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摘 要
本设计是上海市某酒店空调工程设计，酒店共六层，建筑总面积11476㎡，空调面积为7710㎡，其中一层不做设计要求。空调区夏季冷负荷为411.48kW,冬季热负荷为312.98kW。根据房间功能，确定出了空气—水、全空气系统在该酒店的具体应用场所。考虑到经济性以及可行性，得出了一套空调系统方案，并针对此方案进行了水力计算、设备选型等。对于消声减震也做了一定的设计。
在风系统设计中，二层餐厅以及五、六层多功能厅属于高大空间场所，采用全空气一次回风系统。舒适性空调系统，采用机器露点送风，省去了再热量。空调机组放在机房或吊装在走廊。对于二层的套房、办公室和三至四层的商务用房，由于其空调负荷变化较大，且各个房间的朝向、使用时间不同，采用风机盘管加新风系统。新风处理到室内等焓状态点，不承担室内负荷。
在水系统设计中，闭式系统腐蚀性弱、水泵扬程小，系统简单。异程系统管路布置简单，阻力通过增设阀门来调节。定流量系统不需要复杂的自控设备。根据负荷计算可知，宾馆不需要同时供冷、供热。所以设计中采用闭式、异程、定流量、两管制系统。
结合地理位置，空调冷热源采用了水源热泵机组。
关键词：冷负荷，露点送风，等焓状态点，异程，水源热泵
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ABSTRACT
The design is air conditioning engineering design of a hotel in Shanghai, a total of six hotels, a total construction area of 11476 square meters, air-conditioned area of 7710 square meters, of which layer do the design requirements. Air conditioning in summer cooling load is 411.48, winter heat load is 312.98. According to room function, to determine the air - water, the whole air system in the hotel establishments. Taking into account the economic and feasibility of, and obtained an air conditioning system, and hydraulic calculations, equipment selection for this program. Muffler damping is also a certain design.
In air system design, two-story restaurant and five or six multi-purpose hall is a large space place, the whole air a return air system. Comfort air conditioning system, apparatus dew point air, eliminating the need for re-heat. The air conditioning unit on the engine room or lifting in the corridor. For the two-story suites, offices and three to four business houses, the air conditioning load changes, and the orientation of each room, use of time, the fan coil plus fresh air system. New air handling indoor enthalpy state point, does not bear the indoor load.
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In the design of water systems, closed systems are less corrosive, the pump head is small, simple system. The DRS system piping layout is simple, the resistance through the addition of valves to regulate. Constant flow system does not require complex automatic control equipment. Load calculation shows that the hotel does not require the same time cooling and heating. Closed, different process used in the design, constant flow, the two control systems.Combination of geographical location, cold and heat sources using water source heat pump units
KEYWORDS: cooling load, dew point air enthalpy state point, the
different process, water source heat pump
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