Waterway system and purifying drinking equipment

Abstract

The utility model belongs to water supply technical field, specifically discloses a water system and pure drinking equipment. Water system includes heat exchanger, filter equipment and bypass pipe, and heat exchanger has the refrigerant heat exchange channel, and the pure water outlet of filter equipment is connected with pure water waterway, and pure water waterway has the heat exchange position that can exchange heat with refrigerant heat exchange channel, the both ends of bypass pipe are connected in pure water waterway and are provided in parallel with heat exchange position, to make bypass pipe and part pure water waterway link to form heat exchange circulation loop, and heat exchange circulation loop can be selectively conducted and is provided with water pump. The utility model can adopt pure water to realize refrigerant heat dissipation cooling, and can improve the heat dissipation performance through the flow of pure water in heat exchange circulation loop, improve the use experience of water system and pure drinking equipment.

Description

Technical Field

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

[0002] With the development of science and technology and the improvement of people's living standards, people are paying more and more attention to water safety, and water purification equipment with water purification supply function is being used more and more widely in home life.

[0003] To better meet user needs, some water purification devices have an ice-making function. That is, the water purification device includes a pure water preparation module and a refrigeration module. The refrigeration module includes a compressor, a heat exchanger, a throttling device, and an evaporator arranged in series along the refrigerant flow direction in a refrigeration chamber. The evaporator is located in the refrigeration chamber to cool the water in the refrigeration chamber to form ice. The heat exchanger uses a fan to promote the flow of external air through the heat exchanger to achieve heat dissipation and cooling of the refrigerant inside the heat exchanger.

[0004] Because the refrigerant temperature exiting the compressor is relatively high, and the fan size is usually small due to the overall size limitation of the water purifier, and the air vent size on the water purifier casing is also small, the flow of cold air to the heat exchanger is insufficient. This affects the cooling effect of the refrigerant at the heat exchanger, affects the smooth progress of the ice-making process, and is also not conducive to the long-term operation of the ice-making module. At the same time, using a fan for heat dissipation increases the footprint of the ice-making module, which is not conducive to the miniaturization of the water purifier. 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 problems of poor refrigerant cooling and heat dissipation at the heat exchanger due to the use of fan cooling in existing water systems, and the large space occupied by the refrigeration module.

[0006] The second technical problem solved by this invention is to provide a water purification device that can effectively solve the problems of poor refrigerant cooling and heat dissipation at the heat exchanger due to the use of fan cooling in existing water systems, and the large space occupied by the refrigeration module.

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

[0008] A water system includes a heat exchanger, a filter device, and a bypass pipe. The heat exchanger has a refrigerant heat exchange channel, and the filter device has a raw water inlet, a pure water outlet, and a wastewater outlet. The pure water outlet is connected to a pure water path, and the pure water path has a heat exchange position that can exchange heat with the refrigerant heat exchange channel.

[0009] Both ends of the bypass pipe are connected to the pure water circuit and are arranged in parallel with the heat exchange position, so that the bypass pipe and part of the pure water circuit are connected to form a heat exchange circulation loop. The heat exchange circulation loop can be selectively energized, and a water pump is provided on the heat exchange circulation loop.

[0010] Compared with the prior art, the water system of this utility model has the following advantages: By setting a heat exchange position between the pure water system and the refrigerant heat exchange channel, when pure water is present in the pure water system and refrigerant is flowing in the refrigerant heat exchange channel, the pure water can exchange heat with the refrigerant in the refrigerant heat exchange channel, reducing the refrigerant temperature to achieve heat dissipation and cooling, ensuring the cooling effect of the refrigerant on the refrigeration structure. Furthermore, the pure water can absorb heat from the refrigerant and heat up, thereby meeting the user's demand for warm water. At the same time, it can reduce the energy consumption required to heat pure water to form hot water, improving the user experience of the water system while also reducing its energy consumption. By setting a bypass pipe in parallel with the heat exchange position, pure water can pass through... The cooling effect is achieved by the flow of pure water in the heat exchange loop, avoiding the high temperature of pure water at the heat exchange location that would affect the heat exchange effect on the refrigerant. While ensuring the cooling effect on the refrigerant, it can reduce the amount of pure water prepared for heat exchange, so that the filtration device does not need to keep filtering during heat exchange. This further ensures the performance of the water system and reduces the energy consumption of the water system, thereby reducing the operating cost of the water system. Furthermore, since pure water can achieve heat exchange with the refrigerant by circulating in the heat exchange loop, pure water can still be prepared and the refrigerant can be cooled even when there is no need for drinking water output. Moreover, the prepared pure water does not need to be discharged to avoid waste, saving water resources and improving the flexibility of heat exchange with the refrigerant.

