Heat exchange system and heat exchange device

Abstract

The utility model discloses a heat exchange system and a heat exchange device. The heat exchange system comprises a compression device, a switching device, a first heat exchange device, a second heat exchange device and a heat energy exchange device. The first heat exchange device is provided with a first heat exchange channel; the second heat exchange device is provided with a second heat exchange channel; the compression device is connected with the heat energy exchange device, the first heat exchange channel and the second heat exchange channel through the switching device, and the switching device is at least used for controlling the compression device, the heat energy exchange device, the first heat exchange channel and the second heat exchange channel to form a heat exchange circulation loop. The utility model provides a heat exchange system which is simple in structure and can realize multiple functions at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange devices, in particular to a heat exchange system and a heat exchange device. Background Art

[0002] Existing heat exchange systems, such as air conditioning systems, generally have an evaporator and a condenser, which make the functions that the existing heat exchange systems can achieve relatively simple. In order to increase the functions, it is usually necessary to add an additional set of equipment with corresponding functions. This makes the structure of the existing heat exchange system complex and the applicability poor. Utility Model Content

[0003] The main purpose of the utility model is to provide a heat exchange system with a simple structure and capable of realizing multiple functions simultaneously.

[0004] To achieve the above-mentioned purpose, the utility model provides a heat exchange system, which includes a compression device, a switching device, a first heat exchange device, a second heat exchange device and a heat energy exchange device;

[0005] The first heat exchange device has a first heat exchange channel;

[0006] The second heat exchange device has a second heat exchange channel;

[0007] The compression device is connected to the heat energy exchange device, the first heat exchange channel and the second heat exchange channel via the switching device, and the switching device is at least used to control the compression device, the heat energy exchange device, the first heat exchange channel and the second heat exchange channel to form a heat exchange circulation loop.

[0008] In one embodiment, the heat exchange circulation loop includes a first circulation loop, in which the compression device is sequentially connected to the heat energy exchange device, the first heat exchange channel and the second heat exchange channel via the switching device.

[0009] In one embodiment, the switching device includes a first connecting pipe, the first connecting pipe is connected to the first circulation loop, and the compression device is connected to the first connecting pipe, the first heat exchange channel and the second heat exchange channel in sequence through the switching device to form a second circulation loop.

[0010] In one embodiment, in the first circulation loop, the switching device is connected to a first end of the heat exchange device through a first pipeline, and a second end of the heat exchange device is connected to a second end of the first heat exchange channel through a second pipeline;

[0011] In the second circulation loop, the first end of the first connecting pipe is connected to the first pipeline, and the second end of the first connecting pipe is connected to the second pipeline.

[0012] In one embodiment, the switching device further includes a first valve body and a second valve body, wherein the first valve body is disposed on the first connecting pipe, and the second valve body is disposed on the first pipeline connecting the first end of the first connecting pipe and the first end of the heat exchange device.

[0013] In one embodiment, in the first circulation loop and / or the second circulation loop, the first end of the first heat exchange channel is connected to the first end of the second heat exchange channel via a third pipeline;

[0014] The switching device includes a first throttling member, and the first throttling member is arranged on the third pipeline.

[0015] In one embodiment, in the first circulation loop, the second end of the heat exchange device is connected to the second end of the first heat exchange channel through a second pipeline;

[0016] The switching device includes a second throttling member, and the second throttling member is arranged on the second pipeline.

[0017] In one embodiment, the heat exchange circulation loop includes a third circulation loop, in which the compression device is sequentially connected to the heat energy exchange device, the second heat exchange channel and the first heat exchange channel via the switching device.

[0018] In one embodiment, the switching device includes a third valve body and a fourth valve body, the third valve body is arranged in the third circulation loop and is located on the fourth pipeline connecting the second end of the heat energy exchange device and the second end of the second heat exchange channel; the fourth valve body is arranged in the first circulation loop and is located on the second pipeline connecting the second end of the heat energy exchange device and the second end of the first heat exchange channel.

[0019] In one embodiment, the switching device includes a fifth valve body, and the fifth valve body is disposed in the third circulation loop and located on a fifth pipeline connecting the first end of the second heat exchange channel and the second end of the first heat exchange channel.

[0020] In one embodiment, the first end of the fifth pipeline is connected to the second pipeline between the fourth valve body and the second end of the first heat exchange channel; the switching device includes a second throttling device, which is arranged on the second pipeline and located between the first end of the fifth pipeline and the second end of the first heat exchange channel.

[0021] In one embodiment, in the first circulation loop, the first end of the first heat exchange channel is connected to the first end of the second heat exchange channel through a third pipeline; the switching device includes a sixth valve body, the sixth valve body is arranged on the third pipeline, and the second end of the fifth pipeline is connected to the third pipeline between the sixth valve body and the first end of the second heat exchange channel.

[0022] In one embodiment, the switching device includes a seventh valve body, and the seventh valve body is arranged in the third circulation loop and is located on a sixth pipeline connecting the first end of the first heat exchange channel and the switching device.

[0023] In one embodiment, the switching device is connected to the second end of the second heat exchange channel via a seventh pipeline, and the switching device further includes an eighth valve body, and the eighth valve body is disposed on the seventh pipeline.

[0024] In one embodiment, the first heat exchange device further has a third heat exchange channel, and the second heat exchange device further has a fourth heat exchange channel; the compression device is connected to the third heat exchange channel and the fourth heat exchange channel in sequence through the switching device to form a fourth circulation loop.

[0025] In one embodiment, the compression device has a first exhaust port, a second exhaust port and an air intake port, the first exhaust port and the air intake port are connected to the heat exchange circulation loop; the second exhaust port and the air intake port are connected to the fourth circulation loop.

[0026] In one embodiment, the compression device is a double-cylinder double-suction double-row compressor, and the intake port includes a first sub-intake port and a second sub-intake port, the first sub-intake port is connected to the heat exchange circulation loop; the second sub-intake port is connected to the fourth circulation loop.

[0027] In one embodiment, the switching device includes a first reversing valve and a second reversing valve, the first reversing valve is connected to the heat exchange circulation loop to change the flow direction of the heat exchange medium in the heat exchange circulation loop; the second reversing valve is connected to the fourth circulation loop to change the flow direction of the heat exchange medium in the fourth circulation loop.

[0028] In one embodiment, the switching device includes a third throttling member, which is disposed in the fourth circulation loop and located between the third heat exchange channel and the fourth heat exchange channel;

[0029] And / or, when the heat exchange medium discharged from the compression device flows through the heat energy exchange device to condense and release heat and flows through the fourth heat exchange channel to condense and release heat, the pressure of the heat exchange medium flowing into the heat energy exchange device is greater than the pressure of the heat exchange medium flowing into the fourth heat exchange channel.

[0030] In one embodiment, the first heat exchange channel and the third heat exchange channel are arranged in the same shell and are heat exchanged with each other; and / or, the second heat exchange channel and the fourth heat exchange channel are arranged in the same shell and are heat exchanged with each other.

[0031] The utility model also provides a heat exchange device, which includes the heat exchange system as described above.

[0032] The heat exchange system of the utility model includes a compression device, a switching device, a first heat exchange device, a second heat exchange device and a heat energy exchange device. The installation positions of the first heat exchange device, the second heat exchange device and the heat energy exchange device are not limited. The compression device is connected to the heat energy exchange device, the first heat exchange channel and the second heat exchange channel through the switching device. The switching device is at least used to control the compression device, the heat energy exchange device, the first heat exchange channel and the second heat exchange channel to form a heat exchange circulation loop. In this way, it is only necessary to connect the compression device to the heat energy exchange device, the first heat exchange channel and the second heat exchange channel through the switching device to form a heat exchange circulation loop, so that the heat exchange system forms at least a first working mode and / or a second working mode. In the first working mode, the heat exchange medium flows through the heat energy exchange device to condense and release heat to make hot water or store heat, and flows through at least one of the first heat exchange channel and the second heat exchange channel to evaporate and absorb heat to perform refrigeration. That is, in the first working mode, the heat exchange medium flows through one or both of the first heat exchange channel and the second heat exchange channel to evaporate and absorb heat to perform indoor and / or outdoor refrigeration, or the heat exchange medium can flow through the first heat exchange channel. One of the channel and the second heat exchange channel condenses and releases heat to perform heating, and the other evaporates and absorbs heat to perform cooling. In this way, during the flow of the heat exchange medium, the heat exchange system simultaneously realizes the functions of heating water and cooling the first heat exchange device; or, the heat exchange system simultaneously realizes the functions of heating water, cooling the first heat exchange device and cooling the second heat exchange device; or, the heat exchange system simultaneously realizes the functions of heating water, heating the first heat exchange device and cooling the second heat exchange device; or, the heat exchange system simultaneously realizes the functions of heating water, heating the first heat exchange device and cooling the second heat exchange device; or, the heat exchange system simultaneously realizes the functions of heating water, heating the second heat exchange device and cooling the first heat exchange device. In the second working mode, the heat exchange medium flows through the second heat exchange channel and the first heat exchange channel to condense and release heat to perform heating. At this time, it can be used for outdoor unit defrosting and indoor unit heating. The heat exchange medium flows through the heat energy exchange device to evaporate and absorb heat to perform heat exchange. In this way, during the flow of the heat exchange medium, the heat exchange system simultaneously realizes the functions of heating the second heat exchange device and heating the first heat exchange device. The order of heating is not limited, that is, the heat exchange system simultaneously realizes the functions of defrosting the outdoor unit and heating the indoor unit. It can be seen that the utility model provides a heat exchange system with a simple structure and capable of realizing multiple functions simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0034] Figure 1 It is a structural schematic diagram of an embodiment of a heat exchange system of the utility model;

[0035] Figure 2 It is a structural schematic diagram of the heat exchange system of the utility model in the first hot water making mode and the first heating mode;

[0036] Figure 3 It is a structural schematic diagram of the heat exchange system of the utility model in the first rapid heating mode and the first heating mode;

[0037] Figure 4 It is a structural schematic diagram of the heat exchange system of the utility model in the first defrosting mode and the first heating mode;

[0038] Figure 5 It is a structural schematic diagram of the heat exchange system of the utility model in the first rapid cooling mode and the first refrigeration mode;

[0039] Figure 6 It is a structural schematic diagram of the heat exchange system of the utility model in the second hot water making mode and the first cooling mode;

[0040] Figure 7 It is a structural schematic diagram of another embodiment of the heat exchange system of the present utility model.

