The invention discloses a method for enhancing the acid
pickling efficiency of stainless steel tubes. The method comprises the following steps of (1) acid
pickling tank equipment modification, wherein the bottom of each acid
pickling tank is arranged to be in an arc shape, and movable supporting devices are adopted on the two sides of an acid tank; and (2) an acid pickling process, wherein the procedures of carrying out feeding and acidification in sequence and carrying out acid
discharge and uncovering in sequence are adopted, the acid mist
discharge amount is greatly reduced, movement of the two ends of a crown block track is controlled in the acid pickling process, the two ends alternately move up and down, the process is repeated, acid liquor is disturbed by the steel tubes to form a turbulent flow state, the flow of an acid liquor circulation
system is increased, the turbulent flow effect is enhanced,
sludge accumulation in the acid tank is reduced, the acid liquor is cyclically heated through a
heat exchanger, the temperature is automatically controlled, and the acid pickling efficiency is improved. According to the method, the acid pickling effect of the steel tubes is enhanced; the acid pickling efficiency is improved; and by means of an empty tank feeding and automatic acid
discharge system, the acid mist discharge amount is greatly reduced, and environment benefits are enhanced.