Hygienic requirements for differential pressure in clean room workshops
Hygienic requirements for differential pressure in clean room workshops
In order to maintain the cleanliness of the clean room from the contamination or contamination of the adjacent room, maintaining a certain air pressure higher than or lower than the adjacent room in the room is an important feature of the clean room different from the general air-conditioned room , is also an important part of the principle of the clean room; relative to the adjacent room ring...
Text label: clean room pressure differential requirements, clean room safety and hygiene
Hygienic requirements for differential pressure in clean room workshops
In order to maintain the cleanliness of the clean room from the contamination or contamination of the adjacent room, maintaining a certain air pressure higher than or lower than the adjacent room in the room is an important feature of the clean room different from the general air-conditioned room , is also an important part of the clean room principle; it is common to maintain a positive static pressure difference relative to the adjacent room environment, both industrial clean rooms and general biological clean rooms, only special biological clean rooms need to maintain negative pressure. When the door and window are closed, the static pressure difference prevents the outdoor pollutants from infiltrating into the clean room modular through the gap; when the door is opened, it is ensured that there is enough airflow to flow outward, and the instantaneous air brought in by the door opening action and people entering is minimized. flow, and when the door is open, ensure that the airflow direction is outward, so as to minimize the pollution brought in; it is not that the greater the pressure difference, the greater the ability to block the penetration of pollution. In theory, the pharmaceutical workshop has 0.22 The pressure difference of Pa can form an airflow velocity of 0.5m/s at the gap. The pressure difference varies greatly from 0-6Pa, and from 6-30Pa, the barrier effect changes very little.
The choice of the positive pressure air volume, that is, the difference between the fresh air volume and the exhaust air volume, is the focus of designers. Influence of pollutant intrusion characteristics during the process; the anti-interference ability of the one-way flow clean room is extremely strong, and its self-cleaning time is extremely short. The determination of static pressure difference generally does not need to consider this problem; the positive pressure must meet the indoor cleanliness level at 0.6m away from the door when the door is opened, and the positive pressure must ensure that the instantaneous intrusion airflow does not penetrate more than 0.6m into the door. Far away; it is not that the larger the pressure difference setting, the better, and specific problems need to be analyzed in detail. If a small pressure difference and a reasonable pressure gradient can be used to achieve the environmental parameter requirements required by the clean area, it will be beneficial to the clean room project. Energy-saving operation brings benefits. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for clean rooms and dust-free workshops.
The number of staff in the clean clean room modular should be strictly controlled to a minimum number. Unrelated people and items are not allowed to enter. Staff do not wear watches and jewelry, and cannot use cosmetics that emit particles. Staff and maintenance managers should strictly implement purification when entering the clean room. Procedures, the clothing worn by personnel in different cleanliness work areas should have different cleanliness grades and colors, and work clothes should be cleaned regularly, and all incoming items should be scrubbed, dusted, disinfected and other necessary purification treatments; clean room staff Good habits should be developed and regular physical examinations; purification systems and equipment, and indoor cleanliness should be regularly tested, and staff should be familiar with the location and use of clean clean room modular safety doors, safety passages, and fire-fighting facilities.
SUZHOU PHARMA MACHINERY CO.,LTD. is trying to institute social good changes this relationship because it averts a firm's resources from its core task of increasing profits.
We humbly ask you to use CUSTOM SOLUTION SERVICES and we guarantee that you would be in a great delight with using the product.
The best way of extraction machine is to get a extraction machine CUSTOM SOLUTION SERVICES.