Reactive compensation low-voltage safety power distribution cabinet

Abstract

The invention relates to the field of power protection, in particular to a reactive compensation low-voltage safety power distribution cabinet. Comprising a cabinet body 1, an upper cabinet door 2, a lower cabinet door 3, a cooling assembly 7, a condensation assembly 8 and a compensation assembly 9, the upper cabinet door 2 and the lower cabinet door 3 are rotatably mounted on one side of the cabinet body 1, the compensation assembly 9 is fixedly connected below the fuse 4, the cooling assembly 7 comprises a water storage tank 71, a water pump 72, a cooling plate 73 and a cooling hole 74, the water storage tank 71 is fixedly mounted at the lower end of the cabinet body 1, the water pump 72 is fixedly mounted on one side of the water storage tank 71, the cooling plate 73 is fixedly connected below the compensation assembly 9 and electrically connected with the compensation assembly 9, and the cooling hole 74 is formed in the lower end of the cabinet body 1. The cooling holes 74 are formed in the two sides of the cabinet body 1, the upper ends of the cooling holes 74 are communicated with the cooling plate 73, the lower ends of the cooling holes 74 are communicated with the water pump 72, and the water pump 72 drives cooling liquid to cool the compensation assembly 9 through the cooling plate 73.

Description

Technical Field

[0001] The invention relates to the field of power protection, in particular to a reactive power compensation low-voltage safety distribution cabinet. Background Art

[0002] Reactive power compensation cabinet is an important equipment used in power system, mainly used to improve the power factor of power grid, reduce power loss, improve voltage quality and improve power supply efficiency. Reactive power compensation cabinet reduces reactive current flow in power grid by providing or absorbing reactive power, thereby reducing line loss, improving power grid stability and equipment utilization. The working process of reactive power compensation is to identify reactive power demand through power factor automatic compensation controller, connect one or more groups of capacitors to the circuit through switching, change the phase of voltage, and improve power factor.

[0003] When the existing capacitor cabinet is in use, the ambient temperature of the capacitor cabinet cannot exceed 30 degrees Celsius, and the temperature of the capacitor body cannot exceed 60 degrees Celsius. Excessive temperature will cause damage to the capacitor. Most of the existing distribution cabinets use heat sinks and fans for cooling. However, when in an environment with humid air and poor ventilation such as a basement, the cooling effect of the heat sink and fan is poor and cannot meet the cooling requirements of the distribution cabinet. In addition, the reactive power compensation cabinet is prone to condensation when working in such a humid place. In severe cases, water may accumulate in the cabinet, damaging the electronic components in the distribution cabinet and causing serious safety hazards. Most of the existing distribution cabinets avoid condensation by sealing and installing fans, but the capacitors need to be checked daily. When the cabinet door is opened and closed, water vapor will still enter the cabinet, and the closed environment will affect the heat dissipation of the capacitor. At the same time, because the air in the basement is humid, the effect of installing a fan is not obvious, and dust and dirt will enter the cabinet.

[0004] Therefore, in order to solve the above problems, a reactive power compensation low-voltage safety distribution cabinet is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a reactive compensation low-voltage safety distribution cabinet to solve the problem that in a scene where the air is humid and not ventilated, the reactive compensation distribution cabinet has poor heat dissipation effect and is prone to condensation, which causes electronic components to be easily damaged and easily creates safety hazards. By using water cooling to cool and remove water vapor in the distribution cabinet, the heat dissipation effect is ensured while avoiding condensation and water accumulation in the cabinet.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A reactive power compensation low-voltage safety distribution cabinet, comprising a cabinet, an upper cabinet door, a lower cabinet door, a fuse, and a main switch, wherein the terminal block is characterized in that it also includes a cooling component, a condensing component, and a compensation component; the cabinet is divided into an upper cabinet and a lower cabinet, the upper cabinet door and the lower cabinet door are rotatably mounted on one side of the cabinet and correspond to the upper cabinet and the lower cabinet, the fuse is fixedly mounted on the inside of the upper cabinet, the terminal block is fixedly connected to one side of the upper cabinet, the compensation component is fixedly connected below the fuse, the cooling component comprises a water storage tank, a water pump, a cooling plate, and a cooling hole, the water storage tank is fixedly mounted on the lower end of the cabinet, the water pump is fixedly mounted on one side of the water storage tank, the cooling plate is fixedly connected below the compensation component, the main switch is fixedly connected above the cooling plate, and is electrically connected to the compensation component, the cooling hole is opened inside both sides of the cabinet, the upper end is connected to the cooling plate, and the lower end is connected to the water pump, and the water pump drives the coolant to cool the compensation component through the cooling plate.

