Composite chimney with one cylinder and half multiple pipes

By using a composite chimney structure with one and a half tubes and multiple pipes, the problems of large quantity and high cost of traditional chimney anti-corrosion structures are solved, achieving the effects of reducing costs and improving stability.

CN224213889UActive Publication Date: 2026-05-08SISRI ENVIRONMENTAL EQUIP ENG (LIANYUNGANG) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SISRI ENVIRONMENTAL EQUIP ENG (LIANYUNGANG) CO LTD
Filing Date
2025-06-06
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The internal exhaust pipes of traditional multi-pipe and sleeve-type chimneys are set from bottom to top, which increases the amount of anti-corrosion structure and the volume of the external cylinder, thus increasing the overall cost.

Method used

The structure adopts a composite chimney structure with one and a half tubes and multiple inner tubes inside the lower outer tube, and a single tube at the top. They are connected by a sealing platform, combined with an inner lining brick adhesive system and flexible connection, which reduces the anti-corrosion area and the overall structural material usage.

Benefits of technology

The reduced corrosion protection area and upper single-cylinder volume decreased the overall structural material usage and construction cost, while improving the stability and service life of the chimney.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a one-barrel half multi-pipe composite chimney, which belongs to the technical field of industrial chimneys, and comprises a lower outer barrel, a plurality of lower inner barrels are fixedly connected in the lower outer barrel through a support, a hole sealing platform is fixedly mounted at the top of the lower outer barrel, an upper single barrel is mounted at the top of the hole sealing platform, and a plurality of lower inner barrels are fixedly mounted at the bottom of the upper single barrel. A smoke exhaust hole is formed in the position, corresponding to the lower inner cylinder, of the hole sealing platform, the lower opening position of the smoke exhaust hole is flexibly connected with the top end of the lower inner cylinder through an expansion joint, an inner cylinder pulley is installed on the periphery of the lower inner cylinder, and the periphery of the inner cylinder pulley is movably connected with the inner side wall of the lower outer cylinder. A plurality of inner cylinders can be arranged in the lower outer cylinder and matched with the upper single cylinder to guarantee the smoke exhaust height, so that the anti-corrosion area is reduced, the structure of the upper single cylinder is reduced, the overall structure consumption and the manufacturing cost are greatly reduced, and resources and the investment cost of a user are saved.
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Description

Technical Field

[0001] This utility model relates to the field of industrial chimney technology, and more specifically, to a composite chimney with one and a half tubes and multiple tubes. Background Technology

[0002] Traditional multi-tube chimneys typically consist of an outer cylinder containing multiple internal exhaust stacks, while traditional sleeve-type chimneys typically consist of an outer cylinder containing one internal exhaust stack. The outer cylinder serves as a structural support to resist loads such as wind and earthquakes, while the internal exhaust stack serves as a corrosion-resistant and smoke-exhausting structure.

[0003] Based on the above, the inventors have discovered that the internal exhaust stacks of traditional multi-tube chimneys and traditional sleeve-type chimneys are usually set from the bottom to the top of the chimney. This often results in an increase in the amount of anti-corrosion structure used in the internal exhaust stack, an increase in the volume of the external stack, and an increase in the load-bearing capacity for external wind and earthquakes, thereby increasing the overall cost. Therefore, in view of this, the inventors have studied and improved the existing structure to provide a one-and-a-half-stove multi-tube composite chimney, in order to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a one-and-a-half-tube multi-tube composite chimney, which can have multiple inner tubes inside the lower outer tube and work with the upper single tube to ensure the exhaust height, thereby reducing the anti-corrosion area and the size of the upper single tube structure, greatly reducing the overall structural material usage and cost, thus saving resources and user investment costs.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A composite chimney with one and a half tubes includes a lower outer tube. Multiple lower inner tubes are fixedly connected to the interior of the lower outer tube by a bracket. A sealing platform is fixedly installed on the top of the lower outer tube. An upper single tube is installed on the top of the sealing platform. A smoke exhaust hole is opened on the sealing platform corresponding to the position of the lower inner tube. The lower opening of the smoke exhaust hole is flexibly connected to the top of the lower inner tube by an expansion joint.

[0009] Furthermore, an inner cylinder pulley is installed on the outer periphery of the lower inner cylinder, and the outer periphery of the inner cylinder pulley is movably connected to the inner side wall of the lower outer cylinder.

