Heat insulator and heat-insulating vessel

Patent metadata

Field	Value
Publication number	US-2017198863-A1
Application number	US-201515314685-A
Country	US
Kind code	A1
Filing date	Jun 2, 2015
Priority date	Jun 4, 2014
Publication date	Jul 13, 2017
Grant date	—

Abstract

A heat insulator ( 10 ) is provided in a heat-insulating vessel for holding a substance having a temperature that is lower than ordinary temperature by at least 100° C. The heat insulator ( 10 ) includes a core material ( 14 ) and an outer wrapping material ( 13 ) for wrapping the core material ( 14 ). The core material ( 14 ) has a heat-insulating core material made of an open-cell resin. The outer wrapping material ( 13 ) is made of a metal thin plate. A peripheral edge of the metal thin plate is fixedly bonded. An inside of the outer wrapping material is vacuum-sealed.

First claim

1 . A heat insulator provided in a heat-insulating vessel for holding a substance having a temperature that is lower than ordinary temperature by at least 100° C., the heat insulator comprising:
a core material; and
an outer wrapping material for wrapping the core material,
wherein the core material has a heat-insulating core material made of an open-cell resin,
the outer wrapping material is made of a metal thin plate,
a peripheral edge of the metal thin plate is fixedly bonded, and
an inside of the outer wrapping material is vacuum-sealed.

2 . The heat insulator according to claim 1 , wherein the open-cell resin is a thermosetting resin.

3 . The heat insulator according to claim 1 , wherein the open-cell resin is an open-cell urethane foam, an open-cell phenolic foam, or a copolymer resin containing the open-cell urethane foam or the open-cell phenolic foam.

4 . The heat insulator according to claim 1 , wherein the outer wrapping material is made of stainless steel or a metal having an ionization tendency equivalent to or lower than an ionization tendency of the stainless steel.

5 . The heat insulator according to claim 1 , wherein the outer wrapping material has an explosion-proof structure.

6 . The heat insulator according to claim 5 , wherein the explosion-proof structure is an expansion reducing part for letting a gas in the inside of the outer wrapping material escape to an outside.

7 . The heat insulator according to claim 5 ,
wherein the explosion-proof structure includes a gas adsorption material that is sealed within the outer wrapping material, and the gas adsorption material is a gas adsorption material of a chemical adsorption type that chemically adsorbs a gas or a non-heat-generating gas adsorption material that does not generate heat by adsorption of a gas.

8 . A heat-insulating vessel for holding a substance having a temperature that is lower than ordinary temperature by at least 100° C., comprising the heat insulator according to claim 1 .

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Hirai Tsuyoki

Classifications

• F17C2223/033

  Small pressure, e.g. for liquefied gas · CPC title

• F17C2221/033

  Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG · CPC title

• F17C2221/012

  Hydrogen · CPC title

• F17C2201/052

  large (>1000 m3) · CPC title

• F17C2260/042

  Reducing risk of explosion · CPC title