control valve and a conveying pipeline, the main tube is connected with a capillary column through the main valve, and the capillary column extends into the hydrogen flame ionization detector.
Further, a driving system is arranged at the bottom of the sample cylinder, the driving system is provided with a plurality of driving units, each driving unit is used for corresponding to one sample tube, each driving unit comprises a micro driving cylinder, a push rod is arranged on the micro driving cylinder, a piston is arranged at the top of the push rod, and the piston is arranged in the sample tube.
The invention has the beneficial effects that:
according to the invention, carrier gas and a sample to be detected are sequentially input into a sample ring, mixed gas formed by the carrier gas and the sample to be detected is uniformly filled into a sample tube in the sample ring, so that equal amounts of the sample to be detected are arranged in each sample tube, then the propelling power of each micro driving cylinder is set, the propelling powers of different micro driving cylinders are different, so that different micro driving cylinders are controlled to push a push rod according to different speeds to drive a piston to move in the corresponding sample tube, the sample to be detected in the sample tube is pressurized, the sample to be detected in different sample tubes enters a main tube according to different set flow rates, then enters a capillary column through the main tube, and then enters a nozzle of a hydrogen flame ionization detector through the capillary column; by the arrangement, when each sample tube advances the sample to be detected, the sample to be detected has different advancing speeds, so that the speed change of the sample to be detected at different advancing speeds entering the hydrogen flame ionization detector can be obtained; compared with the prior art, the ionization efficiency of the components in the hydrogen flame is very low, and about one hundred thousand of carbon atoms are ionized, so that the ionization efficiency is different when samples to be tested with different propulsion speeds enter the hydrogen flame ionization detector for ionization, ionized ion current signals are output to the processing module, a chromatographic outflow curve with peak areas corresponding to different speed changes and proportional to the component mass is obtained, the chromatographic outflow curve is analyzed, the linear range of the sensitivity of the hydrogen flame ionization detector in the gas chromatograph is obtained, and the optimal propulsion speed range is deduced according to the linear range.
Drawings
FIG. 1 is a schematic diagram of a system framework of the present invention;
FIG. 2 is a schematic view of a sample loop layout according to the present invention;
fig. 3 is a schematic structural diagram of the layout of the micro driving cylinder in the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 3, in order to achieve the above object, an object of the present invention is to provide a gas chromatograph processing system applied to hydrogen energy detection; comprising the following steps: the hydrogen flame ionization detector 105, the sample ring 100 and the detection system, wherein a driving system is arranged at the bottom of the sample ring 100, the sample ring 100 is connected to the main pipe 102, the main pipe 102 is connected with the capillary column 104 through a main valve, and the capillary column 104 extends into the hydrogen flame ionization detector 105; the detection system includes: comprising the following steps: the processing device is connected with the hydrogen flame ionization detector 105 and the sample ring 100, and is used for monitoring a response signal of the hydrogen flame ionization detector 105 and consumption of a sample to be detected in the sample ring 100, periodically collecting the response signal and the consumption according to a synchronous clock time sequence and forming a periodic data packet, and acquiring speed change of the sample to be detected carried in the carrier gas entering the hydrogen flame ionization detector 105 in real time through the periodic data packet; wherein the processing device comprises: a monitoring module with synchronous clock control, which is respectively connected to the hydrogen flame ionization detector 105 and the sample ring 100, and is used for respectively monitoring the response signal of the hydrogen flame ionization detector 105 and the consumption of the sample to be tested in the sample ring 100 to form a periodic data packet; the data packet analyzer is connected with the monitoring module with synchronous clock control and is used for receiving the periodic data packet so as to correspondingly acquire a response signal of a sample to be detected entering the hydrogen flame ionization detector 105 and weight data of the sample to be detected entering the hydrogen flame ionization detector 105 from the received periodic data packet, and the data synchronization module is configured to mirror-image the response signal of the sample to be detected entering the hydrogen flame ionization detector 105 and the weight data of the sample to be detected entering the hydrogen flame ionization detector 105 from the data packet analyzer; and the processing module is connected with the data synchronization module to receive a response signal of the sample to be detected entering the hydrogen flame ionization detector 105 and weight data of the sample to be detected entering the hydrogen flame ionization detector 105, and the speed change of the sample to be detected entering the hydrogen flame ionization detector 105 carried in the carrier gas is measured through the response signal of the sample to be detected entering the hydrogen flame ionization detector 105 and the weight data of the sample to be detected entering the hydrogen flame ionization detector 105.
In some embodiments, the monitoring module with synchronous clock control includes: a monitoring module connecting the hydrogen flame ionization detector 105 and the sample ring 100; the synchronous clock chip is connected with the monitoring module and is used for providing a synchronous reference clock for the monitoring module, and the monitoring module is configured to sequentially acquire a response signal of the hydrogen flame ionization detector 105 and the consumption of the sample to be tested in the sample ring 100 according to a set monitoring period based on the synchronous reference clock so as to form a periodic data packet.
