Special-shaped particle ordered packing heat-exchange device
A technology of heat exchange device and particles, which is applied in the direction of heat exchangers, indirect heat exchangers, heat exchange equipment, etc., can solve the problems that there is no method for orderly accumulation of special-shaped particles, and there is no method for allowing orderly accumulation of particles. To achieve the effect of improving the flow and heat transfer performance
Active Publication Date: 2021-03-16
XI AN JIAOTONG UNIV
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[0005] In the published patent literature, for the ordered packing bed of particles, grid particle composite and grid particle composite ordered packing methods have been proposed, but there is no ordered packing method for special-shaped particles, and there is no method that allows two different Particle Ordered Packing Method for Fluid Passage
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[0019] The accompanying drawings are specific embodiments of the present invention.
[0020] An orderly stacking heat exchange device for irregular particles, the supporting plate and irregular particles are fixed by positioning protrusions and positioning grooves, pre-assembled to form an orderly stacking unit, and then the stacking unit is stacked layer by layer from the top of the container. Filled into the container, the relative position of the supporting plate and the irregular particles does not change during the filling process of the stacking unit. The odd-numbered and even-layered stacking units are connected with different U-shaped pipelines respectively, and finally a structure separated by the supporting plate can be formed. sequential stacking structure. By changing the position of the positioning protrusions on the support plate and the pre-assembled form of the stacking unit, a variety of different ordered stacking structures or stacking beds with the same orde...
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The invention discloses a special-shaped particle ordered packing heat-exchange device. A heat-exchange device body is provided with an inlet rectification grating, supporting flat plates and special-shaped particles. Positioning protrusions and vortex generators are arranged on the surfaces of the supporting flat plates; and positioning grooves and quadric surface structures are arranged on the surfaces of the special-shaped particles. Through the cooperation of the positioning protrusions and the positioning grooves, the special-shaped particles are fixedly assembled on the supporting flat plates to form single-layer packing units; the packing units are packed in the direction perpendicular to the supporting flat plates in sequence, and then an ordered packing structure can be formed. Compared with a grating supporting particle ordered packing structure, the special-shaped particle ordered packing heat-exchange device allows indirect heat exchange between two different fluids, and moreover, the flowing heat transfer performance is further improved by changing the flowing heat-transfer characteristics.
Description
technical field [0001] The invention belongs to the field of porous medium flow heat transfer, and relates to a heat exchange device for orderly accumulation of irregular particles. Background technique [0002] As a reactor and heat exchanger, the particle packed bed is widely used in nuclear engineering, chemical industry and other fields. According to the stacking form, the particle stacking bed can be divided into particle disorder stacking bed and particle order stacking bed. Particle disordered packed bed is widely used in industrial fields because of its advantages of easy realization of piled form and low cost. In actual industrial production, because of the disordered distribution of particles in the particle-disordered packed bed, the flow channel is complex and changeable, which will cause a large flow loss and is not conducive to its heat transfer performance. Therefore, although the particle disordered packing bed is widely used, it is not the optimal packing ...
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IPC IPC(8): F28D7/00F28F7/02
CPCF28D7/00F28F7/02
Inventor 杨剑贾浩楠田兴贾晓宇张尚王秋旺
Owner XI AN JIAOTONG UNIV