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Coke cutting pump HI-HI flow tripping issue

Home Forums Coking Maintenance Pumps, Valves, Rotary Joints, Cranes Pumps Coke cutting pump HI-HI flow tripping issue

This topic contains 1 reply, has 2 voices, and was last updated by  Mike Kimbrell 3 years, 7 months ago.

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  • #30437


    We are having M/S Flow serve supplied coke cutting pumps installed in DCU plant.We are facing frequent problem of HI-HI flow pump tripping issue .If , anyone is having same kind of problem please suggest to solve the issue.

  • #30441

    Mike Kimbrell

    Normally, when a high flow rate causes the pump motor to trip off-line it is due to the motor not having enough horsepower to allow the pump to reach the end of its curve. You could check the pump curve to determine where the pump hydraulic horsepower required matches the horsepower of the motor supplied.

    I have heard about this when the unit requires two heater feed pumps to be on line at a time. The proposed solution was to put a pressure control on the heater feed pump discharge that closed off the pass flow control valves to keep the pressure on the heater feed pump high enough to prevent the pump from tripping the motor. I do not have any experience with this arrangement as we installed a large enough motor so that this would not be a problem.

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