Clean air flow pattern test

The services provided by the company in the test and testing of clean room airflow patterns include

• Airflow velocity test

• Airflow unevenness test

• Airflow parallelism test

The airflow organization form in the clean room is an effective way to improve the cleanliness of the clean room. It is necessary to test the parallelism of the airflow as one of the three elements of unidirectional flow (airflow velocity, airflow unevenness, and airflow parallelism). For the detection of indoor airflow pattern, it is actually a key issue to check whether the airflow organization method in the clean room can meet the cleanliness of the clean room. If the airflow pattern in the clean room cannot meet the requirements of airflow organization, the cleanliness of the clean room is also at risk.

We use imported smoke devices, which are easy to use and easy to learn indoor airflow patterns. We use different solutions for different types of clean rooms.

The airflow organization in the clean room is generally in the form of top delivery and bottom return. The following issues need to be addressed during testing:

• Measurement point arrangement method.

• Use a smoke generator or a single-wire method to observe and record the direction of the airflow point by point, and mark the direction of the airflow on the cross-sectional diagram with the measurement point arrangement.

• Compare the current measurement record with the previous measurement record. If there is any inconsistency or contradiction with the indoor airflow organization method, the cause should be analyzed and handled.

Streamline parallelism detection (used for the detection of streamline parallelism in unidirectional clean rooms)

• A single-wire line can be used to observe the airflow direction of the air supply plane. Generally, each filter corresponds to one observation point.

• Use a protractor to measure the angle of the airflow direction deviating from the specified direction: The purpose of the test is to verify the parallelism of the airflow in the entire working area and the diFFUsion performance of the clean room to limit the pollution generated inside. The equipment used includes; isokinetic smoke generator, plumb or level, tape measure, indicator and rack.