Realize fixed side wall ventilation structure with axial flow fan

Abstract

The utility model relates to the field of granary ventilation, especially utilize fixed type side wall ventilation structure of axial flow fan realization. The wall's heat preservation sealed window (5) in the storehouse has installed axial flow fan (3), and axial flow fan (3) is connected with detachable joint (6), and detachable joint (6) is connected with air pipe (8);Air pipe (8) is connected with the air distribution structure;The air distribution structure contains the split horizontal air pipe (81) and vertical air pipe (82) connected together;Split air hole is arranged on vertical air pipe (82), and split air hole divides vertical air pipe (82) into non-hole air pipe (83) and hole air pipe (84);Among them, hole air pipe (84) is located in the relatively lower position: one utilizes existing axial flow fan, and the wall installs along the wall air duct and lower wall air duct, when the temperature difference is larger at night, opens the axial flow to the south side local heat generating part and carries out organized ventilation.

Description

Technical Field

[0001] This utility model relates to the field of grain warehouse ventilation, and in particular to a fixed sidewall ventilation structure using an axial flow fan. Background Technology

[0002] Xinjiang is hot in summer, and there are many areas of localized heat generation on the south side of the wall. Extensive ventilation can disrupt the cooling core during winter.

[0003] Instead of providing adequate ventilation, this allows hot air to enter the grain pile, which also increases costs.

[0004] Therefore, there is an urgent need for a new type of equipment that utilizes the temperature difference between day and night for localized, small-scale ventilation.

[0005] On April 7, 2025, using "axial flow fan and wall and ventilation and fixing" as the abstract keywords and allowing synonym expansion, a search was conducted in the China Patent Publication Database, revealing the following documents: A substation equipped with a ventilation and heat dissipation device - CN104409991B; A combined SVG room ventilation and dust prevention system - CN205860335U; A parallel high-efficiency axial flow fan with a rectangular outlet diffuser and internal baffle - CN113623249B; A ventilation and deodorization device for manure production - CN217613910U; A substation The following are listed as examples of substation main transformer room ventilation and heat dissipation devices: CN204204566U; CN216598638U; CN113623249A; CN104409991A; CN220797573U; and CN104376976A. These documents differ from this patent.

[0006] On April 7, 2025, an abstract search was conducted on CNKI (China National Knowledge Infrastructure) using the keywords "axial flow fan and wall and ventilation and fixing," revealing the following documents: "WEXD-400 sidewall axial flow fan" by Xu Mingcan, Zhu Huajiang, Sun Qing, Xu Lijun, and Luo Shuimiao, Zhejiang Contemporary Fan Co., Ltd., dated October 26, 2023; and "Design of ventilation system for Austin Hotel" by Lu Chengling and Zhang Shengquan, Anhui University of Technology, dated November 20, 2020. These documents differ from this patent.

[0007] On April 7, 2025, with the theme of " Axial flow fan with Wall with Ventilation with FixedA search was conducted on the U.S. Patent and Trademark Office website: https: / / ppubs.uspto.gov / pubwebapp / . Four documents were found, but they were irrelevant: US 20250017439 A1 "Commercial dishwasher (with drying module), method of operation of such dishwasher or drying module for dishwasher"; US 6722359 B2 "Patient ventilation aid"; US20030066638 A1 "Apparatus using a high heat transfer medium"; US 4189281 A "Axial flow fan with auxiliary blades".

[0008] On April 7, 2025, with the theme of " Axial flow fan and Wall and Ventilation and Fixed A search on the website of the Japan Patent Office (https: / / www.j-platpat.inpit.go.jp / ) yielded no relevant results.

[0009] It is completely different from the concept of this patent.

