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Ultrasonic cooperative control preheating type ammonia combustion method and system

A collaborative control and ammonia combustion technology, applied in combustion equipment, lighting and heating equipment, etc., can solve the problem of high emissions, achieve the effect of reducing NOx emissions, increasing flame speed and temperature

Inactive Publication Date: 2022-03-01
QINGDAO UNIV OF SCI & TECH
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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a preheating ammonia combustion system with ultrasonic cooperative control, which aims to solve the problem of high NO emission during ammonia combustion in the existing technical solutions x and Microreactive Ammonia Problems

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  • Ultrasonic cooperative control preheating type ammonia combustion method and system

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] The specific implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0029] Such as figure 1 As shown, it is a structural diagram of an ultrasonic cooperatively controlled preheating ammonia combustion system provided by an embodiment of the present invention. The system includes:

[0030] The induced draft fan 1 is connected to the combustion chamber through the first pipeline, and is used to deliver air to the combustion chamber;

[0031] The gas storage tank 2 is connected with the combustion chamber through the second pipeli...

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Abstract

The invention is suitable for the technical field of ammonia combustion, and provides an ultrasonic cooperative control preheating type ammonia combustion method and system. A gas storage tank; the combustor is provided with an inner pipe and an outer pipe, an annular air passage is formed between the inner pipe and the outer pipe, and the combustor is connected with a flue gas treatment assembly used for recycling and treating flue gas; a preheating assembly; the ultrasonic assembly is arranged in the direction, perpendicular to the combustion jet flow, close to the burner nozzle and used for generating ultrasonic waves acting on flames; according to the invention, fuel preheating enhanced combustion and NOx emission reduction by ultrasonic excitation of flame are coupled, by combining the preheating assembly and the ultrasonic assembly, the ammonia gas fuel is subjected to preheating warming pretreatment and then is ignited, a new solution is provided for the problem of low combustibility of ammonia gas, stable combustion of the ammonia gas at the preheating temperature of 320 DEG C is realized, NOx emission is reduced, and the combustion efficiency is improved. And the flame speed and temperature are improved.

Description

technical field [0001] The invention belongs to the technical field of ammonia combustion, and in particular relates to a preheating ammonia combustion method and system controlled by ultrasonic cooperative control. Background technique [0002] Ammonia (NH 3 ) as a carbon-free, high-energy-density hydrogen carrier, its production process is mature, easy to liquefy, easy to store and transport, and the combustion product has zero carbon emissions. It has significant advantages and great potential in energy and power systems, and is recognized as an alternative to fossil Excellent choice of energy. [0003] Existing technical solutions: One is to use the swirl / turbulent premixed combustion method to stabilize combustion. The swirl combustion is a common method to improve the ammonia-lean premixed flame, which produces internal recirculation with a low-velocity zone, thereby enhancing flame stability . The second is to blend conventional fuel or oxygen (O 2 ) to increase t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C7/02F23J7/00
CPCF23C7/02F23J7/00
Inventor 张斌陈一峰苏毅
Owner QINGDAO UNIV OF SCI & TECH
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