HIGH-EXPANSION FOAM GENERATOR HAVING A NOZZLE HOUSING WITH A REDUCED DIAMETER TO LENGTH RATIO

    公开(公告)号:WO2021211597A1

    公开(公告)日:2021-10-21

    申请号:PCT/US2021/027101

    申请日:2021-04-13

    IPC分类号: A62C31/12 A62C5/02

    摘要: An apparatus and method directed to aspirated-type high-expansion foam generation having a nozzle housing with a reduced diameter to length ratio. The generator having a nozzle manifold configured to receive a foam solution and at least one nozzle assembly. The generator can include a foam generator assembly disposed adjacent the nozzle manifold. The foam generator has a body portion having a first foam generating portion having a tapered configuration and a second foam generating portion having a tapered configuration with a base that is connected to an apex of the first foam generating portion. The foam generating assembly is configured such that the second foam generating portion protrudes into an interior of the first foam generating portion. The generator is configured such that a ratio of a largest inlet dimension of the foam generator assembly to a length of the foam generator assembly is 0.50 or less, and a nozzle housing is disposed on a header of the nozzle manifold such that a ratio of a diameter of an inlet of the respective nozzle to a distance from an inner wall surface of the header to the inlet of the respective nozzle is 0.8 or less.

    消火方法
    4.
    发明申请
    消火方法 审中-公开

    公开(公告)号:WO2018123311A1

    公开(公告)日:2018-07-05

    申请号:PCT/JP2017/041080

    申请日:2017-11-15

    IPC分类号: A62D1/00 A62C31/12

    摘要: 本発明は、火炎の熱エネルギーが小さく吸熱が不十分であってもより確実に消火作用を発現する消火方法を提供する。具体的には、本発明は、水溶性成分である少なくとも1種の消炎化合物及び少なくとも1種の硝酸塩を含む消火用水溶液を、高圧状態で、噴霧ノズルから噴霧放射することを特徴とする消火方法である。

    一种空气泡沫灭火系统
    5.
    发明申请

    公开(公告)号:WO2017016143A1

    公开(公告)日:2017-02-02

    申请号:PCT/CN2015/097516

    申请日:2015-12-15

    发明人: 胡翔 王靖 余正兵

    IPC分类号: A62C5/02 A62C31/12

    CPC分类号: A62C5/02 A62C31/12

    摘要: 一种空气泡沫灭火系统。由喷射、供水、供气和泡沫供应系统组成,喷射与供水、供气和泡沫供应系统连通,其中供水、供气是自带动力供应系统、泡沫供应系统由供水系统提供动力通过文丘里负压供应装置供应泡沫混合液;喷射系统为圆柱形中空结构,独立设置于背负式或小车可移动结构体上,包括灭火喷管,水、泡沫、空气混合装置,各介质入口。该空气泡沫灭火系统以风力为灭火系统的喷射动力,可作为空气灭火装置用于森林灭火,还可用于其他多种灭火环境;喷射系统实现了灭火剂与水的充分混合,在动力风的驱动下进一步发泡并喷射,喷射距离大大延伸,在火场交通相对困难条件下,可充分发挥系统轻、移动方便、近距离实现大动力灭火的目的。

    AN IMPROVED APPARATUS FOR GENERATING MISTS AND FOAMS

    公开(公告)号:WO2012073049A3

    公开(公告)日:2012-06-07

    申请号:PCT/GB2011/052402

    申请日:2011-12-05

    IPC分类号: A62C31/12 A62C5/00 A62C99/00

    摘要: An apparatus for generating a mist and/or foam is provided. The apparatus comprises at least one first fluid supply passage (60a, 60b) having an inlet in fluid communication with a first fluid supply and a first fluid outlet; at least one second fluid supply passage (66) having an inlet in fluid communication with a second fluid supply and a second fluid outlet; and a nozzle (72) in fluid communication with the first and second fluid outlets, the nozzle (72) having a nozzle inlet (74), a nozzle outlet (78), and a nozzle throat (76) intermediate the nozzle inlet (74) and nozzle outlet (78), the nozzle throat (76) having a cross sectional area which is less than that of both the nozzle inlet (74) and nozzle outlet (78); and wherein the second fluid outlet includes a porous member (100) through which the second fluid must flow.

    FIXED SYSTEMS AND METHODS FOR EXTINGUISHING INDUSTRIAL TANK FIRES, WITH AND WITHOUT FIXED ROOF, INCLUDING AERATED FOAM PROJECTING NOZZLES AND CENTER DIRECTED NOZZLES
    7.
    发明申请
    FIXED SYSTEMS AND METHODS FOR EXTINGUISHING INDUSTRIAL TANK FIRES, WITH AND WITHOUT FIXED ROOF, INCLUDING AERATED FOAM PROJECTING NOZZLES AND CENTER DIRECTED NOZZLES 审中-公开
    固定式系统和方法,用于拆除工业罐燃料,具有和不具有固定的屋顶,包括燃料喷射喷嘴和中心指示喷嘴

    公开(公告)号:WO2012054073A1

    公开(公告)日:2012-04-26

    申请号:PCT/US2011/001768

    申请日:2011-10-17

    IPC分类号: A62C31/12

    摘要: Fixed systems and method tor extinguishing large scale industrial tank fires, with and without fixed roofs, and featuring aerated foam projecting nozzles and including fixed center directed nozzles The invention includes two connected nozzles, which project aerated foam of between in substantially focused streams and in roughly opposing directions. The two nozzles have a stream shaper in a tip portion of the nozzle with fins which terminate substantially flush with a nozzle tip solid bore discharge orifice. The two nozzles preferably are attached proximally downstream of and in fluid communication with at least one ambient air aeration chamber structure in combination with the two nozzles to produce aerated foam. A third nozzle of the fixed system is structured to discharge in a direction of within 30° of a perpendicular to the discharge axis defined by the two nozzles discharging in the roughly opposing directions.

