AC excitation power cabinet

Abstract

The invention relates to the technical field of power generation equipment, in particular to an alternating current excitation power cabinet which comprises a cabinet body, a plurality of installation layers are divided in the cabinet body, modules and water cooling assemblies used for cooling the modules are arranged in the installation layers, and each water cooling assembly comprises a water inlet pipeline and a water outlet pipeline. The water inlet pipeline comprises a branch water inlet pipe and a main water inlet pipe hoisted at the top of the mounting layer, the water outlet pipeline comprises a branch water outlet pipe and a main water outlet pipe hoisted at the top of the mounting layer, and the branch water inlet pipe and the branch water outlet pipe are connected with the module respectively; the branch water inlet pipe and the branch water outlet pipe are detachably connected with the main water inlet pipe and the main water outlet pipe through joint parts, and drainage assemblies are arranged at the bottoms of the branch water inlet pipe and the branch water outlet pipe. The alternating-current excitation power cabinet is large in space utilization rate, convenient to transport, disassemble and assemble, capable of reducing the workload during disassembly, assembly and overhaul, convenient to maintain in the later period, good in heat dissipation effect and capable of avoiding liquid leakage when the water cooling assembly is disassembled along with the module, and safe operation of the alternating-current excitation power cabinet is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of power generation equipment, in particular to an AC excitation power cabinet. Background Art

[0002] The frequency converter is the core equipment of AC excitation. The current mainstream structure is AC-DC-AC voltage source type. Its output voltage level ranges from 3-6.6kV and the current level is above 3000A. It can adjust the mechanical speed of the rotor without affecting the fixed voltage frequency. In the power generation state, by changing the size and phase of the AC excitation current, the reactive and active output of the unit can be quickly changed; in the water pump working condition, the AC excitation output variable frequency excitation current can be used to adjust the mechanical speed of the unit, so as to achieve the purpose of quickly and widely adjusting the active power absorbed by the unit.

[0003] The AC excitation power cabinet is the most important part of the entire inverter. The heat dissipation of the modules in the AC excitation power cabinet is directly related to whether the system can operate stably. Compared with the traditional air cooling method, water cooling has the advantages of low noise, high heat dissipation efficiency, and high protection level. The current water cooling has a large workload in the transportation, installation and maintenance process, and the module heat dissipation problem is prominent, there is a risk of leakage, which affects the safe operation of the AC excitation power cabinet. Summary of the invention

[0004] The purpose of the present invention is to provide an AC excitation power cabinet with large space utilization, convenient transportation and disassembly, capable of reducing the workload during disassembly and maintenance, convenient for later maintenance, good heat dissipation effect, avoiding leakage of water cooling components when following module disassembly, and ensuring safe operation of the AC excitation power cabinet.

[0005] To achieve the above object, the present invention provides the following technical solutions: In a first aspect, the present invention provides an AC excitation power cabinet, comprising: a cabinet body, wherein the cabinet body is divided into several installation layers, wherein the installation layers are provided with modules and water cooling components for dissipating heat for the modules, wherein the modules are detachably connected to the installation layers, wherein the water cooling components include a water inlet pipe and a water outlet pipe, wherein the water inlet pipe includes a branch water inlet pipe and a main water inlet pipe hoisted at the top of the installation layer, wherein the water outlet pipe includes a branch water outlet pipe and a main water outlet pipe hoisted at the top of the installation layer, wherein both ends of the main water inlet pipe and the main water outlet pipe are connected to the outside of the cabinet body, wherein the branch water inlet pipe and the branch water outlet pipe are respectively connected to the modules, wherein the top ends of the branch water inlet pipe and the branch water outlet pipe are respectively detachably connected to the main water inlet pipe and the main water outlet pipe through joints, wherein a drainage component is provided at the bottom of the branch water inlet pipe and the branch water outlet pipe, wherein the drainage component is used to work when the module is disassembled to discharge the liquid in the branch water inlet pipe and the branch water outlet pipe, and wherein the liquid in the joint can be drained when the drainage component is working.

[0006] In combination with the first aspect, further, the joint part includes a first pipe, a second pipe and a connecting piece which are interconnected, the first pipe is arranged on the main water inlet pipe or the main water outlet pipe and is connected to the main water inlet pipe or the main water outlet pipe, the second pipe is arranged on the branch water inlet pipe or the branch water outlet pipe and is connected to the branch water inlet pipe or the branch water outlet pipe, the first pipe and the second pipe in the same joint part are detachably connected by the connecting piece, and the first pipe and the second pipe are connected by the connecting piece to obtain an inverted U-shaped joint part.

[0007] In combination with the first aspect, further, the drainage component includes a drainage valve and a drainage pipe, and the drainage valve is arranged between the drainage pipe and the branch water inlet pipe or the branch water outlet pipe, and is used to control the connection and disconnection of the drainage pipe and the branch water inlet pipe or the branch water outlet pipe.

[0008] In combination with the first aspect, further, a water receiving trough is provided below the connection between the first pipe and the second pipe of the same joint part.

[0009] In combination with the first aspect, further, a slope is provided in the joint part, and the first pipe in the same joint part is higher than the second pipe.

[0010] In combination with the first aspect, further, a slide rail is provided at the bottom of the installation layer, and a mounting frame is provided at the bottom of the module in the installation layer, and the mounting frame is slidably connected to the slide rail.

[0011] In combination with the first aspect, further, a first limiting hole is provided on the mounting frame, and a second limiting hole adapted to the first limiting hole is provided at the bottom of the mounting layer, and limiting bolts are detachably connected in the first limiting hole and the second limiting hole, and the bottom of the mounting layer is fixedly connected to the mounting frame through the first limiting hole, the second limiting hole and the limiting bolts.

[0012] In combination with the first aspect, further, a plurality of fans are arranged on the top of the cabinet, and corresponding ventilation holes are arranged on the cabinet.

[0013] In combination with the first aspect, further, a plurality of capacitors are arranged in the installation layer, and the capacitors are electrically connected to the module through the laminated busbars.

[0014] In a second aspect, the present invention provides an AC excitation power cabinet group, comprising a plurality of AC excitation power cabinets, characterized in that the cabinet bodies of the plurality of AC excitation power cabinets are arranged in series, and the main water inlet pipes and the main water outlet pipes in each installation layer of adjacent cabinet bodies are respectively connected to each other.

[0015] Compared with the prior art, the invention has the following beneficial effects: large space utilization, convenient transportation and disassembly, can reduce the workload during disassembly and maintenance, is convenient for later maintenance, has good heat dissipation effect, avoids leakage of water cooling components when disassembling the module, and ensures safe operation of the AC excitation power cabinet; The AC excitation power cabinet provided by the present invention divides the cabinet into several installation layers, and respectively arranges modules and water-cooling components in each installation layer, thereby improving the space utilization rate in the cabinet and the heat dissipation effect, having a higher degree of integration and being convenient for batch transportation; by detachably connecting the module with the installation layer, and detachably connecting the main water inlet pipe and the branch water inlet pipe through the joint part, and detachably connecting the main water outlet pipe and the branch water outlet pipe, it is convenient to realize the disassembly and assembly of the water-cooling component while disassembling and assembling the module with the installation layer, which can reduce the workload and facilitate the maintenance of the module; by arranging the joint part and the drainage component, the liquid in the branch water inlet pipe, the branch water outlet pipe and the joint part can be discharged, and the module and the water-cooling component thereon can be moved and disassembled, without the need to empty the liquid in the main water outlet pipe and the main water inlet pipe, so as to avoid leakage of the water-cooling component when the module is disassembled, thereby ensuring the safe operation of the AC excitation power cabinet and improving the efficiency of disassembly and assembly and reducing the workload; The first pipe and the second pipe are connected by a connecting piece to obtain an inverted U-shaped joint part, so that when the drainage component is working, the liquid in the joint part flows out by itself under the action of gravity, and the liquid in the joint part is emptied. By setting the first pipe on the main water inlet pipe or the main water outlet pipe, and setting the second pipe on the branch water inlet pipe or the branch water outlet pipe, the first pipe and the second pipe are separated by the connecting piece, and the second pipe set on the branch water outlet pipe and the branch water inlet pipe moves with the module, and the first pipe set on the main water inlet pipe and the main water outlet pipe stays in the installation layer, so that the module and the water cooling component thereon are separated from the installation layer and the water cooling component thereon, and the operation is simple and efficient; By setting a drain valve to control the on-off of the drain pipe and the branch water inlet pipe or the branch water outlet pipe, the operation is simple and convenient for controlling the drainage operation of the branch water inlet pipe and the branch water outlet pipe; By arranging a water receiving tank below the connection between the first pipe and the second pipe of the same joint part, the liquid leaked from the joint part when the water cooling component is running or the module is disassembled is collected, thereby reducing resource waste and preventing leakage from affecting the safe operation of the AC excitation power cabinet; By making the first pipe higher than the second pipe in the same joint part, a slope is formed in the joint part, so that the liquid in the joint part tends to flow toward the second pipe. When the drainage component is working, the liquid in the joint part is further emptied to reduce the residue. The sliding connection between the module and the mounting layer is achieved through the slide rail and the mounting frame, which saves effort and time when moving the module; The mounting frame is limited in position within the mounting layer by means of the first limiting hole on the mounting frame, the second limiting hole at the bottom of the mounting layer, and the limiting bolts, so as to realize a detachable connection between the module and the mounting layer; By installing several fans on the top of the cabinet and providing corresponding ventilation holes on the cabinet, the heat dissipation effect of the modules inside the cabinet can be further improved; The AC excitation power cabinet group provided by the present invention connects a number of AC excitation power cabinets in series so that the main water inlet pipes and the main water outlet pipes of each installation layer in adjacent cabinets can be connected to each other accordingly, thereby reducing the number of pumping devices connected to the main water inlet pipe and the main water outlet pipe, thereby improving resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the internal three-dimensional structure of an AC excitation power cabinet provided in an embodiment of the present invention; Figure 2 A schematic diagram of the three-dimensional structure of a module in one installation layer of an AC excitation power cabinet provided in an embodiment of the present invention; Figure 3 A schematic side view of the structure of modules and capacitors in one installation layer of an AC excitation power cabinet provided in an embodiment of the present invention; Figure 4 A schematic diagram of the front view structure of a module in an installation layer of an AC excitation power cabinet provided in an embodiment of the present invention; Figure 5 for Figure 4 An enlarged structural diagram of the slide rail in FIG.