Further, the monitoring module of the present application has: a plurality of groups of monitoring units; a monitoring task management unit; a data conversion unit; a data packing unit; the monitoring task management unit is configured to turn on the plurality of groups of monitoring units when the set monitoring time is turned on, and perform clock correction on the turned-on plurality of groups of monitoring units so that the plurality of groups of monitoring units have the same clock reference, and then control the plurality of groups of monitoring units with the same clock reference to complete the following tasks: (1) acquiring a response signal of the hydrogen flame ionization detector 105 according to a set monitoring period; (2) acquiring the propelling power of a micro driving cylinder 201 arranged at the bottom of the sample ring 100 according to a set monitoring period; the data conversion unit is used for converting the consumption of the sample to be tested in the sample ring 100 in a set monitoring period based on the propelling power of the micro-driving cylinder 201; the data packaging unit is used for writing the response signals and the consumption acquired in the same set monitoring period into a set data chain to form a periodic data packet.
In some embodiments, the sample ring 100 comprises: the sample tube is internally provided with a plurality of sample tubes 101, an equal amount of sample to be detected is arranged in each sample tube 101, each sample tube 101 is connected to a main tube component 102 through an independent control valve and a conveying pipeline, the main tube component 102 is connected with a capillary column 104 through a main valve 103, and the capillary column 104 extends into a hydrogen flame ionization detector 105.
Further, a driving system is arranged at the bottom of the sample cylinder, the driving system is provided with a plurality of driving units, each driving unit is used for corresponding to one sample tube 101, the driving unit comprises a micro driving cylinder 201, a push rod 202 is arranged on the micro driving cylinder 201, a piston 203 is arranged at the top of the push rod 202, and the piston 203 is arranged in the sample tube 101; the propelling power of each micro driving cylinder 201 is set, and the propelling power of different micro driving cylinders 201 is different, so that different micro driving cylinders 201 are controlled to push rods 202 according to different speeds to drive pistons 203 to move in corresponding sample tubes 101, so as to pressurize samples to be tested in the sample tubes 101, the samples to be tested in different sample tubes 101 enter a main pipe 102 according to different set flow rates, then enter a capillary column 104 through the main pipe 102, and then enter a nozzle of a hydrogen flame ionization detector 105 through the capillary column 104.
The principle of the invention is as follows: according to the method, carrier gas and samples to be tested are sequentially input into a sample ring 100, mixed gas formed by the carrier gas and the samples to be tested is uniformly filled into a sample tube 101 in the sample ring 100, so that equal amounts of samples to be tested are arranged in each sample tube 101, then the propelling power of each micro driving cylinder 201 is set, the propelling powers of different micro driving cylinders 201 are different, and therefore different micro driving cylinders 201 are controlled to push a push rod 202 according to different speeds to drive a piston 203 to move in the corresponding sample tube 101, the samples to be tested in the sample tube 101 are pressurized, the samples to be tested in different sample tubes 101 enter a main tube 102 according to different set flow rates, then enter a capillary column 104 through the main tube 102, and then enter a nozzle of a hydrogen flame ionization detector 105 through the capillary column 104; through the arrangement, when the sample tube 101 is used for pushing the sample to be tested, the sample to be tested has different pushing speeds, a plurality of groups of monitoring units are started when the monitoring time is set to be started, and clock correction is performed on the started plurality of groups of monitoring units, so that the plurality of groups of monitoring units have the same clock reference, and then the plurality of groups of monitoring units with the same clock reference are controlled to complete the following tasks: (1) acquiring a response signal of the hydrogen flame ionization detector 105 according to a set monitoring period; (2) acquiring the propelling power of a micro driving cylinder 201 arranged at the bottom of the sample ring 100 according to a set monitoring period; the data conversion unit is used for converting the consumption of the sample to be tested in the sample ring 100 in a set monitoring period based on the propelling power of the micro-driving cylinder 201; the data packaging unit is used for writing the response signals and the consumption acquired in the same set monitoring period into a set data chain to form a periodic data packet; the data packet analyzer receives the periodic data packet to correspondingly acquire a response signal of the sample to be detected entering the hydrogen flame ionization detector 105 and weight data of the sample to be detected entering the hydrogen flame ionization detector 105 from the received periodic data packet; the data synchronization module obtains a response signal of a sample to be detected entering the hydrogen flame ionization detector 105 and weight data of the sample to be detected entering the hydrogen flame ionization detector 105 from a mirror image in the data packet analyzer; the processing module is connected with the data synchronization module to receive a response signal of the sample to be detected entering the hydrogen flame ionization detector 105 and weight data of the sample to be detected entering the hydrogen flame ionization detector 105, and the speed change of the sample to be detected entering the hydrogen flame ionization detector 105 carried in the carrier gas is measured through the response signal of the sample to be detected entering the hydrogen flame ionization detector 105 and the weight data of the sample to be detected entering the hydrogen flame ionization detector 105.
