250m3/h Low Pressure 99.6% Air Separation Plant Oxygen Plant Machine

99.6% Air Separation Plant FON- 250-500 Industrial Oxygen Plant With Low Energy Consumption

1.1 Design basic conditions
Atmosphere pressure 0.1013Mpa (A)
Atmosphere tempt. 30℃
Relative humidity 80%
O2 contained in air 20.95% O2

1.2 Cooling water

Feeding water:Tempt. 30℃)

Pressure 0.45MPa(G)

PH value 7～8

Fouling factor 0.0004m² ℃.h/Kcal

Total hardness 100mg/L

Turbidity 10～30mg/L

1.3 Earth quake: ＜6 degree

1.4 Sea level: 50m

1.5 Impurity in atmosphere

CO₂ ≤350 ppm
SO₂ ≤0.44 mg/m³
H₂S ≤2.3 mg/m³
CH₄ ≤5.2mg/m³
C₂H₂ ≤0.03 ppm
C_nH_m(excluding C₂H₂) ≤5 ppm
Dust content ≤10mg/m³

1.5 Power supply
Low voltage 380V/220V±5%

AC,3-phase,4-wire
Frequency 50±0.5Hz

Loaded power ～220KW(Name plate power, not incl. O2 compressor)

2. Main technical performance parameters

2.1 Product output,purity , pressure

O2 output 250m³/h±5%

O2 purity ≥99.6%O₂

O2 pressure ～0.034MPa(G)

N2 output 500m³/h±5%

N2 purity ≤10ppmO₂

N2 pressure ～0.012 MPa(G)

Product quantity status(at 0℃,101.325Kpa)

2.2 Start pressure 0.65MPa(G)

2.3 Plant operation period(between two defrosting times) 12 months

2.4 Start time ～24 hours

2.5 Specific power ～0.65kWh/m³O₂(not incl.

O2 compressor)

3.Pocess description:

KDON-250/500 air separation plant is of low pressure process.

Raw air comes from air, goes through air filter for removal of dust and other mechanical particle and enters non-lub air compressor to be compressed by two stage compressor to approx. 0.65MPa(g).It goes through cooler and enters precooling unit to be cooled to 5～10℃. Then it goes to switch-over MS purifier for removal of moisture, CO2, carbon hydrogen. Purifier consists of two molecular sieve filled vessels. One is in use while anther is under regeneration by waste nitrogen from the cold box and through heater heating.

After purified, small part of it is used as bearing gas for turbine expander, other enters cold box to be cooled by reflux(pure oxygen, pure nitrogen and waste nitrogen) in main heat exchanger. Part of air is abstracted from the middle part of main heat exchanger and goes to expansion turbine for production of cold. Most of expanded air goes through subcooler which is cooled by oxygen from upper column to be delivered to upper column. Small part of it goes through bypass to waste nitrogen pipe directly and is reheated to go out of the cold box. The other part of air continues to be cooled to near liquid air tempt to lower column.

In lower column air,air is separated and liquefied as liquid nitrogen and liquid air. Part of liquid nitrogen is abstracted from the top of the lower column. Liquid air after subcooled and throttled is delivered to the middle part of upper column as reflux.

Product oxygen is abstracted from the lower part of upper column and reheated by expanded air subcooler, main heat exchange. Then it is delivered out of column. Waste nitrogen is abstracted from the upper part of upper column and is reheated in subcooler and main heat exchanger to go out of column. Part of it is used as regeneration gas for MS purifier. Pure nitrogen is abstracted from the top of the upper column and is reheated in liquid air , liquid nitrogen subcooler and main heat exchanger to be delivered out of the column.

Oxygen out of the distillation column is compressed to customer.

4. Scope of supply:

4.1,Air compressor(reciprocating non-lub. ) 1 set

Manufactory Liuzhou

Type VW-22/6.5

Discharge capacity 22m³/min

Discharge pressure 0.65MPa(G)

Motor power 120kW

Cooling water consumption ～5t/h

Cooling water tempt. ≤30℃

Cooling water pressure ≥0.3MPa

Scope of supply:

4.1.1 Motor 1set

4.1.2 Compressor body 1set

4.1.3 Control panel 1set

4.1.4 Spare parts with machine 1set

4.1.5 End stage cooler 1set

4.2,Air compressor(reciprocating non-lub. ) 1 set

Manufactory Liuzhou

Type ZW-6/7

Discharge capacity 6m³/min

Discharge pressure 0.7MPa(G)

