Water heating device and water supply system

Abstract

The utility model discloses a water heating device and a water supply system, and relates to the technical field of water supply, the water heating device comprises a water storage tank used for storing water; the heating element is arranged on the water storage tank and extends into an inner cavity of the water storage tank, and the heating element is used for heating water in the water storage tank; the flow guide component is at least partially arranged in the inner cavity of the water storage tank and is used for guiding at least part of water flowing into the water storage tank to an area close to the heating element, and an outlet of the flow guide component is communicated with the inner cavity of the water storage tank; and the water flowing out of the outlet of the flow guide part is input into the inner cavity of the water storage tank. Cold water input into the water storage tank can be rapidly heated.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply, in particular to a water heating device and a water supply system. Background Art

[0002] In the existing water supply system for providing drinking water to users, there are generally two mainstream heating modes. One is to use an instant heating unit to heat the water. When the user takes water, the instant heating unit heats the cold water and outputs the heated water to the user. With this method, the water supply system as a whole is limited by the heating power of the instant heating unit, the flow rate of boiled water per unit time is small, and the efficiency of hot water output is not high.

[0003] Another approach is to heat water using a water tank equipped with a heating element. In this method, the water tank uses the heating element to preheat the stored water to a boil before the user draws water. The boiled water is then delivered when the user draws water. When using this method, when the water tank is heated by a heating element, the water tank is typically not refilled before delivering hot water to the user, especially for tanks with smaller water capacities. Otherwise, the added water will not be heated to a high temperature in time, resulting in the water being delivered at a lower temperature. Furthermore, some water may not be fully sterilized before being delivered, which could pose a risk to the user if consumed. However, if the water tank is not refilled before delivering hot water to the user, the total amount of hot water that can be delivered at one time is limited, potentially failing to meet user needs. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a water heating device and a water supply system, which can quickly heat the cold water input into the water storage tank.

[0005] The specific technical solution of the embodiment of the utility model is:

[0006] A water heating device, comprising:

[0007] a water storage tank, wherein the water storage tank is used to store water;

[0008] a heating element, the heating element being arranged on the water storage tank and extending into the inner cavity of the water storage tank, the heating element being used to heat the water in the water storage tank;

[0009] A flow guide component is at least partially arranged in the inner cavity of the water storage tank, and the flow guide component is used to guide at least part of the water flowing into the water storage tank to an area close to the heating element. The outlet of the flow guide component is connected to the inner cavity of the water storage tank to input the water flowing out of the outlet of the flow guide component into the inner cavity of the water storage tank.

[0010] Preferably, the area can quickly heat the water close to the heating element, and the outlet of the guide component can guide at least part of the water flowing into the water storage tank to the area for rapid heating.

[0011] Preferably, the rapid heating rate reaches at least 0.00012 Kelvin per liter of water per second corresponding to each watt of heating power.

[0012] Preferably, the flow guiding component comprises a flow guiding pipe, which can guide at least part of the water flowing into the water storage tank into the area.

[0013] Preferably, the range of the region corresponds to the heating power of the heating element and is specifically within an interval of 0.08 mm / W from the outer surface of the heating element.

[0014] Preferably, the flow guide tube is arranged around the heating element in a circumferential direction, or at least a portion of the flow guide tube extends along an extension direction of the heating element.

[0015] Preferably, the guide component is bent and then extends back and forth along the extension direction of the heating element and is arranged close to the heating element.

[0016] Preferably, the outlet of the guide component comprises: a plurality of through holes on the side wall of the guide pipe distributed along the extension direction of the heating element, and the guide component outputs the water in the guide pipe to the area through the plurality of through holes.

[0017] Preferably, the through hole is generally opened toward the heating element.

[0018] Preferably, one end of the flow guide tube is in a blocked state.

[0019] Preferably, at least part of the heating element is substantially U-shaped, and the heating element comprises a first section of heating element and a second section of heating element arranged in parallel, and the flow guide tube is located between the first section of heating element and the second section of heating element.

[0020] Preferably, the flow guide component comprises: a sleeve sleeved outside the heating element, wherein the area is formed in the sleeve; and a connecting piece connecting the interior of the sleeve with the inlet of the flow guide component.

[0021] Preferably, the sleeve and the heating element portion mounted on the sleeve extend in a horizontal direction, the first end of the sleeve is in a blocked state, the second end of the sleeve is in an open state, and the connection point between the connecting piece and the sleeve is relatively closer to the first end of the sleeve.

[0022] Preferably, the height from the upper end surface of the first end of the sleeve to the upper end surface of the second end of the sleeve is in an ascending trend.

[0023] Preferably, the sleeve and the heating element portion mounted on the sleeve both extend in a horizontal direction, the first end of the sleeve is in an open state, and the second end of the sleeve is in an open state.

[0024] Preferably, the connection point between the connecting piece and the sleeve is located in the middle or near the middle between the first end and the second end of the sleeve.

[0025] Preferably, in the vertical direction, the height from the upper end surface of the connection point between the connecting piece and the sleeve to the upper end surface of the first end and / or the second end of the sleeve is in an ascending trend.

[0026] Preferably, the water heating device has a hot water output mode. In the hot water output mode, the heating element is in a heating state, and the hot water in the water tank is output outward. At the same time, the guide component guides at least part of the water flowing into the water tank to an area close to the heating element; the water flow rate of the hot water in the water tank output outward is greater than the water flow rate input into the inner cavity of the water tank by the guide component.

[0027] A water supply system comprises any one of the water heating devices described above.

[0028] Preferably, the water supply system further comprises: a hot water output water path, wherein the hot water output water path is connected to the water storage tank.

[0029] Preferably, the water supply system further comprises:

[0030] A heat exchanger having a first flow channel and a second flow channel, wherein a fluid flowing through the first flow channel can exchange heat with a fluid flowing through the second flow channel, an inlet of the flow guide component can be connected to an outlet of the first flow channel, the inlet of the first flow channel is used to input cold water, and one end of the second flow channel can be connected to the water storage tank;

[0031] A warm water output water channel is connected to the other end of the second flow channel.

[0032] Preferably, the water supply system comprises:

[0033] The first control unit is used to control the water in the water storage tank to flow into the second flow channel and the warm water output water channel, or the water in the water storage tank to flow into the hot water output water channel, or the water in the water storage tank to flow into the second flow channel and the warm water output water channel and the hot water output water channel at the same time.

[0034] Preferably, the water supply system further comprises:

[0035] A driving pump is provided upstream of the second flow channel and the hot water output waterway so as to drive the water in the water storage tank to be output from the outlet of the water storage tank.

[0036] Preferably, the flow rate of the driving pump can be adjusted. The technical solution of the utility model has the following significant beneficial effects:

[0037] The water heating device in the present application can first heat the water in the water tank to a boil through the heating element. Afterwards, when the user needs the water heating device to output hot water, the water heating device can output the hot water in the water tank to the user. At the same time, the guide component can replenish water into the inner cavity of the water tank. The guide component guides at least part of the water flowing into the water tank to an area close to the heating element. The heating element is turned on for heating. Since the water replenished into the water tank is close to the heating element, under the heating effect of the heating element, this part of the water can be quickly heated to a higher temperature by the heating element after flowing out of the guide component. In this way, this part of the water can also be normally output for use by the user. This not only solves the potential safety hazards of the output of this part of the water, but also increases the total amount of hot water outputted by the water tank at one time, thereby achieving the effect of expanding the capacity of the water tank, reducing the possibility of users having to wait when they need a large amount of hot water at one time, and improving the user experience.

[0038] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. Furthermore, the shapes and proportional dimensions of the components in the drawings are for illustrative purposes only and are intended to facilitate understanding of the present invention. They are not intended to limit the shapes and proportional dimensions of the components of the present invention. Those skilled in the art, guided by the present invention, may select various possible shapes and proportional dimensions to implement the present invention, depending on the specific circumstances.

[0040] Figure 1 This is a schematic diagram of the structure of the water heating device in the embodiment of the present utility model;

[0041] Figure 2 This is a structural diagram of the flow guide component and the heating element in the first embodiment of the present utility model;

[0042] Figure 3 for Figure 2 The structure of the middle guide component and the heating element from another angle;

[0043] Figure 4 This is a structural diagram of the flow guide component and the heating element in the second embodiment of the present utility model;

[0044] Figure 5 for Figure 4 The structure of the middle guide component and the heating element from another angle;

[0045] Figure 6 This is a structural diagram of the flow guide component and the heating element in the third embodiment of the present utility model;

[0046] Figure 7 for Figure 6 The structure of the middle guide component and the heating element from another angle;

[0047] Figure 8 This is a structural diagram of the flow guide component and the heating element in the fourth embodiment of the present utility model;

[0048] Figure 9 for Figure 8 The structure of the middle guide component and the heating element from another angle;

[0049] Figure 10 This is a structural principle diagram of a water supply system in an embodiment of the present utility model under one implementation mode;

[0050] Figure 11 This is a structural principle diagram of a water supply system in another embodiment of the present utility model;

[0051] Figure 12This is a structural principle diagram of a water supply system in another embodiment of the present utility model.

[0052] Reference numerals in the above drawings:

[0053] 1. Water purification module; 101. Pre-filter element; 102. Fine filter element; 103. Booster pump; 2. Water storage tank; 21. Fixing parts; 3. Heating element; 31. First-stage heating element; 32. Second-stage heating element; 33. Area; 4. Flow guide component; 41. Flow guide pipe; 42. Sleeve; 43. Connecting piece; 5. Hot water output waterway; 6. Heat exchanger; 61. First flow channel; 62. Second flow channel; 7. Warm water output waterway; 8. First control unit; 9. Cold water output waterway; 10. Second control unit; 11. Drive pump; 12. Water inlet valve; 13. Water output mechanism; 14. One-way valve. DETAILED DESCRIPTION

[0054] The details of the present invention can be more clearly understood in conjunction with the accompanying drawings and the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are intended solely for the purpose of illustrating the present invention and should not be construed as limiting the present invention in any way. Based on the teachings of the present invention, skilled artisans can conceive of any possible variations based on the present invention, all of which should be considered within the scope of the present invention. It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there can be an intermediate element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be an intermediate element. The terms "mounted," "connected," and "connected" should be interpreted broadly, for example, to mean mechanical or electrical connections, internal communication between two elements, direct connection, or indirect connection through an intermediary. The specific meanings of these terms will be understood by those skilled in the art based on the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are intended only to describe specific embodiments and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0056] In order to quickly heat the cold water input into the water storage tank, a water heating device is proposed in this application. Figure 1The schematic diagram of the water heating device in the embodiment of the present utility model is shown in FIG. Figure 1 As shown, the water heating device includes: a water tank 2, which is used to store water; a heating element 3, which is arranged on the water tank 2 and extends into the inner cavity of the water tank 2, and is used to heat the water in the water tank 2; a guide component 4 that is at least partially arranged in the inner cavity of the water tank 2, and is used to guide at least part of the water flowing into the water tank 2 to an area 33 close to the heating element 3, and the outlet of the guide component 4 is connected to the inner cavity of the water tank 2 to input the water flowing out of the outlet of the guide component 4 into the inner cavity of the water tank 2.

[0057] The water heating device of the present application can first heat the water in the water tank 2 to a boil through the heating element 3. Thereafter, when the user needs the water heating device to output hot water, the water heating device can output the hot water in the water tank 2 to the user. At the same time, the guide component 4 can replenish water into the inner cavity of the water tank 2. The guide component 4 guides at least part of the water flowing into the water tank 2 to the area 33 near the heating element 3. The heating element 3 starts heating. Since the water replenished into the water tank 2 is close to the heating element 3, under the heating effect of the heating element 3, this part of the water can be quickly heated to a higher temperature by the heating element 3 immediately after flowing out of the guide component 4. In this way, this part of the water can also be normally output for use by the user. This not only solves the potential safety hazards of the output of this part of the water, such as a low sterilization rate, but also increases the total amount of hot water outputted by the water tank at one time, thereby achieving the effect of expanding the capacity of the water tank 2, reducing the possibility of users having to wait when they need a large amount of hot water at one time, and improving the user experience.

[0058] In order to better understand the water supply system in this application, it will be further explained and illustrated below. Figure 1 As shown, the water tank 2 is used to store water. The water tank 2 has an outlet to output the water stored therein. The water tank 2 can be a tank body that can store water, or it can be other devices that can store water, and this application does not impose any restrictions on it. The heating element 3 is used to heat the water stored in the water tank 2. Furthermore, the water tank 2 can keep the hot water warm. The heating element 3 can heat the water stored in the water tank 2 and boil it to obtain boiled hot water. The heating element can be arranged on the water tank and extend into the inner cavity of the water tank. For example, the heating element 3 can be in the form of an electric heating element, which has the advantages of high heating power and fast speed. Of course, the heating element can also be other types of heating devices, and this application does not impose any restrictions on it. The heating element 3 is used to quickly heat the water that flows out from the guide component 4 to the area 33 near the heating element 3.

[0059] In this embodiment, the flow guide component 4 can be at least partially disposed within the inner cavity of the water storage tank 2. The inlet of the flow guide component 4 is used to input water to be replenished in the water storage tank 2. The outlet of the flow guide component 4 communicates with the inner cavity of the water storage tank 2, thereby inputting water flowing out of the outlet of the flow guide component 4 into the inner cavity of the water storage tank 2. The flow guide component 4 is used to guide at least a portion of the water flowing into the water storage tank 2 to an area near the heating element 3. This area 33 can rapidly heat the clean water near the heating element 3. The outlet of the flow guide component 4 can guide at least a portion of the water flowing into the water storage tank 2 to the area 33 for rapid heating. In this manner, the heating element can rapidly heat at least a portion of the water.

[0060] It should be noted that in the above process, the rapid heating of the water input into the inner cavity of the water storage tank 2 can be specifically understood as the rapid heating of the water input into the inner cavity of the water storage tank 2 within a short period of time, for example, a few seconds or more than ten seconds. The water input into the inner cavity of the water storage tank 2 can be rapidly heated to a relatively high temperature, for example, a temperature above 80 degrees Celsius, a temperature above 85 degrees Celsius, etc. Furthermore, the water input into the inner cavity of the water storage tank 2 can be rapidly heated to an even higher temperature, for example, a temperature close to or equal to 98 degrees Celsius, at which point the water input into the inner cavity of the water storage tank 2 is close to or equal to the temperature of the output hot water.

[0061] In one embodiment, the rapid heating rate reaches at least 0.00012 Kelvin per liter of water per second, corresponding to a heating power of 0.00012 Kelvin per watt. In this embodiment, the water input into the inner cavity of the water storage tank 2 can be rapidly heated to a temperature close to or equal to the temperature of the output hot water, i.e., approximately 98 degrees Celsius.

[0062] As feasible, Figure 1 As shown, the flow guide component 4 may include a flow guide pipe 41. The inlet of the flow guide pipe 41 may extend out of the water storage tank 2 so as to allow replenished water to be input into the water storage tank 2. The outlet of the flow guide pipe 41 may be located within the aforementioned region 33. The flow guide pipe 41 is used to guide at least a portion of the water input into the inlet of the flow guide component 4 to the region 33 near the heating element 3. When the heating element 3 is in the heating state, the temperature of the region 33 near the heating element 3 is very high. When the small amount of water output by the flow guide component 4 is directed to a certain part of the region 33, this small amount of water can be rapidly heated in an instant.

[0063] The greater the heating power of the heating element 3, the greater the distance from the surface of the heating element 3 to the farthest point of the area 33 near the heating element 3 where water can be rapidly heated. In one possible embodiment, the range of the area 33 corresponds to the heating power of the heating element 3 and is specifically within a range of 0.08 mm / W from the outer surface of the heating element 3.

[0064] Generally speaking, the heating power of the heating element 3 is limited. Under the condition that heating requirements are met, the flow rate of water added to the inner cavity of the water storage tank 2 is less than the flow rate of hot water supplied to the user by the water storage tank 2. Therefore, the above-described method can achieve a certain degree of capacity expansion of the water storage tank 2. If the heating power of the heating element 3 can be increased at this time, so that the flow rate of water added to the inner cavity of the water storage tank 2 is greater than or equal to the flow rate of hot water supplied to the user by the water storage tank 2 under the condition that heating requirements are met, the water storage tank 2 can theoretically provide a continuous supply of hot water to the user.

[0065] Based on the above reasons, the water heating device can have a hot water output mode. In the hot water output mode, the heating element 3 is in a heating state, and the hot water in the water tank 2 is output outward. At the same time, the guide component 4 guides at least part of the water flowing into the water tank 2 to an area close to the heating element 3; the water flow rate of the hot water in the water tank 2 output outward is greater than the water flow rate input into the inner cavity of the water tank 2 by the guide component 4.

[0066] Furthermore, if the water input into the inner cavity of the water storage tank 2 is to be quickly heated to a temperature close to or equal to the temperature of the output hot water, that is, a temperature close to 98 degrees Celsius, then in the hot water output mode, the flow rate of the hot water output from the water storage tank 2 will be much greater than the flow rate of the water input into the inner cavity of the water storage tank 2 by the flow guide component 4. For example, when the flow rate of the hot water output from the water storage tank 2 is 2 L / min, the flow rate of the water input into the inner cavity of the water storage tank 2 by the flow guide component 4 is only 0.4 L / min.

[0067] Preferably, the flow guide tube 41 can be made of a material with a high thermal conductivity coefficient, so that the purified water can be better preheated when flowing in the flow guide tube 41. Of course, in other feasible embodiments, the flow guide tube 41 can also be made of a material with a low thermal conductivity coefficient, which is not limited in this application.

[0068] For example, when a water tank outputs hot water to supply a user, the total amount of hot water the user can obtain is limited, and is at most the boiled hot water stored in the water tank. For example, if the maximum amount of hot water stored in the water tank is 2L, then the total amount of hot water the user can obtain is at most 2L. If the water tank has previously output 1L of hot water to supply other people, then the total amount of hot water obtained by subsequent users will only be 1L. At this time, if the amount of hot water required by the user exceeds the amount of boiled hot water stored in the water tank, the user will need to wait for an additional period of time for the water tank to heat the newly input cold water to a boil. This will cause the user to wait too long for water collection, resulting in a poor user experience.

[0069] When the user needs the water heating device to output hot water, the water heating device of the present application can output the heated hot water in the water tank 2 to the user. At the same time, the guide component 4 can add water to the inner cavity of the water tank 2. The guide component 4 guides at least part of the water flowing into the water tank 2 to the area 33 near the heating element 3. The heating element 3 starts heating. Since the water added to the water tank 2 is close to the heating element 3, under the heating effect of the heating element 3, this part of the water can be quickly heated to a higher temperature by the heating element 3 immediately after flowing out of the guide component 4. In this way, this part of the water can also be output normally for use by the user, which can also meet the user's demand for hot water. This not only solves the potential safety hazards of the output of this part of the water, but also increases the total amount of hot water output by the water tank 2 at one time, thereby achieving the effect of expanding the capacity of the water tank 2, reducing the possibility of the user having to wait when they need a large amount of hot water at one time, and improving the user experience.

[0070] For example, if the flow rate of hot water discharged from water tank 2 is 2 L / min, the flow rate of water inputted into the inner cavity of water tank 2 by flow guide component 4 is 0.4 L / min, and the maximum amount of hot water stored in the water tank is 2 L, the above process can be used to output more than 2 L of hot water that meets the temperature requirement while maintaining the normal flow rate of hot water output from water tank 2 (i.e., 2 L / min). This can reach 2.4 L while maintaining the normal flow rate of hot water output from water tank 2. This increases the total amount of hot water that can be outputted from water tank 2 at one time, thereby expanding the capacity of water tank 2. Furthermore, after this, water tank 2 will no longer be able to output hot water at the normal flow rate because the stored hot water is essentially depleted or very low. However, because the water replenished in water tank 2 is close to heating element 3, it can be quickly heated to a higher temperature by heating element 3 immediately after flowing out of flow guide component 4. Therefore, water tank 2 can maintain a flow rate of 0.4 L / min to continuously supply hot water. In this way, the total amount of hot water outputted from the water storage tank 2 at one time can be further increased. As a feasible method, when the user no longer takes hot water, that is, the water supply device stops supplying hot water, the water supply device performs the water replenishment operation again, and after the water replenishment and heating operations are completed, it waits for the user to need hot water next time and then supplies hot water.

[0071] As a feasible method, the flow guide tube 41 can be arranged along the circumferential direction around the heating element 3. At the same time, when the flow guide tube 41 is arranged around the heating element 3, it also extends along the extension direction of the heating element 3, so that the purified water output by the flow guide tube 41 can be evenly distributed to different positions of the heating element 3, thereby ensuring a rapid heating effect on the purified water.

[0072] As feasible, Figure 2This is a structural diagram of the flow guide component and the heating element in the first embodiment of the utility model. Figure 3 for Figure 2 The structure diagram of the middle guide component and heating element at another angle, such as Figure 2 and Figure 3 As shown, at least part of the flow guide tube 41 can also extend along the extension direction of the heating element 3. In this way, the water output by the flow guide tube 41 can be evenly distributed to different positions of the heating element 3 to ensure a rapid heating effect on the water.

