Heat exchanger and hot water tank

Abstract

The utility model relates to the technical field of water heaters, in particular to a heat exchanger and a hot water tank. The heat exchanger comprises a heat exchanger body, the heat exchanger body is provided with a fin set and a heat exchange water pipe connected with the fin set, the fin set is provided with a plurality of horizontally-arranged heat exchange fins, and a containing gap is formed between every two adjacent heat exchange fins. According to the utility model, the heat exchange fins are horizontally arranged, so that the phase-change material is supported, and the phenomenon that a solute is easy to precipitate and accumulate to the bottom and is separated from a solvent when the solution stands is prevented, so that the solute can be filled among the heat exchange fins, and the energy storage effect is improved; and meanwhile, the heat can be more uniformly transferred to the heat exchange water pipe through the heat exchange fins, so that the heating effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a heat exchanger and a hot water tank. Background Technique

[0002] At present, phase change materials are commonly used in hot water tanks on the market to store and release heat energy. Such devices are widely used in fields that require heat energy storage, such as water heaters. This device can absorb or release a large amount of heat when the material undergoes a phase change, achieving heat storage with a small volume and high density, and providing a constant temperature output, improving the heat energy utilization efficiency and having a significant energy-saving effect. However, the existing hot water tanks have the following problems: The commonly used phase change materials are generally hydrated salts. During the use cycle, separation occurs between the salt component and water, resulting in the salt component settling downward and the water floating upward, making the two increasingly separated and unable to redissolve and recover. An ineffective solid salt block accumulates at the bottom, reducing the amount of available phase change material, lowering the energy storage effect and affecting the heat exchange efficiency.

[0003] Therefore, it is necessary to develop a heat exchanger and a hot water tank to reduce the problem of solute precipitation and accumulation of the phase change material when it is static. Summary of the Utility Model

[0004] In view of the problem in the above-mentioned existing technology of how to reduce the poor energy storage and heating effects of the heat exchanger caused by the precipitation and accumulation of the solute of the phase change material, the technical solution adopted by the utility model to solve its technical problems is as follows:

[0005] A heat exchanger includes a heat exchanger main body, the heat exchanger main body is provided with a fin group and a heat exchange water pipe connected to the fin group. Among them, there is at least one heat exchanger main body, the fin group is provided with a plurality of horizontally arranged heat exchange fins, and there is an accommodation gap between two adjacent heat exchange fins.

[0006] Further, in the heat exchanger of the solution, the thickness of the heat exchange fin is 0.1 - 0.4 millimeters, and the interval between the heat exchange fins is 1 - 4 millimeters.

[0007] Further, in the heat exchanger of the solution, the heat exchange water pipe is provided with a water inlet connected to a water inlet joint and a water outlet connected to a water outlet joint. The heat exchange water pipe extends out of the fin group, and the water inlet and the water outlet are located on one side where the heat exchange water pipe extends out of the fin group.

[0008] Further, in the heat exchanger of the solution, the heat exchange fin is provided with a plurality of protruding connection ends, and a plurality of the heat exchange fins are connected through the connection ends. The connection end includes a first connection end, and the first connection end is provided with a first through hole. The first through holes are connected to form a plurality of heat exchange channels for the heat exchange water pipe to extend into, and the heat exchange water pipe is arranged in a meandering manner in the heat exchange channels.

[0009] Furthermore, a heat exchanger according to the solution further includes a temperature control component. The connection end further includes a second connection end. The second connection end is provided with a second through hole, and the second through hole is connected to form a plurality of heating pipes. The heating pipes are close to the heat exchange channel. The heat exchanger body is further provided with a plurality of heating sleeves located in the heating pipes. The temperature control component includes an electric heating pipe located in the heating sleeves.

[0010] Furthermore, a heat exchanger according to the solution, wherein the connection end further includes a third connection end. The third connection end is provided with a third through hole, and the third through hole is connected to form a plurality of first temperature detection pipes. The first temperature detection pipes are close to the heating pipes. The heat exchanger body is further provided with a plurality of first temperature detection sleeves located in the first temperature detection pipes. The temperature control component further includes a temperature sensing probe located in the first temperature detection sleeves.

[0011] Furthermore, a heat exchanger according to the solution, wherein the connection end further includes a fourth connection end. The fourth connection end is provided with a fourth through hole, and the fourth through hole is connected to form at least one second temperature detection pipe. The second temperature detection pipes are close to the heating pipes. The heat exchanger body is further provided with at least one second temperature detection sleeve located in the second temperature detection pipes. The temperature control component further includes a thermal breaker located in the second temperature detection sleeves.

[0012] Furthermore, a hot water tank includes a housing and a heat exchanger located inside the housing.

[0013] Furthermore, a hot water tank according to the solution, wherein the fin group is further provided with a plurality of heat exchanger support sheets that are perpendicular to the heat exchange fins and extend to both sides respectively.

[0014] Furthermore, a hot water tank according to the solution, wherein the housing is further provided with a water tank fixing bracket, a filling port and a filling port plug that are respectively communicated with the inner cavity of the housing.

[0015] The beneficial effects of the present utility model are as follows:

[0016] By horizontally arranging the heat exchange fins, the present utility model plays a supporting role for the phase change material, preventing the phenomenon that the solute is prone to precipitate and accumulate at the bottom and phase-separate from the solvent when the solution is static, enabling the solute to be filled between the heat exchange fins, improving the energy storage effect, and at the same time, the heat can be more evenly transferred to the heat exchange water pipe through the heat exchange fins, further improving the heating effect.

[0017] The present utility model will be further described below in conjunction with the drawings and specific embodiments. Description of the Drawings

[0018] Figure 1This is a schematic external view of a heat exchanger of the present utility model.

[0019] Figure 2 This is a schematic cross-sectional view of a fin group of a heat exchanger of the present utility model.

[0020] Figure 3 This is a partially enlarged schematic cross-sectional view of a fin group of a heat exchanger of the present utility model.

[0021] Figure 4 This is a partially enlarged schematic cross-sectional view of a fin group of a heat exchanger of the present utility model.

[0022] Figure 5 This is a schematic cross-sectional external view of a heat exchanger of the present utility model.

[0023] Figure 6 This is an exploded schematic external view of a hot water tank of the present utility model.

[0024] Figure 7 This is a schematic external view of a hot water tank of the present utility model. Detailed implementation manners

[0025] The following will describe in detail the implementation manners of the present utility model with reference to the accompanying drawings.

[0026] As Figures 1-5 shown, a heat exchanger includes a heat exchanger main body 2, the heat exchanger main body 2 is provided with a fin group 21 and a heat exchange water pipe 24 connected to the fin group 21. Among them, at least one heat exchanger main body 2 is provided, and the fin group 21 is provided with a plurality of horizontally arranged heat exchange fins 211, and there is an accommodation gap between two adjacent heat exchange fins 211.

[0027] By horizontally arranging the heat exchange fins 211, the present utility model plays a supporting role for the phase change material, preventing the phenomenon that the solute is prone to precipitate and accumulate at the bottom and phase-separate from the solvent when the solution is static, enabling the solute to fill between the heat exchange fins 211, improving the energy storage effect, and at the same time being able to transfer heat more evenly to the heat exchange water pipe 24 through the heat exchange fins 211, further improving the heating effect.

[0028] Specifically, in this embodiment, the phase change material is a solution. The solution mainly contains solutes that store heat through heating. At normal temperature, the solutes are insoluble in the solvent. After heating, the solutes dissolve in the solvent and store heat. In the present utility model, by horizontally arranging the heat exchange fins 211, not only is the phase change material effectively supported, preventing the precipitation and accumulation of the solution solutes at the bottom during static state and separation from the solvent, enabling the solutes to be evenly filled between the heat exchange fins 211, thus enhancing the energy storage effect; further, the horizontally arranged heat exchange fins 211 can effectively increase the contact area with the phase change material, ensuring more efficient heat transfer during the phase change process; further, through the horizontally arranged heat exchange fins 211, the heat exchange fins 211 can better contact the heat exchange water pipe 24, allowing heat to be transferred to the heat exchange water pipe 24 more evenly, avoiding the phenomenon of uneven heating of the heat exchange water pipe 24, and improving the heat conduction efficiency and the overall thermal energy utilization rate of the system; further, there is an accommodation gap between multiple heat exchange fins 211, and this setting enables the phase change material to flow better within the fin group 21, avoiding the phenomenon of blockage of the solutes within the fin group 21.

[0029] Further, as Figures 1-5 shown in a heat exchanger, wherein the thickness of the heat exchange fins 211 is 0.1 - 0.4 mm, and the interval between the heat exchange fins 211 is 1 - 4 mm.

[0030] In the present utility model, by designing the thickness of the heat exchange fins 211 to be 0.1 - 0.4 mm and setting the interval between the heat exchange fins 211 to be 1 - 4 mm, while the heat exchange fins 211 have sufficient strength, the heat exchange area and heat exchange efficiency are increased; further, this setting ensures that the heat generated by the phase change material can be transferred to the heat exchange water pipe 24 faster and more evenly through the heat exchange fins 211, effectively improving the energy storage and heat exchange effects; further, if the thickness of the heat exchange fins 211 is less than 0.1 mm, the structural strength of the heat exchange fins 211 will be insufficient, and they are prone to deformation or damage, while a thickness greater than 0.4 mm will increase the material cost and manufacturing difficulty, and the too thick heat exchange fins 211 will reduce the heat conduction efficiency; further, if the interval between the heat exchange fins 211 is less than 1 mm, the phase change material stored between the heat exchange fins 211 will be insufficient, affecting the phase change effect and thus reducing the heating efficiency of the heat exchanger, while an interval greater than 4 mm will reduce the heat exchange area between the phase change material and the fin group 21, reducing the heat exchange effect.

[0031] Further, as Figures 1-5 shown in a heat exchanger, wherein the heat exchange water pipe 24 is provided with a water inlet 22 connected to the water inlet joint and a water outlet 23 connected to the water outlet joint. The heat exchange water pipe 24 extends out of the fin group 21, and the water inlet 22 and the water outlet 23 are located on the side where the heat exchange water pipe 24 extends out of the fin group 21.

[0032] In this embodiment, there are two heat exchanger bodies 2. The water outlet 23 and the water inlet 22 of the two heat exchanger bodies are respectively connected through a water outlet joint and a water inlet joint, enabling them to be used jointly, thereby improving the overall heating efficiency of the heat exchanger. Further, by arranging the water inlet 22 and the water outlet 23 on the side where the heat exchange water pipe 24 extends out of the fin group 21, not only is the connection and installation process of the heat exchanger body 2 simplified, but also the maintenance difficulty is reduced.

[0033] Further, as Figures 1-5 shown in a heat exchanger, wherein the heat exchange fins 211 are provided with a plurality of protruding connection ends 217. A plurality of the heat exchange fins 211 are connected through the connection ends 217. The connection end 217 includes a first connection end 2171. The first connection end 2171 is provided with a first through hole 2181. The first through holes 2181 are connected to form a plurality of heat exchange channels 212 for the heat exchange water pipe 24 to extend into. The heat exchange water pipe 24 is arranged in a circuitous manner in the heat exchange channels 212.

[0034] In the present utility model, by providing a plurality of protruding connection ends 217 on the heat exchange fins 211, a plurality of heat exchange fins 211 are connected to each other through these connection ends 217. Among them, the connection end 217 includes a first connection end 2171 provided with a first through hole 2181. These first through holes 2181 are connected to form a plurality of heat exchange channels 212 for the heat exchange water pipe 24 to extend into. This setting not only enables the heat exchange water pipe 24 to be arranged in a circuitous manner in the heat exchange channels 212, so that heat can be transferred to the heat exchange water pipe 24 more efficiently through the first connection end 2171, but also increases the contact area between the heat exchange fins 211 and the phase change material, realizing more uniform and rapid heat conduction, thereby improving the heat exchange performance of the heat exchanger. Further, the heat exchange water pipe 24 is arranged in the heat exchange channels 212, further increasing the contact area with the fin group 21 and improving the heat transfer efficiency. Further, the heat exchange water pipe 24 is arranged in a circuitous manner in the heat exchange channels 212, extending the path, further increasing the contact area between the heat exchange water pipe 24 and the fin group 21, and optimizing the heat transfer efficiency.

[0035] Further, as Figures 1-5 shown in a heat exchanger, which further includes a temperature control component 25. The connection end 217 further includes a second connection end 2172. The second connection end 2172 is provided with a second through hole 2182. The second through holes 2182 are connected to form a plurality of heating pipes 213. The heating pipes 213 are close to the heat exchange channels 212. The heat exchanger body 2 is further provided with a plurality of heating sleeves 26 located in the heating pipes 213. The temperature control component 25 includes an electric heating pipe 251 located in the heating sleeve 26.

