CN102635944A - 超高压电热储能装置 - Google Patents

超高压电热储能装置 Download PDF

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CN102635944A
CN102635944A CN2012101591230A CN201210159123A CN102635944A CN 102635944 A CN102635944 A CN 102635944A CN 2012101591230 A CN2012101591230 A CN 2012101591230A CN 201210159123 A CN201210159123 A CN 201210159123A CN 102635944 A CN102635944 A CN 102635944A
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energy storage
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CN102635944B (zh
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朱建新
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SHENYANG SIGNJAMMER Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
    • F24H7/002—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release using electrical energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
    • F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
    • F24H7/0208—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid using electrical energy supply
    • F24H7/0216—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid using electrical energy supply the transfer fluid being air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
    • F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
    • F24H7/04—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid
    • F24H7/0408—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply
    • F24H7/0416—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply the transfer fluid being air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • 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
    • F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/10—Heat storage materials, e.g. phase change materials or static water enclosed in a space
    • 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

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  • Thermal Sciences (AREA)
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  • Chemical & Material Sciences (AREA)
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  • Central Heating Systems (AREA)

Abstract

本发明涉及一种超高压电热储能装置，包括分体储能体部分、热交换器部分、外保温层部分，分体热储能体是由隔离层、安全间隙、蓄热模块、电加热丝、散热对流腔、绝缘风管、电源套管、回流风道、电动机、电源引线首端、电源引线尾端、外保温层组成；分体电热储能体是超高压电热储能装置的一个部件，组成超高压电热储能装置需要3（n+1）个分体热储能体，之间用隔离层隔离，n个分体热储能体内的电加热丝引出端首尾连接组成串连结构；本装置中的热储能体分3相供电，每相n个分体热储能体串连，解决了独体热储能体端电压过高的问题。其配置灵活，适于10KV以上各种电压等级，最高可做500KV以上工作电压的蓄热装置。

Description

超高压电热储能装置
技术领域
 本发明涉及一种超高压电热储能装置，尤其涉及一种由10-500千伏超高压电网直接供电、通过热储能体中的电热丝进行加热、并通过储能模块充分利用低谷电及弃风电进行蓄热、为热能用户供热的装置。
背景技术
 以往高压电热储能装置采用10千伏电压等级供电时，安装在独立的三个绝缘底座基础之上的由电加热丝与蓄热模块按矩形尺寸分层混合排列构成的独体热储能体每相交流供电回路一个，按星形接线方法供电。在工作状态，排列在每个独体热储能体内最底层的电加热丝与最顶层的电加热丝之间电压差小于6千伏；若工作电压大于20千伏的电热储能装置采用上述结构安装热储能体时，排列在独体热储能体内最底层电加热丝与最顶层电加热丝之间的工作电压差已大于10千伏，暴露在热对流空气中的电加热丝会因热对流空气中的杂质或蓄热模块温度升高使热储能体绝缘耐受强度低于10千伏，甚至出现热储能体内电加热丝层间放电现象影响高压电热储能装置的正常工作。因此，需要设计一种新型结构降低20千伏以上电压等级热储能体的端电压，使高压电热储能装置安全稳定地工作，满足用户需求。
发明内容
本发明针对上述现有技术存在的问题而提供一种用3(n+1)个安装在独立的绝缘底座基础之上的由电加热丝与蓄热模块按矩形尺寸分层混合排列的分体热储能体构成的超高压电热储能装置。每相设(n+1)个分体热储能体，n个分体热储能体串连构成每相交流供电回路；每个分体热储能体对地绝缘电压满足同电压等级电热储能装置对地绝缘电压要求；每个分体热储能体内电加热丝引出线两端电压差等于超高压电热储能装置额定工作电压的1/（n*                                               
Figure 2012101591230100002DEST_PATH_IMAGE002
），消除了独体热储能体因内电加热丝引出线两端电压过高而产生的电加热丝间放电现象；3n个分体热储能体电功率之和等于该超高压电热储能装置额定功率；第（n+1）个分体热储能体为备份热储能体便于检修。
本发明的技术方案如下：
一种超高压电热储能装置，包括分体储能体部分、热交换器部分、外保温层部分，其特征在于：分体热储能体是由隔离层、安全间隙、蓄热模块、电加热丝、散热对流腔、绝缘风管、电源套管、回流风道、电动机、电源引出线首端、电源引出线尾端、外保温层组成；分体电热储能体是超高压电热储能装置的一个部件，组成超高压电热储能装置需要3（n+1）个分体热储能体，之间用隔离层隔离，n个分体热储能体内的电加热丝引出端首尾连接组成串连结构；蓄热模块是分体热储能体的热存储单元，将电加热丝的热能存储起来，还是支撑电加热丝的骨架，在每层还留有散热孔。
所述的分体热储能体可以设计成各种满足需要的几何体，除隔离层、外保温层、风扇、电机外均安装在绝缘强度大于高压电热储能装置额定输入工作电压绝缘要求的基础之上。
所述的隔离层由能在工作温度范围内有稳定结构的金属材料、蓄热材料或绝缘材料构成。
所述的热交换器是管壳式气水交换器，分体热储能体释放的热空气在风扇的驱动下进入热交换器向管壳内的水释放热能，根据用户需求热交换器可输出热水、蒸汽、热空气，完成热交换后的低温空气经回流风道完成热空气回路循环。
本发明的优点如下：
本发明超高压电热储能装置中的热储能体分成n个分体热储能体串连，解决了独体热储能体端电压过高的问题。其配置灵活，适于10千伏以上各种电压等级，最高可做500千伏以上工作电压的超高压电热储能装置。只要每个分体热储能体内电加热丝引出线两端电压差小于热储能体的最小击穿电压，使安装在分体热储能体内的电热丝稳定工作，超高压电热储能装置就可以在各种电压条件下工作。
附图说明
图1为本发明超高压电热储能装置分体热储能体结构图。
图2为本发明超高压电热储能装置分体热储能体实施例结构示意图。
图3为本发明超高压电储热储能装置分体热储能体内加热丝的接线图。
下面结合附图和实施例详细描述本发明。
如图1所示，超高压电热储能装置是由分体储能体部分、热交换器部分和外保温层部分组成，分体热储能体是由隔离层1、安全间隙2、蓄热模块3、电加热丝4、散热对流腔5、风扇6、绝缘网管7、电源套管8、回流风道9、电动机10、电源引出线首端11、电源引出线尾端12和外保温层13组成。
如图2所示，分体电热储能体是超高压电热储能装置的一个部件，组成超高压电热储能装置需要3（n+1）个分体热储能体，之间用隔离层隔离，n个分体热储能体内的电加热丝引出端首尾连接组成串连结构，其外保温层13，交换器14。
如图3所示，为分体热储能体内加热丝的接线图，其中，A1、A2、A3…An为A相电源输入回路串连接线示意图；An+1为A相备份分体热储能体组件；B1、B2、B3…Bn为B相电源输入回路串连接线示意图；Bn+1为B相备份分体热储能体组件；C1、C2、C3…Cn为C相电源输入回路串连接线示意图；Cn+1为C相备份分体热储能体组件。

