| 摘要 |
A low cost heat exchanger exhibits high performance in relation to heat resistance, pressure resistance, prevention of fluid leakage, and heat exchange efficiency. The heat exchanger is equipped with a stacked plate assembly having a plurality of stacked plates, and a hollow tubular casing, which accommodates the stacked plate assembly and extends in the stacking direction. The stacked plate assembly includes the plurality of plates, sealing members for preventing leakage of fluid from fluid paths, and a fixing tool fastening together the plural plates at a position along the central axis thereof. In the heat exchanger, two types of fluids that undergo heat exchange flow in arcuate paths in the interior of hollow portions formed between two adjacent plates, without causing mutual mixing to occur between the two fluids. Adjacent hollow portions are connected in series through bypasses. |
| 主权项 |
1. A heat exchanger comprising:
a stacked plate assembly having n stacked plates, where n is a natural number constant satisfying the relation 5≦n; on each of two mutually adjacent plates from among said n plates, hollow portions are formed between said two plates; among at least one first hollow portion, which is formed between a Hth plate, where H=2x−1, and a Ith plate, where I=2x, counting in a direction from one end to another end in the stacking direction of said n plates, where x is a natural number variable satisfying the relation 2x ≦n, a closest first hollow portion to said one end in said stacking direction comprises a first outlet port that communicates with an exterior of said stacked plate assembly; among said at least one first hollow portion, a closest first hollow portion to said other end in said stacking direction comprises a first inlet port that communicates with the exterior of said stacked plate assembly; a first bypass is provided that interconnects each of two mutually adjacent first hollow portions from among two or more first hollow portions for forming a single flow path for fluid from the first inlet port to the first outlet port through the two or more first hollow portions sequentially; among at least one second hollow portion, which is formed between a Jth plate, where J=2y, and a Kth plate, where K=2y+1, counting in a direction from said one end to said other end in the stacking direction of said n plates, where y is a natural number variable satisfying the relation 2y+1≦n, a closest second hollow portion to said one end in said stacking direction comprises a second inlet port that communicates with the exterior of said stacked plate assembly; among said at least one second hollow portion, a closest second hollow portion to said other end in said stacking direction comprises a second outlet port that communicates with the exterior of said stacked plate assembly; a second bypass is provided that interconnects each of two mutually adjacent second hollow portions from among two or more second hollow portions for forming a single flow path for fluid from the second inlet port to the second outlet port through the two or more second hollow portions sequentially; said first hollow portion and said second hollow portion are separated mutually from each other, so that fluid does not flow between said first hollow portion and said second hollow portion; each of said at least one first bypass is arranged along an outer side surface of a second hollow portion that is positioned between two first hollow portions which are connected mutually by said first bypass in said stacking direction; and each of said at least one second bypass is arranged to penetrate through an inner side of a first hollow portion that is positioned between two second hollow portions which are connected mutually by said second bypass in said stacking direction, each of said at least one second bypass being performed by a partition wall separating the second bypass from the first hollow portion. |
