阅读说明：本技术 一种自供热节水型智能旋转蒸发仪 (Self-heating water-saving intelligent rotary evaporator ) 是由 温淑瑶 李闻达 于 2019-11-12 设计创作，主要内容包括：本发明涉及蒸发设备技术领域,特别地,涉及一种旋转蒸发仪,具体涉及一种可自供热的节水型智能旋转蒸发仪。本发明所述能自供热的节水型智能旋转蒸发仪,以现有旋转蒸发仪的结构为基础,在原蒸馏瓶外增设静止的夹套,使所述蒸馏瓶与夹套间形成流体通道,利用与原旋转蒸发仪的蒸汽出料口相连通的蒸汽压缩机将蒸发的气态物质压缩,利用经过压缩的馏分和待蒸馏样品显著温差进行热交换,利用自身蒸发潜热增加待蒸馏液的热焓值,实现对待蒸馏样品的持续加热,进而完成蒸馏过程。本发明所述旋转蒸发仪不仅省去了原旋转蒸发仪的冷凝系统组件,而且节约了冷却水、冰块、干冰等致冷剂,大大节约了水资源,还省去了水浴(油)锅以及升降系统组件,降低能耗。(The invention relates to the technical field of evaporation equipment, in particular to a rotary evaporator, and particularly relates to a self-heating water-saving intelligent rotary evaporator. The invention relates to a water-saving intelligent rotary evaporator capable of self-supplying heat, which is characterized in that a static jacket is additionally arranged outside an original distillation flask on the basis of the structure of the existing rotary evaporator, a fluid channel is formed between the distillation flask and the jacket, a vapor compressor communicated with a vapor discharge port of the original rotary evaporator is used for compressing evaporated gaseous substances, heat exchange is carried out by utilizing the obvious temperature difference between compressed fractions and a sample to be distilled, the latent heat of evaporation of the vapor compressor is utilized to increase the enthalpy value of the liquid to be distilled, the continuous heating of the sample to be distilled is realized, and the distillation process is further completed. The rotary evaporator not only saves the condensation system component of the original rotary evaporator, but also saves the refrigerants such as cooling water, ice blocks, dry ice and the like, greatly saves water resources, also saves a water bath (oil) pot and a lifting system component, and reduces energy consumption.)

1. The utility model provides a from water conservation type intelligence rotary evaporator that supplies heat which characterized in that includes: comprises a bracket (1), wherein a detachable distillation flask (2) is fixed on the bracket (1); the distillation flask (2) is driven to rotate by a rotating motor (3);

the outer side of the distillation flask (2) is sleeved with a coaxially arranged steam jacket (10), and the steam jacket (10) is detachably fixed at a bearing shell (13) of the rotating motor (3) and does not rotate along with the distillation flask (2);

a feeding pipe (5) for feeding the to-be-distilled liquid and a concentrated liquid discharging pipe (21) for discharging the concentrated liquid after distillation are respectively arranged in the distillation channel (4) of the distillation bottle (2); a discharge hole (6) for discharging evaporated gaseous substances is formed in the side wall of the distillation channel (4);

the discharge hole (6) is communicated with a steam inlet (8) of a steam compressor (7), gaseous substances formed by evaporation are compressed into high-temperature fluid through the steam compressor (7), the high-temperature fluid flows out through a liquid outlet (9) of the steam compressor (7) and enters a fluid channel (46) formed between the distillation flask (2) and the steam jacket (10), heat exchange between the high-temperature fluid and the distillate to be distilled is realized at the outer wall of the distillation flask (2), and heating and distillation of the distillate to be distilled are completed.

2. The self-heating water-saving intelligent rotary evaporator according to claim 1, characterized in that:

a fluid inlet (14) and a fluid outlet (15) are respectively formed on the outer wall of the steam jacket (10);

the fluid inlet (14) is communicated with the liquid outlet (9) of the vapor compressor (7) through a fluid inlet pipe (16) to realize the inlet of the high-temperature fluid;

and the fluid outlet (15) is connected with a fluid drain pipe (19) to realize the discharge of the fluid after heat exchange.

3. The self-heating water-saving intelligent rotary evaporator according to claim 1 or 2, characterized in that a jacket cleaning liquid inlet pipe (17), a jacket cleaning liquid outlet pipe (20) and a jacket vent pipe (18) are respectively arranged on the outer wall of the steam jacket (10).

4. The self-heating water-saving intelligent rotary evaporator according to claim 3, characterized in that:

the fluid liquid inlet pipe (16), the jacket cleaning liquid inlet pipe (17) and the jacket vent pipe (18) are arranged at the top area of the working position of the steam jacket (10);

the fluid drain (19) and the jacket cleaning drain (20) are arranged in the bottom region of the operating position of the steam jacket (10).

5. A self-heating water-saving intelligent rotary evaporator according to any one of claims 1-4, characterized in that the steam jacket (10) comprises a sleeve part (11) which can be sleeved with the bearing housing (13) and a spherical crown part (12) which is matched with the shape of the distillation flask (2);

the sleeve portion (11) and the spherical crown portion (12) are connected to each other in a sealed snap-fit manner.

6. The self-heating water-saving intelligent rotary evaporator according to any one of claims 1-4, wherein the steam jacket (10) comprises a first buckling part (37) and a second buckling part (38) which are symmetrical along the central axis of the steam jacket, and the first buckling part (37) and the second buckling part (38) are connected with each other to realize a sealed buckling.

7. The self-heating water-saving intelligent rotary evaporator according to any one of claims 1-6, characterized in that a distillation flask vent pipe (32) for realizing the communication of the distillation flask (2) with the atmosphere, and a cleaning solution feed pipe (22) and a cleaning solution discharge pipe (23) extending into the distillation flask (2) for realizing the feeding and discharging of the cleaning solution in the distillation flask (2) are further arranged in the distillation channel (4).

8. The self-heating water-saving intelligent rotary evaporator according to any one of claims 1 to 7, wherein:

an electric heating belt (24) is wound on the outer side of the feeding pipe (5) and is used for starting the vehicle to heat when the temperature of the distillate is too low; a glass fiber tape (25) is arranged on the outer layer of the electric heating tape (24) to realize heat insulation and fixation of the electric heating tape (24), and a heating temperature sensor (26) probe is arranged between the electric heating tape (24) and the feeding pipe (5);

the discharge port (6) is connected with the steam compressor (7) through a steam pipeline (27), and a steam temperature sensor (28) and/or a steam pressure sensor (29) are/is arranged at the steam pipeline (27).

9. The self-heating water-saving intelligent rotary evaporator according to claim 8, wherein the feeding pipe (5), the concentrated solution discharging pipe (21), the cleaning solution feeding pipe (22), the cleaning solution discharging pipe (23), the fluid inlet pipe (16), the fluid discharge pipe (19), the jacket cleaning inlet pipe (17) and the jacket cleaning discharge pipe (20) are all connected with an intelligent metering pump (30), and the intelligent metering pump (30) is used for controlling accurate quantitative liquid delivery in sequence.

10. The self-heating water-saving intelligent rotary evaporator according to claim 9, wherein the rotary motor (3), the steam compressor (7), the jacket vent pipe (18), the electric heating belt (24), the intelligent metering pump (30), the heating temperature sensor (26), the steam temperature sensor (28), the steam pressure sensor (29) and the distillation flask vent pipe (32) are all in communication connection with an intelligent control device (31), the distillation is completed under the control of the intelligent control device (31), and respective working parameters can be set according to requirements.

Technical Field

The invention relates to the technical field of evaporation equipment, in particular to a rotary evaporator, and particularly relates to a self-heating water-saving intelligent rotary evaporator.

