Low Temperature Multiple-effect Seawater Desalination Device Analysis And Fault Diagnosis

Through to the domestic low-temperature multiple-effect desalination device in the production operation problems are studied and analyzed, on the low-temperature multiple-effect desalination device load adaptability, heat exchanger, an evaporator scaling tendency of water production decline trend and energy saving, economic analysis, device corrosion resistance evaluation, selection of key equipment on the life span of the device plays a key role in. Its reliability and service life are deeply researched and discussed, according to the concentration of seawater from the design value, research and volume of seawater, seawater circulation adjustment to reduce the operation cost of the device MED, analysis of the results of the study conclusion to the operation of a good guide, the low-temperature multiple-effect desalination unit in North area of China in the development of more practical significance. Through the low temperature multiple-effect seawater desalination device key parameter influencing factor analysis and research, through effective means of monitoring, reflect the equipment operation working condition, the evaluation of its performance index deviate from the designed value trend, achieve the equipment condition monitoring, so that in the controllable range. Mainly through the operation of metal corrosion, thermal compressor load adaptability, by soda process optimization design, to achieve the long-term stability of high load operation, by monitoring the analytical evaluation method development present situation, including fatigue, creep interactive life assessment method and the method of life assessment based on damage mechanics, on the low temperature multiple-effect seawater desalination using life and reliability to do further study, restrict low-temperature multiple-effect desalination development is the main factor in the problem of energy consumption, the quality of steam also decides its economy, suit one’s measures to local conditions of water resources development, is our country development of seawater desalination industry the route one must take.