CN115228334A - Glass substrate production line material channel stirring internal flow field simulation device and system - Google Patents
Glass substrate production line material channel stirring internal flow field simulation device and system Download PDFInfo
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- CN115228334A CN115228334A CN202210795654.2A CN202210795654A CN115228334A CN 115228334 A CN115228334 A CN 115228334A CN 202210795654 A CN202210795654 A CN 202210795654A CN 115228334 A CN115228334 A CN 115228334A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
- B01F33/813—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles mixing simultaneously in two or more mixing receptacles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2113—Pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- Chemical & Material Sciences (AREA)
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Abstract
The invention discloses a device and a system for simulating a stirring internal flow field of a material channel of a glass substrate production line, and relates to the technical field of glass production. The glass substrate production line material channel stirring internal flow field simulation device comprises a material storage box, a material channel, a power assembly and a stirrer assembly, wherein the material storage box is used for accommodating a simulation material; the material channel is transparent, and two ends of the material channel are respectively communicated with the feed back port and the discharge port of the material storage box; the power assembly is arranged at the discharge port of the storage box so as to introduce the simulation material into the material channel; the stirrer component is arranged on the material channel between the power component and the material return port so as to stir the simulation material entering the material channel; wherein the viscosity of the simulation material at normal temperature is matched with the viscosity of the glass metal at 1200-1700 ℃.
Description
Technical Field
The invention relates to the technical field of glass production, in particular to a device and a system for simulating a stirring internal flow field of a material channel of a glass substrate production line.
Background
In the manufacturing process of a liquid crystal glass substrate (TFT), a channel is a key link behind a melting tank; the molten glass is cooled and clarified in the channel, and the molten glass is uniformly stirred by a stirring system to eliminate stripes and bubbles.
In actual production, to eliminate the stripes and bubbles in the molten glass, the method is mainly to adjust the stirring condition in the stirring system and improve the uniformity of the molten glass besides reducing the content of high-aluminum raw materials and the like in the stock. Along with the improvement of glass generation, the requirement of the glass substrate for the tenth generation reaches the yield of ninety nine percent, the control on the defects of the stripes and the bubbles in the finished glass substrate is stricter, and the requirement on the stirring working condition in the material channel is higher.
However, when the molten glass is stirred in the stirring system, there are various physical processes such as a flow and mixing process of fluid, a heat transfer process, a diffusion mass transfer process, and the like, in addition to the chemical reaction process. It is difficult to fully consider the effects of these factors based on existing blending systems and therefore there is no way to provide any indication of the adjustment to the blending regime.
Disclosure of Invention
In view of the above, the invention provides a device and a system for simulating a stirring internal flow field of a material channel of a glass substrate production line, and mainly aims to solve the problem that the stirring effect cannot meet product requirements due to the fact that the high-temperature condition of the stirring system cannot be effectively monitored and adjusted.
In order to achieve the above purpose, the present invention mainly provides the following technical solutions:
in a first aspect, the present invention provides a device for simulating a stirring internal flow field of a material channel of a glass substrate production line, comprising:
the storage box is used for containing simulation materials;
the material channel is transparent, and two ends of the material channel are respectively communicated with the material return port and the material outlet of the material storage box;
the power assembly is arranged at the discharge port of the storage box and is used for introducing the simulation material into the material channel;
the stirrer component is arranged on the material channel between the power component and the material returning opening so as to stir the simulation material entering the material channel;
wherein the viscosity of the simulation material at normal temperature is matched with the viscosity of the glass liquid at 1200-1700 ℃.
Optionally, the glass substrate material channel stirring internal flow field simulation device further comprises a controller;
the controller is in signal connection with the power assembly and the stirrer assembly so as to control and correspondingly store working parameters of the power assembly and the stirrer assembly according to test frequency.
Optionally, the glass substrate material channel stirring internal flow field simulation device further comprises a collecting device;
the acquisition device is arranged corresponding to the material channel and is used for acquiring the stirring parameters of the simulation material;
the controller is in signal connection with the acquisition device to receive and correspondingly store the stirring parameters of the simulation materials according to the working parameters of the power assembly and the stirrer assembly.
Optionally, the glass substrate material channel stirring internal flow field simulation device includes a first stirrer and a second stirrer;
the first stirrer and the second stirrer are arranged at intervals, so that the material channel is divided into a first material channel, a second material channel and a third material channel;
the first material channel is positioned between the discharge hole and the first stirrer;
the second material channel is positioned between the first stirrer and the second stirrer;
the third material channel is positioned between the second stirrer and the feed back port;
the first material channel, the second material channel and the third material channel are respectively used for observing the stirring state of the simulation material.
Optionally, the glass substrate material channel stirring internal flow field simulation device includes a first pressure sensor, a second pressure sensor, and a third pressure sensor;
the first pressure sensor, the second pressure sensor and the third pressure sensor are respectively arranged on the inner walls of the first material channel, the second material channel and the third material channel and used for detecting the stress of the material channels in the process of stirring the simulation materials;
wherein, the stirring parameters at least comprise the stress of the material channel.
Optionally, the glass substrate material channel stirring internal flow field simulation device comprises a particle imaging speed measuring device;
the particle imaging speed measuring device is arranged corresponding to the material channel so as to shoot a stirring state image of the simulation material in the material channel and obtain the flow velocity of the simulation material according to the stirring state image;
wherein the stirring parameters at least comprise the flow rate of the simulation materials.
Optionally, the glass substrate material channel stirring internal flow field simulation device further comprises a buffer cabin;
the buffer cabin is arranged on the material channel between the power assembly and the stirrer assembly and is used for temporarily storing the simulation material entering the material channel;
the buffer cabin is transparent.
Optionally, in the glass substrate material channel stirring internal flow field simulation device, an adjusting valve is disposed between the storage tank and the buffer cabin.
Optionally, in the glass substrate material channel stirring internal flow field simulation device, a stop valve is arranged between the third material channel and the material return port.
In a second aspect, the present embodiment provides a glass substrate production line material channel simulation system, which includes the above glass substrate production line material channel stirring simulation apparatus.
By means of the technical scheme, the glass substrate production line material channel stirring internal flow field simulation device provided by the invention has the advantages that the material channel is arranged to be transparent, so that the motion and the stirring process of a simulation material in the material channel can be clearly observed, meanwhile, the simulation material is made of a material matched with the viscosity of glass liquid, the state of the glass liquid in a high-temperature state is simply simulated, the state of the glass liquid in actual production can be visually and effectively presented, the collection of related stirring parameters can be conveniently carried out, the device is not limited by high temperature, and powerful support can be provided for the follow-up research on the influence of the related stirring parameters on the elimination of bubbles and stripes; the problem of current glass liquid can't satisfy the product requirement because the high temperature condition of mixing system can't effectively monitor adjustment operating mode parameter and make the stirring effect effectively is solved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions in the prior art 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 that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 shows a schematic structural diagram of a device for simulating a flow field in a glass substrate production line material channel stirring according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another device for simulating a stirring internal flow field of a material channel of a glass substrate production line according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a simulation apparatus for a stirring internal flow field of a material channel of a glass substrate production line according to an embodiment of the present invention;
FIG. 4 is a block diagram of another structure of a device for simulating a stirring internal flow field of a material channel of a glass substrate production line according to an embodiment of the present invention;
