RU74706U1 - DEVICE FOR MEASURING GEOMETRIC DEFORMATION OF THE WALL OF STEEL VERTICAL RESERVOIRS - Google Patents

Abstract

The utility model relates to measuring equipment in the field of diagnostics of steel vertical tanks, and can be used to estimate the residual life of the tank wall by low-cycle fatigue. The proposed utility model solves the problem of non-contact measurement of the geometric deformation of the walls of steel vertical tanks during operation. This problem is solved due to the fact that the device contains a laser theodolite, paired with a unit based on a digital video camera, for removing optical information from the theodolite and transmitting it to a computer-based computer complex for processing.

Description

The utility model relates to measuring equipment in the field of diagnostics of steel vertical tanks, and can be used to assess the residual life of the tank wall by low-cycle fatigue.

Known devices for measuring the geometry of surfaces [1] are equipped with a measuring probe, a computing device, fixed racks with holes and clamps. Such a device measures the geometry of the surface of the part installed between the stationary racks, which complicates its use for measuring the geometry of the walls of vertical tanks.

Closest to the proposed utility model is a device for measuring the radial deviations of the belts of the casing of steel vertical tanks [2], containing a rod with a block, a plumb line, a plumb line and a measuring ruler.

The disadvantage of this device is the increased sensitivity to external influences, insufficient accuracy, dependence on weather conditions and the inconvenience of using the tank during operation.

The proposed utility model solves the problem of non-contact measurement of the geometric deformation of the walls of steel vertical tanks during operation and reduces the dependence on weather conditions and other external influences.

This problem is solved due to the fact that the device contains a laser theodolite, paired with a unit based on a digital video camera, for removing optical information from the theodolite and transmitting it to a computer-based computer complex for processing.

The essence of the proposed utility model is illustrated by drawings, in which Fig. 1 shows the design (side view), and in Fig. 2 the variable parameters of the tank (top view). The laser theodolite (2) is installed in front of the empty tank (4) at the required distance, it measures the distance to the nearest generatrix and the angle between the opposite walls α, for each of the tank’s belts. The received optical information is perceived by a unit based on a digital video camera and transmitted to a computer-based computer complex that processes the data and calculates the profile of the tank wall. In the process of filling the tank with liquid, the walls are loaded and change their geometry. After that, the profile is re-measured, and the computer complex calculates the geometric deformation of the tank wall.

LITERATURE

1. Patent RU No. 95103909, G01B 5 / 20,1996.

2. Zaichenko V.N. The operation of military depots and fuel bases. - M .: TsNIITEneftekhim, 2004.p.288.

Claims (1)

A device for measuring the radial deviations of the belts of the casing of steel vertical tanks, containing a rod with a block, a thread with a plumb line and a measuring line, characterized in that it contains a laser theodolite paired with a block based on a digital video camera, for removing optical information from the theodolite and transmitting it to the computing computer-based complex for processing.