A device for efficiently extracting flavor substances from wine

Abstract

The present invention discloses a device for efficiently extracting flavor substances of wine in the field of extraction technology, comprising a cover body, an inner cylinder and an outer cylinder, an air inlet pipe is arranged above the side wall of the outer cylinder, the input end of the air inlet pipe is tangent to the side wall of the outer cylinder, a plurality of one-way air inlet channels are arranged on the side wall of the inner cylinder, a plurality of partitions are arranged on the inner cylinder, the partitions divide the inner cylinder into a plurality of independent extraction chambers, an exhaust pipe is connected to the side wall of the extraction chamber, the exhaust pipe passes through the side wall of the outer cylinder and is connected to an analysis instrument, and a heating component is arranged in the inner cylinder. This scheme utilizes the relationship between pressure and temperature on the solubility of supercritical fluids, selectively extracts flavor components of polarity, boiling point and molecular weight in the wine sample in sequence, the extraction efficiency is improved under the synchronous action of temperature and pressure, and a plurality of wine raw materials can be extracted simultaneously by setting a plurality of extraction chambers, further improving the extraction efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of extraction, and in particular relates to a device for efficiently extracting flavor substances of wine. Background Art

[0002] Baijiu is a distilled liquor unique to China and one of the eight major distilled liquors in the world. It occupies a unique cultural and economic position in China's long history. The brewing of baijiu has a history of thousands of years. Baijiu can be divided into solid-state liquor, semi-solid-state liquor and liquid-state liquor according to the brewing method. For a long time, solid-state fermentation liquor has been the most popular type of liquor and is also the type of liquor that accounts for the majority of famous and high-quality liquors. Among various types of liquor, its components are mainly composed of water and ethanol, accounting for 98-99% of the total, and the remaining 1-2% of the components are the aroma and flavor substances of liquor, which are important components that determine the style and quality of liquor. Its specific composition is relatively complex, including esters, aldehydes, ketones, alcohols, acids and other trace organic substances. These flavor substances not only have different molecular structures, but also their physical and chemical properties are different. Nearly a thousand kinds of aroma substances have been discovered. Research on the flavor components in liquor is one of the hot spots in liquor research.

[0003] The analysis of flavor components of wine includes pretreatment and component analysis. Pretreatment is to extract the flavor components in the wine. At present, the methods of wine pretreatment mainly use direct injection method, solvent extraction and solvent-assisted evaporation combined method.

[0004] For example, a Chinese patent with publication number CN111579656A discloses a pretreatment device and method for extracting flavor components from alcoholic or beverage products, the device comprising a gas carrier chamber, the gas carrier chamber being divided into a membrane upstream space and a membrane downstream space by a hydrophobic pervaporation membrane; a preheating chamber; a gas cylinder; a first cold trap, the first cold trap comprising an ice-salt water bath and a U-shaped tube immersed in the ice-salt water bath; a second cold trap, the second cold trap comprising a liquid nitrogen bath and a U-shaped tube immersed in the liquid nitrogen bath; and a third cold trap, the third cold trap comprising a liquid nitrogen bath and a U-shaped tube immersed in the liquid nitrogen bath.

[0005] This patent uses cold traps with different temperature ranges and solvent-assisted evaporation to achieve graded collection of samples. The device takes a long time to gradually reach the extraction temperature of flavor components, and the extraction efficiency is difficult to further improve. Therefore, we proposed a device for efficiently extracting flavor substances from wine. Summary of the invention

[0006] In order to solve the above problems, the purpose of the present invention is to provide a device for efficiently extracting flavor substances from wine, so as to shorten the extraction heating time of the flavor substances by combining pressure and temperature, thereby improving the extraction efficiency.

