Gas turbine operation vibration measuring device
By combining adsorption and magnetic attraction mechanisms, the design solves the problems of low convenience and accuracy of gas turbine vibration measurement devices, and achieves stable fixation and accurate detection of sensors on the gas turbine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 四川华电内江燃气发电有限公司
- Filing Date
- 2025-07-17
- Publication Date
- 2026-05-08
AI Technical Summary
Existing vibration measurement devices for gas turbine operation are not easy to operate, have low vibration measurement accuracy, and the traditional clamping structure is prone to loosening, resulting in data distortion.
The sensor design combines an adsorption mechanism and a magnetic attraction mechanism. The sensor is firmly attached to the gas turbine detection surface by using a vacuum pump to draw air for adsorption and a magnetic attraction rod for fixation. Stable installation and accurate detection are achieved through the cooperation of a bidirectional screw and a compression plate.
This improves the ease of operation and accuracy of the gas turbine vibration measurement device, ensures that the sensor is stably fixed in the vibration environment, avoids loosening, and enhances the adaptability and accuracy of the detection.
Smart Images
Figure CN224216160U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas turbine vibration measurement technology, specifically a gas turbine operation vibration measurement device. Background Technology
[0002] A gas turbine is a thermal engine that uses the combustion of gas to generate high-temperature, high-pressure gas, which drives a turbine to rotate and thus outputs mechanical energy. By detecting the vibration spectrum of the gas turbine, its condition can be analyzed and identified, thereby enabling early maintenance of the gas turbine.
[0003] Currently, vibration monitoring of high-speed rotating equipment such as gas turbines mainly relies on split-type vibration meters, which are usually measured by hand or mechanical clamping. Hand measurement is prone to data distortion due to shaking caused by manual operation, while traditional clamping structures require auxiliary tools such as bolts and clamps, which are time-consuming to install and have poor structural adaptability. They are also prone to loosening due to vibration during long-term operation. As a result, the existing vibration measurement devices for gas turbine operation have low ease of operation and low vibration measurement accuracy. Therefore, a vibration measurement device for gas turbine operation was designed. Utility Model Content
[0004] The purpose of this invention is to provide a vibration measurement device for gas turbine operation, so as to solve the problems of low operation convenience and low vibration measurement accuracy of existing gas turbine vibration measurement devices mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a gas turbine operation vibration measuring device: comprising a detection host, a data cable fixedly connected to the surface of the detection host, a detection sensor fixedly connected to the surface of the data cable, an adsorption mechanism disposed on the surface of the detection sensor, the adsorption mechanism comprising a movable rod, the movable rod fixedly connected to the surface of the detection sensor, a first guide rod slidably connected to the surface of the movable rod, a fixing frame fixedly connected to the surface of the first guide rod, a vacuum pump fixedly connected to the surface of the fixing frame, a power supply disposed on the surface of the vacuum pump, a suction pipe fixedly connected to the output end of the vacuum pump, a connecting pipe fixedly connected to the surface of the suction pipe, an adsorption pipe fixedly connected to the surface of the connecting pipe, the connecting pipe fixedly connected to the surface of the fixing frame, and a second guide rod slidably connected to the surface of the fixing frame. A pressing plate is fixedly connected to the surface of the guide rod. A bidirectional screw is rotatably connected to the surface of the fixing frame. A square nut is threaded onto the surface of the bidirectional screw. An adjusting rod is rotatably connected to the surface of the square nut. The end of the adjusting rod away from the square nut is rotatably connected to the pressing plate. A limit knob is fixedly connected to the top of the bidirectional screw. A limit rod is slidably connected to the top of the fixing frame. A first spring is fixedly connected to the surface of the limit rod. One end of the first spring is fixedly connected to the surface of the fixing frame. A magnetic attraction mechanism is provided on the side of the detection sensor. The magnetic attraction mechanism includes a guide plate. The guide plate is fixedly connected to the side of the detection host. A second spring is fixedly connected to the surface of the guide plate. A magnetic attraction rod is fixedly connected to the surface of the second spring. A third guide rod is fixedly connected to the surface of the magnetic attraction rod. The third guide rod is slidably connected to the surface of the guide plate.
[0006] Preferably, the power supply is provided by a vacuum pump, which draws air from the adsorption tubes for adsorption through a suction pipe and a connecting pipe. Multiple sets of adsorption tubes are provided on the connecting pipes and are evenly distributed.
[0007] Preferably, a guide hole is provided on the surface of the movable rod, and the movable rod slides on the surface of the first guide rod through the guide hole. The movable rod changes the distance between the detection sensor and the fixed frame by sliding.
[0008] Preferably, the extrusion plate is in the shape of a "well" and slides horizontally on the surface of the fixing frame via a second guide rod. The extrusion plate is in contact with one side of the detection sensor.
[0009] Preferably, the bidirectional screw drives the square nut to move horizontally up and down on the fixed frame by rotation. There are two sets of square nuts, and the two sets of square nuts move in opposite directions. During the lifting and lowering process, the square nut pushes the extrusion plate to move horizontally through the adjusting rod.
[0010] Preferably, the bidirectional screw is driven to rotate by a limiting knob, and multiple sets of limiting holes are formed on the surface of the limiting knob. The elastic force of the first spring acts on the limiting rod, and the limiting rod is inserted into the limiting hole of the limiting knob.
[0011] Preferably, the magnetic suction rod slides horizontally on one side of the detection host via the third guide rod. There are two sets of magnetic suction rods, which are located on both sides of the detection sensor. The elastic force of the second spring acts on the magnetic suction rod.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This vibration measuring device uses an adsorption mechanism in conjunction with a magnetic attraction mechanism. The magnetic attraction mechanism is used to temporarily restrict the detection sensor to the detection area of the gas turbine, while the adsorption mechanism is used to firmly attach the detection surface of the detection sensor to the detection surface of the gas turbine. This allows the detection sensor to be installed quickly and conveniently on the detection surface of the gas turbine. Furthermore, the adsorption mechanism combined with the magnetic attraction mechanism can firmly limit the detection sensor to the detection surface of the gas turbine, preventing the detection sensor from becoming loose and ensuring the accuracy of the detection sensor.
[0014] 2. This vibration measuring device drives a bidirectional screw to rotate via a limit knob. The bidirectional screw, through rotation, drives a square nut to rise and fall on a fixed frame. During the rising and falling process, the square nut drives a pressing plate via an adjusting rod to firmly press the detection sensor onto the detection surface of the gas turbine. Furthermore, the first spring, through its elastic force, causes the limit rod to insert into the limit hole of the limit knob, ensuring the stability of the pressing plate's position. Under the pressure of the pressing plate, the detection sensor slides onto the detection surface of the gas turbine via a movable rod on the first guide rod until the detection end of the detection sensor is completely attached to the detection surface of the gas turbine. By adjusting the contact position of the detection sensor, the adaptability of the adsorption mechanism is greatly improved. Attached Figure Description
[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;
[0016] Figure 2 This is a frontal three-dimensional schematic diagram of the detection sensor structure of this utility model;
[0017] Figure 3 This is a side view schematic diagram of the detection sensor structure of this utility model;
[0018] Figure 4 This is a side perspective three-dimensional schematic diagram of the adsorption mechanism of this utility model;
[0019] Figure 5 This utility model Figure 2 A magnified structural diagram of point A in the middle.
[0020] In the diagram: 1. Detection host; 11. Data cable; 12. Detection sensor; 2. Vacuum pump; 21. Power supply; 22. Evacuation pipe; 23. Connecting pipe; 24. Adsorption pipe; 25. First guide rod; 26. Movable rod; 27. Fixing frame; 3. Second guide rod; 31. Extrusion plate; 32. Bidirectional screw; 33. Square nut; 34. Adjusting rod; 35. Limit knob; 36. First spring; 37. Limit rod; 4. Guide plate; 41. Second spring; 42. Magnetic suction rod; 43. Third guide rod. Detailed Implementation
[0021] Please see Figure 1-5 One embodiment provided by this utility model:
[0022] A vibration measurement device for gas turbine operation includes a detection host 1. A data cable 11 is fixedly connected to the surface of the detection host 1. A detection sensor 12 is fixedly connected to the surface of the data cable 11. The detection sensor 12 contacts the detection area of the gas turbine. The detection sensor 12 detects the vibration of the gas turbine and transmits the output to the detection host 1 through the data cable 11, thereby realizing the vibration measurement of the gas turbine. An adsorption mechanism is provided on the surface of the detection sensor 12. The adsorption mechanism includes a movable rod 26, which is fixedly connected to the surface of the detection sensor 12. A first guide rod 25 is slidably connected to the surface of the movable rod 26. A fixing frame 27 is fixedly connected to the surface of the first guide rod 25. A vacuum pump 2 is fixedly connected to the surface of the fixed frame 27. A power supply 21 is provided on the surface of the vacuum pump 2. An air extraction pipe 22 is fixedly connected to the output end of the vacuum pump 2. A connecting pipe 23 is fixedly connected to the surface of the air extraction pipe 22. An adsorption pipe 24 is fixedly connected to the surface of the connecting pipe 23. The connecting pipe 23 is fixedly connected to the surface of the fixed frame 27. A second guide rod 3 is slidably connected to the surface of the fixed frame 27. A pressing plate 31 is fixedly connected to the surface of the second guide rod 3. A bidirectional screw 32 is rotatably connected to the surface of the fixed frame 27. A square nut 33 is threadedly connected to the surface of the bidirectional screw 32. An adjusting rod 34 is rotatably connected to the surface of the square nut 33. One end of rod 34 away from square nut 33 is rotatably connected to extrusion plate 31. A limit knob 35 is fixedly connected to the top of bidirectional screw 32. A limit rod 37 is slidably connected to the top of mounting bracket 27. A first spring 36 is fixedly connected to the surface of limit rod 37, with one end of the first spring 36 fixedly connected to the surface of mounting bracket 27. A magnetic attraction mechanism is provided on the side of detection sensor 12. The magnetic attraction mechanism includes a guide plate 4, which is fixedly connected to the side of detection host 1. A second spring 41 is fixedly connected to the surface of guide plate 4. A magnetic rod 42 is fixedly connected to the surface of the second spring 41. A third guide rod 43 is fixedly connected to the surface of magnetic rod 42. 43 is slidably connected to the surface of the guide plate 4. This adsorption mechanism works in conjunction with the magnetic attraction mechanism. The magnetic attraction mechanism is used to temporarily restrict the detection sensor 12 to the detection area of the gas turbine, while the adsorption mechanism is used to firmly attach the detection surface of the detection sensor 12 to the detection surface of the gas turbine, thereby ensuring the stability of the detection sensor 12 during the detection process. The use of this adsorption mechanism in conjunction with the magnetic attraction mechanism greatly improves the ease of installation of the detection sensor 12. Furthermore, after the adsorption mechanism is completed, it can adjust the distance between the detection sensor 12 and the fixing frame 27, thereby ensuring that the detection sensor 12 is firmly attached to the surface of the detection surface, thus ensuring the detection accuracy of the detection sensor 12.
[0023] Furthermore, the power supply 21 supplies power to the vacuum pump 2. The vacuum pump 2 uses the suction pipe 22 and the connecting pipe 23 to draw air from the adsorption tube 24 for adsorption. Multiple sets of adsorption tubes 24 are provided on the connecting pipe 23 and are evenly distributed. An adsorption pad is provided at the adsorption end of the adsorption tube 24 to ensure the sealing of the adsorption tube 24 after adsorption. The connecting pipe 23 is fixedly connected to the surface of the fixing frame 27. At this time, the adsorption mechanism completes the fixing of the fixing frame 27 on the detection surface.