Background

The rotary evaporator is extraction experimental equipment for carrying out reduced pressure distillation concentration on materials, is widely applied to experiments of scale concentration, drying, extraction recovery and the like of samples, and is particularly used for quickly distilling a large amount of solvents. The conventional rotary evaporator generally comprises a vacuum pumping device, a heating device, a condensing device, a rotating device and the like. The principle of the rotary evaporator is mainly that under the control of electronic equipment, a flask is rotated at a constant speed under the most suitable rotating speed to enable a solvent to form a film, the evaporation area is increased, the evaporation flask is in a negative pressure state through a vacuum pump, the evaporation flask is placed in a water bath kettle or an oil bath kettle to be heated at a constant temperature while rotating, the heating temperature can be close to the boiling point of the solvent, so that the solution in the flask is heated, diffused and evaporated under the negative pressure, and the rapid evaporation of the solvent is realized.

Disclosure of Invention

The invention provides a self-heating water-saving intelligent rotary evaporator, which solves the problems that in the prior art, a rotary evaporator wastes refrigerant and cannot be used in a water-deficient environment.

In order to achieve the above object, the present invention provides a self-heating water-saving intelligent rotary evaporator, comprising: comprises a bracket, wherein a detachable distillation flask is fixed on the bracket; the distillation flask is driven to rotate by a rotating motor;

the outer side of the distillation flask is sleeved with a coaxially arranged steam jacket, and the steam jacket is detachably fixed at a bearing shell of the rotating motor and does not rotate along with the distillation flask;

a feeding pipe for feeding the distillate to be distilled and a concentrated solution discharging pipe for discharging the concentrated solution after distillation are arranged in the distillation channel of the distillation bottle respectively; a discharge hole for discharging gaseous substances formed by evaporation is formed in the side wall of the distillation channel;

the discharge hole is communicated with a steam inlet of a steam compressor, gaseous substances formed by evaporation are compressed into high-temperature fluid through the steam compressor, the high-temperature fluid flows out through a liquid outlet of the steam compressor and enters a fluid channel formed between the distillation flask and the steam jacket, heat exchange between the high-temperature fluid and the liquid to be distilled is realized at the outer wall of the distillation flask, and heating and distillation of the liquid to be distilled are completed.

Specifically, the water-saving intelligent rotary evaporator of self-heating:

a fluid inlet and a fluid outlet are respectively formed on the outer wall of the steam jacket;

the fluid inlet is communicated with the liquid outlet of the vapor compressor through a fluid inlet pipe to realize the entrance of the high-temperature fluid;

and the fluid outlet is connected with a fluid drain pipe to discharge the fluid after heat exchange.

Specifically, the self-heating water-saving intelligent rotary evaporator is characterized in that a jacket cleaning liquid inlet pipe, a jacket cleaning liquid discharge pipe and a jacket vent pipe are respectively arranged on the outer wall of the steam jacket.

Specifically, the water-saving intelligent rotary evaporator of self-heating:

the fluid liquid inlet pipe, the jacket cleaning liquid inlet pipe and the jacket vent pipe are arranged in the top area of the steam jacket working position;

the fluid drain pipe and the jacket cleaning drain pipe are arranged in the bottom area of the working position of the steam jacket.

Specifically, the steam jacket comprises a sleeve part which can be sleeved with the bearing shell and a spherical crown part which is matched with the shape of the distillation flask;

the sleeve part and the spherical crown part are connected with each other to realize closed buckling.

Concretely, from the rotatory evaporimeter of heat supply water-saving type intelligence, steam jacket includes along first buckling parts and the second buckling parts of its central axis symmetry, first buckling parts and second buckling parts are connected each other and are realized airtight lock.

Concretely, the rotatory evaporimeter of self-heating water-saving type intelligence, still be provided with in the distillation passageway and be used for realizing the retort breather pipe that retort and atmosphere are linked together, and stretch into be used for realizing the feeding of the interior washing liquid of retort and the washing liquid inlet pipe and the washing liquid row of row material pipe of the feeding of row material in the retort respectively in the retort.

