CN201954975U - 蓄热式热管换热器 - Google Patents

蓄热式热管换热器 Download PDF

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CN201954975U
CN201954975U CN2010206757008U CN201020675700U CN201954975U CN 201954975 U CN201954975 U CN 201954975U CN 2010206757008 U CN2010206757008 U CN 2010206757008U CN 201020675700 U CN201020675700 U CN 201020675700U CN 201954975 U CN201954975 U CN 201954975U
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heat
pipe
flue gas
steam
heat storage
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CN2010206757008U
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徐长存
周志东
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Wuxi Dongfang Environmental Engineering Design & Research Institute Co Ltd
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Wuxi Dongfang Environmental Engineering Design & Research Institute Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

本实用新型涉及一种蓄热式热管换热器，包括烟气进口、烟气通道、热管管组、烟气出口、循环管道和蒸汽聚结器，烟气通道顶部设有烟气进口，底部设有烟气出口，烟气通道内部设有热管管组，热管管组通过循环管道与蒸汽聚结器连接，蒸汽聚结器设于烟气通道外侧顶部位置，还包括蓄热体，蓄热体设置于烟气通道内部热管管组上端。本实用新型结构简单合理，增加蓄热体，避免热管管组因烟气温度波动产生损坏，由于蓄热体的吸热作用，蓄热式热管蒸汽发生器的工作温度能够提高至1200℃，比普通热管换热器高300℃，并且余热回收***简单，不需要其他降温设备。

Description

蓄热式热管换热器
技术领域
本实用新型涉及一种换热器，尤其涉及一种能回收热量的蓄热式热管换热器。
背景技术
冶金行业采用普通热管蒸汽发生器回收炼钢电弧炉内排烟气热量，产生蒸汽。在一个冶炼周期内，内排烟气温度波动很大，通常从120℃升高至1200℃，然后再降至120℃。普通热管蒸汽发生器不能完全适应以上工况，主要存在以下不足：
1、普通热管蒸汽发生器工作温度不大于900℃。换言之，采用普通热管蒸汽发生器不能完全回收烟气热量。
2、余热回收***复杂，必须采用其他降温设备使烟气温度降低至900℃以下。
3、烟气温度的交替变化导致热管蒸汽发生器受压元件强度下降，容易发生泄漏。
发明内容
针对上述缺点，本实用新型需要解决的技术问题是提供一种蓄热式热管换热器。
本实用新型采用的技术方案是：
蓄热式热管换热器，包括烟气进口、烟气通道、热管管组、烟气出口、循环管道和蒸汽聚结器，烟气通道顶部设有烟气进口，底部设有烟气出口，烟气通道内部设有热管管组，热管管组通过循环管道与蒸汽聚结器连接，蒸汽聚结器设于烟气通道外侧顶部位置，还包括蓄热体，蓄热体设置于烟气通道内部热管管组上端。
蓄热体由至少2组、至少2排、至少2列的管状或实心棒通过排列组合而成。
本实用新型的优点是：结构简单合理，增加蓄热体，避免热管管组因烟气温度波动产生损坏，由于蓄热体的吸热作用，蓄热式热管蒸汽发生器的工作温度能够提高至1200℃，比普通热管换热器高300℃，并且余热回收***简单，不需要其他降温设备。
附图说明
下面结合附图和具体实施方式对本实用新型作进一步详细描述。
图1为本实用新型的结构示意图。
其中：1、烟气进口，2、烟气通道，3、蓄热体，4、热管管组，5、烟气出口，6、循环管道，7、蒸汽聚结器。
具体实施方式
为了加深对本实用新型的理解，下面将结合实施例和附图对本实用新型作进一步详述，该实施例仅用于解释本实用新型，并不构成对本实用新型保护范围的限定。
参照图1所示，本实用新型蓄热式热管换热器，包括烟气进口1、烟气通道2、热管管组4、烟气出口5、循环管道6、蒸汽聚结器7和蓄热体3，烟气通道2顶部设有烟气进口1，底部设有烟气出口5，烟气通道2内部设有热管管组4和蓄热体3，蓄热体3设置于热管管组4上端，热管管组4通过循环管道6与蒸汽聚结器7连接，蒸汽聚结器7设于烟气通道2外侧顶部位置。
下面对本实用新型的工作过程作进一步说明：
工作时，高温烟气从烟气进口1进入烟气通道2，依次流过蓄热体3和热管管组4，放出热量，温度降低，最后从烟气出口5排出。当烟气温度高于600℃时，蓄热体3从烟气吸收热量，烟气温度低于600℃时，蓄热体5向烟气放出热量，保持烟气温度稳定，避免热管管组因烟气温度波动产生损坏，另外，由于蓄热体的吸热作用，蓄热式热管蒸汽发生器的工作温度能够提高至1200℃，比普通热管换热器高300℃。热管管组4一直从烟气中吸收热量，蒸汽聚集器7内饱和水沿循环管道6进入热管管组4，吸收热量，形成汽水混合物，汽水混合物在自然循环力推动下又回到蒸汽聚集器7，经汽水分离后，形成蒸汽外供，这样简单回收余热，不需要其他降温设备，更加环保。

Claims (2)

1.蓄热式热管换热器，包括烟气进口、烟气通道、热管管组、烟气出口、循环管道和蒸汽聚结器，烟气通道顶部设有烟气进口，底部设有烟气出口，烟气通道内部设有热管管组，热管管组通过循环管道与蒸汽聚结器连接，蒸汽聚结器设于烟气通道外侧顶部位置，其特征在于，还包括蓄热体，蓄热体设置于烟气通道内部热管管组上端。
2.根据权利要求1所述的蓄热式热管换热器，蓄热体由至少2组、至少2排、至少2列的管状或实心棒通过排列组合而成。
CN2010206757008U 2010-12-16 2010-12-16 蓄热式热管换热器 Expired - Lifetime CN201954975U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983121A (zh) * 2014-05-30 2014-08-13 中冶南方工程技术有限公司 用于稳定烧结烟气温度的***及其控制方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983121A (zh) * 2014-05-30 2014-08-13 中冶南方工程技术有限公司 用于稳定烧结烟气温度的***及其控制方法
CN103983121B (zh) * 2014-05-30 2015-11-25 中冶南方工程技术有限公司 用于稳定烧结烟气温度的***及其控制方法

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Granted publication date: 20110831