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Oil-gas dual-purpose low-nitrogen combustor for boiler combustion

A low-nitrogen burner, boiler combustion technology, applied in the direction of combustion air/fuel supply, gas fuel burner, burner, etc., can solve the problem of limited use of fuel quality, insufficient combustion, unsatisfactory nitrogen oxide emissions, etc. To achieve the effect of suppressing generation and emissions, reducing generation and emissions, and stabilizing and efficient combustion

Pending Publication Date: 2019-07-05
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides an efficient and environmentally friendly dual-purpose low-nitrogen combustor for oil and gas to effectively solve the problem of limited use of fuel quality, insufficient combustion, and nitrogen oxide emissions that do not meet national and local emission requirements The problem

Method used

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  • Oil-gas dual-purpose low-nitrogen combustor for boiler combustion
  • Oil-gas dual-purpose low-nitrogen combustor for boiler combustion
  • Oil-gas dual-purpose low-nitrogen combustor for boiler combustion

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Embodiment Construction

[0023] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0024] Please refer to Figure 1 to Figure 3 ,in, figure 1 It is a structural schematic diagram of an oil-gas dual-purpose low-nitrogen burner in an embodiment of the present invention; figure 2 and image 3 It is a schematic structural diagram of a nozzle assembly in an embodiment of the present invention.

[0025] The invention discloses an oil-gas dual-purpose low-nitrogen burner for boiler combustion, which includes the following components:

[0026] 1. Oil gun

[0027] The oil gun is a double-tube structure, including an atomizing medium pipe 3 , a fuel pipe 4 and a fuel nozzle 10 . The atomizing medium pipe 3 is in the shape of a cylindrical tube. The front end of the atomization medium pipe 3 is connected to the atomization medium inlet 1, and the rear end is connected to the atomization medium outlet 14, which is tapered. The fuel pipe 4 is...

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Abstract

The invention provides an oil-gas dual-purpose low-nitrogen combustor for boiler combustion. The oil-gas dual-purpose low-nitrogen combustor comprises an oil gun, a preheating tube, a gas gun, an airduct and a nozzle assembly. The oil gun is arranged in the middle of a combustor main body and comprises an atomizing medium pipe, a fuel pipe and an oil mist nozzle assembly. The preheating tube is in a hollow annular cylindrical shape and is arranged on the outer side face of the fuel tube in a surrounding mode. The air gun is arranged on the outer side of the preheating tube in a surrounding mode and comprises a fuel gas pipe and a fuel gas nozzle assembly. The air duct comprises a primary air duct and a secondary air duct. The primary air duct sleeves the outer side face of the air gun. Aswirler is arranged in the primary air duct. The tail end of the swirler is connected with a flaring type flame stabilizer; the flaring flame stabilizer is connected with a combustion chamber and is arranged in a furnace wall of the combustion chamber in a nested mode; and a plurality of secondary air inlets are formed in the periphery of the flaring type flame stabilizer. According to the oil-gasdual-purpose low-nitrogen combustor, the mixing of the oil and gas dual fuel and air can be promoted, the combustion of fuel is enhanced, the technologies such as air wind level and flue gas circulation are combined, and the generation and emission of nitrogen oxides are reduced.

Description

technical field [0001] The invention relates to an oil-gas dual-purpose low-nitrogen burner used for boiler combustion, and belongs to the technical field of combustion equipment. Background technique [0002] With the increasingly stringent national and local requirements on the emission of pollutants, especially nitrogen oxides, the fuel used in boilers has changed, and the traditional coal-based fuel has been gradually converted to fuel oil and gas. As a result, the application of fuel oil and gas burners is increasing day by day. Due to the user's uncertainty about the use and storage of fuel, the oil-gas dual-purpose burner came into being. Its appearance facilitates the flexible use of fuel for users, no longer limited to the use of one fuel, and no longer worry about the temporary shortage of a single energy source And had to shut down the problem. However, at present, oil-gas dual-purpose burners still face limited use of fuel quality, insufficient combustion, and ...

Claims

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Application Information

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IPC IPC(8): F23D17/00F23D11/38F23D11/44F23D14/24F23D14/26F23D14/58F23D14/66F23L1/00F23L9/00
CPCF23D11/38F23D11/44F23D14/24F23D14/26F23D14/58F23D14/66F23D17/002F23L1/00F23L9/00Y02E20/34
Inventor 王春华岳悦
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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