Transformer oil storage cabinet

Abstract

The present invention discloses a transformer oil storage cabinet, which relates to the technical field of transformers, and comprises an oil storage cabinet shell, wherein a cooling mechanism is arranged inside the oil storage cabinet shell, and a U-shaped leg is symmetrically fixedly installed near the edge of the bottom of the oil storage cabinet shell, and a disassembly mechanism is arranged at the bottom of the U-shaped leg. In this transformer oil storage cabinet, under the action of a circulating pump, the metal fluid inside the inner heat exchange tube and the outer heat exchange tube will circulate continuously, and at the same time, the graphene coating on the surface of both tubes can absorb the heat of the transformer oil and discharge it into the outside air, thereby improving the volume expansion of the transformer oil due to excessive temperature. When the thermal expansion is improved, the manufacturing volume of the oil storage cabinet shell can be reduced to a certain extent, thereby reducing the difficulty of production, processing, installation and maintenance procedures, and improving economic benefits.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and more specifically, to a transformer oil storage cabinet. Background Art

[0002] The transformer oil conservator, also known as the oil pillow or oil reservoir, is an important component of the transformer. It is used to store and regulate transformer oil. It is connected to the transformer body through a connecting pipe. It is generally composed of a metal tank or container with an air bag or diaphragm inside to isolate oil and air. The air bag or diaphragm can be adjusted according to the expansion and contraction of the oil to maintain the pressure balance inside the transformer.

[0003] At present, large-scale power transformers have a large capacity of transformer oil for cooling inside, which will generate a lot of heat during the operation of the transformer, causing the transformer oil to expand and contract. After the transformer oil expands, it needs to wait for natural cooling after entering the oil conservator. After natural cooling, the transformer oil shrinks and returns to the transformer device. However, the natural cooling efficiency is low. Therefore, in order to prevent the transformer oil from growing too large after thermal expansion and being unable to be accommodated by the oil conservator, large-volume oil conservators need to be manufactured and put into use. Large-volume oil conservators not only have high production and processing costs, but are also difficult to install and maintain, and have low overall economic benefits. Summary of the invention

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a transformer oil conservator, which can overcome the problem that the oil conservator cannot accommodate the transformer oil after the volume increases too much due to thermal expansion, and a large-volume oil conservator needs to be manufactured and put into use. However, the large-volume oil conservator not only has high production and processing costs, but also is difficult to install and maintain, and has low overall economic benefits.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] The present invention provides a transformer oil conservator, comprising an oil conservator shell, wherein a cooling mechanism is arranged inside the oil conservator shell, a U-shaped leg is symmetrically fixedly installed at the bottom of the oil conservator shell near the edge, a disassembly mechanism is arranged at the bottom of the U-shaped leg, a liquid level display mechanism is symmetrically arranged at a position near the front side of the outer surface of the oil conservator shell, and the cooling mechanism comprises a first connecting pipe and a controller, the first connecting pipe is installed at a position near the middle front side of the inner part of the oil conservator shell, both ends of the first connecting pipe are fixedly connected with an inner heat exchange pipe, one end of the two inner heat exchange pipes on the opposite sides are fixedly connected with a through pipe, the bottom ends of the two through pipes are fixedly connected with a second connecting pipe, one end of one of the second connecting pipes is fixedly connected with an outer heat exchange pipe, and a circulating pump is installed between the outer heat exchange pipe and the other second connecting pipe.

[0007] In a preferred technical solution of the present invention, the through-tube is in a vertical state and penetrates the outer surface of the oil conservator shell, the second connecting tube is in a horizontal state and extends to the front side, a first mounting bracket is fixedly installed on the rear surface of the controller, the first mounting bracket is fixedly installed on the outer surface of the oil conservator shell, a plurality of fixed sleeves are installed on the outer surface of the outer heat exchange tube, a second mounting bracket is fixedly connected between the rear surfaces of the plurality of fixed sleeves, the second mounting bracket is fixedly connected to the outer surface of the oil conservator shell, and a temperature sensor is installed on the outside of the outer heat exchange tube.

