CN211347828U - SF (sulfur hexafluoride)6Mixed insulating gas test device - Google Patents
SF (sulfur hexafluoride)6Mixed insulating gas test device Download PDFInfo
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- CN211347828U CN211347828U CN201922343117.0U CN201922343117U CN211347828U CN 211347828 U CN211347828 U CN 211347828U CN 201922343117 U CN201922343117 U CN 201922343117U CN 211347828 U CN211347828 U CN 211347828U
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- 238000012360 testing method Methods 0.000 title claims abstract description 57
- 229910018503 SF6 Inorganic materials 0.000 title claims description 29
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims description 5
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims description 5
- 238000002156 mixing Methods 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 37
- 238000005057 refrigeration Methods 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000003463 adsorbent Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 7
- 238000000354 decomposition reaction Methods 0.000 abstract description 30
- 238000009792 diffusion process Methods 0.000 abstract description 13
- 238000011160 research Methods 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 151
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 11
- 238000001816 cooling Methods 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- 238000010998 test method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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Abstract
The utility model discloses a SF6The mixed insulating gas test device comprises a supporting platform, and a gas test system and a temperature control system which are fixed on the supporting platform, wherein the gas test system is connected with the temperature control system; the gas test system comprises a sealing tank, a temperature control pipeline, a vacuum meter and a plurality of sensors, wherein the sensors comprise a temperature sensor, a pressure sensor and a humidity sensor. The utility model has the advantages of, this test device has realized the research of the gaseous state influence of mixing insulating gas mixture, decomposition product diffusion at different temperatures, gas pressure and gaseous kind。
Description
Technical Field
The utility model relates to an electrical equipment insulation test technical field specifically is a SF6A mixed insulating gas test device.
Background
Gas insulation is one of the important insulation methods for electrical equipment, and the most widely used insulation gas at present is SF6The excellent insulating property of the sulfur hexafluoride can effectively reduce the volume of electrical equipment, lighten the weight of the equipment, reduce the occupied area of the equipment and prolong the overhaul period of the equipment.
SF in electrical equipment6Is dependent on the state of the gas, SF6The insulating property of the gas is in positive correlation with the pressure of the gas within a certain range, SF6The liquefaction temperature of the gas (when the gas pressure is 0.23 MPa) is-50.8 ℃, and the gas chamber SF of the common breaker6The pressure of the gas is 0.6MPa to 0.7MPa, and the corresponding liquefaction temperature is about minus 30 ℃, so that the extremely low temperature in winter in the northeast, Xinjiang, inner Mongolia, Qinghai-Tibet plateau and other areas of China can cause SF in the equipment6The gas liquefies, and the insulation performance of the equipment is reduced. At the same time, SF6An intense greenhouse gas with a greenhouse potential of about 23900 times that of CO2 with SF6The increasing amount of gas is bringing increasing attention to the society as it brings about the greenhouse effect. Using other gases such as N2, CF4, etc. with SF6Mixed to form SF6Mixed insulating gas to replace pure SF6Use in electrical apparatus for reducing SF6The amount of SF is reduced6The influence of gas on the environment is a hot spot of insulation gas research at present. However, the gas such as N2 or CF4 is mixed with SF6Mixed insulating gas formed by mixing the physical and chemical properties of the mixed gas with pure SF6The gases have significant differences which need to be studied extensively and thoroughly before they can be used in the plant.
Existing about SF6The devices for studying the performance of the mixed insulating gas are designed based on the electrical performance of the gas, and the emphasis is on studying the relationship between the type of equipment failure (discharge, heat generation, etc.) and the gas properties (such as gas pressure, mixed gas mixing ratio, etc.). However, these devices are not directed to SF6The research on the state parameters and the physical and chemical properties of the mixed insulating gas is specially designed, and the influence of factors such as temperature, pressure, gas types, gas leakage, adsorbents and the like on the processes such as the distribution state of the mixed gas, the diffusion process of decomposition products, the change of gas humidity, gas liquefaction and the like cannot be systematically and scientifically researched.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: the utility model provides a can simulate different temperature, gas pressure and gas type and to mix, the test device of the gas state influence of decomposition product diffusion to solve the problem that different temperature, gas pressure, gas type can't be studied to the gas state influence that mixes, decomposition product diffusion of mixed insulating gas in the current device.
