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A Toothed Weir Type Scour Reduction Disc

A flow tray and tray technology, which is applied in the field of reactor internals, can solve the problems of affecting the distributor effect of hydrogenation reactor, the uneven depth of the liquid layer on the distribution tray, and the weak ability to resist the tilt of the tray, so as to achieve stability and uniformity The effect of inlet conditions, small size, and low requirements for installation accuracy

Active Publication Date: 2021-06-04
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 Toothed Weir Type Scour Reduction Disc
  • A Toothed Weir Type Scour Reduction Disc
  • A Toothed Weir Type Scour Reduction Disc

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Compared with Comparative Example 1, in Example 1 of the present invention, the toothed weir type shock-reducing and equalizing plate of the present invention is set in the upper head of the hydrogenation reactor, using such as figure 1 The toothed weir type anti-flush equalizer plate shown is used in combination with the common ERI type bubble cap type gas-liquid distributor. The parameters of the toothed weir type flow-distributing disc are as follows: the distributing disc is a disc-shaped structure with a diameter of 120mm; the height of the outer edge is 30mm; The height is 30% of the hem height. The height of the space between the bottom edge of the flow equalizing plate and the upper edge of the descending pipe is 40 mm; the number of the equalizing plate and the descending pipe is the same, and the flow equalizing plate and the descending pipe are arranged in an up-and-down structure, and the center line of the flow equalizing plate is in line with the descendin...

Embodiment 2

[0048]The 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 toothed weir type anti-flushing equalizer plate provided in the present invention is retained, and the bed diameter is The temperature and temperature difference are shown in Table 1.

[0049] Table 1 Application Results

[0050]

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Abstract

The invention discloses a toothed weir type impact reducing and equalizing plate, which belongs to the field of chemical equipment. The toothed weir type flow equalizer includes a tray and a distributor arranged on the tray; The flow plate is connected with the downcomer through a connecting rod. The toothed weir type impact reducing and equalizing plate has the characteristics of reducing impact and equalizing flow, 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): B01J8/02C10G45/02
CPCB01J8/0278C10G45/02C10G2300/202
Inventor 彭德强王璐瑶孟凡飞陈新刘杰
Owner CHINA PETROLEUM & CHEM CORP
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