IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0601206
(2006-11-17)
|
등록번호 |
US-7758672
(2010-08-09)
|
우선권정보 |
KR-10-2006-0008516(2006-01-26); KR-10-2006-0046611(2006-05-24) |
발명자
/ 주소 |
- Lee, Tae Soo
- Choi, Yoon Sun
- Kim, Yong Duck
|
출원인 / 주소 |
|
대리인 / 주소 |
Park & Associates IP Law LLC
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
1 |
초록
▼
The present invention relates to an apparatus and process for oxygen concentration that makes possible the production of highly purified concentrated oxygen by modifying the structure of the adsorption bed and with various valves coupled thereto, and which can increase purity of the oxygen produced
The present invention relates to an apparatus and process for oxygen concentration that makes possible the production of highly purified concentrated oxygen by modifying the structure of the adsorption bed and with various valves coupled thereto, and which can increase purity of the oxygen produced and reduce mechanical energy and consumption of electricity of the air compressor.
대표청구항
▼
What is claimed is: 1. An apparatus for concentrating oxygen comprising: an adsorption bed having a first solenoid valve mounted on the outside of a bed housing to supply and/or discharge compressed air; first and second adsorption columns disposed in the adsorption bed to separate nitrogen and oxy
What is claimed is: 1. An apparatus for concentrating oxygen comprising: an adsorption bed having a first solenoid valve mounted on the outside of a bed housing to supply and/or discharge compressed air; first and second adsorption columns disposed in the adsorption bed to separate nitrogen and oxygen in the compressed air supplied through the first solenoid valve; an oxygen reservoir to store the oxygen concentrated by the first and second adsorption columns; first and second cover assemblies mounted on first and second terminal ends of the adsorption bed; respectively, wherein the first cover assembly includes first and second grooves which are spaced from each other and positioned to correspond to the first and second adsorption columns on the inside surface of the first cover assembly; first and second check valves disposed at the first cover assembly in areas having the first and second grooves, respectively, for allowing the concentrated oxygen to flow through a supplying hole which is disposed in the first cover assembly and communicates with the oxygen reservoir of the adsorption bed; a mounting part incorporated on an upper part of the first cover assembly, the mounting part having first and second communicating holes, first ends of the communicating holes being in fluid communication with the inside of the first and second grooves, respectively, and second ends of the communicating holes extending to the outside of the first cover assembly, respectively; a second solenoid valve mounted on the mounting part and being in fluid communication with the first and second communicating holes so as to obtain an equilibrium in the pressure of the first and second adsorption columns; and a chamber installed on the outside of the first cover assembly such that the gas supplied through the first and second check valves can flow to the supplying hole. 2. An apparatus for concentrating oxygen as claimed in claim 1, wherein the first cover assembly includes first and second orifices formed through the first cover assembly on the lower sides of the first and second check valves, the first and second orifices being in fluid communication with the first and second adsorption columns for allowing a portion of the concentrated oxygen to flow in reverse direction such that the nitrogen adsorbed in the first and second adsorption columns can be purged when the pressure of any one of the first and second adsorption columns is higher than the other one. 3. An apparatus for concentrating oxygen as claimed in claim 2, wherein the first and second check valves and the supply hole are disposed on the region of the chamber while positioned on the same line, and the first and second orifices, positioned on the lower sides of the first and second check valves, are disposed on the region of the chamber while positioned on the same line. 4. An apparatus for concentrating oxygen as claimed in claim 1, wherein the first and second check valves are respectively mounted on a fixing hole formed on the first cover assembly, which includes a valve hole formed on both sides of the fixing hole to allow gas to flow, and further includes a valve body of deformable material such that the valve body can operate flexibly by the pressure of moving gas via the valve hole. 5. An apparatus for concentrating oxygen as claimed in claim 1, wherein a chamber cover is installed on the chamber of the first cover assembly, and the chamber cover defines: a first chamber formed on the inside of the chamber cover body on the chamber of the first cover assembly and compartmented with a close region sealed from the outside; and a second chamber formed on the lower side of the first chamber and compartmented with a close region sealed from, and allowing the gas supplied through the first orifice and the second orifice to flow. 6. An apparatus for concentrating oxygen as claimed in claim 5, wherein the chamber cover includes a sealing element which is interposed along with the external edge of the first and second chambers formed on the body of the chamber cover and is positioned with an engaged state on the external peripherals of the chamber. 7. An apparatus for concentrating oxygen as claimed in claim 1, wherein the second cover assembly includes: third and fourth grooves, which grooves correspond to the first and second adsorption columns on the inside surface of the second cover assembly, and a connecting hole formed between the third and fourth grooves and being in fluid communication with the oxygen reservoir of the adsorption bed. 8. An apparatus for concentrating oxygen as claimed in claim 1, wherein the first solenoid valve is a 5 port 3 way solenoid valve. 9. An apparatus for concentrating oxygen as claimed in claim 1, wherein the first solenoid valve is a dual 3 port 2 way solenoid valve. 10. An apparatus for concentrating oxygen as claimed in claim 1, wherein the second solenoid valve is a 2 port 2 way solenoid valve. 11. A process for concentrating oxygen to be applied for the apparatus of claim 1, comprising the steps of: compressing external air supplied to the first adsorption column of the adsorption bed by an air compressor; producing concentrated oxygen in the time of same pressure in both the inside of the adsorption bed and the first adsorption column as the nitrogen included in the compressed air is adsorbed in the first adsorption column; equalizing the pressure of the first upper part of the first and second adsorption columns, by supplying the compressed gas supplied on the first adsorption column to the second adsorption column of the adsorption bed by opening the second solenoid valve in response to a first electrical signal after production of the concentrated oxygen in the first adsorption column; equalizing the first upper/lower part, accomplished with the first and second adsorption columns to equalize with the first upper part equalization and lower part equalization concurrently, by supplying the external air supplied by the step of the first upper part equalization through the lower part of the first adsorption column through the lower part of the second adsorption column by opening the first solenoid valve in response to a second electrical signal; decompressing the first adsorption column by reducing its pressure without supplying the compressed external air to the first adsorption column while supplying the compressed external air to the second adsorption column through the air compressor to the inside of the adsorption bed and elevating the internal pressure of the second adsorption column; cleansing accomplished with desorption and rinsing with the pressure of the first adsorption column in the state of decompressed nearly to the atmospheric pressure, wherein the nitrogen substance contained in the compressed air is adsorbed in the second adsorption column and a high concentrated oxygen is produced in the time of same pressure with the inside pressure in both the adsorption bed and the second adsorption column; equalizing the pressure of the second upper part, wherein the supplied compressed gas on the second adsorption column is supplied to the first adsorption column installed inside the adsorption bed by opening the second solenoid valve in response to the first electrical signal after the producing the concentrated oxygen at the second adsorption column to equalize the upper part pressure of the first and second adsorption columns; and equalizing the second upper/lower part equalization, accomplished concurrently with the lower part equalization and the second upper part equalization of the first and second adsorption columns, by supplying the external air through the lower part of the second adsorption column through the lower part of the first adsorption column by opening the second solenoid valve in response to the second electrical signal. 12. A process for concentrating oxygen as claimed in claim 11, wherein the step of producing the concentrated oxygen includes a step of storing the concentrated oxygen where high concentrated oxygen produced in the first adsorption column is stored within the adsorption bed. 13. A process for concentrating oxygen as claimed in claim 11, wherein in the steps of the first and the second upper/lower part equalization, the pressure of the first adsorption column is lowered rapidly and the pressure of the second adsorption column is elevated rapidly, and the pressure of the first and second adsorption columns reaches to a same pressure. 14. A process for concentrating oxygen as claimed in claim 11, wherein the step of the first upper/lower part equalization is accomplished concurrently and continuously when the step of the first upper part equalization is established. 15. A process for concentrating oxygen as claimed in claim 11, wherein the step of the second upper/lower part equalization is accomplished concurrently and continuously when the step of the second upper part equalization is established.
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