Low-temperature fermentation tank for yellow rice wine
By installing a stratified sampler and multiple sampling tubes of different lengths at the top of the rice wine fermentation tank, combined with solenoid valve control, the inconvenience of sampling and sample mixing caused by a single sampling tube were solved, achieving high-precision stratified sampling and detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LANGMAI CLEAN TECHNOLOGY CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-26
AI Technical Summary
The sampling tube of the existing rice wine fermentation tank is a single structure, which cannot automatically adjust the depth, making sampling inconvenient and easily disturbing the fermentation liquid, thus affecting the accuracy of the test.
A stratified sampler is installed at the top of the fermenter, equipped with multiple sampling tubes of different lengths and solenoid valves. Automatic stratified sampling is achieved through solenoid valve control, avoiding sample mixing.
This technology enables independent sampling at different depths within the fermenter, improving detection accuracy and sample independence, and ensuring accurate assessment of the fermentation process.
Smart Images

Figure CN224411708U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fermentation tank technology, and in particular to a low-temperature fermentation tank for rice wine. Background Technology
[0002] Low-temperature fermentation tank for rice wine is a special equipment used for brewing rice wine. It is usually made of stainless steel and can maintain a low-temperature environment inside the tank through temperature control equipment, which can promote the growth of fermentation species and sugar conversion, and preserve the aroma substances of rice wine.
[0003] During the fermentation process of Shaoxing wine, a small amount of mash needs to be extracted from the fermentation tank periodically. By detecting the sugar content, alcohol content, acidity, yeast activity, and microbial status of the sample, it is possible to determine whether the fermentation process is normal and adjust parameters such as temperature and material addition in a timely manner. For example, the Chinese utility model patent disclosed in the existing announcement number CN220432758U: Shaoxing wine fermentation tank with layered sampling. The sampling component set in this application is convenient for layered sampling and easy to use. However, this application achieves this by setting a sampling tube that can move vertically inside the sampling shell. Therefore, the sampling tube in this application is a single structure. When sampling the wine at different depths, it is impossible to achieve automatic vertical displacement adjustment of the sampling tube. It is still necessary to manually adjust the depth of the sampling tube end in the wine, which makes sampling inconvenient. Secondly, the setting of a single sampling tube will cause the residual liquid in the sampling tube to affect the accuracy of subsequent sampling, and the movement process is prone to disturbing the fermentation liquid, causing the upper and lower layers of samples to mix and destroy the original layered state. Utility Model Content
[0004] The purpose of this invention is to provide a low-temperature fermentation tank for rice wine, which has a sampler at the top of the fermentation tank that can perform layered sampling and is equipped with sampling tubes of different depths. This allows for layered sampling, prevents sample mixing, improves detection accuracy, and effectively solves the problems in the background technology.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A low-temperature fermentation tank for rice wine includes a fermentation tank with multiple support pillars fixedly installed on its outer side. An inlet is fixedly installed on the top of the fermentation tank, and a base is fixedly installed on the top of the fermentation tank near the inlet. A sampler is mounted on the base. The sampler includes a protective shell, an air pipe fixedly installed on the top of the protective shell, and a sampling pump fixedly installed on the top of the air pipe. The sampling pump is electrically connected to an external main controller via a cable. A first multi-port pipe is fixedly installed at the end of the air pipe away from the sampling pump, and multiple ends of the first multi-port pipe are respectively fixedly installed with second multi-port pipes. A base is fixedly installed at the bottom of the protective shell, and the base is fixedly installed on the base.
[0007] As a further preferred embodiment of this utility model, a jacket is fixedly installed on the outside of the fermentation tank, and an inlet pipe and an outlet pipe are fixedly installed on the outside of the jacket. The jacket is set on the outside of the fermentation tank and connected to an external circulation pump, which can be used with a cooling medium to conduct heat and cool down the wine in the fermentation tank.
[0008] As a further preferred embodiment of this utility model, an inspection door is fixedly installed on the outside of the fermentation tank.
[0009] As a further preferred embodiment of this utility model, a slag discharge hopper is fixedly installed at the bottom of the fermentation tank. The slag discharge hopper can discharge and clean the residue accumulated in the slag discharge hopper after the rice wine is discharged. A drain pipe is fixedly installed on one side of the slag discharge hopper. By utilizing the low position setting of the slag discharge hopper, the rice wine in the fermentation tank can be discharged through the slag discharge hopper and the drain pipe.
[0010] As a further preferred embodiment of this utility model, the first multi-way pipe is a four-way pipe structure.
[0011] As a further preferred embodiment of this utility model, the second multi-port pipe is a three-way pipe structure. A first solenoid valve is fixedly installed at one end of the second multi-port pipe. A sampling pipe is fixedly installed at the end of the first solenoid valve opposite to the second multi-port pipe and extends to the outside of the fermentation tank. A second solenoid valve is fixedly installed at the end of the second multi-port pipe away from the first multi-port pipe. The first solenoid valve and the second solenoid valve are electrically connected to an external main controller via cables. One end of the second multi-port pipe is connected to one end of the first multi-port pipe, and the other two ends are fixedly installed with the first solenoid valve and the second solenoid valve, respectively. This allows the negative pressure generated by the sampling pump to draw the wine in the fermentation tank into the second multi-port pipe, and the sampling operation is performed by closing the second solenoid valve and opening the first solenoid valve.
[0012] As a further preferred embodiment of this utility model, a sampling tube is fixedly installed at the end of the second solenoid valve away from the second multi-port pipe, and the multiple sampling tubes have different lengths. One end of the multiple sampling tubes of different lengths is inserted into the fermentation tank, thereby realizing the sampling operation of wine at different depths in the fermentation tank.
[0013] As a further preferred embodiment of this utility model, multiple ventilation openings are provided on the inner side of the protective shell to achieve heat dissipation and ventilation for the first solenoid valve and the second solenoid valve.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] In this invention, a sampler is installed at the top of the fermentation tank. The sampler consists of a protective shell, an air pipe, a sampling pump, a first multi-port pipe, and a second multi-port pipe. A first solenoid valve and a second solenoid valve are respectively installed at two ends of the multiple second multi-port pipes. The sampling tube at one end of the second solenoid valve is used to sample the wine in the fermentation tank. The ends of the multiple sampling tubes are placed at different depths in the fermentation tank, thereby achieving stratified sampling without interference, preventing sample mixing and improving detection accuracy. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the sampler structure of this utility model;
[0018] Figure 3 This is a cross-sectional view of the sampler of this utility model.
[0019] In the diagram: 1. Fermentation tank; 2. Support column; 3. Feed inlet; 4. Base; 5. Sampler; 6. Protective shell; 7. Gas pipe; 8. Sampling pump; 9. First multi-port pipe; 10. Base; 11. Second multi-port pipe; 12. Inspection door; 13. Slag hopper; 14. Drain pipe; 15. Ventilation port; 16. First solenoid valve; 17. Second solenoid valve; 18. Sampling tube. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] like Figures 1-3 As shown, the present invention provides a low-temperature fermentation tank for rice wine, including a fermentation tank 1, multiple support columns 2 fixedly installed on the outside of the fermentation tank 1, a feed inlet 3 fixedly installed on the top of the fermentation tank 1, a base 4 fixedly installed on the top of the fermentation tank 1 near the feed inlet 3, a sampler 5 provided on the base 4, the sampler 5 including a protective shell 6, an air pipe 7 fixedly installed on the top of the protective shell 6, a sampling pump 8 fixedly installed on the top of the air pipe 7, and the sampling pump 8 is electrically connected to an external main controller via a cable, a first multi-port pipe 9 fixedly installed at the end of the air pipe 7 away from the sampling pump 8, and a second multi-port pipe 11 fixedly installed at multiple ends of the first multi-port pipe 9, and a base 10 fixedly installed at the bottom of the protective shell 6, the base 10 being fixedly installed on the base 4.
[0022] like Figure 1As shown, a jacket is fixedly installed on the outside of the fermentation tank 1. An inlet pipe and an outlet pipe are fixedly installed on the outside of the jacket. The jacket is set on the outside of the fermentation tank 1 and connected to an external circulation pump. It can be used with a cooling medium to conduct heat and cool down the wine in the fermentation tank 1. An inspection door 12 is fixedly installed on the outside of the fermentation tank 1. A slag discharge hopper 13 is fixedly installed at the bottom of the fermentation tank 1. The slag discharge hopper 13 can discharge and clean the residue accumulated in the slag discharge hopper 13 after the yellow wine is discharged. A drain pipe 14 is fixedly installed on one side of the slag discharge hopper 13. By utilizing the low position of the slag discharge hopper 13, the yellow wine in the fermentation tank 1 can be discharged through the slag discharge hopper 13 and the drain pipe 14.
[0023] like Figures 2-3 As shown, the first multi-port pipe 9 is a four-way pipe structure, and the second multi-port pipe 11 is a three-way pipe structure. A first solenoid valve 16 is fixedly installed at one end of the second multi-port pipe 11. A discharge pipe is fixedly installed at the end of the second multi-port pipe 11 opposite to the first solenoid valve 16, extending to the outside of the fermenter 1. A second solenoid valve 17 is fixedly installed at the end of the second multi-port pipe 11 away from the first multi-port pipe 9. The first solenoid valve 16 and the second solenoid valve 17 are electrically connected to an external main controller via cables. One end of the second multi-port pipe 11 is connected to one end of the first multi-port pipe 9, and the other two ends are fixedly installed with the first solenoid valve 16 and the second solenoid valve 17, respectively. Two solenoid valves 17 are used to draw the wine from the fermentation tank 1 into the second multi-port pipe 11 using the negative pressure generated by the sampling pump 8. By closing the second solenoid valve 17 and opening the first solenoid valve 16, the sampling operation is performed. A sampling tube 18 is fixedly installed at the end of the second solenoid valve 17 away from the second multi-port pipe 11. Multiple sampling tubes 18 are of different lengths. One end of multiple sampling tubes 18 of different lengths is inserted into the fermentation tank 1 to achieve sampling of wine at different depths in the fermentation tank 1. Multiple ventilation ports 15 are opened on the inner side of the protective shell 6 to achieve heat dissipation and ventilation of the first solenoid valve 16 and the second solenoid valve 17.
