Title:
【発明の名称】液化ガス貯蔵槽への粉末断熱材の自動充填方法
Document Type and Number:
Japanese Patent JP2762233
Kind Code:
B2
Abstract:
PURPOSE:To enable automatic uniform filling of particulate heat insulating material in the filling space inside a liquefied gas storage tank without applying vibration. CONSTITUTION:A vacuum pump 8 is connected to a space 4 between an internal tank 1 and external tank 2 of a liquefied gas storage tank 3 of double wall construction. The space 4 between the tanks is connected to a particulate heat insulating material tank 5 through a heat insulating material passage 9, and is connected also to a pressurizing gas storage tank 6 through a pressurizing gas feed passage 10. The particulate heat insulating material feed passage 9 is provided with a particulate heat insulating material filling valve 12, and the pressurizing gas feed passage 10 is provided with a gas pressurizing valve 13. With the vacuum pump 8 kept operating, the particulate heat insulating material filling valve 12 is opened for a specified time to feed particulate heat insulating material to the space 4 between the tanks. Then, the gas pressurizing valve 13 is opened for a specified time to feed dry gas stored in the pressurized gas storage tank 6 to the space 4. Such particulate heat insulating gas pressurizing process is repeated preset number of times.
Inventors:
KUBOTA AKITOSHI
YOKOYAMA RYOJI
YOKOYAMA RYOJI
Application Number:
JP15075894A
Publication Date:
June 04, 1998
Filing Date:
July 01, 1994
Export Citation:
Assignee:
IWATANI SANGYO KK
IWATANI PURANTETSUKU KK
IWATANI PURANTETSUKU KK
International Classes:
B65B1/16; B65D90/06; F16L59/00; F16L59/06; (IPC1-7): B65B1/16; B65D90/06; F16L59/00; F16L59/06
Domestic Patent References:
| JP84981A |
Attorney, Agent or Firm:
Juichi Chatan