Specifically, the water-saving intelligent rotary evaporator of self-heating:

an electric heating belt is wound on the outer side of the feeding pipe and is used for starting the heating when the temperature of the distillate is too low; the outer layer of the electric heating belt is provided with a glass fiber belt to realize heat insulation and fixation of the electric heating belt, and a heating temperature sensor probe is arranged between the electric heating belt and the feeding pipe;

the discharge port is connected with the steam compressor through a steam pipeline, and a steam temperature sensor and/or a steam pressure sensor are/is arranged at the steam pipeline.

Concretely, self-heating water-saving type intelligent rotary evaporator, inlet pipe, concentrate discharge pipe, washing liquid inlet pipe, washing liquid discharge pipe, fluid inlet pipe, fluid discharge pipe, jacket washing inlet pipe and jacket washing discharge pipe are all connected with intelligent metering pump, respectively by accurate ration of intelligent metering pump control is according to the preface completion liquid transport.

Concretely, rotatory evaporimeter of self-heating water-saving type intelligence, rotating electrical machines, vapor compressor, jacket breather pipe, electrical heating area, intelligent measuring pump, heating temperature sensor, steam pressure sensor and retort breather pipe all are connected with the communication of intelligent control equipment, by distillation is accomplished in the control of intelligent control equipment to can set for working parameter separately as required.

The invention relates to a self-heating water-saving intelligent rotary evaporator, which is characterized in that a static steam jacket is additionally arranged outside an original distillation flask on the basis of the structure of the existing rotary evaporator, so that a fluid channel capable of exchanging heat is formed between the distillation flask and the steam jacket, meanwhile, a steam compressor communicated with a steam discharge port of the rotary evaporator is used for compressing evaporated gaseous substances, heat exchange is carried out by utilizing the obvious temperature difference between compressed fractions and a sample to be distilled, the enthalpy value of the liquid to be distilled is increased by utilizing the self-evaporation latent heat, the continuous heating of the sample to be distilled is realized, and the distillation process is further completed. The rotary evaporator not only saves the condensing system component of the original rotary evaporator, but also saves the refrigerants such as cooling water, ice blocks, dry ice and the like, greatly saves water resources, also saves a water bath (oil) pot and a lifting system component, and reduces energy consumption and use cost.

The invention uses a control panel or a computer to intelligently control each distillation link, and uses a multi-head precise plunger metering pump to control each liquid inlet and outlet, thereby being particularly suitable for water-deficient environments and environments with higher requirements on energy-saving maintenance.

Drawings

FIG. 1 is a schematic structural diagram of a self-heating water-saving intelligent rotary evaporator according to the present invention;

FIG. 2 is a schematic diagram of a steam jacket according to the present invention;

FIG. 3 is a schematic view of another construction of the steam jacket according to the present invention;

FIG. 4 is a front view of the connection structure of the steam jacket and the bearing housing according to the present invention;

FIG. 5 is a right side view of the connection structure of the steam jacket and the bearing housing according to the present invention;

labeled as: 1-bracket, 2-distillation flask, 3-rotating motor, 4-distillation channel, 5-feeding pipe, 6-discharging port, 7-steam compressor, 8-steam inlet, 9-liquid outlet, 10-steam jacket, 11-sleeve part, 12-spherical crown part, 13-bearing shell, 14-fluid inlet, 15-fluid outlet, 16-fluid inlet pipe, 17-jacket cleaning inlet pipe, 18-jacket vent pipe, 19-fluid discharge pipe, 20-jacket cleaning discharge pipe, 21-concentrated liquid discharge pipe, 22-cleaning liquid feeding pipe, 23-cleaning liquid discharge pipe, 24-electric heating belt, 25-glass fiber belt, 26-heating temperature sensor, 27-steam pipe, 28-steam temperature sensor, 29-steam pressure sensor, 30-intelligent metering pump, 31-intelligent control equipment, 32-distillation flask vent pipe, 33-jacket locking nut, 34-jacket flange sealing ring, 35-jacket connecting flange, 36-jacket opening clamp, 37-first buckling part, 38-second buckling part, 39-circular arc clamping groove, 40-sealing ring, 41-tubular handle end, 42-fluid inlet plug, 43-fluid outlet plug, 44-feeding channel opening plug, 45-flange and 46-fluid channel.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As the structure shown in figure 1, the self-heating water-saving intelligent rotary evaporator of the invention comprises: the distillation bottle comprises a support 1, wherein a detachable distillation bottle 2 is fixed on the support 1, and the distillation bottle 2 is used for containing a to-be-distilled liquid. The bracket 1 is also provided with a rotating motor 3 for controlling the rotation of the distillation flask 2, a control component for controlling the rotating speed and the heating temperature, and the like.

As shown in the structure of fig. 1, a feeding pipe 5 for feeding the distillate to be distilled and a concentrated solution discharging pipe 21 for discharging the concentrated solution after distillation are respectively arranged in the distillation channel 4 of the distillation flask 2; and a discharge port 6 for discharging evaporated gaseous substances is formed at a side wall of the distillation passage 4.

As shown in fig. 1, the self-heating water-saving intelligent rotary evaporator is characterized in that a steam jacket 10 which is coaxially arranged and has a shape matched with that of the distillation flask 2 is further sleeved on the outer side of the distillation flask 2, the steam jacket 10 is detachably fixed on a bearing housing 13 of the rotating motor 3, and the steam jacket 10 keeps a static state and does not rotate along with the distillation flask 2 in the distillation process. A fluid passage 46 for fluid to pass and exchange heat is formed between the side wall of the distillation flask 2 and the side wall of the steam jacket 10.

As shown in fig. 1, the self-heating water-saving intelligent rotary evaporator is further provided with a vapor compressor 7, a vapor inlet 8 of the vapor compressor 7 is communicated with the discharge port 6 through a vapor pipe 27, a gaseous substance evaporated from the distillation flask 2 enters the vapor compressor 7 through the vapor pipe 27 after passing through the distillation channel 4 to be compressed into a high-temperature fluid, the high-temperature fluid flows out through a liquid outlet 9 of the vapor compressor 7 and enters a fluid channel 46 formed between the distillation flask 2 and the vapor jacket 10, and heat exchange between the high-temperature fluid and a to-be-distilled liquid is realized at an outer wall of the distillation flask 2, so that heating and distillation of the to-be-distilled liquid are completed. And a steam temperature sensor 28 and/or a steam pressure sensor 29 are/is further arranged at the steam pipeline 27 and used for monitoring the temperature and the pressure of the steam of the distillation system at any time so as to control the conduction of the steam.

Specifically, in the rotary evaporator of the present invention, the vapor compressor 7 may be a roots-type compressor, a centrifugal compressor, a piston-type compressor, a screw-type compressor, or a vane-type compressor, and as an optional option, the vapor compressor may be a variable-frequency compressor.

In the rotary evaporator, steam entering the steam compressor 7 passes through an embedded droplet separator arranged in the rotary evaporator to remove part of liquid in the steam, and then enters the steam compressor. After the steam at the low temperature is compressed by the compressor, the temperature and the pressure of the steam are both improved, the enthalpy value is also increased, the steam enters the fluid passage 46 to exchange heat with the liquid to be distilled in the distillation flask 2, and meanwhile, the high-temperature fluid is condensed, so that the latent heat of the steam is fully utilized. Except starting the whole device, the steam formed by evaporation in the whole distillation process is compressed by a compressor, the pressure and the temperature are increased, the enthalpy value is correspondingly increased, and then the steam is conveyed into a fluid channel to be used as heating steam, so that the feed liquid is kept in a boiling state, and the heating steam is condensed into water. Therefore, the latent heat of the steam which is originally discarded is fully utilized, the latent heat is recovered, and the heat efficiency is improved.

