Sterile sampling valve for yellow rice wine storage tank

Abstract

The application provides a yellow rice wine storage tank aseptic sampling valve, belonging to the technical field of yellow rice wine production. The yellow rice wine storage tank aseptic sampling valve, including a material taking cylinder, a storage tank connecting port is arranged at the top of the material taking cylinder, a filter cylinder is butt jointed to the upper end of the storage tank connecting port, a piston is arranged in the material taking cylinder, a refrigerator is fixed to the lower end of the piston, a compression spring is arranged at the bottom of the refrigerator, a negative pressure pump is installed at the bottom of the material taking cylinder, a sampling port and a steam inlet are arranged on the sidewall of the material taking cylinder, a steam pipe is butt jointed to the steam inlet, and a valve body is installed on the steam pipe. The refrigerator is driven to cool the inner wall by the downward movement of the piston, and the separated structure is adopted, so that high-temperature sterilization is facilitated, the sampling process is prevented from being easily contaminated, the filter structure with backwashing function is adopted, effective filtration is realized, the sampling port is prevented from being blocked, and the problems existing in the traditional natural cooling are solved.

Description

Technical Field

[0001] This application relates to the field of rice wine production, and more specifically, to a sterile sampling valve for rice wine storage tanks. Background Technology

[0002] Currently, as a traditional consumer product, rice wine is healthier and lower in alcohol content than baijiu (white liquor), and has health benefits. With the continuous improvement of people's living standards, the demand for the quantity and variety of rice wine is constantly increasing. Fermentation has become a very important part of the rice wine brewing industry. As an important piece of equipment in the winemaking process, the fermentation tank has a great impact on the efficiency and quality of fermentation. During the production and fermentation process of rice wine, it is necessary to regularly sample and test the solution.

[0003] Regular sampling and testing of rice wine storage tanks during the production process is a key step in ensuring the quality of the wine, involving core technologies such as sampling device design, aseptic operation, testing indicators and standardized procedures.

[0004] The existing technical solutions mentioned above have the following drawbacks: existing sampling valves mostly adopt a straight-through structure, which is difficult to sterilize, making them susceptible to contamination during the sampling process and affecting the accuracy of the test results; particulate matter can easily clog the sampling port. Utility Model Content

[0005] To overcome the above shortcomings, this application provides a sterile sampling valve for rice wine storage tanks, which aims to improve the problems of difficulty in sterilization and easy clogging during sampling.

[0006] This application provides a sterile sampling valve for a rice wine storage tank, including a sampling cylinder. The top of the sampling cylinder has a storage tank connection port, and a filter cylinder is connected to the upper end of the storage tank connection port. A piston is installed inside the sampling cylinder, and a cooler is fixed to the lower end of the piston. A compression spring is installed at the bottom of the cooler. A negative pressure pump is installed at the bottom of the sampling cylinder. A sampling port and a steam inlet are opened on the side wall of the sampling cylinder. A steam pipe is connected to the steam inlet, and a valve body is installed on the steam pipe.

[0007] In a preferred embodiment of this utility model, the sampling port is diagonally arranged opposite to the steam inlet, the sampling port is located above the steam inlet, and the sampling port is equipped with a one-way valve that only allows one-way drainage.

[0008] In a preferred embodiment of this utility model, a solenoid valve is installed at the tank connection port, a flange is fixed at the upper end of the sampling cylinder, a sealing gasket is provided between the flange and the tank connection port, and the flange is connected to the sampling interface of the container.

[0009] In a preferred embodiment of this utility model, inside the sampling cylinder, the space formed between the storage tank connection port and the piston is a sampling chamber, and the space formed between the piston and the negative pressure pump is a vacuum chamber, with the compression spring disposed in the vacuum chamber.

[0010] In a preferred embodiment of this utility model, the lower end of the filter cylinder is provided with an external thread, and the tank connection port is provided with an internal thread. The lower end of the filter cylinder and the tank connection port are fixed together by the internal thread and the external thread.

[0011] In a preferred embodiment of this utility model, the cooler is a cylinder, the circumferential surface of which is in contact with the inner wall of the material receiving cylinder, which can fully absorb the excess heat of the inner wall of the material receiving cylinder and achieve rapid cooling of the inner wall of the material receiving cylinder.

[0012] In a preferred embodiment of this utility model, the cooler includes a cylindrical heat-conducting block and a semiconductor cooling chip. The outer wall of the cylindrical heat-conducting block is attached to the inner wall of the feeding cylinder. A receiving groove is formed inside the cylindrical heat-conducting block. The cooling surface of the semiconductor cooling chip is attached to the inner surface of the cylindrical heat-conducting block.

