hydraulic orbital motor with its unique advantages, in agriculture, fishery, light industry, lifting and transportation, mining and construction machinery and many other areas of the rotary mechanism occupies an important position. However, in the actual use of the process, some users feedback equipment bubble phenomenon, which is what causes it? Next, we will explore in depth.
The core causes of air bubbles:
1. Poor sealing of the hydraulic system or oil level is too low:
Insufficient oil level in the tank: When the oil level in the hydraulic tank is too low, the hydraulic oil returning from the system will impact the surface of the tank, and air will be drawn into the formation of a large number of air bubbles.
Pipeline or pump inlet leakage: into the oil pipe or hydraulic pump suction port if there is a poor seal (air leakage), the external air will be sucked into the internal hydraulic circulatory system, resulting in the generation of air bubbles.
2. Pressure changes lead to the precipitation of dissolved gases:
Hydraulic oil will inevitably dissolve a small amount of air during transportation and filling. At atmospheric pressure, these gases are suspended or dissolved in the oil in the form of tiny bubbles, which usually do not affect the physical properties of the oil. However, when the amount of dissolved gas is close to saturation of the hydraulic oil flow through the system within the narrow channel (such as relief valve) or pump suction port, due to the sudden drop in local pressure, the original dissolved in the oil due to the reduced solubility of the gas precipitation. These precipitation of gas gradually gathered, merged, and eventually formed a larger bubble visible to the naked eye.
3. Hydraulic fluid itself contains gas:
Hydraulic fluid is inevitably mixed with a small amount of air during production, storage or handling if it is carried out in an atmospheric pressure environment. These gases initially present in the fluid are also a source of air bubbles during system operation.
In summary, hydraulic orbital motor operation bubbles, mainly from the hydraulic oil tank oil level is too low, suction line sealing is not tight resulting in air intrusion; system pressure drop triggered by the precipitation of dissolved gases; as well as the hydraulic fluid itself contains trace gases. To effectively prevent air bubbles, you can check and ensure that the oil level is sufficient, investigate and repair all potential suction side air leaks, use qualified hydraulic fluid with low gas content, and optimize the system design to reduce pressure fluctuations.
For more in-depth technical details or to encounter specific problems, you can pay attention to the subsequent relevant technical articles or consult professional technical personnel.
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