Water-fluorine interconnected air conditioning system

Abstract

This invention relates to the field of air conditioning technology, and more particularly to a water-refrigerant interconnected air conditioning system. The water-refrigerant interconnected air conditioning system provided by this invention comprises several air conditioning units. Each air conditioning unit includes at least one outdoor heat exchanger, one indoor heat exchanger, a compressor, an expansion valve, and a four-way reversing valve. At least one indoor heat exchanger in each air conditioning unit is a three-medium heat exchanger. This system allows for the use of only one pumping device to provide directional power for the cooling circulating medium, reducing the need for pumping devices. Compared to existing technologies, this simplifies the piping structure and reduces the overall system cost. Furthermore, it solves the problem of mixing of supply and return water before entering the pump, which leads to energy quality loss in the water entering the terminal heat exchanger and reduces system energy efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioning technology, in particular to a water-fluorine interconnected air conditioning system. BACKGROUND

[0002] The existing mainstream air conditioning system is the chilled and hot water air conditioning system originated from the United States and the multi-connected system originated from Japan. The chilled and hot water air conditioning system can realize long-distance cold and heat supply; but due to the multiple heat exchanges of refrigerant-water and water-air, the energy grade loss is high; the energy consumption of transmission and distribution is high, the energy efficiency is low under partial load operation; the system occupies large area and the initial investment is high. The multi-connected system adopts direct expansion scheme, the heat exchange links are few, the energy consumption of transmission and distribution is low, the system energy efficiency is high; and the area occupied is small and the layout is flexible; but due to the limitation of refrigerant charge, it is not suitable for long-distance cold and heat supply; due to the time and space use restrictions in the actual application of the multi-connected system, the unit is operated under small load for a long time, the operation energy efficiency is low; and in winter heating, due to the reverse cycle and hot gas bypass defrosting mode, the winter heating effect is seriously affected.

[0003] In order to combine the advantages of the two types of mainstream air conditioning systems, the water-fluorine interconnected air conditioning system replaces the indoor unit and outdoor unit in the multi-connected air conditioning system with a three-medium heat exchanger, connects multiple three-medium heat exchangers through a water circuit, combines the advantages of water system and refrigerant system, and realizes cold and heat supply in multiple modes; but when the system realizes cold / heat scheduling of different air conditioning units, the water pump and the indoor unit and outdoor unit of each unit are in parallel relationship, multiple pumps may need to be set on the water circuit to complete the flow of medium in different directions, the pipeline structure arrangement is complex, difficult to implement, and the system cost is high; in addition, the water supply of the heat exchanger as the supply and the return water of the heat exchanger as the terminal will be mixed before entering the water pump, resulting in energy grade loss of water entering the terminal heat exchanger and reduced efficiency. Therefore, the structure of the existing water-fluorine interconnected air conditioning system needs to be improved to solve the above problems. SUMMARY

[0004] The present application provides a water-fluorine interconnected air conditioning system to solve the defects of the prior art, i.e. multiple water pumps need to be set on the water circuit, the pipeline structure arrangement is complex, the system cost is high, and energy grade loss is caused.

[0005] The present application provides a water-fluorine interconnected air conditioning system composed of several air conditioning units, each of which comprises at least one outdoor heat exchanger, one indoor heat exchanger, a compressor, an expansion valve and a four-way reversing valve.

[0006] The outdoor heat exchanger and the indoor heat exchanger each have a first medium channel and an air flow passage that are thermally coupled to each other, and each of the outdoor heat exchanger and the indoor heat exchanger has a corresponding fan in the air flow passage.

[0007] The compressor, the expansion valve, the four-way reversing valve and the first medium channel of the indoor heat exchanger and the outdoor heat exchanger in each air conditioning unit are connected through a refrigerant loop, and the refrigerant loops of the air conditioning units are independent of each other.

[0008] The indoor heat exchanger of each air conditioning unit has at least one three-medium heat exchanger, and further has a second medium channel which is thermally coupled with the first medium channel and the air flow channel, one end of the second medium channel of the indoor heat exchanger is connected to the first main load carrier pipe and the second main load carrier pipe through load carrier pipes, and a first valve and a second valve are arranged on the load carrier pipes connected to the first main load carrier pipe and the second main load carrier pipe, respectively; the other end of the second medium channel is connected to the third main load carrier pipe through a load carrier pipe.

[0009] One end of the first main load carrier pipe and one end of the second main load carrier pipe are connected, and a pumping device is arranged on the connecting pipe of the first main load carrier pipe and the second main load carrier pipe.

[0010] According to the water-fluorine interconnected air conditioning system provided by the application, the outdoor heat exchanger of each air conditioning unit has at least one three-medium heat exchanger, and further has a second medium channel which is thermally coupled with the first medium channel and the air flow channel, one end of the second medium channel of the outdoor heat exchanger is connected to the first main load carrier pipe and the second main load carrier pipe through load carrier pipes, and a third valve and a fourth valve are arranged on the load carrier pipes connected to the first main load carrier pipe and the second main load carrier pipe, respectively; the other end of the second medium channel is connected to the third main load carrier pipe through a load carrier pipe.

[0011] The water-fluorine interconnected air conditioning system further comprises at least one of a terminal device, a source-sink device and a production-use integrated device.

[0012] According to the water-fluorine interconnected air conditioning system provided by the application, one end of the terminal device is connected to the second main load carrier pipe, and a first flow regulating device is arranged on the connecting pipe of the terminal device and the second main load carrier pipe; the other end of the terminal device is connected to the third main load carrier pipe.

[0013] According to the water-fluorine interconnected air conditioning system provided by the application, the terminal device is one or a combination of multiple of a fan coil, a radiant floor, a radiant ceiling and a pipe-embedded wall; the first flow regulating device is one or a combination of both of a valve and a water pump.

[0014] According to the water-fluorine interconnected air conditioning system provided by the application, one end of the source-sink device is connected to the first main pipeline of the cold carrier, and a second flow regulating device is arranged on the connecting pipeline of the first main pipeline of the cold carrier; the other end of the source-sink device is connected to the third main pipeline of the cold carrier.

[0015] According to the water-fluorine interconnected air conditioning system provided by the application, the source-sink device is one or a combination of a cooling tower, a soil, river, lake, sea water heat exchanger, a solar heat collector, a municipal heat network and an industrial waste heat collection device; and the second flow regulating device is one or a combination of a valve and a water pump.

[0016] According to the water-fluorine interconnected air conditioning system provided by the application, one end of the source-sink device is connected to the first main pipeline of the cold carrier, and a second flow regulating device is arranged on the connecting pipeline of the first main pipeline of the cold carrier; the other end of the source-sink device is connected to the third main pipeline of the cold carrier.

[0017] According to the water-fluorine interconnected air conditioning system provided by the application, the source-sink device is one or a combination of a cooling tower, a soil, river, lake, sea water heat exchanger, a solar heat collector, a municipal heat network and an industrial waste heat collection device; and the second flow regulating device is one or a combination of a valve and a water pump.

[0018] The water-fluorine interconnected air conditioning system provided by the application is composed of a plurality of air conditioning units, each of which comprises at least one outdoor heat exchanger, one indoor heat exchanger, a compressor, an expansion valve and a four-way reversing valve; the outdoor heat exchanger and the indoor heat exchanger each have a first medium channel and an air flow channel which are thermally coupled to each other, and each of the air flow channels of the outdoor heat exchanger and the indoor heat exchanger has a corresponding fan; the compressor, the expansion valve, the four-way reversing valve, the first medium channel and the air flow channel of the indoor heat exchanger and the outdoor heat exchanger in each air conditioning unit are connected through a refrigerant loop, and the refrigerant loops of the air conditioning units are independent of each other; the indoor heat exchanger of each air conditioning unit has at least one three-medium heat exchanger, and further has a second medium channel which is thermally coupled to the first medium channel and the air flow channel; one end of the second medium channel is connected to a first main carrier fluid pipeline and a second main carrier fluid pipeline through a carrier fluid pipeline, and a first valve and a second valve are arranged on the carrier fluid pipeline connected to the first main carrier fluid pipeline and the second main carrier fluid pipeline, respectively; the other end of the second medium channel is connected to a third main carrier fluid pipeline through a carrier fluid pipeline; one end of the first main carrier fluid pipeline and one end of the second main carrier fluid pipeline are connected, and a pumping device is arranged on the connecting pipeline of the first main carrier fluid pipeline and the second main carrier fluid pipeline. The water-fluorine interconnected air conditioning system provided by the application arranges the first main carrier fluid pipeline, the second main carrier fluid pipeline and the third main carrier fluid pipeline which are independent of each other, and the first main carrier fluid pipeline and the second main carrier fluid pipeline are connected, so that only one pumping device is used to provide power for directional movement of the carrier fluid circulating medium, the use of the pumping device is reduced, the pipeline structure is simplified compared with the prior art, and the overall cost of the system is reduced; the phenomenon that the water supply and the return water are mixed before entering the water pump is solved, so that the energy grade loss of the water entering the heat exchanger at the end and the problem of reduction of the system energy efficiency are solved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0020] Figure 1 is a structural schematic diagram of the water-fluorine interconnected air conditioning system embodiment 1 provided by the application.

[0021] Figure 2 is a structural schematic diagram of the water-fluorine interconnected air conditioning system embodiment 2 provided by the application.

[0022] Figure 3 is a structural schematic diagram of the water-fluorine interconnected air conditioning system embodiment 3 provided by the application.

[0023] Figure 4 Fig. 3 is a schematic diagram of a low-load operation mode of the water-fluorine interconnected air conditioning system of the embodiment 3 of the present application.

[0024] Figure 5 Fig. 4 is a schematic diagram of a simultaneous cold and heat supply operation mode of the water-fluorine interconnected air conditioning system of the embodiment 3 of the present application.

[0025] Figure 6 Fig. 5 is a schematic diagram of a water-air simultaneous production operation mode of the water-fluorine interconnected air conditioning system of the embodiment 3 of the present application.

[0026] Figure 7 Fig. 6 is a schematic diagram of a direct cold and heat supply operation mode of the water-fluorine interconnected air conditioning system of the embodiment 3 of the present application.

[0027] Figure 8 Fig. 7 is a schematic diagram of a composite source operation mode of the water-fluorine interconnected air conditioning system of the embodiment 3 of the present application.

[0028] Figure 9 Fig. 8 is a schematic diagram of a high-efficiency defrosting operation mode of the water-fluorine interconnected air conditioning system of the embodiment 3 of the present application.

[0029] Figure 10 Fig. 9 is a schematic diagram of the water-fluorine interconnected air conditioning system of the embodiment 4 of the present application.

[0030] Figure 11 Fig. 10 is a schematic diagram of the water-fluorine interconnected air conditioning system of the embodiment 5 of the present application.

[0031] Reference signs:

[0032] 11: indoor heat exchanger; 12: compressor; 13: outdoor heat exchanger; 14: expansion valve; 15: four-way reversing valve; 100: first main pipe of refrigerant; 200: second main pipe of refrigerant; 300: third main pipe of refrigerant; 400: pumping device; 111: first valve; 112: second valve; 131: third valve; 132: fourth valve; 2: terminal device; 202: first flow control device; 3: source-sink device; 301: second flow control device; 4: production-use integrated device; 401: third flow control device; 402: fourth flow control device. DETAILED DESCRIPTION

[0033] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0034] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0035] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0036] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0038] The following will be described in conjunction with Figures 1 to 11A water-fluorine interconnected air conditioning system is described. The water-fluorine interconnected air conditioning system is composed of several air conditioning units, each of which includes at least one outdoor heat exchanger 13, one indoor heat exchanger 11, a compressor 12, an expansion valve 14, and a four-way reversing valve 15.

