A calculation method of desulfurization efficiency combined with udf new thermal power plant desulfurization tower and its auxiliary load adjustment method
A technology of desulfurization efficiency and desulfurization tower, which can be used in computing, electrical digital data processing, instruments, etc., and can solve the problems of equipment prototype experimental research difficulty and high cost
Active Publication Date: 2018-09-28
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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However, the transformation of low-temperature waste heat utilization is a huge systematic project, and the prototype experiment research on various equipment is difficult and costly
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[0115] The present invention is a method for estimating desulfurization efficiency of desulfurization towers in combination with UDF new-type thermal power plants, including the steps of establishing a turbulence model, establishing a liquid droplet motion model, establishing a sulfur dioxide absorption model, and using FLUENT numerical calculation software to solve the desulfurization efficiency of a desulfurization tower. The distribution of sulfur dioxide concentration field in the desulfurization tower is obtained, and the flow chart is as follows figure 1 As shown, on this basis, it is also possible to adjust the load of the auxiliary machine, and add a step to solve the load required by the oxidation fan and the circulating slurry pump. After obtaining the sulfur dioxide desulfurization efficiency, the required limestone slurry amount and the required oxidation can be calculated accordingly. The air volume is used as a reference for adjusting the operating load of the aux...
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The invention discloses a novel calculation method for desulphurization efficiency of a desulphurization tower in a thermal power plant in combination with UDF and an auxiliary machine load adjustment method adopting the calculation method. The calculation method comprises a step of establishing a turbulence model, a step of establishing a liquid droplet motion model, a step of establishing a SO2 absorption model and a step of calculating the desulphurization efficiency of the desulphurization tower by utilizing FLUENT numerical calculation software, thereby obtaining SO2 concentration field distribution in the desulphurization tower. The method is capable of accurately obtaining the desulphurization efficiency of the desulphurization tower. At the same time, the invention discloses the auxiliary machine load adjustment method adopting the calculation method. The adjustment method further comprises a step of calculating loads required for an oxidation fan and a circulating slurry pump. After the desulphurization efficiency of SO2 is obtained, the required limestone slurry quantity and the required oxidization air quantity can be calculated to serve as references for adjusting operational loads and capacity transformation of the circulating slurry pump and the oxidation fan which serve as auxiliary machines, and the operational loads of the circulating slurry pump and the oxidation fan are adjusted.
Description
technical field [0001] The invention relates to a method for estimating desulfurization efficiency of a desulfurization tower in a thermal power plant and a method for adjusting the load of an auxiliary machine, in particular to a method for estimating the desulfurization efficiency of a desulfurization tower in a thermal power plant combined with UDF and a method for adjusting the load of an auxiliary machine. Background technique [0002] With the increasing requirements for environmental protection and energy saving, more and more thermal power plants have carried out energy-saving transformation, especially the utilization of low-temperature waste heat. Utilization of low-temperature waste heat will change the parameters of boiler tail gas, such as temperature, flow, etc., which will change the operating conditions of the original boiler tail gas treatment equipment, especially the flue gas desulfurization system, that is, the desulfurization efficiency will change. When...
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IPC IPC(8): G06F17/50
CPCY02T90/00
Inventor 宋景慧廖艳芬李方勇李德波林延吴淑梅胡志锋刘桂才
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID