Water-tube Boilers: Based on a Short Course of Lectures Delivered at University College, LondonJ. Murray, 1901 - 213 páginas |
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Water-tube Boilers: Based on a Short Course of Lectures Delivered at ... Leslie Stephen Robertson Visualização completa - 1901 |
Water-tube Boilers: Based on a Short Course of Lectures Delivered at ... Leslie Stephen Robertson Visualização completa - 1901 |
Water-tube Boilers: Based on a Short Course of Lectures Delivered at ... Leslie Stephen Robertson Visualização completa - 1901 |
Termos e frases comuns
Admiralty BABCOCK & WILCOX Babcock and Wilcox baffle Belleville boiler Blechynden boats boiler Fig boiler see Fig Boiler.-The boilers for naval central drum Coal per sq Coil Boiler collector combustion chamber Committee connected consists cruisers cylindrical boilers D'Allest diameter drum connected Dürr engines Fahr feed feed-pumps feed-water FEED-WATER REGULATOR filtering fitted float foot of grate forced draught French Navy front funnel H.S. Ratio G.S. hand-holes headers Heating Surface horizontal hot gases inclined joints junction boxes lantern large-tube lower marine type Messrs NICLAUSSE BOILER Normand boilers Normand-Sigaudy Number of boilers passes patented pipes placed plate Propontis reservoir rows of tubes screwed ships small-tube space square foot steam and water steam drum temperature Temple boiler Thornycroft top drum torpedo-boat trial tubulous boilers type of boiler type of water-tube upper steam valve vertical tubes water drum water-level water-space water-tube boiler Weight of boiler Wilcox Boiler Yarrow boiler
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Página 199 - ... of the resistance offered by the great length of tube between the feed and steam collectors, the friction of the junction boxes, and the small holes in the nipples between the feed collector and the generator tubes, which also are liable to be obstructed, and may thus become a source of danger.
Página 191 - Committee are of opinion that the advantages of water-tube boilers for naval purposes are so great, chiefly from the military point of view, that, provided a satisfactory type of water-tube boiler be adopted, it would be more suitable for use in His Majesty's Navy than the cylindrical type of boiler.
Página 197 - The Committee recommend : — (a.) As regards ships which are to be ordered in the future : — That Belleville boilers be not fitted in any case. (b.) As regards ships recently ordered, for which the work done on the boilers is not too far advanced : — That Belleville boilers be not fitted. (c.) As regards ships under construction, for which the work is so far advanced that any alteration of type of boiler would delay the completion of the ships : — That Belleville boilers be retained. (d.)...
Página 198 - Reduction to a minimum of danger to the ship from damage to boilers from shot or shell. (c.) Possibility of removing damaged boilers and replacing them by new boilers in a very short time and without opening up the decks or removing fixtures of the hull. These requirements are met by the water-tube boiler in a greater degree than by the cylindrical boiler, and are considered by the Committee of such importance as to outweigh the advantages of the latter type in economy of fuel and cost of up-keep....
Página 197 - February, 1901, had confirmed them in the opinion that "the advantages of water-tube boilers for naval purposes are so great, chiefly from a military point of view, that, provided a satisfactory type of water-tube boiler be adopted, it would be more suitable for use in His Majesty's navy than the cylindrical type of boiler.
Página 200 - ... type of water-tube boiler which had been tried at sea on a considerable scale, under ordinary working conditions. The Committee therefore consider that there was justification for then regarding it as the most suitable type of water-tube boiler for the Navy. (11.) To obtain satisfactory results in the working of the Belleville boiler, in face of the defects named in paragraph 9, more than ordinary experience and skill are required on the part of the engineroom staff. It appears, however, from...
Página 194 - To investigate the causes of the defects which have occurred in these boilers and in the machinery of ships fitted with them, and to report how far they are preventable either by modifications of details or by difference of treatment, and how far they are inherent in the system. The Committee should also report generally on the suitability of the propelling and auxiliary machinery fitted in recent war vessels and offer any suggestions for improvement, the effect as regards weight and space of any...
Página 200 - It is at the same timo less complex, and free from the special risks of tube deterioration which have proved so serious in many cases, notably in the Europa. They therefore recommend, for ships under construction, that the non-economiser type should be reverted to where practicable, with the tubes raised higher above the firebars, to increase the combustion space, and that where possible the steam collectors should be made larger and more accessible internally.
Página 195 - SIR, — I am commanded by my Lords Commissioners of the Admiralty to inform you that the several matters which passed between their Lordships and yourself, with relation to two pamphlets lately published, entitled, ' A Specimen of Naked Truth from a British Sailor...