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Key points of the design and decoration project for industrial purification workshops
2026/8/14
The following are the core aspects and key points of this project:
1. Pre-planning and design principles
- Demand analysis and parameter determination: Clearly define the production process flow, determine the cleanliness level (such as according to the ISO 14644 standard), temperature and humidity accuracy, air change frequency, and anti-static requirements, etc. Core parameters.
- Functional zoning and flow line design: Rationally divide the core production area, auxiliary functional area (such as material buffer room, personnel purification room), and non-clean area. Design smooth personnel and logistics flow lines to avoid cross-contamination. Environmental and pressure control: Set a gradient pressure difference from "clean area → buffer area → non-clean area → outside", with the pressure difference between adjacent areas typically ≥ 5 Pa, and the core area to the buffer area ≥ 10 Pa to prevent air from the lower cleanliness area from flowing back.
2. Core decoration materials and construction
- Wall and ceiling system: Use materials with good air tightness, not prone to deformation, and not dust-producing, such as 50mm thick rock wool color steel plate, glass fiber board, or aluminum profile board. The surface should be smooth and free of glare, and the corners need to be transitioned with arc aluminum profiles (radius ≥ 50mm) to reduce dust accumulation dead corners. Floor system: Commonly used are epoxy self-leveling or anti-static PVC flooring, requiring wear resistance, slip resistance, easy cleaning, and not prone to accumulate static electricity. Anti-static flooring resistance is usually controlled at 10⁶~10⁹ Ω, and it should be reliably connected with conductive copper foil mesh and grounding system. Door and window engineering: Use air-tight stainless steel or aluminum sealed doors, which should open towards the higher cleanliness area and be equipped with a door closer. Exterior windows should use double-layer glass fixed windows, and observation windows should mostly use double-layer tempered glass, and the window should be level with the inner wall, not set a window sill.
3. Purification air conditioning and mechanical systems
- Air purification system: Use multi-level filtration (initial G4 → medium F8 → high H13/H14), and configure FFU (fan filtering unit) or laminar hoods according to cleanliness requirements. In terms of air flow organization, high cleanliness areas (such as ISO 3-5 level) mostly adopt vertical or horizontal unidirectional flow (laminar), while medium and low cleanliness areas adopt non-unidirectional flow (random flow) through air change frequency to dilute pollutants. Electrical and intelligent: Use cleanroom-specific lighting, with illuminance set according to regional requirements (such as 500 lux in the core area, 300 lux in the auxiliary area). Install environmental monitoring systems (real-time monitoring of PM2.5, temperature, humidity, pressure difference, etc.) and door access video linkage system. Water supply and drainage and fire protection: Pure water pipelines mostly use 316L stainless steel, and drainage should be equipped with anti-backflow devices and water storage bends. The combustion performance of decoration materials should comply with fire protection regulations, and install early smoke detection and gas fire suppression systems, with emergency lighting duration ≥ 90 minutes.
4. Construction control and acceptance maintenance
- Dust-free construction management: During the construction process, strict clean control should be implemented, and dust-free construction techniques should be adopted. Nodes such as pipeline passing through walls and floors must undergo strict concealed and sealed treatment. System commissioning and testing: After completion, conduct dynamic, static, and dynamic tests, use particle counters to detect the concentration of suspended particles, and conduct leakage rate, noise, pressure difference, etc. performance tests. Later maintenance: Develop strict cleaning and disinfection procedures, regularly replace filters, calibrate equipment, and provide standardized training for personnel entering the clean room.
Due to the cost of purification workshops being affected by 15 or more variables such as cleanliness level, air flow organization, material selection for the enclosure structure, and filter system configuration, it is recommended to establish a BIM model for pipeline integration during the project implementation and prioritize the selection of professional suppliers with successful delivery performance in the relevant industry.
