CN216571599U - Air medium heating and cooling rotary evaporator - Google Patents

Abstract

The utility model discloses a rotary evaporator for heating and cooling air medium, which comprises a bracket, a rotary evaporation mechanism and a condensation mechanism; the rotating mechanism comprises a high-temperature air circulating pump, an outer heat-insulating sleeve, an inner rotary steaming bottle, a rotating sleeve, a connecting cap, a rotating sleeve and a driver; the inner rotary steaming bottle bodies are arranged in the outer heat-insulating sleeve at intervals, the outer heat-insulating sleeve is provided with an air inlet and an air outlet which are communicated with the heating cavity, and the air inlet and the air outlet are respectively communicated with an air outlet and an air inlet of the high-temperature air circulating pump through pipelines; the condensing mechanism comprises a gas guide bottle, a condensing pipe, a collecting bottle and a low-temperature air circulating pump; the inner disc of the condensation pipe is provided with a cooling pipe, the upper end and the lower end of the cooling pipe are respectively communicated with an air inlet and an air outlet of the low-temperature air circulating pump through pipelines, and the bottom of the condensation pipe is provided with a collecting bottle; the utility model discloses a pollution-free and no purchasing cost's air is as heating and coolant to at inclosed cavity of heating end design and insulation material layer, the loss of energy that significantly reduces, improve equipment's production efficiency.

Description

Air medium heating and cooling rotary evaporator

Technical Field

The utility model belongs to the technical field of the rotary evaporator, concretely relates to air medium heating and cooling's rotary evaporator.

Background

A rotary evaporator, also called a rotary evaporator, is an evaporation instrument widely used in laboratories and is composed of a motor, a distillation flask, a heating pot, a condenser tube and the like, is mainly used for continuously distilling volatile solvents under reduced pressure, and is applied to the fields of chemistry, chemical engineering, biomedicine and the like.

At present, the rotary evaporator generally adopts a liquid medium to realize heating of the evaporator and cooling of the condenser. Heating and cooling media such as heat conducting oil are usually silicone substances such as polydimethylsiloxane polymers, so that the price is high, and the risk of polluting a sample exists when the heating and cooling media are not used properly. In addition, at the heating end, part of the bottle evaporator is immersed into the open water bath and rotates under the action of the driver, so that the sample is uniformly heated. The existing water bath kettle-evaporator structure with an open design not only easily enables heat conduction oil to volatilize and dissipate in the working process, but also causes great heat loss, a heat source is difficult to uniformly distribute a bottle body, a good heating effect is only achieved at the part of the bottle body, which is in contact with the heat source, the purpose of experiments needing precise heating is difficult to meet, and therefore, the research on the rotary evaporator for heating and cooling the air medium is necessary.

SUMMERY OF THE UTILITY MODEL

Defect and problem to existing equipment existence, the utility model provides an air dielectric heating refrigerated rotary evaporator, the effectual cooling heat conduction oil that exists among the existing equipment of having solved pollutes big and bottle heating inhomogeneous problem.

The utility model provides a scheme that its technical problem adopted is: a rotary evaporator for heating and cooling an air medium comprises a bracket, a rotary evaporation mechanism and a condensation mechanism; the rotary steaming mechanism comprises a high-temperature air circulating pump, an outer heat-insulating sleeve, an inner rotary steaming bottle, a rotary sleeve, a connecting cap, a rotary sleeve and a driver; the rack is provided with a driving seat, the rotary sleeve is rotatably arranged in the driving seat and is in transmission connection with the driver, the lower end of the rotary sleeve is provided with a butt joint port, the lower end of the driving seat is provided with a connector, the bottle bodies of the internal rotary steaming bottles are arranged in the external heat-insulating sleeve at intervals, the bottle mouths of the internal rotary steaming bottles are rotatably connected with the external heat-insulating sleeve through bearings or shaft sleeves, and the bottle mouths can be in butt joint in the butt joint port; the upper end of the outer heat-insulating sleeve is provided with a limiting groove, and the connecting cap is rotatably arranged in the limiting groove and can be in threaded connection with the connecting head; a sealing sleeve is arranged at the port of the outer heat-insulating sleeve, so that a closed heating cavity is formed between the outer heat-insulating sleeve and the inner rotator, an air inlet and an air outlet which are communicated with the heating cavity are arranged on the outer heat-insulating sleeve, and the air inlet and the air outlet are respectively communicated with an air outlet and an air inlet of the high-temperature air circulating pump through pipelines; the condensing mechanism comprises a gas guide bottle, a condensing pipe, a collecting bottle and a low-temperature air circulating pump; the air guide bottle is fixed on driving the seat, the swivel sleeve rotates the suit in the bottom of air guide bottle, and the upper portion of air guide bottle is provided with opening and air guide port that can seal, and the air guide port is connected with the condenser pipe through the pipeline, and the condenser pipe inner disc is equipped with the cooling tube, the upper end and the lower extreme of cooling tube are respectively through the air inlet and the gas vent intercommunication of pipeline with low temperature air circulating pump, are provided with the receiving flask in the bottom of condenser pipe.

Further, outer insulation cover includes shell, heat preservation and inner shell, inner shell and shell interval set up to be provided with the heat preservation between the two.

Furthermore, two partition ribs are arranged on the inner wall of the inner shell, the inner sides of the partition ribs are in top contact with and support the inner rotary steaming bottle, and meanwhile, the heating cavity is divided into an air inlet cavity and an air exhaust cavity, the air inlet cavity is communicated with the air inlet, and the air exhaust cavity is communicated with the air exhaust port; a gap exists between the lower portions of the two partition ribs, and the gap communicates the air intake chamber with the air discharge chamber.

Further, guide ribs are arranged among the separation ribs, the inner sides of the guide ribs are in top contact with and support the internal rotary steaming bottle, the air inlet cavity and the air exhaust cavity are divided into a plurality of heating sub-areas, and gaps exist among the lower parts of the guide ribs, so that a total heating area is formed at the bottom of the internal rotary steaming bottle.

Furthermore, the two partition ribs are symmetrically arranged, and the openings at the tail ends of the adjacent air inlet cavity guide ribs are larger than the openings at the tail ends of the adjacent air exhaust cavity guide ribs.

Further, the shape of the total heating area is circular.

Furthermore, the butt joint port is a conical port or a circular port, and when the connecting cap is completely butted with the connector, the bottle mouth of the internal rotation steaming bottle is matched and sleeved and is in top contact with the butt joint port.

Furthermore, the condenser pipe is vertically provided with two sets, the cooling pipes in the two condenser pipes are communicated from top to bottom, the exhaust port of the low-temperature air circulating pump is communicated with the cooling pipe at the lower part, and the air inlet of the low-temperature air circulating pump is communicated with the cooling pipe at the upper part.

Further, a bracket is arranged on the support, a tray is arranged on the upper portion of the bracket, and the tray is attached to the lower portion of the outer heat-insulating sleeve.

Furthermore, the rotating sleeve is in transmission connection with a driver through a bevel gear set.

The utility model has the advantages that: the utility model discloses to the inhomogeneous problem of heating that exists in the current structure, the utility model discloses set up internal rotation steam bottle and outer insulation cover, there is the clearance between evaporimeter and the outer insulation cover including, and set up rotation support and seal structure at both openings parts, just rotation support is located the outside, and seal structure is in the inboard, has formed confined heating cavity to set up air inlet and gas vent in heating cavity department, utilized the high temperature air circulating pump to provide high-temperature gas, and retrieve circulating gas, form circulating heat source supply loop.

The utility model discloses in use high temperature air to heat the interior bottle of evaporating soon as the medium, compare traditional water-bath heating (only the part that contacts the water bath has better heating effect), the whole interior bottle of evaporating soon of air heating can be convenient for, heating range is wide, and the heating is even, and heats the cavity and be enclosed construction, and the heat scatters and disappears fewly, and heat source utilization rate is high, heats more fully.

Simultaneously the utility model discloses an improve high temperature air's utilization ratio, the partition rib has been set up on the inner wall of outer insulation cover, the bottom of partition rib can with interior rotatory steamer bottle between touch or have the clearance slightly for the top, it sets up the purpose and forms to make high temperature gas can follow two partition ribs downstream for making, then discharge from the opposite side, thereby make high temperature gas can be through the whole regions of interior rotatory steamer, great improvement gaseous utilization ratio, utilize the driver to order about interior rotatory steamer simultaneously and rotate, carry out even abundant heating to interior rotatory steamer.

From this, the utility model discloses a pollution-free and no purchasing cost's air is as heating and coolant to at inclosed cavity of heating end design and insulation material layer, thereby the energy loss that significantly reduces, improve equipment's production efficiency. Compare current rotary evaporator product, the utility model has the characteristics of pollution-free, efficient height, this structure still can be used on reation kettle etc. have similar heating cooling requirement's equipment, is adapted to the scale concentration, the drying of field samples such as chemical industry, medicine, environmental protection, draws and retrieves etc. and application scope is wide, and heat utilization is high.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the heating mechanism.

Fig. 3 is an enlarged view of a portion a in fig. 2.

FIG. 4 is a schematic view of the structure of the partition rib.

Fig. 5 is a structural view of the partition ribs and the guide ribs.

Fig. 6 is a top view of fig. 5.

Fig. 7 is a bottom view of fig. 5.

FIG. 8 is a schematic view of a spiral partition rib.

The reference numbers in the figures are: the device comprises a support 1, a driving seat 2, a driver 3, a bevel gear set 4, a rotary sleeve 5, a bearing or shaft sleeve 6, a butt joint 7, a connector 8, a connecting cap 9, an outer heat-insulating sleeve 10, an inner rotary steaming bottle 11, a heating cavity 12, an air inlet 13, an air outlet 14, a sealing sleeve 15, a limiting groove 16, a separating rib 17, an air inlet cavity 18, an air exhaust cavity 19, a guide rib 20, a heating area 21, a total heating area 22, an air inlet cavity guide rib tail end opening 23 and an air exhaust cavity guide rib tail end opening 24; spiral partition ribs 25, a high-temperature air circulating pump 26, a low-temperature air circulating pump 27, an air guide bottle 28, a condenser pipe 29, a cooling pipe 30 and a collecting bottle 31.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example 1: the embodiment aims to provide an air medium heating and cooling rotary evaporator which is mainly used for heating and condensing of the rotary evaporator, and aims to solve the problems that an open water bath or oil bath pot is adopted for heating in the existing equipment, the distribution range of a heat source is limited, the heating efficiency is low and uneven, heat conduction oil is used as a medium for condensing, and unsafe factors exist.

As shown in fig. 1, the rotary evaporator for heating and cooling air medium comprises a bracket 1, a rotary evaporation mechanism and a condensation mechanism; the support 1 has a supporting function, can correspondingly extend out of a plurality of branches and is used for supporting the rotary steaming mechanism and the condensing mechanism, the bottom of the support can be provided with a movable wheel and used as a fixed base of a plurality of controllers, for example, a bracket is arranged on the support, the upper part of the bracket is provided with a tray, and the tray is attached to the lower part of the outer heat-insulating sleeve.

In a specific structure, as shown in fig. 1-3, the rotary steaming mechanism comprises a high-temperature air circulating pump 26, an outer insulating sleeve 10, an inner rotary steaming bottle 11, a rotary sleeve 5, a connecting cap 9 and a driver 3; the slope is provided with drive seat 2 on support 1, and swivel mount 5 passes through bearing or axle sleeve 6 and rotates the setting in drive seat 2 to be connected with the transmission of driver 3, as a drive mode, can overlap on swivel mount 5 and be equipped with bevel gear group 4, driver 3 can be the motor, and rotate through bevel gear group 4 drive swivel mount 5, is provided with interface 7 at swivel mount 5's lower extreme simultaneously, and interface 7 is used for connecting and drives interior rotary evaporation bottle 11 and rotates.

In the embodiment, air is used as a heating medium, in order to contain air, in the embodiment, bottle bodies of internal rotary steaming bottles 11 are arranged in an external thermal insulation sleeve 10 at intervals, bottle mouths of the internal rotary steaming bottles are rotatably connected with the external thermal insulation sleeve through bearings or shaft sleeves 6, the bottle mouths can be butted in butt joints 7, a sealing sleeve 15 is arranged at a port part of the external thermal insulation sleeve 10, a closed heating cavity 12 is formed between the external thermal insulation sleeve 10 and an internal rotator 11, meanwhile, an air inlet 13 and an air outlet 14 which are communicated with the heating cavity 12 are arranged on the external thermal insulation sleeve 10, and the air inlet 13 and the air outlet 14 are respectively communicated with an air outlet and an air inlet of a high-temperature air circulating pump 26 through pipelines.

