Air conditioner water circulation system and hydraulic center thereof

Abstract

The utility model relates to the field of air-conditioning systems, in particular to an air-conditioning water circulation system and a hydraulic center thereof. The hydraulic center comprises a shell, an energy storage water tank arranged in the shell, and a first water return connector, a first 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 both communicated with the energy storage water tank, a water pump is arranged on a pipeline of the energy storage water tank and the second water outlet connector, and a straight-through pipeline communicated with the first water outlet connector and the second water return connector is constructed in the shell. The scheme has the advantages that the structure is simplified, the energy transfer efficiency is improved, the system performance is improved, the occupied space is reduced, and installation and maintenance are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning system field especially relates to a kind of air conditioning water circulation system and its hydraulic center. BACKGROUND

[0002] Hydraulic center is a kind of integrated device, water pump, valve, filter, constant pressure water supply device, water pump control electrical control cabinet and other components are integrated in a box.It is widely used in the air conditioning water, cooling water, sanitary hot water circulation delivery of central air conditioning water system, and the delivery of other water medium.

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

[0004] However, this kind of hydraulic center has some problems in the design of double circulation loop.Firstly, the structure of double circulation loop is relatively complex, which increases the design difficulty and manufacturing cost of system.Secondly, since buffer water tank is used as intermediate medium, it may cause energy transfer efficiency to be reduced, which affects the performance of the whole system.In addition, the design of double circulation loop may also increase the occupied space of system, which is not conducive to compact installation.

[0005] On the other hand, the existing hydraulic center may face some challenges in operation and maintenance in actual application.For example, there may be air accumulation problem in the system, which affects the efficiency of water circulation;Water quality management is also an important problem, if there is no suitable filtering and sewage mechanism, it may cause system performance to be reduced and equipment life to be shortened.

[0006] In view of the above problems, the prior art needs to be improved. SUMMARY

[0007] In order to solve the above problems, the purpose of the present application is to provide a kind of hydraulic center and air conditioning water circulation system, with the advantages of structure simplification, energy transfer efficiency improvement, system performance improvement, occupied space reduction, easy installation and maintenance.

[0008] The present application provides a hydraulic center, and the technical scheme is as follows:

[0009] The hydraulic center comprises a shell, an energy storage water tank arranged in the shell, a first return water interface and a first water outlet interface arranged on the side wall of the shell for connecting the air conditioner terminal, and a second return water interface and a second water outlet interface arranged on the side wall of the shell for connecting the main machine; the first return water interface and the second water outlet interface are both in communication with the energy storage water tank, a water pump is arranged on the pipeline of the energy storage water tank and the second water outlet interface, and a straight-through pipeline is arranged in the shell to communicate the first water outlet interface and the second return water interface.

[0010] Further, the upper end of the energy storage water tank is provided with an exhaust valve, and the lower end is provided with a sewage outlet, and a sewage plug is arranged on the sewage outlet.

[0011] Further, the energy storage water tank is connected with an expansion tank.

[0012] Further, the energy storage water tank is provided with a pressure relief valve, and a temperature sensor is inserted into a temperature sensing hole on the energy storage water tank.

[0013] Further, the energy storage water tank is provided with a filter on the pipeline of the first return water interface.

[0014] Further, the shell is further provided with a water replenishment pipeline in communication with the energy storage water tank, and a water replenishment valve is arranged on the water replenishment pipeline.

[0015] Further, the energy storage water tank and the straight-through pipeline are in communication through a differential pressure balance pipeline, and a differential pressure balance valve is arranged on the differential pressure balance pipeline.

[0016] The second invention of the present application proposes an air conditioner water circulation system, comprising an air conditioner terminal, an air conditioner main machine and a hydraulic center, wherein the hydraulic center is the above-mentioned hydraulic center, the first return water interface of the hydraulic center is connected with the water outlet of the air conditioner terminal, and the first water outlet interface is connected with the water inlet of the air conditioner terminal; the second return water interface of the hydraulic center is connected with the water outlet of the air conditioner main machine, and the second water outlet interface is connected with the water inlet of the air conditioner main machine.

[0017] Further, the air conditioner terminal is constructed as one or more of a fan coil, a floor heating and a heating radiator.

[0018] Further, the air conditioner terminal is constructed as multiple, and the multiple air conditioner terminals are connected in parallel downstream of the first water outlet interface.

[0019] From the above, the water force center and the air conditioning water circulation system provided by the application, the water force center comprises a shell, an energy storage water tank arranged in the shell, a first return water interface, a first 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 both in communication with the energy storage water tank, a water pump is arranged on the pipeline of the energy storage water tank and the second water outlet interface, and a straight-through pipeline in communication with the first water outlet interface and the second return water interface is constructed in the shell. This design simplifies the system structure, realizes the direct connection between the air conditioning host and the terminal through the straight-through pipeline, improves the energy transmission efficiency, improves the system performance, reduces the occupied space, and is convenient for installation and maintenance. In addition, the arrangement of the energy storage water tank provides the function of heat storage and buffering, and further optimizes the operation effect of the system. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A schematic diagram of a water force center provided by the application.

[0021] Figure 2 A schematic diagram of an air conditioning water circulation system provided by the application. DETAILED DESCRIPTION

[0022] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0023] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship 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 a limitation of the present application.

[0024] 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 as "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.

[0025] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connect;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements. For ordinary skilled in the art, the above terms can be understood according to the specific meaning of the utility model.

[0026] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features directly contact, also can include the first and second features are not directly contact but contact through another feature between them. Moreover, the first feature is "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature. The first feature is "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature. Embodiment

[0027] As Figure 1 shown, the embodiment relates to the hydraulic center, including the shell 10, and the energy storage water tank 2 arranged in the shell 10, and the first return water interface 11 and the first water outlet interface 12 arranged on the side wall of the shell 10 for connecting air conditioner terminal, and the second return water interface 13 and the second water outlet interface 14 arranged on the side wall of the shell 10 for connecting host computer. The first return water interface 11 and the second water outlet interface 14 are connected with the energy storage water tank 2, and the straight-through pipeline 100 connecting the first water outlet interface 12 and the second return water interface 13 is built in the shell 10. Wherein, the pipeline of the energy storage water tank 2 and the second water outlet interface 14 or in the air conditioner host computer connected by the hydraulic center, or the other external pipeline of the circulating loop is provided with the water pump 15, and the water pump 15 can adopt multiple types, such as centrifugal pump, volumetric pump and the like, to ensure the continuous supply of water flow and pressure control. Further, the straight-through pipeline 100 can adopt pipes of different materials and diameters to adapt to different water flow requirements and system pressure. As a preferred embodiment, the straight-through pipeline 100 can adopt stainless steel material to improve corrosion resistance and service life.

[0028] Thus, the application realizes the centralized management and distribution of water flow by connecting the energy storage water tank 2 inside the shell 10 with multiple interfaces on the side wall of the shell 10. Specifically, when the water power center is connected to the air conditioning system, the air conditioning host, the water power center and the air conditioning terminal form a circulating loop. Since the straight-through pipeline 100 connects the first water outlet interface 12 and the second water return interface 13, the water flowing back on the host is directly connected to the terminal through the straight-through pipeline 100, and then flows into the host from the terminal, forming a single circulating loop. In this way, the scheme uses the straight-through pipeline 100 to provide a direct channel from the first water outlet interface 12 to the second water return interface 13, simplifying the water flow path and improving the efficiency and reliability of the system. The water pump 15 between the energy storage water tank 2 and the second water outlet interface 14 ensures the continuous supply of water flow and pressure control. These technical features work together to solve the problem of effective connection and functional coordination of the components inside the water power center, ensuring the normal operation of the water circulation system. Compared with the prior art, the technical scheme of the application simplifies the structure and optimizes the water flow path, improves the efficiency and reliability of the system, and reduces the complexity and cost of the system.

