An on-line monitoring device for turbine oil quality

Abstract

An online turbine oil quality monitoring device includes a housing, an oil pump, and a liquid characteristic analyzer, as well as a video acquisition component. The oil pump has an inlet connecting pipe, and the oil pump outlet is connected to the inlet of the liquid characteristic analyzer. The outlet of the liquid characteristic analyzer is connected to the inlet of the video acquisition component via a pipeline. The oil pump, liquid characteristic analyzer, and video acquisition component are all installed in the housing, with the oil pump inlet extending outside the housing and the video acquisition component outlet extending outside the housing. A controller is also included, with the signal output terminals of the video acquisition component and the liquid characteristic analyzer respectively connected to the signal acquisition terminal of the controller. The purpose of this invention is to provide an online turbine oil quality monitoring device with an oil video acquisition device, the acquired video image data of which can be used for wear particle analysis.

Description

Technical Field

[0001] This utility model relates to the field of oil detection technology, and in particular to an oil detection device. Background Technology

[0002] Turbine oil is a high-performance lubricant commonly used in turbine machinery such as steam turbines, water turbines, or gas turbines. An online oil monitoring device is a comprehensive system integrating sensor technology and data acquisition. It can be directly connected to the equipment to monitor and analyze the lubricating oil used in the equipment. It can monitor key parameters such as contamination, moisture content, temperature, and viscosity of industrial equipment lubricating oil or hydraulic oil in real time, thereby assessing the oil condition and providing maintenance recommendations.

[0003] Wear particle analysis is a qualitative and quantitative measurement of mechanical wear substances and other particles contained in oil. Based on the composition, morphology, size, and quantity of wear substances in the oil sample, it analyzes the wear location, wear type, wear process, and wear degree of the equipment, thereby enabling equipment fault diagnosis and life prediction. Wear particle analysis requires dedicated equipment that requires oil sampling and sample monitoring. It is not integrated into oil quality monitoring devices, so existing oil quality monitoring devices cannot perform online wear particle analysis.

[0004] Based on the above, it is necessary to integrate wear particle analysis into the existing online oil quality monitoring device to improve the data acquisition capability of the existing oil quality monitoring device, thereby improving the accuracy of fault diagnosis and life prediction. Utility Model Content

[0005] To address the aforementioned shortcomings, the purpose of this invention is to propose an online monitoring device for turbine oil quality. This device includes an oil video acquisition unit, and the acquired video image data can be used for wear particle analysis.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An online monitoring device for turbine oil quality includes a housing, an oil pump, and a liquid characteristic analyzer, as well as a video acquisition component;

[0008] The oil pump has an oil inlet connection pipe at its inlet, the oil pump outlet is connected to the oil inlet of the liquid characteristic analyzer, and the liquid characteristic analyzer outlet is connected to the oil inlet of the video acquisition component through a pipeline.

[0009] The oil pump, liquid characteristic analyzer, and video acquisition component are all installed in the housing. The oil inlet of the oil pump extends outside the housing, and the oil outlet of the video acquisition component extends outside the housing.

[0010] It also includes a controller, and the signal output terminals of the video acquisition component and the liquid property analyzer are respectively connected to the signal acquisition terminal of the controller.

[0011] Preferably, the video acquisition component includes a mounting base, a camera assembly, a turntable lens group, an oil circuit block, and a light source board;

[0012] The camera assembly includes a camera and a camera mounting tube, the camera mounting tube being mounted on the mounting base;

[0013] The oil circuit block is made of transparent material and is located at the position pointed to by the camera lens. The oil circuit block is fixedly installed on the mounting base, and the light source board is located on the side of the oil circuit block facing away from the camera. The light source board is fixedly installed on the mounting base.

[0014] The turntable lens assembly includes a turntable and multiple objective lenses. The center of the turntable is mounted on the camera mounting cylinder via a damping shaft. The damping shaft, the central axis of the objective lenses, and the central axis of the camera are parallel to each other.

[0015] Multiple objectives are arranged in a circular array with the center of the turntable as the reference, and the position of the objectives relative to the central axis of the camera changes as the turntable rotates.

