加氢反应器是加氢炼油成套设备的心脏，它在高温、高压及富氢工况条件下运行，这类高温高压容器的制造技术要求不低于核容器。对于大型热壁加氢反应器，为了防止其内壁的高温氢及硫化氢的腐蚀以及连多硫酸的应力腐蚀，反应器内壁都难焊不锈钢耐蚀层，其产值占整个反应器的25～3 Hydrogenation reactor is the heart of hydro-refining equipment, which runs under high temperature, high pressure and hydrogen-rich working conditions. Such high temperature and pressure vessel manufacturing technology requires not less than the nuclear container. For large hot wall hydrogenation reactor, in order to prevent the inner wall of the high temperature hydrogen and hydrogen sulfide corrosion and even the stress corrosion of sulfuric acid, the reactor wall are hard to be welded stainless steel corrosion layer, the output value of the entire reactor 25 ~ 3