Waterway system and purified drinking equipment with refrigeration function

Abstract

The utility model belongs to water supply technical field, specifically discloses a water system and has the pure drinking equipment of refrigeration function. Water system includes refrigeration module and water purification module, the refrigeration module includes the compressor, heat exchange structure, throttling device and evaporimeter that first and last cycle is connected in proper order along the direction of flow of refrigerant, the water purification module includes filter device, the filter device has raw water import, wastewater export and pure water export, the pure water export is connected with the first pure water waterway, the first pure water waterway with the refrigerant heat exchange in heat exchange structure. The water system and pure drinking equipment provided by the utility model can improve the condensing cooling effect of heat exchange structure, reduce the structure cost and improve the structural compactness.

Description

Technical Field

[0001] This utility model relates to the field of water supply technology, and in particular to a water system and a water purification device with a cooling function. Background Technology

[0002] As people pay more and more attention to water safety, drinking water purification equipment with filtration and purification functions is being used more and more widely in people's homes.

[0003] The prior art provides a water purification device with ice-making function, which includes a water purification module and an ice-making module. The ice-making module includes an ice-making chamber and a compressor, condenser, electronic expansion valve and evaporator that are linked by a refrigerant pipeline. The evaporator is set in the ice-making chamber to cool the ice-making chamber and make ice. The water purification module includes a booster pump and an RO membrane filter. The pure water produced by the RO membrane filter is for drinking.

[0004] Existing water purification equipment, while possessing both pure water preparation and ice making functions, typically consists of two separate modules: a water purification module and an ice making module. These modules occupy a relatively large space and have poor structural coherence and compactness, which hinders the miniaturization and cost reduction of water purification equipment. Utility Model Content

[0005] One of the technical problems solved by this utility model is to provide a water system that can effectively solve the problem of poor structural correlation and compactness caused by the separate setting of existing ice-making modules and water purification modules.

[0006] The second technical problem solved by this utility model is to provide a water purification device with a refrigeration function, which can effectively solve the problem of poor structural correlation and compactness caused by the separate setting of the existing ice-making module and water purification module.

[0007] The first technical problem mentioned above is solved by the following technical solution:

[0008] A water system includes a refrigeration module and a water purification module. The refrigeration module includes a compressor, a heat exchange structure, a throttling device, and an evaporator that are sequentially connected in a refrigerant flow direction. The water purification module includes a filtration device with a raw water inlet, a wastewater outlet, and a pure water outlet. The pure water outlet is connected to a first pure water path, which exchanges heat with the refrigerant in the heat exchange structure.

[0009] Compared with the prior art, the water system of this utility model has the following advantages: The water system provided in this embodiment uses water from the first pure water path to exchange heat with the refrigerant in the heat exchange structure. This allows for rapid heat exchange with the refrigerant during cooling, improving the heat exchange effect and ensuring the refrigerant is cooled down. Simultaneously, the first pure water path is a necessary structure for the water purification module. Using water from the first pure water path to exchange heat with the cooling module avoids additional structural and cost increases, reducing costs and improving structural compactness. Furthermore, the water in the first pure water path can absorb heat at the heat exchange structure, thus heating up to become warm water, meeting the user's need for warm drinking water, reducing the cost of heating drinking water, and improving the user experience of the water system. In other words, the water system provided by this utility model effectively couples the cooling module and the water purification module at the heat exchange structure, improving the structural correlation and compactness between the two modules, reducing the overall footprint of the water system, and lowering costs.

[0010] In one embodiment, the wastewater outlet is connected to a wastewater path, and the heat exchange structure has a first heat exchange channel and a second heat exchange channel that exchange heat with each other. The first heat exchange channel is used to introduce refrigerant, and the second heat exchange channel is connected in series to the wastewater path or the first pure water path.

[0011] In one embodiment, the first heat exchange channel includes a first main channel, the second heat exchange channel includes a second main channel, both the first main channel and the second main channel are spiral channels, and the first main channel and the second main channel are coaxially arranged.

[0012] In one embodiment, the heat exchange structure includes a second heat exchange tube and a first heat exchange tube spaced apart and sleeved outside the second heat exchange tube. The inner cavity of the second heat exchange tube forms one of the first heat exchange channel and the second heat exchange channel, and the inner cavity of the first heat exchange tube forms the other of the first heat exchange channel and the second heat exchange channel.

[0013] In one embodiment, the inner cavity of the first heat exchange tube forms the first heat exchange channel, and the second heat exchange channel is connected in series to the wastewater path.

[0014] In one embodiment, the first pure water circuit includes a water storage tank and a pure water outlet pipe connected between the water inlet of the water storage tank and the pure water outlet;

[0015] The pure water outlet pipe exchanges heat with the heat exchange structure, and the water storage tank is located downstream of the pure water outlet pipe; or, the heat exchange structure is installed in the water storage tank, and the heat exchange structure exchanges heat with the tank wall of the water storage tank or the water inside the water storage tank.

