OXYGEN CONCENTRATING METHOD AND APPARATUS HAVING CONDENSATE WATER REMOVING FUNCTION

摘要

An oxygen concentrating apparatus includes: at least one adsorption bed which is filled with absorbent capable of selectively adsorbing nitrogen relative to oxygen; an air supplier which supplies pressurized air to the adsorption bed; a flow channel regulating valve unit which regulates flow channels by allowing the pressurized air to be supplied to the adsorption bed from the air supplier and by allowing the air to be discharged from the adsorption bed to be depressurized such that a nitrogen adsorption process and a nitrogen desorption process are alternately performed; and a water removing unit which separates water from the pressurized air supplied from the air supplier and removes the separated water. The flow channel regulating unit and the water removing unit are at least partially housed within a single housing.

主权项

1. An oxygen concentrating method using an oxygen concentrating apparatus comprising a first adsorption bed and a second adsorption bed which are respectively formed to allow air supplied at lower portions thereof move upwardly and are respectively filled with absorbent capable of selectively adsorbing nitrogen relative to oxygen and performing oxygen centration by alternatively performing a pressurization process and a depressurization process of the first adsorption bed and the second adsorption bed, comprising:
performing a nitrogen adsorption in the first adsorption bed by supplying pressurized air to the first adsorption bed so as to increase pressure of the first adsorption bed and at the same time removing nitrogen from the second adsorption bed; equalizing pressures of upper portions of the first adsorption bed and the second adsorption bed by moving air of the upper portion of the first adsorption bed to the upper portion of the second adsorption bed when pressure of the first adsorption bed becomes a predetermined pressure; equalizing pressures of upper and lower portions of the first adsorption bed and the second adsorption bed by moving air of the upper portion of the first adsorption bed to the upper portion of the second adsorption bed and by moving air of the lower portion of the first adsorption bed to the lower portion of the second adsorption bed; performing a nitrogen adsorption in the second adsorption bed by supplying pressurized air to the second adsorption bed so as to increase pressure of the second adsorption bed and at the same time removing nitrogen from the first adsorption bed; equalizing pressures of upper portions of the first adsorption bed and the second adsorption bed by moving air of the upper portion of the second adsorption bed to the upper portion of the first adsorption bed when pressure of the second adsorption bed becomes a predetermined pressure; equalizing pressures of upper and lower portions of the first adsorption bed and the second adsorption bed by moving air of the upper portion of the second adsorption bed to the upper portion of the first adsorption bed and by moving air of the lower portion of the second adsorption bed to the lower portion of the first adsorption bed; and removing water separated from the pressurized aid which will be supplied to the first adsorption bed and the second adsorption bed for a predetermined time.