消防氣體頂壓給水設備有哪些特點

2022/01/24

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      大(da)家都知道，在(zai)滅火(huo)救援時(shi)，需要大(da)量的(de)強壓(ya)(ya)(ya)的(de)水(shui)，一般(ban)的(de)消(xiao)(xiao)防設(she)備(bei)(bei)很(hen)難保(bao)證持(chi)續的(de)強大(da)壓(ya)(ya)(ya)力(li)，而(er)穩(wen)壓(ya)(ya)(ya)消(xiao)(xiao)防泵(beng)可以做到(dao)。上海喜之泉(quan)消(xiao)(xiao)防氣(qi)體頂(ding)壓(ya)(ya)(ya)給水(shui)設(she)備(bei)(bei)主要由氣(qi)壓(ya)(ya)(ya)水(shui)罐、消(xiao)(xiao)防泵(beng)控制設(she)備(bei)(bei)、頂(ding)壓(ya)(ya)(ya)儲氣(qi)系統、減(jian)壓(ya)(ya)(ya)釋放(fang)裝置等組成。消(xiao)(xiao)防氣(qi)體頂(ding)壓(ya)(ya)(ya)給水(shui)設(she)備(bei)(bei)是如(ru)何(he)實(shi)現(xian)穩(wen)壓(ya)(ya)(ya)的(de)神奇(qi)功能(neng)的(de)呢？今天給大(da)家講講其(qi)中(zhong)的(de)頂(ding)壓(ya)(ya)(ya)儲氣(qi)系統

一、穩壓泵(beng)系統實(shi)現(xian)穩壓的結構

1、氣瓶系統
氣瓶組配有氣瓶，通過管路與氣壓水罐頂部相連，管路通斷由電磁閥控制，氣瓶內壓力在12MPa~15MPa，出口壓力設定為系統的下限壓力以下。平時氣瓶系統是一直處于休眠狀態，火災發生時，當穩壓系統壓力急劇下降，當下降到下限壓力以下時，氣瓶組電磁閥打開，氣瓶組的高壓氣體迅速打到氣壓水罐內，把氣壓水罐里的水迅速打到消防管道內以保證10分鐘的應急消防水源供給。
 

2、汽泵系統
汽泵系統可設大小汽泵各一臺。其中大汽泵平時也是處于休眠狀態，只有小汽系出現故障時，它才啟動。因為在穩壓過程中用氣量很小，小汽泵平時只用于穩壓。汽泵系統出口管路與氣壓水罐的頂部相連接，每個汽泵出口各裝有一個單向闊，保證穩壓氣體及水不至于回流氣泵內。當穩壓系統壓力下降到設定下限時，小汽泵啟動，向穩壓系統及管路打壓，直到壓力達到設定值上限時汽泵停止，當小汽泵故障或壓力急劇下降時，大汽泵啟來完成穩壓過程。如此反復運行確保穩壓系統穩定在設定的壓力范圍內，達到大小氣泵備用及穩壓之目的。

二、穩(wen)壓泵系統的啟動與(yu)運行原理

設(she)備(bei)啟動前首先(xian)利用水(shui)(shui)源的壓(ya)(ya)(ya)力(li)(li)向(xiang)氣(qi)壓(ya)(ya)(ya)水(shui)(shui)罐(guan)及(ji)系(xi)(xi)統里(li)灌水(shui)(shui)。啟動穩(wen)(wen)壓(ya)(ya)(ya)泵(beng)后，繼續向(xiang)系(xi)(xi)統打水(shui)(shui)，直至把氣(qi)壓(ya)(ya)(ya)水(shui)(shui)罐(guan)內(nei)的水(shui)(shui)位提高到(dao)設(she)定的水(shui)(shui)位上限(xian)(xian)時(shi)(shi)自(zi)動停(ting)止(zhi)。這(zhe)時(shi)(shi)如果壓(ya)(ya)(ya)力(li)(li)處在系(xi)(xi)統設(she)定的壓(ya)(ya)(ya)力(li)(li)下限(xian)(xian)以下時(shi)(shi)，汽泵(beng)自(zi)動向(xiang)罐(guan)內(nei)補氣(qi)直到(dao)壓(ya)(ya)(ya)力(li)(li)達(da)到(dao)設(she)定的穩(wen)(wen)壓(ya)(ya)(ya)系(xi)(xi)統壓(ya)(ya)(ya)力(li)(li)上限(xian)(xian)時(shi)(shi)汽泵(beng)停(ting)止(zhi)。這(zhe)是一個(ge)穩(wen)(wen)壓(ya)(ya)(ya)周期的完成，此時(shi)(shi)整個(ge)消防(fang)系(xi)(xi)統處在穩(wen)(wen)壓(ya)(ya)(ya)狀(zhuang)態。

當消(xiao)(xiao)防(fang)(fang)(fang)事故發生時(shi)(shi)，消(xiao)(xiao)防(fang)(fang)(fang)及噴(pen)淋(lin)系統(tong)(tong)(tong)(tong)管路打開(kai)，這時(shi)(shi)穩壓(ya)系統(tong)(tong)(tong)(tong)壓(ya)力迅(xun)速下(xia)降，當系統(tong)(tong)(tong)(tong)降到(dao)設定的氣壓(ya)下(xia)限(xian)時(shi)(shi)，電(dian)磁網迅(xun)速打開(kai)，氣瓶系統(tong)(tong)(tong)(tong)立即啟動(dong)，高(gao)壓(ya)氣體(ti)迅(xun)速向氣壓(ya)水(shui)(shui)罐(guan)內打壓(ya)，氣壓(ya)水(shui)(shui)罐(guan)內壓(ya)力瞬(shun)間增(zeng)高(gao)，此時(shi)(shi)系統(tong)(tong)(tong)(tong)的高(gao)壓(ya)氣體(ti)把水(shui)(shui)迅(xun)速打入消(xiao)(xiao)防(fang)(fang)(fang)管道，保證(zheng)10分鐘的應急(ji)消(xiao)(xiao)防(fang)(fang)(fang)用(yong)(yong)水(shui)(shui)快速進入消(xiao)(xiao)防(fang)(fang)(fang)系統(tong)(tong)(tong)(tong)里，達到(dao)消(xiao)(xiao)防(fang)(fang)(fang)應急(ji)用(yong)(yong)水(shui)(shui)的目(mu)的，來挽救(jiu)財(cai)產和人身安(an)全。