A multifunctional extraction device

Abstract

The utility model discloses a multifunctional extraction device, including extraction tank, heat exchanger, steam pipeline, liquid inlet main pipe, aroma extraction pipe and condenser, be equipped with spray ball, spray subassembly and stirring subassembly in the extraction tank, be equipped with filter plate in the bottom in the extraction tank, be equipped with the jacket around the outer wall of extraction tank, be connected with the jacket liquid return pipe, the side branch pipe, the delivery pump, the jacket liquid inlet pipe and the cleaning pipe on the liquid inlet main pipe, the cold water inlet pipe still can be on-off side branch has on the jacket liquid inlet pipe, can be on-off side branch has the cold water return pipe on the jacket liquid return pipe, the side branch pipe is connected with the buffer tank, and the cleaning pipe and spray ball can be on-off connection, and the export end of liquid inlet main pipe and spray subassembly can be on-off connection, be equipped with the collecting tank and vacuum pump on aroma extraction pipe. The utility model discloses can solve the problem of the large amount of aroma loss in the tea extraction process, and can realize four functions of extraction function, aroma extraction function, fermentation function and fresh-keeping function, and the function is more comprehensive.

Description

Technical Field

[0001] This utility model relates to the field of extraction, and in particular to a multifunctional extraction device. Background Technology

[0002] The product containing the freshness-locking cap is pure jasmine tea powder without any additives. To achieve the product label claims and ensure sufficient aroma, the dosage of tea powder in the freshness-locking cap needs to be increased, which significantly increases product costs. Furthermore, the tea extraction technology currently used by contract manufacturers is the outdated water extraction technique, which inherently results in a significant loss of aroma during the extraction process. To reduce product costs and address the issue of substantial aroma loss during tea extraction, research into tea aroma extraction equipment is necessary. Additionally, existing extraction devices only have extraction capabilities, offering limited functionality. Utility Model Content

[0003] The purpose of this invention is to provide a multifunctional extraction device that can solve the problem of significant aroma loss during tea extraction and can realize four functions: extraction, aroma extraction, fermentation, and preservation, making it more comprehensive.

[0004] The purpose of this utility model is achieved as follows: a multifunctional extraction device includes an extraction tank, a heat exchanger, a steam pipeline, a liquid inlet main pipe, an aroma extraction pipe, and a condenser. The extraction tank has an openable and closable feed port and liquid outlet at its top and bottom, respectively. Inside the extraction tank, rotating spray balls, spray components, and stirring components are arranged at intervals from top to bottom. A filter plate is located at the bottom of the extraction tank, and a jacket surrounds the outer wall of the extraction tank. The heat exchanger has a first heat exchange pipeline and a second heat exchange pipeline. The first heat exchange pipeline is connected in series to the steam pipeline, and the second heat exchange pipeline is connected in series to the liquid inlet main pipe. A jacketed return pipe, a bypass pipe, and a delivery pump are sequentially connected to the liquid inlet main pipe between its inlet end and the heat exchanger. A jacketed inlet pipe and a cleaning pipe are connected to the main inlet pipe between its outlet end and the heat exchanger. The jacketed inlet pipe and the jacketed return pipe are connected to the jacket in a way that allows for switching on and off. A cold water inlet pipe is also connected to the jacketed inlet pipe in a way that allows for switching on and off, and a cold water return pipe is connected to the jacketed return pipe in a way that allows for switching on and off. A buffer tank is connected to the bypass pipe. The cleaning pipe is connected to the spray ball in a way that allows for switching on and off. The outlet end of the main inlet pipe is connected to the spray assembly in a way that allows for switching on and off. The inlet end of the aroma extraction pipe is connected to the top of the extraction tank in a way that allows for switching on and off. A condenser is connected in series to the aroma extraction pipe. A collection tank and a vacuum pump are sequentially arranged on the aroma extraction pipe between the condenser and the outlet end of the aroma extraction pipe. The bottom of the collection tank is provided with an openable and closable collection port.

[0005] In a preferred embodiment of this utility model, the bottom end of the extraction tank is an open end, and a bottom cover is detachably and sealed to the open end. A filter plate is detachably disposed on the bottom cover, and a receiving space is formed between the filter plate and the bottom surface of the bottom cover. The liquid outlet is disposed on the bottom surface of the bottom cover. A cleaning return pipe is detachably connected to the liquid outlet. The cleaning return pipe can be connected to the main liquid inlet pipe and is located between the inlet end of the main liquid inlet pipe and the side pipe.

[0006] In a preferred embodiment of the present invention, one side of the bottom cover is hinged to the bottom end of the extraction tank, and the other side of the bottom cover is detachably connected to the bottom end of the extraction tank, and a sealing structure is provided between the bottom cover and the bottom end of the extraction tank; a cylinder is also provided on the side of the extraction tank, the bottom of the cylinder body is hinged to the side wall of the extraction tank, and the piston rod of the cylinder is hinged to the bottom cover, for driving the bottom cover to flip open and close.

[0007] In a preferred embodiment of the present invention, the outlet end of the aroma extraction tube is connected to the outside atmosphere. A first one-way valve is also provided on the aroma extraction tube and located between the collection tank and the vacuum pump. The first one-way valve allows air to flow unidirectionally from the collection tank to the vacuum pump. A second one-way valve is also provided on the jacket return pipe. The second one-way valve allows liquid to flow unidirectionally from the jacket to the inlet main pipe.

[0008] In a preferred embodiment of the present invention, the cavity of the vacuum pump can also be connected to a lubrication pipe for introducing lubricating water.

[0009] In a preferred embodiment of the present invention, the inlet end of the steam pipeline is used to introduce steam, and its outlet end is connected to the outside atmosphere. A regulating valve and a drain valve are respectively provided on the steam pipeline near its inlet end and outlet end.

[0010] In a preferred embodiment of the present invention, the stirring assembly includes a central block and a plurality of stirring blades circumferentially spaced on the central block. The central block is fixedly connected to a stirring rod, the upper end of which protrudes from the top of the extraction tank and is connected to a stirring drive device. The stirring drive device is used to drive the stirring rod to rotate.

[0011] In a preferred embodiment of this utility model, the spray assembly includes a hollow connecting block, a plurality of horizontal pipes circumferentially spaced on the connecting block, and a plurality of nozzles on the horizontal pipes. The outer ends of the horizontal pipes are closed and their inner ends are connected to the connecting block. The connecting block is fixedly connected to and connected to a hollow pipe. The hollow pipe extends out from the top of the extraction tank and is connected to a spray driving device. The spray driving device is used to drive the hollow pipe to rotate. The upper end of the stirring rod can pass through the bottom through hole of the connecting block and the hollow pipe in sequence and extend out from the top of the hollow pipe. The stirring rod and the bottom through hole can be in relative rotatable sealing contact, and the stirring rod and the top of the hollow pipe can be in relative rotatable sealing contact. The outlet end of the liquid inlet main pipe can be connected to the hollow pipe.

[0012] In a preferred embodiment of the present invention, a plurality of liquid inlet holes are provided circumferentially at intervals on the top side wall of the hollow tube, and a fixing sleeve is provided on the top outer side of the hollow tube in a relatively slidable sealing sleeve. A docking hole is provided on the side wall of the fixing sleeve, and the outlet end of the liquid inlet tube is connected to the docking hole. The docking hole can dock and communicate with the corresponding liquid inlet hole during the rotation of the hollow tube.

[0013] In a preferred embodiment of this utility model, a first valve and a second valve are respectively provided on the liquid inlet main pipe near its inlet and outlet ends, a third valve is provided at the liquid outlet, a fourth valve is provided on the jacket return pipe between the second check valve and the cold water return pipe, a fifth valve is provided on the jacket inlet pipe near the liquid inlet main pipe, a sixth valve is provided on the cold water inlet pipe, a seventh valve is provided on the cold water return pipe, an eighth valve is provided on the cleaning pipe, a ninth valve is provided on the aroma extraction pipe between the condenser and the collection tank, and a tenth valve is provided at the collection port.

[0014] As described above, this multifunctional extraction device, through the cooperation of its components, can achieve four functions: extraction, low-temperature aroma extraction, fermentation, and preservation. Its functions are more comprehensive and its versatility stronger. By incorporating a heat exchanger, steam and pure water can be exchanged to heat the pure water to different required temperatures. A buffer tank is connected to the main inlet pipe, allowing pure water to enter first and then be transported by a pump. The buffer tank also acts as a vent, preventing gases in the water from affecting the heating uniformity in the heat exchanger. The separately rotating spray and stirring components ensure more uniform mixing of materials during extraction and aroma extraction, while the spray component ensures more even hot water spraying, improving extraction and aroma extraction effects. In fermentation, the stirring component helps to evenly distribute the materials, and the spray component ensures more even hot water spraying, improving fermentation efficiency. A jacket allows hot water to be introduced for fermentation and to improve material distribution, while cold water can be introduced for preservation. By connecting the collection tank and the vacuum pump in series, the aroma components can be more effectively extracted into the collection tank, improving the yield. Additionally, the top of the extraction tank is equipped with a rotating spray ball for convenient cleaning. Attached Figure Description

[0015] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0016] Figure 1 A schematic diagram of the structure of the multifunctional extraction device provided by this utility model.

[0017] Explanation of icon numbers:

[0018] 1. Extraction tank; 11. Feed inlet; 12. Liquid outlet; 121. Third valve;

[0019] 13. Spray ball; 131. Cleaning pipe; 132. Eighth valve;

[0020] 14. Sprinkler assembly; 141. Connecting block; 142. Horizontal pipe; 143. Sprinkler head;

[0021] 15. Mixing assembly; 151. Center block; 152. Mixing blades;

[0022] 16. Bottom cover; 161. Filter plate;

[0023] 17. Cylinder;

[0024] 18. Stirring rod; 181. Stirring drive device;

[0025] 19. Hollow pipe; 191. Spray drive unit; 192. Fixing sleeve;

[0026] 2. Jacket; 21. Jacket inlet pipe; 211. Fifth valve; 22. Jacket return pipe; 221. Fourth valve; 222. Second check valve; 23. Cold water inlet pipe; 231. Sixth valve; 24. Cold water return pipe; 241. Seventh valve;