fig. 5 shows a block diagram of a device for simulating a stirring internal flow field of a material channel of a glass substrate production line according to an embodiment of the present invention;
in the figure: the glass substrate production line material channel stirring internal flow field simulation device 1, a material storage box 2, a material return port 21, a material outlet 22, a material channel 3, a first material channel 31, a second material channel 32, a third material channel 33, a stop valve 34, a flow regulating valve 35, a power assembly 4, a stirrer assembly 5, a motor 51, a stirring rod 52, a first stirrer 53, a second stirrer 54, a controller 6, a signal receiving and transmitting unit 61, a processor 62, a memory 63, an acquisition device 7, a first pressure sensor 71, a second pressure sensor 72, a third pressure sensor 73, a particle imaging speed measuring device 74, a buffer cabin 8 and a regulating valve 81.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be noted that, unless otherwise specified, technical terms or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
Referring to fig. 1, the present embodiment provides a glass substrate production line material channel stirring internal flow field simulation apparatus 1, which is capable of simulating a stirring state of molten glass under a high temperature condition; the device comprises a storage tank 2, a material channel 3, a power assembly 4 and a blender assembly 5, wherein the storage tank 2 is used for containing simulation materials (not shown in the figure); the material channel 3 is transparent, and two ends of the material channel 3 are respectively communicated with a feed back port 21 and a discharge port 22 of the material storage box 2; the power assembly 4 is arranged at the discharge hole 22 of the storage box 2 so as to introduce the simulation material into the material channel 3; the stirrer component 5 is arranged on the material channel 3 between the power component 4 and the material return opening 21 so as to stir the simulation material entering the material channel 3; wherein the viscosity of the simulation material at normal temperature is matched with the viscosity of the glass liquid at 1200-1700 ℃.
Specifically, in order to solve the problem that the stirring effect cannot meet the product requirements due to the fact that the high-temperature condition of the stirring system cannot be effectively monitored and adjusted to adjust the working condition parameters in the conventional glass liquid, the embodiment provides a stirring internal flow field simulation device 1 for a material channel of a glass substrate production line; the stirring simulation device for the glass liquid is formed by mutually matching the material storage box 2, the material channel 3, the power assembly 4 and the stirrer assembly 5, so that the stirring simulation device is suitable for stirring simulation in a normal temperature state, and meanwhile, a simulation material with the viscosity matched with that of the glass liquid in a high temperature state is used for stirring, so that the high temperature condition in the actual stirring process is effectively avoided, and the collection of related stirring parameters can be conveniently carried out; meanwhile, the material channel 3 is transparent, so that the direct and timely observation of the stirring state is realized; the method has instructive significance for researching the stirring condition of the molten glass in a high-temperature state and adjusting related parameters to eliminate the influence of bubbles and temperature adjustment.
Wherein, storage case 2 is the box that has the memory function, and it is used for holding the simulation material for provide the simulation material in to material way 3, and wait to simulate to retrieve the simulation material once more after accomplishing. The shape of the storage box 2 is not limited too much, and can be a cuboid as shown in fig. 1, or any other shape; it should be noted that: in this embodiment, it is preferable to set up storage case 2 to transparent form, can utilize transparent organic glass preparation to make the staff can directly observe inside state outside storage case 2.
The simulation material is a fluid medium for simulating glass liquid, the viscosity of the simulation material at normal temperature is matched with the viscosity of the glass liquid at 1200-1700 ℃, and is 122300cst-275660cst, for example: dimethyl silicone oil; because viscosity under this simulation material normal atmospheric temperature and the viscosity phase-match under the high temperature condition in the glass liquid actual production, and then can simulate the stirring process under the normal atmospheric temperature state, the high temperature condition has been avoided to this in-process, and then can gather the relevant stirring parameter of simulation material through data acquisition device, provide the powerful support to eliminating the influence of bubble and stripe for follow-up data analysis stirring parameter that utilizes. It can be understood that: according to different simulation frequencies, simulation materials with different viscosities can be selected when the simulation materials are added, so that simulation research can be carried out on correlation of relevant data.
