The high-pressure
peripheral pump comprises a
peripheral pump body and a liquid inlet
pipe, the liquid inlet
pipe is integrally formed on the outer side of a pump shell of the
peripheral pump body, the high-pressure peripheral pump further comprises a liquid adjusting mechanism, and the liquid adjusting mechanism comprises a hexagonal fixed block, a rotating
pipe, a spindle variable-
diameter cylinder, an outer connecting pipe, a
flange plate, a liquid
cutting plate, a reducing cup pipe and a hexagonal protruding block. The liquid adjusting mechanism is arranged at the position of the liquid inlet pipe of the peripheral pump body, and a spindle variable-
diameter cylinder, a liquid
cutting plate, a side
cutting rib plate, a reducing cup pipe and other components in the liquid adjusting mechanism are matched with one another, so that liquid entering the liquid inlet pipe can be effectively adjusted; after liquid enters the spindle variable-
diameter cylinder, the flow speed is reduced, the liquid cutting plate and the side cutting rib plate can perform separation and flow division, and the reducing cup pipe guides the liquid to contract and enter the liquid inlet pipe, so that the pressure of the liquid in the liquid inlet pipe is increased, the possibility of
cavitation is reduced, the stability of the pump is improved, and the service life of the pump is prolonged.