CN209741101U - Plant essential oil extraction device - Google Patents

Abstract

The utility model relates to the technical field of essential oil extraction devices, in particular to a plant essential oil extraction device, which includes a distillation pot body, a heating mechanism, a condensation pipe and an oil-water separator. The sample tray of the distillation raw material, the sample tray is a cylinder with an open top and a screen installed at the bottom, the steam outlet is arranged on the lid of the distillation pot body, the steam outlet is located obliquely above the sample tray, and is misaligned with the sample tray, and the steam outlet is sealed A diversion pipe is plugged in, the upper port of the oil-water separator communicates with the lower port of the condensation pipe, the lower end of the oil-water separator is equipped with a valve, and the oil-water separator is connected with a return pipe connected with the diversion pipe above the valve. The misalignment of the steam outlet and the sample tray of the utility model prevents the liquid flowing out from the steam outlet from dripping on the sample tray, thereby reducing the reaction in the distillation process to a certain extent, and effectively improving the quality of the essential oil.

Description

Plant essential oil extraction device

technical field

The utility model relates to the technical field of essential oil extraction devices, in particular to a plant essential oil extraction device.

Background technique

Plant essential oil is a secondary metabolite with volatile aromatic odor produced in plants. It is composed of simple organic compounds with small molecular weight. It is a kind of volatile oily liquid substance with special odor. Due to its various biological activities , It is often made into various flavors and fragrances for use in food, daily chemicals, tobacco and other products. Steam distillation is a commonly used method for extracting plant essential oils. Its process, equipment, operation and other aspects are relatively mature, with low cost and large output. The equipment and operation are relatively simple. There are three main traditional steam distillation methods: Forms: Hydrodistillation, hydrodistillation and steam distillation.

At present, the distillation methods used in non-industrialized large-scale production are mainly water distillation and water distillation, and the equipment is mainly composed of a distillation pot, a condenser and an oil-water separator. Distillation in water usually adopts the method of distillation-reflux, while distillation in water usually does not use the method of reflux. After the distillation without reflux, the volume of the distillate is relatively large, and the yield of essential oil after oil-water separation is low, or an organic solvent is required to extract the distillate. The problem of solvent residue; the advantage of using the reflux method is that the distillate volume is smaller after distillation, and the yield of essential oil is higher after oil-water separation.

Chinese Patent Publication No. CN101768513B, published on June 13, 2012, the title of the patent is "Method and Extraction Device for Preparing Flavors for Tobacco by Separation of Material and Solvent", and the extraction device disclosed in this application includes a condenser, a volatile oil extraction separator, The heater is provided with 2-12 layers of mesh shelves with an aperture of 10-100 mesh on the upper part of the inner wall of the heater, and a heating jacket is installed on the bottom of the heater. The heating jacket is a double-layer glass heating jacket heated by an oil bath. The display controller is connected, the rising pipe of the volatile oil extraction separator is provided with a heat preservation cover, and the angle between the rising pipe and the collecting pipe is 30-40 degrees. Heating the extraction solvent in the extraction device to generate steam can extract multi-layer materials at the same time, but the reflux liquid formed by condensation flows back from the steam outlet and just flows through the mesh shelf, which will take part of the material components into the solvent Among them, especially the less volatile substances, such as sugars, amino acids, etc., these substances will react when heated in water for a long time, such as the oxidation of unsaturated fatty acids, terpenoids, etc., the hydrolysis of esters, and the Maillard reaction. Generate new substances, leading to changes in the flavor and quality of essential oils.

Utility model content

In view of this, the purpose of this utility model is to provide a plant essential oil extraction device, the steam outlet and the sample plate are misplaced to avoid the liquid flowing out from the steam outlet from dripping on the sample plate, thereby reducing the distillation process to a certain extent. reaction, can effectively improve the quality of essential oils.

The utility model solves the above-mentioned technical problems by the following technical means:

The plant essential oil extraction device comprises a distillation pot body, a condensation pipe and an oil-water separator, and a heating mechanism for heating the distillation pot body. A sample tray support is installed in the distillation pot body, and the sample tray support divides the distillation pot body into There are two layers of steam layer and solvent layer. A sample tray for containing distillation raw materials is installed on the sample tray support. The sample tray is a cylinder with an open top and a screen installed at the bottom. There is a steam outlet connected to the inside of the still body, the steam outlet is located obliquely above the sample tray, and is set in a dislocation with the sample tray, the steam outlet is sealed and plugged with a guide tube, and the still body passes through the guide tube It communicates with the oil-water separator, the upper port of the oil-water separator communicates with the lower port of the condensing pipe, the lower end of the oil-water separator is equipped with a valve, and the oil-water separator is connected with a valve connected to the guide pipe above the valve. Return tube.

