Downcomer, suction type gas-liquid distributor, overflow type gas-liquid distributor and mixed type gas-liquid distributor
A technology of gas-liquid distributor and downcomer, which is applied in the field of overflow type, downcomer, suction type, and hybrid gas-liquid distributor, which can solve the problem of central confluence that weakens the performance of droplet atomization, is difficult to install and Disassembly, easy scaling or wear and other problems, to achieve the effect of saving gas-liquid mixing space, easy installation and disassembly, and enhanced mixing performance
Active Publication Date: 2021-03-26
INST OF PROCESS ENG CHINESE ACAD OF SCI +1
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Problems solved by technology
[0006] The weakening of the central confluence phenomenon, the improvement of droplet atomization performance and the improvement of gas-liquid mixing efficiency are the main improvement directions of the suction-type gas-liquid distributor. At present, the main means of improvement is to slot in specific positions of the cap and downcomer Or opening holes, or by adding additional components, these additional small components are easy to foul or wear, difficult to install and disassemble, and increase the pressure drop
Method used
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[0046] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0047] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
[0048] In the p...
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The invention discloses a downcomer, a suction type gas-liquid distributor, an overflow type gas-liquid distributor and a mixed type gas-liquid distributor. The two ends of the downcomer are open, theside wall of the downcomer is in an inwards-concave arc shape, and the diameters of the two ends of the downcomer is larger than the diameter of the middle of the downcomer. A liquid crushing plate is arranged at the center of the bottom end of the downcomer, liquid crushing holes are formed in the liquid crushing plate, and the liquid crushing plate is connected with the side wall of the downcomer through a first connecting rod. The suction type gas-liquid distributor comprises the downcomer and a cover hood covering the downcomer, wherein the cover hood comprises a cover hood top wall and acover hood side wall, and a strip-shaped seam extending in the height direction of the cover hood side wall is formed in the bottom end of the cover hood side wall. The overflow type gas-liquid distributor comprises the downcomer, wherein overflow holes are formed in the downcomer. The mixed type gas-liquid distributor comprises the downcomer and a cover hood arranged above the downcomer in a covering mode, wherein overflow holes are formed in the downcomer. The invention provides the downcomer and the suction type, overflow type and mixed type gas-liquid distributors capable of improving andstabilizing gas-liquid two-phase distribution and enabling the gas-liquid two-phase distribution to uniformly enter a bed layer.
Description
technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a downcomer and a suction type, overflow type, and hybrid gas-liquid distributor. Background technique [0002] The uniform distribution of gas-liquid two-phase flow in the bed is an important indicator of the packed bed reactor, which directly affects the wetting of the catalyst, the contact time of the reactants, whether there will be bias flow, short circuit and local hot spots in the packed bed, and finally It affects the life of the catalyst, the operating cycle of the device and the quality of the product. Whether the gas-liquid distribution in the packed bed is even or not largely depends on the gas-liquid distributor, especially in some large-scale and high-precision reactors, the importance of gas-liquid distribution is becoming more and more prominent. . [0003] The gas-liquid distributor is an internal component used in a packed bed reactor. Its function ...
Claims
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IPC IPC(8): B01J8/02
CPCB01J8/02B01J8/0278
Inventor 雍玉梅杨超莫晗旸张广积姜跃佳
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI