板(ban)(ban)(ban)(ban)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)器(qi)(qi)行(xing)業(ye)概況（1）板(ban)(ban)(ban)(ban)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)器(qi)(qi)作為一(yi)(yi)種高效、節能、緊湊的(de)(de)(de)換(huan)(huan)熱(re)(re)設備(bei)，國(guo)(guo)外(wai)五、六(liu)十年(nian)(nian)代(dai)已(yi)廣(guang)泛應(ying)用于(yu)(yu)(yu)各行(xing)業(ye)。我國(guo)(guo)自(zi)六(liu)十年(nian)(nian)代(dai)初(chu)期開始引進并(bing)(bing)應(ying)用，近30年(nian)(nian)來得到(dao)了(le)較快的(de)(de)(de)發(fa)(fa)展。市(shi)場(chang)調研，只有可(ke)拆式(shi)(shi)(shi)(shi)板(ban)(ban)(ban)(ban)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)器(qi)(qi)，中(zhong)國(guo)(guo)市(shi)場(chang)的(de)(de)(de)年(nian)(nian)需求(qiu)量(liang)就已(yi)經(jing)達到(dao)了(le)150個億(yi)，而(er)且還在(zai)(zai)呈逐年(nian)(nian)遞增趨勢。巨大(da)的(de)(de)(de)需求(qiu)市(shi)場(chang)促成了(le)國(guo)(guo)內(nei)近900家(jia)企業(ye)從事板(ban)(ban)(ban)(ban)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)器(qi)(qi)的(de)(de)(de)生(sheng)產(chan)，加上國(guo)(guo)外(wai)的(de)(de)(de)板(ban)(ban)(ban)(ban)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)器(qi)(qi)生(sheng)產(chan)廠家(jia)，目前從事板(ban)(ban)(ban)(ban)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)器(qi)(qi)生(sheng)產(chan)制(zhi)造的(de)(de)(de)企業(ye)已(yi)達一(yi)(yi)千余家(jia)。在(zai)(zai)國(guo)(guo)外(wai)的(de)(de)(de)板(ban)(ban)(ban)(ban)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)器(qi)(qi)廠家(jia)不斷(duan)在(zai)(zai)新工(gong)藝(yi)、新材料(liao)、新技(ji)術(shu)(shu)上投入資(zi)金和(he)(he)研發(fa)(fa)力(li)(li)量(liang)，不斷(duan)更新產(chan)品(pin)(pin)的(de)(de)(de)時候，國(guo)(guo)內(nei)大(da)多數板(ban)(ban)(ban)(ban)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)器(qi)(qi)生(sheng)產(chan)廠家(jia)還屬于(yu)(yu)(yu)小(xiao)作坊式(shi)(shi)(shi)(shi)的(de)(de)(de)拼裝廠，沒(mei)有自(zi)己的(de)(de)(de)研發(fa)(fa)能力(li)(li)，產(chan)品(pin)(pin)類(lei)型(xing)、型(xing)號單一(yi)(yi)，生(sheng)產(chan)只有滿足于(yu)(yu)(yu)低層次的(de)(de)(de)模仿，使(shi)用的(de)(de)(de)技(ji)術(shu)(shu)還停留在(zai)(zai)國(guo)(guo)外(wai)產(chan)品(pin)(pin)六(liu)、七十年(nian)(nian)代(dai)的(de)(de)(de)水(shui)平(ping)。