CN204679387U - The dynamical interfacial tension instrument of a kind of high speed, controllable temperature - Google Patents
The dynamical interfacial tension instrument of a kind of high speed, controllable temperature Download PDFInfo
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- CN204679387U CN204679387U CN201520312888.2U CN201520312888U CN204679387U CN 204679387 U CN204679387 U CN 204679387U CN 201520312888 U CN201520312888 U CN 201520312888U CN 204679387 U CN204679387 U CN 204679387U
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Abstract
The utility model relates to the dynamical interfacial tension instrument of a kind of high speed, controllable temperature, comprise the optics rotation platform of step motor control, microsyringe, three-way valve, syringe pump assembly, telecentric microscope, high-speed camera, bracing frame, electric box, pH effect platform assembly, base, web joint, also comprise voltage ceramic cavity, voltage ceramic cavity is located at below syringe pump assembly, voltage ceramic cavity rear end is connected to three-way valve by kapillary and then is connected with syringe pump assembly, and voltage ceramic cavity front end is by female Luer connecting needle.The utility model solves that the precision of dynamic measurement of maximum bubble method surface tension instrument and kapillary platen press surface tension instrument is poor, response speed is general, the problem of uncontrollable temperature.
Description
Technical field
This patent discloses the dynamical interfacial tension instrument of a kind of high speed, controllable temperature.The dynamical interfacial tension instrument of the high speed that the utility model proposes, controllable temperature have employed piezoelectric ceramics nanopositioning stage as main control unit, the drop surface that formation one is new within the sub-millisecond time, dynamic test newly forms liquid-gas or the liquid-liquid interface tension force on surface.Camera system have employed source of parallel light and telecentric lens, and takes Liquid particle image by high-speed camera.The technology that this patent relates to, can be widely used in the industry-by-industry fields such as daily use chemicals, agricultural chemicals, petrochemical complex, surfactant research, fire-fighting, electric power, have high promotional value.
Background technology
Interfacial tension is one of important parameter of the physicochemical property of material.Test fluid-gas or liquid-liquid dynamical interfacial tension are extremely important for very many practical applications.The various industries such as foaming, micro emulsion, liquid crystal, alloy, multi-phase fluid, agricultural chemicals, printing, cosmetics, oil recovery all need to investigate dynamical interfacial tension value.And presently, dynamical interfacial tension measuring technology also rests on the stage of dynamic surface tension test.Dynamic surface tension refers to the capillary dynamic change between liquid-gas, adsorption etc.And dynamical interfacial tension refers to that liquid-liquid is even liquid-solid, the dynamic change of the interfacial tension of liquid-liquid-solid, Interfacial Adsorption phenomenon etc.For the measuring technology of dynamic surface tension, in professional book both domestic and external, document, all there is a lot of description.As " Physical chemistry of surfaces " (John Wiley@Son of Arthur.W.Adamson, Inc, 1997) and " the Fundamentals of interface and colloid science of J.Lyklema, Vol 3:Liquid-fluid interfaces " (Academic press, 2000) all describe in detail and comprise flow method (Flow methods), capillary wave (capilary waves), maximum bubble method (maximum bubble pressure method) and drop-volume method (Maximum drop volume method) etc.These methods exist in actual test process be subject to extraneous factor interference, measured value precision general, cannot the defect of test fluid-light-liquid interfacial tension.At present, business-like dynamic surface tension instrument is mainly the instrument of maximum bubble method and drop-volume method, comprises the company such as German Kruss, Sweden Biolin, German site, Japanese Kyowa, German Lauda.And in these two kinds of methods, comparatively common with maximum bubble method application.Compared to additive method, maximum bubble method by Young-Laplace equation after empirical value correction, calculates surface tension value after have employed pressure transducer test pressure difference.Such test process takes full advantage of the high speed of pressure transducer, highly sensitive advantage comparatively speaking, can sense the surface tension variations obtained than time faster.Business-like instrument display, its reaction velocity can reach 5ms(0.005s the soonest).But, because test philosophy determines, to there is in the complicated correction such as such as kapillary material, capillary diameter, extra pressure, Bubble Formation Process the various problems affecting measured value such as whether bubble interval time and bubble disengagement time consistent in actual applications, thus had a strong impact on the assessment of Dynamic Adsorption.From actual test result, the data of maximum bubble method seldom have 0.01 second such rank, be usually all second level many.Thus it is bad to also demonstrate that it is applied to dynamic test effect.
2011, German R.Miller summed up the correlation technique of the instrument of maximum bubble method as above, drop-volume method in " bubble and drop interfaces " (VSP, 2011).Meanwhile, in book, emphasis has carried out comprehensive summing up (former book the 143rd page) to kapillary platen press dynamic surface tension (the Capillary pressure tensiometry) measuring technology that it proposes for a long time.This technology is attempted the one of dynamical interfacial tension test, also achieves certain success.The core of kapillary platen press is the vertex curvature radius testing capillary pressure difference and shooting image, calculates dynamical interfacial tension (certainly, surface tension test is also completely passable).Its advantage be equally utilize pressure transducer high sensitivity, respond fast advantage, but shortcoming is also clearly, comprising: the first, when calculated value, need to calculate vertex curvature radius by image method, the data syn-chronization of these data and pressure transducer reduces immediately; The second, most of drop, when forming hanging drop (pendant drop), is difficult to ensure that it meets the Young-Laplace equation simplified most, i.e. surface tension value σ=Δ P/2*R
0, so the degree of accuracy of measured value greatly reduces.In the test data of reality, we also can see, during test, R.Miller seldom provides the reference data of at a high speed absorption, and common Dynamic Adsorption is level second.The structure of R.Miller to kapillary platen press dynamic surface tension instrument is described, and have employed the structure of syringe pump and piezoelectric ceramics piston (piezo-piston).Same, business-like instrument is as also used similar structure in the instrument of German Kruss, Dataphysics.Its notable feature is because piezoelectric ceramics piston (piezoelectric ceramics vibration sheet) itself can be charged, so droplet-shaped becomes cavity to form with similar working of plastics such as polyoxymethylene, and nonmetal parts.Thus, effective control temperature is its obvious shortcoming.And the hermetically-sealed construction of piezoelectric ceramics piston cannot adapt to the mechanical motion of (Millisecond) at a high speed.And in actual applications, simple piezoelectric ceramics piston structure is easy to cause exhaust clean, there is air bubble problem, thus the conduction of the quick pressure formed of impact.
US Patent No. 2009/0133480A1(2009 May 8) " Methods and device for fast creation of fluid interfaces and used of this device for determination of liquid-liquid and liquid-gas interfacial properties " be described for dynamic surface/interfacial tension measuring technology equally, is referred to the kapillary platen press (CPM) that rotational symmetry image analysis (ADSA) and R.Miller mention.But the core of its patent is the mode that three kinds of drops are formed: protection drop formula (Protected drop method; PDM), drop formula (Hidden drop method is hidden; HDM) and protection bubble type (Protected bubble method, PBM).There is not any relation in the dynamical interfacial tension instrument that these three methods and this patent are mentioned and method of testing technology, does not affect the novelty of this patent.
For solving as above various problem, this patent discloses the dynamical interfacial tension instrument of a kind of high speed, controllable temperature.The dynamical interfacial tension instrument of the high speed that the utility model proposes, controllable temperature have employed piezoelectric ceramics nanopositioning stage as main control unit, the drop surface that formation one is new within the sub-millisecond time, dynamic test newly forms liquid-gas or the liquid-liquid interface tension force on surface.Camera system have employed source of parallel light and telecentric lens, and takes Liquid particle image by high-speed camera.The technology that this patent relates to, can be widely used in the industry-by-industry fields such as daily use chemicals, agricultural chemicals, petrochemical complex, surfactant research, fire-fighting, electric power, have high promotional value.
