US 11,913,720 B2
Product gas supply quantity adjustment device and air separation apparatus comprising same
Takuya Kaneda, Kobe (JP); and Shigenobu Kuwada, Kobe (JP)
Assigned to L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude, Paris (FR)
Filed by L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, Paris (FR)
Filed on Mar. 22, 2021, as Appl. No. 17/208,273.
Claims priority of application No. 2020-067079 (JP), filed on Apr. 2, 2020.
Prior Publication US 2021/0310732 A1, Oct. 7, 2021
Int. Cl. F25J 3/04 (2006.01)
CPC F25J 3/04836 (2013.01) [F25J 3/04406 (2013.01); F25J 3/04793 (2013.01); F25J 3/04018 (2013.01); F25J 3/04169 (2013.01); F25J 3/04218 (2013.01); F25J 2200/04 (2013.01); F25J 2210/40 (2013.01); F25J 2215/50 (2013.01); F25J 2280/02 (2013.01); F25J 2290/10 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A supply quantity adjustment method comprising the steps of:
a) calculating a total demand quantity used by at least one supply destination, based on plant information acquired from the at least one supply destination;
b) comparing the total demand quantity and a pre-set flow rate set value and setting a first calculated pressure value;
c) adjusting a backup coefficient set value based on a pre-set supply-destination reference gasholder pressure, the first calculated pressure value, a pre-set reference backup pressure set value, and a measured gasholder pressure value, which is a measured pressure value of the supply-destination gasholder; and
d) adjusting a production coefficient by comparing a production pressure set value obtained by adding the pre-set supply destination reference gasholder pressure and a first pressure output value with the measured gasholder pressure value; and
e) modifying a variation in product gas production quantity by an at least one air separation apparatus based on the production coefficient adjusted in step d).