Multi-temperature drinking water system and drinking water equipment

Abstract

The present invention relates to the technical field of drinking water equipment, and particularly relates to a multi-temperature-section drinking water system and a drinking water equipment, including: a water outlet nozzle; a heating element, the heating element having a heating space, and the heating element being capable of heating the water in the heating space; a heat exchange module, the heat exchange module having a cooling medium channel and a plurality of heat exchange channels, the medium in each heat exchange channel being capable of exchanging heat with the medium in the cooling medium channel, one end of each heat exchange channel being communicated with the heating space, the other end of the heat exchange channel being communicated with the water outlet nozzle, and the lengths of the respective heat exchange channels being different; a flow rate regulating member, the flow rate regulating member being used for controlling the flow rate of at least one of the cooling medium channel and the heat exchange channels. By regulating the length of the heat exchange channels for circulating hot water and regulating the flow rate of the cooling medium channel and / or the heat exchange channels, the two are combined to accurately control the water outlet temperature of the water outlet nozzle.

Description

Technical Field

[0001] The present invention relates to the technical field of drinking water equipment, and particularly to a multi-temperature-section drinking water system and drinking water equipment. Background Art

[0002] With the improvement of people's living standards and the continuous development of technologies related to drinking water equipment, drinking water equipment capable of providing multiple temperatures has gradually been widely used. When providing drinking water at different temperature sections to users, in order to improve the quality of drinking water, it is generally necessary to first heat the drinking water to the boiling state and then cool the boiled water to the target temperature. Further, in order to reduce the time required to cool the boiling water to the target temperature, a heat exchange module is further provided in the drinking water system so that the boiling water can exchange heat with the cooling medium and quickly cool down. However, in the actual use process, there is a certain deviation between the outlet water temperature and the temperature required by the user, and it is impossible to accurately provide drinking water at the temperature required by the user. Summary of the Invention

[0003] In view of the problem that there is a certain deviation between the outlet water temperature and the temperature required by the user, and it is impossible to accurately provide drinking water at the temperature required by the user, the present invention provides a multi-temperature-section drinking water system and drinking water equipment to accurately control the outlet water temperature and meet the water use requirements of users.

[0004] A multi-temperature-section drinking water system includes:

[0005] An outlet nozzle;

[0006] A heating element, the heating element having a heating space, and the heating element being capable of heating the water in the heating space;

[0007] A heat exchange module, the heat exchange module having a cooling medium channel and a plurality of heat exchange channels, the medium in each heat exchange channel being capable of exchanging heat with the medium in the cooling medium channel, one end of each heat exchange channel being communicated with the heating space, the other end of the heat exchange channel being communicated with the outlet nozzle, and the lengths of the respective heat exchange channels being different;

[0008] A flow rate regulating member, the flow rate regulating member being used to control the flow rate of at least one of the cooling medium channel and the heat exchange channels.

[0009] The above solution provides a multi-temperature-section drinking water system. The hot water heated by the heating element can enter the heat exchange module for heat exchange, and during the heat exchange process, different lengths of the heat exchange channels can be selected as the channels for the hot water to flow through, so that the forward path length of the hot water during heat exchange adapts to the water intake requirements of users. At the same time, the flow rate of the cooling medium channel and / or the heat exchange channels can be controlled by the flow rate regulating member, so as to control the heat exchange amount of the hot water in the heat exchange channels per unit time, and further accurately control the outlet water temperature of the outlet nozzle.

[0010] In one embodiment, the multi-temperature-section drinking water system further includes a water storage tank. The water outlet of the water storage tank is communicated with the heating space, and the passage connecting the water outlet of the water storage tank and the heating space is a water conveyance passage, and the flow rate regulating member is arranged on the water conveyance passage.

[0011] In one embodiment, the multi-temperature-section drinking water system further includes a water storage tank. The water outlet of the water storage tank is communicated with the heating space. The cooling medium channel includes the water storage space in the water storage tank. The heat exchange module further includes a heat exchange pipe, and the channel in the heat exchange pipe is the heat exchange channel. The heat exchange pipe is arranged in the water storage tank. One end of the heat exchange pipe is communicated with the heating space, and the other end of the heat exchange pipe is communicated with the water outlet nozzle.