[0017] The markings in the attached drawings are: 1. cabinet; 2. installation layer; 3. module; 4. branch water inlet pipe; 5. main water inlet pipe; 6. branch water outlet pipe; 7. main water outlet pipe; 8. joint; 801. first pipeline; 802. second pipeline; 803. connector; 9. drainage assembly; 901. drainage valve; 902. drainage pipeline; 10. water trough; 11. slide rail; 12. mounting frame; 13. limit bolt; 14. fan; 15. capacitor; 16. laminated busbar; 17. water pipe clamp; 18. module water pipe; 19. insulator; 20. insulating beam. DETAILED DESCRIPTION

[0018] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0019] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.

[0020] Embodiment 1: This embodiment provides an AC excitation power cabinet, which has a large space utilization rate, is easy to transport and disassemble, can reduce the workload during disassembly and maintenance, is convenient for later maintenance, has a good heat dissipation effect, avoids leakage of the water cooling component when the module 3 is disassembled, and ensures the safe operation of the AC excitation power cabinet. Please refer to Figure 1-Figure 2An AC excitation power cabinet comprises: a cabinet 1, a lifting lug can be arranged on the top of the cabinet 1, in this embodiment, the cabinet 1 is divided into two upper and lower installation layers 2, each installation layer 2 is provided with a module 3 and a water cooling component for cooling the module 3, the module 3 is detachably connected to the installation layer 2, the water cooling component comprises a water inlet pipe and a water outlet pipe, in this embodiment, the water inlet pipe is provided with one, and a water outlet pipe is arranged on each side of the water inlet pipe, the water inlet pipe comprises a branch water inlet pipe 4 and a main water inlet pipe 5 hoisted on the top of the installation layer 2, the water outlet pipe comprises a branch water outlet pipe 6 and a main water outlet pipe 7 hoisted on the top of the installation layer 2, the main water outlet pipe 7 and the main water inlet pipe 5 pass through a water pipe clamp 17 fixedly connected to the top of the installation layer 2, and are hoisted on the installation layer 2. At the top, both ends of the main water inlet pipe 5 and the main water outlet pipe 7 are connected to the outside of the cabinet 1, and one end of the main water inlet pipe 5 and the main water outlet pipe 7 are connected to a pumping device. A plurality of module water pipes 18 and a heat sink are arranged on the module 3. The branch water inlet pipe 4 and the branch water outlet pipe 6 are respectively connected to the module 3 through a plurality of module water pipes 18. The plurality of module water pipes 18 connected to the branch water inlet pipe 4 and the plurality of module water pipes 18 connected to the branch water outlet pipe 6 are connected to each other. The top end of the branch water inlet pipe 4 is detachably connected to the main water inlet pipe 5 through a joint portion 8, and the top end of the branch water outlet pipe 6 is also detachably connected to the main water outlet pipe 7 through a joint portion 8. A drainage assembly 9 is arranged at the bottom of the branch water inlet pipe 4 and the branch water outlet pipe 6. The drainage assembly 9 is used When the module 3 is disassembled, it works to discharge the liquid in the branch water inlet pipe 4 and the branch water outlet pipe 6. When the drainage component 9 is working, the liquid in the joint part 8 can flow into the branch water inlet pipe 4 or the branch water outlet pipe 6, and then the liquid in the joint part 8 is emptied; in this embodiment, two fans 14 are arranged on the top of the cabinet 1, and corresponding ventilation holes are arranged on the cabinet 1. The turbulence of the fans 14 optimizes the temperature field in the cabinet 1, and further improves the heat dissipation effect of the module 3 inside the cabinet 1; by dividing the cabinet 1 into a plurality of installation layers 2, and respectively arranging the modules 3 and the water cooling components in each installation layer 2, the space utilization rate in the cabinet 1 is improved, and the heat dissipation effect is improved, the degree of integration is higher, and it is convenient for batch transportation; by 3 is detachably connected to the mounting layer 2, and the main water inlet pipe 5 and the