Central heated metal shutter for concrete - uses two parallel plates connected by bolts to form divided heat exchanger with steam inlet

摘要

The cellular central heated shutter panel may be used to form precast or in situ concrete slabs to protect the fresh concrete from the cold or to accelerate curing. It comprises two parallel plates (1) connected by bolts (27) at a definite interval, incorporating internal dividing walls, and constituting a heat-exchanger with one or more inlets (24,25,26). Certain walls may have openings which control the rate of flow of the heat-carrying fluid, and some chambers (12,13) may collect post heat-exchange fluid e.g. water. Steam under pressure may enter inlet compartments (3,6,8,11), passing into outlet compartments (4,5,9,10), and finally reaching drainable (22,23) chambers (12,13) in the liquid form.