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Oxygen enriched combustion system

A technology of oxygen-enriched combustion and oxygen supply system, which is applied to burners, combustion methods, combustion types, etc., can solve problems such as difficulty in collection, and achieve the effects of facilitating capture, avoiding pulverized coal deflagration, and improving combustion efficiency.

Active Publication Date: 2012-07-18
SHANGHAI BOILER WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the CO 2 The deficiencies that are not easy to collect, provide a new type of oxygen-enriched combustion system

Method used

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Embodiment Construction

[0035] Embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings of the specification, elements or devices with similar structures or functions will be denoted by the same reference numerals. The drawings are only for the convenience of illustrating various embodiments of the present invention, and are not intended to describe the present invention exhaustively, nor limit the scope of the present invention.

[0036] figure 1 A schematic structural diagram of an oxygen-enriched combustion system according to an embodiment of the present invention is shown. In this embodiment, the oxygen-enriched combustion system includes: a boiler body 1 , a swirl burner 2 arranged on the boiler body 1 , and the swirl burner 2 includes a primary air duct and a secondary air duct. A flue gas heat exchanger 3 and a dust collector 4 are installed in the exhaust pipe of the boiler body 1, and the dust collector 4 is connected to the induc...

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Abstract

The invention discloses an oxygen enriched combustion system, which comprises a boiler body, a cyclone combustor, a primary air circulating system, a secondary air circulating system and an oxygen supply system. The boiler body consists of a smoke exhaust pipeline, the cyclone combustor comprises a primary air channel and a secondary air channel and is disposed on the boiler body, the smoke exhaust pipeline is connected with the primary air channel of the cyclone combustor by the primary air circulating system, the smoke exhaust pipeline is connected with the secondary air channel of the cyclone combustor by the secondary air circulating system, and the oxygen supply system is connected with the primary air channel and the secondary air channel and inputs oxygen. The temperature of primary air of an outlet of a coal mill can be greatly increased by means of drying recycled smoke and conveying pulverized coal, the highest temperature of the primary air can reach about 200 DEG C, the pure oxygen can be quickly injected into the high-temperature primary air / airflow of the pulverized coal and is sufficiently mixed with the high-temperature primary air / the air flow of the pulverized coal, and accordingly the pulverized coal is injected into a boiler and is quickly ignited and combusted; combustion efficiency is greatly improved; and concentration of CO2 of the smoke exhausted from the boiler reaches 80% at least, and the CO2 can be captured conveniently.

Description

technical field [0001] The invention relates to a coal-fired boiler technology for a power station, in particular to an oxygen-enriched combustion system suitable for a swirl pulverized coal burner. Background technique [0002] With the development of human industry, the issue of climate change has become a concern of the whole world. Although there are still different debates on the causes of climate warming, most theories believe that it is related to the greenhouse gas CO produced by human activities. 2 associated with elevated concentrations. [0003] Fossil fuels will still be the main component of world energy for a long period of time in the future, and the power station industry using fossil fuels as raw materials occupies an important position in the use of fossil fuels, and has also become a relatively concentrated source of carbon dioxide emissions, with huge emissions. Therefore, the control and treatment of carbon dioxide emissions from thermal power plants is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23L7/00F23K3/02F23D1/02
CPCY02E20/322Y02E20/32Y02E20/34
Inventor 李月华张建文肖琨赵洋
Owner SHANGHAI BOILER WORKS
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