Archive | Maintenance

34

4:02 pm
April 6, 2016
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White Paper | Predictive Analytics for Power Plants

Power producers are encountering many changes to their business model and remote monitoring — along with predictive analytics — is an attractive value proposition to end users. GE’s Predix platform offers SmartSignal, a software system that models historian plant data and constructs anomaly data to measure current conditions at a power plant. The modeling is called Variable Similarity-Based Modeling (VBM) technology and can be teamed up with GE’s Industrial Performance and Reliability Center (IPRC) to provide a comprehensive reliability solution.

This white paper introduces key concepts from the SmartSignal software and examines three power plant case studies.

Read White Paper >>

Maintenance Technology’s IIoT page | Find out more about edge computing and other proactive maintenance approaches.

36

4:06 pm
April 5, 2016
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Acquisition of Australia’s SVT Expands Wood Group’s Global Vibration-Analysis and Noise-Engineering Service Footprint

Screen Shot 2016-04-05 at 10.34.53 AMWood Group (Aberdeen, Houston, Perth) has acquired Australia-based SVT Engineering Consultants (SVT). The acquisition is expected to mark a significant step in Wood Group’s ability to provide a global vibration, dynamics and noise (VDN) engineering service line.

SVT, a privately-owned company with headquarters in Perth, provides vibration, noise, integrity engineering and asset integrity services for piping and rotating equipment. The company was formed to pioneer the application of sound and vibration technology in the Australian resource sector. SVT’s client base now covers the onshore and offshore oil and gas market including Liquefied Natural Gas (LNG), as well as mining, power and utilities sectors.

The SVT deal further expands the global technical expertise that Wood Group established with the acquisition of Calgary-based BETA Machinery Analysis in June 2015 and augmented with an expert team established in Southampton, UK, at the end of 2015. The acquisition also enhances the geographic footprint of Wood Group’s VDN service, making it a truly global offering.

SVT’s managing director Stewart Wharton will continue to lead organization’s 110-strong team of personnel in Perth and Brisbane. SVT will operate within the Wood Group Kenny (Australia) business.

51

6:58 pm
April 4, 2016
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AutomationDirect Offers Free ‘Pneumatics: A Practical Guide’ eBook

Screen Shot 2016-04-04 at 1.12.33 PMAutomationDirect (Cumming, GA) notes that its latest eBook, Pneumatics: A Practical Guide, is designed as an easy-to-read resource for users who are new to the technology.

Explaining the basics of pneumatics, along with the “why” and “how” these components and systems are used, this free download also provides detailed information about what to look for when designing a pneumatic system.

Topics include: pneumatic-circuit symbols; air preparation; actuator and cylinder basics; tubing and fitting specifications; system-design considerations; and more.

Also included is a collection of pneumatic application stories ranging from manufacturing to DIY home applications, all of which, according to AutomationDirect, are filled with useful information and inspiration from the company’s customers.

To learn more and/or download your free copy of Pneumatics: A Practical Guide, CLICK HERE.

For more information on AutomationDirect’s complete product lineup, as well as other eBooks in its library, visit automationdirect.com.

39

5:41 pm
April 1, 2016
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ITT Launches Advantage Compact Stainless Actuator for Toughest BioPharm and Food & Beverage Applications

ITT Corp. has announced that its Lancaster, PA-based Engineered Valves business has launched the Pure-Flo Advantage Compact Stainless (ACS) actuator. According to the manufacturer, the device is designed to withstand the most rigorous conditions that the BioPharm and Food & Beverage industries can dish out.

Designed as a maintenance-free unit, this newest addition to the company’s Advantage Actuator product line is well suited for severe duty services, such as SIP and high-cycle applications. ITT notes that the electropolished exterior of the ACS makes it an appropriate choice for clean-room applications requiring both aesthetics and washdown compatibility.

Features and capabilities include:

  • Compact actuator footprint
  • 316 stainless steel bonnet and cylinder construction
  • High-cycle life stainless steel piston
  • High-temperature piston seal
  • Autoclave-capable materials
  • Optional sealed bonnet
  • Stainless steel compressor and tube nut
  • Patented quick-change compressor design allows conversion from Elastomer to PTFE diaphragms without tools and no loose parts

For more information on the ACS and ITT Engineered Valves, CLICK HERE.

