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Comprehensive smoke treatment device and method

A comprehensive treatment and flue gas technology, applied in the direction of combustion method, combustion product treatment, reduction of greenhouse gases, etc., can solve the problems of single realization, achieve the effect of improving thermal efficiency, efficient utilization, and improving safety and reliability

Inactive Publication Date: 2017-06-06
浙江巨化热电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, conventional power plant flue gas comprehensive treatment technical transformation projects often aim to achieve one of the goals alone, but cannot achieve the comprehensive functions of water collection + dust removal + waste heat recovery + elimination of "white smoke" at the same time

Method used

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  • Comprehensive smoke treatment device and method
  • Comprehensive smoke treatment device and method

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Experimental program
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Effect test

Embodiment 1

[0031] A flue gas comprehensive treatment device, including a boiler 1 connected in sequence, a tail flue 2, a dry dust collector 3, two induced draft fans 4 connected in parallel, a waste heat recovery heat exchanger 5 (shell-and-tube structure), and a desulfurization absorption tower 6. Outlet flue of desulfurization tower 7, phase change coagulation dust collector 8 (shell-and-tube structure), phase-change coalescence dust collector outlet flue 9, intermediate heat medium flue gas heat exchanger 10 (shell-and-tube structure) and chimney 11 , the phase change coagulation dust collector 8 includes a group of U-shaped tube bundle heat exchange tubes 16 (the heat exchange tube material is polytetrafluoroethylene, The center distance of the tube bundle is 30 mm), the tube plate 17 and the water collection device 18, the heat exchange tube 16 is arranged on the tube plate 17, the heat exchange tube 16 is provided with the desalted water inlet 12 of the phase change device and the...

Embodiment 2

[0037] A flue gas comprehensive treatment device, including a boiler 1 connected in sequence, a tail flue 2, a dry dust collector 3, two induced draft fans 4 connected in parallel, a waste heat recovery heat exchanger 5 (shell-and-tube structure), and a desulfurization absorption tower 6. Outlet flue of desulfurization tower 7, phase change coagulation dust collector 8 (shell-and-tube structure), phase-change coalescence dust collector outlet flue 9, intermediate heat medium flue gas heat exchanger 10 (shell-and-tube structure) and chimney 11 , the phase change coagulation dust collector 8 includes two sets of U-shaped tube bundle heat exchange tubes 16 (the heat exchange tube material is polytetrafluoroethylene, Tube bundle center distance is 28mm), tube sheet 17 and water collection device 18, two sets of U-shaped tube bundle heat exchange tubes 16 are all arranged on the tube sheet 17, and the heat exchange tubes 16 are provided with phase change device desalted water inlet...

Embodiment 3

[0043] A flue gas comprehensive treatment device, including a boiler 1 connected in sequence, a tail flue 2, a dry dust collector 3, two induced draft fans 4 connected in parallel, a waste heat recovery heat exchanger 5 (shell-and-tube structure), and a desulfurization absorption tower 6. Outlet flue of desulfurization tower 7, phase change coagulation dust collector 8 (shell-and-tube structure), phase-change coalescence dust collector outlet flue 9, intermediate heat medium flue gas heat exchanger 10 (shell-and-tube structure) and chimney 11 , the phase change coagulation dust collector 8 includes three sets of U-shaped tube bundle heat exchange tubes 16 (the heat exchange tube material is polytetrafluoroethylene, Tube bundle center distance is 24mm), tube sheet 17 and water collection device 18, three sets of U-shaped tube bundle heat exchange tubes 16 are all arranged on the tube sheet 17, and the heat exchange tubes 16 are provided with phase change device desalted water i...

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Abstract

The invention discloses a comprehensive smoke treatment device. The comprehensive smoke treatment device comprises a boiler, a tail flue, a dry dust collector, an induced draft fan, a waste heat recycling heat exchanger, a desulfurizing absorption tower, a desulfurizing tower outlet flue, a phase change cohesion dust remover, a phase change cohesion dust remover outlet flue, an intermediate heat medium smoke heat exchanger and a chimney, all of which are sequentially connected. The phase change cohesion dust remover comprises a heat exchange pipe, a pipe plate and a water collecting device. The heat exchange pipe is arranged on the pipe plate. The heat exchange pipe is further provided with a phase change device demineralized water inlet and a phase change device demineralized water outlet. The phase change device demineralized water outlet is connected with a waste heat recycling heat exchanger demineralized water inlet. A waste heat recycling heat exchanger demineralized water outlet is connected with an intermediate heat medium smoke heat exchanger demineralized water inlet. The water collecting device is connected with the desulfurizing absorption tower through a water pipe. The invention further discloses a method using the device for smoke treatment. The comprehensive smoke treatment device and method have the beneficial effects that the structure is simple, energy saving, emission reducing and environment friendliness are achieved, and waste heat is circularly utilized.

Description

technical field [0001] The invention relates to the technical field of energy saving and environmental protection of coal-fired power stations, in particular to a flue gas comprehensive treatment device and a method thereof. Background technique [0002] At this stage, coal-fired power plants are fully implementing ultra-low emission and energy-saving renovations, greatly reducing coal consumption and pollution emissions for power generation, so as to achieve clean, efficient and information-based development of the power industry, and greatly reduce flue gas pollutant emissions. Domestic dust removal technologies mainly include electric dust removal, bag dust removal, tube-bundle dust collectors, etc., and electric dust collectors have high efficiency, low energy consumption, can handle high-temperature flue gas with a large amount of flue gas, are durable, have low maintenance pressure, and have no Secondary pollution and other advantages have been recognized international...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23J15/02F23J15/06F23J15/08
CPCF23J15/006F23J15/025F23J15/06F23J15/08F23J2215/20F23J2217/10F23J2900/15081Y02E20/30
Inventor 毛双华林国辉王浩添
Owner 浙江巨化热电有限公司
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