As a key link to ensure the safe start and stop of steam turbines, the jacking oil system is particularly important for the cleanliness management of its oil. Today Yoyik will introduce to you how to ensure the cleanliness of the jacking oil by selecting and maintaining the jacking oil filter element QF9732W25H1.0C-DQ.

The jacking oil system of the steam turbine is responsible for providing support for the rotor during startup, shutdown and warm-up to prevent damage to the shaft neck caused by gravity. Therefore, the cleanliness of the system directly affects the reliability and life of the equipment. The industry’s generally followed standards, such as NAS level 6 or higher, are set as the cleanliness target for the jacking oil. This means that the content of particulate contaminants larger than 5 microns in the oil must be controlled at an extremely low level to reduce wear, blockage and potential failure points.

Features and advantages of filter element QF9732W25H1.0C-DQ

QF9732W25H1.0C-DQ is a double filter element designed for the jacking oil system of steam turbines in power plants. It provides a filtration accuracy of at least 25 microns, effectively intercepts particulate impurities in the oil, and ensures the cleanliness of the oil. The filter adopts a double design, and the configuration of one in use and one in reserve ensures that the system operates uninterruptedly during maintenance or replacement of the filter element, maintaining the cleanliness of the oil circuit and the stability of the oil pressure.

The maximum working pressure of the filter element is 1.0MPa, which is suitable for high-pressure environments, and is made of durable materials to adapt to long-term continuous work.

In order to ensure that the cleanliness of the jacking oil system continues to meet high standards, the maintenance strategy for the QF9732W25H1.0C-DQ filter element includes:

• Regular inspection and replacement: Establish a strict monitoring mechanism, collect oil samples regularly for analysis, and replace the filter element in time according to the analysis results to avoid a decrease in cleanliness due to filter element saturation.
• Pressure monitoring: Use a pressure switch to monitor the pressure difference at both ends of the filter. When the preset threshold is reached, replace the filter element immediately to prevent oil pressure fluctuations caused by blockage.
• System sealing maintenance: Strengthen the sealing inspection and maintenance of the oil system to prevent the intrusion of external contaminants, and ensure that the new oil is strictly filtered and meets the system cleanliness requirements.
• Training and education: Organize professional training for operation and maintenance teams to enhance their awareness of the importance of cleanliness and the skills to properly maintain the filter element.
• Recording and analysis: Record the information of each filter element replacement, oil sample analysis and system maintenance in detail, optimize the maintenance cycle through data analysis, and improve management efficiency.

Cleanliness management of the jacking oil system is the basis for ensuring efficient and stable operation of the turbine. By scientifically selecting high-performance filter elements such as QF9732W25H1.0C-DQ and implementing effective maintenance strategies, power plants can significantly improve the reliability and economy of equipment, reduce the risk of unplanned downtime, and thus improve overall power generation efficiency and market competitiveness.

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