CN212941475U

CN212941475U - Magnetic stirring short-distance evaporator

Info

Publication number: CN212941475U
Application number: CN202021551005.0U
Authority: CN
Inventors: 薄旭峰; 李喜瑞
Original assignee: Zhengzhou Keda Machinery Equipment Co ltd
Current assignee: Zhengzhou Keda Machinery Equipment Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-13
Anticipated expiration: 2030-07-30

Abstract

The utility model provides a magnetic stirring short distance evaporimeter has solved the rotary evaporator and has made the higher problem of fault rate at dynamic processes such as rotation, lift that the evaporation process constantly goes on. The utility model adopts the magnetic stirring instrument to seal and stir the mixed medicine, and saves the connecting interface of the stirring device and the evaporation bottle, so that the sealing performance of the evaporation bottle is greatly improved; the outer side of the evaporation bottle is provided with a temperature detector for monitoring the temperature in the evaporation bottle in real time, and the temperature detector is matched with an electric heating sleeve and a temperature display controller of an electric heating automatic control device, so that the automatic heating and temperature control of the medicament under the static state is realized, and the problems that the joint of an air duct and a bracket of the original rotary evaporator is seriously abraded, the vacuum degree is not ideal and a sealing ring needs to be replaced frequently are solved; the cold trap is additionally arranged at the rear end of the cold trap and used as a front auxiliary device of a vacuum pump, so that the evaporation density of the medicament is improved, the gaseous medicament only circulates in the hollow interlayer of the cold trap, and the liquefaction speed is higher.

Description

Magnetic stirring short-distance evaporator

Technical Field

The utility model relates to a distillation plant technical field especially indicates magnetic stirring short distance evaporimeter.

Background

The evaporator is mainly used for concentrating the extract and distilling the receiving liquid during chromatographic separation to separate and purify the reaction product. The basic principle is negative pressure distillation, namely, the evaporation bottle is in a negative pressure state through a vacuum pump, the evaporation bottle is heated by a water bath kettle, and solution in the evaporation bottle is evaporated into steam and reaches a condensation pipe through a gas guide pipe to be rapidly condensed.

The evaporation plant that the laboratory is current is rotary evaporator mostly, that is to say when the solution distills, the evaporation flask is in continuous rotation, because the evaporation flask is linked together with the air duct, so the air duct is also along with the evaporation flask continuous rotation, this just requires the air duct to rotate on the support on the one hand, on the other hand still will go up and down on the support, this makes the rotatory lift drive arrangement of air duct very complicated, the fault rate is higher, it is serious with the wearing and tearing of leg joint, vacuum is unsatisfactory, the sealing washer often needs to be changed, use cost is higher.

SUMMERY OF THE UTILITY MODEL

In order to solve the rotary evaporator who exists among the background art and make the higher problem of fault rate at dynamic processes such as rotation, lift that the evaporation process constantly goes on, the utility model provides a magnetic stirring short distance evaporimeter.

The technical scheme of the utility model is that: the magnetic stirring short-distance evaporator comprises a base I, wherein a magnetic stirrer is arranged on the base I, an evaporation bottle is placed on a platform of the magnetic stirrer, a magnetic stirrer matched with the magnetic stirrer is placed in the evaporation bottle, a temperature detector is embedded in the evaporation bottle in a sealing manner, and an electric heating automatic control device is arranged around the evaporation bottle; the upper portion of evaporating flask is equipped with the gas vent, gas vent and cooling device's the mouth that connects intercommunication, cooling device's the other end export and the entry sealing connection of comdenstion water collection device, comdenstion water collection device's gas state medicament inlet pipe connection with the cold trap, the bottom of cold trap is equipped with liquid medicament export, liquid medicament export lower part sealing connection has detachable receiving flask II, the upper portion of cold trap is equipped with vacuum pump interface, vacuum pump interface and vacuum pump pipe connection.