[0016] In one embodiment, the heat exchange structure is installed inside the water storage tank;

[0017] Alternatively, the heat exchange structure includes a heat exchange tube and a heat exchanger connected in series along the direction of refrigerant flow. The heat exchange tube is installed inside the water storage tank, the heat exchanger is located outside the water storage tank, and a cooling fan is provided on the outside of the heat exchanger.

[0018] In one embodiment, a liquid level detection device is installed on the water storage tank, the liquid level detection device being used to detect the liquid level in the water storage tank;

[0019] And / or, a temperature detection device is installed inside the water storage tank, the temperature detection device being used to detect the temperature of the water inside the water storage tank.

[0020] In one embodiment, the raw water inlet is connected to a raw water inlet pipe, and the wastewater outlet is connected to the raw water inlet pipe through a wastewater water passage.

[0021] In one embodiment, the wastewater circuit is equipped with a wastewater control valve, which is a proportional valve or an on / off control valve.

[0022] The second technical problem mentioned above is solved by the following technical solution:

[0023] A water purification device with a cooling function includes the water system described above.

[0024] Compared with the prior art, the water purification equipment with refrigeration function described in this utility model has the following advantages: by adopting the above-mentioned water circuit system, the structural correlation and compactness of the refrigeration module and the water purification module of the water purification equipment can be effectively improved. While meeting the cooling and temperature reduction requirements of the refrigerant in the heat exchange structure, the footprint is reduced, the cost is lowered, and the user experience is improved. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the water system provided in Embodiment 1 of the present invention;

[0026] Figure 2 This is a schematic diagram of the water storage tank and heat exchange structure provided in Embodiment 1 of this utility model;

[0027] Figure 3 This is a schematic diagram of the water system provided in Embodiment 2 of this utility model;

[0028] Figure 4 This is a schematic diagram of the water system provided in Embodiment 3 of this utility model;

[0029] Figure 5This is a schematic diagram of the water storage tank and heat exchange structure provided in Embodiment 3 of this utility model.

[0030] Label Explanation:

[0031] 1. Refrigeration module; 11. Compressor; 12. Heat exchange structure; 121. Second heat exchange tube; 1211. Second heat exchange channel; 122. First heat exchange tube; 1221. First heat exchange channel; 13. Throttling device; 14. Evaporator; 15. Capillary tube; 16. Dryer; 17. Ice making chamber;

[0032] 2. Water purification module; 21. Filter device; 22. Booster pump; 23. Pre-filter; 24. Inlet control valve; 25. Raw water tank; 26. First pure water circuit; 261. Pure water outlet pipe; 262. Storage tank; 263. Pure water supply pipe; 264. Pure water control valve; 27. Second pure water circuit; 271. Cooling control valve; 28. Wastewater circuit; 281. Wastewater control valve; 29. ​​Flow meter; 210. Heating element; 220. Water vapor separator; 230. Outlet control valve; 240. Liquid level detection device; 250. Temperature detection device; 260. Water pump; 270. First check valve; 280. Second check valve;

[0033] 3. Drinking water end. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0036] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] Example 1

[0039] This embodiment provides a water system that can simultaneously meet the needs of refrigeration and drinking water preparation, while improving the condensation and heat dissipation effect of the refrigerant during refrigeration, reducing costs, and enhancing the user experience of the water system.

[0040] like Figure 1 and Figure 2 As shown, the water system includes a refrigeration module 1 and a water purification module 2. The refrigeration module 1 includes a compressor 11, a heat exchange structure 12, a throttling device 13, and an evaporator 14, arranged in series along the refrigerant flow direction. The evaporator 14 exchanges heat with the structure to be refrigerated to meet the refrigeration requirements. The water purification module 2 includes a filter device 21, which has a raw water inlet, a wastewater outlet, and a pure water outlet. The raw water inlet is used to introduce water to be filtered. The wastewater outlet is connected to a wastewater path 28, and the pure water outlet is connected to a first pure water path 26. After the water to be filtered passes through the filter element of the filter device 21, pure water and wastewater are produced. The pure water flows through the pure water outlet into the first pure water path 26 and finally flows to the drinking water end 3. The first pure water path 26 exchanges heat with the refrigerant in the heat exchange structure 12.

[0041] In the water system provided in this embodiment, when the refrigeration module 1 is started and running, the high-temperature and high-pressure gaseous refrigerant sprayed from the compressor 11 flows through the heat exchange structure 12. As the heat is absorbed by the water in the first pure water channel 26, the refrigerant is cooled down and becomes a high-pressure and medium-temperature liquid refrigerant. The cooled refrigerant flows to the throttling device 13 and is throttled and cooled by the throttling device 13 to form a low-temperature and low-pressure saturated liquid refrigerant. The saturated liquid refrigerant releases heat and heats up at the evaporator 14, becoming a low-pressure and medium-temperature gaseous refrigerant, and then flows back to the compressor 11 to form a refrigerant refrigeration cycle, thus meeting the refrigeration requirements.

[0042] The water system provided in this embodiment uses water in the first pure water path 26 to exchange heat with the refrigerant in the heat exchange structure 12. This allows for rapid heat exchange with the refrigerant in the heat exchange structure 12 during cooling, improving the heat exchange effect and ensuring the refrigerant is cooled down. Furthermore, the first pure water path 26 is a mandatory structure for the water purification module 2. Using water in the first pure water path 26 to exchange heat with the cooling module 1 reduces or avoids the need for additional structures, lowers costs, and improves structural compactness. Moreover, the pure water in the first pure water path 26 can absorb heat at the heat exchange structure 12, thus heating up to become warm water, meeting the user's need for warm drinking water, reducing the cost of heating drinking water, and improving the user experience of the water system.

[0043] That is, the water system provided by this utility model can effectively realize the coupling of the refrigeration module 1 and the water purification module 2 at the heat exchange structure 12, improve the structural correlation and structural compactness between the refrigeration module 1 and the water purification module 2, reduce the overall footprint of the water system, and reduce costs.

[0044] In one embodiment, the water system includes an ice-making chamber 17, with a pure water outlet connected to a second pure water passage 27. The second pure water passage 27 communicates with the ice-making chamber 17 to supply water to the ice-making chamber 17. An evaporator 14 is disposed inside the ice-making chamber 17 to cool or make ice from the water inside the ice-making chamber 17. This arrangement enables the water system to have cold water storage or ice-making functions, improving the user experience of the water system and facilitating heat exchange between the water and the refrigerant in the evaporator 14.

[0045] A refrigeration control valve 271 is installed on the second pure water circuit 27. The refrigeration control valve 271 is used to control the opening and closing of the second pure water circuit 27, thereby preventing pure water produced by the filter device 21 from entering the ice-making chamber 17 when refrigeration is not required. In another embodiment, the water purification module 2 includes a three-way valve. The first port of the three-way valve is connected to the first pure water circuit 26, the second port of the three-way valve is connected to the second pure water circuit 27, and the third port of the three-way valve is connected to the pure water outlet. The three-way valve controls the third port to be connected to either the first or second port.

[0046] In other embodiments, the evaporator 14 may have a first channel and a second channel. The first channel is connected in series between the throttling device 13 and the inlet of the compressor 11, and the second channel is connected in series to the second pure water path 27. This allows for heat exchange between pure water and refrigerant in the second channel and the first heat exchange path 1221, respectively, thereby achieving refrigerant heating and pure water cooling. In another embodiment, the second pure water path 27 may not be provided, and the user can use pure water from the drinking water terminal 3 to cool the ice-making chamber 17. In yet another embodiment, the refrigeration module 1 can also cool other items or spaces.

[0047] It is worth noting that the structure of the ice-making chamber 17 can adopt the existing structure of the ice-making chamber 17, which is not the focus of this utility model and will not be described in detail here.

[0048] In one embodiment, the refrigeration module 1 includes a dryer 16, which is connected in series between the outlet of the evaporator 14 and the return port of the compressor 11, so that the refrigerant returning to the compressor 11 is all in gaseous state, ensuring the reliable operation of the compressor 11. In other embodiments, a water-vapor separator 220 may also be provided between the return port of the compressor 11 and the outlet of the evaporator 14. The refrigeration module 1 includes a capillary tube 15, which is connected in series between the heat exchange structure 12 and the throttling device 13. The throttling device 13 may be, but is not limited to, other existing devices with throttling and cooling functions such as an electronic expansion valve.

[0049] The raw water inlet is connected to a raw water inlet pipe. The water purification module 2 also includes a booster pump 22 installed on the raw water inlet pipe to drive water flow to the raw water inlet of the filter device 21, thereby ensuring that the filter device 21 has sufficient water flow impact pressure and thus ensuring smooth filtration. An inlet control valve 24 is also installed on the raw water inlet pipe to control the opening and closing of the raw water inlet pipe. The inlet control valve 24 is located upstream of the booster pump 22.

[0050] The filter device 21 is preferably a filter device 21 with an RO filter element, which can effectively ensure the filtration effect. However, it is understood that any existing filter device 21 that can achieve filtration and whose filtered water is directly drinkable can be used in this embodiment. This embodiment does not limit the specific structure and principle of the filter device 21.