[0041] Description of Figure Numbers:

[0042]

[0043]

[0044] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0048] Existing heat exchange systems, such as air conditioning systems, generally have an evaporator and a condenser, which make the functions that the existing heat exchange systems can achieve relatively simple. In order to increase the functions, it is usually necessary to add an additional set of equipment with corresponding functions. This makes the structure of the existing heat exchange system complex and the applicability poor.

[0049] In order to solve the above problems, the utility model provides a heat exchange system and a heat exchange device including the heat exchange system. The heat exchange system has a simple structure and can realize multiple functions simultaneously.

[0050] See also Figure 1 and Figure 7 In an embodiment of a heat exchange system 10 of the utility model, the heat exchange system 10 includes a compression device 100, a switching device 200, a first heat exchange device 300, a second heat exchange device 400 and a heat energy exchange device 500; the first heat exchange device 300 has a first heat exchange channel 310; the second heat exchange device 400 has a second heat exchange channel 410; the compression device 100 is connected to the heat energy exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410 via the switching device 200, and the switching device 200 is at least used to control the compression device 100, the heat energy exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410 to form a heat exchange circulation loop.

[0051] It can be understood that the switching device 200 is at least used to control the compression device 100, the heat energy exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410 to form a heat exchange circulation loop, so that the heat exchange system forms at least a first working mode and / or a second working mode; in the first working mode, the heat exchange medium flows through the heat energy exchange device 500 to condense and release heat, and the heat exchange medium flows through at least one of the first heat exchange channel 310 and the second heat exchange channel 410 to evaporate and absorb heat; in the second working mode, the heat exchange medium flows through the second heat exchange channel 410 and the first heat exchange channel 310 to condense and release heat, and the heat exchange medium flows through the heat energy exchange device 500 to evaporate and absorb heat.

[0052] Furthermore, the compression device 100 is not limited to being a compressor, and only needs to be able to discharge the heat exchange medium. The heat exchange medium can be a refrigerant. The number of compressors can be one, two, or more, which is not limited here. The installation locations of the first heat exchange device 300, the second heat exchange device 400, and the heat energy exchange device 500 are not limited, and can be installed indoors, or of course, can also be installed outdoors, that is, the use scenarios of the first heat exchange device 300, the second heat exchange device 400, and the heat energy exchange device 500 are not limited. For example, the first heat exchange device 300 is an indoor unit, and the second heat exchange device 400 is an outdoor unit; or, the first heat exchange device 300 and the second heat exchange device 400 are both indoor units, and the first heat exchange device 300 and the second heat exchange device 400 are installed in different rooms indoors; the heat energy exchange device 500 can be a water heater or a heat storage device.

[0053] Furthermore, the first heat exchange device 300 and the second heat exchange device 400 have heat exchange channels, and the number of heat exchange channels can be one, two, or more, which is not specifically limited here. The heat energy exchange device 500 also has heat exchange channels, and the number of heat exchange channels can be one, two, or more. The heat exchange channel can be tubular or sheet-shaped, and of course can be in other shapes, which is not specifically limited here. The switching device 200 is used to control the flow of the heat exchange medium discharged from the compression device 100. The specific structure of the switching device 200 is further described in detail later, and will not be repeated here.

[0054] See also Figure 7The switching device 200 is used to control the heat exchange medium discharged from the compression device 100 to flow through at least two of the heat exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410, that is, the heat exchange medium can flow through any two of the heat exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410. Of course, the heat exchange medium can also flow through three of the heat exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410. As for the order in which the heat exchange medium flows through the heat exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410, it is not limited here. It is only necessary for the compression device 100 to be connected with the heat exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410 through the switching device 200 to form a heat exchange circulation loop. The specific method of connecting the switching device 200 with the heat exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410 will be described in detail later, and will not be repeated here.

[0055] For the convenience of introduction, the first heat exchange device 300 is defined as an indoor unit, the second heat exchange device 400 is defined as an outdoor unit, and the heat exchange device 500 is defined as a water heater for making hot water. In the first working mode, the heat exchange medium flows through the heat exchange device 500 and the first heat exchange channel 310, or the heat exchange medium flows through the heat exchange device 500 and the second heat exchange channel 410, or the heat exchange medium flows through the heat exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410. As for the order of the heat exchange medium flowing through, there is no limitation. It is only necessary to realize that the heat exchange medium flows through the heat exchange device 500 to condense and release heat, and the heat exchange medium flows through at least one of the first heat exchange channel 310 and the second heat exchange channel 410 to evaporate and absorb heat. That is, in the first working mode, the heat exchange medium flows through the heat exchange device 500 to condense and release heat to make hot water, and the heat exchange medium flows through the first heat exchange channel 310 to evaporate and absorb heat to cool the indoor machine; or, the heat exchange medium flows through the heat exchange device 500 to condense and release heat to make hot water, and the heat exchange medium flows through the second heat exchange channel 410 to evaporate and absorb heat to cool the outdoor machine; or, the heat exchange medium flows through the heat exchange device 500 to condense and release heat to make hot water, and the heat exchange medium flows through the first heat exchange channel 310 and the second heat exchange channel 410 to evaporate and absorb heat to cool the indoor machine and the outdoor machine The outdoor machine is cooled, and the order of cooling is not limited; or, the heat exchange medium flows through the heat energy exchange device 500 and the first heat exchange channel 310 to condense and release heat, and hot water is produced and the indoor machine is heated. The order of heating is not limited, and the heat exchange medium then flows through the second heat exchange channel 410 to evaporate and absorb heat, and the outdoor machine is cooled; or, the heat exchange medium flows through the heat energy exchange device 500 and the second heat exchange channel 410 to condense and release heat, and hot water is produced and the outdoor machine is heated. The order of heating is not limited, and the heat exchange medium then flows through the first heat exchange channel 310 to evaporate and absorb heat, and the indoor machine is cooled.

[0056] In the second working mode, the heat exchange medium flows through the second heat exchange channel 410 and the first heat exchange channel 310 to condense and release heat, and the outdoor unit heats the indoor unit. The heat exchange medium then flows through the heat energy exchange device 500 to evaporate and absorb heat. There is no limitation on the order in which the heat exchange medium flows through the second heat exchange channel 410 and the first heat exchange channel 310. That is, when the heat exchange medium flows through the second heat exchange channel 410, the outdoor unit defrosts, and when the heat exchange medium flows through the first heat exchange channel 310, the indoor unit heats the indoor unit. The heat exchange medium then flows through the heat energy exchange device to absorb heat and then flows back to the compression device 100. The heat exchange system simultaneously realizes the functions of outdoor unit defrosting and indoor heating.

[0057] The heat exchange system 10 of the utility model includes a compression device 100, a switching device 200, a first heat exchange device 300, a second heat exchange device 400 and a heat energy exchange device 500. The installation positions of the first heat exchange device 300, the second heat exchange device 400 and the heat energy exchange device 500 are not limited. The compression device 100 is connected to the heat energy exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410 through the switching device 200. The switching device 200 is at least used to control the compression device 100, the heat energy exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410 to form a heat exchange circulation loop. With such arrangement, it is only necessary for the compression device 100 to be connected to the heat energy exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410 via the switching device 200 to form a heat exchange circulation loop, so that the heat exchange system forms at least a first working mode and / or a second working mode. In the first working mode, the heat exchange medium flows through the heat energy exchange device 500 to condense and release heat to make hot water or store heat, and flows through at least one of the first heat exchange channel 310 and the second heat exchange channel 410 to evaporate and absorb heat to perform cooling. That is, in the first working mode, the heat exchange medium flows through one or both of the first heat exchange channel 310 and the second heat exchange channel 410 to evaporate and absorb heat to perform indoor and / or outdoor cooling, or the heat exchange medium can flow through the first heat exchange channel 310 and the second heat exchange channel 410 to evaporate and absorb heat to perform indoor and / or outdoor cooling. One of the channel 310 and the second heat exchange channel 410 condenses and releases heat to perform heating, and the other evaporates and absorbs heat to perform cooling. In this way, during the flow of the heat exchange medium, the heat exchange system simultaneously realizes the functions of heating water and cooling the first heat exchange device 300; or, the heat exchange system simultaneously realizes the functions of heating water and cooling the second heat exchange device 400; or, the heat exchange system simultaneously realizes the functions of heating water, cooling the first heat exchange device 300, and cooling the second heat exchange device 400; or, the heat exchange system simultaneously realizes the functions of heating water, heating the first heat exchange device 300, and cooling the second heat exchange device 400; or, the heat exchange system simultaneously realizes the functions of heating water, heating the second heat exchange device 400, and cooling the first heat exchange device 300. In the second working mode, the heat exchange medium flows through the second heat exchange channel 410 and the first heat exchange channel 310 to condense and release heat for heating. At this time, it can be used for outdoor unit defrosting and indoor unit heating. The heat exchange medium flows through the heat energy exchange device 500 to evaporate and absorb heat for heat exchange. In this way, during the flow of the heat exchange medium, the heat exchange system simultaneously realizes the heating functions of the second heat exchange device 400 and the first heat exchange device 300. The order of heating is not limited, that is, the heat exchange system simultaneously realizes the functions of outdoor unit defrosting and indoor unit heating. It can be seen that the utility model proposes a heat exchange system 10 with a simple structure and capable of realizing multiple functions at the same time.