[0011] In one embodiment, a heat sink is provided on the bypass pipe.

[0012] In one embodiment, the heat sink includes heat dissipation fins mounted on the bypass pipe, and the heat dissipation fins are spaced apart along the extension direction of the bypass pipe.

[0013] In one embodiment, a first one-way valve is provided on the pure water circuit. The first one-way valve is located between the pure water outlet and the outlet of the bypass pipe. The first one-way valve only allows water to flow from the pure water outlet to the heat exchange location.

[0014] And / or, a second one-way valve is provided on the bypass pipe, wherein the first one-way valve only allows water to flow from the inlet end of the bypass pipe to the outlet end of the bypass pipe.

[0015] In one embodiment, the water pump is located in the pure water circuit and downstream of the heat exchange location.

[0016] In one embodiment, the pure water circuit includes a pure water tank, a pure water outlet pipe connected between the pure water outlet and the water tank inlet of the pure water tank, and a pure water supply pipe connected to the water tank outlet of the pure water tank. The two ends of the bypass pipe are respectively connected to the pure water outlet pipe and the pure water supply pipe, and the heat exchange position is formed at the pure water tank or the pure water outlet pipe.

[0017] Alternatively, the heat exchanger has a water heat exchange channel, which is connected in series to the pure water circuit, and the heat exchange location is formed at the water heat exchange channel.

[0018] In one embodiment, a liquid level detection device is provided inside the pure water tank, and the liquid level detection device is used to detect the liquid level inside the pure water tank;

[0019] And / or, a temperature detection element is provided at the heat exchange location, the temperature detection element being used to detect the water temperature at the heat exchange location.

[0020] In one embodiment, the water system further includes a cooling chamber, a compressor, a throttling device, and an evaporator. The compressor, the refrigerant heat exchange channel, the throttling device, and the evaporator are connected sequentially in a loop along the refrigerant flow direction. The pure water outlet is connected to the cooling chamber to supply water to the cooling chamber, and the evaporator is used to cool the water in the cooling chamber.

[0021] The second technical problem mentioned above is solved by the following technical solution:

[0022] A water purification device, comprising the water system as described above.

[0023] Compared with the prior art, the water purification equipment described in this utility model has the following advantages: by adopting the above-mentioned water system, the heat dissipation and cooling effect of the refrigerant can be improved, and it is also conducive to the heating of pure water to form warm water, improving the structural compactness of the water system, reducing the footprint, and reducing the cost and energy consumption of the water system. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the water system provided in Embodiment 1 of the present invention;

[0025] Figure 2 This is a cross-sectional view of the pure water tank and heat exchanger provided in Embodiment 1 of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of a water system provided in another embodiment of the present invention;

[0027] Figure 4 A flowchart of the control method provided in Embodiment 3 of this utility model;

[0028] Figure 5 A flowchart of the control method provided in Embodiment 4 of this utility model;

[0029] Figure 6 A flowchart of the control method provided in Embodiment Six of this utility model;

[0030] Label Explanation:

[0031] 1. Water purification module; 11. Pure water circuit; 111. Pure water outlet pipe; 112. Pure water tank; 113. Pure water supply pipe; 12. Bypass pipe; 13. Water pump; 14. Three-way valve; 15. First check valve; 16. Second check valve; 17. Filter device; 18. Pre-filter; 19. Inlet control valve; 100. Radiator; 110. Raw water tank; 120. Heating element; 130. Temperature detection device; 140. Liquid level detection device; 150. Flow meter; 160. Water vapor separator; 170. Third check valve; 180. Wastewater pipe; 190. Wastewater control valve; 1100. Booster pump;

[0032] 2. Refrigeration module; 21. Heat exchanger; 211. Refrigerant heat exchange channel; 22. Compressor; 23. Throttling device; 24. Evaporator; 25. Refrigeration chamber; 26. Refrigeration water supply pipe; 27. Refrigeration water inlet valve; 28. Dryer. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] Example 1

