CN105842120B - Piping physical experiments medium viscosity continuous measuring device and method - Google Patents
Piping physical experiments medium viscosity continuous measuring device and method Download PDFInfo
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- CN105842120B CN105842120B CN201610341032.7A CN201610341032A CN105842120B CN 105842120 B CN105842120 B CN 105842120B CN 201610341032 A CN201610341032 A CN 201610341032A CN 105842120 B CN105842120 B CN 105842120B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
- G01N11/14—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by using rotary bodies, e.g. vane
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Abstract
The invention discloses a kind of piping physical experiments medium viscosity continuous measuring device and methods, including support system, dynamical system, upper and lower part swingle, detecting head, photovoltaic sensing element and piping pilot system.When measurement, detecting head is placed in air, rotate top swingle, lower part swingle is rotated with top swingle, photovoltaic sensing element is disposed respectively on top, lower part swingle, and photovoltaic sensing element is rotated with swingle, when swingle rotation in upper and lower part tends towards stability, and touch switch is contacted when with the fixation photovoltaic sensing element in support system apart from most short position, it is poor that computer records the first time that two groups of photovoltaic sensing elements contact respectively up and down；Detecting head is inserted into piping pilot system water outlet, the second time difference that two groups of photovoltaic sensing elements contact respectively up and down is recorded by computer.The difference of two time differences and the viscosity of mud mixture are directly proportional, and the viscosity of mud mixture after piping can be found out by substituting into formula.
Description
Technical field
The present invention relates to a kind of piping physical experiments medium viscosity continuous measuring device and method and technology fields, especially
It is related to the rotary process measuring technique of liquid viscosity.
Background technique
When underground engineering and hydro-structure are chronically at the water surface or less, failure by piping frequent occurrence.Piping is endangered because of its engineering
Evil property is very big, becomes the Important Problems of hydraulic research always, and due to its complexity, mostly uses indoor model test
Means study, the viscosity measurement problem of mud mixture is always difficult point after wherein piping occurs.
Viscosity measurement is conventional analysis in industry and research field, and the physical principle used according to it is different, commonly
Viscosimeter can be divided into three types.The first is Stokes formula viscosimeter, passes through corpusculum movement in analysis liquid scope
And the drag on corpusculum is applied to calculate viscosity；Second is capillary viscosimeter, is transported by the capillary of fluid
It moves and records it to the kinetic parameter (position, speed or flow velocity) of time change to calculate viscosity；The third is rotary viscous
Degree meter, by inserting fluid into the cavity formed by fixed part and rotating cone body.Cone rotation causes in fluid
Rotary motion, viscosity can the ratio between rotation speed and the torque for being applied to cone obtain.Due to physical condition
Limitation, first two method is generally unsuitable for measurement non-newtonian fluid viscosity, and rotary viscosimeter can measure friction speed
The viscosity of lower non-newtonian fluid.But existing rotary viscosimeter is using artificial reading, and it is cumbersome that there are operations, and measuring speed is slow,
The disadvantages of error is big, and it is not suitable for the measurement of piping physical experiments medium viscosity.
Summary of the invention
It is simple the purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, providing a kind of structure, it is convenient and practical, it can use
In the device that piping physical experiments medium viscosity continuously measures, when measurement test in piping generating process mud mixture it is viscous
Degree variation, studies the generation of failure by piping, develops overall process, provides the data of science for the research of Piping phenomenon.
The technical solution adopted by the invention is as follows:
Piping physical experiments medium viscosity continuous measuring device, including support system, dynamical system, top swingle,
Lower part swingle, detecting head, photovoltaic sensing element and piping pilot system；It is equipped in the support system and connects above and below
The top swingle and lower part swingle connect, the top swingle are driven by dynamical system and lower part swingle are driven to revolve
Turn, lower part swingle is connected with detecting head；The side of the top swingle, lower part swingle respectively connects an optoelectronic induction
Element, two photovoltaic sensing elements with top swingle, lower part swingle rotation and rotate, and two photovoltaic sensing elements
Respectively cooperate respectively with the photovoltaic sensing element being mounted in support system, on top, swingle and the rotation of lower part swingle tend to
Stablize and the fixation photovoltaic sensing element distance that is mounted on the photovoltaic sensing element and support system on swingle most in short-term, note
The time of record this moment.
When starting measurement, first detecting head is placed in air, opens dynamical system, so that top swingle starts turning,
Lower part swingle is connected by wirerope with top swingle, and as top swingle rotates, swingle and lower part on top
Photovoltaic sensing element is disposed on swingle respectively, photovoltaic sensing element is rotated with swingle, when top swingle and lower part
When swingle rotation tends towards stability, and the fixation light inductance being mounted on the photovoltaic sensing element and support system on swingle
When answering element part distance most short position, the touch switch on computer is contacted, computer records two groups of photovoltaic sensing elements up and down
The first time contacted respectively is poor.Detecting head is inserted into piping pilot system water outlet, due to mud mixture after piping
Drag effect causes the revolving speed of detecting head and lower part swingle to be less than top swingle, can recorde at this time by computer
The second time difference that lower two groups of photovoltaic sensing elements contact respectively.The difference of two time differences and the viscosity of mud mixture are at just
Than the viscosity of mud mixture after piping can be found out by substituting into formula.
The support system, including scalable vertical bar and fixing bolt pass through the adjustable support system of scalable vertical bar
Height, and be fixed by fixing bolt.
The top swingle is connected with lower part swingle by a rope form element flexible, top swingle, lower part
Swingle, rope form element and photovoltaic sensing element, outside are provided with protective cover, can be effectively protected an important component.
The detecting head is fixed on lower part swingle lower end, guarantees the two revolving speed having the same.
Water inlet is arranged in the bottom of the piping pilot system, including water inlet, piping sample and water outlet, piping sample
Mouthful, water outlet is arranged in top；Piping physical model test failure by piping process can be carried out by the system.
The piping model test medium viscosity continuous measuring device application method, comprising the following steps:
(1) detecting head is placed in air, opens dynamical system, so that top swingle starts turning, lower part swingle
It is connected by wirerope with top swingle, and as top swingle rotates, is divided on top swingle and lower part swingle
Not An Zhi photovoltaic sensing element, photovoltaic sensing element rotates with swingle, and turns in top swingle and lower part swingle
Fixation photovoltaic sensing element distance on the dynamic photovoltaic sensing element and support system for tending towards stability and being mounted on swingle is most
In short-term, computer records the time of upper and lower two groups of photovoltaic sensing elements this moment respectively, and then seeking time is poor；
(2) piping physical experiments are carried out, persistently add water from water inlet to piping sample, and keep water outlet unimpeded,
Until observing Piping phenomenon near water outlet；
(3) piping pilot system is installed on the pedestal of support system, and passes through scalable vertical bar and fixing bolt tune
The height of whole support system, so that detecting head is located exactly near the water outlet of piping pilot system；
(4) it tends towards stability again to top swingle and lower part swingle revolving speed, and is mounted on the light inductance on swingle
It answers the fixation photovoltaic sensing element in element and support system apart from most in short-term, records upper and lower two groups of photoelectricity again by computer
The time of sensing element this moment, then seeking time is poor；Step (1), (4) two differences of time difference and the viscosity of mud mixture
It is directly proportional, find out the viscosity of mud mixture after piping.
(4) when top swingle and lower part swingle revolving speed tend towards stability again, two groups of light up and down are recorded by computer
The second time difference that electric induction element contacts respectively, the difference of two time differences and the viscosity of mud mixture are directly proportional, substitute into
Formula can find out the viscosity of mud mixture after piping.
