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80CYZ32自吸油泵配Y7.5KW-2电机作柴油输送泵铜叶轮

来源网址:http://www.hpump.cn/

80CYZ32自吸油泵配Y7.5KW-52电机流量13.5m3/h,扬程32米,汽蚀余量4米,进出口径80,轴功率6.8KW,转速2900r/min.    柴油是轻质石油产品,复杂烃类(碳原子数约10~22)混合物。为柴油机燃料。主要由原油蒸馏、催化裂化、热裂化、加氢裂化、石油焦化等过程生产的柴油馏分调配而成;也可由页岩油加工和煤液化制取。分为轻柴油(沸点范围约180~370℃)和重柴油(沸点范围约350~410℃)两大类。广泛用于大型车辆、铁路机车、船舰。

柴油最重要用途是用于车辆、船舶的柴油发动机。与汽油相比,柴油能量密度高,燃油消耗率低,但废气中含有害成分(NO,颗粒物等)较多。

由于柴油机较汽油机热效率高,功率大,燃料单耗低,比较经济,故应用日趋广泛。它主要作为拖拉机、大型汽车、内燃机车及土建、挖掘机、装载机、渔船、柴油发电机组和农用机械的动力。柴油是复杂的烃类混合物,碳原子数约为10-22。

0号柴油:    主要由原油蒸馏,催化裂化,加氢裂化,减粘裂化,焦化等过程生产的柴油馏分调配而成(还需经精制和加入添加剂)。柴油分为轻柴油(沸点范围约180℃ ~370℃)和重柴油(沸点范围约350℃ ~410℃)两大类。柴油使用性能中最重要的是着火性和流动性,其技术指标分别为十六烷值和凝点,我国柴油现行规格中要求含硫量控制在0.5%-1.5%。      柴油按凝点分级,轻柴油有10、5、0、-10、-20、-35、-50六个牌号,重柴油有10、20、30三个牌号。    一般来讲,5#柴油适合于气温在8℃以上时使用;0# 柴油适用于气温在8℃至4℃时使用;-10#柴油适用于气温在4℃至-5℃时使用;-20#柴油适用于气温在-5℃至-14℃时使用;-35#柴油适用于气温在-14℃至-29℃时使用;-50#柴油适用于气温在-29℃至-44℃或者低于该温度时使用。

物理特性:    热值为3.3*10^7J/L;    沸点范围和黏度介于煤油与润滑油之间的液态石油馏分。易燃易挥发,不溶于水,易溶于醇和其他有机溶剂。是组分复杂的混合物,沸点范围:十六烷值;有 180℃ ~370℃ 和 350℃ ~410℃ 两类。    自吸泵的自吸高度,与叶轮前密封间隙、泵的转数、分离室液面高度等因素有关。叶轮前密封间隙越小,自吸高度越大,一般取为0.3~0.5毫米;在间隙增大时,除自吸高度下降外,泵的扬程、效率均降低。泵的自吸高度随叶轮的圆周速度u2的增大而增大,但到最大自吸高度时,转数增加而自吸高度就不再增加了,此时只是缩短自吸时间;当转数下降时,自吸高度则随着下降。在其它条件不变的情况下,自吸高度还随着储水高度的增加而增加(但也不能超过分离室的最佳储水高度)。为了在自吸泵中更好地使气水混合,叶轮的叶片须少些,使叶栅的节距增大;并宜采用半开式叶轮(或叶轮槽道较宽的叶轮),这样更方便于回水深入地射进叶轮叶栅中。

自吸泵大部分与内燃机配套,装在可移动的小车上,宜于野外作业。Self-priming pump self-priming height, and before the impeller seal clearance, the revolutions of the pump, separation chamber level and other factors.Before the impeller seal gap is smaller, the greater the self-priming height, general take 0.3 ~ 0.5 mm;Increase in clearance, in addition to the self-priming height decreased, pump lift and efficiency are reduced.The self-priming pump

自吸油泵的使用及维护The use and maintenance of self-priming pump

1 启动前的准备及检查事项1 to start preparing and check the item before

1.1 检查轴承体油腔中润滑油是否已达到规定要求,润滑油的油位应保持在机油尺的两刻线之间或油标中线位置,不得过多或不足.1.1 check whether oil bearing body cavity, the lubricating oil has reached the specified requirements, the lubricating oil in the oil level should be kept in the oil foot or oil standard midline position between two scribed line, not too much or not.

