Detection device for kinematic viscosity of oil product

Abstract

The utility model relates to the field of oil product kinematic viscosity detection, in particular to an oil product kinematic viscosity detection device which comprises a rotatable supporting plate and a measuring pipe group arranged on the supporting plate, and the measuring pipe group comprises at least two transparent measuring pipes arranged side by side. The measuring pipe comprises a pipe diameter, an oil storage cavity arranged at the end of the pipe diameter and an oil injection pipe opening communicated with the oil storage cavity. The at least two measuring tubes comprise a to-be-measured tube and a comparison tube, the to-be-measured tube is used for containing to-be-measured oil products with unknown kinematic viscosity, and the comparison tube is used for containing oil products with known kinematic viscosity and similar to the to-be-measured oil products. The rapid determination device provided by the utility model can be used for rapidly guiding field application and accurate measurement in a laboratory in the aspect of determining the kinematic viscosity of an oil product, and can be used for rapidly determining the kinematic viscosity value of the oil product through a designed simple oil determination comparison device, so that the target of determining the type of the oil product is achieved.

Description

Technical Field

[0001] The utility model relates to the field of oil product kinematic viscosity detection, in particular to a device for detecting the kinematic viscosity of oil products. Background Art

[0002] The oil type is determined by the kinematic viscosity of the oil, such as the kinematic viscosity of 32# oil is 32mm 2 / s, the kinematic viscosity of 46# oil is about 46mm 2 / s. In many sites where oil products are used, there is no need to accurately measure the oil viscosity value. Only a rough and quick judgment of the oil number is needed to determine whether the oil can be used. In petrochemical laboratories with fixed professional instruments, for blind samples of unknown viscosity, a rough judgment of the viscosity is also required to decide on the selection of a capillary of corresponding thickness for precise measurement. For example, when testing the kinematic viscosity of oil products in the laboratory, it is necessary to select an appropriate "viscosity tube (coefficient)" for measurement based on the viscosity of the oil product. In this way, under the conditions of appropriate coefficient and measurement time, the result will be most accurate.

[0003] However, for an unknown oil product being tested, since its viscosity is unknown, the only way to determine its viscosity is through simple shaking and empirical observation, and then proceed to the next step of selecting a tube. However, this judgment method sometimes requires a certain amount of experience and can also have significant errors. This can lead to inaccurate initial viscosity judgments, which can lead to inappropriate tube selection (coefficients), ultimately resulting in inaccurate measurement time and even the final kinematic viscosity measurement results. Based on this result, reselecting tubes and retesting will inevitably waste time and even reduce efficiency.

[0004] In view of this, if there is a device that can make a "quick" and relatively accurate initial judgment on the "viscosity" of an unknown oil at the beginning of measurement, then this will provide strong help for subsequent work. Summary of the Invention

[0005] According to the above-mentioned prior art, whether at the use site or in the oil testing laboratory, there is an urgent need for a simple oil viscosity measuring device that can quickly determine the kinematic viscosity of the oil.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a device for detecting the kinematic viscosity of an oil product, comprising a rotatable support plate and a measuring tube group arranged on the support plate, wherein the measuring tube group includes at least two transparent measuring tubes arranged side by side, and the measuring tubes include a tube diameter, an oil storage cavity arranged at the end of the tube diameter, and an oil filling pipe mouth connected to the oil storage cavity; at least two of the measuring tubes include a tube to be tested and a comparison tube, the tube to be tested is used to hold an oil product to be tested with an unknown kinematic viscosity, and the comparison tube is used to hold an oil product of the same type as the oil product to be tested with a known kinematic viscosity.

[0007] Furthermore, the oil storage chamber is a spherical structure, the oil storage chamber is connected to the pipe diameter and the oil injection pipe mouth, the spherical center of the oil storage chamber, the axis of the pipe diameter and the axis of the oil injection pipe mouth are in the same vertical plane, and the angle between the oil injection pipe mouth and the pipe diameter is an acute angle.

[0008] Furthermore, the angle between the oil filling pipe opening and the pipe diameter is 45°.

[0009] Furthermore, the oil filling pipe mouth adopts a funnel-shaped structure, with a large opening at the upper end and a small opening at the lower end connected to the oil storage chamber.

[0010] Furthermore, an oil storage cavity and an oil injection nozzle are respectively provided at both ends of the pipe diameter, and the oil storage cavity and the oil injection nozzle at both ends of the pipe diameter are symmetrically arranged.

[0011] Furthermore, the measuring tube is fixed on the supporting plate by a clamping device, and the clamping device is clamped on the diameter of the measuring tube.

