CN216696192U - For detecting C5F10Device for decomposing components by O gas discharge - Google Patents

For detecting C5F10Device for decomposing components by O gas discharge Download PDF

Info

Publication number
CN216696192U
CN216696192U CN202123085885.4U CN202123085885U CN216696192U CN 216696192 U CN216696192 U CN 216696192U CN 202123085885 U CN202123085885 U CN 202123085885U CN 216696192 U CN216696192 U CN 216696192U
Authority
CN
China
Prior art keywords
gas
tank
micro
oxygen
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202123085885.4U
Other languages
Chinese (zh)
Inventor
刘双双
刘祥峰
张佳
庚振新
崔兆轩
张然植
封鼎
韩磊
徐建源
李辉
林莘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang University of Technology
Original Assignee
Shenyang University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenyang University of Technology filed Critical Shenyang University of Technology
Priority to CN202123085885.4U priority Critical patent/CN216696192U/en
Application granted granted Critical
Publication of CN216696192U publication Critical patent/CN216696192U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

The present invention provides a method for detecting C5F10A device for decomposing components by O gas discharge relates to the technical field of gas detection, and comprises a gas decomposition module and a gas detection module, wherein the gas decomposition module comprises an alternating current power supply, a voltage regulator, a transformer, a resistor, a rectifier diode, a capacitor, a barometer, a water tank and a drying filterDevice, needle tube, oxygen tank, valve, C5F10An O gas tank, an exhaust port and a ball electrode; the gas detection device comprises a helium tank, a six-way valve, a gas chromatography-mass spectrometer GC-MS and a computer. And after the experiment is finished, collecting the experimental gas from the gas collecting port, filling the experimental gas into the six-way valve, filling the experimental gas into the GC-MS by using carrier gas, and analyzing the gas to be detected by using a computer.

Description

For detecting C5F10Device for decomposing components by O gas discharge
Technical Field
The utility model relates to the technical field of gas detection, in particular to a method for detecting C5F10And O gas discharge decomposing component.
Background
SF6The gas is the gas with the strongest insulating capability which is generally accepted in the world nowadays, and is widely used in various equipment due to the excellent insulating property, and the most applied at present are equipment such as a gas insulated pipeline bus (GIL) and the like. The high-voltage switch gear has the highest requirement on insulation, and the used amount of the high-voltage switch gear occupies the whole SF680% of the amount used, medium voltage pairs SF with relatively low insulation requirements6The dependence of (2) also accounts for 10%. With the sudden and violent expansion of the power industry, particularly the heavy use of medium and high voltage equipment, SF is caused6The usage amount is multiplied. However, a large number of studies have found that SF6The Global Warming Potential (GWP) of the catalyst can reach CO223900 times of the product, and its time in atmosphere can reach 2400 yearsOn the left and right, this indicates that the gas is difficult to eliminate in a short time once it enters the atmosphere. As such, the SF is cut down from the analysis of the multi-angle consideration6The use of the SF is a very urgent matter to be carried out in the whole power industry, and various scholars start to replace the SF from the seventies of the last century6Research on gas, and finding out environmental protection gas to replace SF6The use in the power industry is not slow enough.
C currently developed by 3M company5F10O has better insulating property and environmental protection characteristic, and some key indexes such as GWP value, insulating strength and the like are ideal, so C5F10O is considered as the most potent substitute for SF6The insulating medium of (1). But at the present stage for the novel environment-friendly medium C5F10The studies on O, especially C, on the decomposition by electric discharge have not yet been completed5F10The O discharge decomposition mechanism and the analysis of the components of the decomposition products under the micro-water and micro-oxygen conditions have certain defects, and the SF is considered6HF which is highly corrosive under the micro-water and micro-oxygen condition can be generated, so that the corrosion resistance to C is high5F10The analysis of the discharge products of O under the micro-water and micro-oxygen conditions needs to be further studied.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a method for detecting C5F10And O gas discharge decomposing component.
For detecting C5F10The device for decomposing the components by O gas discharge comprises a gas decomposition module and a gas detection module;
the gas decomposition module includes: the device comprises an alternating current power supply, a voltage regulator, a transformer, a resistor, a rectifier diode, a capacitor, a waste gas recovery device and an experimental gas tank; the alternating current power supply is connected with the voltage regulator and the primary side of the transformer, the positive pole of the secondary side of the transformer is respectively connected with the resistor, the rectifier diode, the positive pole of the capacitor and the positive pole of the experimental gas tank, and the negative pole of the secondary side of the transformer is connected with the negative pole of the capacitor and the negative pole of the experimental gas tank and is connected to the ground; the waste gas recovery device is connected with an exhaust port of the experimental gas tank;
wherein the experimental gas tank comprises: barometer, sealed tank, ball electrode, micro-water device, micro-oxygen device, filtering and drying device, C5F10An O gas cylinder; the micro-water device comprises a water tank, a micro-water device valve and a needle tube; the micro-oxygen device comprises an oxygen tank valve and an oxygen bottle; the filtering and drying device comprises a filter screen and a molecular sieve, a pair of ball electrodes are arranged in the sealed tank body, and the outside of the sealed tank body is respectively connected with a barometer, a micro-water device, a micro-oxygen device and a C5F10An O gas cylinder; wherein the needle tube in the micro-water device is connected with the closed tank body, the other end of the needle tube is connected with the micro-water device valve, the other end of the micro-water device valve is connected with the water tank, the oxygen cylinder in the micro-oxygen device is connected with the oxygen cylinder valve, the other end of the oxygen cylinder valve is connected with the filtering and drying device, one end of the filtering and drying device is connected with the experimental gas tank, and the other end of the filtering and drying device is respectively connected with the oxygen cylinder and the C5F10An O gas cylinder;
the gas detection device includes: helium tank, six-way valve, sample vacuum gas collecting bag, gas chromatography-mass spectrometer, and computer. The helium tank is connected with the carrier gas port of the six-way valve, the gas inlet of the six-way valve is connected with the sample vacuum gas collection bag, and the gas collection port of the six-way valve is connected with the vacuum gas collection bag. The gas chromatography-mass spectrometer comprises a gas chromatograph, a mass spectrometer and a detector, wherein the gas chromatograph is connected with an EI ion source of the mass spectrometer, and the detector is positioned inside the chromatograph and belongs to a detection unit of the gas chromatograph. One end of the gas chromatography-mass spectrometer is connected with the six-way valve for air inlet, and the other end of the gas chromatography-mass spectrometer is connected with the computer.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the utility model provides a method for detecting C5F10The device for decomposing the components by discharging the O gas has the following beneficial effects:
the experimental device provided by the utility model has small volume, reduces the usage amount of the gas to be measured, and is economical and economical;
the detection device provided by the utility model can directly detect the C5F10The decomposition product of O under the micro-water and micro-oxygen condition is detected, and the detection result can be used for detecting the simulation calculation result, so that the method has certain practical value;
the detection device provided by the utility model has a real-time acquisition function, can provide data acquisition of full scanning and selective ion scanning, and can obtain accurate qualitative and quantitative data results;
the experimental device provided by the utility model has high sensitivity and is simple and convenient to operate.
Drawings
FIG. 1 is a schematic view of a gas discharge decomposition device according to the present invention;
in the figure, 1-alternating current power supply, 2-voltage regulator, 3-transformer, 4-resistor, 5-rectifier diode, 6-capacitor, 7-barometer, 8-water tank, 9-micro water device valve, 10-needle tube, 11-ball electrode, 12-closed tank, 13-experimental tank valve, 14-exhaust port, 15-drying filter device, 16-oxygen tank valve, 17-oxygen bottle, 18-C5F10O gas tank valve, 19-C5F10An O gas bottle;
FIG. 2 is a schematic view of the structure of the gas analyzing apparatus according to the present invention;
in the figure, 20-helium tank, 21-sample vacuum gas collection bag valve, 22-six-way valve, 23-gas chromatography-mass spectrometer, 24-computer;
FIG. 3 is a schematic diagram of the six-way valve in the front and rear states of sample injection;
in the figure, 25-sample vacuum air collecting bag valve, 26-gas inlet phase, 27-exhaust phase, 28-six-way valve cavity, 29-sample inlet, 30-gas carrier, 31-gas phase after phase change, 32-gas outlet after phase change, 33-sample inlet after phase change, and 34-gas carrier after phase change.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
For detecting C5F10The device for decomposing the components by O gas discharge, as shown in FIG. 1, comprises a gasThe decomposition module and the gas detection module;
the gas decomposition module includes: the device comprises an alternating current power supply, a voltage regulator, a transformer, a resistor, a rectifier diode, a capacitor, a waste gas recovery device and an experimental gas tank; the alternating current power supply is connected with the voltage regulator and the primary side of the transformer, the positive pole of the secondary side of the transformer is respectively connected with the resistor, the rectifier diode, the positive pole of the capacitor and the positive pole of the experimental gas tank, and the negative pole of the secondary side of the transformer is connected with the negative pole of the capacitor and the negative pole of the experimental gas tank and is connected to the ground; the waste gas recovery device is connected with an exhaust port of the experimental gas tank;
wherein the experimental gas tank comprises: barometer, sealed tank, ball electrode, micro-water device, micro-oxygen device, filtering and drying device, C5F10An O gas cylinder; the micro-water device comprises a water tank, a micro-water device valve and a needle tube; the micro-oxygen device comprises an oxygen tank valve and an oxygen bottle; the filtering and drying device comprises a filter screen and a molecular sieve, a pair of ball electrodes are arranged in the sealed tank body, and the outside of the sealed tank body is respectively connected with a barometer, a micro-water device, a micro-oxygen device and a C5F10An O gas cylinder; wherein the needle tube in the micro-water device is connected with the closed tank body, the other end of the needle tube is connected with the micro-water device valve, the other end of the micro-water device valve is connected with the water tank, the oxygen cylinder in the micro-oxygen device is connected with the oxygen cylinder valve, the other end of the oxygen cylinder valve is connected with the filtering and drying device, one end of the filtering and drying device is connected with the experimental gas tank, and the other end of the filtering and drying device is respectively connected with the oxygen cylinder and the C5F10An O gas cylinder;
as shown in fig. 2, the gas detection apparatus includes: helium tank, six-way valve, sample vacuum gas collecting bag, gas chromatography-mass spectrometer GC-MS, and computer. The helium tank is connected with the carrier gas port of the six-way valve, the gas inlet of the six-way valve is connected with the sample vacuum gas collection bag, and the gas collection port of the six-way valve is connected with the vacuum gas collection bag. The gas chromatography-mass spectrometer in this embodiment adopts A7200 produced by Algent company, including gas chromatograph, 5973C mass spectrometer and detector, wherein gas chromatograph is connected with the EI ion source of mass spectrometer, and the detector is located inside the chromatograph, belongs to gas chromatograph's detecting element. The gas chromatograph chromatographic column adopts a GS-GasPro chromatographic column, the length of the column is 60m, the inner diameter of the column is 3.2mm, and the mass spectrometer adopts an electron bombardment ionization source. One end of the gas chromatography-mass spectrometer is connected with the six-way valve for air inlet, and the other end of the gas chromatography-mass spectrometer is connected with a computer.
Fig. 3 is a schematic diagram showing the states before and after the sample injection by the six-way valve, in which the air inlet 26 before the experiment is connected to the six-way valve 1, the air outlet 27 is connected to the six-way valve 3, the sample inlet 29 is connected to the six-way valve 6, and the carrier gas inlet 30 is connected to the six-way valve 5. After sample injection, the six-way valve is rotated, the gas inlet 31 is connected with the six-way valve 3, the gas outlet 32 is connected with the six-way valve 4, the sample inlet 33 is connected with the six-way valve 1, and the carrier gas inlet 34 is connected with the six-way valve 6.
