赣州市某医院中央空调工程设计.docVIP

PAGE IV 摘 要 本次设计的内容是赣州市某医院全年性中央空调工程的设计，其目的对通过对中央空调系统的设计，来了解中央空调系统的设计流程及具体方法，进而巩固所学的基础知识。首先，查阅设计地点的地理资料得出相应的气象条件，根据当地具体的条件及维护结构计算整个系统的空调负荷。综合空调系统及医院建筑空调系统的使用特点，采用风机盘管加新风系统。全部房间均采用风机盘管加新风系统的方案。新风由新风机组处理到室内焓值，与风机盘管的送风并联送出。根据系统所需新风量，计算风管管径及风机所需余压选用新风机组。再根据系统所需冷量选取两台水冷螺杆式冷水机组，为了提高水力稳定性，使流量均匀分配，水系统管路在分集水器之间设置了旁通管和压差平衡阀。另外还阐述了空调系统的消声和防振，使之运行达到经济合理的要求。同时，在相应的计算过程中，根据设计的过程及计算结果运用CAD绘制各层空调水系统平面图，空调风系统平面图、水系统余力图、制冷机房平面布置图、冷水机组系统流程图等。 通过本次设计使室内环境得到改善，达到了设计要求。 关键词　中央空调系统；风机盘管；新风系统；水系统；室内焓值  Abstract The design of the Ganzhou a hospital in the year-round central air-conditioning engineering design and its purpose through the design of central air conditioning system, central air conditioning system design process and specific methods, thereby strengthening the basics of learning. First, the geographic access to design location always talk to draw the appropriate weather conditions, according to the specific local conditions and to maintain the structural calculations of the air conditioning load of the entire system. Use characteristics of air-conditioning systems and hospitals building air conditioning systems, fan coil plus fresh air system. All rooms are fan coil plus fresh air system programs. The new wind from the new air handling unit to the indoor enthalpy, send air in parallel with the fan coil. According to the required fresh air, the calculated duct diameter and fan residual pressure required the use of new air handling unit. Two water-cooled screw chiller is selected according to the system cooling capacity required, in order to improve the hydraulic stability of the uniform flow distribution, the water system piping set in the sub-catchment between the bypass pipe and pressure balance valve. It also described the muffler and vibration of the air conditioning system to make it run the reasonable requirements of the economy. Meanwhile, in the calculation process, according to the design process and the calculation results using CAD drawing layers of air-conditioni