Lubricating oil flow measuring standard device

Abstract

This utility model belongs to the field of lubricating oil flow rate detection technology and discloses a standard device for measuring lubricating oil flow rate. The lubricating oil flow rate measurement standard device includes an oil reservoir, a detection element, and a thermal management mechanism. The oil reservoir has a storage chamber for storing the oil to be tested. The inlet of the detection element is connected to the outlet of the oil reservoir, and the outlet of the detection element is connected to the return port of the oil reservoir. The detection element is used to detect the flow rate of the oil to be tested. The thermal management mechanism is installed on the oil reservoir and includes a heating component and a cooling component. The heating component heats the oil to be tested, and the cooling component cools the oil to be tested. This device can effectively control the temperature and viscosity of the lubricating oil, reduce the influence of temperature and viscosity on the measurement results, and achieve accurate measurement of the lubricating oil flow rate.

Description

Technical Field

[0001] This utility model relates to the field of lubricating oil flow detection technology, and in particular to a standard device for measuring lubricating oil flow. Background Technology

[0002] Lubricating oil has a wide range of applications in modern machinery, aviation, shipbuilding, military, medicine, agriculture, and other industries. The traceability of its flow rate relies on a continuous traceability chain using standard devices to trace the flow back to a measurement benchmark. Because lubricating oil is a fluid, it is in a constant state of flow and does not easily reach stability. The fluid itself cannot serve as a standard entity for value transfer; value transfer can only be achieved through flow rate standard devices. Specifically, changes in physical properties significantly affect flow measurement; differences in temperature and viscosity can lead to inaccurate lubricating oil flow rate measurements. However, many practical operating conditions require precise measurement of lubricating oil flow rate. Since general flow meters are typically designed for water measurement, the accuracy of lubricating oil flow rate measurement often exceeds the traceability capabilities of these devices. For example, flow meters may develop measurement errors after a period of use, and the temperature and viscosity of the lubricating oil entering the flow meter each time cannot be guaranteed, resulting in inaccurate measurement results.

[0003] Therefore, there is an urgent need for a standard device for measuring lubricating oil flow rate to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a standard device for measuring lubricating oil flow rate, which can effectively control the temperature and viscosity of lubricating oil, reduce the influence of temperature and viscosity on the measurement results, and achieve accurate measurement of lubricating oil flow rate.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A standard device for measuring lubricating oil flow rate includes:

[0007] An oil storage tank, wherein the oil storage tank is equipped with a storage chamber, and the oil to be tested is stored in the storage chamber;

[0008] The detection element has its inlet connected to the oil outlet of the oil storage tank and its outlet connected to the oil return port of the oil storage tank. The detection element is used to detect the flow rate of the oil to be tested.

[0009] A thermal management system is provided on the oil storage tank. The thermal management system includes a heating component and a cooling component. The heating component is used to heat the oil to be tested, and the cooling component is used to cool the oil to be tested.

[0010] Optionally, the heating assembly includes:

[0011] An oil bath sealed tank is filled with heating oil, and an oil storage tank is disposed inside the oil bath sealed tank and immersed in the heating oil.

[0012] A heating element is disposed on the outer peripheral wall of the oil bath sealed tank. The heating element is used to heat the heating oil to heat the oil to be tested in the oil storage tank.

[0013] Optionally, there are multiple heating elements distributed on the outer peripheral wall of the oil bath sealed tank.

[0014] Optionally, the outer peripheral wall of the aforementioned oil bath sealed tank is also provided with a heat insulation layer.

[0015] Optionally, the cooling assembly includes:

[0016] A liquid supply assembly, which is used to supply the cooled coolant;

[0017] The cooling channel is connected to the liquid supply component and is located inside the oil tank, separated from the storage chamber. Coolant flows through the cooling channel to cool the oil to be tested.

[0018] Optionally, the aforementioned testing component is a volume tube.

[0019] Optionally, the outer peripheral wall of the oil tank is provided with a plurality of first temperature detection elements, which are used to detect the temperature at corresponding positions on the outer peripheral wall of the oil tank.

[0020] Optionally, it further includes a second temperature sensing element, which is disposed at the inlet of the aforementioned sensing element and is used to detect the temperature of the oil to be tested at the inlet of the aforementioned sensing element; and / or,

[0021] It also includes a viscosity detection element, which is disposed at the inlet of the detection element and is used to detect the viscosity of the oil to be tested at the inlet of the detection element.

[0022] Optionally, it also includes a retesting component, which is disposed between the outlet of the detection element and the return port of the oil reservoir, and is used to test the oil to be tested.

[0023] Optionally, the above-mentioned retesting components include:

[0024] An oil storage container, the inlet of which is connected to the outlet of the detection element, and the outlet of which is connected to the return port of the oil tank, wherein the oil storage container is used to temporarily store the oil to be tested after it has passed the detection element.

[0025] An electronic scale is installed under the oil storage container and is used to detect the weight of the oil to be tested in the oil storage container.

[0026] The beneficial effects of this utility model are:

[0027] This invention provides a standard device for measuring the flow rate of lubricating oil. By incorporating a thermal management mechanism to heat or cool the oil to be tested, it ensures the oil meets a set temperature. At a constant temperature, the oil's viscosity also remains relatively stable, effectively controlling both temperature and viscosity. The flow rate of the oil at the set temperature and viscosity can then be measured using a detection element. Since the temperature and viscosity of the oil meet the set requirements during the testing process, exhibiting high stability, accurate flow rate measurements can be obtained under stable temperature and viscosity conditions. This reduces the influence of temperature and viscosity on the measurement results, improving the accuracy of the flow rate measurement. Furthermore, the inlet of the detection element is connected to the outlet of the oil reservoir, and the outlet is connected to the return port of the oil reservoir, enabling the oil to circulate and be reused instead of being wasted, thus improving the utilization rate of the oil. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the lubricating oil flow measurement standard device provided in a specific embodiment of this utility model. Figure 1 ;

[0029] Figure 2 This is a schematic diagram of the structure of the lubricating oil flow measurement standard device provided in a specific embodiment of this utility model. Figure 2 ;

[0030] Figure 3 This is a schematic diagram of the structure of the detection component provided in a specific embodiment of this utility model;

[0031] Figure 4 This is a cross-sectional view of the heating assembly provided in a specific embodiment of this utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the cooling assembly provided in a specific embodiment of this utility model;

[0033] Figure 6 This is a cross-sectional view of the oil storage tank provided in a specific embodiment of this utility model.

[0034] In the picture:

[0035] 10. Oil storage tank; 101. Storage room; 102. Oil to be tested;

[0036] 20. Inspection component; 21. Volume tube; 22. Piston rod; 23. Drive component; 24. Grating ruler;

[0037] 301. Heating oil; 302. Coolant; 31. Heating assembly; 311. Oil bath sealed tank; 312. Heating element; 32. Cooling assembly; 321. Liquid supply assembly; 3211. Liquid storage tank; 3212. Second pump; 322. Cooling passage;

[0038] 40. First pump; 50. First temperature sensor; 60. Second temperature sensor; 70. Viscosity sensor;

[0039] 80. Retesting component; 81. Oil storage container; 82. Electronic scale; 83. Third pump. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0041] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," "fixed," and "abutting" 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0044] This embodiment provides a standard device for measuring the flow rate of lubricating oil, used to detect the flow rate of lubricating oil.

[0045] It should be noted that the oil to be tested 102 in this embodiment is lubricating oil. Of course, in other embodiments, the oil to be tested 102 may be other oils, and no specific limitation is made here.

[0046] Please refer to Figure 1 and Figure 2 Specifically, the lubricating oil flow measurement standard device includes an oil reservoir 10, a detection element 20, and a thermal management mechanism. The oil reservoir 10 is provided with a storage chamber 101, which stores the oil 102 to be tested. The inlet of the detection element 20 is connected to the oil outlet of the oil reservoir 10, and the outlet of the detection element 20 is connected to the oil return port of the oil reservoir 10. The detection element 20 is used to detect the flow rate of the oil 102 to be tested. The thermal management mechanism is installed on the oil reservoir 10 and includes a heating component 31 and a cooling component 32. The heating component 31 is used to heat the oil 102 to be tested, and the cooling component 32 is used to cool the oil 102 to be tested.

[0047] In use, the oil to be tested 102 is heated or cooled by a thermal management mechanism to meet the set temperature. When the temperature is constant, its viscosity will not change. Then, the oil to be tested 102 with the set temperature and viscosity is supplied from the oil storage tank 10 to the detection element 20. The flow rate of the oil to be tested 102 with the set temperature and viscosity can be detected by the detection element 20. Since its temperature and viscosity meet the set requirements and have high stability, the flow rate measurement result of the oil to be tested 102 under stable temperature and viscosity conditions can be obtained.

[0048] The lubricating oil flow measurement standard device in this embodiment heats or cools the oil 102 to be tested using a thermal management mechanism to ensure it meets a set temperature. At a constant temperature, the viscosity of the oil is also relatively stable, effectively controlling the temperature and viscosity of the lubricating oil. The flow rate of the oil 102 at the set temperature and viscosity can then be measured by the detection element 20. Since the temperature and viscosity of the oil 102 meet the set requirements during the testing process, exhibiting high stability, accurate flow rate measurement results can be obtained under stable temperature and viscosity conditions, reducing the influence of temperature and viscosity on the measurement results and improving the accuracy of the flow rate measurement. Furthermore, the inlet of the detection element 20 is connected to the outlet of the oil reservoir 10, and the outlet of the detection element 20 is connected to the return port of the oil reservoir 10, enabling the circulation of the oil 102. This means the oil 102 can be reused instead of being directly wasted, improving the utilization rate of the oil 102.

[0049] Specifically, the inlet of the detection component 20 is connected to the outlet of the oil storage tank 10, and the outlet of the detection component 20 is connected to the return port of the oil storage tank 10 through a connecting pipeline to achieve the circulation of the oil to be tested 102.

[0050] Optionally, the outer wall of the connecting pipeline is covered with a heat-insulating material layer to avoid the problem of large heat loss caused by the influence of the external ambient temperature during the transportation of the oil 102 to be tested, thereby improving the detection reliability and accuracy of the lubricating oil flow measurement standard device.

[0051] Optionally, the inlet of the detection element 20 is connected to the oil outlet of the oil storage tank 10, and the outlet of the detection element 20 is connected to the oil return port of the oil storage tank 10. It also includes a first pump 40, which is connected to a connecting pipeline that flows through the oil storage tank 10. The first pump 40 is used to provide power to supply oil from the oil storage tank 10 to the detection element 20, thereby realizing the circulation of the oil 102 to be tested.

[0052] Optionally, the oil tank 10 is equipped with a level display device to detect the level of the oil 102 to be tested within the oil tank 10, thereby determining the quantity of the oil 102 to be tested. Specifically, the level display device is a photoelectric level sensor, which can detect the level of the oil 102 to be tested. Of course, in other embodiments, the level display device can also be an ultrasonic level sensor, a capacitive level sensor, a float-type level sensor, or other level display devices, all of which can detect the level of the oil 102 to be tested.

[0053] Please refer to Figure 3Specifically, the detection element 20 is a volume tube, which features continuous liquid flow, high precision, high stability, convenience, and safety. It is suitable for online verification and closed-loop pipeline metering standards, and is especially suitable for operational scenarios requiring long-term stable operation. Of course, in other embodiments, the detection element 20 can also be other flow detection structures, which are not specifically limited here.

[0054] More specifically, the detection component 20 includes a volume tube 21, a piston rod 22, a drive component 23, and a grating ruler 24. The two ends of the volume tube 21 are connected to the oil outlet and return pipe of the oil reservoir 10, respectively, to contain the oil to be tested 102. One end of the piston rod 22 is equipped with a piston head, which is slidably and sealed within the volume tube 21 to push the oil to be tested 102. The output end of the drive component 23 is connected to the piston rod 22 to drive the piston rod 22 to reciprocate linearly along the volume tube 21. The grating ruler 24 is used to measure the movement distance of the piston rod 22. During operation, the first pump 40 supplies a certain amount of the oil to be tested 102 into the volume tube 21. Then, the drive component 23 drives the piston rod 22 to squeeze the oil to be tested 102 until it is completely withdrawn from the volume tube 21. At this time, the grating ruler 24 records the displacement of the piston rod 22 and the pushing time. The fluid volume can be obtained by measuring the cross-sectional area of ​​the volume tube 21 and the displacement of the piston rod 22. Then, by dividing the fluid volume value by the corresponding pushing time, the reference flow rate value of the oil 102 to be tested can be obtained.

[0055] It is understandable that the supply of the oil to be tested 102 may not completely fill the volume tube 21, but it fills the space between the piston head and the outlet of the volume tube 21. Therefore, the displacement of the piston rod 22 and the cross-sectional area of ​​the volume tube 21 are the fluid volume of the oil to be tested 102 in the volume tube 21.

[0056] More specifically, the testing component 20 also includes a lifting valve and a return mechanism. The lifting valve is located inside the volume tube 21. After the lifting valve is opened, it can release pressure so that the piston rod 22 can be pulled back to the starting position under the action of the return mechanism, in preparation for the next test.

[0057] Please refer to Figure 4In this embodiment, the heating assembly 31 includes an oil bath sealed tank 311 and a heating element 312. The oil bath sealed tank 311 is filled with heating oil 301, and the oil storage tank 10 is disposed inside the oil bath sealed tank 311 and immersed in the heating oil 301. The heating element 312 is disposed on the outer peripheral wall of the oil bath sealed tank 311 and is used to heat the heating oil 301 to heat the oil to be tested 102 in the oil storage tank 10. In use, the heating element 312 heats the oil bath sealed tank 311, thereby heating the heating oil 301 inside, causing the temperature of the heating oil 301 to rise steadily, thereby achieving the heating of the oil to be tested 102 in the oil storage tank 10 immersed in the heating oil 301. Heating is achieved by an oil bath, which enables stable temperature control of the oil to be tested 102. That is, at a certain temperature of the heating element 312, heat is continuously supplied to the oil to be tested 102 after it is heated to that temperature, thus heating the oil to be tested 102. After the oil to be tested 102 is heated to that temperature, it will maintain that temperature without change, thereby improving the temperature and viscosity stability of the oil to be tested 102.

[0058] It should be noted that the heating oil 301 is made of mineral oil such as silicone oil, which has high heat transfer performance, high safety, a wide applicable temperature range, and is inexpensive and readily available. Optionally, the heating range of the heating oil 301 is from -20℃ to 200℃ to improve the application range and applicability of this lubricating oil flow measurement standard device.

[0059] Specifically, the heating element 312 is made of resistance wire, which has the advantages of convenient arrangement, good heating uniformity, fast response speed and high cost-effectiveness.

[0060] Optionally, multiple heating elements 312 are provided, and the multiple heating elements 312 are evenly distributed on the outer peripheral wall of the oil bath sealed tank 311, so as to achieve uniform heating of all positions of the oil bath sealed tank 311.

[0061] Optionally, the outer peripheral wall of the oil bath sealed tank 311 is also provided with a heat insulation layer to keep the temperature of the heating oil 301 inside the oil bath sealed tank 311 in order to reduce the influence of the external ambient temperature on the temperature of the internal heating oil 301 and improve its heating reliability.

[0062] Specifically, the outer peripheral wall of the oil tank 10 is evenly distributed with multiple first temperature detection elements 50. These first temperature detection elements 50 are used to detect the temperature at corresponding locations on the outer peripheral wall of the oil tank 10, thereby measuring the temperature of the heating oil 301 at various locations along the circumference of the oil tank 10. This facilitates determining whether the heating temperature of the heating oil 301 is uniform, and thus helps to judge the temperature uniformity of the oil 102 to be tested within the oil tank 10. Optionally, the first temperature detection elements 50 are selected from temperature sensors, which have high accuracy and stability, high response speed, and wide applicability.

[0063] Optionally, the first temperature sensing elements 50 are evenly distributed along the circumference of the oil tank 10, thereby detecting the temperature at various positions along the circumference of the oil tank 10. Further optionally, the first temperature sensing elements 50 are evenly distributed along the axial direction of the oil tank 10, which further improves the detection of temperature at various positions in the oil tank 10. Exemplarily, in this embodiment, four first temperature sensing elements 50 are provided, and the four first temperature sensing elements 50 are evenly distributed along the circumference of the oil tank 10.

[0064] Please refer to Figure 5 and Figure 6 Furthermore, the cooling assembly 32 includes a liquid supply assembly 321 and a cooling channel 322. The liquid supply assembly 321 supplies the cooled coolant 302. The cooling channel 322 is connected to the liquid supply assembly 321. Specifically, the inlet of the cooling channel 322 is connected to the outlet of the liquid supply assembly 321, and the outlet of the cooling channel 322 is connected to the return port of the liquid supply assembly 321. The cooling channel 322 is disposed within the oil storage tank 10 and is separated from the storage chamber 101. Coolant 302 flows through the cooling channel 322 for cooling the oil 102 to be tested. In use, the cooled coolant 302 can be supplied to the cooling channel 322 through the liquid supply assembly 321. Then, the coolant 302 exchanges heat with the oil 102 to be tested in the storage chamber 101, thereby achieving the cooling of the oil 102 to be tested.

[0065] It should be noted that the cooling component 32 is generally used when the oil to be tested 102 needs to be cooled down quickly. On this basis, in order to ensure the temperature stability of the oil to be tested 102, the heating component 31 also needs to be heated at this temperature so that the temperature of the oil to be tested 102 can be kept within this temperature range in the future.

[0066] Specifically, the liquid supply assembly 321 includes a liquid storage tank 3211 and a second pump 3212. The liquid storage tank 3211, the second pump 3212, and the cooling channel 322 are connected in sequence. The second pump 3212 provides power to allow the coolant 302 in the liquid storage tank 3211 to flow into the cooling channel 322. The liquid storage tank 3211 is located in the external environment to facilitate the cooling of the coolant 302.

[0067] Optionally, a cooling fan may be provided on one side of the liquid storage tank 3211 to accelerate the cooling of the coolant 302.

[0068] It is feasible to arrange the cooling channel 322 around the outer periphery of the storage chamber 101, which can increase the contact area between the cooling channel 322 and the storage chamber 101, thereby increasing the heat exchange area between the coolant 302 and the oil to be tested 102 and improving the heat exchange efficiency.

[0069] Please return to the reference. Figure 1 and Figure 2 Furthermore, the lubricating oil flow measurement standard device also includes a second temperature detection element 60, which is disposed at the inlet of the detection element 20. The second temperature detection element 60 is used to detect the temperature of the oil to be tested 102 at the inlet of the detection element 20, so as to monitor the temperature of the oil to be tested 102 and compare it with the temperature of the oil to be tested 102 in the oil storage tank 10. It can be determined whether there is a large difference that affects the detection result, thereby improving the reliability of the lubricating oil flow measurement standard device.

[0070] Optionally, the second temperature sensing element 60 is selected from a temperature sensor, which has high accuracy and stability, fast response speed and wide applicability.

[0071] Furthermore, the lubricating oil flow measurement standard device also includes a viscosity detection element 70, which is disposed at the inlet of the detection element 20. The viscosity detection element 70 is used to detect the viscosity of the oil to be tested 102 at the inlet of the detection element 20, so as to monitor the viscosity of the oil to be tested 102.

[0072] Optionally, the viscosity detection element 70 is selected from a viscosity sensor, which has high-precision measurement and stability, wide applicability, low cost and high convenience.

[0073] In this embodiment, the lubricating oil flow measurement standard device further includes a retesting component 80, which is disposed between the outlet of the detection element 20 and the return port of the oil reservoir 10. The retesting component 80 is used to test the oil 102 to be tested. The retesting component 80 can be mutually calibrated with the detection element 20, thereby enabling timely evaluation and calibration of the test results and avoiding problems.

[0074] Optionally, the retesting component 80 can be a flow detection element or a quality detection element. It is necessary to detect the amount of oil 102 flowing out of the detection element 20 and compare it with the detection result of the detection element 20.

[0075] Specifically, the retesting component 80 includes an oil storage container 81 and an electronic scale 82. The inlet of the oil storage container 81 is connected to the outlet of the detection element 20, and the outlet of the oil storage container 81 is connected to the return port of the oil tank 10. The oil storage container 81 is used to temporarily store the oil to be tested 102 after it has passed the detection element 20. The electronic scale 82 is installed below the oil storage container 81 and is used to detect the weight of the oil to be tested 102 in the oil storage container 81. In use, after the oil to be tested 102 is pushed out of the volume tube 21 by the piston rod 22, it enters the oil storage container 81. The electronic scale 82 detects the increase in weight in the oil storage container 81, and then the volume of the oil to be tested 102 can be calculated from the density of the oil to be tested 102. This volume can then be compared with the fluid volume calculated by the detection element 20, thus enabling mutual calibration between the retesting component 80 and the detection element 20.

[0076] Optionally, a third pump 83 is also provided on the connecting pipeline between the retesting component 80 and the oil storage tank 10. The third pump 83 can provide power to return the oil to be tested 102 in the oil storage container 81 to the oil storage tank 10 after the electronic scale 82 has finished testing.

[0077] To prevent the evaporation of the oil to be tested 102 in the oil storage container 81 from affecting the test results, the retesting assembly 80 may optionally include a transparent cover, which is placed over the oil storage container 81 and the electronic scale 82 to prevent evaporation.

