An active moisture-proof oil-immersed transformer

Abstract

The present invention belongs to the technical field of oil-immersed transformers, and discloses an active moisture-proof oil-immersed transformer. The active moisture-proof oil-immersed transformer comprises a base, a rectangular box is fixedly mounted on the upper surface of the base, one end of a bracket is fixedly mounted on both the left and right sides of the upper surface of the base, a transformer box is fixedly mounted on the upper surface of the rectangular box, and the other end of the bracket is fixedly mounted on the transformer box, and an air heating component is arranged in the rectangular box. The active moisture-proof oil-immersed transformer compresses and heats the air and then discharges it through a valve. The heat generated by work is not very high, so that the heat of the air discharged from the transformer box can be controlled, and the problem of high temperature of the internal components caused by the uncontrollable heat can be avoided. The mixing of the air in the components can be achieved, so that the continuous entry of external cold air can be avoided, and the moisture-proof function of the equipment is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of oil-immersed transformers, in particular to an active moisture-proof oil-immersed transformer. Background Art

[0002] Distribution transformer is one of the important equipment in the power supply and distribution system of industrial and mining enterprises and civil buildings. It reduces the 10(6)kV or 35kV network voltage to the 230 / 400V bus voltage used by users. This type of product is suitable for AC 50(60)Hz, three-phase maximum rated capacity 2500kVA (single-phase maximum rated capacity 833kVA, single-phase transformer is generally not recommended), can be used indoors (outdoors), can be installed on poles when the capacity is 315kVA or below, the ambient temperature is not higher than 40℃, not lower than -25℃, the highest daily average temperature is 30℃, the highest annual average temperature is 20℃, the relative humidity does not exceed 90% (ambient temperature 25℃), and the altitude does not exceed 1000m. If it does not meet the above conditions of use, it should be adjusted appropriately according to the relevant provisions of GB6450-86.

[0003] However, in daily use, due to the limitations of the external environment and internal protection measures, the insulation system of the oil-immersed transformer is easily corroded by moisture, which greatly shortens the life of the insulation system and affects the stable operation of the power system. The internal part of the transformer is in a humid state for a long time, which will also cause damage to internal components and affect the service life of the equipment. Therefore, we urgently need an active moisture-proof oil-immersed transformer to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide an active moisture-proof oil-immersed transformer, which removes and controls the humid gas inside the transformer, maintains the humid temperature inside the transformer, and increases the service life of its components.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an active moisture-proof oil-immersed transformer, comprising a base, a rectangular box is fixedly installed on the upper surface of the base, one end of a bracket is fixedly installed on the left and right sides of the upper surface of the base, a transformer box is fixedly installed on the upper surface of the rectangular box, and the other end of the bracket is fixedly installed with the transformer box, an air heating component is arranged in the rectangular box, and a moisture-proof component is arranged on the transformer box.

[0006] Preferably, the air heating component includes an air inlet, which is opened on the left and right sides of the rectangular box, and an air inlet pipe is fixedly installed in the air inlet. An isolation net is fixedly installed on both sides of the rectangular box and on the outside of the air inlet pipe. An exhaust fan is fixedly installed on the inner wall of the rectangular box, and the input end of the exhaust fan is fixedly connected to the air inlet pipe. Mixing boxes are fixedly installed on the left and right sides of the inner bottom wall of the rectangular box, and the input end of the exhaust fan is fixedly connected to the mixing box through a pipe.

[0007] Through the above technical solution, by adding an isolation net, it is possible to avoid sucking dust and impurities in the air into the device when absorbing external air, causing the components in the device to absorb unnecessary dust.

[0008] Preferably, protective shells are fixedly installed on the left and right sides of the upper surface of the rectangular box and above the mixing box, and motors are fixedly installed in the two protective shells. The output ends of the two motors are fixedly installed with the top ends of the transmission rods through couplings, and the bottom ends of the transmission rods extend downward and are fixedly installed with threaded rods, which are located in the mixing box. Adsorption cotton is provided on the outside of the threaded rods, and a temporary storage box is fixedly installed on the front side of the center position of the bottom wall in the rectangular box.