[0024] It should be noted that this utility model is a low-temperature fermentation tank for rice wine. When sampling the wine at different depths within the fermentation tank 1, the external controller first opens one of the second solenoid valves 17, thereby connecting the corresponding sampling tube 18 to the gas pipe 7 via the second solenoid valve 17, the second multi-port pipe 11, and the first multi-port pipe 9. Then, the external controller starts the sampling pump 8, creating a negative pressure through the gas pipe 7 within the first multi-port pipe 9 and the second multi-port pipe 11. Under this negative pressure, the wine at the depth of the sampling tube 18 is drawn into the second multi-port pipe 11. 1. The sample is temporarily stored, and the length of the corresponding sampling tube 18 is determined according to the opening and closing sequence of the second solenoid valve 17, thereby controlling the start and stop cycle of the sampling pump 8. Then, the second solenoid valve 17 and the sampling pump 8 are closed, and the corresponding first solenoid valve 16 is opened. The sample flows into the discharge tube through the second multi-port tube 11 and the corresponding first solenoid valve 16 for container collection. Then, the other two sets of first solenoid valves 16 and second solenoid valves 17 can be controlled in the same way as above, and in conjunction with the other two sampling tubes 18, the wine sample at other depths in the fermentation tank 1 can be sampled.
[0025] By using multiple sets of sampling tubes 18 at fixed depths, disturbances and contamination caused by the movement of a single tube are avoided. Sampling tubes 18 at different depths are controlled by solenoid valves to achieve stratified sampling, ensuring sample independence and improving detection accuracy. This allows for the accurate acquisition of data such as sugar content and alcohol content of wine at different depths within the fermentation tank 1, thus determining the uniformity of fermentation.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A low-temperature fermentation tank for rice wine, characterized in that: The fermenter includes a fermenter (1), on which multiple support columns (2) are fixedly installed. A feed inlet (3) is fixedly installed on the top of the fermenter (1). A base (4) is fixedly installed on the top of the fermenter (1) near the feed inlet (3). A sampler (5) is provided on the base (4). The sampler (5) includes a protective shell (6). A gas pipe (7) is fixedly installed on the top of the protective shell (6). A sampling pump (8) is fixedly installed on the top of the gas pipe (7). The sampling pump (8) is electrically connected to an external main controller via a cable. A first multi-port pipe (9) is fixedly installed at one end of the gas pipe (7) away from the sampling pump (8). A second multi-port pipe (11) is fixedly installed at multiple ends of the first multi-port pipe (9). A base (10) is fixedly installed at the bottom of the protective shell (6). The base (10) is fixedly installed on the base (4).
2. The low-temperature fermentation tank for rice wine according to claim 1, characterized in that: A jacket is fixedly installed on the outside of the fermenter (1), and an inlet pipe and an outlet pipe are fixedly installed on the outside of the jacket.
3. The low-temperature fermentation tank for rice wine according to claim 1, characterized in that: An inspection door (12) is fixedly installed on the outside of the fermentation tank (1).
4. The low-temperature fermentation tank for rice wine according to claim 1, characterized in that: The fermenter (1) is fixedly installed with a slag discharge hopper (13) at the bottom, and a liquid discharge pipe (14) is fixedly installed on one side of the slag discharge hopper (13).
5. The low-temperature fermentation tank for rice wine according to claim 1, characterized in that: The first multi-port pipe (9) has a four-port pipe structure.
6. The low-temperature fermentation tank for rice wine according to claim 1, characterized in that: The second multi-way pipe (11) is a three-way pipe structure. A first solenoid valve (16) is fixedly installed at one end of the second multi-way pipe (11). A sample discharge pipe is fixedly installed at the end of the first solenoid valve (16) opposite to the second multi-way pipe (11) and extends to the outside of the fermenter (1). A second solenoid valve (17) is fixedly installed at the end of the second multi-way pipe (11) away from the first multi-way pipe (9). The first solenoid valve (16) and the second solenoid valve (17) are electrically connected to the external main controller through cables.
7. A low-temperature fermentation tank for rice wine according to claim 6, characterized in that: The second solenoid valve (17) has a sampling tube (18) fixedly installed at one end away from the second multi-port pipe (11), and the multiple sampling tubes (18) have different lengths.
8. A low-temperature fermentation tank for rice wine according to claim 1, characterized in that: Multiple ventilation openings (15) are provided on the inner side of the protective shell (6).