An energy-saving wet flue gas, sulfur and dust integrated ultra-low emission process

A flue gas sulfur and energy-saving technology, which is applied in the field of energy-saving wet flue gas, sulfur and dust integrated ultra-low emission process, can solve the problems of inability to accurately match coal-fired generating units, energy waste, etc., so as to avoid waste of power consumption during operation. , the effect of saving power consumption and equipment cost

Active Publication Date: 2022-02-01
FUJIAN LONGKING
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  • Claims
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AI Technical Summary

Problems solved by technology

Usually in the wet flue gas desulfurization system, the slurry circulation pump is set with the same specifications, which cannot accurately match the flue gas volume treatment requirements of the coal-fired generating set at low load. Economical operation, resulting in waste of energy

Method used

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  • An energy-saving wet flue gas, sulfur and dust integrated ultra-low emission process
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  • An energy-saving wet flue gas, sulfur and dust integrated ultra-low emission process

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Embodiment 1

[0027] This embodiment is an energy-saving wet flue gas, sulfur and dust integrated ultra-low emission process, such as figure 1 As shown, it includes a desulfurization tower 1, and the desulfurization tower is provided with a high-efficiency demister 3, a multi-stage spray layer 4, and a slurry pool 7 sequentially from top to bottom; the spray layer 4 is provided with a nozzle 5 with the opening facing downward; The slurry pool 7 is connected to the spray layer 4 through a circulating spray pipeline with a slurry circulating pump 2; it is characterized in that the multi-stage spray layer 4 is arranged in one-to-one correspondence with the slurry circulating pump 2 outside the desulfurization tower; including Follow the steps below:

[0028] S1. According to the maximum amount of flue gas to be treated by desulfurization tower 1, that is, under 100% flue gas load, after calculating the total value of the slurry circulation flow required by desulfurization tower 1, the total va...

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Abstract

The invention discloses an energy-saving wet flue gas, sulfur and dust integrated ultra-low emission process, which includes a desulfurization tower. The desulfurization tower is sequentially equipped with a high-efficiency demister, a multi-stage spray layer, and a porous distribution layer. The spray layer is provided with nozzles facing downwards; the slurry pool is connected to the spray layer through a circulating spray pipeline with a slurry circulation pump; the multi-stage spray layer is circulated with the slurry outside the desulfurization tower One-to-one corresponding setting of the pumps; including the following steps: S1. According to the maximum amount of flue gas to be treated by the desulfurization tower, after calculating the total value of the slurry circulation flow required by the desulfurization tower, the total value of the slurry circulation flow is proportionally different Sequential distribution to each spray layer; S2. Selectively configure each slurry circulating pump according to the actual amount of treated flue gas during the peak shaving period. The invention can save the operating power consumption of the system and save the cost at the same time when the coal-fired power plant operates at medium and low load through the differential design of the flow of the spray layer and the slurry circulating pump.

Description

technical field [0001] The invention belongs to the technical field of flue gas treatment, and relates to an energy-saving wet flue gas sulfur dust integrated ultra-low emission process. Background technique [0002] With the improvement of science and technology level and the adjustment of national energy policy, solar power generation, hydropower generation, wind power generation and other new green energy technologies have been greatly developed. In the past few decades, the power supply situation dominated by coal-fired power generation has undergone fundamental changes. Many coal-fired generators have been formed into peak-shaving units, that is, only when the power generated by all new green energy technology power generation equipment cannot meet peak hours. In the case of demand on the power consumption side, the coal-fired generator sets increase from low load (small power generation) to higher load to make up for the shortfall in power demand. The reason why this ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/80B01D53/96B01D53/48B01D50/40B01D47/06
CPCB01D53/80B01D53/96B01D47/06B01D53/48B01D2258/0283B01D50/40
Inventor 罗跃彬温卿云陈天光李俊顾琦
Owner FUJIAN LONGKING
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