自然通风冷却塔内外圈配水设计与结冰防止

Design of water diseribution of inner and outer circles of natural draft cooling tower and freezing provention

内外圈配水是我国北方地区自然通风冷却塔防止冬季结冰的措施之一,受淋水架构梁柱棋盘形布置的影响,内外圈面积的比例分配不协调,外圈厚度不均匀,造成外圈配水不均恒,薄弱部位容易被风吹透造成结冰,完全棋盘形布置的配水系统已经不适应内外圈配水的要求。合理的内外圈面积分配以及等厚的环形配水布置既有效的改善了外圈配水的不均恒,又取消了配水槽的双层断面形式,解决了配水槽占用淋水填料面积影响通风面积的矛盾,使得自然塔内外圈配水的布置形式趋向于更合理。

Water distribution in the inner and outer circles is one of the measures taken to prevent the natural draft cooling towers in our northern areas from freezing.Affected by the chequered arrangement of the beam and column for the trickling frame,there is no good proportion between the areas of the inner circle and outer circle.The uniformed thickness of the outer circle results in unevenly water distribution in that area so that the thinner part might be freezing.Thus,the water distribution system arranged in...