CN111834091B - Dustproof noise reduction dry-type transformer - Google Patents
Dustproof noise reduction dry-type transformer Download PDFInfo
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- CN111834091B CN111834091B CN202010717369.XA CN202010717369A CN111834091B CN 111834091 B CN111834091 B CN 111834091B CN 202010717369 A CN202010717369 A CN 202010717369A CN 111834091 B CN111834091 B CN 111834091B
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- type transformer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/28—Selection of materials for use as drying agents
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/33—Arrangements for noise damping
Abstract
The invention discloses a dustproof noise reduction dry type transformer which comprises a dry type transformer body, a dry type transformer shell, a water tank, an air pump, a drying pipe and a wind shield, wherein air is pumped to the outside through the air pump and circulated with air in the dry type transformer shell so as to cool the inside of the dry type transformer shell, the air outside is pumped into the water tank under the action of the air pump, dust in the air is trapped in water of the water tank to be precipitated, the effect of filtering the dust in the air is achieved, the air continuously flows and then enters the drying pipe, and the air enters the inside of the dry type transformer shell after being dried, so that the problem that the service life is influenced due to the high ambient humidity of the dry type transformer body is avoided.
Description
Technical Field
The invention belongs to the technical field of voltage devices, and particularly relates to a dustproof noise reduction dry-type transformer.
Background
The dry-type transformer is a transformer with iron cores and windings not immersed in insulating oil, and is widely used in places such as local illumination, high-rise buildings, airports, wharf mechanical equipment and the like, and as the world economy develops, the dry-type transformer rapidly develops worldwide, and particularly in distribution transformers, the proportion of the dry-type transformer is increased.
The safe operation of the dry-type transformer and the service life of the dry-type transformer depend on the safe reliability of the insulation of the transformer winding to a great extent, and the fact that the winding temperature exceeds the insulation tolerance temperature causes insulation damage is one of main reasons for the failure of the transformer to work normally, so that the heat dissipation and the temperature reduction of the transformer are very important in time. At present, the heat dissipation of the dry-type transformer is mainly carried out in a natural air cooling and forced air cooling mode, so that a plurality of ventilation holes are formed in the shell of the transformer for cold and heat exchange of air, more dust is often contained in the air, and the dust is easily adsorbed on the winding after entering the inside of the transformer along with the air, so that the temperature of the winding is difficult to dissipate, and the transformer can be cooled only in a forced air cooling mode. When the forced air is cooled, the transformer is in overload operation, so that the load loss and the impedance voltage are greatly increased, the energy consumption is larger, and the heat dissipation problem of the transformer cannot be fundamentally solved. Secondly, the transformer can produce comparatively big noise when the work, if the transformer is installed in the room will be great influence indoor environment's comfort level.
Accordingly, there is a need for a dust-proof noise-reducing dry-type transformer that can prevent dust and moisture from entering the inside of a transformer case and reduce the outward transmission of noise generated inside the transformer case.
Disclosure of Invention
The object of the present invention is to solve at least the above drawbacks and to provide advantages to be described later.
Another object of the present invention is to provide a dustproof noise reduction dry type transformer capable of preventing dust from entering the inside of the transformer.
It is still another object of the present invention to provide a dustproof noise reduction dry type transformer capable of reducing noise from being transmitted to the outside while operating, thereby interfering with the external environment.
To achieve these objects and other advantages and in accordance with the purpose of the invention, there is now provided a dustproof noise reduction dry type transformer comprising:
a dry-type transformer body.
A dry-type transformer housing having a space accommodating the dry-type transformer body for protecting the dry-type transformer body; the bottom of any side of the dry-type transformer shell is provided with a concave part; the side part of the dry-type transformer shell is provided with an air outlet near the top, and the side part of the dry-type transformer shell is provided with an air inlet near the bottom or the middle.
The water tank is clamped in the concave part, the top of the water tank is tightly attached to the bottom of the concave part, and an air vent is arranged at the same position of the top of the water tank and the bottom of the concave part so as to communicate the water tank with the inside of the dry-type transformer shell.