The material channel 3 is a channel for simulating the movement of the material in the simulation device and is a stirred space, and the material channel 3 can be integrally formed with the material storage box 2 or can be connected with the material storage box in a split mode; the shape and size of the material channel 3 are not limited too much, and can be designed and adjusted according to the actual simulation requirements. In this embodiment material way 3 sets up to transparent form, for example adopts transparent organic glass to make, and then the motion and the stirring process of simulation material can be seen throughout to the staff, for example: after stirring is started for a period of time, bubbles in the simulation material disappear, and the simulation material becomes clear; another example is: whether the simulated materials in different areas in the material channel 3 are in the same state or in the same change.
The power assembly 4 provides power for introducing the simulation materials into the material channel 3, and can be but not limited to a circulating pump, the circulating pump provides power for introducing the simulation materials into the material channel 3 to be stirred, and meanwhile, the circulating pump can push the simulation materials in the material channel 3 back to the storage tank 2 by providing power; it can be understood that: relevant parameters of the circulating pump can be adjusted during stirring simulation, so that the influence of initial speed, acceleration, liquid level height of the material introducing channel 3 and the like on bubble and stripe elimination can be researched.
The stirrer component 5 can stir the simulated material in the material channel 3 to extrude out air bubbles and stripes inside, so that the clarity degree of the simulated material is ensured; the stirrer assembly 5 may be a single stirrer or a combination of multiple stirrers, and referring to fig. 1, the stirrer is a type in which an upper motor 51 drives a lower stirring rod 52 to rotate, wherein the rotation speed and the rotation direction of the motor 51 are adjustable, so as to study the influence of the stirring rotation speed, the stirring direction, the shape of the stirring rod 52, the height of the stirring rod 52, and the like on the elimination of bubbles and streaks.
Among them, it should be noted that: the glass substrate production line material channel stirring internal flow field simulation device 1 provided by the embodiment is manufactured according to a proportion of 1 with a molten glass channel stirring system in actual production, so as to ensure the accuracy and the guiding significance of stirring parameters.
According to the above list, the glass substrate production line material channel stirring internal flow field simulation device 1 provided by the invention has the advantages that the material channel 3 is transparent, so that the motion and the stirring process of a simulation material in the material channel 3 can be clearly observed, meanwhile, the simulation material is made of a material matched with the viscosity of molten glass, the state of the molten glass in a high-temperature state is simply simulated, the state of the molten glass in actual production can be visually and effectively presented, the collection of related stirring parameters can be conveniently carried out, the device is not limited by high temperature, and powerful support can be provided for the follow-up research on the influence of the related stirring parameters on the elimination of bubbles and stripes; the problem of current glass liquid can't satisfy the product requirement because the high temperature condition of mixing system can't effectively monitor adjustment operating mode parameter and make the stirring effect effectively is solved.
The term "and/or" herein is merely an associative relationship describing an associated object, meaning that three relationships may exist, e.g., a and/or B, specifically understood as: both a and B may be included, a may be present alone, or B may be present alone, and any of the three cases can be provided.
Further, referring to fig. 5, in a specific implementation, the glass substrate production line material channel stirring internal flow field simulation apparatus 1 provided in this embodiment further includes a controller 6; the controller 6 is in signal connection with the power assembly 4 and the stirrer assembly 5 so as to control and correspondingly store the working parameters of the power assembly 4 and the stirrer assembly 5 according to the test frequency.
Specifically, in order to facilitate subsequent data research and arrangement, the controller 6 is provided in this embodiment, and the controller 6 is a PLC controller capable of performing data transmission and reception, analysis processing, and comparison, and performing program editing. In this embodiment, the controller 6 at least includes a signal transceiver unit 61, a processor 62 and a memory 63, the signal transceiver unit 61 is in signal connection with a master controller and a related data acquisition device, the processor 62 is electrically connected with the signal transceiver unit 61 to classify and store the received data, and the memory 63 is electrically connected with the processor 62 to store the corresponding data according to an instruction of the processor 62. The working parameters of the power assembly 4 at least comprise the power size, the initial speed and the acceleration of the fluid, the liquid level height of the material introduced into the material channel 3 and the like; the operating parameters of the blender assembly 5 at least include the above-mentioned blending speed, blending direction, shape of the blending rod 52, height of the blending rod 52 and even stress of the blending rod 52 at different speeds and simulated liquid viscosity. Specifically, depending on the frequency of the simulation tests, the processor 62 may perform grouping or batch storage, such as: all data under the first simulation are stored in the same data packet, and the rest is repeated, so that the simulation test data with different frequencies are separately stored, and the subsequent data analysis and processing are facilitated. Of course, it is to be understood that: the controller 6 further includes a key-in unit 64, the key-in unit 64 being electrically connected to the processor 62 to key in the initial viscosity of the simulated material, the initial operating parameters of the power assembly 4, and the initial operating parameters of the blender assembly 5 at each simulated test for respective storage for later use.
