Oxygen-enriched combustion system

An oxygen-enriched combustion and oxygen supply system technology, applied in the direction of burners, combustion methods, combustion types, etc., can solve problems such as difficult collection, achieve the effect of easy capture and improve combustion efficiency

Active Publication Date: 2012-07-11
SHANGHAI BOILER WORKS
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  • 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

[0034] 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.

[0035] 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, on which a swirl burner 2 is arranged, 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 induced draft fa...

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Abstract

The invention discloses an oxygen-enriched combustion system. The oxygen-enriched combustion system comprises a boiler body, a cyclone combustor, a primary air circulating system, a secondary air circulating system and an oxygen supply system, wherein the boiler body comprises a smoke exhausting pipeline; the cyclone combustor comprises a primary air channel and a secondary air channel and is arranged on the boiler body; a ring-shaped oxygen chamber is arranged at a primary air channel outlet, and is communicated with a hearth of the boiler body by oxygen spraying pipes which are uniformly distributed; the primary air circulating system is connected with the smoke exhausting pipeline and the primary air channel of the cyclone combustor; the secondary air circulating system is connected with the smoke exhausting pipeline and the secondary air channel of the cyclone combustor; and the oxygen supply system is connected with the primary air channel and the secondary air channel and oxygen is input into the oxygen supply system. The oxygen-enriched combustion system has the advantages that the temperature of primary air of an outlet of a coal mill is improved, and the highest temperature is up to about 200 DEG C; the pure oxygen can be injected into the hearth quickly, so that the coal powder is sprayed into the boiler to be ignited and combusted quickly; the combustion efficiency is greatly improved; and the concentration of CO2 in smoke exhausted by the boiler is up to more than 80%, and the capture of CO2 is conveniently realized.

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): F23L7/00F23D1/02
CPCY02E20/34
Inventor 李月华张建文张翔陈楠
Owner SHANGHAI BOILER WORKS
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