A device for extracting ethanol from ethyl carbamate

Abstract

The utility model relates to the technical field of ethanol extraction equipment, and discloses an ethanol extraction equipment in ethyl formate, comprising a vacuum kettle, a water bath is arranged on the left part of the vacuum kettle, a steam pipe is fixedly connected to the left part of the water bath, a water inlet pipe is fixedly connected to the right side of the water bath, a water pump is fixedly connected to the right part of the water inlet pipe, the water pump is fixedly connected to the left part of the water bath, and a temperature sensor is fixedly installed on the upper left side of the water bath. In the utility model, the evaporation rate of ethanol in ethyl formate is accelerated by heating the vacuum kettle under vacuum conditions and using a stirring device, the boiling point of ethanol is reduced under vacuum conditions, and the heating of the vacuum kettle makes it easier for ethanol in the liquid to evaporate, and hot water is pumped from the water bath into the side wall cavity of the vacuum kettle through circulation, so that the vacuum kettle is evenly heated, the utilization rate of water is improved, and the vacuum kettle is heated more evenly.

Description

Technical Field

[0001] The utility model relates to the technical field of ethanol extraction equipment, in particular to ethanol extraction equipment in ethyl formate. Background Art

[0002] Ethyl carbamate (hereinafter, sometimes referred to as "EC") is a compound that has been used as a pharmaceutical in the past but is suspected to be carcinogenic or mutagenic. When ingested through food or beverages, there are concerns about its effect on the human body. In particular, Shaoxing wine, sherry, or fermented foods contain a large amount of EC, and it is desired to develop a method for reducing or removing EC.

[0003] However, the existing ethyl formate contains ethanol, which needs to be separated by distillation extraction. The existing equipment has a slow evaporation efficiency for extracting ethanol from ethyl formate and cannot meet the existing production needs. Therefore, those skilled in the art provide an ethanol extraction device for ethyl formate to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an ethanol extraction device in ethyl formate, aiming to improve the problem that the existing equipment in the prior art has slow evaporation efficiency for ethanol extraction in ethyl formate and cannot meet the existing production needs.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An ethanol extraction device in ethyl formate comprises a vacuum kettle, a water bath is arranged on the left side of the vacuum kettle, a steam pipe is fixedly connected to the left side of the water bath, a water inlet pipe is fixedly connected to the right side of the water inlet pipe, a water pump is fixedly connected to the left side of the vacuum kettle, a temperature sensor is fixedly installed on the left side of the upper part of the water bath, a reflux pipe is fixedly connected to the right side of the upper part of the water bath, a motor is fixedly connected to the middle side of the upper part of the vacuum kettle, a stirring shaft is fixedly connected to the output end of the motor, a stirring impeller is fixedly connected to the outside of the stirring shaft, and a pressure sensor is fixedly installed on the right side of the vacuum kettle. The vacuum kettle has a feed pipe fixedly connected to the right side of the upper part, a first valve fixedly connected to the outside of the feed pipe, a second connecting pipe fixedly connected to the left side of the upper part of the vacuum kettle, a vacuum pump fixedly connected to the lower part of the second connecting pipe, a first connecting pipe fixedly connected to the right side of the vacuum kettle, a cooling assembly arranged on the right side of the first connecting pipe, the cooling assembly comprising a condensing tower, the condensing tower fixedly connected to the right side of the first connecting pipe, a condenser arranged on the upper part of the condensing tower, a condensing pipe fixedly arranged inside the condenser, an exhaust pipe fixedly connected to the left part of the condensing pipe, the lower part of the exhaust pipe fixedly connected to the upper part of the condensing tower, and a heat absorption pipe arranged on the outside of the condensing pipe.

[0007] Furthermore, the right part of the condensation tower is fixedly connected with a discharge pipe, and a second valve is fixedly installed on the outside of the discharge pipe.

[0008] Furthermore, a controller is fixedly connected to the front of the vacuum kettle.

[0009] Furthermore, brackets are fixedly connected to the four corners of the bottom of the vacuum kettle, water bath and condensation tower.

[0010] Furthermore, the stirring impeller is rotatably connected to the interior of the vacuum kettle.

[0011] Furthermore, the controller is electrically connected to the water pump, the motor, the temperature sensor and the pressure sensor.

[0012] Furthermore, the vacuum pump is arranged on the front side of the vacuum reactor.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, the evaporation rate of ethanol in ethyl formate is accelerated by the cooperation among structures such as a water bath, a water pump, a vacuum kettle, a stirring shaft, a stirring impeller, a second connecting pipe, a first connecting pipe and a vacuum pump, and by heating the vacuum kettle under vacuum conditions and using a stirring device. Under vacuum conditions, the boiling point of ethanol is reduced, and heating the vacuum kettle makes it easier for ethanol in the liquid to evaporate. Hot water is pumped from the water bath into the side wall cavity of the vacuum kettle through circulation, so that the vacuum kettle is evenly heated, the utilization rate of water is improved, and the vacuum kettle is heated more evenly.

[0015] In the utility model, through the cooperation among structures such as the condensation tower, the condenser, the condensing pipe, the exhaust pipe, the heat absorbing pipe discharge pipe and the second valve, the ethanol vapor is cooled by the condenser to liquefy it and separate it from ethyl formate. This condensation and separation process effectively separates ethanol from ethyl formate, and the condenser and the condensing pipe are used to cool and liquefy the ethanol vapor. The design of the heat absorbing pipe improves the cooling efficiency of the condenser, which helps to condense ethanol into liquid more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of an ethanol extraction device from ethyl formate proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a vacuum kettle of an ethanol extraction device in ethyl formate proposed by the utility model;

[0018] Figure 3 The utility model discloses a schematic diagram of the internal structure of a condenser of an ethanol extraction device in ethyl formate.

[0019] Legend:

[0020] 1. Temperature sensor; 2. Reflux pipe; 3. Motor; 4. Feed pipe; 5. First valve; 6. Condenser; 7. Second valve; 8. Discharge pipe; 9. First connecting pipe; 10. Vacuum kettle; 11. Second connecting pipe; 12. Vacuum pump; 13. Water pump; 14. Water inlet pipe; 15. Bracket; 16. Water bath; 17. Steam pipe; 18. Stirring impeller; 19. Stirring shaft; 20. Pressure sensor; 21. Heat absorbing pipe; 22. Exhaust pipe; 23. Condenser; 24. Condensation tower; 25. Controller. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the utility model:

[0023] A device for extracting ethanol from ethyl formate comprises a vacuum kettle 10, a water bath 16 is arranged on the left side of the vacuum kettle 10, a steam pipe 17 is fixedly connected to the left side of the water bath 16, a water inlet pipe 14 is fixedly connected to the right side of the water inlet pipe 14, a water pump 13 is fixedly connected to the left side of the vacuum kettle 10, a temperature sensor 1 is fixedly installed on the left side of the upper part of the water bath 16, a reflux pipe 2 is fixedly connected to the right side of the upper part of the water bath 16, a motor 3 is fixedly connected to the middle side of the upper part of the vacuum kettle 10, a stirring shaft 19 is fixedly connected to the output end of the motor 3, a stirring impeller 18 is fixedly connected to the outside of the stirring shaft 19, a pressure sensor 20 is fixedly installed on the right side of the vacuum kettle 10, and the vacuum kettle 1 0 is fixedly connected with a feed pipe 4 on the right side of the upper part, and a first valve 5 is fixedly connected to the outside of the feed pipe 4. A second connecting pipe 11 is fixedly connected to the left side of the upper part of the vacuum kettle 10, and a vacuum pump 12 is fixedly connected to the lower part of the second connecting pipe 11. A first connecting pipe 9 is fixedly connected to the right part of the vacuum kettle 10, and a cooling component is arranged on the right part of the first connecting pipe 9. The cooling component includes a condensation tower 24, which is fixedly connected to the right part of the first connecting pipe 9. A condenser 6 is arranged on the upper part of the condensation tower 24, and a condensation pipe 23 is fixedly arranged inside the condenser 6. An exhaust pipe 22 is fixedly connected to the left part of the condensation pipe 23, and the lower part of the exhaust pipe 22 is fixedly connected to the upper part of the condensation tower 24. A heat absorption pipe 21 is arranged on the outside of the condensation pipe 23. A controller 25 is fixedly connected to the front part of the vacuum kettle 10.

