MODULAR OXIDATION CHAMBER

摘要

An oxidation chamber used for irradiating an incoming liquid containing unwanted organic pollutants has a structure that facilitate automatic self-cleaning at intervals. A modular construction is used, and three basic types of modules (12, 14 and 16) are employed. One of the modules (16) is a TEFLON~lined carbon steel pipe throug h which a shutting scraper is forced at interval. The shuttling scraper includes an annular wiper (60) that simultaneous ly cleans the inside surface of the surrounding tubular module ( 16) as well as the outside surface of an enclosed quartz tube ( 36). The annular wiper sealingly engages the quartz tube and the tubular module so that it is driven like a piston by the full pressure of the liquid. When the shuttling scraper has reached the end of the tubular module, it parks itself in a position that causes only minimal pressure drop.