A fully heated calorifier

Abstract

The utility model discloses a kind of fully heated heating boiler, including boiler body and the heating cavity constituted in the boiler body, heating cavity is arranged with heating pipe, further including the water distribution device opened in the boiler body, water distribution device one end is connected with external water source, the end face of the other end is opened with multiple independent downcomer holes communicated with heating cavity, heating cavity is provided with the water distribution board of abutting with water distribution device, the first flow guide plate connected with water distribution board, water distribution board and first flow guide plate jointly define the first water path of being close to heating cavity cavity wall and the second water path of being away from heating cavity cavity wall.The utility model guides water flow to cover wider area, and form more reasonable flow path, to significantly improve heating uniformity and heat exchange efficiency, improve overall performance and energy efficiency of boiler.

Description

Technical Field

[0001] This utility model relates to the field of thermal energy engineering equipment technology, and in particular to a fully heated heating boiler. Background Technology

[0002] Traditional heating boilers typically consist of a boiler body with an internal heating chamber containing heating tubes as a heat source. External water needs to be introduced into the heating chamber for heating. While existing technologies employ various methods for introducing water into the heating chamber, they generally suffer from several drawbacks: the water flow is concentrated near the inlet or flows in a single direction, lacking a water distribution device that prevents the water from spreading throughout the entire heating chamber. This results in some heating tubes failing to quickly contact the water for heat exchange, leading to slow heating efficiency and hindering the boiler's overall thermal efficiency. Furthermore, some heating tubes may overheat due to insufficient localized water flow, affecting their lifespan. Additionally, the heating chamber lacks a mechanism for effectively guiding and controlling the diverted water flow path, causing the water to easily remix or flow in uncontrollable directions after entering the heating chamber, failing to create an optimized water flow organization that covers the entire effective space of the heating chamber. Utility Model Content

[0003] The purpose of this invention is to provide a fully heated boiler that guides water flow to cover a wider area and forms a more reasonable flow path, thereby significantly improving heating uniformity and heat exchange efficiency, and enhancing the overall performance and energy efficiency of the boiler.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a fully heated heating boiler, comprising a boiler body and a heating chamber formed within the boiler body, wherein heating pipes are arranged in the heating chamber, and a water distribution device is also provided on the boiler body. One end of the water distribution device is connected to an external water source, and multiple independent drain holes communicating with the heating chamber are provided on the end face of the other end. A water distribution plate abutting against the water distribution device and a first guide plate connected to the water distribution plate are provided in the heating chamber. The water distribution plate and the first guide plate together define a first water flow path close to the wall of the heating chamber and a second water flow path away from the wall of the heating chamber.

[0005] By adopting the above technical solutions, the water flow can be guided to cover a wider area and form a more reasonable flow path, significantly improving heating uniformity and heat exchange efficiency, and enhancing the overall performance and energy efficiency of the boiler.

[0006] A further feature of this invention is that the water distribution plate includes a lateral extension and a longitudinal extension. Two first guide plates are configured and positioned relative to the longitudinal extension of the water distribution plate. The lateral extension is fixedly connected to the two first guide plates respectively. One end of the longitudinal extension is fixedly connected to the cavity wall of the heating chamber, and the other end extends to the lower part of the lateral extension, forming four independent heating areas with different orientations. The top of each heating area corresponds to a different drain hole. A first confluence port is defined between adjacent first guide plates, and the first confluence port connects to the independent heating areas within the first guide plates.

[0007] By adopting the above technical solutions, a more reasonable flow path is formed, which significantly improves heating uniformity and heat exchange efficiency.

[0008] A further feature of this invention is that a second guide plate is provided inside the heating chamber, the second guide plate being located inside the first guide plate and connected to the longitudinal extension.

[0009] By adopting the above technical solution, the path of water in the heating chamber is extended, the heating time of water is increased, and the heating uniformity and heat exchange efficiency are improved.

