Hot water supply device and water purifying and heating integrated device

Abstract

The application discloses a hot water supply device and a water purifying and heating integrated device, and relates to the technical field of water treatment. The hot water supply device comprises a water storage device with a water outlet, a heating element capable of heating water in the water storage device, a water pump, an inlet end of the water pump being communicated with the water outlet, and an exhaust structure on a channel upstream of an impeller of the water pump and downstream of the water outlet, the exhaust structure being capable of communicating the inside of the channel with the atmosphere. The application can solve the problem that when the water storage device discharges hot water through the water pump, the water pump is blocked by air, and the water flow is reduced.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, and in particular to a hot water supply device and an integrated water purification and heating device. Background Technology

[0002] Hot water supply devices are common household or office drinking water appliances. For ease of use, they can have a heating function, allowing them to output both hot and cold water. To ensure the hot water stored in the internal storage mechanism can be dispensed from the water dispenser's outlet, the outlet is typically positioned lower than the storage mechanism, allowing the water to flow out under gravity. Alternatively, the storage mechanism can be a pressurized device connected to a water source, using the pressure of the water source to force the water out of the storage mechanism.

[0003] However, for non-pressurized water storage devices where the hot water supply outlet is not lower than the storage device—for example, in a typical household setting—to save space, the main body of the hot water supply device needs to be installed under the kitchen sink. Simultaneously, for convenient water access, the outlet is connected to a faucet installed on the sink. This necessitates an additional water pump to lift the water from the storage device to the faucet. When the storage device heats cold water, air bubbles form at the heating element, especially when the water is close to boiling. If the user turns on the faucet for hot water, the pump draws the hot water from the storage device. At this point, the air bubbles enter the pump along with the water, causing air entrapment and blockage, leading to reduced water flow. In severe cases, there may be virtually no water output, significantly degrading the user experience. Summary of the Invention

[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 hot water supply device and a water purification and heating integrated device, which can solve the problem that when the water storage device outputs hot water through the water pump, the water pump will be trapped and cause air blockage, resulting in a reduction in the water flow rate.

[0005] The specific technical solution of this invention is as follows:

[0006] A hot water supply device, the hot water supply device comprising:

[0007] A water storage device with an outlet;

[0008] A heating element that can heat water in a water storage device;

[0009] A water pump, wherein the inlet end of the water pump is connected to the outlet end;

[0010] An exhaust structure is located on a channel upstream of the impeller of the water pump and downstream of the outlet, the exhaust structure connecting the interior of the channel to the atmosphere.

[0011] Preferably, the channel includes a first pipe and / or the volute of the water pump; when the channel includes a first pipe, the inlet end of the water pump and the outlet are connected through the first pipe.

[0012] Preferably, the exhaust structure is disposed on the first pipeline.

[0013] Preferably, the first pipeline includes a horizontal section extending in a horizontal direction and a bend section forming a predetermined angle with the horizontal section. One end of the horizontal section is connected to the outlet, and one end of the bend section is connected to the inlet of the water pump. The venting structure is located on the side wall of the horizontal section of the first pipeline.

[0014] Preferably, the exhaust structure includes an exhaust port located at the top of the sidewall of the horizontal section of the first pipeline.

[0015] Preferably, the exhaust structure further includes a second pipe, one end of which is connected to the exhaust port, and the other end of which is at a higher height than the end of the second pipe connected to the exhaust port.

[0016] Preferably, the bent section has a downward extending tendency, and the height of the end of the bent section connected to the inlet end of the water pump is lower than the height of the end of the bent section connected to the horizontal section.

[0017] Preferably, the axis of the water pump is arranged vertically, and the inlet end of the water pump faces upward.

[0018] Preferably, the horizontal section is inclined, and the height of the end of the horizontal section connected to the outlet is lower than the height of the end of the horizontal section connected to the bend section, and the exhaust structure is located at the end of the horizontal section connected to the bend section.

[0019] Preferably, the axis of the water storage device is arranged in a horizontal direction, the water outlet is located at the end of the water storage device, and the axis passes through the end.

[0020] Preferably, the water storage device has an axis and includes a sidewall located circumferentially along its axis, the sidewall having a vacuum structure formed by a double-layered wall.

[0021] Preferably, the water pump is a centrifugal pump.

[0022] Preferably, the exhaust structure is located on the circumferential sidewall of the volute upstream of the impeller of the water pump.

[0023] Preferably, the axis of the water pump is arranged in a horizontal direction, and the exhaust structure is located at the upper end of the circumferential sidewall of the volute.

[0024] Preferably, the exhaust structure includes an exhaust port located at the upper end of the circumferential sidewall of the volute; and a second pipe, one end of which is connected to the exhaust port, and the other end of which is at a height higher than the end of the second pipe connected to the exhaust port, and higher than or equal to the highest liquid level of water that can be stored in the water storage device.

[0025] Preferably, the maximum flow rate of the hot water supply device is greater than or equal to 1.8 L / min.

[0026] Preferably, the inner diameter of the channel is greater than or equal to 12 mm.

[0027] A water purification and heating integrated device, comprising: a hot water supply device as described above; and a water purification unit for purifying water to obtain purified water and supplying the purified water to a water storage device.

[0028] The technical solution of the present invention has the following significant beneficial effects:

[0029] In the hot water supply device of this application, during the heating process, if the device needs to supply hot water to the user, the water pump will start to extract the hot water from the storage device. At this time, air bubbles generated during the heating process of the storage device may enter the outlet and flow towards the water pump along the channel. Because an exhaust structure is provided on the channel located upstream of the impeller of the water pump and downstream of the outlet, the air bubbles will pass through the exhaust structure and be discharged into the atmosphere from the exhaust mechanism as they flow towards the impeller. This effectively avoids the problem of air trapping in the water pump, which can cause air blockage and reduce the water flow rate.

[0030] Specific embodiments of the invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Within the spirit and scope of the appended claims, embodiments of the invention include many changes, modifications, and equivalents. Features described and / or shown 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. Attached Figure Description

[0031] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0032] Figure 1 This is a three-dimensional structural diagram of the hot water supply device in an embodiment of the present invention;

[0033] Figure 2 This is a front view of the hot water supply device in an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the hot water supply device in another embodiment of the present invention.

[0035] The reference numerals in the above figures are as follows:

[0036] 1. Water storage device; 11. Water outlet; 12. End; 13. Side wall; 2. Heating element; 3. Water pump; 31. Inlet end; 4. Exhaust structure; 41. Exhaust port; 42. Second pipeline; 5. Channel; 51. First pipeline; 511. Horizontal section; 512. Bend section; 52. Volute. Detailed Implementation

[0037] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, all of which should be considered within the scope of the invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "connected" should be interpreted broadly, for example, they can refer to mechanical or electrical connections, or internal communication between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to 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.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] To address the problem of reduced water flow caused by air blockage in the water pump when a water storage device dispenses hot water, this application proposes a hot water supply device. Figure 1 This is a three-dimensional structural diagram of the hot water supply device in an embodiment of the present invention. Figure 2 This is a front view of the hot water supply device in an embodiment of the present invention. Figure 3 This is a schematic diagram of the hot water supply device in another embodiment of the present invention, as shown below. Figures 1 to 3 As shown, the hot water supply device may include: a water storage device 1 having an outlet 11; a heating element 2 capable of heating the water in the water storage device 1; a water pump 3, the inlet end 31 of the water pump 3 being connected to the outlet 11; and an exhaust structure 4 located upstream of the impeller of the water pump 3 and downstream of the outlet 11 on a channel 5, the exhaust structure 4 being able to connect the interior of the channel 5 to the atmosphere.

[0040] In the heating process of the hot water supply device in this application, if the hot water supply device needs to supply hot water to the user, the water pump 3 will start to extract the hot water from the water storage device. At this time, the air bubbles generated during the heating process of the water storage device 1 may enter the outlet 11 and flow to the water pump 3 along with the channel 5. Since the channel 5, located upstream of the impeller of the water pump 3 and downstream of the outlet 11, is equipped with an exhaust structure 4, the air bubbles will pass through the exhaust structure 4 and be discharged into the atmosphere from the exhaust mechanism as they flow to the impeller of the water pump 3. This effectively avoids the problem of air entrapment in the water pump 3, which would cause air blockage and reduce the water flow rate.

[0041] To better understand the hot water supply device in this application, it will be further explained and described below. For example... Figures 1 to 3 As shown, the hot water supply device in this application may include: a water storage device 1, a heating element 2, a water pump 3, and an exhaust structure 4.

