Humidity adjusting device for grain storage

Abstract

This utility model relates to the technical field of humidity control devices and discloses a humidity control device for grain storage, including a housing and a multi-way flexible hose. An air guide box, a humidifier, and a hot air blower are respectively installed on the housing. The humidifier and hot air blower are both connected to the multi-way flexible hose. A vibration guiding system is installed on the housing, and a reciprocating frame capable of vertical reciprocating motion is driven to the vibration guiding system. A winding system is installed on the reciprocating frame, and an electrically rotatable annular cotton strip is wound on the winding system. Two sets of nozzle assemblies are installed on the air guide box, corresponding to the inner side of the annular cotton strip. In this utility model, the nozzle assemblies periodically oscillate within the air guide box as the reciprocating frame moves, forming a fan-shaped diffused airflow with the moisture / hot air delivered by the multi-way flexible hose, covering the entire inner width of the annular cotton strip. Combined with the double-layer airflow channel design of the air guide box, the air undergoes temperature and humidity regulation twice, once inside and once outside the annular cotton strip, effectively improving the uniformity of the airflow.

Description

Technical Field

[0001] This utility model relates to the technical field of humidity control devices, and more specifically, to a humidity control device for grain storage. Background Technology

[0002] Humidity and temperature are key factors for the safety of grain storage. The safety of grain storage is related not only to the moisture content of the grain but also to the relative humidity of the air in the storage environment. In the prior art, patent document CN212393284U discloses a humidity control device for grain storage, including a main body, a wet film body, an air supply unit, and a water supply unit. The main body has a closed cavity structure, with a wet film body installed on the wall of the main body. The air supply unit is installed inside the main body, and an air outlet is also provided on the wall of the main body. The air supply unit draws outside air into the main body through the wet film body and then delivers it out through the air outlet. The water supply unit is located inside the main body and replenishes water to the wet film body. The above device effectively humidifies the air in the storage room, achieving ventilation, cooling, and moisture retention, and balancing the moisture content of the grain layer. However, the above device has the following technical problems in use:

[0003] Traditional devices use a single heating or humidifying element to control temperature and humidity. It is difficult to improve the uniformity of airflow humidity and heat and eliminate blind spots during airflow heating and humidification by setting up a double-layer annular cotton belt 7. Existing technologies rely on manual or simple feedback control, which cannot respond to environmental changes in real time, resulting in lag in humidity regulation and difficulty in maintaining a constant threshold range.

[0004] Based on this, the present invention provides a humidity control device for grain storage to solve the technical problems mentioned in the background art. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, this utility model provides a humidity regulating device for grain storage. In this utility model, the nozzle assembly swings periodically in the air guide box with the reciprocating frame movement, and forms a fan-shaped diffused airflow with the moisture / hot air delivered by the multi-way hose, covering the entire inner side of the annular cotton belt. Combined with the double-layer airflow channel design of the air guide box, the air undergoes temperature and humidity regulation twice through the inner and outer sides of the annular cotton belt, effectively improving the uniformity of airflow.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a humidity regulating device for grain storage, comprising a housing and a multi-port hose, wherein an air guide box, a humidifier, and a hot air blower are respectively installed on the housing, and the humidifier and the hot air blower are both connected to the multi-port hose; a vibration guiding system is installed on the housing, and a reciprocating frame capable of reciprocating up and down is drivenly connected to the vibration guiding system; a winding system is installed on the reciprocating frame, and an electrically rotatable annular cotton strip is wound on the winding system; two sets of spray pipe assemblies are installed on the air guide box at positions corresponding to the inner side of the annular cotton strip.

[0007] The nozzle assembly includes a transmission gear plate mounted on a reciprocating frame and a set of nozzles rotatably connected to an air guide box. Each nozzle is equipped with a swing gear that meshes with the transmission gear plate. The nozzles are adapted to and connected to a multi-port hose.

