Refrigerating system and water dispenser

Abstract

The utility model relates to the technical field of drinking water equipment, and discloses a refrigerating system which comprises a cold tank, an evaporator pipeline, a refrigerating assembly and a circulating assembly, and the cold tank is provided with a first inlet, a first outlet and a circulating water inlet; the evaporator pipeline is arranged in the cold tank, and the two ends of the evaporator pipeline communicate with the first inlet and the first outlet correspondingly. The refrigeration assembly is arranged outside the cold tank, communicates with the first inlet and the first outlet, and is used for driving a cooling medium to enter the evaporator pipeline from the first inlet; the circulating assembly is arranged outside the cold tank and comprises a circulating pump and a circulating pipe, the first end of the circulating pipe is communicated with the circulating water inlet, the second end of the circulating pipe extends into the cold tank from the first outlet and extends into the evaporator pipeline to a preset length, and the second end of the circulating pipe is communicated into the cold tank. The utility model aims to solve the technical problems of poor refrigeration efficiency and insufficient cold water output of the water dispenser in a short time.

Description

Technical Field

[0001] This utility model relates to the field of drinking water equipment technology, and in particular to a refrigeration system and a water dispenser. Background Technology

[0002] As a device for providing clean drinking water in daily life, the function of water dispensers has expanded from simply heating and providing hot water to offering diversified services including chilled water. With changes in people's lifestyles, the demand for drinking cold water is increasing, especially in public places such as office buildings and airports.

[0003] In related technologies, when water dispensers are used frequently, the water in the cold tank exchanges heat with the evaporator. However, due to poor heat transfer, the cooling efficiency is poor in a short time, the amount of cold water dispensed is insufficient, and it cannot cool down quickly, causing users to have to wait for a long time. Utility Model Content

[0004] The purpose of this utility model is to provide a refrigeration system and a water dispenser to solve the technical problems of poor refrigeration efficiency and insufficient cold water output in a short period of time.

[0005] To achieve the above objectives, this utility model provides a refrigeration system, comprising:

[0006] A cold tank, wherein the cold tank is provided with a first inlet, a first outlet and a circulating water inlet;

[0007] An evaporator pipe is provided inside the cold tank, and both ends of the evaporator pipe are connected to the first inlet and the first outlet, respectively.

[0008] A refrigeration assembly is disposed outside the cold tank and is connected to the first inlet and the first outlet respectively. The refrigeration assembly is used to drive the cooling medium from the first inlet into the evaporator pipe.

[0009] A circulation assembly is located outside the cold tank. The circulation assembly includes a circulation pump and a circulation pipe. A first end of the circulation pipe is connected to the circulating water inlet, and a second end of the circulation pipe extends from the first outlet into the cold tank and into the evaporator pipe to a predetermined length. The second end of the circulation pipe is connected to the inside of the cold tank. The circulation pump is located on the circulation pipe and is used to drive the drinking water to be heated to circulate between the circulation pipe and the cold tank.

[0010] In the refrigeration system of this application, the cooling medium flows in the opposite direction to the drinking water in the circulation pipe within the cold tank.

[0011] In the refrigeration system of this application, the first inlet and the first outlet are spaced apart at the top of the cold tank, and the circulating water inlet is located at the bottom of the cold tank.

[0012] In the refrigeration system of this application, the evaporator pipe gradually bends and extends from the first inlet to the first outlet.

[0013] In the refrigeration system of this application, the evaporator pipe is spirally arranged from top to bottom along the vertical direction of the cold tank.

[0014] In the refrigeration system of this application, the cold tank is connected to a water inlet pipe, and the water inlet pipe is equipped with a water inlet valve; and / or

[0015] The cold tank is connected to a water outlet pipe, and the water outlet pipe is equipped with a water outlet valve; and / or

[0016] The cold tank is connected to an exhaust pipe, and the exhaust pipe is equipped with an exhaust valve; and / or

[0017] The cold tank is connected to a drain pipe, and a drain valve is installed on the drain pipe.

[0018] In the refrigeration system of this application, the cold tank is equipped with a water level monitoring device, which is used to monitor the water level of the drinking water.

[0019] The water level monitoring device includes a water level gauge and / or a water level sensor.

