Qualitative water measurement device for turbine oil

Abstract

The application discloses a turbine oil moisture qualitative measurement device, which comprises a frame body, a sampling assembly, a sealing assembly and a detection assembly. The sampling assembly comprises a transparent measuring cylinder, a connecting pipe and an adjusting cylinder. The transparent measuring cylinder is communicated with the adjusting cylinder through the connecting pipe. The transparent measuring cylinder is provided with a viewing piece at the lower end of the transparent measuring cylinder. The sealing assembly comprises a sealing cover and a blocking piece. The sealing cover is connected with the lower end of the adjusting cylinder. The blocking piece is movably connected with the upper end of the adjusting cylinder, so as to open or block the opening at the upper end of the adjusting cylinder by moving the blocking piece. The detection assembly comprises a luxmeter and an irradiation lamp. The luxmeter and the irradiation lamp are oppositely arranged on the lateral side of the transparent measuring cylinder. The turbine oil moisture qualitative measurement device is convenient to move to the scene for operation, so that the qualitative measurement of the moisture content in the turbine oil can be realized on the spot, the oil quality can be judged, and the work efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of technology, and more particularly to a device for qualitative measurement of moisture in turbine oil. Background Technology

[0002] Determining the moisture content in turbine oil is an important periodic oiling test for hydropower stations. It is an effective means of monitoring potential problems and defects in oil-using equipment. Especially during unit maintenance, it is necessary to frequently measure the moisture content of turbine oil before, during, and after treatment to confirm the oil quality and promptly formulate the next oil treatment method and schedule, which involves a large workload.

[0003] In related technologies, the Karl Fischer method is commonly used for the determination of trace moisture in power plant turbine oil. This method has high accuracy and is suitable for the quantitative determination of trace moisture. However, this method has many disadvantages, such as cumbersome operation, easy occurrence of side reactions, long measurement time, inability to frequently move the test equipment to the field, and the fact that its titrant involves Karl Fischer reagent composed of substances such as iodine, sulfur dioxide, pyridine, and methanol, which contains toxic and flammable substances. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a portable qualitative measurement device for moisture content in turbine oil, so as to ensure on-site qualitative measurement of moisture content in turbine oil and determine whether the oil quality is qualified, thereby improving work efficiency.

[0006] The turbine oil moisture qualitative measurement device of this invention includes: a frame, a sampling component, a sealing component, and a detection component. The sampling component is connected to the frame and includes a transparent graduated cylinder, a connecting pipe, and an adjusting cylinder. The transparent graduated cylinder is connected to the adjusting cylinder via the connecting pipe. The transparent graduated cylinder, the connecting pipe, and the adjusting cylinder together form a generally U-shaped communicating vessel, allowing the oil injected into the transparent graduated cylinder to flow into the adjusting cylinder through the connecting pipe. The lower end of the transparent graduated cylinder is flush with the upper end of the adjusting cylinder. The transparent graduated cylinder has a position... The inspection component at the lower end of the transparent graduated cylinder includes a sealing assembly comprising a sealing cap and a sealing member. The sealing cap is connected to the lower end of the adjusting cylinder to seal the opening at the lower end of the adjusting cylinder. The sealing member is movably connected to the upper end of the adjusting cylinder to open or close the opening at the upper end of the adjusting cylinder by moving the sealing member. The detection assembly is connected to the frame and includes a lux meter and an illumination lamp. The lux meter and the illumination lamp are arranged opposite to each other on the periphery of the transparent graduated cylinder so that the light emitted by the illumination lamp passes through the transparent graduated cylinder and illuminates the lux meter.

[0007] The turbine oil moisture qualitative measurement device of this invention measures the transparency of the oil sample using a sampling component, compares the measurement result with a transparency comparison chart of a standard oil sample, and determines the range of trace moisture content in the sample. It also measures the illuminance of the oil sample using a detection component, compares the measurement result with a illuminance variation comparison chart of a standard oil sample, and further determines and verifies the range of trace moisture content in the sample.

