Anti-bumping reflux extraction device

Abstract

The anti-explosion boiling reflux extraction device provided by the utility model comprises a heating component, an extraction component, a condensation component and a condensate supply device, the extraction component is connected with the heating component, the condensation component is connected with the extraction component, the condensate supply device is connected with the condensation component, and the reflux extraction device further comprises a condensation cover, the condensation cover is arranged at the joint part of the condensation part and the extraction part and is sleeved on the extraction part, steam in the extraction part is condensed to form small liquid drops, and the small liquid drops flow back to a solution in the extraction part along the inner wall of the extraction part, so that the problem of explosion boiling is effectively solved. Meanwhile, according to the anti-explosion boiling reflux extraction device disclosed by the utility model, the accurate control on heating reflux is further realized by adjusting the flow rate of condensate of each component and the start-stop and heating power of the heating component.

Description

Technical Field

[0001] The utility model relates to the field of medicine extraction, in particular to a reflux extraction device for preventing bumping Background Art

[0002] The reflux extraction method is a commonly used method for medicine extraction, which refers to using solvents such as water / ethanol to extract the components of materials, heating and distilling the extraction solution, and the volatilized solvent is condensed after distillation and then flows back to the extraction device to extract the materials repeatedly until the requirements are met

[0003] The reflux extraction device usually consists of a heating component, an extraction component, a condensation component, and a condensate supply device. During use, the material and the extraction solvent are placed in the extraction component. The extraction component is connected to the heating component, the condensation component is connected to the extraction component, and the condensate supply device is connected to the condensation component. The extraction component is heated. After the extraction solvent is heated and boils, it evaporates into the condensation component. The distillate condenses in the condensation component and flows downward under the action of gravity and returns to the extraction component again

[0004] The solution in the extraction component will boil when heated. Due to different varieties of extracted materials, different heating temperatures, and different extraction solvents, the boiling state may be intense. Bubbles rise along the inner wall of the extraction component, the amount of steam increases, and it directly rushes into the condensation component and quickly turns into liquid inside the condensation component. When the liquid flows downward, due to intense boiling and a large amount of steam production, the downward flowing liquid cannot completely flow downward, resulting in blockage inside the condensation component and directly rushing out of the top of the condensation component and flowing along the outer walls of the condensation component and the extraction component into the heating component, which has certain potential safety hazards. On the one hand, due to a large amount of distillation, part of it may overflow from the reflux extraction device, which will affect the actual amount of extraction solvent. On the other hand, with a large amount of steam, the rising bubbles will attach the fine materials to the inner wall of the condensation component, affecting the cooling effect, and it is not easy to clean after drying, which will cause pollution to subsequent experiments or medicine extraction Content of the Utility Model

[0005] In view of the above problems, the utility model provides a reflux extraction device for preventing bumping, which is used to solve the technical problem that in the prior art, reflux extraction is blocked due to bumping, or fine materials adhere to the inner wall of the condenser tube, affecting the cooling effect and being not easy to clean

[0006] An anti-bumping reflux extraction device, comprising a heating component, an extraction component, a condensation component, and a condensate supply device. The extraction component is connected to the heating component, the condensation component is connected to the extraction component, and the condensate supply device is connected to the condensation component. It is characterized in that the reflux extraction device further comprises a condensation cover, which is installed on the joint of the condensation component and the extraction component and sleeved on the extraction component. The condensation cover is configured to condense the steam in the extraction component into small droplets and flow back along the inner wall of the extraction component into the solution in the extraction component.

[0007] In a preferred embodiment of the present invention, the condensation cover comprises a cover body, the cover body covers at least a part of the extraction component, a chamber is provided in the cover body, a liquid inlet pipe is provided at the top of the cover body, and a liquid outlet pipe is provided at the bottom of the cover body. The condensate enters the chamber of the cover body through the liquid inlet pipe and flows out through the liquid outlet pipe.

[0008] In a preferred embodiment of the present utility model, the top of the cover body is not lower than the necking part of the condensation cover, and the bottom of the cover body is not lower than the liquid level height of the solution in the extraction component.

[0009] In a preferred embodiment of the present utility model, the joint of the extraction component and the condensation component is a necking part, and the cross section of the necking part gradually increases in the direction away from the condensation component.

[0010] In a preferred embodiment of the present utility model, the reflux extraction device is further provided with a pressure sensing device, which is placed in the necking part of the extraction component to monitor the steam pressure in the solvent-free extraction area of the extraction component in real time.

