The fire-resistant oil filter element FAX-400×10 is a high-efficiency filter component designed for hydraulic systems and is commonly used in the fire-resistant oil circulation system of large mechanical equipment such as steam turbines. The main function of this type of filter element is to remove impurities in the circulating fire-resistant oil in the system, including metal debris, sediments and other contaminants, to protect the precision hydraulic components from damage, maintain the cleanliness of the system, and thus ensure the stable operation of the equipment and extend its service life.

Regarding the replacement cycle setting of the filter element FAX-400×10 in the fire-resistant oil system of the power plant, there is usually no unified standard, because the replacement cycle will be affected by many factors, including but not limited to the quality of the fire-resistant oil, the system operating conditions, the actual working conditions of the filter element, the system load and previous maintenance experience. However, in general, the setting of the replacement cycle will be based on the following principles:

1. Manufacturer recommendation: The first reference is the recommended replacement cycle of the filter element manufacturer, which is usually based on the design life and experimental data of the filter element.

2. System monitoring data: The filter element blockage is judged by real-time monitoring of the change in the pressure difference before and after the filter element. When the pressure difference reaches 1.5 times the initial pressure difference or the limit value recommended by the manufacturer, it usually means that the filter element is close to its maximum filtering capacity and needs to be replaced.

3. Oil analysis results: Regular oil analysis is also an important basis for determining the replacement cycle. The increase in particulate matter content in the oil and the decline in oil quality may indicate a decrease in filter element efficiency.

4. System operating conditions: Under high load, high temperature or severe pollution operating environment, the filter element may need to be replaced more frequently.

5. Preventive maintenance plan: Many power plants will set a fixed inspection and replacement cycle based on the principle of preventive maintenance, such as replacement every six months or every year, even if there are no obvious signs, to ensure system reliability.

Although the specific replacement cycle needs to be flexibly adjusted according to actual conditions, power plants usually combine the above factors to develop a maintenance plan that meets system requirements and ensures economy. In actual operation, experienced engineers will make more accurate judgments based on the system’s historical data, current operating conditions and the actual performance of the filter element.

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