[0012] Furthermore, the clamping device is detachably connected to the support plate, and the cross-section of the clamping device is a C-shaped structure with the opening facing upward. The clamping claws on both sides clamp the diameter of the measuring tube, and a space for accommodating the diameter of the tube is formed between the clamping claws on both sides; each measuring tube is fixed by two clamping devices, and the two clamping devices are clamped at both ends of the tube diameter.

[0013] Furthermore, the detection device also includes a base and a base bracket, the base bracket is fixed on the base, the support plate is hinged to the base bracket through a pin shaft, the support plate rotates around the pin shaft as the axis, and the axis of the pipe diameter is perpendicular to the pin shaft.

[0014] Furthermore, the measuring tube set includes three or four measuring tubes, one of which is a tube to be measured and the others are comparison tubes.

[0015] Using the detection method of the above-mentioned detection device, all oil samples are placed in the same temperature environment to ensure the uniformity of the sample temperature. The oil to be tested with unknown kinematic viscosity is injected into the test tube, and different oils with known kinematic viscosities are injected into the remaining comparison tubes. The liquid levels in all measuring tubes are kept at the same height. The support plate is flipped over, and the flow speed and flow process of the oil in the test tube and the comparison tube are observed to determine the range and interval of the kinematic viscosity of the oil to be tested.

[0016] Furthermore, the tilt angle of the support plate is controlled by manually flipping the support plate, thereby controlling the flow rate of the oil in the measuring tube; by flipping the support plate to the initial position for reset, and then controlling the tilt angle of the support plate, multiple measurements are performed at different flow rates.

[0017] The beneficial effects of the present invention are as follows: the rapid measuring device provided by the present invention can not only quickly guide on-site applications but also guide precise laboratory measurements in determining the kinematic viscosity of oil products. By means of the designed simple oil measuring comparison device, the kinematic viscosity value of the oil can be quickly determined, thereby achieving the goal of determining the oil model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of an oil product kinematic viscosity detection device according to the present invention;

[0019] Figure 2 Schematic diagram of the measuring tube structure;

[0020] Figure 3 This is the state diagram of the initial oil level in the measuring tube;

[0021] Figure 4 This is a diagram showing the flow process of oil in the measuring tube during measurement;

[0022] Figure: 1, support plate, 2, measuring tube, 3, tube diameter, 4, oil storage chamber, 5, oil filling nozzle, 6, clamping device, 7, base, 8, base bracket, 9, pin;

[0023] A. Known oil, B. Unknown oil. DETAILED DESCRIPTION

[0024] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] See attached Figure 1-4The oil container 2 is a container 2 which is fixed to the container 2 so that the container 2 can be easily opened and closed by the user. The container 2 is a container 2 which is fixed to the container 2 so that the user can easily open the container 2.

[0026] Preferably, the angle between the oil filling pipe opening 5 and the pipe diameter 3 is 45°.

[0027] Furthermore, the oil filling pipe opening 5 adopts a funnel-shaped structure, with a large opening at the upper end and a small opening at the lower end connected to the oil storage chamber 4, which is convenient for oil filling.

[0028] Furthermore, the measuring tube 2 is secured to the support plate 1 via a clamping device 6, which is detachably connected to the support plate 1 and clamped onto the measuring tube's diameter 3. The clamping device 6 has a C-shaped cross-section with its opening facing upward, with two jaws clamping onto the measuring tube's diameter 3. A space is formed between the two jaws to accommodate the diameter 3. Each measuring tube 2 is secured by two clamping devices 6, which clamp onto both ends of the diameter 3.

[0029] Based on the above technical solution, the clamping device 6 can be fixed to the support plate 1 by magnetic attraction or bolt connection, which is convenient for connection or removal with the support plate 1, and the number of measuring tubes in the measuring tube group can be increased or decreased according to actual conditions. The clamping device 6 is a C-shaped structure, and the closing design at the opening makes the opening have a certain deformation amount, thereby increasing the clamping force and preventing the position of the measuring tube from moving when the support plate 1 is flipped.

[0030] Furthermore, the detection device also includes a base 7 and a base bracket 8, the base bracket 8 is fixed on the base 7, the support plate 1 is hinged to the base bracket 8 through a pin shaft 9, the support plate 1 rotates around the pin shaft 9 as the axis, and the axis of the pipe diameter 3 is perpendicular to the pin shaft 9.

[0031] Based on the above technical solution, the support structure of this device controls the tilt angle and maintains the tilted state through manual flipping. Due to the small overall structure of this device, the advantages of manual control are simple structure, convenient operation, easy angle adjustment, and high maneuverability. If the overall device design is larger and has more measuring tubes, a rotating bracket can be installed on the base bracket, and several slots in different positions can be designed on the bottom of the support plate. The rotating bracket and the slots cooperate to support the support plate at different tilt angles.

