Water tank of water heater and water heater

Abstract

The utility model relates to the technical field of water heaters, and provides a water tank of a water heater and the water heater. The box body is provided with a liquid storage space and comprises a side coaming; the heat exchanger is arranged in the liquid storage space and used for conducting heat exchange on water used by a user and water in the liquid storage space. The waterway assembly is installed on the side coaming and comprises a water inlet pipe and a water outlet pipe, the water inlet pipe communicates with the inlet end of the heat exchanger, and the water outlet pipe communicates with the outlet end of the heat exchanger. An exhaust channel is integrally formed in the side surrounding plate and communicates with the space above the liquid level in the liquid storage space and the outside. The exhaust channel is integrally formed on the side coaming, so that the volume of the liquid storage space is not occupied, and the liquid storage capacity is effectively improved under the condition that the external dimension of the box body is not changed; in addition, high-temperature steam in the exhaust channel is exhausted from the side coaming and is hidden in the sight of a user, the attractiveness is improved, and meanwhile it is guaranteed that the steam cannot be sprayed to the user.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a water tank of a water heater and a water heater. Background Art

[0002] In the related art, the exhaust pipe of the water heater is usually arranged inside the inner tank, and extends from the top of the liquid level in the inner tank to the bottom, and passes through the inner tank from the bottom of the inner tank, so that the steam above the liquid level is discharged from the exhaust pipe. There is a problem that the exhaust pipe occupies a large volume and affects the liquid storage capacity of the inner tank. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model proposes a water tank of a water heater, wherein an exhaust channel is integrally formed on a side panel to avoid occupying the volume of the liquid storage space and increasing the liquid storage capacity of the water tank of the water heater, and the exhaust channel is arranged on the side panel to avoid the problem of exhaust steam being discharged from the bottom of the tank body and scalding the user.

[0004] The utility model also provides a water heater.

[0005] The water tank of the water heater according to the first embodiment of the utility model comprises:

[0006] A box body is provided with a liquid storage space, and the box body includes a side panel;

[0007] A heat exchanger, disposed in the liquid storage space, for exchanging heat between water used by a user and water in the liquid storage space;

[0008] A water circuit assembly is installed on the side panel, the water circuit assembly includes a water inlet pipe and a water outlet pipe, the water inlet pipe is connected to the inlet end of the heat exchanger, and the water outlet pipe is connected to the outlet end of the heat exchanger;

[0009] The side panel is integrally formed with an exhaust passage, and the exhaust passage connects the space above the liquid level in the liquid storage space with the outside world.

[0010] The water tank of the water heater of the embodiment of the utility model, by integrally forming the exhaust channel with the side panel, does not occupy the volume of the liquid storage space, effectively increases the storable liquid capacity while keeping the external dimensions of the box body unchanged, and improves the heat exchange efficiency between the liquid in the liquid storage space and the water in the heat exchanger; and, the high-temperature steam in the exhaust channel is discharged from the side of the side panel, hidden from the user's line of sight to improve the aesthetics while ensuring that the steam will not spray toward the user, thereby avoiding scalding the user and improving the safety of the water heater; further, the user water in the present application is obtained through heat exchange with the liquid in the liquid storage space through the heat exchanger, and the user water does not contact the components in the liquid storage space of the box body (heating component, valve body, etc.), effectively ensuring the water quality of the user water, and at the same time, impurities or pollutants that may exist in the user water will not cause pollution to the components in the liquid storage space of the box body (such as forming scale on the surface of the heating component), effectively improving the service life of the water heater.

[0011] In addition, an exhaust passage connecting the liquid storage space and the outside world is provided in the present application to ensure that the pressure in the liquid storage space is similar to that in the outside world and no additional pressure is generated on the inner wall of the box. Therefore, the box does not need to be set to a pressure-bearing shape (such as a barrel shape), and the shape of the box can be adaptively adjusted according to the spatial layout requirements of the location of the water heater, thereby improving space utilization.

[0012] According to an embodiment of the present utility model, the exhaust passage extends from the top of the side panel to the bottom of the side panel, and the bottom end of the exhaust passage extends into the liquid in the liquid storage space.

