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吸附塔格柵板設計制造及安裝過程優化
發布人:管理員   發布時間:2023-4-4

           吸附塔格(ge)(ge)柵(zha)板柵(zha)面(mian)及邊(bian)框(kuang)與焊(han)(han)接(jie)(jie)條形(xing)篩(shai)(shai)(shai)網(wang)(wang)(wang)多采(cai)(cai)用相同的碳鋼(gang)(gang)材(cai)(cai)料(liao),并(bing)且邊(bian)框(kuang)與焊(han)(han)接(jie)(jie)條形(xing)篩(shai)(shai)(shai)網(wang)(wang)(wang)之間(jian)采(cai)(cai)用直(zhi)接(jie)(jie)焊(han)(han)接(jie)(jie)結構。實際使(shi)用情(qing)況(kuang)是碳鋼(gang)(gang)焊(han)(han)接(jie)(jie)條形(xing)篩(shai)(shai)(shai)網(wang)(wang)(wang)易生銹,造(zao)成縫隙堵塞,繼(ji)而(er)(er)壓(ya)降(jiang)增(zeng)大,從(cong)面(mian)影響正常操(cao)作。此(ci)次(ci)新設計的吸附塔格(ge)(ge)柵(zha)板柵(zha)面(mian)篩(shai)(shai)(shai)網(wang)(wang)(wang)采(cai)(cai)用不銹鋼(gang)(gang)材(cai)(cai)料(liao),通過增(zeng)加連(lian)接(jie)(jie)部(bu)件(jian)的方式,將(jiang)不銹鋼(gang)(gang)篩(shai)(shai)(shai)網(wang)(wang)(wang)與碳鋼(gang)(gang)邊(bian)框(kuang)連(lian)接(jie)(jie)成為一個整體,并(bing)通過焊(han)(han)接(jie)(jie)工藝評定,確定焊(han)(han)接(jie)(jie)工藝規程,焊(han)(han)接(jie)(jie)時注(zhu)意焊(han)(han)接(jie)(jie)順序以減小(xiao)應(ying)力集中和變形(xing)。焊(han)(han)接(jie)(jie)完成后焊(han)(han)縫外觀應(ying)進行全面(mian)檢查,不僅消(xiao)除了異種材(cai)(cai)料(liao)焊(han)(han)接(jie)(jie)溫度形(xing)變應(ying)力,而(er)(er)且柵(zha)面(mian)無泄(xie)漏、篩(shai)(shai)(shai)網(wang)(wang)(wang)平(ping)整且整體剛度好。

                                                

 

格柵板設計     
          格柵板柵(zha)面(mian)(mian)與(yu)管(guan)線連(lian)接通(tong)常采用法蘭結(jie)構,由于(yu)(yu)吸附塔(ta)工(gong)(gong)藝(yi)要求高,現場配(pei)管(guan)時要求無應(ying)力焊(han)接,而法蘭結(jie)構對于(yu)(yu)焊(han)口(kou)的(de)間(jian)隙及(ji)錯邊(bian)量(liang)要求極高,為(wei)了(le)降低現場安裝(zhuang)(zhuang)配(pei)管(guan)組對焊(han)接施工(gong)(gong)難度,提(ti)高配(pei)管(guan)施工(gong)(gong)質量(liang)和工(gong)(gong)作效(xiao)率,格(ge)(ge)柵(zha)分配(pei)支(zhi)(zhi)管(guan)采用特(te)殊變徑結(jie)構件(jian),消(xiao)除以(yi)往法蘭連(lian)接方(fang)式由于(yu)(yu)間(jian)隙及(ji)錯邊(bian)量(liang)偏差帶來(lai)的(de)組裝(zhuang)(zhuang)應(ying)力。通(tong)過設計(ji)位于(yu)(yu)格(ge)(ge)柵(zha)間(jian)或(huo)格(ge)(ge)柵(zha)與(yu)器壁間(jian)懸掛于(yu)(yu)格(ge)(ge)柵(zha)邊(bian)框上表面(mian)(mian)結(jie)構件(jian),支(zhi)(zhi)撐格(ge)(ge)柵(zha)縫隙間(jian)的(de)密封繩填料(liao)保(bao)證其(qi)填塞密實。并隨裝(zhuang)(zhuang)置運轉物料(liao)周期切換確保(bao)物料(liao)或(huo)吸附劑不產生泄(xie)漏。操作簡便,格(ge)(ge)柵(zha)就(jiu)位后無需(xu)移動或(huo)補(bu)焊(han)檔(dang)條,大幅(fu)降低了(le)工(gong)(gong)作量(liang),縮短了(le)安裝(zhuang)(zhuang)工(gong)(gong)期。

格柵板制造
          為保證吸附塔格柵板質量,對格柵組裝制造提出過程控制及檢驗要求。例如篩網支撐梁焊接后的平面度、格柵邊框的垂直度、篩網的表面隆起量都提出嚴格的公差要求。某煉廠在吸附塔安裝過程中曾出現管件質量問題導致的停工,為避免這種情況的出現,影響工期進度,對制造方所采用的管件也要單獨提出附加要求,無論管件是冷成形還是熱成形,成形后均須進行正火處理。所有經熱處理、矯形、機加工后的成品管件,須逐件對內、外側全表面進行磁粉檢測,檢測標準為NB/T470134.質量等級符合l級的要求。抽取部分管件進行化學成分分析、進行拉伸試驗、壓扁試驗等,逐件進行超聲檢測,所有結果都應符合相應國家標準。
          由于格(ge)(ge)柵(zha)除表(biao)面(mian)(mian)的(de)篩(shai)網采用不(bu)銹鋼外,其他部(bu)件(jian)均采用碳鋼制(zhi)造(zao),所以對制(zhi)造(zao)廠(chang)(chang)提(ti)出除篩(shai)阿外的(de)零(ling)部(bu)件(jian)加工完(wan)畢(bi)后(hou)進行(xing)發黑處(chu)理,并在格(ge)(ge)柵(zha)表(biao)面(mian)(mian)噴(pen)涂白油進行(xing)保護。格(ge)(ge)柵(zha)出廠(chang)(chang)前,制(zhi)造(zao)方(fang)按照實際塔(ta)器尺(chi)寸制(zhi)作(zuo)模(mo)擬簡體對所有(you)(you)的(de)格(ge)(ge)柵(zha)和內(nei)部(bu)管(guan)線進行(xing)預組裝及修配,預組裝完(wan)成對所有(you)(you)部(bu)件(jian)編號及打永(yong)久性(xing)(xing)標記。每(mei)塊頂、底格(ge)(ge)柵(zha)還需進行(xing)氣密性(xing)(xing)檢驗(yan)。所有(you)(you)格(ge)(ge)柵(zha)及接管(guan)內(nei)部(bu)不(bu)得有(you)(you)鐵屑雜物(wu)及灰(hui)塵(chen)等附著物(wu)。通過出廠(chang)(chang)驗(yan)收后(hou),所有(you)(you)吸附塔(ta)內(nei)構件(jian)按照相(xiang)應規范(fan)或標準要求分類裝箱,保證運(yun)輸過程中(zhong)干燥無損環,格(ge)(ge)根(gen)篩(shai)網表(biao)面(mian)(mian)內(nei)鋪膠皮,外加保護板(ban)。