并(bing)(bing)且由(you)于(yu)(yu)(yu)國(guo)(guo)內(nei)模具工(gong)藝(yi)及材料(liao)水(shui)平(ping)的(de)(de)(de)限制(zhi)，產(chan)品(pin)(pin)質量(liang)和(he)(he)性能始終無(wu)法(fa)趕上國(guo)(guo)外(wai)板(ban)(ban)(ban)(ban)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)器(qi)(qi)，造成目前國(guo)(guo)內(nei)板(ban)(ban)(ban)(ban)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)器(qi)(qi)市(shi)場(chang)上國(guo)(guo)產(chan)板(ban)(ban)(ban)(ban)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)器(qi)(qi)始終無(wu)法(fa)抗衡(heng)國(guo)(guo)外(wai)產(chan)品(pin)(pin)的(de)(de)(de)局(ju)面。只有瑞典阿(a)法(fa)拉法(fa)公司(si)一(yi)(yi)家(jia)就占領了(le)中(zhong)國(guo)(guo)板(ban)(ban)(ban)(ban)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)器(qi)(qi)銷(xiao)售市(shi)場(chang)份額的(de)(de)(de)50%。釬焊(han)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)器(qi)(qi)定制(zhi)，推薦聯(lian)系江陰匯思拓機(ji)械。可(ke)拆式(shi)(shi)(shi)(shi)雙聯(lian)機(ji)組維修

換(huan)(huan)(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)行業狀況(kuang)：（概述）換(huan)(huan)(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)在(zai)(zai)石(shi)油、化工(gong)(gong)(gong)(gong)、輕(qing)工(gong)(gong)(gong)(gong)、制藥、能源等(deng)工(gong)(gong)(gong)(gong)業生產(chan)中，常常用作把(ba)低(di)溫流(liu)體(ti)加(jia)(jia)熱(re)(re)(re)(re)(re)(re)或者把(ba)高(gao)(gao)(gao)溫流(liu)體(ti)冷卻(que)，把(ba)液(ye)體(ti)汽(qi)(qi)化成(cheng)蒸汽(qi)(qi)或者把(ba)蒸汽(qi)(qi)冷凝成(cheng)液(ye)體(ti)。換(huan)(huan)(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)既可(ke)是(shi)一(yi)種單元(yuan)設備(bei)(bei)(bei)，如加(jia)(jia)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)、冷卻(que)器(qi)(qi)和凝汽(qi)(qi)器(qi)(qi)等(deng)；也可(ke)是(shi)某一(yi)工(gong)(gong)(gong)(gong)藝(yi)設備(bei)(bei)(bei)的(de)(de)(de)(de)組成(cheng)部分(fen)，如氨(an)合(he)成(cheng)塔內(nei)的(de)(de)(de)(de)換(huan)(huan)(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)。換(huan)(huan)(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)是(shi)化工(gong)(gong)(gong)(gong)生產(chan)中重要的(de)(de)(de)(de)單元(yuan)設備(bei)(bei)(bei)，根據統計(ji)，熱(re)(re)(re)(re)(re)(re)交換(huan)(huan)(huan)器(qi)(qi)的(de)(de)(de)(de)噸位約占整個工(gong)(gong)(gong)(gong)藝(yi)設備(bei)(bei)(bei)的(de)(de)(de)(de)20%有(you)(you)(you)的(de)(de)(de)(de)甚至高(gao)(gao)(gao)達30%，其重要性(xing)可(ke)想而知。