Pressure adjustable distillation collection device for benzyl salicylate

Abstract

This utility model relates to the technical field of distillation collection devices, specifically a pressure-adjustable benzyl salicylate distillation collection device, comprising a distillation tank and a collection tank. The distillation tank has a feed inlet on one side of its top, and a gas guide pipe connected to the other side of its top. The other end of the gas guide pipe is connected to the collection tank, and a vacuum pump is connected to one side of the collection tank. A stirring device is installed inside the distillation tank, and a liquid outlet with a valve is located at the center of its bottom. A pressure sensor and a heating element are also installed inside the distillation tank. A condensing device is fitted onto the outer side of the gas guide pipe near the collection tank. This utility model allows for pressure adjustment of the distillation tank and collection tank via a vacuum pump, facilitating reduced-pressure distillation of benzyl salicylate. The pressure display and pressure sensor work together to monitor the internal pressure of the device in real time, and the stirring device thoroughly agitates the liquid to prevent clumping.

Description

Technical Field

[0001] This utility model relates to the technical field of distillation collection devices, specifically a pressure-adjustable benzyl salicylate distillation collection device. Background Technology

[0002] Benzyl salicylate, also known as benzyl o-hydroxybenzoate, has a slightly sweet and fragrant taste and is used as a fixative in cosmetics and soap fragrances. It has a melting point >24℃ and a boiling point of 170℃ (0.67 kPa). In the prior art, benzyl salicylate is prepared by esterification of salicylic acid and benzyl alcohol using sulfuric acid as a catalyst. The resulting benzyl salicylate needs to be purified by distillation. Due to its high boiling point, vacuum distillation is currently used for its purification.

[0003] Existing vacuum distillation apparatuses cannot monitor internal pressure in real time, are inconvenient to adjust, and lack internal stirring devices, making the liquid prone to clumping and affecting distillation efficiency. Therefore, we propose a pressure-adjustable benzyl salicylate distillation and collection device. Utility Model Content

[0004] The purpose of this invention is to provide a pressure-adjustable benzyl salicylate distillation and collection device, which can monitor the internal pressure of the device in real time, adjust the internal pressure of the device through a vacuum pump, and fully stir the liquid through a stirring device to make it evaporate and prevent agglomeration.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adjustable pressure benzyl salicylate distillation and collection device includes a distillation tank and a collection tank. The distillation tank has a feed inlet on one side of its top and a gas guide pipe connected to the other side of its top. The other end of the gas guide pipe is connected to the collection tank, and a vacuum pump is connected to one side of the collection tank. The distillation tank is equipped with a stirring device inside and a liquid outlet with a valve at the center of its bottom. A pressure sensor and a heating element are also installed inside the distillation tank. A condenser is fitted around the end of the gas guide pipe closest to the collection tank.

[0007] Preferably, a pressure display is provided on the outer wall of the distillation tank, and the pressure display is electrically connected to the pressure sensor.

[0008] Preferably, a motor is provided at the top center of the distillation tank, and the output end of the motor is fixedly connected to the rotating shaft via a coupling. A stirring device is connected to the bottom end of the rotating shaft. The stirring device includes a first fixing block rotatably disposed at the bottom center of the inner side of the distillation tank via a bearing, a second fixing block fixedly connected to the bottom end of the rotating shaft, and multiple sets of connecting parts symmetrically disposed between the first fixing block and the second fixing block.

[0009] Preferably, the connecting member includes a first connecting rod, a second connecting rod, and a slider. One end of the first connecting rod is fixedly connected to a first fixing block, and the other end of the first connecting rod is fixedly connected to the slider. One end of the second connecting rod is fixedly connected to a second fixing block, and the other end of the second connecting rod is fixedly connected to the slider. The inner wall of the distillation tank is provided with an annular groove, and the slider is disposed inside the annular groove and can slide inside the annular groove.

[0010] Preferably, a circulating water inlet is connected to the lower part of the outer wall of the condensing device, a water outlet is provided at the upper part of the outer wall of the condensing device, a first through hole is opened at the top of the condensing device for the passage of the air guide pipe, and a second through hole is opened at the bottom of the condensing device for the passage of the air guide pipe, and both the first through hole and the second through hole are sealed and sleeved with the outer wall of the air guide pipe.

