Temperature control inflating device for sulfur hexafluoride

Abstract

The invention relates to a temperature control inflating device for sulfur hexafluoride, wherein the device inflates and re-inflates high-voltage electric equipment and has a temperature control function. The device consists of an inlet joint valve, a heating device, a vacuum pressure controller, a temperature control device, a temperature control probe, a temperature control valve, an outlet joint valve and the like. The heating device consists of a heater, an inner tube and the like. As the temperature control device is adopted, the heater pre-heats and warms to prevent SF6 is prevented from being condensed in an inflating pipeline when the heater performs preheating and heating in winter; and the situation that high-density gas which is not completely vaporized is inflated in summer is avoided, so that normal operation of the high-voltage electrical equipment is ensured. As the vacuum pressure controller is arranged, deflation and inflation are possible and the purity of SF6 inflated is improved during inflation. As the temperature control valve is arranged, the temperature of SF6 inflated is consistent to the environmental temperature. The device is compact in structure, simple and safe to operate and reliable in performance, so that the device has huge practical and promotional values.

Description

technical field [0001] The invention relates to a device for maintaining high-voltage electrical equipment, in particular to a sulfur hexafluoride temperature-controlled inflator for inflating and replenishing high-voltage electrical equipment. Background technique [0002] After retrieving relevant patent documents, a sulfur hexafluoride temperature-controlled inflator for inflating and supplementing high-voltage electrical equipment with the same structure as the present invention has not yet been retrieved. Existing sulfur hexafluoride inflating and replenishing gas for high-voltage electrical equipment, generally use sulfur hexafluoride gas storage cylinders to directly inflate and replenish high-voltage electrical equipment through the gas connection pipe, because SF6 gas is very easy to Liquefaction, in the decompression process of SF6 gas, it needs to absorb a lot of heat around, therefore, it is easy to condense in the gas charging pipeline, especially in winter, it ...

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Problems solved by technology

Existing sulfur hexafluoride inflating and replenishing gas for high-voltage electrical equipment, generally use sulfur hexafluoride gas storage cylinders to directly inflate and replenish high-voltage electrical equipment through the gas connection pipe, because SF6 gas is very easy to Liquefaction, in the decompression process of SF6 gas, it needs to absorb a lot of heat around, therefore, it is easy to condense in the gas charging pipeline, especially in winter, it is difficult to fill the gas from the SF6 steel cylinder; in summer, this simple method directly affects the The high-voltage electrical equipment rushes into the gas. Due to the incomplete vaporization and high-density SF6 gas rushing in, after the high-voltage electrical equipment has been in operation for a period of time, the internal pressure of the high-voltage electrical equipment will rise and the air pressure will be unstable, which will seriously affect the high-voltage electrical equipment. normal operation

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