Muhammad Gorki - PIE, LSS-YB的动态

Corrosion Under Insulation in Tanks For insulated tanks, Corrosion Under Insulation is a particular problem at the lower section of?the shell, at stiffening rings, on the roof and where there are penetrations through the insulation? weatherproofing. The rate of corrosion is dependent upon water or water vapour penetration?and its retention in the insulation. Metal/ambient temperature, corrosion inhibitors within the?insulating material, and paint coatings under insulation all influence the rate of attack. Good design, material selection, attention to detail and good standards of workmanship are?fundamental in minimising corrosion issues. The use of cellular glass closed cells are recommended?for susceptible areas that include the bottom section of the shell, at secondary wind girders, on?insulation support rings, or locations where water could pool. This is due to the low moisture? retention qualities of the ‘closed cell’. Appropriate adhesives and sealants/mastics should be?selected as the end of their functional life, which may allow water ingress between insulation and?shell, is difficult to detect. Some tank operators prefer to leave the bottom section of the shell un insulated in order to prevent?wicking up action and to allow drainage of any water having entered the insulation at higher?elevation penetration. There is some loss of heat, but a critical part of the tank is readily accessible for inspection, and corrosion degradation is removed in this location. However, the un-insulated part may be affected?by thermal stresses during periods of low ambient temperature. Insulation requirement in this location should therefore be periodically reviewed. #oil #refinery #storage #tanks #terminal #maintenance #inspection #corrosion #insulation #heat #hotprocess #thermal #safety #desing #engineering #oilgas

#Hydrostatic_testing is a crucial technique used to verify the #durability, #safety, and soundness of various objects, including #pressure_vessels, #piping_systems, #boilers. What Is Hydrostatic Testing? Hydrostatic testing is a pressure-based method. It assesses the structural integrity and fitness of objects by subjecting them to #hydraulic_pressure. The primary goal is to detect #leaks, ensure #safety, and validate compliance with design #specifications and #standards. How Does It Work? The process involves filling the object (such as a #pipeline, #tank, or cylinder) with a nearly #incompressible_liquid, typically #water or #oil. The vessel is pressurized to the specified test pressure. During the test: #Leak_detection. The system is examined for any leaks. #Shape_changes. Permanent changes in shape are monitored. #Visual_aids: Red or fluorescent dyes may be added to the water to enhance leak visibility. The test pressure is significantly higher than the operating pressure to provide a safety margin. be about 1.5 design Why Is Hydrostatic Testing Important? #Ensures_safety. Containers failing under pressure can lead to explosions. Detects #defects early. Leaks or weaknesses are identified before they escalate. #Compliance. Hydrostatic testing aligns with industry standards and legal requirements. #Records. Documentation of test results is essential for future reference. The vessel is visually #inspected for defects. It is then placed in a container filled with water, and changes in volume are measured. This test provides valuable information about the vessel's behavior under pressure. Remember, hydrostatic testing contributes to the reliability and safety of critical systems!

Isolation kits are a critical component in combating electrolytic corrosion within piping systems. By insulating flanges and flanged joints, these kits act as a barrier between dissimilar metallic surfaces, preventing corrosion. The applications of insulating gasket kits are vast, especially in electrically isolating sections of pipework made from different metals within cathodic protection systems. By eliminating the risk of galvanic cell formation, these kits play a key role in preventing corrosion along pipelines. A standard flange insulation kit comprises various components including a central gasket, insulation sleeves for each bolt, insulating washers, and plated steel washers. Together, these components work seamlessly to uphold the system's integrity and extend its lifespan. #IsolationKits #CorrosionPrevention #PipingSystems #Maintenance #Engineering

