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本文针对东风_4型机车16V240ZJ型柴油机保护装置中的差示压力计的误动作问题,具体说明随着该型机车的型式变化,使机械间负压增加,对差示压力计的正常工作产生不同程度的影响。并将有关部门所采取的改进方案,结合实际运用进行了比较。比较和分析结果表明:采用稳压箱式结构的差示压力计为实用可靠的最佳方案。且针对该方案的改进,提出了检修和运用中应注意的实际问题和有关建议。
This article aims at the malfunction of the differential pressure gauge in the DF4_4 locomotive 16V240ZJ diesel engine protection device, and specifies that with the change of the type of the locomotive, the negative pressure between the machines increases, and the normal working of the differential pressure gauge Different degrees of influence. And the relevant departments to adopt the improvement program, combined with the actual use of a comparison. The results of comparison and analysis show that the differential pressure gauge with surge tank structure is the most practical and reliable solution. In view of the improvement of the scheme, the practical problems that should be paid attention to in the overhaul and application are put forward and the related suggestions.