CN111550926A

CN111550926A - Heat exchange piece, heat exchange structure and water heater

Info

Publication number: CN111550926A
Application number: CN202010484029.7A
Authority: CN
Inventors: 张果; 林钦; 胡勇; 王志昂
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2020-08-18

Abstract

The invention discloses a heat exchange part, a heat exchange structure and a water heater. Above-mentioned heat transfer piece, heat transfer structure and water heater are when using, and water passes through the inlet tube and gets into the passageway, when the high temperature flue gas that the heating member produced carries out the heat exchange with heat transfer piece, because under the condition of same height and length, the area of contact of heat transfer portion than straight board and flue gas is will be big, so can indirectly promote the heat exchange efficiency of water and flue gas. Moreover, the heat exchange part obstructs the flow of the flue gas to a certain extent, and further the heat exchange efficiency of water and the flue gas can be further improved. Therefore, when the heat exchange piece, the heat exchange structure and the water heater are used, the heat exchange efficiency is high, and the use cost can be saved.

Description

Heat exchange piece, heat exchange structure and water heater

Technical Field

The invention relates to the technical field of water heaters, in particular to a heat exchange piece, a heat exchange structure and a water heater.

Background

The main heat exchange process of the heat exchanger of the gas water heater comprises the following steps: the heat is transferred to the heat exchange fins by high-temperature flue gas generated by combustion of fuel gas in the combustor, then the heat is transferred to the heat exchange tubes welded together with the heat exchange fins by the heat exchange fins, the heat exchange tubes penetrate through the fins for multiple times, and finally the heat is transferred to water by the inner walls of the heat exchange tubes, so that the water is heated.

However, the heat exchanger of the conventional gas water heater has low heat exchange efficiency, and more gas is needed for generating the same heat, so that the use cost of the gas water heater is higher.

Disclosure of Invention

Based on this, to traditional gas heater's heat exchanger, heat exchange efficiency is low, produces the same heat and needs more gas, causes gas heater's the higher problem of use cost, provides a heat transfer piece, heat transfer structure and water heater, and this heat transfer piece, heat transfer structure and water heater are when using, and heat transfer efficiency is high, can practice thrift use cost.

The specific technical scheme is as follows:

on the one hand, this application relates to a heat transfer spare, heat transfer spare is equipped with the heat transfer portion, the heat transfer portion is the form of bending, the heat transfer portion is equipped with the passageway, the passageway is equipped with and is used for the first water inlet with the inlet tube intercommunication and is used for the first delivery port with the outlet pipe intercommunication.

Above-mentioned heat transfer spare is when using, and water passes through the inlet tube and gets into the passageway, when the high temperature flue gas that the heating member produced carries out the heat exchange with heat transfer spare, because under the condition of same height and length, the area of contact of heat transfer portion than straight board and flue gas is will be big, so can indirectly promote the heat exchange efficiency of water and flue gas. Moreover, the heat exchange part obstructs the flow of the flue gas to a certain extent, and further the heat exchange efficiency of water and the flue gas can be further improved.

The technical solution is further explained below:

in one embodiment, the channel is bent, and the bending tendency of the channel is consistent with that of the heat exchanging part. Therefore, on one hand, the channel is bent, the bending trend of the channel is consistent with that of the heat exchanging part, the wall thickness of the channel can be reduced, and the heat exchanging efficiency of water and high-temperature flue gas in the channel can be improved; on the other hand, the bending trend of the channel is consistent with the bending trend of the heat exchanging part, so that the processing and the forming of the channel are convenient.

In one embodiment, the section of the heat exchanging part is in a shape of a Chinese character 'ao'.

On the other hand, this application still relates to a heat transfer structure, includes the heat transfer member in any above-mentioned embodiment.

