WO2019062443A1 - 除湿系统、空调器及除湿控制方法 - Google Patents

除湿系统、空调器及除湿控制方法 Download PDF

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Publication number
WO2019062443A1
WO2019062443A1 PCT/CN2018/102970 CN2018102970W WO2019062443A1 WO 2019062443 A1 WO2019062443 A1 WO 2019062443A1 CN 2018102970 W CN2018102970 W CN 2018102970W WO 2019062443 A1 WO2019062443 A1 WO 2019062443A1
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Prior art keywords
dehumidification
membrane group
film
air conditioner
compressor
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PCT/CN2018/102970
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English (en)
French (fr)
Inventor
李银银
宋强
刘景升
刘江彬
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青岛海尔空调电子有限公司
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Publication of WO2019062443A1 publication Critical patent/WO2019062443A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/1435—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification comprising semi-permeable membrane

Definitions

  • the invention relates to the technical field of air conditioners, and in particular to a dehumidification system, an air conditioner and a dehumidification control method.
  • the solution for temperature and humidity independent treatment is to provide a dehumidification device with a dehumidifying membrane for dehumidification in a conventional air conditioner.
  • the main principle is: using the characteristics of the dehumidification membrane only allowing the passage of water molecules, under the action of the driving force on both sides of the membrane (such as pressure difference, concentration difference, temperature difference), the water molecules in the humid air passing through the dehumidifying membrane pass through the dehumidification.
  • the membrane is discharged, and the remaining dry air is sent into the room to achieve the dehumidification effect.
  • the air conditioner using the membrane dehumidification technique has a problem that the dehumidification effect is unstable.
  • the present invention provides a dehumidification system including a dehumidification membrane group and the a vacuum pump connected to the dehumidifying membrane group, the vacuum pump is configured to evacuate the dehumidifying membrane group to form a negative pressure in the dehumidifying membrane group, the dehumidifying system further comprising a drainage unit, the drainage unit and the dehumidifying membrane The group is connected to discharge moisture in the dehumidifying membrane group to the outside.
  • the drainage unit includes a first compressor and a humidifying membrane group, and the first compressor is connected to the dehumidifying membrane group and the humidifying membrane group, respectively, for The moisture in the dehumidifying membrane group is pressurized and transported into the humidifying membrane group and thus discharged to the outside.
  • the dehumidification film group and/or the humidification film group includes at least one organic film or inorganic film having high selective permeability to water vapor molecules.
  • the membrane material of the organic membrane is cellulose and its derivative membrane material, polysulfone membrane material, polyamide membrane material or polyimide membrane material; and/or the inorganic
  • the membrane is a ceramic membrane, a metal membrane, a glass membrane, a molecular sieve composite membrane or a zeolite membrane.
  • an isolation valve is further disposed between the dehumidification membrane group and the vacuum pump.
  • the present invention also provides an air conditioner including a temperature adjustment system including a second compressor that is cyclically connected, a first heat exchanger, a throttle element, and a second heat exchanger, the air conditioner further A dehumidification system according to any of the preceding aspects.
  • the drain unit, the first heat exchanger, the throttle element, and the second compressor are disposed in an outdoor unit of the air conditioner, and the second exchange
  • the heat exchanger, the dehumidification membrane group, and the vacuum pump are disposed in an indoor unit of the air conditioner.
  • the temperature adjustment system further includes a first fan disposed in the outdoor unit and a second fan disposed in the indoor unit, the first fan and the second fan Used to flow air through the first heat exchanger and the second heat exchanger, respectively.
  • the invention also provides a dehumidification control method based on operation of a dehumidification system, wherein the dehumidification control method comprises:
  • the vacuum pump is activated at the same time, before or after the isolation valve is opened.
  • the dehumidification control method further includes:
  • the compressor is started when the moisture content in the dehumidifying membrane group reaches a set threshold.
  • the dehumidification system includes a dehumidification membrane group, a vacuum pump, and a drainage unit.
  • the vacuum pump is connected to the dehumidifying membrane group for evacuating the dehumidifying membrane group to form a negative pressure inside the dehumidifying membrane group, thereby causing water molecules in the indoor air to enter the dehumidifying membrane group.