[0010] A further feature of this invention is that the first guide plate is a C-shaped plate, and the second guide plate is located within the area enclosed by the outline of the C-shaped plate. The first guide plate and the second guide plate work together to provide a meandering water flow path for the heating area within the C-shaped plate.

[0011] By adopting the above technical solution, the path of water in the heating chamber is extended, the heating time of water is increased, and the heating uniformity and heat exchange efficiency are improved.

[0012] A further feature of this invention is that the outer side of the symmetrically arranged first guide plate and the wall of the heating chamber jointly define a first flow path and a second flow path, the first flow path and the second flow path constituting the first water flow path; the inner side of the symmetrically arranged first guide plate and the second guide plate jointly define a third flow path and a fourth flow path having the same flow port, the third flow path and the fourth flow path constituting the second water flow path.

[0013] By adopting the above technical solutions, a more reasonable flow path is formed, which significantly improves heating uniformity and heat exchange efficiency.

[0014] A further feature of this invention is that a baffle is fixedly installed inside the heating chamber, which divides the heating chamber into an inner cavity and an outer cavity. The outer cavity is arranged around the inner cavity. The baffle has a single water inlet. The inner cavity and the outer cavity are connected through the water inlet. A steam outlet is provided at the end of the outer cavity away from the water inlet.

[0015] By adopting the above technical solution, the structure is compact and the layout is reasonable.

[0016] A further feature of this invention is that the heating tube is composed of a first U-shaped segment, a second U-shaped segment, and a third U-shaped segment located at the bottom of the heating chamber and connected to each other. The ends of the first U-shaped segment and the third U-shaped segment that are not connected to the second U-shaped segment both extend outside the heating chamber. The first U-shaped segment passes sequentially through the enclosure on the left side of the longitudinal extension, the first guide plate, and the second guide plate on the left side of the longitudinal extension and located inside the first guide plate to reach the second U-shaped segment. The second U-shaped segment passes sequentially through the second guide plate on the left side of the longitudinal extension, the water inlet, and the second guide plate on the right side of the longitudinal extension to reach the third U-shaped segment. The third U-shaped segment passes sequentially through the first guide plate on the right side of the longitudinal extension, the second guide plate on the right side of the longitudinal extension and located inside the first guide plate, and the enclosure on the right side of the longitudinal extension and extends outside the heating chamber.

[0017] By adopting the above technical solution and setting the first U-shaped section, the second U-shaped section and the third U-shaped section, the contact surface with the heating chamber is increased, the heating effect of the water in the heating chamber is better, and the heating uniformity and heat exchange efficiency are significantly improved.

[0018] A further feature of this invention is that a guide plate assembly is provided inside the heating chamber, the guide plate assembly includes multiple horizontal plate units, the horizontal plate units are spaced apart toward the water inlet, the horizontal plate units are located in the middle of the enclosure and are spaced apart from the enclosure to form a second confluence port, and / or, the horizontal plate units are connected to the enclosure and a third confluence port is opened on the horizontal plate units, at least one horizontal plate unit is close to the first confluence port, so that the water flowing out of the first confluence port is separated and connected to the first water flow path.

[0019] By adopting the above technical solution, the path of water in the heating chamber is extended, the heating time of water is increased, and the heating uniformity and heat exchange efficiency are improved.

[0020] A further feature of this invention is that the bottom of the heating chamber has a protruding part that accommodates the heating tube, and defines a first region where the protruding part is located and a second region outside the protruding part. A plurality of first protruding pillars are spaced apart in the first region, and the first protruding pillars make the water flow in the first water flow path and the second water flow path have an S-shaped trend.

[0021] By adopting the above technical solution, setting the first protruding column not only extends the path of water in the heating chamber, increases the heating time of water, and improves heating uniformity and heat exchange efficiency, but also increases the adsorption surface of vaporized water, allowing the water to spread rapidly when it flows.

[0022] A further feature of this invention is that a plurality of second protrusions are provided in the second region, the second protrusions being lower than the first protrusions.

[0023] By adopting the above technical solution and setting a second protruding post, the contact area with water is increased, resulting in better heating effect on the water in the heating chamber and significantly improving heating uniformity and heat exchange efficiency.

[0024] In summary, this utility model has the following beneficial effects: 1. By adopting a water distribution device, multiple independent drain holes, a water distribution plate, and a first guide plate, the water flow is guided to cover a wider area and form a more reasonable flow path, which significantly improves heating uniformity and heat exchange efficiency, and enhances the overall performance and energy efficiency of the boiler.

[0025] 2. The second guide plate is used to make the two branches on the lower left and lower right of the water distribution plate flow in a meandering manner under the guidance of the second guide plate and the inner walls of the two first guide plates on the left and right, which prolongs the path of water in the heating chamber, increases the heating time of water, and improves the heating uniformity and heat exchange efficiency.

[0026] 3. The use of the first protruding column not only extends the path of water in the heating chamber, increases the heating time of water, and improves heating uniformity and heat exchange efficiency, but also increases the adsorption surface of vaporized water, allowing the water to spread quickly when it flows.

[0027] 4. The use of a second protruding post increases the contact area with water, resulting in better heating of the water in the heating chamber and significantly improving heating uniformity and heat exchange efficiency. Attached Figure Description

[0028] Figure 1 This is a top view of the present invention.

[0029] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0030] Figure 3 This is an exploded view of the heating element used in this utility model.

[0031] Figure 4 This is a schematic diagram of the water separation device of this utility model.

[0032] In the diagram: 1. Boiler body; 2. Heating chamber; 21. Water distribution plate; 211. Lateral extension; 212. Longitudinal extension; 22. First guide plate; 23. Second guide plate; 24. Heating area; 25. Enclosure; 251. Water inlet; 26. Inner cavity; 27. Outer cavity; 28. Second protrusion; 3. Heating pipe; 31. First U-shaped section; 32. Second U-shaped section; 33. Third U-shaped section; 4. Water distribution device; 41. Drain hole; 5. First confluence port; 6. Horizontal plate unit; 61. First horizontal plate unit; 62. Second horizontal plate unit; 63. Third horizontal plate unit; 7. Second confluence port; 8. Third confluence port; 9. Protrusion; 91. First protrusion. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings.

[0034] A fully heated heating boiler, such as Figure 1-4 As shown, the boiler includes a boiler body 1 and a heating chamber 2 formed within the boiler body 1. The heating chamber 2 is equipped with heating pipes 3. The boiler also includes a water distribution device 4 on the boiler body 1. One end of the water distribution device 4 is connected to an external water source, and the other end has multiple independent drain holes 41 that communicate with the heating chamber 2. The heating chamber 2 is equipped with a water distribution plate 21 that abuts against the water distribution device 4 and a first guide plate 22 connected to the water distribution plate 21. The water distribution plate 21 and the first guide plate 22 together define a first water flow path close to the wall of the heating chamber 2 and a second water flow path away from the wall of the heating chamber 2. There are four independent drain holes 41, located at the upper left, upper right, lower left, and lower right positions of the water distribution device 4, respectively. Any two independent drain holes 41 are symmetrical about the center point of the water distribution device 4. The water distribution plate 21 is located between the four independent drain holes 41. External water flows to the heating chamber 2 through the four independent drain holes 41. Under the obstruction of the water distribution plate 21, the water is divided into four branches along the upper left, upper right, lower left, and lower right of the water distribution plate 21. Two first guide plates 22 are configured. The upper end of the water distribution plate 21 is connected to the cavity wall of the heating chamber 2, and its left and right ends are connected to the two first guide plates 22 respectively. The cavity wall of heating cavity 2 surrounds the outside of the first guide plate 22 and the water distribution plate 21. As the external water source continues to supply water, the two branches on the upper left and upper right of the water distribution plate 21 flow along the cavity wall of heating cavity 2 and the outer wall of the first guide plate 22 to form the first water flow path. The two branches on the lower left and lower right of the water distribution plate 21 flow along the inner wall of the first guide plate 22 to form the second water flow path. By setting the water distribution device 4, multiple independent drain holes 41 and the water distribution plate 21, the water flow is guided to cover a wider area and form a more reasonable flow path, which significantly improves the heating uniformity and heat exchange efficiency, and improves the overall performance and energy efficiency of the boiler.

[0035] Preferably, the outer side of the symmetrically arranged first guide plate 22 and the cavity wall of the heating chamber 2 jointly define a first flow path and a second flow path, which constitute the first water flow path. The inner side of the symmetrically arranged first guide plate 22 and the second guide plate 23 jointly define a third flow path and a fourth flow path with the same flow outlet, which constitute the second water flow path. The upper left branch of the water distribution plate 21 flows between the cavity wall of the heating chamber 2 and the outer wall of the first guide plate 22, forming the first flow path; the upper right branch of the water distribution plate 21 flows between the cavity wall of the heating chamber 2 and the outer wall of the first guide plate 22, forming the second flow path; the lower left branch of the water distribution plate 21 flows between the inner wall of the left first guide plate 22 and the second guide plate 23, forming the third flow path; and the lower right branch of the water distribution plate 21 flows between the inner wall of the right first guide plate 22 and the second guide plate 23, forming the fourth flow path. This creates a more reasonable flow path, significantly improving heating uniformity and heat exchange efficiency.

[0036] Preferably, the water distribution plate 21 includes a lateral extension 211 and a longitudinal extension 212. The first guide plate 22 is disposed relative to the longitudinal extension 212 of the water distribution plate 21. The lateral extension 211 is fixedly connected to two of the first guide plates 22. One end of the longitudinal extension 212 is fixedly connected to the cavity wall of the heating chamber 2, and the other end extends below the lateral extension 211. A first confluence port 5 is defined between adjacent first guide plates 22, and the first confluence port 5 connects to the independent heating area 24 within the first guide plate 22. The lateral extension 211 and the longitudinal extension 212 are orthogonally arranged, and the first guide plates 22 are mirror images of each other on both sides of the longitudinal extension 212. The heating areas 24 on both sides of the longitudinal extension 212 have the same area. The first confluence port 5 merges the two branches at the lower left and lower right of the water distribution plate 21, forming a more reasonable flow path and significantly improving heating uniformity and heat exchange efficiency.

[0037] Preferably, a second guide plate 23 is also provided inside the heating chamber 2. The second guide plate 23 is located inside the first guide plate 22 and is connected to the longitudinal extension 212. The second guide plate 23 is horizontally arranged inside the heating chamber 2 and perpendicular to the longitudinal extension 212. The two branches on the lower left and lower right of the water distribution plate 21 flow in a meandering manner under the guidance of the second guide plate 23 and the inner walls of the two first guide plates 22, and converge through the first confluence port 5, finally flowing out of the area enclosed by the two first guide plates 22. This prolongs the path of water in the heating chamber 2, increases the heating time of the water, and improves the heating uniformity and heat exchange efficiency.

[0038] Preferably, the first guide plate 22 is a C-shaped plate, and the second guide plate 23 is located in the area enclosed by the outline of the C-shaped plate, so that the water in the C-shaped plate moves along the "C" shape, which prolongs the path of the water in the heating chamber 2, increases the heating time of the water, and improves the heating uniformity and heat exchange efficiency.

[0039] Preferably, a baffle 25 is fixedly installed inside the heating chamber 2, dividing the heating chamber 2 into an inner cavity 26 and an outer cavity 27. The outer cavity 27 is arranged around the inner cavity 26. The baffle 25 has a single water inlet 251, and the inner cavity 26 and the outer cavity 27 are connected through the water inlet 251. A steam outlet is provided at the end of the outer cavity 27 away from the water inlet 251. The structure is compact and the layout is reasonable.

