基于辐射供热和个性化送风的分娩猪舍环境保障系统  

Thermal environment regulation and energy consumption of delivery pigsty based on radiation and personalized ventilation

作　　者：刘营芳 黄子硕 Liu Yingfang;Huang Zishuo(College of Architecture&Urban Planning,Tongji University,Shanghai 200092,China)

机构地区：[1]同济大学建筑与城市规划学院,上海200092

出　　处：《农业工程学报》2022年第2期260-268,共9页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国网总部科技项目:面向智慧能源服务平台的乡村供用能云边协同管控技术研究(521820210009)。

摘　　要：为解决目前分娩猪舍内环境调控系统能耗大,传染病交叉传染风险高的问题,将人体热舒适理论应用于养殖动物,提出应用辐射供能和局部送风技术进行母猪分娩猪舍的环境调控。该研究结合工程案例,基于CFD软件对安装新型环境调控装置的产房内动物体感温度和空气流动进行了模拟仿真分析,并同常规空调系统的全年能耗指标进行了计算和比较。结果表明,通过辐射供能和上送下排局部送风技术,可以在确保动物所处围栏内空气温度适宜(16~27℃)的同时减少排风热损失,系统能耗相较于传统的湿帘风机系统可降低42.04%。该系统可在节约能源的同时优化猪舍内气流组织,减小动物间传染病交叉感染风险。The temperature,humidity,and cleanliness of the air in the delivery pigsty have posed an important impact on the safe delivery and the survival rate of piglets.However,the energy consumption is too high in the conventional air-conditioning system that mainly heats and cools the air,due to the harsh requirements of fresh air,and heat loss of the exhaust air system in the pigsty.Once the air turbulence was over-loaded in the air-conditioning,there is an increasing risk of cross-infection of pigs.In this study,an environmental protection system was proposed using radiation and personalized ventilation,particularly extending the human thermal comfort to farmed animals.A simulation analysis was performed on the air temperature and air flow under an engineering case in the delivery pigsty.The energy consumption index was determined in the environmental protection system using computational fluid dynamics(CFD).A DeST energy consumption simulation software was used to calculate the energy consumption of the system,the cooling and heating load.The air distribution was analyzed in the environmental protection system using the CFD software.Moreover,the economic evaluation was made on the modified radiation and personalized ventilation.The results showed that there were an uncomfortable temperature and extremely high humidity in the traditional wet curtain fan system in the delivery pigsty.There was also a large energy consumption of the conventional air-conditioning system for heating and cooling air in the delivery room,which was the well-protected environment.In addition,the sows and piglets cannot be controlled in different areas,especially in the summer,where the sows were supplied with cooling,and the piglets were supplied with district heating,so that both cold and heat loads run at the same time,resulting in the waste of energy.By contrast,the air temperature in the fence was ensured at 16-27℃under the radiation and personalized ventilation technology,and the system energy consumption was reduced 42.04%and 58.54%th

关 键 词：环境调控 温度 局部送风 分娩猪舍 能耗 污染控制 交叉感染 

分 类 号：TU264[建筑科学—建筑设计及理论]