CN219498700U - Cooling device for power distribution cabinet - Google Patents
Cooling device for power distribution cabinet Download PDFInfo
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- CN219498700U CN219498700U CN202320516944.9U CN202320516944U CN219498700U CN 219498700 U CN219498700 U CN 219498700U CN 202320516944 U CN202320516944 U CN 202320516944U CN 219498700 U CN219498700 U CN 219498700U
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Abstract
The utility model discloses a cooling device of a power distribution cabinet, which comprises a liquid storage tank; the lower part and the upper part of the liquid storage tank are respectively provided with a liquid inlet pipe and a liquid outlet pipe which are used for connecting a cooling pipe in the cabinet; a plurality of hollow flat tubes which are distributed at intervals are arranged in the middle of the liquid storage tank; the upper end and the lower end of each flat tube respectively penetrate through the upper end and the lower end of the liquid storage tank; the top of the liquid storage tank is provided with a vent communicated with the inside of the liquid storage tank; the lower end of the liquid outlet pipe extends into the liquid storage tank to below the liquid level of cooling liquid preset in the liquid storage tank and is positioned above the liquid inlet pipe; the liquid outlet pipe is provided with a circulating pump for sucking the cooling liquid in the liquid storage tank; a fan is arranged below the liquid storage tank. According to the utility model, an open mode normal pressure pipeline is adopted, so that the accumulation of cooling liquid pressure is avoided, the risk of pipe explosion of the cooling pipe is greatly reduced, and the safety risk and the maintenance cost of the power distribution cabinet are further reduced.
Description
Technical Field
The utility model belongs to the technical field of metal smelting, and particularly relates to a cooling device of a power distribution cabinet.
Background
The metal smelting industry often uses intermediate frequency furnaces for heating. The power distribution cabinet for providing power for the intermediate frequency furnace has the characteristics of large current load and high heat quantity. Generally, cold air can be introduced into the power distribution cabinet for cooling, but the cooling effect is limited. The cooling water pipeline is led into the power distribution cabinet for cooling, but the problems are that firstly, the cooling water pipeline in the power distribution cabinet is dense, the cooling water pipeline is easy to burst after long-term operation, and the cooling water is contacted with electrical equipment to cause open circuit, so that hidden danger is buried for safe operation of the equipment; second, frequent maintenance and replacement are required in order to ensure reliable operation of the cooling water pipes. Taking a smelting workshop of a certain metallurgical enterprise as an example, a plurality of power distribution cabinets in the workshop are all provided with cooling water pipes, more than 400 cooling water pipes are replaced each year, the maintenance cost is high, and the workload of disassembling and assembling the cooling water pipes is large.
Disclosure of Invention
In order to overcome the defects in the background technology, the utility model provides a cooling device of a power distribution cabinet, which aims at ensuring that a cooling water pipe can reliably run for a long time with the primary purpose of preventing pipe explosion, thereby reducing potential safety hazards and maintenance cost.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a cooling device of a power distribution cabinet comprises a liquid storage tank; the lower part and the upper part of the liquid storage tank are respectively provided with a liquid inlet pipe and a liquid outlet pipe for connecting a cooling pipe in the power distribution cabinet; the liquid inlet pipe, the liquid storage tank, the liquid outlet pipe and the cooling pipe in the cabinet form a circulating pipeline; a plurality of hollow flat tubes which are distributed at intervals are arranged in the middle of the liquid storage tank; the upper end and the lower end of each flat tube respectively penetrate through the upper end and the lower end of the liquid storage tank to form an air flow channel penetrating through the liquid storage tank; the top of the liquid storage tank is provided with a vent communicated with the inside of the liquid storage tank; the lower end of the liquid outlet pipe extends into the liquid storage tank to below the liquid level of cooling liquid preset in the liquid storage tank and is positioned above the liquid inlet pipe; the liquid outlet pipe is provided with a circulating pump for sucking the cooling liquid in the liquid storage tank; a fan is arranged below the liquid storage tank and used for blowing cooling air into the air flow channel.
As a further optimization, one side of each flat tube is provided with a baffle plate part; the outer end of the partition plate part is connected with the inner wall of the liquid storage tank in a sealing way; the partition plate parts of two adjacent flat pipes are relatively far away from each other.
As a further optimization, the cooling liquid is cooling oil or cooling water.
As a further refinement, the liquid tank is arranged outside the rear wall opposite to the cabinet door of the power distribution cabinet.
As further optimization, the cooling pipe in the cabinet is a zigzag winding pipe, two ends of the cooling pipe are detachably inserted into the side wall of the power distribution cabinet and are communicated with the liquid inlet pipe and the liquid outlet pipe outside the power distribution cabinet.
As further optimization, a plurality of cooling pipes in the cabinet are arranged in the power distribution cabinet at intervals up and down; two ends of each cooling pipe in the cabinet are respectively communicated with a liquid inlet main pipe and a liquid outlet main pipe which are positioned outside the power distribution cabinet; the outer end of the liquid inlet pipe is communicated with the lower part of the liquid inlet main pipe; the outer end of the liquid outlet pipe is communicated with the upper part of the liquid outlet main pipe.
The utility model has the beneficial effects that:
(1) Because the vent port of liquid reserve tank and atmosphere intercommunication for coolant liquid circulation pipeline is open normal pressure pipeline, even the coolant liquid in the pipeline is heated and expands, pressure can release in the liquid reserve tank, can not cause the pipe explosion, thereby greatly reduced safe risk and maintenance cost.
(2) The pipeline has no valve, so that the number of equipment is reduced, the number of fault risk points is further reduced, the reliability is improved, and the maintenance cost is low.
(3) The liquid storage tank has the functions of storing, cooling and keeping normal pressure, is multipurpose, saves the number of equipment and interfaces of pipeline connection, reduces fault risk points, and is high in reliability and convenient to maintain.
In a word, this device adopts open mode normal pressure pipeline, avoids the cooling liquid pressure to accumulate, greatly reduced the risk that the cooling tube exploded the pipe, and then reduced the security risk and the maintenance cost of switch board.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present utility model;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a sectional view in one direction of a liquid tank of embodiment 1 of the present utility model;
fig. 4 is a cross-sectional view in another direction of the liquid tank of embodiment 1 of the present utility model.
In the figure: 1 liquid storage tank, 11 liquid inlet pipe, 12 liquid outlet pipe, 13 flat pipe, 131 partition plate part, 14 air vent, 15 circulating pump, 16 fan, 17 liquid inlet main pipe, 18 liquid outlet main pipe, 2 power distribution cabinet, 21 cooling pipe in cabinet, 22 cabinet door, 23 base, 24 cabinet body air vent, 3 cooling liquid.
Detailed Description
The following description of the embodiments of the present utility model will be made more fully hereinafter with reference to the accompanying drawings, in which it is evident that the embodiments thus described are only some, but not all, of the preferred embodiments of the present utility model. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.
Example 1: please refer to fig. 1-4;
the utility model provides the following technical scheme: a cooling device of a power distribution cabinet is applied to providing power for an intermediate frequency furnace and comprises a liquid storage tank 1; the lower part and the upper part of the liquid storage tank 1 are respectively provided with a liquid inlet pipe 11 and a liquid outlet pipe 12 which are used for being connected with a cooling pipe 21 in the power distribution cabinet 2; the liquid inlet pipe 11, the liquid storage tank 1, the liquid outlet pipe 12 and the cooling pipe 21 in the cabinet form a circulating pipeline; the cooling liquid 3 circulating through the circulation line thus brings heat out of the interior of the power distribution cabinet 2 and cools it down to reduce the temperature inside the power distribution cabinet 2. Wherein the cooling liquid 3 is cooling oil or cooling water. Preferably cooling oil, has a high boiling point and is not easily gasified.
In order to cool the cooling liquid 3 outside the power distribution cabinet 2, the cooling effect is improved. A plurality of hollow flat pipes 13 which are distributed at intervals are arranged in the middle of the liquid storage tank 1; the upper and lower ends of each flat tube 13 respectively penetrate through the upper and lower ends of the liquid storage tank 1 to form an air flow channel penetrating through the liquid storage tank 1; a fan 16 is provided below the liquid storage tank 1 to blow cooling air into the air flow passage. Thus, when the air flow blows through the tank 1 containing the cooling liquid 3, the cooling liquid 3 inside thereof is cooled.
The key point is that the top of the liquid storage tank 1 is provided with a vent 14 communicated with the inside of the liquid storage tank; therefore, the tank 1 is open to the atmosphere, so that the circulation line is open to the atmosphere. Even if the cooling liquid 3 in the pipeline is heated and expands, the pressure can be released in the liquid storage tank 1, and the pipe explosion can not be caused.
In order to enable the cooling liquid 3 in the liquid storage tank 1 to circularly flow, the lower end of the liquid outlet pipe 12 extends into the liquid storage tank 1 to be below the liquid level of the cooling liquid 3 preset in the liquid storage tank 1 and is positioned above the liquid inlet pipe 11; the liquid outlet pipe 12 is provided with a circulating pump 15 for sucking the cooling liquid 3 in the liquid storage tank 1; therefore, the high-temperature coolant 3 fed from the feed pipe 11 is cooled by the tank body at the lower portion of the tank 1, and the upper low-temperature coolant 3 is sucked and discharged to the in-tank cooling pipe 21 by the discharge pipe 12, thereby forming a circulating flow. Thus, the liquid tank 1 of the present embodiment has functions of storing, cooling, and maintaining normal pressure.
