A storage device with dehumidification function for grain storage

By linking the circulation and dehumidification components inside the grain silo, the problem of temperature and humidity around the surface of the grain silo being unable to be discharged in time is solved, achieving uniform temperature reduction and humidity control inside the grain silo, thus improving the preservation effect and safety of the grain.

CN224571869UActive Publication Date: 2026-07-31CENT GRAIN RESERVE ZHAOQING DIRECT STORAGE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CENT GRAIN RESERVE ZHAOQING DIRECT STORAGE CO LTD
Filing Date
2025-05-28
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing technology cannot effectively dissipate temperature and humidity around the surface of grain silos, leading to temperature increases at depths of 0.5 to 1.5 meters below the grain surface during storage, which affects grain quality and safety.

Method used

The system employs a linkage between circulation and dehumidification components. It extracts surface air from the grain silo through loop pipes and adsorption pipes. Combined with the control of temperature sensors, microprocessors, and turbine pumps, it achieves air circulation, cooling, and dehumidification. The system utilizes the linkage of heat exchange plates, pressurization modules, and springs to dehumidify the gas and promptly discharge condensate.

Benefits of technology

It effectively reduces the temperature around the surface of the grain warehouse, ensuring low-temperature storage of grain, improving grain quality and safety, preventing mold and sprouting, and enhancing grain storage effectiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a grain storage device with dehumidification function, comprising a storage chamber and a circulation component disposed on the lower side of the storage chamber, the circulation component being used to maintain the temperature and humidity of the grain on the surrounding surface of the storage chamber; it also includes a dehumidification component disposed on the bottom of the storage chamber exterior, the dehumidification component being used to dehumidify the gas during the circulation process; a cooling module is provided at the upper end of the storage chamber; and several temperature-sensitive sensors are provided on the inner wall surface of the storage chamber. This utility model belongs to the field of grain storage technology, specifically a grain storage device with dehumidification function.
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Description

Technical Field

[0001] This utility model belongs to the field of grain storage technology, and in particular relates to a storage device with dehumidification function for grain storage. Background Technology

[0002] With global food security receiving increasing attention, effective food storage is crucial for ensuring stable food supply and minimizing food losses. While agricultural production technologies have led to continuous advancements in grain output, the issue of quality assurance during food storage has become increasingly prominent.

[0003] Environmental factors have a decisive impact on the quality of grains during storage. Temperature is one of the key environmental factors; excessively high temperatures can lead to a series of serious problems. When the storage environment temperature is too high, grains are prone to mold and sprouting. Mold not only changes the appearance and smell of grains, reducing their edible value, but may also produce toxins harmful to humans, such as aflatoxin, seriously threatening food safety. These effects are particularly pronounced for crops with high moisture content, such as corn.

[0004] In shallow, round silos with nitrogen-filled controlled atmosphere storage, bulk grain storage inevitably results in the lower layers of the grain pile failing to effectively conduct heat to the surface layer, leading to a significantly higher surface temperature than the average grain temperature. The current solution is to install a dedicated air conditioning cooling module at the top of the silo's interior, combined with an existing external circulation system, to cool the grain pile surface and surrounding area. However, actual operational testing revealed that the temperature control module only significantly affects the temperature above the grain surface. At a depth of 0.5 to 1.5 meters below the grain surface, the cooling module's effectiveness is poor. Furthermore, under external heat radiation, the silo walls absorb heat and conduct it inwards, causing the interior walls to heat up, thus failing to effectively address the overheating of the grain layer at or below the surface. Utility Model Content

[0005] In response to the above situation, in order to overcome the shortcomings of existing technology in that the temperature and humidity around the surface of the grain silo cannot be discharged in a timely manner.

[0006] The technical solution adopted by this utility model is as follows: A storage device for grain storage with dehumidification function includes a storage body and a circulation component disposed on the lower side of the storage body. The circulation component is used to maintain the temperature and humidity of the grain on the surface of the storage body. It also includes a dehumidification component disposed on the bottom of the storage body. The dehumidification component is used to dehumidify the gas during the circulation process. A cooling module is provided at the upper end of the storage body, and several temperature-sensitive sensors are provided on the inner wall of the storage body.

[0007] Furthermore, the circulation component includes a ring tube and an adsorption tube. The ring tube is fixed to the lower part of the inner side of the chamber. The lower end of the ring tube is provided with several through fixed barriers at intervals along the central axis of the chamber. The adsorption tube is inserted into the fixed barriers. The adsorption tube is provided with several adsorption holes at intervals. The end of the ring tube near the chamber is provided with an air intake hole.

[0008] Furthermore, the dehumidification assembly includes a dehumidification chamber, a heat exchange plate, and a cover plate. The dehumidification chamber is fixed to the outside of the chamber body. The upper end of the dehumidification chamber is connected to the air intake through a conduit. A pressurization module is provided between the dehumidification chamber and the conduit. A drain outlet is provided at the lower end of the dehumidification chamber. Several heat exchange plates are fixedly connected at intervals inside the dehumidification chamber. One end of each heat exchange plate is connected to a heat exchanger through a conduit. The cover plate is connected to the inside of the drain outlet through a rotating shaft. Springs are provided on the inside of the cover plate and the drain outlet. An air inlet communicating with the inside of the chamber body is provided on one side of the dehumidification chamber.

[0009] Furthermore, a positioning barrier that matches the inner side of the fixed barrier is fixed to the upper end of the adsorption tube, and a sealing ring is provided between the positioning barrier and the fixed barrier.

[0010] Furthermore, the pressurization module includes an annular shell, which is fixed to the inner wall of the conduit between the air inlet and the air intake of the dehumidification chamber. A closed pressurization chamber is provided inside the annular shell, and an exhaust port is provided at the lower end of the pressurization chamber. One end of the pressurization chamber is connected to a turbine air pump, which is fixed to the outer wall of the chamber. The air inlet of the turbine air pump is connected to the interior of the chamber through a conduit, and the air outlet of the turbine air pump is connected to the pressurization chamber through a conduit.

[0011] Furthermore, a microprocessor is provided on the outside of the chamber, the temperature sensor is electrically connected to the microprocessor via a wire, the turbine air pump is electrically connected to the microprocessor via a wire, and the heat exchanger is electrically connected to the microprocessor via a wire.

[0012] Furthermore, the spring is sleeved on the rotating shaft, one end of the spring is fixedly connected to the inner wall of the drain outlet, and the other end of the spring is fixedly connected to the cover plate.

[0013] Furthermore, the cooling module is fixedly connected to the upper part of the chamber, and the cooling module is electrically connected to the microprocessor via wires.

[0014] The beneficial effects of this utility model after adopting the above structure are as follows:

[0015] (1) By linking the loop pipe and adsorption pipe in the circulation component with the temperature sensor, microprocessor, heat exchanger and turbine air pump, the air around the surface of the grain silo is extracted through the circulation pipe and pressed into the bottom ventilation port to form a cold circulation inside the silo. In order to ensure that the high temperature extracted from the surface directly enters the bottom of the silo, a refrigeration module is installed at the connection point of the circulation pipe outside the silo to lower the temperature and press it into the bottom of the grain pile, thereby improving the low-temperature preservation effect of the grain.

[0016] (2) By linking the dehumidification chamber, heat exchange plate and cover plate in the dehumidification assembly with the pressurization module and spring, the condensed water is discharged in time, and the dryness of the air inside the chamber is ensured. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the overall structure of this utility model;

[0020] Figure 3 This is a half-sectional schematic diagram of the overall structure of this utility model;

[0021] Figure 4 This is a partial cross-sectional view of the structure of this utility model. Figure 1 ;

[0022] Figure 5 This is a partial cross-sectional view of the structure of this utility model. Figure 2 ;

[0023] Figure 6 for Figure 3 Enlarged view of part A;

[0024] Figure 7 for Figure 4 Enlarged view of part B;

[0025] Figure 8 for Figure 5 Enlarged view of part C.

[0026] In the attached diagram: 1. Chamber body, 2. Ring pipe, 3. Adsorption pipe, 4. Fixed enclosure, 5. Positioning enclosure, 6. Adsorption hole, 7. Air intake hole, 8. Dehumidification chamber, 9. Heat exchange plate, 10. Cover plate, 11. Drain outlet, 12. Air inlet, 13. Ring shell, 14. Pressure chamber, 15. Exhaust outlet, 16. Turbine air pump. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] like Figure 1 As shown, a grain storage device with dehumidification function is disclosed. It includes a storage body 1 and a circulation component disposed on the lower inner side of the storage body 1. The circulation component is used to maintain the temperature and humidity of the grain on the surface of the storage body. It also includes a dehumidification component disposed on the bottom outer side of the storage body 1. The dehumidification component is used to dehumidify the gas during the circulation process. A cooling module is provided at the upper end of the storage body 1, and several temperature-sensitive sensors are provided on the inner wall surface of the storage body 1.

