. American stationary engineering; a practical work which begins at the boiler room and takes in the whole power plant. drip is connected to a trap, or, ifRg, 141. the condensed water is returned to the boiler, the drip is arranged accordingly. But it is the best practice to lay the main pipe with the lowest part at the boiler, so that the drip will take care of itself,and not require an extra trap, nor interfere with the returncirculation. When steam is tamed into cold pipes the water ol condensa-tion gets cold after running a short distance, and if it has to gothrough a small drip pipe full
. American stationary engineering; a practical work which begins at the boiler room and takes in the whole power plant. drip is connected to a trap, or, ifRg, 141. the condensed water is returned to the boiler, the drip is arranged accordingly. But it is the best practice to lay the main pipe with the lowest part at the boiler, so that the drip will take care of itself,and not require an extra trap, nor interfere with the returncirculation. When steam is tamed into cold pipes the water ol condensa-tion gets cold after running a short distance, and if it has to gothrough a small drip pipe full of frost it will probably be , unless it is followed up with a pail of hot water, thewhole arrangement will be frozen and a great many burstedpipes will result. Whenever turning steam on in a system ofvery cold pipes, only one room should be taken at a time, anda pail of hot water should be handy so that if the pipe becomesobstructed it can be thawed immediately without damage, When pipes become extensively frozen there is nothing to dobut take them out and put in new ones. 262 Maxims and Fig. 142. Fig. 143. POINTS RELATING TO STEAM HEATINGThe manner in which atemperature too low to startrapid combustion in wood insteam pipes, operates inoriginating a fire is by firstreducing the oxide of iron(rust) to a metallic condi-tion. This is possible onlyunder certain external con-ditions, among them a dryatmosphere. Ju&t as soonas the air is recharged withmoisture, the reduced iron isliable to regain, at a hound,its lost oxygen, and in doing so become red hot. This is theheat that sets the already tindered wood or paper ablaze. Where there is no rust there is no danger from fire with aless than .scorching temperature in the pipe or flue. Hencethe necessity of keeping steam or hot water fittings in goodorder. The indirect system of heating is the most expensive to putin ; as to the cost of providing nearly double the heating surfacein the coils must be added th
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsteamen, bookyear1917