50

4:54 pm
March 30, 2016
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BJM Pumps RAD-AX SKG Submersibles Obliterate Wastewater’s Meanest Clogs

Screen Shot 2016-03-30 at 9.08.04 AMBJM Pumps (Old Saybrook, CT) has designed its robust RAD-AX SKG Submersible Series to obliterate flushable wipes and other difficult-to-handle items in municipal and industrial wastewater applications.

According to the manufacturer, the units’ hardened materials of construction stand up to rough handling and gritty water. Maximum wear resistance translates to reduced maintenance and extended service life.

Specific Features and Capabilities

  • RAD-AX Dual shredding technology (patent-pending) that incorporates radial and axial shredding elements of hardened 440C stainless steel with a Rockwell hardness of 55C plus.
  • Shredding system efficiency to alleviate a potentially high surge load to the motor.
  • Efficient, high-solids-passage impeller and volute design, coupled to a high-torque 4-pole motor (2, 3, and 5 hp).
  • Oil-lubricated double mechanical seals and separate lip seal.
  • Heavy-duty SOOW power and Seal Minder cable for early-warning moisture detection.
  • Trimmed impellers (two options per SKG model that offer expanded hydraulic coverage).

Winding protection and (NEMA) Class F motor insulation allow motor temperatures to rise 239 F, which is superior to pumps with Class A and B insulation. An automatic thermal switch turns the pump motor off if the temperature and/or amp draw rise too high. When the motor cools, the switch will automatically reset and the pump will turn back on.

To learn more, CLICK HERE for a video of these pumps in action, or visit bjmpumps.com

 

33

12:08 am
March 23, 2016
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Baldor RPM PD Series of DC Motors Offers Alternative to Rewinds or AC Conversions

Screen Shot 2016-03-22 at 6.46.14 PMAccording to Baldor Electric Co. (Fort Smith, AR), its recently introduced RPM PD series of DC motors offers an alternative to rewinds or expensive AC conversions.

The performance of these power-dense, low-profile units has been enhanced with an optimized armature design that produces full power over extended speed ranges, smooth torque transitions, and minimal cogging during low-speed operation. Longer-length standard brushes with a mechanical monitoring system lead to increased run time between scheduled maintenance shutdowns. Standard brushes are placed in a rotatable brush gearing system with a “snap point” alignment pin that simplifies change-outs.

Available in Totally Enclosed Air/Water Cooled (TEDC-AW) and Totally Enclosed Air/Air Cooled (TEDC-AA) models and a variety of enclosures, other features/capabilities include:

  • 125-1,200 horsepower
  • NEMA base speeds
  • Drip-proof force vent (DPG-FV)
  • Shaft grounding brush standard on drive end

 

102

6:02 pm
March 18, 2016
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Final Thought: RCM — Great Tool or Ravenous Monster?

By Dr. Klaus M. Blache, Univ. of Tennessee, Reliability & Maintainability Center

Reliability-centered maintenance (RCM) is a process designed to establish the safe minimum level of maintenance for each piece of machinery/equipment in a facility. It’s concerned with maintaining functionality of individual components in an entire system. Many companies are aspiring to do it. Others are doing it partially. A smaller number do it regularly. Some start and then stop. What’s going on?

While there are superficial variations of the methodology to differentiate for marketing and some differences between full or classical RCM and shortened versions, should RCM really stand for “resource-consuming monster?” Let’s first look at some key historical documents.

As summed up on the back cover of John Moubray’s 1997 RCM2 book Reliability-Centered Maintenance, (Industrial Press, New York), RCM is “a process used to determine systematically and scientifically what must be done to ensure that physical assets continue to do what their users want them to do.” RCM2 knowledge came from early studies in the military.

One of the most referenced documents is the 1978 U.S. Department of Defense AD-A066579 Reliability-Centered Maintenance report by Stanley Nolan and Howard Heap (both with United Airlines). Their study generated the six failure curves you see in every RCM-related presentation.

Showing that age-related failures account for only about 11% of all failures drives much of the optimization of maintenance tasking. In 1996, the NAVAIR 00-25-403 report introduced Guidelines for the Naval Aviation Reliability-Centered Maintenance Process.

I’m personally familiar with SAE JA1011 (1999), which provides the minimum criteria for what should be in an RCM process. My reliability and maintenance team at General Motors was involved with Ford, Chrysler, Boeing, Caterpillar, Pratt & Whitney, Rockwell International, and many other contributing organizations to create a reliability and maintainability guideline. The result was a 1993 publication by the National Center of Manufacturing Sciences Inc., Ann Arbor, MI, and the Society of Automotive Engineers (SAE), Warrendale, PA. It was titled Reliability and Maintainability Guideline for Manufacturing Machinery and Equipment (publication M-110).

Regardless of the RCM process you plan to use, know that it will consume scarce operational and support resources. It’s important to determine what time is available and put it in your business plan.

An RCM analysis, among other things, requires an FMEA (failure modes and effects analysis) and concludes with PM optimization (selecting the best failure-avoidance strategy). Preventive maintenance (PM) optimization is a streamlined methodology that identifies failure modes and develops PM tasks to minimize/avoid failures.

Based on your improvement needs, allocate adequate time for each level of RCM. For critical and complex issues, do full RCM. For moderate issues, do an overall FMEA for similar equipment/components. For less-critical areas, just doing a PM optimization will be a good start. This approach can free up resources to do more crucial problem solving and predictive and preventive tasks. Identifying the annual total time available can help prioritize the levels of analysis to do.

I’ve found that if sufficient time is spent preparing for classical RCM, boundaries are clearly identified, and scope-creep is managed during the event, full RCM doesn’t take much longer than shortened versions. Even simple things done prior to an RCM event, i.e., completing, with participant input, a draft of the three ranking scales (severity of problem, likelihood of occurrence, and likelihood of detection) can save time. If you start RCM/FMEAs without an implementation strategy, the resource-consuming monster will swallow you.

Many RCM-process variations can work if they follow SAE JA1011 and are conducted under the proper circumstances. You must do adequate readiness investigation and preparation, however, to understand the limits, risk, and consequences of your chosen path. Used correctly, RCM is a great tool. MT

Based in Knoxville, Klaus M. Blache is director of the Reliability & Maintainability Center at the Univ. of Tennessee (UTK), and a research professor in the College of Engineering. Contact him directly at kblache@utk.edu.

45

5:55 pm
March 18, 2016
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Going With the Grain

Unloading Corn

Advanced monitoring and diagnostics help a large-scale grain manufacturer improve its maintenance processes.

You never know what you might see while driving down a country road: a herd of grazing cattle, a quaint produce stand, or a beautiful beam of sunlight shining through massive towers on a grain farm. Looking at those picturesque storage bins in the haze of a mid-summer afternoon, you might not realize they can contain as much as $4 million worth of product. Imagine the impact on a farm or grain elevator and the safety issues for those working at the facility if something were to happen to the grain.

Delivering harvested grain to storage bins and ensuring that ideal conditions exist inside such units are two major components of a large-scale grain manufacturer’s operation.

Delivering harvested grain to storage bins and ensuring that ideal conditions exist inside such units are two major components of a large-scale grain manufacturer’s operation.

The challenge

Delivering harvested grain to storage bins/silos and ensuring that ideal conditions exist inside such units are two major components of a large-scale grain-manufacturing operation. Once harvested, grain is moved from storage trucks or containers on the ground to the top of the large storage bins. From there, it is either dumped into a bin or transported across a conveyance system that connects multiple bins. These systems, which run across the tops of the storage bins, make it possible to fill multiple units from one conveyance system. Over time, the system’s many moving conveyor parts can fail or slip.

Moving the grain to the storage bin is only half the battle. The other half is ensuring that the product is properly stored.

Once grain has been safely transferred to a storage bin, temperature becomes a potential concern. If the temperature inside these bins is too high, it can cause issues with the grain quality. Factors such as an insect infestation or moisture, which causes fermentation, can contribute to temperature spikes. In addition, and in extreme cases, these high temperatures can also cause hot spots in the grain, which can lead to unexpected combustion inside the bin.

The solution

Ensuring that all bin systems—inside and outside—are running reliably and efficiently, and maintaining proper operating conditions, is essential to minimizing downtime and preventing losses. That’s why some advanced grain-storage facilities are implementing a combination of remote-monitoring software and sensors to provide in-depth insights into their operations. With this technology, they are able to monitor temperature increases inside grain bins, as well as component wear and overall operations on conveyance systems. Collected data provide a better understanding of how their systems are functioning and what aspects may require maintenance.