[0010] Furthermore, both the lower inner cylinder and the upper single cylinder are carbon steel cylindrical structures, and the inner walls of the lower inner cylinder and the upper single cylinder, as well as the top of the sealing platform, are all equipped with an inner lining brick adhesive system.

[0011] Furthermore, a flue gas inlet is horizontally installed on the outer periphery of the bottom of the lower inner cylinder, and one end of the flue gas inlet extends to the outside of the lower outer cylinder.

[0012] Furthermore, the bottom outer periphery of the lower inner cylinder is also provided with a dust removal hole and a drain pipe.

[0013] Furthermore, a control room is provided inside the bottom empty space of the lower outer cylinder, and an elevator, a straight ladder and a maintenance platform are provided in the gap between the inner wall of the lower outer cylinder and the lower inner cylinder.

[0014] Furthermore, a smoke exhaust port is provided at the top of the upper single cylinder.

[0015] 3. Beneficial Effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) In this scheme, a new chimney is formed by combining the lower outer cylinder, multiple lower inner cylinders set inside the lower outer cylinder and the upper single cylinder set at the top, thereby reducing the anti-corrosion area and the volume of the upper single cylinder, reducing the overall structural usage and cost, thus saving resources and user investment costs. At the same time, the lower outer cylinder and lower inner cylinder are separated from the upper single cylinder by the sealing platform, and the inner wall of the lower inner cylinder and the upper single cylinder is lined with brick adhesive for anti-corrosion, ensuring the waterproof, anti-corrosion and heat insulation requirements of the emitted flue gas.

[0018] (2) In this scheme, by setting inner cylinder pulleys on the outer periphery of the lower inner cylinder, it is convenient to install the lower inner cylinder during manufacturing, and also avoids restricting the movement of the lower inner cylinder, ensuring the movement space of the lower inner cylinder. At the same time, the lower inner cylinder and the sealing platform are flexibly connected, which avoids affecting the free movement of the lower inner cylinder in the chimney, ensuring the thermal expansion and contraction of the lower inner cylinder and the movement space, and improving the stability of use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 For the present utility model Figure 1 Schematic diagram of the cross-sectional structure at position AA;

[0021] Figure 3 For the present utility model Figure 1 Schematic diagram of the cross-sectional structure at the middle BB position;

[0022] Figure 4 This is a partial structural diagram of the lower inner cylinder of this utility model;

[0023] Figure 5This is a schematic diagram of the connection position of the lower outer cylinder, the sealing platform, and the upper single cylinder of this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Lower outer cylinder;

[0026] 2. Bracket;

[0027] 3. Lower inner cylinder;

[0028] 4. Sealing platform;

[0029] 5. Upper single tube;

[0030] 6. Smoke vent;

[0031] 7. Expansion joint;

[0032] 8. Inner cylinder pulley;

[0033] 9. Flue gas inlet;

[0034] 10. Dust removal hole;

[0035] 11. Drainage pipe;

[0036] 12. Control room;

[0037] 13. Smoke exhaust port. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0039] Example:

[0040] Please see Figures 1-5 A multi-tube composite chimney includes a lower outer cylinder 1. Multiple lower inner cylinders 3 are fixedly connected to the interior of the lower outer cylinder 1 via a bracket 2. A sealing platform 4 is fixedly installed on the top of the lower outer cylinder 1. An upper single cylinder 5 is installed on the top of the sealing platform 4. A smoke exhaust hole 6 is opened on the sealing platform 4 corresponding to the position of the lower inner cylinder 3. The lower opening of the smoke exhaust hole 6 is flexibly connected to the top of the lower inner cylinder 3 via an expansion joint 7.

[0041] See Figure 4 The lower inner cylinder 3 is equipped with an inner cylinder pulley 8 on its outer periphery, and the outer periphery of the inner cylinder pulley 8 is movably connected to the inner side wall of the lower outer cylinder 1.

[0042] See Figure 5Both the lower inner cylinder 3 and the upper single cylinder 5 are carbon steel cylindrical structures. The inner walls of the lower inner cylinder 3 and the upper single cylinder 5, as well as the top of the sealing platform 4, are equipped with an inner brick adhesive system. The inner brick adhesive system can also be replaced by corrosion-resistant materials with structural support strength, such as stainless steel, stainless steel composite plate, titanium or titanium composite plate.

