技术领域technical field
本发明涉及多联机。The present invention relates to multiple connections.
背景技术Background technique
现有的多联机，基本上是一个外机对应多个并联的内机，或者多个并联外机对应多个并联内机。内机和外机之间的管路连接采用的是两管制：一个液管和一个气管。内机并联，只能同时制冷或者同时制热。提供热回收方案的多联机采用了三管制：一根高压气管、一个低压气管和一根液管。其中，进行制冷或者制热的时候，内机并联采用了相同的蒸发温度和冷凝温度。实际上，每个内机需要的蒸发温度可以不相同的，得到不同的冷量，实现除湿或者制冷的功能。另外每个内机在制热的时候不需要相同冷凝温度的，等到不同的热量。The existing multi-connected units are basically one external unit corresponding to multiple parallel connected internal units, or multiple parallel connected external units corresponding to multiple parallel connected internal units. The pipeline connection between the internal machine and the external machine adopts two pipes: a liquid pipe and an air pipe. The indoor units are connected in parallel and can only cool or heat at the same time. The multi-line unit that provides the heat recovery solution uses three pipes: a high-pressure air pipe, a low-pressure air pipe and a liquid pipe. Among them, when performing cooling or heating, the parallel connection of the indoor units adopts the same evaporation temperature and condensation temperature. In fact, the evaporating temperature required by each indoor unit can be different to obtain different cooling capacity to achieve the function of dehumidification or cooling. In addition, each internal unit does not need to have the same condensing temperature when heating, and waits for different heat.
发明内容Contents of the invention
本发明的目的在于提供一种不同的室内机能够得到不同蒸发温度或冷凝温度或运行模式的多联机。The purpose of the present invention is to provide a multi-split unit in which different indoor units can obtain different evaporating temperatures or condensing temperatures or operating modes.
为实现所述目的的多联机，其特点是，包括A multi-line for achieving said purpose is characterized in that it includes
N个室外机和M个室内机，M大于N，N大于1，室外机包括压缩机、室外换热器以及四通阀，室内机包括室内换热器，该N个室外机和M个室内机之间通过管路连接成制冷剂循环回路；N outdoor units and M indoor units, where M is greater than N and N is greater than 1, the outdoor units include compressors, outdoor heat exchangers and four-way valves, the indoor units include indoor heat exchangers, the N outdoor units and M indoor units The machines are connected by pipelines to form a refrigerant circulation loop;
在该制冷剂回路中，各室外机的压缩机的喷出端通过管路和四通阀的第三端口连接，压缩机的吸入端通过管路和四通阀的第一端口连接，室外换热器的气体侧端通过管路和四通阀的第四端口连接；In this refrigerant circuit, the discharge end of the compressor of each outdoor unit is connected to the third port of the four-way valve through a pipeline, and the suction end of the compressor is connected to the first port of the four-way valve through a pipeline. The gas side end of the heater is connected with the fourth port of the four-way valve through a pipeline;
在该制冷剂回路中，各室内换热器的气体侧端连接有至少两个支路，各支路中设置有控制阀，M个室内换热器的各支路连接不同的气体集管，各气体集管连接至少一个室外机的四通阀的第二端口；室外换热器的液体侧端通过管路连接液体集管，各室内换热器的液体侧连接该液体集管，室内换热器至室外换热器的管路中设置有节流装置。In the refrigerant circuit, at least two branches are connected to the gas side ends of each indoor heat exchanger, each branch is provided with a control valve, and each branch of the M indoor heat exchangers is connected to a different gas header, Each gas header is connected to the second port of the four-way valve of at least one outdoor unit; the liquid side end of the outdoor heat exchanger is connected to the liquid header through a pipeline, the liquid side of each indoor heat exchanger is connected to the liquid header, and the indoor heat exchanger A throttling device is arranged in the pipeline from the heater to the outdoor heat exchanger.
所述的多联机，其进一步的特点是，设第i气体集管连接至少一个第i室外机，i为1至N之间的整数，当第i室外机的数量大于1时，i的最大值小于N，第i气体集管通过热回收管路连通N个室外机中除第i室外机外的至少一个的室外换热器的气体侧端和四通阀的第四端口之间的管路，所述热回收管路中设置有控制阀。The further feature of the multi-line is that the i-th gas header is connected to at least one i-th outdoor unit, i is an integer between 1 and N, and when the number of the i-th outdoor unit is greater than 1, the maximum value of i value is less than N, the i-th gas header is connected to the pipe between the gas side end of the outdoor heat exchanger of at least one of the N outdoor units except the i-th outdoor unit and the fourth port of the four-way valve through the heat recovery pipeline The heat recovery pipeline is provided with a control valve.
所述的多联机，其进一步的特点是，气体集管的管数最少为2。A further feature of the multi-line is that the number of gas headers is at least 2.
所述的多联机，其进一步的特点是，各气体集管对应的室外机数量均等或者相差1。A further feature of the multi-split unit is that the number of outdoor units corresponding to each gas header is equal or differs by 1.
所述的多联机，其进一步的特点是，该多联机处于标准制冷模式，各室外机的压缩机开启，各室外机的四通阀切换至制冷模式，即其第一端口和第二端口连通、第三端口和第四端口连通；各所述支路的控制阀打开，各所述压缩机采用相同的运行频率。The further feature of the multi-connected unit is that the multi-connected unit is in the standard cooling mode, the compressors of each outdoor unit are turned on, and the four-way valves of each outdoor unit are switched to the cooling mode, that is, the first port and the second port are connected to each other. , the third port and the fourth port are connected; the control valves of each branch are opened, and the compressors adopt the same operating frequency.
