A cooling system for box-type substation and box-type substation

Abstract

The present invention provides a cooling system and a box-type substation for a box-type substation, which belong to the technical field of electric power facilities, and include: a liquid storage tank for storing coolant, an external output channel connected to the liquid storage tank and used to transport the coolant to the box-type substation, and an external recovery channel for recovering the coolant; the cooling system also includes an internal output channel and an internal output pump for transporting the coolant to the internal output channel, and a liquid tank cooling channel is arranged outside the liquid storage tank, and the liquid tank cooling channel is used to transport the coolant to the outside of the liquid storage tank to reduce the temperature of the space where the liquid storage tank is located; using such a cooling system and a box-type substation for a box-type substation, the temperature of the surface of the box-type substation is reduced by spraying coolant to the box-type substation so that the coolant evaporates on the outer surface of the box-type substation. The internal output channel can discharge coolant to the nearby soil to increase soil moisture, reduce the temperature and improve the heat dissipation efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric power facilities, and more specifically relates to a cooling system for a box-type substation and a box-type substation. Background Art

[0002] Box-type substation is a closed device that integrates substation equipment, control equipment and distribution equipment, usually consisting of a box. Box-type substation is usually used in power distribution systems in cities, industrial and mining enterprises, rural areas and other areas, with the characteristics of compact structure and easy installation.

[0003] However, most box-type substations are used in outdoor environments. In some areas, the temperature is high, the sunlight is strong, and the sunshine time is long. Long-term and high-intensity sunshine can quickly increase the temperature of the box-type substation shell, and the temperature inside the box-type substation also increases accordingly. The substation equipment inside the box-type substation is easily affected by high temperature and malfunctions. Summary of the invention

[0004] Based on this, an object of the present invention is to provide a cooling system for a box-type substation, the cooling system comprising: a liquid storage tank for storing coolant, an external output channel connected to the liquid storage tank and used to transport the coolant to the box-type substation, and an external recovery channel for recovering the coolant;

[0005] The external output channel is connected to an external output pump, and the external output pump is used to transport the coolant in the liquid storage tank to the external output channel; the cooling system also includes a cooling component, the external recovery channel is connected to the cooling component, the cooling component is connected to the liquid storage tank through a pipeline, and the cooling component is used to reduce the coolant input by the external recovery pipeline and transport the cooled coolant to the liquid storage tank;

[0006] The cooling system also includes an internal output channel and an internal output pump for transporting coolant to the internal output channel. The liquid tank cooling channel is connected to the internal output channel. The internal output channel is connected to the liquid storage tank. The internal output pump can transport the coolant inside the liquid storage tank to the internal output channel. A liquid tank cooling channel is provided on the outside of the liquid storage tank. The liquid tank cooling channel is used to transport coolant to the outside of the liquid storage tank to reduce the temperature of the space where the liquid storage tank is located.

[0007] Preferably, the cooling component comprises a cooling container placed obliquely along the length direction, a cooling input channel arranged on the higher side of the cooling container, and a cooling output channel arranged on the lower side of the cooling container;

[0008] The cooling input channel is connected to the external recovery channel, and the cooling output channel is connected to the liquid storage tank.

[0009] Preferably, a cooling input valve is provided on the cooling input channel, a cooling output valve is provided on the cooling output channel, and a liquid level sensor is provided on the cooling container;

[0010] The cooling input valve is used to open or close the cooling input channel. When the cooling input valve is open, the coolant can flow into the cooling container through the cooling input channel. When the cooling input valve is closed, the coolant cannot flow into the cooling container through the cooling input channel.

[0011] The cooling output valve is used to open or close the cooling output channel. When the cooling output valve is open, the coolant can flow out of the cooling container through the cooling output channel. When the cooling output valve is closed, the coolant cannot flow out of the cooling container through the cooling output channel.

[0012] The liquid level sensor is used to detect the liquid level of the coolant inside the cooling container. The liquid level sensor can output a control signal to close the cooling input valve when the liquid level in the cooling container is higher than a preset threshold.

[0013] Preferably, a container cooling channel is provided above the cooling container, the container cooling channel is connected to the internal output channel, and the container cooling channel is used to transport cooling liquid to the outside of the cooling container to reduce the temperature of the space where the cooling container is located.

