A flue gas dewhitening and water supply system and its control method
A technology of water supply system and control method, applied in separation method, chemical instrument and method, gas treatment and other directions, can solve the problems of high energy consumption of the system, lack of control strategy soda water recovery method, inability to cope with flue gas humidity, etc., to save water resources, realize the effect of recycling desalination and re-supplying water, and suppressing external air conditions
Active Publication Date: 2022-01-18
SHANDONG UNIV
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[0005] However, the inventors found that some existing flue gas dewhitening equipment still have high system energy consumption, lack of control strategies and steam recovery methods in the regeneration process, and cannot cope with changes in flue gas humidity, external air conditions, and cooling water temperature. the impact and other deficiencies
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[0035] It should be noted that unless otherwise specified, all technical and scientific terms used in the present invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
[0036] It should be noted that the terminology used in the present invention is only for describing specific embodiments, and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.
[0037] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, it only means that they are consistent with the directions of up, down, left and right in...
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The invention relates to the technical field of wet desulfurization flue gas dewhitening, in particular to a flue gas dewhitening, water supply system and a control method thereof. The system includes: a dehumidifier, a storage tank disposed at the bottom of the dehumidifier; a solution concentration monitoring device disposed at the bottom of the storage tank; a low-temperature multiple-effect distillation device that forms a circulation connection with the inlet and outlet of the storage tank, and the outlet is connected to the The connecting pipeline of the low-temperature multiple-effect distillation device is provided with a regeneration regulating valve; a condensate recovery device connected to the condensed water outlet of the low-temperature multiple-effect distillation device; A vacuum pump connected to the evaporation effect; the outlet of the storage tank, the fluid heat exchanger, and the spray device on the upper part of the dehumidifier are connected in sequence, and the fluid heat exchanger is connected to the cooling tower. The invention enables the flue gas to pass through the heat and mass transfer process with the dehumidification solution, realizes the recovery of moisture and latent heat in the flue gas, and realizes water supply at the same time of whitening.
Description
technical field [0001] The invention relates to the technical field of wet desulfurization flue gas dewhitening, in particular to a system and control method for high temperature and high humidity flue gas dewhitening and water supply after wet desulfurization. Background technique [0002] The information disclosed in the Background of the Invention is only intended to increase the understanding of the general background of the invention, and is not necessarily to be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. [0003] At present, most of the desulfurization systems used in my country's thermal power plants, coking plants, coal-fired boiler equipment, non-ferrous metal smelting, and steel industries use wet desulfurization processes. The flue gas after desulfurization contains a large amount of water vapor. Basically in a saturated state at high temperature. If the flu...
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IPC IPC(8): B01D53/26B01D53/18B01D53/14F23J15/06
CPCB01D53/263B01D53/18B01D53/1425F23J15/06B01D2258/0283B01D2258/025B01D2258/02Y02E20/30
Inventor 王新立马驭董勇王雷贾磊尹晓红
Owner SHANDONG UNIV