Acetic anhydride distillation directed collection device

Abstract

This utility model discloses an acetic anhydride distillation guiding and collecting device, relating to the field of acetic anhydride distillation technology. The utility model includes a support frame, with a guiding tank inserted inside the support frame. An inlet pipe is fixedly connected to the top of the guiding tank, and a drain pipe is fixedly connected to the bottom of the guiding tank. A collection bottle is disposed at the bottom of the drain pipe. It also includes a guiding mechanism disposed inside the guiding tank, comprising an inner tank fixedly connected to the inner wall of the guiding tank. This utility model, by setting guiding deceleration plates, specifically, guides and slows down acetic anhydride vapor after it enters the inner tank. Simultaneously, serpentine ribs further slow down the flow of acetic anhydride vapor. The multiple guiding deceleration plates cause the acetic anhydride vapor to flow in a serpentine manner, thereby ensuring more complete liquefaction of the acetic anhydride vapor, significantly reducing the escape loss of acetic anhydride vapor, and improving the yield.

Description

Technical Field

[0001] This invention belongs to the field of acetic anhydride distillation technology, and in particular relates to an acetic anhydride distillation guiding and collecting device. Background Technology

[0002] An acetic anhydride distillation guided collection device is an experimental apparatus specifically designed for the separation, purification, and collection of acetic anhydride through distillation processes. Traditional acetic anhydride distillation typically requires condensation to convert the distilled acetic anhydride vapor into a liquid state during collection. However, the acetic anhydride vapor usually flows directly within the pipe at a relatively high speed, which can easily lead to incomplete liquefaction of the vapor, increasing escape losses and thus reducing yield and energy consumption. Utility Model Content

[0003] The purpose of this invention is to provide an acetic anhydride distillation guiding and collecting device. By setting guide deceleration plates, specifically, after acetic anhydride vapor enters the inner tank, it is guided and decelerated by the guide deceleration plates. At the same time, the serpentine convex strips further decelerate the flow of acetic anhydride vapor. The multiple guide deceleration plates make the acetic anhydride vapor flow in a serpentine manner, thereby making the acetic anhydride vapor more fully liquefied, greatly reducing the escape loss of acetic anhydride vapor, and improving the yield. This solves the problem that acetic anhydride vapor usually flows directly in the pipeline and the steam flow is relatively fast, which easily leads to insufficient liquefaction of acetic anhydride vapor and increases the escape loss of acetic anhydride vapor.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to an acetic anhydride distillation guiding and collecting device, comprising a support frame, a guiding tank inserted inside the support frame, an air inlet pipe fixedly connected to the top of the guiding tank, a drain pipe fixedly connected to the bottom of the guiding tank, a collecting bottle disposed at the bottom of the drain pipe, and further comprising:

[0006] A guiding mechanism is disposed inside the guiding tank. The guiding mechanism includes an inner tank fixedly connected to the inner wall of the guiding tank. A plurality of guiding deceleration plates are fixedly connected to the inner wall of the inner tank. A serpentine convex strip is fixedly connected to the top of the guiding deceleration plate. A diversion pipe is sleeved on the outer side of the inner tank. The serpentine convex strip is integrally formed with the guiding deceleration plate. The plurality of guiding deceleration plates are arranged vertically in an alternating manner.

[0007] The guide deceleration plate is inclined, and a gap is left between the lower end of the guide deceleration plate and the inner wall of the inner tank.

[0008] Furthermore, an inlet pipe is fixedly connected to the bottom left side of the diversion pipe, and an outlet pipe is fixedly connected to the top right side of the diversion pipe. Both the inlet pipe and the outlet pipe pass through the guide tank and extend to the outside. The inlet pipe is connected to the water supply pipe, and the outlet pipe is connected to the drain pipe. Cooling water is transported into the diversion pipe and diverted through the diversion pipe to enclose the inner tank. After heat exchange, the water will be discharged from the outlet pipe.

[0009] Furthermore, a rubber outlet sleeve is fixedly connected to the bottom of the drain pipe, and a convex plate is fixedly connected to the outside of the drain pipe. A sealing ring is fitted at the bottom of the convex plate, and a sealing plug is fitted at the top of the collection bottle. The sealing ring and the sealing plug work together to increase the sealing effect, and the convex plate is used to position and install the sealing ring.

[0010] The sealing plug has an opening at its center, and the bottom of the drain pipe and the rubber outlet sleeve are both inserted into the opening on the sealing plug.

[0011] Furthermore, a convex ring is provided at the bottom of the convex disc, which is used to position and install the sealing ring, and the bottom of the sealing ring contacts the top of the sealing plug.

[0012] Furthermore, a convex ring is fixedly connected to the outer side of the guide can, and a positioning block is fixedly connected to the bottom left side of the convex ring. The positioning block is positioned and inserted into the bracket, and the bottom of the convex ring contacts the top of the bracket. The convex ring and the bracket cooperate to support the guide can. The positioning block is used to position and install the guide can to prevent the guide can from shaking during use.

