CN1188217A - 正向循环热泵 - Google Patents

正向循环热泵 Download PDF

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CN1188217A
CN1188217A CN97105032A CN97105032A CN1188217A CN 1188217 A CN1188217 A CN 1188217A CN 97105032 A CN97105032 A CN 97105032A CN 97105032 A CN97105032 A CN 97105032A CN 1188217 A CN1188217 A CN 1188217A
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楼世竹
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Abstract

本发明涉及一种空调***中的核心设备,特别是正向循环热泵,其压缩机的出口端通过换热器、节流部件与风机盘管的进口端相连,电磁阀旁接于节流部件的两端,压缩机的进口端通过换热器、节流部件与风机盘管的出口端相连,电磁阀并接于节流部件的进口端与换热器的一次侧出口端之间。其具有快速除霜,此时压缩机满负荷运行,正常供热不影响室内环境,并能全年生产热水、对室外环境温度适应性强等优点,同时节能效果显著。

Description

正向循环热泵
本发明涉及一种空调***中的核心设备,特别是正向循环热泵,是用于商住办公楼、高级公寓、别墅的理想空调、热水供应设备。
以往的热泵是通过四通阀的转向作用,使制冷介质在***中正向或逆向流动,来实现供冷或供热的功能。然而,也正因为在冬季供热时仍利用上述原理进行融霜,因此在融霜时对室内暂时供冷、对室外盘管供热,以融比室外盘管上的结霜,为了尽量减少融霜时对室内环境的不良影响,往往使压缩机在低功率状态下运行,以降低制冷介质的循环量。这种融霜方式不仅严重影响室内的热环境,而且因其融霜时介质流量小,导致融霜时间长,在客观上就更加剧了对室内热环境的影响程度,特别是当室外温度低于零度时,频繁融霜,造成室内热环境恶化,所以通常被认为长江以北地区不宜使用热泵。基于上述原因,近年来有人在现有热泵的压缩机进出口之间增加一个毛细管旁通管路,使融霜方式有所改进,在融霜时能保持对室内1/6的供热量,尽管如此,对室内环境的影响电是明显的,其在融霜时压缩机仍是在低于正常功率状态下运行,因此融霜时间也较长。同时由于四通阀是以往热泵的关键部件,因其结构复杂、运行部件多,成为设备的易损点,往往导致设备故障率高,费工耗时。
本发明的目的在于提供一种结构简单、紧凑合理、故障率低、快速除霜过程中向室内正常供热,不影响室内环境、对室外环境温度适应性强、可全年供应生活热水并明显节能的正向循环热泵。
本发明的目的是通过如下的技术方案来实现的,它是由风机盘管和压缩机组成,其压缩机的出口端通过换热器、节流部件与风机盘管的进口端相连,电磁阀旁接于节流部件的两端,压缩机进口端通过换热器、节流部件与风机盘管的出口端相连,电磁阀并接于节流部件的进口端与换热器的一次侧出口端之间。
所述的换热器的二次侧还设有水循环管路,其换热器的二次侧通过水管、阀门与热换器的二次侧、贮热水箱相连,其上设有供水管;换热器的另一个二次侧通过水管、管道泵、阀门、管道泵与换热器的另一个二次侧及贮热水箱的下部相连,回水管设于管道泵与阀门之间的管路上,贮热水箱上设有供热水管。
本发明与现有技术相比,由于利用电磁阀的旁通作用,来控制节流部件的工作与否实现室外风机盘管的蒸发与冷凝功能的转换,制冷介质在供冷和供热工况中均处于正向循环,依靠设备外贮热水箱或设备所连接供热***内贮存的热量蒸发蒸发器盘管内的制冷介质实现高温蒸汽融霜,并经试验证明有除霜速度快,在其除霜过程中压缩机满负荷运行,正常供热不影响室内环境、能够全年生产热水,尤其是夏季回收冷凝废热、既节能又利于环境、较分体空调节能40%左右,并通过不同的制冷介质和压力的选择可适用于任何室外环境温度。同时结构简单、紧凑、运行可靠、故障率低。
图是本发明的主视结构示意图。
本发明的实施例结合附图加以详细描述:其压缩机10的出口端通过换热器3、节流部件4与风机盘管5的进口端相连,电磁阀2旁接于节流部件4的两端,压缩机10进口端通过换热器7、节流部件6与风机盘管5的出口端相连,电磁阀9并接于节流部件6的进口端与换热器7的一次侧出口端之间,所述的换热器3、7的二次侧还设有水循环管路,其换热器7的二次侧通过水管、阀门13与热换器3的二次侧、贮热水箱1相连,其上设有供水管11;换热器7的另一个二次侧通过水管、管道泵8、阀门14、管道泵15与换热器3的另一个二次侧及贮热水箱1的下部相连,回水管12设于管道泵8与阀门14之间的管路上,贮热水箱1上设有供热水管16。所述的节流部件4、6是毛细管或膨胀阀。
本发明使用时是通过旁通电磁阀2、9来控制节流部件4、6的工作,旁通电磁阀通过开与关来控制节流部件的工作与否。换热器3、7的一次侧为制冷介质,二次侧为水。其在供冷工配时,水***阀门13、14关闭,管道泵15用于循环生活用水,管道泵8用于冷冻水的循环,电磁阀2开、电磁阀9关,节流部件6工作,换热器7成为制冷盘管,换热器3成为供热盘管,可用来回收冷凝废热,加热生活用水;当供热工况时,水***阀门13、14开,管道泵8停,管道泵15运行用于室内供热水和贮水箱1内的水循环加热,电磁阀2关,电磁阀9开,此时节流部件4工作,换热器3成为供热盘管,风机盘管5成为蒸发器;在融霜工况时,电磁阀2开,电磁阀9关,换热器3、风机盘管5均为供热盘管,风机停转,同时向室内供热和融霜,换热器7为蒸发器,依靠***内的热量蒸发换热器7盘管内的制冷介质。此时压缩机10仍以正常供热时的功率运行,在此过程中水***中阀门13、14开,管道泵8停,管道泵15运行,同时给室内供热和换热器7供热,以蒸发制冷介质。

Claims (2)

1.一种正向循环热泵,是由风机盘管5和压缩机10组成,其压缩机10的出口端通过换热器3、节流部件4与风机盘管5的进口端相连,电磁阀2旁接于节流部件4的两端,压缩机10进口端通过换热器7、节流部件6与风机盘管5的出口端相连,电磁阀9并接于节流部件6的进口端与换热器7的一次侧出口端之间。
2.根据权利要求1所述的热泵,其特征在于所述的换热器3、7的二次侧还设有水循环管路,其换热器7的二次侧通过水管、阀门13与热换器3的二次侧、贮热水箱1相连,其上设有供水管11;换热器7的另一个二次侧通过水管、管道泵8、阀门14、管道泵15与换热器3的另一个二次侧及贮热水箱1的下部相连,回水管12设于管道泵8与阀门14之间的管路上,贮热水箱18上设有供热水管16。
CN97105032A 1997-01-16 1997-01-16 正向循环热泵 Pending CN1188217A (zh)

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CN100485290C (zh) * 2000-09-01 2009-05-06 辛文特公司 蒸汽压缩机***的除霜方法及装置
CN1707197B (zh) * 2004-04-14 2010-04-28 松下电器产业株式会社 热泵热水供应装置
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