| 摘要 |
PCT No. PCT/SU81/00005 Sec. 371 Date Oct. 6, 1981 Sec. 102(e) Date Oct. 6, 1981 PCT Filed Jan. 15, 1981 PCT Pub. No. WO81/02340 PCT Pub. Date Aug. 20, 1981.A corrugated core structure for a heat exchanger in the form of a corrugated plate, walls 2 of corrugations 1 defining passages 3 for the flow of a heat-transfer agent to pass therethrough. The walls 2 are provided with pairs of extending along the length thereof projections 4 and recesses 5 successively separated by smooth wall portions 6 to effect successive throttling of the heat-transfer agent flow. Each smooth wall portion 6 is of a length essentially below five values of the hydraulic diameter of the smooth portion 6 of the passage 3. The inner curvature radius of the vertex of the corrugation 1 is essentially below a difference between one fourth of the pitch of the corrugations 1 and half the wall thickness thereof, the projections 4 and recesses 5 on the walls 2 of the corrugations 1 having a length capable to ensure an intensified heat transfer process. |