[0073] As feasible, Figure 4 This is a structural diagram of the flow guide component and the heating element in the second embodiment of the utility model. Figure 5 for Figure 4 The structure diagram of the middle guide component and heating element at another angle, such as Figure 4 and Figure 5 As shown, the guide component 4 can be bent and then extended back and forth along the extension direction of the heating element 3 and arranged close to the heating element 3. In this way, more guide components 4 can be distributed near the heating element 3. On the one hand, the preheating effect of the water in the guide component 4 can be improved. On the other hand, the water output by the guide pipe 41 can be dispersed to different positions of the heating element 3 in a wider range, further improving the effect of quickly heating the water output to the inner cavity of the water storage tank 2.

[0074] To ensure that the purified water output from the flow conduit 41 is evenly distributed to different locations on the heating element 3, the outlet of the flow conduit 41 may include multiple through-holes on the sidewall of the flow conduit 41, distributed along the extension direction of the heating element 3. The flow conduit 4 outputs the water in the flow conduit 41 to the region 33 through the multiple through-holes. Furthermore, the through-holes are generally oriented toward the heating element 3, so that the water flowing out of the through-holes flows toward the surface of the heating element 3, further enhancing the rapid heating of the water output to the water storage tank 2. Accordingly, one end of the flow conduit 41 is blocked, thereby preventing the water in the flow conduit 41 from flowing out of the one end at a high rate, thereby preventing rapid heating of the water. In other feasible embodiments, one end of the flow conduit 41 may be tapered, or one end of the flow conduit 41 may form an outlet with a smaller cross-section. This approach reduces the flow rate of water flowing out of the one end of the flow conduit 41, for example, to a rate similar to that of water flowing out of the through-holes.

[0075] In one possible implementation, Figure 2 and Figure 3As shown, at least a portion of the heating element 3 can be generally U-shaped. The heating element 3 includes a first section of heating elements 31 and a second section of heating elements 32 arranged in parallel. In the above embodiment, the flow conduit 41 can be located between the first section of heating elements 31 and the second section of heating elements 32. For example, at least a portion of the flow conduit 41 can extend along the extension direction of the first section of heating elements 31 or the second section of heating elements 32. It should be noted that the flow conduit 41 can be located between the first section of heating elements 31 and the second section of heating elements 32. Specifically, the flow conduit 41 can be located above the first section of heating elements 31 and the second section of heating elements 32, below the first section of heating elements 31 and the second section of heating elements 32, or on the same plane as the first section of heating elements 31 and the second section of heating elements 32. In this embodiment, water output from the flow conduit 41 can be heated by both the first section of heating elements 31 and the second section of heating elements 32. This allows the water to be heated more quickly and efficiently.

[0076] Furthermore, the guide component 4 with a through hole can be located above the heating element 3, and the through hole is generally opened downward. In this way, the water flowing out of the through hole first flows downward and is then heated to a certain degree before flowing upward. Through the above flow process, it can be ensured that this part of the water has more time to be fully and quickly heated in the area 33 formed by the heating element 3.

[0077] As feasible, Figure 6 This is a structural diagram of the guide component and the heating element in the third embodiment of the utility model. Figure 7 for Figure 6 The structure diagram of the middle guide component and heating element at another angle, such as Figure 6 and Figure 7 As shown, the flow guide component 4 may include: a sleeve 42 that is mounted over the heating element 3, with the region 33 formed within the sleeve 42; and a connecting piece 43 that connects the interior of the sleeve 42 with the inlet of the flow guide component 4. The connecting piece 43 is used to guide the purified water output by the water purification module 1 to the sleeve 42 within the water storage tank 2. The sleeve 42 ensures that the purified water output by the water purification module 1 remains within the region 33 for a sufficient period of time after entering the sleeve 42, thereby being sufficiently and rapidly heated, rather than arbitrarily diffusing out of the region 33 and failing to ensure rapid heating.

[0078] For example, the casing 42 and the portion of the heating element 3 encased by the casing 42 both extend horizontally, the first end of the casing 42 is in a blocked state, the second end of the casing 42 is in an open state, and the connection point between the connecting piece 43 and the casing 42 is relatively closer to the first end of the casing 42. Because the first end of the casing 42 is in a blocked state, the purified water input into the casing 42 through the connecting piece 43 can only flow toward the second end of the casing 42 to flow out. During this process, the input purified water can spend more time in the area 33 formed in the casing 42, thereby improving the rapid heating effect of the heating element 3 and ensuring that it is quickly heated to a higher temperature when flowing out of the casing 42. Furthermore, the temperature can reach a temperature close to or equal to that of the output hot water.

[0079] Further, Figure 8 This is a structural diagram of the guide component and the heating element in the fourth embodiment of the present utility model. Figure 9 for Figure 8 The structure diagram of the middle guide component and heating element at another angle, such as Figure 8 and Figure 9 As shown, the height from the upper end surface of the first end of the sleeve 42 to the upper end surface of the second end of the sleeve 42 is in an ascending trend. This method can effectively discharge any water vapor that may appear in the sleeve 42, preventing water vapor from accumulating in the sleeve 42 and forming a gaseous region 33, which would prevent the heating element 3 from partially contacting the liquid water in the water storage tank 2, thereby affecting the heating element 3's ability to quickly heat the input water.