[0043] See Figure 1 A flue gas inlet 9 is installed horizontally on the outer periphery of the bottom of the lower inner cylinder 3. One end of the flue gas inlet 9 extends to the outside of the lower outer cylinder 1. The lower inner cylinder 3 and the lower outer cylinder 1 can be fixedly connected at the bottom or suspended. The number of lower inner cylinders 3 can be multiple or one.

[0044] See Figure 1 The bottom outer periphery of the lower inner cylinder 3 is also provided with a dust removal hole 10 and a drain pipe 11.

[0045] See Figure 1 The control room 12 is set up in the empty space at the bottom of the lower outer cylinder 1. A lifting ladder, a straight ladder and a maintenance platform are set up in the gap between the inner wall of the lower outer cylinder 1 and the lower inner cylinder 3.

[0046] See Figure 1 The top of the upper single cylinder 5 is provided with a smoke exhaust port 13.

[0047] In use: The lower outer cylinder 1, multiple lower inner cylinders 3 inside the lower outer cylinder 1, and the upper single cylinder 5 at the top are combined to form a new chimney, thereby reducing the anti-corrosion area and the volume of the upper single cylinder 5, reducing the overall structural material usage and construction cost, thus saving resources and user investment costs. At the same time, the lower outer cylinder 1 and lower inner cylinder 3 are separated from the upper single cylinder 5 by the sealing platform 4. The inner wall of the lower inner cylinder 3 and the upper single cylinder 5 is lined with an internal brick adhesive system for anti-corrosion, ensuring the waterproof, anti-corrosion and heat insulation requirements of the exhaust gas. In addition, inner cylinder pulleys 8 are set on the outer periphery of the lower inner cylinder 3, which facilitates the installation of the lower inner cylinder 3 during manufacturing and avoids restricting the movement of the lower inner cylinder 3, ensuring the movement space of the lower inner cylinder 3. At the same time, the lower inner cylinder 3 and the sealing platform 4 are flexibly connected, avoiding affecting the free movement of the lower inner cylinder 3 in all directions, ensuring the thermal expansion and contraction of the lower inner cylinder 3 and the space for movement, and improving the stability of use.

[0048] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A composite chimney with one and a half tubes, including a lower outer tube (1), characterized in that: The lower outer cylinder (1) is fixedly connected to multiple lower inner cylinders (3) by a bracket (2). A sealing platform (4) is fixedly installed on the top of the lower outer cylinder (1). An upper single cylinder (5) is installed on the top of the sealing platform (4). A smoke exhaust hole (6) is opened on the sealing platform (4) corresponding to the position of the lower inner cylinder (3). The lower opening of the smoke exhaust hole (6) is flexibly connected to the top of the lower inner cylinder (3) by an expansion joint (7).

2. The composite chimney with one and a half tubes according to claim 1, characterized in that: The lower inner cylinder (3) is equipped with an inner cylinder pulley (8) on its outer periphery, and the outer periphery of the inner cylinder pulley (8) is movably connected to the inner wall of the lower outer cylinder (1).

3. The composite chimney with one and a half tubes according to claim 1, characterized in that: The lower inner cylinder (3) and the upper single cylinder (5) are both carbon steel cylindrical structures. The inner walls of the lower inner cylinder (3), the upper single cylinder (5) and the top of the sealing platform (4) are all equipped with an inner lining brick adhesive system.

4. The composite chimney with one and a half tubes according to claim 1, characterized in that: A flue gas inlet (9) is installed laterally on the outer periphery of the bottom of the lower inner cylinder (3), and one end of the flue gas inlet (9) extends to the outside of the lower outer cylinder (1).

5. The composite chimney with one and a half tubes according to claim 1, characterized in that: The bottom outer periphery of the lower inner cylinder (3) is also provided with a dust removal hole (10) and a drain pipe (11).

6. The composite chimney with one and a half tubes according to claim 1, characterized in that: The lower outer cylinder (1) has a control room (12) in the bottom empty space, and a lifting ladder, a straight ladder and a maintenance platform are provided in the gap between the inner wall of the lower outer cylinder (1) and the lower inner cylinder (3).

7. The composite chimney with one and a half tubes according to claim 1, characterized in that: The top of the upper single cylinder (5) is provided with a smoke exhaust port (13).