Plant essential oil extraction device

Abstract

The present invention relates to a plant essential oil extraction device, which is a plant essential oil extraction device for heating a plant raw material to extract a plant essential oil, the plant essential oil extraction device comprising: a frame unit; an extraction unit for extracting a plant essential oil by loading a plant raw material; a heating unit installed on the frame unit for heating the extraction unit; the cooling unit is provided with a first cooling part and a second cooling part and is used for cooling the extraction unit and the heating unit, the environment temperature in the heating unit is adjusted by the plant essential oil extraction device, primary cooling is carried out by the first cooling part, and water is separated from the plant essential oil extracted by the extraction unit; the gas-state plant essential oil liquefied by the primary cooling water and separated by the secondary cooling of the second cooling part can be extracted at one time by double cooling of the finally liquefied plant essential oil without an additional liquid separation process.

Description

Technical Field

[0001] This invention relates to a plant essential oil extraction device, and more specifically, to a plant essential oil extraction device that extracts plant essential oil by adjusting the ambient temperature inside a heating unit, performing a first cooling to separate water from the extracted plant essential oil, liquefying the water through the first cooling, and then separating the gaseous plant essential oil through a second cooling. This dual cooling process eliminates the need for additional separation steps, allowing for the final liquefaction of plant essential oil in one step, thereby maximizing yield, reducing manufacturing costs and time, maximizing productivity, and enabling commercialization of a plant essential oil extraction device. Background Technology

[0002] Typically, many trees commonly found in nature, such as evergreen conifers like pine, cypress, fir, camphor, and hazel, as well as deciduous broad-leaved trees like mulberry, beech, and camellia, contain natural antibacterial or medicinal essential oils that are beneficial to the activities and health of organisms and can be used in various industrial and environmental fields.

[0003] In addition, medicinal plants such as mugwort, herbs, or trees usually contain volatile essential oils with unique aromas. These essential oils are called essential oils or aromatic oils.

[0004] Essential oils extracted from plant-based raw materials each have a unique aroma, and they not only have strong bactericidal properties but also excellent preservative properties.

[0005] The main components of plant essential oils are oxygenated compounds, including alcohols, aldehydes, ketones, organic acids and esters, as well as monoterpenes and sesquiterpenes.

[0006] In particular, with the progress in research on the pharmacological properties of plant essential oils in enhancing immunity, stabilizing the nervous system, anti-cancer effects, delaying aging, and antibacterial properties, natural essential oils have been successfully applied to daily necessities such as cosmetics, food, medicine, and soap.

[0007] Recently, with the increasing attention paid to the antibacterial and antioxidant activities of natural spices, natural preservatives and sweeteners by the food and cosmetics industries, the demand for plant-based natural essential oils, in addition to their original aromatic functions, is also showing a growing trend.

[0008] For example, plant bactericides, a representative antibacterial essential oil, are antibiotics released by trees to defend against harmful factors such as pests or microorganisms. They have excellent antibacterial, anti-inflammatory, anti-allergic, and antioxidant effects, and are therefore widely used in various industries such as fragrances, perfumes, bath products, building interior materials for inhibiting virus proliferation, deodorizing and purifying the air, as well as functional cosmetics or natural preservatives.

[0009] For example, resveratrol and oligomeric proanthocyanidins, as representative medicinal essential oil components, have significant anti-cancer, anti-inflammatory, anti-allergic and antioxidant effects, and can effectively prevent and relieve common adult diseases such as muscle pain, high blood pressure, osteoarthritis, diabetes, arteriosclerosis, and skin aging.

[0010] However, the concentration of essential oil components in plants is extremely low, accounting for only about 0.0001% to 5% of the dry weight, which makes extraction extremely difficult. Existing plant essential oil extraction devices and methods are unable to successfully extract plant essential oils with extremely low content, resulting in a significant reduction in extraction yield.

[0011] In other words, existing plant essential oil extraction devices and methods face numerous difficulties in the extraction process, resulting not only in low extraction yields but also in the loss of key components due to the multiple extraction steps. This leads to increased extraction time and costs for plant essential oils, as well as higher selling prices, which in turn causes consumer dissatisfaction and hinders their commercialization.

[0012] Existing methods for extracting plant essential oils from tree and other plant-based raw materials include steam distillation, extraction with polar and non-polar organic solvents, dry distillation, and supercritical fluid extraction.

[0013] Steam distillation extraction is the most widely used method. Short-cut plant material is placed in an extractor, and steam is introduced into the extractor by water distillation. The active ingredients in the plant material are extracted using this mixed steam, and the extract is then collected and the water and oil layers are separated.

[0014] However, existing methods for extracting plant essential oils using steam extraction are difficult to continuously supply steam at a predetermined temperature and pressure when extracting plant raw materials containing very small amounts of essential oil components, making it difficult to improve the yield and causing inconvenience to operators.

[0015] Furthermore, existing methods for extracting plant essential oils using steam distillation suffer from a significant reduction in extraction yield due to the need for a separation step involving collecting the extract and separating the oil and water layers. This process not only increases the manufacturing cost of the extraction equipment but also hinders miniaturization due to its complex structure, ultimately leading to reduced space utilization. The additional water separation step further increases extraction time and costs, raising the unit price of the extracted essential oils and causing consumer dissatisfaction. Additionally, it can result in a decrease in the purity of the extracted essential oils.

[0016] In addition, existing methods for extracting plant essential oils using dry distillation involve placing a container containing the extract inside a large, dome-shaped kiln, supplying fuel to the kiln opening, and then heating the container to extract the essential oil.

[0017] However, in existing dry distillation methods for extracting plant essential oils, the heat radiating from the kiln cannot heat the entire surface of the loading container at a uniform temperature within a certain time. As a result, the conductive heat inside the loading container is not only difficult to transfer to the surface of the material being extracted, but only a portion of the essential oil contained on the surface of the plant material can be extracted, leading to a significant reduction in extraction yield. In addition, due to the low heat dissipation efficiency of the kiln, heating is required for a long time, which leads to a decrease in production efficiency and a decline in the quality of the extracted essential oil components.

[0018] In recent years, in order to overcome the problems of the above-mentioned steam extraction method, a technology using a large and expensive supercritical extraction system with high pressure carbon dioxide to extract essential oils has been developed. However, maintaining a high pressure of 250-450 psi carbon dioxide in the production process poses risks to operators and increases the possibility of safety accidents. Because high pressure carbon dioxide must be generated, not only is it impossible to achieve equipment compactness, but it also leads to increased equipment manufacturing costs, as well as increased equipment maintenance and management costs and time costs.

