CN201731489U - 一种工业炉窑的新型蓄热式装置 - Google Patents

一种工业炉窑的新型蓄热式装置 Download PDF

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CN201731489U
CN201731489U CN2010205006548U CN201020500654U CN201731489U CN 201731489 U CN201731489 U CN 201731489U CN 2010205006548 U CN2010205006548 U CN 2010205006548U CN 201020500654 U CN201020500654 U CN 201020500654U CN 201731489 U CN201731489 U CN 201731489U
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heat accumulation
heat
furnace wall
regenerator
furnace
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赵晓雯
赵晓波
侯英武
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Tangshan Jingzhao Technology Development Co., Ltd.
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赵晓雯
赵晓波
侯英武
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

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Abstract

本实用新型涉及蓄热式工业炉窑技术领域,具体的说是一种工业炉窑的新型蓄热式装置。目前的内置通道式和整体外置式蓄热室炉墙结构复杂,炉墙内横向通道与纵向通道交错,在长期高温状态下使用,容易造成空、煤气窜气,燃气直接在炉墙内燃烧,炉墙寿命缩短。水平烧嘴式蓄热室蓄热时,气流水平流动,热气流上浮,在垂直断面上温度分布不均,下层蓄热体不能发挥蓄热能力,造成加热炉蓄热能力不够。本实用新型采用蓄热室设在炉墙底部,在每个蓄热室顶部设有双圆形竖直气流通道;双圆形竖直气流通道和炉墙浇注成为一个整体;蓄热室中不同种类蓄热体分层排放,小球状蓄热体放置在蓄热室上部;蜂窝状蓄热体放置在蓄热室下部。

Description

一种工业炉窑的新型蓄热式装置
一、技术领域
本实用新型涉及蓄热式工业炉窑技术领域,具体的说是一种工业炉窑的新型蓄热式装置。
二、背景技术
蓄热式燃烧技术(亦称高温空气燃烧技术)是二十一世纪跨时代最先进的燃烧技术。它是企业利用低热值煤气、高效燃烧、提高能源综合利用率,减少CO2和NOX排放而改善环境的新技术,是降低生产成本,提高企业竞争力的重要技术措施。
蓄热室的结构是蓄热式燃烧技术中的关键环节。目前主要有内置通道式、独立外置式、水平烧嘴式等多种蓄热室结构,其结构存在以下缺点:内置通道式蓄热室炉墙结构复杂,炉墙内横向通道与纵向通道交错布置,在长期高温状态下使用,交错通道损坏容易造成空、煤气窜气,燃气混合直接在炉墙内燃烧,炉墙寿命无法保证。独立外置式蓄热室结构,蓄热室内墙双面受热,长期高温下内墙容易变形、坍塌,导致因炉墙损坏而停炉。水平烧嘴式蓄热室蓄热时,气流水平流动蓄热,热气流上浮,蓄热室内在垂直断面上温度分布不均,下层蓄热体不能充分发挥蓄热能力,造成整个加热炉蓄热能力不够,无法达到预期产量。
目前,蓄热室内均是填充单一蓄热体,或为蜂窝状蓄热体,或为陶瓷小球蓄热体。蜂窝状蓄热体比表面积大,蓄热能力大,但易堵塞、易碎;陶瓷小球蓄热体不易堵塞,坚固耐用,但蓄热能力小。
三、发明内容
本实用新型的目的是提供一种工业炉窑的新型蓄热式装置,可以解决上述的问题。
本实用新型的技术方案是蓄热室设在炉墙底部,在每个蓄热室顶部设有双圆形竖直气流通道;双圆形竖直气流通道和复合炉墙通过浇注成为一个整体;蓄热室中不同种类蓄热体分层排放,小球状蓄热体放置在蓄热室上部;蜂窝状蓄热体放置在蓄热室下部。
本实用新型的设计说明:
1、蓄热室布置在复合炉墙的下部,蓄热室内部为蜂窝状蓄热体和陶瓷小球蓄热体的混装结构。气流在蓄热室内呈竖直上下流动,冷态气流在上升过程中逐渐加热,热态炉气在下降过程中逐渐冷却,符合气体动力学原理。因此,蓄热室在水平横截面上气流分布均匀,蓄热能力发挥充分,不易出现气流短路现象。
当热态炉气流带着灰尘及氧化铁皮微粒首先穿过陶瓷小球蓄热层时,该层起到了过滤作用。经过较长时间运行后,表面小球发生粘连板结,保护了下层的蜂窝状蓄热体不至于堵塞。充分发挥了陶瓷小球抗堵塞能力强的特点;下层蜂窝状蓄热体比表面积大,蓄热能力强、热惰性小,从而保证了蓄热室的周期换向正常工作。
2、在蓄热室顶部开设有双圆形竖直气流通道,双通道结构代替了原单通道结构,解决了单通道内侧墙双面受热的问题;圆形通道解决了方形通道应力集中,通道及炉墙易坏的问题;双圆形竖直气流通道和炉墙整体浇注成为一体,通道之间不易窜气。
本实用新型的优点是设有的双竖直通道结构简单,通道间不易窜气,圆形结构更能解决通道受热时应力集中的问题,气流在蓄热室内呈竖直流动,气流蓄热均匀。整个蓄热室结构坚固耐用,提高了炉体的使用寿命。蓄热体的混装解决了单一蓄热体易堵塞、易碎,蓄热能力小等问题。
四、附图说明
图1为本实用新型的剖面图
图2为图1的H-H剖面图
五、具体实施方式
图中:1蓄热室、2蜂窝状蓄热体、3陶瓷小球蓄热体、4双圆形竖直气流通道、5复合炉墙、6喷口。
如图1、2所示,蓄热室1设在炉墙底部,在每个蓄热室1顶部设有双圆形竖直气流通道4;双圆形竖直气流通道4和复合炉墙5通过浇注成为一个整体;蓄热室中不同种类蓄热体分层排放,陶瓷小球蓄热体3放置在蓄热室上部;蜂窝状蓄热体2放置在蓄热室下部。
当工作状态为蓄热体蓄热时,高温烟气从炉内进入喷口6,经双圆形竖直通道4进入蓄热室,再分别竖直通过陶瓷小球蓄热体3、蜂窝状蓄热体2对蓄热体进行蓄热,最终冷却后的烟气从蓄热室底部排出。
当工作状态为蓄热体放热时,冷态气流从蓄热室底部经过蜂窝状蓄热体2、陶瓷小球蓄热体3竖直向上流动进行预热,蓄热体放热,经过预热的气流从蓄热室顶部经过双圆形竖直通道4送至喷口6进入炉内进行燃烧。

Claims (1)

1.一种工业炉窑的新型蓄热式装置,其特征是蓄热室(1)设在炉墙底部,在每个蓄热室(1)顶部设有双圆形竖直气流通道(4);双圆形竖直气流通道(4)和复合炉墙(5)通过浇注成为一个整体;蓄热室中不同种类蓄热体分层排放,陶瓷小球蓄热体(3)放置在蓄热室上部;蜂窝状蓄热体(2)放置在蓄热室下部。
CN2010205006548U 2010-08-15 2010-08-15 一种工业炉窑的新型蓄热式装置 Expired - Fee Related CN201731489U (zh)

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