[0039] In Embodiment 1 of the present application, which is an indoor unit interconnected system, as shown in Figure 1 The outdoor heat exchanger 13 and the indoor heat exchanger 11 each have a first medium passage and an air flow passage that are thermally coupled to each other, and each of the outdoor heat exchanger 13 and the indoor heat exchanger 11 has a corresponding fan in the air flow passage; the compressor 12, the expansion valve 14, and the four-way reversing valve 15 in each air conditioning unit are connected to the first medium passage of the indoor heat exchanger 11 and the outdoor heat exchanger 13 through a refrigerant loop, and the refrigerant loops of the air conditioning units are independent of each other; the indoor heat exchanger 11 of each air conditioning unit has at least one three-medium heat exchanger and also has a second medium passage that is thermally coupled to the first medium passage and the air flow passage, one end of the second medium passage of the indoor heat exchanger 11 is connected to a primary carrier fluid pipe 100 and a secondary carrier fluid pipe 200 through carrier fluid pipes, and a first valve 111 and a second valve 112 are respectively arranged on the carrier fluid pipes connected to the primary carrier fluid pipe 100 and the secondary carrier fluid pipe 200; the other end of the second medium passage is connected to a tertiary carrier fluid pipe 300 through a carrier fluid pipe; one end of the primary carrier fluid pipe 100 and one end of the secondary carrier fluid pipe 200 are connected, and a pumping device 400 is arranged on the connecting pipe of the primary carrier fluid pipe 100 and the secondary carrier fluid pipe 200.

[0040] Specifically, the refrigerant loops in each air conditioning unit are independent of each other, that is, the third medium passage and the first medium passage in each air conditioning unit are connected through the refrigerant loop in the air conditioning unit, and the working states of the refrigerant loops in each air conditioning unit do not affect each other.

[0041] The second medium passage and the primary carrier fluid pipe 100 and the secondary carrier fluid pipe 200 have three arrangement and combination relationships: 1. The second medium passage is disconnected from the primary carrier fluid pipe 100 and the secondary carrier fluid pipe 200; 2. The second medium passage is connected only to the primary carrier fluid pipe 100; 3. The second medium passage is connected only to the secondary carrier fluid pipe 200. The above-mentioned connection and disconnection relationship is realized by the first valve 111 and the second valve 112 arranged on the corresponding pipes and switching the connection and disconnection states of the corresponding valves.

[0042] The first main pipe 100, the second main pipe 200 and the third main pipe 300 are filled with a cooling circulating medium, which can be water or antifreeze; the pumping device 400 can be a liquid pump. An air fan is arranged on the air flow channel, which can be an air inlet fan or an air outlet fan, and can regulate the air flow intensity, change the air inlet / outlet volume, and control the heat exchange effect of the air flow with the refrigerant and the cooling medium.

[0043] According to the water-fluorine interconnected air conditioning system of the above-mentioned embodiment structure, the first main pipe 100, the second main pipe 200 and the third main pipe 300 are arranged independently, and the first main pipe 100 and the second main pipe 200 are connected, so that only one pumping device 400 is used to provide power for the directional movement of the cooling circulating medium, reducing the use of the pumping device 400; in addition, compared with the prior art, the water-fluorine interconnected air conditioning system of the above-mentioned embodiment structure simplifies the pipe structure and reduces the overall cost of the system; and the phenomenon of mixing of the water supply and the return water before entering the water pump is solved, so that the water entering the end heat exchanger has energy grade loss, and the system energy efficiency is reduced.

