CN209460222U - The portable detector of environmentally friendly mix insulation gas purity - Google Patents
The portable detector of environmentally friendly mix insulation gas purity Download PDFInfo
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- CN209460222U CN209460222U CN201822077378.8U CN201822077378U CN209460222U CN 209460222 U CN209460222 U CN 209460222U CN 201822077378 U CN201822077378 U CN 201822077378U CN 209460222 U CN209460222 U CN 209460222U
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- 238000009413 insulation Methods 0.000 title abstract description 5
- 238000001514 detection method Methods 0.000 claims abstract description 113
- 239000004065 semiconductor Substances 0.000 claims abstract description 42
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 37
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 238000004321 preservation Methods 0.000 claims description 17
- 238000005057 refrigeration Methods 0.000 claims description 17
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 13
- 238000000746 purification Methods 0.000 claims description 13
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 230000007613 environmental effect Effects 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 110
- 229910018503 SF6 Inorganic materials 0.000 description 55
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 49
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 6
- 231100000331 toxic Toxicity 0.000 description 6
- 230000002588 toxic effect Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
The utility model provides a kind of portable detector of environmentally friendly mix insulation gas purity, including intake valve, flow control valve, flow detection module, O2Detection module, SF6/N2Detection module, core control system, power module, semiconductor temperature-control module and air outlet valve；The intake valve, the flow control valve, the flow detection module, the O2Detection module, the SF6/N2Detection module and the air outlet valve are sequentially connected by testing pipeline；The O2Detection module, the SF6/N2Detection module is located in the semiconductor temperature-control module；The core control system is separately connected the flow detection module and the semiconductor temperature-control module.The utility model can accurately measure SF6/N2O in mix insulation gas2、SF6、N2Purity content.
Description
Technical Field
The utility model relates to a mist's analysis and detection control technical field, in particular to can accurate measurement SF6/N2O in mixed insulating gas2、SF6、N2Portable content detecting and analyzing device.
Background
SF6SF is widely used in high-voltage power equipment due to its characteristics of stability and excellent insulating property6The gas has the defects of low-temperature liquefaction and over-strong greenhouse effect, so that the search for an environment-friendly excellent insulating substitute medium is particularly urgent. And SF6/N2The mixed insulating gas is generally regarded as the most effective in the short termSF with promising future6Alternative media, currently containing small amounts of SF6SF of gas6/N2The mixed insulating gas has been successfully applied to equipment such as gas-insulated transformers and gas-insulated pipes.
Existing SF6/N2The mixed insulating gas electrical equipment is short of detection technology, and SF6/N2The content mixing proportion of the mixed insulating gas is used as an important index for evaluating the state of the electrical equipment, and the insulating and arc extinguishing performance of the equipment is directly influenced.
The utility model discloses at 20170426, chinese utility model publication No. CN106595761A discloses a system for detecting decomposition products of sulfur hexafluoride and nitrogen mixed gas, which comprises a main control unit, a display unit, an air inlet pipeline, an air outlet pipeline, and a first detection air channel and a second detection air channel which are arranged in parallel, wherein the air inlet of the air inlet pipeline is provided with an air inlet pipe joint with a flow regulating valve, the air inlets of the first detection air channel and the second detection air channel are connected with the air outlet of the air inlet pipeline, and the air outlets of the first detection air channel and the second detection air channel are connected with the air inlet of the air outlet pipeline; the first detection gas path is provided with a decomposition product and temperature sensing unit and a flow sensing unit, and the second detection gas path is provided with a purity sensing unit and a pressure sensing unit. The utility model aims at detecting the content of each component of the decomposition product gas in the mixed gas, containing the contents of each component of the decomposition product gas in the mixed gas by the embedded algorithm such as de-crossing, flow compensation and temperature compensation. However, the detection gas circuit is two paths, and each path is provided with a plurality of sensors, so that the structure becomes complicated, the miniaturization is not facilitated, and the carrying is not good. And the tail gas is not purified and is directly discharged, so that the environment is not polluted.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in providing a portable detection device and detection method of mixed insulating gas purity of environmental protection, can accurate measurement SF6/N2O in mixed insulating gas2、SF6、N2Purity content, no influence of on-site extreme high and low temperature environment on test result, and portabilityThe detection device has simple structure, is beneficial to miniaturization, and the detection method is simple and convenient to operate.
