Heating stove

Abstract

The utility model relates to the technical field of heating equipment, and discloses a heating stove which comprises a water storage tank, a heating device and a heating device. The smoke exhaust pipe is communicated with the combustion chamber, and at least part of the smoke exhaust pipe is located in the containing cavity; and the spoiler is arranged in the smoke exhaust pipe and is used for reducing the flowing speed of airflow in the smoke exhaust pipe. Due to the fact that the spoiler is arranged in the smoke exhaust pipe, the flowing speed of high-temperature smoke in the smoke exhaust pipe can be reduced, the standing time of the high-temperature smoke in the smoke exhaust pipe is prolonged, the heat exchange time of the high-temperature smoke and water flow in the containing cavity is prolonged, and the energy utilization rate and the heat exchange efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment technology, and in particular to a heating furnace. Background Technology

[0002] A boiler is a heating device that transfers the heat generated by burning fuel to a heat exchange medium such as water. It typically includes a combustion chamber and an exhaust pipe connected to the combustion chamber. To ensure efficient heat exchange between the two, the boiler's water storage tank is usually directly wrapped around the outside of the exhaust pipe, using the high-temperature flue gas to heat the exhaust pipe and thus the cold water inside the storage tank.

[0003] However, since the exhaust outlet of common flue pipes is designed at the top of the heating boiler, the high-temperature flue gas in the exhaust pipe usually flows smoothly out of the exhaust outlet. As a result, the contact time between the high-temperature flue gas and the water storage tank is shortened, the heat exchange efficiency of the heating boiler is reduced, and the heat of the high-temperature flue gas cannot be fully utilized. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a heating stove that effectively solves the problem of low utilization rate of heat carried by high-temperature flue gas in existing heating stoves.

[0005] The above-mentioned technical problems are solved by the following technical solutions:

[0006] A heating furnace includes: a water storage tank with an internal cavity for storing water; a combustion chamber and a flue pipe connected to the combustion chamber, at least a portion of the flue pipe being located within the cavity; and a baffle element disposed within the flue pipe for reducing the airflow velocity within the flue pipe.

[0007] Compared with the prior art, the heating furnace described in this utility model has the following beneficial effects:

[0008] Compared to existing heating boilers, this invention enhances the internal structure of the flue pipe by incorporating flow-deflecting components. These new internal structures alter the original flow path of the high-temperature flue gas and increase its flow resistance, effectively improving the flue pipe's smoke retention capacity. This allows the high-temperature flue gas to remain within the pipe for a longer period, extending the heat exchange time between the flue gas and the water in the containment chamber, thus maximizing the utilization of the heat carried by the flue gas. Furthermore, the increased utilization rate of the heat carried by the high-temperature flue gas offers the following advantages: firstly, the water temperature in the storage tank can reach the preset temperature more quickly, thus meeting the user's water needs more rapidly; secondly, it reduces fuel consumption, achieving energy conservation and lowering operating costs.

[0009] In one embodiment, the baffle includes a mounting portion and a baffle portion mounted on the mounting portion. The mounting portion passes through the exhaust pipe. The mounting portion is provided with a limiting portion, and the exhaust pipe is provided with a limiting mating portion. The limiting portion and the limiting mating portion are detachably engaged.

[0010] In one embodiment, the limiting portion is located at the end of the mounting portion away from the combustion chamber, and the limiting portion is symmetrically distributed around the central axis of the mounting portion.

[0011] In one embodiment, the limiting fit portion is formed on the inner wall of the exhaust pipe, and the limiting fit portion is interference-fitted with the inner wall of the exhaust pipe; or, the top of the end of the exhaust pipe away from the combustion chamber is provided with an overlapping surface, the overlapping surface forms the limiting fit portion, and the limiting fit portion overlaps on the overlapping surface.

[0012] In one embodiment, there are multiple baffles, and the multiple baffles are spaced apart on the mounting portion along the axial direction of the exhaust pipe.