Above-mentioned heat transfer structure is when using, and water passes through the inlet tube and gets into the passageway, when the high temperature flue gas that the heating member produced carries out the heat exchange with heat transfer spare, because under the condition of same height and length, the area of contact of heat transfer portion than straight board and flue gas will be big, so can indirectly promote the heat exchange efficiency of water and flue gas. Moreover, the heat exchange part obstructs the flow of the flue gas to a certain extent, and further the heat exchange efficiency of water and the flue gas can be further improved.

The technical solution is further explained below:

in one embodiment, the water dispenser further comprises a water inlet pipe and a water outlet pipe, wherein the water inlet pipe is communicated with the first water inlet, and the water outlet pipe is communicated with the first water outlet. So, supply water to the passageway through the inlet tube, water and flue gas carry out the heat transfer after the exit tube is discharged.

In one embodiment, the number of the heat exchange pieces is at least two, the heat exchange pieces are arranged at intervals, the first water inlet corresponding to each heat exchange piece is communicated with the water inlet pipe, and the first water outlet corresponding to each heat exchange piece is communicated with the water outlet pipe.

In one embodiment, the number of the heat exchange pieces is multiple, at least two heat exchange pieces are arranged at intervals along the first direction to form heat exchange piece layers, and the number of the heat exchange piece layers is at least two and is arranged at intervals along the second direction. Therefore, on one hand, the more the number of the heat exchange pieces is, the more the heat exchange structure and the high-temperature flue gas exchange heat, and the higher the utilization rate of the high-temperature flue gas is; on the other hand, set up two-layer heat transfer spare layers at least, can increase heat transfer area, more abundant carry out the contact heat transfer with high temperature flue gas.

In one embodiment, the water storage device further comprises a first flow dividing member, the first flow dividing member is provided with a first water storage cavity, and a second water inlet and a second water outlet which are both communicated with the first water storage cavity, the number of the second water outlets is at least two, the water inlet pipe is communicated with the first water inlet through the first flow dividing member, one of the second water outlets corresponds to one of the first water inlet, and the second water inlet is communicated with the water inlet pipe. So, when using, the inlet tube carries water to first water storage chamber, through first water storage chamber with moisture reposition of redundant personnel to every second delivery port, and then realizes splitting moisture to every heat transfer piece, so realize the distribution of water, make every heat transfer piece all have water and high temperature flue gas to carry out the heat transfer, the heat transfer finishes the back water and concentrates on discharging from the outlet pipe.

In one embodiment, the number of the second water outlets is multiple, at least two second water outlets are arranged at intervals along a third direction to form water outlet layers, and the number of the water outlet layers is at least two and is arranged at intervals along a fourth direction. Therefore, the arrangement mode of the second water outlets is consistent with that of the heat exchange pieces, and the first shunting pieces and the heat exchange pieces are convenient to install.

In one embodiment, the water storage device further comprises a second flow dividing member, the second flow dividing member is provided with a second water storage cavity, and a third water inlet and a third water outlet which are both communicated with the second water storage cavity, the number of the third water inlets is at least two, the water outlet pipe is communicated with the first water outlet through the second flow dividing member, one third water inlet corresponds to one first water outlet, and the third water outlet is communicated with the water outlet pipe. So, when using, after the water heat transfer in each heat transfer piece finishes, get into second water storage chamber through corresponding first delivery port and third inlet port, then arrange to the outlet pipe through second water storage chamber and discharge.

In one embodiment, the number of the third water inlet is multiple, at least two third water inlets are arranged at intervals along a fifth direction to form water inlet layers, and the number of the water inlet layers is at least two and is arranged at intervals along a sixth direction.

On the other hand, the application also relates to a water heater, which comprises the heat exchange structure in any embodiment; or a heat exchange member as in any of the embodiments above.

When the water heater is used, water enters the channel through the water inlet pipe, high-temperature flue gas generated by the heating element exchanges heat with the heat exchange element, and the heat exchange part is larger than the contact area of the straight plate and the flue gas under the conditions of the same height and the same length, so that the heat exchange efficiency of the water and the flue gas can be indirectly improved. Moreover, the heat exchange part obstructs the flow of the flue gas to a certain extent, and further the heat exchange efficiency of water and the flue gas can be further improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.

Furthermore, the drawings are not to scale of 1:1, and the relative dimensions of the various elements in the drawings are drawn only by way of example and not necessarily to true scale.

FIG. 1 is a schematic diagram of a heat exchanger according to an embodiment;

FIG. 2 is a schematic view of a heat exchanging element according to an embodiment;

FIG. 3 is a schematic view of an embodiment of heat exchange member arrangement;

FIG. 4 is a schematic structural view of a first shunt member according to an embodiment;

FIG. 5 is a schematic structural view of a first shunt member in another embodiment;

FIG. 6 is a schematic structural view of a second shunt member according to an embodiment;

fig. 7 is a schematic structural diagram of a second shunt member in another embodiment.

Description of reference numerals:

10. a water heater; 100. a heat exchange member; 120. a heat exchanging part; 122. a channel; 1222. a first water inlet; 200. a fin; 300. a water inlet pipe; 400. a water outlet pipe; 500. a first flow dividing member; 510. a second water inlet; 520. a second water outlet; 530. a water outlet layer; 600. a second flow divider; 610. a third water inlet; 620. a third water outlet; 630. a water inlet layer.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Traditional gas heater's heat exchanger, heat exchange efficiency is low, produces the same heat and needs more gas, causes gas heater's use cost higher, and based on this, this application has proposed a heat transfer piece 100, heat transfer structure and water heater 10, and this heat transfer piece 100, heat transfer structure and water heater 10 are when using, and heat transfer efficiency is high, can practice thrift use cost.

Specifically, referring to fig. 1, in an embodiment, the water heater 10 includes a heat exchange structure, fins 200, a heating member and a fan, the fins 200 are provided with mounting holes, the heating member is disposed in the mounting holes in a penetrating manner, the heat exchange structure and the fins 200 are both disposed between the fan and the heating member, the heating member heats the gas to generate high-temperature flue gas, and the high-temperature flue gas passes through the heat exchange structure under the action of the fan to exchange heat with water in the heat exchange structure.

Further, referring to fig. 2, in one embodiment, the heat exchange structure includes a heat exchange member 100, the heat exchange member 100 is provided with a heat exchange portion 120, the heat exchange portion 120 is bent, the heat exchange portion 120 is provided with a channel 122, and the channel 122 is provided with a first water inlet 1222 for communicating with the water inlet pipe 300 and a first water outlet for communicating with the water outlet pipe 400.

When the water heater 10 is used, water enters the channel 122 through the water inlet pipe 300, and when high-temperature flue gas generated by the heating element exchanges heat with the heat exchange element 100, the heat exchange part 120 has a larger contact area with the flue gas than a straight plate under the condition of the same height and length, so that the heat exchange efficiency of the water and the flue gas can be indirectly improved. Moreover, the heat exchanging portion 120 obstructs the flow of the flue gas to some extent, and thus the heat exchanging efficiency between water and the flue gas can be further improved.

Alternatively, the water heater 10 may be a gas water heater.

It is to be noted that the heat exchanging part 120 of the heat exchanging member 100 refers to a part directly contacting with the fume generated by heating of the heating member or the fin 200 for heat exchange.

Alternatively, the heating member may be a heater or the like that can heat the gas; the fan can be a suction fan, and the flue gas is subjected to heat exchange through the heat exchange structure under the action of the fan.

Specifically, in one embodiment, the shape of the mounting hole matches the shape of the heat exchanging part 120, so that the mounting of the heat exchanging element 100 can be facilitated.