[0020] In the refrigeration system of this application, the cold tank is equipped with a temperature monitoring device, which is used to monitor the temperature of the drinking water;

[0021] The temperature monitoring device includes a thermometer and / or a temperature sensor.

[0022] In the refrigeration system of this application, the refrigeration components include a compressor, a condenser, a dryer filter, and a capillary tube. The first end of the compressor is connected to the first outlet, the second end of the compressor is connected to the first end of the condenser, the second end of the condenser is connected to the first end of the dryer filter, the second end of the dryer filter is connected to the first end of the capillary tube, and the second end of the capillary tube is connected to the first inlet.

[0023] Secondly, this utility model provides a water dispenser, including the aforementioned refrigeration system.

[0024] This utility model provides a refrigeration system, the advantages of which are:

[0025] This utility model's refrigeration system includes a cold tank, evaporator pipes, a refrigeration assembly, and a circulation assembly. When low-temperature drinking water needs to be produced, the refrigeration assembly is activated to circulate the cooling medium in the evaporator pipes, absorbing heat from the drinking water in the cold tank. The circulation pump is then activated, driving the drinking water in the cold tank into the circulation pipe fitted inside the evaporator pipes, where the drinking water exchanges heat with the cooling medium. Since the second end of the circulation pipe extends into the evaporator pipes and connects to the inside of the cold tank, the drinking water in the circulation pipes enters the cold tank and exchanges heat with the evaporator pipes submerged in the drinking water, creating thermal convection between the drinking water and the cooling medium, thus improving heat exchange efficiency. In this embodiment, the second end of the circulation pipe is fitted inside the evaporator pipes. There are two heat exchange processes between the cooling medium and the drinking water: first, heat exchange mainly occurs between the evaporator pipes and the circulation pipes via convection; second, heat exchange occurs between the evaporator pipes and the drinking water within the cold tank primarily via heat conduction, thereby enhancing the heat exchange effect and achieving rapid cooling of water. In the second heat exchange process, the evaporator pipes are made of a material with high thermal conductivity, and the heat on their outer walls is rapidly transferred to the drinking water inside the tank, causing the water temperature throughout the cold tank to drop quickly. This embodiment achieves rapid cooling of water through the combined effect of two heat exchange processes. This dual heat exchange process allows the refrigeration system to produce more cold water in a shorter time, thereby meeting the user's actual needs. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are one embodiment of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of the refrigeration system provided in the embodiment of this utility model;

[0028] Figure 2 Another structural schematic diagram of the refrigeration system provided in an embodiment of this utility model.

[0029] The markings in the image are as follows:

[0030] 10. Cold tank; 11. First inlet; 12. First outlet; 13. Circulating water inlet; 14. Water inlet pipe; 15. Water outlet pipe; 16. Exhaust pipe; 17. Sewage pipe; 18. Water level monitoring device; 19. Temperature monitoring device; 20. Evaporator piping; 30. Refrigeration components; 31. Compressor; 32. Condenser; 33. Dryer filter; 34. Capillary tube; 40. Circulation components; 41. Circulation pump; 42. Circulation pipe; 50. Insulation layer. Detailed Implementation

[0031] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0032] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer" and other terms used in this utility model to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device and components referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0034] like Figure 1 As shown, this embodiment of the present invention provides a refrigeration system, which includes a cold tank 10, an evaporator pipe 20, a refrigeration assembly 30, and a circulation assembly 40. The cold tank 10 is provided with a first inlet 11, a first outlet 12, and a circulating water inlet 13. The evaporator pipe 20 is disposed inside the cold tank 10, and its two ends are respectively connected to the first inlet 11 and the first outlet 12. The refrigeration assembly 30 is disposed outside the cold tank 10, and the refrigeration assembly 30 is respectively connected to the first inlet 11 and the first outlet 12. The refrigeration assembly 30 is used to drive the cooling medium. The water enters the evaporator pipe 20 from the first inlet 11; the circulation assembly 40 is located outside the cold tank 10. The circulation assembly 40 includes a circulation pump 41 and a circulation pipe 42. The first end of the circulation pipe 42 is connected to the circulating water inlet 13, and the second end of the circulation pipe 42 extends from the first outlet 12 into the cold tank 10 and extends into the evaporator pipe 20 to a predetermined length. The second end of the circulation pipe 42 is connected to the inside of the cold tank 10; the circulation pump 41 is located on the circulation pipe 42 and is used to drive the drinking water to be heat exchanged to circulate between the circulation pipe 42 and the cold tank 10.

