Air conditioner water circulation system and hydraulic center with domestic hot water function thereof

Abstract

The utility model relates to an air conditioner water circulation system and a hydraulic center with a domestic hot water function thereof. The air conditioner water circulation system comprises a shell, an energy storage water tank arranged in the shell, and a first water return connector, a second water outlet connector, a second water return connector and a second water outlet connector which are arranged on the side wall of the shell, the first water return connector and the second water outlet connector are communicated with the energy storage water tank through a tail end water return pipeline and a tail end water outlet pipeline respectively. The side wall of the shell is further provided with a water tank water outlet connector and a water tank water return connector, the second water return connector is communicated with the water tank water outlet connector through a first pipeline, a three-way valve is arranged in the first pipeline, and the three-way valve is further communicated with the energy storage water tank. The water tank water return connector is communicated with the second water outlet connector through a second pipeline, a three-way connecting piece is arranged in the second pipeline, and the three-way connecting piece is further communicated with the energy storage water tank. The scheme has the advantages of improving the energy utilization efficiency, simplifying the system structure and saving the space.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of hydraulic center and air conditioning system, especially to an air conditioning water circulation system and a hydraulic center with hot water function. BACKGROUND

[0002] The hydraulic center is an integrated device, which integrates water pump, valve, filter, constant pressure water supplement device, water pump control electric control cabinet and other components in a box. It is widely used in air conditioning water, cooling water, sanitary hot water circulation delivery of central air conditioning water system, and delivery of other water medium.

[0003] The existing hydraulic module in the market can refer to the air conditioning system, hydraulic center and water distribution tank with exhaust and sewage functions described in the Chinese utility model patent text with the announcement number "CN220818028U". When the hydraulic center is used, the main heat exchanger in the air conditioning system and the buffer water tank are connected by a pipeline to form a first circulation loop, and the hydraulic center, the buffer water tank and the air conditioning terminal are connected by a pipeline to form a second circulation loop. In the running process, the air conditioning main machine heats or cools the water in the buffer water tank; when the air conditioning terminal needs to work, the water in the buffer water tank runs in the second circulation loop.

[0004] The above-mentioned hydraulic center has some problems in the design of double circulation loop. Specifically, this scheme cannot provide hot water for life, such as shower water, dishwashing water and laundry water, even if a hot water tank for life is added to the system, it can only be connected to the second circulation loop as a kind of air conditioning terminal. But since the air conditioning main machine can only heat the hot water in the energy storage water tank, the hot water stored in the energy storage water tank is basically between 40-45℃, and the hot water stored in the energy storage water tank cannot further heat the water in the hot water tank for life to reach the required use temperature, so it cannot meet the use demand. SUMMARY

[0005] In order to solve the above-mentioned problems, the first purpose of the utility model is to provide a hydraulic center with hot water function, which has the advantages of improving energy utilization efficiency, simplifying system structure, saving space, reducing maintenance cost and accurately controlling hot water temperature.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The present application provides a hydraulic center with a domestic hot water function, comprising a shell, an energy storage water tank arranged inside the shell, a first return water interface and a first water outlet interface arranged on the side wall of the shell for connecting to the air-conditioning terminal, and a second return water interface and a second water outlet interface arranged on the side wall of the shell for connecting to the air-conditioning host; the first return water interface and the first water outlet interface are connected to the energy storage water tank through the terminal return water pipeline and the terminal outlet water pipeline respectively; a water tank outlet interface and a water tank return water interface are also provided on the side wall of the shell, the second return water interface is connected to the water tank outlet interface through a first pipeline, a three-way valve is provided in the first pipeline, and the three-way valve is also connected to the energy storage water tank; the water tank return water interface is connected to the second water outlet interface through a second pipeline, a three-way connector is provided in the second pipeline, and the three-way connector is also connected to the energy storage water tank.

[0008] Furthermore, the present application also proposes that a first water pump is provided in the first pipeline between the three-way valve and the second return water interface, or the second pipeline between the three-way connector and the second water outlet interface, or the external pipeline connecting the second return water interface and the second water outlet interface; and a second water pump is provided in the terminal return water pipeline or the terminal water outlet pipeline.

[0009] Furthermore, the present application also proposes that an exhaust valve is provided at the upper end of the energy storage water tank, a sewage outlet is provided at the lower end, and a sewage plug is provided on the sewage outlet.