Further, referring to fig. 4, in the concrete implementation of the glass substrate production line material channel stirring internal flow field simulation device 1 provided in this embodiment, a collection device 7 is further included; the acquisition device 7 is arranged corresponding to the material channel 3 and is used for acquiring the stirring parameters of the simulation material; the controller 6 is in signal connection with the acquisition device 7 to receive and correspondingly store the stirring parameters of the simulation materials according to the working parameters of the power assembly 4 and the stirrer assembly 5.
Specifically, in order to study the influence of each working condition parameter on eliminating bubbles and streaks in the stirring process as detailed as possible, in this embodiment, the acquisition device 7 is disposed inside or outside the simulation apparatus, and the acquisition device 7 may include a plurality of different acquisition devices disposed inside and outside the simulation apparatus, for example: pressure sensors, image acquisition devices, temperature acquisition devices, and the like; the acquisition device 7 is in signal connection with the controller 6 so as to transmit the acquired stirring data to the controller 6 in real time for storage.
Further, referring to fig. 1, fig. 2 and fig. 3, in the glass substrate production line material channel stirring internal flow field simulation apparatus 1 provided in this embodiment, in a specific implementation, the stirrer assembly 5 includes a first stirrer 53 and a second stirrer 54; the first stirrer 53 and the second stirrer 54 are arranged at intervals so that the material channel 3 is divided into a first material channel 31, a second material channel 32 and a third material channel 33; the first material channel 31 is positioned between the discharge port 22 and the first stirrer 53; the second material channel 32 is positioned between the first stirrer 53 and the second stirrer 54; the third material channel 33 is located between the second stirrer 54 and the feed back port 21; the first material channel 31, the second material channel 32 and the third material channel 33 are respectively used for observing the stirring state of the simulation material.
Specifically, in order to efficiently study the influence of each working condition parameter on the elimination of bubbles and streaks in the stirring process, in this embodiment, the stirrer assembly 5 is provided in a form including a first stirrer 53 and a second stirrer 54, and the first stirrer 53 and the second stirrer 54 have the same structure; the first stirrer 53 and the second stirrer 54 are spaced to space the material channel 3 in the form of the first material channel 31, the second material channel 32 and the third material channel 33, and it can be understood that: three state can appear after the simulation material gets into material way 3, does not have passed the stirring when being located first material way 31, passes through the first stirring when being located second material way 32, passes through the secondary stirring when being located third material way 33, and the staff can carry out the state observation in three region respectively to obtain the state change of simulation material in different regions, for example: simulating the influence of the viscosity of the material on the flowing state; the stress condition of the stirring rod 52 or the material channel 3 under different stirring rotating speeds and simulated material viscosities; the influence of different stirring speeds on the flow state; the influence of the change of the rotation direction of the stirrer on the flow state; simulating the influence of the liquid level of the material on the flowing state in the material channel 3; the effect of stir bar 52 height on flow conditions; the influence of the shape of the stirring rod 52 on the flow state and the like can be visually observed and analyzed through the transparent material channel 3.
