Complete Guide to Daily Maintenance and Care of Modular Cleanrooms
The cleanliness and environmental stability of modular cleanrooms directly impact production precision. Daily maintenance should focus on three core areas: cleanliness control, equipment operation and maintenance, and structural protection. A streamlined and efficient approach, highlighting key aspects, can extend equipment lifespan and ensure the production environment meets standards. Specific guidelines are as follows:
I. Daily Basic Cleanliness Maintenance (Daily Must-Do)
1. Clean Area Cleaning: Use lint-free cloths and a dedicated vacuum cleaner to wipe floors, walls, ceilings, and equipment surfaces along the airflow direction to avoid dust generation. Pay special attention to cleaning corners, crevices, and air vents where dust easily accumulates. Ordinary cleaning tools are prohibited.
2. Personnel Management: Personnel entering the cleanroom must wear cleanroom suits, shoes, and masks as required. Bringing dust or debris is prohibited. Cleanroom supplies should be replaced regularly to prevent personnel from introducing contaminants.
3. Environmental Inspection: Check temperature, humidity, pressure difference, and cleanliness (using simple monitoring) daily, record data, and ensure compliance with preset standards (e.g., ISO 4-8 commonly used in the photovoltaic industry). Investigate any fluctuations promptly.
II. Core Equipment Maintenance (Weekly/Monthly)
1. Filtration System: Weekly inspection of FFU (High-Efficiency Unit) filters and pre-filters; observation of differential pressure changes. If the differential pressure exceeds the standard (more than 100 Pa above the initial value), clean or replace promptly. Monthly inspection of filter seals to prevent air leakage.
2. Air Conditioning and Temperature/Humidity Control System: Weekly cleaning of air conditioning filters; checking fan operation and condensate drainage. Monthly calibration of temperature and humidity sensors; inspection of cooling and heating modules to ensure accurate temperature and humidity control.
3. Anti-static System: Weekly inspection of anti-static coatings on floors and walls; testing of grounding resistance to ensure normal static electricity discharge and prevent static electricity from attracting dust and damaging precision components.
III. Structural and Accessory Maintenance (Monthly/Quarterly)
1. Modular Structure: Inspection of the sealing of wall panels, ceiling panels, and door frames. If gaps or looseness are found, reinforce and seal them promptly to prevent external dust infiltration. Avoid impacts and scratches to the enclosure materials; replace damaged materials immediately.
2. Doors, Windows, and Pass-through Windows: Check the sealing of cleanroom doors and the interlocking function of pass-through windows. Regularly clean the inside of pass-through windows to ensure smooth opening and closing and no leaks.
3. Drainage and Piping: Check drainage pipes for blockages to prevent water accumulation and bacterial growth. Inspect all pipe joints to prevent leaks that could affect the clean environment.
IV. Maintenance Prohibitions and Precautions
1. Do not use cleaning agents containing volatile or corrosive substances to avoid damaging cleanroom panels and equipment.
2. During maintenance, take proper cleanliness precautions to avoid generating dust and debris.
3. Establish a maintenance log to record cleaning, replacement, and calibration details for traceability and periodic review. Conduct a comprehensive inspection quarterly to address potential hazards promptly.
Summary: The core of modular cleanroom maintenance is "daily dust prevention, regular equipment maintenance, and long-term structural protection." A streamlined and efficient maintenance process ensures a stable clean environment, reduces operating costs, and is suitable for various production scenarios with high cleanliness requirements.