Heat pump cold and hot water air conditioning system

Abstract

The utility model relates to the technical field of air conditioners, and discloses a heat pump cold and hot water air conditioning system which comprises a heat pump cold and hot water host, a heat pump cold and hot water heat exchanger and a heat pump cold and hot water heat exchanger, the fresh air module is connected with a cold and heat source of the heat pump cold and hot water host through a water supply pipeline and a water return pipeline, so that hot water or cold water of the heat pump cold and hot water host is supplied to the fresh air module through the water supply pipeline and flows back to the heat pump cold and hot water host through the water return pipeline; the indoor unit is connected with a cold and heat source of the heat pump cold and hot water main machine through a water supply pipeline and a water return pipeline. According to the air conditioner system, a refrigerating and heating system does not need to be independently arranged in the fresh air module, so that the number of refrigerating and heating devices in the air conditioner system is reduced, the manufacturing cost of the devices is reduced, the overall size and weight of the devices are reduced due to the fact that the independent refrigerating and heating system does not need to be arranged for each fresh air module, and the water supply efficiency is improved by arranging a water supply pipeline and a water return pipeline. The air outlet temperature of the fresh air module can be accurately controlled, and therefore indoor constant temperature is achieved.

Description

Technical Field

[0001] The present application relates to the field of air conditioning technology, for example, to a heat pump hot and cold water air conditioning system. Background Art

[0002] At present, with the improvement of per capita living standards in recent years, every household has installed air conditioners. There are many kinds of air conditioning systems on the market, and the newly launched "Five Constant System" is unique in the field of innovation. It integrates indoor environment detection, APP control, and remote background monitoring. The "Five Constant System" includes constant temperature, constant humidity, constant oxygen, constant quietness, and constant cleanliness.

[0003] The five-constant air-conditioning system in the related technology includes an outdoor unit, a fresh air device and an indoor unit. The cold and heat sources of the fresh air device mostly adopt a built-in complete refrigeration system. The complete refrigeration system includes a compressor, an evaporator and a condenser, etc. When the dehumidification mode is running, the fresh air and the indoor return air are cooled and dehumidified through the evaporator after heat and moisture exchange. After dehumidification, the temperature and humidity are reduced, and then they are reheated through the condenser.

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

[0005] The cold and heat sources of the fresh air modules of the existing Wuheng air-conditioning system are provided by the cooling and heating system of the fresh air fan. Increasing the number of cooling and heating systems of the Wuheng air-conditioning system will, on the one hand, increase the size and weight of the equipment, and on the other hand, increase the overall cost of the equipment.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiment provides a heat pump hot and cold water air conditioning system to solve the problem that the existing five-constant air conditioning system has a large number of cold and hot sources, resulting in a large equipment size and high cost.

[0009] The embodiment of the first aspect of the present application provides a heat pump cold and hot water air conditioning system, the heat pump cold and hot water air conditioning system comprising: a heat pump cold and hot water host, including a cold and hot source;

[0010] Fresh air module, the fresh air module is connected to the cold and heat sources of the heat pump cold and hot water host through a water supply pipe and a water return pipe, so that the hot water or cold water of the heat pump cold and hot water host is supplied to the fresh air module through the water supply pipe and flows back to the heat pump cold and hot water host through the water return pipe;

[0011] Indoor unit, the indoor unit is connected to the cold and heat sources of the heat pump cold and hot water host through a water supply pipe and a water return pipe.

[0012] In some alternative embodiments, the water supply pipe includes a first water supply pipe and a second water supply pipe, and the water return pipe includes a first water return pipe and a second water return pipe, so that the hot water of the heat pump cold and hot water host is supplied to the fresh air module through the first water supply pipe and flows back to the heat pump cold and hot water host through the first water return pipe, and the cold water is supplied to the fresh air module through the second water supply pipe and flows back to the heat pump cold and hot water host through the second water return pipe.

[0013] In some alternative embodiments, the fresh air module includes a heating / cooling section and a first heat exchange coil. The first heat exchange coil is arranged in the heating / cooling section. The water inlet end of the first heat exchange coil is communicated with both the first water supply pipe and the second water supply pipe, and the water return end of the first heat exchange coil is communicated with both the first water return pipe and the second water return pipe.

[0014] In some alternative embodiments, the heat pump cold and hot water air conditioning system further includes:

[0015] A first valve, arranged at the communication section between the first water supply pipe and the water inlet end of the first heat exchange coil, for controlling the communication or disconnection between the water inlet end of the first heat exchange coil and the first water supply pipe and the water inflow;

[0016] A second valve, arranged at the communication section between the second water supply pipe and the water inlet end of the first heat exchange coil, for controlling the communication or disconnection between the water inlet end of the first heat exchange coil and the second water supply pipe and the water inflow;

[0017] A third valve, arranged at the communication section between the first water return pipe and the water return end of the first heat exchange coil, for controlling the communication or disconnection between the water return end of the first heat exchange coil and the first water return pipe;

[0018] A fourth valve, arranged at the communication section between the second water return pipe and the water return end of the first heat exchange coil, for controlling the communication or disconnection between the water return end of the first heat exchange coil and the second water return pipe.

[0019] In some alternative embodiments, the fresh air module includes a humidifying / dehumidifying section and a second heat exchange coil. The second heat exchange coil is arranged in the humidifying / dehumidifying section. The water inlet end of the second heat exchange coil is communicated with both the first water supply pipe and the second water supply pipe, and the water return end of the first heat exchange coil is communicated with both the first water return pipe and the second water return pipe.

[0020] In some alternative embodiments, the heat pump cold and hot water air conditioning system further includes:

[0021] The fifth valve is provided at the connecting section between the first water supply pipeline and the water inlet end of the second heat exchange coil, and is used to control the connection or disconnection between the water inlet end of the second heat exchange coil and the first water supply pipeline and the water inflow rate.

[0022] The sixth valve is provided at the connecting section between the second water supply pipeline and the water inlet end of the second heat exchange coil, and is used to control the connection or disconnection between the water inlet end of the second heat exchange coil and the second water supply pipeline and the water inflow rate.

[0023] The seventh valve is provided at the connecting section between the first water return pipeline and the water return end of the second heat exchange coil, and is used to control the connection or disconnection between the water return end of the second heat exchange coil and the first water return pipeline.

[0024] The eighth valve is provided at the connecting section between the second water return pipeline and the water return end of the second heat exchange coil, and is used to control the connection or disconnection between the water return end of the second heat exchange coil and the second water return pipeline.

[0025] In some alternative embodiments, the fresh air module includes an air inlet section, a filtration section, a humidification / dehumidification section, a heating / cooling section, a fan section, and an air supply section arranged in sequence.

[0026] In some alternative embodiments, the heat pump cold and hot water air conditioning system further includes:

[0027] A water inlet pipeline extends to the humidification / dehumidification section, and a humidifying spray pipe is provided at the extended end of the water inlet pipeline, and the humidifying spray pipe is used for humidification.

[0028] In some alternative embodiments, the heat pump cold and hot water air conditioning system further includes:

[0029] A water inlet valve is provided on the water inlet pipeline and is used to control the opening and closing of the water inlet pipeline.

[0030] In some alternative embodiments, the humidifying spray pipe is located above the second heat exchange coil so that water droplets fall on the second heat exchange coil.

[0031] The heat pump cold and hot water air conditioning system provided by the embodiments of the present disclosure can achieve the following technical effects:

[0032] By using the cold and heat sources of the heat pump cold and hot water main unit to supply cold and heat to the fresh air module and the indoor unit, there is no need to separately set up a refrigeration and heating system in the fresh air module, thereby reducing the number of refrigeration and heating devices in the air conditioning system, reducing the manufacturing cost of the devices. Since there is no need to equip each fresh air module with an independent refrigeration and heating system, the overall size and weight of the devices are reduced, and the required installation space is also correspondingly reduced, which is convenient for installation in places with limited space. By reducing the number of refrigeration and heating systems, the overall energy efficiency of the air conditioning system can be improved. By setting up independent water supply pipelines and water return pipelines, the outlet air temperature of the fresh air module can be controlled more precisely, thereby achieving indoor constant temperature.

[0033] The above general description and the following description are only exemplary and explanatory, and are not intended to limit this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and among them:

[0035] Figure 1 is a schematic structural diagram of a heat pump cold and hot water air conditioning system provided by an embodiment of the present disclosure;

[0036] Figure 2 is a partial schematic structural diagram of a heat pump cold and hot water air conditioning system provided by an embodiment of the present disclosure;

[0037] Figure 3 is a partial schematic structural diagram of a heat pump cold and hot water air conditioning system in heating mode provided by an embodiment of the present disclosure;

[0038] Figure 4 is a partial schematic structural diagram of a heat pump cold and hot water air conditioning system in cooling mode provided by an embodiment of the present disclosure;

[0039] Figure 5 is a partial schematic structural diagram of a heat pump cold and hot water air conditioning system in heating mode provided by an embodiment of the present disclosure;

[0040] Figure 6 is a partial schematic structural diagram of a heat pump cold and hot water air conditioning system in cooling mode provided by an embodiment of the present disclosure.

[0041] REFERENCE SIGNS:

[0042] 10: Heat pump cold and hot water main unit,

[0043] 20: Fresh air module, 21: Air inlet section, 22: Filter section, 23: Humidification / dehumidification section, 24: Heating / cooling section, 25: Fan section, 26: Air supply section, 27: First heat exchange coil, 28: Second heat exchange coil,

[0044] 30: Indoor unit, 41: First water supply pipeline, 42: Second water supply pipeline, 51: First water return pipeline, 52: Second water return pipeline,

[0045] 61: First valve, 62: Second valve, 63: Third valve, 64: Fourth valve, 65: Fifth valve, 66: Sixth valve, 67: Seventh valve, 68: Eighth valve,

[0046] 70: Water inlet pipeline, 71: Humidification spray pipe,

[0047] 80: Water distributor,

[0048] 90: Water collector. Specific embodiments

[0049] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are for reference and illustration only and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to give 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 shown in a simplified manner to simplify the drawings.

[0050] In the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings, terms such as "first", "second", etc. 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 under appropriate circumstances so as to describe the embodiments of the present disclosure here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0051] In the embodiments of the present disclosure, the orientation or positional relationships indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. are based on the orientation or positional relationships shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent orientation or positional relationships, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0052] In addition, the terms "arranged", "connected", "fixed" should be understood in a broad sense. For example, "connected" 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 directly connected, or indirectly connected through an intermediate medium, or there can also be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0053] Unless otherwise specified, the term "plurality" means two or more.

[0054] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0055] The term "and / or" describes the relationship between objects and indicates that there can be three relationships. For example, A and / or B means: A or B, or, A and B.

[0056] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0057] Combined Figures 1 to 6 As shown, the arrow in the figure indicates the water flow direction. The present disclosure provides a heat pump cold and hot water air conditioning system, which includes: a heat pump cold and hot water main unit 10, a fresh air module 20, and an indoor unit 30. The heat pump cold and hot water main unit 10 includes a cold and heat source; the fresh air module 20 is connected to the cold and heat source of the heat pump cold and hot water main unit through a water supply pipeline and a water return pipeline, so that the hot water or cold water of the heat pump cold and hot water main unit 10 is supplied to the fresh air module 20 through the water supply pipeline and flows back to the heat pump cold and hot water main unit 10 through the water return pipeline; the indoor unit 30, and the indoor unit 30 is connected to the cold and heat source of the heat pump cold and hot water main unit through a water supply pipeline and a water return pipeline.

[0058] By adopting the embodiments of the present disclosure, by setting the heat pump cold and hot water main unit 10, the heat pump cold and hot water main unit 10 is an efficient and energy-saving hot water supply device, which transfers the low-quality heat in the environment to water through heat pump technology to produce hot water. The heat recovery technology means that in this process, the heat pump system can not only produce hot water, but also provide cooling or heating services for users at the same time, realizing the multi-effect utilization of energy.

