Angelica sinensis volatile oil extraction equipment
By improving the design and optimization of pipeline structure for the three-stage condenser, the problems of low extraction rate and cumbersome collection in traditional Angelica volatile oil extraction equipment are solved, and efficient and safe extraction of volatile oil is achieved, suitable for large-scale production.
Patent Information
- Application Number
- CN202421890138.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-06
AI Technical Summary
The traditional angelica volatile oil extraction technology has problems such as low extraction rate, long consumption time, denaturation and decomposition, poor condensation effect, cumbersome collection process and high labor costs, making it difficult to achieve large-scale production.
The three-stage condenser design is adopted, and it is improved to a column-type condenser. It uses frozen water to condense, add heavy oil collection buffer tank and distillate buffer tank, and optimizes the pipeline design to achieve block collection of light oil and heavy oil, reduces the condensation path and oil-water mixing, and improves extraction efficiency and sanitary conditions.
It improves the extraction rate of aromatic oil, reduces the loss of volatile oil, simplifies the collection process, reduces labor costs, ensures the quality and safety of volatile oil, and is suitable for large-scale production.
Smart Images
Figure CN223074140U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of traditional Chinese medicine production and processing equipment, and specifically relates to an extraction device for angelica volatile oil. Background Art
[0002] The active ingredients of traditional Chinese medicine are closely related to pharmacological effects. According to the research by I W L, ZENG R, GU C M, et al. Angelicasinensis in China - A review of botanical profile, ethnopharmacology, phytochemistry and chemical analysis [J]. J Ethnopharmacol, 2016, 190: 116 - 141, it shows that volatile oil phthalides, organic acids and polysaccharides are the main chemical components affecting the biological activity and pharmacological effects of angelica. According to the research results refined by ZHOU Meili, HAN Niping. Research progress on the active ingredients and pharmacological effects of angelica [J / OL]. Global Traditional Chinese Medicine, 2024, (07): 1420 - 1427 [2024 - 07 - 29], angelica volatile oil contains light oil and heavy oil, and the main component is phthalides. Among them, ligustilide (LIG) and n-butylidenephthalide have relatively high contents, and they are simple phthalides that play the main pharmacological effects, with the characteristics of small molecular weight, fast absorption and poor stability.
[0003] Traditional extraction processes use methods such as gas extraction, steam distillation, and organic solvent extraction for separation and extraction; the chemical components and contents extracted by different extraction methods are different. Among them, steam distillation is the most commonly used extraction method, but in actual application, there are problems such as low extraction rate, long consumption time, denaturation and decomposition; while organic solvent extraction has organic solvent residues and has a certain impact on the environment. New extraction methods such as supercritical CO2 extraction, microwave-assisted extraction, and ultrasonic-assisted extraction have improved the extraction efficiency, but the extraction process is complex, the extraction cost and the requirements for employee quality are high, and it is difficult to be used in large-scale production.
[0004] As Figure 3 shown, the technology we are using now is the steam distillation method in traditional technology, and the problems it has are mainly reflected in:
[0005] 1. The condensation effect is poor, resulting in too long a heat exchange route and too many bends, and a large amount of aromatic oil in the distillate adheres to the pipe wall, affecting the extraction yield of aromatic oil;
[0006] 2. The process of collecting volatile oil is cumbersome. After the distillation is completed, it is necessary to stand and layer in a bucket and then transfer it to a clean area for collection, which increases the labor cost and there is a risk of microbial contamination of the medicine.
[0007] In summary, the high technical difficulty of extracting the volatile oil from Angelica sinensis is mainly reflected in that the high-precision and high-difficulty technology can only be realized in the laboratory. Its difficulty and the requirements for talents and equipment are the reasons restricting its large-scale production. The traditional technology has problems such as low extraction rate, long consumption time, denaturation and decomposition, etc.
[0008] To solve the above problems, we have made a series of improvements. Utility Model Content
[0009] The purpose of the present utility model is to provide an extraction device for the volatile oil of Angelica sinensis to overcome the above-mentioned disadvantages and deficiencies existing in the prior art.
[0010] An extraction device for the volatile oil of Angelica sinensis includes: an extraction tank, a primary condenser, a secondary condenser, a tertiary condenser, a heavy oil collection buffer tank, a distillate buffer tank, a light oil sampling observation port and a heavy oil sampling observation port. The extraction tank is connected to the primary condenser, the primary condenser is connected to the secondary condenser. The liquid outlets of the primary condenser and the secondary condenser are connected to the heavy oil collection buffer tank and the distillate buffer tank through pipelines. The liquid outlets of the primary condenser and the secondary condenser are connected to the tertiary condenser through the light oil sampling observation port. A heavy oil sampling observation port is provided at the bottom of the tertiary condenser. The tertiary condenser is connected to the heavy oil collection buffer tank, and the heavy oil collection buffer tank is connected to the distillate buffer tank.