[0035] In this embodiment, the cold tank 10 is a container with a first inlet 11, a first outlet 12, and a circulating water inlet 13, used to store drinking water to be heated or cooled. The cold tank 10 can be cylindrical, cuboid, elliptical, conical, or irregular in shape, etc., to hold sufficient drinking water to meet user needs.

[0036] In some embodiments, to reduce heat loss, the cold tank 10 may be insulated using insulation materials or structures. For example, one or more insulation layers 50 may be provided on the outer wall of the cold tank, and the material of the insulation layer 50 may be foam plastic, rubber or other insulation materials.

[0037] Evaporator pipe 20 is installed inside cold tank 10, with its two ends connected to the first inlet 11 and the first outlet 12 respectively, to form a flow path for the cooling medium in cold tank 10.

[0038] The refrigeration assembly 30 is installed outside the cold tank 10 and connected to the first inlet 11 and the first outlet 12 via pipes. The refrigeration assembly 30 is used to drive the cooling medium (such as refrigerant) to circulate in the evaporator pipe 20, absorbing and removing heat from the drinking water.

[0039] The circulation assembly 40 includes a circulation pump 41 and a circulation pipe 42. The first end (inlet end) of the circulation pipe 42 is connected to the circulating water inlet 13 of the cold tank 10. The second end (outlet end) of the circulation pipe 42 extends from the first outlet 12 into the interior of the cold tank 10 and extends into the evaporator pipe 20 to a predetermined length. The second end of the circulation pipe 42 has an opening inside the cold tank 10 to form a circulation loop. The circulation pipe 42 and the evaporator pipe 20 can be connected via a T-junction, with the circulation pipe 42 extending into the evaporator pipe 20 to the predetermined length.

[0040] Inside the cold tank 10, the evaporator pipe 20 serves as the outer pipe, and the circulation pipe 42 serves as the inner pipe. The circulation pipe 42 is fitted inside the evaporator pipe 20 and communicates with the inside of the cold tank 10. A circulation pump 41 is installed on the circulation pipe 42 to drive the drinking water to be heated to circulate between the circulation pipe 42 and the cold tank 10, accelerating the heat exchange process. The preset length of the circulation pipe 42 extending inside the evaporator pipe 20 can be adjusted according to the cooling effect on the drinking water.

[0041] Based on the above technical solution, when it is necessary to produce low-temperature drinking water, the refrigeration unit 30 is activated to allow the cooling medium to circulate in the evaporator pipe 20, absorbing heat from the drinking water in the cold tank 10. The circulation pump 41 is then activated, driving the drinking water in the cold tank 10 into the circulation pipe 42, which is fitted inside the evaporator pipe 20, allowing for efficient heat exchange between the drinking water and the cooling medium. Since the second end of the circulation pipe 42 extends into the evaporator pipe 20 and communicates with the inside of the cold tank 10, the drinking water in the circulation pipe 42 enters the cold tank 10 and exchanges heat with the evaporator pipe 20, which is submerged in drinking water. This creates thermal convection between the drinking water and the cooling medium, improving heat exchange efficiency.

[0042] In this embodiment, the second end (outlet end) of the circulation pipe 42 is connected inside the evaporator pipe 20. After the circulation pump 41 is started, drinking water circulates between the circulation pipe 42 and the cold tank 10, while the cooling medium flows inside the evaporator pipe 20. This results in two heat exchange processes: first, heat exchange between the evaporator pipe 20 and the circulation pipe 42 mainly occurs through convection; second, heat exchange between the evaporator pipe 20 and the drinking water in the cold tank 10 mainly occurs through heat conduction, thereby enhancing the heat exchange effect and achieving rapid cooling of the water. In the second heat exchange process, the evaporator pipe 20 is made of a material with high thermal conductivity, and the heat on its outer wall is quickly transferred to the drinking water in the tank, causing the water temperature in the entire cold tank 10 to drop rapidly.

