WOODWARD 9907-1183伺服調(diào)速器
保護(hù)功能齊全。 原工頻柜因無(wú)單片機(jī)控制,其保護(hù)功 能差,往往由于負(fù)載的短路、斷路及電壓的不穩(wěn)定,造成變壓器燒毀、工作不穩(wěn)定。而變頻電源柜由于DSP 的控制,其保護(hù)功能齊全,避免了由于電網(wǎng)及負(fù)載的故障引起的問(wèn)題,保證系統(tǒng)的穩(wěn)定運(yùn)行。節(jié)能效果明顯。據(jù)測(cè)試,每臺(tái)變頻電源柜比相應(yīng)的工頻柜節(jié)電都在 20%左右,有力的節(jié)約了電能,提高了工作效率,保證了加熱系統(tǒng)的效果。 總之,變頻加熱是稠油熱采的一次革命。
WOODWARD 9907-1183伺服調(diào)速器我國(guó)的稠油資源相當(dāng)豐富,推廣該技術(shù), 是采油行業(yè)節(jié)能減排和提高效率的有效途徑。RM系列模塊化UPS電源采用集成封裝IGBT模塊而非分立器件。相對(duì)于分立IGBT器件,集成封裝IGBT模塊具有更大的電流承載能力,更小的功耗,對(duì)于提高功率模塊的效率與可靠性有著巨大的好處。采用分立器件進(jìn)行功率模塊的設(shè)計(jì),需要進(jìn)行多個(gè)IGBT器件的并聯(lián),同時(shí)需要處理續(xù)流二極管的設(shè)計(jì)與工藝問(wèn)題,給系統(tǒng)的可靠性以及生產(chǎn)過(guò)程的一致性都帶來(lái)了極大的風(fēng)險(xiǎn)。集成封裝的IGBT模塊具有極大的電流通斷能力,不需并聯(lián)即可滿足功率模塊的需求,同時(shí)集成了續(xù)流二極管,降低了設(shè)計(jì)工藝與生產(chǎn)過(guò)程的風(fēng)險(xiǎn)。通過(guò)采用集成封裝的IGBT模塊,RM系列產(chǎn)品在實(shí)現(xiàn)高效率、低功耗的同時(shí),保證了功率模塊以及系統(tǒng)的高可靠性。采取電源輸入、輸出、電力監(jiān)制的一體化配電設(shè)計(jì),七寸全彩觸摸觸摸屏,提供觸摸式的人機(jī)交互功能,為重要設(shè)備提供電力分配、安全保護(hù)、參數(shù)計(jì)量及綜合管理。主路、支路均可監(jiān)控;配備 RS485 遠(yuǎn)程通訊接口,用戶可實(shí)現(xiàn)遠(yuǎn)程監(jiān)測(cè)。開(kāi)關(guān)采用施耐德或 ABB 系列產(chǎn)品, 所有開(kāi)關(guān)、銅排都安裝在防護(hù)板后,防止觸電。機(jī)柜可配置防浪涌、防雷擊;可設(shè)計(jì)為雙路輸入、輸出,系統(tǒng)可不斷電進(jìn)行維護(hù)數(shù)據(jù)中心用戶管理的研究和實(shí)踐是大型銀行在用戶管理模式探索道路上所邁出的堅(jiān)實(shí)一步,用戶管理是銀行業(yè)等大型信息化企業(yè)的管理基礎(chǔ),在這個(gè)管理就是競(jìng)爭(zhēng)力、安全即效益的時(shí)代,只有運(yùn)用優(yōu)秀的技術(shù)并結(jié)合高效的安全管理方法,才能實(shí)現(xiàn)用戶管理效率和安全的平衡,提高勞動(dòng)生產(chǎn)率,降低操作風(fēng)險(xiǎn),最終實(shí)現(xiàn)企業(yè)競(jìng)爭(zhēng)力的穩(wěn)步提升。船用鍋爐的主要作用是產(chǎn)生蒸汽。
After sampling and dividing according to the specified system, they are sent to the coal sampling room for sample preparation according to the regulations.
d) An automatic water adding device is set on the belt conveyor before entering the mixer to meet the requirements of 9% - 11% moisture of the charged coal of the tamping coke oven.
e) The coal preparation system is selected and designed according to DT Ⅱ (a) belt conveyor. The specifications of the belt conveyor are: the belt width from the coal from the coal washing plant to the top of the coal blending tank is 1200mm, and the conveying capacity is 800t / h; The belt width from the bottom of the coal blending tank to the pulverizer room is 1000mm, and the conveying capacity is 350t / h; The belt width from the crusher room to the top of the coal tower is 1200mm, and the conveying capacity is 600t / h.
f) The whole coal preparation system operates on a four shift basis and is centrally controlled by PLC. It is widely used in coal mine temperature measurement industry. According to the demand of gob temperature monitoring, this paper designs a gob temperature monitoring system which integrates ZigBee technology,