A cooling system for a medium frequency furnace control cabinet

Abstract

The present invention relates to the field of medium frequency furnace control cabinets, and in particular to a medium frequency furnace control cabinet cooling system, including a cabinet body, a mounting frame, a circulation pipe, a circulation mechanism and a heat dissipation mechanism. The cabinet body is divided into a number of installation rooms, and the installation rooms are respectively installed with mounting frames, and a number of circulation pipes are installed on the side and back of the mounting frame. The number of circulation pipes are arranged in a ring to form a heat dissipation group, and the number of heat dissipation groups are evenly arranged along the height direction. A temperature sensor is installed in the corresponding area of ​​each heat dissipation group; each circulation pipe is connected to a buffer box through a circulation mechanism, and the cooling medium in the buffer box is cooled by the heat dissipation mechanism. The present invention controls the number of circulation pipes participating in the circulation in each area through the temperature sensor of each area, thereby accurately adjusting the local temperature in the control cabinet; the cooling time is adjusted by measuring the temperature of the cooling medium after heat dissipation, so that the cooling medium participating in the circulation meets the cooling demand, thereby reducing the heat dissipation time and heat dissipation energy consumption to the greatest extent.

Description

Technical Field

[0001] The invention relates to the field of medium frequency furnace control cabinets, and in particular to a cooling system for a medium frequency furnace control cabinet. Background Art

[0002] The cooling system of the medium frequency furnace control cabinet is an important part of the medium frequency furnace. Its main function is to cool the electrical components in the control cabinet to ensure the normal operation of the medium frequency furnace. The traditional medium frequency furnace control cabinet cooling system generally uses cooling medium to reduce the temperature of the components in the entire control cabinet to prevent the components from being damaged due to overheating, thereby ensuring the stability and safety of the medium frequency furnace.

[0003] However, in actual application, due to the mismatch of working hours in different areas of the control cabinet, or the difference in heat temperature generated by components in different areas, it is difficult to meet the use requirements of different areas in the control cabinet during the overall cooling process of the control cabinet, resulting in the phenomenon that the cooling effect of the high-temperature area is not obvious and the low-temperature area occupies cooling resources, affecting the overall cooling efficiency. In addition, the overall cooling mode cannot efficiently configure and utilize cooling resources, which reduces energy utilization to a certain extent. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a medium frequency furnace control cabinet cooling system, which performs regional temperature control in the control cabinet by configuring cooling pipes in a regional manner, thereby solving the problems of low overall cooling efficiency and poor resource utilization. It is specifically achieved through the following technical solutions:

[0005] The present invention discloses a cooling system for a medium frequency furnace control cabinet, comprising a cabinet body, wherein the cabinet body is divided into a plurality of installation chambers, wherein a mounting frame is installed in the installation chamber, and a plurality of circulation pipes are installed on the side and back of the mounting frame;

[0006] A plurality of the circulation pipes are arranged in a ring to form a heat dissipation group, and the heat dissipation groups are evenly arranged along the height direction, and a temperature sensor is installed in the corresponding area of ​​each heat dissipation group.

[0007] The first end of the circulation pipe is communicated with the return pipe, the return pipe is communicated with the buffer box, and the buffer box is installed at the back of the cabinet.

[0008] A heat dissipation mechanism is also installed on the back of the cabinet, and the heat dissipation mechanism includes a heat dissipation plate, a heat dissipation pipe, a heat dissipation inlet pipe and a heat dissipation outlet pipe. The bottom of the buffer box is connected to the heat dissipation inlet pipe through a pipeline equipped with a circulation pump, the heat dissipation inlet pipe is connected to the first end of the heat dissipation pipe, a plurality of heat dissipation plates are installed on the heat dissipation pipe, the second end of the heat dissipation pipe is connected to the heat dissipation outlet pipe, a thermometer is installed on the heat dissipation outlet pipe, the heat dissipation outlet pipe is connected to the inlet pipe, and the inlet pipe is connected to the second ends of a plurality of the circulation pipes through the circulation mechanism.

