Energy-saving electric control soxhlet extractor

Abstract

The utility model belongs to the field of soxhlet extractor, specifically is a kind of energy -conserving electric control's soxhlet extractor, including extraction bottle, extraction pipe, condenser, electric control throttle valve, frequency conversion compressor and temperature controller, the extraction pipe is movably connected in the top of extraction bottle, the condenser is threadedly covered in the top of extraction pipe, the surface of extraction bottle is around and is connected with copper coil pipe, the electric control throttle valve is used in cooperation with copper coil pipe and condenser;By integrating the heating device of extraction bottle and the cooling device of condenser into the condensing end and the evaporating end of same heat pump, heat recycling is realized, energy consumption during extraction process can be greatly reduced, and through temperature detection feedback, the heating temperature of extraction bottle can be accurately controlled using an electric control system, making the entire extraction process more efficient, and also reducing the loss of extraction working medium, and the temperature controller presets the extraction temperature, accurately controls the extraction temperature and the condensation temperature, and is more intelligent and efficient.

Description

Technical Field

[0001] This utility model relates to the field of Soxhlet extractors, specifically an energy-saving and electrically controlled Soxhlet extractor. Background Technology

[0002] The Soxhlet extractor is a laboratory extraction device based on the principles of solvent reflux and siphon. It is mainly used for the efficient and continuous extraction of fat-soluble or water-poorly soluble target components from solid samples. Its core function is to achieve solvent reuse through the "evaporation-condensation-reflux-siphon" cycle, thereby improving extraction efficiency and purity. It also has advantages such as low solvent consumption, standardized operation, and good result repeatability. It is widely used in food testing, pharmaceutical research and development, environmental monitoring, and natural product extraction.

[0003] Existing Soxhlet extractors mainly consist of three parts: an extraction flask, an extraction tube, and a condenser. The top of the extraction flask is connected to the bottom of the extraction tube, and the top of the extraction tube is connected to the condenser. However, in practical use, existing Soxhlet extractors suffer from energy waste, requiring separate devices for heating the extraction flask and for supplying cooling water to the condenser. Both consume a large amount of electrical energy and cannot recover heat energy, nor can they precisely control the heating temperature of the extraction flask through electronic control. Therefore, to address the above problems, an energy-saving, electronically controlled Soxhlet extractor is proposed. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, the Soxhlet extractors in the prior art suffer from energy waste, requiring separate devices for heating the extraction flask and for supplying cooling water to the condenser. Both of these devices consume a large amount of electrical energy and cannot achieve heat recovery. Furthermore, they cannot accurately control the heating temperature of the extraction flask through electronic control. This invention proposes an energy-saving and electronically controlled Soxhlet extractor.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an energy-saving and electrically controlled Soxhlet extractor, including an extraction bottle, an extraction tube, a condenser, an electrically controlled throttling valve, a variable frequency compressor, and a temperature controller. The extraction tube is movably connected to the top of the extraction bottle, the condenser is threaded onto the top of the extraction tube, a copper coil is wound around the surface of the extraction bottle, the electrically controlled throttling valve is used in conjunction with the copper coil and the condenser, the variable frequency compressor is used in conjunction with the copper coil and the condenser, and the temperature controller is used in conjunction with the extraction bottle, the condenser, the electrically controlled throttling valve, and the variable frequency compressor. The extraction tube includes a tube body and a siphon tube. One end of the tube body is inserted into the inside of the extraction bottle, and the siphon tube is located on one side of the tube body. The two ends of the siphon tube are respectively connected to the tube body and the extraction bottle. The condenser includes a sleeve and a condenser tube. One end of the sleeve is threaded onto the other end of the tube body. The condenser tube is fixedly connected to a condenser tube. One end of the condenser tube passes through the sleeve and is connected to the extraction bottle. The two sides of the sleeve are respectively fixedly connected to a liquid inlet and a gas outlet. The liquid inlet is used in conjunction with an electronically controlled throttling valve, and the gas outlet is used in conjunction with a variable frequency compressor.

[0006] Preferably, the surface of the electronically controlled throttle valve is electrically connected to a first signal line, one end of which is electrically connected to a temperature controller.

[0007] Preferably, the two ends of the electronically controlled throttle valve are respectively fixedly connected to a first pipeline and a second pipeline. One end of the first pipeline is fixedly connected to the liquid outlet of the copper coil, and one end of the second pipeline is fixedly connected to the liquid inlet.

[0008] Preferably, a second signal line is electrically connected to one side of the variable frequency compressor, and one end of the second signal line is electrically connected to the temperature controller.

[0009] Preferably, the variable frequency compressor is fixedly connected to a third pipeline and a fourth pipeline at both ends, with one end of the third pipeline fixedly connected to the air outlet and one end of the fourth pipeline fixedly connected to the liquid inlet of the copper coil.

[0010] Preferably, the temperature controller is electrically connected to a first probe and a second probe on one side. The first probe is used in conjunction with the condenser, and the second probe is used in conjunction with the extraction bottle.

[0011] The advantages of this utility model are: This invention integrates the heating device of the extraction bottle and the cooling device of the condenser into the condenser and evaporator ends of the same heat pump, realizing heat recovery and utilization, which can greatly reduce the energy consumption of the extraction process. Through temperature detection feedback, the heating temperature of the extraction bottle can be precisely controlled by the electronic control system, making the entire extraction process more efficient and reducing the loss of the extraction medium. In addition, the temperature controller can preset the extraction temperature and precisely control the extraction temperature and condensation temperature, making it more intelligent and efficient. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0013] Figure 1 This is a schematic diagram of the energy-saving and electrically controlled Soxhlet extractor structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is the control logic flowchart of this utility model.

[0014] In the diagram: 1. Extraction bottle; 11. Copper coil; 2. Extraction tube; 21. Tube body; 22. Siphon tube; 3. Condenser; 31. Sleeve; 311. Liquid inlet; 312. Gas outlet; 32. Condenser tube; 4. Electrically controlled throttle valve; 41. First signal line; 42. First pipeline; 43. Second pipeline; 5. Variable frequency compressor; 51. Second signal line; 52. Third pipeline; 53. Fourth pipeline; 6. Temperature controller; 61. First probe; 62. Second probe. Detailed Implementation

[0015] 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.

[0016] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail. This application discloses an energy-saving, electrically controlled Soxhlet extractor. (Refer to...) Figure 1 , Figure 2 and Figure 3 An energy-saving, electrically controlled Soxhlet extractor includes an extraction flask 1, an extraction tube 2, a condenser 3, an electrically controlled throttling valve 4, a variable frequency compressor 5, and a temperature controller 6. The extraction tube 2 is movably connected to the top of the extraction flask 1. The condenser 3 is threaded onto the top of the extraction tube 2. A copper coil 11 is wound around the surface of the extraction flask 1. The electrically controlled throttling valve 4 works in conjunction with the copper coil 11 and the condenser 3. The variable frequency compressor 5 works in conjunction with the copper coil 11 and the condenser 3. The temperature controller 6 works in conjunction with the extraction flask 1, the condenser 3, the electrically controlled throttling valve 4, and the variable frequency compressor 5. The extraction flask 1 is a round-bottomed or other type of flask made of heat-resistant glass. The condenser tube 32 is serpentine or spherical in shape. The extraction tube 2 includes a tube body 21 and a siphon tube 22. One end of the tube body 21 is inserted into the inside of the extraction bottle 1, and the siphon tube 22 is located on one side of the tube body 21. The two ends of the siphon tube 22 are respectively connected to the tube body 21 and the extraction bottle 1. The condenser 3 includes a sleeve 31 and a condenser tube 32. One end of the sleeve 31 is threaded onto the other end of the tube body 21. The condenser tube 32 is fixedly connected to the sleeve 31. One end of the condenser tube 32 passes through the sleeve 31 and is connected to the extraction bottle 1. The two sides of the sleeve 31 are respectively fixedly connected to the liquid inlet 311 and the gas outlet 312. The liquid inlet 311 is used in conjunction with the electronically controlled throttle valve 4, and the gas outlet 312 is used in conjunction with the variable frequency compressor 5. The extraction solvent is placed in the extraction bottle 1, and the sample is wrapped in degreased filter paper and placed in the tube 21. The extraction and condensation temperatures are preset by the temperature controller 6, which, through the electronically controlled throttle valve 4 and the variable frequency compressor 5, enables extraction and condensation. During extraction, the copper coil 11 transfers heat to the extraction bottle 1, and the vaporized solvent rises into the tube 21 to soak the sample, thereby extracting the target components from the sample. Reference Figure 1 and Figure 2 The surface of the electrically controlled throttle valve 4 is electrically connected to a first signal line 41, one end of which is electrically connected to the temperature controller 6. The two ends of the electrically controlled throttle valve 4 are respectively fixedly connected to a first pipeline 42 and a second pipeline 43. One end of the first pipeline 42 is fixedly connected to the liquid outlet of the copper coil 11, and one end of the second pipeline 43 is fixedly connected to the liquid inlet 311. The electrically controlled throttle valve 4 and the temperature controller 6 are connected by the first signal line 41 so that the temperature controller 6 can control the electrically controlled throttle valve 4, thereby controlling the flow rate of the electrically controlled throttle valve 4 through the first pipeline 42 and the second pipeline 43.