[0013] In a preferred embodiment of this utility model, a plurality of semiconductor cooling chips are provided, and the plurality of semiconductor cooling chips are arranged in a ring within the receiving groove. The lower port of the cylindrical heat-conducting block is covered with a sealing cap, and the sealing cap is sealed and fitted to the port of the receiving groove. The upper end of the compression spring abuts against the lower surface of the sealing cap.

[0014] In a preferred embodiment of this utility model, the sealing cover has a through hole on its surface, the through hole is connected to a heat-insulating corrugated pipe, the heat-insulating corrugated pipe has a built-in tension spring, the movement of the tension spring is connected to the sealing cover, and the other end of the tension spring is connected to the bottom of the heat-insulating corrugated pipe; the surface of the heat-insulating corrugated pipe is covered with a heat-insulating coating.

[0015] During operation, the heat generated by the thermoelectric cooler is collected in the insulated bellows through the through-holes. The high temperature pushes the insulated bellows to extend, simultaneously pulling the tension spring to lock in the heat generated by the thermoelectric cooler and prevent it from diffusing into the sampling cylinder. Under negative pressure, the lower end of the piston presses tightly against the cylindrical heat-conducting block, causing the lower end of the cylindrical heat-conducting block to press tightly against the sealing cap. After sampling is completed, the spring pushes the piston back to its original position, releasing the pressure of the lower end of the cylindrical heat-conducting block on the sealing cap. This allows the heat collected in the insulated bellows to diffuse into the sampling cylinder through the through-holes. At the same time, high-temperature steam is used to sterilize the inner wall of the sampling cylinder, achieving secondary utilization of the heat.

[0016] Beneficial Effects: This application provides a sterile sampling valve for rice wine storage tanks. Opening the valve body introduces steam into the vacuum chamber for sterilization. The steam exits from the sampling port, simultaneously sterilizing the sampling port. After sterilization, the valve body is closed, and a negative pressure pump is activated to evacuate the vacuum chamber, creating a negative pressure environment. This causes the piston to move downwards under atmospheric pressure, simultaneously moving the cooler downwards. The cooler cools the sample by passing through the inner wall of the sampling cylinder, ensuring a suitable sampling temperature. As the piston moves downwards, the compression spring is compressed. After the piston passes the sampling port, the sample in the sample chamber is discharged through the sampling port for collection. A filter cartridge filters large particles in the sample, preventing blockage of the sampling port. After sampling, opening the valve body allows high-pressure steam to quickly fill the vacuum chamber and, together with the compression spring, push the piston upwards. The rapidly moving piston pushes the liquid in the sampling chamber back into the container, and the resulting impact backwashes the filter cartridge, preventing clogging of the filter mesh.

[0017] Because the inner wall temperature of the sampling cylinder is too high after high-temperature sterilization, immediate sampling can lead to significant deviations in the physicochemical properties, biological characteristics, and biological activity of the samples from the actual situation. Natural cooling poses a risk of contamination by other microorganisms. Cooling by discharging fermentation and culture materials results in the waste of a large amount of these materials, especially when the total volume of fermentation and culture is small. This waste can also lead to significant changes in fermentation volume, significantly impacting the fermentation and culture process. Therefore, a piston-driven cooling system lowers the inner wall temperature. A partitioned structure facilitates separate high-temperature sterilization, preventing contamination during sampling. A backwashing filter ensures effective filtration, preventing clogging of the sampling port and resolving the problems associated with traditional natural cooling. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the aseptic sampling valve for rice wine storage tank provided in the embodiments of this application;

[0020] Figure 2 A cross-sectional view of the material handling cylinder provided in the embodiments of this application;

[0021] Figure 3 A three-dimensional structural diagram of the piston and cooler connection provided for an embodiment of this application;

[0022] Figure 4 A three-dimensional structural diagram of a cylindrical heat-conducting block provided for an embodiment of this application;

[0023] Figure 5 A cross-sectional three-dimensional structural diagram of the heat-insulating corrugated pipe provided in the embodiments of this application.

[0024] In the diagram: 100, material receiving cylinder; 101, storage tank connection port; 103, sampling port; 105, compression spring; 107, steam inlet; 108, one-way valve; 109, flange; 110, filter cylinder; 130, piston; 150, refrigerator; 151, cylindrical heat-conducting block; 152, semiconductor refrigeration chip; 153, sealing cover; 154, through hole; 155, heat-insulating corrugated pipe; 156, tension spring; 170, negative pressure pump; 190, steam pipe; 191, valve body. Detailed Implementation

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0028] Please see Figures 1-5This utility model provides a sterile sampling valve for rice wine storage tanks, including a sampling cylinder 100. The top of the sampling cylinder 100 is provided with a storage tank connection port 101. A filter cylinder 110 is connected to the upper end of the storage tank connection port 101. A piston 130 is provided inside the sampling cylinder 100. A cooler 150 is fixed to the lower end of the piston 130. A compression spring 105 is provided at the bottom of the cooler 150. A negative pressure pump 170 is installed at the bottom of the sampling cylinder 100. A sampling port 103 and a steam inlet 107 are provided on the side wall of the sampling cylinder 100. A steam pipe 190 is connected to the steam inlet 107. A valve body 191 is installed on the steam pipe 190.