[0010] Furthermore, the present application also proposes that an expansion tank is connected to the energy storage water tank.

[0011] Furthermore, the present application also proposes that a pressure relief valve is provided on the energy storage water tank, and a temperature sensor is plugged into the temperature sensing hole on the energy storage water tank.

[0012] Furthermore, the present application also proposes that a filter is provided on the terminal return water pipe between the energy storage water tank and the first return water interface, and a filter is provided on the second pipe between the energy storage water tank and the water tank return water interface.

[0013] Furthermore, the present application also proposes that a water supply pipeline connected to the energy storage water tank is also provided in the shell, and a water supply valve is provided on the water supply pipeline.

[0014] Furthermore, the present application also proposes that the energy storage water tank and the terminal water outlet pipeline are connected through a pressure differential balancing pipeline, and a pressure differential balancing valve is provided on the pressure differential balancing pipeline.

[0015] The utility model discloses a second purpose at providing a kind of air conditioning water circulation system, including air conditioning terminal, air conditioning host, hydraulic center and domestic hot water tank, the hydraulic center is above-mentioned hydraulic center, the first return water interface of hydraulic center is connected with the water outlet of air conditioning terminal, and the first water outlet interface is connected with the water inlet of air conditioning terminal respectively;The second return water interface of hydraulic center is connected with the water outlet of air conditioning host, and the second water outlet interface is connected with the water inlet of air conditioning host;The water tank return water interface of hydraulic center is connected with the water outlet of domestic hot water tank, and the water tank water outlet interface is connected with the water inlet of domestic hot water tank respectively;When three-way valve AC is connected, circulating loop is formed between air conditioning host and the energy storage water tank of hydraulic center;When three-way valve BC is connected, circulating loop is formed between air conditioning host and domestic hot water tank.

[0016] Further, the application also provides, the air conditioning terminal is built as one or more of fan-coil, floor heating and radiator;The air conditioning terminal is built as multiple, and multiple air conditioning terminals are connected in parallel downstream of the first water outlet interface.

[0017] As can be known from the above, the hydraulic center and air conditioning water circulation system with domestic hot water function provided by the application include a shell, an energy storage water tank arranged inside the shell, a first return water interface, a second water outlet interface, a second return water interface and a second water outlet interface arranged on the side wall of the shell, the first return water interface and the second water outlet interface are connected with the energy storage water tank through a terminal return water pipeline and a terminal water outlet pipeline respectively, a water tank water outlet interface and a water tank return water interface are further arranged on the side wall of the shell, the second return water interface and the water tank water outlet interface are connected through a first pipeline, a three-way valve is arranged in the first pipeline, the three-way valve also connects the energy storage water tank, the water tank return water interface and the second water outlet interface are connected through a second pipeline, a three-way connecting piece is arranged in the second pipeline, and the three-way connecting piece also connects the energy storage water tank. By arranging the three-way valve and the three-way connecting piece, flexible switching between the air conditioning host and the energy storage water tank and the domestic hot water tank is realized, the heat generated by the air conditioning system is effectively utilized to heat domestic water, and the advantages of improving energy utilization efficiency, simplifying system structure, saving space, reducing maintenance cost and accurately controlling domestic hot water temperature are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A schematic diagram of the hydraulic center provided by the application is shown.

[0019] Figure 2 A schematic diagram of the air conditioning water circulation system provided by the application is shown. DETAILED DESCRIPTION

[0020] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0021] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0022] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more, unless otherwise explicitly limited.

[0023] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like 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, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] In the present application, unless otherwise explicitly specified and limited, the first feature "above" or "below" the second feature can include the first and second features directly contacting, or the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and 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 includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0025] Example 1:

[0026] As Figure 1 shown, the present embodiment proposes a water force center with hot water function, including a shell 11, and an energy storage water tank 2 arranged inside the shell 11, and a first return water interface 12 and a first water outlet interface 13 arranged on the side wall of the shell 11 for connecting the air conditioner terminal, and a second return water interface 14 and a second water outlet interface 15 arranged on the side wall of the shell 11 for connecting the air conditioner host; the first return water interface 12 and the first water outlet interface 13 are respectively connected with the energy storage water tank 2 through the terminal return water pipeline 100 and the terminal water outlet pipeline 102; the side wall of the shell 11 is further provided with a water tank water outlet interface 16 and a water tank return water interface 17, the second return water interface 14 and the water tank water outlet interface 16 are communicated through the first pipeline 103, the three-way valve 31 is arranged in the first pipeline 103, the three-way valve 31 also communicates with the energy storage water tank 2; the water tank return water interface 17 and the second water outlet interface 15 are communicated through the second pipeline 104, the three-way connecting piece 32 is arranged in the second pipeline 104, the three-way connecting piece 32 also communicates with the energy storage water tank 2. Among them, the three-way valve 31 and the three-way connecting piece 32 are the key technical features of the present application. The three-way valve 31 can realize the switching between the second return water interface 14 and the water tank water outlet interface 16, so that the hot water generated by the air conditioner host can directly enter the hot water tank for heating, without passing through the energy storage water tank 2. The three-way connecting piece 32 is used to connect the water tank return water interface 17 and the second water outlet interface 15, to ensure the smooth flow of water in different working modes. Further, the switching operation of the three-way valve 31 and the three-way connecting piece 32 can be realized by manual or automatic control, as a preferred embodiment, an electric valve can be used for automatic control to improve the intelligent degree and operation convenience of the system.

[0027] Therefore, by arranging the water tank water outlet interface 16 and the water tank return water interface 17 on the side wall of the shell 11, and using the three-way valve 31 and the three-way connecting piece 32 to communicate the second return water interface 14, the water tank water outlet interface 16, the water tank return water interface 17 and the second water outlet interface 15 with the energy storage water tank 2, a water force center which can realize the hot water function is formed. Specifically, when the three-way valve 31 communicates the second return water interface 14 and the energy storage water tank 2, the hot water generated by the air conditioner host heats or cools the energy storage water tank 2, and the energy storage water tank 2 can heat or cool the air conditioner terminal. When hot water is needed, the three-way valve 31 communicates the second return water interface 14 and the water tank water outlet interface 16, and the hot water generated by the air conditioner host heats the water in the hot water tank. At this time, the whole cycle does not pass through the energy storage water tank 2, the air conditioner host directly heats the hot water tank, which is equivalent to a one-pump system, the loop is short, and the heating efficiency is higher, which can heat the hot water to the required temperature.

[0028] Compared with the prior art, the application has the advantages that by simple structural adjustment and functional expansion, the technical problem that the existing hydraulic center cannot provide domestic hot water is solved. Specifically, by introducing the three-way valve 31 and the three-way connecting piece 32, the application realizes direct heat exchange between the air conditioner main machine and the domestic hot water tank, improves the heating efficiency of domestic hot water, and meets the user's demand for domestic hot water. In addition, the structural design of the application is simple, easy to implement, and has high reliability and stability, and is suitable for various central air conditioning water systems.

[0029] Further, the application also proposes that by setting water pumps on key pipelines, the water flow is ensured to circulate effectively in different pipelines, thereby solving the problem of poor water flow or failure to achieve the expected circulation effect. The first water pump 33 and the second water pump 34 are set in the first pipeline 103 between the second water return interface 14 and the water tank water outlet interface 16, the second pipeline 104 between the water tank water return interface 17 and the second water outlet interface 15, and the end water return pipeline 100 and the end water outlet pipeline 102, respectively, to ensure the continuous and effective circulation of water flow and improve the overall efficiency and stability of the system. Specifically, the first water pump 33 can be arranged on the first pipeline 103 between the three-way valve 31 and the second water return interface 14, or the second pipeline 104 between the three-way connecting piece 32 and the second water outlet interface 15, or the external pipeline connecting the second water return interface 14 and the second water outlet interface 15. The second water pump 34 can be arranged in the end water return pipeline 100 or the end water outlet pipeline 102. As a preferred embodiment, the first water pump 33 and the second water pump 34 can use water pumps of different powers and types to adapt to the water flow demand in different pipelines. For example, the first water pump 33 can select a water pump with larger power to ensure effective circulation in long-distance or high-resistance pipelines; and the second water pump 34 can select a water pump with smaller power to adapt to the water flow demand in the end pipeline. Thus, by setting water pumps on key pipelines, the effective circulation of water flow in different pipelines is ensured, and the problem of poor water flow or failure to achieve the expected circulation effect is solved. Compared with the prior art, the technical scheme of the application not only improves the overall efficiency and stability of the system, but also ensures the effective circulation of water flow in different pipelines, thereby solving the problem that the existing technology cannot meet the demand for domestic hot water.

