A side plate shower type rotary evaporator

Abstract

This utility model relates to the field of rotary evaporator technology, specifically to a side-plate spray rotary evaporator. The side-plate spray rotary evaporator includes a rotary evaporator and multiple side plates. Each side plate includes an upper inclined plate and a lower spiral plate connected to the upper inclined plate. One end of each lower spiral plate is connected to the center point of the bottom of the rotary evaporator at a predetermined angle. One end of each upper inclined plate extends along the evaporator wall towards the evaporator opening, forming a predetermined angle with the evaporator wall. Using this side-plate spray rotary evaporator, the predetermined angle between the upper inclined plates and the evaporator wall reduces liquid slippage during rotation, enhances mixing, and prevents liquid accumulation in a certain area, thereby improving overall rotary evaporation efficiency. Furthermore, the lower spiral plate further extends the liquid flow path, increases contact time with the hot wall, promotes evaporation, and forms a thinner liquid film.

Description

Technical Field

[0001] This utility model relates to the field of rotary evaporator technology, specifically to a side-plate spray rotary evaporator. Background Technology

[0002] Rotary evaporation is mainly used for the rapid evaporation of solvents under reduced pressure. A round-bottom flask is rotated in a water bath to increase the surface area, while temperature and vacuum are controlled to lower the solvent's boiling point and accelerate evaporation. However, in actual rotary evaporation processes, insufficient temperature in some areas can slow down the evaporation rate, and excessively high local temperatures in other areas can cause the solution to boil violently and overflow from the flask.

[0003] Therefore, there is an urgent need for a side-plate rotary evaporator flask, which increases the flow of liquid in the flask by setting multiple side plates inside the flask, while extending the path length, increasing the heating time and area, thereby improving evaporation efficiency, preventing solution boiling, and improving the efficiency and safety of laboratory work. Utility Model Content

[0004] The purpose of this invention is to solve the problems of insufficient temperature in some areas during the rotary evaporation process of existing conventional rotary evaporators, which leads to a slow evaporation rate, and excessive local temperature in some areas, which causes the solution to boil over and overflow from the bottle mouth. This invention provides a side-plate spray rotary evaporator.

[0005] The technical solution of this utility model is as follows:

[0006] A side-plate spray rotary evaporator includes a rotary evaporator and multiple side plates;

[0007] The side plate includes an upper inclined plate and a lower spiral plate connected to the upper inclined plate. One end of the lower spiral plate of the multiple side plates is connected to the center point of the bottom of the rotary evaporator at a predetermined angle. One end of the upper inclined plate extends along the bottle wall of the rotary evaporator towards the bottle mouth and forms a predetermined angle with the bottle wall of the rotary evaporator.

[0008] Preferably, the vertical extension height of the upper inclined plate does not exceed half the height of the side wall of the rotary evaporator.

[0009] Preferably, the top width of the upper inclined plate is equal to the radius R of the rotary evaporator flask.

[0010] Preferably, the length of the upper inclined plate accounts for a certain percentage of the total length of the side plates.

[0011] Preferably, the lower spiral plate comprises one or more spiral segments.

[0012] Preferably, the preset angle is 90°-150°.

[0013] Preferably, the set angle is 30°-90°.

[0014] Preferably, the angles formed between the upper inclined plates of the plurality of side plates and the wall of the rotary evaporator are the same or different.

[0015] Preferably, the side panel is made of glass.

[0016] Preferably, the glass thickness of the side panel is 1mm-3mm.

[0017] According to the above technical solution, based on this side-plate spray-type rotary evaporator, the angle formed between the upper inclined plates of multiple side plates and the flask wall increases the heating area of ​​the liquid, directs the liquid flow, and enhances the mixing effect. Simultaneously, when the rotary evaporator rotates, the upper inclined plates store a portion of the liquid in the inclined grooves formed between them and the flask wall. When the liquid-laden upper inclined plates rotate to a certain height, the liquid flows downwards along the upper inclined plates, being divided into multiple parts, preventing the formation of large droplets, thereby accelerating the evaporation rate and preventing some areas from slowing down due to insufficient temperature. Furthermore, the guiding effect of the lower spiral plate reduces eddy currents, lowers the risk of bumping, and the groove structure of the lower spiral plate extends the liquid flow path, increases the contact time with the hot wall, gradually thins the liquid film, and also has a certain stirring effect, further improving evaporation efficiency. In addition, the overall structure of the side plates can limit the splashing range of liquid bubbles formed by evaporation under low-pressure environments, maintaining stable flow. Attached Figure Description

[0018] Figure 1 This is a top view of the structure of a side-plate spray rotary evaporator;

[0019] Figure 2 This is a schematic diagram of the side plate structure of a side-plate rotary evaporator.

[0020] Figure 3 This is a schematic diagram of the installation of a side-plate spray rotary evaporator during rotary evaporation.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Rotary flask; 2. Side plate; 21. Upper inclined plate; 22. Lower spiral plate. Detailed Implementation

[0023] The following provides a detailed description of the specific embodiments of this utility model. It should be understood that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of this utility model.

[0024] In the description of this application, "a plurality of" means two or more. The term "comprising" and any variations thereof mean a non-exclusive inclusion, the possible presence or addition of one or more other features, units, components and / or combinations thereof.

[0025] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] This utility model provides a side-plate spray-type rotary evaporator, such as... Figure 1 and Figure 2 As shown, the side-plate spray rotary evaporator includes a rotary evaporator 1 and multiple side plates 2;

[0027] The side plate 2 includes an upper inclined plate 21 and a lower spiral plate 22 connected to the upper inclined plate 21. One end of the lower spiral plates 22 of the multiple side plates 2 is connected to the center point of the bottom of the rotary evaporator 1 at a predetermined angle. One end of the upper inclined plate 21 extends along the bottle wall of the rotary evaporator 1 towards the bottle mouth and forms a predetermined angle with the bottle wall of the rotary evaporator 1.

[0028] According to the above technical solution, based on this side-plate spray-type rotary evaporator, the angle formed between the upper inclined plates of multiple side plates and the flask wall increases the heating area of ​​the liquid, directs the liquid flow, and enhances the mixing effect. Simultaneously, when the rotary evaporator rotates, the upper inclined plates store a portion of the liquid in the inclined grooves formed between them and the flask wall. When the liquid-laden upper inclined plates rotate to a certain height, the liquid flows downwards along the upper inclined plates, being divided into multiple parts, preventing the formation of large droplets, thereby accelerating the evaporation rate and preventing some areas from slowing down due to insufficient temperature. Furthermore, the guiding effect of the lower spiral plate reduces eddy currents, lowers the risk of bumping, and the groove structure of the lower spiral plate extends the liquid flow path, increases the contact time with the hot wall, gradually thins the liquid film, and also has a certain stirring effect, further improving evaporation efficiency. In addition, the overall structure of the side plates can limit the splashing range of liquid bubbles formed by evaporation under low-pressure environments, maintaining stable flow.

[0029] In the side-plate spray-type rotary evaporator flask described in this utility model, preferably, as follows: Figure 3As shown, the vertical extension height of the upper inclined plate 21 does not exceed half the height of the side wall of the rotary evaporator 1, so that when the rotary evaporator 1 is tilted at 45° for rotary evaporation, the side plate 2 can act on the liquid to the greatest extent.

[0030] In the side-plate spray-type rotary evaporator flask described in this utility model, preferably, as follows: Figure 3 As shown, the top width of the upper inclined plate 21 is equal to the radius R of the rotary evaporator 1. Specifically, for example, the rotary evaporator 1 with a round bottom can be considered as a circle with radius R, inside which an ellipse is tangent, wherein the semi-major axis of the ellipse is R and the semi-minor axis is... Based on the change in the semi-minor axis of the internal ellipse, the top width of the upper inclined plate 21 is...

[0031] In another preferred embodiment, the length of the upper inclined plate 21 accounts for a portion of the total length of the side plate 2. Most preferably, the length of the upper inclined plate 21 accounts for a certain percentage of the total length of the side plate 2.

[0032] In this embodiment of the invention, by optimizing the ratio of the top width of the upper inclined plate 21 to the radius R of the rotary evaporator 1, and by optimizing the size ratio of the upper inclined plate 21 and the lower spiral plate 22, the evaporation efficiency of the solution can be further improved and the solution can be prevented from boiling violently in practical applications.

