Process and cap assembly for cooling glass fibres

摘要

In the cooling of glass fibers there is used a heat exchanger 2 having at least one cap assembly associated therewith. The cap assembly is used for feeding cooling gas to the heat exchanger 2, or for collecting spent cooling gas from the heat exchanger 2, or for supplying a sealing gas to prevent the ingress of atmospheric air into the heat exchanger. The cap assembly has a fiber inlet end 5 with a central opening 7 and a fiber outlet end 6 with a central opening 9. The end 6 is connected by means 11 with a central opening 12 to he heat exchanger 2.l The side walls 4 of the cap assembly have mounted therein part means 8 to allow gas to flow through the side walls 4. The part means 8 comprises at least one hollow bore extending radially out from the side walls 4. The cap assembly is shaped and sized to be removable from the heat exchanger 2. <IMAGE>