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AssigneesNichibou Co., Ltd., Mitsui Chemicals Industrial Products Ltd.
InventorsKenji Taniguchi, Masaya Iwasaki, Yuichi Kouga
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The present invention provides an automatic fire extinguishing device that can detect a fire at the temperature lower than 120 degrees Celsius and that can be installed for a long term in a state of maintenance-free. The fire extinguishing device consists of a pressure resistant container filled with the extinguishant and the pressurization agent, the container valve attached to the opening of the pressure resistant container, the fire detection tube connected to the container valve. And the fire detection tube is formed with the lamination of the tubular base resin layer and the gas barrier layer, the base resin layer is made of the thermoplastic resin and the gas barrier layer is made of ethylene vinyl alcohol copolymer resin (EVOH resin).
The automatic fire extinguishing device is characterized in that it contains a pressure resistant container which includes the extinguishant and the pressurization agent inside, the container valve attached to the opening of the pressure resistant container, the fire detection tube connected to the container valve, the fire detection tube equipped with the tubular base layer and gas barrier layer laminated coaxially with the base resin layer, the base resin layer which is comprising thermoplastic resin, the gas barrier layer consisting of ethylene-vinyl alcohol copolymer resin (EVOH resin).
The fire detection tube of the automatic fire extinguishing device characterized in that it contains the tubular shaped base resin layer and the gas barrier layer laminated coaxially with the base resin layer, the base resin layer consisting of thermoplastic resin, the gas barrier layer consisting of EVOH resin.
Dependencies are inferred from the claim text.