A high-efficiency heat-dissipation type large-capacity oil-immersed transformer

Abstract

The application discloses a high-efficiency 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 and back sides of the transformer box body, fixing frames are installed on the left and right sides of the transformer box body, an oil pillow is installed on the right fixing frame, a cooling water tank for assisting heat dissipation of the heat dissipation assemblies is installed on the left fixing frame, a plurality of groups of oil ports are symmetrically arranged on the front and back sides of the transformer box body and communicate with the inner cavity of the transformer box body, filter assemblies are connected between the oil ports and the heat dissipation assemblies, 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 with the filter assembly. The application can automatically clean the filter plate I, remove impurities from the heat dissipation pipeline, and avoid that the oil ports of the heat dissipation fins are blocked by the impurities to reduce the heat dissipation effect.

Description

TECHNICAL FIELD

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

[0002] The transformer plays a role in voltage transformation in the process of power transmission in the power grid, ensuring that power can be normally supplied. In the process of using the transformer, the oil-immersed transformer cools and insulates the transformer by injecting oil, ensuring that the transformer can work normally. Due to economic and technical maturity factors in ordinary environments, the oil used in the oil-immersed transformer is mineral oil. In some areas with strict fire prevention and environmental protection requirements, mineral oil needs to be replaced with silicone oil. The electrical insulation, thermal stability, flame retardancy, environmental protection, and low-temperature fluidity of silicone oil are all better than those of mineral oil. In the operation process of the transformer, some impurities will inevitably be generated. These impurities mainly include metal particle impurities and fiber impurities. The metal particle impurities mainly come from the wear and tear and electromagnetic vibration shedding of the winding or the iron core inside the transformer, and the fiber impurities mainly include the aging of the sealing material inside the transformer or the damage of the filter material. After the transformer has been operated for a period of time, the impurities in the heat dissipation oil need to be filtered and cleaned to avoid clogging the pipeline and reducing the heat dissipation effect of the oil, which affects the normal operation of the transformer.

[0003] After searching, the patent document with the publication number CN114288736B discloses an oil-immersed transformer oil liquid filtering assembly, which comprises a transformer body. A filtering mechanism is installed on the transformer body. A control mechanism is installed on the filtering mechanism. A locking mechanism is installed on the filtering mechanism. A sliding mechanism is installed on the filtering mechanism. A limiting mechanism is installed on the sliding mechanism. A reset mechanism is installed on the filtering mechanism. The locking mechanism makes the filtering mechanism firmly installed. The cooperation of the filtering mechanism and the control mechanism facilitates the extraction and filtration of the sedimentary impurities inside the bottom of the transformer body, ensuring the purity of the oil liquid and reducing the damage to the transformer body. The cooperation of the sliding mechanism and the limiting mechanism facilitates the filtering mechanism not to be clogged, which facilitates the better filtration of the oil liquid. The reset mechanism facilitates the good reset of the sliding mechanism and the scraping and cleaning of the impurities inside the filtering mechanism.

[0004] After the above-mentioned device filters the oil liquid, the cover plate and the filter screen need to be taken out before the impurities can be cleaned. This process needs manual intervention multiple times, which is troublesome. When the filter screen is taken out and cleaned, the transformer is usually in a working state (electrically running). Each time the filter screen is taken out and cleaned, the worker will be at risk. SUMMARY

[0005] The application aims to provide a high-efficiency heat dissipation type large-capacity oil-immersed transformer, which can automatically clean the filter plate I, remove impurities from the heat dissipation pipeline, avoid impurities blocking the oil port of the heat dissipation fin to reduce the heat dissipation effect, and improve the heat dissipation effect of the heat dissipation fin on the organic silicon oil through the cooling coil.

[0006] The application adopts the following technical scheme:

[0007] The high-efficiency heat dissipation type large-capacity oil-immersed transformer comprises a transformer box body, a plurality of heat dissipation assemblies are symmetrically arranged on the front and rear sides of the transformer box body, a fixing frame is installed on each of the left and right sides of the transformer box body, an oil pillow is installed on the right fixing frame, a cooling water tank for assisting the heat dissipation assemblies in cooling is installed on the left fixing frame, a plurality of groups of oil ports are symmetrically arranged on the front and rear sides of the transformer box body and communicate with the inner cavity of the transformer box body, a filter assembly for filtering impurities contained in the organic silicon oil is connected between the oil ports and the heat dissipation assemblies, an impurity cleaning assembly for cleaning the 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 with the filter assembly.

[0008] Optionally, the filter assembly comprises a vertical pipeline, symmetrically arranged elbow pipes and electric valves I, the vertical pipeline is arranged between the two elbow pipes and fixedly connected with the elbow pipes and communicates with the elbow pipes, the upper elbow pipe communicates with the corresponding oil port, a metal filter plate I is installed in the vertical pipeline, the upper electric valve I is installed at the connection between the upper elbow pipe and the vertical pipeline, and the lower electric valve I is installed at the connection between the lower elbow pipe and the vertical pipeline.

