Novel boiler structure

Abstract

The utility model relates to a novel boiler structure which comprises a header. The two inner shaping arc plates are symmetrically arranged on the two sides of the header in the width direction, and the two inner shaping arc plates are arranged in an arc-shaped protruding mode in the direction away from each other; the two outer shaping arc plates are symmetrically arranged on the two sides of the header in the width direction, the two outer shaping arc plates are arranged in an arc-shaped protruding mode in the direction away from each other, the two outer shaping arc plates are located on the radial outer sides of the two inner shaping arc plates correspondingly, and the outer shaping arc plates and the corresponding inner shaping arc plates are arranged in a spaced mode; the inner shaping arc plate and the outer shaping arc plate are both provided with reinforcing grooves. The reinforcing grooves can greatly reinforce the structural strength of the inner shaping arc plate and the outer shaping arc plate, so that it is guaranteed that the inner shaping arc plate and the outer shaping arc plate are not prone to deformation after being pressed, the inner shaping arc plate and the outer shaping arc plate can be formed by pressing plates, the manufacturing process is simple, and maintenance and overhaul are easier.

Description

Technical Field

[0001] This utility model relates to the field of boiler equipment, and in particular to a novel boiler structure. Background Technology

[0002] Existing boiler structures include membrane walls, in which water circulates for heat exchange. However, the membrane walls of existing boilers are generally composed of a combination of tubes and fins, which is complex to manufacture and inconvenient to maintain and repair. Utility Model Content

[0003] The purpose of this utility model is to provide a new type of boiler structure, which has the characteristics of simple structure, easy maintenance and good applicability.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A novel boiler structure includes: a header; two inner shaped arc plates symmetrically arranged on both sides of the header's width direction, the two inner shaped arc plates protruding in an arc shape in opposite directions; two outer shaped arc plates symmetrically arranged on both sides of the header's width direction, the two outer shaped arc plates protruding in an arc shape in opposite directions, the two outer shaped arc plates being located radially outside the two inner shaped arc plates respectively, the outer shaped arc plates being spaced apart from the corresponding inner shaped arc plates; both the inner and outer shaped arc plates are provided with reinforcing grooves.

[0006] Preferably, the inner shaped arc plate is provided with a plurality of reinforcing grooves, and the reinforcing grooves are arranged sequentially at intervals along the length direction of the header; the outer shaped arc plate is provided with a plurality of reinforcing grooves, and the reinforcing grooves are arranged sequentially at intervals along the length direction of the header.

[0007] Preferably, along the radial direction of the inner shaped arc plate, each of the reinforcing grooves protrudes radially outward; along the radial direction of the outer shaped arc plate, each of the reinforcing grooves protrudes radially outward.

[0008] Preferably, the inner shaped arc plate and the outer shaped arc plate are arranged concentrically.

[0009] Preferably, the novel boiler structure further includes a front furnace wall, which is fixedly disposed on one side of the header along its length. The front furnace wall includes an inner front furnace wall and an outer front furnace wall, which are spaced apart along the length of the header. The inner shaped arc plate is fixedly connected to the inner front furnace wall, and the outer shaped arc plate is fixedly connected to the outer front furnace wall.

[0010] Preferably, the novel boiler structure further includes a rear furnace wall, which is fixedly disposed on the other side of the header along its length. The rear furnace wall includes an inner rear furnace wall and an outer rear furnace wall, which are spaced apart along the length of the header. The inner plastic-shaped arc plate is fixedly connected to the inner rear furnace wall, and the outer plastic-shaped arc plate is fixedly connected to the outer rear furnace wall.

[0011] Preferably, the novel boiler structure further includes a boiler drum, which is connected to the inner shaped arc plate, the outer shaped arc plate, the front furnace wall, and the rear furnace wall; along the length direction of the header, the boiler drum located between the inner front furnace wall and the outer front furnace wall has a front through hole, which connects the boiler drum and the front furnace wall; along the length direction of the header, the boiler drum located between the inner rear furnace wall and the outer rear furnace wall has a rear through hole, which connects the boiler drum and the rear furnace wall; along the radial direction of the outer shaped arc plate, the boiler drum located between the inner shaped arc plate and the outer shaped arc plate has a boiler drum through hole, which connects the space between the inner shaped arc plate and the outer shaped arc plate and the boiler drum.

[0012] Preferably, both the inner and outer shaped arc plates are connected to the header. Along the width direction of the header, the header located between the inner and outer shaped arc plates is provided with a header through hole, which connects the space between the inner and outer shaped arc plates and the header.

