CN110559676B - System and method for monitoring volume of rotary evaporation liquid in real time by laser calibration method - Google Patents
System and method for monitoring volume of rotary evaporation liquid in real time by laser calibration method Download PDFInfo
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- CN110559676B CN110559676B CN201910805752.8A CN201910805752A CN110559676B CN 110559676 B CN110559676 B CN 110559676B CN 201910805752 A CN201910805752 A CN 201910805752A CN 110559676 B CN110559676 B CN 110559676B
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- laser
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- liquid
- rotary steaming
- sliding table
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- 239000007788 liquid Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000012544 monitoring process Methods 0.000 title claims abstract description 14
- 238000002390 rotary evaporation Methods 0.000 title claims description 8
- 238000010025 steaming Methods 0.000 claims abstract description 67
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
-
- 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
- B01D3/085—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in rotating vessels; Atomisation on rotating discs using a rotary evaporator
-
- 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
- B01D3/10—Vacuum distillation
-
- 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
- B01D3/42—Regulation; Control
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Electronic Switches (AREA)
Abstract
A system and method for monitoring the volume of rotary liquid by laser calibration method in real time comprises 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; one side of the calibration plate is provided with a scale, and the other side of the calibration plate is fixedly connected with a sliding table; an adjusting screw rod is arranged on the sliding table in a penetrating way, and a laser bracket is connected to the adjusting screw rod in a threaded way; a laser and an indicator needle are connected below the laser bracket side by side; the indicating needle is arranged right above the scale; the rotary steaming bottle is wound with a circle of indication strips. Compared with the prior art, the system and the method for monitoring the volume of the rotary steaming liquid in real time by using the laser calibration method, disclosed by the invention, record data and draw a standard curve chart when a laser spot emitted by a laser coincides with the edge of the rotary steaming liquid level and an indicator strip, and the numerical value of the volume of the liquid in the rotary steaming bottle can be obtained by comparing the reading of the indicator needle with the standard curve drawn in the laboratory.
Description
Technical Field
The invention relates to the technical field of rotary steaming, in particular to a system and a method for monitoring the volume of rotary steaming liquid in real time by a laser calibration method.
Background
The rotary evaporator is common laboratory equipment, consists of a motor, a distillation flask, a heating pot, a condensation 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 industry, biological medicine and the like.
At present, a rotary steaming instrument mainly uses a certain volume of rotary steaming liquid to take out the residual liquid after a certain time of rotary steaming for test analysis or further experiments, and the measured volume of the liquid in the rotary steaming bottle can be poured out only under the condition that the rotary steaming instrument is suspended in the rotary steaming process, so that the quantity of the rotary steaming liquid remained in the rotary steaming bottle can be known, namely, the volume change condition of the rotary steaming liquid in the rotary steaming process can not be monitored in real time, and the experimental influence is caused and inconvenient.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a system and a method for monitoring the volume of rotary evaporation liquid in real time by a laser calibration method.
In order to solve the technical problems, the invention adopts the following technical scheme:
the system for monitoring the volume of the rotary steaming liquid in real time by using a laser calibration method comprises a rotary evaporator, wherein the rotary evaporator comprises a supporting seat and a rotary steaming bottle arranged on one side of the supporting seat, the supporting seat is connected with a bracket, and the bracket is arranged on one side of the rotary steaming bottle; a calibration plate is connected above the bracket through a hinge; one side of the calibration plate is provided with a scale, and the other side of the calibration plate is fixedly connected with a sliding table; an adjusting screw rod is arranged on the sliding table in a penetrating way, and a laser bracket is connected to the adjusting screw rod in a threaded way; a laser and an indicator needle are connected below the laser bracket side by side; the indicator needle is arranged right above the scale.
Further, a circle of indication strips are wound on the rotary steaming bottle, and the indication strips adopt white fine paper strips with the thickness of 1-1.2 mm.
Furthermore, the calibration plate is a transparent plastic plate.
Further, the sliding table comprises a sliding table seat connected to the calibration plate, and sliding table blocks are connected to the front end and the rear end of the sliding table seat; the adjusting screw rod penetrates through the sliding table block at the front end of the sliding table seat.
A method for monitoring the volume of rotary evaporation liquid in real time by a laser calibration method comprises the following steps:
step one: putting a known volume of rotary steaming liquid into a rotary steaming bottle, screwing an adjusting screw rod to enable a laser at the bottom of a laser bracket to move, enabling laser spots emitted by the laser to coincide with three points when the liquid level of the rotary steaming liquid and an indication strip pass through the edge of the liquid level by means of an indication strip on the rotary steaming bottle, and recording the reading of the indication needle on a scale;
step two: putting different known volumes of rotary steaming liquid into a rotary steaming bottle, and repeating the first step, and drawing the rotary steaming liquid with different volumes and readings on scale marks where the indicating needle is positioned into a standard curve;
step three: adding liquid to be steamed in the rotary steaming bottle, capturing the edge of the liquid in the rotary steaming bottle by moving the laser in the experimental process according to the standard curve obtained in the second step, recording the scale value of the scale pointed by the pointer at the moment when the laser spot emitted by the laser coincides with the edge of the rotary steaming liquid level and the indicator strip, and inputting the scale value into the standard curve in the second step 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 steaming liquid in real time by using the laser calibration method provided by the invention have the advantages that the edge of the liquid level in the rotary steaming bottle which is being subjected to rotary steaming is tracked through the laser light spot emitted by the laser, meanwhile, the reading of the scale value at the scale indicated by the indicating needle is recorded, the reading is compared with the previously drawn standard curve, the value of the volume of the liquid in the rotary steaming bottle can be obtained, the phenomenon that the rotary steaming instrument is suspended to measure the volume in the bottle is avoided, and the efficiency of the experimental process is improved; the photoelectric sensor can be combined with the control system in the later stage for controlling the residual volume of the rotary steaming liquid, and the operation process of dynamic control rotary steaming and the remote control function are realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a standard curve of the calibration plate of the present invention forming an angle of 45 degrees with the liquid level in the rotary evaporator;
FIG. 4 is a standard curve of the horizontal angle between the calibration plate and the liquid level in the rotary steaming bottle;
the device comprises a laser, a laser bracket, a pointer, a regulating screw rod, a sliding table, a calibration plate, a bracket, a hinge, a pointer bar, a rotary evaporator and a rotary evaporator, wherein the laser bracket, the pointer, the regulating screw rod, the adjusting screw rod, the bracket, the rotary evaporator, the pointer and the rotary evaporator are arranged in sequence, and the rotary evaporator is arranged in the sequence.
Detailed Description
The technical solutions 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 fig. 1 to 4, a system for monitoring the volume of a rotary evaporation liquid in real time by a laser calibration method comprises a rotary evaporator 10, wherein the rotary evaporator 10 comprises a supporting seat and a rotary evaporation bottle arranged on one side of the supporting seat, and the rotary evaporator 10 is used for continuously distilling a volatile solvent under a reduced pressure condition; the support seat is connected with a support 7, and the support 7 is arranged on one side of the rotary steaming bottle; a calibration plate 6 is connected above the bracket 7 through a hinge 8; the hinge 6 is arranged, so that the calibration plate 6 is connected with the bracket 7 in a turnover way, a certain angle is formed between the calibration plate 6 and the horizontal plane of the rotary steam bottle after the calibration plate 6 is turned over, and the calibration plate can be collected to one side of the bracket 7 through the hinge 6 when an experiment is finished; one side of the calibration plate 6 is provided with a scale, and the other side of the calibration plate is fixedly connected with a sliding table 5; an adjusting screw 4 is arranged on the sliding table 5 in a penetrating way; the sliding table 5 comprises a sliding table seat connected to the calibration plate 6, and the front end and the rear end of the sliding table seat are connected with sliding table blocks; the adjusting screw 4 is arranged on the sliding table block at the front end of the sliding table seat in a penetrating way.
The adjusting screw 4 is in threaded connection with the laser bracket 2; a laser 1 and an indicator needle 3 are connected below the laser bracket 2 side by side; the indicator needle 3 is arranged right above the scale.
For convenient observation and effective reference object during observation, a circle of indication strip 9 is wound on the rotary steaming bottle, and the indication strip 9 adopts 1-1.2 mm white fine paper strips.
In this embodiment, the calibration plate 6 is a transparent plastic plate.
A method for monitoring the volume of rotary evaporation liquid in real time by a laser calibration method comprises the following steps:
step one: putting 500ml of mixed solution of water and alcohol into a rotary steaming bottle, screwing an adjusting screw 4 to enable a laser 1 at the bottom of a laser bracket 2 to move, enabling laser spots emitted by the laser 1 to coincide with three points when the liquid level of rotary steaming liquid and an indicating strip pass through the edge of the liquid level by means of an indicating strip 9 on the rotary steaming bottle, and recording the reading of an indicating needle 3 on a scale;
step two: sequentially placing 400mL, 300mL, 200mL, 100mL and 50mL of mixed solution of water and alcohol into a rotary steaming bottle, and repeating the first step, and drawing the rotary steaming liquid with different volumes and the readings on the scale marks of the indicator needle 3 into standard curves, as shown in figures 3 and 4;
step three: adding 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 second step, recording the scale value of the scale pointed by the pointer 3 at the moment when the laser light spot emitted by the laser 1 coincides with the edge of the rotary steaming liquid level and the indicator strip 9, and inputting the scale value into the standard curve in the second step 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 to observe, the rotary steaming bottle can be read after the rotary steaming bottle is slowed down, and the measurement and the recording of the liquid volume are facilitated.
The invention is not limited to the embodiments described, but a person skilled in the art may make modifications or changes without departing from the spirit of the invention, i.e. the scope of the disclosure, and the scope of the invention is defined by the claims.
Claims (2)
1. The utility model provides a system for with laser calibration method real time monitoring rotary liquid volume, includes rotary evaporator, rotary evaporator includes the supporting seat and sets up in the rotary evaporation bottle of supporting seat one side, its characterized in that: the support seat is connected with a support, and the support is arranged at one side of the rotary steaming bottle; a calibration plate is connected above the bracket through a hinge; one side of the calibration plate is provided with a scale, and the other side of the calibration plate is fixedly connected with a sliding table; an adjusting screw rod is arranged on the sliding table in a penetrating way, and a laser bracket is connected to the adjusting screw rod in a threaded way; a laser and an indicator needle are connected below the laser bracket side by side; the indicating needle is arranged right above the scale;
a circle of indication strips are wound on the rotary steaming bottle, and the indication strips adopt 1-1.2 mm of white fine paper strips;
the calibration plate is a transparent plastic plate;
the method for monitoring the volume of the rotary steaming liquid in real time by a laser calibration method comprises the following steps of:
step one: putting a known volume of rotary steaming liquid into a rotary steaming bottle, screwing an adjusting screw rod to enable a laser at the bottom of a laser bracket to move, enabling laser spots emitted by the laser to coincide with three points when the liquid level of the rotary steaming liquid and an indication strip pass through the edge of the liquid level by means of an indication strip on the rotary steaming bottle, and recording the reading of the indication needle on a scale;
step two: putting different known volumes of rotary steaming liquid into a rotary steaming bottle, and repeating the first step, and drawing the rotary steaming liquid with different volumes and readings on scale marks where the indicating needle is positioned into a standard curve;
step three: adding liquid to be steamed in the rotary steaming bottle, capturing the edge of the liquid in the rotary steaming bottle by moving the laser in the experimental process according to the standard curve obtained in the second step, recording the scale value of the scale pointed by the pointer at the moment when the laser spot emitted by the laser coincides with the edge of the rotary steaming liquid level and the indicator strip, and inputting the scale value into the standard curve in the second step to obtain the volume of the rotary steaming liquid in the process in real time.
2. The system for monitoring the volume of rotary fluid by a laser calibration method in real time according to claim 1, wherein: the sliding table comprises a sliding table seat connected to the calibration plate, and sliding table blocks are connected to the front end and the rear end of the sliding table seat; the adjusting screw rod penetrates through the sliding table block at the front end of the sliding table seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910805752.8A CN110559676B (en) | 2019-08-29 | 2019-08-29 | System and method for monitoring volume of rotary evaporation liquid in real time by laser calibration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910805752.8A CN110559676B (en) | 2019-08-29 | 2019-08-29 | System and method for monitoring volume of rotary evaporation liquid in real time by laser calibration method |
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| CN110559676A CN110559676A (en) | 2019-12-13 |
| CN110559676B true CN110559676B (en) | 2024-04-09 |
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| CN201910805752.8A Active CN110559676B (en) | 2019-08-29 | 2019-08-29 | System and method for monitoring volume of rotary evaporation liquid in real time by laser calibration method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021092717A1 (en) * | 2019-11-11 | 2021-05-20 | 南通东概念新材料有限公司 | System and method for monitoring volume of rotary evaporation liquid in real time using laser calibration method |
| CN112774240B (en) * | 2021-01-19 | 2023-05-05 | 广州泽力医药科技有限公司 | Circulated extraction equipment is used to bioengineering |
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| WO2019144730A1 (en) * | 2018-01-23 | 2019-08-01 | 北京师范大学 | Rotary evaporator capable of accurately quantifying concentrated liquid and/or distillate |
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2019
- 2019-08-29 CN CN201910805752.8A patent/CN110559676B/en active Active
Patent Citations (9)
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|---|---|---|---|---|
| DE19909228A1 (en) * | 1999-03-03 | 2000-09-07 | Lc Tech Gmbh | Process for boiling liquid samples down to a residual volume comprises feeding the results from a sensor for determining the position of the liquid level in a vaporizing vessel to a controller |
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| CN110559676A (en) | 2019-12-13 |
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