[0008] Preferably, the condensation assembly includes a condensation plate, a reflux plate, and a reflux hole. The condensation plate is fixedly installed inside the cabinet, and a condensation hole is opened inside the condensation plate and penetrates the condensation plate. Both ends of the condensation hole are connected to cooling holes on both sides of the cabinet. The reflux plate is fixedly connected to both sides of the inner wall of the cabinet. The reflux hole is opened inside both sides of the cabinet, and the upper end is connected to the reflux plate and the lower end is connected to the water tank.

[0009] In the above scheme, the condensation plate is connected to the condensation hole. When the water pump presses the cooling fluid into the cooling hole, the liquid in the cooling hole will also flow through the condensation hole. At this time, because the capacitor releases heat during operation, the water vapor in the air will be evaporated into water vapor and move upward. When it contacts the condensation plate, it will liquefy into water droplets and flow along the inner walls on both sides to the reflux plate, and flow into the return water tank along the reflux hole. The whole process will continue to occur during the operation of the capacitor, which will continuously reduce the water vapor inside the cabinet and ensure that condensation and water accumulation will not occur.

[0010] Preferably, guide grooves are provided on the inner walls on both sides of the cabinet, and the guide grooves penetrate the upper cabinet and the lower cabinet and are connected to the return plate at the lower end.

[0011] In the above scheme, a guide groove is opened to penetrate the upper and lower cabinets to prevent water vapor from adhering to the inner walls on both sides of the cabinet, and the droplets generated on the two walls of the cabinet are guided to the return plate, thereby accelerating the process of removing water vapor in the cabinet.

[0012] Preferably, the compensation component includes an automatic power factor compensation controller, a capacitor, an adjustment frame, an adjustment controller, an adjustment gear 1, and an adjustment gear 2. The automatic power factor compensation controller is fixedly mounted on the upper end of the condensing plate, the adjustment frame is fixedly mounted on the upper end of the cooling plate, the adjustment controller is fixedly mounted on the upper end of the adjustment frame and is electrically connected to the automatic power factor compensation controller. The adjustment gear 1 is rotatably connected to the upper end of the adjustment frame, a plurality of capacitors are fixedly mounted on the upper end of the cooling plate, and the adjustment gear 2 is fixedly connected to the upper end of the capacitor and meshes with the adjustment gear 1.

[0013] In the above scheme, the existing reactive power compensation process is to identify the reactive power demand through the power factor automatic compensation controller, connect one or more groups of capacitors to the circuit through switching switches, change the phase of the voltage, and thus improve the power factor. This working method cannot meet the more detailed reactive power compensation amount. At the same time, because they are connected to the circuit in groups, it is easy for a group of capacitors to be compensated for a long time. At this time, only one group of capacitors is working to generate heat, resulting in excessive local temperature, which is easy to cause damage to the capacitor. In this scheme, when the circuit needs reactive power compensation, the power factor automatic compensation controller will control the adjustment controller to rotate, drive the adjustment gear 1 and the adjustment gear 2 to rotate, so that the overlapping area in the adjustable capacitor increases, and then the capacitance in the connected circuit increases.

[0014] Preferably, the cooling holes and the return holes are both opened inside the cabinet on both sides and arranged linearly, and the cooling holes and the return holes are arranged alternately.