[0007] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a device for efficiently extracting flavor substances from wine, comprising a cover body, an inner cylinder and an outer cylinder, the upper part of the side wall of the outer cylinder is connected with an air inlet pipe, the input end of the air inlet pipe is tangent to the side wall of the outer cylinder, the side wall of the inner cylinder is connected with a plurality of air inlet channels, the air inlet channels are tangent to the side wall of the inner cylinder, the inner cylinder is provided with a plurality of partitions, the partitions are evenly arranged along the vertical direction of the inner cylinder, the partitions divide the inner cylinder into a plurality of independent extraction chambers, the side wall of the extraction chamber is connected with an exhaust pipe, a one-way throttle valve is installed on the exhaust pipe, the exhaust pipe passes through the side wall of the outer cylinder, and is connected with an analytical instrument, an integrally formed heat pipe is provided at the bottom center of the outer cylinder, a heating assembly is installed in the heat pipe.

[0008] The principle of this scheme is as follows: the supercritical fluid is pumped into the outer cylinder tangentially through the air inlet pipe. Using the cyclone principle, the inner wall of the outer cylinder of the supercritical fluid rotates at a high speed, and generates heat by friction with the inner wall of the outer cylinder and the outer wall of the inner cylinder, so as to preheat the extraction chamber and make the low-boiling point flavor substances in the wine evaporate in advance and enter the analytical instrument along the exhaust pipe for analysis; the supercritical fluid between the inner cylinder and the outer cylinder cuts into the inner cylinder through the air inlet channel. Using the supercritical extraction principle, the supercritical fluid contacts the wine to be extracted, so that the supercritical fluid extracts the flavor components of polarity, boiling point and molecular weight in the wine in turn. As the amount of supercritical fluid pumped into the inner cylinder increases, the pressure in the extraction chamber increases. Since the temperature and pressure are positively correlated in the closed space, the extraction temperature in the extraction chamber increases with the increase of pressure, so that the extraction temperature in the extraction chamber can reach the target extraction temperature of the flavor substances as soon as possible to shorten the extraction time.

[0009] The following beneficial effects are achieved by adopting the above scheme:

[0010] 1. This solution generates heat through friction of supercritical fluid swirl to preheat the extraction chamber, extract and evaporate low-boiling point flavor substances, and at the same time, utilizes the relationship between pressure and temperature on the solubility of supercritical fluid to selectively extract flavor components of polarity, boiling point and molecular weight in the wine sample in sequence. Under the synchronous action of temperature and pressure, the time to reach the target extraction temperature is shortened, thereby improving the extraction efficiency;

[0011] 2. The supercritical fluid enters the extraction chamber through the air inlet channel, so that the supercritical fluid pumped into the extraction chamber contacts the wine to be extracted in a swirling motion state, which promotes the collision between the supercritical fluid and the wine, increases the molecular activity of the flavor substances, and improves the extraction efficiency of the flavor substances;

[0012] 3. By setting up multiple extraction chambers, the flavor substances of various types of wine can be extracted at the same time, further improving the extraction efficiency;

[0013] 4. The one-way throttle valve can control the discharge flow rate of flavor substances extracted from different extraction chambers.

[0014] Furthermore, a guide plate is fixedly connected to the inner wall of the outer cylinder, and the guide plate is spiral-shaped.

[0015] Beneficial effect: A guide plate is arranged between the outer cylinder and the inner cylinder, and the spiral guide plate divides the space formed between the outer cylinder and the inner cylinder into a number of interconnected chambers, thereby preventing the supercritical fluid from being separated from the gas and liquid in advance due to the decrease in pressure, ensuring that the supercritical fluid is in a supercritical state before entering the extraction chamber, and the extraction chamber can be constantly preheated.

[0016] Furthermore, a through hole is provided on the partition, and the partition can be sleeved on the heat-conducting pipe through the through hole, and the partition is detachably connected to the inner wall of the inner tube.

[0017] Beneficial effects: The partition plate is detachably connected to the inner cylinder, which is convenient for extracting different wine samples at the same time.

[0018] Furthermore, a first sealing ring is provided between the partition and the inner wall of the inner tube, and a second sealing ring is provided between the partition and the heat conducting pipe.

[0019] Beneficial effect: The first sealing ring and the second sealing ring improve the sealing performance of the extraction chamber, and prevent the gas and liquid between different extraction chambers from flowing back and forth, thereby affecting the accuracy of extraction.

[0020] Furthermore, a baffle is provided in the air inlet passage, one end of the baffle is hinged to the side wall of the air inlet passage through a torsion spring, and one end of the baffle away from the torsion spring is inclined toward the extraction chamber.

[0021] Beneficial effect: The end of the baffle away from the torsion spring is inclined toward the extraction chamber, so that the supercritical fluid can only enter the extraction chamber in one direction, thereby preventing the gas in the extraction chamber from flowing to the outer cylinder and affecting subsequent analysis results.

[0022] Furthermore, the heating assembly includes a plurality of parallel heating plates, and the heating plates are evenly arranged vertically along the inner wall of the heat conducting pipe.

[0023] Beneficial effect: The heating plates are arranged vertically in parallel along the heat conducting tubes, and the temperatures of different extraction chambers can be changed respectively.

[0024] Furthermore, a plurality of first comb teeth are provided on the upper side wall of the outer tube, and a plurality of second comb teeth are provided on the inner side wall of the cover body, and the first comb teeth can mesh with the second comb teeth.

[0025] Beneficial effect: The outer cylinder is sealed by the comb-teeth sealing principle. Every time the air flow passes through a tooth, the pressure is reduced. Moreover, as the specific volume of the flowing gas continues to increase, the speed of passing through the gap continues to accelerate. Therefore, the pressure drop increases as it passes through a tooth downstream, until the pressure approaches the back pressure, thus avoiding the pressure difference in the cylinder before and after sealing affecting the supercritical fluid state.

[0026] Furthermore, the thickness of the first comb teeth is twice the thickness of the second comb teeth.

[0027] Beneficial effect: The thickness of the first comb teeth is thicker than that of the second comb teeth, so that when the cover body closes the outer cylinder, the first comb teeth can provide support for the second comb teeth, thereby preventing the first comb teeth from being damaged due to insufficient support force and affecting the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 2 is a cross-sectional view of an extraction device according to an embodiment of the present invention.

[0029] Figure 2 2 is a cross-sectional view of an outer cylinder according to an embodiment of the present invention.

[0030] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0031] Figure 4 for Figure 1 Enlarged view of point B in the middle. DETAILED DESCRIPTION

[0032] The following is further described in detail through specific implementation methods:

[0033] The figure marks in the drawings of the specification include: cover body 1, one-way throttle valve 2, exhaust pipe 3, inner tube 4, heat pipe 5, outer tube 6, guide plate 7, partition 8, intake pipe 9, intake channel 10, first comb teeth 11, second comb teeth 12, baffle 13.

[0034] Embodiment 1:

[0035] The embodiment is basically as shown in the attached Figure 1-Figure 4 As shown:

[0036] A device for efficiently extracting flavor substances from wine comprises a cover body 1, an inner cylinder 4 and an outer cylinder 6. An air inlet pipe 9 is connected to the upper part of the side wall of the outer cylinder 6. The input end of the air inlet pipe 9 is tangent to the side wall of the outer cylinder 6. The side wall of the inner cylinder 4 is connected to a plurality of air inlet channels 10. The air inlet channels 10 are tangent to the side wall of the inner cylinder 4. The inner cylinder 4 is provided with a plurality of partitions 8. The partitions 8 are evenly arranged along the vertical direction of the inner cylinder 4. The partitions 8 divide the inner cylinder 4 into a plurality of independent extraction chambers. An exhaust pipe 3 is connected to the side wall of the extraction chamber. A one-way throttle valve 2 is installed on the exhaust pipe 3. The exhaust pipe 3 passes through the side wall of the outer cylinder 6 and is connected to an analytical instrument. An integrally formed heat pipe 5 is provided at the bottom center of the outer cylinder 6. A heating component is installed in the heat pipe 5.

[0037] Specific implementation process:

[0038] S1. The pre-treated wine samples to be tested are placed layer by layer into the extraction chamber, the cover body 1 is covered on the outer cylinder 6, and the extraction device is vacuumed to prevent impurities in the air in the extraction device from affecting the extraction results.