[0012] In one embodiment, the multi-temperature-section drinking water system further includes a raw water tank and a filtration assembly. The raw water inlet of the filtration assembly is communicated with the raw water tank, and the pure water outlet of the filtration assembly is communicated with the heating space. The cooling medium channel includes the water storage space in the raw water tank. The heat exchange module further includes a heat exchange pipe, and the channel in the heat exchange pipe is the heat exchange channel. The heat exchange pipe is arranged in the raw water tank. One end of the heat exchange pipe is communicated with the heating space, and the other end of the heat exchange pipe is communicated with the water outlet nozzle.

[0013] In one embodiment, the heat exchange module includes a converging main pipe, a diverging main pipe, a first multi-way valve, and branch heat exchange pipes. One end of the converging main pipe is communicated with the heating space, and the other end of the converging main pipe is communicated with the water inlet of the first multi-way valve. At least one first opening is provided on the branch heat exchange pipes, and the respective first openings are arranged at intervals in the axial direction of the branch heat exchange pipes. Each of the first openings and the inlet of the branch heat exchange pipes are respectively communicated with the respective water outlets of the first multi-way valve. One end of the diverging main pipe is communicated with the outlet of the branch heat exchange pipes, and the other end of the diverging main pipe is communicated with the water outlet nozzle.

[0014] In one embodiment, a check valve is provided on the branch heat exchange pipes, and the direction of flow allowed by the check valve is from the inlet to the outlet of the branch heat exchange pipes.

[0015] In one embodiment, the multi-temperature-section drinking water system further includes a raw water tank, a filtration assembly, and a water storage tank. The raw water inlet of the filtration assembly is communicated with the raw water tank, the pure water outlet of the filtration assembly is communicated with the water inlet of the water storage tank, the water outlet of the water storage tank is communicated with the heating space, and at least a part of the branch heat exchange pipes is arranged in the raw water tank and / or the water storage tank.

[0016] In one embodiment, the heat exchange module includes an inlet header, an outlet header, a first multi-way valve, and a plurality of heat exchange pipe segments. One end of the inlet header is in communication with the heating space, and the other end of the inlet header is in communication with the water inlet of the first multi-way valve. One end of each of the heat exchange pipe segments is respectively in communication with each of the water outlets of the first multi-way valve, and the other end of each of the heat exchange pipe segments is in communication with one end of the outlet header. The other end of the outlet header is in communication with the water outlet nozzle. Each of the heat exchange pipe segments is connected in parallel, and the lengths of each of the heat exchange pipe segments are different.

[0017] In one embodiment, the multi-temperature section drinking water system further includes a raw water tank, a filtration assembly, and a storage tank. The raw water inlet of the filtration assembly is in communication with the raw water tank, the pure water outlet of the filtration assembly is in communication with the water inlet of the storage tank, the water outlet of the storage tank is in communication with the heating space, a part of the heat exchange pipe segments are disposed in the storage tank, and another part of the heat exchange pipe segments are disposed in the raw water tank.

[0018] A drinking water device includes the above multi-temperature section drinking water system.

[0019] The above solution provides a drinking water device. By adopting the multi-temperature section drinking water system described in any of the above embodiments, the outlet water temperature can be accurately controlled according to the water temperature required by the user. Specifically, by selecting a heat exchange channel with an appropriate length for the flow of hot water, and combining with the flow regulating member to control the flow rate of the cooling medium channel and / or the heat exchange channel, the heat exchange amount of the hot water can be accurately controlled, so that the outlet water temperature of the water outlet nozzle meets the water-taking requirements of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figures 1 to 3 It is a system diagram of the multi-temperature section drinking water system in different embodiments.

[0023] Description of the reference numerals:

[0024] 10. Multi-temperature-section drinking water system; 11. Water outlet nozzle; 12. Heating element; 13. Heat exchange module; 131. Converging main pipe; 132. Diverging main pipe; 133. First multi-way valve; 134. Branch heat exchange pipe; 1341. Check valve; 135. Heat exchange pipe section; 14. Flow control component; 15. Water storage tank; 151. Water conveyance path; 152. Water storage temperature detection component; 16. Filtration assembly; 161. Raw water path; 1611. Raw water driving component; 162. Concentrate water path; 1621. Waste water solenoid valve; 17. Raw water tank; 171. Raw water temperature detection component; 172. Concentrate water storage space; 18. High-temperature water outlet path; 181. Second multi-way valve. Detailed implementation manners

