WO2020056943A1 - Evaporative condensing unit and control method therefor - Google Patents

Evaporative condensing unit and control method therefor Download PDF

Info

Publication number
WO2020056943A1
WO2020056943A1 PCT/CN2018/121023 CN2018121023W WO2020056943A1 WO 2020056943 A1 WO2020056943 A1 WO 2020056943A1 CN 2018121023 W CN2018121023 W CN 2018121023W WO 2020056943 A1 WO2020056943 A1 WO 2020056943A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchange
side heat
outdoor
valve
exchange pipe
Prior art date
Application number
PCT/CN2018/121023
Other languages
French (fr)
Chinese (zh)
Inventor
卓明胜
覃业星
陈培生
程琦
黄凯亮
Original Assignee
珠海格力电器股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201811099398.3 priority Critical
Priority to CN201811099398.3A priority patent/CN108954898A/en
Application filed by 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Publication of WO2020056943A1 publication Critical patent/WO2020056943A1/en

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00Compression machines, plants or systems, with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/40Fluid line arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems

Abstract

An evaporative condensing unit and a control method therefor. The evaporative condensing unit comprises: an indoor heat exchange pipe (20) comprising a compressor (21) and an indoor heat exchange unit (22) communicated with the compressor (21) by means of a pipe; a first outdoor heat exchange pipe (40) comprising a first outdoor heat exchange unit (41); and a second outdoor heat exchange pipe (60) comprising a second outdoor heat exchange unit (61). The indoor heat exchange pipe (20) is selectively communicated with the first outdoor heat exchange pipe (40) to form a refrigerating loop or with the second outdoor heat exchange pipe (60) to form a heating loop. According to the evaporative condensing unit above, a refrigerating loop and a heating loop different in route are employed for a refrigerating mode and a heating mode. This is different from the prior art in which one loop is shared by the two modes. Therefore, different advantages of the first outdoor heat exchange pipe (40) and the second outdoor heat exchange pipe (60) can be utilized separately, thereby solving the problem in a conventional evaporative condensing unit of being unable to achieve both good refrigerating effect and good heating effect. Said evaporative condensing unit has both good refrigerating effect and good heating effect.