[0014] Preferably, the cooling system comprises a plurality of cooling components, the cooling input channels of the plurality of cooling components are respectively connected to the external recovery channels, and the cooling output channels are respectively connected to the liquid storage tanks.

[0015] Preferably, the cooling system further comprises a filter container, one end of which is connected to an external recovery pipeline, and the other end of which is connected to a cooling component;

[0016] A step is provided at the bottom inner side of the filter container, and a filter core is provided on the step; the filter core divides the inner space of the filter container into a pre-filter area connected to an external recovery pipeline and a post-filter area connected to a cooling component; the coolant in the pre-filter area can flow to the post-filter area after impurities are filtered out by the filter core; the impurities filtered out by the filter core fall to the bottom of the step.

[0017] Preferably, the cooling system further comprises an exhaust passage, which is connected to the liquid storage tank and is used to exhaust the gas inside the liquid storage tank to prevent the coolant from flowing into the liquid storage tank due to the increase of the gas pressure inside the liquid storage tank;

[0018] The liquid storage tank is provided with an external input channel, and the external input channel is used to add coolant into the liquid storage tank.

[0019] The present invention also provides a box-type substation, including a cooling system for the box-type substation, wherein the box-type substation includes an outer shell and a top shell arranged on the ground, the top shell is on the top of the outer shell, the outer shell, the top shell and the ground form an enclosed space, and the substation equipment is in the enclosed space;

[0020] The box-type substation is provided with a main pipeline outside, and the main pipeline is connected to the external output pipeline; a side branch pipeline connected to the main pipeline is provided on the outside of the shell, and a spray head is provided on the side branch pipeline, and the spray head of the side branch pipeline is used to spray the cooling liquid to the outer surface of the shell; a top branch pipeline is provided on the top of the top shell, and a spray head is provided on the top branch pipeline, and the spray head of the top branch pipeline is used to spray the cooling liquid to the outer surface of the top shell;

[0021] A top recovery trough is provided at the edge of the top shell of the box-type substation, and the top recovery trough is used to collect the coolant sprayed onto the top shell; a bottom recovery trough is provided at the edge of the bottom of the shell, and the bottom recovery trough is used to collect the coolant sprayed onto the shell; the top recovery trough and the bottom recovery trough are connected to the external recovery channel.

[0022] Preferably, a shielding plate is provided above the main pipeline and the top branch pipeline on the top shell, and the shielding plate is used to block direct sunlight from shining on the main pipeline and the top branch pipeline on the top shell, thereby preventing the coolant temperature inside the main pipeline and the top branch pipeline from rising rapidly.

[0023] Preferably, the housing is provided with an air inlet duct, which penetrates the housing and is used to supply air to the inner space of the housing; the air inlet duct is in an oblate arc shape and is hollow inside;

[0024] An air inlet branch duct is arranged on the top of the air inlet duct, which is connected to the main duct. A spray head is arranged on the air inlet branch duct, which is used to spray coolant onto the outer surface of the air inlet duct. The end of the air inlet duct away from the shell is bent toward the opening towards the ground.

[0025] According to an embodiment of the present invention, a cooling system for a box-type substation and a box-type substation reduce the surface temperature of the box-type substation by spraying coolant to the box-type substation so that the coolant evaporates on the outer surface of the box-type substation. The cooling system can recycle the coolant, and the liquid storage tank and the cooling component are all arranged underground next to the box-type substation. The internal output channel can discharge the coolant to the nearby soil to increase the soil moisture, reduce the temperature and improve the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present disclosure includes drawings, which should be considered to be included in and constitute a part of the specification, and together with the specification, illustrate various exemplary embodiments, features and aspects of the present disclosure, and are used to explain the principles of the present disclosure. The present invention will be more fully understood through the following detailed description in conjunction with the drawings. Among them:

[0027] Figure 1 A cooling system for a box-type substation and a usage status diagram of the box-type substation according to an embodiment of the present invention;

[0028] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0029] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle;

[0030] Figure 4 It is a cross-sectional view of a top shell of a box-type substation and a main pipeline and a top branch pipeline on the top shell according to an embodiment of the present invention;

