阅读说明：本技术 一种用激光标定法实时监控旋蒸液体积的系统及方法 (System and method for monitoring volume of rotary evaporation liquid in real time by using laser calibration method ) 是由 陈晓东 郑旭峰 于 2019-08-29 设计创作，主要内容包括：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。(A system and a method for monitoring volume of rotary evaporation liquid in real time by using a laser calibration method comprise a rotary evaporator, wherein one side of the rotary evaporator is connected with a bracket; a calibration plate is connected above the bracket through a hinge; a scale is arranged on one side of the calibration plate, and a sliding table is fixedly connected to the other side of the calibration plate; an adjusting screw rod penetrates through the sliding table, and a laser support is connected to the adjusting screw rod in a threaded manner; a laser and an indicator needle are connected below the laser bracket side by side; the pointer is arranged right above the scale; and a circle of indicating strip is wound on the rotary steaming bottle. Compared with the prior art, the system and the method for monitoring the volume of the rotary evaporation liquid in real time by using the laser calibration method have the advantages that when laser spots emitted by a laser coincide with the edge of the rotary evaporation liquid and an indication strip, data are recorded and drawn into a standard curve graph, and in a laboratory, the numerical value of the volume of the liquid in the rotary evaporation bottle can be obtained by comparing the reading of an indication needle with the previously drawn standard curve.)

1. the utility model provides a system for with laser calibration method real time monitoring evaporate liquid volume soon, includes rotary evaporator, rotary evaporator includes the supporting seat and sets up in the bottle that evaporates soon of supporting seat one side, its characterized in that: the support seat is connected with a bracket which is arranged on one side of the rotary steaming bottle; a calibration plate is connected above the bracket through a hinge; a scale is arranged on one side of the calibration plate, and a sliding table is fixedly connected to the other side of the calibration plate; an adjusting screw rod penetrates through the sliding table, and a laser support is connected to the adjusting screw rod in a threaded manner; a laser and an indicator needle are connected below the laser bracket side by side; the pointer is arranged right above the scale.

2. the system for monitoring the volume of the rotary evaporation liquid in real time by the laser calibration method as claimed in claim 1, wherein a circle of indication strip is wound on the rotary evaporation bottle, and the indication strip is a 1-1.2 mm white thin paper strip.

3. The system according to claim 1, wherein the volume of the spin-on liquid is monitored in real time by laser calibration, and the system comprises: the calibration plate is made of transparent plastic plates.

4. the system according to claim 1, wherein the volume of the spin-on liquid is monitored in real time by laser calibration, and the system comprises: the sliding table comprises a sliding table seat connected to the calibration plate, and the front end and the rear end of the sliding table seat are connected with sliding table blocks; the adjusting screw rod penetrates through the sliding table block at the front end of the sliding table seat.

5. A method for monitoring volume of rotary evaporation liquid in real time by using a laser calibration method is characterized by comprising the following steps: the method comprises the following steps:

The method comprises the following steps: putting rotary steaming liquid with a known volume into a rotary steaming bottle, screwing an adjusting screw rod to move a laser at the bottom of a laser support, enabling laser spots emitted by the laser to coincide with the liquid level of the rotary steaming liquid and three points of the indicating strip to be coincident when the indicating strip passes through the edge of the liquid level by virtue of an indicating strip on the rotary steaming bottle, and recording the reading of an indicating needle on a scale;

Step two: putting different rotary evaporation liquids with known volumes into the rotary evaporation bottle, repeating the step one, and drawing the rotary evaporation liquids with different volumes and the reading on the scale on which the indicating needle is positioned into a standard curve;

step three: and (4) adding the liquid to be steamed in a rotary steaming bottle, capturing the edge of the liquid in the rotary steaming bottle by moving a laser in the experimental process according to the standard curve obtained in the step two, recording the scale value of the scale pointed by the pointer when the laser spot emitted by the laser coincides with the edge of the rotary steaming liquid level and the indication strip, and inputting the scale value into the standard curve in the step two to obtain the volume of the rotary steaming liquid in the process in real time.

Technical Field

The invention relates to the technical field of rotary evaporation, in particular to a system and a method for monitoring the volume of rotary evaporation liquid in real time by using a laser calibration method.

Background

The rotary evaporator is a common laboratory device, consists of a motor, a distillation flask, a heating pot, a condenser pipe and the like, is mainly used for continuously distilling a large amount of volatile solvents under the condition of reduced pressure, and is applied to the fields of chemistry, chemical engineering, biological medicine and the like.

At present, the rotary evaporation instrument mainly uses rotary evaporation liquid with a certain volume to be taken out of residual liquid for test analysis or further experiment after the rotary evaporation liquid is subjected to rotary evaporation for a certain time, and the residual rotary evaporation liquid in the rotary evaporation bottle can be known only by pouring out the liquid in the rotary evaporation bottle to measure the volume under the condition of suspending the rotary evaporation instrument in the rotary evaporation process, namely, the volume change condition of the rotary evaporation liquid in the rotary evaporation process can not be monitored in real time, so that the influence on the experiment is caused and inconvenient.

disclosure of Invention

The present invention provides a system and a method for monitoring volume of a spin-steaming liquid in real time by using a laser calibration method, which aims to solve the technical problem of the prior art.

In order to solve the technical problems, the invention adopts the technical scheme that:

A system for monitoring the volume of rotary evaporation liquid in real time by a laser calibration method comprises a rotary evaporator, wherein the rotary evaporator comprises a supporting seat and a rotary evaporation bottle arranged on one side of the supporting seat, the supporting seat is connected with a support, and the support is arranged on one side of the rotary evaporation bottle; a calibration plate is connected above the bracket through a hinge; a scale is arranged on one side of the calibration plate, and a sliding table is fixedly connected to the other side of the calibration plate; an adjusting screw rod penetrates through the sliding table, and a laser support is connected to the adjusting screw rod in a threaded manner; a laser and an indicator needle are connected below the laser bracket side by side; the pointer is arranged right above the scale.

further, a circle of indication strip is wound on the rotary steaming bottle and adopts a white thin paper strip with the thickness of 1 ~ 1.2 mm.

Furthermore, the calibration plate is made of a transparent plastic plate.

Further, the sliding table comprises a sliding table seat connected to the calibration plate, and the front end and the rear end of the sliding table seat are connected with sliding table blocks; the adjusting screw rod penetrates through the sliding table block at the front end of the sliding table seat.

a method for monitoring volume of rotary evaporation liquid in real time by using a laser calibration method comprises the following steps:

The method comprises the following steps: putting rotary steaming liquid with a known volume into a rotary steaming bottle, screwing an adjusting screw rod to move a laser at the bottom of a laser support, enabling laser spots emitted by the laser to coincide with the liquid level of the rotary steaming liquid and three points of the indicating strip to be coincident when the indicating strip passes through the edge of the liquid level by virtue of an indicating strip on the rotary steaming bottle, and recording the reading of an indicating needle on a scale;

Step two: putting different rotary evaporation liquids with known volumes into the rotary evaporation bottle, repeating the step one, and drawing the rotary evaporation liquids with different volumes and the reading on the scale on which the indicating needle is positioned into a standard curve;

Step three: and (4) adding the liquid to be steamed in a rotary steaming bottle, capturing the edge of the liquid in the rotary steaming bottle by moving a laser in the experimental process according to the standard curve obtained in the step two, recording the scale value of the scale pointed by the pointer when the laser spot emitted by the laser coincides with the edge of the rotary steaming liquid level and the indication strip, and inputting the scale value into the standard curve in the step two to obtain the volume of the rotary steaming liquid in the process in real time.

compared with the prior art, the system and the method for monitoring the volume of the rotary evaporation liquid in real time by using the laser calibration method have the advantages that the edge of the liquid level in the rotary evaporation bottle which is being subjected to rotary evaporation is tracked through the laser spot emitted by the laser, the reading of the scale value at the position of the scale pointed by the pointer is recorded at the same time, and the reading is compared with the previously drawn standard curve, so that the numerical value of the volume of the liquid in the rotary evaporation bottle can be obtained, the phenomenon that the rotary evaporation instrument is temporarily stopped to measure the volume in the bottle is avoided, and the efficiency of the experimental process is improved; and in the later stage, the photoelectric sensor can be combined with a control system for controlling the residual volume of the rotary evaporation liquid, so that the operation process and the remote control function of the rotary evaporation can be dynamically controlled.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a standard curve of the present invention with a calibration plate forming a 45 degree angle with the liquid level in the rotary retort;

FIG. 4 is a standard curve of the horizontal included angle between the calibration plate and the liquid level in the rotary steaming bottle according to the present invention;

The laser device comprises a laser device 1, a laser device 2, a laser device support 3, an indicating needle 4, an adjusting screw rod 5, a sliding table 6, a calibration plate 7, a support 8, a hinge 9, an indicating strip 10 and a rotary evaporator.

Detailed Description

the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

as shown in FIGS. 1 ~ 4, the system for monitoring the volume of the rotary evaporation liquid in real time by using a laser calibration method comprises a rotary evaporator 10, wherein the rotary evaporator 10 comprises a support seat and a rotary evaporation bottle arranged on one side of the support seat, the rotary evaporator 10 is used for continuously distilling volatile solvents under a reduced pressure condition, the support seat is connected with a support 7, the support 7 is arranged on one side of the rotary evaporation bottle, a calibration plate 6 is connected above the support 7 through a hinge 8, the calibration plate 6 is connected with the support 7 in an overturning manner through the hinge 6, a certain angle is formed between the calibration plate 6 and the horizontal plane of the rotary evaporation bottle after the calibration plate 6 is overturned, the calibration plate can be folded ~ one side of the support 7 through the hinge 6 after an experiment is finished, one side of the calibration plate 6 is provided with a scale, the other side of the calibration plate is fixedly connected with a sliding table 5, an adjusting screw rod 4 is arranged on the sliding table 5 in a penetrating manner, the sliding table base is connected ~ the front end and the rear end of the sliding table, and the adjusting.

The adjusting screw rod 4 is in threaded connection with a laser support 2; a laser 1 and an indicator needle 3 are connected below the laser bracket 2 in parallel; the pointer 3 is arranged right above the scale.

in order to facilitate observation and have an effective reference object during observation, the rotary steaming bottle is wound with a circle of indication strips 9, and the indication strips 9 adopt white thin paper strips with the thickness of 1-1.2 mm.

in this embodiment, the calibration plate 6 is made of a transparent plastic plate.

a method for monitoring volume of rotary evaporation liquid in real time by using a laser calibration method comprises the following steps:

The method comprises the following steps: putting 500ml of mixed solution of water and alcohol into a rotary evaporation bottle, screwing an adjusting screw rod 4 to enable a laser 1 at the bottom of a laser support 2 to move, enabling laser spots emitted by the laser 1 to coincide with the liquid level of the rotary evaporation liquid and three points of the indicating strip to be overlapped when the indicating strip passes through the edge of the liquid level by means of an indicating strip 9 on the rotary evaporation bottle, and recording the reading of an indicating needle 3 on a scale;

Step two: putting 400mL, 300mL, 200mL, 100mL and 50mL of mixed solution of water and alcohol into the rotary evaporation bottle in sequence, repeating the step one, and drawing the rotary evaporation liquid with different volumes and the reading on the scale mark of the indicator needle 3 to form a standard curve, as shown in FIGS. 3 and 4;

step three: and adding the liquid to be steamed in a rotary steaming bottle, capturing the edge of the liquid in the rotary steaming bottle by moving the laser 1 in the experimental process according to the standard curve obtained in the step two, recording the scale value of the scale pointed by the indicating needle 3 when the laser spot emitted by the laser 1 coincides with the edge of the rotary steaming liquid surface and the indicating strip 9, and inputting the scale value into the standard curve in the step two to obtain the volume of the rotary steaming liquid in the process in real time.

in the experimental process, if the rotating speed of the rotary steaming bottle is too high and is not easy to observe, the reading can be carried out after the speed is reduced, so that the measurement and the recording of the liquid volume are convenient.

the present invention is not limited to the embodiments described above, and those skilled in the art may make modifications or changes within the scope of the disclosure without departing from the spirit of the present invention, so that the scope of the present invention is defined by the appended claims.