Meanwhile, the rotation of the outer heat insulation sleeve 10 is avoided, and the lower end of the driving seat 2 is provided with a connector 8; the upper end of the outer heat-insulating sleeve 11 is provided with a limiting groove 16, and the connecting cap 9 is rotatably arranged in the limiting groove 16 and can be in threaded connection with the connector 8; the butt joint port 7 is a conical port or a circular port, when the connecting cap 9 is completely butted with the connector 8, the bottle mouth of the internal rotary steaming bottle 11 is matched with the sleeve and is in top contact with the butt joint port 7, so that in the embodiment, the connecting cap 9 can rotate in the limiting groove 16 and is in threaded internal connection with the connector 8, when the connecting cap 9 is rotated, the connecting cap 9 is connected onto the connector 8 and forces the bottle mouth of the internal rotary steaming bottle 11 to be in top contact with the butt joint port 7, when the rotary sleeve 5 rotates, the internal rotary steaming bottle 11 can be synchronously driven to rotate, the external heat-insulating sleeve 10 is limited and cannot rotate along with the rotation, a pipeline is arranged on the outer side of the external heat-insulating sleeve, and the external heat-insulating sleeve is connected with the high-temperature air circulating pump 26 through a pipeline, so that the high-temperature gas is conveyed and recycled.

The condensing mechanism comprises a gas guide bottle 28, a condensing pipe 29, a collecting bottle 31 and a low-temperature air circulating pump 27; the air guide bottle 29 is fixed on the driving seat 2, the rotary sleeve 5 is rotatably sleeved at the bottom or inside of the air guide bottle 28, the upper part of the air guide bottle 28 is provided with an opening and an air guide opening which can be closed, the air guide opening is connected with the condenser pipe 29 through a pipeline, the condenser pipe 29 is internally coiled with a cooling pipe 30, the upper end and the lower end of the cooling pipe 30 are respectively communicated with an air inlet and an air outlet of the low-temperature air circulating pump 27 through pipelines, and the bottom of the condenser pipe is provided with a collecting bottle 31.

In the heating link, air is used as a medium, and a high-temperature air circulating pump is used for providing high-temperature air, wherein the high-temperature air heats the bottle body of the inner rotary steaming bottle through the closed heating air and circularly enters the high-temperature air circulating pump for supplementing heat to continuously provide a heat source, and the inner rotary steaming bottle can be driven to rotate relative to the outer heat insulation sleeve so as to heat the inner rotary steaming bottle; when the internal rotary steaming bottle rotates under the action of the driver, high-temperature air provided by the high-temperature air circulating pump enters a heating cavity formed between the external heat-insulating sleeve and the internal rotary steaming bottle through the high-temperature air inlet pipe and flows back to the high-temperature air circulating pump from the air outlet to be heated again; the heat preservation material layer that outer insulation cover covers plays the heat preservation effect to the high temperature environment in the cavity, reduces thermal loss, and the high-temperature steam that interior spiral steaming bottle heating produced gets into the condenser through the air guide bottle.

In the condensation link, the embodiment also uses air as a medium, low-temperature air is generated by using a low-temperature air circulating pump, the low-temperature air is guided into a cooling pipe to condense gaseous substances generated by heating, the low-temperature air conveyed by a low-temperature air inlet pipe enters a snake-shaped cooling pipe in the cooling pipe, so that high-temperature steam in the condenser is cooled, and the high-temperature steam flows back into the low-temperature air circulating pump through an air outlet of the cooling pipe.

From this, this embodiment adopts pollution-free and no purchasing cost's air as heating and coolant to at inclosed cavity of heating end design and insulation material layer, thereby the energy loss that significantly reduces, improve equipment's production efficiency compares current rotary evaporator product, the utility model has the characteristics of pollution-free, efficient height, this method still can have similar heating and cooling to require to use on the equipment such as reation kettle, and application scope is wide, and heat utilization is rateed highly.

Example 2: this example is substantially the same as example 1, except that: this embodiment further illustrates the structure of the heating cavity.

In this embodiment, aiming at the structural defect of the heating cavity 12 in embodiment 1, after the high-temperature air enters the heating cavity 12, the high-temperature air is difficult to spread over the whole internal rotation steaming bottle 11, which easily causes the problem of high temperature at the mouth of the internal rotation steaming bottle 11 and low temperature at the lower part of the internal rotation steaming bottle.

