Aluminum tube radiator of medium-voltage C-GIS inflation switch cabinet

Abstract

The utility model discloses an aluminum tube radiator for a medium-voltage C-GIS (Gas Insulated Switchgear) gas-filled switch cabinet, which comprises an aluminum tube positioned on the outer side of a gas tank of the medium-voltage C-GIS gas-filled switch cabinet, a radiating channel is formed in an inner cavity of the aluminum tube, two ends of the radiating channel are respectively provided with a gas inlet and a gas outlet which are communicated with the gas tank, the gas inlet is positioned above the gas outlet, and the gas outlet is positioned above the gas outlet. The heat dissipation channel comprises an ascending channel and a descending channel, the lower end of the ascending channel is communicated with the air inlet, the upper end of the ascending channel extends upwards and is communicated with the upper end of the descending channel, and the lower end of the descending channel extends downwards and is communicated with the air outlet, so that hot airflow entering from the air inlet ascends and cools along the ascending channel and descends along the descending channel; and the air flows out from the air outlet. According to the utility model, by improving the structure and the material of the radiator, the heat radiation effect and the heat radiation efficiency of the radiator are improved, and the temperature rise problem of a large-current product of the medium-voltage C-GIS inflation switch cabinet is effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of switch cabinets, in particular to an aluminum tube radiator for a medium-voltage C-GIS gas-insulated switch cabinet. Background Art

[0002] Most of the main circuits of the existing 40.5KV C-GIS gas-insulated switch cabinets in the market are arranged in stainless steel gas boxes. However, the thermal conductivity of stainless steel is too small and the heat dissipation is poor, resulting in very poor heat dissipation of the main circuits with large currents of 2000A and above. Especially for 3150A * 1.1 times, it is very difficult to meet the temperature rise requirements of the GB / T 3906 standard. To solve the above problems, the Chinese utility model patent with the authorization announcement number CN216390224U discloses a 10kV environmental protection gas-insulated switch cabinet internal and external circulation heat dissipation system, including two radiators connected to the gas box inside the switch cabinet. One radiator is installed on the top surface of the switch cabinet, and the other radiator is installed on the side wall of the switch cabinet. The radiator can increase the heat dissipation area of the gas box, and the heat dissipation fins on the radiator facilitate the upward heat dissipation of the hot air flow, improving the heat dissipation efficiency of the switch cabinet. However, the radiator area of this heat dissipation system is limited, resulting in low heat dissipation efficiency of the gas box, and the gas after heat exchange at the radiator will intersect with the hot gas flowing from the gas box to the radiator, thereby reducing the speed of the hot gas flowing from the gas box to the radiator. Summary of the Utility Model

[0003] Aiming at the technical problems existing in the prior art, the utility model provides an aluminum tube radiator for a medium-voltage C-GIS gas-insulated switch cabinet. By improving the structure and material of the radiator, the heat dissipation effect and heat dissipation efficiency of the radiator are improved, and the temperature rise problem of large-current products of medium-voltage C-GIS gas-insulated switch cabinets can be effectively solved.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an aluminum tube radiator for a medium-voltage C-GIS gas-insulated switch cabinet, including an aluminum tube located outside the gas box of the medium-voltage C-GIS gas-insulated switch cabinet. The inner cavity of the aluminum tube forms a heat dissipation channel. Both ends of the heat dissipation channel are respectively provided with an air inlet and an air outlet communicating with the gas box, and the air inlet is located above the air outlet. The heat dissipation channel includes an ascending channel and a descending channel. The lower end of the ascending channel communicates with the air inlet, the upper end of the ascending channel extends upward and communicates with the upper end of the descending channel, and the lower end of the descending channel extends downward and communicates with the air outlet, so that the hot air flow entering from the air inlet rises along the ascending channel for cooling and descends along the descending channel and flows out from the air outlet.

[0005] Further, the number of the aluminum tubes is multiple, and the multiple aluminum tubes are arranged side by side in the horizontal direction.

[0006] Further, it further includes a mounting plate, and the multiple aluminum tubes are respectively installed on the mounting plate.

[0007] Further, the mounting plate is provided with avoidance openings corresponding one by one to the air inlet and the air outlet, and the air inlet and the air outlet are respectively fitted in the corresponding avoidance openings.

