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煤矿井下主排水装置包括水泵、吸水管路及其附件,其作 用是将井下涌水排出。它不仅是保证矿井安全生产的固定设备,而且由于单机连续运行时间长、功率大,又是煤矿耗电设备之一。因此,提高煤矿井下主排水泵系统效率,保持设备经济运行,对节约电能、降低生产成本提高经济效益具有重要意义。 1 延长水泵的高效运转状态 新泵或大修泵投入使用后能维持高效的时间很短。据统计,D型离心式清水泵能维护70％以上效率的时间仅有600h左右。造成其效率很快降低的主要原因是气蚀和磨损,因此可通过加强维修减少泵中各种损失来延长高效运行时间。
The main underground mine drainage devices include pumps, suction pipes and their accessories, its role is to discharge underground wells. It is not only a fixed equipment to ensure mine safety production, but also because of single long continuous operation time, power, but also one of coal mine power equipment. Therefore, to improve the efficiency of the main drainage pump system and maintain the economic operation of the equipment in the coal mine is of great significance to save electricity, reduce production costs and increase economic benefits. 1 to extend the efficient operation of the pump new pump or overhaul pump to maintain high efficiency after a very short period of time. According to statistics, D-type centrifugal water pump can maintain the efficiency of more than 70% of the time only about 600h. The main cause of this rapid decrease in efficiency is cavitation and wear and tear, which can result in high operating hours by enhancing maintenance and reducing pump losses.