CN220736230U

CN220736230U - Rotary evaporator

Info

Publication number: CN220736230U
Application number: CN202322508007.1U
Authority: CN
Inventors: 马希正; 路亚红; 刘会改; 胡超云; 李文岳
Original assignee: SHIJIAZHUANG RAPISTEP PHARMACEUTICAL TECHNOLOGY R&D Inc
Current assignee: SHIJIAZHUANG RAPISTEP PHARMACEUTICAL TECHNOLOGY R&D Inc
Priority date: 2023-09-15
Filing date: 2023-09-15
Publication date: 2024-04-09
Anticipated expiration: 2033-09-15

Abstract

The utility model relates to a rotary evaporator, which comprises a supporting seat, wherein a lifting device is arranged on the supporting seat, the lifting device comprises a hydraulic cylinder, a hydraulic rod, a supporting sleeve and a mounting frame, the hydraulic cylinder is arranged in the supporting sleeve, the mounting frame is arranged above the supporting sleeve, the bottom end of the hydraulic rod is connected with the output end of the hydraulic cylinder, the top end of the hydraulic rod is connected with the top end of the mounting frame, an evaporation device is arranged on the supporting seat, the evaporation device comprises a heating pot, a rotating motor, a gear, a movable sleeve and a distillation bottle, the heating pot is arranged on the supporting seat, the rotating motor is arranged above the mounting frame, the movable sleeve is arranged on the inner side of the mounting frame, the distillation bottle is movably connected with the mounting frame through the movable sleeve, the gear is respectively arranged on the outer side of the output end of the rotating motor and the movable sleeve, a water adding device is arranged above the heating pot, the water adding device comprises a high-level water tank, a box cover and a water injection pipe, the box cover is arranged on the top end of the high-level water tank, and the other side of the mounting frame is connected with a condensing device.

Description

Rotary evaporator

Technical Field

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

Background

The rotary evaporator, also called rotary evaporator, is a common device in laboratory, it is by motor, distillation flask, heating pot and condenser pipe etc. is distilled volatile solvent in succession under the decompression condition, however, there are some problems in current rotary evaporator, wherein, the water bath heating system in the heating pot is key part, after heating for a long time, hot water evaporation reduces, needs artifical interpolation water, if can not add in time, can lead to evaporation effect variation or failure, simultaneously, prior art's water bath heating pot is easy spill when heating to water boiling, easy scald operator.

Rotary evaporators are widely used in chemical, pharmaceutical and food industries for separating solvents and solutes from liquid mixtures, however, existing rotary evaporators generally employ a stationary structure, which limits their applicability in practical applications.

Conventional rotary evaporators generate a large amount of vapor during evaporation, and the vapor needs to be condensed into liquid by an external condensing device to achieve effective separation and recovery, however, conventional condensing devices generally adopt a single condensing mode, i.e., condensing medium is introduced from the outside into the device and then discharged, resulting in waste of the condensing medium.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a rotary evaporator.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a rotary evaporator, includes the supporting seat, be provided with elevating gear on the supporting seat, elevating gear includes pneumatic cylinder, hydraulic stem, supporting sleeve and mounting bracket, pneumatic cylinder demountable installation is in the supporting sleeve, but mounting bracket movable mounting is in supporting sleeve top, the hydraulic stem bottom is connected with the pneumatic cylinder output, the hydraulic stem top is connected with the inside top of mounting bracket, install evaporation plant on the supporting seat, evaporation plant includes heating pot, rotating electrical machines, gear, movable sleeve and retort, the heating pot is installed in the supporting seat top, the rotating electrical machines passes through bolt demountable installation in the mounting bracket top, but movable sleeve movable mounting is inboard at the mounting bracket, but retort demountable installation is in movable sleeve one side, but and the retort carries out swing joint through movable sleeve and mounting bracket, but the gear is installed in rotating electrical machines output and movable sleeve outside respectively, just intermeshing between the gear, the heating pot top is provided with the water filling device, the water filling device includes high-level water tank, case lid and water injection pipe, the case lid is dismantled on the side, but the water tank top is installed at high-level water tank one side, the water tank is installed to high-level water tank one side.

Preferably, the condensing equipment includes condensation storehouse, transfer storehouse, condenser pipe and collecting bottle, transfer storehouse demountable installation is in the mounting bracket opposite side, the condensation storehouse is installed in transfer storehouse one side, the condenser pipe spiral sets up in the condensation storehouse, the collecting bottle demountable installation is in condensation storehouse below, the condensation storehouse top is connected with circulation subassembly, and condensing equipment is responsible for condensing and collecting the gas after the evaporation.

