Azeotrope separation device

Abstract

The utility model discloses an azeotrope separating device, which belongs to the technical field of separating devices and comprises an evaporation box used for heating azeotrope and a separating box used for separating the azeotrope, the top end of the evaporation box is communicated with a gas guide pipe, one end of the gas guide pipe far away from the evaporation box extends into the separating box, and the peripheral side of the gas guide pipe is communicated with a fixed box. The inner side wall of the separation box is fixedly connected with a fixed box, the bottom end of the fixed box is fixedly connected with a sealing bearing through a formed through groove, an inner ring of the sealing bearing is fixedly connected with a rotating pipe, the bottom end of the rotating pipe communicates with a flow guide box, and the bottom end of the flow guide box communicates with a plurality of nozzles; according to the azeotrope separation device disclosed by the utility model, the spray head which is convenient to rotate and move is arranged, so that the full mixing of azeotrope and extract liquor is realized, and the separation effect of the separation device on the azeotrope is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of separation devices, in particular to an azeotropic separation device. Background Art

[0002] Azeotrope refers to the phenomenon that when a liquid mixture of two or more components is composed of a specific ratio, it boils under constant pressure and its vapor composition ratio is the same as that of the solution. Azeotropes cannot be separated by conventional distillation or fractionation. When a separation device is required, the azeotrope evaporates and mixes with the extractant to achieve the separation of the azeotrope, such as the separation of methanol and dimethyl carbonate. The existing separation device is not convenient for fully mixing the azeotrope vapor and the extractant, which affects the extraction effect and further reduces the separation effect of the separation device on the azeotrope.

[0003] Example (authorization announcement number is CN219023287U) An azeotrope separation device includes a heating box and a packing tower, the heating box is connected to the packing tower through a connecting pipe; the inner wall of the heating box is symmetrically provided with heating plates, and an opening mechanism is provided inside the heating box; the packing tower is provided with an extractant feed port and a material feed port, respectively, the material feed port is connected to the connecting pipe, and multiple packing layers are arranged at intervals inside the packing tower. By providing a heating box, the utility model can transport the fully heated mixed gas through a pipeline, avoiding the loss of gas heat during transportation, reducing the probability of the mixed gas adhering to the pipeline after liquefaction, and is conducive to improving production efficiency. However, the device does not take into account that the azeotrope vapor is inconvenient to fully mix with the extractant, reducing the separation effect of the separation device on the azeotrope. Utility Model Content

[0004] The utility model aims to provide an azeotrope separation device to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an azeotrope separation device, comprising an evaporator box for heating the azeotrope and a separation box for separating the azeotrope, an air guide pipe is connected to the top of the evaporator box, an end of the air guide pipe away from the evaporator box extends into the interior of the separation box, an outer peripheral side of the air guide pipe is connected to a fixed box, an inner wall of the separation box is fixedly connected to the fixed box, a sealed bearing is fixedly connected to the bottom of the fixed box through a through groove, an inner ring of the sealed bearing is fixedly connected to a rotating tube, a bottom end of the rotating tube is connected to a guide box, a bottom end of the guide box is connected to a plurality of nozzles, a rotating motor is installed on the side of the separation box, an output shaft of the rotating motor is fixedly connected to a rotating rod, and an end face of the rotating rod is rotatably connected to the rotating tube through the meshing of a bevel gear.

[0006] Preferably, an air outlet is installed on the side of the separation box, and connecting pipes are connected to both ends of the side of the evaporation box.

[0007] Preferably, the outer circumferential sides of the two connecting pipes are connected with fixed pipes, and the top and bottom ends of the fixed pipes are fixedly connected to limit bearings.

[0008] Preferably, the inner ring of the limit bearing is fixedly connected with a connecting block, and the adjacent sides of the two connecting blocks are fixedly connected with threaded rods.

[0009] Preferably, the top of the upper connecting block is fixedly connected with a rotating block, and the threaded rod is threadedly connected with the threaded block.

[0010] Preferably, a cleaning plate is fixedly connected to the side of the threaded block, and a sight glass is fixedly connected to the side of the fixed pipe via a through groove.

[0011] Preferably, the side of the sight glass is slidably connected to the cleaning plate, both sides of the cleaning plate are slidably connected to the fixed pipe, and a feeding port is installed on the side of the evaporator box.

[0012] Preferably, a feeding port for feeding the extracting liquid is installed at the top of the separation box, and sealing covers are installed on the feeding port and the outer peripheral side of the feeding port.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] The azeotrope separation device separates methanol from dimethyl carbonate. The methanol and dimethyl carbonate need to be evaporated and separated through an extract to prevent uneven mixing of azeotropes such as a mixed solution of methanol and dimethyl carbonate with the extract, which affects the separation effect of the azeotropes. The rotating motor is provided to provide power so that the rotating rod rotates following the output shaft of the rotating motor. Under the meshing action of the bevel gear, the rotating tube rotates, and then the guide box rotates to drive the nozzle to rotate and move, and the azeotrope is sprayed at the nozzle, so that the azeotrope is fully contacted with the extract in the separation box, and the separation effect of the azeotrope separation device on the azeotropes is improved.

[0015] The azeotrope separation device prevents the evaporation box from heating and evaporating azeotropes such as a methanol and dimethyl carbonate mixture therein, making it inconvenient to observe the solution inside the evaporation box in real time, which can easily lead to dry burning of the evaporation box and damage to the evaporation box. The two connecting pipes are arranged to realize the communication between the fixed pipe and the solution inside the evaporation box. With the help of the visual glass arranged on the side of the fixed pipe, it is convenient to observe the solution stock inside the evaporation box, and prevent the surface of the visual glass from being adhered to foreign matters, which affects the visibility of the visual glass. By rotating the rotating block, the threaded block moves along the threaded path of the threaded rod, thereby realizing the cleaning function of the cleaning plate on the adhered matters on the surface of the visual glass, and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 For the utility model Figure 1 Sectional view in the AA direction;

[0019] Figure 3 For the utility model Figure 1 A magnified view of the structure at B in the middle;

[0020] Figure 4 It is a structural schematic diagram of the rotating block of the utility model.

[0021] Description of reference numerals:

[0022] In the figure: 1. Evaporation box; 2. Air guide pipe; 3. Separation box; 4. Feeding port; 5. Air outlet; 6. Fixed box; 7. Sealed bearing; 8. Rotating pipe; 9. Guide box; 10. Nozzle; 11. Rotating rod; 12. Rotating motor; 13. Connecting pipe; 14. Fixed pipe; 15. Limit bearing; 16. Connecting block; 17. Rotating block; 18. Threaded rod; 19. Threaded block; 20. Cleaning plate; 21. Sight glass; 22. Sealing cover; 23. Feeding port. DETAILED DESCRIPTION

[0023] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0024] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0025] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0026] In order to solve the problem that the azeotrope vapor and the extractant are not fully mixed when the azeotrope separation device is used, which reduces the separation effect of the separation device on the azeotrope, please refer to Figures 1 to 4 The structure of the device body is an evaporation box 1 for heating azeotropes and a separation box 3 for separating azeotropes. A azeotrope such as a mixed solution of methanol and dimethyl carbonate is ventilated inside the evaporation box 1. The separation box 3 is provided to store an extract for extracting and separating the specified azeotropes, so that the azeotropes evaporate under the heating inside the evaporation box 1. The azeotropes are separated by the extract inside the separation box 3. The top of the evaporation box 1 is connected with an air guide pipe 2. The end of the air guide pipe 2 away from the evaporation box 1 extends into the separation box 3, and the side of the air guide pipe 2 is sealed and fixedly connected with the connection between the separation box 3 and the side of the air guide pipe 2. The outer peripheral side of the air guide pipe 2 is connected with a fixed box 6. The air guide pipe 2 is provided to realize the communication between the evaporation box 1 and the fixed box 6, so that the azeotropes evaporated inside the evaporation box 1 flow into the fixed box 6. The inner wall of the separation box 3 is fixedly connected to the fixed box 6 to fix the position of the fixed box 6. The bottom of the fixed box 6 is fixedly connected with a sealing bearing 7 through a through groove, and the inner ring of the sealing bearing 7 is fixedly connected with a rotating tube 8.

[0027] The sealing bearing 7 provided provides a sealing effect while realizing the relative rotation of the fixed box 6 and the rotating tube 8, realizing the sealing communication effect of the fixed box 6 and the rotating tube 8. The bottom end of the rotating tube 8 is connected to a guide box 9, and the bottom end of the guide box 9 is connected to a plurality of nozzles 10. The guide box 9 provided is convenient for the distributed installation of a plurality of nozzles 10, so as to realize the full contact between the azeotropic substance introduced under the evaporation tower and the extract in the separation box 3, so as to realize the separation effect of the azeotropic substance. A rotating motor 12 is installed on the side of the separation box 3 to fix the position of the rotating motor 12. The output shaft of the rotating motor 12 is fixedly connected to a rotating rod 11. The end face of the rotating rod 11 is rotatably connected to the rotating tube 8 through the meshing of the bevel gear, so that the output shaft of the rotating motor 12 rotates to drive the rotating rod 11 to rotate. Under the meshing action of the bevel gear, the rotation of the rotating tube 8 is realized, and then the rotation and movement of the plurality of nozzles 10 are driven, so that the azeotropic substance vapor sprayed by the nozzle 10 is fully in contact with the extract, thereby improving the separation effect of the separation device on the azeotropic substance.

[0028] An air outlet 5 is installed on the side of the separation box 3, and both ends of the side of the evaporation box 1 are connected with connecting pipes 13. The outer peripheral sides of the two connecting pipes 13 are connected with fixed pipes 14. Both ends of the side of the fixed pipe 14 are connected with the connecting pipes 13. The two connecting pipes 13 are set to realize the connection between the fixed pipe 14 and the evaporation box 1, and realize the azeotropic flow inside the evaporation box 1 into the fixed pipe 14. The top and bottom ends of the fixed pipe 14 are fixedly connected to the limited bearing 15, and the inner ring of the limited bearing 15 is fixedly connected to the connecting block 16. The set limited bearing 15 provides a sealing effect. At the same time, the relative rotation of the connecting block 16 and the fixed tube 14 is realized. The adjacent sides of the two connecting blocks 16 are fixedly connected with threaded rods 18. The top of the upper connecting block 16 is fixedly connected with a rotating block 17. The rotating block 17 is arranged to facilitate the rotation of the threaded rod 18 from the outside of the fixed tube 14, thereby improving the functional structural stability of the device. The threaded rod 18 is threadedly connected with a threaded block 19, so that the threaded block 19 moves along the threaded path of the threaded rod 18. The side of the threaded block 19 is fixedly connected with a cleaning plate 20, thereby realizing the synchronous movement of the cleaning plate 20 and the threaded block 19.

[0029] A visual glass 21 is fixedly connected to the side of the fixed tube 14 through an opened through groove. The set visual glass 21 is convenient for real-time observation of the azeotropic reserve inside the evaporation box 1 to prevent the evaporation box 1 from being dry-burned, causing damage to the evaporation box 1 and shortening the service life of the separation device. The side of the visual glass 21 is slidably connected to the cleaning plate 20, so that the visual glass 21 can be scraped and cleaned by moving the cleaning plate 20 to prevent debris from adhering to the surface of the visual glass 21 and reduce the visibility of the visual glass 21. Both sides of the cleaning plate 20 are slidably connected to the fixed tube 14, and the inner wall of the fixed tube 14 is slidably connected to the cleaning plate 20 through the opened groove, so that In order to fix the moving path of the cleaning plate 20, and then fix the moving path of the threaded block 19, the threaded block 19 is prevented from rotating synchronously with the rotation of the threaded rod 18, and the functional structural stability of the device is improved. A feeding port 4 is installed on the side of the evaporation box 1, and a feeding port 23 for feeding the extraction liquid is installed on the top of the separation box 3. The feeding port 4 and the feeding port 23 are both installed on the outer peripheral side with a sealing cover 22. The feeding port 4 is provided for the convenience of feeding the azeotropic material into the evaporation box 1, and the feeding port 23 is provided for the convenience of feeding the extraction liquid into the separation box 3. The two sealing covers 22 provide sealing and blocking effects on the feeding port 4 and the feeding port 23 respectively, and the sealing cover 22 is easy to disassemble.

[0030] The rotating motor 12 is a prior art, and its working principle, size and model are irrelevant to the function of the present application, so no further description is given. The control method of the present invention is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and the present invention is mainly used to protect mechanical devices, so the present invention no longer explains the control method and circuit connection in detail.

[0031] How it works

[0032] When using the azeotrope separation device, the user feeds azeotropes such as a mixed solution of methanol and dimethyl carbonate into the evaporation box 1 through the feed port 4, and feeds an extractant for extracting and separating a specified azeotrope into the separation box 3 through the feed port 23. The azeotrope vapor in the evaporation box 1 is introduced into the fixed box 6 through the air guide pipe 2 by the heating effect of the evaporation box 1. The fixed box 6 is fixed inside the separation box 3. Then, the azeotrope vapor is introduced into the guide box 9 through the rotating tube 8, and is sprayed out through a plurality of nozzles 10 to mix with the extractant in the separation box 3. In order to improve the full mixing of the azeotrope and the extractant, the rotating motor 12 is started to rotate the output shaft of the rotating motor 12 to drive the rotating rod 11 to rotate. Under the meshing action of the bevel gear, the rotating tube 8 is rotated, and the nozzle 10 is rotated and moved during the transmission process, so as to further improve the mixing effect of the azeotrope and the extractant, and strengthen the separation effect of the separation device on the azeotrope. The provided sealing bearing 7 provides a sealing effect while realizing the relative rotation of the rotating tube 8 and the fixed box 6, thereby improving the functional and structural stability of the device.

[0033] The azeotropic substance inside the evaporation box 1 is prevented from being inconvenient to be controlled in real time, resulting in insufficient storage of azeotropic substance inside the evaporation box 1, causing dry burning of the evaporation box 1, causing damage to the evaporation box 1, and shortening the service life of the separation device. The two connecting pipes 13 are provided to realize the communication between the fixed pipe 14 and the evaporation box 1. The visual glass 21 is provided to facilitate observation of the azeotropic substance storage inside the evaporation box 1 from the outside, prolonging the service life of the device, and preventing the visibility of the visual glass 21 from being reduced due to adhered debris. By rotating the rotating block 17, the threaded block 19 is moved along the threaded path of the threaded rod 18 during the transmission process, driving the cleaning plate 20 to move and clean the visual glass 21, thereby improving the visibility of the visual glass 21. The cleaning plate 20 moves in the groove provided on the inner side wall of the fixed pipe 14, preventing the threaded block 19 from rotating synchronously with the rotation of the threaded rod 18, thereby improving the functional structural stability of the device. The two limit bearings 15 and the two connecting blocks 16 provide a sealing effect, while facilitating the external control of the movement of the cleaning plate 20, thereby improving the convenience of use of the device.

[0034] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An azeotrope separation device, comprising an evaporation box (1) for heating the azeotrope and a separation box (3) for separating the azeotrope, characterized in that: The top end of the evaporation box (1) is connected to an air guide pipe (2), one end of the air guide pipe (2) away from the evaporation box (1) extends into the interior of the separation box (3), the outer peripheral side of the air guide pipe (2) is connected to a fixed box (6), and the inner side wall of the separation box (3) is fixedly connected to the fixed box (6); The bottom end of the fixed box (6) is fixedly connected to a sealed bearing (7) via a through groove, the inner ring of the sealed bearing (7) is fixedly connected to a rotating tube (8), the bottom end of the rotating tube (8) is connected to a guide box (9), the bottom end of the guide box (9) is connected to a plurality of nozzles (10), a rotating motor (12) is mounted on the side of the separation box (3), the output shaft of the rotating motor (12) is fixedly connected to a rotating rod (11), and the end surface of the rotating rod (11) is rotatably connected to the rotating tube (8) via meshing of a bevel gear.

2. The azeotrope separation device according to claim 1, characterized in that: An air outlet (5) is installed on the side of the separation box (3), and both ends of the side of the evaporation box (1) are connected to connecting pipes (13).

3. An azeotrope separation device according to claim 2, characterized in that: The outer circumferences of the two connecting pipes (13) are connected to a fixed pipe (14), and the top and bottom ends of the fixed pipe (14) are fixedly connected to a limit bearing (15).

4. The azeotrope separation device according to claim 3, characterized in that: The inner ring of the limit bearing (15) is fixedly connected to a connecting block (16), and the adjacent sides of the two connecting blocks (16) are fixedly connected to threaded rods (18).

5. The azeotrope separation device according to claim 4, characterized in that: The top end of the upper connection block (16) is fixedly connected to a rotating block (17), and the threaded rod (18) is threadedly connected to a threaded block (19).

6. The azeotrope separation device according to claim 5, characterized in that: A cleaning plate (20) is fixedly connected to the side of the threaded block (19), and a visual glass (21) is fixedly connected to the side of the fixed tube (14) via a through groove.

7. The azeotrope separation device according to claim 6, characterized in that: The side of the visual glass (21) is slidably connected to the cleaning plate (20), and both side surfaces of the cleaning plate (20) are slidably connected to the fixed pipe (14). A feeding port (4) is installed on the side of the evaporation box (1).

8. An azeotrope separation device according to claim 7, characterized in that: The top of the separation box (3) is provided with a feeding port (23) for feeding the extraction liquid, and the outer peripheral sides of the feeding port (4) and the feeding port (23) are both provided with sealing covers (22).

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