一、油冷卻器簡(jiǎn)介
油冷卻器是電力系統(tǒng)中普遍使用的一種油冷卻設(shè)備,同時(shí)也適用于冶金、化工、礦山、輕工及重工等部門(mén)。主要用于設(shè)備潤(rùn)滑油,變速系統(tǒng)油變器油,汽輪機(jī)油及磨煤油的油系統(tǒng)中循環(huán)冷卻。
目前,國(guó)內(nèi)生產(chǎn)的冷油器都是一個(gè)模式,經(jīng)過(guò)多年來(lái)的實(shí)踐這種冷油機(jī)的缺點(diǎn)很多;體積大,冷卻效果差,密封復(fù)雜,維修難。我公司科研人員研發(fā)的一種新型冷油器,具有冷卻效果好,出口油溫度接近水溫,結(jié)構(gòu)簡(jiǎn)單,操作方便,體積小等特點(diǎn)。
二、油冷卻器結(jié)構(gòu)特點(diǎn)
我公司科研究人員研究的新型冷油器已獲國(guó)家磚利,并一家生產(chǎn)。該設(shè)備具有結(jié)構(gòu)簡(jiǎn)單,維修拆卸方便,密封簡(jiǎn)容可靠(油,水無(wú)密封結(jié)構(gòu)),體積小,換熱率高(出口油溫和水溫度比較相近)。
1、 采用不銹鋼管( 1Cr18Ni9Ti )作為換熱管,具有承壓性能好,壽命長(zhǎng)。
2、 采用氬氣保護(hù)焊代替?zhèn)鹘y(tǒng)脹接結(jié)構(gòu),根除泄露。
3、 油水隔離采用無(wú)密封結(jié)構(gòu),徹底根除油水相串現(xiàn)象。
4、 采用新的換熱形式,油水相對(duì)運(yùn)行,同時(shí)利用液體熱輕冷重原理,從而提高換熱效率,實(shí)現(xiàn)出口油溫和水溫相近,一般 >2-3 0 C ,同時(shí)還可以利用冷卻水閥門(mén)調(diào)控出口油溫。
5、 由于結(jié)構(gòu)先進(jìn),上水室無(wú)要設(shè)排氣閥門(mén),操作等簡(jiǎn)單。
6、 維修方便。由于其結(jié)構(gòu)先進(jìn),無(wú)油水密封,拆開(kāi)上下水室即可清理,拆卸十分方便。
三、油冷卻器的選定
1、熱交換量Q(Kcal/h)。發(fā)熱量大于散熱量,相差的熱量若用冷卻器則可防止油溫上升,此稱為冷卻器的熱交換量Q,根據(jù)此Q選定冷卻器,計(jì)算所用記號(hào)如表A。Q=(T1-T2)*60*O.85*0.45*WS=(t2-t1)*60*1*1*Wt
2、冷卻水出口溫度t2(度)。相對(duì)于冷卻水出口溫度的冷卻水量的比率油: 冷卻水=1:0.5~1 (注)此時(shí)冷卻水的流速(冷卻水出入配管內(nèi)流速)須在0.5~1.5m/s的范圍t2=Q/60*WT+t1(度)
3、平均溫度差tm(度)。以作動(dòng)油與冷卻水出口、入口溫度差為基準(zhǔn),求對(duì)數(shù)平均溫度差tm。
4、傳熱面積A(m平方)A=Q/(tm*K) 。液壓管路中的油液,由于其相互間的摩擦及油與管壁之間的摩擦所生成的熱,是油溫上升,一般而言石油系的液壓油限于55度,在此溫度以上時(shí),由于粘度減低,增加漏油,閥的性能降低,泵的效率也下降,油的劣化等問(wèn)題也隨之而生,為防止以上缺點(diǎn),故使用冷卻器。
5、總括傳熱系數(shù)K(Kcal/平方m度.h)
6、由馬達(dá)輸出功率,算出必要交換熱量。發(fā)熱量E=輸出功率W*860。交換必要熱量Q=Ex 熱交換系數(shù)一般機(jī)械無(wú)熱源者取0.4~0.6;塑膠機(jī)械、壓鑄機(jī)械等有熱源者取0.6~0.8 。
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PGP505B0120AA2D3NJ5,PGP505B0130AA2D3NJ5,PGP505B0020CA2D3NJ5PGP505B0030CA2D3NJ5,
PGP505B0040CA2D3NJ5PGP505B0050CA2D3NJ5,
PGP505B0060CA2D3NJ5,PGP505B0070CA2D3NJ5,PGP505B0080CA2D3NJ5,
PGP505B0090CA2D3NJ5,PGP505B0100CA2D3NJ5,PGP505B0110CA2D3NJ5,PGP505B0120CA2D3NJ5,PGP505B0130CA2D3NJ5,
PGP505B0020AK1D3NJ5,PGP505B0030AK1D3NJ5
PGP505B0040AK1D3NJPGP505B0050AK1D3NJ5PGP505B0060AK1D3NJ5PGP505B0070AK1D3NJ5
PGP505B0080AK1D3NJ5PGP505B0090AK1D3NJ5PGP505B0100AK1D3NJ5PGP505B0110AK1D3NJ5
