Rice bin ventilation device

Abstract

The utility model discloses a rice bin ventilation device, including positioning frame and exhaust mechanism, wherein, exhaust mechanism sets up on positioning frame, and forms the air intake between with positioning frame, exhaust mechanism includes two symmetrical arrangement's support plate, exhaust pipe, first drive arrangement and extension assembly, wherein, exhaust pipe sets up on positioning frame through two symmetrical arrangement's support plate, and first drive arrangement sets up on exhaust pipe, and is located the inside of exhaust pipe, and extension assembly swing joint is in on exhaust pipe, and along the axial movement adjustment of exhaust pipe. Therefore, through the integrated design of top center liftable suction and peripheral annular air intake, reduce the airflow dead angle, can accurate hovering of the air suction mouth above the rice heap, utilizes the negative pressure principle initiative and draws away the humid waste gas that disperses from below to above, and forces the fresh air to enter the rice bin simultaneously, forms the controllable directional replacement airflow, realizes the efficient, even and the warehouse body inside and outside ventilation of no dew risk.

Description

Technical Field

[0001] This utility model relates to the technical field of storage equipment, and in particular to a rice storage ventilation device. Background Technology

[0002] A rice storage ventilation system is a system specifically designed for grain (such as rice, wheat, corn, etc.) storage warehouses. Its core purpose is to control the temperature and humidity of the grain inside the warehouse by forcing or guiding airflow, thereby preventing the grain from becoming moldy, spoiled, or infested with insects, and ensuring the long-term safe storage of the grain.

[0003] In related technologies, the fixed ventilation equipment commonly used in small and medium-sized rice warehouses has dead air zones, which cannot effectively eliminate the humid and hot exhaust gases in the core area of ​​the rice pile. While mobile single-tube fans offer slightly better flexibility, they are extremely inconvenient to operate, requiring personnel to enter the warehouse, which is not only inefficient but also poses safety risks. In addition, traditional methods lack precise control over the airflow path, often resulting in the intake of humid external air from uncontrollable locations such as warehouse doors, which can easily form localized condensation on the warehouse walls or inside the grain pile, thereby exacerbating the risk of grain mold. This makes it impossible to achieve safe, efficient, and comprehensive controllable ventilation inside the rice warehouse. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to propose a rice storage ventilation device. Through the integrated design of the top center liftable suction and the surrounding ring air intake, the dead angle of airflow is reduced. The air intake can be precisely suspended above the rice pile. The negative pressure principle is used to actively draw away the humid and hot exhaust gas that escapes from bottom to top, while forcing fresh air into the rice storage, forming a controllable directional replacement airflow. This achieves efficient, uniform ventilation inside and outside the storage without the risk of condensation.

[0006] To achieve the above objectives, this utility model proposes a rice storage ventilation device, including a positioning frame and an exhaust mechanism. The exhaust mechanism is disposed on the positioning frame and forms an air inlet between the positioning frame and the positioning frame. The exhaust mechanism includes two symmetrically arranged support plates, an exhaust pipe, a first driving device, and an extension assembly. The exhaust pipe is disposed on the positioning frame via the two symmetrically arranged support plates. The first driving device is disposed on the exhaust pipe and located inside the exhaust pipe. The extension assembly is movably connected to the exhaust pipe and can be adjusted by moving along the axial direction of the exhaust pipe.

[0007] In addition, the rice storage ventilation device proposed above according to this utility model may also have the following additional technical features: Specifically, the extension assembly includes a baffle, two symmetrically arranged second drive devices, and an extension pipe, wherein the baffle is disposed on the exhaust pipe, and the extension pipe is movably connected to the exhaust pipe through the two symmetrically arranged second drive devices.

[0008] Specifically, the upper wall of the baffle is sloped and corresponds to the position of the air inlet.

[0009] Specifically, the extension pipe is provided with multiple air intake baffles, which are located below the extension pipe. Adjacent air intake baffles form an air intake channel, which is connected to the exhaust pipe.

[0010] Specifically, a filter screen is provided on the air inlet.

