The problem of cavitation in silicon trichlorohydride transfer pumps
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We have a buffer tank between the light-end tower and the heavy-end tower for trichlorosilane treatment; below it is the feed pump for the next tower. However, this pump is prone to cavitation, and we can’t identify the cause. Seeking advice from experts! Is it related to the temperature of the material in this tank, the saturated vapor pressure of trichlorosilane at that temperature, and the height of the tank above the pump inlet? Can this problem be solved by adjusting the pressure in the buffer tank? I need expert advice!
By using a shielded pump and ensuring thorough air evacuation before starting it, cavitation will be **reduced**. Just use the light tower to apply pressure to feed it into the weight-reducing tower, right? Isn’t using a pump more troublesome?
Increasing the pressure in the buffer tank can prevent cavitation; a blockage in the pump’s return line can also cause cavitation.