[0036] The utility model adds a temperature control component 25 in the heat exchanger, and a second through hole 2182 is provided at the second connection end 2172 to form a plurality of heating pipes 213. These heating pipes 213 are close to the heat exchange channel 212. At the same time, a heating tube sleeve 26 is arranged in the heating pipe 213, providing a more efficient way for the electric heating tube 251 to transfer heat to the heat exchange channel 212. Further, the electric heating tube 251 in the temperature control component 25 is located in the heating tube sleeve 26, ensuring the concentration and effective transfer of heat, thereby improving the heating speed and efficiency. Further, the setting that the electric heating tube 251 is close to the heat exchange channel 212 enables the water in the heat exchange channel 212 to be directly heated while heating the solution, further improving the heating efficiency.

[0037] Further, as Figures 1-5 shown in a heat exchanger, wherein the connection end 217 further includes a third connection end 2173. The third connection end 2173 is provided with a third through hole 2183, and the third through hole 2183 is connected to form a plurality of first temperature detection pipes 214. The first temperature detection pipes 214 are close to the heating pipes 213. The heat exchanger body 2 further includes a plurality of first temperature detection tube sleeves 27 located in the first temperature detection pipes 214. The temperature control component 25 further includes a temperature sensing probe 252 located in the first temperature detection tube sleeve 27.

[0038] The utility model adds a third connection end 2173 in the connection end 217 of the heat exchange fins 211, and a third through hole 2183 is provided on the third connection end 2173, and then a plurality of first temperature detection pipes 214 are connected to form. In addition, a first temperature detection tube sleeve 27 is arranged in these first temperature detection pipes 214. These first temperature detection pipes 214 are close to the heating pipes 213, so that the temperature sensing probe 252 in the temperature control component 25 can more accurately monitor the temperature of the phase change material by extending into the first temperature detection tube sleeve 27, avoiding the formation of precipitate substances due to water loss of the solution at high temperature and affecting the energy storage efficiency. Further, the temperature sensing probe 252 is arranged in the first temperature detection tube sleeve 27, so that the temperature sensing probe 252 can monitor the temperature of the phase change material in real time, ensuring that the solution is heated within the optimal temperature range, improving the safety and reliability of the heat exchanger. Further, the setting that the first temperature detection pipes 214 are close to the heating pipes 213 also enables the temperature sensing probe 252 to monitor the heating temperature of the electric heating tube 251 in real time, preventing the temperature in the heating pipe 213 from being too high and affecting the performance of the phase change material.

[0039] Further, as Figures 1-5A heat exchanger as shown, wherein the connection end 217 further includes a fourth connection end 2174, the fourth connection end 2174 is provided with a fourth through hole 2184, the fourth through hole 2184 is connected to form at least one second temperature detection pipeline 215, the second temperature detection pipeline 215 is close to the heating pipeline 213, the heat exchanger body 2 is further provided with at least one second temperature detection sleeve 28 located in the second temperature detection pipeline 215, and the temperature control component 25 further includes a thermal breaker 253 located in the second temperature detection sleeve 28.

[0040] In the present utility model, a fourth connection end 2174 is added to the connection end 217 of the heat exchange fins 211, and a fourth through hole 2184 is provided on the fourth connection end 2174, and then at least one second temperature detection pipeline 215 is connected and formed. In addition, a second temperature detection sleeve 28 is arranged in the second temperature detection pipeline 215, and the thermal breaker 253 is placed in the second temperature detection sleeve 28. This setting improves the integrity and integration of the heat exchanger; further, through the combined use of the thermal breaker 253 and the temperature sensing probe 252, the heat exchanger can cut off the power supply in time when overheated, providing reliable overheat protection and preventing the heat exchanger from being damaged or causing safety accidents due to overheating; further, the thermal breaker 253 is arranged in the second temperature detection sleeve 28, which not only simplifies the structural layout of the heat exchanger, but also reduces the complexity of external connections, making the installation and maintenance of the heat exchanger more convenient and fast.