[0029] In a specific embodiment of this utility model, the sampling port 103 is diagonally arranged with the steam inlet 107, the sampling port 103 is located above the steam inlet 107, and a one-way valve 108 that only allows one-way liquid discharge is installed at the port of the sampling port 103.

[0030] In a specific embodiment of this utility model, a solenoid valve is installed at the tank connection port 101, a flange 109 is fixed at the upper end of the sampling cylinder 100, a sealing gasket is provided between the flange 109 and the tank connection port 101, and the flange 109 is connected to the sampling interface of the container.

[0031] In a specific embodiment of this utility model, inside the sampling cylinder 100, the space formed between the storage tank connection port 101 and the piston 130 is a sampling chamber, and the space formed between the piston 130 and the negative pressure pump 170 is a vacuum chamber, and the compression spring 105 is disposed in the vacuum chamber.

[0032] In a specific embodiment of this utility model, the lower end of the filter cylinder 110 is provided with an external thread, and the tank connection port 101 is provided with an internal thread. The lower end of the filter cylinder 110 and the tank connection port 101 are fixed together by the internal thread and the external thread.

[0033] In a specific embodiment of this utility model, the cooler 150 is a cylinder, and the circumferential surface of the cylinder is in contact with the inner wall of the material taking cylinder 100, which can fully absorb the excess heat of the inner wall of the material taking cylinder 100 and achieve rapid cooling of the inner wall of the material taking cylinder 100.

[0034] In a specific embodiment of this utility model, the cooler 150 includes a cylindrical heat-conducting block 151 and a semiconductor cooling chip 152. The outer wall of the cylindrical heat-conducting block 151 is attached to the inner wall of the feeding cylinder 100. A receiving groove is formed in the cylindrical heat-conducting block 151. The cooling surface of the semiconductor cooling chip 152 is attached to the inner surface of the cylindrical heat-conducting block 151.

[0035] In a specific embodiment of this utility model, a plurality of semiconductor cooling chips 152 are provided, and the plurality of semiconductor cooling chips 152 are arranged in a ring in the receiving groove. The lower port of the cylindrical heat-conducting block 151 is covered with a sealing cover 153, and the sealing cover 153 is sealed and fitted to the port of the receiving groove. The upper end of the compression spring 105 abuts against the lower surface of the sealing cover 153.

[0036] In a specific embodiment of this utility model, a through hole 154 is provided on the surface of the sealing cover 153, and a heat-insulating corrugated pipe 155 is connected to the through hole 154. A tension spring 156 is built into the heat-insulating corrugated pipe 155, and the movement of the tension spring 156 is connected to the sealing cover 153. The other end of the tension spring 156 is connected to the bottom of the heat-insulating corrugated pipe 155. A heat-insulating coating is applied to the surface of the heat-insulating corrugated pipe 155.

[0037] During operation, the heat generated by the thermoelectric cooler 152 is collected in the heat-insulating bellows 155 through the through hole 154. The high temperature pushes the heat-insulating bellows 155 to extend, and at the same time pushes the tension spring 156 to stretch, locking the heat generated by the thermoelectric cooler 152 and preventing it from spreading into the sampling cylinder 100. Under negative pressure, the lower end of the piston 130 presses tightly against the cylindrical heat-conducting block 151, so that the lower end of the cylindrical heat-conducting block 151 presses tightly against the sealing cover 153. After sampling is completed, the compression spring 105 pushes the piston 130 to reset, and the pressure of the lower end of the cylindrical heat-conducting block 151 on the sealing cover 153 is released, allowing the heat collected in the heat-insulating bellows 155 to diffuse into the sampling cylinder 100 through the through hole 154. At the same time, together with high-temperature steam, the inner wall of the sampling cylinder 100 is sterilized at high temperature, realizing the secondary utilization of heat.

