摘要
对于高海拔地区的调相机项目,冬季室外空气温度偏低,不宜直接进入调相机厂房内冷却设备;采用常规电制热供暖会造成大量能源浪费且效果不佳。某项目通过采用屋顶风机倒送风供暖方案,冬季大部分时间利用调相机设备散热替代集中供暖,极寒天气增加电暖气设备辅助供暖。经过数值模拟和工程实际验证,解决了调相机厂房冬季上热下冷、底层冷风侵入严重、能耗过大的问题,确保严寒地区调相机厂房温度适宜,实现了大空间厂房基于空气动力场与温度场协同作用的供暖模式,节能效果明显。
For synchronous condenser projects in high-altitude areas, the outdoor air temperature is low in winter, so it is not suitable to directly enter the synchronous condenser workshop to cool the equipment. Conventional electric heating will waste a lot of energy and be ineffective. In this project, the roof fan reverse air supply heating scheme is adopted. In most of the winter, the heat dissipation of the synchronous condenser equipment is used to replace the central heating. In extremely cold weather, the electric heating equipment is added to assist with the heating. Through numerical simulation and engineering practice verification, the problems of upper heat and lower cold in winter, serious cold air intrusion in the bottom layer and excessive energy consumption of the synchronous condenser workshop are solved, and the appropriate temperature of the synchronous condenser workshop in the severe cold zone is ensured. The heating mode of a large space factory building based on the synergistic action of the aerodynamic field and temperature field is realized, and the energy-saving effect is obvious.
作者
宋林泉
孙德锋
Song Linquan;Sun Defeng(Shandong Electric Power Engineering Consulting Institute Co.,Ltd.,Jinan)
出处
《暖通空调》
2023年第1期168-172,共5页
Heating Ventilating & Air Conditioning
关键词
调相机
供暖
倒送风
对流换热
高海拔地区
冷风侵入
数值模拟
synchronous condenser
heating
reverse air supply
convection heat transfer
high-altitude zone
cold air intrusion
numerical simulation
