CN107993807B - A kind of transformer cooling system - Google Patents

Abstract

The invention provides a cooling system for a transformer, which includes a box body, a transition cavity is arranged at the bottom of the box body, a transformer cavity is arranged above the transition cavity, an auxiliary box is arranged in the transformer cavity, a transformer main body is arranged in the auxiliary box, and an auxiliary box is arranged in the auxiliary box. There is an air outlet on the upper side, an air guide pipe is arranged in the auxiliary box, and an air guide pipe is arranged on the air guide pipe. The outer side of the first air-inducing box is provided with a second air-inducing box and a water-guiding cavity, the bottom of the water-guiding cavity is connected with the transition cavity through a drain pipe, and the second air-inducing box is provided with an air guide , the air guide port is connected with the air inlet of the exhaust pump, the bottom of the air guide pipe penetrates into the transition cavity and is connected with the cooling box, and the cooling box is connected with the filter box. The cooling system for the transformer of the invention has the advantages of reasonable structure, not affecting the normal operation of the transformer while producing cooling effect, and improving the environmental protection performance and the effective utilization rate of resources.

Description

A cooling system for a transformer

technical field

The invention relates to a cooling system on a transformer, in particular to a cooling system for a transformer.

Background technique

The transformer is an indispensable part in the process of voltage transportation. The transformer will generate a lot of heat during the working process. If the heat dissipation is not carried out in time, the normal operation of the transformer will be affected. Now, the transformer is generally dissipated in two ways. One is natural wind, which dissipates heat slowly, and cannot be used effectively when rapid heat dissipation is required; the other is to use auxiliary components such as blowers to dissipate heat. This method is to directly extract air to dissipate heat from the transformer, which is not suitable for high temperature weather. powerful.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a cooling system for a transformer, which solves the above-mentioned problems of the prior art.

The present invention provides a cooling system for a transformer, comprising a box body, a transition cavity is arranged at the bottom of the box body, a transformer cavity is arranged above the transition cavity, an auxiliary box is arranged in the transformer cavity, and the auxiliary box is arranged There is a transformer main body inside, a plurality of air outlets are evenly arranged on the right side of the auxiliary box, and an air duct is arranged on the left side of the transformer main body in the auxiliary box, and the bottom of the air duct passes through to the bottom of the auxiliary box. The transition cavity is connected with the cooling box, the cooling box is connected with the filter box, the filter box is provided with an air inlet pipe, the top of the air guide pipe is provided with an air induction pipe, and the left end of the air induction pipe is provided with a seal cover, at least two second through holes are evenly arranged at the bottom of the air duct, and at least three through holes are evenly arranged on the air duct in the transformer cavity below the air duct, and the guide duct in the transition cavity is The air duct is provided with an air guide pipe, the outer side of the transformer body is provided with a first air induction box, and the left side plate of the first air induction box is provided with a first through hole and a second through hole, so The outer side of the first draft box body is provided with a second draft box body and a water diversion cavity, a partition is provided between the bottom of the first draft box body and the water diversion cavity, and an air draft hole is provided on the partition plate , the bottom surface of the water diversion cavity is in an inwardly concave arc shape, the bottom of the water diversion cavity is connected with the transition cavity through a drain pipe, the transition cavity is provided with a water outlet, and the water outlet is provided with a sealing plug, the second An air guide port is provided on the right side of the air induction box, and the air guide port is connected with the air inlet of the exhaust pump.

Wherein, the cooling box is provided with a semiconductor refrigerating sheet, the semiconductor refrigerating sheet is wave-shaped, and a plurality of through holes are evenly arranged on the semiconductor refrigerating sheet at the wave crest and the wave valley for conveying cold air and discharging condensed water vapor , the cooling box under the semiconductor refrigeration sheet is provided with a guide cavity, the guide cavity is provided with a water outlet pipe, and the water outlet pipe is provided with a one-way valve.

Wherein, the cross-sections of the front, rear, left, right, and right panels of the first air-inducing box are all wave-shaped, and a plurality of first passages are evenly arranged on the wave crests on the left panel of the first air-inducing box. A plurality of second through holes are evenly arranged at the wave valley on the left side plate surface of the first air induction box, and the diameter of the second through holes is smaller than the diameter of the first through holes.

