摘要
对使用温控阀的双管系统和使用截止阀的单管跨越式系统进行了初投资比较 ,认为前者增加的主要是阀门费用 ;计算了以煤、燃气、油为燃料时的投资回收年限 ,指出当锅炉的燃料为燃气和油时 ,使用温控阀的双管系统才具有经济上的竞争力和吸引力。
Compares the initial investment of the two pipe heating system involving thermostatic regulating valves and that of the one pipe series loop heating system with stop valves. Considers that the main part of the cost increased of the former is related to the valve. Calculates payback periods of investment for three kinds of fuel. Summarises that the two pipe heating system with thermostatic valves is more economically attractive and competitive only when the boiler is oil and gas fired.
出处
《暖通空调》
北大核心
2000年第6期77-78,共2页
Heating Ventilating & Air Conditioning
关键词
温控阀
双管系统
初投资
thermostatic regulating valve
two pipe heating system
initial investment
