Distilled liquor dealcoholization device

Abstract

The utility model discloses a distilled liquor dealcoholization device, which comprises a heat exchange tank, a cooler and a water system for supplying cold and hot water to the heat exchange tank and the cooler, a coil pipe is arranged in the heat exchange tank, a recovery structure is arranged on the heat exchange tank, and a top pipe communicated with the cooler is arranged on one side of the recovery structure. According to the utility model, the distilled liquor is dealcoholized in a pure physical mode, and the defect that acetaldehyde and methanol cannot be effectively removed from the existing distilled liquor is overcome through stepped temperature control.

Description

Technical Field

[0001] This utility model relates to the field of distilled spirits preparation technology, specifically to a distilled spirits de-alcoholization device. Background Technology

[0002] Traditional de-alcoholization processes for distilled spirits often rely on long-term storage for natural evaporation or chemical additive treatment, which presents the following problems:

[0003] The natural aging process has a long cycle (requiring several years) and cannot meet the needs of modern production.

[0004] Chemical treatment poses a risk of residue and may introduce new harmful substances.

[0005] Low alcohol removal efficiency and the azeotropic properties of ethanol and methanol make selective separation difficult.

[0006] Furthermore, existing physical de-alcoholization technologies (such as vacuum distillation and membrane separation) have high equipment costs and damage the structure of the original wine during the separation and de-alcoholization process;

[0007] While existing common conversion methods preserve the original wine structure, the methanol produced during conversion may undergo reversible reactions under certain conditions, posing a safety hazard. Furthermore, methanol residues remain. Although the residual methanol is within the national standard range, its potential harm to the human body cannot be ruled out. From the perspective of human food safety, safety is paramount, and minimizing harm is the direction of food development. Utility Model Content

[0008] In view of the above-mentioned technical deficiencies, the purpose of this utility model is to provide a distilled spirits de-alcoholization device to solve the de-alcoholization defects of traditional distilled spirits.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a distillation alcohol removal device, including a heat exchange tank, a cooler, and a water system for supplying hot and cold water to the heat exchange tank and the cooler. The heat exchange tank is equipped with a coil, and a recovery structure is provided on the heat exchange tank. A top pipe connected to the cooler is provided on one side of the recovery structure.

[0010] Preferably, the coil comprises two layers, an inner layer and an outer layer, arranged in a longitudinal spiral.

[0011] Preferably, the recovery structure includes a windproof shroud and an induced draft fan installed on the heat exchange tank. The windproof shroud has ventilation holes, and the induced draft fan introduces the methanol and ethanol mixed vapor into the cooler through a top pipe.

[0012] Preferably, the cooler is provided with a plurality of arc-shaped condenser tubes, and a sieve plate is provided at the bottom of the condenser tubes.

[0013] Preferably, the cooler is provided with a purification structure, which includes a washing chamber and a water spray pipe.

[0014] The beneficial effects of this utility model are as follows: This utility model removes alcohol from distilled spirits through a purely physical method, and solves the defects of existing distilled spirits that cannot effectively remove acetaldehyde and methanol through stepped temperature control. The fan sends air and ethanol and methanol gas into the cooler through the top pipe, avoiding backflow that would prevent the methanol from being cleared. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0016] Figure 1 A schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of the heat exchange tank provided by this utility model.

[0018] Figure 3 A cross-sectional view of the cooler provided for this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1-Heat exchange tank; 11-Coil; 2-Cooler; 21-Condenser; 22-Sieve plate; 31-Wind shield; 32-Exhaust fan; 33-Ventilation hole; 34-Top pipe; 41-Washing chamber; 42-Water spray pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: This utility model provides a distillation alcohol removal device, including a heat exchange tank 1 with an open top, a cooler 2, and a water system for supplying hot and cold water to the heat exchange tank 1 and the cooler 2.

