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Boiler exhaust smoke white eliminating and inflow air preheating system

A technology for boiler flue gas and air intake, which is used in emission prevention, lighting and heating equipment, indirect carbon dioxide emission reduction, etc., to achieve the effect of reducing relative humidity, improving overall thermal efficiency, energy consumption and cost reduction

Pending Publication Date: 2018-12-11
常州磐石节能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: In order to overcome the defects of the existing boiler flue gas whitening device, and effectively utilize the waste heat resources in the boiler flue gas to improve boiler efficiency, the present invention provides a boiler exhaust smoke whitening and air inlet preheating system

Method used

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  • Boiler exhaust smoke white eliminating and inflow air preheating system

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Embodiment Construction

[0020] combined with figure 1 Specific embodiments of the present invention will be further described.

[0021] Such as figure 1 The shown boiler exhaust smoke whitening and air intake preheating system mainly includes a flue gas whitening device 1 , a boiler air intake preheating device 2 and a cooling water preparation device 3 . The flue gas whitening device 1 is provided with a hot water pool 18, a spray tower 1 4, a first hot water shower 5, a spray tower 2 6, a cooling water shower 7 and a first surface cooler from bottom to top. device 8. Among them, the boiler flue gas enters the flue gas whitening device 1 from the bottom inlet, and is initially cooled and dehumidified by the spray tower 14. The first hot water sprayed by the spray tower 4 flows from the top to the bottom of the tower. The residual hot water sprayed by the device 5 and the mixed circulating water composed of the cooling water falling from the upper spray tower No. Moisture is passed to the circula...

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Abstract

The invention discloses a boiler smoke white eliminating and inflow air preheating system. The system mainly comprises three parts including a smoke white eliminating device, a boiler inflow air preheating device and a cooling water producing device. High-temperature and high-humidity boiler smoke obtained after desulfurization and denitration enters from the bottom of the smoke white eliminatingdevice and then is exhausted from an upper outlet after being subjected to dehumidification, cooling and white eliminating treatment. Cooling water needed in the smoke cooling process is provided through the cooling water producing device, and hot water generated in the smoke white eliminating process is used for preheating boiler inflow air in the boiler inflow air preheating device. The whole system can effectively achieve boiler exhaust smoke white eliminating and pollutant control, waste heat can be utilized for heating the inflow air, and the boiler efficiency is improved.

Description

technical field [0001] The invention relates to a system for cooling boiler flue gas and preheating boiler inlet air by using circulating spraying cold and hot water, and belongs to the technical field of energy application and environmental treatment. Background technique [0002] Due to the acceleration of fossil fuel consumption and rapid population growth, more serious environmental problems have occurred in densely populated peri-urban and industrial areas. Among them, the problem of air pollution caused by gas and dust generated during the combustion of fossil fuels is particularly serious. Gas (coal-fired) boilers are generally used as heat sources for central heating in cities and towns in northern my country. When the boilers are running, their exhaust fumes contain a large amount of harmful gases such as sulfur dioxide and nitrogen oxides, so they often have to pass through corresponding desulfurization and denitrification devices before being discharged. In order ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23J15/04F23J15/06F23L15/04
CPCF23J15/04F23J15/06F23L15/045F23J2219/70F23J2215/20F23J2215/10Y02E20/34
Inventor 张伦
Owner 常州磐石节能科技有限公司
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