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Low-heat-value gas high-temperature air flameless combustion system and method

A high-temperature air and flameless combustion technology, which is applied in the direction of combustion method, combustion air/fuel supply, combustion using block fuel and gaseous fuel, etc., can solve gas leakage, combustion or explosion, and difficult adjustment of smoke flow distribution and other problems, to achieve the effect of preventing combustion and leakage, improving heat energy utilization efficiency, and expanding the scope of use

Inactive Publication Date: 2018-05-18
SHANGHAI ZHIXIN INTELLIGENT ELECTRIC CO LTD
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AI Technical Summary

Problems solved by technology

[0005] It should be pointed out that because the flow distribution of the flue gas in the gas channel is not easy to adjust, it is difficult to control the gas preheating temperature, which may cause gas cracking due to the high gas preheating temperature, which will have a certain impact on the safety of the combustion system
In addition, because there is a certain amount of oxygen in the flue gas, it may cause combustion or explosion of the gas mixed with oxygen in the gas channel, seriously affecting the safe operation of the combustion system
In addition, at the moment of gas reversing, gas leakage may also occur, increasing the risk of accidental combustion of gas

Method used

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  • Low-heat-value gas high-temperature air flameless combustion system and method

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Embodiment Construction

[0036] The following combination figure 1 , the technical content, structural features, achieved goals and effects of the present invention will be described in detail through preferred embodiments.

[0037] It should be noted that in this article, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. It is to be understood that the terms so used are interchangeable under appropriate circumstances.

[0038] Such as figure 1 As shown, the low-calorific-value gas high-temperature air flameless combustion system provided by the present invention includes: a combustion chamber 9, which is symmetrically provided with a first burner A and a second burner B on both sides, and the first burner A It communicates with the second burner B throug...

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Abstract

The invention relates to a low-heat-value gas high-temperature air flameless combustion system and method. The system comprises a combustion chamber, a first heat storage body, a second heat storage body, a first gas preheating module, a second gas preheating module and a four-way reversing valve, wherein a first burner and a second burner are symmetrically arranged on the two sides of the combustion chamber, and communicate through a gas channel; the first heat storage body and the second heat storage body are symmetrically arranged in the gas channel, and are respectively positioned on the outer sides of the first burner and the second burner; the first gas preheating module and the second gas preheating module are symmetrically arranged in the gas channel, are respectively positioned onthe outer sides of the first heat storage body and the second heat storage body, and respectively communicate to the combustion chamber through fuel pipes; and the four-way reversing valve is connected to the gas channel, and is positioned between the first gas preheating module and the second gas preheating module. The system can realize total preheating of gas, prevents accidental combustion and leakage of the gas, increases the energy utilization rate, can realize recovery of high-temperature smoke afterheat, improves heat exchange conditions, and improves the use efficiency of heat energy.

Description

technical field [0001] The invention relates to a high-temperature air flameless combustion system and method, in particular to a high-temperature air flameless combustion system and method using low calorific value gas, and belongs to the technical field of high-temperature air flameless combustion. Background technique [0002] High-temperature air flameless combustion technology is a new combustion technology developed in the 1990s, with high efficiency, energy saving and low NO X The double advantage of emissions. In China, which vigorously promotes energy conservation and environmental protection, the development of this technology is of great significance. High-temperature air flameless combustion technology is currently mainly used in metallurgical heating furnaces, glass melting furnaces and other industries, and will be further expanded to industrial boilers, gasifiers, solid waste incinerators and other fields in the future, and has broad application prospects. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C5/08F23D14/66F23L15/02
CPCF23C5/08F23D14/66F23L15/04F23L2900/15043Y02E20/34
Inventor 曹甄俊潘全亮雷威
Owner SHANGHAI ZHIXIN INTELLIGENT ELECTRIC CO LTD
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