| 摘要 |
FIELD: heat power engineering. ^ SUBSTANCE: invention can be used in chimney-type and mechanical-draft cooling towers of industrial plants to provide uniform distribution on cooled water over spraying area, both with spraying upwards and downwards. Proposed universal spraying device contains supply branch pipe to which uprights adjoin, adjoining, in their turn, streamlined deflector provided with sills. Conical deflector of universal spraying device has drain hole in top and inner angle alpha within 90o and 180o pointed to side of supply branch pipe. Supply branch pipe and conical deflector are interconnected by welded to uprights. Sills of different height are made on surface of conical deflector of the same material as deflector, being arranged in staggered order and with tilting to generating lines of conical deflector at angle beta within 90o and 180o and at height from zero to one height of natural non-hindered by sills depth of cooled liquid flow in corresponding places of their location. Upper edges of sills are flat or concave from pressure side of water flow, and on convex side of sill with radius from that equal to sill width to radius of concentric circumference of location of sill on conical deflector. Triangular projections are made from two sides of uprights at a distance from one to two sizes of upright cross section along corresponding generating lines of conical deflector higher than uprights and parallel to generating lines on conical deflector passing through axes of uprights lower than uprights of universal device. Height of triangular projections is equal to depth of cooled liquid flow at beginning of said projection, and at outlet sections guarded at uprights by projections and lower than uprights, heights of sills of each row decrease in height from periphery to center of these sections. Invention improves stability and efficiency of water cooling at spraying both upwards and downwards using one universal spraying device and prevents non-sprayed sectors of spraying cone, provides effective and trouble-free operation of device, ensures against breakage of uprights by water hammer hen starting cooling tower, especially ion winter. ^ EFFECT: improved stability and efficiency of water cooling, increased service life and provision of faultless operation of device. ^ 4 dwg |