The utility model discloses a portable detection device is realized like this: a portable detection device for the purity of environment-friendly mixed insulating gas comprises an air inlet valve, a flow regulating valve, a flow detection module and an O2Detection module, SF6/N2The device comprises a detection module, a core control system, a power supply module, a semiconductor temperature control module and an air outlet valve; the air inlet valve, the flow regulating valve, the flow detection module and the valve2Detection module, said SF6/N2The detection module and the gas outlet valve are sequentially connected through a test pipeline; said O is2Detection module, said SF6/N2The detection module is arranged in the semiconductor temperature control module; the core control system is respectively connected with the flow detection module and the semiconductor temperature control module; the power supply module is respectively connected with the core control system, the flow detection module and the O2Detection module, SF6/N2The detection module and the semiconductor temperature control module.
Further, the utility model discloses a portable detection device still includes the tail gas purification module, the tail gas purification module connect in SF6/N2The detection module and the air outlet valve.
Further, the tail gas purification module comprises a metal container and an alkaline filter unit, and the alkaline filter unit is arranged in the metal container.
Further, the flow detection module comprises a gas flow sensor and a first gas path chamber, and the gas flow sensor is arranged in the first gas path chamber;
said O is2The detection module comprises a zirconium oxide method O2A sensor and a second gas path chamber, the zirconium oxide method O2The sensor is arranged in the second air path cavity;
the SF6/N2The detection module comprises a thermal conductivity method SF6/N2A sensor and a third gas path chamber; said thermal conductivity method SF6/N2The sensor is arranged at the second partA third gas path chamber;
the semiconductor temperature control module comprises a semiconductor refrigeration piece, a temperature measuring element, a heat preservation container, a radiator and a temperature control circuit; the temperature measuring element is arranged in the heat preservation container, the working surface of the semiconductor refrigeration piece is attached to the heat preservation container, the heat dissipation surface of the semiconductor refrigeration piece is attached to the radiator, and the temperature control circuit is respectively connected with the temperature measuring element and the semiconductor refrigeration piece;
and the second air path chamber and the third air path chamber are both arranged in the heat-insulating container.
Furthermore, the core control system comprises an AD collector, a display controller and an ARM processor, and the AD collector and the display controller are both connected to the ARM processor; the AD collector is also connected with the gas flow sensor and the zirconium oxide method O2Sensor, said thermal conductivity method SF6/N2A sensor and the temperature measuring element.
Furthermore, the power module comprises a lithium battery, a voltage conversion circuit and a charge and discharge management circuit, wherein the lithium battery is connected with the voltage conversion circuit through the charge and discharge management circuit; the voltage conversion circuit is respectively connected with the gas flow sensor and the zirconium oxide method O2Sensor, said thermal conductivity method SF6/N2The temperature measuring device comprises a sensor, the semiconductor refrigeration piece, the temperature measuring element, the AD collector, the display controller and the ARM processor.
Further, the air inlet valve and the air outlet valve are both self-closing stainless steel gas valves;
the flow regulating valve is a stainless steel needle type regulating valve.
