Study On The Energy-saving Technologies In The Hong Kong-Zhuhai-Macao Bridge Operator Ventilation

China is a big country of energy consumption and production, on the one hand, the relative shortage of resources, on the other hand, the low energy-efficiency, and serious wasted. So the quality and efficiency of economic growth is not high, our government has put forward a new period of rapid economic growth-policy of building a resource saving society.With a lot of long highway tunnel construction and ventilation of long tunnels will be a energy-hungry in the tunnel operation. It is necessary for the operation of the tunnel ventilation, energy-saving technologies, so as to achieve the goal of "energy-saving". Immersed tube road tunnel project to the long6km Hong Kong-Zhuhai-Macao Bridge as the background on the operations of it’s Tunnel ventilation energy-saving technologies, the main contents can be listed as follows:(1) Combined the existing inverter technology with control theory that the research scholars at home and abroad research on, we study on the inverter technology and energy-saving of the axial flow fan. Combined field measurement with numerical simulation, the parallel inverter fan stall and control optimization has been studied.(2) With the numerical simulation based on pollutant transport mechanism of the tunnel entrance, the length of the Hong Kong-Zhuhai-Macao Bridge tunnel wall and the shading shed opening area has been studied. Studies have shown that the opening area of shading shed opening area and the wall length can greatly reduce the stream of the air pollution around the tunnel entrance.(3) Due to the rich resources of the sea breeze of the Hong Kong-Zhuhai-Macao Bridge project, according to the principle of natural ventilation, we describe the principle of the devices that automatically catch the fresh air and expel the pollute air. Also we both simulate the device performances and research on its unit of energy-saving that applied on the tunnel.(4) By the above energy-saving technologies, the energy efficiency of the Hong Kong-Zhuhai-Macao Bridge’s operation has been analyzed.Above all the research, the fans applied on the tunnel with frequency control technology can significantly reduce the costs of the operation in the tunnel ventilation. The appropriate shading shed opening area can greatly reduce the pollution around the tunnel entrance air stream, reducing the air volume requirements in the tunnel, therefore reducing the ventilation costs. The automatically ventilation device is applied in the tunnel can catch the fresh air with zero energy...