Multifunctional water-fluoride interconnection machine

Abstract

This application relates to the field of air conditioning technology and discloses a multifunctional water-refrigerant interconnected air conditioner, comprising: one or more air conditioning units, a first circulation loop, a second circulation loop, a source detection device, a heat exchange device, a bypass branch, and a circulating water pump. The air conditioning unit includes an outdoor heat exchanger and at least one indoor heat exchanger. A first valve is provided on the output side of the source detection device, a second valve is provided on one side of the second medium channel of the outdoor heat exchanger, a third valve is provided on one side of the second medium channel of the indoor heat exchanger, a fourth valve is provided on the bypass branch, and a fifth valve is provided on one side of the heat exchange device. This allows for the control of the circulating water pump and the states of multiple valves to achieve various functional modes, thereby simultaneously meeting the needs for rapid heating, heating comfort, and uninterrupted heating during defrosting by selecting and switching appropriate operating modes.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, for example to a multifunctional water-fluoride interconnected unit. Background Technology

[0002] Building energy consumption is one of the three major energy consumers in society. Energy expenditures and greenhouse gas emissions related to building operations account for about one-third of the total, with heating and air conditioning energy consumption, which directly affects people's well-being, being the most important component. As building functions improve and people's demands for comfort increase, the proportion of energy consumption is rising year by year. Therefore, improving the energy efficiency of air conditioning systems is an important way to reduce total social energy consumption and achieve energy conservation and emission reduction.

[0003] The air conditioning systems disclosed in the relevant technologies generally use either supply air terminals or radiant terminals to heat the room. For example, supply air terminals are more commonly used in southern regions to meet users' needs for rapid heating, while radiant terminals are more commonly used in northern regions to meet users' needs for heating comfort. Furthermore, to address the issue of frost buildup in air conditioning systems during heating, methods such as hot air bypass defrosting or reverse circulation defrosting are generally employed.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] A single multi-functional water-refrigerant interconnected heating system cannot simultaneously meet users' needs for rapid heating and heating comfort. Furthermore, both hot gas bypass defrosting and reverse circulation defrosting require the indoor heat exchanger to be shut down, causing indoor temperature fluctuations and reducing comfort. Summary of the Invention

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This disclosure provides a multifunctional water-fluorine interconnected heater that solves the problem of simultaneously meeting the needs for rapid heating and heating comfort, as well as uninterrupted heating during defrosting, using a single system.

[0008] In some embodiments, the multifunctional water-fluoride interconnection machine includes:

[0009] One or more air conditioning units, the air conditioning unit including an outdoor heat exchanger and at least one indoor heat exchanger, wherein both the indoor heat exchanger and the outdoor heat exchanger are three-medium heat exchangers;

[0010] The first circulation loop is provided in each of the air conditioning units, and the multiple first circulation loops are independent of each other; and the first medium channel of the indoor heat exchanger and the first medium channel of the outdoor heat exchanger are connected in series and communicate with the first circulation loop.

[0011] The second circulation loop is provided in each of the air conditioning units, and the multiple second circulation loops are connected to each other; and the second medium channel of the indoor heat exchanger and the second medium channel of the outdoor heat exchanger are connected in parallel and connected to the second circulation loop.

[0012] The source measurement device is connected to the second circulation loop and is in series with the second medium channel of the outdoor heat exchanger, and is used to input cold / heat into the second circulation loop;

[0013] A heat exchange device is connected to the second circulation loop and is in parallel with the second medium channel of the indoor heat exchanger, for supplying heating to the room; and, the two ends of the heat exchange device are connected to bypass branches.

[0014] A circulating water pump is installed on the second circulation loop between the second medium channel of the indoor heat exchanger and the bypass branch, and is located downstream of the first valve to the fifth valve;

[0015] The source measurement device has a first valve on its output side, a second valve on one side of the second medium channel of the outdoor heat exchanger, a third valve on one side of the second medium channel of the indoor heat exchanger, a fourth valve on the bypass branch, and a fifth valve on one side of the heat exchange device. This allows for the control of the circulating water pump and the status of multiple valves to achieve various functional modes.

[0016] Optionally, the multifunctional water-fluoride interconnected machine has a water source working mode, which corresponds to the first circulation loop running a cooling cycle or a heating cycle. In this mode, the circulating water pump is turned on, the first valve, the second valve, and the fourth valve are opened, and the third valve and the fifth valve are closed.

[0017] Optionally, the multifunctional water-fluoride interconnected unit has a direct external energy supply cooling / heating mode, which corresponds to the first circulation loop being blocked. In this mode, the source measurement device outputs cooling or heating, the circulating water pump is turned on, and the first, third, and fourth valves are opened, while the second and fifth valves are closed; or...

[0018] The external energy direct cooling / heating mode corresponds to the first circulation loop being blocked, the source measurement device outputting cooling or heating, the circulating water pump being turned on, the first valve and the fifth valve being opened, and the second valve, the third valve and the fourth valve being closed.

[0019] Optionally, the multifunctional water-fluorine interconnected machine has a first heating and defrosting mode, which corresponds to the first circulation loop being blocked, the circulating water pump being turned on, the second valve and the fourth valve being turned on, and the first valve, the third valve and the fifth valve being turned off.

[0020] Optionally, the multifunctional water-fluorine interconnected machine has a second heating and defrosting mode, which corresponds to the heating cycle of the first circulation loop. In this mode, the circulating water pump is turned on, the second valve and the fourth valve are opened, and the first valve, the third valve and the fifth valve are closed.

