CN215934477U - Fireproof high-voltage parallel capacitor device - Google Patents
Fireproof high-voltage parallel capacitor device Download PDFInfo
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- CN215934477U CN215934477U CN202122471769.XU CN202122471769U CN215934477U CN 215934477 U CN215934477 U CN 215934477U CN 202122471769 U CN202122471769 U CN 202122471769U CN 215934477 U CN215934477 U CN 215934477U
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- 239000003990 capacitor Substances 0.000 title claims abstract description 183
- 239000011229 interlayer Substances 0.000 claims abstract description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000008213 purified water Substances 0.000 claims abstract description 21
- 238000009413 insulation Methods 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 12
- 239000003365 glass fiber Substances 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 3
- 239000011800 void material Substances 0.000 claims 2
- 230000009172 bursting Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000012212 insulator Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model discloses a fireproof high-voltage parallel capacitor device which comprises a wire inlet cabinet, a reactor cabinet and at least two capacitor cabinets which are sequentially and adjacently arranged, wherein fireproof high-voltage parallel capacitors are arranged in the capacitor cabinets, a first interlayer space and a second interlayer space are arranged between a capacitor unit shell and a capacitor shell from inside to outside, insulating oil is filled in the first interlayer space, and purified water is filled in the second interlayer space. The capacitor unit shell and the capacitor shell are provided with the first interlayer space and the second interlayer space from inside to outside, the first interlayer space is filled with insulating oil, the second interlayer space is filled with purified water, the purified water is added to help the capacitor to dissipate heat, and the possibility of bursting due to overhigh temperature is reduced; the practicability of the capacitor is improved.
Description
Technical Field
The utility model belongs to the field of power electronic devices, and particularly relates to a fireproof high-voltage parallel capacitor device.
Background
The high-voltage parallel capacitor device is the most commonly used device in a reactive power compensation device, and is widely applied to occasions of reactive power compensation, filtering, energy storage and the like in the fields of power transmission, distribution, power utilization and the like. At present, high-voltage power capacitor devices produced in China are divided into three types, namely a frame type, an integrated type and a cabinet type according to structural forms, and the main components of the high-voltage power capacitor devices are high-voltage parallel capacitors, reactors, discharge coils, isolating switches and the like. Among them, reactors and other electric components have been realized to be oilless in recent years. The designed field intensity of the capacitor is more than ten times of that of other electric elements, and the oil-free capacitor cannot be realized under the current technical and process conditions. The capacitor in the common capacitor device is a capacitor containing insulating oil, the insulating oil is flammable material, and when the capacitor breaks down, the internal heat is generated, so that the capacitor bursts and fires, and other equipment is affected. Although other equipment has fire-proof conditions, the capacitor does not have fire-proof conditions, so that the whole device does not have fire-proof performance, and potential safety hazards are brought to the operation of the device in an indoor substation and an underground substation. Therefore, to solve the fire-proof problem of the device, the capacitor with fire-proof performance and the dry reactor, the discharge coil and the isolating switch which are made of fire-retardant materials are necessarily used, so that the whole capacitor device can meet the fire-proof requirement. The capacitance will cause heating for the following reasons, firstly the quality of the capacitor is not good, the insulation is reduced, the leakage is increased, which is a common fault of many capacitances; the capacitor operates for a long time under overvoltage and overcurrent; overload operation of the capacitor, especially long-term instantaneous overload; a large amount of nonlinear loads exist in the power grid, a plurality of high-order wave components exist, and only fundamental waves are considered; poor heat dissipation of the capacitor chamber, etc. The temperature of the capacitor is easily overhigh and the capacitor cannot work normally.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fireproof high-voltage parallel capacitor device, which can ensure that the stability of the capacitor device is good and the normal work of a capacitor is ensured.
The technical scheme adopted by the utility model is as follows:
the utility model provides a fireproof high-voltage parallel capacitor device, which comprises a wire inlet cabinet, a reactor cabinet and at least two capacitor cabinets which are sequentially and adjacently arranged, wherein fireproof high-voltage parallel capacitors are arranged in the capacitor cabinets, each fireproof high-voltage parallel capacitor is provided with a capacitor unit, each capacitor unit comprises a capacitor element and a capacitor unit shell, the capacitor elements are arranged in the capacitor unit shells, the capacitor element is provided with a capacitor electrode, the capacitor unit shell is filled with insulating oil, the capacitor unit further comprises a capacitor shell, the capacitor unit is hermetically arranged in a capacitor shell, capacitor electrodes extend out of the capacitor shell through a sleeve, a first interlayer space and a second interlayer space are arranged between the capacitor unit shell and the capacitor shell from inside to outside, insulating oil is filled in the first interlayer space, and purified water is filled in the second interlayer space.
