Technology and Operations  
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Re: Air Compressors
Posted by: Scott ()
Date: September 27, 2002 03:42PM

Steve,

Here is some information about the Air Compressor. This information is for the type IXC submarines only.

Compressed air plants consists of one four-stage reciprocating air compressor driven by an electric motor, one Junkers free piston engine operating a four-stage air compressor, and related flasks, piping, manifolds and valves. Both compressors are located in the maneuvering room. The manifold is located in the control room.

The motor weight 1700kg (3750 lb) and is rated at .56 to 62 kw on a voltage range of 110 to 170 volts, with a related speed ramge of 535 to 600 rpm.

The direct-connected compressor weights 1155 kg (2440 lb) takes 76 to 84 PSe (75 to 83 H.P) depending on revolutions and is rated at 14 to 15.4 liters per minutes (.493 to .543 cu.ft. per minute) The discharge pressure of the air is 205 kg/cm2 (2920 psi).

The Junkers compressor consists of a free piston diesel engine and compressor in a common housing. The assembled weight is 560 kg (1234 lb.) excluding muffer, tail pipe and insulation. I t operates at 780 to 840 rpm, and is rated at approximately 50 horsepower.

The related compressor is rated at an effective air intake of 2 cu. meter per minute (70.6 cu. ft. p.m.) and a dischrage of 10 liters per minute (.353 cu. ft. p.m.).

The air flasks have a total capacity of 6200 liters (219 cu. ft.) at 2920 p.s.i. This is sufficient air to evacuate all main ballast, fuel ballast and bow and stern buoyancy tanks once at a depth of 180 feet, or 5.65 times the free air volume of these tanks. Most of them are located in the superstructure, but six flasks which are part of four banks are located in the maneuvering room and engine room.

The maximum operating pressure of the system, as has been stated, is 2920 p.s.i.

The high pressure air manifold is a steel housing to which steel valve housings are welded. Valve bonnets are a special bronze, spindles steel, discs steel, springs phosphor bronze and threaded seat insert is 18/8 chrome nickle steel. Air piping is copper plated steel. Material for valves are the same as those for the manifold.

Will, I hope this helped in some small way. Good Luck

Scott

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Subject Written By Posted
Air Compressors steve 09/24/2002 04:33PM
Re: Air Compressors Sniper 09/24/2002 04:51PM
Re: Air Compressors/Correction Rainer Bruns 09/25/2002 12:50AM
Re: Air Compressors Scott 09/27/2002 03:42PM
Re: Air Compressors Malcolm Wardlaw 10/22/2002 08:25AM
Re: Air Compressors lysergic 10/22/2002 09:23AM


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