Heat exchange assembly and water heater

Abstract

The utility model discloses a heat exchange assembly and a water heater, the heat exchange assembly comprises a heat exchanger and a box body, the heat exchanger comprises at least three heat exchange tubes, the at least three heat exchange tubes are arranged side by side and are communicated, and one of the heat exchange tubes in the middle is the most upstream heat exchange tube for water inflow; a combustion chamber is formed in the box body, and the end, facing the heat exchanger, of the combustion chamber is provided with an opening. According to the technical scheme, the heat exchange efficiency of the heat exchanger is improved.

Description

Technical Field

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

[0002] The inlet and outlet pipes of the existing gas water heater heat exchanger are usually routed from one side to the other side in sequence. Although this structure is simple, the heat exchange efficiency is low. Therefore, under the same heat exchange efficiency, the material cost of this structure is high and the waste is large. Utility Model Content

[0003] The main purpose of the utility model is to provide a heat exchange component, aiming to improve the heat exchange efficiency of the heat exchanger of the water heater.

[0004] To achieve the above purpose, the heat exchange component proposed by the utility model includes:

[0005] A heat exchanger, comprising at least three heat exchange tubes, wherein the at least three heat exchange tubes are arranged side by side and are connected, and one of the heat exchange tubes located in the middle is the most upstream heat exchange tube for water intake; and

[0006] The box body has a combustion chamber formed inside. The combustion chamber is provided with an opening at one end facing the heat exchanger. The combustion chamber is provided with a guide structure, which is used to guide the flue gas in the combustion chamber to gather toward the position close to the most upstream heat exchange tube through the opening.

[0007] In one embodiment, the number of the heat exchange tubes is an odd number, and the most upstream heat exchange tube is the heat exchange tube located in the middle.

[0008] In one embodiment, the heat exchanger further includes a water inlet pipe and a water outlet pipe, and at least three heat exchange pipes are connected in series between the water inlet pipe and the water outlet pipe.

[0009] In one embodiment, the heat exchanger further comprises a plurality of fins arranged along the length direction of the heat exchange tube, each of the fins has a heat exchange hole for at least three heat exchange tubes to pass through, and the heat exchange tubes pass through the heat exchange hole and are connected to the fins.

[0010] In one embodiment, the fin includes a first heat exchange part and a second heat exchange part, the first heat exchange part is sleeved on the periphery of the most upstream heat exchange tube, the second heat exchange part is sleeved on the periphery of other heat exchange tubes, and the heat exchange area of ​​the first heat exchange part is larger than the heat exchange area of ​​the second heat exchange part.

[0011] In one embodiment, at least three of the heat exchange tubes are arranged side by side along a first direction, and the heat exchanger further includes a first mounting plate and a second mounting plate arranged opposite to each other along a second direction, and the first mounting plate and the second mounting plate are correspondingly provided with mounting holes for the ends of the heat exchange tubes to pass through, wherein the first direction intersects with the second direction.

[0012] In one embodiment, the box body includes a first side plate and a second side plate arranged opposite to each other along the second direction, the first mounting plate is mounted on the top of the first side plate, and the second mounting plate is mounted on the top of the second side plate;

[0013] The first side plate has a first guide surface near the heat exchanger, and the second side plate has a second guide surface near the heat exchanger. The first guide surface and the second guide surface are inclined toward the middle of the box body in the flow direction of the smoke.

[0014] In one embodiment, the first side panel includes a first inner panel and a first outer panel, and a first air insulation layer is formed between the first inner panel and the first outer panel;

[0015] And / or, the second side panel includes a second inner panel and a second outer panel, and a second air insulation layer is formed between the second inner panel and the second outer panel.

[0016] In one embodiment, the box body also includes a third side plate and a fourth side plate arranged relatively to each other along the first direction, and the third side plate, the first mounting plate, the fourth side plate, and the second mounting plate together form a heat exchange chamber for accommodating at least three heat exchange tubes, and the space below the heat exchange chamber in the box body corresponding to the combustion chamber forms the combustion chamber.