[0021] Optionally, the multifunctional water-fluorine interconnected machine has a dehumidification and reheat mode, which corresponds to the first circulation loop running a refrigeration cycle, in which the circulating water pump is turned on, the second valve and the fifth valve are turned on, and the first valve, the third valve and the fourth valve are turned off.

[0022] Optionally, the multi-functional water-fluoride interconnection machine is applied to multiple rooms, each room is provided with an indoor heat exchanger and a heat exchange device, each indoor heat exchanger is provided with a third valve on one side of the second medium channel, and each heat exchange device is provided with a fifth valve on one side.

[0023] For rooms requiring rapid heating, open the fifth valve of the heat exchange device corresponding to that room, and turn on the indoor fan corresponding to the indoor heat exchanger in that room.

[0024] For rooms requiring on-duty heating, open the fifth valve of the heat exchange device corresponding to that room and close the indoor fan corresponding to the indoor heat exchanger in that room.

[0025] For rooms without heating requirements, close the fifth valve of the heat exchange device corresponding to that room, and turn off the corresponding indoor fan of the indoor heat exchanger in that room.

[0026] Optionally, the multi-functional water-fluorine interconnected unit has an air source working mode, which corresponds to the first circulation loop running a cooling cycle or a heating cycle. In this mode, the circulating water pump is turned off, the first valve to the fifth valve are closed, the outdoor fan corresponding to the outdoor heat exchanger is turned on, and the indoor fan corresponding to the indoor heat exchanger is turned on.

[0027] Optionally, the multifunctional water-fluorine interconnected machine has an intermittent heating start-up mode, which corresponds to the heating cycle of the first circulation loop. In this mode, the circulating water pump is turned on, the third valve and the fifth valve are opened, the first valve, the second valve and the fourth valve are closed, and the indoor fan corresponding to the indoor heat exchanger is turned on. The heat supply ratio of the indoor heat exchanger and the heat exchange device can be adjusted according to user needs.

[0028] Optionally, the multifunctional water-fluorine interconnected machine has an intermittent heating stable mode, which corresponds to the heating cycle of the first circulation loop. In this mode, the circulating water pump is turned on, the third valve and the fifth valve are turned on, the first valve, the second valve and the fourth valve are turned off, and the indoor fan corresponding to the indoor heat exchanger is turned off.

[0029] The multifunctional water-fluoride interconnection machine provided in this embodiment can achieve the following technical effects:

[0030] A single system controls the status of circulating water pumps and multiple valves to achieve multiple functional modes. By selecting and switching appropriate operating modes, it can simultaneously meet the needs for rapid heating, heating comfort, and uninterrupted heating during defrosting.

[0031] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0032] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0033] Figure 1 This is a schematic diagram of the multifunctional water-fluoride interconnection machine provided in an embodiment of this disclosure;

[0034] Figure 2 This is a schematic diagram of the first to fifth valves provided in an embodiment of this disclosure;

[0035] Figure 3 This is a schematic diagram of the water source working mode provided in the embodiments of this disclosure;

[0036] Figure 4 This is a schematic diagram of the direct external energy supply cooling / heating mode 1 provided in the embodiments of this disclosure;

[0037] Figure 5 This is a schematic diagram of the external energy direct cooling / heating mode 2 provided in the embodiments of this disclosure;

[0038] Figure 6This is a schematic diagram of the first heating defrosting mode provided in the embodiments of this disclosure;

[0039] Figure 7 This is a schematic diagram of the second heating defrosting mode provided in the embodiments of this disclosure;

[0040] Figure 8 This is a schematic diagram of the dehumidification and reheating mode provided in the embodiments of this disclosure;

[0041] Figure 9 This is a schematic diagram of low-load heating provided in an embodiment of this disclosure;

[0042] Figure 10 This is a schematic diagram of the air source operating mode provided in the embodiments of this disclosure;

[0043] Figure 11 This is a schematic diagram of the intermittent heating start-up mode provided in the embodiments of this disclosure.

[0044] Figure label:

[0045] 1: Compressor; 2: Four-way reversing valve; 3: Outdoor heat exchanger; 3.1: Second valve; 3.2: Outdoor fan; 4: Indoor heat exchanger; 4.1: Third valve; 4.2: Indoor fan; 4.3: Expansion valve; 5: Circulating water pump; 5.1: Fourth valve; 6: Source measurement device; 6.1: First valve; 7: Heat exchange device; 7.1: Fifth valve; 100: Air conditioning unit; 200: First circulation loop; 300: Second circulation loop; 101: First medium passage; 102: Second medium passage; 103: First air passage; 104: Second air passage. Detailed Implementation

[0046] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0047] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0048] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0049] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0050] Unless otherwise stated, the term "multiple" means two or more.

[0051] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0052] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0053] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0054] Combination Figure 1-11As shown, this disclosure provides a multi-functional water-refrigerant interconnected air conditioner, including one or more air conditioning units 100, a first circulation loop 200, a second circulation loop 300, a source detection device 6, a heat exchange device 7, a bypass branch, and a circulating water pump 5. Each air conditioning unit 100 includes an outdoor heat exchanger 3 and at least one indoor heat exchanger 4, both of which are three-medium heat exchangers. Each air conditioning unit 100 has one first circulation loop 200, and the multiple first circulation loops 200 are independent of each other. The first medium channel 101 of the indoor heat exchanger 4 and the first medium channel 101 of the outdoor heat exchanger 3 are connected in series and communicate with the first circulation loop 200. Each air conditioning unit 100 has one second circulation loop 300, and the multiple second circulation loops 300 are interconnected. The second medium channel 102 of the indoor heat exchanger 4 and the second medium channel 102 of the outdoor heat exchanger 3 are connected in parallel and communicate with the second circulation loop 300. The source detection device 6 is connected to the second circulation loop 300 and is connected to the outdoor heat exchanger 3. The second medium channel 102 is connected in series and is used to input cold / heat into the second circulation loop 300; the heat exchange device 7 is connected to the second circulation loop 300 and is connected in parallel with the second medium channel 102 of the indoor heat exchanger 4, and is used to provide indoor heating; and the two ends of the heat exchange device 7 are connected to bypass branches; the circulating water pump 5 is installed in the second circulation loop 300; wherein, the output side of the source measuring device 6 is provided with a first valve 6.1, one side of the second medium channel 102 of the outdoor heat exchanger 3 is provided with a second valve 3.1, one side of the second medium channel 102 of the indoor heat exchanger 4 is provided with a third valve 4.1, a fourth valve 5.1 is provided on the bypass branch, and a fifth valve 7.1 is provided on one side of the heat exchange device 7, so as to realize multiple functional modes by controlling the state of the circulating water pump 5 and multiple valves.

[0055] The multifunctional water-fluoride interconnected machine provided in this embodiment uses a single system to control the status of the circulating water pump 5 and multiple valves to achieve multiple functional modes. By selecting and switching appropriate operating modes, it can simultaneously meet the needs of rapid heating, heating comfort, and uninterrupted heating during defrosting.

[0056] Optionally, such as Figure 1 As shown, the circulating water pump 5 is installed on the second circulation loop 300 between the second medium channel 102 of the indoor heat exchanger 4 and the bypass branch. The second valve 3.1 is located on the inflow side of the second medium channel 102 of the outdoor heat exchanger 3, the third valve 4.1 is located on the inflow side of the second medium channel 102 of the indoor heat exchanger 4, and the fifth valve 7.1 is located on the outflow side of the heat exchange device 7. The circulating water pump 5 is located downstream of the first valve 6.1 to the fifth valve 7.1, and the bypass branch is located between the second medium channel 102 of the indoor heat exchanger 4 and the heat exchange device 7.

[0057] Optionally, the circulating medium in the first circulation loop 200 includes refrigerant. In the multifunctional water-refrigerant interconnected air conditioner provided in the embodiments of this disclosure, the first circulation loop 200 is further provided with a compressor 1, a four-way reversing valve 2, and an expansion valve 4.3. The compressor 1 is used to drive the flow of refrigerant in the first circulation loop 200, the four-way reversing valve 2 is used to switch the flow direction of refrigerant in the first circulation loop 200 to realize the first circulation loop 200 to operate a heating cycle or a cooling cycle, and the expansion valve 4.3 is used to throttle and reduce the pressure of the flowing refrigerant. Wherein, when the first circulation loop 200 operates in a heating cycle, the flow direction of its refrigerant is compressor 1, four-way reversing valve 2, indoor heat exchanger 4, outdoor heat exchanger 3, and compressor 1. When the first circulation loop 200 operates in a cooling cycle, the flow direction of its refrigerant is compressor 1, four-way reversing valve 2, outdoor heat exchanger 3, indoor heat exchanger 4, and compressor 1.

[0058] Optionally, the circulating medium in the second circulation loop 300 includes water or antifreeze. Water and antifreeze have excellent cooling capacity, and the source / measuring device 6 inputs cooling / heating energy into the second circulation loop 300 through the circulating water or antifreeze.

[0059] Optionally, the source measurement device 6 includes a heat storage device and / or a cold storage device. The heat storage device stores heat and inputs heat into the second circulation loop 300; the cold storage device stores cold energy and inputs cold energy into the second circulation loop 300.

[0060] For example, the heat storage device includes a city heating network heat energy collection device, a geothermal energy collection device, a groundwater heat energy collection device, a solar thermal collector, a building waste heat collection device, or an industrial waste heat collection device. The cold storage device includes an indirect evaporative cooling device or a cooling tower. Here, the types of heat storage devices and cold storage devices can be one or more. For example, the source measurement device 6 includes a heat storage device and a cold storage device; the heat storage device includes a city heating network heat energy collection device and a geothermal energy collection device, and the cold storage device includes a cooling tower. Heat or cold energy is input into the second circulation loop 300 according to the operating mode requirements of the multi-functional water-fluorine interconnected machine.

[0061] Optionally, the heat exchange device 7 includes a ceiling-mounted radiant heat exchanger, a wall-mounted radiant heat exchanger, a floor-mounted radiant heat exchanger, or a liquid heat storage tank. These heat exchange devices 7 provide high comfort as radiant heating terminals.

[0062] For example, the multi-functional water-fluorine interconnected air conditioner is applied to multiple rooms, with each room corresponding to an indoor heat exchanger 4 and a heat exchange device 7. The heat exchange devices 7 in each room can be the same or different. For example, room one uses a ceiling-mounted radiant heat exchanger, room two uses a wall-mounted radiant heat exchanger, and room three uses a wall-mounted radiant heat exchanger.

