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Fourth, the heat loss

Boiler operation, the temperature of the furnace wall and the outer wall of the boiler body is always higher than the temperature of the surrounding air, because this part of the difference in temperature will cause heat loss and radiation loss is formed. The outer area of ​​the boiler and heat loss, the degree of thermal insulation, the outside air temperature and air flow rate of about size. General requirements of the wall surface of the furnace temperature should not exceed 50 degrees.

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(4)load turndown ratio; run the operating flexibility; circulating fluidized bed boiler combustion of the fuel in the absence of minimum load of up to 25% of rated load, load change rate of up to 5% of the load per minute;

Matters needing attention in Application of Gas-fired Steam Boiler

The higher the pressure of the steam boiler, the higher the energy consumption, and the corresponding pressure on the steam equipment and the piping and valves will increase, which will make the maintenance and maintenance of the steam boiler relatively advanced. The share of steam that occurs during and during the process of heat transfer and lost will also increase. The salt contained in the high-pressure steam will increase with the increase of the air pressure. These salts will cause the structural appearance of the heated area such as the water wall tube, the smoke pipe and the drum, causing overheating, foaming, blockage, etc., and causing the pipe to blast when severe. Risky incidents.

1. Pay attention to the amount of fuel. Avoid more fuel in the boiler. If there is too much fuel in the furnace, the fuel will not be fully incinerated, and some incinerations that have not been completely incinerated will occur. If the furnace is found to be dark, the fire is small, and the chimney is emerging. Conditions such as black smoke are usually caused by carbon monoxide in the furnace.

2. The size of the incineration material used. From the point of view of incineration, the smaller the volume of fuel, the simpler it is to mix with air and simply incinerate. However, if the volume is too small, the energy consumption will increase greatly with respect to the gas-fired steam boiler, and the exhaust gas will increase, which will also cause the loss of fuel to a certain extent.