As shown in fig. 1, the self-heating water-saving intelligent rotary evaporator has a fluid inlet 14 and a fluid outlet 15 formed on the outer wall of the steam jacket 10; the fluid inlet 14 is communicated with the liquid outlet 9 of the vapor compressor 7 through a fluid inlet pipe 16 to realize the inlet of the high-temperature fluid, and the fluid outlet 15 is connected with a fluid discharge pipe 19 to realize the discharge of the fluid after heat exchange. The high-temperature fluid entering the fluid channel 46 is directly sprayed to the outer wall of the distillation flask 2 under the action of gravity, and in the rotation process of the distillation flask, the high-temperature fluid exchanges heat with the liquid to be distilled in the distillation flask 2 to heat and distill the liquid to be distilled, and the fluid after heat exchange and temperature reduction is discharged through the fluid outlet 15 and the fluid drain pipe 19 and can be collected.

In order to facilitate the cleaning of the steam jacket 10 and the fluid channel 46 after the distillation is completed, a jacket cleaning liquid inlet pipe 17, a jacket cleaning liquid outlet pipe 20 and a jacket vent pipe 18 are respectively arranged on the side wall of the steam jacket 10 of the rotary evaporator. The cleaning liquid inlet pipe 17 and the jacket cleaning liquid outlet pipe 20 are used for feeding and discharging cleaning liquid respectively, the jacket vent pipe 18 is used for ventilating the fluid channel 46, and the communication and the blockage of the fluid channel 46 and the atmosphere are controlled by a switch arranged on the jacket vent pipe 18. The cleaning agent is prepared from conventional pure water or ethanol solvent.

In order to further ensure the tightness of the entire device, the rotary evaporator is further provided with a fluid inlet plug 42 and a fluid outlet plug 43 at the fluid inlet 14 and the fluid outlet 15, respectively. The fluid inlet plug 42 is optionally made of the same material as the fluid inlet pipe 16 and is connected with the fluid inlet pipe in a sealing way; the fluid outlet plug 43 may optionally be of the same material as the fluid drain 19 and be sealingly connected thereto; the fluid inlet pipe 16 and the fluid outlet pipe 19 may be made of glass or polytetrafluoroethylene.

In order to further ensure the full utilization of the heat of the fluid, such as the self-heating water-saving intelligent rotary evaporator shown in fig. 1, the fluid inlet pipe 16, the jacket cleaning inlet pipe 17 and the jacket vent pipe 18 are preferably arranged in the top region of the working position of the steam jacket 10, and more preferably at the highest point of the working position (i.e. the highest point of the vertical position); and the fluid drain 19 and the jacket purge drain 20 are located in the bottom region of the steam jacket 10 in the operating position, more preferably at the lowest point of the operating position (i.e., the lowest point in the vertical position).

As shown in FIG. 2, the steam jacket 10 according to the present invention has a shape of a flask with a round bottom like the distillation flask 2. In order to facilitate the installation of the steam jacket 10, the steam jacket 10 of the present invention is configured as a two-part structure that can be tightly fastened, that is, the steam jacket comprises a sleeve part 11 that can be sleeved with the bearing housing 13 and a spherical cap part 12 that is adapted to the shape of the distillation flask 2; the sleeve portion 11 and the spherical crown portion 12 are connected to each other to achieve a hermetic snap fit. As shown in fig. 2, the sleeve portion 11 includes a tubular portion connected to the bearing housing 13 and a hemispherical crown portion, and the spherical crown portion 12 is a hemispherical crown portion. The semi-spherical crown part of the sleeve part 11 and the semi-spherical crown part of the spherical crown part 12 are of structures with flanges, the structures can be in flange connection after being tightly buckled with each other, a corrosion-resistant sealing gasket (made of selectable polytetrafluoroethylene) is clamped between the buckling parts, and the buckling parts are fixed through bolts, so that the distillation flask 2 can be conveniently disassembled and assembled.