[0033] In the side-plate spray-type rotary evaporator of this invention, preferably, the lower spiral plate 22 includes one or more spiral segments, thereby further and effectively improving the evaporation efficiency of the solution and reducing the generation of eddies that could lead to bumping. Specifically, the number of segments of the lower spiral plate 22 can be set according to actual needs.

[0034] In the side-plate spray-type rotary evaporator flask of this utility model, preferably, the preset angle is 90°-150°, more preferably 100°-130°, and most preferably 120°, so that the three side plates 2 are evenly distributed along the interior of the rotary evaporator flask 1. This not only effectively improves the evaporation efficiency of the solution and prevents the solution from boiling over, but also helps to balance the liquid distribution during the rotation of the rotary evaporator flask 1, preventing vibration or efficiency reduction caused by eccentricity.

[0035] In the side-plate liquid-spraying rotary evaporator flask described in this utility model, preferably, the set angle is 30°-90°, more preferably 50°-70°, and most preferably 60°. Thus, when the rotary evaporator flask is rotated at a 45° angle, the upper inclined plate can better store a portion of the liquid in the inclined groove formed between it and the flask wall. When the liquid-laden upper inclined plate rotates to a certain height, the liquid will flow downward along the upper inclined plate and be divided into multiple parts, avoiding the formation of large droplets, thereby accelerating the evaporation rate and preventing some areas from slowing down the evaporation rate due to insufficient temperature.

[0036] In another preferred embodiment, the angles formed between the upper inclined plates 21 of the plurality of side plates 2 and the wall of the rotary evaporator 1 are the same or different. Specifically, this can be set according to actual needs to maximize the evaporation rate of the solution.

[0037] In the side-plate spray-type rotary evaporator flask of this utility model, the side plate 2 can be made of various materials according to actual application needs. Specifically, for example, the side plate 2 can be made of glass. Preferably, the glass thickness of the side plate 2 is 1mm-3mm, and most preferably 1.5mm.

[0038] The present invention will be described in detail below through embodiments, but the scope of protection of the present invention is not limited thereto.

[0039] Example 1

[0040] Adopting such Figure 1-3 The illustrated side-plate liquid-spraying rotary evaporator flask specifically comprises a rotary evaporator 1 and three side plates 2;

[0041] The side plate 2 includes an upper inclined plate 21 and a lower spiral plate 22 connected to the upper inclined plate 21. One end of the lower spiral plate 22 of the three side plates 2 is connected to the center point of the bottom of the rotary evaporator 1 at a 120° interval. One end of the upper inclined plate 21 extends along the bottle wall of the rotary evaporator 1 towards the bottle mouth and forms a 60° angle with the bottle wall of the rotary evaporator 1.

[0042] Specifically, the vertical extension height of the upper inclined plate 21 is half the height of the side wall of the rotary evaporator 1; the lower spiral plate 22 includes a spiral section; the angle between the upper inclined plates 21 of the three side plates 2 and the wall of the rotary evaporator 1 is the same; the side plates 2 are made of glass; the glass thickness of the side plates 2 is 1.5 mm.

[0043] In practical applications, the rotary evaporation process is carried out in accordance with the rotary evaporation process of a regular rotary evaporator, except that the side-plate liquid-spraying rotary evaporator is used instead of the conventional rotary evaporator.

[0044] Testing revealed that the side-plate spray-type rotary evaporator of this invention, compared to ordinary rotary evaporators in the prior art, increases the liquid's heating area and directs its flow by forming a set angle between the upper inclined plates of multiple side plates and the evaporator wall, thus enhancing the mixing effect. Simultaneously, as the evaporator rotates, the upper inclined plates store a portion of the liquid in the inclined grooves formed between them and the evaporator wall. When the liquid-laden upper inclined plates rotate to a certain height, the liquid flows downwards along the plates, being divided into multiple parts, preventing the formation of large droplets and accelerating the evaporation rate. This also prevents some areas from experiencing slow evaporation due to insufficient temperature. Furthermore, the guiding effect of the lower spiral plate reduces eddy currents, lowering the risk of bumping. The grooved structure of the lower spiral plate extends the liquid's flow path, increasing the contact time with the hot wall, causing the liquid film to gradually thin, and also provides a certain stirring effect, further improving evaporation efficiency. In addition, the overall structure of the side plates limits the splashing range of liquid bubbles formed during evaporation under low-pressure environments, maintaining stable flow.

