GB203160A - Improved apparatus for cooling oil or other liquids - Google Patents

Abstract

203,160. Burmah Oil Co., Ltd., and Moore, J. Aug. 15, 1922. Cooling oil, &c., plate apparatus for. -The oil or other liquid flows downwardly between hollow plate elements A, B, C through which a cooling- medium such as brine circulates in the opposite direction, the liquid to be cooled being moved by scrapers E, F on a central rotating shaft 23 so as to pass alternately through central openings 37 and circumferential openings 34 in the hollow plates and the structure being intended to be filled completely by the liquid passing through it for cooling. The plates have internal baffles 47, Fig. 4. and peripheral flanges 32 forming distance members, and the cooling-medium flows from one plate to the next above it through ports 59, 43, Figs. 7 and 8. Each plate is fitted with a cleaning door 48, Figs. 4 and 11, over an opening provided for removing the core sand after casting. The apparatus may be assembled or dismantled by passing the plates one at a time over the upper end of the shaft, whereby only a small amount of head room is required, and the plates are secured together by longitudinal bolts 22 engaging lugs at the edges of the top and bottom plates. The top and bottom plates are provided with air-cooling ribs 57. The scraper arms 60, Figs. 16 and 17, are provided with inclined ribs 36 notched to receive lugs 62 on blades 61, and have blades 64 at the extreme ends. The scraper shaft is fitted with a detachable worm wheel 25 rotating above an oil tray 58 and gearing with a worm 27. The shaft is connected by a coupling 50 with a footstep 51 mounted in a hydraulic bearing 49, the fluid pressure being sufficient to support the weight of the shaft and scrapers. The footstep may be removed by lowering the coupling from the reduced end of the scraper shaft. The cooling structure may be enclosed by a heatinsulated casing.