An auxiliary identification method for gas turbine borehole inspection components based on spatial coordinate feedback
By using spatial coordinate feedback technology in gas turbine borehole inspection, component names and defects can be identified in real time, solving the problem of difficult component identification in gas turbine borehole inspection and improving detection efficiency and reliability.
Patent Information
- Application Number
- CN202111402145.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-19
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2041-11-19
AI Technical Summary
The component structure cannot be quickly identified during the engine borehole inspection, resulting in low detection efficiency and easy misjudgment, posing a safety hazard.
A method based on spatial coordinate feedback is adopted. By installing a position sensor at the endoscope lens and combining it with the three-dimensional solid model of the gas turbine components, auxiliary prompts such as component name, number and defect information are provided in real time.
It achieves rapid and accurate identification of gas turbine components during peephole inspection, improves detection efficiency and result reliability, and ensures safe and stable operation of the unit.
Smart Images

Figure CN114078207B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of non-destructive testing, and in particular is an auxiliary identification method for gas engine borehole inspection components based on spatial coordinate feedback. Background Art
[0002] A borehole inspection involves visually inspecting the engine components through a pre-installed borehole using a specialized borehole probe while the engine is temporarily shut down. This allows for timely and effective assessment of the service quality and health of the engine components. Regular borehole inspections of in-service engine components are essential for ensuring safe and stable operation and are a key component of daily engine maintenance.
[0003] Due to the large number of internal components of the gas turbine and the complex assembly structure, it is often impossible to accurately identify the structural characteristics of the inspected components during the borehole inspection. It takes a lot of time to combine the components and assembly drawings and change multiple viewing angles to confirm the type and structure of the components, resulting in low efficiency of the borehole inspection and easy misjudgment of the results, causing safety hazards to the unit.
[0004] Therefore, an auxiliary identification method for gas turbine borehole inspection components based on spatial coordinate feedback is developed, which can provide inspectors with real-time, rapid, accurate and convenient auxiliary identification prompts of the type, location and number of the inspected components when implementing in-situ borehole inspection of gas turbine components. It is an urgent problem to overcome the limitations of the current in-situ borehole inspection of gas turbine components, which easily leads to component identification confusion, low detection efficiency and poor result reliability when facing complex internal structures. Summary of the Invention
[0005] The purpose of the present invention is to provide a gas engine borehole inspection component auxiliary identification method based on spatial coordinate feedback to address the problem that component structures cannot be quickly identified during current gas engine borehole inspections.
[0006] The present invention is achieved by adopting the following technical solutions:
[0007] A method for assisting identification of components during borehole inspection of a gas turbine based on spatial coordinate feedback comprises the following steps:
[0008] Step 1: Install two position sensors in parallel at the endoscope lens and install the origin positioning signal receiver at the characteristic position of the gas turbine;
[0009] Step 2: Set grid coordinate points in the 3D solid model of all assembled gas turbine components and import it into the analysis module;
[0010] Step 3: During the actual borehole inspection of the gas turbine components, the position sensor at the lens transmits electromagnetic wave signals to the signal receiver in real time. The signal receiver inputs the real-time coordinate points of the position sensor into the analysis module;
[0011] Step 4: Connect the two coordinate points of the position sensor into a directional vector viewing line, extract the 3D model data under the corresponding viewing line in the analysis module, and provide real-time auxiliary prompts to the on-site borehole personnel.
[0012] A further improvement of the present invention is that the two position sensors in step 1 are powered by a power cord bundled with the insertion tube.
[0013] A further improvement of the present invention is that the two position sensors in step 1 are powered wirelessly by built-in batteries.
[0014] A further improvement of the present invention is that the characteristic position of the combustion engine in step 1 is the center position of the cross section of the combustion engine air intake chamber.
[0015] A further improvement of the present invention is that the characteristic position of the combustion engine in step 1 is the center position of the cross section of the combustion engine exhaust chamber.
[0016] A further improvement of the present invention is that the density spacing of the grid coordinate points in step 2 is within 10 mm.
[0017] A further improvement of the present invention is that the real-time coordinate points in step 3 include X, Y, and Z three-axis coordinate point data.
[0018] A further improvement of the present invention is that the auxiliary prompt in step 4 includes the component name, number, local location information and common defect information of the component.