[0009] Optionally, the impurity cleaning assembly comprises a T-shaped support frame and a blocking mechanism, the two sides of the support frame are both installed with adaptively matched side plates, the surface of the side plate is provided with a through hole, the blocking mechanism is arranged on the left side of the support frame, a pressing piece is slidably arranged in the vertical frame body 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 penetrates through the upper end face of the support frame and is fixedly connected with the pressing piece, the horizontal frame body of the support frame is symmetrically fixedly provided with baffles, and a discharging port through which the pressing piece passes is arranged between the two baffles.

[0010] Optionally, the baffle divides the inner cavity of the horizontal frame body of the support frame into two parts, a detachable collecting frame is installed in the lower half inner cavity, and trapezoidal blocking blocks are symmetrically and slidably installed in the upper half inner cavity, the inclined surfaces of the two blocking blocks are opposite to each other, the pressing piece is adaptively matched with the blocking blocks, the pressing piece can drive the two blocking blocks to move, and springs five are fixedly connected between the outer side surface of the blocking blocks and the inner wall of the support frame.

[0011] Optionally, the blocking mechanism comprises a transverse connecting pipe I, a hollow support shaft, a circular vibrating plate and a metal filter plate II, the right end of the connecting pipe I is fixed to the left side plate and communicates with the through hole, the filter plate II is installed in the through hole of the left side plate, the vibrating plate is slidingly arranged in the connecting pipe I, the left end of the connecting pipe I is provided with a cover, the left end of the support shaft is rotationally connected with the cover, the right end of the support shaft penetrates through the vibrating plate and the filter plate II, the filter plate II is fixed to the support shaft, the vibrating plate is slidingly connected with the support shaft, and the spring II is fixedly connected between the vibrating plate and the cover and surrounds the circumferential surface of the support shaft.

[0012] Optionally, the circumferential surface of the support shaft beyond the filter plate II is rotationally provided with a scraping member for cleaning the surface of the filter plate II and a fan member for driving the support shaft to rotate, and the support shaft is provided with a locking assembly for limiting the vibrating plate.

[0013] Optionally, the locking assembly comprises a sliding shaft and a clamping block, the left end of the sliding shaft is fixedly provided with a circular supporting block sliding in the inner cavity of the support shaft, the left side surface of the supporting block is fixedly provided with a push rod, the right end of the sliding shaft is fixedly provided with a top head, the circumferential surface of the support shaft is provided with a through groove, the clamping block is slidingly arranged in the through groove, the lower end surface of the clamping block is fixedly connected with the spring III and the inner wall of the support shaft, the right side surface of the clamping block is provided with a trapezoidal clamping groove II, the clamping groove II is matched with the push rod, the push rod is slidingly arranged in the clamping groove II, the inner cavity of the support shaft is fixedly provided with a sleeve, the sliding shaft penetrates through the sleeve and is slidingly connected, the inner circumferential surface of the vibrating plate is provided with an annular clamping groove I, and the annular clamping groove I is matched with the clamping block.

[0014] Optionally, the cleaning assembly comprises an oil storage tank, an oil pump and two symmetrical electric valves II, the oil cavity in the oil storage tank is provided with a cavity, the upper end of the oil storage tank is fixedly provided with a connecting pipe II communicated with the oil storage tank, the upper end of the connecting pipe II is fixed to the connecting pipe I and communicated with the connecting pipe I, the upper electric valve II is arranged between the right side plate of the support frame and the vertical pipeline, the left end of the oil pump is communicated with the lower end of the oil storage tank through a connecting pipe, and the lower electric valve II is arranged between the oil pump and the vertical pipeline, and the outer wall of the oil storage tank is provided with heating fins for heating the silicone oil.

[0015] Optionally, the heat dissipation assembly comprises two symmetrical heat dissipation oil pipes and a plurality of heat dissipation fins, the heat dissipation fins are hollow, the heat dissipation fins are fixedly arranged between the two heat dissipation oil pipes and communicated with the two heat dissipation oil pipes, one end of the upper heat dissipation oil pipe is fixed to one end of the lower bend and communicated with the one end of the lower bend, and the lower heat dissipation oil pipe is fixed to the outer end surface of the corresponding oil port on the lower side and communicated with the oil port.

[0016] Optionally, the outer side surface of the heat dissipation fin is fixedly provided with a cooling coil pipe, and the cooling coil pipe is communicated with a cooling water tank.

[0017] In summary, the present application has the following advantages:

[0018] 1. In this invention, a filter assembly is used to filter and clean the impurities contained in the silicone oil inside the transformer tank, so as to avoid the impurities clogging the pipes and reducing the heat dissipation efficiency of the silicone oil, thereby affecting the normal operation of the transformer. Then, the cleaning assembly and the impurity cleaning assembly are used together to collect and process the impurities filtered in the filter assembly. The whole process is automated, reducing manual intervention and effectively ensuring the heat dissipation effect of the silicone oil.