In a further preferred aspect, the circulating assembly includes a water storage tank, a water pump and a delivery pipe, the water storage tank is mounted on the support seat, the water pump is detachably mounted on the support seat through a bolt, the input end of the water pump is connected with the bottom end of the water storage tank through the delivery pipe, the output end of the water pump is connected with the top end of the condensing pipe through the delivery pipe, the bottom end of the condensing pipe is connected with the top end of the water storage tank through the delivery pipe, and the condensing medium can be recycled through the arrangement of the circulating assembly, so that the waste of resources is reduced.

In a further preferred aspect, the heating pot is provided with a movable rod below, a spring is sleeved outside the movable rod, a water inlet pipe is arranged on one side of the heating pot, a through hole is formed in the side wall of the water inlet pipe, the water inlet pipe is movably installed in the water injection pipe, and the arrangement of the components can enable the liquid level in the heating pot to be always at the same height, so that the stability of the evaporation process is guaranteed.

In a further preferred embodiment, the on/off valve is disposed on one side of the transfer bin, the on/off valve is detachably connected with one end of the transfer bin, a liquid inlet pipe is disposed in the transfer bin, one end of the liquid inlet pipe is connected with the valve, the other end of the liquid inlet pipe extends into the distillation bottle, the on/off valve and the liquid inlet pipe can be used for feeding, and the evaporated gas is prevented from flowing out of the evaporation device in a backward direction.

In a further preferred mode, the bottom end of the collecting bottle and the water injection pipe are both provided with control valves, the top end of the collecting bottle is provided with a release valve, the input end of the release valve is detachably connected with the top end of the collecting bottle, the release valve can prevent the air pressure in the equipment from being too high, and the two control valves are respectively responsible for controlling the discharging speed and the water injection speed.

In a further preferred aspect, the heating pot is provided with a protective cover, the protective cover is made of transparent materials and detachably mounted on the top end of the heating pot, and the protective cover can prevent water in the heating pot from splashing out, so that safety is improved.

Compared with the prior art, the utility model provides a rotary evaporator, which has the following beneficial effects:

through the setting of high-level water tank, case lid, water injection pipe, movable rod, spring, inlet tube and through-hole, can realize in time supplementing the moisture in the water-bath, keep invariable water level to ensure that equipment operates under stable operating condition, such design can improve the efficiency and the stability of evaporation process, and avoid the too high or the too low condition of water level to take place, further promote the evaporation effect.

Through the arrangement of the hydraulic cylinder, the hydraulic rod, the supporting sleeve and the mounting frame, the height of the distillation flask can be adjusted according to actual conditions and drug characteristics, in this way, the rotary evaporator can meet the requirements under more different experimental conditions, the flexibility and the controllability of the experiment are improved, the evaporation speed can be improved, and the yield is improved by adjusting the equipment to a proper height; or the device is adjusted to a lower height, so that the contact time of the evaporated liquid and the gas can be increased, the separation effect is improved, the operation of the device is more flexible and accurate due to the height adjusting device, and the device can be optimally adjusted according to different requirements.

Through setting up of condensation storehouse, transfer storehouse, condenser pipe and collecting bottle, can be to the condensation and the collection of evaporating gas, simultaneously through storage water tank, water pump and the conveyer pipe that set up, can be with the comdenstion water cyclic utilization who produces, reduced the consumption of comdenstion water, practiced thrift the water resource, reduce the load to natural environment, reduced the emission of waste water.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1;

FIG. 3 is a schematic view of a partial enlarged structure at B in FIG. 1;

FIG. 4 is a schematic view of a structure with a shield portion removed in accordance with the present utility model;

FIG. 5 is a schematic cross-sectional view of a condensation chamber portion of the present utility model;

FIG. 6 is a schematic cross-sectional view of a mounting bracket portion of the present utility model;

fig. 7 is a schematic cross-sectional view of a support sleeve portion of the present utility model.

In the figure: 1. a support base; 2. a hydraulic cylinder; 3. a hydraulic rod; 4. a support sleeve; 5. a mounting frame; 6. heating the pot; 7. a rotating electric machine; 8. a gear; 9. a movable sleeve; 10. a distillation flask; 11. a high level water tank; 12. a case cover; 13. a water injection pipe; 14. a condensation bin; 15. a transfer bin; 16. a condensing tube; 17. a collection bottle; 18. a water storage tank; 19. a water pump; 20. a delivery tube; 21. a movable rod; 22. a spring; 23. a water inlet pipe; 24. a through hole; 25. opening and closing the valve; 26. a liquid inlet pipe; 27. a control valve; 28. a release valve; 29. and a protective cover.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

