一木棋牌app

柜式七氟丙烷灭火装置

联系我们

公司名称:重庆筑天消防设备有限公司

公司地址:重庆市九龙坡区火炬大道中航九悦荟4幢2101

公司电话:023-6868 7989

公司手机:132 2039 9699        

公司传真:023-6858 6662

公司邮编:400041

公司网址:http://djlynk.com

公司邮箱:zttec@foxmail.com




细水雾灭火系统起源以及灭火机理应用

您的当前位置: 首 页 >> 资讯中心 >> 行业新闻

细水雾灭火系统起源以及灭火机理应用

发布日期:2019-11-01 00:00 来源:http://djlynk.com 点击:

  DAJIAHAO,JINTIANZHUTIANXIAOFANGXIAOBIANWEIDAJIAFENXIANGGUANYUXISHUIWUMIEHUOXITONGQIYUANYIJIMIEHUOJILIYINGYONG,XIANZAIXIAOFANGGUANLIYUELAIYUEGUIFANHUA,XIWANGDUIDAJIAYOUSUOBANGZHU!

  细水雾的起源及发展

  SUOWEIDE“XISHUIWU”,ZAIYINGWENLIZHUYAOYOUwater mist、water fog、fine water spray JIGECI,water mistZAIWENXIANZHONGSHIYONGDUO。XISHUIWUZAIXIAOFANGFANGMIANDEYINGYONGSHIYUSISHINIANDAI,DANGSHIZHUYAOYONGYUTESHUDECHANGSUO,RUYUNSHUGONGJUDENG。XIANZAIYOUYUHUANBAOWENTI,LUDAIWANMIEHUOJIBEIZHUBUTAOTAI,ERXISHUIWUZUOWEIMIEHUOJIDUIYUHUANJINGDEQIANZAIYOUSHISHIQIYINGYONGFANWEIZAIBUDUANDETUOZHAN,XISHUIWUMIEHUOXITONGYONGYUJUZHUJIANZHU、KERANXINGYETICHUCUNSHESHIJIDIANQISHEBEIFANGMIANDEYANJIU,YIJINGQUDELELINGRENGUWUDECHENGGUO。

一木棋牌app  1993NIAN,LAIZIGONGCHENGJIEHEKEYANBUMEN、XISHUIWUXITONGDEZHIZAOSHANG、BAOXIANGONGSI、XINGZHENGGUANLIBUMENHEGONGYEYONGHUDEDAIBIAO,ZUCHENGLEMEIGUOXIAOFANGLIANHEHUIXISHUIWUMIEHUOXITONGJISHUWEIYUANHUI(NFPA Technical Committee on Water Mist Fire Suppression Systems),GAIWEIYUANHUIKAISHIBIANZHIYONGYUGUIFANXISHUIWUJISHUDENFPABIAOZHUN,ZUOWEISHEJIHEANZHUANGDEYIJU。

  1996NIAN,ZAIMEIGUODEMASAZHUSAIZHOUBOSHIDUNSHIMEINIAN5YUE20-23RIDENIANHUISHANG,XISHUIWUMIEHUOXITONGJISHUWEIYUANHUITIJIAOLEXISHUIWUGUIFAN( NFPA 750, Standard on Water mist Fire Protection Systems),BINGHUODELEMEIGUOXIAOFANGLIANHEHUIDEPIZHUN。GAIGUIFANYOUGUOJIABIAOZHUNXIEHUIYUTONGNIANDE7YUE18RIBANBU,SHENGXIAORIQIWEI8YUE9RI,TONGNIANDE7YUE26RI,96BANNFPA 750BEIPIZHUNWEIMEIGUOGUOJIAGUIFAN。

8005002.png

  细水雾的定义

  “细水雾”(water mist)是相对于“水喷雾”(water spray)的概念,所谓的细水雾,是使用特殊喷嘴、通过高压喷水产生的水微粒。在NFPA 750中,细水雾的定义是:在小设计工作压力下、距喷嘴1米处的平面上,测得水雾粗部分的水微粒直径Dv0.99不大于1000μ(Dvf的含义:Dvf是水微粒直径,它的微粒子直径从0至某一微粒直径的累计体积与相应的总累计体积之比,如Dv0.99)

  ANSHUIWUZHONGSHUIWEILIDEDAXIAO,XISHUIWUFENWEI3JI。1JIXISHUIWUWEIDv0.1=100μTONGDv0.9=200μLIANXIANDEZUOCEBUFEN,ZHEIXIEDAIBIAOXIDESHUIWU。

