Adjustment method and device for power plant pulverizing system based on moisture content of incoming coal
A pulverizing system and adjustment method technology, applied in the direction of combustion method, block/powder fuel preparation, combustion equipment, etc., can solve the problems of high risk, high cost of hardware equipment, increased difficulty of adjustment, etc., and achieve easy promotion, Low cost, good adjustment effect
Active Publication Date: 2017-03-01
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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Problems solved by technology
At present, the detection of coal moisture into the furnace is mainly through equipment containing radioactive elements. This equipment detection method has obvious shortcomings, such as the inability to achieve online and real-time detection, and the risk is relatively high
In addition, hardware equipment has a higher cost
This not only affects the adjustment effect of the pulverizing system of the power plant, but also increases the difficulty of adjustment, which is not conducive to the stable operation of the power plant boiler
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[0018] In order to further illustrate the technical means adopted by the present invention and the achieved effects, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and preferred embodiments.
[0019] see figure 1 , is a schematic flow chart of the method for adjusting the pulverizing system of a power station based on the moisture content of incoming coal according to the present invention.
[0020] The present invention is based on the adjustment method of the power station pulverizing system of coal moisture into the furnace, comprising the following steps:
[0021] S101 According to the heat balance formula in the pulverizing system of the power station, establish a set of equations for calculating the moisture content of the incoming coal; wherein, the heat balance formula refers to the total heat input from the initial section of the pulverizing system of the power station and t...
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The invention discloses an electric station powder preparing system regulating method based on furnace entering coal moisture. The method comprises the following steps that an equation set used for calculating the furnace entering coal moisture is built according to a thermal balance formula in an electric station powder preparing system; the furnace entering coal moisture in the electric station powder preparing system is calculated according to the built equation set; and the outlet air powder mixing temperature of the electric station powder preparing system is regulated according to the calculated furnace entering coal moisture. In addition, the invention also discloses an electric station powder preparing system regulating device based on furnace entering coal moisture. The method and the device provided by the invention can be adopted for realizing the real-time on-line calculation on the furnace entering coal moisture, the outlet air powder mixing temperature of the electric station powder preparing system is regulated in real time, a good regulating effect is realized, in addition, sufficient safety is realized, the cost is lower, and the popularization is easy.
Description
technical field [0001] The invention relates to the technical field of power plant pulverizing systems, in particular to a power plant pulverizing system adjustment method based on the moisture content of incoming coal and a power plant pulverizing system adjustment device based on the incoming coal moisture content. Background technique [0002] For electric boilers, the moisture content of incoming coal is an important monitoring component of raw coal. The fluctuation of coal moisture in the furnace will lead to a problem in the stability of the air-powder mixing temperature at the outlet of the direct blowing pulverizing system. Therefore, real-time detection of coal moisture in the furnace is of great significance, which directly affects the adjustment accuracy and adjustment effect of the pulverizing system of the power station. At present, the detection of coal moisture into the furnace is mainly through equipment containing radioactive elements. This equipment detect...
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IPC IPC(8): F23K1/00
Inventor 朱亚清李锋曾德良罗嘉赵征
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID