CN115430470A - Oil leakage monitoring and catalytic degradation device system for power capacitor - Google Patents
Oil leakage monitoring and catalytic degradation device system for power capacitor Download PDFInfo
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- 239000003990 capacitor Substances 0.000 title claims abstract description 94
- 238000012544 monitoring process Methods 0.000 title claims abstract description 67
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 55
- 230000015556 catabolic process Effects 0.000 title claims abstract description 54
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 54
- 238000012806 monitoring device Methods 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 239000003054 catalyst Substances 0.000 claims description 17
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 16
- 239000004065 semiconductor Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 5
- 238000013329 compounding Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 18
- 230000000593 degrading effect Effects 0.000 abstract description 6
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
- A62D3/38—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by oxidation; by combustion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/19—Catalysts containing parts with different compositions
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/28—Organic substances containing oxygen, sulfur, selenium or tellurium, i.e. chalcogen
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Abstract
The invention provides a power capacitor oil leakage monitoring and catalytic degradation device system, which comprises an oil leakage monitoring device, an oil receiving container and at least one catalytic degradation device, wherein the oil leakage monitoring device is connected with the oil receiving container; the oil leakage monitoring device is arranged at a container opening of the oil receiving container; the catalytic degradation device is arranged inside the oil receiving container; the oil receiving container is arranged below the power capacitor; and a liquid medium is arranged in the oil receiving container. The device system for monitoring oil leakage of the power capacitor and catalyzing and degrading provided by the invention can realize real-time online monitoring of the capacitor and can synchronously process the insulating oil leaked in the capacitor; and the device has simple system structure and lower cost.
Description
Technical Field
The invention belongs to the field of monitoring devices, relates to an oil leakage monitoring device, and particularly relates to a power capacitor oil leakage monitoring and catalytic degradation device system.
Background
The capacitor bank is used as an important reactive component in the power system, and plays a key role in the process of adjusting reactive power and stabilizing voltage of the power system.
The capacitor bank is usually formed by connecting capacitor monomers in series and parallel in a certain way to play a role. Insulating oil is filled in the capacitor monomer to play an insulating role.
Due to the heat absorption and release in the working process of the capacitor monomer and the manufacturing process of the capacitor monomer, if various problems such as swelling, damage and the like exist, the insulating oil in the capacitor monomer can be leaked to the ground. This can lead to two serious consequences:
(1) The oil leakage amount of the capacitor monomer is too large, so that the insulation performance in the capacitor is obviously reduced, internal short circuit faults occur, electric equipment accidents are caused, and equipment damage, power grid disconnection or personal injury and death are caused;
(2) Insulating oil is used as a petrochemical product, can cause certain damage to the environment, has certain flammability, can damage the soil ecology of the area in which the insulating oil is accumulated for a long time, and has the possibility of causing electrical fire.
Because the expansion coefficients of the porcelain bushing and the metal shell of the capacitor are different, the phenomenon of oil leakage at the root part of the porcelain bushing of the capacitor is caused. The existing common method is solved by manual inspection, but the manual monitoring method not only wastes manpower, but also finds that the oil leakage of the power capacitor has great uncertainty and instability.
CN 201561844U discloses an oil leakage online monitoring device for a power capacitor, which comprises an infrared monitoring probe group, a server and a computer, wherein the server is connected with the infrared monitoring probe group through a transmission line; the number of the infrared monitoring device probes in the infrared monitoring probe group is 5; the transmission line is an optical fiber. The device that this patent provided can carry out real-time on-line monitoring to power capacitor, nevertheless has the component more, and the cost is higher not enough.
CN 104748918A discloses a power capacitor leakage detection device, comprising: the oil receiving container is used for collecting oil leaked from the power capacitor and is arranged below the power capacitor; a power supply for applying a voltage to the liquid in the oil receiving container, the power supply being connected to the oil receiving container; and a photoacoustic spectrum detector for detecting gas generated after voltage is applied, which is arranged at the container opening of the oil container. The electric leakage detection device for the power capacitor provided by the patent can be detected by the photoacoustic spectrum detector after liquid is pressurized to generate gas in the using process, and the method is complex.
CN 21339739U discloses an oil leakage monitoring device for a converter station oil-immersed capacitor, where the oil leakage monitoring device for the converter station oil-immersed capacitor includes an oil accumulating device disposed below the converter station oil-immersed capacitor, the oil accumulating device is an oil accumulating pan with an inclined plane, a strip-shaped oil leakage sensor is disposed on the inclined plane of the oil accumulating pan, the oil leakage sensor is connected to an oil leakage detection control system through a signal line, and the oil leakage detection control system is connected to an alarm system. The device that this patent provided can carry out real-time on-line monitoring to the condenser, nevertheless has the component more, and the higher shortcoming of cost.
The above patents can realize real-time online monitoring of the capacitor, but can not treat the insulating oil leaked in the capacitor, and the subsequent treatment process increases the treatment cost and the treatment difficulty.
Therefore, it is an urgent need in the art to provide a device that can perform real-time online monitoring of a capacitor and synchronously process the leaked insulating oil in the capacitor.
Disclosure of Invention
The invention aims to provide a device system for monitoring oil leakage of a power capacitor and performing catalytic degradation, which can realize real-time online monitoring of the capacitor and synchronously process insulating oil leaked in the capacitor; and the device has simple system structure and lower cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a power capacitor oil leakage monitoring and catalytic degradation device system, which comprises an oil leakage monitoring device, an oil receiving container and at least one catalytic degradation device, wherein the oil leakage monitoring device is connected with the oil receiving container;
the oil leakage monitoring device is arranged at a container opening of the oil receiving container;
the catalytic degradation device is arranged inside the oil receiving container;
the oil receiving container is arranged below the power capacitor;
and a liquid medium is arranged in the oil receiving container.
The oil leakage monitoring and catalytic degradation device system of the power capacitor receives the insulating oil leaked by the power capacitor through the oil receiving container, and forms an oil film above a liquid medium; then monitoring an oil film through an oil leakage monitoring device, so as to prove that the power capacitor has an oil leakage phenomenon, and giving an alarm to prompt operation and maintenance personnel to process;
in addition, the catalytic degradation device is used for carrying out catalytic degradation on the insulating oil in the butt joint oil container.
Therefore, the device system for monitoring oil leakage of the power capacitor and catalyzing degradation provided by the invention can realize real-time online monitoring of the capacitor and can synchronously process the insulating oil leaked in the capacitor.
Preferably, the oil receiving container comprises a housing and a liquid medium arranged inside the housing.
Preferably, the liquid medium comprises water.
The invention adopts water as a liquid medium, the insulating oil leaked by the power capacitor is dissolved in an organic solvent and is insoluble in water, and the water is adopted as the medium to easily form an oil film, thereby being convenient for monitoring; and the water cost is low, and the water is easy to obtain.
Preferably, the material of the shell comprises polytetrafluoroethylene and/or teflon.
The shell is made of corrosion-resistant and light polytetrafluoroethylene and/or Teflon materials, so that the weight of the device system can be effectively reduced, and the device system is convenient to install.
Preferably, the housing includes an outer frame and a base.
Preferably, a support is arranged on one side of the outer frame away from the base.
Preferably, the angle between the support and the base is 40 to 50 °, for example 40 °, 41 °, 42 °, 43 °, 44 °, 45 °, 46 °, 47 °, 48 °, 49 ° or 50 °, but not limited to the values listed, and other values not listed in the numerical range are equally applicable.
Preferably, an oil leakage monitoring device is arranged on the support.
Preferably, the oil leakage monitoring device is sequentially provided with a semiconductor ultraviolet laser light source generator, a fluorescence receiving device, a fluorescence analyzing device and an alarm device according to the distance from the oil receiving container from near to far.
Preferably, the light source of the semiconductor ultraviolet laser light source generator includes a semiconductor laser diode.
Preferably, the alarm criteria of the alarm device are: the thickness of the oil film in the oil receiving container is not less than 5 μm, and may be, for example, 5 μm, 5.2 μm, 5.4 μm, 5.6 μm, 5.8 μm, 6 μm or 6.2 μm, but is not limited to the values listed, and other values not listed in the numerical range are also applicable.
The monitoring principle of the oil leakage monitoring device is as follows: and (3) analyzing whether an oil film exists on the water surface or not according to fluorescence emitted after the petroleum, aromatic compounds in the petroleum and compounds containing conjugated double bonds absorb ultraviolet light.
The light source of the semiconductor ultraviolet laser light source generator is a semiconductor laser diode which can generate laser beams with 365nm peak wavelength to the liquid medium of the oil receiving container; the fluorescence receiving device is used for receiving fluorescence reflected after an oil film on a liquid medium of the oil receiving container receives laser beam irradiation and transmitting a related signal to the fluorescence analysis device; the fluorescence analysis device analyzes the fluorescence and converts the fluorescence into a signal of oil film thickness to be transmitted to the alarm device; the alarm device receives the oil film thickness signal and gives an alarm when the oil film thickness exceeds 0.5 mu m.
Preferably, the catalytic degradation device is used for catalytically degrading the insulating oil in the oil container.
Preferably, the catalytic degradation device comprises a porous housing and a catalyst.
Preferably, the catalyst is disposed within the interior of the porous shell.
Preferably, the material of the porous shell comprises polyvinyl chloride.
Preferably, the catalyst comprises C 3 N 4 /TiO 2 And (3) compounding a catalyst.
Said C of the invention 3 N 4 /TiO 2 The composite catalyst has excellent catalytic oxidation effect on petroleum hydrocarbon substances, and can catalytically decompose the petroleum hydrocarbon substances into CO under the conditions of normal temperature and normal pressure 2 And H 2 O。
Preferably, said C 3 N 4 /TiO 2 The preparation method of the composite catalyst comprises the following steps:
(1) Mixing C 3 N 4 And TiO 2 Stirring to obtain gel;
(2) Calcining the gel obtained in the step (1) to obtain the C 3 N 4 /TiO 2 And (3) compounding a catalyst.
Preferably, said C of step (1) 3 N 4 And TiO 2 The mass ratio of (2-3) to (7-8) can be, for example, 2.
Preferably, the calcination temperature in step (2) is 340-380 ℃, for example 340 ℃, 350 ℃, 360 ℃, 370 ℃ or 380 ℃, but not limited to the recited values, and other values not recited in the range of values are also applicable.
The recitation of numerical ranges herein includes not only the above-recited numerical values, but also any numerical values between non-recited numerical ranges, and is not intended to be exhaustive or to limit the invention to the precise numerical values encompassed within the range for brevity and clarity.
Compared with the prior art, the invention has the following beneficial effects:
(1) The device system for monitoring oil leakage of the power capacitor and catalyzing and degrading provided by the invention can realize real-time online monitoring of the capacitor and synchronously process the insulating oil leaked in the capacitor;
(2) The oil leakage monitoring and catalytic degradation device system of the power capacitor provided by the invention has high monitoring precision, and the oil film thickness is more than 0.5 mu m, so that the measurement and alarm can be realized;
(3) The device system for monitoring oil leakage of the power capacitor and catalytically degrading the oil leakage of the power capacitor can better catalytically decompose insulating oil, does not need other special reaction conditions, has good catalytic effect, and can degrade the insulating oil into nontoxic and harmless CO 2 And H 2 O。
Drawings
Fig. 1 is a schematic structural diagram of a power capacitor oil leakage monitoring and catalytic degradation device system provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of an oil leakage monitoring apparatus provided in embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a catalytic degradation device provided in embodiment 1 of the present invention.
Wherein, 1 is an oil receiving container, 2 is an oil leakage monitoring device, 3 is a catalytic degradation device, 1-1 is an outer frame, 1-2 is a base, 1-3 is a support, 1-4 is a liquid medium, 2-1 is a semiconductor ultraviolet laser light source generator, 2-2 is a fluorescence receiving device, 2-3 is a fluorescence analyzing device, and 2-4 is an alarm device.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Example 1
The embodiment provides a power capacitor oil leakage monitoring and catalytic degradation device system as shown in fig. 1, which includes an oil leakage monitoring device 2 as shown in fig. 2, an oil receiving container 1, and at least one catalytic degradation device 3 as shown in fig. 3;
the oil leakage monitoring device 2 is arranged at the container opening of the oil receiving container 1;
the catalytic degradation device 3 is arranged inside the oil receiving container 1;
the oil receiving container 1 is arranged below the power capacitor;
and a liquid medium 2-4 is arranged in the oil receiving container 1.
The oil receiving container 1 comprises a shell made of polytetrafluoroethylene and liquid media 2-4 arranged inside the shell, wherein the liquid media 2-4 are water.
The shell comprises an outer frame 1-1 and a base 1-2; a support 1-3 is arranged on one side of the outer frame 1-1 far away from the base 1-2; the included angle between the support 1-3 and the base 1-2 is 45 degrees; and an oil leakage monitoring device 2 is arranged on the support 1-3.
As shown in fig. 2, the oil leakage monitoring device 2 is sequentially provided with a semiconductor ultraviolet laser light source generator 2-1, a fluorescence receiving device 2-2, a fluorescence analyzing device 2-3 and an alarm device 2-4 from near to far from the oil receiving container.
The light source of the semiconductor ultraviolet laser light source generator 2-1 is a semiconductor laser diode; the alarm criteria of the alarm devices 2-4 are: the thickness of the oil film in the oil receiving container 1 is more than or equal to 5 mu m
The catalytic degradation device 3 is used for catalytically degrading the insulating oil in the oil receiving container 1.
As shown in FIG. 3, the catalytic degradation device 3 comprises a porous shell and C 3 N 4 /TiO 2 A composite catalyst; said C is 3 N 4 /TiO 2 The composite catalyst is arranged inside the porous shell; the porous shell is made of polyvinyl chloride.
The power capacitor oil leakage monitoring and catalytic degradation device system provided by the embodiment can realize real-time online monitoring of the capacitor and can also synchronously process insulating oil leaked in the capacitor;
the monitoring precision is high in the monitoring process, and the high-efficiency decomposition of the insulating oil can be completed under the environment-friendly condition.
This example illustrates C 3 N 4 /TiO 2 The preparation method of the composite catalyst comprises the following steps:
(1) Mixing C in a mass ratio of 3 3 N 4 And TiO 2 Stirring to obtain gel;
(2) Calcining the gel obtained in step (1) at 365 ℃ to obtain C 3 N 4 /TiO 2 And (3) compounding a catalyst.
Example 2
The embodiment provides a power capacitor oil leakage monitoring and catalytic degradation device system, which is different from the power capacitor oil leakage monitoring and catalytic degradation device system in embodiment 1 only in that:
in the embodiment, the included angle between the support 1-3 and the base 1-2 is changed to 35 degrees.
The power capacitor oil leakage monitoring and catalytic degradation device system provided by the embodiment can realize real-time online monitoring of the capacitor and can also synchronously process insulating oil leaked in the capacitor; the high-efficiency decomposition of the insulating oil can be completed under the environment-friendly condition;
however, the included angle between the oil leakage monitoring device and the horizontal plane is too small, so that the oil leakage condition cannot be monitored in time, and the detection is not timely.
Example 3
The embodiment provides a power capacitor oil leakage monitoring and catalytic degradation device system, which is different from the power capacitor oil leakage monitoring and catalytic degradation device system in embodiment 1 only in that:
in the embodiment, the included angle between the support 1-3 and the base 1-2 is changed to 55 degrees.
The power capacitor oil leakage monitoring and catalytic degradation device system provided by the embodiment can realize real-time online monitoring of the capacitor and can also synchronously process insulating oil leaked in the capacitor; the high-efficiency decomposition of the insulating oil can be completed under the environment-friendly condition;
however, the included angle between the oil leakage monitoring device and the horizontal plane is too large, so that the oil leakage condition cannot be monitored in time, and the detection is not timely.
Example 4
The embodiment provides a power capacitor oil leakage monitoring and catalytic degradation device system, which is different from the power capacitor oil leakage monitoring and catalytic degradation device system in embodiment 1 only in that:
in this embodiment, the housing of the oil container 1 is made of stainless steel.
The power capacitor oil leakage monitoring and catalytic degradation device system provided by the embodiment can realize real-time online monitoring of the capacitor and can also synchronously process insulating oil leaked in the capacitor;
the monitoring precision is high in the monitoring process, and the high-efficiency decomposition of the insulating oil can be completed under the environment-friendly condition.
However, the weight of the stainless steel oil receiving container is too high, which is not favorable for installation and use.
Example 5
The embodiment provides a power capacitor oil leakage monitoring and catalytic degradation device system, which is different from the power capacitor oil leakage monitoring and catalytic degradation device system in embodiment 1 only in that:
in this example, the liquid medium in the oil receiving container 1 was replaced with ethanol.
Compared with the embodiment 1, the liquid medium provided by the embodiment can react with the insulating oil, so that the formation of an oil film on the surface of the liquid medium is influenced, and the real-time monitoring precision is further influenced.
Comparative example 1
This comparative example provides a power capacitor oil leakage monitoring device system, which differs from example 1 only in that:
the present comparative example omits the catalytic degradation device 3.
