The function of a flash tank is to allow high-pressure condensate to flash and a reduced pressure steam. This reduced pressure steam is then used to supply heat to a “low” pressure supply main.
How does a boiler flash tank work?
A flash tank serves as a collection system for a variety of condensate drain lines. Flash tanks receive high pressure condensate which is then exposed to a low pressure steam source. When this occurs, a certain percentage of condensate will “flash” to steam at the lower pressure.
What is flash steam recovery?
A flash steam recovery system releases flash steam into a vessel, rather than to atmosphere. This means it can be reintegrated into the steam system or used to feed low-pressure applications, such as space heating.Feb 12, 2014
What does a flash vessel do?
The flash vessel is the main component in any flash recovery system.It allows flash steam from high pressure condensate to separate out and thus provide a low pressure steam supply, which has the same heat content as live steam at the same pressure.
What are flash tanks made of?
CEMLINE Flash Tanks are ASME code constructed and stamped for 150 PSI working pressure of carbon steel and have a prime painted exterior. Vessels are registered with the National Board.
What does it mean when steam flashes?
Flash steam is produced when high pressure water is reduced to low pressure in the steam trap, such that its temperature is higher than that of saturation temperature corresponding to lower pressure. ... Flashing is the name given to formation of steam from the hot-condensate when the same is released at reduced pressure.Oct 28, 2020
How do I reduce flash on steam?
To prevent the flash steam loss to the atmosphere, plants install devices such as flash steam vent condensers in the flash steam vent line. FIGURE 2. A flash steam vent condenser is incorporated in the system to recover the flash steam by using an external heat exchanger (condenser).Feb 19, 2019
What is flash steam pressure?
Flash steam is low-pressure steam created when hot water is released from a high pressure to a lower pressure within a steam system. For example, it can be released through a steam trap or from boiler blowdown.Feb 12, 2014