A gas wellhead sand prevention device

Abstract

The utility model discloses a kind of gas production wellhead sand prevention devices, belong to gas production technical field, including protective frame, the inside of protective frame is fixed with filter screen, the bottom of protective frame is provided with multiple support mechanisms.In the utility model, through the cooperation of rotating base, rotating plate, cover plate, mounting slot, double-shaft motor, transmission rod, second bevel gear and first bevel gear, the top of protective frame can be plugged by two cover plates, so as to carry out sand and snow blocking, when gas production is needed, two transmission rods and two first bevel gears are rotated by double-shaft motor, two rotating plates are rotated outward by the meshing transmission between two first bevel gears and two second bevel gears, so that the two cover plates on the top of protective frame are unfolded outward, after cover plate is unfolded outward, it is convenient for staff to sweep dust or snowflakes on cover plate, and it is practical.

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