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A separation unit replacement method of a horizontal three-stage cyclone separator

A technology of cyclone separator and separation unit, which is applied in the direction of cyclone device, etc., can solve the problems of no replacement of internal separation unit, change of processing capacity, and long replacement period, so as to shorten the overall construction period, improve installation accuracy and low construction cost Effect

Active Publication Date: 2019-06-14
SINOPEC NINGBO ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to various reasons such as changes in processing capacity, decline in efficiency, and damage to internal parts such as single pipes, baffles, and expansion joints, it is necessary to modify and replace the three-stage cyclone separator equipment
As far as the current horizontal three-stage cyclone separator is concerned, there is no effective way to replace the internal separation unit. Generally, the entire product can only be removed and replaced. The replacement period is long, the workload is heavy, and the cost is very high.

Method used

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  • A separation unit replacement method of a horizontal three-stage cyclone separator
  • A separation unit replacement method of a horizontal three-stage cyclone separator
  • A separation unit replacement method of a horizontal three-stage cyclone separator

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Embodiment 1: A separation unit replacement method of a horizontal three-stage cyclone separator, comprising the following steps:

[0023] (1) Set a vertical positioning support frame 2 at the bottom of the lower shell 1 of the horizontal three-stage cyclone separator, and support and fix the old separation unit 3 along the vertical direction;

[0024] (2) Cut and separate the upper shell 4 from the external pipeline (not shown in the figure), then cut off the upper shell 4 from the lower shell 1 and the old separation unit 3, and lift the upper shell 4 away with a crane ;

[0025] (3) Use a crane to lift the old separation unit 3 from the vertical positioning support frame, and lift it out from the upper part of the lower casing 1, and then use a crane to lift the new separation unit 5 from the upper part of the lower casing 1 Hang it in, then put the bottom of the new separation unit 5 vertically on the vertical positioning support frame 2;

[0026] (4) Use a crane ...

Embodiment 2

[0029] Embodiment 2: The remaining parts are the same as Embodiment 1, the difference is that when the vertical positioning support frame 2 is set, the installation hole group is first opened on the lining 11 at the bottom of the lower casing 1, and the installation hole group is set on the installation hole group. Vertically position the supporting frame 2 to support and fix the old separation unit 3 along the vertical direction; after removing the vertically positioning supporting frame 2, restore the lining 11 arranged in the installation hole group.

Embodiment 3

[0030] Embodiment 3: The remaining parts are the same as Embodiment 1, the difference is that the vertical positioning support frame 2 includes six horizontal support beams 21, oblique support beams 22, columns 23 and reinforcement beams 24, and the installation hole group includes the number and oblique support The first installation hole 25 corresponding to the beam 22 and the second installation hole 26 corresponding to the column 23 in number, the first installation hole 25 is located on the upper part of the second installation hole 26, and the lower end of the inclined support beam 22 is supported on the first installation hole 25 Inside, the upper ends of the inclined support beams 22 are abutted and supported on the bottom cone surface of the separation unit, a plurality of inclined support beams 22 are evenly distributed around the separation unit, and the horizontal support beams 21 are fixedly arranged between two adjacent inclined support beams 22 , the bottom end o...

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Abstract

The invention discloses a replacement method of a separation unit of a horizontal three-stage cyclone separator. The replacement method is characterized by comprising the steps that firstly, a vertical positioning support is arranged at the bottom of a lower shell of the horizontal three-stage cyclone separator, and an old separation unit is supported and fixed vertically; then, an upper shell is separated from an outer pipe by cutting; next, after the upper shell is cut off and separated from the lower shell and the old separation unit separately, the upper shell and the old separation unit are lifted out by a crane separately; when a new separation unit is lifted and placed into the vertical positioning support by the crane, supported and fixed, the upper shell removed is lifted to the position above the lower shell by the crane, and the upper shell and the lower shell are aligned and welded; and the new separation unit and the upper shell are aligned and welded, and then the upper shell is connected to the outer pipe. The replacement method has the advantages that the constructional difficulties are reduced greatly, and the installation accuracy is improved effectively; and the replacement process is quick and convenient.

Description

technical field [0001] The invention relates to a method for replacing large equipment, in particular to a method for replacing a separation unit of a horizontal three-stage cyclone separator. Background technique [0002] The three-stage cyclone separator is the third-stage cyclone separator in the energy recovery device of the fluidized catalytic cracking refining system in the oil refining industry. The particles are separated to provide purified high-temperature and high-pressure flue gas for the flue gas turbine, thereby ensuring long-term stable operation of the turbine. Therefore, the three-stage cyclone separator is the key equipment that determines the service life of the energy recovery unit of the fluid catalytic cracking refining system. Due to various reasons such as changes in processing capacity, decreased efficiency, and damage to internal parts such as single pipes, partitions, and expansion joints, it is necessary to modify and replace the three-stage cycl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B04C11/00
CPCB04C11/00
Inventor 张明杰
Owner SINOPEC NINGBO ENG