[0063] Optionally, such as Figure 2As shown, the third medium channel of the outdoor heat exchanger 3 is the first air channel 103. Air flows through the first air channel 103 through the outdoor fan 3.2 to exchange heat with the first medium channel 101 and / or the second medium channel 102 of the outdoor heat exchanger 3. The third medium channel of the indoor heat exchanger 4 is the second air channel 104. Air flows through the second air channel 104 through the indoor fan 4.2 to exchange heat with the first medium channel 101 and / or the second medium channel 102 of the indoor heat exchanger 4.

[0064] In this embodiment, when the outdoor fan 3.2 is started, outdoor air flows through the first air channel 103, thereby exchanging heat with the first medium channel 101 and / or the second medium channel 102 of the outdoor heat exchanger 3. When the indoor fan 4.2 is started, indoor air flows through the second air channel 104, thereby exchanging heat with the first medium channel 101 and / or the second medium channel 102 of the indoor heat exchanger 4.

[0065] Optionally, such as Figure 3 As shown, the multi-functional water-fluoride interconnected unit has a water source operating mode. The water source operating mode corresponds to the first circulation loop 200 running either a cooling cycle or a heating cycle, with the circulating water pump 5 turned on, the first valve 6.1, the second valve 3.1, and the fourth valve 5.1 turned on, and the third valve 4.1 and the fifth valve 7.1 turned off.

[0066] In this embodiment, the outdoor fan 3.2 is off, and the indoor fan 4.2 is on. The circulation direction of the second circulation loop 300 is: source measurement device 6, the second medium channel 102 and bypass branch of the outdoor heat exchanger 3, circulating water pump 5, and source measurement device 6. Furthermore, the cold / heat of the source measurement device 6 exchanges heat with the first medium channel 101 of the outdoor heat exchanger 3 through the second medium channel 102, ensuring the operation of the outdoor heat exchanger 3, thereby realizing the water source working mode.

[0067] For example, the first circulation loop 200 operates a refrigeration cycle, and the first valve 6.1 corresponding to the cold storage device is opened, allowing the cold storage device to input cooling capacity into the second circulation loop 300 through water or antifreeze. When the water or antifreeze flows through the second medium channel 102 of the outdoor heat exchanger 3, it exchanges heat with the high-temperature refrigerant in the first medium channel 101 of the outdoor heat exchanger 3, maintaining the operation of the outdoor heat exchanger 3.

[0068] In another example, the first circulation loop 200 operates a heating cycle, and the first valve 6.1 corresponding to the heat storage device is opened, allowing the heat storage device to input heat into the second circulation loop 300 through water or antifreeze. When the water or antifreeze flows through the second medium channel 102 of the outdoor heat exchanger 3, it exchanges heat with the low-temperature refrigerant in the first medium channel 101 of the outdoor heat exchanger 3, maintaining the operation of the outdoor heat exchanger 3.

[0069] Optionally, such as Figure 4 As shown, the multi-functional water-fluorine interconnection machine has an external energy direct cooling / heating mode 1. The external energy direct cooling / heating mode 1 corresponds to the first circulation loop 200 being blocked, the source measuring device 6 outputting cooling or heating, the circulating water pump 5 being turned on, the first valve 6.1, the third valve 4.1 and the fourth valve 5.1 being turned on, and the second valve 3.1 and the fifth valve 7.1 being turned off.

[0070] In this embodiment, the first circulation loop 200 is blocked, and cooling or heating is supplied to the room only through the second circulation loop 300. The outdoor fan 3.2 is turned off, and the indoor fan 4.2 is turned on. The circulation direction of the second circulation loop 300 is: source measurement device 6, the second medium channel 102 of the indoor heat exchanger 4 and the bypass branch, the circulating water pump 5, and the source measurement device 6. Furthermore, the cooling / heating capacity of the source measurement device 6 is supplied to the room for cooling or heating when it passes through the second medium channel 102 of the indoor heat exchanger 4.

[0071] For example, the first valve 6.1 corresponding to the cold storage device is opened, and the cold storage device inputs cooling capacity into the second circulation loop 300 through water or antifreeze. When the water or antifreeze flows through the second medium channel 102 of the indoor heat exchanger 4, under the action of the indoor fan 4.2, the indoor air flows through the second air channel 104 and exchanges heat with the second medium channel 102 of the indoor heat exchanger 4 to form cold air for cooling the room.

[0072] In another example, the first valve 6.1 corresponding to the heat storage device is opened, and the heat storage device inputs heat into the second circulation loop 300 through water or antifreeze. When the water or antifreeze flows through the second medium channel 102 of the indoor heat exchanger 4, under the action of the indoor fan 4.2, the indoor air flows through the second air channel 104 and exchanges heat with the second medium channel 102 of the indoor heat exchanger 4 to form hot air for heating the room.

[0073] Optionally, such as Figure 5 As shown, the multi-functional water-fluorine interconnection machine has an external energy direct cooling / heating mode 2. The external energy direct cooling / heating mode 2 corresponds to the first circulation loop 200 being blocked, the source measuring device 6 outputting heat, the circulating water pump 5 being turned on, the first valve 6.1 and the fifth valve 7.1 being turned on, and the second valve 3.1, the third valve 4.1 and the fourth valve 5.1 being turned off.