  • the drain unit includes a first compressor and a humidifying membrane group, and the first compressor is connected to the dehumidifying membrane group and the humidifying membrane group, respectively, for pressurizing the moisture in the dehumidifying membrane group to be transported to the humidifying membrane group and thus discharged to the outside.
  • the dehumidification system of the invention can quickly and effectively discharge the moisture generated in the dehumidification membrane group through the first compressor and discharge to the outside, thereby ensuring the dehumidification effect of the dehumidification membrane group and improving the dehumidification process.
  • the stability solves the problem that the dehumidification effect of the dehumidification system is unstable in the prior art, and improves the user experience.
  • the present invention provides an air conditioner including a temperature adjustment system and a dehumidification system.
  • the air conditioner of the present invention can realize independent control of temperature and humidity by providing a dehumidification system that operates independently of the temperature adjustment system in the air conditioner, and when the temperature adjustment system is operated simultaneously with the dehumidification system, since the indoor humid air is dried by the dehumidification system, The latent heat of the air is absorbed, so the temperature regulation system only needs to process the sensible heat of the dry air entering the system. That is to say, the air conditioner with a dehumidification system of the present invention has an effect of improving energy efficiency as compared with a conventional air conditioner.
  • FIG. 1 is a schematic structural view of a dehumidification system of the present invention
  • FIG. 2 is a schematic structural view of an air conditioner of the present invention
  • FIG. 3 is a schematic flow chart of a dehumidification control method of a dehumidification system of the present invention.
  • first compressor in the drawing is disposed in the outdoor unit, the positional relationship is not constant, and those skilled in the art can adjust it as needed to suit a specific application.
  • first compressor and/or the second compressor may be disposed in an indoor unit or the like.
  • the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed connection, for example, or It is a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • FIG. 1 is a schematic view of the structure of the dehumidification system of the present invention.
  • the dehumidification system of the present invention mainly includes the dehumidification membrane group 11 , the isolation valve 12 , and the vacuum pump 13 which are usually disposed indoors. And a drainage unit that is usually installed outdoors.
  • the vacuum pump 13 is connected to the dehumidifying membrane group 11 through the isolation valve 12 for evacuating the dehumidifying membrane group 11 to form a negative pressure in the dehumidifying membrane group 11, thereby causing a pressure difference between the dehumidifying membrane group 11 and the outside air to cause water molecules.
  • the drain unit further includes a first compressor 14 and a humidifying membrane group 15, and the first compressor 14 is connected to the dehumidifying membrane group 11 and the humidifying membrane group 15, respectively, for pressurizing the water accumulated in the dehumidifying membrane group 11 and transporting it to humidification. The membrane group 15 is thus discharged to the outside.
  • the dehumidifying film group 11 and the humidifying film group 15 include at least one organic film having high selective permeability to water vapor molecules, and the material of the organic film may be cellulose and its derivative film material, polysulfone film material. , polyamide film material or polyimide film material.
  • an inorganic film may be selected as the dehumidifying film group 11, such as a ceramic film, a metal film, a glass film, a molecular sieve composite film or a zeolite film.
  • the isolation valve 12 is first opened, and the dehumidification membrane group 11 is evacuated by the vacuum pump 13, thereby forming a negative pressure in the dehumidification membrane group 11, at which time water vapor in the indoor air enters the dehumidification membrane group 11 .
  • the first compressor 14 is opened, and the moisture in the dehumidifying membrane group 11 is pressurized and sent to the humidifying membrane group 15, at this time, due to the humidifying membrane group 15
  • the partial pressure of water vapor is higher than the partial pressure of water vapor in the outdoor air, and the water vapor in the humidifying membrane group 15 is naturally discharged into the outdoor environment.
  • the dehumidification system of the present invention can quickly and efficiently pressurize the moisture generated in the dehumidification membrane group 11 through the first compressor 14 and then discharge it to the outside through the humidification membrane group 15 by the arrangement of the drainage unit.
