Ultra-low nitrogen oxide combustion method, matched combustion head and combustion device

A technology of nitrogen oxides and combustion method, applied in the field of combustion, can solve the problems of high cost, large energy consumption, vibration, etc., and achieve the effect of no operating cost, high combustion efficiency and simple process

Active Publication Date: 2019-04-16
唐山亿昌热能科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Problems of condensed water, vibration, high energy consumption and high cost of flue gas backfire technology (FGR)

Method used

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  • Ultra-low nitrogen oxide combustion method, matched combustion head and combustion device
  • Ultra-low nitrogen oxide combustion method, matched combustion head and combustion device
  • Ultra-low nitrogen oxide combustion method, matched combustion head and combustion device

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Embodiment Construction

[0063] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0064] See attached Figure 1-9 , the present invention comprehensively utilizes the energy of gas and air itself, through multiple jet ejection of flue gas to form a sufficient mixture of gas and flue gas, air and flue gas fully mixed, and then effectively reduce the overall calorific value of gas and air content Oxygen content, and then through the comprehensive application of gas classification and air classification to achieve safe and reliable ultra-low nitrogen combustion effect. This technology does not need to introduce flue gas from the outside for back-burning, nor does it need to pre-mix gas and air at the fan, but directly injects gas into the furnace through the combustion head for combustion to achieve direct combustion technology with ultra-low NOx emissions. The direct-fired ultra-low NOx emission combustion device is a combustion devic...

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Abstract

The invention discloses an ultra-low nitrogen oxide combustion method. The combustion method is multi-stage composite jet flow low-temperature combustion, the gas multi-stage jet flow and air multi-stage jet flow manner is adopted in a combustion head, multi-stage composite injecting is formed to enable smoke to be subjected to entrainment, through different channels and different distribution proportions, and different speeds and gradients, gas, air and smoke are organized according to the rule, and finally, through the combustion head, mixed air flow is directly sprayed into a hearth to be combusted. Direct-combustion type ultra-low nitrogen combustion is achieved, the technical property is excellent, the structure is simple, economy is good, ultralow emission is achieved, the field process is simple, running safety is high, investment is small, running cost does not exist, the combustion efficiency is high, and the output power is wide.

Description

technical field [0001] The invention relates to a combustion method, in particular to an ultra-low nitrogen oxide combustion method, a matching combustion head and a combustion device. Background technique [0002] In recent years, the problem of air pollution represented by PM2.5 has become the focus of national public opinion and public attention. The frequency of large-scale and simultaneous occurrence of heavy air pollution is increasing, which seriously restricts the sustainable development of social economy and threatens the health of the people. . At present, the air pollutants produced by combustion are mainly three kinds of smoke, sulfur dioxide and nitrogen oxides. Different from soot and sulfur dioxide, the nitrogen oxide control technology of gas and liquid gas boilers is still in the development stage. The relatively mature boiler dust removal and desulfurization technology, and the low nitrogen oxide combustion technology are not yet mature, especially the exi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/02F23D14/64F23C9/00F23C7/00F23D14/46F23D14/72
CPCF23C7/00F23C9/00F23D14/02F23D14/46F23D14/64F23D14/72Y02E20/34
Inventor 李观春
Owner 唐山亿昌热能科技有限公司
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