CN209741104U - A backward flow type distillation extraction element on water for plant essential oil - Google Patents

Abstract

The utility model relates to an essential oil extraction technical field especially relates to a backward flow type distillation extraction element on water for plant essential oil, including the retort body, the condenser pipe, oil water separator, heating mechanism, water conservancy diversion mechanism, the internal sample dish support of installing of retort, the internal steam layer that divides into of sample dish support with the retort, the solvent layer is two-layer, install the sample dish that is used for holding the distillation raw materials on the sample dish support, be provided with steam outlet on the pot cover of the retort body, the retort body passes through honeycomb duct and oil water separator intercommunication, oil water separator's last port and the lower port intercommunication of condenser pipe, the valve is installed to oil water separator's lower extreme, water conservancy diversion mechanism is including the liquid ware and the drainage tube that connect that communicate each other, connect the liquid ware to be located under the sample dish, the drainage tube will connect the fluid in the liquid ware to draw forth. The utility model discloses a mode that distillation and backward flow on water combine improves the essential oil yield, reduces the reaction that takes place in the distillation process through water conservancy diversion mechanism, improves the essential oil quality.

Description

A backward flow type distillation extraction element on water for plant essential oil

Technical Field

The utility model relates to an essential oil extraction technical field especially relates to a backward flow type distillation extraction element on water for plant essential oil.

background

Generally, some spicy organic matters are generated during the combustion of tobacco, and if some essence such as plant essential oil is added into the cigarette, the spicy taste generated during the combustion of the tobacco can be covered by the aroma, so that the cigarette can generate good smoke effect during smoking. The plant essential oil is extracted from the unique aromatic substances of the plants, and is extracted from flowers, leaves, roots, barks, fruits, seeds and the like of the herbaceous plants by distillation and squeezing. The steam distillation method is a common plant essential oil extraction method, and the technology in the aspects of flow, equipment, operation and the like is mature, the cost is low, the yield is high, and the equipment and the operation are simple. The traditional steam distillation method has 3 main forms: distillation in water, distillation in water and steam distillation.

At present, the distillation modes used in non-industrial mass production are mainly water distillation and water distillation, and the equipment mainly comprises a distillation still, a condenser and an oil-water separator. Distillation-reflux is generally used for distillation in water, while distillation in water is generally not used for reflux. After distillation is finished in a non-reflux mode, the volume of fractions is large, the yield of essential oil after oil-water separation is low, or an organic solvent is needed for extracting the fractions, if the organic solvent is used for extracting the fractions, the organic solvent removal process is needed, and the problem of solvent residue exists in the product; the reflux mode has the advantages that the volume of the distillate is smaller after the distillation is finished, and the yield of the essential oil is higher after the oil-water separation. The existing steam distillation method has the problem that the reaction is easy to occur in the distillation process to different degrees, such as the oxidation of substances such as unsaturated fatty acid, terpenoid and the like, the hydrolysis of ester, the Maillard reaction and the like, so that new substances are generated, and the flavor and the quality of the essential oil are changed. The reactions are mainly caused by that water in the materials to be distilled enters a solvent in the distillation process, and the water contains partial nonvolatile substances such as sugar, amino acid and the like, and chemical reactions can occur under the condition of long-term heating to generate new substances. Therefore, there is a need for a distillation extraction apparatus that can remove water from the material to be extracted and prevent the water from entering the solvent, so as to reduce the chemical reactions occurring during the distillation process and improve the yield and quality of the essential oil.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a backward flow type distillation extraction element on water for plant essential oil adopts the mode that distillation on water and backward flow combine to improve the essential oil yield, reduces the reaction that takes place in the distillation process through water conservancy diversion mechanism, improves the essential oil quality.

The utility model discloses an above-mentioned technical problem is solved to following technical means:

A reflux type water distillation extraction device for plant essential oil comprises a distillation pot body, a condensation pipe and an oil-water separator, wherein a heating mechanism is installed at the bottom of the distillation pot body, the reflux type water distillation extraction device further comprises a flow guide mechanism, a sample tray support is installed in the distillation pot body, the sample tray support divides the interior of the distillation pot body into a steam layer and a solvent layer, a sample tray used for containing distillation raw materials is installed on the sample tray support, a steam outlet communicated with the interior of the distillation pot body is formed in a pot cover of the distillation pot body, the steam outlet is sealed and is connected with a flow guide pipe in an inserted mode, the distillation pot body is communicated with the oil-water separator through the flow guide pipe, an upper port of the oil-water separator is communicated with a lower port of the condensation pipe, a valve is installed at the lower end of the oil-water separator, the flow guide mechanism comprises a liquid receiving device, the drainage tube leads the fluid in the liquid receiver out of the distillation kettle body.