[0008] In a preferred technical solution of the present invention, an exhaust pipe is fixedly connected to the top of the oil conservator shell near one side edge, a breathing pipe is installed on one side of the oil conservator shell, an oil filling and discharge pipe is installed at the bottom of the oil conservator shell near one side edge, a connecting pipe is fixedly connected to the bottom of the oil conservator shell near the middle, and a clamping block is fixedly connected to the front surface of the U-shaped leg near the bottom.

[0009] In a preferred technical solution of the present invention, the liquid level display mechanism comprises a transparent tube, the transparent tube is U-shaped and the two ends are respectively connected to the top and the bottom of the oil storage tank shell, the outside of the transparent tube is provided with a protective shell, the front surface of the protective shell is provided with an observation groove, and the protective shell is fixedly connected to the outer surface of the oil storage tank shell near the front side.

[0010] In a preferred technical solution of the present invention, a positioning column is fixedly connected between the inner top and the inner bottom of the transparent tube, the outer surface of the positioning column is covered with an inner magnetic ring, the outer surface of the inner magnetic ring is covered with a sponge cover, the outer surface of the transparent tube is covered with an outer magnetic block, and the outer magnetic block is slidably embedded in the interior of the protective shell.

[0011] In a preferred technical solution of the present invention, a turning block is fixedly connected to the front surface of the external magnetic block, the outer surface of the turning block passes through the observation slot and extends to the front side, a screw rod is fixedly connected to the bottom of the turning block near the front side, and a sleeve handle is threadedly connected to the outer surface of the screw rod.

[0012] In a preferred technical solution of the present invention, the disassembly and assembly mechanism includes a mounting seat, and a quick-release sleeve is fixedly connected to the top of the mounting seat near the four corners, a slot is provided at the top of the quick-release sleeve near the rear side, and the bottom of the U-shaped leg and the slot are plug-connected.

[0013] In a preferred technical solution of the present invention, an inner groove is provided on the front inner wall of the slot, an engaging block is slidably arranged inside the inner groove, a spring is fixedly connected to the front surface of the engaging block, and the front end of the spring is connected to the front inner wall of the inner groove.

[0014] In a preferred technical solution of the present invention, a connecting rod is fixedly connected to the front surface of the engagement block, an outer surface of the connecting rod slides through the outer surface of the quick release sleeve and extends to the front side, and a front end of the connecting rod is fixedly connected to a limiting block.

[0015] In a preferred technical solution of the present invention, a turning frame is fixedly connected between the front surfaces of two adjacent limit blocks, and a connecting rod is symmetrically fixedly connected between the outer surfaces of the two turning frames.

[0016] The beneficial effects of the present invention are:

[0017] The present invention provides a transformer oil conservator. When the transformer oil in the transformer body enters into the outer shell of the oil conservator, the temperature of the metal fluid in the inner heat exchange tube and the outer heat exchange tube will gradually increase. When the temperature exceeds the maximum value preset by the temperature sensor, the controller will send a start signal to the circulation pump. Under the action of the circulation pump, the metal fluid in the inner heat exchange tube and the outer heat exchange tube will circulate continuously. At the same time, the graphene coating on the surfaces of the two tubes can absorb the heat of the transformer oil and discharge it into the outside air, thereby improving the volume expansion of the transformer oil due to excessive temperature. When the thermal expansion is improved, the manufacturing volume of the outer shell of the oil conservator can be reduced to a certain extent, thereby reducing the difficulty of production, processing, installation and maintenance procedures, and improving economic benefits.

[0018] The transparent tube is provided to facilitate observation of the oil level height inside the oil storage cabinet shell, and the outer magnetic block, the inner magnetic ring and the sponge sleeve cooperate to clean the inner wall of the transparent tube, thereby restoring the transparency of the transparent tube. At the same time, under the action of the sleeve handle and the screw rod, the outer magnetic block can be operated at a low position. The design has a simple structure, low manufacturing cost, practical functions and improved use effect.

