Constant-temperature quantitative inoculation device for dregs vinegar fermentation

Abstract

The invention relates to the technical field of food processing, in particular to a constant-temperature quantitative inoculation device for dregs vinegar fermentation, which comprises a tank body, a spraying assembly is arranged in the tank body, an inoculation assembly is arranged at the top, and a temperature control pipeline is arranged on the outer side wall; the inoculation assembly comprises a sterile inoculation box, a connecting pipeline and a metering pump, and the spraying assembly is driven by an electric sliding rail; a temperature sensor is arranged in the tank body, a pressure sensor, a sterile air inlet and a one-way exhaust valve are arranged on the top of the tank body, and a side wall control panel is integrated with a wireless transmission module and linked with all parts. The device can accurately control the temperature and quantitatively inoculate, construct a sterile fermentation environment, realize uniform distribution of spraying and real-time monitoring and regulation of parameters, solve the problems of large quality fluctuation and high risk of infectious microbe pollution of a traditional device, improve the fermentation efficiency and the product percent of pass, and is suitable for large-scale production of dregs vinegar.

Description

Technical Field

[0001] This invention relates to the field of food processing technology, and more specifically, to a constant temperature quantitative inoculation device for fermentation of fermented grains. Background Technology

[0002] As a specialty fermented food, the temperature stability, inoculation accuracy, and aseptic environment during the fermentation process of fermented vinegar are crucial to product quality. Current fermentation inoculation methods for fermented vinegar largely rely on traditional manual operations or simple devices, which have several shortcomings: First, temperature control is inefficient, making it difficult to maintain the constant temperature environment required for fermentation, leading to unstable microbial activity and affecting fermentation efficiency; second, the inoculation amount is entirely based on experience, resulting in poor quantitative accuracy and easily causing imbalances in the fermentation process, leading to large fluctuations in product quality; third, inadequate aseptic protection measures allow for the introduction of contaminating bacteria during inoculation and fermentation, reducing the product qualification rate. Furthermore, traditional devices lack intelligent monitoring and control capabilities, failing to provide real-time feedback on fermentation parameters, further restricting the large-scale, standardized production of fermented vinegar. Therefore, developing an inoculation device that is temperature-controlled, quantitatively controllable, and has good aseptic properties has become a key requirement for improving the fermentation quality and production efficiency of fermented vinegar. Summary of the Invention

[0003] In view of this, the present invention addresses the shortcomings of the prior art by proposing a constant temperature quantitative inoculation device for fermentation of lees vinegar, aiming to solve at least one of the problems mentioned in the background art.

[0004] This invention provides a constant temperature quantitative inoculation device for fermentation of lees vinegar, comprising: a tank, a control panel provided on its side wall, a wireless transmission module provided inside the control panel, a temperature control pipe provided on the outer side wall of the tank for controlling the temperature inside the tank, and a discharge pipe provided at the bottom of the tank; A spray assembly is disposed on the top wall inside the tank body; An inoculation assembly is disposed at the top of the container, and the bottom of the inoculation assembly extends through the top of the container into the interior of the container.

[0005] In some embodiments, a one-way vent valve is provided on the side wall of the tank, and the one-way vent valve is in communication with the interior of the tank.

[0006] In some embodiments, a water outlet pipe is provided at one end of the top of the temperature control pipe, and a water inlet pipe is provided at one end of the bottom of the temperature control pipe.

[0007] In some embodiments, the bottom of the tank is provided with multiple support columns.

[0008] In some embodiments, a temperature sensor is provided inside the tank.

[0009] In some embodiments, a pressure sensor is provided on the top of the tank, the pressure sensor being used to detect the air pressure inside the tank.

[0010] In some embodiments, a sterile air inlet is provided on the top of the tank, the sterile air inlet is connected to the interior of the tank, and a sterile filter box is provided at the sterile air inlet.