Summary of the invention
For above-mentioned situation, the utility model provides the dynamical interfacial tension instrument of a kind of high speed, controllable temperature, the precision of dynamic measurement of solution maximum bubble method surface tension instrument and kapillary platen press surface tension instrument is poor, response speed is general, the problem of uncontrollable temperature, we have made innovation to the critical component of the structure of dynamical interfacial tension instrument, material therefor, employing.
To achieve these goals, the technical solution of the utility model is as follows:
At a high speed a kind of, the dynamical interfacial tension instrument of controllable temperature, comprise the optics rotation platform of step motor control, microsyringe, three-way valve, syringe pump assembly, telecentric microscope, high-speed camera, bracing frame, electric box, pH effect platform assembly, base, web joint, chassis left side is provided with optics rotation platform and the electric box of step motor control, telecentric microscope and high-speed camera is provided with on the right side of base, syringe pump assembly is provided with above base, pH effect platform assembly is provided with in the middle of base, optics rotation platform is connected by the telecentric microscope of web joint and base opposite side and high-speed camera fixed sturcture, form a structure that can vertically rotate, it is characterized in that, also comprise voltage ceramic cavity, voltage ceramic cavity is located at below syringe pump assembly, voltage ceramic cavity rear end is connected to three-way valve by kapillary and then is connected with syringe pump assembly, voltage ceramic cavity front end is by female Luer connecting needle.
As preferred embodiment, described voltage ceramic cavity comprises cavity fixed screw, piezoelectric ceramics positioning table, cavity holder, cavity pressing plate, high resiliency O-ring seals, cavity oscillation plate, cavity pressure cap, recirculated water cavity, cavity cover plate, circulating water chennel fast interface, cavity stiffening plate, recirculated water cavity is divided into vibration cavity and temperature control chamber, cavity oscillation plate is provided with in vibration cavity, cavity pressing plate is provided with outside cavity oscillation plate, the concussion handle of cavity oscillation plate stretches out cavity pressing plate and is fixed on piezoelectric ceramics positioning table side by fixed screw, piezoelectric ceramics positioning table opposite side is fixed on cavity holder, side, temperature control chamber is provided with cavity cover plate, two circulating water chennel fast interfaces are arranged at cavity cover plate top.
In another preferred embodiment, described voltage ceramic cavity comprises oscillator plate pressing plate, piezoelectric ceramics vibration sheet, high resiliency O-ring seals, chamber body, temperature control pressing plate, circulating water chennel fast interface, converting interface, chamber body side is vibration cavity, and opposite side is temperature control chamber; Be provided with piezoelectric ceramics vibration sheet in vibration cavity, the inner side of piezoelectric ceramics vibration sheet is provided with high resiliency O-ring seals, is provided with oscillator plate pressing plate outside vibration cavity; Be provided with temperature control pressing plate outside temperature control chamber, temperature control top of chamber is provided with circulating water chennel fast interface, is provided with converting interface bottom chamber body, and converting interface is connected with female Luer.
In another preferred embodiment, described pH effect platform assembly comprises one dimensional optical translation stage, the one dimension tilt adjustments frame of differential head control, the constant-temperature sample pool with quartz glass view window, the two-dimensional level adjustment platform of differential head control, the one dimension lifting optical translation platform of differential head control, the one dimensional optical translation stage of Electric Machine Control of Electric Machine Control.
In another preferred embodiment, the body pipeline structure in described voltage ceramic chamber comprises feed liquor interface, water influent pipeline, water influent pipeline fluid hole, fluid hole, the second feed liquor interface, fluid pipeline, liquid outlet, described feed liquor interface is located at the lower left side of piezoelectric ceramics cavity, feed liquor interface is connected with the water influent pipeline fluid hole in chamber body by water influent pipeline, second feed liquor interface is positioned in the middle part of chamber body, fluid pipeline one end is located at inside the second feed liquor interface, the other end of fluid pipeline is connected to liquid outlet, and liquid outlet is higher than the second feed liquor interface.
