CN112017844A - Dry-type transformer vibration/noise reduction device - Google Patents

Abstract

The invention discloses a dry-type transformer damping and noise reducing device, which comprises a visual noise reducing shell, a plurality of vibration isolating pieces and a noise eliminating and heat dissipating mechanism, wherein the visual noise reducing shell is provided with a plurality of vibration isolating pieces; the noise elimination and heat dissipation mechanism comprises an air inlet noise reduction device and an air outlet noise reduction device; the vibration isolation piece and the noise elimination and heat dissipation mechanism are both arranged inside the visible noise reduction shell. The visual noise reduction shell can isolate noise emitted by the transformer, and is convenient for people to observe the running condition of the transformer from the outside; the vibration isolation part is used for processing resonance generated by the transformer, so that the vibration isolation function is realized; through the cooperation of the air inlet noise reduction device and the air exhaust noise reduction device, hot air generated by the transformer can be dredged in time, and the fault probability of the transformer is greatly reduced.

Description

Dry-type transformer vibration/noise reduction device

Technical Field

The invention relates to the field of damping and noise reducing equipment, in particular to a damping and noise reducing device of a dry-type transformer.

Background

With the progressive development of society, the power consumption is continuously increased, the load demand of residents is increasingly increased, and a power supply department sets a transformer in each residential district. Noise complaints and disputes occur due to a certain range of noise generated during the operation of the transformer. In the current indoor power distribution station, the noise level of a 10kV dry-type transformer reaches 60-80 dB, the main noise source is electromagnetic noise generated when the transformer operates, and low-frequency noise has a large influence on residents in residential districts. The noise of the low frequency band is different from the noise of the high frequency band, the high frequency noise can be attenuated rapidly along with the distance or when encountering obstacles, for example, a point sound source of the high frequency noise can be reduced by 6dB every 10 meters; the low-frequency noise is attenuated slowly, the sound wave is long, the low-frequency noise can easily pass through the barrier, and the low-frequency noise penetrates through the wall and penetrates through the wall for a long distance and directly enters human ears. At present, the distance between an outdoor power distribution station of a domestic residential district and a residential building is about 5-10 meters, and for low-frequency noise, the purpose of noise elimination cannot be achieved by self attenuation.

At present, a dry-type transformer does not have a special noise reduction device, and the noise reduction method of the common dry-type transformer is to increase the sound insulation capability of a transformer chamber or isolate the transformer in a closed mode. By adopting the method of increasing the sound insulation capability of the transformer chamber, although partial noise generated by the transformer operation can be weakened, the effect is general, the resonance phenomenon can also occur during the transformer operation, the vibration of the transformer unit can be transmitted to a building structure through the ground, and then transmitted to the indoor wall surface of residents through the building structure, and the wall surface vibration causes air vibration to generate noise; although the method of reducing noise by using the isolation transformer can reduce noise or resonance generated by the operation of the transformer, the effect is general, the heat dissipation effect is poor, and the transformer is easy to cause over-high temperature and generate faults in high temperature days.

In the prior art, the invention patent with publication number CN105810408A discloses a vibration and noise reduction device for a dry-type transformer, which adopts a transformer core arranged between an upper limit vibration reduction plate and a lower limit limiting plate, wherein the upper limit limiting plate is provided with a left vibration reduction spring and a right vibration reduction spring, and a vibration reduction air bag is arranged between the lower limit vibration reduction plate and the bottom of a transformer box. The design of the invention patent can realize vibration reduction and noise reduction of the dry type transformer to a certain extent; however, it does not eliminate the resonance phenomenon of the transformer operation, does not solve the problem of noise generated by the transmission through the building structure, and does not consider the heat dissipation problem of the transformer. Therefore, users urgently need a dry-type transformer damping and noise reducing device which integrates vibration isolation and sound insulation and prevents the transformer from being over-high in temperature.

Disclosure of Invention

The invention provides a damping and noise-reducing device for a dry-type transformer, which aims to eliminate the resonance phenomenon generated by the operation of the transformer and solve the noise problem and the heat dissipation problem of the transformer.

The primary objective of the present invention is to solve the above technical problems, and the technical solution of the present invention is as follows:

a dry-type transformer damping and noise reducing device comprises a visual noise reducing shell, a plurality of vibration isolating pieces and a noise elimination and heat dissipation mechanism; the noise elimination and heat dissipation mechanism comprises an air inlet noise reduction device and an air outlet noise reduction device; the vibration isolation piece and the noise elimination and heat dissipation mechanism are both arranged inside the visible noise reduction shell.

