The mechanical engineering of steam power plants by Hutton Frederick Remsen 1853-

Author:Hutton, Frederick Remsen, 1853- [from old catalog]
Language: eng
Format: epub
Tags: Mechanical engineering, Steam power plants
Publisher: New York, J. Wiley & sons; [etc., etc.]
Published: 1897-03-25T05:00:00+00:00

charge by perforated diaphragms, wire netting, layers of balls> and the like.

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Fig. 310. 197. Oil-extractors. —In non-condensing engines with an exhaust-head oil descends through the drip-pipe with the condensation, and can either be caught, if valuable, or discharged to waste, if valueless. In condensing engines the lubricant used in cylinders and valve-chests will pass to the condenser and hot-well with the steam. Part of it will be caught in the surface-condenser, which it will foul and in which it will give trouble, and that which goes to the hot-well will be pumped from that well into the boiler, where again it will cause great annoyance. It does not pass out with the steam, but remains behind accumulating in quantity as the interval between cleanings of the boiler is larger. It will be seen in due course (par, 339) that its presence is a continual danger causing local or general overheating, making the plate corrode and an in-

366 MECHANICAL ENGINEERING OF POWER PLANTS.

ternal boiler-furnace to become deformed. It is in every way desirable to extract the oil from the exhaust before it enters the condensing appliances. This is done in many ways by Avhat are called oil-filters or oil separators. Their principle is to catch the oil upon the extended surface of some material through which the steam will pass but the oil will not. Hay or straw, compressed sponge, or sand in a tight

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