CN215250700U

CN215250700U - Volatile oil separation extractor and volatile oil collecting device comprising same

Info

Publication number: CN215250700U
Application number: CN202023328802.5U
Authority: CN
Inventors: 易红; 刘晓谦; 王智民; 冯伟红; 杨华
Original assignee: Institute of Materia Medica of CAMS
Current assignee: Institute of Materia Medica of CAMS
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-12-21
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a volatile oil separation extractor and contain its volatile oil collection device. The volatile oil separation extractor comprises: the oil-water separator (1), the top end and the bottom end of the oil-water separator (1) are respectively provided with a condenser interface and a control valve (4); the top end and the bottom end of the steam collecting pipe (2) are respectively provided with a first connecting port and a container connecting port, and the steam collecting pipe (2) is communicated with the oil-water separator (1) through the first connecting ports; and the water circulation return pipe (3), a second connector and a third connector are respectively arranged at two ends of the water circulation return pipe (3), the water circulation return pipe (3) is in fluid communication with the middle of the oil-water separator (1) through the second connector, and the water circulation return pipe (3) is in fluid communication with the steam collecting pipe (2) through the third connector. The extractor can simultaneously extract, separate and measure heavy oil and light oil in the volatile oil.

Description

Volatile oil separation extractor and volatile oil collecting device comprising same

Technical Field

The utility model relates to a volatile oil extraction belongs to the fragrant herbal medicine and draws technical field, concretely relates to can draw volatile oil separator of light oil and heavy oil and contain its volatile oil collection device simultaneously.

Background

The volatile oil is also called essential oil and aromatic oil, and is a general name for a volatile oil component which has aromatic odor, can volatilize at normal temperature, can be distilled with water vapor and is immiscible with water. Widely exists in the whole plant and is unevenly distributed in plant organs such as branches, leaves, barks, trunks, roots, flowers, fruits, seeds and the like. Generally, volatile oils are oily liquids, and a few are solid; the volatile oil has volatility, refractivity and optical activity; the essential oil is a complex composition, and its basic components are terpenoids, aromatic compounds, aliphatic compounds, etc., wherein the terpenes account for the largest proportion and are mainly monoterpenes, sesquiterpenes and their oxygenated derivatives. Therefore, the volatile oil is easy to dissolve in organic solvents such as petroleum ether, diethyl ether, ethanol and the like, and is insoluble or slightly soluble in water.

The volatile oil can be used in medicine, food and cosmetic.

At present, there are many methods for extracting volatile oil from natural herbs, and the following methods are generally used:

1. steam distillation method: the method is simple to operate and low in cost, and is the most common extraction method. Heating fresh or dried aromatic plant material in a distiller to evaporate volatile oil from plant along with steam. The vapor containing volatile oil is collected and cooled by the conduit, and the vapor is cooled to liquid, and then separated according to the difference of specific gravity and density of water and volatile oil. The remaining water is more or less volatile oil dissolved in the water, so called flower water, and most of the volatile oil is extracted by the method. 2. Freezing and compressing method (squeezing method): the method is used for extracting volatile oil stored in peel part. 3. Chemical solvent extraction method: this method is a common extraction method for gums, resins and flower-like volatile oils. 4. Fat separation method (liposuction method): this method is an expensive extraction method of flower volatile oil. 5. Supercritical carbon dioxide extraction method: this method is a very expensive process and contains far more ingredients than the essential oils. 6. The soaking method comprises the following steps: the method comprises soaking flowers in hot oil to release volatile oil, and extracting by filtration.

Compared with the six methods, the most common volatile oil extraction method which is simple to operate and low in cost is the steam distillation method at present. The volatile oil obtained by steam distillation is evaporated together with steam, and the steam containing volatile oil is cooled to obtain liquid after being collected and cooled by a conduit, and then separated according to the specific gravity and density difference of water and volatile oil, so as to obtain pure volatile oil. The volatile oil is classified into light oil and heavy oil according to the comparison of the density of the volatile oil with that of water. Namely: lighter than water is light oil (relative density less than 1.0) and heavier than water is heavy oil (relative density greater than 1.0).

For the extraction of the two volatile oils in the current market, two different devices, namely a light oil extractor and a heavy oil extractor, are respectively adopted, so that different devices are required to be adopted according to the density property of the volatile oil. For industrial production, the disassembly of the instrument is very inconvenient and has serious potential safety hazard. When extracting volatile oil, it is necessary to first know whether the extracted volatile oil is light oil or heavy oil in order to select a suitable separator, and the selected volatile oil is refluxed to a heater. If the relative density is not known, trial extraction is needed to select a proper separator for extraction, and the extraction efficiency is influenced by mistake and the measurement result is inaccurate. Especially, when the compound traditional Chinese medicine is extracted, different medicines may contain light oil and heavy oil at the same time, so that the heavy oil cannot be collected when a light oil separator is adopted during extraction and flows back to a heater; when the heavy oil separator is adopted, light oil cannot be collected and also flows back to the heater, synchronous extraction is difficult to realize, and almost simultaneous consideration cannot be given to the light oil and the light oil separator, which is a great problem in the traditional Chinese medicine industry in recent ten years and is listed as a special subject by the nation for many times to attack. In the practical production and application process, when the volatile oil with the relative density close to 1.0 is extracted, the effluent oil sometimes floats to light oil and sometimes sinks to heavy oil at the bottom due to the relative density being equal to that of water, so that only aromatic water can be obtained, and the volatile oil is difficult to obtain.

For a long time, scholars at home and abroad research and explore a great deal of research and development on extraction and separation of Chinese medicine volatile oil, although the extraction and separation method is continuously improved and improved, devices for extracting heavy oil and light oil are also provided, but most of the extraction and separation method are still in the laboratory research stage, have a plurality of defects and complex structures, and thus cannot be applied industrially.

CN201208517Y discloses a natural herbal light oil heavy oil extractor. During extraction, natural herbal materials and water are heated to boiling in a distiller 1, and water vapor carrying volatile oil is collected through a vapor collecting pipeline 2 and rises to a condensing pipe 3. The condensed oil-water mixture drops into the oil-water separator 4, and oil-water separation is completed. For light oil, the volatile oil is located at the upper layer and the water is located at the lower layer after oil-water separation; at this time, the valve 6 on the water circulation return pipe 5 is opened, and the water in the lower layer flows back to the distiller 1 through the return pipe 5 for recycling. For heavy oil, the volatile oil is positioned at the lower layer and the water is positioned at the upper layer after oil-water separation, at the moment, a valve 6 on a water circulation backflow pipeline is closed, and the water at the upper layer flows back to the distiller 1 through a steam collecting pipe 2 for recycling. The utility model discloses a light oil heavy oil extractor protected has accomplished the difference of light oil and heavy oil through valve 6 and has drawed, but when there are light oil and heavy oil simultaneously in middle of the medicinal material or the traditional chinese medicine compound, this extractor can not realize drawing, separation and survey when light oil and heavy oil.

CN110205203A discloses a volatile oil separation extraction equipment, it includes mixed circulation pipe one and the top and mixed circulation pipe two that mixed circulation pipe one side portion was linked together, the bottom of mixed circulation pipe two be equipped with the flask interface, mixed circulation pipe one top is equipped with the condenser pipe interface, mixed circulation pipe one middle part to bottom top-down have been put through in proper order that light oil collects the pipeline section, buffer tube and heavy oil and collect the pipeline section, the buffer tube lateral part be equipped with the water back flow pipe, heavy oil collect and be equipped with the check valve on the pipeline section. According to the disclosure of the present patent application and referring to fig. 1 of the specification, the height of the communication port between the water return pipe and the second mixing flow pipe is not higher than or corresponding to the bottom of the light oil collecting pipe section, and the above design results in that the light oil separating and extracting apparatus cannot actually extract and separate light oil and cannot accurately measure the content of light oil because light oil cannot be stored in the light oil collecting pipe section 3, and the light oil is returned from the branch pipe to the heating container, and the ratio of D2/D1 is about 0.35 as measured and calculated according to fig. 1.

Therefore, the volatile oil separation and extraction equipment in the prior art mainly has the following defects:

defect one: the equipment is complex, the energy consumption is large, the yield is low, the cost is high, and the requirement of large-scale production is difficult to meet;

and defect two: the simultaneous extraction, separation and measurement of light oil and heavy oil cannot be realized;

and a third defect: the volatile oil is difficult to extract and is seriously lost in the extraction process, so that the extraction rate is low;

and a fourth defect: the extraction rate of the volatile oil with the relative density close to that of water is extremely low.

For the above reasons, further research on the volatile oil separation and extraction equipment is needed to solve the above-mentioned common defects or problems.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model discloses a main aim at provides a volatile oil separator to solve among the current production and the technique common volatile oil separator extraction equipment complicated, the energy consumption is big, the yield is low and with higher costs, can't realize extracting, separation and survey, the volatile oil that relative density and water are close when light oil and heavy oil is difficult to collect the scheduling problem.