referring to fig. 1 to 7, in an embodiment of the present utility model:

the utility model provides a rotary evaporator, includes supporting seat 1, be provided with elevating gear on the supporting seat 1, elevating gear includes pneumatic cylinder 2, hydraulic stem 3, supporting sleeve 4 and mounting bracket 5, pneumatic cylinder 2 demountable installation is in supporting sleeve 4, but mounting bracket 5 movable mounting is in supporting sleeve 4 top, 3 bottom of hydraulic stem is connected with the 2 output of pneumatic cylinder, 3 top of hydraulic stem is connected with the inside top of mounting bracket 5, install evaporation plant on the supporting seat 1, evaporation plant includes heating pan 6, rotating electrical machines 7, gear 8, movable sleeve 9 and distillation flask 10, heating pan 6 installs in supporting seat 1 top, rotating electrical machines 7 passes through bolt demountable installation in mounting bracket 5 top, movable sleeve 9 movable mounting is in mounting bracket 5 inboard, distillation flask 10 demountable installation is in movable sleeve 9 one side, and distillation flask 10 carries out movable connection through movable sleeve 9 and mounting bracket 5, gear 8 installs respectively in rotating electrical machines 7 output and movable sleeve 9 outside, just gear 8 intermeshed between 6, water injection device has water injection tank top 11 and water tank top 11 are installed to water tank top, water tank top 11 is installed to water tank top 11.

In the embodiment of the utility model, the condensing device comprises a condensing bin 14, a transferring bin 15, a condensing pipe 16 and a collecting bottle 17, wherein the transferring bin 15 is detachably arranged on the other side of the mounting frame 5, the condensing bin 14 is arranged on one side of the transferring bin 15, the condensing pipe 16 is spirally arranged in the condensing bin 14, the collecting bottle 17 is detachably arranged below the condensing bin 14, the top end of the condensing bin 14 is connected with a circulating component, evaporated gas enters the condensing bin 14 through the transferring bin 15, the condensing pipe 16 is filled with cooling water in advance, and the gas entering the condensing bin 14 is converted into condensed liquid through condensation and then flows into the collecting bottle 17 and is collected.

In the embodiment of the utility model, the circulation assembly comprises a water storage tank 18, a water pump 19 and a conveying pipe 20, wherein the water storage tank 18 is arranged on the supporting seat 1, the water pump 19 is detachably arranged on the supporting seat 1 through bolts, the input end of the water pump 19 is connected with the bottom end of the water storage tank 18 through the conveying pipe 20, the output end of the water pump 19 is connected with the top end of the condensation pipe 16 through the conveying pipe 20, the bottom end of the condensation pipe 16 is connected with the top end of the water storage tank 18 through the conveying pipe 20, the water pump 19 is opened, the cooling water in the water storage tank 18 is pumped out through the conveying pipe 20 connected with the input end of the water pump 19, the pumped water is conveyed into the condensation pipe 16 through the conveying pipe 20 connected with the output end of the water pump 19, and then the cooling water flows from the top end of the condensation pipe 16 to the bottom end of the condensation pipe 16, and then is conveyed into the water storage tank 18 again through the conveying pipe 20 connected with the bottom end of the condensation pipe 16, so that the circulation of the cooling water is realized.

In the embodiment of the utility model, a movable rod 21 is arranged below the heating pot 6, a spring 22 is sleeved outside the movable rod 21, a water inlet pipe 23 is arranged at one side of the heating pot 6, a through hole 24 is formed in the side wall of the water inlet pipe 23, the water inlet pipe 23 can be movably installed in the water injection pipe 13, when the hot water in the heating pot 6 is evaporated and reduced, the weight of the heating pot 6 can be lightened, at the moment, the tension of the spring 22 can enable the heating pot 6 to move upwards, meanwhile, the water inlet pipe 23 connected with one side of the heating pot 6 can also move upwards, when the through hole 24 formed in the water inlet pipe 23 is connected with the water injection pipe 13 arranged at one side of the high-level water tank 11, water in the high-level water tank 11 can enter the heating pot 6 through the water injection pipe 13 and the water inlet pipe 23 for water adding, during the water adding process, the weight of the heating pot 6 can be gradually increased, the water inlet pipe 23 can be gradually lowered, then the through hole 24 can be gradually separated from the water injection pipe 13, and is not connected any more, and when the through hole 24 is completely separated from the water injection pipe 13, the high-level water tank 11 stops adding water into the heating pot 6.