The utility model has the advantages that: the precision of dynamic measurement of solution maximum bubble method surface tension instrument and kapillary platen press surface tension instrument is poor, response speed is general, the problem of uncontrollable temperature, we have made innovation to the critical component of the structure of dynamical interfacial tension instrument, material therefor, employing.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model.
Fig. 2 is the front view of voltage ceramic cavity in the utility model one embodiment.
Fig. 3 is the cut-open view of Fig. 2.
Fig. 4 is the front view of voltage ceramic cavity in another embodiment of the utility model.
Fig. 5 is the cut-open view of Fig. 4.
Fig. 6 is the pipeline structure figure of the utility model voltage ceramic cavity.
In the drawings: the optics rotation platform of 1-step motor control; 2-microsyringe; 3-three-way valve; 4-piezoelectric ceramics cavity; 5-syringe pump assembly; The one dimensional optical translation stage of 6-Electric Machine Control; 7-telecentric microscope; 8-high-speed camera; The one dimension tilt adjustments frame that 9-differential head controls; 10-web joint; 11-has the constant-temperature sample pool of quartz glass view window; The two-dimensional level adjustment platform that 12-differential head controls; The one dimension lifting optical translation platform that 13-differential head controls; The one dimensional optical translation stage of 14-Electric Machine Control; The one dimensional optical translation stage of 15-Electric Machine Control; 16-directional light LED background light source; The one dimension pitch adjusting table that 17-differential head controls; 18-base; 41-cavity fixed screw; 42-piezoelectric ceramics positioning table; 43-cavity fixed screw; 44-cavity holder; 45-cavity pressing plate; 46-high resiliency O-ring seals; 47-cavity oscillation plate; 48-cavity pressure cap; 49-recirculated water cavity; 410-cavity cover plate; 411-high resiliency O-ring seals; 412-circulating water chennel fast interface; 413-cavity stiffening plate; 414-female Luer; 415-syringe needle; 401-oscillator plate pressing plate; 402-piezoelectric ceramics vibration sheet; 404-chamber body; 405-temperature control pressing plate; 406-circulating water chennel fast interface; 407-converting interface; 61-feed liquor interface, 62-water influent pipeline, 63-water influent pipeline fluid hole, 65-fluid hole, 66-second feed liquor interface, 67-fluid pipeline, 68-liquid outlet.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
See Fig. 1 ~ Fig. 6, at a high speed a kind of, the dynamical interfacial tension instrument of controllable temperature, comprise the optics rotation platform of step motor control, microsyringe, three-way valve, syringe pump assembly, telecentric microscope, high-speed camera, bracing frame, electric box, pH effect platform assembly, base, web joint, chassis left side is provided with optics rotation platform and the electric box of step motor control, telecentric microscope and high-speed camera is provided with on the right side of base, syringe pump assembly is provided with above base, pH effect platform assembly is provided with in the middle of base, optics rotation platform is connected by the telecentric microscope of web joint and base opposite side and high-speed camera fixed sturcture, form a structure that can vertically rotate, it is characterized in that, also comprise voltage ceramic cavity, voltage ceramic cavity is located at below syringe pump assembly, voltage ceramic cavity rear end is connected to three-way valve by kapillary and then is connected with syringe pump assembly, voltage ceramic cavity front end is by female Luer connecting needle.
Also comprise the one dimension tilt adjustments frame that differential head controls, the one dimension tilt adjustments that differential head controls is set up on the right side of bracing frame, and the one dimension tilt adjustments frame that differential head controls is provided with telecentric microscope and high-speed camera.
Also comprise the one dimension pitch adjusting table of directional light LED background light source and the control of differential head, directional light LED background light source is located on rear side of the one dimension pitch adjusting table of differential head control.