[0013] In one embodiment, the baffle is in the form of a sheet, and at least two baffles are grouped together. The baffles in the same group are located on the same side of the mounting part. Along the axial direction of the exhaust pipe, each pair of adjacent baffles are spaced apart on the mounting part and located on opposite sides of the mounting part.

[0014] In one embodiment, the turbulence-disrupting part is clearance-fitted with the inner wall of the flue pipe, and the edge of the turbulence-disrupting part defines a flue gas bypass channel between the inner wall of the flue pipe; the mounting part is provided with a plurality of guiding holes, at least one of the guiding holes is located between two adjacent groups of turbulence-disrupting parts, and the interval between two adjacent groups of turbulence-disrupting parts, together with the guiding holes and the inner wall of the flue pipe, defines a heat exchange main channel; the same group of turbulence-disrupting parts forms a flue gas retention space, and the flue gas retention space is connected to the flue gas bypass channel and the heat exchange main channel respectively.

[0015] In one embodiment, the flow area of ​​the flue gas bypass channel is smaller than the flow area of ​​the heat exchange main channel.

[0016] In one embodiment, the turbulence portion is spirally coiled around the outer surface of the mounting portion and extends from one end of the exhaust pipe to the other end along the axial direction of the exhaust pipe.

[0017] In one embodiment, the system further includes a burner and a fan, one end of which is connected to the combustion chamber, and the fan is connected to the burner via an air supply pipe, the two ends of which are detachably connected to the fan and the burner, respectively. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a heating stove according to an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 The diagram shows a structural schematic of the heating furnace from another perspective.

[0021] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure from the perspective of the Chinese AA (Anti-Analog Devices).

[0022] Figure 4 for Figure 3 The diagram shows the structure of the aerodynamic spoiler.

[0023] Figure 5 for Figure 3 The enlarged view of point B shown;

[0024] Figure 6 This is a schematic diagram of the assembly of a baffle and a smoke exhaust pipe according to an embodiment of the present utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Water storage tank; 101. Receiving cavity; 2. Combustion chamber; 3. Exhaust pipe; 4. Baffle; 401. Mounting part; 4011. Guide hole; 402. Baffle; 5. Limiting part; 6. Main heat exchange channel; 7. Flue gas retention space; 8. Burner; 9. Fan; 10. Air supply pipe. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In view of the problem that existing heating furnaces have low utilization rate of the heat carried by high-temperature flue gas, this utility model provides a heating furnace.

[0031] The following is combined with Figures 1 to 6 The following describes embodiments of the present invention.

[0032] According to an embodiment of the present invention, a heating stove is provided, such as... Figures 1 to 3 As shown, it includes: a water storage tank 1, a combustion chamber 2, a flue pipe 3, and a baffle 4. It should be noted that the heating furnace in this embodiment can be, but is not limited to, a methanol heating furnace and a gas heating furnace; therefore, this embodiment of the present invention does not specifically limit its application.

[0033] Specifically, the water storage tank 1 has an internal cavity 101 for storing water; a combustion chamber 2 and a flue pipe 3 connected to the combustion chamber 2, with at least a portion of the flue pipe 3 located within the cavity 101; and a baffle 4 is detachably disposed within the flue pipe 3 and is used to reduce the airflow velocity within the flue pipe 3.

[0034] Compared to existing heating boilers, this embodiment enhances the internal structure of the exhaust pipe 3 by incorporating a baffle 4 inside the exhaust pipe 3. This new internal structure not only alters the original flow path of the high-temperature flue gas within the exhaust pipe 3 but also increases its flow resistance. This effectively improves the flue gas retention capacity of the exhaust pipe 3, allowing the high-temperature flue gas to remain within it for a longer period and extending the heat exchange time between the high-temperature flue gas and the water in the receiving cavity 101. This results in more efficient utilization of the heat carried by the high-temperature flue gas. Furthermore, the increased utilization rate of the heat carried by the high-temperature flue gas offers the following advantages: firstly, the water temperature in the storage tank 1 can reach the preset temperature value in a shorter time, thus meeting the user's water needs more quickly; secondly, it reduces fuel consumption, achieving energy saving and cost reduction.