[0078] Since the retesting component 80 is used for retesting and calibration, it is not required for every test. Furthermore, a straight-through pipeline is provided between the outlet of the testing component 20 and the return port of the oil storage tank 10. Control valves are provided in the pipeline structure between the straight-through pipeline and the outlet of the testing component 20 and the inlet of the oil storage container 81. The control valves control the opening and closing of the corresponding pipelines to realize the direct return processing or retesting of the oil 102 to be tested.

[0079] To avoid residue of the oil 102 to be tested in various pipelines, testing components 20, and oil storage containers 81, optionally, the inner walls of the connecting pipelines, the inner walls of the volume tube 21, the inner walls of the straight pipelines, and the inner walls of the pipeline structure are all treated with a smooth finish, i.e., the inner wall roughness is low, to avoid wall adhesion and affecting the measurement results. For example, the aforementioned low roughness can be obtained by using stainless steel material.

[0080] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present 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.

[0081] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A standard device for measuring lubricating oil flow rate, characterized in that, include: An oil storage tank (10) is provided with a storage chamber (101) in which oil to be tested (102) is stored. The detection element (20) has its inlet connected to the oil outlet of the oil storage tank (10) and its outlet connected to the oil return port of the oil storage tank (10). The detection element (20) is used to detect the flow rate of the oil to be tested (102). A thermal management mechanism is provided on the oil storage tank (10). The thermal management mechanism includes a heating component (31) and a cooling component (32). The heating component (31) is used to heat the oil (102) to be tested, and the cooling component (32) is used to cool the oil (102) to be tested.

2. The lubricating oil flow measurement standard device according to claim 1, characterized in that, The heating assembly (31) includes: An oil bath sealed tank (311) is filled with heating oil (301), and an oil storage tank (10) is disposed in the oil bath sealed tank (311) and immersed in the heating oil (301). Heating element (312) is disposed on the outer peripheral wall of the oil bath sealed tank (311). The heating element (312) is used to heat the heating oil (301) to heat the oil to be tested (102) in the oil storage tank (10).

3. The lubricating oil flow measurement standard device according to claim 2, characterized in that, The heating element (312) is distributed in multiple ways, and the multiple heating elements (312) are evenly distributed on the outer peripheral wall of the oil bath sealed tank (311).

4. The lubricating oil flow measurement standard device according to claim 2, characterized in that, The outer peripheral wall of the oil bath sealed tank (311) is also provided with a heat insulation layer.

5. The lubricating oil flow measurement standard device according to claim 1, characterized in that, The cooling assembly (32) includes: Liquid supply assembly (321) is used to supply cooled liquid (302). Cooling channel (322) is connected to the liquid supply assembly (321). The cooling channel (322) is located in the oil storage tank (10) and is separated from the storage chamber (101). Cooling liquid (302) flows in the cooling channel (322) to cool the oil (102) to be tested.

6. The lubricating oil flow measurement standard device according to claim 1, characterized in that, The testing component (20) is a volume tube.

7. The lubricating oil flow measurement standard device according to claim 1, characterized in that, The outer peripheral wall of the oil tank (10) is evenly distributed with a plurality of first temperature detection elements (50), which are used to detect the temperature at the corresponding position on the outer peripheral wall of the oil tank (10).

8. The lubricating oil flow measurement standard device according to claim 1, characterized in that, It also includes a second temperature detection element (60), which is disposed at the inlet of the detection element (20) and is used to detect the temperature of the oil (102) to be tested at the inlet of the detection element (20); and / or, It also includes a viscosity detection element (70), which is disposed at the inlet of the detection element (20) and is used to detect the viscosity of the oil (102) to be tested at the inlet of the detection element (20).

9. The lubricating oil flow measurement standard device according to any one of claims 1-8, characterized in that, It also includes a retesting component (80), which is disposed between the outlet of the detection element (20) and the return port of the oil storage tank (10), and the retesting component (80) is used to test the oil (102) to be tested.

10. The lubricating oil flow measurement standard device according to claim 9, characterized in that, The retesting component (80) includes: An oil storage container (81) has its inlet connected to the outlet of the detection element (20) and its outlet connected to the return port of the oil tank (10). The oil storage container (81) is used to temporarily store the oil to be tested (102) after being tested by the detection element (20). An electronic scale (82) is installed under the oil storage container (81) and is used to detect the weight of the oil (102) to be tested in the oil storage container (81).

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