Special closed transformer water-cooling shell structure for integrated equipment

Abstract

The invention relates to a closed transformer water-cooling shell structure special for integrated equipment, which comprises a first shell, a second shell, a frequency converter, a motor, an air cooling mechanism and a transformer, and is characterized in that the first shell is provided with a first mounting cavity, the second shell is provided with a second mounting cavity, and the air cooling mechanism is arranged in the second mounting cavity; the frequency converter is arranged at the upper part of the first mounting cavity; the motor is arranged at the lower part of the first mounting cavity; and the transformer is arranged in the second mounting cavity, and the transformer is located above the air cooling mechanism. The transformer has the advantages that air circulation in the closed shell is achieved through the fan at the bottom of the transformer. The fan blows air upwards, and the air is guided by the insulating cylinder and the wind resistance plate, flows along the surface of the winding and is discharged from the upper part of the insulating cylinder. Hot air flow is primarily cooled by the cooling water plate, is blocked by the cooling water plate to flow towards two sides, is guided by the air flow guide plate and is secondarily cooled along the inner wall of the water-cooling shell, and finally cooling air returns to the bottom of the transformer.

Description

Technical Field

[0001] The present invention relates to electrical equipment and its cooling technology, and specifically to a water-cooled outer shell structure for a dedicated closed transformer of an integrated device. Background Art

[0002] In the field of modern industrial equipment, the integrated design of transformers, frequency converters, and motors has become increasingly common, aiming to achieve a more compact structure and higher operating efficiency. However, this integrated design poses higher requirements for the compact layout of components and collaborative heat dissipation. On the one hand, the internal space of the equipment is increasingly limited, requiring electrical components to adopt a more reasonable and compact placement method; on the other hand, traditional single air-cooling or water-cooling heat dissipation methods can no longer meet the large amount of heat generated by heat-intensive components such as transformers. Therefore, more efficient and innovative heat dissipation solutions are needed. The hybrid heat dissipation technology of water-cooling and air-cooling, with its excellent heat conduction performance, stands out in the heat dissipation fields of many high-power electrical equipment. Combining the water-cooling technology with the transformer outer shell structure and working in coordination with the existing air-cooling mechanism is expected to build a three-dimensional and efficient heat dissipation system. In summary, under such a development trend, it is urgent to develop a water-cooled outer shell structure for a dedicated closed transformer of an integrated device that can not only provide closed protection for the transformer, isolate external adverse factors, but also combine efficient heat dissipation means. Summary of the Invention

[0003] Object of the Invention

[0004] The object of the present invention is to provide a water-cooled outer shell structure for a dedicated closed transformer of an integrated device to solve the problems of insufficient transformer cooling effect and inconvenient maintenance under high-load conditions of existing integrated devices.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A water-cooled outer shell structure for a dedicated closed transformer of an integrated device, including a first housing, a second housing, a frequency converter, a motor, an air-cooling mechanism, and a transformer. The first housing has a first installation cavity, and the first housing is fixedly arranged on the side wall of the second housing; the second housing has a second installation cavity, and the air-cooling mechanism is arranged in the second installation cavity; the frequency converter is arranged on the upper part of the first installation cavity through a frequency converter working platform, and the motor is arranged on the lower part of the first installation cavity through a motor platform;

[0007] The transformer is arranged in the second installation cavity through a transformer working platform, and the transformer is located above the air-cooling mechanism.

[0008] As a further description of the above solution, the second housing includes a top wall, a side wall, and a bottom wall, and the top wall, the side wall, and the bottom wall are hermetically connected. A circulating water cooling pipeline is arranged inside the side wall, and the circulating water cooling pipeline is S-shaped.

[0009] As a further description of the above solution, the air cooling mechanism includes a wind resistance plate, a fan, and an air flow guiding plate. The fan is arranged at the lower part of the second installation cavity through a transformer installation platform. A gap is left between the transformer installation platform and the bottom wall, and a plurality of ventilation openings are formed in the transformer installation platform. Each ventilation opening is communicated with the inside of the insulating cylinder;

[0010] There are two air flow guiding plates. Both air flow guiding plates are arranged on the transformer installation platform. The two air flow guiding plates are respectively arranged on both sides of the transformer. A predetermined space is left between the two air flow guiding plates and the side wall of the second housing, and a predetermined distance is left between the tops of the two air flow guiding plates and the top wall of the second housing; The wind resistance plate is provided with installation holes corresponding to the insulating cylinder, and the periphery of the wind resistance plate is hermetically connected to the air flow guiding plate and the side wall of the second housing respectively.

[0011] As a further description of the above solution, when the transformer is cooled, the path of the cooling air is as follows: the air flows upward from the fan outlet through the gap between the high-voltage winding, the low-voltage winding, and the iron core inside the transformer insulating cylinder, then flows through the channel between the air flow guiding plate and the circulating water cooling plate at the top to the space between the two air flow guiding plates and the side wall of the second housing, and then flows downward through the cavity between the transformer installation platform and the bottom wall of the second housing, and returns to the air inlet of the fan from the cavity between the transformer installation platform and the bottom wall of the second housing to complete the cycle.

[0012] As a further description of the above solution, it further includes a top water cooling plate assembly. The top water cooling plate assembly includes a water cooling plate height adjuster and a circulating water cooling plate. There are two circulating water cooling plates. Each circulating water cooling plate has an S-shaped water cooling flow cavity, and the S-shaped water cooling flow cavity has a liquid inlet and a liquid outlet. The adjacent sides of the two circulating water cooling plates are both connected to the water cooling plate height adjuster. The mutually remote sides of the two circulating water cooling plates are fixedly connected to the top of the air flow guiding plate through hinges, and the two circulating water cooling plates are arranged at a predetermined angle.

[0013] As a further description of the above solution, the water cooling plate height adjuster includes a height adjustment frame and a connecting rod assembly. There are two height adjustment frames, and each height adjustment frame is arranged on the outer wall of the top of the housing. The height adjustment frame has a plurality of height adjustment slots along the height;

[0014] There are two connecting rod assemblies provided. Each connecting rod assembly includes a connecting rod and a connecting frame. The connecting rod is adapted to the size of the height adjustment groove, and the connecting rod is placed in the height adjustment groove. One end of the connecting frame is fixedly connected to the upper connecting rod, and the other end of the connecting frame extends downward through the top wall and is fixedly connected to the side of the circulating water-cooled plate away from the hinge. Each circulating water-cooled plate is arranged on the top of the air flow guiding plate through a hinge and a connecting frame.

[0015] As a further description of the above solution, it further includes a water collecting platform. The water collecting platform is arranged below two adjacent circulating water-cooled plates. The water collecting platform is arranged on the top of the air flow guiding plate through a connecting piece, and a cooling air channel is reserved in the middle of the water collecting platform.

[0016] As a further description of the above solution, the water collecting platform is provided with a drainage connecting pipe. One end of the drainage connecting pipe is communicated with the water collecting platform, and the other end of the drainage connecting pipe extends downward out of the side wall. The air flow guiding plate is a rectangular structure with an accommodating cavity in the middle.

[0017] Advantages and effects of the present invention:

[0018] 1. This invention patent utilizes a closed water-cooled housing structure, which is specifically used for cooling the transformer in the integrated device. This design realizes the circulating flow of air in the closed housing through the air-cooling mechanism below the transformer. The air-cooling mechanism blows the air upward. After being guided by the insulating cylinder and the air resistance plate, the air flow can flow along the surface of the transformer winding. After the hot air is discharged from above the insulating cylinder, it first passes through the upper circulating water-cooled plate for preliminary cooling. At the same time, the water collecting platform also plays a role in guiding the air flow to ensure that the hot air circulates through the channel in the middle of the water collecting platform. The hot air that has been preliminarily cooled by the circulating water-cooled plate is forced to flow to both sides due to the blocking effect of the circulating water-cooled plate. The presence of the air flow guiding plate further guides the hot air to flow along the inner wall of the water-cooled housing for secondary cooling, thereby effectively transferring heat. Finally, the cooled air returns to the bottom of the transformer.

[0019] 2. This invention patent utilizes an innovative two-stage cooling technology. First, through the guidance of the air resistance plate and the air flow guiding plate, the air flow is guided to the circulating water-cooled plate above the transformer, thereby realizing the preliminary cooling of the hot air. Subsequently, the blocking effect of the circulating water-cooled plate causes the hot air to diffuse to both sides. At this time, the air flow guiding plate plays a role again, guiding the air flow to flow along the side wall of the second housing. There is a circulating water-cooled pipeline in the side wall of the second housing to further cool the hot air for the second time. This unique design can quickly remove a large amount of heat generated by the transformer during high-load operation, effectively reduce the working temperature of the equipment, and significantly improve its heat dissipation performance.