[0030] Further, the application also proposes that the upper end of the energy storage water tank 2 is provided with an exhaust valve 35, and the lower end is provided with a sewage outlet, and the sewage outlet is provided with a sewage plug 36. Among them, the exhaust valve 35 is arranged to exhaust the air in the water tank, preventing air accumulation from affecting the normal work of the water tank. The sewage outlet is arranged and closed through the sewage plug 36, which facilitates the regular cleaning of the sewage in the water tank and keeps the inside of the water tank clean. As a preferred embodiment, the exhaust valve 35 can adopt an automatic exhaust valve 35, which can automatically open or close when the pressure in the water tank changes, ensuring the timely exhaust of air. The sewage plug 36 can adopt a threaded plug, which is convenient to disassemble and install, so as to facilitate the regular sewage operation. In addition, the position of the sewage outlet can be designed at the lowest point of the energy storage water tank 2, so as to facilitate the centralized discharge of sewage. Therefore, the upper end of the energy storage water tank 2 is provided with an exhaust valve 35 for exhausting the air in the water tank, preventing air accumulation from affecting the normal work of the water tank; the lower end is provided with a sewage outlet, and the sewage outlet is closed through the sewage plug 36, which facilitates the regular cleaning of the sewage in the water tank and keeps the inside of the water tank clean. These features work together to ensure the normal operation and maintenance of the energy storage water tank 2, and solve the problems of exhaust and sewage of the energy storage water tank 2. Specifically, by arranging the exhaust valve 35 and the sewage outlet, not only the working efficiency of the energy storage water tank 2 is improved, but also the service life of the water tank is prolonged, and the maintenance cost is reduced. Compared with the prior art, the technical scheme of the application is more comprehensive and effective, and can better meet the needs in actual application.

[0031] Further, the application also proposes that the energy storage water tank 2 is connected with an expansion tank. Specifically, the connection of the expansion tank can effectively absorb and buffer the volume change of the water in the energy storage water tank 2. When the water volume expands or shrinks due to temperature change, the expansion tank can stabilize the system pressure and prevent the system pressure from fluctuating, thereby ensuring the stable operation of the system. As a preferred embodiment, the expansion tank can be fixed on the energy storage water tank 2 by screw connection or flange connection. In addition, the capacity of the expansion tank can be selected according to the capacity of the energy storage water tank 2 and the working pressure of the system, so as to ensure its effective function under different working conditions. Therefore, by connecting the expansion tank on the energy storage water tank 2, the problem of system pressure fluctuation caused by water volume expansion or shrinkage due to water temperature change can be effectively solved. Compared with the prior art, the technical scheme of the application not only improves the stability of the system, but also simplifies the maintenance and operation of the system, especially in the central air conditioning water system and other places that require stable pressure, which has obvious advantages.

[0032] Further, the application also proposes that the energy storage water tank 2 is provided with a pressure relief valve 37, and a temperature sensor 38 is inserted into the temperature sensing hole on the energy storage water tank 2. Specifically, the pressure relief valve 37 can automatically release pressure when the internal pressure of the energy storage water tank 2 is too high, preventing the water tank from being damaged due to excessive pressure. The temperature sensor 38 can monitor the water temperature in the energy storage water tank 2 in real time by being inserted into the temperature sensing hole, ensuring that the water temperature is within a safe range, thereby improving the safety and reliability of the system. As a preferred embodiment, the pressure relief valve 37 can be a spring-type pressure relief valve or a diaphragm-type pressure relief valve, which can automatically open at a set pressure to release excess pressure. The temperature sensor 38 can be a thermocouple or a thermistor, which can accurately measure the water temperature and transmit data to the control system for real-time monitoring and adjustment. In this way, by providing the energy storage water tank 2 with a pressure relief valve 37 and a temperature sensor 38, the problem of excessive pressure in the energy storage water tank 2 in high-temperature environments can be effectively solved, and the water temperature in the energy storage water tank 2 can be monitored in real time. This technical solution not only improves the safety and reliability of the system, but also enhances the adaptability and stability of the system, especially in high-temperature environments, effectively preventing the energy storage water tank 2 from being damaged due to excessive pressure, ensuring the normal operation of the system.

[0033] Further, the application also proposes that a filter 39 is provided on the end return water pipeline 100 between the energy storage water tank 2 and the first return water interface 12, and a filter 39 is provided on the second pipeline 104 between the energy storage water tank 2 and the water tank return water interface 17. Specifically, the filter 39 can take various forms, such as a mesh filter 39, an activated carbon filter 39, or a ceramic filter 39, etc. The mesh filter 39 intercepts impurities in the pipeline through its fine mesh, the activated carbon filter 39 removes organic matter and odors in water through adsorption, and the ceramic filter 39 effectively filters small particles with its high-density pore structure. As a preferred embodiment, the filter 39 can be designed to be detachable, making it easy to clean and replace the filter element regularly, thereby ensuring the sustained effectiveness of the filtration effect. In this way, by providing a filter 39 on the pipeline between the energy storage water tank 2 and the first return water interface 12, and a filter 39 on the second pipeline 104 between the energy storage water tank 2 and the water tank return water interface 17, impurities in the pipeline can be effectively filtered out, preventing impurities from entering the energy storage water tank 2, thereby ensuring the cleanliness of the water and prolonging the service life of the system. Compared with the prior art, the technical solution of the application not only solves the problem of impurity accumulation in the pipeline, but also improves the stability and reliability of the system.

[0034] Further, the application also proposes that the shell 11 is further provided with a water supplement pipeline connected with the energy storage water tank 2, and a water supplement valve 30 is arranged on the water supplement pipeline. Specifically, the design of the water supplement pipeline enables the external water source to supplement water to the energy storage water tank 2 through the water supplement valve 30. The arrangement of the water supplement valve 30 allows precise control of the water supplement process, ensuring that the energy storage water tank 2 can be timely supplemented when needed, thereby maintaining the stability of the water quantity in the water tank. As a preferred embodiment, the water supplement valve 30 can adopt an electric valve or a manual valve, and the water level of the energy storage water tank 2 is detected by a sensor. When the water level is lower than the preset value, the water supplement valve 30 is automatically or manually opened for water supplement. Thus, through the arrangement of the water supplement pipeline and the water supplement valve 30, the control problem of the water supplement path between the energy storage water tank 2 and the external water source is solved. This design not only ensures that the energy storage water tank 2 can be timely supplemented when needed, but also avoids the situation of over-supplement or insufficient supplement of the water tank through the control of the water supplement valve 30, thereby improving the stability and reliability of the system. Compared with the prior art, the technical scheme of the application is more flexible and efficient, and can better meet the needs in actual application.

[0035] Further, the application also proposes that the energy storage water tank 2 and the terminal water outlet pipeline 102 are connected through a pressure difference balance pipeline, and a pressure difference balance valve 301 is arranged on the pressure difference balance pipeline. Specifically, the design of the pressure difference balance pipeline enables the pressure difference between the energy storage water tank 2 and the terminal water outlet pipeline 102 to be adjusted and balanced through the pressure difference balance valve 301. The pressure difference balance valve 301 functions to automatically adjust when the pressure difference between the energy storage water tank 2 and the terminal water outlet pipeline 102 changes, ensuring the stability of the water flow. For example, during system operation, if the pressure of the energy storage water tank 2 is higher than that of the terminal water outlet pipeline 102, the pressure difference balance valve 301 will automatically open, allowing water to flow from the energy storage water tank 2 to the terminal water outlet pipeline 102, thereby reducing the pressure of the energy storage water tank 2. Conversely, if the pressure of the terminal water outlet pipeline 102 is higher than that of the energy storage water tank 2, the pressure difference balance valve 301 will automatically close or partially close to prevent water from flowing in the opposite direction, maintaining the pressure balance of the system. As a preferred embodiment, the pressure difference balance valve 301 can adopt an adjustable valve, which is adjusted by a manual or automatic control system to adjust the opening degree of the valve to adapt to different working conditions. Further, the pressure difference balance valve 301 can be equipped with a pressure sensor and a controller to realize real-time monitoring and automatic adjustment of the pressure difference, thereby improving the response speed and adjustment accuracy of the system. Thus, through the function of the pressure difference balance valve 301, the pressure difference between the energy storage water tank 2 and the terminal water outlet pipeline 102 can be effectively adjusted and balanced, ensuring the stability of the water flow and the normal operation of the system. This design avoids the problem of system failure or efficiency reduction caused by excessive pressure difference, improving the reliability and operating efficiency of the system.