[0015] In the above scheme, when the condensed water flows back into the water storage tank, the condensed water will absorb the temperature of the cooling water, further improving the cooling efficiency.

[0016] Preferably, the capacitor is an adjustable capacitor, and a plurality of capacitors are simultaneously connected to the automatic power factor compensation controller.

[0017] In the above scheme, the use of adjustable capacitors can improve the precision of the capacitance of the connected circuit, and the simultaneous connection of multiple capacitors to the power factor automatic compensation controller can ensure that when the capacitors perform reactive power compensation, the heat generated by the capacitors is uniform and there will be no local over-temperature.

[0018] Preferably, a mounting hole is provided inside the adjusting frame, the upper end of the mounting hole is connected to the adjusting controller, and the lower end is connected to the cooling plate, a throttle valve is installed in the mounting hole, the upper end of the throttle valve is provided with a threaded groove to cooperate with the adjusting controller, and the lower end is provided with a throttle hole corresponding to the cooling groove in the cooling plate.

[0019] In the above scheme, a throttle valve is installed inside the adjustment frame, and the throttle hole at the lower end of the throttle valve corresponds to the cooling groove in the cooling plate. When the capacitor needs to be connected to the circuit and the capacitance becomes larger, the capacitor will generate more heat. The adjustment controller rotates to drive the adjustment gear 1 and the adjustment gear 2 to rotate, thereby driving the capacitance of the adjustable capacitor connected to the circuit to increase. At the same time, the lower end drives the throttle valve to rise. At this time, the overlapping area of ​​the throttle hole and the cooling groove increases, thereby increasing the circulation of cooling water and enhancing the heat dissipation capacity. At the same time, because the water output of the water pump is fixed, the coolant entering the condensation plate is reduced, reducing the condensed water on the condensation plate. Because the condensation of water vapor requires the release of heat, the formation of condensed water is reduced, thereby reducing the temperature in the cabinet from the side.

[0020] Preferably, a one-way valve is installed in the reflux hole.

[0021] In the above scheme, in order to prevent water vapor from entering the cabinet through the reflux hole, a one-way valve is arranged in the reflux hole to prevent water vapor from entering and keep the cabinet dry.

[0022] Preferably, the lower end of the condensation plate is in an arc shape with an arc angle between 18 degrees and 45 degrees, and a condensation groove is provided at the top.

[0023] In the above scheme, the lower end of the condensation plate is set to an arc shape to prevent water vapor from dripping directly onto the capacitor surface after condensation. At the same time, a condensation groove is opened on the top. When the upper air encounters the condensation plate, it will also condense in the condensation groove and enter the reflux hole along the guide groove.

[0024] Preferably, a water outlet hole is provided at the upper end of the water storage tank.

[0025] In the above scheme, when the water level in the water storage tank is too high, in order to prevent the coolant from entering the reflux hole, a water outlet hole is opened, and when the water level is higher than the water outlet hole, excess water flows out.

[0026] The beneficial effects of the present invention are as follows:

[0027] The existing reactive power compensation distribution cabinet cannot cope with the environment when the air is humid and not ventilated, the heat dissipation effect is poor, and dust and dirt are easily caused to enter the cabinet, and condensation is easily generated during operation. In severe cases, water may even accumulate in the cabinet, damaging the electronic components in the distribution cabinet. The present invention uses water cooling to meet the heat dissipation problem of the distribution cabinet under the premise of a closed structure, reduces the entry of water vapor, and at the same time uses the heat generated by cooling water and the capacitor itself to continuously discharge water vapor, thereby ensuring a dry environment in the cabinet and avoiding condensation and water accumulation.

