CN102155790B - 一种空气源热泵热水器 - Google Patents

一种空气源热泵热水器 Download PDF

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CN102155790B
CN102155790B CN2011101211434A CN201110121143A CN102155790B CN 102155790 B CN102155790 B CN 102155790B CN 2011101211434 A CN2011101211434 A CN 2011101211434A CN 201110121143 A CN201110121143 A CN 201110121143A CN 102155790 B CN102155790 B CN 102155790B
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heat exchanger
outdoor heat
communicated
water heater
outlet
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CN102155790A (zh
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吴忠南
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Zhejiang Income New Energy Co ltd
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Abstract

本发明公开了一种空气源热泵热水器,包括压缩机、室外换热器、节流阀、室内换热器及四通换向阀,所述室外换热器包括若干组并联设置的室外换热器单元,所述每组室外换热器单元分别通过换向阀与室内换热器出口连通,每组室外换热器单元出口与四通换向阀连通,每组室外换热器单元出口设有感温探头,还包括设在压缩机出气口与四通换向阀间的能量储气罐,所述能量储气罐通过旁通管路与换向阀的旁通进气口及旁通出气口连通,所述旁通管路上设有驱动泵,所述换向阀、感温探头及驱动泵均与控制系统电连接。本发明可以解决换热器回气温度过低而导致换热器结霜过渡,使机组无法正常工作的问题,从而保证系统工作的稳定。

Description

一种空气源热泵热水器
技术领域
本发明涉及一种空气源热泵热水器。
背景技术
冬季室外温度较低时,空气源热泵热水器制热效率会大大降低,特别在环境温度零下20度时,室外换热器回气温度极低,非常容易导致换热器结霜过渡,从而使机组无法正常工作。
发明内容
本发明所要解决的技术问题就是提供一种空气源热泵热水器,可以解决换热器回气温度过低而导致换热器结霜过渡,使机组无法正常工作的问题,从而保证系统工作的稳定。
为解决上述技术问题,本发明采用如下技术方案,一种空气源热泵热水器,包括压缩机、室外换热器、节流阀、室内换热器及四通换向阀,四通换向阀分别与压缩机的出气口、压缩机的回气口、室内换热器的进口、室外换热器的出口连通,其特征在于:所述室外换热器包括若干组并联设置的室外换热器单元,所述每组室外换热器单元分别通过换向阀与室内换热器出口连通,每组室外换热器单元出口与四通换向阀连通,每组室外换热器单元出口处设有感温探头,还包括设在压缩机出气口与四通换向阀间的能量储气罐,所述能量储气罐通过旁通管路与换向阀的旁通进气口及旁通出气口连通,所述旁通管路上设有驱动泵,所述换向阀、感温探头及驱动泵均与控制系统电连接。
优选的,所述换向阀为电磁换向阀。
优选的,所述室外换热器单元为两组。
本发明由于采用上述技术方案,当系统接收到感温探头发出的回气温度过低信号时,系统发出信号由对应的换向阀改变连通状态,同时驱动泵启动,即把原先流向从室内换热器-室外换热器-四通换向阀的状态改变为能量储气罐-室外换热器-能量储气罐的旁通化霜状态,使得回气温度不会过低,从而使减轻室外室外换热器的结霜现象,在某个或其中几个室外换热器结霜严重时,可以单独先进行独立化霜,不需整个系统停止运行,从而保证系统正常工作。
附图说明
下面结合附图和具体实施方式对本发明作进一步详细的说明。
图1为本发明一种空气源热泵热水器的结构示意图;
图2为本发明换向阀的结构示意图。
具体实施方式
如图1和图2所示,为本发明一种空气源热泵热水器,包括压缩机1、室外换热器、节流阀3、室内换热器4及四通换向阀5,四通换向阀5分别与压缩机1的出气口、压缩机的回气口、室内换热器4的进口、室外换热器的出口连通,所述室外换热器包括若干组并联设置的室外换热器单元2,所述每组室外换热器单元2分别通过换向阀6与室内换热器4出口连通,每组室外换热器单元出口与四通换向阀连通,每组室外换热器单元2出口处设有感温探头7,还包括设在压缩机出气口与四通换向阀间的能量储气罐8,所述能量储气罐通过管路与换向阀6的旁通进气口61及旁通出气口62连通,所述旁通管路上设有驱动泵60,所述换向阀6、感温探头7及驱动泵60均与控制系统电连接,所述换向阀为电磁换向阀,本实施例中所述室外换热器单元为两组。图中91为干燥过滤器,92为汽液分离器。如图2,为本发明的换向阀,包括主进气口63、主出气口64、室外换热器进口65、室外换热器出口66、旁通进气口61、旁通出气口62,主进气口63与室内换热器出口连通,主出气口与四通换向阀5连通,正常工作时,主进气口连通室外换热器进口,室外换热器出口连通四通换向阀;当系统接收到感温探头发出的回气温度过低信号时,系统发出信号由对应的换向阀改变连通状态,即把正常工作时的连通状态改为旁通进气口与室外换热器进口连通,原先的连通状态关闭,室外换热器出口与旁通出气口连通,与能量储气罐、驱动泵组成旁通化霜循环。上述换向阀的连通功能为本领域常规技术,在此不作详述。

Claims (3)

1.一种空气源热泵热水器,包括压缩机、室外换热器、节流阀、室内换热器及四通换向阀,四通换向阀分别与压缩机的出气口、压缩机的回气口、室内换热器的进口、室外换热器的出口连通,其特征在于:所述室外换热器包括若干组并联设置的室外换热器单元,所述每组室外换热器单元分别通过换向阀与室内换热器出口连通,每组室外换热器单元出口与四通换向阀连通,每组室外换热器单元出口处设有感温探头,还包括设在压缩机出气口与四通换向阀间的能量储气罐,所述能量储气罐通过旁通管路与换向阀的旁通进气口及旁通出气口连通,所述旁通管路上设有驱动泵,所述换向阀、感温探头及驱动泵均与控制系统电连接。
2.根据权利要求1所述的空气源热泵热水器,其特征在于:所述换向阀为电磁换向阀。
3.根据权利要求1或2所述的空气源热泵热水器,其特征在于:所述室外换热器单元为两组。
CN2011101211434A 2011-05-11 2011-05-11 一种空气源热泵热水器 Expired - Fee Related CN102155790B (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1321727B1 (en) * 2001-12-20 2007-04-25 LG Electronics Inc. Heat pump type air conditioner
JP2008138921A (ja) * 2006-11-30 2008-06-19 Mitsubishi Electric Corp 空気調和装置
CN201373636Y (zh) * 2008-12-30 2009-12-30 吴忠南 一种空调系统改良结构
CN202032800U (zh) * 2011-05-11 2011-11-09 吴忠南 一种空气源热泵热水器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1321727B1 (en) * 2001-12-20 2007-04-25 LG Electronics Inc. Heat pump type air conditioner
JP2008138921A (ja) * 2006-11-30 2008-06-19 Mitsubishi Electric Corp 空気調和装置
CN201373636Y (zh) * 2008-12-30 2009-12-30 吴忠南 一种空调系统改良结构
CN202032800U (zh) * 2011-05-11 2011-11-09 吴忠南 一种空气源热泵热水器

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