企業名(ming)稱(cheng):山東鼎梁消防科技有(you)限公司(si)
服務熱(re)線:400-687-0063
濕(shi)式報警閥是一(yi)種只(zhi)允(yun)許水單向(xiang)流入噴水系統并在規(gui)定流量下報警的一種單向(xiang)閥。濕式報警閥平時(shi)閥瓣前后(hou)(hou)水(shui)(shui)壓相等(水(shui)(shui)通過導向(xiang)管(guan)中的水(shui)(shui)壓平衡(heng)小孔,保持閥瓣前后(hou)(hou)水(shui)(shui)壓平衡(heng))。
工作(zuo)原理:
由(you)于(yu)閥瓣的(de)自重(zhong)和閥瓣前(qian)后所受(shou)水(shui)(shui)(shui)(shui)的(de)總壓(ya)力(li)不(bu)同(tong),閥瓣處于(yu)關閉(bi)狀態(tai)(閥瓣上(shang)面(mian)的(de)總壓(ya)力(li)大于(yu)閥芯下面(mian)的(de)總壓(ya)力(li))。發生火災時(shi)(shi),閉(bi)式噴頭噴水(shui)(shui)(shui)(shui),由(you)于(yu)水(shui)(shui)(shui)(shui)壓(ya)平衡小孔來不(bu)及補水(shui)(shui)(shui)(shui),報(bao)(bao)警(jing)(jing)閥上(shang)面(mian)水(shui)(shui)(shui)(shui)壓(ya)下降,此時(shi)(shi)閥瓣前(qian)水(shui)(shui)(shui)(shui)壓(ya)大于(yu)閥瓣后水(shui)(shui)(shui)(shui)壓(ya),于(yu)是閥瓣開啟(qi),向(xiang)立管(guan)及管(guan)網供水(shui)(shui)(shui)(shui),同(tong)時(shi)(shi)水(shui)(shui)(shui)(shui)沿著報(bao)(bao)警(jing)(jing)閥的(de)環形槽進入延時(shi)(shi)器、壓(ya)力(li)開關及水(shui)(shui)(shui)(shui)力(li)警(jing)(jing)鈴等設(she)施,發出火警(jing)(jing)信號(hao)并(bing)啟(qi)動消防泵。
注意(yi)事項: