CN204694589U - A kind of device for measuring slip casting limiting shearing stress - Google Patents
A kind of device for measuring slip casting limiting shearing stress Download PDFInfo
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- CN204694589U CN204694589U CN201520469830.9U CN201520469830U CN204694589U CN 204694589 U CN204694589 U CN 204694589U CN 201520469830 U CN201520469830 U CN 201520469830U CN 204694589 U CN204694589 U CN 204694589U
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- pipeline
- optical fiber
- slip casting
- shearing stress
- fiber grid
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Abstract
The utility model discloses a kind of device for measuring slip casting limiting shearing stress, comprise all steel pipeline, small pipeline pump, optical fiber grid, pipeline injection point, data processing display screen, encapsulated holes, stainless steel substrates and blocking pipe mouth, the two ends of described all steel pipeline are connected with small pipeline pump, described pipeline injection point is located at the bottom of all steel pipeline, described optical fiber grid is located at the inside of all steel pipeline, and described data processing display screen is connected by electrical signals with between optical fiber grid.The shear stress numerical value of slurries should can be read at any time in the device measuring slip casting limiting shearing stress, can realize continuity, periodically surveying and calculating, structure is simple, is convenient to regulate power, small pipeline pump is connected by flange with pipeline, is convenient to dismounting and cleaning and safeguards.
Description
Technical field
The utility model belongs to Material Testing Technology field, is specifically related to a kind of device for measuring slip casting limiting shearing stress.
Background technology
When the water cement ratio of slip casting is higher, belong to Newtonian fluid.When its water cement ratio acquires a certain degree, slurries change Bingham fluid into.In the limiting shearing stress experiment of measuring certain Bingham fluid, often wanted expensive manpower and materials, and result is very inaccurate, particularly difficult especially when continuity measures the limiting shearing stress of certain slip casting in the past.Therefore, make serum recycle flow and can measure its correlation parameter in time in change procedure in time, meet the requirement of continuity test.The limiting shearing stress research of current Bingham body is still more immature, is mostly that the experimental formula derived by Bingham model is to calculate the limiting shearing stress of Bingham body, does not have application standard widely, and mostly not too accurate, and error is larger.Be in the Chinese patent literature of CN102323186A at publication number, provide a kind of method of kapillary fluid measured shear stress, it is cut vertically by capillary die to be divided at least three sections, i.e. entrance, interlude, and outlet section, when sample fluid is in kapillary during steady flow, only measure sample to the acting force of capillary die interlude, according to acting force and principle the obtains shearing force that sample is subject at capillary die interlude tube wall place such as reacting force is mutual, again divided by the capillary surface area of mouth mould interlude, the shear stress of this place's sample can be tried to achieve.But this method is too loaded down with trivial details, and be confined to the shear stress of fluid, and the relevant test method of the limiting shearing stress about Bingham fluid can not be provided.Be in the Chinese patent literature of CN202614637U at publication number, provide a kind of method for surveying magnetic rheological body shear stress, being confined to magnetic rheological body equally, and the limiting shearing stress about Bingham fluid can not be provided equally.
Utility model content
The purpose of this utility model is to provide a kind of device measuring slip casting limiting shearing stress for continuity, not only in the process of setting of slip casting, measurement that is continuous, the cycle is realized to shear stress, and set up system of equations by Bingham model thus obtain its limiting shearing stress and the coefficient of viscosity.For the parameters of test slip casting and other Bingham fluids provides more convenient device more efficiently, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme: a kind of device for measuring slip casting limiting shearing stress, comprise all steel pipeline, small pipeline pump, optical fiber grid, pipeline injection point, data processing display screen, encapsulated holes, stainless steel substrates and blocking pipe mouth, the two ends of described all steel pipeline are connected with small pipeline pump, described pipeline injection point is located at the bottom of all steel pipeline, described optical fiber grid is located at the inside of all steel pipeline, described data processing display screen is connected by electrical signals with between optical fiber grid.
Preferably, the pipe interior diameter 100mm of described stainless steel pipes, body annular interior diameter 1000mm.
Preferably, described small pipeline pump is connected with pipe body by flange, and power size is adjustable structure.
Preferably, described optical fiber grid is fixedly connected with the mouth of pipe on the upside of all steel pipeline by coordinating.
Preferably, the encapsulated holes in described optical fiber grid and the stainless steel substrates on blocking pipe mouth are connected.
Preferably, described optical fiber grid is " work " word slice formula encapsulating structure, and side is tangent with test slurries flow direction to being placed in all steel pipeline.
Technique effect of the present utility model and advantage: this proving installation can read the shear stress numerical value of slurries at any time, continuity, periodically surveying and calculating can be realized, structure is simple, be convenient to regulate power, small pipeline pump is connected by flange with pipeline, is convenient to dismounting and cleaning and safeguards.
Accompanying drawing explanation
Fig. 1 is structural plan of the present utility model schematic diagram;
Fig. 2 is the vertical view of the utility model structural pipeline pump;
Fig. 3 is the front view of the utility model structural pipeline pump;
Fig. 4 is the utility model bragg grating principle schematic;
Fig. 5 is the utility model fiber-optic grating sensor principle schematic;
Fig. 6 is the fiber grating schematic diagram of the utility model " work " word slice formula encapsulating structure.
