Principle and operation of super clean worktable

It is widely used in medical and health, pharmaceutical, chemical experiments and other fields, and provides a sterile and dust-free clean environment purification bench features 1, vertical flow 2, adjustable air volume fan system, light touch switch and stepless regulation of voltage Ensure that the wind speed in the working area is always in an ideal state Technical parameter model sw-cj-1fd: cleanliness Grade 100 @ ≥ 0.5 μ m (209E in the United States), colony number < 0.5 / dish, noise ≤ 62db (a), average wind speed 0.25-0.45m/s, vibration half peak value < = 0.5um (x, y, Z direction) illumination ≥ 300lx, power supply AC, single-phase 220V / 50Hz Zui, high power consumption 400W, weight 120kg, working dimension 870 * 600 * 520mm, overall dimension 1050 * 680 * 1600mm, filter specification and quantity 865 * 555 * 38 * 1, fluorescent lamp / UV lamp specification and quantity 16W * 1 / 15W * 1, working principle of ultra clean workbench (1) Ultra clean worktable is equipped with UV sterilization lamp for killing microorganisms (2) the variable speed centrifuge in the ultra clean working table can blow out the air filtered by the filter with horizontal or vertical one-way air flow, and can blow through the working area with a certain uniform cross-section wind speed, taking away dust particles and microbial particles, forming a dust-free and sterile working environment 2 Operation method of ultra clean working table (1) connect the power supply After inserting the power into the socket and turning on the main switch of the whole super clean workbench, you can see that the power indicator lights on the button panel indicate that the power is on (usually, the main power switch of the super clean bench in the laboratory is always on.) (2) clean the table, pull down the dust-proof glass baffle, and sterilize by ultraviolet If there are any articles not related to this experiment stacked in the ultra clean bench, they can be removed first, and after cleaning the bench with alcohol cotton ball, they can be put into the materials related to the experiment in advance and can be sterilized by ultraviolet irradiation Pull down the glass baffle in front of the workbench and close it tightly Find the key board, press the button marked with "sterilization" to turn on the UV lamp (press the button again to turn off the UV lamp) for sterilization, generally irradiating for 30min [note] the operation table can be roughly divided into waste recovery area, article placement area and operation area Try not to stack articles in the operation area; do not turn on the fan while sterilizing (3) start the fan and lighting system and start the experiment Before the UV sterilization, the fan should be turned on first, then the UV lamp should be turned off After Zui, the glass baffle should be lifted to start the experiment The buttons marked "start / stop" on the button panel are the buttons for opening and closing the fan Under normal circumstances, the Zui low gear of the fan has met the wind speed requirements at the time of delivery When using, press the "air volume regulation" button several times to select the required air speed After pressing the air volume regulating button, the change of air speed is "low → high → low" continuous circulation, and there is corresponding light to indicate the air volume status The button marked "lighting" is the switch for the lighting in the ultra clean workbench, which can be turned on as required [note] ① avoid rapid and large-scale movement as much as possible during the test operation, so as to reduce the disturbance of air flow in the ultra clean workbench and avoid the entry of external bacteria ② Some super clean platforms have both positive pressure and negative pressure systems In general, the positive pressure system is used; when the test reagent may have gas escaping, causing irritating injury to personnel, the negative pressure air duct system can be used, so that all gases can only circulate in the super clean platform (4) end the test, clean the table, close the fan, and pull down the dust-proof glass baffle After the test, clean the waste of the table top, and wipe the table top with alcohol cotton ball Close the fan and pull down the dust-proof glass baffle If there is any test below, turn on the UV lamp to prepare for the next use 3 Maintenance of ultra clean bench (1) change the filter cloth regularly according to the cleanliness of environment; clean the inside and outside of ultra clean bench regularly (2) when the lamp and UV lamp reach the service life, replace the lamp tube of the same specification.