Self-backheating swirling burner for fuel gas with low heat value

A combustion device and low calorific value technology, applied in gas fuel burners, burners, combustion methods, etc., can solve problems affecting energy utilization efficiency, reduced economic benefits, incomplete combustion, etc., to expand the range of fuel utilization and improve combustion performance, the effect of increasing the initial temperature

Inactive Publication Date: 2012-04-25
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, low calorific value gas is difficult to achieve stable combustion by relying on its own calorific value, so it is often incompletely burned, and the flue gas contains a high concentration of harmful gases, which not only affects energy utilizati

Method used

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  • Self-backheating swirling burner for fuel gas with low heat value
  • Self-backheating swirling burner for fuel gas with low heat value
  • Self-backheating swirling burner for fuel gas with low heat value

Examples

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Example Embodiment

[0022] Examples:

[0023] Please refer to figure 1 As shown, the self-regenerative low-calorific value gas swirling combustion device of the present invention includes an outer cylinder body 9, an inner tube 10 sleeved in the outer cylinder body 9, and the outer cylinder body 9 and the inner tube 10 form an air channel 2 arranged in The combustion-supporting air inlet 1 on the tail of the outer cylinder 9 and the gas inlet 3 fixed on the head of the outer cylinder 9 are arranged in the swirl generating device 6 in the inner tube 10, and the swirl generating device 6 connects the inner tube 10 The cavity is divided into a mixing chamber 7 and a combustion chamber 8. The inner tube 10 is fixed in the outer cylinder 9 through an inner tube bracket 11, and also includes a gas nozzle 5 connected to the outer cylinder 9, an outlet of the air channel 2 and The outlet of the gas nozzle 5 converges in the mixing chamber 7, and the swirl generating device 6 is located behind the gas nozzle...

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Abstract

The invention discloses a self-backheating swirling burner for a fuel gas with a low heat value. The structure comprises an outer barrel of a burner, an inner tube of the burner and a swirling generation device, wherein the outer barrel of the burner and the inner tube of the burner are coaxially configured, and the swirling generation device is arranged in the inner tube of the burner. The self-backheating swirling burner is characterized in that combustion air exchanges heat with the high-temperature smoke of a combustion chamber by virtue of an inner pipe wall to improve the temperature of the combustion air; and then after the combustion air enters a mixing chamber to be mixed with the fuel gas with a low heat value, the mixture begins rotating by virtue of the swirling generation device to obviously improve the combustion stability of the fuel gas with a low heat value to realize complete combustion. The burner can be applied to the technical field of thermal power engineering, can fully utilize various types of fuel gases generated in the industrial processes, such as metallurgy, petrochemical industry, biomass pyrogenation, waste gasification treatment and the like, and also can be used for burning a common fuel gas.

Description

technical field [0001] The invention relates to a gas combustion device, in particular to a self-regenerating low calorific value gas swirl combustion device, which can be applied to the fields of energy, environmental protection, chemical industry and the like. Background technique [0002] Due to low calorific value, complex composition and scattered sources, low calorific value gas has great differences in combustion characteristics. Generally, low calorific value gas is difficult to achieve stable combustion by relying on its own calorific value, so it is often incompletely burned, and the flue gas contains a high concentration of harmful gases, which not only affects energy utilization efficiency, but also causes environmental pollution. The existing low-calorific-value gas combustion often requires the addition of high-calorific-value gas to achieve stable combustion, which greatly reduces the economic benefits of these high-calorific-value gases. Contents of the inv...

Claims

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Application Information

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IPC IPC(8): F23D14/02F23D14/70F23D14/58
Inventor 杨浩林汪小憨高娜杨卫斌赵黛青
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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