CN1450345A - Instrument for determining rheological properties of Non-Newtonian viscosity fluid - Google Patents
Instrument for determining rheological properties of Non-Newtonian viscosity fluid Download PDFInfo
- Publication number
- CN1450345A CN1450345A CN 03121123 CN03121123A CN1450345A CN 1450345 A CN1450345 A CN 1450345A CN 03121123 CN03121123 CN 03121123 CN 03121123 A CN03121123 A CN 03121123A CN 1450345 A CN1450345 A CN 1450345A
- Authority
- CN
- China
- Prior art keywords
- fluid
- instrument
- control box
- newtonian
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention belongs to the hydro-mechanical field, especially refers to an apparatus determining the rheological properties of the hgh-temperature Newton viscous melt, composed of transformer, computer control system, cooling water system, control box, measuring rod, graphite protection tube, molybdenum measuring head, graphite crucible, tungsten-rhenium thermocouple, high-temperature resistance furnace, argon-gas pot, sensor and electric motor and its character lying in that it adds variable-frequency speed governing power supply, multiturn potentiometer, digital speed meter, stabilized voltage supply and speed meter's control box. It can determine viscous fluid as well as time-correlative fluid. It can describe the relation of cut rate (*) and cut stress (D).
Description
Technical field:
The invention belongs to the fluid mechanics field, particularly a kind of instrument of measuring high temperature non-Newtonian viscosity melt rheological characteristics.
Technical background:
The high-temperature fusant of unknown flow characteristics can utilize following method to measure its rheological characteristics, promptly pass through the high temperature rotational viscosimeter of adjustable rotating speed, whether obtain the relation of different shear rate (τ) and shear stress (D), be that straight line judges whether this melt is Newtonian fluid by τ～D relation then.
Adopt the viscosity of the viscometer determining melt of coaxial rotary body sensor-based system.When selected a certain fixed rotating speed, can this rotating speed under the apparent viscosity η of melt
a, computing formula is:
η
a＝KΔM
The K-instrument constant; The viscous moment that Δ M-records poor.
RTW-04 type physical properties of melt comprehensive tester is an equipment of measuring the physical properties of melt parameter, is mainly used in viscosity, surface tension and the density of test high-temperature fusant.Because RTW-04 type physical properties of melt comprehensive tester can only be measured the viscosity of melt under a certain rotating speed (300rpm), and can not measure viscosity with change in rotational speed, thereby can not obtain to describe the shear rate (τ) of melt and the relation of shear stress (D).
Summary of the invention:
The present invention seeks to invent a kind of instrument, can measure viscosity, thereby describe out the shear rate (τ) of melt and the relation of shear stress (D) with change in rotational speed.
A kind of instrument of measuring the incompressible non-newtonian viscous fluid rheological characteristics; form by transformer 1, computerized control system 2, cooling water system 3, control box 4, measuring staff 5, graphite material protection tube 6, molybdenum gauge head 7, graphite crucible 8, Wolfram rhenium heat electric couple 9, high temperature resistance furnace 10, argon tanks 11, sensor 17 and motor 18, it is characterized in that instrument set up variable-frequency power 12, multiturn potentiometer 13, digital tachometer 14, stabilized voltage supply 15, the instrument that tests the speed control box 16.
The model of RTW-04 type physical properties of melt motor that comprehensive tester is equipped with is the 55TDY300 permanent magnet low speed synchronous motor.The rotating speed that its single-phase circuit mode of connection can only obtain to fix.The wiring that changes motor is three phase connections, adopts variable-frequency power 12 can obtain the function of stepless speed regulation of motor, and the speed adjustable range that makes motor is 0～600rpm.
Potentiometer is used the degree of regulation that adopts multiturn potentiometer 13 to improve this instrument instead.Use digital tachometer 14 can measure motor speed.Adopt fully automatic pressure-stabilizing power supply 15, can stablize the pressure reduction of entire circuit.
The present invention both can measure viscous fluid, also can minute correlativity fluid.Measure that slag is a Newtonian fluid under the hot conditions, but after adding some oxides, some slag becomes non-Newtonian fluid, but it is little to depart from the degree of Newtonian fluid.When temperature was low, the mobile obviously variation of slag showed as non-Newtonian fluid, and the degree that departs from Newtonian fluid sometimes can be very big.Measurement range of the present invention is wide, and the utilization ratio height of equipment can be described the shear rate (τ) of melt and the relation of shear stress (D).
Description of drawings:
Fig. 1 is the apparatus synoptic diagram: 1. transformer, 2. computerized control system, 3. cooling water system, 4. control box, 5. measuring staff, 6. graphite material protection tube 7. molybdenum gauge heads, 8. graphite crucible, 9. Wolfram rhenium heat electric couple, 10. test the speed instrument control box, 17. sensors, 18. motor of high temperature resistance furnace, 11. argon tanks, 12. speed governing power supplys, 13. potentiometers, 14 knotmeters, 15. stabilized voltage supplys, 16.
Embodiment:
The standard oil GBW13608, the GBW13609 that adopt China National Measuring Science Research Inst. to provide in the experiment, its dynamic viscosity value is respectively 0.5153Pas and 0.9193Pas.According to the statistics of many groups experimental data, get average variance σ=0.0391 of viscosity data, show that improved experimental provision has higher reliability.
By the error analysis method of uncertainty, system errors for measurement can be divided into two parts: a class is a random uncertainty, resulting standard variance σ value during as the measurement standard oil viscosity; One class is a systematic uncertainty, comprises the error of viscosity meter or standard oil, the error of temperature controlling instruments, the error of torque sensor.Table 1 has provided improved physical properties of melt analyzer and has measured rheological characteristics system error analysis situation.According to the formula of propagation of error, the maximum relative error of system is the absolute value sum of various piece error, and its value is for ± 5.67%.
The error analysis of table 1 measuring system each several part
The standard transducer speed governing is the fused salt temperature measurement error source of liquid level position degree of eccentricity K value
The oil Hz system Hz mm mm degree of randomness K of system absolute error 20 0.14 133 relative errors 0.00 ± 0.20% ± 1.20% ± 0.50% ± 0.50% ± 3.92% ± 0.25%
1. the mensuration of the rheological characteristics of titer, glue, condensed milk
Three mean values of the viscosity number of bioassay standard liquid Gbw13608 are 0.5031Pas, and relative error is+1.49% and-0.97%.Three mean values of the viscosity number of bioassay standard liquid Gbw13609 are 0.8119Pas, and relative error is+1.00% and-0.79%.This is the error that measuring process produces, and getting maximum value relative error is+1.49% and-0.97%.The total error of whole measuring process should be each several part error and measuring error sum, and maximum relative error is+7.16 and-6.64%.
The constitutive equation of table 2 titer
| Experiment numbers | With taking back of Newtonian liquid fluid temperature (F.T.) ℃ constitutive equation correction constitutive equation fluid behaviour body |
| ???1 | Gbw13608??????21.5???τ＝0.512D 1.002??0.86％??τ＝0.512D 1.000Newtonian fluid |
| ???2 | Gbw13608??????21.5???τ＝0.500D 1.010??4.36％??τ＝0.500D 1.000Newtonian fluid |
| ???3 | Gbw13608??????21.5???τ＝0.498D 1.007??3.03％??τ＝0.498D 1.000Newtonian fluid |
| ???4 | Gbw13609??????20.1???τ＝0.820D 1.009??3.92％??τ＝0.820D 1.000Newtonian fluid |
| ???5 | Gbw13609??????20.1???τ＝0.810D 1.009??3.92％??τ＝0.810D 1.000Newtonian fluid |
| ???6 | Gbw13609??????20.1???τ＝0.806D 1.011??4.81％??τ＝0.806D 1.000Newtonian fluid |
The rheology constitutive equation of table 3 glue (20.1 ℃)
| Test number | Deviation with Newtonian liquid adjuvant constitutive equation correction constitutive equation fluid behaviour body |
| ??1 | Do not add τ=1.370D 0.935??24.25％???τ＝1.370D 0.935Pseudoplastic fluid |
| ??2 | ????SiO 2?????τ＝1.781D 0.963??14.62％???τ＝1.781D 0.963Pseudoplastic fluid |
| ??3 | 30% water τ=0.258D 0.910??31.91％???τ＝0.258D 0.910Pseudoplastic fluid |
| ??4 | 70% water τ=0.234D 0.460??90.04％???τ＝0.234D 0.460Pseudoplastic fluid |
Because glue has certain viscosity, the particle of adding can be suspended in the glue long period, just can sink to the bottom behind the long time.The rheological characteristics of measuring is that fine grained is suspended in the situation in the glue.Add SiO
2Behind the fine grained, the apparent viscosity of glue increases before adding to some extent.As seen, tiny suspended particle is arranged in the fluid after, can exert an influence to its rheological characteristics.Content along with water in the glue increases, and apparent viscosity descends to some extent, can exert an influence to rheological characteristics.
