A solvent recovery and purification device for organic chemistry experiments

Abstract

The utility model relates to the separation technical field discloses a kind of solvent recovery purification devices for organic chemistry experiment, including two hole vertical columns, the inside sliding connection of one of the hole vertical columns has two connecting columns, the outside sliding connection of the connecting column has two limit rings, the outside fixed connection of the connecting column has connecting block, the outside fixed connection of one of the connecting block has support flat plate, the inside sliding connection of another connecting block has sliding assembly.In the utility model, by inserting connecting column in the hole vertical column suitable hole position, adjusting connecting column to suitable position again, limit ring is rotated to restrict connecting column, then rotating threaded column will sliding arc plate be pushed to the inside of connecting block, adjust the interval between fixed arc plate and sliding arc plate, adapt to different containers, realize the function of multidirectional adjustment, play the effect of adapting to different purification device vessels.

Description

Technical Field

[0001] This utility model relates to the field of separation technology, and in particular to a solvent recovery and purification device for organic chemical experiments. Background Technology

[0002] Organic chemistry experiments are the core practical component of the organic chemistry discipline. Based on organic chemistry theory, they involve designing and conducting specific experiments to explore the preparation, separation, purification, structural identification, and property rules of organic compounds. They serve as a bridge connecting theoretical knowledge with practical applications. The core objective is not only to verify theories but also to cultivate experimental skills, scientific thinking, and innovative abilities. They are widely used in research and development and production in fields such as pharmaceuticals, materials, food, and daily chemicals. Solvent recovery and purification devices are specialized equipment systems used to recover organic solvents used in industrial production and laboratory operations, removing impurities and restoring solvent purity through physical and chemical methods, making them recyclable.

[0003] The core structure of a solvent recovery and purification device for organic chemistry experiments typically includes a distillation flask, a heating element, a condenser, and a receiving flask. Some devices are also equipped with a thermometer, a water separator, and a vacuum system. During operation, the solvent to be recovered is first added to the distillation flask, and the temperature is controlled by the heating element to vaporize the solvent into steam. The steam enters the condenser, is cooled by cold water outside the condenser, and condenses into liquid. Finally, the liquid flows along the condenser into the receiving flask to complete the recovery. The temperature range of the distillation fraction is controlled by a thermometer, and the boiling point of the solvent is lowered by a decompression system, achieving efficient and low-loss solvent purification and recycling.

[0004] In the existing technology, some purification devices are designed as fixed units, which makes it difficult for the devices to adapt to various purification requirements. This can easily lead to solvent evaporation and loss, which not only prolongs the experimental cycle but also introduces external impurities that affect the purification purity. Therefore, in order to address the above shortcomings, a solvent recovery and purification device for organic chemistry experiments is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a solvent recovery and purification device for organic chemistry experiments, which aims to improve the problem that some purification devices in the prior art are difficult to adjust from multiple angles and directions.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An organic chemistry experiment solvent recovery and purification device includes a support platform, a collection vessel placed on the top right side of the support platform, an adjustment mechanism fixedly connected to the top of the support platform, a purification vessel detachably connected inside the adjustment mechanism, and an anti-backflow mechanism fixedly connected to the outside of the purification vessel.

[0008] The adjustment mechanism includes two perforated vertical columns, the bottoms of which are fixedly connected to the top of the support platform. Two connecting columns are slidably connected inside one of the perforated vertical columns, and two limiting rings are slidably connected outside the connecting column. A connecting block is fixedly connected to the outside of the connecting column. A support plate is fixedly connected to the outside of one of the connecting blocks, and a sliding component is slidably connected inside the other connecting block.

[0009] As a further description of the above technical solution:

[0010] The sliding assembly includes a sliding arc plate, the outside of which is slidably connected to the inside of the connecting block, and the inside of which is threadedly connected to a threaded post;

[0011] As a further description of the above technical solution:

[0012] The anti-backflow mechanism includes a dripping head, which is fixedly connected to the outside of the purification vessel. A rotating column is rotatably connected inside the dripping head. A baffle plate is fixedly connected to the outside of the rotating column. A sealing ring is fixedly connected inside the dripping head.

[0013] As a further description of the above technical solution:

[0014] A spring is fixedly connected to the outside of the barrier plate, and the other end of the spring is fixedly connected to the inner wall of the dispensing head.

[0015] As a further description of the above technical solution:

[0016] The barrier plate is rotatably connected inside the dispensing head, and the outside of the barrier plate is in contact with the outside of the local sealing ring;

[0017] As a further description of the above technical solution:

[0018] The external thread of the threaded column is connected to the inside of the connecting block, and a fixed arc plate is fixedly connected to the inside of another connecting block;

[0019] As a further description of the above technical solution:

[0020] Another of the hole-shaped vertical columns is slidably connected to the outside of the limiting ring, and the two connecting columns have circular holes inside.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by inserting the connecting column into the appropriate hole position of the vertical column, adjusting the connecting column to the appropriate position, rotating the limiting ring to restrict the connecting column, and then rotating the threaded column to push the sliding arc plate into the interior of the connecting block, the interval between the fixed arc plate and the sliding arc plate is adjusted to adapt to different containers, realizing the function of multi-directional adjustment, and achieving the effect of adapting to different purification devices and vessels.

[0023] 2. In this utility model, the solution is dripped into the dripping head through the purification vessel. After accumulating to a certain amount, the gravity of the solution will push the baffle plate to rotate, and at the same time pull the spring, so that the solution flows out between the baffle plate and the sealing ring. This achieves the function of preventing the solution from returning to the purification vessel and protects the purification quality. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a solvent recovery and purification device for organic chemistry experiments proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the connecting block of an organic chemistry experimental solvent recovery and purification device proposed in this utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a schematic diagram of the purification vessel of a solvent recovery and purification device for organic chemistry experiments proposed in this utility model.

[0028] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0029] Legend:

[0030] 1. Support platform; 2. Collection container; 3. Adjustment mechanism; 31. Hole column; 32. Connecting column; 33. Limiting ring; 34. Connecting block; 35. Fixed arc plate; 36. Sliding assembly; 361. Sliding arc plate; 362. Threaded column; 37. Support plate; 38. Circular hole; 4. Purification container; 5. Anti-backflow mechanism; 51. Dropper head; 52. Rotating column; 53. Barrier plate; 54. Sealing ring; 55. Spring. Detailed Implementation

[0031] 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.

[0032] A solvent recovery and purification device for organic chemistry experiments, referring to Figures 1 to 3 The device includes a support platform 1, which provides a stable and level mounting and placement reference for all other structures on the device. A collection vessel 2 is placed on the top right side of the support platform 1, specifically for collecting purified solvent that meets the requirements. An adjustment mechanism 3 is fixedly connected to the top of the support platform 1. The adjustment mechanism 3 includes two perforated vertical columns 31, providing channels and support points for the installation and height adjustment of the connecting columns 32. The interior of another perforated vertical column 31 is slidably connected to the exterior of a limiting ring 33. Circular holes 38 are formed inside the two connecting columns 32. The bottom of 1 is fixedly connected to the top of the support platform 1. Two connecting columns 32 are slidably connected inside the vertical column 31 with the hole, which serves to connect the vertical column 31 with the connecting block 34 and the support plate 37. Two limiting rings 33 are slidably connected to the outside of the connecting column 32, which are used to fix and limit the position of the connecting column 32. The connecting block 34 is fixedly connected to the outside of the connecting column 32, which provides support and guidance for the installation and movement of the sliding component 36. The support plate 37 is fixedly connected to the outside of one of the connecting blocks 34, which provides support space for experimental operation.

[0033] Specifically, the support platform 1 provides a stable horizontal reference for all structures, ensuring overall operational stability. The collection vessel 2 can accurately collect purified qualified solvent, avoiding solvent waste and contamination. The adjustment mechanism 3 is reasonably designed, with the perforated vertical column 31 providing an installation and height adjustment channel for the connecting column 32. The connecting column 32, together with the limiting ring 33, can flexibly fix the limit to meet different experimental height requirements. The connecting block 34 provides support and guidance for the sliding component 36, while the support plate 37 expands the experimental operation space. The overall structure takes into account both stability and flexibility, helping to efficiently complete solvent recovery and purification experiments and improving experimental convenience and reliability.

[0034] Another connecting block 34 has a sliding component 36 internally slidably connected. The sliding component 36 includes a sliding arc plate 361, which directly contacts the purification container. It fits the outer wall of the container through its own arc structure and, together with the fixed arc plate 35, forms a clamping force on the container. The external sliding arc plate 361 is slidably connected to the inside of the connecting block 34. The internal thread of the sliding arc plate 361 is threadedly connected to a threaded post 362, which converts the rotational motion into the linear motion of the sliding arc plate 361 through its own thread structure, providing power for the sliding of the sliding arc plate 361. The external thread of the threaded post 362 is threadedly connected to the inside of the connecting block 34. Another connecting block 34 has a fixed arc plate 35 internally fixedly connected, which cooperates with the sliding arc plate 361 to provide a fixed support surface for the container.

[0035] Specifically, the fixed arc plate 35 provides a stable support surface for the purification container, while the sliding arc plate 361, with its arc structure, can closely fit the outer wall of the container. Together, they form a reliable clamping force, effectively preventing the container from shaking or shifting during the experiment. At the same time, the sliding arc plate 361, through its threaded connection with the threaded column 362, can convert the rotation of the threaded column 362 into its own linear motion, facilitating flexible adjustment of the clamping distance and adapting to purification containers of different sizes, thus improving the versatility of the device. The overall structure not only ensures the stability of the container but also enhances operational flexibility, providing strong support for the smooth conduct of solvent recovery and purification experiments.

[0036] Reference Figure 1 , Figure 4 and Figure 5 The regulating mechanism 3 has a detachable internal connection to a purification vessel 4, whose main function is to hold the solution to be purified and provide a stable storage and reaction space for the solution. An anti-backflow mechanism 5 is fixedly connected to the outside of the purification vessel 4. The anti-backflow mechanism 5 includes a dripping head 51, which receives the solution from the purification vessel 4 and guides it to drip. The dripping head 51 is fixedly connected to the outside of the purification vessel 4. A rotating column 52 is rotatably connected inside the dripping head 51, which provides stable rotational support for the barrier plate 53, allowing the barrier plate 53 to rotate flexibly around the rotating column 52. The rotating column 52 is fixedly connected to the outside of the barrier plate 53, whose main function is… The channel is opened under the action of gravity of the solution. The baffle plate 53 is rotatably connected to the inside of the dispensing head 51. The outside of the baffle plate 53 is in contact with the outside of the local sealing ring 54. A spring 55 is fixedly connected to the outside of the baffle plate 53. Its main function is to provide a continuous restoring force for the baffle plate 53, so that the baffle plate 53 can return to the position of fitting with the sealing ring 54 in time after the solution gravity disappears. The other end of the spring 55 is fixedly connected to the inner wall of the dispensing head 51. A sealing ring 54 is fixedly connected to the inside of the dispensing head 51. Its main function is to fill the gap between the baffle plate 53 and the inner wall of the dispensing head 51 when the baffle plate 53 closes the channel.

[0037] Specifically, the purification vessel 4 can stably hold the solution to be purified, providing a reliable storage and reaction space to ensure basic experimental operations. The anti-backflow mechanism 5 is ingeniously designed, with the dropper head 51 accurately receiving and guiding the solution drop. The rotating column 52 provides stable rotational support for the barrier plate 53. Under the action of gravity, the barrier plate 53 opens the channel. After the solution has dripped, the spring 55 provides a restoring force to the barrier plate 53, allowing it to fit against the sealing ring 54 in time. The sealing ring 54 can fill the gap between the barrier plate 53 and the inner wall of the dropper head 51, effectively preventing solution backflow.

[0038] The implementation principle of this application embodiment is as follows: First, insert the connecting post 32 into the appropriate hole of the hole vertical post 31, slide the connecting post 32 to the required height, then rotate the limiting ring 33 to make it fit tightly against the outer wall of the hole vertical post 31, fix the position of the connecting post 32, then rotate the threaded post 362 to push the sliding arc plate 361 to slide in the connecting block 34, adjust the distance between it and the fixed arc plate 35, and firmly clamp the purification vessel 4 between the two.

[0039] After the purification vessel 4 is fixed, the solution to be treated is added inside. After the solution is processed in the purification vessel 4, it flows through its bottom into the dripping head 51. When the solution in the dripping head 51 accumulates to a certain amount, the spring 55 is pulled, thereby pushing the baffle plate 53 to rotate around the rotating column 52, causing the baffle plate 53 to separate from the sealing ring 54. As a result, the solution drips out from the gap and falls into the collecting vessel 2 on the support platform 1 below. After the solution has finished dripping, the spring 55 rebounds, pulling the baffle plate 53 back to its original position, and it re-engages tightly with the sealing ring 54, blocking the backflow channel and completing one solvent recovery and purification operation.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A solvent recovery and purification device for organic chemistry experiments, comprising a support platform (1), characterized in that: A collection vessel (2) is placed on the top right side of the support platform (1). An adjustment mechanism (3) is fixedly connected to the top of the support platform (1). A purification vessel (4) is detachably connected inside the adjustment mechanism (3). An anti-backflow mechanism (5) is fixedly connected to the outside of the purification vessel (4). The adjusting mechanism (3) includes two perforated vertical columns (31), the bottoms of which are fixedly connected to the top of the support platform (1). One of the perforated vertical columns (31) has two connecting columns (32) slidably connected inside, and two limiting rings (33) slidably connected outside the connecting column (32). A connecting block (34) is fixedly connected outside the connecting column (32). A support plate (37) is fixedly connected outside one of the connecting blocks (34), and a sliding assembly (36) is slidably connected inside the other connecting block (34). The anti-backflow mechanism (5) includes a dripping head (51). The outside of the dripping head (51) is fixedly connected to the outside of the purification vessel (4). The inside of the dripping head (51) is rotatably connected to a rotating column (52). The outside of the rotating column (52) is fixedly connected to a baffle plate (53). The inside of the dripping head (51) is fixedly connected to a sealing ring (54). The outside of the baffle plate (53) is fixedly connected to a spring (55). The other end of the spring (55) is fixedly connected to the inner wall of the dripping head (51). The baffle plate (53) is rotatably connected to the inside of the dripping head (51). The outside of the baffle plate (53) is in contact with the outside of the sealing ring (54).

2. The solvent recovery and purification device for organic chemistry experiments according to claim 1, characterized in that: The sliding assembly (36) includes a sliding arc plate (361), the outside of which is slidably connected to the inside of the connecting block (34), and the inside of the sliding arc plate (361) is threadedly connected to a threaded post (362).

3. The solvent recovery and purification device for organic chemistry experiments according to claim 2, characterized in that: The external thread of the threaded column (362) is connected to the inside of the connecting block (34), and a fixed arc plate (35) is fixedly connected to the inside of another connecting block (34).

4. The solvent recovery and purification device for organic chemistry experiments according to claim 1, characterized in that: Another of the hole pillars (31) is slidably connected to the outside of the limiting ring (33), and the two connecting pillars (32) have circular holes (38) inside.

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