The comfort air conditioning system, refrigeration, heating and cooling water systems of the three major venues and outbuildings provide seasonal air conditioning for the main venue, training hall, public activity center, administrative building and restaurant according to the building use and owner's requirements; Cold outside, providing air conditioning heating for administrative management buildings, restaurants and some fitness training venues; equipment storage room, hydropower equipment room, changing room, bathroom, garage and technical passage ventilation system; three major venues and ancillary buildings, technical channels Fire smoke extraction system.
Air conditioning heat load The total heat load of the project is 2, of which air conditioning heating, supply of domestic hot water includes a hot water 22 in the swimming pool. The air-conditioning air system adopts an air-conditioning system with a large air-conditioning unit for air supply in most large-sized rooms. The fresh air is cooled by the fresh air treatment machine, the fresh air heated by the dehumidification winter, or the fresh air directly introduced from the outside, according to a certain proportion and return air. After the air treatment machine is thoroughly mixed in the mixing section, it is filtered, cooled and heated, and then sent to the room. The system mainly includes restaurants, warm-up and training rooms, VIP reception halls, entertainment halls in the public halls, multi-functional conference rooms, public entrances and exits, walkways, etc.
For the room with small space, the air-conditioning system with fan coil and fresh air is adopted. After the fresh air is filtered, dehumidified and cooled by the fresh air treatment machine, it is sent to each room by the air duct, and sent together with the return air treated by the fan coil. Enter indoors. The system mainly includes an administrative building, a dressing room, a VIP lounge, an office, a sauna, a fitness and fitness center, and a billiard room.
The auditorium and air-conditioning system under the seat is used in the auditorium and the competition venue of the main stadium. After the fresh air treatment machine is processed, the fresh air design dry bulb temperature 3 is mixed with the return air in the mixed air box according to a certain proportion. After the air treatment machine is cooled, the designed dry bulb temperature 013 is directly sent into the concrete air passage through the audience. Under the seat, the porous air supply panel is delivered at a low speed of 2,456, and the louver is set back to the wind above the side channel of the auditorium. At the same time, the fan exhausted on the grid at the top of the stadium is opened.
The swimming pool in the training hall adopts a new air conditioning system. After the fresh air in the summer is cooled and dehumidified by the cold coil, the heat of the exhaust air is reheated through the sensible heat exchanger and then sent to the indoor; the fresh air in the winter is firstly exhausted by the sensible heat exchanger, and then heated by the hot coil. Entered the hall.
Air-conditioning water system This project adopts four-tube refrigeration hot water pipeline system. The chilled water is supplied by the energy center freezing main room. The heating and domestic hot water is supplied by the boiler room. The hot and cold water pipes are connected to the air conditioning end of each building through the technical channel or Three-stage pump. Among them, the chilled water and hot water supply pipes are dedicated to the main venue, and the other is used for other venues and ancillary buildings.
The chilled water and hot water system adopts large temperature difference chilled water for returning water temperature, ie 133, primary hot water return water temperature 33, and secondary hot water supply for heating, returning water temperature 133. The main venue uses a three-stage pump chilled water system. The other venues and buildings use a two-stage pump chilled water system. The two-stage pumps are all connected in parallel with the variable-frequency pump, and the third-stage pump is also a variable-frequency pump. The mixed water is specially supplied to the lower air supply. Dry working air handling unit or lifting pressure. The hot water system is a three-stage pump system, in which the second and third stage pumps are all variable frequency pumps, the third stage pumps are secondary hot water systems, and the hot water tertiary pumps also function as mixing water and increasing pressure. In the upper point of the system, the chilled water expansion tank and the hot water expansion tank are respectively set up on the surface of the administrative management building. The main roads of the hot and cold water are all equipped with a two-pipe circulatory system.