As shown in the structure of fig. 2, the material of the steam jacket 10 can be glass, teflon or organic glass. In order to facilitate observing the distillation process, the steam jacket 10 may be configured as a partially transparent glass structure, that is, the sleeve portion 11 of the steam jacket 10 is made of glass, and the spherical crown portion 12 is made of teflon; or conversely, the sleeve portion 11 of the steam jacket 10 is made of teflon, and the spherical crown portion 12 is made of glass. And if the temperature of the high-temperature fluid after compression exceeds 95 ℃ or contains concentrated acid, the steam jacket 10 is preferably made of glass.

For the convenience of installation of the steam jacket 10 and the rotating electrical machine bearing housing 13, as shown in fig. 1, the outer surface of one end of the bearing housing 13 close to the distillation flask 2 is provided with a thread, a jacket locking nut 33 is arranged outside the thread, a jacket connecting flange 35 is fixed by the jacket locking nut 33, a jacket flange sealing ring 34 is arranged between the bearing housing 13 and the jacket connecting flange 35, and the jacket flange sealing ring 34 may be made of polytetrafluoroethylene. The jacket connecting flange 35 may be hermetically connected to the jacket portion 11 of the steam jacket 10 by ground glass, and may be fixed by a jacket opening clamp 36. Alternatively, the sleeve portion 11 of the steam jacket 10 may be directly screwed to the bearing housing 13 and then directly fixed by a locking band.

As shown in FIG. 3, another structure of the steam jacket 10 is provided, and the steam jacket 10 has a shape of a flask with a round bottom like the distillation flask 2. In order to facilitate the installation of the steam jacket 10, the steam jacket 10 of the present invention is configured as a two-part structure capable of being tightly fastened, that is, the steam jacket includes a first fastening portion 37 and a second fastening portion 38 which are approximately of a bailer-shaped structure and are symmetrical along a central axis thereof, and the first fastening portion 37 and the second fastening portion 38 are connected to each other to realize a sealed fastening. First buckling parts 37 and second buckling parts 38 are the structures that have the turn-ups, can carry out flange joint after closely the lock each other, and accompany corrosion-resistant sealed pad (optional polytetrafluoroethylene material) in the middle of the lock part, and through the bolt fastening, this lock structure is convenient for the dismouting of retort 2.

For the installation structure convenient for the steam jacket 10 and the rotating electrical machine bearing housing 13, as shown in fig. 4, an arc-shaped slot 39 is provided at one end of the bearing housing 13 of the rotating electrical machine close to the distillation flask 2, the tubular handle ends 41 of the first buckling part 37 and the second buckling part 38 are respectively fixed by the arc-shaped slot 39, a polytetrafluoroethylene sealing ring 40 is provided in the arc-shaped slot 39, and the sealing ring 40 is used for sealing the steam jacket 10.

As an alternative structure, the outer surface of the end of the bearing housing 13 close to the retort 2 is provided with a thread structure, and the insides of the tubular handle ends 41 of the first fastening part 37 and the second fastening part 38 are also provided with correspondingly adapted thread structures, the tubular handle ends 41 of the first fastening part 37 and the second fastening part 38 are fixed at the outer wall of the bearing housing 13 of the rotating electrical machine through thread connection, and the fixing part is sealed by a teflon sealing tape to realize the installation and the fixation of the steam jacket 10.

Similarly, the steam jacket 10 may be made of glass, teflon or organic glass, and for the convenience of observing the distillation process, the steam jacket 10 may be configured as a partially transparent glass structure, that is, the first fastening portion 37 or the second fastening portion 38 may be configured as a glass material or an organic glass material, and the other portion is made of teflon. And if the temperature of the high-temperature fluid after compression exceeds 95 ℃ or contains concentrated acid, the steam jacket 10 is preferably made of glass.