According to the technical content, the first interlayer space and the second interlayer space are arranged between the capacitor unit shell and the capacitor shell from inside to outside, the first interlayer space is filled with insulating oil, the second interlayer space is filled with purified water, the purified water is increased, the heat dissipation of the capacitor can be facilitated, and the possibility of bursting due to overhigh temperature is reduced; generally, when the insulating oil filled in the shell of the capacitor unit leaks, the insulating oil leaks into the first interlayer space, and the insulating oil is filled in the first interlayer space, so that the two parts of insulating oil can be exchanged with each other and cannot be exchanged with external pure water; when leakage occurs between the first interlayer space and the second interlayer space, the purified water enters the first interlayer space, so that the purified water does not enter the capacitor unit shell; therefore, when the capacitor unit shell and the capacitor shell leak, the working environment of the capacitor can still be maintained, and the problem that faults occur at two places simultaneously is very small, so that the practicability of the capacitor is improved.
In one possible embodiment, the first interlayer space is filled with an insulating oil which fills the entire first interlayer space. The whole first interlayer space is filled with the insulating oil filled in the first interlayer space, and when leakage occurs between the first interlayer space and the capacitor unit shell, the insulating oil in the capacitor unit shell cannot flow backwards, so that the insulating oil in the capacitor unit shell is less than a normal value; when the leakage occurs between the first interlayer space and the second interlayer space, the leakage space is filled with the insulating oil in the first interlayer space, the purified water is prevented from flowing backwards, the working environment of the shell of the capacitor unit is stable, and therefore the practicability is improved.
In one possible design, the purified water filled in the second interlayer space does not completely fill the second interlayer space. Set up the incomplete second intermediate layer space of filling of pure water, the pure water is the thermal expansion on the one hand, avoids exploding and splits, also can guarantee when taking place to leak between first intermediate layer space and the second intermediate layer space, flows back to second intermediate layer space by the insulating oil in first intermediate layer space for can not contact between pure water and the capacitor unit casing, keep capacitor unit casing operational environment stability.
In one possible design, the capacitor case surface is provided with a plurality of raised bars. The plurality of protruding strips are arranged on the surface of the capacitor shell, so that the heat dissipation of the surface of the capacitor can be facilitated.
In one possible design, a recess is provided in the raised strip, which recess communicates with the second interlayer space. Through setting up the space, space and second intermediate layer space intercommunication can increase the volume in second intermediate layer space, and the pure water that can hold is more, also can improve the heat dispersion of protruding strip.
In one possible design, a heat insulation interlayer is arranged on one side, close to the reactor cabinet, of the capacitor cabinet, and glass fiber cotton is filled in the heat insulation interlayer. Through setting up thermal-insulated intermediate layer, the packing glass fiber cotton in the intermediate layer both can insulate against heat, and is insulating moreover, can completely cut off the heat of condenser cabinet, also avoids the heat conduction in the condenser cabinet to influence the normal work of reactor cabinet and circuit breaker etc. simultaneously.
In a possible design, the side wall below the capacitor cabinet is provided with a louver window, and the top of the capacitor cabinet is provided with an exhaust fan. With this arrangement, heat dissipation is effectively facilitated.
The utility model has the following advantages and beneficial effects:
1. according to the utility model, the first interlayer space and the second interlayer space are arranged between the capacitor unit shell and the capacitor shell from inside to outside, the insulating oil is filled in the first interlayer space, and the purified water is filled in the second interlayer space, so that the purified water is added to help the capacitor to dissipate heat, and the bursting caused by overhigh temperature is reduced; generally, when the insulating oil filled in the shell of the capacitor unit leaks, the insulating oil leaks into the first interlayer space, and the insulating oil is filled in the first interlayer space, so that the two parts of insulating oil can be exchanged with each other and cannot be exchanged with external pure water; when leakage occurs between the first interlayer space and the second interlayer space, the purified water enters the first interlayer space, so that the purified water does not enter the capacitor unit shell; therefore, when the capacitor unit shell and the capacitor shell leak, the working environment of the capacitor can still be maintained, and generally, the problem that two parts have faults simultaneously is very small, so that the practicability of the capacitor is improved;
2. according to the utility model, the whole first interlayer space is filled with the insulating oil filled in the first interlayer space, and when leakage occurs between the first interlayer space and the capacitor unit shell, the insulating oil in the capacitor unit shell cannot flow backwards, so that the insulating oil in the capacitor unit shell is less than a normal value; when leakage occurs between the first interlayer space and the second interlayer space, the leakage space is filled with the insulating oil in the first interlayer space, backflow of purified water is blocked, and the working environment of the shell of the capacitor unit is stable, so that the practicability is improved; the purified water is arranged to incompletely fill the second interlayer space, so that on one hand, the purified water is heated to expand to avoid explosion, and on the other hand, when leakage occurs between the first interlayer space and the second interlayer space, the insulating oil in the first interlayer space flows back to the second interlayer space, so that the purified water is not in contact with the shell of the capacitor unit, and the stability of the working environment of the shell of the capacitor unit is kept;
3. the plurality of protruding strips are arranged on the surface of the capacitor shell, so that the surface of the capacitor can be helped to dissipate heat; through setting up the space, space and second intermediate layer space intercommunication can increase the volume in second intermediate layer space, and the pure water that can hold is more, also can improve the heat dispersion of protruding strip.
