The centrifugal machine of the refrigeration centrifugal unit often has a "surge" phenomenon

Shanghai Xinzhuang Instrument Co., Ltd. adheres to the leading business philosophy of technological innovation and technology, and continues to make new contributions to the development of human social undertakings by carrying out strategic innovations and innovative product innovations. It is a company that integrates R&D, production and sales. Shanghai Xinzhuang Instrument Co., Ltd. develops the LNB brand centrifuge, which is energy-saving and environmentally friendly and domestically leading. Professional manufacturing is more secure and affordable.
Routine maintenance of the centrifuge Before turning the centrifuge, the power should be cut off and the centrifuge brake should be loosened first. You can turn the drum to try to see if there is any bite. Check for other parts of the area for looseness and abnormality. Turn on the power and start the drive in a clockwise direction (usually about 40-60 seconds from standstill to normal operation). Usually, each equipment must be empty for about 3 hours after it arrives at the factory. It can work without abnormal conditions. Place the material as evenly as possible. Must be operated by a person, the capacity must not exceed the rated amount. Never overspeed the machine to avoid affecting the life of the machine. After the machine is started, if there is an abnormal situation, it must be stopped for inspection and repaired if necessary. The centrifuge is running at high speed, so it is not possible to touch the drum with the body to prevent accidents. The mesh size of the filter cloth should be determined according to the size of the solid phase particles of the separated material, otherwise the separation effect will be affected. In addition, when installing the filter cloth, insert the filter cloth sealing ring into the drum sealing groove to prevent the material from running in. In order to ensure the normal operation of the centrifuge, please rotate the parts every 6 months. At the same time, check the running lubrication condition of the bearing, whether there is wear phenomenon; whether the components in the brake device are worn or not, and replace it severely; the bearing cover has no oil leakage. After the machine is used, it should be cleaned and kept clean. Do not separate the non-preservative centrifuge from the highly corrosive materials; in addition, strictly follow the equipment requirements and regulations, non-explosion-proof centrifuges should not be used in flammable or explosive places.
"Surge"
Centrifuges in refrigeration centrifugal units often experience "surge". The principle of a refrigerating centrifugal compressor is to compress a large molecular weight refrigerant by a high-speed movement to a small space for compression, and then condense by cooling. The energy adjustment mode of the centrifugal chiller is to adjust the compression ratio by adjusting the angle of the high-speed rotating guide vane. When the cooling capacity is decreased, the work done by the guide vane is reduced, and the pressure of the compressed gas is similar to that of the suction compressor. Gas backflow produces mechanical forcing vibrations. (Also called "surge") Surge can cause damage to mechanical parts. Centrifuge Development Centrifuge is a device for separating samples. It is widely used in biomedicine, petrochemical, agricultural, food hygiene and other fields. It uses the difference in precipitation speed of different substances in the centrifugal force field to realize the analysis and separation of samples. Since the advent of the centrifuge, the progress of low speed, adjustment and overspeed has been mainly reflected in the centrifugal equipment and centrifugal technology, and the two complement each other. From the perspective of rotational speed, the desktop centrifuge is basically in the category of low-speed, high-speed centrifuges. Therefore, it has the technical characteristics of low-speed and high-speed centrifuges. Its structure is mainly composed of motor drive system, refrigeration system, mechanical system, rotor and system control. The composition is only a small size and capacity compared to the floor-standing centrifuge. The development of universal benchtop centrifuges has blurred the boundaries of low-speed, high-speed, micro- and high-capacity centrifuges. Numerous rotors provide a wide range of applications for researchers and become the preferred model for research laboratories.
Shanghai Xinzhuang Instrument Co., Ltd. is a company specializing in R&D, production and sales of low temperature experimental equipment and ultrasonic equipment. The company has professional temperature control technicians and advanced production equipment; perfect production process; to ensure product quality; to achieve safe production. Strive for beautiful, practical, stable and cost-effective products, and strive to save more experimental space for our customers. We will continue to provide you with safe, stable and high-performance experimental equipment to make your experiment process easier.


Shanghai Xinzhuang has an industry-recognized team of experts and first-class technology talents. With a deep understanding and mastery of scientific instrument technology, we will create high-tech laboratory instruments!
Shanghai Xinzhuang specializes in the production of experimental equipment such as solid phase extraction equipment, leading technology, quality assurance, welcome your consultation to buy http://


The 100% Corn Starch Rubbish Bags make it easy to sort and recycle kitchen waste!

Our corn starch rubbish bags  can be burned together with kitchen waste, and no harmful carcinogens such as dioxins are produced.We recommend that you compost compostable trash bags together with kitchen waste, bury them in the soil or compost in a microbiological environment for 3 months. Our biodegradable compostable garbage bags will be 100% completely degraded into Carbon dioxide and water become organic fertilizers.

Corn Starch Rubbish Bags

Ningbo ECO Biodegradable Technology Co., Ltd , https://www.chinabiodegradable.com