Air conditioning system

Abstract

The utility model relates to the technical field of air conditioners, and discloses an air conditioning system which comprises a compressor, an air conditioning system, an air conditioning system and an air conditioning system. The system comprises a four-way valve and a reheating multi-way valve; the outdoor heat exchanger is communicated with the system four-way valve; the indoor heat exchange assembly comprises a dehumidification heat exchanger and a reheating heat exchanger, one end of the dehumidification heat exchanger communicates with the outdoor heat exchanger, the other end of the dehumidification heat exchanger communicates with the system four-way valve, one end of the reheating heat exchanger communicates with the reheating multi-way valve, and the other end of the reheating heat exchanger communicates with the dehumidification heat exchanger; a first indoor communicating pipeline is arranged between the dehumidification heat exchanger and the reheating heat exchanger, and the first indoor communicating pipeline is provided with a first throttling element. According to the air conditioning system, the indoor temperature is controlled while the indoor humidity is adjusted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioning, for example to an air conditioning system. BACKGROUND

[0002] At present, the air conditioning system is the main electrical appliance for adjusting the temperature and humidity of the indoor environment of the user, and the temperature and humidity adjusting capacity thereof is directly related to the user experience of the air conditioning system. When dehumidification is performed by using the air conditioning system, different users or different weather conditions have different requirements for the temperature in the dehumidification process, for example, the requirement for keeping the temperature unchanged in the dehumidification process or the requirement for increasing the temperature in the dehumidification process.

[0003] In the existing air conditioning system, in order to achieve the effects of dehumidification and temperature adjustment, two heat exchangers are arranged in the air conditioning indoor unit, one of which is used for dehumidification and the other of which is used for reheating the dehumidified air, so as to achieve the purpose of constant temperature dehumidification.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] The existing air conditioning system, since the areas of the heat exchanger for dehumidification and the heat exchanger for reheating are fixed, can only achieve micro-cooling dehumidification and cannot achieve constant temperature dehumidification.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. Invention content

[0007] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor does it determine the key / important components or delineate the protection scope of these embodiments, but serves as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide an air conditioning system, comprising: a compressor comprising a suction port and a discharge port, the suction port being provided with a first suction branch and a second suction branch, and the discharge port being provided with a first discharge branch and a second discharge branch; a system four-way valve being communicatively connected to the first discharge branch and the first suction branch; a reheating multi-way valve being communicatively connected to the second discharge branch and the second suction branch; an outdoor heat exchanger being in communication with the system four-way valve; an indoor heat exchange assembly comprising a dehumidification heat exchanger and a reheating heat exchanger, wherein one end of the dehumidification heat exchanger is in communication with the outdoor heat exchanger, the other end of the dehumidification heat exchanger is in communication with the system four-way valve, one end of the reheating heat exchanger is in communication with the reheating multi-way valve, and the other end of the reheating heat exchanger is in communication with the dehumidification heat exchanger, wherein a first indoor communication pipeline is arranged between the dehumidification heat exchanger and the reheating heat exchanger, and the first indoor communication pipeline is provided with a first throttling element.

[0009] In some optional embodiments, the first indoor communicating pipeline comprises a first pipe section communicating with the dehumidification heat exchanger, and a second pipe section communicating with the reheating heat exchanger, wherein the first throttling element is arranged in the second pipe section.

[0010] In some optional embodiments, the air conditioning system further comprises an online pipe section communicating between the outdoor heat exchanger and the first indoor communicating pipeline, and the online pipe section is provided with a third throttling element, wherein the online pipe section communicates with the first pipe section of the first indoor communicating pipeline.

[0011] In some optional embodiments, the second pipe section is provided with a discrete element for dispersing and mixing the refrigerant before flowing into the dehumidification heat exchanger.

[0012] In some optional embodiments, the discrete element comprises a filter screen.

[0013] In some optional embodiments, the dehumidification heat exchanger comprises a first refrigerant inlet and outlet communicating with the first pipe section, wherein the distance between the discrete element and the first refrigerant inlet and outlet is greater than or equal to a first preset distance.

[0014] In some optional embodiments, the first exhaust branch is provided with a first flow regulating element for regulating the amount of refrigerant flowing through the system four-way valve; and the second exhaust branch is provided with a second flow regulating element for regulating the amount of refrigerant flowing through the reheating multi-way valve.

[0015] In some optional embodiments, the air conditioning system further comprises a first controller configured to control the reheating multi-way valve to conduct the second exhaust branch, so that the refrigerant discharged by the compressor enters the first exhaust branch, flows into the outdoor heat exchanger through the system four-way valve, is condensed by the outdoor heat exchanger, and then enters the dehumidification heat exchanger through the third throttling element for dehumidification; and the refrigerant discharged by the compressor enters the second exhaust branch, flows into the reheating heat exchanger through the reheating multi-way valve, and heats the dehumidified air to realize the reheating dehumidification mode.

[0016] In some optional embodiments, the air conditioning system further comprises a second controller configured to control the reheating multi-way valve to block the second exhaust branch and conduct the second suction branch, so that the refrigerant discharged by the compressor enters the first exhaust branch, is condensed by the outdoor heat exchanger, and then flows into the dehumidification heat exchanger and the reheating heat exchanger, respectively, and then flows back to the compressor through the first suction branch and the second suction branch, respectively, to realize the refrigeration or dehumidification mode.

[0017] In some optional embodiments, the air conditioning system further comprises a third controller configured to control the reheating multi-way valve to conduct the second exhaust branch, and adjust the opening degree of the first throttling element arranged between the reheating heat exchanger and the dehumidification heat exchanger to the maximum opening degree, so that the refrigerant discharged by the compressor enters the first exhaust branch and enters the dehumidification heat exchanger through the system four-way valve, and enters the second exhaust branch and enters the reheating heat exchanger through the reheating multi-way valve, and the refrigerant flowing out of the dehumidification heat exchanger and the reheating heat exchanger flows back to the compressor through the outdoor heat exchanger, to realize the heating mode.

[0018] The air conditioning system provided by the embodiments of the present disclosure can achieve the following technical effects:

[0019] The air conditioning system provided by the embodiments of the present disclosure comprises a compressor, a system four-way valve, a reheating multi-way valve, an outdoor heat exchanger and an indoor heat exchange assembly. The suction port of the compressor is provided with a first suction branch and a second suction branch, and the exhaust port is provided with a first exhaust branch and a second exhaust branch. The system four-way valve is communicated with the first suction branch and the first exhaust branch, and the reheating multi-way valve is communicated with the second suction branch and the second exhaust branch. The indoor heat exchange assembly comprises a dehumidification heat exchanger and a reheating heat exchanger, and a first throttling element is arranged between the dehumidification heat exchanger and the reheating heat exchanger.

[0020] When the air conditioning system operates in the constant temperature dehumidification mode, part of the refrigerant of the compressor can enter the outdoor heat exchanger through the first exhaust branch, and then enter the dehumidification heat exchanger for dehumidification; and another part of the refrigerant can enter the reheating heat exchanger through the second exhaust branch to reheat the dehumidified air.

[0021] It can be seen that, in the air conditioning system provided by the embodiments of the present disclosure, the refrigerant enters the dehumidification heat exchanger and the reheating heat exchanger through different branches, so that the heat exchange capacity of the dehumidification heat exchanger and the reheating heat exchanger can be adjusted by adjusting the amount of refrigerant entering the different branches, and then the adjusted temperature and humidity can be more in line with the requirements of the user, constant temperature dehumidification, or even temperature rise dehumidification is realized.

[0022] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitation, and wherein:

[0024] Figure 1 is a schematic diagram of an air conditioning system provided by an embodiment of the present disclosure;

[0025] Figure 2 is a partial schematic diagram of an air conditioning system provided by an embodiment of the present disclosure;

[0026] Figure 3 is a schematic diagram of another air conditioning system provided by an embodiment of the present disclosure;

[0027] Figure 4 is a refrigerant flow schematic diagram of an air conditioning system provided by an embodiment of the present disclosure;

[0028] Figure 5 is a refrigerant flow schematic diagram of another air conditioning system provided by an embodiment of the present disclosure;

[0029] Figure 6 is a refrigerant flow schematic diagram of another air conditioning system provided by an embodiment of the present disclosure;

[0030] Figure 7 is a schematic diagram of an air conditioning system provided by an embodiment of the present disclosure;

[0031] Figure 8 is a refrigerant flow schematic diagram of another air conditioning system provided by an embodiment of the present disclosure;

[0032] Figure 9 is a refrigerant flow schematic diagram of another air conditioning system provided by an embodiment of the present disclosure;

[0033] Figure 10 is a refrigerant flow schematic diagram of another air conditioning system provided by an embodiment of the present disclosure.