[0020] 3. In the present invention, the inclination angle of the circulating water-cooled plate can be flexibly adjusted by the height regulator at the top of the water-cooled housing. Adjusting the inclination angle of the circulating water-cooled plate brings significant advantages. First, while the circulating water-cooled plate initially cools the hot air, it also guides the gas flow. Due to the obstruction of the circulating water-cooled plate, after the initial cooling, the hot air will flow to both sides through the gap generated by the inclination between the circulating water-cooled plate and the air flow guiding plate. By adjusting the inclination angle, the gap increases, the hot air flow rate increases, and thus it can flow to both sides more effectively for secondary cooling. Second, during shutdown inspection, condensate may form on the surface of the circulating water-cooled plate. Adjusting the inclination angle can make the condensate flow into the water collection platform below the circulating water-cooled plate more quickly, thus preventing the accumulation of condensate on the circulating water-cooled plate and avoiding possible adverse effects.

[0021] 4. The second housing of the transformer in the present invention adopts a modular design. Among them, the side wall of the second housing is composed of an inner wall and an outer wall, and installation grooves are provided on the side surfaces of the inner and outer walls. The circulating water-cooled pipeline is arranged inside the side wall of the second housing through the installation grooves. This design facilitates the disassembly and cleaning of the circulating water-cooled pipeline in the second housing, reduces the complexity and time cost of maintenance, and enables users to perform daily maintenance and troubleshooting more quickly and efficiently.

[0022] 5. The present invention has innovatively optimized the design of the internal air duct structure. First, a wind resistance plate is added outside the insulating cylinder of the transformer, which effectively restricts and blocks the air flow blown by the bottom fan of the transformer. The synergistic effect of the wind resistance plate and the insulating cylinder ensures that the air flow smoothly flows along the surface of the transformer winding. Second, while guiding the hot air flow, the air flow guiding plate reduces the gap with the side wall of the first housing on the premise of keeping the gas flow rate constant, thereby increasing the wind speed of the air flow and significantly improving the cooling efficiency.

[0023] 6. Compared with traditional air-cooling technologies, the present invention only relies on the built-in fan of the equipment to drive the internal air circulation and combines a series of water-cooling technologies to achieve temperature reduction. This process is completely carried out in a closed space, effectively isolated from the external environment, thus significantly reducing noise during operation and being suitable for application environments with strict noise control requirements.

[0024] 7. The housing of the present invention adopts a closed design, which can prevent external impurities such as dust and moisture from entering the equipment interior, reducing electrical faults and safety hazards caused by impurities. The transformer operates in a relatively closed and stable environment, greatly improving the safety and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the motor - frequency converter - transformer integrated device according to an embodiment of the present invention;

[0026] Figure 2 Front view of the first housing according to an embodiment of the present invention;

[0027] Figure 3 Rear view of the first housing according to an embodiment of the present invention;

[0028] Figure 4 Cross-sectional view of the first housing according to an embodiment of the present invention;

[0029] Figure 5 Schematic assembly diagram of the motor and the frequency converter according to an embodiment of the present invention;

[0030] Figure 6 Three-dimensional assembly model of the motor and the motor platform according to an embodiment of the present invention;

[0031] Figure 7 Three-dimensional schematic diagram of the transformer according to an embodiment of the present invention;

[0032] Figure 8 Three-dimensional assembly schematic diagram of the insulating cylinder, the insulating cylinder fixing buckle and the air resistance plate according to an embodiment of the present invention;

[0033] Figure 9 Assembly drawing of the fan and the transformer working platform according to an embodiment of the present invention;

[0034] Figure 10 Schematic assembly diagram of the fan, the transformer working platform and the air guiding structure according to an embodiment of the present invention;

[0035] Figure 11 Three-dimensional schematic diagram of the air flow guiding plate according to an embodiment of the present invention;

[0036] Figure 12 Three-dimensional assembly schematic diagram of the air resistance plate according to an embodiment of the present invention;