[0028] The present invention installs a throttle valve inside the regulating frame, and the throttle hole at the lower end of the throttle valve corresponds to the cooling groove in the cooling plate. When the capacitor needs to be connected to the circuit and the capacitance becomes larger, the heat generated by the capacitor will be more. The regulating controller rotates to drive the regulating gear 1 and the regulating gear 2 to rotate, thereby driving the capacitance of the adjustable capacitor connected to the circuit to increase. At the same time, the lower end drives the throttle valve to rise. At this time, the overlapping area of ​​the throttle hole and the cooling groove increases, thereby increasing the circulation of cooling water and enhancing the heat dissipation capacity. At the same time, because the water output of the water pump is fixed, the coolant entering the condensing plate is reduced, and the condensed water on the condensing plate is reduced. Because the condensation of water vapor requires the release of heat, the temperature in the cabinet is reduced from the side. The constant temperature in the cabinet is maintained.

[0029] The present invention can improve the precision of the capacitance of the connected circuit by using an adjustable capacitor, and multiple capacitors are simultaneously connected to the power factor automatic compensation controller to ensure that when the capacitor performs reactive power compensation, the capacitor generates heat evenly and does not have a situation where the local temperature is too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] The above and other aspects of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0032] Figure 1 It is a front view of the present invention as a whole;

[0033] Figure 2 It is an axle side schematic diagram of the present invention as a whole;

[0034] Figure 3 It is a bottom schematic diagram of the present invention as a whole;

[0035] Figure 4 This is a schematic diagram of the condensation assembly of the present invention.

[0036] Figure 5 is a schematic diagram of the shaft side of the compensation assembly of the present invention;

[0037] Figure 6 is a transverse cross-sectional view of the cabinet of the present invention;

[0038] Figure 7 It is a schematic diagram of the axial side of the condensation plate of the present invention;

[0039] Figure 8It is a schematic diagram of the axial side of the cooling plate of the present invention;

[0040] Fig. 9 is a cross-sectional view of the regulating valve of the present invention;

[0041] In the figure: 1. cabinet; 11. upper cabinet; 12. lower cabinet; 13. guide groove; 2. upper cabinet door; 3. lower cabinet door; 4. fuse; 5. main switch; 6. terminal block; 7. cooling assembly; 71. water storage tank; 711. water outlet; 72. water pump; 73. cooling plate; 731. cooling groove; 74. cooling hole; 8. condensation assembly; 81. condensation plate; 811. condensation hole; 812. condensation groove; 82. return plate; 83. return hole; 831. check valve; 9. compensation assembly; 91. power factor automatic compensation controller; 92. capacitor; 93. adjustment frame; 931. mounting hole; 932. throttle valve; 9321. threaded groove; 9322. throttle hole; 94. adjustment controller; 95. adjustment gear one; 96. adjustment gear two. DETAILED DESCRIPTION

[0042] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] like Figures 1 to 3 and Figure 6 As shown, a reactive compensation low-voltage safety distribution cabinet includes a cabinet 1, an upper cabinet door 2, a lower cabinet door 3, a fuse 4, a main switch 5, and a terminal block 6. It is characterized in that it also includes a cooling component 7, a condensing component 8, and a compensation component 9; the cabinet 1 is divided into an upper cabinet 11 and a lower cabinet 12, the upper cabinet door 2 and the lower cabinet door 3 are rotatably installed on one side of the cabinet 1 and correspond to the upper cabinet 11 and the lower cabinet 12, the fuse 4 is fixedly installed on the inner side of the upper cabinet 11, the terminal block 6 is fixedly connected to one side of the upper cabinet 11, and the compensation component 9 is fixedly connected below the fuse 4 The cooling assembly 7 includes a water tank 71, a water pump 72, a cooling plate 73, and a cooling hole 74. The water tank 71 is fixedly installed at the lower end of the cabinet 1, and the water pump 72 is fixedly installed on one side of the water tank 71. The cooling plate 73 is fixedly connected below the compensation assembly 9. The main switch 5 is fixedly connected above the cooling plate 73 and is electrically connected to the compensation assembly 9. The cooling hole 74 is opened inside both sides of the cabinet 1, and the upper end is connected to the cooling plate 73, and the lower end is connected to the water pump 72. The water pump 72 drives the coolant to cool the compensation assembly 9 through the cooling plate 73.