Compared with embodiment 1, the oil leakage monitoring device system for the power capacitor, provided by the comparative example, can realize real-time online monitoring of the capacitor, but cannot catalyze and degrade leaked insulating oil, so that the labor cost and the treatment cost are increased.
Comparative example 2
The present comparative example provides a power capacitor oil leakage monitoring and catalytic degradation device system, which differs from embodiment 1 only in that:
the liquid medium 2-4 provided inside the oil receiver 1 is omitted from this comparative example.
By using the power capacitor oil leakage monitoring and catalytic degradation device system provided by the comparative example, when the power capacitor leaks, the insulating oil dropping into the oil receiving container 1 cannot form an oil film, and the oil leakage monitoring device cannot monitor in time.
In conclusion, the device system for monitoring oil leakage of the power capacitor and catalyzing and degrading provided by the invention can realize real-time online monitoring of the capacitor and synchronously process the insulating oil leaked in the capacitor; and the device has simple system structure and lower cost.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.
Claims (10)
1. A power capacitor oil leakage monitoring and catalytic degradation device system is characterized by comprising an oil leakage monitoring device, an oil receiving container and at least one catalytic degradation device;
the oil leakage monitoring device is arranged at a container opening of the oil receiving container;
the catalytic degradation device is arranged inside the oil receiving container;
the oil receiving container is arranged below the power capacitor;
and a liquid medium is arranged in the oil receiving container.
2. The power capacitor oil leakage monitoring and catalytic degradation device system according to claim 1, wherein the oil receiving vessel comprises a housing and a liquid medium disposed inside the housing;
preferably, the liquid medium comprises water;
preferably, the material of the shell comprises polytetrafluoroethylene and/or teflon.
3. The power capacitor oil leakage monitoring and catalytic degradation device system of claim 2, wherein the housing comprises an outer frame and a base;
preferably, a support is arranged on one side of the outer frame, which is far away from the base;
preferably, the included angle between the support and the base is 40-50 degrees;
preferably, an oil leakage monitoring device is arranged on the support.
4. The power capacitor oil leakage monitoring and catalytic degradation device system according to any one of claims 1-3, wherein the oil leakage monitoring device is provided with a semiconductor ultraviolet laser light source generator, a fluorescence receiving device, a fluorescence analyzing device and an alarm device in sequence according to the distance from the oil receiving container from the near to the far.
5. The power capacitor oil leakage monitoring and catalytic degradation device system of claim 4, wherein the light source of the semiconductor ultraviolet laser light source generator comprises a semiconductor laser diode.
6. The power capacitor oil leakage monitoring and catalytic degradation device system according to claim 4, wherein the alarm device has alarm criteria of: the thickness of the oil film in the oil receiving container is more than or equal to 5 mu m.
7. A power capacitor oil leakage monitoring and catalytic degradation device system according to any of claims 1-6, wherein the catalytic degradation device is adapted to catalytically degrade insulating oil in an oil container.
8. A power capacitor oil leakage monitoring and catalytic degradation device system according to any of claims 1-7, wherein the catalytic degradation device comprises a porous housing and a catalyst;
preferably, the catalyst is disposed inside a porous housing;
preferably, the material of the porous shell comprises polyvinyl chloride.
9. The power capacitor oil leakage monitoring and catalytic degradation device system of claim 8, wherein the catalyst comprises C 3 N 4 /TiO 2 And (3) compounding a catalyst.
10. The power capacitor oil leakage monitoring and catalytic degradation device system of claim 9, wherein C is 3 N 4 /TiO 2 The preparation method of the composite catalyst comprises the following steps:
(1) Mixing C 3 N 4 And TiO 2 Stirring to obtain gel;
(2) Calcining the gel obtained in the step (1) to obtain the C 3 N 4 /TiO 2 And (3) compounding a catalyst.
Preferably, said C of step (1) 3 N 4 And TiO 2 The mass ratio of (2-3) to (7-8);
preferably, the temperature of the calcination in the step (2) is 340-380 ℃.
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| CN202211118582.4A CN115430470A (en) | 2022-09-13 | 2022-09-13 | Oil leakage monitoring and catalytic degradation device system for power capacitor |
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| CN202211118582.4A CN115430470A (en) | 2022-09-13 | 2022-09-13 | Oil leakage monitoring and catalytic degradation device system for power capacitor |
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Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5942960U (en) * | 1982-09-16 | 1984-03-21 | 株式会社潤工社 | Water surface oil detection device |
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