Connecting device for inner cylinder and outer cylinder of sleeve type steel chimney

Abstract

The utility model provides a sleeve type steel chimney inner and outer barrel connecting device which is applied to the technical field of steel chimneys and is characterized by comprising an inner barrel and an outer barrel arranged outside the inner barrel in a sleeving mode. A supporting frame is fixedly arranged on the inner wall of the outer cylinder, and a supporting groove is formed in the supporting frame; the outer wall of the inner cylinder is fixedly provided with a shake stopping rod erected in the supporting groove, and the shake stopping rod is in clearance fit with the supporting groove. The device has the technical effects that the shake stopping rod is in clearance connection with the supporting groove, so that a movable clearance is formed between the inner barrel and the outer barrel; even under the action of wind vibration, the problem that the local stress of an inner cylinder (the root of a shake-stopping structure) in a traditional inner cylinder and outer cylinder connecting structure is increased, and consequently the inner cylinder is damaged is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel chimneys, in particular to a connecting device for the inner and outer cylinders of a sleeve-type steel chimney. Background Art

[0002] At present, the inner and outer cylinders of the sleeve self-standing steel chimneys produced and manufactured usually have a relatively small distance between them; for the anti-sway of the inner cylinder in this form, the anti-sway structure is directly welded on the outer wall of the inner cylinder, leaving a distance of 10 mm between the outer cylinder and the inner cylinder, and the anti-sway distance of the inner cylinder is relatively small; therefore, under the action of wind vibration, the local stress of the anti-sway structure on the inner cylinder is also relatively small;

[0003] With the development of society and for the purpose of realizing certain functions between the inner and outer cylinders of the sleeve self-standing steel chimney; there have emerged many projects in the market that require sleeve self-standing steel chimneys with a relatively large distance between the inner and outer cylinders; if the distance between the inner and outer cylinders is now relatively large and the above-mentioned method is still used to connect the anti-sway structure, the anti-sway distance of the inner cylinder will become very large; at this time, under the action of wind vibration, the local stress of the anti-sway structure on the inner cylinder will become very large; and the inner cylinder is usually only used as an anti-corrosion structure of the chimney, and its thickness selection is usually very thin, so the local part of the inner cylinder will be damaged, affecting the anti-corrosion performance of the inner cylinder.

[0004] Therefore, the existing connection form of the inner and outer cylinders cannot meet the projects of the sleeve self-standing steel chimneys with a relatively large distance between the inner and outer cylinders. Content of the Utility Model

[0005] The purpose of the utility model is to provide a connecting device for the inner and outer cylinders of a sleeve-type steel chimney, and its advantage is that it can solve the problem that due to the too large distance between the inner and outer cylinders and the too long anti-sway, under the action of wind vibration, the local part of the inner cylinder (the root of the anti-sway structure) is easily damaged.

[0006] To achieve the above purpose and other related purposes, the utility model provides the following technical solutions:

[0007] A connecting device for the inner and outer cylinders of a sleeve-type steel chimney includes an inner cylinder and an outer cylinder sleeved outside the inner cylinder; a support frame is fixedly arranged on the inner wall of the outer cylinder, and a support groove is arranged on the support frame; a sway-preventing rod is fixedly arranged on the outer wall of the inner cylinder and is arranged in the support groove, and the sway-preventing rod is in clearance fit with the support groove.

[0008] Through the above technical solution, when the inner cylinder is assembled into the outer cylinder, the sway-preventing rod sits in the support groove, and the sway-preventing rod is in clearance connection with the support groove, so that there is an activity gap between the inner cylinder and the outer cylinder; even under the action of wind vibration, there will be no problem that the local stress of the inner cylinder (the root of the anti-sway structure) becomes large in the traditional inner and outer cylinder connection structure, thus damaging the inner cylinder.

[0009] In an embodiment of the present utility model, a first reinforcing plate is fixed on the outer wall of the inner cylinder, and the anti-sway rod is fixed on the first reinforcing plate.

[0010] Through the above technical solution, it is used to compensate the inner cylinder at the connection between the anti-sway rod and the inner cylinder, and improve the tensile strength of the inner cylinder.

[0011] In an embodiment of the present utility model, the support frame includes a support rod fixed on the inner wall of the outer cylinder, two side plates oppositely arranged and fixed on the support rod, and a sealing plate connected to the two side plates and fixed on the support rod.

[0012] In an embodiment of the present utility model, the sealing plate and the two side plates are both fixed above the support rod; the two side plates, the sealing plate and the support rod are connected to form a support groove.

[0013] In an embodiment of the present utility model, a reinforcing rod fixedly connected to the inner wall of the outer cylinder is fixedly arranged below the support rod.

[0014] Through the above technical solution, the reinforcing rod is used to strengthen the support of the support rod.