[0008] Further, one end of the aluminum tube provided with the air inlet and the other end provided with the air outlet are respectively welded and fixed to the corresponding avoidance openings and are hermetically fitted.

[0009] Further, the multiple aluminum tubes are connected by at least one reinforcing member; the reinforcing member is welded and fixed to the aluminum tube.

[0010] Further, the reinforcing member is a strip-shaped reinforcing rib, and the reinforcing rib extends along the arrangement direction of the multiple aluminum tubes and is connected to the outer side of the rising channels of the multiple aluminum tubes and / or is connected to the outer side of the descending channels of the multiple aluminum tubes.

[0011] Further, the descending channel includes an upper channel and a lower channel which are vertically distributed and communicated with each other. The upper end of the upper channel is communicated with the upper end of the rising channel, and the two form an inverted U shape; the lower channel is an inclined channel or an arc-shaped channel, and its lower end is communicated with the air outlet.

[0012] Further, the material of the aluminum tube is aluminum alloy.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model is provided with a heat dissipation channel in the aluminum tube, so that the hot air flow can enter the heat dissipation channel from the air inlet to exchange heat with the cold air outside, and then flow out from the air outlet after being cooled, thereby achieving the heat dissipation effect. Moreover, the air inlet is arranged above the air outlet, which can avoid the problem that the gas after heat exchange at the radiator meets the hot gas flowing to the radiator, improving the heat dissipation efficiency. And by setting the rising channel and the descending channel, the distance of the heat dissipation channel can be increased without increasing the volume of the aluminum tube, thereby increasing the cooling time of the hot air flow, enabling the hot air flow to fully exchange heat with the cold air outside, and greatly enhancing the heat dissipation effect.

[0015] 2. In the utility model, the number of aluminum tubes is multiple, and the multiple aluminum tubes are arranged side by side in the horizontal direction, thereby increasing the heat dissipation area of the radiator and improving the heat dissipation efficiency.

[0016] 3. The utility model further includes a mounting plate, and the multiple aluminum tubes are respectively mounted on the mounting plate, thereby facilitating the installation or disassembly of the radiator, reducing the parts for disassembly and assembly, and reducing the labor intensity of the operator.

[0017] 4. In the present utility model, multiple aluminum tubes are connected by at least one reinforcing member to increase the stability and safety of the radiator.

[0018] 5. In the present utility model, the material of the aluminum tube is aluminum alloy, which has good material strength and can improve the heat exchange efficiency of the hot air flow with the external cold air in the heat dissipation channel through the high thermal conductivity of the metal.

[0019] The present utility model will be further described in detail below in conjunction with the drawings and embodiments; however, the aluminum tube radiator of a medium-voltage C-GIS gas-insulated switchgear in the present utility model is not limited to the embodiments. Description of the Drawings

[0020] Figure 1 is a three-dimensional structural schematic diagram of the radiator of the present utility model;

[0021] Figure 2 is a three-dimensional structural schematic diagram of the radiator of the present utility model (rotated by an angle);

[0022] Figure 3 is a cross-sectional schematic diagram of the radiator of the present utility model;

[0023] Figure 4 is a cross-sectional schematic diagram of the aluminum tube of the present utility model;

[0024] Figure 5 is a three-dimensional structural schematic diagram of the gas box of the present utility model;

[0025] Figure 6 is a cross-sectional schematic diagram of the gas box of the present utility model;

[0026] In the figure: 1, aluminum tube; 11, air inlet; 12, air outlet; 13, rising channel; 14, descending channel; 141, upper channel; 142, lower channel; 2, mounting plate; 21 / 22, avoidance opening; 3, reinforcing rib; 4, gas box; 41, rear side wall. Detailed Embodiment