Claims (4)

1. 一种超高压电热储能装置，包括分体储能体部分、热交换器部分、外保温层部分，其特征在于：分体热储能体是由隔离层、安全间隙、蓄热模块、电加热丝、散热对流腔、绝缘风管、电源套管、回流风道、电动机、电源引线首端、电源引线尾端、外保温层组成；分体电热储能体是超高压电热储能装置的一个部件，组成超高压电热储能装置需要3（n+1）个分体热储能体，之间用隔离层隔离，n个分体热储能体内的电加热丝引出端首尾连接组成串连结构；蓄热模块是分体热储能体的热存储单元，将电加热丝的热能存储起来，还是支撑电加热丝的骨架，在每层还留有散热孔。
2.根据权利要求1所述的一种超高压电热储能装置，其特征在于：所述的分体热储能体设计成各种满足需要的几何体，除隔离层、外保温层、风扇、电机外均安装在绝缘强度大于超高压电热储能装置额定输入工作电压绝缘要求的基础之上。
3.根据权利要求1所述的一种超高压电热储能装置，其特征在于：所述的隔离层由能在工作温度范围内有稳定结构的金属材料、蓄热材料或绝缘材料构成。
4.根据权利要求1所述的一种超高压电热储能装置，其特征在于：所述的热交换器是管壳式气水交换器，分体热储能体释放的热空气在风扇的驱动下进入热交换器向管壳内的水释放热能，根据用户需求热交换器可输出热水、蒸汽、热空气，完成热交换后的低温空气经回流风道完成热空气回路循环。
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WO2013174162A1 (zh) * 2012-05-22 2013-11-28 沈阳世杰电器有限公司 超高压电热储能装置
CN103743098A (zh) * 2014-01-15 2014-04-23 朱建新 高效固体电蓄热锅炉
CN103808151A (zh) * 2014-02-25 2014-05-21 朱建新 高压电阻炉蓄热装置
CN103868235A (zh) * 2014-03-12 2014-06-18 朱建新 组合式油炉
CN104728900A (zh) * 2015-04-10 2015-06-24 朱建新 分布式高压电热力网蓄热系统
CN105408695A (zh) * 2013-07-15 2016-03-16 扬·霍卢布 储能系统
CN105806117A (zh) * 2016-04-22 2016-07-27 朱建新 一种固体电蓄热装置
CN107940758A (zh) * 2017-10-19 2018-04-20 河北建筑工程学院 一种空气分级加热控温的固体电蓄热锅炉装置
CN113865401A (zh) * 2021-11-23 2021-12-31 浙江大学 储热系统及储热方法

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