  • the balance of moisture in the dehumidification membrane group 11 is ensured, the operation of the dehumidification system is more stable, the problem of unstable dehumidification effect of the dehumidification system in the prior art is solved, and the user experience is improved.
  • the dehumidifying membrane group 11 and the humidifying membrane group 15 may have the same structure and adopt a positive and negative connection to realize the functions of the dehumidifying membrane group 11 and the humidifying membrane group 15. Further, for different regions and different environments, the number of layers of the organic film or the inorganic film in the dehumidifying film group 11 and the humidifying film group 15 is different, and the type of the first compressor 14 disposed is also different, and therefore, those skilled in the art The specific adjustment of the number of layers of the dehumidifying film group 11, the humidifying film group 15, and the type of the first compressor 14 can be made for different application scenarios, and is not specifically limited in this embodiment.
  • FIG. 2 is a schematic structural view of an air conditioner of the present invention.
  • the air conditioner of the present invention includes a temperature adjustment system and a dehumidification system.
  • the temperature regulation system mainly includes a second compressor 21, a four-way valve 22, a first heat exchanger 231, a throttle element 24 (electronic expansion valve), a check valve 25, a high pressure cut-off valve 261, and a second heat exchange.
  • the dehumidification system is the dehumidification system described above, and mainly includes a dehumidification membrane group 11, an isolation valve 12, a vacuum pump 13, a first compressor 14, and a humidifying membrane group 15.
  • the high pressure shutoff valve 261 and the low pressure shutoff valve 262 are disposed in the outdoor unit of the air conditioner, and the dehumidifying membrane group 11, the isolation valve 12, the vacuum pump 13, the second heat exchanger 232, the second fan 282, and the gas-liquid separator 27 are disposed at The indoor unit of the air conditioner.
  • the advantage of the above arrangement is that by providing a separate dehumidification system in the conventional air conditioner, the temperature adjustment system and the dehumidification system can operate independently of each other, thereby achieving independent control of temperature and humidity. Further, when the temperature adjustment system is operated simultaneously with the dehumidification system, since the indoor humid air is dried by the dehumidification system, that is, the latent heat portion of the air is absorbed, the temperature adjustment system only needs to process the sensible portion of the dry air entering the system. That is to say, the air conditioner with a dehumidification system of the present invention has an effect of improving energy efficiency as compared with a conventional air conditioner.
  • the gas-liquid separator 27 may be disposed in the outdoor unit, and the first compressor 14 and/or the second compressor 21 may be disposed in an indoor unit or the like.
  • FIG. 3 is a schematic flow chart of a dehumidification control method for a dehumidification system of the present invention.
  • the dehumidification control method of the present invention operates based on the aforementioned dehumidification system, and the dehumidification control method includes the following steps:
  • the isolation valve 12 is opened, such as after the user selects the dehumidification mode or other modes with the dehumidification function, the air conditioning control system causes the isolation valve 12 to open;
  • the vacuum pump 13 is started simultaneously with, before or after the isolation valve 12 is opened, preferably, the vacuum pump 13 is activated while the isolation valve 12 is opened, and the dehumidification membrane group 11 is evacuated;
  • the compressor when the moisture content in the dehumidifying membrane group 11 reaches a set threshold, the compressor is started, for example, when the humidity detecting device/sensor is disposed in the dehumidifying membrane group 11, when the humidity in the dehumidifying membrane group 11 reaches a certain threshold, The compressor is started, the moisture in the dehumidifying membrane group 11 is pressurized, and then sent to the humidifying membrane group 15 and thus discharged to the outside.