[0019] The quick-release sleeve, slot, inner groove, spring, engagement block and the block on the surface of the U-shaped leg cooperate to facilitate the installation of the oil storage cabinet shell, and with the cooperation of the turning frame and the connecting rod, the fixation of the oil storage cabinet shell can be quickly released. The design has a simple structure and is easy to disassemble and assemble. It does not require a large number of screws, which greatly reduces the difficulty and cost of installation and improves economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of a transformer oil storage cabinet of the present invention;

[0021] Figure 2 A cross-sectional view of a transformer oil conservator of the present invention;

[0022] Figure 3 It is a partial structural schematic diagram of a transformer oil conservator of the present invention;

[0023] Figure 4 It is a schematic structural diagram of a cooling mechanism of a transformer oil storage cabinet of the present invention;

[0024] Figure 5 This is a schematic structural diagram of a liquid level display mechanism of a transformer oil storage cabinet according to the present invention;

[0025] Figure 6 It is a partial structural schematic diagram of a liquid level display mechanism of a transformer oil storage cabinet of the present invention;

[0026] Figure 7 This is a schematic structural diagram of a disassembly and assembly mechanism of a transformer oil conservator of the present invention;

[0027] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0028] In the figure:

[0029] 1. Oil storage cabinet shell; 11. Exhaust pipe; 12. Breathing pipe; 13. Oil filling and discharge pipe; 14. Connecting pipe; 15. U-shaped leg; 16. Block; 2. Cooling mechanism; 201. Internal heat exchange pipe; 202. First connecting pipe; 203. Through pipe; 204. Second connecting pipe; 205. External heat exchange pipe; 206. Fixed sleeve; 207. Temperature sensor; 208. Circulating pump; 209. Controller; 210. First mounting bracket; 211. Second mounting bracket; 3. Liquid level display unit Structure; 301, protective shell; 302, observation slot; 303, transparent tube; 304, positioning column; 305, inner magnetic ring; 306, sponge cover; 307, outer magnetic block; 308, turning block; 309, screw rod; 310, handle; 4, disassembly and assembly mechanism; 401, mounting seat; 402, quick release sleeve; 403, slot; 404, inner slot; 405, engagement block; 406, connecting rod; 407, spring; 408, limit block; 409, turning frame; 410, connecting rod. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0031] like Figure 1-8As shown, an embodiment provides a transformer oil conservator, comprising an oil conservator shell 1, a cooling mechanism 2 is arranged inside the oil conservator shell 1, a U-shaped leg 15 is symmetrically fixedly installed at the bottom of the oil conservator shell 1 near the edge, a disassembly mechanism 4 is arranged at the bottom of the U-shaped leg 15, a liquid level display mechanism 3 is symmetrically arranged at the outer surface of the oil conservator shell 1 near the front side, and the cooling mechanism 2 comprises a first connecting pipe 202 and a controller 209, the first connecting pipe 202 is installed at a position near the middle front side of the inner part of the oil conservator shell 1, both ends of the first connecting pipe 202 are fixedly connected with inner heat exchange pipes 201, the opposite ends of the two inner heat exchange pipes 201 are fixedly connected with through pipes 203, the bottom ends of the two through pipes 203 are fixedly connected with second connecting pipes 204, one end of one of the second connecting pipes 204 is fixedly connected with an outer heat exchange pipe 205, and a circulating pump 208 is installed between the outer heat exchange pipe 205 and the other second connecting pipe 204.

[0032] like Figure 1 , Figure 2 and Figure 4As shown, the through-tube 203 is in a vertical state and penetrates the outer surface of the oil conservator shell 1, the second connecting tube 204 is in a horizontal state and extends to the front side, the rear surface of the controller 209 is fixedly mounted with a first mounting bracket 210, the first mounting bracket 210 is fixedly mounted on the outer surface of the oil conservator shell 1, a plurality of fixed sleeves 206 are mounted on the outer surface of the outer heat exchange tube 205, the rear surfaces of the plurality of fixed sleeves 206 are fixedly connected with a second mounting bracket 211, the second mounting bracket 211 is fixedly connected to the outer surface of the oil conservator shell 1, a temperature sensor 207 is mounted on the outside of the outer heat exchange tube 205, the through-tube 203 penetrates the outer surface of the oil conservator shell 1, and cooperates with the second connecting tube 204 to mainly transfer the inner heat exchange The outer heat exchange tube 201 and the inner heat exchange tube 201 are connected in common use. The first mounting frame 210 is mainly used to mount the controller 209 on the outer surface of the oil storage tank shell 1. The second mounting frame 211 is mainly used to mount the fixing sleeve 206 on the outer surface of the oil storage tank shell 1. The front end of the fixing sleeve 206 is a semicircular buckle, which is connected with bolts. It is mainly used to install the outer heat exchange tube 205 and support it. The surfaces of the outer heat exchange tube 205 and the inner heat exchange tube 201 are coated with graphene coating, which has extremely high thermal conductivity and can significantly improve the thermal conductivity of the outer heat exchange tube 205 and the inner heat exchange tube 201. The inner heat exchange tube 201 and the outer heat exchange tube 205 are filled with metal fluid, such as potassium-sodium molten metal, pure sodium, etc. Its thermal conductivity is higher than that of general liquid. When the temperature sensor 207 detects that the temperature of the metal fluid inside the external heat exchange tube 205 exceeds the set value, the temperature signal is converted into an electrical signal and transmitted to the controller 209. At this time, after the controller 209 sends a start signal to the circulation pump 208, under the action of the circulation pump 208, the metal fluid in the external heat exchange tube 205 enters one of the internal heat exchange tubes 201 inside the oil storage tank shell 1 through the second connecting tube 204 and the through-tube 203, and then enters another internal heat exchange tube 201 through the first connecting tube 202, and then returns to the external heat exchange tube 205 through another through-tube 203 and the second connecting tube 204, and under the action of the circulation pump 208, the metal fluid The fluid circulates repeatedly. When the metal fluid is in the external heat exchange tube 205, the heat will evaporate quickly under the action of the graphene coating on the surface to achieve the cooling effect. The metal fluid in the internal heat exchange tube 201 will absorb the heat of the transformer oil entering the oil conservator shell 1 due to thermal expansion and contraction under the action of the graphene coating on the surface, thereby achieving the effect of reducing the heat of the transformer oil. The cooled transformer oil will return to the inside of the transformer through the connecting pipe 14, thereby improving the volume expansion of the transformer oil due to excessive temperature. When the thermal expansion is improved, the volume of the oil conservator shell 1 can be reduced to a certain extent, thereby reducing the difficulty of production, processing, installation and maintenance procedures, and improving economic benefits.

[0033] like Figure 1-Figure 3As shown, an exhaust pipe 11 is fixedly connected to the top of the oil conservator shell 1 near one side edge, a breathing pipe 12 is installed on one side of the oil conservator shell 1, an oil filling and discharging pipe 13 is installed near one side edge of the bottom of the oil conservator shell 1, a connecting pipe 14 is fixedly connected to the bottom of the oil conservator shell 1 near the middle, and a clamping block 16 is fixedly connected to the front surface of the U-shaped leg 15 near the bottom. The exhaust pipe 11 is mainly used to quickly discharge the gas through the exhaust pipe 11 when a large amount of gas is generated due to a transformer failure to prevent the transformer from exploding. The breathing pipe 12 is mainly used when the transformer oil temperature changes, the volume of the oil will change, and when the oil temperature rises, the transformer As the volume of the transformer oil increases, the air in the oil conservator shell 1 is compressed and the pressure increases. In order to maintain the pressure balance in the transformer, part of the air in the oil conservator shell 1 will be discharged into the atmosphere through the breathing tube 12. At this time, bubbles will appear in the oil collecting cup of the breathing tube 12, sometimes very violently. The oil filling and draining pipe 13 can be used to fill or drain the transformer, which is convenient for the inspection and maintenance of the transformer. The connecting pipe 14 is used to connect the transformer oil conservator shell 1 with the transformer body so that the transformer oil can flow between the oil conservator shell 1 and the transformer body to meet the insulation and heat dissipation requirements of the transformer. The U-shaped leg 15 is mainly used to support the oil conservator shell 1.

[0034] like Figure 1 , Figure 2 and Figure 5 As shown, the liquid level display mechanism 3 includes a transparent tube 303, which is U-shaped and has two ends respectively connected to the top and bottom of the oil conservator shell 1. The transparent tube 303 is provided with a protective shell 301 on the outside, and an observation slot 302 is provided on the front surface of the protective shell 301. The protective shell 301 is fixedly connected to the outer surface of the oil conservator shell 1 near the front side. The transparent tube 303 is made of polyamide material, which is a transparent material with good mechanical strength, wear resistance and corrosion resistance. The transparent tube 303 is semi-enclosed outside the oil conservator shell 1, and the two ends are respectively connected to the inner surface of the oil conservator shell 1. The highest point and the lowest point of the oil storage cavity are connected. When the transformer oil in the transformer body expands due to heat and enters the oil storage cabinet shell 1, part of the transformer oil at the lowest point will enter the transparent tube 303, and the liquid levels of the two are level. Therefore, the oil level inside the oil storage cabinet shell 1 can be judged by observing the oil level height inside the transparent tube 303, so as to timely add or discharge the transformer oil. The protective shell 301 surrounds the outside of the transparent tube 303, and is mainly used to protect the transparent tube 303. The surface of the protective shell 301 is provided with an observation groove 302, which is mainly used to observe the oil level height inside the transparent tube 303.

[0035] like Figure 1 , Figure 2 and Figure 5As shown, a positioning column 304 is fixedly connected between the inner top and the inner bottom of the transparent tube 303, the outer surface of the positioning column 304 is covered with an inner magnetic ring 305, the outer surface of the inner magnetic ring 305 is covered with a sponge cover 306, the outer surface of the transparent tube 303 is covered with an outer magnetic block 307, and the outer magnetic block 307 is slidably embedded in the protective shell 301. The sponge cover 306 is made of graphene high-elastic sponge, which has excellent super-hydrophobic and super-oleophilic properties and can circulate and absorb oil. The positioning column 304 It is mainly used to limit the inner magnetic ring 305 so that it can move up and down stably. When the inner wall of the transparent tube 303 adheres to transformer oil and causes the transparency to decrease, the outer magnetic block 307 is moved up and down. At this time, the outer magnetic block 307 will drive the inner magnetic ring 305 to slide up and down inside the transparent tube 303 under the action of magnetic attraction. At this time, the sponge cover 306 on the surface of the inner magnetic ring 305 will scrape off a large amount of transformer oil adhering to the inner wall of the transparent tube 303, thereby restoring the transparency of the transparent tube 303.

[0036] like Figure 1 , Figure 2 and Figure 5 As shown, the front surface of the external magnetic block 307 is fixedly connected to a turning block 308, the outer surface of the turning block 308 passes through the observation slot 302 and extends to the front side, the bottom of the turning block 308 is fixedly connected to a screw rod 309 near the front side, the outer surface of the screw rod 309 is threadedly connected to a sleeve handle 310, the turning block 308 is mainly used to connect the screw rod 309 outside the protective shell 301 and the internal external magnetic block 307, and the sleeve handle 310 can be moved downward on the surface of the screw rod 309 by rotating the sleeve handle 310, thereby increasing the total length of the sleeve handle 310 and the screw rod 309, so that it is convenient to directly hold the sleeve handle 310 at a low place and then directly push the external magnetic block 307 up and down to clean the inner wall of the transparent tube 303 after moving up and down. The design has a simple structure, low manufacturing cost, and practical functions, which greatly improves the use effect, and the way of observing the oil level with the transparent tube 303 is more stable and reliable than the electronic liquid level meter.

[0037] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the disassembly and assembly mechanism 4 includes a mounting seat 401, and quick-release sleeves 402 are fixedly connected to the top of the mounting seat 401 near the four corners. A slot 403 is provided at the top of the quick-release sleeve 402 near the rear side, and the bottom of the U-shaped leg 15 and the slot 403 are plug-connected. The mounting seat 401 is mainly fixedly installed at a high position above the transformer body by welding or bolt connection. When the oil conservator shell 1 needs to be installed, the two pins under the two U-shaped legs 15 at the bottom are first inserted into the slot 403 at the top of the quick-release sleeve 402 to position the oil conservator shell 1.

[0038] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, an inner groove 404 is provided on the front inner wall of the slot 403, and an engaging block 405 is slidably provided inside the inner groove 404. A spring 407 is fixedly connected to the front surface of the engaging block 405, and the front end of the spring 407 is connected to the front inner wall of the inner groove 404. When the U-shaped leg 15 is inserted into the slot 403, the block 16 on the surface will squeeze the engaging block 405 in the inner groove 404 to move forward and squeeze the spring 407 to contract. When the block 16 passes over the engaging block 405, the spring 407 rebounds and pushes the engaging block 405 to reset, thereby limiting the block 16, so that the U-shaped leg 15 is fixed inside the slot 403, completing the installation of the oil storage cabinet housing 1. This installation method is simple and convenient, does not require the use of a large number of bolts, greatly reduces the difficulty of installation, and reduces the installation cost.

[0039] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the front surface of the engaging block 405 is fixedly connected to the connecting rod 406, the outer surface of the connecting rod 406 slides through the outer surface of the quick release sleeve 402 and extends to the front side, and the front end of the connecting rod 406 is fixedly connected to the limiting block 408. By setting the limiting block 408, the maximum stroke of the connecting rod 406 moving backward is limited. When the engaging block 405 moves inside the inner groove 404, the connecting rod 406 will follow the movement. At this time, under the action of the limiting block 408, the maximum stroke of the engaging block 405 is limited, so as to prevent the engaging block 405 from leaving the inner groove 404.

[0040] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, a turning frame 409 is fixedly connected between the front surfaces of two adjacent limit blocks 408, and a connecting rod 410 is symmetrically fixedly connected between the outer surfaces of the two turning frames 409. The turning frame 409 is U-shaped, and the two protruding positions are respectively connected to the two limit blocks 408. The connecting rod 410 is mainly used to connect the two turning frames 409. When it is necessary to disassemble and replace the oil conservator shell 1, by pulling the front turning frame 409 forward, at this time, under the action of the connecting rod 410, the two turning frames 409 will drive the four limit blocks 408 to move forward, thereby cooperating with the connecting rod 406 to drive the four engaging blocks 405 to move forward and away from the card block 16, thereby releasing the fixation of the oil conservator shell 1, and then the oil conservator shell 1 can be lifted upward using a lifting equipment. The overall structure is simple, which greatly reduces the difficulty of installation and removal of the oil conservator shell 1, thereby reducing the disassembly cost and further improving the economic benefit.