[0041] Further, as Figures 1-7 shown, a hot water tank, which includes a housing 1 and a heat exchanger located inside the housing 1.

[0042] In the present utility model, by arranging the housing 1 outside the heat exchanger, the heat exchanger as a whole forms an independent hot water tank structure. Through this setting of the housing 1, the phase change material is effectively isolated from the external environment, preventing the influence of external factors such as temperature, humidity and dust on the performance of the heat exchanger, and ensuring the stable operation and long-term durability of the hot water tank; further, this setting also provides a space for storing the phase change material, enabling the phase change material to be in full contact with the heat exchange fins 211, ensuring that the phase change material can efficiently absorb or release heat during the phase change process, and improving the energy storage effect and heat exchange efficiency of the hot water tank.

[0043] Further, as Figures 1-7 shown, a hot water tank, wherein the fin group 21 is further provided with a plurality of heat exchanger support pieces 216 that are vertically arranged with respect to the heat exchange fins 211 and extend to both sides respectively.

[0044] The utility model can firmly fix the heat exchanger main body 2 in the housing 1 by arranging a heat exchanger support piece 216 on the fin group 21 and through the cooperation of the heat exchanger support piece 216 and the housing 1, preventing the heat exchanger main body 2 from shifting relative to the housing 1 along the direction perpendicular to the heat exchange fins 211 when subjected to external forces. This setting ensures the stability and safety of the heat exchanger, and can maintain the working position of the heat exchanger main body 2 even when the device is vibrating or impacted during operation; further, the setting of the heat exchanger support piece 216 creates a space between the heat exchange fins 211 and the housing 1. This setting not only effectively avoids the heat conduction loss caused by the direct contact between the heat exchange fins 211 and the housing 1, but also provides sufficient installation space for the heat exchange water pipe 24, the temperature control component 25 and the joints.

[0045] Further, as Figures 1-7 shown in a hot water tank, wherein the housing 1 is further provided with a water tank fixing bracket 12, a filling port 11 and a filling port plug 14 which are respectively communicated with the inner cavity of the housing 1.

[0046] In the utility model, the filling port 11 is arranged on the side of the housing 1 and is perpendicular to the heat exchange fins 211. This setting enables the phase change material to flow along the direction of the heat exchange fins 211 when filling the phase change material, ensuring that the phase change material can better fill between the heat exchange fins 211, which not only facilitates the addition of the phase change material, but also optimizes the energy storage effect and the heat conduction efficiency; further, in this embodiment, there are two filling ports 11. This setting enables one filling port 11 to be used for injecting the phase change material and the other for exhausting air, ensuring the smoothness of the filling process, avoiding the formation of air bubbles, and ensuring the uniform distribution of the phase change material and its full contact with the heat exchange fins 211; further, the setting of the plug 14 ensures that after the phase change material is filled, the filling port 11 can be normally sealed to prevent the leakage of the phase change material.

[0047] Further, as Figures 1-7 shown in a hot water tank, wherein the temperature control component 25, the water inlet 22 and the water outlet 23 are located on the same side, and a fixing hole 13 is further provided on the housing 1 on the side of the temperature control component 25. The fixing hole 13 cooperates with the heating pipe sleeve 26, the first temperature detecting pipe sleeve 27, the second temperature detecting pipeline 215, the water inlet 22 and the water outlet 23 to fix the relative positions of the housing 1 and the heat exchanger main body 2.

[0048] In the present utility model, the temperature control component 25, the water inlet 22, and the water outlet 23 are arranged on the same side, and fixing holes 13 are arranged on one side of the housing 1 to fix the heating tube sleeve 26, the first temperature detection tube sleeve 27, the second temperature detection pipeline 215, the water inlet 22, and the water outlet 23. This arrangement further ensures the relative positions of the housing 1 and the heat exchanger main body 2, preventing the heat exchanger main body 2 from shifting or loosening along the direction of the heat exchange fins 211 during use, and ensuring the reliability and stability of the hot water tank. Further, the arrangement that the temperature control component 25, the water inlet 22, and the water outlet 23 are located on the same side not only makes the connection of pipelines and circuits more concise, but also makes the installation and maintenance of the hot water tank more convenient, improving the operation convenience.

