Silage cooling tank

By using non-contact semiconductor refrigeration and nitrogen replacement technology, combined with a temperature and gas concentration monitoring system, the problems of slow cooling speed and excessive humidity in traditional silage devices have been solved, achieving rapid and uniform cooling and long-term preservation, thus improving the quality and shelf life of silage.

CN224215653UActive Publication Date: 2026-05-08TANGSHAN ACAD OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TANGSHAN ACAD OF AGRI SCI
Filing Date
2025-06-11
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Traditional silage methods are prone to excessive microbial growth in high-temperature environments, leading to feed spoilage and nutrient loss. Existing devices that use atomized water spray for cooling are prone to excessive humidity and mold growth, and the cooling speed is slow and the uniformity is poor, affecting the quality of silage.

Method used

It adopts non-contact semiconductor refrigeration combined with nitrogen replacement technology. Through the cooperation of the gas filling component and the gas exhaust component, the semiconductor refrigeration generates cold air and combines it with nitrogen replacement to form a low oxygen and low temperature environment. The temperature, gas concentration and pressure monitoring system is used for real-time control.

Benefits of technology

It achieves rapid and uniform cooling, inhibits microbial growth, significantly improves the quality and shelf life of silage, and reduces the risk of spoilage and nutrient loss.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an ensiling cooling tank, including cooling tank and bottom plate, cooling tank is installed at the top of bottom plate, the interior of cooling tank is set to be cavity structure, the exterior of cooling tank is equipped with the inflation component that is used for filling nitrogen into the interior of cooling tank, one end of inflation component extends into the interior of cooling tank, and the other end of inflation component extends into the interior of cooling tank. According to the fresh-keeping device, nitrogen replacement of the inflation assembly can quickly reduce the oxygen concentration, restrain microorganism breeding and form a synergistic fresh-keeping effect with low temperature, meanwhile, the temperature of the cooling tank can be lowered, and the temperature of the cooling tank can be lowered. According to the device, an accurate temperature, gas concentration and pressure monitoring system is adopted, the cooling assembly and the inflation assembly can be regulated and controlled in real time, rapid and uniform cooling is achieved, the fresh-keeping effect is lasting, the quality of silage is remarkably improved, the storage life of the silage is remarkably prolonged, and the nutrition loss and putrefaction risk is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural engineering technology, specifically a silage cooling trough. Background Technology

[0002] As an important feed source for ruminants, the temperature control during the storage process of silage directly affects the feed quality and shelf life. Traditional silage methods rely on natural fermentation, which can easily lead to feed spoilage and nutrient loss due to excessive microbial growth in high-temperature environments. This problem is particularly prominent in summer or high-latitude regions where temperature fluctuations are significant.

[0003] Chinese Patent No. CN218369604U discloses an alfalfa silage preservation device, comprising a water tank, a plug movably connected to one side of the upper surface of the water tank, a semiconductor cooling chip fixedly connected to the inner bottom wall of the water tank, and a connecting pipe fan fixedly connected to the middle of the upper surface of the water tank. This alfalfa silage preservation device, through the arrangement of a water tank, semiconductor cooling chip, connecting pipe, atomizing nozzles, and a fan, utilizes the semiconductor cooling chip to cool the water inside the water tank. The connecting pipe, via a water pump, delivers cold water to the interior of a distribution pipe. The distribution pipe sprays alfalfa silage inside the casing through multiple atomizing nozzles at its bottom. The fan expands the spray range of the atomizing nozzles, evenly spraying cold water onto the surface of the alfalfa silage, maintaining freshness, and simultaneously lowering the internal temperature of the casing, thereby reducing the activity of the alfalfa silage, increasing the shelf life, and extending the storage time of the alfalfa silage, thus increasing its practicality.

[0004] The aforementioned patent also has some drawbacks. Cooling by spraying water mist can easily lead to excessive humidity in the silage environment, causing mold growth. Furthermore, the cooling relies on the diffusion of water mist, which is slow and has poor uniformity. The water mist may also contaminate the silage due to water quality issues, affecting the quality of the silage. Therefore, we need to propose a silage cooling trough. Utility Model Content

[0005] The purpose of this invention is to provide a silage cooling trough to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a silage cooling tank, comprising a cooling tank and a bottom plate, wherein the cooling tank is installed on the top of the bottom plate, and the interior of the cooling tank is configured as a cavity structure;

[0007] The cooling tank is equipped with an inflation assembly for filling the interior of the cooling tank with nitrogen, one end of which extends into the interior of the cooling tank.

[0008] The cooling tank is equipped with an exhaust assembly for cooperating with the inflation assembly, one end of which extends into the interior of the cooling tank.

[0009] The cooling tank is equipped with a cooling component for cooling the tank, one end of which extends into the cavity of the cooling tank.

[0010] Preferably, the inflation assembly includes a housing, a nitrogen tank, an inflation pipe, and a gas leak detector. The housing is mounted on a base plate and located on one side of the cooling tank. A cover plate is installed on the top of the cooling tank, and the nitrogen tank is installed inside the housing.

[0011] Preferably, one end of the inflation pipe is connected to the inlet of the nitrogen tank, and the other end of the inflation pipe extends upward through the top and cover of the box and into the interior of the cooling tank. The gas leak detector is installed on the surface of the inflation pipe inside the box, and a first one-way valve is installed on the surface of the inflation pipe on the outer section of the box.

[0012] Preferably, the exhaust assembly includes an air pump and an exhaust pipe. The air pump is mounted on the top of the cover plate. One end of the exhaust pipe is connected to the air inlet of the air pump, and the other end of the exhaust pipe passes through the cover plate and extends into the interior of the cooling tank. A second one-way valve is installed on the surface of the exhaust pipe.

[0013] Preferably, the cooling component includes a semiconductor cooler, a first air outlet duct, and a fixing plate. The semiconductor cooler is installed outside the cooling tank via the fixing plate. The hot end of the semiconductor cooler is provided with heat dissipation fins and a fan. The cold end of the semiconductor cooler is connected to one end of the first air outlet duct. A valve is installed on the surface of the first air outlet duct. The hot end of the semiconductor cooler is connected to a heat dissipation pipe.

[0014] Preferably, the cooling component further includes a fan and a second air duct. The air inlet of the fan is connected to the end of the first air outlet duct away from the cold end of the semiconductor cooler, the air outlet of the fan is connected to the end of the second air duct, and the end of the second air duct away from the fan is connected to the cavity of the cooling tank.

[0015] Preferably, a sealing ring is installed at the top of the cooling tank cavity, a gas detector and a temperature sensor are installed at the bottom of the cover plate, a pressure sensor is installed at the top of the cover plate, and a controller is installed on one side of the cooling tank. The controller is electrically connected to the gas detector, the temperature sensor and the pressure sensor respectively.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model, through the cooperation of the inflation component, the exhaust component and the cooling component, and the non-contact semiconductor refrigeration combined with nitrogen replacement technology, effectively overcomes the defects of traditional silage devices. The semiconductor refrigeration unit transfers the cooling energy to the material through the cavity, avoiding the risk of increased humidity and mold caused by direct contact with water mist.

[0018] 2. This utility model rapidly reduces oxygen concentration through nitrogen replacement of the aeration component, inhibiting microbial growth and creating a synergistic preservation effect with low temperature. At the same time, the device adopts a precise temperature, gas concentration and pressure monitoring system, which can adjust the cooling component and the aeration component in real time to achieve rapid and uniform cooling and long-lasting preservation effect, significantly improving the quality and shelf life of silage and reducing nutrient loss and the risk of spoilage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the cooling tank of this utility model;

[0021] Figure 3 This is a schematic diagram of the inflatable structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the cooling component structure of this utility model.

[0023] In the diagram: 1. Cooling tank; 2. Base plate; 3. Box body; 4. Nitrogen tank; 5. Inflation pipe; 6. Gas leak detector; 7. First one-way valve; 8. Cover plate; 9. Air pump; 10. Exhaust pipe; 11. Second one-way valve; 12. Semiconductor cooler; 13. First air outlet pipe; 14. Fixing plate; 15. Heat dissipation fins; 16. Fan; 17. Valve; 18. Heat dissipation pipe; 19. Blower; 20. Second air blowing pipe; 21. Sealing ring; 22. Gas detector; 23. Temperature sensor; 24. Pressure sensor; 25. Controller. 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] Please see Figures 1-4This utility model provides a technical solution: a silage cooling tank, including a cooling tank 1 and a bottom plate 2. The cooling tank 1 is installed on top of the bottom plate 2. The interior of the cooling tank 1 is set as a cavity structure. The cooling tank 1 is used to store silage materials. Its cavity structure provides storage space for the materials and creates an environment for nitrogen filling and cooling. The tank body of the cooling tank 1 is made of 304 stainless steel, which has excellent thermal and cold conductivity. The inner wall of the cavity of the cooling tank 1 is anodized to form a honeycomb-like micron-level rough texture. The pit diameter is 50-100μm and the depth is 30-50μm, which are distributed in an equilateral triangular array (density 200-300 pits / mm²). The surface area is increased by 2.3 times compared with a smooth surface. When cold air flows through, it triggers a turbulence effect, which destroys the laminar boundary layer. Combined with the directional circulation airflow design inside the tank, the cooling speed of silage materials can be increased by 40%-60%. Under the same cooling capacity, the heat exchange efficiency is increased by more than 50% compared with the traditional smooth inner wall. The bottom plate 2 supports the cooling tank 1 to ensure the overall stability of the equipment.

[0026] The cooling tank 1 is equipped with an inflation assembly for filling the interior of the cooling tank 1 with nitrogen. One end of the inflation assembly extends into the interior of the cooling tank 1. The inflation assembly includes a housing 3, a nitrogen tank 4, an inflation pipe 5, and a gas leak detector 6. The nitrogen tank 4 stores nitrogen and provides a gas source for filling the cooling tank 1. The housing 3 is mounted on the base plate 2 and located on one side of the cooling tank 1. A cover plate 8 is mounted on the top of the cooling tank 1. The nitrogen tank 4 is installed inside the housing 3 and stores nitrogen and provides a gas source for filling the cooling tank 1.

[0027] One end of the inflation pipe 5 is connected to the inlet of the nitrogen tank 4, and the other end of the inflation pipe 5 extends upward through the top of the box 3 and the cover plate 8 and extends into the interior of the cooling tank 1. The inflation pipe 5 connects the nitrogen tank 4 and the cooling tank 1, and delivers nitrogen into the interior of the cooling tank 1. The gas leak detector 6 is installed on the surface of the inflation pipe 5 inside the box 3. The surface of the inflation pipe 5 on the outer section of the box 3 is equipped with a first one-way valve 7. The gas leak detector 6 detects whether there is nitrogen leakage on the surface of the inflation pipe 5 to ensure safe use. The first one-way valve 7 prevents the gas in the inflation pipe 5 from flowing back and ensures that the nitrogen flows in one direction.

[0028] The cooling tank 1 is equipped with an exhaust assembly for cooperating with the inflation assembly. One end of the exhaust assembly extends into the interior of the cooling tank 1. The exhaust assembly includes an air pump 9 and an exhaust pipe 10. The air pump 9 is installed on the top of the cover plate 8. The air pump 9 provides power to draw gas from the cooling tank 1 and discharge it through the exhaust pipe 10. One end of the exhaust pipe 10 is connected to the air inlet of the air pump 9. The other end of the exhaust pipe 10 passes through the cover plate 8 and extends into the interior of the cooling tank 1. The exhaust pipe 10 delivers the gas in the cooling tank 1 to the outside. A second one-way valve 11 is installed on the surface of the exhaust pipe 10. The second one-way valve 11 prevents external gas from flowing back into the cooling tank 1.

[0029] A cooling assembly for cooling the cooling tank 1 is installed on the outside of the cooling tank 1. One end of the cooling assembly extends into the cavity of the cooling tank 1. The cooling assembly includes a semiconductor cooler 12, a first air outlet duct 13, and a fixing plate 14. The semiconductor cooler 12 is installed on the outside of the cooling tank 1 through the fixing plate 14. The semiconductor cooler 12 generates cooling capacity through thermoelectric effect. The fixing plate 14 fixes the semiconductor cooler 12 to ensure its stable installation position. The hot end of the semiconductor cooler 12 is provided with heat dissipation fins 15 and a fan 16. The cold end of the semiconductor cooler 12 is connected to one end of the first air outlet duct 13. A valve 17 is installed on the surface of the first air outlet duct 13. The first air outlet duct 13 delivers the cold air generated by the cold end of the semiconductor cooler 12 to the cooling tank 1. The valve 17 controls the opening and closing and flow rate of the cold air in the first air outlet duct 13. The hot end of the semiconductor cooler 12 is connected to a heat dissipation pipe 18, which conducts the heat from the hot end of the semiconductor cooler 12 to the external environment.

[0030] The cooling assembly also includes a fan 19 and a second air duct 20. The air inlet of the fan 19 is connected to the end of the first air outlet duct 13 away from the cold end of the semiconductor cooler 12, and the air outlet of the fan 19 is connected to the end of the second air duct 20. The fan 19 pressurizes the cold air output from the first air outlet duct 13 to enhance its delivery capacity. The end of the second air duct 20 away from the fan 19 is connected to the cavity of the cooling tank 1. The second air duct 20 sends the pressurized cold air into the cavity of the cooling tank 1.

[0031] A sealing ring 21 is installed on the top of the cavity of the cooling tank 1. The sealing ring 21 enhances the sealing between the cavity and the interior of the cooling tank 1, preventing leakage of cold air mixed with nitrogen. A gas detector 22 and a temperature sensor 23 are installed on the bottom of the cover plate 8. The cover plate 8 seals the top of the cooling tank 1, providing support for the installation of components such as the air pump 9, and also sealing the nitrogen. The gas detector 22 detects the gas composition and concentration inside the cooling tank 1, and the temperature sensor 23 monitors the temperature change inside the cooling tank 1. A pressure sensor 24 is installed on the top of the cover plate 8, which monitors the pressure inside the cooling tank 1. A controller 25 is installed on one side of the cooling tank 1, and the controller 25 is electrically connected to the gas detector 22, the temperature sensor 23, and the pressure sensor 24 respectively.

[0032] Controller 25 is electrically connected to gas detector 22, temperature sensor 23, and pressure sensor 24 via wires, receiving real-time data on gas concentration, temperature, and pressure inside cooling tank 1. When gas detector 22 detects that the oxygen concentration is higher than the set value, controller 25 triggers the solenoid valve of the inflation assembly to open, allowing nitrogen from nitrogen tank 4 to enter cooling tank 1 through inflation pipe 5 and first one-way valve 7. Simultaneously, gas pump 9 starts and discharges gas from the tank through exhaust pipe 10 and second one-way valve 11. When temperature sensor 23 detects that the temperature exceeds the threshold, controller 25... The controller 25 controls the start of the semiconductor cooler 12. The cold air from the cold end is sent into the cavity of the cooling tank 1 through the first air outlet duct 13, valve 17, fan 19, and second air blowing duct 20. The heat from the hot end is discharged through the heat dissipation fins 15, fan 16, and heat dissipation pipe 18. When the pressure sensor 24 detects an abnormal pressure inside the tank, the controller 25 adjusts the opening of the first one-way valve 7 and the second one-way valve 11 or starts and stops the air pump 9 to maintain the pressure inside the cooling tank 1. All components realize data interaction and linkage control through the controller 25 to create a low-oxygen and low-temperature environment.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A silage cooling tank, comprising a cooling tank (1) and a bottom plate (2), characterized in that: The cooling tank (1) is installed on the top of the base plate (2), and the interior of the cooling tank (1) is set as a cavity structure; The cooling tank (1) is equipped with an inflation assembly for filling the interior of the cooling tank (1) with nitrogen, one end of which extends into the interior of the cooling tank (1). The cooling tank (1) is equipped with an exhaust assembly for cooperating with the inflation assembly, one end of which extends into the interior of the cooling tank (1). The cooling tank (1) is equipped with a cooling component for cooling the tank (1) on its exterior, and one end of the cooling component extends into the cavity of the cooling tank (1).

2. The silage cooling trough according to claim 1, characterized in that: The inflation assembly includes a housing (3), a nitrogen tank (4), an inflation pipe (5), and a gas leak detector (6). The housing (3) is mounted on a base plate (2) and located on one side of the cooling tank (1). The top of the cooling tank (1) is covered with a cover plate (8), and the nitrogen tank (4) is installed inside the housing (3).

3. A silage cooling trough according to claim 2, characterized in that: One end of the inflation pipe (5) is connected to the inlet of the nitrogen tank (4), and the other end of the inflation pipe (5) extends upward through the top of the box (3) and the cover plate (8) and extends into the interior of the cooling tank (1). The gas leak detector (6) is installed on the surface of the inflation pipe (5) inside the box (3), and a first one-way valve (7) is installed on the surface of the inflation pipe (5) on the outer section of the box (3).

4. A silage cooling trough according to claim 3, characterized in that: The exhaust assembly includes an air pump (9) and an exhaust pipe (10). The air pump (9) is installed on the top of the cover plate (8). One end of the exhaust pipe (10) is connected to the air inlet of the air pump (9). The other end of the exhaust pipe (10) passes through the cover plate (8) and extends into the interior of the cooling tank (1). A second one-way valve (11) is installed on the surface of the exhaust pipe (10).

5. A silage cooling trough according to claim 4, characterized in that: The cooling assembly includes a semiconductor cooler (12), a first air outlet duct (13), and a fixing plate (14). The semiconductor cooler (12) is installed on the outside of the cooling tank (1) via the fixing plate (14). The hot end of the semiconductor cooler (12) is provided with heat dissipation fins (15) and a fan (16). The cold end of the semiconductor cooler (12) is connected to one end of the first air outlet duct (13). A valve (17) is installed on the surface of the first air outlet duct (13). The hot end of the semiconductor cooler (12) is connected to a heat dissipation pipe (18).

6. A silage cooling trough according to claim 5, characterized in that: The cooling assembly also includes a fan (19) and a second air duct (20). The air inlet of the fan (19) is connected to the end of the first air outlet duct (13) away from the cold end of the semiconductor cooler (12). The air outlet of the fan (19) is connected to the end of the second air duct (20). The end of the second air duct (20) away from the fan (19) is connected to the cavity of the cooling tank (1).

7. A silage cooling trough according to claim 2, characterized in that: A sealing ring (21) is installed on the top of the cavity of the cooling tank (1), a gas detector (22) and a temperature sensor (23) are installed on the bottom of the cover plate (8), a pressure sensor (24) is installed on the top of the cover plate (8), and a controller (25) is installed on one side of the cooling tank (1). The controller (25) is electrically connected to the gas detector (22), the temperature sensor (23) and the pressure sensor (24) respectively.

Citation Information

Patent Citations

  • Alfalfa silage storage device

    CN218369604U