Fan Selection Plan for Air Purification Equipment

  With the fast development of technology, indoor ventilation equipment has been continuously improved and upgraded. Fresh air system and air purifier now are effective tools for people to tackle the problem of indoor pollution. Different from air conditioning with merely cooling and heating function, air purifier and fresh air system belong to more professional ventilation equipment.

Fan, as the core of purification equipment, is mainly aimed to make air circulate, suck in the air with pollutants, filter it, and then blow out the clean air. Therefore, choosing a durable fan with excellent performance is particularly crucial.

Air purifier, also known as air cleaner, air filter, purifier and so on, is a kind of household electrical appliances that is able to absorb, decompose and convert air pollutants (mainly including PM2.5, dust, pollen, peculiar smell, formaldehyde of decoration pollution, bacteria, allergens, etc.) and can effectively improve air cleanliness. It can be used in several places including homes, companies, buildings, industries, etc. 

Operation principles: One fan draws the air from the room into the device, which purifies the air using various filters. The other one returns the clean air to the room. This requires particularly quiet-running fans that can be precisely controlled to suit the given situation.

Application Scenes of Fan For Air Purifier

Centrifugal Fan With Forward-curved Blades

Installing forward-curved centrifugal fans on air purification equipment is a good choice. Forward-curved centrifugal fan with double inlet presents the characteristic of large air volume and low noise. Forward-curved centrifugal fan’s structure is more complicated than that of backward-curved centrifugal fan. It needs to run with volute, at the same time, it costs more.

Centrifugal Fan With Backward-curved Blades

At present, centrifugal fans with backward-curved blades are most widely used in air purifiers. With the fan in operation, air flows straight in and straight out or back in and up out or side out. Its structure has the advantages of simple form and low cost.

 

 

Hot Models For Air Purifier:

Model	Type	Air Volume	Air Pressure
R2E190	AC backward-curved centrifugal fan	150-500m3/h	80-250Pa
R2E225	AC backward-curved centrifugal fan	400-1000m3/h	200-450Pa
R2E250	AC backward-curved centrifugal fan	500-1400m3/h	200-500Pa
R3G190	AC backward-curved centrifugal fan	120-600m3/h	30-450Pa
R3G225	AC backward-curved centrifugal fan	300-1100m3/h	70-550Pa
R3G250	AC backward-curved centrifugal fan	460-1800m3/h	130-1100Pa

The advantages of fans from ebm-papst in air purifiers:

• Extremely quiet operation thanks to optimized flow through the impeller
• High efficiency thanks to enhanced ventilation technology and new EC motors
• Unrivaled compactness
• EC fans with two speed levels or infinitely variable control
• Robust design and maintenance-free operation

Fresh air system is a set of independent air handling system composed of air supply system and exhaust system. The fresh air system uses special equipment to supply fresh air to the closed room through one side of the system, discharges stuffy air through the other side of it to the outside, and then a "fresh air flow field" will be formed indoors, which will meet the needs of indoor fresh air ventilation.

Implementation plan: Installing fan with high wind pressure and large flow on the fresh air system. When in operation, the system will use mechanical strengthen to supply fresh air indoors through one side of the system and to discharge stuffy air through the other side of it to the outside using specially designed exhaust fan, therefore a "fresh air flow field" is formed in this system. While supplying air, the system is able to filter, disinfect, sterilize, oxygenate and preheat the air from the outside (in winter). We will set the fan parameters according to the requirements, and provide users with a low-energy consumption solution without affecting the operation performance of the system.

 

Types of Fresh Air System

Ceiling Fresh Air Fan

Domestic fresh air fan is mainly ceiling fan, which presents the characteristics of saving space and low noise. Most of ceiling fresh air system use centrifugal blowers with forward-curved blades as a strong tool to achieve air input and output.

Cabinet Fresh Air Fan

Cabinet fresh air fan is usually used in relatively large rooms, such as office halls, etc. Compared with its large inlet air volume, the outlet air is slightly small, so that a positive pressure is formed in the room. There is also one-way air inflow, indoor positive pressure, and wind force comes out from door and window cracks.

Recommended Ebmpapst models:

Wall-mounted Fresh Air Fan

Wall-mounted fresh air fan is suitable for small-sized apartment because of its small air output and easy installation.

Recommended Ebmpapst models:

Smart Fresh Air Controller

The multifunctional intelligent controller can be used for the intelligent control of ceiling fresh air fan, air conditioning, dehumidifier, fan coil and other equipment. It is installed on the wall covered bdy standard 86 boxes. We can directly control the three-speed AC220 fan through the relay, or use RS-485 to connect the electric control board in order to control the fan. The product has a built-in sensor board, which can be connected to PM2.5, PM10, CO2, TVOC, temperature, humidity and other high-precision sensors. It can support a variety of output modes, which are suitable for different fans. The controller is equipped with a 4-inch LCD display screen to display the equipment operation status and detection data in real time, and the wind speed and mode of the fan can be adjusted by touching the key.

Application Scenes of Fresh Air System

 

System Advantages:

2. 24-hour fresh air from the outside nature and fresh air;

3. Ensured health of people in the room;

4. The air volume controlled by the balanced air inlet and exhaust outlet is able to save energy and bring about higher ventilation efficiency.

System Advantages

1. The air volume controlled by the balanced air inlet and exhaust outlet is able to save energy and bring about higher ventilation efficiency;

2. It can be used together with the air conditioning system in winter and summer, and can also be used individually in spring and autumn.

Entertainment Use of Fresh Air System

System Advantages:

1. It is able to prevent the spread of air pollution in closed environment;

2. Air replacement can be realized by means of down supply and up exhaust;

3. The mobile air supply outlet can ensure the uninterrupted feeding of fresh air and prevent incomplete input of fresh air to dead corners.

 

Hospital And Operating Room Use of Fresh Air System

System Advantages:

1. It can achieve constant temperature and humidity or simply provide fresh air in accordance to the requirements of the operating environment;

2. It can realize on-demand control of fresh air volume in each room;

3. Using the special intelligent control system software, all hosts can be adjusted and controlled in the remote monitoring console, their operation status can be monitored, each host can realize intelligent induction adjustment, and can effectively monitor and manage the system remotely.