[0019] 2. In this invention, by releasing the locking component from the vibrating plate, the vibrating plate can shake off some silicone oil and impurities attached to the filter plate two onto the inclined surface of the two sealing blocks. As the pressing component continues to descend, the wedge block will squeeze the sealing block, thereby causing the sealing block to slide and open the discharge port, allowing the silicone oil containing impurities to fall into the collection frame for collection. In addition, during the descent of the pressing component, the wedge block can scrape the inclined surface of the sealing block, improving the impurity removal effect.

[0020] 3. In this invention, when the impurities in the collection box reach an appropriate level, the collection box needs to be removed and the impurities cleaned. At this time, the filter screen 2, the support frame and the pressing part can be cleaned at the same time. In addition, the collection box can collect the impurities after the filter plate 1 has been automatically cleaned multiple times, reducing the number of times the staff cleans the silicone oil, thereby reducing the number of times the staff encounters risks during operation.

[0021] 4. In this invention, the cooling water in the cooling water tank is cooled by a cooling mechanism, which improves the cooling effect of the cooling coil on the heat sink, enhances the heat dissipation efficiency of the heat sink on the silicone oil, and ensures the stable operation of the transformer. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the heat dissipation component of the present invention. Figure 1 ;

[0024] Figure 3 This is a partial structural schematic diagram of the present invention;

[0025] Figure 4 This is a schematic diagram of the cleaning assembly and the filtering assembly of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the impurity cleaning component of the present invention. Figure 1 ;

[0027] Figure 6 This is a schematic diagram of the structure of the impurity cleaning component of the present invention. Figure 2 ;

[0028] Figure 7 Structure diagram of the blocking assembly of the present application;

[0029] Figure 8 Structure diagram of the locking assembly of the present application;

[0030] Figure 9 Sectional view of the impurity cleaning assembly of the present application Figure 1 ;

[0031] Figure 10 Detail enlarged view of A in the present application Figure 9 ;

[0032] Figure 11 Detail enlarged view of B in the present application Figure 9 ;

[0033] Figure 12 Detail enlarged view of C in the present application Figure 9 ;

[0034] Figure 13 Sectional view of the impurity cleaning assembly of the present application Figure 2 ;

[0035] Figure 14 Detail enlarged view of D in the present application Figure 11 .

[0036] In the figure, 1, transformer tank; 2, heat dissipation assembly; 3, filtering assembly; 4, oil pillow; 5, cooling water tank; 6, impurity cleaning assembly; 7, cleaning assembly; 11, oil port; 12, fixing frame; 21, heat dissipation oil pipe; 22, heat dissipation fin; 23, cooling coil; 31, elbow; 32, electric valve one; 33, vertical pipeline; 34, filtering plate one; 61, support frame; 611, collecting frame; 612, partition plate; 613, discharging port; 614, plugging block; 615, spring five; 62, electric push rod; 621, pressing piece; 6211, wedge block; 6212, top plate; 622, groove; 623, spring one; 624, pressing plate; 63, side plate; 631, through hole; 632, blocking plate; 64, connecting pipe one; 641, cover; 642, sliding groove; 65, vibrating plate; 651, sliding block; 652, spring two; 653, annular clamping groove one; 66, filtering plate two; 67, support shaft; 671, scraping piece; 672, fan piece; 673, through groove; 674, sleeve; 68, clamping block; 681, clamping groove two; 682, spring three; 69, sliding shaft; 691, top head; 692, spring four; 693, support block; 694, push rod; 71, connecting pipe two; 72, oil storage tank; 73, oil pump; 74, electric valve two. DETAILED DESCRIPTION

[0037] The principles and spirits of the present application will be explained in detail below with reference to several representative embodiments of the present application.

[0038] Please refer to Figures 1-14 , the present application will be described in detail below with reference to the accompanying drawings and examples:

[0039] As Figures 1-3 shown, a high-efficiency heat dissipation type large-capacity oil-immersed transformer includes a transformer tank 1, a plurality of heat dissipation assemblies 2 are symmetrically arranged on the front and rear sides of the transformer tank 1, the heat dissipation assemblies 2 are used to dissipate heat from low-viscosity silicone oil in the transformer tank 1, a fixing frame 12 is fixedly installed on the left and right sides of the transformer tank 1 through bolts, an oil pillow 4 is installed on the right fixing frame 12, and a cooling water tank 5 is installed on the left fixing frame 12, the cooling water tank 5 is used to assist in cooling the heat dissipation assemblies 2 and improve the cooling effect of the silicone oil.

[0040] A plurality of oil ports 11 are symmetrically arranged on the front and rear sides of the transformer tank 1 and communicate with the inner cavity of the transformer tank 1, a filter assembly 3 is connected between the oil ports 11 and the heat dissipation assemblies 2, the filter assembly 3 is used to filter and clean impurities contained in the silicone oil in the transformer tank 1, so as to avoid the impurities from blocking the pipeline and reducing the heat dissipation effect of the heat dissipation assemblies 2, thereby affecting the normal operation of the transformer.

