公开(公告)号：EP1106510A1

公开(公告)日：2001-06-13

申请号：EP99914752.3

申请日：1999-04-14

申请人： TOYO SEIKAN KAISYA, LTD.

发明人： TAKENOUCHI, Ken ,  KOIKE, Hidetoshi ,  SENBON, Katsumi ,  IWASAKI, Tsutomu ,  KUROSAWA, Kazuyuki ,  TANIOKA, Mitsuo ,  KIMURA, Yoshihiko

IPC分类号： B65B31/00

CPC分类号： B65B31/006

摘要： A method and apparatus for manufacturing pressurized packages capable of obtaining gas displacement pressurized canned goods with high accuracy of internal pressure by atomizing liquid nitrogen, and supplying it together with low temperature vaporized gases to a head space of a can. A spray device assembly (10) for atomizing and spraying the liquid nitrogen is provided in an opening of the bottom of a liquefied gas storage tank (1) formed as a vacuum heat insulating structure. The spray device assembly (10) is constituted such that a valve (2) for controlling the flow rate of liquid nitrogen, a spray nozzle (3), a liquid nitrogen flowpassage (4) extending from the valve (2) to the spray nozzle (3), a nozzle cooling tank (5) for cooling the flowpassage, and a purge device for cutting an outer peripheral portion of a nozzle and an outlet portion off from the air, so as to prevent them from being frosted, are integrally mounted on a spray body 6. The nozzle cooling tank (5) always cools the pipe 13 and the nozzle 3 by liquid nitrogen, and enables supplying of the liquid nitrogen to the nozzle having a temperature gradient to the neighborhood of a boiling point, without boiling and vaporizing it from the tank to the nozzle. The liquid nitrogen supplied while preventing of being vaporized to an orifice inlet of the spray nozzle allows to pass through a nozzle orifice in the liquid state to release into the atmosphere, thereby giving rise to a rapid vaporizing expansion immediately after moving out of the nozzle orifice, so that other liquid nitrogen still in the liquid phase state is atomized.

摘要翻译： 一种用于制造加压包装的方法和装置，其能够通过雾化液氮来获得具有高精度内部压力的气体置换加压罐头，并将其与低温汽化气体一起供应到罐的顶部空间。 在形成为真空隔热结构的液化气储罐（1）的底部的开口部设置用于雾化和喷射液氮的喷射装置组件（10）。 喷雾装置组件（10）构成为用于控制液氮流量的阀（2），喷嘴（3），从阀（2）延伸到喷嘴的液氮流路（4） （3），用于冷却流通的喷嘴冷却箱（5），以及用于切割喷嘴的外周部分和从空气排出的出口部分以防止其磨损的吹扫装置，一体地安装 在喷雾体6上。喷嘴冷却箱（5）总是通过液氮冷却管13和喷嘴3，并且能够将液氮供给具有沸点附近的温度梯度的喷嘴，而不沸腾 并将其从罐蒸发到喷嘴。 在防止被喷射到喷嘴的孔入口的同时供给的液氮允许通过液体状态的喷嘴口以释放到大气中，从而在从喷嘴孔流出之后立即产生快速的蒸发膨胀 ，使得仍处于液相状态的其它液态氮被雾化。