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A spliced ​​intermediate partition and wall-dividing rectification tower and a method for transforming a traditional rectification tower

A middle partition, splicing technology, applied in separation methods, chemical instruments and methods, fractionation, etc., can solve the problems of gas and liquid leakage on both sides of the partition, installation difficulties, etc., to reduce stress damage, reduce investment, The effect of reducing the likelihood

Active Publication Date: 2019-06-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the installation difficulty in the engineering installation design of the detachable partition of the existing dividing wall rectification tower and the problem of gas-liquid phase leakage on both sides of the partition, the present invention provides a spliced ​​middle partition and the use of traditional rectification tower The method of transforming the column into a dividing wall rectification column, which effectively prevents the mutual leakage of the gas-liquid phase streams on both sides of the partition, and the installation and disassembly of the partition is convenient, which improves the utilization rate of old equipment and reduces the cost

Method used

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  • A spliced ​​intermediate partition and wall-dividing rectification tower and a method for transforming a traditional rectification tower
  • A spliced ​​intermediate partition and wall-dividing rectification tower and a method for transforming a traditional rectification tower
  • A spliced ​​intermediate partition and wall-dividing rectification tower and a method for transforming a traditional rectification tower

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Through the calculation of the physical properties of the raw materials, the height of the public rectification section, the height of the partition section and the height of the public stripping section when the old column is transformed into a partition column are determined. Determine the number of manholes in the original tower and the number of manholes in the partition tower, and seal the redundant manholes. If the original tower is a packed tower, clear the internals such as the packing support in the tower; if the original tower is a plate tower, clear the tower internals such as floats, reinforcing rings, and collecting cones in the tower to ensure that the space in the tower is sufficient for the transformation of the clapboard tower .

[0035] Determine the installation direction of the partition according to the site conditions of the tower. The fixing surface of the slats and the partition is processed with concave and convex surface (such as Figure 4 )....

Embodiment 2

[0037] Same as Example 1, the difference is that the fixing method between the slats and the partition does not adopt the form of interlocking concave and convex surfaces, but adopts the fixing method of sealing plate + bolt fastening (such as Figure 8 ): The bolt openings of the partition plate 3, the slat 4 and the sealing plate 15 correspond one by one to ensure the smooth installation of the bolts. After installing the sealing plates 15 at both ends of the dividing plate, install the sealing plate 16 between the upper and lower dividing plates. The bolt holes of the sealing plate 16 correspond to the horizontal direction bolt holes of the dividing plate 3 to ensure the smooth installation and sealing of the bolts. The remaining partitions are installed in sequence according to the above method.

[0038] The present invention solves the engineering problem of transforming a conventional rectification tower into a partitioned-wall rectification tower through the special des...

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Abstract

The invention discloses a spliced middle partition plate and a method for transforming a traditional rectifying tower. The spliced middle partition plate has the following properties that: the middle partition plate is formed by splicing a plurality of sections of partition plates from top to bottom, wherein the spliced surface of two sections of the partition plates spliced from top to bottom is a concave surface or a convex surface with a certain inclination angle. The transformation method comprises the following steps: canceling the original column plate or packing structure in the traditional rectifying tower, mounting the previous spliced middle partition plate at a middle position of the traditional rectifying tower, and partitioning the tower into four parts, namely a tower top common rectifying section, a tower middle feeding section, a tower middle discharging section and a tower bottom common stripping section. According to the method disclosed by the invention, mutual leakage of gas-liquid phase flow on two sides of the partition plate is effectively avoided, the partition plate is convenient to mount and detach, the utilization rate of old equipment is improved, and the cost is reduced.

Description

technical field [0001] The invention relates to a section-designed intermediate partition and a method for transforming a traditional rectification tower into a partitioned-wall rectification tower. Background technique [0002] The refinery is an energy production unit and also a large energy consumer, and the distillation process occupies a considerable proportion of the energy consumption of the refinery. [0003] At present, the distillation process of refineries and chemical plants mainly uses traditional towers to separate materials. In theory, to obtain N products, N-1 distillation towers need to be built, and the corresponding investment and energy consumption are relatively large. Therefore, in order to reduce investment and process energy consumption, it is the best choice to develop new distillation equipment. Among them, the dividing wall column can greatly reduce energy consumption and investment compared with traditional distillation columns, and is a typical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D3/14B01D3/32
CPCB01D3/141B01D3/32
Inventor 陈建兵张英高景山薄德臣王阳峰
Owner CHINA PETROLEUM & CHEM CORP
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