Further, referring to fig. 3, in the glass substrate production line material channel stirring internal flow field simulation apparatus 1 provided in this embodiment, in a specific implementation, the collecting device 7 includes a first pressure sensor 71, a second pressure sensor 72, and a third pressure sensor 73; the first pressure sensor 71, the second pressure sensor 72 and the third pressure sensor 73 are respectively arranged on the inner walls of the first material channel 31, the second material channel 32 and the third material channel 33, and are used for detecting the stress of the material channels in the process of stirring the simulation materials; wherein, the stirring parameters at least comprise the stress of the material channel 3.
Specifically, in order to specifically study the stress conditions of the stirring rod 52 or the material channel 3 under different stirring rotation speeds and simulated material viscosities, in this embodiment, stress data is collected by setting the pressure sensors, and further, for the material channel 3, a first pressure sensor 71, a second pressure sensor 72 and a third pressure sensor 73 may be respectively arranged in the first material channel 31, the second material channel 32 and the third material channel 33, and the first pressure sensor 71, the second pressure sensor 72 and the third pressure sensor 73 are in signal connection with the controller 6, so as to transmit the collected data to the controller 6 for storage in real time; it can be understood that: a pressure sensor can be arranged on the stirring rod 52 according to the stress condition of the stirring rod 52.
Further, referring to fig. 4, in the glass substrate production line material channel stirring internal flow field simulation apparatus 1 provided in this embodiment, in a specific implementation, the acquisition device 7 includes a particle imaging speed measurement device 74; the particle imaging speed measuring device 74 is arranged corresponding to the material channel 3 to shoot a stirring state image of the simulation material in the material channel 3 and obtain the flow velocity of the simulation material according to the stirring state image; wherein the stirring parameters at least comprise the flow rate of the simulation materials.
Specifically, in order to study the influence of the flow velocity of the simulation material in the material channel 3 on the flow state and the elimination of bubbles and stripes; in this embodiment, a particle imaging speed measurement device 74 is provided, which is a method for recording the positions of particles in a flow field by multiple times of shooting, and analyzing the shot images to measure the flow speed; the particle imaging velocimetry apparatus 74 mainly comprises a laser (not shown), an optical arm (or optical fiber) (not shown), a film light source optical element (not shown), a synchronizer (not shown), an image capture device (CCD camera) (not shown) and an image drift component (not shown).
Wherein the laser is a wide dynamic range laser source required for high resolution PIV (Particle image velocimetry) measurement, provides short duration pulses and emits collimated energy; the commonly used lasers are mainly three types, i.e., ruby laser, hydrogen ion laser (i.e., ar ion laser), and pulsed iridium-neodymium garnet laser (Nd: yag laser), and currently, the most commonly used lasers are Nd: yag laser, nd: the wavelength of the Yag laser is 532nm, the energy of each pulse is 0.2J, and the pulse width is 15ns; it can emit continuous pulse light with frequency of 10Hz or 50Hz; generally, in a PIV (Particle image velocimetry) system, two Yag lasers are used, a synchronizer is used to trigger the lasers to generate pulses, and then an optical system is used to combine the two optical pulses into one. The adjustable range of the pulse interval is large, namely from 1s to 0.1s, so that the measurement from low-speed to high-speed flow can be realized;
the sheet light source optical element comprises a cylindrical mirror and a spherical mirror; the collimated laser beam is diffused in one direction after passing through the cylindrical mirror, and the spherical mirror is used for controlling the thickness of the sheet light; the synchronizer controls the entire imaging system, including the laser, CCD camera, rotating mirror image shift system, etc., to control the timing of image capture and laser pulses, control the capture of CCD images, externally control pulse intervals, pulse duration, number of frames and Q-switch settings, external triggering of the device, such as rotating mirror image shift system, etc.
Wherein the image capture device: the recording medium employs a high-resolution video CCD camera. The image drift component is used to solve the problem of direction ambiguity, if there is a reverse flow in the measurement flow field, there is a direction uncertainty problem, i.e. there is no way to know from the original picture which particle image was generated by the previous pulse, and the method for solving this technical problem can be easily implemented by those skilled in the art, for example; rotating mirror method, optical crystal method, and frame-spanning technique.
