產(chǎn)品詳情
于是就根據(jù)三個原理制造出三種類型的疏水閥:分類為機械型、熱靜力型、熱動力型。機械型疏水閥:機械型也稱浮子型,是利用凝結(jié)水與蒸汽的密度差,通過凝結(jié)水液位變化,使浮子升降帶動閥瓣開啟或關(guān)閉,達到阻汽排水目的。機械型疏水閥的過冷度小,不受工作壓力和溫度變化的影響,有水即排,加熱設(shè)備里不存水,能使加熱設(shè)備達到佳換熱效率。大背壓率為8%,工作質(zhì)量高,是生產(chǎn)工藝加熱設(shè)備理想的疏水閥。上海桂隆機械型疏水閥有自由浮球式、自由半浮球式、杠桿浮球式、倒吊桶式等1.自由浮球式疏水閥:自由浮球式疏水閥的結(jié)構(gòu)簡單,內(nèi)部只有一個活動部件精細研磨的不銹鋼空心浮球,既是浮子又是啟閉件,無易損零件,使用壽命很長,YQ牌疏水閥內(nèi)部帶有Y系列自動排空氣裝置,非常靈敏,能自動排空氣,工作質(zhì)量高。
Allen Bradley Micrologix 1100 1763-L16DWD
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ALLEN-BRADLEY 1794-IE12 1794IE12 SER A
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3HNE 00601-1
3HNE 00609-1
3HNE 00625-1
3HNE 00628-1保證全新原裝,沖量大促銷!
3HNE 00632-1
3HNE 00647-1
3HNE 00656-1
3HNE 00658-1
3HNE 00659-1
3HNE 00710-1
3HNE 00727-1
3HNE 00749-1
3HNE 00752-1
3HNE 00757-1
3HNE 00758-1
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3HNE 00793-1保證全新原裝,沖量大促銷!
3HNE 00800-1
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BALLUFF BML-S1B0-Q61F-M400-10-KA02 Magnetic Linear Encoder
Balluff Wegaufnehmer BTL5-C17-M00 40-P-SA120-S32 BTL031K
BALLUFF BOS 12m-pa-le10-s4 bos00wf 10-30v dc 200mA
BALLUFF Schreib- / Lesekopf Typ: BIS C-60R-001-08P
Balluff Capteur BES 516-3007-E4-C-PU-05
Balluff Capteur BES 516-3007-E4-C-PU-05
BALLUFF Proximity Sensor #BES 516-383-S 4-C (K-78)
BALLUFF BES Q17KA-NSC50B PROXIMITY SWITCH SENSOR 10-30 VDC 100 mA
BALLUFF N?herungsschalter BES 516-325-AO-C-PU- Neu
Balluff BES02JW, BES M12MD1-PSC80E-S04F-W, Inductive Sensor, NEW! Factory Sealed
BALLUFF BES-516-213-E5-E-S5 INDUCTIVE PROXIMITY SENSOR M18x80 BES0298
Balluff BES M18MG1-PSC12B-S04G Inductive proximity sensor 120505
BALLUFF PROXIMITY SENSOR BES Q08ZE-PSC20B-S49G
BALLUFF PROXIMITY SENSOR BES Q08ZE-PSC20B-S49G
Balluff 0735DE, BNS 813-B03-L12-61-A-55-0908 Positionsschalter
Balluff N?herungsschalter BESM12MF1-PSC10F-S04G
Balluff N?herungsschalter BESM12MF1-PSC10F-S04G
Balluff BES 516-357-S 4-C Inductive Proximity Sensor
Balluff BES 516-357-S 4-C Inductive Proximity Sensor
Balluff BES00ZL BES 516-371-G-E4-C-PU-03 10-30VDC 200mA
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Balluff BES M30MG1-PSC40F-S04G Proximity Sensor
Balluff BKT 67M-006-U-S92 Kontrasttaster BKT0006 Taster Tastbereich 6...12 mm
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BALLUFF BES 516-346-HO-Y Proximity switch inductive sensor
Balluff Proximity Sensor BES 516-324-E4-C-S-4
BALLUFF BES-516-327-S4-C INDUCTIVE PROXIMITY SENSOR 10-30V 10MM NEW IN PACKAGE
BALLUFF BES-516-327-S4-C INDUCTIVE PROXIMITY SENSOR 10-30V 10MM NEW IN PACKAGE
Balluff BES 516-542-BO-H Proximity Sensor M12x1 Normally Open DC W/7' Cable
BALLUFF BES 516-326-S4-L N?herungsschalter 5mm 10-30VDC 400mA
Balluff BOS 12M-PA-LE10-S4 BOS00WF 10-30V DC 200mA
Balluff BES 516-3005-G-E4-C-S49-00,2 inutilisé
Balluff BTL5-A11-M0152-Z-S32 Micropulse
為什么會結(jié)霜與結(jié)霜機理;首先明確,結(jié)霜是發(fā)生在制冷系統(tǒng)蒸發(fā)器,而且是風(fēng)冷式蒸發(fā)器;當(dāng)環(huán)境溫度比較低的時候(比如低于度),此時蒸發(fā)測的蒸發(fā)溫度比較低(我們按照℃環(huán)境來說,蒸發(fā)溫度就接近-15℃甚至更低);我們可以認為蒸發(fā)器中部位置銅管的溫度近似等于蒸發(fā)溫度,那么銅管的溫度在-15℃左右,此時空氣中如果有水蒸汽,那么空氣中的水蒸氣遇到低溫翅片(銅管),必然后凝結(jié)成固態(tài)的小冰晶,久而久之,蒸發(fā)器就結(jié)霜了;當(dāng)然并不是溫度越低越容易結(jié)霜,一般在制冷行業(yè)測試領(lǐng)域,干球/濕球=2/1的時候是結(jié)霜工況,或者干球/濕球=/的時候是重度結(jié)霜工況;此時機組的結(jié)霜是zui明顯也zui容易的;為什么這個工況容易結(jié)霜?因為此時空氣中的濕度zui大,水蒸氣含量是zui高的;在低溫工況下,比如-15℃以下此時空氣中的相對濕度反而低,所以結(jié)霜反而不是很嚴重。
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