[0038] like Figure 1 and Figure 2 As shown, this embodiment provides a water system including a heat exchanger 21 and a water purification module 1. The water purification module 1 includes a filter device 17 and a bypass pipe 12. The heat exchanger 21 has a refrigerant heat exchange channel 211 for introducing refrigerant. The filter device 17 has a raw water inlet, a pure water outlet, and a wastewater outlet. A pure water channel 11 is connected to the pure water outlet, and the pure water channel 11 has a heat exchange position capable of exchanging heat with the refrigerant heat exchange channel 211. Both ends of the bypass pipe 12 are connected to the pure water channel 11 and are arranged in parallel with the heat exchange position, so that the bypass pipe 12 and part of the pure water channel 11 are connected to form a heat exchange circulation loop. The heat exchange circulation loop can be selectively circulated, and a water pump 13 is installed on the heat exchange circulation loop.

[0039] The water system provided in this embodiment, by setting a heat exchange position on the pure water channel 11 for heat exchange with the refrigerant heat exchange channel 211, allows the pure water to exchange heat with the refrigerant in the refrigerant heat exchange channel 211 when pure water is present in the pure water channel 11 and refrigerant is flowing in the refrigerant heat exchange channel 211. This reduces the refrigerant temperature, achieving heat dissipation and cooling, ensuring the refrigerant's cooling effect on the refrigeration structure. Furthermore, the pure water can absorb heat from the refrigerant and heat up, thus meeting the user's demand for warm water. Simultaneously, it reduces the energy consumption required to heat pure water to form hot water, improving the user experience of the water system while also reducing its energy consumption. By setting a bypass pipe 12 in parallel with the heat exchange position, pure water can pass through the heat exchange channel 211... The flow in the heat exchange loop achieves heat dissipation and cooling, avoiding the high temperature of pure water at the heat exchange location from affecting the heat exchange effect on the refrigerant. While ensuring the cooling effect on the refrigerant, it reduces the amount of pure water prepared for heat exchange, so that the filter device 17 does not need to keep filtering during heat exchange. This further ensures the performance of the water system while reducing the energy consumption of the water system, thereby reducing the operating cost of the water system. Furthermore, since pure water can achieve heat exchange with the refrigerant by circulating in the heat exchange loop, pure water can still be prepared and the refrigerant can be cooled even when there is no demand for drinking water output. Moreover, the prepared pure water does not need to be discharged to avoid waste, saving water resources and improving the flexibility of heat exchange with the refrigerant.

[0040] In one embodiment, the water system includes a refrigeration module 2, which includes the aforementioned heat exchanger 21, a compressor 22, a throttling device 23, an evaporator 24, and a refrigeration chamber 25. The compressor 22, refrigerant heat exchange channel 211, throttling device 23, and evaporator 24 are connected end-to-end along the refrigerant flow direction to form a refrigerant circulation loop. The evaporator 24 is used to exchange heat with the water in the refrigeration chamber 25 to cool the environment inside the refrigeration chamber 25. This also enables the water system to have an ice-making function, improving the user experience.

[0041] In other embodiments, the refrigeration module 2 may include a compressor 22, a throttling device 23, and an evaporator 24. The compressor 22, the refrigerant heat exchange channel 211, the throttling device 23, and the evaporator 24 are connected end to end along the refrigerant flow direction to form a refrigerant circulation loop. The evaporator 24 is used to exchange heat with the external environment to meet the cooling needs of the external environment.

[0042] In one embodiment, the pure water outlet is connected to a cooling water supply pipe 26, which is connected to the cooling chamber 25 to supply water to the cooling chamber. This ensures that the water used for ice making is pure water filtered by the filtration device 17, eliminating the need for the user to manually add water to the cooling chamber, thus improving the automation of ice making and enhancing the user experience of the water system. In other embodiments, the user can also collect pure water flowing from the pure water pipe 11 from the drinking water outlet and add it to the cooling chamber 25 to meet their ice-making needs.

[0043] It is worth noting that the structure of the refrigeration chamber can adopt the existing structure of the refrigeration chamber, which is not the focus of this utility model and will not be described in detail here.

