Gas water heater

Abstract

The utility model belongs to the technical field of heat supply, and particularly discloses a gas water heater. The gas water heater comprises a combustor, a water inlet pipe, a heat exchanger, a water outlet pipe, a water tank and a bypass pipe, the water tank is provided with a first water inlet, a second water inlet and a water outlet, a turbulent flow structure is arranged in the water tank and divides an inner cavity of the water tank into an energy storage cavity and a drainage cavity, at least part of the edge of the turbulent flow structure is connected with the bottom wall of the inner cavity, and the energy storage cavity is communicated with the drainage cavity through the turbulent flow structure. The second water inlet and the water outlet are located in the side wall of the drainage cavity, the outlet end of the first water outlet section communicates with the first water inlet, and the water outlet communicates with the inlet end of the second water outlet section; one end of the bypass pipe is communicated with the water inlet pipe, and the other end of the bypass pipe is communicated with the second water inlet. According to the gas water heater, the technical problem that the water outlet temperature is not constant when the gas water heater is started for the second time can be effectively reduced or avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heat supply, especially relates to a gas water heater. BACKGROUND

[0002] The gas water heater is also called gas water heater, which is a kind of gas appliance using gas as fuel, heating through combustion, transferring heat to cold water flowing through the heat exchanger to achieve the purpose of preparing hot water. The gas water heater is favored by the majority of consumers due to its advantages of fast heating speed and low use cost.

[0003] However, the gas water heater also has the problem of unstable water outlet temperature during use. When the user encounters a situation that needs to pause the use of the gas water heater, such as needing to turn off the water to apply shower gel, the water in the heat exchanger will be further heated by the residual heat of the heat exchanger during the pause time, resulting in excessively high water temperature in that part. When the user restarts the gas water heater, there is a certain time difference between the start of the gas water heater, resulting in that part of the water cannot be fully heated, so when the user starts the gas water heater again, the user will encounter the situation of excessively high water outlet temperature and excessively low water outlet temperature, that is, the user will encounter the situation of large temperature difference between the two sections of water outlet temperature, and then return to the preset temperature, resulting in poor user experience.

[0004] In the prior art, although there is a zero-cold-water gas water heater to ensure constant water outlet temperature, the user's home needs to be pre-installed with a return pipe to install the zero-cold-water gas water heater. This results in that when the user's home is not installed with a return pipe, the user still has to install a normal gas water heater, which still has the technical problem of unstable water outlet temperature during secondary start, resulting in a big discount in user experience. INVENTION CONTENTS

[0005] The technical problem to be solved by the utility model is to provide a gas water heater that can effectively reduce or avoid the technical problem of unstable water outlet temperature during secondary start of the water heater.

[0006] The above technical problem is solved by the following technical scheme:

[0007] The gas water heater comprises a burner and an inlet pipe, a heat exchanger and an outlet pipe connected in sequence, the burner can heat the heat exchanger, the inlet pipe is provided with a flow sensor, the outlet pipe comprises a first outlet section and a second outlet section, the inlet end of the first outlet section is communicated with the outlet end of the heat exchanger, and the gas water heater further comprises:

[0008] The water tank has a first water inlet, a second water inlet and a water outlet, a turbulence structure is arranged in the water tank, the turbulence structure separates an inner cavity of the water tank into an energy storage cavity and a water discharge cavity, at least part of edges of the turbulence structure are connected with a bottom wall of the inner cavity, the energy storage cavity and the water discharge cavity are communicated through the turbulence structure, the first water inlet is located at a side wall of the energy storage cavity, the second water inlet and the water outlet are located at a side wall of the water discharge cavity, an outlet end of the first water outlet section is communicated with the first water inlet, and the water outlet is communicated with an inlet end of the second water outlet section.

[0009] A bypass pipe is communicated with the water inlet pipe at one end and communicated with the second water inlet at the other end, and the bypass pipe is provided with a control valve.

