Oil and gas storage and transportation pressure release valve

The utility model provides an oil and gas storage and transportation pressure release valve which comprises a valve body, conveying pipes fixedly installed on the two sides of the valve body, a copper valve arranged on the top of the valve body and used for adjusting air pressure, baffles fixedly installed on the two sides of the bottom of the valve body, threaded holes formed in the middles of the baffles, limiting screws in threaded connection with the interiors of the threaded holes, and L-shaped steel plates in threaded connection with the baffles through the limiting screws. A limiting screw is arranged in the L-shaped steel plate, the two ends of the limiting screw are in threaded connection with nuts, a plurality of positioning holes are distributed in the surface of the L-shaped steel plate, positioning rods are in threaded connection with the interiors of the positioning holes, and the two ends of each positioning rod are in threaded connection with nuts. The cross-shaped supporting plate shares the