In the scheme, the visual noise reduction shell can isolate noise emitted by the transformer and is convenient for people to observe the running condition of the transformer from the outside; the vibration isolation piece is used for processing resonance generated by the transformer and realizing a vibration isolation function; the air inlet noise reduction device and the air exhaust noise reduction device are matched, so that hot air generated by the transformer can be dredged in time, heat is effectively dissipated, and the fault probability of the transformer is reduced.

Preferably, the visual noise reduction shell comprises a plurality of frame bodies, a plurality of stand columns, a plurality of bearing cross beams, a glass door, a first upper opening, a first lower opening, a second upper opening and a second lower opening; wherein, the adjacent frame bodies are connected in a matching way through the upright post; the bearing cross beam is arranged between the upper parts of the opposite frame bodies; the exhaust noise reduction device is arranged on the bearing cross beam; the glass door is arranged at the lower part of the frame body; the first lower opening and the second lower opening are arranged at the bottoms of the two opposite frame bodies and are communicated with the air inlet noise reduction device; the first upper opening and the second upper opening are arranged at the tops of the two opposite frame bodies and are communicated with the exhaust noise reduction device.

In the scheme, the frame body is fixed with the upright post; the bearing beam is used for mounting an exhaust noise reduction device; the glass door is convenient for people to enter the visible noise reduction shell to overhaul the transformer; the external gas enters the air inlet noise reduction device through the first lower opening, is discharged into the visible noise reduction shell through the second lower opening after being processed, enters the air exhaust noise reduction device through the second upper opening, and is discharged out of the visible noise reduction shell through the first upper opening after being processed.

Preferably, the first upper opening, the first lower opening, the second upper opening and the second lower opening are all provided with a filter screen.

In the above scheme, the filter screen can prevent effectively that debris such as dust or mosquito from entering into and admitting air and making an uproar device and exhaust and fall the device of making an uproar, avoids causing the pollution.

Preferably, the rack body is also provided with a plurality of reinforcing ribs; and sound insulation glass is embedded between the reinforcing ribs and the frame body.

In the above scheme, the strengthening rib is used for strengthening the intensity and the rigidity of support body, and noise that soundproof glass can effectively the isolation transformer produced makes things convenient for people to observe the behavior of transformer outside simultaneously.

Preferably, the vibration isolation member comprises a pad, a first through hole group and a second through hole group; the first through hole group is transversely arranged on a pair of opposite side surfaces adjacent to the cushion seat; the second through hole group is transversely arranged on the other pair of opposite side surfaces adjacent to the cushion seat; the height of each row of through holes of the first through hole group and the second through hole group is staggered up and down.

In the above scheme, each row of through holes of the first through hole group and each row of through holes of the second through hole group are not at the same horizontal height and are staggered with each other. The bottom of the transformer is pressed on the vibration isolation component, when resonance generated by the transformer is transmitted to the cushion seat, the cushion seat transmits the resonance to the first through hole group and the second through hole group, air vibration is caused in the first through hole group and the second through hole group, and due to viscous resistance of air, friction and heat conduction between the air and the hole wall can convert part of sound energy into heat energy to be consumed; in addition, by reducing the resonance frequency through layer-by-layer attenuation, the resonance that is ultimately transmitted to the building structure has been greatly attenuated, which fundamentally eliminates the generation of low frequency noise.

Preferably, the vibration isolator is a honeycomb type shock pad.

In the above scheme, the honeycomb type shock pad can effectively play the role of sound insulation and vibration reduction, and the cost performance is extremely high.

Preferably, the air inlet noise reduction device comprises an air inlet channel, and the air inlet channel comprises a left side plate, a right side plate, a plurality of first transverse partition plates, a first longitudinal partition plate, a second longitudinal partition plate, a first baffle plate, a second baffle plate, a third baffle plate, an upper side plate, a lower side plate, a first air inlet and a first air outlet; the first transverse partition plates are staggered with each other and arranged between opposite side surfaces of the left side plate and the right side plate; the first baffle is arranged at the front end of the left side plate and is turned over by 90 degrees clockwise; the second baffle is arranged at the rear end of the left side plate and is turned over by 90 degrees anticlockwise; the first longitudinal partition plate is arranged at the tail end of the first baffle plate and is turned over by 90 degrees anticlockwise; the third baffle is arranged at the front end of the right side plate and is turned over by 90 degrees anticlockwise; the second longitudinal partition plate is arranged at the tail end of the third baffle plate and is turned over by 90 degrees anticlockwise; the upper side plate and the lower side plate are respectively covered and fixed on the upper side and the lower side of the left side plate and the right side plate; the first air inlet is formed between the second longitudinal partition plate and the left side plate and is communicated with the first lower opening; and a first air outlet is formed between the second baffle and the right side plate and is communicated with the second lower opening.

