Learn about the classification and characteristics of clean engineering

Learn about the classification and characteristics of clean engineering

Clean engineering refers to the removal of particulates, harmful air and other pollutants in the air within the corresponding space, and the indoor temperature, humidity, cleanliness, indoor pressure, airflow velocity and airflow distribution, noise and vibration and lighting, static electricity. Controlled within a certain demand range, and the designed room, no matter how the external air conditions of the project change, the room can maintain the characteristics of cleanliness, temperature, humidity and pressure that were originally set.

The cleanliness level of clean engineering ranges from 100,000 to 300,000, which can be divided into industrial, biological, and microbiological laboratories according to their uses; airflow organization can be divided into unidirectional flow and non-unidirectional flow; Divided into vertical flow and horizontal flow. A few are briefly described below.

1. One-way flow (level 10-100)

A unidirectional airflow arrangement is adopted, that is, the airflow in the room is at any point of the same section, and the airflow direction and speed are the same, so that the airflow in the room can be like a 'piston' to remove the dust particles in the room. Take away quickly. To achieve the 'piston' effect, the filter needs to be adapted to the roof to achieve a unidirectional airflow organization direction.

2. Non-unidirectional flow (level 1000-300,000)

The direction of airflow organization is different from that of grade 100 or above. The airflow in the room is non-parallel at an uneven speed, accompanied by backflow or eddy current. It mainly relies on the airflow to continuously dilute the indoor air and gradually discharge the indoor pollution. Purify indoor air. The different purification levels of the clean project are mainly expressed by the difference in the amount of air delivered per unit time.