Radiator applied to gas-insulated switchgear

A technology of gas insulated switches and radiators, which is applied in substation/switch layout details, substation/switchgear cooling/ventilation, electrical components, etc. It can solve the problem of unsatisfactory heat conduction effect of stainless steel box, adverse effects of fan blade electric field layout, Problems such as small transmission torque, etc., to achieve good heat dissipation effect, long maintenance cycle, and large transmission torque
CN110459970AActive Publication Date: 2019-11-15上海南华兰陵电气有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海南华兰陵电气有限公司
Publication Date
2019-11-15

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Abstract

The invention relates to a radiator, and in particular relates to a radiator applied to a gas-insulated switchgear. The problems that the heat conduction effect of the existing stainless steel box body is not ideal; the disc-type structure of the internal and external torque coupling units has small transmission torque; and a bare fan blade adversely affects the electric field arrangement in the box body are solved. According to the provided gas-insulated switchgear radiator, a heat exchange tube is arranged in two through holes coaxially penetrating through the box body; an outer fan is arranged in the heat exchange tube; the outer ring of the outer fan is sleeved by a magnetic outer magnetic rotor; the outer gap of the heat exchange tube is sleeved by an inner magnetic rotor which is coupled to the outer magnetic rotor for rotation; the outer ring of the inner magnetic rotor is sleeved by an inner fan; the outer fan is fixedly connected with the output shaft of a motor; the motor isarranged on a mounting plate and coaxial with the heat exchange tube; the outer side of the heat exchange tube is sleeved by a shroud; and the shroud sleeves the outer side of the inner fan. The radiator provided by the invention has the characteristics of high safety, good heat dissipation effect and long maintenance period.
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Description

technical field

[0001] The invention relates to a radiator, in particular to a radiator for a gas insulated switchgear. Background technique

[0002] Gas-insulated switchgear is a medium-voltage power transmission and distribution switchgear that installs the primary conductive circuit in a closed stainless steel box, and at the same time, the box is filled with an appropriate amount of insulating gas as the insulating medium. Since the box is airtight, there are few conduction paths, the effect of radiation and convection in the gas is weak, and the distribution of the main conductive loop in the box is long and uneven, and the uneven heating of the main conductive loop under the action of current is difficult to obtain. control. In the prior art, sulfur hexafluoride is still commonly used as an insulating gas. Due to the strong greenhouse effect of sulfur hexafluoride, it will be gradually replaced by environmentally friendly gases, such as nitrogen, dry air, etc., but su...

Claims

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