所述的多联机，其进一步的特点是，该多联机处于不同负荷制冷模式，M个室内换热器至少区分为第一部分和第二部分，第一部分室内换热器的制冷量需求比第二部分室内换热器的制冷量需求要高；N个气体集管至少区分第一部分和第二部分；各室外机的压缩机开启，各室外机的四通阀切换至制冷模式，即其第一端口和第二端口连通、第三端口和第四端口连通；制冷量需求较高的第一部分室内换热器通过关闭其气体侧端连接的部分支路从而仅与第一部分气体集管连通，制冷量需求较低的第二部分室内换热器通过关闭其气体侧端连接的部分支路从而仅与第二部分集管连通，与所述第一部分气体集管分别连接的四通阀所在的室外机的压缩机的运行频率要高于与所述第二部分气体集管分别连接的四通阀所在的室外机的压缩机的运行频率。The further feature of the multi-split unit is that the multi-split unit is in different load refrigeration modes, and the M indoor heat exchangers are at least divided into the first part and the second part, and the cooling capacity demand of the first part of the indoor heat exchanger is higher than that of the second part. Some indoor heat exchangers have a high demand for cooling capacity; N gas headers at least distinguish the first part and the second part; the compressors of each outdoor unit are turned on, and the four-way valves of each outdoor unit are switched to cooling mode, that is, their first The port is connected with the second port, and the third port is connected with the fourth port; the first part of the indoor heat exchanger with a higher demand for cooling capacity is only connected to the first part of the gas header by closing the part of the branch connected to the gas side end. The second part of the indoor heat exchanger with lower volume demand is only connected to the second part of the header by closing the part of the branch connected to the gas side end, and the outdoor four-way valve connected to the first part of the gas header is located The operating frequency of the compressor of the outdoor unit is higher than the operating frequency of the compressor of the outdoor unit where the four-way valves respectively connected to the second part of the gas header are located.
所述的多联机，其进一步的特点是，该多联机处于标准制热模式，各室外机的压缩机开启，各室外机的四通阀制热模式，即其第一端口和第四端口连通、第二端口和第三端口连通；各所述支路的控制阀打开，各所述压缩机采用相同的运行频率。The further feature of the multi-connected unit is that the multi-connected unit is in the standard heating mode, the compressor of each outdoor unit is turned on, and the four-way valve of each outdoor unit is in the heating mode, that is, the first port and the fourth port are connected to each other. , the second port and the third port are connected; the control valves of each branch are opened, and the compressors adopt the same operating frequency.
所述的多联机，其进一步的特点是，该多联机处于不同负荷制热模式，M个室内换热器至少区分为第一部分和第二部分，第一部分室内换热器的制热量需求比第二部分室内换热器的制热量需求要高；N个气体集管至少区分第一部分和第二部分；各室外机的压缩机开启，各室外机的四通阀制热模式，即其第一端口和第四端口连通、第二端口和第三端口连通；制热量需求较高的第一部分室内换热器通过关闭其气体侧端连接的部分支路从而仅与第一部分气体集管连通，制热量需求较低的第二部分室内换热器通过关闭其气体侧端连接的部分支路从而仅与第二部分集管连通，与所述第一部分气体集管分别连接的四通阀所在的室外机的压缩机的运行频率要高于与所述第二部分气体集管分别连接的四通阀所在的室外机的压缩机的运行频率。The further feature of the multi-split unit is that the multi-split unit is in different load heating modes, and the M indoor heat exchangers are at least divided into a first part and a second part, and the heating capacity demand of the first part indoor heat exchanger is higher than that of the first part. The heating capacity demand of the two-part indoor heat exchanger should be high; the N gas headers at least distinguish the first part and the second part; the compressors of each outdoor unit are turned on, and the four-way valve heating mode of each outdoor unit is its first The port is connected with the fourth port, and the second port is connected with the third port; the first part of the indoor heat exchanger with a higher demand for heating capacity is only connected to the first part of the gas header by closing part of the branch connected to the gas side end. The second part of the indoor heat exchanger with low heat demand is only connected to the second part of the header by closing part of the branch connected to the gas side end, and the outdoor four-way valve connected to the first part of the gas header is located The operating frequency of the compressor of the outdoor unit is higher than the operating frequency of the compressor of the outdoor unit where the four-way valves respectively connected to the second part of the gas header are located.
所述的多联机，其进一步的特点是，该多联机处于制冷热回收模式，M个室内换热器至少区分为第一部分和第二部分，第一部分室内换热器需要制冷，第二部分室内换热器需要制热；各压缩机开启，所述N个四通阀区分为第一部分和第二部分，第一部分四通阀处于制冷模式，即其第一端口和第二端口连通、第三端口和第四端口连通；第二部分四通阀处于制热模式，即其第一端口和第四端口连通、第二端口和第三端口连通；N个气体集管至少区分第一部分和第二部分，第一部分气体集管与处于制冷模式的第一部分四通阀的第二端口分别连接，第二部分气体集管与处于制热模式的第二部分四通阀的第二端口分别连接；各热回收管路的控制阀开启，有制冷需求的第一部分室内换热器通过关闭其气体侧端连接的部分支路从而仅与第一部分气体集管连通，有制热需求的第二部分室内换热器通过关闭其气体侧端连接的部分支路从而仅与第二部分集管连通，第二部分四通阀所在室外机的室外换热器关闭。The further feature of the multi-connection unit is that the multi-connection unit is in the refrigeration heat recovery mode, and the M indoor heat exchangers are at least divided into the first part and the second part, the first part of the indoor heat exchanger needs to be refrigerated, and the second part of the indoor The heat exchanger needs heating; each compressor is turned on, and the N four-way valves are divided into the first part and the second part. The port is connected with the fourth port; the second part of the four-way valve is in the heating mode, that is, its first port is connected with the fourth port, and the second port is connected with the third port; N gas manifolds at least distinguish the first part and the second part, the first part of the gas manifold is connected to the second port of the first part of the four-way valve in cooling mode, and the second part of the gas manifold is respectively connected to the second port of the second part of the four-way valve in the heating mode; The control valve of the heat recovery pipeline is opened, the first part of the indoor heat exchanger with cooling demand is only connected to the first part of the gas header by closing the branch connected to the gas side end, and the second part of the indoor heat exchanger with heating demand The heater is only connected to the second part of the header by closing part of the branch connected to its gas side end, and the outdoor heat exchanger of the outdoor unit where the four-way valve of the second part is located is closed.