[0025] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0026] As Figures 1 to 3 shown, in one embodiment, a multi-temperature-section drinking water system 10 is provided, including:

[0027] A water outlet nozzle 11;

[0028] A heating element 12, the heating element 12 having a heating space, and the heating element 12 being capable of heating the water in the heating space;

[0029] A heat exchange module 13, the heat exchange module 13 having a cooling medium channel and a plurality of heat exchange channels, the medium in each heat exchange channel being capable of exchanging heat with the medium in the cooling medium channel, one end of each heat exchange channel being communicated with the heating space, the other end of each heat exchange channel being communicated with the water outlet nozzle 11, and the lengths of the respective heat exchange channels being different;

[0030] A flow control component 14, the flow control component 14 being used to control the flow rate of at least one of the cooling medium channel and the heat exchange channels.

[0031] A multi-temperature-section drinking water system 10 provided by the above solution, the hot water heated by the heating element 12 can enter the heat exchange module 13 for heat exchange, and during the heat exchange process, different lengths of the heat exchange channels can be selected as the channels for the hot water to flow through, so that the forward path length of the hot water during heat exchange adapts to the user's water intake requirements. At the same time, the flow rate control member 14 can also be used to control the flow rate of the cooling medium channel and / or the heat exchange channel, so as to control the heat exchange amount of the hot water in the heat exchange channel per unit time, and further accurately control the water outlet temperature of the water outlet 11.

[0032] Specifically, the flow rate control member 14 can control the flow rate in the cooling medium channel, so as to control the flow rate of the cooling medium that can exchange heat with the hot water in the heat exchange channel per unit time, and further control the heat released by the hot water in the heat exchange channel per unit time.

[0033] Alternatively, the flow rate control member 14 can control the flow rate in the heat exchange channel, so as to control the duration for which a unit volume of hot water can flow through the heat exchange channel, and further control the heat that the unit volume of hot water can finally release.

[0034] Alternatively, the flow rate control member 14 controls the flow rates in both the cooling medium channel and the heat exchange channel simultaneously, so as to control the heat released by the hot water in the heat exchange channel per unit volume finally.

[0035] For example, in one embodiment, as Figures 1 to 3 shown, the multi-temperature-section drinking water system 10 further includes a water storage tank 15, and the water outlet of the water storage tank 15 is communicated with the heating space. The water stored in the water storage tank 15 is introduced into the heating space and heated into high-temperature water.

[0036] Further, in one embodiment, as Figures 1 to 3 shown, the passage communicating between the water outlet of the water storage tank 15 and the heating space is a water conveyance passage 151. The flow rate control member 14 is arranged on the water conveyance passage 151. The flow rate control member 14 can control the flow rate of the water conveyance passage 151, so as to control the flow rate of the hot water that can flow out of the heating space, and then regulate the flow rate of the hot water in the heat exchange channel. In other words, the multi-temperature-section drinking water system 10 can not only control the heat exchange amount by controlling the length of the heat exchange channel through which the hot water flows, but also control the flow rate of the hot water in the heat exchange channel, so as to control the flow duration of the hot water in the heat exchange channel, and further more accurately control the final water outlet temperature.

[0037] More specifically, in some embodiments, as Figures 1 to 3 shown, the flow rate control member 14 includes a water pump.

[0038] Optionally, in some other embodiments, the flow regulator 14 includes a regulating valve with adjustable opening degree.

[0039] Alternatively, in still some other embodiments, the flow regulator 14 is other devices capable of controlling the flow rate of the passage where it is located.

[0040] Further, in one embodiment, the heating element 12 includes a heating body with adjustable power. By adjusting the heating power of the heating body, it is ensured that the water flowing through the heating space can be heated to the boiling state or its target high temperature state. The temperature that the heating element 12 in this application can heat the water in the heating space to is generally higher than the water intake temperature. For example, the heating element 12 can heat the water to the boiling state. Therefore, if it is necessary to quickly provide the water at the required temperature for the user, the water heated by the heating element needs to be cooled.

[0041] Specifically, in one embodiment, the flow regulator 14 is arranged on the water delivery passage 151, and the heating element 12 includes the heating body with adjustable power. When regulating the water flow rate in the heating space through the flow regulator 14, the heating body can flexibly adjust the heating power according to the water flow rate, so as to ensure that the water finally flowing out of the heating space can reach the target temperature regardless of how the flow rate changes. The target temperature here refers to the temperature to which the heating element 12 needs to heat the water, rather than the water intake temperature required by the user.