[0041] The method of using the device and the working principle are as follows: when using the device, the mounting base 401 is pre-installed at a high position above the transformer body, and then the device is hoisted to the top of the mounting base 401 by a crane or lifting equipment, and then the U-shaped leg 15 below the oil storage cabinet shell 1 is inserted into the slot 403 at the top of the quick-release sleeve 402 by manual assistance. When the U-shaped leg 15 is inserted into the slot 403, the block 16 on the surface squeezes the meshing block 405 in the inner groove 404 to move forward and squeeze the spring 407 to contract. When the block 16 passes over the meshing block 405, the spring 407 rebounds and pushes the meshing block 405 to reset, thereby limiting the block 16, so that the U-shaped leg 15 is fixed in the slot 4 03, the installation of the oil conservator shell 1 is completed, and then the oil conservator shell 1 and the transformer body are connected. When the oil conservator shell 1 needs to be disassembled and replaced later, by pulling the front turning frame 409 forward, under the action of the connecting rod 410, the two turning frames 409 will drive the four limit blocks 408 to move forward, thereby cooperating with the connecting rod 406 to drive the four engaging blocks 405 to move forward and away from the card block 16, thereby releasing the fixation of the oil conservator shell 1, and then use the lifting equipment to lift the oil conservator shell 1 upward. The design has a simple structure and is easy to disassemble and assemble. It does not require a large number of screws, which greatly reduces the difficulty and cost of installation and improves the economic benefit. When the temperature inside the transformer body rises, the internal When the volume of the transformer oil expands and enters the oil storage cabinet shell 1 through the connecting pipe 14, the metal fluid inside the inner heat exchange tube 201 absorbs the heat of the transformer oil, and the inner heat exchange tube 201 and the outer heat exchange tube 205 are connected through the second connecting tube 204 and the through-tube 203. Therefore, the temperature of the metal fluid inside the outer heat exchange tube 205 will gradually increase. When the temperature sensor 207 detects that the temperature of the metal fluid inside the outer heat exchange tube 205 exceeds the set value, the temperature signal is converted into an electrical signal and transmitted to the controller 209. At this time, after the controller 209 sends a start signal to the circulation pump 208, under the action of the circulation pump 208, the metal fluid in the outer heat exchange tube 205 enters the outer heat exchange tube 205 through the second connecting tube 204 and the through-tube 203. The metal fluid enters one of the inner heat exchange tubes 201 inside the oil storage cabinet shell 1, and then enters another inner heat exchange tube 201 through the first connecting tube 202, and then returns to the outer heat exchange tube 205 through another through-tube 203 and the second connecting tube 204. Under the action of the circulating pump 208, the metal fluid circulates repeatedly. When the metal fluid is in the outer heat exchange tube 205 outside, the heat will evaporate quickly under the action of the graphene coating on the surface to achieve the cooling effect. The metal fluid in the inner heat exchange tube 201 inside will absorb the heat of the transformer oil entering the oil storage cabinet shell 1 due to thermal expansion and contraction under the action of the graphene coating on the surface, thereby achieving the effect of reducing the heat of the transformer oil. The cooled transformer oil will return to the inside of the transformer through the connecting tube 14.Thus, the volume expansion of transformer oil due to excessive temperature is improved. When the thermal expansion is improved, the manufacturing volume of the oil storage cabinet shell 1 can be reduced to a certain extent, thereby reducing the difficulty of production, processing, installation and maintenance procedures, and improving economic benefits. When the transformer oil enters the interior of the oil storage cabinet shell 1, part of the transformer oil at the lowest point will enter the transparent tube 303, and the liquid levels inside and outside are level. Therefore, the oil level inside the oil storage cabinet shell 1 can be judged by observing the oil level height inside the transparent tube 303, so that the transformer oil can be added or discharged in time. When the inner wall of the transparent tube 303 adheres to the transformer oil and causes the transparency to decrease, the outer magnetic suction block 303 can be moved up and down to adjust the oil level. 07. At this time, the outer magnetic block 307 will drive the inner magnetic ring 305 to slide up and down inside the transparent tube 303 under the effect of magnetic attraction. At this time, the sponge sleeve 306 on the surface of the inner magnetic ring 305 will scrape off a large amount of transformer oil adhering to the inner wall of the transparent tube 303, thereby restoring the transparency of the transparent tube 303. By rotating the sleeve handle 310, it can be moved downward on the surface of the screw rod 309, thereby increasing the total length of the sleeve handle 310 and the screw rod 309, making it convenient to directly hold the sleeve handle 310 at a low place and directly push the outer magnetic block 307 up and down to clean the inner wall of the transparent tube 303. The design has a simple structure, low manufacturing cost, practical functions, and greatly improves the use effect.

[0042] The wiring diagram of the circulation pump 208, temperature sensor 207, and controller 209 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use, so the control method and wiring layout of the circulation pump 208, temperature sensor 207, and controller 209 are no longer explained in detail.

[0043] Other technologies of this embodiment adopt existing technologies.

[0044] The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present invention.

