CN215496288U

CN215496288U - Heat dissipation device for power transformer

Info

Publication number: CN215496288U
Application number: CN202121253718.3U
Authority: CN
Inventors: 吴欣恬
Original assignee: Nantong Power Supply Co Of State Grid Jiangsu Electric Power Co; Nantong Tongming Group Co ltd
Current assignee: Nantong Power Supply Co Of State Grid Jiangsu Electric Power Co; Nantong Tongming Group Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2022-01-11
Anticipated expiration: 2031-06-03

Abstract

The utility model discloses a heat dissipation device for a power transformer, which comprises a transformer body and a controller, wherein an insulating pipeline with a spiral structure is arranged in the transformer body, a temperature sensor and a humidity sensor are arranged on the outer side of the insulating pipeline, the sensors can detect the temperature value in the transformer, the humidity sensor can detect the humidity value in the transformer, the insulating pipeline is arranged in the power transformer, a condensing device is arranged on one side of the insulating pipeline, and the controller is arranged on the transformer body, so that the device runs the condensing device through the controller to cool the interior of the transformer, and simultaneously, the moisture of the transformer can be prevented from being increased, and the running of the transformer is ensured.

Description

Heat dissipation device for power transformer

Technical Field

The utility model belongs to the technical field of electric power, and relates to a heat dissipation device for a power transformer.

Background

All electromagnetic carriers of the power transformer, such as iron cores, windings, leads, and structural members capable of being interlinked in a leakage place, are heating elements. The heat generated by the heating element not only raises the temperature of the heating element, but also raises the temperature of the surrounding medium, and especially when the local temperature is too high, the insulation can be damaged early, or the insulation medium is aged in a high-temperature state for a long time, so that the insulation performance of the insulation medium is gradually lost. As is known, the service life of a transformer is the service life of an insulating material, and when the transformer is required to have a certain service life, the insulating material should ensure that the transformer has a corresponding service life at a certain temperature. Whether the heat dissipation air channel can fully play the role of the heat dissipation air channel has great influence on temperature rise; in order to reach the expected temperature in the use process of the conventional resin-cast dry-type transformer, an axial heat dissipation channel is usually reserved inside the coil, and a condensing device is installed in the heat dissipation channel in the prior art to cool the inside of the transformer, but moisture inside the transformer is increased, so that the use of the transformer is affected.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a heat dissipation device for a power transformer, which cools the interior of the transformer through a condensing device, and can avoid increasing moisture of the transformer and ensure the operation of the transformer.

The utility model provides a heat dissipation device for a power transformer, which comprises a transformer body and a controller, wherein an insulating pipeline with a spiral structure is arranged in the transformer body, a temperature sensor and a humidity sensor are arranged on the outer side of the insulating pipeline, the sensors can detect the temperature value in the transformer, the humidity sensor can detect the humidity value in the transformer, the insulating pipeline is arranged in the power transformer, a condensing device is arranged on one side of the insulating pipeline, a condensing pipe is arranged on the condensing device, a temperature sensor is arranged in the condensing pipe, the condensing pipe is fixed in the insulating pipeline through a bracket, a gap is formed between the pipe wall of the condensing pipe and the insulating pipeline, the temperature sensor is arranged between the gaps, the temperature value in the gap can be detected, a ventilation device is arranged in the gap between the upper end of the condensing pipe and the insulating pipeline, the bottom of condenser pipe is placed in air pipe department, the insulating tube opposite side has exhaust duct, has installed the proportion solenoid valve on this exhaust duct, the controller is installed on the transformer body to link to each other with each temperature sensor, humidity transducer, ventilation unit, condensing equipment and proportion solenoid valve.

The controller further comprises a control chip, a digital quantity output module, a signal detection module and an analog quantity output module, wherein the digital quantity output module is connected with the ventilation device and the condensation device, the signal detection module is connected with the temperature sensor and the humidity sensor, and the analog quantity output module is connected with the temperature sensor and the humidity sensor.

The temperature sensor further comprises a detection end and a signal transmission end, the detection end can detect the temperature value of the installation position, and the signal transmission end is connected with the controller, so that the temperature sensor transmits the detected temperature parameter value to the controller.

Further humidity transducer includes sense terminal and signal transmission end, the sense terminal can detect this internal humidity value of transformer, signal transmission end links to each other with the controller, transmits the humidity parameter value that humidity transducer detected to the controller in.

Furthermore ventilation unit includes the fan, and this fan includes power input end and control end, power input end passes through the connecting wire and inserts the power, the control end passes through the connecting wire and links to each other with the digital output module of controller, makes the controller can the automatic operation fan.

The condensing device further comprises a power input end and a control end, the power input end is connected into a power supply through a connecting wire, and the control end is connected with the digital quantity output module of the controller through the connecting wire, so that the controller can automatically operate the condensing device.

The proportional solenoid valve further comprises a control end, and the control end is connected with an analog quantity output module of the controller through a connecting wire, so that the controller can automatically operate the proportional solenoid valve.

Drawings

Fig. 1 is a schematic view of an overall structure of a heat dissipation device for a power transformer of the present invention;

fig. 2 is a schematic structural view of a condensing device of a heat dissipation device for a power transformer.

In the figure: 1. a transformer body; 2. a controller; 3. an insulated pipe; 4. a temperature sensor; 5. a humidity sensor; 6. a condensing unit; 7. a condenser tube; 8. a support; 9. a ventilation device; 10. an exhaust duct; 11. a proportional solenoid valve.

Detailed Description

The following describes in detail a specific embodiment of a heat dissipation device for a power transformer according to the present invention with reference to the accompanying drawings.

As shown in fig. 1, the present invention provides a heat dissipation device for a power transformer, comprising a transformer body 1 and a controller 2, wherein an insulating pipe 3 with a spiral structure is installed in the transformer body 1, a temperature sensor 4 and a humidity sensor 5 are installed on the outer side of the insulating pipe 3, the sensors can detect a temperature value in the transformer, the humidity sensor 5 can detect a humidity value in the transformer, the insulating pipe 3 is installed in the power transformer, a condensing device 6 is installed on one side of the insulating pipe 3, a condensing tube 7 is installed on the condensing device 6, the temperature sensor 4 is installed inside the condensing tube 7, the condensing tube 7 is fixed in the insulating pipe 3 through a bracket 8, so that a gap is formed between the wall of the condensing tube 7 and the insulating pipe 3, the temperature sensor 4 is installed between the gaps, and the temperature value in the gap can be detected, install ventilation unit 9 in the clearance between condenser pipe 7 upper end and the insulating tube 3, placed in ventilation pipe 9 department the bottom of condenser pipe 7, insulating tube 3 opposite side has exhaust duct 10, has installed proportion solenoid valve 11 on this exhaust duct 10, controller 2 installs on transformer body 1 to link to each other with each temperature sensor 4, humidity transducer 5, ventilation unit 9, condensation unit 6 and proportion solenoid valve 11.

According to the above, the controller 2 comprises a control chip, a digital output module, a signal detection module and an analog output module, the digital output module is connected with the ventilation device 9 and the condensation device 6, the signal detection module is connected with the temperature sensor 4 and the humidity sensor 5, and the analog output module is connected with the humidity sensor 5.

According to the above, the temperature sensor 4 includes a detection end and a signal transmission end, the detection end can detect the temperature value of the installation position, and the signal transmission end is connected to the controller 2, so that the temperature sensor 4 transmits the detected temperature parameter value to the controller 2.

According to the above, the humidity sensor 5 includes a detection end and a signal transmission end, the detection end can detect the humidity value in the transformer body 1, and the signal transmission end is connected with the controller 2 and transmits the humidity parameter value detected by the humidity sensor 5 to the controller 2.

According to the above, the ventilation device 9 includes a fan, the fan includes a power input terminal and a control terminal, the power input terminal is connected to the power supply through a connection line, and the control terminal is connected to the digital output module of the controller 2 through a connection line, so that the controller 2 can automatically operate the fan.

