Wall-mounted air energy water tank and air energy water heater

Abstract

The utility model discloses an air energy water heater manufacturing technical field, concretely relates to a kind of wall-mounted air energy water tank and air energy water heater, its beneficial effect is in: the utility model discloses wall-mounted air energy water tank includes tank, inner bag component and refrigerant pipeline, the inner bag component includes first inner bag and second inner bag;The first end of refrigerant pipeline is connected with the first refrigerant interface, and the second end of refrigerant pipeline is connected with the second refrigerant interface;The refrigerant pipeline is provided with the first pipeline and the second pipeline connected with each other, the first pipeline is arranged in the first inner bag, the second pipeline is provided with second inner bag inside, to respectively make the liquid in first inner bag and second inner bag heating;The utility model realizes cold and hot water partition storage and independent heating, effectively reduces cold and hot water mixing, improves heat stratification effect, with the advantages of improving heat exchange efficiency, reducing heat energy loss, prolonging equipment service life.

Description

Technical Field

[0001] This utility model relates to the field of air source water heater technology, specifically to a wall-mounted air source water tank and an air source water heater. Background Technology

[0002] Existing air source heat pump water heaters generally use a single-tank structure, which has significant technical limitations. Because there is only one tank, hot and cold water mix easily within the same cavity, resulting in poor heat stratification. During the heating process, a large amount of cold water needs to be continuously heated, leading to significant heat loss and low heating efficiency.

[0003] Meanwhile, the single-tank structure can lead to insufficient hot water supply and significant temperature fluctuations during peak water usage periods, impacting the user experience. Furthermore, this structure limits the efficiency of the heat pump unit, causing frequent start-ups and shutdowns, increasing energy consumption and shortening the equipment's lifespan. The traditional single-tank design has become a major bottleneck in improving the overall energy efficiency of air source heat pump water heaters, failing to meet current market demands for high efficiency, energy saving, and stable heating. Therefore, there is an urgent need for a new type of water tank structure to improve the shortcomings of existing technologies. Utility Model Content

[0004] In view of the above problems, this utility model provides a wall-mounted air source water tank and air source water heater, which solves the problems of existing water heaters having only one inner tank with a large water tank space occupation, cold and hot water easily mixing in the same cavity, resulting in poor heat stratification, and the need to continuously heat a large amount of cold water during the heating process, causing serious heat loss and low heating efficiency.

[0005] In a first aspect, this utility model provides a wall-mounted air-source heat pump water tank, comprising at least: The enclosure is equipped with a first refrigerant interface, a second refrigerant interface, a water inlet interface, and a water outlet interface; An inner liner assembly is disposed inside the housing. The inner liner assembly includes a first inner liner and a second inner liner. The first inner liner is connected to the water outlet, and the second inner liner is connected to the water inlet. At least one connection channel is provided between the first inner liner and the second inner liner. The refrigerant pipeline has a first end connected to the first refrigerant interface and a second end connected to the second refrigerant interface. The refrigerant pipeline is provided with a first pipeline and a second pipeline that are connected to each other. The first pipeline is located inside the first inner liner, and the second pipeline is located inside the second inner liner, so as to heat the liquids in the first inner liner and the second inner liner respectively.

[0006] In some alternative configurations, the first inner liner is positioned above the second inner liner.

[0007] In some alternative configurations, the first inner liner has a first opening, the second inner liner has a second opening, the refrigerant pipe is wound around the first inner liner along the first opening to form a first pipe, and the refrigerant pipe is wound around the second inner liner along the second opening to form a second pipe.

[0008] In some alternative configurations, both the first and second conduits are formed in a U-shape.

[0009] In some alternative configurations, the first and second pipes are wound counterclockwise, forming multiple sequentially connected annular pipes within the first and second inner liner, with the annular pipes gradually decreasing in size along the winding trajectory.

[0010] In some alternative configurations, both the first and second conduits are spirally wound.

[0011] In some alternative configurations, the first opening is provided with a first sealing flange, which seals the first inner liner; the second opening is provided with a second sealing flange, which seals the second inner liner.

[0012] In some alternative configurations, a drain outlet is also provided, which is connected to the second inner liner.

[0013] In some alternative embodiments, a temperature probe for detecting the temperature of the liquid inside the first inner liner and / or the second inner liner is also provided inside the first inner liner and / or the second inner liner.

[0014] Secondly, this utility model provides an air source water heater, comprising: Air source heat pump unit, The wall-mounted air source heat pump water tank mentioned above is connected to the air source heat pump unit through a first refrigerant interface and a second refrigerant interface to heat the liquid in the wall-mounted air source heat pump water tank.

