CN213724870U

CN213724870U - Novel rotary evaporator

Info

Publication number: CN213724870U
Application number: CN202022211612.9U
Authority: CN
Inventors: 帅小华; 胡国荣; 刘安东; 茹俊
Original assignee: Shanghai Haoyi Biotechnology Co ltd
Current assignee: Shanghai Haoyi Biotechnology Co ltd
Priority date: 2020-10-04
Filing date: 2020-10-04
Publication date: 2021-07-20
Anticipated expiration: 2030-10-04

Abstract

The utility model discloses a novel rotary evaporator belongs to fine chemical industry technical field. A novel rotary evaporator comprises a workbench, wherein the top of the workbench is fixedly connected with a vertical plate and a heating pot, a heater is arranged in the heating pot, two groups of long plates are fixedly connected in the heating pot, sliding grooves are formed in the two groups of long plates, floating plates are connected in the two sliding grooves, a support frame is fixedly connected to the top of the workbench, a water tank is arranged at the top of the support frame, the side wall of the bottom of the water tank is connected with a communicating pipe, one end, away from the water tank, of the communicating pipe is communicated with one of the sliding grooves in the long plates, a check valve is arranged on the communicating pipe, a glass tube and a condenser tube are respectively connected to the vertical plate, a buckle is arranged on the vertical plate, and the glass tube is rotatably connected to the buckle; the utility model discloses simple structure, convenient to use can add water automatically, guarantees that the distillation can go on always, improves distillation efficiency.

Description

Novel rotary evaporator

Technical Field

The utility model relates to a fine chemical industry technical field especially relates to a novel rotary evaporator.

Background

The rotary evaporator is also called as a rotary evaporator, is common equipment in a laboratory, consists of a motor, a distillation flask, a heating pot, a condensing tube and the like, is mainly used for continuously distilling volatile solvents under a reduced pressure condition, is applied to the fields of fine chemical engineering, biological medicine and the like, and is characterized in that through electronic control, the flask is rotated at a constant speed at the most appropriate speed to increase the evaporation area, the evaporation flask is in a negative pressure state through a vacuum pump, the evaporation flask is rotated and simultaneously placed in a water bath pot for constant temperature heating, the solution in the flask is heated, diffused and evaporated in the rotary flask under the negative pressure, and a rotary evaporator system can be sealed and decompressed to 400-600 mm Hg; heating the solvent in the distillation flask by a heating bath, wherein the heating temperature is usually 30-60 ℃; meanwhile, the device can rotate to enable the solvent to form a film and increase the evaporation area.

The existing rotary evaporator lacks an automatic water adding function after the water amount in the heating pot is reduced, generally, water is added manually, manpower is consumed, and the distillation efficiency is also reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the rotary evaporator in the prior art lacks the automatic water adding function after the water amount in the heating pot is reduced, generally adds water manually, consumes manpower, also reduces distillation efficiency, and provides a novel rotary evaporator.

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

a novel rotary evaporator comprises a workbench, wherein the top of the workbench is fixedly connected with a vertical plate and a heating pot, a heater is arranged in the heating pot, two groups of long plates are fixedly connected in the heating pot, sliding grooves are arranged on the two groups of long plates, floating plates are connected in the two sliding grooves, the top of the workbench is fixedly connected with a support frame, the top of the support frame is provided with a water tank, the side wall of the bottom of the water tank is connected with a communicating pipe, one end of the communicating pipe far away from the water tank is communicated with the sliding groove on one of the long plates, a one-way valve is arranged on the communicating pipe, the vertical plate is respectively connected with a glass tube and a condenser tube, the vertical plate is provided with a buckle, the glass tube is rotationally connected with the buckle, the one end that the riser was kept away from to the glass pipe rotates and is connected with the evaporating flask, the one end that the evaporating flask was kept away from to the glass pipe rotates with the condenser pipe and links to each other.

Preferably, the lateral wall fixedly connected with of riser is solid fixed ring, the condenser pipe is connected in solid fixed ring, gu fixed ring's inner wall fixedly connected with supports the board, gu fixed ring goes up still threaded connection has the threaded rod, the threaded rod is arranged in the one end rotation of solid fixed ring and is connected with and supports the piece, support the piece and offset with the outer wall of condenser pipe.

Preferably, fixedly connected with motor on the riser, the output of motor rotates and is connected with the axis of rotation, the one end fixedly connected with driving gear of motor is kept away from to the axis of rotation, the outer wall of glass pipe cup joints the driven gear with driving gear meshing.

Preferably, the bottom of condenser pipe is connected with the receiving flask, all be equipped with the lock sleeve between glass pipe and the evaporating flask, glass pipe and condenser pipe, condenser pipe and the receiving flask.

Preferably, the top of the workbench is fixedly connected with a vacuum pump, the vacuum pump is connected with an air guide pipe, and one end, far away from the vacuum pump, of the air guide pipe is communicated with the condensation pipe.

Preferably, a buffer bottle is arranged on the glass tube.

Compared with the prior art, the utility model provides a novel rotatory evaporimeter possesses following beneficial effect:

1. this novel rotary evaporator, during the use, carries out equipment fixing work earlier, and concrete step is: buckle the glass pipe on the buckle on the riser earlier, through the lock sleeve with glass pipe and evaporation flask, the condenser pipe is connected, the condenser pipe is installed in the solid fixed ring, rotate the threaded rod, make the piece that supports on the threaded rod remove to solid fixed ring, offset with the condenser pipe outer wall, carry out the simple fixed to the condenser pipe, reuse lock sleeve is connected the receiving flask with the condenser pipe, accomplish the installation work, after the installation is accomplished, the starter motor, the motor will drive the driving gear and rotate, driving gear and driven gear meshing, it rotates to drive driven gear, it is rotatory to further drive the glass pipe, the vacuum pump can be opened in the course of the work, take out the vacuum state with the inside of condenser pipe through the air duct, solution heats the diffusion evaporation under the negative pressure, the evaporation rate is improved.

2. This novel rotatory evaporimeter, the kickboard in the spout goes up and down in step according to the water level height in the heating pot, when heating the evaporation bottle, the water level in the heating pot reduces, the certain height of decline that the kickboard will correspond this moment, communicating pipe will communicate with the spout this moment, through set up the check valve on communicating pipe, can make the water tank one-way to the water injection in the heating pot, water level rises in the heating pot, the kickboard resets again, plug up communicating pipe, the water tank stops to the water injection in the heating pot, guarantee that the water yield is sufficient in the heating pot, can heat the evaporation bottle always, ensure that the evaporation reaction goes on always, avoid artifical adding water, the use of manpower is saved, also improve distillation efficiency.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses simple structure, convenient to use can add water automatically, guarantees that the distillation can go on always, improves distillation efficiency.

Drawings

Fig. 1 is a schematic structural view of a novel rotary evaporator provided by the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1 of a novel rotary evaporator provided by the present invention;

fig. 3 is the schematic view of the internal structure of the fixing ring of the novel rotary evaporator provided by the utility model.

In the figure: 1. a work table; 2. a vertical plate; 3. heating the pan; 4. a glass tube; 5. an evaporation bottle; 6. a long plate; 7. a chute; 8. a floating plate; 9. a communicating pipe; 10. a one-way valve; 11. a water tank; 12. a buffer bottle; 13. a condenser tube; 14. a collection bottle; 15. a locking sleeve; 16. a fixing ring; 17. a resisting block; 18. a threaded rod; 19. a vacuum pump; 20. an air duct; 21. a motor; 22. a driving gear; 23. a driven gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a novel rotary evaporator comprises a workbench 1, wherein a vertical plate 2 and a heating pan 3 are fixedly connected to the top of the workbench 1, a heater is arranged in the heating pan 3, two groups of long plates 6 are fixedly connected to the heating pan 3, sliding chutes 7 are respectively arranged on the two groups of long plates 6, floating plates 8 are connected to the two sliding chutes 7, a supporting frame is fixedly connected to the top of the workbench 1, a water tank 11 is arranged at the top of the supporting frame, a communicating pipe 9 is connected to the bottom side wall of the water tank 11, one end of the communicating pipe 9 far away from the water tank 11 is communicated with the sliding chute 7 on one long plate 6, a one-way valve 10 is arranged on the communicating pipe 9, a glass tube 4 and a condenser tube 13 are respectively connected to the vertical plate 2, a buckle is arranged on the vertical plate 2, the glass tube 4 is rotatably connected to the buckle, an evaporation bottle 5 is rotatably connected to one end of the glass tube 4 far away from the vertical plate 2, and the condenser tube 13 is rotatably connected to the other end of the evaporation bottle 4, the side wall of the vertical plate 2 is fixedly connected with a fixing ring 16, the condenser pipe 13 is connected in the fixing ring 16, the inner wall of the fixing ring 16 is fixedly connected with a resisting plate, the fixing ring 16 is further connected with a threaded rod 18 in a threaded manner, one end of the threaded rod 18, which is arranged in the fixing ring 16, is rotatably connected with a resisting block 17, the resisting block 17 is abutted against the outer wall of the condenser pipe 13, the vertical plate 2 is fixedly connected with a motor 21, the output end of the motor 21 is rotatably connected with a rotating shaft, one end of the rotating shaft, which is far away from the motor 21, is fixedly connected with a driving gear 22, the outer wall of the glass pipe 4 is sleeved with a driven gear 23 meshed with the driving gear 22, the bottom of the condenser pipe 13 is connected with a collecting bottle 14, the glass pipe 4 and an evaporation bottle 5, the glass pipe 4 and the condenser pipe 13, locking sleeves 15 are arranged between the condenser pipe 13 and the collecting bottle 14, the top of the workbench 1 is fixedly connected with an air duct vacuum pump 19, and the vacuum pump 19 is connected with a 20, one end of the air duct 20, which is far away from the vacuum pump 19, is communicated with the condensation pipe 13, and the glass tube 4 is provided with a buffer bottle 12.

