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Reason analysis of the closed cooling tower water, dirty
Nov 14, 2016

Cross flow closed cooling tower because of its low noise, the advantages of low energy consumption, more and more commonly used in closed cooling tower towers. So-called cross-flow, from the side of the tower into the wind, the air flow inside the heat exchanger and spray water to approximately 90 ° air across the segment and drive overall direction of the cooling water tube in pipe flow and air flow to the contrary, is against State.

Various cross type closed type cooling tower, although for hot module the not same, but has common of features, its biography pipe General for a group by parallel straight tube added u shaped elbow composition of snake type segment, the segment parallel Yu vertical set tube, each segment and horizontal has a small of dip, makes was cooling water entrance side is slightly higher than was cooling water export side, to stopped available water and opened Shi exhaust, while conducive to guide wind (wind machine reset Tower pumping sucking).

For closed fin heat transfer equipment such as cooling towers, in order to avoid Frost crack cold weather segment, decommissioning should be water circulation within the segment. But currently cross closed type cooling tower General exists water speed slow and row not net of problem led to segment frozen crack, addition, due to drainage not net, even no frozen crack, if tube local freezes, hammer phenomenon also may led to boot burst tube, machine fault, so cross closed type cooling tower in reality using in the frozen crack fault frequently, regardless of domestic brand also is abroad brand no a exception.

Resolve this problem within the most basic approach is to segment the water clean segment of study and solve drainage problems, not only for studies on non-steady flow theory, and practical application of value.

We got inspiration from General pipe, drainage, drainage flow or not and the tilt angle of the pipe, drainage piping laying time are required to have a certain degree of inclination. Drainage pipes such as sewage pipes, industrial wastewater pipelines, designs are limited to the minimum slope in the manual and instructions. Based on this, we change the tilt angle of the segment in the experiments, study the drainage of different angles, including the drainage speed over size and how much water. And theoretical analyses have been made on this basis, given solutions.