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Gas fuel low-nitrogen combustor

A low-nitrogen burner, gas fuel technology, which is applied to gas fuel burners, combustion with multiple fuels, burners, etc., can solve the problems of insufficient nitrogen oxide emissions, insufficient combustion, and limited use of fuel quality. , to achieve the effect of inhibiting generation and emissions, reducing generation and emissions, and stable and efficient combustion

Pending Publication Date: 2019-07-26
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a high-efficiency, environmentally friendly gas fuel low-nitrogen burner to effectively solve the problems of limited use of fuel quality, insufficient combustion, and nitrogen oxide emissions that do not meet national and local emission requirements. question

Method used

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  • Gas fuel low-nitrogen combustor
  • Gas fuel low-nitrogen combustor

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Embodiment Construction

[0021] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0022] Please refer to Figure 1 to Figure 2 ,in, figure 1 It is a structural schematic diagram of a gas fuel low-nitrogen burner in an embodiment of the present invention; figure 2 It is a schematic structural diagram of a gas nozzle assembly in an embodiment of the present invention.

[0023] The invention discloses a gas fuel low-nitrogen burner, which comprises the following components:

[0024] 1. Preheating tube

[0025] The preheating pipe 1 is in the shape of a cylinder, and is arranged in the middle of the main body of the burner, coaxial with the center line of the burner. The front end of the preheating pipe 1 is closed, and the rear end is open to connect with the combustion chamber. The setting of the preheating pipe 1 can provide an internal circulation channel for the internal circulation in the furnace, so that the combustion products...

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Abstract

The invention discloses a gas fuel low-nitrogen combustor, in particular to a combustor suitable for gas fuels with low heat values. The gas flow low-nitrogen combustor comprises a pre-heating tube, agas gun, an air flue, and a spray nozzle assembly, wherein the pre-heating tube is a cylinder, is arranged on the middle part of a combustor main body, and is coaxial with the center line of the combustor; the gas gun surrounds the outer side of the pre-heating tube, and comprises a fuel gas tube, and a fuel gas spray nozzle assembly; the air flue comprises a primary air flue and a secondary airflue; the primary air flue is arranged on the outer side surface of the gas gun in a sleeving mode; a swirler is arranged in the primary air flue; the tail end of the swirler is connected to a flaringtype flame holder; the flaring type flame holder is connected to a combustion chamber, and is embedded into a combustion chamber furnace wall; and a plurality of secondary air inlets are formed around the flaring type flame holder. The gas fuel low-nitrogen combustor can promote mixing of fuels and air, strengthens combustion of the fuels, combines technologies such as air grading and flue gas circulating, and reduces generation and emission of nitric oxides.

Description

technical field [0001] The invention relates to a gas fuel low-nitrogen burner, in particular to the field of boiler burners using low calorific value gas fuel. Background technique [0002] On the one hand, fuel combustion has made great contributions to human production and life and promoted human progress, but it has also brought disasters to human beings. Combustion emissions pollute the environment, harming human health and the growth of plants and animals. With the continuous development of society, this environmental pollution problem has become increasingly prominent. Based on this, the fuel for boilers has gradually changed from the traditional coal-fired to fuel oil and gas. The application fields and quantities of gaseous fuels are increasing day by day, and the types of gaseous fuels are gradually increasing. In addition to natural gas, there are other artificial gaseous fuels such as biomass gas and coal gas. However, most of these artificial gaseous fuels ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C5/32F23D14/26F23D14/48
CPCF23C5/32F23D14/26F23D14/48
Inventor 王春华岳悦潘颢丹
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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