Anti-crystallization storage tank based on glacial acetic acid recovery

Abstract

The utility model discloses an anti-crystallization storage tank based on glacial acetic acid recovery, which comprises an outer box body, a storage tank body is installed in the inner cavity of the outer box body, a liquid inlet pipe is fixedly installed on the storage tank body, a plurality of heating plates are fixedly installed on the outer wall of the storage tank body, a ventilation pipe is rotatably installed on the storage pipe body, and a plurality of heating plates are fixedly installed on the ventilation pipe. A plurality of sets of heat exchange pipes are fixedly installed on the ventilation pipe, and a plurality of blocking pieces are fixedly welded to the inner wall of the ventilation pipe. Through cooperation of the hot-air blower, the heating plate, the ventilation pipe, the heat exchange pipes, the temperature sensor, the controller and other parts, when the temperature of glacial acetic acid is lower than a set minimum threshold value, the driving motor can drive the ventilation pipe to rotate, the multiple heat exchange pipes are driven to stir the glacial acetic acid, and therefore the glacial acetic acid is stirred. And the heat exchange pipe is heated through the air heater to stir and heat the glacial acetic acid, so that the glacial acetic acid in the middle of the storage tank body is conveniently heated, and the glacial acetic acid is heated more uniformly.

Description

Technical Field

[0001] The utility model relates to the technical field of glacial acetic acid recovery, in particular to an anti-crystallization storage tank used for glacial acetic acid recovery. Background Art

[0002] Glacial acetic acid is also called anhydrous acetic acid. Its freezing point is 16.6℃ (62℉). It is a colorless crystal after solidification. Acetic acid is one of the important organic acids. It is mainly used to synthesize vinyl acetate, cellulose acetate, acetic anhydride, acetate esters, metal acetates and halogenated acetic acid. It is also an important raw material for pharmaceuticals, dyes, pesticides and other organic synthesis. In addition, it is also widely used in pharmaceutical manufacturing, cellulose acetate, textile printing and dyeing, and rubber industry.

[0003] Due to the characteristics of the freezing point of glacial acetic acid, its temperature must not be lower than 16.6°C when it is stored. Existing storage tanks for storing glacial acetic acid usually maintain their temperature by heating. However, when heating the existing storage tanks, usually only the outer wall of the storage tank is heated, while the glacial acetic acid in the center of the storage tank heats up more slowly, which often leads to crystallization of the glacial acetic acid in the center of the storage tank due to the slow heating. In this regard, we proposed an anti-crystallization storage tank based on glacial acetic acid recovery. Utility Model Content

[0004] The utility model aims to provide an anti-crystallization storage tank for glacial acetic acid recovery to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an anti-crystallization storage tank for glacial acetic acid recovery, comprising:

[0006] An outer box body, a storage tank body is installed in the inner cavity of the outer box body, a liquid inlet pipe is fixedly installed on the storage tank body, a liquid discharge pipe is fixedly installed on the storage tank body, a plurality of heating plates are fixedly installed on the outer wall of the storage tube body, a ventilation pipe is rotatably installed on the storage tube body, a plurality of groups of heat exchange tubes are fixedly installed on the ventilation tube, the heat exchange tubes are connected with the ventilation tube, a plurality of sealing plates are fixedly welded on the inner wall of the ventilation tube, the sealing plates are arranged between the two ends of the heat exchange tube, the top end of the ventilation tube extends outside the outer box body and a connecting head is rotatably installed, a conduit is fixedly installed on the connecting head, the other end of the conduit is fixedly installed on the outer box body and is connected with the inner cavity of the outer box body, a hot air blower is fixedly installed on the rear side wall of the outer box body, and the exhaust pipe of the hot air blower is connected with the inner cavity of the outer box body.

[0007] Preferably, a driving assembly is provided on the outer box body, and the driving assembly includes a driving motor, a mounting bracket is fixedly mounted on the driving motor, and the mounting bracket is fixedly mounted on the top wall of the outer box body, a driving pulley is fixedly mounted on the output shaft of the driving motor, and a driven pulley is fixedly mounted at the top position of the ventilation duct, and the driven pulley is connected to the driving pulley through a transmission belt.

[0008] Preferably, a temperature sensor is fixedly mounted on the outer box body, the temperature sensor monitoring rod is arranged in the inner cavity of the storage tank body, a controller is fixedly mounted on the outer wall of the outer box body, the controller is electrically connected to the temperature sensor through a wire, and the controller is electrically connected to the heating plate, the hot air blower and the driving motor through a wire.

[0009] Preferably, electric valves are fixedly installed at the bottom ends of the air inlet pipe of the hot air blower and the ventilation pipe, and the electric valves are electrically connected to the controller via a wire.

[0010] Preferably, a heat insulation layer is fixedly installed on the inner wall of the outer box.