[0034] Reference signs:

[0035] 1: compressor; 11: discharge port; 111: first discharge branch; 112: second discharge branch; 12: suction port; 121: first suction branch; 122: second suction branch; 123: communication electromagnetic valve; 1111: first flow regulating element; 1121: second flow regulating element; 1201: first cylinder; 1202: second cylinder;

[0036] 21: system four-way valve; 22: reheating multi-way valve;

[0037] 3: outdoor heat exchanger; 301: on-line pipe section; 302: third throttling element;

[0038] 41: dehumidification heat exchanger; 42: reheating heat exchanger; 401: first pipe section; 402: second pipe section; 403: first throttling element; 404: second throttling element. DETAILED DESCRIPTION

[0039] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below with reference to the accompanying drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a sufficient understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0040] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances in order to describe the embodiments of the present disclosure herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0041] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned terms can also be used to represent other meanings, for example, the term "upper" can also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0042] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0043] Unless otherwise specified, the term "a plurality of" means two or more.

[0044] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the preceding and following objects. For example, A / B represents: A or B.

[0045] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B, which means: A or B, or, A and B, the three relationships.

[0046] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0047] The present disclosure provides an air conditioning system.

[0048] Optionally, the air conditioning system comprises a compressor 1, a system four-way valve 21, a reheating multi-way valve 22, an outdoor heat exchanger 3 and an indoor heat exchange assembly. The compressor 1 comprises a suction port 12 and a discharge port 11, the suction port 12 is provided with a first suction branch 121 and a second suction branch 122, and the discharge port 11 is provided with a first discharge branch 111 and a second discharge branch 112; the system four-way valve 21 is connected and communicated between the first discharge branch 111 and the first suction branch 121; the reheating multi-way valve 22 is connected and communicated between the second discharge branch 112 and the second suction branch 122; the outdoor heat exchanger 3 is connected and communicated with the system four-way valve 21; the indoor heat exchange assembly comprises a dehumidification heat exchanger 41 and a reheating heat exchanger 42, wherein one end of the dehumidification heat exchanger 41 is connected and communicated with the outdoor heat exchanger 3, the other end is connected and communicated with the system four-way valve 21, one end of the reheating heat exchanger 42 is connected and communicated with the reheating multi-way valve 22, and the other end is connected and communicated with the dehumidification heat exchanger 41. Wherein, a first indoor communication pipeline is arranged between the dehumidification heat exchanger 41 and the reheating heat exchanger 42, and the first indoor communication pipeline is provided with a first throttling element 403. As shown in Figures 1 to 6 .

[0049] The present disclosure provides an air conditioning system, and the indoor heat exchange assembly comprises a dehumidification heat exchanger 41 and a reheating heat exchanger 42 to perform dehumidification and reheating respectively. The refrigerant in the reheating heat exchanger 42 for reheating function comes from the second discharge branch 112 provided with the reheating multi-way valve 22, and the refrigerant in the dehumidification heat exchanger 41 for dehumidification function comes from the first discharge branch 111 provided with the system four-way valve 21. In this way, by adjusting the amount of refrigerant in the first discharge branch 111 and the second discharge branch 112 respectively, the heat exchange capacity of the dehumidification heat exchanger 41 and the reheating heat exchanger 42 can be adjusted, and the temperature in the dehumidification process is adjusted, realizing constant temperature dehumidification or temperature increasing dehumidification.

[0050] Optionally, the reheating multi-way valve 22 comprises a multi-way valve body component such as a three-way valve, a four-way valve, etc. The reheating multi-way valve can selectively conduct or block the second discharge branch or the second suction branch.

[0051] In the present disclosure, the first indoor communication pipeline connected between the dehumidification heat exchanger 41 and the reheating heat exchanger 42 is provided with a first throttling element 403. Optionally, the length of the first indoor communication pipeline is greater than or equal to a preset length, so that the gas-liquid mixing degree of the refrigerant flowing through the first throttling element 403 is improved before flowing into the dehumidification heat exchanger 41. Optionally, the first throttling element 403 can be an electronic expansion valve. AsFigure 2 As shown.

[0052] Optionally, the distance between the reheating heat exchanger 42 and the dehumidification heat exchanger 41 is less than or equal to the first preset distance.

[0053] In the embodiments of the present disclosure, the reheating heat exchanger 42 and the dehumidification heat exchanger 41 are arranged in the shell of the indoor heat exchanger, and the reheating heat exchanger 42 and the dehumidification heat exchanger 41 are arranged side by side between the air inlet and the air outlet of the shell, the reheating heat exchanger 42 is arranged close to the air outlet, and the dehumidification heat exchanger 41 is arranged close to the air inlet. In the embodiments, the distance between the reheating heat exchanger 42 and the dehumidification heat exchanger 41 is less than or equal to the first preset distance, so that the new air dehumidified by the dehumidification heat exchanger 41 can be warmed by the reheating heat exchanger 42 without flowing through a long path, thereby improving the reheating and dehumidification effect of the air conditioning system. At the same time, it is beneficial to realize the miniaturization of the indoor unit of the air conditioner.

[0054] Optionally, the heat exchange area of the reheating heat exchanger 42 is less than or equal to the heat exchange area of the outdoor heat exchanger 3.

[0055] Optionally, the heat exchange area of the dehumidification heat exchanger 41 is greater than or equal to the heat exchange area of the reheating heat exchanger 42.

[0056] When the air conditioning system operates in the constant temperature dehumidification mode, the refrigerant of the outdoor heat exchanger 3 flows into the dehumidification heat exchanger 41, and the refrigerant of the reheating heat exchanger 42 also flows into the dehumidification heat exchanger 41. In the embodiments, the heat exchange area of the dehumidification heat exchanger 41 is greater than the heat exchange area of the reheating heat exchanger 42, thereby improving the operation stability of the air conditioning system.

[0057] Optionally, the length of the dehumidification heat exchanger 41 is the same as the length of the reheating heat exchanger 42; and / or, the width of the dehumidification heat exchanger 41 is the same as the width of the reheating heat exchanger 42.

[0058] The area of the heat exchanger is the area formed by the length and the width of the heat exchanger. In the embodiments of the present disclosure, the length and the width of the dehumidification heat exchanger 41 and the reheating heat exchanger 42 are the same, so that the area of the two heat exchangers through which the air flows is the same, thereby improving the heat exchange efficiency of the dehumidification heat exchanger 41 and the reheating heat exchanger 42. Optionally, the thickness of the dehumidification heat exchanger 41 is greater than the thickness of the reheating heat exchanger 42.

[0059] Optionally, the first indoor communication pipeline includes a first pipe segment 401 connected with the dehumidification heat exchanger 41, and a second pipe segment 402 connected with the reheating heat exchanger 42, wherein a first throttling element 403 is arranged in the second pipe segment 402. As shown. Figure 2

[0060] ​In this embodiment, the first throttling element 403 is arranged in the second pipe section 402 which is directly communicated with the reheating heat exchanger 42. Optionally, the first throttling element 403 can be an electronic expansion valve.

[0061] Optionally, the air conditioning system further comprises an on-line pipe section 301 which is communicated between the outdoor heat exchanger 3 and the first indoor communication pipe, and the on-line pipe section 301 is provided with a third throttling element 302, wherein the on-line pipe section 301 is communicated with the first pipe section 401 of the first indoor communication pipe. As Figure 2 shown.

[0062] The on-line pipe section 301 which is communicated between the outdoor heat exchanger 3 and the first indoor communication pipe is provided with the third throttling element 302, and the on-line pipe section 301 is communicated with the first pipe section 401 of the first indoor communication pipe, so that the refrigerant of the outdoor heat exchanger 3 can flow into the dehumidification heat exchanger 41 without flowing through the first throttling element 403 after flowing through the third throttling element 302. Optionally, the third throttling element 302 can be an electronic expansion valve.

[0063] Optionally, the second pipe section 402 is provided with a discrete element for dispersing and mixing the refrigerant before flowing into the dehumidification heat exchanger 41. The discrete element includes a filter screen.

[0064] When the dehumidification heat exchanger 41 serves as an evaporator, the refrigerant entering the dehumidification heat exchanger 41 is usually in a gas-liquid mixed state. In the embodiment of the present disclosure, the second pipe section 402 is provided with a discrete element, which improves the gas-liquid mixing degree of the refrigerant in the gas-liquid mixed state, and further improves the stability of the heat exchange capacity of the dehumidification heat exchanger 41.

[0065] Optionally, the dehumidification heat exchanger 41 comprises a first refrigerant inlet and outlet which is communicated with the first pipe section 401, wherein the distance between the discrete element and the first refrigerant inlet and outlet is greater than or equal to a first preset distance.

[0066] Optionally, the first preset distance is greater than or equal to 30 mm.

[0067] Optionally, the first exhaust branch 111 is provided with a first flow adjusting element 111 to adjust the amount of refrigerant flowing through the system four-way valve 21; and the second exhaust branch 112 is provided with a second flow adjusting element 1121 to adjust the amount of refrigerant flowing through the reheating multi-way valve 22. As Figure 3 shown.