所述的多联机，其进一步的特点是，该多联机处于除霜模式，N个室外机区分为第一部分和第二部分，第一部分室外机中，其室外换热器需要除霜，四通阀处于制冷模式，即其第一端口和第二端口连通、第三端口和第四端口连通；第二部分室外机中，其四通阀处于制热模式，即其第一端口和第四端口连通、第二端口和第三端口连通；N个气体集管至少区分第一部分和第二部分，第一部分气体集管与处于制冷模式的四通阀的第二端口分别接通，第二部分气体集管与处于制热模式的四通阀的第二端口分别接通；N个室内换热器区分为第一部分和第二部分，第一部分室内换热器通过关闭其气体侧端连接的部分支路从而仅与第一部分气体集管连通，第二部分室内换热器通过关闭其气体侧端连接的部分支路从而仅与第二部分集管连通；第一部分热回收管路的控制阀关闭，第二部分热回收管路的控制阀打开。The further feature of the multi-connected unit is that the multi-connected unit is in the defrosting mode, and the N outdoor units are divided into the first part and the second part. In the first part of the outdoor unit, the outdoor heat exchanger needs to be defrosted, and the four-way The valve is in the cooling mode, that is, its first port is connected with the second port, and the third port is connected with the fourth port; in the second part of the outdoor unit, its four-way valve is in the heating mode, that is, its first port and the fourth port Communication, the second port and the third port are connected; N gas headers at least distinguish the first part and the second part, the first part of the gas header is respectively connected to the second port of the four-way valve in refrigeration mode, the second part of the gas The manifold is respectively connected to the second port of the four-way valve in heating mode; the N indoor heat exchangers are divided into the first part and the second part, and the first part of the indoor heat The road is only connected to the first part of the gas header, and the second part of the indoor heat exchanger is only connected to the second part of the header by closing the part of the branch connected to the gas side end; the control valve of the first part of the heat recovery pipeline is closed, The control valve of the second heat recovery line is opened.
本发明的实现不难，可以在内机三管制的基础上进行改进而得到，室内机能够得到不同蒸发温度、冷凝温度、运行模式，有多个外机提供不同的冷凝温度和蒸发温度，同时本发明的实施例还可以保留原来机组的制冷热回收功能，还可以实现外机单独除霜。The realization of the present invention is not difficult, and it can be improved on the basis of the three controls of the internal unit. The indoor unit can obtain different evaporation temperatures, condensation temperatures, and operating modes, and multiple outdoor units can provide different condensation temperatures and evaporation temperatures. Simultaneously The embodiment of the present invention can also retain the refrigeration heat recovery function of the original unit, and can also realize the independent defrosting of the external unit.
附图说明Description of drawings
本发明的上述的以及其他的特征、性质和优势将通过下面结合附图和实施例的描述而变得更加明显，其中：The above and other features, properties and advantages of the present invention will become more apparent from the following description in conjunction with the accompanying drawings and embodiments, in which:
图1为本发明一实施例中的多联机处于标准制冷模式的方框图。Fig. 1 is a block diagram of a multi-line unit in a standard cooling mode in an embodiment of the present invention.
图2为图1所示的多联机处于不同负荷制冷模式的方框图。Fig. 2 is a block diagram of the cooling modes of the multi-split units shown in Fig. 1 in different loads.
图3为图1所示的多联机处于标准制热模式的方框图。Fig. 3 is a block diagram of the multi-split unit shown in Fig. 1 in a standard heating mode.
图4为图1所示的多联机处于不同负荷制热模式的方框图。Fig. 4 is a block diagram of the multi-split units shown in Fig. 1 in different load heating modes.
图5为图1所示的多联机处于制冷热回收模式的方框图。Fig. 5 is a block diagram of the multiple units shown in Fig. 1 in the refrigeration heat recovery mode.
图6为图1所示的多联机处于除霜模式的方框图。Fig. 6 is a block diagram of the multi-connector shown in Fig. 1 in the defrosting mode.
图7为图1所示的多联机处于除霜模式的方框图。Fig. 7 is a block diagram of the multi-connector shown in Fig. 1 in the defrosting mode.