[0008] The reciprocating frame is equipped with an electric heating plate for electrically heating the annular cotton belt, and the bottom of the air guide box is equipped with a backflushing system for backflushing the annular cotton belt to remove dirt and dehumidify.

[0009] A temperature and humidity sensor is installed at both ends of the housing and in the middle of the air guide box.

[0010] As a preferred technical solution of this utility model, the two ends of the housing are respectively provided with an air inlet and an air outlet, a microcontroller is installed on the end face of the housing, the data terminal of the temperature and humidity sensor is connected to the microcontroller, and the air guide box is a hollow structure with openings at both ends.

[0011] As a preferred technical solution of this utility model, the vibration guiding system includes a servo motor mounted on the housing, two half-tooth gears mounted on the output shaft of the servo motor, and vibration guide plates mounted on the reciprocating frame at positions corresponding to the two half-tooth gears. The two half-tooth gears are respectively connected to the two vibration guide plates for transmission. A reset spring limited by the air guide box is mounted on the bottom surface of the reciprocating frame.

[0012] As a preferred embodiment of the present invention, the winding system includes four guide rollers rotatably connected to the reciprocating frame, all four guide rollers being driven by an annular cotton belt, and a winding motor being mounted on the side of the reciprocating frame, with the output shaft end of the winding motor being fixedly connected to one of the guide rollers.

[0013] As a preferred embodiment of this utility model, the backflushing system includes a backflushing box installed at the bottom of the air guide box. The inner cavity of the backflushing box is connected to a multi-way flexible hose. A set of backflushing holes facing the annular cotton strip are evenly distributed on the bottom surface of the backflushing box. The backflushing box and the heating plate are both located inside the annular cotton strip. A sludge collection tray with an open top is slidably installed on the backflushing box at a position corresponding to the bottom of the annular cotton strip. Two squeezing rollers are rotatably installed on the reciprocating frame at a position corresponding to the position between the annular cotton strip and the sludge collection tray.

[0014] In a preferred embodiment of this invention, a solenoid valve is installed at the connection points between the humidifier, hot air blower, backwash box, and multi-way hose; and a flow valve is installed at the connection points between each set of spray pipes and the multi-way hose.

[0015] As a preferred technical solution of this utility model, the microcontroller controls the rotation speed and direction of the annular cotton belt and the output flow rate of each set of nozzles for moisture or heat based on data feedback from multiple temperature and humidity sensors.

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

[0017] 1. In this utility model, the nozzle assembly oscillates periodically within the air guide box as the reciprocating frame moves, forming a fan-shaped diffused airflow with the moisture / hot air delivered by the multi-connected hoses, covering the entire inner side of the annular cotton belt. Combined with the double-layer airflow channel design of the air guide box, the air undergoes temperature and humidity regulation twice through the inner and outer sides of the annular cotton belt, effectively improving the uniformity of airflow. This innovation solves the problems of limited coverage and uneven airflow distribution of traditional fixed nozzles, ensuring that there are no localized moldy or excessively dry areas in the grain silo, and effectively improving the humidity balance.

[0018] 2. This utility model drives the annular cotton belt to vibrate periodically through a vibration guiding system. Combined with bidirectional electronically controlled winding technology, the dust adhering to the surface of the annular cotton belt is shaken off in real time. At the same time, the vibration promotes the deep penetration of airflow into the fiber gaps. Compared with the traditional fixed annular cotton belt, this design eliminates the problem of dust accumulation and clumping caused by long-term stillness, improves the humidity regulation response speed, and the winding system dynamically adjusts the rotation speed and direction of the annular cotton belt according to environmental data to ensure that different areas are evenly contacted by airflow. It overcomes the local aging and adjustment blind spots caused by traditional unidirectional winding and significantly extends the service life of the annular cotton belt.

