Device for quick measurement of floating quantity of water turbine main shaft seal

Abstract

The utility model provides a device for quick measurement of water turbine main shaft sealing floating quantity, its technical scheme is: including hydraulic magnetic base, one end of the hydraulic magnetic base's side wall with universal adjusting lever is rotatoryly connected, the other end of universal adjusting lever with the table body fixed connection of dial gauge, the measuring end of dial gauge and the top of magnetic force column abuts, the bottom of magnetic force column and the top magneticity of floating ring is connected, hydraulic magnetic base is equipped with least one. The utility model has the advantages of: (1) simplifying installation process, adapting narrow and damp environment, (2) reducing manpower investment, improving measurement efficiency, (3) reducing safety risk, improving operation environment, (4) guaranteeing measurement accuracy, reducing equipment damage probability.

Description

Technical Field

[0001] This utility model belongs to the field of water turbine testing and maintenance technology, and in particular relates to a rapid measuring device for the floating amount of working seals of water turbines. Background Technology

[0002] During turbine unit overhaul, performance testing of the main shaft sealing system is a crucial step. Measuring the overall float of the main shaft sealing floating ring under different water pressures directly impacts sealing effectiveness evaluation and troubleshooting. Current measurement methods require setting up dial indicators in four directions (+X, -X, +Y, -Y) within the main shaft sealing water tank in the turbine chamber. The specific procedure involves installing long screws in pre-set screw holes in the corresponding directions, using the screws to support and fix the dial indicators, manually monitoring and recording the dial indicator readings in real time, and finally analyzing the overall float characteristics of the floating ring using the four-directional data.

[0003] However, this measurement method has significant drawbacks in practical operation, specifically: (1) Limited operating environment and low efficiency The internal space of the spindle sealing water tank is small (usually only 1.5-2m in diameter) and surrounded by pipes, valves and other equipment, which restricts the range of personnel movement. As a result, operations such as setting up the dial indicator and installing the screw require repeated adjustments of body position. Preparation work in one direction takes more than 30 minutes, and the overall measurement process is lengthy.

[0004] (2) High labor costs and great difficulty in coordination Due to space constraints and operational complexity, a single measurement requires the coordinated efforts of 5-6 people. Two people are responsible for installing the screw and gauge inside the water tank, two people are responsible for passing the tools outside, and one to two people are responsible for reading, recording, and communication coordination. The manpower investment is large and delays are prone to occur in the process.

[0005] (3) Significant safety hazards and high operational risks The water tank is poorly lit, the floor is slippery, and communication with the outside world relies on shouting, which can easily lead to accidents such as collisions and falls due to errors in the transmission of operating instructions. In addition, metal parts are prone to slipping in the humid environment, and people are prone to muscle strain from bending over for long periods of time, making it difficult to ensure safety.

[0006] The aforementioned problems result in existing measurement methods being not only inefficient and lacking in data reliability, but also posing significant safety risks. They are unable to meet the requirements of modern turbine maintenance for accuracy, safety, and economy. There is an urgent need for a floating quantity measurement device that can adapt to confined and humid environments, simplify operating procedures, and reduce manpower input. Summary of the Invention

[0007] To address the problems in the prior art, this utility model provides a device for rapid measurement of the floating amount of the turbine main shaft seal. The technical solution includes a hydraulic magnetic base, the side wall of which is rotatably connected to one end of a universal adjusting rod, the other end of which is fixedly connected to the body of a dial indicator, the measuring end of the dial indicator abutting against the top of a magnetic column, and the bottom of the magnetic column being magnetically connected to the top of a floating ring; at least one hydraulic magnetic base is provided.

[0008] In a preferred embodiment, the top of the hydraulic magnetic base is further provided with a camera assembly, which includes a magnetic lamp holder, a universal lamp post, and a camera. The magnetic base of the magnetic lamp holder is magnetically connected to the top of the hydraulic magnetic base, the top of the magnetic lamp holder is fixedly connected to one end of the universal lamp post, and the other end of the universal lamp post is fixedly connected to the camera.

[0009] In a more preferred embodiment, the camera's shooting direction is aligned with the dial of the dial indicator.

[0010] In a more preferred embodiment, a light is provided on the top of the camera, and the direction of illumination of the light is consistent with the shooting direction of the camera.