[0031] Figure 5 It is a partial enlarged view of an air inlet duct and an air inlet branch duct of a box-type substation according to an embodiment of the present invention;

[0032] Figure 6 is a schematic diagram of a cooling system for a box-type substation according to an embodiment of the present invention;

[0033] Figure 7 is a cross-sectional view of a filter container for a cooling system of a box-type substation according to an embodiment of the present invention;

[0034] Figure 8 is a cross-sectional view of a cooling system for a box-type substation according to an embodiment of the present invention;

[0035] Among them: liquid storage tank 10, external output channel 11, external recovery channel 12, external output pump 13, liquid tank cooling channel 14, internal output channel 15, cooling container 21, cooling input channel 22, cooling output channel 23, cooling input valve 24, cooling output valve 25, liquid level sensor 26, container cooling channel 27, filter container 30, step 31, filter element 32, exhaust channel 33, external input channel 34, outer shell 41, top shell 42, main pipeline 43, side branch pipeline 44, sprinkler head 45, top branch pipeline 46, top recovery tank 47, bottom recovery tank 48, baffle 49, air inlet pipeline 51, air inlet branch pipeline 52. DETAILED DESCRIPTION

[0036] The technical solution of the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0037] Box-type substation is a closed device that integrates substation equipment, control equipment and distribution equipment, usually consisting of a box. Box-type substation is usually used in power distribution systems in cities, industrial and mining enterprises, rural areas and other areas, with the characteristics of compact structure and easy installation.

[0038] However, most box-type substations are used in outdoor environments. In some areas, the temperature is high, the sunlight is strong, and the sunshine time is long. Long-term and high-intensity sunshine can quickly increase the temperature of the box-type substation shell 41, and the temperature inside the box-type substation also increases accordingly. The substation equipment inside the box-type substation is easily affected by the high temperature and malfunctions.

[0039] In order to solve the above problems, the object of the present invention is to provide a cooling system for a box-type substation, the cooling system comprising: a liquid storage tank 10 for storing coolant, an external output channel 11 connected to the liquid storage tank 10 and used to transport the coolant to the box-type substation, and an external recovery channel 12 for recovering the coolant;

[0040] The external output channel 11 is connected to an external output pump 13, and the external output pump 13 is used to transport the coolant in the liquid storage tank 10 to the external output channel 11; the cooling system also includes a cooling component, the external recovery channel 12 is connected to the cooling component, and the cooling component is connected to the liquid storage tank 10 through a pipeline, and the cooling component is used to reduce the coolant input by the external recovery pipeline and transport the cooled coolant to the liquid storage tank 10;

[0041] The cooling system also includes an internal output channel 15 and an internal output pump for conveying coolant to the internal output channel 15. The liquid tank cooling channel 14 is connected to the internal output channel 15. The internal output channel 15 is connected to the liquid storage tank 10. The internal output pump can convey the coolant inside the liquid storage tank 10 to the internal output channel 15. The liquid storage tank 10 is provided with a liquid tank cooling channel 14 on the outside. The liquid tank cooling channel 14 is used to convey coolant to the outside of the liquid storage tank 10 to reduce the temperature of the space where the liquid storage tank 10 is located.

[0042] In this embodiment, the liquid storage tank 10 and the cooling component are arranged underground next to the box-type substation, and the coolant can be water or other liquids with large specific heat capacity. The external output channel 11 is a pipeline for the liquid storage tank 10 to output the coolant to the outside, such as Figure 8 As shown, the external output pump 13 can be arranged inside the liquid storage tank 10 or outside the liquid storage tank 10 and connected to the liquid storage tank 10 through a pipeline. The external output pump 13 of this embodiment is arranged inside the liquid storage tank 10. When the external output pump 13 is in operation, the liquid in the liquid storage tank 10 can be pumped to the external output channel 11.

[0043] The cooling component can be a long and thin pipe, the temperature of the pipe wall is lower than the temperature of the coolant inside it, thereby cooling the coolant. The cooling component is used to cool the recovered coolant and transport the coolant to the liquid storage tank 10 after cooling.

