建筑热能通风空调
建築熱能通風空調
건축열능통풍공조
BUILDING ENERGY & ENVIRONMENT
2012年
5期
64-65,15
,共3页
异程系统%等温降法%环路
異程繫統%等溫降法%環路
이정계통%등온강법%배로
direct return system%constant temperature drop method%loop
对于热水供暖异程系统,工程设计中常用的水力计算方法是等温降法,且从最远立管环路开始计算。这种方法因为受最小管径的限制,往往难以实现各立管环路之间的水力平衡,而必需借助阀门才能实现水力平衡。本文通过计算实例说明,从最近立管环路开始计算,则可以很好地实现各立管环路之间的水力平衡,而无需借助阀门,并给出了这种方法的计算顺序。
對于熱水供暖異程繫統,工程設計中常用的水力計算方法是等溫降法,且從最遠立管環路開始計算。這種方法因為受最小管徑的限製,往往難以實現各立管環路之間的水力平衡,而必需藉助閥門纔能實現水力平衡。本文通過計算實例說明,從最近立管環路開始計算,則可以很好地實現各立管環路之間的水力平衡,而無需藉助閥門,併給齣瞭這種方法的計算順序。
대우열수공난이정계통,공정설계중상용적수력계산방법시등온강법,차종최원립관배로개시계산。저충방법인위수최소관경적한제,왕왕난이실현각립관배로지간적수력평형,이필수차조벌문재능실현수력평형。본문통과계산실례설명,종최근립관배로개시계산,칙가이흔호지실현각립관배로지간적수력평형,이무수차조벌문,병급출료저충방법적계산순서。
For the hot water heating direct return system, the common hydraulic calculation method of engineering design is constant temperature drop method, which is calculated from the farthest riser loop. Because of the minimum diameter restriction, it is usually difficult to realize the hydraulic balance of every riser loop. Under such conditions, the system can meet the demand of hydraulic balance using valves. In the paper, through a calculation example it is shown that every riser loop is very easy to realize hydraulic balance without using valves when the system is calculated from the nearest riser loop. Besides, the calculation order of this method is given.