Further, referring to fig. 2, the channel 122 is bent, and the bending tendency of the channel 122 is consistent with the bending tendency of the heat exchanging portion 120. Therefore, on one hand, the channel 122 is bent, and the bending trend of the channel 122 is consistent with that of the heat exchanging part 120, so that the wall thickness of the channel 122 can be reduced, and the heat exchanging efficiency of water in the channel 122 and high-temperature flue gas can be improved; on the other hand, matching the bending tendency of the passage 122 with that of the heat exchanging portion 120 facilitates the machining and molding of the passage 122. Specifically, the heat exchanging element 100 may be a bent profile or a plurality of profiles welded separately, and the material of the heat exchanging element 100 should be heat conductive.

Alternatively, the heat exchanger 100 may be in the shape of an "H", an "S", or an "l", which has a bent structure. In order to improve the heat exchange effect of the heat exchange member 100, the channel 122 formed in the heat exchange member 100 may be configured to have a structure similar to that of the heat exchange member 100 itself, for example, when the heat exchange member 100 is H-shaped, the channel 122 may also be H-shaped; when heat exchange member 100 is "S" shaped, channel 122 may also be "S" shaped. As shown in fig. 2, the heat exchanging portion 120 is "y" shaped, and the channel has a similar structure to the heat exchanging portion 120, so that the wall thickness of the channel 122 can be reduced, and the heat exchanging efficiency between the water in the channel 122 and the high temperature flue gas can be improved.

Further, referring to fig. 1, the heat exchange structure further includes a water inlet pipe 300 and a water outlet pipe 400, the water inlet pipe 300 is communicated with the first water inlet 1222, and the water outlet pipe 400 is communicated with the first water outlet. Thus, water is supplied to the passage 122 through the water inlet pipe 300, and the water exchanges heat with the flue gas and is discharged through the water outlet pipe 400.

Further, referring to fig. 3, the number of the heat exchange members 100 is at least two, the heat exchange members 100 are arranged at intervals, the first water inlet 1222 corresponding to each heat exchange member 100 is communicated with the water inlet pipe 300, and the first water outlet corresponding to each heat exchange member 100 is communicated with the water outlet pipe 400. So, can form the clearance when heat transfer piece 100 intervals set up, this moment high temperature flue gas can flow along this clearance, and then can be that the flue gas is abundant to carry out the heat transfer with water.

Specifically, referring to fig. 3, in one embodiment, the number of the heat exchange members 100 is multiple, at least two heat exchange members 100 are arranged at intervals along a first direction to form heat exchange member layers, the number of the heat exchange member layers is at least two, and the heat exchange member layers are arranged at intervals along a second direction, so that, on one hand, the more the number of the heat exchange members 100 is, the more the heat exchange structure exchanges heat with the high-temperature flue gas, and the higher the utilization rate of the high-temperature flue gas is; on the other hand, set up two-layer heat transfer spare layers at least, can increase heat transfer area, more abundant carry out the contact heat transfer with high temperature flue gas.

Optionally, the number of heat exchangers 100 in the heat exchanger layer can be set according to the heat exchange requirement and the size of the installation space, and only the interval setting of heat exchangers 100 in each heat exchanger layer needs to be satisfied.

Specifically, as shown in fig. 3, the first direction may be a lateral direction and the second direction may be a longitudinal direction; depending on the assembly, in other embodiments, the first direction may be a longitudinal direction and the second direction may be a transverse direction.

Further, please refer to fig. 3, the heat exchanging element layer is two layers, and is arranged along the longitudinal interval, and meanwhile, the heat exchanging elements 100 in each heat exchanging element layer are arranged along the transverse interval, so the arrangement can obstruct the flow of the high temperature flue gas, the high temperature flue gas is fully contacted with the heat exchanging elements 100, and further the heat exchanging effect of the high temperature flue gas and the water in the heat exchanging elements 100 is improved.

Referring to fig. 1, in the present embodiment, the number of the fins 200 is also multiple, the fins 200 are arranged at intervals, the arrangement of the fins 200 is adapted to the arrangement of the heat exchange member 100, and when the heat exchange member 100 is installed, a plurality of fins 200 are inserted into a single heat exchange member 100 along the transverse direction.