[0009] Through the above technical solution, the function of the mixing box is to mix the outside air with the air exhausted from the equipment again, and absorb part of the moisture in the air through the adsorption cotton.

[0010] Preferably, the opposite sides of the two mixing boxes are fixedly connected to the temporary storage box through pipes, hydraulic cylinders are fixedly installed on the left and right sides of the inner bottom wall of the mixing box, and the two hydraulic cylinders are staggered, a circular rod is fixedly installed on the rear inner wall of the mixing box, and the front and rear sides of the circular rod are rotatably connected with sealing semicircular plates through bearings, the output ends of the two hydraulic cylinders are respectively fixedly installed with the corresponding sealing semicircular plates, a circular air outlet is opened at the center position of the rear inner wall of the temporary storage box, and an internal exhaust fan is fixedly installed in the circular air outlet.

[0011] Preferably, a heating box is fixedly installed on the bottom wall of the rectangular box and located on the rear side of the temporary storage box, and the temporary storage box is fixedly connected to the internal exhaust fan through a circular air outlet, a rotating motor is fixedly installed on the left side of the heating box, and the output end of the rotating motor is rotatably connected to one end of a rotating rod through a coupling, and the other end of the rotating rod extends inwardly into the heating box, a circular barrel is fixedly installed at the center position of the top wall of the heating box, and a piston is movably connected inside the circular barrel.

[0012] Through the above technical solution, the circular air outlet is also fixedly connected to the front side of the circular barrel.

[0013] Preferably, the rotating rod is fixedly installed with a connecting rod at one end located in the heating box, and a connecting rod one is rotatably connected to the right inner wall of the heating box and the corresponding connecting rod position through a circular hole in the inner bearing, a crankshaft is arranged between the connecting rod and the connecting rod one, and the left and right sides of the crankshaft are respectively fixedly installed with the connecting rod and the connecting rod one, the bottom end of the moving rod is fixedly installed on the upper surface of the crankshaft, and the top end of the moving rod is fixedly installed with the piston, a valve is fixedly installed on the top wall of the heating box, the moisture-proof component includes a two-way air outlet pipe, the bottom end of the two-way air outlet pipe is fixedly connected to the valve, the left and right inner walls of the transformer box are fixedly installed with air outlet pipes, and the top end of the two-way air outlet pipe is fixedly connected to the air outlet pipe.

[0014] Through the above technical solution, a rotating motor is used to drive the crankshaft to drive the piston to squeeze and compress the air in the circular barrel to generate heat, and the heat is discharged upward through the valve. The generated heat can control the moisture in the transformer box and avoid damage to equipment components due to excessive heating temperature, thereby achieving control of internal moisture while controlling the internal temperature.

[0015] Preferably, an exhaust fan 1 is fixedly installed on the left and right sides of the top wall of the transformer box through a bracket, the input end of the exhaust fan 1 is fixedly connected to a conical tube, and the output end of the exhaust fan 1 is fixedly connected to a mixing box in the rectangular box through a pipeline.

[0016] By adopting the above technical solution, the beneficial effects of the present invention are:

[0017] 1. The active moisture-proof oil-immersed transformer can remix the outside air with the processed air in the equipment through the setting of the air heating component. After mixing, the outside air temperature is increased to a certain extent, and the moisture in the air is adsorbed by the adsorption cotton. The air discharged into the circular barrel is continuously compressed and worked by the movement generated by the rotating motor and crankshaft, piston and moving rod. After the air is compressed and heated, it is discharged through the valve. The heat generated by the work is not very high, so the heat of the air discharged from the transformer box can be controlled, and the problem of high temperature of the internal components caused by the uncontrollable heat can be avoided. The mixing of the air in the components can be realized, so as to avoid the continuous entry of external cold air, and greatly improve the moisture-proof function of the equipment.

