Integrated distillation apparatus

Abstract

This utility model discloses an integrated distillation equipment, belonging to the field of brewing equipment. It includes: a main body, a top cover, and a cooling device connected to the top cover. The main body has a hollow structure, with a spiral agitator located in the center. Steam inlet pipes are arranged around the inner wall of the main body. A closable discharge port and a closable water outlet are located at the bottom of the main body. A cooling fan is installed on the top surface of the main body. The spiral agitator is connected to an agitator motor located on the outer surface of the main body via a rotating shaft. The steam inlet pipe passes through the main body and is controllably connected to an external steam inlet channel. A pressure relief valve is installed on the top cover. Using this integrated distillation equipment, the entire distillation process can be completed in a single unit.

Description

Technical Field

[0001] This utility model belongs to the technical field of distilled spirits brewing equipment, specifically relating to an integrated distilled spirits equipment. Background Technology

[0002] The production of distilled spirits is a complex process that demands extremely high precision and efficiency. However, traditional methods have significant limitations in several stages:

[0003] Washing grains: In traditional methods, workers wash grains manually, which is slow and makes it difficult to guarantee cleanliness. Hot water is inconvenient for washing, while cold water is not effective.

[0004] Soaking the grain: After washing, the grain needs to be transferred to a heated tank and soaked in hot water. If the temperature is not controlled steadily during this process, the soaking time will be prolonged, affecting the quality of the grain and the subsequent fermentation effect.

[0005] Steaming the grain: After soaking, the grain is transferred to a steaming pot for steaming. However, if this step lacks precise temperature and time control, it will affect the degree of ripening of the grain, and thus affect the fermentation effect.

[0006] Cooling the grain: After steaming or boiling, the grain needs to be cooled in preparation for mixing with koji. In the traditional method, workers would place the grain on the ground and physically kick it to cool it down, but this method was inefficient and unhygienic.

[0007] Mixing with yeast: After the grain has cooled down, yeast is sprinkled on it and then mixed again by physical kicking. This method is not only labor-intensive, but also makes it difficult to ensure the uniformity of the yeast mixture.

[0008] Fermentation: The grains mixed with koji are placed in fermentation tanks for fermentation. This process depends on natural temperature and environmental conditions, lacks precise control, and lacks stability.

[0009] Distillation: The fermented grains are transferred to a still and heated. The steam is cooled by passing it through a cold water tank and then turned into alcohol. This process requires a lot of manual labor, increasing production costs and time.

[0010] In view of the above problems, there is an urgent need for a new type of distilled spirits production equipment and method that can improve production efficiency, ensure product quality, reduce labor intensity and production costs, and overcome environmental dependence. Summary of the Invention

[0011] The present invention aims to solve the aforementioned technical problem by providing an integrated distillation equipment. Using this integrated distillation equipment, the entire brewing process of distilled spirits can be completed in one device.

[0012] To solve the above problems, this utility model achieves the following technical solution:

[0013] This utility model provides an integrated distillation equipment for spirits.

[0014] It includes: the main body of the equipment and the top cover;

[0015] The main body of the equipment is a hollow structure, with a spiral agitator located in the center of the hollow structure; a steam inlet pipe is located around the inner wall of the main body of the equipment; and an openable and closable discharge port and a water outlet are located at the bottom of the main body of the equipment.

[0016] The spiral agitator is connected to an agitator motor located on the outer surface of the main body of the equipment via a rotating shaft;

[0017] The steam inlet pipe includes: a steam input inlet pipe with an opening for transporting steam into the main body of the equipment, and a steam circulation inlet pipe without an opening for steam to circulate only within the steam inlet pipe but not into the main body of the equipment; both the steam input inlet pipe with an opening and the steam circulation inlet pipe without an opening are controllably connected to the steam inlet channel outside the main body of the equipment.

[0018] A cooling fan is provided on the top plane of the main body of the device, preferably at least two cooling fans;

[0019] The upper cover is provided with an openable and closable steam outlet; when the steam outlet is open, it can be connected to the wine extraction and cooling device to realize the distillation and wine extraction operation.

[0020] The top cover is equipped with a pressure relief valve, which helps in the judgment and control of temperature and pressure;

[0021] The integrated distillation equipment of this utility model also includes a mesh cover that can be replaced as needed, which replaces the top cover to complete the addition of the yeast during grain mixing.

[0022] All parts of the equipment that come into contact with grain are made of food-grade 304 stainless steel and food-grade silicone.

[0023] The integrated distillation equipment of this utility model is further optimized as follows:

[0024] The steam inlet pipes, which are arranged around the inner wall of the main body of the equipment, are set in the pre-set grooves on the inner wall of the main body of the equipment, which can make the structure of the entire equipment more compact and stable.

[0025] The integrated distillation equipment of this utility model is further optimized as follows:

[0026] The steam circulation inlet pipe without openings is a closed loop inside the main body of the equipment, and is provided with a connecting pipe that can be controlled to connect with the steam inlet channel outside the main body of the equipment, so as to achieve the drying function by using the heat on the surface of the circulation inlet pipe.

[0027] The steam inlet pipe with openings is equipped with an exhaust mesh facing the inside of the equipment body, which helps the incoming steam to be evenly distributed throughout the entire equipment body.

[0028] The integrated distillation equipment of this utility model is further optimized as follows:

[0029] A liftable support frame for supporting the wine cooler is fixedly installed on the top plane of the main body of the equipment.

[0030] Preferably, support frames are installed at the left and right ends of the main body of the equipment to ensure that the wine cooler can be raised and lowered as needed and can be connected and disconnected from the steam outlet on the top cover.

[0031] The integrated distillation equipment of this utility model is further optimized as follows:

[0032] The top cover is equipped with a handle for easy opening and closing.

[0033] The integrated distillation equipment of this utility model is further optimized as follows:

[0034] The outer shell of the main body of the device is provided with a heat insulation layer, which is mainly composed of heat insulation cotton, so as to better achieve the heat insulation effect and achieve stable temperature control.

[0035] The integrated distillation equipment of this utility model is further optimized as follows:

[0036] The main body of the equipment is a horizontal cuboid structure; and / or

[0037] The main body of the device is equipped with four support legs, and wheels are provided on the support legs to facilitate the movement of the main body of the device.

[0038] The integrated distillation equipment of this utility model is further optimized as follows:

[0039] The device body has a water inlet on its side wall, which is controllably connected to a water inlet pipe outside the device body.

[0040] The integrated distillation equipment of this utility model is further optimized as follows:

[0041] The described wine extraction cooler has a structure in which the interior of the main cooling pipe is continuously equipped with perforated baffles, and the connecting pipe between different sections of the main cooling pipe is not equipped with baffles, and the diameter of the connecting pipe is smaller than the diameter of the main cooling pipe; the diameter of the steam inlet connecting part and the wine extraction port connecting parts at both ends of the main cooling pipe is smaller than the diameter of the main cooling pipe. The design principle and structure of the baffles in the main cooling pipe can be referred to in another patent application of the inventor, with the application number 202421281054.5, entitled "A Distilled Wine Extraction Cooler Without Cooling Water".

[0042] The integrated distillation equipment of this utility model is further optimized as follows:

[0043] The cooling fan, pressure relief valve, agitator motor, and detection module connected to the thermometer or thermometer and located inside the main body of the equipment, as well as the corresponding steam, water inlet / outlet, material inlet / outlet opening / closing, and time control modules, are all controlled by the existing PLC controller, which can ensure that the various mechanisms can be linked together.

[0044] These functions can be implemented through the operation control panel located at the front of the equipment body. The equipment body may also be equipped with a process flow coordination workbench.

[0045] The size of the integrated distillation equipment of this utility model can be determined according to the actual production volume.

[0046] This utility model of integrated distillation equipment can complete the entire brewing process of distilling grains, including washing, soaking, cooking, cooling, mixing with yeast, fermenting, distilling, and cooling, all in one machine.

[0047] Comparison of the integrated distillation equipment of this utility model with traditional brewing processes:

[0048] 1. Wash the grain

[0049] Traditional process: The grain is placed in a stainless steel bucket or pool with tap water and washed manually. This process is time-consuming, increases labor costs, takes up space, and causes water to spill, affecting the environment. It is also not easy to clean the grain properly.

[0050] This technical solution involves placing the grain into the equipment, adding tap water, or heating the tap water to warm water using the equipment, setting the grain washing time, and turning on the spiral agitator to stir the grain. This method cleans the grain quickly and efficiently.

[0051] 2. Soaking the grains

[0052] Traditional process: Place the washed grains into a steamer, add tap water, set the required temperature and time for soaking the grains, turn on the steam switch to input steam, and the grains are ready when the soaking time is up.

[0053] This technical solution involves adding tap water to the already cleaned grains in the equipment, setting the required temperature and time for soaking the grains, turning on the steam switch to input steam, and starting the spiral stirrer to slowly agitate the grains, allowing for more even temperature distribution during soaking. This shortens the soaking time and results in better-quality soaked grains.

[0054] 3. Steaming and cooking grains

[0055] Traditional process: Place the soaked grains into a steamer, set the required steaming time and temperature, turn on the steam switch to input steam, and check that the grains are cooked to perfection after the steaming time is up.

[0056] This technical solution involves steaming the grains that have already been soaked in the equipment. First, set the required steaming time and temperature, turn on the steam switch to input steam, and turn on the spiral stirrer to slowly stir the grains, allowing the temperature to be evenly mixed with the grains. This will shorten the steaming time and result in better steamed grains.

[0057] 4. Cooling the grain

[0058] Traditional process: Freshly steamed grains are removed and spread out on the ground to cool as quickly as possible to a certain temperature. In most distilleries, this is done manually by walking barefoot along the ground to spread the grains out to cool. The grains are ready when they reach the required temperature.

[0059] This technical solution involves opening the cover on the equipment to cool the grain that has just been cooked in the equipment, turning on the fans at both ends of the equipment, and simultaneously turning on the spiral stirrer to agitate the grain. The grain will cool down quickly.

[0060] 5. Grain mixed with yeast

[0061] Traditional process: The grains that have just been spread out to cool on the ground are sprinkled with the appropriate amount of yeast by hand. Then, the grains and yeast are turned over by hand with an iron shovel and mixed according to the ratio until they are evenly mixed by hand.

[0062] This technical solution involves mixing the grains, which have been cooled to the required temperature in this equipment, with the required yeast. First, set the time for the spiral mixer. Then, evenly pour the required yeast through the mesh holes on the mesh cover and cover the grains. Start the spiral mixer to stir the grains until the set stirring time is up.

[0063] 6. Grain fermentation

[0064] Traditional process: The grain that has been mixed with yeast is put into a fermentation tank for fermentation, but the fermentation temperature is difficult to control.

[0065] This technical solution involves setting the fermentation temperature of the grain that has already been mixed with yeast on this equipment, and then waiting for the fermentation time to elapse.

[0066] 7. Distillation to obtain alcohol

[0067] Traditional process: Fermented grains are placed in a distillation pot, heated with steam, and the resulting vapors are cooled in a cooling tower to become alcohol.

[0068] This technical solution involves heating fermented grains on this equipment with steam and stirring them with a spiral agitator. The steam then passes through a cooler without cooling water to become alcohol. Attached Figure Description

[0069] Figure 1 This is a schematic diagram of the overall structure of the integrated distillation equipment of this utility model.

[0070] Figure 2 This is an exploded structural diagram of the integrated distillation equipment of this utility model.

[0071] Figure label:

[0072] 1-Main body of equipment, 2-Top cover, 3-Wine cooler, 4-Spiral stirrer, 5-Steam inlet pipe, 6-Cooling fan, 7-Stirrer motor, 8-Embedding groove, 9-Top cover handle, 10-Support frame, 11-Control panel. Detailed Implementation

[0073] To make the application, technical solution, and advantages of this utility model clearer, the content of this utility model is described in detail with reference to specific embodiments. It should be understood that the embodiments are only used to illustrate this utility model and are not intended to limit the scope of protection of this utility model. Any simple improvements to this utility model based on the concept of this utility model are within the scope of protection of this utility model.

[0074] Example 1:

[0075] An integrated spirit distillation device, comprising: a main body 1 and a top cover 2;

[0076] The main body 1 of the equipment is a hollow structure, and a spiral agitator 4 is installed in the center of the hollow structure; a steam inlet pipe 5 is installed around the inner wall of the main body 1; and an openable and closable outlet and a water outlet are installed at the bottom of the main body 1.

[0077] The spiral agitator 4 is connected to the agitator motor 7, which is installed on the outer surface of the main body 1, via a rotating shaft;

[0078] The steam inlet pipe 5 includes: a steam input inlet pipe with an opening for transporting steam into the equipment body 1, and a steam circulation inlet pipe without an opening for steam to circulate only within the steam inlet pipe but not into the equipment body 1; both the steam input inlet pipe with an opening and the steam circulation inlet pipe without an opening are controllably connected to the steam inlet channel outside the equipment body 1.

[0079] A cooling fan 6 is provided on the top plane of the main body 1 of the device;

[0080] The upper cover 2 is provided with an openable and closable steam outlet; when the steam outlet is open, it can be connected to the wine extraction and cooling device 3 to realize the distillation and wine extraction operation.

[0081] The upper cover 2 is equipped with a pressure relief valve, which helps to judge and control temperature and pressure;

[0082] The integrated distillation equipment of this utility model also includes a mesh cover that can be replaced by the top cover 2 as needed, and can replace the top cover 2 to complete the addition of the yeast during grain mixing.

[0083] All parts of the main body of the equipment that come into contact with grain are made of food-grade 304 stainless steel and food-grade silicone.

[0084] The steam inlet pipe 5, which is located around the inner wall of the main body 1, is set in a pre-set groove on the inner wall of the main body 1, which can make the structure of the entire equipment more compact and stable.

[0085] The steam circulation inlet pipe without openings is a closed loop inside the main body 1 of the equipment, and is provided with a connecting pipe that can be controllably connected to the steam inlet channel outside the main body 1 of the equipment, so as to realize the drying function by using the heat on the surface of the circulation inlet pipe.

[0086] The steam inlet pipe with openings is provided with an exhaust hole mesh facing the inside of the main body 1, which is conducive to the uniform distribution of the incoming steam throughout the entire main body 1.

[0087] A support frame 10 for supporting the wine cooler 3 is fixedly installed on the top plane of the main body 1 of the device. Preferably, the support frame 10 is installed at the left and right ends of the main body 1 to ensure the stability of the wine cooler 3.

[0088] The support frame 10 is preferably a liftable support frame 10.

[0089] The upper cover 2 is provided with an upper cover handle 9 to facilitate the opening and closing of the upper cover 2.

[0090] The outer shell of the main body 1 of the device is provided with a heat insulation layer, which is mainly composed of heat insulation cotton, so as to better achieve the heat insulation effect and achieve stable temperature control.

[0091] The described equipment main body 1 is in a horizontal cuboid structure.

[0092] The wine-taking cooler 3 has a structure where partition plates with mesh holes are continuously arranged inside the main body cooling pipeline, and the connecting pipes between different sections of the main body cooling pipeline do not have partition plates, and the diameter of the connecting pipes is smaller than that of the main body cooling pipeline; the diameters of the steam inlet connecting part and the wine-taking port connecting part respectively connected to both ends of the main body cooling pipeline are smaller than that of the main body cooling pipeline. For the specific design principle and structure, reference can be made to another patent application of the inventor with the application number 202421281054.5 and the title of "A Wine-taking Cooler for Distilled Liquor without Cooling Water".

[0093] The described cooling fan 6, pressure relief valve, agitator motor 7, and the detection module arranged inside the equipment main body connected to the thermometer or temperature gauge, as well as the corresponding steam, water inlet and outlet, material inlet and outlet opening and closing, and time control modules are all controlled by an existing PLC controller, which can ensure the linkage between various mechanisms. The realization of these functions can be carried out through the operation control panel 11 set in front of the equipment main body.

[0094] The size of the integrated distilled liquor equipment of the present utility model can be determined according to the actual production volume.

[0095] The integrated distilled liquor equipment of the present utility model can complete all the brewing processes of washing grains, soaking grains, steaming grains, cooling grains, mixing grains with koji, fermenting grains, distilling grains, and cooling and taking wine in one equipment.

[0096] The steps of using the integrated distilled liquor equipment of the present utility model for white liquor brewing include:

[0097] 1. Washing grains

[0098] When washing grains, open the upper cover, put the grains required for brewing white liquor: sorghum, wheat, corn, rice, glutinous rice, barley, buckwheat, peas, etc., put the single grain or multiple grains into the equipment according to the proportion, then add an appropriate amount of clean water, and then turn on the spiral agitator switch on the equipment control panel and set fast agitation. Stir the grains through the spiral agitator. After the grains are washed clean, open the water outlet switch at the bottom of the equipment main body to drain the water for washing the grains; then turn off the spiral agitator switch and the water outlet switch. The first brewing process is completed, and the second brewing process is entered.

[0099] 2. Soaking grains

[0100] Add the cleaned grains (previously washed on this equipment) directly to an appropriate amount of water without transferring them. Cover the equipment and set the soaking time (adjust the soaking time according to the type of grain). Set the water temperature control gauge to approximately 80 degrees Celsius. Then, turn on the steam switch and simultaneously start the spiral agitator at a slow speed to continuously stir the water and grains. This ensures more even and faster soaking. This equipment features a double-layered outer shell with cotton insulation for enhanced energy efficiency. Once the soaking time is up, turn off the spiral agitator, open the water outlet switch at the bottom of the equipment to completely drain the water, and then close the outlet switch. The second brewing process is now complete; proceed to the third brewing process.

[0101] 3. Steaming and cooking grains

[0102] The grains that have just been soaked on this equipment do not need to be transferred. They can be steamed directly on this equipment. When steaming the grains, first cover the top, set the steaming time, open the steam valve to input steam, start the spiral agitator, and set the speed to slow. The spiral agitator will slowly stir the grains, making the steam steaming more even and ensuring that the grains are cooked evenly and not stick together.

[0103] This integrated distillation equipment, when considered in conjunction with the inventor's published application number 202410614403.9, entitled "Refined Dried Distillers' Grains that Can Replace Rice Husks in Baijiu Brewing and Their Application," eliminates the need to add rice husks as a loosening agent. This results in baijiu of better quality and higher yield, while significantly shortening the grain cooking time. Once the grain cooking time is complete, the third brewing process is finished, and the fourth brewing process begins.

[0104] 4. Cooling the grain

[0105] After the grain is cooked, there is no need to transfer the grain. The grain cooling process can be carried out immediately on the equipment. To cool the grain, the top cover of the equipment must be opened quickly and the cooling fans at both ends of the equipment must be turned on. At the same time, the spiral agitator continues to stir the grain to dissipate heat, so that the grain can be cooled to the required temperature quickly. This completes the fourth brewing process and enters the fifth brewing process.

[0106] 5. Grain mixed with yeast

[0107] Replace the top cover of the equipment with a mesh cover. Use the mesh cover to mix the grains, which have been cooled to the appropriate temperature, with the corresponding yeast starter. First, start the spiral mixer on a slow speed. Simultaneously, place the yeast starter into the mesh cover on top of the equipment and set the mixing time. As the spiral mixer continuously stirs the grains, the yeast starter flows onto the grains and mixes with them, ensuring the grains and yeast starter are thoroughly mixed. After mixing, replace the mesh cover back with the top cover. This completes the fifth brewing process, and you can proceed to the sixth brewing process.

[0108] 6. Grain fermentation

[0109] The mixed grains are fermented on this equipment. The fermentation time varies depending on the type of grain, aroma, and yeast used. To improve fermentation quality and control the fermentation temperature, the spiral agitator and the electric fan on the equipment can be turned on and adjusted. The sixth brewing process has now been completed. Once the fermentation time is up, the seventh brewing process will begin.

[0110] 7. Grain distillation

[0111] 8. Cool and extract the wine

[0112] The steps of grain distillation and cooling for alcohol extraction are carried out simultaneously in the baijiu brewing process.

[0113] First, ensure the top cover of the equipment is properly closed and sealed to prevent air leakage. Then, connect the steam inlet of the distillation cooler to the steam outlet of the top cover and seal it. Set the distillation temperature, place the receiving storage tank at the end of the distillation cooler, and then turn on the steam switch to input steam for grain distillation. As the steam enters the distillation cooler, it gradually cools and becomes liquor, flowing into the receiving storage tank. Finally, empty the equipment of distilled liquor. At this point, the grain distillation, cooling, and liquor extraction process for baijiu (Chinese white liquor) is complete, and the entire baijiu brewing process is now fully finished.

[0114] Finally, during the cyclic brewing process, the heat generated by the closed steam circulation inlet pipe inside the main body of the equipment can be used to dry the used lees, thus enabling the reuse of the lees.

[0115] In summary, the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any changes, modifications, and evolutions made by those skilled in the art without departing from the scope of the present utility model's technical solution based on the disclosed technical content shall be considered equivalent embodiments of the present utility model. Furthermore, any changes, modifications, and evolutions made to the above embodiments based on the essential technology of the present utility model shall still fall within the protection scope of the present utility model's technical solution.

[0116] The descriptions of positions involved in the technical solution of this utility model, such as "up," "down," "upward," and "downward," are only for clearly describing the corresponding structural connection methods and are not intended to limit the specific actual position of this technical solution. In cases where the structure, connection method, and principle are the same or similar, they shall still fall within the protection scope of the technical solution of this utility model.

[0117] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0118] Unless otherwise stated, the various optimized technical solutions in this utility model can be combined with each other.

[0119] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as are familiar to those skilled in the art. Furthermore, any methods and materials similar to or equivalent to those described herein may be applied to this invention.

Claims

1. An integrated distillation equipment, characterized in that: It includes: the main body of the equipment and the top cover; The main body of the equipment is a hollow structure, with a spiral agitator located in the center of the hollow structure; a steam inlet pipe is located around the inner wall of the main body of the equipment; and an openable and closable discharge port and a water outlet are located at the bottom of the main body of the equipment. The spiral agitator is connected to an agitator motor located on the outer surface of the main body of the equipment via a rotating shaft; The steam inlet pipe includes: a steam input inlet pipe with an opening for transporting steam into the main body of the equipment, and a steam circulation inlet pipe without an opening for steam to circulate only within the steam inlet pipe but not into the main body of the equipment; both the steam input inlet pipe with an opening and the steam circulation inlet pipe without an opening are controllably connected to the steam inlet channel outside the main body of the equipment. A cooling fan is provided on the top plane of the main body of the device; The upper cover is provided with an openable and closable steam outlet; when the steam outlet is open, it can be connected to the wine extraction and cooling device to realize the distillation and wine extraction operation. The upper cover is equipped with a pressure relief valve; It also includes a mesh cover that can be replaced as needed; The cooling fan, pressure relief valve, agitator motor, and detection module connected to the thermometer or thermometer and located inside the main body of the equipment, as well as the corresponding steam, water inlet / outlet, material inlet / outlet opening / closing, and time control modules, are all controlled by an existing PLC controller.

2. The integrated distillation equipment according to claim 1, characterized in that: The steam inlet pipe, which is located around the inner wall of the equipment body, is installed in a pre-set groove on the inner wall of the equipment body.

3. The integrated distillation equipment according to claim 1, characterized in that: The steam circulation inlet pipe without openings forms a closed loop inside the main body of the equipment, and is provided with a connecting pipe that can be controllably connected to the steam inlet channel outside the main body of the equipment. The steam inlet pipe with openings is equipped with an exhaust mesh facing the interior of the equipment body.

4. The integrated distillation equipment according to claim 1, characterized in that: A liftable support frame for supporting the wine cooler is fixedly installed on the top plane of the main body of the equipment.

5. The integrated distillation equipment according to claim 1, characterized in that: The top cover is equipped with a top cover handle.

6. The integrated distillation equipment according to claim 1, characterized in that: The outer shell of the main body of the device is provided with a heat insulation layer.

7. The integrated distillation equipment according to claim 1, characterized in that: The main body of the equipment is a horizontal cuboid structure; and / or The main body of the device is equipped with four support legs, and wheels are installed under the support legs.

8. The integrated distillation equipment according to claim 1, characterized in that: The device body has a water inlet on its side wall, which is controllably connected to a water inlet pipe outside the device body.

9. The integrated distillation equipment according to claim 1, characterized in that: The wine extraction cooler is a structure in which the interior of the main cooling pipe is continuously equipped with perforated partitions, and the connecting pipe between different sections of the main cooling pipe is not equipped with partitions, and the diameter of the connecting pipe is smaller than the diameter of the main cooling pipe; the diameter of the steam inlet connecting part and the wine extraction port connecting part connected at both ends of the main cooling pipe is smaller than the diameter of the main cooling pipe.

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