厂房余热改良农业大棚供热的热泵新技术实践  

Retrofitted Heat Pump Improving Agricultural Greenhouse Heating with Waste Heat of the Plant

作　　者：李金彬 郭清华[2] 宋其非 LI Jin-bin;GUO Qin-hua;SONG Qi-fei(Qingdao Kaiyuan Heating Design and Research Institute Co.,Ltd.,Qingdao 266071,Shandong,China;Shandong University of Science and Technology,Qingdao 266590,Shandong,China)

机构地区：[1]青岛开源热力设计研究院有限公司,山东青岛266071 [2]山东科技大学,山东青岛266590

出　　处：《建筑节能（中英文）》2022年第8期130-135,共6页Building Energy Efficiency

摘　　要：通过分析枣庄某水泥厂余热为农业大棚供暖的现状,将水泥厂产生的大量余热资源优化再利用,如回转窑炉筒体表面辐射余热、冷却汽轮机循环水余热,通过优化改造,设计成回转窑炉余热回收+溴化锂热泵冷热联供新系统,在筒体表面设置换热器吸收辐射余热产生高温水,冬季直接用于大棚供热,夏季驱动溴化锂热泵为大棚制冷。利用厂区内现有蒸汽,驱动溴化锂热泵,冬季吸收冷却循环水中的低温余热,为大棚供热,夏季通过厂区内原有冷却塔吸收空气中的冷量,为大棚制冷。优化和改造关键技术,并计算回收的热量;估算投资成本,计算供热成本,新系统为大棚制热2.8年可回收成本,同时附带了夏季制冷的功能。研究成果及应用经验可用于各地各类建筑的节能建造和改造。By analyzing the current situation of a cement plant for agricultural greenhouse heating, a large number of waste heat resources, such as rotary kiln surface radiation waste heat, cooling turbine circulating water heat can be optimized and transformed, which is designed as a new waste heat recovery+lithium bromide heat pump. A heat exchanger is set on the surface of the cylinder to absorb radiation residual heat and produce high temperature water. It is directly used for greenhouse heating in winter and drives lithium bromide heat pump for greenhouse refrigeration in summer. The existing steam in the plant is used to drive the lithium bromide heat pump to absorb the low temperature residual heat in the cooling circulating water to provide heat for the greenhouse in winter, and to absorb the cold volume in the air through the original cooling tower in the plant to cool the greenhouse in summer. The paper optimizes and transforms key technologies, and calculates the recovered heat;estimates the investment cost, calculates the heating cost, the new system is 2.8 years recycling cost, along with the function of summer cooling. The research results and application experience can be used for the energy-saving construction and renovation of various buildings in various places.

关 键 词：水泥厂余热 回转窑炉余热回收 溴化锂热泵冷热联供新系统 关键技术 投资估算 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]