[0015] This utility model embodiment provides a wall-mounted air source water tank and an air source water heater, the advantages of which are: 1. The wall-mounted air-source heat pump water tank of this utility model includes a tank body, an inner tank assembly, and refrigerant piping. The tank body is provided with a first refrigerant interface, a second refrigerant interface, a water inlet interface, and a water outlet interface. The inner tank assembly is disposed inside the tank body and includes a first inner tank and a second inner tank. The first inner tank is connected to the water outlet interface, and the second inner tank is connected to the water inlet interface. At least one connecting channel is provided between the first inner tank and the second inner tank. The first end of the refrigerant piping is connected to the first refrigerant interface, and the second end of the refrigerant piping is connected to the second refrigerant interface. The refrigerant piping is provided with a first pipe and a second pipe that are interconnected. The first pipe is disposed inside the first inner tank, and the second pipe is disposed inside the second inner tank, so as to heat the liquids in the first inner tank and the second inner tank respectively. Through the above solution, this utility model realizes the separate storage and independent heating of hot and cold water, effectively reduces the mixing of hot and cold water, improves the heat stratification effect, and has the advantages of improving heat exchange efficiency, reducing heat loss, and extending the service life of equipment.

[0016] 2. This utility model of an air source heat pump water heater features two inner tanks within the water tank. The first inner tank is used for water intake and initial heating, while the second inner tank is used for water dispensing after heating to a set temperature. The flow between the first and second inner tanks is restricted by a connecting channel. This design allows for a smaller water tank, resulting in higher heating efficiency and avoiding the repeated heating issues of large water tanks. Furthermore, the smaller inner tanks enable the air source heat pump water heater to rapidly heat the water in the first inner tank, achieving instant hot water. In addition, the water tank of this air source heat pump water heater is only 1 / 3 or smaller than a traditional water tank, greatly reducing installation difficulty and space requirements. Simultaneously, it avoids the bacterial growth that can occur when water is stored in large storage tanks for extended periods, ensuring water safety.

[0017] The above description is merely an overview of the technical solutions of the present utility model embodiments. In order to better understand the technical means of the present utility model embodiments and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present utility model embodiments more obvious and understandable, specific embodiments of the present utility model are described below. Attached Figure Description

[0018] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A three-dimensional schematic diagram of the wall-mounted air-source water tank provided by this utility model is shown; Figure 2 This shows a first cross-sectional schematic diagram of the wall-mounted air-source water tank provided by this utility model; Figure 3This shows a second cross-sectional schematic diagram of the wall-mounted air-source water tank provided by this utility model; Figure 4 A schematic diagram of the structure of the air source water heater provided by this utility model is shown.

[0019] in, 10. Wall-mounted air source heat pump water tank; 11. Tank body; 111. First refrigerant interface; 112. Second refrigerant interface; 113. Water inlet interface; 114. Water outlet interface; 115. Sewage discharge interface; 121. First inner liner; 122. Second inner liner; 123. Connecting channel; 13. Refrigerant pipe; 131. First pipe; 132. Second pipe; 14. Temperature probe; 20. Air source heat pump unit. Detailed Implementation

[0020] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein.

[0021] Example 1: Figures 1-2 This paper presents a first embodiment of a wall-mounted air source water tank 10 and an air source water heater to address problems existing in the prior art. Specifically, it addresses the severe mixing of hot and cold water in a single-tank structure by dividing the water storage space into independent areas. Two independent inner tanks are connected to an outlet and an inlet respectively, physically isolating the cold and hot water. To solve the pressure balance problem between the independent inner tanks, a connecting channel 123 is provided between them, allowing liquid flow but limiting heat exchange. For efficient heating, refrigerant pipes are designed to pass through both inner tanks, enabling the heat pump system to simultaneously provide differentiated heating to different temperature zones.

[0022] Specifically, the wall-mounted air source heat pump water tank 10 of this utility model includes a tank body 11, an inner liner assembly, and a refrigerant pipeline. The tank body 11 is provided with a first refrigerant interface 111, a second refrigerant interface 112, a water inlet interface 113, and a water outlet interface 114. The inner liner assembly is disposed inside the tank body 11, and the inner liner assembly includes a first inner liner 121 and a second inner liner 122. The first inner liner 121 is connected to the water outlet interface 114, and the second inner liner 122 is connected to the water inlet interface 113. At least one connecting channel 123 is provided between the first inner liner 121 and the second inner liner 122. The first end of the refrigerant pipeline is connected to the first refrigerant interface 111, and the second end of the refrigerant pipeline is connected to the second refrigerant interface 112. The refrigerant pipeline is provided with a first pipeline and a second pipeline that are interconnected. The first pipeline is disposed inside the first inner liner 121, and the second pipeline is disposed inside the second inner liner 122, so as to heat the liquids in the first inner liner 121 and the second inner liner 122, respectively.

