Abnormal of Pressure Difference of Duplex Filter LX-FM1623H3XR in Lubricating Oil Station

In the operation of industrial equipment, the stability of the lubrication system is directly related to the safety and efficiency of the equipment. As a key power equipment, the duplex filter element LX-FM1623H3XR in the lubricating oil station of the feed pump turbine bears the core function of filtering impurities and ensuring the cleanliness of the oil. The design of the double filter element ensures the continuity of the system and improves the filtration efficiency by running in parallel. However, in actual operation, if the pressure difference between the double filter elements is abnormal, it often indicates potential operating risks or equipment failures. This phenomenon not only requires the attention of the technical team, but also puts higher requirements on the maintenance strategy of the equipment.

I. The structure and operation principle of the double filter element

The duplex filter LX-FM1623H3XR consists of two independent filter units in parallel, which are operated alternately by switching valves. Under normal operating conditions, the pressure difference between the two filter elements should be kept in a relatively balanced range to ensure filtration efficiency and system stability. When the pressure difference of one of the filter elements increases due to the accumulation of impurities, the system will automatically switch to the spare filter element to avoid the risk of downtime caused by blockage. This design is particularly important in lubricating oil stations, because tiny particles or contaminants in the oil may cause wear on the precision parts of the turbine and even cause major safety accidents.

II. Causes and effects of abnormal pressure difference

During the operation of the duplex filter element LX-FM1623H3XR, the pressure difference is an important indicator to measure the status of the filter element. If the pressure difference between the two filter elements exceeds 0.05MPa, it usually indicates the existence of the following problems:

1. Uneven filter element contamination

The design of the duplex filter element requires the two filter units to work under the same conditions. If the pressure difference is abnormal, it may be because the contaminant accumulation rate of one filter element is much faster than that of the other. This situation may be caused by uneven particle distribution in the oil, differences in the installation position of the filter element, or inconsistent performance of the filter medium. For example, if there is local wear or corrosion in the upstream pipeline, it may cause the filter element on one side to bear more impurity load, thereby accelerating clogging.

2. Degradation of filter element performance

After long-term operation, the filtration efficiency of the filter element will decrease due to material aging or structural deformation. If there are differences in the manufacturing process or material quality of the duplex filter, the service life of the two filter elements may be out of sync. For example, if the porosity of one filter element decreases faster while the other still maintains a high permeability, this performance imbalance will directly reflect the expansion of the pressure difference difference.

3. System fluid dynamic imbalance

The flow distribution of the lubrication station is crucial to the operation of the duplex filter element LX-FM1623H3XR. If the system design is unreasonable or the valve opening is improperly adjusted, the flow distribution of the two filter elements may be uneven. For example, the inlet of one filter element has a large resistance due to the pipe elbow or valve, resulting in a reduced flow, while the other filter element is subjected to a higher flow load. In this case, even if the initial performance of the two filter elements is the same, the pressure difference will be abnormal due to the load difference.

4. Interference from external environmental factors

Temperature, pressure fluctuations or changes in oil quality may also indirectly cause pressure difference imbalance. For example, the decrease in oil viscosity in a high temperature environment may cause the overall pressure difference of the filter element to decrease, but if the temperature resistance of the two filter elements is different, the pressure difference difference may be amplified. In addition, when water or chemical additives are mixed into the oil, the morphology and deposition characteristics of the pollutants may be changed, further exacerbating the performance differences between the filter elements.

III. Countermeasures for abnormal pressure difference

For the problem of abnormal pressure difference of the duplex filter element LX-FM1623H3XR, it is necessary to start from three aspects: equipment selection, operation monitoring and maintenance management:

1. Optimize equipment selection and installation

When selecting a duplex filter element, ensure that the model, material and filtration accuracy of the two filter elements are completely consistent, and strictly follow the manufacturer’s installation specifications. For example, the duplex filter element of the LX-FM1623H3XR model needs to be checked for sealing during installation to avoid flow leakage or pressure loss caused by poor sealing. In addition, the pipeline layout should be as symmetrical as possible to reduce the pressure difference imbalance caused by fluid dynamics differences.

2. Strengthen operation monitoring

Pressure difference monitoring is the core link of the operation management of the duplex filter element. By real-time monitoring of the inlet and outlet pressure difference of the two filter elements, abnormal fluctuations can be discovered in time. For example, when the differential pressure exceeds 0.05MPa, the filter status, oil quality and system flow distribution should be checked immediately. Some advanced lubricating oil stations have introduced automated control systems, which trigger alarms or automatic switching functions by setting differential pressure thresholds, thereby reducing the risk of manual operation.

3. Standardize maintenance processes

Regular cleaning or replacement of oil filter elements is a key measure to prevent abnormal pressure differences. For duplex filter elements, the maintenance cycle recommended by the manufacturer must be strictly followed, and the differential pressure data for each maintenance must be recorded. For example, when cleaning the filter element, a special cleaning agent should be used to remove contaminants to prevent residues from clogging the filter medium. In addition, maintenance personnel need to check the integrity of the filter element. If the filter screen is damaged or the seal is aged, it should be replaced in time to prevent oil leakage or secondary contamination.

4. Improve oil quality

The cleanliness of the oil directly affects the operating life of the duplex filter element. It is recommended to add pretreatment equipment (such as a magnetic filter or a centrifugal separator) before the lubricating oil station to remove large particles and iron filings. At the same time, the viscosity, moisture content and acid value of the oil are regularly tested to ensure that it meets the equipment operation requirements. For example, if water is mixed into the oil, it may cause emulsification, which in turn accelerates the clogging of the filter element and causes pressure difference abnormalities.

The role of the double filter element LX-FM1623H3XR in the feed pump turbine lubricating oil station is irreplaceable, and its pressure difference state directly reflects the health level of the system. When the pressure difference exceeds 0.05MPa, scientific diagnosis and systematic maintenance strategies are required to eliminate potential risks in a timely manner. By optimizing equipment selection, strengthening operation monitoring and standardizing maintenance processes, the service life of the double filter element can be effectively extended to ensure the safe and efficient operation of the turbine.

When looking for high-quality, reliable duplex filters, YOYIK is undoubtedly a choice worth considering. The company specializes in providing a variety of power equipment including steam turbine accessories, and has won wide acclaim for its high-quality products and services. For more information or inquiries, please contact the customer service below:
E-mail: sales@yoyik.com
Tel: +86-838-2226655
Whatsapp: +86-13618105229

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