Wherein, the air guide is provided with a temperature sensing device.

Wherein, the drainage pipe is provided with an auxiliary one-way valve.

Wherein, the right side of the box is provided with a bracket frame, and the top of the bracket frame is provided with a solar photovoltaic panel and its components, a power supply, a control box and a thermal power generation device, and the thermal power generation device is connected to the air outlet of the exhaust pump, The thermal power generation device, the solar photovoltaic panel and its components are all connected to the power source through the control box, and the power source is connected to the semiconductor refrigeration sheet and the exhaust pump through the control box.

Further, the support frame is made of silicon, and a reinforcing rib is arranged between the support frame and the box body.

Furthermore, the control box is provided with a main control module, a power supply control module, a storage module, a data processing module, a solar photovoltaic panel and its component control module, a thermal power generation device control module, an exhaust pump control module, and a semiconductor refrigeration sheet control module. And the temperature sensing device control module, wherein the storage module is used to store the base temperature and the base rotational speed of the motor on the exhaust pump; the data processing module is used to determine the temperature value sensed by the temperature sensing device control module and the base temperature value. relationship; the solar photovoltaic panel and its component control module are used to control the work of the solar photovoltaic panel and its components, and transmit and store the electrical energy converted from the solar energy obtained by the solar photovoltaic panel and its components to the power source; the thermal energy generates electricity The device control module is used to control the work of the thermal power generation device, and to transmit and store the electrical energy converted from the thermal energy obtained by the thermal power generation device to the power supply; the exhaust pump control module is used to control the operation of the exhaust pump, by adjusting the The rotation speed of the electric motor achieves the purpose of controlling the speed of the exhaust pump; the semiconductor refrigeration chip control module is used to control the semiconductor refrigeration chip to connect to the power supply for refrigeration operation; the temperature sensing device control module is used to control the sensing temperature of the temperature sensing device The work obtains and identifies the temperature value sensed by the temperature sensing device, and intercepts the temperature value sensed by the temperature sensing device every 10-15min and transmits it to the data processing module.

Further, the ratio of the temperature value sensed by the temperature sensing device control module to the basic temperature value is 1:a, and the ratio of the rotational speed of the electric motor on the exhaust pump to the basic rotational speed of the electric motor on the exhaust pump is 1:a In this way, it can not only effectively avoid overheating of the main body of the transformer, but also avoid the phenomenon that the imported fresh air is exported without being well utilized, which is caused by the excessively fast rotation speed of the exhaust pump, thus effectively avoiding the waste of energy.

Wherein, the cross section of the air induction hole is a trapezoid that is wide at the top and narrow at the bottom.

Wherein, one end of the air duct is connected to the air duct, and the other end of the air duct is in the shape of a trumpet that is wide outside and narrow inside.

The advantages of the cooling system for a transformer according to the present invention are: reasonable structure, good cooling effect, effectively cooling the main body of the transformer without affecting the normal operation of the transformer, and at the same time effectively utilizing the discharged high-temperature gas The thermal and solar power generation in the system improves the environmental performance and the effective utilization of resources.

Description of drawings

1 is a schematic structural diagram of a cooling system for a transformer in an embodiment of the present invention;

Fig. 2 is a left side view of an air suction side plate in an embodiment of the present invention.

Detailed ways

As shown in FIG. 1 and FIG. 2 , the present invention proposes a cooling system for a transformer, including a box body, a transition cavity 15 is arranged at the bottom of the box body, a transformer cavity is arranged above the transition cavity 15 , and the transformer An auxiliary box is arranged in the cavity, a transformer main body 8 is arranged in the auxiliary box, a plurality of air outlets are evenly arranged on the right side of the auxiliary box, and an air guide is arranged on the left side of the transformer main body 8 in the auxiliary box Pipe 5, the bottom of the air duct 5 passes through the transition cavity 15 and is connected to the cooling box, the cooling box is connected to the filter box 1, the filter box 1 is provided with an air inlet pipe, and the air duct The top of the The air guide pipe 5 in the transformer cavity is provided with at least three through holes 9 uniformly, the air guide pipe 5 in the transition cavity 15 is provided with an air guide pipe 6, and the outer side of the transformer main body 8 is provided with a first air guide box A first through hole 111 and a second through hole 112 are provided on the left side panel 11 of the first draft box, and a second draft box 12 is provided on the outside of the first draft box. and the water diversion cavity 13, a partition plate is provided between the bottom of the first air induction box and the water diversion cavity 13, the partition plate is provided with air induction holes, and the bottom surface of the water diversion cavity 13 is inwardly concave arc shape , the bottom of the water diversion cavity 13 is connected to the transition cavity 15 through the drain pipe 14, the transition cavity 15 is provided with a water outlet, the water outlet is provided with a sealing plug, and the right side of the second air induction box is provided with The air guide port 16 is connected with the air inlet of the exhaust pump 18 .

