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Gasification nozzle and gasification reactor

A gasification reactor and nozzle technology, which is applied in the direction of granular/powdered fuel gasification, etc., can solve the problems of back-mixing flow, affecting the reaction rate, uneven fluid flow rate, etc. The effect of mass heat transfer

Active Publication Date: 2017-02-22
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the structure of this type of multi-stage distributor, the structure is large, the installation and processing of the branch pipes are very complicated, and the uniformity of fluid distribution is not high. The top of the body cavity is also prone to back-mixing flow, which seriously affects the reaction rate

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  • Gasification nozzle and gasification reactor
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  • Gasification nozzle and gasification reactor

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Embodiment Construction

[0050] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0051] In the invention, where there is no indication to the contrary, the use of orientation words such as "up, down, top, bottom" usually refers to the direction shown in the drawings or refers to the vertical, perpendicular or gravitational direction. The terms used to describe the mutual positional relationship of the various components;

[0052] like figure 2 As shown, the present invention firstly provides a kind of gasification nozzle that is used on the gasification reactor 100, and this nozzle is input material flow through material flow conveying pipe joint 3, and material flow enters the gasification reactor 100 (for example reaction furnace) In th...

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Abstract

The invention discloses a gasification nozzle and a gasification reactor. The gasification nozzle comprises a connection flange (1), a material stream conveying pipe joint (3) and a material stream distributor, wherein the bottom portion of the connection flange is installed on the gasification reactor (100), the top surface of the connection flange is provided with a plurality of upper-and-down-penetrating holes used as nozzle branch pipes (11) and distributed at intervals, the material stream distributor is arranged on the top surface of the connection flange and comprises a cylinder having an inner cylinder cavity, the area of the top surface inlet of the inner cylinder cavity is smaller than the area of the bottom surface outlet so as to make the material stream entering from the top surface inlet outflow from the bottom surface outlet in a dispersed manner, the top surface inlet is connected to the material stream conveying pipe joint, the bottom surface outlet is butted to the plurality of the nozzle branch pipes, and the material stream outflowing from the bottom surface outlet in the dispersed manner can enter the gasification reactor through the plurality of the nozzle branch pipes. According to the present invention, the gasification nozzle has advantages of simple structure and convenient processing, and can effectively improve the dispersibility and the uniform distribution of the coal powder and improve the reaction rate of the gasification reactor.

Description

technical field [0001] The invention mainly relates to a nozzle structure, especially a gasification nozzle suitable for a gasification furnace. Background technique [0002] In the pulverized coal gasification process of the gasifier, the nozzle / burner structure of the gasifier is very important, which determines the uniformity of feeding of pulverized coal, the uniformity of mixing of pulverized coal and oxygen, etc. The reaction rate, reaction time, and carbon conversion rate are deeply affected. [0003] The nozzles in the prior art often use multi-stage distributors to achieve uniform distribution of feed and increase fluid kinetic energy. For example, a gasifier injector of a typical structure is disclosed in Chinese patent application CN 1903998 B, see figure 1 , the gasifier injector uses a two-stage distributor 22 to distribute the mainstream pulverized coal to a plurality of branch pipes 26 . The two-stage distributor 22 includes a main chamber 38 and a pluralit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/50C10J3/48
Inventor 巩志坚刘臻冯子洋李志远张锋华方薪辉彭宝仔陈微李文华
Owner CHNA ENERGY INVESTMENT CORP LTD
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