Research on Sealing Performance of Claw Type Hydrogen Circulation Pump
Claw type pump is the most commonly used structural form of hydrogen circulation pump.As a power component of the hydrogen cycle,in order to meet the hydrogen purity requirements of the fuel cell stack,it is necessary to achieve no oil pollution during the hydrogen recycling process and ensure that the pump's work-ing efficiency meets the usage needs.Therefore,the oil proof seal and the clearance seal between the pump cas-ing and rotor have become two sealing difficulties that must be solved for claw pumps.This article analyzes and studies the problem of oil proof sealing and the gap sealing of pump chambers,and proposes solutions.
Claw type hydrogen circulation pumpOil proof sealingGap sealing
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