As a preference of this embodiment, the cooling box is provided with a semiconductor refrigeration sheet 2, the semiconductor refrigeration sheet 2 is in a wave shape, and a plurality of through holes are evenly provided on the semiconductor refrigeration sheet 2 at the wave crest and the wave valley. It is used for conveying cold air and discharging condensed water vapor. The cooling box under the semiconductor refrigerating sheet 2 is provided with a diversion cavity 3, the diversion cavity 3 is provided with a water outlet pipe, and the water outlet pipe is provided with a one-way valve 4. The one-way valve 4 is used to prevent the gas from directly entering the air duct 5 from the water outlet pipe, so as to ensure the cleanliness of the gas in the air duct 5.

As a preference of this embodiment, the cross-sections of the front, rear, left, right, and right panels of the first air induction box are all wave-shaped, and the wave crests on the left panel 11 of the first air induction box are evenly set. There are a plurality of first through holes 111, and a plurality of second through holes 112 are evenly arranged at the wave valleys on the left panel surface 11 of the first air induction box. The diameter of the second through holes 112 is smaller than the The diameter of a through hole 111 .

As a preference of this embodiment, a temperature sensing device 17 is provided on the air guide 16 .

As a preference of this embodiment, an auxiliary one-way valve is provided on the drain pipe 14 to avoid back-pumping of gas through the drain pipe 14 .

As a preference of this embodiment, a bracket frame 23 is provided on the right side of the box body, and a solar photovoltaic panel and its components 22 , a power supply 21 , a control box 20 and a thermal power generation device 19 are arranged on the top of the bracket frame 23 . The thermal power generation device 19 is connected to the air outlet of the exhaust pump 18. The thermal power generation device 19 and the solar photovoltaic panel and its components 22 are connected to the power supply 21 through the control box 20. The air pump 18 is connected.

Preferably, the support frame 23 is made of silicon, and a reinforcing rib 24 is provided between the support frame 23 and the box.

As a preference of this embodiment, the control box 20 is provided with a main control module, a power control module, a storage module, a data processing module, a solar photovoltaic panel and its component control module, a thermal power generation device control module, an exhaust pump control module, The semiconductor refrigeration chip control module and the temperature sensing device control module, wherein the storage module is used to store the basic temperature and the basic rotational speed of the motor on the exhaust pump 18; the data processing module is used to determine the temperature sensed by the temperature sensing device control module. The relationship between the value and the basic temperature value; the solar photovoltaic panel and its component control module are used to control the work of the solar photovoltaic panel and its components 22, and transmit and store the electrical energy converted from the solar energy obtained by the solar photovoltaic panel and its components 22. to the power supply 21; the thermal energy power generation device control module is used to control the operation of the thermal energy power generation device 19, and transmit and store the electrical energy converted from the thermal energy obtained by the thermal energy power generation device 19 to the power supply 21; the exhaust pump control module is used for Control the work of the exhaust pump 18, and achieve the purpose of controlling the speed of the exhaust pump 18 by adjusting the speed of the motor on the exhaust pump 18; the semiconductor refrigeration chip control module is used to control the semiconductor refrigeration chip 2 to connect to the power supply 21 to perform refrigeration operations The temperature sensing device control module is used to control the temperature sensing of the temperature sensing device 17 to obtain the temperature value that the temperature sensing device 17 senses, and to intercept the temperature value that the temperature sensing device 17 senses every 10-15min. to the data processing module.