[0022] The water system provided in this embodiment includes a hot water system and a cold water system. The cold water system consists of a water source and a pressure tank. The hot water system uses a boiler to supply hot water, requiring a temperature-controlled hot water boiler. The water temperature in the boiler can be controlled according to the required heating limit for the alcoholic beverages to prevent excessive ethanol evaporation due to excessive temperature. The hot and cold water systems can be used interchangeably. The pressure tank stores cold water and supplies it via a water pump. The boiler uses an electric heating element, a gas burner, or a steam heat exchanger. The boiler is equipped with a temperature sensor to monitor the water temperature in real time. Since the pressure tank and boiler are existing technologies, they will not be described in detail further.

[0023] The heat exchange tank 1 is used to hold wine. A coil 11 is installed inside the heat exchange tank 1. In this embodiment, the coil 11 includes two longitudinally arranged inner and outer layers of spirally upward-facing corrosion-resistant water pipes, such as stainless steel pipes. Each inner and outer layer of the coil 11 has 11 turns. Water inside the coil 11 is drawn in by an external booster pump. The wine inside the heat exchange tank 1 is propelled by the external booster pump, flowing in a circular motion opposite to the flow of water inside the heat exchange tank 1, thus improving heat exchange efficiency.

[0024] The heat exchange tank 1 provided in this embodiment is equipped with a temperature sensor to monitor the temperature of the liquid inside the tank. When in use, the temperature threshold can be set in advance according to the different types of wine. When the temperature exceeds the set threshold, heating can be stopped.

[0025] Since a certain amount of methanol-ethanol mixture is generated during the de-alcoholization process of wine, it needs to be recovered. Because heat exchange tank 1 is open at the top, to prevent gas condensation and backflow, this invention incorporates a recovery structure above the opening of heat exchange tank 1. Specifically, the recovery structure includes a wind shield 31 and an induced draft fan 32.

[0026] The wind shield 31 has ventilation holes 33, which also facilitates observation of the situation inside the tank. One side of the blower 32 is connected to the top pipe 34, and the other end of the top pipe 34 is connected to the cooler 2. The top pipe 34 can be a conventional ventilation pipe. The size and number of ventilation holes 33 are not limited and can be determined according to actual use.

[0027] Steam is drawn into the top pipe 34 by the induced draft fan 32 to prevent backflow. In this embodiment, the induced draft fan 32 is 180W, 1000 rpm, and the air volume is preferably 10 cubic meters per minute to prevent the wine recovery from being too difficult due to the large air volume.

[0028] Air, ethanol, and methanol gases are fed into cooler 2 through top pipe 34 by blower 32 to prevent backflow and ensure that methanol is not cleared.

[0029] The cooler 2 provided in this embodiment is water-cooled. The cooler 2 draws in a high concentration of methanol and ethanol mixture at 70 degrees Celsius through the top pipe 34 and concentrates the liquid for further alcohol removal.

[0030] The cooler 2 contains multiple arc-shaped condenser tubes 21, each with a sieve plate 22 at its bottom. These tubes form a lantern-shaped structure, with two lantern-shaped structures separated by a partition, thus increasing the condensation flow. According to atmospheric physics principles, the collision and mixing of the condensed gases causes ethanol gas to liquefy and precipitate. Since the condensed gas is mostly air, it differs from the condensed gas of distilled spirits, which is primarily composed of water vapor and ethanol gas. The latter can be addressed using liquid physics principles. The condenser tubes 21 can be connected to a water system via water pipes.

[0031] The cooler 2 provided in this embodiment is provided with a purification structure, which includes a washing chamber 41 and a water spray pipe 42. The washing chamber 41 provided in this embodiment is a cylindrical structure. The water spray pipe 42 provided in this embodiment includes one longitudinal and two transverse water pipes. The transverse water pipes extend into the washing chamber 41, and the ends of the transverse water pipes can be equipped with nozzles to spray the washing chamber 41. The bottom of the longitudinal water pipes can be connected to a water tank.