[0008] Compared with related technologies, the turbine oil moisture qualitative measurement device of the present invention is easy to move to the field for operation, so as to ensure the qualitative measurement of the moisture content in the turbine oil in real time, and at the same time determine whether the oil quality is qualified, thereby improving work efficiency.

[0009] In some embodiments, the connecting pipe is inclined, the first end of the connecting pipe is connected to the opening at the lower end of the transparent measuring cylinder, the peripheral wall of the adjusting cylinder is provided with an oil inlet adjacent to the lower end of the adjusting cylinder, and the second end of the connecting pipe is connected to the oil inlet.

[0010] In some embodiments, the angle between the central axis of the connecting pipe and the central axis of the adjusting cylinder is greater than or equal to 45° and less than or equal to 90°.

[0011] In some embodiments, the cross-sectional area of ​​the connecting pipe gradually increases from the first end of the connecting pipe toward the second end of the connecting pipe.

[0012] In some embodiments, the frame is provided with an oil receiving box, the upper end of the oil receiving box has an opening, and the oil receiving box is located below the adjusting cylinder.

[0013] In some embodiments, the turbine oil moisture qualitative measuring device further includes an oil draining assembly, which includes an oil drain box and an oil drain pipe communicating with the oil drain box. The oil drain box is annular and is sleeved on the upper end of the regulating cylinder so that the oil in the regulating cylinder overflows into the oil drain box through the opening at the upper end of the regulating cylinder. The oil drain pipe is communicating with the oil receiving box so that the oil in the oil drain box is discharged into the oil receiving box through the oil drain pipe.

[0014] In some embodiments, the bottom wall of the oil leak box is inclined, and the connection between the oil drain pipe and the oil leak box is located at the lower end of the oil leak box, so that the oil in the oil leak box collects at the connection between the oil drain pipe and the oil leak box.

[0015] In some embodiments, the sealing element includes a threaded sleeve and a threaded rod with threaded engagement. The threaded sleeve is connected to the frame, and the lower end of the threaded rod is provided with a rubber plug, which abuts against the upper end of the adjusting cylinder.

[0016] In some embodiments, the rubber plug is provided with an annular groove, the upper end of the adjusting cylinder is inserted into the annular groove, and the inner wall of the annular groove contacts the inner peripheral wall of the adjusting cylinder, and the outer wall of the annular groove contacts the outer peripheral wall of the adjusting cylinder.

[0017] In some embodiments, the upper end of the threaded rod has a handle, and the distance between the handle and the upper end of the transparent measuring cylinder is less than the distance between the handle and the lower end of the transparent measuring cylinder. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the qualitative measurement device for moisture content in turbine oil according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the frame of the turbine oil moisture qualitative measurement device according to an embodiment of the present invention.

[0020] Figure 3 This is a top view of the sampling component of the turbine oil moisture qualitative measurement device according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the detection component of the qualitative measurement device for moisture content in turbine oil according to an embodiment of the present invention.

[0022] Figure 5 This is a cross-sectional view of the sampling component and sealing component of the turbine oil moisture qualitative measurement device according to an embodiment of the present invention.

[0023] Figure 6 This is an exploded structural diagram of the sealing assembly of the turbine oil moisture qualitative measurement device according to an embodiment of the present invention.

[0024] Figure 7 This is a cross-sectional view of the oil discharge assembly of the turbine oil moisture qualitative measurement device according to an embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram comparing the transparency of standard oil samples according to an embodiment of the present invention.

[0026] Figure 9 This is a schematic diagram comparing the degree of change in illuminance of standard oil samples according to an embodiment of the present invention.

[0027] Figure label:

[0028] Frame 1, Oil receiving box 11

[0029] Sampling assembly 2, transparent measuring cylinder 21, inspection piece 211, connecting tube 22, adjusting cylinder 23

[0030] Sealing assembly 3, sealing cap 31, sealing element 32, threaded sleeve 321, threaded rod 322, rubber plug 323, annular groove 3231, handle 324.

[0031] Detection component 4, illuminance meter 41, illumination lamp 42,

[0032] Oil drain assembly 5, oil leak box 51, oil drain pipe 52. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] The apparatus for qualitative measurement of moisture in turbine oil according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0035] like Figures 1 to 7 As shown, the turbine oil moisture qualitative measurement device of this invention includes: frame 1, sampling component 2, sealing component 3 and detection component 4.