In the scheme, the left side plate and the right side plate are assembled in a staggered mode, so that the first air inlet and the first air outlet can be formed after the assembly is finished, additional opening processing is not needed, the assembly steps are simplified, and the assembly time is saved; the outside air enters the first air inlet from the first lower opening, is processed by the air inlet noise reduction device, and is discharged into the visible noise reduction shell from the first air outlet; in the noise reduction process in the intake noise reduction device: the first transverse partition board is used for blocking noise generated by the transformer, so that the noise cannot be transmitted linearly, and the transmission distance of the noise in the air inlet channel is prolonged, so that the noise is weakened; in addition, multiple collisions and reflections can occur in the noise transmission process, so that the energy of the noise is greatly weakened; moreover, the width of the first transverse partition plate is far larger than the width of the interior of the air inlet channel, so that when noise enters the air inlet channel, the noise can collide with each first transverse partition plate.

Preferably, the exhaust noise reduction device comprises a shell and a shell cover matched with the shell, wherein the shell comprises a middle partition plate, an outer partition plate, a plurality of inner partition plates, a first outer baffle plate, a second air inlet and a second air outlet; the middle partition plate is arranged in the middle of the shell and divides the shell into two chambers which are centrosymmetric; the outer partition plate is arranged in the cavity and is parallel to the middle partition plate, and two ends of the outer partition plate are not in contact with the side wall of the cavity; the first outer baffle is arranged at one end of the outer partition plate and is fixedly connected with the middle partition plate; the second outer baffle plate is arranged at the other end of the outer partition plate, and a gap is reserved between the second outer baffle plate and the middle partition plate; the inner partition plates are staggered with each other and arranged between the opposite side surfaces of the outer partition plate and the middle partition plate; the outer baffle plate, the first outer baffle plate and the second outer baffle plate divide the chamber into an inner exhaust channel and an outer exhaust channel; the second air inlet is arranged on the inner exhaust channel and communicated with the second upper opening; the second air outlet is arranged on the outer exhaust passage and communicated with the first upper opening.

In the above scheme, the gas inside the visual noise reduction shell enters the inner exhaust channel of the exhaust noise reduction device from the second gas inlet, is then transmitted to the outer exhaust channel, is then exhausted from the second gas outlet, and is finally exhausted to the outside through the first upper opening; in the noise reduction process in the exhaust noise reduction device: the inner partition plate is used for blocking noise and preventing the noise from being transmitted linearly, and the transmission distance of the noise in the inner exhaust channel is prolonged, so that the noise is weakened; in addition, in the transmission process of the noise, multiple times of collision and reflection can occur, and the energy of the noise is greatly weakened; moreover, the width of the inner partition plate is far larger than the width of the inner exhaust channel, so that the noise can collide with the inner partition plate of each block when entering the inner exhaust channel.

Preferably, the first air outlet is provided with a first crossflow cooling fan, and the second air inlet is provided with a second crossflow cooling fan.

In the scheme, the first cross flow cooling fan cools the gas in the gas inlet channel, so that the temperature of the transformer is reduced and the heat is dissipated; the second cross flow cooling fan is used for accelerating the emission of hot air, so that the hot air is quickly discharged from the second air outlet, and the heat dissipation speed is improved.

Preferably, a temperature controller is further arranged inside the visual noise reduction shell; the temperature controller is electrically connected with the first cross flow cooling fan and the second cross flow cooling fan.

In the above scheme, the temperature controller is used for monitoring the temperature change of the internal space of the visible noise reduction shell in real time, and controlling the gear change of the first cross flow cooling fan and the second cross flow cooling fan based on the temperature change condition, so that intelligent control is realized.