[0017] In addition, to achieve the above-mentioned purpose, the utility model also provides a water heater, including the heat exchange component as described above.

[0018] The technical solution of the utility model is to set a heat exchange component and a water heater. The heat exchange component includes a heat exchanger and a box. The heat exchanger includes at least three heat exchange tubes, which are arranged side by side and connected. One of the heat exchange tubes in the middle is the most upstream heat exchange tube for water intake. A combustion chamber is formed inside the box. An opening is provided at one end of the combustion chamber facing the heat exchanger, and the combustion chamber is provided with a flow guide structure. The technical solution of the utility model is to set one of the heat exchange tubes in the middle as the most upstream heat exchange tube, and the most upstream heat exchange tube is connected to cold water, so that the temperature difference of the most upstream heat exchange tube can be increased, and the heat exchange efficiency of the heat exchanger can be improved. At the same time, the flow guide structure provided in the combustion chamber of the box can guide the smoke in the combustion chamber to gather toward the part close to the most upstream heat exchange tube through the opening, so that the temperature of the most upstream heat exchange tube is further increased, that is, the temperature difference is further increased, and the heat exchange efficiency of the heat exchanger is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 This is a structural schematic diagram of an embodiment of a heat exchange component of the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0022] Figure 3 for Figure 1 A structural schematic diagram from another angle;

[0023] Figure 4 for Figure 1 Schematic diagram of the local structure;

[0024] Figure 5 This is a schematic structural diagram of an embodiment of a heat exchanger of the utility model;

[0025] Figure 6 for Figure 5 Another top view of

[0026] Figure 7 for Figure 5 A front view of

[0027] Figure 8 for Figure 5 Left view of;

[0028] Fig. 9 for Figure 5 Right view of .

[0029] Description of Figure Numbers:

[0030]

[0031]

[0032] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0036] The inlet and outlet pipes of the existing gas water heater heat exchanger are usually routed from one side to the other side in sequence. Although this structure is simple, the heat exchange efficiency is low. Therefore, under the same heat exchange efficiency, the material cost of this structure is high and the waste is large.

[0037] In order to solve the above problems, the utility model proposes a heat exchange assembly 10, which aims to improve the heat exchange efficiency of the heat exchanger 11 of the water heater.

[0038] Reference Figures 1 to 4 In one embodiment of the present utility model, the heat exchange component 10 includes:

[0039] The heat exchanger 11 comprises at least three heat exchange tubes 111 arranged side by side and connected to each other, wherein one of the heat exchange tubes 111 located in the middle is the most upstream heat exchange tube for water intake; and

[0040] The box body 12 has a combustion chamber 13 formed therein. The combustion chamber 13 has an opening at one end facing the heat exchanger 11. The combustion chamber 13 is provided with a guide structure 131. The guide structure 131 is used to guide the flue gas in the combustion chamber 13 to gather toward the position close to the most upstream heat exchange tube through the opening.

[0041] It is understandable that the heat exchange assembly 10 of this embodiment is used for gas equipment, which is not limited to a specific equipment, and can be a gas water heater, a gas furnace or a gas wall-mounted boiler, etc. The following description takes a gas water heater as an example.

[0042] Optionally, the gas water heater may include but is not limited to a burner, a fan assembly and a heat exchange assembly 10. The heat exchange assembly 10 includes a heat exchanger 11 and a housing 12, a combustion chamber 13 is formed in the housing 12, and the fan assembly, the heat exchanger 11, the combustion chamber 13 and the burner are arranged in sequence from top to bottom, that is, the fan assembly, the heat exchanger 11, the housing 12 and the burner are arranged in sequence from top to bottom. The burner plays the role of ignition and combustion. The combustion chamber 13 formed in the housing 12 provides a combustion space for the combustion of gas and air, and the high-temperature flue gas generated after the mixed combustion of gas and air flows upward to the heat exchanger 11 to heat the water pipe in the heat exchanger 11, thereby realizing the heat exchange function of the gas water heater. The fan assembly plays the role of driving the gas and air into the combustion chamber 13 for combustion and transporting the high-temperature flue gas after combustion to the heat exchanger 11 for heat exchange, and then discharging the exhaust gas after heat exchange. The following mainly describes in detail the specific implementation of the assembly structure (heat exchanger 11 and housing 12) of the heat exchange assembly 10.

[0043] In this embodiment, the heat exchanger 11 includes at least three heat exchange tubes 111, and the at least three heat exchange tubes 111 are arranged side by side and connected. Optionally, the at least three heat exchange tubes 111 can be arranged side by side in a first direction or in a second direction, wherein the first direction can be the thickness direction of the box body 12, and the second direction can be the width direction of the box body 12. In order not to increase the installation area, in this embodiment, the at least three heat exchange tubes 111 are arranged side by side in the first direction.

[0044] Based on the above content, according to Fourier's law "In the phenomenon of heat conduction, the amount of heat passing through a given cross section per unit time is proportional to the rate of temperature change and the cross-sectional area in the direction perpendicular to the cross section, and the direction of heat transfer is opposite to the direction of temperature increase", it can be seen that the greater the heat exchange temperature difference, the larger the heat exchange area, and the higher the heat exchange efficiency. Therefore, in order to increase the temperature difference and improve the heat exchange efficiency, in the present embodiment, one of the heat exchange tubes 111 located in the middle is the upstream heat exchange tube for water intake, and the determination of the upstream heat exchange tube is mainly related to the number of the heat exchange tubes 111. For example, when the number of the heat exchange tubes 111 is three, the three heat exchange tubes 111 are arranged side by side along the first direction, and the upstream heat exchange tube is the second heat exchange tube; or, when the number of the heat exchange tubes 111 is four, the four heat exchange tubes 111 are arranged side by side along the first direction, and the upstream heat exchange tube is the second heat exchange tube or the third heat exchange tube; or, when the number of the heat exchange tubes 111 is five, the five heat exchange tubes 111 are arranged side by side along the first direction, and the upstream heat exchange tube is any one of the second heat exchange tube, the third heat exchange tube, and the fourth heat exchange tube. This is because when the gas water heater is burning, the temperature of the heat exchange tube 111 located in the middle is high, and the temperature of the heat exchange tubes 111 located on both sides is low, so one of the heat exchange tubes 111 located in the middle is set as the upstream heat exchange tube to connect the water inlet pipe 113 and other water inlet components, so that one of the heat exchange tubes 111 located in the middle is connected to cold water with a lower temperature, which can increase the heat exchange temperature difference of the heat exchanger 11 and improve the heat exchange efficiency of the heat exchanger 11.

[0045] Moreover, a combustion chamber 13 is formed in the box body 12, and an opening is provided at one end of the combustion chamber 13 facing the heat exchanger 11. The combustion chamber 13 provides a combustion space for the combustion of gas and air. The high-temperature flue gas generated after the gas and air are mixed and burned flows upward, and flows to the heat exchanger 11 through the opening to heat at least three heat exchange tubes 111 in the heat exchanger 11, thereby realizing the heating function of the liquid (water) in the heat exchange tube 111. The combustion chamber 13 is provided with a guide structure 131. The guide structure 131 can guide the high-temperature flue gas after combustion to move closer to the part close to the most upstream heat exchange tube through the opening, so that the external temperature of the most upstream heat exchange tube and the heat exchange tube 111 adjacent to the most upstream heat exchange tube increases, thereby increasing the temperature rise of the most upstream heat exchange tube, and then improving the heat exchange efficiency of the heat exchanger 11.

[0046] The technical solution of the utility model is to set up a heat exchange component 10 and a water heater. The heat exchange component 10 includes a heat exchanger 11 and a box body 12. The heat exchanger 11 includes at least three heat exchange tubes 111. The at least three heat exchange tubes 111 are arranged side by side and connected. One of the heat exchange tubes 111 located in the middle is the upstream heat exchange tube for water intake. A combustion chamber 13 is formed inside the box body 12. The combustion chamber 13 is open at one end facing the heat exchanger 11, and the combustion chamber 13 is provided with a flow guide structure 131. The technical solution of the utility model sets one of the heat exchange tubes 111 located in the middle as the upstream heat exchange tube, and the upstream heat exchange tube is connected to cold water, which can increase the temperature difference of the upstream heat exchange tube and improve the heat exchange efficiency of the heat exchanger 11. At the same time, the guide structure 131 set in the combustion chamber 13 of the box body 12 can guide the flue gas in the combustion chamber 13 to gather through the open port toward the part close to the upstream heat exchange tube, so that the temperature of the upstream heat exchange tube is further increased, that is, the temperature difference is further increased, and the heat exchange efficiency of the heat exchanger 11 is effectively improved.

[0047] Reference Figure 5 and Figure 6 In one embodiment of the present invention, the number of the heat exchange tubes 111 is an odd number, and the most upstream heat exchange tube is the heat exchange tube 111 located in the middle.

[0048] In this embodiment, the number of heat exchange tubes 111 is an odd number, for example, the number of heat exchange tubes 111 can be three or five, etc. The following is a detailed description of a specific implementation method in which the number of heat exchange tubes 111 is three. It can be seen from the above embodiment that the three heat exchange tubes 111 are arranged side by side along the first direction. Since the external temperature of the heat exchange tube 111 located in the middle is higher when the gas water heater is burning, and the external temperature of the heat exchange tubes 111 located on both sides is lower, the present embodiment further sets the heat exchange tube 111 located in the middle as the upstream heat exchange tube, so that the cold water of the external water inlet pipe 113 and other water inlet components can directly enter the middle heat exchange tube 111, so that the internal temperature of the middle heat exchange tube 111 is lower, increasing its heat exchange temperature rise, improving its heat exchange efficiency, and thus improving the heat exchange efficiency of the heat exchanger 11.

[0049] Reference Figure 5 and Figure 6 In one embodiment of the present utility model, the heat exchanger 11 further includes a water inlet pipe 113 and a water outlet pipe 114 , and at least three heat exchange pipes 111 are connected in series between the water inlet pipe 113 and the water outlet pipe 114 .

[0050] In this embodiment, the heat exchanger 11 further includes an inlet pipe 113 and an outlet pipe 114. Optionally, the specific shapes and diameters of the inlet pipe 113 and the outlet pipe 114 are not particularly limited here. At least three heat exchange tubes 111 are connected in series between the inlet pipe 113 and the outlet pipe 114, wherein the inlet pipe 113 of the most upstream heat exchange tube is connected to the inlet pipe 113, and the heat exchange tube 111 connected to the water inlet end of the outlet pipe 114 is the most downstream heat exchange tube 111. Moreover, two adjacent heat exchange tubes 111 along the upstream and downstream are connected by a connecting elbow 112, one end of the connecting elbow 112 is connected to the water outlet end of one of the heat exchange tubes 111, and the other end of the connecting elbow 112 is connected to the water inlet end of the other heat exchange tube 111. Through the above-mentioned structural setting, not only the convenience of connecting the at least three heat exchange tubes 111 during installation can be improved, but also the flow rate of cold water in the at least three heat exchange tubes 111 can be increased, thereby improving the heat exchange performance of the heat exchanger 11.

[0051] Reference Figures 7 to 9 In one embodiment of the utility model, the heat exchanger 11 also includes a plurality of fins 115 arranged along the length direction of the heat exchange tube 111 , each of the fins 115 has a heat exchange hole for at least three heat exchange tubes 111 to pass through, and the heat exchange tube 111 passes through the heat exchange hole and is connected to the fin 115 .

[0052] In this embodiment, each fin 115 has three heat exchange holes for three heat exchange tubes 111 to pass through, and the three heat exchange tubes 111 pass through the heat exchange holes corresponding to each fin 115 and are connected to each fin 115. During the combustion process of the gas water heater, when the high-temperature flue gas generated in the combustion chamber 13 flows upward, it needs to contact the multiple fins 115 before it can continue to flow upward, and cannot directly flow over the heat exchange tubes 111 to the fan assembly, thereby ensuring the heat exchange capacity of the heat exchanger 11.

[0053] Optionally, three heat exchange tubes 111 pass through the heat exchange holes corresponding to each fin 115 and are welded to each fin 115 at the heat exchange holes. By welding, the stability of the plurality of fins 115 installed on the heat exchange tubes 111 is improved.

[0054] Reference Figures 7 to 9 In one embodiment of the utility model, the fin 115 includes a first heat exchange portion 115a and a second heat exchange portion 115b, the first heat exchange portion 115a is sleeved on the periphery of the most upstream heat exchange tube, the second heat exchange portion 115b is sleeved on the periphery of other heat exchange tubes 111, and the heat exchange area of ​​the first heat exchange portion 115a is greater than the heat exchange area of ​​the second heat exchange portion 115b.

[0055] In this embodiment, each fin 115 includes a first heat exchange portion 115a and two second heat exchange portions 115b. The first heat exchange portion 115a is sleeved on the periphery of the heat exchange tube 111 located in the middle among the three heat exchange tubes 111, and the two second heat exchange tubes are respectively sleeved on the peripheries of the heat exchange tubes 111 located on both sides among the three heat exchange tubes 111. The heat exchange areas of the two second heat exchange portions 115b are the same, and the heat exchange area of ​​the first heat exchange portion 115a is larger than the heat exchange area of ​​the second heat exchange portion 115b. With such a configuration, more flue gas in the combustion chamber 13 can be gathered through the opening toward the part close to the heat exchange tube 111 located in the middle, thereby increasing the external temperature of the heat exchange tube 111 located in the middle, increasing its heat exchange temperature rise, and thus improving the heat exchange efficiency.

[0056] Reference Figures 7 to 9 In one embodiment of the utility model, at least three heat exchange tubes 111 are arranged side by side along a first direction, and the heat exchanger 11 further includes a first mounting plate 116 and a second mounting plate 117 which are arranged opposite to each other along a second direction, and the first mounting plate 116 and the second mounting plate 117 are respectively provided with mounting holes for the ends of the heat exchange tubes 111 to pass through, wherein the first direction intersects with the second direction.

[0057] In this embodiment, the number of heat exchange tubes 111 is three, and the three heat exchange tubes 111 are arranged side by side along the first direction, wherein the first direction is the thickness direction of the box body 12. With such an arrangement, the three heat exchange tubes 111 can be reasonably arranged, thereby reducing the area where the three heat exchange tubes 111 are arranged, and then reducing the volume of the heat exchanger 11. Based on the above content, the heat exchanger 11 of this embodiment also includes a first mounting plate 116 and a second mounting plate 117 arranged relatively along the second direction, wherein the second direction intersects with the first direction. Preferably, in this embodiment, the second direction is the width direction of the box body 12. The three heat exchange tubes 111 are arranged between the first mounting plate 116 and the second mounting plate 117, and one end of the three heat exchange tubes 111 is connected to the first mounting plate 116, and the other end of the three heat exchange tubes 111 is connected to the second mounting plate 117. It can be seen that the first mounting plate 116 and the second mounting plate 117 mainly play the role of installation and stability for the three heat exchange tubes 111. In order to improve the convenience of installation, in the present embodiment, the first mounting plate 116 and the second mounting plate 117 are respectively provided with mounting holes for the ends of the three heat exchange tubes 111 to pass through, and the two ends of each of the three heat exchange tubes 111 pass through the mounting holes of the first mounting plate 116 and the mounting holes of the second mounting plate 117 respectively, and are connected to the first mounting plate 116 and the second mounting plate 117, so as to fix the three heat exchange tubes 111.

[0058] Reference Figures 1 to 4In one embodiment of the utility model, the box body 12 includes a first side plate 121 and a second side plate 122 which are arranged opposite to each other along the second direction, the first mounting plate 116 is mounted on the top of the first side plate 121, and the second mounting plate 117 is mounted on the top of the second side plate 122;

[0059] The first side plate 121 has a first guide surface 131a at a position close to the heat exchanger 11, and the second side plate 122 has a second guide surface 132b at a position close to the heat exchanger 11. The first guide surface 131a and the second guide surface 132b are inclined toward the middle of the box body 12 in the flow direction of the flue gas.