[0023] In the above scheme, the housing 11 refers to the outer shell that carries the inner tank assembly and the pipeline connection. Specifically, it can be implemented using a metal welded structure. Its refrigerant interface is used to connect to the heat pump host circulation system, and the inlet and outlet water interfaces 114 correspond to the cold water input and hot water output of the water supply system, respectively. In this utility model, the inlet water interface 113 can be located anywhere on the surface of the housing. The inlet water interface can be directly connected to the second inner tank or connected to the second inner tank through a sealed pipeline for inputting cold water; all of the above settings are within the protection scope of this utility model. The outlet water interface 114 can be located anywhere on the surface of the housing. The outlet water interface can be directly connected to the first inner tank or connected to the first inner tank through a sealed pipeline for outputting hot water; all of the above settings are within the protection scope of this utility model. The inner tank assembly refers to the double-layer water storage structure located inside the housing 11. The first inner tank 121 is directly connected to the outlet water interface 114 for storing high-temperature water, and the second inner tank 122 is connected to the inlet water interface 113 for receiving low-temperature water. The two are connected through the connection channel 123 to achieve pressure balance and limited heat exchange.

[0024] The connecting channel 123 refers to the fluid passage that runs through the two inner tanks. Specifically, it can be achieved by using a tubular structure with a diameter smaller than the height of the inner tank, thereby reducing the mixing rate of hot and cold water by limiting the flow cross-sectional area.

[0025] The refrigerant piping refers to the heat exchange structure that runs through the two inner tanks. The first piping is arranged in the lower part of the first inner tank 121 in the form of a coil, and the second piping is distributed in the middle part of the second inner tank 122 in a spiral structure. The differentiated arrangement is adapted to the heat exchange requirements of different temperature ranges.

[0026] Furthermore, it should be noted that the wall-mounted air-source water tank of this utility model can be suspended and fixed to the wall, such as... Figures 1-2As shown, the wall-mounted air source heat pump water tank can be horizontally fixed to the upper part of the wall, which facilitates space layout and improves space utilization. Furthermore, the wall-mounted air source heat pump water tank of this invention can also be vertically fixed to the upper part of the wall, in conjunction with… Figure 2 The wall-mounted air source heat pump water tank is perpendicular to the wall, which can more fully improve the energy utilization rate of air source heat pumps.

[0027] Specifically, cold water enters the second inner tank 122 through the inlet 113 and is initially heated by the refrigerant in the second pipeline. The heated water slowly rises to the first inner tank 121 through the connecting channel 123, where it undergoes secondary heating before being output from the outlet 114. The two inner tanks form a stepped temperature distribution through the connecting channel 123, with the first inner tank 121 maintaining a higher water temperature and the second inner tank 122 responsible for preheating the cold water. The refrigerant pipeline forms an independent heat exchange loop within the two inner tanks, and the refrigerant output from the heat pump unit flows sequentially through the second and first pipelines, achieving graded utilization of heat.

[0028] Compared to existing technologies, traditional single-tank structures require repeated heating of the entire tank of water due to the mixing of hot and cold water. This invention, however, physically separates the water storage space, storing heated water in independent areas to avoid mixing. The dual-tank structure, combined with connecting channels 123, maintains system pressure balance and controls the heat exchange rate by limiting channel size, reducing heat loss by approximately 30% compared to a single-tank structure. The zoned arrangement of the refrigerant piping allows the heat pump system to adjust the heat exchange intensity according to water temperature differences, improving overall energy efficiency.

[0029] Through the above technical solution, this utility model effectively reduces heat loss caused by mixing hot and cold water and shortens the heating cycle. The dual-tank structure allows the heat pump unit to perform precise heating for different temperature zones, avoiding inefficient full-volume heating operations. The connection channel 123 ensures stable system pressure and maintains thermal stratification through flow rate control, enabling a continuous output of stable hot water even in centralized water use scenarios.

[0030] Example 2: Based on Embodiment 1, this embodiment provides a second embodiment of a wall-mounted air source water tank 10 to further describe the tank body 11, inner liner assembly, and refrigerant piping in a wall-mounted air source water tank 10.

[0031] In some alternative embodiments, the present invention further proposes that the first inner liner 121 is located above the second inner liner 122.

[0032] In this embodiment, the first inner liner 121 refers to a container for storing heated liquid, which is connected to the second inner liner 122 through a connecting channel 123. Specifically, it can be achieved by welding or flange connection. This structure can take advantage of the natural upward trend of hot liquid to reduce the mixing of hot and cold liquid.

[0033] The second inner liner 122 is a container for receiving unheated liquid. It is connected to an external water source through a water inlet 113 and can be made of stainless steel. This structure can preheat the incoming liquid through a refrigerant pipeline.

[0034] Specifically, the first inner liner 121 is positioned above the second inner liner 122, with the first and second refrigerant pipes embedded within each liner. When the refrigerant flows through the pipes, the liquid in the second inner liner 122 is initially heated, and then enters the first inner liner 121 through the connecting channel 123 for further heating. Because the first inner liner 121 is located at a higher position, the heated liquid, due to its lower density, naturally accumulates at the top, while the cooler liquid sinks to the second inner liner 122, forming thermal stratification. This arrangement reduces direct mixing of hot and cold liquids, making the heating process more efficient.

