Gas-liquid separation and recovery device

Abstract

The utility model discloses a gas-liquid separation recovery device, including first heater, second heater, first distillation flask and rectification mechanism, rectification mechanism includes second distillation flask, rectifying column, second condenser pipe and collecting flask, second distillation flask is provided in the second heater, rectifying column is provided on the second distillation flask, and collecting flask is provided on the second condenser pipe. One end of the second condensation pipe is connected with the upper part of the rectifying column, the other end of the second condensation pipe is connected with the collection bottle, and the first distillation bottle and the second distillation bottle are connected through the conveying assembly; and the feeding device is used for feeding gas evaporated by the first distillation flask into the first condensation pipe, condensing the gas and feeding the condensed gas into the second distillation flask. According to the utility model, the first distillation flask and the rectification mechanism are connected in series through the conveying assembly, so that the series connection of a distillation process and a rectification process is realized, distilled components can be further rectified, and accurate separation of substances with similar boiling points is realized.

Description

Technical Field

[0001] This utility model relates to the field of distillation apparatus technology, and in particular to a gas-liquid separation and recovery device. Background Technology

[0002] In the chemical industry, various solvents are often used for dissolution, synthesis, and other operations to achieve uniform dispersion and sufficient contact of raw materials, ensuring the normal progress of the reaction. For example, in the preparation of polymer microspheres, some solvent inevitably remains after the polymer is formed. Distillation equipment is generally used to recover the solvent and obtain pure polymer.

[0003] In the prior art, such as the high-efficiency distillation separation device with application number 202322588754.0, the gas formed by evaporation is fully cooled in the condenser tube by a vertically set condenser tube, which improves the condensation efficiency and the distillation separation efficiency. However, it can only evaporate one solvent component at a certain boiling point, and it cannot accurately separate solvent components with similar boiling points. Utility Model Content

[0004] The purpose of this invention is to provide a gas-liquid separation and recovery device. By connecting the first distillation flask and the rectification mechanism in series through the conveying component, the distillation process and the rectification process can be connected in series, and the evaporated components can be further rectified to achieve accurate separation of substances with similar boiling points.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a gas-liquid separation and recovery device, comprising a first heater, a second heater, and a first distillation flask and a distillation mechanism respectively disposed within the first heater and the second heater. The distillation mechanism includes a second distillation flask, a distillation column, a second condenser, and a collection bottle. The second distillation flask is disposed within the second heater, and the distillation column is disposed on the second distillation flask. One end of the second condenser is connected to the upper part of the distillation column, and the other end is connected to the collection bottle. The first distillation flask and the second distillation flask are connected via a conveying assembly. The conveying assembly includes a guide bottle and a first condenser disposed at the upper end of the guide bottle. The guide bottle is connected to both the first distillation flask and the second distillation flask, and is used to feed the gas evaporated from the first distillation flask to the first condenser, where it is condensed and then fed to the second distillation flask.

[0006] As a further optimization, the guide bottle includes a bottle body, an air inlet pipe, an upper air pipe, and a liquid outlet pipe. The air inlet pipe is located on one side of the bottle body and is connected to the first distillation flask. The upper air pipe is located on the upper part of the bottle body and is connected to the first condenser tube. The liquid outlet pipe is located at the lower end of the bottle body and is connected to the second distillation flask. A stopcock is provided on the liquid outlet pipe.

[0007] As a further optimization, the bottle body has a spherical structure, and the connection between the air inlet pipe and the bottle body is located at the upper part of the bottle body, which allows the vapor in the first distillation flask to quickly enter the first condenser tube, avoiding the excessive pressure caused by filling the guide bottle.

[0008] As a further optimization, the outlet tube has a bent structure, which can effectively prevent vapor in the second distillation flask from entering the guide bottle.

[0009] As a further optimization, the outlet pipe includes an upper branch pipe, an oblique branch pipe and a lower branch pipe connected in sequence, and the stopcock is disposed on the lower branch pipe.

[0010] As a further optimization, the device also includes a stirring mechanism that extends into the first distillation flask.

[0011] As a further optimization, the second distillation flask is provided with a stopper, and the end of the liquid outlet tube passes through the stopper to ensure the sealing effect of the second distillation flask.

[0012] As a further optimization, a thermometer is provided on the second distillation flask, with the end of the thermometer located at the connection between the second distillation flask and the second condenser.

[0013] As a further optimization, the distillation column is a spike-shaped distillation column.

[0014] As a further optimization, the outside of the distillation column is wrapped with an insulation layer, such as an electric heating wire, to ensure that the temperature inside the distillation column remains constant.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By connecting the first distillation flask and the rectification mechanism in series through the conveying component, the distillation process and the rectification process can be connected in series, which can further rectify the evaporated components and achieve precise separation of substances with similar boiling points;

[0017] 2. The guide bottle is connected to the first condenser. The guide bottle serves as both a gas transport container in the initial distillation process and a liquid collection and transport container in the subsequent rectification process. The guide bottle connects the distillation and rectification processes, ensuring a smooth connection between them.