[0036] Among them, such as Figure 1 and Figure 2 As shown, the frame 1 consists of a base and multiple support rods and telescopic rods mounted on the base. The base is used to place the frame on a horizontal surface (the ground or the working plane of the unit equipment). The support rods are used to fix components whose height does not need to be adjusted (e.g., sampling assembly 2 and sealing assembly 3), and the telescopic rods are used to fix components whose height is adjustable (e.g., detection assembly 4).

[0037] Sampling assembly 2 is connected to frame 1. Sampling assembly 2 includes a transparent measuring cylinder 21, a connecting pipe 22, and an adjusting cylinder 23. Both the transparent measuring cylinder 21 and the adjusting cylinder 23 are arranged vertically. The adjusting cylinder 23 is connected to the base via a support rod. The transparent measuring cylinder 21 is connected to the adjusting cylinder 23 via the connecting pipe 22. The transparent measuring cylinder 21, connecting pipe 22, and adjusting cylinder 23 together form a generally U-shaped communicating vessel, allowing the oil injected into the transparent measuring cylinder 21 to flow into the adjusting cylinder 23 through the connecting pipe 22. The lower end of the transparent measuring cylinder 21 is flush with the upper end of the adjusting cylinder 23. An inspection piece 211 is located at the lower end (bottom) of the transparent measuring cylinder 21.

[0038] The sealing assembly 3 includes a sealing cap 31 and a sealing element 32. The sealing cap 31 is detachably connected to the lower end of the regulating cylinder 23 to seal the opening at the lower end of the regulating cylinder 23. For example, an internal thread is formed on the inner wall of the regulating cylinder 23, and an external thread is formed on the peripheral wall of the sealing cap 31; the two are connected by a threaded connection. The sealing element 32 is movably connected to the upper end of the regulating cylinder 23 so that the opening at the upper end of the regulating cylinder 23 can be opened or closed by moving the sealing element 32.

[0039] It is understandable that when oil is injected into the transparent measuring cylinder 21, the oil flows through the connecting pipe 22 into the regulating cylinder 23. Only when the regulating cylinder 23 and the connecting pipe 22 are filled with oil, and the sealing member 32 blocks the opening at the upper end of the regulating cylinder 23, will the liquid level in the transparent measuring cylinder 21 continue to be injected to raise the liquid level in the transparent measuring cylinder 21.

[0040] That is, if the liquid level in the transparent measuring cylinder 21 is to drop, the opening at the upper end of the regulating cylinder 23 is opened by moving the sealing part 32, so that the oil in the regulating cylinder 23 overflows through the opening at the upper end of the regulating cylinder 23, thereby causing the liquid level in the transparent measuring cylinder 21 to drop.

[0041] Optionally, the transparent graduated cylinder 21 is a colorless plexiglass cylinder, with 10mm graduations, and the inspection piece 211 is an "E" shape. The sum of the volumes of the adjusting cylinder 23 and the connecting pipe 22 is greater than the volume of the transparent graduated cylinder 21 to ensure that all the oil in the transparent graduated cylinder 21 can flow into the adjusting cylinder 23 and the connecting pipe 22.

[0042] When measuring the transparency of an oil sample, the thoroughly mixed oil sample is filled into a transparent graduated cylinder 21 (the oil sample does not separate into layers inside the cylinder). The operator observes vertically downwards from the top opening of the transparent graduated cylinder 21, while simultaneously opening the top opening of the adjusting cylinder 23. The oil level in the transparent graduated cylinder 21 is lowered until the "E" shape at the bottom of the cylinder is clearly visible, at which point oil dispensing is stopped. The height of the oil column in the transparent graduated cylinder 21 is recorded. For example... Figure 8 The standard oil sample transparency comparison chart shown indicates the range of trace moisture content in the sample.

