Selection of inlet and outlet pipes of cooling tower

Seamless steel pipes are generally used for cooling water pipes, and spiral pipes with diameters exceeding DN500 are used.

1, if you want to choose its pipe diameter, you must first find out a data, what is your cooling water volume w, and if the flow of cooling water is not determined now, then the cooling load of the whole building should be there. The load is expressed by q, W= 1.2*Q/c(to-t), where 1.2 is the utilization coefficient.

2. The flow rate, like the passband and selectivity of electrons, cannot be balanced. If the flow rate is fast and the resistance is high, the operation cost will be high. If the flow rate is slow, the pipe diameter will naturally be large and the cost will be high. For pipelines over 200, and the pipeline is not too long, I suggest that the flow rate can be 2-2.5m. 。

With the flow and speed, it is not difficult for you to calculate the pipe diameter. Q= cross-sectional area of pipe diameter * velocity * 3600 (m 3/h). Pipe diameter = π * r 2 π = 3. 142.