[0035] Connecting the baffle 4 to the exhaust pipe 3 means that the baffle 4 can always remain near its set position during use, continuously reducing the airflow velocity. Specifically, when the baffle 4 is connected to the exhaust pipe 3, it will not easily deviate from its original position due to external interference, thus preventing obstruction of exhaust from the exhaust pipe 3; at the same time, it will not accidentally slip down the exhaust pipe 3 into the combustion chamber 2, effectively ensuring the stable operation of the heating boiler and the safety of exhaust. Furthermore, the baffle 4 is detachably connected to the exhaust pipe 3, facilitating easy and quick disassembly for cleaning, repair, or replacement, reducing maintenance difficulty and cost.

[0036] It is understandable that a large amount of heat is generated in combustion chamber 2 when fuel is burned. Therefore, if this heat is also used to heat the water in storage tank 1, it can not only increase the rate of water temperature rise, but also further improve the heat utilization rate, achieving energy saving and cost reduction.

[0037] For example, such as Figure 3 As shown, the combustion chamber 2 is located within the receiving cavity 101 of the water storage tank 1, and the fuel inlet of the fuel chamber is connected to the side wall of the water storage tank 1. Compared to placing the combustion chamber 2 outside the water storage tank 1, placing it within the receiving cavity 101 allows the water in the receiving cavity 101 to directly exchange heat with the heat inside the combustion chamber 2 through the side wall of the combustion chamber 2. Simultaneously, it prevents heat from dissipating from the combustion chamber 2 into the external environment, ensuring heat exchange efficiency and heat utilization, and reducing heat waste. Furthermore, placing the combustion chamber 2 within the receiving cavity 101 allows for a more compact overall structure of the heating boiler, reducing space occupation.

[0038] In one embodiment, such as Figures 3 to 6As shown, the turbulence-disrupting component 4 includes a mounting part 401 and a turbulence-disrupting part 402 mounted on the mounting part 401. The mounting part 401 passes through the exhaust pipe 3. The mounting part 401 is provided with a limiting part 5, and the exhaust pipe 3 is provided with a limiting fitting part. The limiting part 5 and the limiting fitting part are detachably fitted together.

[0039] To solve this problem, in this embodiment, the turbulence-reducing part 402 is provided in the mounting part 401. The turbulence-reducing part 402 can be arranged in a designated position in the exhaust pipe 3 by means of the mounting part 401, which solves the problem that it is difficult to install the turbulence-reducing part 402 due to the limited space in the exhaust pipe 3, thereby ensuring that the turbulence-reducing part 4 can smoothly play its role in reducing the airflow speed in the exhaust pipe 3.

[0040] Furthermore, with the cooperation of the limiting part 5 and the limiting mating part, not only can the mounting part 401 be stably placed inside the exhaust pipe 3, but the turbulence-disrupting part 402 installed on the mounting part 401 can also be precisely placed at a specific position inside the exhaust pipe 3, and always efficiently turbulently operates the high-temperature flue gas in the exhaust pipe 3. In this way, the airflow can be reasonably slowed down along a preset path, which not only prolongs the heat exchange time of the high-temperature flue gas, but also prevents the exhaust pipe 3 from being obstructed, ensuring the smooth operation and efficient heat exchange of the exhaust pipe 3.

[0041] Furthermore, the limiting part 5 and the limiting mating part are detachably connected, which makes it easy and quick to remove the turbulence component 4 from the exhaust pipe 3 for cleaning, repair or replacement, reducing maintenance difficulty and cost.

[0042] The limiting part 5 and the limiting mating part can be detachably connected through methods such as abutment, overlap, magnetic connection, snap-fit ​​connection, and bolt connection. No special limitations are imposed on the embodiments of this utility model here. It should also be noted that the limiting mating part in this embodiment can be a relatively independent part compared to the exhaust pipe, or the limiting mating part can be formed by a portion of the exhaust pipe structure. No special explanation is given on the embodiments of this utility model here.