Adopt above-mentioned technical scheme's distillation extraction element, receive the water droplet that the sample dish dropped through connecing the liquid ware to outside the distillation boiler is drawn forth to the water droplet in will connecing the liquid ware through the drainage tube, avoid the water droplet that drops in the sample dish to get into the solvent layer and heat for a long time and produce the reaction, improve essential oil quality.

Furthermore, the outlet end of the drainage tube is inserted into the tube body filled with the solution, and the outlet end of the drainage tube is positioned below the liquid level of the solution.

The outlet end of the drainage tube is arranged below the liquid level, so that water drops dropping from the sample tray can be collected, the overpressure protection effect can be achieved, and the safety accident caused by overlarge pressure in the distillation pot body in the distillation process is avoided.

Further, the steam outlet is positioned obliquely above the sample tray and is arranged in a staggered manner with the sample tray.

If the direct drippage of backward flow liquid is in the sample dish, can reduce the temperature of material in the sample dish, influence extraction efficiency, and with steam outlet and sample dish dislocation setting, can prevent that the backward flow liquid that steam outlet flowed in from directly drippage in the sample dish, improve extraction efficiency.

Furthermore, a return pipe communicated with the flow guide pipe is connected to the lower part of the oil-water separator above the valve. The essential oil distillation extraction is carried out by adopting a mode of combining water distillation and reflux, so that the oil yield can be improved to a certain extent.

Further, the sample tray support is arranged on the inner wall of the distillation pot body, the sample tray support is of a cone frustum structure, and a round hole used for clamping the sample tray is formed in the middle of the sample tray support.

Furthermore, a liquid guide pipe is arranged at the position, close to the inner wall of the distillation pot body, of the sample plate support, and the liquid guide pipe is communicated with the solvent layer.

The sample tray support of the cone frustum structure is beneficial to flow collection of reflux flowing down from the steam outlet, and the reflux is guided into the solvent layer through the liquid guide pipe, so that the reflux is further prevented from accumulating and flowing through distillation materials, and the extraction efficiency is further improved.

Further, the liquid receiver is a conical funnel, and the outlet end of the conical funnel is connected with the drainage tube. The conical funnel covers the bottom of the sample plate completely so as to be capable of better receiving water drops dropped from the sample plate.

Further, the sample disc is a cylinder with an open top and a screen installed at the bottom, the mesh number of the screen is 40-100 meshes, a circular ring is formed on the outer wall of the circumference of the sample disc, and the circular ring is clamped on the circular hole.

further, the retort body has seted up the material changing mouth in sample dish support top, it has sealing door to articulate on the material changing mouth.

Further, a water level observation window is arranged below the sample tray bracket of the distillation pot body.

The distillation and extraction device of the utility model is provided with the flow guide mechanism, and the water drops dropping from the sample tray are guided out of the distillation pot body through the flow guide mechanism, so that the distilled material components in the water drops are prevented from being heated in water for a long time to react, and the quality of the essential oil can be effectively improved; the steam outlet and the sample tray in the distillation and extraction device of the utility model are arranged in a staggered way, so that the reflux liquid can be prevented from reducing the temperature of the materials in the sample tray, and the rectification efficiency can be effectively improved; the utility model discloses a distillation extraction element adopts the mode that distillation on water and reflux combine, can effectual improvement essential oil yield.

Drawings

FIG. 1 is a schematic view of the structure of a reflux type water distillation extraction apparatus described in example 1;

FIG. 2 is a schematic view of the structure of a reflux type water distillation extraction apparatus described in example 2;

FIG. 3 is a schematic view of the reflux type water distillation extractor described in example 3;

FIG. 4 is a schematic structural view of a mount in embodiment 2;

The device comprises a distillation pot body 1, a condensation pipe 2, an oil-water separator 3, a heating mechanism 4, a sample tray support 5, a liquid receiver 61, a drainage pipe 62, an installation ring 7, a sample tray 8, a pipe body 9, a clamping ring 10, a mounting frame 111, a support rod 112, a large ring 121, a small ring 122, a connecting rod 123, a liquid guide pipe 13, a steam outlet 14, a flow guide pipe 15, a valve 16, a return pipe 17, a material changing port 18, a sealing door 19 and a water level observation window 20.

