Air-conditioning air system design: (1), first and second floor lobby, Chinese and Western restaurant, four-story sauna rest room are large spaces (layer height 4.0m or more), using low-speed all-air system. The air-conditioned machine rooms are all external walls, which are easy to enter the fresh air and are carried out in the transitional season. In the winter and summer, the fresh air and the return air are mixed and processed by the air conditioner. The muffler is sent to the various parts by the low speed air duct, and is evenly sent by the diffuser. The airflow is organized for up and down. (2), three-tier box (RTV), five or six-story massage room, seventy-one floor room, twelve-story office, thirteen, fourteen-story KTV are small open spaces, although the functions are different, but all require noise Low and flexible to use, so use fan coil and fresh air system. In addition to the three-story RTV, two fresh air systems are set up, and the other floors are equipped with a fresh air system. The airflow organization of the third, fifth and sixth floors is sent up and back, and the seventy-four floors are all sent side by side, and the fresh air is processed indoors. After the temperature is passed through the muffler, it is sent to each room by the low speed duct. (3) The four-story sauna dressing room and the second-floor Chinese kitchen are all air-conditioned. The DC air supply system is adopted, and the outdoor fresh air is sent to various parts after being processed by the fresh air conditioner. (4), the fifteen-story dance hall, the height of 5.lm, the beam upturned, the net height of the ceiling 3.sm, also uses the low-speed all-air system, the same, two layers. The air and dance hall of the dance hall is chaotic, and all the surrounding sounds need to be completely enclosed. A low-noise fan is specially designed for exhausting air. (5) The use time and function of the 16-story staff training center and elevator machine room are inconsistent. For the convenience of operation and management, split air conditioners are adopted.

The temperature of the chilled water supply is 7/12C (2). The hot water unit of the building is located in the 17-story boiler room. The designated 1# unit supplies domestic hot water, and the 2# and 3# units supply air conditioning, but the unit is overhauled. For non-heating seasons, 2# and 3# units can be used for 1# units. The hot water unit and the chiller are manually switched between in winter and summer. (3) According to the function and time of use, the water system is divided into four loops: the 1-3 storey lobby and the dining section are all set, the 4-6 storey sauna is all the way, the 7-12 storey rooms and the office are all the way. 13-15 floors KTV, dance hall is all the way. The expansion tank is located on the 17th floor. (4) The air conditioning water system adopts two controls, and the return water riser (dry pipe) adopts an alien process. The 1-6 layer and the 15th horizontal pipe adopt the different process, and the other layers adopt the same process.

Air-conditioning system control: At present, building air-conditioning systems must be equipped with automatic control, but in the specific design, we must consider many factors. This project adopts the following principles from the building standards and user requirements, in line with the principle of “economic, effective and reliable”. Self-control mode: (1) The air-conditioning unit adopts the duct type temperature sensor and the temperature controller and the water-side electric regulating valve (proportional integral adjustment) to ensure the temperature of the room by adjusting the water supply amount. (2) The new air blower group adopts the air duct type temperature sensor and the temperature controller and the water side electric regulating valve to ensure the air outlet temperature of the fresh air by adjusting the water supply amount. (3) The fan coil is equipped with an indoor thermostat and a water-side electric two-way valve, and the temperature of the room is automatically adjusted through the two-way valve switch. (4) Because the end user water system is running at variable water volume, a pressure difference controller between the inner and the water collectors of the freezer room automatically controls the electric butterfly valve on the bypass pipe to adjust the water volume and observe the temperature difference between the inlet and outlet of the chiller. Manually control the start and stop of the chiller and its corresponding chilled water pump, cooling water pump and cooling tower to meet the energy saving requirements under partial load. (5) The hot water unit is equipped with a temperature controller to ensure that the water temperature is stable at around the set value to prevent waste.

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