Clean room is a multifunctional complex body, clean room engineering is an interdisciplinary, multi-field, comprehensive engineering. Because of the high technical difficulty and high engineering cost of clean room, we always pay attention to clean room design when implementing clean engineering. Generally speaking, clean room design should follow the four principles of "three not one".

First, do not bring: do not bring any dust into the clean room.

Follow this principle, when the clean room is designed, the following work should be done:

1, the high efficiency filter is installed correctly, there will be no dust leakage.

2, keep the positive pressure of clean room relative to the outdoor, only let the indoor polluted air out, can not let the outdoor air through the gap into the clean room.

3. Before entering the clean room, the personnel must do a good job of cleaning, replacing clean clothes, and passing through the air shower room, so that they can enter.

4. Materials and equipment can be cleaned before entering the clean room.

Two, do not produce: in the clean room to produce any dust.

Following this principle, the following aspects should be paid attention to in the design of clean rooms:

1. Do not use decorative materials on the ground, walls and ceiling that are easy to produce dust and absorb dust.

2. Do not use materials and equipment that are easy to produce dust.

3, in many clean rooms, people are the source of pollution. Strict clean room management, control the number of personnel, avoid unnecessary movement, personnel should wear clean clothes.

Three, no accumulation: in the clean room to accumulate any dust.

Following this principle, the following aspects should be paid attention to in the design of clean rooms:

1, the corner is designed into a circular arc, avoid dust accumulation, if it is flat, not only easy to accumulate dust, but also difficult to clean.

2, clean room should try not to expose the air duct and pipeline.

3. Develop cleaning management system, clean clean room regularly, maintain clean air conditioning system regularly, and avoid dust accumulation.

Four, to dust: quickly remove clean indoor dust.

Following this principle, the following aspects should be paid attention to in the design of clean rooms:

1. Set an exhaust device near the place where dust is produced.

2. Increase the number of air changes.

3. Adopt appropriate airflow form and indoor layout to avoid dust standing on the product.