Method for supervising and analyzing metal of typical component of gas turbine unit

Abstract

The invention belongs to the technical field of gas unit metal supervision, and particularly relates to a gas unit typical component metal supervision analysis method, which adopts a mode of deploying a sensor on a gas unit typical component and collecting dynamic information of a target component in real time through the sensor to integrate a three-dimensional digital model of the target component arranged in a system, so that the three-dimensional digital model of the target component is obtained. The target part three-dimensional digital model can display real-time information, and meanwhile, through presetting an alarm threshold value, the returned data is processed in real time, an alarm is given in time after the alarm value is reached, and manual intervention processing is notified in time before an accident occurs, so that the non-planned shutdown frequency and time of a unit are reduced, and the reliability of safe operation of equipment is improved; and the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of metal monitoring of gas generator sets, and in particular relates to a metal monitoring and analysis method for typical components of a gas generator set. Background Art

[0002] Metal supervision is also called metal technical supervision. Its purpose is to timely understand and grasp the quality status of metal parts of equipment through inspection and diagnosis of monitored parts, to prevent various accidents caused by metal material degradation, functional failure, defect expansion, etc. during unit operation, thereby reducing the number and duration of unplanned shutdowns of units, improving the reliability of equipment safe operation, and extending the service life of equipment.

[0003] The metal supervision and management systems of traditional gas-fired units mostly manage the equipment through ledgers, which input, count and analyze the metal supervision and inspection data, but the real-time performance is poor.

[0004] Gas turbine units include some typical components, such as the main steam pipe, reheat steam pipe, steam guide pipe, etc. Since the working medium of these typical pipeline components is high-temperature steam, the pipelines will undergo significant deformation and displacement. Currently, it is difficult to meet the requirements for further intelligent application construction through manual regular inspections. Summary of the invention

[0005] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a metal supervision and analysis method for typical components of a gas unit, which can facilitate the digital transformation and upgrading of traditional metal supervision and inspection services of gas units, reduce the dependence of metal supervision on manpower, and improve the real-time nature of information collection.

[0006] The specific technical solution adopted by the present invention is:

[0007] The metal supervision analysis method for typical gas unit components includes the following steps:

[0008] S1. Deploy sensors on typical components of gas turbines and collect dynamic information of target components in real time through sensors;

[0009] S2. The dynamic information of the target component is uploaded to the metal monitoring and analysis system and compared with the alarm threshold preset in the metal monitoring and analysis system;

[0010] S3. Establish a three-dimensional digital model of the target component in the metal monitoring and analysis system;

[0011] S4. Binding the three-dimensional digital model of the target component to the dynamic information of the target component and displaying it in the display module of the metal monitoring and analysis system;

[0012] S5. If the dynamic information of the target component does not exceed the alarm threshold range, the dynamic information of the target component is updated and displayed in real time at the corresponding position of the three-dimensional digital model of the target component; if the dynamic information of the target component exceeds the alarm threshold range, the supervision alarm program is triggered.

[0013] The typical component is a pipeline component loaded with high-temperature steam medium, and the sensor is deployed at the expansion joint of the pipeline component to monitor the deformation of the expansion joint.

[0014] The sensor is pulled between the pipes on both sides of the expansion joint. The sensor includes a sensing device and a first hook plate and a second hook plate symmetrically arranged on both sides with a J-shaped structure. The ends of the first hook plate and the second hook plate are provided with hook parts that are hooked with the pipes. The head ends of the first hook plate and the second hook plate are hinged to each other, and the hook parts of the first hook plate and the second hook plate are arranged on the same side. The sensing device is a tension sensor, which obtains the displacement information of the pipes on both sides by means of the relative swing of the first hook plate and the second hook plate to squeeze the tension sensor.

[0015] A raised extension frame is provided on the first hook plate, and a tensioning assembly is provided at the cantilevered end of the extension frame. The tensioning assembly includes a first connecting rod, a second connecting rod and a pulling spring. The pulling spring is fixed between the first connecting rod and the second connecting rod. The first connecting rod is hinged at the cantilevered end of the extension frame, and a tension sensor is connected in series between the second connecting rod and the pulling spring. The free end of the second connecting rod is provided with an arc-shaped third hook plate.

[0016] After the second hook plate and the third hook plate of the sensor are hooked to the pipe on one side of the expansion joint, pull the first hook plate so that the distance between the centers of the hook parts of the first hook plate and the second hook plate moves between the maximum spacing and the minimum spacing of the pipe deformation on both sides of the expansion joint to complete the calibration of the tension sensor. After the calibration is completed, pull the hook part of the first hook plate onto the pipe on the other side of the expansion joint.

[0017] The hook parts of the first hook plate and the second hook plate are detachably connected with the first hook plate and the second hook plate respectively by means of bolts.

[0018] The second connecting rod is a screw rod provided with a first locking nut and a second locking nut, the third hook plate is provided with a fixed edge, the fixed edge is provided with a through hole for the second connecting rod to pass through, and the second connecting rod forms an adjustable fixed connection with the fixed edge by means of the first locking nut and the second locking nut.

[0019] The beneficial effects of the present invention are:

[0020] The present invention deploys sensors on typical components of the gas unit, collects dynamic information of the target components in real time through the sensors, and combines the three-dimensional digital model of the target components set in the system, so that the three-dimensional digital model of the target components can display real-time information. At the same time, through the preset alarm threshold, the returned data is processed in real time, and the alarm is triggered in time after the alarm value is reached. Before the accident occurs, manual intervention is notified in time, thereby reducing the number and time of unplanned shutdowns of the unit, improving the reliability of safe operation of the equipment, and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the process of the present invention;

[0022] Figure 2 is a schematic diagram of the sensor;

[0023] Figure 3 This is a schematic diagram of the sensor working;

[0024] Figure 4 This is a schematic diagram of the sensor installed on the expansion joint;

[0025] In the accompanying drawings, 1. first hook plate, 2. second hook plate, 3. bent hook portion, 4. tension sensor, 5. extension frame, 6. first connecting rod, 7. second connecting rod, 8. pulling spring, 9. third hook plate, 10. first locking nut, 11. second locking nut, 12. fixed edge. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0027] Specific implementation examples Figure 1 As shown, the present invention is a metal monitoring and analysis method for typical components of a gas unit, comprising the following steps:

[0028] S1. Deploy sensors on typical components of gas turbines and collect dynamic information of target components in real time through sensors;

[0029] S2. The dynamic information of the target component is uploaded to the metal monitoring and analysis system and compared with the alarm threshold preset in the metal monitoring and analysis system;

[0030] S3. Establish a three-dimensional digital model of the target component in the metal monitoring and analysis system;

[0031] S4. Binding the three-dimensional digital model of the target component to the dynamic information of the target component and displaying it in the display module of the metal monitoring and analysis system;

[0032] S5. If the dynamic information of the target component does not exceed the alarm threshold range, the dynamic information of the target component is updated and displayed in real time at the corresponding position of the three-dimensional digital model of the target component; if the dynamic information of the target component exceeds the alarm threshold range, the supervision alarm program is triggered.

[0033] The supervisory alarm program of the present invention sends typical component information that triggers an alarm, the type of alarm sensor, and preset hazardous conditions that may be detected by the alarm sensor and disposal methods to the mobile terminal device of the maintenance personnel.

[0034] The present invention deploys sensors on typical components of the gas unit, collects dynamic information of the target components in real time through the sensors, and combines them with the three-dimensional digital model of the target components set in the system, so that the three-dimensional digital model of the target components can display real-time information. At the same time, through the preset alarm threshold, the returned data is processed in real time, and the alarm is triggered in time after the alarm value is reached. Before the accident occurs, manual intervention is notified in time, thereby reducing the number and time of unplanned shutdowns of the unit, improving the reliability of safe operation of the equipment, and extending the service life of the equipment.

[0035] Through the arrangement of the present invention, the supervision results can be accurately output, and the misdetection and missed detection of the monitored parts can be eliminated. When the manual output supervision plan is adopted, the misdetection and missed detection rate of metal supervision is about 1.5%. The research on the digital management of metal supervision builds a complete ledger of monitored equipment as the basis for the output of the metal supervision plan. The present invention can cooperate with offline manual inspections, and the inspection information is transmitted back after the offline manual inspection. When an item is missed, the system has an automatic identification reminder function, and sends the reminder information to the preset terminal device, which can reduce the misdetection and missed detection rate to 0%.

