A grain storage temperature control dehumidification device

CN224875516UActive Publication Date: 2026-10-23CENT GRAIN RESERVE LISHUI DIRECT WAREHOUSE CO LTD
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Patent Information

Application Number
CN202522351161.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-05
Publication Date
2026-10-23
Estimated Expiration
2035-11-05

AI Technical Summary

Technical Problem

[0002]粮食安全是关系国计民生的战略性问题,而科学的仓储是保障粮食产后数量和质量安全的关键环节;在粮食储存过程中,环境温湿度是影响粮食品质、抑制虫霉滋生、延缓陈化的核心因素;水分含量过高或温度不适,极易导致粮食呼吸作用加剧、发热霉变、滋生害虫和微生物,造成巨大的经济损失和食品安全隐患

Benefits of technology

[0013]1).通过网格状主管、竖管、通孔、纱网罩能够对粮食各个部分进行抽风降温;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a grain storage temperature control dehumidification device, including grid main pipe, a group of vertical pipes are fixed on the grid main pipe, staggered through -hole is all opened on each vertical pipe, each vertical pipe all has the gauze cover of sleeve joint, the grid main pipe is installed with the air draught device, the top of vertical pipe is equipped with temperature sensor and humidity transducer, and the side end of temperature sensor is equipped with singlechip controller, and the singlechip controller is installed with the control screen, and the side end of air draught device is provided with dehumidifier, and the singlechip controller is connected with control screen, air draught device, dehumidifier, temperature sensor, humidity transducer circuit together. The utility model discloses can control the temperature dehumidification in the grain storage, and the grain storage time is long, and the storage cost is low, and it is worth using widely.
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Description

Technical Field

[0001] This utility model relates to a device, and more particularly to a temperature control and dehumidification device for grain storage. Background Technology

[0002] Food security is a strategic issue concerning the national economy and people's livelihood, and scientific storage is a key link in ensuring the quantity and quality of grain after harvest. During the grain storage process, environmental temperature and humidity are the core factors affecting grain quality, inhibiting the growth of insects and mold, and delaying aging. Excessive moisture content or unsuitable temperature can easily lead to increased respiration of grain, heating and mold growth, and the breeding of pests and microorganisms, causing huge economic losses and food safety risks.

[0003] Currently, grain storage typically uses high-powered exhaust fans for temperature control. This method is poorly managed, as the fans are not turned on or off according to the actual conditions of the grain storage, resulting in a huge waste of energy. Moreover, in humid environments, high-powered exhaust fans will draw humid air into the grain storage, causing excessive humidity in the grain, which affects the shelf life of the grain and is detrimental to its storage.

[0004] Therefore, there is an urgent need in the market for a device that can automatically control the temperature and dehumidify based on the temperature and humidity of the grain storage silo. Utility Model Content

[0005] This invention aims to overcome the shortcomings of the prior art by providing a grain storage temperature and humidity control device that can automatically control temperature and dehumidify, thus meeting the needs of long shelf life and low storage cost for grain.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: This grain storage temperature control and dehumidification device includes a grid-shaped main pipe, a set of vertical pipes fixed on the grid-shaped main pipe, each vertical pipe having vertically staggered through holes, each vertical pipe being fitted with a mesh cover, an exhaust device installed on the side end of the grid-shaped main pipe, a temperature sensor and a humidity sensor installed above the vertical pipes, a microcontroller controller installed on the side end of the temperature sensor, an operating screen installed on the microcontroller controller, an air inlet pipe installed on the side end of the exhaust device, a dehumidifier installed on the air inlet pipe, and the microcontroller controller being connected together with the operating screen, the exhaust device, the dehumidifier, the temperature sensor, and the humidity sensor. The mesh main pipe, vertical pipe, through holes, and mesh cover here function to exhaust ventilation, control temperature, and dehumidify various parts of the grain. Due to their proximity to the grain, the temperature control and dehumidification effects are better. The temperature sensor and exhaust device here function to monitor and operate the temperature inside the grain storage silo. The humidity sensor and dehumidifier here function to regulate and control the humidity inside the grain storage silo. The temperature sensor here is a commercially available product, and products from companies such as Shanghai Jingzhou Electronic Technology Co., Ltd., Suzhou Dulai Electronics Co., Ltd., and Shenzhen Jieyingte Sensor Co., Ltd. can be selected. The humidity sensor here is a commercially available product, and products from companies such as Shenzhen Temperature and Humidity Sensor Technology Co., Ltd., Kunlun Coast Technology Group, and Shenzhen Haodu Technology Co., Ltd. can be selected. The microcontroller here is... The microcontroller controller here is a commercially available product; options include those from Freescale, Renesas Electronics, Infineon, Toshiba, etc. The dehumidifier here is also a commercially available product; options include those from Shanghai Jinjiale Air Technology Co., Ltd., Sichuan Taidu Dehumidifier, Matsui Electric Co., Ltd., etc. The control panel here allows for real-time monitoring of temperature and humidity changes within the grain storage silo, facilitating operation by management personnel and enabling easy modification and adjustment of corresponding temperature and humidity control parameters to achieve optimal grain storage results.

[0007] Further improvements were made to the exhaust device, which includes a pipe body containing a mounting cylinder. Inside the mounting cylinder are a pair of symmetrically arranged motors, each equipped with fan blades. A set of vibration-damping springs is installed between the mounting cylinder and the inner wall of the pipe body. The function of the pipe body, mounting cylinder, motors, and fan blades is to provide a powerful exhaust effect by driving the fan blades through the opposing motors. The vibration-damping springs reduce the vibration of the mounting cylinder during high-speed operation of the motors, thereby reducing noise and making the exhaust device operate more quietly and efficiently.

[0008] Further improvements include a pair of opposing air outlets at the outlet of the main mesh pipe, with two opposing U-shaped branch pipes connecting them. Each branch pipe has an exhaust device installed at its two interfaces. A pair of symmetrically arranged blocking rings are installed at the connection holes between the branch pipes and the air outlet pipe cavities. A rotating shaft is rotatably connected to the middle of the connection area between the branch pipes and the air outlet pipe. A sealing valve plate that mates with the two blocking rings is fixed to each of the two rotating shafts. Vertical plates are fixed to each of the two air outlet pipes, and drive motors are fixed to the sides of each of the two vertical plates. A first bevel gear is fixed to the rotating shaft of each of the two drive motors. Air outlet pipes extend from the top of each of the two rotating shafts, and a second bevel gear, meshing with the two first bevel gears, is fixed to the top of each of the two rotating shafts. Each drive motor is connected to a single-chip microcomputer controller. The functions of the exhaust pipe, two branch pipes, two exhaust devices, blocking ring, rotating shaft, sealing gate, vertical plate, drive motor, first bevel gear, and second bevel gear are to shut off the exhaust device on the other side after one side has been running for a long time. This can be achieved by controlling the operation of the exhaust devices on both sides through the sealing valve plate, thereby reducing the operating burden of a single exhaust device and preventing the motor on the exhaust device from burning out due to prolonged operation.

[0009] To further improve the sealing, a rubber layer is provided on the outer contour surface of both sealing valve plates. The purpose of this rubber layer is to improve the sealing performance of the sealing valve plates and enhance the air leakage prevention effect.

[0010] Further improvements include the addition of a cover on the outside of the exhaust device to enclose the air outlet pipe, exhaust device, and branch pipes. The purpose of this cover is to prevent dust from adhering to the air outlet pipe, exhaust device, and branch pipes, thereby ensuring stable operation of the air outlet pipe, exhaust device, and branch pipes, and making the overall structure more harmonious and aesthetically pleasing.

[0011] Further improvements include the addition of dust covers on both vertical plates, which enclose the first and second bevel gears. The purpose of these dust covers is to protect and isolate the first and second bevel gears from external contact, preventing debris from touching them and ensuring their stable and continuous operation over extended periods.

[0012] The beneficial effects of this utility model are:

[0013] 1) The grid-like main pipe, vertical pipe, through holes, and mesh cover can be used to exhaust and cool various parts of the grain;

[0014] 2) Temperature monitoring and operation can be performed inside the storage room through temperature sensors and ventilation devices;

[0015] 3) The humidity in the storage room can be regulated and controlled through humidity sensors and dehumidifiers;

[0016] 4) Through the air outlet pipe, two branch pipes, two exhaust devices, a blocking ring, a rotating shaft, a sealing gate, a vertical plate, a drive motor, a first bevel gear, and a second bevel gear, the exhaust device on one side can be shut off after running for a long time. Thus, the operation of the exhaust devices on both sides can be controlled by the sealing valve plate, thereby reducing the operating load of a single exhaust device and preventing the motor on the exhaust device from burning out due to prolonged operation of a single exhaust device.