PGP505B0120AK1D3NJ5PGP505B0130AK1D3NJ5PGP505B0020CK1D3NJ5PGP505B0030CK1D3NJ5,PGP505B0040CK1D3NJ5,PGP505B0050CK1D3NJ5,PGP505B0060CK1D3NJ5
PGP505B0110CK1D3NJ5,PGP505B0120CK1D3NJ5,
PGP505B0130CK1D3NJ5PGP505B0020AJ1D3NJ5,PGP505B0030AJ1D3NJ5
PGP505B0040AJ1D3NJ5,PGP505B0050AJ1D3NJ5,PGP505B0060AJ1D3NJ5,PGP505B0070AJ1D3NJ5,PGP505B0080AJ1D3NJ5,PGP505B0090AJ1D3NJ5,PGP505B0100AJ1D3NJ5,PGP50110AJ1D3NJ5,PGP505B0120AJ1D3NJ5,PGP505B0130AJ1D3NJ5,
PGP505B0020CJ1D3NJ5,PGP505B0030CJ1D3NJ5,
PGP505B0040CJ1D3NJ5,PGP505B0050CJ1D3NJ5,
PGP505B0060CJ1D3NJ5,CBY3080C-B3FR,CBY3100C-B3FR,CBY4125C-B3FR,CBY4140C-B3FR,齒輪泵 廠家 價(jià)格CBY4150C-B3FR,CBY4160C-B3FR,CBY4170C-B3FR,CBY4180C-B3FR,齒輪泵 廠家 價(jià)格
CBY4190C-B3FR,CBY4200C-B3FR,CBY2010F-B1TR,CBY2016F-B1TR,齒輪泵 廠家 價(jià)格
CBY2025F-B1TR,CBY2032F-B1TR,CBY2040F-B1TR,CBY3050F-B1TR,齒輪泵 廠家 價(jià)格AR12-F-L-01-C-20,AR16-F-L-01-C-20,AR22-F-L-01-C-20,可變排量柱塞泵
AR08-F-R-01-C-20,AR10-F-R-01-C-20,可變排量柱塞泵
AR12-F-R-01-C-20,AR16-F-R-01-C-20,AR22-F-R-01-C-20,可變排量柱塞泵
CBY3063F-B1TR,CBY3080F-B1TR,CBY3100F-B1TR,CBY4125F-B1TR,齒輪泵 廠家 價(jià)格CBY4140F-B1TR,CBY4150F-B1TR,CBY4160F-B1TR,CBY4170F-B1TR,齒輪泵 廠家 價(jià)格CBY4180F-B1TR,CBY4190F-B1TR,CBY4200F-B1TR,CBY2010E-B1TR,齒輪泵 廠家 價(jià)格CBY2016E-B1TR,CBY2025E-B1TR,CBY2032E-B1TR,CBY2040E-B1TR,齒輪泵 廠家 價(jià)格CBY3050E-B1TR,CBY3063E-B1TR,CBY3080E-B1TR,CBY3100E-B1TR,齒輪泵 廠家 價(jià)格CBY4125E-B1TR,CBY4140E-B1TR,CBY4150E-B1TR,CBY4160E-B1TR,齒輪泵 廠家 價(jià)格CBY4170E-B1TR,CBY4180E-B1TR,CBY4190E-B1TR,CBY4200E-B1TR,齒輪泵 廠家 價(jià)格
CBY2010C-B1TR,CBY2016C-B1TR,CBY2025C-B1TR,CBY2032C-B1TR,齒輪泵 廠家 價(jià)格
SGLL5-60/1.0,SGLL6-80/1.0,SGLL6-100/1.0 SGLL油冷卻器 廠家 價(jià)格
SGLL6-120/1.0,SGLL6-150/1.0,SGLL4-12/1.0L,SGLL油冷卻器 廠家 價(jià)格CBY2040C-B1TR,CBY3050C-B1TR,CBY3063C-B1TR,CBY3080C-B1TR,齒輪泵 廠家 價(jià)格CBY3100C-B1TR,CBY4125C-B1TR,CBY4140C-B1TR,CBY4150C-B1TR,齒輪泵 廠家 價(jià)格CBY4160C-B1TR,CBY4170C-B1TR,CBY4180C-B1TR,CBY4190C-B1TR,齒輪泵 廠家 價(jià)格CBY4200C-B1TR,CBY2010F-B2TR,CBY2016F-B2TR,CBY2025F-B2TR,齒輪泵 廠家 價(jià)格CBY2032F-B2TR,CBY2040F-B2TR,CBY3050F-B2TR,CBY3063F-B2TR,齒輪泵 廠家 價(jià)格SWH-G02-C3B-D12-20,SWH-G02-C4B-D12-20,電磁換向閥
SWH-G02-C5B-D12-20,SWH-G02-C7B-D12-20,電磁換向閥