Efficient heat dissipation type large-capacity oil-immersed transformer

Abstract

The invention discloses an efficient heat dissipation type large-capacity oil-immersed transformer which comprises a transformer box body, a plurality of heat dissipation assemblies are symmetrically arranged on the front side and the rear side of the transformer box body, fixing frames are installed on the left side and the right side of the transformer box body, and an oil conservator is installed on the fixing frame on the right side. A cooling water tank used for conducting auxiliary cooling on the heat dissipation assembly is installed on the left side fixing frame, a plurality of sets of oil ports communicated with an inner cavity of the transformer box body are symmetrically formed in the front side face and the rear side face of the transformer box body, and filtering assemblies are connected between the oil ports and the heat dissipation assembly; the left side of the filtering assembly is connected with an impurity cleaning assembly used for removing impurities, the left side of the impurity cleaning assembly is connected with a cleaning assembly, and the cleaning assembly is connected with the filtering assembly. The filter plate I can be automatically cleaned, impurities are removed from the heat dissipation pipeline, and the situation that the heat dissipation effect is reduced due to the fact that the impurities block oil ports of the heat dissipation fins is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to a high-efficiency heat dissipation type large-capacity oil-immersed transformer. Background Art

[0002] Transformers transform voltage during power transmission in the power grid, ensuring a stable power supply. During operation, oil-immersed transformers inject oil to dissipate heat and insulate the transformer, ensuring proper operation. Under normal circumstances, mineral oil is used in oil-immersed transformers for economic reasons and technological maturity. However, in areas with stricter fire protection and environmental requirements, silicone oil may be replaced with this oil. Silicone oil offers superior electrical insulation, thermal stability, flame retardancy, environmental friendliness, and low-temperature fluidity compared to mineral oil. During transformer operation, impurities are inevitably generated. These primarily consist of metal particles and fibers. Metal particles are primarily caused by wear of the transformer's windings or core, as well as electromagnetic vibration. Fiber impurities primarily result from aging sealing materials or damaged filter media. After a period of operation, the cooling oil must be filtered to prevent impurities from clogging the pipes, reducing the oil's cooling efficiency, and impacting the transformer's normal operation.

[0003] After searching, the invention patent document with announcement number CN114288736B discloses an oil-immersed transformer oil filter assembly, including a transformer body, a filter mechanism installed on the transformer body, a control mechanism installed on the filter mechanism, a locking mechanism installed on the filter mechanism, a sliding mechanism installed on the filter mechanism, a limiting mechanism installed on the sliding mechanism, and a reset mechanism installed on the filter mechanism; the filter mechanism is firmly installed by the locking mechanism, and the cooperation of the filter mechanism and the control mechanism facilitates the extraction and filtration of sediment debris on the inner side of the bottom of the transformer body, thereby ensuring the purity of the oil and reducing the loss to the transformer body; the cooperation of the sliding mechanism and the limiting mechanism is conducive to preventing the filter mechanism from being blocked, facilitating better filtering of the oil; the sliding mechanism can be well reset under the action of the reset mechanism, and it is convenient to scrape out and clean the debris inside the filter mechanism.

[0004] After the above device filters the oil, the cover plate and filter need to be removed before the debris can be cleaned. This process requires multiple manual interventions and is relatively troublesome. In addition, when the filter is removed for cleaning, the transformer is usually in working condition (powered on), and each time the filter is removed for cleaning, the staff will be in danger. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-efficiency heat-dissipating large-capacity oil-immersed transformer, which can automatically clean the filter plate and remove impurities from the heat dissipation pipe, thereby preventing impurities from clogging the oil port of the heat sink and causing a decrease in the heat dissipation effect, and can improve the heat dissipation effect of the heat sink on the silicone oil through the cooling coil.

[0006] The present invention adopts the following technical solutions: A high-efficiency heat-dissipating large-capacity oil-immersed transformer comprises a transformer case, wherein a plurality of heat-dissipating components are symmetrically arranged on the front and rear sides of the transformer case, a fixing frame is installed on the left and right sides of the transformer case, an oil pillow is installed on the right fixing frame, and a cooling water tank for assisting in cooling the heat-dissipating components is installed on the left fixing frame, a plurality of groups of oil ports communicating with the inner cavity of the transformer case are symmetrically opened on the front and rear sides of the transformer case, a filter assembly for filtering impurities contained in silicone oil is connected between the oil port and the heat-dissipating component, an impurity cleaning assembly for removing impurities is connected to the left side of the filter assembly, a cleaning assembly is connected to the left side of the impurity cleaning assembly, and the cleaning assembly is connected to the filter assembly.

[0007] Optionally, the filtering assembly includes a vertical pipe, a symmetrically arranged elbow and an electric valve. The vertical pipe is arranged between the two elbows and is fixed and communicated with the elbows. The upper elbow is connected to the corresponding oil port. A metal filter plate is installed in the vertical pipe. The upper electric valve is installed at the connection between the upper elbow and the vertical pipe. The lower electric valve is installed at the connection between the lower elbow and the vertical pipe.

