A liquor brewing pit adjusting device based on multiple sensors
By using a multi-sensor device to monitor the fermentation pit environment in real time and automatically adjust the lime milk supply, the problem of inaccurate alkaline substance supply in the fermentation pit was solved, thus achieving the stability of the fermentation pit environment and improving the quality of baijiu.
Patent Information
- Application Number
- CN202521710135.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-12
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-12
AI Technical Summary
In the fermentation pits for baijiu, the replenishment of alkaline substances lacks precise quantitative basis, leading to excessive or insufficient replenishment, which affects the acid-base balance of the microbial community and the fermentation process, thus affecting the quality of baijiu.
A multi-sensor device, including a pH sensor, temperature probe, electrode probe, and impedance analyzer, is used to monitor the environment of the pit in real time. The number of microorganisms and acidity are estimated through model algorithms, and the amount of lime slurry replenished is automatically adjusted to maintain the stability of the pit environment.
It achieves precise regulation of the pit environment, reduces pH fluctuation range to ±0.2, improves the stability of lichenin production, and reduces monitoring costs by 85%.
Smart Images
Figure CN224678015U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquor brewing technology, specifically a liquor brewing cellar adjustment device based on multiple sensors. Background Technology
[0002] The fermentation pits are an indispensable core facility in the production of baijiu, and their quality and characteristics directly affect the flavor and quality of the liquor. These pits are primarily constructed of high-quality clay, which undergoes special processing to form dense walls and floors, providing a suitable environment for microorganisms to inhabit and multiply. During the long brewing process, a large number of microbial communities accumulate within the pits. These communities undergo complex biochemical reactions with starches, sugars, and other substances in the raw materials, producing flavor compounds such as alcohols and esters, which give baijiu its unique aroma and taste.
[0003] In the traditional production model of baijiu brewing cellars, the replenishment of alkaline substances has long relied on the experience and judgment of the brewing masters. The timing and amount of replenishment are often determined based on subjective factors such as fermentation time and the apparent state of the materials, lacking precise quantitative basis. This experience-based operation is prone to leading to excessive or insufficient replenishment of alkaline substances: excessive replenishment will disrupt the acid-base balance of the microbial community in the cellar and inhibit the metabolic activity of beneficial bacteria; insufficient replenishment will fail to neutralize the excessive organic acids produced during fermentation, which will also affect the normal reproduction of microorganisms. Utility Model Content
[0004] The purpose of this invention is to provide a multi-sensor-based regulating device for baijiu brewing cellars to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-sensor-based regulating device for a liquor brewing cellar, comprising: a cellar, wherein the cellar has an array of drilled holes arranged inside;
[0006] A sensing component, wherein the sensing component is disposed inside the cellar;
[0007] The sensing component includes a sensing part and a detection part. The sensing part is located inside the pit, and the detection part is located at the top of the pit.
[0008] An adjustment component is disposed at the top of the pit;
[0009] The regulating component includes a stirring part and an adjusting part. The stirring part is located at the top of the pit, and the adjusting part is located inside the pit.
[0010] The adjustment part includes a short pipe, which is set at the top of the pit. A peristaltic pump is fixedly installed at one end of the short pipe, and a support is fixedly installed at the bottom of the peristaltic pump. A connecting pipe is fixedly connected to one side of the peristaltic pump, and a bottom pipe is fixedly connected to one end of the connecting pipe. An impedance analyzer is fixedly installed at the top of the pit.
[0011] Preferably, the sensing part includes a pH sensor, which is fixedly installed inside the drill hole. Epoxy resin, a Pt100 temperature probe, and an electrode probe are fixedly installed inside the drill hole. A communication module is fixedly installed at one end of the pH sensor. The pH sensor, the Pt100 temperature probe, and the electrode probe are all fixedly installed with the epoxy resin.
[0012] Preferably, the detection unit includes a stand, which is fixedly installed on the top of the pit, and a TDR moisture meter is fixedly installed on the top of the stand. A waveguide rod is electrically connected to the back of the TDR moisture meter. The pit is filled with pit mud, and the waveguide rod is fixedly installed inside the pit mud.