[0009] The circulation mechanism includes a sleeve, which is installed on the mounting frame. A sliding square tube is sealingly and slidingly configured inside the sleeve. A docking through hole is provided on the side of the sliding square tube. The docking through hole can be connected to a plurality of liquid outlets provided on the side of the sleeve, and each of the liquid outlets is connected to the circulation pipe respectively.

[0010] The temperature sensor, the thermometer, the circulation mechanism and the switching part are connected to the controller signal, and the controller is installed on the cabinet.

[0011] Preferably, an electric telescopic rod is installed on the side of the sleeve, the electric telescopic rod is connected to the controller signal, and the output end of the electric telescopic rod passes through a long hole opened on the side of the sleeve and is fixed to the sliding square tube.

[0012] The sliding square tube is communicated with the connecting tube, the connecting tube is sealed and arranged in the flow dividing tube and moves along the flow dividing tube, and the flow dividing tube is communicated with the flow inlet tube.

[0013] Preferably, the heat dissipation mechanism further comprises a mounting column, wherein the mounting column is mounted on the back of the cabinet, and a plurality of fans are mounted on the mounting column along the height direction, wherein the fans are mounted on the back of a plurality of the heat dissipation plates.

[0014] The first end of the heat dissipation pipe is communicated with the heat dissipation inlet pipe, the heat dissipation inlet pipe is communicated with the buffer tank through a circulation pump, and the second end of the heat dissipation pipe is fixedly communicated with the heat dissipation outlet pipe.

[0015] Preferably, the second end of the heat dissipation pipe is connected to the heat dissipation outlet pipe or to the heat dissipation inlet pipe of the next group of heat dissipation mechanisms through a switching part, and the switching part includes a first mounting plate and a second mounting plate.

[0016] The first mounting plate is fixed to the heat dissipation inlet pipe and the heat dissipation outlet pipe of the next group, the second mounting plate is fixed to the heat dissipation pipe and the heat dissipation outlet pipe of the group, the first mounting plate and the second mounting plate are respectively sealed and slidably configured in the mounting grooves, and the mounting grooves are respectively opened on the upper and lower surfaces of the switching slider.

[0017] The switching slider is fixed to the output end of the electric cylinder, the electric cylinder is connected to the controller signal, and the electric cylinder is fixed to the fan.

[0018] The mounting groove is provided with a first connecting tube, a second connecting tube and a closed tube. The first connecting tube can connect the heat dissipation tube of this group with the heat dissipation inlet tube of the next group. The second connecting tube can connect the heat dissipation outlet tube of this group with the heat dissipation outlet tube of the next group. The closed tube can connect the heat dissipation tube of this group with the heat dissipation outlet tube of this group.

[0019] Preferably, when the heat dissipation pipe of the group is connected to the first connecting pipe, the second connecting pipe is just connected to the heat dissipation outlet pipe of the group; when the heat dissipation pipe of the group is connected to the closed pipe, the heat dissipation outlet pipe of the group is also just connected to the closed pipe.

[0020] Preferably, the first mounting plate and the second mounting plate are aligned vertically.

[0021] Preferably, the contour shape of the heat dissipation pipe is S-shaped.

[0022] Preferably, the first connecting pipe and the second connecting pipe pass through the switching slider.

[0023] After adopting the above technical solution, the beneficial effects of the present invention are:

[0024] 1. Use modular heat dissipation to dissipate heat in a specific area of ​​the control cabinet, so as to accurately adjust the local temperature in the control cabinet and avoid problems such as low cooling efficiency and energy waste caused by overall cooling.

[0025] 2. By controlling the number of connected circulation pipes, the heat dissipation rate of a specific area in the control cabinet can be adjusted to meet the rapid cooling needs of high temperatures.

[0026] 3. By monitoring the temperature of the cooling medium, the travel of the cooling medium in the cooling pipe can be flexibly adjusted to ensure that the cooling medium after heat dissipation fully meets the use requirements. This method not only realizes the cooling and heat dissipation of the cooling medium, but also reduces the heat dissipation time and heat dissipation energy consumption to the greatest extent, and improves the circulation efficiency of the cooling medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 This is a three-dimensional diagram of the cooling system of the medium frequency furnace control cabinet;

[0029] Figure 2 This is a three-dimensional diagram of the cooling system of the medium frequency furnace control cabinet from another perspective;

[0030] Figure 3 for Figure 1 Disassembly diagram of some parts in the figure;

[0031] Figure 4 for Figure 3 An enlarged view of some parts in the middle;

[0032] Figure 5 for Figure 4 Schematic diagram of partial dissection of some parts in the middle;

[0033] Figure 6 is a three-dimensional diagram of the heat dissipation mechanism;

[0034] Figure 7 It is the rear view of the heat dissipation mechanism;

[0035] Figure 8 for Figure 7 An enlarged view of some parts in the middle;

[0036] Fig. 9 It is a disassembly diagram of the switching unit;

[0037] Fig.10 for Fig. 9 Perspective view of some parts in the middle.

[0038] Description of reference numerals:

[0039] 101-cabinet, 102-mounting frame, 103-circulation pipe, 104-return pipe, 105-buffer box, 106-inlet pipe, 107-temperature sensor;

[0040] 200-circulation mechanism, 201-sleeve, 202-electric telescopic rod, 203-long hole, 204-sliding square tube, 205-connecting tube, 206-butting through hole, 207-liquid outlet, 208-diverter tube;

[0041] 300-heat dissipation mechanism, 301-mounting column, 302-heat dissipation plate, 303-heat dissipation pipe, 304-fan, 305-heat dissipation inlet pipe, 306-heat dissipation outlet pipe, 310-switching part, 311-first mounting plate, 312-second mounting plate, 313-mounting groove, 314-switching slider, 315-electric cylinder, 316-first connecting pipe, 317-second connecting pipe, 318-closing pipe;

[0042] 400-Controller. DETAILED DESCRIPTION

[0043] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0044] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation, connection" should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0045] The embodiment of the present invention provides a cooling system for a medium frequency furnace control cabinet, see Figures 1 to 10 , including a cabinet 101, the interior of the cabinet 101 is divided into a plurality of installation chambers along its length direction, each installation chamber is fixedly installed with a mounting frame 102, the interior of the mounting frame 102 close to the cabinet door side of the cabinet 101 is used for the installation of components, the interior of the mounting frame 102 away from the cabinet door side of the cabinet 101 and the side of the mounting frame 102 are fixedly installed with a plurality of circulation pipes 103, the circulation pipes 103 are used for the circulation of cooling medium, so as to achieve cooling in the cabinet 101.

[0046] Among them, Figure 1 , Figure 3 , Figure 4 As shown, a plurality of circulation pipes 103 are evenly arranged in a ring to form a heat dissipation group, and a plurality of heat dissipation groups are evenly distributed along the height direction of the mounting frame 102, so as to realize separate heat dissipation control at different positions, and a temperature sensor 107 is fixedly installed on the cabinet 101 in the corresponding area of ​​each heat dissipation group, which is used to complete the temperature measurement of the corresponding area of ​​the heat dissipation group. The temperature sensor 107 is connected to the controller 400 by signal, and the controller 400 is installed on the back of the cabinet 101.

[0047] like Figure 2 , Figure 3 , Figure 4 As shown, the first end of each circulation pipe 103 is fixedly connected to the return pipe 104, and the return pipe 104 is fixedly connected to the buffer box 105. The buffer box 105 is fixedly installed on the back bottom side of the cabinet 101 to collect the cooling medium returning from the circulation pipe 103 and the return pipe 104.

[0048] The bottom of the buffer box 105 is fixedly connected to the inlet of the heat dissipation mechanism 300 through a pipeline equipped with a circulation pump. The heat dissipation mechanism 300 is installed on the back side of the cabinet 101 to achieve heat dissipation of the cooling medium. The outlet of the heat dissipation mechanism 300 is fixedly connected to the inlet pipe 106. The inlet pipe 106 is connected to the second end of each circulation pipe 103 through the circulation mechanism 200. The circulation mechanism 200 is used to control the number of circulation pipes 103 that are connected.

[0049] The heat dissipation mechanism 300 and the circulation mechanism 200 are respectively connected to the controller 400 by signal. On the one hand, it is convenient for the controller 400 to control the number of connected circulation pipes 103 through the circulation mechanism 200, and on the other hand, it is convenient for the controller 400 to control the temperature of the cooling medium through the heat dissipation mechanism 300, thereby effectively realizing the separate control of the temperature of different position areas in the cabinet 101, and realizing intelligent adjustment of the regional heat dissipation speed by adjusting the temperature and flow of the cooling medium.

[0050] Of course, in order to facilitate the circulation of the cooling medium in each circulation pipe 103, a circulation pump can be installed on the return pipe 104 and the buffer tank 105 to meet their use requirements. Since this method is a conventional technical means for technicians in this field, it will not be repeated here.

[0051] As a further explanation of the above embodiments, see Figure 4 , Figure 5 The circulation mechanism 200 includes a sleeve 201, which is fixedly mounted on the mounting frame 102. An electric telescopic rod 202 is fixedly mounted on the side of the sleeve 201. The electric telescopic rod 202 is connected to the controller 400 by signal. The output end of the electric telescopic rod 202 passes through a long hole 203 provided on the side of the sleeve 201 and is fixedly connected to a sliding square tube 204. The sliding square tube 204 is sealingly and slidingly configured inside the sleeve 201, so that the electric telescopic rod 202 can drive the sliding square tube 204 to slide back and forth along the height direction of the sleeve 201.

[0052] The sliding square tube 204 is fixedly connected to the first end of the connecting tube 205, and the second end of the connecting tube 205 is sealed in the diverter tube 208 and moves along it. The diverter tube 208 is fixedly connected to the inlet tube 106, so the cooling medium in the inlet tube 106 can be transmitted to the inside of the sliding square tube 204 through the diverter tube 208 and the connecting tube 205.

[0053] A docking hole 206 is provided on the side of the sliding square tube 204, and the docking hole 206 can be connected to a liquid outlet 207 provided on the side of the sleeve 201. The plurality of liquid outlets 207 are evenly distributed along the length direction of the sleeve 201, and each liquid outlet 207 is fixedly connected to the circulation pipe 103, so that the cooling medium inside the sliding square tube 204 can flow smoothly into the circulation pipe 103 through the docking hole 206 and the liquid outlet 207, thereby realizing heat dissipation inside the cabinet 101.

[0054] This embodiment can control the number of connected circulation pipes 103 through the above structure, such as Figure 5As shown, when the electric telescopic rod 202 drives the sliding square tube 204 to move downward to the lowest point, the docking through hole 206 and all the liquid outlets 207 are staggered, resulting in the cooling medium in the sliding square tube 204 being unable to flow out through the docking through hole 206. When the electric telescopic rod 202 drives the sliding square tube 204 to move upward, the liquid outlet 207 at the bottom is first connected to the inside of the sliding square tube 204 through the docking through hole 206. At this time, the circulation pipe 103 connected to the bottom liquid outlet 207 is connected, thereby starting to transport the cooling medium to achieve cooling of the area; as the sliding square tube 204 continues to move upward, several circulation pipes 103 are connected one after another, thereby making the cooling efficiency of the area higher.

[0055] In the above embodiment, when the temperature value of a certain area in the cabinet 101 measured by the temperature sensor 107 of the area is higher than the preset value of the area, the controller 400 drives the sliding square tube 204 to move upward from the bottom of the sleeve 201 through the electric telescopic rod 202, and starts to cool the area. As the temperature value of the temperature sensor 107 of the area is measured in real time, the number of connected circulation pipes 103 is controlled in real time. While meeting the cooling demand of the area, the circulation of the cooling medium can be minimized to save energy and reduce consumption.

[0056] As a further explanation of the above embodiments of the present invention, see Figure 2 , Figure 6 , Figure 7 , Figure 8 The heat dissipation mechanism 300 includes a mounting column 301, which is vertically mounted on the back of the cabinet 101. The mounting column 301 is fixed with a plurality of fans 304 in sequence along its height direction. A plurality of heat dissipation plates 302 are evenly fixed on the back of each fan 304, and heat dissipation pipes 303 are fixed on the plurality of heat dissipation plates 302.

[0057] Among them, the heat dissipation pipe 303 is arranged in an S shape, and the cooling medium circulates inside the heat dissipation pipe 303. The heat dissipation pipe 303 dissipates the cooling medium inside it to the outside through the evenly installed and distributed heat dissipation plates 302. Since the heat dissipation area is increased, the heat dissipation speed can be effectively improved. In addition, the air circulation inside the heat dissipation plate 302 is achieved through the fan 304, which further accelerates the heat dissipation speed, thereby achieving rapid cooling of the cooling medium.

[0058] The first end of the heat dissipation pipe 303 is fixedly connected to the heat dissipation inlet pipe 305, and the heat dissipation inlet pipe 305 is fixedly connected to the bottom of the buffer tank 105 through a circulation pump. The second end of the heat dissipation pipe 303 is fixedly connected to the heat dissipation outlet pipe 306 through a switching part 310. A thermometer is installed on the heat dissipation outlet pipe 306. The thermometer is connected to the controller 400 signal for measuring the temperature of the cooling medium in the heat dissipation outlet pipe 306. The heat dissipation outlet pipe 306 is fixedly connected to the inlet pipe 106.

[0059] The cooling medium is temporarily stored in the buffer box 105, and can release part of the heat through natural heat dissipation during the storage process. The cooling medium with higher temperature in the buffer box 105 is located in the upper layer of the buffer box 105 due to its lower density, and the cooling medium with lower temperature located at the bottom of the buffer box 105 first participates in the circulation heat dissipation.

[0060] The cooling medium at the bottom of the buffer box 105 is first pumped into the heat dissipation pipe 303 through the heat dissipation inlet pipe 305. Under the joint action of the fan 304 and the heat sink 302, the cooling medium in the heat dissipation pipe 303 is cooled. The cooled cooling medium is transported to the inlet pipe 106 through the heat dissipation outlet pipe 306 to participate in the cooling in the cabinet 101. At the same time, the thermometer installed on the heat dissipation outlet pipe 306 measures the temperature of the cooling medium in real time. When the temperature of the cooling medium in the heat dissipation outlet pipe 306 is higher than the preset threshold, the controller 400 controls the cooling medium in the heat dissipation pipe 303 to enter the next group of heat dissipation pipes 303 for continued cooling through the switching unit 310 until the temperature of the cooling medium in the heat dissipation outlet pipe 306 meets the circulation heat dissipation requirements.

[0061] like Fig. 9 , Fig.10 As shown, the switching part 310 includes a first mounting plate 311 and a second mounting plate 312, the first mounting plate 311 is respectively fixed to the heat dissipation inlet pipe 305 and the heat dissipation outlet pipe 306 of the next group, the second mounting plate 312 is respectively fixed to the heat dissipation pipe 303 and the heat dissipation outlet pipe 306 of the group, the first mounting plate 311 and the second mounting plate 312 are aligned up and down, the first mounting plate 311 and the second mounting plate 312 are respectively sealed and arranged in the mounting groove 313 opened on the upper and lower surfaces of the switching slider 314 and can slide back and forth, the switching slider 314 is fixed to the output end of the electric cylinder 315, the electric cylinder 315 is connected to the controller 400 signal, and the electric cylinder 315 is fixed to the fan 304.

[0062] The mounting groove 313 is respectively provided with a first connecting tube 316, a second connecting tube 317 and a closing tube 318. The first connecting tube 316 and the second connecting tube 317 penetrate the upper and lower surfaces of the switching slider 314. The first connecting tube 316 can connect the heat dissipation tube 303 of this group with the heat dissipation inlet tube 305 of the next group. The second connecting tube 317 can connect the heat dissipation outlet tube 306 of this group with the heat dissipation outlet tube 306 of the next group. The closing tube 318 can connect the heat dissipation tube 303 of this group with the heat dissipation outlet tube 306 of this group.

[0063] When the heat dissipation pipe 303 of the group is connected with the first connecting pipe 316, the second connecting pipe 317 is just connected with the heat dissipation outlet pipe 306 of the group. At this time, the cooling medium that dissipates heat through the heat dissipation pipe 303 of the group flows into the heat dissipation inlet pipe 305 and the heat dissipation pipe 303 of the next group through the first connecting pipe 316 to continue to dissipate heat, and finally flows back to the heat dissipation outlet pipe 306 of the group through the heat dissipation outlet pipe 306 of the next group and the second connecting pipe 317; when the heat dissipation pipe 303 of the group is connected with the closed pipe 318, the heat dissipation outlet pipe 306 of the group is also just connected with the closed pipe 318. At this time, the cooling medium that dissipates heat through the heat dissipation pipe 303 of the group directly flows back to the heat dissipation outlet pipe 306 of the group through the closed pipe 318, and then participates in the circulating cooling in the cabinet 101.

[0064] The switching between the above two states is achieved by the electric cylinder 315 driving the switching slider 314 to slide back and forth. Fig. 9 As shown, when the electric cylinder 315 is retracted to the shortest state or the electric cylinder 315 is extended to the longest state, the above two connection states are respectively realized, thereby effectively controlling the cooling time of the cooling medium, so that the cooling medium that finally participates in the circulating heat dissipation meets the use requirements.

[0065] According to the embodiments of the present invention as described above, these embodiments do not describe all the details in detail, nor do they limit the invention to the only specific embodiments. Obviously, based on the above description, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can make good use of the present invention and the modified use based on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A medium frequency furnace control cabinet cooling system, comprising a cabinet body (101), characterized in that: The cabinet (101) is divided into a plurality of installation rooms, each of which is equipped with an installation frame (102), and a plurality of circulation pipes (103) are installed on the side and back of the installation frame (102); A plurality of the circulation pipes (103) are arranged in a ring to form a heat dissipation group, the plurality of heat dissipation groups are evenly arranged along the height direction, and a temperature sensor (107) is installed in a corresponding area of ​​each heat dissipation group; The first end of the circulation pipe (103) is in communication with the return pipe (104), the return pipe (104) is in communication with the buffer box (105), and the buffer box (105) is installed on the back of the cabinet (101); A heat dissipation mechanism (300) is also installed at the back of the cabinet (101), the heat dissipation mechanism (300) comprising a heat dissipation plate (302), a heat dissipation pipe (303), a heat dissipation inlet pipe (305) and a heat dissipation outlet pipe (306); the bottom of the buffer box (105) is connected to the heat dissipation inlet pipe (305) via a pipeline installed with a circulation pump; the heat dissipation inlet pipe (305) is connected to a first end of the heat dissipation pipe (303); a plurality of heat dissipation plates (302) are installed on the heat dissipation pipe (303); a second end of the heat dissipation pipe (303) is connected to the heat dissipation outlet pipe (306); a thermometer is installed on the heat dissipation outlet pipe (306); the heat dissipation outlet pipe (306) is connected to an inlet pipe (106); and the inlet pipe (106) is connected to the second ends of a plurality of circulation pipes (103) via a circulation mechanism (200); The circulation mechanism (200) comprises a sleeve (201), the sleeve (201) being mounted on the mounting frame (102), a sliding square tube (204) being sealingly and slidably arranged inside the sleeve (201), a docking through hole (206) being provided on a side of the sliding square tube (204), the docking through hole (206) being able to communicate with a plurality of liquid outlets (207) provided on a side of the sleeve (201), and each of the liquid outlets (207) being respectively connected to the circulation tube (103); The temperature sensor (107), the thermometer, the circulation mechanism (200) and the switching unit (310) are signal-connected to a controller (400), and the controller (400) is installed on the cabinet (101); An electric telescopic rod (202) is installed on the side of the sleeve (201), the electric telescopic rod (202) is connected to the controller (400) by signal, and the output end of the electric telescopic rod (202) passes through a long hole (203) provided on the side of the sleeve (201) and is fixed to the sliding square tube (204); The sliding square tube (204) is in communication with the connecting tube (205), the connecting tube (205) is sealed and arranged in the flow diversion tube (208) and moves along the flow diversion tube (208), and the flow diversion tube (208) is in communication with the flow inlet tube (106).

2. The cooling system for the medium frequency furnace control cabinet according to claim 1 is characterized in that: The heat dissipation mechanism (300) further comprises a mounting column (301), wherein the mounting column (301) is mounted on the back of the cabinet (101), and a plurality of fans (304) are mounted on the mounting column (301) along the height direction, wherein the fans (304) are mounted on the back of a plurality of the heat dissipation plates (302); The first end of the heat dissipation pipe (303) is in communication with the heat dissipation inlet pipe (305), the heat dissipation inlet pipe (305) is in communication with the buffer tank (105) via a circulation pump, and the second end of the heat dissipation pipe (303) is fixedly connected with the heat dissipation outlet pipe (306).

3. The cooling system for the medium frequency furnace control cabinet according to claim 2 is characterized in that: The second end of the heat dissipation pipe (303) is connected to the heat dissipation outlet pipe (306) or to the heat dissipation inlet pipe (305) of the next group of heat dissipation mechanisms (300) through a switching part (310), and the switching part (310) comprises a first mounting plate (311) and a second mounting plate (312); The first mounting plate (311) is fixed to the heat dissipation inlet pipe (305) and the heat dissipation outlet pipe (306) of the next group, the second mounting plate (312) is fixed to the heat dissipation pipe (303) and the heat dissipation outlet pipe (306) of the group, the first mounting plate (311) and the second mounting plate (312) are respectively sealed and slidably arranged in the mounting groove (313), and the mounting groove (313) is respectively opened on the upper and lower surfaces of the switching slider (314); The switching slider (314) is fixed to the output end of the electric cylinder (315), the electric cylinder (315) is signal-connected to the controller (400), and the electric cylinder (315) is fixed to the fan (304); The mounting groove (313) is provided with a first connecting tube (316), a second connecting tube (317) and a closing tube (318); the first connecting tube (316) is capable of connecting the heat dissipation tube (303) of the group to the heat dissipation inlet tube (305) of the next group; the second connecting tube (317) is capable of connecting the heat dissipation outlet tube (306) of the group to the heat dissipation outlet tube (306) of the next group; and the closing tube (318) is capable of connecting the heat dissipation tube (303) of the group to the heat dissipation outlet tube (306) of the group.

4. The cooling system for the medium frequency furnace control cabinet according to claim 3 is characterized in that: When the heat dissipation pipe (303) of the group is connected to the first connecting pipe (316), the second connecting pipe (317) is just connected to the heat dissipation outlet pipe (306) of the group; when the heat dissipation pipe (303) of the group is connected to the closed pipe (318), the heat dissipation outlet pipe (306) of the group is also just connected to the closed pipe (318).

5. The cooling system for the medium frequency furnace control cabinet according to claim 3 is characterized in that: The first mounting plate (311) and the second mounting plate (312) are aligned vertically.

6. The cooling system for the medium frequency furnace control cabinet according to claim 3 is characterized in that: The profile shape of the heat dissipation pipe (303) is S-shaped.

7. The cooling system for the medium frequency furnace control cabinet according to claim 3 is characterized in that: The first connecting pipe (316) and the second connecting pipe (317) pass through the switching slider (314).

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