Description

蒸发冷凝机组及其控制方法Evaporative condensation unit and control method thereof
相关申请Related applications
本申请要求2018年09月20日申请的,申请号为201811099398.3,名称为“蒸发冷凝机组及其控制方法”的中国专利申请的优先权,在此将其全文引入作为参考。This application claims priority from a Chinese patent application filed on September 20, 2018 with an application number of 201811099398.3, entitled "Evaporative Condensing Unit and Control Method", which is hereby incorporated by reference in its entirety.
技术领域Technical field
本申请涉及热交换设备领域,特别是涉及一种蒸发冷凝机组及其控制方法。The present application relates to the field of heat exchange equipment, and in particular, to an evaporative condensing unit and a control method thereof.
背景技术Background technique
蒸发式冷却技术作为一种利用流体沸腾时的汽化潜热的制冷新技术,在近些年一直得到不断发展,根据蒸发冷却技术制造的蒸发冷凝机组在各个领域有着越来越广泛的应用前景。由于流体的汽化潜热比流体的比热大很多,因此蒸发冷凝机组的蒸发冷却的冷却效果非常显著。Evaporative cooling technology, as a new refrigeration technology that utilizes the latent heat of vaporization when fluids boil, has been continuously developed in recent years. Evaporative condensing units manufactured according to evaporative cooling technology have increasingly broad application prospects in various fields. Since the latent heat of vaporization of the fluid is much larger than the specific heat of the fluid, the cooling effect of the evaporative cooling of the evaporative condensing unit is very significant.
目前的蒸发冷凝机组中,室外侧换热装置在制冷模式中为冷凝器,在制热模式中为蒸发器。当室外侧换热器为冷凝器时,有着冷凝温度低、换热效果显著等特点,从而使蒸发冷凝机组具有较高的制冷效率。然而与此同时,室外侧换热装置作为蒸发器使用时,由于结构缺陷,导致蒸发换热效果不佳,从而导致蒸发冷凝机组制热运行能力不足,难以在具有良好的制冷效果的同时达到良好的制热效果。In current evaporative condensing units, the outdoor heat exchange device is a condenser in a cooling mode and an evaporator in a heating mode. When the outdoor heat exchanger is a condenser, it has the characteristics of low condensation temperature and significant heat exchange effect, so that the evaporative condensing unit has higher cooling efficiency. However, at the same time, when the outdoor heat exchange device is used as an evaporator, due to structural defects, the evaporation heat exchange effect is not good, resulting in insufficient heating operation capacity of the evaporative condensing unit, and it is difficult to achieve a good cooling effect while achieving good results. Heating effect.
发明内容Summary of the Invention
根据本申请的各种实施例,提供一种同时兼具良好的制热效果与制冷效果的蒸发冷凝机组及其控制方法。According to various embodiments of the present application, an evaporative condensing unit having a good heating effect and a cooling effect at the same time and a control method thereof are provided.
一种蒸发冷凝机组,所述蒸发冷凝机组包括:An evaporative condensation unit includes:
室内侧换热管路,包括压缩机及与所述压缩机通过管道连通的室内侧换热单元;The indoor-side heat exchange pipeline includes a compressor and an indoor-side heat exchange unit that communicates with the compressor through a pipeline;
第一室外侧换热管路,包括第一室外侧换热单元;以及A first outdoor-side heat exchange pipeline, including a first outdoor-side heat exchange unit; and
第二室外侧换热管路,包括第二室外侧换热单元;A second outdoor-side heat exchange pipeline, including a second outdoor-side heat exchange unit;
其中,所述室内侧换热管路可选择地与所述第一室外侧换热管路连通形成制冷回路,或与所述第二室外侧换热管路连通形成制热回路。Wherein, the indoor-side heat exchange pipeline may optionally communicate with the first outdoor-side heat exchange pipeline to form a refrigeration circuit, or communicate with the second outdoor-side heat exchange pipeline to form a heating circuit.
上述蒸发冷凝机组,由于其制冷模式与制热模式采用了路径不同的制冷回路与制热回 路,而不同于传统技术中共用一条回路,因此可分别利用第一室外侧换热管路与第二室外侧换热管路的不同优势,解决了传统蒸发冷凝机组无法兼具良好的制冷效果与制热效果的缺陷,使蒸发冷凝机组同时具备良好的制冷效果与制热效果。The above evaporative condensing unit adopts a refrigerating circuit and a heating circuit with different paths in its cooling mode and heating mode, which is different from the common circuit in the traditional technology. Therefore, the first outdoor-side heat exchange pipe and the second The different advantages of outdoor-side heat exchange pipes solve the defect that traditional evaporative condensing units cannot have both good cooling and heating effects, so that evaporative condensing units have both good cooling and heating effects.
一种蒸发冷凝机组的控制方法,所述蒸发冷凝机组的控制方法包括以下步骤:A control method of an evaporative condensing unit. The control method of the evaporative condensing unit includes the following steps:
获取控制信号;Obtaining control signals;
当所述控制信号为制冷模式信号时,所述室内侧换热管路与所述第一室外侧换热管路连通;When the control signal is a cooling mode signal, the indoor-side heat exchange pipe is in communication with the first outdoor-side heat exchange pipe;
当所述控制信号为制热模式信号时,所述室内侧换热管路与所述第二室外侧换热管路连通。When the control signal is a heating mode signal, the indoor-side heat exchange pipe is in communication with the second outdoor-side heat exchange pipe.
在其中一实施例中,所述蒸发冷凝机组还包括四通阀,所述四通阀可在第一连通状态与第二连通状态之间切换;当所述控制信号为制热模式信号时,所述室内侧换热管路与所述第二室外侧换热管路连通的步骤具体包括以下步骤:In one embodiment, the evaporative condensing unit further includes a four-way valve, and the four-way valve can be switched between a first communication state and a second communication state; when the control signal is a heating mode signal, The step of communicating the indoor-side heat exchange pipeline with the second outdoor-side heat exchange pipeline specifically includes the following steps:
当所述控制信号为制热模式信号时,所述四通阀处于所述第一连通状态,所述室内侧换热管路与所述第一室外侧换热管路通过所述四通阀连通,并获取所述压缩机的吸气端与排气端的压力差值;When the control signal is a heating mode signal, the four-way valve is in the first communication state, and the indoor-side heat exchange pipe and the first outdoor-side heat exchange pipe pass through the four-way valve Communicate with and obtain the pressure difference between the suction end and the exhaust end of the compressor;
当所述压缩机的所述吸气端与所述排气端的压力差值大于或等于所述四通阀的换向压力差值后,所述四通阀处于所述第二连通状态,所述室内侧换热管路与所述第二室外侧换热管路通过所述四通阀连通。When the pressure difference between the suction end and the discharge end of the compressor is greater than or equal to the reversing pressure difference of the four-way valve, the four-way valve is in the second communication state, so The indoor-side heat exchange pipeline and the second outdoor-side heat exchange pipeline communicate with each other through the four-way valve.
在其中一实施例中,所述第一室外侧换热管路包括第一阀门与第二阀门,所述第二室外侧换热管路包括第三阀门与第四阀门;In one embodiment, the first outdoor-side heat exchange pipeline includes a first valve and a second valve, and the second outdoor-side heat exchange pipeline includes a third valve and a fourth valve;
当所述室内侧换热管路与所述第一室外侧换热管路连通时,所述第一阀门与所述第二阀门处于开启状态,所述第三阀门与所述第四阀门处于断开状态;When the indoor-side heat exchange pipeline is in communication with the first outdoor-side heat exchange pipeline, the first valve and the second valve are in an open state, and the third valve and the fourth valve are in an open state. Disconnected state
当所述室内侧换热管路与所述第二室外侧换热管路连通时,所述第一阀门与所述第二阀门处于断开状态,所述第三阀门与所述第四阀门处于开启状态。When the indoor-side heat exchange pipeline is in communication with the second outdoor-side heat exchange pipeline, the first valve and the second valve are in a disconnected state, and the third valve and the fourth valve are in a disconnected state. Is on.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为根据本申请的一个或多个实施例的蒸发冷凝机组处于制冷模式时的结构示意图;FIG. 1 is a schematic structural diagram of an evaporative condensing unit in a cooling mode according to one or more embodiments of the present application; FIG.
图2为根据本申请的一个或多个实施例的蒸发冷凝机组处于制热模式时的结构示意图;2 is a schematic structural diagram of an evaporative condensing unit in a heating mode according to one or more embodiments of the present application;
图3为根据本申请的一个或多个实施例的蒸发冷凝机组的控制方法的流程图。FIG. 3 is a flowchart of a method for controlling an evaporative condensing unit according to one or more embodiments of the present application.
具体实施方式detailed description
为了便于理解本申请,下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的较佳实施例。但是,本申请可以以许多不同的形式来实现,并不限于本文所描述的实施例。相反地,提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。In order to facilitate understanding of the present application, the present application will be described more fully with reference to the related drawings. The drawings show a preferred embodiment of the present application. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and comprehensive understanding of the disclosure of this application.
需要说明的是,当元件被称为“固定于”另一个元件,它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件,它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的。It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be a centered element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
除非另有定义,本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本申请。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of the present application is only for the purpose of describing specific embodiments, and is not intended to limit the present application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
如图1及图2所示,本申请的实施例的一种蒸发冷凝机组100,该蒸发冷凝机组100具有制冷模式与制热模式,从而实现制冷与制热功能。As shown in FIG. 1 and FIG. 2, an evaporative condensing unit 100 according to an embodiment of the present application. The evaporative condensing unit 100 has a cooling mode and a heating mode, thereby realizing the cooling and heating functions.
具体地,蒸发冷凝机组100包括室内侧换热管路20、第一室外侧换热管路40以及第二室外侧换热管路60。当蒸发冷凝机组100处于制冷模式时,室内侧换热管路20与第一室外侧换热管路40连通形成制冷回路,制冷剂在制冷回路中不断循环以进行热量交换。当蒸发冷凝机组100处于制热模式时,室内侧换热管路20与第二室外侧换热管路60连通形成制热回路,制冷剂在制热回路中不断循环以进行热量交换。Specifically, the evaporative condensing unit 100 includes an indoor-side heat exchange pipe 20, a first outdoor-side heat exchange pipe 40, and a second outdoor-side heat exchange pipe 60. When the evaporative condensing unit 100 is in a cooling mode, the indoor-side heat exchange pipe 20 communicates with the first outdoor-side heat exchange pipe 40 to form a refrigeration circuit, and the refrigerant continuously circulates in the refrigeration circuit for heat exchange. When the evaporative condensing unit 100 is in a heating mode, the indoor-side heat exchange pipe 20 communicates with the second outdoor-side heat exchange pipe 60 to form a heating circuit, and the refrigerant continuously circulates in the heating circuit for heat exchange.
如此,可分别利用第一室外侧换热管路40与第二室外侧换热管路60的不同特性,解决了传统蒸发冷凝机组100因为采用相同管路形成制热回路与制冷回路而无法兼具良好的制冷效果与制热效果的缺陷,使蒸发冷凝机组100同时具备良好的制冷效果与制热效果。In this way, the different characteristics of the first outdoor-side heat exchange pipe 40 and the second outdoor-side heat exchange pipe 60 can be used, respectively, and it is solved that the traditional evaporative condensing unit 100 cannot use both pipes to form a heating circuit and a refrigeration circuit and cannot combine both. The shortcomings of good cooling effect and heating effect make the evaporative condensing unit 100 have both good cooling effect and heating effect.
请继续参阅图1及图2,室内侧换热管路20包括压缩机21、室内热侧换单元、节流单元23以及四通阀24。Please continue to refer to FIGS. 1 and 2. The indoor-side heat exchange pipeline 20 includes a compressor 21, an indoor hot-side replacement unit, a throttle unit 23, and a four-way valve 24.
其中,压缩机21用于压缩气态制冷剂,包括相互连通的吸气端与排气端。室内侧换热单元22为壳管换热器,制冷剂可在室内侧换热单元22内与室内侧空气进行热量交换,从而对室内侧空气进行制冷或制热。节流单元23通过管道连通于室内侧换热单元22一端,节流单元23可以为电子膨胀阀或者热力膨胀阀,用于对制冷剂进行节流降压。四通阀24具有可任意切换的第一连通状态与第二连通状态,以连通室内侧换热管路20与第一室内 侧换热管路20或连通室内侧换热管路20以第二室外侧换热单元61,从而控制制冷剂的流动方向。The compressor 21 is used to compress a gaseous refrigerant, and includes a suction end and a discharge end which are in communication with each other. The indoor-side heat exchange unit 22 is a shell-and-tube heat exchanger. The refrigerant can exchange heat with the indoor-side air in the indoor-side heat-exchange unit 22, thereby cooling or heating the indoor-side air. The throttling unit 23 is connected to one end of the indoor heat exchange unit 22 through a pipe. The throttling unit 23 may be an electronic expansion valve or a thermal expansion valve for throttling and reducing the pressure of the refrigerant. The four-way valve 24 has a first communication state and a second communication state that can be arbitrarily switched to communicate the indoor-side heat exchange pipe 20 with the first indoor-side heat exchange pipe 20 or to communicate the indoor-side heat exchange pipe 20 to the second The outdoor heat exchange unit 61 controls the flow direction of the refrigerant.
具体在一实施例中,四通阀24包括可选择地相互连通的第一阀口、第二阀口、第三阀口以及第四阀口。压缩机21的排气端与第一阀口通过管道连通,第一室外侧换热管路40及第二室外侧换热管路60通过管道并联于第二阀口,第三阀口与压缩机21的吸气端通过管道连通,第四阀口与室内侧换热单元22通过管道连通。当四通阀24处于第一连通状态时,第一阀口与第二阀口连通,第三阀口与第四阀口连通。当四通阀24处于第二连通状态时,第一阀口与第四阀口连通,第二阀口与第三阀口连通。Specifically, in an embodiment, the four-way valve 24 includes a first valve port, a second valve port, a third valve port, and a fourth valve port that are selectively communicated with each other. The exhaust end of the compressor 21 communicates with the first valve port through a pipeline. The first outdoor-side heat exchange pipe 40 and the second outdoor-side heat exchange pipe 60 are connected in parallel to the second valve port through a pipe. The third valve port is connected to the compression port. The suction end of the machine 21 is communicated through a pipe, and the fourth valve port is communicated with the indoor-side heat exchange unit 22 through a pipe. When the four-way valve 24 is in the first communication state, the first valve port is in communication with the second valve port, and the third valve port is in communication with the fourth valve port. When the four-way valve 24 is in the second communication state, the first valve port is in communication with the fourth valve port, and the second valve port is in communication with the third valve port.
