Steam turbine vibration detection device

Abstract

The utility model discloses a steam turbine vibration detection device, which comprises four support rods, a first electric telescopic rod is fixedly connected in each support rod, and the output end of each first electric telescopic rod is fixedly connected with a top plate; the bottom of the supporting rod is fixedly connected with the stabilizing sleeve, the bottom of the supporting rod is provided with a storage groove, the storage groove penetrates through the interior of the stabilizing sleeve, the inner top wall of the storage groove is fixedly connected with a second electric telescopic rod, and the output end of the second electric telescopic rod is fixedly connected with a sliding universal wheel; the supporting rod, the first electric telescopic rod, the top plate, the stabilizing sleeve, the storage groove, the second electric telescopic rod and the sliding universal wheels are used in cooperation, so that when a worker moves the device, carrying is changed into sliding movement, the working pressure of the worker can be relieved, meanwhile, the device can be heightened, and the working efficiency of the worker is improved. Therefore, the device can be conveniently adjusted to carry out vibration detection on turbines at different positions, and the convenience and practicability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration detection, in particular to a steam turbine vibration detection device. Background Technique

[0002] A steam turbine, also known as a steam turbine engine, is a rotary steam power device. High-temperature and high-pressure steam passes through a fixed nozzle to become an accelerated air flow and then jets onto the blades, causing the rotor equipped with the blade row to rotate and perform work externally. A steam turbine is the main equipment of a modern thermal power plant and is also used in the metallurgical industry, chemical industry, and ship power plants. After long-term operation, a steam turbine needs to be regularly vibration-detected to check whether there are problems, so that maintenance can be carried out in time and the service life of the steam turbine can be extended. Therefore, we need a steam turbine vibration detection device.

[0003] The defect of a steam turbine vibration detection device in the prior art is that the patent document CN215952748U discloses "The utility model discloses a measuring device for steam turbine vibration detection, including a fixed side plate and a fixed cross plate. One side of the fixed side plate is fixed with a sleeve, and the sleeve is threadedly connected with a support rod. A slider is slidably connected to the outer wall of the fixed cross plate. Through the detection mechanism provided by the utility model, by making the detection mechanism located at the top of the detection mechanism, rotating two handles, the adjusting screw rotates inside the support seat, so that the arc plate drives the limiting rod to slide inside the support seat, thereby clamping the vibration sensor through two arc plates. The cooperation of the arc plate, the adjusting screw and the limiting rod facilitates the disassembly and assembly of the vibration sensor; through the cooperation of the jacking plate, the circular sliding hole, the sliding rod and the hand-tightening screw, the height of the jacking plate is adjusted, so that one end of the hand-tightening screw is in close contact with the sliding rod. Just start the cylinder, and the vibration sensor can be in contact with the steam turbine for detection, thereby realizing rapid vibration measurement."

[0004] However, although the above device can achieve the work of detecting the vibration of the steam turbine during use, the above device is relatively heavy, and only relies on two relatively narrow support rods to move and support during work. Therefore, it will be damaged due to dragging or carrying by the staff during the movement process. Dragging and carrying will not only affect the support work of the support rods, but also increase the work pressure of the staff. Therefore, there are still certain deficiencies in this device that need to be further improved. Content of the Utility Model

[0005] The purpose of the utility model is to provide a steam turbine vibration detection device to solve the problem of XX proposed in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions. A steam turbine vibration detection device includes a support rod. There are four support rods in total. A first electric telescopic rod is fixedly connected inside the support rod. The output end of the first electric telescopic rod is fixedly connected with a top plate.

[0007] A stabilizing sleeve. The bottom of the support rod is fixedly connected with a stabilizing sleeve. A placement groove is opened at the bottom of the support rod and penetrates through the inside of the stabilizing sleeve. The output end of the second electric telescopic rod fixedly connected to the inner top wall of the placement groove is fixedly connected with a sliding universal wheel.

[0008] As an alternative technical solution, a driving motor is fixedly connected inside the top plate. The output end of the driving motor is fixedly connected with a threaded rod.

[0009] As an alternative technical solution, a rotating sleeve is fixedly connected inside the top plate, and the other end of the threaded rod rotates inside the rotating sleeve.

[0010] As an alternative technical solution, a sliding groove is opened at the bottom of the top plate, and the threaded rod penetrates through the inside of the sliding groove.