[0038] The working principle of the aseptic sampling valve for the rice wine storage tank is as follows: During use, a temperature sensor is built into the sampling cylinder 100 to detect the temperature change of the inner wall in real time. The valve body 191 is opened to introduce steam into the vacuum chamber for sterilization. The steam is sprayed out from the sampling port 103, which is also sterilized. After sterilization, the valve body 191 is closed, and the negative pressure pump 170 is started to evacuate the vacuum chamber, making the vacuum chamber negative pressure. This causes the piston 130 to move downward under atmospheric pressure, which in turn drives the cooler 150 to move downward. The cooler 150 cools the inner wall of the sampling cylinder 100, making the sampling environment at a suitable temperature. As the piston 130 moves downward, the compression spring 105 is compressed. When the piston 130 passes the sampling port 103, the sample in the sample chamber is discharged through the sampling port 103 for collection. The filter cylinder 110 filters out large particles in the sample to prevent clogging of the sampling port 103.

[0039] After sampling is completed, by opening valve body 191, high-pressure steam quickly fills the vacuum chamber and, together with compression spring 105, pushes piston 130 upward. The rapidly moving piston 130 pushes the liquid in the sampling chamber back into the container, and at the same time, the resulting impact backwashes filter cartridge 110 to prevent the filter cartridge 110 mesh from becoming clogged.

[0040] It should be noted that the specific models and specifications of the semiconductor cooling chip 152 and the negative pressure pump 170 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0041] The power supply and principle of the semiconductor cooling chip 152 and the negative pressure pump 170 are clear to those skilled in the art and will not be described in detail here.

[0042] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. A sterile sampling valve for a rice wine storage tank, characterized in that, include A sampling cylinder (100) is provided with a storage tank connection port (101) at the top of the sampling cylinder (100). A filter cylinder (110) is connected to the upper end of the storage tank connection port (101). A piston (130) is provided inside the sampling cylinder (100). A cooler (150) is fixed to the lower end of the piston (130). A compression spring (105) is provided at the bottom of the cooler (150). A negative pressure pump (170) is installed at the bottom of the sampling cylinder (100). A sampling port (103) and a steam inlet (107) are provided on the side wall of the sampling cylinder (100). A steam pipe (190) is connected to the steam inlet (107). A valve body (191) is installed on the steam pipe (190).

2. The aseptic sampling valve for a rice wine storage tank according to claim 1, characterized in that, The sampling port (103) is diagonally opposite to the steam inlet (107), and the sampling port (103) is located above the steam inlet (107). The sampling port (103) is equipped with a one-way valve (108) that allows only one-way drainage.

3. The aseptic sampling valve for a rice wine storage tank according to claim 1, characterized in that, The storage tank connection port (101) is equipped with a solenoid valve, and the upper end of the sampling cylinder (100) is fixed with a flange (109). A sealing gasket is provided between the flange (109) and the storage tank connection port (101), and the flange (109) is connected to the sampling interface of the container.

4. The aseptic sampling valve for a rice wine storage tank according to claim 1, characterized in that, Inside the sampling cylinder (100), the space formed between the storage tank connection port (101) and the piston (130) is a sampling chamber, and the space formed between the piston (130) and the negative pressure pump (170) is a vacuum chamber. The compression spring (105) is disposed in the vacuum chamber.

5. The aseptic sampling valve for a rice wine storage tank according to claim 1, characterized in that, The filter cylinder (110) has an external thread at its lower end, and the storage tank connection port (101) has an internal thread. The lower end of the filter cylinder (110) and the storage tank connection port (101) are fixed together by the internal thread and the external thread.

6. The aseptic sampling valve for a rice wine storage tank according to claim 1, characterized in that, The cooler (150) is a cylinder, and the circumferential surface of the cylinder is in contact with the inner wall of the feeding cylinder (100), which can fully absorb the excess heat of the inner wall of the feeding cylinder (100) and achieve rapid cooling of the inner wall of the feeding cylinder (100).

7. The aseptic sampling valve for a rice wine storage tank according to claim 1, characterized in that, The cooler (150) includes a cylindrical heat-conducting block (151) and a semiconductor cooling chip (152). The outer wall of the cylindrical heat-conducting block (151) is attached to the inner wall of the feeding cylinder (100). A receiving groove is provided in the cylindrical heat-conducting block (151). The cooling surface of the semiconductor cooling chip (152) is attached to the inner surface of the cylindrical heat-conducting block (151).

8. The aseptic sampling valve for a rice wine storage tank according to claim 7, characterized in that, Multiple semiconductor cooling chips (152) are provided, and the multiple semiconductor cooling chips (152) are distributed in a ring in the receiving groove. The lower port of the cylindrical heat-conducting block (151) is covered with a sealing cover (153). The sealing cover (153) is sealed and fitted to the port of the receiving groove. The upper end of the compression spring (105) abuts against the lower surface of the sealing cover (153).

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