Mueller Environmental Designs’ Post

Unexpected Rotordynamic Instability In A "Proven" FCC Wet Gas Compressor. Thanks Ed Wilcox for sharing. Abstract The cause and effects of a large subsynchronous vibration (3.5 mils at 3490 cpm) in an FCC wet gas compressor are examined. The compressor is driven at 7850 rpm by a 6000 hp electric motor, through a speed-increasing gearbox, and compresses hydrocarbon gases from 20 psig to 235 psig. A rotordynarnic analysis of the compressor determined that even though the compressor had a long history (approximately 25 years) of smooth operation (overall amplitudes less than 0.5 mils), it had a very low margin of stability. This lack of stability was caused by a high bearing to shaft stiffness ratio as well as destabilizing forces in the balance piston and shaft seals. The pressure dam bearing design is not destabilizing to the rotor system because the journal is very heavily loaded; however, the high direct stiffness that is produced reduces the effective damping of the system. Labyrinth and oil seals are usually not considered to have large effects on a compressor with such low pressures. However, the atmospheric side of the oil seal was determined to contribute the largest destabilizing effect. The effective length to diameter (LID) ratio of the oil seal was reduced by 50 percent to lower the amount of cross-coupled stiffness the seal produces. This modification reduced the subsynchronous vibration from 3.5 mils to 0.1 mils. The rotordynarnic analysis also identified other modifications to the bearing and balance piston design that should be made to increase the rotor's margin of stability. Both steady-state and transient spectral vibration data are provided before and after the oil seal modification to validate the rotordynarnic model of the compressor. #Rotating #Equipment #Vibration #Rotordynarnic #gasturbine #Compressor

INTRODUCING HYDRAULIC PUMP✨ Hydraulic pumps work by converting mechanical energy into hydraulic energy. They are used to create flow and pressure in a hydraulic system. Here is how hydraulic pump works - 1) The main purpose of the reservoir is to hold hydraulic fluid that isn't being used. 2)Within the hydraulic system, the pump starts a fluid flow and transfers it. 3)The viscous fluid that the pump transfers is moved by tubes or hoses. 4)This pipe equipment subsequently transports the fluid to the hydraulic cylinder. 5)Hydraulic energy is converted to mechanical energy by actuators. 6)By controlling the actuators' output and returning liquid to the reservoir when required, pressure relief valves stop overpressure. 7)Hydraulic fluid flow can be altered in both size and direction with the use of directional control valves. #teckytuesday #pdbatch #pd #innovation #hydraulic #hudro #pumps #efficient #costeffective #ESM #itm #ITMBusinessSchool #ESMEducation #PD2024

This article in Turbomachinery International magazine covers research we performed to mitigate foreign object damage and corrosion fatigue in 17-4 PH stainless steel compressor blades in steam turbines. It was a great success. Read the article to learn exactly what we did and see the detailed results. Link in comments. Does your company encounter damage from FOD or corrosion in any of your components? #mechanicalengineering #powerengineering #turbomachinery

This article in Turbomachinery International magazine covers research we performed to mitigate foreign object damage and corrosion fatigue in 17-4 PH stainless steel compressor blades in steam turbines. It was a great success. Read the article to learn exactly what we did and see the detailed results. Link in comments. Does your company encounter damage from FOD or corrosion in any of your components? #mechanicalengineering #powerengineering #turbomachinery

Discover the power of Niche FPPs Reactor Coil Model R500 heat exchangers, meticulously crafted for optimal performance in crystallization applications. Designed for immersion directly into process vessels, these heat exchangers excel when agitated, reducing fouling and enhancing heat transfer efficiency. Learn more about how our flexible tubes elevate your reactor's performance and longevity. Visit Us: https://lnkd.in/grZ67-Bw #quality #mechanical #newstoday #heattransfer #sustainability #fluoropolymermaterials #semiconductorindustry #corrosive #puritymatters #nicheFPP #sustainabilitymanagement #heatexchangers #extractionequipment #distillationprocess #manufacturingengineering #industrialarea #tubing #immersioncoils #semiconductors #heatexchangers #fluouropolymers #product #fluoropolymerproducts #innnovation #immersioncoil #heating #shellandtube #energysaving #sustainable #news #update #latestupdates #usa 