[0040] Additionally, it is worth noting that the wall of the heating cavity 2, which is mentioned elsewhere in the context, is the wall of the inner cavity 26. The first water flow path, the second water flow path, and the four independent heating areas 24 are all located in the inner cavity 26.

[0041] Preferably, the heating tube 3 is composed of a first U-shaped segment 31, a second U-shaped segment 32, and a third U-shaped segment 33 located at the bottom of the heating chamber 2 and connected to each other. The ends of the first U-shaped segment 31 and the third U-shaped segment 33 that are not connected to the second U-shaped segment 32 both extend to the outside of the heating chamber 2. The first U-shaped segment 31 passes sequentially through the enclosure 25 on the left side of the longitudinal extension 212, the first guide plate 22, and the second guide plate 23 on the left side of the longitudinal extension 212 and located inside the first guide plate 22 to reach the second U-shaped segment 32. The second U-shaped segment 32 passes sequentially through the second guide plate 23 on the left side of the longitudinal extension 212, the water inlet 251, and the second guide plate 23 on the right side of the longitudinal extension 212 to reach the third U-shaped segment 33. The third U-shaped segment 33 passes sequentially through the first guide plate 22 on the right side of the longitudinal extension 212, the second guide plate 23 on the right side of the longitudinal extension 212 and located inside the first guide plate 22, the enclosure 25 on the right side of the longitudinal extension 212, and extends to the outside of the heating chamber 2. The heating tube 3 protrudes from the bottom of the heating chamber 2. The first U-shaped segment 31 and the third U-shaped segment 33 are located above the heating chamber 2, and the tops of the first U-shaped segment 31 and the third U-shaped segment 33 abut against the top of the enclosure 25. The left side of the first U-shaped segment 31 abuts against the left side of the enclosure 25, and the right side of the third U-shaped segment 33 abuts against the right side of the enclosure 25. The second U-shaped segment 32 is located below the heating chamber 2 and abuts against the bottom of the enclosure 25. The heating tube 3 is arranged in an "M" shape. By setting the first U-shaped segment 31, the second U-shaped segment 32 and the third U-shaped segment 33, the contact surface with the heating chamber 2 is increased, which improves the heating effect of the water in the heating chamber 2 and significantly improves the heating uniformity and heat exchange efficiency.

[0042] Preferably, a guide plate assembly is provided inside the heating chamber 2. The guide plate assembly includes multiple horizontal plate units 6, which are spaced apart and facing the water inlet 251. Below the first guide plate 22, the horizontal plate units 6 are arranged horizontally in sequence: a first horizontal plate unit 616, a second horizontal plate unit 626, and a third horizontal plate unit 636. The first horizontal plate unit 616 is located in the middle of the enclosure 25, and a second confluence port 7 is spaced apart from the left and right sides of the enclosure 25. The second horizontal plate unit 626 is connected to the enclosure 25, and a third confluence port 8 is opened in the middle of the second horizontal plate unit 626. The third horizontal plate unit 636 is located in the middle of the enclosure 25, and a second confluence port 7 is spaced apart from the left and right sides of the enclosure 25. Water flows from the first confluence port 5 through the third and fourth flow paths. The water is divided into branches that flow towards the left and right sides of the enclosure 25 under the obstruction of the first horizontal plate unit 616. These branches merge with the water in the first flow path and the fourth flow path, respectively. The merged water then flows out through the second confluence port 7. Under the obstruction of the second horizontal plate unit 626, the water on the left and right sides of the second confluence port 7 merges again and flows out through the third confluence port 8. Under the obstruction of the third horizontal plate unit 636, the water is divided into branches that flow towards the left and right sides of the enclosure 25. Under the obstruction of the lower enclosure 25, the water converges towards the water outlet 251 and flows out into the outer cavity 27. At this time, the water in the outer cavity 27 gradually vaporizes into steam and is discharged from the steam outlet along the side wall of the outer cavity 27. This prolongs the path of the water in the heating cavity 2, increases the heating time of the water, and improves the heating uniformity and heat exchange efficiency.

