太阳能-热泵干燥污泥装置的热平衡分析  

Thermal Equilibrium Analysis of Solar Energy-heat Pump Drying Sludge Device

作　　者：王可[1] 柳建华[1,2] 张良[1,2] 周先锋[1] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]上海市动力工程多相流动与传热重点实验室,上海200093

出　　处：《节能技术》2016年第3期266-269,284,共5页Energy Conservation Technology

基　　金：上海市教育委员会重点学科资助项目(150502)

摘　　要：为了改善传统干燥污泥高耗能、高污染的现象,将太阳能、水源热泵以及污泥-空气换热器结合,研制出一套新型干燥污泥的装置。把干燥室处理后但未达到排放要求的热污泥与新鲜空气换热,将加热后的空气通入干燥室内进行干燥;换热后的污泥与来自离心脱水车间的污泥混合进行二次干燥,从换热器出来的冷凝水作为热泵的水源,热泵产生的热空气排到干燥室与污泥换热。根据气象数据以及干燥条件,进行了物料与热量的平衡计算。计算结果表明:全年的大部分月份该系统能够实现日干燥量100 000 kg污泥的任务,部分月份需要补充少量的辅助热源。In order to improve the drying of sludge with high energy consumption, high pollution, com- bined with solar energy, water source heat pump and sludge - air heat exchanger, a new sludge drying e- quipment is developed. Thermal sludge that do not meet the emission requirements but has been treated from the drying chamber and fresh air exchange heat. The heated air accesses to the drying chamber to dry, the sludge that has transfered heat mixes with sludge from a centrifuge plant for secondary The condensate from the heat exchanger as heat pump water, the hot air with sludge in the drying chamber. According to meteorological data, and drying from heat pump exchange heat drying conditions, material and energy balance calculation is made. The calculation resuhs show that throughout most of the month of the tasks of the system can achieve daily dry 100 000 kg sludge. Part of the month require a small amount ofauxiliary heat source.

关 键 词：太阳能 热泵 干燥 污泥 污泥-空气换热器 

分 类 号：TK511.2[动力工程及工程热物理—热能工程] TK115