OPERATING METHOD OF ABSORPTION TYPE FREEZER AND ABSORPTION LIQUID FOR ABSORPTION TYPE FREEZER

摘要

PURPOSE: To restrict occurrence of hydrogen gas caused by a local corrosion or an entire surface corrosion and to enable an operation of a freezer to be carried out in the case that an equipment made of stainless steel acting as composing equipment in an absorption type freezer with lithium bromide solution being applied as absorption liquid. CONSTITUTION: In an operation of an absorption type freezer having lithium bromide (LiBr) aqueous solution applied as absorption liquid and having an equipment made of stainless steel, the operation is carried out while applying absorption liquid for the absorption type freezer with a concentration of lithium hydroxide (LiOH) being 0.01. to 0.3N, with sodium sulfite (Na2 SO3 ) or sodium hydrogen sulfite (NaHSO3 ) of 250ppm or more in a conversion rate of sodium sulfite and further antimony chloride (SbCl3 ) or antimony oxide (Sb2 O3 ) of 200 to 2000ppm or more in a conversion rate of antimony chloride.