A dust-proof and noise-reducing dry-type transformer

Abstract

The invention discloses a dustproof and noise-reducing dry-type transformer, which relates to the technical field of dry-type transformers and comprises a protective box, wherein a transformer working component is arranged inside the protective box, and a dehumidification component is arranged at the bottom of the protective box, wherein the dehumidification component comprises an installation bin; the dustproof and noise-reducing dry-type transformer, in order to ensure that the humidity of the gas circulating during the operation of the dry-type transformer is maintained at a relatively stable level, firstly starts an air pump to extract gas, and converts the water vapor in the gas into water droplets through the change of temperature difference, so as to achieve air drying, and the dried gas finally enters the inside of a circular groove through a drying pipe, and drives a fan to rotate under the impact of air pressure, so that the gas enters the inside of the protective box, and drives a plurality of lifting balls to move upward along a conical tube under the impact of air pressure, so as to achieve gas drying and circulation, and solves the problem in the prior art that excessive air humidity affects the normal operation of the dry-type transformer.

Description

Technical Field

[0001] The invention relates to the technical field of dry-type transformers, and in particular to a dust-proof and noise-reducing dry-type transformer. Background Art

[0002] A wind farm refers to a wind farm established along a highway or in suburban areas. These wind farms use open spaces along the roads to install wind turbines so that wind energy can be used more efficiently to generate electricity. Dry-type transformers in wind farms can convert the low-voltage electricity generated by wind turbines into a higher voltage suitable for transmission to reduce energy loss during transmission. Dry-type transformers can provide electrical isolation to ensure the safety between wind turbines and the power grid and prevent high voltage from damaging the equipment.

[0003] Currently, dry-type transformers used in wind farms are often installed outdoors. Due to the unpredictable outdoor weather, especially during the rainy season, the air humidity is high. Most of the existing wind farms simply use rainproof equipment to reduce the risk of dry-type transformers being rained on. High humidity can cause the insulation material of the dry-type transformer to absorb moisture, reduce its insulation performance, and increase the risk of leakage.

[0004] Therefore, we propose a dust-proof and noise-reducing dry-type transformer to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a dust-proof and noise-reducing dry-type transformer to solve the problem raised in the above background technology that excessive air humidity affects the normal operation of the dry-type transformer.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dust-proof and noise-reducing dry-type transformer, comprising a protective box, a transformer working component is arranged inside the protective box, a dehumidification component is arranged at the bottom of the protective box, the dehumidification component comprises an installation bin, a leak plate is fixed between the relative inner walls of the installation bin, an installation groove is opened at the bottom of the installation bin, an air pump is arranged near one side edge of the bottom surface of the inner wall of the installation groove, an input end of the air pump is fixedly connected to an air inlet pipe, an output end of the air pump is fixedly connected to an air outlet pipe, and the inner bottom surface of the installation groove is near the center A water tank is fixed, a cooling box is fixed on the top of the water tank, a semiconductor refrigeration plate is arranged between the opposite inner walls of the cooling box near the top, a plurality of guide plates are fixed on the inner wall of the cooling box, two inclined plates are fixed on the inner bottom surface of the cooling box, limiting rods are fixed on the bottom of the two inclined plates, a plurality of anti-compression rods are fixedly installed between the outer surfaces of the two limiting rods, springs are arranged on the tops of the plurality of anti-compression rods, a lifting plate is fixed between the tops of the plurality of springs, a U-shaped pipe is fixedly connected to the top of the cooling box, and a hollow block is fixed on the inner top surface of the mounting groove.

[0007] Preferably, a circular groove is opened near the center of the inner wall of the installation bin, a mounting rod is fixedly connected between the inner walls of the circular groove, a limiting shaft is fixed on the top of the mounting rod, a fan is rotatably sleeved on the outer surface of the limiting shaft, and a forward and reverse motor is fixedly installed on the bottom of the hollow block by screws.

[0008] Preferably, the output shaft of the forward and reverse motor is fixedly installed with a rotating shaft, a sealing block is fixedly installed on the outer surface of the rotating shaft, a connecting pipe is fixedly connected to the outer surface of one side of the hollow block, a drying pipe is fixedly connected to the outer surface of the other side of the hollow block, an installation box is provided on the inner wall of the drying pipe, the bottom of the U-shaped tube is fixedly connected to the output pipe, and a polymer film is fixedly installed inside the output pipe.

[0009] Preferably, the top of the installation bin is fixedly connected to the bottom of the protection box, one end of the air inlet pipe passes through the outside of the installation bin, one end of the air outlet pipe passes through the inside of the cooling box, the opposite outer surfaces of the lifting plate slide with the outer surfaces of the two limit rods respectively, and the top ends of the multiple springs are fixedly connected to the bottom of the lifting plate.