[0017] 5) The rubber layer improves the sealing performance of the valve plate, enhances air leakage prevention, and improves the temperature control effect of single-sided exhaust. Attached Figure Description

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

[0019] Figure 2 This is a top view of the grid-shaped main pipe area in this utility model;

[0020] Figure 3 This is a front view of the vertical tube in this utility model;

[0021] Figure 4 This is a cross-sectional view of the housing and exhaust device area in this utility model;

[0022] Figure 5 for Figure 4 A magnified view of a portion of region A;

[0023] Figure 6 This is a top view of the ventilation device area in this utility model;

[0024] Figure 7 for Figure 6 BB cross-section.

[0025] Explanation of reference numerals in the attached drawings: 1. Mesh main pipe, 1-1. Vertical pipe, 1-1a. Through hole, 2. Mesh cover, 3. Exhaust device, 3-1. Outer shell, 3-2. Mounting cylinder, 3-3. Motor, 3-4. Fan blade, 3-5. Vibration damping spring, 4. Temperature sensor, 5. Humidity sensor, 6. Microcontroller, 7. Control panel, 8. Dehumidifier, 9. Branch pipe, 10. Air outlet pipe, 11. Blocking ring, 12. Rotating shaft, 12-1. Second bevel gear, 13. Sealing valve plate, 13-1. Rubber layer, 14. Vertical plate, 15. Drive motor, 15-1. First bevel gear, 16. Cover, 17. Grain storage bin, 17-1. Grain, 18. Dustproof shell, 19. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] Referring to the attached diagram; this grain storage temperature control and dehumidification device includes a mesh-shaped main pipe 1, on which a set of vertical pipes 1-1 are fixed. Each vertical pipe 1-1 has vertically staggered through holes 1-1a. Each vertical pipe 1-1 is fitted with a mesh cover 2. An exhaust device 3 is installed on the side end of the mesh-shaped main pipe 1. A temperature sensor 4 and a humidity sensor 5 are installed above the vertical pipes 1-1. A microcontroller 6 is installed on the side end of the temperature sensor 4. A control panel 7 is installed on the microcontroller 6. An air inlet pipe 17-1 is installed on the side end of the exhaust device 3. A dehumidifier 8 is installed on the air inlet pipe 17-1. The microcontroller 6 is connected to the control panel 7, the exhaust device 3, the dehumidifier 8, the temperature sensor 4, and the humidity sensor 5 by wiring.

[0028] The exhaust device 3 includes a pipe body 3-1, inside which is a mounting cylinder 3-2. A pair of symmetrically arranged motors 3-3 are fixed inside the mounting cylinder 3-2. Each of the two motors 3-3 is equipped with a fan blade 3-4. A set of damping springs 3-5 are installed between the mounting cylinder 3-2 and the inner wall of the pipe body 3-1.

[0029] A pair of opposing air outlet pipes 10 are provided at the air outlet of the mesh-like main pipe 1. Two opposing U-shaped branch pipes 9 are connected between the two air outlet pipes 10. A ventilation device 3 is installed at both ends of the branch pipes 9. A pair of symmetrically arranged blocking rings 11 are provided at the connecting holes of the branch pipes 9 and the air outlet pipes 10. A rotating shaft 12 is rotatably connected at the middle of the connection area between the two branch pipes 9 and the air outlet pipes 10. A sealing valve plate 13 that cooperates with the two blocking rings 11 is fixed on the two rotating shafts 12. A vertical plate 14 is fixed on the two air outlet pipes 10. A drive motor 15 is fixed on the side end of the two vertical plates 14. A first bevel gear 15-1 is fixed on the rotating shaft of the two drive motors 15. An air outlet pipe 10 extends from the top end of the two rotating shafts 12. A second bevel gear 12-1 that meshes with the two first bevel gears 15-1 is fixed to the top end of the two rotating shafts 12 respectively. Each drive motor 15 is connected to the single-chip microcomputer controller 6.

[0030] Both sealing valve plates 13 have a rubber layer 13-1 on their outer contour surfaces.

[0031] The outside of the exhaust device 3 is provided with a cover 16 for covering the exhaust pipe 10, the exhaust device 3, and the branch pipe 9.

[0032] Dustproof shells 19 covering the first bevel gear 15-1 and the second bevel gear 12-1 are fixed on both vertical plates 14.