In order to achieve the above object, according to one aspect of the present invention, there is provided a volatile oil separating and extracting apparatus including:

the top end and the bottom end of the oil-water separator (1) are respectively provided with a condenser interface and a control valve (4);

the top end and the bottom end of the steam collecting pipe (2) are respectively provided with a first connecting port and a container connecting port, and the steam collecting pipe (2) is communicated with the oil-water separator (1) through the first connecting ports; and

a water circulation return pipe (3), wherein a second connecting port and a third connecting port are respectively arranged at two ends of the water circulation return pipe (3), the water circulation return pipe (3) is in fluid communication with the middle part of the oil-water separator (1) through the second connecting port, the water circulation return pipe (3) is in fluid communication with the steam collecting pipe (2) through the third connecting port,

wherein the distance from the first connecting port to the second connecting port is D1,

wherein the height of the third connecting port is higher than that of the second connecting port, and the difference between the height of the third connecting port and the height of the second connecting port is D2-0.4 × D1-0.7 × D1.

Further, the control valve (4) is a flow control valve.

Further, the condenser is connected with the top end of the oil-water separator (1) through a mouthpiece or a ground.

Further, the condenser is a tube condenser or a coil condenser.

Further, the condenser is a condensing tower or a condensing pipe.

Further, the container is connected with the bottom end of the steam collecting pipe (2) through a mouth piece or a ground.

Further, the container is a steel container or a glass container.

Furthermore, the oil-water separator (1) is provided with scale marks or a visible liquid level window.

Furthermore, a jacket is arranged on the oil-water separator (1), a condensate inlet is arranged at the lower part of the jacket, and a condensate outlet is arranged at the upper part of the jacket.

Further, the condensate outlet is disposed opposite the condensate inlet.

Further, a temperature control system is arranged in the jacket, and the temperature control system is used for setting the temperature of the condensate liquid through an external programmable logic controller.

Furthermore, the included angle between the oil-water separator (1) and the water circulation return pipe (3) is 50-70 degrees.

Further, the distance between the control valve (4) and the second connecting port is D3, and D1: D3 is 1: 0.5-4.

Further, D1: D3 is 1: 0.8-2.

Further, D1: d3 is 1: (0.9-1.2).

Further, D2 ═ 0.45 × D1 to 0.65 × D1.

Further, D2 ═ 0.5 × D1 to 0.6 × D1.

Further, in the oil-water separator (1), the inner diameter between the first connection port and the second connection port is larger than the inner diameter between the control valve (4) and the second connection port.

According to another aspect of the utility model, a volatile oil collection device including above-mentioned volatile oil separator is provided.

Use the technical scheme of the utility model, the utility model discloses a volatile oil separation extractor includes: the top end and the bottom end of the oil-water separator (1) are respectively provided with a condenser interface and a control valve (4); the top end and the bottom end of the steam collecting pipe (2) are respectively provided with a first connecting port and a container connecting port, and the steam collecting pipe (2) is communicated with the oil-water separator (1) through the first connecting ports; and a water circulation return pipe (3), wherein a second connecting port and a third connecting port are respectively arranged at two ends of the water circulation return pipe (3), the water circulation return pipe (3) is in fluid communication with the middle part of the oil-water separator (1) through the second connecting port, the water circulation return pipe (3) is in fluid communication with the steam collecting pipe (2) through the third connecting port, the distance from the first connecting port to the second connecting port is D1, the height of the third connecting port is higher than that of the second connecting port, and the difference between the height of the third connecting port and that of the second connecting port is D2-0.4 × D1-0.7 × D1. The volatile oil separation extractor is reasonable in design and simple in structure, can simultaneously extract, separate and measure the heavy oil and the light oil in the volatile oil, can be widely applied to extraction of various aromatic oils, not only meets the requirements of experimental research, but also meets the requirements of large-scale production, and therefore the problems that common volatile oil separation extraction equipment is complex, high in energy consumption, low in yield, high in cost, and low in extraction rate and the volatile oil extraction rate is low due to the fact that the light oil and the heavy oil cannot be simultaneously extracted, separated and measured, the volatile oil is difficult to extract, and the loss is serious in the extraction process are solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without exceeding the protection scope of the present application.

Fig. 1 is a schematic structural view of an embodiment of the volatile oil separation extractor of the present application.

The scores in the figures are as follows: 1-oil-water separator; 2-a steam collecting pipe; 3-water circulation return pipe; 4-control valve.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present invention, it is to be understood that the terms "middle", "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the equipment or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail with reference to examples.