In figure: 1, all steel pipeline; 2, small pipeline pump; 3, optical fiber grid; 4, pipeline injection point; 5, data processing display screen; 6, encapsulated holes; 7, stainless steel substrates and 8, blocking pipe mouth.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model provides a kind of device for measuring slip casting limiting shearing stress as shown in figures 1 to 6, comprise all steel pipeline 1, small pipeline pump 2, optical fiber grid 3, pipeline injection point 4, data processing display screen 5, encapsulated holes 6, stainless steel substrates 7 and blocking pipe mouth 8, the two ends of all steel pipeline 1 are connected with small pipeline pump 2, the pipe interior diameter 100mm of stainless steel pipes 1, body annular interior diameter 1000mm, small pipeline pump 2 to be connected with pipe body by flange and power size is adjustable structure, pipeline injection point 4 is located at the bottom of all steel pipeline 1, optical fiber grid 3 is located at the inside of all steel pipeline 1, be connected by electrical signals between data processing display screen 5 with optical fiber grid 3, optical fiber grid 3 is fixedly connected with the mouth of pipe on the upside of all steel pipeline 1 by coordinating, optical fiber grid 3 is " work " word slice formula encapsulating structure, side is tangent with test slurries flow direction to being placed in all steel pipeline 1, encapsulated holes 6 in optical fiber grid is connected with the stainless steel substrates 7 on blocking pipe mouth 8.
Principle of work: the slurries be newly stirred are in entrance 4 flow in pipes, reasonable adjusting in-line pump 2 power record Cable Power Computation and go out slurries flow gradient according to demand after sealing entrance, read the numerical value of data display screen 5 simultaneously, now again regulate in-line pump 2 power rapidly and again repeat above-mentioned steps, shear stress and the flow gradient of this kind of slurries are tested in the time break experimentally designed, finally by the later stage data processing and calculate the limiting shearing stress of this kind of slurries, the principle of this proving installation is: when the water cement ratio of slip casting is higher, belong to Newtonian fluid, when its water cement ratio acquires a certain degree, slurries change Bingham fluid into, by Bingham model fundamental formular:, it is shear stress in formula, for limiting shearing stress, for the coefficient of viscosity of slurries, for the flow gradient of slurries, each moment test two groups and, thus set up system of equations:, by above system of equations, can calculate the coefficient of viscosity in 1 moment and the limiting shearing stress of this kind of slurries, in order to test these slurries, the coefficient of viscosity in the same time and shear stress or parameters over time, can design time intervals according to demand, at set intervals these slurries are once tested, also can reduce the error of the limiting shearing stress result obtained simultaneously.
Last it is noted that the foregoing is only preferred embodiment of the present utility model; be not limited to the utility model; although be described in detail the utility model with reference to previous embodiment; for a person skilled in the art; it still can be modified to the technical scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; all within spirit of the present utility model and principle; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. one kind for measuring the device of slip casting limiting shearing stress, comprise all steel pipeline (1), small pipeline pump (2), optical fiber grid (3), pipeline injection point (4), data processing display screen (5), encapsulated holes (6), stainless steel substrates (7) and blocking pipe mouth (8), it is characterized in that: the two ends of described all steel pipeline (1) are connected with small pipeline pump (2), described pipeline injection point (4) is located at the bottom of all steel pipeline (1), described optical fiber grid (3) is located at the inside of all steel pipeline (1), described data processing display screen (5) is connected by electrical signals with between optical fiber grid (3).
2. a kind of device for measuring slip casting limiting shearing stress according to claim 1, is characterized in that: the pipe interior diameter 100mm of described stainless steel pipes (1), body annular interior diameter 1000mm.
3. a kind of device for measuring slip casting limiting shearing stress according to claim 1, is characterized in that: described small pipeline pump (2) to be connected with pipe body by flange and its power size is adjustable structure.
4. a kind of device for measuring slip casting limiting shearing stress according to claim 1, is characterized in that: described optical fiber grid (3) is fixedly connected with the mouth of pipe of all steel pipeline (1) upside by coordinating.
5. a kind of device for measuring slip casting limiting shearing stress according to claim 1, is characterized in that: the encapsulated holes (6) in described optical fiber grid is connected with the stainless steel substrates (7) on blocking pipe mouth (8).
6. a kind of device for measuring slip casting limiting shearing stress according to claim 1, it is characterized in that: described optical fiber grid (3) is " work " word slice formula encapsulating structure, side is tangent with test slurries flow direction to being placed in all steel pipeline (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520469830.9U CN204694589U (en) | 2015-07-01 | 2015-07-01 | A kind of device for measuring slip casting limiting shearing stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520469830.9U CN204694589U (en) | 2015-07-01 | 2015-07-01 | A kind of device for measuring slip casting limiting shearing stress |
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| Publication Number | Publication Date |
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| CN204694589U true CN204694589U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520469830.9U Expired - Fee Related CN204694589U (en) | 2015-07-01 | 2015-07-01 | A kind of device for measuring slip casting limiting shearing stress |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181528A (en) * | 2015-10-28 | 2015-12-23 | 中国石油大学(北京) | Rheological property determinator |
-
2015
- 2015-07-01 CN CN201520469830.9U patent/CN204694589U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181528A (en) * | 2015-10-28 | 2015-12-23 | 中国石油大学(北京) | Rheological property determinator |
| CN105181528B (en) * | 2015-10-28 | 2017-11-14 | 中国石油大学(北京) | A kind of rheological behavior determines device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20160701 |
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| CF01 | Termination of patent right due to non-payment of annual fee |