CN215678087U - SO (SO)2F2Infrared absorption characteristic test system - Google Patents
SO (SO)2F2Infrared absorption characteristic test system Download PDFInfo
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- CN215678087U CN215678087U CN202121887412.3U CN202121887412U CN215678087U CN 215678087 U CN215678087 U CN 215678087U CN 202121887412 U CN202121887412 U CN 202121887412U CN 215678087 U CN215678087 U CN 215678087U
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- optical path
- absorption characteristic
- infrared absorption
- test system
- adjusting device
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 18
- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 21
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000001228 spectrum Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 24
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 14
- 229910018503 SF6 Inorganic materials 0.000 description 8
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 6
- 229960000909 sulfur hexafluoride Drugs 0.000 description 6
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- OBTWBSRJZRCYQV-UHFFFAOYSA-N sulfuryl difluoride Chemical compound FS(F)(=O)=O OBTWBSRJZRCYQV-UHFFFAOYSA-N 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- -1 fluorine ions Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004566 IR spectroscopy Methods 0.000 description 1
- 239000005935 Sulfuryl fluoride Substances 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001506 fluorescence spectroscopy Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to the technical field of electricity, in particular to a SO2F2The infrared absorption characteristic testing system comprises an optical path pool and a spectrometer, wherein the optical path pool is connected with the spectrometer, an air inlet port is formed in the optical path pool, the heating temperature is adjusted in the optical path pool through a temperature adjusting device, and the pressure is adjusted in the optical path pool through a pressure adjusting device. Aims at treating SO at different temperatures and pressures2F2Of gasesThe infrared optical characteristics are explored to obtain test data under different conditions, namely SF in a GIS gas chamber6Infrared optical detection of the decomposition products provides a theoretical reference.
Description
Technical Field
The utility model belongs to the technical field of electricity, and particularly relates to SO2F2Infrared absorption characteristic test system.
Background
Sulfur hexafluoride (SF)6) The inert Gas is odorless, colorless and nontoxic, and is widely applied to Gas insulated fully-closed Switchgear (GIS) due to excellent insulation and arc extinguishing performances. Compared with conventional power transmission equipment, the GIS equipment has the advantages of small floor area, short construction period, long maintenance period, small influence of external environment, high operation reliability and the like, however, insulation defects such as mounting scratches, fixing protrusions, metal powder residues and the like left in the manufacturing and mounting process can cause Partial Discharge (PD) phenomenon inside the GIS equipment, and insulation degradation is accelerated to further cause equipment failure. Under the action of partial discharge, spark discharge, etc. fault, SF6The chemical bond of the molecule may be broken to form SF2、SF3And SF4The nitrogen and fluorine ions react with impurities such as solid insulating medium, electrode material, air and moisture in gas to generate different types of compounds, such as H2S、SO2And SO2F2. Because GIS equipment inner structure is compact complicated, it is comparatively difficult to overhaul to it after breaking down. Therefore, it is important to identify early signs of latent failure, SO2F2As SF6Important characteristic components generated by decomposition under the action of partial discharge can be analyzed and detected to provide a basis for the evaluation of the insulation state of the GIS equipment, so that greater economic loss caused by faults is avoided, and the life safety of workers is guaranteed.
For SO2F2At present, gas chromatography, mass spectrometry, infrared absorption spectrometry and the like are mostly adopted at home and abroad for analysis and detection of gas, and SO is treated2F2The infrared optical detection of (2) has not been explored aiming at the influence rule of temperature and pressure.
Disclosure of Invention
The utility model aims at SO under different temperatures and pressures2F2The infrared absorption characteristic of the gas is researched, and SO is provided2F2The system can test SO under different temperatures and pressures through the temperature and pressure adjustable optical path pool and the Fourier transform infrared spectrophotometer2F2The infrared optical characteristics of the gas are explored, test data under different conditions can be obtained, and the test data is SF in a GIS gas chamber6Infrared optical detection of the decomposition products provides a theoretical reference.
The technical scheme adopted by the utility model is as follows: SO (SO)2F2The infrared absorption characteristic testing system comprises an optical path pool and a spectrometer, wherein the optical path pool is connected with the spectrometer, an air inlet port is formed in the optical path pool, the heating temperature is adjusted in the optical path pool through a temperature adjusting device, and the pressure is adjusted in the optical path pool through a pressure adjusting device.