#mechaniverse Combustion air measurement To properly control the combustion air, O2 and CO must be measured at the top of the radiant section where combustion is completed, regardless of the burner loading. Note that O2 and CO will coexist within the flames, where the temperature may be as high as 1200˚C.   Low NOx burners may use delayed completion of combustion through staged air to fuel mixing, or external recirculation of cooler flue gas with combustion air, reducing peak flame temperature.   In either case, to effectively control the combustion process it is essential to measure O2 and CO at the top of the radiant section, ideally 1 ft. / 0,3 m below the roof tubes where combustion reaction is expected to complete under all heater operating loading conditions.   Using a Tunable Diode Laser Spectrometer (TDLS) in concert with a dedicated controller, a cross sectional average O2 and CO density rather than a localized spot measurement can be measured to determine the right air/fuel ratio.   Using an average O2 value and CO limit value produces safer burner control and greater overall heater efficiency.   🔥 Follow me on LinkedIn: https://lnkd.in/dyJ4T5Dn     🔥 Join me on telegram: https://t.me/firedheater #mechanicalengineer #processdesign #firedheater #API #Emissions  #Pollutants  

Pressure compensation on a variable displacement pump is clever. Saves lots of energy (and less heat build up) compared to a fixed displacement pump with relief valve, especially when valves are proportioning flow. But load-sense systems save even more energy by having the compensator set on-the-fly using pressure feedback from the actuator. Maximum pump-regulated pressure setting (the second spring), perhaps only 300 psi (20 bar) higher than current load pressure. There’s more of course, but theses are some basics. #hydraulics #engineering #energysavings

Manufacturers should engage in thermal fluid sampling and analysis. Thermal fluids operate at high temperatures for long periods of time, and because of that, they naturally degrade over the course of their lifespan. We take representative samples and analyse fluid condition, enabling you to ensure preventative maintenance is carried out to prevent unnecessary thermal degradation and downtime. For accurate, representative results, thermal fluid samples are taken closed and while the system is circulating at temperature. Our sampling service helps: ✅Prevent downtime ✅Extend thermal fluid life ✅Trend data to predict future events ✅ensure safety and operational efficiency ✅Provide a clear paper trail and demonstrate proactive compliance in the event of an insurance claim Learn more about our sampling service: https://zurl.co/WGtz Speak to a member of the team to find out more. Telephone: ☎️ 44 (0) 1785 760555 | Email: [email protected] #ThermalFluid #Manufacturing #Engineering #ght #htf

The Challenge: On-site relocation and repurposing of our HCV, according to customer demand A decade after installing our DOROT S300 control valve in the challenging environment of the Dead Sea, we were presented with a unique challenge by our customer. They sought to relocate and repurpose the valve for two distinct applications - Pressure Reducing, and Pressure Sustaining (PR/PS). As part of the solution to the challenge, durable stainless-steel pipes had to be added to the valve. Our skilled team carried out on-site processing, bending, and installation to ensure longevity and resilience of the system, despite the harsh conditions of the area. At #Aquestia, we thrive on problem solving, and pride ourselves on delivering tailored solutions to meet every hydraulic challenge. Here’s to another successful project that showcases our expertise and commitment to meeting our customers’ needs! Facing any hydraulic challenge? Contact us: https://aquestia.com/ #Dorot #ARI #OCV #watermanagement #controlvalve #hydraulic #Water

REVERSE PULSE SELF-CLEAN VERTICAL AIR FILTER MUELLER MODEL HPSC The Mueller HPSC provides exceptional inlet air filtration for gas turbines, fans, compressors, reciprocating engines and other rotating machines, achieving a 99.6% efficiency on AC fine test dust using the ASHRAE 52-76 testing method. Dust laden air enters the filter housing and is repeatedly cleaned as it passes through a high efficiency extended-surface filter element before exiting through the clean air plenum to the rotating device's inlet. A reverse pulse self-clean process removes filtered contaminants, which exit the system under the module skirt. The HPSC system includes a filter holding housing maintenance area and clean air plenum with extended surface barrier filters, filter element supports and reverse air pulse mechanism. As with all Mueller products, the HPSC is engineered for low-maintenance, and built to last. The housing is all-welded, hot rolled carbon steel construction. The extended surface barrier filter elements are made of uniformly pleated cellulose blend media packs. The media is formed into round filter elements with galvanized cell top and bottom end plates. The filter element leading to the clean air plenum is connected with a closed cell neoprene gasket. The reverse pulse mechanism is comprised of an external compressed air manifold with diaphragm air valves and 1.5 NPT connections at each end. The manifold is externally bolted to the clean air plenum subassembly roof. The timing circuit controls are factory installed and tested prior to shipment. 💡 HPSC ADVANTAGES • Low-maintenance self-cleaning system • High efficiency filtration (99.6%) • Superior all-welded heavy gauge construction • Designed for minimal pressure differential #MuellerEnvironmentalDesigns #ProvenUnderPressure #BuiltToLast #MUELLERmodel #EngineeredToPerform #PatentedTechnology