[0060] In the present embodiment, the box body 12 includes a first side plate 121 and a second side plate 122 that are relatively arranged along a second direction, wherein the second direction is the width direction of the box body 12. The first mounting plate 116 is mounted on the top of the first side plate 121, and the second mounting plate 117 is mounted on the top of the second side plate 122, so as to achieve the fixation of the first mounting plate 116 and the second mounting plate 117. Optionally, the connection between the first mounting plate 116 and the first side plate 121 can be a fixed connection or a detachable connection. Similarly, the connection between the second mounting plate 117 and the first side plate 121 can also be a fixed connection or a detachable connection. In order to improve the installation stability of the first mounting plate 116 and the second mounting plate 117, in the present embodiment, the first mounting plate 116 is fixedly connected to the first side plate 121 and is integrally formed, and the second mounting plate 117 is fixedly connected to the second side plate 122 and is integrally formed.

[0061] Based on the above content, the first side plate 121 has a first guide surface 131a at a position close to the heat exchanger 11, and the second side plate 122 has a second guide surface 132b at a position close to the heat exchanger 11. The first guide surface 131a and the second guide surface 132b are inclined toward the middle of the box body 12 in the flow direction of the flue gas, so as to guide the flue gas in the combustion chamber 13 through the opening toward the position close to the upstream heat exchange tube, so that the external temperature of the upstream heat exchange tube and the heat exchange tube 111 adjacent to the upstream heat exchange tube is increased, thereby increasing the temperature rise of the upstream heat exchange tube, and further improving the heat exchange efficiency of the heat exchanger 11.

[0062] Reference Figures 1 to 4 In one embodiment of the utility model, the first side panel 121 includes a first inner panel and a first outer panel, and a first air insulation layer 14 is formed between the first inner panel and the first outer panel.

[0063] In this embodiment, the first side plate 121 is formed by a two-layer plate structure of a first inner plate and a first outer plate, wherein a portion of the first outer plate is protruded outward to form a first protrusion, and the first inner plate is covered on the inner side of the first outer plate to form a first air insulation layer 14 between the first protrusion and the first inner plate. The first air insulation layer 14 can prevent the heat inside the heat exchanger 11 from radiating outward, thereby playing a role in cooling and insulating the outer surface of the first side plate 121.

[0064] Reference Figures 1 to 4 In one embodiment of the present invention, the second side panel 122 includes a second inner panel and a second outer panel, and a second air insulation layer 15 is formed between the second inner panel and the second outer panel.

[0065] In this embodiment, the second side plate 122 is formed by a two-layer plate structure of a second inner plate and a second outer plate, wherein a portion of the second inner plate is protruded outward to form a second protrusion, and the second outer plate is covered on the outer side of the second inner plate to form a second air insulation layer 15 between the second protrusion and the second outer plate. The second air insulation layer 15 can prevent the heat inside the heat exchanger 11 from radiating outward, thereby playing a role in cooling and isolating the outer surface of the second side plate 122.

[0066] Reference Figures 1 to 4 In one embodiment of the utility model, the box body 12 also includes a third side plate 123 and a fourth side plate 124 arranged relatively to each other along the first direction, and the third side plate 123, the first mounting plate 116, the fourth side plate 124, and the second mounting plate 117 are enclosed to form a heat exchange chamber 16 for accommodating at least three heat exchange tubes 111, and the space below the heat exchange chamber 16 in the box body 12 forms the combustion chamber 13.