The air pump is arranged in the dry-type transformer shell and is communicated to an air inlet of the dry-type transformer shell through an air inlet pipe so as to extract external air; the air pump is communicated into the water tank through a plurality of air outlet tubules and stretches into water, and after bending, the air pump continues to stretch in the water.
One end of the drying pipe is communicated with the air vent, and the other end of the drying pipe spirally extends inside the dry-type transformer shell and forms a body facing the dry-type transformer; the drying pipes are arranged in a plurality of ways and all surround the air pump so as to wrap the air pump.
The wind shields comprise a plurality of first wind shields covered on the air outlet and a plurality of second wind shields covered on the air inlet; the upper sides of the first wind shields are connected to the outer side wall of the dry-type transformer shell in parallel through a rotating shaft; when the air in the dry-type transformer shell is discharged from the air outlet, the air blows the first wind shields and then is discharged outwards through gaps among the first wind shields; when no air is discharged from the air outlet, the first wind shield sags downwards under the action of gravity so as to cover the air outlet; the upper sides of the second wind shields are connected on the inner side wall of the dry-type transformer shell in parallel through a rotating shaft; when the air pump pumps air, the second wind shield is sucked under the action of air pressure, and a ventilation gap is formed between the second baffles; when the air pump stops exhausting, the second baffle plate sags downwards under the action of gravity so as to cover the air inlet.
In the above scheme, firstly, when the temperature in the dry-type transformer shell is higher, the air pump is opened, so that a ventilation gap is formed between the second baffles, and external air is extracted; outside air is discharged into the water tank through the air outlet tubule, along with the continuous outwards extraction air of air pump, the atmospheric pressure in the water tank grow, the air on water tank upper portion is discharged in the drier from the air vent, blow the inside of dry-type transformer casing again, along with the inside air of transformer casing increases, unnecessary gas blows up first baffle and forms the gap, with the outside discharge in the air follow gap in the dry-type transformer casing, the circulation of air has been formed with the exhaust of constantly breathing in, cool down to the inside dry-type transformer casing through the circulation of air.
Secondly, the outside air is pumped into the water tank, dust in the air is trapped in water in the water tank to be precipitated, the rest clean air flows to the upper part of the water tank, and as the air in the upper part of the water tank is continuously increased, the air flows into the drying pipe from the air vent, and the air continuously contacts with the drying agent in the drying pipe in the process of flowing in the drying pipe, wherein moisture is adsorbed by the drying agent, so that the air finally flowing into the dry-type transformer shell is dried.
Besides, the dry type transformer shell is in a sealed state except for the air inlet and the air outlet, and noise generated when the dry type transformer body operates and noise generated when the air pump operates are mainly transmitted outwards from the air inlet and the air outlet. Firstly, a drying pipe is coiled around the air pump, and when the noise of the air pump is transmitted outwards, the noise is interfered by the drying pipe to be reflected, so that the noise transmitted outwards is reduced; when the noise propagates to the air outlet or the air inlet, and when the wind shield is in a sagging state, the wind shield reflects the noise into the dry-type transformer shell so as to reduce the noise from propagating outwards; when the wind shields are blown up or sucked to incline so that gaps exist between the wind shields, most of noise is blocked by a plurality of wind shields and reflected to the inside of the dry-type transformer shell to be weakened gradually when the noise is transmitted outwards, and further the noise is reduced from transmitting outwards.
Preferably, the drying duct is filled with a water-absorbing desiccant to absorb moisture from the air entering the transformer housing from the vent.
Preferably, the surface of the dry-type transformer body is further covered with a wire mesh, the wire mesh is formed by spirally interlacing the wire filaments, gaps of not less than 1 cm are formed between the wire filaments so that the wire mesh can be ventilated, and the farther the wire mesh is away from the gap of the dry-type transformer body, the larger the wire mesh is.