[0019] 3. The backwash system in this utility model achieves automatic online cleaning by vertically impacting the annular cotton belt with high-pressure airflow and cooperating with the squeezing roller for mechanical dehumidification. The dirt falls into the collection drawer, which effectively improves the cleaning efficiency compared with traditional manual cleaning. Multiple temperature and humidity sensors and a single-chip microcomputer form a closed-loop control system, which analyzes environmental data in real time and dynamically adjusts the nozzle flow rate, solenoid valve opening and annular cotton belt movement parameters. The humidity control response time is shortened to within 10 seconds. Compared with the existing technology that relies on manual intervention or simple threshold control, this solution achieves fully automatic and precise control. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the humidity control device for grain storage according to this utility model;

[0021] Figure 2 This is a schematic diagram of the servo motor and sludge storage drawer of this utility model;

[0022] Figure 3 This utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0023] Figure 4 This is a schematic diagram of the structure of the annular cotton tape and the winding motor of this utility model;

[0024] Figure 5 This is a schematic diagram of the guide roller and the semi-tooth gear of this utility model.

[0025] In the diagram: 1. Housing; 2. Air guide box; 3. Humidifier; 4. Hot air blower; 5. Multi-way flexible hose; 6. Reciprocating frame; 7. Circular cotton belt; 8. Transmission gear plate; 9. Nozzle; 10. Swing gear; 11. Heating plate; 12. Temperature and humidity sensor; 13. Microcontroller; 14. Servo motor; 15. Half-tooth gear; 16. Vibration guide gear plate; 17. Return spring; 18. Guide roller; 19. Winding motor; 20. Backflush box; 21. Sewage drawer; 22. Squeeze roller. Detailed Implementation

[0026] 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.

[0027] like Figures 1 to 5 As shown, this utility model provides a humidity regulating device for grain storage, including a housing 1 and a multi-way hose 5. An air inlet and an air outlet are respectively provided at both ends of the housing 1, and a single-chip microcomputer 13 is installed on the end face of the housing 1.

[0028] The housing 1 is equipped with an air guide box 2, a humidifier 3 and a hot air blower 4, and the humidifier 3 and the hot air blower 4 are both connected to a multi-way flexible hose 5.

[0029] A vibration guiding system is installed on the housing 1, and a reciprocating frame 6 that can move up and down is connected to the vibration guiding system.

[0030] The vibration guiding system includes a servo motor 14 mounted on the housing 1. Two half-tooth gears 15 are mounted on the output shaft of the servo motor 14. Vibration guide plates 16 are mounted on the reciprocating frame 6 at positions corresponding to the two half-tooth gears 15. The two half-tooth gears 15 are respectively connected to the two vibration guide plates 16. A return spring 17 limited by the air guide box 2 is mounted on the bottom surface of the reciprocating frame 6.

[0031] Servo motor 14 drives two half-tooth gears 15 to alternately mesh with the vibration guide plate 16 on the reciprocating frame 6, causing the reciprocating frame 6 to move up and down reciprocally. At the same time, the return spring 17 provides a reverse force to stabilize the vibration amplitude. This working process effectively solves the problem of dust accumulation or clumping on the annular cotton belt 7 due to long-term static operation in traditional humidity control devices. Through periodic vibration, the impurities attached to the surface of the annular cotton belt 7 are shaken off. At the same time, the vibration promotes more even penetration of humidification or hot air flow into the annular cotton belt 7, significantly improving the humidity control efficiency. Compared with the single working mode of the fixed structure in the existing technology, this design enhances the air permeability and activity of the annular cotton belt 7 through dynamic vibration and airflow synergy, thereby maintaining humidity balance more efficiently in grain storage and avoiding localized mold or excessive drying.

[0032] A winding system is installed on the reciprocating frame 6, and an electrically rotatable annular cotton belt 7 is wound on the winding system;

[0033] The winding system includes four guide rollers 18 rotatably connected to the reciprocating frame 6. All four guide rollers 18 are connected to the annular cotton belt 7. A winding motor 19 is installed on the side of the reciprocating frame 6. The output shaft end of the winding motor 19 is fixedly connected to a guide roller 18.

[0034] The winding motor 19 drives the guide roller 18 to rotate, which in turn drives the annular cotton belt 7 to move cyclically along the four guide rollers 18, realizing bidirectional controllable winding of the annular cotton belt 7. During operation, the annular cotton belt 7 can adjust its speed and direction of rotation according to the instructions of the microcontroller 13, ensuring that different areas of it alternately contact the humidification or hot air nozzle 9, avoiding local aging caused by wear in one direction. This design solves the technical pain points of fatigue breakage and low adjustment efficiency of the annular cotton belt 7 in traditional devices. Through the synergistic effect of dynamic winding and reciprocating frame 6, the service life of the annular cotton belt 7 is extended, and it can quickly respond to humidity changes, achieving precise humidity control in grain storage and ensuring the stability of long-term grain storage.

[0035] Two sets of nozzle assemblies are installed on the air guide box 2 at the position corresponding to the inner side of the annular cotton belt 7;

[0036] The nozzle assembly includes a transmission gear plate 8 mounted on the reciprocating frame 6 and a set of nozzles 9 rotatably connected to the air guide box 2. Each nozzle 9 is equipped with a swing gear 10 that meshes with the transmission gear plate 8. The nozzles 9 are adapted to and connected to the multi-port hose 5.

[0037] The up-and-down movement of the reciprocating frame 6 drives the swing gear 10 on the nozzle 9 through the transmission gear plate 8, causing the nozzle 9 to swing periodically within the air guide box 2. The swing range of the nozzle 9 covers the entire inner width of the annular cotton belt 7. Combined with the moisture or hot air delivered by the multi-way hose 5, a fan-shaped diffused airflow is formed. This process overcomes the shortcomings of the traditional fixed nozzle 9, which has a limited coverage area and uneven airflow distribution. It makes the annular cotton belt 7 absorb moisture or receive heat more evenly. In grain storage applications, this component can effectively improve the humidity regulation efficiency.

[0038] The reciprocating frame 6 is equipped with an electric heating plate 11 for electrically heating the annular cotton belt 7, and the bottom of the air guide box 2 is equipped with a backwashing system for backwashing, cleaning and dehumidifying the annular cotton belt 7.

[0039] A temperature and humidity sensor 12 is installed at both ends of the housing 1 and in the middle of the air guide box 2.

[0040] The data terminal of the temperature and humidity sensor 12 is connected to the microcontroller 13, and the air duct 2 is a hollow structure with openings at both ends.

[0041] The backflushing box 20 is connected to the hot air blower 4 or humidifier 3 through the multi-port hose 5. The high-pressure airflow vertically impacts the inside of the annular cotton belt 7 through the backflushing hole, stripping the dust and residual moisture adsorbed by the annular cotton belt 7. The dirt falls into the sludge storage drawer 21. The squeezing roller 22 further improves the moisture removal intensity in the annular cotton belt 7. This design solves the problems of easy clogging of the annular cotton belt 7 and frequent cleaning and maintenance in traditional devices, and realizes online automatic decontamination and dehumidification. In the grain storage scenario, the backflushing system can reduce manual intervention, ensure the continuous operation stability of the equipment, avoid secondary pollution, and maintain the hygiene and safety of the storage environment.

[0042] The backflushing system includes a backflushing box 20 installed at the bottom of the air guide box 2. The inner cavity of the backflushing box 20 is connected to the multi-way hose 5. A set of backflushing holes facing the annular cotton belt 7 are evenly distributed on the bottom surface of the backflushing box 20. The backflushing box 20 and the heating plate 11 are both located inside the annular cotton belt 7. A sludge collection tray 21 with an open top is slidably installed on the backflushing box 20 at a position corresponding to the bottom of the annular cotton belt 7. Two squeezing rollers 22 are rotatably installed on the reciprocating frame 6 at a position corresponding to the position between the annular cotton belt 7 and the sludge collection tray 21.

[0043] A solenoid valve is installed at the connection point between the humidifier 3, the hot air blower 4, and the backwash box 20 and the multi-way hose 5. A flow valve is installed at the connection point between each set of spray pipes 9 and the multi-way hose 5.

[0044] The microcontroller 13 controls the rotation speed and direction of the annular cotton belt 7 and the output flow rate of each set of nozzles 9 based on the data feedback from multiple temperature and humidity sensors 12.

[0045] The electric heating plate 11 electrically heats the annular cotton belt 7, which helps to remove moisture from the annular cotton belt 7 and improves the backwash dehumidification effect.

[0046] Multiple temperature and humidity sensors 12 monitor environmental parameters at both ends of the housing 1 and the middle of the air duct 2 in real time, and feed the data back to the microcontroller 13.

[0047] The microcontroller 13 dynamically adjusts the rotation speed of the annular cotton belt 7, the flow rate of the nozzle 9, and the opening and closing of the solenoid valve through an algorithm to achieve intelligent switching between humidification, dehumidification, or heating modes. This workflow overcomes the lag and error problems of traditional technology that relies on manual control.

[0048] In grain storage, the system can precisely maintain humidity at a set threshold.

[0049] Meanwhile, through the double-layer structure of the annular cotton belt 7 in the air guide box 2 and the setting of multiple sets of nozzles 9, the airflow can be adjusted twice in the air guide box 2, thereby accurately controlling the temperature and humidity of the final airflow from the air guide box 2.

[0050] Meanwhile, the surface-type heat conduction or moisture conduction structure of the annular cotton strip 7 can effectively improve the temperature and humidity uniformity of the airflow.

[0051] Working principle and usage process of this utility model:

[0052] After the system starts, the temperature and humidity sensors 12 at both ends of the housing 1 collect the storage environment data in real time and transmit it to the microcontroller 13. The microcontroller 13 compares the preset humidity threshold with the real-time data to determine whether to execute humidification, dehumidification or constant temperature mode, and generates control commands simultaneously. The servo motor 14 in the vibration guide system drives two half-tooth gears 15 to alternately mesh with the vibration guide tooth plate 16 on the reciprocating frame 6, so that the reciprocating frame 6 performs vertical reciprocating vibration under the limit of the return spring 17. This vibration forces the dust and impurities adsorbed on the surface of the annular cotton belt 7 to fall into the lower sludge collection drawer 21, while enhancing the airflow permeability between the fibers of the annular cotton belt 7. The winding motor 19 drives four guide rollers 18 to drive the annular cotton belt 7 to move in both directions in a circular motion. By adjusting the speed and direction of rotation, the different areas of the annular cotton belt 7 alternately contact the nozzle assembly. The nozzle assembly is subjected to the meshing action of the transmission tooth plate 8 of the reciprocating frame 6 and the swing gear 10, and swings periodically in the air guide box 2, so that the moisture delivered by the multi-connected hose 5 comes from the humidifier 3 or hot air. The hot air blower 4 diffuses airflow in a fan shape, covering the entire inner side of the annular cotton belt 7. The electric heating plate 11 provides auxiliary heating to the annular cotton belt 7 to accelerate moisture evaporation. The backflushing system introduces high-pressure airflow through the multi-port hose 5, which vertically impacts the annular cotton belt 7 through the backflushing holes, removing residual moisture and dust. Combined with the mechanical squeezing action of the squeezing roller 22, the dehumidification efficiency is further improved. The microcontroller 13 achieves intelligent switching between humidification and dehumidification modes by dynamically controlling the opening and closing ratio of the solenoid valve and the flow valve, as well as the rotation frequency of the winding motor 19. Throughout the process, the double-layer airflow channel design of the shell 1 and the air guide box 2 allows ambient air to enter through the air inlet and undergo temperature and humidity regulation twice through the inner and outer sides of the annular cotton belt 7. Finally, a uniformly humidified airflow is output from the air outlet, thereby maintaining a balanced humidity state in the grain storage space. This process, through the four-dimensional synergy of vibration cleaning, dynamic winding, airflow backflushing, and intelligent feedback control, breaks through the technical bottlenecks of low static adjustment efficiency and easy clogging in traditional devices.