[0074] In this embodiment, the first circulation loop 200 is blocked, and heating is supplied to the room only through the second circulation loop 300. The outdoor fan 3.2 and the indoor fan 4.2 are both turned off. The circulation flow of the second circulation loop 300 is: source-measuring device 6, heat exchange device 7, circulating water pump 5, and back to source-measuring device 6. The first valve 6.1 corresponding to the heat storage device is opened, and the heat storage device inputs heat into the second circulation loop 300 through water or antifreeze. The heat from the source-measuring device 6 is supplied to the room through the heat exchange device 7. The heat exchange device 7 provides a high level of heating comfort.

[0075] Optionally, such as Figure 6 As shown, the multi-functional water-fluorine interconnected machine has a first heating and defrosting mode. The first heating and defrosting mode corresponds to the first circulation loop 200 being blocked, the circulating water pump 5 being turned on, the second valve 3.1 and the fourth valve 5.1 being turned on, and the first valve 6.1, the third valve 4.1 and the fifth valve 7.1 being turned off.

[0076] In this embodiment, the first circulation loop 200 is blocked, and defrosting is performed through the second circulation loop 300. The outdoor fan 3.2 is turned off, and the indoor fan 4.2 is turned off. After the circulating water pump 5 is turned on, the water or antifreeze in the second circulation loop 300 begins to circulate. When it flows through the second medium channel 102 of the outdoor heat exchanger 3, it exchanges heat with the first medium channel 101 of the outdoor heat exchanger 3, thereby performing defrosting.

[0077] For example, the multi-functional water-refrigerant interconnected unit operates in air source mode to supply heat to the room. In this mode, although the second circulation loop 300 is not circulating, some heat is transferred to the circulating medium of the second circulation loop 300 for storage through the second medium channel 102 of the indoor heat exchanger 4. When the first medium channel 101 of the outdoor heat exchanger 3 is frosted and there is a need for defrosting and maintaining the supply of heat to the room, the multi-functional water-refrigerant interconnected unit shuts off the air source mode and operates in the first heating and defrosting mode. The outdoor fan 3.2 is shut off to effectively reduce the heat exchange between the outdoor air and the second medium channel 102 of the outdoor heat exchanger 3, ensuring defrosting efficiency. The indoor fan 4.2 is shut off to reduce the energy consumption of the multi-functional water-refrigerant interconnected unit. Although the fifth valve 7.1 corresponding to the heat exchange device 7 is not open, it supplies heat to the room through the heat stored in the air source mode. In this way, part of the heat of the circulating medium in the second circulation loop 300 is defrosted at the second medium channel 102 of the outdoor heat exchanger 3, and the other part of the heat is supplied to the room through the heat exchange device 7.

[0078] Optionally, such as Figure 7 As shown, the multi-functional water-fluorine interconnected machine has a second heating and defrosting mode. The second heating and defrosting mode corresponds to the heating cycle of the first circulation loop 200. The circulating water pump 5 is turned on, the second valve 3.1 and the fourth valve 5.1 are turned on, and the first valve 6.1, the third valve 4.1 and the fifth valve 7.1 are turned off.

[0079] In this embodiment, the first circulation loop 200 operates in heating mode and defrosts through the second circulation loop 300. The outdoor fan 3.2 is turned off, and the indoor fan 4.2 is turned on to supply heated air into the room. After the circulating water pump 5 is turned on, the water or antifreeze in the second circulation loop 300 begins to circulate. When it flows through the second medium channel 102 of the outdoor heat exchanger 3, it exchanges heat with the first medium channel 101 of the outdoor heat exchanger 3 for defrosting, thus supplying heated air into the room while defrosting. Compared to common shutdown defrosting methods, the defrosting method used in this multi-functional water-refrigerant interconnected air conditioner maintains heating capacity while defrosting, significantly improving energy efficiency and ensuring room comfort.

[0080] For example, the multi-functional water-refrigerant interconnected air conditioner operates in air source mode to supply heat to the room. In this mode, although the second circulation loop 300 does not circulate, some heat is transferred through the second medium channel 102 of the indoor heat exchanger 4 to the circulating medium in the second circulation loop 300 for storage. When the first medium channel 101 of the outdoor heat exchanger 3 is frosted and there is a need for defrosting and maintaining the supply of heat to the room, the multi-functional water-refrigerant interconnected air conditioner shuts off the air source mode and operates in the second heating and defrosting mode. The indoor fan 4.2 is turned on to generate hot air to supply heat to the room. In this way, a portion of the heat in the circulating medium in the second circulation loop 300 is exchanged at the second medium channel 102 of the outdoor heat exchanger 3 for defrosting, and another portion of the heat is exchanged at the second medium channel 102 of the outdoor heat exchanger 3 to maintain the operation of the outdoor heat exchanger 3.

[0081] Optionally, such as Figure 8 As shown, the multi-functional water-refrigerant interconnected unit has a dehumidification and reheat mode. The dehumidification and reheat mode corresponds to the first circulation loop 200 running the refrigeration cycle, with the circulating water pump 5 turned on, the second valve 3.1 and the fifth valve 7.1 turned on, and the first valve 6.1, the third valve 4.1 and the fourth valve 5.1 turned off.

[0082] In this embodiment, the first circulation loop 200 operates a refrigeration cycle for dehumidification and supplies heat to the room through the second circulation loop 300. The circulation direction of the second circulation loop 300 is the second medium channel 102 of the outdoor heat exchanger 3, the heat exchange device 7, the circulating water pump 5, and the second medium channel 102 of the outdoor heat exchanger 3. Furthermore, when water or refrigerant flows through the second medium channel 102 of the outdoor heat exchanger 3, it exchanges heat with the first medium channel 101 of the outdoor heat exchanger 3 and absorbs heat. This heat is supplied to the room through the heat exchange device 7, thereby increasing the indoor temperature and meeting the requirement of maintaining the indoor temperature while dehumidifying.

[0083] Optionally, such as Figure 9As shown, the multi-functional water-fluorine interconnected air conditioner is applied to multiple rooms. Each room is equipped with an indoor heat exchanger 4 and a heat exchange device 7. Each indoor heat exchanger 4 has a third valve 4.1 on one side of the second medium channel 102, and each heat exchange device 7 has a fifth valve 7.1 on one side. The multi-functional water-fluorine interconnected air conditioner has a low-load heating mode. In the low-load heating mode, the first circulation loop 200 operates in heating cycle, the circulating water pump 5 is turned on, the first valve 6.1, the second valve 3.1 and the fourth valve 5.1 are closed, the third valve 4.1 is turned on, and the state of the fifth valve 7.1 of the corresponding heat exchange device 7 in each room is controlled according to the heating demand of each room.

[0084] In this embodiment, the first circulation loop 200 operates in a heating cycle, during which the first medium channel 101 of the indoor heat exchanger 4 contains high-temperature refrigerant. When water or refrigerant in the second circulation loop 300 flows through the second medium channel 102 of the indoor heat exchanger 4, it exchanges heat with the high-temperature refrigerant. The circulation direction of the second circulation loop 300 is: second medium channel 102 of the indoor heat exchanger 4, heat exchange device 7, circulating water pump 5, and second medium channel 102 of the indoor heat exchanger 4. In this way, the heat from the high-temperature refrigerant is transferred to the heat exchange device 7 through the second circulation loop 300.

[0085] In this embodiment, for a room with a rapid heating requirement, the fifth valve 7.1 of the heat exchange device 7 corresponding to that room is opened, and the indoor fan 4.2 of the indoor heat exchanger 4 corresponding to that room is turned on. Thus, under the action of the indoor fan 4.2, indoor air exchanges heat through the second air channel 104 and the first medium channel 101 and the second medium channel 102 of the indoor heat exchanger 4 to form hot air, rapidly responding to the heating demand, and simultaneously supplying heat to the room through the heat exchange device 7.

[0086] In this embodiment, for rooms requiring on-call heating, the fifth valve 7.1 of the heat exchange device 7 corresponding to that room is opened, and the indoor fan 4.2 of the indoor heat exchanger 4 corresponding to that room is closed. In this way, heat is supplied to the room through the heat exchange device 7 on the second circulation loop 300, ensuring user comfort while meeting the on-call heating needs.

[0087] In this embodiment, for rooms without heating needs, the fifth valve 7.1 of the heat exchange device 7 corresponding to that room is closed, and the indoor fan 4.2 of the indoor heat exchanger 4 corresponding to that room is also turned off. In this way, the indoor heat exchanger 4 corresponding to the room without heating needs continues to operate. Compared to directly closing the expansion valve 4.3 of the indoor heat exchanger 4 corresponding to that room, this increases the overall heat exchange area of ​​the multi-functional water-refrigerant interconnected unit, reduces the condensing temperature, and thus improves the operating efficiency of the multi-functional water-refrigerant interconnected unit.

[0088] Optionally, such as Figure 10As shown, the multi-functional water-fluorine interconnected air source working mode corresponds to the first circulation loop 200 running a cooling cycle or a heating cycle. In this mode, the circulating water pump 5 is closed, the first valve 6.1 to the fifth valve 7.1 are closed, the outdoor fan 3.2 corresponding to the outdoor heat exchanger 3 is turned on, and the indoor fan 4.2 corresponding to the indoor heat exchanger 4 is turned on.

[0089] In this embodiment, the circulating water pump 5 is closed, and the first valve 6.1 to the fifth valve 7.1 are closed, meaning the second circulation loop 300 is in a blocked state. The first circulation loop 200 operates a cooling cycle or a heating cycle. At this time, the outdoor fan 3.2 drives outdoor air to exchange heat with the first medium channel 101 of the outdoor heat exchanger 3 through the first air channel 103, and the indoor fan 4.2 drives indoor air to exchange heat with the first medium channel 101 of the indoor heat exchanger 4 through the second air channel 104 to form cold air or hot air, thereby supplying cooling or heating to the room.

[0090] Optionally, such as Figure 11 As shown, the multi-functional water-fluorine interconnected unit has an intermittent heating start-up mode. The intermittent heating start-up mode corresponds to the first circulation loop 200 running the heating cycle, the circulating water pump 5 is turned on, the third valve 4.1 and the fifth valve 7.1 are turned on, the first valve 6.1, the second valve 3.1 and the fourth valve 5.1 are turned off, and the indoor fan 4.2 corresponding to the indoor heat exchanger 4 is turned on.

[0091] In this embodiment, the first circulation loop 200 operates in a heating cycle, during which the first medium channel 101 of the indoor heat exchanger 4 contains high-temperature refrigerant. The indoor fan 4.2 is turned on, and indoor air exchanges heat with the first medium channel 101 of the indoor heat exchanger 4 to form hot air that supplies heat to the room. Furthermore, the second medium channel 102 of the indoor heat exchanger 4 exchanges heat with the first medium channel 101, and the heat is conducted to the second circulation loop 300 and supplied to the room through the heat exchange device 7. Thus, heat is supplied to the room simultaneously through hot air and the heat exchange device 7.

[0092] Optionally, the heat supply ratio of indoor heat exchanger 4 and heat exchange device 7 can be adjusted according to user needs. In intermittent heating start-up mode, the multi-functional water-refrigerant interconnected unit can adjust the heat supply ratio of indoor heat exchanger 4 and heat exchange device 7 by adjusting the power of indoor fan 4.2 and heat exchange device 7.

[0093] For example, in intermittent heating start-up mode, if a user wants faster heating, they can adjust the power of the indoor fan 4.2 and the heat exchange device 7 to make the heat supply ratio of the indoor heat exchanger 4 and the heat exchange device 7 2:1. In this way, heat is mainly supplied to the room through hot air, thereby quickly responding to the user's temperature needs.

[0094] Another example is that, in the intermittent heating start-up mode, if a user wants more comfortable heating, they can adjust the power of the indoor fan 4.2 and the heat exchange device 7 to make the heat supply ratio of the indoor heat exchanger 4 and the heat exchange device 7 1:2. In this way, heat is mainly supplied to the room through the heat exchange device 7, thereby meeting the user's comfort needs.

[0095] Optionally, the multi-functional water-fluorine interconnected unit has an intermittent heating stable mode, which corresponds to the first circulation loop 200 running a heating cycle, with the circulating water pump 5 turned on, the third valve 4.1 and the fifth valve 7.1 turned on, the first valve 6.1, the second valve 3.1 and the fourth valve 5.1 turned off, and the indoor fan 4.2 corresponding to the indoor heat exchanger 4 turned off.

[0096] In this embodiment, the first circulation loop 200 operates in a heating cycle, during which the first medium channel 101 of the indoor heat exchanger 4 contains high-temperature refrigerant. The second medium channel 102 of the indoor heat exchanger 4 exchanges heat with the first medium channel 101, and the heat is conducted to the second circulation loop 300 and supplied to the room through the heat exchange device 7. The heat exchange device 7 includes radiant heating terminals such as ceiling-mounted radiant heaters, providing high comfort. Furthermore, the indoor fan 4.2 is turned off, resulting in low noise.

[0097] Combining the above embodiments, users can select and switch the appropriate operating mode of the multi-functional water-fluorine interconnected machine according to their actual heating / heating / defrosting / dehumidification needs.

[0098] For example, the multi-functional water-refrigerant interconnected air conditioner is applied in a conference room setting. When the meeting is short, the air conditioner operates in air source mode before the meeting, using hot air to preheat the conference room for rapid heating. When the meeting is long, the air conditioner switches to intermittent heating mode, providing heating through both hot air and heat radiation from the heat exchanger 7. Furthermore, the ratio of heat supplied by hot air and heat radiation can be flexibly adjusted according to user needs. Once the conference room temperature reaches the target temperature, the air conditioner switches to intermittent heating stable mode, in which case the indoor fan 4.2 stops, and heating is provided solely through heat radiation, resulting in low noise and high comfort. This satisfies user needs while significantly improving the system's energy efficiency.

[0099] In another example, the multi-functional water-refrigerant interconnected air conditioner is applied in a home setting with an indoor temperature of 10°C and a target temperature of 25°C. To meet the need for reduced heating costs, the multi-functional water-refrigerant interconnected air conditioner operates in external energy direct cooling / heating mode 1 between 10°C and 15°C, using the source detection device 6 to input heat into the second circulation loop 300 and generate hot air at the indoor heat exchanger 4 to heat the room. To meet the needs of both heating costs and comfort, the multi-functional water-refrigerant interconnected air conditioner operates in external energy direct cooling / heating mode 2 between 16°C and 25°C, using the source detection device 6 to input heat into the second circulation loop 300 and heat the room through thermal radiation.

[0100] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A multifunctional water-fluoride interconnection machine, characterized in that, include: One or more air conditioning units (100), the air conditioning unit (100) including an outdoor heat exchanger (3) and at least one indoor heat exchanger (4), and both the indoor heat exchanger (4) and the outdoor heat exchanger (3) are three-medium heat exchangers; The first circulation loop (200) is provided in each of the air conditioning units (100), and the multiple first circulation loops (200) are independent of each other; and the first medium channel (101) of the indoor heat exchanger (4) and the first medium channel (101) of the outdoor heat exchanger (3) are connected in series and communicated in the first circulation loop (200). The second circulation loop (300) is provided in each of the air conditioning units (100), and the multiple second circulation loops (300) are connected to each other; and the second medium channel (102) of the indoor heat exchanger (4) and the second medium channel (102) of the outdoor heat exchanger (3) are connected in parallel and connected to the second circulation loop (300); The source measurement device (6) is connected to the second circulation loop (300) and is in series with the second medium channel (102) of the outdoor heat exchanger (3), and is used to input cold / heat into the second circulation loop (300); The heat exchange device (7) is connected to the second circulation loop (300) and is connected in parallel with the second medium channel (102) of the indoor heat exchanger (4) for supplying heating to the room; and the two ends of the heat exchange device (7) are connected to bypass branches. A circulating water pump (5) is installed on the second circulation loop (300) between the second medium channel (102) of the indoor heat exchanger (4) and the bypass branch, and is located downstream of the first valve (6.1) to the fifth valve (7.1); Among them, the output side of the source measurement device (6) is provided with a first valve (6.1), the second medium channel (102) of the outdoor heat exchanger (3) is provided with a second valve (3.1) on one side, the second medium channel (102) of the indoor heat exchanger (4) is provided with a third valve (4.1) on one side, the bypass branch is provided with a fourth valve (5.1), and the heat exchange device (7) is provided with a fifth valve (7.1) on one side, thereby realizing multiple functional modes by controlling the state of the circulating water pump (5) and multiple valves; The multifunctional water-fluorine interconnected machine has a dehumidification and reheat mode, which corresponds to the first circulation loop (200) running a refrigeration cycle. The circulating water pump (5) is turned on, the second valve (3.1) and the fifth valve (7.1) are turned on, and the first valve (6.1), the third valve (4.1) and the fourth valve (5.1) are turned off.

2. The multifunctional water-fluoride interconnection machine according to claim 1, characterized in that, The multifunctional water-fluoride interconnection machine has a water source working mode, which corresponds to the first circulation loop (200) running a cooling cycle or a heating cycle. The circulating water pump (5) is turned on, the first valve (6.1), the second valve (3.1) and the fourth valve (5.1) are turned on, and the third valve (4.1) and the fifth valve (7.1) are turned off.

3. The multifunctional water-fluoride interconnection machine according to claim 1, characterized in that, The multifunctional water-fluoride interconnected machine has a direct external energy supply cooling / heating mode. This mode corresponds to the blocking of the first circulation loop (200), where the source measurement device (6) outputs cooling or heating, the circulating water pump (5) is turned on, and the first valve (6.1), the third valve (4.1), and the fourth valve (5.1) are opened, while the second valve (3.1) and the fifth valve (7.1) are closed; or... The external energy direct cooling / heating mode corresponds to the blocking of the first circulation loop (200), the source measurement device (6) outputs cold or heat, the circulating water pump (5) is turned on, the first valve (6.1) and the fifth valve (7.1) are turned on, and the second valve (3.1), the third valve (4.1) and the fourth valve (5.1) are turned off.

4. The multifunctional water-fluoride interconnection machine according to claim 1, characterized in that, The multi-functional water-fluorine interconnected machine has a first heating and defrosting mode, which corresponds to the blocking of the first circulation loop (200), the opening of the circulating water pump (5), the opening of the second valve (3.1) and the fourth valve (5.1), and the closing of the first valve (6.1), the third valve (4.1) and the fifth valve (7.1).

5. The multifunctional water-fluoride interconnection machine according to claim 1, characterized in that, The multi-functional water-fluorine interconnected machine has a second heating and defrosting mode, which corresponds to the heating cycle of the first circulation loop (200). The circulating water pump (5) is turned on, the second valve (3.1) and the fourth valve (5.1) are turned on, and the first valve (6.1), the third valve (4.1) and the fifth valve (7.1) are turned off.

6. The multifunctional water-fluoride interconnection machine according to claim 1, characterized in that, The multi-functional water-fluorine interconnection machine is applied to multiple rooms. Each room is equipped with an indoor heat exchanger (4) and a heat exchange device (7). A third valve (4.1) is provided on one side of the second medium channel (102) of each indoor heat exchanger (4), and a fifth valve (7.1) is provided on one side of each heat exchange device (7). For rooms requiring rapid heating, open the fifth valve (7.1) of the heat exchange device (7) corresponding to the room, and turn on the indoor fan (4.2) corresponding to the indoor heat exchanger (4) in the room. For rooms with heating needs during shifts, open the fifth valve (7.1) of the heat exchange device (7) corresponding to the room, and close the indoor fan (4.2) corresponding to the indoor heat exchanger (4) in the room; For rooms without heating requirements, close the fifth valve (7.1) of the heat exchange device (7) corresponding to the room, and close the corresponding indoor fan (4.2) of the indoor heat exchanger (4) in the room.

7. The multifunctional water-fluoride interconnection machine according to claim 1, characterized in that, The multi-functional water-fluorine interconnected machine has an air source working mode, which corresponds to the first circulation loop (200) running a cooling cycle or a heating cycle. The circulating water pump (5) is closed, the first valve (6.1) to the fifth valve (7.1) are closed, the outdoor fan (3.2) corresponding to the outdoor heat exchanger (3) is turned on, and the indoor fan (4.2) corresponding to the indoor heat exchanger (4) is turned on.

8. The multifunctional water-fluoride interconnection machine according to claim 1, characterized in that, The multi-functional water-fluorine interconnected machine has an intermittent heating start-up mode, which corresponds to the heating cycle of the first circulation loop (200). The circulating water pump (5) is turned on, the third valve (4.1) and the fifth valve (7.1) are turned on, the first valve (6.1), the second valve (3.1) and the fourth valve (5.1) are turned off, and the indoor fan (4.2) corresponding to the indoor heat exchanger (4) is turned on. The heat supply ratio of the indoor heat exchanger (4) and the heat exchange device (7) can be adjusted according to the user's needs.

9. The multifunctional water-fluoride interconnection machine according to claim 1, characterized in that, The multi-functional water-fluorine interconnected machine has an intermittent heating stable mode. The intermittent heating stable mode corresponds to the heating cycle of the first circulation loop (200). The circulating water pump (5) is turned on, the third valve (4.1) and the fifth valve (7.1) are turned on, the first valve (6.1), the second valve (3.1) and the fourth valve (5.1) are turned off, and the indoor fan (4.2) corresponding to the indoor heat exchanger (4) is turned off.

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