[0043] This embodiment achieves rapid cooling of water through the combined action of two heat exchange processes. This dual heat exchange process enables the refrigeration system to produce more cold water in a shorter time, thereby meeting the actual needs of users.

[0044] In some embodiments, within the cold tank 10, the flow direction of the cooling medium in the evaporator pipe 20 is opposite to the flow direction of the drinking water in the circulation pipe 42.

[0045] Specifically, the cooling medium enters the evaporator pipe 20 from the first inlet 11 and flows along the evaporator pipe 20 toward the first outlet 12. Drinking water enters the circulation pipe 42 from the circulating water inlet 13, and after being driven by the circulation pump 41, it flows along the circulation pipe 42 toward the second end (outlet end) extending into the evaporator pipe 20. After exchanging heat with the cooling medium in the evaporator pipe 20, it returns to the cold tank 10 to continue the circulation process.

[0046] Understandably, in counter-current heat exchange, the cooling medium and drinking water flow in opposite directions, maintaining a large temperature difference between them throughout the process, thus accelerating heat transfer and exchange. This embodiment employs counter-current heat exchange to fully utilize the temperature difference between the cooling medium and drinking water, thereby improving the heat exchange efficiency between them.

[0047] In some embodiments, such as Figure 1 and Figure 2 As shown, the first inlet 11 and the first outlet 12 are spaced apart at the top of the cold tank 10, and the circulating water inlet 13 is located at the bottom of the cold tank 10.

[0048] Specifically, drinking water in the circulation pipe 42 enters the evaporator pipe 20 from the top of the cold tank 10 (or the first outlet 12), and then flows along the circulation pipe 42 in the cold tank 10, exchanging heat with the cooling medium in the evaporator pipe 20. After returning to the cold tank 10 from the second end (outlet end) of the circulation pipe 42, the drinking water flows from top to bottom into the circulating water inlet 13 in the cold tank 10, realizing the circulation of drinking water.

[0049] In some embodiments, such as Figure 1 and Figure 2 As shown, the evaporator pipe 20 gradually bends and extends from the first inlet 11 to the first outlet 12.

[0050] Specifically, the evaporator pipe 20 bends and extends inside the cold tank 10, which increases the flow path length of the cooling medium within the evaporator pipe 20, thereby increasing the contact time and contact area between the cooling medium and the drinking water, and further improving the heat exchange efficiency between the cooling medium and the drinking water. In practical applications, the bending and extension of the evaporator pipe 20 can be designed according to parameters such as the internal space of the cold tank 10, the flow rate and pressure of the cooling medium.

[0051] In some embodiments, the evaporator pipe 20 is spirally arranged from top to bottom along the vertical direction of the cold tank 10.

[0052] Specifically, the evaporator pipes 20 are arranged in a spiral shape from top to bottom along the vertical direction of the cold tank 10. On the one hand, this can fill the internal space of the cold tank 10 more compactly, thereby improving the space utilization of the cold tank 10. On the other hand, the spiral structure allows the evaporator pipes 20 to provide more heat exchange area in a limited space, further improving the heat exchange efficiency.

[0053] In some embodiments, such as Figure 1 and Figure 2 As shown, the cold tank 10 is connected to a water inlet pipe 14, and a water inlet valve is provided on the water inlet pipe 14.

[0054] Specifically, the inlet pipe 14 is used to connect the drinking water source to the cold tank 10, introducing external drinking water into the cold tank 10. The inlet valve is installed on the inlet pipe 14 to control the flow rate of drinking water in the inlet pipe 14.

[0055] For example, the inlet valve can be a solenoid valve to achieve remote control and automatic adjustment. For instance, when the amount of drinking water needs to be increased, the control system sends a signal to the solenoid valve to open it or increase its opening, allowing more drinking water to enter the cold tank 10. Conversely, when the amount of drinking water needs to be reduced, the solenoid valve is closed or its opening is reduced. Of course, the inlet valve can also be a manual valve for easy manual adjustment.

[0056] In some embodiments, such as Figure 1and Figure 2 As shown, the water inlet pipe 14 is connected to the top of the cold tank 10, which helps drinking water to flow smoothly into the cold tank 10 under the action of gravity.

[0057] In some embodiments, a filter screen may be provided at the inlet end of the water inlet pipe 14 to prevent impurities and particulate matter from entering the cold tank 10.

[0058] In some embodiments, such as Figure 1 and Figure 2 As shown, the cold tank 10 is connected to a water outlet pipe 15, and a water outlet valve is provided on the water outlet pipe 15.

[0059] Specifically, after the refrigeration system has finished cooling the drinking water, the low-temperature drinking water can be taken out for drinking by opening the water outlet valve on the water outlet pipe 15.

[0060] In this embodiment, the outlet valve can be either a manual valve or a solenoid valve. When a solenoid valve is used, the outlet valve receives signals from the control system to control its opening and closing, and the degree of opening. Based on user-set parameters such as outlet water temperature and flow rate, the valve opening is automatically calculated and adjusted. When a manual valve is used, the opening and closing of the outlet valve and the flow rate can be directly controlled by rotating the valve handle or pressing a button. Therefore, by controlling the size of the outlet valve, a stable output and regulation of drinking water can be achieved according to demand.

[0061] In some embodiments, such as Figure 1 and Figure 2 As shown, the water outlet pipe 15 is connected to the bottom of the cold tank 10, which helps drinking water to flow smoothly out of the cold tank 10 under the action of gravity.

[0062] In some embodiments, such as Figure 1 and Figure 2 As shown, the cold tank 10 is connected to an exhaust pipe 16, and an exhaust valve is provided on the exhaust pipe 16.

[0063] Specifically, in the refrigeration system of the water dispenser, the stability of the internal pressure and temperature of the cold tank 10 is crucial to the operation of the refrigeration system. In order to ensure the pressure balance inside the cold tank 10 and avoid damage to the system caused by excessively high or low pressure, and to expel the gas accumulated inside the cold tank 10 (such as steam or air generated during the refrigeration process), this embodiment provides an exhaust pipe 16 and an exhaust valve at the top of the cold tank 10. The exhaust pipe 16 can maintain the stability of the internal pressure of the cold tank 10.

[0064] In some embodiments, such as Figure 1 and Figure 2 As shown, the cold tank 10 is connected to a drain pipe 17, and a drain valve is provided on the drain pipe 17.

[0065] Specifically, after a period of use, the refrigeration system will typically accumulate some impurities or sediments inside the cold tank 10. To ensure the quality of drinking water and the normal operation of the refrigeration system, this embodiment provides a drain pipe 17 at the bottom of the cold tank 10 and a drain valve on the drain pipe 17. By opening the drain valve regularly to drain the water, the contaminants inside the cold tank 10 can be removed, keeping the water clean.

[0066] In some embodiments, such as Figure 1 and Figure 2 As shown, the cold tank 10 is equipped with a water level monitoring device 18, which is used to monitor the water level of the drinking water. The water level monitoring device 18 includes a water level gauge and / or a water level sensor.

[0067] Specifically, a water level monitoring device 18 is installed inside the cold tank 10 to monitor the water level of the drinking water inside the cold tank 10 in real time, so that the refrigeration system can automatically adjust according to the water level changes, avoiding the cold tank 10 from being too full due to excessive water level, or the water supply from being too low.

[0068] This embodiment uses the real-time monitoring function of the water level monitoring device 18 to monitor and control the water level of the drinking water inside the cold tank 10 in real time, so as to avoid water shortage or overflow.

[0069] In some embodiments, the water level monitoring device 18 employs a water level gauge. The type of water level gauge can be selected according to the shape, size, and monitoring requirements of the cold tank. Common types of water level gauges include float-type water level gauges and pressure-type water level gauges. Float-type water level gauges utilize the buoyancy of a float to move up and down with changes in water level, converting the float's position into a water level signal mechanically or electronically. Pressure-type water level gauges calculate the water level by measuring the water pressure exerted on the bottom or sidewalls of the cold tank.

[0070] In some embodiments, the water level monitoring device 18 employs a water level sensor, which can be linked with the refrigeration system control, enabling the refrigeration system to automatically adjust according to changes in water level, such as controlling the opening and closing of the inlet valve. When the water level sensor detects a high water level, the refrigeration system controls the inlet valve to close.

