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Double-sided radiation spiral pipe heating furnace

A technology of spiral coil and heating furnace, which is applied in lighting and heating equipment, furnace, furnace type and other directions, can solve the problems of wear and unsafety of the outer arch of sharp bends, and achieves long service life, uniform heating, and avoidance of furnaces. The effect of tube coking

Inactive Publication Date: 2013-04-24
BEIJING PETROCHEM ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the oil (water) coal slurry hydrocracking reaction feed heating furnace with high solid content, high flow rate and high pressure in the pipe, severe wear will occur on the inner side of the outer arch of the sharp bend, even if the outer arch of the elbow is used Thickening is also a passive anti-wear method, which has potential serious unsafe accident hazards

Method used

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  • Double-sided radiation spiral pipe heating furnace
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  • Double-sided radiation spiral pipe heating furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, this embodiment provides a flat wall-attached flame burner heating two-step furnace type double-sided radial spiral coil heating furnace. It is a combined section with a rectangular lower part of a positive trapezoid, including steel structure, flat wall-attached flame burner 1-1, spiral coil 2, pipe frame 3, inner ring radiation wall 4-1, outer ring radiation wall 4-2, Inner ring furnace wall panel 5-1, outer ring furnace wall panel 5-2, flue exhaust duct 6.

[0024] The outer ring furnace wall plate 5-2 is arranged inside the steel structure of the heating furnace. The inner ring radiation wall 4-1 is attached to the outer side of the inner ring furnace wall panel 5-1, the outer ring radiation wall 4-2 is attached to the inner side of the outer ring furnace wall panel 5-2, and the spiral coil tube 2 is formed by the tube The frame 3 is fixedly arranged between the inner ring radiation wall 4-1 and the outer ring radiation wall 4-2; 1 heat...

Embodiment 2

[0028] Such as figure 2 As shown, this embodiment also provides a combination of a flat wall-attached flame burner and a radiant wall-type flameless burner for heating with a double-sided furnace wall spiral coil heating furnace. The cross-section is rectangular, including flat wall-attached flame burner 1-1, radiant wall-type flameless burner 1-2, spiral coil 2, pipe frame 3, inner ring radiant wall 4-1, outer ring radiant wall 4 -2. Inner ring furnace wall panel 5-1, outer ring furnace wall panel 5-2, flue exhaust duct 6.

[0029] The inner ring radiation wall 4-1 is attached to the outer side of the inner ring furnace wall panel 5-1, the outer ring radiation wall 4-2 is attached to the inner side of the outer ring furnace wall panel 5-2, and the spiral coil 2. The pipe frame 3 is fixed between the inner ring radiation wall 4-1 and the outer ring radiation wall 4-2; when the height of the spiral coil furnace tube is above 5-6m, except for the flat wall-attached flame burne...

Embodiment 3

[0033] Such as image 3 As shown, this embodiment also provides a radiant wall-type flameless burner heating double-sided radiant spiral coil heating furnace. Type flameless burner 1-2, spiral coil 2, pipe frame 3, outer ring radiation wall 4-1, inner ring radiation wall 4-2, inner ring furnace wall 5-1, outer ring furnace wall 5- 2. Exhaust flue 6.

[0034] The inner ring radiation wall 4-1 is attached to the outer side of the inner ring furnace wall panel 5-1, the outer ring radiation wall 4-2 is attached to the inner side of the outer ring furnace wall panel 5-2, and the spiral coil 2 is fixed by the pipe frame 3 and placed between the inner ring radiation wall 4-1 and the outer ring radiation wall 4-2; the inner ring radiation wall 4-1 and the outer ring radiation wall 4-2 are flameless The burner 1-2 heats up the radiation wall of the inner and outer rings to a high temperature, and heats the medium to be heated by the heating furnace through the spiral coil 2 that is rad...

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Abstract

The invention relates to the technical field of tube heating furnaces for petroleum refining, petrochemical industry and coal chemical industry, particularly to a double-sided radiation spiral pipe heating furnace which comprises a steel framework, an outer ring radiation wall, a spiral pipe, an inner ring radiation wall and a flame combustor, wherein the outer ring radiation wall is attached inside the steel frame, the spiral pipe is positioned on the inner side of the outer ring radiation wall; the inner ring radiation wall is positioned on the inner side of the spiral pipe; and the flame combustor heats for enabling the inner ring radiation wall and the outer ring radiation wall to reach a high temperature to form radiations, and then the inner ring radiation wall and the outer ring radiation wall supply heat to the spiral pipe in a double-sided radiation mode. The double-sided radiation spiral pipe heating furnace can heat furnace pipes evenly, improve average heat strength of radiations of the furnace pipes, save cost, shorten the hydraulic length of the furnace pipe, increase the flow speed of medium inside the pipes, and avoid cock inside the pipes. Meanwhile, abrasions caused by high solid content medium inside the pipes to the inner walls of bending pipes can be avoided, and potential risks caused by the abrasions can be eliminated.

Description

technical field [0001] The invention relates to the field of tubular heating furnaces used in petroleum refining, petrochemical and coal chemical industries, in particular to a double-sided radiation spiral coil heating furnace. Background technique [0002] The mainstream furnace type of the existing hydrocracking reaction feed heating furnace adopts 180 0 Furnace type with double-sided radiant heating of horizontal horizontal tubes connected by sharp elbows. For the oil (water) coal slurry hydrocracking reaction feed heating furnace with high solid content, high flow rate and high pressure in the pipe, severe wear will occur on the inner side of the outer arch of the sharp bend, even if the outer arch of the elbow is used Thickening is also a passive anti-wear method, which has potential serious unsafe accident hazards. If the spiral coil tube is used, the wear in the tube can be fundamentally prevented due to the large bending-to-diameter ratio. However, the traditiona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B17/00
Inventor 刘清林刘纯权李林李文辉卢群
Owner BEIJING PETROCHEM ENG
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