Gas pressure intensity detector

Abstract

The invention relates to the technical field of detection equipment, in particular to a gas pressure intensity detector. The gas pressure intensity detector comprises: a body; an elastic breather pipewhich comprises a closed end and an open end, wherein the elastic breather pipe is arranged on the body in a bent mode; a connecting piece which is connected with the closed end of the elastic breather pipe; a rotating assembly which comprises a rotating shaft rotationally arranged on the body, a pointer arranged on the rotating shaft and a rotating piece rotationally arranged on the rotating shaft in a sleeving mode, wherein the end, away from the elastic breather pipe, of the connecting piece is eccentrically connected with the rotating piece; an error adjusting assembly which comprises anadjusting piece and an elastic buffer roll which is arranged outside the rotating shaft in a sleeving mode and is arranged in a spiral mode, wherein the inner end of the elastic buffer roll is fixedlyconnected with the rotating piece, one end of the adjusting piece is connected with the pointer, and the other end of the adjusting piece is matched with the side wall of the elastic buffer roll in an abutting mode. The gas pressure intensity detector provided by the invention can counteract the influence of temperature on sulfur hexafluoride gas pressure, and can detect accurate gas pressure values at different working environment temperatures.

Description

technical field [0001] The invention relates to the technical field of detection equipment, in particular to a gas pressure detector. Background technique [0002] Sulfur hexafluoride (SF6) has good electrical insulation performance and excellent arc extinguishing performance. Its electric strength is 2.5 times that of nitrogen under the same pressure, its breakdown voltage is 2.5 times that of air, and its arc extinguishing ability is 100 times that of air. , is a new generation of ultra-high voltage insulating dielectric material superior to that between air and oil. Because sulfur hexafluoride has good insulation performance and arc extinguishing performance, it is widely used in electrical equipment such as circuit breakers, high-voltage transformers, gas-enclosed combined capacitors, high-voltage transmission lines, and transformers. [0003] When the amount of sulfur hexafluoride gas in the sulfur hexafluoride electrical equipment is too low, that is, when the insulat...

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Problems solved by technology

[0004] However, since the rated operating temperature of the ordinary air pressure detector is 20 degrees Celsius, and the working environment temperature of the equipment is sometimes not equal to the rated operating temperature of the air pressure detector, the actual working environment temperature will be higher or lower than the rated temperature of the air pressure detector. Working temperature, while the gas pressure of sulfur hexafluoride gas is greatly affected by temperature. When the working environment temperature is high, the gas pressure detected by an ordinary barometric pressure detector is higher than that at the rated temperature. The air pressure value detected under the conditions should be high, so the use of ordinary air pressure detectors will cause detection errors, and it is easy to cause accidents such as short circuit, grounding or rupture of the explosion-proof membrane caused by insufficient sulfur hexafluoride in the equipment.

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