With the advancement of major energy strategies such as refining and chemical integration, pressure-bearing equipment is developing towards ultra-large diameters and wall thicknesses. Ultra-large pressure-bearing equipment will generate greater residual stress during welding, and traditional heat treatment technologies and standards cannot meet the demand. Therefore, key technologies for local heat treatment with primary plus secondary heating and induction heating have been developed, which can enhance the safety of large-scale petrochemical equipment. This technology can effectively reduce the residual stress of welded joints in large pressure-bearing equipment, achieving cost reduction and efficiency improvement. Combined with the new portable residual stress detection technology, it can assist in the stable and long-term operation of refining equipment, ensuring the safety of pressure-bearing equipment.

margin:0px 0px 16px, padding:0px, border:0px, font-size:16px, vertical-align:baseline, color:rgba(0, 0, 0, 0.9), background-color:#FFFFFF, "> large-scale petrochemical equipment, safety, heat treatment, residual stress, primary plus secondary heating, induction heating, portable detection equipment, indentation energy method

随着炼化一体化等能源战略的推进，承压设备向超大直径、超大壁厚的方向发展，超大型承压设备在焊接过程中会产生更大的残余应力，传统的热处理技术和标准均无法满足需求。为此，开发了提升大型石化设备安全性的主副加热和感应加热局部热处理关键技术。该技术可以有效降低焊接接头的残余应力，实现降本增效；结合便携式残余应力检测新技术，可助力炼化装置的“安稳长满优”运行，保障承压设备的安全。

margin:0px 0px 16px, padding:0px, border:0px, font-size:16px, vertical-align:baseline, color:rgba(0, 0, 0, 0.9), background-color:#FFFFFF, "> 大型石化设备, 安全性, 热处理, 残余应力, 主副加热, 感应加热, 便携式检测装备, 压入能量法