[0037] Figure 13 For Figure 12 Schematic diagram of the T-shaped bracket structure;

[0038] Figure 14 Three-dimensional position schematic diagram of the cooling water plate, the water collecting platform and the air flow guiding plate according to an embodiment of the present invention;

[0039] Figure 15 Three-dimensional schematic diagram of the water collecting platform and the drainage pipe according to an embodiment of the present invention;

[0040] Figure 16 For Figure 15 Three-dimensional schematic diagram of the water collecting platform;

[0041] Figure 17 For Figure 15 Three-dimensional schematic diagram of the drainage pipe;

[0042] Figure 18Three-dimensional assembly schematic diagram of the circulating water cooling plate and the water cooling plate height adjuster according to the embodiment of the present invention;

[0043] Figure 19 is Figure 18 Three-dimensional schematic diagram of the circulating water cooling plate;

[0044] Figure 20 is Figure 18 Three-dimensional assembly schematic diagram of the water cooling plate height adjuster;

[0045] Figure 21 is Figure 20 Partial enlarged view of the water cooling plate height adjuster;

[0046] Figure 22 Three-dimensional assembly schematic diagram of the cooling water plate height adjusting frame and the connecting rod plug buckle according to the embodiment of the present invention;

[0047] Figure 23 Three-dimensional assembly schematic diagram of the limit baffle, connecting rod and steel rope according to the embodiment of the present invention;

[0048] Figure 24 Three-dimensional schematic diagram of the connecting frame according to the embodiment of the present invention;

[0049] Figure 25 Structural schematic of the circulating water cooling pipeline of the second housing according to the embodiment of the present invention Figure One ;

[0050] Figure 26 Structural schematic of the circulating water cooling pipeline of the second housing according to the embodiment of the present invention Figure Two ;

[0051] Figure 27 Three-dimensional schematic diagram of the circulating water cooling pipeline according to the embodiment of the present invention;

[0052] Figure 28 is Figure 1 Cross-sectional view;

[0053] Figure 29 Schematic diagram of the air flow during the cooling of the voltage regulator according to the embodiment of the present invention.

[0054] In the drawings, the list of components represented by each reference numeral is as follows:

[0055] 1. Motor, 2. Motor support frame, 3. Motor platform, 4. Frequency converter, 5. Frequency converter working platform, 6. Bolt, 7. Height adjustment frame, 8. Connecting rod, 9. Second housing, 11. Liquid outlet, 12. First housing, 14. Circulating water cooling plate, 15. Liquid inlet, 16. Water collecting platform, 17. Air flow guiding plate, 18. Wire outlet, 19. Insulating cylinder, 20. Air resistance plate, 21. Transformer working platform, 22. Fan, 23. Ventilation opening, 24. T-shaped bracket, 25. Transformer, 26. Insulating cylinder fixing buckle, 27. Drainage connecting pipe, 28. Steel wire, 29. Connecting frame, 30. Support plate, 31. Limit baffle, 32. Hinge, 33. Circulating water cooling pipeline, 34. Air flow. Detailed implementation manners

[0056] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0057] A special closed transformer water-cooled housing structure for an integrated device, comprising a first housing 12, a second housing 9, a frequency converter 4, a motor 1, an air-cooling mechanism and a transformer 25. The first housing 12 has a first installation cavity, and the first housing 12 is fixedly arranged on the side wall of the second housing 9; the second housing 9 has a second installation cavity, and the air-cooling mechanism is arranged in the second installation cavity; the frequency converter 4 is arranged on the upper part of the first installation cavity through the frequency converter working platform 5, and the motor 1 is arranged on the lower part of the first installation cavity through the motor platform 3. Specifically, the bottom of the motor platform 3 is fixedly connected with a motor support frame 2, and the motor support frame 2 is installed on the bottom of the first housing through a bolt 6; the transformer 25 is arranged in the second installation cavity through the transformer working platform 21, and the transformer 25 is located above the air-cooling mechanism.

[0058] The second installation cavity of the embodiment of the present invention is a space enclosed by a top wall 10, a side wall 9 and a bottom wall, wherein the top wall 10, the side wall 9 and the bottom wall are hermetically connected. Specifically, an outlet 18 for a transformer 25, a motor 1 and an inverter 4 is also provided on the side wall 9; a circulating water cooling pipeline 33 is arranged inside the side wall 9, and the circulating water cooling pipeline 33 is in an S shape. The second casing 9 of the transformer 25 in the present invention adopts a modular design. Among them, the side wall of the second casing 9 is composed of an inner wall and an outer wall, and installation grooves are arranged on the side surfaces of the inner wall and the outer wall. The circulating water cooling pipeline 33 is arranged inside the side wall of the second casing 9 through the installation grooves. This design facilitates the disassembly and cleaning of the circulating water cooling pipeline 33 in the second casing 9, reduces the complexity and time cost of maintenance, and enables users to perform daily maintenance and fault troubleshooting more quickly and efficiently; at the same time, the casing of the present invention adopts a closed design, which can prevent external impurities such as dust and moisture from entering the equipment, reducing electrical failures and safety hazards caused by impurities. The transformer 25 operates in a relatively closed and stable environment, greatly improving the safety and reliability of the equipment.

[0059] The air cooling mechanism of the embodiment of the present invention includes a wind resistance plate 20, a fan 22 and an air flow guiding plate 17. Among them, the fan 22 is arranged at the lower part of the second installation cavity through a transformer installation platform 21. A gap is left between the transformer installation platform 21 and the bottom wall, and a plurality of ventilation openings 23 are provided on the transformer installation platform 21, and each ventilation opening 23 is communicated with the inside of the insulating cylinder 19;

[0060] There are two air flow guiding plates 17, both of which are arranged on the transformer installation platform 21. The two air flow guiding plates 17 are respectively arranged on both sides of the transformer 25. A predetermined space is left between the two air flow guiding plates 17 and the side wall of the second casing 9, and a predetermined distance is left between the tops of the two air flow guiding plates 17 and the top wall of the second casing 9; an installation hole corresponding to the insulating cylinder 19 is provided in the wind resistance plate 20, and the periphery of the wind resistance plate 20 is hermetically connected to the air flow guiding plate 17 and the side wall of the second casing 9 respectively.

[0061] The air flow guide plate 17 of the present invention guides the flow of internal air, while reducing the gap with the side wall 9, increasing the air flow speed, and improving the heat dissipation efficiency. In addition, the present invention has made an innovative optimization design for the internal air path structure. First, a wind resistance plate 20 is added outside the insulating cylinder 19 of the transformer 25, effectively restricting and blocking the air flow blown out by the bottom fan of the transformer 25. The synergistic effect of the wind resistance plate 20 and the insulating cylinder 19 ensures that the air flow 34 flows smoothly along the surface of the transformer winding. Secondly, while guiding the flow of hot air, the air flow guide plate 17 reduces the gap with the side wall of the first casing 9 on the premise of keeping the gas flow constant, thereby increasing the wind speed of the air flow 34, significantly improving the cooling efficiency. And this invention patent, compared with the traditional air-cooling technology, only relies on the built-in fan 22 of the equipment to drive the internal air circulation and combines a series of water-cooling technologies to achieve cooling. This process is completely carried out in a closed space, effectively isolated from the external environment, thus significantly reducing the noise during operation, and is suitable for application environments with strict requirements for noise control.

[0062] When the transformer 25 of the embodiment of the present invention is cooled, the path of the cooling air is as follows: The air flow 34 goes upward from the outlet of the fan 22 through the gap between the high-voltage winding, the low-voltage winding and the iron core inside the transformer insulating cylinder 19, and then flows through the channel between the air flow guide plate 17 and the top circulating water-cooled plate 14 to the space between the air flow guide plates 17 on both sides and the side wall of the second casing 9, and then downward through the cavity between the transformer mounting platform 21 and the bottom wall of the second casing 9, and returns to the air inlet of the fan 22 from the cavity between the transformer mounting platform 21 and the bottom wall of the second casing 9 to complete the cycle. This invention patent uses an innovative two-stage cooling technology. First, through the guidance of the wind resistance plate 20 and the air flow guide plate 17, the air flow 34 is guided to the circulating water-cooled plate 14 above the transformer 25, thereby achieving the preliminary cooling of the hot air. Subsequently, the blocking effect of the circulating water-cooled plate 14 causes the hot air to diffuse to both sides. At this time, the air flow guide plate 17 plays a role again, guiding the air flow 34 to flow along the side wall of the second casing 9. A circulating water-cooling pipeline 33 is provided inside the side wall of the second casing 9 to further cool the hot air. This unique design can quickly remove a large amount of heat generated by the transformer 25 during high-load operation, effectively reduce the working temperature of the equipment, and significantly improve its heat dissipation performance.

[0063] Embodiments of the present invention further include a top water-cooled plate assembly, wherein the top water-cooled plate assembly includes a water-cooled plate height adjuster and a circulating water-cooled plate 14. There are two circulating water-cooled plates 14, and each circulating water-cooled plate 14 has an S-shaped water-cooling flow cavity. The S-shaped water-cooling flow cavity has a liquid inlet 11 and a liquid outlet 15. One side where the two circulating water-cooled plates 14 are adjacent is connected to the water-cooled plate height adjuster, and one side where the two circulating water-cooled plates 14 are away from each other is fixedly connected to the top of the air flow guiding plate 17 through a hinge 32. The two circulating water-cooled plates 14 are arranged at a predetermined angle to each other.

[0064] The water-cooled plate height adjuster of the embodiment of the present invention includes a height adjustment frame 7 and a connecting rod assembly. There are two height adjustment frames 7, and each height adjustment frame 7 is arranged on the outer wall of the top of the casing. The height adjustment frame 7 has a plurality of height adjustment slots along the height direction;

[0065] There are two connecting rod assemblies. Each connecting rod assembly includes a connecting rod 8 and a connecting frame 29. The connecting rod 8 is adapted to the size of the height adjustment slot, and the connecting rod 8 is placed in the height adjustment slot. One end of the connecting frame 29 is fixedly connected to the upper connecting rod 8, and the other end of the connecting frame 29 extends downward through the top wall 10 and is fixedly connected to the side of the circulating water-cooled plate 14 away from the hinge 32. Each circulating water-cooled plate 14 is arranged on the top of the air flow guiding plate 17 through a hinge 32 and a connecting frame 29.

[0066] Embodiments of the present invention further include a water collecting platform 16. The water collecting platform 16 is arranged below the two adjacent circulating water-cooled plates 14. The water collecting platform 16 is arranged on the top of the air flow guiding plate 17 through a connecting member, and a cooling air channel is provided in the middle of the water collecting platform 16. The present invention patent uses a closed water-cooled housing structure, which is specifically used for cooling the transformer 25 in the integrated device. This design realizes the circulating flow of air in the closed housing through the air-cooling mechanism below the transformer 25. The air-cooling mechanism blows the air upward. After being guided by the insulating cylinder 19 and the air resistance plate 20, the air flow 34 can flow along the surface of the transformer winding. After the hot air is discharged from above the insulating cylinder 19, it first passes through the upper circulating water-cooled plate 14 for preliminary cooling. At the same time, the water collecting platform 16 also plays a role in guiding the air flow to ensure that the hot air flows through the channel in the middle of the water collecting platform 16. The hot air preliminarily cooled by the circulating water-cooled plate 14 is forced to flow to both sides due to the blocking effect of the circulating water-cooled plate 14. The presence of the air flow guiding plate 17 further guides the hot air to flow along the inner wall of the water-cooled housing for secondary cooling, so as to effectively transfer heat. Finally, the cooled air returns to the bottom of the transformer.

[0067] In the embodiment of the present invention, the water collecting platform 16 is provided with a drain connecting pipe 27, one end of the drain connecting pipe 27 is communicated with the water collecting platform 16, and the other end of the drain connecting pipe 27 extends downward and extends outside the side wall 9; the air flow guiding plate 17 is a rectangular structure with a receiving cavity in the middle. In the present invention, the inclination angle of the circulating water cooling plate 14 can be flexibly adjusted by the height adjuster at the top of the water cooling housing. Adjusting the inclination angle of the circulating water cooling plate 14 can bring significant advantages. First, while the circulating water cooling plate 14 preliminarily cools the hot air, it also guides the gas flow. Due to the blocking of the circulating water cooling plate 14, after the hot air is preliminarily cooled, it will flow to both sides through the gap generated by the inclination between the circulating water cooling plate 14 and the air flow guiding plate 17. By adjusting the inclination angle, the gap increases, the hot air flow rate increases, so that it can flow to both sides more effectively for secondary cooling. Second, when the machine is shut down for inspection, condensed water may be generated on the surface of the circulating water cooling plate 14. Adjusting the inclination angle can make the condensed water flow into the water collecting platform 16 below the circulating water cooling plate 14 faster, thereby avoiding the accumulation of condensed water on the circulating water cooling plate 14 and preventing possible adverse effects.

[0068] Specifically, the transformer 25 in the embodiment of the present invention is placed on the transformer working platform 21, and there is a gap between the transformer working platform 21 and the bottom wall to promote air circulation. When the transformer 25 is installed and manufactured, the insulating cylinder 19 and the air resistance plate 20 have been assembled together, and they are positioned and fixed by the insulating cylinder fixing buckle 26. The air flow guiding plate 17 is fixed on the transformer working platform 21 by bolts, and at the same time, a plurality of T-shaped brackets 24 are installed on the side in contact with the air resistance plate 20. The air resistance plate 20 is mutually fixed with the air flow guiding plate 17 through the T-shaped brackets 24 and bolts 6. In addition, the water collecting platform 16 is firmly connected to the air flow guiding plate 17 by bolts 6 on both sides. There is a large channel in the middle of the water collecting platform 16, which also plays a role in restricting the flow of wind, so that the wind mainly flows through the middle channel.

[0069] One side of the circulating water cooling plate 14 is connected to the top of the air flow guiding plate 17 through a rotatable hinge 32, and the other side of the circulating water cooling plate 14 is arranged on the corresponding height adjusting frame 7 through a connecting frame 29. In addition, the height adjusting frame 7 includes an adjusting frame body and a supporting plate 30. There is an opening in the middle of the adjusting frame body, and a plurality of height adjusting openings are correspondingly arranged along the height on both sides of the opening. The supporting plate 30 is inserted and matched with the height adjusting openings. The supporting plate 30 and the side wall of the opening of the adjusting frame body enclose a height adjusting groove. The connecting rod 8 is placed in the height adjusting groove, and limiting baffles 31 are arranged at both ends of the connecting rod 8 to limit its movement. The bottom of the connecting rod 8 is connected with a connecting frame 29. A steel rope 28 is slidably connected to the top of the adjusting frame body, and one end of the steel rope 28 passes through the top of the adjusting frame body and is connected to the connecting rod 8. Through the cooperation of the steel rope 28, the height of the connecting rod 8 can be adjusted up and down, so as to adjust the inclination angle of the circulating water cooling plate 14. Once the inclination angle of the circulating water cooling plate 14 is adjusted to the ideal state, the supporting plate 30 is re-inserted into a new height adjusting opening to complete the adjustment.

[0070] The second housing 9 of the transformer 25 adopts a modular design. Among them, the side wall of the second housing 9 is composed of an inner wall and an outer wall, and installation grooves are arranged on the side surfaces of the inner wall and the outer wall. The circulating water cooling pipeline 33 is arranged inside the side wall of the second housing 9 through the installation grooves.

[0071] The above are only several embodiments of the present application, and do not impose any form of limitation on the present application. Although the present application is disclosed above with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art, without departing from the scope of the technical solution of the present application, makes some changes or modifications using the technical content disclosed above, which are equivalent to equivalent implementation cases and all belong to the scope of the technical solution.

Claims

1. A closed transformer water-cooling housing structure for integrated equipment, characterized in that: The invention comprises a first housing (12), a second housing (9), a frequency converter (4), a motor (1), an air cooling mechanism and a transformer (25), wherein the first housing (12) has a first installation cavity, and the first housing (12) is fixedly arranged on the side wall of the second housing (9); the second housing (9) has a second installation cavity, and the air cooling mechanism is arranged in the second installation cavity; the frequency converter (4) is arranged at the upper part of the first installation cavity through a frequency converter working platform (5), and the motor (1) is arranged at the lower part of the first installation cavity through a motor platform (3); The transformer (25) is arranged in the second installation cavity via a transformer working platform (21), and the transformer (25) is located above the air cooling mechanism.

2. The closed transformer water-cooling housing structure for integrated equipment according to claim 1 is characterized in that: The second casing (9) comprises a top wall, a side wall and a bottom wall, and the top wall, the side wall and the bottom wall are sealed and connected to each other. A circulating water cooling pipeline (33) is arranged inside the side wall, and the circulating water cooling pipeline (33) is S-shaped.

