Circulating cooling type contactless control cabinet

Abstract

The utility model discloses a circulating cooling type contactless control cabinet, which comprises a cabinet body, a heat exchange plate, a graphene plate, a silicon controlled rectifier and cooling equipment, the heat exchange plate is installed in the cabinet body and is provided with an installation area and a heat exchange area, and a cooling flow channel is arranged in the heat exchange area. The graphene plate is attached to the heat exchange plate and extends to the heat exchange area from the mounting area; the silicon controlled rectifier is installed on the side, away from the heat exchange plate, of the graphene plate, and the orthographic projection of the silicon controlled rectifier on the heat exchange plate falls in the installation area. The cooling device communicates with the cooling flow channel and is used for conveying cooling liquid into the cooling flow channel. According to the scheme, heat generated by the silicon controlled rectifier can be efficiently transmitted to the heat exchange area of the heat exchange plate through the graphene plate and is taken away through the cooling liquid, rapid heat dissipation of the silicon controlled rectifier is achieved, and the heat dissipation effect is better. And when the cooling liquid flows out due to accidental damage of the cooling flow channel and the graphene plate of the heat exchange area, the silicon controlled rectifier is mounted at the position, right facing the mounting area, of the graphene plate, so that the probability that the cooling liquid is in contact with the silicon controlled rectifier is reduced, and the safety performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of control cabinets, in particular to a circulating cooling type contactless control cabinet. Background Art

[0002] As the temperature of the operating environment of steel plant cranes rises, traditional AC contactors installed in ordinary control cabinets are affected by the environment, and are prone to contact oxidation, core wear, shortened life, and high failure rates. This increases the probability of crane maintenance and increases maintenance costs, seriously affecting the crane's operating efficiency and the economic benefits of the plant. Therefore, it is necessary to dissipate heat and cool the control cabinet in a timely manner.

[0003] Patent CN203301891U discloses a thyristor control cabinet, which has a cooling fan on the top of the cabinet and heat sinks fixedly connected on both sides of the thyristor to dissipate heat inside the cabinet through the cooperation of the heat sink and the fixed cooling fan.

[0004] However, traditional air-cooled control cabinets have relatively low heat dissipation capacity when used in steel mills with higher temperatures. There is an urgent need to develop a control cabinet that still has good heat dissipation capacity in the steel mill environment. Utility Model Content

[0005] The purpose of this utility model is to overcome the above technical deficiencies and propose a circulating cooling contactless control cabinet to solve the technical problem of relatively low heat dissipation capacity of traditional air-cooled control cabinets in the prior art when used in steel mills with higher temperatures.

[0006] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0007] The utility model provides a circulating cooling contactless control cabinet, comprising:

[0008] Cabinet;

[0009] A heat exchange plate is installed in the cabinet and has an installation area and a heat exchange area, and a cooling flow channel is provided in the heat exchange area;

[0010] A graphene plate is attached to the heat exchange plate and extends from the mounting area to the heat exchange area;

[0011] a thyristor, mounted on a side of the graphene plate away from the heat exchange plate, with its orthographic projection on the heat exchange plate falling within the mounting area; and

[0012] The cooling device is connected to the cooling channel and is used to transport cooling liquid into the cooling channel.

[0013] In some embodiments, the heat exchange area is arranged around the installation area, and the graphene plate covers the heat exchange area and the installation area.

[0014] In some embodiments, the cooling channel surrounds the heat exchange area and has two ports;

[0015] The cooling device includes a circulation pipeline, a liquid storage tank and a pump body. The two ends of the circulation pipeline are respectively connected to the two ports. The liquid storage tank and the pump body are sequentially arranged on the circulation pipeline.

[0016] In some embodiments, the two ports are located at the same end of the heat exchange plate, and the end of the heat exchange plate where the ports are located extends out of the cabinet.

[0017] In some embodiments, the heat exchange plates are provided in multiple groups, and the multiple groups of heat exchange plates are arranged in sequence and spaced apart. The graphene plates are provided in multiple groups corresponding to the heat exchange plates, and each graphene plate is attached to the corresponding heat exchange plate. The thyristors are provided in multiple groups, and the multiple groups of thyristors are respectively provided on multiple graphene plates.

[0018] One port of any two adjacent groups of the heat exchange plates is connected, and both ends of the circulation pipe are respectively connected to the ports of the two heat exchange plates located on the outside.

[0019] In some embodiments, each group of the thyristors is provided with a plurality of them, and the plurality of thyristors in the same group are arranged in sequence along a first direction, and the first direction intersects with the arrangement direction of the plurality of groups of heat exchange plates.

[0020] In some embodiments, the heat plate is located on one side and is arranged around the periphery of the installation area.

[0021] In some embodiments, a partition is provided at one end of the baffle away from the graphene plate and extending in a direction away from the mounting area, and the partition extends along the circumference of the baffle; and / or,

[0022] The baffle plate is integrally provided with the graphene plate.

[0023] In some embodiments, the circulating cooling type contactless control cabinet further includes a temperature measuring device, which is disposed on the heat exchange plate and is used to monitor the temperature of the heat exchange plate.

[0024] In some embodiments, the heat exchange plate is an aluminum alloy plate.

[0025] Compared to the prior art, the circulating cooling contactless control cabinet provided by the present invention has a heat exchange area and a mounting area on the heat exchange plate, with coolant flowing through the cooling channel of the heat exchange area. The thyristor is mounted on the graphene plate directly opposite the mounting area, and the graphene plate partially extends from the mounting area to the heat exchange area. This allows the heat generated by the thyristor to be efficiently transferred to the heat exchange area of ​​the heat exchange plate via the graphene plate and removed by the coolant, achieving rapid heat dissipation of the thyristor, which is more effective than air cooling. Furthermore, if the cooling channel and graphene plate in the heat exchange area are accidentally damaged, causing coolant to leak out, the thyristor is mounted on the graphene plate directly opposite the mounting area, reducing the probability of coolant contacting the thyristor and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of a circulating cooling contactless control cabinet provided by an embodiment of the present utility model;

[0027] Figure 2 yes Figure 1 Internal schematic diagram of the medium-circulation cooling contactless control cabinet;

[0028] Figure 3 yes Figure 2 Partial schematic diagram of the medium-circulation cooling contactless control cabinet.

[0029] Description of reference numerals:

[0030] 1. Cabinet; 2. Heat exchange plate; 21. Installation area; 22. Heat exchange area; 221. Cooling channel; 222. Port; 3. Graphene plate; 4. Thyristor; 5. Cooling equipment; 51. Circulation pipe; 52. Pump body; 53. Metal hose; 6. Temperature measuring equipment. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] To address the relatively low heat dissipation capacity of conventional air-cooled control cabinets in high-temperature steel mills, the present invention provides a circulating-cooling, contactless control cabinet. Heat generated by the thyristors (SCRs) is efficiently transferred to the heat exchange zone of the heat exchange plate via the graphene plate, where it is removed by the coolant, rapidly dissipating heat from the SCRs and achieving superior heat dissipation compared to air cooling. Furthermore, if the cooling channels and graphene plate in the heat exchange zone are accidentally damaged, resulting in coolant leakage, the SCRs are mounted directly opposite the mounting area of ​​the graphene plate, reducing the likelihood of coolant contact, thereby improving safety.

[0033] See also Figures 1 to 3 , Figures 1 to 3 This is a structural schematic diagram of a circulating cooling contactless control cabinet in one embodiment of the present invention. The circulating cooling contactless control cabinet includes a cabinet body 1, a heat exchange plate 2, a graphene plate 3, a thyristor 4 and a cooling device 5; the heat exchange plate 2 is installed in the cabinet body 1 and has an installation area 21 and a heat exchange area 22, and a cooling channel 221 is provided in the heat exchange area 22; the graphene plate 3 is attached to the heat exchange plate 2 and extends from the installation area 21 to the heat exchange area 22; the thyristor 4 is installed on the side of the graphene plate 3 away from the heat exchange plate 2, and its orthographic projection on the heat exchange plate 2 falls within the installation area 21; the cooling device 5 is connected to the cooling channel 221 and is used to transport coolant to the cooling channel 221.

[0034] In the circulating cooling contactless control cabinet provided by the present invention, a heat exchange area 22 and a mounting area 21 are provided on the heat exchange plate 2. Coolant flows through the cooling channel 221 of the heat exchange area 22. Simultaneously, the thyristor 4 is mounted on the graphene plate 3 directly opposite the mounting area 21, and a portion of the graphene plate 3 extends from the mounting area 21 to the heat exchange area 22. This allows the heat generated by the thyristor 4 to be efficiently transferred to the heat exchange area 22 of the heat exchange plate 2 via the graphene plate 3 and carried away by the coolant, thereby achieving rapid heat dissipation of the thyristor 4 and achieving a better heat dissipation effect than air cooling. Furthermore, if the cooling channel 221 of the heat exchange area 22 and the graphene plate 3 are accidentally damaged, causing the coolant to leak out, the thyristor 4 is mounted on the graphene plate 3 directly opposite the mounting area 21, reducing the probability of the coolant contacting the thyristor 4 and improving safety performance.

