| 摘要 |
<p>PURPOSE:To keep the temperature of a raw beer always at the most suitable temperature at any time by a method wherein after making everything excepting a mouth piece be a vacuum thermal insulation layer with a metal double structure, a circulating type cooling tank is attached under an inner cylinder body. CONSTITUTION:An inner cylinder 1 is manufactured in such a manner that the diameters of an inner cylinder body lower part 6 and an inner cylinder under end plate 10 are contracted, and they are joined by welding. Then, a cooling tank outer cylinder 7 is manufactured to be adjusted to the contracted diameter part of the inner cylinder body lower part 6, and the top and bottom are welded into a bag shape and attached. A cooling water inlet nozzle 8 and an outlet nozzle 9 are joined to the cooling tank outer cylinder 7 by welding, and the nozzles are projected to be lower than an outer cylinder under end plate 11, and the outer peripheries of the inlet nozzle 8 and the outlet nozzle 9 are welded to the outer cylinder 3 and sealed.</p> |