[0068] For example, when the air conditioning system runs the dehumidification process, the current indoor temperature of the user is reduced by 3℃ or even more than the initial indoor temperature. It is considered that the indoor temperature of the user is reduced during the dehumidification process. At this time, the amount of refrigerant in the second exhaust branch 112 can be increased, the amount of refrigerant entering the reheating heat exchanger 42 is increased, and the amount of refrigerant in the first exhaust branch 111 is reduced, and the amount of refrigerant entering the dehumidification heat exchanger 41 is reduced, so as to increase the indoor temperature of the user.

[0069] Alternatively, when the air conditioning system runs the dehumidification mode, first, enter the temperature rising stage, adjust the opening degree of the second flow regulating element 1121, and adjust the opening degree of the first flow regulating element 1111, so that the opening degree of the second flow regulating element is greater than the opening degree of the first flow regulating element 1111. In this way, in the temperature rising stage, the indoor temperature of the user is appropriately raised by the reheating heat exchanger 42, for example, by 2-5℃. At this time, the increased temperature can provide a certain temperature storage for the subsequent rapid dehumidification process. Secondly, enter the rapid dehumidification stage, adjust the opening degree of the first flow regulating element 1111 to be greater than or equal to the opening degree of the second flow regulating element 1121. This process mainly makes the dehumidification heat exchanger 41 quickly play the dehumidification function and quickly adjust the indoor humidity of the user. Finally, enter the temperature compensation stage. When the rapid dehumidification stage is completed, if the current indoor temperature is lower than the initial temperature, adjust the opening degree of the first flow regulating element 1111 to be less than the opening degree of the second flow regulating element 1121, so that the reheating heat exchanger 42 compensates the indoor temperature of the user.

[0070] Alternatively, the rapid dehumidification stage and the temperature compensation stage are alternately performed. In the rapid dehumidification stage and the temperature compensation stage provided by the embodiment of the present disclosure, the flow direction of the refrigerant is not changed. Based on this, the rapid dehumidification stage and the temperature compensation stage can be alternately and stably operated. For example, when the rapid dehumidification stage reduces the humidity by 10%, at this time, it can be detected whether the indoor temperature needs to be compensated. If so, the temperature compensation stage is operated at this time to improve the effect of temperature control in the dehumidification process.

[0071] Alternatively, the air conditioning system further comprises a first controller configured to control the reheating multi-way valve 22 to conduct the second exhaust branch 112, so that the refrigerant discharged by the compressor 1 enters the first exhaust branch 111 in one way, enters the outdoor heat exchanger 3 through the system four-way valve 21, condenses, enters the dehumidification heat exchanger 41 through the third throttling element 302, and dehumidifies. The other way of the refrigerant discharged by the compressor 1 enters the second exhaust branch 112, flows into the reheating heat exchanger 42 through the reheating multi-way valve 22, and heats the dehumidified air to realize the reheating dehumidification mode.

[0072] The air conditioning system can run a reheating dehumidification mode, a constant temperature dehumidification mode or a temperature increasing dehumidification mode. The reheating multi-way valve 22 is controlled to conduct the second exhaust branch 112, and the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 1 enters the outdoor heat exchanger 3 through the first exhaust branch 111, then flows into the dehumidification heat exchanger 41 to perform dehumidification, and the other part of the gaseous refrigerant enters the reheating heat exchanger 42 to heat the dehumidified air. The opening degree of the first flow regulating element 111 and the second flow regulating element 1121 can be adjusted to adjust the amount of refrigerant in the dehumidification heat exchanger 41 and the reheating heat exchanger 42, and then the heat exchange capacity of the dehumidification heat exchanger 41 and the reheating heat exchanger 42 is adjusted, so that the reheating dehumidification, the constant temperature dehumidification or the temperature increasing dehumidification is realized. As shown in Figure 4 .

[0073] Optionally, when the air conditioning system runs in the constant temperature dehumidification mode or the temperature increasing dehumidification mode, the opening degree of the first throttling element 403 can be adjusted to the maximum.

[0074] Optionally, the air conditioning system further comprises a second controller configured to control the reheating multi-way valve 22 to block the second exhaust branch 112 and conduct the second suction branch 122, so that the refrigerant discharged from the compressor 1 enters the first exhaust branch 111, and after the condensation of the outdoor heat exchanger 3, the refrigerant flows into the dehumidification heat exchanger 41 and the reheating heat exchanger 42 respectively, and then flows back to the compressor 1 through the first suction branch 121 and the second suction branch 122 respectively, so as to realize the refrigeration or dehumidification mode. As shown in Figure 5 .