[0080] For another example, the sleeve 42 and the portion of the heating element 3 encased within the sleeve 42 extend horizontally, with the first end of the sleeve 42 open and the second end of the sleeve 42 open. This ensures that any water vapor that may be present within the sleeve 42 can be discharged from at least one of its ends, making it less likely that a gaseous region 33 formed by water vapor accumulation will form at either end of the sleeve 42.

[0081] Furthermore, the connection point between the connecting piece 43 and the casing 42 can be located in the middle or near the middle between the first end and the second end of the casing 42. In this way, the clean water input into the casing 42 by the connecting piece 43 can be ensured to be fully and quickly heated regardless of whether it flows to the first end or the second end.

[0082] As feasible, Figures 2 to 5 、 Figure 8 、 Figure 9 As shown, the water tank 2 is provided with a fixing member 21, which is used to fix the flow guide member 4 to improve the stability and firmness of the flow guide member 4. For example, one end of the fixing member 21 is fixedly connected to the wall of the water tank 2, and the other end of the fixing member 21 is connected to the flow guide member 4, such as the end of the flow guide member 4 away from its own inlet.

[0083] Furthermore, in the vertical direction, the height from the upper end surface of the connection point between the connecting piece 43 and the sleeve 42 to the upper end surface of the first end and / or the second end of the sleeve 42 is in an ascending trend. In this way, any water vapor that may appear in the sleeve 42 can be effectively discharged, and the formation of a gaseous region 33 at any position in the sleeve 42 can be avoided.

[0084] The present application also proposes a water supply system, which may include any of the water heating devices described above.

[0085] As feasible, Figure 10 FIG. 1 is a schematic diagram of the structure of a water supply system in one embodiment of the present utility model. Figure 10 As shown, the water supply system may include a water purification module. The water purification module 1 is configured to provide purified water. Alternatively, the water purification module 1 may purify input raw water to produce purified water, which may then be output externally. For example, the water purification module 1 may include a filtration unit configured to filter the raw water to produce purified water. The inlet of the flow guide component 4 may be connected to the outlet of the water purification module 1. The purified water output by the water purification module 1 may be input into the inner cavity of the water storage tank 2 after passing through the flow guide component 4. Figure 11 FIG. 1 is a schematic diagram of the structure of the water supply system in another embodiment of the present utility model. Figure 11 As shown, the filtration unit can include various types of filter cartridges, for example, at least one of the following: a pre-filter cartridge 101, a fine filter cartridge 102, a post-filter cartridge, etc. The fine filter cartridge 102 is a filter cartridge used for fine filtering of water, and can be, for example, a reverse osmosis filter cartridge, a nanofiltration membrane filter cartridge, an ultrafiltration membrane filter cartridge, etc. Different types of filter cartridges can form a composite filter cartridge. The pre-filter cartridge 101 and the post-filter cartridge can also be present in the form of a composite filter cartridge. For example, the pre-filter cartridge 101 can include at least two different filter materials. To increase the rate of water filtration in the filtration unit, the water purification module 1 can include a booster pump 103. The inlet of the water purification module 1 is connected to a water source. The water supply system can include an inlet valve 12, which is used to control the flow of water between the water supply system and the water source. As an option, the inlet valve 12 can be located upstream of the water purification module 1 or within the water purification module 1. In other feasible embodiments, the water purification module 1 can be used to store a certain amount of purified water, and can output the stored purified water. For example, the water purification module 1 can include a purified water storage unit, which is used to store purified water.

[0086] As a feasible option, the water supply system further includes: a hot water output water path, which is connected to the water storage tank. When the user needs the water supply system to output hot purified water, the water supply system can output the hot water in the water storage tank 2 to the user through the hot water output water path 5. At the same time, the guide component 4 inputs the purified water output by the water purification module 1 into the inner cavity of the water storage tank 2 in the area near the heating element 3. Here, the guide component 4 allows the water input into the inner cavity of the water storage tank 2 to be quickly heated to a higher temperature. In the above manner, while the water supply system supplies hot water to the outside, it can also quickly heat the purified water input into the water storage tank 2 by the water purification module 1 through the guide component 4 to a higher temperature. This enables the water storage tank 2 to output a larger amount of hot water at a time, thereby achieving the effect of expanding the capacity of the water storage tank 2. The user can get a larger amount of hot water at a time, reducing the possibility of the user having to wait when they need a large amount of hot water at one time, thereby improving the user experience.

[0087] As feasible, Figure 11 As shown, the water supply system may include a heat exchanger 6 having a first flow channel 61 and a second flow channel 62, wherein the fluid flowing through the first flow channel 61 can exchange heat with the fluid flowing through the second flow channel 62. The inlet of the flow guide component 4 can be connected to the outlet of the water purification module 1 through the first flow channel 61, and one end of the second flow channel 62 can be connected to the water storage tank 2. The water supply system may include a warm water output waterway 7, which is connected to the other end of the second flow channel 62.

