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1、減溫減壓裝置用(yong)途
減(jian)(jian)(jian)(jian)(jian)(jian)溫(wen)(wen)減(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)裝(zhuang)(zhuang)置(zhi)是(shi)(shi)用來(lai)調節蒸(zheng)(zheng)汽(qi)(qi)壓(ya)(ya)力、溫(wen)(wen)度的(de)(de)重要(yao)(yao)(yao)裝(zhuang)(zhuang)置(zhi)，在(zai)火力發電(dian)廠(chang)(chang)中鍋(guo)爐(lu)產(chan)生(sheng)(sheng)過(guo)(guo)(guo)(guo)熱(re)(re)蒸(zheng)(zheng)汽(qi)(qi)，如果鍋(guo)爐(lu)不(bu)裝(zhuang)(zhuang)備減(jian)(jian)(jian)(jian)(jian)(jian)溫(wen)(wen)器，就無法將鍋(guo)爐(lu)出口蒸(zheng)(zheng)汽(qi)(qi)溫(wen)(wen)度控(kong)制(zhi)(zhi)在(zai)需(xu)要(yao)(yao)(yao)范圍內，會使(shi)(shi)鍋(guo)爐(lu)汽(qi)(qi)輪(lun)機等設備因超溫(wen)(wen)損壞或造(zao)成重大事故(gu)。同(tong)時，在(zai)化(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)、輕工(gong)(gong)(gong)(gong)(gong)(gong)(gong)、醫藥(yao)、食(shi)品加工(gong)(gong)(gong)(gong)(gong)(gong)(gong)等一切使(shi)(shi)用蒸(zheng)(zheng)汽(qi)(qi)的(de)(de)生(sheng)(sheng)產(chan)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝流程中，過(guo)(guo)(guo)(guo)熱(re)(re)蒸(zheng)(zheng)汽(qi)(qi)作(zuo)為(wei)機械能量(liang)的(de)(de)產(chan)生(sheng)(sheng)提(ti)供(gong)了(le)能源。而許多情況下，飽(bao)和(he)蒸(zheng)(zheng)汽(qi)(qi)是(shi)(shi)更適(shi)合使(shi)(shi)用的(de)(de)，由(you)于(yu)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝及設備的(de)(de)原因，對(dui)壓(ya)(ya)力、溫(wen)(wen)度的(de)(de)控(kong)制(zhi)(zhi)也(ye)是(shi)(shi)必不(bu)可少的(de)(de)，通過(guo)(guo)(guo)(guo)減(jian)(jian)(jian)(jian)(jian)(jian)溫(wen)(wen)減(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)裝(zhuang)(zhuang)置(zhi)可以(yi)得(de)到(dao)合適(shi)的(de)(de)動(dong)力蒸(zheng)(zheng)汽(qi)(qi)。例如：當換熱(re)(re)器用于(yu)制(zhi)(zhi)程操作(zuo)時，使(shi)(shi)用過(guo)(guo)(guo)(guo)熱(re)(re)蒸(zheng)(zheng)汽(qi)(qi)由(you)于(yu)低的(de)(de)傳熱(re)(re)系(xi)數而降低效率，使(shi)(shi)用飽(bao)和(he)蒸(zheng)(zheng)汽(qi)(qi)更加適(shi)合。另外當高(gao)壓(ya)(ya)的(de)(de)干飽(bao)和(he)蒸(zheng)(zheng)汽(qi)(qi)減(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)至低壓(ya)(ya)時，在(zai)下游出口會產(chan)生(sheng)(sheng)過(guo)(guo)(guo)(guo)熱(re)(re)度。這(zhe)樣(yang)都需(xu)要(yao)(yao)(yao)將過(guo)(guo)(guo)(guo)熱(re)(re)的(de)(de)蒸(zheng)(zheng)汽(qi)(qi)降溫(wen)(wen)至所(suo)需(xu)的(de)(de)接近飽(bao)和(he)的(de)(de)溫(wen)(wen)度，這(zhe)就需(xu)要(yao)(yao)(yao)減(jian)(jian)(jian)(jian)(jian)(jian)溫(wen)(wen)器。在(zai)很多情況下需(xu)要(yao)(yao)(yao)對(dui)高(gao)壓(ya)(ya)過(guo)(guo)(guo)(guo)熱(re)(re)的(de)(de)蒸(zheng)(zheng)汽(qi)(qi)同(tong)時進行減(jian)(jian)(jian)(jian)(jian)(jian)溫(wen)(wen)和(he)減(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)。減(jian)(jian)(jian)(jian)(jian)(jian)溫(wen)(wen)減(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)裝(zhuang)(zhuang)置(zhi)是(shi)(shi)節能環保(bao)產(chan)品。減(jian)(jian)(jian)(jian)(jian)(jian)溫(wen)(wen)減(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)裝(zhuang)(zhuang)置(zhi)配上相(xiang)應的(de)(de)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)業(ye)(ye)(ye)自動(dong)化(hua)(hua)儀表（即熱(re)(re)控(kong)柜(ju)），可對(dui)電(dian)站(zhan)或工(gong)(gong)(gong)(gong)(gong)(gong)(gong)業(ye)(ye)(ye)鍋(guo)爐(lu)及熱(re)(re)電(dian)廠(chang)(chang)等處輸送(song)來(lai)的(de)(de)一次（新(xin)）蒸(zheng)(zheng)汽(qi)(qi)壓(ya)(ya)力P1、溫(wen)(wen)度T1進行減(jian)(jian)(jian)(jian)(jian)(jian)溫(wen)(wen)減(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)，使(shi)(shi)其(qi)二(er)次蒸(zheng)(zheng)汽(qi)(qi)壓(ya)(ya)力P2、溫(wen)(wen)度T2達到(dao)生(sheng)(sheng)產(chan)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝所(suo)需(xu)的(de)(de)要(yao)(yao)(yao)求。廣泛用于(yu)熱(re)(re)電(dian)廠(chang)(chang)、集中供(gong)熱(re)(re)、食(shi)品工(gong)(gong)(gong)(gong)(gong)(gong)(gong)業(ye)(ye)(ye)、石(shi)化(hua)(hua)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)業(ye)(ye)(ye)、紡織工(gong)(gong)(gong)(gong)(gong)(gong)(gong)業(ye)(ye)(ye)、橡膠工(gong)(gong)(gong)(gong)(gong)(gong)(gong)業(ye)(ye)(ye)、造(zao)紙(zhi)和(he)紙(zhi)漿工(gong)(gong)(gong)(gong)(gong)(gong)(gong)業(ye)(ye)(ye)、煙草工(gong)(gong)(gong)(gong)(gong)(gong)(gong)業(ye)(ye)(ye)、制(zhi)(zhi)藥(yao)等其(qi)它很多行業(ye)(ye)(ye)。為(wei)了(le)滿足不(bu)同(tong)設備工(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝要(yao)(yao)(yao)求，我公司(si)提(ti)供(gong)不(bu)同(tong)類型的(de)(de)減(jian)(jian)(jian)(jian)(jian)(jian)溫(wen)(wen)減(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)（減(jian)(jian)(jian)(jian)(jian)(jian)溫(wen)(wen)、減(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)）器，并實現全套智能化(hua)(hua)自動(dong)控(kong)制(zhi)(zhi)或DCS系(xi)統(tong)聯網。
減(jian)(jian)(jian)溫減(jian)(jian)(jian)壓(ya)裝(zhuang)置根據(ju)一次(ci)（新）蒸汽壓(ya)力P1、溫度T1、可分為(wei)高(gao)溫高(gao)壓(ya)減(jian)(jian)(jian)溫減(jian)(jian)(jian)壓(ya)裝(zhuang)置、次(ci)高(gao)壓(ya)減(jian)(jian)(jian)溫減(jian)(jian)(jian)壓(ya)裝(zhuang)置、中溫中壓(ya)減(jian)(jian)(jian)溫減(jian)(jian)(jian)壓(ya)裝(zhuang)置；減(jian)(jian)(jian)溫減(jian)(jian)(jian)壓(ya)裝(zhuang)置根據(ju)使用情況又可分為(wei)減(jian)(jian)(jian)溫裝(zhuang)置、減(jian)(jian)(jian)壓(ya)裝(zhuang)置、減(jian)(jian)(jian)溫減(jian)(jian)(jian)壓(ya)裝(zhuang)置，
減(jian)(jian)(jian)(jian)溫(wen)(wen)(wen)減(jian)(jian)(jian)(jian)壓裝(zhuang)置(zhi)一(yi)般(ban)根據一(yi)次(ci)蒸(zheng)(zheng)汽(qi)(qi)（新蒸(zheng)(zheng)汽(qi)(qi)）和二次(ci)蒸(zheng)(zheng)汽(qi)(qi)（即減(jian)(jian)(jian)(jian)溫(wen)(wen)(wen)減(jian)(jian)(jian)(jian)壓后的(de)蒸(zheng)(zheng)汽(qi)(qi)）的(de)參數及用量(liang)進行(xing)選擇，經(jing)常(chang)(chang)運(yun)(yun)行(xing)的(de)減(jian)(jian)(jian)(jian)溫(wen)(wen)(wen)減(jian)(jian)(jian)(jian)壓裝(zhuang)置(zhi)一(yi)般(ban)設置(zhi)兩套(tao)(tao)，其中一(yi)套(tao)(tao)作為備(bei)用；不(bu)經(jing)常(chang)(chang)運(yun)(yun)行(xing)的(de)減(jian)(jian)(jian)(jian)溫(wen)(wen)(wen)減(jian)(jian)(jian)(jian)壓裝(zhuang)置(zhi)一(yi)般(ban)不(bu)考慮備(bei)用；備(bei)用的(de)減(jian)(jian)(jian)(jian)溫(wen)(wen)(wen)減(jian)(jian)(jian)(jian)壓裝(zhuang)置(zhi)應(ying)處于熱備(bei)用狀態。設計(ji)計(ji)算時根據二次(ci)蒸(zheng)(zheng)汽(qi)(qi)的(de)量(liang)確定進入減(jian)(jian)(jian)(jian)溫(wen)(wen)(wen)減(jian)(jian)(jian)(jian)壓裝(zhuang)置(zhi)的(de)一(yi)次(ci)蒸(zheng)(zheng)汽(qi)(qi)和減(jian)(jian)(jian)(jian)溫(wen)(wen)(wen)水量(liang)，減(jian)(jian)(jian)(jian)溫(wen)(wen)(wen)水壓力(li)、溫(wen)(wen)(wen)度應(ying)滿足噴水及霧化的(de)要求(qiu)，水質(zhi)不(bu)低(di)于蒸(zheng)(zheng)汽(qi)(qi)品質(zhi)。
2、減(jian)溫減(jian)壓裝(zhuang)置型號(hao)編制
裝置的型號表(biao)示方(fang)法如下：
注1:對于減溫裝置(zhi)和減壓(ya)裝置(zhi)，其代號則(ze)分別為W或Y表示。
注2:型號有關的壓力值，均保留一(yi)位小數。
例：WY80-3.82/450-0.98/260-8.0/104表示(shi)出口(kou)蒸(zheng)氣(qi)流量為(wei)(wei)80t/h；進口(kou)蒸(zheng)氣(qi)壓(ya)力3.82MPa，溫度450℃；出口(kou)蒸(zheng)汽壓(ya)力為(wei)(wei)0.98MPa，溫度260℃；溫度給(gei)水壓(ya)力為(wei)(wei)8.0MPa，給(gei)水溫度為(wei)(wei)104℃的減溫減壓(ya)裝置。
3、減溫減壓裝置執(zhi)行標(biao)準
減(jian)溫(wen)減(jian)壓裝置標準：JB/T6323-2002《減(jian)溫(wen)減(jian)壓裝置》
減溫減壓(ya)閥(fa)標準：GB/10868-2005《電站減溫減壓(ya)閥(fa)》