[0049] As Figures 1-7 shown, the implementation mode of this embodiment is as follows:

[0050] Embodiment 1:

[0051] The heat exchanger includes a heat exchanger main body 2. The heat exchanger main body 2 is provided with a fin group 21. On the fin group 21, not only horizontally arranged heat exchange fins 211 are installed, but also a first temperature detection pipeline 214, a second temperature detection pipeline 215, a heating pipeline 213, and a heat exchange channel 212 are provided. There is a coiled heat exchange water pipe 24 in the heat exchange channel 212, which is used for passing water and contacting with the phase change material to heat the water in the pipeline. The heat exchange water pipe 24 is provided with a water inlet 22 and a water outlet 23 for water inlet and outlet. The heating pipeline 213 is embedded with a heating tube sleeve 26, and the heating tube sleeve 26 is internally provided with an electric heating tube 251 for heating the phase change material. The first temperature detection pipeline 214 is close to the heating pipeline 213 and is internally embedded with a first temperature detection tube sleeve 27. The first temperature detection tube sleeve 27 is internally provided with a temperature sensing probe 252 for real-time monitoring of the temperature of the electric heating tube 251 and the surrounding phase change material. The second temperature detection pipeline 215 is also close to the heating pipeline 213 and is internally embedded with a second temperature detection tube sleeve 28. The second temperature detection tube sleeve 28 is internally provided with a thermal circuit breaker 253 for detecting the temperature of the electric heating tube 251 and the phase change material, providing power-off protection when the temperature is too high, and serving as an insurance measure when the temperature sensing probe 252 fails.

[0052] Embodiment 2:

[0053] The phase change material in this embodiment is sodium acetate trihydrate. This material is in a solid state below 58°C, melts above 58°C and forms a saturated solution with the solvent, and water and salt separation will occur above 120°C, affecting the energy storage efficiency.

[0054] The heat exchanger body 2 in this embodiment has the same features as those in the first embodiment. In this embodiment, there are two heat exchanger bodies 2, and the water inlets 22 of the two heat exchanger bodies 2 are respectively connected through a water inlet joint, and the water outlets 23 of the two heat exchanger bodies 2 are connected through a water outlet joint, so that the two heat exchanger bodies 2 are connected together. In addition, this embodiment further includes a housing 1 installed outside the two heat exchanger bodies 2. The two heat exchanger bodies 2 and the housing 1 together form a hot water tank, and the tank can be used to store sodium acetate trihydrate. The housing 1 is provided with a filling port 11 and a filling port plug 14, which are convenient for the addition and sealing of sodium acetate trihydrate. There are two filling ports 11 and two filling port plugs 14 respectively. One is for filling, and the other is for venting to ensure the smoothness of the filling process.

[0055] In addition, a heat exchanger support piece 216 is provided in the fin group 21, which is used to enhance the overall stability of the heat exchanger and provide sufficient installation space for components such as the heat exchange water pipe 24 and the temperature control assembly 25. The relative positions of the heat exchanger body 2 and the housing 1 are fixed by the cooperation of the heat exchanger support piece 216 and the housing 1, and through the cooperation of the fixing holes 13 with the heating tube sleeve 26, the first temperature probe sleeve 27, the second temperature probe sleeve 28, the water inlet 22 and the water outlet 23.

[0056] Furthermore, in this embodiment, the thickness of the heat exchange fin 211 is 0.1 mm, the fin interval is 1 mm, and the sodium acetate trihydrate is filled between the heat exchange fins 211.

[0057] In practical applications, users can heat the water tank during their spare time to control the temperature of the sodium acetate trihydrate at about 75 °C. At this time, the sodium acetate trihydrate forms a saturated solution with the solvent and stores heat. When the user needs hot water, by introducing water into the heat exchange water pipe 24, the sodium acetate trihydrate transfers heat to the passing water through the heat exchange fins 211 and the heat exchange water pipe 24. During this process, the water temperature at the water outlet 23 can reach about 70 °C. When the thermal breaker 253 detects that the temperature in the water tank exceeds 95 °C, it proves that the temperature sensing probe 252 fails and cannot control the temperature. At this time, the thermal breaker 253 will cut off the power supply to prevent the electric heating tube 251 from continuing to heat.

[0058] Embodiment Three:

[0059] This embodiment is basically the same as Embodiment Two, except that in this embodiment, the thickness of the heat exchange fin 211 is 0.4 mm, and the interval between the heat exchange fins 211 is 4 mm.