Beneficial effects of the present invention are as follows:
Piping physical experiments medium viscosity continuous measuring device may be implemented muddy water in piping physical experiments and mix
Object viscosity continuously measures, and mud mixture viscosity is difficult to precise measurement after solving the problems, such as piping generation.Phase is studied with forefathers
Than the piping physical experiments medium viscosity continuous measuring device obtained closer to practical application and test method structure letter
It is single, convenient for operation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is schematic structural view of the invention；
Wherein 1. support system；2. scalable vertical bar；3. fixing bolt；4. dynamical system；5. top swingle；6. lower part
Swingle；7. wirerope；8. detecting head；9. fixed photovoltaic sensing element；10. photovoltaic sensing element；11. protective cover；12. piping
Pilot system；13. water inlet；14. piping sample；15. water outlet.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
In Fig. 1, piping model test medium viscosity continuous measuring device, the device include support system 1, dynamical system 4, on
Portion's swingle 5, lower part swingle 6, wirerope 7, detecting head 8, photovoltaic sensing element 9 and 10, piping pilot system 12.
The top swingle 5 and lower part swingle 6 connected above and below, the top rotation are installed in support system 1
Bar 5 is driven by dynamical system 4 and lower part swingle 6 is driven to rotate, and the bottom end of lower part swingle 6 is connected with detecting head, and is guaranteed
The two revolving speed having the same；
On top swingle 5, lower part swingle 6 side respectively connect a photovoltaic sensing element 10, two optoelectronic inductions
Element 10 with top swingle, lower part swingle rotation and rotate, and two photovoltaic sensing elements 10 respectively respectively with peace
Fixation photovoltaic sensing element 9 in support system cooperates, and on top, swingle and the rotation of lower part swingle tend towards stability, and
The fixation photovoltaic sensing element part on the photovoltaic sensing element and support system on swingle is mounted on apart from most in short-term, contact is touched
Dynamic switch, it is poor that computer records the first time that upper and lower two groups of photovoltaic sensing elements contact respectively, specific as follows:
When starting measurement, first detecting head is placed in air, opens dynamical system, so that top swingle starts turning,
Lower part swingle is connected by wirerope with top swingle, and as top swingle rotates, swingle and lower part on top
Photovoltaic sensing element is disposed on swingle respectively, photovoltaic sensing element is rotated with swingle, when top swingle and lower part
When swingle rotation tends towards stability, and touching is contacted when with the fixation photovoltaic sensing element part distance most short position in support system
Dynamic switch, it is poor that computer records the first time that two groups of photovoltaic sensing elements contact respectively up and down；By detecting head insertion piping examination
Check system water outlet causes the revolving speed of detecting head and lower part swingle small due to the drag effect of mud mixture after piping
In top swingle, the second time difference that upper and lower two groups of photovoltaic sensing elements contact respectively can recorde by computer at this time.
The difference of two time differences and the viscosity of mud mixture are directly proportional, and the viscous of mud mixture after piping can be found out by substituting into formula
Degree.
Implementation is as follows:
Photovoltaic sensing element one kind is fixed in support system, and another kind is mounted on swingle and as swingle does circle
All rotary motions have a distance fixed photovoltaic sensing element shortest position during photoelectric cell rotates a circle, this
It can be realized by installing small-sized distance-sensor or laser ranging system on sensing element, when distance most causes in short-term
Computer touch switch is connected, computer will record the time of this contact, and upper and lower two groups of photovoltaic sensing elements so record,
But due to the drag effect of air and mud mixture, the time of contact of upper and lower two groups of photovoltaic sensing elements, there are a timings
Difference, the data that this time difference as needs to acquire.
Further, support system 1 includes scalable vertical bar 2 and fixing bolt 3, passes through the adjustable branch of scalable vertical bar
The height of frame system, and be fixed by fixing bolt.
Further, top swingle 5 and lower part swingle 6 are connected by wirerope 7 so that lower part swingle 6 with
Top swingle 5 is rotated.
