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Concentric double-layer ring supergravity rotating bed

A high-gravity rotating bed and double-layer technology, applied in chemical methods for reacting liquid and gas media, chemical/physical/physicochemical fixed reactors, film-type liquid and gas reactions, etc., can solve the limitations Application, low gas-liquid mass transfer rate, etc.

Inactive Publication Date: 2021-06-11
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the gas-liquid mass transfer rate of the rotating bed is not high, which limits its application in some industries

Method used

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  • Concentric double-layer ring supergravity rotating bed
  • Concentric double-layer ring supergravity rotating bed
  • Concentric double-layer ring supergravity rotating bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The concentric double-layer rotary bed described in this embodiment includes a cavity 2 , a rotor 10 is arranged in the cavity 2 , and a dynamic seal is arranged between the rotor 10 and the cavity 2 . The rotating shaft 1 of the rotor 10 penetrates the cavity 2 from the bottom plate of the cavity 2 , and the rotating shaft is sealedly connected with the cavity to drive the rotor 10 to rotate along the circumferential direction of the rotating shaft 1 to generate centrifugal force.

[0024] The side of the chamber 2 is provided with a gas inlet pipe 11, the upper panel of the chamber 2 is provided with a gas outlet pipe 9, and the gas outlet pipe 9 communicates with the central chamber of the rotor 10; the bottom plate of the chamber 2 is provided with a liquid outlet pipe 3, and the liquid The inlet pipe 8 penetrates the central chamber of the chamber 2 and the rotor 10 from the upper part of the chamber 2, the liquid inlet pipe 8 is coaxially installed with the rotatin...

Embodiment 2

[0029] With ethanol-water as the material system, under the high-gravity rotating bed speed of 1300r / min, the inner diameter is 400mm, the outer diameter is 1000mm, and the height is 100mm. The concentric ring rotor with only sieve rings and the double-layer rotor of Example 1 The concentric ring rotor is used for the total reflux atmospheric distillation experiment. The theoretical plate number can reach 3.6~5.3 pieces per meter, and the theoretical plate number of the double-layer concentric ring rotor is 20~25% higher than that of the concentric ring rotor with only sieve rings, which shows that the double-layer concentric ring supergravity rotating bed transmission The mass efficiency is better than that of the concentric circle supergravity rotating bed with only sieve circles, so it has broad application prospects.

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Abstract

The invention discloses a concentric double-layer ring supergravity rotating bed which comprises a cavity, wherein a rotor is arranged in the cavity; the rotor consists of an upper disc and a lower disc, a group of concentric double-layer concentric rings with uniformly increased diameters are fixed between the upper disc and the lower disc, each double-layer concentric ring consists of a sieve hole ring and a bulged hole ring, the sieve hole ring is positioned in the bulged hole ring, the diameter of the sieve hole ring is smaller than that of the bulged hole ring, the bulged hole ring is provided with protruding bulged holes, the sieve hole ring is provided with sieve holes and a non-perforated area, the sieve holes in the sieve hole ring and the bulged holes in the bulged hole ring are staggered in position, and the non-perforated area of the sieve hole ring right faces the bulged holes of the bulged hole ring. The positions of the sieve holes and the bulged holes in the rotor are staggered, so that linear flow of gas is avoided, the gas passes through the sieve holes in the two sides of the non-perforated area in an S-shaped zigzag flow manner, the turbulence degree of the gas is increased, the gas-phase mass transfer coefficient of the rotating bed is increased, and the gas-liquid mass transfer efficiency of the rotating bed is improved.

Description

technical field [0001] The invention relates to a gas-liquid mass transfer device, in particular to a concentric double-layer circle supergravity rotating bed. Background technique [0002] The high-gravity rotating bed is a new type of equipment that enhances mass transfer. Because of its high mass transfer intensity, it can greatly reduce the volume of the equipment and greatly improve production efficiency. The principle is to generate a centrifugal force field by rotating the rotor, and use the centrifugal force field to simulate the supergravity field. Under the supergravity field, the liquid is torn into micron-sized droplets, liquid foam and liquid film under the action of huge shear force. A huge interphase transfer area is generated, which greatly strengthens the gas-liquid mass transfer process. Under the same operating conditions, compared with commonly used plate towers, the height of the mass transfer unit can be reduced by 1-2 orders of magnitude, the volumetr...

Claims

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Application Information

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IPC IPC(8): B01J10/00B01J10/02B01J19/18
CPCB01J10/00B01J10/02B01J19/0053B01J19/18
Inventor 李育敏王宇航计建炳
Owner ZHEJIANG UNIV OF TECH
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