In the current era of booming high-tech industries, clean rooms serve as the "production fortresses" for numerous fields with extremely high requirements for environmental cleanliness, such as precision manufacturing, electronic chips, and biomedicine. Whether the concentration of dust particles inside the clean rooms can meet the standards directly affects product quality, production efficiency, and even the economic benefits and market competitiveness of enterprises. However, many enterprises have encountered thorny problems of excessive dust particles during the operation of clean rooms. Today, Guangzhou Kunling Purification Equipment Co., Ltd. will conduct an in-depth analysis of the underlying reasons and provide professional and effective solutions.
The "Culprits" for Non-compliance
"Full of Loopholes" in Ventilation and Air Conditioning Systems
The ventilation system can be likened to the "respiratory system" of a clean room. Once it malfunctions, dust particles will take advantage of the situation. Insufficient air supply volume fails to create a sufficient positive pressure environment, and unpurified air from the outside will seep in through tiny gaps in doors, windows, and pipeline interfaces, carrying dust and particulate matter and "entering the room uninvited"; moreover, if the high-efficiency filters are damaged or not installed tightly, it's like "opening the city gates wide", allowing dust particles to enter without hindrance, and the pollutants that should have been intercepted outside will spread wantonly inside the workshop.
"Hidden Dangers" Laid in Workshop Construction
In the early stage of clean room construction, the slightest mistake in the construction process will lead to a series of subsequent troubles. If the materials for walls, ceilings, and floors do not have good sealing properties and smoothness, gaps and rough surfaces are very likely to accumulate dirt and become the "breeding grounds" and "launching pads" for dust particles. Daily vibrations and air flow disturbances during production can cause them to be continuously "released" into the air. Furthermore, if the cleaning work during the construction process is not done thoroughly and the residual construction debris and dust are not completely removed, it will "set a trap" for the cleanliness of the workshop from the very beginning.
"Bringing in Chaos" by the Entry and Exit of Personnel and Materials
People are the most active but also potentially the "most dangerous" factor in clean rooms. When staff enter the workshop from the ordinary environment, if they do not wear full sets of clean clothes as required and go through the strict air shower dust removal process, the dander, fibers, and dust attached to the surface of their clothes will fall off and disperse as they walk and operate. The same is true for the entry and exit of materials. If the packaging is damaged and the cleaning does not meet the standards, when the materials are being transported and transferred, the external impurities they carry will be mixed into the "clean camp" of the workshop, destroying the originally low-dust environment.
"Negligence" in Daily Operation and Maintenance Management
Continuous and stable operation and maintenance are the "preservatives" for keeping clean rooms clean. However, in reality, it often fails due to negligence. Insufficient cleaning frequency will cause dust to accumulate on the surfaces of equipment, floors, and corners. The improper selection of cleaning tools, such as mops and rags that shed fibers and raise dust, will instead become "pollution sources". Long-term operation of equipment without regular maintenance and inspection will lead to wear and aging of fans and air ducts, resulting in the accumulation of dust being stirred up and air flow being disrupted, and the settled dust particles will be stirred up and spread again.
Effective "Prescriptions"
Strengthening the "Protective Net" of Ventilation and Air Conditioning Systems
Regularly conduct professional inspections on the air volume and air pressure of the ventilation system to ensure that the air supply volume meets the design standards of the workshop. Timely check and repair the leakage points of pipelines and reinforce the sealing of interfaces. Set a strict replacement cycle for high-efficiency filters. Combine resistance monitoring with visual inspections. Once problems such as damage and ineffective sealing of the frame are found, immediately replace them with new filters and have professional personnel install them according to the standard procedures to ensure a tight fit, making the ventilation system an impregnable "dust-proof barrier".
"Exquisite Construction" and "Deep Cleaning" Working Hand in Hand
When constructing clean rooms, select high-quality building materials with seamless splicing and low electrostatic adsorption. The construction team should strictly control the construction techniques to ensure that the walls are smooth, the floors are seamless, and the ceilings are tightly sealed. Before completion, conduct multiple rounds of in-depth cleaning, combining vacuuming, wiping, and rinsing, and use professional detection equipment to "scan" for residual dust until the initial concentration of dust particles in the workshop meets the standards, leaving no hidden dangers for subsequent production.
Strictly Guarding the "Entry and Exit Checkpoints" of Personnel and Materials
Improve the air shower facilities at the entrance of the workshop, set an appropriate duration and wind speed to blow away the dust on the surface of personnel's clothes in all directions. Strengthen personnel training to make them firmly remember the correct wearing specifications of clean clothes and the code of conduct in the workshop. For materials, set up a material buffer area, implement double packaging, surface cleaning and disinfection, and random inspection processes. Only materials that pass the "cleanliness test" can enter the core production area, cutting off the dust input channels from the source.
"Meticulous" Operation and Maintenance Management
Formulate a detailed cleaning plan, divide different areas into different cleaning levels and frequencies, use cleaning tools that do not shed fibers and are anti-static, and cooperate with vacuum cleaning equipment to efficiently remove dust. Implement the "life cycle" maintenance for equipment, regularly shut down and disassemble key components for in-depth dust removal, lubrication, and adjustment. Establish an operation and maintenance ledger to record various parameters and maintenance situations, and use meticulous operation and maintenance to make dust particles in the workshop have nowhere to hide.
Meeting the standards for dust particles in clean rooms is a "tough battle" that requires multi-party coordination and perseverance. From controlling the source of construction to strictly adhering to every detail in daily operation, Guangzhou Kunling Purification Equipment Co., Ltd., relying on its professional technology and rich experience, helps enterprises build a solid foundation for cleanliness, ensuring that workshops can produce high-quality products in the optimal environment and move forward steadily in the fierce market tide. If you are currently troubled by dust problems in clean rooms, please feel free to contact us to explore the path to cleanliness together.