產(chǎn)品詳情
PTFE學(xué)名聚四氟乙烯，是一種具有耐熱性、化學(xué)惰性、絕緣穩(wěn)定性和低摩擦性的高性能材料，被廣泛用作煎鍋涂層、透氣運(yùn)動(dòng)服材料、電子產(chǎn)品絕緣體等。至今尚無(wú)有效回收再利用這種材料的方法，而傳統(tǒng)的燃燒處理法不僅易損害燃燒設(shè)備，且會(huì)產(chǎn)生高污染氣體。德國(guó)拜羅伊特大學(xué)上周發(fā)表公報(bào)說(shuō)，該校材料加工學(xué)家與企業(yè)界合作，研發(fā)出一種經(jīng)濟(jì)有效且無(wú)污染的特氟龍材料回收方法。這一成果將有助解決特氟龍垃圾處理問(wèn)題。德國(guó)研究人員首先將這種材料分解成較小的分子，并以微波作為加熱源產(chǎn)生熱解作用，從而使回收率達(dá)到93％。間距的測(cè)量、調(diào)整內(nèi)容：相鄰葉輪出口間距；首級(jí)葉輪與末級(jí)葉輪的總間距；相鄰導(dǎo)葉的進(jìn)口間距；首末級(jí)導(dǎo)葉的進(jìn)口總間距。測(cè)量方法及調(diào)整：葉輪間距以葉輪中心現(xiàn)或葉輪的邊緣作基準(zhǔn)，用鋼片尺或?qū)Ｓ每ǔ邅?lái)測(cè)量。每一個(gè)間距或總間距的誤差，一般不應(yīng)超過(guò)或小于規(guī)定1毫米。如不符合要求，應(yīng)進(jìn)行調(diào)整。調(diào)整的方法，根據(jù)具體情況而定。總間距合乎要求，但有個(gè)別間距不合要求，有的間距大，有的間距小，這多半由于葉輪輪轂長(zhǎng)短不均。
支風(fēng)管不能大于5.5m/s。在4dB時(shí)，風(fēng)管允許流速a.主風(fēng)管不能大于7.5m/s。支風(fēng)管不能大于6.m/s。在45dB時(shí)，風(fēng)管允許流速a.主風(fēng)管不能大于9.m/s。支風(fēng)管不能大于7.m/s。在一般的設(shè)計(jì)當(dāng)中主風(fēng)道為鋼板及非金屬風(fēng)管材質(zhì)時(shí)，主風(fēng)道的風(fēng)機(jī)風(fēng)速控制在6~14m/s。采用金屬風(fēng)管時(shí),不應(yīng)大于2m/s。采用內(nèi)表面光滑的混凝土等非金屬風(fēng)管時(shí),不應(yīng)大于15m/s。上述方法再選用時(shí)，用戶好能夠根據(jù)自己的實(shí)際工況來(lái)工作。
ADL系列導(dǎo)軌式電能表均帶有標(biāo)準(zhǔn)的RS485通訊接口，采用ModbusRTU標(biāo)準(zhǔn)通訊協(xié)議，通過(guò)儀表的通訊接口將儀表組網(wǎng)，終實(shí)現(xiàn)在監(jiān)控中心進(jìn)行集中監(jiān)控和管理。DL導(dǎo)軌式安裝電能表ADL系列導(dǎo)軌式安裝電能表包括單相復(fù)費(fèi)率電能表和三相復(fù)費(fèi)率電能表。該系列電能表體積小巧，外形美觀，結(jié)構(gòu)模數(shù)化，可安裝于35mm標(biāo)準(zhǔn)導(dǎo)軌上。圖1為ADL系列儀表外形及安裝方式。圖1ADL系列儀表外形及安裝方式ADL系列導(dǎo)軌式安裝電能表支持一次接入和二次接入兩種接線方式，不僅可用于低壓配電柜，還可以用在終端配電箱，電流表大規(guī)格為2(8)A。
25V21A-1C22R 25V17A-11C22R 25V14A-86D22R 25V21A-1C22R
25V17A-11C22R 25V14A-86D22R 25V-10A-86A-22R 25V-21A-11A-22R
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25V10A-86A22R 25V21A-11A22R 25V17A-86B22R 25V10A-86C22R
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25V-21A-86B-22R 25V-10A-1A-22R 25V-21A-86A-22R 25V-17A-1B-22R
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25V12A-11A22R 25V10A-86B22R 25V14A-1C22R 25V12A-11C22R
25V10A-86D22R 25V-17A-1A-22R 25V-14A-11A-22R 25V-12A-86B-22R
25V-17A-1C-22R 25V-14A-11C-22R 25V-12A-86D-22R25V17A-1A22R
25V14A-11A22R 25V12A-86B22R
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