In the embodiment of the present utility model, an on/off valve 25 is disposed on one side of the transfer bin 15, the on/off valve 25 is detachably connected with one end of the transfer bin 15, a liquid inlet pipe 26 is disposed in the transfer bin 15, one end of the liquid inlet pipe 26 is connected with the valve, the other end of the liquid inlet pipe 26 extends into the distillation flask 10, when the liquid to be distilled needs to be injected into the distillation flask 10, the on/off valve 25 can be opened, and then the liquid is added into the distillation flask 10 through the liquid inlet pipe 26.

In the embodiment of the utility model, the bottom end of the collecting bottle 17 and the water injection pipe 13 are both provided with the control valve 27, the top end of the collecting bottle 17 is provided with the air release valve 28, the input end of the air release valve 28 is detachably connected with the top end of the collecting bottle 17, the two control valves 27 can respectively control the water injection speed and the discharging speed, and the air release valve 28 can prevent explosion caused by overhigh air pressure in the equipment.

In the embodiment of the utility model, the protective cover 29 is arranged on the heating pot 6, the protective cover 29 is made of transparent materials, the protective cover 29 is detachably arranged at the top end of the heating pot 6, and the protective cover 29 can prevent water in the heating pot 6 from splashing, so that the safety is improved.

Example 2:

referring to fig. 1 to 7, in an embodiment of the present utility model:

when in use, liquid needing to be distilled is firstly placed in the distillation flask 10, then the distillation flask 10 is detachably connected with the movable sleeve 9 and is movably connected with the mounting frame 5, then cooling water is firstly poured into the condensation pipe 16, then a proper amount of water is added into the heating pot 6, then the protection cover 29 is detachably arranged above the heating pot 6, then the hydraulic cylinder 2 is opened, the hydraulic cylinder 2 drives the mounting frame 5 to ascend or descend through the hydraulic rod 3 connected with the output end, thereby driving the distillation flask 10 to ascend or descend, after the distillation flask 10 is adjusted to a proper height, the hydraulic cylinder 2 is closed, then the heating pot 6 is opened for heating water in the heating pot 6, thereby heating the liquid in the distillation flask 10 in a water bath, then the rotary motor 7 is opened, the rotary motor 7 drives the gear 8 arranged outside the movable sleeve 9 to rotate through the gear 8 connected with the output end, thereby driving the movable sleeve 9 and the distillation flask 10 to rotate, ensuring the uniformity and stability of distillation, then the evaporated gas enters the cooling bin through the transfer bin 15, the gas entering the condensation bin 14 is converted into condensed liquid through the condensation effect of cooling water in the condensation pipe 16, then flows into the collection bottle 17 and is collected, in the process, the water pump 19 is started, the water pump 19 pumps the cooling water in the water storage tank 18 through the conveying pipe 20 connected with the input end, then the pumped water is conveyed into the condensation pipe 16 through the conveying pipe 20 connected with the output end of the water pump 19, then the cooling water flows from the top end of the condensation pipe 16 to the bottom end of the condensation pipe 16, and then is conveyed into the water storage tank 18 again through the conveying pipe 20 connected with the bottom end of the condensation pipe 16, thereby realizing the recycling of the cooling water, in the distillation process, when the hot water in the heating pot 6 is evaporated and reduced, the weight of the heating pot 6 can be lightened, at this time, the tension of the spring 22 can enable the heating pot 6 to move upwards, meanwhile, the water inlet pipe 23 connected to one side of the heating pot 6 can also move upwards along with the heating pot, when the through hole 24 formed in the water inlet pipe 23 is connected with the water injection pipe 13 arranged on one side of the high-level water tank 11, the control valve 27 arranged on one side of the high-level water tank 11 is firstly opened, water in the high-level water tank 11 can enter the heating pot 6 through the water injection pipe 13 and the water inlet pipe 23 to be added, in the water adding process, the weight of the heating pot 6 is gradually increased, the water inlet pipe 23 can be gradually lowered, then the through hole 24 can be gradually separated from the water injection pipe 13 and is not connected, when the collecting bottle 17 is fully collected, a collecting device can be connected below the control valve 27 arranged at the bottom end of the collecting bottle 17, then the control valve 27 is opened, liquid in the collecting bottle 17 is collected, after the control valve 27 is discharged, the control valve 27 is closed, the whole device is removed, and when the air pressure relief device is externally connected with the air release device is required, and the air valve is opened, and the air release device can be opened when the air release device is needed, and the air release device is completely is opened, and the air release device is used for the distillation process is completely when the air release device is opened.