[0027] 3. Heat exchanger;

[0028] 4. Steam piping; 41. Regulating valve; 42. Steam trap;

[0029] 5. Main inlet pipe; 51. First valve; 52. Bypass pipe; 53. Buffer tank; 54. Transfer pump; 55. Second valve;

[0030] 6. Aroma extraction tube; 61. Ninth valve; 62. First check valve;

[0031] 7. Condenser; 71. Cold water inlet; 711. Valve; 72. Cold water outlet;

[0032] 8. Collection tank; 81. Collection port; 82. Tenth valve;

[0033] 9. Vacuum pump; 91. Lubrication pipe; 92. Valve. Detailed Implementation

[0034] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0035] like Figure 1As shown, this application provides a multifunctional extraction device, including an extraction tank 1, a heat exchanger 3, a steam pipeline 4, a liquid inlet main pipe 5, an aroma extraction pipe 6, and a condenser 7. The top and bottom of the extraction tank 1 are respectively provided with an openable and closable feeding port 11 and a liquid outlet 12. Inside the extraction tank 1, from top to bottom, there are respectively arranged a rotating spray ball 13, a spray assembly 14, and a stirring assembly 15. A filter plate 161 is provided at the bottom of the extraction tank 1, and a jacket 2 is provided around the outer wall of the extraction tank 1. The heat exchanger 3 has a first heat exchange pipeline and a second heat exchange pipeline. The first heat exchange pipeline is connected in series to the steam pipeline 4, and the second heat exchange pipeline is connected in series to the liquid inlet main pipe 5. On the liquid inlet main pipe 5, between its inlet end and the heat exchanger 3, a jacket return pipe 22, a bypass pipe 52, and a transfer pump 54 are sequentially connected. The jacketed inlet pipe 21 and the cleaning pipe 131 are connected between the outlet end and the heat exchanger 3. The jacketed inlet pipe 21 and the jacketed return pipe 22 are connected to the jacket 2 in a way that can be switched on and off. A cold water inlet pipe 23 is connected to the jacketed inlet pipe 21 in a way that can be switched on and off. A cold water return pipe 24 is connected to the jacketed return pipe 22 in a way that can be switched on and off. A buffer tank 53 is connected to the bypass pipe 52. The cleaning pipe 131 is connected to the spray ball 13 in a way that can be switched on and off. The outlet end of the inlet pipe 5 is connected to the spray assembly 14 in a way that can be switched on and off. The inlet end of the aroma extraction pipe 6 is connected to the top of the extraction tank 1 in a way that can be switched on and off. A condenser 7 is connected in series with the aroma extraction pipe 6. A collection tank 8 and a vacuum pump 9 are sequentially arranged on the aroma extraction pipe 6 between the outlet end of the condenser 7 and the aroma extraction pipe 6. A collection port 81 that can be opened and closed is provided at the bottom of the collection tank 8.

[0036] The jacketed return pipe 22, bypass pipe 52, and jacketed inlet pipe 21 are all connected to the main inlet pipe 5. When bypassing, the cleaning pipe 131 can be directly connected to the main inlet pipe 5 or to the jacketed inlet pipe 21, thus connecting to the main inlet pipe 5 via the jacketed inlet pipe 21. This device can perform four functions: extraction, low-temperature aroma extraction, fermentation, and preservation. These four functions are generally used independently, each targeting different materials. However, depending on the process requirements, aroma extraction can be performed on the material first, followed by extraction of the tea residue to obtain the extracted tea liquor. The specific usage method depends on the actual needs.

[0037] When it is necessary to extract materials such as tea, the tea leaves are added into the extraction tank 1 through the feed port 11. Pure water enters the buffer tank 53 through the liquid inlet pipe 5, and then enters the heat exchanger 3 under the action of the transfer pump 54 to exchange heat with steam. The hot water obtained after heat exchange is sprayed through the spray assembly 14. The stirring assembly 15 can stir the tea leaves. Finally, the tea soup is filtered through the filter plate 161, and the filtered tea soup can be collected through the liquid outlet 12 to complete the extraction.

[0038] When aroma extraction is required, the aroma material is added into the extraction tank 1 through the feeding port 11. Pure water first enters the buffer tank 53 through the liquid inlet pipe 5, and then enters the heat exchanger 3 under the action of the transfer pump 54 to exchange heat with steam. The low-temperature water obtained after heat exchange is sprayed through the spray assembly 14. The stirring assembly 15 can stir the aroma material. The vacuum pump 9 is used to draw the extraction tank 1 into the required vacuum, so that the low-temperature water in the extraction tank 1 becomes water vapor. The aroma material and water vapor are mixed and enter the condenser 7 through the aroma extraction pipe 6, where they are condensed into liquid substances and collected in the collection tank 8.