[0071] In some embodiments, such as Figure 1 and Figure 2 As shown, the cold tank 10 is equipped with a temperature monitoring device 19, which is used to monitor the temperature of the drinking water; wherein, the temperature monitoring device 19 includes a thermometer and / or a temperature sensor.

[0072] Specifically, the temperature monitoring device 19 is used to monitor the temperature of the drinking water in the cold tank 10 in real time so as to keep the drinking water within a suitable low temperature range.

[0073] In some embodiments, the temperature monitoring device 19 can be linked with the refrigeration system control, enabling the refrigeration system to automatically adjust according to temperature changes, such as increasing the output of the circulation pump 41 when the water temperature is too high, and reducing the output of the circulation pump 41 or stopping the operation of the circulation pump 41 when the water temperature is too low.

[0074] In some embodiments, such as Figure 2 As shown, the refrigeration assembly 30 includes a compressor 31, a condenser 32, a dryer filter 33, and a capillary tube 34. The first end of the compressor 31 is connected to the first outlet 12, the second end of the compressor 31 is connected to the first end of the condenser 32, the second end of the condenser 32 is connected to the first end of the dryer filter 33, the second end of the dryer filter 33 is connected to the first end of the capillary tube 34, and the second end of the capillary tube 34 is connected to the first inlet 11.

[0075] Specifically, compressor 31 is used to compress a low-temperature, low-pressure gaseous cooling medium into a high-temperature, high-pressure gaseous cooling medium. In this embodiment, the first end (right end) of compressor 31 is connected to the first outlet 12 of cold tank 10 via a pipe, receiving the low-temperature, low-pressure gaseous cooling medium flowing out from evaporator pipe 20. The second end (left end) of compressor 31 is connected to the first end (right end) of condenser 32 via a pipe, sending the high-temperature, high-pressure gaseous cooling medium into condenser 32.

[0076] The condenser 32 is located between the compressor 31 and the dryer filter 33. The condenser 32 is used to condense the high-temperature, high-pressure gaseous cooling medium into a high-temperature, high-pressure liquid cooling medium, thereby releasing heat to the external environment. Cooling medium flows inside the condenser 32, while externally, a fan or cooling water or other cooling medium is typically used for heat dissipation.

[0077] The dryer filter 33 is used to remove moisture and other impurities from the cooling medium. In this embodiment, the first end (right end) of the dryer filter 33 is connected to the second end (left end) of the condenser 32, receiving the high-temperature, high-pressure liquid cooling medium. The second end (left end) of the dryer filter 33 is connected to the first end of the capillary tube 34 through a pipe, allowing the dried and filtered liquid cooling medium to be fed into the capillary tube 34 for throttling and pressure reduction. It should be understood that the capillary tube 34 is a throttling device used to reduce the pressure of the high-temperature, high-pressure liquid cooling medium into a low-temperature, low-pressure liquid cooling medium. In this embodiment, the first end of the capillary tube 34 is connected to the second end (left end) of the dryer filter 33, receiving the dried and filtered liquid cooling medium, while the second end of the capillary tube 34 is connected to the first inlet 11 of the cold tank 10 through a pipe, allowing the low-temperature, low-pressure liquid cooling medium to be fed into the evaporator pipe 20, thereby completing one refrigeration cycle.

[0078] The working process of the refrigeration component 30 is as follows: First, the compressor 31 is started, compressing the low-temperature, low-pressure gaseous cooling medium flowing out of the evaporator pipe 20 in the cold tank 10 into a high-temperature, high-pressure gaseous cooling medium. Then, the high-temperature, high-pressure gaseous cooling medium enters the condenser 32 for condensation and heat release, becoming a high-temperature, high-pressure liquid cooling medium. Next, the liquid cooling medium passes through the dryer filter 33 for drying and filtration to remove moisture and other substances. Finally, the dried and filtered liquid cooling medium enters the capillary tube 34 for throttling and pressure reduction, becoming a low-temperature, low-pressure liquid cooling medium before re-entering the evaporator pipe 20 in the cold tank 10 for circulation.

