A vaporization device for producing N-BOC-ethylenediamine

Abstract

The utility model discloses a kind of N-BOC-ethylenediamine production vaporizing device, including bucket body and support frame, the cavity is opened in the wall thickness of bucket body, the top of bucket body is provided with the connecting port being communicated with cavity, connecting port is fixed with connecting pipe in intercommunication, supporting frame is equipped with liquid power supply assembly being communicated with connecting pipe and cavity, the top inner wall of bucket body is movably connected with shaft, the outside of shaft is fixedly connected with multiple stirring rollers, the outside of shaft is fixedly connected with two scrapers, and the inner wall of bucket body is contacted with scraper, the top of shaft is fixedly connected with distributor, the utility model can not only be stirred by stirring roller to liquid raw material, so that liquid raw material is heated more evenly, but also can be dispersed further by distribution hole to liquid raw material, increase vaporization surface area, so as to improve vaporization rate, but also can prevent bucket body inner wall from scaling by scraper.

Description

Technical Field

[0001] This utility model relates to the field of ethylenediamine vaporization technology, and in particular to a vaporization device for the production of N-BOC-ethylenediamine. Background Technology

[0002] N-BOC-ethylenediamine is an important organic compound and chemical reagent. The vaporization of the raw material ethylenediamine in the production process of N-BOC-ethylenediamine is a key and necessary process step. The core reasons for this are to improve reaction efficiency, ensure reaction safety, and optimize product purity.

[0003] In the production process of N-BOC-ethylenediamine, it is often necessary to vaporize the liquid raw materials in order to enter the subsequent reaction stages. The vaporization devices commonly used in the prior art (falling film evaporators) have the following defects: the residence time is too long or local overheating, which easily leads to decomposition and coking, resulting in a decrease in product yield and purity. In addition, if the material fails to leave the heated wall quickly during the vaporization process, it will form polymers or coke, which will adhere to the inner wall of the tank, seriously affecting the stability of continuous production. In order to better address the above problems, promote the development of the industry's technical level, and improve core competitiveness, this application proposes a new composition structure that is different from the prior art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a vaporization device for the production of N-BOC-ethylenediamine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A vaporization device for the production of N-BOC-ethylenediamine includes a barrel and a support frame. A cavity is formed within the wall of the barrel. A connection port communicating with the cavity is located at the top of the barrel, and a connecting pipe is fixedly connected to the connection port. A liquid supply power assembly communicating with the connecting pipe and the cavity is mounted on the support frame. A rotating shaft is movably connected to the inner wall of the top of the barrel. Multiple stirring rollers are fixedly connected to the outer side of the rotating shaft. Two scrapers are fixedly connected to the outer side of the rotating shaft and contact the inner wall of the barrel. A distributor is fixedly connected to the top of the rotating shaft, and multiple distribution holes are formed on the bottom plate of the distributor. A drive assembly for rotating the rotating shaft is located on the outer wall of the top of the barrel.

[0006] As a further embodiment of this utility model, the liquid supply power assembly includes a water pump, which is fixed to the upper surface of the support frame by bolts. The pump's pumping end is connected to the cavity of the tank, and the pump's outlet end is connected to and fixed to the connecting pipe. A heater is fixedly connected to the upper surface of the support frame, and the heater is fixed to the bottom end of the connecting pipe.

[0007] As a further embodiment of this utility model, the drive assembly includes a geared motor, which is fixedly connected to the top outer wall of the barrel, and one end of the output shaft of the geared motor passes through the barrel and is fixed to the rotating shaft.

[0008] As a further embodiment of this utility model, the top of the barrel has two feed inlets, each of which is connected to and fixed with a feed pipe, and a T-shaped pipe is connected and fixed between the two feed pipes.

[0009] As a further embodiment of this utility model, the bottom of the barrel is provided with a heat transfer oil outlet communicating with the cavity, and a heat transfer oil outlet pipe is connected and fixed to the heat transfer oil outlet.