[0051] To prevent large particles of impurities in the water from entering the filter device 21, in one embodiment, the water purification module 2 further includes a pre-filter 23. The pre-filter 23 is connected in series between the inlet control valve 24 and the booster pump 22 to perform coarse filtration on the raw water, reducing large particles of impurities in the water flowing to the booster pump 22, preventing clogging of the filter element in the filter device 21, improving filtration efficiency, and reducing the cleaning frequency of the filter device 21. The specific structure of the pre-filter 23 can be set with reference to existing technology, which is not the focus of this embodiment and will not be described in detail here.

[0052] In one embodiment, the first pure water path 26 includes a water storage tank 262 and a pure water outlet pipe 261 connected between the water inlet and the pure water outlet of the water storage tank 262. The heat exchange structure 12 is installed in the water storage tank 262 and exchanges heat with the tank wall or the water inside the water storage tank 262.

[0053] By setting up a water storage tank 262, the pure water prepared by the filtration device 21 can be temporarily stored in the water storage tank 262, reducing the user's waiting time for water and ensuring the stability and reliability of the water output from the drinking water terminal 3. At the same time, since the pure water prepared by the water purification module 2 can be stored in the water storage tank 262, the water purification module 2 can still prepare pure water even if there is no need for drinking at the water outlet. This pure water preparation can then be used to exchange heat with the refrigerant in the heat exchange structure 12, avoiding water waste and better meeting the heat exchange and cooling requirements of the heat exchange structure 12. Furthermore, by using the water storage tank 262 to store pure water, when the user does not need to drink warm water, the water temperature in the water storage tank 262 can be gradually reduced through heat dissipation, better meeting the user's need for low-temperature pure water.

[0054] To improve the heat exchange effect between pure water and refrigerant, in one embodiment, the heat exchange structure 12 is installed inside the water storage tank 262. Thus, the heat exchange structure 12 achieves heat exchange between the pure water and the refrigerant within it through direct contact with the pure water, resulting in a large heat exchange area and high heat exchange efficiency. The heat exchange structure 12 is made of food-grade materials to prevent contamination of the pure water. In other embodiments, the heat exchange structure 12 may also be coiled around the outside of the water storage tank 262.

[0055] In one embodiment, the heat exchange structure 12 is a single-channel coil structure, which reduces the size of the heat exchange structure 12 while increasing the length of the refrigerant channel within the heat exchange structure 12, thereby improving the heat exchange effect on the refrigerant. In other embodiments, the heat exchange structure 12 can also be a heat exchange structure 12 of other shapes or structures, such as a plate heat exchange structure or a serpentine bend heat exchange structure.

[0056] In one embodiment, a first one-way valve 270 is provided on the pure water outlet pipe 261. The first one-way valve 270 only allows water to flow from the pure water outlet to the water storage tank 262, so as to prevent water with a certain temperature in the water storage tank 262 from flowing back into the filter device 21.

[0057] The first pure water circuit 26 also includes a pure water supply pipe 263 connected to the outlet of the water storage tank 262, and the outlet end of the pure water supply pipe 263 is connected to the drinking water end 3. In other embodiments, a faucet or other water outlet can be directly installed on the water storage tank 262 to draw water directly from the water storage tank 262.

[0058] To prevent the prepared pure water from overflowing the storage tank 262, in one embodiment, a level detection element 240 is installed inside the storage tank 262 to detect the liquid level in the storage tank 262. The water system also includes a controller, and the level detection element 240 is communicatively connected to the controller. When the level detection element 240 detects that the liquid level in the storage tank 262 is equal to or higher than a preset level, the controller can trigger an alarm or stop the booster pump 22 to prevent excessive pure water from being injected into the storage tank 262 and causing it to overflow.

[0059] In one embodiment, a bypass pipe is connected to the pure water supply pipe 263, and the other end of the bypass pipe is connected to the pure water outlet pipe 261. This allows the first pure water path 26 and the bypass pipe to cooperate to form a heat exchange circulation pipeline. The bypass pipe is selectively open, and a water pump 260 is installed on the heat exchange circulation pipeline. Thus, when the water level in the water storage tank 262 reaches the preset level and the drinking water end 3 is not opened, the bypass pipe can be opened to make the heat exchange circulation pipeline open, so that water can circulate in the heat exchange circulation pipeline to improve heat dissipation performance.

[0060] In other embodiments, a bypass pipe is connected to the pure water supply pipe 263, and the other end of the bypass pipe is connected to the raw water inlet pipe, thereby connecting the raw water inlet pipe, part of the first pure water path 26, and the bypass pipe to form a heat exchange circulation channel. In this case, it is not necessary to set up an additional water pump 260 to drive the water circulation.