[0053] 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.

[0054] 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 humidity control device for grain storage, comprising a housing (1) and a multi-port hose (5), characterized in that: The housing (1) is equipped with an air guide box (2), a humidifier (3) and a hot air blower (4). The humidifier (3) and the hot air blower (4) are connected to a multi-way hose (5). The housing (1) is equipped with a vibration guiding system. The vibration guiding system is connected to a reciprocating frame (6) that can move up and down. The reciprocating frame (6) is equipped with a winding system. The winding system is wound with an electrically rotatable annular cotton strip (7). The air guide box (2) is equipped with two sets of nozzle assemblies at positions corresponding to the inner side of the annular cotton strip (7). The nozzle assembly includes a transmission gear plate (8) mounted on a reciprocating frame (6) and a set of nozzles (9) rotatably connected to an air guide box (2). Each nozzle (9) is equipped with a swing gear (10) that meshes with the transmission gear plate (8). The nozzles (9) are adapted to communicate with a multi-port hose (5). The reciprocating frame (6) is equipped with an electric heating plate (11) for electrically heating the annular cotton belt (7), and the bottom of the air guide box (2) is equipped with a backwashing system for backwashing, cleaning and dehumidifying the annular cotton belt (7). A temperature and humidity sensor (12) is installed at both ends of the housing (1) and in the middle of the air guide box (2).

2. The humidity control device for grain storage according to claim 1, characterized in that: The housing (1) has an air inlet and an air outlet at its two ends respectively. A microcontroller (13) is installed on the end face of the housing (1). The data terminal of the temperature and humidity sensor (12) is connected to the microcontroller (13). The air guide box (2) is a hollow structure with openings at both ends.

3. The humidity control device for grain storage according to claim 1, characterized in that: The vibration guiding system includes a servo motor (14) mounted on the housing (1). Two half-tooth gears (15) are mounted on the output shaft of the servo motor (14). Vibration guide plates (16) are mounted on the reciprocating frame (6) at positions corresponding to the two half-tooth gears (15). The two half-tooth gears (15) are respectively connected to the two vibration guide plates (16). A return spring (17) limited by the air guide box (2) is mounted on the bottom surface of the reciprocating frame (6).

4. The humidity control device for grain storage according to claim 1, characterized in that: The winding system includes four guide rollers (18) rotatably connected to the reciprocating frame (6). All four guide rollers (18) are connected to the annular cotton belt (7) for transmission. A winding motor (19) is installed on the side of the reciprocating frame (6). The output shaft end of the winding motor (19) is fixedly connected to one of the guide rollers (18).

5. The humidity control device for grain storage according to claim 1, characterized in that: The backflushing system includes a backflushing box (20) installed at the bottom of the air guide box (2). The inner cavity of the backflushing box (20) is connected to a multi-way hose (5). A set of backflushing holes facing the annular cotton strip (7) are evenly distributed on the bottom surface of the backflushing box (20). The backflushing box (20) and the heating plate (11) are both located inside the annular cotton strip (7). A sludge collection tray (21) with an open top is slidably installed on the backflushing box (20) at a position corresponding to the bottom of the annular cotton strip (7). Two squeezing rollers (22) are rotatably installed on the reciprocating frame (6) at a position corresponding to the position between the annular cotton strip (7) and the sludge collection tray (21).

6. The humidity control device for grain storage according to claim 1, characterized in that: A solenoid valve is provided at the connection point between the humidifier (3), the hot air blower (4), the backflushing box (20) and the multi-way hose (5), and a flow valve is provided at the connection point between each set of nozzles (9) and the multi-way hose (5).

7. The humidity control device for grain storage according to claim 2, characterized in that: The microcontroller (13) controls the rotation speed and direction of the annular cotton belt (7) and the output flow rate of each set of nozzles (9) based on the data feedback from multiple temperature and humidity sensors (12).

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