As shown in fig. 2, the condensing unit 6 includes a power input terminal and a control terminal, the power input terminal is connected to a power supply through a connection line, and the control terminal is connected to the digital output module of the controller 2 through a connection line, so that the controller 2 can automatically operate the condensing unit 6.

According to the above, the proportional solenoid valve 11 includes a control end, and the control end is connected with the analog output module of the controller 2 through a connection line, so that the controller 2 can automatically operate the proportional solenoid valve 11.

The working principle of the heat dissipation device for the power transformer is as follows: controller 2 operation condensing equipment 6 makes the temperature in condenser pipe 7 reduce, makes condenser pipe 7 reduce to the temperature in the insulating tube way 3 to reduce the temperature in the transformer, be in the circulation state through the air in the insulating tube way 3 in the ventilation unit 9, accelerate to reduce the inside temperature of transformer, controller 2 is through operation proportion solenoid valve 11, the circulation rate of the interior air of control insulating tube way 3. When humidity is great in the transformer, the controller 2 receives the parameter value in the humidity sensor 5 in the transformer, and when the transformer needs cooling treatment, the controller 2 will control the operation of the condensing unit 6, reduce the temperature and the actual difference in the condenser pipe 7, avoid the inside reduction of transformer to cause inside moisture big, influence the use of transformer.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A heat dissipation device for a power transformer is characterized by comprising a transformer body and a controller, wherein an insulating pipeline with a spiral structure is installed in the transformer body, a temperature sensor and a humidity sensor are installed on the outer side of the insulating pipeline, the temperature sensor can detect a temperature value in the transformer, the humidity sensor can detect a humidity value in the transformer, the insulating pipeline is installed in the power transformer, a condensing device is installed on one side of the insulating pipeline, a condensing pipe is installed on the condensing device, a temperature sensor is installed inside the condensing pipe, the condensing pipe is fixed in the insulating pipeline through a support, a gap is formed between the pipe wall of the condensing pipe and the insulating pipeline, the temperature sensor is installed between the gaps, the temperature value in the gap can be detected, a ventilation device is installed in the gap between the upper end of the condensing pipe and the insulating pipeline, the bottom of condenser pipe is placed in air pipe department, the insulating tube opposite side has exhaust duct, has installed the proportion solenoid valve on this exhaust duct, the controller is installed on the transformer body to link to each other with each temperature sensor, humidity transducer, ventilation unit, condensing equipment and proportion solenoid valve.

2. The heat dissipation device for the power transformer as recited in claim 1, wherein the controller comprises a control chip, a digital output module, a signal detection module and an analog output module, the digital output module is connected to the ventilation device and the condensation device, the signal detection module is connected to the temperature sensor and the humidity sensor, and the analog output module is connected to the humidity sensor.

3. The heat sink for power transformer as recited in claim 2, wherein said temperature sensor comprises a detecting terminal and a signal transmitting terminal, said detecting terminal is capable of detecting the temperature value of the installed location, said signal transmitting terminal is connected to the controller, so that the temperature sensor transmits the detected temperature parameter value to the controller.

4. The heat dissipation device for the power transformer as recited in claim 2, wherein the humidity sensor comprises a detection terminal and a signal transmission terminal, the detection terminal is capable of detecting a humidity value in the transformer body, and the signal transmission terminal is connected to the controller for transmitting a humidity parameter value detected by the humidity sensor to the controller.

5. The heat dissipation device of claim 2, wherein the ventilation device comprises a fan, the fan comprises a power input terminal and a control terminal, the power input terminal is connected to a power supply through a connection line, and the control terminal is connected to the digital output module of the controller through a connection line, so that the controller can automatically operate the fan.

6. The heat dissipation device of claim 2, wherein the condensation device comprises a power input terminal and a control terminal, the power input terminal is connected to a power source through a connection line, and the control terminal is connected to the digital output module of the controller through a connection line, so that the controller can automatically operate the condensation device.

7. The heat dissipation device for the power transformer as recited in claim 2, wherein the proportional solenoid valve comprises a control end, and the control end is connected with the analog output module of the controller through a connection line, so that the controller can automatically operate the proportional solenoid valve.