Circulating oil pump oil-return flushing filter element DP405EA01V/-F is a filter element used in the return oil flushing system of the circulating pump on the steam turbine. Its main function is to filter solid particles and impurities in the return oil to ensure the cleanliness of the return oil and the normal operation of the circulating pump. The following is a specific description of the working principle and usage process of the filter element:

Working principle of Circulating oil pump oil-return flushing filter element DP405EA01V/-F

The filter element is composed of multiple layers of filter materials, usually including cellulose, stainless steel mesh, etc. Through different levels of filtration accuracy, particles and impurities of different sizes can be effectively filtered. When the return oil passes through the filter element, solid particles are trapped on the filter material by the filter element, and the clean return oil is sent back to the circulating pump supply system.

Usage process:

Installation: The filter element DP405EA01V/- F is usually installed in the circulating pump return oil flushing system of the steam turbine, and the specific position is determined according to the equipment design. Before installation, it is necessary to ensure that there is a good seal between the filter element and the filter holder to prevent oil from bypassing the filter element and flowing directly through it.

Operation monitoring: During the operation of the steam turbine, the filter element continuously filters the return oil, intercepting particles and impurities, and maintaining the cleanliness of the return oil. The working status of the filter element can be determined by monitoring the differential pressure change of the filter element. An increase in differential pressure usually means an increase in resistance of the filter element, which requires maintenance or replacement.

Cleaning and replacement: After a period of use, the filter element will gradually accumulate enough solid particles and impurities, leading to an increase in the resistance of the filter element. At this point, the filter element can be cleaned or replaced to restore its filtering effect. The specific cleaning and replacement cycle should be evaluated based on factors such as turbine operation and return oil quality, and a maintenance plan should be developed.

Replacement steps: When replacing the filter element DP405EA01V/- F, the relevant valves of the return oil flushing system should be closed first to avoid hydraulic system pressure causing the filter element to splash. Then, disassemble the filter element and filter holder, clean or replace the filter element. After installation, the system should be started and inspected according to the correct procedures to ensure the normal operation of the filter element.

 

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DFYLSYC-2023-06-21-A