[0067] In this embodiment, the box body 12 further includes a third side plate 123 and a fourth side plate 124 which are arranged opposite to each other along a first direction, wherein the first direction is the thickness direction of the box body 12. The first side plate 121, the third side plate 123, the second side plate 122, and the fourth side plate 124 enclose a combustion chamber 13. The third side plate 123, the first mounting plate 116, the fourth side plate 124, and the second mounting plate 117 enclose a heat exchange chamber 16 for accommodating at least three heat exchange tubes 111, and the combustion chamber 13 is located below the heat exchange chamber 16. The high-temperature flue gas generated after the combustion of the gas and air can flow upward to the heat exchange chamber 16 through the combustion chamber 13 to heat the three heat exchange tubes 111 in the heat exchange chamber 16, thereby effectively realizing the heating function of the liquid (water) in the heat exchange tubes 111.

[0068] The utility model also proposes a water heater, which includes a heat exchange component 10. The specific structure of the heat exchange component 10 refers to the above embodiment. Since the water heater adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0069] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A heat exchange component, characterized in that: include: A heat exchanger, comprising at least three heat exchange tubes, wherein the at least three heat exchange tubes are arranged side by side and are connected, and one of the heat exchange tubes located in the middle is the most upstream heat exchange tube for water intake; as well as The box body has a combustion chamber formed inside. The combustion chamber is provided with an opening at one end facing the heat exchanger. The combustion chamber is provided with a guide structure, which is used to guide the flue gas in the combustion chamber to gather toward the position close to the most upstream heat exchange tube through the opening.

2. The heat exchange assembly according to claim 1, characterized in that: The number of the heat exchange tubes is an odd number, and the most upstream heat exchange tube is the heat exchange tube located in the middle.

3. The heat exchange assembly according to claim 1, characterized in that: The heat exchanger further comprises a water inlet pipe and a water outlet pipe, and at least three heat exchange pipes are connected in series between the water inlet pipe and the water outlet pipe.

4. The heat exchange assembly according to claim 1, characterized in that: The heat exchanger further includes a plurality of fins arranged along the length direction of the heat exchange tube, each of the fins has a heat exchange hole for at least three heat exchange tubes to pass through, and the heat exchange tubes pass through the heat exchange hole and are connected to the fins.

5. The heat exchange assembly according to claim 4, characterized in that: The fin includes a first heat exchange part and a second heat exchange part, the first heat exchange part is sleeved on the periphery of the most upstream heat exchange tube, the second heat exchange part is sleeved on the periphery of other heat exchange tubes, and the heat exchange area of ​​the first heat exchange part is larger than the heat exchange area of ​​the second heat exchange part.

6. The heat exchange assembly according to any one of claims 1 to 5, characterized in that: At least three of the heat exchange tubes are arranged side by side along a first direction, and the heat exchanger also includes a first mounting plate and a second mounting plate arranged opposite to each other along a second direction, and the first mounting plate and the second mounting plate are correspondingly provided with mounting holes for the ends of the heat exchange tubes to pass through, wherein the first direction intersects with the second direction.

7. The heat exchange assembly according to claim 6, characterized in that: The box body comprises a first side plate and a second side plate which are arranged opposite to each other along the second direction, the first mounting plate is mounted on the top of the first side plate, and the second mounting plate is mounted on the top of the second side plate; The first side plate has a first guide surface near the heat exchanger, and the second side plate has a second guide surface near the heat exchanger. The first guide surface and the second guide surface are inclined toward the middle of the box body in the flow direction of the smoke.

8. The heat exchange assembly according to claim 7, characterized in that: The first side panel comprises a first inner panel and a first outer panel, and a first air heat insulation layer is formed between the first inner panel and the first outer panel; And / or, the second side panel includes a second inner panel and a second outer panel, and a second air insulation layer is formed between the second inner panel and the second outer panel.

9. The heat exchange assembly according to claim 7, characterized in that: The box body also includes a third side plate and a fourth side plate arranged opposite to each other along the first direction, and the third side plate, the first mounting plate, the fourth side plate, and the second mounting plate together form a heat exchange chamber for accommodating at least three heat exchange tubes, and the combustion chamber is formed in the space below the heat exchange chamber in the box body.

10. A water heater, characterized in that: Comprising the heat exchange component according to any one of claims 1 to 9.

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