[0010] Preferably, the bottom ends of the multiple springs are fixedly connected to the tops of the multiple compression rods respectively, the bottom end of the output pipe penetrates into the interior of the water tank, one end of the U-shaped tube penetrates into the interior of the hollow block, the top end of the rotating shaft movably penetrates into the interior of the hollow block to the inner wall, the outer surface of the sealing block is slidably connected to the inner wall of the hollow block, the top end of the connecting pipe penetrates into the interior of the circular groove, and the top end of the drying pipe penetrates into the interior of the circular groove.

[0011] Preferably, the transformer working component includes a high-voltage coil, a low-voltage coil is arranged inside the high-voltage coil, an iron core is arranged on the top of the high-voltage coil, a plurality of insulators are arranged on the outer surface of the high-voltage coil, the plurality of insulators are grouped in pairs, and a high-voltage connecting wire is arranged between the outer surfaces of each group of insulators.

[0012] Preferably, the outer surface of the mounting bin is fixedly connected to a fixing rod, a dust removal assembly is arranged on the top of the fixing rod, the dust removal assembly includes an inlet pipe, one end of the air inlet pipe passes through the interior of the inlet pipe, a supporting block is fixed to the outer surface of the inlet pipe, a driving motor is arranged on the top of the supporting block, and the output shaft of the driving motor is fixedly connected to a rotating rod.

[0013] Preferably, the two ends of the rotating rod are movably inserted into the opposite outer parts of the inlet pipe, and a sealing plate is fixedly sleeved on the outer surface of the rotating rod. The outer surface of the sealing plate is rotatably connected to the inner wall of the inlet pipe. The opposite outer surfaces of the sealing plates are fixed with multiple connecting frames, and the inner walls of the multiple connecting frames are provided with filter cloths. The bottom of the inlet pipe is fixedly connected to a high-pressure bin, and the bottom of the high-pressure bin is fixedly connected to a dust outlet pipe.

[0014] Preferably, a solenoid valve is provided on the outer surface of the dust outlet pipe, a high-pressure pump is provided on the outer surface of the high-pressure bin through an auxiliary block, the output end of the high-pressure pump passes through the interior of the high-pressure bin, and a pressure sensor is provided on the outer surface of the high-pressure bin near the top.

[0015] Preferably, a plurality of drainage assemblies are arranged on the top of the protective box, each of the plurality of drainage assemblies includes a conical tube, the bottoms of each of the plurality of conical tubes penetrate into the interior of the protective box, a lifting ball is arranged inside each of the plurality of conical tubes, a protective cover is fixedly installed on the top of each of the plurality of conical tubes, and a noise reducer is arranged on the top of the protective box near one side edge.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In order to ensure that the humidity of the gas circulating during the operation of the dry-type transformer remains at a relatively stable level, the air pump is first started to extract the gas, and the water vapor in the gas is converted into water droplets through the change of temperature difference to achieve air drying. The dried gas finally enters the inside of the circular groove through the drying tube, and the impact of the air pressure drives the fan to rotate, so that the gas enters the inside of the protective box. Under the impact of the air pressure, multiple lifting balls are driven to move upward along the conical tube, thereby achieving gas drying and circulation, and solving the problem of excessive air humidity affecting the normal operation of the dry-type transformer in the prior art.

[0018] 2. When the external gas enters the cooling box, the water vapor in the gas enters the top of the lifting plate due to the temperature difference, and is squeezed by the water droplets to drive the lifting plate downward, so that multiple springs are squeezed and shortened. When the outer surface of the lifting plate moves downward to the inner wall away from the two limit rods, the water droplets fall along the gap between the lifting plate and the limit rods to the inside of the water tank for collection, thereby preventing the liquefied water source from being retained in the cooling box for a long time and affecting the drying effect of the gas.

[0019] 3. When the air pump drives the air inlet pipe to extract gas into the inlet pipe, the dust in the gas is effectively adsorbed through the setting of multiple filter cloths, so that it is retained on the surface of the filter cloth, thereby achieving gas dust removal. Through the function of the dust removal component, dust is effectively prevented from entering the interior of the dry-type transformer and affecting the normal operation of the dry-type transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front perspective view of a dust-proof and noise-reducing dry-type transformer of the present invention;

[0021] Figure 2 It is a three-dimensional diagram of a transformer working group part of a dust-proof and noise-reducing dry-type transformer of the present invention;

[0022] Figure 3It is a partial three-dimensional diagram of a leakage plate of a dust-proof and noise-reducing dry-type transformer of the present invention;

[0023] Figure 4 A partially cutaway stereoscopic view of a dehumidification component of a dust-proof and noise-reducing dry-type transformer according to the present invention;

[0024] Figure 5 This is a cross-sectional stereoscopic diagram of the fan structure of a dust-proof and noise-reducing dry-type transformer of the present invention;

[0025] Figure 6 It is a partially cutaway stereoscopic view of a cooling box of a dust-proof and noise-reducing dry-type transformer of the present invention;

