What is used instead of a blowdown tank in some plants?

In some plants, a blowdown separator is used instead of a blowdown tank to handle the discharge of boiler water. The blowdown separator efficiently separates steam from the blowdown water, allowing for the recovery and reuse of steam while effectively managing the discharge. This option serves to minimize water loss and enhance efficiency by redirecting steam into the system, reducing waste.

The blowdown separator operates by allowing the hot blowdown water to cool and separate within the unit, promoting safety and compliance with environmental regulations, as it can lead to a more controlled discharge process. This separation process is crucial for protecting downstream equipment from potential damage due to the high temperatures and pressures of direct blowdown.

Other options, while they serve important functions in a steam system, do not provide the same level of efficiency or purpose as a blowdown separator in this context.