As preferred embodiment, described voltage ceramic cavity comprises cavity fixed screw, piezoelectric ceramics positioning table, cavity holder, cavity pressing plate, high resiliency O-ring seals, cavity oscillation plate, cavity pressure cap, recirculated water cavity, cavity cover plate, circulating water chennel fast interface, cavity stiffening plate, recirculated water cavity is divided into vibration cavity and temperature control chamber, cavity oscillation plate is provided with in vibration cavity, cavity pressing plate is provided with outside cavity oscillation plate, the concussion handle of cavity oscillation plate stretches out cavity pressing plate and is fixed on piezoelectric ceramics positioning table side by fixed screw, piezoelectric ceramics positioning table opposite side is fixed on cavity holder, side, temperature control chamber is provided with cavity cover plate, two circulating water chennel fast interfaces are arranged at cavity cover plate top.
In another preferred embodiment, described voltage ceramic cavity comprises oscillator plate pressing plate, piezoelectric ceramics vibration sheet, high resiliency O-ring seals, chamber body, temperature control pressing plate, circulating water chennel fast interface, converting interface, chamber body side is vibration cavity, and opposite side is temperature control chamber; Be provided with piezoelectric ceramics vibration sheet in vibration cavity, the inner side of piezoelectric ceramics vibration sheet is provided with high resiliency O-ring seals, is provided with oscillator plate pressing plate outside vibration cavity; Be provided with temperature control pressing plate outside temperature control chamber, temperature control top of chamber is provided with circulating water chennel fast interface, is provided with converting interface bottom chamber body, and converting interface is connected with female Luer.
In another preferred embodiment, described pH effect platform assembly comprises one dimensional optical translation stage, the one dimension tilt adjustments frame of differential head control, the constant-temperature sample pool with quartz glass view window, the two-dimensional level adjustment platform of differential head control, the one dimension lifting optical translation platform of differential head control, the one dimensional optical translation stage of Electric Machine Control of Electric Machine Control.
In another preferred embodiment, the body pipeline structure in described voltage ceramic chamber comprises feed liquor interface, water influent pipeline, water influent pipeline fluid hole, fluid hole, the second feed liquor interface, fluid pipeline, liquid outlet, described feed liquor interface is located at the lower left side of piezoelectric ceramics cavity, feed liquor interface is connected with the water influent pipeline fluid hole in chamber body by water influent pipeline, second feed liquor interface is positioned in the middle part of chamber body, fluid pipeline one end is located at inside the second feed liquor interface, the other end of fluid pipeline is connected to liquid outlet, and liquid outlet is higher than the second feed liquor interface.
More than show and describe ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; the just principle of the present utility model described in above-described embodiment and instructions; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (6)
1. a high speed, the dynamical interfacial tension instrument of controllable temperature, comprise the optics rotation platform of step motor control, microsyringe, three-way valve, syringe pump assembly, telecentric microscope, high-speed camera, bracing frame, electric box, pH effect platform assembly, base, web joint, chassis left side is provided with optics rotation platform and the electric box of step motor control, telecentric microscope and high-speed camera is provided with on the right side of base, syringe pump assembly is provided with above base, pH effect platform assembly is provided with in the middle of base, optics rotation platform is connected by the telecentric microscope of web joint and base opposite side and high-speed camera fixed sturcture, form a structure that can vertically rotate, it is characterized in that, also comprise voltage ceramic cavity, voltage ceramic cavity is located at below syringe pump assembly, voltage ceramic cavity rear end is connected to three-way valve by kapillary and then is connected with syringe pump assembly, voltage ceramic cavity front end is by female Luer connecting needle.
2. the dynamical interfacial tension instrument of high speed according to claim 1, controllable temperature, it is characterized in that, also comprise the one dimension tilt adjustments frame that differential head controls, the one dimension tilt adjustments that differential head controls is set up on the right side of bracing frame, and the one dimension tilt adjustments frame that differential head controls is provided with telecentric microscope and high-speed camera.
3. the dynamical interfacial tension instrument of high speed according to claim 1, controllable temperature, it is characterized in that, also comprise the one dimension pitch adjusting table of directional light LED background light source and the control of differential head, directional light LED background light source is located on rear side of the one dimension pitch adjusting table of differential head control.