[0039] S2, extraction stage: close the one-way throttle valve 2, and the supercritical fluid is pumped tangentially into the outer cylinder 6 through the air inlet pipe 9, forming a flow space between the outer cylinder 6 and the inner cylinder 4. In this scheme, the supercritical fluid is preferably supercritical CO2. By utilizing the cyclone principle, the supercritical fluid rotates at high speed along the flow space, and generates heat by friction with the inner wall of the outer cylinder 6 and the outer wall of the inner cylinder 4, so as to preheat the extraction chamber, so that the low-boiling point flavor substances in the wine can be evaporated in advance and enter the analysis instrument along the exhaust pipe 3 for analysis.

[0040] At this time, the one-way throttle valve 2 is closed, and the heating component is turned on to increase the temperature. The air inlet channel 10 cuts into the extraction chamber, so that the supercritical fluid pumped into the extraction chamber contacts the wine to be extracted in a swirling state, which promotes the collision of the supercritical fluid and the wine, increases the molecular activity of the flavor substances, and improves the extraction efficiency of the flavor substances. As the amount of supercritical fluid pumped into the inner cylinder 4 increases, the pressure in the extraction chamber increases. Since the temperature and pressure are positively correlated in the confined space, the extraction heating rate in the extraction chamber increases with the increase of pressure, so that the extraction temperature in the extraction chamber can reach the target extraction temperature of the flavor substances as soon as possible, thereby shortening the extraction time.

[0041] According to the extraction scheme of different wine samples, the flow rate of the one-way throttle valve 2 is controlled, and the extracted flavor components enter the analytical instrument from the exhaust pipe 3 in turn according to their density for analysis. The layered extraction chamber can extract the wine raw materials at the same time, further improving the extraction efficiency.

[0042] Embodiment 2:

[0043] The difference from the above embodiment is that, Figure 1 As shown: the inner wall of the outer cylinder 6 is fixedly connected with a guide plate 7, and the guide plate 7 is spiral.

[0044] The specific implementation process is as follows:

[0045] A guide plate 7 is arranged between the outer tube 6 and the inner tube 4. The spiral guide plate 7 divides the space formed between the outer tube 6 and the inner tube 4 into a plurality of interconnected chambers, thereby preventing the supercritical fluid from being separated from the gas and liquid in advance due to the decrease in pressure, ensuring that the supercritical fluid is in a supercritical state before entering the extraction chamber, and being able to preheat the extraction chamber constantly.

[0046] Embodiment 3:

[0047] The difference from the above embodiment is that, Figure 1 As shown: a through hole is provided on the partition 8, and the partition 8 can be sleeved on the heat pipe 5 through the through hole, and the partition 8 is detachably connected to the inner wall of the inner tube 4.

[0048] Specific implementation process:

[0049] The partition plate 8 is detachably connected to the inner cylinder 4, so as to facilitate the simultaneous extraction of different wine samples.

[0050] Embodiment 4:

[0051] The difference from the above embodiment is that a first sealing ring is provided between the partition plate 8 and the inner wall of the inner tube 4 , and a second sealing ring is provided between the partition plate 8 and the heat conducting pipe 5 .

[0052] Specific implementation process:

[0053] The first sealing ring and the second sealing ring improve the sealing performance of the extraction chamber, thereby preventing gas and liquid from flowing back and forth between different extraction chambers and affecting the accuracy of extraction.

[0054] Embodiment 5:

[0055] The difference from the above embodiment is that, Figure 3 As shown: a baffle 13 is provided in the air inlet channel 10, one end of the baffle 13 is hinged to the side wall of the air inlet channel 10 through a torsion spring, and the end of the baffle 13 away from the torsion spring is inclined toward the extraction chamber.

[0056] Specific implementation process:

[0057] The end of the baffle 13 away from the torsion spring is inclined toward the extraction chamber, so that the supercritical fluid can only enter the extraction chamber in one direction, thereby preventing the gas in the extraction chamber from flowing toward the outer tube 6 and affecting subsequent analysis results.

[0058] Embodiment 6:

[0059] The difference from the above embodiment is that, Figure 1 As shown: the heating assembly includes a plurality of parallel heating plates, and the heating plates are evenly arranged vertically along the inner wall of the heat pipe 5.

