WO2018161608A1 - 脱泡装置 - Google Patents

脱泡装置 Download PDF

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Publication number
WO2018161608A1
WO2018161608A1 PCT/CN2017/108034 CN2017108034W WO2018161608A1 WO 2018161608 A1 WO2018161608 A1 WO 2018161608A1 CN 2017108034 W CN2017108034 W CN 2017108034W WO 2018161608 A1 WO2018161608 A1 WO 2018161608A1
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WO
WIPO (PCT)
Prior art keywords
defoaming
cavity
temperature
chamber
liquid
Prior art date
Application number
PCT/CN2017/108034
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English (en)
French (fr)
Inventor
范真瑞
陆忠
张文轩
熊黎
唐成
汪明文
杨剑波
袁洪光
林伟
蒋冬华
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/770,301 priority Critical patent/US10926198B2/en
Publication of WO2018161608A1 publication Critical patent/WO2018161608A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0063—Regulation, control including valves and floats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0005—Degasification of liquids with one or more auxiliary substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0036—Flash degasification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0042—Degasification of liquids modifying the liquid flow
    • B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/26—De-aeration of paper stock
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • G02F1/133723—Polyimide, polyamide-imide

Definitions

  • the present disclosure relates to the field of liquid defoaming technology, and in particular to a defoaming device.
  • a high-viscosity chemical solution for example, a polyimide alignment liquid
  • a polyimide alignment liquid is used in the production process of the liquid crystal display panel, and in order to obtain a better finished product effect, it is necessary to remove bubbles in the chemical solution.
  • a defoaming apparatus comprising:
  • a closed defoaming chamber configured to hold a liquid to be defoamed
  • a heating unit configured to heat the defoaming cavity
  • a temperature detecting unit configured to detect a temperature in the defoaming chamber
  • a controller configured to receive a temperature detected by the temperature detecting unit and to control the heating unit according to the temperature.
  • the temperature detecting unit may include a plurality of temperature sensors, a plurality of the temperatures The sensor is configured to detect temperatures at different locations in the defoaming cavity.
  • a plurality of the temperature sensors may be disposed in the defoaming cavity in a first direction.
  • the heating unit may include a heating wire configured to spirally rise from the base of the defoaming cavity around the defoaming cavity to integrally heat the defoaming cavity.
  • the heating unit may include a plurality of heating wires, and the defoaming cavity includes a plurality of sub-regions, each of the heating wires being configured to heat a sub-region of the defoaming cavity.
  • the heating unit may include a plurality of heating wires extending in a second direction perpendicular to the first direction, which are sequentially disposed in the first direction, and the defoaming cavity includes a plurality of sub-regions, each of the The heating wire is configured to heat a sub-region of the defoaming cavity, and a temperature sensor corresponding to the one sub-region of the plurality of temperature sensors detects a temperature of the one sub-region, thereby controlling The device precisely controls the temperature of the one sub-area.
  • the defoaming cavity may have an inverted conical base, the inverted conical base is provided with a feed opening and a discharge opening, and the discharge opening is located at a lowest point of the inverted conical base, the feeding The mouth is located higher than the discharge opening.
  • the feed port and the discharge port may each be provided with a bubble counting unit.
  • the defoaming device may further include an insulating layer disposed on an outer surface of the defoaming cavity.
  • the defoaming device may further include a defoaming monitoring unit configured to monitor a defoaming state of the liquid in the defoaming chamber.
  • the defoaming monitoring unit can include an image acquisition unit configured to acquire an image of the liquid within the defoaming chamber.
  • the defoaming monitoring unit may include an atmosphere analyzer configured to detect a content of a gas in the defoaming chamber.
  • the atmosphere analyzer can be an oxygen analyzer.
  • the defoaming device may further include an agitation unit disposed in the defoaming chamber and configured to agitate the liquid to be defoamed.
  • the defoaming device may further include a vacuum unit configured to extract gas in the defoaming chamber.
  • FIG. 1 is a schematic view showing a structure of a defoaming device according to an exemplary embodiment of the present disclosure
  • FIG. 2 is a schematic view showing a manner of setting a heating wire in a defoaming device according to an exemplary embodiment of the present disclosure
  • FIG. 3 is a schematic view showing another heating filament arrangement in a defoaming device according to an exemplary embodiment of the present disclosure
  • Figure 4 is a graphical representation of the relationship between viscosity and temperature for a mass produced polyimide material.
  • An exemplary embodiment of the present disclosure provides a defoaming device for defoaming a defoaming liquid, which may be a liquid having a higher viscosity such as a flexible polyimide material, pulp, or the like.
  • FIG. 1 is a schematic view showing a structure of a defoaming device according to an exemplary embodiment of the present disclosure.
  • the defoaming device in the present exemplary embodiment includes: a closable defoaming chamber 1 configured to hold a liquid to be defoamed; and a heating unit 2 It is configured to heat the defoaming chamber 1.