[0010] Background technical literature to be introduced: LS / T 1226-2022 "Intelligent Ventilation Control System for Grain Depots", implemented in 2022, issued by the National Food and Strategic Reserves Administration. LS / T 1202-2002 Technical Specification for Ventilation of Grain Storage Machinery, implemented on March 1, 2003, published by China Standards Press on December 20, 2002. GB 50320-2014 "Code for Design of Flat Grain Warehouses", implemented on March 1, 2015, published by China Planning Press on June 23, 2014. GB 50234-2002 "Code for Acceptance of Construction Quality of Ventilation and Air Conditioning Engineering", implemented on July 1, 2002, published by China Building Industry Press on March 15, 2002. GB / T 26882.1-2024 Grain and Oil Storage Grain Condition Monitoring and Control System Part 1: General Rules, will be implemented on June 1, 2025, and was published on November 28, 2024. LS / T 1813-2017 "Technical Requirements for Digital Temperature Measurement Cables for Grain Condition Monitoring and Control in Grain and Oil Storage" has no additional publication / implementation date indicated. LS / T 1809-2017 "General Technical Requirements for Grain Condition Monitoring and Control in Grain and Oil Storage" has no additional publication / implementation date indicated. Grain Storage and Ventilation Engineering, August 2019, China Agriculture Press, ISBN: 9787109255684 "Pipeline Fittings Design and Selection Manual", May 2018, Chemical Industry Press, ISBN: 9787122314682 "Grain Depot Storage Facility Maintenance Manual", November 2020, China Commerce Press, ISBN: 9787520813654 *Grain and Oil Storage Science* (National Key Textbook during the Ninth Five-Year Plan), March 1999, China Finance and Economics Press, ISBN: 7-5005-3955-X / TS•0089 Grain Storage Equipment and Technology, September 2002, China Finance and Economics Press, ISBN: 7-5005-5945-3 / TS•0109 "Central Reserve Grain and Oil Storage Technology and Management", 2004-09, Chemical Industry Press, ISBN: 7-5025-6011-4 / TS•193 Grain Storage and Transportation Safety and Technology Management, 2005-05, Chemical Industry Press, ISBN: 7-5025-6789-5 / TS•264 "Technical Manual for Farmers' Safe Grain Storage", 2006-03, Chemical Industry Press, ISBN: 7-5025-8164-2 "Grain and Oil Storage Keeper" (Professional Skills Training Course for the Grain Industry), April 2006, China Agriculture Press, ISBN: 7-109-10816-3 Grain and Oil Storage Clerk (Second Edition, Professional Skills Training Course for the Grain Industry), March 2007, China Light Industry Press, ISBN: 978-7-5019-5884-9 / TS•3427 *National Grain Industry Grain and Oil Storage Technician Vocational Skills Operation Examination Guidance Manual*, July 2008, China Labor and Social Security Publishing House, ISBN: 978-7-5045-7230-1 *Grain and Oil Storage Science* (National Eleventh Five-Year Plan Textbook), October 2008, China Light Industry Press, ISBN: 978-7-5019-6580-9 *Grain and Oil Storage Science* (Second Edition, National Twelfth Five-Year Plan Textbook), March 2016, China Light Industry Press, ISBN: 978-7-5184-0713-2 *Grain and Oil Storage Technology and Equipment* (13th Five-Year Plan Textbook), August 2016, China Light Industry Press, ISBN: 978-7-5184-0919-8 "Grain Warehouse Storage Technology and Management", 2021-05, China Light Industry Press, ISBN: 978-7-5184-3340-7 "Questions and Answers on Central Grain and Oil Storage Technology", September 2005, Liaoning Science and Technology Press, ISBN: 978-7-5381-4523-6 "Ventilation Technology for Grain Storage Machinery", January 2014, Zhengzhou University Press, ISBN: 978-7-5645-1630-7 "Research on Optimized Design and Construction Technology of Ventilation Ducts in Grain Depots", March 2024, *Grain Science and Technology & Economy*, 2024, No. 3. "Research on Ventilation System Modification Technology of Shallow Round Silos", June 2022, Grain Storage, No. 4, 2022 "Design and Application of Detachable Ventilation Duct Joints", August 2023, *Mechanical Engineer*, Issue 8, 2023. "A Variable Frequency Temperature Ventilation Control System for Grain Depots Based on LoRa Communication and Sensing Technology," *Chinese Journal of Agricultural Mechanization*, 2025. "Intelligent Precision Ventilation Control System for Grains", 2018, National Food and Strategic Reserves Administration Research Institute "Design of Intelligent Circulating Ventilation Grain Storage Silo Based on PLC", 2025, *Grain Science and Technology & Economy* Design of Grain Condition Monitoring System for Grain Depot Based on ZigBee Wireless Sensor Network, 2014, Industrial Control Computer, 2014, 27(11) "Temperature and Humidity Monitoring System for Bulk Grain Containers Based on LoRa Wireless Technology", 2018, "Microcontrollers & Embedded Systems Applications", 2018, 18(10). Summary of the Invention

[0011] The purpose of this utility model is to provide a more effective fixed sidewall ventilation structure using an axial flow fan. The specific purpose is explained in the detailed implementation section for several substantial technical effects.