[0013] According to an embodiment of the utility model, a side of the bottom end of the exhaust channel facing away from the liquid storage space is detachably connected with an exhaust branch pipe, and the exhaust branch pipe is fixed to the water outlet pipe.

[0014] According to an embodiment of the utility model, a curved pipe is detachably mounted on a side of the top end of the exhaust passage facing the liquid storage space, and the curved pipe is bent upward and has an opening facing upward.

[0015] According to an embodiment of the present utility model, the exhaust passage is arranged at the rear side of the side panel.

[0016] According to an embodiment of the utility model, the side panel includes an inner panel and an outer panel which are assembled with each other, and the exhaust passage is formed between the inner panel and the outer panel.

[0017] According to an embodiment of the present utility model, the inner enclosure panel is recessed away from the outer enclosure panel to form the exhaust passage between the inner enclosure panel and the outer enclosure panel.

[0018] According to an embodiment of the utility model, the inner enclosure plate is formed with a step surface, the outer enclosure plate is fixed to the step surface, and the side of the inner enclosure plate facing away from the outer enclosure plate is fixed to other adjacent enclosure plates of the box body through an annular sealing ring.

[0019] According to one embodiment of the utility model, the other adjacent enclosures extend toward the interior of the box body to form an annular flange, and the annular sealing ring includes a first sealing ring, a sealing sheet and a second sealing ring which are connected end to end in sequence, an end of the annular flange abuts against the first sealing ring, one side of the annular flange is parallel to and fits against the sealing sheet, and the enclosure is parallel to and fits against the second sealing ring.

[0020] The water heater according to the second aspect of the present invention comprises the water tank of the water heater as described above.

[0021] The beneficial effects of the water heater according to the embodiment of the utility model are the same as the beneficial effects of the water tank of the water heater in the embodiment of the first aspect of the utility model, which will not be repeated here.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of a water heater provided by an embodiment of the utility model;

[0025] Figure 2 It is a right side view of the water heater provided by the embodiment of the utility model;

[0026] Figure 3 yes Figure 2 Sectional view along section line AA;

[0027] Figure 4 yes Figure 3 A magnified view of the local C in the middle;

[0028] Figure 5 yes Figure 3 Enlarged view of part B in the middle.

[0029] Reference numerals:

[0030] 10. Box body; 11. Liquid storage space; 12. Side panel; 121. Exhaust passage; 122. Inner panel; 123. Outer panel; 124. Step surface; 13. Panel; 131. Annular flange;

[0031] 20. Heat exchanger;

[0032] 30. Water circuit assembly; 31. Water inlet pipe; 32. Water outlet pipe;

[0033] 41. Exhaust branch pipe; 42. Elbow pipe;

[0034] 50. annular sealing ring; 51. first sealing ring; 52. sealing sheet; 53. second sealing ring. DETAILED DESCRIPTION

[0035] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0036] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0038] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0040] Combination Figures 1 to 3 As shown, according to the embodiment of the first aspect of the utility model, the water tank of the water heater includes a tank body 10, a heat exchanger 20, and a water circuit assembly 30; the tank body 10 is provided with a liquid storage space 11, and the tank body 10 includes a side panel 12; the heat exchanger 20 is arranged in the liquid storage space 11, and is used to exchange heat between water used by the user and the water in the liquid storage space 11; the water circuit assembly 30 is installed on the side panel 12, and the water circuit assembly 30 includes a water inlet pipe 31 and a water outlet pipe 32, the water inlet pipe 31 is connected to the inlet end of the heat exchanger 20, and the water outlet pipe 32 is connected to the outlet end of the heat exchanger 20; the side panel 12 is integrally formed with an exhaust channel 121, and the exhaust channel 121 connects the space above the liquid surface in the liquid storage space 11 with the outside world.

[0041] In the water tank of the water heater of the embodiment of the utility model, fresh water from the outside enters the heat exchanger 20 from the water inlet pipe 31, and exchanges heat with the heated liquid in the liquid storage space 11. The high-temperature water after heat exchange flows out from the outlet end of the heat exchanger 20 and is provided to the user through the water outlet pipe 32. During the heating process of the liquid in the liquid storage space 11, the liquid evaporates and forms steam that gathers above the liquid surface in the liquid storage space 11. The steam is discharged from the liquid storage space 11 from the side of the side panel 12 through the exhaust channel 121, thereby ensuring the pressure stability in the liquid storage space 11.