[0011] In a preferred embodiment, the universal adjusting rod includes at least two rotating joints, each of which is provided with a locking nut. The locking nut is a wing nut with anti-slip teeth. When tightened, the rotating joint is fixed by frictional resistance, and when loosened, the rotating joint is allowed to adjust freely.

[0012] In a preferred embodiment, the magnetic base of the hydraulic magnetic seat is magnetically connected to the top of the main shaft sealing water tank.

[0013] As a preferred embodiment, four sets of hydraulic magnetic bases are provided, located on top of the main shaft sealing water tanks in the four directions of +X, -X, +Y and -Y of the turbine.

[0014] The beneficial effects of this utility model are: (1) The hydraulic magnetic seat replaces the traditional long screw fixing method. It uses strong magnetism to be attracted to the top of the main shaft sealing water tank, which can be quickly fixed in rusty and humid environments, avoiding installation difficulties caused by thread corrosion. The multi-joint design of the universal adjustment rod, combined with the anti-slip wing nut, can flexibly adjust the measuring angle and height of the dial indicator in the narrow space of the water tank, without the need for personnel to repeatedly bend over or adjust their body position, and is suitable for the operating environment of complex equipment layout. (2) The four sets of hydraulic magnetic bases correspond to the four directions of +X, -X, +Y and -Y respectively. They can be set up and measured simultaneously, replacing the traditional collaborative operation mode of 5-6 people. Only 2 people are needed to complete the installation and monitoring, reducing labor costs. The camera component collects dial gauge readings in real time through the camera. Combined with the lighting, it solves the problem of insufficient lighting in the water tank. There is no need for personnel to continuously monitor on site. Data recording is changed from manual handwriting to electronic archiving, reducing recording errors. (3) Reduce the frequency of personnel entering the narrow water tank and avoid the risk of falling or bumping due to wet and slippery ground or equipment collision; at the same time, remote data viewing solves the problem of poor on-site communication and the transmission of operation instructions is more accurate; the stable adsorption of the hydraulic magnetic seat and the locking structure of the universal adjustment rod reduce the probability of the measuring device slipping or falling off in the humid environment and avoid safety accidents caused by equipment falling. (4) Using a magnetic column as an extension of the floating ring also reduces the time the dial indicator is immersed in water, thus mitigating the problem of abnormal readings caused by long-term moisture in the dial indicator. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram illustrating the use of this utility model.

[0017] In the diagram: 1. Hydraulic magnetic base; 2. Camera assembly; 201. Magnetic lamp holder; 202. Universal lamp post; 203. Camera; 204. Lighting lamp; 3. Universal adjusting rod; 4. Locking nut; 5. Dial indicator; 6. Magnetic column; 7. Main spindle sealing water tank; 8. Floating ring. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Example like Figure 1-2 The device shown is for rapid measurement of the floating amount of the turbine main shaft seal. It includes a hydraulic magnetic base 1, the side wall of which is rotatably connected to one end of a universal adjusting rod 3, the other end of which is fixedly connected to the body of a dial indicator 5, the measuring end of which abuts against the top of a magnetic column 6, and the bottom of which is magnetically connected to the top of a floating ring 8. At least one hydraulic magnetic base 1 is provided.

[0020] Furthermore, the top of the hydraulic magnetic base 1 is also provided with a camera assembly 2. The camera assembly 2 includes a magnetic lamp holder 201, a universal lamp post 202, and a camera 203. The magnetic base of the magnetic lamp holder 201 is magnetically connected to the top of the hydraulic magnetic base 1. The top of the magnetic lamp holder 201 is fixedly connected to one end of the universal lamp post 202. The other end of the universal lamp post 202 is fixedly connected to the camera 203. The universal lamp post 202 is used to manually adjust the angle and length so that the camera 203 is aligned with the dial of the dial indicator 5.

[0021] Furthermore, the camera 203 is positioned so that its image is aligned with the dial of the dial gauge 5 to measure the actual changes in the floating ring 8.

[0022] The camera 203 uses the SINLIHE brand MF-08-1, which has both Bluetooth and WIFI dual modules, and can be used for remote operation by mobile phone in different situations. That is, it uses Bluetooth connection in the absence of network environment and WIFI connection in the presence of network environment.

