Chemical oxygen generator

摘要

A metallic tubular housing (40) contains cylindrical thermal insulation (36), a candle holder (38) for an oxygen-generating candle (32) and a candle support (52). A corrosion, reaction and heat resistant first support means (38', 38", 138) to said oxygen generating candle (32) is cup-shaped, its bottom being on the side of ignition means (F',F") of the apparatus covers all of said oxygen generating candle (32) through the cylindrical thermal insulation (36). An annular airtight space (39', 39'', 139) for the oxygen generating candle (32) is formed between the first support means (38', 38", 138) and the tubular housing (40). Oxygen generated by thermal decomposition of the candle (32), following triggering of the ignition device (F'), passes through the cylindrical thermal insulation (36) and an annular gap between the cylindrical thermal insulation (36) and the cylindrical member (37), and is supplied to the outside through an oxygen-supply device (S'). Thorough decomposition of the candle (32) can be achieved, as can a predetermined quantity or flow rate pattern of the oxygen, lowering the temperature of the housing (40) throughout its length.