High viscous fluid heat exchanger

Patent · Tue Jul 20 04:00:00 EDT 1993

OSTI ID:6345553

Smith, D W.P.

A heat exchanger is described comprising: an outer enclosure; an inner surface positioned within the outer enclosure to create an annular heat transfer passage having an inner wall defined by the inner surface and an outer wall defined by the outer enclosure for receiving a fluid to undergo heat exchange; means for effecting heat exchange with the annular passage; inlet and outlet passages communicating with the annular passage to allow for introduction and removal of the fluid to undergo heat exchange; scraper means comprising one or more helical members dimensioned to fit within the annular passage; a plurality of connecting members extending between adjacent coils of the helical members at spaced intervals along the length of the helical members, the connecting members and the helical members cooperating to define a plurality of discrete unsealed chambers within mid annular passage; and scraper blades attached to the connecting members to engage and scrape both the inner and outer walls of the annular passage; the scraper means being rotatably mounted within the annular passage for rotation by the pressure exerted by the fluid to undergo heat exchange so as to scrape the annular passage and guide the fluid to undergo heat exchange from the inlet passage to the outlet passage along a predetermined path within the annular passage whereby the fluid undergoes heat exchange during travel through the annular passage.

• Assignee: IMS; EDB-93-107442
• Patent Number(s): US 5228503; A
• Application Number: PPN: US 7-904286
• OSTI ID: 6345553
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
ANNULAR SPACE
AUGMENTATION
CONFIGURATION
ENERGY TRANSFER
FLUIDS
HEAT EXCHANGERS
HEAT TRANSFER
SPACE
WORKING FLUIDS