[0011] As an alternative technical solution, a moving block is sleeved on the surface of the threaded rod. A connecting block is fixedly connected to the bottom of the moving block.

[0012] As an alternative technical solution, a sliding block is fixedly connected to the surface of the moving block, and the sliding block slides inside the sliding groove.

[0013] As an alternative technical solution, a third electric telescopic rod is fixedly connected inside the connecting block. The output end of the third electric telescopic rod is fixedly connected with a detection instrument.

[0014] As an alternative technical solution, an auxiliary block is fixedly connected inside the detection instrument. A vibration sensor is fixedly connected inside the detection instrument, and the vibration sensor penetrates through the inside of the auxiliary block.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The combined use of the support rod, the first electric telescopic rod, the top plate, the stabilizing sleeve, the placement groove, the second electric telescopic rod and the sliding universal wheel provided by the present utility model enables the device to be easily moved by the staff. When the staff moves the device, it changes from carrying to sliding, which can reduce the work pressure of the staff. At the same time, the device can be adjusted in height, which is convenient for adjusting the device to detect the vibration of steam turbines at different positions, increasing the convenience and practicality of the device.

[0017] 2. The combination use of the top plate, drive motor, threaded rod, rotating sleeve, sliding groove and moving block provided by the present utility model enables the device to protect the drive motor, thereby preventing the drive motor from being exposed outside, protecting the integrity of the screw drive device, reducing the accumulation of external dust or bumps, prolonging the service life of the device, and increasing the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a front sectional structural schematic diagram of the present utility model;

[0020] Figure 3 is a side sectional structural schematic diagram of the present utility model;

[0021] Figure 4 is a structural schematic diagram of the sliding block of the present utility model;

[0022] Figure 5 is a structural schematic diagram of the detection instrument of the present utility model.

[0023] In the figure: 1, support rod; 2, first electric telescopic rod; 3, top plate; 4, stable sleeve; 5, placement groove; 6, second electric telescopic rod; 7, sliding universal wheel; 8, drive motor; 9, threaded rod; 10, rotating sleeve; 11, sliding groove; 12, moving block; 13, connecting block; 14, sliding block; 15, third electric telescopic rod; 16, detection instrument; 17, auxiliary block; 18, vibration sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Embodiment 1:

[0025] Please refer to Figure 1 , Figure 2 and Figure 3 , a steam turbine vibration detection device, including a support rod 1, the support rod 1 supports the device to work, a total of four support rods 1 are provided, a first electric telescopic rod 2 is fixedly connected inside the support rod 1, the first electric telescopic rod 2 is a existing technology, so as to provide power for the lifting of the top plate 3, the output end of the first electric telescopic rod 2 is fixedly connected with a top plate 3, and the top plate 3 is used to install the detection device and individual drive devices;

[0026] Stabilizing sleeve 4, a stabilizing sleeve 4 is fixedly connected to the bottom of the support rod 1. The stabilizing sleeve 4 is made of rubber material, which can increase the stability of the bottom of the support rod 1. A storage groove 5 is formed in the bottom of the support rod 1, and the storage groove 5 penetrates through the inside of the stabilizing sleeve 4. The storage groove 5 facilitates the installation of the second electric telescopic rod 6, and at the same time facilitates the sliding universal wheel 7 to be stored inside when not in use. The inner top wall of the storage groove 5 is fixedly connected to the output end of the second electric telescopic rod 6, and the output end of the second electric telescopic rod 6 is fixedly connected to the sliding universal wheel 7. The sliding universal wheel 7, as an existing technology, can move the support rod 1.

[0027] As an alternative technical solution, a driving motor 8 is fixedly connected to the inside of the top plate 3. The driving motor 8, as an existing technology, can provide power to drive the rotation of the threaded rod 9. The output end of the driving motor 8 is fixedly connected to the threaded rod 9. The threaded rod 9 can drive the moving block 12 sleeved on its surface to move by borrowing the force of the driving motor 8.

[0028] Embodiment 2:

[0029] Please refer to Figure 1 、 Figure 4 and Figure 5 , including a rotating sleeve 10 fixedly connected to the inside of the top plate 3, and the other end of the threaded rod 9 rotates inside the rotating sleeve 10. The rotating sleeve 10 facilitates the rotation work of the threaded rod 9 inside.

[0030] As an alternative technical solution, a sliding groove 11 is formed in the bottom of the top plate 3, and the threaded rod 9 penetrates through the inside of the sliding groove 11. The sliding groove 11 facilitates the sliding movement of the moving block 12 inside.