[0013] Furthermore, the bottom of the air inlet pipe is connected to the inner tank, and the bottom of the inner tank is connected to the top of the drain pipe; by connecting the top of the air inlet pipe to a pipeline, acetic anhydride vapor is transported into the inner tank, and the resulting liquid is discharged through the drain pipe.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model, by setting up guide deceleration plates, specifically, after acetic anhydride vapor enters the inner tank, it will be guided and decelerated by the guide deceleration plates. At the same time, the serpentine convex strips will further decelerate the flow of acetic anhydride vapor. The multiple guide deceleration plates make the acetic anhydride vapor flow in a serpentine manner, thereby making the acetic anhydride vapor more fully liquefied, greatly reducing the escape and loss of acetic anhydride vapor, and improving the yield.

[0016] 2. This utility model uses a convex disc to connect the collection bottle to the bottom of the drain pipe. The bottom of the drain pipe is inserted between the sealing plugs, and the bottom of the convex disc contacts the top of the sealing plug through the sealing ring, thereby sealing the top of the collection bottle. By sealing the opening at the top of the collection bottle, the escape of acetic anhydride vapor during collection can be greatly reduced.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the guide tank of this utility model;

[0021] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0022] Figure 4 This is a schematic diagram of the overall structure of the inner tank of this utility model;

[0023] Figure 5 This is a schematic diagram of the overall structure of the guide deceleration plate of this utility model;

[0024] Figure 6 This is a schematic diagram of the bottom structure of the convex ring of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Support; 11. Guide tank; 12. Air inlet pipe; 13. Drain pipe; 131. Rubber outlet sleeve; 132. Convex plate; 133. Sealing ring; 14. Collection bottle; 141. Sealing plug; 15. Convex ring; 151. Positioning block; 2. Guide mechanism; 21. Inner tank; 22. Guide deceleration plate; 221. Serpentine convex strip; 23. Diverter pipe; 231. Water inlet pipe; 232. Water outlet pipe. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figures 1-6As shown, this utility model is an acetic anhydride distillation guiding and collecting device, including a support 1, a guiding tank 11 inserted inside the support 1, an air inlet pipe 12 fixedly connected to the top of the guiding tank 11, a drain pipe 13 fixedly connected to the bottom of the guiding tank 11, a collecting bottle 14 provided at the bottom of the drain pipe 13, and also including:

[0029] The guiding mechanism 2 is located inside the guiding tank 11. The guiding mechanism 2 includes an inner tank 21 fixedly connected to the inner wall of the guiding tank 11. Several guiding deceleration plates 22 are fixedly connected to the inner wall of the inner tank 21. A serpentine protrusion 221 is fixedly connected to the top of the guiding deceleration plate 22. A diversion pipe 23 is sleeved on the outer side of the inner tank 21. After acetic anhydride vapor enters the inner tank 21, it will be guided and decelerated by the guiding deceleration plates 22. At the same time, the serpentine protrusion 221 will further decelerate the flow of acetic anhydride vapor. The multiple guiding deceleration plates 22 make the acetic anhydride vapor flow in a serpentine manner, thereby making the acetic anhydride vapor more fully liquefied, greatly reducing the escape loss of acetic anhydride vapor, and improving the yield. The guiding deceleration plates 22 are inclined, and a gap is left between the lower end of the guiding deceleration plate 22 and the inner wall of the inner tank 21.

[0030] A water inlet pipe 231 is fixedly connected to the bottom left side of the diversion pipe 23, and a water outlet pipe 232 is fixedly connected to the top right side of the diversion pipe 23. Both the water inlet pipe 231 and the water outlet pipe 232 pass through the guide tank 11 and extend to the outside.

[0031] A rubber outlet sleeve 131 is fixedly connected to the bottom of the drain pipe 13, and a convex plate 132 is fixedly connected to the outside of the drain pipe 13. A sealing ring 133 is fitted at the bottom of the convex plate 132, and a sealing plug 141 is fitted at the top of the collection bottle 14. When the collection bottle 14 is inserted into the bottom of the drain pipe 13, the bottom of the drain pipe 13 will be inserted between the sealing plugs 141, and at the same time, the bottom of the convex plate 132 will contact the top of the sealing plug 141 through the sealing ring 133, thereby sealing the top of the collection bottle 14. By sealing the opening at the top of the collection bottle 14, the escape of acetic anhydride vapor can be greatly reduced during collection. An opening is provided at the center of the sealing plug 141, and the bottom of the drain pipe 13 and the rubber outlet sleeve 131 are both inserted into the opening on the sealing plug 141.

[0032] The bottom of the convex disc 132 is provided with a convex ring, which is used to position and install the sealing ring 133. The bottom of the sealing ring 133 contacts the top of the sealing plug 141.

[0033] A protruding ring 15 is fixedly connected to the outside of the guide tank 11. A positioning block 151 is fixedly connected to the bottom left of the protruding ring 15. The positioning block 151 is positioned and inserted into the bracket 1. The bottom of the protruding ring 15 contacts the top of the bracket 1. The protruding ring 15 and the bracket 1 cooperate to support the guide tank 11.

[0034] The bottom of the air inlet pipe 12 is connected to the inner tank 21, and the bottom of the inner tank 21 is connected to the top of the drain pipe 13.

[0035] One specific application of this embodiment is:

[0036] In use, insert the drain pipe 13 at the bottom of the guide tank 11 into the bracket 1, then connect the guide tank 11 to the bracket 1 and connect the positioning block 151 on the guide tank 11 to the bracket 1, thereby positioning the guide tank 11 on the bracket 1. When the bottom of the convex ring 15 contacts the top of the bracket 1, the installation of the guide tank 11 is complete. Then, connect the bottom of the collection bottle 14 to the drain pipe 13. The bottom of the drain pipe 13 will be inserted between the sealing plugs 141, and the rubber outlet sleeve 131 will extend into the collection bottle 14. At the same time, the bottom of the convex plate 132 will contact the top of the sealing plug 141 through the sealing ring 133, thereby sealing the top of the collection bottle 14. By sealing the opening at the top of the collection bottle 14, the escape of acetic anhydride vapor during collection can be greatly reduced. Then, connect the inlet pipe 231 to the water supply pipe and the outlet pipe 232 to the drain pipe, and supply cooling water. The water flows into the diversion pipe 23 and is diverted to the inner tank 21. After heat exchange, the water flows out from the outlet pipe 232. At the same time, the top of the air inlet pipe 12 is connected to a pipe to transport acetic anhydride vapor into the inner tank 21. The acetic anhydride vapor is condensed by the diversion pipe 23 and becomes liquid, which flows into the collection bottle 14 for collection. The acetic anhydride vapor is guided and slowed down by the guide deceleration plate 22. At the same time, the serpentine convex strip 221 slows down the flow of acetic anhydride vapor again. The multiple guide deceleration plates 22 make the acetic anhydride vapor flow in a serpentine manner, so that the acetic anhydride vapor is more fully liquefied, greatly reducing the escape loss of acetic anhydride vapor and improving the yield. The vapor flowing into the drain pipe 13 and the collection bottle 14 will flow back into the inner tank 21 when it no longer has flow power, so as to undergo liquefaction again and further improve the liquefaction effect.

[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An acetic anhydride distillation guiding and collecting device, comprising a support (1), a guiding tank (11) inserted inside the support (1), an air inlet pipe (12) fixedly connected to the top of the guiding tank (11), a drain pipe (13) fixedly connected to the bottom of the guiding tank (11), and a collecting bottle (14) disposed at the bottom of the drain pipe (13), characterized in that, Also includes: A guiding mechanism (2) is provided inside the guiding tank (11). The guiding mechanism (2) includes an inner tank (21) fixedly connected to the inner wall of the guiding tank (11). A plurality of guide deceleration plates (22) are fixedly connected to the inner wall of the inner tank (21). A serpentine protrusion (221) is fixedly connected to the top of the guide deceleration plate (22). A diversion pipe (23) is sleeved on the outer side of the inner tank (21). The guide deceleration plate (22) is inclined, and there is a gap between the lower end of the guide deceleration plate (22) and the inner wall of the inner tank (21).

2. The acetic anhydride distillation guiding and collecting device according to claim 1, characterized in that, The bottom left side of the diversion pipe (23) is fixedly connected to the inlet pipe (231), and the top right side of the diversion pipe (23) is fixedly connected to the outlet pipe (232). Both the inlet pipe (231) and the outlet pipe (232) pass through the guide tank (11) and extend to the outside.

3. The acetic anhydride distillation guiding and collecting device according to claim 2, characterized in that, A rubber outlet sleeve (131) is fixedly connected to the bottom of the drain pipe (13), a convex plate (132) is fixedly connected to the outside of the drain pipe (13), a sealing ring (133) is fitted at the bottom of the convex plate (132), and a sealing plug (141) is fitted at the top of the collection bottle (14). The sealing plug (141) has an opening at its center, and the bottom of the drain pipe (13) and the rubber outlet sleeve (131) are both inserted into the opening on the sealing plug (141).

4. The acetic anhydride distillation guiding and collecting device according to claim 3, characterized in that, The bottom of the convex disc (132) is provided with a convex ring, which is used to position and install the sealing ring (133), and the bottom of the sealing ring (133) contacts the top of the sealing plug (141).

5. The acetic anhydride distillation guiding and collecting device according to claim 2, characterized in that, A protruding ring (15) is fixedly connected to the outside of the guide tank (11), and a positioning block (151) is fixedly connected to the bottom left side of the protruding ring (15).

6. The acetic anhydride distillation guiding and collecting device according to claim 5, characterized in that, The positioning block (151) is positioned and inserted into the bracket (1), the bottom of the protruding ring (15) contacts the top of the bracket (1), and the protruding ring (15) and the bracket (1) are used to cooperate in supporting the guide tank (11).

7. The acetic anhydride distillation guiding and collecting device according to claim 3, characterized in that, The bottom of the air inlet pipe (12) is connected to the inner tank (21), and the bottom of the inner tank (21) is connected to the top of the drain pipe (13).

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