    摘要翻译: 固定系统和方法灭火大型工业罐式火灾,有和没有固定屋顶,并且具有充气泡沫突出喷嘴和包括固定中心定向喷嘴本发明包括两个连接的喷嘴,其在基本上聚焦的流中和大体上聚焦的流中投影充气泡沫 相反的方向 两个喷嘴在喷嘴的尖端部分中具有流形成器,其中翅片与喷嘴头固体孔排出孔基本上齐平。 两个喷嘴优选地与至少一个环境空气曝气室结构的下游附近附接并且与两个喷嘴组合流体连通以产生充气泡沫。 固定系统的第三喷嘴被构造成沿着与两个喷嘴在大致相反的方向上排出的排出轴垂直的30°的方向排出。

    APPARATUS FOR GENERATION OF FIRE EXTINGUISHING FLOW
    8.
    发明申请
    APPARATUS FOR GENERATION OF FIRE EXTINGUISHING FLOW 审中-公开
    消防灭火器产生装置

    公开(公告)号:WO2006049529A1

    公开(公告)日:2006-05-11

    申请号:PCT/RU2005/000458

    申请日:2005-09-09

    IPC分类号: A62C31/12 A62C5/02

    CPC分类号: A62C31/12

    摘要: An apparatus for the generation of a foam-like fire extinguishing flow comprises a lance (1) with a flowing channel (2) of axially symmetric shape, a nozzle (7) located at an end part of the lance (1), a foaming solution introduction means (13), and a mixed liquid and foam stream stabilizer (16). An expansion chamber (18) is provided between the foaming solution introduction means (13) and the mixed stream stabilizer (16). The flowing channel of the nozzle (7) comprises an inlet conical or conoid shaped portion (10) converging in the course of flow of the liquid and an outlet cylindrical portion (11). The apparatus allows a distance of discharging the fire extinguishing flow to be increased owing to a reduction in energy losses for the generation of a high-velocity foam-like flow.

    摘要翻译: 用于产生泡沫状灭火流的装置包括具有轴向对称形状的流动通道(2)的喷枪(1),位于喷枪(1)的端部处的喷嘴(7),发泡 溶液引入装置(13)和混合液体和泡沫流稳定剂(16)。 在发泡溶液引入装置(13)和混合流稳定器(16)之间设置有膨胀室(18)。 喷嘴(7)的流动通道包括在液体流动过程中会聚的入口锥形或锥形部分(10)和出口圆柱形部分(11)。 该设备允许由于减少用于产生高速泡沫状流的能量损失而使灭火流的排出距离增加。

    ROTARY FOAM NOZZLE
    9.
    发明申请
    ROTARY FOAM NOZZLE 审中-公开
    旋转泡沫喷嘴

    公开(公告)号:WO03041805A3

    公开(公告)日:2003-09-18

    申请号:PCT/CA0201744

    申请日:2002-11-15

    发明人: CRAMPTON GEORGE

    摘要: A rotary nozzle for compressed air foam (CAF) has a barrel (14) mount ed for rotation about an axis perpendicular to its longitudinal axis. The barrel is mounted to a CAF supply conduit (10) and has a cross-sectional area substantially larger than the cross-sectional area of the conduit. Two non-equal orifices in the barrel (24, 26), located on the opposite sides of the axis of rotation, distribute CAF such that it covers an almost complete, typically a circular area on the ground.

    摘要翻译: 用于压缩空气泡沫(CAF)的旋转喷嘴具有安装成围绕垂直于其纵向轴线的轴线旋转的筒体(14)。 筒被安装到CAF供应导管(10)上,并且其横截面面积基本上大于导管的横截面面积。 位于旋转轴线的相对侧上的筒体(24,26)中的两个不相等的孔分配CAF,使得其覆盖地面上几乎完整的,通常为圆形的区域。

    IMPROVED FIRE FIGHTING NOZZLE AND METHOD INCLUDING PRESSURE REGULATION, CHEMICAL AND EDUCTION FEATURES
    10.
    发明申请
    IMPROVED FIRE FIGHTING NOZZLE AND METHOD INCLUDING PRESSURE REGULATION, CHEMICAL AND EDUCTION FEATURES 审中-公开
    改进的消防喷嘴和方法,包括压力调节,化学和教育特点

    公开(公告)号:WO02026393A1

    公开(公告)日:2002-04-04

    申请号:PCT/US2000/026568

    申请日:2000-09-27

    摘要: A selectively automatic fire fithting nozzle a method of use including adjustable means (ST) of limiting a range of automatic adjustement (B) of a discharge orifice of the nozzle, providing an option of selecting a constant pressure for a first fraction of a discharge window and selecting a relatively constant flow for a second fraction.

    摘要翻译: 一种选择性自动防火喷嘴,其使用方法包括限制喷嘴的排放孔的自动调节范围(B)的可调节装置(ST),为喷射窗口的第一部分提供选择恒定压力的选项 并为第二部分选择相对恒定的流。