格柵板安裝
          吸附塔(ta)格柵(zha)(zha)的(de)(de)(de)(de)安裝(zhuang)和吸附劑(ji)(ji)(ji)裝(zhuang)填(tian)(tian)(tian)(tian)交替(ti)進(jin)(jin)(jin)行(xing)(xing)(xing),現場連續(xu)作業,在保證質量的(de)(de)(de)(de)前提(ti)下可(ke)(ke)以(yi)通過(guo)(guo)一(yi)(yi)(yi)(yi)些優(you)化(hua)措施(shi)加(jia)(jia)(jia)快(kuai)施(shi)工(gong)(gong)(gong)進(jin)(jin)(jin)度(du)。首先是(shi)對于施(shi)工(gong)(gong)(gong)人(ren)(ren)員的(de)(de)(de)(de)技術交底(di)(di)(di)一(yi)(yi)(yi)(yi)定要(yao)完(wan)善明確,一(yi)(yi)(yi)(yi)是(shi)清楚自己(ji)的(de)(de)(de)(de)工(gong)(gong)(gong)作內(nei)容,二是(shi)嚴(yan)(yan)格按照(zhao)要(yao)求(qiu)(qiu)進(jin)(jin)(jin)行(xing)(xing)(xing)施(shi)工(gong)(gong)(gong),可(ke)(ke)最(zui)(zui)(zui)大(da)程(cheng)度(du)降(jiang)低返工(gong)(gong)(gong)的(de)(de)(de)(de)概(gai)率。頂(ding)、底(di)(di)(di)格柵(zha)(zha)焊(han)接(jie)(jie)量大(da),施(shi)工(gong)(gong)(gong)人(ren)(ren)員一(yi)(yi)(yi)(yi)定要(yao)按照(zhao)提(ti)供(gong)的(de)(de)(de)(de)焊(han)接(jie)(jie)方案進(jin)(jin)(jin)行(xing)(xing)(xing)塔(ta)外試(shi)焊(han),明確電流大(da)小,最(zui)(zui)(zui)大(da)程(cheng)度(du)降(jiang)低焊(han)接(jie)(jie)過(guo)(guo)程(cheng)對格柵(zha)(zha)造成的(de)(de)(de)(de)負面(mian)影響(xiang)。頂(ding)、底(di)(di)(di)格柵(zha)(zha)焊(han)接(jie)(jie)完(wan)成后要(yao)進(jin)(jin)(jin)行(xing)(xing)(xing)氣密(mi)試(shi)臉,沖壓(ya)過(guo)(guo)程(cheng)嚴(yan)(yan)防(fang)超(chao)壓(ya)。在安裝(zhuang)過(guo)(guo)程(cheng)中(zhong),格柵(zha)(zha)就位后要(yao)進(jin)(jin)(jin)行(xing)(xing)(xing)填(tian)(tian)(tian)(tian)塞(sai)密(mi)封繩的(de)(de)(de)(de)工(gong)(gong)(gong)序(xu),頂(ding)、底(di)(di)(di)格據(ju)填(tian)(tian)(tian)(tian)繩主要(yao)目的(de)(de)(de)(de)在于固(gu)(gu)定格棚(peng),所以(yi)對于填(tian)(tian)(tian)(tian)繩的(de)(de)(de)(de)平(ping)整度(du)要(yao)求(qiu)(qiu)可(ke)(ke)適當降(jiang)低,填(tian)(tian)(tian)(tian)實即(ji)可(ke)(ke)。中(zhong)間(jian)格棚(peng)填(tian)(tian)(tian)(tian)繩填(tian)(tian)(tian)(tian)塞(sai)完(wan)打底(di)(di)(di)的(de)(de)(de)(de)層數(shu)后,再向上填(tian)(tian)(tian)(tian)充時(shi)可(ke)(ke)降(jiang)低編(bian)結(jie)(jie)的(de)(de)(de)(de)要(yao)求(qiu)(qiu),以(yi)找(zhao)平(ping)為(wei)日的(de)(de)(de)(de),直到最(zui)(zui)(zui)后兩層在要(yao)求(qiu)(qiu)完(wan)整并(bing)編(bian)結(jie)(jie)。這樣(yang)前面(mian)編(bian)結(jie)(jie)時(shi)可(ke)(ke)不考(kao)慮高度(du)找(zhao)平(ping),后面(mian)找(zhao)平(ping)時(shi)不受編(bian)結(jie)(jie)限制,加(jia)(jia)(jia)快(kuai)填(tian)(tian)(tian)(tian)繩速(su)度(du)。對于中(zhong)間(jian)格柵(zha)(zha),打底(di)(di)(di)的(de)(de)(de)(de)密(mi)封繩填(tian)(tian)(tian)(tian)塞(sai)完(wan)成后,格柵(zha)(zha)的(de)(de)(de)(de)相(xiang)對位置已經(jing)固(gu)(gu)定,這時(shi)可(ke)(ke)進(jin)(jin)(jin)行(xing)(xing)(xing)分(fen)配(pei)管的(de)(de)(de)(de)測量下料工(gong)(gong)(gong)作,同步進(jin)(jin)(jin)行(xing)(xing)(xing)優(you)化(hua)工(gong)(gong)(gong)序(xu)。在裝(zhuang)劑(ji)(ji)(ji)過(guo)(guo)程(cheng)中(zhong),一(yi)(yi)(yi)(yi)定要(yao)確保未裝(zhuang)劑(ji)(ji)(ji)床層的(de)(de)(de)(de)環形(xing)分(fen)配(pei)室(shi)(shi)處(chu)于封閉狀態,防(fang)止(zhi)吸附劑(ji)(ji)(ji)進(jin)(jin)(jin)人(ren)(ren),一(yi)(yi)(yi)(yi)旦有吸附劑(ji)(ji)(ji)進(jin)(jin)(jin)人(ren)(ren)到環形(xing)分(fen)配(pei)室(shi)(shi)內(nei),會影響(xiang)床層完(wan)整性(xing)試(shi)驗(yan)的(de)(de)(de)(de)結(jie)(jie)果判斷,從而(er)增加(jia)(jia)(jia)完(wan)整性(xing)試(shi)驗(yan)的(de)(de)(de)(de)次(ci)數(shu)耽誤(wu)工(gong)(gong)(gong)期。

          在(zai)格柵(zha)設計(ji)扁平(ping)化(hua)的(de)基礎上,確定(ding)合適(shi)的(de)計(ji)算(suan)模型。通過(guo)強度(du)計(ji)算(suan)可以證(zheng)明,本設計(ji)的(de)吸附塔格柵(zha)結構(gou)也是安全可靠的(de)。在(zai)設計(ji)上進行改進,通過(guo)特殊內件(jian)(jian)的(de)設計(ji)提高格柵(zha)質量(liang),降低現場安裝難(nan)度(du),并(bing)通過(guo)優(you)化(hua)安裝工序,加快(kuai)現場施工進度(du)。針(zhen)對以往(wang)格柵(zha)制造(zao)中(zhong)出現的(de)問題,加強過(guo)程控制,對制造(zao)方(fang)提出更加詳細明確的(de)制造(zao)檢(jian)驗要求,保證(zheng)運輸(shu)到現場的(de)格柵(zha)符合設計(ji)要求,相(xiang)連接的(de)管件(jian)(jian)質量(liang)合格。


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