[0010] As a further improvement of this utility model, the top of the barrel is provided with an air outlet, and an air outlet pipe is fixedly connected to the air outlet.

[0011] As a further embodiment of this utility model, the bottom of the barrel is provided with a discharge port, and a discharge pipe is fixedly connected to the discharge port, with a valve fixed on the discharge pipe.

[0012] As a further embodiment of this utility model, the top plate of the barrel is provided with a cavity-connected heat transfer oil inlet, and a heat transfer oil inlet pipe is fixedly connected to the heat transfer oil inlet.

[0013] As a further embodiment of this invention, a temperature sensor is fixedly connected to the top outer wall of the barrel, and the detection end of the temperature sensor extends into the barrel.

[0014] The beneficial effects of this utility model are as follows: 1. In this utility model, the liquid raw material is stirred by the stirring roller, so that the liquid raw material is heated more evenly, and the distribution holes on the distributor further disperse the liquid raw material, increasing the vaporization surface area and thus improving the vaporization rate.

[0015] 2. In this utility model, the heat transfer oil circulation system achieves uniform heating of liquid raw materials. The heat transfer oil is heated by the heater in the cavity and then circulates repeatedly. The heat is transferred to the liquid raw materials through the inner wall of the barrel, which can quickly reach the vaporization conditions and avoid the problems of local overheating or uneven heating that are easy to occur in traditional direct heating methods, thus improving the vaporization efficiency.

[0016] 3. In this utility model, the scraper is used to scrape off the raw materials adhering to the inner wall in real time during the stirring process, preventing scale buildup on the inner wall of the tank from affecting the use of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the front side of a vaporization device for the production of N-BOC-ethylenediamine proposed in this utility model. Figure 2This is a three-dimensional structural diagram of the rear side of a vaporization device for the production of N-BOC-ethylenediamine proposed in this utility model.

[0018] Figure 3 This is a partial cross-sectional view of a vaporization device for the production of N-BOC-ethylenediamine proposed in this utility model.

[0019] In the diagram: 1. Barrel body; 2. Heat transfer oil inlet pipe; 3. Air outlet pipe; 4. Gear motor; 5. T-connector; 6. Feed pipe; 7. Temperature sensor; 8. Connecting pipe; 9. Heat transfer oil outlet pipe; 10. Heater; 11. Water pump; 12. Discharge pipe; 13. Cavity; 14. Stirring roller; 15. Rotating shaft; 16. Scraper; 17. Distribution hole; 18. Distributor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are all within the protection scope of the present utility model.

[0021] Reference Figures 1-3 A vaporization device for the production of N-BOC-ethylenediamine includes a barrel body 1 and a support frame. A cavity 13 is formed in the wall of the barrel body 1. A connection port communicating with the cavity 13 is opened at the top of the barrel body 1. A connecting pipe 8 is fixedly connected to the connection port. A liquid supply power assembly communicating with the connecting pipe 8 and the cavity 13 is provided on the support frame. The liquid supply power assembly includes a water pump 11. The water pump 11 is fixed to the upper surface of the support frame by bolts, and the water pump 11's pumping end is connected to the cavity 13 of the barrel body 1. The water pump 11's outlet end is connected to the connecting pipe 8. A heater 10 is fixed to the upper surface of the support frame by bolts, and the heater 10 is fixed to the bottom end of the connecting pipe 8. The heater 10 is a typ3000 model. The water pump 11 draws heat transfer oil from the cavity 13 at the bottom of the barrel body 1. After being heated by the heater 10, the oil enters the cavity 13 at the top of the barrel body 1 through the connecting pipe 8. This cycle is repeated, and the liquid raw material is vaporized by heat transfer through the inner wall of the barrel body 1.

[0022] Specifically, a rotating shaft 15 is rotatably connected to the inner wall of the top of the barrel 1. Multiple stirring rollers 14 are bolted to the outer side of the rotating shaft 15. The rotating shaft 15 drives the stirring rollers 14 to rotate, causing them to stir the material. Two scrapers 16 are bolted to the outer side of the rotating shaft 15, and the scrapers 16 are in contact with the inner wall of the barrel 1. The rotation of the rotating shaft 15 causes the scrapers 16 to rotate, scraping away the raw material adhering to the inner wall of the barrel 1 to prevent scaling. A distributor 18 is bolted to the top of the rotating shaft 15, and the bottom plate of the distributor 18 has a... Multiple distribution holes 17, distributor 18 model is DN1130, rotating shaft 15 rotates to make distributor 18 rotate, thereby further dispersing the liquid raw material in distributor 18. The top outer wall of the barrel 1 is provided with a drive assembly that drives the rotating shaft 15 to rotate. The drive assembly includes a geared motor 4, model is R47DM90S4. The geared motor 4 is fixed to the top outer wall of the barrel 1 by bolts. One end of the output shaft of the geared motor 4 passes through the barrel 1 and is fixed to the rotating shaft 15. The rotation of the geared motor 4 makes the rotating shaft 15 rotate.

[0023] It should be noted that the top of the barrel 1 has two feed inlets, each connected to a feed pipe 6. A three-way pipe 5 connects the two feed pipes 6. The feed inlets are located above the distributor 18. The three-way pipe 5 is connected to an external feeding device, allowing external liquid raw materials to enter the barrel 1 through the three-way pipe 5 and the feed pipe 6. The liquid raw materials then enter the distributor 18 through the feed pipe 6, are dispersed through the distribution holes 17, and fall into the bottom space of the barrel 1. The top of the barrel 1 has a vent, connected to a vent pipe 3. The vaporized gas is discharged from the vent pipe 3. The bottom of the barrel 1 has a discharge port, connected to a discharge outlet. Pipe 12, a valve is fixed on the discharge pipe 12, and a heat transfer oil outlet communicating with cavity 13 is opened at the bottom of the barrel 1. A heat transfer oil outlet pipe 9 is fixedly connected to the heat transfer oil outlet. The heat transfer oil in cavity 13 is discharged through the heat transfer oil outlet pipe 9. A heat transfer oil inlet communicating with cavity 13 is opened on the top plate of the barrel 1. A heat transfer oil inlet pipe 2 is fixedly connected to the heat transfer oil inlet. Heat transfer oil is added into cavity 13 of barrel 1 through heat transfer oil inlet pipe 2. A temperature sensor 7 is fixed to the top outer wall of barrel 1 by bolts, and the detection end of temperature sensor 7 extends into barrel 1. Temperature sensor 7 detects the temperature inside barrel 1. The operator adjusts the heating temperature of heater 10 based on the data detected by temperature sensor 7 to maintain vaporization conditions.

[0024] Working principle: Feeding: Connect the three-way pipe 5 to the external feeding equipment so that the external liquid raw material enters the barrel 1 through the three-way pipe 5 and the feed pipe 6. The liquid raw material enters the distributor 18 through the feed pipe 6, is dispersed through the distribution hole 17, and falls into the bottom space of the barrel 1. Heating and vaporization: Heat transfer oil is added into the cavity 13 of the barrel 1 through the heat transfer oil inlet pipe 2. The water pump 11 is started and the heater 10 is started. The water pump 11 draws the heat transfer oil from the bottom cavity 13 of the barrel 1. After being heated by the heater 10, it enters the top cavity 13 of the barrel 1 through the connecting pipe 8. The process is repeated, and the liquid raw material is vaporized by heat transfer through the inner wall of the barrel 1.

[0025] Stirring and cleaning: Start the geared motor 4. The rotation of the geared motor 4 causes the rotating shaft 15 to drive the stirring roller 14 to rotate, so that the stirring roller 14 stirs the material. At the same time, the rotation of the rotating shaft 15 causes the scraper 16 to rotate, so that the scraper 16 scrapes off the raw material adhering to the inner wall of the barrel 1 to prevent scale buildup on the inner wall. At the same time, the rotation of the rotating shaft 15 causes the distributor 18 to rotate, so that the liquid raw material in the distributor 18 is further dispersed, and the liquid raw material can be more fully vaporized.

