湿帘-风机系统对北京育肥猪舍的降温效果

北京市夏季高温将对猪的生产造成严重影响,夏季猪舍环境温度控制尤为重要。该试验研究比较了湿帘-风机和单纯风机在北京猪舍的降温效果,设计了风机风量测量系统并实测了猪舍通风量,每天定时分别测定两猪舍内温度、湿度、风速和舍外温、湿度并进行比较分析。结果表明：试验期间,湿帘-风机猪舍和单纯风机舍6个断面风速范围分别为0.51-0.84和0.51-0.68 m/s,整体风速差异不显著（P〉0.05）。湿帘-风机舍舍内温度显著低于单纯风机舍（P〈0.05）,湿帘-风机舍和单纯风机舍舍内温度高于30.0℃的小时数占比分别为5.0%和20.2%。湿帘-风机舍同一时刻断面1（湿帘端）温度低于断面6（风机端）温度0...

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Bibliographic Details
Published in农业工程学报 Vol. 33; no. 7; pp. 197 - 205
Main Author 王美芝 赵婉莹 刘继军 安涛 易路 王刚 吴中红
Format Journal Article
LanguageChinese
Published 中国农业大学动物科技学院,北京 100193 2017
动物营养学国家重点实验室,北京 100193%中国农业大学动物科技学院,北京,100193%中国科学院国家天文台,北京,100012
Subjects
湿帘-风机系统
猪舍
降温
风机
风速
风速
wind speed
cooling
pig house
water pad-fan system
湿帘-风机系统
猪舍
风机
降温
fans
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ISSN1002-6819
DOI10.11975/j.issn.1002-6819.2017.07.026

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Summary:北京市夏季高温将对猪的生产造成严重影响,夏季猪舍环境温度控制尤为重要。该试验研究比较了湿帘-风机和单纯风机在北京猪舍的降温效果,设计了风机风量测量系统并实测了猪舍通风量,每天定时分别测定两猪舍内温度、湿度、风速和舍外温、湿度并进行比较分析。结果表明：试验期间,湿帘-风机猪舍和单纯风机舍6个断面风速范围分别为0.51-0.84和0.51-0.68 m/s,整体风速差异不显著（P〉0.05）。湿帘-风机舍舍内温度显著低于单纯风机舍（P〈0.05）,湿帘-风机舍和单纯风机舍舍内温度高于30.0℃的小时数占比分别为5.0%和20.2%。湿帘-风机舍同一时刻断面1（湿帘端）温度低于断面6（风机端）温度0.4-2.2℃,单纯风机舍各时刻不同断面的温度差异不显著（P〉0.05）。单纯风机舍内的猪只呼吸频率均显著高于湿帘-风机舍内呼吸频率3.82次/min（12：00）和3.05次/min（14：00）（P〈0.05）。湿帘-风机舍降温系统日用水量为1.20-6.27 m-3。北京地区猪舍使用湿帘-风机系统降温效果优于单纯风机降温效果,但湿帘-风机降温将耗用一定水资源。
Bibliography:11-2047/S
fans; cooling; wind speed; water pad-fan system; pig house
Wang Meizhi1,2, Zhao Wanying1, Liu Jijun1,2, An Tao1, Yi Lu1, Wang Gang3, Wu Zhonghong1,2 （1. College of Animal Science, China Agricultural University, Beijing l O0193,China; 2.State Key Laboratory of Animal Nutrition, Beo＇ing 100193, China; 3.National Astronomieal Observatories, Chinese Academy of Sciences, Beo＇ing 100012, China）
High temperature in summer will cause serious impact on the production performance of pigs. So it is very important to control temperature in the pig houses in Beijing, China. An experiment was conducted to compare the cooling effect of the water pad-fan and only fan in pig house in Beijing from July 24 th to August 11 th, 2015. Before testing the cooling effect, a manual test system for measuring fan ventilation rate was designed and applied to check if the ventilation rate of the experimental pig houses was appropriate. The water pad-area for the experimental pig house was checked too. A total of 188 finishing pigs（
ISSN:1002-6819
DOI:10.11975/j.issn.1002-6819.2017.07.026