[0008] Optionally, the impurity cleaning component includes a T-shaped support frame and a blocking mechanism, with corresponding side panels installed on both sides of the support frame, through holes opened on the surface of the side panels, the blocking mechanism is arranged on the left side of the support frame, a downward pressure piece is slidingly arranged in the vertical frame of the support frame, an electric push rod is installed on the upper end face of the support frame, the piston rod of the electric push rod passes through the upper end face of the support frame and is fixed to the downward pressure piece, partitions are symmetrically fixed in the horizontal frame of the support frame, and a feeding port is provided between the two partitions to allow the downward pressure piece to pass through.

[0009] Optionally, a partition divides the horizontal frame inner cavity of the support frame into two parts, a detachable collection frame is installed in the lower inner cavity, and a trapezoidal blocking block is symmetrically and slidingly installed in the upper inner cavity, the inclined surfaces of the two blocking blocks are opposite to each other, the lower pressing piece is adapted to the blocking blocks, and the lower pressing piece can push the blocking blocks on both sides to move, and a spring five is fixedly connected between the outer side surface of the blocking block and the inner wall of the support frame.

[0010] Optionally, the blocking mechanism includes a horizontal connecting tube 1, a hollow support shaft, a circular vibration plate and a metal filter plate 2. The right end of the connecting tube 1 is fixed to the left plate and communicates with the through hole. The filter plate 2 is installed in the through hole of the left plate. The vibration plate is slidably arranged in the connecting tube 1. A cover is installed at the left end of the connecting tube 1. The left end of the support shaft is rotatably matched with the cover. The right end of the support shaft passes through the vibration plate and the filter plate 2. The filter plate 2 is fixed to the support shaft. The vibration plate is slidably matched with the support shaft. A spring 2 is fixedly connected between the vibration plate and the cover and is sheathed on the circumferential surface of the support shaft.

[0011] Optionally, the support shaft is rotated beyond the circumference of the filter plate 2 and is provided with a scraper for cleaning the surface of the filter plate 2 and a fan blade for driving the support shaft to rotate, and a locking component for limiting the vibration plate is provided in the support shaft.

[0012] Optionally, the locking assembly includes a sliding shaft and a card block, the left end of the sliding shaft is fixedly provided with a circular support block that slides in the inner cavity of the support shaft, the left side of the support block is fixedly provided with a push rod, the right end of the sliding shaft is fixedly provided with a head, a through groove is provided on the circumferential surface of the support shaft, the card block is slidably provided in the through groove, the lower end face of the card block is fixedly connected to the inner wall of the support shaft with a spring three, a trapezoidal card groove two is provided on the right side of the card block, the card groove two is adapted to the push rod, and the push rod slides in the card groove two, the inner cavity of the support shaft is fixedly provided with a sleeve, the sliding shaft passes through the sleeve and slides together, and the inner circumferential surface of the vibration plate is provided with an annular card groove one, which is adapted to the card block.

[0013] Optionally, the cleaning component includes an oil storage tank, an oil pump and two symmetrically arranged electric valves, a cavity is left in the oil chamber of the oil storage tank, a connecting pipe two is fixedly installed on the upper end of the oil storage tank, the upper end of the connecting pipe two is fixed to and connected with the connecting pipe one, the upper electric valve two is arranged between the right side plate of the support frame and the vertical pipeline, the left end of the oil pump is connected to the lower end of the oil storage tank through a connecting pipe, the lower electric valve two is arranged between the oil pump and the vertical pipeline, and a heating plate for heating the silicone oil is installed on the outer wall of the oil storage tank.

[0014] Optionally, the heat dissipation assembly includes heat dissipation oil pipes and a plurality of heat dissipation fins that are symmetrically arranged in the upper and lower parts. The heat dissipation fins are hollow and fixedly arranged between the two heat dissipation oil pipes and communicate with the two heat dissipation oil pipes. One end of the upper heat dissipation oil pipe is fixed and communicated with one end of the bent pipe below. The lower heat dissipation oil pipe is fixed to the outer end face of the corresponding oil port below and is communicated with the oil port.

[0015] Optionally, a cooling coil is fixedly provided on the outer side of the heat sink, and the cooling coil is connected to the cooling water tank.