branch water inlet pipe 4 are detachably connected through the joint part 8, and the main water outlet pipe 7 and the branch water outlet pipe 6 are detachably connected, so that the module 3 and the mounting layer 2 can be disassembled and assembled at the same time to carry out the disassembly and assembly of the water cooling component, which can reduce the workload and facilitate the maintenance of the module 3; by setting the joint part 8 and the drainage component 9, the liquid in the branch water inlet pipe 4, the branch water outlet pipe 6 and the joint part 8 is discharged, and the module 3 and the water cooling component thereon can be moved and disassembled, and there is no need to empty the liquid in the main water outlet pipe 7 and the main water inlet pipe 5, so as to avoid leakage of the water cooling component when the module 3 is disassembled, thereby ensuring the safe operation of the AC excitation power cabinet and improving the efficiency of disassembly and assembly and reducing the workload.

[0021] like Figure 1-Figure 3As shown, in this embodiment, the joint part 8 includes a first pipe 801, a second pipe 802 and a connecting piece 803 that are interconnected. One end of the first pipe 801 is fixedly connected to the main water inlet pipe 5 or the main water outlet pipe 7 and is communicated with the main water inlet pipe 5 or the main water outlet pipe 7. One end of the second pipe 802 is fixedly connected to the top of the branch water inlet pipe 4 or the branch water outlet pipe 6 and is communicated with the branch water inlet pipe 4 or the branch water outlet pipe 6. The first pipe 801 and the second pipe 802 in the same joint part 8 are detachably connected at one end through the connecting piece 803, and the detachable connection can be achieved by threaded connection. The connecting piece 803 can be a connecting piece sleeved at the end of the first pipe 801. The connecting sleeve is movably connected to the first pipe 801, the connecting sleeve is provided with a first thread, and a second thread matching the internal thread is provided at the end of the second pipe 802. The first thread on the connecting sleeve and the second thread at the end of the second pipe 802 are connected to realize the detachable connection of the first pipe 801 and the second pipe 802 through the connecting piece 803. In this embodiment, the detachable connection can also be realized by a snap-on method. The connecting piece 803 can be set as a plug fixedly connected to the end of the first pipe 801. The plug is tubular and snap-on with the second pipe 802. The first pipe 801 and the second pipe 802 are connected through the connecting piece 803 to form an inverted U In this embodiment, the joint part 8 is provided with an inclination, and the first pipe 801 in the same joint part 8 is higher than the second pipe 802. The liquid in the first pipe 801 tends to flow into the second pipe 802 under the action of gravity; the first pipe 801 and the second pipe 802 are connected by the connecting piece 803 to obtain an inverted U-shaped joint part 8, which is convenient for the liquid in the joint part 8 to flow out by itself under the action of gravity when the drainage component 9 is working, and the liquid in the joint part 8 is emptied. By setting the first pipe 801 on the main water inlet pipe 5 or the main water outlet pipe 7, and setting the second pipe 802 on the branch water inlet pipe 4 or the branch water outlet pipe 6, the first pipe 801 is connected to the second pipe 802 through the connecting piece 803. 803 separates the first pipe 801 and the second pipe 802, and the second pipe 802 arranged on the branch water outlet pipe 6 and the branch water inlet pipe 4 moves with the module 3, and the first pipe 801 arranged on the main water inlet pipe 5 and the main water outlet pipe 7 stays in the installation layer 2, which is convenient for separating the module 3 and the water-cooling components thereon from the installation layer 2 and the water-cooling components thereon, and the operation is simple and efficient; by making the first pipe 801 in the same joint part 8 higher than the second pipe 802, a slope is formed in the joint part 8, so that the liquid in the joint part 8 tends to flow to the second pipe 802, and when the drainage component 9 is working, the liquid in the joint part 8 is further emptied to reduce residue.

