Metal Chip Sensor Accuracy Test System

Abstract

The present invention discloses a metal chip sensor accuracy testing system. The metal chip sensor accuracy testing system includes a lubricating oil tank, a lubricating oil pump, and a metal chip sensor. The lubricating oil tank is connected to the lubricating oil pump via a first pipeline, the lubricating oil pump is connected to the metal chip sensor via a second pipeline, and the metal chip sensor is connected to the lubricating oil tank. The cross-sectional area of ​​the second pipeline is smaller than that of the first pipeline. The metal chip sensor accuracy testing system provided by the present invention has the advantage of ensuring that the size and quantity of metal chips used in experiments are consistent with actual conditions, thereby ensuring effective testing.

Description

Technical Field

[0001] The present invention relates to the technical field of sensor accuracy testing, and in particular to a metal chip sensor accuracy testing system. Background Art

[0002] The lubricating oil system of a heavy-duty gas turbine can not only ensure the lubrication and heat dissipation of rotating parts, but also remove ferromagnetic and non-ferromagnetic particles such as iron, aluminum, magnesium, and copper generated by the rotating parts during rotation. The metal chip sensor of the heavy-duty gas turbine is used to detect these metal chips and reflect the wear condition, thereby determining whether parts need to be repaired or replaced.

[0003] In related art, the method of testing the accuracy of heavy-duty gas turbine lubricating oil metal chip sensors does not take into account the actual wear and tear that produces metal chips. The size and quantity of the metal chips used in the experiment deviate from the actual situation, thereby affecting the test results. Summary of the Invention

[0004] The present invention aims to at least partially address one of the technical problems in the related art. To this end, embodiments of the present invention provide a metal chip sensor accuracy testing system. This system ensures that the size and quantity of metal chips used in the experiment are consistent with actual conditions, ensuring effective testing.

[0005] According to an embodiment of the present invention, a metal chip sensor accuracy testing system includes a lubricating oil tank, a lubricating oil pump and a metal chip sensor. The lubricating oil tank is connected to the lubricating oil pump through a first pipeline, the lubricating oil pump is connected to the metal chip sensor through a second pipeline, and the metal chip sensor is connected to the lubricating oil tank. The cross-sectional area of ​​the second pipeline is smaller than the cross-sectional area of ​​the first pipeline.

[0006] According to the metal chip sensor accuracy testing system of an embodiment of the present invention, the lubricating oil pump is used to drive the circulation of lubricating oil in the lubricating oil tank, and the cross-sectional area of ​​the second pipeline is smaller than the cross-sectional area of ​​the first pipeline. As a result, the load of the lubricating oil pump is increased, thereby accelerating the wear of the lubricating oil pump and generating metal chip particles. The metal chips are generated by actual wear. Therefore, the size and number of the metal chip particles used in the experiment in this embodiment are consistent with the actual situation, ensuring the test effect.

[0007] In some embodiments, the metal chip sensor accuracy testing system further includes a lubricating oil heater, and the lubricating oil tank is connected to the first pipeline via the lubricating oil heater.

[0008] In some embodiments, the metal chip sensor accuracy testing system further includes a flow regulating valve, and the lubricating oil tank is connected to the lubricating oil heater via the flow regulating valve.

[0009] In some embodiments, the metal chip sensor accuracy testing system further includes a first temperature and pressure sensor and a second temperature and pressure sensor, wherein the first temperature and pressure sensor is installed in the first pipeline, and the second temperature and pressure sensor is installed in the second pipeline.

[0010] In some embodiments, the metal chip sensor accuracy testing system further includes an oil filter, and the metal chip sensor is connected to the oil tank through the oil filter.

[0011] In some embodiments, at least a portion of the second pipeline is a flexible tube, and at least a portion of the second pipeline is adjacent to an oil inlet of the metal chip sensor. The metal chip sensor accuracy testing system further includes a third pipeline, the third pipeline connecting the metal chip sensor and the oil filter, and at least a portion of the third pipeline is a flexible tube, and at least a portion of the third pipeline is adjacent to an oil outlet of the metal chip sensor.

[0012] In some embodiments, the metal chip sensor accuracy testing system further includes a vibration table and a controller, the metal chip sensor is disposed on the vibration table, and the controller is electrically connected to the vibration table.

[0013] In some embodiments, the metal chip sensor accuracy testing system further includes a computer processing system, and the computer processing system is electrically connected to the metal chip sensor.

[0014] In some embodiments, the metal chip sensor accuracy testing system further includes a liquid level sensor, which is installed in the lubricating oil tank.

[0015] In some embodiments, the first temperature and pressure sensor, the second temperature and pressure sensor, the computer processing system, the controller, and the liquid level sensor are all connected to an automatic shutdown protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 4 is a system diagram of a metal chip sensor accuracy testing system according to an embodiment of the present invention.

[0017] Figure numerals: 1. Lubricating oil tank; 11. Liquid level sensor; 2. Lubricating oil pump; 3. Metal chip sensor; 31. Vibrating table; 32. Controller; 4. First pipeline; 41. First temperature and pressure sensor; 5. Second pipeline; 51. Second temperature and pressure sensor; 6. Lubricating oil heater; 7. Flow regulating valve; 8. Oil filter; 9. Computer processing system. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] The following combination Figure 1 A metal chip sensor accuracy testing system according to an embodiment of the present invention is described.

[0020] like Figure 1 As shown, the metal chip sensor accuracy testing system according to an embodiment of the present invention includes a lubricating oil tank 1, a lubricating oil pump 2 and a metal chip sensor 3. The lubricating oil tank 1 is connected to the lubricating oil pump 2 through a first pipeline 4, the lubricating oil pump 2 is connected to the metal chip sensor 3 through a second pipeline 5, and the metal chip sensor 3 is connected to the lubricating oil tank 1. The cross-sectional area of ​​the second pipeline 5 is smaller than the cross-sectional area of ​​the first pipeline 4.

[0021] It can be understood that the lubricating oil tank 1, the lubricating oil pump 2, and the metal chip sensor 3 form a closed circuit for circulating the lubricating oil.

[0022] According to the metal chip sensor accuracy testing system according to an embodiment of the present invention, the lubricating oil pump 2 is used to drive the lubricating oil in the lubricating oil tank 1 to circulate in the above-mentioned closed loop, and the cross-sectional area of ​​the second pipeline 5 is smaller than the cross-sectional area of ​​the first pipeline 4. As a result, the load of the lubricating oil pump 2 is increased, thereby accelerating the wear of the lubricating oil pump 2 and generating metal chip particles. The metal chips are generated by actual wear. Therefore, the size and number of the metal chip particles used in the experiment in this embodiment are consistent with the actual situation, ensuring the test effect.

[0023] The metal chip sensor 3 is used to detect the number and size of metal chip particles.

[0024] Specifically, the diameter of the second pipeline 5 is smaller than the diameter of the first pipeline 4 , that is, the second pipeline 5 is thinner than the first pipeline 4 .

[0025] In some embodiments, as Figure 1 As shown, the metal chip sensor accuracy testing system further includes a lubricating oil heater 6 , and the lubricating oil tank 1 is connected to the first pipeline 4 via the lubricating oil heater 6 .

[0026] The oil heater 6 is used to heat the oil in the closed circuit. This increases the load on the oil pump 2, further accelerating its wear. Alternatively, the speed of the oil pump 2 can be increased to increase its load. All three methods of increasing the load on the oil pump 2 can accelerate its wear. This, in turn, accelerates the generation of metal shavings and improves work efficiency.

[0027] In some embodiments, as Figure 1As shown, the metal chip sensor accuracy test system further includes a flow regulating valve 7 , and the lubricating oil tank 1 is connected to the lubricating oil heater 6 via the flow regulating valve 7 .

[0028] The flow regulating valve 7 is used to control the flow of lubricating oil in the closed circuit, thereby ensuring that the fluid pressure applied to each component is appropriate and preventing the components from being damaged due to high pressure.