[0035] Compared with the prior art, the traditional single-tank structure causes unstable thermal stratification due to the coexistence of hot and cold water in the same cavity. However, this solution uses a double-tank structure with upper and lower sections to utilize the natural convection characteristics of the liquid after it is heated, so that the high-temperature liquid continuously accumulates upward and the low-temperature liquid is replenished downward, thereby maintaining a clearer thermal stratification boundary.

[0036] Through the above technical solution, this utility model effectively improves the heat stratification effect, reduces heat energy loss during the heating process, ensures stable outlet water temperature, avoids temperature fluctuations caused by mixing hot and cold water, extends the continuous operation time of the heat pump unit, and reduces energy consumption caused by frequent start-stop.

[0037] In some alternative embodiments, the first inner liner 121 is provided with a first opening, the second inner liner 122 is provided with a second opening, the refrigerant pipe is wound along the first opening in the first inner liner 121 to form a first pipe, and the refrigerant pipe is wound along the second opening in the second inner liner 122 to form a second pipe.

[0038] In this embodiment, the first opening refers to a through-hole structure provided on the surface of the first inner tank 121, which can be specifically implemented by circular or rectangular holes, and is used to guide the refrigerant pipeline into the inner part of the inner tank for winding. The second opening refers to a through-hole structure provided on the surface of the second inner tank 122, which can be specifically implemented by a layout symmetric to the first opening to ensure the balanced distribution of the refrigerant pipeline in the double inner tank. The winding formation means that the refrigerant pipeline is continuously bent and formed inside the inner tank along a specific path, which can be specifically implemented by mechanical bending or die forming processes, so that the pipeline makes full contact with the inner space of the inner tank.

[0039] Specifically, after the refrigerant pipeline enters the first inner tank 121 from the first opening, it continuously bends along the inner wall of the inner tank along a preset trajectory to form the first pipeline, and then enters the second inner tank 122 through the second opening and repeats the same operation to form the second pipeline. Through the positioning of the two openings, the distribution of the refrigerant pipeline in the double inner tank is precisely controlled. For example, the first pipeline can be wound in layers along the height direction of the inner tank, and the second pipeline can be wound in a spiral along the circumferential direction of the inner tank. This layout enables multi-dimensional heat exchange between the refrigerant and the water body in the inner tank, while avoiding displacement or mutual interference of the pipelines inside the inner tank.

[0040] Compared with the prior art, the traditional single-inner-tank water tank is heated only by a single refrigerant pipeline, and the distribution density of the pipeline in the inner tank is limited, resulting in insufficient heat exchange efficiency. In this solution, the refrigerant pipeline is guided by two openings to wind in two independent inner tanks respectively, so that the area covered by the pipeline is expanded to the complete space of the double inner tanks, and at the same time, the dense pipeline structure formed by winding significantly increases the contact area between the refrigerant and the water.

[0041] Through the above technical solutions, the present utility model realizes the independent and optimized layout of the refrigerant pipeline in the double inner tanks, effectively improves the heat exchange efficiency per unit time, and at the same time avoids the local water temperature difference caused by uneven pipeline distribution. The pipeline structure formed by winding reduces the flow resistance of the refrigerant, further reducing the energy consumption of the heat pump host.

[0042] In some optional embodiments, see Figure 2 , both the first pipeline and the second pipeline are formed by winding in a zigzag shape.

[0043] In this embodiment, the formation by winding in a zigzag shape means that the refrigerant pipeline is arranged in multiple concentric circular paths, and each layer is transitioned by a connecting section to form a closed loop structure, which can be specifically implemented by winding a continuously bent metal pipe layer by layer along the inner wall of the inner tank, and by increasing the contact area between the refrigerant and the liquid inside the inner tank, promoting uniform heat transfer. Among them, the gradual decrease of the annular pipeline along the winding trajectory means that the diameter of the circular path of the refrigerant pipeline gradually decreases layer by layer during the winding process, which can be specifically realized by controlling the dimensional gradient change of the winding die, so as to form a progressive heat exchange process from the outside to the inside when the refrigerant flows.

[0044] Specifically, after entering through the first refrigerant inlet 111, the refrigerant flows in a U-shaped path within the first inner liner 121, completing multiple loops. It then enters the second inner liner 122 through the connecting channel 123, where it continues to circulate within the same U-shaped pipe system, finally exiting through the second refrigerant inlet 112. During this process, the U-shaped structure extends the refrigerant flow path, and each annular pipe layer maintains full contact with the liquid in the inner liner, allowing heat to be continuously conducted to the liquid through the pipe walls. The gradually decreasing diameter of the annular pipes maintains a stable flow velocity for the refrigerant, preventing turbulence caused by sudden changes in pipe cross-sectional area.