The application also needs to explain that in the tradition, the ionization efficiency of component in hydrogen flame is very low, and about one fifty ten thousandth carbon atom is ionized, therefore, the ionization efficiency when the sample that awaits measuring of different propulsion speeds gets into hydrogen flame ionization detector and ionizes is also different, and the ionization back ion current signal is exported in the processing module, obtains the corresponding peak area of different speed variation and the chromatographic outflow curve of component mass in direct proportion, through analyzing the chromatographic outflow curve to obtain the linear range of the sensitivity of hydrogen flame ionization detector in the gas chromatograph, deduce optimum propulsion speed range according to linear range.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. Be applied to gas chromatograph processing system that hydrogen energy detected, its characterized in that includes:
the device comprises a hydrogen flame ionization detector, a sample ring and a detection system, wherein a driving system is arranged at the bottom of the sample ring, the sample ring is connected to a main pipe component, the main pipe component is connected with a capillary column through a main valve, and the capillary column extends into the hydrogen flame ionization detector; the detection system includes:
the processing device is connected with the hydrogen flame ionization detector and the sample ring, and is used for monitoring a response signal of the hydrogen flame ionization detector and consumption of a sample to be detected in the sample ring, periodically collecting the response signal and the consumption according to a synchronous clock time sequence and forming a periodic data packet, and acquiring the speed change of the sample to be detected carried in the carrier gas entering the hydrogen flame ionization detector in real time through the periodic data packet; wherein the processing device comprises:
the monitoring module with synchronous clock control is respectively connected to the hydrogen flame ionization detector and the sample ring, and a periodic data packet is formed by respectively monitoring the response signal of the hydrogen flame ionization detector and the consumption of the sample to be tested in the sample ring;
the data packet analyzer is configured to be connected with a monitoring module with synchronous clock control and is used for receiving the periodic data packet so as to correspondingly acquire a response signal of a sample to be detected entering the hydrogen flame ionization detector and weight data of the sample to be detected entering the hydrogen flame ionization detector from the received periodic data packet;
the data synchronization module is configured to mirror-image and acquire a response signal of a sample to be detected entering the hydrogen flame ionization detector and weight data of the sample to be detected entering the hydrogen flame ionization detector from the data packet analyzer;
the processing module is connected with the data synchronization module to receive a response signal of a sample to be detected entering the hydrogen flame ionization detector and weight data of the sample to be detected entering the hydrogen flame ionization detector, and the speed change of the sample to be detected entering the hydrogen flame ionization detector carried in carrier gas is measured through the response signal of the sample to be detected entering the hydrogen flame ionization detector and the weight data of the sample to be detected entering the hydrogen flame ionization detector;
the monitoring module is connected with the hydrogen flame ionization detector and the sample ring;
the synchronous clock chip is connected with the monitoring module and used for providing a synchronous reference clock for the monitoring module, and the monitoring module is configured to sequentially acquire a response signal of the hydrogen flame ionization detector and the consumption of a sample to be detected in the sample ring according to a set monitoring period based on the synchronous reference clock so as to form a periodic data packet;
the sample loop comprises:
the sample tube is internally provided with a plurality of sample tubes, an equal amount of sample to be detected is arranged in each sample tube, each sample tube is connected to a main tube component through an independent control valve and a conveying pipeline, the main tube component is connected with a capillary column through a main valve, and the capillary column extends into the hydrogen flame ionization detector;
the bottom of sample section of thick bamboo is provided with actuating system, actuating system has a plurality of drive unit, and every drive unit is used for corresponding with a sample pipe, the drive unit includes miniature drive cylinder, sets up the push rod on miniature drive cylinder, is provided with the piston at the top of push rod, the piston sets up in the sample pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311777972.7A CN117451906B (en) | 2023-12-22 | 2023-12-22 | Gas chromatograph processing system applied to hydrogen energy detection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311777972.7A CN117451906B (en) | 2023-12-22 | 2023-12-22 | Gas chromatograph processing system applied to hydrogen energy detection |
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| CN117451906B true CN117451906B (en) | 2024-03-08 |
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| CN111443159A (en) * | 2020-01-23 | 2020-07-24 | 华东理工大学 | Gas-sensitive-gas chromatography multi-source sensing and electronic nose instrument on-line detection method |
| JP7256342B1 (en) * | 2021-12-24 | 2023-04-12 | 生態環境部南京環境科学研究所 | Method for detecting/analyzing benzenes in groundwater at polluted site and device for detecting/analyzing the same |
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