In order to solve the technical problem, the utility model provides a following technical scheme:
SF (sulfur hexafluoride)6The mixed insulating gas test device comprises a supporting platform, and a gas test system and a temperature control system which are fixed on the supporting platform, wherein the gas test system is connected with the temperature control system.
The gas test system comprises a seal pot, a temperature control pipeline, a vacuum meter and a plurality of sensors, wherein the temperature control pipeline is arranged in the seal pot, and the inlet and the outlet of the temperature control pipeline are all connectedConnect temperature control system, be equipped with vacuum gauge and a plurality of sensor on the seal pot, still be equipped with a plurality of air inlets on the seal pot, be used for connecting evacuating device's first interface and a plurality of be used for connecting mixing ratio detector or SF6And the gas inlet, the first interface and the second interface are all arranged at different positions on the seal pot.
The sensor includes temperature sensor, pressure sensor and humidity transducer, temperature sensor, pressure sensor and humidity transducer all set up the different positions on the seal pot.
Preferably, temperature control system is including heating branch road, refrigeration branch road, circulating pump and control cabinet, it is parallelly connected with the refrigeration branch road to heat the branch road, the input and the temperature control pipeline entry intercommunication of branch road and refrigeration branch road heat, and the output passes through circulating pump and temperature control pipeline export intercommunication and forms the return circuit, it all connects the control cabinet to heat branch road, refrigeration branch road and circulating pump, the control cabinet is fixed in the supporting platform side.
Preferably, the heating branch comprises a first electromagnetic valve, a heating device and a second electromagnetic valve, the first electromagnetic valve, the heating device and the second electromagnetic valve are all connected with the console and are communicated through a pipeline in sequence, the input end of the first electromagnetic valve is connected with the inlet of the temperature control pipeline, and the output end of the second electromagnetic valve is connected with the circulating pump.
Preferably, the refrigeration branch comprises a third electromagnetic valve, a first-stage refrigeration device, a second-stage refrigeration device and a fourth electromagnetic valve, the third electromagnetic valve, the first-stage refrigeration device, the second-stage refrigeration device and the fourth electromagnetic valve are all connected with the console and are communicated through a pipeline in sequence, the input end of the third electromagnetic valve is connected with the inlet of the temperature control pipeline, and the output end of the fourth electromagnetic valve is connected with the circulating pump.
Preferably, the seal tank is further provided with a third interface for connecting a gas taking device.
Preferably, the bottom end of the seal tank is also provided with a liquid observation window for observing the liquefaction of the gas in the seal tank.
Preferably, an adsorbent window is further arranged on the sealing tank.
Preferably, the intelligent temperature control system further comprises an intelligent control system, wherein the intelligent control system is fixed on the support table on one side of the temperature control system, and the intelligent control system is connected with the sensor.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the research on the influence of different temperatures, gas pressures and gas types on the gas state of the mixed insulating gas and the diffusion of decomposition products is realized through a gas test system; the real-time temperature in the gas test system is controlled by the temperature control system, so that the temperature in the test process can be controlled and flexibly adjusted, temperature variables are provided for various simulations and researches, and the influence of the temperature on the test result is finally obtained.
2. By connecting mixing ratio detectors or SF at different positions of the sealed tank6The second interface of the decomposition product detector can carry out three-dimensional detection on the test process to obtain the spatial distribution condition of the required detection elements in the test system.
3. Through the setting of the adsorbent window, the device can simulate the equipment fault point, the detection point and the position of the adsorbent to SF6The effect of the decomposition product gas detection results.
4. Through the setting of intellectual detection system control system, not only can detect the real-time data in the gas test system, can also realize the continuous monitoring to the test process.
Drawings
FIG. 1 shows an SF according to an embodiment of the present invention6A front view of a mixed insulating gas testing device;
fig. 2 is a rear view of a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a temperature control system according to an embodiment of the present invention;
fig. 4 is a rear view of a sixth embodiment of the present invention.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention by those skilled in the art, the technical solutions of the present invention will now be further described with reference to the drawings attached to the specification.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless explicitly stated or limited otherwise, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Example one
Referring to fig. 1 and 2, the present embodiment discloses an SF6The mixed insulating gas test device comprises a supporting platform 1, and a gas test system 2 and a temperature control system 3 which are fixed on the supporting platform 1 through a bracket 5, wherein the gas test system 2 is connected with the temperature control system 3; the research on the influence of different temperatures, gas pressures and gas types on the gas state of the mixed insulating gas and the diffusion of decomposition products is realized through the gas test system 2; the real-time temperature in the gas test system 2 is controlled by the temperature control system 3, so that the temperature in the test process can be controlled and flexibly adjusted, temperature variables are provided for various simulations and researches, and the influence of the temperature on the test result is finally obtained.
