国产精品视频一区二区三区无码,国产午夜精品无码,午夜天堂一区人妻,无遮挡色视频免费观看,中文字幕久热精品视频在线

近日，CSPPLAZA光(guang)熱(re)發電(dian)平臺(tai)會員單(dan)位——山東華寧電(dian)伴熱(re)科技有(you)限(xian)公司結合哈密熔鹽(yan)塔式50MW光(guang)熱(re)發電(dian)項目(mu)分享了(le)光(guang)熱(re)發電(dian)項目(mu)電(dian)伴熱(re)的選型原(yuan)則，具體如下(xia)：

哈密熔鹽塔式50MW光熱(re)(re)發電項(xiang)目的(de)熔鹽吸(xi)熱(re)(re)器系(xi)統由(you)東(dong)(dong)方鍋爐(lu)自主設計和供(gong)貨，其中(zhong)，電伴熱(re)(re)系(xi)統在吸(xi)熱(re)(re)器系(xi)統的(de)設備和管線(xian)中(zhong)得到廣泛應用。我們作為(wei)東(dong)(dong)方電氣的(de)供(gong)貨商，提(ti)供(gong)了優(you)質的(de)電伴熱(re)(re)產品，成功協助東(dong)(dong)方鍋爐(lu)順利完成50MW光熱(re)(re)發電項(xiang)目建(jian)設。

目(mu)前塔式熔鹽光熱技術(shu)已成(cheng)為光熱發電產業中的(de)(de)(de)主流技術(shu)之一，熔鹽同時作為吸熱、儲熱和傳熱工(gong)質。但是，熔鹽在物性.上存在凝(ning)固點較(jiao)高的(de)(de)(de)缺陷，當系(xi)統工(gong)作溫度接近(jin)或(huo)低于其(qi)凝(ning)固點時，內部(bu)流動熔鹽就(jiu)會(hui)發生結晶(jing)甚至凝(ning)固堵(du)塞現(xian)象，導致(zhi)設備損壞(huai)或(huo)系(xi)統停運(yun)。哈密項(xiang)目(mu)吸熱器系(xi)統的(de)(de)(de)工(gong)質熔點約為220°C的(de)(de)(de)二元熔鹽。

根據塔式光(guang)熱(re)(re)(re)(re)(re)(re)太陽能發(fa)電(dian)(dian)(dian)站設(she)計(ji)標準(zhun)，熔融鹽(yan)管(guan)(guan)道(dao)及(ji)(ji)換熱(re)(re)(re)(re)(re)(re)器應(ying)設(she)置電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)，電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)宜冗余配置。在(zai)吸熱(re)(re)(re)(re)(re)(re)器不能被陽光(guang)照(zhao)(zhao)射的(de)(de)(de)(de)(de)部位也(ye)應(ying)設(she)置電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)，電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)功率宜滿足(zu)預熱(re)(re)(re)(re)(re)(re)和(he)防凝(ning)要(yao)求(qiu)叫。在(zai)太陽能光(guang)熱(re)(re)(re)(re)(re)(re)發(fa)電(dian)(dian)(dian)系(xi)統中，熔鹽(yan)凝(ning)固點(dian)溫(wen)(wen)度(du)(du)(du)(du)(du)較高，而且系(xi)統運行溫(wen)(wen)度(du)(du)(du)(du)(du)也(ye)很高，電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)系(xi)統的(de)(de)(de)(de)(de)預熱(re)(re)(re)(re)(re)(re)溫(wen)(wen)度(du)(du)(du)(du)(du)必須達到(dao)260~300 C以上(shang)，并且要(yao)求(qiu)電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)系(xi)統可以在(zai)600°C以上(shang)的(de)(de)(de)(de)(de)使用(yong)溫(wen)(wen)度(du)(du)(du)(du)(du)下能夠長(chang)期穩(wen)定(ding)工作凹，因此，對(dui)電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)系(xi)統的(de)(de)(de)(de)(de)耐溫(wen)(wen)性(xing)(xing)能和(he)可靠(kao)性(xing)(xing)提(ti)出了嚴格要(yao)求(qiu)。吸熱(re)(re)(re)(re)(re)(re)器系(xi)統布置電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)的(de)(de)(de)(de)(de)部電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)系(xi)統的(de)(de)(de)(de)(de)選(xuan)型(xing)原則是等(deng)值熱(re)(re)(re)(re)(re)(re)量替代補償，即(ji)電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)帶(dai)(dai)(dai)的(de)(de)(de)(de)(de)發(fa)熱(re)(re)(re)(re)(re)(re)量滿足(zu)維持特定(ding)溫(wen)(wen)度(du)(du)(du)(du)(du)下設(she)備(bei)(bei)和(he)管(guan)(guan)線(xian)(xian)的(de)(de)(de)(de)(de)熱(re)(re)(re)(re)(re)(re)損(sun)失(shi)。根據設(she)備(bei)(bei)及(ji)(ji)管(guan)(guan)線(xian)(xian)的(de)(de)(de)(de)(de)操作溫(wen)(wen)度(du)(du)(du)(du)(du)和(he)設(she)計(ji)溫(wen)(wen)度(du)(du)(du)(du)(du)，參照(zhao)(zhao)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)帶(dai)(dai)(dai)的(de)(de)(de)(de)(de)維持溫(wen)(wen)度(du)(du)(du)(du)(du)及(ji)(ji)最(zui)高暴露(lu)溫(wen)(wen)度(du)(du)(du)(du)(du)來選(xuan)擇(ze)合適的(de)(de)(de)(de)(de)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)帶(dai)(dai)(dai)，功率宜為(wei)設(she)備(bei)(bei)及(ji)(ji)管(guan)(guan)線(xian)(xian)理論熱(re)(re)(re)(re)(re)(re)損(sun)失(shi)值的(de)(de)(de)(de)(de)1.2倍以上(shang)。選(xuan)型(xing)時，電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)補償的(de)(de)(de)(de)(de)熱(re)(re)(re)(re)(re)(re)量不小于設(she)備(bei)(bei)和(he)管(guan)(guan)線(xian)(xian)的(de)(de)(de)(de)(de)實際最(zui)大散熱(re)(re)(re)(re)(re)(re)量，并根據供電(dian)(dian)(dian)條件及(ji)(ji)電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)帶(dai)(dai)(dai)使用(yong)長(chang)度(du)(du)(du)(du)(du)等(deng)條件確定(ding)電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)帶(dai)(dai)(dai)的(de)(de)(de)(de)(de)選(xuan)型(xing)，確定(ding)電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)帶(dai)(dai)(dai)總長(chang)時需考慮管(guan)(guan)線(xian)(xian)附件.上(shang)的(de)(de)(de)(de)(de)閥門(men)及(ji)(ji)儀(yi)表等(deng)，并根據使用(yong)場所決定(ding)電(dian)(dian)(dian)伴(ban)(ban)熱(re)(re)(re)(re)(re)(re)帶(dai)(dai)(dai)結構。

熔鹽管(guan)道通常(chang)根據(ju)(ju)環境溫(wen)(wen)度(du)、介質、管(guan)徑、長度(du)、保溫(wen)(wen)材質及厚度(du)和管(guan)線附件等計算管(guan)線的(de)熱(re)損失，確(que)定電(dian)伴熱(re)帶輸出功(gong)率及電(dian)伴熱(re)帶型號。罐體根據(ju)(ju)保溫(wen)(wen)層材料的(de)厚度(du)和介質所(suo)需要(yao)維持的(de)溫(wen)(wen)度(du)，求得單位面積散熱(re)量(liang)后根據(ju)(ju)總散熱(re)量(liang)進行電(dian)伴熱(re)帶選型。

哈密光熱(re)(re)項目中(zhong)，電(dian)(dian)(dian)加熱(re)(re)系(xi)統(tong)的(de)(de)配(pei)置需滿足吸熱(re)(re)器系(xi)統(tong)不工作時(shi)(shi)的(de)(de)時(shi)(shi)間，長時(shi)(shi)間存留熔鹽的(de)(de)管(guan)(guan)道(dao)和(he)罐體(ti)有(you)兩套獨立(li)的(de)(de)加熱(re)(re)系(xi)統(tong)。電(dian)(dian)(dian)加熱(re)(re)系(xi)統(tong)應(ying)滿足系(xi)統(tong)運行時(shi)(shi)和(he)啟動(dong)前(qian)(qian)的(de)(de)溫(wen)(wen)度(du)(du)需求。當(dang)吸熱(re)(re)器系(xi)統(tong)運行時(shi)(shi)，熔鹽管(guan)(guan)道(dao)及(ji)設備內充滿熔鹽，此時(shi)(shi)電(dian)(dian)(dian)加熱(re)(re)系(xi)統(tong)應(ying)維持熔鹽管(guan)(guan)道(dao)、閥(fa)門(men)和(he)罐體(ti)的(de)(de)溫(wen)(wen)度(du)(du)在(zai)290°C以上。系(xi)統(tong)啟動(dong)前(qian)(qian)，電(dian)(dian)(dian)伴(ban)熱(re)(re)系(xi)統(tong)應(ying)滿足使空熔鹽管(guan)(guan)道(dao)、閥(fa)門(men)和(he)質(zhi)及(ji)厚度(du)(du)和(he)管(guan)(guan)線附件等計算(suan)管(guan)(guan)線的(de)(de)熱(re)(re)損(sun)失，確定(ding)電(dian)(dian)(dian)伴(ban)熱(re)(re)帶(dai)(dai)輸出功率及(ji)電(dian)(dian)(dian)伴(ban)熱(re)(re)帶(dai)(dai)型號。罐體(ti)根據保溫(wen)(wen)層(ceng)材料的(de)(de)厚度(du)(du)和(he)介質(zhi)所(suo)需要維持的(de)(de)溫(wen)(wen)度(du)(du)，求得單(dan)位面積散熱(re)(re)量后根據總散熱(re)(re)量進行電(dian)(dian)(dian)伴(ban)熱(re)(re)帶(dai)(dai)選(xuan)型。

哈密光熱(re)(re)(re)項目中，電加熱(re)(re)(re)系(xi)統(tong)(tong)(tong)(tong)的(de)配(pei)置需滿足吸(xi)熱(re)(re)(re)器(qi)(qi)系(xi)統(tong)(tong)(tong)(tong)不(bu)工作時(shi)的(de)時(shi)間(jian)，長時(shi)間(jian)存留熔鹽(yan)(yan)的(de)管(guan)道(dao)和(he)(he)罐(guan)體有兩套獨立(li)的(de)加熱(re)(re)(re)系(xi)統(tong)(tong)(tong)(tong)。電加熱(re)(re)(re)系(xi)統(tong)(tong)(tong)(tong)應滿足系(xi)統(tong)(tong)(tong)(tong)運行(xing)時(shi)和(he)(he)啟動(dong)前的(de)溫(wen)度需求。當吸(xi)熱(re)(re)(re)器(qi)(qi)系(xi)統(tong)(tong)(tong)(tong)運行(xing)時(shi)，熔鹽(yan)(yan)管(guan)道(dao)及設備內充滿熔鹽(yan)(yan)，此時(shi)電加熱(re)(re)(re)系(xi)統(tong)(tong)(tong)(tong)應維持(chi)熔鹽(yan)(yan)管(guan)道(dao)、閥門和(he)(he)罐(guan)體的(de)溫(wen)度在290°C以上(shang)。系(xi)統(tong)(tong)(tong)(tong)啟動(dong)前，電伴熱(re)(re)(re)系(xi)統(tong)(tong)(tong)(tong)應滿足使(shi)空熔鹽(yan)(yan)管(guan)道(dao)、閥門和(he)(he)罐(guan)體在24 h內從環境(jing)溫(wen)度預熱(re)(re)(re)至290°C。