[0042] like Figures 1 to 3 As shown, the water storage device 1 has a receiving cavity for storing water that needs to be heated. The water storage device 1 may have an outlet 11 and an inlet. The outlet 11 is used to discharge water from the water storage device 1, and the inlet is used to replenish water to the water storage device 1. The outlet 11 and the inlet may be two separate ports, or they may share the same port.

[0043] like Figures 1 to 3 As shown, the heating element 2 is capable of heating the water in the water storage device 1. The heating element 2 can be installed in the receiving cavity within the water storage device 1. The heating element 2 only needs to satisfy the requirement of being able to heat the water in the water storage device 1, and there are no limitations on it in this application. For example, it can be an electric heating rod.

[0044] Preferably, such as Figures 1 to 3 As shown, the heating element 2 can be placed below the receiving cavity in the water storage device 1. In this way, after the heating element 2 heats the water below the receiving cavity, the density of the heated water decreases and it will automatically flow upward. Meanwhile, the water at the lower temperature above the receiving cavity will flow downward under the action of gravity. This allows the water in the receiving cavity to form convection, which helps to improve the heating efficiency of the heating element 2 in the water storage device 1.

[0045] like Figures 1 to 3 As shown, the water pump 3 has an inlet end 31, which is connected to the outlet 11 of the water storage device 1. The water pump 3 can be a pump with an impeller, such as a centrifugal pump. The exhaust structure 4 can be located on the channel 5 upstream of the impeller of the water pump 3 and downstream of the outlet 11. The exhaust structure 4 connects the inside of the channel 5 to the atmosphere. When air bubbles flow through the channel 5, they can be discharged to the atmosphere through the exhaust structure 4 on the channel 5. During the heating process of the water in the water storage device 1, if the hot water supply device needs to supply hot water to the user, the water pump 3 is turned on to draw the hot water in the water storage device through the outlet 11. At this time, the air bubbles generated during the heating process of the water storage device 1 may enter the outlet 11 and flow to the water pump 3 along with the channel 5. As the air bubbles flow to the impeller of the water pump 3, they pass through the exhaust structure 4 and are discharged to the atmosphere from the exhaust structure. This effectively avoids the problem of air entrapment in the water pump 3, which can cause air blockage and reduce the water flow rate.

[0046] As a feasible option, such as Figure 1 The channel 5 shown may include a first conduit 51; or, as Figure 3 As shown, channel 5 may include the volute 52 of pump 3; or, channel 5 may also include the first pipe 51 and the volute 52 of pump 3.

[0047] When channel 5 has the first conduit 51, such as Figure 1 and Figure 2 As shown, the inlet end 31 and outlet 11 of the water pump 3 are connected through the first pipe 51. At this time, the venting structure 4 can be installed on the first pipe 51.

[0048] In the above embodiments, as feasible, such as Figure 1 and Figure 2As shown, the axis of the water storage device 1 can be arranged horizontally. The water storage device 1 includes a side wall 13 located circumferentially along its axis and two opposing ends 12. To achieve better thermal insulation for the water storage device 1, the side wall 13 of the water storage device 1 has a thermal insulation structure. Optionally, the side wall 13 has a vacuum structure formed by double-layer walls, which can achieve excellent thermal insulation. To avoid reducing the thermal insulation performance of the side wall 13, the outlet 11 of the water storage device 1 can be located at the end 12 of the water storage device 1, and the axis of the water storage device 1 passes through the end 12. At the same time, other components can also be installed at the end 12 of the water storage device 1, such as a heating element 2, a temperature measuring element, and a water level measuring element inserted into the receiving cavity of the water storage device 1.

[0049] Since the outlet 11 of the water storage device 1 is located at the end 12 of the water storage device 1, the first pipeline 51 may include a horizontal section 511 extending in a horizontal direction and a bent section 512 forming a predetermined angle with the horizontal section 511. One end of the horizontal section 511 is connected to the outlet 11, and one end of the bent section 512 is connected to the inlet 31 of the water pump 3. The horizontal section 511 of the first pipeline 51 is used to draw water from the end 12 of the water storage device 1. The bent section 512 forms a predetermined angle with the horizontal section 511, such as... Figure 1 and Figure 2 As shown, the preset angle only needs to satisfy the condition that the bent section 512 has a downward tendency, thus ensuring that the water flowing out of the horizontal section 511 has a downward tendency through the bent section 512. That is, the height of the end of the bent section 512 connected to the inlet end 31 of the water pump 3 is lower than the end of the bent section 512 connected to the horizontal section 511, which ensures that air bubbles in the water can smoothly rise to the horizontal section 511 through the bent section 512.