[0011] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects: The rice storage ventilation device of this utility model uses a high-power fan to draw air upward, creating negative pressure inside the storage room. Fresh air from the outside is forced and exclusively enters the storage room through the air inlet and the protective net. The air outlet can be precisely lowered to the upper surface of the rice pile through the extension component. Combined with the multi-directional gas absorption air intake channel, it draws in turbid air from different locations, expanding the single-point suction range and effectively eliminating dead corners caused by fixed ventilation. Through the integrated design of the top center liftable suction and the surrounding ring air intake, the airflow dead corners are reduced. The air intake can be precisely suspended above the rice pile. Using the principle of negative pressure, it actively draws away the humid and hot exhaust gas that escapes from bottom to top, forming a controllable directional replacement airflow. Since the air inlet is at the top and controllable, it avoids humid air from entering from the low temperature of the storage room wall and condensing upon encountering cold, thus achieving efficient, uniform ventilation inside and outside the storage room without the risk of condensation.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the overall structure of the rice storage ventilation device of this utility model; Figure 2 This is a half-sectional view of the rice storage ventilation device of this utility model; Figure 3 This is a schematic diagram of the air intake channel structure of the rice storage ventilation device of this utility model; Figure 4 This is a schematic diagram of the internal structure of the rice storage ventilation device of this utility model.

[0014] As shown in the figure: 1. Positioning frame; 11. Air inlet; 111. Filter screen; 2. Exhaust mechanism; 21. Support plate; 22. Exhaust pipe; 23. First drive device; 24. Extension assembly; 241. Baffle; 242. Second drive device; 243. Extension pipe; 2431. Air inlet baffle; 24311. Air intake channel. Detailed Implementation

[0015] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0016] The rice storage ventilation device of this utility model embodiment will be described below with reference to the accompanying drawings.

[0017] like Figures 1-4 As shown, the rice storage ventilation device of this utility model embodiment may include a positioning frame 1 and an exhaust mechanism 2.

[0018] The exhaust mechanism 2 is mounted on the positioning frame 1, and forms an air inlet 11 between the exhaust mechanism 2 and the positioning frame 1.

[0019] It should be noted that the positioning frame 1 described in this embodiment can be stably connected to the exhaust mechanism 2, and the upper end of the positioning frame 1 is flared, with a through hole for inserting bolts to fix it to the upper opening of the rice bin.

[0020] The exhaust mechanism 2 includes two symmetrically arranged support plates 21, an exhaust pipe 22, a first drive device 23, and an extension assembly 24.

[0021] The exhaust pipe 22 is mounted on the positioning frame 1 via two symmetrically arranged support plates 21. The first driving device 23 is mounted on the exhaust pipe 22 and located inside the exhaust pipe 22. The extension component 24 is movably connected to the exhaust pipe 22 and can be adjusted along the axial direction of the exhaust pipe 22.

[0022] It should be noted that the first driving device 23 proposed in the above embodiment adopts a self-driven high-power fan. When the exhaust pipe 22 is installed vertically in the chamber, the high-power fan blows the hot and humid air in the chamber upward, causing negative pressure to be generated in the exhaust pipe 22, forcing the external air to enter the chamber through the air inlet 11.

[0023] Specifically, during the actual ventilation process, the relevant staff opened the top cover of the rice bin, inserted the device into the bin, and used the positioning frame 1 to lock it at the opening of the rice bin for limiting installation. The device is powered by an external power source.

[0024] During ventilation, the second drive device 242 is driven to adjust the length of the extension pipe 243, so that the bottom air intake baffle 2431 of the extension pipe 243 is close to the rice pile and located above the rice pile. The high-power fan is driven to rotate, pushing the hot and humid air inside the silo upward in the exhaust pipe 22, so that the exhaust pipe 22 and the extension pipe 243 are in a negative pressure state. Multiple air intake channels 24311 close to the rice pile absorb hot and humid air in multiple directions and discharge it through the exhaust pipe 22. At the same time, external air enters the silo through the air inlet 11 and the filter screen 111, hits the upper wall of the baffle 241 and diffuses to the surroundings. As the hot and humid air on the rice pile is continuously drawn out, fresh air is continuously drawn in, forming a controllable directional displacement airflow to ventilate the inside of the rice silo. At the same time, the hot and humid air between the rice grains rises continuously (the rice pile is not an empty space, but a porous medium composed of countless rice grains) and is sucked into the air intake channel 24311 to avoid air short circuit and realize the ventilation of the rice silo.