[0013] Preferably, the novel boiler structure further includes a front tube sheet, a front smoke box door, a rear lower tube sheet, a rear upper tube sheet, a connecting plate, a second return smoke pipe, and a third return smoke pipe; the front smoke box door and the front tube sheet are both connected to the boiler drum, and are spaced apart along the length of the header, with a front smoke box surrounding the front smoke box door, the front tube sheet, and the boiler drum; the rear lower tube sheet and the rear upper tube sheet are both fixed to the boiler drum, and are located along the length of the header. The lower rear tube sheet and the upper rear tube sheet are spaced apart, and the connecting plate seals and connects the lower rear tube sheet and the upper rear tube sheet. A combustion chamber is formed between the connecting plate, the lower rear tube sheet, and the rear furnace wall. The second and third return smoke pipes are both located inside the boiler drum. One end of the second return smoke pipe is connected to the combustion chamber, and the other end is connected to the front smoke box. One end of the third return smoke pipe is connected to the front smoke box, and the other end passes through the upper rear tube sheet to form a smoke outlet.

[0014] Preferably, a furnace chamber is formed between the boiler drum, the front furnace wall, the rear furnace wall, the header, and the inner shaped arc plate, and the furnace chamber is in communication with the combustion chamber.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The novel boiler structure provided in the above technical solution features two symmetrically arranged inner plastic arc plates and two outer plastic arc plates located radially outside the inner plastic arc plates. Both the inner and outer plastic arc plates are provided with reinforcing grooves, which can greatly enhance the structural strength of the inner and outer plastic arc plates, thereby ensuring that the inner and outer plastic arc plates are not easily deformed under pressure. Furthermore, both the inner and outer plastic arc plates can be formed by pressing sheet metal, which simplifies the manufacturing process and makes maintenance and repair easier. Attached Figure Description

[0017] Figure 1 A schematic cross-sectional view of the length direction of the novel boiler structure provided in this embodiment of the utility model;

[0018] Figure 2 A cross-sectional view of the width direction of the novel boiler structure provided in this embodiment of the utility model;

[0019] Figure 3 A schematic diagram of water circulation in a novel boiler structure provided for an embodiment of this utility model.

[0020] 1. Header; 2. Inner shaped arc plate; 3. Outer shaped arc plate; 4. Reinforcing groove; 5. Front furnace wall; 6. Rear furnace wall; 7. Boiler drum; 8. Front tube sheet; 9. Front smoke box door; 10. Rear lower tube sheet; 11. Rear upper tube sheet; 12. Connecting plate; 13. Second pass smoke pipe; 14. Third pass smoke pipe; 15. Front smoke box; 16. Combustion chamber; 17. Furnace; 18. Exhaust port. Detailed Implementation

[0021] The present invention will now be described in more detail with reference to the accompanying drawings. It should be noted that the description of the present invention with reference to the accompanying drawings is merely illustrative and not restrictive. Various embodiments can be combined with each other to form other embodiments not shown in the following description.

[0022] This utility model provides a novel boiler structure, which consists of two symmetrically arranged inner plastic arc plates 2 and two outer plastic arc plates 3 arranged radially outside the inner plastic arc plates 2. Both the inner plastic arc plates 2 and the outer plastic arc plates 3 are provided with reinforcing grooves 4, which can greatly enhance the structural strength of the inner plastic arc plates 2 and the outer plastic arc plates 3, thereby ensuring that the inner plastic arc plates 2 and the outer plastic arc plates 3 are not easily deformed under pressure. Furthermore, both the inner plastic arc plates 2 and the outer plastic arc plates 3 can be formed by pressing sheet metal, which simplifies the manufacturing process and makes maintenance and repair easier.

[0023] Please see Figures 1 to 3Specifically, the header 1 is roughly rectangular in shape, so the long side of the header 1 is defined as the length direction, and the short side of the header 1 is defined as the width direction.

[0024] Two inner plastic arc plates 2 are provided and symmetrically arranged on both sides of the width direction of the header 1. The two inner plastic arc plates 2 are arranged in an arc shape protruding in opposite directions.

[0025] Two outer plastic arc plates 3 are provided and symmetrically arranged on both sides of the width direction of the header 1. The two outer plastic arc plates 3 are arranged in an arc shape protruding in opposite directions. The two outer plastic arc plates 3 are respectively located on the radial outer side of the two inner plastic arc plates 2. The outer plastic arc plates 3 and the corresponding inner plastic arc plates 2 are spaced apart. Both the inner plastic arc plates 2 and the outer plastic arc plates 3 are provided with reinforcing grooves 4.

[0026] To further enhance the structural strength of the inner shaped arc plate 2 and the outer shaped arc plate 3, the inner shaped arc plate 2 is provided with multiple reinforcing grooves 4, which are distributed sequentially at intervals along the length of the header 1. Therefore, each reinforcing groove 4 can uniformly strengthen the structural strength of various parts of the inner shaped arc plate 2, thereby ensuring that the inner shaped arc plate 2 is not easily deformed under pressure. Similarly, the outer shaped arc plate 3 is provided with multiple reinforcing grooves 4, which are distributed sequentially at intervals along the length of the header 1.

[0027] It should be noted that since both the inner and outer plastic arc plates are arc-shaped, the direction from the center of the inner and outer plastic arc plates 2 to the edge is defined as radial.

[0028] Along the radial direction of the inner shaped arc plate 2, each reinforcing groove 4 protrudes radially outward; along the radial direction of the outer shaped arc plate 3, each reinforcing groove 4 protrudes radially outward. That is, the protruding direction of the reinforcing groove 4 is the same as that of the inner and outer shaped arc plates 2 and 3, thereby further reducing the manufacturing difficulty of the inner and outer shaped arc plates 2 and 3. Furthermore, the reinforcing groove 4 can enhance the structural strength of the inner and outer shaped arc plates 2 and 3, ensuring that they are not easily deformed under pressure.

[0029] In addition, the inner shaped arc plate 2 and the outer shaped arc plate 3 can be set concentrically, that is, the inner shaped arc plate 2 and the outer shaped arc plate 3 have the same center.

[0030] The front furnace wall 5 is located on one side of the header 1 along its length and is fixedly connected to the header 1. The front furnace wall 5 includes an inner front furnace wall and an outer front furnace wall. Along the length of the header 1, the inner front furnace wall and the outer front furnace wall are spaced apart, so there is a certain space between the inner front furnace wall and the outer front furnace wall, which allows water to flow through.

[0031] The inner shaped arc plate 2 is fixedly connected to the inner front furnace wall, and the outer shaped arc plate 3 is fixedly connected to the outer front furnace wall. It can be assumed that the space between the inner shaped arc plate 2 and the outer shaped arc plate 3 is connected to the space between the inner front furnace wall and the outer front furnace wall.

[0032] The rear furnace wall 6 is located on the other side of the header 1 along its length, and is fixedly connected to the header 1. The rear furnace wall 6 includes an inner rear furnace wall and an outer rear furnace wall, which are spaced apart along the length of the header 1; therefore, there is a certain space between the inner and outer rear furnace walls, which allows water to flow through.

[0033] The inner shaped arc plate 2 is fixedly connected to the inner rear furnace wall, and the outer shaped arc plate 3 is fixedly connected to the outer rear furnace wall. It can be assumed that the space between the inner shaped arc plate 2 and the outer shaped arc plate 3 is connected to the space between the inner rear furnace wall and the outer rear furnace wall.

[0034] The boiler drum 7 is located on the upper side of the inner plastic arc plate 2, the outer plastic arc plate 3, the front furnace wall 5, and the rear furnace wall 6, and the boiler drum 7 is connected to the inner plastic arc plate 2, the outer plastic arc plate 3, the front furnace wall 5, and the rear furnace wall 6.

[0035] To facilitate water flow, a front through hole is provided in the boiler drum 7 located between the inner front furnace wall and the outer front furnace wall along the length of the header 1. The front through hole connects the boiler drum 7 and the front furnace wall 5, so the water in the boiler drum 7 and the water in the front furnace wall 5 can flow to each other through the front through hole.

[0036] To facilitate water flow, the boiler drum 7, located between the inner and outer rear furnace walls along the length of the header 1, is provided with a rear through hole. The rear through hole connects the boiler drum 7 and the rear furnace wall 6, so the water in the boiler drum 7 and the water in the rear furnace wall 6 can flow to each other through the front through hole.

[0037] To facilitate water flow, the boiler drum 7, located between the inner and outer shaped arc plates 2 and 3 along the radial direction of the outer shaped arc plate 3, has a boiler drum through hole. This through hole connects the space between the inner and outer shaped arc plates 2 and 3 and the boiler drum 7. Therefore, water between the inner and outer shaped arc plates 2 and 3 and water inside the boiler drum 7 can flow between them through the boiler drum through hole.

[0038] To facilitate water flow, both the inner shaped arc plate 2 and the outer shaped arc plate 3 are connected to the header 1. Along the width direction of the header 1, the header 1 located between the inner shaped arc plate 2 and the outer shaped arc plate 3 is provided with a header through hole, which connects the space between the inner shaped arc plate 2 and the outer shaped arc plate 3 and the header 1. Therefore, water between the inner shaped arc plate 2 and the outer shaped arc plate 3 and water in the header 1 can flow between each other through the header through hole.