[0075] When the air conditioning system runs in the refrigeration or dehumidification mode, the dehumidification heat exchanger 41 and the reheating heat exchanger 42 both act as evaporators to dehumidify or refrigerate. Optionally, when the air conditioning system runs in the refrigeration or dehumidification mode, the opening degree of the first throttling element 403 can be adjusted to the maximum.

[0076] Optionally, the air conditioning system further comprises a third controller configured to control the reheating multi-way valve 22 to conduct the second exhaust branch 112, and adjust the opening degree of the first throttling element 403 arranged between the reheating heat exchanger 42 and the dehumidification heat exchanger 41 to the maximum opening degree, so that the refrigerant discharged from the compressor 1 enters the first exhaust branch 111 and the second exhaust branch 112, and then enters the dehumidification heat exchanger 41 and the reheating heat exchanger 42 through the system four-way valve 21 and the reheating multi-way valve 22 respectively, and the refrigerant flowing out of the dehumidification heat exchanger 41 and the reheating heat exchanger 42 flows back to the compressor 1 through the outdoor heat exchanger 3, so as to realize the heating mode. As shown in Figure 6 .

[0077] When the air conditioning system runs in the heating mode, the dehumidification heat exchanger 41 and the reheating heat exchanger 42 both act as condensers to heat. Optionally, when the air conditioning system runs in the heating mode, the opening degree of the first throttling element 403 can be adjusted to the maximum.

[0078] The present disclosure also provides a constant temperature dehumidification air conditioning system. As shown in Figures 7 to 10 .

[0079] It can be understood that the embodiments of the air conditioning system described above can also be applied to the constant temperature dehumidification air conditioning system without conflict, which will not be described here again.

[0080] Optionally, the constant temperature dehumidification air conditioning system comprises a compressor 1, a system four-way valve 21, a reheating multi-way valve 22, an outdoor heat exchanger 3 and an indoor heat exchange assembly. The compressor 1 comprises a suction port 12 and a discharge port 11, the suction port 12 is provided with a first suction branch 121 and a second suction branch 122, and the discharge port 11 is provided with a first discharge branch 111 and a second discharge branch 112; the system four-way valve 21 is connected and communicated between the first discharge branch 111 and the first suction branch 121; the reheating multi-way valve 22 is connected and communicated between the second discharge branch 112 and the second suction branch 122; the outdoor heat exchanger 3 is connected and communicated with the system four-way valve 21; the indoor heat exchange assembly comprises a dehumidification heat exchanger 41 and a reheating heat exchanger 42, wherein one end of the dehumidification heat exchanger 41 is connected and communicated with the outdoor heat exchanger 3, the other end is connected and communicated with the system four-way valve 21, one end of the reheating heat exchanger 42 is connected and communicated with the reheating multi-way valve 22, and the other end is connected and communicated with the dehumidification heat exchanger 41. As shown in Figure 7 .

[0081] In this way, the communication electromagnetic valve 123 arranged between the two cylinders is opened to make the two cylinders conductive, and the communication electromagnetic valve 123 is closed to independently control the two cylinders.

[0082] Optionally, the compressor 1 comprises a first cylinder 1201 and a second cylinder 1202, wherein the first cylinder 1201 is connected and communicated with the first suction branch 121, and the second cylinder 1202 is connected and communicated with the second suction branch 122.

[0083] In the constant temperature dehumidification air conditioning system provided by the present disclosure, the compressor 1 is provided with two cylinders. According to the needs of system operation, the opening or closing of the communication electromagnetic valve 123 is adjusted to make the two cylinders of the compressor 1 conductive or independently controlled.

[0084] Optionally, a first indoor communication pipeline is arranged between the dehumidification heat exchanger 41 and the reheating heat exchanger 42, and the first indoor communication pipeline comprises a first pipe section 401 connected and communicated with the dehumidification heat exchanger 41 and a second pipe section 402 connected and communicated with the reheating heat exchanger 42, wherein the first pipe section 401 is provided with a second throttling element 404, and the second pipe section 402 is provided with a first throttling element 403. As shown in Figure 7 .