[0017] Reference Figure 1 and Figure 2 A second signal line 51 is electrically connected to one side of the variable frequency compressor 5, and one end of the second signal line 51 is electrically connected to the temperature controller 6. A third pipeline 52 and a fourth pipeline 53 are fixedly connected to both ends of the variable frequency compressor 5, respectively. One end of the third pipeline 52 is fixedly connected to the air outlet 312, and one end of the fourth pipeline 53 is fixedly connected to the liquid inlet of the copper coil 11. The variable frequency compressor 5 and the temperature controller 6 are connected by the second signal line 51, so that the temperature controller 6 can control the variable frequency compressor 5. The variable frequency compressor 5, the sleeve 31, the electronically controlled throttle valve 4 and the copper coil 11 form a closed loop through the third pipeline 52 and the fourth pipeline 53, which facilitates the control of the extraction temperature and condensation temperature by adjusting the power of the variable frequency compressor 5 and the flow rate of the electronically controlled throttle valve 4.

[0018] Reference Figure 1 and Figure 2The temperature controller 6 is electrically connected to a first probe 61 and a second probe 62 on one side. The first probe 61 is used in conjunction with the condenser 3, and the second probe 62 is used in conjunction with the extraction bottle 1. By setting the first probe 61 and the second probe 62, the temperature controller 6 can easily monitor the temperature of the extraction bottle 1 and the condenser 3, so as to control the extraction temperature and condensation temperature as needed.

[0019] Working principle: The extraction solvent is placed in the extraction bottle 1, and the sample is wrapped with degreased filter paper and placed in the tube 21. The extraction temperature and condensation temperature are preset by the temperature controller 6 as needed. The temperature controller 6 realizes the extraction and condensation work through the electronically controlled throttle valve 4 and the variable frequency compressor 5. During the extraction process, the copper coil 11 transfers heat to the extraction bottle 1. The solvent is heated and boils. The vapor rises to the condenser tube 32 and condenses into liquid, which drips into the tube 21 to wet the sample and dissolve the target substance. When the solvent level in the tube 21 reaches the top of the siphon tube 22, a siphon phenomenon occurs, and the solvent containing the extract flows back to the extraction bottle 1. The solvent is heated and evaporated again in the flask. The "condensation-wetting-siphon" process is repeated. Generally, dozens of extraction cycles are required until the target substance is completely dissolved. Operating procedures: S1. Instrument inspection: Check whether the glass component interfaces are tight, whether the electronic instruments are working properly, and whether there is a refrigerant leak. S2. Preparation of extraction medium: Select a suitable organic solvent, such as diethyl ether, petroleum ether, ethanol, etc., depending on the polarity of the target substance, and ensure that the purity meets the experimental requirements. S3. Sample pretreatment: Grind the solid sample evenly. The smaller the particles, the higher the extraction efficiency. Wrap the sample in filter paper to form a cylinder to prevent powder leakage and place it in extraction tube 2. S4. Add solvent: Add solvent to extraction bottle 1, the volume of which is about one-half to two-thirds of the volume of extraction bottle 1. Avoid overfilling, which may cause the solvent to rush into tube 21 when boiling. Slowly inject a small amount of solvent into extraction tube 2 through the top of condenser tube 32 to wet the sample filter paper pack. S5. Parameter setting: Set the required extraction temperature through temperature controller 6; S6. Start extraction: Turn on the variable frequency compressor 5 and the electronically controlled throttle valve 4 via the temperature controller 6; S7. Extraction process: The solvent is heated and boils, and the vapor rises to the condenser 32, where it condenses into liquid and drips into the tube 21, wetting the sample and dissolving the target substance. When the solvent level in the tube 21 reaches the top of the siphon tube 22, a siphon phenomenon occurs, and the solvent containing the extract flows back to the extraction bottle 1. The solvent is heated and evaporated again in the flask, and the "condensation-wetting-siphon" process is repeated. Generally, dozens of extraction cycles are required until the target substance is completely dissolved. S8. Stop extraction: First, turn off the variable frequency compressor 5 and the electronic throttle valve 4 through the temperature controller 6. After no steam is discharged from the condenser 32, disassemble the instrument. S9. Solvent Recovery and Sample Determination: The solvent in extraction bottle 1 is recovered by distillation. The remaining residue is the extract. The extract is quantitatively analyzed according to the experimental purpose.

[0020] 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 illustrative of the principles of this 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.

Claims

1. An energy-saving, electrically controlled Soxhlet extractor, characterized in that: The device includes an extraction bottle (1), an extraction tube (2), a condenser (3), an electronically controlled throttle valve (4), a variable frequency compressor (5), and a temperature controller (6). The extraction tube (2) is movably connected to the top of the extraction bottle (1). The condenser (3) is threaded onto the top of the extraction tube (2). A copper coil (11) is wound around the surface of the extraction bottle (1). The electronically controlled throttle valve (4) is used in conjunction with the copper coil (11) and the condenser (3). The variable frequency compressor (5) is used in conjunction with the copper coil (11) and the condenser (3). The temperature controller (6) is used in conjunction with the extraction bottle (1), the condenser (3), the electronically controlled throttle valve (4), and the variable frequency compressor (5). The extraction tube (2) includes a tube body (21) and a siphon tube (22). One end of the tube body (21) is inserted into the inside of the extraction bottle (1). The siphon tube (22) is located on one side of the tube body (21). The two ends of the siphon tube (22) are connected to the tube body (21) and the extraction bottle (1) respectively. The condenser (3) includes a sleeve (31) and a condenser tube (32). One end of the sleeve (31) is threaded onto the other end of the tube body (21). The condenser tube (32) is fixedly connected to the condenser tube (32). One end of the condenser tube (32) passes through the sleeve (31) and is connected to the extraction bottle (1). The two sides of the sleeve (31) are respectively fixedly connected to a liquid inlet (311) and a gas outlet (312). The liquid inlet (311) is used in conjunction with an electronically controlled throttle valve (4), and the gas outlet (312) is used in conjunction with a variable frequency compressor (5).

2. The energy-saving and electrically controlled Soxhlet extractor according to claim 1, characterized in that: The surface of the electronically controlled throttle valve (4) is electrically connected to a first signal line (41), one end of which is electrically connected to a temperature controller (6).

3. The energy-saving and electrically controlled Soxhlet extractor according to claim 1, characterized in that: The two ends of the electrically controlled throttle valve (4) are respectively fixedly connected to a first pipeline (42) and a second pipeline (43). One end of the first pipeline (42) is fixedly connected to the liquid outlet of the copper coil (11), and one end of the second pipeline (43) is fixedly connected to the liquid inlet (311).

4. The energy-saving and electrically controlled Soxhlet extractor according to claim 1, characterized in that: The variable frequency compressor (5) is electrically connected to a second signal line (51) on one side, and one end of the second signal line (51) is electrically connected to the temperature controller (6).

5. The energy-saving and electrically controlled Soxhlet extractor according to claim 1, characterized in that: The variable frequency compressor (5) is fixedly connected to a third pipeline (52) and a fourth pipeline (53) at both ends. One end of the third pipeline (52) is fixedly connected to the air outlet (312), and one end of the fourth pipeline (53) is fixedly connected to the liquid inlet of the copper coil (11).

6. The energy-saving and electrically controlled Soxhlet extractor according to claim 1, characterized in that: The temperature controller (6) is electrically connected to a first probe (61) and a second probe (62) on one side. The first probe (61) is used in conjunction with the condenser (3), and the second probe (62) is used in conjunction with the extraction bottle (1).

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