[0058] The heat exchange system 10 has multiple working modes. Figures 2 to 6 The direction indicated by the arrow in the figure indicates the direction of flow of the heat exchange medium.

[0059] See also Figure 2 In one embodiment, the first working mode includes a first hot water making mode. In the first hot water making mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow through the heat energy exchange device 500 and the first heat exchange channel 310 in sequence, and then condenses and releases heat, and then flows into the second heat exchange channel 410 to evaporate and absorb heat.

[0060] It can be understood that in the first hot water making mode, the compression device 100 is connected with the heat energy exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410 in sequence through the switching device 200 to form a first circulation loop, and the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow along the first circulation loop, and the heat exchange medium flows through the heat energy exchange device 500 to condense and release heat to quickly make hot water, then flows through the first heat exchange channel 310 to condense and release heat to heat the room, then flows through the second heat exchange channel 410 to evaporate and absorb heat, and finally returns to the compression device 100. It can be seen that the heat exchange system 10 can simultaneously realize the functions of quickly making hot water and heating the room in the first hot water making mode, and the structure of the heat exchange system 10 is simple.

[0061] Furthermore, the heat exchange medium first passes through the heat energy exchange device 500 for the first heat release, and then passes through the first heat exchange channel 310 for the second heat release, so that the heat exchange medium can fully release heat and then pass through the second heat exchange channel 410 to evaporate and absorb heat, which is conducive to reducing the pressure drop loss of the heat exchange medium, thereby improving the heat utilization rate of the heat exchange medium, that is, this solution is conducive to increasing the supercooling degree of the heat exchange medium discharged by the compression device 100, thereby improving the energy efficiency of the heat exchange system 10. The use scenario of the first hot water making mode is not limited. In this solution, the use scenario of the first hot water making mode is winter, that is, the heat exchange system 10 of this solution has the functions of rapid hot water making and indoor heating in winter, thereby improving the applicability of the heat exchange system 10.

[0062] See also Figure 6 In one embodiment, the first working mode includes a second hot water making mode. In the second hot water making mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow through the heat energy exchange device 500 and the second heat exchange channel 410 in sequence, and then condenses and releases heat, and then flows into the first heat exchange channel 310 to evaporate and absorb heat.

[0063] It can be understood that in the second hot water making mode, the compression device 100 is connected with the heat energy exchange device 500, the second heat exchange channel 410 and the first heat exchange channel 310 in sequence through the switching device 200 to form a third circulation loop. The switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow along the third circulation loop. The heat exchange medium flows through the heat energy exchange device 500 to condense and release heat to quickly make hot water, then flows through the second heat exchange channel 410 to condense and release heat to release heat outdoors, then flows through the first heat exchange channel 310 to evaporate and absorb heat to cool indoors, and finally returns to the compression device 100. It can be seen that the heat exchange system 10 can simultaneously achieve the functions of quickly making hot water and cooling indoors in the second hot water making mode, and the structure of the heat exchange system 10 is simple.

[0064] Furthermore, the heat exchange medium first passes through the heat energy exchange device 500 for the first heat release, and then passes through the second heat exchange channel 410 for the second heat release, so that the heat exchange medium can fully release heat and then pass through the first heat exchange channel 310 to evaporate and absorb heat, which is conducive to reducing the pressure drop loss of the heat exchange medium, thereby improving the heat utilization rate of the heat exchange medium, that is, this solution is conducive to increasing the supercooling degree of the heat exchange medium discharged by the compression device 100, thereby improving the energy efficiency of the heat exchange system 10. The use scenario of the second hot water making mode is not limited. In this solution, the use scenario of the second hot water making mode is summer, that is, the heat exchange system 10 of this solution has the functions of rapid hot water making and indoor cooling in summer, thereby improving the applicability of the heat exchange system 10.

[0065] See also Figure 4 In one embodiment, the second working mode includes a first defrost mode. In the first defrost mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow through the second heat exchange channel 410 and the first heat exchange channel 310 in sequence, and then condenses and releases heat, and then flows into the heat energy exchange device 500 to evaporate and absorb heat.

[0066] It can be understood that, compared with the first hot water making mode, in the first defrost mode, the heat exchange medium flows along the first circulation loop, but the flow direction of the heat exchange medium is opposite, that is, in the first hot water making mode, the heat exchange medium flows through the heat energy exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410 in sequence; in the first defrost mode, the heat exchange medium flows through the second heat exchange channel 410, the first heat exchange channel 310 and the heat energy exchange device 500 in sequence.

[0067] Furthermore, in the first defrost mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow along the first circulation loop, and the heat exchange medium flows through the second heat exchange channel 410 to condense and release heat, and then flows through the first heat exchange channel 310 to condense and release heat, and then flows through the heat energy exchange device 500 to absorb heat, and finally returns to the compression device 100. It can be seen that in the first defrost mode, the heat exchange system 10 can simultaneously realize the functions of outdoor unit fast defrosting and indoor heating. The structure of the heat exchange system 10 is simple, that is, when the heat exchange medium flows along a circulation loop to perform outdoor fast defrosting, it can also perform indoor heating, and the indoor temperature will not decrease, thereby realizing the function of non-sensitive defrosting and ensuring that defrosting does not stop.

[0068] Furthermore, the heat exchange medium first releases heat through the second heat exchange channel 410 for the first time, and then releases heat through the first heat exchange channel 310 for the second time, so that the heat exchange medium can fully release heat before evaporating and absorbing heat through the heat energy exchange device 500, which is conducive to reducing the pressure drop loss of the heat exchange medium, thereby improving the heat utilization rate of the heat exchange medium, that is, this solution is conducive to increasing the supercooling degree of the heat exchange medium discharged by the compression device 100, thereby improving the energy efficiency of the heat exchange system 10. The use scenario of the first defrost mode is not limited. In this solution, the use scenario of the first defrost mode is winter, that is, the heat exchange system 10 of this solution has the functions of rapid defrosting of the outdoor unit and indoor heating in winter, thereby improving the applicability of the heat exchange system 10.

[0069] In one embodiment, the heat exchange system 10 enters the first defrost mode after running in the first working mode for a preset time.

[0070] It can be understood that when the heat exchange system 10 runs in the first working mode for a preset time, the heat exchange medium flows through the heat energy exchange device 500 to condense and release heat, so that the heat energy exchange device 500 has sufficient heat, that is, the heat energy exchange device 500 is stored with heat, and then the first defrost mode is performed. The heat energy exchange device 500 provides heat for the heat exchange medium so that the heat exchange medium can evaporate and absorb heat when flowing through the heat energy exchange device 500. At this time, the heat energy exchange device 500 acts as a heat storage device and has a relatively high temperature. Therefore, the evaporation temperature of the heat exchange medium is high, and the temperature flowing into the compression device 100 is also high, which is beneficial to reduce the pressure ratio of the compression device 100, thereby improving the energy efficiency of the heat exchange system 10. It can be seen that the heat for defrosting of the heat exchange system 10 in this scheme comes from the high-temperature and high-pressure heat exchange medium discharged from the compression device 100. The high-temperature and high-pressure heat exchange medium flows through the second heat exchange channel 410 to condense and release heat, and performs rapid outdoor unit defrosting, and then flows through the first heat exchange channel 310 to condense and release heat, and performs indoor heating, and then flows through the heat energy exchange device 500 to absorb the heat stored in the first working mode, and finally returns to the compression device 100, so that the functions of rapid outdoor unit defrosting and indoor heating can be realized at the same time. The structure of the heat exchange system 10 is simple. The heat exchange system 10 can also perform indoor heating when performing outdoor rapid defrosting, and the indoor temperature will not decrease. The heat energy exchange device 500 serves as a heat storage device, so that the heat exchange system 10 realizes the function of non-sensitive defrosting, ensuring that defrosting does not stop.

[0071] See also Figure 2 and Figure 4 In one embodiment, the heat exchange circulation loop includes a first circulation loop, in which the compression device 100 is connected to the heat energy exchange device 500, the first heat exchange channel 310 and the second heat exchange channel 410 in sequence through the switching device 200.

[0072] It can be understood that the switching device 200 is used to control the first circulation loop to operate in the first operating mode, and the heat exchange medium flows through the heat energy exchange device 500 and the first heat exchange channel 310 in sequence to condense and release heat, and then flows into the second heat exchange channel 410 to evaporate and absorb heat, so as to form a first hot water making mode (such as Figure 2 and / or, the switching device 200 is used to control the first circulation loop to operate in the second operating mode, and the heat exchange medium flows through the second heat exchange channel 410 and the first heat exchange channel 310 in sequence, condenses and releases heat, and then flows into the heat energy exchange device 500 to evaporate and absorb heat, so as to form a first defrosting mode (such as Figure 4 shown).

[0073] When the first circulation loop operates in the first hot water making mode, the heat exchange medium flows through the heat energy exchange device 500 to condense and release heat, and quickly makes hot water, then flows through the first heat exchange channel 310 to condense and release heat, and makes indoor heating, then flows through the second heat exchange channel 410 to evaporate and absorb heat, and finally returns to the compression device 100. It can be seen that the heat exchange system 10 can simultaneously achieve the functions of quick hot water making and indoor heating in the first hot water making mode, and the structure of the heat exchange system 10 is simple; and the heat exchange medium can fully release heat and then evaporate and absorb heat through the second heat exchange channel 410, which is conducive to reducing the pressure drop loss of the heat exchange medium, thereby improving the heat utilization rate of the heat exchange medium, that is, this solution is conducive to increasing the supercooling degree of the heat exchange medium discharged by the compression device 100, thereby improving the energy efficiency of the heat exchange system 10.