[0026] Figure 7 It is a three-dimensional diagram of the compression rod part of a dust-proof and noise-reducing dry-type transformer of the present invention;

[0027] Figure 8 It is a partially cutaway stereoscopic view of a hollow block of a dust-proof and noise-reducing dry-type transformer of the present invention;

[0028] Fig. 9 It is a sectional stereoscopic view of the inlet pipe portion of a dust-proof and noise-reducing dry-type transformer of the present invention;

[0029] Fig.10 This is a three-dimensional diagram of the high-voltage compartment of a dust-proof and noise-reducing dry-type transformer of the present invention;

[0030] Fig.11 The present invention is a partially cutaway stereoscopic view of a protective cover of a dust-proof and noise-reducing dry-type transformer.

[0031] In the figure:

[0032] 1. Protective box; 2. Transformer working components; 201. High-voltage coil; 202. Iron core; 203. Low-voltage coil; 204. Insulator; 205. High-voltage connecting wire; 3. Dehumidification components; 301. Installation bin; 302. Leakage plate; 303. Round groove; 304. Installation rod; 305. Limiting shaft; 306. Fan; 307. Installation groove; 308. Air pump; 309. Inlet pipe; 310. Outlet pipe; 311. Cooling box; 312. Semiconductor refrigeration sheet; 313. Drainage plate; 314. Inclined plate; 315. Limiting rod; 316. Lifting plate; 317. Compression rod; 318. Spring; 319. Output pipe; 320. Polymer membrane; 3 21. Hollow block; 322. Forward and reverse motor; 323. Rotating shaft; 324. Sealing block; 325. Connecting pipe; 326. Drying pipe; 327. Mounting box; 328. U-shaped pipe; 329. Water tank; 330. Humidity sensor; 4. Fixing rod; 5. Dust removal assembly; 501. Inlet pipe; 502. Carrying block; 503. Driving motor; 504. Rotating rod; 505. Sealing plate; 506. Connecting frame; 507. Filter cloth; 508. High-pressure chamber; 509. Dust outlet pipe; 510. Solenoid valve; 511. High-pressure pump; 512. Pressure sensor; 6. Drainage assembly; 601. Conical pipe; 602. Lifting ball; 603. Protective cover; 7. Noise reducer. DETAILED DESCRIPTION

[0033] 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 implementation regulations described 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.

[0034] See also Figure 1-11The present invention provides a technical solution: a dust-proof and noise-reducing dry-type transformer, comprising a protective box 1, a transformer working component 2 is arranged inside the protective box 1, a dehumidification component 3 is arranged at the bottom of the protective box 1, the dehumidification component 3 comprises an installation bin 301, a leak plate 302 is fixed between the opposite inner walls of the installation bin 301, an installation groove 307 is opened at the bottom of the installation bin 301, an air pump 308 is arranged near one side edge of the bottom surface of the inner wall of the installation groove 307, an input end of the air pump 308 is fixedly connected with an air inlet pipe 309, an output end of the air pump 308 is fixedly connected with an air outlet pipe 310, a water tank 329 is fixed near the center of the inner bottom surface of the installation groove 307, a cooling box 311 is fixed on the top of the water tank 329, and a cooling box 311 is fixed between the opposite inner walls of the cooling box 311. A semiconductor refrigeration sheet 312 is arranged at the top, a plurality of guide plates 313 are fixed to the inner wall of the cooling box 311, two inclined plates 314 are fixed to the inner bottom surface of the cooling box 311, a limiting rod 315 is fixed to the bottom of the two inclined plates 314, a plurality of anti-compression rods 317 are fixedly installed between the outer surfaces of the two limiting rods 315, a plurality of anti-compression rods 317 are arranged on the top of the plurality of anti-compression rods 317, a spring 318 is arranged on the top of the plurality of anti-compression rods 317, a lifting plate 316 is fixed between the tops of the plurality of springs 318, a U-shaped pipe 328 is fixedly connected to the top of the cooling box 311, a hollow block 321 is fixed to the inner top surface of the mounting groove 307, a circular groove 303 is opened near the center of the inner wall of the mounting bin 301, a mounting rod 304 is fixedly connected between the inner walls of the circular groove 303, and the top of the mounting rod 304 is fixedly connected to the inner wall of the circular groove 303. A limit shaft 305 is fixed, and a fan 306 is rotatably sleeved on the outer surface of the limit shaft 305. A forward and reverse motor 322 is fixedly installed on the bottom of the hollow block 321 by screws. A rotating shaft 323 is fixedly installed on the output shaft of the forward and reverse motor 322. A sealing block 324 is fixedly installed on the outer surface of the rotating shaft 323. A connecting pipe 325 is fixedly connected to the outer surface of one side of the hollow block 321, and a drying pipe 326 is fixedly connected to the outer surface of the other side of the hollow block 321. An installation box 327 is arranged on the inner wall of the drying pipe 326. An output pipe 319 is fixedly connected to the bottom of the U-shaped pipe 328, and a polymer film 320 is fixedly provided inside the output pipe 319. The top of the installation bin 301 is fixedly connected to the bottom of the protective box 1, and one end of the air inlet pipe 309 passes through the installation bin 301. Externally, one end of the air outlet pipe 310 penetrates into the interior of the cooling box 311, the opposite outer surfaces of the lifting plate 316 slide with the outer surfaces of the two limit rods 315 respectively, the top ends of the multiple springs 318 are fixedly connected to the bottom of the lifting plate 316, the bottom ends of the multiple springs 318 are fixedly connected to the tops of the multiple pressure-resistant rods 317 respectively, the bottom end of the output pipe 319 penetrates into the interior of the water tank 329, one end of the U-shaped tube 328 penetrates into the interior of the hollow block 321, the top end of the rotating shaft 323 movably penetrates into the interior of the hollow block 321 to the inner wall, the outer surface of the sealing block 324 is slidably connected with the inner wall of the hollow block 321, the top end of the connecting pipe 325 penetrates into the interior of the circular groove 303, and the top end of the drying pipe 326 penetrates into the interior of the circular groove 303.The transformer working component 2 includes a high-voltage coil 201, a low-voltage coil 203 is arranged inside the high-voltage coil 201, an iron core 202 is arranged on the top of the high-voltage coil 201, and a plurality of insulators 204 are arranged on the outer surface of the high-voltage coil 201. The plurality of insulators 204 form a group of two each, and a high-voltage connecting line 205 is arranged between the outer surfaces of each group of insulators 204. A plurality of drainage components 6 are arranged on the top of the protection box 1, and the plurality of drainage components 6 each include a conical tube 601, and the bottoms of the plurality of conical tubes 601 all penetrate into the interior of the protection box 1. A lifting ball 602 is arranged inside the plurality of conical tubes 601, and a protective sleeve 603 is fixedly installed on the top of the plurality of conical tubes 601. A noise reducer 7 is arranged near one side edge of the top of the protection box 1.

