pa1778data.pdf

More documents

Recommendations

Info

$lit- \NBS)NE/$

• U.S. STEEL DUQUESNE WORKS HAER NO, PA-115 (Page 245) X. High Purity Linde Oxygen Making System (MR-IQOO Plants: The equipment making-up the high purity oxygen making system (99.5 percent pure oxygen) is located in Blow Engine House No. 1 and just east of the Central Boiler House between Blow Engine House No. 1 and Blow Engine House No. 2. Located inside of Blow Engine House No. 1 at its western end is a large two stage Allis- Chamlers compressor (1st stage axial, 2nd stage centrifugal) which is driven by a Worthington steam turbine. The first stage of the air compressor is rated at 125,000 cfm, while the second stage is rated at 44,400 cfm. The steam turbine is rated at 10,250 hp. Air entered the first stage of the compressor after passing through a small filter house located in the northwest corner of the building. Compressed air left the second stage of the compressor through an approximately 2• diameter pipe that extends along the eastern wall of the Central Boiler House before turning into an approximately 10 f diameter x 50* long surge tank located on the roof of a two story cinder block building, just east of the various towers used for separating out the constituent elements of the compressed air. After passing through the surge tank, which dampens pressure fluctuations in the system, the air was led to the two reversing heat exchangers and three nitrogen regenerators located alongside each of the MR- 1000 plant's two fractionating towers. The fractionating towers are each composed of an upper and lower column separated by a condenser. The approximately 20' diameter x 50' high reversing heat exchangers and nitrogen regenerators were used to cool down the compressed air to temperatures of -300° F. This was accomplished in the regenerators by running the incoming air against outgoing waste nitrogen which deposited moisture, carbon dioxide, and most of the hydrocarbons as solids in the regenerator packing. That portion of the compressed air which was directed to the reversing heat exchangers is cooled against the outgoing oxygen and high purity nitrogen products respectively. Both the reversing heat exchangers and the regenerators have side bleed take-off points which passed about 15 percent of the air through one of two 5' diameter x 15* high side bleed gel traps located near each fractionating tower for the removal of any remaining carbon dioxide and hydrocarbons. The air that left the cold end of the reversing heat exchangers and the regenerators (about 85 percent of the total) passed through one of two 5' diameter x 15* high cold end gel traps located near each fractionating tower for the same purpose. Most of the air which left the side bleed gel traps flowed to one of two expansion turbines (one at each fractionating tower) where the temperature is lowered by expansion to near the liquescent point. From the turbines the air was fed to the upper
A U.S. STEEL DUQUESNE WORKS W HAER No. PA-115 (Page 246) level of each fractionating column at tray forty-five where it provided the refrigeration for the cycle. The remainder of the air from the side bleed gel traps was fed to the lower column of its respective fractionating tower (below tray 1) where it was rectified or distilled in order to obtain high purity liquid nitrogen for reflux to the upper column. The air vapor from the cold end gel traps entered the bottom of the lower column, which was composed of sixty-three trays, and rose through twenty-three trays where it was rectified into nitrogen vapor. The nitrogen vapor then passed through the lines connecting the lower column with the high pressure side of the main condenser. It flowed into the condenser where it was liquefied by the refrigeration supplied by boiling liquid oxygen on the other side of the condenser. A portion of this nitrogen liquid was then fed to the lower column at tray twenty-three while the remainder flowed through the shelf nitrogen subcooler where it was cooled and subsequently fed to tray sixty-three. Liquid is also taken from the kettle of the lower column and fed into the upper column at tray fifty-one. ^P The upper column contains sixty-three trays similar to those in the lower column. Liquid flows down across the trays to the oxygen side of the condenser where it was vaporized. This vapor, rising from the condenser to the upper column, flowed up through the sieve type trays bubbling through the liquid that was flowing down, causing a nearly complete separation of the air into 99.5 percent pure oxygen at the bottom and approximately 99 percent pure nitrogen vapor at the top of the upper column as waste nitrogen. Waste nitrogen left the upper column in two streams. One stream flowed through the three-core section of the waste nitrogen heat exchanger where it was used to cool the liquid shelf nitrogen from the main condenser and liquefy some air which was fed to the lower column at tray three. The second stream of waste nitrogen left the upper column above tray sixty-three and flowed through the two-core section of the waste nitrogen heat exchanger where it was also used to cool the shelf liquid that was being fed to the upper column and to cool the side bleed air which was then fed to the lower column below tray one. After leaving the heat exchangers, the waste nitrogen flowed to the nitrogen regenerators and reversing heat exchangers where it gave up its refrigeration to the incoming air. Product gaseous oxygen was taken from the upper column just under tray one and passed through the oxygen superheater where it A was used to liquefy a portion of the cold end air. After leaving ^^ the superheater, the oxygen was fed to the reversing heat
Page 1 and 2:
U.S. STEEL DUGUESNE WORKS HAER Wo.
Page 3 and 4:
U.S. STEEL DUQUESNE WORKS HAER No.
Page 5 and 6:
U.S. STEEL DUQUESNE WORKS HAER NO.
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
# U.S. STEEL DUQUESNE WORKS HAER NO
Page 15 and 16:
Page 17 and 18:
• U.S. STEEL DUQUESNE WORKS HAER
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
FART THREE: 1946-1988 U.S. STEEL DU
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
seeks to develop it into an industr
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
• northern wall and 27'-0" from t
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Installation Date: 1955. U.S. STEEL
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
cooling tower has a capacity of 190
Page 91 and 92:
* * tunnel beneath the clarifier. I
Page 93 and 94:
* U.S. STEEL DUQUESNE WORKS HAER No
Page 95 and 96:
Page 97 and 98:
# U.S. STEEL DUQUESNE WORKS HAER No
Page 99 and 100:
* U.S. STEEL DUQUESNE WORKS HAER No
Page 101 and 102:
# » U.S. STEEL DUQUESNE WORKS HAER
Page 103 and 104:
• # # U.S. STEEL DUQUESNE WORKS H
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Historic Name Present Name: Locatio
Page 115 and 116:
dumped. Construction Date: 1957. U.
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
B. Hoist House,: U.S. STEEL DUQUESN
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Historic Name: Present Name: Locati
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
STEELMAKING PLANT - HEAT TREATMENT
Page 185 and 186:
Page 187 and 188:
and is set into the floor of the bu
Page 189 and 190:
Page 191 and 192:
STEELMAKING PLANT - BASIC OXYGEN U.
Page 193 and 194:
Page 195 and 196: U.S. STEEL DUQUESNE WORKS HAER No.
Page 199 and 200: • U.S. STEEL DUQUESNE WORKS HAER
Page 205 and 206: construction carbon and alloy steel
Page 209 and 210: U.S. STEEL DUQUESNE WORKS HAER NO.
Page 243 and 244: # U.S. STEEL DUQUESNE WORKS HAER No
Page 245: # U.S. STEEL DUQUESNE WORKS HAER No
Page 249 and 250: * U.S. STEEL DUQUESNE WORKS HAER No
Page 251 and 252: A U.S. STEEL DUQUESNE WORKS W HAER
Page 253 and 254: # U.S. STEEL DUQUESNE WORKS HAER No
Page 255 and 256: • • U.S. STEEL DUQUESNE WORKS H
show all

pa1778data.pdf

Create successful ePaper yourself

Delete template?

Save as template?