High temperature evaporator of hexane diacid production system

The utility model discloses a high-temperature evaporator of an adipic acid production system, which relates to the technical field of the chemical equipment. The utility model solves the technical problem that the content of nitric acid in the liquid material which flows out from the bottom part of the evaporator is not steady. The utility model improves the liquid material feeding device of the original high-temperature evaporator of the adipic acid production system, and the high-temperature evaporator is technically characterized in that a feeding pipe penetrates through a tube body and an outer cover, and is fixedly communicated with an inner ring weir, the lower edge of an adjustment pipe opening is lower than the upper edge of the inner ring weir, and a liquid drain pipe is fixedly connected on the tube body. The high-temperature evaporator of the adipic acid production system has the advantages that the structure is reasonable, the operation effect is good, and the high-temperature evaporator can be e