由于四通阀24的换向(即第一连通状态与第二连通状态切换)的基本条件是压缩机21的排气端与吸气端的压力差值等于或大于四通阀24的换向压力差值(即四通阀24的内部换向摩擦阻力)。因此在一些实施例中,蒸发冷凝机组100还包括第一压力传感器25与第二压力传感器26,第一压力传感器25通过管道连通压缩机21的排气端以获取排气端的压力值,第二压力传感器26通过管道连通压缩机21的吸气端以获取吸气端的压力值,然后计算压缩机21的排气端与吸气端的压力差值。The basic condition for the reversing of the four-way valve 24 (that is, the first communication state and the second communication state is switched) is that the pressure difference between the exhaust end and the suction end of the compressor 21 is equal to or greater than the reversing pressure of the four-way valve 24 The difference (that is, the internal commutation friction resistance of the four-way valve 24). Therefore, in some embodiments, the evaporative condensing unit 100 further includes a first pressure sensor 25 and a second pressure sensor 26. The first pressure sensor 25 communicates with the exhaust end of the compressor 21 through a pipe to obtain a pressure value at the exhaust end. The pressure sensor 26 communicates with the suction end of the compressor 21 through a pipe to obtain the pressure value of the suction end, and then calculates the pressure difference between the discharge end and the suction end of the compressor 21.
当压缩机21的排气端与吸气端的压力差值小于四通阀24的换向压力差值时,四通阀24断电而处于第一连通状态。当压缩机21的排气端与吸气端的压力差值等于或大于四通阀24的换向压力差值时,四通阀24得电并在换向压力的作用下由第一连通状态切换至第二连通状态。When the pressure difference between the exhaust end and the suction end of the compressor 21 is less than the commutation pressure difference between the four-way valve 24, the four-way valve 24 is powered off and is in the first communication state. When the pressure difference between the discharge end and the suction end of the compressor 21 is equal to or greater than the reversing pressure difference of the four-way valve 24, the four-way valve 24 is powered and switched from the first communication state under the effect of the reversing pressure. To the second connected state.
第一室外侧换热管路40包括第一室外侧换热单元41、第一阀门43以及第二阀门45。其中,第一阀门43通过管道连通第一室外侧换热单元41的进口端,第二阀门45通过管道连通第一室外侧换热单元41的出口端。第一室外侧换热单元41在制冷模式中作为冷凝器,制冷剂可在第一室外侧换热单元41中放热冷凝。第一阀门43与第二阀门45则起到控制第一室外侧换热管路40的通断的作用。The first outdoor-side heat exchange line 40 includes a first outdoor-side heat exchange unit 41, a first valve 43, and a second valve 45. The first valve 43 is connected to the inlet end of the first outdoor-side heat exchange unit 41 through a pipe, and the second valve 45 is connected to the outlet end of the first outdoor-side heat exchange unit 41 through a pipe. The first outdoor-side heat exchange unit 41 functions as a condenser in a cooling mode, and the refrigerant can release heat and condense in the first outdoor-side heat exchange unit 41. The first valve 43 and the second valve 45 control the opening and closing of the first outdoor-side heat exchange pipe 40.
具体在一实施例中,第一室外侧换热单元41为蒸发式冷凝器,当蒸发冷凝机组100处于制冷模式时,蒸发式冷凝器作为冷凝器使用,有着冷凝温度低、换热效果显著等效果,因此制冷回路具有较高的制冷效率。而由于如果蒸发式冷凝器在制热回路中作为蒸发器使用,受限于蒸发式冷凝器紧凑的模块化设计,以及其使用开式循环水系统的影响,循环水温难以得到有效控制,将导致蒸发式换热器作为蒸发器时的换热效果不明显。因此在本申请中,第一室外侧换热单元41仅在制冷模式下使用。Specifically, in an embodiment, the first outdoor-side heat exchange unit 41 is an evaporative condenser. When the evaporative condensing unit 100 is in a cooling mode, the evaporative condenser is used as a condenser, which has a low condensation temperature and a significant heat exchange effect. Effect, so the refrigeration circuit has higher refrigeration efficiency. However, if the evaporative condenser is used as an evaporator in a heating circuit, it is limited by the compact modular design of the evaporative condenser and the effect of using an open-type circulating water system, and it is difficult to effectively control the circulating water temperature, which will result in When the evaporative heat exchanger is used as an evaporator, the heat exchange effect is not obvious. Therefore, in this application, the first outdoor-side heat exchange unit 41 is used only in the cooling mode.
第一阀门43为电动蝶阀,以使四通阀24与第一室外侧换热管路40之间断开或贯通,并可调节进入第一室外侧换热单元41的制冷剂的流量。第二阀门45为电磁阀,以使第一 室外侧换热单元41与节流单元23之间断开或贯通。The first valve 43 is an electric butterfly valve, so that the four-way valve 24 and the first outdoor-side heat exchange pipe 40 are disconnected or penetrated, and the flow rate of the refrigerant entering the first outdoor-side heat exchange unit 41 can be adjusted. The second valve 45 is a solenoid valve so that the first outdoor-side heat exchange unit 41 and the throttle unit 23 are disconnected or penetrated.
如此,当蒸发冷凝机组100处于制冷模式时,第一阀门43与第二阀门45呈开启状态,因此制冷剂可从第一室外侧换热单元41流过。当蒸发冷凝机组100处于制热模式时,第一阀门43与第二阀门45呈关闭状态,因此制冷剂无法进入第一室外侧换热单元41。In this way, when the evaporative condensing unit 100 is in the cooling mode, the first valve 43 and the second valve 45 are opened, so that the refrigerant can flow through the first outdoor-side heat exchange unit 41. When the evaporative condensing unit 100 is in the heating mode, the first valve 43 and the second valve 45 are closed, so the refrigerant cannot enter the first outdoor-side heat exchange unit 41.
第二室外侧换热管路60包括第二室外侧换热单元61、第三阀门63以及第四阀门65。其中,第三阀门63通过管道连通第二室外侧换热单元61的进口端,第四阀门65通过管道连通第二室外侧换热单元61的出口端。第二室外侧换热单元61在制冷模式中作为蒸发器,制冷剂可在第二室外侧换热单元61中吸热蒸发。第三阀门63与第四阀门65则起到控制第二室外侧换热管路60的通断的作用。The second outdoor-side heat exchange line 60 includes a second outdoor-side heat exchange unit 61, a third valve 63, and a fourth valve 65. The third valve 63 communicates with the inlet end of the second outdoor heat exchange unit 61 through a pipe, and the fourth valve 65 communicates with the outlet end of the second outdoor heat exchange unit 61 through a pipe. The second outdoor heat exchange unit 61 functions as an evaporator in a cooling mode, and the refrigerant can absorb heat and evaporate in the second outdoor heat exchange unit 61. The third valve 63 and the fourth valve 65 control the opening and closing of the second outdoor heat exchange pipe 60.
当蒸发冷凝机组100处于制冷模式时,第三阀门63与第四阀门65呈开启状态,因此制冷剂可从第二室外侧换热单元61流过。当蒸发冷凝机组100处于制热模式时,第三阀门63与第四阀门65呈关闭状态,因此制冷剂无法进入第二室外侧换热单元61。When the evaporative condensing unit 100 is in the cooling mode, the third valve 63 and the fourth valve 65 are in an open state, so the refrigerant can flow through the second outdoor-side heat exchange unit 61. When the evaporative condensing unit 100 is in the heating mode, the third valve 63 and the fourth valve 65 are in a closed state, so the refrigerant cannot enter the second outdoor-side heat exchange unit 61.