[0039] When fermentation of materials and ingredients is required, the materials and ingredients are added to the extraction tank 1 through the feeding port 11. Pure water first enters the buffer tank 53 through the liquid inlet pipe 5, and then enters the heat exchanger 3 under the action of the transfer pump 54 to exchange heat with steam. The hot water obtained after heat exchange enters the jacket 2 through the jacket liquid inlet pipe 21. The heat preservation effect of the jacket 2 can play a role in dissolving the materials and ingredients. The stirring effect of the stirring component 15 can also play a role in dissolving the materials (the stirring component 15 can be set to stir periodically at set intervals during the fermentation process), so that the materials and ingredients are more dispersed in the aqueous solution. The hot water returns to the buffer tank 53 through the jacket liquid return pipe 22 and circulates under the action of the transfer pump 54 to maintain the temperature of the jacket 2, thus realizing the fermentation effect.

[0040] When it is necessary to preserve the material, the material is added to the extraction tank 1 through the feeding port 11. Cold water enters the jacket 2 through the cold water inlet pipe 23 and flows out through the cold water return pipe 24, which can keep the extraction tank 1 at a low temperature and achieve the preservation effect.

[0041] After the corresponding functions are completed, when cleaning is required, pure water first enters the buffer tank 53 through the liquid inlet pipe 5, and then enters the heat exchanger 3 under the action of the transfer pump 54 to exchange heat with steam. The hot water obtained after heat exchange enters the spray ball 13 through the cleaning pipe 131. The spray ball 13 rotates and sprays to clean the extraction tank 1.

[0042] Therefore, the multifunctional extraction device of this application can achieve four functions—extraction, low-temperature aroma extraction, fermentation, and preservation—through the cooperation of its various components, making it more comprehensive and versatile. By setting up a heat exchanger 3, heat exchange between steam and pure water can be used to heat the pure water to different temperature requirements. By connecting a buffer tank 53 to the main inlet pipe 5, pure water first enters the buffer tank 53 and is then transported by the delivery pump 54. The buffer tank 53 also serves to vent air, preventing gases present in the water from affecting the heating uniformity in the heat exchanger 3. With the separately rotatable spray assembly 14 and stirring assembly 15, in the extraction and aroma extraction functions, the stirring assembly 15 can more evenly stir the materials, and the spray assembly 14 can more evenly spray hot water, which is beneficial for improving the extraction and aroma extraction effects. In the fermentation function, the stirring of the stirring assembly 15 also helps to evenly dissolve the materials, and the spray assembly 14 can more evenly spray hot water, improving the fermentation effect. By setting up jacket 2, hot water can be introduced to achieve fermentation and improve the material processing effect, while cold water can be introduced to achieve preservation. Connecting the collection tank 8 and vacuum pump 9 in series ensures that aroma components are more effectively extracted into the collection tank 8, increasing the yield. In addition, a rotating spray ball 13 is installed at the top of the extraction tank 1 for convenient cleaning.

[0043] Optionally, the bottom end of the extraction tank 1 is an open end, and a bottom cover 16 is detachably and sealed to the open end. A filter plate 161 is detachably provided on the bottom cover 16, and a receiving space is formed between the filter plate 161 and the bottom surface of the bottom cover 16. The liquid outlet 12 is provided on the bottom surface of the bottom cover 16.

[0044] For example, the bottom cover 16 can be arranged according to Figure 1 The diagram shows a V-shaped cover, which creates a receiving space between the filter plate 161 and the bottom of the bottom cover 16, allowing the liquid filtered by the filter plate 161 to be contained within this space. The bottom cover 16 can also be other shapes, such as an arc-shaped cover.

[0045] Alternatively, a cleaning return pipe can be detachably connected to the outlet 12. Figure 1 (Not shown in the image), the cleaning return pipe can be connected in parallel to the main inlet pipe 5 and is located between the inlet end of the main inlet pipe 5 and the bypass pipe 52. When cleaning is not required, the cleaning return pipe can be removed, and the outlet 12 can be closed by a valve. It can be opened again when the filtrate needs to be discharged from the outlet 12. When cleaning is required, the cleaning return pipe is connected to the outlet 12 and then connected in parallel to the main inlet pipe 5 to form a circulating cleaning system.

[0046] Alternatively, one side of the bottom cover 16 is hinged to the bottom of the extraction tank 1, and the other side of the bottom cover 16 is detachably connected to the bottom of the extraction tank 1 (e.g., by snap-fit ​​or by fasteners), and a sealing structure is provided between the bottom cover 16 and the bottom of the extraction tank 1; a cylinder 17 is also provided on the side of the extraction tank 1, the bottom of the cylinder body of the cylinder 17 is hinged to the side wall of the extraction tank 1, and the piston rod of the cylinder 17 is hinged to the bottom cover 16 for driving the bottom cover 16 to flip open and close.

[0047] The cylinder 17 has its body facing upwards and its piston rod facing downwards. The bottom cover 16 can be flipped open and closed by extending and retracting the piston rod. When the extraction tank 1 needs cleaning after the corresponding function is completed, the inside of the extraction tank 1 is cleaned using the spray ball 13, and then the bottom opening of the extraction tank 1 is opened by flipping the bottom cover 16 using the cylinder 17 to drain the cleaning liquid. The filter plate 161 can also be removed for cleaning. Compared to manually opening the bottom cover 16, opening the bottom cover 16 using the cylinder 17 is more convenient and safer. Of course, other connection methods can also be used between the bottom cover 16 and the extraction tank 1; this embodiment is only for illustrative purposes.

