Page 2 of Pressure Vessel News

Filtering particles from gases and liquids, coalescing filters ensure high product purity and protecting downstream equipment. By merging small droplets into larger ones, these filters efficiently capture contaminants through mechanical or electrostatic means, with precision reaching 0.01–0.1 microns. Widely used in alternative fuels, chemical processing, oil and gas, and compressed air systems, coalescing filters reduce equipment wear, minimize downtime, and lower operational costs. Proper selection, installation, and maintenance, including considerations for bowl material, drainage method, flow capacity, and filter indicators, ensure optimal performance, extending equipment life and maintaining process reliability.

Underground storage tank (UST) leaks pose serious environmental, financial, and legal risks, often caused by corrosion, improper installation, overfilling, aging infrastructure, or material incompatibility. Early warning signs such as unusual odors, fuel inventory loss, and groundwater contamination can help identify potential issues before they escalate. Professional detection methods, including soil and groundwater sampling and laboratory analysis, are essential for confirming leaks and assessing their impact. If left unaddressed, leaks can lead to soil and water pollution, regulatory penalties, and significant cleanup costs. Implementing regular inspections, proper installation practices, equipment upgrades, and emergency response planning is key to effective prevention and long-term safety.

This article provides a comprehensive comparison between fixed roof storage tanks and floating roof storage tanks, focusing on their structural design, operating principles, performance characteristics, safety levels, environmental impact, and economic considerations. It explains how fixed roof tanks offer a simple, cost-effective solution suitable for low-volatility media, while floating roof tanks significantly reduce evaporation losses and VOC emissions, making them ideal for high-volatility, high-value, and environmentally sensitive applications. By analyzing key factors such as product characteristics, regulatory requirements, safety standards, investment costs, and storage scale, the article offers practical guidance to help engineers and decision-makers select the most suitable storage tank type for efficient, safe, and sustainable industrial storage operations.

This guide provides a comprehensive overview of selecting oil and gas three-phase separators, emphasizing the importance of gas-liquid ratio, vessel orientation, internal design, solids management, and adaptive control strategies. It highlights common design pitfalls, the impact of field conditions, and the need for customized solutions to ensure stable, efficient separation of oil, gas, and water in early production facilities and variable operational environments.

Spiral heat exchangers are innovative devices designed for efficient industrial heat transfer, featuring a unique spiral flow path that ensures true counterflow, enhanced turbulence, and uniform fluid distribution. Their compact design, high heat transfer efficiency, and self-cleaning capability make them ideal for handling viscous, solid-laden, or fouling-prone fluids across chemical, wastewater, power, food, and pulp industries. While initial costs are higher than traditional exchangers, their reduced maintenance needs and energy savings provide significant long-term benefits. Understanding their operation, advantages, and application considerations enables engineers and decision-makers to optimize industrial processes and achieve reliable, cost-effective heat recovery.

This guide provides a comprehensive comparison of shell-and-tube and air-cooled heat exchangers, detailing their working principles, structural features, performance advantages, typical applications, and key selection factors. It explains how shell-and-tube exchangers excel in high-pressure, high-temperature, and space-constrained scenarios, while air-cooled exchangers offer water-free operation, simplified maintenance, and sustainability benefits. The article also covers cost analysis, lifecycle considerations, and recommended selection processes to help engineers make informed decisions for industrial applications.

The final decision should be based on a comprehensive technical and economic analysis. It is recommended to involve material engineers and corrosion experts in the evaluation, and when necessary, conduct coupon testing to verify material suitability. A reasonable initial investment can avoid high replacement costs and safety hazards in the later stage, achieving safe, economical, and long-term operation of storage tank assets.

This guide provides a comprehensive overview of multi-media filter pressure abnormalities, covering high inlet pressure, excessive differential pressure, and low outlet pressure. It explains the root causes, including piping blockages, pump malfunctions, media fouling, and backwash inefficiencies, along with their operational impacts such as reduced filtration efficiency, equipment damage, and microbial growth. The article outlines systematic troubleshooting steps and preventive measures, including real-time monitoring, regular maintenance, and standardized operation, to ensure optimal filter performance, stable water quality, and extended equipment lifespan.

This article provides a comprehensive comparison of underground and aboveground storage tanks for petrochemical, fuel supply, and industrial projects. It explains how underground tanks do not eliminate risk but transform it into concealed subsurface challenges such as corrosion, leakage, and flotation hazards, requiring advanced corrosion protection, anti-flotation design, leak detection, and robust maintenance systems. In contrast, aboveground tanks offer advantages in visibility, inspection, fire protection, construction simplicity, and life-cycle cost control. By analyzing risk structure, technical requirements, site conditions, regulatory factors, and long-term operational capabilities, the guide helps decision-makers select the most appropriate tank solution based on project-specific needs rather than assumptions about safety or modernity.

Hydrostatic testing is a critical quality verification procedure for storage tanks after fabrication and installation. This guide provides a comprehensive overview of hydrostatic testing, including preparation requirements, staged water filling methods, monitoring and recording procedures, troubleshooting common failures, safety protection measures, risk control strategies, and acceptance standards. By following strict testing protocols and engineering specifications, hydrostatic testing ensures structural integrity, leak prevention, and long-term operational reliability of storage tanks under real load conditions.

This guide provides a complete overview of carbon steel storage tanks, covering material selection, corrosion assessment, design strategies, protective measures, and maintenance practices. It explains suitable application conditions, high-risk scenarios, and operational considerations, while detailing inspection, cleaning, and anti-corrosion procedures to ensure long-term safety and reliability. Following these guidelines, carbon steel tanks can safely operate over 20 years in various industrial environments, balancing economy and durability.

Spherical storage tanks are critical pressure vessels widely used in petrochemical, energy, and industrial storage applications due to their superior strength, efficient material usage, and uniform stress distribution. This article provides a comprehensive overview of sphere tank design, core structural components, support systems, accessories, installation methods, and welding requirements, along with essential pressure testing procedures. It also examines their advantages over cylindrical tanks, temperature classifications, and key structural design considerations.