Plunger -type layer flow cooling system .

摘要

The present invention provides a plunger-type layer flow cooling apparatus having a cooling device several groups, the cooling apparatus of each group, a manifold number of nozzles disposed thereon, to both ends of the manifold a two plungers tubes arranged in parallel, adjacent ends of said two plunger tube are both closed ends, and the nozzle by a number of through-holes arranged in their walls and connected to said two plungers tube, wherein a plunger two plungers respectively disposed within the tube, the plunger is moved axially in order to close the through hole, an outer diameter the plan and a perfect fit the two of the plunger to the inner diameter of the jar tube, the plunger-type layer flow cooling device, the plunger in the direction opposite to each other by the plunger tube, or as to move in the opposite direction also it includes some of the driving device for driving. The cooling apparatus uses a slight cooling water in order to guarantee a plate shape in the width direction of the temperature drop a reduced steel strip at the edge portion of the band steel, mechanical performance, the homogeneity of the temperature and the phase change It can establish a gap layer flow corresponding to the width of the passage of the strip according to the needs of cooling the steel strip of different width.