[0043] Method for establishing a standard oil sample transparency comparison spectrum: Prepare turbine oil standard solutions with varying moisture content gradients, at 30, 60, 90, 100, 120, 150, and 180 ppm respectively. Under the same illuminance and white transmitted light source (natural light or the same lighting environment in the factory), use sampling component 2 to sequentially measure the prepared turbine oil standard solutions with different moisture contents and record the changes in transparency, thereby establishing a standard oil sample transparency comparison spectrum.

[0044] Furthermore, the detection component 4 is connected to the frame 1. The detection component 4 includes a lux meter 41 and an illumination lamp 42. The lux meter 41 and the illumination lamp 42 are respectively connected to the base through a telescopic rod. The lux meter 41 and the illumination lamp 42 are arranged opposite each other on the periphery of the transparent measuring cylinder 21 so that the light emitted by the illumination lamp 42 passes through the transparent measuring cylinder 21 and illuminates the lux meter 41.

[0045] Understandably, an illuminance meter 41 is installed at the rear of the transparent graduated cylinder 21, and an illumination lamp 42 is installed at the front of the transparent graduated cylinder 21. The transparent graduated cylinder 21 is filled with oil sample. The illumination lamp 42 is turned on, allowing the light emitted by the illumination lamp 42 to pass through the oil sample and illuminate the illuminance meter 41. The illuminance value displayed by the illuminance meter 41 is recorded. For example... Figure 9 The comparison graph of the illuminance variation of the standard oil sample shows the range of trace moisture content in the sample.

[0046] Method for establishing a comparative spectrum of illuminance changes in standard oil samples: Prepare turbine oil standard solutions with gradient moisture content, at successively 30, 60, 90, 100, 120, 150, and 180 ppm. Inject the different turbine oil standard solutions sequentially into a transparent graduated cylinder 21. Measure the degree of illuminance change of each standard solution using an illumination lamp 42 and a lux meter 41, and record the changes in illuminance values ​​to establish a comparative spectrum of illuminance changes in standard oil samples.

[0047] Therefore, the turbine oil moisture qualitative measurement device of this embodiment of the invention measures the transparency of the oil sample through the sampling component 2, compares the measurement result with the transparency comparison spectrum of the standard oil sample, and determines the range of trace moisture content in the sample. It also measures the illuminance value of the oil sample through the detection component 4, compares the measurement result with the illuminance change comparison spectrum of the standard oil sample, and further determines and verifies the range of trace moisture content in the sample.

[0048] Compared with related technologies, the turbine oil moisture qualitative measurement device of the present invention is easy to move to the field for operation, so as to ensure the qualitative measurement of the moisture content in the turbine oil in real time, and at the same time determine whether the oil quality is qualified, thereby improving work efficiency.

[0049] For example, after taking an oil sample, the thoroughly mixed oil sample is filled into a transparent graduated cylinder 21. The operator observes vertically downwards from the top opening of the transparent graduated cylinder 21, while simultaneously opening the top opening of the adjusting cylinder 23 until the oil level in the transparent graduated cylinder 21 is low enough to clearly see the "E" shape at the bottom. Oil dispensing is then stopped. The height of the oil column in the transparent graduated cylinder 21 is recorded as 230 mm. By comparing the transparency of the oil with a standard oil sample comparison chart, the water content in the oil is measured to be between 120-150 ppm.

[0050] Then, adjust the height of the illuminance meter 41 and the illumination lamp 42, turn on the illumination lamp 42 so that the light emitted by the illumination lamp 42 passes through the oil sample and shines on the illuminance meter 41. Record the illuminance value displayed by the illuminance meter 41 as 1100 Lux. Compare the illuminance change of the standard oil sample with the comparison chart and find that the water content in the oil is between 120-150 ppm.

[0051] Based on the combined results of the two measurements and comparisons, it can be determined that the water content in the oil sample is between 120 and 150 ppm.

[0052] In some embodiments, such as Figure 1 and Figure 5 As shown, the connecting pipe 22 is inclined, and the first end of the connecting pipe 22 (the upper port of the connecting pipe 22) is connected to the opening at the lower end of the transparent measuring cylinder 21. The peripheral wall of the adjusting cylinder 23 is provided with an oil inlet adjacent to the lower end of the adjusting cylinder 23, and the second end of the connecting pipe 22 (the lower port of the connecting pipe 22) is connected to the oil inlet.

