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Heating device

A heating device and main heating technology, applied in the field of power transmission and transformation, can solve problems such as energy waste

Pending Publication Date: 2021-09-14
西门子能源高压开关(杭州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the heating device of the current tank circuit breaker, after the ambient temperature is lower than the preset threshold temperature, the heating belt included in the heating device is used to heat the tank body encapsulating the gas insulation medium. After the power supply line of the heating belt is connected, Regardless of the ambient temperature, the heating belt outputs heat at a constant power. Therefore, when the ambient temperature is high, the heat output by the heating belt is higher than the heat required to maintain the gas insulation medium in a gaseous state, resulting in a waste of energy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] figure 1A schematic diagram of a heating device provided in Embodiment 1 of the present application. The heating device provided in the embodiment of the present application is used to heat the tank enclosing the gas insulation medium in the tank circuit breaker, see figure 1 , the heating device includes: a control module 1, a first main heating belt 2 and a second main heating belt 3;

[0088] The control module 1 is respectively connected with the first main heating belt 2 and the second main heating belt 3;

[0089] The tank body 10 used to encapsulate the gas insulating medium in the tank circuit breaker is a cylindrical structure, and the first main heating belt 2 and the second main heating belt 3 are respectively surrounded on the outer wall of the tank body 10;

[0090] The control module 1 includes a temperature sensing unit 11 and a temperature comparison unit 12. The temperature sensing unit 11 senses the air temperature around the end where the inflation ...

Embodiment 2

[0097] figure 2 It is a schematic diagram of a heating device provided in Example 2 of the present application. see figure 2 ,exist figure 1 On the basis of the heating device shown, the heating device also includes: a spare heating belt 4;

[0098] The control module 1 is connected with the spare heating belt 4;

[0099] The spare heating belt 4 is surrounded on the outer wall of the tank body 10;

[0100] The control module 1 includes a third power supply line 16 and a fault monitoring unit 17 for supplying power to the spare heating belt 4, and the fault monitoring unit 17 monitors whether the first main heating belt 2 and the second main heating belt 3 are normally heating the tank body 10 ;

[0101] When the temperature comparison unit 12 determines that the received air temperature is lower than the first threshold temperature and higher than the second threshold temperature, and the fault monitoring unit 17 detects that the first main heating belt 2 cannot normal...

Embodiment 3

[0114] image 3 It is a schematic diagram of a control module provided in Embodiment 3 of the present application, Figure 4 It is a schematic diagram of the connection relationship between a control module and a heating belt provided in Embodiment 3 of the present application. see image 3 and Figure 4, the temperature comparison unit includes a first temperature control switch B8 and a second temperature control switch B18, the first power supply circuit includes a first relay K153 and a second relay K154, and the second power supply circuit includes a third relay K253 and a fourth relay K254;

[0115] The first temperature control switch B8 is connected in series with the coil of the first relay K153, the normally open contact group K153' of the first relay K153 is connected in series with the coil of the second relay K154, and the normally open contact group K154' of the second relay K154 Connected in series with the first main heating belt 2;

[0116] The second temp...

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PUM

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Abstract

The invention provides a heating device, which is used for heating a tank body in which a gas insulating medium is packaged in a tank type circuit breaker, and comprises a control module, a first main heating belt and a second main heating belt, wherein the tank body is of a cylindrical structure, the first main heating belt and the second main heating belt surround the outer side wall of the tank body, when the temperature of air around the end, where an inflation valve is located, of the tank body is lower than a preset first threshold temperature and higher than a preset second threshold temperature, a first power supply circuit which is included in the control module and used for supplying power to the first main heating belt is connected, and the first main heating belt is made to heat the tank body, and when the air temperature around the end, where the inflation valve is located, of the tank body is lower than or equal to the second threshold temperature, the first power supply circuit is connected with a second power supply circuit which is included in the control module and used for supplying power to the second main heating belt, and the first main heating belt and the second main heating belt are made to heat the tank body. According to the scheme, energy required for heating the tank type circuit breaker can be saved.

Description

technical field [0001] The present application relates to the technical field of power transmission and transformation, in particular to a heating device. Background technique [0002] Tank circuit breaker (dead tank circuit breaker, DT) is an important electrical component in the high-voltage transmission and distribution system, which can close, carry and break the current under normal circuit conditions, and can close, carry and Breaks current under abnormal circuit conditions. The tank circuit breaker is packaged with a gas insulating medium, such as sulfur hexafluoride (SF6). In order to prevent the gas insulating medium from liquefying due to low temperature, which will affect the abnormal function of the tank circuit breaker, it is necessary to set up on the tank circuit breaker. The heating device is used to heat the tank body encapsulating the gas insulating medium through the heating device when the ambient temperature is low, so as to ensure that the gas insulati...

Claims

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Application Information

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IPC IPC(8): G05D23/30
CPCG05D23/30
Inventor 杜飞强廖宁伟
Owner 西门子能源高压开关(杭州)有限公司