A heat storage heat exchanger and a refrigeration water purifier

Abstract

This utility model provides a heat storage heat exchanger and a refrigerated water purifier, belonging to the technical field of heat exchange equipment. The utility model includes a heat storage tank and a heat storage circulation pump. The heat storage tank has an annular inner cavity, within which a refrigerant coil and a drinking liquid coil are arranged in an inner-outer sleeve configuration. Spiral fins are arranged along the wall of the refrigerant coil, forming spiral-shaped flow guide gaps. The drinking liquid coil is arranged along these spiral-shaped flow guide gaps. The inlet of the heat storage circulation pump connects to one side of the annular inner cavity, and the outlet of the heat storage circulation pump connects to the other side of the annular inner cavity. This heat storage heat exchanger and refrigerated water purifier, through dynamic circulation of the heat storage medium, enhanced heat exchange via spiral fins, and modular integrated design, achieves the core objectives of "high efficiency, energy saving, constant temperature, and easy maintenance" for commercial refrigerated water purifiers, effectively solving the defects of traditional equipment such as low cooling efficiency, uneven temperature, high energy consumption, and inconvenient maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a multi-stage heat exchange device, particularly a heat storage heat exchanger and a refrigeration water purifier. Background Technology

[0002] With increasing public awareness of healthy drinking water, commercial water purifiers are being used more and more widely in public places such as schools, offices, and shopping malls. In these scenarios, especially in hot weather or when there is a need for large quantities of readily available cold water, the demand for chilled drinking water has increased significantly. However, existing commercial water purifier technology has the following main problems and limitations:

[0003] Lack of basic functions: Traditional commercial water purifiers generally only have the basic function of purifying water quality and lack effective cooling capacity, which cannot meet users' needs for instant cold water supply. The user experience is poor during hot seasons or specific peak usage periods.

[0004] Low cooling efficiency: Some water purifiers with cooling functions have inefficient cooling systems, resulting in slow cold water output and difficulty in quickly meeting large water demands or maintaining a stable cold water supply. Uneven cooling: Existing cooling technologies often suffer from uneven temperature distribution, leading to large fluctuations in drinking water temperature. It is difficult to ensure that the temperature of each cup of water is stable and reaches the expected low temperature, affecting the user experience.

[0005] Excessive energy consumption: Traditional refrigeration methods consume a lot of energy during operation, especially when rapid cooling or continuous maintenance of low temperature is required, which causes unnecessary energy waste, increases operating costs, and goes against the current trend of energy conservation and environmental protection.

[0006] Complex and inconvenient maintenance: The internal structure design of existing refrigeration-type water purifiers is usually not compact or optimized enough, especially the layout of the refrigeration module and heat exchange components, which makes maintenance difficult. When it is necessary to repair key components in the refrigeration system, there are problems such as complex structure, difficult disassembly, and limited maintenance space, which greatly increases the time and cost of maintenance and reduces the availability and maintenance efficiency of the equipment.

[0007] These problems are interconnected and mutually restrictive, resulting in low and uneven cooling efficiency that often requires intensive system operation to compensate, further increasing energy consumption. Meanwhile, complex structures and inconvenient maintenance limit improvements in equipment reliability and optimization of operating costs. These deficiencies are amplified, especially in high-traffic, high-frequency public places, leading to decreased user satisfaction and increased operating costs. Therefore, there is an urgent need for a new technological solution that can provide efficient and uniform cooling, significantly reduce energy consumption, and is easy to maintain, in order to improve user experience and reduce operating costs. Utility Model Content

[0008] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a heat storage heat exchanger and a refrigeration water purifier.

[0009] The objective of this utility model can be achieved through the following technical solution: A heat storage heat exchanger includes a heat storage tank and a heat storage circulation pump. The heat storage tank has an annular inner cavity, in which a refrigerant coil and a drinking liquid coil are arranged. The drinking liquid coil and the refrigerant coil are arranged in an inner-outer fit. Spiral fins are arranged along the wall of the refrigerant coil, and the spiral fins form a spiral flow guide gap. The drinking liquid coil is arranged along the spiral flow guide gap. The inlet of the heat storage circulation pump is connected to one side of the annular inner cavity, and the outlet of the heat storage circulation pump is connected to the other side of the annular inner cavity.