3. The closed transformer water-cooling housing structure for integrated equipment according to claim 1 is characterized in that: The air cooling mechanism comprises a wind resistance plate (20), a fan (22) and an air flow guide plate (17); the fan (22) is arranged at the lower part of the second installation cavity through a transformer installation platform (21); a gap is left between the transformer installation platform (21) and the bottom wall; and the transformer installation platform (21) is provided with a plurality of ventilation holes (23); each of the ventilation holes (23) is communicated with the interior of the insulating cylinder (19); Two airflow guide plates (17) are provided, and both of the two airflow guide plates (17) are arranged on the transformer mounting platform (21). The two airflow guide plates (17) are respectively arranged on both sides of the transformer (25). A predetermined space is left between the two airflow guide plates (17) and the side walls of the second housing (9), and a predetermined distance is left between the tops of the two airflow guide plates (17) and the top wall of the second housing (9). The wind blocking plate (20) is provided with a mounting hole corresponding to the insulating cylinder (19), and the four sides of the wind blocking plate (20) are respectively sealed and connected to the airflow guide plate (17) and the side walls of the second housing (9).

4. The closed transformer water-cooling housing structure for integrated equipment according to claim 3 is characterized in that: When the transformer (25) is cooled, the path of the cooling air is as follows: the airflow (34) flows upward from the air outlet of the fan (22) through the gaps between the high-voltage winding, the low-voltage winding and the iron core inside the transformer insulation cylinder (19), then flows through the cavity between the airflow guide plate (17) and the top circulating water cooling plate (14) to the space between the airflow guide plates (17) on both sides and the side walls of the second housing (9), and flows downward through the cavity between the transformer mounting platform (21) and the bottom wall of the second housing (9), and returns from the cavity between the transformer mounting platform (21) and the bottom wall of the second housing (9) to the air inlet of the fan (22) to complete the circulation.

5. The closed transformer water-cooling housing structure for integrated equipment according to claim 1 is characterized in that: It also includes a top water cooling plate assembly, the top water cooling plate assembly includes a water cooling plate height adjuster and a circulating water cooling plate (14), two circulating water cooling plates (14) are provided, each of the circulating water cooling plates (14) has an S-shaped water cooling flow cavity, and the S-shaped water cooling flow cavity has a liquid inlet (11) and a liquid outlet (15), the adjacent sides of the two circulating water cooling plates (14) are connected to the water cooling plate height adjuster, the sides of the two circulating water cooling plates (14) that are away from each other are fixedly connected to the top of the airflow guide plate (17) through a hinge (32), and the two circulating water cooling plates (14) are arranged at a predetermined angle.

6. The closed transformer water-cooling housing structure for integrated equipment according to claim 5 is characterized in that: The water cooling plate height adjuster comprises a height adjustment frame (7) and a connecting rod assembly, two height adjustment frames (7) are provided, and each of the height adjustment frames (7) is provided on the outer wall of the top of the housing, and the height adjustment frame (7) has a plurality of height adjustment slots along the height; Two connecting rod assemblies are provided, each of which includes a connecting rod (8) and a connecting frame (29); the connecting rod (8) is adapted to the size of the height adjustment slot, and the connecting rod (8) is placed in the height adjustment slot; one end of the connecting frame (29) is fixedly connected to the upper connecting rod (8), and the other end of the connecting frame (29) extends downward through the top wall (10) and is fixedly connected to a side of the circulating water cooling plate (14) away from the hinge (32); each circulating water cooling plate (14) is arranged on the top of the airflow guide plate (17) through the hinge (32) and the connecting frame (29).

7. The closed transformer water-cooling housing structure for integrated equipment according to claim 6 is characterized in that: It also includes a water collecting platform (16), which is arranged below two adjacent circulating water cooling plates (14), and the water collecting platform (16) is arranged on the top of the air flow guide plate (17) through a connecting piece, and a cooling air channel is left in the middle of the water collecting platform (16).

8. The closed transformer water-cooling housing structure for integrated equipment according to claim 7 is characterized in that: The water collection platform (16) is provided with a drainage connecting pipe (27), one end of which is connected to the water collection platform (16), and the other end of which extends downward and out of the side wall (9); the air flow guide plate (17) is a rectangular structure with a accommodating cavity in the middle.

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