[0042] Further, in one embodiment, a heating temperature detector is arranged at the water outlet of the heating element 12, and the heating temperature detector is electrically connected to the heating element 12. The heating element 12 can adjust the heating power according to the temperature value detected by the heating temperature detector, so as to ensure that the water temperature of the water output from the heating space reaches the target temperature.

[0043] In particular, when the flow regulator 14 is arranged on the water delivery passage 151, the water flow rate flowing into the heating element 12 may change at any time. In this case, the heating temperature detector can detect whether the heating element 12 heats the water to the target temperature. When the heating temperature detector detects that the water output at the water outlet of the heating element 12 does not reach the target temperature, the heating power of the heating element 12 is increased. Subsequently, it is ensured that during the process of the change of the water flow rate, the heating element 12 can still provide sufficient heat for the water and heat it to the target temperature.

[0044] Further, in some embodiments, the heat exchange module 13 includes a heat exchange plate, and both the cooling medium channel and the heat exchange channel are integrated in the heat exchange plate.

[0045] Alternatively, in some other embodiments, the heat exchange module 13 includes an inner tube and an outer tube. The outer tube is sleeved outside the inner tube, and there is a spaced arrangement between the outer tube and the inner tube. One of the channels in the inner tube and the gap spaced between the inner tube and the outer tube is the cooling medium channel, and the other is the heat exchange channel.

[0046] Or, in yet another embodiment, the heat exchange module 13 includes a heat exchange tube, and the inner channel of the heat exchange tube is the heat exchange channel. The multi-temperature section drinking water system 10 further includes a storage tank for storing a cooling medium. The heat exchange tube is placed in the storage tank, and the cooling medium in the storage tank can exchange heat with the hot water in the heat exchange tube.

[0047] Specifically, the cooling medium used in the cooling medium channel can be any substance that can absorb the heat of the hot water in the heat exchange channel, such as pure water or concentrated water obtained by filtering through the filter assembly 16, or the raw water required when the filter assembly 16 filters.

[0048] For example, in one embodiment, as Figures 1 to 3 shown, the multi-temperature section drinking water system 10 further includes a water storage tank 15, and the water outlet of the water storage tank 15 is communicated with the heating space. The cooling medium channel includes the water storage space in the water storage tank 15. At this time, the cooling medium is the water stored in the water storage tank 15. The water in the water storage tank 15 is also used to be conveyed to the heating space for heating.

[0049] The heat exchange module 13 further includes a heat exchange tube, and the channel inside the heat exchange tube is the heat exchange channel. The heat exchange tube is placed in the water storage tank 15. One end of the heat exchange tube is communicated with the heating space, and the other end of the heat exchange tube is communicated with the water outlet nozzle 11.

[0050] The heat exchange channel is formed inside the heat exchange tube, and the heat exchange tube is located in the water storage tank 15. Thus, the hot water in the heat exchange tube can exchange heat with the water in the water storage tank 15. As the heat exchange process progresses, the water in the water storage tank 15 will gradually heat up.

[0051] Based on this, further, in some embodiments, the heating power of the heating element 12 is adjustable, and the heating element 12 can adjust the heating power based on the change in the temperature of the water conveyed from the water storage tank 15, so as to ensure that the temperature of the finally output water reaches the target temperature.

[0052] Specifically, as Figures 1 to 3 shown, a water storage temperature detection element 152 is provided in the water storage tank 15. The water storage temperature detection element 152 is electrically connected to the heating element 12. Then the heating element 12 can flexibly adjust the heating power according to the temperature of the water conveyed from the water storage tank 15.

[0053] Further, when the water storage temperature detection component 152 detects that the water temperature in the water storage tank 15 is higher than the temperature required for water intake, obviously the water in the water storage tank 15 cannot be used as a cooling medium to cool the hot water in the heat exchange channel to the temperature required for water intake by the user at this time. At this time, a heat exchange channel not placed in the water storage tank 15 can be selected, in other words, other cooling media are selected to absorb the heat of the hot water.

[0054] Further, in one embodiment, as Figures 1 to 3 shown, the multi-temperature section drinking water system 10 further includes a filtering assembly 16, and the pure water outlet of the filtering assembly 16 is communicated with the water inlet of the water storage tank 15. The water stored in the water storage tank 15 is the pure water obtained by filtering of the filtering assembly 16. The hot water in the heat exchange tube placed in the water storage tank 15 can exchange heat with the pure water.

[0055] Further specifically, in another embodiment, as Figure 2 and Figure 3 shown, the multi-temperature section drinking water system 10 further includes a raw water tank 17 and a filtering assembly 16. The raw water inlet of the filtering assembly 16 is communicated with the raw water tank 17, and the pure water outlet of the filtering assembly 16 is communicated with the heating space. The heating element 12 is used to heat the pure water formed by filtering through the filtering assembly 16.

[0056] Further, the cooling medium channel includes the water storage space in the raw water tank 17. At this time, the raw water in the raw water tank 17 is used as a cooling medium to absorb the heat of the hot water in the heat exchange channel.

[0057] Specifically, as Figure 2 and Figure 3 shown, the heat exchange module 13 further includes a heat exchange tube, and the channel in the heat exchange tube is the heat exchange channel. The heat exchange tube is placed in the raw water tank 17. One end of the heat exchange tube is communicated with the heating space, and the other end of the heat exchange tube is communicated with the water outlet nozzle 11.

[0058] The heat exchange tube is placed in the raw water tank 17, and the heat of the hot water in the heat exchange tube can be transferred to the raw water in the raw water tank 17.

[0059] Similarly, as the heat exchange process progresses, the temperature of the raw water in the raw water tank 17 will increase. When the temperature of the raw water is higher than the user's water intake temperature, the raw water in the raw water tank 17 cannot be used as a cooling medium to cool the hot water in the heat exchange channel to the temperature required for water intake by the user. At this time, other heat exchange channels not placed in the raw water tank 17 need to be selected for use.

[0060] Based on this, as Figure 2 and Figure 3As shown, a raw water temperature detector 171 is further provided in the raw water tank 17.

[0061] Furthermore, as Figures 1 to 3 shown, a concentrated water storage space 172 separated from the space for storing raw water is also provided in the raw water tank 17. The concentrated water outlet of the filtration assembly 16 communicates with the concentrated water storage space 172.

[0062] In some embodiments, the heat exchange tube is disposed in the concentrated water storage space 172. At this time, the concentrated water in the concentrated water storage space 172 is used as a cooling medium to cool the hot water in the heat exchange tube.

[0063] More specifically, in some embodiments, the heat exchange module 13 includes a plurality of the heat exchange tubes, and a plurality of the heat exchange channels are formed by the inner channels of at least one of the heat exchange tubes. A part of the heat exchange tubes is located in the water storage tank 15, and / or a part of the heat exchange tubes is located in the space for storing raw water in the raw water tank 17, and / or another part of the heat exchange tubes is located in the storage space for storing concentrated water in the raw water tank 17.

[0064] Furthermore, in one embodiment, as Figures 1 to 3 shown, the passage connecting the raw water tank 17 and the raw water inlet of the filtration assembly 16 is a raw water passage 161, and a raw water driving member 1611 is provided on the raw water passage 161 for providing a driving force for the raw water in the raw water passage 161 to flow from the raw water tank 17 to the filtration assembly 16.

[0065] Specifically, the raw water driving member 1611 can be a water pump.

[0066] Furthermore, as Figures 1 to 3 shown, in one embodiment, the passage connecting the concentrated water outlet of the filtration assembly 16 and the concentrated water storage space 172 is a concentrated water passage 162, and a waste water solenoid valve 1621 is provided on the concentrated water passage 162.

[0067] Furthermore, as Figure 1 and Figure 2As shown, in one embodiment, the heat exchange module 13 includes an inlet main pipe 131, an outlet main pipe 132, a first multi-way valve 133, and a branched heat exchange pipe 134. One end of the inlet main pipe 131 is in communication with the heating space, and the other end of the inlet main pipe 131 is in communication with the water inlet of the first multi-way valve 133. At least one first opening is provided on the branched heat exchange pipe 134, and the respective first openings are arranged at intervals in the axial direction of the branched heat exchange pipe 134. Each of the first openings and the inlet of the branched heat exchange pipe 134 are respectively in communication with the respective water outlets of the first multi-way valve 133. One end of the outlet main pipe 132 is in communication with the outlet of the branched heat exchange pipe 134, and the other end of the outlet main pipe 132 is in communication with the water outlet nozzle 11.