[0074] Furthermore, when the first circulation loop runs the first defrosting mode, the switching device 200 controls the flow direction of the heat exchange medium to be opposite to the flow direction in the first hot water making mode. In the first defrosting mode, the heat exchange medium flows through the second heat exchange channel 410 to condense and release heat, and performs rapid defrosting of the outdoor unit, then flows through the first heat exchange channel 310 to condense and release heat, and performs indoor heating, then flows through the heat energy exchange device 500 to absorb heat, and finally returns to the compression device 100. In this process, the heat energy exchange device 500 is a heat storage device, which has heat. The heat exchange device 500 can be stored with heat by running the first hot water making mode for a preset time. Of course, the heat exchange device 500 itself can also generate heat, which is not limited here. It can be seen that the heat exchange system 10 can realize the functions of rapid defrosting of the outdoor unit and indoor heating at the same time in the first defrosting mode. The structure of the heat exchange system 10 is simple, that is, when the heat exchange medium flows along a circulation loop to perform rapid outdoor defrosting, it can also perform indoor heating, and the indoor temperature will not decrease, thereby realizing the function of insensitive defrosting; and the heat exchange medium can fully release heat and then evaporate and absorb heat through the heat energy exchange device 500, which is conducive to reducing the pressure drop loss of the heat exchange medium, thereby improving the heat utilization rate of the heat exchange medium, that is, this scheme is conducive to increasing the supercooling of the heat exchange medium discharged by the compression device 100, thereby improving the energy efficiency of the heat exchange system 10.

[0075] See also Figure 2 , Figure 3 and Figure 5 In one embodiment, the switching device 200 includes a first connecting pipe 201, which is connected to the first circulation loop. The compression device 100 is connected to the first connecting pipe 201, the first heat exchange channel 310 and the second heat exchange channel 410 in sequence through the switching device 200 to form a second circulation loop.

[0076] It is understandable that the switching device 200 has a first rapid heating mode for making the second circulation loop work in a heating cycle and a first rapid cooling mode for making the second circulation loop work in a refrigeration cycle. The first connecting pipe 201 is connected to the first circulation loop, and both ends of the first connecting pipe 201 can be connected to both ends of the heat energy exchange device 500; or, one end of the first connecting pipe 201 is connected to one end of the heat energy exchange device 500, and the other end is connected to the pipeline in the first circulation loop; or, both ends of the first connecting pipe 201 are connected to the pipeline in the first circulation loop, and the specific details are not limited here.

[0077] Furthermore, the compression device 100 is connected with the first connecting pipe 201, the first heat exchange channel 310, and the second heat exchange channel 410 in sequence through the switching device 200 to form a second circulation loop. By providing the first connecting pipe 201, the heat exchange medium can flow along the second circulation loop without passing through the heat energy exchange device 500. Figure 3 As shown, in the first rapid heating mode, the heat exchange medium flows along the second circulation loop, first flows through the first heat exchange channel 310 to condense and release heat to heat the room, then flows through the second heat exchange channel 410 to evaporate and absorb heat, and finally returns to the compression device 100, thereby achieving rapid indoor heating. Figure 5 As shown, in the first rapid cooling mode, the heat exchange medium flows along the second circulation loop, first flows through the second heat exchange channel 410 to condense and release heat, then flows through the first heat exchange channel 310 to evaporate and absorb heat, performs indoor cooling, and finally returns to the compression device 100, thereby achieving rapid indoor cooling. It can be seen that by setting the first connecting pipe 201 to be connected to the first circulation loop, rapid indoor heating or cooling can be achieved, thereby improving the applicability of the heat exchange system 10.

[0078] See also Figure 3 In one embodiment, in the first rapid heating mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow through the first connecting pipe 201 and the first heat exchange channel 310 in sequence to condense and release heat, and then flow into the second heat exchange channel 410 to evaporate and absorb heat; in the first rapid cooling mode (such as Figure 5 As shown), the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow through the second heat exchange channel 410 to condense and release heat, and the first heat exchange channel 310 to evaporate and absorb heat, and then flow into the first connecting pipe 201.

[0079] It is understandable that the use scenarios of the first rapid heating mode and the first rapid cooling mode are not limited. In this solution, the use scenario of the first rapid heating mode is winter, that is, in winter, if there is no need to make hot water, there is no need to use the heat exchange device 500 to make hot water, and the heat exchange medium flows through the first connecting pipe 201 and directly flows into the first heat exchange channel 310 to condense and release heat to heat the room; or, after the heat exchange system 10 runs the first hot water mode for a preset time, it enters the first rapid heating mode, so that the switching device 200 controls the heat exchange medium discharged by the compression device 100 to flow through the heat exchange device 500 to condense and release heat to make hot water. When the temperature of the hot water meets the preset temperature, the heat exchange medium can flow directly through the first heat exchange channel 310 without passing through the heat exchange device 500 to condense and release heat to heat the room. It can be seen that the first rapid heating mode is conducive to rapid heating of the room.

[0080] Furthermore, in this solution, the first rapid cooling mode is used in summer, that is, in the heat exchange system 10 of this solution, in summer, the heat exchange medium flows through the second heat exchange channel 410 to condense and release heat, then flows through the first heat exchange channel 310 to evaporate and absorb heat, performs indoor cooling, and finally quickly returns to the compression device 100 along the first connecting pipe 201, thereby achieving rapid indoor cooling. It can be seen that the heat exchange system 10 also has the first rapid heating mode and the first rapid cooling mode and can achieve rapid indoor heating or cooling, thereby improving the applicability of the heat exchange system 10.

[0081] See also Figure 2 In one embodiment, in the first circulation loop, the switching device 200 is connected to the first end of the heat exchange device 500 through the first pipeline 202, and the second end of the heat exchange device 500 is connected to the second end of the first heat exchange channel 310 through the second pipeline 203; in the second circulation loop, the first end of the first connecting pipe 201 is connected to the first pipeline 202, and the second end of the first connecting pipe 201 is connected to the second pipeline 203. In this way, both ends of the first connecting pipe 201 are connected to the pipeline in the first circulation loop. When installing the first connecting pipe 201, the first connecting pipe 201 can be installed without changing the pipeline arrangement of the first circulation loop. The connection position of the first connecting pipe 201 is easy to install, thereby optimizing the structure of the heat exchange system 10.

[0082] See also Figures 1 to 3In one embodiment, the switching device 200 further includes a first valve body 211 and a second valve body 212, wherein the first valve body 211 is disposed on the first connecting pipe 201, and the second valve body 212 is disposed on the first pipeline 202 connecting the first end of the first connecting pipe 201 and the first end of the heat exchange device 500. When the first circulation loop is in operation, the first valve body 211 is closed and the second valve body 212 is opened (e.g., Figure 2 and Figure 4 When the second circulation loop is running, the first valve body 211 is opened and the second valve body 212 is closed (as shown); Figure 3 and Figure 5 shown).

[0083] It can be understood that the switching device 200 includes a controller, which is electrically connected to the first valve body 211 and the second valve body 212 . The controller can control the opening and closing of the first valve body 211 , and the controller can control the opening and closing of the second valve body 212 .

[0084] Further, the first valve body 211 is provided on the first connecting pipe 201, and the second valve body 212 is provided on the first pipeline 202. When the first valve body 211 is closed, the first valve body 211 prevents the heat exchange medium from flowing along the first connecting pipe 201, which is equivalent to disconnecting the second circulation loop. At this time, the second valve body 212 is opened, and the heat exchange medium can flow along the first pipeline 202 of the first circulation loop. Similarly, when the second valve body 212 is closed, the second valve body 212 prevents the heat exchange medium from flowing along the first pipeline 202, which is equivalent to disconnecting the first circulation loop. At this time, the first valve body 211 is opened, and the heat exchange medium can flow along the first connecting pipe 201 of the second circulation loop.

[0085] It can be seen that by setting the first valve body 211, the on-off of the first connecting pipe 201 can be controlled, thereby controlling the on-off of the second circulation loop; by setting the second valve body 212, the on-off of the first pipeline 202 can be controlled, thereby controlling the on-off of the first circulation loop, that is, by setting the opening or closing of the first valve body 211 and the second valve body 212, the heat exchange system 10 can be switched between the first hot water making mode and the first defrosting mode formed by the first circulation loop, and the first rapid heating mode and the first rapid cooling mode formed by the second circulation loop, thereby realizing multiple functions. For example, in the first hot water making mode, the first valve body 211 is closed and the second valve body 212 is opened; in the first defrosting mode, the first valve body 211 is closed and the second valve body 212 is opened; in the first rapid heating mode, the first valve body 211 is opened and the second valve body 212 is closed; in the first rapid cooling mode, the first valve body 211 is opened and the second valve body 212 is closed.

[0086] In one embodiment, the heat exchange system 10 has:

[0087] In the first operating mode, the first valve body 211 is closed and the second valve body 212 is opened. After the first circulation loop runs in the first hot water making mode for a preset time, the first valve body 211 is opened and the second valve body 212 is closed, and the second circulation loop runs in the first rapid heating mode.

[0088] It is understandable that in winter, if hot water is needed, the first valve body 211 is closed first, the second valve body 212 is opened, and the heat exchange system 10 runs the first hot water mode for a preset time, so that the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow through the heat energy exchange device 500 to condense and release heat first, and to make hot water. When the temperature of the hot water reaches the standard and meets the preset temperature, the first valve body 211 is opened and the second valve body 212 is closed, so that the heat exchange medium does not pass through the heat energy exchange device 500. At this time, the heat exchange medium directly flows through the first heat exchange channel 310 to condense and release heat, and indoor heating is performed, that is, the first rapid heating mode is operated. It can be seen that the first operating mode of the heat exchange system 10 can quickly make hot water in winter, and when the temperature of the hot water obtained by the heat energy exchange device 500 reaches the standard, the heat exchange medium does not pass through the heat energy exchange device 500, and the heat exchange medium directly flows through the first heat exchange channel 310 to quickly heat the room, and the heat of the heat exchange medium can be fully utilized, thereby improving the energy efficiency of the heat exchange system 10.