[0043] It should be noted that in this embodiment, the mounting part 401 and the deflector part 402 can be integrally formed, or they can be connected by welding or a detachable connection. Compared with welding and detachable connections, integrally forming the mounting part 401 and the deflector part 402 can not only reduce the operation process, but also ensure the connection strength between the mounting part 401 and the deflector part 402, preventing the deflector part 402 from falling off the mounting part 401 under the impact of airflow.

[0044] In one embodiment, such as Figure 4 and Figure 5As shown, the limiting part 5 is located at the end of the mounting part 401 furthest from the combustion chamber 2, and the limiting part 5 is symmetrically distributed around the central axis of the mounting part 401. It is understandable that the temperature is higher closer to the combustion chamber 2. When the limiting part 5 is positioned at the end of the mounting part 401 near the combustion chamber 2, the limiting part 5 will be in a relatively high-temperature environment. Over time, the limiting part 5 is prone to deformation under high temperatures, thus losing its limiting function for the mounting part 401, causing the mounting part 401 to tilt within the exhaust pipe 3 or fall directly from the exhaust pipe 3 into the combustion chamber 2. Normally, to solve this problem, a high-temperature resistant material needs to be used to manufacture the limiting part 5. However, as the high-temperature resistance of the limiting part 5 increases, its corresponding production cost also increases. Therefore, while this method can solve the problem of the limiting part 5 easily deforming under high temperatures, it also introduces new problems.

[0045] In contrast, in this embodiment, the limiting part 5 is installed at the end of the mounting part 401 furthest from the combustion chamber 2, increasing the distance between the limiting part 5 and the high-temperature area. This reduces the requirements for the high-temperature resistance of the limiting part 5 material and also reduces the possibility of deformation due to excessively high ambient temperatures. Furthermore, the location of the limiting part 5 at the end of the mounting part 401 furthest from the combustion chamber 2 offers advantages in practical operation. When the operator needs to assemble the limiting part 5 to the limiting mating part, the combustion chamber 2 will not interfere with the operation, allowing the operator to complete the assembly work more conveniently and smoothly, thus improving assembly efficiency. Similarly, similar effects are achieved when limiting the limiting part 5, which will not be elaborated further.

[0046] In addition, in this embodiment, the limiting part 5 is symmetrically arranged along the central axis of the mounting part 401, which enables the mounting part 401 to be evenly stressed in the exhaust pipe 3, and avoids the mounting part 401 from tilting or shifting due to uneven stress.

[0047] Of course, the above embodiment is only one of the preferred embodiments of this utility model. When there are enough limiting parts, the limiting parts can also adopt an asymmetrical distribution structure, as long as the mounting part 401 can be stably supported in the exhaust pipe.

[0048] In one embodiment, a limiting fit portion is formed on the inner wall of the exhaust pipe 3, and the limiting portion 5 is interference-fitted with the inner wall of the exhaust pipe 3; or, the top of the end of the exhaust pipe 3 away from the combustion chamber 2 is provided with an overlapping surface, the overlapping surface forming a limiting fit portion, and the limiting portion 5 overlapping the overlapping surface. In this embodiment, the number of limiting portions 5 provided on the mounting portion 401 can be one or more. The following describes the case where the limiting portion 5 is interference-fitted with the inner wall of the exhaust pipe 3: When the limiting portion 5 is interference-fitted with the inner wall of the exhaust pipe 3, if there is only one limiting portion 5, the radial dimension of the limiting portion 5 along the exhaust pipe 3 needs to be slightly larger than the diameter of the exhaust pipe 3; if there are multiple limiting portions 5, the radial dimension of each limiting portion 5 along the exhaust pipe 3 needs to be slightly larger than the radius of the exhaust pipe 3.

[0049] It is understandable that when the top of the end of the exhaust pipe 3 furthest from the combustion chamber 2 has an overlapping surface, the number of overlapping surfaces can be one or more. In one example, there is one overlapping surface with a circular shape, which is coaxial with the exhaust pipe 3 and fixed to the inner wall of the exhaust pipe 3. In addition, to avoid interference with the baffle 402, the overlapping surface is also provided with a notch to facilitate the entry and exit of the baffle 402. In another example, there is a pair of overlapping surfaces, which are arranged opposite each other on the inner wall of the exhaust pipe 3, and a gap is left between the two overlapping surfaces near one end, through which the baffle 402 can enter and exit the exhaust pipe 3. In yet another example, such as Figure 6 As shown, the end wall of the top port of the exhaust pipe 3 forms an overlapping surface; one end of the mounting part 401 extends out of the top port of the exhaust pipe 3 and a pair of opposing limiting parts 5 are provided at this end of the mounting part 401, and the ends of the pair of limiting parts 5 away from the mounting part 401 overlap the overlapping surface of the top port of the exhaust pipe 3.

[0050] In one embodiment, such as Figures 3 to 6 As shown, there are multiple turbulence-disrupting parts 402, which are spaced apart on the mounting part 401 along the axial direction of the exhaust pipe 3. By spaced apart multiple turbulence-disrupting parts 402 along the axial direction inside the exhaust pipe 3, the high-temperature flue gas velocity can be repeatedly disturbed, ensuring the consistency of the high-temperature flue gas velocity at different locations within the exhaust pipe 3. This effectively avoids excessively high temperatures in localized areas of the exhaust pipe 3, ensuring the reliability and safety of equipment operation.

[0051] In one embodiment, such as Figure 4As shown, the baffle 402 has a sheet-like structure, with at least two baffles 402 forming a group. The baffles 402 in the same group are located on the same side of the mounting part 401. Each pair of adjacent baffles 402 are spaced apart along the axis of the exhaust pipe 3 on the mounting part 401 and are located on opposite sides of the mounting part 401. It can be understood that when the high-temperature flue gas flows to one side of the mounting part 401, the baffle 402 located at the top in the same group will prevent the high-temperature flue gas from continuing to move upward. At this time, the high-temperature flue gas will form a flue gas retention space 7 between the two baffles 402 in the same group. The high-temperature flue gas located in the flue gas retention space 7 can transfer more of its own heat to the water in the receiving cavity 101. Furthermore, by arranging two adjacent sets of turbulence sections 402 at intervals along the axial direction of the exhaust pipe 3 on opposite sides of the mounting section 401, the high-temperature flue gas can form a "Z"-shaped flow path within the exhaust pipe 3. Compared to a straight airflow channel, the "Z"-shaped flow path can extend the residence time of the high-temperature flue gas within the exhaust pipe 3, allowing the high-temperature flue gas to have more opportunities to exchange heat with the pipe wall of the exhaust pipe 3 and the water in the receiving cavity 101. This can effectively improve the heat utilization rate and reduce energy waste.

[0052] In one embodiment, the turbulence portion 402 is spirally wound around the outer surface of the mounting portion 401 and extends from one end of the exhaust pipe 3 to the other end along the axial direction of the exhaust pipe 3.

[0053] When there is only one spoiler 402, the spoiler 402 extends from one end of the mounting portion 401 to the other end. At the same time, one side of the spoiler 402 in the length direction is fixed to the surface of the mounting portion 401, and the other side of the spoiler 402 in the length direction extends away from the mounting portion 401. Meanwhile, the position where one side of the spoiler 402 in the length direction is connected to the surface of the mounting portion 401 extends from one end to the other end, so that the entire spoiler 402 forms a spiral around the spoiler 402.

[0054] When there are multiple flow-dispersing parts 402, one end of each flow-dispersing part 402 is connected to the other end of the mounting part 401 in a spiral shape, and the other end of each flow-dispersing part 402 extends away from the mounting part 401, so that the multiple flow-dispersing parts 402 are distributed in a spiral shape around the mounting part 401.

[0055] Compared to a straight airflow channel, this embodiment, with the cooperation of the turbulence part 402, the mounting part 401, and the inner wall of the exhaust pipe 3, can form a spiral upward channel for high-temperature flue gas in the exhaust pipe 3. In this way, not only can the flow velocity of the high-temperature flue gas in the exhaust pipe 3 be reduced, but its flow path in the exhaust pipe 3 can also be extended, so that the high-temperature flue gas has more contact time and area with the water in the receiving cavity 101, promoting full heat exchange and transfer, and improving heat utilization efficiency.

