江西省奥体中心游泳跳水馆暖通设计
摘要:对江西省奥体中心游泳、跳水馆工程进行简介,对空调冷热源设计、空调通风及采暖系统设计中的一些做法进行介绍和分析。该项目设计中,采用了地源热泵、排风热回收、地板辐射采暖等节能措施;在空调通风气流组织上结合场馆特点进行了合理的规划;采取了一系列综合措施来实现建筑围护结构的防结露。关键词:空调冷热源地源热泵气流组织型式地板辐射采暖 HVAC System Design for Swimming and Diving Gymnasium of Jiangxi Provincial Olympics Sports Center JI Jin-xing The Architectural Design & Research Institute of Tongji Kaiyuan Abst ract : The project of Swimming and Diving Gymnasium of Jiangxi Provincial Olympics Sports Center was briefly introduced. Some techniques in heating and cooling source design and HVAC system design was analyzed. In this project, some measures were adopted for energy saving, including soil source heat pump, exhaust air heat recovery, floor panel heating and etc. Air distribution was designed properly according to the features of architecture. A series of measures were also applied to prevent the building envelope from dewing.
制冷压缩机间接传动与直接传动之间的优、缺点
间接传动,即通过皮带轮传动,其特点是能够尽量发挥电动机高转速、高效率、小尺寸、重量轻的特点。同时,用皮带传动时,压缩机主轴上的旋转不均匀力矩波动会被皮带的弹性吸收,而不致影响电动机,造成电网的电压脉动。但在传动中有能量损失,并需要一定的占地面积,这是不利的一面。 直接传动,即通过联轴器由电动机直接驱动,由于压缩机不均匀力矩的旋转,将直接影响电机的脉动,进而影响电网的电压脉动。因此,必须使联轴器的飞轮矩足够大,以便确保压缩机不均匀力矩旋转,不致造成电机转子的旋转不均匀性超过电机的限定范围。直接传动的优点在于设备简化、占地面积缩小、省掉传动损失这部分功耗,但直接传动要求压缩机与电动机有较高的对中性,尤其是使用把电机转子也充做压缩机飞轮的同步电机时,更是如此。