[0048] Optionally, the outlet end of the aroma extraction tube 6 is connected to the outside atmosphere. A first one-way valve 62 is also provided on the aroma extraction tube 6, located between the collection tank 8 and the vacuum pump 9. The first one-way valve 62 allows air to flow unidirectionally from the collection tank 8 to the vacuum pump 9, so as to prevent outside atmosphere from being drawn into the collection tank 8 after the vacuum pump 9 stops working. A second one-way valve 222 is also provided on the jacket return pipe 22. The second one-way valve 222 allows liquid to flow unidirectionally from the jacket 2 to the inlet main pipe 5, so as to ensure that the liquid flows in the direction of the delivery pump 54 and prevent liquid backflow.

[0049] Alternatively, the cavity of the vacuum pump 9 can be connected to a lubrication pipe 91 for introducing lubricating water. A valve 92 can be provided on the lubrication pipe 91 to control the on / off state. Lubricating water can be introduced into the cavity of the vacuum pump 9 through the lubrication pipe 91 to prevent the impeller in the cavity from being damaged by dry friction and to prevent damage to the impeller and the cavity.

[0050] The structure of the condenser 7 described above is an existing structure. It can be understood that the condenser 7 includes a second heat exchange pipeline and a third heat exchange pipeline. The two ends of the second heat exchange pipeline are connected to the cold water inlet 71 and the cold water outlet 72 on the condenser 7. The third heat exchange pipeline is connected in series to the aroma extraction pipe 6. A valve 711 can also be installed at the cold water inlet to control the on / off state of the pipe.

[0051] Furthermore, the inlet end of the steam pipe 4 is used to introduce steam, and its outlet end is connected to the outside atmosphere. A regulating valve 41 and a steam trap 42 are respectively installed on the steam pipe 4 near its inlet end and outlet end. The regulating valve 41 can be used to precisely control the temperature of the heated pure water to heat the pure water to the set temperature.

[0052] Optionally, the stirring assembly 15 includes a central block 151 and a plurality of stirring blades 152 circumferentially spaced on the central block 151. The central block 151 is fixedly connected to a stirring rod 18. The upper end of the stirring rod 18 extends through the top of the extraction tank 1 and is connected to a stirring drive device 181, which is used to drive the stirring rod 18 to rotate.

[0053] The stirring rod 18 is set vertically, and the bottom end of the stirring rod 18 is fixed to the center block 151. An installation hole is provided at the top center of the extraction tank 1, through which the stirring rod 18 can pass. The stirring drive device 181 can be a motor or other drive device, as long as it can drive the stirring rod 18 to rotate, so as to drive the stirring assembly 15 to rotate around the stirring rod 18.

[0054] Furthermore, the spray assembly 14 includes a hollow connecting block 141, a plurality of horizontal pipes 142 circumferentially spaced on the connecting block 141, and a plurality of nozzles 143 on the horizontal pipes 142. The outer ends of the horizontal pipes 142 are closed and their inner ends are connected to the connecting block 141. The connecting block 141 is fixedly connected to and connected to a hollow pipe 19. The hollow pipe 19 extends out from the top of the extraction tank 1 and is connected to the spray driving device 191. The spray driving device 191 is used to drive the hollow pipe 19 to rotate. The upper end of the stirring rod 18 can pass through the bottom through hole of the connecting block 141 and the hollow pipe 19 in sequence and extend out from the top of the hollow pipe 19. The stirring rod 18 and the bottom through hole can be in relative rotatable sealed contact, and the stirring rod 18 and the top of the hollow pipe 19 can be in relative rotatable sealed contact. The outlet end of the liquid inlet main pipe 5 can be connected to the hollow pipe 19.

[0055] Each nozzle 143 has its nozzle facing downwards to spray liquid downwards. A hollow tube 19 is vertically positioned, its bottom end connected to a connecting block 141, and its upper end protruding through the aforementioned mounting hole and connected to a spray drive device 191. The spray drive device 191 can be a motor or other drive device, as long as it can rotate the hollow tube 19, thereby rotating the spray assembly 14 around the hollow tube 19. A sealing ring can be provided between the bottom through-hole of the connecting block 141 and the stirring rod 18, and a sealing ring can be provided between the top of the stirring rod 18 and the top of the hollow tube 19 to ensure sealing at all points. In an optional example, the top of the hollow tube 19 can also be a closed end with a through-hole for the stirring rod 18 to pass through in a sealed manner. The rotation of the stirring assembly 15 and the spray assembly 14 is independent, driven separately by the stirring drive device 181 and the spray drive device 191, respectively.

[0056] Since the aforementioned liquid inlet main pipe 5 needs to be connected to the hollow pipe 19 to deliver water to the spray assembly 14, and the hollow pipe 19 needs to rotate, in order to ensure that the rotation of the hollow pipe 19 does not affect the connection with the liquid inlet main pipe 5, multiple liquid inlet holes are provided circumferentially at intervals on the top side wall of the hollow pipe 19. A fixing sleeve 192 is provided on the top outside of the hollow pipe 19 in a relatively slidable sealing sleeve. A docking hole is opened on the side wall of the fixing sleeve 192. The outlet end of the liquid inlet main pipe 5 is connected to the docking hole. The docking hole can dock and communicate with the corresponding liquid inlet hole during the rotation of the hollow pipe 19.

[0057] The fixed sleeve 192 and the hollow tube 19 form a slip ring structure, which can rotate relative to each other. During use, the fixed sleeve 192 remains stationary, while the hollow tube 19 rotates, aligning its corresponding inlet with the mating hole on the fixed sleeve 192. This allows liquid to enter the hollow tube 19 through the mating hole and the corresponding inlet, then through the connecting block 141 into each horizontal tube 142, and finally out through each nozzle 143. Upper and lower sealing rings are respectively provided above and below each inlet between the fixed sleeve 192 and the hollow tube 19 to ensure a tight seal.

[0058] The aforementioned spray ball 13 is a rotating spray ball that utilizes the hydraulic power of the cleaning fluid to rotate its nozzles, generating a high-speed impact force to directly flush away residues on the tank wall, achieving 360° coverage without dead angles for more thorough cleaning. The specific structure of the spray ball 13 is an existing structure, with an internal structure similar to a water turbine impeller. When a certain flow rate and pressure of liquid flows through it, the reaction force of the jet propels it to rotate, spraying it outwards at a certain angle with a significant impact force through its gaps and nozzles.

[0059] Furthermore, to facilitate the switching on and off of various points, a first valve 51 and a second valve 55 are respectively provided on the liquid inlet main pipe 5 near its inlet and outlet ends; a third valve 121 is provided at the liquid outlet 12; a fourth valve 221 is provided on the jacket return pipe 22 between the second one-way valve 222 and the cold water return pipe 24; a fifth valve 211 is provided on the jacket inlet pipe 21 near the liquid inlet main pipe 5 (when the cleaning pipe 131 is connected to the jacket inlet pipe 21, it is specifically connected to the jacket inlet pipe 21 and located between the liquid inlet main pipe 5 and the fifth valve 211); a sixth valve 231 is provided on the cold water inlet pipe 23; a seventh valve 241 is provided on the cold water return pipe 24; an eighth valve 132 is provided on the cleaning pipe 131; a ninth valve 61 is provided on the aroma extraction pipe 6 between the condenser 7 and the collection tank 8; and a tenth valve 82 is provided at the collection port 81.

[0060] The aforementioned transfer pump 54 can be a centrifugal pump, and the first valve 51 to the tenth valve 82 can be pneumatic valves, or other types of valves can be used as needed. The entire extraction device should comply with food hygiene design, with 304 and 316 stainless steel used for metal materials in contact with the product, and EPDM, silicone, and Teflon used for sealing materials, greatly improving the hygiene and safety of the food.

[0061] The maximum capacity of the entire extraction tank 1, the maximum vacuum value that can be achieved, and the maximum and minimum temperatures that can be used to heat and cool the material are all determined according to the actual process and requirements. For example, in a specific case, the maximum capacity of the extraction tank 1 is 50L, the maximum vacuum value that can be achieved is -0.08MPa, the material can be heated to a maximum of 95℃, and the material can be cooled to a minimum of 2℃.

[0062] More specifically, the usage methods of each function of this multifunctional extraction device are as follows:

[0063] (1) Extraction function

[0064] Tea leaves are fed into extraction tank 1 through inlet 11. First valve 51 is opened, and pure water enters buffer tank 53 via inlet pipe 5. Pump 54 draws water from buffer tank 53 and sends it to heat exchanger 3. Steam is heated by regulating valve 41 according to the set temperature to obtain hot water (the hot water temperature depends on the extraction requirements, for example, 90℃). The hot water passes through second valve 55 and hollow pipe 19 to spray assembly 14. Spray assembly 14 rotates under the drive of spray drive device 191, ensuring even spraying. Simultaneously, stirring assembly 15 is driven to rotate by stirring drive device 181 for stirring. Finally, the tea liquor is filtered through filter plate 161, and the filtered liquid (i.e., tea liquor) is collected in bottom cover 16, completing the extraction process. The collected tea liquor can then be removed from outlet 12 of extraction tank 1 by connecting appropriate pipes or placing appropriate containers.

[0065] (2) Low-temperature aroma extraction function (water distillation)

[0066] Aroma materials are fed into extraction tank 1 through feed port 11. First valve 51 is opened, and pure water enters buffer tank 53 through inlet pipe 5. Pump 54 draws water from buffer tank 53 and sends it to heat exchanger 3. Steam is heated by regulating valve 41 according to a low-temperature setting to obtain low-temperature water. This low-temperature water passes through second valve 55 and hollow pipe 19 to spray assembly 14. Spray assembly 14 rotates under the drive of spray drive device 191, ensuring uniform spraying. Simultaneously, stirring assembly 15 stirs the water. Vacuum pump 9, based on the required boiling point of the broth in extraction tank 1, creates a vacuum in extraction tank 1, lowering the boiling point of water and causing the low-temperature water to turn into steam. The aroma components and steam mix and enter condenser 7, condensing into a liquid substance, which is then collected in collection tank 8. The collected liquid substance can then be removed from collection port 81 of collection tank 8 by connecting appropriate pipes or placing appropriate containers.