給水(shui)調(diao)節閥標準：GB/10869-2005《電(dian)站調(diao)節閥》
4、減溫(wen)減壓(ya)裝置分類方法
A、按結構分類
1)、一體式減(jian)溫減(jian)壓裝置(zhi)；（WY型(xing)）
2)、分(fen)體式減(jian)溫(wen)減(jian)壓裝置；（Y-W型）
3)、減溫(wen)裝置（W型）；
4)、減壓裝置（Y型）；
B、按蒸汽參數(shu)分類：
1)、中溫中壓(ya)減溫減壓(ya)裝(zhuang)置(zhi)；（P1≤3.82MPa，溫度T1≤425℃）；
2)、次高壓減(jian)溫(wen)減(jian)壓裝置；（P1≤5.4MPa，溫(wen)度T1≤485℃）；
3)、高溫(wen)高壓(ya)減(jian)溫(wen)減(jian)壓(ya)裝置(zhi)；（P1≤10MPa，溫(wen)度T1≤540℃）；
5、減溫減壓(ya)裝置主(zhu)要性能(neng)指標
1)、進口(kou)蒸汽壓力P1和溫度T1
中(zhong)溫(wen)中(zhong)壓：P1≤3.82MPa，溫(wen)度T1≤425℃。
次高溫高壓：P1≤5.4MPa，溫度T1≤485℃。
高溫(wen)高壓(ya)：P1≤10MPa，溫(wen)度T1≤540℃。
2)、出口蒸汽流量Q
減溫減壓(ya)裝置出(chu)口流量Q的變(bian)化范(fan)圍(wei)為10%Q~120%Q，在(zai)此范(fan)圍(wei)內調(diao)節比較理(li)想。
若(ruo)有特(te)殊要求，可與本公司協商另定(ding)。
3)、出(chu)口蒸汽壓力(li)P2
出口蒸汽(qi)壓力P2的調(diao)節精(jing)度不(bu)(bu)低(di)于2.5級。誤差(cha)不(bu)(bu)大于±0.04MPa；
4)、出口蒸(zheng)汽溫度T2
出口蒸汽(qi)溫度(du)T2的調節精度(du)不(bu)低于2.5級。±2.5℃；
5)、噪音
裝置正(zheng)常(chang)運行時，在減溫減壓閥下(xia)游(you)一米，同時距管壁一米處測其(qi)噪音，噪音音級(ji)應
不大于85分貝。
6、減溫減壓(ya)裝置訂貨(huo)須知
訂合同時請提供：
1)、出口(kou)(kou)蒸汽流量Q、進口(kou)(kou)蒸汽壓力(li)P1、溫度(du)T1、出口(kou)(kou)蒸汽壓力(li)P2、溫度(du)T2；
2)、減溫給水(shui)壓(ya)力Pb、溫度(du)tb；
3)、注明(ming)控(kong)制(zhi)方式；（儀表盤控(kong)制(zhi)，PLC、DCS控(kong)制(zhi)，DCS監(jian)視(shi)）
4)、控制類別(bie)：電動、氣動、液動；
選擇氣動(dong)閥時還必須提供(gong)：
1)、作(zuo)用形式：氣開式或氣閉式；正作(zuo)用或反作(zuo)用；
2)、氣源壓力；
3)、其(qi)它附件說明：用戶如有特(te)殊要求，應(ying)在商定后注明或另行簽訂(ding)技(ji)術協議。
注：1出口(kou)蒸汽(qi)壓力(li)P2應(ying)不低于飽(bao)和溫度所對(dui)應(ying)的壓力(li)值，或(huo)出口(kou)蒸汽(qi)溫度T2應(ying)不低于P2所對(dui)應(ying)的飽(bao)和溫度值；
2對減(jian)(jian)溫減(jian)(jian)壓一(yi)體式(shi)結構：減(jian)(jian)溫給水(shui)的壓力Pb≥0.6P1＋0.8MPa；若Pb值太低，將無(wu)法噴入減(jian)(jian)溫減(jian)(jian)壓閥(fa)內減(jian)(jian)溫。
（3）對減(jian)溫減(jian)壓分體(ti)式結(jie)構：減(jian)溫給水的壓力Pb≥P2＋0.6MPa；
附表(biao)：基(ji)本訂貨要求
注(zhu)：不加注(zhu)壓(ya)力值(zhi)為表壓(ya)
減溫減壓裝置的(de)供貨范圍(wei)為括號標(biao)志以內，主要(yao)有
1.減(jian)(jian)壓系統：減(jian)(jian)溫減(jian)(jian)壓閥(fa)或減(jian)(jian)壓閥(fa)、節流(liu)孔板等(deng)；
2.減溫系(xi)統：給水調節閥(fa)(fa)或可(ke)調噴(pen)嘴(zui)、截止閥(fa)(fa)、節流閥(fa)(fa)等；
3.安全系統：安全閥、止回閥等；
4.管路系統：蒸汽管道(dao)、混合管道(dao)、過渡(du)管、減溫水管等(deng)；
5.配(pei)套附件：截止閥、雙金(jin)屬溫度計及(ji)接管、壓力(li)表及(ji)三(san)通閥、彎道、接頭(tou)、法蘭、襯墊(dian)、
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