新风过滤和排风除臭装置条件下楼房猪舍夏季环境监测  

Environmental monitoring of a multi-floor pig building under the condition equipped with fresh air filters and exhaust deodorization devices in summer

作　　者：申仲健 吴中红[1] 张锦瑞 韩华 张颖[1] 王华 刘继军[1] 王美芝[1] Shen Zhongjian;Wu Zhonghong;Zhang Jinrui;Han Hua;Zhang Ying;Wang Hua;Liu Jijun;Wang Meizhi(College of Animal Science and Technology,China Agricultural University,Beijing 100193,China;New Hope Liuhe Co.Ltd.,Beijing 100102,China)

机构地区：[1]中国农业大学动物科学技术学院,北京100193 [2]新希望六和股份有限公司,北京100102

出　　处：《农业工程学报》2022年第11期215-222,共8页Transactions of the Chinese Society of Agricultural Engineering

基　　金：生猪产业技术体系北京市创新团队项目(BAIC02-2020)。

摘　　要：楼房猪场可节约占地面积,楼房猪舍常增设新风过滤装置和排风除臭墙用以改善舍内环境和减少废气排放。为了解此类楼房猪舍夏季环境控制情况,选择北京郊区某楼房猪舍的三个楼层作为监测对象,底层(1层)、中间层(3层)和顶层(5层)新风过滤装置洁净度分别为优、差和良,中间层和顶层风机开启6台,底层风机开启5台,通过监测猪舍的温度、湿度和二氧化碳浓度(质量分数)、风机处静压差等环境参数,分析楼房猪舍不同楼层通风量、温度、温度分布均匀度及环境舒适度。结果显示,底层、中间层和顶层风机处静压差分别为69.7、110.1和98.7 Pa;高静压差导致猪舍实际通风量和风机能效比降低,猪舍实际通风量中间层(205313 m^(3)/h)和顶层(233611 m^(3)/h)显著低于底层(247903 m^(3)/h)(P<0.05),风机能效比中间层(15.3 m^(3)/(h·W))和顶层(17.4 m^(3)/(h·W))显著低于底层(22.5 m^(3)/(h·W))(P<0.05);底层舍内温度(24.2℃)显著低于中间层(24.6℃)和顶层(24.7℃)(P<0.05),舍内不同位置同期最大温差(0.4℃)显著低于中间层(1.1℃)和顶层(0.6℃)(P<0.05),综合温湿度和风速计算母猪等效温度指数(Equivalent Temperature Index for Sows,ETIS),底层最小,中间层最大。该研究可为楼房猪舍提高通风效率、优化楼房猪舍夏季环境控制方案提供理论依据。Multi-floor pig building has been widely used to save the land use of farms in large-scale production in recent years.Fresh air filters and exhaust deodorization walls can be often added to reduce the odor emission for a better biosafety level.This study aims to evaluate the air quality in the environment of the barn in the multi-floor pig building equipped with a fresh air filter and exhaust deodorization wall in summer.The experiment was performed on a multi-floor pig building in the suburbs of Beijing,China.The ground(1st floor),middle(3rd floor),and top(5th floor)floors were selected as the experimental objects,each of which Unit 3 was as the experimental barns.All barns were equipped with a fresh air filter and an exhaust deodorization wall.The cleanliness levels of the fresh air filter device were clean,poorly clean,and relatively clean on the ground,middle,and top floor,respectively.A continuous measurement was made on the static pressure difference at the fan,temperature,relative humidity,and carbon dioxide concentration of the barn on different floors.At the same time,the temperature and humidity index(THI)and the maximum temperature difference were calculated to compare the temperature distribution and environmental comfort of the barn on different floors.The results showed as follows.The static pressure differences at the fan on the ground,middle and top floors were 69.7,110.1,and 98.7 Pa,respectively.Moreover,the ventilation volumes of a single fan on the ground,middle,and top floors were 49580,34219,and 38935 m^(3)/h,respectively.Since six fans were turned on both the middle and top floor,the real ventilation volume and fan energy efficiency ratio of the barn were significantly lower than those on the ground floor,where five fans were turned on(P<0.05).The numbers of gilts on the barn for the ground,middle,and top floor were 420,570,and 550,respectively,while,the corresponding real ventilation rates were calculated to be 590,360,and 425 m^(3)/h,respectively.The environmental parameters on the ground

关 键 词：通风 温度 压差 楼房猪舍 母猪等效温度指数(ETIS) 

分 类 号：X835[环境科学与工程—环境工程]