[0089] See also Figure 2 , Figure 3 and Figure 5 In one embodiment, in the first circulation loop and / or the second circulation loop, the first end of the first heat exchange channel 310 is connected to the first end of the second heat exchange channel 410 through a third pipeline 204; the switching device 200 includes a first throttling device 219, and the first throttling device 219 is arranged on the third pipeline 204.

[0090] It can be understood that the first throttle 219 is provided on the third pipeline 204, and the first throttle 219 is used to throttle the heat exchange medium in the first hot water making mode, and / or the first throttle 219 is used to throttle the heat exchange medium in the second circulation loop, and the first throttle 219 can be an electronic expansion valve. That is, in the first hot water making mode and / or the second circulation loop, the first throttle 219 is provided on the third pipeline 204.

[0091] Furthermore, if Figure 2 As shown, in the first hot water making mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow through the heat energy exchange device 500 and the first heat exchange channel 310 in sequence to condense and release heat, then flow through the second heat exchange channel 410 to evaporate and absorb heat after being throttled by the first throttling member 219, and finally return to the compression device 100.

[0092] like Figure 3 As shown, in the first rapid heating mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow through the first connecting pipe 201 and the first heat exchange channel 310 in sequence to condense and release heat, then flow through the second heat exchange channel 410 to evaporate and absorb heat after being throttled by the first throttle member 219, and finally return to the compression device 100. Figure 5 As shown, in the first rapid cooling mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow through the second heat exchange channel 410 to condense and release heat, then flows through the first heat exchange channel 310 to evaporate and absorb heat after being throttled by the first throttling member 219, and then flows through the first connecting pipe 201 to return to the compression device 100.

[0093] It can be seen that the first throttling device 219 of the present scheme can perform throttling in multiple working modes, that is, the first throttling device 219 can control the flow velocity and flow rate of the heat exchange medium, adjust the evaporation temperature and pressure, and thus control the heat exchange effect of the heat exchange system 10.

[0094] See also Figure 4 In one embodiment, in the first circulation loop, the second end of the heat energy exchange device 500 is connected to the second end of the first heat exchange channel 310 through a second pipeline 203; the switching device 200 includes a second throttling device 220, and the second throttling device 220 is arranged on the second pipeline 203.

[0095] It can be understood that the second throttling member 220 is arranged on the second pipeline 203, and the second throttling member 220 is used to throttle the heat exchange medium in the first defrost mode, and the second throttling member 220 can be an electronic expansion valve. That is, in the first defrost mode, the second throttling member 220 is arranged on the second pipeline 203. In the first defrost mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow through the second heat exchange channel 410 and the first heat exchange channel 310 in sequence, both condensing and releasing heat, performing outdoor unit defrosting and indoor heating, and then flowing through the heat energy exchange device 500 to evaporate and absorb heat after throttling by the second throttling member 220, and finally returning to the compression device 100. It can be seen that the second throttling member 220 of this scheme can be throttled in the first defrost mode, that is, the second throttling member 220 can control the flow speed and flow rate of the heat exchange medium, adjust the evaporation temperature and pressure, thereby simultaneously controlling the defrosting and indoor heating effects of the heat exchange system 10.

[0096] See also Figure 6 In one embodiment, the heat exchange circulation loop includes a third circulation loop, in which the compression device 100 is connected to the heat energy exchange device 500, the second heat exchange channel 410 and the first heat exchange channel 310 in sequence via the switching device 200.

[0097] It can be understood that the switching device 200 is used to control the third circulation loop to operate in the first working mode, and the heat exchange medium flows through the heat energy exchange device 500 and the second heat exchange channel 410 in sequence, condenses and releases heat, and then flows into the first heat exchange channel 310 to evaporate and absorb heat, so as to form the second hot water making mode. The heat energy exchange device 500, the second heat exchange channel 410 and the first heat exchange channel 310 are connected in sequence. When the third circulation loop operates in the second hot water making mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow through the heat energy exchange device 500 to condense and release heat, and quickly make hot water, and then flows through the second heat exchange channel 410 to condense and release heat, and release heat outdoors, and then flows through the first heat exchange channel 310 to evaporate and absorb heat, and performs indoor cooling, and finally returns to the compression device 100.

[0098] It can be seen that the heat exchange system 10 can simultaneously realize the functions of rapid hot water production and indoor cooling in the second hot water production mode, and the structure of the heat exchange system 10 is simple; and the heat exchange medium evaporates and absorbs heat through the first heat exchange channel 310 after two full heat releases, which is conducive to reducing the pressure drop loss of the heat exchange medium, thereby improving the heat utilization rate of the heat exchange medium, that is, this solution is conducive to increasing the supercooling degree of the heat exchange medium discharged by the compression device 100, thereby improving the energy efficiency of the heat exchange system 10. In addition, the use scenario of the second hot water production mode is not limited. In this solution, the use scenario of the second hot water production mode is summer, that is, the heat exchange system 10 of this solution has the functions of rapid hot water production and indoor cooling in summer, thereby improving the applicability of the heat exchange system 10.

[0099] See also Figures 1 to 6 The switching device includes a third valve body 213 and a fourth valve body 214. The third valve body 213 is arranged in the third circulation loop and is located on the fourth pipeline 205 connecting the second end of the heat energy exchange device 500 and the second end of the second heat exchange channel 410; the fourth valve body 214 is arranged in the first circulation loop and is located on the second pipeline connecting the second end of the heat energy exchange device 500 and the second end of the first heat exchange channel 310.

[0100] It can be seen from the foregoing that the compression device 100 is connected with the heat energy exchange device 500, the first heat exchange channel 310, and the second heat exchange channel 410 in sequence through the switching device 200 to form a first circulation loop; the compression device 100 is connected with the first connecting pipe 201, the first heat exchange channel 310, and the second heat exchange channel 410 in sequence through the switching device 200 to form a second circulation loop.

[0101] Furthermore, the fourth valve body 214 is provided in the first circulation loop and is located on the second pipe 203 connecting the second end of the heat exchange device 500 and the second end of the first connecting pipe 201. In the second hot water making mode, the third valve body 213 is opened and the fourth valve body 214 is closed (e.g. Figure 6 When the first circulation loop is running, the third valve body 213 is closed and the fourth valve body 214 is opened (as shown); Figure 2 and Figure 4 When the second circulation loop is running, the third valve body 213 is closed and the fourth valve body 214 is closed (as shown); Figure 3 and Figure 5 shown).

[0102] It can be understood that the switching device 200 includes a controller, which is electrically connected to the third valve body 213 and the fourth valve body 214 , and the controller can control the opening and closing of the third valve body 213 , and the controller can control the opening and closing of the fourth valve body 214 .

[0103] Furthermore, the third valve body 213 is arranged on the fourth pipeline 205. When the third valve body 213 is closed, the third valve body 213 prevents the heat exchange medium from flowing along the fourth pipeline 205, which is equivalent to the disconnection of the third circulation loop; the fourth valve body 214 is arranged on the second pipeline 203. When the fourth valve body 214 is closed, the fourth valve body 214 prevents the heat exchange medium from flowing along the second pipeline 203, which is equivalent to the disconnection of the first circulation loop.

[0104] It can be seen that by setting the third valve body 213, the on-off of the fourth pipeline 205 can be controlled, thereby controlling the on-off of the third circulation loop; by setting the fourth valve body 214, the on-off of the second pipeline 203 can be controlled, thereby controlling the on-off of the first circulation loop, that is, by controlling the opening and closing of the third valve body 213 and the fourth valve body 214, the heat exchange system 10 can be switched among the second hot water making mode, the first hot water making mode and the first defrosting mode formed by the first circulation loop, and the first rapid heating mode and the first rapid cooling mode formed by the second circulation loop, thereby realizing multiple modes and corresponding functions.

[0105] See also Figures 1 to 6 In one embodiment, the switching device 200 includes a fifth valve body 215, which is disposed in the third circulation loop and located on the fifth pipeline 206 connecting the first end of the second heat exchange channel 410 and the second end of the first heat exchange channel 310. In the second hot water making mode, the fifth valve body 215 is opened (such as Figure 6 When the first circulation loop is running, the fifth valve body 215 is closed (as shown); Figure 2 and Figure 4When the second circulation loop is running, the fifth valve body 215 is closed (as shown); Figure 3 and Figure 5 shown).

[0106] It can be understood that the switching device 200 includes a controller, which is electrically connected to the fifth valve body 215, and the controller can control the opening and closing of the fifth valve body 215. The fifth valve body 215 is arranged on the fifth pipeline 206. When the fifth valve body 215 is closed, the fifth valve body 215 prevents the heat exchange medium from flowing along the fifth pipeline 206, which is equivalent to disconnecting the fifth circulation loop, that is, the fifth valve body 215 can control the on-off of the fifth pipeline 206, thereby controlling the on-off of the third circulation loop. It can be seen that by controlling the opening and closing of the fifth valve body 215, the heat exchange system 10 can be switched between the second hot water making mode, the first hot water making mode and the first defrosting mode formed by the first circulation loop, and the first rapid heating mode and the first rapid cooling mode formed by the second circulation loop, thereby realizing multiple modes and corresponding functions.

[0107] See also Figure 6 In one embodiment, the first end of the fifth pipeline 206 is connected to the second pipeline 203 between the fourth valve body 214 and the second end of the first heat exchange channel 310; the switching device 200 includes a second throttling member 220, which is arranged on the second pipeline 203 and located between the first end of the fifth pipeline 206 and the second end of the first heat exchange channel 310.

[0108] It can be understood that the second throttling member 220 is provided on the second pipeline 203 between the first end of the fifth pipeline 206 and the second end of the first heat exchange channel 310, and the second throttling member 220 can throttle the heat exchange medium in the second hot water making mode, and the second throttling member 220 can be an electronic expansion valve. That is, in the second hot water making mode, the second throttling member 220 is provided on the second pipeline 203 and is located between the first end of the fifth pipeline 206 and the second end of the first heat exchange channel 310.