[0011] Further, the primary condenser, the secondary condenser and the tertiary condenser are shell-and-tube condensers. Freezing water interfaces are provided on the secondary condenser and the tertiary condenser, and freezing water outlets are provided on the primary condenser and the tertiary condenser.
[0012] Further, a heavy oil observation buffer recovery port is provided at the bottom of the heavy oil collection buffer tank, and an observation port is provided at the bottom of the distillate buffer tank.
[0013] The beneficial effects of the present utility model:
[0014] Compared with the traditional technology, the pipeline design of the present utility model is scientific, and light oil and heavy oil can be collected simultaneously. Condensation is carried out through freezing water, and the traditional coil-type secondary condensation is transformed into shell-and-tube type, reducing the condensation path and improving the extraction rate of aromatic oil. Tertiary condensation and multiple recoveries ensure complete oil collection and accelerate the separation of oil and water. A heavy oil collection buffer tank is provided to avoid losses caused by incomplete sedimentation of heavy oil. Brief Description of the Drawings
[0015] Figure 1 It is an exploded view of the present utility model.
[0016] Figure 2 It is a structural schematic diagram of the present utility model.
[0017] Figure 3 It is a schematic structural diagram of a traditional device.
[0018] Reference numerals:
[0019] Extraction tank 100, primary condenser 200, secondary condenser 300, and tertiary condenser 400.
[0020] Heavy oil collection buffer tank 500 and heavy oil observation buffer recovery port 510.
[0021] Distillate buffer tank 600 and observation port 610.
[0022] Light oil sampling observation port 700 and heavy oil sampling observation port 800.
[0023] Chilled water interface 910 and chilled water outlet 920. Specific implementation mode
[0024] The following further illustrates the present utility model in conjunction with specific embodiments. It should be understood that the following embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model.
[0025] Embodiment 1
[0026] Figure 1 It is an exploded view of the present utility model. Figure 2 It is a schematic structural diagram of the present utility model. Figure 3 It is a schematic structural diagram of a traditional device.
[0027] As Figure 1 and 2 shown, an angelica volatile oil extraction device includes: extraction tank 100, primary condenser 200, secondary condenser 300, tertiary condenser 400, heavy oil collection buffer tank 500, distillate buffer tank 600, light oil sampling observation port 700, and heavy oil sampling observation port 800. The extraction tank 100 is connected to the primary condenser 200, the primary condenser 200 is connected to the secondary condenser 300, the liquid outlets of the primary condenser 200 and the secondary condenser 300 are connected to the heavy oil collection buffer tank 500 and the distillate buffer tank 600 through pipelines, the liquid outlets of the primary condenser 200 and the secondary condenser 300 are connected to the tertiary condenser 400 through the light oil sampling observation port 700, the heavy oil sampling observation port 800 is provided at the bottom of the tertiary condenser 400, the tertiary condenser 400 is connected to the heavy oil collection buffer tank 500, and the heavy oil collection buffer tank 500 is connected to the distillate buffer tank 600.
[0028] The primary condenser 200, secondary condenser 300, and tertiary condenser 400 are shell-and-tube condensers. The secondary condenser 300 and the tertiary condenser 400 are provided with chilled water interfaces 910, and the primary condenser 200 and the tertiary condenser 400 are provided with chilled water outlets 920.
[0029] At the bottom of the heavy oil collection buffer tank 500, there is a heavy oil observation buffer recovery port 510, and at the bottom of the distillate buffer tank 600, there is an observation port 610.
[0030] The basic process of the present utility model is that the whole adopts a stainless steel 304 airtight pipeline structure, which is installed above the extraction tank 100. High-temperature steam is guided through the airtight pipeline to complete condensation. The designed pipeline enables the steam and distillate to pass through three-stage condensers, namely the primary condenser 200, the secondary condenser 300, and the tertiary condenser 400, for sufficient condensation and to promote complete separation of oil and water. The staged condensation makes the distillate, volatile light oil, and heavy oil enriched in separate blocks. Multiple observation ports are set in the pipeline, namely: the heavy oil observation buffer recovery port 510, the observation port 610, the light oil sampling observation port 700, and the heavy oil sampling observation port 800, which are convenient for observing the state of volatile oil and the oil collection situation in real time. Although their structures are similar, their functions are different.
[0031] Therefore, when the original liquid enters the primary condenser 200 from the extraction tank, the secondary condenser 300 will assist in the first-stage condensation. At this time, the chilled water is connected to them, and they are of the shell-and-tube condenser type. After the first process is completed, light oil, heavy oil, and distillate will be produced respectively. Then correspondingly, the light oil will be directly recovered in the pipeline through the light oil sampling observation port 700, and the incompletely separated original liquid will continue to enter the tertiary condenser 400. The heavy oil and distillate will enter the heavy oil collection buffer tank 500 and the distillate buffer tank 600 respectively.
[0032] Subsequently, the tertiary condenser 400 is also of the shell-and-tube condenser type. After its condensation, the light oil will float up and be recovered through the light oil sampling observation port 700, and the heavy oil will be recovered through the heavy oil sampling observation port 800 by pipeline. At the same time, a part of the heavy oil and distillate will enter the heavy oil collection buffer tank 500 through the pipeline. The second-stage condensation and stratification process is completed.
[0033] Finally, the heavy oil collection buffer tank 500 will recover the heavy oil through the heavy oil observation buffer recovery port 510, and at the same time transmit the distillate to the distillate buffer tank 600, and finally discharge the distillate through the observation port 610.
[0034] Principle of condensation and liquid separation: To ensure the full and rapid extraction of volatile oils from medicinal materials, a pipeline is connected above the extraction tank 100, and a multi-stage chilled water cooling jacket is added to the outer wall of the pipeline to condense the steam, so that the volatile oils are fully condensed. Due to the density difference between the volatile oils and water, the light oils will condense on the upper layer of the liquid surface, and the heavy oils will condense on the lower layer of the liquid surface. The excess distillate in the middle layer is drained through the sewage pipe. By designing the vertical positions of the tank body and the pipeline, the light oil sampling observation port 700 is located above the sewage observation port 610, and the heavy oil sampling observation port 800 and the heavy oil observation buffer recovery port 510 are located below the sewage observation port 610 to completely collect the volatile oils from the medicinal materials.
[0035] Principle of volatile oil collection: Due to the density difference between the volatile oils and water, to ensure complete steam condensation and light oil yield, a primary condenser 200 and a secondary condenser 300 are set up to fully condense the steam, and corresponding light oil sampling observation ports 700 are designed below the two condensers to observe and recover the light oil in real time. At the same time, to improve the heavy oil yield and minimize the loss caused by the incomplete sedimentation of heavy oils being drained off with the middle layer distillate, a tertiary condenser 400 is set up to further condense the steam and promote the oil-water separation.
[0036] The innovation of the present utility model is reflected in that, first of all, the secondary condenser 300 is improved from the traditional coil condenser to a shell-and-tube condenser. The reason for the traditional need for a coil condenser is that they use cooling water for condensation, the cooling water is 20°C, and there are only two condensers, so a coil condenser with stronger efficiency is required. However, this brings about a too long heat exchange route and too many bends, and a large amount of aromatic oil in the distillate adheres to the pipe wall, affecting the extraction yield of aromatic oil. While the present utility model uses chilled water at 5°C and has three-stage cooling, so it can be changed to a shell-and-tube condenser to reduce the bends and the heat exchange path, thereby improving the extraction efficiency. This is the first reason for adopting the tertiary condenser 400, which helps the secondary condenser 300 to realize the transformation into a shell-and-tube condenser.
[0037] As the core innovation of the utility model, the three-stage condenser 400 can not only assist the other two original condensers to better improve the extraction efficiency, but its more important purpose is to promote oil-water separation and improve the recovery rate of Angelica volatile oil. In the original equipment, we cannot directly obtain a sufficient amount of Angelica volatile oil through simple first- and second-stage condensation, and the loss of volatile oil is often caused by the influence of the condensation temperature. That is, too high a temperature will cause incomplete condensation of the high-temperature steam of Angelica, resulting in the escape of volatile oil, or too low a temperature will cause the volatile oil to quickly condense on the pipe wall and be lost. Therefore, traditional equipment does not stack condensers in order to pursue a stronger condensation effect. Based on the original equipment, in the utility model, we do not directly connect the three-stage condenser 400 to the first-stage condenser 200 and the second-stage condenser 300 to pursue a blindly stacked condensation effect. Instead, after the oil outlet of the first-stage condenser 200 and the second-stage condenser 300, a pipeline is connected to the three-stage condenser 400. They are not in a parallel processing relationship, but in a superior-subordinate process relationship. Through such a structural design, the condensate with a higher temperature is stratified in the three-stage condenser. On the one hand, the condensation effect is enhanced, and on the other hand, the problem of a large amount of oil-water mixture caused by the complex reaction environment due to the just-condensed oil and water is solved. The mixing of oil and water can be regarded as a reversible reaction process. After the condensate is continuously generated and drops into the three-stage condenser 400, since the temperature of the newly distilled liquid is higher at this time and the process of entering the system is intense, the dissolution equilibrium continuously shifts in the direction of generating an oil-water mixture. By installing the three-stage condenser 400 in this equipment, the temperature of the reaction system is further reduced, the dissolution equilibrium shifts towards the direction of oil-water separation, and the oil-water separation is accelerated.