In order to facilitate cleaning of the distillation flask 2 after distillation, as shown in fig. 1, the self-heating water-saving intelligent rotary evaporator is further provided with a cleaning liquid feeding pipe 22 and a cleaning liquid discharging pipe 23 in the distillation channel 4, and the cleaning liquid feeding pipe 22 and the cleaning liquid discharging pipe 23 extend into the distillation flask 2 and are used for feeding and discharging a cleaning agent respectively. The cleaning agent can be selected from common pure water or ethanol solvent. In addition, a distillation flask vent pipe 32 is arranged in the distillation channel 4 and is used for realizing the communication between the distillation flask 2 and the atmosphere. The distillation flask vent pipe 32 is provided with a switch for controlling the communication and blocking between the interior of the distillation flask 2 and the atmosphere.

As shown in fig. 1, the self-heating water-saving intelligent rotary evaporator, one end of the distillation channel 4 far away from the distillation flask 2 is provided with a feed channel plug 44, and the feed channel plug 44 is used for supporting six pipelines in total, namely a feed pipe 5, a concentrated solution discharge pipe 21, a cleaning solution feed pipe 22, a cleaning solution discharge pipe 23, a distillation flask vent pipe 32 and a steam pipeline 27, and isolating the inside of the distillation flask 2 from the atmosphere. The feeding channel opening plug 44 is connected with the flange 45 in a sealing mode through a glass ground opening, the flange 45 is fixed to one end, far away from the distillation flask 2, of the rotary motor bearing shell 13 through a locking nut, and a polytetrafluoroethylene sealing ring is arranged between the flange 45 and the rotary motor bearing shell 13.

In order to further enhance the distillation effect of the whole device, the rotary evaporator of the invention is preferably subjected to a certain heating treatment before the distillate enters the distillation flask 2. According to the structure shown in fig. 1, an electric heating belt 24 is wrapped on the outer side of the feeding pipe 5 and used for starting and heating when the temperature of distillate is too low, so that subsequent distillation can be completed more quickly; the outer layer of electric heating belt 24 then is provided with glass fiber tape 25, realizes electric heating belt 24's thermal-insulated and fixed to further, electric heating belt 24 with be provided with heating temperature sensor 26 probe between the inlet pipe 5 for monitoring heating temperature.

As shown in fig. 1, in order to further control the metering of the whole distillation process, the feed pipe 5, the concentrated solution discharge pipe 21, the cleaning solution feed pipe 22, the cleaning solution discharge pipe 23, the fluid inlet pipe 16, the fluid discharge pipe 19, the jacket cleaning inlet pipe 17, and the jacket cleaning solution discharge pipe 20 are all connected to an intelligent metering pump 30, and the intelligent metering pump 30 is used to control the opening and closing of each pipeline so as to control the feeding and discharging of each pipeline, thereby accurately and quantitatively completing the liquid delivery in sequence. The intelligent metering pump 30 is preferably an intelligent multi-head precision plunger metering pump.

As shown in fig. 1, in order to further realize the automatic control of the whole distillation process, the rotary motor 3, the vapor compressor 7, the electric heating belt 24, the intelligent metering pump 30, the heating temperature sensor 26, the vapor temperature sensor 28, the vapor pressure sensor 29, the jacket vent pipe 18 switch and the retort vent pipe 32 switch are all in communication connection with the intelligent control device 31, and the distillation links are completed under the intelligent control of a corresponding control panel or a computer, and each working parameter can be set as required.

The rotary evaporator has the advantages of compact structure of the selected evaporation equipment, small floor area, small required space, and no need of a cooling system, and can achieve the effects of saving investment and better energy saving for the existing factories which need to expand the evaporation equipment, have insufficient steam supply and water supply capacity and insufficient sites, and particularly for the occasions which need to condense freezing water for low-temperature evaporation.

The above embodiments of the present invention are described in detail, and the principle and the implementation of the present invention are explained by applying specific embodiments, and the above description of the embodiments is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.