CN102200407A - 回转式气气换热器无泄漏密封系统轴向隔离密封舱 - Google Patents

回转式气气换热器无泄漏密封系统轴向隔离密封舱 Download PDF

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CN102200407A
CN102200407A CN2011101913507A CN201110191350A CN102200407A CN 102200407 A CN102200407 A CN 102200407A CN 2011101913507 A CN2011101913507 A CN 2011101913507A CN 201110191350 A CN201110191350 A CN 201110191350A CN 102200407 A CN102200407 A CN 102200407A
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gas
rotor
shell
fan
sealing system
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CN102200407B (zh
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程爱平
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Beijing Xinda Tiancheng Environmental Protection Science And Technology Ltd Co
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Priority to EP12812033.4A priority patent/EP2730877B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L15/00—Heating of air supplied for combustion
    • F23L15/02—Arrangements of regenerators
    • 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
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • F28D19/041—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier with axial flow through the intermediate heat-transfer medium
    • F28D19/042—Rotors; Assemblies of heat absorbing masses
    • 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
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • F28D19/047—Sealing means
    • 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
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

回转式气气换热器无泄漏密封系统轴向隔离密封舱涉及换热器，具体涉及一种回转式气气换热器密封装置的改进。它包括转子（1）、外壳（2）、密封系统及传动装置，所述外壳（2）和转子（1）围成的环室靠近扇形密封板（3）两侧的地方分别设有迷宫式隔离密封段（5），外壳（2）于相邻两隔离密封段（5）间的部分设有隔离风管路与低泄漏风机连接。它具有密封效果好，漏风率低的优点。

Description

回转式气气换热器无泄漏密封系统轴向隔离密封舱
技术领域
本发明涉及换热器，具体涉及一种回转式气气换热器密封装置的改进。
背景技术
回转式烟气换热器(GGH)是目前湿法FGD装置应用得最为广泛的烟气换热器，它的工作原理与电厂主体工程的旋转式空气预热器相同，是通过平滑的或带波纹的金属薄片或载热体将未净化的高温烟气的热量传递给净化后的冷烟气。 未净化的烟气通过转子的一侧，净化后的烟气通过转子的另一侧。转子缓慢地旋转，这样传热元件轮流通过热的未净化烟气和冷的净化后烟气。在未净化烟气通过传热元件时，未净化烟气中部分热量传给了传热元件。在传热元件转到净化后烟气侧时，它所携带的热量又传给了净化后烟气，因此将净化后的烟气温度提高，传热元件本身被冷却。这两股烟气分别从转子沿直径分开的两个部分流过，这两个部分由密封板分开，两股气流的流动方向相反。
GGH由圆柱形转子、圆筒形外壳、传动装置、密封装置和吹灰系统几部分组成。转子被分成许多扇形仓格，每个扇形窗中装满了由波形板组成的传热元件。转子横截面分隔成原烟气和净烟气两个流通区，两个流通区之间由过渡区隔开。原烟气区和净烟气区分别与进出口烟道相连。在转子周界上装有环形齿条，电动机通过传动装置带动转子旋转。受热面交替通过原烟气区和净烟气区，原烟气自下而上将热量传递给受热面，这部分受热面转到净烟气区时，又将蓄积的热量传给自上而下流动的净烟气。转子每转一周，即完成一个传热过程。过渡区是将原烟气区与净烟气区隔开的密封区，由于原烟气的压力比净烟气压力大，为了防止原烟气通过转子与外壳之间的间隙泄漏入净烟气区，GGH装置了径向、环向和轴向密封。
目前国内脱硫系统使用的回转式GGH多数都是引进国外的技术（美国、德国、法国），在引进的多种回转式GGH中都存在着密封效果不够好、漏风率偏高的缺陷。漏风率保证值为0.5-1%，而实际应用时漏风率经常无法达到保证值，统计测试结果较好的GGH漏风率能达到0.8%，平均达到1.5%，最低的达到0.6%，最严重的超过10%（华电莱芜），严重响脱硫系统总的效率。
发明内容
本发明所要解决的技术问题是：提供一种密封效果好的回转式气气换热器无泄漏密封系统轴向隔离密封舱。
本发明的技术解决方案是：它包括转子、外壳、密封系统及传动装置，其特征在于，所述外壳和转子围成的环室靠近扇形密封板两侧的地方分别设有迷宫式隔离密封段，外壳于相邻两密封段间的部分设有隔离风管路与低泄漏风机连接。
本发明的技术效果是：它具有密封效果好，漏风率低的优点。
附图说明
图1为本发明的结构示意图；
图2为图1的A-A结构示意图；
图3为图1的B-B结构示意图；
图4为图1的C-C结构示意图；
图5为实施方式二密封段的结构示意图；
图6为实施方式三密封段的结构示意图。
具体实施方式
如图1至4所示，它包括转子1、外壳2、密封系统及传动装置，外壳2于转子的两端分别设有两对扇形密封板3，所述扇形密封板3上开有长孔4并设有隔离风管路与低泄漏风机连接。
所述外壳2和转子1围成的环室靠近扇形密封板3两侧的地方分别设有迷宫式隔离密封段5，外壳2于相邻两隔离密封段5间的部分设有隔离风管路与低泄漏风机连接。
所述与低泄漏风机输出端连接的管路和原烟气侧管路上分别设有压力传感器，两压力传感器间连接有差压变送器6，差压变送器6与可控制低泄漏风机出口管路阀门的开度或者低泄漏电机频率的控制器连接。
在隔离低泄漏风的配风箱（或者管路）上安装压力测点，在与之对应的原烟气侧管路上加装压力测点，在压力测点之间安装差压变送器6，将差压信号送至专用的PLC或者集控室的DCS，利用差压信号的变化精确调整控制低泄漏风机出口管路阀门的开度或者低泄漏电机的频率，达到密封精确调整、节能运行的效果。
合理调整吹扫风流量，要求达到1.5-2倍回转携带漏泄量。
采用本系列技术可以将回转式GGH漏风率降至0.1-0.4%，超过目前国际领先水平。每月每台600MW机组可节约成本几十万元。
实施方式一：
如图4所示，在驱动端和非驱动端上下扇形密封板3对称轴线处开长孔4并加装密封风管路，通入隔离低泄漏风。通入低泄漏风后上下两对扇形密封板3与转子1之间形成有效的隔离风幕。在吹扫风的配风箱或者管路上安装压力测点，在与之对应的原烟气侧管路上加装压力测点，在压力测点之间安装差压变送器6，将差压信号送至专用的PLC或者集控室的DCS，利用差压信号的变化精确调整控制低泄漏风机出口管路阀门的开度或者低泄漏电机的频率，达到密封精确调整、节能运行的效果。
实施方式二：
如图5所示，所述迷宫式隔离密封段由密封板7与转子1外周构成，密封板7其内壁为与转子1外周相适应的弧形面，密封板7固定在外壳2内壁。此种结构适合于转子1外周上固定有轴向密封片8的情况，在由转子1和外壳2围成的环室内靠近扇形密封板3的地方（驱动端和非驱动端）各加装两块弧形密封板7，共四块密封板7，在驱动端和非驱动端各形成一个轴向隔离密封舱9。每个轴向隔离密封舱9两侧的密封段由GGH转子1轴向密封片8与弧形密封板7形成多级密封小空间，构成迷宫密封结构，加强密封效果。在驱动端和非驱动端的轴向隔离密封舱9接入隔离低泄漏风，隔离围带驱动环室内的原烟气与净烟气，形成围带驱动环室内的隔离密封，阻止泄漏。
实施方式三：
如图6所示，所述迷宫式隔离密封段由固定在外壳2内壁上的若干轴向密封片与转子1外周构成。此种结构适合于转子1外周为光滑的圆周面。

Claims (2)

1.回转式气气换热器无泄漏密封系统轴向隔离密封舱，包括转子（1）、外壳（2）、密封系统及传动装置，其特征在于，所述外壳（2）和转子（1）围成的环室靠近扇形密封板（3）两侧的地方分别设有迷宫式隔离密封段（5），外壳（2）于相邻两隔离密封段（5）间的部分设有隔离风管路与低泄漏风机连接。
2.如权利要求1所述的回转式气气换热器无泄漏密封系统轴向隔离密封舱，其特征在于，所述与低泄漏风机输出端连接的管路和原烟气侧管路上分别设有压力传感器，两压力传感器间连接有差压变送器（6），差压变送器（6）与可控制低泄漏风机出口管路阀门的开度或者低泄漏电机频率的控制器连接。
CN2011101913507A 2011-07-09 2011-07-09 回转式气气换热器无泄漏密封系统轴向隔离密封舱 Expired - Fee Related CN102200407B (zh)

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CN2011101913507A CN102200407B (zh) 2011-07-09 2011-07-09 回转式气气换热器无泄漏密封系统轴向隔离密封舱
EP12812033.4A EP2730877B1 (en) 2011-07-09 2012-07-08 Rotary gas-gas heater with axially isolated and sealed compartments in leaktight sealing system
DK12812033.4T DK2730877T3 (en) 2011-07-09 2012-07-08 ROTATING GAS GAS HEATER with axially ISOLATED AND sealed chambers IN A leak SEAL
PCT/CN2012/078325 WO2013007176A1 (zh) 2011-07-09 2012-07-08 具有无泄漏密封系统轴向隔离密封舱的回转式气气换热器

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013007176A1 (zh) * 2011-07-09 2013-01-17 Cheng Aiping 具有无泄漏密封系统轴向隔离密封舱的回转式气气换热器
CN103206720A (zh) * 2013-04-10 2013-07-17 哈尔滨锅炉厂预热器有限责任公司 用于回转式空气预热器的正压密封方法和系统

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108413438B (zh) * 2018-04-17 2024-04-05 杭州新际能源科技有限公司 自清洁卧式管式空气预热器
CN108469036B (zh) * 2018-04-17 2024-04-05 杭州新际能源科技有限公司 防腐防堵自清洁立式管式空气预热器
CN108757944B (zh) * 2018-08-07 2023-12-19 深圳众诚联合能源科技有限公司 一种基于气流运动姿态调整技术的回转空预器密封装置

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2357312Y (zh) * 1998-11-23 2000-01-05 吴同钧 回转式空气预热器的迷宫式密封装置
CN2564973Y (zh) * 2002-09-17 2003-08-06 盛伟 回转式空气预热器的密封装置
CN1598469A (zh) * 2004-09-04 2005-03-23 王卫东 用于回转式空气预热器的轮辐式密封装置
CN2867259Y (zh) * 2005-12-23 2007-02-07 燕守志 再生式空预器的漏风回收装置
CN101071048A (zh) * 2006-05-12 2007-11-14 北京化工大学 带有刷式密封装置的回转式空气预热器
CN101373122A (zh) * 2007-07-24 2009-02-25 巴尔克有限公司 再生式换热器及其径向密封件及用于分离气态介质的方法
CN201731508U (zh) * 2010-07-20 2011-02-02 山东电力研究院 降低回转式空预器漏风的气密封装置
US20110061831A1 (en) * 2009-09-11 2011-03-17 Alstom Technology Ltd System and method for non-contact sensing to minimize leakage between process streams in an air preheater
CN201787595U (zh) * 2010-06-07 2011-04-06 章礼道 回转式空气预热器的曲径迷宫式可调扇形板
CN102095206A (zh) * 2011-02-14 2011-06-15 燕守志 回转式空气预热器的密封回收系统
CN202145114U (zh) * 2011-07-09 2012-02-15 程爱平 回转式气气换热器无泄漏密封系统轴向隔离密封舱

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1066202A (en) * 1964-03-20 1967-04-19 Svenska Rotor Maskiner Ab Rotary regenerative heat exchangers
SU987295A2 (ru) * 1981-10-12 1983-01-07 Предприятие П/Я Р-6193 Регенеративный вращающийс воздухоподогреватель
JPH09229577A (ja) * 1996-02-23 1997-09-05 Abb Kk 回転再生式熱交換器
PT1584869E (pt) * 2004-04-05 2011-07-08 Balcke Duerr Gmbh Regenerador rotativo
CN200965242Y (zh) * 2006-09-12 2007-10-24 赵岫华 全模式三密封空气预热器
US20100251975A1 (en) * 2009-04-01 2010-10-07 Alstom Technology Ltd Economical use of air preheat
CN102200407B (zh) * 2011-07-09 2012-12-05 程爱平 回转式气气换热器无泄漏密封系统轴向隔离密封舱

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2357312Y (zh) * 1998-11-23 2000-01-05 吴同钧 回转式空气预热器的迷宫式密封装置
CN2564973Y (zh) * 2002-09-17 2003-08-06 盛伟 回转式空气预热器的密封装置
CN1598469A (zh) * 2004-09-04 2005-03-23 王卫东 用于回转式空气预热器的轮辐式密封装置
CN2867259Y (zh) * 2005-12-23 2007-02-07 燕守志 再生式空预器的漏风回收装置
CN101071048A (zh) * 2006-05-12 2007-11-14 北京化工大学 带有刷式密封装置的回转式空气预热器
CN101373122A (zh) * 2007-07-24 2009-02-25 巴尔克有限公司 再生式换热器及其径向密封件及用于分离气态介质的方法
US20110061831A1 (en) * 2009-09-11 2011-03-17 Alstom Technology Ltd System and method for non-contact sensing to minimize leakage between process streams in an air preheater
CN201787595U (zh) * 2010-06-07 2011-04-06 章礼道 回转式空气预热器的曲径迷宫式可调扇形板
CN201731508U (zh) * 2010-07-20 2011-02-02 山东电力研究院 降低回转式空预器漏风的气密封装置
CN102095206A (zh) * 2011-02-14 2011-06-15 燕守志 回转式空气预热器的密封回收系统
CN202145114U (zh) * 2011-07-09 2012-02-15 程爱平 回转式气气换热器无泄漏密封系统轴向隔离密封舱

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013007176A1 (zh) * 2011-07-09 2013-01-17 Cheng Aiping 具有无泄漏密封系统轴向隔离密封舱的回转式气气换热器
CN103206720A (zh) * 2013-04-10 2013-07-17 哈尔滨锅炉厂预热器有限责任公司 用于回转式空气预热器的正压密封方法和系统

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