WO2021092717A1 - 一种用激光标定法实时监控旋蒸液体积的系统及方法 - Google Patents

一种用激光标定法实时监控旋蒸液体积的系统及方法 Download PDF

Info

Publication number
WO2021092717A1
WO2021092717A1 PCT/CN2019/117009 CN2019117009W WO2021092717A1 WO 2021092717 A1 WO2021092717 A1 WO 2021092717A1 CN 2019117009 W CN2019117009 W CN 2019117009W WO 2021092717 A1 WO2021092717 A1 WO 2021092717A1
Authority
WO
WIPO (PCT)
Prior art keywords
laser
rotary
liquid
indicator
volume
Prior art date
Application number
PCT/CN2019/117009
Other languages
English (en)
French (fr)
Inventor
陈晓东
郑旭峰
Original Assignee
南通东概念新材料有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南通东概念新材料有限公司 filed Critical 南通东概念新材料有限公司
Priority to PCT/CN2019/117009 priority Critical patent/WO2021092717A1/zh
Publication of WO2021092717A1 publication Critical patent/WO2021092717A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/08—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in rotating vessels; Atomisation on rotating discs

Definitions

  • the invention relates to the technical field of rotary evaporation, in particular to a system and method for real-time monitoring of the volume of rotary evaporation liquid by a laser calibration method.
  • Rotary evaporator is a commonly used equipment in laboratories, composed of motors, distillation flasks, heating pots, condensers, etc. It is mainly used to continuously distill a large number of volatile solvents under reduced pressure, and is used in chemistry, chemical engineering, biomedicine and other fields. .
  • the rotary evaporator mainly uses a certain volume of rotary evaporator to take out the remaining liquid after a certain period of rotary evaporator for test analysis or further experiments.
  • the rotary evaporator is only suspended when the rotary evaporator is suspended. Only by measuring the volume of the medium liquid can we know how much liquid is left in the rotary steaming bottle, that is, the volume change of the rotary steaming liquid cannot be monitored in real time during the rotary steaming process, which has an inconvenient influence on the experiment.
  • the technical problem to be solved by the present invention is to provide a system and method for real-time monitoring of the volume of the rotary evaporation liquid by using the laser calibration method in view of the above-mentioned shortcomings of the prior art.
  • a system for real-time monitoring of the volume of a rotary evaporation liquid by a laser calibration method includes a rotary evaporator.
  • the rotary evaporator includes a support base and a rotary vaporization bottle arranged on one side of the support base.
  • the support base is connected with a support and a support Set on one side of the rotary steaming bottle; above the bracket is connected with a calibration plate through a hinge; the calibration plate is provided with a ruler on one side, and the other side is fixedly connected with a sliding table; the sliding table is penetrated with an adjusting screw
  • a laser support is threadedly connected to the adjusting screw; a laser and an indicator needle are connected side by side under the laser support; and the indicator needle is arranged directly above the scale.
  • a circle of indicator strips is wrapped around the rotary steaming bottle, and the indicator strips are white thin paper strips of 1-1.2 mm.
  • the calibration plate adopts a transparent plastic plate.
  • the sliding table includes a sliding table base connected to the calibration plate, and a sliding table block is connected to the front and rear ends of the sliding table base; the adjusting screw is penetrated on the sliding table block at the front end of the sliding table base.
  • a method for real-time monitoring of the volume of the rotary evaporation liquid by a laser calibration method includes the following steps:
  • Step 1 Put a known volume of the rotary steaming liquid in the rotary steaming bottle, turn the adjusting screw to move the laser at the bottom of the laser holder, and use the indicator bar on the rotary steaming bottle to make the laser spot emitted by the laser and the rotary steaming
  • the liquid level and the indicator strip pass through the edge of the liquid level, the three points coincide, and the reading of the indicator needle on the scale is recorded;
  • Step 2 Put different known volumes of the rotary steaming liquid in the rotary steaming bottle, and repeat step 1 to draw the standard curve between the different volumes of rotary steaming liquid and the readings on the scale where the indicator needle is located;
  • Step 3 Add the liquid to be steamed into the steaming bottle.
  • the edge of the liquid in the steaming bottle is captured by moving the laser during the experiment.
  • the laser spot emitted by the laser is compared with the steaming liquid
