An extraction and separation device for volatile oil of Amomum tsao-ko

Abstract

The utility model discloses a kind of volatile oil extraction and separation devices of Amomum tsao-ko, belong to Amomum tsao-ko processing technical field, including evaporation unit, heating unit, condensing unit and low-temperature cooling circulating pump, evaporation unit includes evaporation chamber, the main part of evaporation chamber is made of heating interlayer, agitator is installed on evaporation chamber, the gas outlet end of evaporation chamber is connected with the gas inlet end of condensing unit, the liquid inlet end and liquid outlet end of low-temperature cooling circulating pump are connected with condensing unit, and make cooling liquid form circulation, by adopting evaporation chamber of spherical structure, and by heating interlayer to the bottom and periphery are uniformly heated, improve the heating uniformity and fullness of Amomum tsao-ko and water mixture, and cooperate with manual agitator and visual window, it is convenient to flexibly stir according to actual situation, and by low-temperature cooling circulating pump to condenser circulating feed cooling liquid, improve condensing efficiency, and cooperate with cooler, form the effect of secondary condensation, reduce the loss of volatile oil, improve extraction effect, and facilitate cleaning.

Description

Technical Field

[0001] This utility model specifically relates to a device for extracting and separating volatile oil from cardamom, belonging to the field of cardamom processing technology. Background Technology

[0002] Cardamom, a perennial herb belonging to the genus Cardamom in the ginger family, possesses a unique pungent aroma throughout. Its fruit is rich in volatile oil, which has the effects of removing fishy and muttony odors, enhancing the aroma and flavor of food, and also has the effects of drying dampness, strengthening the spleen, eliminating phlegm, and treating malaria. It is a typical plant with both medicinal and edible properties. It also has broad application prospects in food processing, daily chemical products, and the pharmaceutical industry. Currently, steam distillation is a commonly used method for extracting volatile oil from cardamom. The cardamom is crushed, mixed with water, distilled, and then the steam is condensed to obtain the volatile oil. However, current cardamom distillation equipment often suffers from localized overheating at the bottom, leading to scorching of the bottom and insufficient extraction at the top. Furthermore, scorching also affects the quality and flavor of the volatile oil. While some distillation equipment includes stirring devices, localized overheating at the bottom is a significant issue. This also leads to lower distillation efficiency, affecting extraction speed and resulting in a longer production cycle. Furthermore, during cooling, most systems now only use condensers to liquefy the steam, resulting in low extraction rates and easy loss of volatile oils. Over time, scale-like deposits will form inside, reducing heat exchange efficiency and weakening the extraction effect. Moreover, most current condensers are sealed, and the internal heat exchange pipes are mostly spiral-shaped to increase the contact distance with the coolant. However, spiral heat exchange pipes are particularly difficult to clean and inconvenient to use. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a cardamom volatile oil extraction and separation device. This device improves the uniformity of heating cardamom, enhances condensation efficiency and effect during condensation, increases the extraction rate of cardamom volatile oil, and facilitates disassembly and cleaning of the heat exchange points during long-term use.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: a cardamom volatile oil extraction and separation device, comprising an evaporation unit, a heating unit, a condensation unit, and a low-temperature cooling circulation pump. The evaporation unit includes a spherical evaporation chamber, and the main body of the evaporation chamber is made of a heating partition. The heating unit and the heating partition are connected by a power transmission line. An olive-shaped stirrer is horizontally rotatably mounted on the evaporation chamber, and the gas outlet of the evaporation chamber is connected to the gas inlet of the condensation unit. The condensation unit includes a detachable condenser, and the condenser is installed in an inclined state. The liquid inlet and liquid outlet of the low-temperature cooling circulation pump are both connected to the condensation unit, and the coolant is circulated, which facilitates heating the cardamom to form steam, condensing the steam, and improving the fullness of heating.

[0005] Furthermore, a waste liquid outlet pipe with a valve is fixedly installed at the lower end of the evaporation chamber, and a sealing cover is hinged to the upper end of the evaporation chamber. The sealing cover is fitted with a transparent glass viewing window to facilitate observation of the heating status of the cardamom inside the evaporation chamber and to facilitate judgment on whether stirring is required based on the actual situation.