The present invention is described in further detail below with reference to specific examples, which should not be construed as limiting the scope of the invention as claimed.

As described in the background art, the existing volatile oil separation and extraction equipment is complex, has high energy consumption, low yield and high cost, cannot realize simultaneous extraction, separation and measurement of light oil and heavy oil, is difficult to extract volatile oil, and has serious loss in the extraction process, thereby causing the problems of low extraction rate and lower extraction rate of volatile oil with relative density close to 1. In order to solve the above problem, the utility model provides a volatile oil separation extractor, it includes:

the device comprises an oil-water separator 1, wherein a condenser interface and a control valve 4 are respectively arranged at the top end and the bottom end of the oil-water separator 1;

the top end and the bottom end of the steam collecting pipe 2 are respectively provided with a first connecting port and a container connecting port, and the steam collecting pipe 2 is in fluid communication with the oil-water separator 1 through the first connecting ports; and

a water circulation return pipe 3, wherein a second connecting port and a third connecting port are respectively arranged at two ends of the water circulation return pipe 3, the water circulation return pipe 3 is in fluid communication with the middle part of the oil-water separator 1 through the second connecting port, the water circulation return pipe 3 is in fluid communication with the steam collecting pipe 2 through the third connecting port,

The utility model discloses a volatile oil separation extractor reasonable in design, simple structure can draw simultaneously, separates and survey heavy oil and light oil in the volatile oil, but wide application in the extraction of various fragrant oils both satisfies experimental research needs, satisfies the requirement of scale production again. When D2 < 0.4 xd 1, it will cause light oil to flow into the container along the water circulation return pipe 3 together with water, and light oil cannot be collected efficiently. When D2 is more than 0.7 multiplied by D1, on one hand, the steam circulation path is increased, the steam reaches the main collecting pipe, part of the steam flows back to the heater when meeting the cold, and the extraction efficiency is reduced; on the other hand, the height of the equipment (namely the two branch pipes D1 and D2) is obviously increased, so that the equipment cost is increased and the operation is influenced.

In a preferred embodiment, the control valve 4 is a flow control valve. The flow control valve has the advantages of high control sensitivity, safety, reliability, simple and convenient debugging and long service life. The flow control valve is a visual and simple flow regulation control device, the valve can automatically eliminate residual pressure heads of pipelines and flow deviation caused by pressure fluctuation under the action of liquid, set flow is kept unchanged no matter how the system pressure changes, the functions of the valve enable pipe network flow regulation to be completed at one time, the net regulation work is changed into simple flow distribution, and liquid imbalance of the pipe network is effectively solved.

In a preferred embodiment, the condenser is connected to the top end of the oil-water separator 1 by a mouthpiece or a ground. A mouthpiece or burr or other type of connector or attachment conventional in the art is suitable for connecting the condenser to the top end of the oil-water separator 1. Wherein, the ground connection does not need to use the gasket, can avoid the gasket to lose efficacy or emit the problem of harmful substance under high temperature usually exists.

In a preferred embodiment, the condenser is a tube and coil condenser. In the tube array condenser, cold fluid flows downwards from the top to the bottom of the tube side of the equipment, the flow is large, the flow speed is high, and the heat transfer coefficient of the tube array condenser is high; the high flow rate of the cold fluid also determines that the cleanliness requirement of the equipment on the cold fluid is not high. In the coil pipe condenser of this application, can realize condensation and liquid equipartition effect simultaneously, and the condensation is effectual, and liquid distribution is even, simple structure. Other condensers conventional in the art are suitable for use in this application.

In a preferred embodiment, the condenser is a condensation column or a condensation tube. The condensation tower is an industrial device which uses water as a circulating coolant, absorbs heat from a system and discharges the heat to the atmosphere so as to reduce the water temperature; the evaporative heat dissipation device utilizes the principles that water is in contact with air in a flowing manner and then carries out heat exchange to generate steam, the steam volatilizes and takes away heat to achieve evaporative heat dissipation, convection heat transfer, radiation heat transfer and the like to dissipate waste heat generated in industry or refrigeration air conditioners to reduce the water temperature, and therefore the normal operation of the system is guaranteed. The utility model provides a condenser pipe is for utilizing the heat exchange principle to make the condensation nature gas cooling condense the laboratory paraphernalia for liquid, plays condensation or backward flow effect, and two outer glass tubes are constituteed in often by one, and less glass tube runs through great glass tube.