[0044] In one embodiment, a cooling water inlet valve 27 is provided on the cooling water supply pipe 26. The cooling water inlet valve 27 controls the opening and closing of the cooling water supply pipe 26. Thus, when the cooling water inlet valve 27 is open, the pure water produced by the filter device 17 enters the cooling chamber through the cooling water supply pipe 26. When the cooling water inlet valve 27 is closed and the filter device 17 produces pure water, the pure water flows into the pure water path 11.

[0045] In another embodiment, a pure water control valve can be installed on the pure water circuit 11 to independently control the on / off state of the pure water circuit 11. In yet another embodiment, a three-way structure can be provided, with its three ports connected to the pure water outlet, the inlet of the pure water circuit 11, and the inlet of the cooling water supply pipe 26, respectively. This allows the three-way structure to selectively connect the pure water outlet to either the pure water circuit 11 or the cooling water supply pipe 26.

[0046] In one embodiment, the refrigeration module 2 includes a dryer 28, which is connected in series between the outlet of the evaporator 24 and the return port of the compressor 22, so that the refrigerant returning to the compressor 22 is always in gaseous state, ensuring the reliable operation of the compressor 22. In other embodiments, a gas-liquid separator may also be provided between the return port of the compressor 22 and the outlet of the evaporator 24. The refrigeration module 2 includes a capillary tube, which is connected in series between the heat exchanger 21 and the throttling device 23. The throttling device 23 may be, but is not limited to, other existing devices with throttling and cooling functions such as an electronic expansion valve.

[0047] In one embodiment, a first one-way valve 15 is provided on the pure water circuit 11. The first one-way valve 15 is located between the pure water outlet and the outlet of the bypass pipe 12. The first one-way valve 15 only allows water to flow from the pure water outlet to the heat exchange position, thereby preventing the water flowing out from the outlet of the bypass pipe 12 from flowing back into the filter device 17.

[0048] In one embodiment, a second one-way valve 16 is provided on the bypass pipe 12. The second one-way valve 16 only allows water to flow from the inlet end of the bypass pipe 12 to the outlet end of the bypass pipe 12, thereby preventing pure water flowing out of the pure water outlet from flowing directly through the bypass pipe 12 to the downstream position of the pure water circuit 11.

[0049] To improve the user experience of the water system, in one embodiment, the pure water circuit 11 includes a pure water tank 112, a pure water outlet pipe 111 connecting the pure water outlet and the water tank inlet of the pure water tank 112, and a pure water supply pipe 113 connecting the water tank outlet of the pure water tank 112. The two ends of the bypass pipe 12 are respectively connected to the pure water outlet pipe 111 and the pure water supply pipe 113. The pure water tank 112 or the pure water outlet pipe 111 has a heat exchange location. By setting up the pure water tank 112, the pure water prepared by the filtration device 17 can be temporarily stored in the pure water tank 112, reducing the user's waiting time for water and ensuring the stability and reliability of the purified drinking water output. Simultaneously, by setting up the pure water tank 112, the water flow rate in the heat exchange circulation loop can be increased, thereby improving the heat exchange circulation effect and enhancing the cooling effect of the refrigerant condensation.

[0050] In other embodiments, the pure water path 11 is a tubular structure, and the heat exchanger 21 has a water heat exchange channel that exchanges heat with the refrigerant heat exchange channel 211. The water heat exchange channel is connected in series to the pure water path 11, thereby achieving heat exchange with the refrigerant through the flow of pure water in the water heat exchange channel, i.e., a heat exchange position is formed at the water heat exchange channel. The heat exchanger 21 can be, but is not limited to, a shell-and-tube heat exchanger, a plate heat exchanger, or a microchannel heat exchanger, etc.

[0051] In one embodiment, a heat exchange location is formed at the pure water tank 112, where the heat exchanger 21 achieves heat exchange through contact with the tank wall of the pure water tank 112 or through contact with the water inside the pure water tank 112, increasing the heat exchange area between the heat exchanger 21 and the pure water passage 11 and improving the heat exchange effect. In other embodiments, the heat exchange location can also be set at the pure water outlet pipe 111, such as... Figure 3 As shown.

[0052] In one embodiment, the water pump 13 is installed in the pure water supply pipe 113, so that when the heat exchange circulation loop is open, the water pump 13 drives the water to flow in the heat exchange circulation loop, and when the heat exchange circulation loop is not open, the water pump 13 drives the pure water to the drinking water end, thereby ensuring the stability and reliability of the water output at the drinking water end. The water pump 13 is preferably, but not limited to, a self-priming pump.

[0053] To achieve selective conduction of the heat exchange circulation loop, in one embodiment, a three-way valve 14 is installed on the pure water circuit 11. The three-way valve 14 is located downstream of the heat exchange location. The first and second ports of the three-way valve 14 are connected in series to the pure water circuit 11, and the inlet end of the bypass pipe 12 is connected to the third port of the three-way valve 14. The three-way valve 14 controls the selective opening and closing of the first port and the second or third port. Specifically, the three-way valve 14 is located upstream of the water pump 13. In another embodiment, control valves can be installed on the pure water supply pipe 113 and the bypass pipe 12 respectively to control the flow direction of the water in the bypass pure water supply pipe 113.

[0054] In one embodiment, a radiator 100 is provided on the bypass pipe 12. The radiator 100 is used to enhance the heat dissipation of the water flow at the bypass pipe 12, thereby further reducing the temperature of the water flow returning to the heat exchange position and improving the heat dissipation effect of the water flow in the heat exchange circulation loop, thereby ensuring the cooling effect of the water flow on the refrigerant.

[0055] In one embodiment, the heat sink 100 may be provided with heat dissipation fins on the wall of the bypass pipe 12, and multiple heat dissipation fins may be spaced apart along the extension direction of the bypass pipe 12. In another embodiment, the heat sink 100 may also be a heat sink arranged in series at the bypass pipe 12. In other embodiments, the heat sink 100 may also be a semiconductor cooling structure.

[0056] To determine whether the heat exchange circulation loop needs to be activated, in one embodiment, a temperature sensor 130 is installed at the heat exchange location, and the temperature sensor 130 is used to detect the temperature of the water in the pure water path 11. The water system also includes a controller, and the temperature sensor 130 is communicatively connected to the controller. When the temperature sensor 130 detects that the water temperature at the heat exchange location is greater than or equal to a preset temperature, the heat exchange circulation loop should be activated to reduce the water flow temperature at the heat exchange location.

[0057] Specifically, the temperature sensor 130 is installed on the pure water tank 112 to improve the ease of installation of the temperature sensor 130. At the same time, it can reliably detect the water temperature in the pure water tank 112 even when the heat exchange circulation loop is not connected. Furthermore, the temperature sensor 130 is installed at the bottom of the pure water tank 112.

[0058] In one embodiment, the water tank outlet is located at the bottom of the pure water tank 112, so that all the water in the pure water tank 112 can flow out through the water tank outlet. This ensures smooth water flow in the heat exchange circulation loop and effective water replacement in the pure water tank 112. It also facilitates emptying the pure water tank 112 when the water system is not in use, thus avoiding bacterial growth and odor caused by long-term water accumulation in the pure water tank 112.

[0059] To prevent the prepared pure water from overflowing the pure water tank 112, in one embodiment, a liquid level detection device 140 is installed inside the pure water tank 112. The liquid level detection device 140 is used to detect the liquid level in the pure water tank 112. The liquid level detection device 140 is communicatively connected to the controller. When the liquid level in the pure water tank 112 detected by the liquid level detection device rises to a preset liquid level and the water supply end is not opened, the controller controls the heat exchange circulation loop to start.

[0060] To further enhance the flexibility of the water system, in one embodiment, the water system also includes a heating element 120, which heats the water flowing out of the pure water supply pipe 113 so that the water flowing out of the pure water supply pipe 113 can be hot water with a certain temperature to meet the user's demand for hot water.

[0061] In one embodiment, the heating element 120 is connected in series with the pure water supply pipe 113 to reduce the ease of installation of the heating element 120 and to prevent the heat generated by the heating element 120 from affecting the heat dissipation of the refrigerant at the heat exchanger 21, so that cooling and heating can operate simultaneously, improving the user experience of the water system. The heating element 120 can be, but is not limited to, an instant heating element, an electric water tank, etc. A water vapor separator 160 is also provided on the pure water supply pipe 113. The water vapor separator 160 is located downstream of the heating element 120 to prevent hot steam from flowing out from the purified drinking water end and causing scalding to the user.

[0062] In another embodiment, the heating element 120 may be disposed inside or outside the pure water tank 112 to heat the water in the pure water tank 112; in another embodiment, the heating element 120 may be a structure such as an electric heating wire or an electric heating film coiled around the pure water supply pipe 113.

[0063] Furthermore, the heating element 120 is located downstream of the water pump 13 to ensure that the water flowing to the heating element 120 has a relatively stable pressure and flow rate, and to avoid the high temperature of the water affecting the operation and service life of the water pump 13, thereby improving the reliability of the water pump 13.

[0064] A third check valve 170 is installed on the pure water outlet pipe 111. The third check valve 170 is located upstream of the heating element 120. The third check valve 170 only allows water from the pure water outlet pipe 111 to flow to the heating element 120, so as to prevent the heated water from flowing back to the water pump 13 and causing damage to the water pump 13. Specifically, the check valve is located between the three-way valve 14 and the heating element 120.

[0065] In one embodiment, a flow meter 150 is provided on the pure water supply pipe 113. The flow meter 150 is located between the water pump 13 and the heating element 120. The flow meter 150 is used to detect the water flow rate in the pure water supply pipe 113, thereby determining the power required by the heating element 120 to heat the water to the target temperature.

[0066] The raw water inlet is connected to a raw water inlet pipe. The water purification module 1 also includes a booster pump 1100, which is installed in the raw water inlet pipe and drives the water flow to the raw water inlet of the filter device 17, thereby ensuring that the filter device 17 has sufficient water flow impact pressure to ensure smooth filtration. An inlet control valve 19 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 19 is located upstream of the booster pump 1100.

[0067] The filter device 17 is preferably a filter device 17 with an RO filter element, which can effectively ensure the filtration effect. However, it is understood that any existing filter device 17 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 17.

[0068] To prevent large particles of impurities in the water from entering the filter device 17 and clogging the filter element, in one embodiment, the water purification module 1 further includes a pre-filter 18. The pre-filter 18 is connected in series between the inlet control valve 19 and the booster pump 1100 to perform coarse filtration on the raw water, reducing large particles of impurities in the water flowing to the booster pump 1100, improving filtration efficiency, and reducing the cleaning frequency of the filter device 17. The specific structure of the pre-filter 18 can be set with reference to existing technology, which is not the focus of this embodiment and will not be described in detail here.

[0069] In one embodiment, the wastewater outlet is connected to the raw water inlet pipe via a wastewater pipe 180, thereby reducing water waste. In other embodiments, the end of the wastewater pipe 180 can also be connected to the drain pipe in the user's home, meaning the water discharged from the wastewater pipe 180 is directly discharged. Further, the water purification module 1 includes a raw water tank 110, the outlet end of the wastewater pipe 180 is connected to the raw water tank 110, and the raw water inlet of the filter device 17 is connected to the outlet of the raw water tank 110, thereby enhancing the mixing of wastewater and raw water and better diluting the wastewater. A wastewater control valve 190 is provided on the wastewater pipe 180 to control the on / off state of the wastewater pipe 180.

[0070] 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.

[0071] Example 2

[0072] This embodiment provides a control method for a water system, which is applied to the control of the water system described in the above embodiment.

[0073] The control method provided in this embodiment includes:

[0074] When refrigerant flows through the refrigerant heat exchange channel 211 and the outlet of the pure water circuit 11 is closed, the heat exchange circulation loop is controlled to open and the water pump 13 is controlled to run.

[0075] That is, the control method provided in this embodiment indicates that there is a need for cooling the refrigerant when there is refrigerant flow in the refrigerant heat exchange channel 211. When the outlet of the pure water channel 11 is closed, the water flow can be controlled to flow in the heat exchange circulation loop, which can enhance the heat dissipation of the water flow and improve the cooling effect of the water on the refrigerant.

[0076] In one embodiment, the water system further includes a cooling chamber 25, a compressor 22, a throttling device 23, and an evaporator 24. The compressor 22, the refrigerant heat exchange channel 211, the throttling device 23, and the evaporator 24 are sequentially connected end-to-end along the refrigerant flow direction. A pure water outlet is connected to the cooling chamber 25 to supply water to the cooling chamber 25. The evaporator 24 is used to cool the water in the cooling chamber 25. The method further includes:

[0077] Based on the user's ice-making command, water is supplied to the refrigeration chamber 25 until the second preset water storage capacity is reached, and the compressor 22 is controlled to start working so that refrigerant can pass through the refrigerant heat exchange channel 211.

