在设备工程中，节能始终拥有优先权地位。换热器的设计也不例外，例如，与老的管壳式换热器相比，板式和螺旋式设计易于设置和清洗。即使管壳式换热器也在改型设计成拥有组合翅片，增加传热表面，改进传热（典型情况可达７５％）。焊接技术（如扩散焊接）正在应用于新的结构中 In plant engineering, energy conservation always has a priority. Heat exchanger design is no exception, for example, compared with the old shell and tube heat exchanger, plate and screw design easy to set up and clean. Even shell-and-tube heat exchangers are being retrofitted to incorporate a combination of fins to increase heat transfer surfaces and improve heat transfer (typically up to 75%). Welding technology (such as diffusion welding) is being applied to new structures