Liquid Oxygen Plant 2000nm³/h Large Skid Mounted Air Separation Plant Equipment
99.6% Air Separation Plant KDO 2000Y Industrial Oxygen Plant With Low Energy Consumption
-
Annex 1. Plant design basis (need buyer’s confirmation)
Design point of Atmosphere
Ø Atmosphere pressure
101.3kPa(A)
Ø Atmosphere tempt.
30℃
Ø Relative humidity
75%
Ø O2 contained in air
20.95% O2
Atmosphere tempt.
Ø Annual average tempt.
18.4℃
Ø Max. Tempt.
40℃
Ø Min. Tempt.
-1.8℃
Ø Summer average tempt.
30℃
Ø Winter average tempt.
7.5℃
Earthquake degree:
＜6 degree
Altitude:
50m
Impurity in air
Ø CO2
≤450 ppm
Ø SO2
≤0.44 mg/m3
Ø H2S
≤2.3 mg/ m3
Ø CH4
≤5.2mg/ m3
Ø C2H2
≤0.03 ppm
Ø CnHm(excluding C2H2)
≤5 ppm
Ø Mechanical impurity
≤10mg/m3
Recycle water
Ø Inlet tempt.
30℃
Ø Inlet pressure
0.4 MPa(G)
Ø Max pressure drop
0.2 MPa(G)
Ø Max tempt. rising
10℃
Ø Turbidity of cooling water
12 mg/L
Ø PH value
7.2
Ø Rigidity
2.5
Ø Fouling factor
0.0004 m2 hºC/ K.W
Power condition
Ø High voltage power
10,000V±5% 3 phases 3 ways
Ø Low voltage power
380V/220V±5% AC 3 phases 4 ways
Ø Frequency
50±0.5HZ
Instrument gas ( used for starting)
Ø Pressure
0.5 MPa(G)
Ø Tempt.
≤30 ℃
Ø Dew point
＜-40℃
Ø Flow
300m3/h
Ø Requirement
NO OIL
Annex 2. Main parameter
Production Capacity And Purity(Out Of Cold Box):
Medium
capacity (Nm3/h)
purity
pressure(MpaG)
Liquid Oxygen
2000±5%
≥99.6% O2
0.14
Note:The capacity means liquid production to convert to gas.
Capacity and purity are calculated as 0 m altitude from the outlet of cold box.
Nm3/h is under condition of 0℃,760mmHg. If not figured, the pressure is absolute pressure ( same as below).
Running period between 2 defrosting times )
>2years
Defrosting time
～36hours
Starting time
from start the turbine to get the production ( excluding commissioning for argon)～24hours
- Power consumption
NO.
Equipment
Motor power(rated power)kW
Shaft power kW
Voltage stage
Remarks
1.
Raw air compressor
993
921
10KV
2.
Boosting compressor
1500
1340
10KV
Hangyang or same level manufacturer
3.
Air precooling unit
70
50
380/220V
4.
M.S. purifier
Electric heater
160
Average using 50
380/220V
One for running and one for standby,Intermittent running
5.
Expander oil pump
3
2
380/220V
One for running and one for standby
6.
Liquid storage system
Liquid O2 delivery pump
15
10
380/220V
Intermittent running
7.
Instrument control system
Average using 10
380/220V
Plant average power consumption(calculate as shaft power,exclude liquid storage system and utilities):～2373kW
- Annex 3 Description of the process: Description of the process:
- Design principle of this plant is based on the different boiling point of each gas in the air. Air is compressed, precooled and got removal of H2O and CO2, then to be cooled in the main heat exchanger until it is liquefied. After rectification, production oxygen and nitrogen can be collected.
Annex 4. Scope of supply
|
1set |
|
Technical parameter(note:determined by final design) |
|
|
Manufacturer |
Sead |
|
Type |
Self cleaning |
|
Process capacity |
～20600m3/h |
|
Filter efficiency |
≥99.8 % |
|
Filter resistance |
≤0.65KPa |
|
Installation type |
VERTICAL |
|
Filter material |
foliage fiber |
|
Scope of supply (note:determined as manufacturer’s final list) |
Q.T. |
|
Ø FILTER HOST BODAY |
1 |
|
Ø Counter blowing and control system |
1 |
|
Ø Filter bucket |
1 |
|
Ø Spare parts |
1 |
|
Image (for reference, determined by final design) |
|
|
|
|
|
1 Set |
|
Technical parameter(note:determined by final design) |
|
|
Manufacturer |
Samsung Or IHI |
|
Compressing media |
Air |
|
Cooling water inlet temp. |
≤30 ℃ |
|
Cooling water supply pressure |
0.4 Mpa |
|
Design gas discharge flow |
10300Nm3/h |
|
Discharge pressure |
0.6MPa(A) |
|
Compressing stages |
Three stage |
|
Main motor fixed power |
~993KW |
|
Shaft power |
~921KW |
|
Cooling water consumption |
~112m3/h |
|
Discharge tempt |
～40 ℃ |
|
oil content |
100% non oil |
|
adjustment |
70 %～100 % |
Ø After primary rectification in lower column, liquid air and pure liquid nitrogen can be collected in lower column. Waste liquid nitrogen, liquid air and pure liquid nitrogen flows to upper column via liquid air and liquid nitrogen cooler. It is rectified in upper column again, after that, liquid oxygen of 99.6% purity can be collected at the bottom of upper column, and is delivered out of the cold box as production.
Waste nitrogen from top of upper column flows out of the cold box to purifier as regenerative air, rest goes to cooling tower.
Ø This plant is of MS purification of air with boosting turbine expander process.
Raw air goes to air filter for removal of dust and mechanical impurity and enters air turbine compressor where air is compressed to～0.6MpaA,Then it goes into air precooling system, where air is cooled to 10℃,After that, it flows to 2 molecular sieve adsorbing tank, which are running in turn, to be got removal of H2O, CO2 and C2H2. After purified, air mixes with expanding reheated air. Then it is compressed by middle pressure compressor to be divided into2 streams. One part goes to main heat exchanger to be cooled to～250K, and sucked from the middle part of main heat exchanger to enter expansion turbine. Expanded air returns to main heat exchanger to be reheated, after that, it flows to air boosting compressor. The other part of air is boosted by high temperature expander, after cooling, it flows to the low temperature boosting expander. Then it goes to cold box to be cooled to ～243K. Part of it would still be cooled, and flows to bottom of lower column via heat exchanger. And other air is sucked to low tempt. expander. After expanded, it is divided into 2 parts. One part goes to the bottom of lower column for rectification, the rest returns to main heat exchanger, then it flows to air booster after being reheated.
99.6% Air Separation Plant KDO 2000Y Industrial Oxygen Plant With Low Energy Consumption
| Liquid O2 output | 2000nm3/h |
| Liquid O2 purity | >99.6% |
| Liquid O2 pressure | 0.14mpa |
| Running period | >2years |
| Defrosting time | 0-36hours |
| Starting time | 0-24hours |
| High voltage | 10000V |
| Low voltage | 380V/220V |
| Frequency | 50Hz |
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