A method and system for measuring coal consumption in a thermal power plant

Abstract

This application discloses a method and system for measuring coal consumption in a thermal power plant. The method includes: separately collecting the rising and falling state signals of the coal plow, the reversing signal of the coal discharge port of the three-way baffle, and the flow of coal on the conveyor belt. coal flow weighing signal; determine the landing time and coal unloading delay time corresponding to the target coal plow; determine the coal unloading start time t1 and coal unloading end time t2 of the target coal plow; based on t1, t2 and the target The coal flow weighing signal collected at the coal flow weighing signal collection position on the transport belt in the corresponding time period is obtained to obtain the coal unloading capacity of the target coal plow in the coal unloading time period t2-t1; the target coal plow The coal unloading amount is accumulated into the total coal unloading amount of the target coal bunker; the total coal unloading amount of the target coal bunker is accumulated into the total coal consumption of the target boiler. In the method disclosed in the embodiment of the present application, as long as the coal plow is in the coal unloading state, the amount of coal unloaded by the coal plow in the coal unloading state can be calculated without omission, thereby improving the accuracy of the measurement of the coal consumption of the boiler Spend.

Description

technical field [0001] The invention relates to the technical field of coal measurement, in particular to a method and system for measuring coal consumption in a thermal power plant. Background technique [0002] Thermal power plants need to consume a large amount of coal in the process of power generation or heating. In order to grasp the economic benefits of thermal power plants, it is necessary to monitor the energy conversion efficiency of each boiler in the thermal power plant. [0003] In order to obtain the energy conversion efficiency data of each boiler in a thermal power plant, it is necessary to measure the coal consumption of each boiler. At present, when thermal power plants measure the coal consumption of boilers, they usually use public electronic belt scales to make statistics on the total coal consumption of all boilers in thermal power plants, and then share them equally to each boiler, so as to calculate the total coal consumption of each boiler. The appr...

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Problems solved by technology

At present, when thermal power plants measure the coal consumption of boilers, they usually use public electronic belt scales to make statistics on the total coal consumption of all boilers in thermal power plants, and then share them equally to each boiler, so as to calculate the total coal consumption of each boiler. The approximate coal consumption of a boiler, it can be seen that the above method of obtaining the coal consumption of the boiler is a rough way, which leads to the inability to accurately know the energy conversion efficiency of the boiler, and it is impossible to improve the working efficiency of the boiler and reduce the operating cost provide reliable evidence

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