[0078] In other words, this setting can meet the cooling requirements of the refrigerant during ice making, ensuring the smooth execution of the ice making process.

[0079] Example 3

[0080] This embodiment provides a control method for a water system, and the control method provided in this embodiment is a further improvement on the control method in the above embodiments.

[0081] Specifically, in this embodiment, the water pump 1314 is installed on the pure water circuit 11, and the control method includes: when the outlet of the pure water circuit 11 is in the open state, controlling the heat exchange circulation loop to close and the water pump 13 to run.

[0082] Since the pure water circuit 11 is open, it indicates that there is a demand for purified drinking water. At this time, closing the heat exchange circulation circuit can ensure that pure water flows smoothly to the purified drinking water end, thus ensuring that the user's water needs are met.

[0083] Specifically, the control method includes the following steps:

[0084] Step S101: Receive ice-making command;

[0085] Step S102: After supplying water to the refrigeration chamber 25, start the compressor 22;

[0086] Step S103: Determine whether the water purifier is in the open state. If yes, proceed to step S104; otherwise, proceed to step S105.

[0087] Step S104: The heat exchange circulation loop is disconnected and water pump 13 is started;

[0088] Step S105: The heat exchange circulation loop is turned on and the water pump 13 is started.

[0089] Example 4

[0090] This embodiment provides a control method for a water system, and the control method provided in this embodiment is a further improvement on the control method in the above embodiments.

[0091] In this embodiment, the pure water circuit 11 includes a pure water tank 112, and a booster pump 1100 is installed at the raw water inlet of the filter device 17. The control method further includes:

[0092] The water volume in the pure water tank 112 is obtained in real time. When the water volume in the pure water tank 112 is less than the first preset water volume, the booster pump 1100 is started.

[0093] That is, when the water storage in the pure water tank 112 is less than the first preset water storage, it means that the water storage in the pure water tank 112 is too small and cannot meet the cooling requirements of the refrigerant. At the same time, there is also a problem of insufficient supply of clean drinking water to the clean drinking water end. Therefore, it is necessary to replenish the pure water tank 112 with pure water in a timely manner.

[0094] Specifically, the control methods include:

[0095] Step S201: Standby;

[0096] Step S202: Receive ice-making command;

[0097] Step S203: After supplying water to the refrigeration chamber 25, start the compressor 22;

[0098] Step S204: Determine whether the cooling program has ended. If yes, proceed to step S205; otherwise, proceed to step S206.

[0099] Step S205: Turn off compressor 22 and water pump 13;

[0100] Step S206: Determine whether the water purifier is in the open state. If not, proceed to step S207; if yes, proceed to step S208.

[0101] Step S207: The heat exchange circulation loop is turned on and the water pump 13 is started, and then return to step S204;

[0102] Step S208: The heat exchange circulation loop is disconnected and water pump 13 is started;

[0103] Step S209: Is the water level in the short pure water tank 112 lower than the first preset water level? If yes, proceed to step S210; otherwise, proceed to step S211.

[0104] Step S210: Put the booster pump 1100 into operation.

[0105] Step S211: Determine whether the booster pump 1100 is in operation. If yes, proceed to step S212; otherwise, proceed to step S213.

[0106] Step S212: Determine whether the water storage volume in the pure water tank 112 is greater than or equal to the third preset water storage volume. If yes, proceed to step S213; otherwise, proceed to step S210.

[0107] Step S213: Stop the booster pump 1100.

[0108] Example 5

[0109] This embodiment provides a control method for a water system, and the control method provided in this embodiment is a further improvement on the control method in the above embodiments.

[0110] The pure water circuit 11 includes a pure water tank 112, and a radiator 100 is installed on the bypass pipe 12. The control method also includes:

[0111] The water temperature of the pure water tank 112 is acquired in real time. When the water temperature of the pure water tank 112 is higher than the preset water temperature, the heat exchange circulation loop is activated and the water pump 13 and radiator 100 are operated.

