Core Anti-freezing and Start-up Guarantee Technical Measures for Rotary Drilling Rig Construction under Low Temperature in Winter

Scientific low-temperature start-up to avoid equipment start-up damage

The low temperature environment in winter is the main cause of start-up failures and wear of core components in rotary drilling rigs. At low temperatures, the viscosity of the engine oil increases, the temperature difference between the engine cylinder is large, and the circuit activity decreases, which easily leads to problems such as difficult start-up, unstable idle, and insufficient power. To ensure a smooth start-up of the equipment, it is necessary to prepare the entire machine for preheating before construction, and it is strictly prohibited to forcefully start the equipment at low temperatures. When parking equipment, prioritize choosing a sheltered and insulated area to avoid direct exposure to cold winds and frost outdoors. Before starting, warm water can be used to preheat the engine water tank, and open flames are prohibited from baking the body to prevent component deformation and aging. After starting, it is necessary to maintain idle warm-up for 3 to 5 minutes. After the oil and hydraulic oil circulation is smooth and the instrument data returns to normal, slowly load the operation to prevent high load construction at the moment of starting, minimize mechanical wear of the engine and transmission system, and ensure the stability of equipment starting in winter.

Optimal selection of hydraulic oil to ensure stable working conditions of the hydraulic system

The hydraulic system is the core power system of the rotary drilling rig, and the performance of hydraulic oil directly determines the construction efficiency and operation safety of the equipment. Under low temperature conditions, ordinary hydraulic oil is prone to solidification and poor fluidity, which can lead to insufficient hydraulic pressure, action lag, pump body wear and other faults. During winter construction, it is necessary to replace the suitable low-temperature specialized hydraulic oil according to the lowest temperature on the construction site, greatly improving the low-temperature fluidity and anti solidification performance of the oil. At the same time, regularly check the hydraulic oil level and quality, replace deteriorated, water containing, and turbid hydraulic oil in a timely manner, and avoid impurities and wear on hydraulic components caused by oil freezing. Before daily construction, the hydraulic system circulation preheating is completed by repeatedly extending and retracting the drill rod and adjusting the power head with no load, allowing the hydraulic oil to circulate fully, ensuring stable hydraulic pressure and sensitive equipment operation during the construction process, and preventing hydraulic system failures and shutdowns caused by low temperatures.

Implement pipeline antifreeze maintenance to prevent freezing cracking and leakage faults

Various types of pipelines such as oil pipes, water pipes, and gas pipes in rotary drilling rigs are small and dense, and low-temperature frost weather can easily cause pipeline icing, blockage, freezing cracking, and joint leakage problems, directly affecting the normal operation of equipment. Before and after daily construction, it is necessary to conduct a comprehensive anti freezing inspection of the entire pipeline, with a focus on protecting key parts such as hydraulic pipelines, cooling water pipelines, and fuel pipelines. Special insulation cotton and anti freezing sheaths can be used to wrap the pipeline and joint positions to isolate the invasion of low-temperature cold air. After work every day, it is necessary to thoroughly drain the remaining water in the equipment water tank and pipelines to prevent low-temperature water accumulation at night from freezing, expanding, and cracking the pipeline fittings. At the same time, regularly inspect vulnerable components such as pipeline joints, sealing rings, valves, etc., tighten loose joints in a timely manner, replace aging seals, avoid leakage faults caused by low-temperature embrittlement, and prevent pipeline freezing damage problems from the source, extending the service life of equipment accessories.

Standardize winter operation and maintenance habits, and establish long-term construction guarantees

In addition to core anti freezing and start-up measures, standardized winter equipment operation and maintenance habits are key to ensuring stable construction of rotary drilling rigs around the clock. In winter, it is necessary to shorten the equipment maintenance cycle and focus on checking the battery status. In low-temperature environments, the battery's storage capacity decreases, and it is necessary to charge and maintain it in a timely manner, clean electrode dust and debris, and ensure stable startup power supply. At the same time, take good care of the fuel system protection and use winter specific antifreeze diesel to avoid oil line icing and blockage. During the construction process, avoid prolonged idle or overloaded operation of equipment, and adapt to the operating characteristics of winter equipment. After work, clean the entire machine, remove frost and mud from the body, check the protective status of the machine, and park it in a sheltered and antifreeze manner. Systematic winter operation and maintenance can effectively adapt to low-temperature construction environments, significantly reduce equipment failure rates, and ensure efficient, safe, and stable operation of rotary drilling rigs during winter construction.