Product introduction
The Future-Proof Solution: The Multi-sleeve Chimney
The Multi-sleeve Chimney from Tengshida is a highly efficient and adaptable system designed for facilities with multiple boilers, generators, or industrial processes. By housing several individual, independent flue liners (sleeves) within a single, consolidated structural shell, we deliver a solution that saves space, reduces costs, and provides unparalleled operational flexibility for the life of your facility.
The Strategic Advantage of a Consolidated System
A Multi-sleeve Chimney is a smart, strategic investment for growing or complex facilities. It provides a series of powerful benefits that a collection of individual stacks cannot match.
Maximum Operational Flexibility: This is the key advantage. Each sleeve serves a single appliance. You can shut down, inspect, repair, or even completely replace one boiler and its corresponding sleeve without affecting the operation of the other units. This eliminates costly full-plant shutdowns for routine chimney maintenance.
Maximum Operational Flexibility: This is the key advantage. Each sleeve serves a single appliance. You can shut down, inspect, repair, or even completely replace one boiler and its corresponding sleeve without affecting the operation of the other units. This eliminates costly full-plant shutdowns for routine chimney maintenance.
Space-Efficient and Cost-Effective Design: A single consolidated chimney structure requires a much smaller ground footprint and a single foundation compared to a field of individual stacks. This saves valuable real estate and significantly reduces construction and material costs.
Optimized Performance for Each Appliance: Every sleeve is individually sized for the specific appliance it serves. This ensures proper draft and exhaust velocity for each unit, maximizing its efficiency and performance-something a single large, shared flue cannot do, especially under partial load conditions.
The product performance is as follows
|
Product Type |
Self-supporting multi-layer sleeve structure (inner cylinder + outer cylinder) |
Height Range |
10m-150m |
|
Material Composition |
Inner cylinder: 316 stainless steel / Outer cylinder: galvanized steel (titanium alloy liner optional) |
Inspection Port Design |
Pre-installed flue gas inspection ports on each segment |
|
Application |
High-temperature flue gas emission for large power plants and chemical plants |
Wind Resistance |
Wind pressure resistance: 1.0kN/m² |
|
Temperature Range |
Inner cylinder: withstands up to 1000°C / Outer cylinder: up to 300°C |
Installation Method |
Hoisting and docking + anchor bolt fixation |
|
Pressure Resistance |
≥15kPa (negative pressure resistant design) |
Warranty |
Main structure: 15 years / Inner cylinder: 10 years |
|
Anti-corrosion |
Inner cylinder: acid pickling and passivation / Outer cylinder: hot-dip galvanizing |
Additional Services |
Free load calculation report & on-site installation guidance |
|
Insulation Design |
Interlayer filled with aluminum silicate fiber wool |
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Modular Design |
Segmented prefabricated flange connection |
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Flow Guide Device |
Top rain cap + guide plate (anti-backflow design) |
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Diameter Range |
500mm-6000mm |
Application Scenario






Production machinery
List of processing and manufacturing equipment
|
No. |
Equipment Type |
Equipment Name |
Brand |
Manufacturing Date |
Model |
Key Metric Value |
|
1 |
CNC (Plasma) Cutting Machine |
Beijing Jiaming Botong Technology Co., Ltd. |
2015/10/1 |
JMG66 |
Cutting Thickness |
6-200mm |
|
2 |
Laser Cutting Machine |
Dezhou Jifeng CNC Equipment Co., Ltd. |
2023/8/1 |
LBC-10025D |
Effective Cutting Area |
10000mm × 2500mm |
|
3 |
Edge Milling Machine |
Jiangdong Machine Tool Works |
May-15 |
X6132 |
Length |
1320mm |
|
4 |
Plate Rolling Machine |
Nantong Pengwei Machine Tool Co., Ltd. |
Dec-18 |
W11S-NC-40×3000 |
Plate Rolling Capacity |
Thickness: 40mm, Width: 3000mm |
|
5 |
Press Brake |
Nantong Donghai Machine Tool Mfg. Co., Ltd. |
Sep-16 |
1223 |
Tonnage |
2000 tons |
|
6 |
CNC Section Steel Production Line |
Shandong Fin CNC Machinery Co., Ltd. |
Mar-15 |
BL2020 |
Angle Steel Specification |
63×63×4~200×200×20mm |





Company Introduction
Tengshida (Hebei) Environmental Engineering Co., Ltd. operates a specialized manufacturing facility in Hengshui, Hebei, dedicated to producing high-performance industrial environmental equipment. Established in 2015, our expansive 100,000-square-meter site serves as the production base for our core products, including self-supporting, tower, and stainless steel chimneys. With a registered capital of 100 million RMB and a highly skilled workforce, we have the capacity and technical foundation to manage large-scale industrial projects from fabrication to completion, ensuring every product meets our strict quality standards.





Frequently Asked Questions (FAQ)
1. When should a facility consider a Multi-sleeve Chimney?
This design is ideal for facilities with three or more separate exhaust sources, such as power plants with multiple boiler units, hospitals or data centers with multiple emergency generators, or industrial plants with various process lines. It is also the smartest choice for any facility that anticipates future expansion.
2. Can the sleeves be made of different materials?
Yes. This is another key advantage. If you have different processes with different types of exhaust, each sleeve can be made from the most appropriate material. For example, a chimney could house a high-temperature alloy sleeve for a furnace, a 316L stainless steel sleeve for a boiler, and even a fiberglass (FRP) sleeve for a low-temperature corrosive scrubber, all within the same support structure.
3. How are the individual sleeves supported within the main chimney shell?
The sleeves are typically supported from the bottom at a base-level slab and are laterally braced at regular intervals up the height of the chimney using a steel grid framework. This system allows the sleeves to expand and contract vertically with temperature changes independently of each other and of the main structural shell.
You can contact us in the following ways:
WhatsApp:
Mail:steelchimney.tengshida@gmail.com

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