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Hot-blast recuperative furnace of biomass generating system

A biomass power generation and hot air heat exchange technology, which is used in household furnaces/stoves, solid heating fuels, lighting and heating equipment, etc., can solve problems such as insufficient flame stability, insufficient biomass combustion efficiency, and affecting heat exchange efficiency. , to achieve the effect of strengthening the thermal insulation effect, avoiding high temperature erosion, and stabilizing the central flame

Inactive Publication Date: 2012-09-05
南通海鹰机电集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of the above existing technologies are: the combustion efficiency of biomass is not high enough, and the flame is not stable enough, thus affecting the heat exchange efficiency

Method used

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  • Hot-blast recuperative furnace of biomass generating system
  • Hot-blast recuperative furnace of biomass generating system
  • Hot-blast recuperative furnace of biomass generating system

Examples

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Embodiment 1

[0012] The hot air heat exchange furnace of the biomass power generation system in this embodiment is as follows: figure 1 As shown, a cylindrical kettle body 2 with an insulating wall 1 is placed horizontally, and the center of one end is provided with a combustion port b through a conical section gradually expanding inward, and a chimney section 3 with a horizontal hot air outlet d extends upward from the other end. The chimney section is inserted with a heat exchanger 4 extending into the cylindrical still body from top to bottom. The heat exchange section 5 of the heat exchanger 4 is composed of a U-shaped heat exchange tube group, and the two upper ports communicate with the heat exchange medium inlet e and the heat exchange medium outlet f exposed outside the chimney section 3 respectively. A group of six air distribution pipes c extending into the cylindrical kettle body are distributed around the combustion port b. The outlets at the inner ends of each air distributio...

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Abstract

The invention relates to a hot-blast recuperative furnace of a biomass generating system, and belongs to the technical field of a heat exchange device. A cylindrical kettle body of the recuperative furnace is arranged horizontally, wherein a burning opening is arranged in the center of one end of the recuperative furnace, and a chimney section with a hot blast outlet is extended upwards on the other end of the recuperative furnace; a heat exchanger stretching into the cylindrical kettle body from top to bottom is inserted into the chimney section; the heat exchange section of the heat exchanger is U-shaped, and the two ports on the upper part of the heat exchanger are respectively communicated with a heat exchange medium inlet and a heat exchange medium outlet which are exposed outside the chimney section; a group of air distribution openings passing through the cylindrical kettle body are distributed at the periphery of the burning opening; outlets on the inner ends of the air distribution openings are tangentially distributed along a heat-insulating wall of the cylindrical kettle body, and a preset helical angle is formed in the direction of the outlets. The outlets on the innerends of the air opening are provided with the helical angle along the heat-insulating wall, so that air can be sufficiently and uniformly mixed with flue gas to realize the ideal combustion-supporting function to lead the burning more sufficient, and realize the function of steadying the flame in the center at the same time. In addition, the flame and the heat-insulating wall of the cylindrical kettle body are separated, so the heat-insulating effect is enhanced and the heat-insulating wall is prevented from being corroded at high temperature.

Description

technical field [0001] The invention relates to a combustion heat exchange device, in particular to a hot air heat exchange furnace for a biomass power generation system, and belongs to the technical field of heat exchange devices. Background technique [0002] Utilizing the heat of biomass combustion for heat exchange is an important way to turn waste into wealth and effectively utilize energy. The hot air heat exchange furnace is the key equipment to realize the above heat exchange. [0003] The search found that the Chinese patent application with the application number CN200610125954.0 discloses a biomass energy heat pipe hot blast stove. The hot section absorbs the biomass combustion heat of the furnace and the flue, and the superconducting phase conversion heat is transferred to the hot air generating chamber placed on the upper part of the tube plate, and the latent heat of condensation is released under the washing of the fan airflow to quickly heat the air, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24B1/188F24B1/191F23J15/06
CPCY02E20/30
Inventor 杨裕能
Owner 南通海鹰机电集团有限公司
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