芯科技，芯創(chuàng)新；氣體真空傳感器，DG120IG-9，84447064
但無論是哪種方法都具有一定的局限性，具體表現(xiàn)在：轉(zhuǎn)爐煉鋼時的回硫現(xiàn)象削弱了鐵水預(yù)脫硫的實(shí)際效果；攪拌器或噴槍會污染鐵水；鐵損較大。對于超低硫鋼生產(chǎn)，在鐵水預(yù)處理和轉(zhuǎn)爐冶煉的基礎(chǔ)上，還需要進(jìn)行鋼水二次深脫硫，方法主要有LF攪拌脫硫、RH噴粉脫硫、鋼包噴粉脫硫。二次精煉的噴粉裝置按載具與鋼水的接觸方式可簡單分為兩類，一類為直接接觸型，如SL、TN、KIP、V-KIP、VOD-PRH-PB等，即噴槍插入鋼液中與液體接觸；另一種是非接觸式如RH-PTB，噴槍不與鋼液接觸。
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BALLUFF PROXIMITY SENSOR BES516-3017 BES5163017 E4-C-PU 10-30 V DC 150mA
BALLUFF PROXIMITY SENSOR BES516-3017 BES5163017 E4-C-PU 10-30 V DC 150mA
Balluff Photoelectric Emitter BLS 65K-1-G50-1
Balluff BTL5-M-2814-1S Transducer BTL5M28141S
alluff BTL5-M-2814-1S Transducer BTL5M28141S
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BALLUFF INDUKTIVSENSOR BES 516-370-G-ES-Y-S49 OVP
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1 NIB BALLUFF BLS-18K-XX-1J-B1-L2 BLS18KXX1JB1L2 PROXIMITY SWITCH
BALLUFF P/n BES M12EG1-PSC60Z-S04G-S11
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BALLUFF BOS 18M-WO-7RB-BO-L PHOTOELECTRIC SENSOR 20-50VAC 45-65HZ
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Balluff BES-516-209-S21-E Sensors
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一個有效節(jié)能的供熱系統(tǒng)都配有相應(yīng)的調(diào)節(jié)控制設(shè)備，如自力式流量、壓差控制閥等。隨著供熱計量收費(fèi)體制的改革，室內(nèi)供暖系統(tǒng)裝配溫控閥后熱網(wǎng)如何正確配備控制設(shè)備是非常重要的。本文論述了裝配溫控閥前后系統(tǒng)的特性變化，指出了與溫控閥正確配備的控制設(shè)備，對設(shè)計和改造有指導(dǎo)意義。隨著熱量計量收費(fèi)體制的改革，每個散熱器上都開始安裝溫控閥。所以供暖運(yùn)行中隨著用戶對溫控閥的不斷調(diào)節(jié)，熱網(wǎng)流量不斷變化。這樣熱網(wǎng)成為變流量運(yùn)行，流量調(diào)節(jié)的主動權(quán)掌握在用戶手中，而且熱力公司將無法預(yù)知和控制流量的變化。
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