[0044] like Figure 4 , Figure 6 and Figure 7As shown, the condensation assembly 8 includes a condensation plate 81, a return plate 82, and a return hole 83. The condensation plate 81 is fixedly installed inside the cabinet 1, and a condensation hole 811 is opened inside the condensation plate 81 to penetrate the condensation plate 81. Both ends of the condensation hole 811 are connected to the cooling holes 74 on both sides of the cabinet 1. The return plate 82 is fixedly connected to both sides of the inner wall of the cabinet 1. The return hole 83 is opened inside both sides of the cabinet 1, the upper end is connected to the return plate 82, and the lower end is connected to the water storage tank 71. The condensation plate 81 is connected to the condensation hole 811, and the water pump 7 When the cooling fluid is pressed into the cooling hole 74, the liquid in the cooling hole 74 will also flow through the condensation hole 811. At this time, because the capacitor 92 releases heat during operation, the water vapor in the air will be evaporated into water vapor and move upward. When it contacts the condensation plate 81, it will liquefy into water droplets and flow along the inner walls on both sides to the return plate 82, and flow back into the water storage tank 71 along the return hole 83. The whole process will continue to occur during the operation of the capacitor 92, which will continuously reduce the water vapor inside the cabinet 1 and ensure that condensation and water accumulation will not occur.

[0045] like Figure 2 As shown, the inner walls on both sides of the cabinet 1 are provided with guide grooves 13, which penetrate the upper cabinet 11 and the lower cabinet 12 and are connected to the return plate 82 at the lower end. The guide grooves 13 are provided to penetrate the cabinet 1 to prevent water vapor from adhering to the inner walls on both sides of the cabinet 1, and to guide the droplets generated on the two walls of the cabinet 1 to the return plate 82, thereby accelerating the process of removing water vapor in the cabinet.

[0046] like Figure 3 and Figure 5As shown, the compensation component 9 includes a power factor automatic compensation controller 91, a capacitor 92, an adjustment frame 93, an adjustment controller 94, an adjustment gear 1 95, and an adjustment gear 2 96. The power factor automatic compensation controller 91 is fixedly mounted on the upper end of the condensing plate 81, the adjustment frame 93 is fixedly mounted on the upper end of the cooling plate 73, the adjustment controller 94 is fixedly mounted on the upper end of the adjustment frame 93, and is electrically connected to the power factor automatic compensation controller 91. The adjustment gear 1 95 is rotatably connected to the upper end of the adjustment frame 93, and a plurality of capacitors 92 are fixedly mounted on the upper end of the cooling plate 73. The adjustment gear 2 96 is fixedly connected to the upper end of the capacitor 92 and meshes with the adjustment gear 1 95. When the circuit needs to perform reactive power compensation, the power factor automatic compensation controller 91 will control the adjustment controller 94 to rotate, drive the adjustment gear 1 95 and the adjustment gear 2 96 to rotate, so that the overlap area in the capacitor 92 increases, thereby increasing the capacitance in the connected circuit. The capacitor 92 is an adjustable capacitor, and a plurality of capacitors 92 are simultaneously connected to the power factor automatic compensation controller 91. The use of adjustable capacitors can improve the precision of the capacitance of the connected circuit, and connecting multiple capacitors 92 to the power factor automatic compensation controller 91 at the same time can ensure that when the capacitors 92 perform reactive power compensation, the multiple capacitors 92 generate heat evenly and there will be no local overtemperature.

[0047] like Figure 6 As shown, the cooling holes 74 and the return holes 83 are arranged linearly inside the cabinet 1 on both sides, and the cooling holes 74 and the return holes 83 are arranged alternately. When the condensed water flows back into the water storage tank 71, the condensed water absorbs the temperature of the cooling water, further improving the cooling efficiency.