In a preferred embodiment, the container is connected to the bottom end of the vapor collection tube 2 by a mouthpiece or mill. A mouthpiece or burr or other type of connector or attachment conventional in the art is suitable for connecting the container to the bottom end of the vapor collection tube 2. Wherein, the ground connection does not need to use the gasket, can avoid the gasket to lose efficacy or emit the problem of harmful substance under high temperature usually exists.

In a preferred embodiment, the container is a steel container or a glass container. The container of the present application is capable of storing a substance to be extracted, such as a herbal medicine, and a solvent, such as water.

In a preferred embodiment, the oil-water separator 1 is provided with a scale mark or a visible liquid level window. On the oil water separator 1 of this application, all be equipped with the scale sign between first connector to second connector and between control valve 4 to second connector to can accurately conveniently read the light oil volume between first connector to second connector and the heavy oil volume between control valve 4 to second connector, convenience directly perceived more. Alternatively, the oil-water separator 1 of the present invention has a visible liquid level window, and can observe the separation of light oil and heavy oil in real time.

In order to better realize oil-water separation and avoid the volatile oil from generating chemical changes due to long-time high temperature to obtain higher-quality volatile oil, in a preferred embodiment, the oil-water separator 1 is provided with a jacket, the lower part of the jacket is provided with a condensate inlet, and the upper part of the jacket is provided with a condensate outlet.

In order to increase the convection of the condensate and to better achieve the cooling effect of the condensate, in a preferred embodiment the condensate outlet is arranged opposite the condensate inlet.

In a preferred embodiment, a temperature control system is arranged in the jacket, and the temperature control system controls the temperature of the condensate through an external Programmable Logic Controller (PLC) so as to control the temperature reduction rate more efficiently and energy-effectively. The time and the condensate temperature can be set online by adopting the control of a touch screen PLC, PV is the set temperature, SV is the actual temperature, a timer starts to time when the PV temperature reaches the SV set value, and the equipment gives an alarm and stops working after the timer reaches the set time.

In order to extract light oil and heavy oil simultaneously, in a preferred embodiment, the included angle between the oil-water separator 1 and the water circulation return pipe 3 is 50-70 degrees. When the above angle is more than 70 degrees, it may cause light oil to flow into the tank along the water circulation return pipe 3 together with water, thereby failing to efficiently collect light oil. When the angle is less than 50 degrees, the volatile oil and the water vapor in the vapor collection pipe 2 are difficult to rise, so that the light oil and the heavy oil cannot be effectively collected.

In order to further realize the simultaneous extraction of light oil and heavy oil, in a preferred embodiment, the distance from the control valve 4 to the second connecting port is D3, and D1: D3 is 1: 0.5-4. When the above ratio is more than 1: 0.5, it will result in a heavy oil collecting space too small to be easily discharged into the container together with water along the water circulation return pipe 3, thereby failing to effectively collect the heavy oil. When the ratio is less than 1: 4, the heavy oil collecting space is too large, the whole equipment is lengthened, and the inconvenience and the waste of the equipment are caused.

In order to further improve the extraction rate of the light oil and the heavy oil extracted simultaneously, in a preferred embodiment, D1: D3 is 1: 0.8-2.

In order to further improve the extraction rate of the light oil and the heavy oil extracted simultaneously, in a preferred embodiment, D1: D3 is 1: 1 (0.9-1.2).

In order to further enhance the extraction rate of the simultaneous extraction of light oil and heavy oil, in a preferred embodiment, D2 is 0.45 × D1 to 0.65 × D1.

In order to further enhance the extraction rate of the simultaneous extraction of light oil and heavy oil, in a preferred embodiment, D2 ═ 0.5 × D1 to 0.6 × D1.

In a preferred embodiment, in the oil water separator 1, the inner diameter between the first connection port and the second connection port is larger than the inner diameter between the control valve 4 and the second connection port. The above-described design makes it difficult for the heavy oil to stay at the second connection port, and the heavy oil can smoothly flow into the bottom of the oil-water separator 1, thereby achieving effective separation of the light oil and the heavy oil.

According to another aspect of the utility model, a volatile oil collection device including above-mentioned volatile oil separator is provided. The application of performance oil collection device to oil-water mixture's separation efficiency height, can improve the yield of volatile oil. The volatile oil collecting device mainly comprises three parts, namely an oil-water separator for extracting volatile oil, a condenser and an extracting container. The principle of realizing the extraction of the volatile oil is that the volatile oil is evaporated out along with water vapor in the extraction process, and the volatile oil is obtained by realizing oil-water separation in an oil-water separator after being cooled in a condenser.

The following describes embodiments of the present application in further detail with reference to fig. 1. As shown in fig. 1, the volatile oil separating and extracting device comprises: the device comprises an oil-water separator 1, wherein a condenser interface and a control valve 4 are respectively arranged at the top end and the bottom end of the oil-water separator 1; the top end and the bottom end of the steam collecting pipe 2 are respectively provided with a first connecting port and a container connecting port, and the steam collecting pipe 2 is in fluid communication with the oil-water separator 1 through the first connecting ports; and a water circulation return pipe 3, wherein a second connection port and a third connection port are respectively arranged at two ends of the water circulation return pipe 3, the water circulation return pipe 3 is in fluid communication with the middle part of the oil-water separator 1 through the second connection port, the water circulation return pipe 3 is in fluid communication with the steam collection pipe 2 through the third connection port, the distance from the first connection port to the second connection port is D1, the height of the third connection port is higher than that of the second connection port, and the difference between the height of the third connection port and that of the second connection port is D2-0.4 × D1-0.7 × D1. According to the volatile oil collecting device for simultaneously extracting the light oil and the heavy oil, when the volatile oil is extracted, plants or natural medicines or Chinese herbal medicines and water are heated to boiling in a flask, and water vapor carrying the volatile oil is collected through a vapor collecting pipe and rises to a condensing pipe. The condensed oil-water mixture drops into the oil-water separator to complete oil-water separation. The light oil is positioned on the upper layer (above the second connector) after oil-water separation, the juncture of the light oil and the water is positioned on the upper middle part between the first connector and the second connector, the juncture of the heavy oil and the water is positioned below the second connector, and the scale marks are arranged on the upper surface and the lower surface of the second connector, namely penetrating through the whole oil-water separator, so that the content change of the light oil and the heavy oil can be monitored at any time; the lower end of the oil-water separator is provided with a liquid outlet, and the heavy oil and the light oil obtained by extraction and separation can be conveniently taken out in sequence by opening or closing the control valve.

The following are examples of extraction of light oil and heavy oil in natural herbal materials using the extractor for simultaneously extracting light oil and heavy oil of the present application, the prior art conventional volatile oil extractor for extracting light oil, and the prior art conventional volatile oil extractor for extracting heavy oil:

example extraction of clove volatile oil

The volatile oil collecting device for simultaneously extracting the light oil and the heavy oil is adopted to extract the volatile oil of the clove buds, and specifically, 1000g of the clove buds are taken, 3000ml of water is added, the mixture is heated and slightly boiled, and after extraction is carried out for 6 hours, the mixture is kept stand and read. The conventional heavy oil extractor in the prior art is adopted for extraction, and the operation is the same as above. The results are shown in Table 1. The relative density of the obtained volatile oil was determined to be 1.05.

TABLE 1 comparison of the oil-extracting effects of three kinds of volatile oil extractors

As can be seen from the results in Table 1, the oil yield of the two extractors is similar, the extraction efficiency of the novel oil-water separator is slightly superior to that of the conventional heavy oil volatile oil separator, and the novel oil-water separator can be used for extracting heavy oil volatile oil.

Example extraction of essential oil of Mentha arvensis

Adopt the volatile oil collection device who is used for extracting light oil and heavy oil simultaneously of this application to extract the volatile oil of peppermint, specifically, get peppermint 1000g, add 5000ml water, the heating boils a little, after extracting 4 hours, the tapping makes the volatile oil place the scale scope in, stews, and the reading adopts the conventional light oil extractor of prior art to extract, and the operation is the same as above. The results are shown in Table 2. The relative density of the obtained volatile oil was determined to be 0.89.

TABLE 2 comparison of oil-extracting effects of three kinds of volatile oil extractors

As can be seen from the results in Table 2, the oil yield of the two extractors is similar, the extraction efficiency of the novel oil-water separator is slightly superior to that of the conventional light oil-water separator, and the novel oil-water separator can be used for extracting the volatile oil of light oils.

Example extraction of volatile oil of Saussureae radix

Adopt the volatile oil collection device who is used for extracting light oil and heavy oil simultaneously of this application to extract the volatile oil of aucklandiae, specifically, take 1000g of aucklandiae, add 3000ml water, heat the microboiling, after extracting 8 hours, the tapping makes the liquid level place scale range, and the reading is stood. The conventional light oil extractor in the prior art is adopted for extraction, and the operation is the same as above. The conventional heavy oil extractor in the prior art is adopted for extraction, and the operation is the same as above. The results are shown in Table 3. The relative density of the obtained volatile oil was determined to be 1.02.

TABLE 3 comparison of the oil-extracting effects of three kinds of volatile oil extractors

As can be seen from the results in Table 3, the extraction efficiency of the novel volatile oil-water separator is far higher than that of the conventional volatile oil separator, and the novel volatile oil-water separator can be used for extracting volatile oil with the relative density similar to that of water.

EXAMPLE four extraction of Mixed volatile oils (homogeneous)

The volatile oil collecting device for simultaneously extracting the light oil and the heavy oil is adopted to extract the volatile oil of the fructus forsythiae, the mint and the sweet wormwood herb, and specifically, 300g of the fructus forsythiae, the mint and the sweet wormwood herb are respectively taken, 5400ml of water is added, the mixture is heated and slightly boiled, after 4 hours of extraction, the volatile oil is placed in a scale range through liquid discharge, and the mixture is stood and read. The conventional light oil extractor in the prior art is adopted for extraction, and the operation is the same as above. The results are shown in Table 4. The relative density of the obtained volatile oil is 0.88.

TABLE 4 comparison of oil-extracting effects of three kinds of volatile oil extractors

Because the relative density of volatile oil contained in fructus forsythiae, herba Menthae and herba Artemisiae Annuae is less than 1.0 and about 0.9, the mixed oil floats on the liquid surface during extraction process, and light oil state is displayed. As can be seen from the results in Table 4, the oil yield of the two extractors is the same, and the extraction efficiency of the novel volatile oil separator is not lower than that of the conventional light oil volatile oil separator, so that the novel volatile oil separator can be used for extracting mixed light oil volatile oil.

EXAMPLE five extraction of Mixed volatile oils (heterogenous)

Adopt the volatile oil collection device who is used for extracting light oil and heavy oil simultaneously of this application to extract the volatile oil of cassia twig, chinese angelica, take each 250g of cassia twig, chinese angelica, add 1500ml water, the heating boils a little, and after extracting 6 hours, extraction tube liquid level and bottom all have the volatile oil, can carry out direct reading on the extraction tube, also can all discharge and place in the graduated flask, and the standing is read. Extracting the volatile oil of the cassia twig and the angelica by adopting a conventional light oil extractor in the prior art, and the operation is the same as the above. Extracting the volatile oil of the cassia twig and the angelica by adopting a conventional heavy oil extractor in the prior art, and the operation is the same as the above. The results are shown in Table 5.

TABLE 5 comparison of oil-extracting effects of three kinds of volatile oil extractors

As can be seen from the results of table 5, the collection effect of the novel volatile oil-water separator for simultaneously extracting light oil and heavy oil of the present application is much higher than that of the conventional heavy oil-light oil separator. The literature suggests that the proportion of the cassia twig volatile oil is 1.055-1.070, the proportion of the angelica volatile oil is 0.9360-0.9800, and one of the cassia twig volatile oil and the angelica volatile oil is light oil and the other is heavy oil, so that the extraction difficulty is high and the yield is low by using a conventional light oil separator and a conventional heavy oil separator in the prior art. Aiming at the same raw medicinal materials (250 g of cassia twig and angelica respectively), after the extraction is carried out in the same time period (6 hours), the volatile oil amount (2.1 ml) extracted by the novel volatile oil water separator for simultaneously extracting light oil and heavy oil is obviously greater than the volatile oil amount (0.2ml) extracted by the conventional light oil separator in the prior art and the volatile oil amount (1.2ml) extracted by the conventional heavy oil separator in the prior art, so the yield of the novel volatile oil water separator for simultaneously extracting light oil and heavy oil is obviously improved, the loss of volatile oil in the extraction process can be avoided, and the novel volatile oil water separator is particularly suitable for the extraction, separation and determination of the volatile oil mixture with high viscosity and relative density close to 1 in the traditional Chinese medicine compound.

EXAMPLE six extraction of Mixed volatile oils (heterogenous)

Adopt the volatile oil collection device who is used for extracting light oil and heavy oil simultaneously of this application to extract the volatile oil of cassia twig, chinese mugwort leaf, take each 250g of cassia twig, chinese mugwort leaf, add 2000ml water, the heating boils a little, and after extracting 4 hours, extraction tube liquid level and bottom all have the volatile oil, can carry out direct reading on the extraction tube, also can all discharge and place in the graduated flask, stew, the reading. Extracting the volatile oil of the cassia twig and the folium artemisiae argyi by adopting a conventional light oil extractor in the prior art, and the operation is the same as the above. Extracting the volatile oil of the cassia twig and the folium artemisiae argyi by adopting a conventional heavy oil extractor in the prior art, and the operation is the same as the above. The results are shown in Table 6.