Compared with the prior art, the technical scheme of the invention has the beneficial effects that:

the visual noise reduction shell can isolate noise emitted by the transformer, and is convenient for people to observe the running condition of the transformer from the outside; the vibration isolation part is used for processing resonance generated by the transformer, so that the vibration isolation function is realized; through the cooperation of the air inlet noise reduction device and the air exhaust noise reduction device, hot air generated by the transformer can be dredged in time, and the fault probability of the transformer is greatly reduced.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is an exploded view of the intake noise reducer of the present invention;

FIG. 4 is an exploded view of the exhaust noise reducer of the present invention;

fig. 5 is a schematic structural view of the vibration insulator according to the present invention.

Wherein the reference numbers in the figures represent respectively: 1 a visual noise reduction housing; 2 vibration isolation parts; 3, an air inlet noise reduction device; 4 exhausting and noise reducing device; 101, a frame body; 102 upright posts; 103 a load bearing beam; 104 a glass door; 105 a first upper opening; 106 a first lower opening; 107 second upper opening; 108 a second lower opening; 109 a filter screen; 110 reinforcing ribs; 111 sound-proof glass; 112 a temperature controller; 201 a cushion seat; 202 a first group of through holes; 203 a second set of through holes; 301 left side plate; 302 right side panel; 303 a first transverse partition; 304 a first longitudinal partition; 305 a second longitudinal partition; 306 a first baffle; 307 a second baffle; 308 a third baffle; 309 an upper side plate; 310 a lower side plate; 311 a first air inlet; 312 a first air outlet; 313 a first cross flow cooling fan; 401 casing covers; 402 a middle partition plate; 403 outer spacer plate; 404 an inner partition; 405 a first outer baffle; 406 a second outer baffle; 407 a second gas inlet; 408a second air outlet; 409 second crossflow cooling blower.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Example 1

As shown in fig. 1 and 2, a dry-type transformer damping and noise reducing device includes a visible noise reducing housing 1, a plurality of vibration isolators 2 and a noise elimination and heat dissipation mechanism; the noise elimination and heat dissipation mechanism comprises an air inlet noise reduction device 3 and an air outlet noise reduction device 4; the vibration isolation part 2 and the noise elimination and heat dissipation mechanism are both arranged inside the visible noise reduction shell 1.

In the scheme, the visual noise reduction shell 1 can isolate noise emitted by the transformer and is convenient for people to observe the running condition of the transformer from the outside; the vibration isolation piece 2 is used for processing resonance generated by the transformer and realizing a vibration isolation function; the air inlet noise reduction device 3 is matched with the air exhaust noise reduction device 4, so that hot air generated by the transformer can be dredged in time, heat is effectively dissipated, and the fault probability of the transformer is reduced.

Specifically, the visual noise reduction housing 1 includes a plurality of frame bodies 101, a plurality of upright posts 102, a plurality of load-bearing cross beams 103, a glass door 104, a first upper opening 105, a first lower opening 106, a second upper opening 107 and a second lower opening 108; wherein, the adjacent frame bodies 101 are connected in a matching way through the upright posts 102; the bearing cross beam 103 is arranged between the upper parts of the opposite frame bodies 101; the exhaust noise reduction device 4 is arranged on the bearing cross beam 103; the glass door 104 is arranged at the lower part of the frame body 101; the first lower opening 106 and the second lower opening 108 are arranged at the bottoms of the two opposite frame bodies 101 and are communicated with the air inlet noise reduction device 3; the first upper opening 105 and the second upper opening 107 are disposed at the top of the two opposite frame bodies 101 and are communicated with the exhaust noise reduction device 4.

In the above scheme, the frame body 101 is fixed with the upright post 102; the bearing cross beam 103 is used for mounting the exhaust noise reduction device 4; the glass door 104 is convenient for people to enter the visible noise reduction shell 1 to overhaul the transformer; the outside air enters the air inlet noise reduction device through the first lower opening 106, is discharged into the visible noise reduction shell 1 through the second lower opening 108 after being processed, enters the air outlet noise reduction device through the second upper opening 107, and is discharged out of the visible noise reduction shell 1 through the first upper opening 105 after being processed.

Specifically, a filter screen 109 is disposed on each of the first upper opening 105, the first lower opening 106, the second upper opening 107 and the second lower opening 108.

In the above scheme, the filter screen 109 can effectively prevent impurities such as dust or mosquitoes from entering the air intake noise reduction device 3 and the exhaust noise reduction device 4, and pollution is avoided.

Specifically, the frame body 101 is further provided with a plurality of reinforcing ribs 110; sound-proof glass 111 is embedded between the reinforcing ribs 110 and the frame body 101.

In the above scheme, the reinforcing ribs 110 are used for enhancing the strength and rigidity of the frame body 101, and the sound insulation glass 111 can effectively isolate noise generated by the transformer and facilitate people to observe the running condition of the transformer outside.

As shown in fig. 5, specifically, the vibration isolator 2 includes a pad 201, a first through hole set 202 and a second through hole set 203, which are all disposed inside the visual noise reduction housing 1; wherein, the first through hole group 202 is transversely arranged on a pair of opposite side surfaces adjacent to the cushion seat 201; the second through hole group 203 is transversely arranged on the other pair of opposite side surfaces adjacent to the cushion seat 201; the heights of the through holes in each row of the first through hole group 202 and the second through hole group 203 are staggered up and down.

In the above scheme, each row of through holes of the first through hole group and each row of through holes of the second through hole group are not at the same horizontal height and are staggered with each other. The bottom of the transformer is pressed on the vibration isolation component 2, when the resonance generated by the transformer is transmitted to the cushion seat 201, the cushion seat 201 transmits the resonance to the first through hole group 202 and the second through hole group 203, and causes air vibration in the first through hole group 202 and the second through hole group 203, and because the air has viscous resistance, the friction and the heat conduction between the air and the hole wall can convert part of sound energy into heat energy to be consumed; in addition, by reducing the resonance frequency through layer-by-layer attenuation, the resonance that is ultimately transmitted to the building structure has been greatly attenuated, which fundamentally eliminates the generation of low frequency noise.

Specifically, the vibration insulator 2 is a honeycomb type vibration damper.

In the above scheme, the honeycomb type shock pad can effectively play the role of sound insulation and vibration reduction, and the cost performance is extremely high.

As shown in fig. 3, specifically, the air intake noise reduction device 3 includes an air intake channel, the air intake channel includes a left side plate 301, a right side plate 302, a plurality of first transverse partition plates 303, a first longitudinal partition plate 304, a second longitudinal partition plate 305, a first baffle 306, a second baffle 307, a third baffle 308, an upper side plate 309, a lower side plate 310, a first air inlet 311, and a first air outlet 312, all of which are disposed inside the visual noise reduction housing 1; the first transverse partition plates 303 are staggered with each other and arranged between opposite side surfaces of the left side plate 301 and the right side plate 302; the first baffle 306 is arranged at the front end of the left side plate 301 and is turned over clockwise by 90 degrees; the second baffle 307 is arranged at the rear end of the left side plate 301 and is turned over by 90 degrees anticlockwise; the first longitudinal partition 304 is arranged at the tail end of the first baffle 306 and is turned over by 90 degrees anticlockwise; the third baffle 308 is arranged at the front end of the right side plate 302 and is turned over 90 degrees anticlockwise; the second longitudinal partition 305 is arranged at the end of the third baffle 308 and is turned over 90 degrees counterclockwise; the upper side plate 309 and the lower side plate 310 are respectively fixed on the upper side and the lower side of the left side plate 301 and the right side plate 302 in a covering manner; the first air inlet 311 is formed between the second longitudinal partition 305 and the left side plate 301, and is communicated with the first lower opening 106; the second baffle 307 forms a first air outlet 312 with the right side plate 302, and communicates with the second lower opening 108.

In the above scheme, the left side plate 301 and the right side plate 302 are assembled in a staggered manner, so that the first air inlet 311 and the first air outlet 312 can be formed after the assembly is completed, no additional opening treatment is needed, the assembly steps are simplified, and the assembly time is saved; the outside air enters the first air inlet 311 from the first lower opening 106, is processed by the air inlet noise reduction device 3, and is discharged to the interior 1 of the visible noise reduction shell from the first air outlet 312; in the noise reduction process in the intake noise reduction device 3: the first transverse partition plate 303 is used for blocking noise generated by the transformer from being transmitted linearly, and reducing the noise by prolonging the transmission distance of the noise in the air inlet channel; in addition, multiple collisions and reflections can occur in the noise transmission process, so that the energy of the noise is greatly weakened; furthermore, the width of the first transverse partition 303 is much larger than the internal width of the intake passage, so that noise can collide with each first transverse partition 303 when entering the intake passage.