Motor power 37kW

Cooling water consumption ～2t/h

Cooling water tempt. ≤30℃

Cooling water pressure ≥0.3MPa

Scope of supply:

4.2.1Motor 1set

4.2.2 Compressor body 1set

4.2.3 Control panel 1set

4.2.4 Spare parts with machine 1set

4.2.5 End stage cooler 1set

4.3,Air buffer Pc

Volume 2m³

Working pressure 0.8MPa

4.4,Air precooling unit 1 Group

Manufacturer Hangzhou

Type GAYL-1680/8

Process air 1680m³/h

Inlet pressure ≤0.8MPa(G)

Air inlet tempt. ≤40℃

Air outlet tempt. ～8℃

Motor power ～15kW

Recycling tempt. inlet pressure ≥0.3MPa

Recycling tempt. inlet tempt. ≤30℃

Recycling water capacity ～10t/h

Scope of supply:

4.4.1 Inlet refrigeration compressor 1set

4.4.2 Condenser 1set

4.4.3 Evaporator 1set

4.4.4 Pipe valves 1set

4.4.5 Refrigeration auto control element 1set

4.4.6 Electric control board 1set

4.4.7 Operation instrument panel 1set

4.4.8 Water separator 1set

4.4.9 Liquid level warning device 1set

Note:All above assembled as one unit.

4.5,MS purification system 1 set

Type HXK-1680/8

Process capacity 1680m³/h

Working pressure 0.8MPa

Air inlet tempt. 12℃

Absorbing time 8h

Regenerating gas inlet tempt. 250℃

Regenerating gas outlet tempt. 100℃

Heater power 36kW

Scope of supply:

4.5.1 MS absorbent column(containing MS) 2sets

4.5.2 Heater 1set

4.5.3 Filter 1pc

4.5.4 Pipe and valve １set

Note:Above skid-mounted

4.6,Rectification column 1set

Manufacturer Kaide

Model FON-250/500

Type Two stage rectification column

Process air 1500m³/h

O2 output 250m³/h±5%

O2 purity ≥99.6%O₂

N2 output 500m³/h±5%

N2 purity ≤10PPmO₂

Dim. 2200×2300×16000mm

Scope of supply:

　 4.6.1 Main heat exchanger 1set

4.6.2 Subcooler 2set

4.6.3 Condenser-evaporator 1set

4.6.4 Distillation column 1set

4.6.5 Cold box 1set

4.7,Expansion turbine 1 group/2 sets

Type PLPK-7/6.4-0.5

Flow rate 420m³/h

Inlet tempt 150K

Inlet pressure/outlet pressure ～0.74MPa(A)/0.15MPa(A)

Working medium air

Brake method Fan brake

Insulation efficiency ≥72%

Scope of supply:

　4.7.1 Expansion turbine body 2sets

　4.7.2 Expansion extending knob 4ps

4.7.3 Expander inlet filter 2ps

　Note:With distillation column as one body

4.8 O₂ compressor ( 55 kw)

Type ZW-3.35/165 O2 compressor, :1 set

Manufacturer Hangzhou

Non-lub. piston O2 compressor

Discharge capacity 200M3/h

Discharge pressure 165kg

Weight : 5.5tons

4.9 O2 compressor: 1 set of distillation water lub. O2 compressors

Capacity 100M3/h

Manufacturer Hangzhou

4.10 Filling ramp : 1 set

connectors 12x2=24 connectors

4.11. Balloon 100M3 : 1set

5. Instrument and electric control system

5.1Description for instrument and electric design

KDON-250/500 plant electric and instrument control is of local panel control.

5.2. Air compressor has one electric control panel and control face, pressure and tempt. indication, warning and operation buttons are provided on the operation desk.

5.3. Purifier has purifier board and one heater power resource switch gear.

5.4. Instrument board for distillation column.

5.4. Instrument for expansion turbine.

5.5. Tempt., flow rate, liquid level are digital-displayed in meters.

1. Scope of supply by the buyer
   1. Connection valves, pipes (incl. flanges, bolts, nuts, washer, gaskets and accessories), necessary pipe support, valves, valves support, insulation material, packing steel belt, etc. between each unit(machine).
   2. Air suction part (buyer should ensure the air quality for the oxygen plant.

