RESEARCH ON VERTICAL WATER-COOLED CONDENSERS OF FLUIDIZED-BED OF INTERNAL CIRCULATION WITH BUBBLE CAP PLATE

摘要

The authors have developed a new fluidized-bed technique for vertical water-cooled condensers that substitutes bubble caps for sieve plate, in order to solve the problem that some of sieve holes will be blocked up after long operation. The technique key is that the internal circulation must be uniform and fluidized-bed must be stable after using the bubble caps. The experimental research shows the fluidized-bed layer at the bottom chamber must be enough thick and in the range of 260～280mm; the cooling water spurts from the bubble cap at the flow velocity of 5m/s; each bubble cap can ensure the fluidized-bed uniform in the range of less than the diameter of 345mm. Its industry application shows that the cooling capacity is increased by nearly once and the result of saving water and electricity is considerably higher using the new technique.