[0067] Since aroma components are generally easily decomposed by heat, this embodiment uses low-temperature water soaking to extract aroma materials, resulting in better aroma extraction. The low-temperature water used here is generally between 35-45℃.

[0068] (3) Fermentation function

[0069] Materials and ingredients (such as bacterial cultures) are fed into the extraction tank 1 through the feeding port 11. The stirring assembly 15 ensures uniform mixing. The first valve 51 is opened, and pure water enters the buffer tank 53 through the main inlet pipe 5. A centrifugal pump draws water from the buffer tank 53 and sends it to the heat exchanger 3. Steam is heated by the regulating valve 41 according to the set temperature. The heated water enters the jacket 2 through the fifth valve 211, then returns to the buffer tank 53 through the fourth valve 221 and the second check valve 222. The water is then circulated by the transfer pump 54, maintaining the temperature of the jacket 2 (the specific temperature depends on the fermentation requirements), thus achieving material fermentation. Additionally, after fermentation, the stirring assembly 15 can be used to break the emulsion.

[0070] (4) Preservation function

[0071] Material is fed into extraction tank 1 through feed port 11. Sixth valve 231 is opened, allowing cold water to enter jacket 2 and flow back to cold water return pipe 24 through seventh valve 241, maintaining the temperature of extraction tank 1 at a certain low temperature (2-4℃) to preserve the material. Generally, cold water inlet pipe 23 and cold water return pipe 24 can be connected to a cold water storage tank, and a corresponding circulation pump is installed on either cold water inlet pipe 23 or cold water return pipe 24 to achieve circulation.

[0072] After the above four functions are completed, the device can be cleaned: open the first valve 51, pure water enters the buffer tank 53, the transfer pump 54 draws water from the buffer tank 53 and enters the heat exchanger 3, steam heats the pure water according to the temperature setting through the regulating valve 41 to obtain hot water, the hot water enters the spray ball 13 through the eighth valve 132, driving the spray ball 13 to rotate and rinse the extraction tank 1. At the same time, a cleaning return pipe can be connected between the liquid outlet 12 of the extraction tank 1 and the liquid inlet main pipe 5. The transfer pump 54 and the cleaning return pipe can also be used to realize the circulation cleaning of cleaning drugs.

[0073] In summary, the multifunctional extraction device of this embodiment combines four functions into one. It can be used not only for extraction but also for tea aroma extraction, fermentation, or preservation, meeting the needs of normal experiments or production and overcoming the limitation of single-function pilot-scale extraction equipment. The four functions and the cleaning process each have the following advantages:

[0074] High-efficiency extraction function: It can extract various plant materials. The pure water is heated to the set temperature through a precise temperature control system (heat exchanger 3 + steam regulating valve). Combined with the spray drive device 191, multiple spray nozzles 143 are evenly distributed for rinsing. The stirring component 15 is equipped to enhance the extraction efficiency. Finally, the tea residue is separated by the filter plate 161 to achieve the preparation of high-purity tea soup.

[0075] Low-temperature aroma extraction (water distillation): Vacuum pump 9 dynamically adjusts the system pressure, allowing extraction tank 1 to operate at low temperatures (<100℃). Combined with a condensation recovery system, volatile aroma components are fully preserved, avoiding high-temperature damage and ensuring efficient capture of aroma substances.

[0076] Constant temperature fermentation control: The innovative jacket 2 temperature control circulation system (buffer tank 53 + centrifugal pump + heat exchanger 3 form a heat medium circulation) provides precise temperature control of the fermentation environment. Combined with dynamic stirring to optimize the distribution of strains, it ensures that the fermentation process is stable and controllable.

[0077] Low-temperature preservation and storage: Equipped with an independent refrigerant circulation system, the material inside the tank can be temporarily stored at a low temperature of 2-4℃ through the jacket 2 refrigerant for rapid cooling, effectively inhibiting the proliferation of microorganisms and maintaining the activity of raw materials for more than 8 hours.

[0078] Automated cleaning system: It integrates a 360° rotating spray system (i.e., spray ball 13) and a cleaning return pipeline, which can perform both hot water physical rinsing and deep sterilization by switching cleaning agents. The CIP online cleaning system improves the equipment cleaning efficiency by up to 70%.

