Water is the basic conditions for the survival of humans and other species, is irreplaceable important resources of people's life. In industrial production, water cooling, evaporation, transfer and a series of function. Industrial water accounts for about 60% of the total water consumption in our country, most of the industrial water is recirculated cooling water, cooling water dosage can reach 85% ~ 85% of total water consumption. Today, the source of energy is more and more diversified, wind, solar, nuclear and other clean energy are gradually join the main energy supply, that is to say, the relative water resources, the energy can be renewable resources. So, can be used to increase the cycle is repeated water electricity, electricity for water, become a trend of the increasingly important in industrial cooling.

More than 50% at present, the north degree of water exploitation, especially in xinjiang, Inner Mongolia, ningxia, gansu, shaanxi and other places, on the one hand, industrial development which progresses by leaps and bounds the huge demand for water, on the one hand is increasingly dried up the water resources and the resulting destruction of ecological environment. Meet the needs of today is to accelerate the development of economy, relieve pressure on the ecological environment or a slowdown in the economy? A chess game decades of planning, the national economy, the industry should be improved in efficiency, promote the development of the society at the same time, also brought local economic simplifying assumptions and the contradiction of the nation's economic integration. How to make the economic development of local simplification is environment can bear, it involves conversion of energy and water.

Closed the industrial circulating water system of more use inexhaustible air as cooling medium, air cooling and auxiliary (about 70%), water (about 30%), through forced ventilation cooling and summer high temperature short circulating water cooling is used to realize comprehensive cooling. This change happened in ten years ago, and now is expanding at an unprecedented speed applications in the field of various industries, especially in chemical industry, electric power, photovoltaic (pv), such as steel, began to show great water-saving effect.

Development needs cost, but if the price is another form of progress, this also is the development, and it is the human progress and development, the development will be in the future to the today's pay and hard work.