  • the first direction and the second direction are defined herein.
  • the first direction is a direction parallel to the vertical wall portion of the defoaming chamber 1 in FIG. 1, that is, regardless of the placement position of the defoaming device (specifically, the defoaming chamber 1), The first direction is always parallel to the wall portion.
  • the second direction is a direction perpendicular to the first direction.
  • the liquid to be defoamed is passed through the feed port 9 After being fed into the defoaming chamber 1, the defoaming chamber 1 is closed, and then the defoaming chamber 1 is heated by the heating unit 2, thereby heating the liquid in the defoaming chamber 1, after the defoaming of the liquid is completed.
  • the liquid is discharged from the discharge port 10.
  • the defoaming cavity 1 has an inverted tapered base, specifically, as shown in FIG. 1, the inverted tapered base is in the first direction (in the case of FIG. 1, The lower portion of the defoaming chamber 1 in which the cross-sectional area in the second direction from the bottom to the top is gradually increased.
  • the feed port 9 and the discharge opening 10 are provided on the inverted tapered base, wherein the discharge opening 10 is located at the lowest point of the inverted tapered base, and the feed opening 9 is located higher than the discharge opening 10.
  • the discharge port 10 thus provided ensures that the liquid which has been defoamed is sufficiently discharged.
  • the feed port 9 thus arranged can enter the defoaming chamber at the beginning of the liquid to be defoamed.
  • the liquid to be defoamed flows along the wall portion of the inverted cone base without introducing additional bubbles into the liquid to be defoamed, and as the liquid to be defoamed accumulates in the defoaming chamber 1, the feed port 9 becomes below the level of the liquid to be defoamed, in which case continuing to feed the liquid to be defoamed from the feed port 9 likewise does not introduce additional bubbles into the liquid to be defoamed.
  • the viscosity of the liquid decreases as the temperature increases (for example, the relationship between the viscosity of a certain amount of polyimide material shown in FIG. 4 and temperature).
  • the rate of rise of the bubbles in the liquid is inversely proportional to the viscosity of the liquid, that is, the lower the viscosity of the liquid, the faster the bubble rises.
  • the arrangement position and specific form of the heating unit 2 are not particularly limited as long as heating of the defoaming chamber 1 can be achieved.
  • the heating unit 2 is a schematic view showing a manner in which a heating wire is disposed in a defoaming device according to an exemplary embodiment of the present disclosure. As shown in FIG. 2, as one mode of the present exemplary embodiment, the heating unit 2 includes a heating wire 21 configured to integrally heat the defoaming chamber 1.
  • the heating unit 2 may be provided with only one heating wire 21,
  • the heating wire 21 is disposed around the defoaming chamber 1 (for example, embedded in the side wall of the defoaming chamber 1), and spirals from the base of the defoaming chamber 1 to extend to various positions of the defoaming chamber 1.
  • the respective positions of the defoaming chamber 1 can be uniformly heated (i.e., integrally heated), and this arrangement simplifies the structure and facilitates control.
  • FIG. 3 is a schematic diagram showing another heating wire arrangement in a defoaming device according to an exemplary embodiment of the present disclosure.
  • the heating unit 2 may include a plurality of heating wires 21, and the defoaming cavity 1 includes a plurality of sub-regions distributed in a first direction, each sub-region and Each of the heating wires is in one-to-one correspondence, and each of the heating wires 21 is configured to heat a sub-region of the defoaming chamber 1 corresponding to the heating wire.
  • the heating unit 2 includes a plurality of heating wires 21, and each of the heating wires 21 is wound around a portion of the defoaming cavity 1 (such as a region at a different position in the first direction), Therefore, each of the heating wires 21 is heated to a portion of the corresponding defoaming chamber 1 when it is heated.
  • different heating wires 21 can work independently, that is, whether each heating wire 21 is heated and the heating temperature is irrelevant, whereby the heating unit 2 can respectively use different heating wires 21 to the defoaming cavity 1 as needed. Different positions are heated to different degrees (ie, partition heating) to better meet the requirements of defoaming.
  • the defoaming chamber can be only allowed.
  • the heating wire 21 corresponding to the lower half of the 1 is heated, while the other heating wires 21 are not operated.
  • the heating wire 21 can cover the whole or a part of the defoaming cavity 1 in a manner such as a spiral wrapping manner, an "S" type arrangement, a horizontal arrangement, etc., and the arrangement density of the heating wire 21 can be adjusted according to actual conditions. It is set as appropriate and is not specifically limited here.
  • the defoaming device further includes a temperature detecting unit 3 and a controller 11.
  • the temperature detecting unit 3 is configured to detect the temperature inside the defoaming chamber 1 and feed back the temperature to the controller 11.
  • the controller 11 is connected to the temperature detecting unit 3, and controls the heating unit 2 in accordance with the temperature detected by the temperature detecting unit 3.
