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A steam boiler evaporates liquid water to form steam, or gaseous water, and requires frequent replenishment of boiler feedwater for the continuous production of steam required by most boiler applications. Water is a capable solvent, and will dissolve small amounts of solids from piping and containers including the boiler.
A steam generator is a form of low water-content boiler, similar to a flash steam boiler. The usual construction is as a spiral coil of water-tube , arranged as a single, or monotube , coil. Circulation is once-through and pumped under pressure, as a forced-circulation boiler . [ 1 ]
Combi steamers require a water connection or a separate drinking water tank, as well as a water drain. On most manufacturers' models, the extremely high-output steam generators are at risk of experiencing rapid calcification, so the water connected must not have hardness levels over 6 °dH (107.1 ppm).
A boiler or steam generator is a device used to create steam by applying heat energy to water. Although the definitions are somewhat flexible, it can be said that older steam generators were commonly termed boilers and worked at low to medium pressure (7–2,000 kPa or 1–290 psi ) but, at pressures above this, it is more usual to speak of a ...
Boiler feedwater is the water which is supplied to a boiler. The feed water is put into the steam drum from a feed pump. In the steam drum the feed water is then turned into steam from the heat. After the steam is used, it is then dumped to the main condenser. From the condenser, it is then pumped to the deaerated feed tank.
Monotube steam generators may either boil gradually along their length, usually pumped circulation systems, [2] but where this boiling does not disrupt the circulation. Otherwise they can use the Benson supercritical system , where the pressure is sufficient to prevent boiling (within the heated volume) altogether.
Steam generator (auxiliary boiler), a steam-powered boiler used on ships to produce a low-pressure steam, heated by a high-pressure steam supply rather than a flame. Steam generator (boiler), an oil- or gas-fired boiler, based on a low-water content monotube coil. Steam generator (nuclear power), a heat exchanger in a pressurized water nuclear ...
Unlike the superheater, the steam drier does not attempt to raise the temperature of the steam significantly beyond the boiling point. Steam generator Steam separator Suction valve an automatic non-return valve, which opens when the boiler is at less than atmospheric pressure. This avoids any risk of vacuum collapse, when a hot boiler is ...