A standardized modular unit of direct-fired linear burner with high turndown ratio

A modular unit and adjustment ratio technology, which is applied to gas fuel burners, burners, combustion methods, etc., can solve the problems of limited application, poor ignition stability, and heat utilization, and achieve the purpose of suppressing nitrogen oxides (NOx) The generation, ensuring the reliability and safety of work, reducing the effect of heat spread and heat radiation

CN104089288BInactive Publication Date: 2016-04-13SHANGHAI WISEBOND TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-04-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a standardized module unit of a direct combustion type linear combustor with a high turndown ratio. The standardized module unit comprises a fuel gas spray nozzle provided with a fuel gas spray hole, porous air inlet wing plates with combustion air spray holes, a front baffle, a rear baffle, a left baffle, a right baffle and a fixing end plate provided with an ignition pin, a fame detecting device and a flame observing mirror. The porous air inlet wing plates comprise the left air inlet wing plate and the right air inlet wing plate which are arranged on the two sides of the fuel gas spray nozzle in a V-shaped structure mode, and the left air inlet wing plate and the right air inlet wing plate are assembled with the front baffle, the rear baffle, the left baffle and the right baffle to form an upper mixing combustion area and a lower combustion air feeding area. In the working process, fuel gas is delivered out through the fuel gas spray nozzle, combustion air is delivered through spray holes in the left air inlet wing plate and the right air inlet wing plate in a blowing and pressing mode, the fuel gas and the combustion air are mixed in the combustion area, the step-by-step ignition working mode that fuel gas on the periphery of the ignition pin is ignited first, then scattering combustion is achieved, ignition is reliable and the phenomenon of detonation can be avoided is adopted, generated heat can be used directly, and the standardized module unit has the advantages of being high in turndown ratio and fuel gas burn-off rate, reliable in working and obvious in energy-saving and environment-friendly effect and has high practicability.
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Description

technical field

[0001] The invention relates to the technical field of gas heating equipment, in particular to a standardized modular unit of a direct-fired linear burner with a high adjustment ratio. Background technique

[0002] Burners are an important part of industrial boilers. Existing gas burners generally use the diffusion combustion method of injecting gas into the air for ignition and combustion. Since the combustion is carried out without pre-mixing the gas and air, it is generally Existence: 1. The burnout rate of gas is low, and there is still a high concentration of combustible components in the flue gas after combustion; 2. The ignition stability is poor, because a large amount of air will be blown in immediately during ignition, and it is easy to extinguish the ignition The flame will affect the flame stability of the burner, and because the air flow in the combustion zone is difficult to control, the combustion adjustment ratio is generally low; 3. The heat ...

Examples

Embodiment Construction

[0049] The present invention will be further described below in conjunction with the accompanying drawings and typical embodiments.

[0050] exist figure 1 Among them, the standardized module unit main body of the high adjustment ratio direct-fired linear burner of the present invention includes a gas nozzle 1, a porous air intake wing plate 2, a baffle plate 3, a fixed end plate 4, an ignition needle 5, a flame detector 6 and a flame The observation mirror 7 is characterized in that: the porous air intake vane 2 includes a left air intake vane 21 and a right air intake vane 22, and the baffle plate 3 includes a front end baffle 31, a rear end baffle Plate 32, left side baffle 33, right side baffle 34, wherein:

[0051] exist figure 2 and image 3 Among them, the main body of the gas nozzle 1 is in the shape of a hollow long cylinder, and the main working panel A12 with a number of gas injection holes 121 arranged in an orderly manner is arranged on the left and right side...