[0048] like Figure 8 and Fig. 9As shown, a mounting hole 931 is provided inside the adjusting frame 93, the upper end of the mounting hole 931 is connected to the adjusting controller 94, and the lower end is connected to the cooling plate 73, a throttle valve 932 is installed in the mounting hole 931, and a threaded groove 9321 is provided on the upper end of the throttle valve 932 to cooperate with the adjusting controller 94, and a throttle hole 9322 is provided on the lower end to correspond to the cooling groove 731 in the cooling plate 73. A throttle valve 932 is installed inside the adjustment frame 93, and the throttle hole 9322 at the lower end of the throttle valve 932 corresponds to the cooling groove 731 in the cooling plate 73. When the capacitor 92 needs to be connected to the circuit and the capacitance becomes larger, the capacitor 92 will generate more heat. The adjustment controller 94 rotates to drive the adjustment gear 1 95 and the adjustment gear 2 96 to rotate, thereby driving the capacitor 92 to connect to the circuit. When the capacitance increases, the lower end drives the throttle valve 932 to rise. At this time, the overlapping area of ​​the throttle hole 9322 and the cooling groove 731 increases, thereby increasing the circulation of cooling water and enhancing the heat dissipation capacity. At the same time, because the water output of the water pump 72 is fixed, the coolant entering the condensation plate 81 is reduced, thereby reducing the condensed water on the condensation plate 81. Because the condensation of water vapor requires the release of heat, the formation of condensed water is reduced, thereby reducing the temperature in the cabinet 1 from the side.

[0049] like Figure 6 As shown, a one-way valve 831 is installed in the reflux hole 83 to prevent external water vapor from entering the cabinet 1 through the reflux hole 83.

[0050] like Figure 7 As shown, the lower end of the condensation plate 81 is in an arc shape, and the arc is between 18 degrees and 45 degrees, and a condensation groove 812 is opened at the top. The lower end of the condensation plate 81 is set to be an arc shape to prevent water vapor from dripping directly on the surface of the capacitor 92 after condensation. At the same time, the condensation groove 812 is opened at the top. When the upper air encounters the condensation plate 81, it will also condense in the condensation groove 812, and at the same time, it will enter the reflux hole 83 along the guide groove 13.

[0051] like Figure 3 As shown, a water outlet 711 is provided at the upper end of the water storage tank 71. When the water level in the water storage tank 71 is too high, in order to prevent the coolant from entering the return hole 83, the water outlet 711 is provided, and when the water level is higher than the water outlet 711, the excess water flows out.

[0052] Working process: When the capacitor 92 needs to be connected to the circuit, the regulating controller 94 rotates to drive the regulating gear 1 95 and the regulating gear 2 96 to rotate, thereby driving the capacitor 92 to be connected to the circuit. At this time, the water pump 72 introduces the coolant from the water tank 71 into the cooling hole 74. A part of the coolant passes through the cooling groove 731 to cool the capacitor 92, and the other part passes through the condensation plate 81 to condense the water vapor in the cabinet 1. The condensed water flows back to the water tank 71 through the reflux plate 82 and the reflux hole 83.

[0053] Specifically: The process of reactive power compensation of capacitor 92: When capacitor 92 needs to be connected to the circuit for reactive power compensation, power factor automatic compensation controller 91 controls adjustment controller 94 to rotate and drives adjustment gear 1 95 and adjustment gear 2 96 to rotate, and changes the capacitance of capacitor 92 connected to the circuit by changing the overlapping part in capacitor 92. The capacitor 92 is an adjustable capacitor, and multiple capacitors 92 are connected to power factor automatic compensation controller 91 at the same time. The use of adjustable capacitors can improve the precision of the capacitance of the connected circuit, and the simultaneous connection of multiple capacitors 92 to power factor automatic compensation controller 91 can ensure that when capacitor 92 performs reactive power compensation, multiple capacitors 92 generate heat evenly, and there will be no local over-temperature.

