Centrifuge drum Before operating the centrifuge, the po […]
Before operating the centrifuge, the power supply should be cut off and the brake of the centrifuge should be released first.
Check for looseness and abnormality in other parts.
Turn on the power and start driving in a clockwise direction (usually it takes about 40-60 seconds from standstill to normal operation).
Generally, each equipment must be run empty for about 3 hours after arriving at the factory, and it can work without abnormal conditions.
Materials should be placed as evenly as possible.
Must be operated by dedicated personnel, and the capacity must not exceed the rated amount.
It is strictly forbidden to run the machine at overspeed, so as not to affect the service life of the machine.
After the machine is started, if there is an abnormal situation, it must be stopped and checked, and if necessary, it must be disassembled and repaired.
The centrifuge operates at a high speed, so you should never touch the drum with your body to prevent accidents.
The mesh of the filter cloth should be determined according to the size of the solid particles of the separated material, otherwise it will affect the separation effect. In addition, the filter cloth should be installed
The sealing ring is embedded in the sealing groove of the drum to prevent the material from running in.
In order to ensure the normal operation of the centrifuge, please refuel and maintain the rotating parts every 6 months. At the same time, check the running lubrication at the bearing for wear and tear; if the parts in the brake device are worn, replace them severely; if there is any oil leakage in the bearing cover.
After the machine is used, it should be cleaned to keep the machine tidy.
The "surge" phenomenon often occurs in centrifuges of refrigeration centrifugal units.
The principle of the refrigeration centrifugal compressor is to compress the large molecular weight refrigerant into a small space by high-speed movement, and then condense by lowering the temperature.
The energy adjustment method of the centrifugal chiller is to adjust the compression ratio by adjusting the angle of the guide plate rotating at high speed
When the cooling capacity drops, the work done by the guide vane decreases, and the pressure of the compressed gas is similar to the pressure of the gas sucked into the compressor, resulting in mechanical forced vibration of the gas backflow. (Also called "surge") Surge can cause damage to mechanical components.
Development of centrifuges Centrifuges are instruments that separate samples and are widely used in fields such as biomedicine, petrochemicals, agriculture, food hygiene, etc. It utilizes the difference in precipitation speed of different substances in the centrifugal force field to achieve analytical separation of samples. Since the advent of centrifuges, it has undergone changes in low speed, adjustment, and overspeed. Its progress is mainly reflected in two aspects of centrifugal equipment and centrifugal technology, which complement each other. From the perspective of speed, desktop centrifuges basically belong to the category of low-speed and high-speed centrifuges, so they have the technical characteristics of low-speed and high-speed centrifuges. Their structure is mainly composed of motor drive system, refrigeration system, mechanical system, rotor and system control. The composition is only a little smaller in size and capacity than the floor-standing centrifuge. The development of universal desktop centrifuges has blurred the boundaries of low-speed, high-speed, micro- and large-capacity centrifuges. Many rotors provide a wide range of applications for scientific researchers and become the preferred model for scientific research laboratories, such as the ST2l of Sorvall in the United States. , Germany Heraeus new model Biofuge Stratos and so on.
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