CN107068335A - A kind of dry type potential device of double-radiation function - Google Patents

Abstract

This invention relates to the field of transformer technology, specifically to a dry-type transformer device with dual heat dissipation, comprising a transformer casing, a transformer body, a heat absorption and heat dissipation unit, a cooling box, and a transformer mounting frame. The transformer casing and the cooling box are respectively mounted on the upper and lower mounting frames. The heat absorption and heat dissipation unit is installed inside the transformer casing to dissipate heat from the transformer body. The cooling box cools the air by drawing air into the transformer casing via a suction fan to accelerate heat dissipation from the transformer body. This dual-adjustment heat dissipation is achieved. Furthermore, a temperature sensor connected to the cooling box control switch is installed inside the transformer casing, which can detect and automatically adjust the operating mode based on the temperature of the transformer body. A protective plate is installed on the top of the transformer mounting frame, enabling the transformer to operate stably and efficiently.

Description

A dry-type transformer device with double heat dissipation

technical field

The invention relates to the technical field of transformers, in particular to a double heat dissipation dry-type transformer device.

Background technique

The transformer is a complete set of transformation equipment, used for terminal power supply and ring network power supply, the conversion is very convenient, ensuring the reliability and flexibility of power supply, but the transformer will generate a lot of heat during operation, how to control it well The operating temperature becomes the key to ensure the normal operation of the dry-type transformer and prolong the service life of the internal electronics. The heat dissipation methods of dry-type transformers include compressed cabinet air conditioners, traditional heat exchangers, etc., but the effect is not ideal in the actual closed, dusty, oil mist and other harsh conditions, and the current dry-type transformer is due to its safety and Importance, general installation also needs to be considered emphatically, and factors such as drying, ventilation and rain protection need special consideration.

The traditional heat dissipation of transformers is mainly through the installation of air ducts in the body, and the heat is taken away by the gas circulation flow for heat dissipation. The structure is complicated, and the manufacturing and maintenance costs are high. Inside, the heat is dissipated through the vents, and the heat dissipation effect is not good. The existing technology also uses a special cooling device to dissipate heat for the transformer, but the price is high, and the increased cost of long-term use, so the cooling problem of the dry-type transformer still remains need to be resolved.

Contents of the invention

In order to solve the above problems, the present invention provides a double heat dissipation dry-type transformer device. At the same time, it adopts two cooling methods of cooling fins and providing cooling gas. According to the change of the working environment of the transformer and the internal needs of the transformer, they cooperate with each other to reduce the operating time of the transformer. temperature, to avoid potential safety hazards, and has special fixed installation tools to ensure the stability of the installation of the transformer.

To solve the above problems, the present invention provides a dry-type transformer transformer with double heat dissipation, which is characterized in that it includes a transformer shell, a transformer main body, a heat-absorbing and heat-dissipating unit, a refrigeration box, and a transformer fixing frame, and the transformer fixing frame includes an upper layer fixing frame and the lower fixing frame, the transformer shell is a cubic box, fixed in the upper fixing frame by the fixed channel steel set on the upper and lower sides, the four sides of the transformer shell are evenly opened with a plurality of ventilation ports, and the main body of the transformer is set on Inside the transformer shell and fixedly installed on the bottom surface of the transformer shell, the heat-absorbing and cooling unit includes a heat-absorbing pipe, a heat-conducting pipe and a heat sink, the heat-absorbing pipe is close to the top of the transformer main body, and the heat-absorbing fin is connected to the heat-absorbing pipe through the heat-conducting pipe; The refrigeration box is a cube-shaped box structure, which is fixed in the lower fixed frame by the fixed channel steel set on the upper and lower surfaces. The refrigeration box is equipped with a refrigeration unit composed of a compressor, a cylinder, a condenser, a capillary tube and an evaporator. The two sides opposite to the box are respectively provided with an air inlet and an air outlet. The air outlet of the refrigeration box is connected to the air inlet of the suction fan through a pipe. The ventilation port provided on the transformer casing is connected, and a temperature sensor is arranged inside the transformer casing, and the temperature sensor is electrically connected to the control switch of the refrigeration box.

As a further solution of the dual heat dissipation dry-type transformer device of the present invention: a protective plate is arranged above the top of the transformer fixing frame, and the protective plate is in an arched structure.

As a further solution of the dual heat dissipation dry-type transformer device of the present invention: the upper surface of the transformer casing is provided with a through hole for the heat pipe to pass through, and the cooling fins are protruded from the outside of the transformer casing.

As a further solution of the dual heat dissipation dry-type transformer device of the present invention: a fan is fixedly installed on one side of the top of the transformer fixing frame.

