Anodic-protection plate-and-shell acid cooler

• Main Authors: WANG QINGGUANG, YANG RUIJIANG, GUO LILI, LI WEI
• Format: Patent
• Language: Chinese; English
• Published: 15.08.2012
• 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 utility model relates to heat exchangers and anodic-protection anticorrosion technologies and particularly relates to an anodic-protection plate-and-shell acid cooler which is mainly applied to the cooling of concentrated sulfuric acid. A heat exchange unit has an all-welded plate beam structure. Water serves as a plate side medium, and acid serves as a shell side medium. A main cathode is arranged on a shell side, a stainless steel plate sheet serves as an anode and is provided with a control reference electrode and a monitor reference electrode, the concentrated sulfuric acid serves as a conducting medium, thereby forming anodic protection and further, forming a relatively stable passive film on the plate sheet. Simultaneously, a plate beam is easy to be drawn out, and the plate side and the shell side are very convenient to clean. The acid cooler has the advantages of high heat transfer efficiency, compact structure and light weight of a plate-type heat exchanger, and also has the advantages of high pr