CN1755260A - 多空调系统及其管线连接查找方法 - Google Patents
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Abstract
一种多空调系统的管线连接查找方法,所述多空调系统包括一个室外单元,与该室外单元相连的多个室内单元,连接在室外单元与各室内单元之间的多条制冷剂管线,以及安装在各制冷剂管线上的多个制冷剂控制阀门。所述管线连接查找方法包括如下步骤:测量室外温度;以及根据室外温度选择多空调系统的工作方式,并实行管线连接查找操作。
Description
本申请要求2004.10.2向韩国工业产权局提交的韩国专利申请No.2004-78565的利益,本文将其公开内容引为参考文献。
技术领域
本发明涉及多空调系统及其管线连接查找方法,具体地说,涉及一种多空调系统和一种能够查找与多个制冷剂控制阀门相连的多个室内单元,以控制提供给各个室内单元的制冷剂流率(flow rate)的方法。
背景技术
一般地说,惯常的多空调系统包括:一个室外单元;与该室外单元并联连接的多个室内单元;连接在室外单元与各室内单元之间的连接管线;电源缆线,以及制冷剂管线。所述室外电源包括压缩机、室外热交换器和关于各制冷剂安装的多个电极操纵阀。韩国未审专利公开No.1998-025714记载了这种普通多空调系统的举例。
在原来安装具有上述结构的普通多空调系统时,工程师把各室内单元通过连接管线、电源缆线及制冷剂管线分别连到室外单元。这之后,工程师测量各室内单元的温度差,同时,在致冷工作期间,开启和关闭电机操纵阀门,以查找与各制冷剂相连的室内单元(或关闭电机操纵阀门)。
然而,在这种普通的多空调系统中实行致冷工作,甚至会是在实行致冷操作不当的条件下去实现管线连查找操作,结果,可能会使系统受到损害。特别是在室外温度较低情况下致冷工作期间进行管线连接查找操作时,室外热交换器中浓缩的制冷剂的量会增加。结果,被浓缩的制冷剂不能通过室内热交换器充分地蒸发,由此制冷剂以液态形式被引入到压缩机内。相应地,会使压缩机受到损害。
发明内容
于是,本发明的一个方面提供一种多空调系统及其管线连接查找方法,当实行管线连接查找操作时,能够根据室外温度选择操作方式。
按照本发明的一个方面,提供一种多空调系统的管线连接查找方法,所述多空调系统包括一个室外单元,与该室外单元相连的多个室内单元,连接在室外单元与各室内单元之间的多条制冷剂管线,以及安装在各制冷剂管线上的多个制冷剂控制阀门,其中,所述方法包括如下步骤:测量室外温度;根据室外温度选择多空调系统的工作方式,并实行管线连接查找操作。
在接下去的本说明书部分将会述及本发明的其它方面和/或优点,一部分将会从这些说明而愈为显见,或者可以通过实践本发明而被理解。
附图说明
从以下结合附图对实施例的描述,将使本发明的这些和/或其它方面及优点变得愈为清晰和更容易理解,其中:
图1是表示采用本发明一种实施例管线连接查找方法之多空调系统的制冷剂回路图;
图2是表示图1所示多空调系统结构的方框图;
图3是表示在实行本发明多空调系统的管线连接查找操作时开启和关闭室内电机操作阀门的曲线;
图4是说明本发明多空调系统管线连接查找操作的流程图。
具体实施方式
以下参照附图详细说明本发明的优选实施例。下面的实施例用来通过参照附图说明本发明。
图1是表示采用本发明一种实施例管线连接查找方法之多空调系统的制冷剂回路图;而图2是表示图1所示多空调系统结构的方框图。
如图1和2所示,所述多空调系统包括:室外单元10;与室外单元10相连的第一至第四室内单元30,40,50和60;具有第一至第四电机操作阀门71,72,73和74的分配器70。
室外单元10包括:压缩机11,用以压缩制冷剂;四通阀12,用以导引自压缩机11排放的制冷剂;室外热交换器13,用以在被压缩机11压缩然后再提供给该室外热交换器13的制冷剂与外部空气之间实行热交换;室外风扇14,用以使空气被强制流到室外热交换器13;以及室外风扇电机15。
室外单元10还包括:室外温度传感器16,用以检测室外温度;收集器17,用以将气态制冷剂送至压缩机11;室外单元微处理器18,用以控制室外单元10的各部件,并与室内单元微处理器36,46,56和66进行联系,这将在后面另有详细描述;以及显示部件19,用以显示多空调系统的状态。
第一至第四室内单元30,40,50和60包括:第一至第四室内热交换器31,41,51和61,用以与被引入室内的空气进行热交换;第一至第四室内风扇32,42,52和62,用以将室内的空气引入到第一至第四室内单元30,40,50和60中,导引所引入的空气通过第一至第四室内热交换器31,41,51和61,并排放来自第一至第四室内单元30,40,50和60的空气;以及第一至第四室内风扇电机33,43,53和63,分别旋转所述第一至第四室内风扇32,42,52和62。
第一至第四室内单元30,40,50和60还包括:安装在与第一至第四室内热交换器31,41,51和61相连的管线上的第一至第四入口温度传感器34,44,54和64,(在实行致冷操作时)通过所述第一至第四室内热交换器31,41,51和61引入制冷剂;以及第一至第四室内单元微处理器36,46,56和66,用以控制第一至第四室内单元30,40,50和60的各部件,并分别实现与室外单元微处理器18的数据联系。
安装在分配器70中的第一至第四电机操纵阀门71,72,73和74经各制冷剂管线与第一至第四室内单元30,40,50和60相连,用以控制分别提供给第一至第四室内单元30,40,50和60的制冷剂流率。
以下参照图3和4描述本发明多空调系统的管线连接查找方法。
在工程师把分配器70的电机操纵阀门71,72,73和74连接到各室内单元30,40,50和60,并利用测试开关(未示出)输入管线连接查找指令时,室外温度传感器16测量室外温度(80),以确定所测得的室外温度是否高于或等于一基准温度(82)。当室外温度高于或等于所述基准温度时,实行致冷操作(84)。当室外温度低于所述时基准温度时,实行致热操作(85)。根据工作方式,适当控制压缩机11、室外风扇15和第一至第四室内风扇32,42,52和62的工作情况,并使第一至第四电机操纵阀门71,72,73和74保持在预定的初始开启程度(86)。
继而由第一至第四入口温度传感器34,44,54和64分别测量各室内单元入口处的温度,并储存所测得的温度(88)。与此同时,(根据致冷操作)使各室内单元入口处的温度处于各室内热交换器入口处的温度。
如图3所示,在测量各室内单元入口处的温度之后,关闭第一电机操纵阀门71,同时保持其它电机操纵阀门72,73和74的开启程度不变(90和92)。在预定的时间周期之后,再测量各室内单元入口处的温度(94)。最好将所述预定的时间周期设定得充分显现温度的变化是取决于第一电机操纵阀门71开启程度变化的。
继而,计算关闭第一电机操纵阀门71之前各室内单元入口处的温度与关闭第一电机操纵阀门71之后各室内单元入口处的温度之间的差,以确定是否存在有的室内单元,它的关闭第一电机操纵阀门71之前该室内单元入口处的温度与关闭第一电机操纵阀门71之后该室内单元入口处的温度之间的差大于一个基准值(96)。做这样的确认,为的是防止错误地认为与第一电机操纵阀门71相连的室内单元,其入口处的温度因除关闭第一电机操纵阀门71之外的其它原因而改变。
所述基准值可能会随着系统而变。在致热操作中,不会随着电机操纵阀门被关闭,而把高温制冷剂提供给室内热交换器,因此,该室内单元入口处的温度逐渐降低。在致冷操作中,不会随着电机操纵阀门被关闭,把低温制冷剂提供给室内热交换器,因此,该室内单元入口处的温度逐渐增高。因此,在致热操作期间,当实行管线连接查找操作时,确定随着电机操纵阀门被关闭该室内单元入口处的温度是否已经降低到低过所述基准值,而在致冷操作期间,当实行管线连接查找操作时,确定随着电机操纵阀门被关闭该室内单元入口处的温度是否已经增高到高过所述基准值。