管殼式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)是(shi)一(yi)個量(liang)大而品種繁多的(de)(de)(de)(de)產(chan)品，迫切(qie)需要新的(de)(de)(de)(de)耐磨損(sun)、耐腐(fu)蝕、**度材(cai)料。我國(guo)在(zai)(zai)發展(zhan)不(bu)銹鋼銅(tong)合(he)金復合(he)材(cai)料、鋁鎂合(he)金及碳化硅(gui)等(deng)非金屬(shu)材(cai)料等(deng)方(fang)面(mian)(mian)都有(you)(you)(you)不(bu)同程度的(de)(de)(de)(de)進(jin)(jin)展(zhan)，其中尤以(yi)鈦(tai)(tai)(tai)材(cai)發展(zhan)較(jiao)快。鈦(tai)(tai)(tai)對海水、氯堿、醋酸等(deng)有(you)(you)(you)較(jiao)好的(de)(de)(de)(de)抗腐(fu)蝕能力，如再強(qiang)(qiang)化傳(chuan)熱(re)(re)(re)(re)(re)(re)，效(xiao)果將更好，一(yi)些制造單位已較(jiao)好的(de)(de)(de)(de)掌握(wo)了(le)(le)鈦(tai)(tai)(tai)材(cai)的(de)(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)制造技術。對材(cai)料的(de)(de)(de)(de)噴涂，我國(guo)已從國(guo)外引進(jin)(jin)生產(chan)線。鋁鎂合(he)金具有(you)(you)(you)較(jiao)高(gao)(gao)(gao)的(de)(de)(de)(de)抗腐(fu)蝕性(xing)和導熱(re)(re)(re)(re)(re)(re)性(xing)，價格比鈦(tai)(tai)(tai)材(cai)便宜，應予注意。國(guo)內(nei)在(zai)(zai)節能增效(xiao)等(deng)方(fang)面(mian)(mian)改進(jin)(jin)換(huan)(huan)(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)性(xing)能，提高(gao)(gao)(gao)傳(chuan)熱(re)(re)(re)(re)(re)(re)效(xiao)率，減(jian)少傳(chuan)熱(re)(re)(re)(re)(re)(re)面(mian)(mian)積降低(di)壓降，提高(gao)(gao)(gao)裝置熱(re)(re)(re)(re)(re)(re)強(qiang)(qiang)度等(deng)方(fang)面(mian)(mian)的(de)(de)(de)(de)研究取得了(le)(le)成(cheng)績。換(huan)(huan)(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)的(de)(de)(de)(de)大量(liang)使用有(you)(you)(you)效(xiao)的(de)(de)(de)(de)提高(gao)(gao)(gao)了(le)(le)能源的(de)(de)(de)(de)利用率，使企業成(cheng)本降低(di)，效(xiao)益提高(gao)(gao)(gao)。吉林換(huan)(huan)(huan)熱(re)(re)(re)(re)(re)(re)機組源頭廠家釬焊板式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)廠家，推薦江陰匯思拓機械(xie)。

我(wo)們(men)在(zai)了(le)(le)解(jie)了(le)(le)板(ban)(ban)(ban)式換(huan)(huan)熱器安裝(zhuang)的(de)(de)(de)正確步驟，相應的(de)(de)(de)我(wo)們(men)也應該對其拆(chai)卸(xie)過程有所了(le)(le)解(jie)。1、板(ban)(ban)(ban)式換(huan)(huan)熱器拆(chai)卸(xie)前(qian)，首先測量(liang)板(ban)(ban)(ban)束(shu)的(de)(de)(de)壓(ya)緊(jin)(jin)長(chang)度(du)(du)(du)尺(chi)寸(cun)，做好(hao)(hao)(hao)記(ji)錄（重裝(zhuang)時應按此尺(chi)寸(cun)）。