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An external long-term heating device for post circuit breakers in low temperature areas

A low-temperature area, long-term heating technology, used in high-voltage air circuit breakers, fluid heaters, lighting and heating equipment, etc., can solve problems such as gas liquefaction, and achieve the effect of simple installation and maintenance, and high operational reliability.

Active Publication Date: 2020-05-29
STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the invention is to solve the existing SF 6 Porcelain column circuit breaker caused SF due to low temperature 6 The problem of gas liquefaction; an external long-term heating device for post circuit breakers in low temperature regions is proposed

Method used

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  • An external long-term heating device for post circuit breakers in low temperature areas
  • An external long-term heating device for post circuit breakers in low temperature areas

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specific Embodiment approach 1

[0018] Specific implementation mode one: combine figure 1 and figure 2 To illustrate this embodiment, an external long-term heating device for a column circuit breaker in a low-temperature area described in this embodiment includes a heat preservation jacket, an air input channel 4, an air delivery channel 5, and a heat pump 6;

[0019] The insulation cover is a hollow cylinder with an open bottom, and the hollow cylinder is nested outside the porcelain column 7 and fixed by the porcelain sleeve 8;

[0020] The insulation cover includes No. 1 heating jacket 1 and No. 2 heating jacket 2;

[0021] The top of the No. 1 heating sleeve 1 is connected to the top of the No. 2 heating sleeve 2; the bottom of the No. 1 heating sleeve 1 is provided with an air outlet, and the bottom of the No. 2 heating sleeve 2 is provided with an air inlet;

[0022] One end of the air input channel 4 communicates with the air output port of the heat pump 6, and the other end of the air input channe...

specific Embodiment approach 2

[0025] Embodiment 2: This embodiment is to further limit the external long-term heating device for a column circuit breaker in a low-temperature area described in Embodiment 1. In this embodiment, the heating device also includes a temperature sensor;

[0026] The temperature sensor is arranged on the top of the insulation cover;

[0027] The temperature data signal output end of the temperature sensor is connected to the temperature data signal input end of the heat pump 6 switch;

[0028] The temperature threshold of the heat pump 6 switch is manually input; when the temperature data output by the temperature sensor is less than or equal to the temperature threshold of the heat pump 6 switch, the heat pump 6 switch is in a closed state; when the temperature data output by the temperature sensor is greater than the temperature of the heat pump 6 switch When the temperature threshold is set, the switch of the heat pump 6 is in the off state.

[0029] In this embodiment, the t...

specific Embodiment approach 3

[0030] Embodiment 3: This embodiment further defines the external long-term heating device for post circuit breakers in low-temperature regions described in Embodiment 1. In this embodiment, the heating device also includes a plurality of insulating umbrellas skirt 9;

[0031] The plurality of insulating sheds 9 are respectively arranged at two ends of the air delivery channel 5 .

[0032] In this embodiment, the multiple insulating sheds 9 have the effect of increasing the creepage distance.

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Abstract

Disclosed is an external long-term heating device for a column circuit breaker in a low-temperature area, which relates to a column circuit breaker heating technology in order to solve the problem ofliquefaction of SF6 gas caused by low-temperature of an existing SF6 ceramic column circuit breaker. The heat preservation sleeve of the invention is a hollow cylinder with an opening at the bottom end, and the hollow cylinder is nested outside the ceramic column and fixed by the ceramic sleeve. The top end of the No. 1 heating sleeve is communicated with the top end of the No. 2 heating sleeve; The bottom end of the No. 1 heating sleeve is provided with an air outlet, and the bottom end of the No. 2 heating sleeve is provided with an air inlet; One end of the air input passage is communicatedwith the air output port of the heat pump, and the other end of the air input passage is communicated with the air inlet of the bottom end of the No. 2 heating sleeve; One end of the air outlet passage is communicated with the air inlet of the heat pump, and the other end of the air outlet passage is communicated with the air outlet of the bottom end of the No. 1 heating sleeve. The external long-term heating device has beneficial effects that SF6 gas liquefaction caused by low temperature is prevented, installation and maintenance are simple, and operation reliability is high.

Description

technical field [0001] The invention relates to a column type circuit breaker heating technology. Background technique [0002] SF 6 Porcelain column circuit breaker, as a main circuit breaker, is widely used in actual production; however, SF 6 The insulation and arc extinguishing characteristics of the gas are greatly affected by the air temperature and air pressure; therefore, it is necessary to take heating measures for the circuit breaker in the alpine region to prevent SF 6 Gas liquefaction; SF currently operating in ultra-low temperature environments on the grid 6 The circuit breaker adopts the following solutions: [0003] (1) The method of using mixed gas as an arc extinguishing and insulating medium; however, the proportion of mixed gas needs to be strictly controlled, and it is easy to cause a proportional imbalance when replenishing gas; and the mixed gas circuit breaker and pure SF 6 The nozzles between the gas circuit breakers cannot be interchanged, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/53F24H4/06
CPCF24H4/06H01H33/53
Inventor 胡远婷于春来郑君徐冰亮郝文波徐明宇陈晓光祖广鑫刘智洋张美伦
Owner STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD ELECTRIC POWER RES INST
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