[0010] Compared with the background art, the gas water heater has the beneficial effects that:

[0011] In the scene of secondary use after the gas water heater is temporarily closed, the control valve opening degree is adjusted to be large, part of water flow in the water inlet pipe is shunted to the second water inlet of the water tank through the bypass pipe, that is, into the water discharge cavity of the water tank, and the other part of water flow flows into the heat exchanger from the water inlet pipe. The water flow flowing to the heat exchanger through the water inlet pipe is reduced due to the shunting, so that the water flow in the heat exchanger is heated to a higher temperature to ensure that the water outlet temperature is unchanged. On the one hand, the temperature of the heat exchanger is higher, and the temperature difference with the surrounding environment is larger, so that heat dissipation is accelerated. In addition, the water tank has a buffering effect on high-temperature water, so that the water temperature rise during water stoppage can be effectively reduced. On the other hand, during the short-time secondary start stage, the water temperature in the heat exchanger is higher, so that more heat energy can be stored compared with the prior art without the bypass pipe. In addition, the water tank is arranged downstream of the heat exchanger, and the water tank is divided into the energy storage cavity and the water discharge cavity, and the energy storage cavity is located between the heat exchanger outlet and the water discharge cavity. Therefore, the energy storage cavity functions as an energy storage expansion unit of the heat exchanger, so that the heat exchanger and the energy storage cavity can store more high-temperature water. During the process from the start of the burner to the normal heating process, the control valve opening degree of the bypass pipe is adjusted to be small or closed through time delay, so that the water flow in the water inlet pipe flowing to the heat exchanger is increased, and the high-temperature water heat energy stored in the heat exchanger and the energy storage cavity is released, thereby effectively reducing the water temperature drop during water stoppage which has not been heated in time when the water heater is started, and the gas water heater is stably and normally heated.

[0012] In addition, in the water tank of the above-mentioned gas water heater, at least part of edges of the turbulence structure are connected with the bottom wall of the inner cavity. Compared with the case that all edges of the turbulence structure are connected with the side wall of the inner cavity, the volume of the energy storage cavity can be relatively large, so that more high-temperature water can be stored in the energy storage cavity, and the water temperature drop during water stoppage which has not been heated in time when the water heater is started can be effectively reduced.

[0013] In one of the embodiments, the spoiler structure is provided with a through hole communicating the energy storage cavity and the drainage cavity.

[0014] In one of the embodiments, the number of the through holes is multiple.

[0015] In one of the embodiments, along the radial direction of the water tank, the second water inlet is located at one end of the radial direction of the water tank, and the water outlet is located at the other end of the radial direction of the water tank.

[0016] In one of the embodiments, the through holes are distributed at one end of the spoiler structure close to the second water inlet.

[0017] In one of the embodiments, the spoiler structure comprises: a first partition plate, which is arranged opposite to the bottom wall of the drainage cavity with a certain interval, and both ends of the first partition plate are connected to the inner side wall of the inner cavity;

[0018] a second partition plate, which is arranged at one side of the first partition plate with an angle, the free end of the second partition plate is connected to the bottom wall of the drainage cavity, and both ends of the second partition plate are connected to the inner side wall of the inner cavity;

[0019] a third partition plate, which is arranged at the other side of the first partition plate with an angle, the free end of the third partition plate is connected to the bottom wall of the drainage cavity, and both ends of the third partition plate are connected to the inner side wall of the inner cavity.

[0020] In one of the embodiments, at least one of the first partition plate, the second partition plate and the third partition plate is provided with a through hole, and the energy storage cavity and the drainage cavity are communicated through the through hole.

[0021] In one of the embodiments, the gas water heater further comprises a tank body mounting member, which is arranged on the water tank, and the tank body mounting member is provided with a mounting hole.

[0022] In one of the embodiments, the water tank further comprises:

[0023] a tank body, which is provided with the inner cavity with two open ends;

[0024] a first cover, which covers the first end opening of the inner cavity;

[0025] a second cover, which covers the second end opening of the inner cavity, part of the edge of the spoiler structure abuts against the inner surface of the tank body, and the remaining edge of the spoiler structure abuts against the inner surface of the second cover.

[0026] In one of the embodiments, the first water inlet is arranged on the first cover body, the second water inlet is arranged on the sidewall of the tank body, and the water outlet is arranged on the second cover body. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 Structure schematic view of the gas water heater provided by the embodiment of the present application

[0028] Figure 2 Structure schematic view of the water mixing tank for the water heater from a first perspective

[0029] Figure 3 Structure schematic view of the water mixing tank for the water heater from a second perspective

[0030] Figure 4 Exploded structure schematic view of the water mixing tank for the water heater

[0031] Figure 5 Structure schematic view of the partition piece of the water mixing tank for the water heater from a first perspective

[0032] Figure 6 Structure schematic view of the partition piece of the water mixing tank for the water heater from a second perspective

[0033] Figure 7 Structure schematic view of the water mixing tank for the water heater from a first perspective

[0034] Figure 8 Structure schematic view of the water mixing tank for the water heater from a second perspective

[0035] Figure 9 Structure schematic view of the water mixing tank for the water heater from a third perspective

[0036] REFERENCE NUMERALS

[0037] 10, shell; 20, heat exchanger; 30, water inlet pipe; 301, water inlet temperature sensor; 302, flow sensor; 40, bypass pipe; 401, control valve; 50, water outlet pipe; 501, first water outlet section; 5011, heat exchanger water outlet temperature sensor; 502, second water outlet section; 5021, water mixing tank water outlet temperature sensor;

[0038] 11, first water inlet; 12, second water inlet; 13, water outlet; 14, inner cavity; 141, drainage cavity; 142, energy storage cavity; 15, tank body; 16, first cover body; 17, second cover body; 171, first bottom wall;

[0039] 2. Spoiler structure; 21. Through hole; 22. First partition; 23. Second partition; 24. Third partition;

[0040] 3. Tank mounting; 31. Mounting hole; 32. Positioning hole. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0042] In the description of the present application, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0043] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified and limited, the term "a plurality of" means two or more.

[0044] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] Referring to Figure 1 The present embodiment provides a gas water heater. It can avoid or reduce the temperature rise and temperature drop problem of the gas water heater during secondary start, improve the user experience, and has no requirement for the reservation of the backwater pipe.

[0046] Specifically, the gas water heater comprises a burner and a water inlet pipe 30, a heat exchanger 20 and a water outlet pipe 50 connected in sequence, the burner can supply heat for the heat exchanger 20, the water inlet pipe 30 is provided with a flow sensor 302, and the water outlet pipe 50 comprises a first water outlet section 501 and a second water outlet section 502, an inlet end of the first water outlet section 501 is communicated with an outlet end of the heat exchanger 20.

[0047] The gas water heater further comprises a water tank and a bypass pipe 40.

[0048] Referring to Figures 2-4 , the water tank is provided with a first water inlet 11, a second water inlet 12 and a water outlet 13, a turbulence structure 2 is arranged in the water tank, the turbulence structure 2 divides an inner cavity 14 of the water tank into an energy storage cavity 142 and a drainage cavity 141, at least part of an edge of the turbulence structure 2 is connected with a bottom wall of the inner cavity 14, the energy storage cavity 142 and the drainage cavity 141 are communicated through the turbulence structure 2, the first water inlet 11 is located on a side wall of the energy storage cavity 142, the second water inlet 12 and the water outlet 13 are located on a side wall of the drainage cavity 141, an outlet end of the first water outlet section 501 is communicated with the first water inlet 11, and the water outlet 13 is communicated with an inlet end of the second water outlet section 502.

[0049] One end of the bypass pipe 40 is communicated with the water inlet pipe 30, and the other end is communicated with the second water inlet 12, and the bypass pipe 40 is provided with a control valve 401.

