Nozzle for preparing synthesized gas by partial oxidation of liquid fuel

A technology of liquid fuel and synthetic gas, applied to gas fuel burners, burners, combustion methods, etc., can solve problems such as easy leakage of burner cooling system, leakage of burner cooling system, and short service life of burner, and achieve the goal of manufacturing With the effect of convenient maintenance, improved atomization performance and long service life

Active Publication Date: 2009-09-02
SHANGHAI YINENG GAS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Improper design of the burner structure will lead to poor atomization effect of the burner, ablation of the end of the burner, leakage of the burner cooling system, etc., resulting in serious consequences
Existing burner patented technologies, such as Chinese patent application numbers: 93118217.4, 94214422.8, 95111750.5, etc., have problems such as poor atomization effect of the burner, easy leakage of the burner cooling system, and short service life of the burner.

Method used

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  • Nozzle for preparing synthesized gas by partial oxidation of liquid fuel
  • Nozzle for preparing synthesized gas by partial oxidation of liquid fuel
  • Nozzle for preparing synthesized gas by partial oxidation of liquid fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] After the above-mentioned burner is installed in the gasifier disclosed in Chinese patent 98110616.1, when the fuel is a coal-water slurry with a concentration of 61% (mass %), with 98% pure oxygen as the gasification agent, the gasification result is a synthetic Effective gas composition CO+H in the gas 2 (vol%) 83.0%, ash residual carbon is 4%, and the continuous service life of the burner can reach 4 months, fully meeting the requirements of coal-water slurry gasification.

[0049] The structural parameters of said burner are as follows:

[0050] α is 5°, β is 85°; ε is 5°, γ is 40°; is 50°;

[0051] The ratio of the nozzle diameter d of the inner nozzle (3) to the height h of the nozzle straight section (301), i.e. h: d=10;

[0052] The distance s between the nozzle end face of the center nozzle (3) and the nozzle end face of the middle ring nozzle (2) is 10mm;

[0053] The distance t between the nozzle end face of the middle ring nozzle (2) and the nozzle end ...

Embodiment 2

[0061] After the above-mentioned burner is installed in the gasifier disclosed in Chinese patent 98110616.1, when the fuel is a coal-water slurry with a concentration of 63% (mass %), with 99.6% pure oxygen as the gasification agent, the gasification result is a synthetic Effective gas composition CO+H in the gas 2 (vol%) 85%, ash residual carbon is 4%, the continuous service life of the burner can reach 4 months, which fully meets the requirements of coal-water slurry gasification.

[0062] The structural parameters of said burner are as follows:

[0063] α is 20°, 3 is 60°; ε is 30°, γ is 50°; is 40°;

[0064] The ratio of the nozzle diameter d of the inner nozzle (3) to the height h of the nozzle straight section (301), i.e. h: d=0;

[0065] The distance s between the nozzle end face of the center nozzle (3) and the nozzle end face of the middle ring nozzle (2) is 1mm;

[0066] The distance t between the nozzle end face of the middle ring nozzle (2) and the nozzle end ...

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Abstract

The invention discloses a burner for producing synthesis gas by partial oxidation of liquid fuel. The present invention optimizes the design of the center nozzle and the end of the middle ring nozzle of the existing burner for partial oxidation of liquid fuel for synthesis gas, so that it has atomization performance Excellent, uniform mixing, long service life of the burner cooling system, etc. The burner of the present invention, on the one hand, guarantees the requirements for the mechanical strength and wear of the burner nozzle, and on the other hand, avoids the local fluid internal backflow area that is easily generated at the end of the nozzle, and greatly promotes the efficient contact of the gas-liquid medium, which can Significantly promote the atomization process of the liquid under the action of high-speed airflow, and the atomization performance of the burner is obviously improved. The burner of the present invention has the advantages of simple structure, convenient manufacture and maintenance, excellent atomization performance, uniform mixing, long service life of the burner cooling system, etc., and is widely used.

Description

technical field [0001] The invention relates to a burner for producing synthesis gas, in particular to a method for preparing synthesis gas (CO+H) by partial oxidation of liquid fuel. 2 ) of the burner. Background technique [0002] Liquid fuel (including liquid hydrocarbon fuel, or pumpable slurry of solid carbonaceous material, solid carbonaceous material selected from pulverized coal, petroleum coke, biomass or solid waste) partial oxidation to produce an entrained flow bed of synthesis gas The gasification method is to chemically react liquid fuel and gasification agent under high temperature and high pressure in an entrained bed to produce synthesis gas mainly composed of carbon monoxide and hydrogen. This gasification method has high temperature and pressure, high equipment production intensity, high carbon conversion rate, and strong adaptability to fuels. The synthetic gas produced can be used for power generation, production of chemicals and fertilizers, synthetic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/32F23D14/48
Inventor 刘海峰李伟锋周志杰于遵宏龚欣王辅臣于广锁王亦飞代正华陈雪莉梁钦锋郭晓镭曹显奎
Owner SHANGHAI YINENG GAS TECH
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