[0044] like Figure 6As shown, the internal output channel 15 is used to discharge the coolant to the outer wall of the liquid storage tank 10 and / or the cooling component. The liquid storage tank 10 and the cooling component are both arranged underground and buried inside the soil. Sprinkling water on the soil can increase the moisture of the soil. Soil with a high moisture content has a higher heat dissipation rate. In addition, soil with high humidity has a higher evaporation rate. Evaporation is an endothermic process and is more conducive to cooling. In addition, soil with high humidity has a higher heat capacity, which allows the liquid storage tank 10 to maintain a stable temperature.

[0045] In some embodiments, the liquid tank cooling channel 14 is arranged at the top of the outside of the liquid storage tank 10, and the liquid tank cooling channel 14 is arranged along the length direction of the liquid storage tank 10. A plurality of drain outlets are arranged at intervals on the liquid tank cooling channel 14. The plurality of drain outlets can discharge water outward at the same time, so that the soil outside the liquid storage tank 10 remains moist.

[0046] In some embodiments, the internal output pump is disposed inside the liquid storage tank 10 , and when the internal output pump is in operation, the liquid in the liquid storage tank 10 can be pumped to the internal output channel 15 .

[0047] Furthermore, the cooling component includes a cooling container 21 placed obliquely along the length direction, a cooling input channel 22 arranged on a higher side of the cooling container 21, and a cooling output channel 23 arranged on a lower side of the cooling container 21;

[0048] The cooling input channel 22 is connected to the external recovery channel 12 , and the cooling output channel 23 is connected to the liquid storage tank 10 .

[0049] In this embodiment, Figure 6 , Figure 8 As shown, the cooling container 21 is a slender pipe, and the cooling container 21 is arranged between the liquid storage tank 10 and the external recovery channel 12. The coolant output from the external recovery channel 12 is cooled by the cooling container 21 and then transported to the liquid storage tank 10.

[0050] Furthermore, a cooling input valve 24 is provided on the cooling input channel 22, a cooling output valve 25 is provided on the cooling output channel 23, and a liquid level sensor 26 is provided on the cooling container 21;

[0051] The cooling input valve 24 is used to open or close the cooling input channel 22. When the cooling input valve 24 is open, the coolant can flow into the cooling container 21 through the cooling input channel 22. When the cooling input valve 24 is closed, the coolant cannot flow into the cooling container 21 through the cooling input channel 22.

[0052] The cooling output valve 25 is used to open or close the cooling output channel 23. When the cooling output valve 25 is open, the coolant can flow out of the cooling container 21 through the cooling output channel 23. When the cooling output valve 25 is closed, the coolant cannot flow out of the cooling container 21 through the cooling output channel 23.

[0053] The liquid level sensor 26 is used to detect the liquid level of the coolant inside the cooling container 21 . The liquid level sensor 26 can output a control signal to close the cooling input valve 24 when the liquid level in the cooling container 21 is higher than a preset threshold.

[0054] The liquid level sensor 26 can be a float type liquid level sensor 26 or a capacitive type liquid level sensor 26. The liquid level sensor 26 can be arranged on the cooling container 21 near the cooling input channel 22. When the liquid level is high, it means that the used capacity of the cooling container 21 is large, and the cooling input channel 22 can be controlled to be closed. On the contrary, when the liquid level is low, the cooling input channel 22 can be controlled to be opened.

[0055] In some embodiments, a temperature sensor may be further provided in the cooling container 21, and the temperature sensor is used to detect the temperature of the coolant. When the temperature of the coolant in the cooling container 21 is lower than a preset temperature threshold, the cooling output channel 23 is controlled to open. On the contrary, before the temperature of the coolant in the cooling container 21 drops to the preset temperature threshold, the cooling output channel 23 is closed.

[0056] Furthermore, a container cooling channel 27 is provided above the cooling container 21 , and the container cooling channel 27 is connected to the internal output channel 15 . The container cooling channel 27 is used to transport coolant to the outside of the cooling container 21 to reduce the temperature of the space where the cooling container 21 is located.

[0057] In this embodiment, the container cooling channel 27 is arranged along the length direction of the cooling container 21, and a plurality of drainage holes are arranged at intervals on the container cooling channel 27. The plurality of drainage holes can simultaneously discharge water to the outside to reduce the temperature of the outer wall of the cooling container 21 and increase the humidity of the soil near the cooling container 21, thereby ultimately increasing the heat dissipation effect of the cooling container 21.