Example 3:

referring to fig. 1 to 6, in an embodiment of the present utility model:

based on embodiment 2, in the whole operation process, when liquid needs to be continuously added into the distillation flask 10, the container filled with liquid is connected with the on-off valve 25, then the heating pot 6 and the rotating motor 7 are closed, the air pressure in the equipment can be gradually increased due to evaporation of the distillation flask 10, then the air pressure in the equipment is in a stable state due to decompression of the decompression valve, the air pressure in the equipment can be gradually changed into a negative pressure state due to condensation in the condensation pipe 16 and natural cooling, at the moment, the on-off valve 25 is opened, the liquid can be extracted from the container and then conveyed into the distillation flask 10 through the conveying pipe 20, after the liquid is injected, the on-off valve 25 is closed, then the external equipment is removed, and the equipment is re-operated for distillation.

In all the above mentioned solutions, in which the connection between two components can be chosen according to the actual situation, a welded, bolt-and-nut-fitted connection, a bolt-or-screw connection or other known connection means, which are not described in detail herein, where reference is made to a written fixed connection, the preferred consideration is welding, although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that numerous variations, modifications, substitutions and alterations can be made to these embodiments without departing from the principle and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Rotary evaporator, comprising a support seat (1), characterized in that: the utility model discloses a water tank, including supporting seat (1), supporting seat (1) is provided with elevating gear, elevating gear includes pneumatic cylinder (2), hydraulic rod (3), supporting sleeve (4) and mounting bracket (5), pneumatic cylinder (2) demountable installation is in supporting sleeve (4), but mounting bracket (5) movable mounting is in supporting sleeve (4) top, hydraulic rod (3) bottom is connected with pneumatic cylinder (2) output, hydraulic rod (3) top is connected with mounting bracket (5) inside top, install evaporation plant on supporting seat (1), evaporation plant includes heating pot (6), rotating electrical machines (7), gear (8), movable sleeve (9) and distillation bottle (10), heating pot (6) are installed in supporting seat (1) top, rotating electrical machines (7) are through bolt demountable installation in mounting bracket (5) top, movable sleeve (9) movable mounting is inboard in mounting bracket (5), distillation bottle (10) are through movable sleeve (9) and (5) carrying out movable connection, gear (8) are installed in water injection device (12) and are located outside water tank cover (13) respectively to water tank cover (7), the water injection pipe (13) is arranged at one side of the bottom end of the high-level water tank (11), and the other side of the mounting frame (5) is connected with a condensing device.

2. A rotary evaporator according to claim 1 wherein: the condensing device comprises a condensing bin (14), a transferring bin (15), a condensing pipe (16) and a collecting bottle (17), wherein the transferring bin (15) is detachably arranged on the other side of the mounting frame (5), the condensing bin (14) is arranged on one side of the transferring bin (15), the condensing pipe (16) is spirally arranged in the condensing bin (14), the collecting bottle (17) is detachably arranged below the condensing bin (14), and the top end of the condensing bin (14) is connected with a circulating assembly.

3. A rotary evaporator according to claim 2 wherein: the circulating assembly comprises a water storage tank (18), a water pump (19) and a conveying pipe (20), wherein the water storage tank (18) is arranged on a supporting seat (1), the water pump (19) is detachably arranged on the supporting seat (1) through bolts, the input end of the water pump (19) is connected with the bottom end of the water storage tank (18) through the conveying pipe (20), the output end of the water pump (19) is connected with the top end of a condensing pipe (16) through the conveying pipe (20), and the bottom end of the condensing pipe (16) is connected with the top end of the water storage tank (18) through the conveying pipe (20).

4. A rotary evaporator according to claim 1 wherein: the heating pot (6) below is equipped with movable rod (21), movable rod (21) outside cover is equipped with spring (22), heating pot (6) one side is equipped with inlet tube (23), through-hole (24) have been seted up to inlet tube (23) lateral wall, but inlet tube (23) movable mounting is in water injection pipe (13).

5. A rotary evaporator according to claim 2 wherein: the automatic distillation device is characterized in that an opening and closing valve (25) is arranged on one side of the transfer bin (15), the opening and closing valve (25) is detachably connected with one end of the transfer bin (15), a liquid inlet pipe (26) is arranged in the transfer bin (15), one end of the liquid inlet pipe (26) is connected with the valve, and the other end of the liquid inlet pipe (26) extends into the distillation bottle (10).

6. A rotary evaporator according to claim 5 wherein: the collecting bottle (17) bottom and water injection pipe (13) are all equipped with control valve (27), collecting bottle (17) top is equipped with air release valve (28), air release valve (28) input carries out detachable connection with collecting bottle (17) top.

7. A rotary evaporator according to claim 1 wherein: the heating pot (6) is provided with a protective cover (29), and the protective cover (29) is detachably arranged at the top end of the heating pot (6).