  • the embodiment does not specifically limit the size of the threshold, and any person in the field can make any adjustment for a specific application scenario. .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Gases (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

一种除湿系统、空调器及除湿控制方法。除湿系统包括除湿膜组（11）以及与除湿膜组（11）连接的真空泵（13），真空泵（13）用于对除湿膜组（11）抽真空以便在除湿膜组（11）内形成负压，除湿系统还包括排水单元，排水单元与除湿膜组（11）连通，用于将除湿膜组（11）内的水分排放到室外。通过排水单元的设置，使得该除湿系统能够快速有效地将除湿膜组（11）内产生的水分通过第一压缩机（14）加压后排放到室外，从而保证了除湿膜组（11）的除湿效果，提高了除湿过程的稳定性。该空调器包括温度调节系统和除湿系统。除湿控制方法包括以下步骤：S100、使隔离阀（12）打开，如在用户选择除湿模式或带有除湿功能的其他模式后，空调的控制系统使隔离阀（12）打开；S200、在隔离阀（12）打开的同时、之前或之后，使真空泵（13）启动；S300、当除湿膜组（11）中的水分含量达到设定阈值时，使第一压缩机（14）启动，如在除湿膜组（11）中设置湿度检测装置/传感器，当除湿膜组（11）中的湿度达到一定的阈值时，使第一压缩机（14）启动，将除湿膜组（11）中的水分加压后输送到加湿膜组（15）并因此排放到室外。

Description

除湿系统、空调器及除湿控制方法 技术领域
本发明涉及空调技术领域，具体涉及一种除湿系统、空调器及除湿控制方法。
背景技术
随着社会的发展和生活水平的提高，人们对选购家用电器的要求也越来越高。以空调为例，在夏季使用空调时，人们对空调的要求不仅仅体现在房间的温度调节上，而且还体现在对房间的湿度调节，只有温度和湿度均处于合理的区间，这样的房间才会更加舒适，所以对于空调来说，在温度调节的基础上，研究可以除湿的空调系统具有非常重要的意义。传统的空调设计一般是将空调环境的温度和湿度捆绑在一起进行调节与控制，但是这种调节方法存在的主要问题在于：由于空调系统将温度和湿度捆绑在一起调节，因此在调节湿度的同时，温度也大幅下降，不仅影响空调环境的舒适性，也造成了能耗的大幅增加。
为了解决上述问题，一些空调厂商采用了温湿度独立处理的解决方案。具体而言，温湿度独立处理的解决方案是在传统空调中设置带有除湿膜的除湿装置进行除湿。其主要原理为：利用除湿膜只允许水分子通过的特性，在膜两侧驱动力(如压力差、浓度差、温度差)的作用下，经过除湿膜的潮湿空气中的水分子透过除湿膜排出，剩余的干空气被送入室内，进而实现除湿效果。这种方案具有操作方便、分离效率高、能耗低等优点。但是在实际应用中，由于膜材料的亲水性，水分子很容易在渗透侧聚积，使后续透过速率降低，导致除湿性能急剧下降，影响用户的使用体验。也就是说，现有利用膜除湿技术的空调存在除湿效果不稳定的问题。
相应地，本领域需要一种新的除湿系统来解决上述问题。
发明内容
为了解决现有技术中的上述问题，即为了解决现有利用膜除湿技术的空调存在的除湿效果不稳定的问题，本发明提供了一种除湿系 统，该除湿系统包括除湿膜组以及与所述除湿膜组连接的真空泵，所述真空泵用于对所述除湿膜组抽真空以便在所述除湿膜组内形成负压，所述除湿系统还包括排水单元，所述排水单元与所述除湿膜组连通，用于将所述除湿膜组内的水分排放到室外。
在上述除湿系统的优选技术方案中，所述排水单元包括第一压缩机和加湿膜组，所述第一压缩机分别与所述除湿膜组和所述加湿膜组连接，用于将所述除湿膜组内的水分加压后输送到所述加湿膜组内并因此排放到室外。
