按照換熱器機組的(de)(de)工(gong)藝用途來(lai)分(fen)的(de)(de)話主要(yao)就是(shi)分(fen)為(wei)(wei):板(ban)(ban)(ban)式(shi)(shi)(shi)(shi)(shi)加(jia)熱(re)器(qi)(qi)、板(ban)(ban)(ban)式(shi)(shi)(shi)(shi)(shi)冷卻器(qi)(qi)、板(ban)(ban)(ban)式(shi)(shi)(shi)(shi)(shi)冷凝器(qi)(qi)、板(ban)(ban)(ban)式(shi)(shi)(shi)(shi)(shi)預熱(re)器(qi)(qi)。根據(ju)組(zu)合流(liu)程(cheng)來(lai)看是(shi)分(fen)為(wei)(wei):單程(cheng)板(ban)(ban)(ban)式(shi)(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)和多(duo)程(cheng)板(ban)(ban)(ban)式(shi)(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)。當然了(le)我(wo)們還可以(yi)根據(ju)兩種介質(zhi)的(de)(de)流(liu)動方向可以(yi)分(fen)為(wei)(wei):順流(liu)板(ban)(ban)(ban)式(shi)(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)、逆流(liu)板(ban)(ban)(ban)式(shi)(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)、交(jiao)叉流(liu)板(ban)(ban)(ban)式(shi)(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)。如果按照流(liu)道(dao)的(de)(de)堿洗的(de)(de)大小來(lai)分(fen)的(de)(de)話就可以(yi)分(fen)為(wei)(wei)常規間隙板(ban)(ban)(ban)式(shi)(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)和寬間隙板(ban)(ban)(ban)式(shi)(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)了(le)。
高效換熱器機組本身技(ji)術指標(biao)上存在過(guo)流孔徑,進(jin)(jin)水(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)質(zhi)(zhi)(zhi)請求,經過(guo)比照實踐進(jin)(jin)水(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)質(zhi)(zhi)(zhi)指標(biao)(冷水(shui)(shui)(shui)(shui)進(jin)(jin)水(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)質(zhi)(zhi)(zhi),熱(re)水(shui)(shui)(shui)(shui)進(jin)(jin)水(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)質(zhi)(zhi)(zhi)),需求留意一(yi)下(xia)幾點:1、進(jin)(jin)水(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)質(zhi)(zhi)(zhi)酸(suan)堿性(xing)(包(bao)括冷水(shui)(shui)(shui)(shui)和(he)用于換(huan)熱(re)的(de)熱(re)水(shui)(shui)(shui)(shui)),假(jia)如超出板式換(huan)熱(re)器(qi)進(jin)(jin)水(shui)(shui)(shui)(shui)技(ji)術指標(biao),需求加裝(zhuang)(zhuang)PH調理安裝(zhuang)(zhuang),避(bi)免過(guo)酸(suan)腐蝕或(huo)者過(guo)堿構造梗塞;同(tong)事(shi)堿性(xing)也會腐蝕換(huan)熱(re)器(qi)密封橡(xiang)膠圈(quan)招(zhao)致走漏(lou)呈現.2、假(jia)如進(jin)(jin)水(shui)(shui)(shui)(shui)濁(zhuo)度超標(biao)或(huo)進(jin)(jin)水(shui)(shui)(shui)(shui)中雜質(zhi)(zhi)(zhi)過(guo)多(duo)過(guo)大(da)(包(bao)括冷水(shui)(shui)(shui)(shui)和(he)用于換(huan)熱(re)的(de)熱(re)水(shui)(shui)(shui)(shui)),倡(chang)議(yi)加裝(zhuang)(zhuang)自清(qing)洗過(guo)濾(lv)器(qi),避(bi)免板式換(huan)熱(re)器(qi)梗塞,假(jia)如影(ying)響(xiang)不是很大(da),只(zhi)需在進(jin)(jin)水(shui)(shui)(shui)(shui)端(duan)加裝(zhuang)(zhuang)Y型(xing)過(guo)濾(lv)器(qi)即可.3、閉路循環要(yao)思索(suo)增加加藥安裝(zhuang)(zhuang),如投加緩蝕阻垢(gou)劑避(bi)免結垢(gou)
在初級除氧階段,凝結水經過高壓噴嘴構成發散的錐形水膜向下進入初級除氧區,水膜在這個區域內與上行的過熱蒸汽充沛觸摸,迅速將水加熱到除氧器高效換熱器機組壓力下的飽和溫度,大部分氧氣從水中析出,在每個噴嘴的周圍設有四個排氣口,以及時排出析出的氧氣,經過初步除氧的水落入水空間流向出水口;加熱蒸汽經過排管從水下送入,與水混合加熱,同時對換熱器機組價格水(shui)流進行擾動,并將水(shui)中(zhong)的溶解氧(yang)及(ji)其它不凝結(jie)(jie)氣體從水(shui)中(zhong)帶(dai)出水(shui)面(mian),達到對凝結(jie)(jie)水(shui)進行深度除氧(yang)的意圖(tu)。
內置式除氧器與火電站的鍋爐相配套使用的除氧器,特別涉及一種內置式除氧器。目前使用的除氧器均包括一除氧裝置和一給水箱,換熱器機組價格裝置安裝在給水箱的頂部,兩者連接處的給水箱頂壁須開設直徑很大的孔(φ1000-φ2000毫米),而除氧裝置的重量通常有5-20噸,因而造成兩者連接處的局部應力很大,一般應力集中系數為3.5-6.0,在這種部位經常會出現裂縫,造成人身傷亡和財產損失,嚴重影響安全運行;另外,高效換熱器機組裝置本(ben)身比較高(1.5-4米),將其安裝在給水箱(xiang)的(de)頂(ding)部,勢(shi)必增(zeng)(zeng)加廠房高度,進而(er)增(zeng)(zeng)加工程股資。
無頭除氧器是一臺典型的圓筒形臥式容器,內置噴頭、蒸汽分配裝置,貯存需求除氧的凝結水和排出已除氧的凝結水到鍋爐給水泵。高效換熱器機組采用滑壓運行方式,四段抽汽和輔汽兩路汽源,在四抽管路上只設防止汽輪機進水的截止閥和逆止門,不設調節閥,為滑壓運行;而輔汽供汽管路上設壓力調節閥,用于除氧器定壓運行時的壓力調節。換熱器機組汽源(yuan):除氧器的加熱蒸(zheng)汽有兩路汽源(yuan),分別為四(si)抽和輔汽.
三、組裝板式換熱器機組價格時板片和密封墊應保持干凈,板片擺放應整齊,并遵照產品組裝形式圖組裝板片。壓緊時螺柱應對角壓緊,受力應均勻,防止個別螺柱過緊損壞螺柱和板片。四、已經老化的密封墊應更換。換熱器機組價格與密封墊有脫(tuo)落現(xian)象時(shi),用(yong)稀料洗(xi)(xi)去板片密封槽(cao)粘(zhan)接劑(ji),清洗(xi)(xi)干凈后,用(yong)適合的(de)粘(zhan)接劑(ji)涂在密封槽(cao)中(zhong),重(zhong)新(xin)粘(zhan)接牢固。五、在冬季(ji)停(ting)止運行(xing)板式換(huan)熱器時(shi),應將設備內部(bu)的(de)介質放掉,防止凍(dong)壞設備,也可(ke)采用(yong)其它防凍(dong)措施。