[0050] As a preferred option, such as Figure 1As shown, the exhaust structure 4 can be located on the side wall 13 of the horizontal section 511 of the first pipe 51. When the bubbles generated during the heating process of the water storage device 1 enter the outlet 11 and flow towards the water pump 3 along with the channel 5, that is, through the horizontal section 511 and the bend section 512 of the first pipe 51 in sequence, the bubbles tend to float upwards due to their large buoyancy. However, when the water in the water storage device 1 flows towards the water pump 3 in the channel 5 under the drive of the water pump 3, the water tends to flow towards the water pump 3, and the bubbles mixed in the water will also tend to flow towards the water pump 3 to a certain extent under the push of the water. Therefore, when the bubbles are pushed by the water to the bend section 512, due to the downward extension tendency of the bend section 512, the bubbles can float upwards in the bend section 512 under the action of their own buoyancy. When air bubbles rise to the horizontal section 511 of the first pipe 51, since there is virtually no height difference in the horizontal section 511, it is difficult for the air bubbles to flow from the end of the horizontal section 511 near the bend section 512 to the end near the outlet 11 of the water storage device 1 and thus enter the water storage device 1. The air bubbles will be trapped and accumulate in the horizontal section 511, causing air blockage, which will greatly reduce the water flow rate of the water pump 3. Therefore, the venting structure 4 can include a vent 41, which is located on the side wall 13 of the horizontal section 511 of the first pipe 51. This vent can effectively discharge the air bubbles trapped in the horizontal section 511, allowing the horizontal section 511 to transport water smoothly and ensuring the water flow rate of the water pump 3. Preferably, since the bubbles are also located at the top of the horizontal section 511 of the first pipe 51 and have an upward tendency, the exhaust port 41 can be located at the top of the side wall 13 of the horizontal section 511 of the first pipe 51, which facilitates the discharge of bubbles from the first pipe 51 into the atmosphere.

[0051] As a feasible option, such as Figure 1 and Figure 2 As shown, the outlet 11 of the water storage device 1 is located at the lower end of the end 12 of the water storage device 1, so that the water pump 3 can draw out all the water in the water storage device 1 for the user. When the outlet 11 of the water storage device 1 is located at the lower end of the end 12 of the water storage device 1, it is very close to the position of the heating element 2. During the heating process of the water in the water storage device 1, if the hot water supply device needs to supply hot water to the user, the air bubbles generated by the heating element 2 during the heating process will likely enter the outlet 11, which can easily cause air entrapment in the water pump 3 and cause air blockage. Therefore, the venting structure 4 involved in this application is very important.

[0052] The axis of the water pump 3 can be set in different directions. Preferably, such as... Figure 1 and Figure 2As shown, the inlet end 31 of the water pump 3 tends to face upwards; or the axis of the water pump 3 can be set in the horizontal direction. Of course, it is best to set the axis of the water pump 3 in the vertical direction, with the inlet end 31 of the water pump 3 facing upwards. This can maximize the ability of air bubbles flowing into the inlet end 31 of the water pump 3 or air bubbles inside the water pump 3 to rise to the channel 5, and then rise to the exhaust structure 4 and be discharged into the atmosphere through the exhaust channel 5.

[0053] Preferably, the horizontal section 511 can be inclined, with the end of the horizontal section 511 connected to the outlet 11 at a lower height than the end of the horizontal section 511 connected to the bend section 512. The exhaust structure 4 is located at the end of the horizontal section 511 connected to the bend section 512. This inclination is slight, so that the bubbles rising in the channel 5 can gather at the higher end of the horizontal section 511 of the first pipe 51, and will not disperse to different positions in the horizontal section 511 of the first pipe 51. In this way, the exhaust structure 4 at the higher end of the horizontal section 511 of the first pipe 51 can conveniently and quickly exhaust almost all the bubbles gathered at the higher end of the horizontal section 511 of the first pipe 51 to the atmosphere, maximizing the efficiency of bubble discharge.