具体实施方式detailed description
在以下的描述中，参考各实施例对本发明进行描述。然而，本领域的技术人员将认识到可在没有一个或多个特定细节的情况下或者与其它替换和/或附加方法、材料或组件一起实施各实施例。在其它情形中，未示出或未详细描述公知的结构、材料或操作以免使本发明的各实施例的诸方面晦涩。类似地，为了解释的目的，阐述了特定数量和配置，以便提供对本发明的实施例的全面理解。然而，本发明可在没有特定细节的情况下实施。此外，应理解附图中示出的各实施例是说明性表示且不一定按比例绘制。In the following description, the present invention is described with reference to various examples. One skilled in the art will recognize, however, that the various embodiments may be practiced without one or more of the specific details, or with other alternative and/or additional methods, materials, or components. In other instances, well-known structures, materials, or operations are not shown or described in detail so as not to obscure aspects of the various embodiments of the invention. Similarly, for purposes of explanation, certain quantities and configurations were set forth in order to provide a thorough understanding of the embodiments of the invention. However, the invention may be practiced without these specific details. Furthermore, it should be understood that the various embodiments shown in the drawings are illustrative representations and are not necessarily drawn to scale.
在以下的描述中阐述了更多的细节以便于充分理解本发明，但是本发明显然能够以多种不同于此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下根据实际应用情况作类似推广、演绎，因此不应以此具体实施例的内容限制本发明的保护范围。In the following description, more details are set forth in order to fully understand the present invention, but the present invention can obviously be implemented in many other ways different from this description, and those skilled in the art can Similar promotions and deductions are made according to actual application situations, so the content of this specific embodiment should not limit the protection scope of the present invention.
图1至图7中的任一图显示了本发明一实施例中多联机的线路构造图，需要注意的是，这些以及后续其他的附图均仅作为示例，其并非是按照一个零件不少的完整线路绘制的，其省略的细节部分可以由本领域技术人员根据本发明的教导进行补充，这不应该以此作为对本发明实际要求的保护范围构成限制。Any one of Figures 1 to 7 shows the circuit structure diagram of the multi-line in an embodiment of the present invention. It should be noted that these and other subsequent drawings are only examples, and they are not based on one part. The complete circuit is drawn, and the omitted details can be supplemented by those skilled in the art according to the teaching of the present invention, which should not be taken as a limitation to the protection scope of the actual claims of the present invention.
本发明的一实施例中，多联机包括N个室外机和M个室内机，M大于N，N大于1，在图1中，N为2，M为5，但不限于此，N可以为三或者其他适合于工程需要的数量，同样地，M也不限于为5。室外机包括压缩机、室外换热器以及四通阀，室内机包括室内换热器，该N个室外机和M个室内机之间通过管路连接成制冷剂循环回路。In one embodiment of the present invention, the multi-connected unit includes N outdoor units and M indoor units, M is greater than N, and N is greater than 1. In Figure 1, N is 2 and M is 5, but not limited thereto, and N can be Three or other quantities suitable for engineering needs. Similarly, M is not limited to 5. The outdoor unit includes a compressor, an outdoor heat exchanger and a four-way valve, the indoor unit includes an indoor heat exchanger, and the N outdoor units and the M indoor units are connected through pipelines to form a refrigerant circulation loop.
在发明的实施例中，N个室外机可能被会区分为第一部分和第二部分，同样地，室内机也可能会被区分为第一部分和第二部分。在图1中，压缩机111代表第一部分压缩机，压缩机112代表第二部分压缩机，室外换热器101代表第一部分室外换热器，室外换热器102代表第二部分室外换热器，室内换热器121、122、123代表第一部分室内换热器，室内换热器124、125代表第二部分室内换热器，四通阀11代表第一部分四通阀，四通阀12代表第二部分四通阀，气体集管411代表第一部分气体集管，气体集管412代表第二部分气体集管，热回收管311代表第一部分热回收管，热回收管312代表第二部分热回收管。此外，各室内换热器的气体侧端连接的支路511代表第一部分支路，支路512代表第二部分支路。In the embodiment of the invention, the N outdoor units may be divided into the first part and the second part, and similarly, the indoor units may also be divided into the first part and the second part. In Fig. 1, the compressor 111 represents the first part of the compressor, the compressor 112 represents the second part of the compressor, the outdoor heat exchanger 101 represents the first part of the outdoor heat exchanger, and the outdoor heat exchanger 102 represents the second part of the outdoor heat exchanger , the indoor heat exchangers 121, 122, 123 represent the first part of the indoor heat exchangers, the indoor heat exchangers 124, 125 represent the second part of the indoor heat exchangers, the four-way valve 11 represents the first part of the four-way valve, and the four-way valve 12 represents the The second part of the four-way valve, the gas manifold 411 represents the first part of the gas manifold, the gas manifold 412 represents the second part of the gas manifold, the heat recovery pipe 311 represents the first part of the heat recovery pipe, and the heat recovery pipe 312 represents the second part of the heat recovery pipe. Recovery tube. In addition, the branch 511 connected to the gas side ends of each indoor heat exchanger represents the first partial branch, and the branch 512 represents the second partial branch.
如图1所示，压缩机111的吸入端与四通阀11的第三端口通过管路相接，压缩机111的喷出端与四通阀11的第一端口通过管路相接，室外换热器101的气体侧端通过管路与四通阀11的第四端口相接，四通阀11的第二端口与所述的第一气体集管411相接。对应于室内换热器121、122、123、124、125，设置有两气体集管411、412，各室内换热器通过其气体侧端的支路511、512与两气体集管411、412分别相接，各室内换热器的液体侧端连接液体集管213，液体集管213与室外换热器101的液体侧端通过管路连接。As shown in Figure 1, the suction end of the compressor 111 is connected to the third port of the four-way valve 11 through a pipeline, and the discharge end of the compressor 111 is connected to the first port of the four-way valve 11 through a pipeline. The gas side end of the heat exchanger 101 is connected to the fourth port of the four-way valve 11 through a pipeline, and the second port of the four-way valve 11 is connected to the first gas header 411 . Corresponding to the indoor heat exchangers 121, 122, 123, 124, and 125, two gas headers 411, 412 are provided. Connected, the liquid side ends of each indoor heat exchanger are connected to the liquid header 213, and the liquid header 213 is connected to the liquid side end of the outdoor heat exchanger 101 through pipelines.