[0015] In an embodiment of the present utility model, the anti-sway rod, the reinforcing rod and the support rod are all section steels.

[0016] Through the above technical solution, section steel has the advantages of light weight and strong bending resistance.

[0017] In an embodiment of the present utility model, a second reinforcing plate is fixedly arranged on the inner wall of the outer cylinder, and the support rod is fixed on the second reinforcing plate.

[0018] Through the above technical solution, the second reinforcing plate is used to compensate the outer cylinder at the connection between the support rod and the outer cylinder, and improve the tensile strength of the outer cylinder.

[0019] In an embodiment of the present utility model, the first reinforcing plate, the second reinforcing plate, the side plates and the sealing plate are all steel plates.

[0020] As described above, a connection device for the inner and outer cylinders of a sleeve-type steel chimney of the present utility model has the following beneficial effects:

[0021] 1. The anti-sway rod is connected with the support groove with a clearance, so that there is a movable clearance between the inner cylinder and the outer cylinder; even under the action of wind vibration, there will be no problem that the local stress of the inner cylinder (the root of the anti-sway structure) becomes larger in the traditional inner and outer cylinder connection structure, resulting in the damage of the inner cylinder.

[0022] 2. The anti-sway rod can be designed according to the conventional length, the local structural bearing capacity of the inner cylinder (the root of the anti-sway structure) can meet the design requirements, and the anti-corrosion performance of the inner cylinder can also meet the requirements.

[0023] 3. During the manufacturing process of the inner cylinder, the actual occupied space volume of the inner cylinder will be reduced, effectively reducing the difficulty of tooling production and facilitating production. At the same time, the manufacturing tolerance can also be reduced, and the inner cylinder is easier to be pushed into the outer cylinder, facilitating assembly. Brief Description of the Drawings

[0024] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of the connection relationship between the anti-sway rod and the support frame in an embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of the connection relationship between the anti-sway rod and the support groove in an embodiment of the present invention.

[0027] Reference Numerals: 1, support frame; 2, support groove; 3, anti-sway rod; 4, first reinforcing plate; 101, support rod; 102, side plate; 103, sealing plate; 8, reinforcing rod; 9, second reinforcing plate; 10, inner cylinder; 11, outer cylinder. Detailed Embodiment

[0028] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0029] Please refer to Figures 1 to 3 . It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear description and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope of implementation of the present invention.

[0030] Please refer to Figure 1 , Figure 2 and Figure 3, the present utility model provides a connecting device for the inner and outer cylinders of a sleeve-type steel chimney, which includes an inner cylinder 10 and an outer cylinder 11 sleeved outside the inner cylinder 10; a support frame 1 is fixedly arranged on the inner wall of the outer cylinder 11, and a support groove 2 is arranged on the support frame 1; a sway-preventing rod 3 is fixedly arranged on the outer wall of the inner cylinder 10 and is arranged in the support groove 2 in a clearance fit manner; in this embodiment, a plurality of support frames 1 are fixedly arranged at equal intervals on the inner circumference of the outer cylinder 11, and a plurality of sway-preventing rods 3 corresponding to the support frames 1 one by one are fixedly arranged at equal intervals on the outer circumference of the inner cylinder 10, so that the inner cylinder 10 is supported more stably;

[0031] A plurality of first reinforcing plates 4 are welded and fixed on the outer wall of the inner cylinder 10, and the sway-preventing rod 3 is welded and fixed on the first reinforcing plate 4, and the sway-preventing rod 3 is arranged perpendicular to the outer wall of the inner cylinder 10; the first reinforcing plate 4 is used to compensate the inner cylinder 10 at the connection between the sway-preventing rod 3 and the inner cylinder 10, and improve the tensile strength of the inner cylinder 10.

[0032] Please refer to Figure 1 , Figure 2 and Figure 3 , the support frame 1 includes a support rod 101, two side plates 102 and a sealing plate 103; a plurality of second reinforcing plates 9 are welded and fixed on the inner wall of the outer cylinder 11, the support rod 101 is welded and fixed on the second reinforcing plate 9, and the support rod 101 is arranged perpendicular to the inner wall of the outer cylinder 11; the second reinforcing plate 9 is used to compensate the outer cylinder 11 at the connection between the support rod 101 and the outer cylinder 11, and improve the tensile strength of the outer cylinder 11; the two side plates 102 are arranged oppositely and are welded and fixed on the support rod 101 on the side close to the inner cylinder 10, and the sealing plate 103 is welded and fixed on the support rod 101 on the side close to the outer cylinder 11 and the sealing plate 103 is respectively welded and fixed with the two side plates 102;

[0033] The sealing plate 103 and the two side plates 102 are both welded and fixed above the support rod 101; the two side plates 102, the sealing plate 103 and the support rod 101 are connected to form the support groove 2;

[0034] A reinforcing rod 8 is arranged below the support rod 101, one end of the reinforcing rod 8 is welded on the inner wall of the outer cylinder 11, and the other end is welded and fixed on the bottom of the support rod 101. The reinforcing rod 8 is used to strengthen the supporting force of the support rod 101; wherein the support rod 101, the reinforcing rod 8 and the outer cylinder 11 are connected to form a triangular structure, and the stability of the support of the support rod 101 is improved.

