Very pleased to have a recital of the illustrations....
More pictures on the order.... as I'm traveling again and away from my hard drive, I'll follow up later this week.
Very much appreciate the detail of what is contained in the photos.
Originally posted by Boilermaker9
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Today I shall try to detail the middle of bilgepumps photos the boiler front
1. I do not believe this photo is a destroyer boiler front, as 445, 692,and 710 destroyers all had 4 saturated side burners and three superheated burners. The photo shows 5 burners saturated side which is indicative higher SHP propulsion plants of cruisers, air craft carriers, and battle ships, built during the 40's era. They all had which all had the same general propulsion plant albeit higher horse power, with bigger engines and bigger boilers...of the same design and general shape, the significant difference was the length of the boilers, and the height to accommodate the extra burner, and required larger burners. The photo is perhaps a cruiser, or carrier. The Iowas had the same boilers as the cruisers and carriers but with an extended outer casing that recessed the burner front. All boilers, that I knew, larger than the destroyer had 5 burners saturated and 4 burners superheated. That said, the boiler type, overall fitting arrangement and operation are the same as the 445, so I shall go ahead and describe what I see in the image as you will find the same on a destroyer. The image was shot from the superheated side of the boiler as evidence by the three Air Registers and Burner Tubes showing (end caps painted Red). There is one Air Regester below not shown in the photo.
2. The diamond plate again and judging from the finish I would say aluminum. Note how the lagging stops on the steam piping just at the deck plate level. No lagging allowed in the bilges. Bilges painted red for contrast, although I believe it is a left over from when red lead paint was used.
3. On the left side of the image is the Superheater furnace with the three Air Registers with the handles for the air doors (painted Black)This boiler has B&W Carolina Burners. The other Burner you will find on these boilers is a Todd, recognized by a large brass head with an interior door as opposed to an exterior door. The Oval door with the square Blue Glass is the burner sight glass where the Burnerman observed the the flame. The Burner Tubes (end caps painted Red) are in the center of the Air Register. The Burners were inserted into these tubes and the Quick Closing valve opened. The Quick Closing valve to the right of the end cap opened and closes completely in 1/2 turn if I am not mistaken. Root Valve not visible on left side of photo. The superheater furnace was not lit off until there was enough steam flow through the superheater to prevent the superheater tubes from overheating. This usually occurred at a speed of 10-12 kts. Superheater temp was usually maintained around 850 deg F! No automatic controls here, everything by hand including lighting off. All BT's carried matches or a lighter even if they did not smoke. most of them did not have hair on their forearms as it was singed off during light off of the superheater!
4. The Black Gage to the right was Fuel Pressure to the Superheater Burners. The Yarway Gage to the right painted silver is the steam flow indicater which measures steam flow through the superheater. The fireman kept a close eye on it.
5. The vertical white painted line (pipe) is the soot blower line to the Diamond Hand Cranked soot blower seen to the right of the soot blower line that its "head" head painted silver. The soot blower line continues upper level and the soot blower to the right of the Saturated Furnace burners and above the mud drum. The mud drum is the white circle with the large silver end cap.
6. Directly above the soot blower is the outer casing superheater access door. Remove that (about thirty Dogs and Bolts) you come to the inner door, remove that and the accompanying refractory and you come to the superheater tube bends.
7. The line that is painted red is the Fuel Oil Manifold which supplies the Saturated Furnace burners. On this manifold are installed 5 Root Valves one for each burner. There is an identical arrangement for the superheater furnace except there are 4 RootValves. The Air Register Assembly and the Burners are identical on the Superheated side. if one looks closely at bilge pump's photo you will notice the burner tube end caps are in a diagonal position look closely you can see a burner installed in all 5 burners. The brass piece under the end cap is called the "gooseneck" of the burner. Note during speed changes the fireman was a busy man changing burners to satisfy steam demand called "Batting Burners, " not an easy job by any means. As I said earlier the operation is the same even on the larger ships! Today it is all electronic/air automation and "wide range" burners! oh push button light off!
8. To the left of the burner manifold is the Draft Gage which measures the air pressure going into the boiler furnace. This is calibrated in "inches of water". Above and to the left is a red handle with a silver dial This is the "Mike Valve" (micrometer valve) it regulates the fuel pressure to the burner manifold. This my friends is the boiler "gas peddle!" miner speed changes and changes in steam demand can be regulated with this valve. However large speed and steam changes had to be dealt with by "batting burners". The burners in these boilers were not wide range and had single size sprayer plates. Only so much oil could be put through any one given sprayer plate. For this reason all ships with these boilers had excess burner barrels set up in a stand with different size sprayer plates installed all, ready to go, just for such an occasion as a flank ahead or flank astern bell or an all stop! The bridge and #1 Engineroom (Main Control) were in constant contact and through practice learned how to work together by anticipating as many changes in steam demand as possible. On the larger ships there was also a phone talker and or loud speaker system to maintain coms. Now in emergency situations common sense and plant knowledge prevailed. These guys were pros! All of them! It was by no means easy to operate these propulsion plants.
9. There are several gages above the burners and they would be Main Steam Pressure, Auxilary Steam pressure, Aux temp, Fuel Pressure, Fuel temp, and Feed Temp. These gages have been replaced many times over as all ten gages were yellow backing, pressure gages white backing
however regardless of color they would be numbered for intended purpose.
10. Well that is all I have on the Boiler front Photo. Oh to he right of the mud drum you will see the top flange a grey painted web frame.