[0059] By using the cold and heat source system of the heat pump cold and hot water main unit 10 to supply cold and heat to the fresh air module 20 and the indoor unit 30, there is no need to separately set a refrigeration and heating system in the fresh air module 20, thus reducing the number of refrigeration and heating devices in the air conditioning system, reducing the manufacturing cost of the devices. Since there is no need to equip each fresh air module 20 with an independent refrigeration and heating system, the overall size and weight of the device are reduced, and the required installation space is also correspondingly reduced, which is convenient for installation in occasions with limited space. By reducing the number of refrigeration and heating systems, the overall energy efficiency of the air conditioning system can be improved. By setting independent water supply pipelines and water return pipelines, the outlet air temperature of the fresh air module 20 can be more accurately controlled, so as to achieve indoor constant temperature.

[0060] Optionally, the water supply pipeline is connected to both the cold water source and the hot water source of the heat pump cold and hot water main unit 10, and the water supply pipeline can be selectively connected to one of the cold water source and the hot water source. The water return pipeline is connected to both the cold water source and the hot water source of the heat pump cold and hot water main unit 10, and the water return pipeline can be selectively connected to one of the cold water source and the hot water source and is connected in the same way as the water supply pipeline.

[0061] In this way, a single water supply pipe and a return water pipe can be used to supply cold or hot water to the fresh air module 20 or the indoor unit 30 simultaneously, reducing the number and complexity of the pipes and simplifying the system design.

[0062] Optionally, the fresh air module 20 includes an air inlet section 21, a filtration section 22, a humidification / dehumidification section 23, a heating / cooling section 24, a fan section 25, and an air supply section 26 arranged in sequence.

[0063] In this way, by setting the air inlet section 21, outside air can flow into the fresh air module 20 to provide sufficient fresh air for the room. By setting the filtration section 22, particulate matters such as dust, pollen, and bacteria in the outside air can be removed to improve the indoor air quality. By setting the humidification / dehumidification section 23, it can prevent the outside air from flowing into the room being overly dry or humid, ensuring a constant humidity of the indoor air. By setting the heating / cooling section 24, the temperature of the outside air flowing into the room can be changed to ensure a constant temperature of the indoor air. By setting the fan section 25, the fan can provide power for the air flow, driving the outside air to flow through each processing section of the fresh air module 20 in sequence to adjust the incoming air volume. By setting the air supply section 26, the processed air can be evenly supplied into the room to ensure a uniform distribution of the indoor air.

[0064] Optionally, the water supply pipe includes a first water supply pipe 41 and a second water supply pipe 42, and the water return pipe includes a first water return pipe 51 and a second water return pipe 52, so that the hot water of the heat pump cold and hot water main unit 10 is supplied to the fresh air module 20 through the first water supply pipe 41 and flows back to the heat pump cold and hot water main unit 10 through the first water return pipe 51, and the cold water of the heat pump cold and hot water main unit 10 is supplied to the fresh air module 20 through the second water supply pipe 42 and flows back to the heat pump cold and hot water main unit 10 through the second water return pipe 52.

[0065] With the embodiments of the present disclosure, by separately providing the first water supply line 41, the second water supply line 42, the first water return line 51, and the second water return line 52, the first water supply line 41 and the first water return line 51 are connected to the hot water source, so that the hot water of the heat pump hot and cold water host 10 can be supplied to the fresh air module 20 through the first water supply line 41 and flow back to the heat pump hot and cold water host 10 through the first water return line 51. The second water supply line 42 and the second water return line 52 are connected to the cold water source, so that the cold water of the heat pump hot and cold water host 10 can be supplied to the fresh air module 20 through the second water supply line 42 and flow back to the heat pump hot and cold water host 10 through the second water return line 52. By supplying cold water and hot water through separate pipelines, compared with the method of setting a single water supply line, the separate circulation of cold water and hot water can be achieved, avoiding the mixing of cold and hot water. The independent pipelines reduce the loss of energy during transmission and improve the efficiency of heat exchange. Secondly, the flow rate and temperature of cold water and hot water can be independently controlled, so as to more precisely control the heating and cooling effects of the fresh air module 20. In addition, the separate pipeline system reduces cross-interference and improves the stability and reliability of the system.

[0066] Optionally, the fresh air module 20 includes a heating / cooling section 24 and a first heat exchange coil 27. The first heat exchange coil 27 is disposed in the heating / cooling section 24. The water inlet end of the first heat exchange coil 27 is connected to both the first water supply line 41 and the second water supply line 42, and the water return end of the first heat exchange coil 27 is connected to both the first water return line 51 and the second water return line 52.

[0067] With the embodiments of the present disclosure, by providing the first heat exchange coil 27 in the heating / cooling section 24 of the fresh air module 20, the first heat exchange coil 27 can exchange heat with the air in the heating / cooling section 24, and the dual functions of fresh air heating and cooling can be achieved. By using the first heat exchange coil 27, components such as compressors can be eliminated, reducing the volume and occupied space of the fresh air module 20. And by controlling the inlet water temperature and the return water temperature of the first heat exchange coil 27, the outlet air temperature of the fresh air module 20 can be precisely controlled to meet the constant temperature requirement. By connecting the water inlet end of the first heat exchange coil 27 to both the first water supply line 41 and the second water supply line 42, and connecting the water return end of the first heat exchange coil 27 to both the first water return line 51 and the second water return line 52, the first heat exchange coil 27 can be flexibly switched between different water supply lines and water return lines, improving the flexibility and adaptability of the system.

[0068] Optionally, the heat pump cold and hot water air conditioning system further includes: a first valve 61, a second valve 62, a third valve 63, and a fourth valve 64. The first valve 61 is provided at the connecting section between the first water supply pipeline 41 and the water inlet end of the first heat exchange coil 27, and is used to control the connection or disconnection between the water inlet end of the first heat exchange coil 27 and the first water supply pipeline 41 and the water inflow rate; the second valve 62 is provided at the connecting section between the second water supply pipeline 42 and the water inlet end of the first heat exchange coil 27, and is used to control the connection or disconnection between the water inlet end of the first heat exchange coil 27 and the second water supply pipeline 42 and the water inflow rate; the third valve 63 is provided at the connecting section between the first water return pipeline 51 and the water return end of the first heat exchange coil 27, and is used to control the connection or disconnection between the water return end of the first heat exchange coil 27 and the first water return pipeline 51; the fourth valve 64 is provided at the connecting section between the second water return pipeline 52 and the water return end of the first heat exchange coil 27, and is used to control the connection or disconnection between the water return end of the first heat exchange coil 27 and the second water return pipeline 52.

[0069] By adopting the embodiment of the present disclosure, by providing the first valve 61, the second valve 62, the third valve 63, and the fourth valve 64, the water inlet and water return of the first heat exchange coil 27 can be independently controlled. For example, whether the water inlet of the first heat exchange coil 27 flows in from the first water supply pipeline 41 or the second water supply pipeline 42, or whether the water return of the first heat exchange coil 27 flows out from the first water return pipeline 51 or the second water return pipeline 52, so that the temperature of the fresh air module 20 can be adjusted more precisely. By providing the first valve 61 and the second valve 62, the first valve 61 and the second valve 62 can adjust the water flow rate, adjust the water inlet flow rate according to actual needs, and then control the heat exchange efficiency of the heat exchange coil, and more accurately adjust the air outlet temperature of the fresh air module 20 to ensure a constant indoor temperature.

[0070] Optionally, the heat pump cold and hot water air conditioning system further includes: a controller, which is electrically connected to the first valve 61, the second valve 62, the third valve 63, and the fourth valve 64. The controller is configured to control the first valve 61 and the third valve 63 to open and the second valve 62 and the fourth valve 64 to close when the fresh air module 20 is heating; when the fresh air module 20 is cooling, the controller controls the second valve 62 and the fourth valve 64 to open and the first valve 61 and the third valve 63 to close.

[0071] In this way, by providing the controller and electrically connecting the controller to the first valve 61, the second valve 62, the third valve 63, and the fourth valve 64, the controller can automatically control the opening and closing and the opening degree of the first valve 61, the second valve 62, the third valve 63, and the fourth valve 64, reducing the possibility of human operation errors and improving the reliability and stability of the system.