[0085] The communication pipe section of the dehumidification heat exchanger 41 and the reheating heat exchanger 42 is provided with a throttling element, so that the temperature of the refrigerant entering the two heat exchangers can be adjusted by adjusting the opening degree of the first throttling element 403 and the second throttling element 404 respectively, and the heat exchange effect of the heat exchanger is adjusted.

[0086] Optionally, the constant-temperature dehumidification air conditioning system further comprises an online pipe section 301 connected between the outdoor heat exchanger 3 and the first indoor communication pipe, and the online pipe section 301 is provided with a third throttling element 302, wherein the online pipe section 301 is connected to the pipe section between the first throttling element 403 and the second throttling element 404 of the first indoor communication pipe.

[0087] In the embodiment of the present disclosure, the refrigerant flowing through the third throttling element 302 can enter the reheating heat exchanger 42 after throttling by the first throttling element 403, or can enter the dehumidification heat exchanger 41 after throttling by the second throttling element 404.

[0088] Optionally, the constant-temperature dehumidification air conditioning system further comprises a first controller configured to control the reheating multi-way valve 22 to conduct the second exhaust branch 112, so that the refrigerant discharged by the compressor 1 enters the first exhaust branch 111 in one way, enters the outdoor heat exchanger 3 through the system four-way valve 21, is condensed and enters the dehumidification heat exchanger 41 through the second throttling element 404 to perform dehumidification; the refrigerant discharged by the compressor 1 enters the second exhaust branch 112 in another way, flows into the reheating heat exchanger 42 through the reheating multi-way valve 22 to heat the dehumidified air, so as to realize the reheating dehumidification mode. Figure 8 As shown.

[0089] When the constant-temperature dehumidification air conditioning system operates in the reheating dehumidification mode, the amount of refrigerant entering the dehumidification heat exchanger 41 and the reheating heat exchanger 42 can be adjusted by adjusting the opening degree of the first flow regulating element 111 arranged in the first exhaust branch 111 and the second flow regulating element 1121 arranged in the second exhaust branch 112, and the heat exchange capacity of the dehumidification heat exchanger 41 and the reheating heat exchanger 42 is adjusted, so as to realize the reheating dehumidification, constant-temperature dehumidification or heating dehumidification, and meet the user's demand for temperature in the dehumidification process.

[0090] Optionally, when the constant-temperature dehumidification air conditioning system operates in the constant-temperature dehumidification or heating dehumidification mode, the opening degree of the first throttling element 403 and the second throttling element 404 can be adjusted to the maximum.

[0091] Optionally, the constant temperature dehumidification air conditioning system further comprises a second controller configured to control the reheat multi-way valve 22 to block the second exhaust branch 112 and to open the second suction branch 122, so that the refrigerant discharged by the compressor 1 enters the first exhaust branch 111, and after condensation by the outdoor heat exchanger 3, flows into the dehumidification heat exchanger 41 and the reheat heat exchanger 42, respectively, and then flows back to the compressor 1 through the first suction branch 121 and the second suction branch 122, respectively, to realize the refrigeration or dehumidification mode. As shown in Figure 9 .

[0092] Optionally, when the constant temperature dehumidification air conditioning system operates in the refrigeration or dehumidification mode, the opening degree of the first throttling element 403 can be controlled to be smaller than that of the second throttling element 404; or the opening degree of the first throttling element 403 is controlled to be a preset opening degree, and the opening degree of the second throttling element 404 is adjusted to a maximum opening degree, at this time, the reheat heat exchanger 42 serves as a low-temperature heat exchanger, and the dehumidification heat exchanger 41 serves as a medium-temperature heat exchanger, realizing the dual-temperature evaporation refrigeration mode.

[0093] Optionally, the constant temperature dehumidification air conditioning system further comprises a third controller configured to control the reheat multi-way valve 22 to open the second exhaust branch 112 and to adjust the opening degrees of the first throttling element 403 and the second throttling element 404 arranged between the reheat heat exchanger 42 and the dehumidification heat exchanger 41 to maximum opening degrees, so that the refrigerant discharged by the compressor 1 enters the first exhaust branch 111 and enters the dehumidification heat exchanger 41 through the system four-way valve 21, and enters the reheat heat exchanger 42 through the reheat multi-way valve 22, and the refrigerant discharged by the dehumidification heat exchanger 41 and the reheat heat exchanger 42 flows back to the compressor 1 through the outdoor heat exchanger 3, to realize the heating mode. As shown in Figure 10 .

[0094] Optionally, when the constant temperature dehumidification air conditioning system operates in the heating mode, the opening degrees of the first throttling element 403 and the second throttling element 404 can be adjusted to maximum opening degrees.