As a further solution of the dual heat dissipation dry-type transformer device of the present invention: the outer surface of the transformer shell is provided with a display device for displaying the internal temperature and working state.

As a further solution of the dual heat dissipation dry-type transformer device of the present invention: the suction fan communicates with two exhaust ducts through a flow divider, and the two exhaust ducts respectively communicate with the front and side ventilation ports of the transformer shell.

As a further solution of the dual heat dissipation dry-type transformer device of the present invention: dust-proof nets are provided at the air exchange port on the side of the transformer shell and the air inlet on the refrigeration box.

Beneficial effect

1. The present invention has two ways of heat dissipation by cooling fins and cooling box provides cooling air to dissipate heat. The heat absorbing pipe absorbs heat, and transfers the heat to the cooling fins arranged on the outside of the transformer shell through the heat conducting tubes. Compared with the inside of the transformer shell, the internal temperature can be reduced more effectively. A refrigeration box is set under the transformer shell, and air is drawn from the outside through the refrigeration unit of the refrigeration box to cool down and then injected into the inside of the transformer shell, which can more effectively improve the operating environment of the transformer and provide safe operation of the transformer. performance, increasing the service life of the transformer.

2. A temperature sensor is installed inside the transformer shell. When the external temperature is low, the operating temperature requirements of the main body of the transformer can be met through the air exchange port and the heat absorption and heat dissipation unit on the transformer shell. When the internal temperature is too high, the temperature sensor is fed back to the cooling box. Control the switch, adjust and start the work of the refrigeration box, and use different levels of heat dissipation modes according to the needs by detecting the operation of the main body of the transformer, which can effectively save energy and reduce costs.

3. The outer surface of the transformer shell is equipped with a display device, which can display the internal temperature and the operating status of the two cooling methods, which is convenient for the staff to understand the internal situation of the transformer shell. The dust-proof net is set to avoid inhaling dust and other items that affect the safety of the transformer operation, and the present invention is provided with a special transformer fixing frame, the upper layer fixing frame places the transformer part, and the lower layer fixing frame prevents the refrigeration box and the suction fan part It is fixed by fixing the channel steel to ensure its stability, and the top of the transformer fixing frame is also equipped with an arched protective structure, which has the function of preventing rain and sundries.

Description of drawings

Fig. 1 is a schematic cross-sectional view of the transformer and heat dissipation parts in a double heat dissipation dry-type transformer device of the present invention;

Fig. 2 is a structural schematic diagram of a transformer fixing frame of a double heat dissipation dry-type transformer device of the present invention;

Marks in the figure: 1. Transformer shell, 2. Transformer body, 3. Refrigeration box, 4. Heat absorption pipe, 5. Heat conduction pipe, 6. Heat sink, 7. Suction fan, 8. Exhaust duct, 9. Transformer fixed Frame, 901, upper floor fixed mount, 902, lower floor fixed mount.

detailed description

As shown in the figure: a double heat dissipation dry-type transformer device, including a transformer shell 1, a transformer body 2, a heat absorption and heat dissipation unit, a refrigeration box 3 and a transformer fixing frame 9, and the transformer fixing frame 9 includes an upper fixing frame 901 And lower floor fixed frame 902, transformer fixed frame 9 is made of angle steel, and its top, bottom and the middle plate that divides upper layer fixed frame 901, lower floor fixed frame 902 are the installation plates that I-beams are made, and transformer shell 1 is cube-shaped The box body has a plurality of ventilation openings evenly on the side, and dust-proof nets are arranged at the ventilation openings. The main body of the transformer 2 is fixed inside the transformer shell 1 and installed on the bottom surface. The heat-absorbing and cooling unit includes a heat-absorbing tube 4, a The tube 5 and the heat sink 6, the heat absorbing tube 4 is close to the top of the transformer main body 1, and the heat sink 6 is connected through the heat conduction tube 5. The upper part of the transformer shell 1 is provided with a through hole for the heat conduction tube 5 to pass through, and the heat sink 6 is arranged on the transformer shell. 1, the transformer housing 1 is installed on the upper fixed frame 901, and the upper and lower surfaces are fixed and installed with the upper fixed frame 901 through the fixed channel steel, and the refrigeration box 3 is installed on the lower fixed frame 902 through the fixed channel steel set on the upper and lower surfaces. The box 3 is a cube-shaped box, and a refrigeration unit composed of a compressor, a cylinder, a condenser, a capillary tube and an evaporating dish is arranged inside, and the two opposite sides of the refrigeration box 3 are respectively provided with an air inlet and an air outlet. The air outlet of the air outlet is connected to the air inlet of the suction fan 7 installed on the lower fixed frame 902, the air outlet of the suction fan 7 is connected to the diverter, and the exhaust pipe 8 is connected to the ventilation on the front and side of the transformer shell 1 through the diverter. The air inlet of the refrigeration box 3 is provided with a dust-proof net, and the inside of the transformer housing 1 is provided with a temperature sensor, and the temperature sensor is connected to the switch of the refrigeration box 3 and the display device on the transformer housing 1.

