Heat pipe air pre-heater capable of preventing dew point corrosion

• Main Authors: FENG MINGZHONG, PAN XIAOJIAN, LIU LUYANG, LIN ZESHENG, WANG XINTING, LIANG CHAOKUN, XIAO KAILIN, YIN XIAOCHUN
• Format: Patent
• Language: Chinese; English
• Published: 07.08.2013
• Subjects: BLASTING; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The invention discloses a heat pipe air pre-heater capable of preventing dew point corrosion. The heat pipe air pre-heater comprises a box body, wherein a partition board dividing an inner cavity of the box body into a cold flow cavity and a hot flow cavity is arranged in the box body, and the cold flow cavity and the hot flow cavity are vertically arranged and are not connected with each other. Heat pipes are inserted onto the partition board in penetrating mode, the upper sections of the heat pipes are located in the cold flow cavity, and the lower sections of the heat pipes are located in the hot flow cavity. Spiral fins are connected onto the outer surfaces of all the heat pipes, the total area of the fins on the upper sections of the front two rows of heat pipes located close to an output port at the right end of the hot flow cavity is smaller than that of the fins on the lower sections of the front two rows of heat pipes, the total area of the fins on the upper sections of the last two rows of heat pipe