In the scheme, the wire mesh is covered on the surface of the dry-type transformer body, so that the heat emitted by the dry-type transformer body can be quickly absorbed; simultaneously, the staggered wire mesh of spiraling can be with the even dispersion of dry pipe spun gas to the even heat of taking away on the wire mesh of being convenient for, and then to dry-type transformer body cooling. Secondly, the wire mesh is gradually diluted outwards from the surface of the dry-type transformer body, so that metal far away from the surface of the dry-type transformer body can dissipate heat faster, and heat close to the surface of the dry-type transformer body is continuously dissipated outwards along the wire mesh, so that the dry-type transformer body can be cooled more rapidly.
Preferably, the surface of one side of the first wind deflector and the second wind deflector facing the dry-type transformer body is covered with mineral wool, so that not only can tightness between the wind deflectors be improved, but also noise absorption be improved.
Preferably, a dry ice chamber is further arranged in the dry type transformer shell, and the dry ice chamber is arranged at the bottom of the dry type transformer shell and at a position right below the dry type transformer body; and a nozzle is arranged on one side of the dry ice chamber, which faces the dry-type transformer body, and is provided with a control switch for controlling the opening and closing of the nozzle.
In the scheme, the dry ice is released to absorb heat in the dry type transformer shell when sublimating, so that the dry type transformer shell can be cooled more quickly; and the nozzle faces the dry-type transformer body so as to directly cool the surface of the dry-type transformer body.
Preferably, a temperature sensor is further disposed in the dry-type transformer housing to sense an ambient temperature between the dry-type transformer housing and the dry-type transformer body. The temperature sensor is in communication connection with a switch and a control switch of the air pump. Wherein the switch of the air pump is configured to: when the temperature is higher than a first temperature value, a switch of the air pump is controlled to be turned on; when the temperature is lower than a first temperature value, a switch of the air pump is controlled to be turned off; the control switch is configured to: when the temperature is higher than a second temperature value, the control switch opens the nozzle to spray dry ice to the dry type transformer body; when the temperature is lower than a second temperature value, the control switch closes the nozzle to close the dry ice chamber.
In the scheme, the temperature sensor is arranged in the dry-type transformer shell to monitor the temperature in the dry-type transformer shell in real time, so that a cooling mode is selected according to the temperature; and the air pump is configured so that when the temperature in the dry type transformer shell rises, but is only higher than the normal temperature by 30-50 ℃, the switch of the air pump is controlled to be turned on so as to suck external air into the water tank, the air pressure in the water tank is increased along with the continuous outward air pumping of the air pump, the air at the upper part of the water tank is discharged from the air vent to the drying pipe and then blown into the dry type transformer shell, the redundant air blows the first baffle to form a gap along with the increase of the air in the dry type transformer shell, the air in the dry type transformer shell is discharged outwards from the gap, the continuous air suction and the continuous air discharge form air circulation, and the air circulation is used for cooling the inside of the dry type transformer shell. When the temperature in the dry-type transformer shell is higher than the normal temperature by more than 50 ℃, on the basis of cooling by using an air circulation mode, the dry ice is sprayed to the dry-type transformer body to carry out intensified cooling so as to quickly realize the cooling of the dry-type transformer.
Preferably, in the dustproof noise reduction dry-type transformer, a gas dispersing device is arranged at one end of the drying pipe, facing the dry-type transformer body, of the drying pipe, the gas dispersing device is vertically arranged at the side part of the dry-type transformer body, the length of the gas dispersing device is identical to the height of the dry-type transformer body, gas spraying holes are uniformly distributed in one surface of the gas dispersing device, facing the dry-type transformer body, of the gas dispersing device, the inside of the gas dispersing device is of a hollow structure, and gas of the drying pipe is sprayed out of the gas spraying holes after passing through the hollow structure.
In the above-mentioned scheme, in order to make dry pipe spun gas can cover the side of dry-type transformer body completely, set up with the equal gas dispersion devices of dry-type transformer body, gas is spouted through gas dispersion devices's fumarole, sprays the lateral part to the dry-type transformer body, and gas flows along the surface of dry-type transformer body, and then takes away the heat.
The invention has the advantages that:
firstly, when the temperature in the dry-type transformer shell is higher, the air pump is opened, so that a ventilation gap is formed between the second baffles to extract external air; outside air is discharged into the water tank through the air outlet tubule, along with the continuous outwards extraction air of air pump, the atmospheric pressure in the water tank grow, the air on water tank upper portion is discharged in the drier from the air vent, blow the inside of dry-type transformer casing again, along with the inside air of transformer casing increases, unnecessary gas blows up first baffle and forms the gap, with the outside discharge in the air follow gap in the dry-type transformer casing, the circulation of air has been formed with the exhaust of constantly breathing in, cool down to the inside dry-type transformer casing through the circulation of air.
Secondly, the outside air is pumped into the water tank, dust in the air is trapped in water in the water tank to be precipitated, the rest clean air flows to the upper part of the water tank, and as the air in the upper part of the water tank is continuously increased, the air flows into the drying pipe from the air vent, and the air continuously contacts with the drying agent in the drying pipe in the process of flowing in the drying pipe, wherein moisture is adsorbed by the drying agent, so that the air finally flowing into the dry-type transformer shell is dried.
Then, the dry type transformer housing is in a sealed state except for the air inlet and the air outlet, and noise generated when the dry type transformer body operates and noise generated when the air pump operates are mainly transmitted outwards from the air inlet and the air outlet. Firstly, a drying pipe is coiled around the air pump, and when the noise of the air pump is transmitted outwards, the noise is interfered by the drying pipe to be reflected, so that the noise transmitted outwards is reduced; when the noise propagates to the air outlet or the air inlet, and when the wind shield is in a sagging state, the wind shield reflects the noise into the dry-type transformer shell so as to reduce the noise from propagating outwards; when the wind shields are blown up or sucked to incline so that gaps exist between the wind shields, most of noise is blocked by a plurality of wind shields and reflected to the inside of the dry-type transformer shell to be weakened gradually when the noise is transmitted outwards, and further the noise is reduced from transmitting outwards.
Furthermore, the wire mesh is covered on the surface of the dry-type transformer body, so that the heat emitted by the dry-type transformer body can be quickly absorbed; simultaneously, the staggered wire mesh of spiraling can be with the even dispersion of dry pipe spun gas to the even heat of taking away on the wire mesh of being convenient for, and then to dry-type transformer body cooling. Secondly, the wire mesh is gradually diluted outwards from the surface of the dry-type transformer body, so that metal far away from the surface of the dry-type transformer body can dissipate heat faster, and heat close to the surface of the dry-type transformer body is continuously dissipated outwards along the wire mesh, so that the dry-type transformer body can be cooled more rapidly.
In addition, the heat in the dry-type transformer shell is absorbed when the dry ice is released for sublimation, so that the temperature in the dry-type transformer shell can be lowered more quickly; and the nozzle faces the dry-type transformer body so as to directly cool the surface of the dry-type transformer body.
In addition, a temperature sensor is arranged in the dry type transformer shell to monitor the temperature in the dry type transformer shell in real time, so that a cooling mode is selected according to the temperature; and the air pump is configured so that when the temperature in the dry type transformer shell rises, but is only higher than the normal temperature by 30-50 ℃, the switch of the air pump is controlled to be turned on so as to suck external air into the water tank, the air pressure in the water tank is increased along with the continuous outward air pumping of the air pump, the air at the upper part of the water tank is discharged from the air vent to the drying pipe and then blown into the dry type transformer shell, the redundant air blows the first baffle to form a gap along with the increase of the air in the dry type transformer shell, the air in the dry type transformer shell is discharged outwards from the gap, the continuous air suction and the continuous air discharge form air circulation, and the air circulation is used for cooling the inside of the dry type transformer shell. When the temperature in the dry-type transformer shell is higher than the normal temperature by more than 50 ℃, on the basis of cooling by using an air circulation mode, the dry ice is sprayed to the dry-type transformer body to carry out intensified cooling so as to quickly realize the cooling of the dry-type transformer.
Finally, a gas dispersing device with the same length as the dry type transformer body is arranged, gas is sprayed out through gas spraying holes of the gas dispersing device, side parts of the dry type transformer body are sprayed, the gas flows along the surface of the dry type transformer body, and heat is taken away.
Drawings
FIG. 1 is a schematic diagram of a first implementation of the present invention;
FIG. 2 is a schematic view of the sagging of the baffle plate according to the present invention;
FIG. 3 is a schematic view of a baffle being blown up or sucked up into a gap in accordance with the present invention;
fig. 4 is a schematic diagram of a second implementation form of the invention.
Detailed Description
The present invention is described in further detail below to enable those skilled in the art to practice the invention by reference to the specification.
Example 1
Fig. 1 to 3 show an implementation form of the present invention, a dustproof noise reduction dry type transformer, comprising:
a dry type transformer body 1, a dry type transformer housing 2, a water tank 3, an air pump 4, a drying pipe 5 and a wind shield 6.
The dry type transformer housing 2 has a space accommodating the dry type transformer body 1 for protecting the dry type transformer body 1; a concave part 21 is arranged at the bottom of any side of the dry type transformer shell 2; an air outlet 22 is formed in the side part of the dry-type transformer housing 2 near the top, and an air inlet 23 is formed in the side part of the dry-type transformer housing 2 near the bottom or the middle.
The water tank 3 is clamped in the concave portion 21, the top of the water tank 3 is tightly attached to the bottom of the concave portion 21, and a vent 31 is arranged at the same position of the top of the water tank 3 and the bottom of the concave portion 21 so as to communicate the water tank 3 with the inside of the dry-type transformer housing 2.
An air pump 4 is arranged in the dry type transformer housing 2, and the air pump 4 is communicated to an air inlet 23 of the dry type transformer housing through an air inlet pipe 41 so as to extract external air; the air pump 4 is communicated into the water tank 3 through a plurality of air outlet tubules 42 and stretches into water, and after bending, the air pump continues to stretch in the water.
One end of the drying pipe 5 is communicated with the air vent 31, the other end of the drying pipe extends inside the dry type transformer shell 2 in a spiral mode and faces the dry type transformer body 1, and the drying pipes 5 are arranged in a plurality and all surround the air pump 4 to wrap the air pump 4.
The wind deflector 6 comprises a plurality of first wind deflectors covering the air outlet 22 and second wind deflectors covering the air inlet 23; wherein, the upper sides of the plurality of first wind shields are connected on the outer side wall of the dry-type transformer shell 2 in parallel through a rotating shaft 0; when the air in the dry-type transformer shell is discharged from the air outlet 22, the air blows the first wind shields and then is discharged outwards through gaps among the first wind shields; when no air is discharged from the air outlet 22, the first wind deflector sags downward by gravity to cover the air outlet 22.
The upper sides of the second wind shields are connected on the inner side wall of the dry-type transformer shell 2 in parallel through a rotating shaft 0; when the air pump 4 pumps air, the second wind shield is sucked under the action of air pressure, and a ventilation gap is formed between the second baffles; when the air pump 4 stops pumping, the second baffle plate sags downwards under the action of gravity to cover the air inlet 23.
In this embodiment, when the dustproof noise reduction dry type transformer is operated, the air pump is opened when the temperature of the internal environment reaches 55 ℃ or exceeds 55 ℃, so that a ventilation gap is formed between the second baffles to extract the external air; outside air is discharged into the water tank through the air outlet tubule, along with the continuous outwards extraction air of air pump, the atmospheric pressure in the water tank grow, the air on water tank upper portion is discharged in the drier from the air vent, blow the inside of dry-type transformer casing again, along with the inside air of transformer casing increases, unnecessary gas blows up first baffle and forms the gap, with the outside discharge in the air follow gap in the dry-type transformer casing, the circulation of air has been formed with the exhaust of constantly breathing in, cool down to the inside dry-type transformer casing through the circulation of air.
