Anode protection plate shell type acid cooler

• Main Authors: WANG QINGGUANG, YANG RUIJIANG, GUO LILI, LI WEI
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2012
• 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 invention relates to a heat exchanger and anode protection anti-corrosion technology, in particular to an anode protection plate shell type acid cooler for concentrated sulfuric acid cooling. A heat exchange unit has an all-welded plate bundle structure. The plate pass medium is water, and the shell pass medium is acid. The shell pass is provided with a main cathode, a stainless steel plate serves as an anode, a control reference electrode and a monitor reference electrode are arranged, and concentrated sulfuric acid acts as conducting medium, to form anode protection, to therefore form a relatively stable passivation film on the plate. At the same time, the plate bundle is easily drawn out, and the plate pass and the shell pass can be conveniently cleaned. The inventive acid cooler has the advantages of a plate type heat exchanger such as high heat transfer efficiency, compact structure and light weight, and the advantages of a shell type heat exchanger such as high pressure bearing capacity, high temper