[0041] The left side of the filter assembly 3 is connected with an impurity cleaning assembly 6, the left side of the impurity cleaning assembly 6 is connected with a cleaning assembly 7, the cleaning assembly 7 is also connected with the filter assembly 3, and the impurities filtered by the filter assembly 3 are collected and treated through the cooperation of the cleaning assembly 7 and the impurity cleaning assembly 6.

[0042] The above-mentioned oil pillow 4 is a prior art, the oil pillow 4 communicates with the inner cavity of the transformer tank 1 through an external connecting pipe, when the internal silicone oil expands or shrinks due to load changes or environmental temperature fluctuations, the oil pillow 4 can accommodate the expansion or shrinkage of the volume of the silicone oil, so as to ensure that the oil in the inner cavity of the transformer tank 1 can ensure the normal operation of the transformer, and avoid pressure abnormalities or vacuum phenomena caused by rapid changes in oil level.

[0043] The above-mentioned impurities mainly include metal particle impurities and fiber impurities, the metal particle impurities are mainly derived from the wear and tear of the winding or the iron core in the transformer and the electromagnetic vibration shedding, and the fiber impurities mainly include the aging of the sealing material inside the transformer or the damage of the filter material.

[0044] As Figures 3-4As shown, in this embodiment, the filtering assembly 3 includes a vertical pipe 33 and two sets of symmetrically arranged elbow pipes 31 and electric valves 32, the vertical pipe 33 is arranged between the two elbow pipes 31, and the two ends of the vertical pipe 33 are fixedly connected with the upper and lower elbow pipes 31 respectively, one end of the upper elbow pipe 31 is fixed to the outer end surface of the corresponding oil port 11 on the upper side and is in communication with the oil port 11, and a metal filter plate 34 for filtering the silicone oil in the transformer tank 1 is fixedly installed at the middle part of the vertical pipe 33, and a plurality of filter holes are formed on the surface of the filter plate 34;

[0045] The upper electric valve 32 is fixed at the connection between the upper elbow pipe 31 and the vertical pipe 33 to close the lumen at the connection, and the lower electric valve 32 is fixed at the connection between the lower elbow pipe 31 and the vertical pipe 33 to close the lumen at the connection;

[0046] When the upper and lower electric valves 32 are in the closed state, the impurities on the surface of the filter plate 34 can be cleaned at this time.

[0047] As shown in the drawings, Figures 1-3 In this embodiment, the heat dissipation assembly 2 includes a plurality of heat dissipation oil pipes 21 and a plurality of heat dissipation fins 22 arranged symmetrically on the upper and lower sides, one end of the heat dissipation oil pipe 21 is in communication with the outside, and the other end is in a closed state, and the heat dissipation fin 22 is hollow;

[0048] The heat dissipation fin 22 is fixedly arranged between the two heat dissipation oil pipes 21 and is in communication with the two heat dissipation oil pipes 21;

[0049] One end of the upper heat dissipation oil pipe 21 is fixedly connected with one end of the lower elbow pipe 31 and is in communication, and the lower heat dissipation oil pipe 21 is fixed to the outer end surface of the corresponding oil port 11 on the lower side and is in communication with the oil port 11.

[0050] Specifically, when the transformer is running in a high load state, the internal silicone oil is heated and expanded, enters the upper elbow pipe 31 through the upper oil port 11, then enters the upper heat dissipation oil pipe 21 through the vertical pipe 33 and the lower elbow pipe 31, when passing through the vertical pipe 33, the impurities contained in the silicone oil are blocked by the filter plate 34, the filtered silicone oil enters the heat dissipation fin 22 for heat dissipation, and the heat-dissipated silicone oil enters the transformer tank 1 again through the lower heat dissipation oil pipe 21 to form a natural circulation heat dissipation.

[0051] As shown in the drawings, Figures 1-3As shown, in this embodiment, the outer side of the fin 22 is fixedly provided with a cooling coil 23, the cooling coil 23 is communicated with the cooling water tank 5, and the inside of the cooling water tank 5 is provided with a cooling mechanism, the cooling mechanism is used to cool the cooling water in the cooling water tank 5, and the cooling effect of the cooling coil 23 on the fin 22 is improved. The cooling water tank 5 and the cooling mechanism are both prior art, and will not be described in detail here.

[0052] As shown in the figure, Figures 5-14 As shown, in this embodiment, the impurity cleaning assembly 6 includes a T-shaped support frame 61 and a blocking mechanism, and the two sides of the support frame 61 are symmetrically and fixedly provided with matching side plates 63, and the surface of the side plate 63 is provided with a through hole 631, and the blocking mechanism is arranged on the left side of the support frame 61.

[0053] The vertical frame body of the support frame 61 is slidably provided with a pressing piece 621, and the horizontal frame body of the support frame 61 is symmetrically and fixedly provided with a partition plate 612, and a discharging port 613 is arranged between the two partition plates 612, and the pressing piece 621 can pass through the discharging port 613.

[0054] The horizontal frame body of the support frame 61 is divided into two parts by the partition plate 612, the lower half of the inner cavity is provided with a detachable collection frame 611, and the upper half of the inner cavity is symmetrically and slidably provided with a trapezoidal blocking block 614, the inclined surfaces of the two blocking blocks 614 are opposite, and the 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 two blocking blocks 614 are blocked by the elastic force of the spring five 615.