[0012] To achieve the above objectives, the present invention adopts the following technical solution: The fixed sidewall ventilation structure using an axial flow fan is characterized in that an axial flow fan 3 is installed inside the heat-insulated and sealed window 5 of the wall inside the chamber, the axial flow fan 3 is connected to a detachable joint 6, and the detachable joint 6 is connected to an air duct 8. Duct 8 connects to the air distribution structure; The air distribution structure can be any one of the following: The air distribution structure includes connected horizontal air ducts 81 and vertical air ducts 82. A splitting hole is arranged on the vertical duct 82, which divides the vertical duct 82 into a non-perforated duct 83 and a perforated duct 84; the perforated duct 84 is located at a relatively low position. The air distribution structure includes an air distribution plate 11, on which multiple air distribution holes are provided.

[0013] A further technical solution of this utility model is that a steel wire anti-bird net 4 is also arranged on the heat-insulating and sealing window 5.

[0014] A further technical solution of this utility model is that the detachable connector 6 is a detachable elbow.

[0015] A further technical solution of this utility model is that the detachable connector 6 is fixed to the heat-insulating and sealing window 5 by bolts.

[0016] A further technical solution of this utility model is that the horizontal duct 81 and the vertical duct 82 are multi-segment pipes that can be quickly connected.

[0017] A further technical solution of this utility model is that a switch 7 is arranged on the air duct 8.

[0018] A further technical solution of this utility model is that each vertical air duct 82 is an air duct opening, each air duct opening is equipped with a flap switch, and each air duct opening can independently control one airflow path.

[0019] The present invention, employing the above technical solution, has the following advantages over the prior art: Utilizing existing axial flow fans, wall-mounted and lower-wall ducts are installed. When the temperature difference is significant at night, the axial flow fan is turned on to provide organized ventilation to the locally heated areas on the south side. Each wall-mounted and lower-wall duct is equipped with an independent switch to provide organized ventilation to different heated areas. Attached Figure Description

[0020] To further illustrate the present invention, the following description is provided in conjunction with the accompanying drawings: Figure 1 A cross-sectional structural diagram of the invention; Figure 2 A frontal perspective view of the internal structure of the invention; Figure 3 A top-view structural diagram of the invention; Figure 4 A perspective view of the invention. Figure 5 A three-dimensional diagram of the invention; Figure 6 A structural diagram of a further improved air distribution plate for the invention; Among them: 1. Outside the warehouse; 2. Inside the warehouse; 3. Axial flow fan; 4. Steel wire mesh to prevent birds; 5. Insulated and sealed window; 6. Detachable joint; 7. Switch; 8. Air duct; 9. Expansion bolt; 10. Valve; 11. Air distribution plate; 81. Horizontal air duct; 82. Vertical air duct; 83. Non-perforated air duct; 84. Perforated air duct. Detailed Implementation

[0021] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.

[0022] 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.

[0023] This patent provides multiple parallel solutions; the different descriptions represent improved solutions or parallel solutions based on the basic solution. Each solution has its own unique characteristics. Furthermore, the technical features involved in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other. Fixing methods not described herein can be any type of fixing, such as threaded fixing, bolt fixing, or adhesive bonding.

[0024] Example 1: Referring to all the attached drawings; a fixed sidewall ventilation structure is realized by using an axial flow fan, characterized in that an axial flow fan 3 is installed in the heat-insulated and sealed window 5 of the wall inside the chamber, the axial flow fan 3 is connected to a detachable joint 6, and the detachable joint 6 is connected to a duct 8; Duct 8 connects to the air distribution structure; The air distribution structure can be any one of the following: The air distribution structure includes connected horizontal air ducts 81 and vertical air ducts 82. A splitting hole is arranged on the vertical duct 82, which divides the vertical duct 82 into a non-perforated duct 83 and a perforated duct 84; the perforated duct 84 is located at a relatively low position. The substantive technical effects and implementation process of the technical solution described herein, i.e., its basic functions, are as follows: Specifically, a 300mm diameter wall-mounted air duct is horizontally installed along the inner side of the south wall of the warehouse, with its lower end connected to the lower wall-mounted air duct. Lower wall-mounted air ducts are installed every 4-6 meters, utilizing existing 500mm ground-level cages mounted on the wall. The upper end of the wall-mounted air duct is connected to an axial flow fan via a detachable connector. Each air duct opening is equipped with a flap-type switch, allowing each air duct opening to independently control one airflow path.

[0025] In southern Xinjiang, when localized grain temperatures rise in warehouses during the summer, axial flow fan connections are installed and sealed. Utilizing the temperature difference between day and night in the evening, organized ventilation is used to lower the grain temperature. The entire system can be equipped with timers and linkage devices for automatic start / stop and automatic ventilation and temperature control.

