The Causes of Overheating in The Hydraulic System of Rotary Drilling RIGS

The hydraulic system of a rotary drilling rig is the "power center" for the operation of the equipment. Its normal operating temperature is generally between 30 and 80 degrees Celsius. Heating beyond this range will accelerate the aging of components and reduce operational efficiency. The following are six common causes of overheating in hydraulic systems.

1. Improper selection of hydraulic oil: If hydraulic oil with incorrect viscosity or substandard quality is used, it will increase the flow resistance of the oil, resulting in energy loss being converted into heat. The specified type of hydraulic oil must be selected strictly in accordance with the equipment manual.

2. Abnormal fuel level in the fuel tank: When the fuel level is insufficient, the fuel circulation speed increases and the heat dissipation time shortens. Excessive oil will result in insufficient heat dissipation area, both of which can cause the system to heat up.

3. Wear of hydraulic components: When components such as pumps, valves, and cylinders wear out, the internal leakage increases, high-pressure oil is converted into heat energy, and at the same time, symptoms such as unstable pressure occur.

4. Cooling system failure: Clogged radiators, failed cooling fans or insufficient coolant can lead to a decrease in heat dissipation capacity and prevent the heat generated by the system from being removed in a timely manner.

5. Excessive system pressure: The set pressure of the relief valve exceeds the actual demand. The excess pressure is converted into heat through the relief valve. Long-term high-pressure operation will continuously intensify the heat generation.

6. Harsh operating conditions: When working under heavy loads, continuous operations or high-temperature environments, the load on the hydraulic system increases, and the heat generation rate exceeds the heat dissipation rate, which can easily lead to overheating.

The overheating of the hydraulic system of a rotary drilling rig is the result of multiple factors working together. It is not only a problem with the equipment itself but also related to operation and maintenance. On a daily basis, it is necessary to conduct regular oil checks, component maintenance and cooling system upkeep, and arrange the working conditions reasonably. Only in this way can heating faults be effectively prevented and the efficient operation of the equipment be guaranteed.