The extraction device adopts the above-mentioned technical scheme, adopts the combination of water distillation and reflux to increase the yield of essential oil, heats the water in the distillation pot to evaporate to form water vapor, and the water vapor goes up through the sample tray and contacts the distilled material in the sample tray, The water vapor carrying the volatile essential oil is formed, which is diverted through the guide tube into the condensation tube to condense to form droplets and drop in the oil-water separator, and stratify in the oil-water separator to obtain the essential oil layer in the upper layer and the water in the lower layer The solution in the water layer flows into the diversion pipe through the return pipe, and flows into the distillation pot through the steam outlet. Since the steam outlet and the sample tray are misaligned, it can prevent the reflux liquid from dripping on the materials in the sample tray and prevent the reflux liquid from falling on the material in the sample tray. Taking away part of the ingredients in the distillation material reduces the chemical reaction in the distillation process to a certain extent, and the quality of the obtained essential oil is better.

Further, the inner wall of the distillation pot body is formed with a ring, and the sample tray mounting frame is installed on the ring. Install the sample tray holder through the installation ring to prevent the sample tray holder from falling off.

Further, the sample tray support has a truncated conical structure, and a round hole for clamping the sample tray is opened in the middle. The truncated conical structure of the sample tray support is conducive to the flow collection of the reflux liquid falling on the conical disk, and the reflux liquid is introduced into the solvent layer through the catheter to further prevent the reflux liquid from accumulating and flowing through the distillation material, further reducing the distillation process. The chemical reaction improves the quality of essential oil.

Further, the sample tray support is provided with a catheter near the inner wall of the distillation pot, and the catheter communicates with the solvent layer. The setting of the catheter can guide the liquid accumulated on the sample tray holder into the solvent layer for recycling, further reducing the reaction occurring in the distillation process.

Further, a snap ring is formed on the peripheral outer wall of the sample disk, and the snap ring is snapped on the circular hole. The design of the snap ring can realize the detachable connection between the sample tray and the sample tray holder, which is convenient for changing the sample tray.

Further, the retort body is provided with a refueling port above the sample tray support, and a sealed door is hinged on the refueling port. The setting of the material change port is convenient for taking out the sample tray and replacing the distillation material after the distillation is completed.

Further, the distillation pot body is provided with a water level observation window under the sample tray support. The water level observation window is used to observe the water level, so that water supplement measures can be taken in case of water shortage, so as to ensure the continuation of the distillation process.

Further, the heating mechanism is an induction cooker or an electric ceramic cooker or an oil bath.

The essential oil extraction device of the utility model adopts the method of distillation on water for extraction, which can reduce the occurrence of hydrolysis to a certain extent, adopts the method of reflux to improve the yield of essential oil, and displaces the steam outlet and the sample plate to make the steam The liquid flowing in from the outlet will not drip on the sample tray, avoiding excessive liquid taking away some components in the distillation material, reducing the reaction during the distillation process to a certain extent, and effectively improving the quality of the essential oil.

Description of drawings

Fig. 1 is the structural representation of plant essential oil extracting device of the present utility model;

Among them, the distillation pot body 1, the condenser tube 2, the oil-water separator 3, the heating mechanism 4, the sample tray support 5, the steam layer 61, the solvent layer 62, the installation ring 7, the sample tray 8, the catheter 9, and the snap ring 10 , steam outlet 11, diversion pipe 12, observation window 13, refueling port 14, valve 15, return pipe 16, sealing door 17.

Detailed ways

The utility model will be described in detail below in conjunction with accompanying drawing and specific embodiment:

As shown in Figure 1, plant essential oil extracting device of the present utility model comprises distillation pot body 1, condensation pipe 2 and oil-water separator 3, and is used for heating the heating mechanism 4 of distillation pot body 1, and heating mechanism 4 can be induction cooker, A common heating device such as an electric ceramic stove or an oil bath is used to heat the water inside the distillation pot body 1 to evaporate to form water vapor. The inner wall of the still body 1 is integrally formed with an installation ring 7, and a sample tray support 5 is installed on the installation ring 7. The sample tray support 5 divides the interior of the still body 1 into two layers, a steam layer 61 and a solvent layer 62. A sample tray 8 for containing distillation raw materials is installed on the tray support 5. The sample tray 8 is a cylinder with an open top and a screen installed at the bottom. The screen can prevent the distillation material from leaking out. The mesh number of the screen is selected so that the water vapor The preferred range is 40-100 mesh, and a snap ring 10 is integrally formed on the outer peripheral wall of the sample disk 8 .

The sample tray holder 5 is in the form of a truncated conical structure, with a round hole on the top, the diameter of which is slightly larger than the diameter of the sample tray 8, so that the sample tray 8 can be easily inserted into the round hole with basically no gaps, and can be snapped through the snap ring 10. Set on the round hole to prevent the sample tray 8 from falling. The diameter of the lower circle of the sample tray support 5 is the same as that of the distillation pot body 1, and is clamped on the installation ring 7 or fixed on the installation ring 7 by screws to force water vapor to pass through the sample tray 8. The sample tray support 5 is equipped with a catheter 9 near the inner wall of the distillation pot body 1 , and the catheter 9 communicates with the solvent layer 62 to guide the liquid on the sample tray bracket 5 into the solvent layer 62 .

The lid of the still body 1 is provided with a steam outlet 11 that communicates with the inside of the still body 1. The steam outlet 11 is located obliquely above the sample tray 8, and is misaligned with the sample tray 8 to prevent the liquid flowing in from the steam outlet 11 from dripping on the Sample tray 8. The steam outlet 11 is sealed and plugged with a guide tube 12 for communicating with the inside of the distillation pot body 1. The still pot body 1 communicates with the oil-water separator 3 through the guide tube 12. Heat exchange between the inside of the flow tube 12 and the outside, the upper port of the oil-water separator 3 communicates with the lower port of the condensation pipe 2, the upper port of the condensation pipe 2 is closed, the lower end of the oil-water separator 3 is equipped with a valve 15, and the oil-water separator 3 The lower part is connected with a return pipe 16 communicating with the guide pipe 12, and the return pipe 16 is used to return the water in the lower part of the oil-water separator 3 into the distillation pot body 1.

The retort body 1 is provided with a refueling opening 14 above the sample tray support 5, and a sealing door 17 is hinged on the refilling opening 14. The setting of the refueling port 14 facilitates taking out the sample tray 8 and replacing the distillation material after the distillation is completed. During the distillation process, the sealing door 17 seals the refueling port 14 to avoid leakage of volatile essential oil.

The distillation pot body 1 is provided with a water level observation window 13 under the sample tray support 5 . The water level observation window 13 is used to observe the water level, so that water replenishment measures can be taken in case of water shortage, so as to ensure the continuation of the distillation process.

In addition, the still body 1 is provided with a water inlet pipe under the sample tray support 5, and a valve is installed on the water inlet pipe so as to supply water to the interior of the still body 1 at any time to ensure continuous and stable distillation.

Add the mixture of 100g of lavender and 100g of tobacco dust in the sample tray of the extraction device of this embodiment as the distillation raw material, distill for 2 hours, calculate and obtain the essential oil yield after distillation is 0.90%, and use GC-MS to analyze the essential oil components, calculate the acetic acid The relative percentage content of linalyl ester is 20.35%, and the relative percentage content of furfural is 0.36%. The content of linalyl acetate is related to the hydrolysis reaction of the ester, and the content of furfural is related to the Maillard reaction. The relative percentage content of these two substances is used to characterize the severity of the reaction in the distillation process. It can be seen from this that this The utility model extraction device can effectively reduce the reaction in the distillation process and improve the quality of the essential oil.

The above embodiments are only used to illustrate the technical solution of the utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solution of the utility model can be modified or Equivalent replacement without departing from the purpose and scope of the technical solution of the utility model shall be covered by the claims of the utility model. The technologies, shapes and construction parts not described in detail in the utility model are all known technologies.

Claims (8)

1. plant essential oil extracting device, comprise still pot body, condensing pipe and oil-water separator, and be used for heating the heating mechanism of still pot body, it is characterized in that, described still pot body is equipped with sample tray support, described sample tray support The distillation pot body is divided into two layers: a steam layer and a solvent layer. A sample tray for containing distillation raw materials is installed on the sample tray support. The sample tray is a cylinder with an open top and a screen installed at the bottom. The pot cover of the pot body is provided with a steam outlet connected to the interior of the distillation pot body. The steam outlet is located obliquely above the sample tray, and is misplaced with the sample tray. The steam outlet is sealed and inserted with a guide tube. The distillation The pot body communicates with the oil-water separator through the guide pipe, the upper port of the oil-water separator communicates with the lower port of the condensation pipe, the lower end of the oil-water separator is equipped with a valve, and the oil-water separator is connected with a A return line that communicates with the draft tube. 2. The plant essential oil extraction device according to claim 1, wherein the inner wall of the still body is formed with a ring, and the sample tray mounting frame is installed on the ring. 3 . The plant essential oil extraction device according to claim 2 , wherein the sample tray support is in the form of a truncated cone, and a circular hole for clamping the sample tray is provided in the middle. 4 . 4. The plant essential oil extraction device according to claim 3, wherein the sample tray support is provided with a catheter at a position close to the inner wall of the distillation pot, and the catheter communicates with the solvent layer. 5. The plant essential oil extraction device according to claim 4, wherein a clasp is formed on the outer peripheral wall of the sample plate, and the clasp is set on the circular hole. 6. The plant essential oil extraction device according to claim 5, wherein, the distillation pot body is provided with a refueling port above the sample tray support, and a sealed door is hinged on the refueling port. 7. The plant essential oil extraction device according to claim 6, wherein the distillation pot body is provided with a water level observation window below the sample tray support. 8. The plant essential oil extraction device according to any one of claims 1-7, wherein the heating mechanism is an induction cooker or an electric ceramic cooker or an oil bath.