当在操作步骤96确定不存在有室内单元,关闭第一电机操纵阀门71之前该室内单元入口处的温度与关闭第一电机操纵阀门71之后该室内单元入口处的温度之间的差大于所述基准值时,则确定第一电机操纵阀门71与相应的室内单元之间的管线连接是不正常的,并因此而在显示单元19上显示不正常管线连接(106)。另一方面,当在操作步骤96确定存在有室内单元,关闭第一电机操纵阀门71之前该室内单元入口处的温度与关闭第一电机操纵阀门71之后该室内单元入口处的温度之间的差大于所述基准值时,则确定该室内单元入口处的温度是否是所有室内单元各入口处的温度中间最高者或为最低者,(在致热操作中,确认该室内单元入口处的温度在所有室内单元各入口处的温度中间是否为最低,而在致冷操作中,确认该室内单元入口处的温度在所有室内单元各入口处的温度中间是否为最高)(98)。
如果满足操作步骤98的条件,则确认该室内单元与第一电机操纵阀门71相连(100)。如果未满足操作步骤98的条件,则实行操作步骤106。
继而,确定是否已经完成对所有电机操纵阀门71,72,73和74的管线连接查找操作(102)。如果确认已经完成对所有电机操纵阀门71,72,73和74的管线连接查找操作,则有如图3B,3C和3D所示的那样,实行操作步骤104,连续关闭第二至第四电机操纵阀门,并完成管线连接查找操作。
正如从上面所述明显看到的,当实行管线连接查找操作时,根据室外温度适当地设定所述系统的工作方式。因此,本发明具有防止在不适宜的工作方式下进行管线连接查找操作的效果,从而防止系统受到损害。
虽然已经表示和描述了本发明的实施例,但熟悉本领域的人应能理解,可对这些实施例进行改变,而不致脱离本发明的原则和精髓,它的范围被限定在所附各权利要求及它们的等价物中。
Claims (10)
1.一种多空调系统的管线连接查找方法,所述多空调系统包括一个室外单元,与该室外单元相连的多个室内单元,连接在室外单元与各室内单元之间的多条制冷剂管线,以及安装在各制冷剂管线上的多个制冷剂控制阀门,其中,所述方法包括如下步骤:
测量室外温度;以及
根据室外温度选择多空调系统的工作方式,并实行管线连接查找操作。
2.如权利要求1所述的方法,其中,选择工作方式,在所述室外温度高于基准温度时,实行致冷操作,而在所述室外温度低于基准温度时,实行致热操作。
3.如权利要求2所述的方法,其中,所述管线连接查找操作包括如下步骤:
在所述空调系统工作的同时开启各制冷剂控制阀门,并关闭各制冷剂控制阀门之一;
测量各室内单元的温度变化图样;以及
确认温度变化图样,显示与被关闭的制冷剂控制阀门相关的室内单元,从而找出与该制冷剂控制阀门相连的室内单元。
4.如权利要求3所述的方法,其中,表示关于被关闭的制冷剂控制阀门之温度变化图样的室内单元是这样的室内单元,由于关闭制冷剂控制阀门,它的温度变化高于基准值。
5.如权利要求4所述的方法,其中,表示关于被关闭的制冷剂控制阀门之温度变化图样的室内单元是这样的室内单元,它的温度变得高于基准值,并且在致热操作时是各室内单元中间的最低者,而在致冷操作时是各室内单元中间的最高者。
6.如权利要求1所述的方法,其中,连续关闭各制冷剂控制阀门的同时重复实行所述管线连接查找操作,直至完成整个的检查。
7.一种多空调系统的管线连接查找方法,所述多空调系统包括一个室外单元,与该室外单元相连的多个室内单元,连接在室外单元与各室内单元之间的多条制冷剂管线,以及安装在各制冷剂管线上的多个制冷剂控制阀门,其中,所述方法包括如下步骤:
测量室外温度,并根据室外温度选择多空调系统的工作方式;
在关闭制冷剂控制阀门的同时操作所述多空调系统,并关闭各制冷剂控制阀门之一;
测量各室内单元的温度差;以及
确认室内单元为它的温度差大于基准值的室内单元,以设定为与所述被关闭的制冷剂控制阀门相连的室内单元。
8.如权利要求7所述的方法,其中,当不存在其温度差大于所述基准值的室内单元时,确认所述制冷剂控制阀门与所述室内单元之间的连接为不正常连接。
9.如权利要求8所述的方法,其中,当确认所述制冷剂控制阀门与所述室内单元之间的连接为不正常连接时,在显示部件上显示所述制冷剂控制阀门。
10.一种多空调系统,它包括:
与一个室外单元相连的多个室内单元;
连接在室外单元与各室内单元之间的多条制冷剂管线;
安装在室外单元处的室外温度传感器;
安装在各制冷剂管线上的多个制冷剂控制阀门;以及
控制器,用以实行控制操纵,以根据室外温度传感器测得的室外温度选择多空调系统的工作方式,并查找管线连接。
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