[Ten years of major development in chemical equipment] 1131-2023 New graphene modified heat exchanger that can operate continuously for 18 months

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Ten years of great development in chemical technology, praising China's prosperity and strength in the prosperous age, and making the world more lively and exciting with everyone's participation. [Ten Years of Great Development of Chemical Equipment] Continuously update the summary post, welcome to participate in the discussion https://bbs.hcbbs.com/thread-3576046-1-1.html Enhance quality awareness and promote high-quality development ----------------------------------------- As of August 5, 2023, the graphene-modified heat exchanger developed by Jiande Qiandaohu Xinchen Chemical Equipment Manufacturing Co., Ltd. has been running stably in a group company for 18 months, setting a new long-term operation record for this type of heat exchanger, and making up for the inability to use graphite heat exchangers in media containing organic solvents. WeChat pictures_20230815090007.jpg The heat exchanger has a heat exchange area of ​​70 square meters. It was installed on December 25, 2021, and put into use in February 2022. The heat exchange effect is the same as that of a pure graphite heat exchanger, and its service life is longer than that of a pure graphite heat exchanger. In April of the same year, the group purchased a total of more than 70 graphene heat exchangers with different heat exchange areas. According to Ouyang Xin, general manager of Xinchen Chemical Equipment, graphene-modified heat exchangers have excellent corrosion resistance and good heat exchange effects. They are suitable for media containing organic solvents and inorganic media, and the operating temperature is -15°C~110°C. Ouyang Xin said: “The equipment heat exchange tube is made of 70% graphite with graphene added, and the thermal conductivity is the same as that of a pure graphite heat exchanger. ； The tube plate and tubes are sealed by O-rings, which changes the traditional welding method of tube plates and tubes, improves the heat exchange effect, and facilitates replacement and maintenance. ” “Starting in 2018, Xinchen Chemical Equipment began to develop graphene heat exchangers. After repeated testing, changes, and re-debugging, the performance reached the expected value. During the R&D process, the bottleneck that graphite content above 50% cannot be welded puzzled us for a long time. Later, under the guidance of an engineer from Northern Rare Earth, we adopted the German method of using carbon steel heat exchangers without welding and with tube sheets and tubes sealed by O-rings, which improved our R&D speed. ”Ouyang Xin added. At present, this heat exchanger has been successfully used in Zhejiang, Jiangsu, Hebei, Guangdong and other places, and is used in chemical, pharmaceutical, pesticide and other industries.