Water tank for water heater and gas water heating device

Abstract

The invention relates to the technical field of water heating, and particularly discloses a water tank for a water heater and a gas water heating device.The water tank for the water heater comprises a container body, a water inlet pipe, a water outlet pipe, a water inlet pipe and a water outlet pipe, the heating piece is arranged on the container body and is used for heating water in the container body; the communicating pipe is communicated with the water inlet part and the water outlet part, and at least part of the communicating pipe is located in the container body; a water outlet hole and a water inlet hole are formed in the communicating pipe; the water outlet hole is formed in the part, close to the bottom of the container body, of the communicating pipe, and the water inlet hole is formed in the part, close to the top of the container body, of the communicating pipe. Through the scheme, the water constant temperature experience of a user can be improved.

Description

Technical Field

[0001] The present invention relates to the field of water heating technology, and in particular to a water tank for a water heater and a gas water heater. Background Art

[0002] When users use hot water, it takes a certain amount of time for the gas water heater to heat the cold water to the set temperature. Users often complain about the long waiting time for hot water, especially when using water at a small flow rate in the kitchen. In addition, when using hot water, the flow rate increases due to conditions such as multiple water uses, which increases the heat load required by the machine and the hot water cannot be heated in time. Or when using hot water, after stopping the water use for a short time and then using the water again, the temperature of the water in the heat exchanger exceeds the temperature required by the user, which may scald the user. After ignition, the water heater will also output a section of cold water. The user will clearly feel that the water from the shower or faucet is very hot at first and then cools down and then returns to normal, which is the hot and cold water sandwich phenomenon, resulting in a poor user experience when using hot water.

[0003] To address the above problems, no effective solution has been proposed yet. Summary of the invention

[0004] The embodiments of this specification provide a water tank for a water heater and a gas water heater device to solve the problem of poor hot water experience for users in water heaters in the prior art.

[0005] The embodiment of this specification provides a water tank for a water heater, comprising:

[0006] A gallbladder body, wherein the gallbladder body has a water inlet and a water outlet;

[0007] A heating element, the heating element is arranged on the gallbladder body and is used to heat the water in the gallbladder body;

[0008] A connecting pipe, the connecting pipe connects the water inlet and the water outlet, the connecting pipe is at least partially located in the bile body; the connecting pipe is provided with a water outlet hole and a water inlet hole;

[0009] The water outlet hole is arranged on a portion of the tube body of the connecting tube close to the bottom of the bile body, and the water inlet hole is arranged on a portion of the tube body close to the top of the bile body.

[0010] In one embodiment, the connecting pipe comprises an inlet and an outlet, the inlet of the connecting pipe is connected to the water inlet, and the outlet of the connecting pipe is connected to the water outlet.

[0011] In one embodiment, water flowing in from the water inlet enters the connecting tube, part of the water entering the connecting tube enters the bile body from the water outlet hole, and part of the water flows toward the water outlet, and the heated water in the bile body can flow into the connecting tube from the water inlet hole.

[0012] In one embodiment, the water inlet and the water outlet are a water inlet and a water outlet formed on the bile body, and the connecting pipe extends into the bile body through the water inlet and extends out of the bile body through the water outlet.

[0013] In one embodiment, the connecting pipe is provided with a water inlet connection joint and a water outlet connection joint, the water inlet connection joint is close to the inlet of the connecting pipe and is sealedly connected to the water inlet, and the water outlet connection joint is close to the outlet of the connecting pipe and is sealedly connected to the water outlet.

[0014] In one embodiment, the water inlet connection joint and the water outlet connection joint are both flanges, and the water inlet connection joint is fixedly connected to the gallbladder body around the water inlet; the water outlet connection joint is fixedly connected to the gallbladder body around the water outlet.

[0015] In one embodiment, the connecting pipe is a tube.

[0016] In one embodiment, a guide structure is provided on the connecting pipe, and the guide structure is used to guide the water flowing out of the water outlet to the lower space of the gallbladder body.

[0017] In one embodiment, a guide structure is provided on the connecting pipe, and the guide structure is used to guide the water flowing out of the water outlet to the surface of the heating element.

[0018] In one embodiment, the flow guiding structure is a water retaining cap, and the flow guiding structure is fixedly connected to the outer wall of the connecting pipe.

[0019] In one embodiment, the portion of the heating element extending into the gallbladder body is located in the lower space of the gallbladder body.

[0020] In one embodiment, the heating element is of a spiral type or a coil type.

[0021] In one embodiment, the connecting pipe passes through an inner space formed by the coiling of the heating element.

[0022] In one embodiment, the inlet of the connecting pipe extends into the water inlet portion to communicate with the water inlet portion, and / or the outlet of the connecting pipe extends into the water outlet portion to communicate with the water outlet portion.

[0023] In one embodiment, the water inlet portion has one end sealed with the bile body and another end away from the bile body, and the water inlet portion further has a peripheral wall located between the one end and the other end.

[0024] In one embodiment, a water inlet is formed on the peripheral wall of the water inlet portion.

[0025] In one embodiment, the inlet of the connecting pipe is arranged on the pipe body of the connecting pipe located in the water inlet portion and faces the peripheral wall or the water inlet.

[0026] In one embodiment, the water inlet is protruded from the peripheral wall in a direction away from the water inlet portion.

[0027] In one embodiment, there is a gap between the connecting pipe and the peripheral wall.

[0028] In one embodiment, the other end of the water inlet is sealedly connected to the end of the connecting pipe away from the gallbladder body.

[0029] In one embodiment, a boss is provided on the outer peripheral surface of the end of the connecting pipe away from the bile body, and the boss abuts against the other end of the water inlet portion.

[0030] In one embodiment, the water tank for the water heater also includes a plug, the other end of which has an opening, the opening being connected to the interior of the tank body, the plug being detachably connected to the other end for sealing the opening, and the plug enabling the boss to be clamped between the other end of the water inlet and the inner wall of the plug.

[0031] In one embodiment, the material of the tube body of the connecting tube located in the water inlet part is plastic or rubber, and the material of the connecting tube located inside the gallbladder body is stainless steel.

[0032] In one embodiment, the water outlet is sealed and connected to the bladder body.

[0033] In one embodiment, the water tank for the water heater further includes a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is located in the upper space inside the tank body, and the second temperature sensor is located in the lower space inside the tank body.

[0034] In one embodiment, the water inlet portion is a water inlet pipe, and the water inlet is protrudingly provided on the peripheral wall of the water inlet pipe.

[0035] In one embodiment, the water inlet is located at the bottom of the bile body, and the water outlet is located at the top of the bile body.

[0036] In one embodiment, the water outlet hole is located on a portion of the tube body of the connecting tube close to the water inlet portion, and the water inlet hole is located on a portion of the tube body of the connecting tube close to the water outlet portion.

[0037] In one embodiment, the water inlet and the water outlet are arranged opposite to each other or substantially opposite to each other.

[0038] In one embodiment, the water inlet and the water outlet are both located at the bottom of the bile body.

[0039] In one embodiment, the connecting tube has a partial tube body located between the inlet and the outlet of the connecting tube and close to the top of the bile body, the water inlet hole is located on the partial tube body close to the top of the bile body, and the water outlet hole is located on the partial tube body of the connecting tube close to the water inlet.

[0040] In one embodiment, the water inlet and the water outlet are both located at the top of the bile body.

[0041] In one embodiment, the connecting tube has a partial tube body located between the inlet of the connecting tube and the outlet of the connecting tube and close to the bottom of the bile body, the water outlet is located in the partial tube body close to the bottom of the bile body, and the water inlet is located on the partial tube body of the connecting tube close to the water outlet.

[0042] In one embodiment, the water inlet is located at the top of the bile body, and the water outlet is located at the bottom of the bile body.

[0043] In one embodiment, the connecting tube has a partial tube body located between the inlet of the connecting tube and the outlet of the connecting tube and close to the bottom of the bile body, the connecting tube has a partial tube body located between the inlet of the connecting tube and the outlet of the connecting tube and close to the top of the bile body, the water outlet is located in the partial tube body close to the bottom of the bile body, and the water inlet is located in the partial tube body close to the top of the bile body.

[0044] In one embodiment, the water inlet is located at the bottom of the bile body, the water outlet is located at the side of the bile body, and the water outlet is higher than the water inlet in the height direction.

[0045] In one embodiment, the portion of the tube body located between the inlet of the connecting tube and the outlet of the connecting tube has a bending portion close to the top of the bile body, and the water inlet hole is located at the bending portion or the water inlet hole is located on the portion of the tube body of the connecting tube close to the water outlet, and the water outlet hole is located on the portion of the tube body of the connecting tube close to the water inlet.

[0046] In one embodiment, the water inlet and the water outlet are both located on the side of the bile body.

[0047] In one embodiment, the water outlet hole is located on a portion of the tube body of the connecting tube close to the water inlet portion, and the water inlet hole is located on a portion of the tube body of the connecting tube close to the water outlet portion.

[0048] In one embodiment, the water outlet is located on a portion of the tube body near the bottom of the bile body, the water inlet is located on a portion of the tube body near the top of the bile body, and the portion of the tube body where the water outlet is located is located upstream of the portion of the tube body where the water inlet is located.

[0049] In one embodiment, the water outlet is higher than the water inlet in height direction.

[0050] The embodiments of this specification also provide a gas water heater, comprising: a heat exchanger and a water tank for a water heater as described in any of the above embodiments, wherein water flowing out of the heat exchanger flows into a water inlet of the water tank for a water heater and flows out from a water outlet of the water tank for a water heater.

[0051] In one embodiment, the gas water heater comprises a shell, and the water tank for the water heater is arranged in the shell.

[0052] In one embodiment, in the height direction, the water outlet is located above the water inlet, and the water flowing out of the heat exchanger enters from below the water tank of the water heater and flows out from above the water tank of the water heater.

[0053] In one embodiment, the water tank for the water heater further comprises at least one hanging ear, and the water tank for the water heater is connected to the back plate or the side plate of the shell of the gas water heater through the hanging ear.

[0054] In one embodiment, the water inlet at least partially extends out of the shell, the water inlet of the water inlet is arranged in the shell, an opening is arranged on the part of the water inlet extending out of the shell, the opening is connected with the interior of the bile body, and a plug is arranged on the opening for sealing the opening.

[0055] In one embodiment, a limiting plate is provided on the peripheral wall of the water inlet portion, and the limiting plate is provided inside the shell. The limiting plate is used to abut against the bottom plate of the shell to limit the water tank of the water heater.

[0056] The technical solution of this specification has the following significant beneficial effects:

[0057] The heating element in the water tank of the water heater can heat the water in the gallbladder body, and the water inlet and the water outlet of the gallbladder body are connected through the connecting pipe. A part of the water entering the connecting pipe from the outside of the gallbladder body can flow out into the gallbladder body through the water outlet hole set on the part of the tube body near the bottom of the gallbladder body, so that the water in the gallbladder body enters the connecting pipe through the water inlet hole, and is mixed with another part of the water entering the connecting pipe from the outside of the gallbladder body and then discharged. When the water entering the connecting pipe from the outside of the gallbladder body is low-temperature water and the water inside the gallbladder body is high-temperature water, the water temperature flowing out of the connecting pipe can be increased through the above-mentioned water heater water tank, and constant temperature hot water is output, avoiding users from using cold water and shortening the time users wait for hot water. When the water entering the connecting pipe from the outside of the gallbladder body is high-temperature water and the water inside the gallbladder body is low-temperature water compared to the temperature of the inlet water, the water temperature flowing out of the connecting pipe can be reduced through the above-mentioned water heater water tank, avoiding users from using particularly hot high-temperature water. Therefore, through the above-mentioned structure, constant temperature hot water can be output, avoiding users from using cold water or hot water with too high a temperature when using water, and can effectively improve the user's constant temperature experience of water use.

[0058] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Features described and / or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, combined with features in other embodiments, or replace features in other embodiments.

