广州塔通风空调设计

HVAC design for Canton Tower

广州塔高600m,外形结构复杂,划分为5个功能区,根据各功能区使用特点,低区采用水冷离心式冷水机组,部分独立运行房间和机房采用分体空调;高区采用模块风冷冷水机组。低区冷水、冷却水系统采用一次泵变频控制,广电机房空调均采用冗余设计,通过消防性能化分析评估加强薄弱环节的消防设施设计,考虑到高空风速大,进排风口设在楼板或屋面下沉壕沟四周,以减小风力的影响。简要介绍了室内外设计参数、空调系统划分、冷热源、水系统、风系统、平时通风系统、防排烟系统以及空调自控设计,并结合工程特点阐述了该项目的设计思路、处理措施以及若干技术难点,根据运行情况总结了通风空调工程的成功与不足。

The Canton Tower has a complex shape structure with the height of 600 meters.It is divided into five function zones.According to the functions of each zone,adopts water-cooled centrifugal water chillers in the lower zones and split air-conditioners in partial independent operation rooms and equipment rooms,and air-cooled modular chillers in the upper zones.Both cooling and chilling water systems use frequency-controlled primary pumps in the lower zones.Redundancy air conditioning design is used in the broadcasting equipment rooms.By performance-based fire protection analysis,enhances smoke control and extraction system design.Considering strong wind in upper air,arranges the supply and exhaust outlets under the floor plate or around the peripheral of the roof sinking trench to reduce the effect of wind power.Presents briefly the indoor and outdoor design parameters,zoning of the air conditioning system,cold and heat sources,water systems,air systems,ventilation in normal times,smoke control and exhaust systems and auto control of air conditioning.Combined with the characteristics of the project,describes the design concepts,technical measures and technical difficulties for the project.According to the operation situation,summarizes the gains and lessons of the HVAC engineering.