Referring to fig. 4 and 5, based on the foregoing embodiment, the heat exchange structure further includes a first flow divider 500, the first flow divider 500 is provided with a first water storage cavity, and a second water inlet 510 and a second water outlet 520 both communicated with the first water storage cavity, the number of the second water outlets 520 is at least two, the water inlet pipe 300 is communicated with the first water inlet 1222 through the first flow divider 500, one second water outlet 520 corresponds to one first water inlet 1222, and the second water inlet 510 is communicated with the water inlet pipe 300. So, when using, inlet tube 300 carries water to first water storage chamber, through first water storage chamber with moisture reposition of redundant personnel to every second delivery port 520, and then realize moisture reposition of redundant personnel to every heat exchange member 100, so realize the distribution of water, make every heat exchange member 100 all have water and high temperature flue gas to carry out the heat transfer, the back water concentration that the heat transfer finishes is discharged from outlet pipe 400.

Referring to fig. 5, in particular, the second water outlet 520 is bent and has a shape matching with the first water inlet 1222, so that the first water inlet 1222 and the second water outlet 520 are conveniently installed.

Referring to fig. 5, in this embodiment, the number of the second water outlets 520 is multiple, at least two second water outlets 520 are arranged at intervals along the third direction to form a water outlet layer 530, the number of the water outlet layers 530 is at least two, and the water outlet layers 530 are arranged at intervals along the fourth direction; in this way, the arrangement of the second water outlets 520 is consistent with that of the heat exchange member 100, which facilitates the installation of the first flow divider 500 and the heat exchange member 100.

Specifically, as shown in fig. 5, the third direction may be a lateral direction, and the fourth direction may be a longitudinal direction; depending on the assembly, in other embodiments, the third direction may be a longitudinal direction, and the fourth direction may be a transverse direction.

Optionally, the number of the second water outlets 520 in the water outlet layer 530 may be set according to the number of the heat exchanging elements, and the second water outlets 520 in each layer of the water outlet layer 530 may be set at intervals.

Specifically, in this embodiment, the first shunting member 500 is fixedly connected to the water inlet pipe 300 and the heat exchanging member 100 by welding.

Referring to fig. 6 and 7, based on the foregoing embodiment, the heat exchange structure further includes a second flow dividing member 600, the second flow dividing member 600 is provided with a second water storage cavity, and a third water inlet 610 and a third water outlet 620 both communicated with the second water storage cavity, the number of the third water inlets 610 is at least two, the water outlet pipe 400 is communicated with the first water outlet through the second flow dividing member 600, one third water inlet 610 corresponds to one first water outlet, and the third water outlet 620 is communicated with the water outlet pipe 400. Therefore, when in use, after the heat exchange of water in each heat exchange element 100 is completed, the water enters the second water storage cavity through the corresponding first water outlet and the corresponding third water inlet 610, and is discharged to the water outlet pipe 400 through the second water storage cavity.

Further, above-mentioned heat transfer structure is when using, inlet tube 300 carries water to first water storage chamber, through first water storage chamber with water reposition of redundant personnel to every second delivery port 520, and then realize with water reposition of redundant personnel to every heat transfer piece 100, so realize the distribution of water, make every heat transfer piece 100 all have water and high temperature flue gas to carry out the heat transfer, the back water concentration that the heat transfer finishes is discharged from outlet pipe 400, after the water heat transfer in each heat transfer piece 100 finishes, get into the second water storage chamber through corresponding first delivery port and third inlet port 610, then discharge to outlet pipe 400 through the second water storage chamber.

Further, referring to fig. 7, in the present embodiment, the number of the third water inlets 610 is multiple, at least two third water inlets 610 are arranged at intervals along the fifth direction to form the water inlet layers 630, the number of the water inlet layers 630 is at least two, and the water inlet layers 630 are arranged at intervals along the sixth direction. In this way, the arrangement of the third water inlets 610 is consistent with that of the heat exchange member 100, which facilitates the installation of the second flow divider 600 and the heat exchange member 100.

Specifically, as shown in fig. 7, the fifth direction may be a lateral direction, and the sixth direction may be a longitudinal direction; depending on the assembly, in other embodiments, the fifth direction may be a longitudinal direction and the sixth direction may be a transverse direction.

Optionally, the number of the third water inlets 610 in the water inlet layer 630 may be set according to the number of the heat exchanging elements, and it is sufficient that the third water inlets 610 in each water inlet layer 630 are arranged at intervals.

Referring to fig. 7, specifically, the third water inlet 610 is bent and has a shape matching the shape of the first water outlet, so that the third water inlet 610 and the second water outlet 520 are conveniently installed.

Specifically, in this embodiment, the second flow dividing member 600 is connected and fixed with the water outlet pipe 400 and the heat exchanging member 100 by welding.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a heat exchange member, its characterized in that, heat exchange member is equipped with the heat transfer portion, the heat transfer portion is the form of bending, the heat transfer portion is equipped with the passageway, the passageway is equipped with and is used for the first water inlet with the inlet tube intercommunication and is used for the first delivery port with the outlet pipe intercommunication.

2. The heat exchange member of claim 1, wherein the channel is bent, and a bending tendency of the channel is consistent with a bending tendency of the heat exchange portion.

3. A heat exchange member according to claim 1, wherein the heat exchange portion has a cross-section of a "".

4. A heat exchange structure comprising the heat exchange member according to any one of claims 1 to 3.

5. The heat exchange structure of claim 4, further comprising a water inlet pipe and a water outlet pipe, wherein the water inlet pipe is communicated with the first water inlet, and the water outlet pipe is communicated with the first water outlet.

6. The heat exchange structure of claim 5, wherein the number of the heat exchange members is at least two, the heat exchange members are arranged at intervals, the first water inlet corresponding to each heat exchange member is communicated with the water inlet pipe, and the first water outlet corresponding to each heat exchange member is communicated with the water outlet pipe.

7. The heat exchange structure according to claim 6, wherein the number of the heat exchange members is plural, at least two heat exchange members are arranged at intervals in the first direction to form heat exchange member layers, and the number of the heat exchange member layers is at least two and is arranged at intervals in the second direction.

8. The heat exchange structure according to claim 6 or 7, further comprising a first flow divider, wherein the first flow divider is provided with a first water storage cavity, and a second water inlet and a second water outlet both communicated with the first water storage cavity, the number of the second water outlets is at least two, the water inlet pipe is communicated with the first water inlet through the first flow divider, one of the second water outlets corresponds to one of the first water inlets, and the second water inlet is communicated with the water inlet pipe.

9. The heat exchange structure according to claim 8, wherein the number of the second water outlets is multiple, at least two of the second water outlets are arranged at intervals along a third direction to form water outlet layers, and the number of the water outlet layers is at least two and is arranged at intervals along a fourth direction.

10. The heat exchange structure according to claim 9, further comprising a second flow dividing member, wherein the second flow dividing member defines a second water storage cavity, and a third water inlet and a third water outlet both communicated with the second water storage cavity, the number of the third water inlets is at least two, the water outlet pipe is communicated with the first water outlet through the second flow dividing member, one of the third water inlets corresponds to one of the first water outlets, and the third water outlet is communicated with the water outlet pipe.

11. The heat exchange structure of claim 10, wherein the number of the third water inlet is plural, at least two third water inlets are arranged at intervals along a fifth direction to form water inlet layers, and the number of the water inlet layers is at least two and is arranged at intervals along a sixth direction.

12. A water heater comprising the heat exchange structure of any one of claims 4 to 11; or comprising a heat exchange element according to any of claims 1 to 3.