It will be appreciated that the cooling function of the tank 1 is due to the different temperatures of the cooling liquid 3 at different levels, the temperature above is low and the temperature below is high. The heat dissipation capacity of the heat dissipation device depends on the height difference between the nozzles of the liquid inlet pipe 11 and the liquid outlet pipe 12, and the larger the height difference is, the larger the temperature difference is. However, the height of the liquid storage tank 1 is generally limited, and on the premise of limited height, in order to further improve the heat dissipation effect, a partition plate portion 131 is arranged on one side of each flat tube 13; the outer end of the partition plate part 131 is connected with the inner wall of the liquid storage tank 1 in a sealing way; the partition plate portions 131 of two adjacent flat tubes 13 are arranged relatively far apart. Therefore, the high temperature area is formed at the pipe opening of the liquid inlet pipe 11, and the cooling liquid 3 is blocked by the partition plate part 131 to bypass each flat pipe 13 in a meandering manner and then enter the low temperature area where the pipe opening of the liquid outlet pipe 12 is formed, so that a temperature difference is formed in the width direction of the liquid storage tank 1. At this time, the radiating effect is better, and the temperature of the cooling liquid 3 entering the pipe orifice of the liquid outlet pipe 12 is lower, which is more beneficial to cooling the power distribution cabinet 2.
Preferably, the tank 1 is arranged outside the rear wall opposite to the cabinet door 22 of the power distribution cabinet 2. The distance between the liquid storage tank 1 and the cooling pipe 21 in the cabinet can be reduced, the length of the connecting pipe is reduced, and the space and the cost are saved. Further preferably, the cooling pipe 21 in the cabinet is a zigzag coil pipe, two ends of the cooling pipe are detachably inserted into the side wall of the power distribution cabinet 2, and the cooling pipe is communicated with the liquid inlet pipe 11 and the liquid outlet pipe 12 outside the power distribution cabinet 2. The liquid inlet pipe 11 and the liquid outlet pipe 12 are connected with the cooling pipe 21 in the cabinet by adopting threads, and at this time, the advantage is that the two ends of the cooling pipe 21 in the cabinet can be disassembled outside the power distribution cabinet 2, so that the space is wide, and the disassembly and the assembly are convenient; on the other hand, the cooling pipe 21 in the cabinet is opposite to the cabinet door 22, and the cooling pipe 21 in the cabinet after being conveniently detached is taken out from the cabinet door 22, so that the cooling pipe is convenient to disassemble and assemble, and is beneficial to reducing maintenance cost.
For the power distribution cabinet 2, in order to improve the cooling effect, a preferable arrangement mode is that a plurality of cooling pipes 21 in the cabinet are arranged in the power distribution cabinet 2 at intervals up and down; at this time, two ends of each cooling pipe 21 in the cabinet are respectively communicated with a liquid inlet main pipe 17 and a liquid outlet main pipe 18 which are positioned outside the power distribution cabinet 2; the outer end of the liquid inlet pipe 11 is communicated with the lower part of the liquid inlet main pipe 17; the outer end of the liquid outlet pipe 12 is communicated with the upper part of the liquid outlet main pipe 18. Thus, a plurality of in-cabinet cooling pipes 21 are connected in parallel to the circulation line. While improving the heat exchange capacity, each intra-cabinet cooling tube 21 can distribute the pressure without causing tube explosion even if the circulation line is instantaneously pressurized.
When the cooling cabinet is used, one of the using modes is that firstly, the cooling liquid 3 is preloaded into the liquid storage tank 1, then the circulating pump 15 is started, the cooling liquid 3 is pumped and conveyed to the cooling pipe 21 in the cabinet, heat exchange is carried out through the pipe wall of the cooling pipe 21 in the cabinet, and heat in the power distribution cabinet 2 is transferred to the cooling liquid 3. When the cooling pipe 21 in the cabinet is filled, the air vent 14 of the liquid storage tank 1 is communicated with the atmosphere, so that the liquid storage tank 1 has no back pressure resistance, and the cooling liquid 3 naturally flows into the liquid storage tank 1. Then, the liquid storage tank 1 outside the power distribution cabinet 2 performs heat exchange with air through the side wall of the liquid storage tank 1 and the side wall of the flat pipe 13, radiates heat, cools down the cooling liquid 3, and the cooled cooling liquid 3 is sucked out by the liquid outlet pipe 12 again and is conveyed to the cooling pipe 21 in the cabinet, and the cooling is continuously performed for the power distribution cabinet 2 in a circulating and reciprocating mode.
