How to Exam the Heating Efficiency If Chain Grate Boiler

How to calculate the heating efficiency of chain grate hot water boiler

In order to improve the heating efficiency of the coal fired boiler, the chain grate layer combustion technology has been adopted in the boiler industry. That is chain grate hot water boiler. With double or single layer structure, this boiler can better meet the customer’s practical needs and improve the heating efficiency. The heating efficiency of the chain grate boiler is an economic indicator of the heat utilization. So it is necessary to master its valuating method.

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Chain grate boiler, traveling grate boiler

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Counter-balancing method means scaling various heat loss of the boiler to calculate the boiler’s heat efficiency. This method is widely used in large-volume industrial boiler because through it the boiler can be deeply analyzed and can also help find the factors effecting the boiler’s heating efficiency.

Direct balancing method is also called direct measurement which directly scale the input heat and output heat of the boiler’s efficiency. This method is easy to operate but it can not find out the effecting factor of the heating efficiency.

The structure of the arches adopts the newest research product,the second prize of advance awarded by xi’an jiaotong university downside “a” structure. Th front arch is high and short while the back arch is low and long and the part near the exit is inverse inclined type, while the front arch is 45℃ inclined type,they together form a downside “a”flame structure, which is make the lean coal combustion easier and it can adjusted it self to a wide range of the coal types. In this way, the flue gas is kept within the furnace within a longer time, and the combustion efficiency is higher. The streamline shaped back arch can throw the unburned carbon grains in the middle and back part of furnace to the front, so that the coal can...