[0018] 2. The active moisture-proof oil-immersed transformer can form rotating wind in the transformer box by arranging an exhaust fan on the transformer box and absorbing the air in the transformer box with a conical tube, thereby improving the circulation efficiency of hot air in the transformer box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the front cross-section structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the heating box structure of the present invention.

[0021] In the figure: 1 base, 2 rectangular box, 3 bracket, 4 transformer box,

[0022] 5 air heating assembly, 51 air inlet, 52 air inlet pipe, 53 isolation net, 54 exhaust fan, 55 mixing box, 56 protective shell, 57 motor, 58 transmission rod, 59 threaded rod, 510 adsorption cotton, 511 temporary storage box, 512 hydraulic cylinder, 513 round rod, 514 sealing semicircular plate, 515 round air outlet, 516 internal exhaust fan, 517 heating box, 518 rotating motor, 519 rotating rod, 520 round barrel, 521 piston, 522 connecting rod, 523 connecting rod 1, 524 crankshaft, 525 moving rod, 526 valve,

[0023] 6 moisture-proof component, 61 two-way air outlet pipe, 62 air outlet pipe, 63 exhaust fan 1, 64 conical pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-2The present invention provides a technical solution: an active moisture-proof oil-immersed transformer, comprising a base 1, a rectangular box 2 is fixedly installed on the upper surface of the base 1, one end of a bracket 3 is fixedly installed on the left and right sides of the upper surface of the base 1, a transformer box 4 is fixedly installed on the upper surface of the rectangular box 2, and the other end of the bracket 3 is fixedly installed with the transformer box 4, an air heating component 5 is arranged in the rectangular box 2, a moisture-proof component 6 is arranged on the transformer box 4, the air heating component 5 includes an air inlet 51, the air inlet 51 is opened on the left and right sides of the rectangular box 2, an air inlet pipe 52 is fixedly installed in the air inlet 51, an isolation net 53 is fixedly installed on both sides of the rectangular box 2 and on the outside of the air inlet pipe 52, an exhaust fan 54 is fixedly installed on the inner wall of the rectangular box 2, the input end of the exhaust fan 54 is fixedly connected to the air inlet pipe 52, a mixing box 55 is fixedly installed on the left and right sides of the inner bottom wall of the rectangular box 2, and the input end of the exhaust fan 54 is fixedly connected to the air inlet pipe 52. It is fixedly connected with the mixing box 55 through a pipeline, and by adding an isolation net 53, it can be achieved that when absorbing the outside air, dust and impurities in the air can be avoided from being sucked into the equipment, causing the components in the equipment to absorb unnecessary dust. Protective shells 56 are fixedly installed on the left and right sides of the upper surface of the rectangular box 2 and above the mixing box 55, and motors 57 are fixedly installed in the two protective shells 56. The output ends of the two motors 57 are fixedly installed with the top ends of the transmission rods 58 through couplings, and the bottom ends of the transmission rods 58 extend downward and are fixedly installed with threaded rods 59, which are located in the mixing box 55. Adsorption cotton 510 is arranged on the outside of the threaded rods 59. A temporary storage box 511 is fixedly installed on the front side of the center position of the bottom wall of the rectangular box 2. The function of the mixing box 55 is to mix the outside air with the exhaust air in the equipment again, and to absorb part of the moisture in the air through the adsorption cotton 510;