[0088] When the user needs warm water, the hot water in the water tank 2 can flow out through the second flow channel 62 and the warm water output water channel 7 in sequence and be supplied to the user. At the same time, the clean water or supplementary water produced by the water purification module 1 can be supplemented into the inner cavity of the water tank 2 through the first flow channel 61 and the flow guide component 4. The clean water flowing through the first flow channel 61 can cool the hot water flowing through the second flow channel 62, thereby obtaining warm water, which can then flow out through the warm water output water channel 7 and be supplied to the user. The water flowing through the first flow channel 61 can be preheated to a certain extent, so that the temperature of the water input into the flow guide component 4 rises. This not only enables the water supply system to output boiled warm water, but also saves the electricity required to heat the water added to the water tank 2. On the basis of the same heating element 3, the water added to the water tank 2 with a larger flow rate can be quickly heated to a higher temperature.

[0089] In order to control the water in the water storage tank 2 to flow into the second flow channel 62 and the warm water output water channel 7, or to flow into the hot water output water channel 5, or to flow into the second flow channel 62 and the warm water output water channel 7 and the hot water output water channel 5 at the same time according to the user's needs, it is feasible that the water supply system includes: a first control unit 8, the first control unit 8 is used to control the water in the water storage tank 2 to flow into the second flow channel 62 and the warm water output water channel 7, or the water in the water storage tank 2 to flow into the hot water output water channel 5, or the water in the water storage tank 2 to flow into the second flow channel 62 and the warm water output water channel 7 and the hot water output water channel 5 at the same time.

[0090] For example, Figure 11 As shown, the first control unit 8 may include a switching valve, which may be disposed at the junction of the inlet of the second flow channel 62 and the inlet of the hot water output waterway 5. The outlet of the water storage tank 2 is connected to the inlet of the switching valve, one outlet of the switching valve is connected to the inlet of the second flow channel 62, and the other outlet of the switching valve is connected to the inlet of the hot water output waterway 5. For another example, the first control unit 8 may include a first on-off valve and a second on-off valve. The first on-off valve may be disposed at the second flow channel 62, and the second on-off valve may be disposed on the hot water output waterway 5.

[0091] As feasible, Figure 11 As shown, the downstream of the hot water output waterway 5 and the warm water output waterway 7 can be merged into a common waterway. In this embodiment, the switching valve is set at the merging position where the hot water output waterway 5 and the warm water output waterway 7 merge to form the common waterway.

[0092] As feasible, Figure 11 As shown, the water supply system may include a drive pump 11. The drive pump 11 may be positioned upstream of the second flow channel 62 and the hot water output channel 5 to drive water from the water storage tank 2 out of the outlet of the water storage tank 2. In this embodiment, the drive pump 11 can drive the water from the water storage tank 2 to the second flow channel 62 of the heat exchanger 6 or the hot water output channel 5, depending on specific needs. If only the hot water output channel 5 is present, the drive pump 11 may be positioned anywhere downstream of the outlet of the water storage tank 2.

[0093] Furthermore, the flow rate of the driving pump 11 can be adjusted, thereby controlling the degree to which the hot water output from the water storage tank 2 is cooled in the heat exchanger 6, thereby controlling the temperature of the warm water output from the warm water output channel 7. For example, when the temperature of the water output from the warm water output channel 7 is higher, the flow rate of the driving pump 11 is greater; when the temperature of the water output from the warm water output channel 7 is lower, the flow rate of the driving pump 11 is lower.

[0094] As feasible, Figure 11As shown, the water supply system may include a one-way valve 14. When the flow guide member 4 is at least partially disposed within the inner cavity of the water storage tank 2, the one-way valve 14 may be disposed between the outlet of the water purification module 1 and the inlet of the flow guide member 4. The one-way valve 14 can be opened from the outlet of the water purification module 1 toward the inlet of the flow guide member 4. Furthermore, the one-way valve 14 may be disposed between the outlet of the first flow channel 61 and the inlet of the flow guide member 4.

[0095] As feasible, Figure 12 FIG. 1 is a schematic diagram of the structure of a water supply system in another embodiment of the present utility model. Figure 12 As shown, the water supply system may include: a cold water output waterway 9, which can be connected to the outlet of the water purification module 1. Through the cold water output waterway 9, the water supply system can directly provide cold purified water to the user. In order to control whether the cold water output by the water purification module 1 is output to the cold water output waterway 9 or the first flow channel 61 of the heat exchanger 6,

[0096] As feasible, Figure 12 As shown, the water supply system may include: a second control unit 10, the second control unit 10 is used to control the purified water output from the outlet of the water purification module 1 to flow into the cold water output waterway 9, or the purified water output from the outlet of the water purification module 1 to flow into the first flow channel 61, or the purified water output from the outlet of the water purification module 1 to flow into both the cold water output waterway 9 and the first flow channel 61. Similarly, the second control unit 10 can have various forms, which can be a switching valve or two on-off valves.

[0097] As feasible, Figure 12 As shown, the cold water output channel 9 can be connected to a water output mechanism 13. The hot water output channel 5 can be connected to the water output mechanism 13. The warm water output channel 7 can be connected to the water output mechanism 13. The water output mechanism 13 can be a mechanism such as a faucet that outputs water to a user. The water output mechanism 13 can output purified water at different temperatures for the user. Alternatively, the water supply system can include the water output mechanism 13.

[0098] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "essentially consisting of..." describing a combination should include the identified elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, ingredients, parts or steps herein also contemplates an embodiment that is essentially composed of these elements, ingredients, parts or steps. By using the term "may", it is intended to illustrate that any attribute described that "may" include is optional. Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "an" used to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.

[0099] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to in detail. The above embodiments are only for illustrating the technical concept and features of the utility model. Their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They are not intended to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.

