Bearing device facilitating assembly of glass fiber reinforced plastic inner cylinder and chimney

Abstract

The utility model provides a bearing device facilitating assembly of a glass fiber reinforced plastic inner cylinder and a chimney, and belongs to the technical field of steel chimneys. According to the technical scheme, the reinforcing structure is characterized by comprising a supporting structure fixed to the inner wall of a steel outer cylinder, a bearing ring structure fixed to the outer wall of a glass fiber reinforced plastic inner cylinder and erected on the supporting structure, and a reinforcing boss fixed to the outer wall of the glass fiber reinforced plastic inner cylinder and located above the bearing ring structure; the glass fiber reinforced plastic inner cylinder has the technical effects that the glass fiber reinforced plastic inner cylinder can be pushed into the steel outer cylinder during assembly, the bearing ring structure is erected on the supporting structure and is attached to the supporting structure, the supporting structure plays a role in bearing, and the glass fiber reinforced plastic inner cylinder is hung in the steel outer cylinder through the bearing ring structure and the supporting structure; the assembly difficulty of the sleeve chimney adopting the glass fiber reinforced plastic inner cylinder is reduced; the load of the glass fiber reinforced plastic inner cylinder is transmitted to the steel outer cylinder through the supporting structure, and the overall stability of the chimney is improved.

Description

Technical Field

[0001] This utility model relates to the field of steel chimney technology, and in particular to a load-bearing device and chimney that facilitates the assembly of a fiberglass inner cylinder. Background Technology

[0002] Chimney inner cylinders are typically made of stainless steel or fiberglass. When stainless steel or other metals are used for the inner cylinder, the material is isotropic, the manufacturing process is mature, and the tensile, compressive, and bending mechanical properties are similar. Generally, the load is transferred from the inner cylinder to the outer cylinder by bottom support.

[0003] From the perspective of corrosion resistance and economic performance, fiberglass inner cylinders offer a high cost-performance ratio. However, when fiberglass is used for the inner cylinder, the material is anisotropic and is formed by hand lay-up of resin and glass fiber. The mechanical properties along the fiber direction and perpendicular to the fiber direction differ greatly. In addition, different workers use different hand lay-up methods, resulting in significant differences in mechanical properties. This makes it impossible to use conventional bottom-bearing methods for fiberglass inner cylinders, which brings great trouble to the assembly of sleeve chimneys using fiberglass inner cylinders. Utility Model Content

[0004] The purpose of this utility model is to provide a load-bearing device and chimney with an easy-to-assemble fiberglass inner cylinder, which has the advantage of reducing the assembly difficulty of the sleeve chimney with a fiberglass inner cylinder.

[0005] To achieve the above and other related objectives, this utility model provides the following technical solution:

[0006] A load-bearing device for easy assembly of a fiberglass inner cylinder includes a support structure fixed to the inner wall of a steel outer cylinder, a load-bearing ring structure fixed to the outer wall of the fiberglass inner cylinder and erected on the support structure, and a reinforcing boss fixed to the outer wall of the fiberglass inner cylinder and located above the load-bearing ring structure.

[0007] In one embodiment of the present invention, the load-bearing ring structure includes two load-bearing half-rings and a fastener connecting the two load-bearing half-rings so that the two load-bearing half-rings are clamped onto the fiberglass inner cylinder.

[0008] In one embodiment of the present invention, the load-bearing semi-ring includes an arc-shaped load-bearing frame and two fixing plates respectively fixed at both ends of the arc-shaped load-bearing frame.

[0009] In one embodiment of this utility model, a plurality of reinforcing ribs are fixedly provided inside the arc-shaped load-bearing frame.

[0010] In one embodiment of the present invention, the arc-shaped load-bearing frame includes a lower arc plate, an upper arc plate located on the lower arc plate, and two side arc plates respectively connected to the upper arc plate and the lower arc plate.

[0011] In one embodiment of this utility model, the fixing plate has a rectangular structure.

[0012] In one embodiment of this utility model, the fixing plate has a trapezoidal structure.

[0013] This utility model also provides a chimney for assembling a fiberglass inner cylinder, including a steel outer cylinder, a fiberglass inner cylinder assembled inside the steel outer cylinder, and the aforementioned load-bearing device, wherein the load-bearing device is installed on the fiberglass inner cylinder.

[0014] As described above, the load-bearing device and chimney of this utility model, which facilitates the assembly of a fiberglass inner cylinder, have the following beneficial effects:

[0015] 1. During assembly, the fiberglass inner cylinder can be pushed into the steel outer cylinder. The load-bearing ring structure is erected on the support structure and fits snugly against the support structure. The support structure plays a load-bearing role. The fiberglass inner cylinder is suspended in the steel outer cylinder through the load-bearing ring structure and the support structure, which reduces the assembly difficulty of the sleeve chimney using the fiberglass inner cylinder; and the load of the fiberglass inner cylinder is transferred to the steel outer cylinder through the support structure, improving the overall stability of the chimney.

[0016] 2. A reinforcing boss is provided on the outer wall of the fiberglass inner cylinder located above the load-bearing ring structure. The reinforcing boss is used to increase the wall thickness of the fiberglass, thereby increasing the local load-bearing capacity.

[0017] 3. The load-bearing ring structure includes two load-bearing half-rings and fasteners. The two load-bearing half-rings can be clamped onto the fiberglass inner cylinder by the fasteners. The load-bearing ring structure adopts a split design, which is convenient for installation and adjustment and reduces the difficulty of construction. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;

[0019] Figure 2 yes Figure 1 Enlarged diagram of part A in the middle;

[0020] Figure 3 This is a schematic diagram of the load-bearing ring structure of Embodiment 1 of this utility model;

[0021] Figure 4 This is a structural schematic diagram of the arc-shaped load-bearing frame of Embodiment 1 of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the fixing plate in Embodiment 2 of this utility model;

[0023] Figure 6 This is a schematic diagram of the overall structure of Embodiment 3 of this utility model.

[0024] Reference numerals in the attached drawings: 1. Support structure; 2. Load-bearing ring structure; 3. Reinforcing boss; 4. Load-bearing half ring; 5. Fastener; 6. Arc-shaped load-bearing frame; 7. Fixing plate; 8. Reinforcing rib; 9. Lower arc plate; 10. Upper arc plate; 11. Side arc plate; 12. Steel outer cylinder; 13. Fiberglass inner cylinder. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0026] Please see Figures 1 to 6 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0027] Example 1

[0028] Please see Figure 1 and Figure 2 This utility model provides a load-bearing device for easy assembly of fiberglass inner cylinders, including a support structure 1, a load-bearing ring structure 2, and a reinforcing boss 3.

[0029] The support structure 1 is fixedly installed on the inner wall of the steel outer cylinder 12, and can be fixed by welding or bolt connection; wherein the support structure 1 is arranged in a ring or segmented manner, and is used to bear the entire load of the fiberglass inner cylinder 13 and transfer it to the steel outer cylinder 12.

[0030] Please see Figure 3 and Figure 4 The load-bearing ring structure 2 is fixed on the outer wall of the fiberglass inner cylinder 13 and erected on the support structure 1, so that the fiberglass inner cylinder 13 is suspended inside the steel outer cylinder 12.

[0031] The load-bearing ring structure 2 in this embodiment includes two load-bearing half-rings 4 and a fixing member 5. The two load-bearing half-rings 4 are connected by the fixing member 5 to form a ring structure and are clamped to the outer wall of the fiberglass inner cylinder 13. The fixing member 5 in this embodiment can be a fixing bolt and a fixing nut.

[0032] Each load-bearing semi-ring 4 includes an arc-shaped load-bearing frame 6 and two fixing plates 7. The two fixing plates 7 are welded to both ends of the arc-shaped load-bearing frame 6. In this embodiment, the fixing plates 7 are provided with several connecting holes. Fixing bolts and nuts can be used to fix the two fixing plates 7 together by cooperating with the connecting holes, thereby fixing the two load-bearing semi-rings 4 into a ring structure load-bearing ring structure 2. In this embodiment, the fixing plates 7 can be rectangular structures.

[0033] Please see Figure 3 and Figure 4 The arc-shaped load-bearing frame 6 has several vertically welded reinforcing ribs 8 inside, which are used to improve the strength of the arc-shaped load-bearing frame 6 structure. The arc-shaped load-bearing frame 6 includes a lower arc plate 9, an upper arc plate 10 located on the lower arc plate 9, and two side arc plates 11 respectively connected to the upper arc plate 10 and the lower arc plate 9. The lower arc plate 9, the upper arc plate 10 and the two side arc plates 11 are welded and fixed together.

[0034] Please see Figure 1 The reinforcing boss 3 is fixed on the outer wall of the fiberglass inner cylinder 13 and located above the load-bearing ring structure 2. In this embodiment, the reinforcing boss 3 is made of glass fiber reinforced resin material and is integrally formed with the fiberglass inner cylinder 13 by hand lay-up process to increase the local wall thickness and increase the local load-bearing capacity.

[0035] Example 2

[0036] Please see Figure 5 In this embodiment, the fixing plate 7 can be a trapezoidal structure.

[0037] Example 3

[0038] Please see Figure 6 This embodiment also provides a chimney for assembling a fiberglass inner cylinder, including a steel outer cylinder 12, a fiberglass inner cylinder 13, and a load-bearing device as described above. The load-bearing device is installed on the fiberglass inner cylinder 13. The steel outer cylinder 12 is made of metal (such as carbon steel or stainless steel), and a support structure 1 is welded to its inner wall to support the fiberglass inner cylinder 13. The fiberglass inner cylinder 13 is made of fiber-reinforced resin material, and a load-bearing ring structure 2 and a reinforcing boss 3 are installed on its outer wall. The fiberglass inner cylinder 13 is suspended on the support structure 1 through the load-bearing ring structure 2 to avoid stress concentration problems caused by the anisotropy of fiberglass material.

[0039] Assembly method:

[0040] 1. First, weld the support structure 1 onto the inner wall of the steel outer cylinder 12;

[0041] 2. Reinforcing bosses 3 are prefabricated on the outer wall of the fiberglass inner cylinder 13 to enhance local strength;

[0042] 3. The two load-bearing semi-rings 4 are engaged with the outer wall of the fiberglass inner cylinder 13 and fastened with fasteners 5 to form a complete load-bearing ring structure 2.

[0043] 4. Hoist the fiberglass inner cylinder 13 into the steel outer cylinder 12, so that the load-bearing ring structure 2 is stably erected on the support structure 1, and the installation is completed.

[0044] In summary, this invention, through the cooperation of the load-bearing ring structure 2 and the support structure 1, fixes the fiberglass inner cylinder 13 in a suspended manner, avoiding stress concentration caused by bottom load and improving structural stability. Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0045] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A load-bearing device for easy assembly of a fiberglass inner cylinder, characterized in that: It includes a support structure (1) fixed on the inner wall of the steel outer cylinder (12), a load-bearing ring structure (2) fixed on the outer wall of the fiberglass inner cylinder (13) and erected on the support structure (1), and a reinforcing boss (3) fixed on the outer wall of the fiberglass inner cylinder (13) and located above the load-bearing ring structure (2).

2. The load-bearing device for easy assembly of a fiberglass inner cylinder according to claim 1, characterized in that: The load-bearing ring structure (2) includes two load-bearing half-rings (4) and a fastener (5) that connects the two load-bearing half-rings (4) so ​​that the two load-bearing half-rings (4) are clamped on the fiberglass inner cylinder (13).

3. The load-bearing device for easy assembly of a fiberglass inner cylinder according to claim 2, characterized in that: The load-bearing semi-ring (4) includes an arc-shaped load-bearing frame (6) and two fixing plates (7) respectively fixed at both ends of the arc-shaped load-bearing frame (6).

4. The load-bearing device for easy assembly of a fiberglass inner cylinder according to claim 3, characterized in that: The arc-shaped load-bearing frame (6) is fixedly provided with several reinforcing ribs (8).

5. The load-bearing device for facilitating the assembly of a fiberglass inner cylinder according to claim 3, characterized in that: The arc-shaped load-bearing frame (6) includes a lower arc plate (9), an upper arc plate (10) located on the lower arc plate (9), and two side arc plates (11) respectively connected to the upper arc plate (10) and the lower arc plate (9).

6. The load-bearing device for easy assembly of a fiberglass inner cylinder according to claim 3, characterized in that: The fixing plate (7) has a rectangular structure.

7. The load-bearing device for easy assembly of a fiberglass inner cylinder according to claim 3, characterized in that: The fixing plate (7) has a trapezoidal structure.

8. A chimney for assembling a fiberglass inner cylinder, comprising a steel outer cylinder (12) and a fiberglass inner cylinder (13) assembled inside the steel outer cylinder (12); characterized in that: It also includes the load-bearing device as described in any one of claims 1-7, wherein the load-bearing device is mounted on the fiberglass inner cylinder (13).

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