[0044] The water-fluorine interconnected air conditioning system provided by the application is composed of a plurality of air conditioning units, each of which comprises at least one outdoor heat exchanger 13, one indoor heat exchanger 11, a compressor 12, an expansion valve 14 and a four-way reversing valve 15. The outdoor heat exchanger 13 and the indoor heat exchanger 11 each have a first medium channel and an air flow channel that are thermally coupled to each other, and each of the outdoor heat exchanger 13 and the indoor heat exchanger 11 has a corresponding fan in the air flow channel; the compressor 12, the expansion valve 14 and the four-way reversing valve 15 in each air conditioning unit are connected to the first medium channels of the indoor heat exchanger 11 and the outdoor heat exchanger 13 through a refrigerant loop, and the refrigerant loops of the air conditioning units are independent of each other; the indoor heat exchanger 11 of each air conditioning unit has at least one three-medium heat exchanger, and further has a second medium channel that is thermally coupled to the first medium channel and the air flow channel; one end of the second medium channel of the indoor heat exchanger 11 is connected to a first main cold carrier pipeline 100 and a second main cold carrier pipeline 200 through a cold carrier pipeline, and a first valve 111 and a second valve 112 are arranged on the cold carrier pipeline connected to the first main cold carrier pipeline 100 and the second main cold carrier pipeline 200, respectively; the other end of the second medium channel is connected to a third main cold carrier pipeline 300 through a cold carrier pipeline; one end of the first main cold carrier pipeline 100 and one end of the second main cold carrier pipeline 200 are connected, and a pumping device 400 is arranged on the connecting pipeline of the first main cold carrier pipeline 100 and the second main cold carrier pipeline 200. The water-fluorine interconnected air conditioning system provided by the application arranges the first main cold carrier pipeline 100, the second main cold carrier pipeline 200 and the third main cold carrier pipeline 300 that are independent of each other, and the first main cold carrier pipeline 100 and the second main cold carrier pipeline 200 are connected, so that only one pumping device 400 is used to provide power for directional movement of the cold carrier circulating medium, the use of the pumping device 400 is reduced, the pipeline structure is simplified compared with the prior art, and the overall cost of the system is reduced; the phenomenon that water supply and return water are mixed before entering the water pump is also solved, so that the water entering the end heat exchanger has energy grade loss, and the system energy efficiency is reduced.

[0045] In the embodiment 2 of the application, it is an indoor unit and outdoor unit interconnected system, as Figure 2As shown, each outdoor heat exchanger 13 of the air conditioning unit has at least one three-medium heat exchanger and a second medium channel that is thermally coupled to the first medium channel and the air flow channel. One end of the second medium channel of the outdoor heat exchanger 13 is connected to the first main refrigerant line 100 and the second main refrigerant line 200 through a refrigerant pipeline, and a third valve 131 and a fourth valve 132 are respectively installed on the refrigerant pipelines connected to the first main refrigerant line 100 and the second main refrigerant line 200. The other end of the second medium channel is connected to the third main refrigerant line 300 through a refrigerant pipeline. In this embodiment, the outdoor heat exchanger 13 has the same internal structure as the indoor heat exchanger 11, both having two thermally coupled medium channels (i.e., a first medium channel and a second medium channel) and an air flow channel. Similarly to the indoor heat exchanger 11, the second medium channel of the outdoor heat exchanger 13 can be connected or disconnected from the first main refrigerant line 100, the second main refrigerant line 200, and the third main refrigerant line 300 by switching the corresponding third valve 131 and fourth valve 132 on and off. In this embodiment, both the indoor heat exchanger 11 and the outdoor heat exchanger 13 adopt a dual-medium channel and air flow channel structure to meet the structural requirements of the first main refrigerant line 100, the second main refrigerant line 200, and the third main refrigerant line 300. Through the dual-medium and airflow thermal coupling, refrigerant-air heat exchange, refrigerant-air heat exchange, refrigerant-refrigerant heat exchange, and refrigerant-refrigerant-air heat exchange modes can be realized according to actual heat exchange requirements.

[0046] In embodiment 3 of the present invention, as Figure 3 As shown, it also includes at least one of a terminal device 2, a power source / sink device 3, and a production / consumption integrated device 4. In this embodiment, the terminal device 2 is an energy-consuming device, the power source / sink device 3 is an energy-harvesting device, and the production / consumption integrated device 4 is an integrated energy harvesting / consumption device.