4. The utility model can insulate heat and insulate, can isolate the heat of the capacitor cabinet and simultaneously prevent the heat in the capacitor cabinet from being conducted to the reactor cabinet to influence the normal work of the reactor, the circuit breaker and the like by arranging the heat insulation interlayer and filling the glass fiber cotton in the interlayer
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:
FIG. 1 is a schematic diagram of a capacitor cell structure according to the present invention;
fig. 2 is a schematic structural diagram of a fireproof high-voltage parallel capacitor device of the utility model.
The reference numbers in the figures are:
1-inlet cabinet, 2-reactor cabinet, 3-capacitor cabinet, 4-capacitor unit, 5-isolation switch, 6-dry reactor, 7-dry discharge coil, 8-lightning arrester, 9-support insulator, 10-glass fiber cotton, 11-capacitor element, 12-capacitor unit shell, 13-capacitor core wrapping insulation, 14-sleeve, 15-filling space, 16-capacitor shell, 17-shell sleeve sealing element, 18-capacitor electrode, 19-capacitor unit bottom fixing element, 20-second interlayer space, 21-first interlayer space, 22-protruding strip.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments and accompanying drawings; it should be understood that the terms first, second, etc. are used merely for distinguishing between descriptions and are not intended to indicate or imply relative importance. Although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms.
As shown in fig. 1, in a first aspect, the present embodiment provides a fireproof high-voltage parallel capacitor device, which includes an incoming line cabinet 1, a reactor cabinet 2, and at least two capacitor cabinets 3, which are adjacently arranged in sequence, where each capacitor cabinet 3 is provided with a fireproof high-voltage parallel capacitor, the fireproof high-voltage parallel capacitor has a capacitor unit 4, the capacitor unit 4 includes a capacitor element 11, a capacitor unit casing 12, the capacitor element 11 is installed in the capacitor unit casing 12, the capacitor element 11 is provided with a capacitor electrode 18, the capacitor unit casing 12 is filled with insulating oil, and further includes a capacitor casing 16, the capacitor unit 4 is hermetically installed in the capacitor casing 16, the capacitor electrode 18 extends out of the capacitor casing 16 through a bushing 14, a first interlayer space 21 and a second interlayer space 20 are provided between the capacitor unit casing 12 and the capacitor casing 16 from inside to outside, the first interlayer space 21 is filled with insulating oil 15, and the second interlayer space is filled with purified water.
During specific implementation, the mounting holes of the incoming line cabinet 1, the reactor cabinet 2 and the capacitor cabinet 3 (which can be a plurality of) are modular holes, the mounting positions can be adjusted at will, and the requirements of generalization and serialization can be met. An isolating switch 5 is arranged in the inlet cabinet 1. The reactor cabinet 2 is provided with a dry reactor 6, and in the present embodiment, a dry iron core reactor which is dry and oil-free and has a small volume is selected and used. The capacitor cabinet 3 is provided with a fireproof high-voltage parallel capacitor 4 and a dry type oilless epoxy cast discharge coil 7. The incoming line cabinet 1, the reactor cabinet 2 and the capacitor cabinet (or a plurality of them) are arranged in sequence, wherein the isolating switch 5, the dry-type reactor 6, the dry-type discharge coil 7 and the fireproof high-voltage parallel capacitor 4 are connected by a lead. The supporting insulator 9 is arranged on the cabinet inner shell, the cabinet shell is made of an iron sheet, the iron sheet is low in voltage or 0 volt, and the thin wire connected with the supporting insulator is high in voltage, such as 10 kilovolts and 35 kilovolts. The lightning arrester 8 is also installed on the cabinet body, and its upper end is connected with high-voltage conductor, plays the lightning-arrest effect. The capacitor comprises a capacitor element 11, a capacitor unit shell 12, capacitor core wrapping insulation 13, a sleeve 14, insulating oil 15 in the capacitor unit shell, a capacitor shell 16, a shell sleeve sealing member 17, a capacitor electrode 18 and a capacitor unit bottom fixing member 19; after being wrapped by capacitor core wrapping insulation 13, the capacitor element 11 forms a capacitor core and is arranged in a capacitor unit shell 12, a filling space 15 is formed inside the capacitor unit shell 12, insulation oil is filled into the filling space 15 to form a capacitor unit, and the capacitor unit is arranged in a capacitor shell 16; the capacitor electrode 18 extends out of the capacitor housing 16 through the bushing 14, a spacer is arranged between the second interlayer space and the first interlayer space, and the sealing between the spacer and the housing is accomplished by the housing bushing seal 17 to form a complete fireproof capacitor.