在图1中，压缩机111、四通阀11、室外换热器101收纳于一个室外机中，而压缩机112、四通阀12、室外换热器102收纳于另一个室外机中，二者相当于是并联设置。即压缩机112的吸入端与四通阀12的第三端口通过管路相接，压缩机112的喷出端与四通阀12的第一端口通过管路相接，室外换热器102的气体侧端通过管路与四通阀12的第四端口相接，四通阀12的第二端口与第二气体集管412相接。各室内换热器的液体侧端连接液体集管213，液体集管213也与室外换热器102的液体侧端通过管路连接。In FIG. 1, the compressor 111, the four-way valve 11, and the outdoor heat exchanger 101 are stored in one outdoor unit, while the compressor 112, the four-way valve 12, and the outdoor heat exchanger 102 are stored in another outdoor unit. Or is equivalent to a parallel setting. That is, the suction end of the compressor 112 is connected to the third port of the four-way valve 12 through a pipeline, the discharge end of the compressor 112 is connected to the first port of the four-way valve 12 through a pipeline, and the outdoor heat exchanger 102 The gas side end is connected to the fourth port of the four-way valve 12 through a pipeline, and the second port of the four-way valve 12 is connected to the second gas header 412 . The liquid side end of each indoor heat exchanger is connected to the liquid header 213, and the liquid header 213 is also connected to the liquid side end of the outdoor heat exchanger 102 through pipelines.
继续参照图1，热回收管311的一端连接在室外换热器101至四通阀11之间的管路，而另一端连接于第二气体集管412。热回收管312的一端连接在室外换热器102至四通阀12之间的管路，而另一端连接于第一气体集管411。Continuing to refer to FIG. 1 , one end of the heat recovery pipe 311 is connected to the pipeline between the outdoor heat exchanger 101 and the four-way valve 11 , and the other end is connected to the second gas header 412 . One end of the heat recovery pipe 312 is connected to the pipeline between the outdoor heat exchanger 102 and the four-way valve 12 , and the other end is connected to the first gas header 411 .
继续参照图1，热回收管311、312中设置有控制阀门，各支路511、512中也设置有控制阀门。Continuing to refer to FIG. 1 , control valves are set in the heat recovery pipes 311 , 312 , and control valves are also set in each branch 511 , 512 .
室外换热器101的液体侧端并联设置有膨胀阀61和单向阀62，在各室内换热器121、122、123、124、125的液体侧端设置有膨胀阀63，膨胀阀61和单向阀62、膨胀阀63构成其制冷剂回路中的节流装置。The liquid side end of the outdoor heat exchanger 101 is provided with expansion valve 61 and one-way valve 62 in parallel, and the liquid side end of each indoor heat exchanger 121, 122, 123, 124, 125 is provided with expansion valve 63, expansion valve 61 and The one-way valve 62 and the expansion valve 63 constitute throttling devices in the refrigerant circuit thereof.
图1至图7分别示出了多联机的不同运行模式。下面分别说明。Figure 1 to Figure 7 respectively show the different operating modes of the multi-line. Instructions are given below.
图1示出了标准制冷模式，在该模式下，压缩机111、112开启，四通阀11处于制冷模式、四通阀12制冷模式，四通阀的制冷模式是其第一端口和第四端口接通，第三端口和第二端口接通，四通阀的制热模式是其第一端口和第二端口接通，第四端口和第三端口接通。热回收管路311、312中的控制阀21、22关闭。各支路511、512的控制阀211、212打开，室内机换热器121、122、123、124、125采用相同的蒸发温度进行制冷；压缩机111和压缩机112采用相同的运行频率。Figure 1 shows the standard cooling mode, in this mode, the compressors 111, 112 are turned on, the four-way valve 11 is in the cooling mode, the four-way valve 12 is in the cooling mode, and the cooling mode of the four-way valve is its first port and the fourth port. The port is connected, the third port is connected with the second port, and the heating mode of the four-way valve is that the first port is connected with the second port, and the fourth port is connected with the third port. The control valves 21, 22 in the heat recovery lines 311, 312 are closed. The control valves 211, 212 of each branch 511, 512 are opened, and the indoor unit heat exchangers 121, 122, 123, 124, 125 use the same evaporation temperature for cooling; the compressor 111 and compressor 112 use the same operating frequency.
制冷剂按照图中箭头方式流动。室外换热器101、102进行冷凝动作，室内换热器121、122、123、124、125进行蒸发动作。The refrigerant flows in the direction of the arrows in the figure. The outdoor heat exchangers 101, 102 perform condensation operations, and the indoor heat exchangers 121, 122, 123, 124, 125 perform evaporation operations.
图2示出了不同负荷制冷模式，在该模式下，假设室内换热器124、125的制冷量需求低，室内换热器121、122、123的制冷需求高。压缩机111、112开启，四通阀11、12处于制冷模式，控制阀21、22关闭。室内换热器121、122、123对应的支路511的控制阀211关闭，室内换热器124、125对应的支路512的控制阀212关闭，室内换热器121、122、123对应的支路512的控制阀212打开，室内换热器124、125对应的支路511的控制阀211打开。室内机采用不同的蒸发温度进行制冷。压缩机111采用高频率运行，满足室内换热器121、122、123的高制冷量需求。压缩机112采用低运行频率，得到高蒸发温度，降低机组的能耗。制冷剂按照图中箭头方式流动。室外换热器101、102进行冷凝动作，室内换热器121、122、123、124、125进行蒸发动作。Fig. 2 shows cooling modes with different loads. In this mode, it is assumed that the cooling demands of the indoor heat exchangers 124 and 125 are low, and the cooling demands of the indoor heat exchangers 121, 122 and 123 are high. The compressors 111 and 112 are turned on, the four-way valves 11 and 12 are in cooling mode, and the control valves 21 and 22 are closed. The control valve 211 of the branch 511 corresponding to the indoor heat exchangers 121, 122, 123 is closed, the control valve 212 of the branch 512 corresponding to the indoor heat exchangers 124, 125 is closed, and the branch corresponding to the indoor heat exchangers 121, 122, 123 The control valve 212 of the road 512 is opened, and the control valve 211 of the branch road 511 corresponding to the indoor heat exchangers 124 and 125 is opened. The indoor units use different evaporating temperatures for cooling. The compressor 111 operates at a high frequency to meet the high cooling capacity requirements of the indoor heat exchangers 121 , 122 , and 123 . The compressor 112 adopts a low operating frequency to obtain a high evaporation temperature and reduce the energy consumption of the unit. The refrigerant flows in the direction of the arrows in the figure. The outdoor heat exchangers 101, 102 perform condensation operations, and the indoor heat exchangers 121, 122, 123, 124, 125 perform evaporation operations.
图3示出了标准制热模式，在该模式下，压缩机111开、压缩机112开，四通阀11处于制热模式，四通阀12处于制热模式，控制阀21关、控制阀22关，控制阀211、212全开，室内机采用相同的冷凝温度进行制热；压缩机111和压缩机112采用相同的运行频率。室外换热器101、102进行蒸发动作，室内换热器121、122、123、124、125进行冷凝动作。Figure 3 shows the standard heating mode, in this mode, the compressor 111 is on, the compressor 112 is on, the four-way valve 11 is in the heating mode, the four-way valve 12 is in the heating mode, the control valve 21 is closed, the control valve 22 off, the control valves 211 and 212 are fully open, the indoor unit uses the same condensing temperature for heating; the compressor 111 and compressor 112 use the same operating frequency. The outdoor heat exchangers 101 and 102 perform an evaporation operation, and the indoor heat exchangers 121, 122, 123, 124, and 125 perform a condensation operation.
图4示出了不同负荷制热模式，假设室内换热器124和室内换热器125的制热量需求低。压缩机111开，压缩机112开，四通阀11处于制热模式，四通阀12处于制热模式，控制阀21关，控制阀22关，室内换热器121、122、123的气体侧端的第一支路511的控制阀211关闭，第二支路512的第二控制阀212打开，室内换热器123、124的气体侧端的第一支路511的控制阀211打开、第二支路512的控制阀212关闭。室内机121、122、123、124、125采用不同的冷凝温度进行制热。压缩机111采用高频率运行，满足室内换热器121、122、123的高制冷量需求，得到高出风温度；压缩机112采用低运行频率，得到低冷凝温度，降低机组的能耗。室外换热器101、102进行蒸发动作，室内换热器121、122、123、124、125进行冷凝动作。FIG. 4 shows different load heating modes, assuming that the heating capacity requirements of the indoor heat exchanger 124 and the indoor heat exchanger 125 are low. The compressor 111 is turned on, the compressor 112 is turned on, the four-way valve 11 is in the heating mode, the four-way valve 12 is in the heating mode, the control valve 21 is closed, the control valve 22 is closed, the gas side of the indoor heat exchangers 121, 122, 123 The control valve 211 of the first branch 511 of the end is closed, the second control valve 212 of the second branch 512 is opened, the control valve 211 of the first branch 511 of the gas side end of the indoor heat exchanger 123, 124 is opened, and the second branch The control valve 212 of the road 512 is closed. The indoor units 121, 122, 123, 124, and 125 use different condensation temperatures for heating. The compressor 111 operates at high frequency to meet the high cooling capacity requirements of the indoor heat exchangers 121, 122, and 123 to obtain a higher outlet air temperature; the compressor 112 operates at a low frequency to obtain a low condensation temperature and reduce energy consumption of the unit. The outdoor heat exchangers 101 and 102 perform an evaporation operation, and the indoor heat exchangers 121, 122, 123, 124, and 125 perform a condensation operation.