[0109] Further, in the second hot water making mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow through the heat energy exchange device 500 to condense and release heat, to make hot water, then flow through the second heat exchange channel 410 to condense and release heat, to release heat outdoors, then flow through the first heat exchange channel 310 to evaporate and absorb heat after being throttled by the second throttling device 220, to cool the room indoors, and finally return to the compression device 100. It can be seen that the second throttling device 220 of this solution can be throttled in the second hot water making mode, that is, the second throttling device 220 can control the flow velocity and flow rate of the heat exchange medium, adjust the evaporation temperature and pressure, and thus simultaneously control the hot water making and indoor cooling effects of the heat exchange system 10.

[0110] Furthermore, it can be seen from the above content that the second throttling member 220 can also perform throttling in the first defrosting mode, that is, the second throttling member 220 can control the flow velocity and flow rate of the heat exchange medium, adjust the evaporation temperature and pressure, and thus simultaneously control the defrosting and indoor heating effects of the heat exchange system 10. In other words, the heat exchange system 10 of this solution uses the second throttling member 220 for throttling in both the second hot water making mode and the first defrosting mode, and the two modes use the same part for throttling, which optimizes the structural arrangement of the heat exchange system 10, helps to reduce the number of throttling members used, and thus can reduce manufacturing costs.

[0111] See also Figures 1 to 6 In one embodiment, the first end of the first heat exchange channel 310 is connected to the first end of the second heat exchange channel 410 through the third pipeline 204; the switching device 200 includes a sixth valve body 216, the sixth valve body 216 is arranged on the third pipeline 204, and the second end of the fifth pipeline 206 is connected to the third pipeline 204 between the sixth valve body 216 and the first end of the second heat exchange channel 410. In the second hot water making mode, the sixth valve body 216 is closed (such as Figure 6 When the first circulation loop is running, the sixth valve body 216 is opened (as shown in Figure 2 and Figure 4 When the second circulation loop is running, the sixth valve body 216 is opened (as shown); Figure 3 and Figure 5 shown).

[0112] It can be understood that the switching device 200 includes a controller, which is electrically connected to the sixth valve body 216, and the controller can control the opening and closing of the sixth valve body 216. The sixth valve body 216 is provided on the third pipeline 204. When the sixth valve body 216 is closed, the sixth valve body 216 prevents the heat exchange medium from flowing along the third pipeline 204, which is equivalent to disconnecting the first circulation loop and the second circulation loop, that is, the sixth valve body 216 can control the on-off of the third pipeline 204, thereby controlling the on-off of the first circulation loop and the second circulation loop, so that when the heat exchange medium flows along the third circulation loop and flows into the fifth pipeline 206, the heat exchange medium will not be diverted by the third pipeline 204, which is conducive to improving the stability of the second hot water making mode.

[0113] It can be seen that by controlling the opening and closing of the sixth valve body 216, the heat exchange system 10 can switch between the second hot water making mode, the first hot water making mode and the first defrosting mode formed by the first circulation loop, and the first rapid heating mode and the first rapid cooling mode formed by the second circulation loop, thereby realizing multiple modes and corresponding functions.

[0114] In one embodiment, the switching device 200 includes a seventh valve body 217, which is disposed in the third circulation loop and located on the sixth pipeline 207 connecting the first end of the first heat exchange channel 310 and the switching device 200. In the second hot water making mode, the seventh valve body 217 is opened (such as Figure 6 When the first circulation loop is running, the seventh valve body 217 is closed (as shown); Figure 2 and Figure 4 When the first circulation loop is running, the seventh valve body 217 is closed (as shown); Figure 3 and Figure 5 shown).

[0115] It can be understood that the controller of the switching device 200 is electrically connected to the seventh valve body 217, and the controller can control the opening and closing of the seventh valve body 217. The seventh valve body 217 is arranged on the sixth pipeline 207. When the seventh valve body 217 is closed, the seventh valve body 217 prevents the heat exchange medium from flowing along the sixth pipeline 207, which is equivalent to disconnecting the third circulation loop, that is, the seventh valve body 217 can control the on-off of the sixth pipeline 207, thereby controlling the on-off of the third circulation loop. It can be seen that by controlling the opening and closing of the seventh valve body 217, the heat exchange system 10 can be switched between the second hot water making mode, the first hot water making mode and the first defrosting mode formed by the first circulation loop, and the first rapid heating mode and the first rapid cooling mode formed by the second circulation loop, thereby realizing multiple modes and corresponding functions.

[0116] In one embodiment, the switching device 200 is connected to the second end of the second heat exchange channel 410 through the seventh pipeline 208, and the switching device 200 further includes an eighth valve body 218, and the eighth valve body 218 is disposed on the seventh pipeline 208. In the second hot water making mode, the eighth valve body 218 is closed (e.g. Figure 6 When the first circulation loop is running, the eighth valve body 218 is opened (as shown); Figure 2 and Figure 4 When the second circulation loop is running, the eighth valve body 218 is opened (as shown); Figure 3 and Figure 5 shown).

[0117] It can be understood that the controller of the switching device 200 is electrically connected to the eighth valve body 218, and the controller can control the opening and closing of the eighth valve body 218. The eighth valve body 218 is arranged on the seventh pipeline 208. When the eighth valve body 218 is closed, the eighth valve body 218 prevents the heat exchange medium from flowing along the seventh pipeline 208, which is equivalent to disconnecting the first circulation loop and the second circulation loop, that is, the eighth valve body 218 can control the opening and closing of the seventh pipeline 208, thereby controlling the opening and closing of the first circulation loop and the second circulation loop, so that when the heat exchange medium flows along the third circulation loop and flows into the second heat exchange channel 410, the heat exchange medium will not be diverted by the seventh pipeline 208, which is conducive to improving the stability of the second hot water making mode. It can be seen that by controlling the opening and closing of the eighth valve body 218, the heat exchange system 10 can be switched between the second hot water making mode, the first hot water making mode and the first defrosting mode formed by the first circulation loop, and the first rapid heating mode and the first rapid cooling mode formed by the second circulation loop, thereby realizing multiple modes and corresponding functions.

[0118] In one embodiment, the first working mode also includes a third hot water making mode. In the third hot water making mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow through the heat energy exchange device 500 to condense and release heat, and then flows through the first heat exchange channel 310 or the second heat exchange channel 410 to evaporate and absorb heat before returning to the compression device 100.

[0119] It is understandable that the use scenario of the third hot water making mode is not limited. For example, in summer, in the third hot water making mode, the heat exchange medium first flows through the heat energy exchange device 500 to condense and release heat to make hot water, and then flows through the first heat exchange channel 310 to evaporate and absorb heat to cool the room, and finally returns to the compression device 100, so that the functions of rapid hot water making and indoor cooling can be achieved at the same time. In winter, in order to avoid the indoor temperature from dropping, in the third hot water making mode, the heat exchange medium first flows through the heat energy exchange device 500 to condense and release heat to make hot water, and then flows through the second heat exchange channel 410 to evaporate and absorb heat to absorb heat outdoors, and finally returns to the compression device 100.

[0120] In one embodiment, the second working mode includes a second defrost mode. In the second defrost mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow through the second heat exchange channel 410 to condense and release heat, and then flows through the heat energy exchange device 500 or the first heat exchange channel 310 to evaporate and absorb heat before returning to the compression device 100.

[0121] It is understandable that the use scenario of the second defrost mode is not limited. For example, in winter, in order to defrost the outdoor unit, the second defrost mode is operated, the heat exchange medium first flows through the second heat exchange channel 410 to condense and release heat, and the outdoor unit is defrosted. The heat exchange medium then flows through the heat energy exchange device 500 to absorb heat, and finally returns to the compression device 100. For another example, in winter, in order to defrost the outdoor unit and cool the indoor room at the same time, the second defrost mode is operated, the heat exchange medium first flows through the second heat exchange channel 410 to condense and release heat, and the outdoor unit is defrosted. The heat exchange medium then flows through the first heat exchange channel 310 to absorb heat, and the indoor room is cooled, and finally returns to the compression device 100. It can be seen that the switching device 200 can be used to control the heat exchange medium discharged from the compression device 100 to flow through any two of the heat energy exchange device 500, the first heat exchange channel 310, and the second heat exchange channel 410.

[0122] See also Figure 1 In one embodiment, the first heat exchange device 300 further has a third heat exchange channel 320, and the second heat exchange device 400 further has a fourth heat exchange channel 420; the compression device 100 is connected with the third heat exchange channel 320 and the fourth heat exchange channel 420 through the switching device 200 to form a fourth circulation loop. The switching device 200 has a first heating mode that enables the fourth circulation loop to work in a heating cycle and a first cooling mode that enables the fourth circulation loop to work in a cooling cycle.

[0123] It is understandable that if Figure 2 , Figure 3 and Figure 4 As shown, in the first heating mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow along the fourth circulation loop, the heat exchange medium flows through the third heat exchange channel 320 to condense and release heat, and performs indoor heating, and then flows through the fourth heat exchange channel 420 to evaporate and absorb heat, and performs outdoor heat absorption, and finally returns to the compression device 100.

[0124] like Figure 5 and Figure 6 As shown, in the first cooling mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow along the fourth circulation loop, the heat exchange medium flows through the fourth heat exchange channel 420 to condense and release heat, and releases heat outdoors, then flows through the third heat exchange channel 320 to evaporate and absorb heat, and performs indoor cooling, and finally returns to the compression device 100.

[0125] It can be seen that the fourth heat exchange channel 420 of the heat exchange system 10 runs the first heating mode or the first cooling mode, which can achieve rapid indoor heating or rapid indoor cooling, and the heat exchange system 10 has a simple structure; and the first heating mode or the first cooling mode operated by the fourth circulation loop has no effect on the first working mode or the second working mode operated by the heat exchange system 10, and the heat exchange system 10 can run the first heating mode and the first working mode at the same time; or, the heat exchange system 10 can run the first heating mode and the second working mode at the same time; or, the heat exchange system 10 can run the first cooling mode and the first working mode at the same time; or, the heat exchange system 10 can run the first cooling mode and the second working mode at the same time, and the specific details are not limited here, so that the heat exchange system 10 in this scheme can have multiple modes, and the heat exchange system 10 has multiple functions and better heat exchange effect.