[0016] In summary, the present invention has the following beneficial effects: 1. In the present invention, the impurities contained in the organic silicone oil in the transformer box are filtered and cleaned by the filter component to prevent the impurities from clogging the pipeline and causing the heat dissipation efficiency of the organic silicone oil to be reduced, thereby affecting the normal operation of the transformer. Then, the impurities filtered out of the filter component are collected and processed by the cleaning component and the impurity cleaning component. The whole process is automated, reducing manual intervention and effectively ensuring the heat dissipation effect of the organic silicone oil. 2. In the present invention, releasing the limit of the locking assembly on the vibration plate allows the vibration plate to shake some organic silicone oil and impurities attached to the second filter plate to the upper slope of the two blocking blocks. As the lower pressure piece continues to descend, the wedge-shaped block squeezes the blocking block, causing the blocking block to slide, opening the discharge port, and allowing the organic silicone oil containing impurities to fall into the collection frame for collection. In addition, during the descent of the lower pressure piece, the wedge-shaped block can scrape the slope of the blocking block, thereby improving the effect of impurity removal. 3. In the present invention, when the impurities in the collection frame have been collected to an appropriate level, the collection frame needs to be taken out and the impurities removed. At this time, the second filter screen, the support frame and the lower pressing member can be cleaned simultaneously. In addition, the collection frame can collect impurities after the first filter plate has been automatically cleaned multiple times, reducing the number of times the staff need to clean the silicone oil, thereby reducing the number of risks encountered by the staff during operation. 4. In the present invention, the cooling water in the cooling water tank is cooled by the cooling mechanism, thereby improving the cooling effect of the cooling coil on the heat sink, enhancing the heat dissipation efficiency of the heat sink on the silicone oil, and ensuring the stable operation of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 The structure of the heat dissipation component of the present invention is schematically shown. Figure 1 ; Figure 3 It is a partial structural schematic diagram of the present invention; Figure 4 It is a schematic structural diagram of the cleaning component and the filtering component of the present invention; Figure 5 Schematic diagram of the structure of the impurity cleaning component of the present invention Figure 1 ; Figure 6 Schematic diagram of the structure of the impurity cleaning component of the present invention Figure 2 ; Figure 7 is a schematic structural diagram of the barrier assembly of the present invention; Figure 8 It is a structural schematic diagram of the locking assembly of the present invention; Figure 9 A cross-sectional view of the impurity cleaning assembly of the present invention Figure 1 ; Figure 10 For the present invention Figure 9 A detailed enlarged picture of output; Figure 11 For the present invention Figure 9 B is a detailed enlarged picture; Figure 12 For the present invention Figure 9 C shows the details of the enlarged picture; Figure 13 A cross-sectional view of the impurity cleaning assembly of the present invention Figure 2 ; Figure 14 For the present invention Figure 11 D-shaped detail enlarged picture.

[0018] In the figure, 1. transformer box; 2. heat dissipation component; 3. filter component; 4. oil pillow; 5. cooling water tank; 6. impurity cleaning component; 7. cleaning component; 11. oil port; 12. fixing frame; 21. heat dissipation oil pipe; 22. heat sink; 23. cooling coil; 31. elbow; 32. electric valve 1; 33. vertical pipe; 34. filter plate 1; 61. support frame; 611. collection frame; 612. partition; 613. feed port; 614. blocking block; 615. spring 5; 62. electric push rod; 621. lower pressure piece; 6211. wedge block; 6212. top plate; 622. groove; 623. spring 1; 6 24. Pressing plate; 63. Side plate; 631. Through hole; 632. Blocking plate; 64. Connecting pipe 1; 641. Sealing cover; 642. Slide groove; 65. Vibrating plate; 651. Sliding block; 652. Spring 2; 653. Annular groove 1; 66. Filter plate 2; 67. Support shaft; 671. Scraper; 672. Fan blade; 673. Through groove; 674. Sleeve; 68. Block; 681. Slot 2; 682. Spring 3; 69. Sliding shaft; 691. Ejector head; 692. Spring 4; 693. Support block; 694. Push rod; 71. Connecting pipe 2; 72. Oil storage tank; 73. Oil pump; 74. Electric valve 2. DETAILED DESCRIPTION

[0019] The principles and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0020] See also Figure 1-14 The present invention will be described in detail below with reference to the accompanying drawings and embodiments: like Figure 1-3As shown, a high-efficiency heat-dissipating large-capacity oil-immersed transformer includes a transformer case 1. Several heat-dissipating components 2 are symmetrically arranged on the front and rear sides of the transformer case 1. The heat-dissipating components 2 are used to dissipate heat from the low-viscosity silicone oil in the transformer case 1. Fixing brackets 12 are fixed to the left and right sides of the transformer case 1 by bolts. The right fixing bracket 12 is mounted with an oil pillow 4, and the left fixing bracket 12 is mounted with a cooling water tank 5. The cooling water tank 5 is used to assist in cooling the heat-dissipating components 2 and improve the cooling effect on the silicone oil. The front and rear sides of the transformer box 1 are symmetrically provided with a plurality of oil ports 11 communicating with the inner cavity of the transformer box 1. A filter assembly 3 is connected between the oil port 11 and the heat dissipation assembly 2. The filter assembly 3 is used to filter and clean impurities contained in the organic silicone oil in the transformer box 1 to prevent impurities from clogging the pipe and reducing the heat dissipation effect of the heat dissipation assembly 2, thereby affecting the normal operation of the transformer. The left side of the filter component 3 is connected to the impurity cleaning component 6, and the left side of the impurity cleaning component 6 is connected to the cleaning component 7, which is also connected to the filter component 3. The cleaning component 7 and the impurity cleaning component 6 are used in conjunction to collect and process the impurities filtered out of the filter component 3.

[0021] The above-mentioned oil pillow 4 is the existing technology. The oil pillow 4 is connected to the inner cavity of the transformer box 1 through an external connecting pipe. When the internal silicone oil of the transformer expands or contracts due to load changes or ambient temperature fluctuations, the oil pillow 4 can accommodate the expansion or contraction of the volume of the silicone oil, ensuring that the oil in the inner cavity of the transformer box 1 can ensure the normal operation of the transformer and avoid abnormal pressure or vacuum caused by drastic changes in the oil level.

[0022] The above-mentioned impurities mainly include metal particle impurities and fiber impurities. The main sources of metal particle impurities are the wear of the winding or iron core in the transformer and the shedding of electromagnetic vibration. The fiber impurities mainly include the aging of the sealing material inside the transformer or the damage of the filter material.

[0023] like Figure 3-4 As shown, in this embodiment, the filter assembly 3 includes a vertical pipe 33 and two sets of symmetrically arranged elbows 31 and an electric valve 1 32. The vertical pipe 33 is arranged between the two elbows 31. The two ends of the vertical pipe 33 are respectively fixed to and communicate with the upper and lower elbows 31. One end of the upper elbow 31 is fixed to the outer end surface of the corresponding oil port 11 above and is connected to the oil port 11. A metal filter plate 1 34 for filtering the organic silicone oil in the transformer box 1 is fixedly installed in the middle of the vertical pipe 33. The surface of the filter plate 1 34 is provided with a plurality of filter holes. The upper electric valve 1 32 is fixed at the connection between the upper elbow 31 and the vertical pipe 33 to seal the lumen at the connection. The lower electric valve 1 32 is fixed at the connection between the lower elbow 31 and the vertical pipe 33 to seal the lumen at the connection. When the electric valves 32 on the upper and lower sides are in a closed state, impurities on the surface of the filter plate 34 can be cleaned.

[0024] like Figure 1-3 As shown, in this embodiment, the heat dissipation assembly 2 includes a heat dissipation oil pipe 21 and a plurality of heat dissipation fins 22 symmetrically arranged in the upper and lower parts. One end of the heat dissipation oil pipe 21 is connected to the outside, and the other end is closed. The heat dissipation fins 22 are hollow. The heat sink 22 is fixedly disposed between the two heat dissipation oil pipes 21 and communicates with the two heat dissipation oil pipes 21; One end of the upper heat dissipation oil pipe 21 is fixed to and communicated with one end of the bent pipe 31 below. The lower heat dissipation oil pipe 21 is fixed to the outer end surface of the corresponding oil port 11 below and communicated with the oil port 11 .

[0025] Specifically, when the transformer operates under high load, the organic silicone oil inside heats up and expands, enters the upper elbow 31 through the upper oil port 11, and then enters the upper heat dissipation oil pipe 21 through the vertical pipe 33 and the lower elbow 31. When passing through the vertical pipe 33, impurities contained in the organic silicone oil are blocked by the filter plate 1 34. The filtered organic silicone oil enters the heat sink 22 for heat dissipation. The organic silicone oil after heat dissipation enters the transformer box 1 again through the lower heat dissipation oil pipe 21, forming a natural circulation heat dissipation.

[0026] like Figure 1-3 As shown, in this embodiment, a cooling coil 23 is fixedly provided on the outer side of the heat sink 22, the cooling coil 23 is connected to the cooling water tank 5, and a cooling mechanism is provided inside the cooling water tank 5. The cooling water in the cooling water tank 5 is cooled by the cooling mechanism, thereby improving the cooling effect of the cooling coil 23 on the heat sink 22. The above-mentioned cooling water tank 5 and cooling mechanism are both existing technologies and are not drawn or described in detail here.

[0027] like Figure 5-14 As shown, in this embodiment, the impurity cleaning assembly 6 includes a T-shaped support frame 61 and a blocking mechanism. Matching side plates 63 are symmetrically fixedly provided on both sides of the support frame 61. Through holes 631 are opened on the surface of the side plates 63. The blocking mechanism is provided on the left side of the support frame 61. A pressing member 621 is provided in the vertical frame of the support frame 61 so as to slide up and down. A partition 612 is symmetrically fixedly provided in the horizontal frame of the support frame 61. A feeding port 613 is provided between the two partitions 612 so as to allow the pressing member 621 to pass through. The inner cavity of the horizontal frame of the support frame 61 is divided into two parts by a partition 612. The lower inner cavity is installed with a detachable collection frame 611, and the upper inner cavity is symmetrically and slidingly installed with a trapezoidal blocking block 614. The inclined surfaces of the two blocking blocks 614 are opposite to each other, and a spring five 615 is fixedly connected between the outer side surface of the blocking block 614 and the inner wall of the support frame 61. The elastic force of the spring five 615 is used to make the two blocking blocks 614 block the discharge port 613.

[0028] Specifically, the lower pressure piece 621 is lowered to drive the blocking blocks 614 on both sides to move outward, so that the discharge port 613 is opened, so that the lower pressure piece 621 can drive the organic silicone oil containing impurities to fall into the collection frame 611. After the lower pressure piece 621 is reset, the spring five 615 drives the blocking block 614 to reset.

[0029] like Figure 6 As shown, in this embodiment, the collection frame 611 is used to collect filtered impurities and part of the silicone oil. After the collection frame 611 is installed in the support frame 61, it will be fixed to the support frame 61 by bolts to avoid accidental falling off, and then the connection is sealed.

[0030] like Figure 6 As shown, in this embodiment, an electric push rod 62 is fixedly provided on the upper end surface of the support frame 61. The piston rod of the electric push rod 62 passes through the upper end surface of the support frame 61 and is fixed to the lower pressure piece 621. The electric push rod 62 drives the lower pressure piece 621 to move up and down in the support frame 61.

[0031] like Figure 13-14 As shown, in this embodiment, the lower pressing member 621 is composed of a horizontal plate and symmetrically arranged vertical rods. A top plate 6212 is fixedly provided between the two vertical rods near the bottom. A pressing plate 624 is provided above the top plate 6212. The pressing plate 624 slides between the two vertical rods and also slides within the vertical frame of the support frame 61. A groove 622 is formed on the lower surface of the horizontal plate, and a spring 1 623 is symmetrically fixedly connected between the bottom surface of the groove 622 and the pressure plate 624; A wedge block 6211 that matches the blocking block 614 is fixedly set below the vertical rod. The wedge block 6211 is driven to squeeze the blocking block 614 by the downward movement of the pressing piece 621, so that the blocking block 614 slides. In the process of squeezing, the wedge block 6211 can scrape off impurities deposited on the inclined surface of the blocking block 614, thereby improving the collection effect of impurities.

[0032] like Figure 9As shown, in this embodiment, a blocking plate 632 is fixedly provided on the inner wall of the side plate 63. The blocking plates 632 on both sides can cooperate with the top plate 6212 and the pressure plate 624 to seal the vertical frame of the support frame 61 to prevent the organic silicone oil from entering the support frame 61 and remaining in the support frame 61 in large quantities.

[0033] Specifically, when the lower pressing member 621 descends, the blocking plates 632 on both sides will block the pressing plate 624, so that the pressing plate 624 stays in place.

[0034] like Figure 7-12 As shown, in this embodiment, the blocking mechanism includes a horizontal connecting pipe 1 64, a hollow support shaft 67, a circular vibration plate 65 and a metal filter plate 2 66. The filter plate 2 66 and the filter plate 1 34 can both filter impurities. The right end of the connecting pipe 1 64 is fixed to the left side plate 63 of the support frame 61 and communicates with the through hole 631. The second filter plate 66 is fixedly disposed in the through hole 631 of the left side plate 63. The vibration plate 65 is slidably disposed in the connecting pipe 1 64. The left end of the connecting pipe 1 64 is fixedly provided with a cover 641. The left end of the support shaft 67 is in rotational engagement with the cover 641, and the right end of the support shaft 67 passes through the vibration plate 65 and the second filter plate 66. The second filter plate 66 is fixed to the support shaft 67, and the vibration plate 65 and the support shaft 67 are in sliding engagement. The inner wall of the connecting tube 64 is symmetrically provided with a slide groove 642, and the circumferential surface of the vibration plate 65 is symmetrically fixed with a slider 651 that slides in the slide groove 642. The slider 651 can prevent the vibration plate 65 from rotating on the support shaft 67, and a spring 2 652 is fixedly connected between the vibration plate 65 and the cover 641 and is sheathed on the circumferential surface of the support shaft 67.

[0035] like Figure 7-12 As shown, in this embodiment, the support shaft 67 extends beyond the circumferential surface of the filter plate 2 66 and is rotatably provided with a scraper 671 and a fan blade 672. The scraper 671 includes a circular ring and a symmetrically arranged scraper. The scraper contacts the right side surface of the filter plate 2 66. The fan blade 672 is fixed to the circular ring. The fan blade 672 is driven to rotate by the flow of organic silicone oil, thereby driving the scraper to clean the surface of the filter plate 2 66 to prevent impurities in the organic silicone oil from accumulating on the surface of the filter plate 2 66 and causing blockage.

[0036] like Figure 7-12As shown, in this embodiment, a locking assembly is provided in the support shaft 67, which limits the position of the vibration plate 65. When the limit on the vibration plate 65 is released, the vibration plate 65 impacts the filter plate 2 66 through the elasticity of the spring 2 652, and before the impact, the silicone oil no longer drives the fan blade 672 to rotate. At this time, the impact force can shake some silicone oil and impurities attached to the filter plate 2 66 to the upper side of the inclined surface of the two blocking blocks 614.

[0037] like Figure 8-12 As shown, in this embodiment, the locking assembly includes a sliding shaft 69 and a clamping block 68. The left end of the sliding shaft 69 is fixedly provided with a circular support block 693 that slides in the inner cavity of the support shaft 67. A push rod 694 is fixedly provided on the left side of the support block 693. The right end of the sliding shaft 69 is fixedly provided with a head 691. A through groove 673 is provided on the circumferential surface of the support shaft 67, and the clamping block 68 is slidably set in the through groove 673. The lower end surface of the clamping block 68 is fixedly connected to the inner wall of the support shaft 67 by a spring three 682. A trapezoidal clamping groove two 681 is provided on the right side surface of the clamping block 68. The clamping groove two 681 is adapted to the push rod 694, and the push rod 694 slides in the clamping groove two 681.

[0038] Specifically, when the sliding shaft 69 moves to the left, the push rod 694 slides in the second card slot 681, squeezing the card block 68, causing the card block 68 to drop and retract into the through slot 673. At this time, the spring three 682 generates a compression amount.

[0039] like Figure 11-12 As shown, in this embodiment, a sleeve 674 is fixedly provided in the inner cavity of the support shaft 67, and the sliding shaft 69 passes through the sleeve 674 and is slidably fitted therein, and the sliding stability of the sliding shaft 69 is ensured by the sleeve 674; An annular clamping groove 653 is formed on the inner circumferential surface of the vibration plate 65 , and the annular clamping groove 653 is adapted to the clamping block 68 .

[0040] Specifically, after the organic silicone oil enters the support frame 61, it passes through the second filter plate 66 and pushes the vibration plate 65, causing the vibration plate 65 to slide on the circumferential surface of the support shaft 67. After the vibration plate 65 moves to the position of the block 68, it squeezes the block 68 and retracts it into the through groove 673 until the block 68 is reset in the annular groove 1 653. At this time, the position of the vibration plate 65 is fixed. After the surface of the filter plate 1 34 is cleaned, the lower pressure piece 621 is lowered to drive the top plate 6212 to squeeze the top head 691 of the right end of the support shaft 67, so that the sliding shaft 69 moves toward the direction of the block 68. The movement of the sliding shaft 69 drives the push rod 694 to squeeze the block 68, causing the block 68 to descend. At this time, the vibration plate 65 is reset by the second spring 652, and then hits the second filter plate 66, so that some organic silicone oil and impurities attached to the second filter plate 66 can be shaken off to the upper side of the inclined surface of the two blocking blocks 614.

[0041] like Figure 4 As shown, in this embodiment, the cleaning assembly 7 includes an oil storage tank 72, an oil pump 73 and a symmetrically arranged electric valve 2 74. The oil storage tank 72 is filled with the same organic silicone oil as that in the transformer box 1, and the oil chamber in the oil storage tank 72 is left with a cavity. The upper end of the oil storage tank 72 is fixedly mounted with a connecting pipe 2 71 in communication therewith. The upper end of the connecting pipe 2 71 is fixed to and in communication with the connecting pipe 1 64. The upper electric valve 2 74 is provided between the right side plate 63 of the support frame 61 and the vertical pipe 33 to control the communication between the vertical pipe 33 and the support frame 61; The left end of the oil pump 73 is connected to the lower end of the oil storage tank 72 through a connecting pipe; The lower electric valve 2 74 is provided between the oil pump 73 and the vertical pipe 33 to control the communication between the vertical pipe 33 and the oil pump 73; The outer wall of the oil storage tank 72 is installed with a heating plate for heating the silicone oil. The heating plate is used to heat the silicone oil in the oil storage tank 72 to an appropriate temperature, so that the temperature of the silicone oil increases and the viscosity decreases, which is conducive to the precipitation of impurities in the silicone oil, thereby facilitating the cleaning of the impurities.

[0042] The oil storage tank 72, oil pump 73, heating plate and electric valve 2 74 are all existing technologies and will not be described in detail here.

[0043] After the transformer has been running for a period of time, it is necessary to clean the impurities on the surface of the filter plate 1 34 to prevent excessive accumulation of impurities, which may block the vertical pipe 33 and affect the heat dissipation effect of the organic silicone oil. In addition, during the impurity cleaning process, the transformer will not be subjected to a high load state, and the organic silicone oil inside the transformer box 1 will not expand to the position of the upper elbow 31. At this time, the electric valves 1 32 on the upper and lower sides are closed to close the connection between the vertical pipe 33 and the elbow 31. Then, the electric valves 2 74 on the upper and lower sides are opened to connect the support frame 61 with the vertical pipe 33, and the oil pump 73 with the vertical pipe 33. Furthermore, the temperature of the organic silicone oil in the oil storage tank 72 is heated to reduce the viscosity of the organic silicone oil. When the viscosity of the organic silicone oil drops to an appropriate level, the heating is stopped, and then the oil pump 73 is started to transport the heated organic silicone oil into the vertical pipe 33. The organic silicone oil enters the vertical pipe 33 from bottom to top, and then drives the impurities on the surface of the filter plate 1 34 to move into the support frame 61. The organic silicone oil with impurities passes through the filter plate 2 66. Before passing through the filter plate 2 66, the organic silicone oil can drive the fan blade 672 to rotate, thereby driving the scraper to rotate and scrape the surface of the filter plate 2 66, so as to prevent the impurities in the organic silicone oil from accumulating on the surface of the filter plate 2 66 and causing blockage. Furthermore, the organic silicone oil passes through the second filter plate 66 and presses the vibration plate 65, causing it to be limited at the position of the block 68. The filtered organic silicone oil enters the first connecting pipe 64 and then enters the second connecting pipe 71, forming a circulation. This can bring impurities on the surface of the first filter plate 34 into the support frame 61, and the second filter plate 66 will prevent impurities from entering the first connecting pipe 64. Furthermore, after a period of circulation, the impurities are carried away from the filter plate 1 34 , and the oil pump 73 and the upper and lower electric valves 1 32 are closed. At this time, some organic silicone oil will remain in the vertical pipe 33 , and most of the impurities will remain in the support frame 61 . Under the action of gravity, the organic silicone oil in the support frame 61 passes through the filter plate 2 66 and enters the connecting pipe 2 71 until the liquid level of the organic silicone oil in the support frame 61 is level with the filter hole at the bottom of the filter plate 2 66 . Then, the organic silicone oil containing impurities in the support frame 61 can be cleaned. Furthermore, the electric push rod 62 is started to drive the pressing member 621 to move downward in the support frame 61, and then the top plate 6212 pushes the top head 691, so that the sliding rod squeezes the block 68 through the push rod 694, and the limit on the vibration plate 65 is released. The vibration plate 65 is reset by the spring 2 652, and then hits the filter plate 2 66, which can shake some silicone oil and impurities attached to the filter plate 2 66 to the upper side of the inclined surface of the two blocking blocks 614. As the pressing member 621 continues to descend, the wedge block 6211 will press the blocking block 614. The sealing block 614 is squeezed to slide, and the discharge port 613 is opened, so that the organic silicone oil containing impurities falls into the collection frame 611 to complete the collection. The above impurity collection process can greatly reduce the number of manual cleaning of the organic silicone oil in the transformer box 1. When the collection reaches an appropriate level, the collection frame 611 needs to be taken out for cleaning. This cleaning can simultaneously clean the filter screen 2 66, the support frame 61 and the lower pressure piece 621, which can greatly reduce the number of manual cleaning of the filter plate 1 34 and reduce the operating risks of the staff.

[0044] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0045] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0046] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the application concept described herein through the above teachings or technology or knowledge in the relevant field. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present application should be protected by the claims appended hereto.

Claims

1. A high-efficiency heat dissipation large-capacity oil-immersed transformer, comprising a transformer box, characterized in that: Several heat dissipation components are symmetrically arranged on the front and back sides of the transformer box. Fixed brackets are installed on the left and right sides of the transformer box. The right fixing bracket is installed with an oil pillow, and the left fixing bracket is installed with a cooling water tank for auxiliary cooling of the heat dissipation components. Several groups of oil ports communicating with the inner cavity of the transformer box are symmetrically opened on the front and back sides of the transformer box. A filter component for filtering impurities contained in the silicone oil is connected between the oil port and the heat dissipation component. An impurity cleaning component for removing impurities is connected to the left side of the filter component. A cleaning component is connected to the left side of the impurity cleaning component, and the cleaning component is connected to the filter component.

2. The high-efficiency heat dissipation large-capacity oil-immersed transformer according to claim 1, characterized in that: The filter assembly includes a vertical pipe, a symmetrically arranged elbow and an electric valve. The vertical pipe is arranged between the two elbows and is fixed and communicated with the elbows. The upper elbow is connected to the corresponding oil port. A metal filter plate is installed in the vertical pipe. The upper electric valve is installed at the connection between the upper elbow and the vertical pipe, and the lower electric valve is installed at the connection between the lower elbow and the vertical pipe.