[0011] Preferably, the condenser has multiple steering columns on both sides inside. The air guide pipe enters the condenser through the first through hole, extends inside the condenser, and changes its extension direction by bypassing the steering columns. Finally, it extends out of the condenser through the second through hole.

[0012] Preferably, a drying tube is also provided between the collection tank and the vacuum pump, and the drying tube is filled with desiccant and adsorbent.

[0013] Preferably, the distillation tank is fixedly mounted on the first support frame, the condensation device is fixedly mounted on the second support frame, the bottom of the second support frame is also provided with a support plate, the collection tank and the vacuum pump are mounted on the support plate, and the second support frame is provided with a through hole for the gas guide pipe to pass through.

[0014] Preferably, the bottom of the distillation jar is hemispherical or semi-ellipsoidal.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The pressure-adjustable benzyl salicylate distillation and collection device includes a distillation tank and a collection tank. A feed inlet is located on one side of the top of the distillation tank, and a gas guide pipe is connected to the other side of the top of the distillation tank. The other end of the gas guide pipe is connected to the collection tank, and a vacuum pump is connected to one side of the collection tank. A pressure sensor and a heating assembly are also installed inside the distillation tank. A pressure display is installed on the outer wall of the distillation tank, and the pressure display is electrically connected to the pressure sensor. The pressure inside the distillation tank and collection tank can be adjusted by the vacuum pump, facilitating reduced pressure distillation of benzyl salicylate. The pressure display and pressure sensor work together to monitor the internal pressure of the device in real time.

[0017] 2. The pressure-adjustable benzyl salicylate distillation and collection device has a condenser sleeved on the outer side of the gas guide pipe near the collection tank. Multiple steering columns are set on both sides inside the condenser. The gas guide pipe enters the condenser through the first through hole, extends inside the condenser, and changes its extension direction by bypassing the steering columns. Finally, it extends out of the condenser through the second through hole, which can increase the contact area between the gas guide pipe and the cooling water, so that the benzyl salicylate gas in the gas guide pipe can be fully condensed.

[0018] 3. The pressure-adjustable benzyl salicylate distillation and collection device is equipped with a stirring device, including a first fixed block rotatably mounted on the bottom center of the inner side of the distillation tank via a bearing, a second fixed block fixedly connected to the bottom of the rotating shaft, and multiple sets of connecting parts symmetrically arranged between the first fixed block and the second fixed block. The multiple sets of connecting parts are rotated simultaneously by a motor, which can fully stir the benzyl salicylate liquid in the distillation tank, causing it to evaporate and preventing agglomeration. Attached Figure Description

[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 structure of the distillation tank in this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the condensation device in this utility model.

[0022] In the diagram: 1. Distillation tank; 2. Collection tank; 3. Feed inlet; 4. Gas guide pipe; 5. Vacuum pump; 51. Drying pipe; 6. Stirring device; 61. First fixing block; 62. Second fixing block; 63. Connecting piece; 631. First connecting rod; 632. Second connecting rod; 633. Sliding block; 64. Annular groove; 7. Discharge port; 8. Condensation device; 81. Water inlet; 82. Water outlet; 83. First through hole; 84. Second through hole; 85. Steering column; 9. Motor; 10. Rotating shaft; 11. Pressure sensor; 12. Heating assembly; 13. Pressure display; 100. First support frame; 200. Second support frame; 300. Support plate. Detailed Implementation

[0023] 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 protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0027] Please see Figures 1-3 As shown, this utility model provides a technical solution:

[0028] An adjustable pressure benzyl salicylate distillation and collection device includes a distillation tank 1 and a collection tank 2. A feed inlet 3 is provided on one side of the top of the distillation tank 1, and a gas guide pipe 4 is connected to the other side of the top of the distillation tank 1. The other end of the gas guide pipe 4 is connected to the collection tank 2. The gas generated during distillation enters the collection tank 2 through the gas guide pipe 4. A vacuum pump 5 is connected to one side of the collection tank 2 to regulate the internal pressure of the distillation tank 1. A stirring device 6 is provided inside the distillation tank 1, and a liquid outlet 7 is opened at the center of the bottom of the distillation tank 1. The liquid outlet 7 is equipped with a valve, and the residual liquid in the distillation tank 1 is discharged through the liquid outlet 7 after distillation. A pressure sensor 11 and a heating element 12 are also provided inside the distillation tank 1. A condenser 8 is fitted on the outer side of the gas guide pipe 4 near the collection tank 2.

[0029] In this embodiment, a pressure display 13 is provided on the outer wall of the distillation tank 1. The pressure display 13 is electrically connected to the pressure sensor 11. The pressure display 13 can display the real-time pressure inside the distillation tank 1 and can be adjusted by starting the vacuum pump 5. After the reaction is completed, the pressure inside the distillation tank 1 can be restored to normal pressure by opening the feed port 3 and then the tank can be cleaned.

[0030] In this embodiment, a motor 9 is installed at the top center of the distillation tank 1. The output end of the motor 9 is fixedly connected to the rotating shaft 10 via a coupling. A stirring device 6 is connected to the bottom end of the rotating shaft 10. The motor 9 drives the rotating shaft 10 to rotate, thereby driving the stirring device 6 to rotate. The stirring device 6 includes a first fixing block 61 rotatably mounted at the bottom center of the inner side of the distillation tank 1 via bearings, a second fixing block 62 fixedly connected to the bottom end of the rotating shaft 10, and multiple sets of connecting parts 63 symmetrically arranged between the first fixing block 61 and the second fixing block 62. The connecting parts 63 include a first connecting rod 631, a second connecting rod 632, and a slider 633. One end of the first connecting rod 631 is fixedly connected to the first fixing block 61, and the other end of the first connecting rod 631 is fixedly connected to the slider 633. The second connecting rod 632 is fixedly connected at one end to the second fixed block 62 and at the other end to the slider 633. The inner wall of the distillation tank 1 is provided with an annular groove 64, and the slider 633 is disposed inside the annular groove 64 and can slide inside the annular groove 64. The second fixed block 62 is driven to rotate by the rotating shaft 10. The second fixed block 62 drives the slider 633 to make a circular motion around the annular groove 64 through the second connecting rod 632, thereby driving the first connecting rod 631 fixedly connected to the slider 633 to rotate. The simultaneous rotation of multiple sets of connecting parts 63 can fully stir the liquid inside the distillation tank 1, causing it to evaporate and preventing agglomeration. In addition, the bottom of the distillation tank 1 is hemispherical or semi-ellipsoidal, which can make the liquid more concentrated and the stirring more thorough.

[0031] In this embodiment, a circulating water inlet 81 is connected to the lower part of the outer wall of the condensing device 8, and a water outlet 82 is provided on the upper part of the outer wall of the condensing device 8. A first through hole 83 is provided on the top of the condensing device 8 for the passage of the air guide pipe 4, and a second through hole 84 is provided on the bottom of the condensing device 8 for the passage of the air guide pipe 4. Both the first through hole 83 and the second through hole 84 are sealed and sleeved with the outer wall of the air guide pipe 4. Multiple steering columns 85 are provided on both sides inside the condensing device 8. The air guide pipe 4 enters the condensing device 8 through the first through hole 83, extends inside the condensing device 8, and changes its extension direction by bypassing the steering columns 85. Finally, it extends out of the condensing device 8 through the second through hole 84. The air guide pipe 4 continuously extends and changes direction inside the condensing device 8, which can increase the contact area between the air guide pipe 4 and the cooling water, so that the gas inside the air guide pipe 4 can be fully condensed.

[0032] To prevent benzyl salicylate from corroding the vacuum pump 5, a drying tube 51 is provided between the collection tank 2 and the vacuum pump 5. The drying tube 51 is filled with desiccant and adsorbent. The desiccant and adsorbent inside the drying tube 51 can adsorb water vapor and organic matter, thus protecting the vacuum pump 5.

[0033] To secure the device, the distillation tank 1 is fixedly mounted on the first support frame 100, the condensation device 8 is fixedly mounted on the second support frame 200, and a support plate 300 is also provided at the bottom of the second support frame 200. The collection tank 2 and the vacuum pump 5 are mounted on the support plate 300, and the second support frame 200 is provided with a through hole for the gas guide pipe 4 to pass through.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure-adjustable benzyl salicylate distillation and collection device, comprising a distillation tank (1) and a collection tank (2), characterized in that: The distillation tank (1) has a feed inlet (3) on one side of its top, and a gas guide pipe (4) is connected to the other side of its top. The other end of the gas guide pipe (4) is connected to a collection tank (2), and a vacuum pump (5) is connected to one side of the collection tank (2). The distillation tank (1) is equipped with a stirring device (6), and a liquid outlet (7) is opened at the center of the bottom of the distillation tank (1). The liquid outlet (7) is equipped with a valve. The distillation tank (1) is also equipped with a pressure sensor (11) and a heating component (12). A condensing device (8) is fitted on the outer side of the gas guide pipe (4) near the collection tank (2).

2. The pressure-adjustable benzyl salicylate distillation and collection device according to claim 1, characterized in that: The outer wall of the distillation tank (1) is provided with a pressure display (13), which is electrically connected to the pressure sensor (11).

3. The pressure-adjustable benzyl salicylate distillation and collection device according to claim 1, characterized in that: A motor (9) is installed at the top center of the distillation tank (1). The output end of the motor (9) is fixedly connected to the rotating shaft (10) via a coupling. A stirring device (6) is connected to the bottom end of the rotating shaft (10). The stirring device (6) includes a first fixing block (61) rotatably installed at the bottom center of the inner side of the distillation tank (1) via a bearing, a second fixing block (62) fixedly connected to the bottom end of the rotating shaft (10), and multiple sets of connecting parts (63) symmetrically arranged between the first fixing block (61) and the second fixing block (62).

4. The pressure-adjustable benzyl salicylate distillation and collection device according to claim 3, characterized in that: The connector (63) includes a first connecting rod (631), a second connecting rod (632), and a slider (633). One end of the first connecting rod (631) is fixedly connected to the first fixing block (61), and the other end of the first connecting rod (631) is fixedly connected to the slider (633). One end of the second connecting rod (632) is fixedly connected to the second fixing block (62), and the other end of the second connecting rod (632) is fixedly connected to the slider (633). The inner wall of the distillation tank (1) is provided with an annular groove (64), and the slider (633) is disposed inside the annular groove (64) and can slide inside the annular groove (64).

5. The pressure-adjustable benzyl salicylate distillation and collection device according to claim 1, characterized in that: The condensing device (8) has a circulating water inlet (81) connected to the lower part of its outer wall, a water outlet (82) provided on the upper part of its outer wall, a first through hole (83) for the air guide pipe (4) to pass through on the top of the condensing device (8), and a second through hole (84) for the air guide pipe (4) to pass through on the bottom of the condensing device (8). Both the first through hole (83) and the second through hole (84) are sealed and sleeved with the outer wall of the air guide pipe (4).

6. The pressure-adjustable benzyl salicylate distillation and collection device according to claim 5, characterized in that: The condenser (8) has multiple steering columns (85) on both sides inside. The air guide pipe (4) enters the condenser (8) through the first through hole (83), extends inside the condenser (8), and changes its extension direction by bypassing the steering column (85). Finally, it extends out of the condenser (8) through the second through hole (84).

7. The pressure-adjustable benzyl salicylate distillation and collection device according to claim 1, characterized in that: A drying tube (51) is also provided between the collection tank (2) and the vacuum pump (5), and the drying tube (51) is filled with desiccant and adsorbent.

8. The pressure-adjustable benzyl salicylate distillation and collection device according to claim 1, characterized in that: The distillation tank (1) is fixedly mounted on the first support frame (100), the condenser (8) is fixedly mounted on the second support frame (200), the bottom of the second support frame (200) is also provided with a support plate (300), the collection tank (2) and the vacuum pump (5) are mounted on the support plate (300), and the second support frame (200) is provided with a through hole for the gas guide pipe (4) to pass through.

9. The pressure-adjustable benzyl salicylate distillation and collection device according to claim 1, characterized in that: The bottom of the distillation jar (1) is hemispherical or semi-ellipsoidal.

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