[0047] Furthermore, one end of the terminal device 2 is connected to the second main refrigerant pipeline 200, and a first flow control device 202 is provided on the connection pipeline to the second main refrigerant pipeline 200; the other end of the terminal device 2 is connected to the third main refrigerant pipeline 300.

[0048] Furthermore, the terminal device 2 is one or more of a fan coil unit, radiant floor, radiant ceiling, and embedded wall; the first flow control device 202 is one or more of a valve and a water pump.

[0049] Furthermore, one end of the source-sinking device 3 is connected to the first main refrigerant pipeline 100, and a second flow control device 301 is installed on the connecting pipeline to the first main refrigerant pipeline 100; the other end of the source-sinking device 3 is connected to the third main refrigerant pipeline 300.

[0050] Further, the source-sink device 3 is one or more combinations of a cooling tower, a soil, river, lake, sea water heat exchanger, a solar collector, a municipal heat network, and an industrial waste heat collection device; and the second flow regulating device 301 is one or a combination of a valve and a water pump.

[0051] Further, one end of the production-use integrated device 4 is connected to the first and second main pipes 100 and 200, respectively, and the third flow regulating device 401 is arranged on the connecting pipe to the first main pipe 100, and the fourth flow regulating device 402 is arranged on the connecting pipe to the second main pipe 200; the other end of the production-use integrated device 4 is connected to the third main pipe 300.

[0052] Further, the production-use integrated device is a water tank; and the third and fourth flow regulating devices 401 and 402 are one or a combination of a valve and a water pump. The water tank can be an energy storage device or an energy use device, and can be a domestic water tank.

[0053] As shown in FIG. 6, a plurality of air conditioning units are used, one part of the units only opens the second valve 112 and the compressor and refrigerant loop do not work, and the other part of the units only opens the first valve 111 and the compressor and refrigerant loop work, at this time, the cold and heat required by the rooms corresponding to the part of the stopped units is provided by the other part of the units, and the part of the working units bears the load of the entire system, which can improve the energy efficiency in low load operation. This mode is a low load operation mode. Figure 4 As shown in FIG. 7, a plurality of air conditioning units are used, one part of the units only opens the second valve 112 and the compressor and refrigerant loop do not work, and the other part of the units only opens the third valve 131 and the compressor and refrigerant loop work, at this time, the indoor unit of the working unit supplies cold (heat) to the indoor, and the carrier fluid in the carrier fluid loop supplies heat (cold) to the rooms corresponding to the stopped units after recovering energy from the outdoor unit, thereby realizing the simultaneous supply of cold and heat when the cold and heat demands of different rooms are different. This mode is a simultaneous cold and heat supply operation mode.

[0054] Figure 5 As shown in FIG. 8, only the first valve 111 and the first flow regulating device 202 are opened and the compressor and refrigerant loop work, so that the second main pipe 200 of the carrier fluid leads to the terminal device 2, and this mode is a water and air simultaneous production operation mode in which cold (hot) air is produced by the indoor unit and cold (hot) water is produced by the terminal device 2.

[0054] As shown in FIG. 9, only the second valve 112 and the second flow regulating device 201 are opened and the compressor and refrigerant loop work, so that the first main pipe 100 of the carrier fluid leads to the terminal device 1, and this mode is a water and air simultaneous production operation mode in which cold (hot) air is produced by the indoor unit and cold (hot) water is produced by the terminal device 1. Figure 5 As shown in FIG. 10, only the third valve 131 and the third flow regulating device 301 are opened and the compressor and refrigerant loop work, so that the second main pipe 200 of the carrier fluid leads to the terminal device 2, and this mode is a water and air simultaneous production operation mode in which cold (hot) air is produced by the indoor unit and cold (hot) water is produced by the terminal device 2.