3. The high-efficiency heat dissipation large-capacity oil-immersed transformer according to claim 1, characterized in that: The impurity cleaning assembly includes a T-shaped support frame and a blocking mechanism. Matching side panels are installed on both sides of the support frame. Through holes are opened on the surface of the side panels. The blocking mechanism is arranged on the left side of the support frame. A downward pressure piece is slidingly arranged in the vertical frame of the support frame. An electric push rod is installed on the upper end surface of the support frame. The piston rod of the electric push rod passes through the upper end surface of the support frame and is fixed to the downward pressure piece. Partitions are symmetrically fixed in the horizontal frame of the support frame. A feeding port is provided between the two partitions to allow the downward pressure piece to pass through.

4. The high-efficiency heat dissipation large-capacity oil-immersed transformer according to claim 3, characterized in that: The partition divides the horizontal frame inner cavity of the support frame into two parts. The lower inner cavity is installed with a detachable collection frame, and the upper inner cavity is symmetrically slidably installed with a trapezoidal blocking block. The inclined surfaces of the two blocking blocks are opposite to each other, and the lower pressing piece is adapted to the blocking block. The lower pressing piece can push the blocking blocks on both sides to move, and a spring five is fixedly connected between the outer side surface of the blocking block and the inner wall of the support frame.

5. The high-efficiency heat dissipation large-capacity oil-immersed transformer according to claim 3, characterized in that: The blocking mechanism includes a horizontally placed connecting tube 1, a hollow support shaft, a circular vibration plate and a metal filter plate 2. The right end of the connecting tube 1 is fixed to the left plate and communicates with the through hole. The filter plate 2 is installed in the through hole of the left plate. The vibration plate is slidably arranged in the connecting tube 1. A cover is installed at the left end of the connecting tube 1. The left end of the support shaft is rotatably matched with the cover. The right end of the support shaft passes through the vibration plate and the filter plate 2. The filter plate 2 is fixed to the support shaft. The vibration plate is slidably matched with the support shaft. A spring 2 is fixedly connected between the vibration plate and the cover and is sheathed on the circumferential surface of the support shaft.

6. The high-efficiency heat dissipation large-capacity oil-immersed transformer according to claim 5, characterized in that: The support shaft extends beyond the circumference of the filter plate 2 and is provided with a scraper for cleaning the surface of the filter plate 2 and a fan blade for driving the support shaft to rotate. A locking assembly for limiting the vibration plate is provided in the support shaft.

7. The high-efficiency heat dissipation large-capacity oil-immersed transformer according to claim 6, characterized in that: The locking assembly includes a sliding shaft and a card block. The left end of the sliding shaft is fixedly provided with a circular support block that slides in the inner cavity of the support shaft. A push rod is fixedly provided on the left side of the support block. A head is fixedly provided on the right end of the sliding shaft. A through groove is provided on the circumferential surface of the support shaft. The card block is slidably provided in the through groove. The lower end surface of the card block is fixedly connected to the inner wall of the support shaft with a spring three. A trapezoidal card groove two is provided on the right side of the card block. The card groove two is adapted to the push rod, and the push rod slides in the card groove two. A sleeve is fixedly provided in the inner cavity of the support shaft. The sliding shaft passes through the sleeve and slides together. An annular card groove one is provided on the inner circumferential surface of the vibration plate. The annular card groove one is adapted to the card block.

8. The high-efficiency heat dissipation large-capacity oil-immersed transformer according to claim 5, characterized in that: The cleaning component includes an oil storage tank, an oil pump and two symmetrically arranged electric valves. A cavity is left in the oil chamber of the oil storage tank. A connecting pipe two is fixedly installed on the upper end of the oil storage tank. The upper end of the connecting pipe two is fixed to and connected with the connecting pipe one. The upper electric valve two is arranged between the right side plate of the support frame and the vertical pipeline. The left end of the oil pump is connected to the lower end of the oil storage tank through a connecting pipe. The lower electric valve two is arranged between the oil pump and the vertical pipeline. A heating plate for heating the silicone oil is installed on the outer wall of the oil storage tank.

9. The high-efficiency heat dissipation large-capacity oil-immersed transformer according to claim 2, characterized in that: The heat dissipation assembly includes a heat dissipation oil pipe and a plurality of heat dissipation fins which are symmetrically arranged in the upper and lower parts. The heat dissipation fins are hollow and fixedly arranged between the two heat dissipation oil pipes and communicate with the two heat dissipation oil pipes. One end of the upper heat dissipation oil pipe is fixed and communicated with one end of the bent pipe below. The lower heat dissipation oil pipe is fixed to the outer end face of the corresponding oil port below and is communicated with the oil port.

10. The high-efficiency heat dissipation large-capacity oil-immersed transformer according to claim 9, characterized in that: A cooling coil is fixedly arranged on the outer side of the heat sink, and the cooling coil is connected to the cooling water tank.

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