A multifunctional synthetic separation device

Abstract

A multifunctional synthesis and separation device, belonging to the technical field of synthesis and evaporation devices, includes a condensation device, a heating device, and a drive and control module. The condensation device includes a condenser tube, the lower end of which is connected to a connecting bottle. A vent valve is installed at the left end of the connecting bottle, and the lower end of the connecting bottle is connected to a first connecting pipe. A first three-way valve is connected in series on the first connecting pipe, and a collection structure is connected to the lower end of the first connecting pipe. The right end of the connecting bottle is connected to a second connecting pipe, and a second three-way valve is installed at the connection between the third connecting pipe and the second connecting pipe. The other end of the third connecting pipe is connected to a material handling structure. The material handling structure includes a sealing drive sleeve, a reaction bottle detachably installed at the end of the sealing drive sleeve, and a stirrer extending into the reaction bottle. The sealing drive sleeve is connected to the third connecting pipe, realizing the directional reflux and collection of condensate, and improving the utilization rate of the solvent.

Description

Technical Field

[0001] This utility model relates to the field of synthetic evaporation apparatus technology, and in particular to a multifunctional synthetic separation apparatus. Background Technology

[0002] Rotary evaporators primarily operate based on vacuum distillation technology. The principle involves placing the evaporation flask in a water bath for constant temperature heating. By reducing the internal pressure of the rotary evaporator, the boiling point of the liquid being evaporated is lowered. Electronic control keeps the flask rotating at a constant speed to increase the evaporation area and thus accelerate the evaporation process. Rotary evaporation experiments are used in various fields such as chemistry, food, medicine, agriculture, and biomedicine. These experiments often involve the evaporation of viscous liquids. High-viscosity liquids produce bubbles during evaporation, causing the liquid to be evaporated to overflow the reaction flask. Furthermore, high-viscosity liquids have poor flowability, tend to adhere to the walls, and result in low distillation efficiency.

[0003] Common rotary evaporators are basically only used as distillation equipment for simple substance separation, with limited functionality. During rotary evaporation, the solvent vapor is cooled by a high-efficiency glass condenser and then collected in a collection bottle for recovery. Due to functional limitations, it is difficult to easily and quickly return the solvent to the distillation system, resulting in low solvent utilization. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to provide a multifunctional synthesis and separation device that can realize the synergistic operation of synthesis and separation and improve the solvent utilization rate.

[0005] A multifunctional synthesis and separation device includes a condensation device, a heating device, and a drive and control module. The condensation device comprises a condenser tube, the lower end of which is connected to a connecting bottle. A vent valve is provided at the left end of the connecting bottle. The lower end of the connecting bottle is connected to a first connecting pipe, and a first three-way valve is connected in series on the first connecting pipe. A collection structure is connected to the lower end of the first connecting pipe. The right end of the connecting bottle is connected to a second connecting pipe, and the lower end of the second connecting pipe is connected to a third connecting pipe. A second three-way valve is installed at the connection between the third connecting pipe and the second connecting pipe. One end of the third connecting pipe is connected to the first three-way valve, and the other end of the third connecting pipe is connected to a material processing structure. The material processing structure includes a sealing drive sleeve, a reaction flask detachably installed at the end of the sealing drive sleeve, and a stirrer extending into the reaction flask. The sealing drive sleeve is connected to the third connecting pipe.

[0006] In this structure, the stirrer is an anchor stirrer, which includes a horizontal rotating shaft and a stirring paddle. The distance between the blade of the stirring paddle and the bottom of the reaction flask is 0-5 mm.

[0007] In this structure, the surface of the impeller blades is provided with a polytetrafluoroethylene anti-stick coating.

[0008] In this structure, the horizontal rotation axis of the stirrer and the stirring paddle are connected by a hinge, and the hinge has a built-in spring locking mechanism, which allows the stirring paddle to be folded to a state parallel to the rotation axis.

[0009] In this structure, the condensing device includes a condenser tube, a refrigerator, a power pump, and a fixed bracket. The condenser tube is fixed on the fixed bracket, and the upper end of the condenser tube is connected to a negative pressure device. The negative pressure device includes a pressure sensor, a negative pressure pump, a negative pressure pipe, and a pressure gauge.

[0010] In this structure, the condenser tube is a serpentine condenser tube.

[0011] In this structure, the collection structure includes a collection bottle, and the lower end of the collection bottle is designed with a drain valve.

[0012] In this structure, the sealing drive sleeve and the reaction flask are fixed with a support frame.

[0013] In this structure, the heating device is a water bath, an oil bath, or an electric heating mantle. The reaction flask is placed inside the heating device, and the heating device is covered with an arc-shaped sealing plate made of high-temperature resistant silicone material.

[0014] The beneficial effects achieved by this application are as follows:

[0015] 1. The stirrer is close to the bottom of the reaction flask, which can promptly remove the material adhering to the wall of the reaction flask, thus improving the heat transfer effect;

[0016] 2. The agitator has a strong stirring effect, which is conducive to the thorough and uniform mixing of materials. It can also avoid the overflow of materials due to high viscosity and excessive air bubbles when handling viscous materials, ensuring safety and meeting standards, and improving the efficiency of synthesis and separation.

[0017] 3. The flexible switching of the solvent path and the synergistic effect of dynamic stirring allow the condensed externally evaporated solvent to either enter the collection bottle or be returned to the reaction bottle as needed, achieving directional reflux and collection of the condensate and improving the utilization rate of the solvent by >30%.

[0018] 4. It integrates synthesis and separation, occupies a small area, has a high equipment utilization rate, and is simple in structure, easy to operate, safe and environmentally friendly, which is conducive to industrial application. Attached Figure Description

[0019] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a simplified structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the stirrer in this utility model.

[0023] Figure label:

[0024] 1. Condensation device; 2. Connecting bottle; 3. Collection bottle; 4. Sealing drive sleeve; 5. Reaction flask; 6. Stirrer; 7. First connecting pipe; 8. First three-way valve; 9. Second connecting pipe; 10. Second three-way valve; 11. Third connecting pipe. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only possible technical implementations of the present invention and not all possible implementations. Those skilled in the art can obtain other embodiments in conjunction with the embodiments of the present invention without creative effort, and these embodiments are also within the protection scope of the present invention.

[0026] See Figure 1 As shown in 2 or 3:

[0027] This utility model discloses a multifunctional synthesis and separation device, comprising a condensation device and a heating device. The condensation device includes a condenser tube 1, the lower end of which is connected to a connecting bottle 2. A vent valve is provided at the left end of the connecting bottle 2. The lower end of the connecting bottle 2 is connected to a first connecting pipe 7, and a first three-way valve 8 is connected in series on the first connecting pipe 7. A collection structure is connected to the lower end of the first connecting pipe 7. The right end of the connecting bottle 2 is connected to a second connecting pipe 9, and the lower end of the second connecting pipe 9 is connected to a third connecting pipe 11. A second three-way valve 10 is installed at the connection between the third connecting pipe 11 and the second connecting pipe 9. One end of the third connecting pipe 11 is connected to the first three-way valve 8, and the other end of the third connecting pipe 11 is connected to a material processing structure. The material processing structure includes a sealing drive sleeve 4, a reaction bottle 5 detachably installed at the end of the sealing drive sleeve, and a stirrer 6 extending into the reaction bottle 5. The sealing drive sleeve 4 is connected to the third connecting pipe 11. The reaction bottle 5 and the stirrer 6 can rotate relative to each other and can be flexibly disassembled.

[0028] The first three-way valve 8 and the second three-way valve 10 can be used to switch the flow of condensate to the collection bottle or reaction bottle, realizing the directional reflux and collection of condensate and improving the utilization rate of solvent. The stirrer has a strong stirring effect, which is conducive to the thorough and uniform mixing of materials, and can avoid the overflow of materials due to high viscosity and excessive bubbles, thus improving the synthesis and separation efficiency.

[0029] In this embodiment, the stirrer 6 is an anchor-type stirrer, comprising a horizontal rotating shaft and stirring paddles. The distance between the paddle blades and the bottom of the reaction flask is 0-5 mm. The stirrer consists of a horizontal rotating shaft and one or more pairs of anchor-type stirring paddles. The blades are elongated, and the length of the stirring paddles is customized according to the size of the reaction flask. The stirring paddle blades are close to the bottom of the reaction flask, which can promptly remove material adhering to the flask wall and improve heat transfer efficiency.

[0030] In this embodiment, the surface of the impeller blades is provided with a polytetrafluoroethylene anti-stick coating.

[0031] In this embodiment, the horizontal rotation shaft of the stirrer 6 and the stirring paddle are connected by a hinge. The hinge has a built-in spring locking mechanism, which allows the stirring paddle to be folded to a state parallel to the rotation shaft.

[0032] In this embodiment, the condensing device 1 includes a condenser pipe, a refrigerator, a power pump, and a fixed bracket. The condenser pipe is fixed on the fixed bracket, and the upper end of the condenser pipe is connected to a negative pressure device. The negative pressure device includes a pressure sensor, a negative pressure pump, a negative pressure pipe, and a pressure gauge.

[0033] In this embodiment, the condenser tube is a serpentine condenser tube.

[0034] In this embodiment, the collection structure includes a collection bottle 3, and the lower end of the collection bottle 3 is designed with a liquid discharge valve.

[0035] In this embodiment, a support frame is fixed under the sealing drive sleeve 4 and the reaction bottle 5.

[0036] In this embodiment, the heating device is a water bath, oil bath, or electric heating mantle. The reaction flask 5 is placed inside the heating device, which is covered with an arc-shaped sealing plate made of high-temperature resistant silicone material. This prevents heat loss and improves efficiency.

[0037] In this embodiment, the device incorporates a commercially available drive and control module, including a drive motor, an automatic lifting device, a control panel, and matching wiring. This drive and control module utilizes existing PLC control to adjust the stirrer speed and the reaction flask height.

