夜色网,色欲aⅴ精品一区二区三区四区,国产精品jizz视频国产y网,欧美精品综合视频一区二区

產(chǎn)品簡介
BEZ56防爆正壓柜
BEZ56防爆正壓柜
產(chǎn)品價格:¥1
上架日期:2011-06-24 09:47:30
產(chǎn)地:江蘇南通
發(fā)貨地:江蘇南通
供應(yīng)數(shù)量:不限
最少起訂:1臺
瀏覽量:666
資料下載:暫無資料下載
其他下載:暫無相關(guān)下載
詳細說明

    適用范圍
    1 區(qū)、2 區(qū)危險氣體場所;
    IIA、IIB、IIC 類T1~T4 組性氣體或蒸氣環(huán)境;
    戶內(nèi)、戶外(IP54,*IP65)。
    Applying scope
    Hazardous gas areas: Zone 1&2 ;
    Explosive gas or vapor atmospheres:class IIA、IIB、IIC,
    temperature class: T1~T4;
    Indoor and outdoor(IP54,*IP65).

    防爆原理
    將普通電器元件裝入一個充滿保護氣體的主腔內(nèi),保證主
    腔內(nèi)部保護氣體的壓力高于外部環(huán)境氣體,以免性混
    合物進入主腔,或保證足量的保護氣體通過使內(nèi)部的
    性混合物的濃度降至下限以下,從而達到防爆的目的。
    Explosion-protected principle
    Put normal equipment components into a main chamber which
    is filled with protective gas to ensure the pressure of the inner
    protective gas is higher than the outer to pretect explosive mixture
    from entering main chamber, or to ensure enough quantity
    of protective gas so that the consistency of explosive mixture is
    below the explosion limit to achieve the aim of explosion protection.

    產(chǎn)品特色
    采用主、副盤(柜、箱)結(jié)構(gòu),主盤為正壓腔,內(nèi)裝各種規(guī)
    格普通的電器元件和防爆必須的通風(fēng)布氣系統(tǒng)、檢壓傳
    感系統(tǒng)、氣壓調(diào)節(jié)系統(tǒng)等;副盤內(nèi)裝防爆壓力顯示系統(tǒng)、
    防爆換氣自控系統(tǒng)、防爆報警系統(tǒng)、防爆電源自切換系
    統(tǒng)、進出氣源連接口、外部的進出電纜密封裝置等 ;
    正壓腔內(nèi)可安裝各種普通的檢測儀表、分析儀表、顯示儀
    表、監(jiān)視器、微電腦觸摸屏、大功率變頻器等,內(nèi)裝電器
    元件基本不受限制 ;
    外殼采用優(yōu)質(zhì)碳鋼或不銹鋼板焊接成型,表面高壓靜電
    噴塑;
    結(jié)構(gòu)形式可為盤式、柜式、箱式、操作臺式;
    按進氣方式可分為正壓通風(fēng)型和正壓補償型 ;
    正壓通風(fēng)型為不間斷連續(xù)供氣,正壓腔內(nèi)電器元件的工
    作熱量可隨時帶走,具有良好的散熱功能 ;
    正壓補償型為間斷性供氣,正壓腔具有良好的保壓密封
    性能 ;
    用戶須自給氣源( 凈化空氣或氮氣) ,氣源壓力為
    0.4MPa~0.8MPa;通?,F(xiàn)場的儀表氣源可滿足要求。
    Features
    It adopts the structure of main switchboard and assistant switchboard.
    Main switchboard is the pressurized chamber, inside installed
    the normal components and the needed ventilating system,
    sense system and air pressure adjustment system; the inside
    of assistant switchboard installed explosion-protected displaying
    system, gas exchanging autocontrol system, alarming system,
    power autoswitch system, in and out gas source joint and the
    exterior in and out cable sealing device;
    The pressurized chamber is able to install various common check
    meters, analysis meter, display meter, monitor, microcomputer
    feeling screen, high-power transducer and so on. The inside installed
    components are normally without limit;
    The shell adopts moulded high-quality carbon steel or stainless
    steel with pressurized static plastic-sprayed surface;
    The structure b includes meter panel、tank、box and operation
    platb;
    There are pressurized ventilation and pressurized compensation
    entering types.
    Pressurized ventilation type is of continuous air feed, and the
    heat of the components in general cavity can be sent out which
    provides good heat-disfusing function;
    Pressurized compensation type is of discontinuous air feed, and it
    has good pressure guarantee and sealing function;
    The user must supply gas source (clean air or nitrogen gas),the
    gas pressure is 0.4MPa~0.8Mpa; usual gas source is available

    主要技術(shù)參數(shù):
    1、防爆標(biāo)志:Ex pdemIIBT4或pdemIICT6;
    2、防護等級:IP54(*IP65);  
    3、副盤(柜、箱內(nèi)供電:AC220/230V,50Hz~60Hz,10A;
    4、輸入氣源壓力為:0.4MPa~0.8MPa,凈化空氣或氮氣等保護氣體;
    5、進氣口:G1/2
    6、換氣量:10~20m3/h
    7、換氣時間:10~30min(由防爆檢測單位確定,Tp=5×V/Q  Tp:換氣時間;V:主腔內(nèi)凈容量,Q:保護氣體流量;
    8、耗氣量:2~8m3/h
    9、功能指標(biāo):
    a、儀表電器供電前,按啟動按鈕對主盤(柜、箱)內(nèi)剩余空氣進行自動換氣,換氣結(jié)束自動維持正壓值為150Pa≤P<350Pa,此時可向正壓柜主腔內(nèi)電器供電;
    b、內(nèi)部正壓值P≥350Pa時,自動系統(tǒng)自動關(guān)閉進氣或開啟排氣閥;
    c、內(nèi)部正壓值P<150Pa時,自動補氣;
    d、內(nèi)部正壓值P<80Pa時,自動聲光報警;
    e、內(nèi)部正壓值P<50Pa時,自動切斷電源。

    執(zhí)行標(biāo)準(zhǔn)
    GB3836.1-2000、GB3836.2-2000、GB3836.3-2000、GB3836.5-2004、GB3836.9-200×

在線詢盤/留言
  • 免責(zé)聲明:以上所展示的信息由企業(yè)自行提供,內(nèi)容的真實性、準(zhǔn)確性和合法性由發(fā)布企業(yè)負責(zé),本網(wǎng)對此不承擔(dān)任何保證責(zé)任。我們原則 上建議您選擇本網(wǎng)高級會員或VIP會員。
    0571-87774297