在上述除湿系统的优选技术方案中，所述除湿膜组和/或所述加湿膜组包括至少一层对水蒸气分子具有高选择透过性的有机膜或无机膜。
在上述除湿系统的优选技术方案中，所述有机膜的膜材料为纤维素及其衍生物膜材料、聚砜膜材料、聚酰胺膜材料或聚酰亚胺膜材料；并且/或者所述无机膜为陶瓷膜、金属膜、玻璃膜、分子筛复合膜或沸石膜。
在上述除湿系统的优选技术方案中，所述除湿膜组和所述真空泵之间还设置有隔离阀。
本发明还提供了一种空调器，包括温度调节系统，所述温度调节系统包括循环连接的第二压缩机、第一换热器、节流元件和第二换热器，所述空调器还包括前述方案中任一项所述的除湿系统。
在上述空调器的优选技术方案中，所述排水单元、所述第一换热器、所述节流元件以及所述第二压缩机设置于所述空调器的室外机，所述第二换热器、所述除湿膜组和所述真空泵设置于所述空调器的室内机。
在上述空调器的优选技术方案中，所述温度调节系统还包括设置于所述室外机的第一风机和设置于所述室内机的第二风机，所述第一风机和所述第二风机分别用于使空气流过所述第一换热器和所述第二换热器。
本发明还提供了一种基于除湿系统进行操作的除湿控制方法所述除湿控制方法包括：
使所述隔离阀打开；
在所述隔离阀打开的同时、之前或之后，使所述真空泵启动。
在上述除湿控制方法的优选技术方案中，所述除湿控制方法还包括：
当所述除湿膜组中的水分含量达到设定阈值时，使所述压缩机启动。
本领域技术人员能够理解的是，在本发明的优选技术方案中，除湿系统包括除湿膜组、真空泵以及排水单元。真空泵与除湿膜组连接，用于对除湿膜组抽真空以便在除湿膜组内部形成负压，促使室内空气中的水分子进入除湿膜组。排水单元包括第一压缩机和加湿膜组，第一压缩机分别与除湿膜组和加湿膜组连接，用于将除湿膜组内的水分加压后输送到加湿膜组并因此排放到室外。通过排水单元的设置，本发明的除湿系统能够快速有效地将除湿膜组内产生的水分通过第一压缩机加压后排放到室外，从而保证了除湿膜组的除湿效果，提高了除湿过程的稳定性，解决了现有技术中除湿系统除湿效果不稳定的问题，改善了用户体验。
此外，本发明还提供了一种空调器，该空调器包括温度调节系统和除湿系统。通过在空调中设置与温度调节系统彼此独立运行的除湿系统，本发明的空调器可以实现温湿度独立控制，并且当温度调节系统与除湿系统同时运行时，由于室内潮湿空气被除湿系统干燥，即空气的潜热部分被吸收，因此温度调节系统只需处理进入系统的干燥空气的显热部分即可。也就是说，较传统空调器而言，本发明的带有除湿系统的空调器还具有提高能效的效果。
附图说明
下面参照附图来描述本发明的除湿系统、空调器及除湿控制方法。附图中：
图1为本发明的除湿系统的结构示意图；
图2为本发明的空调器的结构示意图；
图3为本发明的除湿系统的除湿控制方法的流程示意图。
附图标记列表
11、除湿膜组；12、隔离阀；13、真空泵；14、第一压缩机；15、加湿膜组；21、第二压缩机；22、四通阀；231、第一换热器；232、 第二换热器；24、节流元件；25、单向阀；261、高压截止阀；262、低压截止阀；27、气液分离器；281、第一风机；282、第二风机。
具体实施方式
下面参照附图来描述本发明的优选实施方式。本领域技术人员应当理解的是，这些实施方式仅仅用于解释本发明的技术原理，并非旨在限制本发明的保护范围。例如，虽然附图中的第一压缩机是设置在室外机，但是这种位置关系非一成不变，本领域技术人员可以根据需要对其作出调整，以便适应具体的应用场合。例如，可以将第一压缩机和/或第二压缩机设置在室内机等。
需要说明的是，在本发明的描述中，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
此外，还需要说明的是，在本发明的描述中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域技术人员而言，可根据具体情况理解上述术语在本发明中的具体含义。