The cold trap is an upper opening double-layer transparent glass tube structure, a hollow interlayer which is used for the gas medicament to pass through is formed between double-layer wall bodies of the cold trap, the liquid medicament outlet and the vacuum pump interface are communicated with the hollow interlayer, the refrigerant is placed in the glass tube of the cold trap, and the detachable sealing cover for sealing is arranged on the upper portion of the glass tube of the cold trap.

The electric heating automatic control device comprises an electric heating sleeve and a temperature display controller, the electric heating sleeve is sleeved on the evaporation bottle, the upper part of the evaporation bottle is provided with a temperature detector mounting port, a temperature measuring probe of the temperature detector is inserted into the temperature detector mounting port, the upper part of the temperature detector is tightly and hermetically connected with the temperature detector mounting port through a flange, the electric heating sleeve and the temperature detector are respectively electrically connected with the temperature display controller, the temperature display controller is fixedly arranged on a vertical rod I, and the lower end of the vertical rod I is fixedly connected with a base I.

The cooling device comprises an air receiving pipe which is arranged obliquely upwards, the lower end of the air receiving pipe is provided with an air receiving port, and the air receiving port is tightly and hermetically connected with the exhaust port through a flange; the upper end of the gas receiving pipe is provided with a plug in threaded connection, the middle part of the gas receiving pipe is communicated with the left end of a mixed gas-liquid guide pipe which is obliquely arranged downwards, the middle part of the mixed gas-liquid guide pipe is provided with a cooling pipe with two sealed ends, a cooling liquid channel is formed between the inner wall of the cooling pipe and the outer wall of the mixed gas-liquid guide pipe, the left side of the cooling pipe is provided with a cooling liquid inlet, and the right side of the cooling pipe is provided with a cooling liquid outlet; the right end of the mixed gas-liquid guide pipe is inserted into an inlet of the condensate water collecting device, a sealing interface extending rightwards is arranged at the right end sealing position of the cooling pipe, and the sealing interface is connected with the inlet of the condensate water collecting device through a flange.

Condensate water collection device includes the buffer memory bottle, the left side of buffer memory bottle is equipped with and passes through the mixed gas-liquid entry that the flange fastening is in the same place with sealed interface, the right-hand member of mixed gas-liquid honeycomb duct inserts the mixed gas-liquid entry, the buffer memory bottle is fixed to be established on pole setting II, pole setting II's lower extreme and liftable base fixed connection, the lower part of buffer memory bottle is equipped with a plurality of comdenstion water export, every comdenstion water exit all is equipped with a detachable receiving flask I, place on the bracket on liftable base upper portion in receiving flask I's bottom, the upper portion of buffer memory bottle is equipped with gaseous state medicament export, gaseous state medicament.

The lifting base comprises a bracket arranged at the top, an air cylinder or an electric push rod used for lifting driving is arranged below the bracket, and the air cylinder or the electric push rod is fixedly arranged on the base III.

The utility model has the advantages that: the utility model adopts the magnetic stirring instrument to seal and stir the mixed medicine, and saves the connecting interface of the stirring device and the evaporation bottle, so that the sealing performance of the evaporation bottle is greatly improved; the outer side of the evaporation bottle is provided with a temperature detector for monitoring the temperature in the evaporation bottle in real time, and the temperature detector is matched with an electric heating sleeve and a temperature display controller of an electric heating automatic control device, so that the automatic heating and temperature control of the medicament under the static state is realized, and the problems that the joint of an air duct and a bracket of the original rotary evaporator is seriously abraded, the vacuum degree is not ideal and a sealing ring needs to be replaced frequently are solved; the cold trap is additionally installed at the rear end of the cold trap and used as a front auxiliary device of a vacuum pump, the evaporation density of the medicament is improved, and the gaseous medicament only circulates in a hollow interlayer formed between double-layer wall bodies of the cold trap, so that the contact area of the gaseous medicament and the refrigerant is larger, the liquefaction speed is higher, and the condensation is easier.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic diagram of the structure of the evaporation flask of FIG. 1;

FIG. 3 is a schematic view of the cooling apparatus of FIG. 1;