[0059] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, parts or components, but does not exclude the presence or addition of one or more other features, parts or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes and are used to help understand the present invention. They do not specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances. In the drawings:

[0061] Figure 1 It shows a schematic diagram of the structure of a water tank for a water heater in one embodiment of the specification;

[0062] Figure 2 It shows a schematic diagram of the structure of a water tank for a water heater in one embodiment of the specification;

[0063] Figure 3 It shows a schematic diagram of the structure of a water tank for a water heater in one embodiment of the specification;

[0064] Figure 4 It shows a schematic diagram of the structure of a water tank for a water heater in one embodiment of the specification;

[0065] Figure 5 It shows a schematic diagram of the structure of a water tank for a water heater in one embodiment of the specification;

[0066] Figure 6 It shows a schematic diagram of the structure of a water tank for a water heater in one embodiment of the specification;

[0067] Figure 7 It shows a schematic diagram of the structure of a water tank for a water heater in one embodiment of the specification;

[0068] Figure 8 It shows a schematic diagram of the structure of a water tank for a water heater in one embodiment of the specification;

[0069] Fig. 9 It shows a schematic diagram of the structure of a water tank for a water heater in one embodiment of the specification;

[0070] Fig.10 It shows a schematic diagram of the structure of a water tank for a water heater in one embodiment of the specification;

[0071] Fig.11 It shows a schematic diagram of the structure of a water tank for a water heater in one embodiment of the specification;

[0072] Fig.12 It shows a schematic diagram of the structure of a water tank for a water heater in one embodiment of the specification;

[0073] Fig.13 A schematic diagram of the structure of a gas water heater in one embodiment of the present specification is shown.

[0074] Reference numerals in the above drawings:

[0075] 10. Water tank for water heater; 101. Tank; 102. Heating element; 103. Connecting pipe; 104. First temperature sensor; 105. Second temperature sensor; 106. Hanging ear; 107. Limiting plate; 111. Water inlet; 112. Water outlet; 1111. One end of water inlet; 1112. The other end of water inlet; 1113. Peripheral wall; 1114. Water inlet; 131. Water outlet hole; 132. Water inlet hole; 133. Inlet; 134. Outlet; 135. Water inlet connecting joint; 136. Water outlet connecting joint; 137. Guide structure; 138. Boss; 139. Plug; 20. Heat exchanger; 30. Shell. DETAILED DESCRIPTION

[0076] The principles and spirit of this specification will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are provided only to enable those skilled in the art to better understand and implement this specification, and are not intended to limit the scope of this specification in any way. On the contrary, these embodiments are provided to make this specification more thorough and complete, and to fully convey the scope of this disclosure to those skilled in the art.

[0077] This specification provides a water heater water tank. Figures 1 to 12 , respectively show the structural schematic diagrams of the water tanks of water heaters in different embodiments of this specification. Figures 1 to 12 As shown, a water tank 10 for a water heater provided in one embodiment of the present specification may include: a body 101 , a heating element 102 and a connecting pipe 103 .

[0078] The gallbladder body 101 may have a water inlet 111 and a water outlet 112. The gallbladder body 101 may be a container for containing water.

[0079] The heating element 102 may be disposed on the bile body 101 and may be used to heat the water in the bile body 101. Figures 1 to 12 As shown, the heating element 102 may be at least partially disposed in the inner space of the bile body 101, for heating the water in the bile body 101. The heating element 102 may be a heating device such as an electric heating rod.

[0080] The connecting tube 103 can connect the water inlet 111 and the water outlet 112. The connecting tube 103 can be at least partially located in the bile body 101. The connecting tube 103 can be provided with a water outlet hole 131 and a water inlet hole 132. The water outlet hole 131 can be provided on the part of the connecting tube 103 near the bottom of the bile body 101. The water inlet hole 132 can be provided on the part of the connecting tube 103 near the top of the bile body 101.

[0081] In some embodiments of the present specification, water flowing in from the water inlet 111 enters the connecting tube 103. Part of the water entering the connecting tube 103 enters the gallbladder body 101 from the water outlet 131, and part of the water flows to the water outlet 112. The heated water in the gallbladder body 101 can flow into the connecting tube 103 from the water inlet 132.

[0082] When the water entering the connecting tube 103 from the outside of the gallbladder body 101 is low-temperature water and the water inside the gallbladder body 101 is high-temperature water, the above structure can increase the temperature of the water flowing out of the connecting tube 103 to output hot water at a constant temperature, thereby avoiding the user from using cold water and shortening the time the user spends waiting for hot water. When the water entering the connecting tube 103 from the outside of the gallbladder body 101 is high-temperature water and the water inside the gallbladder body 101 is low-temperature water compared to the temperature of the inlet water, the above structure can reduce the temperature of the water flowing out of the connecting tube 103 to output hot water at a constant temperature, thereby avoiding the user from using extremely hot high-temperature water.

[0083] For example, when a user wants to use hot water quickly, the water tank of the water heater can reduce the time the user has to wait for hot water. However, for a water heater that is not equipped with the water tank of the water heater in this embodiment, it takes a period of time for the user to use hot water after heat exchange through the heat exchanger, and the user has to wait for a long time for hot water.

[0084] For another example, when a user turns off the water after taking a shower and then turns on the water heater, there will be a section of particularly hot water (after the user turns off the water, the water in the water heater stops flowing, and the temperature of the water inside the heat exchanger will continue to rise, resulting in a section of high-temperature water). By providing the above-mentioned water tank for the water heater, the user can be prevented from using this section of particularly hot water.

[0085] In the above embodiment, the water in the gallbladder body can be heated by the heating element, and the water inlet and the water outlet of the gallbladder body are connected by the connecting pipe. A part of the water entering the connecting pipe from the outside of the gallbladder body can flow out into the gallbladder body through the water outlet hole set on the part of the tube body near the bottom of the gallbladder body, so that the water in the gallbladder body enters the connecting pipe through the water inlet hole, and is mixed with another part of the water entering the connecting pipe from the outside of the gallbladder body and then discharged. When the water entering the connecting pipe from the outside of the gallbladder body is low-temperature water and the water inside the gallbladder body is high-temperature water, the water temperature flowing out of the connecting pipe can be increased by the above-mentioned water heater water tank, and constant temperature hot water is output, avoiding the user from using cold water and shortening the time for the user to wait for hot water. When the water entering the connecting pipe from the outside of the gallbladder body is high-temperature water and the water inside the gallbladder body is low-temperature water compared to the temperature of the inlet water, the water temperature flowing out of the connecting pipe can be reduced by the above-mentioned water heater water tank, avoiding the user from using particularly hot high-temperature water. Therefore, through the above-mentioned structure, constant temperature hot water can be output, avoiding the user from using cold water or hot water with too high a temperature when using water, and can effectively improve the user's constant temperature experience of water use.

[0086] like Figures 1 to 12 As shown, in some embodiments of the present specification, the connecting pipe 103 may include an inlet 133 and an outlet 134. The inlet 133 of the connecting pipe 103 is connected to the water inlet 111. The outlet 134 of the connecting pipe 103 is connected to the water outlet 112.

[0087] like Figure 2 As shown, in some embodiments of the present specification, the water inlet 111 and the water outlet 112 may be a water inlet and a water outlet formed on the gallbladder body 101. The connecting pipe 103 extends into the gallbladder body 101 through the water inlet and extends out of the gallbladder body 101 through the water outlet.

[0088] Please continue to refer to Figure 2 ,like Figure 2As shown, in some embodiments of the present specification, a water inlet connection joint 135 and a water outlet connection joint 136 may be provided on the connecting pipe 103. The water inlet connection joint 135 is close to the inlet 133 of the connecting pipe 103 and is sealedly connected to the water inlet. The water outlet connection joint 136 is close to the outlet 134 of the connecting pipe 103 and is sealedly connected to the water outlet. Through the water inlet connection joint and the water outlet connection joint, the inlet of the connecting pipe can be sealedly connected to the water inlet of the gallbladder body, and the outlet of the connecting pipe can be sealedly connected to the water outlet of the gallbladder body, so that water can flow from the inlet into the connecting pipe and then out from the outlet, avoiding water from directly flowing into the gallbladder body from the water inlet.

[0089] In some embodiments of the present specification, the water inlet connection joint 135 and the water outlet connection joint 136 can both be flanges. The water inlet connection joint 135 is fixedly connected to the gallbladder body 101 around the water inlet. The water outlet connection joint 136 is fixedly connected to the gallbladder body 101 around the water outlet. The connecting pipe can be fixedly connected to the gallbladder body by fixing the water inlet connection joint to the gallbladder body around the water inlet and fixing the water outlet connection joint to the gallbladder body around the water outlet.

[0090] Please continue to refer to Figures 1 to 12 In some embodiments of the present specification, the connecting pipe 103 can be a single pipe. By forming the water inlet pipe part and the water outlet pipe part of the connecting pipe in one piece, the structure of the water tank used by the water heater can be simplified and the cost can be saved.

[0091] Please continue to refer to Figure 3 In some embodiments of the present specification, a guide structure 137 may be provided on the connecting tube 103. The guide structure 137 may be used to guide the water flowing out of the water outlet 131 to the lower space of the gallbladder body 101. In this embodiment, the water flowing out of the water outlet is guided to the lower space of the gallbladder body by the guide structure, so that the water in the upper space of the gallbladder body can flow into the connecting tube for mixing and then output hot water of constant temperature, thereby improving the user's constant temperature water experience. Moreover, when the water flowing into the connecting tube from the outside of the gallbladder body is low-temperature water, since the heating element is generally located in the lower space of the gallbladder body, the water flowing out of the water outlet is guided to the lower space by the guide structure, so that the heating element can be cooled, the surface temperature of the heating rod can be prevented from being too high, and scale formation can be reduced.

[0092] Please continue to refer to Figure 3 In some embodiments of the present specification, a flow guiding structure 137 may be provided on the connecting pipe 103. The flow guiding structure 137 may be used to guide the water flowing out of the water outlet 131 to the surface of the heating element 102. In this embodiment, when the water flowing into the connecting pipe from the outside of the gallbladder body is low-temperature water, since the water outlet is arranged close to the bottom of the connecting pipe, the water temperature flowing out of the water outlet is relatively low. By guiding the low-temperature water to the surface of the heating element, the surface temperature of the heating rod can be prevented from being too high, and scale formation can be reduced.

[0093] In some embodiments of the present specification, the flow guide structure 137 may be a water retaining cap. The flow guide structure 137 is fixedly connected to the outer wall of the connecting pipe 103. By setting the angle of the water retaining cap, the water flowing out of the water outlet can be directed to the surface of the heating element, increasing the surface area of ​​the heating element washed by the low-temperature water, and further reducing the formation of scale.

[0094] Please continue to refer to Figures 1 to 12 ,like Figures 1 to 12 As shown, in some embodiments of the present specification, the portion of the heating element 102 extending into the gallbladder body 101 can be located in the lower space of the gallbladder body 101. By arranging the heating element in the lower space of the gallbladder body, since the hot water flows upward, the temperature stratification in the gallbladder body can be reduced, the temperature distribution is more uniform, and the heat exchange effect and the water mixing effect can be improved.

[0095] In some embodiments of the present specification, the heating element 102 may be a spiral type or a coil type. By setting the heating element to be a spiral type or a coil type, the contact area between the heating element and the water in the bile body is increased, thereby improving the heating efficiency of the heating element.

[0096] Please continue to refer to Figure 4 ,like Figure 4 As shown, in some embodiments of the present specification, the connecting pipe 103 passes through the inner space formed by the coiling of the heating element 102. In the case where the heating element is a spiral or coil type, the connecting pipe can pass through the inner space formed by the coiling of the heating element, so that the low-temperature water flowing out of the water outlet hole can be directed to the surface area of ​​the heating element to increase, thereby reducing scale generation.

[0097] Please refer to Figure 1 ,like Figure 1 As shown, in some embodiments of the present specification, the inlet 133 of the connecting tube 103 can extend into the water inlet 111 and communicate with the water inlet 111. The outlet 134 of the connecting tube 103 can extend into the water outlet 112 and communicate with the water outlet 112. By extending the inlet of the connecting tube into the water inlet and communicating with the water inlet, water can flow into the inlet of the connecting tube through the water inlet and enter the connecting tube. By extending the outlet of the connecting tube into the water outlet and communicating with the water outlet, water in the connecting tube can flow out to the water outlet through the outlet and then flow out of the bile body. Therefore, water can flow into the water inlet of the bile body, then into the connecting tube, and then flow out from the outlet of the connecting tube to the water outlet.

[0098] Please continue to refer to Figure 4 ,like Figure 4As shown, in some embodiments of the present specification, the water inlet 111 may have one end 1111 sealed with the bile body 101 and another end 1112 away from the bile body 101. The water inlet 111 may also have a peripheral wall 1113 that may be located between the one end 1111 and the other end 1112. By providing the peripheral wall, the connecting pipe extending into the water inlet may be surrounded inside the water inlet.

[0099] like Figure 4 As shown, in some embodiments of the present specification, a water inlet 1114 may be formed on the peripheral wall 1113 of the water inlet 111. By providing the water inlet on the peripheral wall, water can enter the water inlet through the water inlet on the peripheral wall, and then enter the connecting pipe through the inlet connected to the water inlet.

[0100] In some embodiments of the present specification, the inlet 133 of the connecting pipe 103 may be disposed on the pipe body of the connecting pipe 103 located in the water inlet portion 111 and facing the peripheral wall 1113 or the water inlet 1114. Figure 4 As shown, the inlet 133 of the connecting pipe 103 can be arranged on the pipe body of the connecting pipe 103 located in the water inlet portion 111, and arranged toward the water inlet 1114. It can be understood that the inlet 133 of the connecting pipe 103 can also be arranged toward other parts of the peripheral wall 1113. By arranging the water inlet on the peripheral wall and arranging the inlet on the pipe body of the connecting pipe close to the peripheral wall, the inlet can be connected with the water inlet.

[0101] Please continue to refer to Figure 4 ,like Figure 4 As shown, in some embodiments of the present specification, the water inlet 1114 is convexly provided on the peripheral wall 1113 in a direction away from the water inlet portion 111. That is, the water inlet 1114 can be provided with a flange extending away from the water inlet portion or away from the connecting pipe. By providing a convex water inlet, it is convenient for the water inlet to communicate with the external water inlet pipe.

[0102] Please continue to refer to Figure 4 ,like Figure 4 As shown, in some embodiments of the present specification, there may be a gap between the connecting pipe 103 and the peripheral wall 1113. In this embodiment, since there is a gap between the peripheral wall and the connecting pipe, water flowing into the water inlet on the peripheral wall flows through the gap space into the inlet on the pipe body of the connecting pipe toward the water inlet or toward the peripheral wall, so as to facilitate the connection between the two.

[0103] like Figure 4 As shown, in some embodiments of this specification, the other end 1112 of the water inlet 111 is sealed and connected to the end of the connecting pipe 103 away from the gallbladder body 101. In this embodiment, since the other end of the water inlet is sealed and connected to the connecting pipe, water can be prevented from flowing out from the end or gap of the connecting pipe.

[0104] Please refer to Figure 4 and Figure 5 In some embodiments of the present specification, a boss 138 may be provided on the outer peripheral surface of the end of the connecting pipe 103 away from the gallbladder body 101. The boss 138 abuts against the other end 1112 of the water inlet 111. In this embodiment, by providing a boss abutting against the other end of the gallbladder body water inlet, it is possible to prevent water flowing in from the water inlet from entering the gap and then flowing in from the end of the connecting part.

[0105] Please continue to refer to Figure 5 ,like Figure 5 As shown, in some embodiments of the present specification, the water tank for the water heater may further include a plug 139. The other end 1112 may have an opening. The opening is connected to the interior of the tank body 101. The plug 139 may be detachably connected to the other end 1112. It may be used to block the opening. The plug 139 enables the boss 138 to be clamped between the other end 1112 of the water inlet 111 and the inner wall of the plug 139. By providing a detachably connected plug, the water flowing into the gap can be sealed in the gap or guided out of the gap space as needed.

[0106] In some embodiments of the present specification, the material of the tube body of the connecting pipe 103 located in the water inlet 111 may be plastic or rubber. The material of the connecting pipe 103 located inside the tank body 101 may be stainless steel. In this embodiment, by setting the material of the connecting pipe body located in the water inlet to plastic or rubber, it is easy to extend the connecting pipe into the water inlet, and it can also reduce heat exchange, thereby reducing heat loss. By setting the connecting pipe body located in the tank body to stainless steel, the heat exchange efficiency can be improved, and the service life of the connecting pipe can be extended, thereby extending the service life of the water tank of the water heater.

[0107] In some embodiments of the present specification, the water outlet 112 may be sealed to the gallbladder body 101. By sealing the water outlet to the gallbladder body, water may be prevented from flowing out from between the gallbladder body and the water outlet.

[0108] Please refer to Figure 6 ,like Figure 6 As shown, in some embodiments of the present specification, the water tank of the water heater may further include a first temperature sensor 104 and a second temperature sensor 105. The first temperature sensor 104 may be located in the upper space of the gallbladder body 101, and is used to detect the temperature of the upper space of the gallbladder body. The second temperature sensor 105 may be located in the lower space of the gallbladder body 101, and is used to detect the temperature of the lower space of the gallbladder body. In this embodiment, by providing the first temperature sensor and the second temperature sensor, it is convenient to obtain the water temperature distribution in the gallbladder body, so as to control the working state of the heating element according to the water temperature distribution.

[0109] Please continue to refer to Figure 5 ,like Figure 5As shown, in some embodiments of the present specification, the water inlet portion 111 may be a water inlet pipe. A water inlet 1114 may be protrudingly provided on the peripheral wall 1113 of the water inlet pipe.

[0110] Please refer to Figures 1 to 6 In some embodiments of the present specification, the water inlet 111 may be located at the bottom of the gallbladder body 101 , and the water outlet 112 may be located at the top of the gallbladder body 101 .

[0111] Please continue to refer to Figures 1 to 6 In some embodiments of the present specification, the water outlet hole 131 may be located on a portion of the connecting pipe 103 close to the water inlet portion 111. The water inlet hole 132 may be located on a portion of the connecting pipe 103 close to the water outlet portion 112.

[0112] In some embodiments of the present specification, the water inlet 111 and the water outlet 112 are arranged opposite to each other or substantially opposite to each other. Figures 1 to 6 As shown, the water inlet 111 and the water outlet 112 can be arranged opposite to each other. It can be understood that the water inlet 111 and the water outlet 112 can also be arranged substantially opposite to each other.

[0113] Please refer to Figure 7 In some embodiments of the present specification, the water inlet 111 and the water outlet 112 may both be located at the bottom of the gallbladder body 101 .

[0114] Please continue to refer to Figure 7 In some embodiments of the present specification, the connecting pipe 103 may have a portion of the pipe body that may be located between the inlet 133 and the outlet 134 of the connecting pipe 103 and close to the top of the bile body 101. The water inlet hole 132 may be located on the portion of the pipe body close to the top of the bile body 101. The water outlet hole 131 may be located on the portion of the pipe body of the connecting pipe 103 close to the water inlet portion 111.

[0115] Please refer to Figure 8 In some embodiments of the present specification, the water inlet 111 and the water outlet 112 may both be located at the top of the gallbladder body 101 .

[0116] Please continue to refer to Figure 8 In some embodiments of the present specification, the connecting tube 103 may have a portion of the tube body located between the inlet 133 and the outlet 134 of the connecting tube 103 and close to the bottom of the bile body 101. The water outlet 131 may be located in the portion of the tube body close to the bottom of the bile body 101. The water inlet 132 may be located on the portion of the tube body of the connecting tube 103 close to the water outlet 112.

[0117] Please refer to Fig. 9 In some embodiments of the present specification, the water inlet 111 may be located at the top of the gallbladder body 101 , and the water outlet 112 may be located at the bottom of the gallbladder body 101 .

[0118] Please continue to refer to Fig. 9 In some embodiments of the present specification, the connecting tube 103 may have a portion of the tube body located between the inlet 133 of the connecting tube 103 and the outlet 134 of the connecting tube 103 and close to the bottom of the bile body 101. The connecting tube 103 may have a portion of the tube body located between the inlet 133 of the connecting tube 103 and the outlet 134 of the connecting tube 103 and close to the top of the bile body 101. The water outlet 131 may be located in the portion of the tube body close to the bottom of the bile body 101. The water inlet 132 may be located in the portion of the tube body close to the top of the bile body 101.

[0119] Please refer to Fig.10 and Fig.11 In some embodiments of the present specification, the water inlet 111 may be located at the bottom of the gallbladder body 101. The water outlet 112 may be located at the side of the gallbladder body 101. Fig.10 and Fig.11 As shown, the water outlet 112 can be higher than the water inlet 111 in the height direction. In this embodiment, by setting the water outlet higher than the water inlet, the water in the gallbladder body flows into the connecting pipe through the water inlet near the top of the gallbladder body and mixes with the water in the connecting pipe before flowing out immediately, which can improve the water mixing effect. Moreover, when the water flowing into the connecting pipe from the outside of the gallbladder body is low-temperature water, since the hot water flows upward, by setting the water outlet higher than the water inlet, the water temperature flowing out of the connecting pipe can be higher, shortening the user's waiting time for hot water.

[0120] Please continue to refer to Fig.10 and Fig.11 In some embodiments of the present specification, the portion of the tube body between the inlet 133 of the connecting tube 103 and the outlet 134 of the connecting tube 103 may have a bent portion close to the top of the bile body 101. Fig.10 As shown, the water inlet 132 may be located at the bent portion. Fig.11 As shown, the water inlet 132 may be located on a portion of the connecting pipe 103 close to the water outlet 112. Fig.10 and Fig.11 As shown, the water outlet 131 can be located on the part of the connecting tube 103 close to the water inlet 111. In this embodiment, when the water flowing into the connecting tube from the outside of the gallbladder body is low-temperature water, since the water outlet is close to the water inlet, the water temperature flowing out of the water outlet is relatively low, which can reduce the scale formation on the heating element.

[0121] Please refer to Fig.12 In some embodiments of the present specification, the water inlet 111 and the water outlet 112 may be located on the side of the gallbladder body 101 .

[0122] Please continue to refer to Fig.12In some embodiments of the present specification, the water outlet 131 may be located on a portion of the tube body of the connecting tube 103 close to the water inlet 111. The water inlet 132 may be located on a portion of the tube body of the connecting tube 103 close to the water outlet 112. With the above arrangement, when the water flowing into the connecting tube from the outside of the gallbladder body is low-temperature water, since the water outlet is arranged close to the water inlet, the temperature of the water flowing out of the water outlet is relatively low, which can reduce the temperature of the heating element and reduce the scale formation on the heating element. In addition, by arranging the water inlet close to the water outlet, when the water flowing into the connecting tube from the outside of the gallbladder body is low-temperature water, since the hot water flows upward, the temperature of the water flowing out of the connecting tube is relatively high, which can shorten the user's waiting time for hot water.

[0123] Please continue to refer to Fig.12 In some embodiments of the present specification, the water outlet 131 may be located on a portion of the tube body near the bottom of the bile body 101. The water inlet 132 may be located on a portion of the tube body near the top of the bile body 101. The portion of the tube body where the water outlet 131 is located may be located upstream of the portion of the tube body where the water inlet 132 is located. In this embodiment, the tube body near the bottom of the bile body refers to the tube body that is closer to the bottom of the bile body relative to other parts of the connecting tube, and the tube body near the top of the bile body refers to the tube body that is closer to the top of the bile body relative to other parts of the connecting tube. In this embodiment, when the water flowing into the connecting tube from the outside of the bile body is low-temperature water, since the water outlet is located upstream of the water inlet, the temperature of the water flowing out of the water outlet is relatively low, which can reduce the temperature of the heating element and reduce the scale formation on the heating element.

[0124] like Fig.12 As shown, in some embodiments of the present specification, the water outlet 112 is higher in height than the water inlet 111. In this embodiment, by setting the water outlet to be higher than the water inlet, when the water flowing into the connecting pipe from the outside of the gallbladder body is low-temperature water, the hot water flows upward, so that the water temperature flowing out of the connecting pipe is higher, which can shorten the user's waiting time for hot water.

[0125] This specification also provides a gas water heater. Fig.13 , shows a schematic diagram of the structure of the gas water heater in the embodiment of this specification. Fig.13 As shown, the gas water heater device may include: a water heater water tank 10 and a heat exchanger 20. The water heater water tank 10 may be the water heater water tank described in any of the above embodiments. Fig.13 As shown, the water flowing out of the heat exchanger 20 may flow into the water inlet 111 of the water tank 10 for the water heater and may flow out from the water outlet 112 of the water tank 10 for the water heater.

[0126] In the above embodiment, a water tank for a water heater including a tank body, a heating element and a connecting pipe is provided in the gas water heater. The water in the tank body can be heated by the heating element. The water inlet and the water outlet of the tank body are connected by the connecting pipe. A part of the water entering the connecting pipe from the outside of the tank body can flow out into the tank body through the water outlet hole provided on the part of the tube body near the bottom of the tank body, so that the water in the tank body enters the connecting pipe through the water inlet hole, and is mixed with another part of the water entering the connecting pipe from the outside of the tank body and then discharged. When the water entering the connecting pipe from the outside of the tank body is low-temperature water and the water inside the tank body is high-temperature water, the above embodiment can increase the temperature of the water flowing out of the gas water heater, output constant-temperature hot water, avoid users using cold water, and shorten the time users wait for hot water. When the water entering the connecting pipe from the outside of the tank body is high-temperature water and the water inside the tank body is low-temperature water compared to the temperature of the inlet water, the above embodiment can reduce the temperature of the water flowing out of the gas water heater, avoid users using particularly hot high-temperature water. Therefore, the gas water heater in the above embodiment can output hot water at a constant temperature, avoiding the user from using cold water or hot water with too high a temperature when using water, and can effectively improve the user's constant temperature water experience.

[0127] like Fig.13 As shown, in some embodiments of the present specification, the gas water heater may further include a housing 30. The water tank 10 for the water heater may be at least partially disposed in the housing 30.

[0128] like Fig.13 As shown, in some embodiments of the present specification, the water outlet 112 can be located above the water inlet 111 in the height direction. The water flowing out of the heat exchanger 20 enters from below the water tank 10 for the water heater and flows out from above the water tank 10 for the water heater. In this embodiment, by setting the water outlet higher than the water inlet, the water in the gallbladder body flows into the connecting pipe through the water inlet near the top of the gallbladder body and mixes with the water in the connecting pipe before flowing out immediately, which can improve the water mixing effect. Moreover, when the water flowing into the connecting pipe from the outside of the gallbladder body is low-temperature water, since the hot water flows upward, by setting the water outlet higher than the water inlet, the water temperature flowing out of the connecting pipe can be made higher, thereby shortening the waiting time for users to get hot water.

[0129] Please continue to refer to Fig.13 In some embodiments of the present specification, the water tank 10 for water heater may further include at least one hanging ear 106. The water tank 10 for water heater is connected to the back plate or side plate of the housing 30 of the gas water heater through the hanging ear 106. In this embodiment, the water tank for water heater may be fixedly connected to the housing through the hanging ear.

[0130] like Fig.13As shown, in some embodiments of the present specification, the water inlet 111 at least partially extends out of the housing 30. The water inlet 1114 of the water inlet 111 can be arranged in the housing 30. An opening can be arranged on the portion of the water inlet 111 extending out of the housing 30. The opening is connected to the interior of the gallbladder body 101. A plug 139 that can be used to block the opening can be arranged on the opening. The plug 139 can be detachably connected to the water inlet 111. By providing a detachably connected plug, water flowing into the gap can be sealed in the gap or guided out of the gap space as needed.

[0131] like Fig.13 As shown, in some embodiments of the present specification, a limiting plate 107 may be provided on the peripheral wall 1113 of the water inlet 111. The limiting plate 107 may be provided inside the housing 30. The limiting plate 107 may be used to abut against the bottom plate of the housing 30 to limit the water tank 10 of the water heater. In this embodiment, the water tank may be limited by the limiting plate.

[0132] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. For details, please refer to the description of the above-mentioned related processing related embodiments, and no further description is given here.

[0133] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this specification should not be determined with reference to the above description, but should be determined with reference to the preceding claims and the full scope of equivalents to which these claims belong.

[0134] The above description is only the preferred embodiment of this specification and is not intended to limit this specification. For those skilled in the art, the embodiments of this specification may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this specification shall be included in the protection scope of this specification.

Claims

1. A water tank for a water heater, characterized in that: include: A gallbladder body, wherein the gallbladder body has a water inlet and a water outlet; A heating element, the heating element is arranged on the gallbladder body and is used to heat the water in the gallbladder body; A connecting pipe, the connecting pipe connects the water inlet and the water outlet, the connecting pipe is at least partially located in the bile body; the connecting pipe is provided with a water outlet hole and a water inlet hole; The water outlet hole is arranged on a portion of the tube body of the connecting tube close to the bottom of the bile body, and the water inlet hole is arranged on a portion of the tube body close to the top of the bile body.

2. The water tank for water heater according to claim 1, characterized in that: The connecting pipe comprises an inlet and an outlet, the inlet of the connecting pipe is connected to the water inlet, and the outlet of the connecting pipe is connected to the water outlet.

3. The water tank for water heater according to claim 1, characterized in that: The water flowing in from the water inlet enters the connecting pipe, part of the water entering the connecting pipe enters the bile body from the water outlet hole, and part of the water flows to the water outlet, and the heated water in the bile body can flow into the connecting pipe from the water inlet hole.

4. The water tank for water heater according to claim 1, characterized in that: The water inlet and the water outlet are a water inlet and a water outlet formed on the bile body, and the connecting pipe extends into the bile body through the water inlet and extends out of the bile body through the water outlet.

5. The water tank for water heater according to claim 4, characterized in that: The connecting pipe is provided with a water inlet connection joint and a water outlet connection joint. The water inlet connection joint is close to the inlet of the connecting pipe and is sealedly connected to the water inlet. The water outlet connection joint is close to the outlet of the connecting pipe and is sealedly connected to the water outlet.

6. The water tank for water heater according to claim 5, characterized in that: The water inlet connection joint and the water outlet connection joint are both flanges. The water inlet connection joint is fixedly connected to the gallbladder body around the water inlet; the water outlet connection joint is fixedly connected to the gallbladder body around the water outlet.

7. The water tank for water heater according to claim 1, characterized in that: The connecting pipe is a pipe.

8. The water tank for water heater according to claim 1, characterized in that: The connecting pipe is provided with a flow guiding structure, and the flow guiding structure is used for guiding the water flowing out of the water outlet to the lower space of the gallbladder body.

9. The water tank for water heater according to claim 1, characterized in that: The connecting pipe is provided with a flow guiding structure, and the flow guiding structure is used to guide the water flowing out of the water outlet to the surface of the heating element.

10. The water tank for water heater according to claim 8 or 9, characterized in that: The flow guiding structure is a water retaining cap, and the flow guiding structure is fixedly connected to the outer wall of the connecting pipe.

11. The water tank for water heater according to claim 1, characterized in that: The portion of the heating element extending into the gallbladder body is located in the lower space of the gallbladder body.

12. The water tank for water heater according to claim 1, characterized in that: The heating element is of a spiral type or a coil type.

13. The water tank for water heater according to claim 1, characterized in that: The communication pipe passes through an inner space formed by the coiling of the heating element.

14. The water tank for water heater according to claim 2, characterized in that: The inlet of the connecting pipe extends into the water inlet portion and communicates with the water inlet portion, and / or the outlet of the connecting pipe extends into the water outlet portion and communicates with the water outlet portion.

15. The water tank for water heater according to claim 14, characterized in that: The water inlet portion has one end sealed with the bile body and the other end away from the bile body, and the water inlet portion also has a peripheral wall located between the one end and the other end.

16. The water tank for water heater according to claim 15, characterized in that: A water inlet is formed on the peripheral wall of the water inlet portion.

17. The water tank for water heater according to claim 16, characterized in that: The inlet of the connecting pipe is arranged on the pipe body of the connecting pipe located in the water inlet portion and faces the peripheral wall or the water inlet.

18. The water tank for water heater according to claim 16, characterized in that: The water inlet is protrudingly arranged on the peripheral wall in a direction away from the water inlet portion.

19. The water tank for water heater according to claim 17, characterized in that: A gap is provided between the communicating pipe and the peripheral wall.

20. The water tank for water heater according to claim 19, characterized in that: The other end of the water inlet is sealedly connected to the end of the connecting pipe away from the gallbladder body.

21. The water tank for water heater according to claim 20, characterized in that: A boss is arranged on the outer peripheral surface of the end of the connecting pipe away from the gallbladder body, and the boss abuts against the other end of the water inlet portion.

22. The water tank for water heater according to claim 21, characterized in that: The water tank for the water heater also includes a plug, the other end of which has an opening, the opening being connected to the interior of the tank body, the plug being detachably connected to the other end for sealing the opening, and the plug enabling the boss to be clamped between the other end of the water inlet and the inner wall of the plug.

23. The water tank for water heater according to claim 21, characterized in that: The material of the tube body of the connecting tube located in the water inlet part is plastic or rubber, and the material of the connecting tube located inside the gallbladder body is stainless steel.

24. The water tank for water heater according to claim 21, characterized in that: The water outlet is sealed and connected to the gallbladder body.

25. The water tank for water heater according to claim 1, characterized in that: The water tank for the water heater further comprises a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is located in the upper space inside the tank body, and the second temperature sensor is located in the lower space inside the tank body.

26. The water tank for water heater according to claim 18, characterized in that: The water inlet portion is a water inlet pipe, and the water inlet is protrudingly provided on the peripheral wall of the water inlet pipe.

27. The water tank for water heater according to claim 1, characterized in that: The water inlet is located at the bottom of the gallbladder body, and the water outlet is located at the top of the gallbladder body.

28. The water tank for water heater according to claim 27, characterized in that: The water outlet hole is located on a portion of the pipe body of the connecting pipe close to the water inlet portion, and the water inlet hole is located on a portion of the pipe body of the connecting pipe close to the water outlet portion.

29. The water tank for water heater according to claim 27, characterized in that: The water inlet and the water outlet are arranged opposite to each other or substantially opposite to each other.

30. The water tank for water heater according to claim 1, characterized in that: The water inlet and the water outlet are both located at the bottom of the gallbladder body.

31. The water tank for water heater according to claim 30, characterized in that: The connecting tube has a partial tube body located between the inlet and the outlet of the connecting tube and close to the top of the bile body, the water inlet hole is located on the partial tube body close to the top of the bile body, and the water outlet hole is located on the partial tube body of the connecting tube close to the water inlet.

32. The water tank for water heater according to claim 1, characterized in that: The water inlet and the water outlet are both located at the top of the gallbladder body.

33. The water tank for water heater according to claim 32, characterized in that: The connecting tube has a partial tube body located between the inlet and the outlet of the connecting tube and close to the bottom of the bile body, the water outlet is located in the partial tube body close to the bottom of the bile body, and the water inlet is located on the partial tube body of the connecting tube close to the water outlet.

34. The water tank for water heater according to claim 1, characterized in that: The water inlet is located at the top of the gallbladder body, and the water outlet is located at the bottom of the gallbladder body.

35. The water tank for water heater according to claim 34, characterized in that: The connecting tube has a partial tube body located between the inlet and the outlet of the connecting tube and close to the bottom of the bile body, the connecting tube has a partial tube body located between the inlet and the outlet of the connecting tube and close to the top of the bile body, the water outlet is located in the partial tube body close to the bottom of the bile body, and the water inlet is located in the partial tube body close to the top of the bile body.

36. The water tank for water heater according to claim 1, characterized in that: The water inlet is located at the bottom of the bile body, the water outlet is located at the side of the bile body, and the water outlet is higher than the water inlet in the height direction.

37. The water tank for water heater according to claim 36, characterized in that: The portion of the tube body located between the inlet of the connecting tube and the outlet of the connecting tube has a bending portion close to the top of the bile body, the water inlet hole is located at the bending portion or the water inlet hole is located on the portion of the tube body of the connecting tube close to the water outlet, and the water outlet hole is located on the portion of the tube body of the connecting tube close to the water inlet.

38. The water tank for water heater according to claim 1, characterized in that: The water inlet and the water outlet are both located on the side of the gallbladder body.

39. The water tank for water heater according to claim 38, characterized in that: The water outlet hole is located on a portion of the pipe body of the connecting pipe close to the water inlet portion, and the water inlet hole is located on a portion of the pipe body of the connecting pipe close to the water outlet portion.

40. The water tank for water heater according to claim 38, characterized in that: The water outlet is located on a portion of the tube body close to the bottom of the bile body, the water inlet is located on a portion of the tube body close to the top of the bile body, and the portion of the tube body where the water outlet is located is located upstream of the portion of the tube body where the water inlet is located.

41. The water tank for water heater according to claim 38, characterized in that: The water outlet is higher than the water inlet in the height direction.

42. A gas water heater, characterized in that: It comprises a heat exchanger and a water tank for a water heater as described in any one of claims 1 to 41, wherein water flowing out of the heat exchanger flows into a water inlet of the water tank for the water heater and flows out from a water outlet of the water tank for the water heater.

43. The gas water heater according to claim 42, characterized in that: The gas water heater comprises a shell, and the water tank for the water heater is arranged in the shell.

44. The gas water heater according to claim 42, characterized in that: In the height direction, the water outlet is located above the water inlet, and the water flowing out of the heat exchanger enters from below the water tank of the water heater and flows out from above the water tank of the water heater.

45. The gas water heater according to claim 43, characterized in that: The water tank for the water heater further comprises at least one hanging ear, and the water tank for the water heater is connected to the back plate or the side plate of the shell of the gas water heater through the hanging ear.

46. ​​The gas water heater according to claim 43, characterized in that: The water inlet at least partially extends out of the shell, the water inlet of the water inlet is arranged in the shell, the part of the water inlet extending out of the shell is provided with an opening, the opening is connected with the interior of the gallbladder body, and the opening is provided with a plug for sealing the opening.

47. The gas water heater according to claim 43, characterized in that: A limiting plate is arranged on the peripheral wall of the water inlet portion, and the limiting plate is arranged inside the shell. The limiting plate is used to abut against the bottom plate of the shell to limit the water tank of the water heater.

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