Clean rooms are necessary areas in different industries but to achieve the cleanliness standards, certain ventilation and organizational techniques need to be implemented. One of the components that meets these obligated requirements is the SBTF-1602 small diameter and large thickness spiral tube. The organ of this article defines what a clean room is and its typology, describes sanitary engineering plans for the degree of cleanliness, airflow and load characteristics and energy efficiency, and last but not the least sanitary aims for clean room air ducts amongst others. We provide a summary at the end.
What is a Clean Room?
A clean room is a closed area in which the level of contaminants (like dust, airborne microbes, aerosol particles, and chemical vapors) is controlled and maintained at very low levels. These restricted environments are necessary in the manufacturing of products in the Pharmaceuticals, Biotech, Electronics, Aerospace, and other such industries even the smallest of foreign particles will spoil the whole product.
Clean rooms are typically classified according to the number of particles in a unit volume of air at a given size. If we say ISP class 1 clean room, then that room has less than 10 particles in 1 cubic meter of air. However, ISO 9 is equivalent to the air in an ordinary room.
Categories of Clean Rooms
Cleanrooms are designed differently based on the sector and contamination control requirements and may include:
- Classified Clean Rooms Type: These rooms are classified according to ISO or Federal Standards concerning particulate levels and find applications in microelectronics manufacturing, pharmaceuticals and other high-precision industries.
- Modular Clean Rooms: These are factory-assembled units that allow flexibility and fast set up. These are suitable for temporary or shifting cleanroom requirements.
- Softwall Clean Rooms: Normally made with reconfigurable materials, these rooms are simple, cheaper and can be modified for other uses more easily.
- Hardwall Clean Rooms: These are permanently fixed with hard materials on the walls and are made in places that require very high cleanliness levels for extended periods.
Measures Address Ventilation Related Cleanliness Requirements
The ventilation system installed in the clean rooms must be carefully thought out with an aim of meeting cleanliness requirements. Such measures include observing.
- HEPA and ULPA Filters: These are High Efficiency Particulate Air (HEPA) and Ultra Low Particulate Air (ULPA) filters which are fundamental in controlling pollution in such rooms.
- Air Changes Per Hour (ACH): How often the air is changed is important due to the prevalent effects of contamination where the higher the ACH value, the better the pollution control.
- Positive Air Pressure: There is a need to insulate the clean room by maintaining higher positive pressure within it compared to that of the surroundings, so as to prevent unwanted substances from entering.
- Laminar Airflow Systems: All the particles in the room are not disturbed as the system allows air to move in one direction.
Principles of Airflow Organization in Clean Rooms
Airflow organization in clean rooms remains an elementary aspect of clean room usability. Principles include:
- Unidirectional (Laminar) Airflow: This technique involves the movement of air in one direction on a single path from the ceiling towards the floor thereby cleansing the room of the particles.
- Non-Unidirectional (Turbulent) Airflow: This is less strict and pulls room air to mix with clean air in order to ‘wash’ the air.
- Airflow Purpose: Right velocity does the work in removal of unwanted substances within the shortest possible time without doing any change to the environment.
- Airflow Pattern: Correct air distribution contour is achieved as a result of the positions of diffusers and return grids.
Load Characteristics and Energy Saving Measures of Clean Rooms
Clean rooms are energy intensive due to the strict control of the room environment therefore it includes heavy energy use offset by some key load characteristics and energy saving measures detail:
- Dynamic Load: Clean rooms have to suit unsteady airborne contamination levels, movement of people, and activity of equipment, which reasonably influences the quality of air.
- Energy Savings Ventilation Heat Recovery/Air-to-air Heat Exchanges: Use of heat exchange units to recycle and recover energy from exhaust air helps lower the cost of use.
- Example of VFD: The speed of work performed by the elements of heating, ventilation, air conditioning, and refrigeration systems is proportional to the storage demand, hence no excess energy is used.
- Temporal Division: The way control of the clean room energy effectiveness and efficiency can be improved is by creating cleanroom zones having different cleanroom parameters.
Normative Requirements for the Air Ducts of Clean Rooms
The systems of air ducts in clean rooms are designed for service of high standards in regard to air quality:
- Sealing and Insulation: Appropriate sealing helps to ensure that contaminants do not affect the airflow, and insulation avoids temperature changes.
- Material Compatibility: Lining Ducts should be made of sufficing material so that there should not be any shedding of particles or heat reactions.
- Smooth Interior Surfaces: This minimizes the deposition of particles and makes methods of cleaning easy
- Regular Maintenance: Performance of routine maintenance includes cleaning and inspection to avoid accumulation of particles and the growth of microbes.
Conclusion
In the search for better effective clean rooms and control of internal pollution, the SBTF-1602 small diameter and large thickness spiral tube is of great importance. Clear knowledge regarding the basic principles related to performance of clean rooms is very important in improving work efficiency and ensuring contamination-free work environments. The development of construction accessories such as the SBTF-1602 spiral tube is a testimony to the determination to ensure that all efforts put towards preventing contamination and conserving energy remains paramount in the treatment industry.
