How to judge the thermal efficiency of coal fired boiler

2014-05-14

In the actual operation of coal fired boiler, the thermal efficiency relates directly to the energy conservation,some simple methods can be used to distinguish the thermal efficiency of coal-fired boiler,they will be introduced form the following aspects.

The slag of coal fired boiler

First of all,the thermal efficiency and fuel are closely related,the massive and block coal slag means the incomplete combustion,the calorific value of coal is not fully utilized,therefore, the thermal efficiency of coal fired boiler will not be high.It not noy causes the waste of fuel,but also brings the serious environmental pollution.

The temperature near the coal feeding mouth

Perceive the temperature near the coal feeding mouth with your hand,if you feel hot,it means that more calories are dissipated form the coal feeding mouth,the calories are from the burning of coal,therefor,the thermal efficiency is not high.

The exhaust gas temperature of coal fired boiler

Touch the outer wall of chimney with your hand,if the wall is so hot that your hand can not bear,it means that the exhaust gas temperature should be more than 200 degrees,the thermal efficiency of coal fired boiler is not high.

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coal fired boiler

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