[0055] Specifically, the two side blocking blocks 614 are driven to move outward by the descending of the pressing piece 621, so that the discharging port 613 is opened, the pressing piece 621 drives the organic silicon oil containing impurities to fall into the collection frame 611, and after the pressing piece 621 is reset, the spring five 615 drives the blocking block 614 to reset.

[0056] As shown in the figure, Figure 6 As shown, in this embodiment, the collection frame 611 is used to collect the filtered impurities and part of the organic silicon oil, and after the collection frame 611 is installed into the support frame 61, it is fixed with the support frame 61 by bolts to avoid accidental falling, and then the connection is sealed.

[0057] As shown in the figure, Figure 6 As shown, in this embodiment, the upper end surface of the support frame 61 is fixedly provided with an electric push rod 62, the piston rod of the electric push rod 62 penetrates the upper end surface of the support frame 61 and is fixed with the pressing piece 621, and the electric push rod 62 drives the pressing piece 621 to move up and down in the support frame 61.

[0058] As shown in the figure, Figures 13-14As shown, in this embodiment, the lower pressing piece 621 is composed of a transverse plate and symmetrically arranged vertical rod, a top plate 6212 is fixedly arranged between the two vertical rods close to the lower position, a pressing plate 624 is arranged above the top plate 6212, the pressing plate 624 slides between the two vertical rods, and the pressing plate 624 also slides in the vertical frame of the support frame 61;

[0059] The lower surface of the transverse plate is provided with a groove 622, and springs 623 are symmetrically fixedly connected between the bottom surface of the groove 622 and the pressing plate 624;

[0060] The lower part of the vertical rod is fixedly provided with a wedge-shaped block 6211 matched with the blocking block 614, the wedge-shaped block 6211 is driven to extrude the blocking block 614 by the descent of the lower pressing piece 621, so that the blocking block 614 slides, and in the extrusion process, the wedge-shaped block 6211 can scrape off the impurities deposited on the inclined surface of the blocking block 614, improving the collection effect of impurities.

[0061] As shown in the figure, Figure 9 In this embodiment, the inner wall of the side plate 63 is fixedly provided with a blocking plate 632, and the blocking plates 632 on both sides can cooperate with the top plate 6212 and the pressing plate 624 to block the vertical frame of the support frame 61, so as to avoid that the organic silicone oil stays in the support frame 61 after entering the support frame 61.

[0062] Specifically, when the lower pressing piece 621 descends, the blocking plates 632 on both sides will block the pressing plate 624, so that the pressing plate 624 stays in place.

[0063] As shown in the figure, Figures 7-12 In this embodiment, the blocking mechanism includes a transverse connecting pipe 64, a hollow support shaft 67, a circular vibrating plate 65 and a metal filter plate 66, and the filter plate 66 and the filter plate 34 can filter impurities;

[0064] The right end of the connecting pipe 64 is fixed with the left side plate 63 of the support frame 61 and communicates with the through hole 631, the filter plate 66 is fixedly arranged in the through hole 631 of the left side plate 63, the vibrating plate 65 is slidingly arranged in the connecting pipe 64, and the left end of the connecting pipe 64 is fixedly provided with a cover 641;

[0065] The left end of the support shaft 67 is rotationally connected with the cover 641, the right end of the support shaft 67 penetrates the vibrating plate 65 and the filter plate 66, the filter plate 66 is fixedly connected with the support shaft 67, and the vibrating plate 65 is slidingly connected with the support shaft 67;

[0066] The inner wall of the connecting pipe 64 is symmetrically provided with a sliding groove 642, and the circumferential surface of the vibrating plate 65 is symmetrically and fixedly provided with a sliding block 651 sliding in the sliding groove 642, so that the vibrating plate 65 can be prevented from rotating on the supporting shaft 67, and a spring 652 is fixedly connected between the vibrating plate 65 and the cover 641 and surrounds the circumferential surface of the supporting shaft 67.

[0067] As shown in Figures 7-12 the embodiment, the supporting shaft 67 is rotatably provided with a scraping piece 671 and a fan piece 672 on the circumferential surface of the filter plate 66, the scraping piece 671 comprises a circular ring and symmetrically arranged scraping plates, the scraping plates are in contact with the right surface of the filter plate 66, the fan piece 672 is fixed to the circular ring, and the fan piece 672 is driven to rotate by the flow of the silicone oil, so as to drive the scraping plates to clean the surface of the filter plate 66, thereby preventing impurities in the silicone oil from being accumulated on the surface of the filter plate 66 to cause blockage.

[0068] As shown in Figures 7-12 the embodiment, the supporting shaft 67 is provided with a locking assembly, the position of the vibrating plate 65 is limited by the locking assembly, when the vibrating plate 65 is released from the limitation, the vibrating plate 65 impacts the filter plate 66 by the elasticity of the spring 652, and before the impact, the silicone oil no longer drives the fan piece 672 to rotate, at this time, the impact force can shake some silicone oil and impurities attached to the filter plate 66 to fall above the inclined surface of the two blocking blocks 614.

