Boiler scale formation

Boiler fouling is the main reason of the water is too hard, use for a long time makes a lot of calcium, sodium, magnesium, plasma formation deposition, the surface of the metal in boiler. Dispelling method must first from the water treatment, and the washing of furnace. Best professional personnel for the concrete work.

boiler scale is mainly due to the water quality, water belongs to hard water, hard water is contained more soluble calcium, magnesium material water, heat, after these soluble calcium magnesium material into insoluble substance, more precipitation impurities is hard water, impurities, the more the greater the water hardness, hardness is higher, the easier it is to form a scale. Scale accumulate too much will affect the thermal efficiency, heat loss, energy consumption increase.

1 boiler scale prevention method, if it is for the steam boiler, after water quality analysis, can on a sufficiently large amount of automatic softening water equipment, like America's rich lake, artoo fathers are good brand;

2, if supply domestic hot water boiler, and divided into two kinds, one kind is used for bathing or living hot water boiler, the boiler if used directly to heat water, can use electronic water treatment device, but does little; Another is by exchange place out of hot water, heat exchanger on the inner loop of the boiler can a smaller than on automatic softened water equipment;

3, if it is a hot water boiler heating, can choose automatic softening water equipment, water treatment instrument or electronic ( Life is not too long, generally two years or so) Second, in order to solve the problem of scale formation, can in the boiler water scale inhibitor, can be bought on the market.

the boiler scale removal method of scale removal methods mainly dosing detergent, per ton water dosing sodium hydroxide and trisodium phosphate 2 each. 5 kg boiling furnace. Of course according to the heat gauge position resin demineralized water and steam gauge requirements best and scale of demineralized water cost is much higher than the cost of energy consumption, the use of the boiler after adding a set of demineralized water, is now a dosing to scale.

1。 Thermal decomposition and temporary hardness of water into the boiler, in the process of heating, some calcium and magnesium salts thermal decomposition, from water soluble substance into poorly soluble in water, attached to the boiler on the metal surface fitting scale.

2。 Some salt over its solubility due to the pan of water evaporation and concentration, salt dissolved in water content increasing, when some salts reach supersaturation, salt precipitate solid phase on the surface of the evaporation, and scaling.

3。 The solubility decreased with the increase of water temperature, water some salt pan solubility decreased, such as CaS04 and CaSi03 salts.

4。 Interactions, the central plains water solubility of the larger salts and other salts, alkali reaction pot water, the compounds to generate insoluble in water, and scaling.

5。 Water slag transformation, when excessive slag pot in the inland waters, and sticky, such as Mg ( 哦) 2 and Mg3 ( P04) 2, if the sewage is not timely, easily by the sludge into scale.

6。 Scale removal: 1. Artificial descaling 2. Mechanical descaling. 3. Chemical cleaning