Water Tube Horizontal Boilers for sale

Water Tube Horizontal Boilers for sale produce steam by feeding a high pressure water into a series of tubes which are surrounded by the high temperature combustion gases. etqHorizontal boiler

water tube horizontal boiler for saleetqHorizontal boiler

Water tube horizontal boiler( DZL coal & biomass fired type)etqHorizontal boiler

This type of boiler is generally preferred in high pressure applications because the high pressure water/steam can be contained within narrow pipes which can contain the pressure with a thinner wall. The thinner wall allows better heat transfer, however can be susceptible to damage by vibration caused by flue gas flow.   etqHorizontal boiler

The main advantage of water tube boilers (over fire tube boiler or shell boilers) is that much higher pressures can be sustained, and therefore water-tube boilers are used in power station applications that require high steam output (up to 500 kg/s), high steam pressure (up to 160 bar), and/or Super-heated steam (up to 550°C). A modern ‘utility boiler’ will typically be a water tube boiler, since fire tube boilers have limited in capacity and are only feasible in smaller systems. That said, water-tube boilers are also manufactured in smaller sizes to compete with shell boilers.   etqHorizontal boiler
Small water-tube boilers may be manufactured and assembled into a single packaged unit, similar to shell boilers, however large units are occasionally manufactured in sections for assembly on site.etqHorizontal boiler

firetubeboileretqHorizontal boiler

Fire tube steam boiler( oil gas fired type)etqHorizontal boiler

Water tube horizontal boilers contain the water in horizontal straighter tubes, called risers, which extend between the water drum at the bottom, to the steam drum on the top. The tubes are situated in the flue gas channel, and are heated by the flue gases, which are led from the furnace through the flue gas passage. The horizontal tubes (risers) typically surround the firebox in layers like a dense forest. As steam bubbles form inside the risers, the bubbles rise to the steam drum, where the steam and water is separated by gravity and the steam exits the steam drum through the steam header.etqHorizontal boiler

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