  • the edge of the surface and the indicator bar coincide, record the scale value of the indicator ruler on the indicator needle at this time, and enter the scale value into the standard curve in step 2 to obtain the volume of the rotating liquid in the process in real time.
  • the present invention uses a laser calibration method to monitor the volume of the rotary evaporation liquid in real time.
  • the laser spot emitted by the laser tracks the edge of the liquid surface in the rotary evaporation bottle that is undergoing rotary evaporation.
  • the photoelectric sensor can be combined with the control system to control the remaining volume of the rotary steaming liquid, and realize the dynamic control of the rotary steaming operation process and the remote control function.
  • Figure 1 is a schematic diagram of the structure of the present invention
  • Figure 2 is a top view of the present invention
  • Fig. 3 is a standard curve with an angle of 45° between the calibration plate of the present invention and the liquid level in the rotary steaming bottle;
  • Figure 4 is a standard curve of the horizontal included angle between the calibration plate of the present invention and the liquid level in the rotary steaming bottle;
  • a system for real-time monitoring of the volume of a rotary evaporation liquid by a laser calibration method includes a rotary evaporator 10 that includes a support base and a rotary vaporization bottle arranged on one side of the support base, The rotary evaporator 10 is used for continuous distillation of volatile solvents under reduced pressure; a support 7 is connected to the support base, and the support 7 is arranged on one side of the rotary steaming bottle; the upper part of the support 7 is connected with a calibration plate through a hinge 8 6; By setting the hinge 6, the calibration plate 6 and the bracket 7 are turned and connected. When the calibration plate 6 is turned over, it will be at a certain angle with the horizontal plane of the rotary steaming bottle.
  • the calibration plate can be received into the bracket 7 through the hinge 6 Side; the calibration plate 6 is provided with a scale on one side, and the other side is fixedly connected with a sliding table 5; the sliding table 5 is provided with an adjusting screw 4; the sliding table 5 includes a calibration plate 6
  • the sliding platform has a sliding platform block connected to the front and rear ends of the sliding platform; the adjusting screw 4 is penetrated on the sliding platform block at the front end of the sliding platform.
  • the adjusting screw 4 is threadedly connected with a laser holder 2; below the laser holder 2 are connected a laser 1 and an indicator needle 3 side by side; the indicator needle 3 is arranged directly above the scale.
  • an indicator strip 9 is wound around the rotary steaming bottle, and the indicator strip 9 is a thin white paper strip of 1 to 1.2 mm.
  • the calibration plate 6 is a transparent plastic plate.
  • a method for real-time monitoring of the volume of the rotary evaporation liquid by a laser calibration method includes the following steps:
  • Step 1 Put 500ml of the mixed solution of water and alcohol in the rotary steaming bottle, turn the adjusting screw 4 to move the laser 1 at the bottom of the laser bracket 2, and use the indicator bar 9 on the rotary steaming bottle to make the laser 1 emit
  • the laser spot of coincides with three points when the liquid surface of the rotary evaporation liquid and the indicator strip pass the edge of the liquid surface, and the reading of the indicator needle 3 on the scale is recorded;
  • Step 2 Put 400mL, 300mL, 200mL, 100mL and 50mL of the mixed solution of water and alcohol in the rotary steaming bottle, and repeat step 1. The readings are drawn into a standard curve, as shown in Figures 3 and 4;
  • Step 3 Add the liquid to be vaporized in the rotary steaming bottle. According to the standard curve obtained in step 2, move the laser 1 to capture the edge of the liquid in the rotary steaming bottle during the experiment. When the laser spot emitted by the laser 1 and the rotary steaming bottle When the edge of the steaming liquid surface coincides with the indicator bar 9, record the scale value of the indicator ruler of the indicator needle 3 at this time, and input the scale value into the standard curve in step 2 to obtain the volume of the steaming liquid in the process in real time.

Abstract

一种用激光标定法实时监控旋蒸液体积的系统及方法，包括旋转蒸发仪，所述旋转蒸发仪一侧连接有支架；所述支架上方通过合页连接有标定板；所述标定板上一侧设置有标尺，另一侧固定连接有滑台；所述滑台上穿设有调节螺杆，调节螺杆上螺纹连接有激光器支架；所述激光器支架下方并排连接有激光器和指示针；所述指示针设置于标尺正上方；所述旋蒸瓶上缠绕有一圈指示条。与现有技术相比，本发明的一种用激光标定法实时监控旋蒸液体积的系统及方法，利用激光器发射出的激光光斑与旋蒸液面边缘和指示条三者相重合时，记录数据并绘制成标准曲线图，在实验室，通过指示针读数与先前绘制的标准曲线进行对比，即可获得到旋蒸瓶内液体体积的数值。

Description

一种用激光标定法实时监控旋蒸液体积的系统及方法 技术领域
本发明涉及旋蒸技术领域，具体是指一种用激光标定法实时监控旋蒸液体积的系统及方法。
背景技术
旋转蒸发仪是实验室常用设备，由马达、蒸馏瓶、加热锅、冷凝管等部分组成的，主要用于减压条件下连续蒸馏大量易挥发性溶剂，应用于化学、化工、生物医药等领域。
目前旋蒸仪主要还是应用一定体积的旋蒸液经过一定时间的旋蒸后取出剩余液体进行测试分析或是进一步的实验，在此旋蒸过程中只有暂停旋蒸仪的情况下将旋蒸瓶中液体倒出测量体积，才能知道旋蒸瓶中剩余多少旋蒸液，即不能实时监控在旋蒸过程中旋蒸液的体积变化情况，对实验造成及其不方便的影响。
发明内容
本发明要解决的技术问题是针对上述现有技术的不足，而提供一种用激光标定法实时监控旋蒸液体积的系统及方法。
为解决上述技术问题，本发明采用的技术方案是：
一种用激光标定法实时监控旋蒸液体积的系统，包括旋转蒸发仪，所述旋转蒸发仪包括支撑座以及设置于支撑座一侧的旋蒸瓶，所述支撑座上连接有支架，支架设置于旋蒸瓶一侧；所述支架上方通过合页连接有标定板；所述标定板上一侧设置有标尺，另一侧固定连接有滑台；所述滑台上穿设有调节螺杆，调节螺杆上螺纹连接有激光器支架；所述激光器支架下方并排连接有激光器和指示针；所述指示针设置于标尺正上方。
进一步的，所述旋蒸瓶上缠绕有一圈指示条，指示条采用1～1.2mm的白色细纸条。
进一步的，所述标定板采用透明的塑料板。
进一步的，所述滑台包括连接于标定板上的滑台座，滑台座前后端连接有滑台块；所述调节螺杆穿设于滑台座前端的滑台块上。
一种用激光标定法实时监控旋蒸液体积的方法，包括以下步骤：
步骤一：在旋蒸瓶内放入已知体积的旋蒸液，旋拧调节螺杆使激光器支架底部的激光器移动，并且借助旋蒸瓶上的指示条，使激光器发射出的激光光斑与旋蒸液液面和指示条经过液面边缘时三点重合，并记录指示针在标尺上的读数；
步骤二：在旋蒸瓶内放入不同已知体积的旋蒸液，并重复步骤一，将不同体积下的旋蒸 液与指示针所在标尺刻度上的读数绘制成标准曲线；
步骤三：在旋蒸瓶内加入待旋蒸液体，根据步骤二中获得的标准曲线，在实验过程中通过移动激光器捕捉旋蒸瓶内液体的边缘，当激光器发射出的激光光斑与旋蒸液面边缘和指示条三者相重合时，记录此时指示针所指标尺的刻度值，将刻度值输入步骤二中的标准曲线可以实时获得过程中旋蒸液的体积。
与现有技术相比，本发明的一种用激光标定法实时监控旋蒸液体积的系统及方法，通过激光器发射出的激光光斑对旋蒸瓶内正在进行旋蒸的液面边缘进行跟踪，同时记录指示针所指标尺处刻度值的读数，将读数与先前绘制的标准曲线进行对比，即可获得到旋蒸瓶内液体体积的数值，避免了暂停旋蒸仪进行测量瓶内体积，提升了实验过程效率；后期可将光电传感器与控制系统相结合，用于控制旋蒸液的剩余体积量，实现动态控制旋蒸的操作过程以及远程控制功能。
附图说明
图1是本发明的结构示意图；
图2是本发明的俯视图；
图3是本发明标定板与旋蒸瓶内液面成45°夹角的标准曲线；
图4是本发明标定板与旋蒸瓶内液面成水平夹角的标准曲线；
其中，1、激光器，2、激光器支架，3、指示针，4、调节螺杆，5、滑台，6、标定板，7、支架，8、合页，9、指示条，10、旋转蒸发仪。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。
如图1和2所示，一种用激光标定法实时监控旋蒸液体积的系统，包括旋转蒸发仪10，所述旋转蒸发仪10包括支撑座以及设置于支撑座一侧的旋蒸瓶，旋转蒸发仪10用于减压条件下连续蒸馏易挥发性溶剂；所述支撑座上连接有支架7，支架7设置于旋蒸瓶一侧；所述支架7上方通过合页8连接有标定板6；通过设置合页6，使标定板6与支架7翻转连接，当标定板6翻转后与旋蒸瓶水平面成一定角度，在实验结束时通过合页6可将标定板收至支架7一侧；所述标定板6上一侧设置有标尺，另一侧固定连接有滑台5；所述滑台5上穿设有调节螺杆4；所述滑台5包括连接于标定板6上的滑台座，滑台座前后端连接有滑台块；所述调节螺杆4穿设于滑台座前端的滑台块上。
所述调节螺杆4上螺纹连接有激光器支架2；所述激光器支架2下方并排连接有激光器 1和指示针3；所述指示针3设置于标尺正上方。
为了方便观察以及观察时具有有效的参照物，所述旋蒸瓶上缠绕有一圈指示条9，指示条9采用1～1.2mm的白色细纸条。
在本实施例中，所述标定板6采用透明的塑料板。
一种用激光标定法实时监控旋蒸液体积的方法，包括以下步骤：
步骤一：在旋蒸瓶内放入500ml的水和酒精的混合溶液，旋拧调节螺杆4使激光器支架2底部的激光器1移动，并且借助旋蒸瓶上的指示条9，使激光器1发射出的激光光斑与旋蒸液液面和指示条经过液面边缘时三点重合，并记录指示针3在标尺上的读数；
步骤二：在旋蒸瓶内依次放入400mL、300mL、200mL、100mL和50mL的水和酒精的混合溶液，并重复步骤一，将不同体积下的旋蒸液与指示针3所在标尺刻度上的读数绘制成标准曲线，如图3和4所示；
步骤三：在旋蒸瓶内加入待旋蒸液体，根据步骤二中获得的标准曲线，在实验过程中通过移动激光器1捕捉旋蒸瓶内液体的边缘，当激光器1发射出的激光光斑与旋蒸液面边缘和指示条9三者相重合时，记录此时指示针3所指标尺的刻度值，将刻度值输入步骤二中的标准曲线可以实时获得过程中旋蒸液的体积。
在实验过程中，如旋蒸瓶转速太高不易观察时可以降速后读数，便于液体体积的测量与记录。
本发明并不局限于所述的实施例，本领域的技术人员在不脱离本发明的精神即公开范围内，仍可作一些修正或改变，故本发明的权利保护范围以权利要求书限定的范围为准。