[0035] In this embodiment, during the operation of the dry-type transformer in the wind farm, when the AC power supply is connected to the high-voltage coil 201 of the dry-type transformer, an alternating current is generated. The alternating current passes through the high-voltage coil 201 to form an alternating magnetic field. This magnetic field is generated in the iron core 202, and enables the magnetic field to effectively pass through the low-voltage coil 203 to achieve good magnetic flux coupling. In the low-voltage coil 203, due to the change of the magnetic field, according to the principle of electromagnetic induction, an electromotive force is induced in the low-voltage coil 203 to generate an alternating current. Among them, the main function of the insulator 204 is to provide electrical insulation to prevent current leakage and short circuit. The main function of the high-voltage connecting line 205 is to transmit power between the high-voltage part of the transformer and the external power grid. During the operation of the dry-type transformer, in order to ensure the operation of the dry-type transformer The humidity of the gas circulating during the process is kept at a relatively stable level. First, the air pump 308 is started to drive the air inlet pipe 309 to extract gas from the external environment. The gas enters the interior of the cooling box 311 through the air outlet pipe 309. At this time, the semiconductor refrigeration plate 312 is electrically connected to the external power supply to cool the interior of the cooling box 311. The cold surface of the semiconductor refrigeration plate 312 faces the interior of the cooling box 311. When the gas in the environment enters the cooling box 311, the gas pre-cooling is reduced, so that the water molecules in the gas are pre-cooled and condensed on the inner walls of the plurality of guide plates 313. In the process of gas pre-cooling, the gas loses heat and the temperature decreases. When the temperature drops below the saturated vapor pressure, the water vapor molecules lose kinetic energy and cannot remain in a gaseous state, and then begin to condense into liquid water. Figure 6As shown, the surface of the guide plate 313 is provided with a plurality of arc grooves, the purpose of which is to facilitate the drainage of the water droplets retained on the surface of the guide plate 313 to between the outer surfaces of the two inclined plates 314, and then flow to the top of the lifting plate 316, thereby achieving the purpose of drying the air. When the water droplets move to the top of the lifting plate 316, the lifting plate 316 is driven downward by the squeezing of the water droplets, so that the plurality of springs 318 are squeezed and shortened. When the outer surface of the lifting plate 316 moves downward to the inner wall away from the two limiting rods 315, the water droplets fall along the gap between the lifting plate 316 and the limiting rods 315 to the inside of the water tank 329 for collection, and the dried gas continues to move outward along the U-shaped tube 328, wherein Since the temperature inside the U-shaped tube 328 is higher than the temperature of the cooling box 311, and the U-shaped tube 328 is longer, the low-temperature gas condenses into water droplets due to the temperature change, thereby condensing the water vapor in the gas into water droplets, which are retained on the inner wall of the output pipe 319 and flow to the lowest point of the U-shaped tube 328 under the action of its own gravity, thereby entering the interior of the water tank 329 along the output pipe 319, wherein the setting of the polymer membrane 320 effectively prevents the gas entering the output pipe 319 from flowing back to the interior of the water tank 329, wherein the polymer membrane 320 is hydrophilic, which makes it easier for water molecules to interact with the membrane material, thereby passing through the membrane, and the gas molecules need to diffuse through the pores or chain gaps of the polymer membrane 320. The properties of polymers may cause the diffusion rate of gas molecules to be very low, resulting in the inability of gas to penetrate effectively. The dried gas enters the interior of the hollow block 321 through the U-shaped tube 328, and first passes through the humidity sensor 330 to measure the water content of the gas. The humidity sensor 330 uses the property that the dielectric constant of the material changes with humidity. When the humidity increases, the dielectric material inside the sensor absorbs water, causing its dielectric constant to increase. When the humidity sensor 330 detects that the dryness of the gas has not reached the required value, the forward and reverse motors 322 are started to drive the rotating shaft 323 to rotate, and then drive the sealing block 324 to rotate until the sealing block 324 is rotated to fit tightly with one end of the connecting tube 325, thereby sealing the air inlet end of the connecting tube 325, so that the gas enters the interior of the drying tube 326, and the moisture in the air is absorbed again by the silica gel arranged inside the installation box 327. The dried gas finally enters the interior of the circular groove 303 through the drying tube 326, and drives the fan 306 to rotate under the impact of air pressure. Figure 5As shown, the cross section of the connection between the fan 306 and the limit shaft 305 is T-shaped, the purpose of which is to limit the fan 306 while facilitating its rotation. The dry gas moves upward along the leak plate 302 and enters the interior of the protective box 1 through the rotation of the fan 306. When the humidity sensor 330 detects that the humidity of the gas has reached the standard, the forward and reverse motors 322 are started to drive the sealing block 324 to seal one end of the drying tube 326, so that the gas enters the interior of the circular groove 303 along the connecting pipe 325. When the gas enters the protective box 1, in order to speed up the circulation of gas and take away the heat generated by the dry-type transformer, the plurality of lifting balls 602 are driven to move upward along the tapered tube 601 under the impact of air pressure, so that a certain gap is formed between the lifting balls 602 and the inner wall of the tapered tube 601, and the gas is taken out, thereby realizing the circulation of gas inside the dry-type transformer, thereby realizing the drying and circulation of gas, preventing moisture from affecting the operation of the dry-type transformer, and facilitating the flow of gas, solving the problem in the prior art that excessive air humidity affects the normal operation of the dry-type transformer.

[0036] like Figure 1 , Figure 3-Figure 4 and Figure 9-10 As shown, the outer surface of the installation bin 301 is fixedly connected with a fixing rod 4, and a dust removal assembly 5 is arranged on the top of the fixing rod 4. The dust removal assembly 5 includes an inlet pipe 501, and one end of the air inlet pipe 309 penetrates into the interior of the inlet pipe 501. A bearing block 502 is fixedly provided on the outer surface of the inlet pipe 501, and a driving motor 503 is arranged on the top of the bearing block 502. The output shaft of the driving motor 503 is fixedly connected with a rotating rod 504, and the two ends of the rotating rod 504 are respectively movable and penetrate into the opposite outside of the inlet pipe 501. A sealing plate 505 is fixedly sleeved on the outer surface of the rotating rod 504, and the outer surface of the sealing plate 505 It is rotatably connected to the inner wall of the inlet pipe 501, and multiple connecting frames 506 are fixed on the opposite outer surfaces of the sealing plate 505. Filter cloths 507 are arranged on the inner walls of the multiple connecting frames 506. The bottom of the inlet pipe 501 is fixedly connected to a high-pressure chamber 508, and the bottom of the high-pressure chamber 508 is fixedly connected to a dust outlet pipe 509. A solenoid valve 510 is arranged on the outer surface of the dust outlet pipe 509. A high-pressure pump 511 is arranged on the outer surface of the high-pressure chamber 508 through an auxiliary block. The output end of the high-pressure pump 511 passes through the interior of the high-pressure chamber 508, and a pressure sensor 512 is arranged on the outer surface of the high-pressure chamber 508 near the top.