At this time, noise generated by the dustproof noise reduction dry type transformer and the air pump in operation is transmitted outwards from the air inlet and the air outlet; firstly, a drying pipe is coiled around the air pump, and when the noise of the air pump is transmitted outwards, the noise is interfered by the drying pipe to be reflected, so that the noise transmitted outwards is reduced; when noise propagates to the air outlet or the air inlet, the wind shields are blown up or sucked to incline so that gaps exist between the wind shields, and when the noise propagates outwards from the gaps, the noise is blocked by a plurality of wind shields and is reflected towards the inside of the dry-type transformer shell to be weakened gradually, so that the noise is reduced to propagate outwards.
When the environment in the dry-type transformer shell is reduced to below 55 ℃, the operation of the air pump is stopped, the air pump stops exhausting air outwards, meanwhile, air in the dry-type transformer shell is not exhausted outwards any more, and the wind shield sags downwards under the action of gravity so as to cover the air inlet and the air outlet. At this time, noise generated by the operation of the dry-type transformer body is blocked by the baffle plate and reflected to the inside of the dry-type transformer housing to be weakened gradually, so that the noise is reduced from being transmitted outwards.
Example 2
Fig. 2 to 4 show an implementation form of the present invention, a dustproof noise reduction dry type transformer, comprising:
a dry type transformer body 1, a dry type transformer housing 2, a water tank 3, an air pump 4, a drying pipe 5 and a wind shield 6.
The dry type transformer housing 2 has a space accommodating the dry type transformer body 1 for protecting the dry type transformer body 1; a concave part 21 is arranged at the bottom of any side of the dry type transformer shell 2; an air outlet 22 is formed in the side part of the dry-type transformer housing 2 near the top, and an air inlet 23 is formed in the side part of the dry-type transformer housing 2 near the bottom or the middle.
The water tank 3 is clamped in the concave portion 21, the top of the water tank 3 is tightly attached to the bottom of the concave portion 21, and a vent 31 is arranged at the same position of the top of the water tank 3 and the bottom of the concave portion 21 so as to communicate the water tank 3 with the inside of the dry-type transformer housing 2.
An air pump 4 is arranged in the dry type transformer housing 2, and the air pump 4 is communicated to an air inlet 23 of the dry type transformer housing through an air inlet pipe 41 so as to extract external air; the air pump 4 is communicated into the water tank 3 through a plurality of air outlet tubules 42 and stretches into water, and after bending, the air pump continues to stretch in the water.
One end of the drying pipe 5 is communicated with the air vent 31, the other end of the drying pipe extends inside the dry type transformer shell 2 in a spiral mode and faces the dry type transformer body 1, and the drying pipes 5 are arranged in a plurality and all surround the air pump 4 to wrap the air pump 4.
The wind deflector 6 comprises a plurality of first wind deflectors covering the air outlet 22 and second wind deflectors covering the air inlet 23; wherein, the upper sides of the plurality of first wind shields are connected on the outer side wall of the dry-type transformer shell 2 in parallel through a rotating shaft 0; when the air in the dry-type transformer shell is discharged from the air outlet 22, the air blows the first wind shields and then is discharged outwards through gaps among the first wind shields; when no air is discharged from the air outlet 22, the first wind deflector sags downward by gravity to cover the air outlet 22.
The upper sides of the second wind shields are connected on the inner side wall of the dry-type transformer shell 2 in parallel through a rotating shaft 0; when the air pump 4 pumps air, the second wind shield is sucked under the action of air pressure, and a ventilation gap is formed between the second baffles; when the air pump 4 stops pumping, the second baffle plate sags downwards under the action of gravity to cover the air inlet 23.
Further, the drying duct 5 is filled with a water absorbing desiccant to absorb moisture in the air entering the transformer housing 2 from the air vent 31.
Further, the surface of the dry-type transformer body 1 is further covered with a wire mesh 7, the wire mesh 7 is formed by spirally interlacing the wire filaments, gaps of not less than 1 cm are formed between the wire filaments so that the wire mesh can be ventilated, and the farther the wire mesh 7 is away from the dry-type transformer body 1, the larger the gaps are. The wire mesh is covered on the surface of the dry-type transformer body, so that the heat emitted by the dry-type transformer body can be quickly absorbed; simultaneously, the staggered wire mesh of spiraling can be with the even dispersion of dry pipe spun gas to the even heat of taking away on the wire mesh of being convenient for, and then to dry-type transformer body cooling. Secondly, the wire mesh is gradually diluted outwards from the surface of the dry-type transformer body, so that metal far away from the surface of the dry-type transformer body can dissipate heat faster, and heat close to the surface of the dry-type transformer body is continuously dissipated outwards along the wire mesh, so that the dry-type transformer body can be cooled more rapidly.
Further, the first wind deflector and the second wind deflector are covered with mineral wool towards one side surface of the dry-type transformer body 1, so that tightness between the wind deflectors can be improved, and noise absorption is improved.
Further, a dry ice chamber 8 is further provided in the dry-type transformer housing 2, and the dry ice chamber 8 is provided at the bottom of the dry-type transformer housing 2 and at a position right below the dry-type transformer body 1; a nozzle 81 is arranged on one side of the dry ice chamber 8 facing the dry transformer body, and the nozzle 81 is provided with a control switch to control the opening and closing of the nozzle 81. On the basis of embodiment 1, when the dustproof noise reduction dry type transformer operates, when the temperature of the internal environment exceeds 85 ℃, the nozzle is opened at the same time, and the heat in the dry type transformer shell is absorbed by releasing dry ice for sublimation, so that the temperature in the dry type transformer shell can be reduced more quickly; and the nozzle faces the dry-type transformer body so as to directly cool the surface of the dry-type transformer body.
Further, a temperature sensor 9 is further disposed in the dry-type transformer housing 2 to sense an ambient temperature between the dry-type transformer housing 2 and the dry-type transformer body 1; the temperature sensor 9 is in communication connection with a switch and a control switch of the air pump, wherein the switch of the air pump is configured to: when the temperature is higher than a first temperature value, a switch of the air pump is controlled to be turned on; when the temperature is lower than a first temperature value, a switch of the air pump is controlled to be turned off; the control switch is configured to: when the temperature is higher than the second temperature value, the control switch opens the nozzle 81 to spray dry ice to the dry type transformer body 1; when the temperature is lower than the second temperature value, the control switch closes the spout 81 to close the dry ice chamber 8.
Further, the drying pipe 5 is provided with the gas dispersion device 10 towards dry-type transformer body one end, the vertical setting of gas dispersion device 10 is in the lateral part of dry-type transformer body 1, and the length of gas dispersion device 10 is the same with the height of dry-type transformer body 1, gas dispersion device 10 is towards the 1 one side evenly distributed of transformer body has the fumarole, and the inside of gas dispersion device 10 is hollow structure, and the gas of drying pipe 5 is spouted from the fumarole after passing through hollow structure. The gas dispersing device is arranged in the same length as the dry type transformer body, gas is sprayed out through the gas spraying holes of the gas dispersing device, the side part of the dry type transformer body is sprayed, the sprayed gas can completely cover the side surface of the dry type transformer body, and the gas flows along the surface of the dry type transformer body, so that heat is taken away.
Although embodiments of the invention have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. Therefore, the invention is not to be limited to the specific details disclosed herein without departing from the general concepts defined in the claims and the equivalents thereof.