[0112] That is, in this embodiment, when the outlet of the water supply circuit is closed and the water temperature in the pure water tank 112 is higher than the preset water temperature, the heat exchange circulation loop is controlled to be turned on to achieve water flow heat dissipation. When the outlet of the water supply circuit is closed and the water temperature in the pure water tank 112 is lower than or equal to the preset water temperature, the heat exchange circulation loop does not need to be turned on, thereby reducing costs while ensuring heat dissipation effect.

[0113] Specifically, the control methods include:

[0114] Step S301: Receive ice-making command;

[0115] Step S302: After supplying water to the refrigeration chamber 25, start the compressor 22;

[0116] Step S303: Determine whether the water purifier is in the open state. If yes, proceed to step S304; otherwise, proceed to step S305.

[0117] Step S304: The heat exchange circulation loop is opened and water pump 13 is started;

[0118] Step S305: Determine whether the water temperature in the pure water tank 112 is higher than the preset water temperature. If yes, proceed to step S306; otherwise, proceed to step S307.

[0119] Step S306: The heat exchange circulation loop is turned on and the water pump 13 is started;

[0120] Step S307: Keep water pump 13 in a stopped state.

[0121] 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.

[0122] 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 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, It includes a heat exchanger (21), a filter (17) and a bypass pipe (12). The heat exchanger (21) has a refrigerant heat exchange channel (211). The filter (17) has a raw water inlet, a pure water outlet and a wastewater outlet. The pure water outlet is connected to a pure water path (11). The pure water path (11) has a heat exchange position that can exchange heat with the refrigerant heat exchange channel (211). Both ends of the bypass pipe (12) are connected to the pure water circuit (11) and are arranged in parallel with the heat exchange position, so that the bypass pipe (12) and part of the pure water circuit (11) are connected to form a heat exchange circulation loop. The heat exchange circulation loop can be selectively connected, and a water pump (13) is provided on the heat exchange circulation loop.

2. The water system according to claim 1, characterized in that, A radiator (100) is provided on the bypass pipe (12).

3. The water system according to claim 2, characterized in that, The radiator (100) includes heat dissipation fins installed on the bypass pipe (12), and the heat dissipation fins are arranged in a plurality of spaced intervals along the extension direction of the bypass pipe (12).

4. The water system according to claim 1, characterized in that, A first check valve (15) is provided on the pure water circuit (11). The first check valve (15) is located between the pure water outlet and the outlet of the bypass pipe (12). The first check valve (15) only allows water to flow from the pure water outlet to the heat exchange position. And / or, a second one-way valve (16) is provided on the bypass pipe (12), the second one-way valve (16) only allows water to flow from the inlet end of the bypass pipe (12) to the outlet end of the bypass pipe (12).

5. The water system according to claim 1, characterized in that, The water pump (13) is installed in the pure water circuit (11), and the water pump (13) is located downstream of the heat exchange location.

6. The water system according to any one of claims 1-5, characterized in that, The pure water circuit (11) includes a pure water tank (112), a pure water outlet pipe (111) connecting the pure water outlet and the water tank inlet of the pure water tank (112), and a pure water supply pipe (113) connecting the water tank outlet of the pure water tank (112). The two ends of the bypass pipe (12) are respectively connected to the pure water outlet pipe (111) and the pure water supply pipe (113). The heat exchange position is formed at the pure water tank (112) or the pure water outlet pipe (111). Alternatively, the heat exchanger (21) has a water heat exchange channel, which is connected in series to the pure water circuit (11), and the heat exchange position is formed at the water heat exchange channel.

7. The water system according to claim 6, characterized in that, The pure water tank (112) is equipped with a liquid level detection device (140), which is used to detect the liquid level in the pure water tank (112); And / or, the pure water tank (112) is provided with a temperature detection element (130), which is used to detect the water temperature in the pure water tank (112).

8. The water system according to any one of claims 1-5, characterized in that, The water system also includes a refrigeration chamber (25), a compressor (22), a throttling device (23), and an evaporator (24). The compressor (22), the refrigerant heat exchange channel (211), the throttling device (23), and the evaporator (24) are connected sequentially in a loop along the refrigerant flow direction. The pure water outlet is connected to the refrigeration chamber (25) to supply water to the refrigeration chamber (25). The evaporator (24) is used to cool the water in the refrigeration chamber (25).

9. A water purification device, characterized in that, Including the waterway system as described in any one of claims 1-8.

Images