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A method for measuring the shape deviation of an ellipsoid head

A measurement method, ellipsoidal technology, applied in the field of measurement, can solve the problems of high cost of head measurement and inconvenient operation, and achieve the effects of simplifying and cumbersome, avoiding measurement errors and high measurement accuracy

Active Publication Date: 2022-07-19
SHANXI YANG MEI CHEM IND MACHINERY
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Problems solved by technology

[0003] The invention aims to solve the technical problems of high cost and inconvenient operation of the existing head measurement

Method used

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  • A method for measuring the shape deviation of an ellipsoid head
  • A method for measuring the shape deviation of an ellipsoid head
  • A method for measuring the shape deviation of an ellipsoid head

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Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

[0041] refer to Figure 1 to Figure 2 , a method for measuring the shape deviation of an ellipsoid head of the present invention comprises the following steps in turn:

[0042] 1) Place the end face of the ellipsoid head on the ground, make the end face parallel to the ground, and support and fix it;

[0043] 2) Select multiple projection positions along a center line of the end face of the ellipsoid head, and the projection points on the inner wall of the ellipsoid head that correspond vertically to each projection position are the projection points;

[0044] 3), me...

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Abstract

The invention relates to a measurement method, in particular to a method for measuring the shape deviation of an ellipsoid head, and aims to solve the technical problems of high measurement cost and inconvenient operation of the existing elliptical head. The following technical scheme is adopted: select multiple positions of a center line of the end face of the elliptical head for projection, and through the detection of the projection distance in the vertical and horizontal directions, combined with the theoretical curve equation of the head itself, each projection can be obtained. Points and the coordinates of the corresponding points, and then obtain the concave and convex conditions of the head corresponding to each projection point and the specific deviation value, and finally obtain the maximum shape deviation of the head and the simulated outline of the head.

Description

technical field [0001] The invention relates to a measurement method, in particular to a measurement method for the shape deviation of an ellipsoid head. Background technique [0002] The head is the most critical part of the pressure vessel, and the ellipsoidal head is one of the most commonly used heads. The ellipsoid head is a structure formed by adding a cylinder of equal diameter coaxially to the circular plane of the half ellipsoid shell. times. After the head is made, it needs to be measured to detect the shape deviation of the head. At present, it is generally necessary to make a head template, which is made according to the standard graphic size and the size is smaller than the internal size of the head. When measuring, the head template is placed in the head, and the gap between the head and the head template is measured to determine. Head shape deviation. For heads of different specifications, head templates of corresponding sizes need to be prepared. In order...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/20
CPCG01B5/20
Inventor 段晓健李英杰咸耀龙杨宇仙笑笑宋宇光
Owner SHANXI YANG MEI CHEM IND MACHINERY
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