[0061] In one embodiment, a temperature detection element 250 is also provided at the water storage tank 262. The temperature detection element 250 is used to detect the temperature of the water in the water storage tank 262 to prevent the water temperature from being too high and affecting the cooling effect on the refrigerant in the heat exchange structure 12. The temperature detection element 250 is communicatively connected to the controller. When the temperature detection element 250 detects that the water temperature in the water storage tank 262 is greater than or equal to a preset temperature, it controls the heat exchange circulation pipeline to be opened to increase the heat exchange area between the pipeline and the external environment, improve the heat dissipation performance of the water, and thus ensure the cooling effect of the water on the refrigerant.

[0062] It is worth noting that when the water level in the water storage tank 262 is greater than or equal to the preset water level, and the water temperature in the water storage tank 262 is lower than the preset water temperature, the bypass pipe can be in the off state.

[0063] In one embodiment, to reduce water waste, the wastewater outlet is connected to the raw water inlet pipe via wastewater passage 28, so that the raw water inlet pipe, filter device 21, and wastewater passage 28 are sequentially connected to form a circulation loop. This allows wastewater generated during pure water preparation to flow back to the raw water inlet pipe via wastewater passage 28, and then be pumped to the filter device 21 for further filtration, thus preventing water waste. In other embodiments, the outlet of wastewater passage 28 can also be connected to the drain pipe in a user's home, meaning the water discharged from wastewater passage 28 is directly discharged.

[0064] In one embodiment, the water purification module 2 further includes a raw water tank 25, the outlet of which is connected to the inlet of the raw water inlet pipe, and the outlet of the wastewater passage 28 is connected to the inlet of the raw water tank 25. This allows the raw water tank 25 to store raw water, which facilitates the mixing of water introduced into the raw water tank 25 through the wastewater passage 28 and the raw water supply passage, thereby effectively diluting the wastewater.

[0065] To ensure that the water in the water storage tank 262 flows smoothly out through the pure water supply pipe 263, in one embodiment, a water pump 260 is installed on the pure water supply pipe 263. The water pump 260 drives the water in the water storage tank 262 to flow out along the pure water supply pipe 263, thereby ensuring the smoothness and stability of the water flow. The water pump 260 is preferably, but not limited to, a self-priming pump.

[0066] To further enhance the flexibility of the water system, in one embodiment, the water system also includes a heating element 210, which heats the water flowing out of the pure water supply pipe 263 so that the water flowing out of the pure water supply pipe 263 can be hot water with a certain temperature to meet the user's demand for hot water.

[0067] In one embodiment, the heating element 210 is connected in series with the pure water supply pipe 263 to reduce the ease of installation of the heating element 210 and to prevent the heat generated by the heating element 210 from affecting the heat dissipation of the refrigerant at the heat exchange structure 12, so that cooling and heating can operate simultaneously, improving the user experience of the water system. The heating element 210 can be, but is not limited to, an instant heating element, an electric water tank, etc. A water vapor separator 220 is also provided on the pure water supply pipe 263. The water vapor separator 220 is located downstream of the heating element 210 to prevent hot steam from flowing out from the drinking water end 3 and causing scalding to the user.

[0068] Furthermore, the heating element 210 is located downstream of the water pump 260 to ensure that the water flowing to the heating element 210 has a relatively stable pressure and flow rate, and to prevent the high temperature of the water from affecting the operation and service life of the water pump 260, thereby improving the reliability of the water pump 260. A second check valve 280 is installed on the pure water supply pipe 263. The second check valve 280 only allows fluid to flow from the water pump 260 to the heating element 210, preventing the high-temperature water generated by the heating element 210 from flowing back to the water pump 260, thus ensuring the safety and reliability of the water pump 260.

[0069] In another embodiment, the heating element 210 may be disposed inside or outside the water storage tank 262 to heat the water in the water storage tank 262; in another embodiment, the heating element 210 may be a structure such as an electric heating wire or an electric heating film coiled around the pure water supply pipe 263.

[0070] In one embodiment, a flow meter 29 is provided on the pure water supply pipe 263. The flow meter 29 is located between the water pump 260 and the heating element 210. The flow meter 29 is used to detect the water flow rate in the pure water supply pipe 263, thereby determining the power required by the heating element 210 to heat the water to the target temperature.

[0071] In one embodiment, a water outlet control valve 230 is provided on the pure water supply pipe 263. The water outlet control valve 230 is used to control the opening and closing of the pure water supply pipe 263, thereby preventing water from overflowing from the water storage tank 262 and causing turbulent water flow at the drinking water end 3, thus improving the user experience of the water system. The water outlet control valve 230 is located between the flow detection device and the water pump 260.

[0072] This embodiment also provides a water purification device, including the aforementioned water system. By employing the aforementioned water system, the water purification device provided in this embodiment can improve its performance and reduce its cost.

