After the indoor heat gain problem was modified and modified, the exterior wall decoration of the building was changed from ordinary brick to glass curtain wall, the hollow floor of the podium was added, and the hemispherical glass zenith was set on the roof of the podium. Due to changes in the envelope structure and an increase in the area of ​​the outer window, the air conditioning load is increased. There are more smokers in conference rooms and leisure and entertainment places. In order to improve air quality, the amount of ventilation is increased, and the cooling load is also increased. The problem of insufficient room cooling is solved by increasing the air supply volume and adding a fan coil system. However, some rooms have not solved the thermal comfort problem of the room by increasing the cooling capacity, and the system has a small amount of cooling capacity, which is difficult to meet the requirements of comprehensively improving the cooling standard. Therefore, a pipeline return air system is installed in the ceiling and Good system insulation to reduce cooling loss. After the retrofit of the return air system, the thermal comfort of each room is greatly improved. After the system cooling capacity calculation hotel was renovated, the cooling capacity increased greatly. After the system cooling capacity was calculated, a refrigeration equipment was added, with a cooling capacity of 349 kW and a cooling tower. Due to the increase in cooling capacity, the area is mainly concentrated in the 1st and 3rd floor podiums. Therefore, the chilled water system is specially designed for the combined air conditioners, new air blowers and fan coils in some areas of the podium and underground 1st floor air-conditioning system. Air-conditioning automatic control system setting The hotel adopts the whole building automatic control system to realize computer control of air-conditioning water and wind system. The treatment of cooling tower noise and splashing water has completed the construction of sound absorption and sound insulation and noise reduction for the cooling tower. Regarding the problem of water-spraying on the cooling vent, under the premise of not affecting the cooling effect of the chiller, the amount of circulating water is appropriately reduced, and the direction of the venting is appropriately increased, and the direction of the cooling vent is changed, and the noise treatment project is combined with the noise treatment to solve the problem. However, the noise reduction barrier device has a large outer shape, so the outer surface is appropriately decorated to match the appearance with the leisure environment of the skirt floor. After the treatment, the noise and splashing problems were significantly improved, and passed the acceptance of the corresponding competent authorities. Despite this, the low noise and thin water fog problems still affect the comfort of hotel guests on the 4th floor of the podium roof. This problem has not been cured. I have considered moving the cooling tower away from the podium roof (moving to the tower roof), but it was not implemented due to conditions such as the venue. In the future civil air conditioning design of residential buildings, the cooling tower can be considered to be placed on the roof of the tower to better solve the problems of environmental noise, thermal pollution and appearance. After the above-mentioned renovation of the hotel's air-conditioning system, it has been put into use for nearly two years, and the property management company has reported that the operation effect is better. Brass Wire Mesh,Antique Brass Wire Mesh,Brass Wire Mesh Screen,Fine Brass Wire Mesh glorybest industry co.,ltd , https://www.glorybestfilter.com