洛陽耐特雙套管
紊(wen)流雙(shuang)套(tao)管(guan)濃相正壓氣力(li)輸(shu)送系統是1980年(nian)代(dai)后期在(zai)國外發(fa)展起來的(de)一(yi)種先進(jin)(jin)的(de)氣力(li)輸(shu)送技(ji)術(shu)，我國從1990年(nian)代(dai)中期開始(shi)引(yin)進(jin)(jin)，并于1990年(nian)代(dai)后期實(shi)現國產化。
如(ru)前(qian)所(suo)述(shu)，1990年代前(qian)我國大部份電廠的(de)氣力(li)除(chu)灰系統(tong)(tong)均為稀相氣力(li)輸(shu)送(song)系統(tong)(tong)，由于該系統(tong)(tong)要求輸(shu)送(song)速(su)度高(gao)(gao)（大于物(wu)料的(de)懸(xuan)浮速(su)度），加快了對系統(tong)(tong)設(she)備(bei)、管道(dao)及管件的(de)磨損，維修工作(zuo)量大，運(yun)(yun)行(xing)可靠性差、能耗大、運(yun)(yun)輸(shu)效率(lv)低(di)。同時(shi)由于該系統(tong)(tong)在一根輸(shu)送(song)管道(dao)上不允許并(bing)接多(duo)臺發送(song)器同時(shi)運(yun)(yun)行(xing)，因此系統(tong)(tong)中(zhong)設(she)置的(de)管道(dao)數(shu)量多(duo)、閥門多(duo)，系統(tong)(tong)復雜(za)，系統(tong)(tong)的(de)初(chu)投(tou)資也(ye)高(gao)(gao)，特別推薦紊流雙(shuang)套管
隨著(zhu)電廠(chang)機組容量的(de)(de)增(zeng)(zeng)大(da)和輸(shu)(shu)(shu)(shu)送(song)(song)距離的(de)(de)增(zeng)(zeng)加(jia)，多種型式的(de)(de)濃相(xiang)(xiang)氣(qi)力(li)(li)輸(shu)(shu)(shu)(shu)送(song)(song)系統相(xiang)(xiang)繼用于電廠(chang)的(de)(de)除灰(hui)系統。但采用濃相(xiang)(xiang)氣(qi)力(li)(li)輸(shu)(shu)(shu)(shu)送(song)(song)系統后，也(ye)帶來新的(de)(de)問(wen)題(ti)(ti)。首先(xian)，輸(shu)(shu)(shu)(shu)灰(hui)時(shi)(shi)降低其輸(shu)(shu)(shu)(shu)送(song)(song)速度，提高灰(hui)氣(qi)比(bi)，將會導致在(zai)(zai)輸(shu)(shu)(shu)(shu)送(song)(song)過程中堵(du)管，威(wei)脅系統運(yun)行(xing)的(de)(de)安全，為此不(bu)得不(bu)在(zai)(zai)輸(shu)(shu)(shu)(shu)灰(hui)管沿線(xian)設置(zhi)吹(chui)堵(du)裝置(zhi)，但在(zai)(zai)運(yun)行(xing)中有時(shi)(shi)由(you)于吹(chui)堵(du)不(bu)及(ji)時(shi)(shi)，系統堵(du)管問(wen)題(ti)(ti)仍難于避(bi)免；其次，濃相(xiang)(xiang)氣(qi)力(li)(li)輸(shu)(shu)(shu)(shu)送(song)(song)系統往(wang)往(wang)要求(qiu)一根輸(shu)(shu)(shu)(shu)送(song)(song)管線(xian)上只能安裝1-2臺(tai)發(fa)送(song)(song)器，如安裝多臺(tai)發(fa)送(song)(song)器時(shi)(shi)，在(zai)(zai)同一時(shi)(shi)間內也(ye)只允(yun)許1或2臺(tai)發(fa)送(song)(song)器送(song)(song)料(liao)，稀相(xiang)(xiang)輸(shu)(shu)(shu)(shu)送(song)(song)系統中存在(zai)(zai)的(de)(de)輸(shu)(shu)(shu)(shu)送(song)(song)管線(xian)數量多、閥(fa)門多、系統復(fu)雜等諸(zhu)多問(wen)題(ti)(ti)仍未解決(jue)，特別推(tui)薦(jian)紊(wen)流雙套管
因此，如何解決在濃(nong)(nong)相(xiang)氣(qi)力輸(shu)(shu)(shu)送系統中(zhong)在一根管(guan)(guan)線(xian)上既能并聯多臺發送器同時工作，又(you)可在低速度、高(gao)灰(hui)氣(qi)比(bi)條件下保證不堵(du)管(guan)(guan)，提高(gao)系統運行(xing)的(de)(de)安(an)全(quan)性(xing)和經濟性(xing)，是(shi)當前(qian)在電(dian)廠推(tui)廣采用濃(nong)(nong)相(xiang)氣(qi)力輸(shu)(shu)(shu)灰(hui)系統大(da)(da)家所關注的(de)(de)問題(ti)正壓濃(nong)(nong)相(xiang)氣(qi)力輸(shu)(shu)(shu)送系統妥(tuo)善解決了這(zhe)一難題(ti)。該系統從輸(shu)(shu)(shu)送機理(li)上有別(bie)(bie)于常規的(de)(de)正壓氣(qi)力輸(shu)(shu)(shu)送系統，改懸浮輸(shu)(shu)(shu)送為靜壓輸(shu)(shu)(shu)送，利用輸(shu)(shu)(shu)送管(guan)(guan)道的(de)(de)自調節內旁通管(guan)(guan)實現穩態輸(shu)(shu)(shu)送，從而改變了常規正壓輸(shu)(shu)(shu)送低濃(nong)(nong)度、高(gao)流速、易磨(mo)(mo)損、易堵(du)管(guan)(guan)的(de)(de)工況，是(shi)解決輸(shu)(shu)(shu)送高(gao)磨(mo)(mo)損、大(da)(da)出力、濃(nong)(nong)相(xiang)輸(shu)(shu)(shu)送磨(mo)(mo)損性(xing)大(da)(da)的(de)(de)物料的(de)(de)理(li)想方案，代(dai)表(biao)了當今(jin)除灰(hui)技術的(de)(de)先進水平，特別(bie)(bie)推(tui)薦紊流雙套管(guan)(guan)