Specifically, in the working process, the initial parameters of the particle imaging speed measuring device 74 need to be set and adjusted, so that the shooting position of the corresponding material channel 3 is accurate, tracer particles are put into the simulation material after the parameter setting is completed, the image acquisition is carried out on the stirred simulation material in the material channel 3 according to the set time sequence and steps, and the CCD camera and the sheet light source are ensured to be perpendicular to each other in the acquisition process. The above process can be easily understood by those skilled in the art, and will not be described herein in too much detail. Next, image analysis needs to be performed on the image to obtain the flow velocity of the simulation material, in this embodiment, an independent image analysis processor may be disposed in the particle imaging velocimetry apparatus 74, or a processor in the controller 6 may be utilized, and meanwhile, analysis software is matched, for example: pivView to ensure the effects of high calculation precision, high speed, good visibility of result display and the like; and the analysis display system stores the particle image data through a collection card, analyzes the image by PivView software to obtain a velocity field, and displays the velocity vector field in real time. And it is understood that: in this embodiment, it is preferable that a particle imaging velocimetry device 74 is respectively disposed corresponding to the first material channel 31, the second material channel 32 and the third material channel 33.
Further, referring to fig. 2, the glass substrate production line material channel stirring internal flow field simulation apparatus 1 provided in this embodiment further includes a buffer cabin 8; the buffer cabin 8 is arranged on the material channel 3 between the power component 4 and the stirrer component 5 and is used for temporarily storing the simulation material entering the material channel 3; the buffer cabin 8 is transparent.
Specifically, in order to guarantee that the simulation material in the material way 3 can accurate sign stirring state and stirring parameter, in this embodiment in set up the surge tank 8 between power component 4 and the first mixer 53, surge tank 8 is for having accommodation space's structure, and it can be kept in by the simulation material that power component 4 draws wherein to the simulation material that guarantees to get into material way 3 and carry out the stirring is steady motion, avoids sudden entering or sudden interruption to influence subsequent observation and research. The shape and dimensions of the buffer chamber 8 are not excessively limited here, as long as transparency is ensured, for example: is made of transparent organic glass.
Further, referring to fig. 3, in the glass substrate production line material channel stirring internal flow field simulation apparatus 1 provided in this embodiment, a regulating valve 81 is disposed between the storage tank 2 and the buffer cabin 8.
Specifically, the adjusting valve 81 may be a manual valve or an electric control valve, and can adjust the on-off and flow rate of the material channel 3 between the material storage tank 2 and the buffer chamber 8, and can be adjusted according to actual simulation requirements to improve the operability of simulation.
Further, referring to fig. 1, in the glass substrate production line material channel stirring internal flow field simulation apparatus 1 provided in this embodiment, a stop valve 34 is disposed between the third material channel 33 and the feed back port 21.
In particular, the stop valve 34 is adapted to the pressure in the channel 3, facilitating the venting or discharging. In addition, in this embodiment, the flow regulating valves 35 are correspondingly disposed below the first stirrer 53 and the second stirrer 54 to regulate flow rates between the second material channel 32 and the third material channel 33 and the material storage tank 2, and may be used for flow regulation or discharging, which is not described herein in detail.
Example 2
The embodiment provides a glass substrate production line material channel simulation system, which comprises a glass substrate production line material channel stirring internal flow field simulation device 1.