[0058] In some embodiments, the temperature sensor signal of the cooling container 21 and the liquid level sensor 26 signal can control the power of the internal output pump. When the remaining capacity in the cooling container 21 is small and the temperature is high, more coolant can be output to the cooling container 21 to increase the heat dissipation efficiency.

[0059] Furthermore, the cooling system includes a plurality of cooling components, the cooling input channels 22 of the plurality of cooling components are respectively connected to the external recovery channel 12 , and the cooling output channels 23 are respectively connected to the liquid storage tank 10 .

[0060] In this embodiment, the number of cooling components can be set according to the environment in which the box-type substation is located. The more cooling components there are, the higher the cooling efficiency is.

[0061] like Figure 6 As shown, multiple cooling components are arranged side by side, and the cooling input channels 22 of the multiple cooling components are respectively connected to the external recovery channel 12, and the cooling output channels 23 are respectively connected to the liquid storage tank 10. Each cooling component can operate independently.

[0062] Furthermore, the cooling system further comprises a filter container 30, one end of which is connected to an external recovery pipe, and the other end of which is connected to a cooling component;

[0063] A step 31 is provided at the bottom inner side of the filter container 30, and a filter core 32 is provided on the step 31; the filter core 32 divides the internal space of the filter container 30 into a pre-filter area connected to an external recovery pipeline and a post-filter area connected to a cooling component; the coolant in the pre-filter area can flow to the post-filter area after impurities are filtered out by the filter core 32; the impurities filtered out by the filter core 32 fall to the bottom of the step 31.

[0064] In this embodiment, Figure 6 , Figure 7 As shown, the step 31 at the bottom of the inner side of the filter container 30 can form a height difference, and the height difference space is used to temporarily store impurities that have not passed through the filter element 32. The filter element 32 can be a filter element such as a sponge that can filter out impurities in the liquid.

[0065] Furthermore, the cooling system further includes an exhaust passage 33, which is connected to the liquid storage tank 10 and is used to exhaust the gas inside the liquid storage tank 10 to prevent the coolant from flowing into the liquid storage tank 10 due to the increase of the internal air pressure of the liquid storage tank 10;

[0066] The liquid storage tank 10 is provided with an external input channel 34 , and the external input channel 34 is used to add coolant into the liquid storage tank 10 .

[0067] In this embodiment, Figure 6 As shown, the cooling system of this embodiment is provided with a plurality of exhaust channels 33, which are pipes, one end of which is located at a higher position, so that liquid does not flow out of the exhaust channels 33, and the exhaust channels 33 play a role in balancing the air pressure. The exhaust pipes of the cooling system of this embodiment are respectively arranged on the top of the cooling container 21 and the liquid storage tank 10.

[0068] The external input channel 34 can be connected to the liquid storage tank 10 to replenish the cooling liquid into the liquid storage tank 10. The external input channel 34 can also be connected to a cooling container, and the replenished cooling liquid is added to the liquid storage tank 10 after being cooled.

[0069] The present invention also provides a box-type substation, including a cooling system for the box-type substation, wherein the box-type substation includes an outer shell 41 and a top shell 42 arranged on the ground, wherein the top shell 42 is on the top of the outer shell 41, and the outer shell 41, the top shell 42 and the ground form an enclosed space, wherein the substation equipment is in the enclosed space;

[0070] The box-type substation is provided with a main pipeline 43 outside, and the main pipeline 43 is connected to the external output pipeline; the outer side of the shell 41 is provided with a side branch pipeline 44 connected to the main pipeline 43, and a spray head 45 is provided on the side branch pipeline 44, and the spray head 45 of the side branch pipeline 44 is used to spray the cooling liquid to the outer surface of the shell 41; the top of the top shell 42 is provided with a top branch pipeline 46, and the top branch pipeline 46 is provided with a spray head 45, and the spray head 45 of the top branch pipeline 46 is used to spray the cooling liquid to the outer surface of the top shell 42;

[0071] A top recovery groove 47 is provided at the edge of the top shell 42 of the box-type substation, and the top recovery groove 47 is used to collect the coolant sprayed to the top shell 42; a bottom recovery groove 48 is provided at the edge of the bottom of the outer shell 41, and the bottom recovery groove 48 is used to collect the coolant sprayed to the outer shell 41; the top recovery groove 47 and the bottom recovery groove 48 are connected to the external recovery channel 12.

