Title:
FOAM NOZZLE FOR FOAM FIRE EXTINGUISHING FACILITY
Document Type and Number:
Japanese Patent JP2016154733
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To obtain a foam nozzle for a foam fire extinguishing facility in which a foaming performance is improved and sufficient foaming can be obtained even by a protein fire-extinguishing agent.SOLUTION: A foam nozzle for a foam fire extinguishing facility is provided with: an orifice part 2 for injecting a foam fire-extinguishing agent mixed liquid made by mixing a foam fire-extinguishing agent and water, introduced in a nozzle body 1; and an air intake 3, in a base part of the nozzle body 1. The foam nozzle for a foam fire extinguishing facility sucks air from the air intake 3 using negative pressure by the injection of the foam fire-extinguishing agent mixed liquid injected in the nozzle body 1 from the orifice part 2, and emits the fire-extinguishing foam internally foamed and generated by stirring and mixing the foam fire-extinguishing agent mixed liquid with air from the tip of the foam nozzle body 1. On the primary side of the orifice part 2, a swirl flow forming part 4 is provided for swirling the foam fire-extinguishing agent mixed liquid introduced in the nozzle body 1. A swirl flow generation space 5 where the swirled foam fire-extinguishing agent mixed liquid becomes a swirl flow by passing through the swirl flow forming part 4 is formed between the swirl flow forming part 4 and the orifice part 2.SELECTED DRAWING: Figure 1
Inventors:
OKI KENJI
MATSUMOTO DAISUKE
HORIKOSHI MEGUMI
KIYOMIBARA TOMOYUKI
SHINAHARA TAKASHI
KATAGAI EMI
MATSUMOTO DAISUKE
HORIKOSHI MEGUMI
KIYOMIBARA TOMOYUKI
SHINAHARA TAKASHI
KATAGAI EMI
Application Number:
JP2015035344A
Publication Date:
September 01, 2016
Filing Date:
February 25, 2015
Export Citation:
Assignee:
NIPPON DRY CHEMICAL KK
International Classes:
A62C31/12
Attorney, Agent or Firm:
Akihiro Otsuka
Koichi Kawashima
Koichi Kawashima