The utility model discloses a detection method realizes like this: the method for detecting the purity of the environment-friendly mixed insulating gas is characterized by comprising the following steps of: utilize the utility model discloses the portable detection device of foretell environmental protection mixed insulating gas purity to following step is carried out:
s1, turning on the power supply of the portable detection device, controlling the semiconductor temperature control module by the core control system to detect the environmental temperature of the heat preservation container, andaccording to the detection result to the O2Second gas path chamber and SF of detection module6/N2Heating or refrigerating a third gas circuit chamber of the detection module, and finally keeping the temperature of the second gas circuit chamber constant at 25 ℃ and the temperature of the third gas circuit chamber constant at 55 ℃;
s2, switching the flow regulating valve from an initial closed state to a conducting state, and regulating the test flow to 200-300 ml/min;
s3, the tested gas flows into the O in turn through the test pipeline2Detection module and said SF6/N2Detection module for real-time detection of O in gas2、SF6、N2Content, and converting the content into an electric signal to be transmitted to the core control system;
s4, when the core control system identifies O2、SF6、N2The electric signal is matched with a built-in algorithm for calculation to finally obtain O2、SF6、N2The exact content value of (a); the algorithm specifically comprises the following steps:
placing the device in a standard room temperature environment, and sequentially introducing SF with the concentration of 0-1%6O as bottom gas2Sample gas, 0-100% of N2SF as bottom gas6Sample gas, 0-100% SF6N as bottom gas2The sample gas to the detection device can read the voltage signal value output by each concentration point from the display module, and a functional relation between the sample gas concentration value Y and the output voltage signal value U can be obtained by using a least square normal fitting method: y ═ f (U) ═ k ═ U + b;
and S5, enabling the detected gas to flow through the tail gas purification module, absorbing toxic and harmful gas components in the detected gas by the tail gas purification module, and then discharging the toxic and harmful gas components into the air.
The utility model has the advantages of as follows: the utility model adopts the international advanced zirconia method O2Sensor, thermal conductivity method SF6/N2The sensor and the semiconductor refrigerating sheet with low power consumption and small volume create a micro excellent constant-temperature and heat-insulation test environment, so that the device can accurately measure SF under the influence of extreme high-temperature and low-temperature environments6/N2O in mixed insulating gas2、SF6、N2Content (c); the tail gas purification module is used for purifying toxic and harmful gas components in the tail gas, so that the tail gas is prevented from being directly discharged into the atmosphere, the environment is prevented from being polluted, and the personal safety of detection personnel is prevented from being harmed; the utility model discloses whole device adopts the totally enclosed design, has avoided revealing and the air introduction pipeline of gas in the testing process to shorten O2Sensor service life and zero drift problems; and the detection device has simple structure, is beneficial to miniaturization, and is convenient to carry and operate.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the principle structure of the portable detecting device of the present invention.
Fig. 2 is the schematic structural diagram of the semiconductor temperature control module in the portable detection device of the present invention.
Fig. 3 is a schematic diagram of the core control system in the portable detection device of the present invention.
Fig. 4 is a schematic diagram of the principle structure of the power module in the portable detecting device of the present invention.
Detailed Description
Referring to fig. 1 to 4, the portable detecting device of the present invention includes an air inlet valve 1, a flow regulating valve 2, a flow detecting module 3, and an O2Detection module 4, SF6/N2The device comprises a detection module 5, a core control system 6, a power supply module 7, a semiconductor temperature control module 8 and an air outlet valve 9; the air inlet valve 1, the flow regulating valve 2, the flow detection module 3 and the valve O2Detection module 4, SF6/N2The detection module 5 and the air outlet valve 9 are sequentially connected through a test pipeline 10; said O is2Detection module 4, SF6/N2The detection module 5 is arranged in the semiconductor temperature control module 8; the core control system 6 is respectively connected with the flow detection module 3 and the semiconductor temperature control module 8; the power supply module 7 is respectively connected with the core control system 6, the flow detection module 3 and the O2Detection module 4, SF6/N2A detection module 5 and the semiconductor temperature control module 8.
Wherein,
the air inlet valve 1 is a self-closing stainless steel gas valve.
The flow regulating valve 2 is a stainless steel needle type regulating valve and is used for manually regulating the gas flow.