[0036] Embodiment 2:

[0037] As Figure 2 shown, the embodiment also proposes an air conditioner water circulation system, which comprises an air conditioner terminal 4, an air conditioner host 5, a water power center 1 and a domestic hot water tank 6. The water power center 1 adopts the water power center 1 described in embodiment 1, and is connected with the air conditioner terminal 4, the air conditioner host 5 and the domestic hot water tank 6 through specific interfaces and pipelines to form different circulation loops. Specifically, the first water return interface 12 of the water power center 1 is connected with the water outlet of the air conditioner terminal 4, and the first water outlet interface 13 is connected with the water inlet of the air conditioner terminal 4; the second water return interface 14 of the water power center 1 is connected with the water outlet of the air conditioner host 5, and the second water outlet interface 15 is connected with the water inlet of the air conditioner host 5; the water tank water return interface 17 of the water power center 1 is connected with the water outlet of the domestic hot water tank 6, and the water tank water outlet interface 16 is connected with the water inlet of the domestic hot water tank 6. When the AC of the three-way valve 31 is connected, a circulation loop is formed between the air conditioner host 5 and the energy storage water tank 2 of the water power center 1; when the BC of the three-way valve 31 is connected, a circulation loop is formed between the air conditioner host 5 and the domestic hot water tank 6.

[0038] The above-mentioned hydraulic center 1 is an integrated device that integrates the water pump, valve, filter 39, constant pressure water supplementing device, water pump control electric control cabinet and other components in a box. It is widely used in the circulation and transportation of air conditioning water, cooling water, sanitary hot water and other water media in central air conditioning water systems. Therefore, the air conditioning water circulation system realizes the direct connection between the air conditioning host 5 and the domestic hot water tank 6 through the integrated hydraulic center 1, and through the switching of the three-way valve 31, a circulating loop can be formed between the air conditioning host 5 and the energy storage water tank 2, or a circulating loop can be formed between the air conditioning host 5 and the domestic hot water tank 6. In this way, the air conditioning host 5 can not only heat or cool the water in the energy storage water tank 2, but also directly heat the water in the domestic hot water tank 6, thereby solving the technical problem that the air conditioning water circulation system cannot provide domestic hot water. Compared with the prior art, the technical scheme of the present application increases the three-way valve 31 and the corresponding pipeline connection, so that the air conditioning host 5 can directly heat the water in the domestic hot water tank 6, improving the flexibility and practicality of the system. The design of the hydraulic center 1 in the present scheme enables the air conditioning host 5 to not only provide cold and hot water for the air conditioning system, but also provide hot water for the domestic hot water tank 6. The switching of the three-way valve 31AC and the three-way valve 31BC controls the circulating loop between the air conditioning host 5 and the energy storage water tank 2 or the domestic hot water tank 6. As a preferred embodiment, the three-way valve 31AC and the three-way valve 31BC can be switched by electric or manual means to adapt to different use requirements. Further, the air conditioning terminal 4 can be constructed as one or more of a fan coil, floor heating and radiator, and can be connected in parallel downstream of the first water outlet interface 13 to improve the flexibility and efficiency of the system. Therefore, the present application introduces the domestic hot water tank 6 into the air conditioning water circulation system, and utilizes the multi-interface design of the hydraulic center 1 to realize the flexible switching between the air conditioning host 5 and the energy storage water tank 2 and the domestic hot water tank 6. When the three-way valve 31AC is connected, the air conditioning host 5 and the energy storage water tank 2 form a circulating loop for air conditioning system refrigeration or heating; when the three-way valve 31BC is connected, the air conditioning host 5 and the domestic hot water tank 6 form a circulating loop for heating domestic hot water. This design enables the air conditioning host 5 to not only provide cold and hot water for the air conditioning system, but also provide hot water for the domestic hot water tank 6, thereby solving the technical problem that the air conditioning water circulation system cannot provide domestic hot water. Compared with the prior art, the advantages of the present application lie in that through simple valve switching, the integration of the air conditioning system and the domestic hot water system is realized, the energy utilization efficiency is improved, the floor area occupied by the equipment is reduced, and the demand of users for domestic hot water can be met.

[0039] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily mean 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.

[0040] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model. The ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model without departing from the principles and purposes of the utility model.