The temperature sensor provided inside the transformer housing 1 is used to detect the operating environment temperature of the transformer main body, and the detection result is displayed on the display device outside the transformer housing 1. The heat absorption and cooling unit of the present invention has been running to reduce the operating temperature of the transformer main body 2 , the side of the transformer shell 1 is provided with a plurality of ventilation ports to jointly adjust the temperature inside the transformer shell 1. When the cooling effect is not satisfactory and the temperature cannot be lowered to the required temperature, the temperature sensor is fed back to the switch control center of the refrigeration box 3 to start The cooling box 3 and the suction fan 7, the suction fan 7 extracts air through the cooling box 3 and discharges it into the inside of the transformer shell 1 to improve the operating environment of the transformer body 2. The air exchange port of the transformer shell 1 and the air inlet of the cooling box 3 are both provided The dust-proof net ensures the safety of operation while ensuring the operating temperature. The top layer of the transformer fixing frame 9 is provided with an arched protective plate, which has the effect of keeping out rain and sundries. One side of the top layer of the transformer fixing frame 9 A fan is installed on the side, and the heat dissipation of the heat sink 6 can be accelerated to prevent the long-time high temperature from affecting the protective plate when the fan is running.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, may use the technical content disclosed above to make some changes or modify them into equivalent embodiments with equivalent changes, but as long as they do not depart from the technical solution of the present invention, the Technical Essence Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (7)

1. A dry-type transformer device with double heat dissipation, characterized in that it includes a transformer shell (1), a transformer body (2), a heat-absorbing and heat-dissipating unit, a refrigeration box (3) and a transformer fixing frame (9), the The transformer fixing frame (9) includes an upper layer fixing frame (901) and a lower layer fixing frame (902). The transformer casing (1) is a cube-shaped box, and is fixed to the upper layer fixing frame (901) by fixing channel steel on the upper and lower sides. ), the four sides of the transformer casing (1) are evenly provided with a plurality of ventilation ports, the transformer main body (2) is arranged inside the transformer casing (1) and fixedly installed on the bottom surface of the transformer casing (1), and the heat-absorbing The heat dissipation unit includes heat-absorbing pipe (4), heat-conducting pipe (5) and cooling fins (6). The heat-absorbing pipe (4) is connected; the refrigeration box (3) is a cubic box structure, fixed in the lower fixed frame by the fixed channel steel set on the upper and lower surfaces, and the inside of the refrigeration box is equipped with a compressor, a cylinder, a condenser , a refrigeration unit composed of capillary tubes and evaporators, the two opposite sides of the refrigeration box (3) are respectively provided with an air inlet and an air outlet, and the air outlet of the refrigeration box (3) is connected to the air inlet of the suction fan (7) through a pipe, and the suction fan (7) Installed on the side of the refrigeration box (3) on the lower fixed frame, and the exhaust port is connected with the air exchange port provided on the transformer shell (1) through the exhaust pipe (8), and the inside of the transformer shell (1) is provided with A temperature sensor, and the temperature sensor is electrically connected to the control switch of the refrigeration box (3). 2. The double heat dissipation dry-type transformer device according to claim 1, characterized in that: a protective plate is arranged above the transformer fixing frame (9), and the protective plate is an arched structure. 3. A double heat dissipation dry-type transformer device according to claim 1, characterized in that: the upper surface of the transformer casing (1) is provided with a through hole for the heat pipe (5) to pass through, and the heat sink (6) It is arranged outside the transformer casing (1). 4. The double heat dissipation dry-type transformer device according to claim 1, characterized in that: a fan is fixedly installed on one side of the top of the transformer fixing frame (9). 5. The double heat dissipation dry-type transformer device according to claim 1, characterized in that: the outer surface of the transformer shell (1) is provided with a display device for displaying the internal temperature and working state. 6. A double heat dissipation dry-type transformer device according to claim 1, characterized in that: the suction fan (7) is connected to two exhaust ducts (8) through a flow divider, and the two exhaust ducts ( 8) Connect the front and side ventilation ports of the transformer housing (1) respectively. 7. A double heat dissipation dry-type transformer device according to claim 1, characterized in that: the ventilation opening on the side of the transformer casing (1) and the upper air inlet of the refrigeration box (3) are provided with dust-proof network.