摘要
目的利用中一精锻有限公司锻造工艺中高频加热冷却水余热及当地丰富的地下水资源,建立可以为厂区供暖的余热回收系统,解决工厂在冬季无配套设施的供暖需求.方法构建基于水源热泵技术为基础的高效余热回收系统,主要包含五个子系统,该系统将低品位热源进行转移、集中以满足供暖需求,并运用蓄热水池对供暖温度进行调节.结果在冬季放假与正常工作期间两种工况进行实地测量,在无余热情况下,工厂室内温度可以达到7℃以上,满足工厂保温要求;当环境温度为-25℃,三台热泵机组同时运行时,稳定供暖出水温度为55℃、供暖回水温度为51℃,其厂房温度稳定在15℃以上,达到设计要求;通过数据计算在热泵稳定状态下制热能效比保持在6.0左右.结论通过锻造余热回收系统,保证了锻造生产中冷却水的供应,为厂房和办公室的供暖和生活用水提供了生活保障,减少了对环境的热污染.
Using the waste heat of high-frequency heating,cooling water and the abundant groundwater resources in the forging process of Zhong Yi Precise Forging Co.Ltd.,a waste heat recovery system for heating the plant in winter was established.A high-efficiency waste heat recovery system based on water source heat pump technology is constructed,which mainly includes five subsystems,which transfer and concentrate low-grade heat source energy to meet heating demand and monitor heating temperature.In the winter holiday and normal working period,the two conditions are measured in the field.In the absence of residual heat,the indoor temperature of the factory can reach about 7℃,which can achieve the effect of the factory insulation gas.When the ambient temperature is-25℃,when the three heat pump units are running at the same time heating water is 55℃,the heating return water is 51℃,and the plant temperature can above 15℃,meeting the design requirements.According to the data calculation,the COP is maintained at about 6.0 in the steady state of the heat pump.
作者
陈辉
刘金朋
张丽秀
聂国清
CHEN Hui;LIU Jinpeng;ZHANG Lixiu;NIE Guoqing(School of Mechanical Engineering,Shenyang Jianzhu University,Shenyang,China,110168;ZhongYi Precision Forging Co.Ltd.,Baicheng,China,137000)
出处
《沈阳建筑大学学报（自然科学版）》
CAS
CSCD
北大核心
2020年第2期352-360,共9页
Journal of Shenyang Jianzhu University：Natural Science
基金
国家自然科学基金项目(51375317)。
关键词
余热回收
冬季供暖
COP
水源型热泵
锻造余热
waste heat recovery
winter heating
coefficient of performance
water source heat pump
forging waste heat
