不同通风模式对保育猪舍冬季环境的影响  

Influence of Different Ventilation System on Environment of Nursery Piggery in Winter

作　　者：李修松 叶章颖[1] 李保明[3] 冯晓龙 朱松明[1] 沈盼 LI Xiusong;YE Zhangying;LI Baoming;FENG Xiaolong;ZHU Songming;SHEN Pan(School of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China;Qingdao Bigherdsman Machinery Co., Ltd., Qingdao 266000, China;College of Water Conservancy and Civil Engineering, China Agricultural University, Beijing 100083, China)

机构地区：[1]浙江大学生物系统工程与食品科学学院,杭州310058 [2]青岛大牧人机械股份有限公司,青岛266000 [3]中国农业大学水利与土木工程学院,北京100083

出　　处：《农业机械学报》2020年第3期317-325,共9页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家重点研发计划项目(2018YFD0500700)。

摘　　要：针对猪舍地下风道进风(Ground channel ventilation,GCV)和吊顶进风(Ceiling ventilation,CV)两种不同进风方式对舍内环境的影响,分别开展了GCV与CV通风效果的试验研究。采用现场测试方法,对冬季广西壮族自治区某规模化保育场GCV和CV两种不同通风模式猪舍的热环境和空气质量环境进行测试,结果表明:GCV猪舍热环境优于CV猪舍,虽然测试期间GCV猪舍内平均温度与CV猪舍无明显差异(p>0.05),但GCV猪舍舍内温度波动1.7℃,小于CV猪舍4.6℃,GCV猪舍温度分布均匀性优于CV猪舍(p<0.05);GCV猪舍地下风道对舍外新风有加热或降温的预处理作用,地下风道的温度常年在20℃左右,当舍外新风温度较低时对其加热,舍外新风温度较高时对其降温;尽管GCV猪舍平均通风量低于CV猪舍,但GCV猪舍的NH3、PM2.5、PM10浓度均低于CV猪舍(p<0.05),GCV猪舍移除气体污染物效率高于CV猪舍(p<0.05);两模式猪舍排风口气体污染物浓度相差不大(p>0.05),GCV猪舍污染物的排放率低于CV猪舍(p<0.05)。结果表明,保育舍在冬季采用GCV通风模式,猪舍内环境优于CV通风模式。Aiming to study the differences between ground channel ventilation(GCV)and ceiling ventilation(CV)in nursery piggery in winter.The effects of GCV and CV ventilation system on the environment of piggery were studied.The field test method was used to test and analyze the thermal environment and air quality environment of piggery with GCV and CV ventilation modes in a large-scale conservation farm in Guangxi in winter.The result showed that the thermal environment of GCV piggery was better than that of CV piggery.Although there was no significant difference in average temperature of GCV and CV piggery during the test period(p>0.05),the temperature fluctuation of GCV piggery was smaller than that of CV piggery(1.7℃<4.6℃).GCV piggery underground air duct had heating or cooling effect on fresh air outside the house.When the temperature of fresh air outside the house was lower than 20.2℃,GCV heated the outside air.When it was higher than 20.2℃,GCV cooled the outside air.Although the average ventilation rate of GCV piggery was lower than that of CV piggery,the temperature distribution uniformity of GCV piggery was better than that of CV piggery(p<0.05).The concentration of NH3,PM2.5 and PM10 in GCV piggery was lower than that in CV piggery(p<0.05),and the removal efficiency of gas pollutants in GCV piggery was higher than that in CV piggery(p<0.05).There was little difference in the concentration of gas pollutants in the outlet of the two models of GCV and CV(p>0.05),and the emission rate of air pollutants in GCV piggery was lower than that in CV piggery(p<0.05).The results showed that GCV ventilation system was better than CV ventilation system in nursery piggery in winter.

关 键 词：保育猪舍 通风模式 地下通风 吊顶进风 热环境 空气质量环境 

分 类 号：TU264.3[建筑科学—建筑设计及理论]