[0019] Therefore, there is an urgent need to develop a plant essential oil extraction device that can not only reduce the manufacturing cost and time of plant essential oil extraction devices and achieve miniaturization of equipment to maximize space utilization, but also complete the extraction of plant essential oils in one step without additional liquid separation steps, thereby maximizing yield, reducing manufacturing costs, manufacturing time, maintenance time and costs, maximizing productivity, and realizing commercialization of plant essential oil extraction devices. Summary of the Invention

[0020] Technical problems to be solved This invention addresses the aforementioned problems and aims to provide a plant essential oil extraction device that, by adjusting the ambient temperature inside a heating unit, performs a first cooling process to separate the extracted plant essential oil from the extraction unit into liquid form, liquefies the liquid through the first cooling, and then separates the gaseous plant essential oil through a second cooling process, thereby extracting the final liquefied plant essential oil through a double cooling process. This allows for rapid and convenient extraction of plant essential oil in a single step without the need for an additional separation process, maximizing yield, reducing manufacturing costs, time, and maintenance time and costs, maximizing productivity, and enabling commercialization of a physical essential oil extraction device.

[0021] Technical solution To achieve the aforementioned objective, according to the present invention, a plant essential oil extraction apparatus is provided for heating plant raw materials to extract plant essential oils. The apparatus comprises: a frame unit; an extraction unit for extracting plant essential oils by loading plant raw materials; a heating unit mounted on the frame unit for heating the extraction unit; and a cooling unit having a first cooling section and a second cooling section for cooling the extraction unit and the heating unit. The plant essential oil extraction apparatus regulates the ambient temperature inside the heating unit. The first cooling section performs a primary cooling process to separate the plant essential oil extracted from the extraction unit into liquid water. The liquid water is liquefied through primary cooling, and the gaseous plant essential oil is separated by secondary cooling through the second cooling section. Through this dual cooling process, the finally liquefied plant essential oil can be extracted in one step without an additional separation process.

[0022] Furthermore, in a preferred embodiment of the plant essential oil extraction apparatus according to the present invention, the plant essential oil extraction apparatus further includes: a sensing unit for measuring the internal temperature of the heating unit and the cooling unit; and a control unit for controlling the operation of the heating unit and the cooling unit according to the type of plant raw material and the detection result of the sensing unit.

[0023] Furthermore, in another preferred embodiment of the plant essential oil extraction apparatus according to the present invention, the frame unit of the plant essential oil extraction apparatus includes: a plurality of first frames, one end of which is fixed to the ground and the other end of which extends in the height direction; and a plurality of second frames, which extend in the horizontal and vertical directions on the plurality of first frames.

[0024] Furthermore, in another preferred embodiment of the plant essential oil extraction device according to the present invention, the heating unit of the plant essential oil extraction device includes: a housing portion formed of heat-insulating material and on which the extraction unit is disposed; and a heating portion disposed inside the housing portion, which heats the extraction unit under the control of the control unit. The housing portion includes: a bottom portion disposed on the upper part of the frame unit; a side wall portion extending upward in the height direction from each corner of the bottom portion; and a cover portion detachably connected to the upper part of the side wall portion, which, in the connected state, together with the extraction unit, forms a space portion inside the side wall portion. The heating portion includes: a terminal portion detachably mounted on the side wall portion and powered according to the control of the control unit; a heating coil that generates heat through the power supplied by the terminal portion; a support portion having a placement portion for placing the heating coil; and a fixing portion that fixes and supports the support portion by being combined with the side wall portion.

[0025] Furthermore, in another preferred embodiment of the plant essential oil extraction apparatus according to the present invention, the control unit of the plant essential oil extraction apparatus includes: a data storage unit for storing data required to obtain the final liquefied plant essential oil in one step through dual cooling without additional separation steps; a judgment unit for determining, based on the data stored in the data storage unit and the sensing results of the sensing unit, whether the current ambient temperature inside the heating unit, or the temperature, flow rate, or time of the cooling fluid flowing through the cooling unit needs to be adjusted; an analysis unit for analyzing, based on the data stored in the data storage unit, the sensing results of the sensing unit, and the judgment result of the judgment unit, the adjustment amount of the heating temperature and heating time of the heating unit, and the temperature, flow rate, or time of the cooling fluid; and a processing unit for adjusting the operation of the heating unit and the cooling unit based on the data stored in the data storage unit, the sensing results of the sensing unit, the judgment result of the judgment unit, and the analysis result of the analysis unit.

[0026] Furthermore, in another preferred embodiment of the plant essential oil extraction apparatus according to the present invention, the extraction unit of the plant essential oil extraction apparatus includes: a chamber portion having a connector portion inside and being detachably installed inside the heating unit for loading plant raw materials to extract plant essential oils; a separation portion including: a cavity portion for the flow of cooling fluid supplied by the cooling unit and detachably connected to the upper part of the chamber portion; a shielding portion detachably connected to the connector portion for shielding the upper part of the chamber portion and forming a separation chamber together with the cavity portion; and an extraction portion including: a recovery flow path, a discharge portion communicating with the separation chamber, wherein water is liquefied by primary cooling of the first cooling portion to recover the separated gaseous plant essential oils; and a recovery portion connected to the other end of the recovery flow path for recovering the plant essential oils that have flowed along the recovery flow path and been liquefied after secondary cooling by the second cooling portion.

[0027] Furthermore, in another preferred embodiment of the plant essential oil extraction apparatus according to the present invention, the first cooling section of the cooling unit of the plant essential oil extraction apparatus includes: a storage section for storing cooling fluid; a supply section for supplying the cooling fluid stored in the storage section; and a pipeline section connected to the supply section on one side and the storage section on the other side, extending through the cavity section to allow the cooling fluid to flow. The second cooling section includes: a tank section housing the coil section of the recovery flow path inside; an inflow flow path section connected to the storage section on one side and the tank section on the other side for supplying cooling fluid into the tank section; and an outflow flow path section connected to the tank section on one side and the storage section on the other side for discharging the cooling fluid circulating inside the tank section and cooling the coil section to the outside of the tank section.

[0028] Furthermore, in a preferred embodiment of the plant essential oil extraction apparatus according to the present invention, the sensing unit of the plant essential oil extraction apparatus includes: a first sensing unit for measuring the ambient temperature of the space; and a second sensing unit for measuring the temperature of the cooling fluid flowing inside the pipeline extending through the cavity.

[0029] Furthermore, in a preferred embodiment of the plant essential oil extraction apparatus according to the present invention, the plant essential oil extraction apparatus is such that the plant raw material loaded into the chamber is heated by the heating unit through the processing section of the control unit; the water contained in the primary plant essential oil discharged through the flange of the shielding section is cooled once by the cooling fluid flowing along the pipeline and through the cavity, while the ambient temperature inside the space is maintained below 100°C, thereby separating the liquid from the primary plant essential oil; the water is liquefied by the first cooling, and the separated gaseous secondary plant essential oil flows into the discharge section and flows along the recovery flow path to the coil section, where it is cooled again by the cooling fluid flowing through the inflow flow path into the tank section, thereby the finally liquefied plant essential oil is automatically extracted to the recovery section.

[0030] Furthermore, in a preferred embodiment of the plant essential oil extraction apparatus according to the present invention, the shielding portion of the plant essential oil extraction apparatus includes: a body portion that rises from the periphery toward the center and is tapered; and a flange portion that penetrates the center of the body portion and protrudes upward from the center of the body portion. The flange portion has a diameter set to be more than 0.04 times and less than 0.06 times the diameter of the chamber portion.

[0031] Beneficial effects The plant essential oil extraction apparatus according to the present invention has the following functions: by adjusting the ambient temperature inside the heating unit, the plant essential oil extracted from the extraction unit is separated into liquid and water through a first cooling process; the plant essential oil is liquefied by the first cooling water and separated into gaseous state through a second cooling process; and the finally liquefied plant essential oil is extracted through double cooling. Therefore, the plant essential oil can be extracted quickly and easily in one step without the need for an additional separation process, thereby maximizing the yield.

[0032] Furthermore, the plant essential oil extraction apparatus according to the present invention, through dual cooling, can quickly and easily extract plant essential oils in one step without the need for additional separation steps, thereby enabling the large-scale extraction of high-quality plant essential oils and promoting commercial applications by maximizing productivity, thus facilitating the development of various industrial and environmental sectors.

[0033] Furthermore, the plant essential oil extraction device according to the present invention eliminates the need for an additional liquid separation step. Through an optimized and compact design, the plant essential oil extraction device can be miniaturized, effectively reducing manufacturing costs and time while maximizing space utilization.

[0034] According to the plant essential oil extraction apparatus of the present invention, the plant raw material loaded into the chamber is heated by the heating unit through the processing unit of the control unit. The water contained in the primary plant essential oil discharged through the flange of the shielding part is cooled by the cooling fluid flowing along the pipeline and through the cavity part, while the ambient temperature inside the space is maintained below 100°C, thereby separating the liquid from the primary plant essential oil. The water is liquefied by the primary cooling, and the separated gaseous secondary plant essential oil flows into the discharge part and flows along the recovery flow path to the coil part. It is cooled a second time by the cooling fluid flowing into the tank part through the inflow flow path part, thereby automatically extracting the finally liquefied plant essential oil to the recovery part. This automated process not only improves the convenience of the operator's work, but also enhances stability and reliability, effectively prevents safety accidents, and maximizes consumer satisfaction. Attached Figure Description

[0035] Figure 1 A perspective view of a plant essential oil extraction apparatus according to an embodiment of the present invention is shown.

[0036] Figure 2 A front view of a plant essential oil extraction apparatus according to an embodiment of the present invention is shown.

[0037] Figure 3 A side view of a plant essential oil extraction apparatus according to an embodiment of the present invention is shown.

[0038] Figure 4 A lower perspective view of a plant essential oil extraction apparatus according to an embodiment of the present invention is shown in the upper open state.

[0039] Figure 5 An exploded perspective view of the heating element of a heating unit in a plant essential oil extraction apparatus according to an embodiment of the present invention is shown.

[0040] Figure 6 A front perspective view of a plant essential oil extraction apparatus according to an embodiment of the present invention in its side-open state is shown.

[0041] Figure 7 Show Figure 6 A three-dimensional view of the front of the image with the inner side cut open.

[0042] Figure 8 Show Figure 3 The image shows a cross-section of a plant essential oil extraction apparatus according to an embodiment of the present invention.

[0043] Figure 9 A structural diagram of the control unit of a plant essential oil extraction apparatus according to an embodiment of the present invention is shown. Detailed Implementation

[0044] The following will describe in detail a plant essential oil extraction apparatus according to embodiments of the present invention with reference to the accompanying drawings. The embodiments described below are provided as examples only to enable those skilled in the art to fully understand the technical concept of the present invention. Therefore, the present invention is not limited to the embodiments described below, and may be implemented in other forms. Furthermore, in the accompanying drawings, for ease of explanation, the dimensions and thickness of the apparatus may be exaggerated. And throughout the specification, the same reference numerals denote the same constituent elements.

[0045] The advantages and features of the present invention, as well as the methods for achieving these advantages and features, will become more apparent from the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in many different forms only, which are intended to make the disclosure of the invention more complete and to enable those skilled in the art to fully understand the scope of the invention. The invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals denote the same constituent elements. In the drawings, the dimensions of the layers and regions and their relative dimensions may be exaggerated for clarity of illustration.

[0046] The terminology used in this specification is for illustrative purposes only and is not intended to limit the invention. Unless otherwise specified, the singular forms also include the plural forms in this specification. In the use of the terms "comprise" and / or "comprising" as used in this specification, the reference to constituent elements, steps, operations, and / or components does not exclude the possibility of one or more other constituent elements, steps, operations, and / or components.

[0047] Figure 1 A perspective view of a plant essential oil extraction apparatus according to an embodiment of the present invention is shown. Figure 2 A front view of a plant essential oil extraction apparatus according to an embodiment of the present invention is shown. Figure 3 A side view of a plant essential oil extraction apparatus according to an embodiment of the present invention is shown. Figure 4 A lower perspective view of a plant essential oil extraction apparatus according to an embodiment of the present invention is shown in the upper open state. Figure 5 An exploded perspective view of the heating element of a heating unit in a plant essential oil extraction apparatus according to an embodiment of the present invention is shown. Figure 6 This is a front perspective view of a plant essential oil extraction apparatus according to an embodiment of the present invention in its side-open state. Figure 7 Show Figure 6A three-dimensional view of the front of the body with the inner side cut open. Figure 8 Show Figure 3 The image shows a cross-section of a plant essential oil extraction apparatus according to an embodiment of the present invention. Figure 9 A structural diagram of the control unit of a plant essential oil extraction apparatus according to an embodiment of the present invention is shown.

