![]() | 15808023761 15808023760 023-47546974 |
手(shou)機:15808023761
15808023760
電話:023-47546974
網址:lianghm.cn
地址(zhi):重慶市(shi)江津(jin)區雙福新區福星大道937號鑫(xin)成瑞暖(nuan)通廠區
通風(feng)(feng)(feng)(feng)(feng)管(guan)道(dao)(dao)(dao)安裝(zhuang)程序:(1)風(feng)(feng)(feng)(feng)(feng)管(guan)組裝(zhuang):當(dang)風(feng)(feng)(feng)(feng)(feng)管(guan)較短(duan)時(shi)(shi)(shi),可(ke)一次在(zai)地面組裝(zhuang)而(er)成,當(dang)風(feng)(feng)(feng)(feng)(feng)管(guan)較長時(shi)(shi)(shi),可(ke)視(shi)安裝(zhuang)場地的(de)情況(kuang),在(zai)地面分段組裝(zhuang)。組裝(zhuang)時(shi)(shi)(shi)應(ying)(ying)(ying)(ying)盡量調(diao)(diao)整風(feng)(feng)(feng)(feng)(feng)道(dao)(dao)(dao)的(de)中心度(du)(du)和水平度(du)(du),避免風(feng)(feng)(feng)(feng)(feng)管(guan)扭曲或上(shang)下起波,左右擺龍,每段風(feng)(feng)(feng)(feng)(feng)道(dao)(dao)(dao)不宜超過10m.組裝(zhuang)時(shi)(shi)(shi),墊片應(ying)(ying)(ying)(ying)墊平,法(fa)(fa)(fa)蘭螺栓應(ying)(ying)(ying)(ying)均勻(yun)擰緊(jin),螺母帽均朝向(xiang)(xiang)同(tong)一方(fang)(fang)向(xiang)(xiang)。(2)風(feng)(feng)(feng)(feng)(feng)管(guan)就位(wei)(wei):風(feng)(feng)(feng)(feng)(feng)管(guan)就位(wei)(wei)前應(ying)(ying)(ying)(ying)檢查(cha)(cha)全部支架(jia)的(de)水乎度(du)(du)和標(biao)高(gao)、檢查(cha)(cha)支架(jia)的(de)牢固(gu)程度(du)(du),風(feng)(feng)(feng)(feng)(feng)管(guan)就位(wei)(wei)可(ke)采用(yong)直接和吊(diao)具兩種方(fang)(fang)法(fa)(fa)(fa)。對(dui)風(feng)(feng)(feng)(feng)(feng)管(guan)斷面較小(xiao),又位(wei)(wei)置較低的(de)可(ke)采用(yong)人(ren)工就位(wei)(wei)方(fang)(fang)法(fa)(fa)(fa),只需搭設(she)(she)簡易腳手(shou)架(jia)即(ji)可(ke)。當(dang)風(feng)(feng)(feng)(feng)(feng)管(guan)斷面較大(da)(da)且管(guan)段較長時(shi)(shi)(shi),可(ke)采用(yong)滑輪(lun)、倒(dao)鏈、大(da)(da)繩等方(fang)(fang)法(fa)(fa)(fa)吊(diao)裝(zhuang)。世紀星介紹為了便于風(feng)(feng)(feng)(feng)(feng)道(dao)(dao)(dao)就位(wei)(wei),一般(ban)多采用(yong)將(jiang)風(feng)(feng)(feng)(feng)(feng)道(dao)(dao)(dao)吊(diao)在(zai)腳手(shou)架(jia)上(shang),然后再將(jiang)其(qi)抬放在(zai)風(feng)(feng)(feng)(feng)(feng)道(dao)(dao)(dao)支架(jia)上(shang)的(de)方(fang)(fang)法(fa)(fa)(fa)。腳手(shou)架(jia)應(ying)(ying)(ying)(ying)沿其(qi)風(feng)(feng)(feng)(feng)(feng)道(dao)(dao)(dao)長度(du)(du)方(fang)(fang)向(xiang)(xiang)搭設(she)(she),高(gao)度(du)(du)和位(wei)(wei)置應(ying)(ying)(ying)(ying)適(shi)合施(shi)工操作,吊(diao)裝(zhuang)順序應(ying)(ying)(ying)(ying)先干管(guan)后支、立管(guan),吊(diao)起時(shi)(shi)(shi),吊(diao)點(dian)應(ying)(ying)(ying)(ying)牢固(gu),兩吊(diao)點(dian)應(ying)(ying)(ying)(ying)均勻(yun)受力(li)。垂直風(feng)(feng)(feng)(feng)(feng)管(guan)可(ke)采用(yong)人(ren)工和大(da)(da)繩輔助就位(wei)(wei)。調(diao)(diao)整風(feng)(feng)(feng)(feng)(feng)管(guan)保(bao)證垂直度(du)(du)要求(qiu)。(3)風(feng)(feng)(feng)(feng)(feng)道(dao)(dao)(dao)調(diao)(diao)直:就位(wei)(wei)在(zai)支架(jia)上(shang)的(de)風(feng)(feng)(feng)(feng)(feng)道(dao)(dao)(dao),應(ying)(ying)(ying)(ying)撥正位(wei)(wei)置,調(diao)(diao)整風(feng)(feng)(feng)(feng)(feng)道(dao)(dao)(dao)橫平豎直,然后再按圖集要求(qiu)固(gu)定。
1. 技術背景,在焊接接頭中由于焊接所引起的各種裂紋,統稱焊接裂紋。焊接裂紋在焊縫金屬與熱影響區中都可能產生,是焊接凝固冶金和固相冶金過程中產生為危險的一種缺陷。焊接結構產生的破壞事故大部分都是焊接裂紋所引起的。隨著現代工業的發展,焊接結構也趨向大型化、大容量和高參數發展。有的推薦通風管在低溫、腐蝕介質下工作,也有的在高溫高壓下工作,廣泛都用到各種高合金鋼、不銹鋼,以及種種合金材料。這些材料往往都對裂紋十分敏感,而裂紋卻又是大多重大事故的誘因,必須十分重視。焊接裂紋種類繁多,產生的條件和原因各不相同。有些裂紋在焊后立即產生了,有些通風管廠家在焊(han)后延續(xu)一定(ding)時間再產(chan)生(sheng),甚至(zhi)在使用(yong)過程中,在一定(ding)的(de)外界條件誘發(fa)下再產(chan)生(sheng)。裂紋既(ji)出現在焊(han)縫(feng)和熱影響區表面,也產(chan)生(sheng)在其內部。它對焊(han)接結構的(de)危害(hai)有以下幾點。
鑒于(yu)軸(zhou)流(liu)(liu)風(feng)(feng)機(ji)有(you)紊(wen)流(liu)(liu)區(qu)的(de)性(xing)能(neng)特點(dian),在(zai)(zai)(zai)選型和(he)使用時,需要(yao)(yao)注意(yi)以(yi)下(xia)兩點(dian):建(jian)議使用在(zai)(zai)(zai)空(kong)曠(kuang)環境中(zhong),軸(zhou)流(liu)(liu)風(feng)(feng)機(ji)的(de)輸(shu)入功率(lv)隨(sui)系(xi)統(tong)靜(jing)壓的(de)增(zeng)大(da)而(er)增(zeng)大(da),而(er)在(zai)(zai)(zai)紊(wen)流(liu)(liu)區(qu),輸(shu)入功率(lv)的(de)增(zeng)大(da)幅度會更大(da)。因此(ci),軸(zhou)流(liu)(liu)風(feng)(feng)機(ji)一般多應用在(zai)(zai)(zai)有(you)較大(da)空(kong)曠(kuang)環境的(de)場合下(xia),可以(yi)使其工作在(zai)(zai)(zai)靜(jing)壓較低的(de)環境下(xia),降低功耗,保證(zheng)穩定性(xing)和(he)壽命。定期清(qing)理(li)風(feng)(feng)道(dao),當軸(zhou)流(liu)(liu)風(feng)(feng)機(ji)應用在(zai)(zai)(zai)較為封閉(bi)的(de)風(feng)(feng)道(dao)系(xi)統(tong)中(zhong)時,長期運(yun)行后(hou)風(feng)(feng)道(dao)中(zhong)的(de)積灰、垃圾(ji)逐(zhu)(zhu)漸變多,會使風(feng)(feng)道(dao)內的(de)靜(jing)壓逐(zhu)(zhu)漸增(zeng)加,使得(de)風(feng)(feng)機(ji)的(de)運(yun)行工況點(dian)逐(zhu)(zhu)漸左(zuo)移。這不僅會降低風(feng)(feng)機(ji)性(xing)能(neng),更重要(yao)(yao)的(de)是會增(zeng)加軸(zhou)流(liu)(liu)風(feng)(feng)機(ji)進入紊(wen)流(liu)(liu)區(qu)的(de)風(feng)(feng)險。因此(ci)必須(xu)要(yao)(yao)定期清(qing)理(li)風(feng)(feng)道(dao),保證(zheng)風(feng)(feng)機(ji)工況點(dian)不產生較大(da)偏移。
一、對(dui)通(tong)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)制作(zuo)的(de)(de)(de)(de)要(yao)求進行檢查(cha)(cha)(cha):檢查(cha)(cha)(cha)通(tong)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)穿越防護密(mi)(mi)(mi)(mi)閉(bi)(bi)墻(qiang)、密(mi)(mi)(mi)(mi)閉(bi)(bi)墻(qiang)的(de)(de)(de)(de)預(yu)埋密(mi)(mi)(mi)(mi)閉(bi)(bi)穿墻(qiang)短(duan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。通(tong)風(feng)(feng)預(yu)埋密(mi)(mi)(mi)(mi)閉(bi)(bi)短(duan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)采(cai)用(yong)(yong)厚度(du)不(bu)小于(yu)(yu)3mm鋼板(ban)機(ji)械(xie)卷制成(cheng)(cheng)形(其(qi)厚度(du)還應(ying)根據預(yu)埋管(guan)(guan)(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑大小確定,使預(yu)埋管(guan)(guan)(guan)(guan)(guan)(guan)(guan)不(bu)致變形),防爆超(chao)壓排氣活(huo)門(men)的(de)(de)(de)(de)預(yu)埋短(duan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