Steel chimney anti-sway device
By combining the main steel frame, anti-sway steel frame, and limiting support baffle, the swaying and thermal expansion problems of the steel chimney under poor foundation conditions are solved, thus achieving stable support and improved safety of the steel chimney.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU BOILER GRP CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-03
Smart Images

Figure CN224452374U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial and civil steel chimney technology, and in particular to a steel chimney anti-sway device. Background Technology
[0002] With the development of my country's steel industry, steel structures have been widely used in industrial and civil buildings, and steel chimneys have also seen rapid development and application along with the development of steel structures. Compared with brick chimneys and concrete chimneys, steel chimneys have the advantages of being lightweight and quick to construct, so they are selected for many projects.
[0003] Due to limitations in layout space and structure, it is sometimes necessary to use steel chimneys erected on top of other structures. In such cases, the foundation conditions of the steel chimney are relatively poor, requiring consideration of additional structures to provide reliable support. Simultaneously, it is necessary to address the impact of deviations easily caused by installation and manufacturing issues with existing steel chimneys, and to resolve structural problems related to thermal expansion of the steel chimney and its support structure. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model designs a steel chimney anti-sway device.
[0005] The present invention adopts the following technical solution:
[0006] A steel chimney anti-sway device includes a main steel frame and a steel chimney. The main steel frame is provided with a chimney support and an anti-sway steel frame. The steel chimney is supported on the main steel frame by the chimney support. The anti-sway steel frame is connected to the main steel frame and is higher than the chimney support by a certain distance. The anti-sway steel frame and the chimney are limited by multiple limiting supports and limiting baffles. The limiting supports are connected to the anti-sway steel frame, and the limiting baffles are connected to the steel chimney. Reinforcing ribs are provided on the steel chimney at the connection.
[0007] Preferably, the anti-sway steel frame consists of four columns and several crossbeams and tie rods.
[0008] Preferably, the anti-sway steel frame extends beyond the chimney support by a distance equal to 1 / 4 of the height of the steel chimney.
[0009] Preferably, the number of the limiting supports and limiting baffles is a multiple of 4.
[0010] Preferably, the reinforcing ribs on the steel chimney are vertically arranged H-beams and are connected to the circumferential reinforcing ribs on the top and bottom of the steel chimney itself.
[0011] Preferably, a gap is left between the limiting support and the limiting baffle, and an adjusting shim is installed on the limiting support. By adjusting the thickness of the shim, this gap is kept at a certain size.
[0012] Preferably, the ends of the limiting support and the limiting baffle are designed in a V-shape, with a gap of 5-6mm at the joint.
[0013] Preferably, the adjusting shim is a shim group composed of shims of multiple specifications, and is fixed to the limiting support with bolts.
[0014] The beneficial effects of this utility model are: (1) By adding lateral support points to the steel chimney at appropriate positions, the swaying of the steel chimney can be effectively reduced, making the structure safer; (2) By setting adjustment pads, the influence of deviations caused by installation, manufacturing and other reasons can be quickly and easily resolved; (3) By reserving appropriate gaps, the gaps can be kept too large while meeting the thermal expansion of the steel chimney, so as not to cause the chimney to sway. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 yes Figure 1 Top view at the chimney support;
[0017] Figure 3 yes Figure 1 Top view of the limiting support and limiting baffle;
[0018] Figure 4 This is a detailed diagram of the connection between the limiting support and the limiting baffle;
[0019] Figure 5 yes Figure 4 Top view;
[0020] In the diagram: 1. Anti-sway steel frame; 2. Limiting support; 3. Limiting baffle; 4. Adjusting shim; 5. Reinforcing rib; 6. Steel chimney; 7. Chimney support; 8. Main steel frame. Detailed Implementation
[0021] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:
[0022] Example: Figures 1-5As shown, a steel chimney anti-sway device includes an anti-sway steel frame 1, limiting supports 2, limiting baffles 3, adjusting shims 4, reinforcing ribs 5, a steel chimney 6, a chimney support 7, and a main steel frame 8. The steel chimney 6 is supported on the main steel frame 8 by the chimney support 7. The anti-sway steel frame 1 consists of four columns, several crossbeams, and tie rods, and stands on the main steel frame 8. The anti-sway steel frame 1 and the steel chimney 6 are limited by eight pairs of limiting supports 2 and limiting baffles 3. Adjusting shims 4 are provided on the limiting supports 2, and the adjusting shims 4 consist of shim sets and bolt fasteners. The limiting baffles 2 are connected to the steel chimney 6, and reinforcing ribs 5 are provided on the chimney at the connection point.
[0023] The anti-sway steel frame 1 is 1 / 4 the height of the chimney support 7.
[0024] The reinforcing ribs 5 installed on the steel chimney 6 are made of vertically arranged H-beams and are connected to the circumferential reinforcing ribs on the top and bottom of the steel chimney 6 itself.
[0025] A gap is left between the limiting support 2 and the limiting baffle 3. This gap is maintained at a certain size by adjusting the thickness of the shim 4. The joint ends of the limiting support 2 and the limiting baffle 3 are designed to be V-shaped, with a gap of 5-6 mm left at the joint.
[0026] During installation, first install the steel chimney 6 and the anti-sway steel frame 1. After the steel chimney 6 and the anti-sway steel frame 1 are in place, install the limiting baffle 3 and the limiting support 2 at the preset positions on the chimney 6 and the anti-sway steel frame 1. The limiting baffle 3 and the limiting support 2 are arranged in pairs. Install the reinforcing rib 5 at the corresponding positions on the limiting baffle 3. Finally, install the adjusting shims 4 on the limiting support 2, adjust the thickness of the shim group in the adjusting shims 4, and adjust the gap between the limiting support 2 and the limiting baffle 3 to 5~6mm.
[0027] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.
Claims
1. A steel chimney sway brace assembly comprising a main steel frame and a steel chimney, characterized in that, The main steel frame is equipped with a chimney support and an anti-sway steel frame. The steel chimney is supported on the main steel frame by the chimney support. The anti-sway steel frame is connected to the main steel frame and is higher than the chimney support by a certain distance. The anti-sway steel frame and the chimney steel are limited by multiple limiting supports and limiting baffles. The limiting supports are connected to the anti-sway steel frame, and the limiting baffles are connected to the steel chimney. Reinforcing ribs are set on the steel chimney at the connection.
2. A steel chimney sway brace device according to claim 1, characterized in that The anti-sway steel frame consists of four columns and several crossbeams and tie rods.
3. The steel chimney sway brace of claim 1 wherein, The anti-sway steel frame extends a distance of 1 / 4 of the height of the steel chimney from the chimney support.
4. The steel chimney sway brace of claim 1 wherein, The number of the limiting supports and limiting baffles is a multiple of 4.
5. The steel chimney sway brace of claim 1 wherein, The reinforcing ribs on the steel chimney are vertically arranged H-beams and are connected to the circumferential reinforcing ribs on the top and bottom of the steel chimney itself.
6. The steel chimney sway brace of claim 1 wherein the A gap is left between the limiting support and the limiting baffle. An adjusting shim is installed on the limiting support. By adjusting the thickness of the shim, this gap is kept at a certain size.
7. A steel chimney sway brace device according to claim 6, characterized in that The ends of the limiting support and the limiting baffle are designed in a V shape, with a gap of 5-6mm left at the joint.
8. A steel chimney sway brace device according to claim 6, characterized in that The adjusting shims are composed of shims of various specifications and are fixed to the limiting support with bolts.