[0024] Furthermore, a guide hole is provided on the surface of the movable rod 26. The movable rod 26 slides on the surface of the first guide rod 25 through the guide hole. The movable rod 26 changes the distance between the detection sensor 12 and the fixed frame 27 by sliding. By adjusting the position of the detection sensor 12, the detection sensor 12 can be firmly attached to the detection surface of the gas turbine, thereby ensuring the accuracy of the detection. The adjustment of the position of the detection sensor 12 greatly improves the adaptability of the adsorption mechanism.
[0025] Furthermore, the extrusion plate 31 is in the shape of a "well" and slides horizontally on the surface of the fixing frame 27 via the second guide rod 3. The extrusion plate 31 is in contact with one side of the detection sensor 12 and restricts the position of the detection sensor 12 on the gas turbine detection surface. By changing the position of the extrusion plate 31, the detection sensor 12 can be limited.
[0026] Furthermore, the bidirectional screw 32 drives the square nut 33 to move horizontally up and down on the fixed frame 27 by rotation. Under the limit of the adjusting rod 34, the adjusting rod 34 cannot rotate. Therefore, the bidirectional screw 32 ensures the stability of the square nut 33 moving horizontally up and down on the fixed frame 27 during rotation. There are two sets of square nuts 33, and the two sets of square nuts 33 move in opposite directions. During the lifting and lowering process, the square nut 33 pushes the extrusion plate 31 to move horizontally through the adjusting rod 34. One end of the adjusting rod 34 moves with the square nut 33, and the adjusting rod 34 changes the position of the extrusion plate 31 by rotation.
[0027] Furthermore, the bidirectional screw 32 is driven to rotate by the limiting knob 35. During the rotation of the bidirectional screw 32, the limiting knob 35 rotates synchronously. Multiple sets of limiting holes are opened on the surface of the limiting knob 35. The elastic force of the first spring 36 acts on the limiting rod 37. The limiting rod 37 is inserted into the limiting hole of the limiting knob 35. The limiting rod 37 prevents the bidirectional screw 32 and the limiting knob 35 from continuing to rotate, and prevents the extrusion plate 31 from being displaced during vibration, thereby ensuring the stability of the detection process.
[0028] Furthermore, the magnetic suction rod 42 slides horizontally on one side of the detection host 1 via the third guide rod 43. Two sets of magnetic suction rods 42 are provided and are located on both sides of the detection sensor 12. The elastic force of the second spring 41 acts on the magnetic suction rod 42. The detection surface of the gas turbine is usually made of iron. The magnetic suction rod 42 can be magnetically attracted to the detection surface to support the position of the detection sensor 12. At this time, the adsorption mechanism is activated to fix the detection sensor 12 on the gas turbine detection surface.
[0029] Working principle: When the detection sensor 12 is attached to the detection surface of the gas turbine, the magnetic rod 42 will magnetically attract the detection sensor 12 to the detection surface of the gas turbine, providing temporary support. The magnetic rod 42, through the elastic force of the second spring 41, pulls the guide plate 4, causing the detection sensor 12 to adhere to the detection surface of the gas turbine. At this time, the power supply 21 supplies power to the vacuum pump 2. The vacuum pump 2, through the suction pipe 22 and the connecting pipe 23, causes the adsorption pipe 24 to draw air and adsorb it onto one side of the detection surface of the gas turbine. The suction pipe 22, through the connecting pipe 23, supports the fixing frame 27, thus fixing the fixing frame 27. Then, the bidirectional screw 32 is driven to rotate by the limit knob 35. 2. The square nut 33 is driven to rise and fall on the fixed frame 27 by rotation. During the rising and falling process, the square nut 33 drives the extrusion plate 31 through the adjusting rod 34 to firmly press the detection sensor 12 onto the detection surface of the gas turbine. The first spring 36 causes the limiting rod 37 to be inserted into the limiting hole of the limiting knob 35 through elasticity, ensuring the stability of the position of the extrusion plate 31. Under the extrusion of the extrusion plate 31, the detection sensor 12 slides onto the detection surface of the gas turbine through the movable rod 26 on the first guide rod 25 until the detection end of the detection sensor 12 is completely attached to the detection surface of the gas turbine. This ensures the convenience of fixing the detection sensor 12 while ensuring the accuracy of the detection.
