Water mist spray method for use in firefighting, involves performing swirling of spray nozzles in opposite directions of water spray in two nozzle chamber

摘要

Two concentric ring like nozzle chambers are arranged in a frame of a nozzle head. Several conduits are formed in the nozzle chamber to supply water into the chamber at partly tangentially to effect a swirling motion of water in the chambers such that the swirling directions of water sprays (S1,S2) directed in two chambers are opposite to each other respectively. - An INDEPENDENT CLAIM is also included for spraying nozzle.