CN216133767U - High-capacity high-shock-resistance capacitor device - Google Patents

Abstract

The utility model relates to a high-capacity high-anti-seismic capacitor device which comprises a base insulator, wherein a third capacitor rack is supported on the base insulator, a second capacitor rack is supported on the third capacitor rack, a first capacitor rack is supported on the second capacitor rack, and a high-voltage incoming line pipe bus is also supported on the first capacitor rack; the first capacitor rack, the second capacitor rack and all install the capacitor unit on the third capacitor rack, high-voltage inlet pipe is female with each capacitor unit establishes ties the back, with set up low pressure outlet pipe female the connection on the third capacitor rack. The utility model can not only improve the anti-seismic performance of the capacitor device, but also further improve the capacity of the capacitor device.

Description

High-capacity high-shock-resistance capacitor device

Technical Field

The utility model relates to a capacitor device, in particular to a high-capacity high-shock-resistance capacitor device.

Background

The DC capacitor belongs to a passive device, and the inverter circuit mainly carries out smooth filtering on the output voltage of the rectifier and then absorbs the high-amplitude pulsating current of the inverter.

The ultra-high voltage direct current transmission project has obvious comprehensive benefits and long-term strategic significance for optimizing energy configuration, guaranteeing power supply, promoting economic growth, promoting green development and the like. The direct-current filter capacitor device is used as one of main equipment of the ultra-high voltage direct-current transmission project converter station, and has the characteristics of large single-group capacity, large number of capacitor units, high insulation matching requirement and the like. When the capacity of a single group is large to a certain degree, double towers or multiple towers are required to be arranged, so that the occupied area and the device cost are greatly increased; many extra-high voltage converter stations in China are built in areas with high altitude and high seismic intensity, so that the insulation matching requirement is higher after being corrected according to the altitude, the height of the tower of the device is higher, the requirement of the high seismic intensity is met, the seismic performance of the tower of the device is very obvious, and deep research is needed.

Therefore, those skilled in the art have made an effort to develop a high-capacity high-anti-seismic capacitor device, which can not only improve the anti-seismic performance of the capacitor device, but also further improve the capacity of the capacitor device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-capacity high-anti-seismic capacitor device, which can improve the anti-seismic performance of the capacitor device and further improve the capacity of the capacitor device.

The technical scheme for solving the technical problems is as follows: a high-capacity high-anti-seismic capacitor device comprises a base insulator, wherein a third capacitor rack is supported on the base insulator, a second capacitor rack is supported on the third capacitor rack, a first capacitor rack is supported on the second capacitor rack, and a high-voltage incoming pipe bus is also supported on the first capacitor rack;

the first capacitor rack, the second capacitor rack and all install the capacitor unit on the third capacitor rack, high-voltage inlet pipe is female with each capacitor unit establishes ties the back, with set up low pressure outlet pipe female the connection on the third capacitor rack.

The utility model has the beneficial effects that: the capacitor device adopts multilayer capacitor rack arrangement, the capacity of the single-tower capacitor device is increased, the creepage distance is increased by the multilayer capacitor rack arrangement, and the safety performance is higher; the high-strength base insulator is adopted, and the double-base insulator structure is adopted, so that the anti-seismic performance of the capacitor device is improved.

On the basis of the technical scheme, the utility model can be further improved as follows.

Further, an interlayer insulator is arranged between every two adjacent layers of the capacitor racks.

The beneficial effect who adopts above-mentioned further scheme is that the insulator can effectual improvement insulating properties between the mutual two-layer capacitor rack.

Furthermore, the first capacitor rack is provided with equalizing rings at intervals.

The voltage-sharing ring has the advantages that the voltage-sharing ring can prevent side lightning and ensure that no potential difference exists between annular parts, so that the voltage-sharing effect is achieved.

Furthermore, the included angle of the interlayer insulators between the two ends of the first layer close to the base insulator and the third layer of the capacitor rack relative to the horizontal plane is 60-90 degrees.

The beneficial effect of adopting above-mentioned further scheme is that partial interlayer insulator slope sets up, further improves capacitor device's anti-seismic performance, and can effectual reduction capacitor device's displacement.