[0022] like Figure 2As shown, in this embodiment, the drainage component 9 includes a drainage valve 901 and a drainage pipe 902. The drainage pipe 902 is arranged at the bottom of the branch water inlet pipe 4 and the branch water outlet pipe 6. The drainage valve 901 is arranged between the branch water inlet pipe 4 and the drainage pipe 902 thereon and between the branch water outlet pipe 6 and the drainage pipe 902 thereon. The branch water inlet pipe 4 and the branch water outlet pipe 6 are respectively connected to the drainage pipe 902 arranged thereon. The connection and disconnection of the drainage pipe 902 and the branch water inlet pipe 4 or the drainage pipe 902 and the branch water outlet pipe 6 is controlled by switching the drainage valve 901; the connection and disconnection of the drainage pipe 902 and the branch water inlet pipe 4 or the branch water outlet pipe 6 is controlled by setting the drainage valve 901. The operation is simple and it is convenient to control the drainage operation of the branch water inlet pipe 4 and the branch water outlet pipe 6.

[0023] like Figure 1-Figure 2 As shown, in this embodiment, a water receiving trough 10 is arranged below the connection between the first pipe 801 and the second pipe 802 of the same joint part 8. The water receiving trough 10 is in the shape of a long strip. The water receiving trough 10 is arranged below the joint part 8 of two water outlet pipes and one water inlet pipe arranged in parallel. A supporting frame for overlapping the water receiving trough 10 can be arranged in the installation layer 2, and a sensor can be arranged in the water receiving trough 10 to monitor the leaked liquid; by arranging the water receiving trough 10 below the connection between the first pipe 801 and the second pipe 802 of the same joint part 8, the liquid leaked in the joint part 8 when the water cooling component is in operation or when the module 3 is disassembled is collected, thereby reducing resource waste and avoiding leakage from affecting the safe operation of the AC excitation power cabinet.

[0024] like Figure 1-Figure 5 As shown, in this embodiment, a slide rail 11 is fixed to the bottom of the mounting layer 2, and two slide rails 11 are arranged in parallel along the depth direction of the cabinet 1. A mounting frame 12 is arranged at the bottom of the module 3 in the mounting layer 2. Insulators 19 can be arranged at the four corners of the module 3 as a support connection between the mounting frame 12 to prevent the mounting frame 12 from being electrified. The mounting frame 12 is slidably connected to the two slide rails 11, and a first limiting hole is also arranged on the mounting frame 12. A second limiting hole adapted to the first limiting hole is arranged at the bottom of the mounting layer 2, and a limiting bolt 1 can be detachably connected in the first limiting hole and the second limiting hole. 3. When the module 3 follows the mounting frame 12 to slide to the target position on the slide rail 11, the first limiting hole and the second limiting hole are aligned, and the bottom of the mounting layer 2 is fixedly connected to the mounting frame 12 through the first limiting hole, the second limiting hole and the limiting bolt 13; the sliding connection between the module 3 and the mounting layer 2 is realized through the slide rail 11 and the mounting frame 12, which saves effort and time when moving the module 3; the mounting frame 12 is limited in the mounting layer 2 through the first limiting hole on the mounting frame 12, the second limiting hole at the bottom of the mounting layer 2 and the limiting bolt 13, so as to realize the detachable connection between the module 3 and the mounting layer 2.