[0029] Further, the application also proposes that the upper end of the energy storage water tank 2 is provided with an exhaust valve 16, and the lower end is provided with a sewage outlet, and the sewage outlet is provided with a sewage plug 17. Specifically, the exhaust valve 16 is provided to exhaust the air in the water tank, preventing air accumulation from affecting the normal operation of the water tank. The sewage outlet is closed by the sewage plug 17, which facilitates regular cleaning of impurities and pollutants in the water tank, ensuring clean water and stable operation of the system. As a preferred embodiment, the exhaust valve 16 can be an automatic exhaust valve 16 that can automatically open the exhaust when air accumulates in the water tank, reducing manual intervention. The sewage plug 17 can be designed to be detachable, facilitating user cleaning operations as needed. In addition, the position of the sewage outlet can be set at the lowest point of the water tank to ensure that all impurities and pollutants can be smoothly discharged. Thus, through the setting of these technical features, the exhaust and sewage problems of the energy storage water tank 2 are effectively solved, improving the reliability and service life of the system. Compared with the prior art, the technical scheme of the application realizes effective management of the air and pollutants inside the energy storage water tank 2 through simple structural design, reduces the complexity and cost of system maintenance, and enhances the stability and service life of the system.

[0030] Further, the application also proposes that the energy storage water tank 2 is connected with an expansion tank 18. The expansion tank 18 plays a buffering role in the system, absorbs the water volume expansion caused by temperature rise, prevents the system pressure from being too high, and at the same time releases the stored water when the temperature decreases, keeping the system pressure stable. As a preferred embodiment, the expansion tank 18 can be connected with the energy storage water tank 2 through threaded connection or flange connection. Further, the expansion tank 18 can be provided with an air bag inside, which functions to isolate water and air, reduce direct contact between water and tank wall, and thus prolong the service life of the expansion tank 18. In addition, the volume of the expansion tank 18 can be selected according to the water quantity and temperature variation range of the system to ensure that within the maximum temperature variation range, the expansion tank 18 can effectively absorb and release water quantity. Specifically, the energy storage water tank 2 can effectively solve the problem of water volume change and pressure fluctuation caused by temperature change in the system by connecting the expansion tank 18. Thus, during the operation of the system, whether the temperature rises or falls, the expansion tank 18 can maintain the stability of the system pressure by absorbing or releasing water quantity, ensuring the safe operation and stability of the system. Compared with the prior art, by introducing the expansion tank 18, the application not only simplifies the structure of the system, but also improves the reliability and safety of the system, especially in the case of central air conditioning water system and other occasions that need to handle a large amount of water medium.

[0031] Further, the application also proposes that the energy storage water tank 2 is connected with an expansion tank 18. The expansion tank 18 plays a buffering role in the system, absorbs the water volume expansion caused by temperature rise, prevents the system pressure from being too high, and at the same time releases the stored water when the temperature decreases, keeping the system pressure stable. As a preferred embodiment, the expansion tank 18 can be connected with the energy storage water tank 2 through threaded connection or flange connection. Further, the expansion tank 18 can be provided with an air bag inside, which functions to isolate water and air, reduce direct contact between water and tank wall, and thus prolong the service life of the expansion tank 18. In addition, the volume of the expansion tank 18 can be selected according to the water quantity and temperature variation range of the system to ensure that within the maximum temperature variation range, the expansion tank 18 can effectively absorb and release water quantity. Specifically, the energy storage water tank 2 can effectively solve the problem of water volume change and pressure fluctuation caused by temperature change in the system by connecting the expansion tank 18. Thus, during the operation of the system, whether the temperature rises or falls, the expansion tank 18 can maintain the stability of the system pressure by absorbing or releasing water quantity, ensuring the safe operation and stability of the system. Compared with the prior art, by introducing the expansion tank 18, the application not only simplifies the structure of the system, but also improves the reliability and safety of the system, especially in the case of central air conditioning water system and other occasions that need to handle a large amount of water medium.

[0032] Further, the application also proposes that a filter 104 is arranged on the pipeline between the energy storage water tank 2 and the first water return interface 11. Specifically, the filter 104 can adopt various forms, such as a mechanical filter 104, an activated carbon filter 104, or a UV sterilization filter 104, etc. The mechanical filter 104 removes solid particles and impurities in water through physical barriers; the activated carbon filter 104 removes organic matter and odors in water through adsorption; and the UV sterilization filter 104 kills microorganisms in water through UV irradiation. As a preferred embodiment, the filter 104 can be integrated in the pipeline, facilitating installation and maintenance, while ensuring the continuity and stability of water flow. Thus, by arranging the filter 104 on the pipeline between the energy storage water tank 2 and the first water return interface 11, impurities and particulate matter in water can be effectively removed, ensuring clean water quality, preventing impurities from entering the energy storage water tank 2 and the first water return interface 11, protecting the normal operation of the system and prolonging the service life of the equipment. Compared with the prior art, the technical solution of the application realizes the function of water purification through simple structural design, improves the reliability and service life of the system, and reduces the maintenance cost.

[0033] Further, the housing 10 also has a water replenishment pipeline connected with the energy storage water tank 2, and a water replenishment valve 101 is arranged on the water replenishment pipeline. Specifically, the design of the water replenishment pipeline enables the energy storage water tank 2 to replenish water through the water replenishment valve 101, thereby maintaining the stability of water pressure during operation. The arrangement of the water replenishment valve 101 ensures that the energy storage water tank 2 can replenish water in time when needed, which is crucial to solve the pressure difference balance problem between the energy storage water tank 2 and the straight pipeline 100. As a preferred embodiment, the water replenishment valve 101 can adopt an automatic control mode, which automatically opens or closes according to the water level or pressure change in the energy storage water tank 2, to realize more accurate water pressure control. In addition, the water replenishment pipeline can also be provided with a filtering device to prevent impurities from entering the energy storage water tank 2 and affecting the normal operation of the system.

[0034] By the design of the water supplement pipeline and the water supplement valve 101, the application effectively solves the pressure difference balance problem between the energy storage water tank 2 and the straight-through pipeline 100. This design not only ensures that the energy storage water tank 2 can supplement water in time and maintain the stability of water pressure during operation, but also improves the operation efficiency and reliability of the system through automatic control. Compared with the prior art, the technical scheme of the application has obvious advantages in solving the pressure difference balance problem, and can better adapt to the actual operation requirements of the air conditioning water circulation system. Further, the application also proposes that the energy storage water tank 2 and the straight-through pipeline 100 are connected through the pressure difference balance pipeline 190, and the pressure difference balance valve 19 is arranged on the pressure difference balance pipeline 190. Specifically, the design of the pressure difference balance pipeline 190 is to solve the pressure difference balance problem between the energy storage water tank 2 and the straight-through pipeline 100. The arrangement of the pressure difference balance valve 19 makes the water pressure between the energy storage water tank 2 and the straight-through pipeline 100 stable during system operation. As a preferred embodiment, the pressure difference balance valve 19 can realize dynamic balance of pressure difference by automatically adjusting the valve opening, so as to ensure the stability of water pressure of the system. In addition, the pressure difference balance valve 19 can also be adjusted manually by manual intervention to achieve the expected pressure difference balance effect. Therefore, the combination of the pressure difference balance pipeline 190 and the pressure difference balance valve 19 not only improves the stability and efficiency of the system, but also enhances the operability and flexibility of the system. Briefly, the above technical scheme is summarized and described in detail. The technical scheme realizes the pressure difference balance between the energy storage water tank 2 and the straight-through pipeline 100 by arranging the pressure difference balance pipeline 190 and the pressure difference balance valve 19. This design ensures that the water pressure between the energy storage water tank 2 and the straight-through pipeline 100 can be stable during the operation of the hydraulic center, thereby improving the stability and efficiency of the system. Compared with the prior art, the technical scheme of the application effectively solves the pressure difference balance problem through simple structural design, reduces the complexity and cost of the system, and has obvious technical progress and practical value. Embodiment

[0035] As Figure 2As shown, the present embodiment also relates to an air conditioning water circulation system, which includes an air conditioning terminal 3, an air conditioning host 4 and a hydraulic center 1. The hydraulic center 1 is as described in embodiment 1, with the first return water interface 11 connected to the water outlet of the air conditioning terminal 3, and the first water outlet interface 12 connected to the water inlet of the air conditioning terminal 3; the second return water interface 13 of the hydraulic center 1 is connected to the water outlet of the air conditioning host 4, and the second water outlet interface 14 is connected to the water inlet of the air conditioning host 4. Specifically, the hydraulic center 1 integrates various functional components such as water pumps 15, valve components, filters 104, etc., forming an integrated box structure for efficient operation of the central air conditioning water system. The first return water interface 11 of the hydraulic center 1 is connected to the water outlet of the air conditioning terminal 3, and the first water outlet interface 12 is connected to the water inlet of the air conditioning terminal 3, realizing the water circulation connection between the air conditioning terminal 3 and the hydraulic center 1. At the same time, the second return water interface 13 of the hydraulic center 1 is connected to the water outlet of the air conditioning host 4, and the second water outlet interface 14 is connected to the water inlet of the air conditioning host 4, ensuring the water circulation connection between the air conditioning host 4 and the hydraulic center 1.