Further, be provided with 1 layer to 2 on the base insulator third capacitor rack, it has 2 layers to 20 to support on the third capacitor rack the second capacitor rack, it has 2 layers to 70 to support on the second capacitor rack the first capacitor rack.

The beneficial effect of adopting above-mentioned further scheme is that the capacitor rack of different levels is set up respectively according to different capacitor device demands to install capacitor unit.

Further, 4 to 20 capacitor units are disposed on each of the first, second, and third capacitor stages.

The beneficial effect of adopting above-mentioned further scheme is that the demand according to capacitor device sets up the capacitor unit, further improves capacitor device's capacity.

Further, the first capacitor rack, the second capacitor rack and the third capacitor rack are all provided with two groups of capacitor units.

The beneficial effect of adopting above-mentioned further scheme is that two sets of capacitor unit arrange in the both sides of capacitor rack, not only can improve capacitor device's capacity, and can reduce the potential difference.

Furthermore, the base insulator and the interlayer insulator are both epoxy solid core rod post composite insulators.

The beneficial effect of adopting the further scheme is that the base insulator and the interlayer insulator both adopt the epoxy solid core rod pillar composite insulator, so that the insulating strength of the base insulator and the interlayer insulator can be improved, and the base insulator and the interlayer insulator have high strength and high anti-seismic performance.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic top view of a first capacitor rack according to an embodiment of the utility model;

FIG. 3 is a schematic top view of a second capacitor rack according to an embodiment of the present invention;

fig. 4 is a schematic top view of a third capacitor platform according to an embodiment of the utility model.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a high-pressure inlet pipe bus; 2. a first capacitor stage; 3. a grading ring; 4. an interlayer insulator; 5. a second capacitor stage; 6. a third capacitor stage; 7. a low-pressure outlet pipe nut; 8. a base insulator; 9. a capacitor unit.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

In the description of the present invention, it is to be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the system or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1, 2, 3 and 4, a high-capacity high-anti-seismic capacitor device includes base insulators 8, and the base insulators 8 are installed according to actual requirements, and generally have multiple sets of base insulators 8. The base insulator 8 adopts an epoxy solid core rod pillar composite insulator, so that the insulating property of the capacitor device can be improved, and the shock resistance of the capacitor device can be effectively improved.

The third capacitor rack 6 is supported on the base insulator 8, the second capacitor rack 5 is supported on the third capacitor rack 6, the first capacitor rack 2 is supported on the second capacitor rack 5, the high-voltage incoming line pipe bus 1 is also supported on the first capacitor rack 2, the equalizing rings 3 are arranged on the first capacitor rack 2 at intervals, and the equalizing rings 3 are selectively installed on the outer side of the first capacitor rack 2 according to actual demands so as to achieve the purpose of equalizing the voltage of each annular part.

Be provided with 1 layer to 2 layers of third capacitor rack 6 on the base insulator 8, support on the third capacitor rack 6 and have 2 layers to 20 layers of second capacitor rack 5, support on the second capacitor rack 5 and have 2 layers to 70 layers of first capacitor rack 2, the number of piles of each capacitor rack is decided according to capacitor device's capacity, and the different numbers of piles of capacity correspondence of difference.

Capacitor units 9 are mounted on the first capacitor rack 2, the second capacitor rack 5 and the third capacitor rack 6, wherein the first capacitor rack 2, the second capacitor rack 5 and the third capacitor rack 6 are similar in structure, and the difference is that different mounting portions for mounting the interlayer insulators 4 are arranged at the end portions of the capacitor racks. In some embodiments, 4 to 20 capacitor units 9 are disposed on each of the first, second, and third capacitor stages 2, 5, and 6, an even number of the capacitor units 9 are divided into two groups, and two groups of the capacitor units 9 are disposed on each of the first, second, and third capacitor stages 2, 5, and 6. After being connected in series with each capacitor unit 9, the high-voltage inlet pipe busbar 1 is connected with a low-voltage outlet pipe busbar 7 arranged on a third capacitor rack 6, and in the embodiment, the high-voltage inlet pipe busbar 1 is installed with the first capacitor rack 2 on the top layer through an interlayer insulator 4.

And an interlayer insulator 4 is arranged between every two adjacent layers of capacitor racks, and the interlayer insulator 4 is an epoxy solid core rod post composite insulator. The included angle of the interlayer insulators 4 at two ends between the first layer close to the base insulator 8 and the third layer of the capacitor rack relative to the horizontal plane is 60-90 degrees, and other interlayer insulators 4 are vertically connected.

Example one

The high-voltage direct-current filter capacitor device for the +/-800 kV extra-high voltage direct-current transmission project of the high-capacity high-anti-seismic capacitor device is characterized in that the model of the capacitor device is TDL1545-1-W, the single-tower capacity is 750Mvar, the seismic intensity requirement is 9 grades, and each group of direct-current filter capacitor devices are arranged in a single tower.

Capacitor device is from supreme installing base insulator 8 earlier down, totally 6 departments, and two base insulators 8 of every department pass through shaped steel and connect, install 1 layer of third capacitor rack 6 on base insulator 8, later install 2 layers of second capacitor rack 5, install 25 layers of first capacitor rack 2 again.

The two-layer capacitor rack is fixedly connected through interlayer insulators 4, wherein the interlayer insulators 4 close to four corners of a 1 st-3 rd layer capacitor bank of the base insulator 8 are arranged by being inclined by 80 degrees relative to a horizontal plane, the interlayer insulators 4 at two middle positions are arranged perpendicular to the horizontal plane, and the base insulator 8 and the interlayer insulators 4 are epoxy solid core rod support composite insulators. 6 interlayer insulators 4 on the 4 th to 28 th layers are arranged vertically and horizontally. The grading rings 3 are mounted on the first capacitor stages 2 of the 6 th, 9 th, 12 th, 15 th, 17 th, 19 th, 21 th, 23 th, 24 th, 25 th, 26 th, 27 th, 28 th layers, respectively. The high-voltage inlet pipe bus 1 is structurally installed with the top capacitor bank through the interlayer insulator 4, the single-tower arrangement occupies less space, and the cost is relatively low.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (8)

1. The utility model provides a high antidetonation capacitor device of large capacity which characterized in that: the high-voltage capacitor type capacitor box comprises a base insulator (8), wherein a third capacitor rack (6) is supported on the base insulator (8), a second capacitor rack (5) is supported on the third capacitor rack (6), a first capacitor rack (2) is supported on the second capacitor rack (5), and a high-voltage incoming pipe bus (1) is also supported on the first capacitor rack (2);

first capacitor rack (2), second capacitor rack (5) with all install capacitor unit (9) on third capacitor rack (6), high-pressure inlet pipe is female (1) and each capacitor unit (9) establish ties the back, with set up and be in female (7) of the low pressure outlet pipe on third capacitor rack (6) is connected.

2. High anti-seismic capacitor device of high capacity of claim 1, characterized in that: and an interlayer insulator (4) is arranged between every two adjacent layers of capacitor racks.

3. High anti-seismic capacitor device of high capacity of claim 2, characterized in that: equalizing rings (3) are arranged on the first capacitor rack (2) at intervals.

4. A large capacity high anti-seismic capacitor device according to any one of claims 2 to 3, characterized in that: the included angle of the interlayer insulators (4) close to the two ends between the first layer of the base insulator (8) and the third layer of the capacitor rack relative to the horizontal plane is 60-90 degrees.

5. High anti-seismic capacitor device of high capacity of claim 4, characterized in that: be provided with 1 layer to 2 on base insulator (8) third capacitor rack (6), it has 2 layers to 20 to support on third capacitor rack (6) second capacitor rack (5), it has 2 layers to 70 to support on second capacitor rack (5) first capacitor rack (2).

6. High anti-seismic capacitor device of high capacity of claim 5, characterized in that: the first capacitor rack (2), the second capacitor rack (5) and the third capacitor rack (6) are all provided with 4 to 20 capacitor units (9).

7. High anti-seismic capacitor device of high capacity of claim 6, characterized in that: the first capacitor rack (2), the second capacitor rack (5) and the third capacitor rack (6) are all provided with two groups of capacitor units (9).

8. High anti-seismic capacitor device of high capacity of claim 4, characterized in that: the base insulator (8) and the interlayer insulator (4) both adopt epoxy solid core rod pillar composite insulators.

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