Agilawood essential oil extracting and distilling device capable of increasing pressure without heating

Abstract

An agilawood essential oil extracting and distilling device without temperature rising through pressurization comprises a distilling tank, an air supply device, a heating device, a condensing device and an oil-water separating device, a perforated plate is arranged at the bottom of the inner side of the distilling tank, and the distilling tank is provided with an air inlet, an air inlet pipe, a water inlet and a condensing opening. The other end extends downwards to the bottom along the inner side wall of the distillation retort and is positioned below the perforated plate; the heating device is arranged at the bottom of the distillation retort, the water inlet and the condensation opening are both formed in the top of the distillation retort, the condensation device is arranged on the condensation opening, and the oil-water separation device is connected to the condensation device. The low-temperature essential oil extraction device can realize low-temperature essential oil extraction, reduce energy consumption and improve the stability of thermosensitive components, is low in cost, high in efficiency and strong in practicability, and has relatively strong popularization significance.

Description

TECHNICAL FIELD

[0001] The utility model relates to a distillation device, especially a luffa oil extraction distillation distillation device of pressurization not heating. BACKGROUND

[0002] Luffa oil is a high-value essential oil product extracted from luffa, commonly used in cosmetics and pharmaceutical industry. Modern pharmacology believes that luffa oil has the characteristics of antioxidant, antibacterial, anti-inflammatory, air purification, relaxation and sedation. At present, the conventional extraction method of luffa oil is high-temperature steam distillation. However, since the essential oil contains most volatile heat-sensitive components (sesquiterpenes), high temperature may damage the heat-sensitive components, and the extraction time is relatively long (several hours to several days), and the yield is low (usually 0.5%-2%). In addition, high temperature may also cause degradation of some aroma components, resulting in dark color (amber) of the obtained essential oil, which needs to be aged (such as buried in soil) to remove odor and improve purity, which is complicated and time-consuming. SUMMARY

[0003] Therefore, it is necessary to provide a luffa oil extraction distillation device of pressurization not heating to solve the above problems.

[0004] A luffa oil extraction distillation device of pressurization not heating, comprising a distillation tank, a gas supply device, a heating device, a condensing device and an oil-water separation device, a plurality of perforated plates are arranged on the inner bottom of the distillation tank, an air inlet, an air inlet pipe, a water inlet and a condensing port are arranged on the distillation tank, one end of the air inlet pipe is connected to the air inlet, and the other end extends downward along the inner side wall of the distillation tank to the bottom and is located below the perforated plate; the heating device is arranged at the bottom of the distillation tank, the water inlet and the condensing port are arranged at the top of the distillation tank, the condensing device is arranged on the condensing port, and the oil-water separation device is connected to the condensing device; the flow guide part is arranged in a horn shape with gradually increasing hole diameter from top to bottom.

[0005] Further, the condensing device comprises a horizontal condensing device and a vertical condensing device, the horizontal condensing device is arranged above the distillation tank and connected to the condensing port, and the vertical condensing device is connected to the horizontal condensing device.

[0006] Further, it further comprises a buffer tank, and the buffer tank is connected to the vertical heating and cooling device.

[0007] Further, it further comprises a reflux pump, and the distillation tank is further provided with a reflux port, and the reflux pump is connected to the buffer tank and the reflux port.

[0008] Further, the reflux port is arranged in an inclined extension structure with the outer side higher and the inner side lower, and the inner side end extends below the perforated plate.

[0009] Furthermore, it also includes a filtration device connected to the oil-water separator.

[0010] Furthermore, the distillation tank is also equipped with a pressure regulating valve and a pressure gauge.

[0011] Furthermore, the top of the distillation tank is provided with a quick-opening inlet, and a sight glass is provided on the side of the quick-opening inlet.

[0012] Furthermore, the distillation jar is also provided with a quick-opening hand hole, which is located on the side and above the perforated plate.

[0013] Furthermore, the distillation vessel is also provided with a discharge port, and the inner bottom surface of the distillation vessel is spherical, with the discharge port located at the bottommost end.

