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Introduction: Cleanrooms and dust-free environments are commonly referred to as “cleanrooms,” with similar terms including cleanrooms and clean factories. Although “cleanroom” is a widely used term, it’s important to clarify that it holds a professional connotation, unlike the more informal term “purification workshop.”

Defining Cleanrooms:

Cleanrooms are enclosed spaces where factors such as air particulate levels, temperature, humidity, pressure, and noise are meticulously controlled to meet specific requirements. The primary hallmark of a cleanroom is its adherence to defined air cleanliness standards. They are prominently used in sectors like pharmaceuticals and electronics.

Key Terminology in Cleanroom Environment:

1. Cleanliness Level: This term refers to the permissible statistical count of suspended particles of a specific size within a given volume of air in a clean environment.
2. Technical Interlayer: A construction corridor that is predominantly separated by horizontal components and utilized for installing pipelines and other facilities.
3. Technical Passage: A construction corridor that mainly relies on vertical components to create separations, offering space for the installation of pipelines and facilities.
4. Building Duct: Comprising building components, building ducts are integral air pathways within a cleanroom’s design.
5. Static Testing: This test is carried out when the cleanroom’s air purification and conditioning system is operational, and process equipment is installed, all while excluding production personnel from the cleanroom environment.
6. Dynamic Testing: This type of testing takes place when the cleanroom is actively engaged in its regular production processes.
7. High-Efficiency Gas Filter: A gas filter designed to achieve gas particle content of equal to or less than 0.5 micrometers and a particle count of ≤3.5 particles per liter after filtration.

Cleanroom Construction Sequence:

The construction of cleanrooms must adhere strictly to the procedures outlined in national standards. The construction sequence is as follows:

1. Completion of the primary structural elements and enclosing walls of the building.
2. Installation of external doors and windows.
3. Thorough site cleaning.
4. Rigging and fitting of various pipelines, ducts, and electrical bridge cranes.
5. Hanging of ceiling suspension rods.
6. Installing pipelines followed by pipeline pressure tests and insulation.
7. Setting up ducts, performing cleaning, leakage inspections, and applying insulation.
8. Installing electrical bridge structures and configuring electrical piping.
9. Erecting the framework for the ceiling.
10. Constructing the framework for lightweight partition walls.
11. Placing air supply outlets and electrical lighting, while ensuring protection with plastic film.
12. Fixing wall panel materials for wall decoration.
13. Installing internal doors and windows.
14. Attaching ceiling panels.
15. Covering lighting fixtures with appropriate equipment covers.
16. Executing floor finishing and decoration.
17. Incorporating purification air conditioning equipment and process machinery.
18. Installing pipelines and ensuring airtight sealing at the joints between equipment and building components.
19. Thoroughly cleaning the interior and equipment to prevent dust accumulation.
20. Installing primary and intermediate efficiency filters.
21. Initiating air conditioning equipment and conducting air blowing within ducts.
22. Installing high-efficiency filters.
23. Establishing air, water, and gas supply systems.
24. Placing diffuser air supply outlets.
25. Concluding the cleanroom air conditioning system testing and fine-tuning.

Conclusion: Understanding the scientific construction methods, procedures, and their precise sequencing is pivotal in ensuring successful high-quality cleanroom projects. Adhering to these methodologies guarantees efficient utilization of construction time, optimal engineering quality, cost savings, streamlined management, and the realization of qualified cleanroom projects.