The sensors include a plurality of temperature sensors 25, pressure sensors 26, and humidity sensors 27, and the temperature sensors 25, the pressure sensors 26, and the humidity sensors 27 are all disposed at different positions on the hermetic container 21.
Further, refer to fig. 3, temperature control system 3 includes heating branch 31, refrigeration branch 32, circulating pump 33 and control cabinet 34, heating branch 31 and refrigeration branch 32 are parallelly connected, the input and the temperature control pipeline 22 entry 221 intercommunication of heating branch 31 and refrigeration branch 32, the output is through circulating pump 33 and temperature control pipeline 22 export 222 intercommunication and form the return circuit, heating branch 31, refrigeration branch 32 and circulating pump 33 all connect control cabinet 34, control cabinet 34 is fixed in supporting platform 1 side, comes operation control temperature control system 3's heating or refrigeration through control cabinet 34.
Specifically, the heating branch 31 includes a first electromagnetic valve 311, a heating device 312 and a second electromagnetic valve 313, the first electromagnetic valve 311, the heating device 312 and the second electromagnetic valve 313 are all connected to a console 34 and sequentially communicated with one another through a pipeline (not labeled in the figure), an input end of the first electromagnetic valve 311 is connected to an inlet 221 of the temperature control pipeline 22, an output end of the second electromagnetic valve 313 is connected to a circulation pump 33, the refrigerating branch 32 includes a third electromagnetic valve 321, a primary refrigerating device 322, a secondary refrigerating device 323 and a fourth electromagnetic valve 324, the third electromagnetic valve 321, the primary refrigerating device 322, the secondary refrigerating device 323 and the fourth electromagnetic valve 324 are all connected to the console 34 and sequentially communicated with one another through a pipeline, an input end of the third electromagnetic valve 321 is connected to an inlet 221 of the temperature control pipeline 22, and an output end of the fourth electromagnetic valve 324 is connected to the circulation pump; the specific implementation process, the circulation pump 33 is started, through opening first solenoid valve 311 and second solenoid valve 313, close third solenoid valve 321 and fourth solenoid valve 324, utilize heating device 312 to realize the fluid heating and temperature rising in temperature-controlled pipeline 22, thereby realize the intensification to seal pot 21, it is same, through opening third solenoid valve 321 and fourth solenoid valve 324, close first solenoid valve 311 and second solenoid valve 313, utilize one-level refrigerating plant 322 and second grade refrigerating plant 323 to the fluid cooling in temperature-controlled pipeline 22, thereby realize the cooling to seal pot 21, and then realize adjusting the temperature in seal pot 21 in real time through temperature control system 3, provide temperature control and study the influence of temperature to the mist test for each experiment.
Further, liquid observation window 24 bottom still is equipped with drain 214 for carry out the blowdown to the sealed tank 21 after the experiment, the both ends and the top of sealed tank 21 all are equipped with the lug 215 that is used for lifting by crane, make things convenient for later stage hoist and mount.
Still further, the lower end of the supporting platform 1 is provided with idler wheels 11 used for moving along the directions of the four corner ends, so that the test device can be conveniently moved.
Still further, this test device still includes intellectual detection system control system 4, intellectual detection system control system 4 is fixed on the supporting platform 1 of temperature control system 3 one side, intellectual detection system control system 4 connects the sensor, not only can receive the signal of temperature sensor 25, pressure sensor 26 and humidity transducer 27 transmission automatically and handle and obtain the testing result through intellectual detection system control system 4, can also control temperature sensor 25, pressure sensor 26 and humidity transducer 27's detection action, not only can detect the real-time data in the gaseous test system 2, can also realize the continuous monitoring to the experimentation.
Example two
The embodiment discloses an SF according to the first embodiment6Test method for simulating gas mixing and diffusion by using mixed insulating gas test device, particularly using SF6The mixed gas/N2 is prepared by the following steps:
1) the inside of the airtight can 21 is evacuated by a vacuum evacuation device (not shown).
