Views: 79 Author: Site Editor Publish Time: 2025-12-03 Origin: Site
The first step in the unit installation plan should be to select the installation location of the unit (1.2 Storage requirements are the most basic reference requirements for selecting the equipment room); usually, the selection of the installation location is mostly based on the convenience of use, the economy of power distribution connection, and the facilitation of the use and maintenance of the unit.
Ensure that the air intake and exhaust in the equipment room are smooth. The hot air discharged by the radiator must be guided out of the equipment room and prevented from flowing back.
There should be sufficient space around the diesel generator set to facilitate cooling, operation, maintenance and repair of the unit. Generally speaking, no other objects are allowed within at least 1-1.5 meters around the unit and 1.5-2 meters above it.
Ensure the unit is protected from damage caused by rain, sunlight, wind, overheating, freezing, etc.
Flammable and explosive objects are prohibited around the unit.
1.4.1 Foundation
The base for fixing the diesel generator set is very important and must meet the following requirements:
1. Support the weight of the entire unit and the dynamic impact load generated by the unbalanced force during the operation of the unit;
2. It has sufficient hardness and stability to prevent deformation from affecting the concentricity of the diesel engine and the main alternator;
3. The foundation should be as flat and smooth as possible;
4. Where conditions permit, a sewage discharge groove can be reserved to allow timely drainage of wastewater, oil stains, etc. A cable trench for the generator's power distribution output should also be reserved.
Generally, a concrete installation foundation is a reliable and simple installation method, and it is recommended that users prioritize its use. When pouring the concrete base, ensure that the surface of the concrete is flat and free from any damage. It is advisable for users to use a level or similar instruments for the installation of the unit and its exhaust system.
Generally speaking, the height of the concrete platform for a diesel generator set only needs to be between 100-200mm. The subsoil used to make the concrete platform must also have sufficient bearing strength to withstand the total weight of the entire device and the concrete foundation on it.
For the installation and arrangement of the diesel generator set, please refer to the unit installation diagram.
1.4.2 Vibration Damping
When installing a diesel generator set, it is recommended that users use shock absorbers. Users should, according to the mounting holes on the unit's chassis and with reference to the unit installation diagram, correctly place the unit on a flat and solid foundation via the shock absorbers (the shock absorbers only need to be fastened to the concrete foundation with expansion bolts). This can effectively reduce the vibration and impact of the unit on the building during operation. Therefore, unless there are special requirements, it is not recommended to take additional shock absorption measures on the foundation.
In addition to the installation of the unit and the foundation through shock absorbers, the connections between other components of the unit and the outside should also be made through flexible connections. For example, the smoke exhaust pipe is connected with a corrugated shock absorber pipe, and the exhaust duct, fuel inlet pipe, return pipe, power distribution cable, etc., should also be connected through flexible connections. Only in this way can the vibration generated by the operation of the unit on surrounding objects be minimized.
1.4.3 Ventilation
When a unit with an integral radiator is installed in a machine room, the most basic principle is to exhaust the hot air in the machine room out of the room and introduce the low-temperature air outside the machine room into the room.
The right figure shows the ideal positional relationship between the generator set and the engine room wall. Its purpose is to obtain cold air from the lowest possible point, force it through the radiator fins, and then expel it from the engine room.
The effective flow cross-sectional area inside the air guide hood should be greater than 1.25 times the front area of the radiator core, and the air guide hood should be smooth with few sharp bends to reduce air guide resistance. Similarly, the effective flow cross-sectional area of the air inlet should also be greater than 1.25 times the front area of the radiator core.
When users install protective nets, shutters, or components with large or numerous bends at the air inlets and outlets, the effective circulation cross-sectional area will decrease and the resistance will increase. Therefore, it is necessary to further increase the circulation area.
The intake temperature of the engine should be lower than 40°C. If the intake temperature remains higher than this value, the output power of the engine will decrease. Therefore, it is necessary to timely introduce fresh air from outside the engine room to provide intake air for the engine.
For engines equipped with a thrust fan, it is advisable to use a separate pipe to exhaust the waste gas from the crankcase out of the engine room. Otherwise, the crankcase exhaust gas will deposit on the radiator, causing dirt to adhere to the radiator and leading to blockages, thereby reducing the heat dissipation capacity.
