Manufacturers in the process of production is more concerned about the efficiency of equipment, diesel fire pump is the same.
In fact, the efficiency of the equipment is mainly affected by three factors, namely mechanical efficiency, volumetric efficiency and hydraulic efficiency, details are as follows:
Hydraulic loss includes hydraulic friction and local resistance loss. After the diesel engine fire pump runs for a certain time, it will inevitably cause the surface wear of impeller and guide vane, increase the hydraulic loss and decrease the hydraulic efficiency. Due to the blockage of filter cylinder, pipeline intake and other reasons, the equipment is evacuated and idled. Before the equipment is started,
the staff do not pay attention to the preparation work before the start, and the basic operating procedures such as heating, disk and perfusion are not standardized, often resulting in cavitation phenomenon, resulting in large noise, large vibration and low efficiency.fire pump china
The operating condition of the pump is lower than the rated condition, resulting in high energy consumption. Its own efficiency is the fundamental impact. Under the same working conditions, the efficiency of diesel fire pump may differ by more than 15%. The effect of mechanical efficiency is mainly related to design and manufacturing quality. After the selection, the late management has less impact. The motor efficiency remains basically unchanged in operation. Therefore, it is important to choose a motor with high efficiency.
Diesel engine fire pump volume loss, also known as leakage loss, including impeller seal ring, inter-stage, axial force balance mechanism three leakage losses. Volume efficiency is not only related to design and manufacturing, but also related to later management. After the continuous operation of the equipment for a certain time, due to the friction between the components, the gap is increased, and the volume efficiency is reduced.
Post time: Nov-02-2022