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Composite startup burner for powder coal gasification furnace

A technology for start-up burners and gasifiers, which is applied in the field of compound start-up burners for pulverized coal gasifiers, which can solve the problems of complex start-up process and burnout of the start-up burner head, so as to ensure the atomization effect and prolong the use The effect of longevity

Active Publication Date: 2013-04-17
SHANGHAI QIYAO THERMAL ENERGY ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Judging from the operation of the existing device, the start-up process is complicated, and the head of the burner is often burned out

Method used

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  • Composite startup burner for powder coal gasification furnace
  • Composite startup burner for powder coal gasification furnace
  • Composite startup burner for powder coal gasification furnace

Examples

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] see Figure 1 to Figure 5 , the compound start-up burner for pulverized coal gasification furnace of the present invention is composed of an inner burner 1 and an outer burner 2 coaxially sleeved from inside to outside with a front closing end, and the outer burner includes an inner wall 21, a middle layer 22. The outer wall 23, the passage 24 between the inner wall 21 and the middle layer 22, and the passage 25 between the middle layer 22 and the outer wall 23. A cooling water jacket 3 with a front end sealing is also provided around the outer wall 23 of the outer burner.

[0020] The inner burner 1 is provided with a channel, which is a natural gas channel, and an ignition electrode 11 is provided at the front end of the inner burner 1 .

[0021] The passage 24 between the inner wall of the outer burner and the middle layer is a fuel...

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Abstract

The invention discloses a composite startup burner for a powder coal gasification furnace. The composite startup burner comprises an inner burner and an outer burner which are provided with a front necking end respectively and are coaxially sleeved from the inside to the outside, wherein a cooling water jacket adopting a single-spin mode is arranged on the periphery of the outer wall of the outerburner; the front end of the inner burner is provided with an ignition electrode; and the nozzle of the burner is provided with a supersonic atomization device. The composite startup burner adopts supersonic atomization to ensure that the burner has small fluctuations in fuel and atomization airflow rate, and a little change in outlet speed in a process that the back pressure rises continuously so as to ensure the atomization effect and high-temperature flame far from the head of the burner; the composite startup burner adopts a center ignition mode to save an ignition burner to realize the two-in-one function, and adopts a single-spin cooling mode to ensure that the head of the burner is protected from damage under the condition of high temperature and high pressure to prolong the service life of the burner.

Description

technical field [0001] The invention relates to a start-up burner for a pulverized coal gasification furnace, in particular to a composite start-up burner for a pulverized coal gasification furnace. Background technique [0002] The existing pulverized coal gasifier starts the ignition process, using the combined operation of the ignition burner and the start-up burner. First, the start-up burner is ignited by the ignition burner, and then the gasifier is heated to high temperature and high pressure by the start-up burner. state. Judging from the operation of the existing device, the start-up process is complicated, and the head of the burner is often burned out. Contents of the invention [0003] The purpose of the present invention is to provide a new type of pulverized coal gasifier start-ignition composite burner in order to solve the above problems. (1.0MPa) state, creating suitable conditions for pulverized coal to be put into the gasifier. [0004] The purpose of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/56
CPCY02E20/18
Inventor 张永贵张世程匡建平朱国庆朱惠春朱尚龙刘恿孙熊浪
Owner SHANGHAI QIYAO THERMAL ENERGY ENG CO LTD
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