[0011] In a preferred embodiment of the present utility model, the condensate supply device is provided with a flow rate controller, which is communicatively connected to the pressure sensing device, and automatically controls the start and stop of the condensate supply of the condensate supply device and the flow rate of the condensate in the condensation cover and / or the condensation component according to the pressure value detected by the pressure sensing device.

[0012] In a preferred embodiment of the present utility model, the condensate supply device is further provided with a refrigerator, and the condensate that exchanges heat with the steam of the extraction component in the condensation component and the condensation cover is transported to the refrigerator through a pipeline for refrigeration to realize the recycling of the condensate.

[0013] In a preferred embodiment of the present utility model, the reflux extraction device is provided with a cooling and weighing device, which is connected to the condensation component, cools the water vapor flowing out of the condensation component to form a liquid, collects the liquid and weighs it.

[0014] In a preferred embodiment of the present utility model, the cooling and weighing device includes a condenser, a collection tank, and an on-line weigher. The condenser is hermetically sleeved on the distal end of the condensation component to cool the steam introduced from the condensation component. The collection tank is hermetically connected to the distal end of the condenser, so that the liquid automatically flows into the collection tank under the action of gravity for storage. The on-line weigher is connected to the collection tank to read the liquid weight in the collection tank in real time, and automatically calculate the solution amount in the extraction component according to the material feeding amount, the solvent feeding amount, and the liquid weight in the collection tank.

[0015] In a preferred embodiment of the present utility model, the heating component of the reflux extraction device controls the start-stop and heating power of the heating component according to the liquid weight collected by the cooling and weighing device.

[0016] In a preferred embodiment of the present utility model, the heating component is selected from one or more of an electric heating device, a steam heating device, a jacket heating device, or a radiation heating device.

[0017] In a preferred embodiment of the present utility model, the condensation component is selected from a common straight condenser, a spherical condenser, or a serpentine condenser.

[0018] In a preferred embodiment of the present utility model, the extraction component is selected from an extraction tank or an extraction bottle.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] 1. The present utility model sleeved the condensation cover on the extraction component, so that the steam in the solvent-free extraction area of the extraction component is condensed into small water droplets and adheres to the inner wall of the extraction component under the action of the Coanda effect, and flows back to the extraction solvent area of the extraction component along the inner wall of the extraction component, thereby ensuring the stable steam pressure in the solvent-free extraction area of the extraction component, effectively solving the technical problem that the solution is prone to boiling during the reflux extraction process, and significantly improving the sufficiency and safety of extraction.

[0021] 2. The present utility model installs a pressure sensing device in the necking part of the extraction component to detect the steam pressure in the solvent-free extraction area of the extraction component. The condensate supply device can automatically control the start-stop of the condensate supply of the condensate supply device and the flow rate of the condensate in the condensation cover or / and the condensation component 3 according to the steam pressure in the solvent-free extraction area, so as to achieve better cooling effect on the steam in the solvent-free extraction area of the extraction component.

[0022] 3. The present utility model also provides a refrigerator in the condensate supply device, and the condensate that exchanges heat with the steam of the extraction component in the condensation component and the condensation cover is transported to the refrigerator through a pipeline for refrigeration to realize the recycling of the condensate.

[0023] 4. The utility model installs a cooling and weighing device at the far end of the condensation component, which is used to cool the water vapor flowing out of the condensation component, collect the liquid and weigh it. The heating component controls the start-stop and heating power of the heating component according to the weight of the liquid collected by the cooling and weighing device to achieve precise extraction of the reflux extraction device, and can also effectively reduce energy consumption. Description of the Drawings

[0024] Figure 1 It shows a schematic structural view of the reflux extraction device of the utility model

[0025] Figure 2 It shows a sectional view of the reflux extraction device of the utility model

[0026] Figure 3 It shows a schematic structural view of the condensation cover of the utility model, where 3a is the front view of the condensation cover, 3b is the top view of the condensation cover, and 3c is the sectional view of the condensation cover

[0027] Figure 4 It shows a schematic structural view of the reflux extraction device containing a pressure sensing device of the utility model

[0028] Figure 5 It shows a schematic structural view of the reflux extraction device containing a cooling and weighing device of the utility model

[0029] Illustration:

[0030] 1. Heating component

[0031] 2. Extraction component, constriction part 21, solvent-free extraction area 22

[0032] 3. Condensation component, near end 31, far end 32, water inlet pipe 33, water outlet pipe 34, steam flowmeter 35

[0033] 4. Condensate supply device, flow rate controller 41, water outlet 42, three-way valve 43, flow control valve 44, refrigerator 45, water inlet 46

[0034] 5. Condensation cover, cover body 51, chamber 52, liquid inlet pipe 53, liquid outlet pipe 54

[0035] 6. Pressure sensing device

[0036] 7. Cooling and weighing device, condenser 71, collection tank 72, on-line weighing device 73 Detailed implementation manners

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the utility model.