[0035] Please refer to Figure 1 , Figure 2 and Figure 3 , in this embodiment, the sway-preventing rod 3, the reinforcing rod 8 and the support rod 101 are all section steels, preferably H-section steels. The H-section steels have the advantages of light weight and strong bending resistance;

[0036] The first reinforcing plate 4, the second reinforcing plate 9, the side plate 102 and the sealing plate 103 are all steel plates.

[0037] Brief description of the installation process: Weld and fix the anti-sway rod 3 on the first reinforcing plate 4, and then weld the first reinforcing plate 4 on the outer wall of the inner cylinder 10 to form the anti-sway structure of the inner cylinder 10; then weld and fix the two side plates 102 and the sealing plate 103 on the support rod 101, and weld and fix the reinforcing rod 8 at the bottom of the support rod 101 to form the support frame 1, and then weld and fix the support frame 1 (one end of the support rod 101 and the reinforcing rod 8) on the inner wall of the outer cylinder 11; when the inner cylinder 10 is assembled into the outer cylinder 11, the anti-sway rod 3 falls into the support groove 2 on the support frame 1. Since the support groove 2 and the anti-sway rod 3 are in clearance connection, there is a movable gap between the inner cylinder 10 and the outer cylinder 11; preventing the inner cylinder from being subjected to large stresses locally and avoiding situations such as deformation or cracking of the inner cylinder; realizing the connection between the inner and outer cylinders 11 of the sleeve self-standing steel chimney with a relatively large distance between the inner and outer cylinders 11.

[0038] To sum up, in the present utility model, the anti-sway rod 3 and the support groove 2 are in clearance connection, so that there is a movable gap between the inner cylinder 10 and the outer cylinder 11; even under the action of wind vibration, there will be no problem that the local stress of the inner cylinder 10 (the root of the anti-sway structure) in the traditional connection structure of the inner cylinder 10 and the outer cylinder 11 becomes larger, resulting in the damage of the inner cylinder 10. Therefore, the present utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0039] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A connecting device for the inner and outer cylinders of a sleeve-type steel chimney, comprising an inner cylinder (10) and an outer cylinder (11) sleeved outside the inner cylinder (10); characterized in that: A support frame (1) is fixedly arranged on the inner wall of the outer cylinder (11), and a support groove (2) is arranged on the support frame (1); an anti-sway rod (3) is fixedly arranged on the outer wall of the inner cylinder (10) and is arranged in the support groove (2) in a clearance fit manner.

2. The connecting device between the inner and outer cylinders of a sleeve-type steel chimney according to claim 1, characterized in that: A first reinforcing plate (4) is fixedly arranged on the outer wall of the inner cylinder (10), and the anti-sway rod (3) is fixedly arranged on the first reinforcing plate (4).

3. The connecting device for the inner and outer cylinders of a sleeve-type steel chimney according to claim 2, characterized in that: The support frame (1) includes a support rod (101) fixedly arranged on the inner wall of the outer cylinder (11), two side plates (102) oppositely arranged and fixedly arranged on the support rod (101), and a sealing plate (103) connected to the two side plates (102) and fixedly arranged on the support rod (101).

4. The inner and outer cylinder connection device of a sleeve-type steel chimney according to claim 3, characterized in that: The sealing plate (103) and the two side plates (102) are both fixedly arranged above the support rod (101); the two side plates (102), the sealing plate (103) and the support rod (101) are connected to form the support groove (2).

5. The sleeve-type steel chimney inner and outer cylinder connection device according to claim 4, characterized in that: A reinforcing rod (8) fixedly connected to the inner wall of the outer cylinder (11) is fixedly arranged below the support rod (101).

6. A connecting device for the inner and outer cylinders of a sleeve-type steel chimney according to claim 5, characterized in that: The anti-sway rod (3), the reinforcing rod (8) and the support rod (101) are all shaped steel.

7. A connecting device for the inner and outer cylinders of a sleeve-type steel chimney according to claim 3, characterized in that: A second reinforcing plate (9) is fixedly arranged on the inner wall of the outer cylinder (11), and the support rod (101) is fixedly arranged on the second reinforcing plate (9).

8. A connecting device for the inner and outer cylinders of a sleeve-type steel chimney according to claim 7, characterized in that: The first reinforcing plate (4), the second reinforcing plate (9), the side plates (102) and the sealing plate (103) are all steel plates.

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