The ultra-clean workbench is designed to meet the needs of the cleanliness of local work areas in modern industrial, optoelectronics, biopharmaceutical and scientific research trials. The working principle is as follows: the air is sucked by the fan, filtered through the high-efficiency filter through the static pressure box, and the filtered clean air is sent out in a state of vertical or horizontal airflow, so that the operating area continues to be cleaned under the control of clean air. To ensure the production of environmental cleanliness requirements. Classification of ultra-clean workbench: The ultra-clean workbench is divided into a vertical flow super-cleaning station and a horizontal flow super- clean work according to the direction of the airflow . The vertical flow table is louder due to the fan at the top, but the wind is blown vertically in the medical engineering to ensure the health of the person; The noise of the flow table is relatively small, so it is used in the electronics industry and has little effect on health. According to the operation structure, it can be divided into two types: single-side operation and bilateral operation. According to its application, it can be divided into ordinary super-clean workbench and biological (medicine) ultra-clean workbench. From the number of operators, it is divided into single-person ultra-clean platform and double-cleaning platform; it is divided into two types: the lower suction and the upper suction; from the air supply, it is divided into horizontal air supply and vertical air supply. Ultra-clean workbench use This is a general-purpose partial purification equipment. The airflow form is vertical laminar flow, which can create a local high clean air environment. It is an ideal special equipment for scientific research, pharmaceutical, medical and sanitary, electronic optical instruments and other industries. Ultra-clean workbench working principle The basic principle is basically the same. The indoor air is filtered through the coarse filter, and the centrifugal fan is pressed into the static pressure box, and then filtered by the high-efficiency air filter. The clean air flow sent from the uniform uniform cross-section wind speed passes. The bacteria area, thus forming a dust-free and sterile high-clean working environment. However, the airflow direction of the two purification stations is different, and the airflow after the air purification of the side-flow table flows from the left or the right side to the opposite side through the work surface, and there are also Upward or downward flow from the upper to the lower to the opposite side, an airflow barrier can be formed to keep the working area sterile. However, at the junction of the purified airflow and the outer gas, a negative pressure can occur due to the flow of the airflow, so that a small amount of unpurified air is mixed in, which occurs. The possibility of pollution. The structure of the flow-type clean bench is relatively closed. Generally, only the round holes into which the two arms extend are left. It is not convenient to operate and take larger items. The outflow type (horizontal type) is to make the purified air flow toward the operator, so the external airflow is not mixed into the operation area, but if the hazardous substance experiment operation is performed, it is disadvantageous to the operator. When the horizontal purification workbench is mostly open, There is no protective baffle. Although it is convenient to operate and take the items, it may be affected by the external airflow and cause air to be mixed. The purification workbench is a relatively sophisticated instrument that, if used and maintained properly, can achieve good results and extend service life. The ultra-clean workbench mainly uses high-efficiency filters to purify the air. Its high-efficiency filter is used for a certain service life and needs to be replaced regularly. If the workbench is in a relatively clean environment, such as a GMP workshop, the frequency of replacement is low; if it is just an ordinary laboratory, the high-efficiency filter should be replaced 2 years to ensure its effect. The length of service life of the clean bench is related to the cleanliness of the air. In the temperate zone, the clean bench can be used in general laboratories. However, in tropical or subtropical regions, the area with a large amount of pollen or dust in the atmosphere should be placed in a good indoor room with double doors. . Under no circumstances should the inlet hood of the clean bench be facing the open door or window to avoid affecting the service life of the filter. 4 Wire Intercom Video Doorbell,4 Wire Intercom Video Doorbell Villa,4 Wire Connection 4 Wire Intercom System Zhuhai Mingke Electronics Technology Co., Ltd , https://www.mingke-tech.com
Classification and use of dust-free workbench