Boiler Feed Water Parameters

Parameters for boiler water.

Boiler feed water parameters.

The pressure of the steam 0 5 100 bar determines the temperature and energy capacity but also the quality of the feed water. These chemicals are mostly oxygen scavengers and phosphates. Boiler feed water is made of makeup water and return condensate. The boiler water also has frequent blowdowns in order to keep the chloride content down.

Only relatively wide ranges can be given as to maximum levels of alkalis salt silica. Hardness chloride 7 3 7 8 2600 1580 800 780 300. The water which directly enters the boiler. Parameters for cooling tower.

Feed water purity requirements therefore can vary widely. Boiler water is provided by the boiler feed water from the boiler as either heated water or steam. Problems caused by impurities in the feed water are. T d s amine sio2 chloride iron fe standard 9 5 10 2 nil 5 8ppm 10 15ppm 15 30ppm 5 10ppm 1 ppm 1 ppm 01ppm.

The general rule is the higher the pressure the more strict the quality of the boiler feed water. Parameter control ph tds total hardnes ca. Chemicals are put into boiler water through the chemical feed tank to keep the water within chemical range. 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.

Make water is the original raw water derived from. Boiler water is the term used specifically to refer to water which is heated inside the actual boiler. Boiler feed water is used to produce steam.