With the aggravation of
the environmental protection situation, more and more chemical enterprises are
required to use magnetic pumps to transport various corrosive materials. As we
all know, magnetic pumps cannot idle. As long as they idle for a few minutes,
the friction between the shaft and the shaft sleeve inside them will produce
extremely high temperature, quickly wear the graphite bearings and shafts, and
even burn the inner rotor.
In recent years, domestic magnetic pump
manufacturers claim to be able to do anti idling magnetic pumps. Is it true?
Does idling magnetic pump really work? Can it really idle for a long
time?
Today, I would like to introduce some details to you. I hope it will be
helpful to users.
At present, there are two kinds of idling magnetic pumps
produced by some domestic manufacturers. One is that ceramic rolling bearings
are used to replace the original sliding bearings. When the magnetic pump is
short of liquid, the friction coefficient of the rolling bearings is low and the
heat generated is relatively small. Therefore, the magnetic pump can be idling
without burning the bearings and rotors. The disadvantages of this structure
are: it cannot carry high torque, materials with higher density cannot be
transported normally, and ceramic bearing balls are fragile.
The other is the
LHC idling fluorine lined magnetic pump developed by Green Ring. This magnetic
pump is a complete upgrade of the main shaft and shaft sleeve on the original
traditional basis. It is filled with nano carbon powder technology to achieve
the function of idling and self-lubricating. Relatively speaking, the latter is
more in line with idling requirements in terms of technology and practical
theory.
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