具体在一些实施例中,第二室外侧换热单元61为翅片蒸发器或壳管换热器。因此当蒸发冷凝机组100处于制热模式时,由翅片蒸发器形成的第二室外侧换热单元61作为蒸发器使用,有效增加了换热效率,并可利用风机加强换热,致使制热效果显著增加。Specifically, in some embodiments, the second outdoor heat exchange unit 61 is a finned evaporator or a shell and tube heat exchanger. Therefore, when the evaporative condensing unit 100 is in a heating mode, the second outdoor heat exchange unit 61 formed by a finned evaporator is used as an evaporator, which effectively increases the heat exchange efficiency, and can use a fan to enhance heat exchange, resulting in heating The effect is significantly increased.
综上所述,当蒸发冷凝机组100处于制冷模式时,第一阀门43与第二阀门45呈开放状态,第三阀门63与第四阀门65呈断开状态,四通阀24处于第一连通状态,四通阀24的第一阀口与第二阀口连通,第三阀口与第四阀口连通。如此,压缩机21的排气端、四通阀24的第一阀口、四通阀24的第二阀口、第一阀门43、第一室外侧换热单元41、第二阀门45、室内侧换热单元22、节流单元23、四通阀24的第四阀口、四通阀24的第三阀口、压缩机21的吸气端依次连通形成制冷回路。In summary, when the evaporative condensing unit 100 is in the cooling mode, the first valve 43 and the second valve 45 are open, the third valve 63 and the fourth valve 65 are open, and the four-way valve 24 is in first communication. In a state, the first valve port of the four-way valve 24 is in communication with the second valve port, and the third valve port is in communication with the fourth valve port. In this way, the exhaust side of the compressor 21, the first port of the four-way valve 24, the second port of the four-way valve 24, the first valve 43, the first outdoor-side heat exchange unit 41, the second valve 45, and the indoor The side heat exchange unit 22, the throttling unit 23, the fourth valve port of the four-way valve 24, the third valve port of the four-way valve 24, and the suction end of the compressor 21 are sequentially connected to form a refrigeration circuit.
当蒸发冷凝机组100处于制热模式时,第三阀门63与第四阀门65呈开放状态,第一阀门43与第二阀门45呈断开状态,四通阀24处于第二连通状态,四通阀24的第一阀口与第四阀口连通,第二阀口与第三阀口连通。如此,压缩机21的排气端、四通阀24的第一阀口、四通阀24的第四阀口、室内侧换热单元22、节流单元23、第三阀门63、第二室外侧换热单元61、第四阀门65、四通阀24的第二阀口、四通阀24的第三阀口、压缩机21的吸气端依次连通形成制热回路。When the evaporative condensing unit 100 is in the heating mode, the third valve 63 and the fourth valve 65 are in an open state, the first valve 43 and the second valve 45 are in an off state, and the four-way valve 24 is in a second communication state. The first valve port of the valve 24 is in communication with the fourth valve port, and the second valve port is in communication with the third valve port. In this way, the exhaust end of the compressor 21, the first port of the four-way valve 24, the fourth port of the four-way valve 24, the indoor heat exchange unit 22, the throttle unit 23, the third valve 63, and the second chamber The outer heat exchange unit 61, the fourth valve 65, the second valve port of the four-way valve 24, the third valve port of the four-way valve 24, and the suction end of the compressor 21 are sequentially connected to form a heating circuit.
上述蒸发冷凝机组100的控制方法包括以下步骤:The control method of the evaporative condensing unit 100 includes the following steps:
S110:获取控制信号。S110: Obtain a control signal.
具体地,控制信号包括制冷模式信号与制热模式信号,从而控制蒸发冷凝机组100处于制冷模式或制热模式。Specifically, the control signal includes a cooling mode signal and a heating mode signal, so as to control the evaporative condensing unit 100 to be in a cooling mode or a heating mode.
S120:当控制信号为制冷模式信号时,室内侧换热管路20与第一室外侧换热管路40连通。S120: When the control signal is a cooling mode signal, the indoor-side heat exchange pipe 20 communicates with the first outdoor-side heat exchange pipe 40.
具体地,当蒸发冷凝机组100获取制冷模式信号而处于制冷模式时,四通阀24断电并处于第一连通状态,第一室外侧换热管路40的第一阀门43与第二阀门45处于开启状态,第二室外侧换热管路60的第三阀门63与第四阀门65处于断开状态,因此室内侧换热管路20与第一室外侧换热管路40连通形成制冷回路。Specifically, when the evaporative condensing unit 100 obtains a cooling mode signal and is in a cooling mode, the four-way valve 24 is powered off and in a first communication state, and the first valve 43 and the second valve 45 of the first outdoor-side heat exchange pipe 40 In the opened state, the third valve 63 and the fourth valve 65 of the second outdoor-side heat exchange pipe 60 are in an open state. Therefore, the indoor-side heat exchange pipe 20 communicates with the first outdoor-side heat exchange pipe 40 to form a refrigeration circuit. .
压缩机21将低温低压的气态制冷剂压缩为高温高压的气态制冷剂,高温高压的气态制冷剂通过呈开启状态的第一阀门43进入第一室外侧换热单元41,在第一室外侧换热单元41中放热形成液态制冷剂,液态制冷剂从呈开启状态的第二阀门45流出后,经过节流单元23的节流降压后进入室内侧换热单元22,在室内侧换热单元22中吸收室内空气的热量而蒸发气化,从而实现对室内空气的制冷功能。气态制冷剂最后经过四通阀24的第四阀口与第三阀口,回到压缩机21的吸气端。可以理解,上述过程可不断循环进行,从而使蒸发冷凝机组100持续处于制冷工作中。The compressor 21 compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant enters the first outdoor-side heat exchange unit 41 through the first valve 43 in an opened state, and is changed on the first outdoor side. The heat generated in the heat unit 41 forms a liquid refrigerant. After the liquid refrigerant flows out from the second valve 45 in an opened state, it passes through the throttling and pressure reduction of the throttling unit 23 and enters the indoor-side heat exchange unit 22 to exchange heat on the indoor side. The unit 22 absorbs the heat of the indoor air to evaporate and vaporize, thereby achieving a cooling function of the indoor air. The gaseous refrigerant finally passes through the fourth valve port and the third valve port of the four-way valve 24 and returns to the suction end of the compressor 21. It can be understood that the above process can be performed continuously, so that the evaporative condensing unit 100 is continuously in the refrigeration work.
S130:当控制信号为制热模式信号时,室内侧换热管路20与第二室外侧换热管路60连通。S130: When the control signal is a heating mode signal, the indoor-side heat exchange pipe 20 communicates with the second outdoor-side heat exchange pipe 60.
由于四通阀24的换向的基本条件是压缩机21的排气端与吸气端的压力差值等于或大于四通阀24的换向压力差值(即四通阀24的内部换向摩擦阻力),因此当蒸发冷凝机组100获取当控制信号为制热模式开机信号后,蒸发冷凝机组100首先以制冷模式运行,从而使压缩机21的排气端与吸气端的压力差值不断升高,然后再以制热模式运行。因此,上述步骤S130具体包括以下步骤:The basic condition of the reversing of the four-way valve 24 is that the pressure difference between the exhaust end and the suction end of the compressor 21 is equal to or greater than the reversing pressure difference of the four-way valve 24 (that is, the internal reversing friction of the four-way valve 24 Resistance), so when the evaporative condensing unit 100 obtains when the control signal is the heating mode start-up signal, the evaporative condensing unit 100 first runs in the cooling mode, so that the pressure difference between the exhaust end and the suction end of the compressor 21 increases continuously. , And then run in heating mode. Therefore, the above step S130 specifically includes the following steps:
