The main purpose is to eliminate the heat generated by the pipe, and the impact on the pipe, it can offset the thermal stress . After the heating pipes are turned on, the temperature of the pipes is low at first, and later the temperature will slowly rise up, which will cause some damage to the pipes due to the effect of thermal expansion and contraction. Therefore, it is necessary to compensate for the thermal elongation of the pipe by means of a compensator, which can reduce the damage damage to the pipe by heat.