Based on high-rise buildings, highways, high-speed rail, tunnels, hydropower, dams, bridges, hydropower stations and other projects mostly in the construction of large volume concrete, to ensure that in the thickness of the concrete structure will not produce cracks, to improve the quality of the project needs to reduce the hydrothermalization of concrete and the pouring temperature, especially in the high temperature season is more obvious. Chiller equipment can supply low temperature chilled water, while cement, stone, yellow sand in the temperature between 20-30 degrees out of good product quality, used to reduce the temperature of concrete out of the machine, the concrete temperature can be reduced to below 15 degrees, so as to ensure the quality of the project.