[0019] The present invention has at least the following beneficial technical effects:
[0020] The present invention provides a method for auxiliary identification of components during borehole inspection of gas turbines based on spatial coordinate feedback. According to the real-time coordinate points transmitted by the position sensor arranged at the endoscope lens, the three-dimensional solid model of the component at the lens position and viewing angle as well as auxiliary prompt information such as the component name, number, local position, common defects, etc. are derived in real time and quickly. This overcomes the limitations of current in-situ borehole inspection of gas turbine components, which are prone to component identification confusion, low detection efficiency, and poor result reliability when facing complex internal structures. This greatly improves the efficiency and result reliability of borehole inspection of gas turbine components, and provides technical support for the safe and stable operation of the unit. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 The present invention is a flow chart of a method for assisting in identifying components of a gas engine borehole inspection based on spatial coordinate feedback. DETAILED DESCRIPTION
[0022] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, unless there is a conflict, the embodiments of the present disclosure and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0023] Refer to the attached Figure 1 The present invention provides a method for assisting in identifying components of a gas engine borehole inspection based on spatial coordinate feedback, comprising the following steps:
[0024] Step 1: Install two position sensors in parallel at the endoscope lens and install the origin positioning signal receiver at the characteristic position of the gas turbine.
[0025] Step 2: Set grid coordinate points in the 3D solid model after all components of the gas turbine are assembled and import it into the analysis module.
[0026] Step 3: During the actual borehole inspection of the gas turbine components, the position sensor at the lens transmits electromagnetic wave signals to the signal receiver in real time, and the signal receiver inputs the real-time coordinate points of the position sensor into the analysis module.
[0027] Step 4: Connect the two coordinate points of the position sensor into a directional vector viewing line, extract the 3D model data under the corresponding viewing line in the analysis module, and provide real-time auxiliary prompts to the on-site borehole personnel.
[0028] In this embodiment, the power supply for the two position sensors in step 1 can be provided by a power cord bundled with the insertion tube or wirelessly powered by a built-in battery.
[0029] In this embodiment, the characteristic position of the engine in step 1 may be the center position of the cross section of the engine intake chamber or exhaust chamber. The center position helps to quickly calculate the relative position of the position sensor coordinate point in the overall model grid coordinate point.
[0030] In this embodiment, the grid coordinate point density interval in step 2 is 10 mm. Within 10 mm, a high position and numbering accuracy of the identified component image can be guaranteed.
[0031] In this embodiment, the real-time coordinate points in step 3 include X, Y, and Z coordinate point data.
[0032] In this embodiment, the auxiliary prompts in step 4 include the component name, number, local location information, and common component defect information, which can greatly improve the efficiency and accuracy of on-site borehole inspections. Furthermore, the common defect prompts can help novice borehole inspectors or those with less field experience improve the focus and specificity of their inspections, ensuring the high reliability of borehole inspection results.
[0033] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.
Claims
1. A method for auxiliary identification of gas engine borehole inspection components based on spatial coordinate feedback, characterized in that: The following steps are involved: Step 1: Install two position sensors in parallel at the endoscope lens and install an origin positioning signal receiver at the characteristic position of the gas turbine; The characteristic position of the gas turbine is the center position of the gas turbine inlet chamber cross section or the center position of the gas turbine exhaust chamber cross section; Step 2: Set grid coordinate points in the assembled 3D solid model of all gas turbine components and import it into the analysis module; Step 3: During the actual borehole inspection of the gas turbine components, the position sensor at the lens transmits electromagnetic wave signals to the signal receiver in real time, and the signal receiver inputs the real-time coordinate points of the position sensor into the analysis module; Step 4: Connect the two coordinate points of the position sensor into a directional vector viewing line, extract the 3D model data under the corresponding viewing line in the analysis module, and provide real-time auxiliary prompts to the on-site borehole personnel. The auxiliary prompts include component name, number, local location information, and component defect information.
2. The method for auxiliary identification of gas engine borehole inspection components based on spatial coordinate feedback according to claim 1, characterized in that: The two position sensors in step 1 are powered by a power cord bundled with the insertion tube.
3. The method for auxiliary identification of gas engine borehole inspection components based on spatial coordinate feedback according to claim 1 is characterized in that: The two position sensors in step 1 are powered wirelessly by built-in batteries.
4. The method for auxiliary identification of gas engine borehole inspection components based on spatial coordinate feedback according to claim 1, characterized in that: The density spacing of the grid coordinate points in step 2 is within 10 mm.
5. The method for auxiliary identification of gas engine borehole inspection components based on spatial coordinate feedback according to claim 1, characterized in that: The real-time coordinate points in step 3 include X, Y, and Z axis coordinate point data.
Citation Information
Patent Citations
Method for detecting hydraulic tunnel defects based on three-dimensional dynamic model
CN113256599A