[0050] The gas water heater provided in the embodiment has the water tank, the bypass pipe 40 provided with the control valve 401, and the water tank arranged at one end of the bypass pipe 40. In the scenario of secondary use after the gas water heater is temporarily closed, the opening of the control valve 401 can be adjusted to a large degree, so that part of the water flow in the water inlet pipe 30 is diverted to the second water inlet 12 of the water tank, that is, into the drain cavity 141 of the water tank, and the other part of the water flow flows into the heat exchanger 20 from the water inlet pipe 30. The water flow flowing into the heat exchanger 20 from the water inlet pipe 30 is reduced due to the diversion, so that the water flow in the heat exchanger 20 is heated to a higher temperature, on the one hand, the heat exchanger 20 has a higher temperature and a larger temperature difference with the surrounding environment, so that heat dissipation is accelerated, and the buffering effect of the water tank on the high-temperature water can effectively reduce the temperature rise during water stop. On the other hand, during the short-time secondary start stage, the water in the heat exchanger 20 has a higher temperature, so that more heat energy can be stored compared with the prior art without the bypass pipe. Since the water tank is arranged downstream of the heat exchanger 20, and the water tank is divided into the energy storage cavity 142 and the drain cavity 141, the energy storage cavity 142 is located between the outlet of the heat exchanger 20 and the drain cavity 141, so that the energy storage cavity 142 is equivalent to an energy storage expansion unit of the heat exchanger 20, and more high-temperature water can be stored in the heat exchanger 20 and the energy storage cavity 142. During the process from the start of the burner to the normal heating process, the opening of the control valve 401 of the bypass pipe 40 is adjusted to a small degree or closed in a time-delay manner, so that the water flow in the water inlet pipe 30 flowing into the heat exchanger 20 is increased, and the high-temperature water heat energy stored in the heat exchanger 20 and the energy storage cavity 142 is released, thereby effectively reducing the water stop temperature drop caused by the water that has not been heated in time when the water heater is started, and the gas water heater is stably and normally heated.

[0051] Meanwhile, in the water tank of the above-mentioned gas water heater, at least part of the edges of the turbulence structure 2 is connected to the bottom wall of the inner cavity 14. Compared with the case that all edges of the turbulence structure 2 are connected to the side wall of the inner cavity 14, the setting can further reduce the volume of the drain cavity 141, so that the volume of the energy storage cavity 142 can be relatively large, and more high-temperature water can be stored in the energy storage cavity 142, thereby effectively reducing the water stop temperature drop caused by the water that has not been heated in time when the water heater is started, and the thermostatic effect of the water heater is better.

[0052] Further, referring to Figure 1 In one of the embodiments, the part of the water inlet pipe 30 upstream of the interface of the bypass pipe 40 is provided with a water inlet temperature sensor 301 and a flow sensor 302. The water inlet temperature sensor 301 can obtain the water temperature entering the water inlet pipe 30, and the flow sensor 302 can obtain the water flow entering the water inlet pipe 30, so that whether the water is stopped can be determined to control the water heater to be closed when the water is stopped.

[0053] Specifically, the water inlet end of the energy storage cavity 142 in the water tank is communicated with the water outlet end of the heat exchanger 20 through a first water outlet section 501, and the first water outlet section 501 is provided with a heat exchanger outlet water temperature sensor 5011, which can obtain the outlet water temperature of the heat exchanger 20, that is, the inlet water temperature of the energy storage cavity 142.

[0054] The water outlet 13 of the water tank is communicated with the water outlet end of the water heater through a second water outlet section 502, and the second water outlet section 502 is provided with a mixed water tank outlet water temperature sensor 5021, which can obtain the water temperature discharged from the water outlet 13, that is, the outlet water temperature of the water heater.

[0055] Further, in one of the embodiments, the gas water heater further comprises a main controller (not shown in the figure), the control valve 401, the inlet water temperature sensor 301, the heat exchanger outlet water temperature sensor 5011 and the mixed water tank outlet water temperature sensor 5021 are all communicated with the main controller in a wired or wireless manner, the main controller can include a chip with the ability of including but not limited to storage, calculation, signal output and reception, so that the main controller can adjust the water flow of the bypass pipe 40 by controlling the control valve 401 to adjust the bypass ratio of the water heater when the actual outlet water temperature of the water heater changes, and then the actual outlet water temperature of the gas water heater, so that the stability of the actual outlet water temperature of the water heater is better.

[0056] Specifically, the control valve 401 is a water proportional valve.

[0057] Further, pipe joints are arranged at the first water inlet 11, the second water inlet 12 and the water outlet 13, so as to facilitate the connection with the pipelines.

[0058] Specifically, in one of the embodiments, referring to Figure 2 and Figure 3 , the gas water heater further comprises a tank body mounting member 3, which is arranged on the water tank, and the tank body mounting member 3 is provided with mounting holes 31. The connecting members pass through the mounting holes 31 and are locked on the shell of the gas water heater, so as to realize the installation of the water tank.

[0059] Further, the tank body mounting member 3 is further provided with positioning holes 32. The inner wall of the shell of the gas water heater is provided with positioning columns matched with the positioning holes 32. When the water tank is installed, the positioning holes 32 are matched with the positioning columns to limit the installation position of the water tank, and then the connecting members are matched with the mounting holes 31 to install the water tank in place, so as to ensure the smooth connection between the water tank and the pipelines.

[0060] Optionally, the number of mounting holes 31 is multiple. The number of positioning holes 32 is multiple.

[0061] Referring to Figure 3 and Figure 4 In one embodiment, the water tank further comprises a tank body 15, a first cover 16 and a second cover 17.

[0062] The tank body 15 is provided with an inner cavity 14 with two open ends.

[0063] The first cover 16 covers the first end opening of the inner cavity 14.

[0064] The second cover 17 covers the second end opening of the inner cavity 14, and part of the edges of the spoiler structure 2 abut against the inner surface of the tank body 15, and the remaining edges of the spoiler structure 2 abut against the inner surface of the second cover 17.

[0065] With the above structure of the water tank, the installation of the spoiler structure 2 is facilitated.

[0066] Specifically, referring to Figure 4 , the inner wall of the second cover 17 comprises a first bottom wall 171, part of the edges of the spoiler structure 2 abut against the first bottom wall 171, and the remaining edges of the spoiler structure 2 abut against the inner side surface of the tank body 15. Specifically, the second cover 17 covers the lower end opening of the inner cavity 14.

[0067] In the assembly of the water mixing tank for water heaters, the spoiler structure 2 is first pre-installed in place on the first bottom wall 171, and then the tank body 15 is installed to the second cover 17, at this time part of the edges of the spoiler structure 2 abut against the tank body 15, and the remaining edges of the spoiler structure 2 abut against the inner side surface of the tank body 15, and the first surface of the spoiler structure 2, part of the surface of the first bottom wall 171 and part of the inner side surface of the tank body 15 form a drainage cavity 141, and finally the first cover 16 is covered on the upper end of the inner cavity 14.

[0068] Alternatively, the first cover 16 is threadedly and sealingly connected to the upper end of the tank body 15, the second cover 17 is threadedly and sealingly connected to the lower end of the tank body 15, part of the edges of the spoiler structure 2 sealingly abut against the tank body 15, and the remaining edges of the spoiler structure 2 sealingly abut against the inner side surface of the tank body 15.

[0069] Further optionally, in order to achieve the sealing abutment between the edges of the spoiler structure 2 and the inner surface of the water tank, a sealing rubber sleeve can be provided at the edges of the spoiler structure 2.

[0070] The second cover 17 comprises a lower bottom plate and a side wall arranged around the circumference of the lower bottom plate; the inner surface of the lower bottom plate is the first bottom wall 171. The second cover 17 is threadedly and sealingly connected to the lower end of the tank body 15 through the side wall.

[0071] The first cover body 16 comprises an upper bottom plate and a side wall arranged around the periphery of the lower bottom plate; the inner surface of the upper bottom plate is the second bottom wall of the water tank, and the first cover body 16 is threadedly and sealingly connected to the upper end of the tank body 15 through the side wall.

[0072] Further, in one of the embodiments, referring to Figure 4 , the first water inlet 11 is arranged on the first cover body 16, the second water inlet 12 is arranged on the side wall of the tank body 15, and the water outlet 13 is arranged on the second cover body 17.

[0073] When the water tank is in use, the orientation of the water tank is Figure 2 and Figure 3 , the first cover body 16 is located above the direction of gravity, and the second cover body 17 is located below the direction of gravity. The first water inlet 11 is arranged on the first cover body 16, so that the hot water flowing out of the heat exchanger flows into the energy storage cavity 142 from top to bottom; the second water inlet 12 is arranged on the tank body 15, so that the cold water bypassing into the drain cavity 141 enters from the side wall of the water tank, fully ensuring that the cold water and the hot water are mixed uniformly and form warm water. The water outlet 13 is arranged on the second cover body 17, so that the warm water in the drain cavity 141 can flow out quickly.

[0074] Specifically, in one of the embodiments, referring to Figure 5 and Figure 6 , the turbulence structure 2 is provided with a through hole 21 communicating the energy storage cavity 142 and the drain cavity 141.

