Fluid handling – Processes – Carbonated beverage handling processes
Patent
1981-09-18
1983-02-08
Weakley, Harold W.
Fluid handling
Processes
Carbonated beverage handling processes
137 68R, 137557, 13762516, 137119, 137876, 137613, F17D 100
Patent
active
043723349
ABSTRACT:
A control system for an overpressure relief arrangement includes a valve providing selective communication between a pressure passage connected to a pressure vessel and a pair of relief passages, each relief passage having an overpressure relief device therein; sensors for monitoring the pressure in the pressure passage, the status of the relief devices, and the position of the valve; an actuator to move the valve; and a computer to make decisions concerning the placement of the valve based upon the data derived from the sensors. The valve normally provides communication between the pressure passage and first relief passage preferably having a rupture disc therein. Upon rupture of the disc, the system pressure is monitored until it is safe to switch to the second relief passage without overpressuring the relief device therein. If the pressure should increase to the overpressure level within a selected period, the valve is switched back to the first relief passage to exhaust the pressure to a safe level; and the valve is switched back to the second relief passage when sufficient pressurized fluid has been exhausted.
REFERENCES:
patent: 3952759 (1976-04-01), Ottenstein
patent: 4215746 (1980-08-01), Hallden
patent: 4263929 (1981-04-01), Keanney
Continental Disc Corporation
Weakley Harold W.
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