Air Purifier Environmental Test Chamber’S Air Circulation Knowledge

The air purifier environmental test chamber is a test equipment used to test the performance of the air purifier. During the working process of the air purifier environmental test chamber, air circulation is often required. What is the process of air circulation here? The following small series will introduce to you.

Air circulation in the air purifier environmental test chamber:

1. The air circulation of the air purifier environmental chamber includes internal circulation and external circulation. Internal circulation refers to purifying the air in the inner cabin and controlling temperature and humidity. Before the test, set the temperature and humidity of the inner cabin through the control panel, open the air valve of the inner cabin, and turn on the variable frequency fan, electric heater and wet film humidifier.

2. The air generates positive pressure through the frequency conversion fan, enters the internal circulation, and passes through the surface cooler and the frequency conversion fan in turn. After the flow is controlled by the flow meter, it is heated by the electric heater, and then humidified by the wet film humidifier. The temperature and humidity are suitable. The air then enters the multifunctional air filter.

3. Finally, the clean air is sent to the inner cabin through the inner cabin air valve. At the same time, the mixing fan at the top of the inner cabin makes the gas form an irregular swirling flow, which speeds up the gas mixing and makes no dead ends in the cabin. After several cycles Meet the cleanliness required by the experiment.

4. During the test, close the air valve in the inner cabin and open the air valve in the outer cabin at the same time. The air in the outer cabin enters the system through the air valve and returns to the outer cabin after being processed. This cycle is called outer circulation and is used to indirectly control the temperature of the inner cabin. The indirect temperature control method of the outer cabin can effectively avoid the change of temperature and humidity caused by the heat exchange between the air in the inner cabin and the outside world during the experiment, thus affecting the volatilization law of pollutants.

Why do you need air circulation when testing an air purifier? The reason for this is very simple, it is to reduce the influence of the outside air in order to achieve the accuracy of the experiment. Today I will introduce it to you here. If you have any questions about this, you can leave a message below at any time, or send a private message to the editor.