The advantages of this embodiment are:
(1) Because the vent 14 of the liquid storage tank 1 is communicated with the atmosphere, the circulation pipeline of the cooling liquid 3 is an open normal pressure pipeline, even if the cooling liquid 3 in the pipeline is heated and expanded, the pressure can be released in the liquid storage tank 1, and the explosion can not be caused, thereby greatly reducing the safety risk and the maintenance cost.
(2) The pipeline has no valve, so that the number of equipment is reduced, the number of fault risk points is further reduced, the reliability is improved, and the maintenance cost is low.
(3) The liquid storage tank 1 has the functions of storing, cooling and keeping normal pressure, is multipurpose, saves the number of equipment and interfaces of pipeline connection, reduces the risk of faults, and has high reliability and convenient maintenance.
In a word, this device adopts open mode normal pressure pipeline, avoids 3 pressure accumulation of coolant liquid, greatly reduced the risk that the cooling tube exploded the pipe, and then reduced the security risk and the maintenance cost of switch board 2.
The utility model has not been described in detail in the prior art; it should be understood by those skilled in the art that any combination of the features of the foregoing embodiments may be adopted, and that all possible combinations of the features of the foregoing embodiments are not described for brevity of description, however, such combinations are not to be considered as a contradiction between the features. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. A cooling device of a power distribution cabinet comprises a liquid storage tank (1); the method is characterized in that: the lower part and the upper part of the liquid storage tank (1) are respectively provided with a liquid inlet pipe (11) and a liquid outlet pipe (12) which are used for connecting a cooling pipe (21) in the power distribution cabinet (2); the liquid inlet pipe (11), the liquid storage tank (1), the liquid outlet pipe (12) and the cooling pipe (21) in the cabinet form a circulating pipeline in sequence;
a plurality of hollow flat pipes (13) which are distributed at intervals are arranged in the middle of the liquid storage tank (1); the upper end and the lower end of each flat tube (13) respectively penetrate through the upper end and the lower end of the liquid storage tank (1) to form an air flow channel penetrating through the liquid storage tank (1);
the top of the liquid storage tank (1) is provided with a vent (14) communicated with the inside of the liquid storage tank; the lower end of the liquid outlet pipe (12) extends into the liquid storage tank (1) to a position below the liquid level of the cooling liquid (3) preset in the liquid storage tank (1) and above the liquid inlet pipe (11); a circulating pump (15) is arranged on the liquid outlet pipe (12);
a fan (16) blowing upwards is arranged below the liquid storage tank (1).
2. The power distribution cabinet cooling device according to claim 1, wherein: a baffle plate part (131) is arranged on one side of each flat tube (13); the outer end of the partition plate part (131) is connected with the inner wall of the liquid storage tank (1) in a sealing way; the partition plate portions (131) of two adjacent flat tubes (13) are arranged relatively far from each other.
3. The power distribution cabinet cooling device according to claim 2, wherein: the cooling liquid (3) is cooling oil or cooling water.
4. A power distribution cabinet cooling device according to claim 3, characterized in that: the liquid storage tank (1) is arranged on the outer side of the rear wall opposite to the cabinet door (22) of the power distribution cabinet (2).
5. The power distribution cabinet cooling device according to claim 4, wherein: the cooling pipe (21) in the cabinet is a zigzag winding pipe, two ends of the cooling pipe are detachably inserted into the side wall of the power distribution cabinet (2) and are communicated with the liquid inlet pipe (11) and the liquid outlet pipe (12) outside the power distribution cabinet (2).
6. The power distribution cabinet cooling device according to claim 5, wherein: a plurality of cooling pipes (21) in the cabinet are arranged in the power distribution cabinet (2) at intervals up and down;
both ends of each cooling pipe (21) in the cabinet are respectively communicated with a liquid inlet main pipe (17) and a liquid outlet main pipe (18) which are positioned outside the power distribution cabinet (2);
the outer end of the liquid inlet pipe (11) is communicated with the lower part of the liquid inlet main pipe (17);
the outer end of the liquid outlet pipe (12) is communicated with the upper part of the liquid outlet main pipe (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320516944.9U CN219498700U (en) | 2023-03-16 | 2023-03-16 | Cooling device for power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320516944.9U CN219498700U (en) | 2023-03-16 | 2023-03-16 | Cooling device for power distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219498700U true CN219498700U (en) | 2023-08-08 |
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ID=87511950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320516944.9U Active CN219498700U (en) | 2023-03-16 | 2023-03-16 | Cooling device for power distribution cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219498700U (en) |
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2023
- 2023-03-16 CN CN202320516944.9U patent/CN219498700U/en active Active
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