[0036] The present application improves the operation efficiency and integration of the system by integrating and optimizing each part of the water circulation system, solving the technical problems of integration and efficient operation of the air conditioning water circulation system. Compared with the prior art, the technical scheme of the present application has a simpler structure, lower cost, and can more effectively realize the integration and efficient operation of the air conditioning water circulation system.

[0037] The present application also proposes that the air conditioning terminal 3 is constructed as one or more of a fan coil, floor heating and radiator. The air conditioning terminal 3 can select one or more of a fan coil, floor heating and radiator, providing flexible terminal configuration options to adapt to different application scenarios. This design not only simplifies the installation and maintenance of the system, but also improves the operation efficiency and reliability of the system. Through the above technical scheme, the integration and functional expansion of the hydraulic center 1 in the air conditioning water circulation system are solved. Compared with the prior art, the technical scheme of the present application integrates the hydraulic center 1, simplifies the structure of the system, reduces the complexity and cost of the system, and at the same time improves the operation efficiency and reliability of the system. As a preferred embodiment, the air conditioning terminal 3 can also be constructed as multiple, with multiple air conditioning terminals 3 connected in parallel downstream of the first water outlet interface 12.

[0038] Thus, the present application simplifies the structure of the air conditioning water circulation system by integrating the hydraulic center 1, improving the operation efficiency of the system. Compared with the prior art, the technical scheme of the present application reduces the complexity and cost of the system through the design of a single circulation loop, while ensuring smooth water circulation and stable operation of the system.

[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, comprising a shell (10), an energy storage water tank (2) arranged inside the shell (10), a first return water interface (11) and a first water outlet interface (12) arranged on the side wall of the shell (10) for connecting the air conditioner terminal, and a second return water interface (13) and a second water outlet interface (14) arranged on the side wall of the shell (10) for connecting the air conditioner host; characterized in that: The first water return interface (11) and the second water outlet interface (14) are communicated with the energy storage water tank (2), and the straight-through pipeline (100) communicating the first water outlet interface (12) and the second water return interface (13) is constructed in the shell (10).

2. The hydraulic center of claim 1, wherein: The upper end of the energy storage water tank (2) is provided with an exhaust valve (16), and the lower end is provided with a sewage outlet, and the sewage outlet is provided with a sewage plug (17).

3. The hydraulic center of claim 1, wherein: The energy storage water tank (2) is connected with an expansion tank (18).

4. The hydraulic center of claim 1, wherein: The energy storage water tank (2) is provided with a pressure relief valve (102), and a temperature sensor (103) is inserted into the temperature sensing hole of the energy storage water tank (2).

5. The hydraulic center of claim 1, wherein: The pipeline of the energy storage water tank (2) and the first water return interface (11) is provided with a filter (104).

6. The hydraulic center of claim 1, wherein: The shell (10) is further provided with a water supplement pipeline communicated with the energy storage water tank (2), and the water supplement pipeline is provided with a water supplement valve (101).

7. The hydraulic center of claim 1, wherein: The energy storage water tank (2) and the straight-through pipeline (100) are communicated through a differential pressure balance pipeline (190), and the differential pressure balance pipeline (190) is provided with a differential pressure balance valve (19).

8. An air conditioning water circulation system comprising an air conditioning terminal (3), an air conditioning main unit (4) and a hydraulic center (1), characterized by: The water force center is the water force center in any one of claims 1-7, the first water return interface (11) of the water force center is connected with the water outlet of the air conditioner terminal (3), and the first water outlet interface (12) is connected with the water inlet of the air conditioner terminal (3); the second water return interface (13) of the water force center is connected with the water outlet of the air conditioner host (4), and the second water outlet interface (14) is connected with the water inlet of the air conditioner host (4).

9. The air conditioning water circulation system of claim 8, wherein: The air conditioner terminal (3) is constructed as one or more of a fan coil, floor heating and heating radiators.

10. The air conditioning water circulation system of claim 8, wherein: The air conditioner terminal (3) is constructed as multiple, and multiple air conditioner terminals (3) are connected in parallel downstream of the first water outlet interface (12).

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