Claims

1. A water heating device, characterized in that: The water heating device comprises: a water storage tank, wherein the water storage tank is used to store water; a heating element, the heating element being arranged on the water storage tank and extending into the inner cavity of the water storage tank, the heating element being used to heat the water in the water storage tank; A flow guide component is at least partially arranged in the inner cavity of the water storage tank, and the flow guide component is used to guide at least part of the water flowing into the water storage tank to an area close to the heating element. The outlet of the flow guide component is connected to the inner cavity of the water storage tank to input the water flowing out of the outlet of the flow guide component into the inner cavity of the water storage tank.

2. The water heating device according to claim 1, characterized in that The area can quickly heat the water close to the heating element, and the outlet of the guide component can guide at least part of the water flowing into the water storage tank to the area for rapid heating.

3. The water heating device according to claim 2, characterized in that The rapid heating rate is at least 0.00012 Kelvin per liter of water per second corresponding to one watt of heating power.

4. The water heating device according to claim 3, characterized in that The flow guiding component includes a flow guiding pipe, and the flow guiding pipe can guide at least part of the water flowing into the water storage tank into the area.

5. The water heating device according to claim 2, characterized in that The range of the region corresponds to the heating power of the heating element and is specifically within an interval of 0.08 mm / W from the outer surface of the heating element.

6. The water heating device according to claim 4, characterized in that The flow guide tube is circumferentially arranged around the heating element, or at least a portion of the flow guide tube extends along an extension direction of the heating element.

7. The water heating device according to claim 6, characterized in that The guide component is bent and then extends back and forth along the extension direction of the heating element and is arranged close to the heating element.

8. The water heating device according to claim 6, characterized in that The outlet of the guide component includes: a plurality of through holes on the side wall of the guide pipe distributed along the extension direction of the heating element, and the guide component outputs the water in the guide pipe to the area through the plurality of through holes.

9. The water heating device according to claim 8, characterized in that The through hole is generally opened toward the heating element.

10. The water heating device according to claim 8, characterized in that One end of the flow guide tube is in a blocked state.

11. The water heating device according to claim 6, characterized in that At least part of the heating element is generally U-shaped, and the heating element includes a first section of heating element and a second section of heating element arranged in parallel, and the guide tube is located between the first section of heating element and the second section of heating element.

12. The water heating device according to claim 3, characterized in that The flow guide component includes: a sleeve body sleeved outside the heating element, the area is formed in the sleeve body; and a connecting piece connecting the interior of the sleeve body with the inlet of the flow guide component.

13. The water heating device according to claim 12, characterized in that The sleeve and the heating element portion mounted on the sleeve extend in a horizontal direction. The first end of the sleeve is in a blocked state, the second end of the sleeve is in an open state, and the connection between the connecting piece and the sleeve is relatively closer to the first end of the sleeve.

14. The water heating device according to claim 13, characterized in that The height from the upper end surface of the first end of the sleeve to the upper end surface of the second end of the sleeve is in an ascending trend.

15. The water heating device according to claim 12, characterized in that The sleeve and the heating element portion sleeved by the sleeve both extend in a horizontal direction. The first end of the sleeve is in an open state, and the second end of the sleeve is in an open state.

16. The water heating device according to claim 15, characterized in that The connection point between the connecting piece and the sleeve is located in the middle or near the middle between the first end and the second end of the sleeve.

17. The water heating device according to claim 15, characterized in that In the vertical direction, the height from the upper end surface of the connection point between the connecting piece and the sleeve to the upper end surface of the first end and / or the second end of the sleeve is in an ascending trend.

18. The water heating device according to claim 1, characterized in that The water heating device has a hot water output mode. In the hot water output mode, the heating element is in a heating state, and the hot water in the water tank is output outward. At the same time, the guide component guides at least part of the water flowing into the water tank to an area close to the heating element; the water flow rate of the hot water in the water tank output outward is greater than the water flow rate input into the inner cavity of the water tank by the guide component.

19. A water supply system, characterized in that: The water supply system comprises the water heating device according to any one of claims 1 to 18.

20. The water supply system according to claim 19, wherein: The water supply system further includes a hot water output water path, wherein the hot water output water path is connected to the water storage tank.

21. The water supply system according to claim 19, wherein: The water supply system further comprises: A heat exchanger having a first flow channel and a second flow channel, wherein a fluid flowing through the first flow channel can exchange heat with a fluid flowing through the second flow channel, an inlet of the flow guide component can be connected to an outlet of the first flow channel, the inlet of the first flow channel is used to input cold water, and one end of the second flow channel can be connected to the water storage tank; A warm water output water channel is connected to the other end of the second flow channel.

22. The water supply system according to claim 21, characterized in that The water supply system comprises: a hot water output water channel, the hot water output water channel being connected to the water storage tank; The first control unit is used to control the water in the water storage tank to flow into the second flow channel and the warm water output water channel, or the water in the water storage tank to flow into the hot water output water channel, or the water in the water storage tank to flow into the second flow channel and the warm water output water channel and the hot water output water channel at the same time.

23. The water supply system according to claim 21, wherein: The water supply system further comprises: A driving pump is provided upstream of the second flow channel and the hot water output waterway so as to drive the water in the water storage tank to be output from the outlet of the water storage tank.

24. The water supply system according to claim 23, characterized in that The flow rate of the driving pump can be adjusted.

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