Cleanroom refers to a room where the concentration of suspended particles in the air is controlled and graded. It is designed, constructed, and operated so that particles entering, generated, and retained in the room are controlled.

PART 01

Cleanrooms

By cleanliness level

Divided by cleanliness levellevel 1, 2, 3, 4, 5, 6, 7, 8, 9. Grade 9 is the lowest grade.

Categorized by airflow organization

Cleanroom can be divided into three categories according to the airflow organization:Unidirectional flow, laminar flow, Cleanroom. An airflow with parallel flow lines in a single direction and uniform velocity across the cross-section. One-way flow perpendicular to the horizontal plane is vertical unidirectional flow with the horizontal plane parallel to the unidirectional flow is horizontal unidirectional flow. Turbulent flow non unidirectional flow cleanroom where the airflow does not meet the definition of unidirectional flow cleanroom. Mixed flow cleanroom:unidirectional flow and non-unidirectional flow combination of airflow cleanroom.

Categorized by suspended airborne particles to be controlled

Categorized by the suspended particles in the air to be controlled, the cleanroom can be divided intoIndustrial cleanroom and biological cleanroom. Industrial cleanroom it is the main control parameters are temperature, humidity, wind speed, airflow organization, cleanliness. Biological cleanroom it is the same as the industrial cleanroom is different from the control parameters increased control of the concentration of indoor bacteria.

The detection status of the cleanroom can be divided into three categories

(1)Null state:A fully equipped cleanroom with all piping connected and running but no production equipment, materials or production personnel.

(2)Static:The production equipment has been installed in a fully equipped cleanroom that has been fully constructed and tested in a far turn as agreed by the owner-supplier, but there are no production personnel on site.

(3)Dynamic:The facility is in a condition to operate in the prescribed manner and has the required personnel present to work in the prescribed manner.

PART 02

Cleanroom completion acceptance

Cleanroom after the completion of the production and the need for performance measurement and acceptance;in the system overhaul or update, but also to carry out a comprehensive determination of the measurement of the cleanroom before the determination of the profile must be a comprehensive understanding. The main content includes purification of air-conditioning system and process arrangement of flat, sectional and system diagrams of the air environment conditions cleanliness level temperature, humidity, wind speed and other requirements of the air handling program to send back the wind, exhaust volume and airflow organization, people and things purification program cleanroom use of the factory and its surrounding pollution, and so on.

Cleanroom acceptance of the completion of the appearance of the inspection should be in line with the following requirements

1, all kinds of piping, automatic fire extinguishing devices and purification and air-conditioning equipment air conditioners, fans, purification and air-conditioning units, high-efficiency air filters and air blowing rooms, etc. should be installed correctly, securely and firmly. The installation should be correct, firm and tight, and its deviation should be in accordance with the relevant regulations.2 The connection of high and medium efficiency air filters with the supporting frame and the connection of air ducts and equipment should be reliably sealed.3 All kinds of adjusting devices should be tight, flexible and easy to operate.4 Purification of air conditioning box, static pressure box, duct system and the supply and return vents are free of dust.5 The internal wall, ceiling surface and floor of the cleanroom should be smooth, level, even color and no dust, Smooth, even color and dust-free floor without static electricityphenomenon. 6,The air supply and return port and all kinds of end devices, all kinds of piping, lighting and power line piping, and process equipment, etc. through the cleanroom through the sealing of the place should be tight and reliable. 7, all kinds of distribution panels in the cleanroom, cabinets and electrical piping into the cleanroom, the mouth should be sealed reliably. 8, a variety of painting, insulation work should be in line with the relevant regulations.

Commissioning for Cleanroom Manufacturing Completion and Acceptance

1,Where there is a requirement for test run of the equipment stand-alone test run should be in line with the relevant provisions of the technical documents of the equipment. The common requirements of mechanical equipment should also be consistent with the relevant provisions of the state and the construction and installation of machinery and equipment related to industry standards. Usually the cleanroom is required to carry out stand-alone test run of the equipment are air conditioning units, air supply pressurized blower box, exhaust equipment, purification bench, electrostatic self-cleaning device, clean drying box, clean storage cabinets, such as local purification equipment, as well as the air blowing shower room, residual pressure valve, vacuum dust cleaning equipment.

2, in the stand-alone test run after passing the air supply system, return air system, exhaust system air volume, air pressure regulator to set and adjust the system to achieve the design requirements for the distribution of air volume. The purpose of this phase of testing is mainly to serve the air conditioning purification system adjustment and balance often need to be repeated many times. The purpose of this stage of testing is mainly to serve the air conditioning purification system regulation and balance often need to be repeated several times. family:Microsoft Yahei">This test is mainly carried out by the contractor responsible for the construction side of the maintenance management personnelEasyin order to follow up in order to familiarize yourself with the system. On this basis, the joint test run of the system including cold and heat sources is generally not less than8h. It is required that the linkage operation and coordination of the various equipment components in the system including purified air-conditioning system and automatic regulator should operate correctly without any abnormality during the coordination process. Coordination process should move correctly without anomalies.

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