The flow detection module 3 comprises a gas flow sensor 31 and a first gas path chamber 32, wherein the gas flow sensor 31 is arranged in the first gas path chamber 32 and is used for detecting the flow of passing gas;
said O is2The detection module 4 comprises a zirconium oxide method O2A sensor 41 and a second gas path chamber 42, the zirconium oxide method O2A sensor 41 is disposed in the second gas path chamber 42 for detecting O in the passing gas2Content (c);
the SF6/N2The detection module 5 comprises a thermal conductivity method SF6/N2A sensor 51 and a third airway chamber 52; said thermal conductivity method SF6/N2A sensor 51 is provided in the third gas path chamber 52 for detecting SF in the passing gas6、N2Content (c);
as shown in fig. 2, the semiconductor temperature control module 8 includes a semiconductor cooling plate 81, a temperature measuring element 82, a heat preservation container 83, a heat sink 84 and a temperature control circuit 85; the temperature measuring element 82 is arranged in the heat preservation container 83 and used for collecting the temperature in the heat preservation container in real time, the working surface (front surface) of the semiconductor refrigeration piece 81 is attached to the heat preservation container 83 and used for heating or refrigerating the heat preservation container, the heat dissipation surface (back surface) of the semiconductor refrigeration piece 81 is attached to the radiator 84, heat generated by the work of the semiconductor refrigeration piece is discharged through the radiator, and the temperature control circuit 85 is connected with the semiconductor refrigeration piece 81 and the temperature measuring element 82 and used for controlling the temperature of the whole heat preservation container; the heat-insulating container 83 is O2Detection module 4 the SF6/N2The detection module 5 provides a closed constant temperature environment, the semiconductor refrigeration sheet 81 is used for refrigerating or heating the heat preservation container 83 (determined by the ambient temperature), and the temperature measurement element 82 is used for detecting the heat preservation containerThe temperature in the container 83, the radiator 84 is used for radiating heat generated by the operation of the semiconductor refrigeration sheet 81, and the temperature control circuit 85 is used for controlling the temperature of the whole heat-insulating container 83;
the second air path chamber 42 and the third air path chamber 52 are both arranged in the heat preservation container 83.
As shown in fig. 3, the core control system 6 includes an AD collector 61, a display controller 62 and an ARM processor 63, and the AD collector 61 and the display controller 62 are both connected to the ARM processor 63; the AD collector 61 is also connected with the gas flow sensor 31 and the zirconium oxide method O2Sensor 41, the thermal conductivity method SF6/N2A sensor 51 and the temperature sensing element 82. The AD collector 61 is used for collecting the gas flow sensor 31 and the zirconium oxide method O2Sensor 41, thermal conductivity method SF6/N2The electric signals of the sensor 51 and the temperature measuring element 82 are amplified and conditioned; the display controller 62 is used for displaying the device temperature value collected by the temperature measuring element 82, the flow value collected by the gas flow sensor 31 and the SF in real time6/N2Sensor 51, zirconium oxide method O2O collected at sensor 412、SF6、N2A content value; the ARM processor 63 is used for controlling the operation and the operation of the whole detection device;
as shown in fig. 4, the power module 7 includes a lithium battery 71 (for example, a 14.8V/5.5AH lithium battery), a voltage conversion circuit 72, and a charge and discharge management circuit 73, wherein the lithium battery 71 is connected to the voltage conversion circuit 72 through the charge and discharge management circuit 73; the voltage conversion circuit 72 is connected to the gas flow sensor 31 and the zirconia method O, respectively2Sensor 41, the thermal conductivity method SF6/N2The sensor 51, the semiconductor refrigeration piece 81, the temperature measuring element 82, the AD collector 61, the display controller 62 and the ARM processor 63 are used for providing a flow detection module and an O2Detection module, SF6/N2The detection module, the semiconductor temperature control module and the core control system supply power.
The air inlet valve 1 and the air outlet valve 9 are both self-closing stainless steel gas valves;
the utility model discloses a portable detection device still includes tail gas purification module 11, tail gas purification module 11 connect in SF6/N2Between the detection module 5 and said outlet valve 9. The exhaust gas purification module 11 includes a metal container 111 and an alkaline filter unit 112, and the alkaline filter unit 112 is disposed in the metal container 111 and is capable of filtering acidic harmful gas components in the exhaust gas.
The utility model discloses a portable detection device detection process of mixed insulating gas purity of environmental protection as follows:
s1, turning on the power supply of the portable detection device, the core control system 6 controlling the semiconductor temperature control module 8 to detect the environmental temperature of the heat preservation container 83, and according to the detection result, determining the O2Second gas circuit chamber 42 and SF of detection module 46/N2Heating or refrigerating a third air path cavity 52 of the detection module 5, and finally keeping the temperature of the second air path cavity 42 constant at 25 ℃ and the temperature of the third air path cavity 52 constant at 55 ℃;
s2, switching the flow regulating valve 2 from an initial closed state to a conducting state, and regulating the test flow to 200-300 ml/min;
s3, the tested gas flows into the O in turn through the test pipeline 102Detection module 4 and said SF6/N2A detection module 5 for detecting O in gas in real time2、SF6、N2The content is converted into an electric signal and transmitted to the core control system 6;
s4, when the core control system 6 identifies O2、SF6、N2The electric signal is matched with a built-in algorithm for calculation to finally obtain O2、SF6、N2The exact content value of (a); the algorithm specifically comprises the following steps:
placing the device in a standard room temperature environment, and sequentially introducing SF with the concentration of 0-1%6O as bottom gas2Sample gas, 0-100% of N2SF as bottom gas6Sample gas, 0-100% SF6N as bottom gas2The sample gas is supplied to the detecting device and can be supplied from the display moduleReading the voltage signal value output by each concentration point, and obtaining a functional relation of the sample gas concentration value Y and the output voltage signal value U by using a least square normal fitting method: y ═ f (U) ═ k ═ U + b;
for example, if the display module can read the corresponding relationship between the voltage signal value output by each concentration point and the sample gas concentration value, the relationship is shown in the following table:
then, by linear fitting, respectively, one can derive:
o2 concentration value function: y isO2＝0.0029UO2-5.9508；
SF6 concentration value function: y isSF6＝0.0403USF6-13.5049；
N2 concentration value function: y isN2＝0.0279UN2+12.6284。
And S5, enabling the detected gas to flow through the tail gas purification module, absorbing toxic and harmful gas components in the detected gas by the tail gas purification module, and then discharging the toxic and harmful gas components into the air.
The utility model discloses can accurate measurement SF6/N2O in mixed insulating gas2、SF6、N2The instrument device of the purity content solves the problem of the prior pure SF6The gas detection mode cannot accurately measure SF6/N2O in mixed insulating gas2、SF6、N2Content and test results are influenced by the extremely high and low temperature environment in the field. The utility model adopts the international advanced zirconia method O2Sensor, thermal conductivity method SF6/N2The sensor and the semiconductor refrigerating sheet with low power consumption and small volume create a micro excellent constant-temperature and heat-insulation test environment, so that the device can accurately measure SF under the influence of extreme high-temperature and low-temperature environments6/N2O in mixed insulating gas2、SF6、N2Content (c); the tail gas purification module purifies toxic and harmful gas components in the tail gas, thereby avoiding the tail gas from being directly discharged into the atmosphere,the environment is polluted and the personal safety of detection personnel is damaged; the utility model discloses whole device adopts the totally enclosed design, has avoided revealing and the air introduction pipeline of gas in the testing process to shorten O2Sensor service life and zero drift problems; and the detection device has simple structure, is beneficial to miniaturization, and is convenient to carry and operate.
Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (7)
1. The utility model provides a portable detection device of insulating gas purity is mixed in environmental protection which characterized in that: comprises an air inlet valve, a flow regulating valve, a flow detection module and an O2Detection module, SF6/N2The device comprises a detection module, a core control system, a power supply module, a semiconductor temperature control module and an air outlet valve; the air inlet valve, the flow regulating valve, the flow detection module and the valve2Detection module, said SF6/N2The detection module and the gas outlet valve are sequentially connected through a test pipeline; said O is2Detection module, said SF6/N2The detection module is arranged in the semiconductor temperature control module; the core control system is respectively connected with the flow detection module and the semiconductor temperature control module; the power supply module is respectively connected with the core control system, the flow detection module and the O2Detection module, SF6/N2The detection module and the semiconductor temperature control module.
2. The portable environment-friendly mixed insulating gas purity detection device according to claim 1, wherein: still include the tail gas clean-up module, the tail gas clean-up module connect in SF6/N2Detection module and air outlet valveIn the meantime.
3. The portable environment-friendly mixed insulating gas purity detection device according to claim 2, wherein: the tail gas purification module comprises a metal container and an alkaline filtering unit, and the alkaline filtering unit is arranged in the metal container.
4. The portable environment-friendly mixed insulating gas purity detection device according to claim 1, wherein: the flow detection module comprises a gas flow sensor and a first gas path cavity, and the gas flow sensor is arranged in the first gas path cavity;
said O is2The detection module comprises a zirconium oxide method O2A sensor and a second gas path chamber, the zirconium oxide method O2The sensor is arranged in the second air path cavity;
the SF6/N2The detection module comprises a thermal conductivity method SF6/N2A sensor and a third gas path chamber; said thermal conductivity method SF6/N2The sensor is arranged in the third gas path cavity;
the semiconductor temperature control module comprises a semiconductor refrigeration piece, a temperature measuring element, a heat preservation container, a radiator and a temperature control circuit; the temperature measuring element is arranged in the heat preservation container, the working surface of the semiconductor refrigeration piece is attached to the heat preservation container, the heat dissipation surface of the semiconductor refrigeration piece is attached to the radiator, and the temperature control circuit is respectively connected with the temperature measuring element and the semiconductor refrigeration piece;
and the second air path chamber and the third air path chamber are both arranged in the heat-insulating container.
5. The portable environment-friendly mixed insulating gas purity detection device according to claim 4, wherein: the core control system comprises an AD collector, a display controller and an ARM processor, wherein the AD collector and the display controller are connected to the ARM processor; the AD collector is also connected with the gas flow sensor and the zirconium oxide method O2Sensor, said thermal conductivity method SF6/N2A sensor and the temperature measuring element.
6. The portable environment-friendly mixed insulating gas purity detection device according to claim 5, wherein: the power module comprises a lithium battery, a voltage conversion circuit and a charge and discharge management circuit, wherein the lithium battery is connected with the voltage conversion circuit through the charge and discharge management circuit; the voltage conversion circuit is respectively connected with the gas flow sensor and the zirconium oxide method O2Sensor, said thermal conductivity method SF6/N2The temperature measuring device comprises a sensor, the semiconductor refrigeration piece, the temperature measuring element, the AD collector, the display controller and the ARM processor.
7. The portable environment-friendly mixed insulating gas purity detection device according to claim 1, wherein:
the air inlet valve and the air outlet valve are both self-closing stainless steel gas valves;
the flow regulating valve is a stainless steel needle type regulating valve.
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| CN201822077378.8U CN209460222U (en) | 2018-12-11 | 2018-12-11 | The portable detector of environmentally friendly mix insulation gas purity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444341A (en) * | 2018-12-11 | 2019-03-08 | 福建亿榕信息技术有限公司 | The portable detector and detection method of environmentally friendly mix insulation gas purity |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444341A (en) * | 2018-12-11 | 2019-03-08 | 福建亿榕信息技术有限公司 | The portable detector and detection method of environmentally friendly mix insulation gas purity |
| CN109444341B (en) * | 2018-12-11 | 2024-01-30 | 福建亿榕信息技术有限公司 | Portable detection device and detection method for purity of environment-friendly mixed insulating gas |
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