[0006] Furthermore, a monitoring instrument connected to the interior of the evaporation chamber is fixedly installed on the upper end of the sealing cover, and a vent valve is fixedly installed on one side of the evaporation chamber to facilitate the detection of the air pressure inside the evaporation chamber.

[0007] Furthermore, a knob is fixedly installed on the outer side of the evaporation chamber at the rotating shaft end of the stirrer, and an exhaust pipe is fixedly installed on the upper side of the evaporation chamber. The exhaust pipe is connected to the air inlet of the condensation unit, so as to facilitate the supply of steam into the condensation unit for condensation.

[0008] Furthermore, the heating unit is a heater with a heater control panel. The heater is located on one side of the evaporation chamber and is electrically connected to the heating partition through a power transmission line, which facilitates power supply to the heating partition and control of the heating power.

[0009] Furthermore, the low-temperature cooling circulation pump has a control panel on one side, and the low-temperature cooling circulation pump is located on one side of the heating unit. The upper end of the low-temperature cooling circulation pump is fixedly equipped with an inlet and an outlet for circulating liquid, which facilitates the supply of cooled circulating liquid to the condensing unit and improves the condensation effect.

[0010] Furthermore, the condensation unit includes a condenser installed at an angle. A water outlet is installed on the upper side of the upper end of the condenser, and a water inlet is installed on the lower side of the lower end. The water outlet and the water inlet, as well as the water inlet and the water outlet, are connected by pipes. A cooler filled with cooling material is fixedly installed at the condensate outlet of the condenser. A liquid collection tank is fixedly installed at the lower end of the cooler. An oil outlet with a valve is installed at the lower end of the liquid collection tank to facilitate secondary condensation of steam and improve the condensation effect.

[0011] Furthermore, a reflux pipe is fixedly installed on one side of the lower end of the cooler. The middle of the reflux pipe has an inverted U-shaped structure, and a shut-off valve and a one-way valve are respectively installed at both ends of the reflux pipe. The other end of the reflux pipe is connected to the evaporation chamber, so that the gas path forms a circulation, which facilitates the distillation of the mixture of cardamom and water in the evaporation chamber.

[0012] Furthermore, the condenser consists of a condenser tube, a sealing end, and a connecting end. The upper end of the condenser tube is open, and a sleeve is fixedly installed inside the lower end of the condenser tube. The sealing end is fitted onto the opening of the condenser tube. Connecting heads are installed in a circumferential array on one side of the sealing end and the connecting end. A heat exchange tube for steam passage is inserted between the connecting heads, and a plug pipe is fixedly installed on the other side of the connecting end. The plug pipe is inserted into the sleeve, which facilitates disassembly of the condenser and cleaning of internal scale or dirt after long-term use.