Claims
1. A vibration measuring device for gas turbine operation, characterized in that: The system includes a detection host, a data cable fixedly connected to its surface, a detection sensor fixedly connected to the data cable, an adsorption mechanism on the surface of the detection sensor, and a movable rod fixedly connected to the surface of the detection sensor. A first guide rod is slidably connected to the surface of the movable rod, a mounting frame is fixedly connected to the surface of the first guide rod, a vacuum pump is fixedly connected to the surface of the mounting frame, a power supply is provided on the surface of the vacuum pump, a suction pipe is fixedly connected to the output end of the vacuum pump, a connecting pipe is fixedly connected to the surface of the suction pipe, an adsorption tube is fixedly connected to the surface of the connecting pipe, the connecting pipe is fixedly connected to the surface of the mounting frame, a second guide rod is slidably connected to the surface of the mounting frame, and a pressing plate is fixedly connected to the surface of the second guide rod. A bidirectional screw is rotatably connected to the surface of the fixed frame. A square nut is threaded onto the surface of the bidirectional screw. An adjusting rod is rotatably connected to the surface of the square nut. The end of the adjusting rod away from the square nut is rotatably connected to a pressing plate. A limit knob is fixedly connected to the top of the bidirectional screw. A limit rod is slidably connected to the top of the fixed frame. A first spring is fixedly connected to the surface of the limit rod. One end of the first spring is fixedly connected to the surface of the fixed frame. A magnetic attraction mechanism is provided on the side of the detection sensor. The magnetic attraction mechanism includes a guide plate. The guide plate is fixedly connected to the side of the detection host. A second spring is fixedly connected to the surface of the guide plate. A magnetic rod is fixedly connected to the surface of the second spring. A third guide rod is fixedly connected to the surface of the magnetic rod. The third guide rod is slidably connected to the surface of the guide plate.
2. The vibration measuring device for gas turbine operation according to claim 1, characterized in that: The power supply is provided by a vacuum pump. The vacuum pump draws air from the adsorption tubes for adsorption through a suction pipe and a connecting pipe. Multiple sets of adsorption tubes are arranged on the connecting pipes and are evenly distributed.
3. The vibration measuring device for gas turbine operation according to claim 1, characterized in that: A guide hole is provided on the surface of the movable rod. The movable rod slides through the guide hole on the surface of the first guide rod, and the movable rod changes the distance between the detection sensor and the fixed frame by sliding.
4. The gas turbine operation vibration measuring device according to claim 1, characterized in that: The extrusion plate is in the shape of a "well" and slides horizontally on the surface of the fixed frame via a second guide rod. The extrusion plate is in contact with one side of the detection sensor.
5. A vibration measuring device for gas turbine operation according to claim 4, characterized in that: The bidirectional screw drives the square nut to move horizontally up and down on the fixed frame by rotation. There are two sets of square nuts, and the two sets of square nuts move in opposite directions. During the lifting and lowering process, the square nut pushes the extrusion plate to move horizontally through the adjusting rod.
6. The vibration measuring device for gas turbine operation according to claim 1, characterized in that: The bidirectional screw is driven to rotate by a limiting knob. Multiple limiting holes are formed on the surface of the limiting knob. The elastic force of the first spring acts on the limiting rod, and the limiting rod is inserted into the limiting hole of the limiting knob.
7. The gas turbine operation vibration measuring device according to claim 1, characterized in that: The magnetic suction rod slides horizontally on one side of the detection host via the third guide rod. There are two sets of magnetic suction rods, which are located on both sides of the detection sensor. The elastic force of the second spring acts on the magnetic suction rod.