[0027] In the present utility model, for the description, the orientation or positional relationship indicated by "front", "rear", "inner", "outer", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present utility model. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In addition, in the description of the present utility model, unless otherwise specified, "a plurality of" means two or more. "And / or" describes the relationship between associated objects and indicates that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates an "or" relationship between the associated objects before and after. In the description of the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "provided with", "equipped with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection, can be a mechanical connection, an electrical connection, can be directly connected, or can be indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Please refer to Figures 1-6 As shown, an aluminum tube radiator for a medium-voltage C-GIS gas-insulated switchgear of the present utility model includes an aluminum tube 1 located outside the gas tank 4 of the medium-voltage C-GIS gas-insulated switchgear. A heat dissipation channel is provided inside the inner cavity of the aluminum tube 1. Specifically, the cross-section of the heat dissipation channel is circular. An air inlet 11 and an air outlet 12 communicating with the gas tank 4 are respectively provided at both ends of the heat dissipation channel, and the air inlet 11 is located above the air outlet 12. The heat dissipation channel includes a rising channel 13 and a falling channel 14. The lower end of the rising channel 13 communicates with the air inlet 11. The upper end of the rising channel 13 extends upward and communicates with the upper end of the falling channel 14. The lower end of the falling channel 14 extends downward and communicates with the air outlet 12, so that the hot air flow entering from the air inlet 11 rises along the rising channel 13 for cooling and then falls along the falling channel 14 and flows out from the air outlet 12. Under the pressure difference generated by the hot and cold gases, an internal circulation of gas flow is formed inside the gas tank 4, and the heat of the hot gas is discharged outside the gas tank 4 (heat external circulation) through the conduction of the aluminum tube 1, thereby achieving the heat dissipation effect.

[0030] In this embodiment, the falling channel 14 includes an upper channel 141 and a lower channel 142 that are vertically distributed and communicate with each other. The upper end of the upper channel 141 communicates with the upper end of the rising channel 13, and the two form an inverted U shape. The lower channel 142 is an inclined channel, and its lower end communicates with the air outlet 12. In other embodiments, the lower channel 142 can be an arc-shaped channel.

[0031] The number of aluminum tubes 1 is multiple, and the multiple aluminum tubes 1 are arranged side by side in the horizontal direction, thereby increasing the heat dissipation area of the radiator and improving the heat dissipation efficiency. In this embodiment, the number of aluminum tubes 1 is eight, but it is not limited thereto.

[0032] The present utility model further includes a mounting plate 2, and a plurality of aluminum tubes 1 are respectively mounted on the mounting plate 2, so that the radiator can be conveniently installed or disassembled, reducing the parts for disassembly and assembly and lowering the labor intensity of the operator. The mounting plate 2 is provided with avoidance openings 21 and 22 corresponding one by one to the air inlet 11 and the air outlet 12, and the air inlet 11 and the air outlet 12 are respectively fitted in the corresponding avoidance openings 21 and 22. Specifically, one end of the aluminum tube 1 provided with the air inlet 11 and the other end provided with the air outlet 12 are respectively welded and fixed to the corresponding avoidance openings 21 and 22 and are hermetically fitted.

[0033] In this embodiment, a plurality of aluminum tubes 1 are connected by three reinforcing members, and the reinforcing members are welded and fixed to the aluminum tubes 1 to increase the stability and safety of the radiator. Specifically, the reinforcing members are strip-shaped reinforcing ribs 3, and the reinforcing ribs 3 extend along the arrangement direction of the plurality of aluminum tubes 1. And the three reinforcing ribs 3 are respectively connected to the outer sides of the ascending channels 13, the upper channels 141 and the lower channels 142 of the plurality of aluminum tubes 1.

[0034] Preferably, the material of the aluminum tube 1 is aluminum alloy, which has better material strength and can improve the heat exchange efficiency of the hot air flow between the heat dissipation channels and the external cold air through the high thermal conductivity of the metal.

[0035] A plurality of aluminum tubes 1 are mounted on the rear side wall 41 of the air box 4 through the mounting plate 2, and the air inlet 11 is located at the top of the rear side wall 41 of the air box 4.

[0036] For an aluminum tube radiator of a medium-voltage C-GIS gas-insulated switchgear of the present utility model, its principle is as Figure 6 shown. The hot air flow generated in the air box 4 flows upward, enters the ascending channel 13 of the heat dissipation channel from the air inlet 11 of the aluminum tube 1, rises along the ascending channel 13, and descends along the descending channel 14. After the hot air flow fully exchanges heat with the cold air outside the air box 4, it becomes cold air flow and flows back into the air box 4 from the air outlet 12, thereby forming a circulation of the air flow in the air box 4 and conducting the heat to the outside of the air box 4, greatly enhancing the heat dissipation effect.

