CN113654949A - System and method for acquiring kinematic viscosity - Google Patents
System and method for acquiring kinematic viscosity Download PDFInfo
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- 239000011345 viscous material Substances 0.000 claims abstract description 119
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- 238000003860 storage Methods 0.000 claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 239000010802 sludge Substances 0.000 claims description 62
- 239000003921 oil Substances 0.000 claims description 42
- 238000005097 cold rolling Methods 0.000 claims description 22
- 239000010731 rolling oil Substances 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
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- 238000012545 processing Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
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- 239000003292 glue Substances 0.000 description 1
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- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
- G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
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Abstract
The invention discloses a system and a method for acquiring kinematic viscosity, which comprises the following steps: drainage device, temperature control device, time-recorder and support frame, drainage device include stock solution container and drainage pipe, stock solution container and the one end intercommunication of drainage pipe. The support frame is used for fixedly supporting the drainage device, and the liquid storage container is used for storing a target viscous substance; the temperature control device is used for enabling the temperature of the target viscous substance added into the liquid storage container to be different; the timer is used for timing the outflow time of the target viscous substances with various temperatures to obtain the outflow time corresponding to the target viscous substances with various temperatures, so as to input the outflow time into a preset model to obtain a temperature viscosity constant, and the temperature viscosity model is obtained based on the temperature viscosity constant and a preset temperature viscosity relational expression. The warm-sticking model is used for obtaining the kinematic viscosity of the target viscous substance according to the actual temperature of the target viscous substance measured in actual production, and has the characteristics of simple means and low cost.
Description
Technical Field
The invention relates to the technical field of steel rolling, in particular to a system and a method for acquiring kinematic viscosity.
Background
The sewage treatment station of the steel rolling production line is easy to generate viscous substances with complex components, the substances possibly contain a large amount of industrial impurities and waste mineral oil, belong to industrial organic hazardous wastes (code of national hazardous waste catalogue: 900-204-08), execute very strict control regulations, and need to be paid by units with related qualifications, so that the disposal cost of the hazardous wastes paid by enterprises every year exceeds 3000 ten thousand yuan, and is still rising year by year. Meanwhile, related national policies actively encourage enterprises to utilize production processes of the enterprises to carry out cooperative treatment on dangerous wastes, and emission reduction and even zero emission are realized. The steel enterprises can select a plurality of high-temperature facilities, and have natural advantages in the aspect of hazardous waste co-disposal resource conditions, and the coke oven co-disposal of viscous substances is one of the new technologies developed by the method.
Under the condition of normal temperature, the viscous substance has poor flow, and if a special high-pressure oil pump is adopted in the conveying process, the energy consumption is very high, and generally in engineering application, a common oil pump is preferred for conveying. The kinematic viscosity of the material is an important process parameter for resource engineering design of the viscous substance, but because the viscous substance with complex physical properties is difficult to directly measure the kinematic viscosity of the material, and the measuring method is complex and high in cost, the determination of the kinematic viscosity of the viscous substance by a simple and effective method becomes one of the difficulties of process design.
Disclosure of Invention
According to the system and the method for acquiring the kinematic viscosity, the complex measurement of the kinematic viscosity of the target viscous substance is converted into the simple measurement of the time required for the target viscous substance to flow out of the liquid storage container at various temperatures, and the kinematic viscosity of the target viscous substance is acquired.
In a first aspect, the present invention provides the following technical solutions through an embodiment of the present invention:
a system for obtaining kinematic viscosity, comprising: the drainage device comprises a liquid storage container and a liquid guide pipe, and the liquid storage container is communicated with one end of the liquid guide pipe; the support frame is used for fixedly supporting the drainage device, and the liquid storage container is used for storing a target viscous substance; the temperature control device is used for enabling the temperature of the target viscous substance added into the liquid storage container to be different; the target viscous substance in the liquid storage container flows into the liquid guide pipe under the action of gravity and flows out from the other end of the liquid guide pipe; the timer is used for timing the outflow time of the target viscous substance with various temperatures to obtain the outflow time corresponding to the target viscous substance with various temperatures, so as to input a preset model to obtain a temperature viscosity constant, and obtain a warm-sticking model based on the temperature viscosity constant and a preset warm-sticking relational expression, wherein the warm-sticking model is used for obtaining the kinematic viscosity of the target viscous substance according to the actual temperature of the target viscous substance measured in actual production.
Preferably, the system further comprises: the bottom valve is arranged at a liquid outlet of the liquid storage container, communicated with the liquid guide pipe, and used for controlling the outflow of target viscous substances in the liquid storage container.
Preferably, the temperature control device is a water bath device.
Preferably, the liquid storage container is a conical container with openings at two ends, the opening at the large end of the conical container is used for adding the target viscous substance, and the opening at the small end of the conical container is communicated with one end of the liquid guide pipe.
Preferably, the system further comprises a recovery container for recovering the target viscous substance flowing out of the liquid guiding tube.
Preferably, the system further comprises: a central control device for: inputting the temperatures and the corresponding outflow time into a preset model lglglglct ═ a-BlgT to obtain a temperature viscosity constant, and inputting the temperature viscosity constant into a preset temperature viscosity relational expression lggy ═ a-BlgT to obtain the temperature viscosity model; wherein Y is the kinematic viscosity of the target viscous substance, T is the outflow time required by the target viscous substance to flow out of the liquid storage container, T is the temperature of the target viscous substance, A and B are both temperature viscosity constants, and C is the outflow time viscosity constant.
In a second aspect, the present invention provides the following technical solutions through an embodiment of the present invention:
a method for obtaining kinematic viscosity, applied to the system of any one of the preceding first aspects, the method comprising: obtaining outflow time corresponding to target viscous substances at various temperatures; inputting the multiple temperatures and the corresponding outflow time into a preset model to obtain a temperature viscosity constant; and obtaining a warm-sticking model based on the temperature-viscosity constant and a preset warm-sticking relational expression, wherein the warm-sticking model is used for obtaining the kinematic viscosity of the target viscous substance according to the actual temperature of the target viscous substance measured in actual production.
Preferably, the step of obtaining the outflow time corresponding to the target viscous substance at multiple temperatures includes: heating a plurality of cold-rolled oil sludge with the same amount according to a preset temperature step to obtain quantitative cold-rolled oil sludge at different temperatures; and controlling the cold rolling oil sludge to flow out of the liquid storage container aiming at the quantitative cold rolling oil sludge at each temperature, measuring the time required for the cold rolling oil sludge to flow out of the liquid storage container at the corresponding temperature, and obtaining the outflow time corresponding to the cold rolling oil sludge at various temperatures.
Preferably, the multiple temperatures and the corresponding outflow time are input into a preset model to obtain a temperature viscosity constant; obtaining a temperature-viscosity model based on the temperature viscosity constant and a preset temperature-viscosity relational expression, wherein the temperature-viscosity model comprises the following steps: inputting the temperatures and the corresponding outflow time into a preset model lglglgGCt ═ A-BlgT to obtain a temperature viscosity constant, wherein the preset model is obtained based on the temperature viscosity relational expression lgGY ═ A-BlgT and the relational expression Y ═ Ct between kinematic viscosity and time; inputting the temperature viscosity constant into the temperature viscosity relational expression to obtain the temperature viscosity model; wherein Y is the kinematic viscosity of the cold-rolled oil sludge, T is the outflow time required by the cold-rolled oil sludge to flow out of the liquid storage container, T is the temperature of the cold-rolled oil sludge, A and B are both temperature viscosity constants, and C is the outflow time viscosity constant.
