Favorites Post #85
Originally posted May 16, 2015
Sometimes we unknowingly end up worshiping things we never intend. It isn’t until those things are destroyed before we realize what has happened. We have a natural tendency to worship something.
It’s built into our DNA to worship God just as sure as the God Particle converts energy into matter and subsequently protons and electrons into atoms and atoms into earth and water. I’m not sure when my obsession began, but I definitely know the day when it was destroyed. August 5, 1996.
The day of realization began as a normal day, as Scott Hubbard and I were driving to the plant. It seemed like an extra dark morning considering it was the middle of the summer. Perhaps it was because by this time we were working four tens, which meant we arrived at the plant before 7:00 am so we left Stillwater, Oklahoma at 6:15 to drive to the coal-fired Power Plant in North Central Oklahoma.
When we topped the overpass to the turnpike at 6:32 we thought we could see something strange at the Power Plant off in the distance. The sun was going to rise in the next few minutes (at 6:42), yet, the sky seemed darker than usual. It must have been a cloudy morning.
We thought we could see red and blue flashing lights coming from one end of the plant. It was only momentary, because once over the overpass, we were too low to see that section of the plant. We weren’t really sure what we had seen. It became even more confusing as we approached the entrance to the plant.
There seemed to be a little more activity happening at the front gate than usual. there was a guard or an operator standing out there. He waved us through the gate. about 300 yards past the main gate, we had a clear view of the plant grounds laying before us as we made our way to the parking lot. It was here that the significance of the flashing lights suddenly caused us to gasp. We were stunned into silence.
The area around the Unit 1 main power transformer was flashing with the red and blue lights of several fire trucks. They seemed to be pulling away just about that time. Some of the siding on the Turbine-Generator (T-G) room was missing, some was blackened from smoke as it had poured out of the windows along the turbine room floor. The real shock to me came as we approached the parking lot and I looked up through where a window used to be and I could see the sky. I could see the sky where the T-G roof should have been.
We were directed to go into the maintenance garage to avoid the fire trucks who that were backing away. We met with our team and Alan Kramer told us that there had been an explosion during the night when an overspeed test was being performed on the Unit 1 Boiler Feed Pump Turbine (BFPT). The number one question we all wanted answered was quickly given to us…. No one was hurt in the explosion.
Alan mentioned that in our recent fire fighter training, we had learned that a large percentage of companies that have a major fire (such as ours) goes out of business within the next year. That was not going to happen to us even though the damage was extensive. Our job was to put everything back to the way it was before the fire.
Here is the story as it happened, as much as I know:
The explosion occurred when an operator (I’ll let one of the operators remind me who it was) was running an overspeed test on the BFPT. Suddenly he heard a loud pop and then the turbine winding up out of control. He took off running and was around the corner of a concrete pillar when the turbine exploded.
The turning gear shot out like a top and flew across the mezzanine floor, hit the corner of the north stairway, and still spinning like a top, tore up the stairway as it made the turn halfway down and ended up in middle of the the T-G basement where it finally came to rest. This turning gear weighs somewhere in the ballpark of a thousand pounds (I’m guessing).
At this point steam was shooting out of the Boiler Feed Pump Turbine. The oil pumps that keep the bearings lubricated were spraying oil into the steam which burst into flames. The flames shot up to the concrete floor 40 feet above. The fire was so hot that it melted the metal structure holding up the floor and the rebar in the concrete.
The Turbine Room Floor literally melted away as the oil fire shot the flames up toward the roof another 80 feet above the turbine room floor (equivalent to 8 stories) melting the roof as if it was butter. The asbestos siding on the T-G floor was falling off because the bolts that held them to the brackets literally melted away.
The same reservoir that feeds the oil to the the Boiler Feed Pump Turbine bearings also fed the Main Turbine Generator. This is the same generator that makes the electricity that causes the light bulb to glow in your house when you turn it on. The Main Turbine Generator tripped when the explosion occurred, as it should. As it slowed down to a stop, the oil for the bearings was all gone. It had been creating the large fire ball that was melting down the T-G floor.
