Intelligent temperature control device for Daqu fermentation of Maotai-flavor liquor

By using an intelligent temperature control device to automatically regulate the temperature and humidity during the fermentation process of Maotai-flavor liquor, the problems of harsh environmental conditions and imprecise control in traditional methods have been solved, thus achieving stability in the fermentation process and improving product quality.

CN223805060UActive Publication Date: 2026-01-16GUIZHOU JIAOGUOGONG LIQUOR CO LTD
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Patent Information

Application Number
CN202520214073.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2026-01-16
Estimated Expiration
2035-02-11

AI Technical Summary

Technical Problem

The traditional fermentation process of Maotai-flavor liquor involves harsh environmental conditions, leading to high health risks for workers, serious microbial contamination, and inaccurate temperature control, which affects the uniformity of fermentation and the stability of product quality.

Method used

It adopts an intelligent temperature control device, including a fermentation chamber, temperature sensor, humidity sensor, oxygen content detector, electric heating plate, water cooling plate, near-infrared spectrometer and controller, to achieve automatic regulation of temperature and humidity. Combined with a data processing module and display, it achieves precise control and rapid response.

Benefits of technology

It improves the uniformity and stability of Daqu fermentation, reduces worker health risks, reduces microbial contamination, ensures the continuity and efficiency of the fermentation process, and enhances the stability of product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of intelligent regulation and control of koji rooms, in particular to an intelligent temperature control device for fermentation of Maotai-flavor liquor koji, which comprises a fermentation box, a temperature sensor, a humidity sensor and an oxygen content detector, the electric heating plate is fixedly arranged at the bottom of the fermentation box; the water cooling plate is fixedly arranged at the top of the fermentation box; the near-infrared spectrometer is fixedly arranged on one side of the fermentation box and is communicated with the interior of the fermentation box through the sampling port; the controller is fixedly arranged outside the fermentation box, and the temperature sensor, the humidity sensor, the oxygen content detector, the heating power source, the water cooling system and the near-infrared spectrometer are electrically connected with the controller. According to the utility model, the environment temperature and humidity in the fermentation box can be accurately regulated and controlled, the uniformity of the temperature and humidity of each yeast block during yeast fermentation can be ensured, and the system has the advantages of stable work, short response time, high response speed and the like.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of intelligent regulation and control of curved room, and particularly relates to a fermented intelligent temperature control device for Jiang-flavor liquor Daqu. BACKGROUND

[0002] In the sophisticated brewing process of Jiang-flavor liquor, the fermentation link of Daqu plays a pivotal role, which is a key step to shape the unique flavor and quality of liquor. However, the environment of the curved room where this traditional process link is located is full of challenges and hidden dangers. The environmental conditions inside the curved room are extremely harsh, not only the temperature is continuously high, but also the humidity is maintained at a high level, combined with the significant increase of carbon dioxide concentration, which together constitute a working environment that seriously threatens the physical and mental health of workers. Long-term work in such an environment, workers are easily affected by high temperature, high humidity and harmful gases, increasing the risk of occupational health.

[0003] More complexly, the traditional curved room design often has many structural deficiencies. Its internal space layout is complex, with many dead angles, which not only brings great inconvenience to daily cleaning and maintenance, but also becomes a breeding ground for bacteria. At the same time, the sealing performance of the curved room is poor, and external microorganisms are easy to invade, while the existing disinfection and sterilization means are difficult to completely cover all corners. Once a certain area is contaminated, it may have a chain reaction, affecting the fermentation quality of subsequent multiple rounds, and in severe cases, it may even lead to the failure of the fermentation of the entire batch of Daqu, causing a significant impact on production efficiency and product quality.

[0004] In terms of temperature control, the traditional curved room relies on manual monitoring and adjustment, which is full of uncertainty and inefficiency. Workers need to enter the curved room frequently (every 2-3 hours) to measure temperature and humidity using traditional tools, which not only consumes time and effort, but also the accuracy of the measurement results highly depends on the individual's operation habits and judgment, lacking consistency and stability. The cognitive differences of different workers on temperature control lead to great volatility in the implementation of control measures, and the variation introduced by human factors greatly affects the uniformity of the Daqu fermentation process and the quality stability of the final product.

[0005] In view of the above disadvantages, the industry is in urgent need of an innovative solution to empower the production process of traditional Maotai-flavor liquor with intelligent technology. Specifically, an intelligent temperature control device needs to be developed, which should have the following core features: it can accurately control the fermentation environment, ensuring that key parameters such as temperature and humidity are stable within the optimal range; through automated and intelligent control means, it can eliminate the control differences caused by human factors, improving the uniformity and stability of Daqu fermentation; at the same time, the device also needs to have high working stability and rapid response capability to effectively respond to the rapid changes in the internal environment of the Daqu room, ensuring the continuity and efficiency of the fermentation process. In addition, the design of the intelligent temperature control device should also consider easy installation, convenient maintenance, and effective integration with traditional Daqu facilities, so as to modernize the production environment without changing the essence of the original production process, and inject new vitality into the sustainable development of Maotai-flavor liquor. Content of the utility model

[0006] The utility model provides a kind of Maotai-flavor liquor Daqu fermentation intelligent temperature control device, to solve the problem of Daqu fermentation difference caused by traditional technology relying on manual control, and can accurately control the environmental temperature and humidity in fermentation box, can guarantee the uniformity of the temperature and humidity of each Daqu block when Daqu is fermented, with the advantages of system working stability, short response time, fast response speed etc.

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: a kind of Maotai-flavor liquor Daqu fermentation intelligent temperature control device, it includes: fermentation box, the top of the fermentation box is equipped with air inlet and exhaust port, inside is equipped with temperature sensor, humidity sensor and oxygen content detector;Electric heating plate, the electric heating plate is fixedly arranged at the bottom of the fermentation box, and the electric heating plate is electrically connected with heating power supply;Water cooling plate, the water cooling plate is fixedly arranged at the top of the fermentation box, and the water cooling plate is communicated with water cooling system by water pipe;Near infrared spectrometer, the near infrared spectrometer is fixedly arranged at one side of the fermentation box, and is communicated with the inside of the fermentation box by sampling port;Controller, the controller is fixedly arranged outside the fermentation box, the temperature sensor, the humidity sensor, the oxygen content detector, the heating power supply, the water cooling system and the near infrared spectrometer are electrically connected with the controller respectively.

[0008] Preferably, the outer wall of the fermentation box is provided with a heat preservation layer, and a plurality of fermentation chambers are arranged in an array inside the fermentation box, and any adjacent fermentation chambers are communicated with each other through a channel.

[0009] Preferably, it further includes a display, and the display is electrically connected with the controller.

[0010] Preferably, it further includes a data processing module, and the data processing module is electrically connected with the controller.

[0011] Preferably, the electric heating plates are arranged in multiple and distributed on the bottom of each layer of the fermentation chamber; and the water cooling plates are arranged in multiple and distributed on the top of each layer of the fermentation chamber.

[0012] Preferably, a fan is arranged in the exhaust port and electrically connected with the controller.

[0013] The fermentation tank is used for placing Daqu, and the internal environment is regulated to meet the optimal fermentation state of Daqu, the top of the fermentation tank is provided with an exhaust port and an air inlet for adjusting the oxygen content in the fermentation chamber, an oxygen content detector is used for detecting the oxygen content in the fermentation chamber, a temperature sensor and a humidity sensor are respectively used for monitoring the temperature and humidity in the fermentation chamber in real time, a controller provides working signals for a heating power supply and a water cooling system according to the data collected by the sensors, and the temperature and humidity in the fermentation tank are automatically adjusted by electric heating plates and water cooling plates to keep them within a suitable range, a near-infrared spectrometer obtains Daqu samples through a sampling port and performs spectral detection on the samples, the detection items include starch, acidity and moisture, and the utilization of nutrients by Daqu microorganisms is observed, the controller predicts and adjusts future fermentation conditions according to the detection results, further improves the fermentation efficiency and wine stability, solves the problem of Daqu fermentation difference caused by manual regulation in the prior art, accurately regulates the environmental temperature and humidity in the fermentation tank, ensures the uniformity of the temperature and humidity of each Daqu block during Daqu fermentation, and has the advantages of stable system operation, short response time and fast response speed. The fermentation chamber is used for partitioning the inside of the fermentation tank, each fermentation chamber can place Daqu, thereby meeting the fermentation management of Daqu in different states, the heat preservation layer outside the fermentation tank stabilizes the overall temperature in the fermentation tank, and energy consumption is reduced. A display outputs the changes of parameters such as temperature and humidity during the fermentation process, and a worker accurately controls the controller according to the current fermentation state. A data processing module is realized by an industrial computer, is responsible for recording and storing various parameters such as temperature, humidity and oxygen content during the fermentation process, and predicts and adjusts future fermentation conditions according to historical data and an experience model, thereby further improving the fermentation efficiency and wine stability. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0016] In the figure: 1, fermentation tank; 2, air inlet; 3, exhaust port; 4, temperature sensor; 5, humidity sensor; 6, oxygen content detector; 7, electric heating plate; 8, heating power supply; 9, water cooling plate; 10, water cooling system; 11, near infrared spectrometer; 12, controller; 13, insulation layer; 14, display; 15, data processing module; 16, fan. DETAILED DESCRIPTION