4. high speed according to claim 1, the dynamical interfacial tension instrument of controllable temperature, it is characterized in that, described voltage ceramic cavity comprises cavity fixed screw, piezoelectric ceramics positioning table, cavity holder, cavity pressing plate, high resiliency O-ring seals, cavity oscillation plate, cavity pressure cap, recirculated water cavity, cavity cover plate, circulating water chennel fast interface, cavity stiffening plate, recirculated water cavity is divided into vibration cavity and temperature control chamber, cavity oscillation plate is provided with in vibration cavity, cavity pressing plate is provided with outside cavity oscillation plate, the concussion handle of cavity oscillation plate stretches out cavity pressing plate and is fixed on piezoelectric ceramics positioning table side by fixed screw, piezoelectric ceramics positioning table opposite side is fixed on cavity holder, side, temperature control chamber is provided with cavity cover plate, two circulating water chennel fast interfaces are arranged at cavity cover plate top.
5. the dynamical interfacial tension instrument of high speed according to claim 1, controllable temperature, it is characterized in that, described voltage ceramic cavity comprises oscillator plate pressing plate, piezoelectric ceramics vibration sheet, high resiliency O-ring seals, chamber body, temperature control pressing plate, circulating water chennel fast interface, converting interface, chamber body side is vibration cavity, and opposite side is temperature control chamber; Be provided with piezoelectric ceramics vibration sheet in vibration cavity, the inner side of piezoelectric ceramics vibration sheet is provided with high resiliency O-ring seals, is provided with oscillator plate pressing plate outside vibration cavity; Be provided with temperature control pressing plate outside temperature control chamber, temperature control top of chamber is provided with circulating water chennel fast interface, is provided with converting interface bottom chamber body, and converting interface is connected with female Luer.
6. high speed according to claim 1, the dynamical interfacial tension instrument of controllable temperature, it is characterized in that, the body pipeline structure in described voltage ceramic chamber comprises feed liquor interface, water influent pipeline, water influent pipeline fluid hole, fluid hole, second feed liquor interface, fluid pipeline, liquid outlet, described feed liquor interface is located at the lower left side of piezoelectric ceramics cavity, feed liquor interface is connected with the water influent pipeline fluid hole in chamber body by water influent pipeline, second feed liquor interface is positioned in the middle part of chamber body, fluid pipeline one end is located at inside the second feed liquor interface, the other end of fluid pipeline is connected to liquid outlet, liquid outlet is higher than the second feed liquor interface.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318384A (en) * | 2017-12-29 | 2018-07-24 | 同济大学 | A kind of surface tension of liquid test method based on drop mechanical oscillation |
| CN108663291A (en) * | 2018-07-28 | 2018-10-16 | 中国石油天然气股份有限公司 | A kind of two-phase injector and its application method for rotating interfacial tensimeter |
| CN109253944A (en) * | 2018-10-22 | 2019-01-22 | 上海梭伦信息科技有限公司 | A kind of superhigh temperature melt interface rheology and sandwich effect surface tension test device |
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2015
- 2015-05-14 CN CN201520312888.2U patent/CN204679387U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318384A (en) * | 2017-12-29 | 2018-07-24 | 同济大学 | A kind of surface tension of liquid test method based on drop mechanical oscillation |
| CN108663291A (en) * | 2018-07-28 | 2018-10-16 | 中国石油天然气股份有限公司 | A kind of two-phase injector and its application method for rotating interfacial tensimeter |
| CN108663291B (en) * | 2018-07-28 | 2023-09-26 | 中国石油天然气股份有限公司 | Two-phase sample injector for rotary drop interfacial tensiometer and use method thereof |
| CN109253944A (en) * | 2018-10-22 | 2019-01-22 | 上海梭伦信息科技有限公司 | A kind of superhigh temperature melt interface rheology and sandwich effect surface tension test device |
| CN109253944B (en) * | 2018-10-22 | 2024-02-02 | 上海梭伦信息科技有限公司 | Ultrahigh-temperature melt interface rheological and sandwich effect surface tension testing device |
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