[0013] Beneficial effects: By adopting a spherical evaporation chamber and uniformly heating the bottom and perimeter through a heating partition, the heating uniformity and thoroughness of the cardamom-water mixture are improved. The addition of a manual stirrer and a viewing window facilitates flexible stirring according to actual conditions. Furthermore, the low-temperature cooling circulation pump circulates coolant to the condenser, improving condensation efficiency. In conjunction with the cooler, a secondary condensation effect is achieved, reducing the loss of volatile oils. The condenser also features a detachable structure, facilitating the cleaning of the internal heat exchange tubes and improving the extraction effect and stability during long-term use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the evaporation chamber in this utility model after a cross-section. Figure 3 This is a structural schematic diagram of the cooler location in this utility model; Figure 4 This is a schematic diagram of the structure of the condenser in this invention after an explosion and partial cross-section. In the diagram: 1. Low-temperature cooling circulating pump; 2. Evaporation chamber; 3. Heating partition; 4. Stirrer; 5. Waste liquid outlet pipe; 6. Sealing cap; 7. Viewing window; 8. Monitoring instrument; 9. Vent valve; 10. Knob; 11. Vent pipe; 12. Heater; 13. Liquid inlet; 14. Liquid outlet; 15. Condenser; 1501. Condenser tube; 1502. Sealing end; 1503. Connecting end; 1504. Sleeve; 1505. Connector; 1506. Heat exchange tube; 1507. Insert pipe; 16. Water outlet; 17. Water inlet; 18. Cooler; 19. Liquid collection tank; 20. Oil outlet; 21. Return pipe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 As shown, a cardamom volatile oil extraction and separation device includes an evaporation unit, a heating unit, a condensation unit, and a low-temperature cooling circulation pump 1. The evaporation unit includes a spherical evaporation chamber 2, and the main body of the evaporation chamber 2 is made of a heating partition 3. The heating unit and the heating partition 3 are connected by a power transmission line. An olive-shaped stirrer 4 is horizontally rotatably mounted on the evaporation chamber 2. The horizontal cross-section of the stirrer 4 is olive-shaped to improve the stirring effect of the stirrer 4 on the mixture inside the evaporation chamber 2. The gas outlet of the evaporation chamber 2 is connected to the gas inlet of the condensation unit. The condensation unit includes a detachable condenser 15, and the condenser 15 is installed in an inclined state to facilitate cleaning of the internal heat exchange position. The liquid inlet and outlet of the low-temperature cooling circulation pump 1 are both connected to the condensation unit, and the pump 1 cools the liquid inside the chamber. The liquid forms a circulation system. During use, a certain amount of pure water is mixed with cardamom powder and injected into evaporation chamber 2. The evaporation chamber is then sealed. The heating unit drives the heating partition 3, which heats the cardamom and water mixture inside evaporation chamber 2. Both the heating partition 3 and evaporation chamber 2 have spherical structures, which improves the uniformity of heating the internal mixture. During the heating process, if clumping is found in the mixture inside evaporation chamber 2, the stirrer 4 is manually rotated to stir the mixture inside evaporation chamber 2 to prevent scorching. The steam generated during heating enters the condensation unit. The low-temperature cooling circulation pump 1 continuously supplies circulating coolant to the interior of the cooling unit, which pre-cools and liquefies the steam, achieving the effect of volatile oil extraction.

[0017] As a technical optimization of this utility model, a waste liquid outlet pipe 5 with a valve is fixedly installed at the lower end of the evaporation chamber 2. This facilitates the discharge of residual waste liquid inside the evaporation chamber 2 after extraction, and also facilitates cleaning of the interior of the evaporation chamber 2. A sealing cover 6 is hinged to the upper end of the evaporation chamber 2 to improve the sealing performance of the evaporation chamber 2 during evaporation and extraction, preventing steam leakage. A viewing window 7 is inlaid with transparent glass on the sealing cover 6, allowing for direct observation of the interior of the evaporation chamber 2. If clumping occurs, it facilitates timely operation of the stirrer 4. A connection between the upper end of the sealing cover 6 and the interior of the evaporation chamber 2 is also fixedly installed. The monitoring instrument 8 is convenient for monitoring the gas pressure inside the evaporation chamber 2. A vent valve 9 is fixedly installed on one side of the evaporation chamber 2 to facilitate the discharge of gas inside the evaporation chamber 2 when the gas pressure is too high. A knob 10 is fixedly installed on the outer side of the evaporation chamber 2 at the rotating shaft end of the stirrer 4, which is convenient for manual operation to rotate the stirrer 4 and stir the material inside the evaporation chamber 2. An exhaust pipe 11 is fixedly installed on the upper side of the evaporation chamber 2 and is connected to the air inlet of the condensation unit. When the evaporation chamber 2 is heated inside, the gas evaporated from the material inside the evaporation chamber 2 enters the interior of the condensation unit through the exhaust pipe 11 for condensation.

[0018] As a technical optimization of this utility model, the heating unit is a heater 12 with a heater control panel. The heater 12 is located on one side of the evaporation chamber 2 and is electrically connected to the heating partition 3 through a power transmission line. Through the heater 12, it is convenient to control the power supply of the heating partition 3 and control the power of the heating partition 3 to achieve the effect of controlling the internal temperature of the evaporation chamber 2.