[0011] In some embodiments, the spray assembly includes: An electric slide rail is installed on the top wall inside the tank, and the mounting end at the top of the electric slide rail is fixedly connected to the top wall inside the tank. A spray bar, the top mounting end of which is fixedly connected to the sliding end at the bottom of the electric slide rail, and multiple spray heads are spaced apart along the length of the spray bar at the bottom of the spray bar, and the spray heads are in communication with the interior of the spray bar; A water inlet head is located at the top of the tank, and the bottom of the water inlet head is connected to the spray bar via a hose; The spray bar is perpendicular to the electric slide rail.

[0012] In some embodiments, the inoculation component includes: The tank body has two symmetrically arranged support frames on its top, and the axial cross-section of the support frames is L-shaped. A sterile inoculation box is disposed between the two support frames, and the two sides of the sterile inoculation box are respectively fixedly connected to the top of the two support frames; A connecting pipe is provided, the top of which is connected to the aseptic inoculation box, and the bottom of the connecting pipe passes through the tank and extends into the interior of the tank. A metering pump is provided on the connecting pipe.

[0013] In some embodiments, the control panel is electrically connected to the one-way exhaust valve, temperature sensor, pressure sensor, electric slide rail, and metering pump, respectively.

[0014] Compared with existing technologies, the beneficial effects of this invention are as follows: the temperature control pipeline, temperature sensor, and control panel work together to accurately maintain a constant temperature environment inside the tank, ensuring stable activity of fermenting microorganisms and improving fermentation efficiency and product quality consistency; the inoculation component, combined with a metering pump, achieves precise quantitative control of the inoculation amount, avoiding human operation errors and effectively preventing fermentation imbalance problems; the aseptic inoculation box, aseptic air inlet, and one-way exhaust valve work together to create an aseptic fermentation environment, reducing the risk of contamination by miscellaneous bacteria and improving product qualification rate; the electric slide rail drives the spray component to spray back and forth, ensuring uniform distribution of inoculation liquid or water, further optimizing fermentation conditions; the control panel integrates multi-module linkage and wireless transmission functions, enabling real-time monitoring and intelligent control of fermentation parameters, facilitating the large-scale and standardized production of lees vinegar.

[0015] The above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0016] Other features and aspects of this disclosure will become clearer from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 Axonometric view of a constant temperature quantitative inoculation device for fermentation of rice dregs and vinegar provided in an embodiment of the present invention; Figure 2 This is a front structural cross-sectional view of the constant temperature quantitative inoculation device for fermentation of lees vinegar provided in an embodiment of the present invention; Figure 3 This is a partially enlarged view of the constant temperature quantitative inoculation device for fermentation of lees vinegar provided in an embodiment of the present invention.

[0019] The components include: 1. Tank body; 2. Control panel; 3. Temperature control pipe; 4. Discharge pipe; 5. One-way exhaust valve; 6. Water outlet pipe; 7. Water inlet pipe; 8. Support column; 9. Temperature sensor; 10. Pressure sensor; 11. Aseptic air inlet; 12. Aseptic filter box; 13. Electric slide rail; 14. Spray bar; 15. Spray head; 16. Water inlet head; 17. Hose; 18. Support frame; 20. Aseptic inoculation box; 21. Connecting pipe; 22. Metering pump. Detailed Implementation

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

[0021] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 this application.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] See Figure 1-3 As shown, a constant-temperature quantitative inoculation device for fermentation of rice dregs vinegar according to an embodiment of this application includes: Tank 1, with a control panel 2 on its side wall, a wireless transmission module inside the control panel 2, a temperature control pipe 3 on the outer side wall of the tank 1 for controlling the temperature inside the tank 1, and a discharge pipe 4 at the bottom of the tank 1. A spray assembly is disposed on the top wall inside the tank 1; An inoculation assembly is disposed at the top of the tank 1, and the bottom of the inoculation assembly extends through the top of the tank 1 into the interior of the tank 1.

[0025] In some specific embodiments, a one-way exhaust valve 5 is provided on the side wall of the tank body 1, and the one-way exhaust valve 5 is in communication with the interior of the tank body 1.

[0026] In some specific embodiments, a water outlet pipe 6 is provided at one end of the top of the temperature control pipe 3, and a water inlet pipe 7 is provided at one end of the bottom of the temperature control pipe 3.