[0018] 3. The guide bottle can store the liquid after the previous distillation and condensation, which can isolate the distillation and distillation process and ensure that the distillation and rectification processes proceed smoothly. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the present invention.

[0020] Figure 2 This is a schematic diagram of the connection of the guide bottle of this utility model.

[0021] Figure 3 This is a side view of the guide bottle of this utility model.

[0022] Figure 4 This is a structural diagram of another embodiment of the liquid outlet tube of this utility model. Detailed Implementation

[0023] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0024] like Figures 1 to 3 As shown, a gas-liquid separation and recovery device includes a first heater 100, a second heater 200, and a first distillation flask 11 and a distillation mechanism 20 respectively disposed within the first heater 100 and the second heater 200. Both the first heater 100 and the second heater 200 can be equipped with heating jackets. The first distillation flask 11 is mounted on a first iron stand 101, with its lower part disposed within the first heater 100. The distillation mechanism 20 includes a second distillation flask 21, a distillation column 22, a second condenser 23, and a collection bottle 24. The second distillation flask 21 is mounted on the second iron stand 201, with its lower part disposed within the second heater 200. The distillation column 22 can be selected as a spike-shaped distillation column. It is set on the second iron stand 201, and its lower end is connected to the second distillation flask 21. One end of the second condenser tube 23 is connected to the upper part of the distillation column 22, and the other end is connected to the collection bottle 24 set on the second iron stand 201. The first distillation flask 11 and the second distillation flask 21 are connected by a conveying assembly 30. The conveying assembly 30 includes a guide bottle 31 and a first condenser tube 32 set on the upper end of the guide bottle 31. The guide bottle 31 and the first condenser tube 32 are respectively fixed on the iron stand. The guide bottle 31 is connected to the first distillation flask 11 and the second distillation flask 21 and can be used to feed the gas evaporated from the first distillation flask 11 to the first condenser tube 32, and after condensation, it is fed into the second distillation flask 21.

[0025] In this invention, the liquid in the first distillation flask 11 is heated by the first heater 100. As the temperature rises, the liquid in the first distillation flask 11 reaches the set boiling point and evaporates to form steam, creating a mixed steam with at least two components. The steam enters the conveying assembly 30 and first enters the guide bottle 31. Due to the upward flow characteristic of steam, the steam enters the first condenser 32. In the first condenser 32, the steam condenses into liquid due to the decrease in temperature and falls back into the guide bottle 31 due to gravity. It then enters the second distillation flask 21 through the guide bottle 31. The liquid in the second distillation flask 21 is heated and evaporated by the second heater 200 and then enters the distillation column 22. Distillation is achieved through the cooperation of the distillation column 22 and the second condenser 23. The liquid produced by distillation enters the collection bottle 24 to separate the two components, thus achieving high-precision gas-liquid separation. Alternatively, the distillation process can be vacuum distillation, i.e., a vacuum pump is connected to the hose at the end of the second condenser 23.

[0026] This invention connects the first distillation flask 11 and the rectification mechanism 20 in series via a conveying assembly 30, thereby achieving the series connection of the distillation and rectification processes. This allows for further rectification of the evaporated components, enabling precise separation of substances with similar boiling points. The guide bottle 31 is connected to the first condenser 32 to facilitate gas transport and liquid collection. In this process, the guide bottle 31 serves as both a gas transport container in the initial distillation process and a liquid collection and transport container in the subsequent rectification process. The guide bottle connects the distillation and rectification processes, ensuring smooth communication between them.

[0027] Preferably, the guide bottle 31 includes a bottle body 311, an air inlet pipe 312, an upper air pipe 313, and a liquid outlet pipe 314. The air inlet pipe 312 is located on one side of the bottle body 311 and is connected to the first distillation flask 11. The upper air pipe 313 is located at the upper part of the bottle body 311 and is connected to the first condenser pipe 32. The liquid outlet pipe 314 is located at the lower end of the bottle body 311 and is connected to the second distillation flask 21. A stopcock 315 is provided on the liquid outlet pipe 314. The gas evaporated from the first distillation flask 11 enters the bottle body 311 through the inlet pipe 312 and flows upward. It then enters the first condenser 32 through the upper gas pipe 313, where it condenses into liquid and falls back into the bottle body 311. A stopcock 315 on the outlet pipe 314 temporarily seals the bottle body 311, isolating it from the second distillation flask 21 to store the liquid condensed by the first condenser 32. When the liquid volume reaches a certain level (at a certain height within the bottle body 311), the stopcock 315 is opened to inject the liquid into the second distillation flask 21. The stopcock is then closed again to continue the liquid storage process. This setup effectively isolates the distillation and rectification processes, ensuring that the distilled liquid can quickly enter the rectification process while preventing interference between the two processes, thus guaranteeing their smooth operation. Alternatively, a stopper 211 can be installed on the second distillation flask 21, and the end of the liquid outlet tube 314 can be inserted into the second distillation flask 21 through the stopper 211 to ensure the sealing of the second distillation flask 21.