[0055] Figure 6 As shown in FIG. 11, only the first valve 111 and the first flow regulating device 202 are opened and the compressor and refrigerant loop work, so that the second main pipe 200 of the carrier fluid leads to the terminal device 2, and this mode is a water and air simultaneous production operation mode in which cold (hot) air is produced by the indoor unit and cold (hot) water is produced by the terminal device 2.

[0056] As shown in FIG. 12, only the second valve 112 and the second flow regulating device 201 are opened and the compressor and refrigerant loop work, so that the first main pipe 100 of the carrier fluid leads to the terminal device 1, and this mode is a water and air simultaneous production operation mode in which cold (hot) air is produced by the indoor unit and cold (hot) water is produced by the terminal device 1. Figure 7As shown, in this mode, only the second valve 112 and the second flow regulating device 301 are opened. This mode is a direct cooling / heating operation mode. When the temperature of the cold (hot) water collected by the source-sink device 3 can directly cool (heat) the room, the compressor of the unit does not need to be opened, and the collected cold (hot) water is directly used to cool (heat) the user, which can improve the energy efficiency of the system. If the source-sink device is a municipal heat network, the system can realize flexible switching between direct expansion heating and direct heating of municipal hot water, and can use one set of terminal to ensure the supply of cold and heat to the building throughout the year.

[0057] As shown in FIG. 1, Figure 8 As shown, in this mode, only the fourth valve 132 and the second flow regulating device 301 are opened. This mode is a composite source operation mode. The source-sink device can be a centrally arranged cooling tower or a buried pipe heat exchanger. The cold (hot) water collected by the source-sink device 3 is used as the cold (hot) source of the refrigeration / heat pump cycle, which can improve the energy efficiency of the refrigeration / heat pump cycle and thus improve the energy efficiency of the system.

[0058] As shown in FIG. 1, Figure 9 As shown, in this mode, only the fourth valve 132 and the third flow regulating device 401 are opened. This mode is a high-efficiency defrosting operation mode. When the outdoor unit needs to be defrosted, hot water generated by the water tank is used to enter the second medium passage of the outdoor unit to realize rapid defrosting. Compared with traditional reverse cycle defrosting and hot gas bypass defrosting, the defrosting time is shorter, and the compressor is not frequently switched, which ensures the indoor heating comfort.

[0059] As shown in FIG. 1, Figure 10 As shown, a single air conditioning unit is used. This form is a single set of multi-split form. The indoor unit and the outdoor unit of the single air conditioning unit are both three-medium heat exchangers. The system further includes at least one of the terminal device 2, the source-sink device 3, and the production-use integrated device 4. The system is commonly used in residential buildings and can realize simultaneous cold and heat supply operation, water and air production operation, direct cooling and heating operation, composite source operation, high-efficiency defrosting operation mode, and meet the cold and heat and comfort requirements of residential users and realize high efficiency and energy saving.

[0060] As shown in FIG. 1, Figure 11 As shown, multiple terminal devices 2 are used. This form is a water and air production dual-terminal form. When the dual-terminal is applied to the same room of the building, the water system is a radiation terminal such as a floor radiation heating and a radiant panel, which can realize rapid start and energy-saving operation during refrigeration and heating. When the dual-terminal is applied to different rooms of the building, one set of unit can meet the terminal requirements of different rooms. For example, in a household scenario, the living room uses a wind terminal, and the bedroom uses a radiation terminal with higher noise control requirements.

[0061] In the above Figures 4 to 9 In the above, the solid line part represents the connection of the pipeline, and the dashed line part represents the disconnection of the pipeline. The connection / disconnection of the pipeline is controlled by the corresponding valve on the pipeline.