[0029] In some embodiments, as Figure 1 As shown, the metal chip sensor accuracy testing system further includes a first temperature and pressure sensor 41 and a second temperature and pressure sensor 51 . The first temperature and pressure sensor 41 is installed in the first pipeline 4 , and the second temperature and pressure sensor 51 is installed in the second pipeline 5 .

[0030] The first temperature and pressure sensor 41 measures the pressure and temperature of the oil flowing through the first pipeline 4, while the second temperature and pressure sensor 51 measures the pressure and temperature of the oil flowing through the second pipeline 5. Based on these measurements, the operator can determine the load level of the oil pump 2 in real time and adjust the load accordingly.

[0031] The pressure of the lubricating oil can be adjusted by the rotation speed of the lubricating oil pump 2 .

[0032] In some embodiments, as Figure 1 As shown, the metal chip sensor accuracy testing system further includes an oil filter 8 , through which the metal chip sensor 3 is connected to the lubricating oil tank 1 .

[0033] The oil filter 8 is used to collect the metal chip particles after flowing through the metal chip sensor 3 , and then the number and size of the metal chip particles are measured by relevant equipment to obtain the actual value of the metal chip particles.

[0034] It should be noted that the measurement result of metal chip particles at the metal chip sensor 3 is the measured value. By comparing the actual value with the measured value, the accuracy of the metal chip sensor 3 can be calculated, thereby verifying the accuracy of the metal chip sensor 3. The design of the oil filter 8 also reduces the impact of false alarms caused by the metal chip sensor 3.

[0035] In some embodiments, at least a portion of the second pipeline 5 is a flexible tube. At least a portion of the second pipeline 5 is adjacent to the oil inlet of the metal chip sensor 3 . The metal chip sensor accuracy testing system further includes a third pipeline connecting the metal chip sensor 3 and the oil filter 8 . At least a portion of the third pipeline is a flexible tube. At least a portion of the third pipeline is adjacent to the oil outlet of the metal chip sensor 3 .

[0036] Therefore, when the vibration table 31 drives the metal chip sensor 3 to vibrate, the flexible tube portion in the second pipeline 5 and the flexible tube portion in the third pipeline can play a good shock-absorbing and shock-resistant effect, thereby enhancing its ability to resist fatigue damage and extending the service life of the second pipeline 5 and the third pipeline.

[0037] Specifically, the flexible tube portion in the second pipeline 5 and the flexible tube portion in the third pipeline can both be metal hoses or rubber hoses.

[0038] In some embodiments, as Figure 1 As shown, the metal chip sensor accuracy testing system further includes a vibration table 31 and a controller 32 . The metal chip sensor 3 is disposed on the vibration table 31 , and the controller 32 is electrically connected to the vibration table 31 .

[0039] The vibration table 31 can simulate the operating vibration of the heavy-duty gas turbine, thereby creating a working environment closer to the actual working condition of the metal chip sensor 3 and thereby testing the stability of the metal chip sensor 3. In addition, the vibration table 31 is also used to support the metal chip sensor 3.

[0040] The controller 32 is used to control the vibration form of the vibration table 31, thereby facilitating the vibration table 31 to create a complex and diverse working environment, thereby being able to detect the stability of the metal chip sensor 3 from multiple aspects, thereby improving the integrity and accuracy of the detection.

[0041] In some embodiments, as Figure 1 As shown, the metal chip sensor accuracy testing system further includes a computer processing system 9 , which is electrically connected to the metal chip sensor 3 .

[0042] When metal chip particles flow through the metal chip sensor 3, they generate an electromotive force. The amplitude and phase of the output signal from the metal chip sensor 3 reflect the size and type of the metal chip particles. This output signal is transmitted to the computer processing system 9 for analysis and processing. The computer processing system 9 then displays the number and size of ferromagnetic or non-ferromagnetic particles that have passed through the metal chip sensor 3.

[0043] Therefore, the design of the computer processing system 9 achieves the effect of processing the detection data in real time and presenting it.

[0044] It should be noted that the display data of the computer processing system 9 are the measurement values ​​of the metal chip sensor 3 .

[0045] Specifically, the computer processing system 9 and the metal chip sensor 3 are connected via wires.