[0024] By opening the first valve 5 of the feed pipe 4, ethyl formate is loaded into the vacuum kettle 10, and the air in the vacuum kettle 10 is extracted by the vacuum pump 12 through the second connecting pipe 11. The pressure in the vacuum kettle 10 can be read by the pressure sensor 20. At this time, the boiling point of ethanol can be reduced, which is conducive to accelerating the rapid evaporation of ethanol. When the steam heats the water in the water bath 16, the temperature display of the temperature sensor 1 is observed. After the temperature of the water bath 16 reaches an appropriate water temperature through the steam pipe 17, the water pump 13 is started to pump hot water into the side wall cavity of the vacuum kettle 10 through the water inlet pipe 14, so that the vacuum kettle 10 is heated. When the side wall cavity of the vacuum kettle 10 is filled with water, the water flows back to the water bath 16 from the reflux pipe 2 to continue to be heated, so as to realize circulation and improve The utilization rate of water is improved. Hot water enters from the bottom of the vacuum kettle 10 and then flows out from the top, which helps the vacuum kettle 10 to be wrapped by hot water, so that the vacuum kettle 10 is heated evenly, and the evaporation of ethanol is accelerated. Subsequently, the motor 3 is started by the controller 25, and the output end of the motor 3 drives the stirring shaft 19 to rotate. The stirring shaft 19 drives the stirring impeller 18 to be evenly heated, and the evaporation rate of ethanol is accelerated. The evaporated ethanol enters the condensation tower 24 from the first connecting pipe 9, and the ethanol enters the condenser 6 through the exhaust pipe 22 at the upper part of the condensation tower 24. The ethyl formate vapor can be cooled and liquefied through the condensation tube 23, so that ethyl formate and ethanol are separated from each other. The heat absorption tube 21 is coiled on the surface of the condensation tube 23, which is beneficial to improve the cooling efficiency of the condenser 6.

[0025] Reference Figure 1 , Figure 2 and Figure 3 The right part of the condensation tower 24 is fixedly connected with a discharge pipe 8, and a second valve 7 is fixedly installed on the outside of the discharge pipe 8. The vacuum kettle 10, the water bath pot 16 and the four corners of the bottom of the condensation tower 24 are fixedly connected with brackets 15. The stirring impeller 18 is rotatably connected to the inside of the vacuum kettle 10. The controller 25 is electrically connected with the water pump 13, the motor 3, the temperature sensor 1 and the pressure sensor 20. The vacuum pump 12 is arranged on the front side of the vacuum kettle 10.

[0026] By opening the second valve 7, the cooled ethanol is discharged through the discharge pipe 8. The bracket 15 is provided to support the vacuum kettle 10, the water bath 16 and the condensation tower 24. The stirring impeller 18 rotates inside the vacuum kettle 10 so that the ethanol is evenly heated under the stirring of the stirring impeller 18, thereby accelerating the evaporation rate of the ethanol. The controller 25 is electrically connected to the water pump 13, the motor 3, the temperature sensor 1 and the pressure sensor 20, so that the water pump 13, the motor 3, the temperature sensor 1 and the pressure sensor 20 can be controlled to operate and shut down. The vacuum pump 12 is located at the front side of the vacuum kettle 10 so that the air in the vacuum kettle 10 is extracted through the second connecting pipe 11 by the vacuum pump 12.