Preferably, after obtaining the outflow time corresponding to the target viscous substance at multiple temperatures, the method further includes: drawing a curve graph by taking the temperature as an abscissa and the time as an ordinate to obtain a relation curve of the temperature and the time; and determining a temperature interval with stable fluidity of the target viscous substance based on the relation curve, wherein the temperature interval is used for determining the use temperature of the target viscous substance.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the system and the method for obtaining kinematic viscosity provided by the embodiment of the invention comprise a drainage device, a temperature control device, a timer and a support frame, wherein the drainage device comprises a liquid storage container and a liquid guide pipe, and the liquid storage container is communicated with one end of the liquid guide pipe; the temperature of the target viscous substance is adjusted through the temperature control device, and the target viscous substance with various temperatures flows into the liquid guide pipe from the liquid storage container by means of gravity and flows out through the other end of the liquid guide pipe; in the process, the timer counts the time from the beginning to the complete outflow of the target viscous substance. This application is through heating different temperatures with target thick consistency material, obtains the required time of the outflow stock solution container that the target thick consistency material of multiple temperature corresponds. The method can obtain the kinematic viscosity of the target viscous substance according to the actual temperature of the target viscous substance measured in actual production, and has the characteristics of simple means and low cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a block diagram of a system for obtaining kinematic viscosity according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for obtaining kinematic viscosity according to an embodiment of the present invention;
FIG. 3 is a process flow diagram of a method for obtaining kinematic viscosity according to an embodiment of the present invention;
fig. 4 is a fitting graph of the temperature rise process of the cold-rolled oil sludge and the outflow time data provided by the embodiment of the invention.
Detailed Description
The embodiment of the application provides a system and a method for acquiring kinematic viscosity, and the kinematic viscosity of a target viscous substance is obtained by converting the complex measurement of the kinematic viscosity of the target viscous substance into simple measurement of the time required for the target viscous substance to flow out of a liquid storage container at multiple temperatures.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
the embodiment of the application provides a system and a method for acquiring kinematic viscosity, and the method comprises the following steps: the drainage device comprises a liquid storage container and a liquid guide pipe, and the liquid storage container is communicated with one end of the liquid guide pipe; the support frame is used for fixedly supporting the drainage device, and the liquid storage container is used for storing a target viscous substance; the temperature control device is used for enabling the temperature of the target viscous substance added into the liquid storage container to be different; the target viscous substance in the liquid storage container flows into the liquid guide pipe under the action of gravity and flows out from the other end of the liquid guide pipe; the timer is used for timing the outflow time of the target viscous substance with various temperatures to obtain the outflow time corresponding to the target viscous substance with various temperatures, so as to input a preset model to obtain a temperature viscosity constant, and obtain a warm-sticking model based on the temperature viscosity constant and a preset warm-sticking relational expression, wherein the warm-sticking model is used for obtaining the kinematic viscosity of the target viscous substance according to the actual temperature of the target viscous substance measured in actual production.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
It should be noted that the flowing viscosity of the viscous substance is related to the temperature, the fluidity of the viscous substance can be improved by heating the viscous substance, the temperature is controlled in a certain interval to ensure the stability of the flowing of the substance, and the method for determining the optimal conveying temperature interval can be the relation between the moving viscosity of the substance and the temperature.
The target viscous substance in the application can be cold-rolled oil sludge or other viscous substances with complex components.
In a first aspect, the embodiment of the present invention provides a system for obtaining kinematic viscosity, specifically, as shown in fig. 1, the system includes a drainage device 10, a temperature control device (not shown), a timer (not shown), and a support 20, the drainage device 10 includes a liquid storage container 101 and a liquid guiding tube 102, and the liquid storage container 101 is communicated with one end of the liquid guiding tube 102.
It should be noted that the liquid storage container 101 may be a conical container with two open ends, a large end of the conical container is open for adding the target viscous substance, and a small end of the conical container is open to communicate with one end of the liquid guiding tube. The conical container is connected to one end of the liquid guiding tube 102 to form the drainage device 10, for example, the drainage device 10 may be a conical funnel, and the size of the conical funnel is selected according to actual needs, for example: selecting a conical funnel with the pipe diameter of 6-8 mm.