[0036] Furthermore, the typical component is a pipeline component loaded with high-temperature steam medium, and the sensor is deployed at the expansion joint of the pipeline component to monitor the deformation of the expansion joint. The sensor is pulled between the pipelines on both sides of the expansion joint, and the sensor includes a sensing device and a first hook plate 1 and a second hook plate 2 symmetrically arranged on both sides in a J-shaped structure. The ends of the first hook plate 1 and the second hook plate 2 are provided with a hook portion 3 hooked with the pipeline, the first hook plate 1 and the second hook plate 2 are hinged at their head ends, and the hook portions 3 of the first hook plate 1 and the second hook plate 2 are arranged on the same side. The sensing device is a tension sensor 4, which is used to obtain the displacement information of the pipelines on both sides by means of the relative swing of the first hook plate 1 and the second hook plate 2 to squeeze the tension sensor 4.

[0037] When the sensor of the present invention is in use, the first hook plate 1 and the second hook plate 2 are hooked and connected to the pipes on both sides of the expansion joint, so that when the distance between the first hook plate 1 and the second hook plate 2 increases or decreases due to thermal expansion and contraction of the pipes on both sides, the folding angle between the first hook plate 1 and the second hook plate 2 changes, thereby triggering the tension sensor 4, and then obtaining the displacement information of the pipes on both sides, providing data information for real-time display of the three-dimensional digital model of the target component in the system.

[0038] Furthermore, a raised extension frame 5 is provided on the first hook plate 1, and a tensioning assembly is provided at the cantilevered end of the extension frame 5. The tensioning assembly includes a first connecting rod 6, a second connecting rod 7 and a pulling spring 8. The pulling spring 8 is fixed between the first connecting rod 6 and the second connecting rod 7. The first connecting rod 6 is hinged at the cantilevered end of the extension frame 5. A tension sensor 4 is connected in series between the second connecting rod 7 and the pulling spring 8. The free end of the second connecting rod 7 is provided with an arc-shaped third hook plate 9.

[0039] The present invention is preferably installed as follows Figure 3 The angled state shown in the figure, and the hook portions 3 of the first hook plate 1 and the second hook plate 2 face the inside of the angle, thereby generating a margin in the opening direction, preventing the sensor from being directly straightened and damaged by the outward expansion of the pipeline expansion joint, applying force to the pulling spring 8 with the help of the third hook plate 9, and making the first hook plate 1 hold the pipeline on one side of the expansion joint with the help of the extension frame 5, while the third hook plate 9 is buckled on the outside of the hook portion 3 of the second hook plate 2, so that the second hook plate 2 and the third hook plate 9 hold the pipeline on the other side of the expansion joint together, thereby realizing the use of the pulling spring 8 to fix the sensor between the two sides of the pipeline, and making the angle between the first hook plate 1 and the second hook plate 2 change with the position of the two sides of the pipeline, and the set hook portion 3 forms a frictional rotational fit with the outer wall of the pipeline when the angle between the first hook plate 1 and the second hook plate 2 changes. At the same time, the hook portion 3 is set as an open hook-shaped structure, which can be damaged and loosened when the pulling force is too large, avoiding further damage to the pipeline.

[0040] Furthermore, after the second hook plate 2 and the third hook plate 9 of the sensor are hooked onto the pipe on one side of the expansion joint, the first hook plate 1 is pulled so that the distance between the centers of the hook portions 3 of the first hook plate 1 and the second hook plate 2 moves between the maximum spacing and the minimum spacing of the pipe deformation on both sides of the expansion joint, thereby completing the calibration of the tension sensor 4. After the calibration is completed, the hook portion 3 of the first hook plate 1 is pulled onto the pipe on the other side of the expansion joint.

[0041] Further, such as Figure 2As shown, the hook portions 3 of the first hook plate 1 and the second hook plate 2 are detachably connected to the first hook plate 1 and the second hook plate 2 by means of bolts, so that it is convenient to replace the hook portions 3 of different diameters to adapt to different types of pipes.

[0042] Furthermore, the second connecting rod 7 is a screw rod provided with a first locking nut 10 and a second locking nut 11, the third hook plate 9 is provided with a fixed edge 12, the fixed edge 12 is provided with a through hole for the second connecting rod 7 to pass through, and the second connecting rod 7 forms an adjustable fixed connection with the fixed edge 12 by means of the first locking nut 10 and the second locking nut 11.

