A grid-type shock-reducing flow equalizer

A grille and flow plate technology, applied in the field of reactor internals, can solve problems affecting the effect of hydrogenation reactor distributors, uneven depth of liquid layer on the distribution plate, weak ability to resist plate tilting, etc., to achieve fine The effect of optimized adjustment, smooth and uniform inlet conditions, and low requirements for installation accuracy

Active Publication Date: 2021-12-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bubble cap distributor based on the suction principle is easily covered or partially covered, resulting in uneven material distribution, and when the inlet liquid is unevenly distributed, it will seriously affect the effect of the top distributor of the hydrogenation reactor
[0011] Aiming at the technical problems that the traditional gas-liquid distributor has weak anti-tray tilting ability and the uneven depth of the liquid layer on the distribution plate has a great influence, it is necessary to develop a new type of internal component technology with good distribution effect and low installation accuracy requirements for Reduce the strong impact force formed by the residual kinetic energy of the fluid entering the reactor, which is used to eliminate the "wave pushing" phenomenon of the liquid in the inclined flow state on the liquid layer on the distribution plate, and realize the uniform distribution of the fluid

Method used

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  • A grid-type shock-reducing flow equalizer
  • A grid-type shock-reducing flow equalizer
  • A grid-type shock-reducing flow equalizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Compared with Comparative Example 1, in Example 1 of the present invention, the grid-type shock-reducing flow equalizer of the present invention is arranged in the upper head of the hydrogenation reactor, using such as figure 1 The grid-type shock-reducing equalizer shown is used in combination with a common ERI-type bubble-cap gas-liquid distributor. The parameters of the grid-type impact-reducing flow-distributor are as follows: the number of the grids and the descending pipes are the same, and the grids and the descending pipes are arranged in a vertical structure. There is a space between the lower surface of the grid and the uppermost edge of the downcomer, and the height of the space is 50mm. The grid includes a grid plate and a grid plate connecting rod, and 6 grid plates are connected together by a grid plate connecting rod to form a grid, and the 6 grid plates are arranged in parallel in the horizontal direction, And the grid plate is arranged obliquely, and t...

Embodiment 2

[0046] Same as Example 1, the difference is that the conventional ERI gas-liquid distributor in the field in the original hydrogenation reactor is canceled, and only the grid-type anti-flush equalizer provided in the present invention is retained, and the bed diameter is The temperature and temperature difference are shown in Table 1.

[0047] Table 1 Application Results

[0048]

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Abstract

The invention discloses a grid-type shock-reducing and flow-distributing plate, which belongs to the field of chemical equipment. The grid-type shock-reducing flow equalizing tray includes a tray and a distributor arranged on the tray; the distributor includes an equalizing grid, a downcomer and a connecting rod, the grille is arranged above the downcomer, and the grille It is connected with the down pipe through a connecting rod. The grid-type impact reduction and flow equalization plate has the characteristics of impact reduction and current equalization function, good distribution effect, small volume, and low installation accuracy requirements.

Description

technical field [0001] The invention relates to the field of chemical equipment, in particular to a reactor internal component. Background technique [0002] In recent years, with the rapid development of my country's national economy and the enhancement of environmental protection awareness, the quality and environmental protection requirements of petrochemical products are getting higher and higher. In order to meet the needs of processing sour crude oil, meet the ever-increasing demand for chemical raw materials, and improve product quality, the importance and role of hydrogenation technology in the oil refining industry is increasing. Whether the hydrogenation reaction can be operated stably, whether the hydrogenation catalyst can fully play its role, and whether the product quality can achieve high quality largely depend on the uniformity of the distribution of gas-liquid materials in the catalyst bed in the hydrogenation reactor. . The uniform distribution of gas and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/02
CPCB01J8/0278B01J8/0292B01J2204/002
Inventor 彭德强王璐瑶孟凡飞陈新刘杰
Owner CHINA PETROLEUM & CHEM CORP
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