2) After vacuum pumping is finished, the vacuum gauge 23 determines that SF is filled into the sealed tank 21 from one of the air inlets 2116And (3) when the gas reaches a set pressure value, starting the temperature control system 3 to control the temperature of the gas in the sealed tank 21 to be a set value, and respectively transmitting signals to the intelligent detection control system 4 for real-time detection through the pressure sensor 26 and the temperature sensor 25 so as to determine the set values of the pressure and the temperature.
3) N2 is filled into the sealed tank 211 from the air inlets 211 at different positions to a set pressure value, and the temperature and the pressure in the sealed tank 211 are kept unchanged.
4) SF by the mix ratio detector pair on the second interface 213 at different locations6The mixing ratio of the N2 is detected in real time, and the detection is finished until the mixing ratio detected by the mixing ratio detector at each position is the same.
5) Drawing SF according to the detection result6And the time-varying stereo model diagram of the N2 gas concentration in the sealed tank 21 for simulating the filling of mixed insulating gas by equipmentThe gas and the diffusion and distribution conditions of the gas when the insulating gas is supplemented into the equipment are determined, the time required for uniformly mixing the gas is determined, and the research on the gas mixing process in the new equipment after the gas of the new equipment is inflated or supplemented is realized.
6) The above steps were repeated, keeping the other conditions unchanged, and the gas temperatures tested in steps 2 and 3 were varied to study the effect of temperature on the mixed insulating gas mixing process.
EXAMPLE III
The embodiment discloses an SF according to the first embodiment6Simulation SF of mixed insulating gas test device6A method for testing diffusion of decomposition products, characterized by: the method comprises the following steps:
1) the inside of the airtight can 21 is evacuated by a vacuum evacuation device.
2) The vacuum meter 23 determines that SF with certain pressure and mixing ratio is filled into the sealed tank 21 from one of the air inlets 211 after the vacuum pumping is finished6Mixing insulating gas, and controlling the temperature of the gas in the sealed tank 21 to a set value through the temperature control system 3; likewise, the specific pressure and temperature are respectively transmitted to the intelligent detection control system 4 through the pressure sensor 26 and the temperature sensor 25 to be detected in real time, so as to determine the set values of the pressure and the temperature.
3) A certain amount of SF is filled into the sealed tank from the air inlet 211 at other different positions6Decompose the products and keep the temperature and pressure in the sealed tank 21 constant.
4) By SF over a second interface 213 in a different location6Decomposition product detector for SF in mixed insulating gas6The concentration of the decomposition product is detected in real time until the SF of each position6The decomposition product detector detects that the data is not changed any more.
5) Calculating SF from the measured results6The diffusion rate and diffusion path of the decomposition product in the mixed gas are obtained, and SF is drawn according to the measurement result6Stereo model diagram of concentration of decomposition product in sealed tank 21 with time change for simulating SF produced by equipment failure6When the product is decomposed, the reaction mixture is subjected to reaction,SF produced6The diffusion rate of the decomposition products in the mixed insulating gas, and the relation between the detection concentration of the decomposition products at the simulated fault point and the distance between the detection ports and the detection time.
6) Repeating the above steps, keeping other conditions unchanged, changing the gas temperature tested in steps 2 and 3 for studying temperature versus SF6Influence of the diffusion process of the decomposition products.
Example four
The embodiment discloses an SF according to the first embodiment6The test method for simulating gas leakage of the mixed insulating gas test device is characterized by comprising the following steps of: the sealed tank 21 is further provided with a third interface 214 for connecting a gas taking device (not shown), and the method comprises the following steps:
1) the inside of the airtight can 21 is evacuated by a vacuum evacuation device.
2) After the vacuum is completely pumped, the vacuum meter 23 determines that mixed insulating gas with certain pressure and mixing ratio is filled into the sealed tank 21 from one of the air inlets 211, and the temperature of the gas in the sealed tank 21 is controlled to a set value through the temperature control system 3; likewise, the specific pressure and temperature are respectively transmitted to the intelligent detection control system 4 through the pressure sensor 26 and the temperature sensor 25 to be detected in real time, so as to determine the set values of the pressure and the temperature.
3) The humidity of the gas in the sealed tank 21 is detected by the humidity sensor 27 sending a signal to the smart detection control system 4, and the gas mixing ratio in the sealed tank 21 is detected by the mixing ratio detector.