[0045] Compared with existing technologies, traditional spiral pipes only achieve a unidirectional spiral structure, resulting in a relatively short refrigerant flow path and limited heat exchange area. In contrast, the multi-layered concentric loops formed by the zigzag winding significantly increase the effective heat exchange area per unit space. Furthermore, in existing technologies, spiral pipes with uniform diameters tend to form flow dead zones at the far end, while the gradually tapering annular pipes, through their progressively narrowing path design, can maintain pressure stability of the refrigerant throughout its flow.

[0046] Through the above technical solution, this utility model effectively improves the heat exchange efficiency between the refrigerant pipeline and the liquid in the inner tank, making the liquid inside the inner tank more evenly heated and reducing energy loss caused by local temperature differences. The dense arrangement of the U-shaped structure makes full use of the internal space of the inner tank, achieving higher heat exchange efficiency with the same volume, thereby shortening the heating cycle and reducing the operating time of the heat pump unit.

[0047] In some alternative embodiments, the first pipe and the second pipe are wound counterclockwise, forming a plurality of sequentially connected annular pipes within the first inner liner 121 and the second inner liner 122, and the annular pipes gradually decrease in size along the winding trajectory.

[0048] In this embodiment, counterclockwise winding means that the winding direction of the refrigerant pipe is opposite to the conventional clockwise direction. Specifically, it can be achieved by mold-assisted forming or mechanical bending process. The refrigerant flow path can be optimized by adjusting the winding direction.

[0049] Among them, the ring pipeline refers to the closed or semi-closed ring structure formed by the continuous bending of the refrigerant pipeline. Specifically, it can be achieved by segmented welding or integral molding process. The contact area with the liquid can be increased by connecting multiple rings.

[0050] The gradual reduction of the winding trajectory refers to the gradual reduction of the diameter or spacing of the ring-shaped pipeline as the winding process progresses. This can be achieved through gradient molds or variable diameter winding equipment. By reducing the ring diameter, the distribution density of the pipeline in a limited space can be increased.

[0051] Specifically, after entering through the first refrigerant inlet 111, the refrigerant piping is wound counterclockwise within the first inner liner 121 to form multiple ring-shaped pipes. Adjacent ring-shaped pipes are connected in series via connecting sections. As the winding trajectory progresses, the diameter of the ring-shaped pipes gradually decreases, creating a gradient arrangement of pipes in the vertical direction. When the refrigerant flows through the gradually narrowing ring-shaped pipes, the flow velocity changes, promoting heat exchange between the refrigerant and liquids at different depths. Within the second inner liner 122, the second piping uses the same winding method, creating a symmetrical heating structure for the refrigerant in both the upper and lower inner liners.

[0052] Compared with existing technologies, the refrigerant piping in traditional single-tank water tanks typically uses unidirectional winding or equal-diameter arrangement, resulting in a fixed refrigerant flow path and limited heat exchange efficiency. This solution, through counterclockwise winding combined with a gradually narrowing annular piping structure, breaks the conventional flow pattern and forms a dynamically changing heat exchange path. At the same time, the gradually narrowing annular arrangement can adapt to the liquid temperature differences in different areas of the inner tank.

[0053] Through the above technical solution, this utility model can enhance the uniformity of contact between the refrigerant pipeline and the liquid, reduce local overheating or heat exchange blind spots, and improve heating efficiency. The gradual reduction of the diameter of the annular pipeline can adapt to the temperature stratification characteristics inside the inner tank, shorten the heat exchange time in high-temperature areas, and extend the contact time in low-temperature areas, thereby optimizing the overall heat exchange process.

[0054] In some alternative implementations, see [link to implementation details]. Figure 3 Both the first and second pipes are spirally wound.

[0055] In this embodiment, the spiral shape forming refers to the refrigerant pipeline forming a spiral structure with a central axis through continuous bending inside the corresponding inner tank. Specifically, this can be achieved by bending the metal pipe along a preset spiral trajectory and fixing it to the inner tank wall. This structure enhances heat exchange efficiency by extending the refrigerant flow path and increasing the contact area with water.

[0056] Specifically, the refrigerant pipe enters through the first refrigerant inlet 111, extends in a spiral shape inside the first inner tank 121, then passes through the connecting channel 123 into the second inner tank 122 and continues to extend in a spiral shape, finally flowing out from the second refrigerant inlet 112. The spiral winding method ensures that the refrigerant releases heat evenly during flow, while the centrifugal force generated by the spiral trajectory promotes water flow turbulence, reducing the temperature difference between different areas of the inner tank. In the first inner tank 121 and the second inner tank 122, the spiral pipes are arranged in layers along the height of the inner tank to avoid localized overheating or heating blind spots.

[0057] Compared with existing technologies, traditional single-tank water tanks typically use straight pipes or simple loop pipes, resulting in short refrigerant paths and limited heat exchange areas, leading to low heating efficiency and unstable water temperature stratification. The spiral winding method, through geometric optimization, significantly increases the contact area between the refrigerant and water within the same space, while also improving heat transfer uniformity through flow disturbance.

[0058] Through the above technical solution, this utility model can accelerate the transfer of heat from the refrigerant to the water, reduce energy loss during the heating process, and simultaneously reduce the probability of hot and cold water mixing inside the inner tank, ensuring stable outlet water temperature. The spiral pipeline structure also simplifies the manufacturing process, avoids complex bending operations, and improves production feasibility.

[0059] In some alternative embodiments, the first opening is provided with a first sealing flange and the first inner liner 121 is sealed by the first sealing flange, and the second opening is provided with a second sealing flange and the second inner liner 122 is sealed by the second sealing flange.

[0060] In this embodiment, the first sealing flange refers to the sealing component covering the first opening. Specifically, it can be implemented by combining a flange and a rubber gasket. The flange is pressed against the edge of the opening by bolts, and the rubber gasket fills the gap to form a seal. The second sealing flange refers to the sealing component covering the second opening. Specifically, it can be implemented with the same structure as the first sealing flange. The opening is locked by the cooperation of the flange and the sealing ring to prevent leakage of liquid or refrigerant from the inner tank.

[0061] Specifically, the refrigerant pipeline passes through the first opening into the first inner liner 121 to form the first pipeline, and simultaneously passes through the second opening into the second inner liner 122 to form the second pipeline. A first sealing flange is installed at the first opening, and its flange is fixed to the edge of the opening of the first inner liner 121 by welding or bolting. A rubber gasket is compressed between the flange and the opening to form a seal at the refrigerant pipeline entry point. A second sealing flange is fixed to the second opening in the same manner to ensure the sealing of the second inner liner 122. Therefore, refrigerant leakage or liquid seepage into the pipeline will not occur due to seal failure at the opening when the refrigerant pipeline passes through the inner liner.

[0062] Compared with existing technologies, traditional single-tank water tanks typically only seal the opening through simple welding or gluing, which can easily lead to seal failure due to thermal expansion and contraction or vibration after long-term use. This solution uses a double-layer sealing structure, adding elastic sealing material between the flange and the opening to compensate for deformation caused by temperature changes. At the same time, the bolt tightening method facilitates inspection and maintenance, significantly improving the reliability of the seal.

[0063] Through the above technical solution, this utility model solves the problem of refrigerant leakage caused by poor sealing when the refrigerant pipeline enters the inner tank, avoids the decrease in heating efficiency caused by refrigerant loss, and prevents external impurities from entering the inner tank through the opening and contaminating the water, thus extending the service life of the water tank.

[0064] In some alternative implementations, a drain port 115 is also provided, which is connected to the second inner liner 122.

[0065] In this embodiment, the drain port 115 refers to a structural component used to drain deposited impurities from inside the water tank. Specifically, it can be implemented using a pipe with a valve. By controlling the opening and closing of the valve, the sediment or scale accumulated at the bottom of the inner tank can be cleaned periodically. The second inner tank 122 refers to an independent cavity connected to the water inlet port 113. It can be made of stainless steel or enamel material and is used to hold cold water to be heated. Due to the lower water flow velocity at the bottom, impurities are more likely to accumulate there. The drain port 115 can specifically solve the problem of impurity accumulation in this area.

[0066] Specifically, after the second inner tank 122 receives cold water through the water inlet 113, particles or scale carried in the water may gradually deposit at the bottom due to gravity. The drain port 115 is connected to the bottom of the second inner tank 122 through a pipe. When cleaning is required, the operator can open the valve of the drain port 115 to use the water flow to discharge the sediment, preventing impurities from accumulating for a long time and causing corrosion of the inner tank or a decrease in heat transfer efficiency. This design allows for cleaning without disassembling the internal structure of the water tank, making it convenient to operate and with low maintenance costs.

[0067] Compared with existing technologies, traditional single-tank water tanks lack an independent drainage structure. Cleaning requires emptying the entire inner tank and disassembling components, which is complex and makes it difficult to thoroughly remove bottom sediment. This solution, by directionally connecting the drainage interface 115 of the second inner tank 122, enables precise drainage targeting the characteristics of impurity deposition in the cold water area, while reducing the impact on hot water supply during maintenance.

[0068] Through the above technical solution, this utility model can effectively extend the service life of the inner tank, reduce the risk of pipe blockage caused by impurity accumulation, and reduce system downtime caused by regular maintenance, thereby improving the overall operational stability of the water heater.

[0069] In some alternative embodiments, a temperature probe 14 for detecting the temperature of the liquid inside the first inner liner 121 and / or the second inner liner 122 is also provided inside the first inner liner 121 and / or the second inner liner 122.

[0070] In this embodiment, the temperature probe 14 refers to a sensor installed inside the inner tank for real-time monitoring of the liquid temperature. Specifically, it can be implemented using a thermistor or thermocouple, transmitting the temperature signal to the external control system via wires. This feature provides accurate feedback for the operation of the heat pump unit by directly measuring the actual temperature of the liquid in the inner tank.

[0071] Specifically, temperature probe 14 is fixed to the top of the first inner tank 121 or the bottom of the second inner tank 122, with its sensing end immersed in the liquid. When the refrigerant pipeline heats the water in the first inner tank 121 and the second inner tank 122, temperature probe 14 continuously collects temperature data from different areas of each inner tank. The control system dynamically adjusts the refrigerant flow rate based on the temperature data; for example, it stops heating the first inner tank 121 when the water temperature reaches a set value and instead focuses on heating the second inner tank 122.

[0072] In some specific embodiments, the temperature probe 14 can be installed in the mounting hole on the side wall of the inner tank and waterproofed by a sealing ring. Furthermore, the first inner tank 121 and the second inner tank 122 can each be equipped with two temperature probes 14, respectively positioned near the inlet and outlet, to monitor the temperature gradient.

[0073] Compared with existing technologies, traditional single-tank water tanks rely solely on external water temperature sensors for coarse control, failing to detect temperature differences between different areas inside the tank. This solution, by directly installing a temperature probe 14 inside the tank, accurately identifies the stratification of hot and cold water, avoiding overheating or underheating due to delayed temperature detection.

[0074] Through the above technical solution, this utility model achieves precise monitoring of the liquid temperature inside the double inner tank structure, effectively preventing energy waste caused by local overheating, while ensuring that the outlet water temperature is stable within the set range, thus solving the problem of water supply temperature fluctuation caused by inaccurate temperature control in traditional water tanks.

[0075] Example 3: Based on Example 1 or Example 2, see Figure 4This utility model proposes an embodiment of an air source water heater, including an air source main unit 20 and a wall-mounted air source water tank 10 as described in Embodiment 1 or Embodiment 2. The wall-mounted air source water tank 10 is connected to the air source main unit 20 through a first refrigerant interface 111 and a second refrigerant interface 112 to heat the liquid in the water tank. The wall-mounted air source heat pump water tank 10 includes at least a tank body 11, an inner tank assembly, and refrigerant piping. The tank body 11 is provided with a first refrigerant interface 111, a second refrigerant interface 112, a water inlet interface 113, and a water outlet interface 114. The inner tank assembly is disposed inside the tank body 11 and includes a first inner tank 121 and a second inner tank 122. The first inner tank 121 is connected to the water outlet interface 114, and the second inner tank 122 is connected to the water inlet interface 113. At least one connecting channel 123 is provided between the two. The first end of the refrigerant piping is connected to the first refrigerant interface 111, and the second end is connected to the second refrigerant interface 112. The refrigerant piping includes a first pipe and a second pipe that are connected to each other. The first pipe is disposed inside the first inner tank 121, and the second pipe is disposed inside the second inner tank 122 to heat the liquid in the two inner tanks respectively.

[0076] In this embodiment, the air source heat pump unit 20 refers to a device that transfers ambient heat energy to refrigerant through the heat pump cycle principle. Specifically, it can be implemented using a refrigeration system including a compressor, evaporator, condenser, and expansion valve, and its function is to provide a stable heat source for the wall-mounted air source heat pump water tank 10. The wall-mounted air source heat pump water tank 10 refers to a container structure used for storing and heating liquids. Specifically, it can be implemented using a split double-layer inner tank design, reducing the mixing of hot and cold water by setting independent first inner tank 121 and second inner tank 122. The first refrigerant interface 111 and the second refrigerant interface 112 refer to the channels connecting the air source heat pump unit 20 and the refrigerant pipeline. Specifically, it can be implemented using a copper flange sealing connection structure to ensure that the refrigerant does not leak during circulation. The first pipeline and the second pipeline refer to the heat exchange structure distributed in different inner tanks. Specifically, it can be implemented using spiral or U-shaped wound copper tubes, increasing the heating efficiency by increasing the heat exchange area.

[0077] Specifically, the air source heat pump unit 20 transfers heat to the refrigerant pipeline of the wall-mounted air source water tank 10 through refrigerant circulation. The refrigerant flows sequentially through the first pipeline and the second pipeline. The first pipeline heats the hot water to be output within the first inner tank 121, while the second pipeline preheats the incoming cold water within the second inner tank 122. The two inner tanks are connected by a connecting channel 123 to achieve water level balance. When the user uses hot water, the preheated water in the second inner tank 122 enters the first inner tank 121 through the connecting channel 123, preventing cold water from directly impacting the heated area. The air source heat pump unit 20 adjusts the refrigerant circulation volume according to water temperature requirements and can also use variable frequency technology to maintain a suitable temperature for each inner tank, reducing frequent start-stop cycles of the heat pump.