[0062] The device embodiments described above are only illustrative, wherein the units described as separate components can or can not be physically separated, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed to multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiment scheme according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0063] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A water-fluorine interconnected air conditioning system, characterized by comprising: Each of the air conditioning units comprises at least one outdoor heat exchanger (13), one indoor heat exchanger (11), a compressor (12), an expansion valve (14) and a four-way reversing valve (15); The outdoor heat exchanger (13) and the indoor heat exchanger (11) each have a first medium channel and an air flow channel which are thermally coupled to each other, and each of the outdoor heat exchanger (13) and the indoor heat exchanger (11) has a corresponding fan in the air flow channel; The compressor (12), the expansion valve (14), the four-way reversing valve (15), the indoor heat exchanger (11) and the outdoor heat exchanger (13) in each of the air conditioning units are connected by a refrigerant loop, and the refrigerant loops of the air conditioning units are independent of each other; The indoor heat exchanger (11) of each of the air conditioning units has at least one three-medium heat exchanger, and further has a second medium channel which is thermally coupled to the first medium channel and the air flow channel, one end of the second medium channel of the indoor heat exchanger (11) is connected to a first main load carrier pipe (100) and a second main load carrier pipe (200) by load carrier pipes, and a first valve (111) and a second valve (112) are arranged on the load carrier pipes connected to the first main load carrier pipe (100) and the second main load carrier pipe (200), respectively; the other end of the second medium channel is connected to a third main load carrier pipe (300) by a load carrier pipe; One end of the first main load carrier pipe (100) and one end of the second main load carrier pipe (200) are connected, and a pumping device (400) is arranged on the connecting pipe of the first main load carrier pipe (100) and the second main load carrier pipe (200); The outdoor heat exchanger (13) of each of the air conditioning units has at least one three-medium heat exchanger, and further has a second medium channel which is thermally coupled to the first medium channel and the air flow channel, one end of the second medium channel of the outdoor heat exchanger (13) is connected to the first main load carrier pipe (100) and the second main load carrier pipe (200) by load carrier pipes, and a third valve (131) and a fourth valve (132) are arranged on the load carrier pipes connected to the first main load carrier pipe (100) and the second main load carrier pipe (200), respectively; the other end of the second medium channel is connected to the third main load carrier pipe (300) by a load carrier pipe; Further comprising at least one of a terminal device (2), a source-sink device (3) and a production-use integrated device (4).

2. The water-fluorin interaction air conditioning system according to claim 1, wherein One end of the terminal device (2) is connected to the second main load carrier pipe (200), and a first flow regulating device (202) is arranged on the connecting pipe of the terminal device (2) and the second main load carrier pipe (200); the other end of the terminal device (2) is connected to the third main load carrier pipe (300).

3. The water-fluorin interaction air conditioning system according to claim 2, wherein The terminal device (2) is one or a combination of a fan coil, a radiant floor, a radiant ceiling and a ducted wall. The first flow regulating device (202) is one or a combination of both of a valve and a water pump.

4. The water-fluorin interaction air conditioning system according to claim 1, wherein One end of the source-sink device (3) is connected to the primary coolant first main pipeline (100), and a second flow regulating device (301) is arranged on the connecting pipeline of the primary coolant first main pipeline (100); the other end of the source-sink device (3) is connected to the primary coolant third main pipeline (300).

5. The water-fluorin interaction air conditioning system according to claim 4, wherein The source-sink device (3) is one or a combination of a cooling tower, a soil, river, lake, sea water heat exchanger, a solar heat collector, a municipal heat network, and an industrial waste heat collection device. The second flow regulating device (301) is one or a combination of both of a valve and a water pump.

6. The water-fluorin interaction air conditioning system according to claim 1, wherein One end of the production-use integrated device (4) is respectively connected to the primary coolant first main pipeline (100) and the primary coolant second main pipeline (200), a third flow regulating device (401) is arranged on the connecting pipeline of the primary coolant first main pipeline (100), and a fourth flow regulating device (402) is arranged on the connecting pipeline of the primary coolant second main pipeline (200); the other end of the production-use integrated device (4) is connected to the primary coolant third main pipeline (300).

7. The water-fluorin interaction air conditioning system according to claim 6, wherein The production-use integrated device is a water tank. The third flow regulating device (401) and the fourth flow regulating device (402) are respectively one or a combination of both of a valve and a water pump.

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