China hospital oxygen manufacturing plant

Short Description:

PSA oxygen generator is an automatic equipment which separate oxygen from air. According to the performance of molecular sieve, its adsorption when pressure risen and desorption when pressure loose. Molecular sieve’s surface and inner surface and interior are filled with micro pores. Nitorgen molecule has a faster diffusion rate and oxygen molecules has a slower diffusion rate. Oxygen molecules are enriched in the end from the absorption tower.

Oxygen generator is constructed according to the principle of operation PSA (pressure swing adsorption) and it compressed by two absorption towers filled up with molecular sieve. The two absorption towers are crossed by compressed air (previously purified oil, water,dust, etc) . While one of the absorption tower produce oxygen, the other one release nitrogen gas to atmosphere. The process comes in cycle way. The generator is controlled by a PLC.

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Oxygen Generator Technical Features

1).Full Automation

All systems are designed for un-attended operation and automatic oxygen demand adjustment.

2).Lower Space Requirement

The design and Instrument makes the plant size very compact,assembly on skids,prefabricated from factory.

3).Fast Start-up

Start-up time is only 5 minutes to get desired oxygen purity.So these units can be switched ON&OFF as per Nitrogen demand changes.

4).High Reliabiity

Very reliable for continuous and steady operation with constant oxygen purity.Plant availability time is better than 99% always.

5).Molecular Sieves life

Expected Molecular sieves life is around 15-years i.e. whole life time of oxygen plant.So no replacement costs.

6).Adjustable

By altering flow,you can deliver oxygen with precisely the right purity.

Application :

a. Ferrous metallurgy: For electric furnace steel making, blast furnace iron making, cupola oxygen blasting and heating and cutting, etc

b. Non-ferrous metal refinery: It can improve productivity and reduce energy cost, also protect our environment.

c. Water process: For oxygen aeration active mud process, reaeration of surface water, fish farming, industrial oxidation process, humid oxygenation.

d. Customized equipment with pressure high up to 100bar, 120bar, 150bar, 200bar and 250 bar are available for cylinder filling.

e. Medical-grade O2 gas can be obtained by equipping extra purifying device for removing bacteria, dust and odor.

f. Others: Chemical industry production, solid garbage burning, concrete production, glass manufacturing...etc.

Process flow brief description

Selection table of medical molecular sieve oxygen system

Model	Flow( Nm³/h)	Air need(Nm³/min)	Inlet/Outlet size(mm)		Air Dryer model
KOB-5	5	0.9	15	15	KB-2
KOB-10	10	1.6	25	15	KB-3
KOB-15	15	2.5	32	15	KB-6
KOB-20	20	3.3	32	15	KB-6
KOB-30	30	5.0	40	15	KB-8
KOB-40	40	6.8	40	25	KB-10
KOB-50	50	8.9	50	25	KB-15
KOB-60	60	10.5	50	25	KB-15
KOB-80	80	14.0	50	32	KB-20
KOB-100	100	18.5	65	32	KB-30
KOB-120	120	21.5	65	40	KB-30
KOB-150	150	26.6	80	40	KB-40
KOB-200	200	35.2	100	50	KB-50
KOB-250	250	45.0	100	50	KB-60
KOB-300	300	53.7	125	50	KB-80
KOB-400	400	71.6	125	50	KB-100
KOB-500	500	90.1	150	65	KB-120