[0037] In this embodiment, since the dry-type transformer will generate relatively large noise during operation, the noise reducer 7 is provided to further reduce the impact of the noise generated by the dry-type transformer on the surrounding environment. In order to prevent external dust from entering the interior of the dry-type transformer and affecting the normal operation of the dry-type transformer, when the air pump 308 is started, it drives the air intake pipe 309 to draw gas into the interior of the introduction pipe 501, so that the gas pressure difference in the external environment enters the interior of the air intake pipe 309 along the multiple filter cloths 507. Among them, through the provision of multiple filter cloths 507, the dust in the gas is effectively adsorbed and retained on the surface of the filter cloth 507, thereby achieving gas dust removal. When the dust adsorbed on the surface of the multiple filter cloths 507 connected to the air intake pipe 309 is large, the drive motor 503 is started to drive the rotating rod 504 to rotate, thereby driving the sealing plate 505 to rotate, wherein the sealing plate 505 and the inside of the introduction pipe 501 are connected. The contact surface of the wall is made of rubber material and has a strong sealing effect. When the sealing plate 505 rotates 180°, the multiple filter cloths 507 located at the bottom are rotated to the upper part of the sealing plate 505, so that the filter cloth 507 with more dust on the surface is rotated to the lower side of the inlet pipe 501 and connected with the high-pressure chamber 508, and then the high-pressure pump 511 is started to transport gas to the inside of the high-pressure chamber 508, so that the high-pressure chamber 508 is in a high-pressure state. When the pressure sensor 512 detects that the air pressure in the high-pressure chamber 508 reaches the required value, the solenoid valve 510 is opened, so that the gas in the high-pressure chamber 508 flows outward quickly through the dust outlet pipe 509 under the action of the pressure difference, so that the dust retained on the surface of the filter cloth 507 flows outward under the action of the airflow, thereby realizing the cleaning of the filter cloth 507. Through the action of the dust removal component 5, dust is effectively prevented from entering the interior of the dry-type transformer and affecting the normal operation of the dry-type transformer.

[0038] The usage and working principle of this device: During the operation of the dry-type transformer in the wind farm, when the AC power supply is connected to the high-voltage coil 201 of the dry-type transformer, an alternating current is generated. The alternating current passes through the high-voltage coil 201 to form an alternating magnetic field. This magnetic field is generated in the iron core 202, and enables the magnetic field to effectively pass through the low-voltage coil 203 to achieve good magnetic flux coupling. In the low-voltage coil 203, due to the change of the magnetic field, according to the principle of electromagnetic induction, an electromotive force is induced in the low-voltage coil 203 to generate an alternating current. Among them, the main function of the insulator 204 is to provide electrical insulation to prevent current leakage and short circuit. The main function of the high-voltage connecting line 205 is to conduct power between the high-voltage part of the transformer and the external power grid. Transmission, during the operation of the dry-type transformer, in order to ensure that the humidity of the gas circulating during the operation of the dry-type transformer is maintained at a relatively stable level, the air pump 308 is first started to drive the air inlet pipe 309 to extract gas from the external environment, and the gas enters the interior of the cooling box 311 through the air outlet pipe 309. At this time, the semiconductor refrigeration sheet 312 is electrically connected to the external power supply to cool the interior of the cooling box 311, wherein the cold surface of the semiconductor refrigeration sheet 312 faces the interior of the cooling box 311. When the gas in the environment enters the cooling box 311, the pre-cooling temperature of the gas is reduced, so that the water molecules in the gas are pre-cooled and condensed on the inner walls of the multiple guide plates 313, and then flow to the top of the lifting plate 316, thereby achieving the purpose of drying the air. When the water droplets move to the top of the lifting plate 316, the lifting plate 316 is squeezed by the water droplets and moves downward, so that the multiple springs 318 are squeezed and shortened. When the outer surface of the lifting plate 316 moves downward to the inner wall away from the two limit rods 315, the water droplets fall along the gap between the lifting plate 316 and the limit rods 315 to the inside of the water tank 329 for collection. The dried gas continues to move outward along the U-shaped tube 328. Since the temperature inside the U-shaped tube 328 is higher than the temperature of the cooling box 311, the low-temperature gas condenses into water droplets due to the temperature change, thereby condensing the water vapor in the gas into water droplets, which are retained on the inner wall of the output pipe 319 and flow to the lowest point of the U-shaped tube 328 under the action of its own gravity, from The gas passes through the output pipe 319 and enters the water tank 329. The dried gas passes through the U-shaped pipe 328 and enters the hollow block 321. The moisture content of the gas is first measured by the humidity sensor 330. When the humidity sensor 330 detects that the dryness of the gas does not reach the required value, the forward and reverse motors 322 are started to drive the rotating shaft 323 to rotate, and then drive the sealing block 324 to rotate until the sealing block 324 is rotated to fit tightly with one end of the connecting pipe 325, thereby sealing the air inlet end of the connecting pipe 325, so that the gas enters the drying pipe 326. The moisture in the air is absorbed again by the silica gel arranged in the installation box 327. The dried gas finally passes through the drying pipe 326 and enters the inside of the circular groove 303.The blower 306 is driven to rotate under the impact of air pressure. The dry gas moves upward along the leak plate 302 and enters the interior of the protection box 1 through the rotation of the blower 306. When the humidity sensor 330 detects that the humidity of the gas has reached the standard, the forward and reverse motor 322 is started to drive the sealing block 324 to seal one end of the drying tube 326, so that the gas enters the interior of the circular groove 303 along the connecting pipe 325. After the gas enters the interior of the protection box 1, in order to speed up the circulation of the gas and remove the heat generated by the dry-type transformer, the multiple lifting balls 602 are driven along the cone under the impact of air pressure. The tube 601 moves upward, so that the gas passes through a certain gap between the lifting ball 602 and the inner wall of the conical tube 601, and then the gas is taken out. Since the dry-type transformer will generate a large noise during operation, the noise reducer 7 is set to further reduce the impact of the noise generated by the dry-type transformer on the surrounding environment. In order to prevent external dust from entering the interior of the dry-type transformer and affecting the normal operation of the dry-type transformer, when the air pump 308 is started, it drives the air inlet pipe 309 to extract gas into the interior of the introduction pipe 501, so that the gas pressure difference in the external environment is caused to flow along the Multiple filter cloths 507 enter the interior of the air inlet pipe 309. Through the arrangement of multiple filter cloths 507, dust in the gas is effectively adsorbed and retained on the surface of the filter cloths 507. When the surface of the multiple filter cloths 507 connected to the air inlet pipe 309 adsorbs a lot of dust, the drive motor 503 is started to drive the rotating rod 504 to rotate, thereby driving the sealing plate 505 to rotate. Among them, the contact surface between the sealing plate 505 and the inner wall of the inlet pipe 501 is made of rubber material, which has a strong sealing effect. When the sealing plate 505 rotates 180 degrees, the multiple filter cloths 507 located at the bottom rotate. To the upper part of the sealing plate 505, so that the filter cloth 507 with more dust on the surface rotates to the lower side of the introduction pipe 501 and is connected with the high-pressure chamber 508, and then the high-pressure pump 511 is started to transport gas to the inside of the high-pressure chamber 508, so that the high-pressure chamber 508 is in a high-pressure state. When the pressure sensor 512 detects that the air pressure in the high-pressure chamber 508 reaches the required value, the solenoid valve 510 is opened, so that the gas in the high-pressure chamber 508 flows outward quickly through the dust outlet pipe 509 under the action of the pressure difference, so that the dust retained on the surface of the filter cloth 507 flows outward under the action of the airflow.