  2JIXISHUIWU,SHI1JIXISHUIWUDEJIEXIANYUDv0.1=200μTONGDv0.9=400μLIANXIANZHIJIANDEBUFEN。ZHEIZHONGXISHUIWUKEYOUGAOYAPENZUI、SHUANGLIUPENZUIHUOXUDUOCHONGZHUANGSHIPENZUICHANSHENG。YOUYUYOUJIAODADESHUIWEILICUNZAI,XIANGDUIYU1JIXISHUIWU,2JIXISHUIWUGENGRONGYICHANSHENGJIAODADELIULIANG。

  3JIXISHUIWUWEIDv0.9DAYU400μ,HUOZHE2JIXISHUIWUFENJIEXIANYOUCEZHIDv0.99=1000μZHIJIANDEBUFEN。ZHEIZHONGXISHUIWUZHUYAOYOUZHONGYA、XIAOKONGPENLINTOU、GEZHONGCHONGJISHIPENZUIDENGCHANSHENG。

一木棋牌app  YANJIUBIAOMING,PUMIE BLEIHUOZAISHUIWUKELIXIAOYU400μSHIBIXUDE,ERJIAODADEKELIDUIYU ALEIHUOZAISHIYOUXIAODE,ZHEISHIYOUYURANLIAOBEIJINSHI。ZHENGYINWEIRUCI,XISHUIWUDEDINGYIBAOKUOLEDv0.99WEI1000μ。ZAINFPA 750ZHONGDINGYIDEXISHUIWU,JIBAOHANLENFPA 15ZHONGDINGYIDEYIBUFENSHUIPENWUXITONG(Water Spray),YOUBAOHANLEZAIGAOYAZHUANGTAIXIAPUTONGPENLINXITONG(Sprinklers)CHANSHENGDESHUIWU。YIBANQINGKUANGXIA,XISHUIWUSHIZHIDv0.9XIAOYU400μDESHUIWU。

  细水雾的灭火机理及应用

  细水雾灭火系统成功的关键,是增加单位体积水微粒的表面积。水微粒子化以后,即使同样体积的水,也可使总表面积增大。而表面积的增大,更容易进行热吸收,冷却燃烧反应。吸收热的水微粒容易汽化,体积增大约1700倍。由于水蒸汽的产生,既稀释了火焰附近氧气的浓度,窒息了燃烧反应,又有效地控制了热辐射。可以认为,细水雾灭火主要是通过高效率的冷却与缺氧窒息的双重作用。

  XISHUIWUSHUIWEILIZHIJINGDAXIAODEFENBUYUMIEHUONENGLIDEGUANXISHIGEFUZADEWENTI。YIBANLAIJIANG,1JIHE2JIXISHUIWUYONGYUPUMIEYETIRANLIAOCHINEIDEHUOZAIXIAOGUOJIAOHAO,ERQIEBUHUIJIAODONGCHINEIDEYEMIAN。TONGCHANGQINGKUANGXIA,YONG1JISHUIWUPUMIEALEIKERANWUSHIBIJIAOKUNNANDE,ZHEIKENENGSHIGAIXISHUIWUBUNENGCHUANTOUTANHUACENGERJINSHIRANSHAOWUZHI。RANER,YINWEIXISHUIWUDEPENSHESUDUHENGAO,ZAIRANSHAOCHUYUBIAOMIANHUOFENGBIKONGJIANNEI,YOULIYUYANGQIJIANSHAODEQINGKUANGXIA,HAISHIKEYIPUMIEALEIKERANWUDE。ZHEISHUOMING,DUIYUYIDINGDERANSHAOWU,XISHUIWUDEKELIZHIJINGBUSHIJUEDINGMIEHUONENGLIDEWEIYIYINSU。XITONGDEMIEHUOXIAOGUOHAIYUXISHUIWUXIANGDUIYUHUOYANDEPENSHEFANGXIANG、SUDUHEPENSHUIQIANGDUDENGYOUMIQIEDEGUANXI。

  MEIGUOHAIJUNSHIYANSHI(Naval Research Laboratory)CENGDUIXIALIE3ZHONGXISHUIWUMIEHUOXITONGDEMIEHUOXIAOGUOZUOLEYIXILIESHIYAN:DANLIUDIYAXITONG(Single-Fluid Low-Pressure Systems)、 DANLIUGAOYAXITONG(Single-Fluid High-Pressure Systems)HESHUANGLIUXITONG(Twin-Fluid Systems)。

  SHIYANBIAOMING,DANLIUDIYAXITONGCHANSHENGJIAODADESHUIWEILI,ZAIPUMIESHENCENGDEALEIHUOZAISHI,BIAOXIANCHULIANGHAODEXIAOGUO。ZHEISHIYOUYUQIXIANGDUIJIAODADELIULIANG(DANLIUGAOYAXITONGDE3ZHI4BEI),CHANSHENGLEBIAOMIANDEJINSHIZUOYONG,DANJIANRUOLEXITONGPUMIESHOUZHEDANGDEHUOZAIDENENGLI。ERDANLIUGAOYAXITONGDEMIEHUOXIAOGUOZEWANQUANXIANGFAN,YOUYUJIAOXIAODESHUIWEILIZHIJING,TIGAOLEPUMIESHOUZHEDANGHUOZAIDENENGLI,ERJIANRUOLEPUMIESHENCENGDEALEIHUOZAISHIDEXIAOGUO。SHIYANXIANSHI,DAKONGJIANNEISHOUZUDANGDEHUOZAI,DANGHUOZAICHUDEYANGQINONGDUJIANGDAO18%YIXIASHI,HUOYANJIKEXIMIE。

  细水雾灭火系统与卤代烷或其它气体灭火系统一木棋牌app相比,灭火时间要长得多,前者约为100-200秒,后者约为10-20秒。另外,封闭空间开口大小对细水雾灭火效果的影响较小,在敞开空间内,细水雾系统比气体灭火系统具有非常明显的优势。

一木棋牌app  HUOZAIGUIMODEDAXIAO,DUIXISHUIWUMIEHUOXITONGDEMIEHUOXIAOGUOYEYOUYINGXIANG,RANSHAOMENGLIEDEHUOZAIJIAORANSHAOHUANMANDEHUOZAIRONGYIBEIPUMIE。ZHEISHIYOUYUQIANZHEYANGQIXIAOHAODEKUAI,BINGBANSUIYOUDALIANGZHENGQIHEWENLIUDECHANSHENG。XISHUIWUXITONGPENSHUIDETONGSHI,HUOCHANGDEWENDUJIJUXIAJIANG,ZHEIYOUZHUYURENGONGMIEHUOBINGJIANSHAORELIANGZAOCHENGDECAICHANSUNSHI。

  GUANYUXISHUIWUDEDIANQIJUEYUANXING,GUOWAIMOUGONGSICENGYONGSecuripex Fire-Scope 2000 XISHUIWUMIEHUOXITONGZUOGUOSHIYAN,JIANGGAIXITONGPENRUSHEYOUDIANDONGJI、FADIANJIHEPEIDIANPANDEFENGBIFANGJIANNEI,SHANGSHUSHEBEINEIBUDEDIANYAWEI220~440V。JIEGUOXIANSHI,ZAISHIFANGGUOCHENGZHONG,DIANZUDUSHUMINGXIANXIAJIANG,DANHETONGCHANGYIYANG,SHEBEIYUNZHUANZHENGCHANG。ZAIYIBANQINGKUANGXIA,SUIZHESHEBEIBIANDEGANZAO,DIANZUZHIHUIHUIFUDAOZHENGCHANGZHI。XISHUIWUXITONGNENGFOUYONGYUDIANQISHEBEI,GUANJIANZAIYUSHUIWUWEILIDEDAXIAO。MOUYIZHONGLEIDEXISHUIWUXITONGYONGYUDIANQISHEBEISHI,YINGTONGGUOYOUGUANBUMENDERENZHENG。

一木棋牌app  XISHUIWUXITONGKEYONGYUBAOHUGONGCHANGGUIZHONGDESHENGCHANSHEBEI、GAOCENGJIANZHUNEIDEYOUJINDIANLIBIANYAQISHI、ZIBEICHAIYOUFADIANJIFANGJIQICHUYOUJIANHERANYOU、RANQIGUOLUFANG。GAOYAJISHUANGLIUJIEZHIXISHUIWUXITONG,KEYONGYUZHONGYAODEGAOCENGJIANZHUNEIDEGAO、DIYAPEIDIANSHI,ZHONGYAODEDIANZITONGXINSHEBEIJIFANG,DIANCHANGDEKONGZHISHI,RANQIWOLUNJIDENGCHANGSUO。

  总结:以上就是筑天消防小编为大家分享的“细水雾灭火系统起源以及灭火机理应用”全部内容,相信大家对细水雾灭火系统有更深的了解了吧


相关标签:气体灭火系统

最近浏览:

在线客服
二维码

扫描二维码

分享