In order to measure the shell of super large steam turbine, a large domestic thermal power plant company specially invited our technicians to scan the shell of the steam turbine of the company to obtain high-precision three-dimensional data, so as to provide effective data support for the production and design of the steam turbine insulation cabin.
Practical problems
1. The steam turbine shell is welded by large castings, about 5m in length and 2m in height. The complex scanning environment increases the difficulty of scanning. It takes a long time to use traditional measurement tools and cannot perform complete scanning and data splicing.
2. During the scanning process of the steam turbine shell, due to the large and heavy object to be tested, the surface contour is different, the shape is complicated, the cumulative error will be too large, how to eliminate the influence of the error is the biggest problem.
Holon solutions
The steam turbine is divided into two parts for scanning and the shell scanning area is large. In order to eliminate the problems of cumulative scanning error and complete splicing, Hualang 3D technical engineers put forward a solution: use ultra-large format 3D scanner α7000 and 3D photogrammetric system HL-3DP fast Obtain high-precision three-dimensional data of the steam turbine shell combined with reverse design software to convert the point cloud data of the steam turbine shell into triangular mesh data. It provides powerful data for the production design of the steam turbine insulation cabin.
On-site physical map of super large steam turbine
Three-dimensional data map of super large steam turbine
HL-3DP is a portable optical three-dimensional coordinate, which can measure the three-dimensional coordinates of all mark points (or codes) at one time. It can be used alone or in conjunction with a 3D scanner. During the measurement, a high-resolution digital camera is used to take pictures of the object from different angles, and the obtained series of photos are solved by software, and the precise spatial coordinates of these reference points can be obtained.
On-site physical map of super large steam turbine
α7000 is a 3D scanner specifically for large objects. It has the characteristics of large scanning format, fast scanning speed, high accuracy, and strong equipment stability. It can be used with 3D photogrammetry to correct the point cloud information of large-area curved surfaces. , To greatly improve the overall point cloud splicing accuracy of the 3D scanner and improve work efficiency.
Physical map of super large steam turbine site measurement
Three-dimensional data map of super large steam turbine
STL data chart of super large steam turbine
STL data chart of super large steam turbine
STL data chart of super large steam turbine