[0038] When using this utility model, the material is loaded into the reaction bottle 5. After installation, the power is turned on. The automatic lifting function is used on the control panel to adjust to a suitable position. The vent valve at the left end of the connecting bottle 2 is closed, the first three-way valve 8 is closed, and the second three-way valve 10 is opened to connect the connecting bottle 2 with the reaction bottle 5. The heating device is turned on and the temperature is set. The rotation function is turned on and the appropriate rotation speed is adjusted through the frequency converter. The condensing device is turned on. After the temperature rises to the set temperature, the negative pressure device is turned on for external evaporation. Under the action of negative pressure, the externally evaporated solvent enters the condenser tube for condensation through the third connecting pipe 11, the second three-way valve 10, the second connecting pipe 9, and the connecting bottle 2.

[0039] Open the three-way valve 8 as needed. If the externally distilled solvent needs to be sourced externally, open the first three-way valve 8 to allow the externally distilled solvent to enter the collection bottle 3. If the externally distilled solvent needs to be returned to the reaction bottle 5, open the three-way valve 8 to allow the externally distilled solvent to enter the reaction bottle 2 through the third connecting pipe 11 and the second three-way valve 10. After the work of this utility model is completed, slowly open the vent valve at the left end of the connecting bottle 2. After the pressure is restored to atmospheric pressure, close the negative pressure device. After adjusting to a suitable position through the automatic lifting device, remove the reaction bottle to recover the material and open the discharge valve at the bottom of the collection bottle 2 to recover the solvent.

[0040] The first three-way valve and the second three-way valve are configured to have a first working state that allows the condensate to flow to the collection bottle 3, and a second working state that allows the condensate to flow back to the reaction bottle 5.

[0041] The working process of this utility model is as follows: First, add the material to the reaction bottle, start the heating device, set the oil bath temperature to 80°C, then turn on the stirrer to break up the bubbles, rotate the reaction bottle synchronously, switch the configuration of the first three-way valve and the second three-way valve to have a first working state to allow the condensate to flow to the collection bottle, and a second working state to allow the condensate to flow back to the reaction bottle. After the reaction is completed, open the first three-way valve to the collection mode to recover the unreacted solvent.

[0042] The above are merely some embodiments of this application and are not intended to limit the application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments shall still fall within the scope of protection of the technical solution of this application.

Claims

1. A multifunctional synthetic separation apparatus comprising a condensing apparatus and a heating apparatus, characterized in that: The condensation device includes a condenser tube (1), a connecting bottle (2) connected to the lower end of the condenser tube, a venting valve provided at the left end of the connecting bottle (2), a first connecting pipe (7) connected to the lower end of the connecting bottle (2), a first three-way valve (8) connected in series on the first connecting pipe (7), a collection structure connected to the lower end of the first connecting pipe (7), a second connecting pipe (9) connected to the right end of the connecting bottle (2), a third connecting pipe (11) connected to the lower end of the second connecting pipe (9), a second three-way valve (10) installed at the connection between the third connecting pipe (11) and the second connecting pipe (9), one end of the third connecting pipe (11) connected to the first three-way valve (8), and the other end of the third connecting pipe (11) connected to a material handling structure. The material handling structure includes a sealing drive sleeve (4), a reaction bottle (5) detachably installed at the end of the sealing drive sleeve, and a stirrer (6) extending into the reaction bottle (5). The sealing drive sleeve (4) is connected to the third connecting pipe (11).

2. The multi-functional synthetic separation device according to claim 1, wherein: The stirrer (6) is an anchor stirrer, which includes a horizontal rotating shaft and a stirring paddle. The distance between the blade of the stirring paddle and the bottom of the reaction flask is 0-5 mm.

3. The multifunctional synthetic separation device according to claim 1 or 2, characterized in that: The impeller blades are coated with a polytetrafluoroethylene (PTFE) anti-stick coating.

4. The multi-functional synthetic separation device according to claim 3, wherein: The horizontal rotation axis of the stirrer (6) and the stirring paddle are connected by a hinge. The hinge has a built-in spring locking mechanism, which allows the stirring paddle to be folded to a state parallel to the rotation axis.

5. The multi-functional synthetic separation device according to claim 4, wherein: The condensing device (1) includes a condenser tube, a refrigerator, a power pump and a fixed bracket. The condenser tube is fixed on the fixed bracket and the upper end of the condenser tube is connected to a negative pressure device. The negative pressure device includes a pressure sensor, a negative pressure pump, a negative pressure pipe and a pressure gauge.

6. The multi-functional synthetic separation device of claim 5, wherein: The condenser tube is a serpentine condenser tube.

7. The multi-functional synthetic separation device of claim 6, wherein: The collection structure includes a collection bottle (3), and the lower end of the collection bottle (3) is designed with a liquid discharge valve.

8. The multi-functional synthetic separation device of claim 7, wherein: The sealing drive sleeve (4) and the reaction flask (5) are fixed with a support frame.

9. The multi-functional synthetic separation device of claim 8, wherein: The heating device is a water bath, an oil bath, or an electric heating mantle. The reaction flask (5) is placed inside the heating device, and the heating device is covered with an arc-shaped sealing plate made of high-temperature resistant silicone material.

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