Patent ID: 7258328

Claim:
A method for designing spray holes formed through spray planes of radial distributors, connected with a hub, positioned in a mass transfer vessel filled with various filter medium layers installed in water treatment equipment, chemical equipment, or environmental equipment, to uniformly distribute the flow quantity of a fluid, wherein: the number L n of divided spray planes of one radial distributor positioned at the radius of the vessel satisfies below Equation [16]; positions H n of the spray holes arranged in a line or plural lines on the divided spray planes and separated from each other by intervals, which are gradually decreased from the hub to the edge, are determined by below Equation [18]; and the total number N TH of the spray holes and the diameters D H of the spray holes are respectively determined by below Equations [19] and [23], L n = n 2 = 1 2 ⁢ ( D n D 1 ) 2 [ 16 ] (Here, n is the number of the divided spray planes on the basis of the diameter of the vessel, i.e., the number of the lines of the spray holes of the distributor including the hub, D 1 is the diameter of the hub, and D n is the diameter of the mass transfer vessel.), H n = x n 2 = ( n - n - 1 ) 4 ⁢ ⁢ D 1 = ( n - n - 1 ) ⁢ r 1 2 [ 18 ] (Here, X n is the width of the divided spray plane positioned between the diameters D n−1 and D n of circles at an interface between spray planes, n is the number of the divided spray planes on the basis of the diameter of the vessel, and D 1 is the diameter of the hub, and r 1 is the radius of the hub.), N TH =N H ×N L [19] (Here, N H is the number of the spray holes formed through each of the distributors, and N L is the number of the distributors.), and D H = q H u × 4 π [ 23 ] (Here, q H is the spray flow quantity of each of the spray holes, and u is the linear velocity of the spray flow quantity.).