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Three-dimensional laser scanning detection method for coke tower cylinder deformation

A technology of scanning detection and detection method, which is applied to measurement devices, optical devices, instruments, etc., can solve the problems of lack of detailed description and unclear implementation methods, so as to ensure the safety of inspection personnel, a high degree of automation, and save downtime inspection costs. Effect

Active Publication Date: 2019-12-10
CHINA SPECIAL EQUIP INSPECTION & RES INST
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AI Technical Summary

Problems solved by technology

At present, some foreign studies have begun to use 3D laser scanning technology to detect the deformation of the coke tower, but the specific implementation method of the detection has not been elaborated, and it is not clear whether it can be quickly detected online, and there is no such method in China for the deformation of the coke tower cylinder detection applications

Method used

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  • Three-dimensional laser scanning detection method for coke tower cylinder deformation
  • Three-dimensional laser scanning detection method for coke tower cylinder deformation

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Experimental program
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Effect test

Embodiment 1

[0046]The basic information and testing equipment information of the coke drum tested are shown in Table 1. The coke drum was internally inspected in 2016. The maximum inner diameter measured by physical measurement method was 6300mm, the designed inner diameter was 6100mm, and the inner diameter increased by about 200mm. However, the deformation amount and position obtained by this detection method are relatively rough.

[0047] Table 1 Basic parameters of coke drum detection

[0048]

[0049] Since there is no actual measurement data of the original size of the coke drum, a three-dimensional model of the undeformed coke drum is established with reference to the design structure size.

[0050] This method is used to detect the coke drum, and the point cloud data of the deformed coke drum body obtained according to the actual measurement results is compared with the three-dimensional model of the undeformed coke drum. The result is as figure 1 shown. Depend on figure 1 ...

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Abstract

The invention discloses a three-dimensional laser scanning detection method for coke tower cylinder deformation. The three-dimensional laser scanning detection method comprises the following steps: (1) carrying out preparation before detection; (2) connecting a scanner with a nozzle of a coke cutter; (3) carrying out parameter detection and remote control setting; (4) entering a coke tower for scanning detection; (5) taking out, disassembling and confirming a result; (6) generating deformed coke tower cylinder point cloud data; (7) establishing point cloud data or a three-dimensional model ofthe undeformed coke tower; and (8) analyzing the deformation amount and the deformation position of the coke tower.

Description

technical field [0001] The invention relates to a detection method for the deformation and damage of the coke tower equipment cylinder of the delayed coking device in the petrochemical field, more particularly, it refers to a detection technology based on three-dimensional laser scanning, which can detect the cylinder deformation of the coke tower equipment in service on-line method for rapid detection. Background technique [0002] The coke tower is the key equipment for producing coke in the refinery. Its production process is a delayed coking process, and its function is to provide thermal decomposition and comprehensive reaction sites for raw materials. The operating conditions of the coke drum are harsh, and it is a pressure vessel subjected to thermomechanical stress cycles. Generally speaking, the entire operation period of the coke tower is 24-48 hours. The process flow of the coke tower includes four stages: steam heating, oil filling, water cooling and decoking. ...

Claims

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Application Information

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IPC IPC(8): G01B11/16G01B11/24
CPCG01B11/16G01B11/24
Inventor 韩志远曹逻炜李志峰谢国山宋利滨朱国栋康昊源
Owner CHINA SPECIAL EQUIP INSPECTION & RES INST
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