风速法计算加压送风量的探讨  

Discussion of Wind Speed Method to Calculate the Pressurized Supply Air Rate

作　　者：焦宏照[1] 

机构地区：[1]郑州大学综合设计研究院,郑州市45000

出　　处：《建筑热能通风空调》2012年第5期78-80,共3页Building Energy & Environment

摘　　要：本文依据各个规范加压送风量的规定,进行归纳总结,提出了对规范的疑惑。通过风速法对加压送风量进行计算,与规范比较,认为规范规定风量的计算中,风速取值可能偏小。对风速法计算中风速取值、背压系数取值、漏风系数取值、门规格的统一提出了自己的建议。而且认为在对防烟楼梯间和前室或者合用前室分别加压送风时,应整体计算总送风量;规范备注中应先规定门洞口风速,后规定门数量的修正系数。This paper summarizes the pressurized supply air rate according to the provisions of each code and points out the confusion of the code. Through comparing the wind speed method to calculating the pressurized supply air rate with the code, the author thinks that during the calculation of the air rate in the code, the value of wind speed might be smaller. Besides, the author put forward its own proposals on wind speed value, back pressure coefficient, leak air coefficient and door the unity of the specification. And the author also considers that the general air supply volume should be whole calculated in the circumstances of separately pressurization air supply to anti-smoke stair-half, antechamber or common antechamber and that the remarks of the code should firstly specify, the wind speed of door opening, and then specify the correction factor of the number of the door.

关 键 词：机械加压送风 风速法 送风量 漏风系数 背压系数 

分 类 号：TU834.2[建筑科学—供热、供燃气、通风及空调工程]