6.3 Measuring pipe, pipes support, cable and wire, pipes for each single unit and equipment and accessories for sealing gas system.

6.4 Anti-lightning device, earthing device for outside of the rectification column and vessels.

6.5 Engineering design for the workshop, including all civil work for , incl. light, utility engineering, workshop foundation sanitation, water supply and drainage, communication, indoor air conditioning, fire control, heating device as well as lifting device inside workshop., hoisting facility, etc.

HV power supply panel, voltage drop starter (if needed) , etc distribution equipment.

1. All measuring meters pipe line, pipe support, cable(low tempt. cable in the cold box not included.), all pipe line and accessories in seal gas system.
2. Engineering design for the workshop, including all civil work for , incl. light, utility engineering, workshop foundation sanitation, water supply and drainage, communication, indoor air conditioning, fire control, heating device as well as lifting device inside workshop., hoisting facility, etc. Cranes for workshop.
3. Cooling tower, water pump, pipe, valves and accessories, etc. for the water cooling system.

6.10 Coating and paint for final painting of the plant.

6.11 Material and oil for operation of the plant.

6.12 N2 analyzer

KDON - 250/500 oxygen plant

Beijing Silk Road Enterprise Management Services Co.,LTD is a joint venture enterprise specializing in the production of cryogenic equipment, which is the subsidiary company of Tai Wan Lian Su group. Registered capital is 10,000,000 Yuan (about 1,600,000 USD ). Founded in 1996, Tailian has been doing research and development for various technologies, manufacturing of equipment, sales and service in the filed of cryogenics in both domestic and foreign markets. Owning advanced technology and producing facilities, we also have dozens of experienced specialists for cryogenic and air separating area for years. Tailian has been the supplier of dozens of world famous transnational companies, such as China nuclear power engineering Co., Ltd, China Aerospace Science and Technology Corporation, Xinjiang Guanghui Industry Investment Group Company Limited, Sinopec Group, China National Petroleum Corporation（CNPC）,  Linde Group, France Air Liquid, China National Offshore Oil Corporation, Coca-Cola,Praxair，Hang Yang Group, Pepsi, Wahaha Group, Hafei Aviation Industry Co., Ltd, ENN Energy Holding Group, Qingdao Beer, Budweiser, Shell, CIBA and B.O.C. etc. Our annual producing capability of liquid pump is round 800-900 sets, and so far we have finished more than 10,000 sets cryogenic liquid pumps to the customers. In the past few years, our productions have been exported to several countries, such as Vietnam, Kazakhstan, Pakistan, Congo, Bangladesh, Egypt, Iraq, Cambodia, Angola, Philippines, India, Venezuela, Indonesia and Lao, etc.

Beijing Silk Road Enterprise Management Services Co.,LTD is specialized in producing cryogenic liquid pumps for LNG, LPG, liquid oxygen, liquid nitrogen, liquid argon, liquid carbon dioxide, liquid ammonia and methane as well as cryogenic liquid vaporizer, oxygen compressor, carbon dioxide equipment and gas pressure regulating system. Beside that, we also undertake turnkey project of LNG/L-CNG vehicle fueling station, LNG station, LNG peaking-use evaporating station, LNG gas cylinder fueling station and undertake coal to gas project and all other industrial gas applications. Tailian also researches and develops, produces, sales and services for the equipment mentioned above. 

Tailian has got the special equipment manufacturing license (A-grade pressure pipes) of People’s Republic of China and approval certificate of ISO9001：2008. Tailian is one of the members in 30 companies who got the title of ‘Golden Reputation’ in the First China Integrity Network Summit. And We are also the member “ Union of Golden Reputation”. With advanced technology, superior quality and value of after sale service, Tailian earns trust from lots of transnational gas companies both at home and abroad.

Sharp tools make good work. The administrator of Tailian realized that only good management, idea or good talent are not enough. Advanced facility must be adopted to ensure powerful manufacturing prowess and superior quality of our products. We purchased world advanced producing facilities(such as process center and CNC) and have experienced specialists, which can guarantee the good quality of products.

Our company persists in the principle of customer first, sincere service, products sale over the country, and export to Southeast Asia and the Middle East. Our products are mainly used in petroleum, chemical, nuclear power plants, iron and steel, electric power, military, aerospace and other industries.