In the selection of the air conditioning scheme, the main study and Research on the fan coil and air (air water system) commonly used in the hotel style building are made, and the geographical environment of Ningbo and the types and uses of the building are considered, and the final selected scheme is air water system. The design of air conditioning wind system is combined with the design requirements of the indoor state parameters, consulting the relevant design data, drawing the enthalpy and moisture diagram of the fan coil, determining the indoor air supply state, and the process of air treatment. In the design of water system, first of all, according to the location and structure of the building of the hotel, and according to the size and requirement of air conditioning load, two Shanghai GREE LSBLGRF_M/NbA series air-cooled screw sets are selected, and the position of the machine room is determined on the top of the podium. The water supply mode of frozen water system is used in different programming systems. The system has the advantages of simple system, less pipe material, small construction difficulty, less hydraulic loss and lower water pump cycle pressure.

In the design of water system, first of all, according to the location and structure of the building of the hotel, and according to the size and requirement of air conditioning load, two Shanghai GREE LSBLGRF_M/NbA series air-cooled screw sets are selected, and the position of the machine room is determined on the top of the podium. The water supply mode of frozen water system is used in different programming systems. The system has the advantages of simple system, less pipe material, small construction difficulty, less hydraulic loss and lower  

water pump cycle pressure.

The terminal equipment selection is based on different types of rooms, different sizes of load requirements, and according to specific performance parameters, including air supply, cooling capacity, water flow and noise requirements, selected three kinds of Shanghai GREE G series horizontal dark mounted fan coil unit, and combined with the actual engineering requirements of the product. The force is corrected and calculated to determine that the terminal equipment meets the design requirements. The selection of the new fan is based on the requirements for the new wind of different types of rooms, and in accordance with the requirements of noise, the BFPX_W series of new wind units of the joint Carrier Air Conditioning Co., Ltd. (Shanghai) are selected.

The selection of the frozen water pump is based on the draft of the system, and the most unfavorable pipe section is determined, and the hydraulic calculation by the assumed velocity method is adopted to get the hydraulic loss of the pipe diameter and the whole pipeline, and the pipe diameter is adjusted to the large hydraulic loss pipe section of the pipeline, and the reasonable total hydraulic loss is obtained. Then, according to the relevant calculation formula, the flow of the system and the lift required by the pump are obtained. Finally, three centrifugal pumps are selected according to the flow and lift, combined with the characteristics of the machine room, and the requirements of the relevant specifications and design manuals.

After the design of the drawings, the contents of the drawings, the content of the plane, water system plan, wind system plane diagram, and water system schematic diagram, and according to the drawings design requirements to write the drawing catalogue, construction instructions and so on. Finally, combined with the steps and contents of the design, the design instructions are written and modified in detail for reference to the detailed information of the design.

目录

1 空调负荷计算 1

1.1 空调负荷计算方法的发展 1

1.1.1 谐波反应法 1

1.1.2 冷负荷系数法 1

1.1.3 室内空调设计参数 2

1.2 冷负荷计算 2

1.2.1 夏季冷负荷计算依据 2

1.2.2 西外墙瞬间变化变传热引起的逐时冷负荷 3