[0038] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the utility model in a schematic manner. Therefore, only the components related to the utility model are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The form, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the layout form of its components may also be more complex. In the following description, a large number of details are explored to provide a more thorough explanation of the embodiments of the utility model. However, it is obvious to those skilled in the art that the embodiments of the utility model can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the utility model difficult to understand.

[0039] Embodiment 1

[0040] Please refer to Figures 1-3 , the utility model provides an anti-bumping reflux extraction device, which includes a heating component 1, an extraction component 2, a condensation component 3, and a condensate supply device 4. The extraction component 2 is connected to the heating component 1, the condensation component 3 is connected to the extraction component 2, and the condensate supply device 4 is connected to the condensation component 3.

[0041] Among them, the reflux extraction device further includes a condensation cover 5. The condensation cover 5 is installed at the joint of the condensation component 3 and the extraction component 2 and sleeved on the extraction component 2. The condensation cover 5 is configured to condense the steam in the extraction component 2 into small droplets and flow back along the inner wall of the extraction component 2 into the solution in the extraction solvent area of the extraction component 2.

[0042] Among them, the condensation cover 5 includes a cover body 51. The cover body 51 covers at least a part of the extraction component 2. A chamber 52 is provided in the cover body 5. An inlet pipe 53 is provided at the top of the cover body 51, and an outlet pipe 54 is provided at the bottom of the cover body 51. The condensate enters the chamber 52 of the cover body 51 through the inlet pipe 53 and flows out through the outlet pipe 54.

[0043] During use, the material and extraction solvent are placed in the extraction component 2. The condensation hood 5 is installed at the junction of the condensation component 3 and the extraction component 2, and is sleeved on the extraction component 2 to cover at least a portion of the extraction component 2. The proximal end 31 of the condensation component 3 is connected to the extraction component 2, and the water outlet 42 of the condensate supply device 4 is connected to the water inlet pipe 33 of the condensation component. The heating component 1 is started to heat the extraction component 2. After the extraction solvent is heated and boils, the steam enters the condensation component 3. When the steam encounters cold in the condensation component 3, it condenses to form liquid. Under the action of gravity, it flows downward and returns to the extraction component 2, thereby achieving heating reflux. During the reflux extraction process, steam or bubbles will continue to accumulate in the extraction solvent-free area of the extraction component 2. The condensation hood 5 uses the condensate to condense the steam in the extraction component 2 to form small droplets. Under the action of the Coanda effect, they adhere to the inner wall of the extraction component 2 and flow back along the inner wall of the extraction component 2 to the extraction solvent area of the extraction component 2. The explosion-proof extraction device described in this embodiment can replace the heat of the steam in the non-extraction solvent area of the extraction component 2 with the flowing condensate because the condensation hood 5 can form small water droplets and reflux along the inner wall of the extraction component 2 to the extraction solvent area of the extraction component 2 even if the steam is heated too quickly and there is no time to cool down. This will prevent the interior of the condensation component 3 from being blocked due to explosion, thereby ensuring that the steam pressure in the non-extraction solvent area of the extraction component 2 is stable, effectively solving the technical problem of the solution being prone to explosion during the heating and reflux process, and thus significantly improving the adequacy and safety of the extraction.

[0044] The bottom of the cover body 51 of the condensation cover 5 in this embodiment is not lower than the liquid level of the solution in the extraction component 2 , so that the outer wall corresponding to the extraction solvent-free area of the extraction component 2 can effectively contact the condensate in the condensation cover 5 .

[0045] The heating component of the explosion-proof reflux extraction device of this embodiment can use one or more heating devices selected from the group consisting of an electric heating device, a steam heating device, a jacket heating device, and a radiation heating device to heat the extraction component 2.