[0126] See also Figure 1 In one embodiment, the compression device 100 has a first exhaust port 110, a second exhaust port 120 and an air intake port 130, the first exhaust port 110 and the air intake port 130 are connected to the heat exchange circulation loop; the second exhaust port 120 and the air intake port 130 are connected to the fourth circulation loop.

[0127] It is understandable that the number of compression devices 100 is one, the first exhaust port 110 is independently connected to the heat exchange circulation loop, the second exhaust port 120 is independently connected to the fourth circulation loop, and the exhaust pressures of the first exhaust port 110 and the second exhaust port 120 of the compression device 100 can be the same or different, so that the pressures of the heat exchange medium flowing into the heat exchange circulation loop and the fourth circulation loop can be the same or different, thereby meeting the needs of different working modes. In this solution, a plurality of circulation loops are formed by a compression device 100, and the heat exchange system 10 can have a plurality of modes, for example: a first working mode, a second working mode, a first heating mode, and a first cooling mode, etc. The heat exchange system 10 of this solution has high energy efficiency.

[0128] See also Figure 1 In one embodiment, the compression device 100 is a double-cylinder double-suction double-row compressor, and the air intake port 130 includes a first sub-air intake port 131 and a second sub-air intake port 132, and the first sub-air intake port 131 is connected to the heat exchange circulation loop; the second sub-air intake port 132 is connected to the fourth circulation loop.

[0129] It is understandable that in a double-cylinder double-suction double-row compressor, the first sub-suction port 131 and the second sub-suction port 132 return air independently, and the suction pressures of the first sub-suction port 131 and the second sub-suction port 132 can be the same or different; the first exhaust port 110 and the second exhaust port 120 discharge air independently, and the exhaust pressures of the first exhaust port 110 and the second exhaust port 120 can be the same or different, so that the return air of the heat exchange circulation loop and the fourth circulation loop do not affect each other, and the exhaust air does not affect each other. This solution uses two compression cylinders to work simultaneously, which increases the suction and exhaust volumes of the compressor, thereby improving the compression capacity of the compression device 100, and further improving the energy efficiency of the heat exchange system 10.

[0130] See also Figures 1 to 6 In one embodiment, the switching device 200 includes a first reversing valve 209 and a second reversing valve 210, wherein the first reversing valve 209 is connected to the heat exchange circulation loop to change the flow direction of the heat exchange medium in the heat exchange circulation loop; the second reversing valve 210 is connected to the fourth circulation loop to change the flow direction of the heat exchange medium in the fourth circulation loop.

[0131] It is understandable that the first reversing valve 209 and the second reversing valve 210 can be composed of multiple valve bodies, or can be a four-way reversing valve, which is not specifically limited here. In this solution, the first reversing valve 209 includes a four-way reversing valve; and / or, the second reversing valve 210 includes a four-way reversing valve. The provision of a four-way reversing valve can simply and effectively switch the flow direction of the refrigerant, making the structure of the heat exchange system 10 simple and easy to assemble. In this solution, the refrigerant flow direction in the heat exchange circulation loop is changed by the first reversing valve 209, and the refrigerant flow direction in the fourth circulation loop is changed by the second reversing valve 210, so that the heat exchange system 10 can have multiple modes, thereby increasing the applicability of the heat exchange system 10.

[0132] In one embodiment, the switching device 200 includes a third throttling member 221 , and the third throttling member 221 is disposed in the fourth circulation loop and located between the third heat exchange channel 320 and the fourth heat exchange channel 420 .

[0133] It can be understood that the third throttle 221 is provided on the pipeline connecting the third heat exchange channel 320 and the fourth heat exchange channel 420, and the third throttle 221 is used to throttle the heat exchange medium in the fourth circulation loop, and the third throttle 221 can be an electronic expansion valve. In the first heating mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow along the fourth circulation loop, and the heat exchange medium flows through the third heat exchange channel 320 to condense and release heat, and performs indoor heating, and then flows through the fourth heat exchange channel 420 after throttling by the third throttle 221 to evaporate and absorb heat, and finally returns to the compression device 100. In the first cooling mode, the switching device 200 controls the heat exchange medium discharged from the compression device 100 to flow along the fourth circulation loop, and the heat exchange medium flows through the fourth heat exchange channel 420 to condense and release heat, and then flows through the third heat exchange channel 320 after throttling by the third throttle 221 to evaporate and absorb heat, and performs indoor cooling, and finally returns to the compression device 100.

[0134] It can be seen that the third throttling device 221 of the present solution can perform throttling in multiple working modes, that is, the third throttling device 221 can control the flow velocity and flow rate of the heat exchange medium, adjust the evaporation temperature and pressure, and thus control the heat exchange effect of the heat exchange system 10.

[0135] In one embodiment, when the heat exchange medium discharged from the compression device 100 flows through the heat energy exchange device 500 to condense and release heat and flows through the fourth heat exchange channel 420 to condense and release heat, the pressure of the heat exchange medium flowing into the heat energy exchange device 500 is greater than the pressure of the heat exchange medium flowing into the fourth heat exchange channel 420. In other words, when the heat exchange system 10 operates in the first working mode and the first cooling mode, the pressure of the heat exchange medium flowing into the heat energy exchange device 500 is greater than the pressure of the heat exchange medium flowing into the fourth heat exchange channel 420.

[0136] It can be understood that in the first working mode, the heat exchange medium flows through the heat exchange device 500 to condense and release heat to make hot water. The temperature required for the heat exchange device 500 for making hot water is relatively high, so the refrigerant flowing into the heat exchange device 500 is a high-pressure refrigerant; and the temperature required for the refrigerant to condense and release heat through the fourth heat exchange channel 420 does not need to be too high, so the refrigerant flowing into the fourth heat exchange channel 420 is a medium-pressure refrigerant, and the pressure of the high-pressure refrigerant is greater than the pressure of the medium-pressure refrigerant. There is a pressure difference between the refrigerant in the heat exchange circulation loop and the fourth circulation loop, that is, the pressure of the heat exchange medium flowing into the heat exchange device 500 is greater than the pressure of the heat exchange medium flowing into the fourth heat exchange channel 420. It can be seen that this solution provides a compression device 100, that is, a compressor, so that there is a pressure difference between the refrigerant in the heat exchange circulation loop and the fourth circulation loop of the heat exchange system 10. This high-low pressure design can reduce the pressure ratio of the compressor, the compressor has high energy efficiency, and can ensure that the heat exchange system 10 can simultaneously achieve stable hot water production and indoor refrigeration functions.

[0137] In one embodiment, the first heat exchange channel 310 and the third heat exchange channel 320 are arranged in the same shell and are heat exchanged with each other. It can be understood that the first heat exchange device 300 has a first shell, and the first heat exchange channel 310 and the third heat exchange channel 320 are both arranged in the first shell. When a part of the heat exchange medium flows through the first heat exchange channel 310 for heat exchange, and another part of the refrigerant flows through the third heat exchange channel 320 for heat exchange, if the temperatures of the first heat exchange channel 310 and the third heat exchange channel 320 after heat exchange are different and there is a temperature difference, the first heat exchange channel 310 and the third heat exchange channel 320 in the first shell can exchange heat, and the lower temperature of the two absorbs part of the heat with a higher temperature, which is conducive to improving the heat exchange energy efficiency, so that the energy efficiency of the heat exchange system 10 is improved.

[0138] In one embodiment, the second heat exchange channel 410 and the fourth heat exchange channel 420 are arranged in the same shell and are heat exchanged with each other. It can be understood that the second heat exchange device 400 has a second shell, and the second heat exchange channel 410 and the fourth heat exchange channel 420 are both arranged in the second shell. When a part of the heat exchange medium flows through the second heat exchange channel 410 for heat exchange, and another part of the refrigerant flows through the fourth heat exchange channel 420 for heat exchange, if the second heat exchange channel 410 and the fourth heat exchange channel 420 have different temperatures after heat exchange and there is a temperature difference, the second heat exchange channel 410 and the fourth heat exchange channel 420 in the second shell can exchange heat, and the lower temperature of the two absorbs part of the heat with a higher temperature, which is conducive to improving the heat exchange energy efficiency, so that the energy efficiency of the heat exchange system 10 is improved.

[0139] In one embodiment, the heat exchange device 500 includes a hot water heat exchanger, which is used to make hot water. It is understandable that the hot water heat exchanger includes a hot water heat exchange pipe, which can make hot water by using a refrigerant heat exchange method, or other methods, which are not specifically limited here.

[0140] In one embodiment, the first heat exchange device 300 includes a first heat exchange tube and a third heat exchange tube, the first heat exchange tube has the first heat exchange channel 310, and the third heat exchange tube has the third heat exchange channel 320; the first heat exchange tube and the third heat exchange tube are independent of each other and are arranged at intervals.

[0141] It is understandable that the first heat exchange device 300 further includes a first heat exchange fin. When the first heat exchange tube and the third heat exchange tube are independent of each other and are arranged at intervals, the first heat exchange tube and the third heat exchange tube are both provided with the first heat exchange fin to form the first heat exchanger and the third heat exchanger. The first heat exchanger and the third heat exchanger can be arranged in the same shell, or in different shells. In this embodiment, the first heat exchanger and the third heat exchanger are arranged in the same shell, and the two can exchange heat with each other, which is conducive to improving the heat exchange efficiency of the first heat exchange device 300.