[0026] Addressing the defect of "numerous localized heat-generating areas on the south wall, leading to poor ventilation in winter," this system enables small-scale ventilation, fully utilizes axial flow fans, is easy to install, and innovatively leverages day-night temperature differences to achieve ventilation and control of grain piles.

[0027] Example 2: As a further improvement, parallel, or optional independent solution, the air distribution structure includes an air distribution plate 11 with multiple air distribution holes. The substantive technical effect and implementation process of this technical solution, i.e., its basic function, are as follows: Referring to the last two attached figures, this embodiment is a parallel solution that can distribute air into the room for small-scale ventilation.

[0028] Example 3: As a further improvement, parallel, or optional independent solution, a steel wire mesh 4 is also arranged on the insulated and sealed window 5. The substantive technical effect and implementation process of this technical solution, i.e., its basic function, is as follows: to prevent sparrows and other birds from entering the warehouse and eating the grain.

[0029] Example 4: As a further improvement, parallel, or optional independent solution, the detachable connector 6 is a detachable elbow. The substantive technical effect and implementation process of this technical solution, i.e., its basic function, are as follows: it can be disassembled when no longer needed.

[0030] Example 4: As a further improvement, parallel solution, or optional independent solution, the detachable joint 6 is fixed to the insulated and sealed window 5 by bolts. The substantive technical effect and implementation process of the technical solution here, i.e., the basic function, are as follows: similar fixing methods are all within the protection scope of this patent.

[0031] Example 5: As a further improvement, parallel, or optional independent solution, the horizontal duct 81 and vertical duct 82 are multi-segment pipes that can be quickly connected. The substantive technical effects and implementation process of this technical solution, i.e., its basic functions, are as follows: it enables rapid assembly and disassembly, and facilitates convenient storage and organization.

[0032] Example 6: As a further improvement, parallel, or optional independent solution, a switch 7 is arranged on the duct 8. The substantive technical effect and implementation process of this technical solution, i.e., its basic function, are as follows: each vertical duct 82 is an air duct opening, each air duct opening is equipped with a flap switch, and each air duct opening can independently control one airflow path.

[0033] Utilizing existing axial flow fans, wall-mounted and lower-wall ducts are installed. When the temperature difference is large at night, the axial flow fans are turned on to provide organized ventilation to the localized heat-generating areas on the south side. Each wall-mounted and lower-wall duct is equipped with an independent switch to provide organized ventilation to different heat-generating areas.

[0034] Innovatively, each of the above effects exists independently, yet a single structure can be used to combine the results.

[0035] It should be noted that the multiple modules in this patent are an integration of existing technology modules and do not involve any new modules. Even if some modules use programs, those programs are undoubtedly known programs.

[0036] It should be noted that the multiple solutions provided in this patent include their own basic solutions, which are independent of each other and do not restrict each other. However, they can also be combined with each other without conflict to achieve multiple effects.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims.

Claims

1. A fixed sidewall ventilation structure using an axial flow fan, characterized in that, An axial flow fan (3) is installed inside the heat-insulated and sealed window (5) in the wall inside the warehouse. The axial flow fan (3) is connected to a detachable connector (6), and the detachable connector (6) is connected to an air duct (8). The duct (8) is connected to the air distribution structure; The air distribution structure can be any one of the following: A. The air distribution structure includes connected horizontal air ducts (81) and vertical air ducts (82). A splitting hole is arranged on the vertical duct (82), which divides the vertical duct (82) into a non-perforated duct (83) and a perforated duct (84); the perforated duct (84) is located at a relatively low position. The air distribution structure includes an air distribution plate (11) with multiple air distribution holes.

2. A fixed sidewall ventilation structure using an axial flow fan as described in claim 1, characterized in that, A wire mesh (4) is also installed on the heat-insulating and sealed window (5).

3. A fixed sidewall ventilation structure using an axial flow fan as described in claim 1, characterized in that, The detachable connector (6) is a detachable elbow.

4. A fixed sidewall ventilation structure using an axial flow fan as described in claim 3, characterized in that, The detachable connector (6) is fixed to the insulated and sealed window (5) by bolts.

5. A fixed sidewall ventilation structure using an axial flow fan as described in claim 1, characterized in that, The horizontal duct (81) and vertical duct (82) are multi-segment pipes that can be quickly connected.

6. A fixed sidewall ventilation structure using an axial flow fan as described in claim 1, characterized in that, A switch (7) is installed on the air duct (8).

7. A fixed sidewall ventilation structure using an axial flow fan as described in claim 1, characterized in that, Each vertical duct (82) is a duct opening, and each duct opening is equipped with a flap switch, and each duct opening can independently control one airflow.

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