If I bore you guys with my detail let me know and I will tone it down some. Thanks
1. I do not believe this photo is a destroyer boiler front, as 445, 692,and 710 destroyers all had 4 saturated side burners and three superheated burners. The photo shows 5 burners saturated side which is indicative higher SHP propulsion plants of cruisers, air craft carriers, and battle ships, built during the 40's era. They all had which all had the same general propulsion plant albeit higher horse power, with bigger engines and bigger boilers...of the same design and general shape, the significant difference was the length of the boilers, and the height to accommodate the extra burner, and required larger burners. The photo is perhaps a cruiser, or carrier. The Iowas had the same boilers as the cruisers and carriers but with an extended outer casing that recessed the burner front. All boilers, that I knew, larger than the destroyer had 5 burners saturated and 4 burners superheated. That said, the boiler type, overall fitting arrangement and operation are the same as the 445, so I shall go ahead and describe what I see in the image as you will find the same on a destroyer. The image was shot from the superheated side of the boiler as evidence by the three Air Registers and Burner Tubes showing (end caps painted Red). There is one Air Regester below not shown in the photo.
2. The diamond plate again and judging from the finish I would say aluminum. Note how the lagging stops on the steam piping just at the deck plate level. No lagging allowed in the bilges. Bilges painted red for contrast, although I believe it is a left over from when red lead paint was used.
3. On the left side of the image is the Superheater furnace with the three Air Registers with the handles for the air doors (painted Black)This boiler has B&W Carolina Burners. The other Burner you will find on these boilers is a Todd, recognized by a large brass head with an interior door as opposed to an exterior door. The Oval door with the square Blue Glass is the burner sight glass where the Burnerman observed the the flame. The Burner Tubes (end caps painted Red) are in the center of the Air Register. The Burners were inserted into these tubes and the Quick Closing valve opened. The Quick Closing valve to the right of the end cap opened and closes completely in 1/2 turn if I am not mistaken. Root Valve not visible on left side of photo. The superheater furnace was not lit off until there was enough steam flow through the superheater to prevent the superheater tubes from overheating. This usually occurred at a speed of 10-12 kts. Superheater temp was usually maintained around 850 deg F! No automatic controls here, everything by hand including lighting off. All BT's carried matches or a lighter even if they did not smoke. most of them did not have hair on their forearms as it was singed off during light off of the superheater!
4. The Black Gage to the right was Fuel Pressure to the Superheater Burners. The Yarway Gage to the right painted silver is the steam flow indicater which measures steam flow through the superheater. The fireman kept a close eye on it.
5. The vertical white painted line (pipe) is the soot blower line to the Diamond Hand Cranked soot blower seen to the right of the soot blower line that its "head" head painted silver. The soot blower line continues upper level and the soot blower to the right of the Saturated Furnace burners and above the mud drum. The mud drum is the white circle with the large silver end cap.
6. Directly above the soot blower is the outer casing superheater access door. Remove that (about thirty Dogs and Bolts) you come to the inner door, remove that and the accompanying refractory and you come to the superheater tube bends.
7. The line that is painted red is the Fuel Oil Manifold which supplies the Saturated Furnace burners. On this manifold are installed 5 Root Valves one for each burner. There is an identical arrangement for the superheater furnace except there are 4 RootValves. The Air Register Assembly and the Burners are identical on the Superheated side. if one looks closely at bilge pump's photo you will notice the burner tube end caps are in a diagonal position look closely you can see a burner installed in all 5 burners. The brass piece under the end cap is called the "gooseneck" of the burner. Note during speed changes the fireman was a busy man changing burners to satisfy steam demand called "Batting Burners, " not an easy job by any means. As I said earlier the operation is the same even on the larger ships! Today it is all electronic/air automation and "wide range" burners! oh push button light off!
8. To the left of the burner manifold is the Draft Gage which measures the air pressure going into the boiler furnace. This is calibrated in "inches of water". Above and to the left is a red handle with a silver dial This is the "Mike Valve" (micrometer valve) it regulates the fuel pressure to the burner manifold. This my friends is the boiler "gas peddle!" miner speed changes and changes in steam demand can be regulated with this valve. However large speed and steam changes had to be dealt with by "batting burners". The burners in these boilers were not wide range and had single size sprayer plates. Only so much oil could be put through any one given sprayer plate. For this reason all ships with these boilers had excess burner barrels set up in a stand with different size sprayer plates installed all, ready to go, just for such an occasion as a flank ahead or flank astern bell or an all stop! The bridge and #1 Engineroom (Main Control) were in constant contact and through practice learned how to work together by anticipating as many changes in steam demand as possible. On the larger ships there was also a phone talker and or loud speaker system to maintain coms. Now in emergency situations common sense and plant knowledge prevailed. These guys were pros! All of them! It was by no means easy to operate these propulsion plants.
9. There are several gages above the burners and they would be Main Steam Pressure, Auxilary Steam pressure, Aux temp, Fuel Pressure, Fuel temp, and Feed Temp. These gages have been replaced many times over as all ten gages were yellow backing, pressure gages white backing
however regardless of color they would be numbered for intended purpose.
10. Well that is all I have on the Boiler front Photo. Oh to he right of the mud drum you will see the top flange a grey painted web frame.
If I bore you guys with my detail let me know and I will tone it down some. Thanks
More pictures on the order.... as I'm traveling again and away from my hard drive, I'll follow up later this week.
Very much appreciate the detail of what is contained in the photos.
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