[0032] Using the detection method of the above-mentioned detection device, all oil samples are placed in the same temperature environment to ensure the uniformity of sample temperature. The test tube is filled with an oil of unknown kinematic viscosity, and the remaining comparison tubes are filled with different oils of known kinematic viscosity. The liquid levels in all measuring tubes 2 are maintained at the same height. The support plate 1 is manually flipped to observe the flow rate and flow process of the oil in the test tube and the comparison tube to determine the kinematic viscosity range and interval of the test oil. By manually flipping the support plate, the tilt angle of the support plate is controlled, thereby controlling the flow rate of the oil in the measuring tube. The support plate is reset by flipping it to its initial position and then controlling its tilt angle to perform multiple measurements at different flow rates.

[0033] Based on the specific structure of this device, the following is described:

[0034] <1> .principle

[0035] Since this device is a device for quickly determining the viscosity range of unknown oil products, and does not need to provide accurate authoritative values, the measurement and detection principle of this device adopts a "relative" comparison principle.

[0036] That is, during the measurement, several oils with known viscosity values ​​are used to quickly determine the range and interval of the viscosity of the unknown oil being measured through their "relative flow rate" and "position" when all measurement conditions are almost the same.

[0037] <2> .Device structure

[0038] 1. According to the measurement method and principle of "kinematic viscosity" in the national standard, a unique capillary measuring tube is also designed in this device. Figure 2 .

[0039] 2. The middle diameter 3 of the capillary tube can be slightly thicker than the capillary tube used to measure kinematic viscosity in a normal laboratory. The oil storage chamber 4 and the oil injection nozzle 5 on both sides are made into a symmetrical structure at both ends. The oil injection nozzle 5 forms a certain angle (about 45°) with the tube diameter 3.

[0040] 3. The capillary measuring tubes mentioned above need to be made into multiple groups; that is, the diameters and flow coefficients of the several measuring tubes in the same group should have a certain approximation and error range; this can ensure that the measurement results are comparable.

[0041] 4. The measuring tube groups are placed side by side on a reversible support plate 1 through a clamping device 6 that is easy to disassemble and assemble; the support plate 1 is placed on a base bracket 8 through a pin 9.

[0042] <3> .Operation process

[0043] In the above-mentioned measuring device, among the several measuring tubes arranged side by side, except for one (the tube to be tested) which is filled with the oil of unknown viscosity to be tested, the remaining measuring tubes (the comparison tubes) are filled with several known oils of different viscosities.

[0044] In this way, under the conditions of the same pipe diameter, the same temperature, the same inclination angle and starting time, the range of its kinematic viscosity can be indirectly determined by the flow rate between the unknown oil and these known oils.

[0045] The specific operation process and steps are as follows:

[0046] 1. First, tilt the reversible support plate 1 in the above device to one side; and inject oils of known viscosity and unknown viscosity into the measuring tube in turn; and keep the liquid levels at the same height, such as Figure 3 shown.

[0047] 2. Although the above-mentioned different oil products do not need to be operated at a specific temperature (the temperature in the same environment is sufficient), since the working temperature and the temperature of the oil products to be tested are collected from a certain working environment, they may have a large difference from the temperature in the measurement environment. Therefore, these oil products also need to ensure that they have a certain constant temperature time (about 15 minutes) in the same measurement environment; that is, to ensure that these samples have temperature consistency.

[0048] 3. Once the above conditions are met, you can perform the following test operations.

[0049] At this time, the support plate 1 can be manually turned over to observe the flow speed and flow process of each oil product in the measuring tube 2.

[0050] Here, different inclination angles can be used according to the different viscosities and flow rates of various oils; that is, if the viscosity is too low, the flow rate is too fast, or the relative pipe diameter is slightly larger, then a smaller inclination angle can be used, otherwise, a larger inclination angle can be used.

[0051] In short, the relative position difference between the unknown viscosity oil and the known viscosity oil in the pipe diameter during the flow process can be read in an easy-to-observe way, thereby indirectly judging the viscosity range and interval.

[0052] 4. If the angle is not properly controlled during the above flipping operation and the position difference cannot be clearly observed, the flip tray can be flipped back to its original position and the above operation can be repeated. This process can be repeated and the oil will not overflow.

[0053] 5. If the coefficient difference between the above-mentioned measuring tube groups is very small and the various temperature conditions are also good, the specific viscosity value can be converted based on the relative flow position difference between it and several oils of different known viscosities; and it should also have a certain degree of accuracy.