[0027] In some specific embodiments, the bottom of the tank 1 is provided with multiple support columns 8.

[0028] In some specific embodiments, a temperature sensor 9 is installed inside the tank 1.

[0029] In some specific embodiments, a pressure sensor 10 is provided on the top of the tank 1, and the pressure sensor 10 is used to detect the air pressure inside the tank 1.

[0030] In some specific embodiments, a sterile air inlet 11 is also provided on the top of the tank body 1. The sterile air inlet 11 is connected to the interior of the tank body 1, and a sterile filter box 12 is provided at the sterile air inlet 11.

[0031] In some specific embodiments, the spray assembly includes: An electric slide rail 13 is disposed on the top wall inside the tank 1, and the mounting end of the top of the electric slide rail 13 is fixedly connected to the top wall inside the tank 1. The top mounting end of the spray rod 14 is fixedly connected to the sliding end of the bottom of the electric slide rail 13. Multiple spray heads 15 are spaced apart along the length of the spray rod 14 at the bottom. The spray heads 15 are in communication with the interior of the spray rod 14. The water inlet head 16 is located at the top of the tank body 1, and the bottom of the water inlet head 16 is connected to the spray bar 14 through the hose 17; The spray bar 14 is perpendicular to the electric slide rail 13.

[0032] In some specific embodiments, the inoculation component includes: Support frame 18, two support frames 18 are symmetrically arranged on the top of the tank body 1, and the axial cross section of the support frame 18 is an L-shaped structure; A sterile inoculation box 20 is disposed between the two support frames 18, and the two sides of the sterile inoculation box 20 are respectively fixedly connected to the top of the two support frames 18. A connecting pipe 21 is connected at its top to the aseptic inoculation box 20, and at its bottom it penetrates the tank body 1 and extends into the interior of the tank body 1. A metering pump 22 is installed on the connecting pipe 21.

[0033] In some specific embodiments, the control panel 2 is electrically connected to the one-way exhaust valve 5, temperature sensor 9, pressure sensor 10, electric slide rail 13, and metering pump 22, respectively.

[0034] It should be understood that operators can precisely preset core parameters through the touch interface of control panel 2, including the target temperature (28-32℃) adapted to the activity requirements of fermentation strains (such as acetic acid bacteria and lactic acid bacteria), the precise inoculation amount set according to the weight ratio of raw materials (with an error controlled within ±1%), the spraying interval (e.g., 15 minutes / time), and the duration of a single spray (e.g., 30 seconds). Simultaneously, the level of tank 1 can be flexibly adjusted using four support columns 8 evenly distributed at the bottom of tank 1, ensuring a uniform thickness of the fermentation raw material layer (avoiding insufficient local fermentation). Subsequently, the sealing gaskets at each connection point of tank 1 are checked to ensure the airtightness of the fermentation process, mitigating the risk of leakage from the source. This parameter preset function lays the foundation for the standardized implementation of the subsequent fermentation process, solving the problem of the lack of precise parameter presets and reliance on manual experience in traditional devices.

