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Round barrel type pipe-type heating furnace

A tubular heating furnace, cylindrical technology, applied in water heaters, fluid heaters, lighting and heating equipment, etc., can solve problems such as uneven heat intensity

Pending Publication Date: 2018-08-28
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a cylindrical tubular heating furnace which has Improved heat intensity distribution

Method used

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  • Round barrel type pipe-type heating furnace
  • Round barrel type pipe-type heating furnace
  • Round barrel type pipe-type heating furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The radiation chamber 10 is cylindrical, with a diameter of φ7600mm, the height of the radiation chamber 10 is 13m, the length of the first furnace tube 50 is 12m, and the outer diameter is φ168mm. The first furnace tubes 50 are arranged in a single row at equal intervals; φ152mm, length 4.0m, 18 rows of second furnace tubes. The first burner 30 is a circular burner, and the total heat load accounts for 70% of the calorific value of the whole furnace; the second burner 40 is a wall burner, and the total heat load accounts for 30% of the calorific value of the whole furnace; The cross-section is a regular hexagon, the diameter of the circumscribed circle is 3.0m, and the height of the middle furnace wall 20 is 2.0m.

Embodiment 2

[0043] A structure similar to that of Embodiment 1 is adopted, except that the cross-section of the middle furnace wall 20 is circular. The middle furnace wall 20 has a diameter of 3.5m and a height of 2.0m. The total heat load of the first burner 30 accounts for 80% of the calorific value of the entire furnace, and the total heat load of the second burner 40 accounts for 20% of the calorific value of the entire furnace.

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Abstract

The invention relates to the field of chemical industry equipment and discloses a round barrel type pipe-type heating furnace. The pipe-type heating furnace comprises a radiation chamber (10), a middle furnace wall (20), first burners (30), second burners (40) and a plurality of first furnace pipes (50), the multiple first furnace pipes are arranged inside the radiation chamber surrounding the circumferential direction of the radiation chamber, the middle furnace wall encloses a closed ring shape and is located at the center portion of the radiation chamber, the first burners are arranged inside the space enclosed by the middle furnace wall, the second burners are arranged inside the radiation chamber and located between the middle furnace wall and the first furnace pipes, and the height of the middle furnace wall is lower than those of the first furnace pipes. According to the round barrel type pipe-type heating furnace, the middle furnace wall divides the inner portion of the radiation chamber into two heat supply areas in the height direction, the first burners mainly heat the upper portions of the first furnace pipes, the second burners mainly heat the lower portions of the first furnace pipes, the heat intensity peak value of the first furnace pipes is effectively reduced, and heat intensity distribution of the first furnace pipes in the height direction is made to be moreuniform.

Description

technical field [0001] The invention relates to the field of chemical equipment, in particular to a cylindrical tubular heating furnace. Background technique [0002] Tube heating furnace is an important heating equipment in the chemical industry. Such as figure 1 As shown, the existing cylindrical tubular heating furnace is a single-stage central heating mode, wherein the cylindrical tubular heating furnace usually includes a convection chamber 60 and a radiation chamber 10, and the radiation chamber 10 is provided with circumferentially arranged The vertically placed first furnace tube 50 and the burners F arranged in the radiation chamber along the circumference, the heat of the burner F is transferred to the first furnace tube 50 around by radiation and convection heat transfer, so as to heat the first furnace tube Process medium within 50. But the first furnace tube 50 is only subjected to the direct radiation of single-sided flame and flue gas, and the average therm...

Claims

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Application Information

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IPC IPC(8): F24H1/46F24H9/18F24H9/00
CPCF24H1/46F24H9/00F24H9/18
Inventor 赵日峰杨军卫李鹏王瑜朱亚东李龙冯永生韩艳萍肖家治李国志肖风杰王娟
Owner CHINA PETROLEUM & CHEM CORP
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