What causes corrosion under insulation? Corrosion under insulation (CUI) refers to oxidation on the surface of an insulated metal pipe or vessel. The insulation material traps moisture underneath it, causing the metal to be in constant contact with oxygen in the water. This constant contact exacerbates the problem by increasing the corrosion rate. Corrosion under insulation is a hidden phenomenon. For practical reasons, it may not always be possible to apply the best insulation-coating combination or use the most feasible inspection methods. Intruding water is the key problem causing CUI. Corrosion may attack the jacketing, the insulation hardware or the underlying piping or equipment. The corrosion may present itself in one of several different types, such as chloride, galvanic, acidic or alkaline corrosion. By understanding the types of corrosion that may occur under insulation, the proper materials and construction methods can be proactively applied to prevent them. Environmental Conditions Leading to Corrosion Under Insulation: Foreseeing CUI rates is difficult?they can be highly localized or somewhat general in nature. Listed below are some of the environmental conditions that lead to higher CUI rates: 1-) Marine environments 2-) Hot or humid environments 3-) Climates with higher rainfall 4-) Steam tracing leaks 5-) Intermittent wet-dry conditions 6-) Contaminants from the insulation or the atmosphere (such as chlorides and sulfides) dissolving in water 7-) Systems that operate below typical atmospheric dew point 8-) Insulation systems that don’t allow moisture drainage 9-) Insulating materials that hold moisture CUI is a threat to many industries. If neglected, it remains hidden under the insulation system and becomes only obvious after severe failures. CUI occurs through penetration of water or moisture and contamination via condensation or external sources (e.g., rain, sprinkler system).CUI can be very localized, with most of the equipment remaining in good condition. #oil #gas #refinery #process #piping #LNG #insulation #heat #corrosion #heattransfer #mositure #water #safety #maintenance #inspection #engineering #learning

Paint Professionals Inc provides corrosion under insulation repair (CUI) services to quickly restore and protect pipes, tanks, and vessels suffering from pitting, thin wall defects, and loss of structural integrity. We use a range of Belzona polymeric composites and match them to your specific needs. Application is safe and can be carried out in-situ including hot surfaces. Benefits include: -Correct problems from corrosion and prevent it in the future -Apply repairs while assets are online to reduce down time or lost production -Reduce closure work and save money on costly replacements -Rebuild areas of severe corrosion and pitting or thin wall decay -Restore pipe thickness with cold bonding and polymeric wraps -Apply directly to hot surfaces from ambient to 302°F -Safe, solvent free materials -Chemical and heat resistant -Long-term, durable protection proven to out perform traditional repairs Read more about our CUI services here: https://lnkd.in/gijCDBSx

???????? ???? ???????????????????? ???? ?????????????????? ???????????? ???? ??????????????????? ? Components in pipeline systems designed to provide electrical isolation between different sections of the pipeline and minimizing the risk of corrosion. ?????????????? ?????? ????????????????: ? Prevent galvanic corrosion by electrically isolating sections of the pipeline made from dissimilar metallic materials. ? Ensure effective current distribution and management for cathodic protection systems. ? Protect pipelines from stray currents and earthing currents at domestic and industrial premises. ? Significantly reduce maintenance efforts and associated costs by mitigating corrosion. ?????????????? ??????????????????: ? Insulation joints incorporate non-conductive insulating materials, such as plastic, rubber or ceramic, between the metallic sections of the pipeline. ? This breaks the electrical continuity and prevents the flow of electrical currents, thereby mitigating galvanic corrosion. ???????????????????? ?????????????? ???????????????????? ?????? ?????? ???????????????????? ??????????:: ? ???????????????????? ?????? ? A package or set of materials used to provide electrical insulation and sealing capabilities in piping systems. ? It typically includes various components such as insulating gaskets, insulating sleeves, washers, and insulation pads. ? ???????????????????? ?????????? ? A pre-assembled component specifically designed to interrupt electrical continuity and prevent the passage of electrical current between different sections of the pipeline.