In the embodiment, the alternating current power supply is 220V, the voltage regulator is 220V/252V, the transformer is 252V/100kV, the capacitor is 0.26uF, the resistor is 1 MOmega, and the voltage is an adjustable high-voltage direct current power supply of 0-100 kV. The closed cavity is cylindrical, the inner radius is 150mm, the height is 500mm, the metal sealing cover plates at the upper end and the lower end are made of stainless steel, the side wall is made of PMMA transparent material, and the discharge condition can be observed conveniently. In the device, the ball electrodes are made of brass and are spaced by 10 mm.
The gas collecting bag in the embodiment is 70um in film thickness, 200mL in volume, made of fluorinated ethylene propylene, corrosion-resistant, good in sealing performance and capable of storing various gases with high corrosivity and high chemical property.
In this example, the GS-GasPro column 30 was 60m in length and 0.32mm in inner diameter, and used as a second pass analytical column for analysis of halogenated hydrocarbons.
In this embodiment, the gas chromatography-mass spectrometer employs an Electron Impact (EI) source, a quadrupole mass analyzer, and an electron multiplier detector.
In this embodiment, the parameters of the chromatograph-mass spectrometer are set as follows: the injection port temperature is 120 ℃, the valve box temperature is 45 ℃, and the flow rate of the chromatographic column is 3 mL/min. When the GS-GasPro chromatographic column works, the initial temperature of a column box is 45 ℃ and is kept for 15min, then the initial temperature is increased to 85 ℃ at the speed of 10 ℃/min and is kept for 10min, and finally the initial temperature is increased to 150 ℃ at the speed of 10 ℃/min; the energy of the electron bombardment source is 70eV by adopting a Scan scanning mode.
In another aspect, the aforementioned method for detecting C5F10The detection method realized by the device for decomposing the components by discharging the O gas comprises the following steps:
step 1: the discharge decomposition device is integrally verified, the accuracy and the reliability of an experiment are guaranteed, and the distance between ball electrodes in the experiment gas tank is adjusted, so that the electric field is an uneven electric field.
In the embodiment, the distances between the ball electrodes in the tank body are respectively adjusted to be 5mm and 25mm, so that the electric fields are respectively an uneven electric field and an extremely uneven electric field;
step 2: carrying out vacuum treatment on the experimental gas tank by using a vacuum pump, and when the air pressure indicating number is zero, indicating that the experimental gas tank is in a vacuum state;
and step 3: adding water into the water tank, opening a first valve, adding the water into the needle tube, and pressing the needle tube to enable the water to flow into the experiment air tank;
and 4, step 4: opening C5F10C of O gas tank5F10The valve of the O gas tank and the valve of the oxygen tank are filled with C through the filtering and drying device5F10O and O2In a ratio of 9: 1 and 8: 2;
and 5: switching on an alternating current power supply, applying continuously increased voltage to the experimental gas tank through a voltage regulator and a transformer, and stopping after continuously setting time;
in the embodiment, the current is respectively maintained at 5kA, 10kA and 15kA, and each current is kept for 30 min;
step 6: collecting gas from the exhaust port by using a sample vacuum gas collecting bag after the discharge is finished;
and 7: and arranging a sample vacuum air collecting bag at the air collecting port of the six-way valve, introducing collected gas into the air inlet of the six-way valve, detecting whether the gas conveying pipeline is normal, opening carrier gas to be connected into the carrier gas inlet of the six-way valve, rotating the six-way valve to enable the carrier gas to charge the gas to be detected into a phase change port, and then enabling the gas to enter a gas chromatography-mass spectrometer.
And 8: the detector in the gas chromatograph converts the change of the concentration or quality of the gas to be measured into electric signal, and the electric signal is amplified and displayed on the computer in different timeSignal peaks with different heights are chromatographic outflow curves; performing qualitative analysis according to retention time of each peak obtained on the chromatogram outflow curve, and performing quantitative analysis according to peak area or peak height; obtaining the relative molecular mass and molecular structure of the gas to be detected by the mass spectrogram output by the mass spectrometer, and determining C5F10Chemical structure of decomposition products in the O decomposition process;
the peak displayed at each time point in the chromatographic outflow curve represents a fixed gas component, the height of the signal peak represents the content of the gas component, the data of each signal peak is exported, the content of each component can be obtained by a component quantitative analysis method, and the decomposition condition of the gas in the tank body is further analyzed; the component quantitative analysis method is shown in a formula:
mi＝fi·Ai
wherein mi is the amount of the i component; fi is a correction factor for the i component; ai is the peak area of the i component;
and step 9: repeating the steps 4-8 again, recording the decomposition product data, comparing the change conditions of the contents of the gas components, and judging the change conditions of the contents of the components of the decomposition products in the tank body under the influence of the discharge times and the discharge energy to realize the C-pair5F10And detecting the decomposition component of the O gas discharge.
The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the utility model in the embodiments of the present disclosure is not limited to the specific combinations of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present disclosure. For example, the above features and (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure are mutually replaced to form the technical solution.