4) The gas is taken from the sealed tank 21 through the gas taking device on the third interface 214 at a certain flow rate, the gas leakage of the sealed tank 21 outwards at a certain leakage rate is simulated, then the gas mixing ratio in the sealed tank 21 is periodically detected through the mixing ratio detector on the second interface 213 at different positions, the humidity of the gas in the sealed tank 21 is detected through the humidity sensor 27, the gas pressure in the sealed tank 21 is detected through the pressure sensor 26, and the gas taking is stopped until the gas pressure in the sealed tank 21 is reduced to half of the original pressure.
5) Comparing and analyzing the detection result in the step 4 and the detection result in the step 3 to obtain the influence of gas leakage on gas humidity and gas mixing ratio;
6) repeating the above steps, changing the flow rate of gas taking of the gas taking device in the step 4, simulating leakage of the sealed tank 21 at different leakage rates, and simulating the relationship between the leakage rate of gas in the equipment and the gas humidity and gas mixing ratio to realize the SF gas leakage6And (3) researching the influence of the performance parameters of the mixed insulating gas.
EXAMPLE five
The embodiment discloses an SF according to the first embodiment6The test method for simulating gas liquefaction by using the mixed insulating gas test device is characterized by comprising the following steps of: the temperature control system can control the temperature in the sealed tank to be-80-50 ℃ and is used for simulating the temperature range which can be met by equipment in use, and the method comprises the following steps:
1) the inside of the airtight can 21 is evacuated by a vacuum evacuation device.
2) After the vacuum is exhausted, mixed insulating gas with certain pressure and mixing ratio is filled into the sealed tank 21 from one of the air inlets 211 through the vacuum meter 23, and the temperature of the gas in the sealed tank is controlled to a set value through the temperature control system 3; likewise, the specific pressure and temperature are respectively transmitted to the intelligent detection control system 4 through the pressure sensor 26 and the temperature sensor 25 to be detected in real time, so as to determine the set values of the pressure and the temperature.
3) The temperature control system 3 is used for cooling the inside of the sealed tank 21, the liquefaction process of the gas is observed in the liquid observation window 24, after the gas in the mixed insulating gas is liquefied, the temperature sensor 25, the pressure sensor 26 and the mixing ratio detector are used for respectively detecting the gas temperature, the gas pressure and the gas mixing ratio at the moment, and then the temperature is continuously reduced until the temperature cannot be reduced.
4) Analyzing the gas liquefaction detection result to obtain the influence of gas liquefaction on gas pressure and gas mixing ratio;
5) repeating the above steps, and changing the pressure or mixing ratio of the mixed insulating gas in step 2 respectively for each timeThe gas liquefaction detection results are compared and analyzed, and the gas liquefaction detection results are used for simulating the relationship between different mixing ratios of gases and different gas pressures to the gas liquefaction temperature in equipment to realize the liquefaction of SF6And (3) researching the influence of the performance parameters of the mixed insulating gas.
6) And repeating the steps, changing the cooling rate of the gas in the sealed tank 21 by the temperature control system 3 in the step 3, simulating the influence of the rapid liquefaction of the gas on the performance parameters of the mixed insulating gas under different cooling rates, particularly under the condition of rapid cooling, and obtaining the reserved time for taking emergency treatment measures on the mixed insulating gas electrical equipment under the condition of rapid cooling from the detection result.
EXAMPLE six
Referring to fig. 4, the present embodiment discloses an SF using the method of the first embodiment6Mixed insulating gas test device for simulating adsorbent to SF6The test method for gas adsorption of decomposition products is characterized by comprising the following steps: the back of the seal pot 21 is also provided with an adsorbent window 28 for placing an adsorbent, and the method comprises the following steps:
1) the adsorbent window 28 is filled with the adsorbent into the hermetic vessel 21.
2) The inside of the airtight can 21 is evacuated by a vacuum evacuation device.
3) After the vacuum is completely pumped, the vacuum meter 23 determines that mixed insulating gas with certain pressure and mixing ratio is filled into the sealed tank 21 from one of the air inlets 211, and the temperature of the gas in the sealed tank 21 is controlled to a set value through the temperature control system 3; likewise, the specific pressure and temperature are respectively transmitted to the intelligent detection control system 4 through the pressure sensor 26 and the temperature sensor 25 to be detected in real time, so as to determine the set values of the pressure and the temperature.