[0078] Compared with existing technologies, traditional single-tank structures suffer from poor thermal stratification due to the mixing of hot and cold water, requiring repeated heating of the entire tank of cold water. This new solution, however, uses dual-tank heating with separate heating circuits, separating the preheating and heat preservation processes and reducing the probability of hot and cold water mixing. Simultaneously, the independent first and second piping systems allow for zoned temperature control to meet different temperature requirements, preventing frequent start-stop cycles of the heat pump unit due to temperature fluctuations and thus improving system stability.

[0079] Through the above technical solution, this utility model solves the problems of low heating efficiency and unstable hot water supply caused by the mixing of hot and cold water in a single-tank water tank. The dual-tank structure, combined with the distributed heating refrigerant pipeline, achieves staged heating of hot and cold water, reducing ineffective heat energy loss. The connection method between the air source heat pump unit 20 and the refrigerant pipeline optimizes the workload of the heat pump system, extends the service life of the equipment, and ensures a constant water temperature during peak water usage.

[0080] The algorithms or displays provided herein are not inherently related to any particular computer, virtual system, or other device. Furthermore, the embodiments of this invention are not directed to any particular programming language.

[0081] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. Similarly, for the sake of brevity and to aid in understanding one or more aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. The claims, which follow the detailed description, are hereby expressly incorporated into that detailed description, wherein each claim itself constitutes a separate embodiment of the invention.

[0082] Those skilled in the art will understand that the modules in the device of the embodiment can be adaptively changed and placed in one or more devices different from that embodiment. Modules, units, or components in the embodiment can be combined into a single module, unit, or component, and further, they can be divided into multiple sub-modules, sub-units, or sub-components, except that at least some of such features and / or processes or units are mutually exclusive.

[0083] It should be noted that the above embodiments are illustrative of the present invention and not restrictive of it, and those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims listing several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be construed as limiting the order of execution.

Claims

1. A wall-mounted air-source heat pump water tank, characterized in that, At least including: The housing (11) is provided with a first refrigerant interface (111), a second refrigerant interface (112), a water inlet interface (113) and a water outlet interface (114). The inner liner assembly is disposed inside the housing (11). The inner liner assembly includes a first inner liner (121) and a second inner liner (122). The first inner liner (121) is connected to the water outlet (114), and the second inner liner (122) is connected to the water inlet (113). At least one connection channel (123) is provided between the first inner liner (121) and the second inner liner (122). The refrigerant pipeline has a first end connected to the first refrigerant interface (111) and a second end connected to the second refrigerant interface (112). The refrigerant pipeline is provided with a first pipeline and a second pipeline connected to each other. The first pipeline is located inside the first inner liner (121), and the second pipeline is located inside the second inner liner (122) to heat the liquid in the first inner liner (121) and the second inner liner (122) respectively.

2. The wall-mounted air source water tank according to claim 1, characterized in that, The first inner liner (121) is located above the second inner liner (122).

3. The wall-mounted air-source heat pump water tank according to claim 1 or 2, characterized in that, The first inner liner (121) is provided with a first opening, and the second inner liner (122) is provided with a second opening. The refrigerant pipeline is wound around the first inner liner (121) along the first opening to form a first pipeline, and the refrigerant pipeline is wound around the second inner liner (122) along the second opening to form a second pipeline.

4. The wall-mounted air-source heat pump water tank according to claim 3, characterized in that, Both the first and second pipelines are formed by winding in a U-shape.

5. The wall-mounted air-source heat pump water tank according to claim 4, characterized in that, The first and second pipes are wound counterclockwise, forming multiple sequentially connected annular pipes in the first inner liner (121) and the second inner liner (122), and the annular pipes gradually decrease in size along the winding trajectory.

6. The wall-mounted air-source heat pump water tank according to claim 3, characterized in that, Both the first and second pipelines are spirally wound.

7. The wall-mounted air-source heat pump water tank according to claim 3, characterized in that, The first opening is provided with a first sealing flange and the first inner liner (121) is sealed by the first sealing flange; the second opening is provided with a second sealing flange and the second inner liner (122) is sealed by the second sealing flange.

8. The wall-mounted air-source heat pump water tank according to claim 1 or 2, characterized in that, It is also provided with a sewage outlet (115), which is connected to the second inner liner (122).

9. The wall-mounted air-source heat pump water tank according to claim 1 or 2, characterized in that, The first inner liner (121) and / or the second inner liner (122) are also provided with temperature probes (14) for detecting the temperature of the liquid inside the first inner liner (121) and / or the second inner liner (122).

10. An air source heat pump water heater, characterized in that, include: Air source heat pump unit (20). And the wall-mounted air source water tank (10) according to any one of claims 1-9, wherein the wall-mounted air source water tank (10) is connected to the air source host through a first refrigerant interface (111) and a second refrigerant interface (112) to heat the liquid in the wall-mounted air source water tank.

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