Acetoacetic acid (N-benzyl-N-methyl) aminoethyl ester rectification device

Abstract

The utility model relates to the technical field of rectification devices, in particular to an aminoethyl acetoacetate rectification device, which improves the convenience of preheating treatment before aminoethyl acetate rectification, reduces the heating energy consumption, improves the waste heat recovery effect and improves the working efficiency. Comprising a heating tank and an exhaust hood, the device further comprises a heat exchange device, a heating device, a first conveying pipe, a first storage cylinder and a second storage cylinder, the input end of the first conveying pipe is communicated with the exhaust hood, the output end of the first conveying pipe is communicated with the heat exchange device, and the heat exchange device is used for collecting waste heat of materials needing to be rectified through evaporated gas heat and collecting condensed materials. The first storage cylinder and the second storage cylinder are both arranged on the side portion of the heating tank and communicate with the heat exchange device, and the heating device is arranged in the heating tank and used for heating the interior of the heating tank.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation devices, in particular to a distillation device for (N-benzyl-N-methyl) aminoethyl acetoacetate. Background Art

[0002] (N-Benzyl-N-methyl)aminoethyl acetoacetate is an important organic compound and is widely used in the fields of medicine, pesticides, dyes, etc.

[0003] Currently in the prior art, such as the patent with authorization announcement number CN218811689U, the utility model discloses a distillation device for producing diethylaminoethyl methacrylate, which belongs to the technical field of distillation devices, including a device bottom plate, an outer shell is fixedly arranged on the bottom plate, an inner shell is fixedly arranged inside the outer shell, a heating chamber is provided between the outer shell and the inner shell, a driving motor is fixedly arranged on the top of the outer shell, a rotating shaft is fixedly arranged on the output end of the motor, a plurality of stirring rods are fixedly arranged on the rotating shaft, and two connecting rods are fixedly arranged on the rotating shaft.

[0004] However, it was found during the use of the device that it is not convenient to use the heat of the evaporating gas to preheat the materials to be distilled, which increases the energy consumption of material heating, reduces the utilization rate of waste heat, and reduces work efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a distillation device for (N-benzyl-N-methyl)aminoethyl acetoacetate, which improves the convenience of preheating treatment before distillation of aminoethyl ester, reduces heating energy consumption, improves waste heat recovery effect, and improves work efficiency.

[0006] The utility model discloses an aminoethyl acetoacetate distillation device, comprising a heating tank and an exhaust hood, wherein the exhaust hood is connected and arranged at the top of the heating tank; further comprising a heat exchange device, a heating device, a first conveying pipe, a first storage cylinder and a second storage cylinder, wherein the input end of the first conveying pipe is connected with the exhaust hood, and the output end of the first conveying pipe is connected with the heat exchange device, the heat exchange device is used for utilizing the heat of the evaporated gas to heat the residual heat of the material to be distilled, and the heat exchange device is used for collecting the condensed material, the first storage cylinder and the second storage cylinder are both arranged at the side of the heating tank, the first storage cylinder and the second storage cylinder are respectively connected with the heat exchange device, the heating device is arranged inside the heating tank, and the heating device is used for heating the inside of the heating tank; The aminoethyl ester is put into the first storage cylinder for storage. When the heating device heats and distills the aminoethyl ester in the heating tank, the evaporated gas is transported to the heat exchange device through the exhaust hood and the first delivery pipe. At the same time, the aminoethyl ester in the first storage cylinder is transported to the heat exchange device, so that the evaporated gas preheats the aminoethyl ester entering the heat exchange device. The preheated aminoethyl ester is transported to the second storage cylinder for storage. At the same time, the evaporated gas is cooled due to the temperature of the aminoethyl ester, so that the condensed material is collected by the heat exchange device, and the preheated material in the second storage cylinder is transported to the heating tank, thereby improving the convenience of preheating treatment of aminoethyl ester before distillation, reducing heating energy consumption, and improving work efficiency.

