A tea beverage preparation system

Abstract

This invention discloses a tea beverage preparation system, comprising an extraction tank, an enzymatic hydrolysis tank, a buffer tank, and a high-temperature sterilization device. The extraction tank performs coarse extraction on dry tea leaves. The extracted tea liquor is then centrifuged and returned to the extraction tank for dynamic extraction. The clarified tea liquor undergoes microbial sterilization in the high-temperature sterilization device before being transported to the enzymatic hydrolysis tank for enzymatic transformation of specific substrates in the tea liquor. The enzymatically transformed tea liquor is then transported to the high-temperature sterilization device for enzyme inactivation and microbial sterilization. The sterilized enzymatically hydrolyzed tea liquor is then transported to a membrane filtration device for filtration. The filtered semi-finished product is stored in the buffer tank, awaiting final product blending. This system can produce high-quality, highly stable tea extract. The extract is clear and transparent, suitable for tea beverage preparation, resulting in products with high nutritional value and good taste. The system boasts a high level of automation and stable operation, significantly increasing product added value and enterprise profits.

Description

Technical Field

[0001] This invention relates to the field of brewing technology, specifically a tea preparation system. Background Technology

[0002] Tea is a product made from the fresh leaves of the tea plant using specific processing techniques. It contains no additives and is intended for human consumption. Tea is increasingly popular among consumers, but the steeping process makes it inconvenient to drink. Currently, tea powder extracted from tea leaves and then blended into tea drinks is gaining more popularity in the market. Traditional methods of preparing tea drinks from tea powder involve adding many other ingredients. While the taste is good, the nutritional content is low, the natural flavor of the product is not preserved, and it is inconvenient for preparing other tea drinks such as tea beer. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a tea preparation system that solves the technical problems existing in the preparation of tea drinks from tea powder as described in the background section.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a tea preparation system comprising an extraction tank, an enzymatic hydrolysis tank, a buffer tank, and a high-temperature sterilization device; the extraction tank performs coarse extraction on dry tea leaves, and the extracted tea liquor is centrifuged using a centrifuge device, then returned to the extraction tank for dynamic extraction until the tea tissue is fully extracted, resulting in a clear tea liquor; the clear tea liquor undergoes microbial sterilization in the high-temperature sterilization device and is then transported to the enzymatic hydrolysis tank, where specific substrates in the tea liquor are enzymatically transformed to remove astringent substances and large-molecule polysaccharides that easily form turbidity; the enzymatically transformed tea liquor is then transported to the high-temperature sterilization device for enzyme inactivation and microbial sterilization; the sterilized enzymatically hydrolyzed tea liquor is then transported to a membrane filtration device for filtration to remove suspended particles, yeast, and turbidity-causing macromolecules; the filtered semi-finished tea liquor is then transported to the buffer tank for storage, pending blending of the final product.

[0005] Furthermore, the extraction tank, centrifuge, enzymatic hydrolysis tank, buffer tank, membrane filtration device, and high-temperature sterilization device are all connected to the CIP cleaning tank to form a closed loop. The CIP cleaning tank is equipped with a cleaning water supply pipe and a hot water input pipe. The CIP cleaning tank uses a CIP power pump to first pump cleaning water into the extraction tank, enzymatic hydrolysis tank, and buffer tank for cleaning. After exiting the extraction tank, the cleaning water enters the centrifuge device's pipeline for cleaning and then returns to the extraction tank. The cleaning water used to clean the enzymatic hydrolysis tank merges with the cleaning water exiting the extraction tank again and then enters the high-temperature sterilization device, membrane filtration device, and then the buffer tank through pipelines. The cleaning water that directly enters the buffer tank through the CIP cleaning tank and the cleaning water that enters the buffer tank from the membrane filtration device flow back into the CIP cleaning tank through the return pipeline. After the same steps, the hot water in the hot water input pipe is used by the CIP power pump to clean the extraction tank, centrifuge, enzymatic hydrolysis tank, buffer tank, membrane filtration device, and high-temperature sterilization device after cleaning with cleaning water.

[0006] Furthermore, a third cleaning ball is provided in the buffer tank, and a discharge pump is provided on the discharge pipe of the buffer tank.

[0007] Furthermore, the extraction tank is equipped with a first feed hopper, a first variable frequency motor, and a first jacket; the extraction tank is equipped with a first cleaning ball and a first stirrer; the first variable frequency motor drives the first stirrer to stir; the first cleaning ball is connected to the pipeline connecting the CIP cleaning tank to the extraction tank.

