2020/8/26 · 14. The steam drum air vent is normally opened when cooling down a boiler to. A. Relieve any residual air pressure in the drum. B. Prevent a vacuum from forming in the steam drum. C. Reduce the pressure in the steam drum more rapidly.
GET A QUOTEWhen steam demand from the plant is low, and the boiler is capable of generating more steam than is required, the surplus steam is injected into a mass of water stored under pressure. Over a period of time the stored water content will increase in temperature and pressure until it finally achieves the saturation temperature for the pressure at which the boiler is operating.
GET A QUOTEWhen steam demand from the plant is low, and the boiler is capable of generating more steam than is required, the surplus steam is injected into a mass of water stored under pressure. Over a period of time the stored water content will increase in temperature and pressure until it finally achieves the saturation temperature for the pressure at which the boiler is operating.
GET A QUOTESteam produced in any shell-type boiler, where the heat is supplied only to the water and where the steam remains in contact with the water surface, may typically contain around 5% water by mass. If the water content of the steam is 5‰ by mass, then the steam is said to be 95% dry and has a …
GET A QUOTEIn practice, because of turbulence and splashing, as bubbles of steam break through the water surface, the steam space contains a mixture of water droplets and steam. Steam produced in any shell-type boiler (see Block 3), where the heat is supplied only to the water and where the steam remains in contact with the water surface, may typically contain around 5% water by mass.
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