[0028] Based on the above-mentioned structure of the guide bottle 31, it is preferable that the bottle body 311 has a spherical structure, which can provide a large space for liquid storage. Moreover, the connection between the air inlet pipe 312 and the bottle body 311 is located at the upper part of the bottle body 311, which can prevent the stored liquid from flowing back to the air inlet pipe 312 and re-entering the first distillation flask 11. Furthermore, the upper position of the air inlet pipe 312 and the bottle body 311 is more conducive to the steam generated in the first distillation flask 11 directly entering the upper air pipe 313 and then entering the first condenser pipe 32 for condensation. Combined with the rising movement characteristics of steam, it is avoided that too much of it fills the lower part of the bottle body 311.

[0029] Preferred, such as Figure 4 As shown, in another embodiment of this utility model, the liquid outlet pipe 314 has a bent structure. While enabling the liquid in the bottle body 311 to enter the second distillation flask 21, the bent shape can also effectively prevent the gas in the second distillation flask 21 from entering the guide bottle 31 through the liquid outlet pipe 314.

[0030] Specifically, the liquid outlet pipe 314 includes an upper branch pipe 3141, an inclined branch pipe 3142, and a lower branch pipe 3143 connected in sequence. The stopcock 315 is installed in the insertion hole 3140 on the lower branch pipe 3143. The above-mentioned structure not only makes the liquid outlet pipe 314 have a bent structure, but also has an overall inclined downward guiding structure, which is more conducive to the flow of liquid in the bottle 311 into the second distillation flask 21.

[0031] For example Figure 1 As shown, the device also includes a stirring mechanism 12, which is mounted on the first iron frame 101. Its stirring blades extend into the first distillation flask 11 and rotate after being driven by a stirring motor, which can achieve uniform dispersion of the liquid in the first distillation flask 11 and improve the heating and evaporation effect by uniform heating.

[0032] A thermometer 25 is provided on the second distillation flask 21. The end of the thermometer 25 is located at the connection between the second distillation flask 21 and the second condenser 32. The corresponding vapor composition can be determined by measuring the temperature at this location.

[0033] In addition, the outside of the distillation column 22 may be wrapped with an insulation layer (not shown), such as an electric heating wire or a cloth layer, to ensure the temperature inside the distillation column 22.

[0034] It should be noted that both the first condenser 32 and the second condenser 21 are connected to the circulating water conveying mechanism 40. The continuously circulating cooling water can quickly cool and condense the steam located in the first condenser 32 and the second condenser 21.

[0035] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A gas-liquid separation and recovery apparatus, characterized by comprising: The device comprises a first heater, a second heater, a first distillation flask and a rectification mechanism arranged in the first and second heaters respectively, the rectification mechanism comprises a second distillation flask, a rectification column, a second condenser and a collection flask, the second distillation flask is arranged in the second heater, the rectification column is arranged on the second distillation flask, one end of the second condenser is connected to the upper part of the rectification column, and the other end of the second condenser is connected to the collection flask, the first distillation flask is connected to the second distillation flask through a conveying assembly, the conveying assembly comprises a flow guide flask and a first condenser arranged on the upper end of the flow guide flask, the flow guide flask is connected to the first and second distillation flasks respectively, and is used for feeding the gas evaporated from the first distillation flask to the first condenser and then to the second distillation flask after condensation.

2. The gas-liquid separation and recovery apparatus according to claim 1, wherein The flow guide flask comprises a flask body, an air inlet pipe, an upper air pipe and a liquid outlet pipe, the air inlet pipe is arranged on one side of the flask body and is connected to the first distillation flask, the upper air pipe is arranged on the upper part of the flask body and is connected to the first condenser, the liquid outlet pipe is arranged on the lower end of the flask body and is connected to the second distillation flask, and a plug is arranged on the liquid outlet pipe.

3. The gas-liquid separation and recovery apparatus according to claim 2, characterized by The flask body is in a spherical structure, and the connection between the air inlet pipe and the flask body is located on the upper part of the flask body.

4. The gas-liquid separation and recovery apparatus according to claim 2, wherein The liquid outlet pipe is in a bending structure.

5. The gas-liquid separation and recovery apparatus according to claim 2, wherein The liquid outlet pipe comprises an upper branch pipe, an inclined branch pipe and a lower branch pipe connected in sequence, and the plug is arranged on the lower branch pipe.

6. The gas-liquid separation and recovery apparatus according to claim 1, wherein A stirring mechanism is further arranged and extends into the first distillation flask.

7. The gas-liquid separation and recovery apparatus according to claim 2, wherein A plug is arranged on the second distillation flask, and the end of the liquid outlet pipe penetrates through the plug.

8. The gas-liquid separation and recovery apparatus according to claim 1, characterized by A thermometer is arranged on the second distillation flask, and the end of the thermometer is located at the connection between the second distillation flask and the second condenser.

9. The gas-liquid separation and recovery apparatus according to claim 1, characterized by The rectification column is a thorn-shaped rectification column.

10. The gas-liquid separation and recovery apparatus according to claim 1, characterized by An insulation layer is arranged on the outer side of the rectification column.

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