Clean room design points:
1. Clean room clean room system:
The indoor air purification system can be divided into horizontal laminar flow, vertical laminar flow and turbulent flow. The choice of airflow form a reference to the convention, and the second depends on the operating parameters of the room.
2. Cleanliness and the number of air changes:
The cleanliness of the room depends on the number of air changes per unit of time, so careful consideration of the nature of the room's work, as well as the requirements of the production process, and then decide to purify the system's technical parameters.
3. Structure:
In order to ensure that the airflow is virtually undisturbed, it is necessary to carry out the structural design, the necessary caution can prevent the accumulation of dust anywhere in the room.
4. Design program:
To determine the design program, it is necessary to carefully consider the nature of the work of the room and the conditions of airflow in it. Dusty workshop should not be used in the form of ground air supply, cleanliness requirements of the workshop should be as far away as possible from other workshops.
5. Material:
As a clean room ceiling, wall and floor materials must not be ruptured, not easy to stain the particles, as well as virtually dust-free materials, in addition to different working conditions according to the room, but also must be considered whether the chemical properties of the material is stable.
6. Pressure and airflow:
In order to ensure the cleanliness of the room, it is necessary to prevent the outside of the contaminated airflow into the room, in order to achieve this purpose, the room must maintain a positive pressure. In order to obtain the required room pressure, it must be supplemented with appropriate fresh air.
7. Auxiliary equipment:
When necessary, you must also place some auxiliary equipment: such as air indicators for the fresh air intake, the transfer window on the partition. These devices must be adapted to the requirements of the room and their function must be really understood.
8. Control of people and things:
People and things are the main source of dust in a clean room, so they must be adequately controlled, for example: before entering the clean room, all the people have to go through the people purification system, change the dust-free clothes, and receive basic education on the function of the purification system.
9. Drainage and air supply units and power supply:
Depending on the workshop to be operated, the necessary drainage and air supply units and power supply must be provided, and these units and the equipment involved must be easy to use and design, and at the same time, must not be difficult for the air purification system.
Clean room decoration and design requirements
A clean room layout
Clean room generally includes a clean area, quasi-clean area and auxiliary area of three parts.
The layout of the clean room can be the following ways:
The outer corridor around: the outer corridor can be windowed and windowless, both for visiting and placing some of the equipment, and some of the corridor is set up in the duty heating. External windows must be double sealed windows.
Inner corridor: clean room in the periphery, and the corridor is located in the interior, the cleanliness level of this corridor are generally higher, and even the same level as the clean room.
Both ends of the type: clean area is located on one side, the other side of the quasi-clean and auxiliary rooms.
Core type: in order to save land, shorten the pipeline, can be the core of the clean area, up and down the left and right by a variety of auxiliary rooms and hidden pipeline space surrounded by this way to avoid the outdoor climate on the impact of the clean area to reduce the cooling and heating energy consumption, conducive to energy saving.
Two, personal purification route
In order to minimize human activities in the operation of the pollution generated by the personnel in the clean area before entering the clean clothes must be replaced and blowing shower, shower, disinfection. These measures are "personal purification" referred to as "people clean".
People clean room in the replacement of clean clothes in the room should be sent to the air, and other rooms such as the entrance side to maintain positive pressure, to the toilet, shower to maintain a small positive pressure, and toilets, showers should be kept negative pressure.
Three, material purification route
A variety of objects must be sent to the clean area before the purification process, referred to as the "thing clean".
Material purification routes and people should be separated from the clean route, if the material and personnel can only enter the clean room in the same place, but also must be separated from the door, the material and the first after the rough purification process.
For the production line is not strong occasions in the middle of the material route can be set up in the middle of the library.
If the production line is very strong, the use of straight-through material routes, sometimes also need to be in the middle of the straight-through route to set up a number of purification, transfer facilities.
In the system design, the material clean room for the coarse purification and fine purification stage because it will be blown down a lot of raw particles, so the relative clean area should maintain a negative pressure or zero pressure, if the risk of contamination of the entrance to the direction of the danger of maintaining a negative pressure.
The above is a small introduction to the clean room design considerations and other knowledge of an illustration, we all know that in the production of the above we need a dry, clean and clean place, clean room is such a place, due to the production of things are not the same, so the design of the clean room requirements are not the same. Clean room can not only provide clean, but also need to keep clean, can be a lot of particles excluded from the outdoor, small introduction to the end here, I hope it can help you.