[0019] As a technical optimization of this utility model, the low-temperature cooling circulation pump 1 has a control panel on one side for easy control of the cooling of the circulating coolant. The low-temperature cooling circulation pump 1 is located on one side of the heating unit. The upper end of the low-temperature cooling circulation pump 1 has a liquid inlet 13 and a liquid outlet 14 fixedly installed. The condensing unit includes a condenser 15 installed at an angle. The upper side of the upper end of the condenser 15 has a water outlet 16 installed, and the lower side of the lower end has a water inlet 17 installed. The water outlet 16 and the liquid inlet 13, and the water inlet 17 and the liquid outlet 14 are all connected by pipes. The cooled liquid is circulated by a cryogenic cooling circulation pump 1. The coolant can be ethanol or water. The cryogenic liquid enters the condenser 15 and exchanges heat with the steam. The steam is pre-cooled and liquefied, and the liquefied solution enters the cooler 18. The cooler 18, which is filled with cooling material (PCM), is fixedly installed at the condensate outlet of the condenser 15. The liquid cooled by the condenser 15 enters the cooler 18. During condensation, some of the steam liquefies into liquid, while some of the steam remains. The vapor undergoes secondary condensation after condensation, meaning it is discharged from condenser 15. Unliquefied vapor is then further condensed by cooling materials to improve condensation efficiency, thereby increasing extraction yield and reducing volatile oil loss. A collection tank 19 is fixedly installed at the lower end of condenser 18. The liquid after secondary condensation enters the collection tank 19 for storage. The collection tank 19 is made of transparent material, allowing for easy external observation of the internal oil-water mixture. An oil outlet 20 with a valve is installed at the lower end of the collection tank 19. After distillation, the volatile oil from the cardamom can be extracted by controlling the valve at the oil outlet 20. Oil is discharged, followed by subsequent oil-water mixture separation. A return pipe 21 is fixedly installed on one side of the lower end of the cooler 18. The middle of the return pipe 21 has an inverted U-shaped structure, and a shut-off valve and a one-way valve are installed at both ends of the return pipe 21, respectively. The other end of the return pipe 21 is connected to the evaporation chamber 2, so that the condensing unit and the evaporation unit form a circulation through the return pipe 21. The one-way valve fixes the direction of steam flow, so that the steam passes through the condenser 15 and the cooler 18 in sequence. The inverted U-shaped structure reduces the amount of oil-water mixture carried by the steam and allows it to flow back into the evaporation chamber 2.

[0020] As a technical optimization of this utility model, the condenser 15 consists of a condenser tube 1501, a sealing end 1502, and a connecting end 1503. The upper end of the condenser tube 1501 is open, and a sleeve 1504 is fixedly installed inside the lower end of the condenser tube 1501. The sealing end 1502 is fitted into the opening of the condenser tube 1501. Connecting heads 1505 are arranged in a circumferential array on one side of the sealing end 1502 and the connecting end 1503. A heat exchange tube 1506 for steam passage is inserted between the connecting heads 1505. One end of the connecting head 1505 is equipped with a rotating nut for threaded connection with the end of the heat exchange tube 1506. A insertion pipe 1507 is fixedly installed on the other side of the connecting end 1503 and is inserted into the sleeve 1504. After long-term use, when it is necessary to... When cleaning the condenser 15, the heat exchange tube 1506 and the connecting end 1503 are pulled out from the inside of the condenser tube 1501 by pulling the sealing end 1502. Then, the threaded connection between the connecting end 1505 and the heat exchange tube 1506 is released, making it easy to remove each heat exchange tube 1506 for cleaning and unblocking. During installation, the heat exchange tube 1506 is installed between the connecting ends 1505, so that the sealing end 1502, the heat exchange tube 1506 and the connecting end 1503 form a whole and are inserted into the condenser tube 1501. The insertion pipe 1507 on the connecting end 1503 is inserted into the sleeve 1504, and the sealing end 1502 seals the end of the condenser tube 1501. Sealing rubber gaskets are installed at all insertion points to improve the overall sealing performance and facilitate disassembly.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for extracting and separating volatile oil from cardamom, characterized in that, The system includes an evaporation unit, a heating unit, a condensation unit, and a low-temperature cooling circulation pump (1). The evaporation unit includes a spherical evaporation chamber (2), and the main body of the evaporation chamber (2) is made of a heating partition (3). The heating unit and the heating partition (3) are connected by a power transmission line. An olive-shaped stirrer (4) is installed horizontally on the evaporation chamber (2), and the outlet of the evaporation chamber (2) is connected to the inlet of the condensation unit. The condensation unit includes a detachable condenser (15), and the condenser (15) is installed at an angle. The inlet and outlet of the low-temperature cooling circulation pump (1) are both connected to the condensation unit, and the coolant is circulated.