[0014] In summary, the distillation apparatus of this invention can extract more low-volatile components (such as chromones and resins) at lower temperatures (e.g., 80-90℃), reduce the decomposition of heat-sensitive components, retain more heat-sensitive aromatic substances, and produce a fresher and more complex essential oil aroma. Furthermore, it achieves high purity without the need for prolonged aging. Simultaneously, the high-pressure environment enhances the solvent's (water vapor) dissolving power, enabling a more comprehensive extraction of active substances from agarwood. This approach preserves the natural components of agarwood, increases oil yield, reduces energy consumption, and lowers costs, thus balancing efficiency and cost. It is highly practical and has significant potential for widespread application. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the pressurized but non-heating agarwood essential oil extraction and distillation apparatus of this utility model.

[0016] Figure 2 for Figure 1 Schematic diagram of the structure of the medium-distillation tank;

[0017] Figure 3 for Figure 2 Top view of the distillation tank. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0019] like Figures 1 to 3 As shown, this utility model provides a pressurized but non-heat-raising agarwood essential oil extraction and distillation device, which includes a distillation tank 10, a gas supply device 20, a heating device 30, a horizontal condenser 40, a vertical condenser 50, a buffer tank 60, a reflux pump 70, and an oil-water separator (not shown).

[0020] The air supply device 20 is connected to the distillation tank 10 to fill the inert pressurizing gas into the distillation tank. In this embodiment, the pressurizing gas is air, which can create a stable environment, reduce oxidation, and preserve active ingredients. It is understood that the inert pressurizing gas is not limited to air, but can also be other gases of the same type. The heating device 30 is arranged at the bottom of the distillation tank 10 to dry steam the eaglewood chips in the distillation tank 10. The horizontal condensing device 40 is arranged at the top of the distillation tank 10, the vertical condensing device 50 is connected to the condensing device 40, the buffer tank 60 is connected to and below the vertical condensing device 50, the reflux pump 70 is connected to the buffer tank 60 and the distillation tank 10, and the oil-water separation device is connected to the buffer tank 60 to separate the distilled mixed liquid.

[0021] A perforated plate 11 is arranged in the distillation tank 10, and the inner surface of the distillation tank 10 is provided with a plurality of support blocks 111 below the perforated plate 11, and the perforated plate 11 is arranged on the support blocks 111. The distillation tank 10 is also provided with a condensing port 12, an air inlet 13, a reflux port 15, a quick-opening hand hole 16, a quick-opening inlet hole 17, a water inlet 18, and a discharge port 19. The condensing port 12, the air inlet 13, the quick-opening inlet hole 17, and the water inlet 18 are arranged at the top of the distillation tank 10, the reflux port 15 and the quick-opening hand hole 16 are arranged at the lower part of the side of the distillation tank 10, and the discharge port 19 is arranged at the bottom end of the distillation tank 10. The inner wall of the distillation tank 10 is provided with an air inlet pipe 14 connected to the air inlet 13. The air inlet pipe 14 extends along the inner wall of the distillation tank 10 from top to bottom to the bottom and is located directly below the perforated plate 11. In addition, the inner side of the condensing port 12 is provided with a flow guide part 121 which is arranged in a trumpet shape with the hole diameter gradually increasing from top to bottom. The design of this structure allows the steam to directly rise along the side wall of the flow guide part 121 without circulating in the distillation tank 10, which improves the oil yield and reduces the oil discharge time, and is more time-saving.

[0022] In this embodiment, the inner side end of the reflux port 15 extends below the perforated plate 11. The quick-opening hand hole 16 is arranged above the perforated plate 11 to facilitate cleaning of the bottom material. The quick-opening inlet hole 17 is arranged at the top of the distillation tank 10 and is used to place and clean the material. In addition, a sight glass 171 is arranged on the side of the quick-opening inlet hole 17 to observe the material in the tank. The discharge port is used to discharge the bottom material, and the water inlet is used to add water for dry steam.

[0023] The air supply device 20 is connected to the air inlet 13, which can be an air cylinder or a nitrogen generator. The horizontal condensing device 40 is arranged above the distillation tank 10, and the condensing port 12 is connected to the upper horizontal condensing device 40 through a pipeline. The rear end of the horizontal condensing device 40 is provided with a mixed liquid outlet 41, and the vertical condensing device 50 is arranged below the horizontal condensing device 40 and connected to the mixed liquid outlet 41 through a pipeline. The buffer tank 60 is arranged below the vertical condensing device 50 and connected to the liquid outlet of the vertical condensing device 50 through a pipeline. The reflux pump 70 is connected to the buffer tank 60 and the reflux port 15. In addition, the distillation device is provided with a pressure regulating valve and a pressure gauge to accurately control and monitor the pressure in the distillation tank.

[0024] The heating device 30 includes a plurality of jackets 31 and electric heating wires 32 extending in the jackets 31. Heat-conducting oil is arranged in the jackets, and the electric heating wires heat the oil in the jackets to a temperature for heating the water in the bottom of the tank to water vapor. In addition, a filtering device (not shown) is also included, which uses a precision filter or centrifugal separation to remove solid impurities. The collected crude agarwood essential oil is filtered to remove possible solid impurities, making the essential oil more pure.

[0025] In operation, water is added to the distillation tank 10 from the water inlet 18, and agarwood is crushed and placed on the perforated plate 11. The openings of the distillation tank 10 are closed, and high-purity air (purity ≥ 99.99%) is introduced into the distillation tank 10. Nitrogen is continuously filled for a period of time, and oxygen is discharged from the horizontal condensing device 40, forming a low-oxygen or oxygen-free environment in the distillation tank 10 to prevent oxidation of the agarwood components during extraction. After the nitrogen filling is completed, the nitrogen supply is stopped, and the heating device 30 is turned on to heat the agarwood raw materials in the distillation tank 10. During heating, the temperature is controlled to gradually rise to the extraction temperature (usually 60-80°C). Under the conditions of heating and pressurization, the essential oil components in the agarwood volatilize with water vapor to form mixed steam. The pressure of the air helps the water vapor to penetrate deeper into the agarwood raw materials, accelerating the dissolution and volatilization of the essential oil. The mixed steam enters the horizontal condensing device 40 and the vertical condensing device 50 through a pipeline, and is liquefied by secondary cooling in the horizontal condensing device 40 and the vertical condensing device 50 to form a mixed liquid containing essential oil and water. The mixed liquid enters the buffer tank 60, and the reflux pump 70 re-pumps the mixed liquid back into the distillation tank 10 for re-distillation, thereby improving the purity and removing impurities. Understandably, to improve the oil yield, the extracted agarwood residue can also be extracted again. The above steps of nitrogen filling, pressurization, temperature rise, condensation, and separation can be repeated for 2-3 times of extraction. When the purification is repeated to the required number of times, the mixed liquid in the buffer tank 60 is separated by an oil-water separation device, and the essential oil and water are collected separately.

[0026] The distillation device has the advantages that the pressurized gas is used for pressurized extraction.

[0027] 1. Protecting heat-sensitive components: Nitrogen is an inert gas with stable chemical properties and does not react with the components in eaglewood. During the pressurized extraction process, it can create a relatively stable environment, avoiding the degradation or deterioration of heat-sensitive components (such as some sesquiterpenes and aromatic compounds) in eaglewood due to oxidation and other reactions, better preserving the natural aroma components and active substances in eaglewood essential oil, and improving the quality of essential oil.

[0028] 2. Reducing extraction temperature: By pressurizing with nitrogen, the boiling point of water vapor or other solvents can be increased, allowing the extraction process to be carried out at a relatively low temperature. Lower temperature helps to reduce the destruction of heat-sensitive components, while also reducing energy consumption and improving extraction efficiency. For example, in traditional water vapor distillation, a temperature of about 100℃ is required, while pressurization with nitrogen can allow effective extraction to be completed at a temperature of about 80℃.

[0029] 3. Preventing oxidation: Some components in eaglewood are easily oxidized in air, affecting the aroma and quality of essential oil. Pressurization with nitrogen can expel air from the extraction device, reducing oxygen content and forming a low-oxygen or oxygen-free environment, effectively preventing oxidation of eaglewood components, prolonging the shelf life of eaglewood essential oil, and maintaining the purity and stability of its aroma.

