Product description
1. Product Name
Main Product Name
SDS Tunnel Jet Fan
Recommended SEO Names
SDS Series Tunnel Jet Fan
Tunnel Jet Fan
Tunnel Ventilation Jet Fan
Highway Tunnel Jet Fan
Railway Tunnel Jet Fan
Metro Tunnel Ventilation Fan
Reversible Tunnel Jet Fan
Tunnel Smoke Extraction Fan
2. Product Overview
SDS Tunnel Jet Fan
The SDS Tunnel Jet Fan is a high-performance axial flow ventilation fan designed for tunnel longitudinal ventilation systems.
It is widely used in:
Highway tunnels
Railway tunnels
Metro tunnels
Underground transportation systems
Hydropower tunnels
Underground engineering projects
The fan creates high-speed jet airflow to generate thrust, driving air movement inside the tunnel and improving ventilation efficiency.
Main functions:
Fresh air circulation
Vehicle exhaust removal
Carbon monoxide reduction
Tunnel air quality control
Emergency smoke extraction
SDS tunnel jet fans are generally installed on tunnel ceilings or side walls and use the tunnel space itself as the ventilation passage, reducing the requirement for large ventilation ducts.
3. Working Principle
Longitudinal Tunnel Ventilation System
The operating principle:
Jet Fan High Velocity Airflow
↓
Generate Thrust Force
↓
Push Tunnel Air Forward
↓
Remove Exhaust Gas
↓
Maintain Tunnel Air Quality
The fan transfers energy to the surrounding tunnel air through jet momentum, creating longitudinal airflow throughout the tunnel.
4. Main Applications
Highway Tunnel Jet Fan
Application
Expressway tunnels
Road tunnels
Long-distance tunnels
Mountain tunnels
Functions:
Normal ventilation
Vehicle exhaust removal
Emergency smoke control
SEO Keywords:
Highway Tunnel Jet Fan
Road Tunnel Ventilation Fan
Railway Tunnel Jet Fan
Applications:
High-speed railway tunnels
Railway underground passages
Transportation tunnels
Functions:
Air circulation
Temperature control
Smoke extraction
Keywords:
Railway Tunnel Jet Fan
Railway Tunnel Ventilation System
Metro Tunnel Ventilation Fan
Applications:
Subway tunnels
Metro stations
Underground transportation systems
Functions:
Passenger comfort ventilation
Heat removal
Emergency ventilation
Keywords:
Metro Tunnel Jet Fan
Subway Tunnel Ventilation Fan
5. SDS Series Product Types
SDS Unidirectional Tunnel Jet Fan
Features
Single airflow direction
High efficiency operation
Simple structure
Low maintenance
Applications:
Fixed-direction tunnel ventilation systems
SDS(R) Reversible Tunnel Jet Fan
Features
Forward and reverse operation
Bidirectional airflow
Emergency smoke extraction capability
Applications:
Complex tunnel ventilation systems
Fire emergency ventilation
SDS(R) reversible jet fans are designed for bidirectional airflow requirements in tunnel ventilation projects.
6. Product Structure
Fan Casing
Features:
High strength steel structure
Corrosion-resistant surface treatment
Suitable for tunnel environments
Optional materials:
Carbon steel
Hot-dip galvanized steel
Stainless steel
Impeller
Features:
Aerodynamic blade design
Aluminum alloy construction
Optimized thrust performance
Advantages:
High efficiency
Low energy consumption
Stable airflow
Motor
Standard configuration:
Totally enclosed motor
IP55 protection
Class H insulation
Options:
Standard motor
High temperature resistant motor
Variable speed motor
Silencer
Optional:
Single silencer
Double silencer
Purpose:
Reduce tunnel noise
Improve operating environment
7. Main Advantages
High Thrust Performance
The main evaluation index of a tunnel jet fan is thrust.
Advantages:
Strong airflow propulsion
Effective longitudinal ventilation
Suitable for long tunnels
Energy Efficient Operation
Features:
Optimized impeller design
Reduced airflow losses
High motor efficiency
Benefits:
Lower power consumption
Reduced operation cost
Low Noise Design
Solutions:
Optimized blade profile
Silencer configuration
Improved aerodynamic performance
Suitable for:
Urban tunnels
Metro systems
Passenger transportation tunnels
Space Saving Installation
Advantages:
Ceiling suspension installation
No large ventilation duct required
Reduced construction requirements
8. Tunnel Fire Smoke Extraction Application
Tunnel Smoke Extraction Fan
In emergency fire conditions, SDS jet fans can assist smoke movement control.
Functions:
Control smoke direction
Improve evacuation conditions
Support emergency ventilation
High-temperature operation versions are available according to project requirements. Some SDS tunnel jet fan designs support operation at elevated temperatures for emergency smoke extraction applications.
9. Technical Specifications
Parameter Specification
Product Type SDS Tunnel Jet Fan
Fan Type Axial Flow Jet Fan
Application Tunnel Ventilation
Installation Ceiling / Side Wall Mounted
Diameter 630mm - 1600mm
Operation Single Direction / Reversible
Maximum Thrust Up to 3500N
Motor Protection IP55
Insulation Class H
Control Direct Start / VFD
Noise Control Silencer Optional
SDS series products commonly cover 630mm to 1600mm diameter ranges and include single-direction and reversible configurations.
email：sales@ems-fanstech.com
Phone / WhatsApp：+8613806436890