[0048] The terms used below are defined as follows. "Horizontal direction" refers to the transverse direction within the same component, i.e. Figures 1 to 4 and Figures 6 to 8 In this context, the X-axis direction, or "vertical direction," refers to the longitudinal direction that is orthogonal to the horizontal direction and exists within the same component. Figures 1 to 4 and Figures 6 to 8 In this context, the Y-axis direction, or "height direction," refers to the vertical direction within the same component that is orthogonal to both the horizontal and vertical directions. Figures 1 to 4 and Figures 6 to 8 The Z-axis direction. Furthermore, "above (upper part)" refers to the upper direction in the "height direction," that is... Figures 1 to 4 and Figures 6 to 8 The direction of the center is upward along the Z-axis. "Below (lower part)" refers to the lower side in the "height direction," that is... Figures 1 to 4 and Figures 6 to 8 The direction is towards the Z-axis and below.

[0049] Furthermore, "inner side (interior)" refers to the side of the same component that is relatively closer to the center, that is... Figures 1 to 4 and Figures 6 to 8 The inner side of a component is the opposite of the center; the outer side (outer side) refers to the side of the component that is relatively far from the center. Figures 1 to 4 and Figures 6 to 8 The outer side of the middle.

[0050] Reference Figures 1 to 9 The plant essential oil extraction apparatus 1 according to the present invention will be described below. (Refer to...) Figures 1 to 9 According to an embodiment of the present invention, a plant essential oil extraction device 1 includes a frame unit 100, an extraction unit 200, a heating unit 300, a cooling unit 400, a sensing unit 500, and a control unit 600.

[0051] Plant essential oils are volatile oils with a distinctive aroma found in plants such as medicinal plants, herbs, or trees. These plant essential oils exist at extremely low concentrations, ranging from approximately 0.0001% to 5% by dry weight. A plant essential oil extraction apparatus refers to the device used to extract these plant essential oils.

[0052] The frame unit 100 constitutes the external structure of the plant essential oil extraction device and is equipped with an extraction unit, a heating unit, a cooling unit, a sensing unit, and a control unit for extracting plant essential oils. It also provides space for extracting plant essential oils and performs the function of supporting these components.

[0053] While not necessarily limited to this, the frame unit 100 of the plant essential oil extraction apparatus according to an embodiment of the present invention includes a plurality of first frames 110 and a plurality of second frames 120.

[0054] Multiple first frames 110 are fixed at one end to the ground and extend vertically at the other end. Multiple second frames 120 extend horizontally and vertically from the multiple first frames. These first and second frames are made of rectangular or circular metal tubes.

[0055] The extraction unit 200 extracts plant essential oils by loading plant-based raw materials.

[0056] The heating unit 300 is mounted on the frame unit and is used to heat the extraction unit.

[0057] The cooling unit 400 includes a first cooling section 410 and a second cooling section 420 for cooling the extraction unit and the heating unit.

[0058] The sensing unit 500 is used to measure the temperature inside the heating unit and the cooling unit.

[0059] The control unit 600 controls the operation of the heating unit and the cooling unit based on the type of plant-based raw material and the detection results of the sensing unit.

[0060] The plant essential oil extraction device adjusts the ambient temperature inside the heating unit, and the plant essential oil extracted from the extraction unit is cooled once by the first cooling unit to separate the water. The water is liquefied by the first cooling and the gaseous plant essential oil is separated by the second cooling unit. The plant essential oil is finally liquefied through double cooling, and the extraction can be completed in one step without additional separation process.

[0061] Therefore, the plant essential oil extraction apparatus of the present invention, through dual cooling, can quickly and easily extract plant essential oils in one step without the need for additional liquid separation steps, thereby maximizing yield. By extracting high-quality plant essential oils in large quantities, and by maximizing productivity to promote commercial applications, it promotes the development of various industrial and environmental fields. By omitting the separate structure used for the liquid separation step, the plant essential oil extraction apparatus is miniaturized, reducing manufacturing costs and time, while maximizing space utilization. By simplifying the plant essential oil extraction apparatus, maintenance costs and time are reduced, while the quality of the extracted plant essential oils is improved, thereby maximizing reliability and safety.

[0062] like Figures 1 to 3 and Figures 6 to 8 As shown, the sensing unit 500 of the plant essential oil extraction apparatus 1 according to the first embodiment of the present invention includes a first sensing part 510 and a second sensing part 520.

[0063] The first sensor unit 510 is used to measure the ambient temperature of the space section. For example... Figure 8 As shown, the ambient temperature of the space section is T1. That is, the first sensing unit is used to detect the ambient temperature of the space section inside the heating unit, which is composed of the heating unit and the extraction unit, and transmits the measured ambient temperature to the control unit.

[0064] The core objective of plant essential oil extraction equipment is to improve the extraction yield. To achieve this, the heating temperature and time need to be adjusted according to the different types of plant raw materials.

[0065] Specifically, whether plant-based raw materials are kept at low temperatures for a long time or at high temperatures for a short time, the total heat energy they withstand can be considered the same. However, in actual plant essential oil extraction, if the raw materials are kept at low temperatures for a long time, the yield will decrease significantly. If the raw materials are kept at high temperatures for a short time, the raw materials will carbonize to form oxalic acid solution, ultimately making it impossible to extract plant essential oils.

[0066] Therefore, to maximize the extraction yield of plant essential oils, the extraction process needs to be determined using a function of temperature and time, based on the type of plant material, through repeated experiments and big data analysis of the optimal extraction cycle, and requires continuous refinement. Specifically, the first sensor unit continuously measures the ambient temperature of the space during the plant essential oil extraction process to derive the aforementioned temperature-time function, and transmits the measured data to the control unit.

[0067] The analysis and processing units of the control unit, described later, through repeated experiments, use temperature data stored in the data storage unit and the temperature detected by the first sensor to correct the temperature-time function using supervised learning, unsupervised learning, and reinforcement learning, generating graphs and storing them in the real-time data storage unit. Thus, the analysis and processing units of the control unit calculate the ambient temperature and target temperature inside the heating unit based on time, and automatically control the calculated ambient temperature and target temperature.

[0068] The second sensor unit 520 is used to measure the temperature of the cooling fluid flowing inside the pipeline section that extends through the cavity section. That is, the second sensor unit detects the temperature of the cooling fluid flowing into the pipeline section and transmits the detected temperature of the cooling fluid flowing into the cavity section to the control unit, thereby adjusting the flow rate, flow time and flow temperature of the cooling fluid flowing into the pipeline section to maintain the ambient temperature of the space section below the boiling point of water, 100°C.

[0069] Therefore, the second sensor continuously detects the temperature of the coolant flowing through the pipeline section in the process of extracting plant essential oils, and transmits the detected temperature to the control unit, thereby adjusting the flow rate, flow time and flow temperature of the coolant flowing into the pipeline section.

[0070] The analysis and processing units of the control unit, described later, use the data stored in the temperature data storage unit of the data storage unit and the temperature detected by the second sensor unit to generate cooling fluid flow rate, temperature and time data for maintaining the separation step by water liquefaction, thereby extracting plant essential oils in one step without additional separation steps, through supervised learning, unsupervised learning and reinforcement learning, and store this data in the real-time data storage unit.

[0071] Therefore, the analysis and processing units of the control unit automatically control the inflow rate, inflow time, and inflow temperature of the cooling fluid flowing into the pipeline based on time.

[0072] Therefore, the plant essential oil extraction device according to the present invention can be miniaturized with an optimized compact design since no additional liquid separation step is required, and manufacturing costs and time can be reduced while maximizing space utilization.

[0073] like Figure 9As shown, the control unit 600 of the plant essential oil extraction apparatus 1 according to a preferred embodiment of the present invention includes a data storage unit 610, a judgment unit 620, an analysis unit 630, a processing unit 640, and a display unit 650.

[0074] The control unit of the plant essential oil extraction device according to an embodiment of the present invention includes NC (Numerical Control) or CNC (Computerized Numerical Control) and has built-in various numerical control programs. That is, the control unit has built-in driver programs and operating programs for the extraction unit, heating unit and cooling unit, etc., and the corresponding programs are automatically loaded and operated according to the signals issued by the control unit.

[0075] In addition, the control unit communicates with the extraction unit, heating unit, cooling unit and sensing unit through a predetermined protocol.

[0076] That is, the control unit, extraction unit, heating unit, cooling unit, and sensing unit can send and receive signals or measurement data with each other via wired or wireless means such as GSM (Global System for Mobile Communication), CDMA (Code Division Multiple Access), HSDPA (High Speed ​​Downlink Packet Access), HSUPA (High Speed ​​Uplink Packet Access), LTE (Long Term Evolution), LTE-A (Long Term Evolution-Advanced), Bluetooth (Bluetooth™), WLAN (Wireless LAN), Wi-Fi (Wireless Fidelity), Wi-Fi Direct, DLNA (Digital Living Network Alliance), WiBro (Wireless Broadband), and WiMAX (World Interoperability for Microwave Access).

[0077] The data storage unit 610 is used to store the data required to obtain the final liquefied plant essential oil in one step through dual cooling without the need for additional separation steps.

[0078] The data storage unit can be various storage devices such as ROM, RAM, EPROM, flash drives, and hard disk drives, or it can be a network storage system (WebStorage) that performs the storage function of the data storage unit via the Internet.

[0079] like Figure 9 As shown, the data storage unit 610 of the control unit of the plant essential oil extraction device according to an embodiment of the present invention includes a basic data storage unit 611, a temperature data storage unit 612, a sensor data storage unit 613, and a real-time data storage unit 614.

[0080] The basic data storage unit 611 is used to store data on operating procedures, drivers, and types of plant-based raw materials.

[0081] The temperature data storage unit 612 is used to store temperature and time curves, target temperature, ambient temperature, cooling fluid temperature, cooling fluid flow rate, and other data related to the type of plant-based raw material.

[0082] The sensor data storage unit 613 is used to store temperature data detected by the first sensor and the second sensor.

[0083] The real-time data storage unit 614 is used to store information processed in real time by the analysis unit and the processing unit, as well as temperature-time curves and cooling fluid related information derived through machine learning.

[0084] The judgment unit 620 determines, based on the data stored in the data storage unit and the sensing results of the sensing unit, whether the ambient temperature inside the current heating unit, or the temperature, flow rate, or time of the cooling fluid in the flow cooling unit needs to be adjusted.

[0085] The analysis unit 630 analyzes the heating temperature and heating time of the heating unit, as well as the adjustment amount of the temperature, flow rate, or time of the cooling fluid, based on the data stored in the data storage unit, the sensing results of the sensing unit, and the judgment results of the judgment unit.

[0086] The processing unit 640 adjusts the operation of the heating unit and the cooling unit based on the data stored in the data storage unit, the sensing results of the sensing unit, the judgment results of the judgment unit, and the analysis results of the analysis unit.

[0087] Such analysis and processing units can be implemented using at least one of ASICs (Application Specific Integrated Circuits), DSPs (Digital Signal Processors), DSPDs (Digital Signal Processing Devices), PLDs (Programmable Logic Devices), FPGAs (Field Programmable Gate Arrays), controllers, micro-controllers, microprocessors, and electrical units for performing other functions.

[0088] The display unit 650 is used to display the data stored in the data storage unit, the sensing results of the sensing unit, the judgment results of the judgment unit, the analysis results of the analysis unit, and the processing results of the processing unit.

[0089] The display unit may include at least one of a liquid crystal display (LCD), a thin film transistor liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display, a 3D display, and an electronic ink display (E-ink display).

[0090] Furthermore, although not limited to this, the display unit cools the plant essential oil extracted from the extraction unit by adjusting the ambient temperature inside the heating unit to separate the liquid into water. The water is liquefied through the first cooling, and the gaseous plant essential oil is separated by the second cooling. Finally, the liquefied plant essential oil is cooled twice, and without the need for an additional separation process, it can receive information on the type of plant raw material used for extracting plant essential oil, temperature, time, cooling fluid or program information, as well as user operation instructions, in one go, and present it in the form of a touch screen that can output the received operation instructions or various information.

[0091] In addition, the display unit includes a data input program selected based on the screen display program and the screen display program, displays a software switch on the display screen based on the output of the screen display program, and executes input / output commands for mechanical operation by recognizing the ON / OFF state of the software switch.

[0092] In addition, although not limited to this, the display unit can be located on the outer casing or side of the control unit to display various function switches or buttons and various information.

[0093] like Figures 1 to 8 As shown, the heating unit 300 of the plant essential oil extraction apparatus 1 according to the present invention includes a housing part 310 and a heating part 320.

[0094] The housing 310 is made of heat-insulating material and is equipped with an extraction unit.

[0095] The housing portion is used to form the shape of the heating unit and to provide space for installing the extraction unit.

[0096] like Figures 1 to 8 As shown, the housing portion 310 of the heating unit 300 of the plant essential oil extraction apparatus 1 according to the present invention includes a bottom 311, a side wall portion 312, and a cover portion 313.

[0097] The bottom 311 is positioned on the upper part of the frame unit.

