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What are the applications of diesel fire pumps?

Diesel engine fire pump has high efficiency, long operating life and high reliability. It can be used in independent fire water supply system, some can be used in fire protection and domestic common water supply system, and it can also be used in construction, municipal, industrial and mining, water supply and drainage, ships, field operations, etc.

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The characteristics of diesel engine fire pumps are summarized as follows:
1. The diesel engine fire pump adopts the domestic first direct connection technology between the diesel engine and the water pump through an elastic coupling, which reduces the failure points, greatly shortens the starting time of the unit, and increases the reliability and emergency performance of the unit.
2. Automatic alarm protection for diesel engine low oil pressure, high water temperature and other faults, alarm and stop when over speed.
3. The diesel engine fire pump has the functions of remote measurement, remote signaling and remote control.
4. The battery can be automatically charged by the mains or diesel charging motor to ensure the smooth start of the unit.
5. Automatic preheating, so that the diesel engine is in the standby state of the hot engine to ensure emergency work.
6. The biggest difference between the diesel engine fire pump and the electric water pump is that it has its own independent power supply system—battery. Therefore, the start-up and operation of the diesel engine fire pump can be completely separated from the mains.
7. The diesel engine fire pump is usually used as a backup facility. Therefore, it will only start automatically when the fire signal comes, and the electric water pump fails or the power supply is cut off. When it has a device for starting the pump at ultra-low pressure, its matching electric water pump control cabinet should also have a device for starting the pump at ultra-low pressure, and the lower limit of the two pumps should have a certain pressure difference.

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    Generally speaking, we recommend that where natural ventilation is used to install diesel engine fire pumps, there must be vents and exhaust ports of sufficient size, and the position of the vents ensures that there is enough fresh air to supply the diesel engine for combustion within the temperature limit. Of course, the water supply radiator can also be used to take away the heat of the circulating cooling water and the heat emitted from the surface of the unit. If the space cannot meet the requirements of natural ventilation and cannot effectively dissipate heat, it is recommended that you adopt forced ventilation, install an intake fan and an exhaust fan at the vent, and choose a location that can provide enough cold air for the diesel engine and take away the machine room hot air inside. Generally speaking, the air intake of the unit should be 6-7 times that of the diesel engine. Only in this way can normal ventilation be ensured and the operating efficiency of the equipment can be improved.

    In addition, it must be fixed firmly so that the entire unit can be supported to ensure that the unit is in a horizontal state and absorb vibration. Generally speaking, the foundation of the unit adopts a concrete structure. The length and width are 150-250mm on one side of the length and width of the unit chassis, and the depth is 300-600mm. The height of the anchor bolts should be about twice the bolt diameter. And there should be a 750mm channel on both sides and front of the unit to facilitate the operator’s inspection and general maintenance.