4) Then SF with a certain concentration is filled into the sealed tank 21 from one of the air inlets 2116SF of decomposition products6Gas, with the inlet 211 simulating the point of failure of the equipment, is periodically passed through the SF at the second interface 213 at different locations6Decomposition product detector for SF in sealed tank 216Detecting the decomposition product until SF6The concentration of decomposition products no longer changes or SF cannot be detected6The detection of the decomposition product is finished;
5) analyzing the concentration detection result to obtain SF under the action of the adsorbent6The relationship of the concentration of the decomposition products with time;
6) repeating the above steps, and changing the filling of SF in the step 46SF of decomposition products6The gas inlets 211, and then the concentration detection results of each gas inlet 211 after being inflated are compared and analyzed for simulating the SF at the fault point, the detection point and the position of the adsorbent of the equipment6Influence of decomposition product detection results.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The above embodiments only show the embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of modifications and improvements can be made without departing from the concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention.
Claims (8)
1. SF (sulfur hexafluoride)6Mix insulating gas test device, its characterized in that: the device comprises a supporting platform, and a gas test system and a temperature control system which are fixed on the supporting platform, wherein the gas test system is connected with the temperature control system;
the gas test system comprises a seal pot, a temperature control pipeline, a vacuum meter and a plurality of sensors, wherein the temperature control pipeline is arranged in the seal pot, the inlet and outlet of the temperature control pipeline are connected with the temperature control system, and the seal pot is provided with an upper opening and a lower openingThe vacuum mixing ratio tester is provided with a vacuum meter and a plurality of sensors, and the sealing tank is also provided with a plurality of air inlets, a first interface for connecting a vacuumizing device and a plurality of connectors for connecting a mixing ratio tester or an SF6The gas inlet, the first interface and the second interface are all arranged at different positions on the seal tank;
the sensor includes temperature sensor, pressure sensor and humidity transducer, temperature sensor, pressure sensor and humidity transducer all set up the different positions on the seal pot.
2. SF according to claim 16Mix insulating gas test device, its characterized in that: temperature control system is including heating branch road, refrigeration branch road, circulating pump and control cabinet, it is parallelly connected with the refrigeration branch road to heat the branch road, the input and the temperature control pipeline entry intercommunication of branch road and refrigeration branch road heat, and the output passes through circulating pump and temperature control pipeline export intercommunication and forms the return circuit, it all connects the control cabinet to heat branch road, refrigeration branch road and circulating pump, the control cabinet is fixed in the supporting platform side.
3. An SF according to claim 26Mix insulating gas test device, its characterized in that: the heating branch comprises a first electromagnetic valve, a heating device and a second electromagnetic valve, the first electromagnetic valve, the heating device and the second electromagnetic valve are all connected with a control console and are communicated through a pipeline in sequence, the input end of the first electromagnetic valve is connected with the inlet of a temperature control pipeline, and the output end of the second electromagnetic valve is connected with a circulating pump.
4. An SF according to claim 36Mix insulating gas test device, its characterized in that: the refrigeration branch comprises a third electromagnetic valve, a first-stage refrigeration device, a second-stage refrigeration device and a fourth electromagnetic valve, the third electromagnetic valve, the first-stage refrigeration device, the second-stage refrigeration device and the fourth electromagnetic valve are all connected with a control console and are communicated through a pipeline in sequence, the input end of the third electromagnetic valve is connected with the inlet of a temperature control pipeline, and the fourth electromagnetic valveThe output end of the valve is connected with a circulating pump.
5. SF according to claim 16Mix insulating gas test device, its characterized in that: and a third interface for connecting a gas taking device is also arranged on the seal tank.
6. SF according to claim 16Mix insulating gas test device, its characterized in that: and the bottom end of the seal tank is also provided with a liquid observation window for observing the liquefaction of the gas in the seal tank.
7. SF according to claim 16Mix insulating gas test device, its characterized in that: and an adsorbent window is also arranged on the seal tank.
8. SF according to claim 16Mix insulating gas test device, its characterized in that: still include intellectual detection system control system, intellectual detection system control system fixes on the brace table of temperature control system one side, intellectual detection system control system connection sensor.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578018A (en) * | 2020-11-24 | 2021-03-30 | 广东电网有限责任公司电力科学研究院 | Novel device and method for testing decomposition and composite characteristics of environment-friendly insulating gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578018A (en) * | 2020-11-24 | 2021-03-30 | 广东电网有限责任公司电力科学研究院 | Novel device and method for testing decomposition and composite characteristics of environment-friendly insulating gas |
| CN112578018B (en) * | 2020-11-24 | 2022-01-11 | 广东电网有限责任公司电力科学研究院 | Device and method for testing decomposition and composite characteristics of insulating gas |
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