A support frame 20 in the system is used for fixedly supporting the drainage device 10, and a liquid storage container 101 is used for storing a target viscous substance. Wherein, in order to control the starting moment of the outflow of the target viscous substance, the system further comprises: the bottom valve 30, the bottom valve 30 is disposed at the liquid outlet of the liquid storage container 101, which is communicated with the liquid guiding pipe 102, and is used for controlling the outflow of the target viscous substance in the liquid storage container 101.
Wherein the temperature control device is used for enabling the temperature of the target viscous substance added into the liquid storage container 101 to be different temperatures.
Specifically, the temperature control device may be a water bath device, and the process of heating the target viscous substance by using the water bath device may include: weighing a certain amount of low-temperature target viscous substance, heating the target viscous substance in a water bath from low temperature, uniformly stirring, measuring the temperature of the target viscous substance in real time by using a thermometer until the target temperature is reached, and inversely placing the target viscous substance at the target temperature in a liquid storage container. The target viscous substance in the liquid storage container flows into the liquid guide pipe under the action of gravity and flows out from the other end of the liquid guide pipe.
In addition, the system further comprises: the recovery container 40 is used for recovering the target viscous substance flowing out of the liquid guiding pipe 102.
As another optional embodiment, the system may further include: a central control device (not shown in the figures) for: inputting various temperatures and corresponding outflow time into a preset model lglglglct ═ a-BlgT to obtain a temperature viscosity constant, and inputting the temperature viscosity constant into a preset temperature-viscosity relational expression lggy ═ a-BlgT to obtain a temperature-viscosity model; wherein Y is the kinematic viscosity of the target viscous substance, T is the outflow time required by the target viscous substance to flow out of the liquid storage container, T is the temperature of the target viscous substance, A and B are both temperature viscosity constants, and C is the outflow time viscosity constant.
It should be noted that the preset model lglglggct ═ a-BlgT reflects the relationship between the temperature of the target viscous substance and the outflow time required for completely flowing out of the liquid storage container, and can be obtained by combining equations of a kinematic viscosity-temperature relationship (i.e., a temperature-viscosity relationship) lglggy ═ a-BlgT and a kinematic viscosity-time relationship Y ═ Ct. In addition, the central control device can be a computer, a control panel and other devices.
As another alternative embodiment, the temperature control device may also be: the heating of the target viscous substance is automatically realized. For example, the automatic heating device is in communication connection with a central control device, the automatic heating device is communicated with the liquid storage container, the central control device is used for controlling the automatic heating device to heat the target viscous substance, and after the target viscous substance reaches the target temperature, the heated target viscous substance is conveyed from the temperature control device to the liquid storage container.
Specifically, the central control device can convey the target viscous substance stored in the specified container to the automatic heating device, and the automatic heating device heats the target viscous substance and sends the temperature to the central control device in real time. When the central control device monitors that the target viscous substance reaches the target temperature, the central control device conveys the target viscous substance to be controlled to the liquid storage container from the automatic heating device.
The timer in the system is used for timing the outflow time of target viscous substances with various temperatures to obtain the outflow time corresponding to the target viscous substances with various temperatures, so as to input the outflow time into a preset model to obtain a temperature viscosity constant, and the temperature viscosity model is obtained based on the temperature viscosity constant and a preset temperature viscosity relational expression. The warm-sticking model is used for obtaining the kinematic viscosity of the target viscous substance according to the actual temperature of the target viscous substance measured in actual production.
