燃气中央热水供应系统的设计计算和应用  

Design Calculation and Application of Gas-fired Central Hot Water Supply System

作　　者：张佳 沈威 ZHANG Jia;SHEN Wei

机构地区：[1]深圳市燃气集团股份有限公司,广东深圳18049

出　　处：《煤气与热力》2024年第1期24-28,共5页Gas & Heat

摘　　要：介绍了即热式、储水式、复合式3种燃气中央热水供应系统,重点分析了储水式燃气中央热水系统。考察5家相似酒店的平均热水流量,早晚是用水高峰,白天为谷,夜晚到凌晨热水流量最小。进行分段拟合,得到了目标酒店热水流量曲线呈M形。考虑到设计小时热水量不一定发生在整小时内,根据热水流量曲线,结合积分关系,得到设计小时热水量,其涉及的时间范围可能跨整小时,提高了热水供应系统的保障能力。根据计算得出的设计小时热水量对目标酒店的热水供应系统进行了设计,证明储水式燃气中央热水系统在商业领域具有一定的推广应用价值。Three types of gas-fired central hot water supply systems:instant heating-type,water storage-type,and composite-type are introduced,and the water storage-type gas-fired central hot water system is analyzed.The average hot water flow rates of 5 similar hotels are investigated.The peak water flow rate is in the morning and evening,the valley is during the day,and the minimum hot water flow rate is from night to early morning.By performing segmented fitting,the hot water flow curve of the target hotel is obtained in an"M"shape.Considering that the design hourly hot water consumption may not necessarily occur within an entire hour,according to the hot water flow curve,combined with the integral relationship,the design hourly water consumption can be obtained,and the time range involved may span the entire hour,which improves the guarantee ability of the hot water supply system.The hot water supply system of the target hotel is designed according to the calculated design hourly hot water consumption,which proves that the water storage-type gas-fired central hot water system has certain promotion and application value in the commercial field.

关 键 词：燃气中央热水供应系统 燃气热水器 设计小时热水量 整小时 

分 类 号：TU822[建筑科学]