As shown in fig. 4, specifically, the exhaust noise reduction device 4 includes a casing and a casing cover 401 adapted to the casing, where the casing includes a middle partition 402, an outer partition 403, a plurality of inner partitions 404, a first outer baffle 405, a second outer baffle 406, a second air inlet 407, and a second air outlet 408; the middle partition plate 402 is arranged in the middle of the shell and divides the shell into two chambers which are centrosymmetric; the outer partition 403 is arranged in the chamber and parallel to the middle partition 402, and two ends of the outer partition 403 are not in contact with the side wall of the chamber; the first outer baffle 405 is arranged at one end of the outer partition 403 and is fixedly connected with the middle partition 402; the second outer baffle 406 is arranged at the other end of the outer partition 403, and a gap is reserved between the second outer baffle and the middle partition 402; the inner baffles 404 are staggered with each other and arranged between the opposite side surfaces of the outer baffle 403 and the middle baffle 402; the outer baffle 403, the first outer baffle 405 and the second outer baffle 406 divide the chamber into an inner exhaust channel and an outer exhaust channel; the second air inlet 407 is arranged on the inner exhaust channel and is communicated with the second upper opening 107; the second air outlet 408 is disposed on the outer exhaust channel and is communicated with the first upper opening 105.

In the above scheme, the gas inside the visual noise reduction housing 1 enters the inner exhaust channel of the exhaust noise reduction device 4 from the second gas inlet 407, is then transferred to the outer exhaust channel, is then exhausted from the second gas outlet 408, and is finally exhausted to the outside through the first upper opening 105; in the noise reduction process in the exhaust noise reduction device 4: the inner partition 404 is used to block noise from propagating straight, and to reduce noise by extending the transmission distance of noise in the inner exhaust passage; in addition, in the transmission process of the noise, multiple times of collision and reflection can occur, and the energy of the noise is greatly weakened; furthermore, the width of the inner partition 404 is much greater than the inner width of the inner exhaust channel, ensuring that noise will collide with the inner partition 404 of each block when entering the inner exhaust channel.

Specifically, a first cross flow cooling fan 313 is installed on the first air outlet 312, and a second cross flow cooling fan 409 is installed on the second air inlet 407.

In the above scheme, the first cross flow cooling fan 313 cools the gas in the inlet channel, so as to cool and dissipate the heat of the transformer; the second cross flow cooling fan 409 is used for accelerating the emission of hot air, so that the hot air is rapidly discharged from the second air outlet 408, and the heat radiation speed is increased.

Specifically, a temperature controller 112 is further disposed inside the visual noise reduction housing 1; the temperature controller 112 is electrically connected to both the first cross flow cooling fan 313 and the second cross flow cooling fan 409.

In the above scheme, the temperature controller 112 is configured to monitor a temperature change of an internal space of the visual noise reduction enclosure 1 in real time, and control gear changes of the first cross flow cooling fan 313 and the second cross flow cooling fan 409 based on a temperature change condition, so as to implement intelligent control.

The same or similar reference numerals correspond to the same or similar parts;

the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;

it should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A dry-type transformer damping and noise reduction device is characterized by comprising a visual noise reduction shell (1), a plurality of vibration isolation pieces (2) and a noise elimination and heat dissipation mechanism; the noise elimination and heat dissipation mechanism comprises an air inlet noise reduction device (3) and an exhaust noise reduction device (4); the vibration isolation piece (2) and the noise elimination and heat dissipation mechanism are both arranged inside the visual noise reduction shell (1).

2. A dry-type transformer damping and noise reducing device according to claim 1, wherein the visual noise reducing housing (1) comprises a plurality of frame bodies (101), a plurality of columns (102), a plurality of bearing beams (103), a glass door (104), a first upper opening (105), a first lower opening (106), a second upper opening (107) and a second lower opening (108); wherein, the adjacent frame bodies (101) are connected in a matching way through the upright posts (102); the bearing cross beam (103) is arranged between the upper parts of the opposite frame bodies (101); the exhaust noise reduction device (4) is arranged on the bearing cross beam (103); the glass door (104) is arranged at the lower part of the frame body (101); the first lower opening (106) and the second lower opening (108) are arranged at the bottoms of the two opposite frame bodies (101) and are communicated with the air inlet noise reduction device (3); the first upper opening (105) and the second upper opening (107) are arranged at the tops of the two opposite frame bodies (101) and are communicated with the exhaust noise reduction device (4).

3. A dry-type transformer damping and noise reducing device according to claim 2, characterized in that the first upper opening (105), the first lower opening (106), the second upper opening (107) and the second lower opening (108) are all provided with a screen (109).

