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          Industry applications

          Super large steam turbine 3D scanning

          Super large steam turbine 3D scanning case

          A large domestic thermal power plant company invited our technicians to perform three-dimensional scanning on the turbine casing of the enterprise to obtain high-precision three-dimensional data, thus providing effective data support for the production design of the turbine insulation cabin.

          Practical problems

          1. The steam turbine casing is welded by a large casting, about 5m long and about 2m high. The scanning environment is complicated and the scanning difficulty is increased. The traditional measuring tools take a long time and cannot complete the complete scanning and data splicing.

          2. During the scanning process of the steam turbine casing, the object to be measured is large and cumbersome, the surface contour is different, the shape is complicated, and the cumulative error is too large. How to eliminate the influence caused by the error is the biggest problem.

          Hualang solutions

          The steam turbine is divided into two parts for scanning and the casing scanning area is large. In order to eliminate the scanning cumulative error and complete splicing, Hualang 3D technical engineer proposes a solution: using the ultra-large-format 3D scanner α7000 and the 3D photogrammetric system HL-3DP quickly. The high-precision 3D data of the turbine casing is combined with the reverse design software to convert the steam turbine casing point cloud data into triangular mesh surface data. It provides powerful data for the production design of the turbine insulation cabin.

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          Super large steam turbine on-site physical map

           

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          Super large steam turbine three-dimensional data map

          The HL-3DP is a portable optical coordinate that measures the three-dimensional coordinates of all landmarks (or codes) at a time. Can be used alone or in combination with a 3D scanner. The high-resolution digital camera is used to take pictures of objects from different angles during measurement, and the resulting series of photos can be solved by software to obtain the precise spatial coordinates of these reference points.

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          Super large steam turbine on-site physical map

          α7000 is a 3D scanner for large objects. It has large scanning width, fast scanning speed, high precision and strong equipment stability. It can be used with 3D photogrammetry to correct point cloud information of large surface.  greatly improve the overall point cloud stitching accuracy of the 3D scanner, and improve work efficiency.

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          Super large steam turbine on-site measurement physical map

           

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          Super large steam turbine three-dimensional data map

           

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          Very large steam turbine STL data chart

           

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          Very large steam turbine STL data chart

           

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          Very large steam turbine STL data chart

           

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