[0046] The condensation component 3 of the explosion-proof reflux extraction device described in this embodiment can use any one of ordinary straight condenser tubes, spherical condenser tubes or serpentine condenser tubes to condense the steam in the extraction component 2 to form distilled water that refluxes into the solution in the extraction part 2.

[0047] The extraction component 2 described in this embodiment can be applied to the extraction bottle in the laboratory for heating and reflux, and can also be applied to the extraction tank or reaction tank for heating and reflux in large-scale production.

[0048] The condensation hood 5 and the extraction component 2 in this embodiment are an integral component, which further enhances the effect of the condensation hood 5 on condensing the steam in the extraction component 2 without extraction solvent.

[0049] Example 2

[0050] This embodiment provides an anti-bumping reflux extraction device. Referring to Figure 2 as shown, its structure is substantially the same as that of Embodiment 1, except that: the joint between the extraction component 2 and the condensation component 3 is a necking part 21, and the cross-section of the necking part 21 gradually increases in the direction away from the condensation component 3.

[0051] In this embodiment, the joint between the extraction component 2 and the condensation component 3 is a necking part 21. Since the cross-section of the necking part 21 gradually increases in the direction away from the condensation component 3, the liquid generated by the condensation component 3 can flow back along the inner wall of the necking part 21 to the extraction solvent area of the extraction component 2 under the action of gravity, effectively avoiding the liquid generated by the condensation component 3 from vertically dripping into the extraction solvent area of the extraction component 2 and breaking the uneven liquid surface temperature to cause bumping.

[0052] Embodiment 3

[0053] This embodiment provides an anti-bumping reflux extraction device. Referring to Figure 4 as shown, its structure is substantially the same as that of Embodiment 2, except that: the reflux extraction device is further provided with a pressure sensing device 6, and the pressure sensing device 6 is placed in the necking part 21 of the extraction component 2 to monitor the steam pressure in the extraction solvent-free area of the extraction component 2 in real time.

[0054] Among them, the condensate supply device 4 is provided with a flow rate controller 41, and is communicatively connected with the pressure sensing device 6, and automatically controls the start and stop of the condensate supply of the condensate supply device 4 and the flow rate of the condensate in the condensation cover 5 or / and the condensation component 3 according to the pressure value detected by the pressure sensing device 6.

[0055] Among them, a three-way valve 43 is further provided at the water outlet 42 of the condensate supply device 4. The water inlet of the three-way valve is connected to the water outlet 42 of the condensate supply device 4 through a pipeline. The first liquid outlet of the three-way valve is connected to the water inlet pipe 33 of the condensation component 3, and the second liquid outlet of the three-way valve is connected to the liquid inlet pipe 53 of the condensation cover 5.

[0056] The flow rate controller 41 of the condensate supply device 4 in this embodiment controls the start of the condensate supply of the condensate supply device 4 and the flow rate of the condensate in the condensation cover 5 or / and the condensation component 3 in real time according to the pressure value detected by the pressure sensing device 6, so as to make the steam pressure in the extraction solvent-free area of the extraction component 2 more stable, and avoid the bubbles in the extraction solvent-free area of the extraction component 2 from exploding due to excessive steam pressure changes, causing the light and fine materials to fly everywhere and adhere to the upper surface of the inner wall.

[0057] Before the heating component 1 heats the extraction component 1 to bring the temperature of the solution in the extraction component 1 to the boiling point, the condensate supply device 4 in this embodiment reduces or stops supplying condensate to the condensation component 3, weakens or stops the condensation component 3 from condensing the vapor from the extraction component 2, so that the solution in the extraction component 1 can be quickly heated up.

[0058] After the solution in the extraction component 1 reaches the boiling point and starts to boil, the condensate supply device 4 controls the start of the condensate supply of the condensate supply device 4 and the flow rate of the condensate in the condensation cover 5 or / and the condensation component 3 in real time according to the pressure value detected by the pressure sensing device 6, to ensure that boiling over is avoided while ensuring heating reflux.

[0059] The reflux extraction device in this embodiment can control the start of the condensate supply of the condensate supply device 4 and the flow rate of the condensate in the condensation cover 5 or / and the condensation component 3 in real time according to the pressure value detected by the pressure sensing device 6. It can not only achieve precise control of the temperature or pressure in the heating reflux process, so as to realize uniform control of the extraction or extraction process, but also effectively reduce energy consumption and reduce the discharge of waste liquid.

