Rigid beam assembly for biomass water-cooled vibrating grate boiler

Abstract

The utility model relates to a rigid beam assembly for a biomass water-cooled vibration grate boiler, which comprises a connecting piece, the biomass water-cooled vibration grate boiler comprises a water-cooled wall, rigid beams transversely extend and are connected to the water-cooled wall through the connecting piece, and a frame surrounding the water-cooled wall is defined by the adjacent rigid beams; at the matched butt joint position, the insertion opening in the first beam body is in butt joint with the corresponding bell mouth in the second beam body, and the rigid beam with the complete web is formed; the reinforcing beam has the advantages that the reinforcing beam is arranged on the water-cooled wall of the boiler and used for enhancing the strength of the water-cooled wall, the reinforcing beam can form a frame structure, deformation of the water-cooled wall is further limited, and the service life of the water-cooled wall is prolonged. Destructive deformation of the water cooling wall during use is avoided, and the service life of the boiler is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass water-cooled vibrating grate boilers, in particular to a rigid beam component used for biomass water-cooled vibrating grate boilers. Background Art

[0002] The biomass water-cooled vibrating grate boiler is an important component of the biomass direct-fired boiler. The pressure, wind load and seismic force in the furnace act on the water-cooled wall of the furnace. The strength of the water-cooled wall must ensure that the water-cooled wall does not deform when the pressure in the boiler changes due to various factors such as the negative pressure in the furnace, the positive pressure of the furnace explosion and the accidental tripping of the induced / forced draft fan.

[0003] Therefore, this type of boiler has certain requirements for the furnace rigidity to ensure that the boiler water-cooled wall will not be damaged under its own weight, deflagration, earthquake, negative pressure in the furnace, natural wind pressure, pulsating load and other loads, especially in the case of deflagration, to ensure that this type of boiler has a normal service life.

[0004] The utility model aims to provide a rigid beam component for a biomass water-cooled vibrating grate boiler to enhance the rigidity of the water-cooled wall of the boiler. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a rigid beam assembly for a biomass water-cooled vibrating grate boiler to improve the rigidity of the water-cooled wall of the boiler.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0009] In the first aspect, the utility model provides a rigid beam assembly for a biomass water-cooled vibrating grate boiler, including a connecting piece, a plurality of rigid beams extending transversely and connected to the water-cooled wall of the biomass water-cooled vibrating grate boiler through the connecting piece, and adjacent rigid beams form a frame surrounding the water-cooled wall; the rigid beam includes a first beam body and a second beam body, and the side walls adjacent to the first beam body and the second beam body are provided with a socket and a socket, the rigid beam can be switched from a matching docking position to a staggered docking position, and the first beam body and the second beam body are fixedly connected to each other and connected to the water-cooled wall; in the matching docking position, the socket on the first beam body is connected to the corresponding socket on the second beam body to form a rigid beam with a complete web; in the staggered docking position, the socket on the first beam body is connected to the corresponding socket on the second beam body to form a rigid beam with a hollow web.

[0010] In a technical solution of the utility model, the rigid beam is an H-shaped beam, and the rigid beam can be cut from the middle of the web to form a first beam body and a second beam body.

[0011] In a technical solution of the utility model, when the rigid beam is in the offset docking position, the corresponding sockets on the first beam body and the second beam body form a regular hexagonal through hole.

[0012] In a technical solution of the utility model, the connecting member includes an upper clamping plate and a lower clamping plate connected to the water-cooled wall, an assembly space is formed between the upper clamping plate and the lower clamping plate, and the rigid beam is installed in the assembly space.

[0013] In a technical solution of the utility model, the rigid beam can slide vertically in the assembly space to adapt to the thermal expansion and contraction conditions of the water-cooled wall.

[0014] In a technical solution of the utility model, connecting holes are opened on the webs near both ends of the rigid beam, and the connecting parts include a connecting beam and a connecting ear. The connecting beam passes through the connecting hole and is slidably connected to the connecting hole. The connecting ear is connected to the water-cooled wall, and the connecting ear is fixedly connected to the connecting beam.

[0015] In a technical solution of the utility model, the connecting beam further comprises a connecting rod and angle plates connected to both ends of the connecting rod in the length direction, and the angle plates are fixedly connected to the connecting ears.

[0016] In a technical solution of the utility model, the rigid beam further includes a reinforcing plate, which is arranged on both sides of the web of the rigid beam corresponding to the position of the connecting hole and leaves the connecting hole.

[0017] In a technical solution of the utility model, the rigid beam further comprises reinforcing ribs capable of connecting the first beam body and the second beam body; the reinforcing ribs comprise vertically extending first rib plates and / or obliquely extending second rib plates.

[0018] In a technical solution of the utility model, the biomass water-cooled vibrating grate boiler further includes a pipeline, and the pipeline can pass through the through hole.