[0038] At the same time, such a structural design can ensure the block collection of Angelica volatile oil. By installing the three-stage condenser 400 below the first-stage condenser 200 and the second-stage condenser 300, on the one hand, the remaining extremely small amount of steam is condensed, and on the other hand, through the position design, it is ensured that the light oil stratified in the three-stage condenser 400 is enriched in the light oil sampling observation port 700 and the heavy oil is enriched in the heavy oil sampling observation port 800, realizing the regional stratified collection of Angelica volatile oil. At the same time, setting the three-stage condenser that separates oil and water in the middle of the whole equipment can minimize the turning angles in the pipeline and reduce the loss of volatile oil caused by stratified condensation and wall hanging.
[0039] The third reason for using the three-stage condenser 400 is to improve the collection efficiency and sanitary conditions of Angelica volatile oil. In the original equipment, we need to collect all the distillates and then transport them to the cold storage by cart for stratified oil collection. This process increases the time, transportation and storage costs of drug production and increases the risk of volatile oil pollution. The addition of the three-stage condenser 400 well solves the problems of volatile oil exposure to the air and transportation. By carrying out condensation and stratification in a closed pipeline, the quality of volatile oil is guaranteed and the working procedure is optimized.
[0040] Furthermore, the structure of the heavy oil collection buffer tank 500 is additionally provided to avoid the loss caused by the heavy oil being washed away by the distillate due to its slow sedimentation rate. Since the sedimentation rate of the heavy oil is slower, if no auxiliary structure is added, incomplete sedimentation will occur, and the heavy oil will be drained away with the distillate, resulting in the loss of heavy oil. The heavy oil collection buffer tank 500 can play this auxiliary role.
[0041] Then, the distillate buffer tank 600 is additionally provided in the present utility model. On the one hand, it avoids the siphon effect, that is, in a vacuum environment, the heavy oil is sucked out together during the discharge of the distillate, causing waste; on the other hand, it can control the flow rate of the distillate.
[0042] Finally, the present utility model uses the heavy oil observation buffer recovery port 510, the light oil sampling observation port 700, and the heavy oil sampling observation port 800 for pipeline transmission. Compared with the traditional collection vehicle transportation, it avoids the cumbersome process of volatile oil collection. After the distillation is completed, it is necessary to let it stand and layer in a bucket and then transfer it to a clean area for collection, which increases the labor cost and there is a risk of drug microbial contamination.
[0043] Compared with the traditional technology, the pipeline design of the present utility model is scientific, and it can collect light oil and heavy oil at the same time; it is condensed by chilled water, and the traditional coil-type secondary condensation is changed to shell-and-tube type, reducing the condensation path and improving the extraction yield of aromatic oil; three-stage condensation and multiple recovery ensure complete oil collection and accelerate the separation of oil and water; a heavy oil collection buffer tank is set to avoid the loss of heavy oil due to incomplete sedimentation.
[0044] The specific embodiments of the present utility model have been described above, but the present utility model is not limited thereto. As long as it does not deviate from the purpose of the present utility model, the present utility model can have various changes.
Claims
1. An extraction device for angelica volatile oil, characterized in that, Including: An extraction tank (100), a primary condenser (200), a secondary condenser (300), a tertiary condenser (400), a heavy oil collection buffer tank (500), a distillate buffer tank (600), a light oil sampling observation port (700) and a heavy oil sampling observation port (800). The extraction tank (100) is connected to the primary condenser (200), the primary condenser (200) is connected to the secondary condenser (300), the liquid outlets of the primary condenser (200) and the secondary condenser (300) are connected to the heavy oil collection buffer tank (500) and the distillate buffer tank (600) through pipelines, the liquid outlets of the primary condenser (200) and the secondary condenser (300) are connected to the tertiary condenser (400) through the light oil sampling observation port (700), the bottom of the tertiary condenser (400) is provided with the heavy oil sampling observation port (800), the tertiary condenser (400) is connected to the heavy oil collection buffer tank (500), and the heavy oil collection buffer tank (500) is connected to the distillate buffer tank (600).
2. The extraction device for angelica volatile oil according to claim 1, wherein: The primary condenser (200), the secondary condenser (300) and the tertiary condenser (400) are shell-and-tube condensers. The secondary condenser (300) and the tertiary condenser (400) are provided with chilled water interfaces (910), and the primary condenser (200) and the tertiary condenser (400) are provided with chilled water outlets (920).
3. An extraction device for angelica volatile oil according to claim 1, characterized in that: The bottom of the heavy oil collection buffer tank (500) is provided with a heavy oil observation buffer recovery port (510), and the bottom of the distillate buffer tank (600) is provided with an observation port (610).