Artemisia argyi essential oil distillation layered extraction equipment
By using a rotating condenser and finned structure in the Artemisia argyi essential oil distillation equipment, the problem of insufficient heat exchange in the condenser was solved, achieving a more efficient steam condensation and heat exchange effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANGSHAN YIHONGAI AGRICULTURAL TECHNOLOGY CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-16
AI Technical Summary
The heat exchange in the condenser of the existing Artemisia argyi essential oil distillation equipment is insufficient, resulting in low steam condensation efficiency and affecting the overall equipment efficiency.
The system employs a rotating condenser tube combined with fins and a fan structure. Steam drives the condenser tube to rotate and disrupts the boundary layer, thereby improving heat exchange efficiency.
It improves steam condensation efficiency, reduces the residence time of steam in high-temperature areas, avoids local overheating, and enhances the overall heat exchange effect.
Smart Images

Figure CN224365380U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of artemisia essential oil distillation technology, and in particular to an artemisia essential oil distillation and layer extraction device. Background Technology
[0002] Artemisia argyi is a perennial herb belonging to the Artemisia genus of the Asteraceae family. It has been used in China for more than 3,000 years and has extremely high medicinal, edible, and cultural value. Distilling Artemisia argyi to extract essential oil is to highly concentrate its natural active ingredients, so that they can be applied more efficiently, conveniently, and widely in the fields of medical care, beauty and skin care, insect repellent and epidemic prevention, and to enhance its economic value and preservation.
[0003] The equipment for distilling and separating mugwort essential oil mainly consists of a distillation kettle, a condenser, a sedimentation tank, and a heating system. First, chopped mugwort is placed into the distillation kettle, and steam or water is introduced for heating, causing the essential oil to evaporate with the steam. The steam enters the condenser and is liquefied by circulating cold water to form an oil-water mixture. The mixture then flows into the sedimentation tank, where it separates into layers due to the density difference between the hydrosol and the essential oil. Finally, the essential oil and hydrosol are collected separately. The essential oil must be stored in a dark-colored, sealed bottle away from light. Temperature and distillation time must be controlled throughout the process to ensure purity.
[0004] In existing artemisia essential oil distillation and extraction equipment, the condenser usually adopts an external water supply method. The cooling liquid flows through the outside of the condenser tube and exchanges heat with the steam inside the tube. However, the internal structure of the condenser currently in common use is mostly a spiral tube design. Due to this spiral structure, when the steam flows through the condenser, some of the steam cannot fully contact the effective heat exchange surface of the condenser tube, resulting in insufficient heat exchange between the steam and the condenser tube wall. This incomplete heat exchange process directly reduces the condensation efficiency of the steam and becomes a key factor restricting the improvement of the overall efficiency of the equipment. Utility Model Content
[0005] The purpose of this invention is to solve the problem of insufficient heat exchange during the use of condensers in the prior art, which leads to a reduction in steam condensation efficiency, and to propose a distillation and stratification extraction device for Artemisia argyi essential oil.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A distillation and layered extraction device for Artemisia argyi essential oil includes a distillation kettle and a condenser tank installed on the steam outlet of the distillation kettle. An air inlet and a liquid outlet are respectively opened on the end face of the condenser tank. A water inlet pipe and a water outlet pipe are respectively installed on the circumference of the condenser tank. The device also includes: a mounting component rotatably installed inside the condenser tank, defining a condensation zone. Spiral condenser tubes are installed intersectingly within the condensation zone, with both ends of the condenser tubes connected to the air inlet and the liquid outlet respectively. Fins are provided on the outer periphery of the condenser tube walls. An air intake component is installed at the air inlet end of the condenser tubes, with the air inlet and outlet ends of the air intake component facing the air inlet and the condenser tube respectively.
[0008] To facilitate faster steam condensation, the suction component preferably includes a mounting bracket fixedly installed inside the condenser pipe, with a fan rotatably mounted on the bracket. When steam enters the condenser pipe, the steam drives the fan to rotate.
