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As the key equipment of cleanroom, air shower is mainly used to remove the pollutants on the surface of people and articles entering the clean area to ensure the stability and safety of the cleanroom environment. This article will discuss in detail the role of the air shower, the internal structure, working principle and use, to help readers fully understand its function and operation.
I, the role of the air shower
The main function of the air shower is to remove the dust, microorganisms and other pollutants on the surface of the personnel and goods entering the clean room through high-speed airflow. As the first line of defense of the clean room, the air shower significantly reduces the entry of external pollutants, improves the air quality of the clean room and ensures the safety of products and experiments. In many high-standard production and experimental environments, the air shower is an important tool for maintaining a dust-free and sterile environment.
II, the internal structure of the air shower
The design of an air shower consists of a number of key components that work in concert to achieve optimum decontamination.
1. Infrared Sensor
Infrared sensors are used to automatically detect the entry of personnel. When a person enters the air shower, the sensor immediately senses his/her body temperature and automatically activates the system to ensure timely air purification at every use.
2. Air shower integrated control panel
The integrated control panel is the core of the operation of the air shower. Users can set parameters such as blowing time and Wind speed through its easy-to-use interface, and monitor the operating status of the air shower in real time. Efficient control system can enhance the convenience and safety of the air shower.
3. Primary effect filter
The primary filter is used to intercept large particles of dust and protect the subsequent high-efficiency filter from premature clogging. It is designed to extend the service life of the entire system and reduce maintenance costs.
4. Specialized centrifugal fans
Dedicated centrifugal fans are responsible for generating a powerful airflow that propels air to move quickly. The performance of the fan directly affects the overall efficiency of the air shower, and high efficiency, low noise equipment needs to be selected to meet the requirements of the clean room.
5. High-efficiency filter
High-efficiency filters (hepa or ULPA) are key filtration components in an air shower, capable of filtering out micron-sized particles to ensure that only purified air enters the clean room. Its performance is critical to maintaining a clean environment.
6. 360° Rotating Air Outlet
The 360° rotating air nozzle design allows the airflow to evenly cover the surface of the object being treated, enhancing the removal of contaminants. The air outlet's ejection speed can be adjusted up to 30m/s to ensure effective decontamination in a short period of time.
III, the working principle of the air shower
The working principle of the air shower can be divided into the following steps:
1. infrared induction: when the personnel into the air shower, infrared sensor in time to sense its presence, to ensure that the front and back doors closed to prevent the entry of outside air.
2. controller start: the sensor signal is transmitted to the integrated control panel, the controller then starts the special centrifugal fan, start blowing shower process.
3. Air intake: air containing contaminants enters the air shower through the return air inlet. 4.
4. Filtration: The air first passes through the primary filter to remove large particles, then through the special centrifugal fan to accelerate the flow, and finally through the high-efficiency filter for in-depth purification.
5. Airflow spraying: the purified air is sprayed out through 360°rotating nozzle at a speed of up to 30m/s, and the surface of the personnel or articles entering the air shower is strongly blown, which effectively removes dust and microorganisms.
6. Air circulation: the pollutants blown off are sucked into the return air channel again and filtered through circulation to ensure the durability of the purification effect.
IV. Maintenance and repair of air shower
In order to ensure the long-term efficient operation of the air shower, regular maintenance and maintenance is essential. The following are some maintenance recommendations:
1. Regular inspection of filters: primary filters and high efficiency filters need to be regularly inspected and replaced. It is generally recommended to conduct a comprehensive inspection every three to six months, depending on the frequency of use and environmental conditions.
2. Clean the inside of the air shower: regularly clean the inside of the air shower, especially the air outlet, the floor and the wall, in order to avoid the accumulation of dust affecting the purification effect.
3. Monitor fan operation status: Check the operation status of centrifugal fans regularly to ensure that they are functioning properly and to avoid purification failure due to malfunction.
4. Calibrate infrared sensors: Ensure that infrared sensors are properly sensitized to avoid failure to detect the entry of people due to reduced sensitivity.
5. Record the use of the situation: keep a record of use, including the time of each use, frequency and maintenance of detailed records, so as to facilitate future analysis and improvement.
As important equipment for maintaining the cleanroom environment, the effective working principle and use of an air shower are directly related to the air quality and safety of the cleanroom. Through reasonable design, effective maintenance and scientific use, the function of the air shower can be maximized to ensure that people and goods entering the clean area maintain a high standard of cleanliness. We hope that this article can help you better understand the working principle of air shower and its use, and improve the management efficiency of cleanroom.