[0010] In the above-mentioned heat storage heat exchanger, the heat storage box includes an inner shell and an outer shell. The inner shell and the outer shell are arranged in an inner-outer sleeve arrangement along the same central axis. The two ends of the inner shell and the outer shell are closed by annular plates. An annular inner cavity is formed between the inner shell and the outer shell. An installation cavity is formed on the inner circumference of the inner shell.

[0011] In the above-mentioned heat storage heat exchanger, the heat storage circulation pump is arranged inside the mounting cylinder cavity. The inlet of the heat storage circulation pump is connected to one side wall of the inner cylinder shell through the pump inlet pipe, and the outlet of the heat storage circulation pump is connected to the other side wall of the inner cylinder shell through the pump outlet pipe.

[0012] In the above-mentioned heat storage heat exchanger, the inlet of the pump inlet pipe is connected to the bottom region of the spiral fins, and the outlet of the pump outlet pipe is connected to the outer region of the top of the spiral fins.

[0013] In the aforementioned heat storage heat exchanger, one end of the drinking liquid coil forms an extension pipe 1 connected to the inlet connector, and the other end of the drinking liquid coil forms an extension pipe 2 connected to the outlet connector; one end of the refrigerant coil forms an extended inlet pipe, and the other end of the refrigerant coil forms an extended outlet pipe; several mounting holes are correspondingly opened on the spiral fins, and the extension pipe 1, the extension pipe 2, the extended inlet pipe, or the extended outlet pipe are respectively connected to the mounting holes.

[0014] In the aforementioned heat storage heat exchanger, welding holes one, two, three, and four are provided on the annular plate. Extension pipe one passes through welding hole one and is fixedly connected by an annular weld. Extension pipe two passes through welding hole two and is fixedly connected by an annular weld. Extension inlet pipe passes through welding hole three and is fixedly connected by an annular weld. Extension outlet pipe passes through welding hole four and is fixedly connected by an annular weld. Welding holes five and six are provided on the inner shell. Pump inlet pipe is fixedly connected to welding hole five by an annular weld. Pump outlet pipe is fixedly connected to welding hole six by an annular weld. Pump inlet pipe is connected to the inlet of the heat storage circulation pump through screw connector one. Pump outlet pipe is connected to the outlet of the heat storage circulation pump through screw connector two.

[0015] In the aforementioned heat storage heat exchanger, the inlet connector is connected to the outlet of the drinking liquid storage tank via a pipeline, the outlet connector is connected to the return port of the drinking liquid storage tank via a pipeline, a drinking liquid circulation pump is connected in series on the pipeline, and a supply valve is connected to the drinking liquid storage tank.

[0016] In the aforementioned heat storage heat exchanger, a water inlet is provided on the annular plate located on the top side, and a water inlet connector is connected to the water inlet by a nut.

[0017] In the aforementioned heat storage heat exchanger, refrigerant circulates in the refrigerant coil; a heat storage medium, specifically water, is introduced into the heat storage tank; and drinking water circulates in the drinking liquid coil.

[0018] A refrigerated water purifier includes the aforementioned heat storage heat exchanger.

[0019] Compared with existing technologies, this heat storage heat exchanger and refrigeration water purifier have the following beneficial effects:

[0020] This invention solves the problems of low efficiency, high energy consumption, uneven temperature, and inconvenient maintenance in existing commercial refrigerated water purifiers through innovative structural design and heat exchange mechanism. The heat exchange component incorporates a high-efficiency heat exchanger within the refrigeration module, employing a dual-coil heat exchanger structure. One heat exchanger is supplied with the drinking water requiring cooling, while the other is supplied with refrigerant. Through efficient heat exchange, heat transfer is achieved between the refrigerant and water, and between water and drinking water, improving the cooling effect. Furthermore, this structural design increases the stability of the drinking water outlet temperature, and the dual isolation between the drinking water and the refrigeration system enhances heat exchange efficiency, further improving the performance of the refrigeration module.