Claims (7)
1. A dustproof noise reduction dry type transformer, comprising:
a dry-type transformer body;
a dry-type transformer housing having a space accommodating the dry-type transformer body for protecting the dry-type transformer body; the bottom of any side of the dry-type transformer shell is provided with a concave part; an air outlet is formed in the position, close to the top, of the side part of the dry type transformer shell, and an air inlet is formed in the position, close to the bottom or the middle, of the side part of the dry type transformer shell;
the water tank is clamped in the concave part, the top of the water tank is tightly attached to the bottom of the concave part, and an air vent is arranged at the same position of the top of the water tank and the bottom of the concave part so as to communicate the water tank with the inside of the dry-type transformer shell;
the air pump is arranged in the dry-type transformer shell and is communicated to an air inlet of the dry-type transformer shell through an air inlet pipe so as to extract external air; the air pump is communicated into the water tank through a plurality of air outlet tubules and extends into the water, and continues to extend in the water after being bent;
one end of the drying pipe is communicated with the air vent, and the other end of the drying pipe spirally extends inside the dry-type transformer shell and forms a body facing the dry-type transformer; the drying pipes are arranged and all surround the air pump to wrap the air pump;
the wind shields comprise a plurality of first wind shields covered on the air outlet and a plurality of second wind shields covered on the air inlet;
the upper sides of the first wind shields are connected to the outer side wall of the dry-type transformer shell in parallel through a rotating shaft; when the air in the dry-type transformer shell is discharged from the air outlet, the air blows the first wind shields and then is discharged outwards through gaps among the first wind shields; when no air is discharged from the air outlet, the first wind shield sags downwards under the action of gravity so as to cover the air outlet;
the upper sides of the second wind shields are connected on the inner side wall of the dry-type transformer shell in parallel through a rotating shaft; when the air pump pumps air, the second wind shield is sucked under the action of air pressure, and a ventilation gap is formed between the second baffles; when the air pump stops exhausting, the second baffle plate sags downwards under the action of gravity so as to cover the air inlet.
2. The dustproof noise reduction dry transformer of claim 1, wherein the drying pipe is filled with a water absorbing desiccant to absorb moisture in the air entering the transformer housing from the vent.
3. The dustproof noise reducing dry transformer of claim 1, wherein the surface of the dry transformer body is further covered with wire mesh, the wire mesh is formed by the wire coils which are staggered, and gaps of not less than 1 cm are formed between the wire mesh to enable ventilation of the wire mesh, and the further the wire mesh is from the dry transformer body, the larger the gap is.
4. The dustproof noise reducing dry transformer of claim 1, wherein a side surface of the first wind deflector and the second wind deflector facing the dry transformer body is covered with mineral wool.
5. The dustproof noise reduction dry type transformer according to claim 1, wherein a dry ice chamber is further arranged in the dry type transformer shell, and the dry ice chamber is arranged at the bottom of the dry type transformer shell and at a position right below the dry type transformer body; and a nozzle is arranged on one side of the dry ice chamber, which faces the dry-type transformer body, and is provided with a control switch for controlling the opening and closing of the nozzle.
6. The dustproof noise reduction dry type transformer according to claim 5, wherein a temperature sensor is further arranged in the dry type transformer housing to sense an ambient temperature between the dry type transformer housing and the dry type transformer body;
the temperature sensor is in communication connection with a switch and a control switch of the air pump;
wherein the switch of the air pump is configured to: when the temperature is higher than a first temperature value, a switch of the air pump is controlled to be turned on; when the temperature is lower than a first temperature value, a switch of the air pump is controlled to be turned off;
the control switch is configured to: when the temperature is higher than a second temperature value, the control switch opens the nozzle to spray dry ice to the dry type transformer body; when the temperature is lower than a second temperature value, the control switch closes the nozzle to close the dry ice chamber.
7. The dustproof noise reduction dry type transformer according to claim 1, wherein a gas dispersing device is arranged at one end of the drying pipe, facing the dry type transformer body, and is vertically arranged at the side part of the dry type transformer body, the length of the gas dispersing device is the same as the height of the dry type transformer body, gas spraying holes are uniformly distributed on one surface of the gas dispersing device, facing the dry type transformer body, the inside of the gas dispersing device is of a hollow structure, and gas of the drying pipe is sprayed out from the gas spraying holes after passing through the hollow structure.
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| CN202010717369.XA CN111834091B (en) | 2020-07-23 | 2020-07-23 | Dustproof noise reduction dry-type transformer |
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| CN111834091A (en) | 2020-10-27 |
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