2、拆(chai)下夾緊(jin)(jin)螺栓(shuan)和全(quan)部換(huan)(huan)熱片(pian)(pian)(pian)(pian)(pian)。3、取下各板(ban)(ban)(ban)片(pian)(pian)(pian)(pian)(pian)上(shang)的(de)(de)(de)密(mi)封(feng)(feng)墊片(pian)(pian)(pian)(pian)(pian)，為防止用(yong)螺絲(si)刀刺破(po)板(ban)(ban)(ban)片(pian)(pian)(pian)(pian)(pian)，可(ke)采取液氮急冷(leng)法(fa)，使橡膠板(ban)(ban)(ban)條急冷(leng)變形(xing)，然(ran)后撕下。4、清理密(mi)封(feng)(feng)槽(cao)內(nei)的(de)(de)(de)殘余粘(zhan)結劑(ji)，清洗(xi)板(ban)(ban)(ban)片(pian)(pian)(pian)(pian)(pian)上(shang)的(de)(de)(de)污垢(gou)。5、用(yong)燈光或(huo)(huo)滲透法(fa)檢查(cha)傳熱板(ban)(ban)(ban)片(pian)(pian)(pian)(pian)(pian)有無裂紋或(huo)(huo)穿(chuan)孔(kong)，檢查(cha)板(ban)(ban)(ban)片(pian)(pian)(pian)(pian)(pian)上(shang)是否有凹坑或(huo)(huo)變形(xing)。6、修復或(huo)(huo)更(geng)換(huan)(huan)損壞的(de)(de)(de)板(ban)(ban)(ban)片(pian)(pian)(pian)(pian)(pian)。7、重新(xin)組(zu)裝(zhuang)。組(zu)裝(zhuang)前(qian)首先清洗(xi)密(mi)封(feng)(feng)槽(cao)，并用(yong)401號(hao)粘(zhan)結劑(ji)，水(shui)平位(wei)置粘(zhan)好(hao)(hao)(hao)密(mi)封(feng)(feng)條。8、粘(zhan)好(hao)(hao)(hao)密(mi)封(feng)(feng)條的(de)(de)(de)板(ban)(ban)(ban)片(pian)(pian)(pian)(pian)(pian)，每(mei)50片(pian)(pian)(pian)(pian)(pian)一(yi)組(zu)，用(yong)20~30mm慘(can)的(de)(de)(de)鋼板(ban)(ban)(ban)壓(ya)緊(jin)(jin)，在(zai)周(zhou)圍環(huan)境(jing)溫度(du)(du)(du)為30~35℃的(de)(de)(de)范圍內(nei)固化24h,可(ke)以掛片(pian)(pian)(pian)(pian)(pian)。9、掛片(pian)(pian)(pian)(pian)(pian)完(wan)畢，輕掛兩端(duan)壓(ya)蓋，并穿(chuan)固定螺栓(shuan)。10、用(yong)力(li)(li)矩(ju)扳手均(jun)勻(yun)地擰緊(jin)(jin)螺栓(shuan)。11、測量(liang)組(zu)裝(zhuang)壓(ya)緊(jin)(jin)后板(ban)(ban)(ban)片(pian)(pian)(pian)(pian)(pian)的(de)(de)(de)總長(chang)度(du)(du)(du)。12、裝(zhuang)進出(chu)口(kou)內(nei)襯套。13、整(zheng)體試壓(ya)。首先將板(ban)(ban)(ban)片(pian)(pian)(pian)(pian)(pian)一(yi)側(ce)(ce)的(de)(de)(de)流體通(tong)道的(de)(de)(de)入(ru)口(kou)管(guan)盲死，裝(zhuang)滿水(shui)，然(ran)后在(zai)板(ban)(ban)(ban)片(pian)(pian)(pian)(pian)(pian)另一(yi)側(ce)(ce)的(de)(de)(de)工作(zuo)介質(zhi)通(tong)道出(chu)口(kou)管(guan)上(shang)加(jia)一(yi)帶放氣短管(guan)的(de)(de)(de)盲板(ban)(ban)(ban)，在(zai)試壓(ya)側(ce)(ce)裝(zhuang)上(shang)壓(ya)力(li)(li)表。充滿水(shui)后用(yong)手壓(ya)泵加(jia)壓(ya)，為操作(zuo)壓(ya)力(li)(li)的(de)(de)(de)1.5倍，并保(bao)持30min,壓(ya)力(li)(li)無下降(jiang)即(ji)可(ke)連接外管(guan)。

由于(yu)板(ban)式(shi)換(huan)熱(re)器(qi)的(de)密封周邊較長(chang)，板(ban)片(pian)(pian)又較薄，在使(shi)用(yong)過(guo)程(cheng)中可能會出(chu)現(xian)滲漏(lou)(lou)現(xian)象(xiang)。滲漏(lou)(lou)現(xian)象(xiang)可分為(wei)內(nei)(nei)漏(lou)(lou)和外漏(lou)(lou)兩(liang)種(zhong)(zhong)情況.1、板(ban)式(shi)換(huan)熱(re)器(qi)的(de)外漏(lou)(lou)：這(zhe)(zhe)里是(shi)指板(ban)式(shi)換(huan)熱(re)設(she)(she)備(bei)內(nei)(nei)的(de)介質向(xiang)(xiang)外部(bu)空間(jian)的(de)滲漏(lou)(lou)。這(zhe)(zhe)種(zhong)(zhong)滲漏(lou)(lou)現(xian)象(xiang)一(yi)(yi)般(ban)容(rong)易發(fa)現(xian)。引起這(zhe)(zhe)種(zhong)(zhong)滲漏(lou)(lou)的(de)主(zhu)要(yao)(yao)原(yuan)因(yin)是(shi)墊片(pian)(pian)老化、被(bei)腐蝕或(huo)板(ban)片(pian)(pian)變形。當(dang)發(fa)生這(zhe)(zhe)種(zhong)(zhong)滲漏(lou)(lou)時(shi)，應在滲漏(lou)(lou)板(ban)片(pian)(pian)部(bu)分做標記(ji)，然后(hou)拆開設(she)(she)備(bei)將損壞(huai)的(de)板(ban)片(pian)(pian)取(qu)出(chu)更(geng)換(huan)新的(de)板(ban)片(pian)(pian)。2、板(ban)式(shi)換(huan)熱(re)器(qi)的(de)內(nei)(nei)漏(lou)(lou)：這(zhe)(zhe)是(shi)指換(huan)熱(re)設(she)(she)備(bei)內(nei)(nei)的(de)兩(liang)種(zhong)(zhong)介質由于(yu)某種(zhong)(zhong)原(yuan)因(yin)造成(cheng)高壓側介質向(xiang)(xiang)低(di)壓側滲漏(lou)(lou)。這(zhe)(zhe)種(zhong)(zhong)滲漏(lou)(lou)現(xian)象(xiang)一(yi)(yi)般(ban)不(bu)易及時(shi)發(fa)現(xian)。引起這(zhe)(zhe)種(zhong)(zhong)滲漏(lou)(lou)的(de)主(zhu)要(yao)(yao)原(yuan)因(yin)是(shi)板(ban)片(pian)(pian)穿(chuan)孔、裂紋和被(bei)腐蝕。發(fa)現(xian)這(zhe)(zhe)種(zhong)(zhong)滲漏(lou)(lou)的(de)方法(fa)是(shi)要(yao)(yao)經常(chang)對低(di)壓側的(de)介質進行化驗，從其組分的(de)變換(huan)中加以判斷(duan)。江(jiang)陰匯思拓機械專業生產制藥用(yong)板(ban)式(shi)換(huan)熱(re)器(qi)，歡迎聯(lian)系咨詢。

換(huan)(huan)熱(re)器(qi)安裝(zhuang)方(fang)法（五）：冷卻(que)水(shui)(shui)經常循環(huan)使用(yong)(yong)，由于(yu)水(shui)(shui)的(de)蒸發，使鹽類濃縮(suo)，產(chan)生(sheng)(sheng)沉積或污垢。又因(yin)水(shui)(shui)中(zhong)含有(you)腐(fu)蝕(shi)(shi)性(xing)(xing)(xing)溶解氣體(ti)及(ji)氯離子(zi)等(deng)引起設(she)(she)備(bei)腐(fu)蝕(shi)(shi)，腐(fu)蝕(shi)(shi)與(yu)結垢交替(ti)進行，激化了鋼材(cai)的(de)腐(fu)蝕(shi)(shi)。因(yin)此必須經過(guo)清(qing)洗來改(gai)善換(huan)(huan)熱(re)器(qi)的(de)性(xing)(xing)(xing)能(neng)。