FIG. 4 is a schematic structural view of the condensate collecting apparatus of FIG. 1;

FIG. 5 is a schematic view of the medicament collection device of FIG. 1;

in the figure, 1, a base I, 2, a magnetic stirrer, 3, an electric jacket, 4, an evaporation bottle, 401, a thermometer mounting port, 402, an exhaust port, 5, a thermometer, 6, a temperature display controller, 7, a cooling device, 7-1, a gas receiving pipe, 7-2, a gas receiving port, 7-3, a plug, 7-4, a cooling pipe, 7-5, a cooling liquid inlet, 7-6, a cooling liquid outlet, 7-7, a sealing interface, 7-8, a mixed gas-liquid guide pipe, 8, a buffer bottle, 8-1, a mixed gas-liquid inlet, 8-2, a condensed water outlet, 8-3, a gaseous medicament outlet, 9, a collecting bottle I, 10, a lifting base, 11, a cold trap, 11-1, a gaseous medicament inlet, 11-2, a liquid medicament outlet, 11-3 and a vacuum pump interface are arranged in sequence, 12. collecting bottles II and 13 and a base II.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

Example 1: magnetic stirring short distance evaporimeter, as shown in figure 1, including base I1, be equipped with magnetic stirrers 2 on the base I1, evaporating flask 4 has been placed on magnetic stirrers 2's the platform, place the magnetic stirrer with magnetic stirrers 2 complex in the evaporating flask 4, as shown in figure 2, the upper portion of evaporating flask 4 is equipped with thermoscope installing port 4-1, the temperature probe of thermoscope 5 inserts in the thermoscope installing port 4-1, the upper portion of thermoscope 5 passes through flange fastening sealing connection with thermoscope installing port 4-1, the cover is equipped with electric heat cover 3 on the evaporating flask 4, electric heat cover 3, thermoscope 5 is connected with temperature display controller 6 electricity respectively, temperature display controller 6 is fixed to be established on pole setting I, the lower extreme and the base I1 fixed connection of pole setting I.

The upper part of the evaporation bottle 4 is provided with an exhaust port 4-2, as shown in fig. 1 and fig. 3, the cooling device 7 comprises an air receiving pipe 7-1 which is arranged obliquely upwards, the lower end of the air receiving pipe 7-1 is provided with an air receiving port 7-2, and the air receiving port 7-2 is tightly and hermetically connected with the exhaust port 4-2 through a flange; the upper end of the air receiving pipe 7-1 is provided with a plug 7-3 in threaded connection, the middle part of the air receiving pipe 7-1 is communicated with the left end of a mixed gas-liquid guide pipe 7-8 which is obliquely arranged downwards, the middle part of the mixed gas-liquid guide pipe 7-8 is provided with a cooling pipe 7-4 with two sealed ends, a cooling liquid channel is formed between the inner wall of the cooling pipe 7-4 and the outer wall of the mixed gas-liquid guide pipe 7-8, the left side of the cooling pipe 7-4 is provided with a cooling liquid inlet 7-5, and the right side of the cooling pipe 7-4 is provided with a cooling liquid outlet 7-6; the right end of the mixed gas-liquid guide pipe 7-8 is inserted into the inlet of the condensed water collecting device, a sealing joint 7-7 extending rightwards is arranged at the sealing position of the right end of the cooling pipe 7-4, and the sealing joint 7-7 is connected with the inlet of the condensed water collecting device through a flange.

As shown in fig. 1 and 4, the condensed water collecting device comprises a buffer bottle 8, a mixed gas-liquid inlet 8-1 fastened with a sealing interface 7-7 through a flange is arranged on the left side of the buffer bottle 8, the right end of the mixed gas-liquid guide pipe 7-8 is inserted into the mixed gas-liquid inlet 8-1, the buffer bottle 8 is fixedly arranged on a vertical rod II, the lower end of the vertical rod II is fixedly connected with a liftable base 10, a plurality of condensed water outlets 8-2 are arranged on the lower portion of the buffer bottle 8, a detachable collecting bottle I9 is arranged at each condensed water outlet 8-2, the bottom of the collecting bottle I9 is arranged on a bracket on the upper portion of the liftable base 10, the liftable base 10 further comprises a cylinder which is arranged below the bracket and used as a lifting drive, and the cylinder is fixedly arranged on the base. The upper part of the buffer bottle 8 is provided with a gaseous medicament outlet 8-3, and the gaseous medicament outlet 8-3 is connected with a gaseous medicament inlet 11-1 at the lower part of the cold trap 11 through a pipeline.

As shown in fig. 1 and 5, the cold trap 11 is a double-layer transparent glass tube structure with an upper opening, a hollow interlayer for the passage of the liquid medicine is formed between double-layer wall bodies of the cold trap 11, a liquid medicine outlet 11-2 is arranged at the bottom of the cold trap 11, a detachable collecting bottle II12 is hermetically connected to the lower part of the liquid medicine outlet 11-2, a vacuum pump interface 11-3 is arranged at the upper part of the cold trap 11, and the vacuum pump interface 11-3 is connected with a vacuum pump pipeline. The liquid medicament outlet 11-2, the liquid medicament outlet 11-2 and the vacuum pump interface 11-3 are all communicated with the hollow interlayer, refrigerant is placed in a glass tube of the cold trap 11, a detachable sealing cover for sealing is arranged at the upper part of the glass tube of the cold trap 11, and the sealing cover is in threaded connection with the upper part of the glass tube.

The flange connection in this embodiment, specifically speaking is, a flange piece is fixed mounting at two needs to the kneck of dress, then fastens two flange pieces together through the bolt, and then realizes the quick sealed dress of two interfaces.

The working principle is as follows: the utility model adopts the magnetic stirring instrument to seal and stir the mixed medicine, and saves the connecting interface of the stirring device and the evaporation bottle, so that the sealing performance of the evaporation bottle is greatly improved; the outer side of the evaporation bottle is provided with a temperature detector for monitoring the temperature in the evaporation bottle in real time, and the temperature detector is matched with an electric heating sleeve and a temperature display controller of an electric heating automatic control device, so that the automatic heating and temperature control of the medicament under the static state is realized, and the problems that the joint of an air duct and a bracket of the original rotary evaporator is seriously abraded, the vacuum degree is not ideal and a sealing ring needs to be replaced frequently are solved; the cold trap is additionally installed at the rear end of the cold trap and used as a front auxiliary device of a vacuum pump, the evaporation density of the medicament is improved, and the gaseous medicament only circulates in a hollow interlayer formed between double-layer wall bodies of the cold trap, so that the contact area of the gaseous medicament and the refrigerant is larger, the liquefaction speed is higher, and the condensation is easier.

Example 2: magnetic stirring short distance evaporimeter, liftable drive of base 10 are electric putter, and the below of collecting bottle II12 is equipped with base II13, is equipped with the bracket II that is used for holding up collecting bottle II12 on the base II 13.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Magnetic stirring short distance evaporimeter, its characterized in that: the automatic heating device comprises a base I (1), wherein a magnetic stirrer (2) is arranged on the base I (1), an evaporation bottle (4) is placed on a platform of the magnetic stirrer (2), a magnetic stirrer matched with the magnetic stirrer (2) is placed in the evaporation bottle (4), a temperature detector (5) is embedded on the evaporation bottle (4) in a sealing manner, and an electric heating automatic control device is arranged around the evaporation bottle (4); the upper portion of evaporation bottle (4) is equipped with gas vent (4-2), gas vent (4-2) and air connection mouth (7-2) intercommunication of cooling device (7), the other end export of cooling device (7) and the entry sealing connection of comdenstion water collection device, the gas vent of comdenstion water collection device and the gaseous state medicament entry (11-1) pipe connection of cold-trap (11), the bottom of cold-trap (11) is equipped with liquid medicament export (11-2), liquid medicament export (11-2) lower part sealing connection has detachable receiving flask II (12), the upper portion of cold-trap (11) is equipped with vacuum pump interface (11-3), vacuum pump interface (11-3) and vacuum pump pipe connection.

2. A magnetic stirring short path evaporator as set forth in claim 1 in which: the cold trap (11) is of a double-layer transparent glass tube structure with an upper opening, a hollow interlayer for the gas medicament to pass through is formed between double-layer wall bodies of the cold trap (11), a liquid medicament outlet (11-2) and a vacuum pump interface (11-3) are communicated with the hollow interlayer, the refrigerant is placed in the glass tube of the cold trap (11), and a detachable sealing cover for sealing is arranged on the upper portion of the glass tube of the cold trap (11).

3. A magnetic stirring short path evaporator as set forth in claim 1 in which: the automatic electric heating control device comprises an electric heating sleeve (3) and a temperature display controller (6), the electric heating sleeve (3) is sleeved on an evaporation bottle (4), a thermometer mounting hole (4-1) is formed in the upper portion of the evaporation bottle (4), a temperature measuring probe of a thermometer (5) is inserted into the thermometer mounting hole (4-1), the upper portion of the thermometer (5) is tightly and hermetically connected with the thermometer mounting hole (4-1) through a flange, the electric heating sleeve (3) and the thermometer (5) are respectively electrically connected with the temperature display controller (6), the temperature display controller (6) is fixedly arranged on a vertical rod I, and the lower end of the vertical rod I is fixedly connected with a base I (1).

4. A magnetic stirring short path evaporator as set forth in claim 1 in which: the cooling device (7) comprises an air receiving pipe (7-1) which is arranged obliquely upwards, an air receiving port (7-2) is arranged at the lower end of the air receiving pipe (7-1), and the air receiving port (7-2) is tightly and hermetically connected with the exhaust port (4-2) through a flange; the upper end of the gas receiving pipe (7-1) is provided with a plug (7-3) in threaded connection, the middle part of the gas receiving pipe (7-1) is communicated with the left end of a mixed gas-liquid guide pipe (7-8) which is obliquely arranged downwards, the middle part of the mixed gas-liquid guide pipe (7-8) is provided with a cooling pipe (7-4) with two sealed ends, a cooling liquid channel is formed between the inner wall of the cooling pipe (7-4) and the outer wall of the mixed gas-liquid guide pipe (7-8), the left side of the cooling pipe (7-4) is provided with a cooling liquid inlet (7-5), and the right side of the cooling pipe (7-4) is provided with a cooling liquid outlet (7-6); the right end of the mixed gas-liquid guide pipe (7-8) is inserted into the inlet of the condensed water collecting device, a sealing interface (7-7) extending rightwards is arranged at the sealing position of the right end of the cooling pipe (7-4), and the sealing interface (7-7) is connected with the inlet of the condensed water collecting device through a flange.

5. A magnetic stirring short-path evaporator as set forth in claim 4, characterized in that: the condensed water collecting device comprises a buffer bottle (8), a mixed gas-liquid inlet (8-1) fastened together with a sealing connector (7-7) through a flange is formed in the left side of the buffer bottle (8), the right end of the mixed gas-liquid guide pipe (7-8) is inserted into the mixed gas-liquid inlet (8-1), the buffer bottle (8) is fixedly arranged on a vertical rod II, the lower end of the vertical rod II is fixedly connected with a liftable base (10), a plurality of condensed water outlets (8-2) are formed in the lower portion of the buffer bottle (8), a detachable collecting bottle I (9) is arranged at each condensed water outlet (8-2), the bottom of each collecting bottle I (9) is placed on a bracket on the upper portion of the liftable base (10), a gaseous medicament outlet (8-3) is formed in the upper portion of the buffer bottle (8), and the gaseous medicament outlet (8-3) is connected with the liftable medicament inlet (11-.

6. A magnetic stirring short path evaporator as set forth in claim 5 in which: the lifting base (10) comprises a bracket arranged at the top, an air cylinder or an electric push rod used for lifting driving is arranged below the bracket, and the air cylinder or the electric push rod is fixedly arranged on the base III.