Fundamental of fluid mechanics and thermodynamic a. Lubrication Engineering, Vol. Available for a wide gas application range. This offers operations and mechanics the option to choose when maintenance should be performed. Search Products And Discover New Innovations In Your Industry. Most repairs to the gas turbine compressor involve. Recently, demand has increased in the summer months to generate electricity for cooling due to the low price of using natural gas to generate electricity and the retirement of coal-fired power plants. The difference between a natural gas engine oil and diesel engine oil is primarily in the amount of antiwear additive and the amount and types of detergent additives used. This consists. Now that the demand is year round, the availability for planned downtime is drastically reduced. The results of this work, shown in Figure 7, indicated that there was an appreciable absorption of the mineral oil in the gas. A diesel engine could also be used. RoviSys furnished transparency of the completed work with CPG so that as system owners, it was comfortable with the components. Gauge Maintenance caused by a change in gas composition normally presents as a shift in Blowby / Gauge Maintenance across all cylinders of a compressor. Summary gas seal environment, the availability of seal gas sources of supply to cover all operating conditions, and the operation and maintenance of the compressor or gas seal system. At that point, it’s usually too late. Remove the oil drain cap, and let the oil drain out. Conversely, increasing the temperature at a constant pressure will result in lower gas solubility. The choice of a compressor lubricant depends on the type and construction of the compressor, the gas being compressed, the degree of compression and the final outlet temperature. The Gas Compressor Specialist supports all the maintenance activities related to the Centrifugal Gas Compressor & Reciprocating Gas Compressor. 4, p. 18-21. Often, it’s beneficial to take a compressor out of service either before or after short-term peak demands, such as a period of very cold weather. Matthews, using a constant pressure flow through a load (gravimetric) cell evaluated the absorption of the lubricant in natural gas. There is little-to-no time to prepare for the outage and this situation can become critical in cases where the station lacks a standby unit to carry the load. In wet sump reciprocating and rotary screw compressors, the compressed gas and the lubricant come into contact with each other. Finally, various tests that have been reported for use with compressor lubrication have been summarized. Synthetic Compressor Lubricants - State of the Art. Polyalkylene Glycol-Based Compressor Lubricants. Each impeller imparts velocity (kinetic) energy READ THOROUGHLY BEFORE ... shaft power into gas compression in a relatively small space Conditions on the pipeline demanded that the unit continue to run to meet a critical need for storage injections. Search Natural gas compressor mechanic jobs in Texas with company ratings & salaries. CPG collected data at compressor stations and other operational points using dozens of interfaces to PI that needed to be migrated as well. Main Responsibilities . Monitor the gas content as you purge. Easy gas compressor operation. The system included all of the tools that CPG needed to become proactive with its data. hbspt.cta.load(3951034, '0185d019-b885-48b3-81bb-598c6269bb64', {}); The solubility of natural gas and other hydrocarbons is much higher in petroleum oils and polyalphaolefin (PAO) synthetics compared to other commonly used synthetic base stocks such as diesters and polyalkylene glycols (PAG). Fundamental of fluid mechanics and thermodynamic a. Replace the gas turbine engine in the reverse order. Intangible benefits include increased customer confidence, improved reliability, and asset availability. 47, No. Components of a Compressor Station. Natural gas enters a compressor station through station yard piping and is passed through scrubbers and filters to extract any liquids and remove solids or other particulate matter that may be in the gas stream (Figure 1). Implementing a directed inspection and maintenance (DI&M) program is a proven, cost-effective way to detect, measure, prioritize, and repair equipment leaks to reduce methane emissions. The final design selection depends on numerous factors. Thats why its important to take your air compressor maintenance seriously, and John Henry Foster can Initially, CPG brought in RoviSys for the automation company’s knowledge in implementing large-scale, redundant PI architectures and for its relationship with OSIsoft. CENTRIFUGAL COMPRESSOR OPERATION AND MAINTENANCE 11 Figure 3. 40, No. Gas-compressor operator, supervisor, and to whom may concern in gas-compressor operation and maintenance. TRAINING MATERIAL OUTLINE : 1. For customers in the Northeastern U.S., we offer compressor and engine field service, inspection and overhauls in a more limited capacity. Patzau, S. and Szchawnicka, E. (1989). 3, p. 230-238. This information offers a comprehensive overview of natural gas compressor lubrication and fluid maintenance. Two Hands Restorations Recommended for you Our reciprocating gas compressor product line is the QRNG , which is designed and engineered exclusively for natural gas applications. These Compressor stations might be anywhere from 40 to 100 miles apart and they receive, store, and deliver gas throughout the pipeline system. The optimization model of the framework consists of three main parts: the models of compressor maps, the operational aspects of compressors, and a maintenance model. With new demands as well as changes in the flow of gas along CPG’s pipeline, compressor stations that previously supplemented the process have become critical. Valve maintenance 4.1 General guidelines 4.2 Plate valve 4.3 Ring valve 4.4 Poppet valve 4.5 COP® valve 5. Compressor body with windows for disassembly and inspection of crosshead, etc., to facilitate inspection and maintenance. Four-Stage Barrel Compressor. An overview of various compressor designs used for natural gas, their lubrication and potential lubricant-related problems have been provided. Installation - Operation - Maintenance ROTARY SCREW COMPRESSOR UNITS WITH MICROPROCESSOR CONTROL ALL REFRIGERANTS THIS MANUAL CONTAINS RIGGING, ASSEMBLY, START-UP, AND MAINTENANCE INSTRUCTIONS. Traditionally, CPG relied on PM to mitigate unplanned downtime and compressor unit failures. Mang, T. and Jünemann, H. (1972). The operations analyst dug deeper into the data and discovered that the turbo oil pressure was lower than usual. Course Objectives Store in a safe and convenient location for future reference. TURBINE ENGINES. Valve selection 6. It aims at expanding the application of reliability-centered maintenance (RCM) in maintenance schedule making to preventive maintenance decision-making online and seems suitable for maintenance of natural gas compressor stations. Cohen, S. (1987). 6, No. Development of Synthetic Lubricants for Extended Life in Rotary-Screw Compressors. Air compressor maintenance involves a set of practices that need to be performed to varying degrees on compressors of all makes and models. The company refactored aspects of the predictable analytics so that the system could scale from an initial set of pilot compressors to more than 266 units monitored today, as well as planned future units. The new enterprise analytics program uses SharePoint, PI, and SQL technologies to analyze data and drive proactive and corrective actions. Air Compressor Maintenance Checklist. Hydrocarbon gases are infinitely soluble in mineral oil and PAO-based compressor lubricants, while the solubility of hydrocarbon gases increases with increasing pressure at a constant temperature in a less compatible fluid such as an ISO 220 polypropylene glycol as illustrated in Figure 1. Recommended Preventive Maintenance Checks for Your Compressor. Oils for Air and Technical Gas Compressors. Turbine compressors – typically powered by a small percentage of the natural gas it takes in, acts as a centrifugal compressor. The data must be presented in formats compatible with a broad audience. You can vent it to any safe area away from people. Piston compressors provide the highest gas pressures and are among the most difficult from the standpoint of cylinder lubrication. Services are provided to the oil and gas industry in West and South Texas and Southeast New Mexico with reciprocating compressor packages ranging from 10-50 horsepower. The solubility was measured in a fixed volume apparatus. The equipment analyst connected a vibration analyzer to the turbocharger and discovered a balancing problem. Erdöl kohle- Erdgas-Petrochem. Enalysis Tip 1.7 - Gauge Maintenance Result for Gas Compressor … MAINTENANCE OIL-FREE PROCESS GAS HIGH RELIABILITY NO PULSATION OPTIMUM CONTROL COMPACT INSTALLATION FOOTPRINT NO VIBRATION. The architecture needed significant expansion to support the desired tools. Thats why its important to take your air compressor maintenance seriously, and John Henry Foster can Air Compressor Maintenance Checklist. The selection of the proper compressor and application-dependent lubricant with the appropriate physical-chemical properties is vital to a successful process. Computers regulate the flow and number of units that are needed to handle the scheduled system flow requirements. RoviSys integrated all of the PI components so that CPG had a single experience through a set of simple-to-use dashboards, created custom interfaces between components of the systems, and created tools that extended the functionality of the off-the-shelf PI components to meet the specific needs of predictive analytics and customer-use cases. Compressor Designs, Inc. (CDI) was formed in 2001 to operate and maintain a rental fleet of small horsepower electric motor driven gas compressors. For example, after the implementation, an operations analyst received an alert that a power cylinder did not reach normal operating temperature after a compressor was restarted. In 2010, Houston-based Columbia Pipeline Group (CPG) had a compression asset failure that interrupted service and had the potential to create customer dissatisfaction. – Bryan Toich has been the solution architect for the Enterprise Analytics project at the Columbia Pipeline Group since 2012. Compared to the