[0043] Preferably, the bottom of the heating chamber 2 has a protruding portion 9 to accommodate the heating tube 3, defining a first region where the protruding portion 9 is located and a second region outside the protruding portion 9. A plurality of first protruding pillars 91 are spaced apart within the first region, causing the water flow in the first and second water paths to follow an S-shaped trajectory. The second region is the remaining area of ​​the heating chamber 2 excluding the first region. The protruding portion 9 is M-shaped, passing through the starting ends of the first, second, third, and fourth flow paths. The first protruding pillars 91 are distributed at the starting ends of these flow paths, causing the water flowing into the heating chamber 2 to meander in an S-shape. By setting the first protruding pillars 91, not only is the path of the water in the heating chamber 2 extended, increasing the heating time and improving heating uniformity and heat exchange efficiency, but the adsorption surface for vaporized water is also increased, allowing the water to spread rapidly during flow.

[0044] Preferably, a plurality of second protrusions 28 are provided in the second region, and the second protrusions 28 are lower than the first protrusions 91. The second protrusions 28 in the second region are arranged compactly, so that the water flow passing through the first region meanders forward, while the water flow passing through the second region is relatively straight forward. The second protrusions 28 can be trapezoidal protrusions, spherical protrusions, or baffles. They can be any shape of protruding component that can increase the contact area with water. This application does not limit the specific shape of the second protrusions 28. By setting the second protrusions 28, the contact area with water is increased, the heating effect of the water in the heating chamber 2 is better, and the heating uniformity and heat exchange efficiency are significantly improved.

[0045] In a preferred embodiment, the second protrusions 28 are arranged in an array and staggered, forming a plurality of heating grooves (not shown in the figure) between the staggered second protrusions 28. The heating groove can be formed by a plurality of second protrusions 28 whose bottoms are attached to each other, or by a plurality of second protrusions 28 whose bottoms are attached to each other and the wall of the heating cavity 2 that is attached to the bottom of the second protrusions 28. When water passes through the heating groove, the water flow time is prolonged due to the obstruction of the side walls of the plurality of second protrusions 28 in different orientations or the side walls of the plurality of second protrusions 28 and the wall of the heating cavity 2, which significantly improves the heating uniformity and heat exchange efficiency.

[0046] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A fully heated heating boiler comprising a boiler body (1) and a heating chamber (2) formed in the boiler body (1), a heating tube (3) being arranged in the heating chamber (2), characterized in that: It also includes a water distribution device (4) opened on the boiler body (1). One end of the water distribution device (4) is connected to an external water source, and the other end has multiple independent drain holes (41) that communicate with the heating chamber (2). The heating chamber (2) is provided with a water distribution plate (21) that abuts against the water distribution device (4) and a first guide plate (22) that is connected to the water distribution plate (21). The water distribution plate (21) and the first guide plate (22) together define a first water flow path close to the cavity wall of the heating chamber (2) and a second water flow path away from the cavity wall of the heating chamber (2).

2. A fully heated calorifier according to claim 1, characterised in that: The water distribution plate (21) includes a lateral extension (211) and a longitudinal extension (212). The first guide plate (22) is configured as two pieces and is set relative to the longitudinal extension (212) of the water distribution plate (21). The lateral extension (211) is fixedly connected to the two first guide plates (22) respectively. One end of the longitudinal extension (212) is fixedly connected to the cavity wall of the heating chamber (2), and the other end extends to the lower part of the lateral extension (211) to form four independent heating areas (24) with different orientations. The top of each heating area (24) corresponds to a different drain hole (41). The first confluence port (5) is defined between adjacent first guide plates (22). The first confluence port (5) connects to the independent heating areas in the first guide plate (22).