[0054] Cooling process: The water pump 72 introduces the coolant from the water tank 71 into the cooling hole 74, and a part of the coolant passes through the cooling groove 731 to cool the capacitor 92. After cooling, it returns to the cooling hole 74 on the other side. When the capacitance connected to the circuit increases, the adjusting gear 95 rotates to control the increase of the part of the capacitor 92 connected to the circuit. At the same time, the lower end rotates to drive the throttle valve 932 to rise. At this time, the overlapping part of the throttle hole 9322 at the lower end of the throttle valve 932 and the cooling groove 731 becomes larger. At this time, the water flow passing through the cooling groove 731 increases, thereby increasing the cooling amount.

[0055] Condensation process: the condensation hole 811 in the condensation plate 81 is connected to the cooling hole 74, and a part of the coolant passes through the condensation plate 81 from the cooling hole 74. Because the capacitor 92 heats up, the water vapor in the cabinet 1 rises. When the coolant passes through the condensation plate 81, the water vapor in the cabinet 1 condenses at the condensation plate 81, and the condensed water flows back to the water storage tank 71 through the reflux plate 82 and the reflux hole 83 along the guide groove 13. The lower end of the condensation plate 81 is curved, and the curvature is between 18 degrees and 45 degrees to prevent water vapor from dripping directly on the surface of the capacitor 92 after condensation. A condensation groove 812 is opened at the top. When the upper air encounters the condensation plate 81, it will also condense in the condensation groove 812, and at the same time, it will enter the reflux hole 83 along the guide groove 13.

[0056] Adjustment process: When the capacitor 92 needs to be connected to the circuit and the capacitance becomes larger, the capacitor 92 will generate more heat. The adjustment controller 94 rotates to drive the adjustment gear 1 95 and the adjustment gear 2 96 to rotate, thereby driving the capacitor 92 to connect to the circuit. When the capacitance increases, the lower end drives the throttle valve 932 to rise. At this time, the overlapping area of ​​the throttle hole 9322 and the cooling groove 731 increases, thereby increasing the circulation of cooling water and enhancing the heat dissipation capacity. At the same time, because the water output of the water pump 72 is fixed, the coolant entering the condensation plate 81 is reduced, reducing the condensed water on the condensation plate 81. Because the condensation of water vapor requires the release of heat, the formation of condensed water is reduced, thereby reducing the temperature inside the cabinet 1 from the side.

[0057] The foregoing is merely an excerpt from the disclosure that these modifications may be made to the invention in light of the above detailed description. The terms used in the appended claims should not be construed to limit the invention to the specific embodiments disclosed in the specification. Instead, the scope of the invention will be determined entirely by the appended claims, which will be interpreted in accordance with established principles of claim interpretation.

Claims

1. A reactive power compensation low-voltage safety distribution cabinet, comprising a cabinet body (1), an upper cabinet door (2), a lower cabinet door (3), a fuse (4), a main switch (5), and a terminal block (6), characterized in that: The cabinet (1) further comprises a cooling component (7), a condensing component (8), and a compensation component (9); the cabinet (1) is divided into an upper cabinet (11) and a lower cabinet (12); the upper cabinet door (2) and the lower cabinet door (3) are rotatably mounted on one side of the cabinet (1) and correspond to the upper cabinet (11) and the lower cabinet (12); the fuse (4) is fixedly mounted on the inner side of the upper cabinet (11); the terminal block (6) is fixedly connected to one side of the upper cabinet (11); the compensation component (9) is fixedly connected below the fuse (4); the cooling component (7) comprises a water storage tank (71), a water pump (72), a cooling plate (73), and a cooling hole (74); the water storage tank (71) is fixedly mounted on the inner side of the upper cabinet (11); At the lower end of the cabinet (1), the water pump (72) is fixedly mounted on one side of the water storage tank (71); the cooling plate (73) is fixedly connected below the compensation component (9); the main switch (5) is fixedly connected above the cooling plate (73) and electrically connected to the compensation component (9); the cooling holes (74) are provided inside both sides of the cabinet (1); the upper end is connected to the cooling plate (73) and the lower end is connected to the water pump (72); the water pump (72) drives the coolant to cool the compensation component (9) through the cooling plate (73); the condensation component (8) is connected to the cooling hole (74); the water vapor in the cabinet (1) encounters the condensation component (8) and condenses and flows back to the water storage tank (71).