[0098] The side wall portion 312 extends upward in the height direction from each corner of the bottom.

[0099] In addition, the inner circumferential surface of the side wall is provided with a reflective heat insulation part 312a made of a high-gloss aluminum plate or a high-brightness white metal plate.

[0100] This reflective heat insulation component, as a structural component, can improve thermal conductivity and suppress heat loss. It can induce the high-temperature radiant heat generated from the heating element to be concentrated in the chamber and separation parts inside the shell, while blocking the transfer and release of radiant heat to the outside of the shell. This maximizes the thermal efficiency of the heating unit, reduces maintenance costs, and shortens the extraction time and cost of plant essential oils.

[0101] The cover 313 is detachably connected to the upper part of the side wall portion, and in the connected state, together with the extraction unit, forms a space portion 314 inside the side wall portion.

[0102] The bottom, side walls, and cover are made of corrosion-resistant stainless steel, forming a rectangular structure with an open top.

[0103] The heating element 320 is located inside the housing and heats the extraction unit under the control of the control unit.

[0104] The heating element is provided in multiple units at predetermined intervals along the height direction of the side wall of the housing.

[0105] like Figure 5 As shown, the heating unit 300 of the plant essential oil extraction apparatus 1 according to the present invention includes a terminal part 321, a heating coil 324, a support part 323 and a fixing part 322.

[0106] Terminal 321 is detachably mounted on the side wall and is powered according to the control unit.

[0107] The heating coil 324 generates heat through a power supply from the terminal section. That is, under the control of the control unit, the terminal section supplies power to the heating coil, thereby causing the heating coil to generate heat.

[0108] While not limited to this, the heating coil, made of nickel-chromium or chromium wire, can release radiant heat in a temperature range of 50°C to 400°C under the control of the control unit, without direct contact with the chamber and separation sections. This radiant heat not only heats the cavity formed between the heating unit and the extraction unit, but also heats the chamber and separation sections of the extraction unit.

[0109] The support portion 323 includes a mounting portion 323a for placing the heating coil. This support portion is formed into a block structure using a ceramic material that is electrically insulating and has excellent high-temperature resistance. The mounting portion for placing the heating coil is formed on the upper side of the support portion. By placing the heating coil there, not only can the heating coil be prevented from detaching, but the size of the housing portion can also be reduced.

[0110] The fixing part 322 fixes the support part by combining with the side wall part, that is, one side of the fixing part is combined with the side wall part, and the other side of the fixing part is combined with the support part, thereby fixing and supporting the support part on the terminal part.

[0111] Although not limited to this, the fixing part is formed by bending a rectangular metal substrate, with a fixing piece 322a formed at one end that couples with the inner circumferential surface of the side wall, and a locking piece 322b formed at the other end that can stably position and fix the support part without it coming off.

[0112] With the snap-fit ​​connection structure of the fixing part, when the support part containing the heating coil is connected to one side of the fixing part by the fixing plate, and the other side of the fixing part is easily, quickly and firmly fixed to the side wall by the locking plate, the compactness of the overall shell not only realizes the miniaturization of the plant essential oil extraction device, but also greatly improves the space utilization rate, while effectively reducing manufacturing costs, time and maintenance costs.

[0113] like Figures 6 to 8 As shown, the extraction unit 200 of the plant essential oil extraction apparatus 1 according to an embodiment of the present invention includes a chamber section 210, a separation section 220 and an extraction section 230.

[0114] The chamber 210 has a connector 211 inside and is detachably installed inside the heating unit for loading plant materials to extract plant essential oils.

[0115] That is, the chamber is formed into a cylindrical shape with a generally hollow interior, with its upper part open and sealed by a separation part, and is detachably installed inside the shell, thereby forming a space for loading plant materials to extract plant essential oils.

[0116] In addition, a silicone sealing gasket is installed inside the joint, which can completely seal the space except for the flange when connected to the shielding part, thereby improving the yield.

[0117] like Figure 8 As shown, the height H of the chamber portion of the plant essential oil extraction device according to an embodiment of the present invention should be set to more than 1.0 times and less than 1.2 times the diameter D of the chamber portion.

[0118] If the height H of the chamber is less than 1.0 times the diameter D of the chamber, the yield will be significantly reduced. That is, heat transfer inside the chamber occurs through the side of the chamber. When the height of the chamber is less than the diameter of the chamber, heat transfer cannot proceed smoothly, and heat cannot be accurately and quickly transferred to the plant material inside the chamber, resulting in a significant reduction in the extraction yield of plant essential oils.

[0119] If the height H of the chamber exceeds 1.2 times the diameter D of the chamber, the extraction yield will decrease, making miniaturization of the plant essential oil extraction device impossible. That is, the increased height of the chamber will lead to increased heat loss not only in the chamber itself but also in the outer shell of the heating unit that houses it, hindering efficient heat conduction. Therefore, the inability to achieve precise and efficient heat conduction to the plant material inside the chamber results in a significant decrease in the extraction yield of plant essential oils, prevents miniaturization, increases manufacturing costs and time, and reduces space utilization.

[0120] like Figures 6 to 8 As shown, the separation section 22 includes: a cavity section 221, in which cooling fluid supplied by the cooling unit flows, and is detachably connected to the upper part of the chamber section; and a shielding section 222, which is detachably connected to the connector section 211, for shielding the upper part of the chamber section and forming a liquid separation chamber 231 together with the cavity section.

[0121] That is, the cavity has a dual structure in which cooling fluid supplied by the first cooling section flows inside, and forms a dome-shaped structure with an upper protrusion and a lower opening, so that it can be detachably attached to the upper part of the chamber section, while sealing the upper part of the chamber section in a secondary manner, and forming a space section inside the shell section together with the chamber section and the shell section.

[0122] That is, the shielding part as a whole forms a cover-shaped structure that protrudes outward from the center and is detachably connected to the connector part, thereby sealing the upper part of the chamber part at one time, and together with the cavity part, forming a liquid separation chamber located in the lower part of the cavity part and the upper part of the shielding part.

[0123] By combining the cavity section and the shielding section, which serve as the separation section, in sequence on the upper part of the chamber section, not only can the complete sealing of the chamber section be achieved to improve the yield, but also manufacturing costs and time can be saved through miniaturization design, and maintenance costs can be reduced.

[0124] In addition, the shielding part 222 includes a body part 222a that rises from the periphery toward the center and is tapered, and a flange part 222b that passes through the center of the body part and protrudes upward from the center of the body part.