PAG, the lubricant showed no appreciable loss. Our vision is to provide technologically advanced solutions that combine performance and environmental responsibility, while constantly striving to meet or exceed customer expectations. Ensure unit is off and disconnect from the power source; Ensure compressor is on a flat and level surface; Remove fill cap / plug; Place collection container underneath the oil drain cap. Typically, equipment materials and design must be suitable for inlet temperatures lower than -160° C (-256° F). Service and Maintenance Manual 20 HP 8G VRUE Skid Auto Bypass Gas Compressor 309777-GN 12/3/2013 Van Ormer, H. (February 1987). J. Synth. It takes lots of money, time and at least a basic knowledge of the equipment. Service to end users was not disrupted and data were available during the entire cutover. At the core was a SharePoint system capable of reaching every member of the organization who was outfitted with PI Web parts, so that the entire enterprise could view dashboards containing analytical information about the compressors at CPG’s stations. Owning an air compressor is a big responsibility. Trybologia, Vol. In order to minimize downtime and maximize profit, these complicated machines need the attention of competent, professionally trained people. place the engine in a maintenance stand. MAINTENANCE OIL-FREE PROCESS GAS HIGH RELIABILITY NO PULSATION OPTIMUM CONTROL COMPACT INSTALLATION FOOTPRINT NO VIBRATION. 20, No. Gas & Air Services (UK) Ltd offers a central point for all your high pressure and low pressure air and gas compressor requirements. Tolfa, J. In another situation, just prior to the cold season, an operations analyst received an alert that one of the compressors had a 400% increase in vibration. Gas Compressor Maintenance (Part 1) 1929 Air Compressor Restoration - Restored to New Condition - I Didn't Think It Would Run - Duration: 32:17. The lubricant solubility in the compressed gas should also be minimized to reduce carryover by absorption of the lubricant in the gas. CPG wanted more than 10 years of valuable data transferred to the new architecture so the company could add more data points for analytics. But, with the correct maintenance, air compressors can last up to 10 years. 6–9 The gas compression installation in this study is faulty 12% of the time, due to unavailability of the turbocompressor. 7, p. 372-374. Finally, various tests that have been reported for use with compressor lubrication have been summarized. A fan compresses and pumps the gas through. The company needed a swift, reactive approach to resolve the problem. Compressor stations are placed strategically within the gathering and transportation pipeline network to help maintain the pressure and flow of gas to market. Rotary vane compressors require the use of an antiwear oil because an R&O oil is often insufficient for the crankcase splash lubrication of a reciprocating compressor. 318 Natural Gas Compressor Technician jobs available on Indeed.com. It provided test plans for quality control for the predictive analytics system and the software that it developed and deployed. Off Gas Compressor Gas type and required pressure are significant factors on both compressor and compressor lubricant selection. Different Types of Compressors. Available for a wide gas application range. Finally, various tests that have been reported for use with compressor lubrication have been summarized. Natural gas engine oil is typically used because it is readily available if the drive, that powers the compressor, is a natural gas engine. Every air compressor model is unique and will have its own maintenance schedule, which is typically available in the owner’s manual. As tapping into these new sources for electrical power generation has increased over the past decade, meeting the demand for natural gas to heat homes has peaked during the colder months. Properties of fluids b. A typical PM program often relies on techniques, such as routine inspections, performance testing, or replacing compressor components before their mean time to failure. On an industrial air compressor, preventive maintenance is crucial to ensure the functionality of the system and its various attachments. A gas turbine maintenance strategy that keeps your fleet and turbine competitive includes: Knowing your assets and operating procedures: Understanding what assets are owned and their current condition is the first building block to creating a maintenance plan.Thorough understanding of your organization’s procedures will identify gaps that can expose you to unplanned events. Some of the most commonly reported oil-related service problems with compressors include: The successful development of a compressor lubricant will depend on how well the oil meets these technical requirements. Because increasing gas solubility decreases viscosity, at some point the viscosity reduction of the compressor lubricant may be too much, and lubrication failure may result because of loss of hydrodynamic lubrication, Figure 2. Concern to many industries regulate the flow and number of units that are needed to be performed to degrees! 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