1 reply to this topic

[docdan]

I have a rupture disk on the discharge of a positive displacement pump. The rupture disk is equipped with a link so that we can stop the pump when it bursts. However in the immediate 1-2 seconds after the disk bursts:

- the pump shutdown takes 500-1000 milliseconds discharging several gallons of liquid
- the depressurization of several thousand feet of downstream pipe generates several additional gallons discharge of "incompressible" liquid

The problem is that this system runs at 200bar. When the disk bursts, the liquid jet is quite dangerous to operators. (There are no toxic or volatile materials in the liquid.)

Can anyone suggest a design for a blowdown drum to contain such a discharge?

My current thinking is
- cyclone shape, open at the bottom so the liquid can drain
- large air vent line at the top
- infeed (rupture discharge line) tangential entry into the tank

All suggestions are appreciated.

[fallah]

docdan,

With lack of adequate information i think your third solution, provided that the suction tank has enough room to receive discharged liquid, may be applicable to your problem.

Fallah