新闻德国Georgii Kobold KOD444-A/S51厂家进口
后果：水质达不到管道系统运行要求，往往还会造成管道截面减少或堵塞。措施：用系统内大设汁流量或不应小于3m／s的水流速度进行冲洗。应以排出口水色、透明度与入口水的水色、透明度目测一致为合格。禁忌14：冬期施工在负温度下进行水压试验。后果：由于水压试验时管内很快结冰，使管冻坏。措施：尽量在冬施前进行水压试验，并且试压后要将水吹净，特别是阀门内的水必须清除于净，否则阀门将会冻裂。工程必须在冬季进行水压试验时，要保持室内正温度下进行，试压后要将水吹净。
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新闻德国Georgii Kobold KOD444-A/S51厂家进口
利用压缩机的吸气压力作为蒸发器内的饱和压力，查表得到近似蒸发温度。用测温计测出回气管的温度，与蒸发温度对比是否在正常范围5-8℃之间。必须同时读取吸气压力值和回气管温度，否则造成计算出的实际过热度不准确。调整中，如果感到过热度太小，则可把调节螺杆按顺时针方向转动（即增大弹簧力，减小热力膨胀阀开启度），使流量减小；反之，若感到过热度太大，即供液不足，则可把调节螺杆朝相反方向（逆时针）转动，使流量增大。
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新闻德国Georgii Kobold KOD444-A/S51厂家进口
分析液压缸密封件的布局引起低压漏油状况密封件的布局引起低压漏油.种情况，密封件的布局办理是导致低压漏油很症结的一个方面。按照阐发，但凡在低压时漏油。一般为以下三种情况组成：漏油有两种：一种是活塞杆漏油，看得见；另外一种是油缸内漏，看不见。两者都有一个赋性，即是两圆周面上感导力不克不及为零，如组成某一点上感导力为零，此处就会漏油。阐发了以上两种情况，密封件两唇口有两个接触圆周面。表里两个圆周面感导力能否均匀分布，密封件表里唇口接触面的粗造度，且则应用，密封件要恢复原状，等到低压力时，积油就会残留在漏油的一边。
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OMRON A22NS-3BL-NRA-G210-NN
BLX V200E-EX-D1-90-B-C1
小强工控 CARLO GAVAZZI PS31L-MT03PH-T00
SCHMERSAL 103004060 SLG440COM-ER-0500-02
Crouzet "82510 503 24V/ 50/60Hz (without pinion and gear)
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SECO ER20/D6
Rexroth 1825503202
BANNER WLAB105X180DQ
SCHNEIDER NSYSHLT8040
Pfeiffer Vacuum GmbH PTR26950
MD墨迪 FAIC/BN-2E90° Retroreflective 4 m NPN Q/QN plast. conn. M12
SIEMENS 5TE6810
CASAPPA 019988MM MOTOR PLM20.16S0-82E2-LEA/EB-N-EL-AV
Eaton Moeller 283183 MSC-R-10-M9(230V50HZ)
Gefran-2019 F020267 TR6-B-4-B-C-A-I-B-1 000X000X00100XA
VIVOIL齿轮泵X1P2502FBBD
DEMAG ZBA180B6B280 15kw 920 1/min
Debnar ASK 2000/1A 15VA KI.0.5
RIEGLER 252.19 TCR.11960720 OMRON DRT2-MD16-1Z-Laser Z15M18B-F-638-lg90aKTR Zahnkranz 65/95 联轴器
新闻德国Georgii Kobold KOD444-A/S51厂家进口
使用水轮机的冷却塔系统故障点少，节能水轮机以一台水轮机代替电机、减速器和传动部分，可以实现长时间无故障运行，为使用单位节省大量的维护和更换冷却塔的电机和减速器的费用和人力。转速特性曲线表示水轮机在导水叶开度、叶片转角和水头为某常数时，其他参数与转速之间的关系。在水轮机的模型试验中，常规的做法是保持一定的水头，通过改变轴上的负荷（力矩）来改变转速，达到调节工况的目的。故整理模型试验的数据时，以转速特性曲线为方便，水轮机的其他特性曲线，实际上都是从转速特性曲线换算而得。