[0009] To facilitate the installation of the condenser tube, preferably, the mounting component includes two symmetrically arranged mounting plates with through holes, and the two ends of the condenser tube are respectively installed in the through holes.
[0010] To facilitate the rotation of the condenser tube, a first positioning plate and a second positioning plate are fixedly installed inside the condenser tank. The first positioning plate is connected to the air inlet, and one of the mounting plates is rotatably installed inside the first positioning plate. The second positioning plate is connected to the drain pipe, and the other mounting plate is rotatably installed inside the second positioning plate.
[0011] To facilitate the guidance of steam flow, both the first and second positioning disks are configured as frustum shapes, with the larger ends of both disks facing the air inlet and the smaller ends facing the liquid outlet.
[0012] To facilitate extending the residence time of steam in the condenser, the number of twists of the condenser is preferably in the range of 0.4-0.9 turns.
[0013] Compared with the prior art, this utility model provides a distillation and layering extraction device for Artemisia argyi essential oil, which has the following beneficial effects:
[0014] 1. This artemisia essential oil distillation and stratification extraction equipment uses condenser tubes in conjunction with fins. Due to the liquid flow inside the condenser, the water flow drives the fins and condenser tubes to rotate along the axis of the mounting plate. The rotating condenser tubes allow for a more uniform distribution of the cooling medium within the tubes, avoiding localized poor cooling effects. At the same time, the rotation allows different parts of the condenser tubes to come into contact with steam sequentially, preventing some steam from failing to fully contact the effective heat exchange surface of the condenser tubes, which would otherwise result in insufficient heat exchange between the steam and the condenser tube walls, thus further improving heat exchange efficiency.
[0015] 2. This artemisia essential oil distillation and stratification extraction equipment uses a fan installed inside the condenser tube. The fan is driven by steam, which accelerates the flow of steam inside the condenser tube. On the one hand, it allows the steam to reach the parts of the condenser tube with better cooling effect more quickly, reducing the residence time of steam in the high-temperature area and reducing the steam backflow phenomenon caused by untimely heat dissipation. On the other hand, the fan promotes the flow of steam, which can break the boundary layer between the steam and the inner wall of the condenser tube, forming turbulence and improving heat transfer efficiency.
[0016] The parts of this device not described herein are the same as or can be implemented using existing technologies. This utility model uses a condenser tube in conjunction with fins to make the condenser tube rotate inside the condenser tank, thereby ensuring that the steam fully contacts the inner wall of the condenser tube. This avoids the problem that some steam cannot fully contact the effective heat exchange surface of the condenser tube, resulting in insufficient heat exchange between the steam and the condenser tube wall and reduced condensation efficiency. Attached Figure Description
[0017] Figure 1 This is an isometric structural diagram of a mugwort essential oil distillation and layering extraction device proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the condenser tank of a distillation and layering extraction device for Artemisia argyi essential oil proposed in this utility model;
[0019] Figure 3 This is a partial structural diagram of the condenser tank of a distillation and stratification extraction device for Artemisia argyi essential oil proposed in this utility model;
[0020] Figure 4 This utility model proposes a distillation and layering extraction device for Artemisia argyi essential oil. Figure 3 Enlarged structural diagram at point A in the middle.