[0037] For an aluminum tube radiator of a medium-voltage C-GIS gas-insulated switchgear of the present utility model, the hot air flow can enter the heat dissipation channel from the air inlet 11 to exchange heat with the external cold air, and then flow out from the air outlet 12 after cooling, thereby achieving the heat dissipation effect. And the air inlet 11 is arranged above the air outlet 12, which can avoid the problem of the gas after heat exchange at the radiator intersecting with the hot gas flowing to the radiator, improving the heat dissipation efficiency. And the ascending channel 13 and the descending channel 14 are provided, which can increase the distance of the heat dissipation channel without increasing the volume of the aluminum tube 1, thereby increasing the cooling time of the hot air flow and enabling the hot air flow to fully exchange heat with the external cold air, greatly enhancing the heat dissipation effect.

[0038] An aluminum tube radiator for a medium-voltage C-GIS gas-insulated switchgear of the present utility model, the parts not involved are the same as or can be implemented by the prior art.

[0039] The above embodiments are only used to further illustrate an aluminum tube radiator for a medium-voltage C-GIS gas-insulated switchgear of the present utility model, but the present utility model is not limited to the embodiments. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model all fall within the protection scope of the technical solution of the present utility model.

Claims

1. A medium-voltage C-GIS gas-filled switch cabinet aluminum tube radiator, comprising an aluminum tube located outside the gas box of the medium-voltage C-GIS gas-filled switch cabinet, the inner cavity of the aluminum tube forms a heat dissipation channel, and the two ends of the heat dissipation channel are respectively provided with an air inlet and an air outlet connected to the gas box, and the air inlet is located above the air outlet, characterized in that: The heat dissipation channel includes an ascending channel and a descending channel, the lower end of the ascending channel is connected to the air inlet, the upper end of the ascending channel extends upward and is connected to the upper end of the descending channel, and the lower end of the descending channel extends downward and is connected to the air outlet, so that the hot air flow entering from the air inlet rises and cools along the ascending channel, descends along the descending channel, and flows out from the air outlet.

2. The aluminum tube radiator for medium voltage C-GIS gas-filled switch cabinet according to claim 1 is characterized in that: There are multiple aluminum tubes, and the multiple aluminum tubes are arranged side by side in the horizontal direction.

3. The aluminum tube radiator for medium voltage C-GIS gas-filled switch cabinet according to claim 2 is characterized in that: It also includes a mounting plate, and the plurality of aluminum tubes are respectively mounted on the mounting plate.

4. The aluminum tube radiator for medium voltage C-GIS gas-filled switch cabinet according to claim 3 is characterized in that: The mounting plate is provided with avoidance openings corresponding to the air inlet and the air outlet one by one, and the air inlet and the air outlet are respectively matched in the corresponding avoidance openings.

5. The aluminum tube radiator for medium voltage C-GIS gas-filled switch cabinet according to claim 4 is characterized in that: One end of the aluminum tube provided with the air inlet and the other end provided with the air outlet are respectively welded and fixed to the corresponding avoidance openings and are sealed.

6. The aluminum tube radiator for medium voltage C-GIS gas-filled switch cabinet according to any one of claims 2 to 5, characterized in that: The plurality of aluminum tubes are connected by at least one reinforcement member; the reinforcement member is fixed to the aluminum tube by welding.

7. The aluminum tube radiator for medium voltage C-GIS gas-filled switch cabinet according to claim 6 is characterized in that: The reinforcement member is a long strip-shaped reinforcement rib, which extends along the arrangement direction of the multiple aluminum tubes and is connected to the outside of the ascending channels of the multiple aluminum tubes and / or connected to the outside of the descending channels of the multiple aluminum tubes.

8. The aluminum tube radiator for medium voltage C-GIS gas-filled switch cabinet according to claim 1 is characterized in that: The descending channel includes an upper channel and a lower channel which are distributed and connected up and down, the upper end of the upper channel is connected to the upper end of the ascending channel, and the two form an inverted U shape; the lower channel is an inclined channel or an arc channel, and its lower end is connected to the air outlet.

9. The aluminum tube radiator for medium voltage C-GIS gas-filled switch cabinet according to claim 1 is characterized in that: The material of the aluminum tube is aluminum alloy.

Images