上海宝钢20冶吊运公司1979年进口的NK-800型汽车吊蓄能器已失效,吊车不能工作。为保证工程需要,决定选用国产蓄能器代替进口,吊车原蓄能器容量为3 L,最大耐压力为 210kg/cm~2约为21MPa,国内蓄能器系列产品中相近容量只有2.5L、4L等规格,通过比较选用NXQ-4/315型国产蓄能器(容量为4 L,最大耐压力为 31.5MPa),从容量和压力上来看是可以使用的。由于外型尺寸不合规格,经过测量,将原底座做了修改,装车调试后使用效果 20 Baosteel lifting and conveying company in 1979 NK-800 truck crane imported accumulator has lapsed, the crane can not work. In order to ensure the project needs, decided to use domestic accumulators instead of imports, the original crane accumulator capacity of 3 L, the maximum pressure of 210kg / cm ~ 2 about 21MPa, the domestic accumulator products similar capacity of only 2.5L, 4L and other specifications by comparing the use of NXQ-4/315-type domestic accumulator (capacity of 4 L, the maximum pressure of 31.5MPa), from the point of view of capacity and pressure can be used. As the appearance of substandard size, after measurement, the original base has been modified, after loading debugging effect