In the self-check mode of diesel engine fire pump, constant speed self-inspection and low-speed self-inspection have played a certain role in the maintenance of fire pump. From the point of view of maintenance management, they can be used in fire water supply system. Relatively speaking, the constant speed self-check can reflect the actual operating condition of fire pump.
From the point of view of the fire pump failure, the failure of the fire pump for a long time is mainly the occluse problem of the shaft of the pump unit. It is not very important to emphasize the operation of the full operating condition of the fire pump. It is suitable for the fire pump to absorb water from the fire pump, and the layout of the pipeline should be considered reasonably. There are some problems in the operation, which can cause overpressure soon, which is not suitable for engineering. And the method of constant speed self-check and low speed self-check have their own characteristics. Although the low-speed self-checking mode is not comprehensive to the operation of the fire pump, the design of the diesel fire pump pipeline has no special requirements, which can be applied to the technical requirements of the self-inspection of the fire pump. It is more suitable for the fire pump directly from the municipal pipe network.
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