Home>News & Events>Boiler FAQ>To improve the thermal efficiency of gas steam boilers, it is necessary to reduce the scale on the h

To improve the thermal efficiency of gas steam boilers, it is necessary to reduce the scale on the h

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No matter how to prevent it, gas-fired steam boilers will produce more or less scale after long-term operation.

When the gas-fired steam boiler is running, a series of chemical and physical reactions will occur in the furnace. During the use process, hard and dense scale will be formed on the heating surface, which will directly reduce the heat exchange efficiency of the boiler; The effect of corrosion under the scale will lead to the reduction of heat absorption in the water-cooled fireplace chamber of the gas-fired steam boiler, thereby reducing the thermal efficiency and wasting the input cost.

There is another necessity to clean the scale, that is, to keep the boiler running stably for a long time.

The thermal conductivity of scale is only 1% of that of steel. Once the heating surface is scaled, the heat transfer effect will be hindered. In order to maintain a certain output of the boiler during use, it is necessary to increase the temperature of the fire side. In the process of increasing the outlet temperature of the furnace of the gas-fired steam boiler, the loss of the gas-fired steam boiler will increase, and the scaling in the water wall of the equipment will effectively reduce the heat transfer effect, which is very possible. It will cause the temperature of the water wall to increase and cause the water wall to burst.

Cleaning the boiler becomes even more important. During the cleaning process, an efficient, environmentally friendly and non-corrosive cleaning agent can be selected, which will expose the original metallic color of the equipment pipe and reduce the effect of scaling.

Secondly, after the gas-fired steam boiler is ignited, it is necessary to pay attention to observe the change of the flue gas temperature in the furnace and the temperature of the main steam; when the main steam pressure is in a rising state, if the boiler is ignited, the rate of increase of the flue gas temperature will be obviously slow or not. Check the oil gun for fire.

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