[0030] 4. Improving extraction efficiency: The pressurization of nitrogen can increase the penetration ability of solvents (such as water vapor) to eaglewood raw materials, allowing solvents to more quickly and fully contact the essential oil components in eaglewood, thereby accelerating the extraction speed and improving the oil yield. At the same time, pressurization helps to break the cell structure of eaglewood, making it easier for essential oil to be released, further improving the extraction efficiency.

[0031] 5. Reducing impurities: Due to the inertness of nitrogen and its protective effect on the environment, impurities generated by oxidation, polymerization and other reactions can be reduced during the extraction process, resulting in relatively purer eaglewood essential oil. This is very beneficial for subsequent refining and use of essential oil, reducing the difficulty and cost of further purification.

[0032] In summary, the distillation device of the present utility model can extract more low-volatility components (such as chromones and resins) at a lower temperature (such as 80-90℃), reduce the decomposition of heat-sensitive components, retain more heat-sensitive aromatic substances, and achieve higher purity without long-term aging. At the same time, the solubility of the solvent (water vapor) is enhanced in a high-pressure environment, allowing more active substances in eaglewood to be extracted. It not only retains the natural components of eaglewood, but also improves the oil yield, reduces energy consumption, and is more cost-effective, balancing efficiency and cost. It has strong practicality and strong promotional significance.

[0033] The above-described embodiment only expresses one implementation manner of the utility model, and the description is relatively specific and detailed, but cannot be understood as a limitation on the utility model patent scope. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A pressurized non-thermal linaloe oil extraction distillation apparatus, characterized by: The device comprises a distillation tank, a gas supply device, a heating device, a condensing device and an oil-water separation device. A plurality of perforated plates are arranged on the inner bottom of the distillation tank. The distillation tank is provided with a gas inlet, a gas inlet pipe, a water inlet and a condensing port. The gas inlet pipe is connected to the gas inlet at one end and extends downward along the inner sidewall of the distillation tank to the bottom below the perforated plates at the other end. The heating device is arranged at the bottom of the distillation tank. The water inlet and the condensing port are arranged at the top of the distillation tank. The condensing device is arranged on the condensing port. The oil-water separation device is connected to the condensing device. The flow guide part is arranged in a horn shape with gradually increasing hole diameter from top to bottom.

2. The pressurized non-thermal linaloe oil extraction distillation apparatus as claimed in claim 1, wherein: The condensing device comprises a horizontal condensing device and a vertical condensing device. The horizontal condensing device is arranged above the distillation tank and connected to the condensing port. The vertical condensing device is connected to the horizontal condensing device.

3. The pressurized non-thermal linaloe oil extraction distillation apparatus as claimed in claim 2, wherein: The device further comprises a buffer tank connected to the vertical condensing device.

4. The pressurized non-thermal linaloe oil extraction distillation apparatus as claimed in claim 3, wherein: The device further comprises a reflux pump. The distillation tank is further provided with a reflux port. The reflux pump is connected to the buffer tank and the reflux port.

5. The pressurized non-thermal linaloe oil extraction distillation apparatus as claimed in claim 4, wherein: The reflux port is arranged in an inclined extension structure with the outer side higher and the inner side lower. The inner end of the reflux port extends below the perforated plates.

6. The pressurized non-thermal linaloe oil extraction distillation apparatus as claimed in claim 1, wherein: The device further comprises a filter device connected to the oil-water separation device.

7. The pressurized non-thermal linaloe oil extraction distillation apparatus as claimed in claim 1, wherein: The distillation tank is further provided with a pressure regulating valve and a pressure gauge.

8. The pressurized non-thermal linaloe oil extraction distillation apparatus as claimed in claim 1, wherein: The top of the distillation tank is further provided with a quick-opening manhole. The side of the quick-opening manhole is provided with a sight glass.

9. The pressurized non-thermal linaloe oil extraction distillation apparatus as claimed in claim 1, wherein: The distillation tank is further provided with a quick-opening hand hole. The quick-opening hand hole is arranged on the side above the perforated plates.

10. The pressurized non-thermal linaloe oil extraction distillation apparatus as claimed in claim 1, wherein: The distillation tank is further provided with a discharge port. The inner bottom surface of the distillation tank is arranged in a spherical shape. The discharge port is arranged at the bottom end.

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