首先参照图1，图1为本发明的除湿系统的结构示意图。如图1所示，为了解决现有技术中利用膜除湿技术的空调存在的除湿效果不稳定的问题，本发明的除湿系统主要包括通常设置在室内的除湿膜组11、隔离阀12、真空泵13以及通常设置在室外的排水单元。真空泵13通过隔离阀12与除湿膜组11连接，用于对除湿膜组11抽真空，以便在除湿膜组11内形成负压，进而使除湿膜组11与外部空气形成压力差，使水分子进入除湿膜组11。排水单元进一步包括第一压缩机14和加湿膜组15，第一压缩机14分别与除湿膜组11和加湿膜组15连接，用于将除湿膜组11内聚积的水分加压后输送到加湿膜组15，并因此排放到室外。
优选地，除湿膜组11和加湿膜组15内包括至少一层对水蒸气分子具有高选择透过性的有机膜，有机膜的材料可以为纤维素及其衍生物膜材料、聚砜膜材料、聚酰胺膜材料或聚酰亚胺膜材料等。当然，除有机膜外，还可以选用无机膜作为除湿膜组11，如采用陶瓷膜、金属膜、玻璃膜、分子筛复合膜或沸石膜等。
当需要进行除湿操作时，首先打开隔离阀12，利用真空泵13对除湿膜组11进行抽真空，从而在除湿膜组11内形成负压，此时室内空气中的水蒸气会进入除湿膜组11。当除湿膜组11内的水蒸气含量达到一定程度时，打开第一压缩机14，对除湿膜组11内的水分进行加压并输送到加湿膜组15，此时，由于加湿膜组15内的水蒸气分压高于室外空气中的水蒸气分压，加湿膜组15内的水蒸气会自然地排放到室外环境中。
从上述描述可以看出，通过排水单元的设置，本发明的除湿系统能够快速有效地将除湿膜组11内产生的水分通过第一压缩机14加压后透过加湿膜组15排放到室外，保证了除湿膜组11内水分的平衡，使除湿系统的运行更加稳定，解决了现有技术中除湿系统除湿效果不稳定的问题，改善了用户体验。
需要说明的是，本实施方式中，除湿膜组11和加湿膜组15可以采用相同结构，并采用正反接的方式以实现除湿膜组11和加湿膜组15的功能。此外，针对不同地区和不同环境，除湿膜组11和加湿膜组15内的有机膜或无机膜的层数不同，配置的第一压缩机14的型号也不尽相同，因此，本领域技术人员可以针对不同的应用场景对除湿膜组11、加湿膜组15的层数以及第一压缩机14的型号作出具体调整，本实施例中不对其作具体限制。
下面参照图2，图2为本发明的空调器的结构示意图。如图2所示，本发明的空调器包括温度调节系统和除湿系统。温度调节系统主要包括循环连接的第二压缩机21、四通阀22、第一换热器231、节流元件24(电子膨胀阀)、单向阀25、高压截止阀261、第二换热器232、低压截止阀262、气液分离器27以及第一风机281和第二风机282，其中第二压缩机21、四通阀22、第一换热器231、节流元件24(电子膨胀阀)、单向阀25、高压截止阀261、第二换热器232、低压截止阀262、气液分离器27组成传统空调的温度调节回路，第一风机281和第二风机282分别用于使空气流过第一换热器231和第二换热器232。除湿系统为 上文所述的除湿系统，其主要包括除湿膜组11、隔离阀12、真空泵13、第一压缩机14以及加湿膜组15。
作为一种优选的技术方案，第一压缩机14、加湿膜组15、第二压缩机21、四通阀22、第一换热器231、第一风机281、节流元件24、单向阀25、高压截止阀261以及低压截止阀262设置于空调器的室外机，除湿膜组11、隔离阀12、真空泵13、第二换热器232、第二风机282以及气液分离器27设置于空调器的室内机。
上述设置方式的优点在于：通过在传统空调中设置一套独立的除湿系统，使得温度调节系统与除湿系统能够彼此独立运行，进而实现温湿度独立控制。进一步地，当温度调节系统与除湿系统同时运行时，由于室内潮湿空气被除湿系统干燥，即空气的潜热部分被吸收，因此温度调节系统只需处理进入系统的干燥空气的显热部分即可。也就是说，较传统空调器而言，本发明的带有除湿系统的空调器还具有提高能效的效果。
当然，上述优选的布置方式仅仅用来阐述本发明的技术原理，并非用于限制本发明的保护范围，在不偏离本发明原理的前提下，任何设置形式的改变都落入本发明的保护范围之中。例如，气液分离器27还可以设置于室外机中，第一压缩机14和/或第二压缩机21设置于室内机中等。
下面参照图3，图3为本发明的除湿系统的除湿控制方法的流程示意图。如图3所示，本发明的除湿控制方法基于前述除湿系统进行操作，该除湿控制方法包括以下步骤：
S100、使隔离阀12打开，如在用户选择除湿模式或带有除湿功能的其他模式后，空调的控制系统使隔离阀12打开；
S200、在隔离阀12打开的同时、之前或之后，使真空泵13启动，优选地，在隔离阀12打开的同时，使真空泵13启动，对除湿膜组11进行抽真空操作；
S300、当除湿膜组11中的水分含量达到设定阈值时，使压缩机启动，如在除湿膜组11中设置湿度检测装置/传感器，当除湿膜组11中的湿度达到一定的阈值时，使压缩机启动，将除湿膜组11中的水分加压后输送到加湿膜组15并因此排放到室外。
需要说明的是，基于不同类别除湿膜吸水性能的不同，上述阈值的设置也有所不同，因此本实施例不对设定阈值的大小作具体限制，本领域人员能够针对具体应用场景作出任何形式的调整。
至此，已经结合附图所示的优选实施方式描述了本发明的技术方案，但是，本领域技术人员容易理解的是，本发明的保护范围显然不局限于这些具体实施方式。在不偏离本发明的原理的前提下，本领域技术人员可以对相关技术特征作出等同的更改或替换，这些更改或替换之后的技术方案都将落入本发明的保护范围之内。

Claims (10)

  1. 一种除湿系统，包括除湿膜组以及与所述除湿膜组连接的真空泵，所述真空泵用于对所述除湿膜组抽真空以便在所述除湿膜组内形成负压，
    其特征在于，所述除湿系统还包括排水单元，所述排水单元与所述除湿膜组连通，用于将所述除湿膜组内的水分排放到室外。
  2. 根据权利要求1所述的除湿系统，其特征在于，所述排水单元包括第一压缩机和加湿膜组，所述第一压缩机分别与所述除湿膜组和所述加湿膜组连接，用于将所述除湿膜组内的水分加压后输送到所述加湿膜组内并因此排放到室外。
  3. 根据权利要求2所述的除湿系统，其特征在于，所述除湿膜组和/或所述加湿膜组包括至少一层对水蒸气分子具有高选择透过性的有机膜或无机膜。
  4. 根据权利要求3所述的除湿系统，其特征在于，所述有机膜的膜材料为纤维素及其衍生物膜材料、聚砜膜材料、聚酰胺膜材料或聚酰亚胺膜材料；并且/或者所述无机膜为陶瓷膜、金属膜、玻璃膜、分子筛复合膜或沸石膜。
  5. 根据权利要求2至4中任一项所述的除湿系统，其特征在于，所述除湿膜组和所述真空泵之间还设置有隔离阀。
  6. 一种空调器，包括温度调节系统，所述温度调节系统包括循环连接的第二压缩机、第一换热器、节流元件和第二换热器，
    其特征在于，所述空调器还包括权利要求1至5中任一项所述的除湿系统。
  7. 根据权利要求6所述的空调器，其特征在于，所述排水单元、所述第一换热器、所述节流元件以及所述第二压缩机设置于所述空调器的室 外机，所述第二换热器、所述除湿膜组和所述真空泵设置于所述空调器的室内机。
  8. 根据权利要求7所述的空调器，其特征在于，所述温度调节系统还包括设置于所述室外机的第一风机和设置于所述室内机的第二风机，所述第一风机和所述第二风机分别用于使空气流过所述第一换热器和所述第二换热器。
  9. 一种基于权利要求5的除湿系统进行操作的除湿控制方法，其特征在于，所述除湿控制方法包括：
    使所述隔离阀打开；
    在所述隔离阀打开的同时、之前或之后，使所述真空泵启动。
  10. 根据权利要求9所述的除湿控制方法，其特征在于，所述除湿控制方法还包括：
    当所述除湿膜组中的水分含量达到设定阈值时，使所述压缩机启动。
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