[0027] Working principle: When using this device, ethyl formate is loaded into the vacuum kettle 10 by opening the first valve 5 of the feed pipe 4, and the air in the vacuum kettle 10 is extracted by the vacuum pump 12 through the second connecting pipe 11. The pressure in the vacuum kettle 10 can be read by the pressure sensor 20. When the steam heats the water in the water bath 16, the temperature display of the temperature sensor 1 is observed. After the temperature of the water bath 16 reaches the appropriate water temperature through the steam pipe 17, the water pump 13 is started to pump hot water into the side wall cavity of the vacuum kettle 10 through the water inlet pipe 14, so that the vacuum kettle 10 is heated. When the side wall cavity of the vacuum kettle 10 is filled with water, the water flows back to the water bath 16 from the reflux pipe 2 to continue heating. , realizing circulation and improving the utilization rate of water, then starting the motor 3 through the controller 25, the motor 3 drives the stirring shaft 19 to rotate, the stirring shaft 19 drives the stirring impeller 18 to be evenly heated, and the evaporation rate of ethanol is accelerated, and the evaporated ethanol enters the condensation tower 24 from the first connecting pipe 9, and the ethanol enters the condenser 6 through the exhaust pipe 22 at the upper part of the condensation tower 24. The ethyl formate vapor can be cooled and liquefied through the condensation tube 23, so that ethyl formate and ethanol are separated from each other. The heat absorption tube 21 is coiled on the surface of the condensation tube 23, which is beneficial to improving the cooling efficiency of the condenser 6, and then the second valve 7 is opened to discharge the cooled ethanol through the discharge pipe 8.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An apparatus for extracting ethanol from ethyl formate, comprising a vacuum kettle (10), characterized in that: The left part of the vacuum kettle (10) is provided with a water bath (16), the left part of the water bath (16) is fixedly connected to a steam pipe (17), the right side of the water bath (16) is fixedly connected to a water inlet pipe (14), the right part of the water inlet pipe (14) is fixedly connected to a water pump (13), the water pump (13) is fixedly connected to the left part of the vacuum kettle (10), the left side of the upper part of the water bath (16) is fixedly installed with a temperature sensor (1), the left part of the vacuum kettle (10) is fixedly connected to a reflux pipe (2), the reflux pipe (2) is fixedly connected to the right side of the upper part of the water bath (16), the middle side of the upper part of the vacuum kettle (10) is fixedly connected to a motor (3), the output end of the motor (3) is fixedly connected to a stirring shaft (19), the outside of the stirring shaft (19) is fixedly connected to a stirring impeller (18), the right part of the vacuum kettle (10) is fixedly installed with a pressure sensor (20), the vacuum kettle (10) ) is fixedly connected to a feed pipe (4) on the right side of the upper part, and a first valve (5) is fixedly connected to the outside of the feed pipe (4); a second connecting pipe (11) is fixedly connected to the left side of the upper part of the vacuum kettle (10); a vacuum pump (12) is fixedly connected to the lower part of the second connecting pipe (11); a first connecting pipe (9) is fixedly connected to the right part of the vacuum kettle (10); a cooling component is arranged on the right part of the first connecting pipe (9); the cooling component comprises a condensation tower (24); the condensation tower (24) is fixedly connected to the right part of the first connecting pipe (9); a condenser (6) is arranged on the upper part of the condensation tower (24); a condensation pipe (23) is fixedly arranged inside the condenser (6); the left part of the condensation pipe (23) is fixedly connected to an exhaust pipe (22); the lower part of the exhaust pipe (22) is fixedly connected to the upper part of the condensation tower (24); and a heat absorption pipe (21) is arranged on the outside of the condensation pipe (23).

2. The ethanol extraction device in ethyl formate according to claim 1, characterized in that: The right part of the condensation tower (24) is fixedly connected to a discharge pipe (8), and a second valve (7) is fixedly installed on the outside of the discharge pipe (8).

3. The ethanol extraction device in ethyl formate according to claim 2, characterized in that: A controller (25) is fixedly connected to the front of the vacuum kettle (10).

4. The ethanol extraction device in ethyl formate according to claim 2, characterized in that: The four corners of the bottom of the vacuum kettle (10), the water bath (16) and the condensation tower (24) are all fixedly connected with brackets (15).

5. The device for extracting ethanol from ethyl formate according to claim 2, characterized in that: The stirring impeller (18) is rotatably connected to the interior of the vacuum kettle (10).

6. The device for extracting ethanol from ethyl formate according to claim 3, characterized in that: The controller (25) is electrically connected to the water pump (13), the motor (3), the temperature sensor (1) and the pressure sensor (20).

7. The device for extracting ethanol from ethyl formate according to claim 4, characterized in that: The vacuum pump (12) is arranged on the front side of the vacuum kettle (10).

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