[0025] In one embodiment of this utility model, such as Figure 2 and Figure 4 As shown, the extension assembly 24 includes a baffle 241, two symmetrically arranged second drive devices 242, and an extension tube 243.

[0026] Among them, the baffle 241 is disposed on the exhaust pipe 22, and the extension pipe 243 is movably connected to the exhaust pipe 22 through two symmetrically arranged second drive devices 242.

[0027] It should be noted that the second driving device 242 described in this embodiment is a cylinder. The telescopic end of the cylinder is connected to the bottom end face of the extension tube 243. At the same time, the bottom end face of the extension tube 243 is flared to facilitate fixing the telescopic end of the cylinder and the air intake baffle 2431.

[0028] In one embodiment of this utility model, such as Figure 2 and Figure 4 As shown, the upper wall of the baffle 241 is inclined and corresponds to the position of the air inlet 11.

[0029] It should be noted that the baffle 241 described in this embodiment guides and diffuses the fresh air entering the chamber, causing the fresh air to flow downwards along the inner wall of the chamber, thus preventing the fresh air from blowing directly downwards.

[0030] In one embodiment of this utility model, such as Figure 2 and Figure 4As shown, the extension pipe 243 is provided with multiple air intake baffles 2431, which are located below the extension pipe 243. Adjacent air intake baffles 2431 form a suction channel 24311, which is connected to the exhaust pipe 22.

[0031] It should be noted that the air intake baffle 2431 proposed in the above embodiment is close to or supported above the rice pile. When the hot and humid air inside the rice pile rises, it enters the air intake channel 24311, where it is absorbed and discharged by negative pressure.

[0032] In one embodiment of this utility model, such as Figures 1-3 As shown, a filter 111 is provided on the air inlet 11.

[0033] It should be noted that the filter 111 described in this embodiment is used to filter the new air entering the chamber and block debris.

[0034] In summary, the rice storage ventilation device of this utility model, through the integrated design of the top center liftable suction and the surrounding annular air intake, reduces the dead angle of airflow. It can accurately suspend the air intake above the rice pile, actively draw away the humid and hot exhaust gas that escapes from bottom to top using the principle of negative pressure, and at the same time force fresh air into the rice storage, forming a controllable directional replacement airflow, thus achieving efficient, uniform ventilation inside and outside the storage and without the risk of condensation.

[0035] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A rice storage ventilation device, characterized in that, Includes the positioning frame and the exhaust mechanism, among which, The exhaust mechanism is mounted on the positioning frame and forms an air inlet between itself and the positioning frame; The exhaust mechanism includes two symmetrically arranged support plates, an exhaust pipe, a first drive device, and an extension assembly, wherein, The exhaust pipe is mounted on the positioning frame via two symmetrically arranged support plates; The first driving device is mounted on the exhaust pipe and located inside the exhaust pipe; The extension component is movably connected to the exhaust duct and can be adjusted by moving along the axial direction of the exhaust duct.

2. The rice storage ventilation device according to claim 1, characterized in that, The extension assembly includes a baffle, two symmetrically arranged second drive devices, and an extension tube, wherein... The baffle is disposed on the exhaust pipe; The extension pipe is movably connected to the exhaust pipe via two symmetrically arranged second drive devices.

3. The rice storage ventilation device according to claim 2, characterized in that, The upper wall of the baffle is sloped and corresponds to the position of the air inlet.

4. The rice storage ventilation device according to claim 2, characterized in that, The extension pipe is provided with multiple air intake baffles, which are located below the extension pipe. Adjacent air intake baffles form an air intake channel, which is connected to the exhaust pipe.

5. The rice storage ventilation device according to claim 1, characterized in that, The air inlet is equipped with a filter screen.

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