[0026] Gas-liquid separation: The vaporized gas is discharged from the gas outlet pipe 3, and the vaporized residue is discharged through the material outlet pipe 12.

[0027] Furthermore, the terms "installation," "setup," "connection," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral constructions; they can refer to mechanical or electrical connections; they can refer to direct connections or indirect connections via an intermediate medium, or internal connections between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

Claims

1. A vaporization device for the production of N-BOC-ethylenediamine, comprising a barrel (1) and a support frame, characterized in that, The barrel (1) has a cavity (13) inside its wall. The top of the barrel (1) has a connection port that communicates with the cavity (13). A connecting pipe (8) is fixedly connected inside the connection port. The support frame has a liquid supply power assembly that communicates with the connecting pipe (8) and the cavity (13). The top inner wall of the barrel (1) is movably connected to a rotating shaft (15). Multiple stirring rollers (14) are fixedly connected to the outside of the rotating shaft (15). Two scrapers (16) are fixedly connected to the outside of the rotating shaft (15), and the scrapers (16) are in contact with the inner wall of the barrel (1). A distributor (18) is fixedly connected to the top of the rotating shaft (15). Multiple distribution holes (17) are opened on the bottom plate of the distributor (18). The top outer wall of the barrel (1) has a drive assembly that drives the rotating shaft (15) to rotate.

2. The vaporization apparatus for producing N-BOC-ethylenediamine according to claim 1, characterized in that, The liquid supply power assembly includes a water pump (11), which is fixed to the upper surface of the support frame by bolts. The pump (11) is connected to the cavity (13) of the tank (1) and the outlet of the pump (11) is connected to the connecting pipe (8). A heater (10) is fixedly connected to the upper surface of the support frame and the heater (10) is fixed to the bottom end of the connecting pipe (8).

3. The vaporization apparatus for producing N-BOC-ethylenediamine according to claim 1, characterized in that, The drive assembly includes a geared motor (4), which is fixedly connected to the top outer wall of the barrel (1). One end of the output shaft of the geared motor (4) passes through the barrel (1) and is fixed to the rotating shaft (15).

4. The vaporization apparatus for producing N-BOC-ethylenediamine according to claim 1, characterized in that, The top of the barrel (1) has two feed inlets, and each feed inlet is connected to a feed pipe (6). A three-way pipe (5) is connected between the two feed pipes (6).

5. The vaporization apparatus for producing N-BOC-ethylenediamine according to claim 1, characterized in that, The bottom of the barrel (1) is provided with a heat transfer oil outlet that communicates with the cavity (13), and a heat transfer oil outlet pipe (9) is fixedly connected to the heat transfer oil outlet.

6. The vaporization apparatus for producing N-BOC-ethylenediamine according to claim 1, characterized in that, The top of the barrel (1) is provided with an air outlet, and an air outlet pipe (3) is fixedly connected inside the air outlet.

7. The vaporization apparatus for producing N-BOC-ethylenediamine according to claim 1, characterized in that, The bottom of the barrel (1) is provided with a discharge port, and a discharge pipe (12) is fixedly connected to the discharge port. A valve is fixed on the discharge pipe (12).

8. A vaporization apparatus for the production of N-BOC-ethylenediamine according to claim 5, characterized in that, The top plate of the barrel (1) is provided with a cavity (13) connected to a heat transfer oil inlet, and a heat transfer oil inlet pipe (2) is fixedly connected to the heat transfer oil inlet.

9. A vaporization apparatus for the production of N-BOC-ethylenediamine according to claim 1, characterized in that, A temperature sensor (7) is fixedly connected to the top outer wall of the barrel (1), and the detection end of the temperature sensor (7) extends into the barrel (1).

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