Title:
FIRE FOAM MIXER
Document Type and Number:
Japanese Patent JP2023014504
Kind Code:
A
Abstract:
To provide a fire foam mixer capable of mixing water and fire foam at an appropriate ratio regardless of pressure of a water source.SOLUTION: A fire foam mixer according to the present invention, the fire foam mixer is used for a pump proportioner-type foam fire extinguishing system. The fire foam mixer includes a chemical suction chamber 14c communicated with the outside, provided between a primary-side throat 14a and a secondary-side throat 14b of a Venturi tube, where it is defined that 1<(minimum diameter D2 of the secondary-side throat 14b)/(minimum diameter D1 of the primary-side throat 14a)<3.SELECTED DRAWING: Figure 3
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Inventors:
NOMURA HARUKI
Application Number:
JP2021118482A
Publication Date:
January 31, 2023
Filing Date:
July 19, 2021
Export Citation:
Assignee:
FUKADA KOGYO KK
International Classes:
A62C5/02
Attorney, Agent or Firm:
Aoyama Yo
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