Condensed milk is the thixotropic fluid in the fluid of temporal correlation, and promptly viscosity increases with shear time and descends gradually.Promptly thinning with the shear stress increase.Because when gauge head rotated, the structure of condensed milk was damaged, its viscosity approaches definite value after about 8min.
2. the rheological characteristics of high-temperature fusant (sodium borate, covering slag) is measured
The chemical constitution of table 4 Shoudu Iron and Steel Co covering slag
| Oxide | MgO????Al 2O 3?SiO 2???Na 2O????CaO????TiO 2 |
| Composition % | 1.47???12.98???47.57????7.71????28.52???1.75 |
Is Newtonian fluid for pure borate in the characteristic of higher temperature fluid, is the pseudoplastic fluid in the non-Newtonian fluid when lower temperature, and it is 1 far away that n departs from.Add SiO in the sodium borate
2, melt is a non-Newtonian fluid under the condition of test.Add SiO
2The fusing point of back melt descends, and apparent viscosity also descends, and the mean value in the time of 700 ℃ is than not adding SiO at 760 ℃
2Want high, and n to depart from the value of Newtonian fluid also less.
The rheology constitutive equation of table 5 sodium borate melt
| Test number | With taking back of Newtonian liquid temperature ℃ additive constitutive equation correction constitutive equation fluid behaviour body |
| ???1 | ?920?????????????τ＝0.187D 1.016???6.86％???τ＝0.187D 1.000Newtonian fluid |
| ???2 | ?830?????????????τ＝0.470D 0.998???0.73％???τ＝0.470D 1.000Newtonian fluid |
| ???3 | ?760?????????????τ＝4.656D 0.586???82.91％??τ＝4.656D 0.586Pseudoplastic fluid |
| ???4 | ?740????6％SiO 2?τ＝2.249D 0.922???28.33％??τ＝2.249D 0.922Pseudoplastic fluid |
| ???5 | ?700????6％SiO 2?τ＝3.588D 0.980???8.19％???τ＝3.588D 0.980Pseudoplastic fluid |
Covering slag is a Newtonian fluid in the characteristic of higher temperature fluid, is the pseudoplastic fluid in the non-Newtonian fluid when lower temperature, and it is 1 far away that n departs from.Add SiO
2After, acid ion in the slag increases, complicated ionic group increases, and makes the viscosity source of slag raise, but still is Newtonian fluid.Adding SiO
2After slag in add the CaO of 15g again, variation has taken place in the rheological characteristics of slag, melt becomes non-Newtonian fluid, the value of n is greater than 1, than Newtonian fluid certain departing from is arranged.
The constitutive equation of table 6 Shoudu Iron and Steel Co covering slag
| Test number | Deviation with Newtonian liquid temperature ℃ additive constitutive equation correction constitutive equation slag characteristic body |
| ???1 | 1200 do not add τ=1.844D 1.012??5.20％????τ＝1.844D 1.000Newtonian fluid |
| ???4 | 1300 do not add τ=0.921D 1.014??6.07％????τ＝0.921D 1.000Newtonian fluid |
| ???5 | 1360 do not add τ=0.546D 1.003??0.55％????τ＝0.546D 1.000Newtonian fluid |
| ???8 | ?1360???SiO 25g?τ＝0.718D 0.986??5.73％????τ＝0.718D 1.000Newtonian fluid |
| ???9 | ?1360??CaO15g???τ＝0.807D 1.125??70.55％???τ＝0.807D 1.125Dilatant fluid |
Claims (1)
1. instrument of measuring the incompressible non-newtonian viscous fluid rheological characteristics; form by transformer (1), computerized control system (2), cooling water system (3), control box (4), measuring staff (5), graphite material protection tube (6), molybdenum gauge head (7), graphite crucible (8), Wolfram rhenium heat electric couple (9), high temperature resistance furnace (10), argon tanks (11), sensor (17) and motor (18), it is characterized in that instrument set up variable-frequency power (12), multiturn potentiometer (13), digital tachometer (14), stabilized voltage supply (15), the instrument that tests the speed control box (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031211232A CN1185476C (en) | 2003-03-27 | 2003-03-27 | Instrument for determining rheological properties of Non-Newtonian viscosity fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031211232A CN1185476C (en) | 2003-03-27 | 2003-03-27 | Instrument for determining rheological properties of Non-Newtonian viscosity fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1450345A true CN1450345A (en) | 2003-10-22 |
| CN1185476C CN1185476C (en) | 2005-01-19 |
Family
ID=28684399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031211232A Expired - Fee Related CN1185476C (en) | 2003-03-27 | 2003-03-27 | Instrument for determining rheological properties of Non-Newtonian viscosity fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1185476C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101072991B (en) * | 2004-12-10 | 2010-09-01 | 罗狄亚化学公司 | Method and installation for determining rheological characteristics of a fluid, and corresponding identifying method |
| CN102735588A (en) * | 2011-12-21 | 2012-10-17 | 湖北航天化学技术研究所 | Simple determinator for propellant slurry processing properties |
| CN101526459B (en) * | 2009-04-16 | 2012-11-14 | 中国船舶重工集团公司第七二五研究所 | Flectrorheological material damping performance test device and method thereof |
| CN106596333A (en) * | 2016-11-01 | 2017-04-26 | 美特斯工业系统（中国）有限公司 | Rheological measurement equipment for materials and using method thereof |
| CN107561006A (en) * | 2017-10-26 | 2018-01-09 | 新疆大学 | A kind of measurement apparatus of boiler slag adhesion |
| CN113051842A (en) * | 2021-03-05 | 2021-06-29 | 清华大学 | non-Newtonian fluid simulation method and device |
| CN115246703A (en) * | 2022-09-26 | 2022-10-28 | 华北理工大学 | Method for controlling particle size of blast furnace slag-based glass beads by utilizing shear thinning characteristic |
| CN113051842B (en) * | 2021-03-05 | 2024-06-04 | 清华大学 | Non-Newtonian fluid simulation method and device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590272B (en) * | 2012-02-18 | 2014-03-26 | 殷子炫 | Shear stress-based swill-cooked dirty oil temperature change detection method and instrument |
| CA2946764C (en) * | 2014-05-02 | 2023-08-01 | Schlumberger Canada Limited | Viscometer and methods of use thereof |
-
2003
- 2003-03-27 CN CNB031211232A patent/CN1185476C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101072991B (en) * | 2004-12-10 | 2010-09-01 | 罗狄亚化学公司 | Method and installation for determining rheological characteristics of a fluid, and corresponding identifying method |
| CN101526459B (en) * | 2009-04-16 | 2012-11-14 | 中国船舶重工集团公司第七二五研究所 | Flectrorheological material damping performance test device and method thereof |
