An underground gasification nozzle

An underground gasification and nozzle technology, applied in coal gasification, underground mining, construction, etc., can solve the problems affecting industrialization demand, open flame on the outer wall of the nozzle and pitting of burning coal particles, etc., to improve service life, prevent pitting, improve The effect of gas quality

Active Publication Date: 2019-04-02
ENN SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the outer wall of the existing nozzle is easily pitted by open flames and burning coal particles, which affects the needs of industrialization, the invention provides an underground gasification nozzle

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] like figure 1 and figure 2 As shown, an underground gasification nozzle provided by Embodiment 1 of the present invention includes an outer pipe body 1, a main water pipe 2 is arranged inside the outer pipe body 1; a shunt pipe 3 connected to the main water pipe 2, and the shunt pipe 3 is provided with an extension The water outlet 4 of the outer wall of the outer pipe body 1; wherein, the water outlet 4 is a tubular structure; the top of the water outlet 4 is closed, and a first water outlet 5 is arranged on the side wall of the top of the water outlet 4; the water outlet of the first water outlet 5 is biased toward The axial direction of the outer tubular body 1 forms any angle between 45° and 90° with the axial direction of the outer tubular body 1 .

[0052] This structural setting can make the water flow sprayed out of the first water outlet hole 5 contact the outer surface of the outer wall of the outer pipe body 1 as soon as possible, ensure the water cooling o...

Embodiment 2

[0054] The main difference between the second embodiment of the present invention and the first embodiment of the present invention is that a plurality of first water outlet holes 5 are arranged on the top side wall of the water outlet part 4; image 3 As shown, the water outlet direction of each first water outlet hole 5 deviates from the axial direction of the outer tube body 1 and forms any angle between 45° and 90° with the axial direction of the outer tube body 1 . The other structures of the second embodiment are basically the same as those of the first embodiment. For details, reference may be made to the statement of the first embodiment above, and details are not repeated here.

Embodiment 3

[0056] The main difference between the third embodiment of the present invention and the first embodiment of the present invention is that the three branch pipes 3 connected by the main water pipe 2, such as Figure 4 As shown, each branch pipe 3 is provided with a water outlet 4 protruding from the outer wall of the outer pipe body 1; wherein, the water outlet 4 is a tubular structure; the top of the water outlet 4 is closed, and a first water outlet is arranged on the top side wall of the water outlet 4 Hole 5; the water outlet direction of the first water outlet hole 5 is biased toward the axial direction of the outer tube body 1 and forms any angle between 45° and 90° with the axial direction of the outer tube body 1 .

[0057] As another option, the main water pipe 2 can also be connected to two, four or five branch pipes 3, and a plurality of first water outlet holes 5 can also be arranged on the top side wall of the water outlet part 4.

[0058] The other structures of ...

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Abstract

The invention discloses an underground gasification nozzle. The underground gasification nozzle includes an outer pipe body, and a main water pipe is arranged in the outer pipe body; the main water pipe is connected with a water outlet assembly for spraying water on the outer surface of the outer pipe body; For example, by spraying water directly on the outer pipe body, water can also enter the gasification zone to improve the gas quality; even if hot burning coal particles fall on the surface of the outer pipe during the gasification process, they can still be sprayed out by the water outlet assembly The water flow cools down quickly to prevent the nozzle from being burned by open fire or burning coal particles, improve the service life of the nozzle, and meet the requirements of industrialization.

Description

technical field [0001] The invention relates to the field of coal gasification, in particular to an underground gasification nozzle. Background technique [0002] During the underground gasification process, the nozzle of the gasification agent injection device and the wall of the oil pipe near the nozzle nozzle will be severely corroded and tempered. Among them, the reaction is more violent in the gasification process with high oxygen-enriched concentration, and the burning coal particles will fall near the nozzle and the surface of the nozzle. In the event of nozzle burnout, the nozzle needs to be lifted to the ground for maintenance, which means that the gas production will be stopped, and the rear synthesis system will also be stopped. In the industrial production process, this will cause losses of hundreds of thousands or millions of yuan. . [0003] In order to improve the service life of the nozzle and ensure the safety of coiled tubing gasification operation, water...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/295
CPCE21B43/295
Inventor 姚凯李金国刘清宇
Owner ENN SCI & TECH DEV
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