[0068] The channel surrounded by the entire pipe section between the inlet and the outlet of the branched heat exchange pipe 134 is one of the heat exchange channels. The channel surrounded by the pipe section between any one of the first openings of the branched heat exchange pipe 134 and the outlet is also one of the heat exchange channels. Based on the fact that the respective first openings are arranged at intervals in the axial direction of the branched heat exchange pipe 134, the lengths of the respective heat exchange channels are different. Among them, the heat exchange channel surrounded by the entire pipe section from the inlet to the outlet of the branched heat exchange pipe 134 has the longest length.

[0069] The high-temperature water heated in the heating space flows from the inlet main pipe 131 to the water inlet of the first multi-way valve 133. By controlling which specific water outlet of the first multi-way valve 133 is in communication with the water inlet of the first multi-way valve 133, the path length of the hot water flowing through the branched heat exchange pipe 134 is controlled, and then the hot water flowing through the heat exchange channels of different lengths is controlled. Specifically, when the water temperature taken by the user is relatively high, a first opening closer to the outlet of the branched heat exchange pipe 134 can be selected as the inlet for the hot water to enter the branched heat exchange pipe 134. Then, it is necessary to control the water outlet of the first multi-way valve 133 in communication with this first opening to be in communication with the water inlet of the first multi-way valve 133, so that the hot water transported from the inlet main pipe 131 flows to the first opening.

[0070] Further, in one embodiment, as Figure 1 and Figure 2 shown, a check valve 1341 is provided on the branched heat exchange pipe 134, and the direction of flow allowed by the check valve 1341 is from the inlet to the outlet of the branched heat exchange pipe 134. Thus, the water in the branched heat exchange pipe 134 can only flow in the direction from the inlet to the outlet of the branched heat exchange pipe 134.

[0071] Optionally, in some other embodiments, a switching valve is provided on the branch heat exchange tube 134, and the switching valve is provided between adjacent first openings, and the switching valve is provided between the first opening and the inlet of the branch heat exchange tube 134. Thus, when a certain first opening is selected as the inlet for hot water to enter the branch heat exchange tube 134, all the switching valves on the branch heat exchange tube 134 on the side of this first opening close to the inlet of the branch heat exchange tube 134 are in the closed state, and all the switching valves on the side of this first opening close to the outlet of the branch heat exchange tube 134 are in the open state, so as to ensure that the hot water entering the branch heat exchange tube 134 from the first opening only flows to the outlet of the branch heat exchange tube 134 and does not flow back to the inlet of the branch heat exchange tube 134.

[0072] As described above, the cooling medium used to absorb the heat of the hot water in the heat exchange channel can be the water in the water storage tank 15, the raw water used during the filtration of the filtration assembly 16, or the pure water or concentrated water generated by the filtration of the filtration assembly 16.

[0073] For example, as Figure 1 and Figure 2 shown, in one embodiment, the multi-temperature drinking water system 10 further includes a raw water tank 17, a filtration assembly 16, and a water storage tank 15. The raw water inlet of the filtration assembly 16 is communicated with the raw water tank 17, the pure water outlet of the filtration assembly 16 is communicated with the water inlet of the water storage tank 15, and the water outlet of the water storage tank 15 is communicated with the heating space. At least a part of the branch heat exchange tube 134 is placed in the water storage tank 15.

[0074] When the hot water flows through the branch heat exchange tube 134, it exchanges heat with the pure water stored in the water storage tank 15.

[0075] Specifically, as Figure 1 shown, in some embodiments, the branch heat exchange tube 134 is entirely located in the water storage tank 15.

[0076] Or, as Figure 2 shown, in some other embodiments, a part of the branch heat exchange tube 134 is located in the water storage tank 15, and another part is located in the raw water tank 17.

[0077] Or, in still some other embodiments, the branch heat exchange tube 134 is entirely located in the raw water tank 17.

[0078] It is also possible that in some embodiments, in addition to at least a part of the branch heat exchange tube 134 being located in the raw water tank 17 and / or the water storage tank 15, there may also be a part located in other devices storing the cooling medium, such as the concentrated water storage space 172 in the raw water tank 17 for storing concentrated water.