3. A fully heated calorifier according to claim 2, characterised in that: The heating chamber (2) is also provided with a second guide plate (23), which is located inside the first guide plate (22) and is connected to the longitudinal extension (212).

4. A fully heated calorifier according to claim 3, characterised in that: The first guide plate (22) is a C-shaped plate, and the second guide plate (23) is located in the area enclosed by the outline of the C-shaped plate. The first guide plate (22) and the second guide plate (23) work together to make the heating area (24) in the C-shaped plate have a meandering water flow path.

5. A fully heated calorifier according to claim 3, wherein: The outer side of the symmetrically arranged first guide plate (22) and the cavity wall of the heating chamber (2) jointly define the first flow path and the second flow path. The first flow path and the second flow path constitute the first water flow path. The inner side of the symmetrically arranged first guide plate (22) and the second guide plate (23) jointly define the third flow path and the fourth flow path with the same flow port. The third flow path and the fourth flow path constitute the second water flow path.

6. A fully heated calorifier according to claim 5, characterised in that: A baffle (25) is fixedly installed inside the heating chamber (2). The baffle (25) divides the heating chamber (2) into an inner cavity (26) and an outer cavity (27). The outer cavity (27) is arranged around the inner cavity (26). The baffle (25) has a single water inlet (251). The inner cavity (26) and the outer cavity (27) are connected through the water inlet (251). The outer cavity (27) has a steam outlet at the end away from the water inlet (251).

7. A fully heated calorifier according to claim 6, characterised in that: The heating tube (3) is composed of a first U-shaped segment (31), a second U-shaped segment (32), and a third U-shaped segment (33) located at the bottom of the heating chamber (2) and connected to each other. The ends of the first U-shaped segment (31) and the third U-shaped segment (33) that are not connected to the second U-shaped segment (32) both extend to the outside of the heating chamber (2). The first U-shaped segment (31) passes sequentially through the enclosure (25) on the left side of the longitudinal extension (212), the first guide plate (22), and the second guide plate (23) on the left side of the longitudinal extension (212) and located inside the first guide plate (22) to reach the second U-shaped segment (33). The second U-shaped segment (32) passes sequentially through the second guide plate (23) on the left side of the longitudinal extension (212), the water inlet (251), and the second guide plate (23) on the right side of the longitudinal extension (212) to reach the third U-shaped segment (33). The third U-shaped segment (33) passes sequentially through the first guide plate (22) on the right side of the longitudinal extension (212), the second guide plate (23) on the right side of the longitudinal extension (212) and located inside the first guide plate (22), the enclosure (25) on the right side of the longitudinal extension (212) and extends to the outside of the heating chamber (2).

8. A fully heated calorifier according to claim 5, wherein: The heating chamber (2) is provided with a guide plate assembly, which includes multiple horizontal plate units (6). The horizontal plate units (6) are spaced apart and face the water inlet (251). The horizontal plate units (6) are located in the middle of the enclosure (25) and are spaced apart from the enclosure (25) to form a second confluence port (7). Or, the horizontal plate units (6) are connected to the enclosure (25) and a third confluence port (8) is opened on the horizontal plate units (6). At least one horizontal plate unit (6) is close to the first confluence port (5) to separate the water flowing out of the first confluence port (5) and connect the first water flow path.

9. A fully heated boiler according to claim 1, characterized in that: The bottom of the heating chamber (2) is provided with a protrusion (9) to accommodate the heating tube (3), and defines a first region where the protrusion is located and a second region outside the protrusion. A plurality of first protrusions (91) are provided at intervals in the first region. The first protrusions (91) make the water flow in the first water flow path and the second water flow path have an S-shaped trend.

10. A fully heated calorifier according to claim 9, characterised in that: The second region is provided with a plurality of second protrusions (28), the second protrusions (28) being lower than the first protrusions (91).

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