US Patent Issued to ZHENHAI PETROCHEMICAL JIANAN ENGINEERING on June 23 for "Tube sheet built-in type structure and spiral-flow type wound tube heat exchanger" (Chinese Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,217, issued on June 23, was assigned to ZHENHAI PETROCHEMICAL JIANAN ENGINEERING Co. LTD. (Zhejiang, China).

"Tube sheet built-in type structure and spiral-flow type wound tube heat exchanger" was invented by Jiang Tao (Zhejiang, China), Hongliang Ren (Zhejiang, China), Xingmiao Hu (Zhejiang, China), Xianan Zhang (Zhejiang, China), Yuping Li (Zhejiang, China), Chenchen Ma (Zhejiang, China) and Shuming Lv (Zhejiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present utility model relates to the technical field of heat exchangers, and disclosed are a tube sheet built-in type structure and a spiral-flow type wound tube heat exchanger. The...