Preferably, the temperature adjusting device comprises a sleeve outside the optical path cell, the sleeve is connected with a heater, and the heater provides different heating temperatures for the sleeve.
Preferably, the heater is an alternating current temperature controller, and the alternating current temperature controller can provide heating temperature for the sleeve in a range of 298-348K.
Preferably, the pressure adjusting device comprises a vacuum pump, the vacuum pump is connected with the optical path pool through a pipeline, and a pressure gauge is connected to the pipeline.
Preferably, the air inlet port is respectively connected with a nitrogen storage bottle and the SO2F2A nitrogen gas mixture storage bottle connection.
Preferably, the spectrometer is in remote communication connection with a computer control terminal, and the computer control terminal can control the working state of the spectrometer and analyze and record data.
The utility model has the advantages that: the optical path pool is provided with a temperature adjusting device and a pressure adjusting device, and different temperatures in the optical path pool can be adjusted through the temperature adjusting device and the pressure adjusting deviceThe degree and the pressure intensity of the gas in the optical path pool are ensured to test the infrared absorption characteristic of the gas under different environmental conditions, and the gas is SF in a GIS gas chamber6Infrared optical detection of the decomposition products provides a theoretical reference.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
In the figure: 1-an optical path pool; 2-a spectrometer; 3-alternating current temperature controller; 4-a vacuum pump; 5-a pressure gauge; 6-an air inlet port; 7-a nitrogen storage bottle; 8-SO2F2-a nitrogen gas mixture storage bottle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Sulfuryl fluoride (SO)2F2) Sulfur hexafluoride (SF) gas chamber of gas insulated totally-enclosed combined electrical appliance (GIS)6) And the characteristic components of the decomposition products are detected and analyzed, so that early latent fault recognition of the GIS equipment can be realized. Constructing a Fourier transform infrared absorption spectrometer (FTIR) system with adjustable temperature and pressure of an optical path cell, and carrying out SO (sulfur dioxide) pair by using absorption spectral line parameters obtained by FTIR experiments and a HITRAN (heterojunction with intrinsic fluorescence Spectroscopy) database2F2Analyzing infrared absorption spectrum line and cross interference characteristic of gas, selecting center wavelength 2763cm-1Position as SO2F2Characteristic absorption peak of gas and for SO2F2The infrared absorption characteristics affected by temperature and pressure in the vicinity of the position of this band were investigated.
As shown in FIG. 1, a SO2F2Infrared absorption characteristic test system, including optical path pond 1 and spectrum appearance 2, optical path pond 1 and spectrum appearance 2 are connected, and spectrum appearance 2 can be analyzed information such as the gas composition in optical path pond 1, be provided with inlet port 6 on the optical path pond 1, inlet port 6 is connected with the filling pipeline of the gaseous of examination of awaiting measuring, can fill the gas that needs the analysis through inlet port 6 and fill the pipeline connectionThe method comprises the following steps of entering an optical path pool 1, adjusting the temperature in the optical path pool 1 through a temperature adjusting device, and adjusting the pressure in the optical path pool 1 through a pressure adjusting device.
The temperature adjusting device comprises a sleeve outside the optical path pool 1, the sleeve is connected with a heater, and the heater provides different heating temperatures for the sleeve. By heating with the heater, different heating temperatures can be provided for the sleeve, so that the infrared absorption characteristics of the gas in the optical path cell 1 at different temperatures can be tested.
The heater in the embodiment is preferably an alternating current temperature controller 3, the alternating current temperature controller 3 realizes different heating temperatures by changing the current on the resistance wire, and the heating temperature range provided by the alternating current temperature controller 3 for the sleeve is preferably 298-348K in the embodiment, so that the characteristic of the gas in the range of 298-348K is tested.
The pressure adjusting device comprises a vacuum pump 4, the vacuum pump 4 is connected with the optical path pool 1 through a pipeline, when the gas in the optical path pool 1 needs to be tested at different pressures, the gas pressure in the optical path pool 1 stays at different pressure values through vacuumizing and pressurizing of the vacuum pump 4, a pressure gauge 5 is connected onto the pipeline, the pressure gauge 5 in the embodiment is preferably an HG808-XB type digital pressure gauge, through vacuumizing processing of the vacuum pump 4, an operator can visually read out the current pressure value from the pressure gauge 5, and therefore the pressure in the optical path pool 1 stays at the required pressure.