[0011] Preferably, a plurality of supporting legs are fixedly mounted on the bottom wall of the outer box body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model cooperates with components such as a hot air blower, a heating plate, a ventilation pipe, a heat exchange pipe, a temperature sensor and a controller, so that when the temperature of the glacial acetic acid is lower than a set minimum threshold value, the driving motor can drive the ventilation pipe to rotate, drive a plurality of heat exchange pipes to stir the glacial acetic acid, and heat the heat exchange pipes by the hot air blower to achieve stirring and heating of the glacial acetic acid, so as to heat and raise the temperature of the glacial acetic acid in the middle of the storage tank body, so that the temperature of the glacial acetic acid is more uniform. When the temperature of the glacial acetic acid reaches the set maximum threshold value, the controller turns off the heating plate, the hot air blower, the driving motor and the electric valve, so that the outer box body is sealed, the storage tank body is kept warm, and a good anti-crystallization effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the anti-crystallization storage tank for glacial acetic acid recovery proposed by the utility model;

[0015] Figure 2 This is a front view of the cross-section structure of the outer box in the anti-crystallization storage tank for glacial acetic acid recovery proposed by the utility model;

[0016] Figure 3 The utility model is based on the anti-crystallization storage tank for glacial acetic acid recovery Figure 1 Enlarged structural diagram at point A in the middle.

[0017] In the figure: 1. outer box; 2. storage tank body; 3. liquid inlet pipe; 4. liquid discharge pipe; 5. heating plate; 6. ventilation pipe; 7. heat exchange pipe; 8. sealing plate; 9. conduit; 10. connector; 11. hot air blower; 12. drive motor; 13. mounting frame; 14. driving pulley; 15. driven pulley; 16. transmission belt; 17. temperature sensor; 18. controller; 19. electric valve; 20. thermal insulation layer; 21. support leg. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-3 The utility model provides a technical solution: an anti-crystallization storage tank for glacial acetic acid recovery, comprising:

[0020] An outer box body 1, in which a storage tank body 2 is installed in the inner cavity of the outer box body 1, a liquid inlet pipe 3 is fixedly installed on the storage tank body 2, a liquid discharge pipe 4 is fixedly installed on the storage tank body 2, a plurality of heating plates 5 are fixedly installed on the outer wall of the storage tube body 2, a ventilation pipe 6 is rotatably installed on the storage tube body 2, a plurality of groups of heat exchange tubes 7 are fixedly installed on the ventilation tube 6, the heat exchange tube 7 is communicated with the ventilation tube 6, a plurality of sealing sheets 8 are fixedly welded on the inner wall of the ventilation tube 6, the sealing sheets 8 are arranged between the two ends of the heat exchange tube 7, the top end of the ventilation tube 6 extends to the outside of the outer box body 1 and is rotatably installed with a connector 10, a conduit 9 is fixedly installed on the connector 10, the other end of the conduit 9 is fixedly installed on the outer box body 1 and is communicated with the inner cavity of the outer box body 1, a hot air blower 11 is fixedly installed on the rear side wall of the outer box body 1, and the exhaust pipe of the hot air blower 11 is communicated with the inner cavity of the outer box body 1.

[0021] The outer box body 1 is provided with a driving assembly, and the driving assembly includes a driving motor 12, on which a mounting frame 13 is fixedly mounted, and the mounting frame 13 is fixedly mounted on the top wall of the outer box body 1, and a driving pulley 14 is fixedly mounted on the output shaft of the driving motor 12, and a driven pulley 15 is fixedly mounted at the top position of the ventilation duct 6, and the driven pulley 15 is connected to the driving pulley 14 through a transmission belt 16. After the driving motor 12 is started, the driving pulley 14 can be driven to rotate, and the driving pulley 14 drives the driven pulley 15 to rotate through the transmission belt 16, thereby driving the ventilation duct 6 to rotate.

[0022] A temperature sensor 17 is fixedly installed on the outer box body 1, and a monitoring rod of the temperature sensor 17 is arranged in the inner cavity of the storage tank body 2. A controller 18 is fixedly installed on the outer wall of the outer box body 1. The controller 18 is electrically connected to the temperature sensor 17 through a wire, and the controller 18 is electrically connected to the heating plate 5, the hot air blower 11 and the driving motor 12 through a wire. The temperature sensor 17 is used to monitor the temperature of glacial acetic acid in the storage tank body 1, and the controller 18 is used to control the heating plate 5, the hot air blower 11 and the driving motor 12.

[0023] The air inlet pipe of the hot air blower 11 and the bottom end of the ventilation pipe 6 are both fixedly installed with an electric valve 19, and the electric valve 19 is electrically connected to the controller 18 through a wire. The electric valve 19 can electrically control the opening and closing of the air inlet pipe of the hot air blower 11 and the bottom end of the ventilation pipe 6.