[0079] Further, in one embodiment, the water storage temperature detector 152 and / or the raw water temperature detector 171 are electrically connected to the first multi-way valve 133. When the temperature detector detects that the water temperature in the space where it is located is higher than the user's water intake temperature, the first multi-way valve 133 can be controlled to switch states to select a suitable water outlet to communicate with the water inlet, so that at least part of the pipe section of the branch heat exchange pipe 134 through which hot water flows is not located in the space where this temperature detector is located.

[0080] Further, in another embodiment, as Figure 3 shown, the heat exchange module 13 includes an inlet main pipe 131, an outlet main pipe 132, a first multi-way valve 133, and a plurality of heat exchange pipe sections 135. One end of the inlet main pipe 131 is communicated with the heating space, and the other end of the inlet main pipe 131 is communicated with the water inlet of the first multi-way valve 133. One end of each heat exchange pipe section 135 is respectively communicated with each water outlet of the first multi-way valve 133, and the other end of each heat exchange pipe section 135 is communicated with one end of the outlet main pipe 132. The other end of the outlet main pipe 132 is communicated with the water outlet 11. Each heat exchange pipe section 135 is in parallel, and the lengths of each heat exchange pipe section 135 are different.

[0081] The channel in each heat exchange pipe section 135 is a heat exchange channel, and the lengths of each heat exchange pipe section 135 are different, so that the lengths of each heat exchange channel are different. In actual use, it is possible to control which specific water outlet of the first multi-way valve 133 communicates with the water inlet of the first multi-way valve 133, so as to control the hot water to flow through the corresponding heat exchange pipe section 135.

[0082] Of course, at a certain moment, if multiple heat exchange pipe sections 135 are required to circulate hot water, the multiple water outlets on the first multi-way valve 133 that are communicated with these multiple heat exchange pipe sections 135 can be communicated with the water inlet of the first multi-way valve 133.

[0083] Further, in one embodiment, as Figure 3 shown, a one-way valve 1341 is provided on the heat exchange pipe section 135, and the allowed flow direction of the one-way valve 1341 is the direction along the heat exchange pipe section 135 from the end of the heat exchange pipe section 135 that is communicated with the inlet main pipe 131 to the end of the heat exchange pipe section 135 that is communicated with the outlet main pipe 132.

[0084] Specifically, in one embodiment, as Figure 3As shown, the multi-temperature drinking water system 10 further includes a raw water tank 17, a filtration component 16, and a storage tank 15. The raw water inlet of the filtration component 16 is communicated with the raw water tank 17, the pure water outlet of the filtration component 16 is communicated with the water inlet of the storage tank 15, and the water outlet of the storage tank 15 is communicated with the heating space. A part of the heat exchange pipe section 135 is placed in the storage tank 15, and another part of the heat exchange pipe section 135 is placed in the raw water tank 17.

[0085] The heat exchange pipe section 135 placed in the storage tank 15 and / or the raw water tank 17 can be selectively used for circulating hot water, so that the water in the storage tank 15 and / or the raw water tank 17 can be selectively used as a refrigeration medium.

[0086] Similarly, in some embodiments, the first multi-way valve 133 communicated with one end of each heat exchange pipe section 135 is electrically connected to the water storage temperature detector 152 and / or the raw water temperature detector 171. Thus, it is possible to flexibly select which heat exchange pipe section 135 participates in the hot water circulation process according to the temperature value detected by the temperature detector.

[0087] Further, in one embodiment, as Figures 1 to 3 shown, the multi-temperature drinking water system 10 further includes a high-temperature water outlet passage 18. One end of the high-temperature water outlet passage 18 is communicated with the water outlet nozzle 11, and the other end of the high-temperature water outlet passage 18 is communicated with the converging main pipe 131 through a second multi-way valve 181. Thus, when the user's water intake temperature is relatively high, for example, when the user needs to take boiling water, the second multi-way valve 181 directly switches to the state where the converging main pipe 131 and the high-temperature water outlet passage 18 are conducted, and then directly conveys the high-temperature water heated by the heating element 12 to the water outlet nozzle for the user to take.

[0088] Further, in another embodiment, a drinking water device is provided, including the above multi-temperature drinking water system 10.

[0089] A drinking water device provided by the above solution can accurately control the water outlet temperature according to the user's water intake temperature by adopting the multi-temperature drinking water system 10 described in any of the above embodiments. Specifically, by selecting a heat exchange channel with an appropriate length for circulating hot water, and combining the flow rate regulating member 14 to control the flow rate of the cooling medium channel and / or the heat exchange channel, the heat exchange amount of hot water can be accurately controlled, so that the water outlet temperature of the water outlet nozzle 11 meets the user's water intake requirements.

[0090] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0091] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0092] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0093] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0094] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0095] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0096] The above-described embodiments merely represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A multi-temperature drinking water system, characterized in that, Comprising: A water outlet nozzle; A heating element having a heating space, and the heating element is capable of heating the water in the heating space; A heat exchange module having a cooling medium channel and a plurality of heat exchange channels. The medium in each heat exchange channel can exchange heat with the medium in the cooling medium channel. One end of each heat exchange channel communicates with the heating space, and the other end of the heat exchange channel communicates with the water outlet nozzle. The lengths of the respective heat exchange channels are different; A flow rate regulating member for controlling the flow rate of at least one of the cooling medium channel and the heat exchange channels; The heat exchange module includes an inlet manifold, an outlet manifold, a first multi-way valve, and a branched heat exchange pipe. One end of the inlet manifold communicates with the heating space, and the other end of the inlet manifold communicates with the water inlet of the first multi-way valve. At least one first opening is provided on the branched heat exchange pipe, and the respective first openings are arranged at intervals in the axial direction of the branched heat exchange pipe. Each of the first openings and the inlet of the branched heat exchange pipe communicates with a respective water outlet of the first multi-way valve. One end of the outlet manifold communicates with the outlet of the branched heat exchange pipe, and the other end of the outlet manifold communicates with the water outlet nozzle.

2. The multi-temperature drinking water system according to claim 1, wherein The multi-temperature section drinking water system further includes a water storage tank. The water outlet of the water storage tank communicates with the heating space, and the passage connecting the water outlet of the water storage tank and the heating space is a water conveyance passage. The flow rate regulating member is provided on the water conveyance passage.

3. The multi-temperature drinking water system according to claim 1, wherein The multi-temperature section drinking water system further includes a water storage tank. The water outlet of the water storage tank communicates with the heating space. The cooling medium channel includes the water storage space in the water storage tank. The heat exchange module further includes a heat exchange pipe, and the channel in the heat exchange pipe is the heat exchange channel. The heat exchange pipe is disposed in the water storage tank. One end of the heat exchange pipe communicates with the heating space, and the other end of the heat exchange pipe communicates with the water outlet nozzle.

4. The multi-temperature drinking water system according to claim 1 or 2, characterized in that, The multi-temperature section drinking water system further includes a raw water tank and a filtration assembly. The raw water inlet of the filtration assembly communicates with the raw water tank, and the pure water outlet of the filtration assembly communicates with the heating space. The cooling medium channel includes the water storage space in the raw water tank. The heat exchange module further includes a heat exchange pipe, and the channel in the heat exchange pipe is the heat exchange channel. The heat exchange pipe is disposed in the raw water tank. One end of the heat exchange pipe communicates with the heating space, and the other end of the heat exchange pipe communicates with the water outlet nozzle.

5. The multi-temperature drinking water system according to claim 1, characterized in that, A check valve is provided on the branched heat exchange pipe, and the direction of flow allowed by the check valve is from the inlet to the outlet of the branched heat exchange pipe.

6. The multi-temperature-section drinking water system according to claim 5, wherein The multi-temperature section drinking water system further includes a raw water tank, a filtration assembly, and a water storage tank. The raw water inlet of the filtration assembly communicates with the raw water tank, the pure water outlet of the filtration assembly communicates with the water inlet of the water storage tank, the water outlet of the water storage tank communicates with the heating space, and at least a part of the branched heat exchange pipe is disposed in the raw water tank and / or the water storage tank.

7. The multi-temperature drinking water system according to claim 1, wherein The flow rate regulating member includes a water pump.

8. The multi-temperature-section drinking water system according to claim 1, wherein, The flow rate regulating member includes a regulating valve with adjustable opening degree.

9. The multi-temperature drinking water system according to claim 1, characterized in that, A heating temperature detector is provided at the water outlet of the heating element, and the heating temperature detector is electrically connected to the heating element.

10. A drinking water device, characterized in that, It includes the multi-temperature-section drinking water system according to any one of claims 1 to 9.

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