[0056] In one embodiment, such as Figures 3 to 5 As shown, the turbulence section 402 is clearance-fitted with the inner wall of the exhaust pipe 3, and the edge of the turbulence section 402 defines a flue gas bypass channel between the inner wall of the exhaust pipe 3. The mounting section 401 is provided with multiple guide holes 4011, at least one of which is located between two adjacent sets of turbulence sections 402. The interval between the two adjacent sets of turbulence sections 402, together with the guide holes 4011 and the inner wall of the exhaust pipe 3, defines the main heat exchange channel 6. Flue gas retention spaces 7 are formed between the turbulence sections 402 in the same set, and these spaces are connected to both the flue gas bypass channel and the main heat exchange channel 6. The existence of the flue gas bypass channel provides an additional flow path for the high-temperature flue gas, allowing some of the high-temperature flue gas to be quickly discharged along the bypass channel, preventing excessive pressure buildup within the exhaust pipe 3, ensuring smooth exhaust, and reducing exhaust obstruction caused by airflow blockage. In the main heat exchange channel 6, the flow path of the high-temperature flue gas is effectively extended by the baffle 402 and the mounting part 401. This allows for more time for heat exchange between the high-temperature flue gas and the water in the receiving cavity 101, thus effectively improving heat exchange efficiency. Secondly, when the high-temperature flue gas reaches the flue gas retention space 7, it is blocked by the baffle 402, causing it to remain in the retention space 7 for a certain period. This allows more heat from the high-temperature flue gas to be transferred to the water in the receiving cavity 101, further improving heat exchange efficiency.

[0057] In one embodiment, the flow area of ​​the flue gas bypass channel is smaller than the flow area of ​​the heat exchange main channel 6. Since the flow direction of the high-temperature flue gas in the flue gas bypass channel is consistent with the axis of the exhaust pipe 3, if the flow area of ​​the flue gas bypass channel is larger than the flow area of ​​the heat exchange main channel 6, most of the high-temperature flue gas in the exhaust pipe 3 will flow directly out along the axis of the exhaust pipe 3. At this time, the turbulence-reducing element 4 cannot effectively reduce the speed of the high-temperature flue gas. In other words, the high-temperature flue gas will not stay in the exhaust pipe 3 for a long time, and the water in the containment cavity 101 cannot fully exchange heat with the high-temperature flue gas, so the heat exchange efficiency of the heating boiler cannot be improved well.

[0058] It should be explained that the flow area here refers to the average flow area of ​​the flow channel, that is, the average flow area of ​​the flue gas bypass flow channel is less than the average flow area of ​​the heat exchange main flow channel 6. Under the above premise, in one embodiment, in the length direction of the flow channel, the flow area of ​​the flue gas bypass flow channel on each cross-section can be less than the average flow area of ​​the heat exchange main flow channel on each corresponding cross-section; in another embodiment, in the length direction of the flow channel, the flow area of ​​the flue gas bypass flow channel on a certain cross-section can also be greater than the flow area of ​​the heat exchange main flow channel on the corresponding cross-section. The embodiments of this utility model are not particularly limited here.

[0059] In one embodiment, such as Figure 1 and Figure 2 As shown, the system also includes a burner 8 and a fan 9. One end of the burner 8 is connected to the combustion chamber 2, and the fan 9 is connected to the burner 8 via an air supply duct 10. Both ends of the air supply duct 10 are detachably connected to the fan 9 and the burner 8, respectively. Since the fan 9 is a component that requires frequent replacement, directly connecting the fan 9 to the burner 8 would easily damage the connection points after repeated replacements. Connecting the fan 9 to the burner 8 via the air supply duct 10 effectively avoids damage to the burner 8 connection points caused by frequent fan 9 replacements. Furthermore, even if the structure of the air supply duct 10 is damaged, the subsequent repair or replacement cost of the air supply duct 10 is lower than repairing or replacing the burner 8. In addition, the shape of the air supply duct 10 can be flexibly designed according to actual needs, allowing the fan 9 to be placed in a location convenient for disassembly and assembly.

