Description
Tunnel jet fan
A tunnel jet fan is an important and very practical ventilation system that is installed in inner-city and intermediate tunnels and directs the polluted air produced by the exhaust of cars to the outside of the tunnel. Jet fans are not air conditioning systems, but they can complement the work of fans and air conditioning fans. Tunnel jet fan is capable of air conditioning and air transfer and can circulate a large volume of air in a very large space. Due to the powerful engines of tunnel jet fans, they can also cover all blind spaces.
Jet fan tunnels have been used for tunnel ventilation for years, significantly limiting the concentration of carbon monoxide (CO) and other potential pollutants such as nitric oxide (NO), nitrogen dioxide (NO2), sulfur dioxide ( SO2) and provides fresh and pollution-free air. Tunnel jet fans operate in a similar way to axial fans, but rotate at high speeds to drain large amounts of air. Tunnel jet fans are easy compared to other portable duct systems because tunnel jet fans are allowed to be installed close to the fan, which reduces cabling and operating costs. Tunnel jet fans are designed to operate at very low noise.
Tunnel jet fans are reversible to evacuate smoke in both directions if necessary in case of fire accidents inside the tunnels. Reversible (symmetrical) and one-way (asymmetric) tunnel fan can be installed according to the need for air flow. Tunnel jet fan is available with different options for size, cover thickness, impeller type, etc.
Parsa Fan Tunnel Jet Fan
Parsa Fan Tunnel Jet Fan is a large and cylindrical device that is installed on the roof of tunnels and can distribute the fresh air entering the tunnel throughout it and cause air conditioning in this system. Tunnel jet fans usually use large and powerful axial fans for air conditioning. The air pressure generated by the jet fan is distributed throughout this closed environment, thus creating a constant air flow. According to the initial configuration of the tunnel jet fan, the air flow will be such that fresh air is taken from the inlets and air conditioners and distributed throughout the tunnel and the polluted air is directed to the outlets.
Tunnel ventilation systems that use tunnel jet fans are the most complete ventilation systems and use the highest technology. These systems can meet all the needs of tunnel ventilation and fully ensure the safety of these vital parts of the road.
Tunnel ventilation systems that use tunnel jet fans are the most complete ventilation systems and use the highest technology. These systems can meet all the needs of tunnel ventilation and fully ensure the safety of these vital parts of the road.
Even if the need for fresh air is different for each tunnel, the main design parameter for all ventilation systems is good air quality. This can be effectively achieved by installing a tunnel jet fan to move the air by striking a blow (measured as drift in Newtons) in the desired direction.
Parsa Fan Ventilation Standard Tunnel Jet Fan
Parsa Fan Tunnel Jet Fan is a compression technology product with a chamber-based design that has a sound, a rotor, a motor as the power supply and a stator that secures the motor inwards. In addition to being energy efficient tunnel jets, most tunnel jets are made of compact design so that the ventilation system does not leave the traffic space when installed inside the tunnel.
Use of Parsa Fan tunnel jet fan in tunnel ventilation systems
Tunnels have very severe air quality restrictions that typically require proper ventilation. It is important for fresh natural air to enter the tunnels or to eliminate exhaust gases under natural conditions or to get rid of smoke in emergencies. The accumulation of these contaminants is very dangerous and can cause explosions and fires. In this case, an efficient ventilation system inside the tunnels must be used. The tunnel jet fan can handle this task well due to its very high production capacity.
The possibility of extracting air in the tunnel depends on two factors:
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Type of ventilation (longitudinal, semi-transverse or transverse ventilation)
Loss factor that reduces air velocity
Types of Parsa tunnel fan jet ventilation fan
Ordinary jet fan.
The simplest models of tunnel jet fans are ordinary models that can ventilate the air at a constant angle and direction. Most jet fans used in tunnels are of this model.
Reversible tunnel jet fan .
Some jet fan models use airflow reversing capability for high performance. Reversing the airflow system is done using two-way impellers and high-performance motors. In cases where the direction of pollution changes or the air conditioning system has a problem, the tunnel jet fan can change the direction of air flow to prevent the accumulation of pollution. The special sensors used in this tunnel jet fan system can also change the direction of air flow to prevent the progress of smoke by detecting fire and high smoke, and thus will also help in terms of tunnel safety.
Flexible tunnel jet fan or banana.
As mentioned above, ordinary models are fixed and the input and output of the jet fan cannot be adjusted. On the other hand, flexible models can have inputs and outputs that are not directly in the same direction. These fans are used in places that have an arch or curvature. In this way, based on the angle in the tunnel, the inlet and outlet of the jet fan are also adjusted to completely cover the entire space.
Induction jet fan.
All jet fan models are cylindrical and take up a lot of space at the top of the tunnel, but if the height of the tunnel is short, you should definitely use induction models that have a cubic and compact appearance. Induction models typically use a centrifugal fan system for air conditioning and have less power output than conventional models.
Components of Parsafan Tunnel Jet Ventilation Fan
Engine.
The main part of the jet fan is its engine tunnel. The tunnel jet fan engine is of the axial type. These motors work with impellers aligned with their axis. The jet fan engine is optimized for indoor use and can continue to operate in the most difficult conditions by using various insulators and protectors.
Shell.
One of the most important parts is the design of the tunnel jet fan shell. The tunnel jet fan shell is designed in a cylindrical shape and this design can maximize the air pressure produced by the engine and impellers and increase the production capacity of the device. The inputs and outputs and all the insulation are inside the tunnel jet fan shell.
Impeller.
The impeller is also one of the parts of the tunnel jet fan next to the engine, and the impeller circulates the air in the tunnel. The impellers are designed to respond to polluted air and high temperatures.
Advantages of using ParsaFan tunnel jet fan
Tunnel air conditioning.
The main task of jet fans, especially Parsafan jet fans, is to completely ventilate the tunnels and remove polluted air from the environment.
Help in case of fire.
The tunnel jet fan must be able to help create a safe escape route for people inside the tunnel in addition to preventing fire from spreading during fires.
Advanced design and new design for engine and jet fan shell makes the maximum power of the device along with the lowest energy consumption.
Use the silencer.
Tunnels echo sound due to closure. Normal ventilation systems have a lot of noise, but jet fans use sound insulation and prevent the comfort of passengers and drivers in the tunnel.
Tunnel jet fan applications
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Ventilation inside the tunnels and removal of pollution.
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import fresh air for people to breathe in cars as well as car engines.
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Prevent the accumulation of smoke and eliminate the risk of explosion and fire.
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Help prevent the spread of fire during fires in tunnels