Further in order to be effectively protected each important component, swingle, lower part swingle, 7 and of wirerope on top
Fixed photovoltaic sensing element 9, photovoltaic sensing element 10 outside be provided with protective cover 11, an important portion can be effectively protected
Part.
Further, top swingle, lower part swingle connect vertically above and below, and photovoltaic sensing element 10 is horizontally arranged at
Top swingle, lower part swingle, fixed photovoltaic sensing element 9 are horizontally arranged on the scalable vertical bar 2 of support system；
Fixed photovoltaic sensing element 9 and photovoltaic sensing element 10 respectively include two, and a light is connected on the swingle of top
Electric induction element 10, it is corresponding with a fixed photovoltaic sensing element 9 in this photovoltaic sensing element 10；Connect on the swingle of lower part
A photovoltaic sensing element 10 is connect, it is corresponding with a fixed photovoltaic sensing element 9 in this photovoltaic sensing element 10.
Piping pilot system 12, including water inlet 13, piping sample 14 and water outlet 15, the bottom of piping sample be arranged into
Water outlet 15 is arranged in the mouth of a river 13, top；Piping physical model test failure by piping process can be carried out by the system；
Specifically, water outlet 15 is located at a lateral roof of piping sample 14.
The method that piping model test medium viscosity continuously measures is carried out using above-mentioned apparatus, comprising the following steps:
(1) detecting head 8 is placed in air, opens dynamical system 4, so that top swingle 5 starts turning, lower part rotation
Bar 6 is connected by wirerope 7 with top swingle 5, and as top swingle 5 rotates, swingle 5 and lower part rotation on top
Photovoltaic sensing element 10 is disposed on bar 6 respectively, photovoltaic sensing element 10 is rotated with swingle, when top swingle 5 is under
The rotation of portion's swingle 6 is when tending towards stability, and when with 9 distance most short positions of fixation photovoltaic sensing element in support system 1
Touch switch is contacted, it is poor that computer records the first time that two groups of photovoltaic sensing elements contact respectively up and down.
(2) carry out piping physical experiments, persistently add water from water inlet 13 to piping sample 14, and keep water outlet 15
It is unimpeded, until observing Piping phenomenon near water outlet 15.
(3) piping pilot system 12 is installed on the pedestal of support system 1, and pass through scalable vertical bar 2 and fixed spiral shell
Bolt 3 adjusts the height of support system 1, so that detecting head 8 is located exactly near the water outlet 15 of piping pilot system 12；
(4) when top swingle 5 and 6 revolving speed of lower part swingle tend towards stability again, by two groups up and down of computer record
The second time difference that photovoltaic sensing element contacts respectively, the difference of two time differences and the viscosity of mud mixture are directly proportional, generation
Enter formula η=K (Δ t, T, C) η0；Wherein η0With η respectively indicate air viscosity and mud mixture to viscosimetric；COEFFICIENT K
Value in addition to the Dominated Factors of record time difference, also have relationship with measurement experiment conditions and environment etc., need according to the actual situation
Value；Δ t indicates the difference of two time differences, and T indicates temperature, and C indicates test constant；After piping can be found out according to the formula
The viscosity of mud mixture.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (2)
1. piping physical experiments medium viscosity continuous measuring device, including support system, which is characterized in that
The top swingle, lower part swingle and piping pilot system being vertically connected with, institute are installed in the support system
Top swingle is stated to be connected by wirerope with lower part swingle；Under the top swingle is driven and is driven by dynamical system
The rotation of portion's swingle, lower part swingle are connected with detecting head, and the detecting head is fixed on lower part swingle lower end, and the two has
Identical revolving speed；
The side of the top swingle, lower part swingle respectively connects a photovoltaic sensing element, two photovoltaic sensing elements
With top swingle, lower part swingle rotation and rotate, and two photovoltaic sensing elements respectively be mounted on support system
On fixation photovoltaic sensing element cooperation；The top swingle, lower part swingle, wirerope, fixed photovoltaic sensing element
The outside of photovoltaic sensing element is provided with protective cover；
The piping pilot system includes piping sample, and water inlet is arranged in the bottom of piping sample, and water outlet is arranged in top；Institute
Support system, including scalable vertical bar and fixing bolt are stated, the height of support system can be adjusted by scalable vertical bar, and is passed through
Fixing bolt is fixed.
2. the method measured using piping physical experiments medium viscosity continuous measuring device described in claim 1,
It is characterized in that, comprising the following steps:
(1) detecting head is placed in air, opens dynamical system, so that top swingle starts turning, lower part swingle passes through
Wirerope is connected with top swingle and as top swingle rotates, and disposes respectively on top swingle and lower part swingle
Photovoltaic sensing element, photovoltaic sensing element are rotated with swingle, and are tended in top swingle and the rotation of lower part swingle
Stablize and the fixation photovoltaic sensing element distance that is mounted on the photovoltaic sensing element and support system on swingle most in short-term, meter
Calculation machine records the time of upper and lower two groups of photovoltaic sensing elements this moment respectively, and then seeking time is poor；
(2) piping physical experiments are carried out, persistently add water from water inlet to piping sample, and keep water outlet unimpeded, until
Piping phenomenon is observed near water outlet；
(3) piping pilot system is installed on the pedestal of support system, and passes through scalable vertical bar and fixing bolt adjustment branch
The height of frame system, so that detecting head is located exactly near the water outlet of piping pilot system；
(4) it tends towards stability again to top swingle and lower part swingle revolving speed, and is mounted on the member of the optoelectronic induction on swingle
Fixation photovoltaic sensing element distance on part and support system is recorded upper and lower two groups of optoelectronic inductions by computer most in short-term again
The time of element this moment, then seeking time is poor；The viscosity of step (1), the difference of (4) two time differences and mud mixture is at just
Than finding out the viscosity of mud mixture after piping.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108827831A (en) * | 2018-06-07 | 2018-11-16 | 深圳市鸿曙科技有限公司 | Oscillatory type viscosity apparatus and its Detection Method of Liquid Viscosity |
| CN114944205B (en) * | 2022-05-20 | 2024-03-29 | 中交三航(南通)海洋工程有限公司 | Concrete mixing proportion optimization method |
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| CN201117150Y (en) * | 2007-09-24 | 2008-09-17 | 浙江大学 | Soil mass infiltration destruction phenomenon demonstration and critical hydraulic gradient measuring instrument |
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| CN103149103A (en) * | 2013-02-25 | 2013-06-12 | 上海长园电子材料有限公司 | Device and method for detecting impact resistance property of heat-shrinkable sleeve product |
| CN104697899A (en) * | 2015-03-18 | 2015-06-10 | 武汉钢铁(集团)公司 | Rotation-method viscosity measurement device |
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| JPS56150328A (en) * | 1980-04-24 | 1981-11-20 | San Ei Chem Ind Ltd | Precision measuring method for interfacial viscosity |
| CN201117150Y (en) * | 2007-09-24 | 2008-09-17 | 浙江大学 | Soil mass infiltration destruction phenomenon demonstration and critical hydraulic gradient measuring instrument |
| JP2011148890A (en) * | 2010-01-21 | 2011-08-04 | Koichi Neishi | Continuous waste oil fuelization apparatus to produce homogeneous emulsion mixed fuel from cleaned oil derived from various state of waste oil, by-product oil and resource vegetable oil, and mineral oil fuel |
| CN102012353A (en) * | 2010-09-27 | 2011-04-13 | 河海大学 | Measuring device and method of apparent viscosity of saturated sand in high pore pressure ratio state |
| CN102914489A (en) * | 2012-11-08 | 2013-02-06 | 河北联合大学 | Device and method for measuring viscosity electromagnetic property of covering slag under high-temperature state |
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