Chemical extraction distillation apparatus

Abstract

The utility model relates to chemical experiment equipment technical field discloses a chemical medicine extraction distillation device, including electronic temperature regulating electric heating jacket, the top of electronic temperature regulating electric heating jacket places single -mouth round bottom beaker, the top of single -mouth round bottom beaker is detachably connected with distillation head, the top opening of distillation head is provided, the upper portion of distillation head is provided with condenser pipe, one end of distillation pipe is fixedly connected with hose. In the utility model, through setting the adjusting assembly, the piston is conically cooperated with the through -hole, can through the change joint insertion depth flexible adjustment annular gap size, thereby linear control airflow throughput, satisfies different distillation rate demand, simultaneously, the positioning block is clamped into the clamping groove under the action of spring B, ensures that the joint positioning is stable, avoids the displacement or the shaking caused due to the airflow impact, makes the adjusted flow keep constant, improves the controllability of distillation process and the accuracy of experimental data.

Description

Technical Field

[0001] This utility model relates to the field of chemical experimental equipment technology, and in particular to a chemical extraction and distillation apparatus. Background Technology

[0002] A chemical distillation apparatus is an experimental device used to separate and collect target fractions from chemical mixtures through heating, vaporization, and condensation. Its typical structure includes components such as an electronically temperature-controlled heating mantle, a single-necked round-bottom beaker, a distillation head, a condenser, a flexible tube, a ground glass triangular beaker, and an iron stand. The electronically temperature-controlled heating mantle is used to heat and vaporize the mixture in the single-necked round-bottom beaker. The generated vapor enters the condenser through the top opening of the distillation head, liquefies within the condenser, and then flows through the flexible tube into the ground glass triangular beaker for collection.

[0003] In existing chemical extraction distillation apparatuses, the mixture within the reaction vessel is typically vaporized using a heating device. The vapor then passes through the distillation head and enters a condenser to liquefy and collect. The gas flow regulation generally relies on simple on / off valves or manually pluggable connectors to control the steam flow. Operators must adjust the connector insertion depth or valve opening in real-time based on experience to adapt to different distillation rate requirements. While this method achieves basic on / off control or coarse flow adjustment, it lacks a precise quantitative regulation mechanism in actual operation, making it difficult to meet the demands of experimental scenarios requiring high distillation rate stability.

[0004] Traditional connectors and distillation head through-holes often employ planar or cylindrical surface mating structures, making it impossible to linearly adjust the annular gap through continuous changes in connector insertion depth. This makes it difficult to meet the demands of high-precision experiments for fine control of distillation rates. Furthermore, the lack of a dedicated positioning and locking mechanism means that the adjusted connector is prone to loosening or displacement under the continuous impact of steam flow, causing fluctuations in the set flow parameters and affecting the stability of fraction collection efficiency. Therefore, a chemical extraction distillation apparatus is proposed to address these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a chemical extraction distillation device, which aims to improve the problems of inaccurate airflow regulation and unstable distillation rate caused by easy displacement of the connector in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a chemical extraction distillation device, comprising an electronically temperature-controlled heating mantle, a single-necked round-bottom beaker placed on the top of the electronically temperature-controlled heating mantle, a distillation head detachably connected to the top of the single-necked round-bottom beaker, the top of the distillation head being open, a condenser tube being disposed above the distillation head, a flexible tube being fixedly connected to one end of the condenser tube, a ground glass triangular beaker being fixedly connected to the other end of the condenser tube, a connector being fixedly connected to the end of the flexible tube, and an adjustment component being disposed between the connector and the distillation head;

[0007] The adjusting assembly includes a piston, which is fixedly connected to the bottom end of the connector. A through hole is provided at the bottom of the distillation head, and the piston is located on the inner wall of the through hole. An air inlet is provided on the surface of the connector, and a groove is provided on the inner wall of the distillation head. A positioning block is slidably connected to the surface of the piston, and the outer wall of the positioning block is engaged with the inner wall of the limiting groove.

[0008] As a further description of the above technical solution: the connector is provided with a sealing assembly, the sealing assembly includes a sealing ring, a slider is fixedly connected to the inner side of the sealing ring, a groove is opened on the outer wall of the connector, the sealing ring is slidably connected to the inner wall of the groove through the slider, a spring A is fixedly connected to the inner wall of the groove, the top end of the spring A is fixedly connected to the inner wall of the groove, the bottom end of the spring is fixedly connected to the top of the slider, and the bottom of the sealing ring is in sealing contact with the top of the distillation head.

[0009] As a further description of the above technical solution: the inner wall of the piston is provided with a limiting groove, the top of the positioning block is fixedly connected to a limiting block, and the positioning block is slidably connected to the inner wall of the limiting groove through the limiting block.

[0010] As a further description of the above technical solution: both the through hole and the piston are conical, and the piston is configured to cooperate with the through hole.

[0011] As a further description of the above technical solution: the slot is annular and symmetrically opened at equal intervals along the longitudinal direction on the inner wall of the distillation head.

[0012] As a further description of the above technical solution: a spring B is fixedly connected to the inner wall of the piston, and the two ends of the spring B are respectively fixedly connected to the side of the positioning block.

[0013] As a further description of the above technical solution: an iron frame is provided below the condenser tube, and a retaining ring is fixedly connected to the top of the iron frame, and the surface of the condenser tube is engaged with the surface of the retaining ring.

[0014] As a further description of the above technical solution: the outer side of the distillation head is provided with an external thread, the top of the single-necked round-bottom beaker is provided with an internal thread, and the distillation head is threadedly connected to the top of the single-necked round-bottom beaker.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, through the set adjustment component, the piston and the conical fit of the through hole can flexibly adjust the size of the annular gap by changing the insertion depth of the connector, thereby linearly controlling the airflow to meet the requirements of different distillation rates; at the same time, the positioning block is locked into the slot under the action of spring B to ensure that the connector is firmly positioned and avoid displacement or shaking caused by airflow impact, so that the adjusted flow rate remains constant, improving the controllability of the distillation process and the accuracy of experimental data.

[0017] 2. In this utility model, through the sealing component, the sealing ring, under the elastic action of spring A, and through the sliding cooperation of the slider and the groove, always tightly presses against the top of the distillation head to form a dynamic seal, effectively preventing steam leakage and ensuring operational safety. Attached Figure Description

[0018] Figure 1 This is a front view of a chemical extraction and distillation apparatus proposed in this utility model;

[0019] Figure 2 This is a cross-sectional view of the regulating component of a chemical drug extraction and distillation apparatus according to the present invention.

[0020] Figure 3 This is a cross-sectional schematic diagram of the piston of a chemical drug extraction distillation apparatus proposed in this utility model;

[0021] Figure 4 This is an enlarged view of point A in a chemical extraction and distillation apparatus proposed in this utility model.

[0022] Legend:

[0023] 1. Electronic temperature-controlled heating mantle; 2. Single-mouth round-bottom beaker; 3. Flexible tubing; 4. Condenser; 5. Ground glass triangular beaker; 6. Iron stand; 7. Connector; 8. Sealing ring; 9. Sliding block; 10. Slide groove; 11. Spring A; 12. Distillation head; 13. Piston; 14. Slot; 15. Through hole; 16. Positioning block; 17. Spring B; 18. Limiting groove; 19. Limiting block. Detailed Implementation

[0024] 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.

[0025] Reference Figure 1 This utility model provides an embodiment of a chemical extraction distillation apparatus, comprising an electronically temperature-controlled heating mantle 1, on the top of which is a single-necked round-bottom beaker 2. A distillation head 12 is detachably connected to the top of the single-necked round-bottom beaker 2. The distillation head 12 has external threads on its outer side and internal threads on the top of the single-necked round-bottom beaker 2. The distillation head 12 is threadedly connected to the top of the single-necked round-bottom beaker 2. This threaded connection facilitates installation and disassembly, ensures a secure connection, and effectively prevents steam leakage. The top of the distillation head 12 is open... The distillation head 12 is equipped with a condenser tube 4 above it. One end of the condenser tube 4 is fixedly connected to a flexible tube 3, and the other end of the condenser tube 4 is fixedly connected to a ground glass triangular beaker 5. The end of the flexible tube 3 is fixedly connected to a connector 7. An iron stand 6 is provided below the condenser tube 4. A retaining ring is fixedly connected to the top of the iron stand 6. The surface of the condenser tube 4 is engaged with the surface of the retaining ring. The retaining ring structure is used to fix the condenser tube 4. The height is adjusted by the iron stand 6 to ensure that the condenser tube 4 is stable and does not shake. An adjustment component is provided between the connector 7 and the distillation head 12.

[0026] Reference Figure 2 , Figure 3The adjusting assembly includes a piston 13, which is fixedly connected to the bottom of the connector 7. A through hole 15 is provided at the bottom of the distillation head 12, and the piston 13 is located on the inner wall of the through hole 15. Both the through hole 15 and the piston 13 are conical. The piston 13 is fitted into the through hole 15. The conical structure allows adjustment of the size of the annular gap between the two by changing the insertion depth of the piston 13, thereby controlling the airflow. An air inlet is provided on the surface of the connector 7 to guide steam from the distillation head 12 into the hose 3. A groove 14 is provided on the inner wall of the distillation head 12. The groove 14 is annular and symmetrically spaced longitudinally on the inner wall of the distillation head 12. The groove 14 is used to engage with the positioning block 16 to position the connector 7 and prevent it from shaking or shifting. The piston 13... The piston 13 has a sliding connection to a positioning block 16. Under the action of spring B17, the positioning block 16 can move outward and engage with the slot 14. The outer wall of the positioning block 16 engages with the inner wall of the limiting groove 18. The inner wall of the piston 13 has a limiting groove 18. The top of the positioning block 16 is fixedly connected to a limiting block 19. The positioning block 16 is slidably connected to the inner wall of the limiting groove 18 through the limiting block 19. The limiting groove 18 and the limiting block 19 cooperate to limit the movement range of the positioning block 16 and ensure positioning reliability. The inner wall of the piston 13 is fixedly connected to a spring B17. The two ends of the spring B17 are fixedly connected to the side of the positioning block 16 respectively. The spring B17 provides elastic thrust so that the positioning block 16 always has a tendency to move outward and ensures stable engagement with the slot 14.

[0027] Reference Figure 4 The connector 7 is equipped with a sealing assembly, which includes a sealing ring 8. A slider 9 is fixedly connected to the inner side of the sealing ring 8. A groove 10 is formed on the outer wall of the connector 7. The sealing ring 8 is slidably connected to the inner wall of the groove 10 through the slider 9. The slider 9 and the groove 10 cooperate to allow the sealing ring 8 to slide up and down along the outer wall of the connector 7. A spring A11 is fixedly connected to the inner wall of the groove 10. The top end of the spring A11 is fixedly connected to the inner wall of the groove 10, and the bottom end of the spring is fixedly connected to the top of the slider 9. The spring A11 uses its elastic potential energy to keep the sealing ring 8 pressed against the top of the distillation head 12 to achieve a seal. The bottom of the sealing ring 8 is in sealing contact with the top of the distillation head 12. The sealing contact surface forms a reliable seal through compression to prevent vapor leakage.

[0028] Working principle: Both the piston 13 in the regulating assembly and the through hole 15 at the bottom of the distillation head 12 are conical. When the connector 7 is inserted into the distillation head 12, the piston 13 moves downward along the conical through hole 15. Due to the characteristics of the conical structure, the deeper the piston 13 is inserted, the smaller the annular gap between its outer wall and the inner wall of the through hole 15, thereby achieving precise adjustment of the airflow during the distillation process. For example, when it is necessary to slow down the distillation rate, the connector 7 can be inserted further to reduce the gap and decrease the airflow. Conversely, when it is necessary to speed up the rate, the connector 7 can be pulled out to increase the gap.

[0029] Under the elastic thrust of spring B17, the positioning block 16 on the surface of piston 13 always tends to move outward. When the positioning block 16 moves to align with the slot 14 on the inner wall of distillation head 12, the positioning block 16 is engaged in the slot 14, thereby positioning the connector 7 in the distillation head 12 and preventing it from shaking or shifting under the action of airflow, thus ensuring the stability of the adjusted airflow. At the same time, the sliding fit between the limiting block 19 and the limiting groove 18 limits the movement range of the positioning block 16, ensuring the reliability of the positioning process.

[0030] When connector 7 is inserted into distillation head 12, the bottom of sealing ring 8 contacts the top of distillation head 12 and is squeezed. Under the squeezing force, slider 9 slides upward along slide groove 10, compressing spring A11. The elastic potential energy generated by spring A11 keeps sealing ring 8 in a tight abutment with the top of distillation head 12, thus forming a reliable seal at the position where connector 7 passes through distillation head 12, preventing steam leakage during distillation and ensuring the safety and efficiency of distillation operation.

[0031] The electronically controlled heating mantle 1 heats the chemical mixture in the single-necked round-bottom beaker 2, causing the mixture to vaporize and generate steam. The steam enters the condenser 4 through the top opening of the distillation head 12, where it liquefies upon cooling to form a distillate. The liquefied distillate flows through the hose 3 into the ground glass triangular beaker 5 for collection. Throughout the process, the regulating component controls the steam flow rate, the sealing component ensures the system's airtightness, and the iron stand 6 secures the condenser 4 with retaining rings to ensure the stability of the device. For installation preparation, place the electronically controlled heating mantle 1 on a stable table, connect the power supply, and ensure it is working properly. Place the single-necked round-bottom beaker 2 on top of the electronically controlled heating mantle 1 and check that the beaker is placed stably. Connect the distillation head 12 to the top of the single-necked round-bottom beaker 2 using threads, ensuring a secure connection to prevent steam leakage.

[0032] Place the condenser tube 4 on the iron stand 6 and adjust the height of the iron stand 6 so that one end of the condenser tube 4 is aligned with the top opening of the distillation head 12. Use the retaining ring on the top of the iron stand 6 to fix the condenser tube 4, ensuring that the condenser tube 4 is stable and does not shake. Fix one end of the hose 3 to one end of the condenser tube 4 and fix the other end to the connector 7. Fix the ground glass triangular beaker 5 to the other end of the condenser tube 4, ensuring that the connection is tight.

[0033] Pour the chemical mixture to be extracted into a single-necked round-bottom beaker 2. Turn on the electronically controlled heating mantle 1, set a suitable heating temperature, and begin heating the mixture in the beaker. Observe the vaporization of the mixture. When the steam begins to enter the distillation head 12, slowly insert the connector 7 into the distillation head 12 until the piston 13 is fully inserted into the through hole 15. At this time, the steam passes through the gap between the piston 13 and the through hole 15, enters the hose 3 through the air inlet, and then flows into the condenser 4 and the ground glass triangular beaker 5. Observe the collection rate of the distillate in the ground glass triangular beaker 5. Adjust the depth of the connector 7 inserted into the distillation head 12 as needed. If it is necessary to speed up the distillation, the connector 7 can be pulled out appropriately to increase the gap between the piston 13 and the through hole 15. If it is necessary to slow down the speed, the connector 7 can be inserted further to narrow the gap. During the adjustment process, pay attention to the cooperation between the positioning block 16 and the slot 14 to ensure that the connector 7 is positioned stably.

[0034] After distillation, turn off the power to the electronically controlled heating mantle 1 and allow the apparatus to cool to room temperature. First, pull the connector 7 out of the distillation head 12. At this time, the positioning block 16 will automatically retract into the inner wall of the piston 13 under the action of the spring B17, disengaging from the slot 14. After removing the connector 7, check whether the piston 13, positioning block 16, spring B17, and other components are damaged or have impurities attached. If so, clean or replace them.

[0035] Disconnect the condenser 4 from the ground glass triangular beaker 5 and the hose 3. Collect and process the distillate in the ground glass triangular beaker 5. Disconnect the distillation head 12 from the single-necked round-bottom beaker 2. Clean the residue in the single-necked round-bottom beaker 2. Clean all parts with detergent and water to ensure the apparatus is clean for the next use.

[0036] 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 chemical extraction and distillation apparatus, comprising an electronically temperature-controlled heating mantle (1), characterized in that: A single-mouth round-bottom beaker (2) is placed on the top of the electronic temperature-controlled heating mantle (1). A distillation head (12) is detachably connected to the top of the single-mouth round-bottom beaker (2). The top of the distillation head (12) is open. A condenser (4) is provided above the distillation head (12). A hose (3) is fixedly connected to one end of the condenser (4). A ground glass triangular beaker (5) is fixedly connected to the other end of the condenser (4). A connector (7) is fixedly connected to the end of the hose (3). An adjustment component is provided between the connector (7) and the distillation head (12). The adjusting assembly includes a piston (13), which is fixedly connected to the bottom end of the connector (7). The bottom of the distillation head (12) is provided with a through hole (15), and the piston (13) is located on the inner wall of the through hole (15). The surface of the connector (7) is provided with an air inlet, and the inner wall of the distillation head (12) is provided with a slot (14). The surface of the piston (13) is slidably connected with a positioning block (16), and the outer wall of the positioning block (16) is engaged with the inner wall of the limiting groove (18).

2. The chemical extraction and distillation apparatus according to claim 1, characterized in that: The connector (7) is provided with a sealing assembly, which includes a sealing ring (8). A slider (9) is fixedly connected to the inner side of the sealing ring (8). A groove (10) is opened on the outer wall of the connector (7). The sealing ring (8) is slidably connected to the inner wall of the groove (10) through the slider (9). A spring A (11) is fixedly connected to the inner wall of the groove (10). The top end of the spring A (11) is fixedly connected to the inner wall of the groove (10). The bottom end of the spring is fixedly connected to the top of the slider (9). The bottom of the sealing ring (8) is in sealing contact with the top of the distillation head (12).

3. The chemical extraction and distillation apparatus according to claim 1, characterized in that: The piston (13) has a limiting groove (18) on its inner wall, and the top of the positioning block (16) is fixedly connected to a limiting block (19). The positioning block (16) is slidably connected to the inner wall of the limiting groove (18) through the limiting block (19).

4. The chemical extraction and distillation apparatus according to claim 1, characterized in that: Both the through hole (15) and the piston (13) are conical, and the piston (13) is configured to cooperate with the through hole (15).

5. A chemical extraction distillation apparatus according to claim 1, characterized in that: The slots (14) are annular and symmetrically spaced longitudinally on the inner wall of the distillation head (12).

6. The chemical extraction distillation apparatus according to claim 1, characterized in that: A spring B (17) is fixedly connected to the inner wall of the piston (13), and the two ends of the spring B (17) are fixedly connected to the side of the positioning block (16).

7. The chemical extraction distillation apparatus according to claim 1, characterized in that: A metal frame (6) is provided below the condenser tube (4), and a retaining ring is fixedly connected to the top of the metal frame (6). The surface of the condenser tube (4) is engaged with the surface of the retaining ring.

8. A chemical extraction and distillation apparatus according to claim 1, characterized in that: The distillation head (12) has an external thread on its outer side, and the single-mouth round-bottom beaker (2) has an internal thread on its top. The distillation head (12) is threadedly connected to the top of the single-mouth round-bottom beaker (2).

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