[0072] Optionally, the fresh air module 20 includes a humidifying / dehumidifying section 23 and a second heat exchange coil 28. The second heat exchange coil 28 is disposed in the humidifying / dehumidifying section 23. The water inlet end of the second heat exchange coil 28 is communicated with both the first water supply pipeline 41 and the second water supply pipeline 42. The water return end of the first heat exchange coil 27 is communicated with both the first water return pipeline 51 and the second water return pipeline 52.

[0073] By adopting the embodiment of the present disclosure, by arranging the second heat exchange coil 28 in the humidifying / dehumidifying section 23, the second heat exchange coil 28 can be used to dehumidify, heat or cool the air in the fresh air module 20. When it is not necessary to dehumidify the air in the fresh air module 20, the second heat exchange coil 28 can be used to exchange heat with the air in the fresh air module 20 for secondary heating and cooling with the first heat exchange coil 27. By communicating the water inlet end of the second heat exchange coil 28 with both the first water supply pipeline 41 and the second water supply pipeline 42, and arranging the water return end of the first heat exchange coil 27 to be communicated with both the first water return pipeline 51 and the second water return pipeline 52.

[0074] Combined with Figure 3 and Figure 5 as shown in, at this time, the fresh air module 20 is in the heating mode. Combined with Figure 4 and Figure 6 as shown in, at this time, the fresh air module 20 is in the cooling mode.

[0075] Optionally, the heat pump cold and hot water air conditioning system further includes: a fifth valve 65, a sixth valve 66, a seventh valve 67 and an eighth valve 68. The fifth valve 65 is disposed in the connecting section between the first water supply pipeline 41 and the water inlet end of the second heat exchange coil 28, and is used to control the connection or disconnection between the water inlet end of the second heat exchange coil 28 and the first water supply pipeline 41 and the water inflow; the sixth valve 66 is disposed in the connecting section between the second water supply pipeline 42 and the water inlet end of the second heat exchange coil 28, and is used to control the connection or disconnection between the water inlet end of the second heat exchange coil 28 and the second water supply pipeline 42 and the water inflow; the seventh valve 67 is disposed in the connecting section between the first water return pipeline 51 and the water return end of the second heat exchange coil 28, and is used to control the connection or disconnection between the water return end of the second heat exchange coil 28 and the first water return pipeline 51; the eighth valve 68 is disposed in the connecting section between the second water return pipeline 52 and the water return end of the second heat exchange coil 28, and is used to control the connection or disconnection between the water return end of the second heat exchange coil 28 and the second water return pipeline 52.

[0076] With the embodiments of the present disclosure, by providing the fifth valve 65, the sixth valve 66, the seventh valve 67, and the eighth valve 68, the water inlet and return of the second heat exchange coil 28 can be independently controlled. For example, the water inlet of the second heat exchange coil 28 flows in from the first water supply pipeline 41 or the second water supply pipeline 42, and the return water of the first heat exchange coil 27 flows out from the first return water pipeline 51 or the second return water pipeline 52, so that the temperature of the fresh air module 20 can be adjusted more precisely. By providing the fifth valve 65 and the sixth valve 66, the fifth valve 65 and the sixth valve 66 can adjust the water inlet flow rate, adjust the water inlet flow rate according to actual needs, and then control the heat exchange efficiency of the second heat exchange coil 28, and more accurately adjust the dehumidification efficiency of the fresh air module 20 to avoid the situation that the indoor humidity is too high due to fresh air entering the room.

[0077] Optionally, the controller is electrically connected to the fifth valve 65, the sixth valve 66, the seventh valve 67, and the eighth valve 68 for controlling the operation of the fifth valve 65, the sixth valve 66, the seventh valve 67, and the eighth valve 68.

[0078] In this way, when the fresh air module 20 is in the dehumidification mode, the controller controls the seventh valve 67 and the eighth valve 68 to open and the fifth valve 65 and the sixth valve 66 to close.

[0079] Optionally, the heat pump cold and hot water air conditioning system further includes: a water inlet pipeline 70, the water inlet pipeline 70 extends to the humidification / dehumidification section 23, and a humidifying nozzle 71 is provided at the extended end of the water inlet pipeline 70 for humidification.

[0080] With the embodiments of the present disclosure, by providing the water inlet pipeline 70 and extending the water inlet pipeline 70 to the humidification / dehumidification section 23, water can flow into the fresh air module 20 along the water inlet pipeline 70. By providing the humidifying nozzle 71 at the extended end of the water inlet pipeline 70, water can flow out from the humidifying nozzle 71 to humidify or dehumidify the air in the fresh air module 20. Secondly, the humidifying nozzle 71 can evenly spray water into the air to improve the humidification efficiency. In addition, by adjusting the water flow rate of the water inlet pipeline 70, the humidification amount can be controlled to meet different humidity requirements.

[0081] Optionally, the heat pump cold and hot water air conditioning system further includes: a water inlet valve, the water inlet valve is provided on the water inlet pipeline 70, and the water inlet valve is used to control the opening and closing of the water inlet pipeline 70 and the water inflow.

[0082] With the embodiments of the present disclosure, by providing the water inlet valve and arranging the water inlet valve on the water inlet pipeline 70, the water inlet valve can control the water source supply of the water inlet pipeline 70 and open or close the water flow according to the indoor humidity requirement. By adjusting the opening degree of the water inlet valve, the humidification amount can be accurately controlled to adapt to different indoor humidity requirements.

[0083] Optionally, the controller is electrically connected to the water inlet valve. When the fresh air module 20 turns on the humidification function, the controller controls the water inlet valve to open and controls the seventh valve 67 and the eighth valve 68 to close, so as to avoid simultaneous opening of humidification and dehumidification, which may affect the humidification effect.

[0084] Optionally, the water inlet pipe 70 is communicated with the first return water pipe 51.

[0085] By communicating the water inlet pipe 70 with the first return water pipe 51, the first return water pipe 51 can supply water to the water inlet pipe 70, eliminating the need for a separate external water source.

[0086] Optionally, the water inlet pipe 70 is adapted to be communicated with the municipal water supply pipe.

[0087] In this way, it can be ensured that the air-conditioning system can obtain sufficient water in time when humidification is required.

[0088] Optionally, the humidifying nozzle 71 is located above the second heat exchange coil 28, so that water droplets can fall on the second heat exchange coil 28.

[0089] With the embodiment of the present disclosure, by locating the humidifying nozzle 71 above the second heat exchange coil 28, when humidification is required, the water droplets ejected from the humidifying nozzle 71 can fall on the surface of the second heat exchange coil 28. Moreover, when the second heat exchange coil 28 is in a heating state, the heat of the second heat exchange coil 28 can be utilized to accelerate the evaporation of water, improving the humidification efficiency.

[0090] Optionally, the heat pump cold and hot water air-conditioning system further includes: a water distributor 80, which is arranged on the first water supply pipe 41 and is adapted to be connected to other water-using devices.

[0091] In this way, by arranging the water distributor 80 on the first water supply pipe 41, the water distributor 80 can distribute the water flow in the first water supply pipe 41 to different pipelines or devices to provide hot water for other water-using devices.

[0092] Optionally, the heat pump cold and hot water air-conditioning system further includes: a water collector 90, which is arranged on the first return water pipe 51 and is adapted to be connected to the municipal water supply system.

[0093] In this way, the municipal system can be used to replenish water to the heat pump cold and hot water main unit 10, ensuring that the heat pump cold and hot water main unit 10 has sufficient water source.

[0094] The above description and the drawings sufficiently illustrate embodiments of the present disclosure such that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in 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 drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A heat pump hot and cold water air conditioning system, characterized in that: include: Heat pump hot and cold water main unit, including hot and cold sources; A fresh air module, the fresh air module is connected to the cold and hot sources of the heat pump hot and cold water main unit through a water supply pipeline and a return water pipeline, so that the hot water or cold water of the heat pump hot and cold water main unit is supplied to the fresh air module through the water supply pipeline and flows back to the heat pump hot and cold water main unit through the return water pipeline; The indoor unit is connected to the cold and hot sources of the heat pump hot and cold water main unit through a water supply pipeline and a return pipeline.

2. The heat pump hot and cold water air conditioning system according to claim 1, characterized in that: The water supply pipeline includes a first water supply pipeline and a second water supply pipeline, and a first water return pipeline and a second water return pipeline, so that the hot water of the heat pump hot and cold water main unit is supplied to the fresh air module through the first water supply pipeline and flows back to the heat pump hot and cold water main unit through the first return pipeline, and the cold water is supplied to the fresh air module through the second water supply pipeline and flows back to the heat pump hot and cold water main unit through the second return pipeline.

3. The heat pump hot and cold water air conditioning system according to claim 2, characterized in that: The fresh air module includes a heating / cooling section and a first heat exchange coil. The first heat exchange coil is arranged in the heating / cooling section. The water inlet end of the first heat exchange coil is connected to both the first water supply pipeline and the second water supply pipeline. The return water end of the first heat exchange coil is connected to both the first return water pipeline and the second return water pipeline.

4. The heat pump hot and cold water air conditioning system according to claim 3, characterized in that: Also includes: A first valve is provided at the connecting section between the first water supply pipeline and the water inlet end of the first heat exchange coil, and is used to control whether the water inlet end of the first heat exchange coil is connected or disconnected with the first water supply pipeline and the water inlet amount; The second valve is provided at the connecting section between the second water supply pipeline and the water inlet end of the first heat exchange coil, and is used to control the connection or disconnection between the water inlet end of the first heat exchange coil and the second water supply pipeline and the water inlet amount; A third valve is provided at the connecting section between the first return water pipeline and the return water end of the first heat exchange coil, and is used to control the connection or disconnection between the return water end of the first heat exchange coil and the first return water pipeline; The fourth valve is arranged at the connecting section between the second water return pipeline and the water return end of the first heat exchange coil, and is used to control the connection or disconnection between the water return end of the first heat exchange coil and the second water return pipeline.

5. The heat pump hot and cold water air conditioning system according to claim 2, characterized in that: The fresh air module includes a humidification / dehumidification section and a second heat exchange coil. The second heat exchange coil is arranged in the humidification / dehumidification section. The water inlet end of the second heat exchange coil is connected to both the first water supply pipeline and the second water supply pipeline. The return water end of the first heat exchange coil is connected to both the first return water pipeline and the second return water pipeline.

6. The heat pump hot and cold water air conditioning system according to claim 5, characterized in that: Also includes: A fifth valve is provided at the connecting section between the first water supply pipeline and the water inlet end of the second heat exchange coil, and is used to control whether the water inlet end of the second heat exchange coil is connected or disconnected with the first water supply pipeline and the water inlet amount; a sixth valve, provided at the connecting section between the second water supply pipeline and the water inlet end of the second heat exchange coil, for controlling the connection or disconnection between the water inlet end of the second heat exchange coil and the second water supply pipeline and the water inlet amount; A seventh valve is provided at the connecting section between the first water return pipeline and the water return end of the second heat exchange coil, and is used to control whether the water return end of the second heat exchange coil is connected to or disconnected from the first water return pipeline; The eighth valve is arranged in the connecting section between the second return water pipeline and the return water end of the second heat exchange coil, and is used to control the connection or disconnection between the return water end of the second heat exchange coil and the second return water pipeline.

7. The heat pump hot and cold water air conditioning system according to claim 1, characterized in that: The fresh air module includes an air intake section, a filtering section, a humidification / dehumidification section, a heating / cooling section, a fan section and an air supply section which are arranged in sequence.

8. The heat pump hot and cold water air conditioning system according to any one of claims 5 to 7, characterized in that: Also includes: The water inlet pipeline is extended to the humidification / dehumidification section. A humidification nozzle is provided at the extended end of the water inlet pipeline, and the humidification nozzle is used for humidification.

9. The heat pump hot and cold water air conditioning system according to claim 8, characterized in that: Also includes: The water inlet valve is installed in the water inlet pipeline and is used to control the opening and closing of the water inlet pipeline.

10. The heat pump hot and cold water air conditioning system according to claim 8, characterized in that: The humidifying nozzle is located above the second heat exchange coil so that water drops onto the second heat exchange coil.

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