基于污泥厌氧消化的吸收式热泵-高温水源热泵供热系统研究  

A Heating System with Absorption Heat Pump Combined with High Temperature Water Source Heat Pump Based on Sludge Anaerobic Digestion

作　　者：刘杰[1] 万鹏 王军[1] 郭炜 LIU Jie;WAN Peng;WANG Jun;GUO Wei(School of JEnvironment and Municipal Engineering Qingdao Technological University, Qingdao 266033, China)

机构地区：[1]青岛理工大学环境与市政工程学院,山东青岛266033

出　　处：《中国沼气》2019年第2期57-61,共5页China Biogas

基　　金：国家自然科学基金资助项目(21406127);中国博士后基金(2015M582062);部属高校国家级大学生创新创业训项目(201610429109)

摘　　要：文章依据青岛某污水厂现有污泥中温厌氧消化沼气热电联产系统,计算得出污泥高温厌氧消化下相关数据,设计采用吸收式热泵-高温水源热泵供热系统供热,并对污泥高温厌氧消化系统进行综合评价。得到结论:污泥高温厌氧消化系统比污泥中温厌氧消化系统产气量多,净发电量大,系统需热量大;采用吸收式热泵-高温水源热泵供热系统为污泥供热,可充分回收发电机组烟气热能和中水热能,提高一次能源使用率;污泥高温厌氧消化系统与污泥中温厌氧消化系统相比,年电费收益较小,环境效益大。In this paper, based on the existing mesophilic sludge anaerobic digestion and biogas cogeneration system in a sewage treatment plant in Qingdao, the relevant datum were calculated for high temperature sludge anaerobic digestion, a heat supply system containing absorption heat pump and high temperature water source heat pump was designed, and the high temperature sludge anaerobic digestion system was evaluated comprehensively. It is concluded that the high temperature sludge anaerobic digestion system could produce more biogas, obtain larger net power generation but more requirement of heat than the mesophilic sludge anaerobic digestion system. The designed heating combination system provided heat for sludge, which could fully recover smoke heat and water heat of generator set, improving primary energy efficiency. Comparing with mesophilic sludge anaerobic digestion system, the high temperature anaerobic digestion system had lower annual electricity benefit and higher environmental benefit.

关 键 词：污泥厌氧消化 吸收式热泵 高温水源热泵 热电联产 高温 

分 类 号：S216.4[农业科学—农业机械化工程]