In addition, in order to enable the timer to automatically stop counting time, the system may further include: and the weighing device (not shown in the figure) is positioned below the recovery container, wherein the weighing device, the timer and the bottom valve 30 are all connected with the central control device, and the timer is connected with the bottom valve 30. The weighing device is used for weighing the target viscous substance in the recovery container and sending weighing data to the central control device. The central control device is used for controlling the opening and closing of the bottom valve 30, when the bottom valve 30 is opened, the timer starts to time until the central control device detects that the target viscous substance in the weighing device reaches a preset amount, the central control device controls the bottom valve to close, and the timer stops timing. Of course, the timer may be a single timing device, or may be a timing module in the central control device.
The utility model provides a system for be used for obtaining kinematic viscosity can realize timing the outflow time of the thick form material of target to multiple temperature, obtain the outflow time that the thick form material of target of multiple temperature corresponds, with the preset model of input, obtain the temperature viscosity constant, and based on temperature viscosity constant and the temperature that predetermines and glue the relational expression, obtain the warm-sticking model, the warm-sticking model is arranged in the actual temperature of the thick form material of target who surveys in the actual production, obtain the kinematic viscosity of the thick form material of target.
In a second aspect, an embodiment of the present invention provides a method for obtaining kinematic viscosity, specifically, as shown in fig. 2, the system includes the following steps S101 to S103.
And step S101, obtaining outflow time corresponding to target viscous substances with various temperatures.
In a specific implementation process, when the target viscous substance is cold-rolled oil sludge, obtaining the outflow time corresponding to the target viscous substance at multiple temperatures, including: heating a plurality of cold-rolled oil sludge with the same amount according to a preset temperature step to obtain quantitative cold-rolled oil sludge at different temperatures; and controlling the cold rolling oil sludge to flow out of the liquid storage container aiming at the quantitative cold rolling oil sludge at each temperature, and measuring the time required for the cold rolling oil sludge to flow out of the liquid storage container at the corresponding temperature to obtain the corresponding flow-out time of the cold rolling oil sludge at various temperatures.
Specifically, as shown in the process flow chart of the method for obtaining kinematic viscosity shown in fig. 3, a certain amount of cold-rolled oil sludge is weighed, the cold-rolled oil sludge is heated in a water bath from a lower value (for example, lower than 10 ℃) and is uniformly stirred, the temperature of the cold-rolled oil sludge is measured by a thermometer in real time, when the temperature is increased by 5-10 ℃, the cold-rolled oil sludge is poured into a liquid storage container, the starting time of the cold-rolled oil sludge flowing out of the liquid storage container is controlled by a bottom valve, the time of the cold-rolled oil sludge completely and naturally flowing out of the liquid storage container is measured by a timer, and the operation is repeated until the temperature reaches 80 ℃ and is finished. And obtaining the outflow time corresponding to the cold rolling oil sludge at various temperatures through the steps, and drawing a curve graph by taking the temperature as an abscissa and the time as an ordinate to obtain a relation curve of the temperature and the time. And determining a temperature interval with stable target viscous substance fluidity, namely a temperature interval when the slope of the curve is close to 0, based on the relation curve, so that the target viscous substance is stabilized in the temperature interval, and the temperature interval is used as a basic process parameter required by the engineering design of the cold-rolled oil sludge. And then carrying out subsequent kinematic viscosity constant solving and kinematic viscosity calculation.
And S102, inputting the various temperatures and the corresponding outflow time into a preset model to obtain a temperature viscosity constant.
In an alternative embodiment, the preset model may be a pre-constructed model, wherein the construction method includes: and combining a preset model lggCt with the relation of kinematic viscosity and temperature, namely A-BlgT, and the relation of kinematic viscosity and time, namely Y-Ct, wherein Y is the kinematic viscosity of the cold-rolled oil sludge, T is the time required by the cold-rolled oil sludge to flow out of the liquid storage container, T is the temperature of the cold-rolled oil sludge, and C, A, B is a kinematic viscosity constant. Thus, the influence of the kinematic viscosity change at different temperatures on the length of the efflux time is expressed by a predetermined model lglglglct ═ a-BlgT.
