Alternating notch configuration for spacing heat transfer sheets
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F23L-015/02
F28D-017/00
F28F-003/08
F28F-003/02
F28D-019/04
F28F-003/04
F28F-005/02
F28D-021/00
출원번호
US-0877451
(2015-10-07)
등록번호
US-10094626
(2018-10-09)
발명자
/ 주소
Atkinson, Nathan T.
Seebald, James D.
Yowell, Jefferey E.
O'Boyle, Jeffrey M.
출원인 / 주소
ARVOS LJUNGSTROM LLC
대리인 / 주소
Murtha Cullina LLP
인용정보
피인용 횟수 :
0인용 특허 :
102
초록▼
A heat transfer sheet for a rotary regenerative heat exchanger includes a plurality of rows of heat transfer surfaces each being aligned with a longitudinal axis extending between first and second ends thereof. The heat transfer surfaces have a height relative to a central plane of the heat transfer
A heat transfer sheet for a rotary regenerative heat exchanger includes a plurality of rows of heat transfer surfaces each being aligned with a longitudinal axis extending between first and second ends thereof. The heat transfer surfaces have a height relative to a central plane of the heat transfer sheet. The heat transfer sheet includes one or more notch configurations for spacing the heat transfer sheets apart from one another. Each of the notch configurations are positioned between adjacent rows of heat transfer surfaces. The notch configurations include one or more lobes connected to one another, positioned in a common flow channel and extending away from the central plane and one or more lobes extending away from the central plane in an opposite direction and being coaxial. The lobes have height a relative to the central plane that is greater than the height of the heat transfer surfaces.
대표청구항▼
1. A heat transfer sheet for a rotary regenerative heat exchanger, the heat transfer sheet comprising: a plurality of rows of heat transfer surfaces, each of the plurality of rows being aligned with a longitudinal axis that extends between a first end and a second end of the heat transfer sheet, par
1. A heat transfer sheet for a rotary regenerative heat exchanger, the heat transfer sheet comprising: a plurality of rows of heat transfer surfaces, each of the plurality of rows being aligned with a longitudinal axis that extends between a first end and a second end of the heat transfer sheet, parallel to intended flow directions, the heat transfer surfaces having a first height relative to a central plane of the heat transfer sheet; andat least one notch configuration for spacing the heat transfer sheets apart from one another, the at least one notch configuration being positioned between adjacent ones of the plurality of rows of heat transfer surfaces, the notch configuration comprising: at least one first lobe extending away from the central plane in a first direction;at least one second lobe extending away from the central plane in a second direction opposite to the first direction; andeither one or both of the at least one first lobe and the at least one second lobe having a second height relative to the central plane, the second height being greater than the first height,wherein the at least one first lobe and the at least one second lobe are in a common flow channel and longitudinally connected to one another by a flow diversion configuration defined by a transition region, the lobes being situated in a longitudinal alternating pattern such that the at least one first lobe is longitudinally adjacent to the at least one second lobe, wherein within the transition region, a transition surface connects the at least one first lobe to the at least one second lobe and extends through the central plane. 2. The heat transfer sheet of claim 1, wherein the heat transfer surfaces comprise undulating surfaces that are angularly offset from the longitudinal axis. 3. The heat transfer sheet of claim 1, wherein the transition region comprises an arcuate shape. 4. The heat transfer sheet of claim 1, wherein the transition region comprises a flat section. 5. The heat transfer sheet of claim 1, wherein the transition region comprises a flat section that is parallel to the central plane. 6. The heat transfer sheet of claim 1, wherein the transition region comprises a flow stagnation mitigating path. 7. The heat transfer sheet of claim 1, wherein the at least one first lobe and the at least one second lobe being coaxial with one another along an axis parallel to the longitudinal axis. 8. The heat transfer sheet of claim 1, wherein the at least one first lobe and the at least one second lobe are adjacent to one another in a direction transverse to the longitudinal axis. 9. The heat transfer sheet of claim 1, wherein at least one of the at least one first lobe and the at least one second lobe are angularly offset from one another. 10. The heat transfer sheet of claim 1, wherein the at least one first lobe is longitudinally spaced apart from another of the at least one first lobes by the at least one second lobe. 11. A heat transfer assembly for a rotary regenerative heat exchanger, the heat transfer assembly comprising: at least two heat transfer sheets stacked upon one another;each of the at least two heat transfer sheets comprising:a plurality of rows of heat transfer surfaces, each of the plurality of rows being aligned with a longitudinal axis that extends between a first end and a second end of the heat transfer assembly, parallel to intended flow directions through the heat transfer assembly, the heat transfer surfaces having a first height relative to a central plane of the heat transfer sheet;at least one notch configuration for spacing the heat transfer sheets apart from one another, the at least one notch configuration being positioned between adjacent ones of the plurality of rows of heat transfer surfaces, the notch configuration comprising: at least one first lobe extending away from the central plane in a first direction;at least one second lobe extending away from the central plane in a second direction opposite to the first direction;either one or both of the at least one first lobe and the at least one second lobe having a second height relative to the central plane, the second height being greater than the first height; andthe at least one first lobe of a first of the at least two heat transfer sheets engaging the heat transfer surface of a second of the at least two heat transfer sheets and the at least one second lobe of the second of the at least two heat transfer sheets engaging the heat transfer surface of the first of the at least two heat transfer sheets to define a flow path between the at least two heat transfer sheets, the flow path extending between the first end to the second end; andwherein the at least one first lobe and the at least one second lobe are in a common flow channel and longitudinally connected to one another by a flow diversion configuration defined by a transition region, the lobes being situated in a longitudinal alternating pattern such that the at least one first lobe is longitudinally adjacent to the at least one second lobe, wherein within the transition region, a transition surface connects the at least one first lobe to the at least one second lobe and extends through the central plane. 12. A stack of heat exchanger sheets, the stack comprising: at least one first heat transfer sheet comprising: a first undulating surface extending along the first heat transfer sheet and oriented at a first angle relative to a direction of flow through the stack, anda second undulating surface extending along the first heat transfer sheet and oriented at a second angle relative to the direction of flow through the stack, the first angle and second angle being different; andat least one second heat transfer sheet defining a plurality of notch configurations extending along a longitudinal axis that extends between a first end and a second end of the at least one second heat transfer sheet, parallel to intended flow directions, for spacing the at least one first heat transfer sheet apart from an adjacent one of the at least one second heat transfer sheet, the at least one notch configuration comprising: at least one first lobe extending away from a central plane of the at least one second heat transfer sheet in a first direction;at least one second lobe extending away from the central plane in a second direction opposite to the first direction;the at least one first lobe engaging a portion of at least one of the first undulating surface and the second undulating surface;the at least one second lobe engaging a portion at least one of the first undulating surface and the second undulating surface to define a flow path between the at least one first heat transfer sheet and the at least one second heat transfer sheet; andwherein the at least one first lobe and the at least one second lobe are in a common flow channel and longitudinally connected to one another by a flow diversion configuration defined by a transition region, the lobes being situated in a longitudinal alternating pattern such that the at least one first lobe is longitudinally adjacent to the at least one second lobe, wherein within the transition region, a transition surface connects the at least one first lobe to the at least one second lobe and extends through the central plane.
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