A beer reverse osmosis membrane dealcoholization device

Abstract

The utility model discloses a kind of beer reverse osmosis membrane dealcoholization equipment, including buffer tank, is equipped with discharge port and feed port, and store beer liquor;Circulating pump, for circulating beer liquor;High-pressure pump group, for beer liquor in buffer tank is sent to circulating pump place;Cooler, for cooling;Filter module, for dealcoholization filtering to beer liquor;Beer liquor flows out from discharge port, sequentially after high-pressure pump group, circulating pump and cooler enter filter module, filter module is used to separate beer liquor into permeate and concentrated solution, permeate flows out through pipeline, part of concentrated solution returns to buffer tank from feed port, another part of concentrated solution returns to circulating pump through pipeline.The utility model carries out dealcoholization using the combination of concentration, washing and filtering, dispensing mode, and in dealcoholization process, using the mode of external circulation and internal circulation synergistic effect, can effectively improve the dealcoholization efficiency of beer liquor.

Description

Technical Field

[0001] This utility model relates to the field of beer dealcoholization, and in particular to a beer reverse osmosis membrane dealcoholization device. Background Technology

[0002] Beer is an indispensable alcoholic beverage in people's lives today. The advent of non-alcoholic beer has met the needs of people who cannot consume alcohol, such as drivers, children, women, and athletes. Due to people's increased awareness of health, they hope to avoid the harm of alcohol to their health as much as possible while enjoying nutritious and delicious beer. In addition, some diseases prohibit alcohol, or people worry about gaining weight after drinking. Therefore, non-alcoholic beer is very suitable for social occasions.

[0003] Currently, the main industrial methods for producing non-alcoholic beer are physical dealcoholization and restricted fermentation. Physical dealcoholization involves the same saccharification and fermentation processes as normal beer production, without altering the original production technology. It can produce qualified non-alcoholic beer in a few hours to a day, offering high flexibility and adaptability to rapidly changing markets. The most common method for physical dealcoholization is vacuum distillation to remove alcohol. However, vacuum distillation requires heating (e.g., 40℃-60℃), which can lead to significant losses in flavor compounds, taste, and freshness in the dealcoholized beer. Furthermore, vacuum distillation equipment is expensive, resulting in high operating costs. The basic principle of restricted fermentation is to control the degree of wort fermentation, that is, to limit the conversion of fermentable sugars into alcohol, ensuring that the alcohol content in the final beer is below the requirements of non-alcoholic beer standards. Limited fermentation is a simple and low-cost process with minimal loss of flavor compounds. However, it has drawbacks: the saccharification and fermentation processes require significant changes and high precision in process control; it also results in a relatively high content of non-fermentable residual sugars, retaining a sweet taste; and the production cycle from saccharification to fermentation is long (at least 20 days), making it impossible to immediately produce qualified non-alcoholic beer to meet market demands. Therefore, neither physical dealcoholization nor limited fermentation can guarantee a good flavor in non-alcoholic beer while achieving efficient dealcoholization. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing beer dealcoholization processes cannot simultaneously guarantee dealcoholization efficiency and beer flavor. This invention provides a beer reverse osmosis membrane dealcoholization device that utilizes a filter module to achieve dealcoholization filtration of the beer liquid. The filter module removes excess alcohol while retaining flavor compounds in the beer, and a circulation pump accelerates the dealcoholization filtration process to effectively improve beer dealcoholization efficiency.

[0005] To solve the above-mentioned technical problems, this utility model discloses a beer reverse osmosis membrane de-alcoholization device, comprising:

[0006] A buffer tank, equipped with an outlet and an inlet, is used to store beer liquid;

[0007] A circulation pump is used to circulate beer liquid.

[0008] A high-pressure pump set is used to pump the beer liquid in the buffer tank to the circulation pump;

[0009] Cooler, used for cooling;

[0010] The filter module is used for de-alcoholizing and filtering beer liquid;

[0011] Beer liquid can flow out from the outlet, pass through the high-pressure pump group, the circulation pump and the cooler in sequence, and then enter the filter module. The filter module is used to separate the beer liquid into permeate and concentrate. The permeate can flow out from the pipeline, a part of the concentrate can return to the buffer tank from the inlet, and another part of the concentrate can return to the circulation pump through the pipeline.

[0012] Using the above technical solution, the filtration module separates the incoming beer into a permeate containing water and alcohol, and a concentrate that protects flavor compounds. The permeate is directly discharged, while the concentrate returns to the de-alcoholizing equipment to re-particulate in the de-alcoholizing filtration process. After passing through the high-pressure pump set, circulation pump, cooler, and filtration module, a portion of the concentrate in the buffer tank returns to the buffer tank, forming an external circulation. The remaining concentrate, after passing through the circulation pump, cooler, and filtration module, returns to the circulation pump, forming an internal circulation. The synergistic effect of the external and internal circulation effectively improves the de-alcoholizing efficiency of the beer. The cooler is used to cool the beer flowing towards the filtration module to prevent flavor degradation at high temperatures.

[0013] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a beer reverse osmosis membrane de-alcoholization device. The buffer tank includes a tank body and a cover body, which are sealed together. The outlet and the inlet are both located on the tank body, and the tank body stores beer liquid. A carbon dioxide pipe is connected to the cover body, and the carbon dioxide pipe is used to introduce external carbon dioxide into the buffer tank.

[0014] Using the above technical solution, when beer comes into contact with oxygen, it is oxidized, which leads to a deterioration in beer flavor. Therefore, a lid is installed on the tank and the two are sealed together to prevent the atmosphere from directly entering the buffer tank, thereby reducing the contact between beer and the atmosphere. At the same time, carbon dioxide, as an inert gas, can reduce the oxidation of beer liquid by air, thus ensuring beer quality.

[0015] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a beer reverse osmosis membrane de-alcoholization device, wherein a pumping pipe is connected between the discharge port and the input end of the high-pressure pump group, and a deoxygenated water pipe is provided on the pumping pipe for introducing external deoxygenated water into the pumping pipe.

[0016] Using the above technical solution, deoxygenated water can be pumped into the external and internal circulation processes of beer liquid through pumping pipes. Deoxygenated water is added to wash and filter the beer liquid while the permeate flows out. The method of adding deoxygenated water to wash and filter the beer liquid while permeating can effectively improve the de-alcoholization efficiency of the beer liquid, and the total consumption of deoxygenated water is small, with the total consumption being 1-2 times the original beer liquid volume.

[0017] According to another specific embodiment of the present invention, the present invention discloses a beer reverse osmosis membrane de-alcoholization device, wherein the cooler is further provided with a refrigerant inlet and a refrigerant outlet, and external refrigerant can enter the cooler through the refrigerant inlet and then be discharged through the refrigerant outlet.

[0018] By adopting the above technical solution, the cooler enables the entire de-alcoholization process to operate at low temperatures, preventing the beer from undergoing thermal denaturation and preserving its original flavor, while also reducing heat consumption and making it more energy-efficient.

[0019] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a beer reverse osmosis membrane dealcoholization device. The dealcoholization device further includes a connecting plate, on which a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve, and a seventh valve are provided. The first valve can be connected to the fourth valve, the sixth valve can be connected to the second valve or the fifth valve, and the third valve can be connected to the seventh valve. The first valve is connected to a permeate pipe for outflowing permeate, the second valve is connected to a concentrate pipe for outflowing concentrate, and the third valve is connected to a beer input pipe for beer to enter. The fourth valve is connected to the permeate outlet of the filter module through a pipe, the fifth valve is connected to the feed inlet through a pipe, the sixth valve is connected to the concentrate outlet of the filter module through a pipe, and the seventh valve is connected to the discharge outlet through a pipe.

[0020] The pipeline between the discharge port and the high-pressure pump set is equipped with the fourteenth valve and the thirteenth valve in sequence, the pipeline between the high-pressure pump set and the circulating pump is equipped with the tenth valve, and the deoxygenated water pipe is equipped with the eighth valve.

[0021] Using the above technical solution, seven valves are installed on the connecting plate. The flow direction of the beer liquid can be controlled by combining the connections of these valves. When the first valve is connected to the fourth valve, the permeate from the filter module flows out through the permeate pipe. When the sixth valve is connected to the second valve, the concentrate from the filter module flows out through the concentrate pipe. When the sixth valve is connected to the fifth valve, the concentrate from the filter module flows back to the buffer tank. When the third valve is connected to the seventh valve, beer is also injected into the buffer tank.

[0022] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a beer reverse osmosis membrane de-alcoholization device, wherein the filter module includes a plurality of filter de-alcoholization cylinders connected in series and / or in parallel, and a reverse osmosis membrane for filtering beer liquid is provided in the filter de-alcoholization cylinder.

[0023] Using the above technical solution, a reverse osmosis membrane is installed inside the filtration and de-alcoholization cylinder. A high-pressure pump set provides a high-pressure environment. Under high pressure, water and ethanol molecules overcome the natural osmotic pressure and pass through the reverse osmosis membrane in the filtration module, while other large molecules and flavor substances are retained on the non-permeable side, i.e., the concentration side. The substances on the concentration side return to the reverse osmosis membrane de-alcoholization equipment to participate in the beer de-alcoholization cycle, effectively improving the de-alcoholization efficiency of the beer liquid. Multiple filtration modules can be connected in parallel or in series to increase beer production.

[0024] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a beer reverse osmosis membrane de-alcoholization device, wherein the high-pressure pump group is mainly composed of multiple high-pressure pumps connected in series, and the pressure range of the high-pressure pump group is 45 bar-55 bar.

[0025] By adopting the above technical solution, the high-pressure pump set can increase pressure while reducing energy consumption.

[0026] According to another specific embodiment of the present invention, the present invention discloses a beer reverse osmosis membrane dealcoholization device. When the third valve and the seventh valve are connected and both the third valve and the seventh valve are open, the beer liquid can flow in from the beer inlet pipe, pass through the third valve and the seventh valve in sequence, and then enter the buffer tank through the outlet, thereby realizing the beer liquid feeding process.

[0027] When the first valve is connected to the fourth valve, the fifth valve is connected to the sixth valve, and the first, fourth, fifth, sixth, tenth, thirteenth, and fourteenth valves are all open, the beer liquid in the buffer tank can flow into the filter module from the outlet. The permeate separated by the filter module can flow out from the permeate pipe after passing through the fourth valve and the first valve in sequence. A portion of the concentrate separated by the filter module can return to the buffer tank from the inlet after passing through the sixth valve and the fifth valve in sequence. A portion of the concentrate can return to the circulation pump, thereby realizing the beer liquid concentration process.

[0028] When the first valve is connected to the fourth valve, the fifth valve is connected to the sixth valve, and the first, fourth, fifth, sixth, eighth, tenth, thirteenth, and fourteenth valves are all open, the beer liquid in the buffer tank can flow into the filter module from the outlet. The deoxygenated water can enter the pumping pipeline, and then enter the filter module after passing through the high-pressure pump set, the circulation pump, and the cooler in sequence. The permeate separated by the filter module can flow out from the permeate pipe after passing through the fourth valve and the first valve in sequence. A portion of the concentrate separated by the filter module can return to the buffer tank from the inlet after passing through the sixth valve and the fifth valve in sequence, and a portion of the concentrate can return to the circulation pump, thereby realizing the washing and filtration process of the beer liquid.

[0029] When the eighth, thirteenth, and fourteenth valves are all open, the deoxygenated water can enter the pumping pipeline, and then pass through the thirteenth and fourteenth valves in sequence to enter the buffer tank through the discharge port, thereby realizing the beer liquid blending process.

[0030] By adopting the above technical solution, the connection relationship between various valves on the connecting plate can be adjusted, and the opening and closing status of the valves can be controlled, thereby changing the flow direction of the beer liquid in the pipeline. The beer dealcoholization filtration process mainly includes four steps: feeding, concentration, washing and filtering, and blending. Different steps require adjustments to the flow direction of the beer liquid; therefore, by controlling the opening and closing status of the valves and the connection method, the beer liquid can be made to flow along a set direction.

[0031] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a beer reverse osmosis membrane de-alcoholization device, wherein the temperature control range of the cooler is 0℃-8℃.

[0032] Using the above technical solution, the lower the temperature, the better the beer quality can be guaranteed without freezing. However, excessively low temperatures will lead to a decrease in beer de-alcoholization efficiency. Therefore, taking into account both beer quality and beer de-alcoholization efficiency, the cooler temperature is set within the range of 0℃ to 8℃, which can ensure both good beer quality and high beer de-alcoholization efficiency.

[0033] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a beer reverse osmosis membrane de-alcoholization device, wherein the reverse osmosis membrane is a spiral wound polyamide composite film.

[0034] By adopting the above technical solution, a highly selective reverse osmosis membrane is selected, thus ensuring that the flavor compounds in beer are not lost. Attached Figure Description

[0035] Figure 1 A schematic diagram of a beer reverse osmosis membrane de-alcoholization device provided in an embodiment of this application is shown. Detailed Implementation

[0036] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0037] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0039] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0040] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0042] In some embodiments, see Figure 1 This application provides a beer reverse osmosis membrane de-alcoholization device, including a connecting plate 10, a buffer tank 20, a high-pressure pump set 30, a circulating pump 40, a cooler 50, and a filter module 60.

[0043] The connecting plate 10 is equipped with a first valve V1, a second valve V2, a third valve V3, a fourth valve V4, a fifth valve V5, a sixth valve V6, and a seventh valve V7. The first valve V1 can be connected to the fourth valve V4, the sixth valve V6 can be connected to the second valve V2 or the fifth valve V5, and the third valve V3 can be connected to the seventh valve V7. The first valve V1 is connected to a permeate pipe P1 for the permeate to flow out, the second valve V2 is connected to a concentrate pipe P2 for the concentrate to flow out, and the third valve V3 is connected to a beer input pipe P3 for the beer liquid to enter. The fourth valve V4 is connected to the permeate outlet of the filter module 60 through an eighth pipe P8. The fifth valve V5 is connected to the feed inlet 24 through the sixth pipe P6. The sixth valve V6 is connected to the non-permeate outlet of the filter module 60 through the seventh pipe P7. The seventh valve V7 is connected to the discharge outlet 23 through the fifth pipe P5.

[0044] The buffer tank 20 includes a tank body 21 and a cover 22, which are sealed together. The tank body 21 is provided with a discharge port 23 and a feed port, and the tank body 21 stores beer liquid. The cover 22 is connected to a carbon dioxide pipe P11, which is used to introduce external carbon dioxide into the buffer tank.

[0045] The buffer tank is equipped with a safety valve SV, a vacuum valve VV, a first pressure transmitter PT1 for monitoring the gas pressure inside the buffer tank, and a level transmitter LT for detecting the beer level. When the gas pressure inside the buffer tank is too high, the safety valve SV is opened to release gas; when the gas pressure inside the buffer tank is too low, the vacuum valve VV is opened to draw in gas.

[0046] A pumping pipe P15 is connected between the discharge port 23 and the input end of the high-pressure pump set 30. A deoxygenated water pipe P12 is installed on the pumping pipe P15. The deoxygenated water pipe P12 is used to introduce external deoxygenated water into the pumping pipe P15.

[0047] It should be noted that the input end of the high-pressure pump set is specifically the end connected to the discharge port 23, and the output end of the high-pressure pump set is specifically the end connected to the circulating pump 40.

[0048] The cooler 50 is also provided with a refrigerant inlet 51 and a refrigerant outlet 52. External refrigerant can enter the cooler 50 through the refrigerant inlet 51 and then be discharged through the refrigerant outlet 52 via the fourteenth pipe P14.

[0049] The fourteenth valve V14 and the thirteenth valve V13 are sequentially installed on the seventh pipeline P7 between the discharge port 23 and the high-pressure pump group 30. The tenth valve V10 is installed on the eighth pipeline P8 between the high-pressure pump group 30 and the circulating pump 40. The eighth valve V8 is installed on the deoxygenated water pipe P12.

[0050] When the third valve V3 is connected to the seventh valve V7, and both the third valve V3 and the seventh valve V7 are open, the beer liquid can flow in from the beer inlet pipe P3, pass through the third valve V3 and the seventh valve V7 in sequence, and then enter the buffer tank 20 through the outlet 23, thereby realizing the feeding process of the beer liquid.

[0051] When the first valve V1 is connected to the fourth valve V4, the fifth valve V5 is connected to the sixth valve V6, and the first valve V1, the fourth valve V4, the fifth valve V5, the sixth valve V6, the tenth valve V10, the thirteenth valve V13, and the fourteenth valve V14 are all open, the beer liquid in the buffer tank 20 can flow into the filter module 60 from the outlet 23. The permeate separated by the filter module 60 can flow out from the permeate pipe P1 after passing through the fourth valve V4 and the first valve V1 in sequence. A portion of the concentrate separated by the filter module 60 can return to the buffer tank 20 from the inlet 24 after passing through the sixth valve V6 and the fifth valve V5 in sequence. A portion of the concentrate can return to the circulation pump 40, thereby realizing the beer liquid concentration process.

[0052] When the first valve V1 is connected to the fourth valve V4, the fifth valve V5 is connected to the sixth valve V6, and the first valve V1, the fourth valve V4, the fifth valve V5, the sixth valve V6, the eighth valve V8, the tenth valve V10, the thirteenth valve V13, and the fourteenth valve V14 are all open, the beer liquid in the buffer tank 20 can flow into the filter module 60 from the outlet 23, the deoxygenated water can enter the pumping pipe P15, and then enter the filter module 60 after passing through the high-pressure pump group 30, the circulation pump 40, and the cooler 50 in sequence. The permeate separated by the filter module 60 can flow out from the permeate pipe P1 after passing through the fourth valve V4 and the first valve V1 in sequence. A portion of the concentrate separated by the filter module 60 can return to the buffer tank 20 from the inlet 24 after passing through the sixth valve V6 and the fifth valve V5 in sequence. A portion of the concentrate can return to the circulation pump 40, thereby realizing the washing and filtration process of the beer liquid.

[0053] When the eighth valve V8, the thirteenth valve V13, and the fourteenth valve V14 are all open, the deoxygenated water can enter the pumping pipeline P15, and then pass through the thirteenth valve V13 and the fourteenth valve V14 in sequence to enter the buffer tank 20 through the discharge port 23, thereby realizing the beer liquid blending process.

[0054] Beer liquid can flow into buffer tank 20 from beer inlet pipe P3. After the beer liquid feeding is completed, beer liquid can flow out from outlet 23, and enter filter module 60 after passing through high pressure pump group 30, circulation pump 40 and cooler 50 in sequence. Filter module 60 is used to separate beer liquid into permeate and concentrate. Permeate can flow out from eighth pipe P8. Part of the concentrate can return to buffer tank 20 from inlet 24 through seventh pipe P7 and sixth pipe P6. Another part of the concentrate can return to circulation pump 40 through ninth pipe P9.

[0055] It should be noted that the permeate and concentrate flow out from the permeate outlet and concentrate outlet of the filter module 60, respectively.

[0056] In some embodiments, the filter module 60 is mainly composed of a first filter de-alcoholizing cylinder 61 and a second filter de-alcoholizing cylinder 62 connected in parallel, but it is not limited to this. The filter module 60 may be composed of a first filter de-alcoholizing cylinder 61 and a second filter de-alcoholizing cylinder 62 connected in series, or the filter module 60 may be composed of two or more filter de-alcoholizing cylinders connected in series and / or in parallel.

[0057] Both the first filtration de-alcoholizing cylinder 61 and the second filtration de-alcoholizing cylinder 62 are equipped with reverse osmosis membranes for filtering beer liquid. The reverse osmosis membrane is a spiral-wound polyamide composite membrane, but it is not limited to this; other highly selective reverse osmosis membranes can also be used.

[0058] In some embodiments, the high-pressure pump group 30 is mainly composed of a first high-pressure pump 31 and a second high-pressure pump 32 connected in series, but it is not limited to this, and the high-pressure pump group 30 may also be composed of two or more high-pressure pumps connected in series.

[0059] The pressure value of the high-pressure pump set 30 can be set to 45 bar, 50 bar, or 55 bar, but is not limited to these. With the same pressure setting, the cost of two high-pressure pumps is lower than that of a single high-pressure pump; therefore, a dual high-pressure pump set can reduce energy consumption and save costs.

[0060] In some embodiments, the temperature value of the cooler 50 may be set to 0°C, 3°C, 6°C, or 8°C, but is not limited to these.

[0061] In some embodiments, a cleaning pipe P4 is also provided on the pipeline between the seventh valve V7 and the outlet 23. After the beer de-alcoholization is completed, the cleaning liquid enters the buffer tank 20, the cooler 50, the filter module 60 and the pipeline through the cleaning pipe P4 to clean the de-alcoholization equipment.

[0062] In some embodiments, the de-alcoholization equipment is equipped with a total of seventeen valves, three pressure transmitters, four regulating valves, three flow meters, one temperature sensor and three frequency converters.

[0063] A twelfth valve, V12, is installed on the cleaning pipeline P4. A sixteenth valve, V16, is installed on the carbon dioxide pipeline P11. A fourteenth valve, V14, and a thirteenth valve, V13, are sequentially installed on the pumping pipeline P15 between the discharge port 23 and the input end of the high-pressure pump unit 30. An eleventh valve, V11, is installed between the seventh valve, V7, and the pumping pipeline P15.

[0064] The deoxygenated water pipe P12 is equipped with a first flow meter FT1, a first regulating valve FV1, an eighth valve V8, and a ninth valve V9 in sequence from the direction of deoxygenated water flow. The first flow meter FT1 is used to set the opening degree of the first regulating valve FV1. The eighth valve V8 is located between the thirteenth valve V13 and the high-pressure pump group 30. The eighth valve V8 is used to control whether deoxygenated water enters the pumping pipeline P15: when the eighth valve V8 is open, deoxygenated water enters the pumping pipeline P15 to participate in dehydrogenation; when the eighth valve V8 is closed, deoxygenated water does not enter the pumping pipeline P15. The opening and closing state of the eighth valve V8 does not affect the conductivity of the pumping pipeline P15 between the thirteenth valve V13 and the high-pressure pump.

[0065] A tenth valve V10 is installed on the eighth pipe P8 between the high-pressure pump set 30 and the circulating pump 40. A second regulating valve FV2 is installed on the refrigerant inlet pipe P13. A temperature sensor TT and a second pressure transmitter PT2 are sequentially installed on the tenth pipe P10 between the cooler 50 and the filter module 70. The second pressure transmitter PT2 is used to set the frequency of the circulating pump 40, and the temperature sensor TT is used to set the opening degree of the second regulating valve FV2.

[0066] A seventeenth valve, V17, and a third flow meter, FT3, are sequentially installed on the eighth pipe P8 between filter module 60 and the fourth valve V4. A third pressure transmitter, PT3, a fourth regulating valve FV4, a third regulating valve FV3, and a second flow meter, FT2, are sequentially installed on the seventh pipe P7 between filter module 60 and the sixth valve V6. The third pressure transmitter PT3 is used to set the frequency of the first high-pressure pump 31 and the second high-pressure pump 32, and the second flow meter FT2 is used to set the opening degree of the fourth regulating valve FV4 and the third regulating valve FV3. A fifteenth valve, V15, is installed on the sixth pipe P6 between the fifth valve V5 and the inlet 24.

[0067] It should be noted that the dual control valve mode, which combines the fourth control valve FV4 and the third control valve FV3, is used on the reflux side of the beer circulation process, which can make the flow regulation more stable.

[0068] The first high-pressure pump 31 and the second high-pressure pump 32 in the high-pressure pump set 30 have their frequencies controlled by the first frequency converter SX1 and the second frequency converter SX2, respectively, and the circulation pump 40 has its frequency controlled by the third frequency converter SX3.

[0069] Next, this application provides a beer pre-concentration process flow, including the following steps:

[0070] Step 1, Feeding: Connect the third valve V3 and the seventh valve V7, open the third valve V3, the seventh valve V7, the eleventh valve V11 and the fourteenth valve V14, and the beer liquid enters the buffer tank 20. When the level transmitter LT shows that the set value has been reached, stop feeding;

[0071] Step 2, Concentration: Connect and open valves V1 and V4, and valves V5 and V6. Open valves V1, V4, V5, V6, V10, V13, V14, V15, and V17. Start circulating pump 40 and high-pressure pump group 30. Adjust the frequency of the first high-pressure pump 31 and the second high-pressure pump 32 according to the set value of the third pressure transmitter PT3. Adjust the frequency of circulating pump 40 according to the set value of the second pressure transmitter PT2. The third pressure transmitter PT3 and the second... The setpoints of the pressure transmitter PT2 are all within the range of 45 bar to 55 bar, such as 45 bar, 50 bar, and 55 bar. The beer liquid enters the internal circulation through the tenth valve V10. In the internal circulation, the beer first enters the cooler 50 through the circulation pump 40, and then enters the filter module 60. Under high pressure, water and ethanol permeate through the reverse osmosis membrane into the permeate side. Part of the non-permeate enters the inlet of the circulation pump 40 for internal circulation, and the other part returns to the buffer tank 20 through the fourth regulating valve FV4, the third regulating valve FV3, and the fifteenth valve V15 to form an external circulation, thus forming a combination of internal and external circulation.

[0072] During the concentration process, open the fourth regulating valve FV4 and the third regulating valve FV3, adjust the second flow meter FT2 to the set value, and simultaneously open the second regulating valve FV2 to allow refrigerant to enter the cooler 50. Adjust the temperature sensor TT to maintain the value within the range of 0℃-8℃. After running for a period of time, when the target concentration level value of the level transmitter LT reaches the set value, manually sample and test the alcohol content of the concentrate in the buffer tank 20. If it is qualified, proceed to the next step; otherwise, continue concentration until it is qualified.

[0073] Step 3, Filtration: Open valves V1, V4, V5, V6, V10, V13, V14, V15, and V17. Start the circulation pump 40 and the high-pressure pump group 30. Adjust the frequency of the first high-pressure pump 31 and the second high-pressure pump 32 according to the set value of the third pressure transmitter PT3. Adjust the frequency of the circulation pump 40 according to the set value of the second pressure transmitter PT2. The set values ​​of the third pressure transmitter PT3 and the second pressure transmitter PT2 are both within the range of 45 bar to 55 bar, such as 45 bar, 50 bar, and 55 bar. At the same time, open valve V8 to allow deoxygenated water to enter the de-alcoholization equipment for filtration.

[0074] During the filtration process, the first regulating valve FV1 is opened to control the instantaneous flow rate and total flow rate of the first flow meter FT1 to be consistent with the third flow meter FT3, so that the flow rate of the outflowing permeate is consistent with the flow rate of the inflowing deoxygenated water. After running for a period of time, when the permeate volume measured by the third flow meter FT3 reaches the set value, the alcohol content of the concentrate in the buffer tank 20 is tested by manual sampling. If it is qualified, the next step is carried out. If it is not qualified, the filtration continues until it is qualified.

[0075] Step 4, Preparation: Open valves V8, V13, and V14, and open regulating valve FV1 to add a certain amount of deoxygenated water. When the first flow meter FT1 reaches the set value for the deoxygenated water used in preparation, stop adding deoxygenated water. Manually sample and test the alcohol content of the washing filtrate in buffer tank 20. If it is qualified, the preparation is complete. If it is not qualified, continue to add water until the preparation is qualified.

[0076] In the entire beer pre-concentration process, concentration involves passing water and alcohol from the original beer through a reverse osmosis membrane, while beer flavor compounds remain on the concentration side, concentrating to approximately 30% of the original volume. Washing and filtration: The concentrate is discharged while deoxygenated water is added, and then pumped to the filter module 60 for reverse osmosis by a high-pressure pump unit 30. Similarly, water and alcohol pass through the reverse osmosis membrane, while the remaining beer flavor compounds remain on the concentration side. This washing and filtration process, where deoxygenated water is added while the output of the permeate is adjusted to maintain a relatively consistent concentration on the concentrate side, with only the alcohol concentration gradually decreasing. Blending: The concentrate from the washing and filtration process is blended with deoxygenated water or a small amount of normal, un-de-alcoholized sake or fermentation liquid to achieve the desired final alcohol content.

[0077] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A beer reverse osmosis membrane de-alcoholization device, characterized in that, include: A buffer tank, equipped with an outlet and an inlet, is used to store beer liquid; A circulation pump is used to circulate beer liquid. A high-pressure pump set is used to pump the beer liquid in the buffer tank to the circulation pump; Cooler, used for cooling; The filter module is used for de-alcoholizing and filtering beer liquid; Beer liquid can flow out from the outlet, pass through the high-pressure pump group, the circulation pump and the cooler in sequence, and then enter the filter module. The filter module is used to separate the beer liquid into permeate and concentrate. The permeate can flow out from the pipeline, a part of the concentrate can return to the buffer tank from the inlet, and another part of the concentrate can return to the circulation pump through the pipeline.

2. The beer reverse osmosis membrane de-alcoholization equipment as described in claim 1, characterized in that, The buffer tank includes a tank body and a lid, which are sealed together. The outlet and the inlet are both located on the tank body, and the tank body stores beer liquid. A carbon dioxide pipe is connected to the lid, which is used to introduce external carbon dioxide into the buffer tank.

3. The beer reverse osmosis membrane de-alcoholization equipment as described in claim 1, characterized in that, A pumping pipe is connected between the discharge port and the input end of the high-pressure pump set. A deoxygenated water pipe is installed on the pumping pipe, which is used to introduce external deoxygenated water into the pumping pipe.

4. The beer reverse osmosis membrane de-alcoholization equipment as described in claim 1, characterized in that, The cooler is also provided with a refrigerant inlet and a refrigerant outlet. External refrigerant can enter the cooler through the refrigerant inlet and then be discharged through the refrigerant outlet.

5. A beer reverse osmosis membrane de-alcoholization device as described in claim 3, characterized in that, The de-alcoholizing equipment also includes a connecting plate, which is equipped with a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve, and a seventh valve. The first valve can be connected to the fourth valve, the sixth valve can be connected to either the second or fifth valve, and the third valve can be connected to the seventh valve. The first valve is connected to a permeate pipe for outflowing permeate, the second valve is connected to a concentrate pipe for outflowing concentrate, and the third valve is connected to a beer inlet pipe for beer to enter. The fourth valve is connected to the permeate outlet of the filter module through a pipe, the fifth valve is connected to the feed inlet through a pipe, the sixth valve is connected to the concentrate outlet of the filter module through a pipe, and the seventh valve is connected to the discharge outlet through a pipe. The pipeline between the discharge port and the high-pressure pump set is equipped with the fourteenth valve and the thirteenth valve in sequence, the pipeline between the high-pressure pump set and the circulating pump is equipped with the tenth valve, and the deoxygenated water pipe is equipped with the eighth valve.

6. The beer reverse osmosis membrane de-alcoholization equipment as described in claim 1, characterized in that, The filtration module includes several filtration and de-alcoholization cylinders connected in series and / or in parallel, and a reverse osmosis membrane is installed inside the filtration and de-alcoholization cylinder.

7. The beer reverse osmosis membrane de-alcoholization equipment as described in claim 1, characterized in that, The high-pressure pump set mainly consists of multiple high-pressure pumps connected in series, and the pressure range of the high-pressure pump set is 45 bar to 55 bar.

8. A beer reverse osmosis membrane de-alcoholization device as described in claim 5, characterized in that, When the third valve is connected to the seventh valve and both valves are open, the beer can flow in from the beer inlet pipe, pass through the third valve and the seventh valve in sequence, and then enter the buffer tank through the outlet, thus realizing the beer feeding process.

9. A beer reverse osmosis membrane de-alcoholization device as described in claim 5, characterized in that, When the first valve is connected to the fourth valve, the fifth valve is connected to the sixth valve, and all fourteenth valves (first, fourth, fifth, sixth, tenth, thirteenth, and fourteenth) are open, the beer in the buffer tank can flow into the filter module from the outlet. The permeate separated by the filter module can flow out from the permeate pipe after passing through the fourth valve and the first valve in sequence. A portion of the concentrate separated by the filter module can return to the buffer tank from the inlet after passing through the sixth valve and the fifth valve in sequence, and a portion of the concentrate can return to the circulation pump, thereby realizing the beer concentration process.

10. A beer reverse osmosis membrane de-alcoholization device as described in claim 5, characterized in that, When the first valve is connected to the fourth valve, and the fifth valve is connected to the sixth valve, and all fourteenth valves (first, fourth, fifth, sixth, eighth, tenth, thirteenth, and fourteenth) are open, the beer liquid in the buffer tank can flow into the filter module from the outlet. The deoxygenated water can enter the pumping pipeline, and then pass through the high-pressure pump set, the circulation pump, and the cooler in sequence before entering the filter module. The permeate separated by the filter module can flow out from the permeate pipe after passing through the fourth valve and the first valve in sequence. A portion of the concentrate separated by the filter module can return to the buffer tank from the inlet after passing through the sixth valve and the fifth valve in sequence, and a portion of the concentrate can return to the circulation pump, thereby realizing the beer liquid washing and filtration process.

11. A beer reverse osmosis membrane de-alcoholization device as described in claim 5, characterized in that, When the eighth, thirteenth, and fourteenth valves are all open, the deoxygenated water can enter the pumping pipeline, and then pass through the thirteenth and fourteenth valves in sequence to enter the buffer tank through the discharge port, thereby realizing the beer liquid blending process.

12. A beer reverse osmosis membrane de-alcoholization device as described in claim 6, characterized in that, The reverse osmosis membrane is a polyamide composite film.

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