As a preference of this embodiment, the ratio of the temperature value sensed by the temperature sensing device control module to the basic temperature value is 1:a, the rotational speed of the motor on the exhaust pump 18 and the basic rotational speed of the motor on the exhaust pump 18 The ratio is 1:a, which can effectively avoid the overheating of the transformer main body 8 and the phenomenon that the imported fresh air caused by the excessively fast rotation speed of the exhaust pump 18 is exported without being well utilized, effectively avoiding the energy consumption. waste.

As a preference of this embodiment, the cross section of the air induction hole is a trapezoid that is wide at the top and narrow at the bottom.

As a preference of this embodiment, one end of the air duct 6 is connected to the air duct 5 , and the other end of the air duct 6 is in the shape of a trumpet that is wide outside and narrow inside.

The working principle of the cooling system for the transformer described in this embodiment is as follows: turn on the exhaust pump 18, turn on the power supply of the semiconductor refrigeration chip 2, and use the suction effect of the exhaust pump 18 to make the new gas enter through the filtering of the filter box 1. In the refrigerating box, when the semiconductor refrigeration sheet 2 is energized and refrigerated, the pumped gas is cooled, and then the cooled gas will pass through the air guide pipe 5, the through hole 9 on the air guide pipe 5, the air guide pipe 7, and the induced air. The second through hole on the pipe 7 is discharged, and then the new gas will pass through the gap on the transformer main body 8, the gap between the transformer main body 8 and the auxiliary box, and the surface on the right side of the auxiliary box under the pulling force of the exhaust pump 18. The air outlet enters between the auxiliary box and the first air induction box, and then goes around the left panel 11 of the first air induction box, and passes through the air outlet on the left panel 11 of the first air induction box. The first through hole 111 and the second through hole 112 enter between the first air induction box and the second cold air box 12, and then go around the air guide 16 and are extracted by the exhaust pump 18 and discharged into the thermal energy generating device 19, which is heat energy. The power generation device 19 provides a heat source, and at the same time, according to the distribution of gas quality, the gas with high water content and relatively low temperature will be below the gas with higher temperature, and the gas with lower temperature between the auxiliary box and the first air induction box will be lower. Enter the water guiding chamber 13 through the air guiding holes on the partition between the bottom of the first air guiding box and the water guiding chamber 13, and then enter the transition chamber 15 through the drain pipe 14, and then the gas in the transition chamber 15 will be in the air guiding Under the action of the pipe 5 (that is, under the action of the low-temperature gas introduced into the air duct 5), it is slightly cooled, and the moisture in the gas will condense and fall at the bottom of the transition cavity 15 after the slight cooling, and the slightly cooled gas will be cooled. A part of it will enter into the air duct 5 through the air duct 6 and be reused, which not only effectively filters out the moisture in the gas being reused, but also avoids the low temperature of the gas entering the auxiliary box.

The transformer cooling system described in this embodiment has a reasonable structure and good cooling effect, which can avoid the influence of the direct inlet temperature on the normal operation of the transformer main body 8, and also avoid the failure of the transformer main body 8 due to the too high inlet temperature. The phenomenon of cooling effect can effectively cool the transformer main body 8 without affecting the normal operation of the transformer main body 8. At the same time, it also effectively utilizes the thermal energy in the discharged high-temperature gas, and uses the thermal power generation device 19 to convert the thermal energy into electrical energy. , and then use solar energy, a clean energy source, to generate electricity to provide electrical energy support for related devices in the transformer cooling system, thereby improving environmental protection performance and effective utilization of resources.

The above is only the preferred mode of the present invention. It should be pointed out that for those of ordinary skill in the art, on the premise of not departing from the inventive concept of the present invention, several similar deformations and improvements can also be made, and these should also be regarded as within the protection scope of the present invention.