[0016] The camera's central axis is located at a point on the objective lens's rotation path, and the camera's central axis is oriented towards the objective lens. When the objective lens and the camera are in the same position, the camera's central axis coincides with the objective lens's central axis.

[0017] The magnification of the multiple objectives is different.

[0018] Preferably, it also includes a translation stage, the camera mounting cylinder is mounted on the translation stage, and the translation stage is mounted on the mounting base.

[0019] Preferably, the video acquisition component further includes a light shield, which houses the camera assembly, turntable lens group, oil circuit block and light source plate inside the light shield, and the light shield is mounted on a mounting base.

[0020] Furthermore, the oil passage block is made of quartz material, and the oil passage block is provided with an oil inlet and an oil outlet. The oil passage block is provided with an oil flow channel and an observation pool inside.

[0021] The observation pool is located within the observation range of the camera lens. The oil inlet of the oil circuit block is connected to the inlet of the observation pool through an oil flow channel, and the outlet of the observation pool is connected to the outlet through an oil flow channel.

[0022] The observation pool is a cavity located inside the oil circuit block.

[0023] Furthermore, the cabinet door is equipped with a display device;

[0024] The camera is an industrial camera or a high-speed camera; the camera's signal output terminal is connected to the controller's signal acquisition terminal; the display device's signal acquisition terminal is connected to the controller's signal output terminal.

[0025] Furthermore, the oil pump is equipped with a flow control valve at its inlet.

[0026] One of the above technical solutions includes the following beneficial effects: This solution performs visual analysis of the oil through video acquisition. If wear particles are present in the oil, the size, quantity, and color of the wear particles in the image can be analyzed to determine which parts of the equipment are worn and the degree of wear. This data can serve as one of the bases for equipment fault diagnosis. By setting up a video acquisition device, the data acquisition capability of the online oil quality monitoring device is improved compared to existing equipment, thereby relatively improving the accuracy of oil monitoring. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the overall structure of the video acquisition component of this utility model;

[0030] Figure 4 This is a schematic diagram showing the relative positions of the camera and the oil circuit block of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the oil passage block of this utility model.

[0032] The components include: housing 100, oil pump 200, liquid characteristic analyzer 300, video acquisition assembly 400, mounting base 410, camera assembly 420, camera 421, camera mounting tube 422, turntable lens assembly 430, turntable 431, objective lens 432, oil passage block 440, oil flow channel 441, observation pool 442, light source board 450, translation stage 460, and controller 500. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] like Figure 1-2As shown, an online monitoring device for turbine oil quality includes a housing 100, an oil pump 200, and a liquid characteristic analyzer 300, as well as a video acquisition component 400.

[0035] The oil pump 200 has an oil inlet connecting pipe at its inlet, and the outlet of the oil pump 200 is connected to the oil inlet of the liquid characteristic analyzer 300. The oil outlet of the liquid characteristic analyzer 300 is connected to the oil inlet of the video acquisition component 400 through a pipeline.

[0036] The oil pump 200, liquid characteristic analyzer 300 and video acquisition component 400 are all installed in the housing 100. The oil inlet of the oil pump 200 extends outside the housing 100, and the oil outlet of the video acquisition component 400 extends outside the housing 100.

[0037] It also includes a controller 500, and the signal output terminals of the video acquisition component 400 and the liquid property analyzer 300 are respectively connected to the signal acquisition terminal of the controller 500.

[0038] The housing 100 protects the online turbine oil quality monitoring device and facilitates its installation near the equipment being monitored. The oil pump 200 draws the oil to be tested into the monitoring device. The liquid characteristic analyzer 300 monitors the oil's viscosity, dielectric constant, density, and temperature. These indicators assess the oil's lubrication performance, contaminants, and purity. The liquid characteristic analyzer 300 used is a GCYT-A multi-functional liquid characteristic analyzer. In addition to these basic functions, this solution performs visual analysis of the oil through video acquisition. If wear particles are present in the oil, the size, quantity, and color of these particles in the image can be analyzed to determine which parts of the equipment are worn and the degree of wear. This data can serve as one of the bases for equipment fault diagnosis. By incorporating a video acquisition device, the online turbine oil quality monitoring device improves data acquisition capabilities compared to existing equipment, thereby enhancing the accuracy of oil monitoring.