S131:当控制信号为制热模式信号时,四通阀24处于第一连通状态,室内侧换热管路20与第一室外侧换热管路40通过四通阀24连通,并获取压缩机21的吸气端与排气端的压力差值。S131: When the control signal is a heating mode signal, the four-way valve 24 is in the first communication state, the indoor-side heat exchange pipe 20 and the first outdoor-side heat exchange pipe 40 are communicated through the four-way valve 24, and the compressor is obtained. 21 The pressure difference between the suction end and the exhaust end.
具体地,当控制信号为制热模式信号时,蒸发冷凝机组100首先依然以制冷模式运行以提高压缩机21的吸气端与排气端的压力差值,同时通过第一压力传感器25与第二压力传感器26实时获取压缩机21的吸气端与排气端的压力值,然后计算得到压缩机21的吸气端与排气端的压力差值。Specifically, when the control signal is a heating mode signal, the evaporative condensing unit 100 still first operates in a cooling mode to increase the pressure difference between the suction end and the exhaust end of the compressor 21, and simultaneously passes the first pressure sensor 25 and the second The pressure sensor 26 obtains the pressure values of the suction end and the discharge end of the compressor 21 in real time, and then calculates the pressure difference between the suction end and the discharge end of the compressor 21.
S133:当压缩机21的吸气端与排气端的压力差值大于或等于四通阀24的换向压力差值后,四通阀24处于第二连通状态,室内侧换热管路20与第二室外侧换热管路60通过四通阀24连通。S133: When the pressure difference between the suction end and the exhaust end of the compressor 21 is greater than or equal to the reversing pressure difference between the four-way valve 24, the four-way valve 24 is in the second communication state, and the indoor heat exchange pipe 20 and the The second outdoor-side heat exchange pipe 60 is communicated through a four-way valve 24.
在一实施例中,当蒸发冷凝机组100由制冷模式切换至制热模式后,蒸发冷凝机组100 也继续处于制冷模式中,直至压缩机21的吸气端与排气端的压力差值大于或等于四通阀24的换向压力差值后,四通阀24处于得电状态而在换向压力作用下切换至第二连通状态,第一阀门43处于开启状态,第二阀门45处于断开状态,压缩机21、室内侧换热单元22与第一室外侧换热单元41依次通过管道连通。而如果压缩机21的吸气端与排气端的压力差值小于四通阀24的换向压力差值,则即使四通阀24处于得电状态,但由于缺少足够的换向压力推动,无法正常换向。In one embodiment, after the evaporative condensing unit 100 is switched from the cooling mode to the heating mode, the evaporative condensing unit 100 also continues to be in the cooling mode until the pressure difference between the suction end and the exhaust end of the compressor 21 is greater than or equal to After the reversing pressure difference of the four-way valve 24, the four-way valve 24 is in the energized state and is switched to the second communication state under the effect of the reversing pressure. The first valve 43 is in the open state and the second valve 45 is in the disconnected state. The compressor 21, the indoor-side heat exchange unit 22, and the first outdoor-side heat exchange unit 41 are sequentially communicated through pipes. And if the pressure difference between the suction end and the exhaust end of the compressor 21 is smaller than the reversing pressure difference of the four-way valve 24, even if the four-way valve 24 is in the energized state, it cannot be pushed due to the lack of sufficient reversing pressure. Normal commutation.
当蒸发冷凝机组100处于制热模式时,四通阀24的第一阀口与第四阀口连通,第二阀口与第三阀口连通。压缩机21将低温低压的气态制冷剂压缩为高温高压的气态制冷剂,高温高压的气态制冷剂通过呈开启状态的第三阀门63进入室内侧换热单元22,在室内侧换热单元22中放热形成液态的制冷剂而实现制热功能,液态制冷剂通过呈开启状态的第四阀门65流出,经过节流单元23的节流降压后进入第二室外侧换热单元61,在第二室外侧换热单元61中吸热而蒸发气化。气态制冷剂最后经过四通阀24的第二阀口与第三阀口,最后回到压缩机21的吸气端。When the evaporative condensing unit 100 is in a heating mode, the first valve port of the four-way valve 24 is in communication with the fourth valve port, and the second valve port is in communication with the third valve port. The compressor 21 compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant enters the indoor-side heat exchange unit 22 through the third valve 63 in an opened state. Exhaust heat forms a liquid refrigerant to realize the heating function. The liquid refrigerant flows out through the fourth valve 65 in an open state, passes through the throttling and reducing pressure of the throttling unit 23, and enters the second outdoor-side heat exchange unit 61. The two outdoor heat exchange units 61 absorb heat and evaporate. The gaseous refrigerant finally passes through the second and third valve ports of the four-way valve 24 and finally returns to the suction end of the compressor 21.
上述蒸发冷凝机组100及其控制方法,由于采用了结构不同的第一室外侧换热单元41与第二室外侧换热单元61形成不同的制冷回路与制热回路。因此无需第一室外侧换热单元41或第二室外侧换热单元61在不同模式中作为蒸发器或冷凝器使用,整合了第一室外侧换热单元41与第二室外侧换热单元61各自的优势,保证该蒸发冷凝机组100在制冷模式与制热模式中均具有较高的换热效率,达到良好的制冷或制热效果,且压缩机21一直在合理范围内运行而延长了压缩机21的寿命。而且,通过压力传感器检测压缩机21的排气端与吸气端的压力差值使制冷回路与制热回路灵活准确切换,具有较高的工作可靠性。The above-mentioned evaporative condensing unit 100 and the control method thereof use the first outdoor-side heat exchange unit 41 and the second outdoor-side heat exchange unit 61 having different structures to form different refrigeration circuits and heating circuits. Therefore, the first outdoor heat exchange unit 41 or the second outdoor heat exchange unit 61 is not required to be used as an evaporator or a condenser in different modes, and the first outdoor heat exchange unit 41 and the second outdoor heat exchange unit 61 are integrated. Their respective advantages ensure that the evaporative condensing unit 100 has high heat exchange efficiency in both cooling mode and heating mode, achieving good cooling or heating effects, and the compressor 21 has been operating within a reasonable range to extend the compression. The life of the machine 21. In addition, the pressure difference between the exhaust end and the suction end of the compressor 21 is detected by a pressure sensor, so that the refrigeration circuit and the heating circuit can be flexibly and accurately switched, and has high working reliability.
以上所述实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。The technical features of the embodiments described above can be arbitrarily combined. In order to simplify the description, all possible combinations of the technical features in the above embodiments have not been described. However, as long as there is no contradiction in the combination of these technical features, It should be considered as the scope described in this specification.
以上所述实施例仅表达了本申请的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本申请构思的前提下,还可以做出若干变形和改进,这些都属于本申请的保护范围。因此,本申请专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation manners of the present application, and their descriptions are more specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be noted that, for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of this application patent shall be subject to the appended claims.