[0069] As shown in Figures 8-12 the embodiment, the locking assembly comprises a sliding shaft 69 and a clamping block 68, the left end of the sliding shaft 69 is fixedly provided with a circular supporting block 693 sliding in the inner cavity of the supporting shaft 67, the left side surface of the supporting block 693 is fixedly provided with a push rod 694, and the right end of the sliding shaft 69 is fixedly provided with a top head 691.

[0070] A through groove 673 is formed in the circumferential surface of the supporting shaft 67, the clamping block 68 is slidingly arranged in the through groove 673, the lower end surface of the clamping block 68 is fixedly connected with a spring 682, the right side surface of the clamping block 68 is provided with a trapezoidal clamping groove 681, the clamping groove 681 is matched with the push rod 694, and the push rod 694 slides in the clamping groove 681.

[0071] Specifically, when the sliding shaft 69 moves to the left, the push rod 694 slides in the clamping groove 681, the clamping block 68 is extruded, the clamping block 68 is lowered, and is retracted into the through groove 673, at this time, the spring 682 is compressed.

[0072] As shown in Figures 11-12As shown, in the embodiment, the inner cavity of the support shaft 67 is fixedly provided with a sleeve 674, the sliding shaft 69 penetrates through the sleeve 674 and is in sliding fit, and the sleeve 674 is used to ensure the sliding stability of the sliding shaft 69.

[0073] The inner circumferential surface of the inner ring of the vibrating plate 65 is provided with an annular clamping groove one 653, which is matched with the clamping block 68.

[0074] Specifically, after the organic silicon oil enters the support frame 61 and penetrates through the filter plate two 66, the vibrating plate 65 is pushed to slide on the circumferential surface of the support shaft 67. After the vibrating plate 65 moves to the position of the clamping block 68, the clamping block 68 is extruded to retract into the through groove 673 until the clamping block 68 is reset in the annular clamping groove one 653. At this time, the position of the vibrating plate 65 is fixed. After the surface of the filter plate one 34 is cleaned, the descending of the lower pressing piece 621 drives the top plate 6212 to extrude the top head 691 at the right end of the support shaft 67, so that the sliding shaft 69 moves towards the clamping block 68. The movement of the sliding shaft 69 extrudes the clamping block 68 through the push rod 694, so that the clamping block 68 descends. At this time, the vibrating plate 65 is reset through the spring two 652, and then the filter plate two 66 is impacted, so that some organic silicon oil and impurities attached to the filter plate two 66 are shaken off to the upper side of the inclined surface of the two blocking blocks 614.

[0075] As shown in the figure, Figure 4 In the embodiment, the cleaning assembly 7 includes an oil storage tank 72, an oil pump 73 and symmetrically arranged electric valves two 74. The oil storage tank 72 is filled with the same organic silicon oil as in the transformer tank 1, and the oil cavity in the oil storage tank 72 is left with a cavity. The upper end of the oil storage tank 72 is fixedly provided with a connecting pipe two 71 in communication therewith. The upper end of the connecting pipe two 71 is fixedly connected with the connecting pipe one 64 and is in communication therewith.

[0076] The upper electric valve two 74 is arranged between the right side plate 63 of the support frame 61 and the vertical pipeline 33, and is used to control the communication between the vertical pipeline 33 and the support frame 61.

[0077] The left end of the oil pump 73 is communicated with the lower end of the oil storage tank 72 through a connecting pipe.

[0078] The lower electric valve two 74 is arranged between the oil pump 73 and the vertical pipeline 33, and is used to control the communication between the vertical pipeline 33 and the oil pump 73.

[0079] The outer wall of the oil storage tank 72 is provided with heating fins for heating the organic silicon oil. The heating fins are used to heat the organic silicon oil in the oil storage tank 72 to an appropriate temperature, so that the temperature of the organic silicon oil rises and the viscosity decreases, which is conducive to the precipitation of impurities in the organic silicon oil, thereby facilitating the cleaning of the impurities.

[0080] The oil tank 72, the oil pump 73, the heating sheet and the electric valve two 74 are all prior art, and will not be described in detail here.

[0081] When the transformer runs for a period of time, the impurities on the surface of the filter plate one 34 need to be cleaned to avoid the vertical pipeline 33 being blocked due to too much impurities, affecting the heat dissipation effect of the silicone oil. During the process of cleaning the impurities, the transformer will not be in a high load state, and the silicone oil in the transformer box 1 will not expand to the position of the elbow pipe 31. At this time, the electric valve one 32 on the upper and lower sides is closed, the connection position of the vertical pipeline 33 and the elbow pipe 31 is in a closed state, and then the electric valve two 74 on the upper and lower sides is opened, so that the support frame 61 is in communication with the vertical pipeline 33, and the oil pump 73 is in communication with the vertical pipeline 33;

[0082] Further, the temperature of the silicone oil in the heating oil tank 72 is raised to reduce the viscosity of the silicone oil. After the viscosity of the silicone oil is reduced to an appropriate degree, heating is stopped, and then the oil pump 73 is started to deliver the heated silicone oil into the vertical pipeline 33. The silicone oil enters the vertical pipeline 33 from bottom to top, and then drives the impurities on the surface of the filter plate one 34 to move into the support frame 61. The silicone oil with impurities penetrates through the filter plate two 66. Before the silicone oil penetrates through the filter plate two 66, the fan blade 672 can be driven to rotate, so as to drive the scraper to rotate and scrape the surface of the filter plate two 66, avoiding the impurities in the silicone oil from being accumulated on the surface of the filter plate two 66 to cause blockage.

