During the operation of turbines (steam turbines, gas turbines, etc.), turbine oil is an important medium for lubrication, cooling and energy transfer, and its cleanliness directly affects the operating efficiency and life of the equipment. However, turbine oil will deteriorate in performance due to oxidation, water intrusion, particulate pollution and other reasons during long-term use. For this reason, the vacuum coalescing oil purifier is the core equipment for oil purification, and its filter element performance directly determines the purification effect. Among them, the ZJT-50Z06707.63.08 coalescing filter element is a key component of the vacuum coalescing oil purifier dedicated to turbine oil, and its pressure difference balance control technology is the core element to ensure the stable operation of the equipment.

1. Design features of the ZJT-50Z06707.63.08 filter element

The filter element is specially designed for the high-precision purification needs of turbine oil. It adopts a multi-layer composite structure and combines vacuum coalescing technology to simultaneously remove moisture, gas and tiny particles in the oil. Its differential pressure balance control is mainly achieved through the following designs:

1. Gradient pore structure

The ZJT-50Z06707.63.08 oil purifier filter element adopts a gradient pore design from the outside to the inside. The outer layer is a coarse filter layer for intercepting larger particles; the middle layer is a coalescence layer, which promotes the coalescence of tiny water droplets through special fiber materials; the inner layer is a fine filter layer to further remove residual impurities. This layered structure can gradually reduce the oil flow rate and avoid sudden increase in local pressure difference.

2. Intelligent bypass valve design

The filter element has a built-in pressure-sensing bypass valve. When the inlet and outlet pressure difference exceeds the set threshold, the bypass valve automatically opens, and part of the oil directly enters the next process to prevent the filter element from being damaged due to overload. At the same time, the opening threshold of the bypass valve can be adjusted according to the actual working conditions to ensure that the pressure difference is always within a safe range.

3. Material and process optimization

The filter element is made of a high-strength glass fiber and polyester fiber composite material, which has both high dirt holding capacity and compressive strength. In addition, the surface of the filter material is hydrophobic, which can reduce the adhesion of water on the surface of the filter element and avoid abnormal increase in pressure difference due to water retention.

2. Control logic of differential pressure balance

The differential pressure balance control of the ZJT-50Z06707.63.08 filter element is a dynamic adjustment process, combining mechanical structure and intelligent monitoring technology to achieve precise management:

1. Real-time monitoring and feedback

During the operation of the oil purifier, the differential pressure sensor monitors the inlet and outlet pressure difference of the filter element in real time and feeds the data back to the control system. When the differential pressure approaches the preset upper limit, the system automatically triggers an early warning signal to prompt maintenance personnel to check the filter element status or adjust the operating parameters.

2. Flow regulation technology

The oil flow rate is dynamically adjusted by frequency conversion to control the oil pump speed of the oil purifier. When the differential pressure increases, the pump speed is reduced to reduce the amount of oil per unit time, thereby reducing the load on the filter element; conversely, when the differential pressure is low, the pump speed is increased to improve the purification efficiency.

3. Vacuum coalescence coordinated control

Vacuum coalescence technology accelerates the separation of water and gas in the oil through a negative pressure environment. The coordinated control of the filter element pressure difference and vacuum degree can optimize the separation efficiency. For example, when the pressure difference increases, the vacuum degree is appropriately increased to accelerate the evaporation of water and reduce the impact of oil viscosity on the pressure difference.

3. Application scenarios and advantages

The pressure difference balance control technology of the ZJT-50Z06707.63.08 filter element is widely used in the oil purification system of turbine units in the fields of power, chemical industry, and shipbuilding. Its advantages are reflected in the following aspects:

Extend the service life of the filter element: By dynamically adjusting the pressure difference, the replacement cycle of the filter element can be extended by 30%-50%, reducing maintenance costs.

Improve purification efficiency: The pressure difference balance ensures the uniform flow of oil in the filter element and avoids the blind spot of filtration caused by local blockage.

Adapt to complex working conditions: When the oil viscosity fluctuates (such as low temperature start-up or high temperature operation), the pressure difference can still be maintained to ensure the purification effect.

Energy saving and environmental protection: Reduce energy waste caused by excessive pressure difference, and reduce the amount of filter element waste.

The differential pressure balance control technology of the vacuum coalescing filter element ZJT-50Z06707.63.08 for turbine oil is a deep integration of mechanical design, material science and intelligent control. It not only solves the pain points of easy clogging and short life of traditional filter elements, but also provides reliable guarantee for the safe and efficient operation of turbine units.

When looking for high-quality, reliable steam turbine oil 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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