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Gasifying furnace nozzle

A gasifier and nozzle technology, which is applied to injection devices, injection devices, etc., can solve the problems of reducing gasification efficiency, increasing fuel mixing time, and uneven injection of pulverized coal.

Inactive Publication Date: 2006-08-09
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a feeding method often causes uneven mixing of the reactants, or pulverized coal is blocked in the burner nozzle 2, resulting in uneven coal powder injection into the burner nozzle 2, and cannot produce a complete vortex, but shortens the gas flow. Coal stagnation time in furnace 1, resulting in reduced gasification efficiency
In addition, in order to increase the mixing time of the fuel, the length of the burner nozzle 2 is also increased, but the situation of pulverized coal clogging also occurs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Please refer to image 3 , is a preferred schematic diagram of the gasifier nozzle 100 of the present invention, and the nozzle 100 includes: an outer casing 10 and an inner casing 20 . The outer casing 10 has an air inlet 11 and a nozzle 12, the inner casing 20 has a feed inlet 21 and an outlet 22, and the inner casing 20 can include at least one vortex generating device 23 mounted on the inner casing 20 on the pipe wall. Wherein, the diameter of the nozzle 12 of the outer sleeve 10 is smaller than the diameter of the air inlet 11 ;

[0017] In the present embodiment, the air inlet 11 of the outer sleeve 10 can provide combustible or combustion-supporting gas; the feed inlet 21 of the inner sleeve 20 can provide solid fuel; Rotate, thereby forming a vortex gas.

[0018] In addition, the diameter of the inner casing inlet 21 in this embodiment is equal to the diameter of the outlet 22, and the vortex generating device 23 in this embodiment may include a set of fixed ...

Embodiment 2

[0022] Another preferred embodiment of this experiment is the same as the gasifier nozzle 100 of Embodiment 1, except that in the vortex generating device 23, a set of rotating helical blades 231 can be included, and the rotating helical blades 231 can also be Arranged around the inner tube wall. The rotary helical blade set 231 used in this embodiment is rotated by an electric motor.

Embodiment 3

[0024] A more preferred embodiment of this experiment is to use the gasifier nozzle 100 of Embodiment 1 in combination with a gasifier (not shown in the figure), which can promote solid fuel and combustible or combustion-supporting gas at the gasifier nozzle 100 The mixing chamber 30 inside is fully mixed, and then sent to the gasifier for reaction. The outer casing spout 12 of the gasifier nozzle 100 of the present invention can be connected with the inlet on the gasifier wall, and the mixed fuel can be ejected from the gasifier nozzle 100 from time to time to provide the reaction source of the gasifier . The application of the combination of the gasification furnace nozzle 100 and the gasification furnace of the present invention can make the fuel fully mixed in the mixing chamber 30 of the gasification furnace nozzle 100 before entering the gasification furnace, so as to improve the gasification of the gasification furnace Efficiency; and can effectively reduce the volume ...

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PUM

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Abstract

This invention is a gas stove nozzle. It is set on a gasifying stove body, the nozzle includes a outer tube which includes a air intake and a spout, and the spout diameter is less than the intake diameter. It also includes a inner tube, the inner tube includes a feed port, discharge hatch, and at least a eddy flow generating device set on tube wall of inner tube. The inner tube is set in outer tube, and the flow generating device interleaved between inner and outer tube. The stove in this invention can be used to gas stove, it can improve fuel intensive mixed before they enter the stove to improve gasification efficiency of the stove, and it can effectively reduce the stove volume and reaction time, so the cost is reduced.

Description

technical field [0001] The invention relates to a nozzle, especially a nozzle suitable for a gasification furnace capable of generating vortex. Background technique [0002] At present, coal gasification technology is mainly used in chemical synthesis, city gas production, and combined cycle power generation, etc., and one of the keys to the development of coal gasification technology is the gasification efficiency of the gasifier. [0003] Please refer to figure 1 and figure 2 , is an existing coal gasification furnace 1, wherein the pulverized coal feed is mixed with pulverized coal and reaction gas into the furnace by the burner nozzle 2 in a tangential direction, and a vortex is formed in the furnace to increase the amount of pulverized coal residence time in the furnace. However, such a feeding method often causes uneven mixing of the reactants, or pulverized coal is blocked in the burner nozzle 2, resulting in uneven coal powder injection into the burner nozzle 2, ...

Claims

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Application Information

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IPC IPC(8): B05B1/34
Inventor 沈政宪焦鸿文陈威丞
Owner IND TECH RES INST
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