Claims (10)

  1. 一种蒸发冷凝机组(100),其特征在于,所述蒸发冷凝机组(100)包括:An evaporative condensation unit (100), characterized in that the evaporative condensation unit (100) includes:
    室内侧换热管路(20),包括压缩机(21)及与所述压缩机(21)通过管道连通的室内侧换热单元(22);The indoor-side heat exchange pipeline (20) includes a compressor (21) and an indoor-side heat exchange unit (22) that communicates with the compressor (21) through a pipeline;
    第一室外侧换热管路(40),包括第一室外侧换热单元(41);以及A first outdoor-side heat exchange pipe (40) including a first outdoor-side heat exchange unit (41); and
    第二室外侧换热管路(60),包括第二室外侧换热单元(61);A second outdoor-side heat exchange pipeline (60) including a second outdoor-side heat exchange unit (61);
    其中,所述室内侧换热管路(20)可选择地与所述第一室外侧换热管路(40)连通形成制冷回路,或与所述第二室外侧换热管路(60)连通形成制热回路。Wherein, the indoor-side heat exchange pipe (20) may be selectively connected to the first outdoor-side heat exchange pipe (40) to form a refrigeration circuit, or may be in communication with the second outdoor-side heat exchange pipe (60). Connected to form a heating circuit.
  2. 根据权利要求1所述的蒸发冷凝机组(100),其特征在于,所述第一室外侧换热管路(40)与所述第二室外侧换热管路(60)并联于所述室内侧换热管路(20)。The evaporative condensing unit (100) according to claim 1, wherein the first outdoor-side heat exchange pipe (40) and the second outdoor-side heat exchange pipe (60) are connected in parallel to the room Side heat exchange pipe (20).
  3. 根据权利要求1所述的蒸发冷凝机组(100),其特征在于,所述蒸发冷凝机组(100)还包括可在第一连通状态与第二连通状态之间切换的四通阀(24);The evaporative condensing unit (100) according to claim 1, characterized in that the evaporative condensing unit (100) further comprises a four-way valve (24) that can be switched between a first communication state and a second communication state;
    当所述四通阀(24)处于所述第一连通状态时,所述室内侧换热管路(20)与所述第一室外侧换热管路(40)连通;When the four-way valve (24) is in the first communication state, the indoor-side heat exchange pipe (20) communicates with the first outdoor-side heat exchange pipe (40);
    当所述四通阀(24)处于所述第二连通状态时,所述室内侧换热管路(20)与所述第二室外侧换热管路(60)连通。When the four-way valve (24) is in the second communication state, the indoor-side heat exchange pipe (20) communicates with the second outdoor-side heat exchange pipe (60).
  4. 根据权利要求1所述的蒸发冷凝机组(100),其特征在于,所述第一室外侧换热管路(40)包括第一阀门(43)与第二阀门(45),所述第一阀门(43)通过管道连通所述第一室外侧换热单元(41)的进口端,所述第二阀门(45)通过管道连通所述第一室外侧换热单元(41)的出口端。The evaporative condensing unit (100) according to claim 1, wherein the first outdoor-side heat exchange pipe (40) includes a first valve (43) and a second valve (45), and the first A valve (43) communicates with an inlet end of the first outdoor-side heat exchange unit (41) through a pipe, and the second valve (45) communicates with an outlet end of the first outdoor-side heat exchange unit (41) through a pipe.
  5. 根据权利要求1所述的蒸发冷凝机组(100),其特征在于,所述第二室外侧换热管路(60)包括第三阀门(63)与第四阀门(65),所述第三阀门(63)通过管道连通所述第二室外侧换热单元(61)的进口端,所述第四阀门(65)通过管道连通所述第二室外侧换热单元(61)的出口端。The evaporative condensing unit (100) according to claim 1, wherein the second outdoor-side heat exchange pipe (60) includes a third valve (63) and a fourth valve (65), and the third A valve (63) communicates with an inlet end of the second outdoor-side heat exchange unit (61) through a pipe, and the fourth valve (65) communicates with an outlet end of the second outdoor-side heat exchange unit (61) through a pipe.
  6. 根据权利要求1所述的蒸发冷凝机组(100),其特征在于,所述室内侧换热管路(20)还包括第一压力传感器(25)与第二压力传感器(26);所述第一压力传感器(25)通过管道连通所述压缩机(21)的排气端以获取所述排气端的压力值,所述第二压力传感器(26)通过管道连通所述压缩机(21)的吸气端以获取所述吸气端的压力值。The evaporative condensing unit (100) according to claim 1, wherein the indoor-side heat exchange pipe (20) further comprises a first pressure sensor (25) and a second pressure sensor (26); A pressure sensor (25) communicates with the exhaust end of the compressor (21) through a pipe to obtain a pressure value of the exhaust end, and the second pressure sensor (26) communicates with the compressor (21) through a pipe. The suction end to obtain the pressure value of the suction end.
  7. 根据权利要求1所述的蒸发冷凝机组(100),其特征在于,所述室内侧换热单元(22)为壳管换热器,所述第一室外侧换热单元(41)为蒸发式冷凝器,所述第二室外侧 换热单元(61)为翅片蒸发器或壳管换热器。The evaporative condensing unit (100) according to claim 1, wherein the indoor-side heat exchange unit (22) is a shell and tube heat exchanger, and the first outdoor-side heat exchange unit (41) is an evaporative type For a condenser, the second outdoor heat exchange unit (61) is a finned evaporator or a shell and tube heat exchanger.
  8. 一种蒸发冷凝机组(100)的控制方法,其特征在于,所述蒸发冷凝机组(100)的控制方法包括以下步骤:A control method of an evaporative condensation unit (100), characterized in that the control method of the evaporative condensation unit (100) includes the following steps:
    获取控制信号;Obtaining control signals;
    当所述控制信号为制冷模式信号时,所述室内侧换热管路(20)与所述第一室外侧换热管路(40)连通;When the control signal is a cooling mode signal, the indoor-side heat exchange pipe (20) communicates with the first outdoor-side heat exchange pipe (40);
    当所述控制信号为制热模式信号时,所述室内侧换热管路(20)与所述第二室外侧换热管路(60)连通。When the control signal is a heating mode signal, the indoor-side heat exchange pipe (20) communicates with the second outdoor-side heat exchange pipe (60).
  9. 根据权利要求8所述的蒸发冷凝机组(100)的控制方法,其特征在于,所述蒸发冷凝机组(100)还包括四通阀(24),所述四通阀(24)可在第一连通状态与第二连通状态之间切换;当所述控制信号为制热模式信号时,所述室内侧换热管路(20)与所述第二室外侧换热管路(60)连通的步骤具体包括以下步骤:The method for controlling an evaporative condensing unit (100) according to claim 8, wherein the evaporative condensing unit (100) further comprises a four-way valve (24), and the four-way valve (24) can be The communication state is switched between the second communication state and the second communication state. When the control signal is a heating mode signal, the indoor heat exchange pipe (20) communicates with the second outdoor heat exchange pipe (60). The steps include the following steps:
    当所述控制信号为制热模式信号时,所述四通阀(24)处于所述第一连通状态,所述室内侧换热管路(20)与所述第一室外侧换热管路(40)通过所述四通阀(24)连通,并获取所述压缩机(21)的吸气端与排气端的压力差值;When the control signal is a heating mode signal, the four-way valve (24) is in the first communication state, and the indoor-side heat exchange pipe (20) and the first outdoor-side heat exchange pipe (40) communicating through the four-way valve (24), and obtaining a pressure difference between the suction end and the exhaust end of the compressor (21);
    当所述压缩机(21)的所述吸气端与所述排气端的压力差值大于或等于所述四通阀(24)的换向压力差值后,所述四通阀(24)处于所述第二连通状态,所述室内侧换热管路(20)与所述第二室外侧换热管路(60)通过所述四通阀(24)连通。When the pressure difference between the suction end and the exhaust end of the compressor (21) is greater than or equal to the reversing pressure difference between the four-way valve (24), the four-way valve (24) In the second communication state, the indoor-side heat exchange pipe (20) and the second outdoor-side heat exchange pipe (60) communicate through the four-way valve (24).
  10. 根据权利要求8所述的蒸发冷凝机组(100)的控制方法,其特征在于,所述第一室外侧换热管路(40)包括第一阀门(43)与第二阀门(45),所述第二室外侧换热管路(60)包括第三阀门(63)与第四阀门(65);The method for controlling an evaporative condensing unit (100) according to claim 8, wherein the first outdoor-side heat exchange pipe (40) includes a first valve (43) and a second valve (45), and The second outdoor heat exchange pipeline (60) includes a third valve (63) and a fourth valve (65);
    当所述室内侧换热管路(20)与所述第一室外侧换热管路(40)连通时,所述第一阀门(43)与所述第二阀门(45)处于开启状态,所述第三阀门(63)与所述第四阀门(65)处于断开状态;When the indoor-side heat exchange pipe (20) is in communication with the first outdoor-side heat exchange pipe (40), the first valve (43) and the second valve (45) are in an open state, The third valve (63) and the fourth valve (65) are in a disconnected state;
    当所述室内侧换热管路(20)与所述第二室外侧换热管路(60)连通时,所述第一阀门(43)与所述第二阀门(45)处于断开状态,所述第三阀门(63)与所述第四阀门(65)处于开启状态。When the indoor-side heat exchange pipe (20) is in communication with the second outdoor-side heat exchange pipe (60), the first valve (43) and the second valve (45) are in a disconnected state. The third valve (63) and the fourth valve (65) are in an open state.
PCT/CN2018/121023 2018-09-20 2018-12-14 Evaporative condensing unit and control method therefor WO2020056943A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201811099398.3 2018-09-20
CN201811099398.3A CN108954898A (en) 2018-09-20 2018-09-20 Evaporative condenser unit and its control method