图5示出了制冷热回收模式，假设室内换热器121、122、123需要制冷，室内换热器124和室内换热器125需要制热。压缩机111开、压缩机112开、四通阀11处于制冷模式、四通阀12处于制热模式、控制阀21开、控制阀22开，室内换热器121、122、123的气体侧端的第一支路511的控制阀211关闭、第二支路的控制阀212打开，室内换热器124、125的气体侧端的第一支路511的控制阀211打开、第二支路的控制阀212关闭。压缩机111和压缩机112可以采用相同频率运行，室外换热器102的入口膨胀阀关闭不工作，室内换热器121、122、123处于蒸发工作，满足室内换热器121、122、123的制冷量需求；室内换热器124、室内换热器125处于冷凝端，得到制热量，室外换热器101处于冷凝端，调节风机，释放多余的热量。Fig. 5 shows the cooling heat recovery mode, assuming that the indoor heat exchangers 121, 122, 123 need cooling, and the indoor heat exchanger 124 and the indoor heat exchanger 125 need heating. Compressor 111 is on, compressor 112 is on, four-way valve 11 is in cooling mode, four-way valve 12 is in heating mode, control valve 21 is on, control valve 22 is on, the gas side ends of indoor heat exchangers 121, 122, 123 The control valve 211 of the first branch 511 is closed, the control valve 212 of the second branch is opened, the control valve 211 of the first branch 511 at the gas side end of the indoor heat exchanger 124, 125 is opened, and the control valve of the second branch 212 off. Compressor 111 and compressor 112 can operate at the same frequency, the inlet expansion valve of the outdoor heat exchanger 102 is closed and does not work, and the indoor heat exchangers 121, 122, 123 are in evaporation work, meeting the requirements of the indoor heat exchangers 121, 122, 123 Demand for cooling capacity: the indoor heat exchanger 124 and the indoor heat exchanger 125 are at the condensing end to obtain heating capacity, and the outdoor heat exchanger 101 is at the condensing end to adjust the fan to release excess heat.
图7示出了室外换热器101的除霜模式，室外换热器101需要除霜；压缩机111开、压缩机112开、四通阀11切换至制冷模式、四通阀12切换至制热模式、控制阀21关、控制阀22开，室内换热器121、122、123的气体侧端的第一支路511的控制阀211打开、第二支路的控制阀212关闭，室内换热器124、125的气体侧端的第一支路511的控制阀211打开、第二支路的控制阀212关闭，室外换热器101进行冷凝动作，进行除霜，压缩机111通过控制阀22从室外换热器102吸气。Figure 7 shows the defrosting mode of the outdoor heat exchanger 101. The outdoor heat exchanger 101 needs to be defrosted; In thermal mode, the control valve 21 is closed, the control valve 22 is opened, the control valve 211 of the first branch 511 of the gas side ends of the indoor heat exchangers 121, 122, 123 is opened, the control valve 212 of the second branch is closed, and the indoor heat exchange The control valve 211 of the first branch 511 at the gas side ends of the devices 124 and 125 is opened, the control valve 212 of the second branch is closed, the outdoor heat exchanger 101 performs condensation and defrosting, and the compressor 111 passes the control valve 22 from The outdoor heat exchanger 102 draws air.
图6示出了室外换热器102的除霜模式，压缩机111开、压缩机112开、四通阀11切换至制热模式、四通阀12切换至制冷模式、控制阀21开、控制阀22关，室内换热器121、122、123的气体侧端的第一支路511的控制阀211关闭、第二支路的控制阀212打开，室内换热器124、125的气体侧端的第一支路511的控制阀211关闭、第二支路的控制阀212打开，室外换热器102处于冷凝端，进行除霜，压缩机112通过控制阀21从室内蒸发器101吸气。Figure 6 shows the defrosting mode of the outdoor heat exchanger 102, the compressor 111 is turned on, the compressor 112 is turned on, the four-way valve 11 is switched to the heating mode, the four-way valve 12 is switched to the cooling mode, the control valve 21 is opened, and the Valve 22 is closed, the control valve 211 of the first branch 511 of the gas side ends of the indoor heat exchangers 121, 122, 123 is closed, the control valve 212 of the second branch is opened, and the first branch of the gas side ends of the indoor heat exchangers 124, 125 is closed. The control valve 211 of the first branch 511 is closed, the control valve 212 of the second branch is opened, the outdoor heat exchanger 102 is at the condensation end, and defrosting is performed, and the compressor 112 sucks air from the indoor evaporator 101 through the control valve 21 .
依据前述实施例中，可以理解到，N个室外机和M个室内机，M大于N，N大于1，室外机包括压缩机、室外换热器以及四通阀，室内机包括室内换热器，该N个室外机和M个室内机之间通过管路连接成制冷剂循环回路；在该制冷剂回路中，各室外机的压缩机的喷出端通过管路和四通阀的第一端口连接，压缩机的吸入端通过管路和四通阀的第三端口连接，室外换热器的气体侧端通过管路和四通阀的第四端口连接；在该制冷剂回路中，各室内换热器的气体侧端连接有N个支路，各支路中设置有控制阀，M个室内换热器的各第i支路连接第i气体集管，i为1至N之间的整数，第i气体集管连接第i室外机的四通阀的第二端口；室外换热器的液体侧端通过管路连接液体集管，各室内换热器的液体侧连接该液体集管，室内换热器至室外换热器的管路中设置有节流装置。According to the foregoing embodiments, it can be understood that for N outdoor units and M indoor units, M is greater than N, and N is greater than 1. The outdoor units include compressors, outdoor heat exchangers and four-way valves, and the indoor units include indoor heat exchangers. , the N outdoor units and the M indoor units are connected through pipelines to form a refrigerant circulation circuit; in this refrigerant circuit, the discharge end of the compressor of each outdoor unit passes through the first The suction end of the compressor is connected to the third port of the four-way valve through a pipeline, and the gas side end of the outdoor heat exchanger is connected to the fourth port of the four-way valve through a pipeline; in this refrigerant circuit, each The gas side end of the indoor heat exchanger is connected with N branches, each branch is provided with a control valve, and the i-th branch of the M indoor heat exchangers is connected to the i-th gas header, where i is between 1 and N is an integer, the i-th gas header is connected to the second port of the four-way valve of the i-th outdoor unit; the liquid side end of the outdoor heat exchanger is connected to the liquid header through a pipeline, and the liquid side of each indoor heat exchanger is connected to the liquid header A throttling device is installed in the pipeline from the indoor heat exchanger to the outdoor heat exchanger.