[0125] With the shielding part and the chamber part connected at the joint, and the chamber part sealed once, the cavity part is reconnected to the upper part of the chamber part. Except for the flange part, the chamber part is heated inside, and the water-containing plant essential oil gas 3 will not leak to the outside of the chamber part except for the flange part 222b.

[0126] That is, the plant essential oil gas 3, which is heated inside the chamber and contains water, flows into the dispensing chamber 231 only through the flange 222b. The temperature of the dispensing chamber is T2.

[0127] like Figure 8 As shown, in a plant essential oil extraction apparatus according to an embodiment of the present invention, the flange portion 222b of the shielding portion of the separation section is such that the diameter d of the flange portion is set to be more than 0.04 times to less than 0.06 times the diameter D of the chamber portion.

[0128] If the diameter d of the flange is less than 0.04 times the diameter D of the chamber, the internal pressure of the chamber will increase as the internal temperature rises. As a result, the plant essential oil gas 3 containing water generated inside the chamber will be ejected from the flange into the separator at a relatively fast speed. At this time, the water 4 contained in the plant essential oil gas 3 has insufficient time to contact the lower part of the cavity and the cooling fluid flowing along the pipeline, thus it cannot be fully liquefied, resulting in a reduced extraction yield and a significant decrease in the purity of the plant essential oil.

[0129] If the diameter d of the flange exceeds 0.06 times the diameter D of the chamber, even if the internal pressure of the chamber increases due to the increase in internal temperature, the velocity of the water-containing plant essential oil gas 3 generated inside the chamber as it is ejected along the flange is still insufficient. This results in the water 4 contained in the water-containing plant essential oil gas 3 coming into contact with the lower part of the cavity, but not directly contacting the cooling fluid flowing along the pipeline. Consequently, it cannot be fully liquefied, thus reducing the extraction yield and ultimately significantly decreasing the purity of the plant essential oil.

[0130] like Figures 1 to 4 and Figures 6 to 8 As shown, the extraction unit 230 includes: a recovery flow path 232, a discharge section 232a connected to the liquid separation chamber 231, where water is liquefied by primary cooling in the first cooling section, so as to recover the separated gaseous plant essential oil 5; and a recovery section 233, which is connected to the other end of the recovery flow path, for recovering the plant essential oil that has flowed along the recovery flow path and been liquefied after secondary cooling in the second cooling section.

[0131] That is, the recovery flow path 232 has a discharge section on one side, which is connected to the liquid separation chamber, and extends from the recovery section on the other side to be connected to the recovery section. The water-containing plant essential oil gas 3 generated in the chamber section is sprayed out along the flange section and contacts the lower part of the cavity section. The cooling fluid W flowing along the pipeline section is cooled by the first cooling section, so that the water 4 is liquefied and separated, and a channel is formed for recovering the gaseous plant essential oil 5 after the water is liquefied and separated.

[0132] like Figure 8 As shown, in a plant essential oil extraction apparatus according to an embodiment of the present invention, the discharge section 223a of the recovery flow path of the extraction section is such that the height h of the discharge section is formed to be more than 0.10 times to less than 0.15 times the height H of the chamber section.

[0133] When the height h of the discharge section is less than 0.10 times the height H of the chamber section, the water-containing plant essential oil gas 3 generated by the chamber section will be sprayed out along the flange section. After contacting the lower part of the cavity section, it will be cooled by the cooling fluid W flowing along the pipeline section through the first cooling section, causing the water 4 to liquefy and be separated. Not only the gaseous plant essential oil 5 after the water is liquefied and separated, but also the liquefied water 4 will be discharged through the discharge section and mixed with the plant essential oil gas again, resulting in a decrease in yield and purity. At the same time, since an additional water re-separation process is required, it will also cause problems of increased manufacturing time and manufacturing costs.

[0134] If the height h of the discharge section exceeds 0.15 times the height H of the chamber section, it will lead to an increase in the height of the chamber section. Moreover, since not only the size of the heating unit housing in the chamber section also increases, heat loss will increase, making heat transfer difficult. As a result, heat cannot be accurately and quickly transferred to the plant material inside the chamber section, leading to a significant decrease in the extraction yield of plant essential oils. At the same time, the inability to miniaturize the device will also increase the manufacturing cost and time of the plant essential oil extraction device, resulting in a deterioration in space utilization.

[0135] That is, the recovery section 233 is used to recover and store liquefied plant essential oils. At this time, the cooling fluid W flows through the recovery flow path and then through the coil section of the recovery flow path. When it flows into the tank section through the inflow flow path section, it is liquefied after being cooled twice by the second cooling section.

[0136] like Figures 1 to 4 and Figures 6 to 8 As shown, the first cooling section 410 of the cooling unit 400 of the plant essential oil extraction apparatus 1 according to an embodiment of the present invention includes a storage section 412 for storing cooling fluid, a supply section 411 for supplying cooling fluid W stored in the storage section, and a pipeline section 413 that communicates with the supply section on one side and the storage section on the other side, and extends through the cavity to allow the cooling fluid to flow. Preferably, the cooling fluid is water, and the supply section is a pump or the like.

[0137] like Figures 1 to 4 and Figures 6 to 8 As shown, the second cooling section 420 of the cooling unit 400 of the plant essential oil extraction apparatus 1 according to an embodiment of the present invention includes a tank section 421 that internally accommodates a coil section 232b of a recovery flow path, an inflow flow path section 422 that communicates with a storage section on one side and with the tank section on the other side for supplying cooling fluid W into the tank section, and an outflow flow path section 423 that communicates with the tank section on one side and with the storage section on the other side for discharging the cooling fluid circulating inside the tank section and cooling the coil section to the outside of the tank section.

[0138] The plant-based raw materials loaded into the chamber are heated by the heating unit through the processing unit of the control unit. The water contained in the primary plant essential oil discharged through the flange of the shielding part is cooled by the cooling fluid flowing along the pipeline and through the cavity part. At the same time, the ambient temperature inside the space is kept below 100°C, thereby separating the liquid from the primary plant essential oil. The water is liquefied by the primary cooling and the separated gaseous secondary plant essential oil flows into the discharge part and flows along the recovery flow path to the coil part. The cooling fluid flowing into the tank part through the inflow flow path part is cooled a second time by the second cooling part, thereby the finally liquefied plant essential oil is automatically extracted to the recovery part.

[0139] Therefore, the plant essential oil extraction device according to the present invention does not require an additional liquid separation step. With its optimized compact design, the plant essential oil extraction device is miniaturized, effectively reducing manufacturing costs and time, while maximizing space utilization. Through two consecutive cooling processes in the first and second cooling sections, the liquefied plant essential oil is automatically extracted through the recovery section. This automated process not only improves the convenience for operators but also significantly enhances stability and reliability.

