空调水系统管道固定支架及热补偿设计

Design of Fixed Support and Heat Compensation for Air Conditioning Water System

介绍了工程设计中空调水系统管道固定支架和热补偿设计的常见问题,并给出了关于固定支架、自然补偿、波纹补偿器的计算和设置方法。在设计中应优先考虑自然补偿,包括“L”型补偿和“Z”型自然补偿,在自然补偿不满足时,应根据工程实际情况,合理选用和设置补偿器,其中包括方形补偿器和波纹补偿器,以有效保障水管系统、固定支架、结构的安全性和稳定性。经计算,在空调立管热伸缩量不超过允许值,即空调立管长度不超过110 m时,应尽量不采用波纹补偿器而采用立管中间设固定支架的形式,可以减少固定支架的推力。而固定支架的设置,尤其是大口径空调水管固定支架,应重点关注其推力计算、安全性以及防冷桥设计等问题。

The common problems about fixed support for pipe and compensation of thermal expansion of air-conditioning water system in the engineering design are introduced, as well as the calculation and setting method of fixed support, natural compensation, corrugated compensator, while the priority should be supplied to the natural compensation in the design, including “L” compensation and “Z” natural compensation. If the natural compensation is not enough to absorb piping expansion amount, the corrugated compensator should be selected and set reasonably according to the actual project, including square compensator and corrugated compensator in order to effectively guarantee the safety and stability of water pipe system, fixed support and structure. It is calculated that when the thermal expansion of the air conditioning standpipe does not exceed the allowed value, that is, when the length of the air conditioning standpipe does not exceed 110 meters, the corrugated compensator should not be used as much as possible, substituting with a fixed bracket in the middle of the standpipe, which can reduce the thrust of the fixed bracket. The setting of fixed brackets, especially large-calibre air conditioning water pipe fixed brackets, should focus on its thrust calculation, safety and anti-cooling bridge design.