Claims (9)

1. A cooling system for a transformer, characterized in that it comprises a box body, a transition cavity (15) is arranged at the bottom of the box body, a transformer cavity is arranged above the transition cavity (15), and a transformer cavity is arranged in the transformer cavity. An auxiliary box is provided, a transformer main body (8) is arranged in the auxiliary box, a plurality of air outlets are evenly arranged on the surface on the right side of the auxiliary box, and the left side of the transformer main body (8) in the auxiliary box is provided with An air duct (5), the bottom of the air duct (5) penetrates into the transition cavity (15) and is connected with a cooling box, the cooling box is connected with a filter box (1), and the filter box (1) is provided with There is an air inlet pipe, the top of the air guiding pipe (5) is provided with an air guiding pipe (7), the left end of the air guiding pipe (7) is provided with a sealing cover, and the bottom of the air guiding pipe (7) is at least Two second through holes are evenly arranged, and at least three through holes (9) are evenly arranged on the air guide pipe (5) in the transformer cavity below the air introduction pipe (7). The air guide pipe (5) is provided with an air guide pipe (6), the outer side of the transformer main body (8) is provided with a first air induction box, and the left side panel (11) of the first air induction box is A first through hole (111) and a second through hole (112) are arranged thereon, and a second air induction box (12) and a water induction cavity (13) are arranged on the outside of the first air induction box. A partition plate is arranged between the bottom of an air-inducing box and the water-induction cavity (13), the partition plate is provided with an air-induction hole, the bottom surface of the water-induction cavity (13) is in an inwardly concave arc shape, and the water-induction cavity (13) is inwardly concave. The bottom of the cavity (13) is connected with the transition cavity (15) through the drain pipe (14), the transition cavity (15) is provided with a drain outlet, and the drain outlet is provided with a sealing plug, and the second air induction box (12) ) is provided with an air guide port (16) on the right side, and the air guide port (16) is connected with the air inlet of the exhaust pump (18). 2 . The cooling system for a transformer according to claim 1 , wherein a semiconductor refrigeration sheet ( 2 ) is provided in the cooling box, and the semiconductor refrigeration sheet ( 2 ) is in a wave shape and is located at the crest of the wave. 3 . The semiconductor refrigerating sheet (2) at Helang Valley is evenly provided with a plurality of through holes for conveying cold air and discharging condensed water vapor, and the cooling box under the semiconductor refrigerating sheet (2) is provided with a diversion cavity (3) A water outlet pipe is arranged on the diversion cavity (3), and a one-way valve (4) is arranged on the water outlet pipe. 3 . The cooling system for a transformer according to claim 1 , wherein the cross-sections of the front, rear, left, right, left and right of the first draft box are wave-shaped, and the first draft box is wavy. 4 . A plurality of first through holes (111) are evenly arranged at the wave crests on the left side plate surface (11) of the first air induction box, and the wave valleys on the left side plate surface (11) of the first air induction box are evenly arranged with A plurality of second through holes (112), wherein the diameter of the second through holes (112) is smaller than the diameter of the first through holes (111). 4 . The cooling system for a transformer according to claim 1 , wherein a temperature sensing device ( 17 ) is provided on the air guide ( 16 ). 5 . 5. The cooling system for a transformer according to claim 1, wherein an auxiliary check valve is provided on the drain pipe (14). 6 . The cooling system for a transformer according to claim 2 , wherein a support frame ( 23 ) is provided on the right side of the box body, and a solar photovoltaic panel and its top are provided on the top of the support frame ( 23 ). 7 . An assembly (22), a power supply (21), a control box (20) and a thermal power generation device (19), the thermal power generation device (19) being connected to the air outlet of the exhaust pump (18), the thermal power generation device (19) The solar photovoltaic panel and its components (22) are connected to the power supply (21) through the control box (20), and the power supply (21) is connected to the semiconductor refrigeration sheet (2) and the exhaust pump (18) through the control box (20). 7 . The cooling system for a transformer according to claim 6 , wherein the support frame ( 23 ) is made of silicon, and a reinforcing rib ( 24 ) is provided between the support frame ( 23 ) and the box body. 8 . ). 8 . The cooling system for a transformer according to claim 1 , wherein the cross section of the air induction hole is a trapezoid that is wide at the top and narrow at the bottom. 9 . 9 . The cooling system for a transformer according to claim 1 , wherein one end of the air duct ( 6 ) is connected to the air duct ( 5 ), and the other end of the air duct ( 6 ) is outside the Wide and narrow flared.