[0054] 6. In the above-mentioned measuring tube set, the first few oils with known viscosities do not need to be removed for cleaning after a measurement is completed, and can continue to be used. In this case, only the unknown oil test tubes need to be removed and cleaned separately. This can not only reduce unnecessary work, but also provide quick preparation time for the next test.

[0055] <4> Feasibility analysis

[0056] The above measurement method is basically the same as the measurement method and principle of kinematic viscosity in terms of its overall principle. In addition, several oils with known viscosities are added and compared. Therefore, this relative conclusion should also have a certain degree of authenticity.

[0057] Among them, the most important influencing factor may be that different oils have different viscosity characteristic curves under different temperature conditions; and the basic measurement temperature of general oils is mostly at 40°C. Therefore, it can be said that as long as the above-mentioned measuring device is not used in "extremely cold" temperatures, then the use of this "relative" measurement method should not have much influencing factors.

[0058] In addition, regarding the processing technology and production of the above-mentioned measuring tube itself, a split combined structure can also be adopted. That is, the middle diameter part can be cut from the same hollow glass tube; the two end parts can be made separately and combined together. In this way, the coefficient consistency between the tube groups can be guaranteed as much as possible, thereby ensuring the accuracy of the measurement results.

[0059] The advantage of this device is that it can not only provide an estimated judgment on viscosity before formal measurement, but also provide a rapid viscosity test without measurement conditions at the oil use site.

[0060] It should be noted that the parts not described in detail in the present invention are prior art.

[0061] 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, and do not indicate or imply 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 a limitation to the present invention.

[0062] 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 specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0063] In this utility model, 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; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0064] 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 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.

[0065] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0066] The above examples are merely preferred embodiments of the present invention. Obviously, the present invention is not limited to the above examples and is subject to numerous variations. Any variations that can be directly derived or conceived by a person skilled in the art from the disclosure of the present invention should be considered within the scope of protection of the present invention.

Claims

1. A device for detecting the kinematic viscosity of an oil product, characterized in that: The apparatus comprises a rotatable supporting plate and a measuring tube group arranged on the supporting plate, wherein the measuring tube group comprises at least two transparent measuring tubes arranged side by side, wherein the measuring tubes comprise a tube diameter, an oil storage cavity arranged at the end of the tube diameter, and an oil filling pipe opening connected to the oil storage cavity; at least two of the measuring tubes comprise a tube to be tested and a comparison tube, wherein the tube to be tested is used to hold an oil product to be tested with unknown kinematic viscosity, and the comparison tube is used to hold an oil product of the same type as the oil product to be tested with known kinematic viscosity.

2. The device for detecting kinematic viscosity of oil according to claim 1, characterized in that: The oil storage cavity is a spherical structure, the oil storage cavity is connected to the pipe diameter and the oil injection pipe mouth, the spherical center of the oil storage cavity, the axis of the pipe diameter and the axis of the oil injection pipe mouth are in the same vertical plane, and the angle between the oil injection pipe mouth and the pipe diameter is an acute angle.

3. The device for detecting kinematic viscosity of oil according to claim 2, characterized in that: The angle between the oil filling pipe opening and the pipe diameter is 45°.

4. The device for detecting kinematic viscosity of oil according to any one of claims 1 to 3, characterized in that: An oil storage cavity and an oil injection pipe opening are respectively provided at both ends of the pipe diameter, and the oil storage cavity and the oil injection pipe opening at both ends of the pipe diameter are symmetrically arranged.

5. The device for detecting kinematic viscosity of oil according to claim 1, characterized in that: The measuring tube is fixed on the supporting plate by a clamping device, and the clamping device is clamped on the diameter of the measuring tube.

6. The device for detecting kinematic viscosity of oil according to claim 5, characterized in that: The clamping device is detachably connected to the support plate. The cross-section of the clamping device is a C-shaped structure with the opening upward. The clamping claws on both sides clamp the pipe diameter of the measuring tube, and a space for accommodating the pipe diameter is formed between the clamping claws on both sides. Each measuring tube is fixed by two clamping devices, and the two clamping devices are clamped at both ends of the pipe diameter.

7. The device for detecting kinematic viscosity of oil according to claim 1, characterized in that: It also includes a base and a base bracket, the base bracket is fixed on the base, the support plate is hinged to the base bracket through a pin shaft, the support plate rotates around the pin shaft as the axis, and the axis of the pipe diameter is perpendicular to the pin shaft.

8. The device for detecting kinematic viscosity of oil according to claim 1, characterized in that: The measuring tube set includes three or four measuring tubes, one of which is a tube to be measured and the others are comparison tubes.

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