山田 英樹

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  • in reply to: What diagnostic techniques are used for OLTCs? #132225

    Techniques include thermographic analysis, vibration monitoring, oil testing, and dynamic resistance measurement for detecting issues.

    Capacity depends on tank sizes, pump efficiency, mill capability, and system automation. Larger plants handle higher volumes, while smaller units suit local production needs.

    Regulations include VOC limits, environmental protection laws, and safety standards for handling and storage. Compliance with ASTM, AASHTO, and regional environmental guidelines ensures safe use.

    Factors include aggregate type, temperature, pH, and emulsion formulation. Adjusting these parameters ensures the emulsion breaks at the right time, optimizing adhesion and performance.

    Waste polymers, such as recycled plastics (e.g., polyethylene, polypropylene), are incorporated into bitumen to improve properties like elasticity, stiffness, and resistance to deformation. This utilization not only enhances pavement performance but also promotes environmental sustainability by recycling waste materials and reducing landfill usage.

    in reply to: How is emulsified asphalt produced, and where is it used? #131251

    Emulsified asphalt is produced by dispersing bitumen in water with emulsifying agents (surfactants) under mechanical agitation. The resulting emulsion is used in applications like tack coats, chip seals, slurry seals, and cold mixes, where lower application temperatures and rapid setting are beneficial.

    Key components include a colloid mill, storage tanks for bitumen and emulsifiers, heating systems, dosing pumps, and control systems for monitoring production parameters.

    Polyethylene modification increases the stiffness and high-temperature performance of bitumen. It enhances resistance to deformation (rutting) and can improve thermal stability, making the asphalt suitable for heavy traffic conditions and high-temperature environments.

    Hello! How can I assist you today? If you have questions about silica gel regeneration or related topics, feel free to ask!

    in reply to: How is activated carbon used in oil bleaching? #122844

    Activated carbon is used in oil bleaching to remove organic compounds, color pigments, and traces of impurities. It works by adsorbing these substances onto its highly porous surface. Activated carbon is particularly effective in removing polycyclic aromatic hydrocarbons (PAHs) and improving the overall clarity of the oil.

    Recent advancements in condensate polishing technology include the development of more efficient ion exchange resins, automated regeneration systems, and enhanced monitoring tools. Modern resins offer improved capacity for removing impurities, reducing the need for frequent regeneration. Automated systems streamline the regeneration process, minimizing downtime and operational costs. Advanced monitoring technologies, such as real-time conductivity and pH sensors, allow for more accurate tracking of condensate purity and system performance. GlobeCore also provides innovative filtration solutions that help optimize condensate polishing systems, enhancing both performance and reliability.

    Common testing methods include insulation resistance testing, capacitance measurement, power factor (tan delta) testing, and partial discharge (PD) testing. Capacitance and power factor tests help assess the insulation condition, while PD testing detects electrical discharges within the bushing that could indicate insulation breakdown. Dissolved gas analysis (DGA) of the bushing oil is also performed to detect faults.

    Methods include:

    Mechanical Filtration: Using fine filters to remove solid contaminants.
    Vacuum Filtration: Combining filtration with vacuum processes to eliminate moisture and gases.
    Centrifugal Separation: Employing centrifugal force to separate particles based on density.
    Adsorption Filtration: Using materials like activated alumina to remove dissolved impurities.
    Electrostatic Precipitation: Applying electric fields to capture fine particles suspended in the oil.
    These methods effectively restore oil purity and maintain its insulating properties.

    Recent Air Drying Technology Advancements have significantly improved the efficiency and effectiveness of transformer drying processes. One notable advancement is the integration of smart sensors and automation, which allow for real-time monitoring and dynamic adjustments of drying parameters such as airflow, temperature, and humidity. This ensures optimal drying conditions are maintained consistently. Advanced filtration materials have been developed, offering higher efficiency in removing particulate contaminants without impeding airflow, thus enhancing overall drying performance. Energy-efficient heating systems reduce the operational costs associated with transformer drying by minimizing energy consumption while maintaining necessary temperature levels. Additionally, modular Air Drying Systems provide scalability and flexibility, allowing for tailored solutions that can be easily expanded or reconfigured based on specific transformer drying needs. Innovations in control software enable better data analysis and predictive maintenance, anticipating potential issues before they arise and ensuring the drying process remains uninterrupted. These technological advancements collectively enhance the reliability, speed, and cost-effectiveness of transformer drying processes, contributing to improved transformer performance and longevity.

    Regular maintenance of a Diesel Fuel Filtration System ensures optimal performance by consistently removing contaminants that can degrade fuel quality and harm engine components. Routine filter inspections and replacements prevent clogging, maintaining proper fuel flow and pressure, which is essential for efficient engine operation. Cleaning filter housings and checking seals and connections prevent leaks and recontamination of the fuel. Monitoring pressure gauges and other indicators helps detect issues early, allowing for timely interventions before significant problems arise. Lubricating moving parts and ensuring the pump operates smoothly reduces wear and prolongs system life. Additionally, regular oil quality testing can assess the effectiveness of the filtration system, ensuring that contaminants are being adequately removed. By adhering to a scheduled maintenance regimen, the filtration system remains efficient, protecting the engine from wear, reducing downtime, and extending the lifespan of both the fuel system and the engine, thereby ensuring reliable and optimal performance.

Viewing 15 posts - 1 through 15 (of 22 total)

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