[0039] like Figure 3-4 As shown, the video acquisition component 400 includes a mounting base 410, a camera component 420, a turntable lens group 430, an oil circuit block 440, and a light source board 450.

[0040] The camera assembly 420 includes a camera 421 and a camera mounting cylinder 422, wherein the camera mounting cylinder 422 is mounted on the mounting base 410;

[0041] The oil circuit block 440 is made of transparent material. The oil circuit block 440 is located at the position pointed to by the lens of the camera 421. The oil circuit block 440 is fixedly installed on the mounting base 410. The light source plate 450 is located on the side of the oil circuit block 440 that is away from the camera 421. The light source plate 450 is fixedly installed on the mounting base 410.

[0042] The turntable lens assembly 430 includes a turntable 431 and multiple objective lenses 432. The center of the turntable 431 is mounted on the camera mounting cylinder 422 via a damping shaft. The damping shaft, the central axis of the objective lens 432, and the central axis of the camera 421 are parallel to each other.

[0043] Multiple objective lenses 432 are arranged in a circular array with the center of the turntable 431 as the reference. The position of the objective lenses 432 relative to the central axis of the camera 421 changes as the turntable 431 rotates.

[0044] The central axis of camera 421 is located at a point on the rotation trajectory of objective lens 432. The central axis of camera 421 is oriented towards objective lens 432. When objective lens 432 and camera 421 are in the same position, the central axis of camera 421 coincides with the central axis of objective lens 432.

[0045] The magnification of the multiple objectives 432 is different.

[0046] The camera assembly 420, oil channel block 440, and light source plate 450 are the main components for sampling the oil. After the oil flows into the oil channel block 440, the light source plate 450 illuminates the oil channel block 440, allowing the camera 421 to capture video of the oil in the oil channel block 440. The objective lens 432 has different magnifications to suit different needs. Lower magnification objective lenses 432 are more suitable for observing larger particles, their overall distribution, and the approximate shape and color of the particles, making them suitable for routine monitoring and detecting obvious abnormal particles or contaminants. Higher magnification objective lenses 432 are more suitable for observing larger particles, their overall distribution, and the approximate shape and color of the particles. High magnification allows for observation of more details, such as whether the edges of particles are sharp or whether there are cutting marks. These characteristics help distinguish different types of wear. However, relatively high magnification results in low observation efficiency and is suitable for analyzing oil over a specific short period of time. This solution features a turntable lens group 430, which allows switching between different magnifications of eyepieces as needed, improving the convenience for users in adjusting eyepiece magnification. The turntable 431 uses a damped rotating shaft to stabilize the position of the turntable 431 after adjustment. When adjusting or changing eyepieces, simply rotate the turntable 431 until the central axis of the eyepiece is aligned with the central axis of the camera 421.

[0047] It also includes a translation stage 460, on which the camera mounting cylinder 422 is mounted, and on which the translation stage 460 is mounted, and on the mounting base 410.

[0048] Used to adjust the distance between the camera mounting cylinder 422 and the oil passage block 440. The camera mounting cylinder 422 is equipped with a camera 421 and an eyepiece. Adjusting the position between the eyepiece and the oil passage block 440 ensures clear observation.

[0049] In addition, the video acquisition component 400 also includes a light shield, which covers the camera component 420, the turntable lens group 430, the oil circuit block 440 and the light source plate 450 inside the light shield, and the light shield is mounted on the mounting base 410.

[0050] The light shield creates a darkroom to prevent other light sources from entering and affecting the display effect of the oil circuit block 440.

[0051] like Figure 5 As shown, the oil passage block 440 is made of quartz. The oil passage block 440 is provided with an oil inlet and an oil outlet. The oil passage block 440 is provided with an oil flow channel 441 and an observation pool 442 inside.

[0052] The observation pool 442 is located within the observation range of the lens of the camera 421. The oil inlet of the oil circuit block 440 is connected to the inlet of the observation pool 442 through the oil flow channel 441, and the outlet of the observation pool 442 is connected to the oil outlet through the oil flow channel 441.

[0053] The observation pool 442 is a cavity opened inside the oil circuit block 440.

[0054] The observation pool 442 contains a relatively larger amount of oil, and the flow rate is relatively slower, which is beneficial for observation.

[0055] In addition, the door of the enclosure 100 is equipped with a display device;

[0056] The camera 421 is an industrial camera or a high-speed camera; the signal output terminal of the camera 421 is connected to the signal acquisition terminal of the controller 500; the signal acquisition terminal of the display device is connected to the signal output terminal of the controller 500.

[0057] The video image information captured by camera 421 is output through a display device, making it easy for users to understand the data results.

[0058] In addition, the oil pump 200 is equipped with a flow control valve at its inlet.

[0059] Install a flow control valve to control the flow rate and velocity of the oil.

[0060] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. An online monitoring device for turbine oil quality, comprising a housing, an oil pump, and a liquid characteristic analyzer, characterized in that, It also includes video capture components; The oil pump has an oil inlet connection pipe at its inlet, the oil pump outlet is connected to the oil inlet of the liquid characteristic analyzer, and the liquid characteristic analyzer outlet is connected to the oil inlet of the video acquisition component through a pipeline. The oil pump, liquid characteristic analyzer, and video acquisition component are all installed in the housing. The oil inlet of the oil pump extends outside the housing, and the oil outlet of the video acquisition component extends outside the housing. It also includes a controller, and the signal output terminals of the video acquisition component and the liquid property analyzer are respectively connected to the signal acquisition terminal of the controller.

2. The online turbine oil quality monitoring device according to claim 1, characterized in that, The video acquisition component includes a mounting base, a camera assembly, a turntable lens group, an oil circuit block, and a light source board; The camera assembly includes a camera and a camera mounting tube, the camera mounting tube being mounted on the mounting base; The oil circuit block is made of transparent material and is located at the position pointed to by the camera lens. The oil circuit block is fixedly installed on the mounting base, and the light source board is located on the side of the oil circuit block facing away from the camera. The light source board is fixedly installed on the mounting base. The turntable lens assembly includes a turntable and multiple objective lenses. The center of the turntable is mounted on the camera mounting cylinder via a damping shaft. The damping shaft, the central axis of the objective lenses, and the central axis of the camera are parallel to each other. Multiple objectives are arranged in a circular array with the center of the turntable as the reference, and the position of the objectives relative to the central axis of the camera changes as the turntable rotates. The camera's central axis is located at a point on the objective lens's rotation path, and the camera's central axis is oriented towards the objective lens. When the objective lens and the camera are in the same position, the camera's central axis coincides with the objective lens's central axis. The magnification of the multiple objectives is different.

3. The online turbine oil quality monitoring device according to claim 2, characterized in that, It also includes a translation stage, on which the camera mounting cylinder is mounted, and on which the translation stage is mounted to the mounting base.

4. The online turbine oil quality monitoring device according to claim 3, characterized in that, The video acquisition component also includes a light shield, which houses the camera assembly, turntable lens group, oil circuit block and light source plate inside the light shield, and the light shield is mounted on a mounting base.

5. The online turbine oil quality monitoring device according to claim 4, characterized in that, The oil passage block is made of quartz material. The oil passage block is provided with an oil inlet and an oil outlet. The oil passage block is provided with an oil flow channel and an observation pool inside. The observation pool is located within the observation range of the camera lens. The oil inlet of the oil circuit block is connected to the inlet of the observation pool through an oil flow channel, and the outlet of the observation pool is connected to the outlet through an oil flow channel. The observation pool is a cavity located inside the oil circuit block.

6. The online turbine oil quality monitoring device according to claim 5, characterized in that, The cabinet door is equipped with a display device; The camera is an industrial camera or a high-speed camera; the camera's signal output terminal is connected to the controller's signal acquisition terminal; the display device's signal acquisition terminal is connected to the controller's signal output terminal.

7. The online turbine oil quality monitoring device according to claim 6, characterized in that, The oil pump is equipped with a flow control valve at its inlet.

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