[0019] (III) Beneficial effects

[0020] The beneficial effects of the utility model are as follows: the rigid beam assembly of the utility model for a biomass water-cooled vibrating grate boiler, the rigid beam is arranged on the water-cooled wall of the boiler, for strengthening the strength of the water-cooled wall, and the rigid beam can form a frame structure, thereby further limiting the deformation of the water-cooled wall, avoiding destructive deformation of the water-cooled wall during use, and improving the service life of the boiler.

[0021] The rigid beam itself is not a solid beam body. It is formed by splicing the first beam body and the second beam body. When the rigid beam is in the matching docking position and is put into use, the web formed by the docking of the first beam body and the second beam body will be hollowed out. While reducing the curb weight of the rigid beam, it will not have a significant impact on the rigidity of the rigid beam itself, thereby reducing the deadweight damping of the rigid beam, which will result in less noise when the boiler is running.

[0022] After the first beam body and the second beam body are staggered and connected, a rigid beam with increased height will be formed. This can increase the cross-sectional height of the rigid beam without increasing the amount of the rigid beam, thereby improving the bending strength and bearing capacity of the rigid beam, and can also increase the reinforcement height of the rigid beam on the water-cooled wall, thereby further improving the reinforcement effect of the rigid beam on the water-cooled wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is one of the structural schematic diagrams of the utility model for a biomass water-cooled vibrating grate boiler and a rigid beam;

[0024] Figure 2 For this utility model Figure 1 A schematic diagram of the local enlarged structure at F in the middle;

[0025] Figure 3 This is the second structural schematic diagram of the utility model for a biomass water-cooled vibrating grate boiler and a rigid beam;

[0026] Figure 4 It is a schematic diagram of the top view of the structure of the jointing position of the rigid beam of the utility model;

[0027] Figure 5 This is one of the schematic diagrams of the top view of the staggered docking position of the rigid beam of the utility model;

[0028] Figure 6 The second schematic diagram of the top view of the staggered docking position of the rigid beam of the utility model;

[0029] Figure 7 It is a schematic diagram of the main structure of the staggered docking position of the rigid beam of the utility model.

[0030] [Description of Reference Numerals]

[0031] 1: Connecting piece; 11: Upper cardboard; 12: Lower cardboard; A: Assembly space; 13: Connecting beam; 131: Connecting rod; 132: Angle plate; 14: Connecting ear;

[0032] 2: Water-cooled wall;

[0033] 3: rigid beam; 31: first beam body; 32: second beam body; 301: socket; 302: socket; B: connecting hole; C: through hole; 33: reinforcing plate; 34: reinforcing rib. DETAILED DESCRIPTION

[0034] In order to better explain the present invention and facilitate understanding, the following Figure 1-7 , the utility model is described in detail through specific implementation methods. Among them, the directional nouns such as "upper" and "lower" mentioned in this article are Figure 1 The orientation is used as a reference.

[0035] Embodiment 1:

[0036] Reference Figure 1-Figure 7 The embodiment of the utility model provides a rigid beam assembly for a biomass water-cooled vibrating grate boiler, comprising a connecting member 1, the biomass water-cooled vibrating grate boiler comprising a water-cooled wall 2, a plurality of rigid beams 3 extending transversely and connected to the water-cooled wall 2 through the connecting member 1, and adjacent rigid beams 3 forming a frame surrounding the water-cooled wall 2; the rigid beam 3 comprises a first beam body 31 and a second beam body 32, and the side walls adjacent to the first beam body 31 and the second beam body 32 are provided with a socket 301 and a socket 302, the rigid beam 3 can be switched from a matching docking position to a misaligned docking position, and the first beam body 31 and the second beam body 32 are fixedly connected to each other and connected to the water-cooled wall 2; in the matching docking position, the socket 301 on the first beam body 31 is connected to the corresponding socket 302 on the second beam body 32 to form a rigid beam 3 with a complete web; in the misaligned docking position, the socket 301 on the first beam body 31 is connected to the corresponding socket 301 on the second beam body 32 to form a rigid beam 3 with a hollow web.

[0037] In this technical solution, the rigid beam 3 is arranged on the boiler water-cooled wall 2 to strengthen the strength of the water-cooled wall 2, and the rigid beam 3 can form a frame structure, thereby further limiting the deformation of the water-cooled wall 2, avoiding destructive deformation of the water-cooled wall 2 during use, and improving the service life of the boiler.

[0038] The rigid beam 3 itself is not a solid beam body, and is formed by splicing the first beam body 31 and the second beam body 32. When the rigid beam 3 is in the matching docking position and is put into use, the web formed by the docking of the first beam body 31 and the second beam body 32 will be hollowed out, which will reduce the curb weight of the rigid beam 3 without having a significant impact on the rigidity of the rigid beam 3 itself, thereby reducing the deadweight damping of the rigid beam 3, and making less noise when the boiler is running.