[0054] As a feasible option, such as Figure 1 and Figure 2 As shown, the venting structure 4 may include a second pipe 42, one end of which is connected to the vent 41, and the other end of which is higher than the end connected to the vent 41. Preferably, the height of the other end of the second pipe 42 is higher than or equal to the highest liquid level that can be stored in the water storage device 1. Since the vent 41 is connected to the atmosphere, in order to prevent water from leaking out at the vent 41 on the horizontal section 511 of the first pipe 51, the second pipe 42 provides a certain height difference between the vent 41 and the outlet of the second pipe 42, which can hold the water flowing out of the vent 41. When the water pump 3 starts, the water carried in the second pipe 42 will flow back into the first pipe 51 under the action of suction.

[0055] In other embodiments, such as Figure 3 As shown, when the channel 5 contains the volute 52 of the water pump 3, the exhaust structure 4 can be located on the circumferential sidewall 13 of the volute 52 upstream of the impeller of the water pump 3. In this case, the inlet end 31 of the water pump 3 can be directly connected to the outlet 11 of the water storage device 1; or the inlet end 31 of the water pump 3 can be connected to the outlet 11 of the water storage device 1 through the first pipeline 51.

[0056] In this embodiment, the axis of the water pump 3 can also be arranged in different directions. Preferably, such as... Figure 3As shown, the inlet end 31 of the water pump 3 tends to face upwards; or the axis of the water pump 3 can be set in the horizontal direction. Of course, it is best to set the axis of the water pump 3 in the vertical direction, with the inlet end 31 of the water pump 3 facing upwards. This can maximize the ability of air bubbles flowing into the inlet end 31 of the water pump 3 or air bubbles inside the water pump 3 to rise to the channel 5, and then rise to the exhaust structure 4 and be discharged into the atmosphere through the exhaust channel 5.

[0057] In this implementation, as is feasible, such as Figure 3 As shown, the axis of the water storage device 1 can be set horizontally, and the outlet 11 of the water storage device 1 can be set at the end 12 of the water storage device 1. In order to connect the inlet end 31 of the water pump 3 to the outlet 11 of the end 12 of the water storage device 1, the volute 52 between the impeller of the water pump 3 and the inlet end 31 of the water pump 3 can be arc-shaped. The volute 52 of the water pump 3 gradually changes from upward to horizontal or oblique upward in the direction of the impeller and towards the inlet end 31 through the arc-shaped structure.

[0058] In the above embodiment, during the heating process of the water in the water storage device 1, if the hot water supply device needs to supply hot water to the user, the water pump 3 is turned on to draw the hot water in the water storage device out through the outlet 11. At this time, the bubbles generated during the heating process of the water storage device 1 may enter the outlet 11 and flow towards the water pump 3 along with the channel 5. During this process, the bubbles will flow towards the impeller of the water pump 3 with the water, but under the action of their own buoyancy, the bubbles will also flow upward to a certain extent. During the upward flow, the bubbles will impact the side wall 13 of the arc-shaped volute 52, and the bubbles will converge at the circumferential side wall 13 of the volute 52 of the water pump 3. The exhaust structure 4 on the circumferential side wall 13 of the volute 52, located upstream of the impeller of the water pump 3, can discharge the bubbles that converge at the circumferential side wall 13 of the volute 52 of the water pump 3 into the atmosphere.

[0059] Due to the buoyancy of the bubbles themselves, the bubbles converge at the circumferential sidewall 13 of the volute 52 of the water pump 3, and eventually they will accumulate to the maximum extent at the upper end of the circumferential sidewall 13 of the volute 52. Therefore, preferably, the exhaust structure 4 is located at the upper end of the circumferential sidewall 13 of the volute 52, so as to most efficiently exhaust the bubbles in the circumferential sidewall 13 of the volute 52 to the atmosphere.

[0060] As a feasible option, such as Figure 3 As shown, the exhaust structure 4 includes an exhaust port 41 located at the upper end of the circumferential side wall 13 of the volute 52; and a second pipe 42. One end of the second pipe 42 is connected to the exhaust port 41, and the other end of the second pipe 42 is higher than the end connected to the exhaust port 41, and is higher than or equal to the highest liquid level in the water storage device 1. This effectively prevents water inside the volute 52 of the water pump 3 from leaking out through the exhaust port 41.

[0061] In all the above embodiments, when the water pump 3 is turned on, it draws hot water from the water storage device through the outlet 11. At this time, the bubbles generated during the heating process of the water storage device 1 may enter the outlet 11 and flow towards the water pump 3 along with the channel 5. During this process, the bubbles flow towards the impeller of the water pump 3 under the push of the water flow, but the bubbles also flow upward to a certain extent due to their own buoyancy. That is to say, the faster the water flow, the faster the actual flow speed of the bubbles is equal to the difference between the speed of the water flow and the speed at which the bubbles float relative to the water in the water flow. Therefore, when the water flow rate output by the water heating device is large, the speed of the water flow in the channel 5 will inevitably be large. If the inner diameter of the channel 5 is reduced, the speed of the water flow in the channel 5 will be greater than the speed at which the bubbles float relative to the water in the water flow. This will result in the bubbles not having an upward flow speed relative to the channel 5, which may make it difficult for the bubbles to be discharged through the exhaust structure 4. Therefore, experiments have shown that, in order to increase the maximum flow rate of the water heating device so that users can obtain the required amount of water in a short time and improve the user experience, it is feasible for the maximum flow rate of the water heating device to be greater than or equal to 1.8 L / min. In this case, the inner diameter of channel 5 needs to be greater than or equal to 12 mm. This allows for a more compact structure and smaller size of the hot water supply device while reducing the water flow velocity. This includes the inner diameter of the first pipe 51 and / or the volute 52 between the upstream of the impeller of the water pump 3 and the inlet end 31. At the same time, the size range of the inner diameter of the first pipe 51 and the inner diameter of the volute 52 between the upstream of the impeller of the water pump 3 and the inlet end 31 can ensure that the air bubbles have sufficient inner diameter space in the channel 5 to flow upward, or in other words, that the air bubbles have sufficient inner diameter space in the water flowing downward in the channel 5 to flow upward, avoiding the situation where a single air bubble is too large and cannot move upward smoothly in the channel 5 with a small inner diameter.

[0062] This application also proposes an integrated water purification and heating device, comprising: a hot water supply device as described above; and a water purification unit for purifying water to obtain purified water and supplying the purified water to a water storage device 1. The water purification unit can be any of the currently available devices capable of filtering and purifying water, and is not limited thereto in this application.

[0063] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0064] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A hot water supply device, characterized in that, The hot water supply device includes: a water storage device with an outlet; a heating element capable of heating the water in the water storage device; a water pump, the inlet end of which is connected to the outlet; and an exhaust structure located upstream of the impeller of the water pump and downstream of the outlet on a channel, the exhaust structure being able to connect the interior of the channel to the atmosphere; the channel includes a first pipe; the inlet end of the water pump and the outlet are connected through the first pipe; the exhaust structure is disposed on the first pipe; the first pipe includes a horizontal section extending in a horizontal direction and a bend section forming a predetermined angle with the horizontal section, one end of the horizontal section being connected to the outlet, and one end of the bend section being connected to the outlet. The water pump inlet is connected, the bend has a downward extending tendency, and the height of the end of the bend connected to the water pump inlet is lower than the height of the end of the bend connected to the horizontal section; the venting structure is located on the side wall of the horizontal section of the first pipeline; the venting structure includes a vent and a second pipeline, the vent is located at the top of the side wall of the horizontal section of the first pipeline, one end of the second pipeline is connected to the vent, and the height of the other end of the second pipeline is higher than or equal to the highest liquid level of the water that can be stored in the water storage device; the maximum flow rate of the hot water supply device is greater than or equal to 1.8 L / min; the inner diameter of the channel is greater than or equal to 12 mm.

2. The hot water supply device according to claim 1, characterized in that, The water pump's axis is set vertically, and the water pump's inlet end faces upwards.

3. The hot water supply device according to claim 1, characterized in that, The horizontal section is inclined, and the height of the end of the horizontal section connected to the outlet is lower than the height of the end of the horizontal section connected to the bend section. The exhaust structure is located at the end of the horizontal section connected to the bend section.

4. The hot water supply device according to claim 1, characterized in that, The water storage device has its axis arranged horizontally, and the water outlet is located at the end of the water storage device, with the axis passing through the end.

5. The hot water supply device according to claim 1, characterized in that, The water storage device has an axis and includes a sidewall located circumferentially along its axis, the sidewall having a vacuum structure formed by a double-layered wall.

6. The hot water supply device according to claim 1, characterized in that, The water pump is a centrifugal pump.

7. A water purification and heating integrated device, characterized in that, The integrated water purification and heating device includes: a hot water supply device as described in any one of claims 1 to 6; and a water purification unit for purifying water to obtain purified water and supplying the purified water to a water storage device.

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