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针对目前地下车库变风量系统中常用的间歇控制法和双速风机法存在的控制过于简单、不能很好地改善地下车库内的空气品质、不能最大限度地节能的问题,提出了根据车库内CO浓度的实时变化情况,采用风机变频控制地下车库通风量的方法。介绍了某地下车库通风系统的风机变频控制改造工程。结果表明,风机变频控制改造在技术上是可行的,能节约电能,且投资回收期较短。
Aiming at the problems that the existing intermittent control method and double-speed fan method commonly used in underground garages are too simple, can not improve the air quality in underground garages, and can not maximize energy-saving, it is proposed according to the CO in the garage. The real-time changes in concentration, the use of fan frequency control underground garage ventilation method. Introduced an inverter control system for the ventilation system of an underground garage. The results show that the transformation of fan frequency conversion control is technically feasible, can save energy, and the investment recovery period is short.