[0073] Example 2

[0074] This embodiment provides a water supply system, and the structure of the water supply system provided in this embodiment is basically the same as that in Embodiment 1, with only some differences in settings. This embodiment will not repeat the structure that is the same as that in Embodiment 1.

[0075] like Figure 3 As shown, in this embodiment, the heat exchange structure 12 has a first heat exchange channel 1221 and a second heat exchange channel 1211 for mutual heat exchange. The first heat exchange channel 1221 is used to introduce refrigerant, and the second heat exchange channel 1211 is connected in series to the first pure water channel 26. That is, in this embodiment, a dual-channel heat exchange structure 12 is used to realize heat exchange between refrigerant and pure water, which is simple in structure and convenient to set up.

[0076] To improve the heat exchange effect between the refrigerant and water, in one embodiment, the first heat exchange channel 1221 includes a first main channel, and the second heat exchange channel 1211 includes a second main channel. Both the first and second main channels are spiral channels, and they are coaxially arranged. Because the first and second main channels are spirally arranged, the overall size of the heat exchange structure 12 can be reduced while the lengths of the first and second heat exchange channels 1221 and 1211 can be extended, thereby increasing the heat exchange area and improving the heat exchange efficiency.

[0077] Specifically, the heat exchange structure 12 includes a first heat exchange tube 122 and a second heat exchange tube 121 that exchange heat with each other. The inner cavity of the first heat exchange tube 122 forms a first heat exchange channel 1221, and the inner cavity of the second heat exchange tube 121 forms a second heat exchange channel 1211. The first heat exchange tube 122 includes a refrigerant main pipe section and a heat exchange main pipe section arranged in a spiral shape, and the heat exchange main pipe section and the refrigerant main pipe section are coaxially arranged. The inner cavity of the refrigerant main pipe section forms a first main channel, and the inner cavity of the heat exchange main pipe section forms a second main channel.

[0078] In one embodiment, the first heat exchange tube 122 is spaced outside the second heat exchange tube 121. This arrangement makes the channel between the second heat exchange tube 121 and the first heat exchange tube 122 a first heat exchange channel 1221. That is, the heat exchange structure 12 is a double-channel sleeve structure. This arrangement allows the refrigerant to exchange heat with pure water through the tube wall of the second heat exchange tube 121 when it flows in the first heat exchange channel 1221, while the refrigerant simultaneously dissipates heat outward through the tube wall of the first heat exchange tube 122, thereby improving the heat exchange efficiency of the refrigerant. It also reduces the overall size of the heat exchange structure 12 and reduces the footprint. At the same time, the double-channel sleeve heat exchange structure increases the heat exchange area between water and refrigerant, improving the heat exchange effect.

[0079] In another embodiment, the multiple spiral segments of the refrigerant main pipe and the multiple spiral segments of the heat exchange main pipe can be alternately arranged in the axial direction of the heat exchange structure 12 to meet the coaxial heat exchange requirements; in another embodiment, the refrigerant main pipe and the heat exchange main pipe can also be integrally arranged with their outer walls in close contact with each other. In other embodiments, the heat exchange structure 12 can also be a plate heat exchanger, a microchannel heat exchanger, or other heat exchanger structures with dual refrigerant channels.

[0080] Furthermore, the first pure water path 26 includes a water storage tank 262 and a pure water outlet pipe 261 connected between the water inlet and the pure water outlet of the water storage tank 262. The pure water outlet pipe 261 exchanges heat with the heat exchange structure 12, and the water storage tank 262 is located downstream of the pure water outlet pipe 261. By setting up a water storage tank 262, the pure water prepared by the filtration device 21 can be temporarily stored in the water storage tank 262, reducing the user's waiting time for water and ensuring the stability and reliability of the water output from the drinking water terminal 3. At the same time, since the pure water prepared by the water purification module 2 can be stored in the water storage tank 262, the water purification module 2 can still prepare pure water even when there is no need to drink it. This pure water preparation can then be used to exchange heat with the refrigerant in the heat exchange structure 12, avoiding water waste while meeting the heat exchange and cooling requirements of the heat exchange structure 12. Furthermore, by using the water storage tank 262 to store pure water, when the user does not need to drink warm water, the water temperature in the water storage tank 262 can be gradually reduced through heat dissipation, better meeting the user's need for low-temperature pure water.

[0081] The remaining structure of the water system can be set up with reference to Embodiment 1, and will not be described again here.

[0082] This embodiment also provides a water purification device, including the aforementioned water system. By employing the aforementioned water system, the water purification device provided in this embodiment can improve its performance and reduce its cost.

[0083] Example 3

[0084] This embodiment provides a water system, and the basic structure of the water system provided in this embodiment is the same as that in Embodiment 1, with only some differences in settings. This embodiment will not repeat the same content as in Embodiment 1.

