CN219209017U

CN219209017U - Rotary evaporator

Info

Publication number: CN219209017U
Application number: CN202223515280.9U
Authority: CN
Inventors: 周延; 马润娇; 黄迪; 赵晓微
Original assignee: Xinjiang Uygur Autonomous Region Product Quality Supervision and Inspection Research Institute
Current assignee: Xinjiang Uygur Autonomous Region Product Quality Supervision and Inspection Research Institute
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-20
Anticipated expiration: 2032-12-28

Abstract

The utility model belongs to the technical field of evaporators, and discloses a scheme for solving the two problems of inconvenience in overall adjustment and poor cooling effect in the prior art. In the cooling process, the cooling is performed by adopting a flow mode from top to bottom arranged on the outer wall of the condensing pipe, so that the cooling contact area is greatly increased, the U-shaped cooling pipe arranged on the inner wall of the condensing pipe can further cool, and the liquid dropped after condensation can be collected and dropped from the bottommost part of the U-shaped cooling pipe, so that the cooling efficiency is greatly improved.

Description

Rotary evaporator

Technical Field

The utility model relates to the technical field of evaporators, in particular to a rotary evaporator.

Background

The rotary evaporator is also called rotary evaporator, is a common laboratory equipment, and is composed of a motor, a distillation flask, a heating pot, a condensing tube and the like, is mainly used for continuously distilling volatile solvents under the condition of reduced pressure, and is applied to the fields of chemistry, chemical engineering, biological medicine and the like. The distillation flask was an eggplant or round bottom flask with a standard ground port, connected to a pressure reducing pump via a high reflux serpentine condenser, the other opening of which was connected to a receiving flask with a ground port for receiving the vaporized organic solvent. In the process of food detection, a rotary evaporator is often used for detecting food, but the existing evaporator has some defects in the use process:

1. the cooling effect is poor. In the process of evaporation and condensation of the existing evaporator, the contact area of the evaporated vapor with the spiral condensation pipe is small, so that the vapor cannot be cooled in time when a large amount of vapor contacts, and the condensation efficiency is poor;

2. the whole adjustment is inconvenient. In the existing evaporator adjusting process, the inclination angle and the rotation speed are mostly manually adjusted for the height, so that more time is consumed in the adjusting process.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the rotary evaporator, which overcomes the defects of the prior art and effectively solves the two problems of inconvenient integral adjustment and poor cooling effect of the prior art through the matching use of the rotary component and the cooling component.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a rotary evaporator, includes the counter weight bottom plate, the fixed inner wall in counter weight bottom plate top slides and peg graft there is electric slide rail of electric slider, and electric slider outer wall rotates the grafting and have the regulation pivot, the regulation pivot is connected with protective housing, and protective housing inside is provided with rotating assembly, rotating assembly is provided with the condenser pipe, and the condenser pipe outer wall is equipped with cooling assembly, counter weight bottom plate top one end is fixed with the heating water bath.

Through foretell scheme, connect the device outer wall earlier, and switch on external power source, and with rotatory bottle spiro union in rotatory sheathed tube inside, and pour into liquid into the inside of rotatory bottle through the charging valve pipe, start servo motor, utilize servo motor to drive the worm rotation, thereby drive worm wheel rotation, and the worm wheel rotates and can drive rotatory bottle and rotate, utilize the heating water bath to heat this moment, and utilize electric slide block to drive rotatory bottle and descend, descend rotatory bottle to the inside back of heating water bath, constantly heat and rotate and realize heating, when cooling, let in cold water to inlet tube inside, thereby realize cylindricality cooling shell top-down's realization cooling, and U type cooling tube is pegged graft inside the condenser pipe, its U type cooling tube bottommost can with hot steam contact, its liquid can liquefy, thereby the condensation, liquid can be from U type cooling tube bottommost assemble the drip, realize collecting.

Preferably, the outer wall of the electric sliding block is provided with a rotating groove, an adjusting rotating shaft is inserted into the inner wall of the rotating groove, and the adjusting rotating shaft and the rotating groove form interference fit.

Through foretell scheme, interference fit's rotatory fixed structure can make things convenient for the regulation of evaporimeter greatly.

Preferably, the rotating assembly comprises a servo motor fixed inside the protective shell, an output shaft of the servo motor is connected with a worm, and the worm is meshed with a worm wheel.

Through foretell scheme, adopt worm drive worm wheel, can effectively adjust the rotational speed of rotatory bottle, and worm wheel have the auto-lock structure, can prevent to reverse.

Preferably, a rotary sleeve is fixed at the axis of the worm wheel, one end of the rotary sleeve is connected with a rotary bottle in a threaded manner, and the other end of the rotary sleeve is connected with a communicating pipe.

Through foretell scheme, the rotatory bottle of spiro union formula design can make things convenient for the installation of later stage greatly.

Preferably, the inner wall of the condensing tube is inserted with a charging valve tube in a penetrating way, and the bottom of the condensing tube is connected with a collecting bottle.

Through foretell scheme, the charging valve pipe that the slope runs through is pegged graft to inside the rotatory bottle, can conveniently carry out the feeding when using greatly.

Preferably, the cooling component comprises a U-shaped cooling pipe arranged at the top of the condensing pipe, and a thread sealing piece is arranged on the outer wall of the bottom of the condensing pipe.

By the scheme, the countercurrent cold water is arranged on the outer wall of the condensing tube, so that rapid cooling treatment can be realized.

Preferably, the outer wall of the threaded sealing piece is in threaded connection with a cylindrical cooling shell, the top of the cylindrical cooling shell is inserted with a water inlet pipe, the bottom of the water inlet pipe is communicated with one end of a U-shaped cooling pipe, and the inner wall of one side of the cylindrical cooling shell is communicated with a water drain pipe.

Through foretell scheme, U type cooling tube is pegged graft at the inner wall of condenser pipe, not only can cooperate outside cold water to cool off, and the liquid drip collection after the condensation can be accelerated to the design of U type cooling tube moreover.

The beneficial effects of the utility model are as follows:

1. according to the rotary evaporator, in the cooling process, the outer wall of the condensing tube is cooled in a flow mode from top to bottom, so that the cooling contact area is greatly increased, the U-shaped cooling tube arranged on the inner wall of the condensing tube can further cool, and liquid dropped after condensation can be collected and dropped from the bottommost part of the U-shaped cooling tube, so that the cooling efficiency can be greatly improved;

2. the rotary evaporator of this design, the electronic slide rail of in-process that uses and the cooperation of electronic slider each other, the height that can be quick is adjusted to the rotatory bottle of cooperation worm and worm wheel's meshing cooperation can effectually drive rotate, thereby accelerate evaporation efficiency.

Drawings

FIG. 1 is a front view of the overall structure of a rotary evaporator according to the present utility model;

FIG. 2 is a side view of a split structure of a rotary evaporator according to the present utility model;

FIG. 3 is a schematic view of a rotary evaporator according to a first embodiment of the present utility model;

fig. 4 is a schematic diagram of an internal structure of a rotary evaporator according to the present utility model.

In the figure: 1 counterweight bottom plate, 2 electronic slide rail, 3 electronic slider, 4 regulation pivot, 5 protective housing, 6 servo motor, 7 worm, 8 worm wheel, 9 rotatory sleeve pipe, 10 rotatory bottle, 11 communicating pipe, 12 condenser pipe, 13 charging valve pipe, 14 collecting bottle, 15U formula cooling tube, 16 screw thread sealing spare, 17 cylindricality cooling shell, 18 inlet tube, 19 drain pipe, 20 heating water bath.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 4, a rotary evaporator comprises a counterweight bottom plate 1, wherein an electric sliding rail 2 of an electric sliding block 3 is fixedly inserted into the inner wall of the top of the counterweight bottom plate 1 in a sliding manner, an adjusting rotating shaft 4 is inserted into the outer wall of the electric sliding block 3 in a rotating manner, a rotating groove is formed in the outer wall of the electric sliding block 3, and an adjusting rotating shaft 4 is inserted into the inner wall of the rotating groove in a sliding manner;

in the cooling process, a top-down flowing mode is adopted for cooling on the outer wall of the condensation pipe 12, so that the cooling contact area is greatly increased, the U-shaped cooling pipe 15 arranged on the inner wall of the condensation pipe 12 can further cool, and the liquid dropped after condensation can be collected and dropped from the bottommost part of the U-shaped cooling pipe 15, so that the cooling efficiency is greatly improved;

the adjusting rotating shaft 4 and the rotating groove form interference fit, the adjusting rotating shaft 4 is connected with the protective shell 5, a rotating assembly is arranged in the protective shell 5 and comprises a servo motor 6 fixed in the protective shell 5, and an output shaft of the servo motor 6 is connected with a worm 7;

the axle center department of worm wheel 8 is fixed with rotatory sleeve pipe 9, and the one end spiro union of rotatory sleeve pipe 9 has rotatory bottle 10, and the other end of rotatory sleeve pipe 9 is connected with communicating pipe 11, and worm 7 meshing transmission has worm wheel 8, and the rotating assembly is provided with condenser pipe 12, and the condenser pipe 12 outer wall is equipped with the cooling subassembly, and condenser pipe 12 inner wall runs through and peg graft has charging valve pipe 13.

Referring to fig. 1, a collecting bottle 14 is connected to the bottom of a condensation pipe 12, a cooling component comprises a U-shaped cooling pipe 15 arranged at the top of the condensation pipe 12, a threaded sealing piece 16 is arranged on the outer wall of the bottom of the condensation pipe 12, and a cylindrical cooling shell 17 is screwed to the outer wall of the threaded sealing piece 16;

in the using process, the electric slide rail 2 and the electric slide block 3 are matched with each other, so that the height of the rotary bottle 10 can be quickly adjusted, and the rotary bottle 10 can be effectively driven to rotate by being matched with the engagement of the worm 7 and the worm wheel 8, so that the evaporation efficiency is accelerated;

the top of the cylindrical cooling shell 17 is inserted with a water inlet pipe 18, the bottom of the water inlet pipe 18 is communicated with one end of the U-shaped cooling pipe 15, the inner wall of one side of the cylindrical cooling shell 17 is communicated with a water outlet pipe 19, and one end of the top of the counterweight bottom plate 1 is fixed with a heating water bath pot 20.

The working principle of the rotary evaporator is as follows:

when the rotary evaporator is used, the device is connected with the outer wall, an external power supply is connected, the rotary bottle 10 is connected with the inside of the rotary sleeve 9 in a screwed mode, liquid is injected into the rotary bottle 10 through the charging valve pipe 13, the servo motor 6 is started, the worm 7 is driven to rotate by the servo motor 6, the worm wheel 8 is driven to rotate, the rotary bottle 10 is driven to rotate by the rotation of the worm wheel 8, the water bath 20 is heated, the rotary bottle 10 is driven to descend by the electric sliding block 3, after the rotary bottle 10 descends to the inside of the water bath 20, the rotary bottle is continuously heated and rotated to achieve heating, cold water is introduced into the water inlet pipe 18 during cooling, therefore the cylindrical cooling shell 17 is cooled from top to bottom, the U-shaped cooling pipe 15 is inserted into the condenser pipe 12, the bottommost part of the U-shaped cooling pipe 15 is contacted with hot steam, the liquid is liquefied, and condensed, the liquid is converged and dropped from the bottommost part of the U-shaped cooling pipe 15, and collection is achieved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a rotary evaporator, includes counter weight bottom plate (1), its characterized in that, counter weight bottom plate (1) top fixed inner wall slip grafting has electronic slide rail (2) of electronic slider (3), and electronic slider (3) outer wall rotates the grafting has regulation pivot (4), it is connected with protective housing (5) to adjust pivot (4), and protective housing (5) inside is provided with rotating assembly, rotating assembly is provided with condenser pipe (12), and condenser pipe (12) outer wall is equipped with cooling subassembly, counter weight bottom plate (1) top one end is fixed with heating water bath (20).

2. A rotary evaporator according to claim 1, wherein the outer wall of the electric slider (3) is provided with a rotating groove, and an adjusting rotating shaft (4) is inserted into the inner wall of the rotating groove, and the adjusting rotating shaft (4) and the rotating groove form interference fit.

3. A rotary evaporator according to claim 1, characterized in that the rotating assembly comprises a servomotor (6) fixed inside the protective housing (5), and that the output shaft of the servomotor (6) is connected with a worm (7), said worm (7) being in meshing transmission with a worm wheel (8).

4. A rotary evaporator according to claim 3, characterized in that a rotary sleeve (9) is fixed at the axis of the worm wheel (8), one end of the rotary sleeve (9) is screwed with a rotary bottle (10), and the other end of the rotary sleeve (9) is connected with a communicating pipe (11).

5. A rotary evaporator according to claim 1, wherein the inner wall of the condensation tube (12) is inserted with a feed valve tube (13), and the bottom of the condensation tube (12) is connected with a collecting bottle (14).

6. A rotary evaporator according to claim 1, characterized in that the cooling assembly comprises a U-shaped cooling tube (15) arranged at the top of the condensation tube (12), and that the outer wall of the bottom of the condensation tube (12) is provided with a screw-thread seal (16).

7. A rotary evaporator according to claim 6, wherein the outer wall of the screw sealing member (16) is screwed with a cylindrical cooling shell (17), the top of the cylindrical cooling shell (17) is inserted with a water inlet pipe (18), the bottom of the water inlet pipe (18) is mutually communicated with one end of the U-shaped cooling pipe (15), and the inner wall of one side of the cylindrical cooling shell (17) is communicated with a water outlet pipe (19).