Boiler Feed Water Parameters

Problems caused by impurities in the feed water are.

Boiler feed water parameters.

Only relatively wide ranges can be given as to maximum levels of alkalis salt silica. Boiler feed water is made of makeup water and return condensate. Parameters for boiler water. Make water is the original raw water derived from.

The boiler water also has frequent blowdowns in order to keep the chloride content down. Boiler water is the term used specifically to refer to water which is heated inside the actual boiler. Parameters ph th p al. Hardness chloride 7 3 7 8 2600 1580 800 780 300.

Boiler feed water is used to produce steam. Feed water boiler water characteristics as per is 10392 1982 1 feed water parameters upto 20 kg cm2 21 kg cm2 to 39 kg cm2 40 kg cm2 to 59 kg cm2 unit total hardness 10 1 0 0 5 ppm as caco 3 ph value 8 5 9 5 8 5 9 5 8 5 9 5 dissolved oxygen 0 1 0 02 0 01 as ppm silica 5 0 5 as ppm sio 2. These chemicals are mostly oxygen scavengers and phosphates. Boiler water is provided by the boiler feed water from the boiler as either heated water or steam.

Parameter control ph tds total hardnes ca. The pressure of the steam 0 5 100 bar determines the temperature and energy capacity but also the quality of the feed water. Parameters for cooling tower. Chemicals are put into boiler water through the chemical feed tank to keep the water within chemical range.

Boiler water is treated to prevent scaling corrosion foaming and priming. The water which directly enters the boiler. Feed water purity requirements therefore can vary widely.