Publications (1)

Publication Number Publication Date
WO2020056943A1 true WO2020056943A1 (en) 2020-03-26

Family

ID=64471794

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/121023 WO2020056943A1 (en) 2018-09-20 2018-12-14 Evaporative condensing unit and control method therefor

Country Status (2)

Country Link
CN (1) CN108954898A (en)
WO (1) WO2020056943A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108954898A (en) * 2018-09-20 2018-12-07 珠海格力电器股份有限公司 Evaporative condenser unit and its control method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10197084A (en) * 1997-01-06 1998-07-31 Matsushita Refrig Co Ltd Heat pump type air conditioner
CN101571327A (en) * 2009-06-05 2009-11-04 江苏春兰冷冻设备有限公司 Multi-connected heat pump air-conditioning unit parallelly connected by outdoor units and control method
CN203687235U (en) * 2013-09-10 2014-07-02 广东美的暖通设备有限公司 Air-conditioning outdoor unit, two-pipe refrigerating and heating system and three-pipe heating and recovering system
CN104154672A (en) * 2014-08-06 2014-11-19 广东美的暖通设备有限公司 Parallel multi-split air conditioner system and defrosting control method
WO2015140887A1 (en) * 2014-03-17 2015-09-24 三菱電機株式会社 Refrigeration cycle apparatus
CN105509362A (en) * 2015-12-22 2016-04-20 广东志高暖通设备股份有限公司 Multi-connected environment treatment system
CN108954898A (en) * 2018-09-20 2018-12-07 珠海格力电器股份有限公司 Evaporative condenser unit and its control method
CN208794779U (en) * 2018-09-20 2019-04-26 珠海格力电器股份有限公司 Evaporative condenser unit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10197084A (en) * 1997-01-06 1998-07-31 Matsushita Refrig Co Ltd Heat pump type air conditioner
CN101571327A (en) * 2009-06-05 2009-11-04 江苏春兰冷冻设备有限公司 Multi-connected heat pump air-conditioning unit parallelly connected by outdoor units and control method
CN203687235U (en) * 2013-09-10 2014-07-02 广东美的暖通设备有限公司 Air-conditioning outdoor unit, two-pipe refrigerating and heating system and three-pipe heating and recovering system
WO2015140887A1 (en) * 2014-03-17 2015-09-24 三菱電機株式会社 Refrigeration cycle apparatus
CN104154672A (en) * 2014-08-06 2014-11-19 广东美的暖通设备有限公司 Parallel multi-split air conditioner system and defrosting control method
CN105509362A (en) * 2015-12-22 2016-04-20 广东志高暖通设备股份有限公司 Multi-connected environment treatment system
CN108954898A (en) * 2018-09-20 2018-12-07 珠海格力电器股份有限公司 Evaporative condenser unit and its control method
CN208794779U (en) * 2018-09-20 2019-04-26 珠海格力电器股份有限公司 Evaporative condenser unit

Also Published As

Publication number Publication date
CN108954898A (en) 2018-12-07

Similar Documents

Publication Publication Date Title
CN211739588U (en) Air conditioner capable of improving heat exchange performance
CN103175344B (en) Cold-region used multi-connected heat pump system and control method thereof
WO2020062606A1 (en) Refrigerant circulation system and method for controlling same, and air conditioning device
WO2020073481A1 (en) Air conditioning system
WO2017219650A1 (en) Air conditioning system, composite condenser, and operation control method and device for air conditioning system
WO2020186906A1 (en) Defrosting control method for air conditioner and air conditioner
CN111609593B (en) Double-temperature air conditioning system, control method and air conditioner
WO2018046026A1 (en) Air conditioning heat pump system which uses injector, air conditioner, and air conditioner control method
WO2019091241A1 (en) Cooling circulation system for air conditioning, and air conditioner
CN108592463A (en) Air conditioner heat pump system and control method
CN208075218U (en) Air conditioner heat pump system
WO2021228020A1 (en) Method for controlling multi-split air conditioning system
KR101706865B1 (en) Air conditioning system
KR100528292B1 (en) Heat-pump type air conditioner
CN113446756A (en) Four-pipe air source heat pump unit with variable-speed compressor
CN210801718U (en) Air conditioner capable of continuously heating
CN106766325B (en) Low-temperature air-conditioning system and air-conditioning
WO2020103521A1 (en) Gas-replenishing and enthalpy-increasing system and control method therefor
WO2020056943A1 (en) Evaporative condensing unit and control method therefor
WO2019128517A1 (en) Air-conditioner system
CN109163469A (en) Air-conditioning system and its control method
CN106403347B (en) Low-temperature air-conditioning system and air-conditioning
CN208794779U (en) Evaporative condenser unit
CN105758047B (en) The cascade refrigeration system of variable-flow either simplex matter common condenser and evaporator
CN108106045A (en) A kind of air-conditioning refrigerator combined system of central refrigerating split cooling

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18934467

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18934467

Country of ref document: EP

Kind code of ref document: A1