[0030] like Figure 2-3 As shown in -5-8, the circulation component includes a ring pipe 2 and an adsorption pipe 3. The ring pipe 2 is fixed to the lower part of the inner side of the chamber 1. Several through fixed barriers 4 are provided at intervals along the central axis of the chamber 1 at the lower end of the ring pipe 2. The adsorption pipe 3 is inserted into the fixed barriers 4. Several adsorption holes 6 are provided at intervals on the adsorption pipe 3. An air intake hole 7 is provided at the end of the ring pipe 2 near the chamber 1.

[0031] Among them, the ring pipe 2 and the adsorption pipe 3 are made of PVC. The upper end of the adsorption pipe 3 is fixed with a positioning barrier 5 that matches the inner side of the fixed barrier 4. A sealing ring is provided between the positioning barrier 5 and the fixed barrier 4. The temperature sensor monitors the temperature inside the silo 1. The microprocessor controls the pressurization module to draw the air at the bottom of the silo 1 into the adsorption pipe 3 through the adsorption hole 6. The air around the surface of the grain silo is drawn out through the circulation pipe and pressed into the bottom ventilation port to form a cold circulation inside the silo. In order to ensure that the high temperature drawn from the surface directly enters the bottom of the silo, a cooling module is installed at the connection point of the circulation pipe outside the silo to lower the temperature before pressing it into the bottom of the grain pile, thereby improving the low-temperature preservation effect of the grain.

[0032] like Figure 3-4As shown in -6-7, the dehumidification assembly includes a dehumidification chamber 8, a heat exchange plate 9, and a cover plate 10. The dehumidification chamber 8 is fixed to the outside of the chamber body 1. The upper end of the dehumidification chamber 8 is connected to the air intake 7 through a conduit. A pressurization module is provided between the dehumidification chamber 8 and the conduit. A drain outlet 11 is provided at the lower end of the dehumidification chamber 8. Several heat exchange plates 9 are fixedly connected to the inside of the dehumidification chamber 8 at intervals. One end of the heat exchange plate 9 is connected to the heat exchanger through a conduit. The cover plate 10 is connected to the inside of the drain outlet 11 through a rotating shaft. Springs are provided on the inside of the cover plate 10 and the drain outlet 11. An air inlet 12 communicating with the inside of the chamber body 1 is provided on one side of the dehumidification chamber 8.

[0033] The pressurization module includes a ring shell 13, which is fixed to the inner wall of the conduit between the air inlet and the air intake 7 of the dehumidification chamber 8. A closed pressurization chamber 14 is formed inside the ring shell 13, and an exhaust port 15 is formed at the lower end of the pressurization chamber 14. One end of the pressurization chamber 14 is connected to a turbine pump 16, which is fixed to the outer wall of the chamber 1. The air inlet of the turbine pump 16 is connected to the interior of the chamber 1 via a conduit, and the air outlet of the turbine pump 16 is connected to the pressurization chamber 14 via a conduit. A spring is sleeved on a rotating shaft, with one end fixedly connected to the inner wall of the drain outlet 11 and the other end fixedly connected to the cover plate 10. A microprocessor is located on the outside of the chamber 1. A temperature sensor is electrically connected to the microprocessor via a wire, as are the turbine pump 16 and the heat exchanger. The cooling module is fixed to the upper part of the chamber 1. The cooling module is electrically connected to the microprocessor through wires. The microprocessor controls the turbine air pump 16 to draw the gas in the chamber 1 into the pressurization chamber 14 according to the monitoring data of the temperature sensor. After the gas is pressurized by the pressurization chamber 14, it is discharged through the exhaust port 15. The gas at the bottom of the chamber 1 is drawn into the dehumidification chamber 8. The microprocessor controls the heat exchanger to cool the heat exchange plate 9. When the airflow passes through the heat exchange plate 9, the airflow is cooled and the water in the airflow condenses into liquid. The liquid water accumulates on the cover plate 10. When the pressure on the cover plate 10 reaches the threshold set by the spring, the cover plate 10 opens automatically and the liquid water is discharged through the drain port 11. After the liquid water is discharged, the cover plate 10 rebounds under the elastic deformation of the spring to ensure the airtightness of the dehumidification chamber 8.

[0034] 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. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A storage device with dehumidification function for grain storage, characterized by: It includes a chamber (1) and a circulation component located on the lower inner side of the chamber (1); it also includes a dehumidification component located on the bottom outer side of the chamber (1), the upper end of the chamber (1) is provided with a cooling module, and the inner wall surface of the chamber (1) is provided with several temperature-sensitive sensors; The circulation component includes a ring pipe (2) and an adsorption pipe (3). The circulation component, in conjunction with a temperature sensor, a microprocessor, a heat exchanger, and a turbine air pump (16), is used to regulate the temperature and humidity of the grain on the surface of the surrounding area inside the warehouse. The dehumidification assembly includes a dehumidification chamber (8), a heat exchange plate (9), and a cover plate (10). The dehumidification assembly, in conjunction with a pressurization module and a spring, enables the dehumidification of the gas transported by the circulation assembly.

2. The grain storage device with dehumidification function according to claim 1, characterized in that: The circulation assembly includes a ring pipe (2) and an adsorption pipe (3). The ring pipe (2) is fixed to the lower part of the inner side of the chamber (1). The lower end of the ring pipe (2) is provided with several through fixed barriers (4) at intervals along the central axis of the chamber (1). The adsorption pipe (3) is inserted into the fixed barriers (4). The adsorption pipe (3) is provided with several adsorption holes (6) at intervals. The end of the ring pipe (2) near the chamber (1) is provided with an air intake hole (7).

3. The grain storage device with dehumidification function according to claim 2, characterized in that: The upper end of the adsorption tube (3) is fixedly connected to a positioning barrier (5) that matches the inner side of the fixed barrier (4), and a sealing ring is provided between the positioning barrier (5) and the fixed barrier (4).

4. The grain storage device with dehumidification function according to claim 3, characterized in that: The dehumidification assembly includes a dehumidification chamber (8), a heat exchange plate (9), and a cover plate (10). The dehumidification chamber (8) is fixed to the outside of the chamber body (1). The upper end of the dehumidification chamber (8) is connected to the air intake (7) through a conduit. A pressurization module is provided between the dehumidification chamber (8) and the conduit. A drain outlet (11) is provided at the lower end of the dehumidification chamber (8). Several heat exchange plates (9) are fixed to the inside of the dehumidification chamber (8) at intervals. One end of the heat exchange plate (9) is connected to the heat exchanger through a conduit. The cover plate (10) is connected to the inside of the drain outlet (11) through a rotating shaft. A spring is provided on the inside of the cover plate (10) and the drain outlet (11). An air inlet (12) communicating with the inside of the chamber body (1) is provided on one side of the dehumidification chamber (8).

5. The grain storage device with dehumidification function according to claim 4, characterized in that: The pressurization module includes an annular shell (13), which is fixed to the inner wall of the conduit between the air inlet end and the air intake hole (7) of the dehumidification chamber (8). A closed pressurization chamber (14) is provided inside the annular shell (13). An exhaust port (15) is provided at the lower end of the pressurization chamber (14). One end of the pressurization chamber (14) is connected to a turbine air pump (16). The turbine air pump (16) is fixed to the outer wall of the chamber body (1). The air inlet end of the turbine air pump (16) is connected to the inside of the chamber body (1) through a conduit. The air outlet end of the turbine air pump (16) is connected to the pressurization chamber (14) through a conduit.

6. The grain storage device with dehumidification function according to claim 5, characterized in that: The spring is sleeved on the rotating shaft, one end of the spring is fixedly connected to the inner wall of the drain outlet (11), and the other end of the spring is fixedly connected to the cover plate (10).

7. The grain storage device with dehumidification function according to claim 6, characterized in that: The outer side of the chamber (1) is equipped with a microprocessor. The temperature sensor is electrically connected to the microprocessor via a wire. The turbine air pump (16) is electrically connected to the microprocessor via a wire. The heat exchanger is electrically connected to the microprocessor via a wire.

8. The grain storage device with dehumidification function according to claim 7, characterized in that: The cooling module is fixed to the upper part of the chamber (1) and is electrically connected to the microprocessor through wires.