6inch duct fan and blowers are both extremely useful devices for humans. They play an important role in ensuring the health of workers, contributing to increasing labor productivity and increasing the life of machinery.
However, many people confuse these two types of fans, so what is the difference between an exhaust fan and a blower? Let's find out with us in the article below.
Exhaust fan is one of the most commonly used ventilation fans in the Vietnamese market. Moreover, With the main function of sucking exhaust gas, smoke, sucking smell, and supplying when fresh, it brings a cool and fresh atmosphere to factories, factories, factories, farming households, etc.
The fan has the main function to suck exhaust gas, hot air, unpleasant odors, and dirt from the places where they are generated to bring it to the outside and at the same time provide fresh air for the interior space. Also, this ensures human health, contributes to increased productivity as well as increases the life of machinery and equipment.
Choose the right exhaust fan for the space
Currently, with the diverse needs of customers, manufacturers have launched many models with different performance capabilities. However, based on the basic structure and working principle, it can be divided into two types: 6inch duct fan and centrifugal fan.
6inch duct fan is a fan line that is constructed with an air inlet and outlet parallel to the axis of the fan. The characteristics of this device are compact, the number of blades often cuts the air directly when the environment is dusty, durable, easy to operate, simple to install...
However, The two types of axial fans commonly used today on the market are indirect axial fans and direct axial fans.
Centrifugal exhaust fan
As an exhaust fan with a large suction force, operating according to centrifugal force with a large number of blades, the motor drives directly or indirectly through the belt, usually located outside the path of the suction airflow, so it can avoid direct dust and dirt. from the wind.
The blower fan is a 6inch duct fan with a special structure for the air to blow out parallel to the fan shaft. Also, With the main function is blowing smoke, blowing hot air, toxic smoke away from the source location, or blowing the air supply in areas especially lacking in oxygen.
Advantages of blower fans
A fan has large air flow, strong blowing ability for quick effect
Stable and durable operation in all environments
Dual function in use in suction or propulsion systems
Compact and flexible design
Easy to use and maintain
6inch duct fan has the main function to blow air, dust, impurities in molding factories, plastic factories, chemical factories, garment factories, etc.
In addition, they are also used to supply fresh air in basements, tanks, sewer pipes, where there is dilute oxygen, ... to ensure the safety of workers.
The air flow of the fan is one of the important parameters to determine in the process of choosing a fan, especially a ventilation fan, to achieve the best efficiency. However, not everyone knows the information about the wind flow and how to calculate the ventilation fan flow.
So, let's learn about this parameter with us and how to calculate it is extremely simple and accurate!
Wind flow is a parameter that represents the volume of air passing through a conduit section in a unit of time or simply understood, this is the amount of wind measured at a location on a route in a given time. certain time.
The wind flow can be calculated as m3/h
Choose the right ventilation fan for the space
Calculate the volume of the place of installation
The volume of the ventilation 6inch duct fan installation space is determined by the formula:
Volume (m3) = Length (m) x Width (m) x Height (m)
The total amount of air required
Tg = X x V (m3/h)
Inside:
Note X is the required number of air changes per hour:
Crowded public places: X = 30 to 40 times/hour.
The production place has machines and equipment that generate high temperatures: X = 40 to 60 times/hour.
Calculate the number of ventilation fans to be installed in the space:
N = Tg / Q (c)
Inside:
Select the type of ventilation fan
Select industrial ventilation fans with air flow greater than or equal to actual needs to ensure optimal fan operation.
The airflow of the ventilation 6inch duct fan depends on the purpose of use, for each purpose, the air flow will be determined according to its formulas.
Ventilation to remove toxic gas
In environments where harmful gases are generated during production, fuel combustion, microbiological processes, chemical paints, etc., the ventilation flow is determined by the following formula:
G = Yc – Yo (m3/h)
Specifically
CO2 can arise from many different causes. The amount of CO2 emitted by a person depends on the labor intensity, so the CO2 exhaust ventilation volume also depends on the labor intensity.