[0079] Secondly, this utility model embodiment also provides a water dispenser, including a refrigeration system.

[0080] Specifically, in addition to the refrigeration system, the water dispenser in this embodiment is also equipped with a heating system, a water treatment system, and a control system.

[0081] The heating system includes a heating element that activates when the user needs hot water, heating the water in the tank to a preset temperature to provide warm drinking water. The water treatment system includes multi-stage filtration devices, such as activated carbon filters, ultrafiltration membranes, or reverse osmosis membranes. These filtration devices remove impurities, odors, residual chlorine, and harmful substances such as heavy metals from the water, providing safe drinking water. The control system typically includes a microprocessor, sensors, a display screen, and buttons. The user can select the desired drinking water temperature via buttons or a touchscreen. The control system activates the corresponding cooling or heating system based on the user's selection and monitors water temperature changes through sensors to ensure the water temperature remains stable within the preset range. Of course, in addition to the systems mentioned above, the water dispenser in this embodiment can also be equipped with other systems to meet the user's actual needs.

[0082] It should be understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. It should be noted that, herein, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0083] The sequence numbers of the above-described embodiments of this utility model are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above descriptions are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A refrigeration system, characterized in that, include: A cold tank, wherein the cold tank is provided with a first inlet, a first outlet and a circulating water inlet; An evaporator pipe is provided inside the cold tank, and both ends of the evaporator pipe are connected to the first inlet and the first outlet, respectively. A refrigeration assembly is disposed outside the cold tank and is connected to the first inlet and the first outlet respectively. The refrigeration assembly is used to drive the cooling medium from the first inlet into the evaporator pipe. A circulation assembly is located outside the cold tank. The circulation assembly includes a circulation pump and a circulation pipe. A first end of the circulation pipe is connected to the circulating water inlet, and a second end of the circulation pipe extends from the first outlet into the cold tank and into the evaporator pipe to a predetermined length. The second end of the circulation pipe is connected to the inside of the cold tank. The circulation pump is located on the circulation pipe and is used to drive the drinking water to be heated to circulate between the circulation pipe and the cold tank.

2. The refrigeration system according to claim 1, characterized in that, Inside the cold tank, the cooling medium flows in the opposite direction to the direction of the drinking water flow in the circulation pipe.

3. The refrigeration system according to claim 2, characterized in that, The first inlet and the first outlet are spaced apart at the top of the cold tank, and the circulating water inlet is located at the bottom of the cold tank.

4. The refrigeration system according to claim 3, characterized in that, The evaporator pipe gradually bends and extends from the first inlet to the first outlet.

5. The refrigeration system according to claim 4, characterized in that, The evaporator pipes are spiral-shaped from top to bottom along the vertical direction of the cold tank.

6. The refrigeration system according to any one of claims 1 to 5, characterized in that, The cold tank is connected to a water inlet pipe, and the water inlet pipe is equipped with a water inlet valve; and / or The cold tank is connected to a water outlet pipe, and the water outlet pipe is equipped with a water outlet valve; and / or The cold tank is connected to an exhaust pipe, and the exhaust pipe is equipped with an exhaust valve; and / or The cold tank is connected to a drain pipe, and a drain valve is installed on the drain pipe.

7. The refrigeration system according to any one of claims 1 to 5, characterized in that, The cold tank is equipped with a water level monitoring device, which is used to monitor the water level of the drinking water. The water level monitoring device includes a water level gauge and / or a water level sensor.

8. The refrigeration system according to any one of claims 1 to 5, characterized in that, The cold tank is equipped with a temperature monitoring device, which is used to monitor the temperature of the drinking water. The temperature monitoring device includes a thermometer and / or a temperature sensor.

9. The refrigeration system according to claim 1, characterized in that, The refrigeration assembly includes a compressor, a condenser, a dryer filter, and a capillary tube. The first end of the compressor is connected to the first outlet, the second end of the compressor is connected to the first end of the condenser, the second end of the condenser is connected to the first end of the dryer filter, the second end of the dryer filter is connected to the first end of the capillary tube, and the second end of the capillary tube is connected to the first inlet.

10. A water dispenser, characterized in that, Includes the refrigeration system as described in any one of claims 1 to 9.

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