[0083] Further, after the silicone oil penetrates through the filter plate two 66, the silicone oil extrudes the vibration plate 65, so that the vibration plate 65 is limited at the position of the clamping block 68. The filtered silicone oil enters the connecting pipe one 64, and then enters the connecting pipe two 71, forming a circulation. In this way, the impurities on the surface of the filter plate one 34 can be brought into the support frame 61, and the filter plate two 66 can block the impurities from entering the connecting pipe one 64;

[0084] Further, after a period of circulation, the impurities are brought away from the filter plate one 34, the oil pump 73 and the electric valve one 32 on the upper and lower sides are closed, and some silicone oil is left in the vertical pipeline 33, and most of the impurities are left in the support frame 61. Under the action of gravity, the silicone oil in the support frame 61 penetrates through the filter plate two 66 and enters the connecting pipe two 71, until the liquid level of the silicone oil in the support frame 61 is flush with the filter hole at the lowermost part of the filter plate two 66. Then, the silicone oil containing impurities in the support frame 61 can be cleaned.

[0085] Further, the electric push rod 62 is started, the lower pressing piece 621 is driven to move downwards in the support frame 61, then the top plate 6212 pushes the top head 691, the sliding rod is extruded to the clamping block 68 through the push rod 694, the limiting of the vibrating plate 65 is released, the vibrating plate 65 is reset through the spring two 652, then the filter plate two 66 is impacted, some organic silicon oil and impurities attached to the filter plate two 66 can be shaken off to the top of the inclined surface of the two blocking blocks 614, with the continuous descending of the lower pressing piece 621, the wedge-shaped block 6211 extrudes the blocking block 614, so that the blocking block 614 slides, the discharge port 613 is opened, the organic silicon oil containing impurities falls into the collecting frame 611, and the collecting is completed. The above-mentioned impurity collecting process can greatly reduce the number of times of manual cleaning of the organic silicon oil in the transformer tank 1. When the collecting frame 611 is collected to an appropriate degree, the collecting frame 611 needs to be taken out for cleaning. This time, the filter screen two 66, the support frame 61 and the lower pressing piece 621 can be cleaned synchronously, so that the number of times of manual cleaning of the filter plate one 34 can be greatly reduced, and the operation risk of the staff can be reduced.

[0086] As used in the specification and claims, certain terminology is used to describe certain components. Those of ordinary skill in the art will understand that different manufacturers can refer to the same component by different names. The specification and claims should not be controlled based on the nomenclature used but based on the functionality of the component. As used throughout this specification and in the claims, "comprising" is intended to mean "including but not limited to." "Consisting essentially of" means that the composition or process can include additional components, so long as the additional components do not materially alter the basic and novel characteristics of the described compositions or processes. "Consisting of" means an exclusive composition or process consisting only of the listed components.

[0087] It should be noted that the terms "comprising," "including," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process or product that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process or composition. Without further limitation, an element preceded by "comprising" does not exclude additional identical elements that the process or composition including the referenced element can also include.

[0088] The above description shows and describes several preferred embodiments of the present application, but as previously discussed, it is understood that the present application is not limited to the forms disclosed herein, should not be considered as excluding other embodiments, and can be used in various other combinations, modifications and environments, and can be modified by the above teachings or related art or knowledge in the field. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the claims of the present application.