Normally, when the Turbine-Generator comes to a stop, it is put on a turning gear while the shaft cools down otherwise the shaft will become warped under it’s own weight. The Turning gear slowing rotates the turbine for a day or so while it cools. Without bearing oil, the turning gear would not be able to turn the turbine generator. The bearings require a layer of oil to function properly.
Charles Patton, one of the Maintenance foremen was called out, and he took cans of STP Oil Treatment and for hours poured them onto the bearings and manually rotated the 50 ton turbine generator (Ray, help me out with the actual weights). Through the heroic efforts of Charles and others that were there to help, the Turbine Generator was spared from even more damage.
By the time we arrived that morning, the fire was out, things were cooling down. Unit 2 was still running, and it was our job to keep it going.
As I walked out onto the T-G floor everything went into slow motion. I don’t know if that has ever happened to you before. There have been a few times in my life when I was in a near death situation where my surroundings all seem to switch into a slow motion mode. I think it happens because your brain kicks into high gear in order to process what is happening and to put as much effort forward as possible to avoid danger.
The first time I think that happened to me was when I was with some friends climbing around on some cliffs by the Missouri River. One boy was falling back after the ledge he was on gave way and was going to fall most likely to his death when everything switched into slow motion even before I realized what was wrong. I was able to make quick decisions that allowed me to push him back onto the ledge and grab onto a branch that luckily kept me from the same fate.
When I walked onto the T-G floor and saw the devastation, I think my mind was trying to take everything in all at once. The Turbine Generator was covered in soot and debris. I flashed back to the days when I was a janitor and used to keep the turbines waxed so that they would shine. It was at this moment that I realized I actually worshiped the Turbine Generators in a way similar to the way the religious cult worshiped the alpha-omega doomsday bomb in “Beneath the Planet of the Apes”.
The near destruction of the Turbine Generator made me realize the importance I had placed on it. I felt as if I had almost lost my close friend like the boy climbing on the cliff. I used to stand on the sides of the Turbines when I was a janitor with my dust mop and after spraying furniture polish on the mop, I would caress the turbines as if I was running my fingers through someone’s hair.
We began the clean up by taking fire hoses and washing down the siding on the Unit 2 side to try to bring some normalcy back to a surreal situation. The soot didn’t just wash off. Not long after we had dragged out the fire hoses and were blasting away at the siding, Alan Kramer asked Charles Foster and I to look at the air duct to the Instrument room on the north side of the Turbine room. The room was getting too hot and the air conditioner seemed to have frozen.
We climbed into the air duct on the roof of the instrument room and replaced the filters that were packed with soot stopping the air flow for the Air Conditioner. This seemed like one task in 100,000 that would need to be done to put this puzzle back together again. All the electric cables that ran through the Unit 1 Mezzanine had melted away, everything had been utterly destroyed.
The thought was too overwhelming. I felt like Scarlet O’Hara in “Gone With the Wind” when she said, “I can’t think about that right now. If I do, I’ll go crazy. I’ll think about that tomorrow.”
With everything on the T-G floor covered in soot, everyone was quickly black from head to toe. Are clothes were now black. We looked like Johnny Cash impersonators
literally with Al Jolsen Black Face as the soot was pitch black.
We had just climbed out of the air duct and were making our way to the electric shop when Glenn Rowland approached me and said, “You Lucky Dog!” I thought he must be making a comment about my appearance seeing how I was covered in soot. Then he explained. “For the next 10 weeks you have to report to Oklahoma City to work on an SAP project. You’re a lucky dog because you are going to miss all the fun of cleaning up this mess.”
Did I ever mention that I’m one of the luckiest people in the world? Well. I am. I had just come to grips with my false God, and now I had been rescued from two and a half months of working in soot and grime to go work in an air conditioned office building in Oklahoma City. (See the post Do Power Plant Men and Corporate Headquarters Mix?).
Here is a post about how lucky I am: Power Plant Men’s Club Prizes and a Story of Luck.
Now for the hard part of the story to write about:
So, why did the Boiler Feed Pump Turbine fail the overspeed test? What happened to cause the explosion?