[0075] When the water heater is working normally, the hot water at the outlet end of the heat exchanger 20 flows into the energy storage cavity 142, that is, the water temperature in the energy storage cavity 142 is the outlet water temperature of the heat exchanger, the outlet water temperature of the heat exchanger 20 is higher than the set outlet water temperature set by the user, and the hot water in the energy storage cavity 142 flows into the drain cavity 141 through the through hole 21. The second water inlet 12 is bypassed and connected to the water inlet pipe 30 of the water heater through the bypass pipe 40, so that the bypass pipe 40 introduces cold water into the drain cavity 141, the hot water and the cold water are mixed in the drain cavity 141 to form warm water with the same temperature as the set outlet water temperature, and the warm water flows out through the water outlet 13, the second water outlet section 502 and the outlet end of the water heater for the user to use.

[0076] When the water heater is temporarily stopped, the hot water with a temperature higher than the set water outlet temperature flows out from the outlet end of the heat exchanger 20 and is stored in the energy storage cavity 142. Due to the high residual heat of the heat exchanger, the temperature of the hot water flowing out from the outlet end of the heat exchanger 20 during the temporary stop is higher than that during the normal operation of the water heater. When the water heater is started again, the cold water flowing out from the outlet end of the heat exchanger 20 of the water heater enters the energy storage cavity 142, mixes with the hot water in the energy storage cavity 142, and causes the overall water temperature in the energy storage cavity 142 to decrease. At the same time when the water heater is started again, the control reduces the flow of cold water delivered by the bypass pipe 40 into the drain cavity 141, so as to reduce the decrease in the water temperature in the energy storage cavity 142 after the hot water and the cold water in the energy storage cavity 142 mix, to make the water temperature discharged from the drain cavity 141 more stable, and to make the water temperature at the outlet end of the water heater constant, while avoiding the water heater from flowing out hot water with a temperature higher than the set water outlet temperature when started again, to ensure the user experience. Even if the user does not pre-install a backwater pipe, the water heater with the mixing tank can also achieve constant temperature water outlet when started again.

[0077] The through hole 21 is provided to flow the hot water in the energy storage cavity 142 into the drain cavity 141, and to form a narrowed structure at the through hole 21 to accelerate the flow of the hot water in the energy storage cavity 142 into the drain cavity 141, to fully ensure the uniformity of the mixing of the hot water and the cold water in the drain cavity 141.

[0078] Optionally, in one of the embodiments, the number of the through holes 21 is multiple, so that the hot water in the energy storage cavity 142 can quickly and uniformly enter the drain cavity 141.

[0079] Further, in one of the embodiments, referring to Figures 7-9 , the second water inlet 12 is located at one end of the radial direction of the tank, and the water outlet 13 is located at the other end of the radial direction of the tank. In this way, the distance between the second water inlet 12 and the water outlet 13 is as far as possible, so as to prolong the mixing path and mixing time of the cold water and the water heater in the drain cavity 141, to ensure that the cold water and the hot water are fully mixed and uniformly before flowing out through the water outlet 13.

[0080] In one of the embodiments, the through holes 21 are distributed at one end of the spoiler structure 2 close to the second water inlet 12. In this way, when the bypassed cold water flows into the drainage cavity 141, the cold water is quickly mixed with the hot water flowing from the through holes 21. At the end of the spoiler structure 2 close to the water outlet 13, no through holes 21 are arranged to avoid the hot water flowing into the drainage cavity 141 from the through holes 21 from flowing to the water outlet 13 before being mixed with the cold water, which leads to the water outlet temperature of the water heater being higher than the set water outlet temperature and affecting the user experience.

[0081] Specifically, in one of the embodiments, referring to Figure 5 and Figure 6 , the spoiler structure 2 is in the shape of “ ” and includes a first partition plate 22, a second partition plate 23, and a third partition plate 24.

[0082] The first partition plate 22 is arranged opposite to the bottom wall of the drainage cavity 141 with a spacing, and both end edges of the first partition plate 22 are connected to the inner side wall of the inner cavity 14.

[0083] The second partition plate 23 is arranged at one side of the first partition plate 22 with an angle, the free end of the second partition plate 23 is connected to the bottom wall of the drainage cavity 141, and both end edges of the second partition plate 23 are connected to the inner side wall of the inner cavity 14. Optionally, the second partition plate 23 is arranged perpendicular to the first partition plate 22, and the connection between them is preferably in the shape of a right angle. Compared with the connection between them in the shape of a smooth curve, the connection in the shape of a right angle can play a role in spoiler, so that the water temperature in the energy storage cavity 142 is more uniform, avoiding the water flow temperature in the part of the energy storage cavity 142 close to the spoiler structure 2 being lower.

[0084] The third partition plate 24 is arranged at the other side of the first partition plate 22 with an angle, the free end of the third partition plate 24 is connected to the bottom wall of the drainage cavity 141, and both end edges of the third partition plate 24 are connected to the inner side wall of the inner cavity 14. Optionally, the third partition plate 24 is arranged perpendicular to the first partition plate 22, and the connection between them is preferably in the shape of a right angle. Compared with the connection between them in the shape of a smooth curve, the connection in the shape of a right angle can play a role in spoiler, so that the water temperature in the energy storage cavity 142 is more uniform, avoiding the water flow temperature in the part of the energy storage cavity 142 close to the spoiler structure 2 being lower.

[0085] The surfaces of the first partition plate 22, the second partition plate 23, and the third partition plate 24 towards the drainage cavity 141 constitute the first surface of the spoiler structure 2; the surfaces of the first partition plate 22, the second partition plate 23, and the third partition plate 24 towards the energy storage cavity 142 constitute the second surface of the spoiler structure 2.

[0086] Further optionally, in some other embodiments, all edges of the turbulence structure 2 are connected to the bottom wall of the drainage cavity 141, and the first surface of the turbulence structure 2 and the inner surface of the water tank form an energy storage cavity 142; the second surface of the turbulence structure 2 and the inner surface of the water tank form a drainage cavity 141. For example, the turbulence structure 2 is a hollow hemispherical structure.

[0087] Furthermore, in one embodiment, at least one of the first partition 22, the second partition 23, and the third partition 24 is provided with a through hole 21, through which the energy storage chamber 142 and the drainage chamber 141 are connected. Specifically, the first partition 22, the second partition 23, and the third partition 24 are all provided with through holes 21, which on the one hand ensures the speed of hot water supply from the energy storage chamber 142 to the drainage chamber 141, and on the other hand allows the hot water in the energy storage chamber 142 to flow into the drainage chamber 141 from different directions, thus ensuring that the hot and cold water in the drainage chamber 141 can be mixed evenly, thereby ensuring the constant temperature effect of the water heater.

[0088] Specifically, when the water tank is in use, the axis of the water tank is along... Figure 7 and Figure 9 The arrangement is in the vertical direction, as shown by gravity. The hot water in the energy storage chamber 142 can also flow into the drain chamber 141 under its own gravity, accelerating the mixing of cold and hot water in the drain chamber 141 and ensuring the constant temperature effect of the water heater.

[0089] Furthermore, the water tank is generally cylindrical in shape. Of course, in other embodiments, the axis of the water tank can also be arranged horizontally.

[0090] Specifically, in one embodiment, the second inlet 12 is located on the side wall of the water tank, and the outlet 13 is located on the first bottom wall 171 of the water tank. This arrangement extends the mixing path and mixing time of cold water and hot water in the drain chamber 141, and also allows the warm water formed after the cold and hot water are evenly mixed to flow out from the outlet 13 under the action of gravity.

[0091] The turbulence structure 2 is arranged radially along the water tank, with the second inlet 12 located at one end of the turbulence structure 2 and the outlet 13 located at the other end of the turbulence structure 2.

[0092] In one embodiment, through holes 21 are located at one end of the turbulence structure 2 near the second inlet 12. This arrangement allows the bypassed cold water to quickly mix with the hot water flowing in through the through holes 21 when it flows into the drain chamber 141. No through holes 21 are provided at the end of the turbulence structure 2 near the outlet 13 to prevent the hot water flowing into the drain chamber 141 from flowing to the outlet 13 before mixing with the cold water, which would cause the water heater's outlet temperature to exceed the set outlet temperature and negatively impact the user experience.

[0093] Specifically, compared with the water outlet 13, the through holes 21 on the first partition plate 22, the second partition plate 23 and the third partition plate 24 are all distributed at one end close to the second water inlet 12.

