Master these points, help to extend the use of double clean workbench

Double ultra clean bench mainly provided by the gas filter plate clean air drop by operating at the speed of a particular area, separate among about operating area, by the front-end siphon off after the air inlet hole and breathe in a window, the front at the bottom of the operating area of inhaled air mixed together, and by the air blower pump into the positive pressure area, after in the upper part of the machine. 30% of the gas is discharged from the top through the exhaust filter, and about 70% of the gas is re-entered into the operation area through the oxygen supply filter. The same volume of air is replenished from the room through the operator to replenish the air from the vent. This air does not enter the operating area, only forms an air barrier.



The double clean work table is formed by the flow of clean air (filter air) in the set direction in a specific space. According to the direction of air flow, the existing ultra-clean working platform can be divided into vertical type, from the inside out type and side type. From the operation quality and the impact on the environment to consider, to the vertical superior.



In the later use of equipment, we always hope that its life can be longer, especially some large equipment, then, how to make the service life of the equipment longer? Shanghai sujing industry related technical personnel said to master these points, help to extend the use of the double clean work table:



1, in the use of ultra-clean workbench, need to pay attention to a lot of problems, the ultra-clean workbench must be used in the purification room, or not up to the purification requirements, if there is no condition, but also in the environment clean room; Second, before using the ultra-clean work table, the table should be cleaned with alcohol, and then the fan and ultraviolet lamp tube of the ultra-clean work table should be turned on, and the operation should be carried out after 30 minutes.



2. Many people believe that there will be no problems if the table is not cleaned before each use. However, this view is wrong. In addition, the operator in each use of ultra-clean table, as long as the retention of necessary items, surplus items will affect the flow of air purification effect.



3. After the filter is replaced, use the dust meter to check whether the sealing of the four surrounding areas is good, adjust the voltage of the air unit, keep the average wind speed in the working area within 0.4m/s±20%, and use the dust meter to check the purification efficiency. Fifth, the electrical parts are installed on the right side of the box. If there is an electrical fault, it can be repaired by referring to the electrical schematic diagram and wiring diagram.



4, super clean the workbench is in order to adapt to the modern industry, optoelectronic industry, biological pharmaceutical and scientific research experiments in areas such as the demand for local work area cleanliness, if don't pay attention to practice, do not pay attention to carry out repairs and maintenance on a regular basis, not only can greatly shorten the service life of ultraclean workbench, also can bring influence on related experiments and production. Therefore, the operator needs to be clear about the relevant matters needing attention and put them into practice.



5, according to the cleanliness of the environment, regularly remove the filter material in the coarse filter clean, the time interval is generally 3~6 months. If the filter fails to meet the specified requirements, an alarm will beep, prompting the user to immediately replace the filter to protect the user's safety.



6. When the voltage of the wind unit is adjusted to large zui, and the average wind speed in the working area still cannot reach the technical parameters, the air filter shall be replaced.



7. When replacing the filter, first open the pre-filter on the top of the air supply body, and then remove the fan plate. When replacing, pay attention to the arrow mark of the filter, which points to the laminar flow direction.



8. Of course, the operator should also check the wind speed of the outlet regularly. If the wind speed is lower than the factory specified value, the filter needs to be replaced. Also, clean the ultra-clean workbench thoroughly at least once a week.