Specifically, the method comprises the following steps. In order to solve the problem that the stirring effect can not satisfy the product requirement because the high temperature condition of the stirring system can not be effectively monitored and adjusted to adjust the working condition parameters, the present embodiment provides a material channel simulation system for glass substrate production, which can carry out 1 through the material channel stirring inner flow field simulation device 1 for glass substrate production: 1, collecting and observing related stirring parameters, and obtaining the influence of the related stirring parameters on eliminating bubbles and stripes through comparison, analysis and calculation, thereby having great guiding significance for actual production.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. The utility model provides a glass substrate produces line material way stirring internal flow field analogue means which characterized in that, it includes:
the storage box is used for containing simulation materials;
the material channel is transparent, and two ends of the material channel are respectively communicated with the material return port and the material outlet of the material storage box;
the power assembly is arranged at the discharge port of the storage box and is used for introducing the simulation material into the material channel;
the stirrer component is arranged on the material channel between the power component and the material return port so as to stir the simulation material entering the material channel;
wherein the viscosity of the simulation material at normal temperature is matched with the viscosity of the glass liquid at 1200-1700 ℃.
2. The glass substrate production line material channel stirring internal flow field simulation device as claimed in claim 1, wherein:
the device also comprises a controller;
the controller is in signal connection with the power assembly and the stirrer assembly to control and correspondingly store working parameters of the power assembly and the stirrer assembly according to test frequency.
3. The glass substrate production line material channel stirring internal flow field simulation device as claimed in claim 2, wherein:
a collection device is also packaged;
the acquisition device is arranged corresponding to the material channel and is used for acquiring the stirring parameters of the simulation material;
the controller is in signal connection with the acquisition device to receive and correspondingly store the stirring parameters of the simulation materials according to the working parameters of the power assembly and the stirrer assembly.
4. The glass substrate production line material channel stirring internal flow field simulation device of claim 3, wherein:
the blender assembly comprises a first blender and a second blender;
the first stirrer and the second stirrer are arranged at intervals so that the material channel is divided into a first material channel, a second material channel and a third material channel;
the first material channel is positioned between the discharge hole and the first stirrer;
the second material channel is positioned between the first stirrer and the second stirrer;
the third material channel is positioned between the second stirrer and the material returning port;
the first material channel, the second material channel and the third material channel are respectively used for observing the stirring state of the simulation material.
5. The glass substrate production line material channel stirring internal flow field simulation device as claimed in claim 4, wherein:
the acquisition device comprises a first pressure sensor, a second pressure sensor and a third pressure sensor;
the first pressure sensor, the second pressure sensor and the third pressure sensor are respectively arranged on the inner walls of the first material channel, the second material channel and the third material channel and used for detecting the stress of the material channels in the process of stirring the simulation materials;
wherein, the stirring parameters at least comprise the stress of the material channel.
6. The glass substrate production line material channel stirring internal flow field simulation device as claimed in claim 3, wherein:
the acquisition device comprises a particle imaging speed measuring device;
the particle imaging speed measuring device is arranged corresponding to the material channel so as to shoot a stirring state image of the simulation material in the material channel and obtain the flow velocity of the simulation material according to the stirring state image;
wherein the stirring parameters at least comprise the flow rate of the simulation materials.
7. The glass substrate production line material channel stirring internal flow field simulation device as claimed in claim 1, wherein:
the device also comprises a buffer cabin;
the buffer cabin is arranged on the material channel between the power assembly and the stirrer assembly and is used for temporarily storing the simulation material entering the material channel;
the buffer cabin is transparent.
8. The glass substrate production line material channel stirring internal flow field simulation device as claimed in claim 7, wherein:
and a regulating valve is arranged between the storage box and the buffer cabin.
9. The glass substrate production line material channel stirring internal flow field simulation device of claim 4, wherein:
and a stop valve is arranged between the third material channel and the material return port.
10. The utility model provides a glass substrate produces line material way analog system which characterized in that, it includes:
the glass substrate production line material channel stirring internal flow field simulation device as defined in any one of claims 1 to 9.
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| CN202210795654.2A CN115228334B (en) | 2022-07-07 | 2022-07-07 | Device and system for simulating flow field in stirring of material channel of glass substrate production line |
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| CN202210795654.2A CN115228334B (en) | 2022-07-07 | 2022-07-07 | Device and system for simulating flow field in stirring of material channel of glass substrate production line |
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| CN115228334B (en) | 2024-03-29 |
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