[0024] A heat insulation layer 20 is fixedly installed on the inner wall of the outer box body 1, and the heat insulation layer 20 can make the outer box body 1 have a better heat preservation effect.

[0025] A plurality of support legs 21 are fixedly mounted on the bottom wall of the outer box body 1 , and the support legs 21 are used to stably support the outer box body 1 .

[0026] Working principle: When the utility model is in use, the temperature sensor 17 is used to monitor the temperature of the glacial acetic acid in the storage tank body 1. When the temperature of the glacial acetic acid is lower than the set minimum threshold, the controller 18 turns on the heating plate 5, the hot air blower 11, the drive motor 12 and the electric valve 19. The heating plate 5 can heat the storage tank body 2, and the hot air blower 11 can blow hot air into the inner cavity of the outer box body 1. The hot air is transported to the ventilation pipe 6 through the conduit 9. The ventilation pipe 6 is provided with a plurality of sealing sheets 8 so that the hot air passes through a plurality of heat exchange pipes 7 in sequence. , the glacial acetic acid in the middle of the storage tank body 2 is heated and heated, and at the same time, the driving motor 12 drives the ventilation pipe 6 to rotate, and drives multiple heat exchange tubes 7 to stir the glacial acetic acid, so as to achieve stirring and heating of the glacial acetic acid, which is convenient for heating the glacial acetic acid in the middle of the storage tank body 2, so that the glacial acetic acid is heated more evenly. When the temperature of the glacial acetic acid reaches the set maximum threshold, the controller 18 turns off the heating plate 5, the hot air blower 11, the driving motor 12 and the electric valve 19, so that the outer box body 1 is sealed and the storage tank body 2 is kept warm.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. 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.

[0028] 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 anti-crystallization storage tank for glacial acetic acid recovery, characterized in that: include: An outer box body (1), a storage tank body (2) is installed in the inner cavity of the outer box body (1), a liquid inlet pipe (3) is fixedly installed on the storage tank body (2), a liquid discharge pipe (4) is fixedly installed on the storage tank body (2), a plurality of heating plates (5) are fixedly installed on the outer wall of the storage tank body (2), a ventilation pipe (6) is rotatably installed on the storage tank body (2), a plurality of groups of heat exchange pipes (7) are fixedly installed on the ventilation pipe (6), the heat exchange pipes (7) are connected to the ventilation pipe (6), and the inner wall of the ventilation pipe (6) A plurality of sealing plates (8) are fixedly welded on the outer box (1), and the sealing plates (8) are arranged between the two ends of the heat exchange tube (7). The top end of the ventilation pipe (6) extends to the outside of the outer box (1) and is rotatably mounted with a connector (10). A conduit (9) is fixedly mounted on the connector (10). The other end of the conduit (9) is fixedly mounted on the outer box (1) and is in communication with the inner cavity of the outer box (1). A hot air blower (11) is fixedly mounted on the rear side wall of the outer box (1), and an exhaust pipe of the hot air blower (11) is in communication with the inner cavity of the outer box (1).

2. The anti-crystallization storage tank for glacial acetic acid recovery according to claim 1, characterized in that: The outer box body (1) is provided with a driving assembly, the driving assembly comprising a driving motor (12), a mounting frame (13) is fixedly mounted on the driving motor (12), the mounting frame (13) is fixedly mounted on the top wall of the outer box body (1), a driving pulley (14) is fixedly mounted on the output shaft of the driving motor (12), a driven pulley (15) is fixedly mounted at the top position of the ventilation pipe (6), and the driven pulley (15) is connected to the driving pulley (14) through a transmission belt (16).

3. The anti-crystallization storage tank for glacial acetic acid recovery according to claim 2, characterized in that: A temperature sensor (17) is fixedly mounted on the outer box (1); a monitoring rod of the temperature sensor (17) is arranged in the inner cavity of the storage tank body (2); a controller (18) is fixedly mounted on the outer wall of the outer box (1); the controller (18) is electrically connected to the temperature sensor (17) via a wire; and the controller (18) is electrically connected to the heating plate (5), the hot air blower (11) and the driving motor (12) via a wire.

4. The anti-crystallization storage tank for glacial acetic acid recovery according to claim 3, characterized in that: An electric valve (19) is fixedly installed at the bottom ends of the air inlet pipe of the hot air blower (11) and the ventilation pipe (6), and the electric valve (19) is electrically connected to the controller (18) via a wire.

5. The anti-crystallization storage tank for glacial acetic acid recovery according to claim 1, characterized in that: A heat insulation layer (20) is fixedly mounted on the inner wall of the outer box body (1).

6. The anti-crystallization storage tank for glacial acetic acid recovery according to claim 1, characterized in that: A plurality of supporting legs (21) are fixedly mounted on the bottom wall of the outer box body (1).

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