[0045] Example 2

[0046] Referring to Embodiment 1, the difference is that the top width of the upper inclined plate 21 is equal to the radius R of the rotary evaporator 1. The length of the upper inclined plate 21 accounts for a portion of the total length of the side plate 2.

[0047] Testing revealed that, compared to the solution in Example 1, the side-plate spray rotary evaporator described in this invention can further improve the evaporation efficiency of the solution and prevent violent boiling.

[0048] The side-plate spray-type rotary evaporator provided by this utility model increases the liquid heating area and directs the liquid flow, enhancing the mixing effect, by forming a set angle between the upper inclined plates of multiple side plates and the evaporator wall. Simultaneously, when the evaporator rotates, the upper inclined plates store a portion of the liquid in the inclined grooves formed between them and the evaporator wall. When the liquid-laden upper inclined plates rotate to a certain height, the liquid flows downwards along the upper inclined plates, being divided into multiple parts, preventing the formation of large droplets, thus accelerating the evaporation rate and preventing some areas from slowing down due to insufficient temperature. Furthermore, the guiding effect of the lower spiral plate reduces eddy currents, lowering the risk of bumping. The groove structure of the lower spiral plate extends the liquid flow path, increases the contact time with the hot wall, gradually thinning the liquid film, and also has a certain stirring effect, further improving evaporation efficiency. In addition, based on the overall structure of the side plates, the splashing range of liquid bubbles formed by evaporation can be limited under low-pressure environments, maintaining stable flow.

[0049] The preferred embodiments of this utility model have been described in detail above; however, this utility model is not limited thereto. Within the scope of the technical concept of this utility model, various simple modifications can be made to the technical solution of this utility model. To avoid unnecessary repetition, this utility model will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed by this utility model and all fall within the protection scope of this utility model.

Claims

1. A side-plate spray-type rotary evaporator, characterized in that, The side-plate spray flask includes a rotary flask (1) and multiple side plates (2); The side plate (2) includes an upper inclined plate (21) and a lower spiral plate (22) connected to the upper inclined plate (21). One end of the lower spiral plate (22) of the multiple side plates (2) is connected to the center point of the bottom of the rotary evaporator (1) at a predetermined angle. One end of the upper inclined plate (21) extends along the bottle wall of the rotary evaporator (1) towards the bottle mouth and forms a predetermined angle with the bottle wall of the rotary evaporator (1).

2. The side-plate spray rotary evaporator flask according to claim 1, characterized in that, The vertical extension height of the upper inclined plate (21) shall not exceed half the height of the side wall of the rotary evaporator (1).

3. The side-plate spray rotary evaporator flask according to claim 1, characterized in that, The top width of the upper inclined plate (21) is equal to the radius R of the rotary evaporator (1).

4. The side-plate spray rotary evaporator flask according to any one of claims 1-3, characterized in that, The length of the upper inclined plate (21) accounts for a portion of the total length of the side plate (2).

5. The side-plate spray rotary evaporator flask according to claim 1, characterized in that, The lower spiral plate (22) includes one or more spiral sections.

6. The side-plate spray rotary evaporator flask according to claim 1, characterized in that, The preset angle is 90°-150°.

7. The side-plate spray rotary evaporator flask according to claim 1, characterized in that, The set angle is 30°-90°.

8. The side-plate spray rotary evaporator flask according to claim 1 or 7, characterized in that, The angles formed between the upper inclined plates (21) of the multiple side plates (2) and the wall of the rotary evaporator (1) are the same or different.

9. The side-plate spray rotary evaporator flask according to claim 1, characterized in that, The side panel (2) is made of glass.

10. The side-plate spray rotary evaporator flask according to claim 9, characterized in that, The glass thickness of the side plate (2) is 1mm-3mm.

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