[0026] The opposite sides of the two mixing boxes 55 are fixedly connected to the temporary storage box 511 through pipes. Hydraulic cylinders 512 are fixedly installed on the left and right sides of the inner bottom wall of the mixing box 55, and the two hydraulic cylinders 512 are staggered. A circular rod 513 is fixedly installed on the inner wall of the rear side of the mixing box 55, and the front and rear sides of the circular rod 513 are rotatably connected with a sealing semicircular plate 514 through a bearing. The output ends of the two hydraulic cylinders 512 are fixedly installed with the corresponding sealing semicircular plates 514, respectively. A circular air outlet 515 is opened at the center of the inner wall of the rear side of the temporary storage box 511, and an internal exhaust fan 516 is fixedly installed in the circular air outlet 515. The inner bottom wall of the rectangular box 2 and the rear side of the temporary storage box 511 are fixedly installed. There is a heating box 517, and the temporary storage box 511 is fixedly connected to the internal exhaust fan 516 through a circular air outlet 515. A rotating motor 518 is fixedly installed on the left side of the heating box 517, and the output end of the rotating motor 518 is rotatably connected to one end of a rotating rod 519 through a coupling, and the other end of the rotating rod 519 extends inwardly into the heating box 517. A circular barrel 520 is fixedly installed at the center of the top wall of the heating box 517, and a piston 521 is movably connected in the circular barrel 520. The circular air outlet 515 is also fixedly connected to the front side of the circular barrel 520, and a connecting rod 522 is fixedly installed on one end of the rotating rod 519 located in the heating box 517. The right inner wall of the heating box 517 and The corresponding connecting rod 522 is rotatably connected with a connecting rod 1 523 through a circular hole inner bearing, a crankshaft 524 is arranged between the connecting rod 522 and the connecting rod 1 523, and the left and right sides of the crankshaft 524 are respectively fixedly installed with the connecting rod 522 and the connecting rod 1 523, the bottom end of the moving rod 525 is fixedly installed on the upper surface of the crankshaft 524, and the top end of the moving rod 525 is fixedly installed with the piston 521, a valve 526 is fixedly installed on the top wall of the heating box 517, the moisture-proof component 6 includes a two-way air outlet pipe 61, the bottom end of the two-way air outlet pipe 61 is fixedly connected with the valve 526, and the inner walls on the left and right sides of the transformer box 4 are fixedly installed with air outlet pipes 62, and the two-way air outlet pipes 61 are fixedly connected with the valve 526. The top is fixedly connected to the air outlet pipe 62, and the rotating motor 518 drives the crankshaft 524 to drive the piston 521 to squeeze and compress the air in the circular barrel 520 to generate heat, and the heat is discharged upward through the valve 526. The generated heat can control the moisture in the transformer box 4 and avoid damage to equipment components due to excessive heating temperature, thereby achieving control of internal moisture while controlling the internal temperature. The left and right sides of the top wall of the transformer box 4 are fixedly installed with an exhaust fan 63 through a bracket, and the input end of the exhaust fan 63 is fixedly connected to a conical tube 64, and the output end of the exhaust fan 63 is fixedly connected to the mixing box 55 in the rectangular box 2 through a pipeline.