[0031] As an alternative technical solution, a moving block 12 is sleeved on the surface of the threaded rod 9. The moving block 12 can be sleeved on the threaded rod 9, so that it can move on the surface of the threaded rod 9. A connecting block 13 is fixedly connected to the bottom of the moving block 12. The connecting block 13 facilitates the installation of the third electric telescopic rod 15 inside.

[0032] As an alternative technical solution, a sliding block 14 is fixedly connected to the surface of the moving block 12, and the sliding block 14 slides inside the sliding groove 11. The sliding block 14 can increase the stable movement of the moving block 12 inside the sliding groove 11.

[0033] As an alternative technical solution, a third electric telescopic rod 15 is fixedly connected to the inside of the connecting block 13. The third electric telescopic rod 15, as an existing technology, can provide power for the lifting of the detection instrument 16. The output end of the third electric telescopic rod 15 is fixedly connected to the detection instrument 16. The detection instrument 16 facilitates the installation of the vibration sensor 18.

[0034] As an alternative technical solution, an auxiliary block 17 is fixedly connected inside the detection instrument 16. The auxiliary block 17 is used to increase the stable installation of the vibration sensor 18 inside the detection instrument 16. The vibration sensor 18 is fixedly connected inside the detection instrument 16, and the vibration sensor 18 penetrates through the inside of the auxiliary block 17. The vibration sensor 18, as an existing technology, can perform vibration monitoring work.

[0035] Working principle: When using this device to perform steam turbine vibration detection work, first turn on the second electric telescopic rod 6, so that the second electric telescopic rod 6 pushes out the sliding universal wheel 7, so as to facilitate the staff to move the device to the required position. Then, use the second electric telescopic rod 6 again to retract the sliding universal wheel 7 into the storage groove 5, so that the support rod 1 contacts the ground. Then turn on the drive motor 8, which drives the threaded rod 9 to rotate, so that the moving block 12 sleeved on the surface of the threaded rod 9 moves. Then turn on the third electric telescopic rod 15, so that the detection instrument 16 moves downward, so that the detection instrument 16 can be aligned with the steam turbine. Then turn on the vibration sensor 18 to perform vibration detection work on the steam turbine.

[0036] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A steam turbine vibration detection device, comprising a support rod (1), characterized in that: A total of four support rods (1) are provided, and a first electric telescopic rod (2) is fixedly connected inside the support rod (1), and an output end of the first electric telescopic rod (2) is fixedly connected to a top plate (3); The stabilizing sleeve (4) is fixedly connected to the bottom of the support rod (1), a storage groove (5) is provided at the bottom of the support rod (1), and the storage groove (5) runs through the interior of the stabilizing sleeve (4), the inner top wall of the storage groove (5) is fixedly connected to the output end of the second electric telescopic rod (6) is fixedly connected to the sliding universal wheel (7).

2. A steam turbine vibration detection device according to claim 1, characterized in that: A driving motor (8) is fixedly connected inside the top plate (3), and a threaded rod (9) is fixedly connected to the output end of the driving motor (8).

3. A steam turbine vibration detection device according to claim 1, characterized in that: The interior of the top plate (3) is fixedly connected with a rotating sleeve (10), and the other end of the threaded rod (9) rotates inside the rotating sleeve (10).

4. A steam turbine vibration detection device according to claim 1, characterized in that: A sliding groove (11) is provided at the bottom of the top plate (3), and the threaded rod (9) passes through the interior of the sliding groove (11).

5. A steam turbine vibration detection device according to claim 2, characterized in that: A moving block (12) is sleeved on the surface of the threaded rod (9), and a connecting block (13) is fixedly connected to the bottom of the moving block (12).

6. A steam turbine vibration detection device according to claim 5, characterized in that: A sliding block (14) is fixedly connected to the surface of the moving block (12), and the sliding block (14) slides inside the sliding groove (11).

7. A steam turbine vibration detection device according to claim 5, characterized in that: A third electric telescopic rod (15) is fixedly connected inside the connection block (13), and a detection device (16) is fixedly connected to the output end of the third electric telescopic rod (15).

8. A steam turbine vibration detection device according to claim 7, characterized in that: An auxiliary block (17) is fixedly connected inside the detection device (16), a vibration sensor (18) is fixedly connected inside the detection device (16), and the vibration sensor (18) runs through the inside of the auxiliary block (17).

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