Pharmaceutical factory FFU 100 level working area of air treatment

(1) Collaborative processing with 10,000-level districts
In pharmaceutical factories, the 100-level area is usually the same process line as the 10,000-level clean area, and the two are the same in terms of temperature, humidity requirements, and operating shifts. In view of this situation, it is often possible to use a set of combined air conditioners to deal with the air supply of 10,000 and 100-level air conditioning systems.
However, due to the presence of FFU (Fan Filter Units) fans in the 100-stage area, its heat output is a factor that needs to be considered. It is necessary to increase the number of air exchanges appropriately, so as to balance the temperature and humidity of the room in the hundred-level area and the 10,000-level area, and the heat and moisture of the process equipment in each room should also be taken into account.
The advantages of this treatment method are obvious, first of all, it makes the air treatment system simple, avoiding the need to set up another small air treatment system or fresh air treatment system, reducing the complexity of the system and construction costs. For example, in the actual construction of some pharmaceutical factories, if the system is set separately for the hundred-level area, it is not only necessary to increase equipment investment, but also needs additional planning space to place equipment and lay related pipelines, etc., and the use of collaborative processing can save these troubles.
(2) Avoided problems and effects
By adopting the above air treatment method, the dry coil in the hundred-level vertical air duct can be avoided, thus avoiding a series of problems caused by the setting of the dry coil. For example, in the dry coil cold source problem, the dry coil in the hundred districts often requires very little frozen water, generally less than 2m3/h, and it is not appropriate to directly use the air conditioning system chilled water (7-12℃ water), because the water temperature is too low, it is easy to cause condensation, and then pollute the vertical air duct environment in the hundred districts, which hurts the cleanliness of the hundred districts; In addition, after installing the dry coil, it may also cause the fan pressure head of the FFU system to be insufficient, making it necessary to re-pressurize to ensure the normal circulation and filtration of the air, which undoubtedly increases the equipment and operating costs.
The engineering practice of many pharmaceutical factories has proved that the effect of such air treatment is relatively good. The temperature, humidity, positive pressure value, and cleanliness of the hundred-level area can be better guaranteed. In the entire assembly line, the 10,000-level area and the 100-level area, as a set of air conditioning systems, can run at the same time, unified control, unified adjustment of temperature and humidity, easy to operate, and high reliability, ensuring that the 100 level work area of the pharmaceutical factory can be stably maintained in a high standard of clean environmental state, ensuring that the key links required for drug production are in a compliant environment. To protect the quality of drugs.