4. A dry-type transformer damping and noise reducing device according to claim 2, wherein a plurality of reinforcing ribs (110) are further provided on the frame body (101); and sound insulation glass (111) is embedded between the reinforcing ribs (110) and the frame body (101).

5. A dry-type transformer damping and noise reducing device according to claim 1, characterized in that the vibration isolation member (2) comprises a pad (201), a first through hole group (202) and a second through hole group (203); wherein the first through hole group (202) is transversely arranged on a pair of opposite side surfaces adjacent to the cushion seat (201); the second through hole group (203) is transversely arranged on the other pair of opposite side surfaces adjacent to the cushion seat (201); the heights of the through holes in each row of the first through hole group (202) and the second through hole group (203) are staggered up and down.

6. A dry-type transformer damping and noise reducing device according to claim 1, characterized in that the vibration isolator (2) is a honeycomb type damping pad.

7. A dry-type transformer damping and noise reducing device according to claim 2, characterized in that the air inlet noise reducing device (3) comprises an air inlet channel, the air inlet channel comprises a left side plate (301), a right side plate (302), a plurality of first transverse partition plates (303), a first longitudinal partition plate (304), a second longitudinal partition plate (305), a first baffle plate (306), a second baffle plate (307), a third baffle plate (308), an upper side plate (309), a lower side plate (310), a first air inlet (311) and a first air outlet (312); the first transverse partition plates (303) are staggered with each other and arranged between opposite side surfaces of the left side plate (301) and the right side plate (302); the first baffle (306) is arranged at the front end of the left side plate (301) and is turned over by 90 degrees clockwise; the second baffle (307) is arranged at the rear end of the left side plate (301) and is turned over by 90 degrees anticlockwise; the first longitudinal partition plate (304) is arranged at the tail end of the first baffle plate (306) and is turned over by 90 degrees anticlockwise; the third baffle (308) is arranged at the front end of the right side plate (302) and is turned over by 90 degrees anticlockwise; the second longitudinal partition (305) is arranged at the tail end of the third baffle (308) and is turned over by 90 degrees anticlockwise; the upper side plate (309) and the lower side plate (310) are respectively fixed on the upper side and the lower side of the left side plate (301) and the right side plate (302) in a covering manner; the second longitudinal partition (305) and the left side plate (301) form the first air inlet (311) and are communicated with the first lower opening (106); a first air outlet (312) is formed between the second baffle (307) and the right side plate (302) and is communicated with the second lower opening (108).

8. A dry-type transformer damping and noise reducing device according to claim 7, characterized in that the exhaust noise reducing device (4) comprises a housing and a housing cover (401) adapted to the housing, the housing comprises a middle partition (402), an outer partition (403), a plurality of inner partitions (404), a first outer baffle (405), a second outer baffle (406), a second air inlet (407) and a second air outlet (408); the middle partition plate (402) is arranged in the middle of the shell and divides the shell into two chambers which are centrosymmetric; the outer partition plate (403) is arranged in the chamber and is parallel to the middle partition plate (402), and two ends of the outer partition plate (403) are not in contact with the side wall of the chamber; the first outer baffle (405) is arranged at one end of the outer partition plate (403) and is fixedly connected with the middle partition plate (402); the second outer baffle (406) is arranged at the other end of the outer partition plate (403), and a gap is reserved between the second outer baffle and the middle partition plate (402); the inner partition plates (404) are staggered with each other and arranged between the opposite side surfaces of the outer partition plate (403) and the middle partition plate (402); the outer baffle plate (403), the first outer baffle plate (405) and the second outer baffle plate (406) divide the chamber into an inner exhaust channel and an outer exhaust channel; the second air inlet (407) is arranged on the inner exhaust channel and is communicated with the second upper opening (107); the second air outlet (408) is arranged on the outer exhaust channel and is communicated with the first upper opening (105).

9. A dry-type transformer damping and noise reducing device according to claim 8, characterized in that the first cross flow cooling fan (313) is installed on the first air outlet (312), and the second cross flow cooling fan (409) is installed on the second air inlet (407).

10. A dry-type transformer damping and noise reducing device according to claim 1, characterized in that a temperature controller (112) is further arranged inside the visible noise reducing housing (1); the temperature controller (112) is electrically connected to both the first crossflow cooling blower (313) and the second crossflow cooling blower (409).

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