Claims (3)

1. For detecting C5F10The device for decomposing the components by O gas discharge is characterized by comprising a gas decomposition module and a gas detectorA measuring module;
the gas decomposition module comprises an alternating current power supply, a voltage regulator, a transformer, a resistor, a rectifier diode, a capacitor, a waste gas recovery device and an experimental gas tank; the alternating current power supply is connected with the voltage regulator and the primary side of the transformer, the positive pole of the secondary side of the transformer is respectively connected with the resistor, the rectifier diode, the positive pole of the capacitor and the positive pole of the experimental gas tank, and the negative pole of the secondary side of the transformer is connected with the negative pole of the capacitor and the negative pole of the experimental gas tank and is connected to the ground; the waste gas recovery device is connected with an exhaust port of the experimental gas tank;
the gas detection module includes: helium tank, six-way valve, sample vacuum gas collecting bag, gas chromatography-mass spectrometer, computer; the helium tank is connected with a carrier gas port of the six-way valve, a gas inlet of the six-way valve is connected with the sample vacuum gas collection bag, and a gas collection port of the six-way valve is connected with the vacuum gas collection bag; one end of the gas chromatography-mass spectrometer is connected with the six-way valve for air inlet, and the other end of the gas chromatography-mass spectrometer is connected with the computer.
2. A method for detecting C according to claim 15F10An apparatus for decomposing a component by discharging O gas, characterized in that the experimental gas tank comprises: barometer, sealed tank, ball electrode, micro-water device, micro-oxygen device, filtering and drying device, C5F10An O gas cylinder; the micro-water device comprises a water tank, a micro-water device valve and a needle tube; the micro-oxygen device comprises an oxygen tank valve and an oxygen bottle; the filtering and drying device comprises a filter screen and a molecular sieve, a pair of ball electrodes are arranged in the sealed tank body, and the outside of the sealed tank body is respectively connected with a barometer, a micro-water device, a micro-oxygen device and a C5F10An O gas cylinder; wherein the needle tube in the micro-water device is connected with the closed tank body, the other end of the needle tube is connected with the micro-water device valve, the other end of the micro-water device valve is connected with the water tank, the oxygen cylinder in the micro-oxygen device is connected with the oxygen cylinder valve, the other end of the oxygen cylinder valve is connected with the filtering and drying device, one end of the filtering and drying device is connected with the experimental gas tank, and the other end of the filtering and drying device is respectively connected with the oxygen cylinder and the C5F10And an O gas cylinder.
3. A method for detecting C according to claim 15F10The device for decomposing the components by O gas discharge is characterized in that the gas chromatograph-mass spectrometer comprises a gas chromatograph, a mass spectrometer and a detector, wherein the gas chromatograph is connected with an EI ion source of the mass spectrometer, and the detector is positioned inside the chromatograph and is a detection unit of the gas chromatograph.
CN202123085885.4U 2021-12-09 2021-12-09 For detecting C5F10Device for decomposing components by O gas discharge Active CN216696192U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123085885.4U CN216696192U (en) 2021-12-09 2021-12-09 For detecting C5F10Device for decomposing components by O gas discharge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123085885.4U CN216696192U (en) 2021-12-09 2021-12-09 For detecting C5F10Device for decomposing components by O gas discharge