The first attempt to place the blame where it didn’t belong was to blame Sonny Kendrick who had worked on the controls during the last outage. The same person that would accuse me of purposely causing any little opacity problem on the precipitator even when I was on vacation, was now blaming Sonny Kendrick for the multi-million dollar destruction of the Turbine Room Floor.
Sonny Kendrick must have looked like an easy target. A soft-spoken man that works alone most of the time. No one really understands some of the things he works on. Maybe they thought he wouldn’t be able to explain the changes he had made to the controls in enough detail in order to blame him for the explosion. I use the word “target” because someone else had to be “blamed” for the explosion instead of the person responsible. The person they picked as the “fall guy” was Sonny Kendrick:
You see… someone was directly responsible for the explosion. Someone who continuously used “Risk Management” as an excuse to cut corners. I wonder if everything was completely on the unconscious level, or did this person ever realize the impact of his decisions. You see, I haven’t completely decided.
There appears to have been a conspiracy to cover up the truth about the explosion that took three months to recover. The first clue was to try to blame Sonny Kendrick without any proof. I do know if Sonny was eventually cleared as the fall guy because he was able to clearly show how all of his wiring changes had no impact on an overspeed test, or someone who knew about the actual cause threatened to come out with the truth if they continued to pursue Sonny as the fall guy. You see… there was more to this equipment failure than met the eye.
The turbine exploded because the coupling to the pump shattered. That’s the part that connects the steam turbine to the boiler feed pump. When the coupling broke the turbine, no longer having any resistance, began to rotate at a rate much faster than it was ever designed to rotate until it flew apart.
It was known at the end of the last outage that the coupling was damaged. It would have delayed bringing the unit online another 2 or 3 days in order change out the coupling. In the name of “Risk Management” it was decided to “risk it” until the next outage. The decision was made without using any type of risk assessment tool… obviously.
I know about the conversations that took place because one of the people involved confided in me. The person that told me the details of the conversations said that even under oath he would never tell anyone else the truth. This is the second clue that made me think that a concerted effort was made to cover up the knowledge that it was known that a faulty coupling was operating on the Boiler Feed Pump Turbine and it had been decided to leave it in place. You see… everyone who was on the team that found the damage knew about it.
The third clue this was a “conspiracy to cover up the truth” was that when an investigation was performed to look into the cause of the explosion, the person responsible for keeping the bad coupling in place played a major role in the investigation. Like the Fox guarding the Hen House.
Because the truth about the coupling never came to light, the insurance company ended up paying the entire bill for the outage. It was ruled as “equipment failure”. Our plant manager Bill Green remarked one day that we actually came out ahead when the insurance company paid for the outage, because they paid our lost revenue without taking all the operating costs into account.
I know sometimes that things just happen and sometimes bad things happen. Sometimes when everything is done correctly, something still goes wrong. I know that. That is why when this explosion first happened it made me step back and think twice about the dangers lurking around a Power Plant. A tremendously large amount of energy is being converted from coal into electricity. Somewhere, some time, something is going to go wrong and someone is going to be hurt or killed.
That is also why when this explosion happened, it never occurred to me to place the blame on anyone. To me it was just one of those things that happens every now and then. My bubble of innocence was burst the day I heard about the decision to keep a defective coupling in place on such an important piece of equipment.
On one hand I was angry that someone would make a decision that could have ended with the death of an operator, on the other hand, I was relieved to know that accidents like this don’t just happen. It was only when someone decided to cut corners that this explosion occurred. It gave me a little of my faith back in the system. When things are done right, we can work safely without the fear that something is likely to explode in our face.
All right, so I never really worshiped the Turbine Generator. I just exaggerated that part a bit. But let me ask this question… Who in this story did? Who was it that was willing to sacrifice the life of an operator to keep from delaying the “go-live”? Who thought that having the Generator produce electricity two or three days sooner than it should have been was more important? That is the person that really needs to re-evaluate their priorities and take another look at which God they worship.
The question is never, “Is there a God?” The real question is “Which God do you worship?”