A rice wine distillation system

Abstract

The utility model discloses a rice wine distillation system belongs to rice wine production technical field. Including distillation still, preheating kettle, a plurality of first condenser and second condenser, preheating kettle inside is equipped with heat exchanger, and the upper end gas outlet of distillation still passes through first connecting pipe and heat exchanger air inlet intercommunication installation, and the lower side a plurality of gas outlets of heat exchanger pass through second connecting pipe and corresponding first condenser intercommunication installation, preheating kettle upside gas outlet passes through third connecting pipe and second condenser intercommunication installation, preheating kettle downside passes through the discharge pipe and the upper side intercommunication installation of distillation still, first condenser and second condenser downside pass through the wine pipe intercommunication installation of storage wine tank. The device carries out preheating to rice wine mash in alcohol steam heat through heat exchanger, makes heat to be recovered and reheated again, reduces the loss of heat and the use amount of condensate, and the second condenser carries out recovery condensation to the wine gas that volatilizes and loses from rice wine mash when preheating in preheating kettle, improves the output rate of rice wine.

Description

Technical Field

[0001] This utility model belongs to the field of rice wine production technology, specifically a rice wine distillation system. Background Technology

[0002] Rice wine is a low-alcohol beverage made from rice through natural fermentation with yeast. It is both a common sweet drink and dessert, an indispensable seasoning in the kitchen, and carries a rich culinary tradition. With its mild, sweet, and mellow taste, it is a unique and comforting presence on the Chinese dining table.

[0003] The traditional Chinese rice wine brewing process mainly includes the following steps: cooking the grains, cooling the grains, re-steaming the grains, adding yeast, fermenting in barrels, distilling, and blending. The distillation process generally involves heating the fermented mash to a temperature range between the boiling points of alcohol and water to obtain the alcoholic beverage.

[0004] Whether it is the existing traditional still or the modern still, the distillation process is generally carried out by directly baking the mash or heating the mash with steam. This method is prone to loss of alcohol vapor, which affects the distillation effect and reduces the yield of alcohol. At the same time, the energy consumption is very high and the overall thermal efficiency is extremely low. Utility Model Content

[0005] To address the problems of existing rice wine distillation devices, such as loss of alcohol vapor, low alcohol yield, high energy consumption, and low thermal efficiency, this utility model provides a rice wine distillation system.

[0006] This utility model is achieved through the following technical solution: A rice wine distillation system includes a distillation vessel, a preheating vessel, and several first condensers and second condensers; The preheating kettle is equipped with a heat exchanger. The gas outlet at the upper end of the distillation kettle is connected to the gas inlet of the heat exchanger through a first connecting pipe. Several gas outlets on the lower side of the heat exchanger are connected to the corresponding first condensers through a second connecting pipe. The gas outlet on the upper side of the preheating kettle is connected to the second condenser through a third connecting pipe. The lower side of the preheating kettle is connected to the upper side of the distillation kettle via a discharge pipe; A wine storage tank is installed on the lower side of the first and second condensers via a wine outlet pipe.

[0007] A further improvement of this utility model is that an expansion box is installed between the first connecting pipe and the gas outlet of the distillation vessel.

[0008] A further improvement of this utility model is that a steam coil is connected and installed inside the distillation vessel, and the steam coil indirectly heats the material by introducing steam through a steam inlet and a condensate outlet on the side wall. A steam inlet pipe that can directly introduce steam to heat the material is connected and installed at the bottom of the distillation vessel.

[0009] A further improvement of this utility model is that the heat exchanger is a shell-and-tube heat exchanger, including an upper tube sheet installed in communication with the heat exchanger inlet and a lower tube sheet installed in communication with the heat exchanger outlet, and a plurality of heat exchange tubes in a circumferential array are installed between the upper tube sheet and the lower tube sheet.

[0010] A further improvement of this utility model is that both the distillation vessel and the preheating vessel are provided with access holes at the top.

[0011] A further improvement of this utility model is that a ladder is installed between the manhole of the preheating kettle and the heat exchanger.

[0012] As can be seen from the above technical solutions, the beneficial effects of this utility model are: At the start of distillation, the fermented rice wine mash is added to the preheating vessel through the feed pipe on the upper side. The rice wine mash in the preheating vessel enters the distillation vessel through the discharge pipe on the lower side. Steam is introduced into the steam coil through the steam inlet to indirectly heat the rice wine mash. The heated alcohol vapor enters the heat exchanger of the preheating vessel through the first connecting pipe. The heat exchanger transfers some of the heat from the alcohol vapor to the rice wine mash in the preheating vessel, preheating the rice wine mash to 70-85 degrees Celsius. Then, it enters the distillation vessel through the discharge pipe for further heating. The alcohol vapor passing through the heat exchanger enters the first condenser through the second connecting pipe for condensation, turning the alcohol vapor into alcohol that flows into the storage tank for storage. During the preheating process in the heat exchanger, the rice wine mash in the preheating vessel will generate alcohol vapor, which enters the second condenser through the third connecting pipe for liquefaction and collection, flowing into the storage tank. This device uses a heat exchanger to preheat the rice wine mash by passing the heat from the alcohol vapor, allowing the heat to be recovered and reheated, thus reducing heat loss. At the same time, it reduces the amount of condensate used. The second condenser recovers and condenses the alcohol vapor that evaporates from the rice wine mash during preheating in the preheating kettle, thereby increasing the yield of rice wine. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the distillation vessel structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the preheating kettle structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the heat exchanger structure of this utility model.

[0018] In the attached diagram: 1. Distillation vessel; 101. Steam coil; 102. Steam inlet; 103. Condensate outlet; 104. Steam inlet pipe; 2. Preheating vessel; 3. First condenser; 4. Second condenser; 5. Heat exchanger; 501. Upper tube sheet; 502. Lower tube sheet; 503. Heat exchange tube; 6. First connecting pipe; 7. Second connecting pipe; 8. Third connecting pipe; 9. Discharge pipe; 10. Wine outlet pipe; 11. Wine storage tank; 12. Expansion tank; 13. Manhole; 14. Ladder. Detailed Implementation

[0019] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0020] like Figure 1-4 As shown, a rice wine distillation system includes a distillation kettle 1, a preheating kettle 2, two first condensers 3 and a second condenser 4, all of which are fixedly connected and installed on support legs. The heat exchanger 5 is fixedly connected and installed inside the preheating kettle 2. The upper outlet of the distillation kettle 1 is connected to the inlet of the heat exchanger 5 through the first connecting pipe 6 and the quick-connect buckle. The two outlets on the lower side of the heat exchanger 5 are connected to the corresponding first condenser 3 through the second connecting pipe 7. The upper outlet of the preheating kettle 2 is connected to the second condenser 4 through the third connecting pipe 8. The preheating vessel 2 is connected to the upper side of the distillation vessel 1 via the discharge pipe 9. The bottom of the distillation vessel 1 is equipped with a discharge pipe and a valve body to facilitate the discharge of waste material after complete alcohol evaporation. A wine storage tank 11 is installed on the lower side of the first condenser 3 and the second condenser 4 through a wine outlet pipe 10.

[0021] At the start of distillation, the fermented rice wine mash is added to the preheating vessel 2 through the feed pipe on the upper side of the preheating vessel 2. The rice wine mash in the preheating vessel 2 enters the distillation vessel 1 through the discharge pipe 9 on the lower side. Steam is introduced into the steam coil 101 through the steam inlet 102 to indirectly heat the rice wine mash. The heated alcohol vapor enters the heat exchanger 5 of the preheating vessel 2 through the first connecting pipe 6. The heat exchanger 5 transfers part of the heat from the alcohol vapor to the rice wine mash in the preheating vessel 2, preheating the rice wine mash to 70-85 degrees Celsius. Then, it enters the distillation vessel 1 through the discharge pipe 9 for further heating. The alcohol vapor passing through the heat exchanger 5 enters the first condenser 3 through the second connecting pipe 7 for condensation, turning the alcohol vapor into wine which flows into the storage tank 11 for storage. During the preheating process in the heat exchanger, the rice wine mash in the preheating vessel 2 will generate alcohol vapor, which enters the second condenser 4 through the third connecting pipe 8 for liquefaction and collection, flowing into the storage tank 11. This device uses heat exchanger 5 to preheat rice wine mash by passing the heat from alcohol vapor, which allows for heat recovery and reheating, reducing heat loss and the amount of condensate used. The second condenser 4 recovers and condenses the alcohol vapor that evaporates from the rice wine mash during preheating in the preheating kettle 2, thereby increasing the yield of rice wine.

[0022] An expansion tank 12 is installed between the first connecting pipe 6 and the gas outlet of the distillation vessel 1. When the distillation vessel 1 is directly heated, the rice wine mash will generate foam due to excessive heating. The foam may block the gas pipe. The expansion tank 12 can provide a large space for buffering, allowing the foam to break and settle naturally, flowing back to the distillation vessel 1, so that the clean alcohol vapor can continue to rise and enter the condenser.

[0023] The distillation vessel 1 is internally connected to a steam coil 101. The steam coil 101 indirectly heats the material by introducing steam through a steam inlet 102 and a condensate outlet 103 on its side wall. The bottom of the distillation vessel 1 is connected to a steam inlet pipe 104 that can directly introduce steam to heat the material. In use, steam is introduced into the steam coil 101 from the steam inlet 102 to heat the rice wine mash. Condensate is discharged from the condensate outlet 103. When it is necessary to stir the rice wine mash, the steam inlet pipe 104 is opened to allow steam to be directly introduced into the distillation vessel 1. The impact force of the steam will cause the rice wine mash to turn and stir, preventing local overheating and scorching. The condensate from the steam can slightly dilute the mash and quickly heat it.

[0024] The heat exchanger 5 is a shell-and-tube heat exchanger, comprising an upper tube sheet 501 connected to the air inlet of the heat exchanger 5 and a lower tube sheet 502 connected to the air outlet of the heat exchanger 5. A plurality of circumferentially arrayed heat exchange tubes 503 are connected and installed between the upper tube sheet 501 and the lower tube sheet 502. In use, alcohol vapor enters the upper tube sheet 501 from the air inlet, and is distributed to each heat exchange tube 503 for heat dissipation. Then, the alcohol vapor or rice wine liquid after heat exchange is transferred through the lower tube sheet 502 to the second connecting pipe 7, and then to the condenser for cooling and liquefaction. This ensures that all alcohol vapor can be collected. The shell-and-tube heat exchanger is robust and durable, has a large processing capacity, high heat exchange efficiency, and is easy to clean and maintain.

[0025] Both the distillation vessel 1 and the preheating vessel 2 are equipped with manholes 13 on their tops. These manholes 13 allow adults easy access to the distillation vessel 1 or preheating vessel 2 for cleaning and maintenance, facilitating installation and replacement. They are an indispensable component for ensuring the long-term, safe, and stable operation of the equipment. A ladder 14 is installed between the manhole 13 of the preheating vessel 2 and the heat exchanger 5. Since the heat exchanger 5 often accumulates rice wine mash and scale, the ladder 14 allows maintenance personnel to easily enter the heat exchanger 5 through the manhole 13 for cleaning. The heat exchanger 5 can be rinsed with a high-pressure water gun to ensure heat exchange efficiency and reduce energy consumption.

[0026] In use, the fermented rice wine mash is added to the preheating vessel 2 through the feed pipe on the upper side of the preheating vessel 2. Steam is introduced into the steam coil 101 through the steam inlet 102 to indirectly heat the rice wine mash. The heated alcohol vapor enters the heat exchanger 5 of the preheating vessel 2 through the first connecting pipe 6. The heat exchanger 5 transfers part of the heat from the alcohol vapor to the rice wine mash in the preheating vessel 2, preheating the rice wine mash to 70-85 degrees Celsius. Then, it enters the distillation vessel 1 through the discharge pipe 9 for further heating. The alcohol vapor passing through the heat exchanger 5 enters the first condenser 3 through the second connecting pipe 7 for condensation, turning the alcohol vapor into wine which flows into the wine storage tank 11 for storage. During the preheating process in the heat exchanger, the rice wine mash in the preheating vessel 2 will generate alcohol vapor, which enters the second condenser 4 through the third connecting pipe 8 for liquefaction and collection, flowing into the wine storage tank 11. This device uses heat exchanger 5 to preheat rice wine mash by passing the heat from alcohol vapor, which allows for heat recovery and reheating, reducing heat loss and the amount of condensate used. The second condenser 4 recovers and condenses the alcohol vapor that evaporates from the rice wine mash during preheating in the preheating kettle 2, thereby increasing the yield of rice wine.

[0027] It should be noted that both the distillation vessel 1 and the preheating vessel 2 are equipped with vent pipes on their upper sides. The vent pipes can exhaust gas and low-boiling-point gases and air during the initial heating stage. They are closed after the steam production stabilizes to prevent excessive pressure, balance the pressure inside and outside the vessel, and protect the normal operation of the equipment.

[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rice wine distillation system, characterized in that, It includes a distillation vessel (1), a preheating vessel (2), several first condensers (3) and second condensers (4); The preheating kettle (2) is equipped with a heat exchanger (5). The upper outlet of the distillation kettle (1) is connected to the inlet of the heat exchanger (5) through a first connecting pipe (6). Several outlets on the lower side of the heat exchanger (5) are connected to the corresponding first condenser (3) through a second connecting pipe (7). The upper outlet of the preheating kettle (2) is connected to the second condenser (4) through a third connecting pipe (8). The preheating vessel (2) is connected to the upper side of the distillation vessel (1) via a discharge pipe (9) at its lower side; The first condenser (3) and the second condenser (4) are connected to a wine storage tank (11) via a wine outlet pipe (10) on their lower sides.

2. The rice wine distillation system according to claim 1, characterized in that, An expansion tank (12) is installed between the first connecting pipe (6) and the gas outlet of the distillation vessel (1).

3. The rice wine distillation system according to claim 2, characterized in that, The distillation vessel (1) is internally connected to a steam coil (101). The steam coil (101) is connected to a steam inlet (102) and a condensate outlet (103) on the side wall to indirectly heat the material. The bottom of the distillation vessel (1) is connected to a steam inlet pipe (104) that can directly heat the material with steam.

4. The rice wine distillation system according to claim 1, characterized in that, The heat exchanger (5) is a shell and tube heat exchanger, including an upper tube sheet (501) installed in communication with the air inlet of the heat exchanger (5) and a lower tube sheet (502) installed in communication with the air outlet of the heat exchanger (5). A plurality of circumferentially arrayed heat exchange tubes (503) are installed between the upper tube sheet (501) and the lower tube sheet (502).

5. The rice wine distillation system according to claim 1, characterized in that, Both the distillation vessel (1) and the preheating vessel (2) are provided with manholes (13) at the top.

6. The rice wine distillation system according to claim 5, characterized in that, A ladder (14) is installed between the manhole (13) of the preheating vessel (2) and the heat exchanger (5).

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