Publications (1)

Publication Number Publication Date
CN216696192U true CN216696192U (en) 2022-06-07

Family

ID=81837240

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123085885.4U Active CN216696192U (en) 2021-12-09 2021-12-09 For detecting C5F10Device for decomposing components by O gas discharge

Country Status (1)

Country Link
CN (1) CN216696192U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114034803A (en) * 2021-12-09 2022-02-11 沈阳工业大学 For detecting C5F10Device and method for decomposing component by discharging O gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114034803A (en) * 2021-12-09 2022-02-11 沈阳工业大学 For detecting C5F10Device and method for decomposing component by discharging O gas
CN114034803B (en) * 2021-12-09 2023-11-21 沈阳工业大学 Be used for detecting C 5 F 10 Device and method for decomposing components by O gas discharge

Similar Documents

Publication Publication Date Title
CN101629936B (en) Pulse helium ionized gas phase chromatographic instrument
CN107561151B (en) Quick pesticide residue detector based on mass spectrometry technology
CN110108813B (en) Device and method for detecting mixed gas decomposition product of perfluoroisobutyronitrile and carbon dioxide
CN201319028Y (en) Portable sulphur hexafluoride gas chromatograph
CN216696192U (en) For detecting C5F10Device for decomposing components by O gas discharge
CN102928499B (en) Rapid analysis device and method for ambient air volatile organic compounds
US20190107517A1 (en) Refilling-type online chromatographic detector for sulphur hexafluoride decomposition products
CN101713761A (en) Sampling device used for analyzing polyaromatic hydrocarbon samples at real time in on-line mass spectrum
CN103344735A (en) Method for positioning discharging fault in gas insulated switchgear (GIS)
CN105572250A (en) Gas chromatographic detection system and method for analyzing hydrogen isotopes and trace impurity components in He
CN103048394B (en) System and method for detecting trace hydrogen isotopes in natural gas
CN105717092B (en) A kind of DBD excitaton sources, DBD-AES systems and its determination method
CN102998152A (en) Device for collecting light hydrocarbon component in rock sample
CN210071754U (en) Detection C4F7N and CO2Device for mixing decomposition products of gas
CN102033103A (en) Mercury morphological analysis method based on liquid cathode discharge and mercury vapor generating device
CN106990099A (en) One kind detection SF6The device and method of mixed gas composition
CN201514403U (en) Helium photoionization gas chromatography detector
Grimsrud et al. Measurement of ions within a pulsed electron capture detector by mass spectrometry
CN106370764B (en) A kind of recharging type sulfur hexafluoride decomposition product chromatography on-line detector
CN111257473A (en) Non-methane total hydrocarbon on-line detection device
CN114034803B (en) Be used for detecting C 5 F 10 Device and method for decomposing components by O gas discharge
CN108489968A (en) A kind of method of easy detection dithiocarbamates pesticide
CN215375255U (en) Gas decomposition product component detection system
CN115598108A (en) Real-time analysis device and system under electric core working condition
CN111413438B (en) Device and method for detecting battery formation gas

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant