Water-Tube Boiler

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water-tube boiler

[′wȯd·ər ¦tüb ‚bȯi·lər]
(mechanical engineering)
A steam boiler in which water circulates within tubes and heat is applied from outside the tubes to generate steam.

Water-Tube Boiler


a steam boiler with a heating sur-face of steel tubes whose exterior surfaces are exposed to the gaseous end products of fuel combustion (flue gases). Water and a steam-and-water mixture circulate within the tubes, which are connected by drums and headers to form a single system. Vertical water-tube boilers with a steam-generating capacity of 2.5 to 640 tons an hour and single-pass boilers with a steam-generating capacity of 250 to 2,500 tons an hour are manufactured in the USSR for use in various types of boiler plants. The production of horizontal water-tube boilers has been discontinued.


References in periodicals archive ?
Historic steam passenger boats and tugs or small cargo vessels are generally fitted with shell-type boilers but some have water-tube boilers.
27) By comparison, today's water-tube boilers safely operate at 5,000 psi and can deliver superheated steam at over 500 degrees Centigrade.
63) The water-tube boiler, invented by the Americans George Babcock and Stephen Wilcox in 1867, was itself not technologically feasible until the advent of twentieth-century metallurgy and electric welding techniques.
Newer ships had Yarrows water-tube boilers that were much more efficient and somewhat cleaner, but a beast to work in.
Production of personal computers, boiler components and water-tube boilers was sluggish.
The 50th Street plant was equipped with 14,600-hp, coal-fired, water-tube boilers, which produced steam to drive turbines that generated dc power.
The major product types for US and Canada analyzed are Electric Boilers, Fire-Tube Boilers, and Water-Tube Boilers.
Study Reliability and Reporting Limitations I-1 Disclaimers I-2 Data Interpretation & Reporting Level I-2 Quantitative Techniques & Analytics I-3 Product Definitions and Scope of Study I-3 Classification Based on End-Use and Capacity I-4 Utility Boilers I-4 Industrial Boilers I-4 Classification Based on Movement of Water and Combustion Gas I-4 Firetube Boiler I-4 Water-Tube Boilers I-5 Commercial Water-tube Boilers I-5 Industrial Water-tube Boilers I-5 Electric Boilers I-5
Product Overview II-3 Boiler Technology - A Historical Perspective II-3 Constituents of a Boiler System II-3 Types of Boiler Systems II-4 Classification Based on Movement of Water and Combustion Gas II-4 Firetube Boiler II-4 Water-Tube Boilers II-4 Electric Boilers II-5 Classification Based on End-Use and Capacity II-5 Utility Boilers II-5 Industrial Boilers II-5 Commercial Boilers II-5 Classification Based on Heat Source II-5 Coal-Fired Systems II-6 Fluidized-Bed Combustion Boilers II-6 Bubbling Fluidized Bed Boilers II-6 Circulating Fluidized Bed Boilers II-6 Pulverized-Coal (PC) Boiler Systems II-7 End-Use Industries II-7 Electric Power Generation II-7 Pulp & Paper II-7
Table 26: US Exports of Water-tube Boilers (More Than 45 TSPH) (2007): Percentage Breakdown of Value Exports by Country - Canada, Mexico, Venezuela, Singapore, Russia, China, and Others (includes corresponding Graph/Chart) III-4
Table 27: US Imports of Water-tube Boilers (More Than 45 TSPH) (2007): Percentage Breakdown of Value Imports by Country - France, Spain, Turkey, Canada, and Germany (includes corresponding Graph/Chart) III-5
The Power Plant's water-tube boilers were coal fired, and the transit company soon found it was cheaper to buy hydroelectric power generated elsewhere.