由于(yu)清(qing)洗的(de)困(kun)難程度是隨(sui)著垢層厚(hou)度或沉積的(de)增加而(er)迅速(su)增大的(de)，所以(yi)清(qing)洗間隔時間不宜(yi)過(guo)長，應根據生(sheng)(sheng)產(chan)裝(zhuang)置的(de)特點，換(huan)(huan)熱(re)介質的(de)性(xing)(xing)(xing)質，腐(fu)蝕(shi)(shi)速(su)度及(ji)運行周期(qi)等(deng)情(qing)況定期(qi)進行檢查，修理及(ji)清(qing)洗。換(huan)(huan)熱(re)器(qi)既(ji)可是一種單獨的(de)設(she)(she)備(bei)，如(ru)加熱(re)器(qi)、冷卻(que)器(qi)和(he)凝汽(qi)器(qi)等(deng)；也可是某一工藝(yi)(yi)設(she)(she)備(bei)的(de)組成(cheng)(cheng)部分，如(ru)氨(an)合成(cheng)(cheng)塔內(nei)的(de)熱(re)交換(huan)(huan)器(qi)。由于(yu)制(zhi)造(zao)工藝(yi)(yi)和(he)科(ke)學水(shui)(shui)平(ping)的(de)限(xian)制(zhi)，早期(qi)的(de)換(huan)(huan)熱(re)器(qi)只能(neng)采用(yong)(yong)簡單的(de)結構，而(er)且傳(chuan)熱(re)面(mian)積小、體(ti)積大和(he)笨重，如(ru)蛇管式(shi)換(huan)(huan)熱(re)器(qi)等(deng)。隨(sui)著制(zhi)造(zao)工藝(yi)(yi)的(de)發展，逐步形成(cheng)(cheng)一種管殼式(shi)換(huan)(huan)熱(re)器(qi)，它(ta)不*單位體(ti)積具有(you)較(jiao)大的(de)傳(chuan)熱(re)面(mian)積，而(er)且傳(chuan)熱(re)效(xiao)果也較(jiao)好，長期(qi)以(yi)來在工業生(sheng)(sheng)產(chan)中(zhong)成(cheng)(cheng)為一種典型的(de)換(huan)(huan)熱(re)器(qi)。耐(nai)高(gao)溫換(huan)(huan)熱(re)器(qi)廠家，推薦(jian)江(jiang)陰(yin)匯(hui)思拓機械(xie)。徐州焊(han)接式(shi)雙聯機組

江陰匯(hui)思拓機械專業生產食品級換熱器(qi)，歡迎(ying)聯(lian)系(xi)咨詢(xun)。可拆式雙聯(lian)機組維修

換熱(re)器的(de)(de)清(qing)洗（二）：在工(gong)(gong)業生(sheng)產(chan)(chan)(chan)的(de)(de)過程(cheng)中，有的(de)(de)時候會因為(wei)操(cao)作(zuo)不當引起的(de)(de)突**況(kuang)造成個(ge)別設(she)備(bei)或(huo)者局部管道(dao)(dao)線路結(jie)垢、堵塞，影(ying)響生(sheng)產(chan)(chan)(chan)的(de)(de)正(zheng)常(chang)運(yun)行(xing)。對于這時的(de)(de)情況(kuang)，主要是快速的(de)(de)污垢，保證生(sheng)產(chan)(chan)(chan)裝置(zhi)可以正(zheng)常(chang)的(de)(de)運(yun)轉，恢(hui)(hui)復正(zheng)常(chang)生(sheng)產(chan)(chan)(chan)狀態(tai)。恢(hui)(hui)復裝置(zhi)生(sheng)產(chan)(chan)(chan)效(xiao)率(lv)。比如化工(gong)(gong)設(she)備(bei)結(jie)垢造成換熱(re)器等(deng)設(she)備(bei)傳遞(di)熱(re)量熱(re)系數減(jian)少，管道(dao)(dao)流(liu)通面積(ji)的(de)(de)減(jian)少或(huo)者流(liu)通阻力增大，使(shi)能(neng)、物等(deng)消耗增加(jia)，生(sheng)產(chan)(chan)(chan)效(xiao)率(lv)明顯(xian)下降。這時通過清(qing)洗除(chu)垢來恢(hui)(hui)復生(sheng)產(chan)(chan)(chan)設(she)備(bei)的(de)(de)生(sheng)產(chan)(chan)(chan)效(xiao)率(lv)。可拆式雙聯(lian)機組維(wei)修

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