[0017] The technical scheme of the present application will be described clearly and completely below in combination with the drawings of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] According to Figure 1 As shown in the figure, a kind of intelligent temperature control device for Daqu fermentation of Maotai-flavor liquor includes: fermentation tank 1, the top of the fermentation tank 1 is provided with air inlet 2 and exhaust port 3, and inside is provided with temperature sensor 4, humidity sensor 5 and oxygen content detector 6;Electric heating plate 7, the electric heating plate 7 is fixedly arranged at the bottom of the fermentation tank 1, and the electric heating plate 7 is electrically connected with heating power supply 8;Water cooling plate 9, the water cooling plate 9 is fixedly arranged at the top of the fermentation tank 1, and the water cooling plate 9 is communicated with water cooling system 10 through water pipe;Near infrared spectrometer 11, the near infrared spectrometer 11 is fixedly arranged at one side of the fermentation tank 1, and is communicated with the inside of the fermentation tank 1 through sampling port;Controller 12, the controller 12 is fixedly arranged outside the fermentation tank 1, and the temperature sensor 4, the humidity sensor 5, the oxygen content detector 6, the heating power supply 8, the water cooling system 10 and the near infrared spectrometer 11 are electrically connected with the controller 12 respectively.

[0019] In the above arrangement, the fermentation tank 1 is used to place Daqu, and the internal environment is regulated to meet the optimal fermentation state of Daqu. The top of the fermentation tank 1 is provided with an exhaust port 3 and an air inlet 2 for adjusting the oxygen content in the fermentation chamber. The oxygen content detector 6 is used to detect the oxygen content in the fermentation chamber. The temperature sensor 4 and the humidity sensor 5 are used to monitor the temperature and humidity in the fermentation chamber in real time. The controller 12 provides working signals for the heating power supply 8 and the water cooling system 10 according to the data collected by the sensors, and automatically adjusts the temperature and humidity in the fermentation tank 1 through the electric heating plate 7 and the water cooling plate 9 respectively, so as to keep them within the appropriate range. The near-infrared spectrometer 11 obtains Daqu samples through the sampling port and performs spectral detection. The detection items include starch, acidity, and moisture. The utilization of nutrients by Daqu microorganisms is observed. The controller 12 predicts and adjusts future fermentation conditions according to the detection results, further improves fermentation efficiency and liquor stability, solves the problem of Daqu fermentation difference caused by manual regulation in traditional technology, and accurately regulates the environmental temperature and humidity in the fermentation tank 1. The uniformity of the temperature and humidity of each Daqu block during fermentation can be guaranteed. The system has the advantages of stable operation, short response time, and fast response speed.

[0020] The outer wall of the fermentation tank 1 is provided with a heat preservation layer 13, and the inside of the fermentation tank 1 is arranged in an array with a plurality of fermentation chambers. Any adjacent fermentation chambers are connected to each other through channels.

[0021] Through this arrangement, the inside of the fermentation tank 1 is partitioned, and each fermentation chamber can place Daqu, so as to meet the fermentation management of Daqu in different states. The heat preservation layer 13 outside the fermentation tank 1 stabilizes the overall temperature in the fermentation tank 1 and reduces energy consumption.

[0022] It also includes a display 14 electrically connected to the controller 12. It also includes a data processing module 15 electrically connected to the controller 12.

[0023] In this arrangement, the display 14 outputs the changes of temperature, humidity and other parameters during the fermentation process. The workers accurately control the controller 12 according to the current fermentation state. The data processing module 15 is realized by an industrial computer, which is responsible for recording and storing various parameters such as temperature, humidity, and oxygen content during the fermentation process. According to historical data and experience model, the future fermentation conditions are predicted and adjusted to further improve fermentation efficiency and liquor stability.

[0024] The electric heating plate 7 is provided in multiple and distributed at the bottom of each layer of the fermentation chamber. The water cooling plate 9 is provided in multiple and distributed at the top of each layer of the fermentation chamber.

[0025] In the setting, the electric heating plate 7 corresponding to the bottom of the fermentation chamber and the water cooling plate 9 corresponding to the top optimize the temperature regulation effect in the fermentation chamber, so that the temperature of each point in each fermentation chamber is more uniform.

[0026] The air outlet 3 is provided with a fan 16, the fan 16 is electrically connected with the controller 12, and the air exchange work in the fermentation box 1 is completed according to the instruction of the controller 12. As a preferred scheme, a three-way pipe connected between the air inlet 2 and the air outlet 3 is further included, a valve is arranged in the middle interface of the three-way pipe, the valve is electrically connected with the controller 12, when the valve is opened, a small amount of air exchange function of the fermentation box 1 can be met under the action of the fan 16, and when the valve is closed, the air in the fermentation box 1 can realize internal circulation under the action of the fan 16.

[0027] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A fermented Daqu for Maotai-flavor liquor with intelligent temperature control device, characterized in that, Include: The fermentation tank (1) is provided with air inlet (2) and exhaust port (3) on top, inside temperature sensor (4), humidity sensor (5) and oxygen content detector (6); Electric heating plate (7), the electric heating plate (7) is fixedly arranged at the bottom of the fermentation tank (1), and the electric heating plate (7) is electrically connected with the heating power supply (8); Water cooling plate (9), the water cooling plate (9) is fixedly arranged at the top of the fermentation tank (1), and the water cooling plate (9) is communicated with the water cooling system (10) through the water pipe; Near infrared spectrometer (11), the near infrared spectrometer (11) is fixedly arranged on one side of the fermentation tank (1), and is communicated with the inside of the fermentation tank (1) through the sampling port; Controller (12), the controller (12) is fixedly arranged outside the fermentation tank (1), the temperature sensor (4), the humidity sensor (5), the oxygen content detector (6), the heating power supply (8), the water cooling system (10) and the near infrared spectrometer (11) are electrically connected with the controller (12) respectively.

2. The sauce-flavor type Baijiu Daqu fermentation intelligent temperature control device according to claim 1, characterized in that: The outer wall of the fermentation tank (1) is provided with a heat preservation layer (13), and the inside of the fermentation tank (1) is arranged with a plurality of fermentation chambers in array, and any adjacent fermentation chamber is communicated with each other through the channel.

3. The sauce-flavor type Baijiu Daqu fermentation intelligent temperature control device according to claim 1, characterized in that: It also includes a display (14), which is electrically connected with the controller (12).

4. The sauce-flavor type Baijiu (Chinese liquor) Daqu fermentation intelligent temperature control device according to claim 1, characterized in that: It also includes a data processing module (15), which is electrically connected with the controller (12).

5. The sauce-flavor type Baijiu (Chinese liquor) Daqu fermentation intelligent temperature control device according to claim 2, characterized in that: The electric heating plate (7) is provided with a plurality of parts, and is distributed at the bottom of each layer of the fermentation chamber; the water cooling plate (9) is provided with a plurality of parts, and is distributed at the top of each layer of the fermentation chamber.

6. The sauce-flavor type Baijiu (Chinese liquor) Daqu fermentation intelligent temperature control device according to claim 1, characterized in that: The exhaust port (3) is provided with a fan (16), and the fan (16) is electrically connected with the controller (12).