[0060] The condensate supply device 4 in this embodiment is also provided with a refrigerator 45. The refrigerator 45 is respectively connected to the water outlet pipe 54 of the condensation cover 5 and the liquid outlet pipe 34 of the condensation component through a three-way valve through the water inlet 46 of the condensate supply device 4, and conveys the condensate that has exchanged heat with the vapor of the extraction component to the refrigerator 45 for refrigeration to meet the temperature requirements of the condensate, so as to realize the recycling of the condensate. The heat generated during the refrigeration process can be conveyed to other heat-using equipment.

[0061] Embodiment 4

[0062] This embodiment provides an anti-bumping reflux extraction device. Refer to Figure 5 As shown, its structure is substantially the same as that of Embodiment 3, the difference being that: the reflux extraction device is provided with a cooling and weighing device 7. The cooling and weighing device 7 is connected to the condensation component 3 to cool the vapor flowing out of the condensation component 3 to form a liquid, collect the liquid and weigh it.

[0063] Among them, the cooling and weighing device 7 includes a condenser 71, a collection tank 72, and an on-line weigher 73. The condenser 71 is hermetically sleeved on the distal end of the condensation component 3 to cool the steam introduced from the condensation component 3 and form a liquid. The collection tank 72 is hermetically connected to the distal end of the condenser 71, so that the liquid automatically flows into the collection tank 72 under the action of gravity for storage. The on-line weigher 73 is connected to the collection tank 72 to read the weight of the liquid in the collection tank 72 in real time, and automatically calculate the amount of solution in the extraction component 2 according to the material feeding amount, the solvent feeding amount, and the weight of the liquid in the collection tank 72.

[0064] Among them, the heating component 1 of the reflux extraction device automatically controls the start-stop and heating power of the heating from the heating component 1 according to the amount of liquid collected by the cooling and weighing device 7 and the amount of solution in the extraction component 2, so as to realize the precise extraction of the reflux extraction device.

[0065] Among them, the condensate of the condenser 71 comes from the condensate supply device 4. A flow control valve 44 is also provided at the water outlet 42 of the condensate supply device 4. The flow rate controller 41 adjusts the supply amount of the condensate of the condensate supply device 4 to the condenser 71 according to the steam flow rate detected by the steam flow meter 35 of the condensation component 3.

[0066] When the reflux extraction device in this embodiment needs to be concentrated, the operator can reduce or stop supplying condensate to the condensation component 3 through the flow rate controller 41 of the condensate supply device 4 in this embodiment, weaken or stop the condensation of the steam from the extraction component 2 by the condensation component 3, so that the steam from the extraction component 2 can directly pass through the condensation component 3 to the condenser 71 of the cooling and weighing device 7 for condensation, and convert the steam from the extraction component 2 into distilled water.

[0067] The condenser 71 in this embodiment uses a pipeline to transport the condensate that has exchanged heat with the steam of the extraction component to the refrigerator 45 for refrigeration.

[0068] The condenser in this embodiment can adopt any device in the prior art such as an air-cooled condenser, a water-cooled condenser (shell-and-tube condenser, double-pipe condenser, shell-and-coil condenser, spiral plate condenser, immersion condenser), an evaporative condenser, and a spray condenser that can convert a gas into a liquid.

[0069] Example 5

[0070] This embodiment uses the explosion-proof boiling reflux extraction device described in Example 2 to extract the crude powder of Epimedium brevicornum Maxim by water extraction.

[0071] Extract medicinal materials: 10 g of crude powder of Epimedium brevicornum Maxim

[0072] Extraction solvent: water

[0073] Extraction parameters: 10 times water, reflux extraction once, extraction for 10 min (starting from the boiling state)

[0074] Equipment used: anti-bumping reflux extraction device and ordinary reflux extraction device

[0075] The anti-bumping reflux extraction device and the ordinary reflux extraction device were used to extract 10 g of Epimedium crude powder respectively. After adding the extraction solvent, the power of the heating device was adjusted to 3 / 4 of the maximum power, and the boiling state of the extraction was observed. After the extraction was completed, the Epimedium medicinal residues hanging on the wall above the solvent liquid level in the extraction container were collected, dried, and the extraction liquid was collected, and the solid content of the extraction liquid was measured. Taking the amount of medicinal residues hanging on the wall and the solid content as indexes, the differences between the anti-bumping reflux extraction device and the ordinary reflux extraction device were compared.

