Garbage furnace combustion air preheating system

A waste furnace and air technology, applied in preheating, combustion methods, components of steam boilers, etc., can solve the problems of wasting energy, underutilized heat of hydrophobicity, low thermal efficiency, etc., and achieve the effect of improving preheating efficiency

Inactive Publication Date: 2021-04-09
上海双木散热器制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steam air preheater in the prior art has the following disadvantages: the water generated by the primary extraction steam and the drum saturated steam directly enters the deaerator after use, the heat in the water is not fully utilized, the thermal efficiency is low, and waste energy

Method used

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  • Garbage furnace combustion air preheating system

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Embodiment Construction

[0024] The application will be described in further detail below in conjunction with the accompanying drawings.

[0025] refer to figure 1 , the embodiment of the present application discloses a preheating system for combustion air of a garbage furnace, including a steam source and a heat exchange device 1 , and the heat exchange device 1 has an air inlet 11 and an air outlet 12 . The heat exchange device 1 includes a casing 13 , a hydrophobic heating stage and a steam heating stage. An air passage is formed in the casing 13 , and the hydrophobic heating stage and the steam heating stage are located in the air passage. The steam source includes a first steam source 2 and a second steam source 3, the hydrophobic heating stage includes a first hydrophobic heating stage 14 and a second hydrophobic heating stage 15, and the steam heating stage includes a first steam heating stage 16 and a second steam heating stage 17 . The gas pressure of the first steam source 2 is lower than ...

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Abstract

The invention relates to a garbage furnace combustion air preheating system. The system comprises a steam source and a heat exchange device, wherein the heat exchange device is provided with an air inlet and an air outlet, the heat exchange device comprises a shell, hydrophobic heating stages and steam heating stages, an air passage is formed in the shell, the hydrophobic heating stages and the steam heating stages are located in the air passage and arranged in the air flowing direction from low temperature to high temperature, each steam heating stage corresponds to one hydrophobic heating stage, the steam source communicates with inlets of the steam heating stages through steam pipelines, and hydrophobic ports of the steam heating stages communicate with inlets of the corresponding hydrophobic heating stages. According to the garbage furnace combustion air preheating system, heat energy in drained water generated by the steam heating stages can be fully utilized, gradient heating of the air is realized, and the heat energy utilization efficiency of the preheating system is improved.

Description

technical field [0001] The present application relates to the field of air preheaters, in particular to a preheating system for combustion air of a garbage furnace. Background technique [0002] The air preheater is an air heating device that uses the waste heat generated by the waste incinerator to increase the temperature of the air entering the waste incinerator to facilitate combustion. Its main function is to increase the theoretical combustion temperature of the fuel, ensure the furnace temperature, and improve the combustion efficiency. Since there are many acid gases in the flue gas of waste incinerators, it is easy to cause low-temperature corrosion at low temperatures, so steam air preheaters are generally used to heat air with steam. The steam air preheater has a great influence on the stable combustion of garbage, the stability of the thermal system, and the thermal efficiency of the whole plant. [0003] The steam air preheater in the prior art is generally he...

Claims

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Application Information

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IPC IPC(8): F23L15/00F22D1/50F22B37/78
CPCF23L15/00F22D1/50F22B37/78Y02E20/34
Inventor 刘瑞杰杨世通方冬平刘波徐晓燕
Owner 上海双木散热器制造有限公司
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