[0094] In the specific contents of the foregoing specific embodiments, each technical feature can be combined arbitrarily without contradiction. In order to make the description simple, all possible combinations of the foregoing technical features are not described, however, as long as the combination of the technical features does not exist contradiction, it should be considered as the scope of the description.

[0095] The specific contents of the foregoing specific embodiments only express several embodiments of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A gas water heater comprising a burner and a water inlet pipe (30), a heat exchanger (20) and a water outlet pipe (50) connected in sequence, the burner being capable of supplying heat to the heat exchanger (20), the water inlet pipe (30) being provided with a flow sensor (302), characterized in that, The water outlet pipe (50) comprises a first water outlet section (501) and a second water outlet section (502), the inlet end of the first water outlet section (501) is communicated with the outlet end of the heat exchanger (20), and the gas water heater further comprises: A water tank has a first water inlet (11), a second water inlet (12) and a water outlet (13), a turbulence structure (2) is arranged in the water tank, the turbulence structure (2) separates an inner cavity (14) of the water tank into an energy storage cavity (142) and a drainage cavity (141), at least part of the edge of the turbulence structure (2) is connected with the bottom wall of the inner cavity (14), the energy storage cavity (142) and the drainage cavity (141) are communicated through the turbulence structure (2), the first water inlet (11) is located on the side wall of the energy storage cavity (142), the second water inlet (12) and the water outlet (13) are located on the side wall of the drainage cavity (141), the outlet end of the first water outlet section (501) is communicated with the first water inlet (11), and the water outlet (13) is communicated with the inlet end of the second water outlet section (502); A bypass pipe (40) is communicated with the water inlet pipe (30) at one end and communicated with the second water inlet (12) at the other end, and the bypass pipe (40) is provided with a control valve (401).

2. The gas water heater of claim 1, wherein, The turbulence structure (2) is provided with a through hole (21) for communicating the energy storage cavity (142) and the drainage cavity (141).

3. The gas water heater of claim 2, wherein, The number of the through holes (21) is multiple.

4. The gas water heater of claim 2, wherein, In the radial direction of the water tank, the second water inlet (12) is located at one end of the radial direction of the water tank, and the water outlet (13) is located at the other end of the radial direction of the water tank.

5. The gas water heater of claim 4, wherein, The through holes (21) are distributed on one end of the turbulence structure (2) close to the second water inlet (12).

6. The gas water heater of claim 1, wherein, The turbulence structure (2) comprises: A first partition plate (22) is oppositely arranged with the bottom wall of the drainage cavity (141), and the two end edges of the first partition plate (22) are connected with the inner side wall of the inner cavity (14); A second partition plate (23) is arranged at an angle on one side of the first partition plate (22), the free end of the second partition plate (23) is connected with the bottom wall of the drainage cavity (141), and the two end edges of the second partition plate (23) are connected with the inner side wall of the inner cavity (14); A third partition plate (24) is arranged at an angle on the other side of the first partition plate (22), the free end of the third partition plate (24) is connected with the bottom wall of the drainage cavity (141), and the two end edges of the third partition plate (24) are connected with the inner side wall of the inner cavity (14).

7. The gas water heater of claim 6, wherein, At least one of the first partition plate (22), the second partition plate (23) and the third partition plate (24) is provided with a through hole (21), and the energy storage cavity (142) and the drainage cavity (141) are communicated through the through hole (21).

8. The gas water heater of claim 1, wherein, The gas water heater further comprises a tank mounting member (3) arranged on the water tank, and the tank mounting member (3) is provided with a mounting hole (31).

9. The gas water heater according to any one of claims 1 to 8, wherein, The water tank further comprises: a tank body (15) in which the inner cavity (14) with two open ends is arranged; a first cover (16) covering the first end opening of the inner cavity (14); a second cover (17) covering the second end opening of the inner cavity (14), part of the edge of the spoiler structure (2) abutting against the inner surface of the tank body (15), and the rest of the edge of the spoiler structure (2) abutting against the inner surface of the second cover (17).

10. The gas water heater of claim 9, wherein, The first water inlet (11) is arranged on the first cover (16), the second water inlet (12) is arranged on the side wall of the tank body (15), and the water outlet (13) is arranged on the second cover (17).

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