[0142] In another embodiment, the first heat exchange device 300 includes a first heat exchange tube and a third heat exchange tube, the first heat exchange tube has the first heat exchange channel 310, and the third heat exchange tube has the third heat exchange channel 320; one of the first heat exchange tube and the third heat exchange tube is at least partially disposed in the other, and a first flow gap for refrigerant to pass through is provided between the first heat exchange tube and the third heat exchange tube. In such a configuration, taking the first heat exchange tube being at least partially disposed in the third heat exchange tube as an example, the refrigerant in the third heat exchange tube can better exchange heat with the refrigerant in the first heat exchange tube, so as to improve the heat exchange efficiency of the refrigerant flowing through the first heat exchange device 300.

[0143] In one embodiment, the first flow gap is an annular structure, which is conducive to increasing the heat exchange area of ​​the refrigerant flowing through the first heat exchange tube and the third heat exchange tube, and further improving the heat exchange efficiency of the refrigerant.

[0144] In one embodiment, the first heat exchange tube and the third heat exchange tube are both coil structures. Such a configuration is beneficial to increasing the heat exchange area of ​​the first heat exchange channel 310 and the third heat exchange channel 320, extending the heat exchange time of the refrigerant, and thus improving the heat exchange effect.

[0145] In one embodiment, the second heat exchange device 400 includes a second heat exchange tube and a fourth heat exchange tube, the second heat exchange tube has the second heat exchange channel 410, and the fourth heat exchange tube has the fourth heat exchange channel 420; the second heat exchange tube and the fourth heat exchange tube are independent of each other and are arranged at intervals.

[0146] It is understandable that the second heat exchange device 400 further includes a second heat exchange fin. When the second heat exchange tube and the fourth heat exchange tube are independent of each other and are arranged at intervals, the second heat exchange tube and the fourth heat exchange tube are both provided with a second heat exchange fin to form a second heat exchanger and a fourth heat exchanger. The second heat exchanger and the fourth heat exchanger can be arranged in the same housing, or in different housings. In this embodiment, the second heat exchanger and the fourth heat exchanger are arranged in the same housing, and the two can exchange heat with each other, which is conducive to improving the heat exchange energy efficiency of the second heat exchange device 400.

[0147] In another embodiment, the second heat exchange device 400 includes a second heat exchange tube and a fourth heat exchange tube, the second heat exchange tube has the second heat exchange channel 410, and the fourth heat exchange tube has the fourth heat exchange channel 420; one of the second heat exchange tube and the fourth heat exchange tube is at least partially disposed in the other, and a second flow gap for the refrigerant to pass through is provided between the second heat exchange tube and the fourth heat exchange tube. In such a configuration, taking the second heat exchange tube being at least partially disposed in the fourth heat exchange tube as an example, the refrigerant in the second heat exchange tube can better exchange heat with the refrigerant in the fourth heat exchange tube, so as to improve the heat exchange efficiency of the refrigerant flowing through the second heat exchange device 400.

[0148] In one embodiment, the second flow gap is an annular structure, which is conducive to increasing the heat exchange area of ​​the refrigerant flowing through the second heat exchange tube and the fourth heat exchange tube, and further improving the heat exchange efficiency of the refrigerant.

[0149] In one embodiment, the second heat exchange tube and the fourth heat exchange tube are both coil structures. Such a configuration is beneficial to increasing the heat exchange area of ​​the second heat exchange channel 410 and the fourth heat exchange channel 420, extending the heat exchange time of the refrigerant, and thus improving the heat exchange effect.

[0150] The utility model also proposes a heat exchange device, which includes the heat exchange system 10 as described above. The specific structure of the heat exchange system 10 refers to the above embodiment. Since the heat exchange device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the specific product type of the heat exchange device is not limited, and the heat exchange device only needs to be able to apply the heat exchange system 10.

[0151] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A heat exchange system, characterized in that: The heat exchange system comprises a compression device, a switching device, a first heat exchange device, a second heat exchange device and a heat energy exchange device; The first heat exchange device has a first heat exchange channel; The second heat exchange device has a second heat exchange channel; The compression device is connected to the heat energy exchange device, the first heat exchange channel and the second heat exchange channel via the switching device, and the switching device is at least used to control the compression device, the heat energy exchange device, the first heat exchange channel and the second heat exchange channel to form a heat exchange circulation loop.

2. The heat exchange system according to claim 1, characterized in that: The heat exchange circulation loop includes a first circulation loop, in which the compression device is sequentially connected to the heat energy exchange device, the first heat exchange channel, and the second heat exchange channel via the switching device.

3. The heat exchange system according to claim 2, characterized in that: The switching device includes a first connecting pipe, the first connecting pipe is connected to the first circulation loop, and the compression device is connected to the first connecting pipe, the first heat exchange channel and the second heat exchange channel in sequence through the switching device to form a second circulation loop.

4. The heat exchange system according to claim 3, characterized in that: In the first circulation loop, the switching device is connected to the first end of the heat exchange device through a first pipeline, and the second end of the heat exchange device is connected to the second end of the first heat exchange channel through a second pipeline; In the second circulation loop, the first end of the first connecting pipe is connected to the first pipeline, and the second end of the first connecting pipe is connected to the second pipeline.

5. The heat exchange system according to claim 4, characterized in that: The switching device further includes a first valve body and a second valve body, wherein the first valve body is disposed on the first connecting pipe, and the second valve body is disposed on the first pipeline connecting the first end of the first connecting pipe and the first end of the heat exchange device.

6. The heat exchange system according to claim 3, characterized in that: In the first circulation loop and / or the second circulation loop, the first end of the first heat exchange channel is connected to the first end of the second heat exchange channel through a third pipeline; The switching device includes a first throttling member, and the first throttling member is arranged on the third pipeline.

7. The heat exchange system according to claim 2, characterized in that: In the first circulation loop, the second end of the heat exchange device is connected to the second end of the first heat exchange channel through a second pipeline; The switching device includes a second throttling member, and the second throttling member is arranged on the second pipeline.

8. The heat exchange system according to claim 2, characterized in that: The heat exchange circulation loop includes a third circulation loop, in which the compression device is sequentially connected to the heat energy exchange device, the second heat exchange channel and the first heat exchange channel via the switching device.

9. The heat exchange system according to claim 8, characterized in that: The switching device includes a third valve body and a fourth valve body, the third valve body is arranged in the third circulation loop and is located on the fourth pipeline connecting the second end of the heat energy exchange device and the second end of the second heat exchange channel; the fourth valve body is arranged in the first circulation loop and is located on the second pipeline connecting the second end of the heat energy exchange device and the second end of the first heat exchange channel.

10. The heat exchange system according to claim 9, characterized in that: The switching device includes a fifth valve body, which is disposed in the third circulation loop and located on a fifth pipeline connecting the first end of the second heat exchange channel and the second end of the first heat exchange channel.

11. The heat exchange system according to claim 10, characterized in that: The first end of the fifth pipeline is connected to the second pipeline between the fourth valve body and the second end of the first heat exchange channel; the switching device includes a second throttling member, which is arranged on the second pipeline and located between the first end of the fifth pipeline and the second end of the first heat exchange channel.

12. The heat exchange system according to claim 10, characterized in that: In the first circulation loop, the first end of the first heat exchange channel is connected to the first end of the second heat exchange channel through a third pipeline; the switching device includes a sixth valve body, the sixth valve body is arranged on the third pipeline, and the second end of the fifth pipeline is connected to the third pipeline between the sixth valve body and the first end of the second heat exchange channel.

13. The heat exchange system according to claim 8, characterized in that: The switching device includes a seventh valve body, which is arranged in the third circulation loop and located on a sixth pipeline connecting the first end of the first heat exchange channel and the switching device.

14. The heat exchange system according to claim 8, characterized in that: The switching device is connected to the second end of the second heat exchange channel through a seventh pipeline. The switching device also includes an eighth valve body, and the eighth valve body is arranged on the seventh pipeline.

15. The heat exchange system according to any one of claims 1 to 14, characterized in that: The first heat exchange device further has a third heat exchange channel, and the second heat exchange device further has a fourth heat exchange channel; the compression device is connected with the third heat exchange channel and the fourth heat exchange channel in sequence through the switching device to form a fourth circulation loop.

16. The heat exchange system according to claim 15, characterized in that: The compression device has a first exhaust port, a second exhaust port and an air intake port, the first exhaust port and the air intake port are connected to the heat exchange circulation loop; the second exhaust port and the air intake port are connected to the fourth circulation loop.

17. The heat exchange system according to claim 16, characterized in that: The compression device is a double-cylinder double-suction double-row compressor, the air intake port includes a first sub-intake port and a second sub-intake port, the first sub-intake port is connected to the heat exchange circulation loop; the second sub-intake port is connected to the fourth circulation loop.

18. The heat exchange system according to claim 15, characterized in that: The switching device includes a first reversing valve and a second reversing valve, wherein the first reversing valve is connected to the heat exchange circulation loop to change the flow direction of the heat exchange medium in the heat exchange circulation loop; the second reversing valve is connected to the fourth circulation loop to change the flow direction of the heat exchange medium in the fourth circulation loop.

19. The heat exchange system according to claim 15, characterized in that: The switching device comprises a third throttling member, the third throttling member is arranged in the fourth circulation loop and is located between the third heat exchange channel and the fourth heat exchange channel; And / or, when the heat exchange medium discharged from the compression device flows through the heat energy exchange device to condense and release heat and flows through the fourth heat exchange channel to condense and release heat, the pressure of the heat exchange medium flowing into the heat energy exchange device is greater than the pressure of the heat exchange medium flowing into the fourth heat exchange channel.

20. The heat exchange system according to claim 15, characterized in that: The first heat exchange channel and the third heat exchange channel are arranged in the same shell and are arranged for heat exchange with each other; And / or, the second heat exchange channel and the fourth heat exchange channel are arranged in the same shell and are arranged for heat exchange with each other.

21. A heat exchange device, characterized in that: Comprising the heat exchange system according to any one of claims 1 to 20.

Images