Claims

1. A high-efficiency heat-dissipation type large-capacity oil-immersed transformer comprising a transformer tank, characterized by: The front and rear sides of the transformer box are symmetrically provided with a plurality of heat dissipation assemblies, the left and right sides of the transformer box are both provided with fixing frames, the right fixing frame is provided with an oil pillow, the left fixing frame is provided with a cooling water tank for assisting the heat dissipation assemblies in cooling, the front and rear sides of the transformer box are symmetrically provided with a plurality of groups of oil ports communicated with the inner cavity of the transformer box, the oil ports and the heat dissipation assemblies are connected with filter assemblies for filtering impurities contained in the silicone oil, the left side of the filter assemblies is connected with impurity cleaning assemblies for cleaning the impurities, the left side of the impurity cleaning assemblies is connected with cleaning assemblies, and the cleaning assemblies are connected with the filter assemblies; The filter assembly comprises vertical pipelines, symmetrically arranged bend pipes and electric valves one, the vertical pipelines are arranged between the two bend pipes and fixedly connected with the bend pipes and communicated with the bend pipes, the upper bend pipe is communicated with the corresponding oil port, metal filter plates one are arranged in the vertical pipelines, the electric valves one are arranged at the connection positions of the upper bend pipes and the vertical pipelines, and the electric valves one are arranged at the connection positions of the lower bend pipes and the vertical pipelines; The impurity cleaning assembly comprises a T-shaped support frame and a blocking mechanism, the two sides of the support frame are both provided with matching side plates, the surface of the side plate is provided with a through hole, the blocking mechanism is arranged on the left side of the support frame, a pressing piece is slidably arranged in the vertical frame body of the support frame, an electric push rod is arranged on the upper end face of the support frame, the piston rod of the electric push rod penetrates through the upper end face of the support frame and is fixedly connected with the pressing piece, the horizontal frame body of the support frame is symmetrically provided with partition plates, and a discharging port through which the pressing piece passes is arranged between the two partition plates; The partition plates divide the inner cavity of the horizontal frame body of the support frame into two parts, the lower half inner cavity is provided with a detachable collecting frame, and the upper half inner cavity is symmetrically provided with trapezoidal blocking blocks which are slidably arranged, the inclined surfaces of the two blocking blocks are opposite to each other, the pressing piece is matched with the blocking blocks, the pressing piece can drive the two blocking blocks to move, and springs five are fixedly connected between the outer side faces of the blocking blocks and the inner walls of the support frame; The blocking mechanism comprises a horizontal connection pipe one, a hollow support shaft, a circular vibration plate and a metal filter plate two, the right end of the connection pipe one is fixedly connected with the left side plate and communicated with the through hole, the filter plate two is arranged in the through hole of the left side plate, the vibration plate is slidably arranged in the connection pipe one, the left end of the connection pipe one is provided with a cover, the left end of the support shaft is rotationally matched with the cover, the right end of the support shaft penetrates through the vibration plate and the filter plate two, the filter plate two is fixedly connected with the support shaft, the vibration plate is slidably matched with the support shaft, and springs two are fixedly connected between the vibration plate and the cover and arranged on the circumferential surface of the support shaft.

2. The high-efficiency heat-dissipation type large-capacity oil-immersed transformer according to claim 1, characterized in that: The circumferential surface of the support shaft beyond the filter plate two is rotationally provided with a scraping piece for cleaning the surface of the filter plate two and a fan blade for driving the support shaft to rotate, and the support shaft is provided with a locking assembly for limiting the vibration plate.

3. A high-efficiency heat-dissipation type large-capacity oil-immersed transformer according to claim 2, characterized by: The locking assembly comprises a sliding shaft and a clamping block, the left end of the sliding shaft is fixedly provided with a circular supporting block sliding in the inner cavity of the supporting shaft, the left side surface of the supporting block is fixedly provided with a push rod, the right end of the sliding shaft is fixedly provided with a top head, a through slot is formed in the circumferential surface of the supporting shaft, the clamping block is slidingly arranged in the through slot, the lower end surface of the clamping block is fixedly connected with a spring three, the right side surface of the clamping block is provided with a trapezoidal clamping groove two, the clamping groove two is matched with the push rod, the push rod is slidingly arranged in the clamping groove two, the inner cavity of the supporting shaft is fixedly provided with a sleeve, the sliding shaft penetrates through the sleeve and is slidingly matched, the inner circumferential surface of the vibrating plate is provided with an annular clamping groove one, and the annular clamping groove one is matched with the clamping block.

4. The high-efficiency heat-dissipation type large-capacity oil-immersed transformer according to claim 1, characterized in that: The cleaning assembly comprises an oil storage tank, an oil pump and two symmetrical electric valves, the oil cavity in the oil storage tank is provided with a cavity, the upper end of the oil storage tank is fixedly provided with a connecting pipe two in communication therewith, the upper end of the connecting pipe two is fixedly connected with the connecting pipe one and is in communication, the upper electric valve two is arranged between the right side plate of the supporting frame and the vertical pipeline, the left end of the oil pump is communicated with the lower end of the oil storage tank through a connecting pipe, and the lower electric valve two is arranged between the oil pump and the vertical pipeline, and the outer wall of the oil storage tank is provided with heating fins for heating the organic silicon oil.

5. The high-efficiency heat-dissipation type large-capacity oil-immersed transformer according to claim 1, characterized in that: The heat dissipation assembly comprises two symmetrical heat dissipation oil pipes and a plurality of heat dissipation fins, the heat dissipation fins are hollow, the heat dissipation fins are fixedly arranged between the two heat dissipation oil pipes and are in communication with the two heat dissipation oil pipes, one end of the upper heat dissipation oil pipe is fixedly connected with one end of the lower bend pipe and is in communication, and the lower heat dissipation oil pipe is fixedly arranged on the outer end surface of the corresponding oil port and is in communication with the oil port.

6. A high-efficiency heat dissipating type large-capacity oil-immersed transformer according to claim 5, characterized in that: The outer side surface of the heat dissipation fin is fixedly provided with a cooling coil, and the cooling coil is in communication with the cooling water tank.

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