2. A reactive power compensation low-voltage safety distribution cabinet according to claim 1, characterized in that: The condensation assembly (8) comprises a condensation plate (81), a return plate (82), and a return hole (83); the condensation plate (81) is fixedly installed inside the cabinet (1), and a condensation hole (811) is provided inside the condensation plate (81) and penetrates the condensation plate (81); both ends of the condensation hole (811) are connected to cooling holes (74) on both sides of the cabinet (1); the return plate (82) is fixedly connected to both sides of the inner wall of the cabinet (1); the return hole (83) is provided inside both sides of the cabinet (1), and the upper end is connected to the return plate (82) and the lower end is connected to the water storage tank (71).

3. A reactive power compensation low voltage safety distribution cabinet according to claim 1, characterized in that: The inner walls on both sides of the cabinet (1) are provided with flow guide grooves (13), the flow guide grooves (13) penetrate the upper cabinet (11) and the lower cabinet (12), and the lower ends of the flow guide grooves (13) are connected to the return plate (82).

4. A reactive power compensation low voltage safety distribution cabinet according to claim 2, characterized in that: The compensation component (9) comprises an automatic power factor compensation controller (91), a capacitor (92), an adjustment frame (93), an adjustment controller (94), an adjustment gear 1 (95), and an adjustment gear 2 (96). The automatic power factor compensation controller (91) is fixedly mounted on the upper end of the condensing plate (81), the adjustment frame (93) is fixedly mounted on the upper end of the cooling plate (73), the adjustment controller (94) is fixedly mounted on the upper end of the adjustment frame (93) and is electrically connected to the automatic power factor compensation controller (91), the adjustment gear 1 (95) is rotatably connected to the upper end of the adjustment frame (93), a plurality of capacitors (92) are fixedly mounted on the upper end of the cooling plate (73), and the adjustment gear 2 (96) is fixedly connected to the upper end of the capacitor (92) and meshes with the adjustment gear 1 (95).

5. A reactive power compensation low voltage safety distribution cabinet according to claim 2, characterized in that: The cooling holes (74) and the return holes (83) are both opened inside the cabinet (1) on both sides and are arranged linearly, and the cooling holes (74) and the return holes (83) are arranged in a staggered manner.

6. A reactive power compensation low voltage safety distribution cabinet according to claim 4, characterized in that: The capacitor (92) is an adjustable capacitor, and a plurality of capacitors (92) are simultaneously connected to the power factor automatic compensation controller (91).

7. A reactive power compensation low voltage safety distribution cabinet according to claim 4, characterized in that: The adjusting frame (93) has a mounting hole (931) therein, the upper end of the mounting hole (931) is connected to the adjusting controller (94), and the lower end is connected to the cooling plate (73), a throttle valve (932) is installed in the mounting hole (931), the upper end of the throttle valve (932) is provided with a threaded groove (9321) to cooperate with the adjusting controller (94), and the lower end is provided with a throttle hole (9322) corresponding to the cooling groove (731) in the cooling plate (73).

8. A reactive power compensation low voltage safety distribution cabinet according to claim 2, characterized in that: A one-way valve (831) is installed in the reflux hole (83).

9. A reactive power compensation low voltage safety distribution cabinet according to claim 1, characterized in that: The lower end of the condensation plate (81) is in an arc shape with an arc angle between 18 degrees and 45 degrees, and a condensation groove (812) is provided at the top.

10. A reactive power compensation low voltage safety distribution cabinet according to claim 1, characterized in that: A water outlet hole (711) is provided at the upper end of the water storage tank (71).

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