[0008] Furthermore, an extraction delivery pump and a pressure pump are installed on the pipes at the bottom of the extraction tank; the tea soup is sent to the centrifuge device via the extraction delivery pump, and then to the high-temperature sterilization device via the extraction delivery pump and the pressure pump.

[0009] Furthermore, the enzymatic hydrolysis tank is equipped with a second feed hopper, a second variable frequency motor, and a second jacket; the enzymatic hydrolysis tank is equipped with a second cleaning ball and a second stirrer; the second variable frequency motor drives the second stirrer to stir; the second cleaning ball is connected to the pipeline connecting the CIP cleaning tank to the enzymatic hydrolysis tank; the enzymatically hydrolyzed tea soup is transported to the high-temperature sterilization device through an enzymatic hydrolysis delivery pump and a pressurizing pump installed on the output pipeline of the enzymatic hydrolysis tank.

[0010] Furthermore, the air inlets and drain outlets corresponding to the first and second jackets are respectively connected to the hot steam input pipe and the condensate discharge pipe.

[0011] Furthermore, the high-temperature sterilization device includes a triple plate heat exchanger, an inlet pipe, a high-temperature steam pipe, a hot water heating plate heat exchanger, a heat exchange circulation pump, an expansion tank, an ice water inlet pipe, and a hot water return pipe. The lower middle section inlet of the triple plate heat exchanger is connected to the tea inlet pipe, the lower middle section outlet is connected to the lower right section inlet, the lower right section outlet is connected to the upper middle section inlet via a loop pipe, and the upper middle section outlet is connected to the upper left section inlet. The tea inlet is fed from the pipe on the upper left section outlet into the enzymatic hydrolysis tank and the membrane filtration device, respectively. The lower left section inlet of the triple plate heat exchanger is connected to the ice water inlet pipe, and the lower left section outlet is connected to the hot water return pipe. Pipe connection; the upper right section inlet of the triple plate heat exchanger is connected to the connecting pipe of the hot water heating plate heat exchanger, and the upper right section outlet is connected to the inlet pipe. An expansion tank and a heat exchange circulation pump are installed on the inlet pipe. The expansion tank and the water after heat exchange are mixed by the heat exchange circulation pump and then fed into the hot water heating plate heat exchanger. The hot water heating plate heat exchanger is also connected to a high-temperature steam pipe through a pipe. The water entering from the inlet pipe exchanges heat with the high-temperature steam pipe in the hot water heating plate heat exchanger, and then exchanges heat at the right end of the triple plate heat exchanger to sterilize the tea soup at high temperature. Then, the water is cooled down in the middle and left sections of the triple plate heat exchanger in sequence.

[0012] Furthermore, the centrifuge device includes a disc centrifuge, a slag collection tank, and a slag pump; the inlet of the disc centrifuge is connected to the input pipe of the tea soup, and the outlet is connected to the return port at the top of the extraction tank; the disc centrifuge is equipped with a slag collection tank; and a slag pump is installed on the pipe below the slag collection tank.

[0013] Furthermore, the outlet pipes of the extraction tank and the enzymatic hydrolysis tank are connected to deoxygenated water delivery pipes; the deoxygenated water delivery pipes are connected to the disc centrifuge via a deoxygenated water delivery pump; the extraction tank, centrifuge device, enzymatic hydrolysis tank, buffer tank, membrane filtration device, and high-temperature sterilization device are equipped with interconnected carbon dioxide gas delivery pipes for purging the cleaned pipes.

[0014] Beneficial effects: The system of this invention can produce high-quality, highly stable tea extract. The extract is clear and transparent, and can be used to prepare tea drinks and tea beer, thus expanding its application range. The product quality is high, the taste is good, and the system has a high level of automation and stable operation. It can prevent microbial contamination that could lead to enzymatic hydrolysis failure or the production of undesirable flavor substances. It can also make full use of the heat exchange process to separately heat and cool the tea soup, minimizing energy consumption, reducing production costs, and greatly improving the added value of the product and the benefits to the enterprise. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the pipeline of the tea preparation system of the present invention.

[0016] Figure 2This is an enlarged diagram illustrating the heating principle of the extraction vessel and enzymatic hydrolysis vessel of the present invention.

[0017] Figure 3 This is an enlarged view of the flow principle of the tea preparation system of the present invention.

[0018] Figure 4 This is an enlarged diagram illustrating the cleaning system principle of the CIP cleaning tank of the present invention.

[0019] Figure 5 This is an enlarged view of the working principle of the centrifuge device of the present invention.

[0020] Figure 6 This is an enlarged schematic diagram of the high-temperature sterilization device of the present invention.

[0021] In the figure: extraction tank 1; first feed hopper 101; first variable frequency motor 102; first cleaning ball 103; first agitator 104; first jacket 105; extraction transfer pump 106; pressure pump 107; Centrifuge device 2; disc centrifuge 201; slag collection tank 202; slag pump 203; Enzymatic hydrolysis tank 3; second feed hopper 301; second variable frequency motor 302; second cleaning ball 303; second stirrer 304; second jacket 305; enzymatic hydrolysis delivery pump 306; Buffer tank 4; Third cleaning ball 401; Discharge pump 402; Membrane filtration device 5; CIP cleaning tank 6; cleaning water supply pipe 601; hot water inlet pipe 602; CIP power pump 603; High-temperature sterilization device 7; triple plate heat exchanger 701; water inlet pipe 702; high-temperature steam pipe 703; hot water heating plate heat exchanger 704; heat exchange circulation pump 705; expansion tank 706; ice water inlet pipe 707; hot water return pipe 708; Deoxygenated water delivery pipe 8; Deoxygenated water delivery pump 801; Carbon dioxide gas delivery pipe 9; Hot steam inlet pipe 10; condensate drain pipe 11. Detailed Implementation

[0022] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0023] like Figures 1 to 6As shown, a tea beverage preparation system includes an extraction tank 1, an enzymatic hydrolysis tank 3, a buffer tank 4, and a high-temperature sterilization device 7. The extraction tank 1 performs coarse extraction on dry tea leaves. The extracted tea liquor is centrifuged by a centrifuge device 2 and then returned to the extraction tank 1 for dynamic extraction until the tea tissue is fully extracted, resulting in a clear tea liquor. The clear tea liquor is then sterilized by the high-temperature sterilization device 7 and transported to the enzymatic hydrolysis tank 3 for enzymatic transformation of specific substrates in the tea liquor, removing astringent substances and large polysaccharide substances that easily form turbidity. The enzymatically transformed tea liquor is then transported to the high-temperature sterilization device 7 for enzyme inactivation and microbial sterilization. The sterilized enzymatically hydrolyzed tea liquor is then transported to a membrane filtration device 5 for filtration to remove suspended particles, yeast, and turbidity-causing macromolecules. The filtered semi-finished tea liquor is then transported to the buffer tank 4 for storage, awaiting final product blending. This system can be used to prepare tea beverages and tea beer, thus having a wider range of applications. The system of this invention can produce high-quality, highly stable tea extract. The extract is clear and transparent, and is used in the preparation of tea beverages. The products are highly nutritious, have a good taste, and retain the natural flavor of the products. The system has a high level of automation and stable operation, which greatly improves the added value of the products and the benefits of enterprises, thus gaining an advantageous position in the fierce competition of the global tea beverage and tea beer market.

[0024] As a preferred embodiment, such as Figure 1 , Figure 3 , Figure 4 and Figure 6As shown, the extraction tank 1, centrifuge device 2, enzymatic hydrolysis tank 3, buffer tank 4, membrane filtration device 5, and high-temperature sterilization device 7 are all connected to the CIP cleaning tank 6 to form a closed loop. The CIP cleaning tank 6 is equipped with a cleaning water supply pipe 601 and a hot water input pipe 602. The CIP cleaning tank 6 uses a CIP power pump 603 to pump cleaning water into the extraction tank 1, enzymatic hydrolysis tank 3, and buffer tank 4 for cleaning. After exiting the extraction tank 1, the cleaning water enters the pipeline of the centrifuge device 2 for cleaning, and then returns to the extraction tank 1. After cleaning the enzymatic hydrolysis tank 3, the cleaning water merges with the cleaning water that has exited the extraction tank 1 again, and then enters the CIP cleaning tank 4 through the pipeline. The water enters the high-temperature sterilization device 7 and the membrane filtration device 5; the membrane filtration device 5 adopts an ultrafiltration membrane structure, and then enters the buffer tank 4. The cleaning water that directly enters the buffer tank 4 through the CIP cleaning tank 6 and the cleaning water that enters the buffer tank 4 from the membrane filtration device 5 flows into the CIP cleaning tank 6 through the return pipeline. After the same steps, the hot water in the hot water input pipe 602 is used by the CIP power pump 603 to clean the extraction tank 1, centrifuge device 2, enzymatic hydrolysis tank 3, buffer tank 4, membrane filtration device 5 and high-temperature sterilization device 7 with hot water. The cleaning is performed at room temperature first and then with hot water, which can greatly improve the cleaning effect. The system can be precisely controlled by installing level gauges, level switches and temperature sensors on the extraction tank 1, enzymatic hydrolysis tank 3, buffer tank 4 and CIP cleaning tank 6, as well as flow meters and pressure sensors on the pipelines.

[0025] As a preferred embodiment, such as Figure 3 As shown, the buffer tank 4 is equipped with a third cleaning ball 401, and the discharge pipe of the buffer tank 4 is equipped with a discharge pump 402. The discharge pump 402 transports the tea soup stored in the buffer tank 4 to the outside for the preparation of the corresponding tea drinks.

[0026] As a preferred embodiment, such as Figure 2 As shown, the extraction tank 1 is equipped with a first feed hopper 101, a first variable frequency motor 102, and a first jacket 105; the extraction tank 1 is equipped with a first cleaning ball 103 and a first stirrer 104; the first variable frequency motor 102 drives the first stirrer 104 to stir; the first cleaning ball 103 is connected to the pipeline connecting the CIP cleaning tank 6 to the extraction tank 1. The first variable frequency motor 102 controls the rotation speed of the first stirrer 104 to be set between 40-50 r / min to prevent excessive shearing from damaging the tea tissue and producing too much fine powder.

[0027] As a preferred embodiment, such as Figure 3 As shown, an extraction transfer pump 106 and a pressure pump 107 are installed on the pipe at the bottom of the extraction tank 1; the tea soup is sent to the centrifuge device 2 through the extraction transfer pump 106, and then to the high-temperature sterilization device 7 through the extraction transfer pump 106 and the pressure pump 107.

[0028] As a preferred embodiment, such as Figure 2 and Figure 3 As shown, the enzymatic hydrolysis tank 3 is equipped with a second feed hopper 301, a second variable frequency motor 302, and a second jacket 305; the enzymatic hydrolysis tank 3 is equipped with a second cleaning ball 303 and a second stirrer 304; the second variable frequency motor 302 drives the second stirrer 304 to stir; the second cleaning ball 303 is connected to the pipe of the CIP cleaning tank 6 into the enzymatic hydrolysis tank 3; the enzymatically hydrolyzed tea soup is transported to the high-temperature sterilization device 7 through the enzymatic hydrolysis delivery pump 306 and the pressure pump 107 set on the output pipe of the enzymatic hydrolysis tank 3; the enzymatic hydrolysis tank 3 reduces the astringency and bitterness of the tea soup, making the taste more mellow and smooth, and can also degrade the large molecular polysaccharides in the tea soup that are prone to turbidity, greatly reducing the turbidity phenomenon during cooling. The air inlet and drain outlet of the first jacket 105 and the second jacket 305 are respectively connected to the hot steam input pipe 10 and the condensate discharge pipe 11; heating is carried out through the first jacket 105 and the second jacket 305 to ensure the uniformity of heating and avoid local overheating that could cause the material to scorch and thus reduce product quality.

[0029] As a preferred embodiment, such as Figure 1 , Figure 4 and Figure 6As shown, the high-temperature sterilization device 7 includes a triple plate heat exchanger 701, an inlet pipe 702, a high-temperature steam pipe 703, a hot water heating plate heat exchanger 704, a heat exchange circulation pump 705, an expansion tank 706, an ice water inlet pipe 707, and a hot water return pipe 708; the lower middle section inlet of the triple plate heat exchanger 701 is connected to the tea inlet pipe, the lower middle section outlet is connected to the lower right section inlet, the lower right section outlet is connected to the upper middle section inlet through a loop pipe, and the upper middle section outlet is connected to the upper left section inlet; the tea inlet is connected to the enzymatic hydrolysis tank 3 and the membrane filtration device 5 respectively through the pipe on the upper left section outlet; the lower left section inlet of the triple plate heat exchanger 701 is connected to the ice water inlet pipe 707, and the lower left section outlet is connected to the hot water return pipe 708; The upper right section inlet of the triple plate heat exchanger 701 is connected to the connecting pipe of the hot water heating plate heat exchanger 704, and the upper right section outlet is connected to the inlet pipe 702. An expansion tank 706 and a heat exchange circulation pump 705 are installed on the inlet pipe 702. The heat exchange circulation pump 705 mixes the expansion tank 706 and the heat-exchanged water before feeding it into the hot water heating plate heat exchanger 704. The hot water heating plate heat exchanger 704 is also connected to a high-temperature steam pipe 703 via a pipe. The water entering from the inlet pipe 702 exchanges heat with the high-temperature steam pipe 703 in the hot water heating plate heat exchanger 704, and then exchanges heat again at the right end of the triple plate heat exchanger 701, sterilizing the tea soup at high temperature. Cooling then occurs sequentially in the middle and left sections of the triple plate heat exchanger 701. This high-temperature sterilization device 7 can prevent microbial contamination that could lead to enzymatic failure or the production of undesirable flavor substances. It also fully utilizes the heat exchange process to separately heat and cool the tea soup, minimizing energy consumption and reducing production costs.

[0030] As a preferred embodiment, such as Figure 5 As shown, the centrifuge device 2 includes a disc centrifuge 201, a slag collection tank 202, and a slag pump 203. The inlet of the disc centrifuge 201 is connected to the input pipe of the tea soup, and the outlet is connected to the return port at the top of the extraction tank 1. The disc centrifuge 201 is equipped with a slag collection tank 202. The slag pump 203 is installed on the pipe below the slag collection tank 202. Insoluble solids are discharged through the slag pump 203 during the centrifugation process by the disc centrifuge 201 to obtain tea soup with high clarity.

[0031] As a preferred embodiment, such as Figure 1 and Figure 3As shown, the outlet pipes of the extraction tank 1 and the enzymatic hydrolysis tank 3 are connected to deoxygenated water delivery pipes 8; the deoxygenated water delivery pipes 8 are connected to the disc centrifuge 201 through the deoxygenated water delivery pump 801. The deoxygenated water can work with the CIP cleaning system to remove dissolved oxygen in the water, prevent the oxidation of flavor substances in the extract, and improve the extraction effect; the extraction tank 1, centrifuge device 2, enzymatic hydrolysis tank 3, buffer tank 4, membrane filtration device 5, and high temperature sterilization device 7 are equipped with connected carbon dioxide gas delivery pipes 9, which are used to purge the cleaned pipes, improve the cleaning effect, and ensure the quality of the extraction.

[0032] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A tea preparation system, characterized in that, The system includes an extraction tank, an enzymatic hydrolysis tank, a buffer tank, and a high-temperature sterilization device. The extraction tank performs a coarse extraction of dry tea leaves. The extracted tea liquor is then centrifuged and returned to the extraction tank for dynamic extraction until the tea tissue is fully extracted, resulting in a clear tea liquor. The clear tea liquor undergoes microbial sterilization in the high-temperature sterilization device and is then transferred to the enzymatic hydrolysis tank for enzymatic transformation of specific substrates, removing astringent substances and large polysaccharides that easily cause turbidity. The enzymatically transformed tea liquor is then transferred to the high-temperature sterilization device for enzyme inactivation and microbial sterilization. Finally, the sterilized enzymatically hydrolyzed tea liquor is transferred to a membrane filtration device for filtration to remove suspended particles, yeast, and turbidity-causing macromolecules. The filtered semi-finished tea soup is transferred to a buffer tank for storage, pending blending into the final product.

2. The tea preparation system according to claim 1, characterized in that, The extraction tank, centrifuge, enzymatic hydrolysis tank, buffer tank, membrane filtration device, and high-temperature sterilization device are all connected to the CIP cleaning tank to form a closed loop. The CIP cleaning tank is equipped with a cleaning water supply pipe and a hot water input pipe. The CIP cleaning tank uses a CIP power pump to first pump cleaning water into the extraction tank, enzymatic hydrolysis tank, and buffer tank for cleaning. The cleaning water exiting the extraction tank enters the centrifuge device's pipeline for cleaning and then returns to the extraction tank. The cleaning water used to clean the enzymatic hydrolysis tank merges with the cleaning water exiting the extraction tank again and then enters the high-temperature sterilization device, membrane filtration device, and then the buffer tank through pipelines. The cleaning water that directly enters the buffer tank from the CIP cleaning tank and the cleaning water that enters the buffer tank from the membrane filtration device flow back into the CIP cleaning tank through the return pipeline. After the same steps, the hot water in the hot water input pipe is used by the CIP power pump to clean the extraction tank, centrifuge, enzymatic hydrolysis tank, buffer tank, membrane filtration device, and high-temperature sterilization device after cleaning with the cleaning water.

3. The tea preparation system according to claim 1, characterized in that, The buffer tank is equipped with a third cleaning ball, and the discharge pipe of the buffer tank is equipped with a discharge pump.

4. The tea preparation system according to claim 1, characterized in that, The extraction tank is equipped with a first feed hopper, a first variable frequency motor, and a first jacket; the extraction tank is equipped with a first cleaning ball and a first stirrer; the first variable frequency motor drives the first stirrer to stir; the first cleaning ball is connected to the pipeline connecting the CIP cleaning tank to the extraction tank.

5. The tea preparation system according to claim 4, characterized in that, The extraction tank is equipped with an extraction delivery pump and a pressure pump on the pipe at the bottom of the tank; the tea soup is sent to the centrifuge device through the extraction delivery pump, and then to the high-temperature sterilization device through the extraction delivery pump and the pressure pump.

6. The tea preparation system according to claim 5, characterized in that, The enzymatic hydrolysis tank is equipped with a second feed hopper, a second variable frequency motor, and a second jacket; the enzymatic hydrolysis tank is equipped with a second cleaning ball and a second stirrer; the second variable frequency motor drives the second stirrer to stir; the second cleaning ball is connected to the pipeline connecting the CIP cleaning tank to the enzymatic hydrolysis tank; the enzymatically hydrolyzed tea soup is transported to the high-temperature sterilization device through an enzymatic hydrolysis delivery pump and a pressurizing pump installed on the output pipeline of the enzymatic hydrolysis tank.

7. The tea preparation system according to claim 6, characterized in that, The air inlet and drain outlet of the first jacket and the second jacket are respectively connected to the hot steam input pipe and the condensate discharge pipe.

8. The tea preparation system according to claim 1, characterized in that, The high-temperature sterilization device includes a triple plate heat exchanger, an inlet pipe, a high-temperature steam pipe, a hot water heating plate heat exchanger, a heat exchange circulation pump, an expansion tank, an ice water inlet pipe, and a hot water return pipe. The lower middle section inlet of the triple plate heat exchanger is connected to the tea inlet pipe, the lower middle section outlet is connected to the lower right section inlet, the lower right section outlet is connected to the upper middle section inlet via a loop pipe, and the upper middle section outlet is connected to the upper left section inlet. Tea inlet is fed from the pipes at the upper left section outlet into the enzymatic hydrolysis tank and the membrane filtration device, respectively. The lower left section inlet of the triple plate heat exchanger is connected to the ice water inlet pipe, and the lower left section outlet is connected to the hot water return pipe. The upper right section inlet of the triple plate heat exchanger is connected to the connecting pipe of the hot water heating plate heat exchanger, and the upper right section outlet is connected to the inlet pipe. An expansion tank and a heat exchange circulation pump are installed on the inlet pipe. The expansion tank and the water after heat exchange are mixed by the heat exchange circulation pump and then fed into the hot water heating plate heat exchanger. The hot water heating plate heat exchanger is also connected to a high-temperature steam pipe through a pipe. The water entering from the inlet pipe exchanges heat with the high-temperature steam pipe in the hot water heating plate heat exchanger, and then exchanges heat at the right end of the triple plate heat exchanger to sterilize the tea soup at high temperature. Then, the water is cooled down in the middle and left sections of the triple plate heat exchanger in sequence.

9. The tea preparation system according to claim 1, characterized in that, The centrifuge device includes a disc centrifuge, a slag collection tank, and a slag pump; the inlet of the disc centrifuge is connected to the input pipe of the tea soup, and the outlet is connected to the return port at the top of the extraction tank; the disc centrifuge is equipped with a slag collection tank; and a slag pump is installed on the pipe below the slag collection tank.

10. A tea preparation system according to claim 1, characterized in that, The extraction tank and the enzymatic hydrolysis tank are connected to a deoxygenated water delivery pipe at their outlets; the deoxygenated water delivery pipe is connected to a disc centrifuge via a deoxygenated water delivery pump; the extraction tank, centrifuge, enzymatic hydrolysis tank, buffer tank, membrane filtration device, and high-temperature sterilization device are equipped with interconnected carbon dioxide gas delivery pipes for purging the cleaned pipes.

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