The working principle is as follows: the utility model discloses in, during the use, carry out equipment fixing work earlier, concrete step is: firstly, the glass tube 4 is buckled on a buckle on the vertical plate 2, the glass tube 4 is connected with the evaporation bottle 5 and the condensation tube 13 through the locking sleeve 15, the condensation tube 13 is installed in the fixing ring 16, the threaded rod 18 is rotated, the abutting block 17 on the threaded rod 18 moves towards the fixing ring 16 and abuts against the outer wall of the condensation tube 13, the condensation tube 13 is simply fixed, the collection bottle 14 is connected with the condensation tube 13 through the locking sleeve 15, the installation work is completed, after the installation is completed, the motor 21 is started, the motor 21 drives the driving gear 22 to rotate, the driving gear 22 is meshed with the driven gear 23 to drive the driven gear 23 to rotate, the glass tube 4 is further driven to rotate, the vacuum pump 19 can be opened in the working process, the inside of the condensation tube 13 is pumped to a vacuum state through the air duct 20, and the solution is heated, diffused and evaporated under negative pressure, and the evaporation speed is improved.

The utility model discloses in, 8 kickboards in the spout 7 go on synchronous lift according to the water level height in the heating pot 3, when heating evaporation bottle 5, the water level in the heating pot 3 reduces, 8 certain height of decline that will correspond of kickboards this moment, 9 communicating pipe will communicate with spout 7 this moment, through set up check valve 10 on communicating pipe 9, can make 11 one-way water injection to 3 interior water injection of heating pot of water tank, water level rises when 3 interior water levels of heating pot, 8 kickboards reset again, plug up communicating pipe 9, water tank 11 stops to 3 interior water injection of heating pot, guarantee that 3 interior water capacity of heating pot is sufficient, can heat evaporation bottle 5 always, ensure that the evaporation reaction goes on always, avoid artifical adding water, use manpower sparingly, also improve distillation efficiency.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel rotary evaporator comprises a workbench (1) and is characterized in that the top of the workbench (1) is fixedly connected with a vertical plate (2) and a heating pot (3), a heater is arranged in the heating pot (3), the heating pot (3) is internally fixedly connected with two groups of long plates (6), the long plates (6) are both provided with sliding grooves (7), two sliding grooves (7) are internally connected with floating plates (8), the top of the workbench (1) is fixedly connected with a supporting frame, the top of the supporting frame is provided with a water tank (11), the side wall of the bottom of the water tank (11) is connected with a communicating pipe (9), one end of the communicating pipe (9) far away from the water tank (11) is communicated with one of the sliding grooves (7) on the long plates (6), the communicating pipe (9) is provided with a one-way valve (10), the vertical plate (2) is respectively connected with a glass tube (4) and a condensation tube (13), be equipped with the buckle on riser (2), glass pipe (4) are rotated and are connected on the buckle, the one end rotation that riser (2) were kept away from in glass pipe (4) is connected with evaporating flask (5), the one end that evaporating flask (5) were kept away from in glass pipe (4) rotates with condenser pipe (13) and links to each other.

2. The novel rotary evaporator according to claim 1, characterized in that the side wall of the vertical plate (2) is fixedly connected with a fixing ring (16), the condenser tube (13) is connected in the fixing ring (16), the inner wall of the fixing ring (16) is fixedly connected with a resisting plate, the fixing ring (16) is further connected with a threaded rod (18) in a threaded manner, one end of the threaded rod (18) arranged in the fixing ring (16) is rotatably connected with a resisting block (17), and the resisting block (17) is abutted against the outer wall of the condenser tube (13).

3. The novel rotary evaporator according to claim 1, characterized in that a collecting bottle (14) is connected to the bottom of the condensation tube (13), and locking sleeves (15) are arranged between the glass tube (4) and the evaporation bottle (5), between the glass tube (4) and the condensation tube (13), and between the condensation tube (13) and the collecting bottle (14).

4. The novel rotary evaporator according to claim 1, characterized in that a vacuum pump (19) is fixedly connected to the top of the working platform (1), an air duct (20) is connected to the vacuum pump (19), and one end of the air duct (20) far away from the vacuum pump (19) is communicated with the condensation pipe (13).

5. A novel rotary evaporator according to claim 4 characterized in that a buffer bottle (12) is arranged on the glass tube (4).