[0007] Preferably, the heat exchange device includes a conveying device, a collecting box, a heat exchange box, two groups of conveying boxes, multiple groups of heat exchange tubes, multiple groups of guide plates and a discharge pipe. The heat exchange box is installed at the top of the collecting box, and a discharge port is provided at the bottom of the heat exchange box, and the discharge port is communicated with the inside of the collecting box. The two groups of conveying boxes are respectively installed at the upper and lower parts of the inner wall of the heat exchange box, and the upper and lower ends of the multiple groups of heat exchange tubes are respectively communicated with the inside of the two groups of conveying boxes. The multiple groups of guide plates are respectively installed on the inner wall of the heat exchange box in staggered positions. The output end of the first conveying pipe is communicated and arranged on the upper part of the outer wall of the heat exchange box. The upper conveying box is connected to the first storage cylinder through the conveying device, and the lower conveying box is connected to the second storage cylinder through the conveying device. The conveying device is used to convey aminoethyl ester. The discharge pipe The communication is arranged at the lower part of the outer wall of the heat exchange box; the conveying device extracts the aminoethyl ester in the first storage cylinder, and conveys the extracted aminoethyl ester to the upper conveying box, and then the aminoethyl ester is conveyed to the lower conveying box through the diversion of multiple groups of heat exchange tubes. At this time, the first conveying pipe conveys the evaporated gas to the upper part of the heat exchange box, and guides and conveys the steam through multiple groups of guide plates, so that the steam is fully in contact with the multiple groups of heat exchange tubes, thereby improving the effect of cooling the steam by heat exchange of the multiple groups of heat exchange tubes, improving the heating effect of the steam on the aminoethyl ester inside the heat exchange tubes, and improving the energy utilization rate. The condensed material enters the collection box through the discharge port at the bottom of the heat exchange box for collection, and the gas pressure is discharged to the outside through the discharge pipe, thereby improving the convenience of using the device.

[0008] Preferably, the conveying device includes a second conveying pipe, a first pump body, a third conveying pipe, a fourth conveying pipe and a second pump body, the input end of the second conveying pipe is connected to the first storage cylinder, the output end of the second conveying pipe is connected to the upper conveying box, the first pump body is connected and arranged on the second conveying pipe, the input end of the third conveying pipe is connected to the lower conveying box, the output end of the third conveying pipe is connected to the second storage cylinder, the input end of the fourth conveying pipe is connected to the second storage cylinder, the output end of the fourth conveying pipe is connected to the heating tank, and the second pump body is connected and arranged on the fourth conveying pipe; the first pump body is opened to convey the aminoethyl ester in the first storage cylinder to the upper conveying box through the second conveying pipe, and then the preheated aminoethyl ester in the lower conveying box is conveyed to the second storage cylinder for storage through the third conveying pipe, and the second pump body is opened to convey the aminoethyl ester in the second storage cylinder to the heating tank through the fourth conveying pipe, thereby improving the convenience of automatic conveyance of the aminoethyl ester after preheating.

[0009] Preferably, the heating device includes a heat-conducting inner liner and an electric heating tube, the heat-conducting inner liner is installed on the inner wall of the heating tank, and the electric heating tube is arranged on the inner wall of the heat-conducting inner liner; the heat-conducting inner liner is heated by the electric heating tube, so that the heat-conducting inner liner heats the aminoethyl ester in the heating tank through heat conduction, thereby improving the uniformity of heating.

[0010] Preferably, it also includes an electric heater, which is connected to the second storage cylinder. By arranging the electric heater, the convenience of heating the aminoethyl ester in the second storage cylinder is improved, and the efficiency of the aminoethyl ester entering the heating tank for distillation processing is improved.

[0011] Preferably, it also includes an exhaust cap, which is installed on the output end of the exhaust pipe; by setting the exhaust cap, the protection effect of the output end of the exhaust pipe is improved.

[0012] Preferably, the top surfaces of the multiple groups of guide plates are arranged as inclined surfaces, so as to improve the convenience of guiding and discharging the material condensed on the top of the guide plate downward.

[0013] Compared with the prior art, the utility model has the following beneficial effects: aminoethyl ester to be distilled is placed in the first storage cylinder for storage; when the heating device heats and distills the aminoethyl ester in the heating tank, the evaporated gas is transported to the heat exchange device through the exhaust hood and the first delivery pipe, and at the same time, the aminoethyl ester in the first storage cylinder is transported to the heat exchange device, so that the evaporated gas preheats the aminoethyl ester entering the heat exchange device, and the preheated aminoethyl ester is transported to the second storage cylinder for storage; at the same time, the evaporated gas is cooled due to the temperature of the aminoethyl ester, so that the condensed material is collected by the heat exchange device, and the preheated material in the second storage cylinder is transported to the heating tank, thereby improving the convenience of preheating treatment of the aminoethyl ester before distillation, reducing heating energy consumption, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the axonometric structure of the utility model;

[0015] Figure 2 is an axonometric structural diagram of the connection between the exhaust hood and the first conveying pipe, etc.;

[0016] Figure 3 It is a schematic diagram of the axonometric local structure of the connection between the heat exchange box and the guide plate;

[0017] Figure 4 It is a schematic diagram of the axonometric structure of the connection between the collection box and the heat exchange box;

[0018] Figure 5 It is a schematic diagram of the axonometric structure of the connection between the second storage cylinder and the electric heater, etc.

[0019] Markings in the attached figure: 1. heating tank; 2. exhaust hood; 3. first delivery pipe; 4. first storage cylinder; 5. second storage cylinder; 6. collecting box; 7. heat exchange box; 8. delivery box; 9. heat exchange tube; 10. guide plate; 11. discharge pipe; 12. second delivery pipe; 13. first pump body; 14. third delivery pipe; 15. fourth delivery pipe; 16. second pump body; 17. heat-conducting liner; 18. electric heating tube; 19. electric heater; 20. exhaust cap. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] Example 1

[0022] like Figures 1 to 5 As shown, a N-benzyl-N-methylaminoethyl acetoacetate distillation device of the utility model comprises a heating tank 1 and an exhaust hood 2, wherein the exhaust hood 2 is connected and arranged at the top of the heating tank 1; further comprising a heat exchange device, a heating device, a first conveying pipe 3, a first storage cylinder 4 and a second storage cylinder 5, wherein the input end of the first conveying pipe 3 is connected to the exhaust hood 2, and the output end of the first conveying pipe 3 is connected to the heat exchange device, the heat exchange device is used to utilize the heat of the evaporated gas to distill the waste heat of the material to be distilled, and the heat exchange device is used to collect the condensed material, the first storage cylinder 4 and the second storage cylinder 5 are both arranged at the side of the heating tank 1, the first storage cylinder 4 and the second storage cylinder 5 are respectively connected to the heat exchange device, the heating device is arranged inside the heating tank 1, and the heating device is used to heat the inside of the heating tank 1;

[0023] like Figure 3As shown, the heat exchange device includes a conveying device, a collecting box 6, a heat exchange box 7, two groups of conveying boxes 8, multiple groups of heat exchange tubes 9, multiple groups of guide plates 10 and a discharge pipe 11. The heat exchange box 7 is installed at the top of the collecting box 6. The bottom of the heat exchange box 7 is provided with a discharge port, which is communicated with the inside of the collecting box 6. The two groups of conveying boxes 8 are respectively installed at the upper and lower parts of the inner wall of the heat exchange box 7. The upper and lower ends of the multiple groups of heat exchange tubes 9 are respectively communicated with the inside of the two groups of conveying boxes 8. The multiple groups of guide plates 10 are respectively installed on the inner wall of the heat exchange box 7 in a staggered manner. The output end of the first conveying pipe 3 is communicated and arranged at the upper part of the outer wall of the heat exchange box 7. The upper conveying box 8 is communicated with the first storage cylinder 4 through the conveying device. The lower conveying box 8 is communicated with the second storage cylinder 5 through the conveying device. The conveying device is used to convey aminoethyl ester. The discharge pipe 11 is communicated and arranged at the lower part of the outer wall of the heat exchange box 7.

[0024] In this embodiment, the aminoethyl ester to be distilled is placed in the first storage cylinder 4 for storage. When the heating device heats and distills the aminoethyl ester in the heating tank 1, the evaporated gas is transported to the heat exchange device through the exhaust hood 2 and the first delivery pipe 3. At the same time, the aminoethyl ester in the first storage cylinder 4 is transported to the heat exchange device, so that the evaporated gas will preheat the aminoethyl ester entering the heat exchange device. The preheated aminoethyl ester is transported to the second storage cylinder 5 for storage. At the same time, the evaporated gas is cooled due to the temperature of the aminoethyl ester, so that the condensed material is collected by the heat exchange device, and the preheated material in the second storage cylinder 5 is transported to the heating tank 1, thereby improving the convenience of preheating treatment of the aminoethyl ester before distillation, reducing heating energy consumption, and improving work efficiency.

