Monomer NVP rectification, collection and storage device

Abstract

The utility model relates to the technical field of monomer NVP rectification, and discloses a monomer NVP rectification collection and storage device which comprises a base, a rectification tower is arranged on the base, a rectification bottle is arranged at the top of the rectification tower, a feeding port is connected to the rectification bottle, a condensation pipe is arranged on the right side of the rectification bottle, a coil pipe is arranged in the condensation pipe, and the upper end and the lower end of the coil pipe extend out of the condensation pipe. The rectification bottle is connected with the condensation pipe, a plurality of liquid collection boxes are arranged at the bottom of the condensation pipe, the liquid collection boxes are located on the base, a liquid collection pipe is arranged above the liquid collection boxes, the liquid collection pipe is of a secondary bending structure, and the top of the liquid collection pipe is rotationally connected with the lower end of the coil pipe; and a driving assembly for controlling the liquid collecting pipe to rotate is arranged below the condensation pipe, the tops of the multiple liquid collecting boxes are all connected with liquid inlets, and the multiple liquid inlets are all located on the rotating path of the bottom of the liquid collecting pipe. According to the utility model, classified collection can be carried out according to different boiling points, the efficiency is greatly improved, and accurate separation of rectification is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of monomer NVP distillation, in particular to a monomer NVP distillation collection and storage device. Background Art

[0002] PVP stands for polyvinylpyrrolidone. Polyvinylpyrrolidone is a non-ionic polymer compound. PVP is produced from the monomer vinylpyrrolidone (NVP) through bulk polymerization, solution polymerization, and other methods. In the PVP production process, the monomer NVP is generally refined by distillation.

[0003] The document of the existing application publication number CN219231445U discloses a purification and distillation device, including a distillation tower; a distillation bottle is provided at the central position of the top of the distillation tower, a dewatering bottle is provided on one side of the top of the distillation bottle, a circulating cooler is provided on the other side of the top of the distillation bottle, a cooling shell is provided at one end of the circulating cooler, a heat conducting block is provided inside the cooling shell, and a collecting bottle is provided at the central position inside the heat conducting block; the utility model adopts a dewatering bottle, a color-changing silica gel and a blocking plate and an air-permeable hole structure, the dewatering bottle is installed at the steam outlet position, and then the butterfly valve is opened to guide the heated and evaporated water vapor into the dewatering bottle, and then the steam contacts the color-changing silica gel through the air-permeable hole, and the color-changing silica gel absorbs the water vapor, thereby avoiding the need to add color-changing silica gel into tetrachloroethylene and the need for personnel to filter and remove the color-changing silica gel in the later stage, avoiding personnel from being harmed by tetrachloroethylene, and reducing the work intensity of personnel, thereby increasing the work efficiency of personnel.

[0004] However, this solution still has shortcomings. During the purification distillation process, only water vapor is processed, while different impurities exist in the internal mixture, which cannot be accurately separated, and the purity of the distilled product is low.

[0005] Therefore, those skilled in the art urgently need to develop a monomer NVP distillation collection and storage device. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a monomer NVP distillation collection and storage device.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a monomer NVP distillation collection and storage device, comprising a base, a distillation tower is provided on the base, a distillation flask is provided on the top of the distillation tower, a feeding port is connected to the distillation flask, a condenser is provided on the right side of the distillation flask, a coil is provided inside the condenser, a condenser is extended from the upper and lower ends of the coil, the distillation flask is connected to the condenser, a liquid collecting box is provided at the bottom of the condenser, the liquid collecting box is located on the base, there are multiple liquid collecting boxes, a liquid collecting pipe is provided above the multiple liquid collecting boxes, the liquid collecting pipe is a secondary bending structure, the top of the liquid collecting pipe is rotatably connected to the lower end of the coil, a driving component for controlling the rotation of the liquid collecting pipe is provided below the condenser, the tops of the multiple liquid collecting boxes are connected to liquid inlets, and the multiple liquid inlets are located on the rotating path of the bottom of the liquid collecting pipe.

[0008] Preferably, the upper and lower ends of the condenser are connected to a water outlet pipe and a water inlet pipe in sequence.

[0009] Preferably, the top of the distillation flask is connected to a steam outlet, the steam outlet is an inverted cone structure, the top of the steam outlet is connected to a steam outlet pipe, and the end of the steam outlet pipe away from the steam outlet is connected to the upper end of the coil.

[0010] Preferably, the driving assembly includes a servo motor connected to the bottom of the condenser tube, the output end of the servo motor is connected to a driving gear, the liquid collecting tube is sleeved with a driven gear, and the driving gear and the driven gear are meshed with each other.

[0011] Preferably, the liquid collecting tube is Z-shaped, the top of the liquid collecting tube is inserted into the lower end of the coil, and a tube sleeve is provided at the connection between the liquid collecting tube and the coil.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] In the utility model, classified collection can be carried out according to different boiling points. It is only necessary to control the rotation of the liquid collecting pipe through the driving component to store products with different boiling points separately, and the condensed liquid is respectively put into different liquid collecting boxes, which greatly improves the efficiency and realizes the precise separation of distillation; the liquid collecting pipe is plug-in connected to the coil, and the outside is wrapped and protected by a pipe sleeve to avoid the risk of leakage. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 for Figure 1 A magnified view of the structure in the middle.

[0016] In the figure: 1-base; 2-distillation tower; 3-distillation flask; 31-feeding port; 32-steam outlet; 33-steam outlet pipe; 4-condenser; 41-water outlet pipe; 42-water inlet pipe; 43-coil; 5-liquid collecting box; 6-servo motor; 7-driving gear; 8-driven gear; 9-pipe sleeve; 10-liquid collecting pipe. DETAILED DESCRIPTION

[0017] The present invention is described below in conjunction with the accompanying drawings and specific embodiments of the present invention. The description herein is intended only to explain the present invention and is not intended to limit the present invention. Based on the embodiments of the present invention, any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without creative work to all other embodiments obtained based on the embodiments of the present invention shall be included within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0020] See also Figure 1-Figure 2The utility model provides an embodiment: a monomer NVP distillation collection and storage device, comprising a base 1, a distillation tower 2 is provided on the base 1, a distillation flask 3 is provided on the top of the distillation tower 2, a feeding port 31 is connected to the distillation flask 3, a condenser 4 is provided on the right side of the distillation flask 3, a coil 43 is provided inside the condenser 4, the upper and lower ends of the coil 43 extend out of the condenser 4, the upper and lower ends of the condenser 4 are connected with a water outlet pipe 41 and a water inlet pipe 42 in sequence, cooling water is introduced through the water inlet pipe 42 to cool the coil 43 inside the condenser 4, and the cooling water is discharged from the water outlet pipe 41; the distillation flask 3 is connected to the condenser 4, and the top of the distillation flask 3 is connected with a steam outlet 32, which is an inverted cone structure, and the top of the steam outlet 32 is connected to the steam outlet pipe 33, and the end of the steam outlet pipe 33 away from the steam outlet 32 is connected to the upper end of the coil 43.

[0021] A liquid collecting box 5 is provided at the bottom of the condenser 4. The liquid collecting box 5 is located on the base 1. There are multiple liquid collecting boxes 5. A liquid collecting pipe 10 is provided above the multiple liquid collecting boxes 5. The liquid collecting pipe 10 is a secondary bending structure. The top of the liquid collecting pipe 10 is rotatably connected to the lower end of the coil 43. A driving component for controlling the rotation of the liquid collecting pipe 10 is provided below the condenser 4. The tops of the multiple liquid collecting boxes 5 are all connected to liquid inlets, and the multiple liquid inlets are all located on the rotation path of the bottom of the liquid collecting pipe 10.

[0022] The liquids can be collected and classified according to their boiling points. The liquid collecting tube 10 can be rotated by the driving component to collect the products with different boiling points separately. A temperature sensor is provided inside the distillation bottle 3, and a display is provided outside the distillation bottle 3. The display is used to monitor the internal temperature in real time. According to the different temperatures of the liquids, the rotation of the liquid collecting tube 10 is controlled, which greatly improves the efficiency and realizes the precise separation of distillation.

[0023] Furthermore, the driving assembly includes a servo motor 6 connected to the bottom of the condenser 4, the output end of the servo motor 6 is connected to a driving gear 7, and a driven gear 8 is sleeved on the liquid collecting tube 10, and the driving gear 7 and the driven gear 8 are meshed with each other.

[0024] The servo motor 6 drives the driving gear 7 to rotate, and the driving gear 7 engages with the driven gear 8, thereby driving the driven gear 8 and the liquid collecting pipe 10 to rotate, and the condensed liquid is respectively loaded into different liquid collecting boxes 5; in this design, four liquid collecting boxes 5 are used and arranged in a square. Each time classified collection is required, the servo motor 6 only needs to control the liquid collecting pipe 10 to rotate 90 degrees as a cycle to complete the collection work.

[0025] Furthermore, the liquid collecting tube 10 is Z-shaped, the top of the liquid collecting tube 10 is inserted into the lower end of the coil 43 , and a tube sleeve 9 is provided at the connection between the liquid collecting tube 10 and the coil 43 .

[0026] The liquid collecting pipe 10 is plug-connected to the coil 43 and is wrapped and protected on the outside by a pipe sleeve 9 to avoid the risk of liquid leakage.

[0027] Working principle of the utility model: When the utility model is in use, the staff adds the monomer NVP to be distilled into the distillation bottle 3 through the feeding port 31, heats it through the distillation tower 2, and can be classified and collected according to different boiling points. The servo motor 6 drives the driving gear 7 to rotate, the driving gear 7 engages with the driven gear 8, and then drives the driven gear 8 and the liquid collecting pipe 10 to rotate, and the condensed liquid is respectively loaded into different liquid collecting boxes 5.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A monomer NVP distillation collection and storage device, comprising a base (1), characterized in that: The base (1) is provided with a distillation tower (2), the top of the distillation tower (2) is provided with a distillation flask (3), the distillation flask (3) is connected to a feed port (31), a condenser (4) is provided on the right side of the distillation flask (3), a coil (43) is provided inside the condenser (4), the upper and lower ends of the coil (43) extend out of the condenser (4), the distillation flask (3) is connected to the condenser (4), a liquid collecting box (5) is provided at the bottom of the condenser (4), and the liquid collecting box (5) is provided. ) is located on the base (1), the number of the liquid collecting boxes (5) is multiple, and a liquid collecting pipe (10) is provided above the multiple liquid collecting boxes (5). The liquid collecting pipe (10) is a secondary bending structure, and the top of the liquid collecting pipe (10) is rotatably connected to the lower end of the coil (43). A driving component for controlling the rotation of the liquid collecting pipe (10) is provided below the condenser (4), and the tops of the multiple liquid collecting boxes (5) are all connected to liquid inlets, and the multiple liquid inlets are all located on the rotation path of the bottom of the liquid collecting pipe (10).

2. A monomer NVP distillation collection and storage device according to claim 1, characterized in that: The upper and lower ends of the condenser tube (4) are connected in sequence to a water outlet pipe (41) and a water inlet pipe (42).

3. A monomer NVP distillation collection and storage device according to claim 2, characterized in that: The top of the distillation flask (3) is connected to a steam outlet (32), which is an inverted cone-shaped structure. The top of the steam outlet (32) is connected to a steam outlet pipe (33), and the end of the steam outlet pipe (33) away from the steam outlet (32) is connected to the upper end of the coil (43).

4. The monomer NVP distillation collection and storage device according to claim 3, characterized in that: The driving assembly comprises a servo motor (6) connected to the bottom of the condenser tube (4); the output end of the servo motor (6) is connected to a driving gear (7); a driven gear (8) is sleeved on the liquid collecting tube (10); and the driving gear (7) and the driven gear (8) are meshed with each other.

5. The monomer NVP distillation collection and storage device according to claim 1, characterized in that: The liquid collecting pipe (10) is Z-shaped, the top of the liquid collecting pipe (10) is inserted into the lower end of the coil (43), and a pipe sleeve (9) is provided at the connection between the liquid collecting pipe (10) and the coil (43).

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