[0042] It should be noted that, in the related art, the exhaust pipe of the water heater (corresponding to the exhaust channel 121 of the present application) is usually arranged inside the inner tank (corresponding to the box body 10 of the present application), and extends from the top of the liquid surface in the inner tank to the bottom and passes through the inner tank, so as to discharge the steam above the liquid surface from the exhaust pipe to maintain the pressure in the inner tank stable. However, the exhaust pipe arranged inside the inner tank occupies the space inside the inner tank, resulting in a decrease in the amount of liquid that can be stored in the inner tank.

[0043] The water tank of the water heater of the embodiment of the utility model, by integrally forming the exhaust channel 121 on the side panel 12, does not occupy the volume of the liquid storage space 11, and effectively increases the storable liquid capacity while keeping the external dimensions of the box body 10 unchanged, and improves the heat exchange efficiency between the liquid in the liquid storage space 11 and the water in the heat exchanger 20; and, the high-temperature steam of the exhaust channel 121 is discharged from the side of the side panel 12, hidden from the user's sight to improve the aesthetics while ensuring that the steam will not spray toward the user, thereby avoiding scalding the user and improving the safety of the water heater; further, the user water in the present application is obtained by heat exchange with the liquid in the liquid storage space 11 through the heat exchanger 20, and the user water does not contact the components (heating component, valve body, etc.) in the liquid storage space 11 of the box body 10, effectively ensuring the water quality of the user water, and at the same time, the impurities or pollutants that may exist in the user water will not cause pollution to the components in the liquid storage space 11 of the box body 10 (such as forming scale on the surface of the heating component), effectively improving the service life of the water heater.

[0044] In addition, in the present application, an exhaust passage 121 connecting the liquid storage space 11 and the outside is provided to ensure that the pressure in the liquid storage space 11 is similar to that in the outside and no additional pressure is generated on the inner wall of the box body 10. Therefore, the box body 10 does not need to be set to a pressure-bearing shape (such as a barrel shape), and the shape of the box body 10 can be adaptively adjusted according to the spatial layout requirements of the location of the water heater, thereby improving space utilization.

[0045] In this embodiment, for the convenience of display, Figure 2 The transparent treatment of the side panel 12 only retains the structure of the channel (including the exhaust channel 121).

[0046] In this embodiment, the exhaust passage 121 and the water channel assembly 30 are preferably arranged on the same side panel 12. Figure 1As shown, taking a cubic box 10 as an example, the side panels 12 of the box 10 include a left side panel, a right side panel, a front side panel and a rear side panel. In addition, the box 10 also includes a top panel (top of the paper) and a bottom panel (bottom of the paper). The water channel assembly 30 is arranged on the right side panel, and the exhaust channel 121 is also arranged on the right side panel. Of course, it is not excluded that the exhaust channel 121 and the water channel assembly 30 are arranged on different side panels. Alternatively, when the exhaust channel 121 and the water channel assembly 30 are arranged on the same side panel, the side panel is not limited to the right side panel, but can also be the left side panel or other side panels. Moreover, the shape of the box 10 is not limited to a cube, but can also be a cylinder, other polyhedrons, etc., and the corresponding exhaust channel 121 can be arranged on the side away from the user.

[0047] In this embodiment, the liquid in the liquid storage space 11 can be the same water source as that of the heat exchanger 20, and the possibility of using oil, phase change energy storage materials, etc. is not excluded.

[0048] According to one embodiment of the utility model, combined Figure 3 As shown, the exhaust channel 121 extends from the top of the side panel 12 to the bottom of the side panel 12 , and the bottom end of the exhaust channel 121 extends into the liquid in the liquid storage space 11 .

[0049] It should be noted that the technical solution adopted in the related art to directly discharge steam from the top of the inner tank causes high-temperature steam to be directly discharged to the outside, which may scald external users.

[0050] In this embodiment, since the exhaust channel 121 at least partially extends into the liquid in the liquid storage space 11, the high-temperature steam in the exhaust channel 121 can exchange heat with the liquid in the liquid storage space 11 through the liquid in the liquid storage space 11, especially the liquid at the bottom, so as to condense and cool the steam to form a fluid. The fluid discharged from the exhaust channel 121 is not only of lower temperature but also discharged in the form of dripping, which is safer than the form of steam spraying; and the fluid flows out from the outside of the side panel 12, which is more concealed and beautiful than from the top or bottom of the box body 10; and when the high-temperature steam flows through the bottom area of ​​the liquid storage space 11, it will exchange heat with the liquid with lower temperature in the bottom area of ​​the liquid storage space 11, thereby realizing the heating of the liquid in the bottom area, so that the heat of the high-temperature steam can be reused, effectively reducing the energy consumption of the water heater.

[0051] In this embodiment, the exhaust channel 121 extends from the top to the bottom on the side panel 12. Of course, in order to improve the heat exchange effect between the high-temperature steam and the liquid in the liquid storage space 11, the exhaust channel 121 can also be set to be a channel with multiple bending sections to extend the length of the exhaust channel 121, lengthen the heat exchange time between the steam and the liquid in the liquid storage space 11 to improve the heat exchange effect.

[0052] In this embodiment, a receiving component may be further provided on the outlet side of the exhaust channel 121 to receive the condensed fluid and prevent the fluid from dripping to the outside, especially to the location where the user is located.

[0053] According to one embodiment of the utility model, combined Figure 4 The exhaust branch pipe 41 is detachably connected to the side of the bottom end of the exhaust passage 121 facing away from the liquid storage space 11, and the exhaust branch pipe 41 is fixed to the water outlet pipe 32. The detachably connected exhaust branch pipe 41 eliminates the need for integrally forming a structure protruding from the surface of the side panel 12 on the side panel 12, thereby achieving an exhaust effect and reducing the manufacturing difficulty of the side panel 12; and the exhaust branch pipe 41 is fixedly connected to the water outlet pipe 32, thereby reducing the stress on the connection structure between the water inlet or water outlet of the water outlet pipe 32 and the side panel 12, ensuring that the water outlet pipe 32 can be stably connected to the side panel 12, while improving the sealing effect of the connection structure between the water outlet pipe 32 and the side panel 12.

[0054] In this embodiment, the exhaust branch pipe 41 is sleeved on the pipe joint extending from the side panel 12, and a quick-release structure, such as a quick connector, is formed between the two. Of course, based on the outlet position of the exhaust channel 121, the fixing form of the exhaust branch pipe 41 on the water channel assembly 30 can be adaptively adjusted. For example, when the pipe joint for exhaust on the side panel is located near the water inlet pipe 32, the exhaust branch pipe 41 can also be arranged on the water inlet pipe 32.

[0055] According to one embodiment of the utility model, combined Figure 1 As shown, a curved pipe 42 is detachably mounted on one side of the top end of the exhaust passage 121 facing the liquid storage space 11 , and the curved pipe 42 is bent upward and has an opening facing upward.

[0056] In this embodiment, the detachably connected elbow 42 eliminates the need for an integrally formed structure (such as by injection molding, stamping, etc.) on the side panel 12 to protrude from the surface of the side panel 12, and avoids the exhaust passage 121 being close to the edge of the side panel 12, which would cause the wall thickness at the edge of the side panel 12 to be too thin, making injection molding or stamping difficult. This achieves the exhaust effect while reducing the manufacturing difficulty of the side panel 12. The elbow 42 effectively increases the height of the inlet end of the exhaust passage 121, preventing the liquid in the box 10 from oscillating and overflowing from the exhaust passage 121.

[0057] In the present embodiment, the bend pipe 42 is bent from the side panel 12 to the center of the box body 10. It can be understood that by extending the length of the bend pipe 42, the inlet end of the exhaust channel 121 is closer to the center of the box body 10. The closer the exhaust is to the center of the box body 10, the more conducive it is to balancing the local pressure above the liquid surface in the box body 10, thereby improving the service life of the box body 10.

[0058] According to one embodiment of the utility model, combined Figure 1 and Figure 2 As shown, the exhaust passage 121 is arranged at the rear side of the side panel 12. The corresponding water channel assembly 30 is connected to the front side of the side panel 12. When the user is in the process of using the water heater, the user is located at the front side of the box body 10 (i.e. Figure 1 In the left side of the paper in the figure, in the user's field of vision, the exhaust pipeline is hidden behind the water inlet path assembly 30, and the setting is hidden from the appearance to improve the aesthetics; and the exhaust end of the exhaust channel 121 is set away from the user, which effectively ensures the safety of the user during the exhaust process, and at the same time reduces the noise received by the user at the outlet end of the exhaust channel 121 (such as the dripping sound of the condensed fluid).

[0059] According to one embodiment of the utility model, combined Figure 5 As shown, the side panel 12 includes an inner panel 122 and an outer panel 123 which are assembled with each other, and the exhaust passage 121 is formed between the inner panel 122 and the outer panel 123. Splitting the side panel 12 facilitates the manufacturing of the passage (including the exhaust passage 121) on the side panel 12 during the manufacturing process (for example, on the basis of injection molding or stamping, the passage can also be directly machined on the inner panel 122 or the side panel 12 in the form of machining; and facilitates the disassembly and cleaning of the inner surface of the exhaust passage 121.

[0060] In this embodiment, the exhaust channel 121 is arranged on the inner panel 122. Of course, the exhaust channel 121 can also be partially arranged on the inner panel 122 and the other part arranged on the outer panel 123; or the exhaust channel 121 can be arranged on the outer panel 123 to ensure that its structural form is easy to process.

[0061] According to one embodiment of the utility model, combined Figure 5 As shown, the inner panel 122 is recessed away from the outer panel 123 to form an exhaust passage 121 between the inner panel 122 and the outer panel 123. Since the exhaust passage 121 is formed by the recess of the inner panel 122, the recessed structure is hidden inside the box body 10, that is, in the user's field of vision, there is no large-area protrusion or recessed structure on the side panel 12 of the box body 10, and the flat outer panel 123 ensures the convenience of installing other components (such as the water channel component 30, the electric control component) on the side panel 12.

[0062] In this embodiment, combined with Figure 1As shown, a water circuit assembly 30 is installed on the side panel 12, and the water circuit assembly 30 is located on the front side of the lower area of ​​the side panel 12. The exhaust passage 121 is arranged on the rear side of the side panel 12, and the outlet end is located on the rear side of the lower area of ​​the side panel 12. The space reserved in the upper area of ​​the side panel 12 can be used to install an electronic control component (not shown in the figure) to prevent the electronic control component from being damaged by water leakage of the water circuit assembly 30 or steam or condensed fluid leakage in the exhaust passage 121.

[0063] According to one embodiment of the utility model, combined Figure 5 As shown, the inner panel 122 is formed with a step surface 124, the outer panel 123 is fixed to the step surface 124, and the side of the inner panel 122 facing away from the outer panel 123 is fixed to other adjacent panels 13 of the box body 10 through an annular sealing ring 50. The annular sealing ring 50 ensures the sealing effect between the side panel 12 and other adjacent panels 13, preventing the liquid in the liquid storage space 11 from leaking from the connection gap between the side panel 12 and other panels 13, and the step surface 124 expands the fitting area between the inner panel 122 and the outer panel 123, thereby improving the sealing and fixing effect between the two.

[0064] In this embodiment, the annular sealing ring 50 is adapted to the rectangular structure of the side panel 12 and is in a rectangular ring shape. Of course, the shape of the annular sealing ring 50 can be adaptively adjusted based on the side panel 12 of different shapes.

[0065] According to one embodiment of the utility model, combined Figure 5 As shown, other adjacent enclosures 13 extend toward the interior of the box body 10 to form an annular flange 131, and the annular sealing ring 50 includes a first sealing ring 51, a sealing sheet 52, and a second sealing ring 53 which are connected end to end in sequence, and the end of the annular flange 131 abuts against the first sealing ring 51, one side of the annular flange 131 is parallel to and fits with the sealing sheet 52, and the enclosure 13 is parallel to and fits with the second sealing ring 53.

[0066] In this embodiment, the corner surface formed between the annular flange 131 and the side panel 13 is adapted to the curvature structure of the step surface 124, so that the overall deformation of the annular sealing ring 50 pressed between the annular flange 131 and the side panel 12 is nearly consistent, avoiding excessive local deformation of the annular sealing ring 50 and reducing the service life. In addition, the annular flange 131 can effectively increase the fitting area between the side panel 13 and the annular sealing ring 50, and effectively improve the sealing effect between the side panel 12 and the remaining panels 13.

[0067] In this embodiment, a first sealing ring 51, a sealing sheet 52 and a second sealing ring 53 are provided corresponding to an annular flange 131. It can be understood that the surface of the annular flange 131 can also form a step-like structure, and then the annular sealing ring 50 needs to be provided with more sealing rings and sealing sheets 52 according to the step-like structure on the annular flange 131 to increase the fitting area and improve the sealing effect.

[0068] The water heater according to the second aspect of the present invention comprises a water tank as in the above embodiment. In addition to the water tank, the water heater also mainly comprises a shell (not shown in the figure) arranged outside the water tank.

[0069] The beneficial effects of the water heater according to the embodiment of the utility model are the same as the beneficial effects of the water tank of the water heater in the embodiment of the first aspect of the utility model, which will not be repeated here.

[0070] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A water tank for a water heater, characterized in that: include: A box body is provided with a liquid storage space, and the box body includes a side panel; A heat exchanger, disposed in the liquid storage space, for exchanging heat between water used by a user and water in the liquid storage space; A water circuit assembly is installed on the side panel, the water circuit assembly includes a water inlet pipe and a water outlet pipe, the water inlet pipe is connected to the inlet end of the heat exchanger, and the water outlet pipe is connected to the outlet end of the heat exchanger; The side panel is integrally formed with an exhaust passage, and the exhaust passage connects the space above the liquid level in the liquid storage space with the outside world.

2. The water tank of the water heater according to claim 1, characterized in that: The exhaust passage extends from the top of the side panel to the bottom of the side panel, and the bottom end of the exhaust passage extends into the liquid in the liquid storage space.

3. The water tank of the water heater according to claim 2, characterized in that: An exhaust branch pipe is detachably connected to a side of the bottom end of the exhaust channel facing away from the liquid storage space, and the exhaust branch pipe is fixed to the water outlet pipe.

4. The water tank of the water heater according to claim 1, characterized in that: A bent pipe is detachably mounted on one side of the top end of the exhaust passage facing the liquid storage space, and the bent pipe is bent upward with its opening facing upward.

5. The water tank of the water heater according to claim 1, characterized in that: The exhaust passage is arranged at the rear side of the side panel.

6. The water tank of the water heater according to any one of claims 1 to 5, characterized in that: The side panel includes an inner panel and an outer panel which are assembled with each other, and the exhaust passage is formed between the inner panel and the outer panel.

7. The water tank of the water heater according to claim 6, characterized in that: The inner enclosure panel is recessed away from the outer enclosure panel to form the exhaust passage between the inner enclosure panel and the outer enclosure panel.

8. The water tank of the water heater according to claim 6, characterized in that: The inner enclosure plate is formed with a step surface, the outer enclosure plate is fixed to the step surface, and the side of the inner enclosure plate facing away from the outer enclosure plate is fixed to other adjacent enclosure plates of the box body through an annular sealing ring.

9. The water tank of the water heater according to claim 8, characterized in that: The other adjacent enclosures extend toward the interior of the box body to form an annular flange, and the annular sealing ring includes a first sealing ring, a sealing sheet, and a second sealing ring which are connected end to end in sequence, an end of the annular flange abuts against the first sealing ring, one side of the annular flange is parallel to and fits the sealing sheet, and the enclosure is parallel to and fits the second sealing ring.

10. A water heater, characterized in that: A water tank comprising the water heater as claimed in any one of claims 1 to 9.

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