[0095] It can be understood that, Figures 1 to 10 the upper arrowed dashed line represents indoor exhaust air, and the lower arrowed solid line represents indoor intake air.

[0096] The above description and drawings suffice to fully enable one skilled in the art to practice the embodiments of the present disclosure. Other embodiments can include structural and other changes. The embodiments are merely representative of possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be varied. Portions and features of some embodiments can be included in, or substituted for, portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and can be varied in a variety of ways. The scope of the present disclosure is limited only by the claims that follow.

Claims

1. An air conditioning system, characterized by, Comprises: A compressor comprising a suction port provided with a first suction branch and a second suction branch, and a discharge port provided with a first discharge branch and a second discharge branch; A system four-way valve connected between the first discharge branch and the first suction branch; A reheating multi-way valve connected between the second discharge branch and the second suction branch; An outdoor heat exchanger connected to the system four-way valve; An indoor heat exchange assembly comprising a dehumidification heat exchanger and a reheating heat exchanger, wherein one end of the dehumidification heat exchanger is connected to the outdoor heat exchanger, the other end is connected to the system four-way valve, one end of the reheating heat exchanger is connected to the reheating multi-way valve, and the other end is connected to the dehumidification heat exchanger, Wherein, a first indoor communication pipeline is provided between the dehumidification heat exchanger and the reheating heat exchanger, and the first indoor communication pipeline is provided with a first throttling element.

2. The air conditioning system of claim 1, wherein: The first indoor communication pipeline comprises a first pipe section connected to the dehumidification heat exchanger, and a second pipe section connected to the reheating heat exchanger, Wherein, the first throttling element is arranged in the second pipe section.

3. The air conditioning system of claim 2, wherein, Further comprising: An online pipe section connected between the outdoor heat exchanger and the first indoor communication pipeline, and the online pipe section is provided with a third throttling element, Wherein, the online pipe section is connected to the first pipe section of the first indoor communication pipeline.

4. The air conditioning system of claim 3, wherein: The second pipe section is provided with a discrete element for dispersing and mixing the refrigerant before flowing into the dehumidification heat exchanger.

5. The air conditioning system of claim 4, wherein: The discrete element comprises a filter screen.

6. The air conditioning system of claim 4, wherein: The dehumidification heat exchanger comprises a first refrigerant inlet and outlet connected to the first pipe section, Wherein, the distance between the discrete element and the first refrigerant inlet and outlet is greater than or equal to a first predetermined distance.

7. The air conditioning system of claim 1, wherein: The first discharge branch is provided with a first flow regulating element to regulate the amount of refrigerant flowing through the system four-way valve; The second discharge branch is provided with a second flow regulating element to regulate the amount of refrigerant flowing through the reheating multi-way valve.

8. The air conditioning system according to any one of claims 1 to 7, wherein Further comprising: A first controller configured to control the reheating multi-way valve to conduct the second discharge branch, so that the refrigerant discharged by the compressor enters the first discharge branch, flows into the outdoor heat exchanger through the system four-way valve, is condensed through the third throttling element and enters the dehumidification heat exchanger for dehumidification; the other way of the refrigerant discharged by the compressor enters the second discharge branch, flows into the reheating heat exchanger through the reheating multi-way valve, and warms the dehumidified air to realize the reheating dehumidification mode.

9. The air conditioning system of claim 8, wherein, Further comprising: A second controller configured to control the reheating multi-way valve to block the second discharge branch and conduct the second suction branch, so that the refrigerant discharged by the compressor enters the first discharge branch, is condensed by the outdoor heat exchanger, and then flows into the dehumidification heat exchanger and the reheating heat exchanger, respectively, and then flows back to the compressor through the first suction branch and the second suction branch, respectively, to realize the refrigeration or dehumidification mode.

10. The air conditioning system of claim 9, wherein, Further comprising: The third controller is configured to control the reheating multi-way valve to conduct the second exhaust branch, and adjust the opening degree of the first throttling element arranged between the reheating heat exchanger and the dehumidification heat exchanger to the maximum opening degree, so that the refrigerant discharged by the compressor enters the first exhaust branch and the second exhaust branch, enters the dehumidification heat exchanger through the system four-way valve, enters the reheating heat exchanger through the reheating multi-way valve, and the refrigerant flowing out of the dehumidification heat exchanger and the reheating heat exchanger flows back to the compressor through the outdoor heat exchanger, to realize the heating mode.

Images