[0023] Furthermore, a lighting lamp 204 is provided on the top of the camera 203, and the illumination direction of the lighting lamp 204 is consistent with the shooting direction of the camera 203, so as to prevent the shooting from being blurry due to poor lighting in the spindle sealed water tank 7.

[0024] Furthermore, the universal adjustment rod 3 includes at least two rotating joints, and each rotating joint is provided with a locking nut 4. The locking nut 4 is a wing nut with anti-slip teeth. When tightened, the rotating joint is fixed by frictional resistance, and when loosened, the rotating joint is allowed to adjust freely.

[0025] Furthermore, the magnetic base of the hydraulic magnetic seat 1 is magnetically connected to the top of the main shaft sealing water tank 7.

[0026] Furthermore, four sets of hydraulic magnetic bases 1 are provided, located on top of the main shaft sealing water tanks 7 in the four directions of +X, -X, +Y and -Y of the turbine.

[0027] The process of using the above device is as follows: Place the hydraulic universal magnetic base 1 on top of the spindle sealing water tank 7, then turn on the magnetic switch to make the hydraulic universal magnetic base 1 adhere to the top of the spindle sealing water tank 7, and stably adhere the magnetic column 6 to the top of the floating ring 8. Loosen the locking nut 4 of the universal adjustment rod 3, adjust the direction and angle of the universal adjustment rod 3 so that the measuring end of the dial indicator 5 is against the top of the magnetic column 6, and then tighten the locking nut 4 to fix the universal adjustment rod 3. At this time, adjust the universal light rod 202 so that the camera 203 is aligned with the dial of the dial indicator 5. Start the camera 203 and the light 204 to complete the remote shooting and record the changes in the dial of the dial indicator 5. This change is the floating amount of the magnetic column 6. However, the magnetic column 6 and the floating ring 8 are magnetically connected to form a whole, so the floating amount of the magnetic column 6 is the actual change of the floating ring 8.

Claims

1. A device for rapid measurement of the floating amount of the main shaft seal of a water turbine, characterized in that, The system includes a hydraulic magnetic base (1), the side wall of which is rotatably connected to one end of a universal adjustment rod (3), the other end of which is fixedly connected to the body of a dial indicator (5), the measuring end of the dial indicator (5) abutting against the top of a magnetic column (6), and the bottom of the magnetic column (6) being magnetically connected to the top of a floating ring (8); the hydraulic magnetic base (1) is provided at least once.

2. The device for rapid measurement of the floating amount of the turbine main shaft seal according to claim 1, characterized in that, The top of the hydraulic magnetic base (1) is also provided with a camera assembly (2). The camera assembly (2) includes a magnetic lamp holder (201), a universal lamp post (202), and a camera (203). The magnetic base of the magnetic lamp holder (201) is magnetically connected to the top of the hydraulic magnetic base (1). The top of the magnetic lamp holder (201) is fixedly connected to one end of the universal lamp post (202), and the other end of the universal lamp post (202) is fixedly connected to the camera (203).

3. The device for rapid measurement of the floating amount of the turbine main shaft seal according to claim 2, characterized in that, The camera (203) is positioned so that its shooting direction is aligned with the dial of the dial gauge (5).

4. The device for rapid measurement of the floating amount of the turbine main shaft seal according to claim 3, characterized in that, The camera (203) is equipped with a lighting lamp (204) on its top, and the lighting direction of the lighting lamp (204) is consistent with the shooting direction of the camera (203).

5. The device for rapid measurement of the floating amount of the turbine main shaft seal according to claim 1, characterized in that, The universal adjustment rod (3) includes at least two rotating joints, and a locking nut (4) is provided at each rotating joint. The locking nut (4) is a wing nut with anti-slip teeth. When tightened, the rotating joint is fixed by frictional resistance, and when loosened, the rotating joint is allowed to adjust freely.

6. The device for rapid measurement of the floating amount of the turbine main shaft seal according to claim 1, characterized in that, The magnetic base of the hydraulic magnetic seat (1) is magnetically connected to the top of the main shaft sealing water tank (7).

7. The device for rapid measurement of the floating amount of the turbine main shaft seal according to any one of claims 1-6, characterized in that, Four sets of hydraulic magnetic bases (1) are provided, located on top of the main shaft sealing water tanks (7) in the four directions of +X, -X, +Y and -Y of the water turbine.

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