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地址(zhi):重慶(qing)市(shi)江津區雙福新區福星大(da)道937號鑫成瑞(rui)暖(nuan)通廠區
1. 技術背景,在(zai)(zai)(zai)焊(han)(han)(han)接(jie)接(jie)頭中(zhong)(zhong)由于焊(han)(han)(han)接(jie)所(suo)(suo)引(yin)起(qi)的(de)各種(zhong)(zhong)裂(lie)(lie)紋(wen),統稱(cheng)焊(han)(han)(han)接(jie)裂(lie)(lie)紋(wen)。焊(han)(han)(han)接(jie)裂(lie)(lie)紋(wen)在(zai)(zai)(zai)焊(han)(han)(han)縫金(jin)屬與(yu)熱影(ying)響區中(zhong)(zhong)都(dou)可(ke)能產(chan)生(sheng)(sheng)(sheng),是(shi)焊(han)(han)(han)接(jie)凝(ning)固冶金(jin)和固相冶金(jin)過程中(zhong)(zhong)產(chan)生(sheng)(sheng)(sheng)為危(wei)險(xian)的(de)一(yi)種(zhong)(zhong)缺陷。焊(han)(han)(han)接(jie)結(jie)構產(chan)生(sheng)(sheng)(sheng)的(de)破壞事故大(da)部分(fen)(fen)(fen)都(dou)是(shi)焊(han)(han)(han)接(jie)裂(lie)(lie)紋(wen)所(suo)(suo)引(yin)起(qi)的(de)。隨著現代工業(ye)的(de)發展,焊(han)(han)(han)接(jie)結(jie)構也(ye)(ye)趨向大(da)型化(hua)、大(da)容量和高參數發展。有的(de)在(zai)(zai)(zai)低溫、腐蝕介質下(xia)(xia)工作(zuo),也(ye)(ye)有的(de)在(zai)(zai)(zai)高溫高壓下(xia)(xia)工作(zuo),廣泛都(dou)用到各種(zhong)(zhong)高合(he)(he)金(jin)鋼(gang)、不銹鋼(gang),以及(ji)種(zhong)(zhong)種(zhong)(zhong)合(he)(he)金(jin)材料。這些材料往往都(dou)對(dui)裂(lie)(lie)紋(wen)十分(fen)(fen)(fen)敏感,而裂(lie)(lie)紋(wen)卻又是(shi)大(da)多重大(da)事故的(de)誘因,必須(xu)十分(fen)(fen)(fen)重視。焊(han)(han)(han)接(jie)裂(lie)(lie)紋(wen)種(zhong)(zhong)類繁多,產(chan)生(sheng)(sheng)(sheng)的(de)條(tiao)件(jian)和原因各不相同(tong)。有些裂(lie)(lie)紋(wen)在(zai)(zai)(zai)焊(han)(han)(han)后(hou)(hou)立即(ji)產(chan)生(sheng)(sheng)(sheng)了(le),有些在(zai)(zai)(zai)焊(han)(han)(han)后(hou)(hou)延續一(yi)定時(shi)間再(zai)產(chan)生(sheng)(sheng)(sheng),甚至在(zai)(zai)(zai)使用過程中(zhong)(zhong),在(zai)(zai)(zai)一(yi)定的(de)外界條(tiao)件(jian)誘發下(xia)(xia)再(zai)產(chan)生(sheng)(sheng)(sheng)。裂(lie)(lie)紋(wen)既出現在(zai)(zai)(zai)焊(han)(han)(han)縫和熱影(ying)響區表(biao)面,也(ye)(ye)產(chan)生(sheng)(sheng)(sheng)在(zai)(zai)(zai)其內部。它對(dui)焊(han)(han)(han)接(jie)結(jie)構的(de)危(wei)害有以下(xia)(xia)幾點。
1、通風機(ji)安(an)(an)裝(zhuang)應符(fu)合下列規(gui)定(ding)(ding)(1)風機(ji)試運轉時(shi)(shi),葉(xie)輪旋轉方(fang)向(xiang)(xiang)正確,經(jing)不(bu)(bu)少于2H運轉后,滑動(dong)軸承溫(wen)(wen)升不(bu)(bu)超過(guo)(guo)35度,高溫(wen)(wen)度不(bu)(bu)超過(guo)(guo)70度;滾動(dong)軸承溫(wen)(wen)升不(bu)(bu)超過(guo)(guo)40度,高溫(wen)(wen)度不(bu)(bu)超過(guo)(guo)80度。(2)離心風機(ji)與減(jian)震(zhen)臺座接(jie)觸緊密,螺栓擰緊,并(bing)有防(fang)松裝(zhuang)置(zhi)。(3)管道風機(ji)采(cai)(cai)用減(jian)震(zhen)吊(diao)架(jia)安(an)(an)裝(zhuang)時(shi)(shi),風機(ji)與減(jian)震(zhen)吊(diao)架(jia)連接(jie)緊密,牢固(gu)(gu)(gu)可(ke)靠;采(cai)(cai)用支拖架(jia)安(an)(an)裝(zhuang)時(shi)(shi),風機(ji)與減(jian)震(zhen)器(qi)(qi)(qi)及支架(jia)、托架(jia)連接(jie)緊密,穩(wen)固(gu)(gu)(gu)可(ke)靠。2、過(guo)(guo)濾(lv)(lv)(lv)器(qi)(qi)(qi)、紙(zhi)除(chu)塵(chen)器(qi)(qi)(qi)、過(guo)(guo)濾(lv)(lv)(lv)器(qi)(qi)(qi)吸收器(qi)(qi)(qi)安(an)(an)裝(zhuang)應符(fu)合下列規(gui)定(ding)(ding)(1)各種設(she)(she)備(bei)的(de)(de)型號、規(gui)格(ge)、額定(ding)(ding)風量必(bi)須符(fu)合設(she)(she)計要求。(2)各種設(she)(she)備(bei)的(de)(de)安(an)(an)裝(zhuang)方(fang)向(xiang)(xiang)必(bi)須正確。(3)設(she)(she)備(bei)與管路(lu)連接(jie)時(shi)(shi),宜采(cai)(cai)用整體性的(de)(de)橡膠軟管接(jie)頭,并(bing)不(bu)(bu)得(de)漏氣;固(gu)(gu)(gu)定(ding)(ding)支架(jia)應平正穩(wen)定(ding)(ding)。(4)過(guo)(guo)濾(lv)(lv)(lv)器(qi)(qi)(qi)的(de)(de)安(an)(an)裝(zhuang)應固(gu)(gu)(gu)定(ding)(ding)牢固(gu)(gu)(gu),過(guo)(guo)濾(lv)(lv)(lv)器(qi)(qi)(qi)與框(kuang)架(jia)、框(kuang)架(jia)與維護結(jie)構(gou)之間無明顯縫隙。(5)紙(zhi)除(chu)塵(chen)器(qi)(qi)(qi)和過(guo)(guo)濾(lv)(lv)(lv)器(qi)(qi)(qi)的(de)(de)安(an)(an)裝(zhuang),應固(gu)(gu)(gu)定(ding)(ding)牢固(gu)(gu)(gu),位置(zhi)準確,連接(jie)嚴密。
一(yi)(yi)、風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)及部(bu)件(jian)安(an)裝(zhuang)(zhuang)(zhuang)的(de)(de)(de)(de)有關規定1.風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)安(an)裝(zhuang)(zhuang)(zhuang)的(de)(de)(de)(de)強制規定,當風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)穿(chuan)過需要封閉的(de)(de)(de)(de)防(fang)(fang)火、防(fang)(fang)爆(bao)墻(qiang)體(ti)或(huo)樓板(ban)時,應(ying)(ying)(ying)設(she)預埋管(guan)(guan)(guan)(guan)(guan)或(huo)防(fang)(fang)護(hu)套管(guan)(guan)(guan)(guan)(guan)。套管(guan)(guan)(guan)(guan)(guan)鋼板(ban)厚度不應(ying)(ying)(ying)小于(yu)1.6mm,風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)與防(fang)(fang)護(hu)套管(guan)(guan)(guan)(guan)(guan)之(zhi)間應(ying)(ying)(ying)用(yong)不燃且(qie)對(dui)人體(ti)無害(hai)的(de)(de)(de)(de)柔性材(cai)料封堵,風(feng)(feng)道應(ying)(ying)(ying)安(an)裝(zhuang)(zhuang)(zhuang)設(she)防(fang)(fang)火閥。