[0021] In the diagram: 1. Condenser tank; 2. Mounting plate; 3. Condenser tube; 4. Fins; 5. Mounting bracket; 6. Fan; 7. First positioning plate; 8. Second positioning plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] Example:
[0025] Reference Figures 1-2 A layered extraction device for Artemisia argyi essential oil distillation includes a distillation kettle and a condenser tank 1 installed at the steam outlet of the distillation kettle. The condenser tank 1 is connected to the distillation kettle via a steam pipe. In this application, the distillation kettle is a TDC-300L stainless steel distillation kettle, which facilitates the distillation of Artemisia argyi. A layered tank is fixedly connected to the bottom of the condenser tank 1 via a connecting pipe, which facilitates the collection of condensed liquid. Since the density of essential oil is lower than that of hydrosol, the essential oil floats above the hydrosol, thus achieving the effect of layered extraction. An air inlet and a liquid outlet are respectively opened on the end face of the condenser tank 1. A water inlet pipe and a water outlet pipe are respectively installed on the circumference of the condenser tank 1. The device also includes: a mounting component rotatably installed inside the condenser tank 1, which defines a condensation zone. Spiral condenser tubes 3 are cross-installed in the condensation zone. The two ends of the condenser tubes 3 are connected to the air inlet and the liquid outlet, respectively. The number of twists of the condenser tubes 3 ranges from 0.4 to 0.9 turns. In this application, the number of twists of the condenser tubes 3 is 0. The 0.5-turn spiral condenser effectively extends the residence time of steam within the condenser tube 3, preventing heat buildup and reduced cooling efficiency, a problem common in traditional spiral condenser tubes. Fins 4 are installed on the outer circumference of the condenser tube 3 wall. These fins allow the flowing water within the condenser tank 1 to drive the condenser tube 3 and its mounting components to rotate, generating centrifugal force that ensures the steam fully contacts the inner wall of the condenser tube 3, improving condensation efficiency. Furthermore, the fins enhance heat dissipation, preventing overheating and reduced condensation efficiency after prolonged use. An air intake is installed at the inlet of the condenser tube 3, with its inlet and outlet facing the inlet and condenser tube 3 respectively. This intake draws steam from the distillation vessel into the condenser tank 1, reducing production costs and minimizing steam residence time in high-temperature areas, thus reducing steam backflow due to insufficient heat dissipation.
[0026] Specifically, the condenser tube 3 is used in conjunction with the fins 4. Due to the flow of liquid inside the condenser, the water flow drives the fins 4 and the condenser tube 3 to rotate along the axis of the mounting plate 2. The rotating condenser tube 3 can make the distribution of the cooling medium in the tube more uniform, avoiding the situation of poor local cooling effect. At the same time, the rotation allows different parts of the condenser tube 3 to come into contact with the steam in sequence, avoiding the situation where some steam cannot fully contact the effective heat exchange surface of the condenser tube 3, resulting in insufficient heat exchange between the steam and the wall of the condenser tube 3, thus further improving the heat exchange efficiency.
[0027] The suction component includes a mounting bracket 5 fixedly installed inside the condenser tube 3. A fan 6 is rotatably mounted on the mounting bracket 5. When steam enters the condenser tube 3, the steam drives the fan 6 to rotate. The fan 6, which is installed inside the condenser tube 3, is driven by the steam, which can accelerate the flow speed of the steam inside the condenser tube 3. On the one hand, it can make the steam reach the parts of the condenser tube 3 with better cooling effect more quickly, reduce the residence time of the steam in the high temperature area, and reduce the steam backflow phenomenon caused by untimely heat dissipation. On the other hand, the fan 6 drives the steam flow, which can break the boundary layer between the steam and the inner wall of the condenser tube 3, form turbulence, and improve the heat transfer efficiency.
[0028] A first positioning plate 7 and a second positioning plate 8 are fixedly installed inside the condenser tank 1. The first positioning plate 7 is connected to the air inlet, and one of the mounting plates 2 is rotatably installed inside the first positioning plate 7. The second positioning plate 8 is connected to the drain pipe, and the other mounting plate 2 is rotatably installed inside the second positioning plate 8. Through the cooperation of the first positioning plate 7 and the second positioning plate 8, after the steam enters the first positioning plate 7, it is compressed by the subsequent steam entering, so that the steam enters the condenser pipe 3 and drives the fan 6 to work, which facilitates the intake of steam. At the same time, the cooperation of the first positioning plate 7 and the second positioning plate 8 allows the mounting plate 2 to rotate on the positioning plate, thereby driving the condenser pipe 3 to rotate, so that the steam flows to the inner wall of the steam pipe due to centrifugal force, thereby improving the condensation effect of the steam.