)其(qi)厚度(du)為(wei)6mm,密(mi)(mi)(mi)(mi)閉(bi)(bi)短(duan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)中間應(ying)設(she)密(mi)(mi)(mi)(mi)閉(bi)(bi)肋(lei),密(mi)(mi)(mi)(mi)閉(bi)(bi)肋(lei)厚度(du)為(wei)5mm,密(mi)(mi)(mi)(mi)閉(bi)(bi)肋(lei)高(gao)度(du)為(wei)50mm,密(mi)(mi)(mi)(mi)閉(bi)(bi)肋(lei)與(yu)(yu)(yu)(yu)短(duan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)應(ying)雙面滿焊、焊縫嚴密(mi)(mi)(mi)(mi)。密(mi)(mi)(mi)(mi)閉(bi)(bi)穿墻(qiang)短(duan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)兩(liang)端深(shen)處(chu)墻(qiang)面的(de)(de)(de)(de)長度(du)應(ying)大于(yu)(yu)100mm,管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)內外部除(chu)與(yu)(yu)(yu)(yu)混凝土接(jie)(jie)(jie)觸(chu)(chu)部分(fen)外均(jun)應(ying)刷兩(liang)道(dao)(dao)(dao)防銹漆。二、對(dui)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)連(lian)接(jie)(jie)(jie)處(chu)制作(zuo)的(de)(de)(de)(de)要(yao)求進行檢查(cha)(cha)(cha),對(dui)染毒(du)區的(de)(de)(de)(de)通(tong)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)連(lian)接(jie)(jie)(jie)方法(fa)及密(mi)(mi)(mi)(mi)封(feng)進行檢查(cha)(cha)(cha)。如無設(she)計要(yao)求,其(qi)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)厚度(du)應(ying)采(cai)用(yong)(yong)大于(yu)(yu)等于(yu)(yu)3mm的(de)(de)(de)(de)鋼板(ban)焊接(jie)(jie)(jie)制作(zuo)而成(cheng)(cheng)。風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)與(yu)(yu)(yu)(yu)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)連(lian)接(jie)(jie)(jie)應(ying)采(cai)用(yong)(yong)焊接(jie)(jie)(jie)連(lian)接(jie)(jie)(jie)。通(tong)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)與(yu)(yu)(yu)(yu)密(mi)(mi)(mi)(mi)閉(bi)(bi)閥(fa)門(men)的(de)(de)(de)(de)連(lian)接(jie)(jie)(jie)應(ying)采(cai)用(yong)(yong)帶(dai)密(mi)(mi)(mi)(mi)封(feng)槽的(de)(de)(de)(de)法(fa)蘭(lan)(lan)(lan)連(lian)接(jie)(jie)(jie),其(qi)法(fa)蘭(lan)(lan)(lan)面應(ying)經機(ji)床車削加(jia)工,保證接(jie)(jie)(jie)觸(chu)(chu)應(ying)平整(zheng),法(fa)蘭(lan)(lan)(lan)面有(you)(you)1~2mm深(shen)的(de)(de)(de)(de)90°密(mi)(mi)(mi)(mi)封(feng)槽;風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)與(yu)(yu)(yu)(yu)設(she)備(bei)連(lian)接(jie)(jie)(jie)法(fa)蘭(lan)(lan)(lan)之(zhi)間應(ying)采(cai)用(yong)(yong)整(zheng)體橡(xiang)膠法(fa)蘭(lan)(lan)(lan)墊圈,防爆超(chao)壓排氣活(huo)門(men)法(fa)蘭(lan)(lan)(lan)連(lian)接(jie)(jie)(jie)填料采(cai)用(yong)(yong)5mm整(zheng)張橡(xiang)膠墊圈密(mi)(mi)(mi)(mi)封(feng)(不(bu)得(de)有(you)(you)拼縫),其(qi)他染毒(du)區風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)連(lian)接(jie)(jie)(jie)及法(fa)蘭(lan)(lan)(lan)與(yu)(yu)(yu)(yu)設(she)備(bei)連(lian)接(jie)(jie)(jie)采(cai)用(yong)(yong)4~5mm整(zheng)張橡(xiang)膠墊圈密(mi)(mi)(mi)(mi)封(feng)(不(bu)得(de)有(you)(you)拼縫),連(lian)接(jie)(jie)(jie)處(chu)不(bu)得(de)有(you)(you)漏縫現(xian)象(xiang)。