• Frame material

  The frame of the clean shed is usually made of industrial aluminum profiles, stainless steel square or iron square multi-layer pickled electrostatic spraying materials, which have good corrosion and rust resistance, and at the same time guarantee the beauty and generosity of the clean shed. Aluminum profiles are widely used because of its non-rusting, non-dust-producing properties, and through CNC punch press equipment processing, to ensure the accuracy of the precision of up to ± 0.01mm, thus ensuring the sealing performance of the accessories of the clean shed.

• Sheet material

  The common plates used in the clean room include cold rolled steel plate (A3 plate) and stainless steel plate (SUS201, SUS304, SUS316, etc.), and the thickness of the plate is generally 0.8~1.5mm.The selection of these materials will have a direct impact on the cost of the clean room, and the configurations of different materials and sizes will also vary.

• Surrounding material

  Clean shed around the perimeter can usually use anti-static drapes or anti-static plexiglass panels, these materials not only have a good anti-static effect, but also has a high degree of transparency and clear mesh, providing a good insulation and dust in addition to static electricity performance.

• FFU and Filtration System

  The top of the clean room is usually equipped with FFU (Fan Filter Unit), which is the core purification component of the clean room.FFU adopts low-noise centrifugal fan with long life, low noise, maintenance-free, low vibration and adjustable speed. The high efficiency filter (HEPA) is set at the end of the fan air supply unit, which has the advantages of small initial resistance, large dust capacity, high filtration efficiency, long service life and easy replacement.

• Other features

  The design of the clean shed also includes the provision of universal wheels, which makes it easy to move around and adapt to production needs. The modular design makes it easy to upgrade the purification level of the clean room, and has strong expandability and reuse value.

• Classification

  Clean shed is mainly divided into two categories: industrial clean room and biological clean room. Industrial clean room is mainly used to control the pollution of inanimate particles, commonly used in precision machinery, electronics, aerospace, high purity chemistry, atomic energy, optical magnetic products and other industries. Biological clean room is mainly used to control micro-life forms (such as bacteria) and inanimate particles (such as dust) on the contamination of the work object, commonly used in health care, biopharmaceutical and other fields. In addition, there are unidirectional flow (laminar flow) clean rooms, which are characterized by airflow in a single direction to ensure the cleanliness of the work area.

• Features

  The clean shed is characterized by quick installation, short construction period, low cost and easy movement. Its modular design makes it easy to upgrade the cleanliness level and expand the space, and has a high reuse value. The interior of a clean room is usually equipped with high efficiency filters (HEPA) and fan filtration units (FFU) to ensure air cleanliness and proper flow rate. In addition, clean rooms are fitted with gimbals for easy mobility when needed.

• Applications

  Clean rooms are widely used in a variety of fields such as electronics manufacturing, food production, medicine and health, and biological research. In the electronics manufacturing industry, clean rooms are used to protect sensitive components from dust contamination; in the food industry, they help to maintain the cleanliness of the food production environment; and in the medical and healthcare field, clean rooms provide the necessary environment for operating rooms and aseptic operations. In addition, clean rooms are used for laboratory research, especially in environments that require specific levels of temperature, humidity, illumination and cleanliness.

Installation Steps

• Preparation: First of all, the installation environment should be cleaned and sterilized to ensure that the ground is level and free of debris and dust. At the same time, prepare the required materials and tools, such as the frame of the clean shed, filters, sealing materials and so on.

• Installation of frames: According to the design and specifications of the cleanroom, install brackets and frames to ensure that they are stable and reliable. If the clean room is large, it may be necessary to add support points in the center to ensure safety and stability.

• Installation of filters and FFU fans: Install the high-efficiency filters first, and then connect the fans to ensure air circulation and filtration effect. Check the inside of the clean room for air leakage or other problems and make necessary adjustments.

• Connecting power supply and debugging: Connect the clean shed to the power supply correctly and conduct system tests, including air conditioning system operation, cleanliness test and equipment function test.

• Maintenance and upkeep: Regularly inspect and maintain the clean shed, clean the filters and discharge pollutants in time to ensure its long-term stable operation.

Precautions

• Installation location: Choose an appropriate location for the installation of the clean room to ensure that the surrounding environment is suitable to avoid the presence of large amounts of dust, mold or other sources of contamination.

• Cleaning and disinfection: Before installation, make sure the clean room itself is clean. Clean and sanitize the interior surfaces of the clean room, including walls, ceilings, filters and workbenches, to ensure cleanliness inside the clean room.

• Personnel and goods management: Dust-prone items such as cardboard boxes and mops are not allowed to be stored inside the clean room. Personnel and items entering the clean room must be decontaminated.

• Temperature and humidity control: Adjust the temperature and humidity of the clean room according to the demand of using environment and keep it within the control range.

• Requirements for installers: Installers should wear dust-free clothes, protective shoes and safety helmets when installing in the clean room.

• Sealing: Install sealing materials in the openings such as doors and windows of the clean room to ensure good sealing effect and avoid air leakage and contamination.

• Testing and acceptance: After the installation is completed, use professional testing instruments to test the air quality in the clean room to ensure that the cleanliness, temperature, humidity and other parameters meet the requirements.

The main function of a clean room is to provide a controlled micro-environment for the production of sensitive items in order to reduce the level of airborne contaminants such as dust particles and microorganisms, thus avoiding adverse effects on product quality. Therefore, its testing is one of the key steps in ensuring product quality.

Items tested in the clean room

• Dust Particle Count

  Dust particle count testing is a key indicator for evaluating the cleanliness of a clean room. By using a dust particle counter, the number of particles greater than or equal to a specified particle size in a certain volume of air is detected to determine whether the clean room has reached a predetermined cleanliness level.

• Sedimentation and Planktonic Bacteria

  Sedimentation bacteria detection is a method of collecting airborne microorganisms on a culture medium and counting the number of colonies after a period of incubation. Planktonic bacteria testing uses a sampler to collect airborne microorganisms and counts them in a culture to assess the level of microbial control inside the cleanroom.

• Temperature and Humidity

  The temperature and humidity inside the cleanroom has a significant impact on product production and therefore needs to be regularly checked and maintained within a stable range.

• Air Velocity and Volume

  Air velocity and air flow testing helps to ensure proper air distribution and ventilation, which is critical to maintaining cleanliness inside the cleanroom.

• Noise

  Noise levels are checked to ensure a quiet working environment for staff and also reflect the quality of the construction of the cleanroom.

• Differential Pressure

  Differential pressure testing ensures that the pressure inside the clean room is lower than the surrounding environment, which helps to prevent the intrusion of external contaminants.

Testing Instruments

Commonly used instruments for clean room testing include dust particle counters, bacterial samplers, differential pressure meters, anemometers, illuminance meters, temperature and humidity meters, and so on. These instruments need to be calibrated regularly to ensure the accuracy of the test data.

Testing Process

The testing process usually consists of four stages: preparation, testing, data analysis and result evaluation. Before testing, it is necessary to ensure that the environment inside the clean room is stable, and after testing, the data is analyzed scientifically to determine whether the clean room meets the technical requirements.