[0025] Example 2

[0026] On the basis of Example 1, a distillation device for N-benzyl-N-methylaminoethyl acetoacetate of the utility model is as follows: Figure 1 As shown, the conveying device includes a second conveying pipe 12, a first pump body 13, a third conveying pipe 14, a fourth conveying pipe 15 and a second pump body 16, the input end of the second conveying pipe 12 is communicated with the first storage cylinder 4, the output end of the second conveying pipe 12 is communicated with the upper conveying box 8, the first pump body 13 is communicated and arranged on the second conveying pipe 12, the input end of the third conveying pipe 14 is communicated with the lower conveying box 8, the output end of the third conveying pipe 14 is communicated with the second storage cylinder 5, the input end of the fourth conveying pipe 15 is communicated with the second storage cylinder 5, the output end of the fourth conveying pipe 15 is communicated with the heating tank 1, and the second pump body 16 is communicated and arranged on the fourth conveying pipe 15;

[0027] like Figure 2 As shown, the heating device includes a heat-conducting inner liner 17 and an electric heating tube 18. The heat-conducting inner liner 17 is installed on the inner wall of the heating tank 1, and the electric heating tube 18 is arranged on the inner wall of the heat-conducting inner liner 17;

[0028] like Figure 5As shown, it also includes an electric heater 19, which is connected and arranged on the second storage cylinder 5;

[0029] like Figure 3 As shown, it also includes an exhaust cap 20, which is mounted on the output end of the exhaust pipe 11;

[0030] like Figure 3 It is shown that the top surfaces of the plurality of guide plates 10 are arranged as inclined surfaces;

[0031] In this embodiment, the conveying device extracts the aminoethyl ester in the first storage cylinder 4, and the extracted aminoethyl ester is conveyed to the upper conveying box 8. Then, the aminoethyl ester is conveyed to the lower conveying box 8 through the diversion of multiple groups of heat exchange tubes 9. At this time, the first conveying pipe 3 conveys the evaporated gas to the upper part of the heat exchange box 7, and the steam is guided and conveyed through multiple groups of guide plates 10, so that the steam is fully in contact with the multiple groups of heat exchange tubes 9, thereby improving the effect of heat exchange of the multiple groups of heat exchange tubes 9 on cooling the steam, improving the heating effect of the steam on the aminoethyl ester inside the heat exchange tubes 9, and improving the energy utilization rate. The condensed material is transferred to the heat exchange tube 9 through the heat exchange tube 9. The discharge port at the bottom of the hot box 7 enters the collecting box 6 for collection, and the gas pressure is discharged outward through the discharge pipe 11, which improves the convenience of using the device. The first pump body 13 is opened to transport the aminoethyl ester in the first storage cylinder 4 to the upper conveying box 8 through the second conveying pipe 12. Thereafter, the preheated aminoethyl ester in the lower conveying box 8 is transported to the second storage cylinder 5 through the third conveying pipe 14 for storage. By opening the second pump body 16, the aminoethyl ester in the second storage cylinder 5 is transported to the heating tank 1 through the fourth conveying pipe 15, which improves the convenience of automatic transportation of the aminoethyl ester after preheating.

[0032] The utility model discloses an N-benzyl-N-methylaminoethyl acetoacetate distillation device. When the device is working, the aminoethyl ester to be distilled is placed in a first storage cylinder 4 for storage. When the heating device heats and distills the aminoethyl ester in a heating tank 1, the evaporated gas is transported to the heat exchange device through an exhaust hood 2 and a first delivery pipe 3. At the same time, the aminoethyl ester in the first storage cylinder 4 is transported to the heat exchange device, so that the evaporated gas preheats the aminoethyl ester entering the heat exchange device. The preheated aminoethyl ester is transported to the second storage cylinder 5 for storage. At the same time, the evaporated gas is cooled due to the temperature of the aminoethyl ester, so that the condensed material is collected by the heat exchange device. The preheated material in the second storage cylinder 5 is transported to the heating tank 1.

[0033] The first pump body 13, the second pump body 16, the electric heating tube 18 and the electric heater 19 of the N-benzyl-N-methylaminoethyl acetoacetate distillation device of the utility model are purchased on the market, and the technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in this field to make creative labor.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A (N-benzyl-N-methyl)aminoethyl acetoacetate distillation device, comprising a heating tank (1) and an exhaust hood (2), wherein the exhaust hood (2) is connected to and arranged at the top of the heating tank (1); characterized in that: The invention also comprises a heat exchange device, a heating device, a first conveying pipe (3), a first storage cylinder (4) and a second storage cylinder (5); the input end of the first conveying pipe (3) is connected to the exhaust hood (2); the output end of the first conveying pipe (3) is connected to the heat exchange device; the heat exchange device is used to utilize the heat of evaporated gas to dissipate the waste heat of the material to be distilled; and the heat exchange device is used to collect the condensed material; the first storage cylinder (4) and the second storage cylinder (5) are both arranged on the side of the heating tank (1); the first storage cylinder (4) and the second storage cylinder (5) are respectively connected to the heat exchange device; the heating device is arranged inside the heating tank (1); the heating device is used to heat the inside of the heating tank (1).

2. A (N-benzyl-N-methyl)aminoethyl acetoacetate distillation device as claimed in claim 1, characterized in that: The heat exchange device comprises a conveying device, a collecting box (6), a heat exchange box (7), two groups of conveying boxes (8), a plurality of groups of heat exchange tubes (9), a plurality of groups of guide plates (10) and a discharge pipe (11); the heat exchange box (7) is installed at the top of the collecting box (6); a discharge port is provided at the bottom of the heat exchange box (7), and the discharge port is communicated with the inside of the collecting box (6); the two groups of conveying boxes (8) are respectively installed at the upper and lower parts of the inner wall of the heat exchange box (7); the upper and lower ends of the plurality of groups of heat exchange tubes (9) are respectively connected to the two groups of conveying boxes. The delivery box (8) is connected, and a plurality of guide plates (10) are respectively installed in staggered positions on the inner wall of the heat exchange box (7). The output end of the first delivery pipe (3) is connected and arranged on the upper part of the outer wall of the heat exchange box (7). The upper delivery box (8) is connected to the first storage cylinder (4) through a delivery device, and the lower delivery box (8) is connected to the second storage cylinder (5) through a delivery device. The delivery device is used to deliver aminoethyl ester. The discharge pipe (11) is connected and arranged on the lower part of the outer wall of the heat exchange box (7).

3. A (N-benzyl-N-methyl)aminoethyl acetoacetate distillation device as claimed in claim 2, characterized in that: The conveying device comprises a second conveying pipe (12), a first pump body (13), a third conveying pipe (14), a fourth conveying pipe (15) and a second pump body (16); the input end of the second conveying pipe (12) is connected to the first storage cylinder (4); the output end of the second conveying pipe (12) is connected to the upper conveying box (8); the first pump body (13) is connected and arranged on the second conveying pipe (12); the input end of the third conveying pipe (14) is connected to the lower conveying box (8); the output end of the third conveying pipe (14) is connected to the second storage cylinder (5); the input end of the fourth conveying pipe (15) is connected to the second storage cylinder (5); the output end of the fourth conveying pipe (15) is connected to the heating tank (1); and the second pump body (16) is connected and arranged on the fourth conveying pipe (15).

4. A (N-benzyl-N-methyl)aminoethyl acetoacetate distillation device as claimed in claim 1, characterized in that: The heating device comprises a heat-conducting inner container (17) and an electric heating pipe (18); the heat-conducting inner container (17) is mounted on the inner wall of the heating tank (1), and the electric heating pipe (18) is arranged on the inner wall of the heat-conducting inner container (17).

5. A (N-benzyl-N-methyl)aminoethyl acetoacetate distillation device as claimed in claim 1, characterized in that: It also includes an electric heater (19), which is arranged in communication with the second storage cylinder (5).

6. A (N-benzyl-N-methyl)aminoethyl acetoacetate distillation device as claimed in claim 2, characterized in that: It also includes an exhaust cap (20), which is mounted on the output end of the exhaust pipe (11).

7. A (N-benzyl-N-methyl)aminoethyl acetoacetate distillation device as claimed in claim 2, characterized in that: The top surfaces of the multiple groups of guide plates (10) are arranged as inclined surfaces.

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