[0021] The main advantages of this utility model are as follows:

[0022] 1. Significantly improved heat exchange efficiency, faster cooling speed and better effect: Spiral fins are added to the outer wall of the refrigerant coil to form a spiral flow guiding gap, and the drinking water coil is tightly embedded along this gap. This design significantly increases the effective heat exchange area and forces the heat storage medium to efficiently flush the walls of the two coils along the spiral path, greatly enhancing the turbulent heat transfer effect. The cold energy released by the refrigerant is concentrated and transferred to the flow guiding gap area through the fins, so that the drinking water flowing through this area can efficiently release heat and cool down.

[0023] 2. Stable and highly uniform cooling temperature: a) The heat storage tank and its internal heat storage medium act as a buffer for cold energy, continuously storing the cooling capacity generated by the refrigerant; b) The heat storage circulation pump drives the heat storage medium to form a closed dynamic circulation in the annular inner cavity (drawn in from the bottom of the fins, discharged from the top, and then flowing back to the bottom), completely eliminating the temperature stratification phenomenon during static cold storage, uniformly distributing the cooling capacity while improving the cooling effect; c) Drinking water flows through coils that are evenly surrounding the high-efficiency heat exchange area (guide gaps), ensuring the uniformity and efficiency of the cold absorption process. In short, the dynamically circulating heat storage medium continuously and evenly provides cooling capacity to the drinking water coils, thereby ensuring a constant and reliable low temperature for the outlet water.

[0024] 3. Significantly reduced energy consumption and more economical operation: a) The efficient heat exchange mechanism (spiral fins + forced dynamic circulation) maximizes energy utilization, shortens the running time of the refrigeration system (compressor), and directly reduces power consumption; b) The cold energy stored in the heat storage medium can continue to provide cooling effect during compressor shutdown (e.g., cold storage during off-peak water use and cold release during peak periods), effectively smoothing the compressor load and avoiding frequent start-stop and peak power consumption waste.

[0025] 4. Significantly improved ease of maintenance: The refrigeration structure adopts a modular and integrated design concept, with each component arranged in a reasonable manner (for example, the heat storage circulation pump is installed in the inner circumferential space of the heat storage box), which facilitates installation, disassembly and maintenance.

[0026] In summary, this heat storage heat exchanger and refrigerated water purifier achieve the core objectives of "high efficiency, energy saving, constant temperature and easy maintenance" for commercial refrigerated water purifiers through dynamic circulation of the heat storage medium, enhanced heat exchange with spiral fins and modular integrated design. It effectively solves the defects of traditional equipment such as low refrigeration efficiency, uneven temperature, high energy consumption and inconvenient maintenance. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the heat storage heat exchanger.

[0028] Figure 2 This is a top view of the overall structure of this heat storage heat exchanger.

[0029] Figure 3 This is the internal (with spiral fins) three-dimensional structure of the heat storage heat exchanger. Figure 1 .

[0030] Figure 4 This is the internal (with spiral fins) three-dimensional structure of the heat storage heat exchanger. Figure 2 .

[0031] Figure 5 This is the internal (without spiral fins) three-dimensional structure of the heat storage heat exchanger. Figure 3 .

[0032] Figure 6 This is the internal (without spiral fins) three-dimensional structure of the heat storage heat exchanger. Figure 4 .

[0033] Figure 7 This is a three-dimensional structural diagram of the heat storage circulation pump in this heat storage heat exchanger.

[0034] In the diagram, 1. Heat storage tank; 1a. Inner shell; 1b. Outer shell; 1c. Annular plate; 2. Refrigerant coil; 2a. Extended inlet pipe; 2b. Extended outlet pipe; 3. Drinking liquid coil; 3a. Extension pipe one; 3b. Inlet connector; 3c. Extension pipe two; 3d. Outlet connector; 4. Spiral fins; 5. Heat storage circulation pump; 6. Pump inlet pipe; 7. Pump outlet pipe; 8. Water supply connector. Detailed Implementation

[0035] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0036] Example 1

[0037] like Figures 1 to 7 As shown, this heat storage heat exchanger includes a heat storage tank 1 and a heat storage circulation pump 5. The heat storage tank 1 has an annular inner cavity, in which a refrigerant coil 2 and a drinking liquid coil 3 are installed. The drinking liquid coil 3 and the refrigerant coil 2 are arranged in an inner-outer-outer configuration, as shown. Figure 4 As shown, spiral fins 4 are arranged along the wall of the refrigerant coil 2, forming a spiral flow guide gap. The drinking liquid coil 3 is arranged along the spiral flow guide gap. The inlet of the heat storage circulation pump 5 is connected to one side of the annular inner cavity, and the outlet of the heat storage circulation pump 5 is connected to the other side of the annular inner cavity.

[0038] Preferably, the refrigerant in refrigerant coil 2 is internally circulated. Specifically, a medium-temperature refrigerant is used. Medium-temperature refrigerants are the most widely used category within the refrigeration range of 0℃ ≥ ts > -60℃, such as R22 (ts ≈ -40.8℃), R134a (ts ≈ -26.1℃), R410A (ts ≈ -51.6℃, but with higher operating pressure), R32 (ts ≈ -51.7℃), R290 (ts ≈ -42.1℃), and R717 (ts ≈ -33.4℃). These are commonly used in household air conditioners, refrigerators, and supermarket freezers.

[0039] The heat storage tank 1 is circulated with a heat storage medium, specifically water, which is purified water. Water has a high specific heat capacity, making it ideal for optimizing cold storage and improving cooling efficiency. The purified water is free of impurities and will not corrode the heat storage tank 1 or the heat exchange metal pipes, thus protecting the components and extending the overall lifespan of the equipment. A float ball can be installed inside the heat storage tank 1 to monitor the water level and allow for timely replenishment of purified water.

[0040] The drinking liquid coil 3 can circulate drinking water, or it can circulate drinkable beverages or juices.

[0041] The working principle of this heat storage heat exchanger is as follows:

[0042] Refrigerant is introduced into refrigerant coil 2, drinking water is introduced into drinking liquid coil 3, and heat storage tank 1 is filled with heat storage medium (water). The refrigerant absorbs heat from the heat storage medium (water) in refrigerant coil 2, cooling the medium. Simultaneously, the heat exchange area is concentrated and increased through spiral fins 4. The heat storage medium (water) absorbs heat from the drinking water in drinking liquid coil 3, lowering the drinking water temperature and maintaining a chilled state. By utilizing the heat storage medium (water) to continuously store a certain amount of cold energy, and then using this medium to cool drinking water, a constant and uniform low-temperature state for the drinking water can be ensured. Furthermore, storing cold energy avoids energy waste and improves the cooling efficiency and effectiveness of the drinking water.

[0043] The refrigerant in the refrigerant coil 2 absorbs heat for cooling and dissipates the cold energy through the spiral fins 4, so that the cold energy is concentrated in the spiral-shaped guide gap area. The drinking liquid coil 3 is arranged in conjunction with the guide gap to further improve the cooling efficiency and effect of the liquid flow in the drinking liquid coil 3.

[0044] The heat storage circulation pump 5 is started to extract the refrigerant from one side of the annular inner cavity and pump it into the other side. The refrigerant on the other side of the annular inner cavity flows back to the opposite side, thus repeating the cycle. This drives the refrigerant to circulate, changing static cold storage into dynamic cold storage. Through continuous flow, the heat absorption capacity can be balanced, maintaining uniform cooling of the liquid flow in the entire drinking liquid coil 3. Dynamic heat exchange can also improve the cooling efficiency and effect.

[0045] like Figure 1 and 2 As shown, preferably, the heat storage box 1 includes an inner shell 1a and an outer shell 1b. The inner shell 1a and the outer shell 1b are arranged in an inner-outer-outer configuration along the same central axis. The two ends of the inner shell 1a and the outer shell 1b are closed by an annular plate 1c. An annular inner cavity is formed between the inner shell 1a and the outer shell 1b. An installation cavity is formed on the inner circumference of the inner shell 1a.

[0046] The inner shell 1a and outer shell 1b can be designed in various shapes, such as square, rectangular, polygonal, circular, and elliptical. Among these, the circular shell is the optimal solution, as it is more suitable for fluid dynamics design and easier to arrange and install. When the heat storage tank 1 is a circular shell, the refrigerant coil 2, drinking liquid coil 3, and spiral fins 4 inside it all adopt a circular outer contour structure, which facilitates the smooth flow of liquid and allows for concentric arrangement, achieving a balanced design for the overall structure.

[0047] like Figure 2 and 7 As shown, preferably, the heat storage circulation pump 5 is arranged inside the installation cylinder cavity. The inlet of the heat storage circulation pump 5 is connected to one side wall of the inner cylinder shell 1a through the pump inlet pipe 6, and the outlet of the heat storage circulation pump 5 is connected to the other side wall of the inner cylinder shell 1a through the pump outlet pipe 7.

[0048] The heat storage circulation pump 5 is installed in the space enclosed by the inner shell 1a, thereby achieving a concealed installation of the heat storage circulation pump 5, optimizing the external structure of the overall heat storage heat exchanger, reducing the space occupied, making the overall structure more compact, and facilitating installation inside the chiller water purifier.

[0049] like Figure 3 As shown, preferably, the inlet of the pump inlet pipe 6 is connected to the bottom region of the spiral fin 4, and the outlet of the pump outlet pipe 7 is connected to the outer region of the top of the spiral fin 4.

[0050] The heat storage medium located at the bottom region of the spiral fin 4 enters the inlet pipe 6, is driven by the heat storage circulation pump 5, and is discharged through the outlet pipe 7 to the outer space at the top of the spiral fin 4. The heat storage medium then passes through the spiral-shaped guide gaps of the spiral fin 4 to reach the bottom region, thus circulating. By arranging the inlet pipe 6 and outlet pipe 7 in different positions, the length of the circulation path is increased, making full use of the spiral-shaped guide gaps of the spiral fin 4, enhancing the turbulence of the liquid flow, providing sufficient space and time for heat exchange, and improving the temperature uniformity of the heat storage medium.

[0051] like Figure 5 and 6As shown, preferably, one end of the drinking liquid coil 3 forms an extension tube 3a connected to the inlet connector 3b, and the other end of the drinking liquid coil 3 forms an extension tube 3c connected to the outlet connector 3d; one end of the refrigerant coil 2 forms an extended inlet pipe 2a, and the other end of the refrigerant coil 2 forms an extended outlet pipe 2b; several mounting holes are correspondingly opened on the spiral fins 4, and the extension tube 3a, extension tube 3c, extended inlet pipe 2a or extended outlet pipe 2b are respectively connected to the mounting holes.

[0052] The drinking liquid coil 3 is extended at both ends by extension pipe 3a and extension pipe 3c to connect with other pipes. Similarly, the refrigerant coil 2 is extended at both ends by extension pipe 2a and extension pipe 2b to connect with other pipes. Mounting holes are made on the spiral fins 4, with the hole diameter slightly larger than the pipe diameter. The pipe body is inserted into the corresponding mounting holes to achieve the pipe arrangement. This arrangement provides support for the extended pipe body without interfering with the pipework.

[0053] like Figure 1 and 2 As shown, preferably, the annular plate 1c has welding holes one, two, three, and four. Extension pipe one 3a passes through welding hole one and is fixedly connected via an annular weld. Extension pipe two 3c passes through welding hole two and is fixedly connected via an annular weld. Extension inlet pipe 2a passes through welding hole three and is fixedly connected via an annular weld. Extension outlet pipe 2b passes through welding hole four and is fixedly connected via an annular weld. The inner shell 1a has welding holes five and six. Pump inlet pipe 6 is fixedly connected to welding hole five via an annular weld. Pump outlet pipe 7 is fixedly connected to welding hole six via an annular weld. Pump inlet pipe 6 is connected to the inlet of the thermal storage circulating pump 5 via screw connector one. Pump outlet pipe 7 is connected to the outlet of the thermal storage circulating pump 5 via screw connector two. Both the inlet and outlet of the thermal storage circulating pump 5 are threaded, and are connected by corresponding screw connector one or screw connector two to form a threaded engagement connection.

[0054] The heat storage tank 1, refrigerant coil 2, drinking liquid coil 3, and heat storage circulation pump 5 are fixedly connected by welding and threading to form an integrated unit, thereby realizing a complete integrated product, which is convenient for sale and allows for modular installation within the refrigeration water purifier, improving the disassembly and assembly efficiency for consumers and realizing the modular form of the refrigeration water purifier to simplify the structure.

[0055] Preferably, the heat storage tank 1 is covered with an insulation layer to prevent the cold energy stored in the heat storage medium from diffusing to the outside, thereby preventing cold energy loss, saving energy and improving the cooling effect. On the other hand, since the heat storage tank 1 is integrated with the refrigerant coil 2, the drinking liquid coil 3 and the heat storage circulation pump 5, it is convenient to cover the insulation layer and avoid damage to the insulation layer caused by disassembly of separate components.

[0056] Preferably, the inlet connector 3b is connected to the outlet of the drinking liquid storage tank via a pipeline, the outlet connector 3d is connected to the return port of the drinking liquid storage tank via a pipeline, a drinking liquid circulation pump is connected in series on the pipeline, and a supply valve is connected to the drinking liquid storage tank.

[0057] The drinking liquid circulation pump is turned on to drive the drinking water in the drinking liquid storage tank to continuously pass through the drinking liquid coil 3, so as to achieve a continuous cooling effect. When the liquid supply valve is turned on, the drinking water in the drinking liquid storage tank is sold out, keeping the drinking water at a low temperature at all times to improve the service quality.

[0058] like Figures 1 to 3 As shown, preferably, a water inlet is provided on the annular plate 1c located on the top side, and a water inlet connector 8 is connected to the water inlet by a nut. The nut is provided on the water inlet, and the nut has an internal thread. The water inlet connector 8 has an external thread, and the water inlet connector 8 is inserted into the nut to form a threaded engagement and locking connection.

[0059] When the heat storage medium in the heat storage tank 1 is insufficient, the water supply connector 8 can be connected to add an appropriate amount of heat storage medium to the heat storage tank 1. After adding the medium, the water supply connector 8 should be closed.

[0060] Example 2

[0061] Based on Embodiment 1, the difference in this embodiment is:

[0062] A refrigerated water purifier includes the aforementioned heat storage heat exchanger.

[0063] This invention solves the problems of low efficiency, high energy consumption, uneven temperature, and inconvenient maintenance in existing commercial refrigerated water purifiers through innovative structural design and heat exchange mechanism. The heat exchange component incorporates a high-efficiency heat exchanger within the refrigeration module, employing a dual-coil heat exchanger structure. One heat exchanger is supplied with the drinking water requiring cooling, while the other is supplied with refrigerant. Through efficient heat exchange, heat transfer is achieved between the refrigerant and water, and between water and drinking water, improving the cooling effect. Furthermore, this structural design increases the stability of the drinking water outlet temperature, and the dual isolation between the drinking water and the refrigeration system enhances heat exchange efficiency, further improving the performance of the refrigeration module.

[0064] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0065] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A heat storage heat exchanger, comprising a heat storage tank and a heat storage circulation pump, characterized in that, The heat storage tank has an annular inner cavity, in which a refrigerant coil and a drinking liquid coil are arranged. The drinking liquid coil and the refrigerant coil are arranged in an inner-outer fit. Spiral fins are arranged along the wall of the refrigerant coil, forming a spiral flow guide gap. The drinking liquid coil is arranged along the spiral flow guide gap. The inlet of the heat storage circulation pump is connected to one side of the annular inner cavity, and the outlet of the heat storage circulation pump is connected to the other side of the annular inner cavity.

2. The heat storage heat exchanger as described in claim 1, characterized in that, The heat storage tank includes an inner shell and an outer shell. The inner shell and the outer shell are arranged in an inner-outer sleeve arrangement along the same central axis. The two ends of the inner shell and the outer shell are closed by annular plates. An annular inner cavity is formed between the inner shell and the outer shell. An installation cavity is formed on the inner circumference of the inner shell.

3. The heat storage heat exchanger as described in claim 2, characterized in that, The heat storage circulation pump is arranged inside the mounting cylinder cavity. The inlet of the heat storage circulation pump is connected to one side wall of the inner cylinder shell through the pump inlet pipe, and the outlet of the heat storage circulation pump is connected to the other side wall of the inner cylinder shell through the pump outlet pipe.

4. The heat storage heat exchanger as described in claim 3, characterized in that, The inlet of the pump inlet pipe is connected to the bottom region of the spiral fin, and the outlet of the pump outlet pipe is connected to the outer region of the top of the spiral fin.

5. The heat storage heat exchanger as described in claim 3, characterized in that, One end of the drinking liquid coil forms an extension tube 1 connected to the inlet connector, and the other end of the drinking liquid coil forms an extension tube 2 connected to the outlet connector; one end of the refrigerant coil forms an extended inlet pipe, and the other end of the refrigerant coil forms an extended outlet pipe; several mounting holes are correspondingly opened on the spiral fins, and the extension tube 1, the extension tube 2, the extended inlet pipe or the extended outlet pipe are respectively connected to the mounting holes.

6. The heat storage heat exchanger as described in claim 5, characterized in that, Welding holes 1, 2, 3, and 4 are provided on the annular plate. Extension pipe 1 passes through welding hole 1 and is fixedly connected by an annular weld. Extension pipe 2 passes through welding hole 2 and is fixedly connected by an annular weld. Extension inlet pipe passes through welding hole 3 and is fixedly connected by an annular weld. Extension outlet pipe passes through welding hole 4 and is fixedly connected by an annular weld. Welding holes 5 and 6 are provided on the inner shell. Pump inlet pipe is fixedly connected to welding hole 5 by an annular weld. Pump outlet pipe is fixedly connected to welding hole 6 by an annular weld. Pump inlet pipe is connected to the inlet of the thermal storage circulation pump through screw connector 1. Pump outlet pipe is connected to the outlet of the thermal storage circulation pump through screw connector 2.

7. The heat storage heat exchanger as described in claim 5, characterized in that, The inlet connector is connected to the outlet of the drinking liquid storage tank via a pipeline, the outlet connector is connected to the return port of the drinking liquid storage tank via a pipeline, a drinking liquid circulation pump is connected in series on the pipeline, and a supply valve is connected to the drinking liquid storage tank.

8. The heat storage heat exchanger as described in claim 2, characterized in that, A water inlet is provided on the annular plate located on the top side, and a water inlet connector is connected to the water inlet by a nut.

9. The heat storage heat exchanger as described in claim 1, characterized in that, The refrigerant coil circulates refrigerant; the heat storage tank is circulated with a heat storage medium, specifically water; and the drinking liquid coil circulates drinking water.

10. A refrigerated water purifier, characterized in that, Includes the heat storage heat exchanger as described in any one of claims 1 to 9.

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