Diaphragm Partition Repairs

 

We just completed repairs to another set of steam turbine diaphragms!  We performed major repairs to the partitions of multiple sets of diaphragms at our Pevely, Missouri Steam Path Repair facility.  Diaphragm repairs are common during any steam turbine major inspection, and we pride ourselves on performing quality work and turning around the diaphragms quickly to keep your turbine outage on schedule.  CONTACT US today to see how we can help you with the repairs on your next set of diaphragms.  To learn more about our Steam Path Repair capabilities, please view our page HERE.

National Safety Council – One Million Hours Worked Recognition

We were recently recognized by the National Safety Council for our achievement of One Million hours worked without a lost-time injury.  This recognition is a reflection of our safety culture and commitment to excellence on each and every project.  Since this achievement, we have continued to excel and are currently at 1.875 Million hours worked and have exceeded three years without a lost-time injury.  Great job team!

 

D-11 Steam Turbine Major Inspections

The D-11 Steam Turbine is at a point in its life cycle where many Major Inspections are taking place. These units require careful attention to detail upon disassembly and reassembly of the machine, ensuring accurate clearances and proper alignment. The D-11 steam path components have many known issues for which we have developed cost effective and reliable repairs. The valve components require careful examination to ensure proper functionality between inspections. Please contact us today to discuss how we can help you plan and manage your upcoming D-11 turbine inspection.

Happy Labor Day!

7 Safety Tips for an Injury-Free Labor Day

by Shannon Scruggs – PSG Director of HSE

Labor Day is synonymous with the end of summer, and the long holiday weekend is upon us. Labor Day is typically packed with celebratory events like backyard barbecues, final excursions to the lake, picnics at the park, and beach parties. But even festive events like these present hazards you should be aware of.

Whether you’re planning a final summer outing or staying home to wrap up summer chores, we want you and your family to enjoy a safe close to the season. To help you do so, we’ve gathered these helpful Labor Day weekend safety tips.

Road-trip, anyone?

According to the National Safety Council, nearly 400 deaths result from motor vehicle collisions over Labor Day Weekend. If you’re planning a weekend excursion make sure you’re well rested, plan for frequent rest stops, and divide driving duties if possible.

Don’t forget to pack a vehicle emergency kit that contains items like a flashlight, jumper cables, a tool kit, tire gauge and flares.

Festive fireworks

Fireworks are fun, flashy and festive, but many of us overlook the injury they can cause. The National Safety Council reports that children 10 to 14 years of age are at three times the risk of being injured by fireworks than the population as a whole. Even sparklers can inflict serious injury.

If you choose to use fireworks be sure you only light one at a time, maintain the recommended distance from spectators, and never allow any horseplay while fireworks are being set up or ignited. If a firework malfunctions, don’t re-light it. Above all, never allow young children handle fireworks and never use fireworks while under the influence of drugs or alcohol.

Alcohol in moderation

Alcohol and parties often go hand in hand, but beware that drinking impacts your decision making, coordination, reaction time and vision which makes you vulnerable to a number of hazards. If you plan on consuming alcohol, setting a limit on how much you will consume. And the time to set your limit is before you arrive at the neighborhood cookout. Once you set an alcohol limit, stick to it.

Drink one glass of water in between alcoholic drinks to help keep hydrated and pace your alcohol consumption. If you drink more than you planned, ask for help getting home. Keep in mind that operating a motor vehicle after just a drink or two is dangerous.

Boating safety

Boating is a quintessential Labor Day event. Make sure you keep it safe by ensuring the boat is in good mechanical condition, and carries all safety equipment including personal flotation devices, an emergency kit and a first aid kit. Keep away from restricted areas, be sure that you’re familiar with the rules of the water and tell someone on land where you’re heading and what time you expect to return.

Conquering outdoor chores

Lots of us look forward to relaxing on Labor Day weekend, but if you’re tackling outdoor chores instead, please keep these safety tips in mind. Before you use any power tool make sure the cord isn’t frayed, that it is free of cuts and appears to be in good condition. If you need an extension cord be sure it is designed for outdoor use.

Additionally, be sure that the extension cord’s amperage can handle the demand of the power tool you’re using. Cleaning gutters, trimming trees and painting are just a few common outdoor chores that require a ladder, and ladders are notoriously dangerous.

Only use a ladder when there’s someone else at home.

Prevent food-borne illnesses

What’s a Labor Day holiday without lots of food? Picnics, barbeques, and neighborhood pot-lucks are plentiful and that means so is the chance of food-borne illness. To minimize the chance of cross-contamination, wash your hands before and after you touch raw meat. Dry your hands on paper towels instead of cloth towels, and discard immediately.

Refrigerate meat that’s waiting to hit the grill. Never leave food that requires refrigeration (think potato salad, coleslaw or chicken salad) out in the sun. Instead, set the item the bowl is in on top of a pan filled with ice, and serve from a shaded area. Return the item to the refrigerator as soon as partygoers have been served.

Also protect against COVID-19

In addition to avoiding food-borne illness, follow current CDC recommendations for cleaning surfaces and navigating social interactions to lessen the chances of coronavirus spread.

Hydration and sun protection

Soda and juice might be a bit tastier, but you should hydrate your body with water instead. If you’re having a party, set out a few tubs full of bottled water and encourage your guests to drink small amounts often. Remember the golden rule: If your urine is yellow, you’re not drinking enough water.

