| 摘要 |
1,193,707. Heat exchangers. NEW JERSEY ZINC CO. 18 Sept., 1967 [5 Qet., 1966]. No. 42329/67. Heading F4S. In apparatus for heating a flow of corrosive fluid e.g. inorganic and metallic halides, the flow is divided by passage through concentrically positioned fused quartz tubes 14, 16 of at least 99À9% purity, the outer tube being of radiation transparent fused quartz and using a radiation translucent fused quartz as the inner tube, and exposing both to radiant energy in a gas- or electrically-fired furnace 10. |