[0079] The above are merely illustrative embodiments of this utility model and are not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A multifunctional extraction device, characterized by, It includes an extraction tank, a heat exchanger, a steam pipeline, a liquid inlet main pipe, an aroma extraction pipe, and a condenser. The top and bottom of the extraction tank are respectively provided with an openable and closable feeding port and a liquid outlet. Inside the extraction tank, spray balls, spray components, and stirring components that can be rotated are arranged from top to bottom. A filter plate is provided at the bottom of the extraction tank, and a jacket is provided around the outer wall of the extraction tank. The heat exchanger has a first heat exchange pipeline and a second heat exchange pipeline. The first heat exchange pipeline is connected in series with the steam pipeline, and the second heat exchange pipeline is connected in series with the liquid inlet main pipe. A jacket return pipe, a bypass pipe, and a delivery pump are sequentially connected to the liquid inlet main pipe between its inlet end and the heat exchanger. A jacket inlet pipe and a cleaning pipe are connected to the liquid inlet main pipe between its outlet end and the heat exchanger. The jacket inlet pipe and the jacket return pipe are connected to the jacket in a way that allows for switching. A cold water inlet pipe is also connected to the jacket inlet pipe in a way that allows for switching. A cold water return pipe is connected to the jacket return pipe in a way that allows for switching. The bypass pipe is connected to a buffer tank, the cleaning pipe is connected to the spray ball in a slewable manner, and the outlet end of the liquid inlet main pipe is connected to the spray assembly in a slewable manner. The inlet end of the aroma extraction tube is connected to the top of the extraction tank in a way that allows it to be switched on and off. The condenser is connected in series with the aroma extraction tube. A collection tank and a vacuum pump are sequentially arranged on the aroma extraction tube and between the condenser and the outlet end of the aroma extraction tube. The bottom of the collection tank is provided with an openable and closable collection port.

2. The multifunctional extraction device as described in claim 1, characterized in that, The bottom end of the extraction tank is an open end, and a bottom cover is detachably and sealed to the open end. The filter plate is detachably mounted on the bottom cover, and a receiving space is formed between the filter plate and the bottom surface of the bottom cover. The liquid outlet is located on the bottom surface of the bottom cover. A cleaning return pipe is detachably connected to the outlet, and the cleaning return pipe can be connected in parallel to the main inlet pipe and is located between the inlet end of the main inlet pipe and the bypass pipe.

3. The multifunctional extraction device as described in claim 2, characterized in that, One side of the bottom cover is hinged to the bottom end of the extraction tank, and the other side of the bottom cover is detachably connected to the bottom end of the extraction tank, and a sealing structure is provided between the bottom cover and the bottom end of the extraction tank; A cylinder is also provided on the side of the extraction tank. The bottom of the cylinder body is hinged to the side wall of the extraction tank, and the piston rod of the cylinder is hinged to the bottom cover to drive the bottom cover to flip open and close.

4. The multifunctional extraction device as described in claim 1, characterized in that, The outlet end of the aroma extraction tube is connected to the outside atmosphere. A first one-way valve is also provided on the aroma extraction tube and between the collection tank and the vacuum pump. The first one-way valve allows air to flow unidirectionally from the collection tank to the vacuum pump. A second one-way valve is also provided on the return pipe of the jacket, which allows liquid to flow unidirectionally from the jacket to the main inlet pipe.

5. The multifunctional extraction device as described in claim 1, characterized in that, The vacuum pump chamber can also be connected to a lubrication pipe for introducing lubricating water.

6. The multifunctional extraction device as described in claim 1, characterized in that, The inlet end of the steam pipeline is used to introduce steam, and its outlet end is connected to the outside atmosphere. A regulating valve and a steam trap are respectively installed on the steam pipeline near its inlet end and outlet end.

7. The multifunctional extraction device as described in claim 1, characterized in that, The stirring assembly includes a central block and a plurality of stirring blades spaced circumferentially on the central block. The central block is fixedly connected to a stirring rod, the upper end of which protrudes from the top of the extraction tank and is connected to a stirring drive device, which drives the stirring rod to rotate.

8. The multifunctional extraction device as described in claim 7, characterized in that, The spray assembly includes a hollow connecting block, a plurality of horizontal tubes spaced circumferentially on the connecting block, and a plurality of nozzles on the horizontal tubes. The outer ends of the horizontal tubes are closed and their inner ends are connected to the connecting block. The connecting block is fixedly connected to and connected to a hollow tube. The hollow tube extends from the top of the extraction tank and is connected to a spray driving device. The spray driving device is used to drive the hollow tube to rotate. The upper end of the stirring rod can pass through the bottom through hole of the connecting block and the hollow tube in sequence and exit from the top end of the hollow tube. The stirring rod and the bottom through hole can be in relative rotational sealing contact, and the stirring rod and the top end of the hollow tube can be in relative rotational sealing contact. The outlet end of the liquid inlet main pipe can be connected to the hollow tube.

9. The multifunctional extraction device as described in claim 8, characterized in that, Multiple liquid inlet holes are circumferentially spaced on the top side wall of the hollow tube. A fixing sleeve is slidably sealed on the top outside of the hollow tube. A docking hole is opened on the side wall of the fixing sleeve. The outlet end of the liquid inlet main tube is connected to the docking hole. The docking hole can connect and communicate with the corresponding liquid inlet hole during the rotation of the hollow tube.

10. The multifunctional extraction device as described in claim 4, characterized in that, A first valve and a second valve are respectively provided on the main liquid inlet pipe near its inlet and outlet ends. A third valve is provided at the liquid outlet. A fourth valve is provided on the jacket return pipe between the second one-way valve and the cold water return pipe. A fifth valve is provided on the jacket inlet pipe near the main liquid inlet pipe. A sixth valve is provided on the cold water inlet pipe. A seventh valve is provided on the cold water return pipe. An eighth valve is provided on the cleaning pipe. A ninth valve is provided on the aroma extraction pipe between the condenser and the collection tank. A tenth valve is provided at the collection port.

Images