[0035] In one embodiment, the heat exchange area 22 is disposed around the mounting area 21 , and the graphene plate 3 covers the heat exchange area 22 and the mounting area 21 .

[0036] In this embodiment, the heat exchange area 22 is arranged around the outer periphery of the installation area 21, and the graphene plate 3 covers both the heat exchange area 22 and the installation area 21, so that the heat of the thyristor 4 is transferred to the heat exchange area 22 more efficiently, further improving the heat dissipation capacity.

[0037] In one embodiment, the cooling channel 221 surrounds the heat exchange area 22 and has two ports 222; the cooling device 5 includes a circulation pipe 51, a liquid storage tank and a pump body 52. ​​The two ends of the circulation pipe 51 are respectively connected to the two ports 222. The liquid storage tank and the pump body 52 are sequentially arranged on the circulation pipe 51.

[0038] In this embodiment, the coolant in the liquid storage tank is circulated into the cooling channel 221 by the pump body 52, continuously dissipating heat from the thyristor 4. It should be noted that in one embodiment, a refrigerator is provided in the liquid storage tank to ensure the appropriate temperature of the coolant. At the same time, a thermal insulation layer is provided on the outer wall of the liquid storage tank to reduce the impact of the high temperature environment of the steel mill on the coolant in the liquid storage tank.

[0039] In one embodiment, the two ports 222 are located at the same end of the heat exchange plate 2 , and the end of the heat exchange plate 2 where the ports 222 are located extends out of the cabinet 1 .

[0040] In this embodiment, the heat exchange plate 2 is provided with a cooling channel 221 , and one end of the port 222 extends out of the cabinet 1 to facilitate docking with the circulation pipe 51 , thereby improving the convenience of maintenance and replacement.

[0041] In one embodiment, multiple groups of heat exchange plates 2 are provided, and the multiple groups of heat exchange plates 2 are arranged in sequence at intervals. Multiple groups of graphene plates 3 are provided corresponding to the heat exchange plates 2, and each graphene plate 3 is attached to the corresponding heat exchange plate 2. Multiple groups of thyristors 4 are provided, and the multiple groups of thyristors 4 are respectively arranged on multiple graphene plates 3; one port 222 of any two adjacent groups of heat exchange plates 2 is connected, and the two ends of the circulation pipe 51 are respectively connected to the ports 222 of the two heat exchange plates 2 located on the outside.

[0042] In this embodiment, multiple groups of heat exchange plates 2, graphene plates 3 and thyristors 4 are arranged in a one-to-one correspondence in the cabinet 1, and the sizes and models of the multiple groups of thyristors 4 can be set to different to improve the practicality of the control cabinet.

[0043] In one embodiment, each group includes multiple thyristors 4 , and the multiple thyristors 4 in the same group are arranged in sequence along a first direction, which intersects with the arrangement direction of the multiple groups of heat exchange plates 2 .

[0044] In this embodiment, the arrangement direction of the multiple thyristors 4 in the same group is set to intersect with the arrangement direction of the multiple groups of heat exchange plates 2, so as to improve the diversity of the control cabinet components and the space utilization of the control cabinet.

[0045] In one embodiment, the circulating cooling contactless control cabinet further includes a baffle, which is disposed on a side of the graphene plate 3 away from the heat exchange plate 2 and is arranged around the outer periphery of the installation area 21 .

[0046] In this embodiment, a baffle is also provided around the thyristor 4 to further prevent the coolant from flowing to the thyristor 4 when the cooling channel 221 of the heat exchange area 22 and the graphene plate 3 are damaged, thereby preventing the thyristor 4 from contacting the coolant and improving safety performance.

[0047] In one embodiment, a partition is provided at one end of the baffle away from the graphene plate 3 and extends in a direction away from the mounting area 21 , and the partition extends along the circumference of the baffle; the baffle is integrally provided with the graphene plate 3 .

[0048] In this embodiment, a partition is further provided at the end of the baffle away from the graphene plate 3. When the coolant flows out from the damaged area and flows along the baffle to the partition, it can be effectively blocked by the partition, ensuring that the thyristor 4 does not come into contact with the coolant. It should be noted that in one embodiment, the coolant is cooling water.

[0049] In one embodiment, the circulating cooling contactless control cabinet further includes a temperature measuring device 6 , which is disposed on the heat exchange plate 2 and is used to monitor the temperature of the heat exchange plate 2 .

[0050] In this embodiment, a temperature measuring device 6 is also provided to monitor the temperature of the heat exchange plate 2 in real time, so as to adjust the flow rate of the coolant delivered by the pump body 52 to the cooling channel 221 according to the temperature of the heat exchange plate 2. It should be noted that in this embodiment, the heat exchange plate 2 is made of aluminum alloy to improve heat dissipation capacity.

[0051] In order to better understand the present invention, the following Figures 1 to 3 The technical solution of the utility model is described in detail:

[0052] The pump 52, located on the side of the cabinet 1, powers the cooling water circulation. A temperature measuring device 6 monitors the temperature of the aluminum alloy heat exchange plate 2 and controls its operation. The thyristor 4 is directly fixed to the aluminum alloy heat exchange plate 2, which is attached to the graphene plate 3. This facilitates heat transfer and dissipation from the graphene plate 3, ensuring that the thyristor 4 is not affected by high temperatures and extending its service life.

[0053] The graphene plate 3 is attached to the aluminum alloy heat exchange plate 2. The high thermal conductivity of the graphene plate 3 is used to quickly transfer the heat energy generated by the thyristor 4 to the aluminum alloy heat exchange plate 2. The heat is then conducted away through the aluminum alloy heat exchange plate 2 or carried away by cooling water flowing through the aluminum alloy heat exchange plate 2.

[0054] The aluminum alloy heat exchange plate 2 is provided with cooling water flow holes. Multiple aluminum alloy heat exchange plates 2 are arranged in the cabinet 1. The flow holes between the aluminum alloy heat exchange plates 2 are connected and sealed by metal hoses 53, forming a closed-loop cooling water system for the cabinet 1.

[0055] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A circulating cooling contactless control cabinet, characterized in that: include: Cabinet; A heat exchange plate is installed in the cabinet and has an installation area and a heat exchange area, and a cooling flow channel is provided in the heat exchange area; A graphene plate is attached to the heat exchange plate and extends from the mounting area to the heat exchange area; a thyristor, mounted on a side of the graphene plate away from the heat exchange plate, with its orthographic projection on the heat exchange plate falling within the mounting area; and The cooling device is connected to the cooling channel and is used to transport cooling liquid into the cooling channel.

2. The circulating cooling contactless control cabinet according to claim 1, characterized in that: The heat exchange area is arranged around the installation area, and the graphene plate covers the heat exchange area and the installation area.

3. The circulating cooling contactless control cabinet according to claim 2, characterized in that: The cooling channel surrounds the heat exchange area and has two ports; The cooling device includes a circulation pipeline, a liquid storage tank, a coolant and a pump body. The two ends of the circulation pipeline are respectively connected to the two ports. The liquid storage tank, the coolant and the pump body are sequentially arranged on the circulation pipeline.

4. The circulating cooling contactless control cabinet according to claim 3, characterized in that: The two ports are located at the same end of the heat exchange plate, and the end of the heat exchange plate provided with the ports extends out of the cabinet.

5. The circulating cooling contactless control cabinet according to claim 3, characterized in that: The heat exchange plates are provided in multiple groups, and the multiple groups of heat exchange plates are arranged in sequence and spaced apart. The graphene plates are provided in multiple groups corresponding to the heat exchange plates, and each graphene plate is attached to the corresponding heat exchange plate. The thyristors are provided in multiple groups, and the multiple groups of thyristors are respectively provided on multiple graphene plates. One port of any two adjacent groups of the heat exchange plates is connected, and both ends of the circulation pipe are respectively connected to the ports of the two heat exchange plates located on the outside.

6. The circulating cooling contactless control cabinet according to claim 5, characterized in that: Each group of the thyristors is provided with a plurality of them, and the plurality of thyristors in the same group are arranged in sequence along a first direction, and the first direction intersects with the arrangement direction of the plurality of groups of heat exchange plates.

7. The circulating cooling contactless control cabinet according to claim 2, characterized in that: The circulating cooling type contactless control cabinet further includes a baffle, which is arranged on a side of the graphene plate away from the heat exchange plate and is arranged around the periphery of the installation area.

8. The circulating cooling contactless control cabinet according to claim 7, characterized in that: A partition is provided at one end of the baffle away from the graphene plate and extending in a direction away from the mounting area, wherein the partition extends along the circumference of the baffle; and / or, The baffle plate is integrally provided with the graphene plate.

9. The circulating cooling contactless control cabinet according to claim 1, characterized in that: The circulating cooling type contactless control cabinet further includes a temperature measuring device, which is disposed on the heat exchange plate and is used to monitor the temperature of the heat exchange plate.

10. The circulating cooling contactless control cabinet according to claim 1, characterized in that: The heat exchange plate is an aluminum alloy plate.

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