DefinitionA <DOUBLE PIPE SCRAPED SURFACE HEAT EXCHANGER> is a <SCRAPED SURFACE HEAT EXCHANGER> that is a <DOUBLE PIPE HEAT EXCHANGER> in which rotating blades continously remove crystallised or high viscous material from the inner pipe surface
A double pipe heat exchanger usually consist of a jacketed inner pipe with a rotating dasher holding rows of scraper blades. The product is pumped through the inner pipe while the heating or cooling medium is circulated between the inner pipe and outer pipe. The medium can be steam, water or refrigerant.