[0039] Specifically, the rigid beam 3 formed by the first beam body 31 and the second beam body 32 includes a web in the middle and upper and lower flanges at both ends.

[0040] When the rigid beam 3 is in the staggered docking position, the corresponding sockets 302 on the first beam body 31 and the second beam body 32 form a regular hexagonal through hole C. The hexagonal through hole C can effectively ensure the strength of the rigid beam 3 while reducing the curb weight of the rigid beam 3. At the same time, the hexagonal hole can be processed by continuous cutting, and the processing convenience is also good, which is conducive to controlling the overall production cost of the rigid beam 3.

[0041] Specifically, after the first beam body 31 and the second beam body 32 are staggered and spliced, the two ends of the rigid beam 3 formed in the length direction should be flush, and the flushness can be ensured by cutting.

[0042] The rigid beam 3 is an H-shaped beam, and the rigid beam 3 can be cut from the middle of the web to form a first beam body 31 and a second beam body 32 .

[0043] In this embodiment, when the first beam body 31 and the second beam body 32 are in the matching docking position, the rigid beam 3 itself is an integral structure, and the first beam body 31 and the second beam body 32 will be formed after cutting. The first beam body 31 and the second beam body 32 will form a rigid beam 3 with increased height after the offset docking. If the first beam body 31 and the second beam body 32 are connected by welding, the cross-sectional height of the rigid beam 3 can be increased without increasing the amount of the rigid beam 3, thereby improving the bending strength and bearing capacity of the rigid beam 3, and the reinforcement height of the rigid beam 3 on the water-cooled wall 2 can also be increased, thereby further improving the reinforcement effect of the rigid beam 3 on the water-cooled wall 2.

[0044] The connecting member 1 includes an upper clamping plate 11 and a lower clamping plate 12 connected to the water-cooled wall 2 . An assembly space A is formed between the upper clamping plate 11 and the lower clamping plate 12 . The rigid beam 3 is installed in the assembly space A.

[0045] The rigid beam 3 is provided with connection holes B on the webs near both ends. The connecting member 1 includes a connection beam 13 and a connection ear 14. The connection beam 13 passes through the connection hole B and is slidably connected to the connection hole B. The connection ear 14 is connected to the water-cooled wall 2 and is fixedly connected to the connection beam 13.

[0046] The connecting beam 13 further includes a connecting rod 131 and angle plates 132 connected to both ends of the connecting rod 131 in the length direction. The angle plates 132 are fixedly connected to the connecting ears 14 .

[0047] The rigid beam 3 can slide vertically in the assembly space A to adapt to the thermal expansion and contraction conditions of the water-cooled wall 2 .

[0048] In this embodiment, there are two levels of connection between the rigid beam 3 and the water-cooled wall 2. One is through the connecting beam 13 that passes through the webs at both ends of the rigid beam 3. The connecting beam 13 can slide in the connecting hole B of the web, and the connecting beam 13 extends vertically; the second is to realize the connection of the rigid beam 3 through the upper clamping plate 11 and the lower clamping plate 12. Both of these connection methods allow the rigid beam 3 to have a certain vertical floating range relative to the water-cooled wall 2. In this way, when the water-cooled wall 2 expands or contracts due to thermal expansion and contraction, causing elongation or shortening, the rigid beam 3 will not interfere with the dynamics of the water-cooled wall 2, thereby further improving the reinforcement effect of the rigid beam 3 on the water-cooled wall 2.

[0049] Specifically, the upper clamping plate 11 and the lower clamping plate 12 can be configured as L-shaped plates, and the two and the water-cooled wall 2 enclose an assembly space A.

[0050] More specifically, the upper clamping plate 11 and the lower clamping plate 12 are arranged at intervals along the length direction of the rigid beam 3 so that the assembly space A is continuously arranged and matches the assembly requirements of the rigid beam 3 .

[0051] The connecting beam 13 further includes a connecting rod 131 and angle plates 132 connected to both ends of the connecting rod 131 in the length direction. The angle plates 132 are fixedly connected to the connecting ears 14 so that the connecting beam 13 as a whole is also an H-shaped beam.

[0052] The rigid beam 3 also includes a reinforcing plate 33, which is arranged on both sides of the web of the rigid beam 3 corresponding to the position of the connecting hole B, and leaves the connecting hole B to improve the web strength at the position of the connecting hole B and reduce the negative impact of the opening of the connecting hole B on the strength reduction of the rigid beam 3.