The optical path cell 1 of the present invention may be filled with a gas to be tested, and in this embodiment, it is preferable to fill the optical path cell 1 with nitrogen and SO2F2A nitrogen gas mixture, said inlet port 6 being connected to a nitrogen gas storage bottle 7 and to the SO, respectively2F2A nitrogen gas mixture storage bottle 8, a nitrogen gas storage bottle 7 and SO2F2The nitrogen mixed gas storage bottles 8 may be filled separately or together when filling the gas into the optical path cell 1.
The spectrometer 2 is in remote communication connection with a computer control terminal, and the computer control terminal can control the working state of the spectrometer 2 and analyze and record data.
The specific working mode is as follows: firstly, an alternating-current temperature controller 3 is used for heating an optical path pool 1, the vacuumizing pressure of a vacuum pump 4 is adjusted at the same time, the vacuum pump 4 starts to work, the pressure value on a pressure gauge 5 is observed until the set pressure value is reached, and the vacuum pump 4 is stopped. Then high-purity nitrogen and SO2F2Nitrogen gas mixture is injected into the optical path cell 1 and the measurement is started.
Meanwhile, the optical path cell 1 is effectively connected with the spectrometer 2, and the spectrometer 2 can be used for analyzing information such as gas components. Meanwhile, the computer terminal control system also controls the work flow of the spectrometer 2, and the information data is kept well smooth.
The above-mentioned embodiments are preferred embodiments, it should be noted that the above-mentioned preferred embodiments should not be considered as limitations to the utility model, and the scope of protection of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and these modifications and adaptations should be considered within the scope of the utility model.
Claims (6)
1. SO (SO)2F2Infrared absorption characteristic test system, including optical path pond (1) and spectrum appearance (2), optical path pond (1) and spectrum appearance (2) are connected, be provided with inlet port (6), its characterized in that on optical path pond (1): the heating temperature in the optical path pool (1) is adjusted through a temperature adjusting device, and the pressure in the optical path pool (1) is adjusted through a pressure adjusting device.
2. SO according to claim 12F2Infrared absorption characteristic test system, its characterized in that: the temperature adjusting device comprises a sleeve outside the optical path pool (1), the sleeve is connected with a heater, and the heater provides different heating temperatures for the sleeve.
3. SO according to claim 22F2Infrared absorption characteristic test system, its characterized in that: the heater is controlled by AC temperatureThe alternating current temperature controller (3) can provide heating temperature for the sleeve in the range of 298-348K.
4. SO according to any of claims 1-32F2Infrared absorption characteristic test system, its characterized in that: the pressure adjusting device comprises a vacuum pump (4), the vacuum pump (4) is connected with the optical path pool (1) through a pipeline, and a pressure gauge (5) is connected to the pipeline.
5. SO according to claim 12F2Infrared absorption characteristic test system, its characterized in that: the air inlet port (6) is respectively connected with a nitrogen storage bottle (7) and SO2F2-a nitrogen gas mixture storage bottle (8) is connected.
6. SO according to claim 12F2Infrared absorption characteristic test system, its characterized in that: the spectrometer (2) is in remote communication connection with the computer control terminal, and the computer control terminal can control the working state of the spectrometer (2) and analyze and record data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121887412.3U CN215678087U (en) | 2021-08-12 | 2021-08-12 | SO (SO)2F2Infrared absorption characteristic test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121887412.3U CN215678087U (en) | 2021-08-12 | 2021-08-12 | SO (SO)2F2Infrared absorption characteristic test system |
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| Publication Number | Publication Date |
|---|---|
| CN215678087U true CN215678087U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121887412.3U Active CN215678087U (en) | 2021-08-12 | 2021-08-12 | SO (SO)2F2Infrared absorption characteristic test system |
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| Country | Link |
|---|---|
| CN (1) | CN215678087U (en) |
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2021
- 2021-08-12 CN CN202121887412.3U patent/CN215678087U/en active Active
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