This was the case with a grain manufacturer with operations across the central U.S. Due to the size of the enterprise, diagnosing problems in conveyor systems or storage bins would be a time-consuming and costly process. The company chose to implement hazard- and temperature-monitoring solutions from TempuTech (Byhalia, MS), a provider and original-equipment manufacturer (OEM) of grain-management systems, to take its monitoring and diagnostics capabilities to the next level.

One of the biggest problems facing TempuTech’s services organization, however, was the amount of “windshield time” that it could take to complete the diagnostics process, obtain parts, and complete a repair for its customers. When a problem occurs at a customer’s facility, that relaxing, scenic country drive is soon replaced with multiple trips back and forth to figure out what’s wrong and to take the necessary steps to quickly get the operation back to normal.

First is the trip to the facility to determine the source of the issue, then back to get the right parts—or, in some instances, waiting on site for as many as two days for the necessary parts to be delivered—and finally, back to the site to begin the repair or replacement. All the while, grain-facility management is losing money from a shutdown.

To combat these problems, TempuTech selected GE’s Equipment Insight solution, powered by the cloud-based Predix diagnostics platform, to augment its existing offerings. Equipment Insight is an out-of-the-box remote monitoring and diagnostics solution designed to help OEMs and their end customers improve system performance, grow profits, and reduce operating costs. An Industrial Internet solution, it allows OEMs to securely collect and analyze machine data from intelligent devices in the field and to relay key information to their employees and end users. The system offers on-site viewing, virtual monitoring through a secure cloud environment from mobile devices or browsers, and the ability to control grain-transfer operations across a facility.

For TempuTech, Equipment Insight enables improved visibility into asset health and better monitoring capabilities of its solutions; ultimately streamlining its maintenance processes, providing better service and support, and enhancing their relationships with end customers. While its hazard- and temperature-monitoring systems already provided improved capabilities and valuable data for the grain-handling facility, supplementing them with GE’s Equipment Insight solution took the site’s monitoring and diagnostics capabilities to a higher level.

Together, the two companies offer customers a comprehensive solution capable of real-time, proactive alarming; automatic backup and redundancy features; mobile capability; customizable reports; and delivery of in-depth data when alarms are triggered.

With the temperature-monitoring system in place, standardized temperature reports can be sent directly to the manufacturing-facility operator on a daily basis so that grain temperature can be reduced as needed to protect the product from contaminations, infestations, and hot spots.

Moreover, with the hazard-monitoring system, the operator can now pinpoint problems in the conveyor systems, i.e., belt misalignment and slippage, speed variation, and overheated bearings, thus enabling maintenance to be performed as it is needed and before a large-scale shutdown is required.

Through the pairing of TempuTech’s temperature- and hazard-monitoring systems and GE’s Equipment Insight solution, grain-facility managers can analyze a combination of compiled information and turn it into actionable insight. This ability has helped TempuTech improve its services capabilities in that it is now able to identify problems faster and more efficiently while providing increased visibility into the health of a customer’s assets. It can also schedule service and maintenance before downtime occurs—before the grain manufacturer even knows there’s a problem.

With the data collected and analyzed by the solutions, TempuTech can show up onsite with the right parts in hand, the moment that an issue is detected, reducing windshield time for its employees and repair time and costs for its customers.

Diagnosing problems in grain conveyor systems can be a time-consuming and costly process.

Diagnosing problems in grain conveyor systems can be a time-consuming and costly process.

The result

In leveraging GE’s Equipment Insight, TempuTech is transforming its business model from being a break/fix maintenance provider to a proactive partner, helping to eliminate unplanned downtime and increase productivity for its customers. Additionally, its pilot customer, the large-scale grain-handling operation, expects to improve its asset performance, reduce unplanned downtime, and improve decision-making effectiveness.

Based on this pilot implementation, TempuTech plans to offer an integrated system that controls all aspects of a grain-storage facility, i.e., one that combines different applications, devices, sensors, databases, and systems into one mobile-accessible solution capable of starting, monitoring, and stopping key processes, when needed, and creating preventive-maintenance reports.

With its own temperature- and hazard-monitoring systems and GE’s Equipment Insight, the company will be able to provide current and future customers with a solution capable of seamlessly connecting their machines, data, insights, and people. MT

GE’s Equipment Insight solution is part of the company’s Automation & Controls portfolio, which is part of GE Energy Connections, Atlanta. For more information, visit geautomation.com.

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