[0053] At the same time, the rigid beam 3 also includes a reinforcing rib 34 that can connect the first beam body 31 and the second beam body 32; the reinforcing rib 34 includes a first rib plate extending vertically and / or a second rib plate extending obliquely. By providing the reinforcing rib 34, the overall strength of the rigid beam 3 can be further improved, the defect of insufficient shear bearing capacity after the web plate is opened with the hole C can be compensated, and the local buckling of the web plate can be avoided, thereby ensuring its reinforcing effect on the water-cooled wall 2.

[0054] The biomass water-cooled vibrating grate boiler further comprises a pipe, and the pipe can pass through the through hole C.

[0055] In this embodiment, the through hole C on the web of the rigid beam 3 can be used to pass through various pipes, wires, and some static structures with moderate load and volume of this type of boiler, such as platform support columns, pipeline air ducts, steam pipes, water pipes, exhaust pipes, flue hangers, etc., so that the through hole C not only has the function of reducing weight, but also provides a giving way function, thereby improving the adaptability of the rigid beam 3 to the assembly scene.

[0056] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0059] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0060] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A rigid beam assembly for a biomass water-cooled vibrating grate boiler, characterized in that: It comprises a connecting member (1), a plurality of rigid beams (3) extending transversely and connected to a water-cooled wall (2) of the biomass water-cooled vibrating grate boiler through the connecting member (1), and adjacent rigid beams (3) forming a frame surrounding the water-cooled wall (2); The rigid beam (3) comprises a first beam body (31) and a second beam body (32), and the side walls of the first beam body (31) and the second beam body (32) adjacent to each other are provided with a socket (301) and a socket (302), and the rigid beam (3) can be switched from a matching docking position to a misaligned docking position, and the first beam body (31) and the second beam body (32) are fixedly connected to each other and then connected to the water-cooled wall (2); When in the matching docking position, the socket (301) on the first beam body (31) is connected to the corresponding socket (302) on the second beam body (32) to form the rigid beam (3) with a complete web; when in the offset docking position, the socket (301) on the first beam body (31) is connected to the corresponding socket (301) on the second beam body (32) to form the rigid beam (3) with a hollow web.

2. The rigid beam assembly for a biomass water-cooled vibrating grate boiler according to claim 1, characterized in that: The rigid beam (3) is an H-shaped beam, and after the rigid beam (3) is cut from the middle of the web, the first beam body (31) and the second beam body (32) can be formed.

3. The rigid beam assembly for a biomass water-cooled vibrating grate boiler according to claim 2, characterized in that: When the rigid beam (3) is in the offset docking position, the corresponding sockets (302) on the first beam body (31) and the second beam body (32) form a regular hexagonal through hole (C).

4. The rigid beam assembly for a biomass water-cooled vibrating grate boiler according to claim 3, characterized in that: The biomass water-cooled vibrating grate boiler further comprises a pipe, which is capable of passing through the through hole (C).

5. The rigid beam assembly for a biomass water-cooled vibrating grate boiler according to any one of claims 1 to 4, characterized in that: The connecting member (1) comprises an upper card plate (11) and a lower card plate (12) connected to the water-cooled wall (2), an assembly space (A) is formed between the upper card plate (11) and the lower card plate (12), and the rigid beam (3) is installed in the assembly space (A).

6. The rigid beam assembly for a biomass water-cooled vibrating grate boiler according to claim 5, characterized in that: The rigid beam (3) is capable of vertically sliding in the assembly space (A) to adapt to the thermal expansion and contraction conditions of the water-cooled wall (2).

7. The rigid beam assembly for a biomass water-cooled vibrating grate boiler according to claim 6, characterized in that: The rigid beam (3) is provided with connection holes (B) on the webs near both ends, the connection member (1) comprises a connection beam (13) and a connection ear (14), the connection beam (13) passes through the connection hole (B) and is slidably connected to the connection hole (B), the connection ear (14) is connected to the water-cooled wall (2), and the connection ear (14) is fixedly connected to the connection beam (13).

8. The rigid beam assembly for a biomass water-cooled vibrating grate boiler according to claim 7, characterized in that: The connecting beam (13) further comprises a connecting rod (131) and angle plates (132) connected to both ends of the connecting rod (131) in the length direction, and the angle plates (132) are fixedly connected to the connecting ears (14).

9. The rigid beam assembly for a biomass water-cooled vibrating grate boiler according to claim 7 or 8, characterized in that: The rigid beam (3) further comprises a reinforcing plate (33), wherein the reinforcing plate (33) is arranged on both sides of the web of the rigid beam (3) corresponding to the position of the connecting hole (B) and leaves the connecting hole (B) in place.

10. The rigid beam assembly for a biomass water-cooled vibrating grate boiler according to claim 1, characterized in that: The rigid beam (3) further comprises a reinforcing rib (34) capable of connecting the first beam body (31) and the second beam body (32); The reinforcing ribs (34) include a first rib plate extending vertically and / or a second rib plate extending obliquely.

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