[0027] When the active moisture-proof oil-immersed transformer is working, after the exhaust fan 54 sucks in the outside air, the motor 57 is started, driving the transmission rod 58 to drive the threaded rod 59 to rotate, and the outside air enters the mixing box 55 to rotate. After the exhaust fan 63 is started to drive the air in the transformer box 4 to enter the mixing box 55, the air enters the temporary storage box 511 after the moisture in the air is absorbed by the adsorption cotton 510, and enters the circular barrel 520 in sequence through the circular air outlet 515. The rotating motor 518 is started to drive the crankshaft 524 to rotate and drive the piston 521 to rotate, compressing the air in the circular barrel 520 to do work and heating, and moves upward through the valve 526 into the air outlet 62 to be discharged into the transformer box 4, completing the heating of the transformer box 4, and the equipment continues to run to realize the cycle operation.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An active moisture-proof oil-immersed transformer, comprising a base (1), characterized in that: A rectangular box (2) is fixedly mounted on the upper surface of the base (1); one end of a bracket (3) is fixedly mounted on both left and right sides of the upper surface of the base (1); a transformer box (4) is fixedly mounted on the upper surface of the rectangular box (2); and the other end of the bracket (3) is fixedly mounted on the transformer box (4); an air heating component (5) is arranged in the rectangular box (2); and a moisture-proof component (6) is arranged on the transformer box (4); The air heating component (5) comprises an air inlet (51), the air inlet (51) is opened on the left and right sides of the rectangular box (2), an air inlet pipe (52) is fixedly installed in the air inlet (51), an isolation net (53) is fixedly installed on both sides of the rectangular box (2) and located outside the air inlet pipe (52), an exhaust fan (54) is fixedly installed on the inner wall of the rectangular box (2), the input end of the exhaust fan (54) is fixedly connected to the air inlet pipe (52), and a mixing box (55) is fixedly installed on the left and right sides of the inner bottom wall of the rectangular box (2), and the input end of the exhaust fan (54) is fixedly connected to the mixing box (55) through a pipeline; Protective shells (56) are fixedly installed on the left and right sides of the upper surface of the rectangular box (2) and located above the mixing box (55), and motors (57) are fixedly installed in the two protective shells (56). The output ends of the two motors (57) are fixedly installed with the top ends of the transmission rods (58) through couplings, and the bottom ends of the transmission rods (58) extend downward and are fixedly installed with threaded rods (59), the threaded rods (59) are located in the mixing box (55), and adsorption cotton (510) is arranged on the outside of the threaded rods (59). A temporary storage box (511) is fixedly installed on the front side of the center position of the bottom wall of the rectangular box (2); The opposite sides of the two mixing boxes (55) are fixedly connected to the temporary storage box (511) through pipelines. The left and right sides of the inner bottom wall of the mixing box (55) are fixedly installed with hydraulic cylinders (512), and the two hydraulic cylinders (512) are staggered. A circular rod (513) is fixedly installed on the rear inner wall of the mixing box (55), and the front and rear sides of the circular rod (513) are rotatably connected to a sealing semicircular plate (514) through a bearing. The output ends of the two hydraulic cylinders (512) are respectively fixedly installed with the corresponding sealing semicircular plates (514). A circular air outlet (515) is opened at the center of the rear inner wall of the temporary storage box (511), and an internal exhaust fan (516) is fixedly installed in the circular air outlet (515); A heating box (517) is fixedly installed on the inner bottom wall of the rectangular box (2) and located at the rear side of the temporary storage box (511), and the temporary storage box (511) is fixedly connected to the internal exhaust fan (516) through a circular air outlet (515). A rotating motor (518) is fixedly installed on the left side of the heating box (517), and the output end of the rotating motor (518) is rotatably connected to one end of a rotating rod (519) through a coupling, and the other end of the rotating rod (519) extends inwardly into the heating box (517). A circular barrel (520) is fixedly installed at the center position of the inner top wall of the heating box (517), and a piston (521) is movably connected inside the circular barrel (520); The rotating rod (519) is fixedly mounted with a connecting rod (522) at one end located in the heating box (517); a connecting rod (523) is rotatably connected to the right inner wall of the heating box (517) and corresponding to the connecting rod (522) through a circular hole in the inner bearing; a crankshaft (524) is arranged between the connecting rod (522) and the connecting rod (523); and the left and right sides of the crankshaft (524) are respectively fixedly mounted with the connecting rod (522) and the connecting rod (523); the upper surface of the crankshaft (524) The bottom end of a moving rod (525) is fixedly mounted on the surface, and the top end of the moving rod (525) is fixedly mounted on the piston (521); a valve (526) is fixedly mounted on the top wall of the heating box (517); the moisture-proof component (6) includes a two-way air outlet pipe (61), the bottom end of the two-way air outlet pipe (61) is fixedly connected to the valve (526); the left and right inner walls of the transformer box (4) are both fixedly mounted with air outlet pipes (62), and the top end of the two-way air outlet pipe (61) is fixedly connected to the air outlet pipe (62); An exhaust fan (63) is fixedly installed on the left and right sides of the inner top wall of the transformer box (4) through brackets, the input end of the exhaust fan (63) is fixedly connected to a conical pipe (64), and the output end of the exhaust fan (63) is fixedly connected to the mixing box (55) in the rectangular box (2) through a pipeline.

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