[0085] like Figure 4 and Figure 5 As shown, in this embodiment, the heat exchange structure 12 has a first heat exchange channel 1221 and a second heat exchange channel 1211 that exchange heat with each other. The first heat exchange channel 1221 is used to introduce refrigerant, and the second heat exchange channel 1211 is connected in series to the wastewater channel 28. That is, in this embodiment, the wastewater discharged from the filter device 21 also participates in the heat exchange of the heat exchange structure 12, thereby improving the heat exchange effect on the refrigerant in the heat exchange structure 12.

[0086] In this embodiment, the first pure water path 26 has a pure water heat exchange position for heat exchange with the refrigerant in the heat exchange structure 12. A pure water control valve 264 is provided on the first pure water path 26, which can control the opening and closing of the first pure water path 26. Therefore, in scenarios where there is no water demand at the drinking water end 3 or other scenarios where water is not required to flow through the first pure water path 26, the pure water control valve 264 can be closed, so that all the water flowing out of the filter device 21 can flow out through the wastewater path 28 to meet the heat dissipation requirements of the heat exchange structure 12 and improve the user experience.

[0087] In one embodiment, the first pure water path 26 includes a water storage tank 262 and a pure water outlet pipe 261 connected between the water inlet and the pure water outlet of the water storage tank 262. The heat exchange structure 12 is installed in the water storage tank 262 and exchanges heat with the tank wall or the water inside the water storage tank 262.

[0088] The water storage tank 262 is designed to store water when the first pure water channel 26 or wastewater channel 28 cannot output water, ensuring the normal operation of the water system while avoiding waste caused by direct discharge of water. At the same time, by storing water in the water storage tank 262, the heat exchange area between the water and the heat exchange structure 12 can be increased, which can improve the heat exchange efficiency of the refrigerant in the water storage tank 262 and the heat exchange structure 12, thereby improving the heat exchange effect on the refrigerant. If there is no water demand at the drinking water end 3, the heat can also be slowly dissipated to meet the heat dissipation requirements.

[0089] Specifically, when the liquid level in the water storage tank 262 detected by the liquid level detection device 240 rises to the preset liquid level and the drinking water end 3 is not opened, the controller controls the pure water control valve 264 to close; if the refrigeration module 1 is running at this time, the water purification module 2 is started, so that the water flows directly from the wastewater path 28, so that the wastewater exchanges heat with the refrigerant in the heat exchange structure 12.

[0090] In other embodiments, the heat exchange structure 12 is provided with three heat exchange channels. One heat exchange channel is used to introduce refrigerant, another heat exchange channel is connected to the first pure water channel 26, and the third heat exchange channel is connected to the wastewater channel 28. That is, pure water and wastewater exchange heat with the refrigerant in the heat exchange structure 12. Exemplarily, the heat exchange structure 12 includes an inner sleeve, a middle sleeve, and an outer sleeve arranged sequentially from the inside to the outside. One of the inner sleeve and the outer sleeve is connected in series to the wastewater channel 28, and the other is connected in series to the first pure water channel 26. The middle sleeve is connected in series between the compressor 11 and the throttling device 13, thereby better meeting the heat exchange requirements through the arrangement of three sleeves.

[0091] In one embodiment, the heat exchange structure 12 is located inside the water storage tank 262, so that pure water can at least partially submerge the heat exchange structure 12, thereby enhancing the heat exchange effect. Furthermore, the first heat exchange channel 1221 is arranged to surround the second heat exchange channel 1211, so that when heat exchange occurs between the wastewater in the first heat exchange channel 1221 and the second heat exchange channel 1211, the outer wall of the first heat exchange channel 1221 exchanges heat with the water in the water storage tank 262, improving the cooling effect on the refrigerant.

[0092] Wastewater passage 28 has a wastewater heat exchange position that exchanges heat with heat exchange structure 12. Wastewater control valve 281 is installed on wastewater passage 28 to control the opening and closing of wastewater passage 28. Wastewater control valve 281 is located upstream of the wastewater heat exchange position. The installation of wastewater control valve 281 facilitates the inspection and maintenance of wastewater passage 28 and water purification module 2; at the same time, it also prevents water in filter device 21 from seeping out of wastewater passage 28 when filter device 21 is not in operation.

[0093] In one embodiment, to reduce water waste, the wastewater outlet is connected to the raw water inlet pipe via the wastewater passage 28. Specifically, the water purification module 2 also includes a raw water tank 25, the outlet of which is connected to the inlet of the raw water inlet pipe, and the outlet of the wastewater passage 28 is connected to the inlet of the raw water tank 25. This allows the raw water tank 25 to store raw water, facilitating the mixing of water supplied to the raw water tank 25 through the wastewater passage 28 and the raw water supply passage, thereby effectively diluting the wastewater.

