CN109995232A - 一种适用于电解水制氢的调制电源 - Google Patents

一种适用于电解水制氢的调制电源 Download PDF

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Publication number
CN109995232A
CN109995232A CN201910358503.9A CN201910358503A CN109995232A CN 109995232 A CN109995232 A CN 109995232A CN 201910358503 A CN201910358503 A CN 201910358503A CN 109995232 A CN109995232 A CN 109995232A
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power source
water electrolysis
hydrogen production
modulation
electrolysis hydrogen
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Inventor
臧文平
高林
吕绍勤
陈学谦
段佳琪
吕海龙
杨连承
张志芳
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TIANJIN JINMEI CARBON MATERIAL SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
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TIANJIN JINMEI CARBON MATERIAL SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
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Priority to CN201910358503.9A priority Critical patent/CN109995232A/zh
Publication of CN109995232A publication Critical patent/CN109995232A/zh
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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00Electrolytic production of inorganic compounds or non-metals
    • C25B1/01Products
    • C25B1/02Hydrogen or oxygen
    • C25B1/04Hydrogen or oxygen by electrolysis of water
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/60Constructional parts of cells
    • C25B9/65Means for supplying current; Electrode connections; Electric inter-cell connections
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00Control of flow
    • G05D7/06Control of flow characterised by the use of electric means
    • G05D7/0617Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/02Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • 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
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/36Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

本发明提供一种适用于电解水制氢的调制电源,其特征在于:包括恒压直流电源和调制模块。本发明的调制电源将恒压直流电调制为具有一定占空比的直流电,用于电解水制氢时,可大幅减少电极板的发热损耗,降低气泡效应对电极板有效电解面积的影响,从而提高电流效率。

Description

一种适用于电解水制氢的调制电源
技术领域
本发明涉及一种调制电源,具体涉及一种适用于电解水制氢的调制电源。
背景技术
电解水制氢的电流效率不高,通常在50%以下,原因是交流电整流后通常是正弦波脉冲直流电,直接用于电解水制氢时,极板上的电流密度会发生周期性的增大和减小,导致一部分电能用于制氢,一部分电能发热损耗。同时,持续的电流加载导致产生的大量微气泡附着在极板表面,其中一些气泡不能立即脱离极板,导致电极板的有效面积减小,加大了反应过电位,进而导致电流效率不高。采用普通直流电可以大幅减少电能的发热损耗,而将直流电以一定的频率和时间进行关闭,有利于降低气泡效应对极板有效电解面积的影响,从而提高电流效率。
发明内容
本发明的目的在于:提供一种适用于电解水制氢的调制电源,将恒压直流电调制为具有一定占空比的直流电,大幅减少制氢时电极板的发热损耗,降低气泡效应对极板有效电解面积的影响,从而提高电流效率。
为实现上述目的,本发明的技术方案是:
一种适用于电解水制氢的调制电源,其特征在于:包括恒压直流电源和调制模块。其中:调制模块包括PLC控制器和固态继电器。
所述恒压直流电源输出的是电压恒定的直流电。
所述PLC控制器可控制所述固态继电器以一定的频率断开一定的时长,从而将恒压直流电调制为具有一定占空比的恒压直流电。
所述调制模块还包含一个压力传感器或流量传感器,可将氢气的流量信息或压力信息传输给所述PLC控制器。
所述调制电源为电解水制氢系统提供稳定的、具有一定占空比的直流电。
由于采用了上述方案,本发明具有以下特点:
本发明的调制电源将恒压直流电调制为具有一定占空比的直流电,用于电解水制氢时,可大幅减少电极板的发热损耗,降低气泡效应对电极板有效电解面积的影响,从而提高电流效率。
附图说明
图1是本发明的适用于电解水制氢的调制电源的系统示意图。
具体实施方式
下面结合附图1及实施例对本发明所涉及的适用于电解水制氢的调制电源进行详细阐述。
①如图1所示,适用于电解水制氢的调制电源包括恒压直流电源1、调制模块2。
②调制模块2包括PLC控制器21、固态继电器22和流量传感器23。
③恒压直流电源1输出电压恒定的直流电至调制模块2。
④流量传感器23将流量信息传输至PLC控制器21。
⑤PLC控制器21将流量信息处理后,控制固态继电器22以一定的频率断开一定的时长,从而将恒压直流电调制为具有一定占空比的恒压直流电。
⑥PLC控制器21根据流量信息不断控制固态继电器22调节恒压直流电的占空比,直到制氢系统3的流量输出最大。
以上说明对本发明而言只是说明性的,而非限制性的。本领域技术人员理解,在不脱离权利要求所限定的精神和范围的情况下,可作出许多修改、变化或等效,但都将落入本发明专利的保护范围之内。

Claims (4)

1.一种适用于电解水制氢的调制电源,其特征在于:包括恒压直流电源和调制模块,
其中:调制模块包括PLC控制器和固态继电器。
2.根据权利要求1所述的适用于电解水制氢的调制电源,其特征在于:所述恒压直流电源输出的是电压恒定的直流电。
3.根据权利要求1所述的适用于电解水制氢的调制电源,其特征在于:所述PLC控制器可控制所述固态继电器以一定的频率断开一定的时长,从而将恒压直流电调制为具有一定占空比的恒压直流电。
4.根据权利要求1所述的适用于电解水制氢的调制电源,其特征在于:所述调制模块还包含一个压力传感器或流量传感器,可将氢气的流量信息或压力信息传输给所述PLC控制器。
CN201910358503.9A 2019-04-30 2019-04-30 一种适用于电解水制氢的调制电源 Pending CN109995232A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114351163A (zh) * 2021-12-20 2022-04-15 浙江大学 一种电解制氢电压最优占空比的搜寻方法
CN115679376A (zh) * 2023-01-05 2023-02-03 长春绿动氢能科技有限公司 电解水制氢系统中的管口开闭状态控制方法及装置

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CN108531937A (zh) * 2018-06-19 2018-09-14 百特环保科技(烟台)有限公司 一种电解臭氧发生器缓升缓降的供电方法及供电装置
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CN101318725A (zh) * 2007-06-06 2008-12-10 张华� 恒压电解制水装置及方法
CN102208303A (zh) * 2010-03-30 2011-10-05 株式会社山武 继电器驱动电路
CN201797448U (zh) * 2010-09-25 2011-04-13 哈尔滨工业大学 基于全plc控制的高压脉冲电源
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114351163A (zh) * 2021-12-20 2022-04-15 浙江大学 一种电解制氢电压最优占空比的搜寻方法
CN115679376A (zh) * 2023-01-05 2023-02-03 长春绿动氢能科技有限公司 电解水制氢系统中的管口开闭状态控制方法及装置

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