[0033] The working principle of this utility model is as follows: When the temperature sensor 4 detects that the temperature inside the grain storage bin 17 is too high, it transmits the data to the microcontroller 6. The microcontroller 6 controls the operation of the dual motors 3-3 in the exhaust device 3 on one side. This causes the fan blades 3-4 to create negative pressure in the mesh main pipe 1, thereby drawing in heat from the grains 18 through the through holes 1-1a (due to the obstruction of the mesh cover 2, the grains 18 will not fall into the through holes 1-1a), thus reducing the temperature of the grains 18. The heat is then discharged through the exhaust pipe 10. The temperature inside the grain storage bin 17 is monitored and controlled in real time by the temperature sensor 4. When the temperature inside the grain storage bin 17 reaches a reasonable range, the microcontroller 6 can control the motors 3-3 to stop running, reducing energy consumption. When the humidity inside the grain storage bin 17 is too high, the dehumidifier 8 located on the air inlet pipe 17-1 will also dehumidify the air drawn in. The air humidity inside the grain storage silo 17 is low, and the air inside the grain storage silo 17 is ventilated to reduce the air humidity inside the grain storage silo 17. Through real-time monitoring by the humidity sensor 5, the dehumidifier 8 can be effectively activated in real time to control the humidity changes inside the grain storage silo 17. When the motor 3-3 in the exhaust device 3 on one side has been running for a long time, the single-chip microcomputer controller 6 can control the motor 3-3 on one side to stop running and drive the drive motors 15 on both sides to run synchronously, thereby driving the rotating shafts 12 on both sides to rotate, thereby driving the sealing valve plates 13 at the rotating shafts 12 on both sides to rotate, and cooperating with the blocking ring 11 on the other side to change the air duct. At this time, the two motors 3-3 in the exhaust device 3 on the other side are started again, so that efficient exhaust temperature control and dehumidification operations can continue. The two exhaust devices 3 run alternately, which can increase the service life of the motors 3-3. Long-term use requires no maintenance, reducing costs. This utility model can automatically control temperature and dehumidify, and is worth promoting and applying.

[0034] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A grain storage temperature control and dehumidification device, comprising a mesh-like main pipe (1), characterized in that: A set of vertical pipes (1-1) are fixed on the mesh-shaped main pipe (1). Each vertical pipe (1-1) has vertically staggered through holes (1-1a). Each vertical pipe (1-1) is fitted with a mesh cover (2). An exhaust device (3) is installed on the side end of the mesh-shaped main pipe (1). A temperature sensor (4) and a humidity sensor (5) are provided above the vertical pipe (1-1). A microcontroller controller (6) is provided on the side end of the temperature sensor (4). A control panel (7) is installed on the microcontroller controller (6). An air inlet pipe (17-1) is provided on the side end of the exhaust device (3). A dehumidifier (8) is provided on the air inlet pipe (17-1). The microcontroller controller (6) is connected to the control panel (7), the exhaust device (3), the dehumidifier (8), the temperature sensor (4), and the humidity sensor (5) by wiring.

2. The grain storage temperature control and dehumidification device according to claim 1, characterized in that: The exhaust device (3) includes a pipe body (3-1), and a mounting cylinder (3-2) is provided inside the pipe body (3-1). A pair of symmetrically arranged motors (3-3) are fixed inside the mounting cylinder (3-2). Fan blades (3-4) are installed on both motors (3-3). A set of damping springs (3-5) is installed between the mounting cylinder (3-2) and the inner wall of the pipe body (3-1).

3. The grain storage temperature control and dehumidification device according to claim 2, characterized in that: The mesh-like main pipe (1) has a pair of oppositely arranged air outlet pipes (10) at its air outlet. Two oppositely arranged U-shaped branch pipes (9) connect the two air outlet pipes (10). A ventilation device (3) is installed at each of the two interfaces of the branch pipes (9). A pair of symmetrically arranged blocking rings (11) are provided at the connecting holes between the branch pipes (9) and the air outlet pipes (10). A rotating shaft (12) is rotatably connected to the middle of the connection area between the two branch pipes (9) and the air outlet pipes (10). Each of the two air outlet pipes (10) is fixed with a sealing valve plate (13) that cooperates with the two blocking rings (11). Each of the two air outlet pipes (10) is fixed with a vertical plate (14). Each of the two vertical plates (14) is fixed with a drive motor (15). Each of the two drive motors (15) is fixed with a first bevel gear (15-1). Each of the two shafts (12) extends an air outlet pipe (10) from its top end. Each of the two shafts (12) is fixed with a second bevel gear (12-1) that meshes with the two first bevel gears (15-1).

4. The grain storage temperature control and dehumidification device according to claim 3, characterized in that: Its characteristics are: Both of the sealing valve plates (13) have a rubber layer (13-1) on their outer contour surfaces.

5. A grain storage temperature control and dehumidification device according to claim 3, characterized in that: The outside of the exhaust device (3) is provided with a cover (16) for covering the exhaust pipe (10), the exhaust device (3), and the branch pipe (9).