[0029] Both the first positioning plate 7 and the second positioning plate 8 are frustum-shaped, with their larger ends facing the air inlet and their smaller ends facing the liquid outlet. After steam enters the first positioning plate 7, it is guided by the first positioning plate 7 to enter the condenser tube 3, facilitating the condensation process. At the same time, the steam pressure in the first positioning plate 7 increases due to the influence of subsequent steam entering, causing it to flow into the condenser tube 3. Meanwhile, the second positioning plate 8 guides the condensed mixture into the connecting pipe, and then into the stratification tank, facilitating the subsequent stratification of essential oils and hydrosols, thus achieving the effect of stratified extraction and making it convenient to use.
[0030] In this invention, the crushed mugwort is first poured into a distillation kettle. Then, water is injected into the kettle and pressurized to pressurize the mugwort. The boiling liquid vaporizes the mugwort, carrying the substances within it into the condenser tank 1. The steam entering the condenser tank 1 is guided by the first positioning plate 7 and then enters the condenser tube 3. At this time, the steam passes through the fan 6 and drives it to operate. The fan 6 then draws the steam from the first positioning plate 7 and the distillation kettle into the condenser tube 3. Simultaneously, as coolant is injected into the condenser tank 1, the flowing liquid within it pushes the fins 4 to operate, further... The fins 4 drive the condenser tube 3 and the mounting plate 2 to rotate, generating centrifugal force and throwing the steam towards the inner wall of the condenser tube 3, allowing the steam to fully contact the condenser tube 3 and thus improving the condensation effect. At the same time, the installed fins 4 enable the condenser tube 3 to dissipate heat more quickly, avoiding the problem of local overheating when the condenser tube 3 is used for a long time. The cooled steam then condenses into a mixture, which is guided by the second positioning plate 8 and discharged into the layered tank through the connecting pipe. After standing, the mixture separates into hydrosol and essential oil, which can then be extracted according to the requirements.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A distillation and layered extraction device for Artemisia argyi essential oil, comprising a distillation kettle and a condenser (1) installed on the steam outlet end of the distillation kettle, wherein an air inlet and a liquid outlet are respectively opened on the end face of the condenser (1), and a water inlet pipe and a water outlet pipe are respectively installed on the circumferential surface of the condenser (1), characterized in that, Also includes: The mounting component is rotatably installed inside the condenser tank (1), and the mounting component defines the condensation zone. Among them, spiral condenser tubes (3) are installed in a cross pattern in the condensation zone. The two ends of the condenser tubes (3) are connected to the air inlet and the liquid outlet respectively. Fins (4) are provided on the outer periphery of the tube wall of the condenser tubes (3). An air intake component is installed at the air inlet end of the condenser tube (3), with the air inlet end and the air outlet end of the air intake component facing the air inlet and the condenser tube (3) respectively.
2. The artemisia argyi essential oil distillation and layering extraction equipment according to claim 1, characterized in that, The suction component includes a mounting bracket (5) fixedly installed inside the condenser tube (3), and a fan (6) is rotatably mounted on the mounting bracket (5). When steam enters the condenser tube (3), the steam drives the fan (6) to rotate.
3. The artemisia argyi essential oil distillation and layering extraction equipment according to claim 1, characterized in that, The mounting component includes two symmetrically arranged mounting discs (2), with through holes on the mounting discs (2), and the two ends of the condenser tube (3) are respectively installed in the through holes.
4. The artemisia argyi essential oil distillation and layering extraction equipment according to claim 3, characterized in that, The first positioning plate (7) and the second positioning plate (8) are fixedly installed inside the condenser tank (1). The first positioning plate (7) is connected to the air inlet, and one of the mounting plates (2) is rotatably installed in the first positioning plate (7). The second positioning plate (8) is connected to the drain pipe, and the other mounting plate (2) is rotatably installed in the second positioning plate (8).
5. The artemisia argyi essential oil distillation and layering extraction equipment according to claim 4, characterized in that, The first positioning disk (7) and the second positioning disk (8) are both set to a frustum shape, and the large end of the first positioning disk (7) and the second positioning disk (8) are both facing the air inlet, and the small end is both facing the liquid outlet.
6. The artemisia argyi essential oil distillation and layering extraction equipment according to claim 1, characterized in that, The number of twists of the condenser tube (3) ranges from 0.4 to 0.9.