Claims

1. A hydraulic center with hot water function, comprising a shell (11), an energy storage water tank (2) arranged in the shell (11), a first return water interface (12) and a first water outlet interface (13) arranged on the side wall of the shell (11) for connecting air conditioner terminals, and a second return water interface (14) and a second water outlet interface (15) arranged on the side wall of the shell (11) for connecting an air conditioner host; the first return water interface (12) and the first water outlet interface (13) are respectively connected with the energy storage water tank (2) through a terminal return water pipeline (100) and a terminal water outlet pipeline (102); characterized in that: The shell (11) side wall is further provided with a water tank outlet interface (16) and a water tank backwater interface (17), the second backwater interface (14) and the water tank outlet interface (16) are communicated through a first pipeline (103), a three-way valve (31) is arranged in the first pipeline (103), and the three-way valve (31) also communicates the energy storage water tank (2); the water tank backwater interface (17) and the second outlet interface (15) are communicated through a second pipeline (104), a three-way connecting piece (32) is arranged in the second pipeline (104), and the three-way connecting piece (32) also communicates the energy storage water tank (2).

2. The hydraulic center with hot water function as claimed in claim 1, wherein: A first water pump (33) is arranged on the first pipeline (103) between the three-way valve (31) and the second backwater interface (14), or the second pipeline (104) between the three-way connecting piece (32) and the second outlet interface (15), or an external pipeline connecting the second backwater interface (14) and the second outlet interface (15); and a second water pump (34) is arranged in the terminal backwater pipeline (100) or the terminal outlet pipeline (102).

3. The hydraulic center with hot water function as claimed in claim 1, wherein: An exhaust valve (35) is arranged at the upper end of the energy storage water tank (2), and a sewage outlet is arranged at the lower end of the energy storage water tank (2), and a sewage plug (36) is arranged on the sewage outlet.

4. The hydraulic center with hot water function as claimed in claim 1, wherein: An expansion tank is connected to the energy storage water tank (2).

5. The hydraulic center with hot water function of claim 1, wherein: A pressure relief valve (37) is arranged on the energy storage water tank (2), and a temperature sensor (38) is inserted into a temperature sensing hole on the energy storage water tank (2).

6. The hydraulic center with hot water function of claim 1, wherein: A filter (39) is arranged on the terminal backwater pipeline (100) between the energy storage water tank (2) and the first backwater interface (12), and a filter (39) is arranged on the second pipeline (104) between the energy storage water tank (2) and the water tank backwater interface (17).

7. The hydraulic center with hot water function of claim 1, wherein: A water supplement pipeline is further arranged in the shell (11) and is communicated with the energy storage water tank (2), and a water supplement valve (30) is arranged on the water supplement pipeline.

8. The hydraulic center with hot water function of claim 1, wherein: The energy storage water tank (2) and the terminal outlet pipeline (102) are communicated through a differential pressure balance pipeline, and a differential pressure balance valve (301) is arranged on the differential pressure balance pipeline.

9. An air conditioning water circulation system characterized by: The system comprises an air conditioner terminal (4), an air conditioner host (5), a water power center (1) and a domestic hot water tank (6), the water power center (1) is the water power center with a domestic hot water function as claimed in any one of claims 1 to 8, the first backwater interface (12) of the water power center (1) is connected with the water outlet of the air conditioner terminal (4), and the first outlet interface (13) is connected with the water inlet of the air conditioner terminal (4); the second backwater interface (14) of the water power center (1) is connected with the water outlet of the air conditioner host (5), and the second outlet interface (15) is connected with the water inlet of the air conditioner host (5); the water tank backwater interface (17) of the water power center (1) is connected with the water outlet of the domestic hot water tank (6), and the water tank outlet interface (16) is connected with the water inlet of the domestic hot water tank (6); when the AC of the three-way valve (31) is connected, a circulating loop is formed between the air conditioner host (5) and the energy storage water tank (2) of the water power center (1); when the BC of the three-way valve (31) is connected, a circulating loop is formed between the air conditioner host (5) and the domestic hot water tank (6).

10. The air conditioning water circulation system of claim 9, wherein: The air conditioner terminal (4) is constructed as one or more of a fan coil, floor heating and a radiator; the air conditioner terminal (4) is constructed as a plurality, and the plurality of air conditioner terminals (4) are connected in parallel downstream of the first water outlet (13).

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