雏鸡舍留温新风换气系统设计与试验  

Experiment and Design of Fresh Air Ventilation System for Chicken House

作　　者：陈辉[1] 仝亚广 张岩 宋将飞 周荣艳[1] 黄仁录[1] CHEN Hui;TONG Yaguang;ZHANG Yan;SONG Jiangfei;ZHOU Rongyan;HUANG Renlu(College of Animal Science and Technology,Hebei Agricultural University,Baoding 071000,China;Shenyang Shenhai Animal Husbandry Co.,Ltd.,Shenyang 110000,China;Hebei Shangfei Agricultural Technology Co.,Ltd.,Shijiazhuang 050065,China)

机构地区：[1]河北农业大学动物科技学院,保定071000 [2]沈阳市沈海牧业有限公司,沈阳110000 [3]河北尚飞农业科技有限公司,石家庄050065

出　　处：《农业机械学报》2018年第11期320-327,共8页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家蛋鸡产业技术体系项目(CARS-40-K20)

摘　　要：为了验证所提出的一种保温、高效且运行成本低的雏鸡舍通风方式,依照热平衡原理,采用留温新风换气系统对雏鸡舍进行通风试验。对安装留温新风换气系统的雏鸡舍进行温湿度、显热交换效率和雏鸡生长性能监测,并且对留温新风换气机进行回收成本分析。试验表明:试验组与对照组的每周温湿度均可达到要求,在第4周时,试验组的空气温度和相对湿度极显著低于对照组(P <0. 01);试验组的二氧化碳质量浓度、氨气质量浓度、PM2. 5质量和PM10质量浓度均极显著低于对照组(P <0. 01),试验组的空气质量和通风效果均优于对照组;留温新风换气机的显热交换效率在夜间(19:00—次日07:00)平均达到80%;两栋鸡舍的雏鸡生长性能无显著性差异(P>0. 05);从热回收效果来看,测试期间室外温度为-8~8℃时,回收成本时间为80 d左右。当室外温度低于19℃时,留温新风换气机可平衡热回收效率及通风需求的关系,能够满足畜禽舍通风量及节能的需求。In order to explore a kind of ventilation method with heat preservation,high efficiency and low operating cost about the chicken house,according to the principle of thermal balance,the fresh air ventilation system was adopted for the ventilation of chicken house,which used a high efficiency gas-air plate heat exchanger.It was different from the traditional plate-fin sandwich type heat exchange core body,but the special design at the inlet and outlet increased the length of countercurrent portion and reduced the length of cross-flow portion.The fresh air passage and exhaust passage were arranged at intervals in honeycomb body.It was a heat recovery ventilation system with low production cost,simple manufacturing process and high heat exchange efficiency.The temperature,relative humidity,sensible heat exchange efficiency,and growth performance of the chicken house were monitored with a fresh air ventilation system installed,and the cost of regenerative fresh air ventilator was analyzed.The test results showed that the temperature and relative humidity of test group and control group can meet the requirements of each week.And at the fourth week,the air temperature and relative humidity in the test group were 24.91℃and 48.96%,respectively,which were significantly lower than those in the control group(P<0.01).At the fourth week,the carbon dioxide mass concentration,ammonia mass concentration,PM2.5 concentration and PM10 concentration in the test group were 2 361.16 mg/m 3,7.28 mg/m 3,12.54 mg/m 3 and 107.58 mg/m 3,respectively,which were significantly lower than those in the control group(P<0.01).The air quality and ventilation effects of the test group were better than those in the control group.The average sensible heat exchange efficiency of the fresh air ventilation system can reach 80%during 19:00-07:00.The fresh air ventilation system can greatly recover the heat from the exhaust gas;there was no significant difference in length and body weight between the test group and the control group(P>0.05),which indicat

关 键 词：雏鸡舍 留温新风换气机 热回收 通风 显热交换效率 

分 类 号：S817.3[农业科学—畜牧学] S831.45[农业科学—畜牧兽医]