[0039] Both the front smoke box door 9 and the front tube plate 8 are connected to the boiler drum 7. Specifically, the front tube plate 8 can be located inside the boiler drum 7, and the front smoke box door 9 can be located at one end of the length direction of the boiler drum 7. Along the length direction of the header 1, the front smoke box door 9 and the front tube plate 8 are spaced apart, and the front smoke box 15 is arranged between the front smoke box door 9, the front tube plate 8, and the boiler drum 7.

[0040] Both the lower rear tube sheet 10 and the upper rear tube sheet 11 are fixed to the boiler drum 7, and are spaced apart along the length of the header 1. The lower rear tube sheet 10 may be located below the upper rear tube sheet 11. A connecting plate 12 seals and connects the lower rear tube sheet 10 and the upper rear tube sheet 11, and a combustion chamber 16 is formed between the connecting plate 12, the lower rear tube sheet 10, and the rear furnace wall 6.

[0041] Both the second-pass flue 13 and the third-pass flue 14 are located inside the boiler drum 7, with the second-pass flue 13 positioned below the third-pass flue 14. One end of the second-pass flue 13 is connected to the combustion chamber 16, and the other end is connected to the front smoke box 15. One end of the third-pass flue 14 is connected to the front smoke box 15, and the other end passes through the rear upper tube sheet 11 to form a smoke exhaust port 18.

[0042] A furnace chamber 17 is arranged between the boiler drum 7, the front furnace wall 5, the rear furnace wall 6, the header 1, and the inner plastic arc plate 2. The furnace chamber 17 is connected to the combustion chamber 16.

[0043] In summary, the flue gas flow direction of the new boiler structure is as follows: the high-temperature flue gas generated by fuel combustion enters the furnace 17 through the fire port, and after heat exchange with the water between the boiler drum 7, header 1, front furnace wall 5, rear furnace wall 6, inner plastic arc plate 2, and outer plastic arc plate 3, the flue gas enters the combustion chamber 16, then enters the front smoke box 15 after heat exchange through the second pass smoke pipe 13, and finally enters the exhaust port 18 after heat exchange through the third pass smoke pipe 14.

[0044] The water system flow direction of the new boiler structure is as follows: cold water enters the boiler body through the inlet pipe seat, flows through the water flow channel of the rear furnace wall 6 to the space between the inner and outer plastic arc plates 2 and 3, then flows into the space between the front furnace walls 5, and simultaneously flows into the header 1 through the header through-hole, and into the boiler drum 7 through the front through-hole, rear through-hole, and boiler drum through-hole, until the entire space of header 1, inner and outer plastic arc plates 2 and 3, front furnace wall 5, rear furnace wall 6, and boiler drum 7 is filled. The cold water in this space mainly exchanges heat with the high-temperature flue gas through the heat exchange surfaces of the inner plastic arc plate 2, the second pass flue 13, and the third pass flue 14, causing the cold water temperature to rise, and finally discharged through the outlet pipe seat.

[0045] In addition, during boiler operation, the water in the high-temperature zone heats up rapidly and shows an upward trend, forming a natural circulation with the water in the relatively low-temperature zone.

[0046] Importantly, the reinforcing groove 4 not only strengthens the structural strength of the inner plastic arc plate 2 and the outer plastic arc plate 3, but also increases the heat exchange area between cold water and high-temperature flue gas during the heat exchange process, thereby further improving the heat exchange efficiency.

[0047] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A novel boiler structure, characterized in that, include: Container (1); Two inner plastic arc plates (2) are provided and symmetrically arranged on both sides of the width direction of the header (1). The two inner plastic arc plates (2) are arranged to protrude in an arc shape in opposite directions. Two outer plastic arc plates (3) are provided and symmetrically arranged on both sides of the width direction of the header (1). The two outer plastic arc plates (3) are arranged in an arc shape protruding in opposite directions. The two outer plastic arc plates (3) are respectively located on the radial outer side of the two inner plastic arc plates (2). The outer plastic arc plates (3) and the corresponding inner plastic arc plates (2) are spaced apart. Both the inner plastic arc plates (2) and the outer plastic arc plates (3) are provided with reinforcing grooves (4).

2. The novel boiler structure as described in claim 1, characterized in that, The inner plastic arc plate (2) is provided with a plurality of reinforcing grooves (4), and the reinforcing grooves (4) are arranged in sequence at intervals along the length direction of the header (1); the outer plastic arc plate (3) is provided with a plurality of reinforcing grooves (4), and the reinforcing grooves (4) are arranged in sequence at intervals along the length direction of the header (1).