Meanwhile, two partition ribs 17 are arranged on the inner wall of the inner shell, the inner sides of the partition ribs 17 are in top contact with and support the inner rotary steaming bottle 11 or have certain gaps, the heating cavity 12 is divided into an air inlet cavity 18 and an air exhaust cavity 19, the air inlet cavity 18 is communicated with the air inlet 13, and the air exhaust cavity 19 is communicated with the air exhaust port 14; the lower portions of the two partition ribs 17 have a gap which communicates the intake chamber and the exhaust chamber.

In this embodiment, due to the blocking of the partition rib 17, the high-temperature gas enters from the air inlet cavity 18, travels downwards along the air inlet cavity 18, and collects at the bottom of the internal-rotation steam bottle, because the air outlet cavity 19 is an air outlet side, the air pressure of the air outlet cavity is relatively low, the high-temperature gas flows back to the air outlet cavity from the air outlet cavity after heating the bottle body from the lower part, and enters the high-temperature circulating air pump through the air outlet to circularly heat the air, and therefore, the air inlet cavity in this embodiment has a higher air temperature and is located at the lower part, and can directly heat the substance in the bottle body, and meanwhile, the backflow gas in the air outlet cavity can also heat the bottle body, and the heat source of the air outlet cavity is wrapped by the outer heat-insulating sleeve, so that the heat loss is small, and the heat source utilization rate is high.

Example 3: this example is substantially the same as example 2, except that: the present embodiment further provides a guide rib 20.

In the present embodiment, guide ribs 20 are provided between the partition ribs 17, the inner sides of the guide ribs abut against and support the inner spin steamer and divide the air intake chamber and the air discharge chamber into a plurality of heating zones 21, and gaps are provided between the lower portions of the guide ribs 20, which form a total heating zone 22 at the bottom of the inner spin steamer.

The upper portion of partition rib 17 is total air inlet portion in this embodiment, forms a plurality of heating zones 21 between the guide rib 20, and high-temperature gas is for getting into from total air inlet portion to from a plurality of heating zones 21 guide respectively, thereby enable high-temperature gas distribution more with even, avoid interior rotatory steam bottle uneven problem appearance that is heated.

Example 4: this example is substantially the same as example 3, except that: the present embodiment further explains the structure of the total heating area 22.

The general heating zone 22 in this embodiment is circular in shape, the two partition ribs 17 are symmetrically arranged, i.e. the inlet chamber and the exhaust chamber are equally large, and the end opening 23 of the adjacent inlet chamber guide rib is larger than the end opening 24 of the adjacent exhaust chamber guide rib.

The structure in this embodiment, the high-temperature gas gets into the efficiency ratio exhaust efficiency height of the total zone of heating to enable the total zone of heating and keep higher temperature, and interior rotatory steam bottle 11 is mostly the slope mode, and liquid also corresponds in the bottle with the total zone of heating correspond, thereby the utilization heat source that can be abundant improves heating efficiency.

Example 5: this example is substantially the same as example 1, except that: the present embodiment further illustrates the condensing mechanism.

The condenser pipe 29 in this embodiment is vertically provided with two sets, and the cooling tube in two condenser pipes 29 communicates from top to bottom, and low temperature air circulating pump's gas vent and the cooling tube intercommunication of lower part, its air inlet and the cooling tube intercommunication on upper portion.

Example 6: this example is substantially the same as example 1, except that: the present embodiment provides a spiral partition rib for the disc.

In the embodiment, two spiral partition ribs 25 are arranged in the outer heat-insulating sleeve at intervals, the spiral partition ribs 25 are respectively provided with an air inlet cavity or an air outlet cavity inside, the spiral partition ribs are respectively provided with an air outlet cavity or an air inlet cavity outside correspondingly, and then a spirally arranged channel is formed, so that high-temperature gas can be uniformly distributed outside the bottle body, the gas is guided and uniform, the high-temperature gas can run along a preset direction, the utilization rate of the high-temperature gas is improved, and the guide ribs can be correspondingly arranged between the partition ribs to achieve the purpose of partitioning.

Claims (10)

1. A rotary evaporator for heating and cooling an air medium comprises a bracket, a rotary evaporation mechanism and a condensation mechanism; the method is characterized in that: the rotary steaming mechanism comprises a high-temperature air circulating pump, an outer heat-insulating sleeve, an inner rotary steaming bottle, a rotary sleeve, a connecting cap, a rotary sleeve and a driver; the rack is provided with a driving seat, the rotary sleeve is rotatably arranged in the driving seat and is in transmission connection with the driver, the lower end of the rotary sleeve is provided with a butt joint port, the lower end of the driving seat is provided with a connector, the bottle bodies of the internal rotary steaming bottles are arranged in the external heat-insulating sleeve at intervals, the bottle mouths of the internal rotary steaming bottles are rotatably connected with the external heat-insulating sleeve through bearings or shaft sleeves, and the bottle mouths can be in butt joint in the butt joint port; the upper end of the outer heat-insulating sleeve is provided with a limiting groove, and the connecting cap is rotatably arranged in the limiting groove and can be in threaded connection with the connecting head; a sealing sleeve is arranged at the port of the outer heat-insulating sleeve, so that a closed heating cavity is formed between the outer heat-insulating sleeve and the inner rotator, an air inlet and an air outlet which are communicated with the heating cavity are arranged on the outer heat-insulating sleeve, and the air inlet and the air outlet are respectively communicated with an air outlet and an air inlet of the high-temperature air circulating pump through pipelines; the condensing mechanism comprises a gas guide bottle, a condensing pipe, a collecting bottle and a low-temperature air circulating pump; the air guide bottle is fixed on driving the seat, the swivel sleeve rotates the suit in the bottom of air guide bottle, and the upper portion of air guide bottle is provided with opening and air guide port that can seal, and the air guide port is connected with the condenser pipe through the pipeline, and the condenser pipe inner disc is equipped with the cooling tube, the upper end and the lower extreme of cooling tube are respectively through the air inlet and the gas vent intercommunication of pipeline with low temperature air circulating pump, are provided with the receiving flask in the bottom of condenser pipe.

2. An air media heated cooled rotary evaporator according to claim 1 further comprising: the outer heat-insulating sleeve comprises an outer shell, a heat-insulating layer and an inner shell, wherein the inner shell and the outer shell are arranged at intervals, and the heat-insulating layer is arranged between the inner shell and the outer shell.

3. An air media heated cooled rotary evaporator according to claim 2 where: the inner wall of the inner shell is provided with two partition ribs, the inner sides of the partition ribs are in top contact with and support the inner rotary steaming bottle, the heating cavity is divided into an air inlet cavity and an air outlet cavity, the air inlet cavity is communicated with the air inlet, and the air outlet cavity is communicated with the air outlet; a gap exists between the lower portions of the two partition ribs, and the gap communicates the air intake chamber with the air discharge chamber.

4. An air media heated cooled rotary evaporator according to claim 3 where: the guide ribs are arranged among the separation ribs, the inner sides of the guide ribs are in top contact with and support the internal rotary steaming bottle, the air inlet cavity and the air exhaust cavity are divided into a plurality of heating zones, and gaps exist among the lower parts of the guide ribs, so that a total heating zone is formed at the bottom of the internal rotary steaming bottle.

5. An air media heated cooled rotary evaporator according to claim 4 where: the two partition ribs are symmetrically arranged, and the openings at the tail ends of the adjacent air inlet cavity guide ribs are larger than the openings at the tail ends of the adjacent air exhaust cavity guide ribs.

6. An air media heated cooled rotary evaporator according to claim 4 where: the overall heating zone is circular in shape.

7. An air media heated cooled rotary evaporator according to claim 1 further comprising: the butt joint mouth is a taper mouth or a round mouth, and when the connecting cap is completely butted with the connector, the bottle mouth of the internal rotation steaming bottle is matched with the sleeve and is in top contact with the butt joint mouth.

8. An air media heated cooled rotary evaporator according to claim 1 further comprising: the condenser pipe is provided with two sets along vertical, and the cooling tube in two condenser pipes communicates from top to bottom, and low temperature air circulating pump's gas vent and the cooling tube intercommunication of lower part, its air inlet and the cooling tube intercommunication on upper portion.

9. An air media heated cooled rotary evaporator according to claim 1 further comprising: the support is provided with a bracket, the upper part of the bracket is provided with a tray, and the tray is attached to the lower part of the outer heat-insulating sleeve.

10. An air media heated cooled rotary evaporator according to claim 1 further comprising: the rotating sleeve is in transmission connection with the driver through a bevel gear set.

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