[0060] Furthermore, to improve the sealing performance at the connection between the air supply duct 10 and the fan 9 and burner 8, a sealing ring can be installed at the connection between the air supply duct 10 and the fan 9 and burner 8. In addition, since the sealing ring is generally made of silicone or rubber, it can also absorb the vibration of the fan 9 during operation, thereby preventing the vibration from being transmitted to other areas through the air supply duct 10 and affecting the equipment or structure in other areas.

[0061] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0062] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A heating stove, characterized in that: include: A water storage tank (1) has an internal cavity (101) for storing water. Combustion chamber (2) and exhaust pipe (3) connected to combustion chamber (2), at least part of exhaust pipe (3) is located in the receiving cavity (101); A baffle (4) is disposed inside the exhaust pipe (3) and is used to reduce the airflow velocity inside the exhaust pipe (3).

2. The heating furnace according to claim 1, characterized in that: The baffle (4) includes a mounting part (401) and a baffle part (402) connected to the mounting part (401). The mounting part (401) is inserted into the exhaust pipe (3). The mounting part (401) is provided with a limiting part (5). The exhaust pipe (3) is provided with a limiting fitting part. The limiting part (5) and the limiting fitting part are detachably fitted.

3. The heating furnace according to claim 2, characterized in that: The limiting part (5) is located at the end of the mounting part (401) away from the combustion chamber (2), and the limiting part (5) is symmetrically distributed around the central axis of the mounting part (401).

4. The heating furnace according to claim 2, characterized in that: The inner wall of the exhaust pipe (3) forms the limiting fitting part, and the limiting part (5) is interference-fitted with the inner wall of the exhaust pipe (3); or, the top of the end of the exhaust pipe (3) away from the combustion chamber (2) is provided with an overlapping surface, the overlapping surface forms the limiting fitting part, and the limiting part (5) overlaps on the overlapping surface.

5. The heating furnace according to claim 2, characterized in that, The number of the baffles (402) is multiple, and the multiple baffles (402) are spaced apart on the mounting part (401) along the axial direction of the exhaust pipe (3).

6. The heating furnace according to claim 5, characterized in that: The baffle (402) has a sheet-like structure, and at least two baffles (402) are grouped together. The baffles (402) in the same group are located on the same side of the mounting part (401). Along the axial direction of the exhaust pipe (3), each pair of adjacent baffles (402) are spaced apart on the mounting part (401) and are located on opposite sides of the mounting part (401).

7. The heating furnace according to claim 6, characterized in that, The turbulence section (402) is fitted with the inner wall of the exhaust pipe (3) with a clearance, and the edge of the turbulence section (402) and the inner wall of the exhaust pipe (3) define a flue gas bypass channel; the mounting section (401) is provided with a plurality of guide holes (4011), at least one of the guide holes (4011) is located between two adjacent groups of turbulence sections (402), and the interval between two adjacent groups of turbulence sections (402) together with the guide hole (4011) and the inner wall of the exhaust pipe (3) defines a heat exchange main channel (6); the same group of turbulence sections (402) are separated to form a flue gas retention space (7), and the flue gas retention space (7) is connected to the flue gas bypass channel and the heat exchange main channel (6) respectively.

8. The heating furnace according to claim 7, characterized in that, The flow area of ​​the flue gas bypass channel is smaller than the flow area of ​​the heat exchange main channel (6).

9. The heating furnace according to claim 2, characterized in that, The turbulence section (402) is spirally coiled around the outer surface of the mounting section (401) and extends from one end of the exhaust pipe (3) to the other end along the axial direction of the exhaust pipe (3).

10. The heating furnace according to any one of claims 1 to 9, characterized in that: It also includes a burner (8) and a fan (9). One end of the burner (8) is connected to the combustion chamber (2), and the fan (9) is connected to the burner (8) through an air supply pipe (10). The two ends of the air supply pipe (10) are detachably connected to the fan (9) and the burner (8), respectively.

Images