Electrical facilities are the main components of clean rooms and are important public power facilities that are indispensable for the normal operation and safety of any type of clean room.
Clean rooms are the product of the development of modern science and technology. With the rapid development of science and technology, new technologies, new processes, and new products are constantly emerging, and product precision is increasing day by day, which puts forward more and more stringent requirements for air cleanliness. At present, clean rooms have been widely used in the manufacturing and research of high-tech products such as electronics, biopharmaceuticals, aerospace, and precision instrument manufacturing. The air cleanliness of the clean room has a great impact on the quality of products with purification requirements. Therefore, the normal operation of the purification air conditioning system must be maintained. It is understood that the qualification rate of products produced under specified air cleanliness can be increased by 10% to 30%. Once there is a power outage, the indoor air will soon be polluted, seriously affecting product quality.
Clean rooms are relatively sealed bodies with large investments and high product costs, and require continuous, safe and stable operation. A power outage in electrical facilities in clean room will cause interruption of air supply, the fresh air in room cannot be replenished, and harmful gases cannot be discharged, which is detrimental to the health of the staff. Even a short-term power outage will cause a short-term shutdown, which will cause huge economic losses. Electrical equipment that has special requirements for power supply in a clean room is usually equipped with an uninterruptible power supply (UPS). The so-called electrical equipment with special requirements for power supply mainly refers to those that cannot meet the requirements even if they use the automatic backup power supply mode or the emergency self-starting mode of the diesel generator set; those that cannot meet the requirements with general voltage stabilizing and frequency stabilizing equipment; computer real-time control systems and communication network monitoring system, etc. In recent years, power outages have occurred frequently in some clean rooms at home and abroad due to lightning strikes and instantaneous power changes in primary power load, resulting in large economic losses. The reason is not the main power outage, but the control power outage. Electrical lighting is also important in clean room design. Judging from the nature of the production process of clean room products, clean rooms generally engage in precision visual work, which requires high-intensity and high-quality lighting. In order to obtain good and stable lighting conditions, in addition to solving a series of problems such as lighting form, light source, and illumination, it is important to ensure the reliability and stability of the power supply; due to the airtightness of the clean room, the clean room requires not only electrical. The continuity and stability of lighting ensure the safe and reliable operation of clean room facilities and the smooth and safe evacuation of personnel in the event of an emergency. Backup lighting, emergency lighting, and evacuation lighting must also be provided in accordance with regulations.
Modern high-tech clean rooms, represented by clean rooms for the production of microelectronic products, including clean rooms for the production of electronics, biomedicine, aerospace, precision machinery, fine chemicals and other products, not only require increasingly stringent air cleanliness requirements, but also require clean rooms with large areas, large spaces, and large spans, many clean rooms adopt steel structures. The production process of clean room products is complex and operates continuously around the clock. Many product production processes require the use of multiple types of high-purity substances, some of which belong to the flammable, explosive and toxic gases or chemicals: The air ducts of the purification air-conditioning system in clean room, the exhaust and exhaust ducts of the production equipment, and various gas and liquid pipelines are crisscrossed. Once a fire occurs, they will pass through various types of air ducts spread rapidly. At the same time, due to the tightness of the clean room, the heat generated is not easy to dissipate, and the fire will spread quickly, causing the fire to develop rapidly. High-tech clean rooms are usually equipped with a large number of expensive precision equipment and instruments. In addition, due to the requirements of cleanliness of people and objects, the general passages in clean areas are tortuous and difficult to evacuate. Therefore, the correct configuration of safety protection facilities in clean rooms has increasingly received great attention in design, construction and operation of clean rooms. It is also the construction content that owners of clean rooms should pay attention to.
In order to ensure the control requirements of the clean production environment in clean room, a distributed computer monitoring system or automatic control system should generally be set up to control the various operating parameters and energy of the purification air conditioning system, public power system and various high-purity material supply systems. Consumption, etc. are displayed, adjusted and controlled to meet the strict requirements of the clean room product production process for the production environment, and at the same time achieve the production of specified products with guaranteed quality and quantity with as little energy consumption (energy saving) as possible.
The main electrical equipment includes: power transformation and distribution equipment, backup power generation equipment, uninterruptible power supply (UPS), converter and frequency equipment and transmission and distribution lines for strong current systems; telephone equipment, broadcast equipment, security alarm equipment, etc. for communication security systems. Disaster prevention equipment, central monitoring equipment, integrated wiring system and lighting system. Electrical designers of clean rooms, by applying modern electrical technology, modern engineering control technology and computer intelligent monitoring technology, can not only provide continuous and reliable power for clean rooms, but also create opportunities for the production, command, dispatching and monitoring of automated clean rooms. Good fasteners are required to ensure the normal operation of production equipment and auxiliary production equipment in clean room, prevent various disasters from occurring and create a good production and working environment.
Post time: Oct-30-2023