China Yizhong Group actively promotes scientific and technological research and development, overcomes many design and manufacturing problems, upgrades the technical level of China's large-scale pressure vessel products, and achieves world-leading leap-forward development in hydrogenation reactor manufacturing. At present, China Yizhong has become the largest domestic product supplier for forged welded structural hydrogenation reactors, with a domestic market share of over 90%. It is equipped with many refineries of PetroChina, Sinopec and CNOOC to meet the strong demand of the petrochemical industry for this product. The products are exported to Sudan, Iran, India, and other countries and regions. As an important and important backbone enterprise of the central government, China Yizhong Group Corporation firmly grasps the pulse of the market and adheres to the road of technological innovation in the process of developing petrochemical production equipment. Since the early 1980s, China has focused on the core equipment and hot-wall hydrogenation reactors that are urgently needed in the domestic petrochemical industry. The hot wall hydrogenation reactor is the core equipment of the refining industry. It has long been working under the conditions of high temperature, high pressure, hydrogen and hydrogen sulfide medium. The design, process, material selection, processing and manufacturing have extremely strict requirements. In the past, only a few industrialized countries in the world were able to manufacture. The equipment used in China's refining industry is also imported from abroad. The price is very expensive. The price per ton is as high as 15 to 160,000 yuan. Through a series of scientific and technological research and joint production, Yizhong Group has mastered some world-leading production technologies in the short term. In 1988, with the support of relevant state departments, China Yizhong and Japan Steel Works cooperated to manufacture a 21/4Cr-1Mo steel forged welded structure hydrocracking reactor for Qilu Shengli Refinery. Through this project, the technology of hot wall hydrogenation reactor of Nippon Steel Works was absorbed and absorbed, and the development process of localization of hot wall hydrogenation reactor was promoted. The world's first 2000-ton coal liquefaction reactor With the increasing weight of hydrogenation reactor products, the localization of large hydrogenation reactors exceeding 400 tons is in the forefront. In order to solve the problem of this huge transportation, China has developed on-site welding technology and marine shipping technology. Put into operation of the hydrogenation reactor. On-site welding technology is to transport the product to the site in stages and weld the last weld on site. China has solved a series of technical problems such as on-site welding, on-site heat treatment, on-site radiographic inspection, and on-site pressure testing through field practice and technical exploration. In 1995, China Yizhong successfully completed the welding of two hydrogenation reactors at Yanshan Petrochemical. General Use Strain Gauges,Eb Load Cell Transducer,Full Bridge Strain Gauge,For Compression Sensor Zhejiang Nanhua Electronic Technology Co., Ltd , https://www.nhloadcells.com
Forged hydrogenation section 
Road transport thousand tons of hydrogenation reactor 
Application of on-site welding technology in the manufacture of hydrogenation reactor