[0094] Example 5

[0095] This embodiment provides a water system, and the basic structure of the water system provided in this embodiment is the same as that in Embodiment 1, with only some differences in settings. This embodiment will not repeat the same content as in Embodiment 1.

[0096] In this embodiment, the heat exchange structure 12 includes a heat exchange tube and a heat exchanger arranged in series along the refrigerant flow direction. The heat exchange tube is installed inside the water storage tank 262, and the heat exchanger is located outside the water storage tank 262. A cooling fan is provided on the outside of the heat exchanger.

[0097] In this embodiment, part of the heat exchange structure 12 is located inside the water storage tank 262 to exchange heat with pure water, while part of the heat exchange structure 12 is located outside the water storage tank 262 to use a cooling fan for auxiliary heat dissipation, thereby avoiding the problem of insufficient cooling of the refrigerant due to using only pure water to cool the refrigerant.

[0098] It is worth noting that the heat exchange tube can be a single coil heat exchange structure, and its specific settings can refer to the settings in Embodiment 1. The heat exchange tube can also be a shell-and-tube structure, and its specific settings can adopt the settings in Embodiment 2. This embodiment will not elaborate on these aspects further.

[0099] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0100] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A waterway system, characterized in that, The system includes a refrigeration module (1) and a water purification module (2). The refrigeration module (1) includes a compressor (11), a heat exchange structure (12), a throttling device (13), and an evaporator (14) that are connected sequentially along the refrigerant flow direction. The water purification module (2) includes a filter device (21) with a raw water inlet, a wastewater outlet, and a pure water outlet. The pure water outlet is connected to a first pure water path (26), which exchanges heat with the refrigerant in the heat exchange structure (12).

2. The water system according to claim 1, characterized in that, The wastewater outlet is connected to a wastewater channel (28), and the heat exchange structure (12) has a first heat exchange channel (1221) and a second heat exchange channel (1211) for mutual heat exchange. The first heat exchange channel (1221) is used to introduce refrigerant, and the second heat exchange channel (1211) is connected in series to the wastewater channel (28) or the first pure water channel (26).

3. The water system according to claim 2, characterized in that, The first heat exchange channel (1221) includes a first main channel, and the second heat exchange channel (1211) includes a second main channel. Both the first main channel and the second main channel are spiral channels, and the first main channel and the second main channel are coaxially arranged.

4. The water system according to claim 3, characterized in that, The heat exchange structure (12) includes a second heat exchange tube (121) and a first heat exchange tube (122) spaced outside the second heat exchange tube (121). The inner cavity of the second heat exchange tube (121) forms one of the first heat exchange channel (1221) and the second heat exchange channel (1211), and the inner cavity of the first heat exchange tube (122) forms the other of the first heat exchange channel (1221) and the second heat exchange channel (1211).

5. The water system according to claim 4, characterized in that, The inner cavity of the first heat exchange tube (122) forms the first heat exchange channel (1221), and the second heat exchange channel (1211) is connected in series to the wastewater channel (28).

6. The water system according to any one of claims 1-5, characterized in that, The first pure water circuit (26) includes a water storage tank (262) and a pure water outlet pipe (261) connected between the water inlet of the water storage tank (262) and the pure water outlet; The pure water outlet pipe (261) exchanges heat with the heat exchange structure (12), and the water storage tank (262) is located downstream of the pure water outlet pipe (261); or, the heat exchange structure (12) is at least partially installed in the water storage tank (262), and the heat exchange structure (12) exchanges heat with the tank wall of the water storage tank (262) or the water inside the water storage tank (262).

7. The water system according to claim 6, characterized in that, The heat exchange structure (12) is installed inside the water storage tank (262); Alternatively, the heat exchange structure (12) includes a heat exchange tube and a heat exchanger connected in series along the direction of refrigerant flow. The heat exchange tube is installed inside the water storage tank (262), and the heat exchanger is located outside the water storage tank (262). A cooling fan is provided on the outside of the heat exchanger.

8. The water system according to claim 6, characterized in that, A liquid level detection device (240) is installed on the water storage tank (262), and the liquid level detection device (240) is used to detect the liquid level in the water storage tank (262); And / or, a temperature detection element (250) is installed inside the water storage tank (262), the temperature detection element (250) being used to detect the temperature of the water inside the water storage tank (262).

9. The water system according to any one of claims 1-5, characterized in that, The raw water inlet is connected to a raw water inlet pipe, and the wastewater outlet is connected to the raw water inlet pipe through a wastewater water passage (28).

10. A water purification device with a cooling function, characterized in that, Including the waterway system as described in any one of claims 1-9.

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