还可以理解到，集气管可以根据需要进行合并，最终集气管数量不少于2。It can also be understood that the air collecting pipes can be combined as required, and the final number of air collecting pipes is not less than two.
在较佳的实施例中，各个集气管对应的室外机数量相等或者相差1。In a preferred embodiment, the number of outdoor units corresponding to each air collecting pipe is equal or differs by 1.
具体地说，还可以增加一个图1中所示的左侧或右侧的室外机一样的室外机，该增加的室外机可以与图中左侧或右侧室外机连接相同的气体集管或者热回收管，或者不同的气体集管或者热回收管。Specifically, an outdoor unit that is the same as the left or right outdoor unit shown in Figure 1 can also be added, and the added outdoor unit can be connected to the same gas manifold as the left or right outdoor unit in the figure or Heat recovery pipes, or different gas headers or heat recovery pipes.
另外，液体集管213的数量也可以不限于一根，两根以上也是可以的，可以按照设计分配不同的室内机液体侧与它们连接。In addition, the number of liquid manifolds 213 is not limited to one, but more than two are also possible, and different liquid sides of indoor units can be allocated and connected to them according to the design.
出于说明和描述的目的已经给出了本发明的实施例的上述描述。不打算穷举或将本发明限于所公开的精确形式。本说明书和所附权利要求包括诸如第一、第二等术语，这些仅用于描述的目的而不应解释为限制。相关领域的技术人员可根据以上的教示领会到很多修改和变形是可能的。本领域的技术人员将认识到附图中所示的各组件的各种等价组合和替换。因此本发明的范围不是由该详细说明书限制而是由所附权利要求限定。因此，凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何修改、等同变化及修饰，均落入本发明权利要求所界定的保护范围之内。The foregoing description of the embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise forms disclosed. This specification and the appended claims contain terms such as first, second etc. which are used for descriptive purposes only and should not be construed as limiting. Those skilled in the relevant art will appreciate that many modifications and variations are possible in light of the above teachings. Those skilled in the art will recognize various equivalent combinations and substitutions of the various components shown in the figures. It is therefore intended that the scope of the invention be defined not by this detailed description but by the appended claims. Therefore, any modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention, all fall within the scope of protection defined by the claims of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670262.9ACN104456731B (en) | 2014-11-21 | 2014-11-21 | Multi-connected machine |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670262.9ACN104456731B (en) | 2014-11-21 | 2014-11-21 | Multi-connected machine |
| Publication Number | Publication Date |
|---|---|
| CN104456731A CN104456731A (en) | 2015-03-25 |
| CN104456731Btrue CN104456731B (en) | 2017-10-20 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410670262.9AActiveCN104456731B (en) | 2014-11-21 | 2014-11-21 | Multi-connected machine |
| Country | Link |
|---|---|
| CN (1) | CN104456731B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896621B (en)* | 2015-06-09 | 2017-08-29 | 广东美的暖通设备有限公司 | The control method of multi-online air-conditioning system and multi-online air-conditioning system |
| CN108759150B (en)* | 2018-05-09 | 2020-12-29 | 特灵空调系统(中国)有限公司 | Air conditioning system and its control method |
| CN109708216A (en)* | 2018-12-06 | 2019-05-03 | 珠海格力电器股份有限公司 | Modular multi-split air conditioning system and control method thereof |
| CN114857662B (en)* | 2022-05-05 | 2023-08-29 | 青岛海信日立空调系统有限公司 | Multi-split air conditioning system and control method thereof |
| CN115962629B (en)* | 2023-02-22 | 2025-01-24 | 青岛海信日立空调系统有限公司 | An open and close integrated drying machine |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100557348C (en)* | 2003-10-17 | 2009-11-04 | Lg电子株式会社 | Apparatus and method for controlling superheat in a heat pump system |
| CN102109203A (en)* | 2011-03-15 | 2011-06-29 | 广东美的电器股份有限公司 | Water source heat pump three-tube type heat recovery multi-online air conditioning system |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100499506B1 (en)* | 2003-01-13 | 2005-07-05 | 엘지전자 주식회사 | Multi type air conditioner |
| KR101300888B1 (en)* | 2006-07-25 | 2013-08-27 | 엘지전자 주식회사 | Multi-type air conditioner |
| JP5627620B2 (en)* | 2012-02-29 | 2014-11-19 | 日立アプライアンス株式会社 | Air conditioner |
| WO2014024276A1 (en)* | 2012-08-08 | 2014-02-13 | 三菱電機株式会社 | Air conditioning device |
| CN202835949U (en)* | 2012-08-28 | 2013-03-27 | 广东美的电器股份有限公司 | Novel multiple on-line air conditioning system |
| CN102914027B (en)* | 2012-09-20 | 2015-01-21 | 宁波奥克斯电气有限公司 | Control method for preventing refrigerant of outdoor unit from bias flowing during refrigeration of multi-split air-conditioning unit |
| JP5802840B2 (en)* | 2012-09-21 | 2015-11-04 | 東芝キヤリア株式会社 | Outdoor unit of multi-type air conditioner |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100557348C (en)* | 2003-10-17 | 2009-11-04 | Lg电子株式会社 | Apparatus and method for controlling superheat in a heat pump system |
| CN102109203A (en)* | 2011-03-15 | 2011-06-29 | 广东美的电器股份有限公司 | Water source heat pump three-tube type heat recovery multi-online air conditioning system |
| Publication number | Publication date |
|---|---|
| CN104456731A (en) | 2015-03-25 |
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