Fireproofing Inspection: Many foundation structures in refineries such as skirts of process columns and the supports of spherical storage tanks are covered with a layer of fireproofing for safety reasons. Periodic inspection and testing maximizes the useful life of the fireproofing system. An inspection and testing program should include the following steps: ■ Survey coatings for surface cracking, delamination, rust staining, or bulging. ■ Survey coatings for signs of weathering (color change, powdering, thinning of coat). ■ Selectively remove small sections of fireproofing to examine conditions at the face of the substrate and the surface of reinforcing wire. Repair the inspection area. ■ Visually check for the loss of fireproofing materials as a result of mechanical abuse. ■ When the fireproofing material is applied, coat and set aside several pieces of structural steel for periodic fire-testing over the expected life of the coating. (This is not necessary with rigid box or flexible containment systems.) ■ Inspect to make sure that the fireproofing hasn’t been removed for maintenance and not replaced. Small cracks or holes in fireproofing may cause ingress of water, resulting in corrosion underneath the covering. The deterioration process cannot be detected by Visual Inspection alone. Failing to adequate condition monitoring tools, the deterioration process may eventually cause the foundation to collapse with disastrous results. Pulsed Eddy Current (PEC) is a method utilized to identify flaws and corrosion beneath fireproofing without the need to remove the fireproofing. Conduct radiography profile or PEC to effectively detect such issues. #oil #gas #oilandgas #inspection #fireproofing #lng #ndt #corrosion #radiography

#Flange_Insulation_Kits Flange insulation kits are used to prevent electrolytic corrosion between metal flanges, particularly in pipelines that transport different media or are exposed to different environmental conditions. These kits electrically isolate sections of piping from each other, reducing the risk of galvanic corrosion caused by contact between dissimilar metals or stray electrical currents. ??Components #Insulating_Gasket: The primary component that sits between two flange faces to prevent electrical continuity. It’s typically made from non conductive materials, like phenolic or epoxy glass laminates. Insulating #Sleeves_and_Washers: Placed on the bolts that connect the flanges, these prevent electrical contact through the bolts. The sleeves go around the bolt studs, while washers are installed between the nuts and flange. #Steel_Washer: Added outside of the insulating washer, providing additional structural support and maintaining bolt integrity. #Nut_and_Bolt_Studs: These secure the flanges together, with the insulating sleeves and washers ensuring that the nuts and bolts don’t provide a conductive path. ??Applications #Oil_Gas Pipelines: Where different segments may need isolation due to varied media or risk of electrochemical reactions. #Cathodic_Protection Systems: In systems where certain pipeline sections are protected with cathodic protection, insulation kits prevent protected areas from losing their charge to unprotected segments. #Chemical_Processing Plants: Where corrosive or conductive fluids flow, insulation kits help prevent current flow between pipelines. ??Benefits #Prevents Galvanic Corrosion: Stops corrosion that could result from electrical contact between dissimilar metals. #Cost_Effective: Reduces the need for extensive maintenance by minimizing corrosion. #Ensures Safety: Helps avoid potential leaks or failures caused by corrosion-related damage.

Pipe corrosion has affected industrial piping system applications since the beginning and it continues to affect the industry today. From structural degradation, economic loss, and operational efficiency, even including the loss of human life. There have been countless attempts at corrosion prevention and specific engineering has made significant improvements. Here are a few of the main contributing factors of exterior pipe corrosion when the pipe comes in contact with supports- - Metal-to-Metal Contact: When different metals or alloys come into contact, especially in the presence of water, a galvanic cell can form, leading to galvanic corrosion. - Obstructed Airflow: Proper airflow around pipes is crucial for maintaining a dry environment. When airflow is obstructed, particularly at pipe supports, it creates micro-environments where humidity can increase. - Moisture Accumulation: Moisture is a key factor in corrosion processes. When moisture accumulates at the contact points between a pipe and its support, it fosters an environment conducive to corrosion. Our RedLineIPS product line is dedicated to offering a multitude of different solutions to this problem. Most notably, the SmartPad System, was specifically engineered to prevent exterior pipe corrosion and eliminate highly involved steps in its application. Visit https://SmartPadSystem.com for more information. #RedLineIPS #CogbillConstruction #OilandGas #CorrosionAwareness #CorrosionPrevention #CorrosionProtection #IndustrialPiping