TABLE 6 comparison of oil-extracting effects of three kinds of volatile oil extractors

As can be seen from the results of table 6, the novel volatile oil-water separator for simultaneously extracting light oil and heavy oil of the present application has a much higher collecting effect than the conventional heavy oil-light oil separator. The literature indicates that the proportion of the cassia twig volatile oil is 1.055-1.070, the proportion of the folium artemisiae argyi volatile oil is 0.8990-0.9190, and the two are light oil and heavy oil, so that the extraction difficulty is high and the yield is low by using a conventional light oil separator and a conventional heavy oil separator in the prior art. Aiming at the same raw medicinal materials (250 g of cassia twig and folium artemisiae argyi respectively), after the extraction is carried out in the same time period (4 hours), the volatile oil amount (3.6ml) extracted by the novel volatile oil water separator for simultaneously extracting light oil and heavy oil is obviously greater than the volatile oil amount (1.2ml) extracted by the conventional light oil separator in the prior art and the volatile oil amount (2.0ml) extracted by the conventional heavy oil separator in the prior art, so that the yield of the novel volatile oil water separator for simultaneously extracting light oil and heavy oil is obviously improved, the loss of volatile oil in the extraction process can be avoided, and the novel volatile oil water separator is particularly suitable for the extraction, separation and determination of volatile oil mixtures with high viscosity and relative density close to 1 in a Chinese herbal compound.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the scope of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the description of the embodiments is only intended to facilitate the understanding of the methods and their core concepts of the present application. Meanwhile, a person skilled in the art should, according to the idea of the present application, change or modify the embodiments and applications of the present application based on the scope of the present application. In view of the above, the description should not be taken as limiting the application.

Claims

1. A volatile oil separating and extracting device is characterized by comprising:

the oil-water separator (1), the top end and the bottom end of the oil-water separator (1) are respectively provided with a condenser interface and a control valve (4);

wherein the height of the third connecting port is higher than that of the second connecting port, and the difference between the height of the third connecting port and that of the second connecting port is 0.4 × D1 to 0.7 × D1, where D2 is equal to the height of the second connecting port.

2. The volatile oil separation extractor according to claim 1, wherein the control valve (4) is a flow control valve.

3. The volatile oil separating and extracting device as claimed in claim 1, characterized in that the condenser is connected with the top end of the oil-water separator (1) through a mouthpiece or a ground.

4. The volatile oil separation extractor of claim 3 wherein the condenser is a tube-in-tube condenser or a coil condenser.

5. The volatile oil separation extractor of claim 3, wherein the condenser is a condensing tower or a condensing tube.

6. The volatile oil separation extractor of claim 1, wherein the container is connected to the bottom end of the vapor collection tube (2) by a mouthpiece or mill.

7. The volatile oil separating and extracting device as claimed in claim 6, wherein the container is a steel container or a glass container.

8. The volatile oil separating and extracting device according to claim 1, wherein the oil-water separator (1) is provided with scale marks or a visible liquid level window.

9. The volatile oil separating and extracting device according to claim 1, wherein the oil-water separator (1) is provided with a jacket, the lower part of the jacket is provided with a condensate inlet, and the upper part of the jacket is provided with a condensate outlet.

10. A volatile oil separation extractor as claimed in claim 9, wherein the condensate outlet is located on an opposite side of the condensate inlet.

11. The volatile oil separating and extracting device of claim 9, wherein a temperature control system is arranged inside the jacket, and the temperature control system controls the temperature of the condensate through an external programmable logic controller.

12. The volatile oil separating and extracting device of claim 1, wherein an included angle between the oil-water separator (1) and the water circulation return pipe (3) is 50-70 degrees.

13. The volatile oil separating and extracting device as claimed in claim 1, wherein the distance from the control valve (4) to the second connecting port is D3, D1: D3 ═ 1 (0.5-4).

14. The volatile oil separating and extracting device of claim 13, wherein D1 is D3 is 1 (0.8-2).

15. The volatile oil separating and extracting device of claim 13, wherein D1 is D3 is 1 (0.9-1.2).

16. The apparatus as claimed in claim 1, wherein D2 is 0.45 XD 1 to 0.65 XD 1.

17. The volatile oil separator according to claim 16 wherein D2 is 0.5 x D1 to 0.6 x D1.

18. The volatile oil separating and extracting device according to claim 1, wherein an inner diameter between the first connection port and the second connection port is larger than an inner diameter between the control valve (4) and the second connection port in the oil-water separator (1).

19. A volatile oil collection apparatus comprising a volatile oil separation extractor according to any one of claims 1 to 18.