  • the temperature in the defoaming chamber 1 is detected in real time by the temperature detecting unit 3, that is, defoaming
  • the defoaming temperature of the liquid to be defoamed in the cavity 1 is fed back to the controller 11, and the controller 11 controls the heating unit 2 according to the feedback defoaming temperature, so that the defoaming temperature can be accurately controlled so that the liquid to be defoamed is Defoaming at the optimum defoaming temperature, thereby improving the defoaming efficiency of the defoaming device.
  • the controller 11 can control the heating unit 2 in combination with factors such as material properties of the liquid to be defoamed and viscosity.
  • the temperature detecting unit 3 includes a plurality of temperature sensors 31, which may be, for example, armored thermocouples, fixed flange type temperature sensors, threaded temperature sensors, etc., a plurality of temperature sensors 31 It is configured to detect temperatures at different locations in the defoaming chamber 1.
  • the temperature detecting unit 3 may include a plurality of temperature sensors 31, and by separately setting the temperature sensors 31 at different positions of the defoaming chamber 1 (for example, positions at different heights), the temperature measurement can be made more precise, thereby further improving Defoaming efficiency of the defoaming device.
  • the number and position of the temperature sensors 31 can be set according to actual needs.
  • the plurality of temperature sensors 31 can be disposed at different positions of one vertical rod in the first direction as shown in FIG.
  • the temperature sensor 31 may be provided on the inner wall of the defoaming chamber 1.
  • the temperature sensor 31 is an infrared temperature sensor or the like, it may be provided outside the defoaming chamber 1 (of course, a window for infrared rays to pass through is required to be provided on the defoaming chamber 1).
  • the temperature detecting unit 3 can also be other devices that can be used to measure temperature.
  • the heating unit 2 includes a plurality of heating wires 21 extending in the second direction sequentially arranged in the first direction, and the defoaming cavity 1 includes a plurality of sub-regions distributed along the first direction, Each of the heating wires 21 is configured to heat a sub-region of the defoaming chamber 1 , and a temperature sensor corresponding to the one sub-region of the plurality of temperature sensors 31 detects the temperature of the one sub-region, thereby being controlled via the controller 11 The temperature of this sub-area is precisely controlled.
  • the defoaming device further includes an insulating layer 4 disposed on an outer surface of the defoaming chamber 1.
  • the heat insulating layer 4 (for example, a rubber plastic insulating layer, a polyurethane insulating layer) is disposed on the outer surface of the defoaming cavity 1 for partitioning or reducing the defoaming device during defoaming (including the defoaming cavity 1 and the heating unit 2) ) Heat transfer with the outside world, thereby reducing heat loss and saving energy.
  • a rubber plastic insulating layer, a polyurethane insulating layer is disposed on the outer surface of the defoaming cavity 1 for partitioning or reducing the defoaming device during defoaming (including the defoaming cavity 1 and the heating unit 2) ) Heat transfer with the outside world, thereby reducing heat loss and saving energy.
  • the defoaming device further includes a defoaming monitoring unit configured to monitor a defoaming state of the liquid in the defoaming chamber 1.
  • the defoaming state (bubble content in the liquid) of the liquid in the defoaming chamber 1 can be obtained in real time by the defoaming monitoring unit, so as to adjust the defoaming temperature or the defoaming time of the defoaming device accordingly, thereby avoiding unnecessary Waste of resources.
  • the defoaming monitoring unit includes an image acquisition unit 5 configured to acquire an image of the liquid within the defoaming cavity 1 .
  • the defoaming state of the liquid can be visually determined. For example, when the defoaming is completed, no bubbles can be seen in the liquid from the acquired image.
  • the image acquisition unit 5 may be a video camera that captures or photographs the state of the liquid in the defoaming chamber 1 in real time. Further, the camera is also provided with a lighting device (such as an LED light) to make the captured image clearer.
  • a lighting device such as an LED light
  • the specific arrangement form of the image acquisition unit 5 in the present exemplary embodiment is not limited to being disposed in the defoaming cavity 1.
  • the image acquisition unit 5 may also be disposed outside the defoaming cavity 1 through the defoaming cavity.
  • the transparent window on the wall of the body 1 collects an image of the interior of the defoaming cavity 1; alternatively, the image acquisition unit 5 can also be provided at the base of the defoaming cavity 1 to capture an image of the interior of the liquid.
  • the defoaming monitoring unit includes an atmosphere analyzer 6 configured to detect a gas content in the defoaming chamber 1.
  • the gas in the bubble taken out from the liquid will enter the upper portion of the defoaming chamber 1, so that during the defoaming process, the gas content in the defoaming chamber 1 will also vary with the bubble content in the liquid. A change has occurred.
  • the gas content in the defoaming chamber 1 increases as the bubbles are released, and after the bubbles are removed, the gas content remains stable; for example, degassing under vacuum
  • the defoaming chamber 1 stably contains a trace amount of gas (due to It is impossible for these gases to be extracted instantaneously, and after the defoaming is completed, the gas content in the defoaming chamber 1 is stabilized at a lower value. Therefore, the present exemplary embodiment analyzes and detects the gas content inside the defoaming chamber 1 (which may be the content of a certain component gas in the gas) by the atmosphere analyzer 6, thereby judging whether or not the defoaming is completed.
  • the atmosphere analyzer 6 is an oxygen analyzer.
  • Air bubbles are usually caused by transportation shocks in the atmosphere, so the gas components in the bubbles are the same as the atmospheric components, that is, mainly containing oxygen and nitrogen.
  • the oxygen content in the defoaming chamber 1 is analyzed using an oxygen analyzer as the atmosphere analyzer 6, thereby judging whether or not the defoaming is completed.
  • the specific arrangement of the atmosphere analyzer 6 is also various, and it may be disposed outside the defoaming chamber 1 but in communication with the interior of the defoaming chamber 1 as shown in FIG. 1; or the atmosphere analyzer 6 may be directly provided. Inside the defoaming chamber 1.
  • the feed port 9 and the discharge port 10 are each provided with a bubble counting unit 12.
  • the bubble counting unit 12 at the feed port 9 detects and counts the number of bubbles in the liquid to be defoamed flowing through the feed port 9.
  • the bubble counting unit 12 at the discharge port 10 detects and counts the number of bubbles in the defoamed liquid flowing through the discharge port 10. .
  • the defoaming rate of the bubbles can be judged to determine whether or not the defoaming is completed.
  • the defoaming device further includes: an agitating unit disposed in the defoaming chamber 1 and configured to agitate the liquid to be defoamed; and a vacuum unit 8 configured to extract the defoaming chamber The gas inside 1.
  • the agitation unit is provided in the defoaming device of the present exemplary embodiment, and the liquid to be defoamed can be agitated at the time of defoaming to facilitate the floating of the bubbles.
  • the agitation unit includes an agitator 71 and a motor 72, and the agitator 71 is rotated by the motor 72 to agitate the liquid to be defoamed.
  • the arrangement of the stirring unit is also various.
  • the agitator 71 can protrude from above the defoaming chamber 1 as shown in FIG. 1; alternatively, the agitator 71 can also directly insert the liquid from below the defoaming chamber 1.
  • Medium (of course, the motor 72 should also be set accordingly Below the defoaming chamber 1).
  • a vacuum unit 8 (for example, a vacuum pump or an opening connected to the vacuum pump) may be further provided in the defoaming device, and the vacuum unit 8 is configured to draw out gas in the defoaming chamber 1 to defoam A low air pressure (approx. vacuum) is maintained within the chamber 1 to promote the bubbling of air bubbles in the liquid.
  • the vacuum unit 8 may be used in conjunction with the atmosphere analyzer 6. As described above, after the vacuum unit 8 vacuums the defoaming chamber 1, the gas content inside the defoaming chamber 1 (which may be the content of a component gas in the gas) may be analyzed and detected by the atmosphere analyzer 6. Thereby determining whether the defoaming is completed.
  • the defoaming device of the present exemplary embodiment includes a closable defoaming chamber 1 and a heating unit 2, and during the defoaming process, the defoaming chamber 1 is heated by the heating unit 2, thereby heating the defoaming chamber 1
  • the liquid to be defoamed is placed so that the viscosity of the liquid to be defoamed decreases as the temperature increases, so as to overflow the bubbles, thereby accelerating the defoaming speed.

Abstract

一种脱泡装置，该脱泡装置包括：能封闭的脱泡腔体（1），其构造为盛放待脱泡液体；加热单元（2），其构造为加热脱泡腔体（1）；温度检测单元（3），其构造为检测脱泡腔体（1）内的温度；以及控制器（11），其构造为接收温度检测单元（3）所检测到的温度并且根据该温度控制加热单元（2）。

Description

脱泡装置
相关申请的交叉引用
本申请要求2017年3月6日在中国国家知识产权局提交的中国专利申请No.201710129832.7的优先权，该申请的全部内容以引用方式并入本文。
技术领域
本公开涉及液体脱泡技术领域，并且具体地涉及一种脱泡装置。
背景技术
在液晶显示面板制作过程当中会用到高粘度药液(例如聚酰亚胺配向液)，为了得到更好的成品效果，需要将药液中的气泡除去。
但在现有技术中至少存在如下问题：由于待脱泡药液的粘度较大，因此在对其进行脱泡时，脱泡时间较长，从而导致脱泡效率低下。
发明内容
为了至少部分解决现有技术中存在的技术问题而完成了本公开，根据本公开的一个方面，提供了一种脱泡装置，包括：
能封闭的脱泡腔体，其构造为盛放待脱泡液体；
加热单元，其构造为加热所述脱泡腔体；
温度检测单元，其构造为检测所述脱泡腔体内的温度；以及
控制器，其构造为接收所述温度检测单元所检测到的温度并且根据所述温度控制所述加热单元。
所述温度检测单元可以包括多个温度传感器，多个所述温度 传感器构造为检测所述脱泡腔体中的不同位置的温度。
多个所述温度传感器可以沿第一方向布置在所述脱泡腔体中。
所述加热单元可以包括一根加热丝，所述加热丝构造为围绕所述脱泡腔体从所述脱泡腔体的基部盘旋上升以对所述脱泡腔体整体加热。
所述加热单元可以包括多根加热丝，并且所述脱泡腔体包括多个子区域，每根所述加热丝构造为对所述脱泡腔体的一个子区域进行加热。
所述加热单元可以包括沿所述第一方向依次布置的多根沿与所述第一方向垂直的第二方向延伸的加热丝，并且所述脱泡腔体包括多个子区域，每根所述加热丝构造为对所述脱泡腔体的一个子区域进行加热，多个所述温度传感器中的与所述一个子区域对应的温度传感器检测所述一个子区域的温度，从而经由所述控制器对所述一个子区域的温度进行精确控制。
所述脱泡腔体可以具有倒锥形基部，所述倒锥形基部上设置有进料口和排料口，所述排料口位于所述倒锥形基部的最低点，所述进料口位于比所述排料口高的位置。
所述进料口和所述排料口可以均设置有气泡统计单元。
所述脱泡装置还可以包括保温层，所述保温层设置在所述脱泡腔体的外表面上。
所述脱泡装置还可以包括脱泡监测单元，所述脱泡监测单元构造为监测所述脱泡腔体中的液体的脱泡状态。
所述脱泡监测单元可以包括图像采集单元，所述图像采集单元构造为采集所述脱泡腔体内的液体的图像。
所述脱泡监测单元可以包括气氛分析仪，所述气氛分析仪构造为检测所述脱泡腔体中的气体的含量。
所述气氛分析仪可以为氧气分析仪。
所述脱泡装置还可以包括搅拌单元，所述搅拌单元设置在所述脱泡腔体内并且构造为搅动待脱泡液体。
所述脱泡装置还可以包括真空单元，所述真空单元构造为抽出所述脱泡腔体内的气体。
附图说明
图1是示出了根据本公开的示例性实施例的脱泡装置的结构的示意图；
图2是示出了根据本公开的示例性实施例的脱泡装置中的一种加热丝设置方式的示意图；
图3是示出了根据本公开的示例性实施例的脱泡装置中的另一种加热丝设置方式的示意图；以及
图4是某量产聚酰亚胺材料的粘度与温度之间的关系的示意图。
具体实施方式
为使本领域技术人员更好地理解本公开的技术方案，下面结合附图和具体实施方式对本公开作进一步详细描述。
本公开的示例性实施例提供一种用于对待脱泡液体进行脱泡的脱泡装置，该待脱泡液体可以是诸如柔性聚酰亚胺材料、纸浆等粘度较高的液体。
图1是示出了根据本公开的示例性实施例的脱泡装置的结构的示意图。根据本公开的一个方面，如图1所示，本示例性实施例中的脱泡装置包括：能封闭的脱泡腔体1，其构造为盛放待脱泡液体；以及加热单元2，其构造为加热脱泡腔体1。
在本公开的示例性实施例中，应当理解的是，为了便于对脱泡装置的各个部件的相对位置关系进行更好的描述，在此限定第一方向以及第二方向。具体而言，该第一方向是与图1中的脱泡腔体1的竖直的壁部平行的方向，即不论脱泡装置(具体地，脱泡腔体1)的摆放位置如何，第一方向始终与所述壁部平行。第二方向是与第一方向垂直的方向。
在本公开的示例性实施例中，在将待脱泡液体经由进料口9 送入到脱泡腔体1中之后，将脱泡腔体1封闭，然后通过加热单元2加热脱泡腔体1，进而加热脱泡腔体1内的液体，在完成对液体的脱泡之后，从排料口10排出液体。
在本公开的示例性实施例中，脱泡腔体1具有倒锥形基部，具体而言，如图1所示，该倒锥形基部是沿第一方向(在图1的情况下，其为竖直方向)从下到上第二方向上的横截面面积逐渐增大的脱泡腔体1的下部。进料口9和排料口10设置在该倒锥形基部上，其中，排料口10位于倒锥形基部的最低点，进料口9位于比排料口10高的位置。如此设置的排料口10可以确保充分排出已被脱泡的液体。与从脱泡腔体1上部引入待脱泡液体时会将额外的气泡引入到待脱泡液体中的情况相比，如此设置的进料口9可以在待脱泡液体刚开始进入脱泡腔体1时使待脱泡液体沿倒锥形基部的壁部流动而不将额外的气泡引入到待脱泡液体中，随着待脱泡液体在脱泡腔体1中的累积，进料口9变为位于待脱泡液体的液面之下，在这种情况下，继续从进料口9送入待脱泡液体同样不会将额外的气泡引入到待脱泡液体中。
另外，液体的粘度与温度存在一定的相关性，随着温度的升高，液体的粘度会降低(例如，图4中示出的某量产聚酰亚胺材料的粘度与温度之间的关系)。此外，液体中的气泡的上升速度与液体的粘度成反比，也就是说，液体的粘度越低，气泡上升速度越快。因此，在本示例性实施例中，通过在对待脱泡液体脱泡时加热待脱泡液体以降低待脱泡液体的粘度，有利于气泡的溢出，进而加快液体的脱泡速度。
在本公开的示例性实施例中，加热单元2的设置位置及具体形式不做具体限制，其只要能够实现对脱泡腔体1加热即可。
图2是示出了根据本公开的示例性实施例的脱泡装置中的一种加热丝设置方式的示意图。如图2所示，作为本示例性实施例的一种方式，加热单元2包括一根加热丝21，加热丝21构造为对脱泡腔体1进行整体加热。
也就是说，如图2所示，加热单元2可仅设有一根加热丝21， 该加热丝21围绕脱泡腔体1设置(例如埋设在脱泡腔体1的侧壁中)，且从脱泡腔体1的基部盘旋上升而延伸到脱泡腔体1的各个位置处。这样，该加热丝21进行加热时，可对脱泡腔体1的各个位置统一进行加热(即整体加热)，这种设置方式简化了结构并便于控制。
图3是示出了根据本公开的示例性实施例的脱泡装置中的另一种加热丝设置方式的示意图。如图3所示，作为本示例性实施例的另一种方式，加热单元2可以包括多根加热丝21，并且脱泡腔体1包括沿第一方向分布的多个子区域，每个子区域和每根加热丝一一对应，每根加热丝21构造为对与所述加热丝对应的脱泡腔体1的子区域进行加热。
也就是说，如图3所示，加热单元2包括多根加热丝21，且每根加热丝21缠绕在脱泡腔体1的一部分区域(如沿第一方向的不同位置的区域)上，从而每根加热丝21进行加热时分别对与其对应的脱泡腔体1的部分区域进行加热。显然，不同加热丝21可分别独立地工作，即各加热丝21是否加热以及加热温度是多少是互不相关的，由此加热单元2可根据需要分别用不同加热丝21对脱泡腔体1的不同位置进行不同程度的加热(即分区加热)，以更好的满足脱泡的要求，例如，若待脱泡液体仅占据脱泡腔体1的一半，则可仅让与脱泡腔体1下半部对应的加热丝21进行加热，而其它加热丝21不工作。
可以理解的是，加热丝21可以以诸如螺旋环绕方式、“S”型布置方式、水平布置方式等方式覆盖脱泡腔体1的整体或者部分区域，加热丝21的排布密度可以根据实际情况酌情设置，在此不做具体限定。
在本公开的示例性实施例中，脱泡装置还包括温度检测单元3和控制器11。温度检测单元3构造为检测脱泡腔体1内的温度，并将温度反馈给控制器11。控制器11与温度检测单元3连接，并根据温度检测单元3检测到的温度控制加热单元2。
利用温度检测单元3实时检测脱泡腔体1内的温度，即脱泡 腔体1内的待脱泡液体的脱泡温度，并反馈给控制器11，控制器11根据反馈的脱泡温度控制加热单元2，从而能够精准控制脱泡温度，以使待脱泡液体在最佳脱泡温度下脱泡，进而提高脱泡装置的脱泡效率。
需要说明的是，除了根据温度检测单元3检测到的温度之外，控制器11还可以结合待脱泡液体的材料性质以及粘度等因素控制加热单元2。
在本公开的示例性实施例中，温度检测单元3包括多个温度传感器31，温度传感器例如可以是铠装式热电偶、固定法兰式温度传感器、螺纹固定温度传感器等，多个温度传感器31构造为检测脱泡腔体1中的不同位置的温度。
具体而言，温度检测单元3可以包括多个温度传感器31，通过在脱泡腔体1的不同位置(例如，不同高度的位置)分别设置温度传感器31，可以使温度测量更精准，从而进一步提高脱泡装置的脱泡效率。
当然，温度传感器31的设置数量及位置可以根据实际需求来设置，例如，多个温度传感器31可如图1所示那样沿第一方向设于一个竖杆的不同位置。作为选择，温度传感器31也可设于脱泡腔体1的内壁上。另外，如果温度传感器31为红外温度传感器等，则其也可设于脱泡腔体1外部(当然，脱泡腔体1上需要设置供红外线通过的窗口)。当然，温度检测单元3也可以为可用于测量温度的其它设备。
在本公开的示例性实施例中，加热单元2包括沿第一方向依次布置的多根沿第二方向延伸的加热丝21，并且脱泡腔体1包括沿第一方向分布的多个子区域，每根加热丝21构造为对脱泡腔体1的一个子区域进行加热，多个温度传感器31中的与该一个子区域对应的温度传感器检测该一个子区域的温度，从而经由控制器11对该一个子区域的温度进行精确控制。
在本公开的示例性实施例中，脱泡装置还包括设于脱泡腔体1的外表面上的保温层4。
保温层4(例如橡塑保温层、聚氨酯保温层)设置于脱泡腔体1的外表面上，以用于在脱泡时隔断或者减少脱泡装置(包括脱泡腔体1与加热单元2)与外界的热量传递，从而减少热量损失，节约能量。
在本公开的示例性实施例中，脱泡装置还包括构造为监测脱泡腔体1中的液体的脱泡状态的脱泡监测单元。
通过脱泡监测单元可以实时获取脱泡腔体1内的液体的脱泡状态(液体中的气泡含量)，以便于据此调整脱泡装置的脱泡温度或者脱泡时间，从而避免不必要的资源浪费。
在本公开的示例性实施例中，脱泡监测单元包括构造为采集脱泡腔体1内的液体的图像的图像采集单元5。
根据图像采集单元5所采集的图像可以直观地判断出液体的脱泡状态，例如当脱泡完成时，可以从所采集的图像中看到液体中无气泡。
在本公开的示例性实施例中，该图像采集单元5可以为摄像机，其实时对脱泡腔体1内的液体的状态进行摄像或者拍照。进一步地，该摄像机还设有照明装置(例如LED灯)，以使所采集的图像更清晰。当然，本示例性实施例中的图像采集单元5的具体设置形式并不限于设在脱泡腔体1内，例如，图像采集单元5也可设在脱泡腔体1外，通过脱泡腔体1的壁部上的透明窗体采集脱泡腔体1内部的图像；或者，图像采集单元5也可设于脱泡腔体1基部来采集液体内部的图像。
在本公开的示例性实施例中，脱泡监测单元包括构造为检测脱泡腔体1中的气体含量的气氛分析仪6。
显然，从液体中脱出的气泡中的气体会进入到脱泡腔体1的上部中，故在脱泡过程中，脱泡腔体1中的气体含量也会随液体中的气泡含量的变化而发生变化。例如，在不抽真空的状态下，脱泡腔体1中的气体含量会随着气泡的脱出而增加，而在气泡脱完后，气体含量会保持稳定；再如，在抽真空进行脱泡时，则随着气泡的不断脱出，脱泡腔体1中会稳定地含有微量的气体(因 为这些气体不可能被瞬间抽出)，而在脱泡完成后，脱泡腔体1中的气体含量会稳定在一个更低的值。因此，本示例性实施例通过气氛分析仪6对脱泡腔体1内部的气体含量(可以为气体中某一成分气体的含量)进行分析检测，从而判断脱泡是否完成。
在本公开的示例性实施例中，气氛分析仪6为氧气分析仪。
气泡通常是在大气环境下由于运输震动等原因造成的，故气泡中的气体成份与大气成分相同，即主要含有氧气、氮气等。在本示例性实施例中，采用氧气分析仪作为气氛分析仪6对脱泡腔体1内的氧气含量进行分析，从而判断脱泡是否完成。
当然，气氛分析仪6的具体设置方式也是多样的，其可如图1所示那样设于脱泡腔体1外但与脱泡腔体1内部联通；或者，气氛分析仪6也可直接设于脱泡腔体1内部。
在本公开的示例性实施例中，进料口9和排料口10均设置有气泡统计单元12。在经由进料口9将待脱泡液体引入到脱泡腔体1中时，进料口9处的气泡统计单元12检测并统计流过进料口9的待脱泡液体中的气泡的数量。在经由排料口10将已脱泡液体排出到脱泡腔体1外部时，排料口10处的气泡统计单元12检测并统计流过排料口10的已脱泡液体中的气泡的数量。通过比较脱泡前后的液体中的气泡的数量，可以判断出气泡的脱泡率，从而判断脱泡是否完成。
在本公开的示例性实施例中，脱泡装置还包括：搅拌单元，其设于脱泡腔室1内并且构造为搅动待脱泡液体；以及真空单元8，其构造为抽出脱泡腔体1内的气体。
在本示例性实施例的脱泡装置中设置搅拌单元，可以在脱泡时搅动待脱泡液体，以便于气泡的浮出。具体而言，搅拌单元包括搅拌器71和马达72，通过马达72带动搅拌器71转动，从而搅动待脱泡液体。
当然，搅拌单元的设置方式也是多样的，例如，搅拌器71可如图1所示那样从脱泡腔体1上方伸入；或者，搅拌器71也可从脱泡腔体1下方直接插入液体中(当然，马达72也要相应地设在 脱泡腔体1下方)。
在本公开的示例性实施例中，脱泡装置中还可以设有真空单元8(例如真空泵或者与真空泵相连的开口)，真空单元8构造为抽出脱泡腔体1内的气体以使脱泡腔体1内保持低气压(近似真空)，从而促进液体中的气泡的浮出。
在本公开的示例性实施例中，真空单元8可以与气氛分析仪6配合使用。如上所述，可以在真空单元8对脱泡腔体1抽真空后，通过气氛分析仪6对脱泡腔体1内部的气体含量(可以为气体中某一成分气体的含量)进行分析检测，从而判断脱泡是否完成。
本示例性实施例的脱泡装置包括能封闭的脱泡腔体1和加热单元2，在脱泡过程中，通过加热单元2对脱泡腔体1进行加热，进而加热脱泡腔体1内所盛放的待脱泡液体，从而使待脱泡液体的粘度随着温度的升高而降低，以便于气泡的溢出，进而加快脱泡速度。利用本示例性实施例提供的脱泡装置可以实现在对液体脱泡时，尤其是在对高粘度液体脱泡时，缩短液体的脱泡时间，提高脱泡效率。
可以理解的是，以上实施方式仅仅是为了说明本公开的原理而采用的示例性实施方式，然而本公开并不局限于此。对于本领域内的普通技术人员而言，在不脱离本公开的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本公开的保护范围。

Claims (16)

  1. 一种脱泡装置，包括：
    能封闭的脱泡腔体，其构造为盛放待脱泡液体；
    加热单元，其构造为加热所述脱泡腔体；
    温度检测单元，其构造为检测所述脱泡腔体内的温度；以及
    控制器，其构造为接收所述温度检测单元所检测到的温度并且根据所述温度控制所述加热单元。
  2. 根据权利要求1所述的脱泡装置，
    其中，所述温度检测单元包括多个温度传感器，多个所述温度传感器构造为检测所述脱泡腔体中的不同位置的温度。
  3. 根据权利要求2所述的脱泡装置，
    其中，多个所述温度传感器沿第一方向布置在所述脱泡腔体中。
  4. 根据权利要求1所述的脱泡装置，
    其中，所述加热单元包括一根加热丝，所述加热丝构造为围绕所述脱泡腔体从所述脱泡腔体的基部盘旋上升以对所述脱泡腔体整体加热。
  5. 根据权利要求1所述的脱泡装置，
    其中，所述加热单元包括多根加热丝，并且所述脱泡腔体包括多个子区域，所述子区域与所述加热丝一一对应，每根所述加热丝构造为对与所述加热丝对应的所述脱泡腔体的子区域进行加热。
  6. 根据权利要求3所述的脱泡装置，
    其中，所述加热单元包括沿所述第一方向依次布置的多根沿 第二方向延伸的加热丝，并且所述脱泡腔体包括多个子区域，每根所述加热丝构造为对所述脱泡腔体的一个子区域进行加热，多个所述温度传感器中的与所述一个子区域对应的温度传感器检测所述一个子区域的温度，从而经由所述控制器对所述一个子区域的温度进行精确控制。
  7. 根据权利要求1所述的脱泡装置，
    其中，所述脱泡腔体具有倒锥形基部，所述倒锥形基部上设置有进料口和排料口，所述排料口位于所述倒锥形基部的最低点，所述进料口位于比所述排料口高的位置。
  8. 根据权利要求7所述的脱泡装置，
    其中，所述进料口和所述排料口均设置有气泡统计单元。
  9. 根据权利要求1所述的脱泡装置，还包括：
    保温层，其设置在所述脱泡腔体的外表面上。
  10. 根据权利要求1所述的脱泡装置，还包括：
    脱泡监测单元，其构造为监测所述脱泡腔体中的液体的脱泡状态。
  11. 根据权利要求10所述的脱泡装置，
    其中，所述脱泡监测单元包括：
    图像采集单元，其构造为采集所述脱泡腔体内的液体的图像。
  12. 根据权利要求10所述的脱泡装置，
    其中，所述脱泡监测单元包括：
    气氛分析仪，其构造为检测所述脱泡腔体中的气体的含量。
  13. 根据权利要求12所述的脱泡装置，
    其中，所述气氛分析仪为氧气分析仪。
  14. 根据权利要求1所述的脱泡装置，还包括：
    搅拌单元，其设置在所述脱泡腔体内并且构造为搅动待脱泡液体。
  15. 根据权利要求1所述的脱泡装置，还包括：
    真空单元，其构造为抽出所述脱泡腔体内的气体。
  16. 根据权利要求12所述的脱泡装置，还包括：
    真空单元，其构造为抽出所述脱泡腔体内的气体。
PCT/CN2017/108034 2017-03-06 2017-10-27 脱泡装置 WO2018161608A1 (zh)

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CN110304287B (zh) * 2019-07-17 2021-03-02 深圳市麦力西科技有限公司 搅拌脱泡灌装装置及灌装方法
CN111228860A (zh) * 2020-01-06 2020-06-05 上海玄森实业有限公司 一种用于连续生产的离心式真空脱气机
CN113617066A (zh) * 2021-08-13 2021-11-09 江苏美科太阳能科技有限公司 一种自动加料脱泡装置及方法
CN114800984A (zh) * 2022-04-18 2022-07-29 广东烨嘉光电科技股份有限公司 一种用于树脂镜片加工的模具浇筑设备
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