The wind power filter element, as a crucial component in wind power equipment, has its raw materials and technical parameters playing a vital role in ensuring the normal operation and extending the service life of the equipment. Below is a detailed analysis of the raw materials and technical parameters of wind power filter elements:
I. Raw Materials of Wind Power Filter Elements
The selection of raw materials for wind power filter elements is diverse, primarily determined by their working environment, filtration media, and performance requirements. Common raw materials for filter elements include:
Glass Fiber Filter Media: Possessing excellent filtration performance and chemical resistance, it is widely used for filtering hydraulic oil, emulsion, and other media.
Stainless Steel Woven Mesh: With good mechanical strength and corrosion resistance, it is suitable for filtration in high-pressure, high-temperature, and harsh environments.
Other Special Materials: Such as filter media from brands like LYDALL (Rand) from the USA, HV and J.C. Binzer oil-separating glass fiber from Germany, Ahlstrom and AK from South Korea. These materials typically offer higher filtration accuracy and longer service life.
II. Technical Parameters of Wind Power Filter Elements
The technical parameters of wind power filter elements are crucial indicators for evaluating their performance, mainly encompassing the following aspects:
Filtration Accuracy:
The key parameter measuring the filtration effectiveness of a filter element, typically expressed in microns (μm). Wind power filter elements have a wide range of filtration accuracy, from 1μm to 100μm, depending on specific application requirements.
Working Pressure:
An important indicator of the working stability of a filter element. Wind power filter elements can withstand a working pressure range of 21bar to 210bar, meeting the needs of most wind power equipment.
Operating Temperature:
Refers to the temperature range within which the filter element can operate normally. Wind power filter elements have a broad operating temperature range, from -40°C to +100°C, and some can even work at lower or higher temperatures.
Oil Cleanliness:
Indicates the cleanliness level of oil after filtration. Wind power filter elements can typically elevate the oil cleanliness from ISO4406-19/17/14 (Grade 8) to ISO4406-17/15/12 (Grade 6).
Filtration Efficiency:
Refers to the filter element's ability to retain impurity particles. Wind power filter elements often achieve a filtration efficiency of over 99.75%, effectively removing tiny particles and impurities from oil.
Initial Pressure Drop:
The pressure drop generated when the filter element starts working. Wind power filter elements typically have a low initial pressure drop to minimize the impact on system pressure.
Filter Element Replacement Alarm Differential Pressure:
The differential pressure at which the system issues an alarm signal for filter element replacement when clogging reaches a certain level. Wind power filter elements usually set this at around 3.5bar.
Bypass Valve Opening Pressure:
The pressure at which the bypass valve automatically opens to protect system pressure when filter element clogging causes pressure to rise to a certain level. Wind power filter elements typically set this at around 4bar.
Contaminant Holding Capacity:
Refers to the amount of impurity particles a filter element can hold before clogging. Wind power filter elements usually have a high contaminant holding capacity to maintain efficient filtration performance over an extended period.
In conclusion, the raw materials and technical parameters of wind power filter elements significantly impact their performance and service life. When selecting and using wind power filter elements, it is essential to choose the appropriate type and specification based on specific application requirements and working environments.
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