[0046] Specifically, the computer processing system 9 is preferably a computer.

[0047] In some embodiments, as Figure 1As shown, the metal chip sensor accuracy testing system further includes a liquid level sensor 11 , which is installed in the lubricating oil tank 1 .

[0048] The liquid level sensor 11 is used to measure the liquid level height in the oil tank 1 so as to observe the change of the oil amount in the oil tank 1 in real time and ensure the reliability of the experiment.

[0049] In some embodiments, the first temperature and pressure sensor 41 , the second temperature and pressure sensor 51 , the computer processing system 9 , the controller 32 , and the liquid level sensor 11 are all connected to the automatic shutdown protection device.

[0050] When the measured values ​​of the above components exceed the safety limit, the automatic shutdown protection device will be triggered. As a result, the metal chip sensor accuracy test system will automatically shut down for protection to reduce damage to components.

[0051] The metal chip sensor accuracy testing system according to an embodiment of the present invention utilizes the diameter difference between the first and second pipelines 4 and 5, the lubricating oil temperature, and the rotational speed of the lubricating oil pump 2 as acceleration factors for lubricating oil pump 2 wear, thereby accelerating the wear of the lubricating oil pump 2 in multiple ways. The resulting metal chip particles more closely resemble actual operating conditions, providing a more accurate test of the accuracy of the metal chip sensor 3.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0054] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0055] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0056] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0057] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those skilled in the art are all within the scope of protection of the present invention.

Claims

1. A metal chip sensor accuracy testing system, characterized in that: include: An oil tank (1), an oil pump (2) and a metal chip sensor (3), wherein the oil tank (1) is connected to the oil pump (2) via a first pipeline (4), the oil pump (2) is connected to the metal chip sensor (3) via a second pipeline (5), and the metal chip sensor (3) is connected to the oil tank (1), wherein the cross-sectional area of ​​the second pipeline (5) is smaller than the cross-sectional area of ​​the first pipeline (4); It also includes a lubricating oil heater (6), and the lubricating oil tank (1) is connected to the first pipeline (4) via the lubricating oil heater (6); It also includes an oil filter (8), and the metal chip sensor (3) is connected to the lubricating oil tank (1) through the oil filter (8); It also includes a flow regulating valve (7), and the lubricating oil tank (1) is connected to the lubricating oil heater (6) via the flow regulating valve (7); It also includes a first temperature and pressure sensor (41) and a second temperature and pressure sensor (51), wherein the first temperature and pressure sensor (41) is installed on the first pipeline (4), and the second temperature and pressure sensor (51) is installed on the second pipeline (5); It also includes a third pipeline, the third pipeline connecting the metal chip sensor (3) and the oil filter (8), and at least a portion of the third pipeline is adjacent to the oil outlet of the metal chip sensor (3).

2. The metal chip sensor accuracy testing system according to claim 1, characterized in that: At least a portion of the second pipeline (5) is a flexible pipe, and at least a portion of the second pipeline (5) is adjacent to the oil inlet of the metal chip sensor (3). At least a portion of the third pipeline is a flexible pipe.

3. The metal chip sensor accuracy testing system according to claim 1, characterized in that: The metal chip sensor accuracy testing system further comprises a vibration table (31) and a controller (32), the metal chip sensor (3) is arranged on the vibration table (31), and the controller (32) and the vibration table (31) are electrically connected.

4. The metal chip sensor accuracy testing system according to claim 3, characterized in that: The metal chip sensor accuracy testing system further comprises a computer processing system (9), and the computer processing system (9) is electrically connected to the metal chip sensor (3).

5. The metal chip sensor accuracy testing system according to claim 4, characterized in that: The metal chip sensor accuracy testing system further comprises a liquid level sensor (11), and the liquid level sensor (11) is installed in the lubricating oil tank (1).

6. The metal chip sensor accuracy testing system according to claim 5, characterized in that: The first temperature and pressure sensor (41), the second temperature and pressure sensor (51), the computer processing system (9), the controller (32), and the liquid level sensor (11) are all connected to an automatic shutdown protection device.

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