Specifically, inputting the multiple temperatures and the corresponding outflow times obtained based on the foregoing method into a preset model to obtain a warm-viscous model, which may include: and obtaining a material temperature viscosity constant and an outflow time viscosity constant based on a preset model lglglgCt ═ A-BlgT and outflow time corresponding to target viscous materials at various temperatures, so as to establish the temperature-viscosity model. For example, the collected data of various temperatures and corresponding times can be input into a computer program to obtain values of temperature viscosity constants A and B and outflow time viscosity constant C.
And S103, obtaining a temperature-viscosity model based on the temperature-viscosity constant and a preset temperature-viscosity relational expression, wherein the temperature-viscosity model is used for obtaining the kinematic viscosity of the target viscous substance according to the actual temperature of the target viscous substance measured in actual production.
Specifically, the temperature-viscosity relationship between the target viscous substance and the kinematic viscosity is obtained by substituting the obtained temperature-viscosity constants a and B into a preset temperature-viscosity relationship lgly — a-BlgT. When the kinematic viscosity of a viscous substance needs to be measured, the kinematic viscosity can be obtained only by measuring the temperature of the substance.
Therefore, the kinematic viscosity of the cold rolling oil sludge at various temperatures can be simply calculated by the equation lglgly ═ A-BlgT, the method changes the measurement of the kinematic viscosity which is difficult to directly measure into the measurement of the temperature and the time which are simple, and a simple method is provided for the measurement of the kinematic viscosity of the complex viscous substance.
As shown in table 1, in order to test the chemical composition elements of the cold rolling sludge, it can be seen from the table that the cold rolling sludge contains a large amount of impurities, which makes the determination of kinematic viscosity difficult and makes the test costly due to the presence of impurities. By adopting the method for converting the kinematic viscosity into the measurement of the temperature and the time, the kinematic viscosity of the complex viscous material is simple and convenient to measure, and the cost is low.
Table 1 chemical composition analysis of cold rolling sludge
The method for obtaining kinematic viscosity according to the present application is further described below with reference to specific embodiments: firstly, setting the volume of a cold-rolled oil sludge sample as 100ml, when the cold-rolled oil sludge sample is cooled to about 0 ℃ in a refrigerator, placing the cold-rolled oil sludge sample in a water bath kettle for heating, when the temperature reaches the interval requirement of 5-10 ℃, pouring the cold-rolled oil sludge sample into a conical funnel, timing while opening a bottom valve of the conical funnel, recording the time for the cold-rolled oil sludge to completely flow out of the conical funnel, repeating the operation until the temperature is raised to 80 ℃, collecting the temperature and the time, and recording the flowing-out time, the performance and the form description of the cold-rolled oil sludge at different temperatures in a table 2.
TABLE 2 Cold Rolling sludge run-out time, Performance and morphology description at different temperatures
| Temperature/. degree.C | Time of flow/s | State of material | Description of the invention |
| -3 | Is free of | Paste shape | No |
| 8 | 82 | In the form of grease | Is difficult to flow |
| 14.5 | 44 | Thick grease | Slow flow |
| 19.5 | 33 | Sticky and hanging cup seriously | Slow flow |
| 23.2 | 28 | Sticky and hanging cup seriously | Has fluidity and remarkable shrinkage of |
| 31 | 15 | Viscous paste-like, strikingly drawn wire | Improved fluidity and shrinkage of liquid column |
| 36.8 | 12 | Relatively thin fluid, uniform flow | Good fluidity and reduced |
| 41 | 11 | Thin fluid, flow is uniform | Good fluidity and no shrinkage of |
| 47 | 8.5 | Thin fluid, flow is uniform | Good fluidity and no shrinkage of |
| 52 | 7.3 | Thin fluid, uniform flow | Good fluidity and no shrinkage of |
| 57 | 6.6 | Thin fluid, uniform flow | Good fluidity and no shrinkage of |
| 70 | 6.2 | Fluid, flow is uniform | Good fluidity and no shrinkage of |
| 79 | 5.6 | Fluid, flow is uniform | Good fluidity and no shrinkage of liquid column |
Further, as shown in fig. 4, the collected temperature rise process and outflow time data of the cold-rolled oil sludge are fitted into a curve, wherein the abscissa represents the temperature of the cold-rolled oil sludge, the ordinate represents the outflow time of the cold-rolled oil sludge, the slope of the curve is obviously changed when the temperature is in the range of 30-35 ℃, which indicates that the fluidity of the sample starts to change greatly, when the temperature is continuously raised to 40 ℃, the flowing state of the sample is very good, especially after 50 ℃, the rheological curve is basically leveled, the flowing state has not changed significantly, which indicates that the rheological property of the oil product enters a stable state, and 40-50 ℃ is determined as a stable flowing range of the cold-rolled oil sludge.