[0043] With the help of the first locking nut 10 and the second locking nut 11, a clamping fixation is formed with the fixed edge 12, wherein the second locking nut 11 is located on the outside of the fixed edge 12. The first locking nut 10 can be unscrewed to the side away from the fixed edge 12, and the tension spring 8 is tightened by rotating the second locking nut 11 for easy installation, and then the second locking nut 11 is screwed to form a fixed clamp.

Claims

1. Metal supervision and analysis method for typical parts of gas turbines, characterized by: The following steps are included: S1. Deploy sensors on typical components of gas turbines and collect dynamic information of target components in real time through sensors; S2. The dynamic information of the target component is uploaded to the metal monitoring and analysis system and compared with the alarm threshold preset in the metal monitoring and analysis system; S3. Establish a three-dimensional digital model of the target component in the metal monitoring and analysis system; S4. Binding the three-dimensional digital model of the target component to the dynamic information of the target component and displaying it in the display module of the metal monitoring and analysis system; S5. If the dynamic information of the target component does not exceed the alarm threshold range, the dynamic information of the target component is updated and displayed in real time at the corresponding position of the three-dimensional digital model of the target component; if the dynamic information of the target component exceeds the alarm threshold range, the supervision alarm program is triggered.

2. The metal monitoring and analysis method for typical components of a gas unit according to claim 1 is characterized in that: The typical component is a pipeline component loaded with high-temperature steam medium, and the sensor is deployed at the expansion joint of the pipeline component to monitor the deformation of the expansion joint.

3. The metal monitoring and analysis method for typical components of a gas unit according to claim 2 is characterized in that: The sensor is pulled between the pipes on both sides of the expansion joint. The sensor comprises a sensing device and a first hook plate (1) and a second hook plate (2) symmetrically arranged on both sides and having a J-shaped structure. The ends of the first hook plate (1) and the second hook plate (2) are provided with a hook portion (3) for hooking with the pipe. The head ends of the first hook plate (1) and the second hook plate (2) are hinged to each other. The hook portions (3) of the first hook plate (1) and the second hook plate (2) are arranged on the same side. The sensing device is a tension sensor (4). The relative swing of the first hook plate (1) and the second hook plate (2) is used to squeeze the tension sensor (4) to obtain the displacement information of the pipes on both sides.

4. The metal monitoring and analysis method for typical components of a gas unit according to claim 3 is characterized by: The first hook plate (1) is provided with a raised extension frame (5), and the cantilevered end of the extension frame (5) is provided with a tensioning assembly, and the tensioning assembly comprises a first connecting rod (6), a second connecting rod (7) and a pulling spring (8), and the pulling spring (8) is fixed between the first connecting rod (6) and the second connecting rod (7), and the first connecting rod (6) is hinged at the cantilevered end of the extension frame (5), and a tension sensor (4) is connected in series between the second connecting rod (7) and the pulling spring (8), and the free end of the second connecting rod (7) is provided with an arc-shaped third hook plate (9).

5. The metal monitoring and analysis method for typical components of a gas unit according to claim 4 is characterized in that: After the second hook plate (2) and the third hook plate (9) of the sensor are hooked onto the pipe on one side of the expansion joint, the first hook plate (1) is pulled so that the distance between the centers of the first hook plate (1) and the hook portions (3) of the second hook plate (2) moves between the maximum spacing and the minimum spacing of the deformation of the pipes on both sides of the expansion joint, thereby completing the calibration of the tension sensor (4). After the calibration is completed, the hook portion (3) of the first hook plate (1) is pulled onto the pipe on the other side of the expansion joint.

6. The metal monitoring and analysis method for typical components of a gas unit according to claim 3 is characterized by: The hook portions (3) of the first hook plate (1) and the second hook plate (2) are respectively connected to the first hook plate (1) and the second hook plate (2) in a detachable manner by means of bolts.

7. The metal monitoring and analysis method for typical components of a gas unit according to claim 4 is characterized by: The second connecting rod (7) is a screw rod provided with a first locking nut (10) and a second locking nut (11); the third hook plate (9) is provided with a fixed edge (12); the fixed edge (12) is provided with a through hole for the second connecting rod (7) to pass through; the second connecting rod (7) forms an adjustable fixed connection with the fixed edge (12) by means of the first locking nut (10) and the second locking nut (11).

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