3. The novel boiler structure as described in claim 1, characterized in that, Along the radial direction of the inner plastic arc plate (2), each of the reinforcing grooves (4) is provided to protrude radially outward; Along the radial direction of the outer plastic arc plate (3), each of the reinforcing grooves (4) is provided to protrude radially outward.

4. The novel boiler structure as described in claim 1, characterized in that, The inner plastic arc plate (2) and the outer plastic arc plate (3) are arranged concentrically.

5. The novel boiler structure as described in claim 1, characterized in that, The new boiler structure also includes a front furnace wall (5), which is fixedly installed on one side of the header (1) along its length. The front furnace wall (5) includes an inner front furnace wall and an outer front furnace wall, which are spaced apart along the length of the header (1). The inner plastic arc plate (2) is fixedly connected to the inner front furnace wall, and the outer plastic arc plate (3) is fixedly connected to the outer front furnace wall.

6. The novel boiler structure as described in claim 5, characterized in that, The new boiler structure also includes a rear furnace wall (6), which is fixedly installed on the other side of the length direction of the header (1). The rear furnace wall (6) includes an inner rear furnace wall and an outer rear furnace wall. Along the length direction of the header (1), the inner rear furnace wall and the outer rear furnace wall are spaced apart. The inner plastic arc plate (2) is fixedly connected to the inner rear furnace wall, and the outer plastic arc plate (3) is fixedly connected to the outer rear furnace wall.

7. The novel boiler structure as described in claim 6, characterized in that, The new boiler structure also includes a boiler drum (7), which is connected to the inner plastic arc plate (2), the outer plastic arc plate (3), the front furnace wall (5), and the rear furnace wall (6); Along the length of the header (1), the boiler drum (7) located between the inner front furnace wall and the outer front furnace wall is provided with a front through hole, which connects the boiler drum (7) and the front furnace wall (5). Along the length of the header (1), the boiler drum (7) located between the inner rear furnace wall and the outer rear furnace wall is provided with a rear through hole, which connects the boiler drum (7) and the rear furnace wall (6). Along the radial direction of the outer plastic arc plate (3), the pot drum (7) located between the inner plastic arc plate (2) and the outer plastic arc plate (3) has a pot drum through hole, which connects the space between the inner plastic arc plate (2) and the outer plastic arc plate (3) and the pot drum (7).

8. The novel boiler structure as described in claim 1, characterized in that, The inner plastic arc plate (2) and the outer plastic arc plate (3) are both connected to the collection box (1). Along the width direction of the collection box (1), the collection box (1) located between the inner plastic arc plate (2) and the outer plastic arc plate (3) is provided with a collection box through hole. The collection box through hole connects the space between the inner plastic arc plate (2) and the outer plastic arc plate (3) and the collection box (1).

9. The novel boiler structure as described in claim 7, characterized in that, The new boiler structure also includes a front tube sheet (8), a front smoke box door (9), a rear lower tube sheet (10), a rear upper tube sheet (11), a connecting plate (12), a second return smoke pipe (13), and a third return smoke pipe (14). The front smoke box door (9) and the front tube plate (8) are both connected to the boiler drum (7). Along the length direction of the header (1), the front smoke box door (9) and the front tube plate (8) are spaced apart, and the front smoke box (15) is surrounded between the front smoke box door (9), the front tube plate (8) and the boiler drum (7). The lower rear tube sheet (10) and the upper rear tube sheet (11) are both fixed to the boiler drum (7), and the lower rear tube sheet (10) and the upper rear tube sheet (11) are spaced apart along the length of the header (1). The connecting plate (12) seals and connects the lower rear tube sheet (10) and the upper rear tube sheet (11). A combustion chamber (16) is provided between the connecting plate (12), the lower rear tube sheet (10), and the rear furnace wall (6). The second return flue (13) and the third return flue (14) are both located inside the boiler drum (7). One end of the second return flue (13) is connected to the combustion chamber (16), and the other end is connected to the front smoke box (15). One end of the third return flue (14) is connected to the front smoke box (15), and the other end passes through the rear upper tube plate (11) to form a smoke exhaust port (18).

10. The novel boiler structure as described in claim 9, characterized in that, A furnace chamber (17) is provided between the boiler drum (7), the front furnace wall (5), the rear furnace wall (6), the header (1), and the inner plastic arc plate (2), and the furnace chamber (17) is connected to the combustion chamber (16).

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