| CN102735588A (en) * | 2011-12-21 | 2012-10-17 | 湖北航天化学技术研究所 | Simple determinator for propellant slurry processing properties |
| CN106596333A (en) * | 2016-11-01 | 2017-04-26 | 美特斯工业系统（中国）有限公司 | Rheological measurement equipment for materials and using method thereof |
| CN106596333B (en) * | 2016-11-01 | 2019-04-19 | 美特斯工业系统（中国）有限公司 | A kind of material flowing deformation measuring device and its application method |
| CN107561006A (en) * | 2017-10-26 | 2018-01-09 | 新疆大学 | A kind of measurement apparatus of boiler slag adhesion |
| CN113051842A (en) * | 2021-03-05 | 2021-06-29 | 清华大学 | non-Newtonian fluid simulation method and device |
| CN113051842B (en) * | 2021-03-05 | 2024-06-04 | 清华大学 | Non-Newtonian fluid simulation method and device |
| CN115246703A (en) * | 2022-09-26 | 2022-10-28 | 华北理工大学 | Method for controlling particle size of blast furnace slag-based glass beads by utilizing shear thinning characteristic |
| CN115246703B (en) * | 2022-09-26 | 2022-11-25 | 华北理工大学 | Method for controlling particle size of blast furnace slag-based glass beads by utilizing shear thinning characteristic |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1185476C (en) | 2005-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Machin et al. | Viscosity studies of system CaO–MgO–Al2O3–SiO2: 1, 40% SiO2 | |
| Templin | Coefficient of volume expansion for petroleum waxes and pure n-paraffins | |
| Dingwell | Viscosity-temperature relationships in the system Na2Si2O5-Na4Al2O5 | |
| CN1450345A (en) | Instrument for determining rheological properties of Non-Newtonian viscosity fluid | |
| Pitt | The Marsh funnel and drilling fluid viscosity: a new equation for field use | |
| CN102830043B (en) | Equipment for detecting viscosity of lubricating oil and content of iron filings in lubricating oil | |
| Chen et al. | Viscosity measurements of “FeO”-SiO 2 slag in equilibrium with metallic Fe | |
| Husband et al. | The existence of static yield stresses in suspensions containing noncolloidal particles | |
| Porter et al. | A Study of Several Systems of the Type Laminar Flow Degradation of Polyisobutene. | |
| CN101343754A (en) | Aluminum cell electrolyte superheat degree detecting instrument | |
| Gautam et al. | An accurate determination of the shear rate for high-yield-stress drilling fluids using concentric cylinder Fann 35 viscometer data | |
| Linard et al. | Thermochemistry of nuclear waste glasses: an experimental determination | |
| Liu et al. | Shear relaxation characteristics of rock joints under stepwise loadings | |
| Stein et al. | New high-temperature rotational rheometer for silicate melts, magmatic suspensions, and emulsions | |
| Stearns et al. | Relationship of Glass Transition Temperature to Viscosity-Temperature Characteristics of Lubricants | |
| Leek et al. | An experimental investigation of the flow of an electro-rheological fluid in a Rayleigh step bearing | |
| Porter et al. | Recording High Shear Viscometer for Measurement at Shear Rates Near 106 Sec− 1 | |
| CN105938079B (en) | The apparent viscosity of foam aluminum melt and the real-time measurement apparatus of porosity and method | |
| Powell et al. | THE FLOW PROPERTIES AND MESOMORPHIC BEHAVIOR OF ANHYDROUS SOAPS AT ELEVATED TEMPERATURES: PART I. SODIUM STEARATE ABOVE 200 | |
| CN109406343B (en) | Method for obtaining rheological parameter range of wall putty construction | |
| Karam | Viscometers and their use | |
| CN108303441A (en) | A method of it measuring white tin in tin and tin alloy sample and is changed into gray tin ratio | |
| CN216309706U (en) | Automatic tester for standard consistency of cement | |
| Jiang et al. | Application of R/S Rheometer in Low Temperature Drilling Fluid Rheology Determination | |
| Wang | Test principle and measuring method of friction coefficient of drilling fluid lubrication tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |