Based On The Condenser Water-saving Research, Strengthen The Heat Transfer Technology, The Circulating Water System

Water consumption of circulating-water system in power station which occupies a great proportion of the total water consumption should be paid more attention. In addition, water-saving techniques of cooling water system can not only save a great deal of water resource, but also decrease discharge of sewage, from which the development of economy and environment can benefit. Therefore, the research on water-saving of circulating cooling water system is very important for engineering application.Undoubtedly, the purpose of saving the circulating-water can be realized by means of increasing the concentration multiplying factor. However, the above measure will be harm to the water quality subsequently, which raises the tendency of fouling at the water side of condenser. The previous researches focus on developing new type of water treatment agent, which swells the generating cost although the fouling can be avoided. Hence, in this thesis the method to increase the concentration multiplying factor was put forward in virtue of the enhanced heat-transfer technique which can make up for the part of heat exchange reduced due to the fouling on the surface of condenser. Thus, the purpose of saving water can be achieved without decreasing the heat-transfer performance.Firstly, in this thesis the previous achievement regarding heat-transfer enhancement of condenser was introduced in terms of the measures on increasing heat-transfer coefficient of steam side and reducing circulating-water temperature at the inlet of condenser. Secondly, based on the invariant condenser vacuum warranty and heat transfer enhancement of condenser, the definition of critical fouling resistance...