[0025] like Figure 1-Figure 3As shown, in this embodiment, four capacitors 15 are further arranged on the rear side of the module 3 in each mounting layer 2, and a plurality of laminated busbars 16 are arranged between the module 3 and the capacitor 15. The four capacitors 15 are electrically connected to the module 3 through the laminated busbars 16. Specifically, the capacitor 15 is fixed to the insulating beam 20 by bolts, and the insulating beam 20 is fixedly connected to the bottom of the mounting layer 2. The laminated busbars 16 are provided with rivet nuts. The screws on the capacitors 15 are installed in coordination with the rivet nuts to realize the connection between the capacitors 15 and the laminated busbars 16. The laminated busbars 16 are also connected to the heat sink on the module 3 to facilitate heat dissipation. The laminated busbars 16 in the upper and lower mounting layers 2 are connected through the copper busbars between the modules 3 in the upper and lower mounting layers 2.

[0026] When the water cooling assembly is working, under the action of the pumping device, the liquid in the main water inlet pipe 5 flows downward into the branch water inlet pipe 4 through the joint part 8, and the liquid in the branch water inlet pipe 4 flows into a plurality of module water pipes 18, and the liquid in a plurality of module water pipes 18 directly connected to the branch water inlet pipe 4 flows to a plurality of module water pipes 18 directly connected to the branch water outlet pipe 6. In this process, the liquid takes away the heat generated by the module 3 and transfers the heat to the air through the heat sink. At this time, the fan 14 on the top of the cabinet 1 can be used to turbulently optimize the temperature field in the cabinet 1. To further improve the heat dissipation effect of the module 3 inside the cabinet 1, the liquid in the module water pipe 18 then flows to the branch water outlet pipes 6 on both sides, and the liquid in the branch water outlet pipes 6 on both sides merges into the main water outlet pipe 7 and flows to the outside of the cabinet 1; when it is necessary to disassemble the module 3 and inspect the module 3, first control the pumping device to stop working, open the drain valve 901 at the bottom of the branch water outlet pipe 6 and the branch water inlet pipe 4, so that the liquid in the branch water outlet pipe 6 and the branch water inlet pipe 4 flows out from the drain pipe 902. At this time, since the joint part 8 is an inverted U shape, the joint part 8 The liquid in the joint part 8 flows to the branch water inlet pipe 4 or the branch water outlet pipe 6 under the action of gravity, and the liquid in the joint part 8 is emptied. The joint part 8 is provided with a slope so that the first pipe 801 is higher than the second pipe 802, which further improves the effect of emptying the liquid in the joint part 8. After the water in the joint part 8 is emptied, the connection between the first pipe 801 and the second pipe 802 is released through the connecting piece 803. At this time, the limiting bolts 13 on both sides of the mounting frame 12 are screwed so that the limiting bolts 13 are separated from the first limiting hole and the second limiting hole. At this time, the mounting frame 1 2 can slide on the slide rail 11, pull the mounting frame 12 to drive the module 3 to move outside the cabinet 1. During the movement of the module 3, the branch water inlet pipe 4 and the branch water outlet pipe 6 also move with the module 3, and the second pipe 802 gradually moves away from the first pipe 801. When the second pipe 802 and the first pipe 801 are initially separated, the water remaining on the first pipe 801 and the second pipe 802 will be caught and collected by the water receiving tank 10 when the water drops down, until the module 3 is completely taken out from the mounting layer 2 of the cabinet 1 for inspection or replacement, and the operation is simple and efficient.

[0027] Embodiment 2: The embodiment of the present invention provides an AC excitation power cabinet group, including several AC excitation power cabinets described in the first embodiment, such as Figure 1-Figure 5 As shown, in this embodiment, the cabinets 1 of several AC excitation power cabinets are arranged in series, the main water inlet pipes 5 in each installation layer 2 of adjacent cabinets 1 are connected to each other, and the main water outlet pipes 7 in each installation layer 2 of adjacent cabinets 1 are connected to each other. It is only necessary to set a pumping device at the main water inlet pipe 5 of the cabinet 1 at the head end and set another pumping device at the main water outlet pipe 7 of the cabinet 1 at the end to ensure the operation of the AC excitation power cabinet group; by setting several AC excitation power cabinets in series, the main water inlet pipes 5 and the main water outlet pipes 7 of each installation layer 2 in adjacent cabinets 1 can be connected to each other, which can reduce the number of pumping devices connected to the main water inlet pipe 5 and the main water outlet pipe 7, save space for installing the pumping device, and improve resource utilization.

[0028] The above are only preferred embodiments of the present invention. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. An AC excitation power cabinet, characterized in that: include: A cabinet (1), wherein the cabinet (1) is divided into a plurality of installation layers (2), wherein the installation layer (2) is provided with a module (3) and a water cooling assembly for dissipating heat from the module (3), wherein the module (3) is detachably connected to the installation layer (2), wherein the water cooling assembly comprises a water inlet pipeline and a water outlet pipeline, wherein the water inlet pipeline comprises a branch water inlet pipe (4) and a main water inlet pipe (5) suspended on the top of the installation layer (2), wherein the water outlet pipe comprises a branch water outlet pipe (6) and a main water outlet pipe (7) suspended on the top of the installation layer (2), wherein both ends of the main water inlet pipe (5) and the main water outlet pipe (7) are connected to the outside of the cabinet (1). The branch water inlet pipe (4) and the branch water outlet pipe (6) are respectively connected to the module (3); the top ends of the branch water inlet pipe (4) and the branch water outlet pipe (6) are respectively detachably connected to the main water inlet pipe (5) and the main water outlet pipe (7) via a joint portion (8); a drainage assembly (9) is provided at the bottom of the branch water inlet pipe (4) and the branch water outlet pipe (6); the drainage assembly (9) is used to operate when the module (3) is disassembled to discharge the liquid in the branch water inlet pipe (4) and the branch water outlet pipe (6); the liquid in the joint portion (8) can be emptied when the drainage assembly (9) is in operation.

2. The AC excitation power cabinet according to claim 1, characterized in that: The joint portion (8) comprises a first pipe (801), a second pipe (802) and a connecting piece (803) which are interconnected. The first pipe (801) is arranged on the main water inlet pipe (5) or the main water outlet pipe (7) and is in communication with the main water inlet pipe (5) or the main water outlet pipe (7). The second pipe (802) is arranged on the branch water inlet pipe (4) or the branch water outlet pipe (6) and is in communication with the branch water inlet pipe (4) or the branch water outlet pipe (6). The first pipe (801) and the second pipe (802) in the same joint portion (8) are detachably connected via the connecting piece (803). The first pipe (801) and the second pipe (802) are connected via the connecting piece (803) to obtain the joint portion (8) in an inverted U shape.

3. The AC excitation power cabinet according to claim 1, characterized in that: The drainage component (9) comprises a drainage valve (901) and a drainage pipe (902); the drainage valve (901) is arranged between the drainage pipe (902) and the branch water inlet pipe (4) or the branch water outlet pipe (6) and is used to control the connection and disconnection between the drainage pipe (902) and the branch water inlet pipe (4) or the branch water outlet pipe (6).

4. The AC excitation power cabinet according to claim 2, characterized in that: A water receiving trough (10) is provided below the connection point between the first pipe (801) and the second pipe (802) of the same joint part (8).

5. The AC excitation power cabinet according to claim 2, characterized in that: The joint portion (8) is provided with an inclination, and the first pipe (801) in the same joint portion (8) is higher than the second pipe (802).

6. The AC excitation power cabinet according to claim 1, characterized in that: A slide rail (11) is provided at the bottom of the installation layer (2), and a mounting frame (12) is provided at the bottom of the module (3) in the installation layer (2), wherein the mounting frame (12) is slidably connected to the slide rail (11).

7. The AC excitation power cabinet according to claim 6, characterized in that: The mounting frame (12) is also provided with a first limiting hole, the bottom of the mounting layer (2) is provided with a second limiting hole adapted to the first limiting hole, limiting bolts (13) are detachably connected in the first limiting hole and the second limiting hole, and the bottom of the mounting layer (2) is fixedly connected to the mounting frame (12) via the first limiting hole, the second limiting hole and the limiting bolts (13).

8. The AC excitation power cabinet according to claim 1, characterized in that: A plurality of fans (14) are arranged on the top of the cabinet (1), and corresponding ventilation holes are arranged on the cabinet (1).

9. The AC excitation power cabinet according to claim 1, characterized in that: A plurality of capacitors (15) are also provided in the installation layer (2), and the capacitors (15) are electrically connected to the module (3) via a laminated busbar (16).

10. An AC excitation power cabinet group, comprising a plurality of AC excitation power cabinets according to any one of claims 1 to 9, characterized in that: The cabinet bodies (1) of the AC excitation power cabinets are arranged in series, and the main water inlet pipes (5) and the main water outlet pipes (7) in each installation layer (2) of the adjacent cabinet bodies (1) are connected to each other respectively.

Images