1.2 检查泵体内的储液是否高于叶轮边缘.如若不足,可以从泵体上的加液口直接向泵体内注入储液,不应在储液不足的情况下启动运转,否则泵体不能正常工作,且易损坏机械密封.1.2 check reservoir is higher than that of the impeller in the pump body. If not, can add liquid mouth from the pump body directly to the pump body into the reservoir, the defects in the reservoir should not start operation, under the condition of pump body can not work normally, and easy to damage the mechanical seal.

1.3 检查泵转动部件是否有卡住磕碰现象.1.3 check the pump rotating components for stuck knock against.

1.4 检查泵体底脚及各连接处有无松动现象.1.4 check the pump body foot and joint have loose phenomenon.

1.5 检查泵轴与原动机主轴的同轴度与平衡度.1.5 check the pump shaft and prime mover of main shaft alignment and balance.

1.6 检查进口管路是否漏气1.6 check whether import pipeline leak

1.7 打开吸入管道的阀门(注意不要全开)1.7 open the suction piping valves (be careful not to open)

2 启动及操作2 start-up and operation

2.1 启动油泵,注意泵轴的转向是否正确2.1 start the oil pump, pay attention to the steering pump shaft is correct

2.2 注意转动时有无异常噪音和振动2.2 notice there is no abnormal noise and vibration

2.3 注意真空表读数,启动后当压力表及真空表的读数经过一段时间的波动而时针稳定后,说明泵内已经上液,油泵竟如正常工作状体.2.3 pay attention to the vacuum meter reading, starts when the pressure gauge and vacuum gauge readings over a period of time after hour due to the variation of stable, explain within the pump has been on fluid, oil pump body become like a normal job.

2.4 在泵进入正常输油作业前,应特别注意泵内油温升高情况,如果这个过程长,泵内油温过高,则应停泵检查原因.2.4 before the pump into the normal oil operation, should pay special attention to pump the high oil temperature rise, if the process is long, inside the pump oil temperature is too high, you should stop the pump to check.

2.5 如果泵内温度过高而引起自吸困难.可暂时停机,利用出口管路中的液体倒流或直接向泵内补充液体,使泵内液体降温,即可启动.2.5 if the high temperature caused by self-priming pump difficult. Can temporarily stop, using the export pipeline fluid replacement in the liquid backflow or directly to the pump, cooling the liquid in the pump, can be started.

2.6 泵在工作过程中因故停泵,需在启动时,把出口控制阀稍开.这样既有利于自吸过程中其他从吐出口排出,又能保证泵在较轻的负荷下启动.2.6 pump in the process of work for pump stopped, at startup, the export control valve slightly open. This is beneficial to both other exported from spitting out during the process of imbibition, and can guarantee the pump starts under a lighter load.

2.7 泵每工作15-20小时或每次使用前应检查并及时补充一次10号机械油.2.7 pump every 15 to 20 hours or every time before the use should check and added a number 10 machine oil in time.

3 停车

3.1 关闭吐出管路上的闸阀

3.2 使泵停止转动

4 易损件的维护

4.3 机械密封:在不漏油的情况下,一般不应拆开检查,若轴承体下端泄漏口处产生严重泄露时,则应对机械密封进行拆检.装拆机械密封时,必须轻取轻放,注意配合面的清洁,不好好动、静环表面的光洁度,严禁敲击碰撞。

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