In order to verify the application accuracy of the warm-sticking model in actual production, the kinematic viscosity acquired by the warm-sticking model is compared with the actually measured kinematic viscosity, and the result is as follows:
and (3) performing substitution calculation on the relational expression of the temperature and the outflow time of the method, namely the lglglgCt and the A-BlgT by using a computer to obtain a viscosity constant, and calculating the kinematic viscosity at different temperatures by using the relational expression of the lgGY and the A-BlgT. The kinematic viscosity constant of the cold rolling oil sludge is as follows: c1.45 m2/s2, B4.85 and a 12.21. When the temperature of the cold rolling oil sludge is 26 ℃, the calculated value of the kinematic viscosity of the cold rolling oil sludge is 39.08m2/s, the actual value of the cold rolling oil sludge is 34.42m2/s, and the two values are close to each other; when the temperature of the alternative cold-rolled oil sludge is 50 ℃, the calculated value of the kinematic viscosity of the alternative cold-rolled oil sludge is 12.44m2/s, and the actual value is 12.08m2/s, which are also not very different.
Further, the correctness of lglggct ═ a-BlgT was verified at optional temperatures in table 2: the calculated value of the flow-out time of the cold rolling oil sludge is 6.58s and the actually measured time value is 6.2s when the temperature is 70 ℃ through the viscosity constant, and the two are very close to each other; further alternatively, at the temperature of 23.3 ℃ in table 2, the calculated outflow time of the cold-rolled oil sludge is 24s, and the actually measured time is 28s, which are also very close to each other, and under other temperature conditions, the relationship between the temperature and the outflow time of the method is described as a preset model lglglct-a-BlgT, which is highly consistent with the actual situation, so that the kinematic viscosity of the substance calculated by the kinematic viscosity relationship of the method can be applied to engineering design.
Therefore, according to the measurement and calculation method for obtaining kinematic viscosity provided by the embodiment of the present invention, measurement of temperature and time is used to replace measurement of kinematic viscosity according to the relational expression lglglct ═ a-BlgT, the measure is simple, the cost is low, and the engineering calculation of the kinematic viscosity of the viscous substance with complex components by computer fitting is realized.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A system for obtaining kinematic viscosity, comprising: the drainage device comprises a liquid storage container and a liquid guide pipe, and the liquid storage container is communicated with one end of the liquid guide pipe;
the support frame is used for fixedly supporting the drainage device, and the liquid storage container is used for storing a target viscous substance;
the temperature control device is used for enabling the temperature of the target viscous substance added into the liquid storage container to be different;
the target viscous substance in the liquid storage container flows into the liquid guide pipe under the action of gravity and flows out from the other end of the liquid guide pipe;
the timer is used for timing the outflow time of the target viscous substance with various temperatures to obtain the outflow time corresponding to the target viscous substance with various temperatures, so as to input a preset model to obtain a temperature viscosity constant, and obtain a warm-sticking model based on the temperature viscosity constant and a preset warm-sticking relational expression, wherein the warm-sticking model is used for obtaining the kinematic viscosity of the target viscous substance according to the actual temperature of the target viscous substance measured in actual production.
2. The system of claim 1, wherein the system further comprises: the bottom valve is arranged at a liquid outlet of the liquid storage container, communicated with the liquid guide pipe, and used for controlling the outflow of target viscous substances in the liquid storage container.
3. The system of claim 1, wherein the temperature control device is a water bath apparatus.
4. The system as claimed in claim 1, wherein the liquid storage container is a conical container with two open ends, the large end of the conical container is open for adding the target viscous substance, and the small end of the conical container is open to communicate with one end of the liquid guiding tube.
5. The system of claim 1, further comprising a recovery container for recovering the target viscous substance flowing from the priming tube.
6. The system of claim 1, further comprising:
a central control device for: inputting the temperatures and the corresponding outflow time into a preset model lglglglct ═ a-BlgT to obtain a temperature viscosity constant, and inputting the temperature viscosity constant into a preset temperature viscosity relational expression lggy ═ a-BlgT to obtain the temperature viscosity model;
wherein Y is the kinematic viscosity of the target viscous substance, T is the outflow time required by the target viscous substance to flow out of the liquid storage container, T is the temperature of the target viscous substance, A and B are both temperature viscosity constants, and C is the outflow time viscosity constant.
7. A method for obtaining kinematic viscosity, applied to a system according to any one of claims 1 to 6, comprising:
obtaining outflow time corresponding to target viscous substances at various temperatures;
inputting the multiple temperatures and the corresponding outflow time into a preset model to obtain a temperature viscosity constant;
and obtaining a warm-sticking model based on the temperature-viscosity constant and a preset warm-sticking relational expression, wherein the warm-sticking model is used for obtaining the kinematic viscosity of the target viscous substance according to the actual temperature of the target viscous substance measured in actual production.
8. The method of claim 7, wherein the target viscous material is cold rolled oil sludge, and the obtaining the outflow time corresponding to the target viscous material at a plurality of temperatures comprises:
heating a plurality of cold-rolled oil sludge with the same amount according to a preset temperature step to obtain quantitative cold-rolled oil sludge at different temperatures;
and controlling the cold rolling oil sludge to flow out of the liquid storage container aiming at the quantitative cold rolling oil sludge at each temperature, measuring the time required for the cold rolling oil sludge to flow out of the liquid storage container at the corresponding temperature, and obtaining the outflow time corresponding to the cold rolling oil sludge at various temperatures.
9. The method of claim 8, wherein said inputting said plurality of temperatures and corresponding flow-out times into a preset model results in a temperature viscosity constant; obtaining a temperature-viscosity model based on the temperature viscosity constant and a preset temperature-viscosity relational expression, wherein the temperature-viscosity model comprises the following steps:
inputting the temperatures and the corresponding outflow time into a preset model lglglgGCt ═ A-BlgT to obtain a temperature viscosity constant, wherein the preset model is obtained based on the temperature viscosity relational expression lgGY ═ A-BlgT and the relational expression Y ═ Ct between kinematic viscosity and time;
inputting the temperature viscosity constant into the temperature viscosity relational expression to obtain the temperature viscosity model;
wherein Y is the kinematic viscosity of the cold-rolled oil sludge, T is the outflow time required for the cold-rolled oil sludge to completely flow out of the fixing device, T is the temperature of the cold-rolled oil sludge, A and B are both temperature viscosity constants, and C is the outflow time viscosity constant.
10. The method as claimed in claim 7, wherein after obtaining the corresponding outflow time of the target viscous substance with multiple temperatures, the method further comprises:
drawing a curve graph by taking the temperature as an abscissa and the time as an ordinate to obtain a relation curve of the temperature and the time;
and determining a temperature interval with stable fluidity of the target viscous substance based on the relation curve, wherein the temperature interval is used for determining the use temperature of the target viscous substance.
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