2. The cardamom volatile oil extraction and separation device as described in claim 1, characterized in that: The lower end of the evaporation chamber (2) is fixedly installed with a waste liquid outlet pipe (5) with a valve, and the upper end of the evaporation chamber (2) is hinged with a sealing cover (6), and a viewing window (7) is installed on the sealing cover (6) by inlaying transparent glass.

3. The cardamom volatile oil extraction and separation device as described in claim 2, characterized in that: The upper end of the sealing cover (6) is fixedly equipped with a monitoring instrument (8) that communicates with the interior of the evaporation chamber (2), and a venting valve (9) is fixedly installed on one side of the evaporation chamber (2).

4. The cardamom volatile oil extraction and separation device as described in claim 1, characterized in that: A knob (10) is fixedly installed on the outer side of the evaporation chamber (2) at the rotating shaft end of the stirrer (4), and an exhaust pipe (11) is fixedly installed on the upper side of the evaporation chamber (2), which is connected to the air inlet of the condensation unit.

5. The cardamom volatile oil extraction and separation device as described in claim 1, characterized in that: The heating unit is a heater (12) with a heater control panel. The heater (12) is located on one side of the evaporation chamber (2) and is electrically connected to the heating partition (3) through a power transmission line.

6. The cardamom volatile oil extraction and separation device as described in claim 1, characterized in that: The low-temperature cooling circulation pump (1) has a control panel on one side and is located on one side of the heating unit. The upper end of the low-temperature cooling circulation pump (1) is fixedly equipped with a liquid inlet (13) and a liquid outlet (14) for circulating liquid.

7. The cardamom volatile oil extraction and separation device as described in claim 6, characterized in that: The condenser (15) has an outlet (16) installed on the upper side of the upper end and an inlet (17) installed on the lower side of the lower end. The outlet (16) and the inlet (13) are connected by pipes, and the inlet (17) and the outlet (14) are connected by pipes. The condenser (15) has a cooler (18) filled with cooling material fixedly installed at the condensate outlet position. The cooler (18) has a liquid collection tank (19) fixedly installed at the lower end. The liquid collection tank (19) has an oil outlet (20) with a valve installed at the lower end.

8. The cardamom volatile oil extraction and separation device as described in claim 7, characterized in that: A return pipe (21) is fixedly installed on one side of the lower end of the cooler (18). The middle position of the return pipe (21) is an inverted U-shaped structure, and a shut-off valve and a one-way valve are respectively installed at both ends of the return pipe (21). The other end of the return pipe (21) is connected to the evaporation chamber (2).

9. The cardamom volatile oil extraction and separation device as described in claim 7, characterized in that: The condenser (15) consists of a condenser tube (1501), a sealing end (1502), and a connecting end (1503). The upper end of the condenser tube (1501) is open, and a sleeve (1504) is fixedly installed inside the lower end of the condenser tube (1501). The sealing end (1502) is sleeved on the opening of the condenser tube (1501). Connectors (1505) are installed in a circumferential array on one side of the sealing end (1502) and the connecting end (1503). A heat exchange tube (1506) for steam to pass through is inserted between the connectors (1505). A plug pipe (1507) is fixedly installed on the other side of the connecting end (1503). The plug pipe (1507) is inserted into the sleeve (1504).

Images