Half premixing short flame combustor suitable for large heat value difference of two kinds of fuel gas
A flame combustion and fuel gas technology, which is applied to gas fuel burners, burners, combustion methods, etc., can solve problems such as consumption of natural gas, and achieve the effect of ensuring performance
Inactive Publication Date: 2018-11-23
BEIJING AEROSPACE PETROCHEM TECH & EQUIP ENG CORP LTD
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Problems solved by technology
This makes the low calorific value by-product gas of the factory can only be burned as waste gas through the torch every year, and consumes a large amount of natural gas at the same time
Method used
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[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0018] Such as figure 1 , figure 2 As shown, the semi-premixed short-flame burner suitable for two kinds of fuel gases with large calorific value differences according to the present invention includes a burner nozzle 1, a secondary damper 2, an ejector tube 3, a primary damper 4 and a fuel gas nozzle assembly 5; The nozzle 1 has a fire hole 9; the fuel gas nozzle assembly 5 includes a fuel gas inlet A6, a fuel gas inlet B7, and a concentric nozzle 8; the fuel gas nozzle assembly 5 is provided with a primary damper 4; In the middle; the ejector tube 3 is connected to the nozzle 1; the ejector tube 3 is provided with a secondary damper 2.
[0019] When there is no by-product gas with low calorific value in the factory, the burner uses natural gas as fuel. The natural gas enters through the fuel gas inlet A6 and is sprayed from one of the co...
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The invention belongs to the technical field of combustors, and particularly relates to a half premixing short flame combustor suitable for the large heat value difference of two kinds of fuel gas. Afuel gas nozzle assembly comprises a fuel gas inlet A, a fuel gas inlet B and a concentric nozzle. A primary air door is arranged on the fuel gas nozzle assembly. The concentric nozzle stretches intoan injection barrel. The injection barrel is connected with a fire nozzle. A secondary air door is arranged on the injection barrel. According to the half premixing short flame combustor, the two fuelgas inlets are designed, when the fuel gas with the high heat value is utilized, the fuel gas enters one fuel inlet of the combustor, and when the fuel gas with the low heat value is utilized, the fuel gas enters from the two fuel inlets of the combustor at the same time. By means of the design of the combustor, natural gas can be adopted as fuel when no factory byproduct gas is generated, when factory byproduct gas is generated, the byproduct gas can be used as fuel, and natural gas is stopped from being used. The effects of turning waste into health and saving energy are achieved, and hugeeconomic benefits can be generated.
Description
technical field [0001] The invention belongs to the technical field of burners, and in particular relates to a semi-premixed short-flame burner suitable for two types of fuel gases with large calorific value differences. Background technique [0002] The natural gas preheating furnace and the oxygen preheating furnace play a vital role in the natural gas to acetylene process, and the fuel used by the burners for these two heating furnaces is natural gas. A pair of natural gas preheating furnace and oxygen preheating furnace will burn 5 million cubic meters of natural gas every year. In acetylene plants, by-product gas with low calorific value is usually generated. If it is not utilized, it will be burned as waste gas through the torch. If it can be used as fuel for burners instead of natural gas, each pair of burners will save 5 million cubic meters of natural gas per year. It can save considerable cost for the factory and generate huge economic benefits. [0003] At prese...
Claims
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IPC IPC(8): F23D14/08F23D14/46F23D14/64F23N3/06
CPCF23D14/08F23D14/46F23D14/64F23N3/06F23N2237/08F23N2237/16
Inventor 冯晨王健李易峰张宏宇李忠义韩学斌张枚蒲孜
Owner BEIJING AEROSPACE PETROCHEM TECH & EQUIP ENG CORP LTD