Gas separator fixing structure and gas separating device using the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/22
B01D-071/02
출원번호
US-0822131
(2004-04-09)
우선권정보
JP-0324411 (2001-10-23)
발명자
/ 주소
Suzuki, Kenji
출원인 / 주소
NGK Insulators, Ltd.
대리인 / 주소
Burr &
인용정보
피인용 횟수 :
5인용 특허 :
6
초록▼
The gas separator fixing structure of the present invention is characterized in that it is provided with a gas separator 10 having a gas separation membrane 30 formed on at least one surface of a tubular support 31 having a through hole 7 in axial direction and comprising porous ceramics, a cap-like
The gas separator fixing structure of the present invention is characterized in that it is provided with a gas separator 10 having a gas separation membrane 30 formed on at least one surface of a tubular support 31 having a through hole 7 in axial direction and comprising porous ceramics, a cap-like metal member 1 and a ring-shaped metal member 4 are fixed to one and the other open end of the gas separator 10 through seal members, respectively, and seal members are gland packings 11 and 12. A gas separating device can be provided in which there hardly occurs breakage of the tubular support constituting the gas separator 10 due to the thermal stress and there hardly occurs reduction of air-tightness between the gas separator 10 and the supporter supporting the gas separator caused by load of heat cycles, and besides which can be used even under the conditions of high temperatures.
대표청구항▼
1. A gas separator fixing structure provided with a gas separator having a gas separation membrane formed on at least one surface of a tubular support having a through hole in axial direction and comprising porous ceramics, characterized in that a cap-like metal member and a ring-shaped metal member
1. A gas separator fixing structure provided with a gas separator having a gas separation membrane formed on at least one surface of a tubular support having a through hole in axial direction and comprising porous ceramics, characterized in that a cap-like metal member and a ring-shaped metal member are compression-fixed to one and the other open end of the gas separator through seal members, respectively, and seal members are gland packings.2. A gas separator fixing structure according to claim 1, wherein the cap-like metal member comprises a first cap-like or ring-shaped packing presser which gives a tightening pressure to one of the gland packings in the axial direction of the tubular support and a ring-shaped or cap-like lower stopper which inhibits movement of the one of the gland packings, and the ring-shaped metal member comprises a second ring-shaped packing presser which gives a tightening pressure to another gland packing in the axial direction of the tubular support and a ring-shaped upper stopper which inhibits movement of the another gland packing.3. A gas separator fixing structure according to claim 2, wherein the first packing presser has a convex shape which directly presses one of the gland packings by us tip portion, and the lower stopper has a concave shape which directly contacts with the one of the gland packings and fits to the convex shape of the first packing presser, and the second packing presser has a convex shape which directly presses another gland packing by its tip portion, and the upper stopper has a concave shape which directly contacts with the another gland packing and can fit to the convex shape of the second packing presser.4. A gas separator fixing structure according to claim 2, wherein each of the upper and lower stoppers have a bore passing at least partially thereibrough and the bore has a first internal diameter for receiving the gland seal and a second, larger internal diameter for receiving at least a portion of the packing presser.5. A gas separator fixing structure according to claim 1, wherein the tubular support has a plurality of through holes arranged in rows.6. A gas separator fixing structure according to claim 1, wherein the maximum value of operating temperature range of the gland packing is 300° C. or higher.7. A gas separator fixing structure according to claim 1, wherein the maximum value of operating temperature range of the gland packing in a non-oxidizing atmosphere is 350° C. or higher.8. A gas separator fixing structure according to claim 7, wherein the maximum value of operating temperature range of the gland packing in a non-oxidizing atmosphere is 600° C. or higher.9. A gas separator fixing structure according to claim 1, wherein the main component of the gland packings is expanded graphite.10. A gas separator fixing structure according to claim 1, wherein the porous ceramics is alumina.11. A gas separator fixing structure according to claim 1, wherein the gas separation membrane is a hydrogen separation membrane through which hydrogen selectively permeates.12. A gas separator fixing structure according to claim 1, wherein the gas separation membrane comprises palladium or a metal containing palladium.13. A gas separator fixing structure according to claim 1, wherein the material constituting the cap-like metal member and/or ring-shaped metal member has a thermal expansion coefficient of 4×10?6-10×10?6/° C.14. A gas separator fixing structure according to claim 1, wherein the material constituting the cap-like metal member and/or ring-shaped metal member is Permalloy.15. A gas separator fixing structure according to claim 1 which is used at a temperature in the range of 250-1650° C.16. A gas separator fixing structure according to claim 1 which is used at a temperature in the range of 300-600° C.17. A gas separator fixing structure according to claim 1 which is used under a pressure of 0.1-10 MPa in the total pressure of the gas to be treated.18. A gas separator fixing structure provided with a gas separator having a gas separation membrane formed on at least one surface of a tubular support having a through hole in axial direction and comprising porous ceramics, characterized in that ring-shaped metal mewbers are fixed to both open ends of the gas separator through seal members, respectively, and the seal members are gland packings.19. A gas separator fixing structure according to claim 18, wherein the ring-shaped metal member comprises a ring-shaped packing presser which gives a tightening pressure to the gland packing in the axial direction of the tubular support and a ring-shaped stopper which inhibits movement of the gland packing.20. A gas separator fixing structure according to claim 19, wherein the ring-shaped packing presser has a convex shape which directly presses the gland packing by its tip portion, and the ring-shaped stopper has a concave shape which directly contacts with the gland packing and can fit to the convex shape of the ring-shaped packing presser.21. A gas separating device comprising a gas separator fixing structure provided with a gas separator having a gas separation membrane formed on at least one surface of a tubular support having a through hole in axial direction and comprising porous ceramics, wherein a cap-like metal member and a ring-shaped metal member are compression-fixed to one and the other open end of the gas separator through seal members, respectively, and seal members are gland packings, and being provided with a pressure container, wherein the ring-shaped metal member is fixed to an inner surface of the pressure container.22. A gas separating device comprising a gas separator fixing structure provided with a gas separator having a gas separation membrane formed on at least one surface of a tubular support having a through hole in axial direction and comprising ceramics, wherein the gas separator fixing structure is fixed in a container having an inlet, a first outlet and a second outlet,wherein a specific gas component in a gas to be treated which flows into the device from an inlet is allowed to permeate the gas separation membrane and to flow out from the first outlet, and a gas which does not permeate through the gas separation member is allowed to flow out from the second outlet, and wherein ring-shaped metal members are fixed to both open ends of the gas separator through seal members, respectively, and the seal members are gland packings. 23. A gas separating device according to claim 22 which is provided with a buffer which absorbs expansion of the gas separator.
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