Detailed Description

The invention will be described in detail with reference to the following drawings and specific embodiments:

Example 1

The reflux-type water distillation extraction device comprises a distillation pot body 1, a condensation pipe 2, an oil-water separator 3 and a heating mechanism 4 for heating the distillation pot body 1, wherein the heating mechanism 4 can be a common heating device such as an electromagnetic oven, an electric ceramic oven or an oil bath pot and is used for heating water inside the distillation pot body 1 to evaporate and form water vapor. Integrated into one piece has installation ring 7 on the inner wall of the retort body 1, install sample dish support 5 on the installation ring 7, sample dish support 5 is divided into the steam layer in with the retort body 1, two-layer about the solvent layer, install the sample dish 8 that is used for holding the distillation raw materials on the sample dish support 5, sample dish 8 is opened for the top, the drum of bottom installation screen cloth, the screen cloth can prevent that the distillation material from spilling, the mesh number of screen cloth is selected so that can make steam pass through for the standard, preferred scope is 40 ~ 100 meshes, it has snap ring 10 still to integrated into one piece on the circumference outer wall of sample dish 8, be used for installing sample dish 8.

sample dish support 5 is the circular truncated cone structure, and the round hole has been seted up at its top, and the diameter of round hole slightly is greater than the diameter of sample dish 8, conveniently establishes sample dish 8 card in the round hole, and is seamless basically to establish on the round hole through snap ring 10 card, avoid sample dish 8 to drop. The diameter of the lower circle of the sample disc bracket 5 is the same as the inner diameter of the distillation pot body 1, and the sample disc bracket 5 can be clamped on the mounting ring 7 or fixed on the mounting ring 7 through screws to force water vapor to pass through the sample disc 8. The sample tray bracket 5 is provided with a liquid guide pipe 13 at a position close to the inner wall of the distillation pot body 1, the liquid guide pipe 13 is communicated with the solvent layer, and the liquid collected on the sample tray bracket 5 is guided into the solvent layer.

Be provided with the inside steam outlet 14 of intercommunication retort body 1 on the pot cover of the retort body 1, steam outlet 14 is located sample tray 8's oblique top, and steam outlet 14 and sample tray 8 dislocation set prevent that the reflux that steam outlet 14 flowed into from directly dripping in sample tray 8, prevent that the reflux from reducing the temperature of distillation physics to improve extraction efficiency. Steam outlet 14 adopts the sealing plug sealed, and pegs graft on the sealing plug and have the honeycomb duct 15 of intercommunication retort body 1 inside, and retort body 1 passes through honeycomb duct 15 and oil water separator 3 intercommunication, and the cover is equipped with the heat preservation on the honeycomb duct 15, reduces the inside and external heat exchange of honeycomb duct 15, and oil water separator 3's last port communicates with the lower port of condenser pipe 2, and the last port of condenser pipe 2 seals. The lower end of the oil-water separator 3 is provided with a valve 16, the lower part of the oil-water separator 3 is connected with a return pipe 17 communicated with the draft tube 12, and the return pipe 17 is used for returning water at the lower part of the oil-water separator 3 into the solvent layer for heating and evaporation.

The distillation pot body 1 is provided with a material changing port 18 above the sample disc bracket 5, and the material changing port 18 is hinged with a sealing door 19. The material changing port 18 is arranged to facilitate taking out the sample tray 8 after distillation is finished and changing the distilled materials. During the distillation process, the sealing door 19 seals the material changing port 18 to avoid leakage of volatile essential oil.

The distillation pot body 1 is provided with a water level observation window 20 below the sample tray bracket 5. The water level observation window 20 is used for observing the water level so as to take water supplementing measures when water is deficient and ensure the continuous operation of the distillation process.

In addition, the retort body 1 is installed the inlet tube in sample dish support 5 below, installs the valve on the inlet tube to at any time to the inside moisturizing of retort body 1, guarantee that the distillation lasts stably and goes on.

Example 2

the reflux type water distillation extraction device comprises all structures of embodiment 1, and on the structure basis of embodiment 1, a flow guide mechanism is further arranged, the flow guide mechanism comprises a liquid receiving device 61 and a drainage tube 62 which are communicated with each other, the liquid receiving device 61 is positioned under the sample tray 8 and fully covers the lower end of the sample tray 8 and is used for receiving water drops dropped from the sample tray 8, the liquid receiving device 61 can be set into any shape capable of receiving the liquid drops, preferably, a conical funnel, the outlet end of the conical funnel is connected with the drainage tube 62, the drainage tube 62 leads the liquid in the conical funnel out of the distillation pot body 1, the outlet end of the drainage tube 62 is inserted into a tube body 9 filled with the solution, and the outlet end of the drainage tube 62 is positioned below the solution liquid level so as to adjust the internal pressure of the distillation pot body 1 at any time.

The distillation pot body 1 is internally provided with a stainless steel support for supporting the liquid receiver 61, the stainless steel support comprises an installation frame 111 and a support rod 112, the installation frame 111 is structurally shown in fig. 4, the installation frame 111 comprises a large circular ring 121, a small circular ring 122 and a connecting rod 123 welded between the large circular ring 121 and the small circular ring 122, and the small circular ring 122 is sleeved on the liquid receiver 61. One end of the support rod 112 is welded with the large ring 121, and the other end is welded with the sample plate support frame 5.

Example 3

The present embodiment is an existing water distillation and extraction device, as shown in fig. 3, which is not provided with the reflux structure and the diversion mechanism of the present invention.

The plant essential oil extraction devices of examples 1, 2 and 3 were used for carrying out essential oil distillation extraction experiments, mixtures of 100g of lavender and 100g of tobacco powder are respectively added into sample trays of each extraction device as distillation raw materials, the distillation is carried out for 2 hours, the essential oil yield of each device is calculated after the distillation is finished, the essential oil components are analyzed by GC-MS, and the relative percentage content of linalyl acetate and the relative percentage content of furfural are calculated, and are shown in Table 1. The content of linalyl acetate is relevant with the hydrolysis of ester, and furfural content is relevant with the maillard reaction, and the light degree of taking place the reaction in the distillation process is represented to the relative percentage content of these two substances, can see from this, the utility model discloses an extraction element can effectively reduce the reaction that takes place in the distillation process, improves the essential oil quality.

TABLE 1

The comparison of the data in table 1 shows that the distillation apparatuses in example 1 and example 2 have reflux structures, so that the yield of the essential oil is significantly improved, the yield of the essential oil in the distillation apparatus in example 1 is relatively improved by 30.43% compared with example 3, and the yield of the essential oil in the distillation apparatus in example 2 is relatively improved by 21.74% compared with example 3, which indicates that the design of the reflux structures can effectively improve the yield of the essential oil; in addition, the relative percentage of linalyl acetate and furfural in example 1 was changed by 9.76% and-10.00% from that in example 3 compared with the data in examples 1 and 3, and by 14.94% and-17.50% from that in example 2 compared with the data in example 3, and the relative percentage of linalyl acetate and furfural in example 2 was changed by 4.72% and-8.33% from that in example 1 compared with the data in example 2 and 1, indicating that ester hydrolysis and Maillard reaction were reduced to some extent when the distillation extraction device in example 2 was used for extraction of essential oils.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims (10)

1. A backflow type water distillation extraction device for plant essential oil comprises a distillation pot body, a condensation pipe and an oil-water separator, wherein a heating mechanism is installed at the bottom of the distillation pot body, the device is characterized by further comprising a flow guide mechanism, a sample tray support is installed in the distillation pot body, the sample tray support divides the interior of the distillation pot body into a steam layer and a solvent layer, a sample tray used for containing distillation raw materials is installed on the sample tray support, a steam outlet is formed in a pot cover of the distillation pot body, the steam outlet is sealed and is connected with a flow guide pipe in an inserted mode, the distillation pot body is communicated with the oil-water separator through the flow guide pipe, an upper port of the oil-water separator is communicated with a lower port of the condensation pipe, a valve is installed at the lower end of the oil-water separator, the flow guide mechanism comprises a liquid receiving device and a drainage pipe which are communicated with each other, the drainage tube leads the fluid in the liquid receiver out of the distillation kettle body.

2. a reflux type water distilling and extracting device for plant essential oil as claimed in claim 1, wherein the outlet end of the drainage tube is inserted into the tube body filled with the solution, and the outlet end of the drainage tube is positioned below the solution surface.

3. A reflux type water distilling and extracting device for plant essential oil as claimed in claim 1, wherein the steam outlet is located at an upper oblique position of the sample tray and is arranged at an offset position with the sample tray.

4. The reflux type water distilling and extracting device for plant essential oil of claim 3, wherein a reflux pipe communicated with the guide pipe is connected to the lower part of the oil-water separator above the valve.

5. The reflux type water distillation and extraction device for plant essential oil as claimed in claim 4, wherein the sample tray support is installed on the inner wall of the distillation pot body, the sample tray support is in a truncated cone structure, and a round hole for clamping the sample tray is formed in the middle of the sample tray support.

6. A reflux type water distilling and extracting device for plant essential oil as claimed in claim 5, wherein the sample tray bracket is provided with a liquid guide pipe near the inner wall of the distilling pot body, and the liquid guide pipe is communicated with the solvent layer.

7. A reflux type water distilling and extracting device for plant essential oil according to any one of claims 1 to 6, wherein the liquid receiver is a cone-shaped funnel, and the outlet end of the cone-shaped funnel is connected with a drainage tube.

8. A backflow type water distillation and extraction device for plant essential oil according to claim 7, wherein the sample tray is a cylinder with an open top and a screen mounted at the bottom, the screen has a mesh number of 40-100 meshes, a circular ring is formed on the outer wall of the circumference of the sample tray, and the circular ring is clamped on the circular hole.

9. the reflux type water distillation and extraction device for plant essential oil of claim 8, wherein the distillation pot body is provided with a material changing port above the sample tray support, and the material changing port is hinged with a sealing door.

10. A reflux type water distilling and extracting device for plant essential oil according to claim 9, wherein the distilling pot body is provided with a water level observation window below the sample tray support.