It’s the end of summer, but in many parts of the country the sun is still raging. Apply sunscreen before you head out in the sun and reapply as necessary. Remember that the elderly and the young have especially sensitive skin and don’t forget that some medications can increase your skin’s sensitivity to the sun.

Whether you’re splashing in a pool, enjoying the ultimate picnic or knocking out those household chores, we want you to stay safe this Labor Day weekend. Remember: An accident is never planned. But keeping these safety tips in mind may help prevent one.

Have a Happy and Safe Labor Day!

Remember: Hazard Awareness + Hazard Mitigation + Focus = Zero Injuries

Steam Turbine Valve Repair and Reconditioning

We offer a variety of repair and reconditioning services for all types of steam turbine valves. if you are in need of repairs on any of the component types listed below please don’t hesitate to give us a call. We’d love to work with you!

We Repair:

  • Main Steam Stop Valves
  • Governor / Control Valves Throttle Valves
  • Intercept Valves
  • Ventilator Valves
  • Blowdown Valves
  • Equalizer Valves
  • Combination Valves
  • Butterfly Valves

Valve Reconditioning Including:

  • Bonnet bore refurbishment
  • Butt Weld Modifications
  • Seat removal and replacement
  • Deep bore welding for valve seats
  • Stud extraction and hole refurbishment
  • ASME Section IX weld repairs
  • R-Stamp welding
  • Flange face resurfacing (including elliptical)
  • Field machining processes for all sealing surfaces and fit areas
  • Manual and Automatic hard facing of seats and discs

Combustion Turbine Operators Technical Forum (CTOTF) Conference – Virtual Tradeshow

We’re excited for this week’s Combustion Turbine Operators Technical Forum (CTOTF) Conference! We have our virtual booth ready and we are looking forward to meeting with everyone throughout the week.

Dresser-Rand Steam Turbine Major Inspection

 

Another Steam Turbine Major Inspection complete!  Our Industrial Steam Turbine Services Division completed a Major Inspection on a 15MW Dresser-Rand Steam Turbine late last month.  The project was completed with zero injuries, and ended with another satisfied customer.  Great job team!

Stud Hole Repair/Restoration

We were recently contracted by an industrial customer in the Midwest to repair stud holes on a piece of equipment at their facility.  This is a common repair we perform, and is executed utilizing our specialty equipment and skilled technicians.  The photos below will show the mill that is mounted to the face of the surface that will have the stud hole repaired.  The hole is bored and tapped, and a threaded insert is installed.  Great work by our team!

Allis-Chalmers Industrial Steam Turbine Major Inspection

Power Services Group (PSG) was contracted by an industrial customer in the Midwest U.S. to perform a major inspection of their Allis-Chalmers steam turbine generator.
This unit is a non-condensing steam turbine that is directly coupled to an Allis-Chalmers air cooled generator. The turbine and generator set are of a three-bearing
design.

During the project, a Safety Meeting was held prior to the start of any work. The Safety Meeting topics were based on work activities to be performed during the shift. In addition, hazardous observations which could impact the safety of the team were discussed and resolved. Prior to performing work, a Job Safety Analysis (JSA) form was completed by the work team. This project had no accidents and no first aid incidents.

The steam path components, once removed, were dust blasted and received nondestructive examination (NDE). The NDE revealed minor indications on the stationary blading, and no repairs were deemed necessary at this time. The turbine rotor and stationary stage 6 were shipped to our steam path component inspection and repair facility in Pevely, Missouri for replacement of the 7, 8, 9 and 10 rotating blades, and repairs to the #6 stationary stage.

The generator field was removed from the stator and both the generator field and generator stator, received visual inspections and electrical testing. The generator field was shipped out to receive a retaining rings-off inspection. The stator was ice blast cleaned, received a re-wedge of the stator core windings, and final coated with an insulating epoxy.  The journal bearings were removed and visually and dimensionally inspected and received dye-penetrant and ultrasonic testing. Inspections revealed that all of the bearings, new and in service, were in excellent condition. The pedestal oil deflectors were removed and visually and dimensionally inspected. All were found to be beyond industry standard clearance tolerances and were replaced.

The inlet control and extraction control valve racks were removed, cleaned and visually and dimensionally inspected. The valve poppets and seats were NDE inspected and found to be in very good condition and were returned to service. Some of the valve linkage bushings and pins were found to be worn and were replaced. The trip throttle valve (TTV) and operator were removed, disassembled, cleaned, and inspected. All inspections were approved and the components were returned to service. The lube oil cooler was removed and replaced by plant personnel. The lube oil system shaft driven main and steam driven auxiliary oil pumps were removed and received inspections. The main oil pump (MOP) and the steam driven auxiliary oil pump, (AOP) were found to be in good condition and were reassembled and returned to service. The lube oil reservoir was opened by PSG and initially cleaned by plant personnel. Some sediment and sludge were found during the initial cleaning of the lube oil main reservoir. PSG performed a final vacuum and hand cleaning of the interior of the reservoir prior to the lube oil system high velocity oil flush (HVOF). A lube oil system HVOF was performed utilizing an external pump and heating/filtering skid. The flush was ran for approximately 72 hours and was completed once system cleanliness was acceptable.

The system trip devices were inspected, cleaned and flushed; all linkages were checked for wear and proper freedom of movement. The mechanical over speed trip test was completed after initial startup and the unit was later tied on-line. PSG personnel demobilized the job site and were released to travel after another successful project startup.

Zero safety incidents, quality work, Nice job team!