近年來隨(sui)著(zhu)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)電(dian)(dian)(dian)器工(gong)作(zuo)環境的(de)(de)變化(hua)，在防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)電(dian)(dian)(dian)器進行設(she)(she)計(ji)(ji)時，還(huan)需(xu)(xu)要(yao)考慮工(gong)作(zuo)環境發(fa)(fa)生變化(hua)或事故工(gong)況，對(dui)(dui)(dui)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)電(dian)(dian)(dian)器本體的(de)(de)沖擊(ji)既需(xu)(xu)要(yao)設(she)(she)計(ji)(ji)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)設(she)(she)備的(de)(de)機械強度。我國防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)電(dian)(dian)(dian)氣(qi)的(de)(de)發(fa)(fa)展(zhan)(zhan)(zhan)(zhan)(zhan)要(yao)追述到實際50年代(dai)，依托(tuo)當時煤礦能源(yuan)發(fa)(fa)展(zhan)(zhan)(zhan)(zhan)(zhan)的(de)(de)需(xu)(xu)要(yao)，礦用防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)電(dian)(dian)(dian)機成為主要(yao)的(de)(de)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)電(dian)(dian)(dian)氣(qi)設(she)(she)備。進入70年代(dai)末期(qi)80年代(dai)后本質安(an)(an)全(quan)型(xing)。曾(ceng)安(an)(an)型(xing)等(deng)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)設(she)(she)備的(de)(de)崛起迅速在防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)電(dian)(dian)(dian)氣(qi)市場中占據了(le)一(yi)席(xi)之(zhi)地。由于市場以及(ji)生產(chan)的(de)(de)需(xu)(xu)要(yao)，國內防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)規程。防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)電(dian)(dian)(dian)機制造檢驗標準(zhun)應運(yun)而(er)生，推動了(le)我國防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)電(dian)(dian)(dian)氣(qi)事業(ye)的(de)(de)發(fa)(fa)展(zhan)(zhan)(zhan)(zhan)(zhan)。隨(sui)著(zhu)國家大力扶植(zhi)發(fa)(fa)展(zhan)(zhan)(zhan)(zhan)(zhan)核電(dian)(dian)(dian)事業(ye)。石(shi)化(hua)煉(lian)油產(chan)業(ye)，石(shi)化(hua)企業(ye)對(dui)(dui)(dui)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)電(dian)(dian)(dian)機，電(dian)(dian)(dian)泵的(de)(de)需(xu)(xu)求與日俱(ju)增。促使防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)電(dian)(dian)(dian)氣(qi)的(de)(de)設(she)(she)計(ji)(ji)需(xu)(xu)要(yao)更(geng)全(quan)面、更(geng)嚴謹，需(xu)(xu)要(yao)展(zhan)(zhan)(zhan)(zhan)(zhan)開(kai)分析(xi)計(ji)(ji)算以及(ji)設(she)(she)備可靠(kao)性論(lun)證。本文通過對(dui)(dui)(dui)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)接線盒結構設(she)(she)計(ji)(ji)介紹。

　　1、結構概述

　　防(fang)爆接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)本體包(bao)括(kuo)：接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)座處(chu)密封(feng)、接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)上蓋(gai)螺(luo)(luo)栓(shuan) 、接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)上蓋(gai)密封(feng)、接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)、接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)柱(zhu)、接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)座、接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)座處(chu)螺(luo)(luo)栓(shuan)、接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)體、接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)斗、動力電纜，接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)蓋(gai)與接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)體、接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)體與接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)座分別通(tong)過(guo)(guo)鏈接(jie)(jie)(jie)(jie)(jie)螺(luo)(luo)栓(shuan)實現(xian)三者(zhe)的連(lian)接(jie)(jie)(jie)(jie)(jie)緊固，接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)斗與接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)體通(tong)過(guo)(guo)角焊縫形式(shi)鏈接(jie)(jie)(jie)(jie)(jie)。在接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)蓋(gai)與接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)座處(chu)設有密封(feng)墊，以保證接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)盒(he)密封(feng)。動力電纜又接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)斗引(yin)入(ru)與接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)柱(zhu)通(tong)過(guo)(guo)螺(luo)(luo)母緊固的方(fang)式(shi)項鏈。

　　2、防爆結構設計

　　在(zai)防(fang)爆(bao)(bao)設計時，首先要(yao)考慮其設計順(shun)序既流程。根據(ju)設備類型與工作(zuo)環(huan)境，識別點燃源，主要(yao)包括電器與非電氣兩(liang)部分(fen)，然后識別防(fang)爆(bao)(bao)路(lu)徑在(zai)根據(ju)相關標(biao)準(zhun)選擇(ze)與設計防(fang)爆(bao)(bao)間隙(xi)與長度(du)。根據(ju)上(shang)述(shu)分(fen)析隔爆(bao)(bao)設計主要(yao)集(ji)中在(zai)接(jie)線(xian)(xian)盒部分(fen)。根據(ju)GB3836防(fang)爆(bao)(bao)規程，在(zai)接(jie)線(xian)(xian)盒蓋(gai)與接(jie)線(xian)(xian)盒體的安(an)裝止(zhi)口上(shang)，選擇(ze)合(he)適長度(du)與防(fang)爆(bao)(bao)間隙(xi)。隔爆(bao)(bao)面構成防(fang)爆(bao)(bao)設計的主體。在(zai)接(jie)線(xian)(xian)柱與接(jie)線(xian)(xian)盒蓋(gai)處設有防(fang)爆(bao)(bao)螺紋面，是加嚴隔爆(bao)(bao)面，進一步提(ti)高防(fang)爆(bao)(bao)接(jie)線(xian)(xian)盒的防(fang)爆(bao)(bao)設計可(ke)靠性。