Layout of Fuel System Pipelines for Diesel Generator Sets

The function of the fuel supply system of a diesel generator set is to store, filter, and transport fuel. Therefore, the layout of the fuel system pipeline on the outside should be designed reasonably, generally meeting the following basic requirements:

1. Install a diesel filter or oil-water separator on the fuel inlet pipeline.

2. During shutdown, the fuel system should not rely on pressure to allow diesel to flow into the diesel engine through pipelines.

3. The connection between the fuel pipe and the return pipe should not cause any impact on the fuel in the pipe.

4. The fuel tank must have ventilation holes to allow air to separate from the fuel from the unsealed fuel tank, and the ventilation holes must prevent dust and water from entering the fuel tank.

5. The material of the fuel pipeline should meet the requirements, generally avoiding the use of galvanized pipes. Seamless welded pipes or purple copper pipes can be used, and their inner cavity should not be smaller than the diameter of the engine inlet and outlet.

6. The return pressure of fuel should not exceed the specified value in the performance requirements of the diesel engine being used.

7. The fuel pipeline of diesel generator sets should be treated with anti-static measures.

8. After the installation of the fuel pipeline, it should be cleaned and leak proof checked, and the air in the pipeline should be drained.

We know that the fuel supply system of a common diesel generator set usually consists of a daily fuel tank, a large storage tank, an auxiliary fuel pump, a fuel filter, and fuel pipes. Therefore, in order for the fuel system of a diesel generator set to work properly, a reasonable fuel pipeline layout is not enough, and the fuel tank must also meet relevant requirements:

1. Use low-carbon steel or black iron materials to avoid galvanized joints, pipes, and fuel tanks;

2. The fuel tank can be installed above or below the ground, but the highest fuel level should not exceed the height of the engine injector to avoid the possibility of fuel leakage to the cylinder.

3. Ensure that water and sediment are regularly drained from the bottom of the fuel tank.

4. A water pump can be used to regularly drain water from the bottom of the underground fuel tank.

5. The fuel tank vent can release the air pressure generated by refueling and prevent vacuum phenomenon during fuel consumption.

The reasonable selection of fuel tanks and the layout of fuel pipelines for diesel generator sets are the key to ensuring the normal operation of diesel generator sets

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