[0140] While the detailed description of the present invention refers to preferred embodiments, those skilled in the art or with ordinary technical knowledge in the field will understand that various modifications and alterations can be made to the present invention without departing from the spirit and scope of the invention as defined in the following claims. Therefore, the scope of protection of the present invention should not be limited to the contents described in the detailed specification, but should be determined by the scope defined in the claims.

[0141] In the picture: 1: Plant essential oil extraction device; 100: Frame unit; 200: Extraction unit; 300: Heating unit; 400: Cooling unit; 500: Sensing unit; 600: Control unit.

Claims

1. A plant essential oil extraction apparatus, used for heating plant raw materials to extract plant essential oils, characterized in that, The plant essential oil extraction device includes: Frame unit; The extraction unit extracts plant essential oils by loading plant-based raw materials. A heating unit, mounted on the frame unit, is used to heat the extraction unit; and The cooling unit includes a first cooling section and a second cooling section for cooling the extraction unit and the heating unit. The plant essential oil extraction device adjusts the ambient temperature inside the heating unit. The first cooling unit performs a first cooling to separate the plant essential oil extracted from the extraction unit into liquid water. The liquid water is liquefied by the first cooling and the gaseous plant essential oil is separated by the second cooling unit. Through double cooling, the final liquefied plant essential oil can be extracted in one step without additional separation process.

2. The plant essential oil extraction apparatus according to claim 1, characterized in that, The plant essential oil extraction device further includes: A sensing unit is used to measure the internal temperature of the heating unit and the temperature of the cooling unit; and The control unit controls the operation of the heating unit and the cooling unit based on the type of plant-based raw material and the detection results of the sensing unit.

3. The plant essential oil extraction apparatus according to claim 2, characterized in that, The frame unit includes: Multiple first frames, one end fixed to the ground and the other end extending vertically, are formed; and Multiple second frames are formed extending horizontally and vertically over the multiple first frames.

4. The plant essential oil extraction apparatus according to claim 3, characterized in that, The heating unit includes: The housing portion is formed of heat-insulating material and is provided with the extraction unit; and A heating element is located inside the housing portion and heats the extraction unit under the control of the control unit. The housing portion includes: The bottom is located at the top of the frame unit; The sidewall portion extends upward in the height direction from each corner of the bottom; and The cover is detachably connected to the upper part of the side wall portion, and in the connected state, together with the extraction unit, forms a space inside the side wall portion. The heating element includes: The terminal portion is detachably mounted on the side wall portion and is powered according to the control of the control unit; The heating coil generates heat through a power supply from the terminal portion; The support portion includes a mounting portion for placing the heating coil; and The fixing part is used to fix and support the support part by combining with the side wall part.

5. The plant essential oil extraction apparatus according to claim 4, characterized in that, The control unit includes: The data storage unit is used to store the data required to obtain the final liquefied plant essential oil in one step through dual cooling without the need for additional separation steps; The judgment unit determines, based on the data stored in the data storage unit and the sensing results of the sensing unit, whether the current ambient temperature inside the heating unit, or the temperature, flow rate, or time of the cooling fluid flowing through the cooling unit needs to be adjusted. The analysis unit, based on the data stored in the data storage unit, the sensing results of the sensing unit, and the judgment results of the judgment unit, analyzes the heating temperature and heating time of the heating unit, and the adjustment amount of the temperature, flow rate, or time of the cooling fluid; and The processing unit adjusts the operation of the heating unit and the cooling unit based on the data stored in the data storage unit, the sensing results of the sensing unit, the judgment results of the judgment unit, and the analysis results of the analysis unit.

6. The plant essential oil extraction apparatus according to claim 5, characterized in that, The extraction unit includes: The chamber section has a connector inside and is detachably installed inside the heating unit for loading plant-based raw materials to extract plant essential oils; The separation section includes: a cavity section through which cooling fluid supplied by the cooling unit flows, and is detachably connected to the upper part of the cavity section; a shielding section, detachably connected to the connector section, for shielding the upper part of the cavity section and forming a liquid separation chamber together with the cavity section; and The extraction unit includes: a recovery flow path, a discharge section connected to the separation chamber, wherein water is liquefied by primary cooling of the first cooling section to recover the separated gaseous plant essential oil; and a recovery section connected to the other end of the recovery flow path for recovering the plant essential oil that has flowed along the recovery flow path and been liquefied after secondary cooling by the second cooling section.

7. The plant essential oil extraction apparatus according to claim 6, characterized in that, The first cooling section includes: Storage section, used to store cooling fluid; A supply unit for supplying cooling fluid stored in the storage unit; and The pipeline section, connected to the supply section on one side and the storage section on the other side, extends through the interior of the cavity section to allow the cooling fluid to flow. The second cooling section includes: The tank body internally houses the coil section of the recycling flow path; An inflow passage, connected on one side to the storage section and on the other side to the tank section, is used to supply cooling fluid to the interior of the tank section; and The outflow passage is connected to the tank section on one side and to the storage section on the other side, and is used to discharge the cooling fluid that circulates inside the tank section and cools the coil section to the outside of the tank section.

8. The plant essential oil extraction apparatus according to claim 7, characterized in that, The sensing unit includes: A first sensing unit is used to measure the ambient temperature of the space; and The second sensing unit is used to measure the temperature of the cooling fluid flowing inside the pipeline that extends through the cavity.

9. The plant essential oil extraction apparatus according to claim 8, characterized in that, The plant essential oil extraction device is as follows: The plant-based raw material loaded into the chamber is heated by the heating unit through the processing section of the control unit. The water contained in the primary plant essential oil discharged through the flange of the shielding section is cooled by the cooling fluid flowing along the pipeline and through the cavity, while the ambient temperature inside the space is maintained below 100°C, thereby separating the liquid from the primary plant essential oil. The water is liquefied by the primary cooling, and the separated gaseous secondary plant essential oil flows into the discharge section and flows along the recovery flow path to the coil section. It is cooled a second time by the cooling fluid flowing into the tank section through the inflow flow path, and the finally liquefied plant essential oil is automatically extracted to the recovery section.

10. The plant essential oil extraction apparatus according to claim 9, characterized in that, The shielding part includes: The main body rises from the periphery towards the center and is cone-shaped; and A flange portion is formed, penetrating the center of the body portion and protruding upward from the center of the body portion. The flange portion has a diameter set to be more than 0.04 times and less than 0.06 times the diameter of the chamber portion.

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