一绪言为了合理的利用能源,工厂、企业应该很好地利用余热,这是节约能源的重要措施之一。近年来国内外都给予很大注意,并得到一定发展。余热利用是以工厂中的废气(汽),通过换热设备,或直接用于工艺生产、生活或作动力等。如烟气透平就是利用炼油厂的尾气,推动透平作功;也有充分发挥现有锅炉作用,适当提高蒸汽参数,利用其压差,通过蒸汽透平进行发电,透平排汽供工艺生产之用。 First, in order to make rational use of energy, factories and enterprises should make good use of waste heat, which is one of the important measures to save energy. In recent years, great attention has been given both at home and abroad and some progress has been made. Waste heat utilization is based on the exhaust gas (steam) in the factory, through heat exchange equipment, or directly used in process production, life or power. For example, the flue gas turbine uses the refinery exhaust gas to promote the work of the turbine. It also gives full play to the role of existing boilers, appropriately increases the steam parameters, makes use of the pressure differential to generate power through the steam turbine, and supplies turbine exhaust gas to the process use.