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中原油田多为野外全天侯连续作业,柴油机润滑系统易出现故障,操作者又往往不能及时发现,因机油压力低或机油漏失引发的机械事故时有发生。若购置进口保护装置,其结构复杂、价格昂贵,不适于普通石油机械的改进。为此我们开发了一种润滑系统低压自动保护装置。1.结构与原理柴油机润滑系统低压自动保护装置原理如附图所示,它主要由压力继电器、常通式电磁继电器和常通式供油控制阀(二位三通电磁阀)组成。压力
The Zhongyuan Oilfield is mostly operated continuously in the field all day long. The diesel engine lubricating system is prone to failure, and operators often can not find out in time. Mechanical accidents caused by low oil pressure or oil leakage have occurred from time to time. If the purchase of imported protection device, its structure is complex, expensive, not suitable for the improvement of ordinary petroleum machinery. To this end we have developed a low-pressure lubrication system automatic protection device. 1. Structure and Principle Diesel engine lubrication system low-voltage automatic protection device principle as shown in the figure, it is mainly by the pressure relay, normally-on electromagnetic relay and often through the oil supply control valve (two three-way solenoid valve). pressure