[0053] Optionally, the central axis of the connecting pipe 22 and the central axis of the adjusting cylinder 23 form an angle, wherein the angle between the central axis of the connecting pipe 22 and the central axis of the adjusting cylinder 23 is greater than or equal to 45° and less than or equal to 90°. Preferably, the angle between the central axis of the connecting pipe 22 and the central axis of the adjusting cylinder 23 is 60°.

[0054] Furthermore, the cross-sectional area of ​​the connecting pipe 22 gradually increases from the first end of the connecting pipe 22 toward the second end of the connecting pipe 22.

[0055] Therefore, the oil in the transparent measuring cylinder 21 flows to the regulating cylinder 23 through the inclined and variable diameter connecting pipe 22. The liquid level in the transparent measuring cylinder 21 is adjusted by overflowing and draining the liquid from the regulating cylinder 23. Compared with the adjustment method of directly draining the liquid from the lower end of the transparent measuring cylinder 21, the adjustment method of the present invention is more convenient and controllable.

[0056] In some embodiments, such as Figure 1 As shown, the frame 1 is provided with an oil receiving box 11. The upper end of the oil receiving box 11 has an opening, and the oil receiving box 11 is located below the regulating cylinder 23 so that during the process of measuring the transparency of the oil sample, the oil overflowing from the regulating cylinder 23 falls into the oil receiving box 11, thus avoiding contamination of the working environment.

[0057] Optionally, such as Figure 1 and Figure 7 As shown, the turbine oil moisture qualitative measurement device of this embodiment further includes an oil draining assembly 5, which includes an oil drain box 51 and an oil drain pipe 52 connected to the oil drain box 51. The oil drain box 51 is annular and is sleeved on the upper end of the regulating cylinder 23 so that the oil in the regulating cylinder 23 overflows into the oil drain box 51 through the opening at the upper end of the regulating cylinder 23. The oil drain pipe 52 is connected to the oil receiving box 11 so that the oil in the oil drain box 51 is discharged into the oil receiving box 11 through the oil drain pipe 52, thereby improving the regularity of oil drainage.

[0058] Furthermore, such as Figure 1 and Figure 7 As shown, the bottom wall of the oil leakage box 51 is inclined, and the connection between the oil drain pipe 52 and the oil leakage box 51 is located at the lower end of the oil leakage box 51, so that the oil in the oil leakage box 51 gathers at the connection between the oil drain pipe 52 and the oil leakage box 51, thereby improving the oil drainage effect.

[0059] In some embodiments, such as Figures 1 to 6 As shown, the sealing component 32 includes a threaded sleeve 321 and a threaded rod 322 with threaded engagement. The threaded sleeve 321 and the threaded rod 322 are located above the adjusting cylinder 23. The threaded sleeve 321 is connected to the base via a support rod. A rubber plug 323 is provided at the lower end of the threaded rod 322, and the rubber plug 323 abuts against the upper end of the adjusting cylinder 23.

[0060] It is understandable that by rotating the threaded rod 322 and causing the rubber plug 323 to move up and down, the sealing and opening of the upper end of the regulating cylinder 23 can be controlled.

[0061] Optionally, such as Figure 5 and Figure 6 As shown, the lower end face of the rubber plug 323 is provided with an annular groove 3231 that matches the adjusting cylinder 23. The upper end of the adjusting cylinder 23 is inserted into the annular groove 3231, and the inner wall of the annular groove 3231 contacts the inner peripheral wall of the adjusting cylinder 23, and the outer wall of the annular groove 3231 contacts the outer peripheral wall of the adjusting cylinder 23, thereby improving the sealing performance of the rubber plug 323.

[0062] Furthermore, such as Figure 1 and Figure 5 As shown, the upper end of the threaded rod 322 has a handle 324, and the distance between the handle 324 and the upper end of the transparent measuring cylinder 21 is less than the distance between the handle 324 and the lower end of the transparent measuring cylinder 21.

