精锻余热回收利用系统工艺设计

摘要

目的 设计并实施既能满足生产工艺要求又能充分将余热回收利用的新系统.扩大热泵的应用领域,提高热泵的使用效率.方法 利用吉林白城中一精锻公司锻造生产过程中产生的余热供暖.采用工艺冷却水与蓄水池水相结合的方法设计了一个的水池,利用当地丰富的地下水来弥补所欠缺的热量.设计新的工艺供水系统包含了冷却循环水和供暖两个系统,连接两个系统的关键组成部分是蓄水池,蓄水池不仅使两个系统成为一个整体而且还让整个系统便于控制.结果 冷却循环水系统主要是起到给锻件加热的中频炉感应圈通水保护的作用,计算得出可以从冷却循环水中回收的热量约为945 kW,该部分回收热量被加入到冬季供暖系统中,不仅提高了能源的利用率,还降低了对环境的热污染.通过对供暖需求量和可回收热量进行对比计算出水池的大小为400 m3.结论 设计的系统在满足工艺循环水要求的基础上,能够有效回收生产中产生的大量余热,减少了水资源的浪费,保护了环境.%The new system that can meet the requirements of production process and can fully utilize the waste heat recovery was designed and implemented in order to expand the field of heat pumps direction and improve the efficiency of the heat pump.The waste heat generated in the forging process of jilin baicheng is used to heat the heating,insufficient heat to be provided by groundwater.A reservoir was designed according to the heat provided by process cooling water and groundwater.A new process water supply system was designed that includes cooling and heating systems.The key component of connecting the two systems is the reservoir,which makes the two systems easy to control.The cooling water cycle system is to protect the intermediate frequency furnace to heat forging,and the heat is about 945 kW that can be recovered from the cooling cycle water.The recovered heat is used to the winter heating system,not only improving the energy efficiency,but reducing the environmental heat pollution.The volume of the reservoir is 400 m3 according to the heating demand and recoverable heat.The system can recycle a lot of waste heat that generated during the production process and meet the requirement circulating water.