Well head heat expansion compensator

The utility model discloses a well head heat expansion compensator, including the swinging head, socket pipe, the outer circumference intermittent type of swinging head one end cup joints and is equipped with socket pipe, be equipped with mounting flange on the swinging head, the last flange of taking the screw rod that is equipped with of socket pipe, the V -arrangement draft tube is connected to the swinging head, the straight tube draft tube, the fixed elastic layer that is equipped with between straight tube draft tube and the socket pipe, socket pipe's internal surface is equipped with first retaining ring, first retaining ring one end fixed connection leaves the clearance between the other end and the swinging head on socket pipe, the fixed sealing layer that is equipped with between first retaining ring and the elastic layer, be equipped with sealed the pad between first retaining ring and the socket pipe flange. The utility model discloses can not only carry out ground pipeline's thermal compensation,