an automatic exhaust valve

Abstract

The invention discloses an automatic exhaust valve. The automatic exhaust valve is characterized in that the automatic exhaust valve is of an inverted-T-shaped structure and comprises a pipeline inlet (1), a gas outlet (2), a pipeline outlet (3), a floater (4), a valve deck (5), a valve body (6) and a connecting pin (7); the pipeline outlet (3) of the automatic exhaust valve is connected with an oil tank outlet pipeline (20) through a flange; and the pipeline inlet (1) of the automatic exhaust valve is connected with a floating oil outlet device (22) through a flange. According to the automatic exhaust valve, a safety protection measure is taken to prevent gas in the pipeline from damaging the floating oil outlet device, the accident that the gas of the pipeline flows back, consequently, the floating oil outlet device moves freely, and then an oil tank is damaged is avoided, and the automatic exhaust valve is good in exhaust effect, convenient to mount and use and stable and reliable in long-time work.

Description

technical field [0001] The invention belongs to an accessory device of a petroleum storage tank, more specifically, a safety protection accessory device used in conjunction with a floating oil discharge device of the petroleum storage tank. Background technique [0002] According to the requirements of the civil aviation industry standard "Technical Specifications for Civil Airport Fuel Supply Engineering Construction", a floating oil outlet device should be installed in the jet fuel tank. According to the above regulations, part of the oil tanks used in the existing airport oil depots of the China Aviation Fuel System have been installed with floating oil delivery devices. Compared with the traditional delivery of oil from the bottom of the oil tank, the floating oil delivery device of the oil tank uses the settlement principle of moisture impurities in the gravity field to give priority to the upper layer of high-quality clean fuel, so as to ensure that the delivered fuel ...

AI Technical Summary

Problems solved by technology

[0003] Due to various reasons, a certain amount of gas will be generated in the pipeline of the oil tank. The gas in the pipeline during the oil delivery operation is a potential danger to the floating oil outlet device and the accessories of the oil tank (such as: inner floating roof). Hidden dangers will cause the floating oil outlet device to move irregularly in the oil tank, thereby causing impact on the oil tank. Domestic organic airport oil depots have experienced floating due to pipeline gas.

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