[0076] Results: In this embodiment, the total solid content extracted by the anti-bumping reflux extraction device increased by 35.1% compared with the ordinary reflux extraction device, and the proportion of medicinal residues hanging on the wall and the amount of medicinal materials hanging on the wall decreased by 265.7%.

[0077]

[0078] In the present utility model, the "condensate" refers to a substance that can convert gaseous substances from within the extraction component into liquid substances through any one of the components such as the condensation component, condensation cover, or condenser of the present utility model, and can be delivered within any one of the components such as the condensation component, condensation cover, or condenser.

[0079] The anti-bumping reflux extraction device provided by the present utility model can be applied not only to reflux extraction but also to other processes or methods such as extraction, refining, crystallization, or synthesis involving heating reflux.

[0080] The anti-bumping reflux extraction device provided by the present utility model has been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An anti-bumping reflux extraction device, comprising a heating component, an extraction component, a condensation component, and a condensate supply device. The extraction component is connected to the heating component, the condensation component is connected to the extraction component, and the condensate supply device is connected to the condensation component. It is characterized in that, The reflux extraction device also includes a condensation hood, which is installed on the junction of the condensation component and the extraction component and is sleeved on the extraction component. The condensation hood is configured to condense the steam in the extraction component to form small droplets, which reflux along the inner wall of the extraction component into the solution in the extraction component.

2. The anti-explosion boiling reflux extraction device according to claim 1, characterized in that: The condensation hood includes a hood body, which covers at least a part of the extraction component. A chamber is provided in the hood body, a liquid inlet pipe is provided at the top of the hood body, and a liquid outlet pipe is provided at the bottom of the hood body. Condensate enters the hood body chamber through the liquid inlet pipe and flows out through the liquid outlet pipe.

3. The anti-bumping reflux extraction device according to claim 2, characterized in that, The joint portion between the extraction component and the condensation component is a neck portion, and the cross section of the neck portion gradually increases in a direction away from the condensation component.

4. The anti-bumping reflux extraction device according to claim 1, wherein, The condensation hood and the extraction component are an integral component.

5. The anti-explosion boiling reflux extraction device according to any one of claims 1 to 4, characterized in that: The reflux extraction device is further provided with a pressure sensing device, which is placed in the neck portion of the extraction component and monitors the steam pressure in the extraction solvent-free area of the extraction component in real time.

6. The anti-bumping reflux extraction device according to claim 5, wherein, The condensate supply device is provided with a flow rate controller and is in communication with a pressure sensing device, and automatically controls the start and stop of the condensate supply of the condensate supply device and the condensate flow rate in the condensation hood or\and the condensation component according to the pressure value detected by the pressure sensing device.

7. The anti-bumping reflux extraction device according to claim 6, characterized in that, The water outlet of the condensate supply device is also provided with a three-way valve, the water inlet of the three-way valve is connected to the water outlet of the condensate supply device through a pipeline, the first liquid outlet of the three-way valve is connected to the water inlet pipe of the condensation component, and the second liquid outlet of the three-way valve is connected to the liquid inlet pipe of the condensation cover.

8. The anti-bumping reflux extraction device according to claim 5, characterized in that, The reflux extraction device is provided with a cooling and weighing device, which is connected to the condensing component, cools the water vapor flowing out of the condensing component to form liquid, collects the liquid and weighs it.

9. The anti-bumping reflux extraction device according to claim 8, characterized in that, The cooling and weighing device includes a condenser, a collection tank, and an online weighing device. The condenser is tightly sleeved on the distal end of the condensing component to cool the steam introduced from the condensing component. The collection tank is tightly connected to the distal end of the condenser so that the distilled water automatically flows into the collection tank under the action of gravity for storage. The online weighing device is connected to the collection tank to read the weight of the distilled water in the collection tank in real time and automatically calculate the amount of solution in the extraction component based on the material feed amount, the solvent feed amount, and the weight of the liquid in the collection tank. The condensing component is provided with a steam flow meter to detect the steam flow passing through the condensing component. The condensate supply device is further provided with a flow control valve, which regulates the amount of condensate supplied by the condensate supply device to the condenser according to the steam flow detected by the steam flow meter of the condensing component.

10. The anti-bumping reflux extraction device according to claim 9, wherein, The heating component controls the start and stop of heating and the heating power of the heating component according to the weight of the distilled water collected by the cooling and weighing device.

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