Oil storage tank liquid seal mechanical seal double-seal integrated environment-friendly breathing device

Abstract

The invention discloses an oil storage tank liquid seal mechanical seal double-seal integrated environment-friendly breathing device. The device comprises a shell structure, a breathing valve, a breathing mechanism, a communicating pipe, an air inlet mechanism, an exhaust mechanism, a reaction spring and an adsorption filter medium, and the shell structure comprises a cylindrical shell, a shell seat, a shell cover and the breathing valve arranged in the middle of the shell cover, and the shell seat and the shell cover are connected with a shell bolt; the air inlet mechanism comprises a squareair inlet pipe welded with an air inlet of a right-angle communicating pipe and an air inlet valve right-angle trapezoidal sealing cover structure arranged at the upper part of the periphery of the square air inlet pipe; the exhaust mechanism comprises a exhaust port inserted in the middle of the shell seat, an air inlet arranged in the middle, a right-angle communicating pipe of a flange arrangedon the lower end, an exhaust valve, an exhaust pipe vertically connected with the exhaust valve and an annular pipe arranged at the bottom of the lower end of the exhaust pipe, and the exhaust valveis arranged above the exhaust port and has the same structure and the same direction as an air inlet valve; and the adsorption filter medium comprises spherical activated carbon arranged in an activated carbon net at the inner periphery of the exhaust pipe and transformer oil at the bottom of a shell. According to the device, environmental pollution is prevented, and light components are recovered.

Description

technical field [0001] The invention relates to the technical field of oil storage safety, in particular to a liquid-sealed, mechanical-sealed, double-sealed integrated environmental protection breathing device for an oil storage tank. It solves the problems of large investment in double setting of oil storage tank liquid seal and mechanical seal breathing valve, environmental pollution of exhaled gas and non-recovery of light oil. Background technique [0002] At present, the oil storage tanks used in the society, the oil field joint processing station and the oil storage tanks used by the oil pipeline bureau are all equipped with liquid-sealed breathing valves and mechanical breathing valves for the safety of the oil storage tanks and to reduce the volatilization of oil and gas in the oil storage tanks. Oil storage is carried out in a micro-pressure sealed manner, while protecting the safety of the oil storage tank. The liquid-sealed breathing valve does not work normally...

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