[0060] Embodiment Four:

[0061] This embodiment is basically the same as Embodiment Two, except that in this embodiment, the thickness of the heat exchange fin 211 is 0.3 mm, and the interval between the heat exchange fins 211 is 3 mm.

[0062] The above only further illustrates the technical content of the present utility model by way of embodiments to facilitate easier understanding by readers, but it does not mean that the implementation manners of the present utility model are limited thereto. Any technical extension or re-creation made according to the present utility model is protected by the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. A heat exchanger, comprising a heat exchanger body (2), wherein the heat exchanger body (2) is provided with a fin group (21) and a heat exchange water pipe (24) connected to the fin group (21), characterized in that: The heat exchanger body (2) is provided with at least one, and the fin group (21) is provided with a plurality of horizontally arranged heat exchange fins (211), with an accommodation gap between two adjacent heat exchange fins (211).

2. A heat exchanger according to claim 1, characterized in that: The thickness of the heat exchange fins (211) is 0.1-0.4 millimeters, and the interval between the heat exchange fins (211) is 1-4 millimeters.

3. A heat exchanger according to claim 1, characterized in that: The hot water exchange pipe (24) is provided with a water inlet (22) connected to the water inlet joint and a water outlet (23) connected to the water outlet joint. The hot water exchange pipe (24) extends out of the fin group (21). The water inlet (22) and the water outlet (23) are located on a side of the hot water exchange pipe (24) extending out of the fin group (21).

4. A heat exchanger according to claim 1, characterized in that: The heat exchange fin (211) is provided with a plurality of protruding connection ends (217), and the plurality of heat exchange fins (211) are connected via the connection ends (217). The connection ends (217) include a first connection end (2171), and the first connection end (2171) is provided with a first through hole (2181). The first through holes (2181) are connected to form a plurality of heat exchange channels (212) for the heat exchange water pipe (24) to extend into, and the heat exchange water pipe (24) is arranged in a circuitous manner in the heat exchange channel (212).

5. A heat exchanger according to claim 4, characterized in that: It also includes a temperature control component (25), the connection end (217) further including a second connection end (2172), the second connection end (2172) being provided with a second through hole (2182), the second through holes (2182) being connected to form a plurality of heating pipes (213), the heating pipes (213) being close to the heat exchange channel (212), the heat exchanger body (2) being further provided with a plurality of heating pipe sleeves (26) located in the heating pipes (213), and the temperature control component (25) including an electric heating pipe (251) located in the heating pipe sleeve (26).

6. A heat exchanger according to claim 5, characterized in that: The connection end (217) further includes a third connection end (2173), the third connection end (2173) is provided with a third through hole (2183), the third through holes (2183) are connected to form a plurality of first temperature detection pipes (214), the first temperature detection pipes (214) are close to the heating pipe (213), the heat exchanger body (2) is further provided with a plurality of first temperature detection pipe sleeves (27) located in the first temperature detection pipes (214), and the temperature control component (25) further includes a temperature sensing probe (252) located in the first temperature detection pipe sleeve (27).

7. A heat exchanger according to claim 5, characterized in that: The connecting end (217) further comprises a fourth connecting end (2174), the fourth connecting end (2174) being provided with a fourth through hole (2184), the fourth through hole (2184) being connected to form at least one second temperature detection pipe (215), the second temperature detection pipe (215) being close to the heating pipe (213), the heat exchanger body (2) further comprising at least one second temperature detection pipe sleeve (28) located in the second temperature detection pipe (215), and the temperature control component (25) further comprising a thermal circuit breaker (253) located in the second temperature detection pipe sleeve (28).

8. A hot water tank, characterized in that: The invention comprises a shell (1) and a heat exchanger as claimed in any one of claims 1 to 7 located inside the shell (1).

9. A hot water tank according to claim 8, characterized in that: The fin group (21) is further provided with a plurality of heat exchanger support fins (216) which are arranged perpendicularly to the heat exchange fins (211) and extend to both sides respectively.

10. A hot water tank according to claim 8, characterized in that: The housing (1) is further provided with a water tank fixing bracket (12), a filling port (11) and a filling port plugging cover (14) respectively connected to the inner cavity of the housing (1).

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