Claims

1. A transformer oil conservator, comprising an oil conservator housing (1), characterized in that: A cooling mechanism (2) is provided inside the oil conservator shell (1); U-shaped legs (15) are symmetrically fixedly installed at the bottom of the oil conservator shell (1) near the edge; a disassembly mechanism (4) is provided at the bottom of the U-shaped legs (15); and a liquid level display mechanism (3) is symmetrically provided at a position near the front side of the outer surface of the oil conservator shell (1); The cooling mechanism (2) comprises a first connecting pipe (202) and a controller (209); the first connecting pipe (202) is installed at a position near the middle front side of the oil storage cabinet shell (1); both ends of the first connecting pipe (202) are fixedly connected to an inner heat exchange pipe (201); the opposite ends of the two inner heat exchange pipes (201) are fixedly connected to a through pipe (203); the bottom ends of the two through pipes (203) are fixedly connected to a second connecting pipe (204); one end of one of the second connecting pipes (204) is fixedly connected to an outer heat exchange pipe (205); and a circulating pump (208) is installed between the outer heat exchange pipe (205) and the other second connecting pipe (204); The penetration pipe (203) is in a vertical state and penetrates the outer surface of the oil conservator shell (1); the second connecting pipe (204) is in a horizontal state and extends toward the front; a first mounting frame (210) is fixedly mounted on the rear surface of the controller (209); the first mounting frame (210) is fixedly mounted on the outer surface of the oil conservator shell (1); a plurality of fixing sleeves (206) are mounted on the outer surface of the external heat exchange tube (205); a second mounting frame (211) is fixedly connected between the rear surfaces of the plurality of fixing sleeves (206); the second mounting frame (211) is fixedly connected to the outer surface of the oil conservator shell (1); and a temperature sensor (207) is mounted on the outside of the external heat exchange tube (205); An exhaust pipe (11) is fixedly connected to the top of the oil storage cabinet shell (1) near one side edge, a breathing pipe (12) is installed on one side of the oil storage cabinet shell (1), an oil filling and discharge pipe (13) is installed on the bottom of the oil storage cabinet shell (1) near one side edge, a connecting pipe (14) is fixedly connected to the bottom of the oil storage cabinet shell (1) near the middle, and a clamping block (16) is fixedly connected to the front surface of the U-shaped leg (15) near the bottom. The liquid level display mechanism (3) comprises a transparent tube (303), the transparent tube (303) is U-shaped and its two ends are respectively connected to the top and the bottom of the oil storage tank shell (1), the transparent tube (303) is covered with a protective shell (301) on the outside, the front surface of the protective shell (301) is provided with an observation slot (302), and the protective shell (301) is fixedly connected to the outer surface of the oil storage tank shell (1) at a position close to the front side; A positioning column (304) is fixedly connected between the inner top and the inner bottom of the transparent tube (303); the outer surface of the positioning column (304) is covered with an inner magnetic ring (305); the outer surface of the inner magnetic ring (305) is covered with a sponge cover (306); the outer surface of the transparent tube (303) is covered with an outer magnetic block (307); the outer magnetic block (307) is slidably embedded in the interior of the protective shell (301); A turning block (308) is fixedly connected to the front surface of the outer magnetic attraction block (307); the outer surface of the turning block (308) passes through the observation slot (302) and extends to the front side; a screw rod (309) is fixedly connected to the bottom of the turning block (308) near the front side; and a sleeve handle (310) is threadedly connected to the outer surface of the screw rod (309).

2. A transformer oil conservator according to claim 1, characterized in that: The disassembly and assembly mechanism (4) comprises a mounting seat (401), the top of the mounting seat (401) being fixedly connected to quick-release sleeves (402) at positions near four corners, the top of the quick-release sleeve (402) being provided with a slot (403) at a position near the rear side, and the bottom of the U-shaped leg (15) and the slot (403) being plug-connected.

3. A transformer oil conservator according to claim 2, characterized in that: An inner groove (404) is provided on the front inner wall of the slot (403), an engaging block (405) is slidably arranged inside the inner groove (404), a spring (407) is fixedly connected to the front surface of the engaging block (405), and the front end of the spring (407) is connected to the front inner wall of the inner groove (404).

4. A transformer oil conservator according to claim 3, characterized in that: The front surface of the engagement block (405) is fixedly connected to a connecting rod (406), the outer surface of the connecting rod (406) slides through the outer surface of the quick-release sleeve (402) and extends to the front side, and the front end of the connecting rod (406) is fixedly connected to a limiting block (408).

5. The transformer oil conservator according to claim 4, characterized in that: A turning frame (409) is fixedly connected between the front surfaces of two adjacent limit blocks (408), and a connecting rod (410) is symmetrically fixedly connected between the outer surfaces of the two turning frames (409).

Images