風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)內嚴(yan)(yan)禁各種管(guan)(guan)(guan)(guan)(guan)道、電線敷設(she)及穿(chuan)越;輸(shu)送含有易燃易爆(bao)氣體(ti)或(huo)安(an)裝(zhuang)(zhuang)(zhuang)在(zai)易燃易爆(bao)環境的(de)(de)(de)(de)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)系統,應(ying)(ying)(ying)有良好的(de)(de)(de)(de)接(jie)地,通過生(sheng)活(huo)區、生(sheng)產房間時必須嚴(yan)(yan)密(mi),不得設(she)接(jie)口(kou);室(shi)外主管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)固定拉(la)索嚴(yan)(yan)禁拉(la)在(zai)避雷針或(huo)避雷網上。輸(shu)送溫度高于(yu)80℃的(de)(de)(de)(de)空氣的(de)(de)(de)(de)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan),應(ying)(ying)(ying)按設(she)計(ji)要求(qiu)采取防(fang)(fang)護(hu)措施(shi)。2.風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)安(an)裝(zhuang)(zhuang)(zhuang)的(de)(de)(de)(de)一(yi)(yi)般(ban)規定風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)安(an)裝(zhuang)(zhuang)(zhuang)宜在(zai)建筑(zhu)圍護(hu)結(jie)構施(shi)工(gong)完(wan)畢(bi)、場所(suo)清(qing)(qing)理后(hou)進(jin)行。凈化空調(diao)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)應(ying)(ying)(ying)在(zai)安(an)裝(zhuang)(zhuang)(zhuang)部(bu)位地面(mian)做好,墻(qiang)面(mian)抹(mo)灰(hui)工(gong)序完(wan)畢(bi),室(shi)內無飛塵(chen)或(huo)有防(fang)(fang)塵(chen)措施(shi)后(hou)進(jin)行。安(an)裝(zhuang)(zhuang)(zhuang)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)前應(ying)(ying)(ying)清(qing)(qing)除管(guan)(guan)(guan)(guan)(guan)內外雜物,并(bing)做好清(qing)(qing)潔和(he)保護(hu)工(gong)作,風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)安(an)裝(zhuang)(zhuang)(zhuang)的(de)(de)(de)(de)位置(zhi)、標高和(he)走(zou)向等應(ying)(ying)(ying)符合設(she)計(ji)要求(qiu),現場風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)接(jie)口(kou)的(de)(de)(de)(de)配(pei)置(zhi)不得縮小有效截面(mian)。
一、火(huo)災自(zi)動報(bao)(bao)(bao)警(jing)系統:對(dui)消(xiao)防(fang)火(huo)災報(bao)(bao)(bao)警(jing)控(kong)(kong)制(zhi)器進(jin)(jin)行(xing)(xing)自(zi)檢(jian)(jian)(jian)(jian)(jian)功能(neng)檢(jian)(jian)(jian)(jian)(jian)查(cha)(cha)(cha):對(dui)可測(ce)量相關參數進(jin)(jin)行(xing)(xing)查(cha)(cha)(cha)看和記(ji)錄,如回路電(dian)(dian)流等;公(gong)共場(chang)所煙感(gan)器、溫感(gan)器安裝(zhuang)檢(jian)(jian)(jian)(jian)(jian)查(cha)(cha)(cha),與底(di)座接觸是(shi)(shi)否(fou)(fou)良好,外觀是(shi)(shi)否(fou)(fou)潔(jie)凈(jing)完(wan)好;每(mei)次隨(sui)機(ji)(ji)抽(chou)(chou)取不低于(yu)5%的(de)(de)煙感(gan)或(huo)(huo)溫感(gan),噴煙或(huo)(huo)加熱(re)后查(cha)(cha)(cha)視報(bao)(bao)(bao)警(jing)是(shi)(shi)否(fou)(fou)正(zheng)(zheng)確;手(shou)動報(bao)(bao)(bao)警(jing)按(an)鈕(niu),檢(jian)(jian)(jian)(jian)(jian)查(cha)(cha)(cha)安裝(zhuang)是(shi)(shi)否(fou)(fou)牢(lao)固,有無破損及(ji)丟失;每(mei)次隨(sui)機(ji)(ji)抽(chou)(chou)取不低于(yu)5%的(de)(de)手(shou)動報(bao)(bao)(bao)警(jing)按(an)鈕(niu),進(jin)(jin)行(xing)(xing)模(mo)擬報(bao)(bao)(bao)警(jing),測(ce)試報(bao)(bao)(bao)警(jing)功能(neng)是(shi)(shi)否(fou)(fou)正(zheng)(zheng)常;對(dui)樓(lou)層內各模(mo)塊箱(xiang)(xiang)進(jin)(jin)行(xing)(xing)外觀檢(jian)(jian)(jian)(jian)(jian)查(cha)(cha)(cha),外接線是(shi)(shi)否(fou)(fou)固定良好;對(dui)聯(lian)動控(kong)(kong)制(zhi)柜上的(de)(de)按(an)鈕(niu)每(mei)次按(an)10%的(de)(de)比(bi)例進(jin)(jin)行(xing)(xing)功能(neng)試驗,控(kong)(kong)制(zhi)功能(neng)正(zheng)(zheng)常。對(dui)火(huo)災報(bao)(bao)(bao)警(jing)控(kong)(kong)制(zhi)柜、聯(lian)動控(kong)(kong)制(zhi)柜等進(jin)(jin)行(xing)(xing)清(qing)掃除塵。線路松動,應(ying)(ying)進(jin)(jin)行(xing)(xing)緊固。對(dui)自(zi)檢(jian)(jian)(jian)(jian)(jian)、消(xiao)音、復位功能(neng)檢(jian)(jian)(jian)(jian)(jian)查(cha)(cha)(cha),主(zhu)電(dian)(dian)源與備用電(dian)(dian)源切換、報(bao)(bao)(bao)警(jing)檢(jian)(jian)(jian)(jian)(jian)查(cha)(cha)(cha)。二、應(ying)(ying)急照(zhao)明及(ji)疏(shu)散指示(shi)燈(deng)(deng)(deng)每(mei)3個月進(jin)(jin)行(xing)(xing)一次備用電(dian)(dian)池亮(liang)燈(deng)(deng)(deng)(半個小(xiao)時),使電(dian)(dian)池放(fang)電(dian)(dian)后再(zai)充電(dian)(dian),延長電(dian)(dian)池壽(shou)命;檢(jian)(jian)(jian)(jian)(jian)查(cha)(cha)(cha)出(chu)口(kou)(kou)指示(shi)燈(deng)(deng)(deng)玻璃(li)面(mian)板(ban)有無劃傷或(huo)(huo)破裂現(xian)象;出(chu)口(kou)(kou)指示(shi)燈(deng)(deng)(deng)電(dian)(dian)源指示(shi)燈(deng)(deng)(deng)是(shi)(shi)否(fou)(fou)亮(liang),如不亮(liang),應(ying)(ying)立即修理(li);檢(jian)(jian)(jian)(jian)(jian)查(cha)(cha)(cha)出(chu)口(kou)(kou)指示(shi)燈(deng)(deng)(deng)安裝(zhuang)是(shi)(shi)否(fou)(fou)牢(lao)固;針對(dui)檢(jian)(jian)(jian)(jian)(jian)查(cha)(cha)(cha)中發現(xian)的(de)(de)缺(que)陷(xian)取下來進(jin)(jin)行(xing)(xing)修復,再(zai)裝(zhuang)回原位;燈(deng)(deng)(deng)箱(xiang)(xiang)外殼及(ji)面(mian)板(ban)擦抹干(gan)凈(jing)。
排煙防火閥在火災發生時起到重要的保護作用,因此其安全及耐高溫性能要好。那么大家對其還有哪些了解呢?下面就跟隨渝中鍍鋅通風管簡要了解下其主要功能及相關優勢吧。這款排煙防火閥輸入DC24V電信號,電磁鐵動作、閥門敏捷敞開;手動封閉,手動復位敞開;可輸出閥門開封閉信號及聯鎖操控信號;0°~90°范圍內手動調理葉片敞開度;(調理型)。其鍍鋅通風管主要優勢(shi)有:1.漏風(feng)量低(di)、氣密功能好(hao);2.電動(dong)敞開耗(hao)費電流小(xiao);3.防腐功能強(qiang),運用壽命長;4.執行機(ji)構(gou)驅動(dong)靈敏,反應、聯鎖信號精確(que)。