[0039] The wiring diagram of the air pump 308, semiconductor cooling plate 312, forward and reverse motor 322, humidity sensor 330, drive motor 503, solenoid valve 510, high-pressure pump 511, pressure sensor 512 and noise reducer 7 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. Therefore, the control method and wiring arrangement of the air pump 308, semiconductor cooling plate 312, forward and reverse motor 322, humidity sensor 330, drive motor 503, solenoid valve 510, high-pressure pump 511, pressure sensor 512 and noise reducer 7 will no longer be explained in detail.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust-proof and noise-reducing dry-type transformer, comprising a protective box (1), wherein a transformer working component (2) is arranged inside the protective box (1); Features: A dehumidification component (3) is arranged at the bottom of the protection box (1), and the dehumidification component (3) comprises an installation chamber (301), a leak plate (302) is fixed between the opposite inner walls of the installation chamber (301), a mounting groove (307) is provided at the bottom of the installation chamber (301), an air pump (308) is arranged near one side edge of the bottom surface of the inner wall of the installation groove (307), the input end of the air pump (308) is fixedly connected to an air inlet pipe (309), the output end of the air pump (308) is fixedly connected to an air outlet pipe (310), a water tank (329) is fixed near the center of the inner bottom surface of the installation groove (307), a cooling box (311) is fixed on the top of the water tank (329), and the cooling box (311) is provided with a cooling element (311). A semiconductor refrigeration plate (312) is arranged near the top between the relative inner walls, a plurality of guide plates (313) are fixed to the inner wall of the cooling box (311), two inclined plates (314) are fixed to the inner bottom surface of the cooling box (311), a limiting rod (315) is fixed to the bottom of the two inclined plates (314), a plurality of anti-pressure rods (317) are fixedly installed between the outer surfaces of the two limiting rods (315), a spring (318) is arranged on the top of the plurality of anti-pressure rods (317), a lifting plate (316) is fixed between the top ends of the plurality of springs (318), a U-shaped tube (328) is fixedly connected to the top of the cooling box (311), and a hollow block (321) is fixed to the inner top surface of the mounting groove (307).

2. The dust-proof and noise-reducing dry-type transformer according to claim 1, characterized in that: A circular groove (303) is provided near the center of the inner wall of the installation bin (301); a mounting rod (304) is fixedly connected between the inner walls of the circular groove (303); a limiting shaft (305) is fixed on the top of the installation rod (304); a fan (306) is rotatably sleeved on the outer surface of the limiting shaft (305); and a forward and reverse motor (322) is fixedly installed on the bottom of the hollow block (321) by means of screws.

3. The dust-proof and noise-reducing dry-type transformer according to claim 2 is characterized in that: The output shaft of the forward and reverse motor (322) is fixedly mounted with a rotating shaft (323), the outer surface of the rotating shaft (323) is fixedly mounted with a sealing block (324), one side of the outer surface of the hollow block (321) is fixedly connected with a connecting pipe (325), the other side of the outer surface of the hollow block (321) is fixedly connected with a drying pipe (326), the inner wall of the drying pipe (326) is provided with a mounting box (327), the bottom of the U-shaped tube (328) is fixedly connected with an output tube (319), and a polymer film (320) is fixedly mounted inside the output tube (319).

4. The dust-proof and noise-reducing dry-type transformer according to claim 3 is characterized in that: The top of the installation bin (301) is fixedly connected to the bottom of the protection box (1), one end of the air inlet pipe (309) passes through the outside of the installation bin (301), and one end of the air outlet pipe (310) passes through the inside of the cooling box (311). The opposite outer surfaces of the lifting plate (316) slide on the outer surfaces of the two limit rods (315) respectively, and the top ends of the multiple springs (318) are fixedly connected to the bottom of the lifting plate (316).

5. The dust-proof and noise-reducing dry-type transformer according to claim 4, characterized in that: The bottom ends of the plurality of springs (318) are respectively fixedly connected to the tops of the plurality of pressure-resistant rods (317); the bottom end of the output pipe (319) penetrates into the interior of the water tank (329); one end of the U-shaped pipe (328) penetrates into the interior of the hollow block (321); the top end of the rotating shaft (323) movably penetrates into the interior of the hollow block (321) to the inner wall; the outer surface of the sealing block (324) is slidably connected to the inner wall of the hollow block (321); the top end of the connecting pipe (325) penetrates into the interior of the circular groove (303); and the top end of the drying pipe (326) penetrates into the interior of the circular groove (303).

6. The dust-proof and noise-reducing dry-type transformer according to claim 5, characterized in that: The transformer working component (2) comprises a high-voltage coil (201), a low-voltage coil (203) is arranged inside the high-voltage coil (201), an iron core (202) is arranged on the top of the high-voltage coil (201), and a plurality of insulators (204) are arranged on the outer surface of the high-voltage coil (201), two of the plurality of insulators (204) form a group, and a high-voltage connecting wire (205) is arranged between the outer surfaces of each group of insulators (204).

7. The dust-proof and noise-reducing dry-type transformer according to claim 6, characterized in that: The outer surface of the installation bin (301) is fixedly connected to a fixing rod (4), a dust removal assembly (5) is arranged on the top of the fixing rod (4), the dust removal assembly (5) comprises an inlet pipe (501), one end of the air inlet pipe (309) penetrates into the interior of the inlet pipe (501), a bearing block (502) is fixed to the outer surface of the inlet pipe (501), a driving motor (503) is arranged on the top of the bearing block (502), and the output shaft of the driving motor (503) is fixedly connected to a rotating rod (504).

8. The dust-proof and noise-reducing dry-type transformer according to claim 7, characterized in that: The two ends of the rotating rod (504) are movably connected to the opposite outer sides of the introduction pipe (501); a sealing plate (505) is fixedly sleeved on the outer surface of the rotating rod (504); the outer surface of the sealing plate (505) is rotatably connected to the inner wall of the introduction pipe (501); a plurality of connecting frames (506) are fixedly connected to the opposite outer surfaces of the sealing plate (505); filter cloths (507) are arranged on the inner walls of the plurality of connecting frames (506); the bottom of the introduction pipe (501) is fixedly connected to a high-pressure chamber (508); and the bottom of the high-pressure chamber (508) is fixedly connected to a dust outlet pipe (509).

9. The dust-proof and noise-reducing dry-type transformer according to claim 8, characterized in that: An electromagnetic valve (510) is arranged on the outer surface of the dust outlet pipe (509), a high-pressure pump (511) is arranged on the outer surface of the high-pressure chamber (508) through an auxiliary block, an output end of the high-pressure pump (511) penetrates into the interior of the high-pressure chamber (508), and a pressure sensor (512) is arranged on the outer surface of the high-pressure chamber (508) near the top.

10. The dust-proof and noise-reducing dry-type transformer according to claim 9, characterized in that: A plurality of drainage components (6) are arranged on the top of the protection box (1), each of the plurality of drainage components includes a conical tube (601), the bottoms of the plurality of conical tubes (601) penetrate into the interior of the protection box (1), a lifting ball (602) is arranged inside the plurality of conical tubes (601), a protective sleeve (603) is fixedly installed on the top of the plurality of conical tubes (601), and a noise reducer (7) is arranged on the top of the protection box (1) near one side edge.

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