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產(chǎn)品簡介
1771-IB
產(chǎn)品價格:¥100.00元/個
上架日期:2025-04-21
發(fā)貨地:福建 廈門市
供應(yīng)數(shù)量:不限
最少起訂:1個
瀏覽量:491
詳細(xì)說明
    詳細(xì)參數(shù)
    品牌AB(Allen-Bradley)型號1771-IB
    結(jié)構(gòu)形式模塊式安裝方式控制室安裝
    LD指令處理器硬PLCI/O點(diǎn)數(shù)1771-IB
    功能1771-IB工作電壓220
    輸出頻率220處理速度20
    程序容量10數(shù)據(jù)容量20
    產(chǎn)品認(rèn)證ccc環(huán)境溫度10
    環(huán)境濕度10加工定制
    重量1產(chǎn)地美國
    外形尺寸10

    1771-IB

    1771-IB

    1771-IB


    《聯(lián)系人;歐先生》
    《座機(jī):0592-5709825》
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    如采用變頻調(diào)速,根據(jù)需要來調(diào)節(jié)電動機(jī)的轉(zhuǎn)速,使之在高效狀態(tài)下減少電動機(jī)的運(yùn)行功率,可在滿足生產(chǎn)工藝要求的條件下達(dá)到節(jié)能的目的。從運(yùn)行質(zhì)量的角度看,氫壓縮機(jī)系統(tǒng)大多不能根據(jù)負(fù)載的輕重連續(xù)地進(jìn)行調(diào)整。而采用變頻調(diào)速后,則可以十分方便有效地進(jìn)行連續(xù)調(diào)節(jié),保持壓力、流量等參數(shù)的穩(wěn)定,從而大大提高壓縮機(jī)工作效率及性能。

    二. 氫壓縮機(jī)節(jié)能原理

    根據(jù)空氣壓縮理論,氫壓縮機(jī)的軸功率PZ(kW),排氣量QD(m3/min)和轉(zhuǎn)速n(r/min)符合下列公式:

    式中:--氫壓縮機(jī)輸入的平均扭矩N·m

         K—與氣缸容積、壓力、溫度和泄露有關(guān)的系數(shù)

         n2—調(diào)節(jié)后的壓縮機(jī)轉(zhuǎn)速,r/min

         --氣缸容積,m3

    根據(jù)上述理論分析,在氫壓縮機(jī)的氣缸容積不能改變的條件下,只有調(diào)節(jié)氫壓縮機(jī)的轉(zhuǎn)速來改變排氣量;氫壓縮機(jī)是恒轉(zhuǎn)矩負(fù)載,壓縮機(jī)軸功率與轉(zhuǎn)速的一次方成正比變化;在氫壓縮機(jī)總排氣量大于供氣量時,通過降低壓縮機(jī)轉(zhuǎn)速調(diào)節(jié)供氣壓力,是達(dá)到壓縮機(jī)經(jīng)濟(jì)運(yùn)行的有效方法。

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