[0013] Preferably, the stirring part includes a storage tank, which is fixedly installed on the top of the pit, and a top cover is fixedly installed on the top of the storage tank. A driving component is fixedly installed on the top of the top cover, and a stirring rod is fixedly installed at the output end of the driving component. A plug is provided on the top of the top cover.
[0014] Preferably, the top of the top cover is provided with a feed inlet, the top of the feed inlet is fixedly installed with the plug, and the stirring rod is located inside the storage tank.
[0015] Preferably, the other end of the short pipe is fixedly installed to the storage tank, the peristaltic pump is electrically connected to the impedance analyzer, the bottom pipe is fixedly installed inside the pit mud, and the short pipe is connected to the inside of the storage tank.
[0016] This invention provides a multi-sensor-based regulating device for baijiu (Chinese liquor) brewing cellars. It has the following beneficial effects:
[0017] (1) By setting an adjustment part, the impedance analyzer collects the impedance spectrum every 4 hours and outputs the estimated number of Bacillus / Lactobacillus (error <10%) through model conversion. When the pH drops to 7.2 and the moisture content is >35%, it is determined that the acidity is too high. At this time, the peristaltic pump starts and the lime milk inside the storage tank is transported to the pit through the short pipe, connecting pipe and bottom pipe in sequence to adjust the environment inside the pit. The pH fluctuation range is reduced from ±0.5 to ±0.2, so that the production of lichenin is stably increased.
[0018] (2) This utility model sets up an impedance analyzer, a PT100 temperature probe and a pH sensor, etc. The algorithm of the impedance analyzer is based on the BIA impedance spectrum to establish a microbial community quantity mapping model, which provides a parameter model for the internal activity assessment of the cellar. The impedance method is used to replace the traditional gene detection, which reduces the monitoring cost of a single cellar by 85%. Attached Figure Description
[0019] Figure 1 This is a perspective view of the present utility model;
[0020] Figure 2 This is a top view of the present invention;
[0021] Figure 3 This is a rear view of the present invention;
[0022] Figure 4 This is a view of the internal structure of this utility model.
[0023] In the diagram: 1. Pit, 2. Drill hole, 3. Sensing component, 31. Sensing part, 311. pH sensor, 312. Epoxy resin, 313. Pt100 temperature probe, 314. Electrode probe, 315. Communication module, 32. Detection part, 321. Stand, 322. TDR moisture meter, 323. Waveguide rod, 4. Adjustment component, 41. Stirring part, 411. Storage tank, 412. Top cover, 413. Drive component, 414. Stirring rod, 415. Plug, 42. Adjustment part, 421. Short pipe, 422. Peristaltic pump, 423. Support, 424. Connecting pipe, 425. Bottom pipe, 426. Impedance analyzer. Detailed Implementation
[0024] 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.
[0025] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0026] Example 1
[0027] A preferred embodiment of the multi-sensor-based baijiu brewing cellar regulation device provided by this utility model is, for example... Figure 1-4As shown: A multi-sensor-based baijiu brewing cellar regulation device includes: a cellar 1, with drilled holes 2 arranged in an array inside the cellar 1;
[0028] Sensing component 3 is installed inside the pit 1;
[0029] The sensing component 3 includes a sensing part 31 and a detection part 32. The sensing part 31 is located inside the pit 1, and the detection part 32 is located on the top of the pit 1.
[0030] The sensing part 31 includes a pH sensor 311, which is fixedly installed inside the drill hole 2. Epoxy resin 312, PT100 temperature probe 313, and electrode probe 314 are fixedly installed inside the drill hole 2. A communication module 315 is fixedly installed at one end of the pH sensor 311. The pH sensor 311, PT100 temperature probe 313, and electrode probe 314 are all fixedly installed with the epoxy resin 312.
[0031] The detection unit 32 includes a stand 321, which is fixedly installed on the top of the pit 1. A TDR moisture meter 322 is fixedly installed on the top of the stand 321. A waveguide rod 323 is electrically connected to the back of the TDR moisture meter 322. The pit 1 is filled with pit mud, and the waveguide rod 323 is fixedly installed inside the pit mud.
[0032] The communication module 315 uses a 4G / 5G network to transmit signals to the impedance analyzer 426. The communication module 315 is electrically connected to the pH sensor 311, the pt100 temperature probe 313, and the electrode probe 314. All kinds of sensors are fixedly installed inside the borehole 2 and sealed with epoxy resin 312. The sensors are arranged in a grid pattern.
[0033] pH sensor 311 is an antimony electrode pH sensor with an external zirconia ceramic shell, 1.5–2.5 mm thick, and a polytetrafluoroethylene coating on the electrode surface. It is used to detect the pH value inside the pit 1. The waveguide rod 323 of the TDR moisture meter 322 is inserted into the pit mud at a 30° angle to detect the moisture in the pit. The Pt100 temperature probe 313 is armored with stainless steel and has a temperature range of 0–100℃. It is used to detect the temperature inside the pit 1.
[0034] Example 2
[0035] Based on Example 1, a preferred embodiment of the multi-sensor-based baijiu brewing cellar regulation device provided by this utility model is as follows: Figure 1-4 As shown: Adjustment component 4, which is located at the top of the pit 1;
[0036] The regulating component 4 includes a stirring part 41 and an regulating part 42. The stirring part 41 is located at the top of the pit 1, and the regulating part 42 is located inside the pit 1.
[0037] The stirring unit 41 includes a storage tank 411, which is fixedly installed on the top of the pit 1. A top cover 412 is fixedly installed on the top of the storage tank 411. A driving component 413 is fixedly installed on the top of the top cover 412. A stirring rod 414 is fixedly installed at the output end of the driving component 413. A plug 415 is provided on the top of the top cover 412. A feed inlet is provided on the top of the top cover 412. The top of the feed inlet is fixedly installed with the plug 415. The stirring rod 414 is located inside the storage tank 411.
[0038] The adjustment part 42 includes a short pipe 421, which is set at the top of the pit 1. A peristaltic pump 422 is fixedly installed at one end of the short pipe 421. A support 423 is fixedly installed at the bottom of the peristaltic pump 422. A connecting pipe 424 is fixedly connected to one side of the peristaltic pump 422. A bottom pipe 425 is fixedly connected to one end of the connecting pipe 424. An impedance analyzer 426 is fixedly installed at the top of the pit 1. The other end of the short pipe 421 is fixedly installed to the storage tank 411. The peristaltic pump 422 and the impedance analyzer 426 are electrically connected. The bottom pipe 425 is fixedly installed inside the pit mud. The short pipe 421 is connected to the inside of the storage tank 411.
[0039] The storage tank 411 is filled with lime slurry, which is fed into the storage tank 411 through the feed hopper. The feed inlet is sealed by the plug 415. The drive unit 413 is a motor, which drives the stirring rod 414 to rotate to prevent the lime slurry from accumulating inside the storage tank 411.
[0040] The core function of the impedance analyzer 426 is to apply alternating current signals of different frequencies to the object being measured, and calculate the impedance value of the material (including resistive and reactive components) by detecting the voltage response of the signal in the material. In the fermentation environment of a fermentation pit, fermented materials (such as distiller's grains, etc.) contain a large number of microorganisms, water, electrolytes, and organic metabolites. These components form a complex "bioelectrochemical system": the permeability of microbial cell membranes, the migration of ions generated by intracellular metabolic activities, and the moisture content and acidity of the material all affect the material's ability to conduct and store alternating current, thereby changing the overall impedance characteristics. The algorithm of the impedance analyzer 426 is based on the BIA impedance spectrum to establish a microbial population mapping model (example formula: Log(CFU / g)=k·ΔZ / Z0+b, where ΔZ is the impedance change rate and Z0 is the baseline impedance). For example, when the microbial activity is high, ion exchange inside and outside the cell membrane is frequent, and the conductivity of the material is enhanced (impedance decreases); when microbial metabolism slows down or the material dries, ion migration is hindered, and the impedance value increases.
[0041] The peristaltic pump 422 is a flow-type peristaltic pump. The flow-type peristaltic pump achieves stable volumetric flow output by precisely controlling the pump head speed and the amount of tubing compression. It can maintain an accuracy within ±1% in the range of low flow (μL / min level) to medium-high flow (L / min level). The electrode probe 314 is the probe of the impedance analyzer 426.
[0042] Impedance analyzer 426 collects impedance spectra every 4 hours, outputs estimated quantities of Bacillus and Lactobacillus after model conversion, with the error controlled within 10%. When the pH value drops to 7.2 and the moisture content exceeds 35%, it is determined that the acidity is too high. At this time, peristaltic pump 422 is started, and lime slurry in storage tank 411 is transported to the inside of pit 1 through short pipe 421, connecting pipe 424 and bottom pipe 425 in sequence, thereby regulating the internal environment of pit 1.
[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A multi-sensor-based regulating device for baijiu (Chinese liquor) brewing cellars, characterized in that, It includes: a cellar (1), wherein the interior of the cellar (1) is provided with drilled holes (2); Sensing component (3), the sensing component (3) is disposed inside the cellar (1); The sensing component (3) includes a sensing part (31) and a detection part (32). The sensing part (31) is located inside the cellar (1), and the detection part (32) is located on the top of the cellar (1). Adjustment component (4), said adjustment component (4) is disposed on top of the pit (1); The regulating component (4) includes a stirring part (41) and an regulating part (42). The stirring part (41) is located at the top of the pit (1), and the regulating part (42) is located inside the pit (1). The adjustment part (42) includes a short pipe (421), which is set at the top of the pit (1). A peristaltic pump (422) is fixedly installed at one end of the short pipe (421). A support (423) is fixedly installed at the bottom of the peristaltic pump (422). A connecting pipe (424) is fixedly connected to one side of the peristaltic pump (422). A bottom pipe (425) is fixedly connected to one end of the connecting pipe (424). An impedance analyzer (426) is fixedly installed at the top of the pit (1).
2. The multi-sensor-based regulating device for baijiu brewing cellars according to claim 1, characterized in that: The sensing part (31) includes a pH sensor (311), which is fixedly installed inside the borehole (2). Epoxy resin (312), a PT100 temperature probe (313), and an electrode probe (314) are fixedly installed inside the borehole (2). A communication module (315) is fixedly installed at one end of the pH sensor (311). The pH sensor (311), the PT100 temperature probe (313), and the electrode probe (314) are all fixedly installed with the epoxy resin (312).
3. The multi-sensor-based regulating device for baijiu brewing cellars according to claim 1, characterized in that: The detection unit (32) includes a stand (321), which is fixedly installed on the top of the pit (1). A TDR moisture meter (322) is fixedly installed on the top of the stand (321). A waveguide rod (323) is electrically connected to the back of the TDR moisture meter (322). The pit (1) is filled with pit mud, and the waveguide rod (323) is fixedly installed inside the pit mud.
4. The multi-sensor-based regulating device for baijiu brewing cellars according to claim 1, characterized in that: The stirring part (41) includes a storage tank (411), which is fixedly installed on the top of the pit (1). A top cover (412) is fixedly installed on the top of the storage tank (411), and a driving component (413) is fixedly installed on the top of the top cover (412). A stirring rod (414) is fixedly installed at the output end of the driving component (413), and a plug (415) is provided on the top of the top cover (412).
5. A multi-sensor-based regulating device for baijiu brewing cellars according to claim 4, characterized in that: The top of the top cover (412) is provided with a feed inlet, and the top of the feed inlet is fixedly installed with the plug (415). The stirring rod (414) is located inside the storage tank (411).
6. A multi-sensor-based regulating device for baijiu brewing cellars according to claim 4, characterized in that: The other end of the short pipe (421) is fixedly installed with the storage tank (411), the peristaltic pump (422) is electrically connected with the impedance analyzer (426), the bottom pipe (425) is fixedly installed inside the pit mud, and the short pipe (421) is connected to the inside of the storage tank (411).