[0035] The temperature control pipe 3 adopts a spiral winding structure that fits tightly against the outer wall of the tank 1, maximizing the contact area with the tank 1 and ensuring heat exchange efficiency. The temperature regulating medium (preferably constant temperature water or food-grade heat transfer oil with high thermal conductivity and good stability) enters the temperature control pipe 3 through the inlet pipe 7 under the command of the control panel 2. During its uniform flow along the spiral path, it achieves efficient heat exchange with the tank 1, thereby achieving precise temperature rise and fall within the tank. After heat exchange, the medium is discharged from the outlet pipe 6 at the top and flows into the externally matched constant temperature storage equipment for temperature recalibration, forming a closed-loop cycle of "transportation-heat exchange-calibration-reflux" to ensure stable temperature of the regulating medium. During this process, a high-precision PT100 temperature sensor 9 installed inside the tank 1 near the raw material area can collect real-time temperature data of the surrounding environment of the raw material inside the tank. The collected analog signal is converted into a digital signal through an electrical connection line and quickly transmitted to the control panel 2. The built-in PID (proportional-integral-derivative) adjustment algorithm of the control panel 2 immediately calculates the difference between the measured temperature and the preset temperature. If the measured temperature is lower than the preset value, the control panel 2 precisely increases the medium flow rate (or increases the medium temperature) of the inlet pipe 7 through an electrical signal to accelerate the heat exchange rate. If the measured temperature is higher than the preset value, the flow rate (or the medium temperature) is reduced to achieve dynamic fine-tuning of the temperature. This closed-loop control can strictly control the temperature fluctuation within the tank within ±0.5℃. The technical benefits are directly reflected in: providing a stable growth and metabolic environment for the fermentation strains, avoiding the decline in strain activity due to temperature fluctuations (temperature fluctuations in traditional devices can reach ±3℃ or more, resulting in a strain activity loss rate of over 20%), significantly improving fermentation efficiency (the fermentation cycle can be shortened by 10-15%), and ensuring the consistency of quality of different batches of lees vinegar products. It solves the core pain point of large fluctuations in product flavor and acidity caused by temperature runaway in traditional devices.

[0036] The inoculation solution is pre-stored in a sterile inoculation box 20, which is stably supported by two L-shaped support frames 18. The sterile inoculation box 20 adopts a sealed design made of 304 stainless steel and has a built-in ultraviolet sterilization module (unlabeled) to perform secondary sterilization on the internal inoculation solution before inoculation, further ensuring the sterility of the inoculation solution. When the preset inoculation time is reached, the control panel 2 sends a precise start signal to the high-precision diaphragm metering pump 22 on the connecting pipe 21 via electrical connection. The metering pump 22, according to the preset inoculation volume parameters, adjusts the pump stroke length (adjustment range 0-100%) and operating frequency to quantitatively export the inoculation solution in the sterile inoculation box 20, with an export accuracy of ±0.5ml, and smoothly delivers it to the inside of the tank 1 through the connecting pipe 21. To avoid uneven fermentation caused by localized accumulation of the inoculum, the control panel 2 synchronously triggers the spray assembly to work in tandem via electrical signals: When the electric slide rail 13, which uses a silent linear slide rail, is powered on, its bottom sliding end drives the spray rod 14 to reciprocate at a uniform speed along the length of the slide rail (the movement speed can be preset and adjusted via the control panel 2, within a range of 5-10 cm / s); simultaneously, external sterile water enters through the water inlet 16 at the top of the tank 1 and is delivered to the interior of the spray rod 14 through a food-grade silicone hose 17 (which has good flexibility, can adapt to the reciprocating movement of the spray rod 14, and is odorless and does not contaminate the material). Because the spray rod 14 is vertically positioned to the electric slide rail 13, and multiple micron-level atomizing spray heads 15 are evenly spaced 5 cm apart at the bottom, the sterile water and inoculum (partially mixed) can be atomized into 5-10 μm microdroplets, achieving comprehensive, no-dead-angle spray coverage of the raw materials inside the tank during the reciprocating movement of the spray rod 14. This module offers significant technological advantages: First, its quantitative inoculation accuracy far surpasses that of traditional manual inoculation (manual inoculation error can reach ±5% or more), effectively avoiding fermentation imbalances caused by inoculation volume deviations (such as insufficient inoculation leading to slow fermentation, or excessive inoculation leading to the growth of miscellaneous bacteria); second, the atomized spray ensures thorough mixing of the inoculation solution and raw materials, improving mixing uniformity by more than 40%, guaranteeing that each portion of raw material can effectively contact the inoculation solution, thus enhancing fermentation uniformity; third, the food-grade materials and aseptic design prevent secondary contamination during the inoculation process, further ensuring product safety.

[0037] A high-precision pressure transmitter (pressure sensor 10) installed on the top of tank 1 can collect the tank's internal air pressure data in real time and transmit the data to control panel 2 via electrical connection. During the fermentation of the fermented vinegar, gases such as carbon dioxide are produced. When the internal air pressure rises to a preset threshold (e.g., 0.12 MPa), control panel 2 immediately controls the one-way exhaust valve 5 to open via an electrical signal, quickly expelling excess gas from the tank. When the air pressure drops to a preset safety threshold (e.g., 0.08 MPa), the one-way exhaust valve 5 automatically closes under electrical signal control, preventing unfiltered air from entering the tank. Simultaneously, to meet the aerobic metabolic needs of some fermentation strains, sterile air inlet 11 continuously introduces air. The air first enters the sterile filter box 12, where it undergoes deep sterile filtration through an internal HEPA high-efficiency filter (0.3 μm filtration accuracy, capable of intercepting over 99.97% of bacteria, dust, and other impurities). The filtered sterile air then enters tank 1, maintaining the oxygen balance within the tank. Furthermore, the sealed design of the aseptic inoculation box 20 and the aseptic liquid delivery path of the spray assembly together create a fully aseptic fermentation environment of "air intake filtration - aseptic inoculation - controllable exhaust". The technical effects of this module are: first, the closed-loop pressure control avoids safety risks such as tank leakage and explosion caused by excessive pressure inside the tank, while preventing the intrusion of outside air due to excessively low pressure; second, the HEPA high-efficiency filtration and the fully aseptic design reduce the contamination rate of miscellaneous bacteria to below 0.5% (the contamination rate of miscellaneous bacteria in traditional devices can reach 5-10%), significantly improving the product qualification rate; third, oxygen balance regulation ensures the normal metabolism of fermentation strains, further increasing the generation of fermentation products (organic acids, flavor substances) and optimizing product flavor.

[0038] The integrated 4G / WiFi dual-mode wireless transmission module within Control Panel 2 is the core support for remote data interaction and large-screen integration. It boasts advantages such as stable transmission speed, low latency (≤50ms), and strong anti-interference capabilities. It can remotely transmit real-time temperature and pressure parameters collected by temperature sensor 9 and pressure sensor 10, as well as operational status data (such as start / stop, working parameters, and fault warning signals) of key components like metering pump 22, electric slide rail 13, and one-way exhaust valve 5, to the backend control terminal (computer, mobile phone, etc.) in real time without any omissions. Simultaneously, it perfectly adapts to the integration requirements of the later large-screen monitoring system. Operators can interface with the large-screen monitoring system via protocol (supporting mainstream industrial communication protocols such as Modbus and MQTT) to achieve visualized display of fermentation data on the large screen, including real-time parameter dynamic updates, historical data curve backtracking, and multi-device data partitioning. No on-site supervision is required. Management personnel can monitor the operation status of one or more fermentation units via a large screen. If parameters need to be adjusted (such as fine-tuning the temperature or spray frequency according to the fermentation progress), instructions can be sent to control panel 2 via the large screen or back-end terminal. After the instructions are received by the wireless transmission module, control panel 2 sends adjustment signals to the corresponding components through electrical connection, achieving remote and precise control. After fermentation is completed, the operator issues a discharge command through control panel 2. The electrical signal controls the solenoid valve on the discharge pipe 4 at the bottom of tank 1 to open, and the fermented lees vinegar product is discharged smoothly. The technological benefits of this intelligent module and wireless transmission function are particularly significant: First, it greatly reduces labor costs. A single unit can operate unattended, and multiple units can be centrally managed through a large screen. Compared to traditional units that require 2-3 people per unit for on-site monitoring, labor costs are reduced by more than 60%. Second, the large-screen visualization monitoring makes fermentation data more intuitive, facilitating managers to quickly identify parameter anomalies and coordinate production scheduling, avoiding fermentation anomalies caused by untimely on-site monitoring, and improving the controllability and management efficiency of the fermentation process. Third, parameter data can be recorded and stored in the backend database in real time through wireless transmission, providing data support for historical data queries and production report generation for the large-screen system. It also facilitates subsequent production process optimization and quality traceability, laying a solid data management foundation for the large-scale and standardized production of vinegar (traditional units struggle to achieve systematic parameter recording and traceability).

[0039] This device, through precise coordination and intelligent control of its various modules, addresses the core pain points of traditional fermentation equipment for vinegar production from multiple dimensions, including constant temperature, quantitative control, aseptic technique, uniform mixing, and safety monitoring. It significantly improves fermentation efficiency and product quality, further ensuring the stability of flavor and consistency of acidity. Simultaneously, its intelligent management and data traceability throughout the entire process helps enterprises meet food production safety traceability standards, enhancing product market competitiveness. Furthermore, the device's modular design facilitates subsequent maintenance, repair, and functional expansion, flexibly adapting to the production needs of vinegar production at different scales. It provides reliable equipment support for the large-scale, standardized production of vinegar and offers a feasible path for the technological upgrading of the traditional fermentation industry, possessing significant industrial application value and promising prospects for promotion.

[0040] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A constant-temperature quantitative inoculation device for fermentation of rice dregs into vinegar, characterized in that, include: The tank has a control panel on its side wall, a wireless transmission module inside the control panel, a temperature control pipe on the outer side wall of the tank for controlling the temperature inside the tank, and a discharge pipe at the bottom of the tank. A spray assembly is disposed on the top wall inside the tank body; An inoculation assembly is disposed at the top of the container, and the bottom of the inoculation assembly extends through the top of the container into the interior of the container.

2. The constant temperature quantitative inoculation device for fermentation of rice dregs vinegar according to claim 1, characterized in that, The side wall of the tank is provided with a one-way exhaust valve, which is connected to the interior of the tank.

3. The constant temperature quantitative inoculation device for fermentation of rice dregs vinegar according to claim 2, characterized in that, A water outlet pipe is provided at one end of the top of the temperature control pipe, and a water inlet pipe is provided at one end of the bottom of the temperature control pipe.

4. The constant temperature quantitative inoculation device for fermentation of rice dregs vinegar according to claim 3, characterized in that, The bottom of the tank is equipped with multiple support columns.

5. The constant temperature quantitative inoculation device for fermentation of rice dregs vinegar according to claim 4, characterized in that, A temperature sensor is installed inside the tank.

6. The constant temperature quantitative inoculation device for fermentation of rice dregs vinegar according to claim 5, characterized in that, A pressure sensor is installed on the top of the tank, and the pressure sensor is used to detect the air pressure inside the tank.

7. The constant temperature quantitative inoculation device for fermentation of rice dregs into vinegar according to claim 6, characterized in that, The top of the tank is also provided with a sterile air inlet, which is connected to the interior of the tank, and a sterile filter box is provided at the sterile air inlet.

8. The constant temperature quantitative inoculation device for fermentation of rice dregs vinegar according to claim 7, characterized in that, The spray assembly includes: An electric slide rail is installed on the top wall inside the tank, and the mounting end at the top of the electric slide rail is fixedly connected to the top wall inside the tank. A spray bar, the top mounting end of which is fixedly connected to the sliding end at the bottom of the electric slide rail, and a plurality of spray heads are spaced apart along the length of the spray bar at the bottom of the spray bar, and the spray heads are in communication with the interior of the spray bar; A water inlet head is located at the top of the tank, and the bottom of the water inlet head is connected to the spray bar via a hose; The spray bar is perpendicular to the electric slide rail.

9. A constant-temperature quantitative inoculation device for fermentation of rice dregs into vinegar according to claim 8, characterized in that, The inoculation component includes: The tank body has two symmetrically arranged support frames on its top, and the axial cross-section of the support frames is L-shaped. A sterile inoculation box is disposed between the two support frames, and the two sides of the sterile inoculation box are respectively fixedly connected to the top of the two support frames; A connecting pipe is provided, the top of which is connected to the aseptic inoculation box, and the bottom of the connecting pipe passes through the tank and extends into the interior of the tank. A metering pump is provided on the connecting pipe.

10. A constant-temperature quantitative inoculation device for fermentation of rice dregs into vinegar according to claim 9, characterized in that, The control panel is electrically connected to the one-way exhaust valve, temperature sensor, pressure sensor, electric slide rail, and metering pump, respectively.

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