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Comprehesive Boiler Manual Jan 2019

A Preview of B&CT Training LLC - Boiler Systems I & II Comprehensive Training Manual. We can customize training manuals to include your specific equipment. The outline is specifically designed to assist with compliance to V.A. Handbook 1810 requirements. For more information please call 405-401-0156 or see www.b-ct.net

A Preview of B&CT Training LLC - Boiler Systems I & II Comprehensive Training Manual. We can customize training manuals to include your specific equipment. The outline is specifically designed to assist with compliance to V.A. Handbook 1810 requirements. For more information please call 405-401-0156 or see www.b-ct.net

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Desuperheater<br />

2) Keeping steam temperature constant and below 1000°F is important for minimizing thermal stresses on the superheater tubes and turbine.<br />

Pretreated and<br />

preheated boiler<br />

feed water is<br />

generally used as<br />

desuperheater feed<br />

water<br />

Technically, a Desuperheater and Attemperator<br />

are one in the same, that is, a unit that reduces the<br />

temperature of super-heated steam. However, in<br />

the power plant arena, attemperators generally<br />

refer to the unit between stages in a superheater.<br />

Venturi<br />

Desuperheater<br />

Variable Orifice Desuperheater<br />

Atomizing Desuperheater<br />

(steam and water sprayer)<br />

Spring loaded<br />

plunger (plug)<br />

Steam<br />

Flow<br />

Spring loaded plunger<br />

lifts up when high<br />

pressure steam is<br />

present, opening up the<br />

cooling water inlet.<br />

P a g e 109

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