In one possible embodiment, the insulating oil filled in the first interlayer space 21 fills the entire first interlayer space 21. The purified water filled in the second interlayer space does not completely fill the second interlayer space 20.
In one possible embodiment, the capacitor case 16 is provided with a plurality of raised bars 22 on a surface thereof. The raised strips 22 are provided with voids therein, which are in communication with the second interlayer space 20.
In one possible embodiment, as shown in fig. 2, a thermal insulation interlayer is arranged on one side of the capacitor cabinet 3 close to the reactor cabinet 2, and the thermal insulation interlayer is filled with glass fiber wool 10.
In a possible embodiment, the lower side wall of the capacitor cabinet 3 is provided with a louver window, and the top of the capacitor cabinet 3 is provided with an exhaust fan.
The above-mentioned embodiments are intended to illustrate the objects, aspects and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention.
Claims (7)
1. Fire prevention type high pressure shunt capacitance ware device, including inlet wire cabinet (1), reactor cabinet (2) and two at least condenser cabinets (3) that adjacent set gradually, its characterized in that all is provided with fire prevention type high pressure shunt capacitance ware in condenser cabinet (3), fire prevention type high pressure shunt capacitance ware has capacitor unit (4), capacitor unit (4) are including capacitor element (11) and capacitor unit casing (12), capacitor element (11) are adorned in capacitor unit casing (12), are equipped with capacitor electrode (18) on capacitor element (11), and it has insulating oil to fill in capacitor unit casing (12), still include capacitor shell (16), in capacitor unit (4) sealed packing capacitor shell (16), capacitor electrode (18) stretch out capacitor shell (16) through sleeve pipe (14), be provided with first intermediate layer space (21) from inside to outside between capacitor unit casing (12) and capacitor shell (16) ) And a second interlayer space (20), wherein the first interlayer space (21) is filled with insulating oil (15), and the second interlayer space (20) is filled with purified water.
2. The flameproof high-voltage parallel capacitor device according to claim 1, wherein the insulating oil filled in the first interlayer space (21) fills the entire first interlayer space (21).
3. The fire-protected high-voltage parallel capacitor device according to claim 2, wherein the second interlayer space (20) is not completely filled with pure water filled in the second interlayer space (20).
4. The flameproof high-voltage parallel capacitor device according to claim 1, characterized in that the capacitor case (16) is provided with a plurality of projecting strips (22) on its surface.
5. Fire-safe high-voltage parallel capacitor arrangement according to claim 4, characterized in that a void is provided in the protruding strip (22), which void communicates with the second interlayer space (20).
6. The fire-proof high-voltage parallel capacitor device according to claim 1, wherein a heat insulation interlayer is arranged on one side of the capacitor cabinet (3) close to the reactor cabinet (2), and glass fiber cotton (10) is filled in the heat insulation interlayer.
7. The fire-proof high-voltage parallel capacitor device according to claim 1, wherein the side wall below the capacitor cabinet (3) is provided with a louver window, and the top of the capacitor cabinet (3) is provided with an exhaust fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122471769.XU CN215934477U (en) | 2021-10-13 | 2021-10-13 | Fireproof high-voltage parallel capacitor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122471769.XU CN215934477U (en) | 2021-10-13 | 2021-10-13 | Fireproof high-voltage parallel capacitor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215934477U true CN215934477U (en) | 2022-03-01 |
Family
ID=80407809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122471769.XU Active CN215934477U (en) | 2021-10-13 | 2021-10-13 | Fireproof high-voltage parallel capacitor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215934477U (en) |
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2021
- 2021-10-13 CN CN202122471769.XU patent/CN215934477U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230627 Address after: A603, Shenzhen Aerospace Science and Technology Innovation Research Institute Building, No. 6 Keji South 10th Road, High tech Zone Community, Yuehai Street, Nanshan District, Shenzhen City, Guangdong Province, 518000 Patentee after: Wu-03 Industrial Group Co.,Ltd. Address before: 610000 No. 1, floor 22, building 3, No. 88, Jitai fifth road, high tech Zone, Chengdu, Sichuan Patentee before: Chengdu wu03 Technology Group Co.,Ltd. |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cao Jin Inventor before: Cao Jin Inventor before: Wu Jun Inventor before: Zheng Wei Inventor before: Tan Qianli |