[0063] It is understandable that by setting a handle 324 on the threaded rod 322, and with the handle 324 located in the upper middle part of the entire device, the operator can manually control the state of the upper opening of the adjusting cylinder 23 during the process of measuring the transparency of the oil sample.

[0064] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0065] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0067] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0068] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0069] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A device for qualitatively measuring moisture content in turbine oil, characterized in that, include: Frame; A sampling assembly is connected to the frame. The sampling assembly includes a transparent measuring cylinder, a connecting tube, and an adjusting cylinder. The transparent measuring cylinder is connected to the adjusting cylinder via the connecting tube. The transparent measuring cylinder, the connecting tube, and the adjusting cylinder together form a generally U-shaped communicating vessel, so that the oil injected into the transparent measuring cylinder flows into the adjusting cylinder through the connecting tube. The lower end of the transparent measuring cylinder is flush with the upper end of the adjusting cylinder. The transparent measuring cylinder has an inspection element located at the lower end of the transparent measuring cylinder. A sealing assembly, comprising a sealing cap and a sealing member, the sealing cap being connected to the lower end of the regulating cylinder to seal the opening at the lower end of the regulating cylinder, and the sealing member being movably connected to the upper end of the regulating cylinder to open or close the opening at the upper end of the regulating cylinder by moving the sealing member. A detection component is connected to the frame. The detection component includes a lux meter and an illumination lamp. The lux meter and the illumination lamp are arranged opposite each other on the periphery of the transparent measuring cylinder so that the light emitted by the illumination lamp passes through the transparent measuring cylinder and illuminates the lux meter. The sealing component includes a threaded sleeve and a threaded rod with threaded engagement. The threaded sleeve is connected to the frame body, and the lower end of the threaded rod is provided with a rubber plug, which abuts against the upper end of the adjusting cylinder. The rubber plug is provided with an annular groove, the upper end of the adjusting cylinder is inserted into the annular groove, and the inner wall of the annular groove is in contact with the inner peripheral wall of the adjusting cylinder, and the outer wall of the annular groove is in contact with the outer peripheral wall of the adjusting cylinder. The upper end of the threaded rod has a handle, and the distance between the handle and the upper end of the transparent measuring cylinder is less than the distance between the handle and the lower end of the transparent measuring cylinder.

2. The device for qualitative measurement of moisture in turbine oil according to claim 1, characterized in that, The connecting pipe is inclined, and the first end of the connecting pipe is connected to the opening at the lower end of the transparent measuring cylinder. The peripheral wall of the adjusting cylinder is provided with an oil inlet adjacent to the lower end of the adjusting cylinder, and the second end of the connecting pipe is connected to the oil inlet.

3. The qualitative measuring device for moisture content in turbine oil according to claim 2, characterized in that, The angle between the central axis of the connecting pipe and the central axis of the adjusting cylinder is greater than or equal to 45° and less than or equal to 90°.

4. The device for qualitative measurement of moisture in turbine oil according to claim 2, characterized in that, The cross-sectional area of ​​the connecting pipe gradually increases from the first end of the connecting pipe toward the second end of the connecting pipe.

5. The device for qualitative measurement of moisture in turbine oil according to claim 1, characterized in that, The frame is equipped with an oil receiving box, which has an opening at its upper end and is located below the adjusting cylinder.

6. The qualitative measuring device for moisture content in turbine oil according to claim 5, characterized in that, It also includes an oil drain assembly, which includes an oil drain box and an oil drain pipe connected to the oil drain box. The oil drain box is annular and is fitted onto the upper end of the regulating cylinder so that the oil in the regulating cylinder overflows into the oil drain box through the opening at the upper end of the regulating cylinder. The oil drain pipe is connected to the oil receiving box so that the oil in the oil drain box is drained into the oil receiving box through the oil drain pipe.

7. The qualitative measuring device for moisture content in turbine oil according to claim 6, characterized in that, The bottom wall of the oil leak box is inclined, and the connection between the oil drain pipe and the oil leak box is located at the lower end of the oil leak box, so that the oil in the oil leak box collects at the connection between the oil drain pipe and the oil leak box.

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