CN214706802U - Gas insulated cabinet heat dissipation device and heat dissipation system for gas insulated cabinet - Google Patents

Abstract

The utility model discloses a gas insulated cabinet heat abstractor and a heat dissipation system for the gas insulated cabinet, the gas insulated cabinet heat abstractor is arranged on a gas box of the gas insulated cabinet, a plurality of strengthening ribs are arranged inside the gas box, the strengthening ribs are of tubular structures, and the strengthening ribs are connected in series and communicated through a pipeline assembly to form a fluid circulation heat dissipation structure; and the two ports of the fluid circulation heat dissipation structure are respectively provided with a fluid outlet pipe fitting and a fluid inlet pipe fitting. A cooling system for gas insulated cabinet, including a plurality of gas tanks, all be provided with heat abstractor on a plurality of gas tanks, it is a plurality of fluid circulation heat radiation structure on the gas tank is through the interbox connecting pipe spare intercommunication. The utility model discloses an inside pipeline of gas tank has the strengthening rib effect concurrently, can reduce this heat abstractor's cost. Through the utility model discloses a heat abstractor does not influence the gas tank leakproofness, does not increase under the more cost's the condition, has improved gas insulated switchgear's radiating efficiency greatly.

Description

Gas insulated cabinet heat dissipation device and heat dissipation system for gas insulated cabinet

Technical Field

The utility model relates to a gas insulated cabinet heat abstractor and be used for gas insulated cabinet's cooling system especially relate to a gas insulated cabinet heat abstractor with cryogenic fluid circulation radiating and be used for gas insulated cabinet's cooling system, belong to switchgear heat dissipation technical field.

Background

The gas insulated switchgear has the advantages of miniaturization, maintenance-free, small influence from external environment and the like, but due to the sealing characteristic of the gas insulated switchgear, gas cannot be in convection with external air, the heat dissipation design is a big difficulty, and temperature rise control is a bottleneck restricting the development of the gas insulated switchgear. The temperature rise problem of the equipment can cause misoperation of the equipment, parts are aged and damaged in advance, even main insulation breakdown occurs, and the safety and reliability of power utilization are reduced seriously, so that the reasonable and efficient heat dissipation design is particularly important.

Technical schemes of increasing heat conduction efficiency and radiation are mostly adopted in the prior art, such as conductor silver plating, conductor section area increase, radiating fin increase and the like belong to the category of heat transfer efficiency increase; the conductors and the cabinet body are uniformly sprayed with black and other heat dissipation coatings, which are used for increasing the radiation coefficient of the metal surface so as to improve the radiation efficiency. However, the heat dissipation effect is not good enough, the heat dissipation speed is not fast enough, and the cost is increased more.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: how to improve the heat dissipation effect of the gas insulated switchgear.

In order to solve the technical problem, the technical solution of the present invention is to provide a heat dissipation device for a gas insulated switchgear, which is disposed on a gas tank of the gas insulated switchgear, wherein a plurality of reinforcing ribs are disposed inside the gas tank, and the heat dissipation device is characterized in that the reinforcing ribs are tubular structures, and the plurality of reinforcing ribs are connected in series and communicated through a pipeline assembly to form a fluid circulation heat dissipation structure; and the two ports of the fluid circulation heat dissipation structure are respectively provided with a fluid outlet pipe fitting and a fluid inlet pipe fitting.

Preferably, the plurality of reinforcing ribs are provided on an inner wall of the air tank, and a fluid circulation passage is provided inside the reinforcing ribs.

Preferably, the plurality of reinforcing ribs are arranged on the inner walls of the opposite sides of the air box, the pipeline assembly comprises a communicating pipe fitting between the profiles and a communicating pipe fitting between the left side plate and the right side plate, the reinforcing ribs arranged on the same side of the air box are communicated through the communicating pipe fitting between the profiles, and the reinforcing ribs arranged on different sides of the air box are communicated through the communicating pipe fitting between the left side plate and the right side plate.

Preferably, the length of the reinforcing rib is greater than the height of the air box, and the upper end and the lower end of the reinforcing rib penetrate through the outer wall of the air box respectively.

Preferably, the reinforcing rib is connected with the outer side wall of the air box in a sealing mode through a sealing device.

Preferably, the fluid outlet pipe fitting, the fluid inlet pipe fitting and the pipeline assembly communicated with each reinforcing rib are arranged on the outer side of the air box.

The utility model provides a cooling system for gas insulated switchgear, includes a plurality of gas tanks, its characterized in that, all be provided with heat abstractor on a plurality of gas tanks, it is a plurality of fluid circulation heat radiation structure on the gas tank is through the connecting tube intercommunication between the case.

Preferably, a plurality of said gas boxes are arranged in the same gas-insulated cabinet or in a plurality of gas-insulated cabinets.

Preferably, the fluid outlet pipe on each air box is communicated with the fluid inlet pipe on the other air box through an inter-box connecting pipe; the whole heat dissipation system has only one outlet and one inlet.

Preferably, the plurality of air boxes is at least two.

The utility model discloses utilize the inside current lateral wall strengthening rib of gas tank to connect as the pipeline and with each pipeline through outside connection pipe fitting, make it form an outside circulation cooling system that can pass through the cryogenic fluid circulation, derive gas tank and the inside heat of gas tank fast.

The utility model discloses still usable case is connected the pipe fitting and is communicate the fluid circulation heat radiation structure of each gas tank between the case, makes gas insulation equipment room form one can be through the circulation heat dissipation network of cryogenic fluid circulation, derives each gas tank and the inside heat of gas tank fast.

The utility model discloses an inside pipeline of gas tank has the strengthening rib effect concurrently, can reduce this heat abstractor's cost. Through the utility model discloses a device is not influencing the gas tank leakproofness, does not increase under the more condition of cost, has improved gas insulated switchgear's radiating efficiency greatly.

Drawings

FIG. 1 is a schematic structural diagram of a heat dissipation device of a gas insulated cabinet (a single gas box);

FIG. 2 is a schematic diagram of a fluid circulation heat dissipation structure for a single pipeline;

FIG. 3 is an enlarged view of a portion of the standard profile tube of FIG. 1 at the weld at location A;

FIG. 4 is an enlarged view of a portion of the standard profile piping of FIG. 1 at the weld at location B;

FIG. 5 is a schematic diagram of the heat dissipation of the fluid circulating heat dissipation structure in a single air tank;

FIG. 6 is a piping diagram of a fluid circulation heat dissipation structure in a single air tank;

FIG. 7 is a schematic view of a multi-pipeline fluid circulation heat dissipation structure;

fig. 8 is a schematic view of a fluid circulation heat dissipation structure in a plurality of air tanks.

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

Example 1

The utility model provides a gas insulated cabinet heat abstractor dispels the heat with low temperature gas or liquid circulation, as shown in fig. 1, sets up on gas tank 1 of gas insulated cabinet, the utility model discloses a welded fluid circulation heat radiation structure 2 is gone up to gas tank 1.

As shown in fig. 2, the fluid circulation heat dissipation structure 2 includes a pipe 201, a fluid outlet pipe 202 fixedly mounted on the standard section bar, an inter-section bar conduction pipe 203, a left and right side plate conduction pipe 204, and a fluid inlet pipe 205 fixedly mounted on the standard section bar;

the pipeline 201 is a standard section pipeline, and the size is preferably 40mm by 20 mm;

the standard section pipes 201 are uniformly distributed and welded on the inner wall of the gas tank 1, and are formed by modifying reinforcing ribs arranged in the gas tank 1, namely, the standard section pipes are used as fluid circulation passages and also have the function of the reinforcing ribs, the fixed welding is shown in a partial enlarged view 3 and a partial enlarged view 4, the length of the standard section pipes 201 is slightly larger than the height of the gas tank 1, and the upper side and the lower side of each standard section pipe 201 penetrate through the gas tank 1 by about 25 mm. All the standard section pipes 201 are connected in series and communicated with each other outside the air tank 1 through pipes to form a fluid circulation heat dissipation structure 2, and a fluid outlet pipe 202 and a fluid inlet pipe 205 are respectively arranged on two ports of the fluid circulation heat dissipation structure 2.

In this embodiment, a plurality of standard profile pipelines 201 are respectively arranged on the inner walls of two sides of the gas tank 1, the pipe fittings communicated with the standard profile pipelines 201 on the same side of the gas tank 1 are conduction pipe fittings 203 between profiles, and the pipe fittings communicated with the reinforcing ribs between two sides of the gas tank 1 are conduction pipe fittings 204 between the left side plate and the right side plate.

As shown in fig. 1 and 2, the fluid outlet pipe 202, the fluid inlet pipe 205, the inter-sectional material conduit 203, and the left and right inter-side plate conduit 204 are disposed outside the gas tank 1.

In this embodiment, the fluid outlet pipe 202 and the fluid inlet pipe 205 are respectively disposed above the outer side of the gas tank 1; the fluid outlet pipe 202 and the fluid inlet pipe 205 are disposed above the opposite side of the gas tank 1 to the left and right side plates of the communicating pipe 204, and the fluid outlet pipe 202 and the fluid inlet pipe 205 may be disposed below the outside of the gas tank 1 or at other positions outside the gas tank 1.

In this embodiment, the fluid circulation heat dissipation structure 2 uses a single circulation according to actual needs.

The utility model discloses a when the device uses, the fluid supply device who is connected with fluid inlet pipe fitting 205 releases low-temperature fluid, and low-temperature fluid gets into fluid circulation heat abstractor 2 through fluid inlet pipe fitting 205, leads to pipe fitting 204 between conduction pipe fitting 203, left and right sides between standard section bar pipeline 201, section bar, flows out from fluid outlet pipe fitting 202, as shown in figure 6. Meanwhile, since the pipe 201 is fixed on the inner wall of the gas tank 1, the heat in the gas tank 1 is transferred to the sidewall of the gas tank 1 through the pipe 201 and is released outside the sidewall of the gas tank 1, as shown in fig. 5. Namely, a part of heat in the air box 1 can be radiated through the reinforcing ribs on the side wall of the air box 1, and the other part of heat can be subjected to heat exchange through the pipeline arranged outside the air box 1.

Example 2

In the embodiment, a fluid circulation heat dissipation system for a gas insulation cabinet is disclosed, wherein the system comprises a plurality of gas boxes 1, the heat dissipation devices disclosed in the first embodiment are arranged on the plurality of gas boxes, and fluid circulation heat dissipation structures 2 on the plurality of gas boxes can be communicated to form a fluid circulation heat dissipation network according to actual needs.

Wherein, a plurality of gas tanks 1 in the fluid circulation heat dissipation network can be located in the same gas insulation cabinet, and can also be distributed in different gas insulation cabinets.

As shown in fig. 7 and 8, the fluid circulation heat dissipation structures 2 of at least two air tanks 1 (in this embodiment, 3 air tanks 1 are arranged side by side) are connected in series via an inter-tank connection pipe 3. Namely, in any two air tanks 1, the fluid outlet pipe fittings on one air tank 1 are communicated with the fluid inlet pipe fittings on the other air tank 1 through the inter-tank connecting pipe fittings 3, and the formed fluid circulation heat dissipation network comprises a fluid inlet and a fluid outlet.

The fluid circulation heat dissipation structures 2 on the two adjacent gas tanks 1 are communicated by utilizing the inter-tank connecting pipe fittings 3, so that an external circulation heat dissipation network which can circulate through low-temperature fluid is formed between the gas insulation equipment, the heat in the gas tanks 1 and the heat in the gas tanks 1 are rapidly led out, and the heat dissipation efficiency of the gas insulation switch equipment is greatly improved under the condition that the tightness of the gas tanks 1 is not influenced.

The rest is the same as in example 1.

Claims (10)

1. A heat dissipation device of a gas insulated cabinet is arranged on a gas box (1) of the gas insulated cabinet, and a plurality of reinforcing ribs are arranged in the gas box (1), and is characterized in that the reinforcing ribs are of tubular structures and are communicated in series through pipeline assemblies to form a fluid circulation heat dissipation structure (2); two ports of the fluid circulation heat dissipation structure (2) are respectively provided with a fluid outlet pipe fitting (202) and a fluid inlet pipe fitting (205).

2. The gas insulated cabinet heat sink according to claim 1, wherein the plurality of ribs are provided on the inner wall of the gas tank (1), and a fluid circulation path is provided inside the ribs.

3. The heat sink for gas insulated cabinets of claim 1, wherein the plurality of ribs are disposed on the inner wall of the opposite side of the gas tank (1), the pipe assembly comprises an inter-profile communication pipe (203), a left and right inter-side plate communication pipe (204), the ribs disposed on the same side of the gas tank (1) are communicated through the inter-profile communication pipe (203), and the ribs disposed on different sides of the gas tank (1) are communicated through the left and right inter-side plate communication pipe (204).

4. The heat sink for gas insulated cabinets of claim 1, wherein the length of the reinforcing rib is greater than the height of the gas box (1), and the upper and lower ends of the reinforcing rib respectively penetrate through the outer wall of the gas box (1).

5. The gas insulated cabinet heat sink according to claim 4, characterized in that the stiffener is sealingly connected to the outer side wall of the gas box (1) by sealing means.

6. The gas insulated cabinet heat sink according to claim 1, wherein the fluid outlet pipe (202), the fluid inlet pipe (205), and the pipe assembly connecting the respective ribs are disposed outside the gas tank (1).

7. A heat dissipation system for a gas insulated cabinet, comprising a plurality of gas boxes (1), characterized in that the plurality of gas boxes (1) are provided with a heat dissipation device according to any one of claims 1-6, and the fluid circulation heat dissipation structures (2) on the plurality of gas boxes (1) are communicated through inter-box connection pipes (3).

8. A heat dissipation system for a gas-insulated cabinet according to claim 7, characterized in that a plurality of the gas boxes (1) are arranged in the same gas-insulated cabinet or in a plurality of gas-insulated cabinets.

9. A heat dissipation system for gas-insulated cabinets according to claim 7, characterized in that the fluid outlet pipe (202) of each of said air boxes (1) is connected to the fluid inlet pipe (205) of the other air box (1) by means of an inter-box connecting pipe (3), and the fluid circulation heat dissipation network formed by a plurality of said fluid circulation heat dissipation structures (2) comprises a fluid inlet and a fluid outlet.

10. A heat dissipation system for a gas-insulated switchgear, as claimed in claim 7, wherein the number of gas boxes (1) is at least two.

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