[0032] This embodiment uses the following dealcoholization process to dealcoholize distilled spirits, including the following steps:

[0033] The distilled spirit is placed in a heat exchange tank for heating treatment, and the temperature of the spirit is controlled by circulating hot water through coils.

[0034] When the temperature of the wine reaches 64.7℃, low-boiling-point substances such as acetaldehyde are removed.

[0035] When the temperature rises to 72°C, the ethanol is controlled to begin evaporation and simultaneously carry away the methanol;

[0036] Maintain the temperature above 78.5℃ for 10 minutes to remove more than 60% of the methanol from the wine;

[0037] The wine was heated to 82°C and maintained at that temperature for 10 minutes to remove the remaining methanol.

[0038] During the heating process, an external booster pump is used to push the liquid into a circular flow to achieve uniform stirring.

[0039] The volatilized methanol-ethanol mixture is condensed and recovered using a water cooling system.

[0040] After de-alcoholization, the wine is subjected to adsorption filtration and pH adjustment.

[0041] During the heating process, the liquid must be stirred constantly to ensure even heating within the container; uneven heating will result in incomplete de-alcoholization. Once the preset temperature is approached, the heating rate should not be too rapid; a steady and gradual process is necessary. Higher viscosity wines require higher de-alcoholization temperatures; otherwise, de-alcoholization will be incomplete. The de-alcoholization temperature should be chosen as low as possible, as excessively high temperatures will further damage the original body of the wine. Of course, taking a 52-degree wine as an example, significant evaporation will not occur before reaching 95 degrees Celsius (the azeotropic point of this wine is 95 degrees Celsius), but considering the balance of the wine, the methanol standard can be used to determine the de-alcoholization temperature.

[0042] Considering that the structure of the wine changes after methanol removal, and the soluble proteins in the wine have a strong sour and rancid taste, it can be treated by adsorption filtration to adjust the pH, thus creating a methanol-free wine product.

[0043] Dealcoholized spirits can be categorized into dealcoholized spirits that meet national standards, low-methanol spirits, and zero-methanol spirits. These are all products of secondary processing of raw spirits. The raw spirits must be produced using solid-state fermentation methods with a fermentation period of at least 20 days. Products produced using alcohol, fast-fermentation, or liquid-state fermentation methods, due to their shorter fermentation periods, do not reach the required maturity, resulting in spirits that are highly irritating to the body, difficult to absorb, and have fewer aroma components, thus being of poor quality. De-methanoling of low-quality spirits followed by distillation significantly improves the product, although the loss is approximately 30%. The overall ethanol loss during the methanol dealcoholization process can be controlled to within 5%.

[0044] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A distillation alcohol removal apparatus, characterized in that, It includes a heat exchange tank (1), a cooler (2) and a water system for supplying hot and cold water to the heat exchange tank (1) and the cooler (2). The heat exchange tank (1) is equipped with a coil (11) and a recovery structure is provided on the heat exchange tank (1). A top pipe (34) connected to the cooler (2) is provided on one side of the recovery structure.

2. The distillation alcohol removal apparatus as described in claim 1, characterized in that, The coil (11) comprises two layers, an inner layer and an outer layer, arranged in a longitudinal spiral.

3. The distillation alcohol removal apparatus as described in claim 1, characterized in that, The recovery structure includes a windproof cover (31) and an induced draft fan (32) installed on the heat exchange tank (1). The windproof cover (31) has a vent hole (33), and the induced draft fan (32) introduces the methanol and ethanol mixed vapor into the cooler (2) through the top pipe (34).

4. The distillation alcohol removal apparatus as described in claim 1, characterized in that, The cooler (2) is provided with a plurality of arc-shaped condenser tubes (21), and a sieve plate (22) is provided at the bottom of the condenser tubes (21).

5. The distillation alcohol removal apparatus as described in claim 1, characterized in that, The cooler (2) is provided with a purification structure, which includes a washing chamber (41) and a water spray pipe (42).

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