Constant temperature magnetic stirrer with digital display has been widely used
Digital display constant temperature magnetic agitator adopts dc motor, with low noise and stable speed regulation, it is an ideal constant temperature stirring tool for laboratories of petroleum, chemical industry, medicine and health, environmental protection, biochemistry, education and scientific research, etc. It can stir liquid solution at a wide range of speed and temperature.
Digital display temperature magnetic stirrer has been widely used, but only limited to the research and development, the level of the small, people often produces illusion to magnetic stirrer, think of the magnetic stirrer is weaker, small power, cannot be used for big volume, as well as the dead Angle, online cleaning (CIP) and online sterilization (SIP), etc., however, this view had overthrown in real applications. At present, the magnetic agitator can be zui large and suitable for 40t water agitator, or even larger, and there are many kinds of applications. In terms of structure, the magnetic agitator generally consists of a rotating head with a negative bearing. Yang bearing, tank bottom welding plate, motor composition. Motor drive head has a few permanent magnets (not ring), turned in the corresponding position have the same number of permanent magnets, polarity attraction, when installed, motor drive the head and turn the permanent magnets in the magnetic coupling between each other, motor drive head, magnetic drive turned to run, the two are completely separated from the tank bottom, there is no mechanical transmission shaft through the tank. The design of the head, the connection between the head and the bearing, and the gap between the head and the bearing are directly related to the effect of CIP/SIP. Generally, the more open the head is, the better. Turn material is 316 l stainless steel, inner BaoYong magnets, zui commonly used bearing material is silicon carbide ceramic, completely inert, suitable for pH1 ~ 14, small thermal expansion, under the condition of the water lubrication, can tolerate up to 5000 ~ 6000 RPM speed don't wear, because the working status of magnetic stirrer, is completely immersed in the solution, the existence of the lubrication slot can make the solution through, so that the friction interface is covered by water membrane, in rotates, the friction is very small, there will be no detectable particles, the final product will not pose a threat. Installation sites are often located at the bottom of the tank bottom inclined, according to the manufacturer's installation guide for assembly, location and manhole/hand Kong Zheng at the bottom of the tank, to avoid the tank bottom valve installation position, so design, vortex and turbulence can be formed, so as to achieve a better mixing effect, experts have made on this experiment, a specific parameter for reference, of course, this also and higher ratio of tanks, solution properties, viscosity, stirring speed and blender matches and other factors.