黑龙江省生猪养殖废水沼气工程最适运行温度模拟分析  

Simulation Analysis of Optimal Operating Temperature of Biogas Project for Pig Breeding Wastewater in Heilongjiang Province

作　　者：史风梅 刘娣 裴占江 王粟 佟启玉[4] 卢玢宇 高亚冰 刘杰 SHI Feng-mei;LIU Di;PEI Zhan-jiang;WANG Su;TONG Qi-yu;LU Bin-yu;GAO Ya-bing;LIU Jie(Rural Energy & Environmental Protection Institute of Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China;Key Laboratory of Combining Farming and Animal Husbandry Ministry of Agriculture, Harbin 150086, China;Key Laboratory of Energy Utilization of Main Crop Straw Resources, Harbin 150086, China;Heilongjiang Energy Station, Harbin 150036, China)

机构地区：[1]黑龙江省农业科学院农村能源与环保研究所,哈尔滨150086 [2]农业部种养循环重点实验室,哈尔滨150086 [3]黑龙江省秸秆能源化重点实验室,哈尔滨150086 [4]黑龙江省农垦总局能源办公室,哈尔滨150036

出　　处：《中国沼气》2020年第5期42-46,共5页China Biogas

基　　金：国家“十三五”重点研发计划课题(2016YFD0501403);哈尔滨市科技局青年后备人才项目(RC2017QN002097);黑龙江省农业科学院院科学基金(2019KYJL013,2019CGJL009,2018YYF037);黑龙江生猪现代农业产业技术协同创新推广体系项目;黑龙江省农业科学院“农业科技创新跨越工程”专项项目(HNK2019CX15,HNK2019CX16,HNK2019CX17,HNK2019CX18)。

摘　　要：文章利用猪粪水半连续厌氧发酵实验数据和黑龙江省近五年的逐日气温,计算了黑龙江省沼气工程的最适运行温度。计算结果表明:在14℃~35℃,有机负荷为3 gVS·L^-1d^-1,水力停留时间为15天的条件下,黑龙江省沼气工程的最适运行温度均为20.6℃,此时产能与耗能的比值为1.17。根据黑龙江省历史日平均最低温度计算了沼气工程厌氧反应器的保温层厚度,并在黑龙江省进行了沼气工程验证,结果表明:在黑龙江地区,当保温材料PS厚度为86 mm厚时,沼气工程的日最大温降小于0.5℃,池容产气率大于0.5 m^3·d^-1L^-1。该文可为寒区沼气工程节能增效提供计算方法和技术支持。Based on the experimental data of sequencing batch anaerobic fermentation of swine breeding wastewater and the daily temperature of Heilongjiang Province in recent five years,the optimum operation temperature of biogas plants in Heilongjiang province was evaluated.The results showed that the optimum operation temperature of the biogas plants in Heilongjiang province was 20.6℃under the ambient temperature of 14℃~35℃,organic loading of 3 gVS·L^-1d-1 and hydraulic retention time of 15 days.The ratio of energy production to energy consumption attained 1.17.The thermal insulation board thickness of the plants in Heilongjiang Province was calculated according to the optimum operation temperature and the historical minimum ambient temperature.The verification result showed that,when the PS thermal insulation layer thickness was 86 mm,the daily temperature change of biogas plant was less than 0.5℃and the gas yield per unit digester volume was greater than 0.5 m3·d-1L^-1.The study can provide reference and technology support for the biogas plants in cold region to increase the energy efficiency and operation profitability.

关 键 词：最适运行温度 沼气工程 生猪养殖废水 保温层 

分 类 号：S216.4[农业科学—农业机械化工程] X703[农业科学—农业工程]