Claims (5)

  1. 一种用激光标定法实时监控旋蒸液体积的系统，包括旋转蒸发仪，所述旋转蒸发仪包括支撑座以及设置于支撑座一侧的旋蒸瓶，其特征在于：所述支撑座上连接有支架，支架设置于旋蒸瓶一侧；所述支架上方通过合页连接有标定板；所述标定板上一侧设置有标尺，另一侧固定连接有滑台；所述滑台上穿设有调节螺杆，调节螺杆上螺纹连接有激光器支架；所述激光器支架下方并排连接有激光器和指示针；所述指示针设置于标尺正上方。
  2. 根据权利要求1所述的一种用激光标定法实时监控旋蒸液体积的系统，其特征在于：所述旋蒸瓶上缠绕有一圈指示条，指示条采用1～1.2mm的白色细纸条。
  3. 根据权利要求1所述的一种用激光标定法实时监控旋蒸液体积的系统，其特征在于：所述标定板采用透明的塑料板。
  4. 根据权利要求1所述的一种用激光标定法实时监控旋蒸液体积的系统，其特征在于：所述滑台包括连接于标定板上的滑台座，滑台座前后端连接有滑台块；所述调节螺杆穿设于滑台座前端的滑台块上。
  5. 一种用激光标定法实时监控旋蒸液体积的方法，其特征在于：包括以下步骤：
    步骤一：在旋蒸瓶内放入已知体积的旋蒸液，旋拧调节螺杆使激光器支架底部的激光器移动，并且借助旋蒸瓶上的指示条，使激光器发射出的激光光斑与旋蒸液液面和指示条经过液面边缘时三点重合，并记录指示针在标尺上的读数；
    步骤二：在旋蒸瓶内放入不同已知体积的旋蒸液，并重复步骤一，将不同体积下的旋蒸液与指示针所在标尺刻度上的读数绘制成标准曲线；
    步骤三：在旋蒸瓶内加入待旋蒸液体，根据步骤二中获得的标准曲线，在实验过程中通过移动激光器捕捉旋蒸瓶内液体的边缘，当激光器发射出的激光光斑与旋蒸液面边缘和指示条三者相重合时，记录此时指示针所指标尺的刻度值，将刻度值输入步骤二中的标准曲线可以实时获得过程中旋蒸液的体积。
PCT/CN2019/117009 2019-11-11 2019-11-11 一种用激光标定法实时监控旋蒸液体积的系统及方法 WO2021092717A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/117009 WO2021092717A1 (zh) 2019-11-11 2019-11-11 一种用激光标定法实时监控旋蒸液体积的系统及方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/117009 WO2021092717A1 (zh) 2019-11-11 2019-11-11 一种用激光标定法实时监控旋蒸液体积的系统及方法

Publications (1)

Publication Number Publication Date
WO2021092717A1 true WO2021092717A1 (zh) 2021-05-20

Family

ID=75911568

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/117009 WO2021092717A1 (zh) 2019-11-11 2019-11-11 一种用激光标定法实时监控旋蒸液体积的系统及方法

Country Status (1)

Country Link
WO (1) WO2021092717A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4738295A (en) * 1985-04-02 1988-04-19 Genser Hans G Method and apparatus for evaporating a fluid in a rotating vacuum evaporation system
CN203408484U (zh) * 2013-08-21 2014-01-29 屈长青 一种可度量的旋转蒸发瓶
CN204034288U (zh) * 2014-09-04 2014-12-24 苏州禾川化学技术服务有限公司 一种智能环保型旋转蒸发仪
CN206823201U (zh) * 2017-02-13 2018-01-02 上海再启生物技术有限公司 旋转蒸发仪
CN108398428A (zh) * 2018-02-01 2018-08-14 耿东晛 一种旋转蒸发仪中残留液体的光学检测方法
CN110559676A (zh) * 2019-08-29 2019-12-13 南通东概念新材料有限公司 一种用激光标定法实时监控旋蒸液体积的系统及方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4738295A (en) * 1985-04-02 1988-04-19 Genser Hans G Method and apparatus for evaporating a fluid in a rotating vacuum evaporation system
CN203408484U (zh) * 2013-08-21 2014-01-29 屈长青 一种可度量的旋转蒸发瓶
CN204034288U (zh) * 2014-09-04 2014-12-24 苏州禾川化学技术服务有限公司 一种智能环保型旋转蒸发仪
CN206823201U (zh) * 2017-02-13 2018-01-02 上海再启生物技术有限公司 旋转蒸发仪
CN108398428A (zh) * 2018-02-01 2018-08-14 耿东晛 一种旋转蒸发仪中残留液体的光学检测方法
CN110559676A (zh) * 2019-08-29 2019-12-13 南通东概念新材料有限公司 一种用激光标定法实时监控旋蒸液体积的系统及方法

Similar Documents

Publication Publication Date Title
CN110559676B (zh) 一种用激光标定法实时监控旋蒸液体积的系统及方法
CN104165824B (zh) 自动锥入度测定仪
CN204495658U (zh) 复杂条件下可调式挠度和模量测试仪
JP2021511962A (ja) 濃縮液及び／又は留分を正確に定量できるエバポレータ
CN103412013A (zh) 一种基于电子舌的鱼粉新鲜度检测装置
CN102905515A (zh) 用于估计液体的张力、势和活度的二面体传感器
CN103728197A (zh) 一种检测纤维含水率和含油率的方法
CN207964565U (zh) 一种可记录渗吸全过程的常压渗吸测量装置
WO2021092717A1 (zh) 一种用激光标定法实时监控旋蒸液体积的系统及方法
CN203178165U (zh) 接装纸透气度检测仪
CN211215486U (zh) 一种用激光标定法实时监控旋蒸液体积的系统
CN204479219U (zh) 二次钢化玻璃全自动表面应力仪
CN103528928A (zh) 一种基于石墨烯的单细胞传感方法
CN202433326U (zh) 吸水厚度膨胀率测试仪
CN206378390U (zh) 一种沥青测试用自动加液式接触角测量仪
CN208751495U (zh) 疵点坐标定位仪
CN103424437A (zh) 一种阻抗法秸秆水分检测方法和装置
CN206670520U (zh) 蜗杆小径快速检测装置
CN113866080B (zh) 一种模拟多孔介质材料盐蚀破坏试验装置及试验方法
CN207254354U (zh) 一种用于测量sod的试管架
CN204740242U (zh) 一种湿度计
CN103363948A (zh) 一种改进的离合器盖总成压盘平行度检测装置
CN204302248U (zh) 一种适于封闭在手套箱中使用的离子色谱装置
CN208283320U (zh) 一种发动机防冻液和刹车油的沸点测试仪
CN212807218U (zh) 一种实时测量旋蒸液体积的装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19952583

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19952583

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 19952583

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205 DATED 05.07.2022)