[0072] In this embodiment, Figure 1 As shown, the outer shell 41 is a rectangular frame surrounded by hard plates, which closes the four sides of the box-type substation. The top shell 42 is an angled plate that closes the top of the box-type substation. The top shell 42 is high in the middle and low on both sides to prevent water from accumulating on the top when it rains.

[0073] In some embodiments, a door for people to enter and exit is provided in one direction of the housing 41. In order to enable the door to be opened and closed normally, the side branch pipe 44 is not provided on the door, and the main pipe 43 is not provided on the side with the door. The main pipe 43 extends from the bottom to the top of the housing 41 from one side of the housing 41, and passes through the top housing 42 from the top of the top housing 42.

[0074] The box-type substation of this embodiment is provided with two side branch pipelines 44 , one at the middle of the height direction of the shell 41 , and the other at the top of the shell 41 .

[0075] In some embodiments, a support is provided on the outer shell 41 and the top shell 42, and one end of the support is bonded to the outer surface of the outer shell 41 or the top shell 42 or fixed to the outer surface of the outer shell 41 or the top shell 42 by a fastener. A buckle capable of clamping the side branch pipe 44, the top branch pipe 46 or the main pipe 43 is provided at the other end of the support. The support is used to fix the position of the side branch pipe 44, the top branch pipe 46 or the main pipe 43. A spray head 45 is provided on the side branch pipe 44, and the spray head 45 of the side branch pipe 44 is used to spray the cooling liquid to the outer surface of the outer shell 41; a spray head 45 is provided on the top branch pipe 46, and the spray head 45 of the top branch pipe 46 is used to spray the cooling liquid to the outer surface of the top shell 42. The spray head 45 can atomize the cooling liquid to increase the contact area between the cooling liquid and the top shell 42 or the outer shell 41.

[0076] like Figure 2 As shown, the top recovery groove 47 is arranged at the edge of the top shell 42, and the coolant on the top shell 42 can flow to the top recovery groove 47 by gravity. The top recovery groove 47 is provided with a drain port, and the drain port is connected to the external recovery channel 12 through a pipeline.

[0077] like Figure 3 As shown, the bottom recovery groove 48 is arranged at the edge of the bottom of the shell 41, and the coolant on the shell 41 can flow to the bottom recovery groove 48 by gravity. The bottom recovery groove 48 is provided with a drain port, and the drain port is connected to the external recovery channel 12 through a pipeline.

[0078] Furthermore, a shielding plate 49 is provided above the main pipe 43 and the top branch pipe 46 on the top shell 42, and the shielding plate 49 is used to block direct sunlight from shining on the main pipe 43 and the top branch pipe 46 on the top shell 42, thereby preventing the coolant temperature inside the main pipe 43 and the top branch pipe 46 from rising rapidly.

[0079] In this embodiment, Figure 4 As shown, the shielding plate 49 is made of a heat-insulating material, and a bracket is provided between the shielding plate 49 and the top shell 42, and the bracket is used to install the shielding plate 49 above the main pipe 43 and the top branch pipe 46. The shielding plate 49 can block direct sunlight from the main pipe 43 and the top branch pipe 46 on the top shell 42, and prevent the coolant temperature inside the main pipe 43 and the top branch pipe 46 from rising rapidly.

[0080] Furthermore, the housing 41 is provided with an air inlet duct 51, which penetrates the housing 41 and is used to supply air to the inner space of the housing 41; the air inlet duct 51 is in an oblate arc shape and is hollow inside;

[0081] An air inlet branch duct 52 is arranged at the top of the air inlet duct 51, and the air inlet branch duct 52 is connected to the main duct 43. A spray head 45 is arranged on the air inlet branch duct 52, and the spray head 45 on the air inlet branch duct 52 is used to spray coolant onto the outer surface of the air inlet duct 51; the end of the air inlet duct 51 away from the outer shell 41 is bent toward the opening toward the ground.

[0082] In this embodiment, Figure 5 As shown, the air inlet branch pipe 52 is in an oblate arc shape, with the arc-shaped arched portion facing upwards. The air inlet branch pipe 52 is arranged above the arc-shaped arched portion, and the spray head 45 of the air inlet branch pipe 52 sprays on the arc-shaped arched portion, so that the coolant can flow downward on the arched portion, thereby increasing the coverage area of ​​the coolant. The end of the air inlet pipe 51 away from the housing 41 is bent toward the opening, i.e., the air inlet, toward the ground, so that the coolant can drip downward from the opening instead of flowing in from the opening, thereby preventing the coolant from flowing into the interior of the box-type substation from the air inlet pipe 51.

[0083] The various embodiments disclosed in the present invention have been described above. The above description is exemplary and not exhaustive, and the scope of the present invention is not limited to the above embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the spirit and scope of the present invention. In other words, those of ordinary skill in the art can make various changes and improvements to the present invention in form and detail, and these are considered to fall within the scope of protection of the present invention. The choice of terms used herein is intended to best explain the principles of the various embodiments, practical applications, or improvements to the technology in the market, or to enable those of ordinary skill in the art to understand the various embodiments disclosed herein.

Claims

1. A cooling system for a box-type substation, characterized in that: The cooling system comprises: a liquid storage tank (10) for storing cooling liquid, an external output channel (11) connected to the liquid storage tank (10) and used for transporting cooling liquid to the box-type substation, and an external recovery channel (12) for recovering cooling liquid; The external output channel (11) is connected to an external output pump (13), and the external output pump (13) is used to transport the cooling liquid in the liquid storage tank (10) to the external output channel (11); the cooling system also includes a cooling component, the external recovery channel (12) is connected to the cooling component, the cooling component is connected to the liquid storage tank (10) through a pipeline, and the cooling component is used to reduce the cooling liquid input by the external recovery pipeline and transport the cooled cooling liquid to the liquid storage tank (10); The cooling system further comprises an internal output channel (15) and an internal output pump for conveying cooling liquid to the internal output channel (15); a liquid tank cooling channel (14) is connected to the internal output channel (15); the internal output channel (15) is connected to the liquid storage tank (10); the internal output pump can convey cooling liquid inside the liquid storage tank (10) to the internal output channel (15); a liquid tank cooling channel (14) is arranged outside the liquid storage tank (10); the liquid tank cooling channel (14) is used to convey cooling liquid to the outside of the liquid storage tank (10) so as to reduce the temperature of a space where the liquid storage tank (10) is located.

2. A cooling system for a box-type substation according to claim 1, characterized in that: The cooling component comprises a cooling container (21) placed obliquely along the length direction, a cooling input channel (22) arranged on a higher side of the cooling container (21), and a cooling output channel (23) arranged on a lower side of the cooling container (21); The cooling input channel (22) is connected to the external recovery channel (12), and the cooling output channel (23) is connected to the liquid storage tank (10).

3. A cooling system for a box-type substation according to claim 2, characterized in that: The cooling input channel (22) is provided with a cooling input valve (24), the cooling output channel (23) is provided with a cooling output valve (25), and the cooling container (21) is provided with a liquid level sensor (26); The cooling input valve (24) is used to open or close the cooling input channel (22); when the cooling input valve (24) is in the open state, the cooling liquid can flow into the cooling container (21) through the cooling input channel (22); when the cooling input valve (24) is in the closed state, the cooling liquid cannot flow into the cooling container (21) through the cooling input channel (22); The cooling output valve (25) is used to open or close the cooling output channel (23); when the cooling output valve (25) is in the open state, the cooling liquid can flow out of the cooling container (21) through the cooling output channel (23); when the cooling output valve (25) is in the closed state, the cooling liquid cannot flow out of the cooling container (21) through the cooling output channel (23); The liquid level sensor (26) is used to detect the liquid level of the cooling liquid inside the cooling container (21). The liquid level sensor (26) can output a control signal to close the cooling input valve (24) when the liquid level in the cooling container (21) is higher than a preset threshold.

4. A cooling system for a box-type substation according to claim 2, characterized in that: A container cooling channel (27) is provided above the cooling container (21), and the container cooling channel (27) is connected to the internal output channel (15). The container cooling channel (27) is used to transport cooling liquid to the outside of the cooling container (21) to reduce the temperature of the space where the cooling container (21) is located.

5. A cooling system for a box-type substation according to any one of claims 2 to 4, characterized in that: The cooling system comprises a plurality of cooling components, wherein the cooling input channels (22) of the plurality of cooling components are respectively connected to the external recovery channel (12), and the cooling output channels (23) are respectively connected to the liquid storage tank (10).

6. A cooling system for a box-type substation according to claim 1, characterized in that: The cooling system further comprises a filter container (30), one end of the filter container (30) is connected to an external recovery pipeline, and the other end is connected to a cooling component; The bottom of the inner side of the filter container (30) is provided with a step (31), and a filter core (32) is provided on the step (31); the filter core (32) divides the inner space of the filter container (30) into a pre-filter area connected to an external recovery pipeline and a post-filter area connected to a cooling component; the coolant in the pre-filter area can flow to the post-filter area after impurities are filtered out by the filter core (32); the impurities filtered out by the filter core (32) fall to the bottom of the step (31).

7. A cooling system for a box-type substation according to claim 1, characterized in that: The cooling system further comprises an exhaust passage (33), wherein the exhaust passage (33) is connected to the liquid storage tank (10) and is used to exhaust gas inside the liquid storage tank (10) to prevent the internal gas pressure of the liquid storage tank (10) from increasing, thereby preventing the coolant from flowing into the liquid storage tank (10); The liquid storage tank (10) is provided with an external input channel (34), and the external input channel (34) is used to add cooling liquid into the liquid storage tank (10).

8. A box-type substation, comprising a cooling system for a box-type substation according to any one of claims 1 to 7, characterized in that: The box-type substation comprises an outer shell (41) and a top shell (42) arranged on the ground, the top shell (42) is on the top of the outer shell (41), the outer shell (41), the top shell (42) and the ground form an enclosed space, and the substation equipment is in the enclosed space; A main pipeline (43) is arranged outside the box-type substation, and the main pipeline (43) is connected to an external output pipeline; a side branch pipeline (44) connected to the main pipeline (43) is arranged outside the outer shell (41), and a spray head (45) is arranged on the side branch pipeline (44), and the spray head (45) of the side branch pipeline (44) is used to spray cooling liquid onto the outer surface of the outer shell (41); a top branch pipeline (46) is arranged on the top of the top shell (42), and a spray head (45) is arranged on the top branch pipeline (46), and the spray head (45) of the top branch pipeline (46) is used to spray cooling liquid onto the outer surface of the top shell (42); The edge of the top shell (42) of the box-type substation is provided with a top recovery groove (47), and the top recovery groove (47) is used to collect the cooling liquid sprayed onto the top shell (42); the edge of the bottom of the outer shell (41) is provided with a bottom recovery groove (48), and the bottom recovery groove (48) is used to collect the cooling liquid sprayed onto the outer shell (41); the top recovery groove (47) and the bottom recovery groove (48) are connected to the external recovery channel (12).

9. A box-type substation according to claim 8, characterized in that: A shielding plate (49) is arranged above the main pipeline (43) and the top branch pipeline (46) on the top shell (42), and the shielding plate (49) is used to block direct sunlight from shining on the main pipeline (43) and the top branch pipeline (46) on the top shell (42), thereby preventing the temperature of the coolant inside the main pipeline (43) and the top branch pipeline (46) from rising rapidly.

10. A box-type substation according to claim 8, characterized in that: The outer shell (41) is provided with an air inlet duct (51), which penetrates the outer shell (41) and is used to supply air to the inner space of the outer shell (41); the air inlet duct (51) is in an oblate arc shape and is hollow inside; An air inlet branch pipe (52) is arranged at the top of the air inlet pipe (51), the air inlet branch pipe (52) is connected to the main pipe (43), a spray head (45) is arranged on the air inlet branch pipe (52), and the spray head (45) on the air inlet branch pipe (52) is used to spray cooling liquid onto the outer surface of the air inlet pipe (51); one end of the air inlet pipe (51) away from the outer shell (41) is bent in the direction of the opening toward the ground.

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