[0060] Specific implementation process:

[0061] Since the heating plates are arranged in parallel, the temperature can be set according to the required temperature of each layer of wine raw materials.

[0062] Embodiment 7:

[0063] The difference from the above embodiment is that, Figure 4 As shown: a plurality of first comb teeth 11 are provided on the upper side wall of the outer tube 6 , a plurality of second comb teeth 12 are provided on the inner side wall of the cover body 1 , and the first comb teeth 11 can mesh with the second comb teeth 12 .

[0064] Specific implementation process:

[0065] The outer cylinder 6 is sealed by the comb-teeth sealing principle. Each time the air flow passes through a tooth, the pressure is reduced. Moreover, as the specific volume of the flowing gas continues to increase, the speed of passing through the gap continues to increase. Therefore, the pressure drop increases as it passes through a tooth downstream, until the pressure approaches the back pressure, thereby avoiding the pressure difference in the cylinder before and after sealing affecting the supercritical fluid state.

[0066] Embodiment 8:

[0067] The difference from the above embodiment is that, Figure 4 As shown: the thickness of the first comb teeth 11 is twice the thickness of the second comb teeth 12 .

[0068] The specific implementation process is as follows:

[0069] The thickness of the first comb teeth 11 is thicker than that of the second comb teeth 12, so that when the cover body 1 closes the outer cylinder 6, the first comb teeth 11 can provide support for the second comb teeth 12, thereby preventing the first comb teeth 11 from being damaged due to insufficient support force and affecting the sealing performance.

[0070] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0071] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A device for efficiently extracting flavor substances from wine, characterized in that: It includes a cover body, an inner tube and an outer tube, the upper part of the side wall of the outer tube is connected with an air inlet pipe, and the input end of the air inlet pipe is tangent to the side wall of the outer tube; The air inlet pipe is used to pump the supercritical fluid into the outer cylinder along the tangential direction of the outer cylinder. The inner wall of the outer cylinder is fixedly connected with a guide plate, which is spiral-shaped. The guide plate is used to divide the space formed between the outer cylinder and the inner cylinder into a number of connected chambers. The chambers are used to prevent the supercritical fluid from being separated from the gas and liquid in advance due to the decrease in pressure. The chambers are also used to ensure that the supercritical fluid is in a supercritical state before entering the extraction chamber, and to preheat the extraction chamber constantly. The side wall of the inner cylinder is connected with a plurality of air inlet channels, and the air inlet channels are tangent to the side wall of the inner cylinder; a baffle is arranged in the air inlet channel, one end of the baffle is hinged to the side wall of the air inlet channel through a torsion spring, and the end of the baffle away from the torsion spring is inclined toward the extraction chamber; The inner cylinder is provided with a plurality of partitions, which are evenly arranged vertically along the inner cylinder. The partitions divide the inner cylinder into a plurality of independent extraction chambers. The side walls of the extraction chambers are connected with exhaust pipes, on which a one-way throttle valve is installed. The exhaust pipe passes through the side walls of the outer cylinder and is connected with an analytical instrument. An integrally formed heat-conducting pipe is provided at the bottom center of the outer cylinder, in which a heating assembly is installed. The heating assembly includes a plurality of parallel heating plates, which are evenly arranged vertically along the inner wall of the heat-conducting pipe. A plurality of first comb teeth are provided above the side wall of the outer cylinder, and a plurality of second comb teeth are provided on the inner wall of the cover body, and the first comb teeth can mesh with the second comb teeth.

2. The device for efficiently extracting flavor substances from wine according to claim 1, characterized in that: The partition is provided with a through hole, and the partition can be sleeved on the heat-conducting pipe through the through hole, and the partition is detachably connected to the inner wall of the inner tube.

3. The device for efficiently extracting flavor substances from wine according to claim 1, characterized in that: A first sealing ring is arranged between the partition plate and the inner wall of the inner tube, and a second sealing ring is arranged between the partition plate and the heat conducting pipe.

4. The device for efficiently extracting flavor substances from wine according to claim 1, characterized in that: The thickness of the first comb teeth is twice the thickness of the second comb teeth.

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