Sunlight guide-in mildew-inhibiting and deinsectization lighting system for grain storage facility

Abstract

The utility model provides a sunlight guide-in mildew-inhibiting deinsectization lighting system for a grain storage facility, which is characterized in that a sunlight guide-in device is arranged on the top surface outside the grain storage facility and is used for guiding sunlight into the grain storage facility, and the sunlight guide-in device keeps ultraviolet rays in the sunlight to the greatest extent and isolates infrared rays which can bring heat, so that the sunlight can be guided into the grain storage facility. Long-time natural sunlight is utilized, safe, environment-friendly and energy-saving in-bin lighting with mildew inhibition, deinsectization and energy conservation is achieved, and the system is further provided with a quick release module used for supplementary lighting and ultraviolet disinfection. Auxiliary lighting in cloudy and rainy days and at night is realized by utilizing a light guide system, and high-intensity ultraviolet centralized disinfection can be implemented according to needs. According to the utility model, cables do not need to be arranged in the granary, the safety requirement of'dust explosion-proof 20 areas' in the granary is completely met, and the device has wide application prospect in the grain storage and transportation industry.

Description

Technical Field

[0001] This utility model relates to the field of grain storage mold and pest control technology, and also has the functions of safe, explosion-proof, green and energy-saving grain warehouse lighting. Specifically, it provides a sunlight-guided mold-inhibiting and insect-repelling lighting system for grain storage facilities. Background Technology

[0002] Grain storage facilities, also known as grain warehouses, mainly consist of silos, flat warehouses, and shallow circular warehouses. Because operations inside these warehouses generate dust, they are classified as explosion-proof locations according to "GB / T 3836.35-2021 Explosive Atmospheres Part 35: Classification of Explosive Dust Atmospheres." Furthermore, "GB 17440-2025 'Safety Specification for Dust Explosion Prevention in Grain Processing and Storage Systems'" stipulates that power supplies above 36V should not be connected. Therefore, there are many restrictions on the installation of lighting power supplies inside grain warehouses.

[0003] Grain storage environments have special requirements for airtightness, explosion protection, and temperature. Large grain storage facilities should not use lighting methods such as skylights (which can easily lead to direct sunlight) or open windows (which can easily lead to moisture and pests).

[0004] A search revealed that Chinese patent document CN213065951U discloses a grain warehouse lighting system that uses optical fiber to transmit sunlight. The system involves arranging a light-collecting device on the top of the grain warehouse, and arranging a light-guiding optical fiber and a radiation device within the grain warehouse. It uses an existing light lighting system to guide sunlight into the grain warehouse for illumination. The light-collecting device performs secondary filtering of ultraviolet rays, thus filtering out ultraviolet rays. Moreover, its arrangement requires openings in the top of the grain warehouse.

[0005] The inventor focuses on the research and development of supporting equipment for grain storage, and focuses on the safety and explosion-proof lighting needs of grain warehouses. In response to the two core problems affecting the quality of grain during the storage process, namely mold growth and insect infestation, the inventor has improved the design, changing "filtering and blocking ultraviolet rays" to "enhancing the introduction of ultraviolet rays". Through a specially designed quick-release auxiliary lighting and ultraviolet generator, the invention can cope with insufficient light in rainy weather and at night, and significantly enhance the disinfection effect. Summary of the Invention

[0006] Purpose of the invention: In order to simultaneously meet the electrical explosion-proof safety and mold and insect control requirements of large-scale grain storage facilities, this invention designs a sunlight-guided lighting system for grain storage facilities to inhibit mold and insects.

[0007] Technical solution: The solar light guiding and anti-mold and insect-repelling lighting system for grain storage facilities designed in this application involves arranging a solar light guiding device on the top surface outside the grain storage facility to guide sunlight into the grain storage facility. The solar light guiding device retains ultraviolet rays in the sunlight to achieve anti-mold and insect-repelling lighting.

[0008] In a preferred embodiment of the present invention, the sunlight guiding device employs a light-collecting dome, which guides sunlight through a light guide tube to a diffuser within the grain storage facility. The light guide tube passes through the grain silo dome, allowing the system to be integrated during the grain silo design and construction. This results in lower equipment costs, energy efficiency, environmental friendliness, better economic benefits, and improved building quality. Alternatively, the light-collecting dome can be installed at the top of an existing grain silo's ventilation opening, with the light guide tube passing through the ventilation opening into the silo, facilitating the installation of the system of the present invention on existing grain silos.

[0009] Another preferred embodiment of the present invention is that the sunlight guiding device is a concentrator, which guides sunlight into a diffuser inside the grain storage facility via an optical fiber bundle. The optical fiber can bend and transmit, which can overcome the limitations of grain warehouse buildings. The optical fiber bundle enters from the side wall of the grain warehouse ventilation opening, and has minimal impact on existing grain warehouses.

[0010] In addition to its use for mold and insect control, this system can also be used for lighting in warehouse operations. For example, grain warehouse inspections or leveling operations can be carried out at night or on cloudy or rainy days when there is insufficient light. A light source component can be installed at the front end of the sunlight guide device.

[0011] To more efficiently and proactively carry out mold and insect control operations, an ultraviolet generator component can be installed at the front end of the sunlight-guiding device.

[0012] To retain ultraviolet rays from sunlight, materials such as ZS-221 coating can be added to the sunlight guiding device, thereby achieving the dual functions of UVC band sterilization and mildew inhibition and reducing infrared radiation accumulation in the lighting system.

[0013] When using a light guide system, the light-collecting dome is designed in a highly transparent diamond or hemispherical shape to efficiently absorb sunlight entering from all angles. The cost of a light guide system is lower, about one-fifth that of a fiber optic system, resulting in better economic benefits.

[0014] Preferably, the sunlight guiding device shields infrared rays in sunlight, reducing the accumulation of infrared radiation heat while stably operating UVC band sterilization.

[0015] Preferably, the sunlight guiding device is equipped with a detachable auxiliary light source, which includes, but is not limited to, LED supplemental lights or other artificial lighting fixtures, for providing supplemental lighting when there is insufficient light.

[0016] Invention Principle: Existing solar lighting systems typically use ultraviolet (UV) filters added to the light collector to block UV rays. Current building lighting coatings must suppress both UV and infrared light. This invention, through the selection of light-guiding media and their coatings, retains both visible and UV light, solving the problem of auxiliary lighting while also providing anti-mold and insecticidal effects. The inventors discovered the actual need for UV light in large grain storage facilities and overcame the technical bias of existing solar light import systems requiring UV filtering. They creatively introduce natural UV light into the grain silo, which can inhibit and kill mold spores and insect eggs on the grain surface and in the upper space of the silo. Currently, anti-mold and insecticidal methods in grain silos mainly involve periodic fumigation with pesticides. If the grain storage depth in silos is over 30 meters, pests, due to their phototaxis, are attracted to the visible light introduced by the system and can climb upwards to reach the effective range of the pesticide fumigation, improving the utilization rate and killing effect of the pesticide.

[0017] This invention maximizes the retention of ultraviolet rays in sunlight while isolating infrared rays that generate heat. There are two types of sunlight-guiding devices: one uses a transparent light-collecting dome to guide sunlight through a large-diameter light guide tube to a diffuser within the grain storage facility, with the light guide tube passing through the grain silo dome or utilizing existing ventilation holes. The other uses a lens-type concentrator with solar tracking capabilities to guide sunlight through an optical fiber bundle to a diffuser within the grain storage facility, with the optical fiber bundle entering from the side wall of the grain silo's ventilation opening. The sunlight-guiding device can be coated with materials such as ZS-221, which can effectively reflect the spectrum of wavelengths 400-2500nm (including infrared light) but allow the transmission of ultraviolet (UVC) light with the most effective sterilization wavelength of 200-300nm. The light-collecting dome can adopt a diamond-shaped or hemispherical structure to accommodate different directions of sunlight, and the concentrator can also use a solar tracking gimbal to maximize sunlight reception.

[0018] Beneficial effects: This application ingeniously introduces ultraviolet and visible light from sunlight into grain storage facilities, possessing the following substantial features and advancements:

[0019] Introducing ultraviolet light into the grain silo provides a long-lasting inhibitory effect on mold growth. This not only kills / inhibits mold spores and insect eggs, but also utilizes the phototaxis of pests to lure them from deep within the grain to the fumigation area, thus enhancing the pest control effect.

[0020] Safety is ensured by placing the light source and ultraviolet generator outside the grain silo, eliminating the need for cables inside the silo and fully complying with the explosion-proof safety requirements for silos.

[0021] It is energy-saving and basically solves the daytime lighting needs inside the warehouse, eliminating the need for electricity. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0023] Figure 2 yes Figure 1 Internal structure diagram;

[0024] Figure 3 This is a schematic diagram of the detachable ultraviolet generator assembly in Example 1;

[0025] Figure 4 This is a schematic diagram of the detachable light source assembly in Embodiment 1;

[0026] Figure 5 This is a schematic diagram showing the usage status of the ultraviolet generator assembly;

[0027] Figure 6 This is a structural schematic diagram of embodiment 2 of the utility model;

[0028] Figure 7 yes Figure 5 Internal structure diagram;

[0029] In the diagram: 1. Grain silo dome; 2. Light cover; 3. Light guide tube; 4. Diffuser; 5. Ultraviolet generator assembly; 6. Light source assembly; 7. Concentrator; 8. Fiber optic bundle; 9. Diffuser; 10. Ultraviolet lamp; 11. LED supplementary light; 12. Ventilation duct. Detailed Implementation Example 1

[0030] The structure of this example is as follows: Figure 1 and Figure 2 The image shows the integration of a light guide tube system into the grain silo structure.

[0031] The sunlight guide device hood 2 is arranged on the grain silo dome 1, and the light guide tube 3 passes through the grain silo dome 1. It can be integrated during the design and construction of the grain silo, or the original ventilation pipe 12 can be used directly. The sunlight is introduced into the diffuser 4 in the grain storage facility.

[0032] This invention maximizes the retention of ultraviolet rays in sunlight while isolating infrared rays that generate heat. A transparent light-collecting dome guides sunlight through a large-diameter light guide tube to a diffuser within the grain storage facility. The sunlight-collecting device can be coated with materials such as ZS-221, which effectively reflects the spectrum of wavelengths 400-2500nm (including infrared light) but allows the transmission of ultraviolet (UVC) light with the most effective sterilization wavelength of 200-300nm. The light-collecting dome employs a diamond-shaped or hemispherical structure to accommodate different directions of sunlight.

[0033] In addition to its use for mold and insect control, this system can also be used for lighting in warehouse operations. For example, grain warehouse inspections or leveling operations can be carried out at night or on cloudy or rainy days when there is insufficient light. A light source component can be installed at the front end of the sunlight guide device.

[0034] The method of installing the ultraviolet generator component 5 or the light source component 6 at the front end of the sunlight guiding device is as follows: Figure 3 and Figure 4 As shown, it is a detachable cover installed above the sunlight guide device, with an ultraviolet lamp 10 or an LED supplemental light 11 installed inside, and externally connected to the power supply at the top of the grain silo via a cable.

[0035] like Figure 5 As shown, installation or disassembly is performed by personnel on top of the grain silo, directly fixing the UV generator component 5 to the top of the light-collecting cover (using detachable clips). It can also be further upgraded to a mechanical opening and closing structure, such as a flip-top mechanism or a sliding mechanism, and remotely operated. Example 2

[0036] This example Figure 6 and Figure 7 As shown, the sunlight guiding device uses a concentrator 7, which guides sunlight through an optical fiber bundle 8 to a diffuser 9 inside the grain silo. The optical fiber can bend and transmit light, overcoming the limitations of the grain silo building. The optical fiber bundle 8 enters from the side wall of the ventilation duct 12 on the grain silo dome 1, having minimal impact on the existing grain silo structure. The concentrator can be a solar trajectory tracking gimbal to maximize the amount of sunlight received. Example 3

[0037] This invention integrates a fiber optic lighting system or a light guide tube system into a grain silo. The main inventive point is the way the system is integrated with the grain silo structure, which has been described in detail in Embodiments 1 and 2.

[0038] When introducing sunlight, the system retains the maximum amount of ultraviolet radiation while blocking infrared radiation that generates heat. This achieves the dual goals of the lighting system: UVC sterilization and mold inhibition, and reduced slow heat accumulation. A multi-layer coating structure is employed to ensure stable operation of the UVC sterilization system while minimizing heat accumulation caused by infrared radiation, thereby protecting grain quality and extending the facility's lifespan.

[0039] The overall structure is divided into two layers:

[0040] ①UVC permeable membrane (Substrate Layer)

[0041] Allows 254nm highly effective bactericidal UVC light to pass through.

[0042] Block visible light and heat radiation to reduce indoor heat conduction.

[0043] Weather and light resistant, suitable for long-term outdoor use.

[0044] ②Infrared Reflective Layer

[0045] Reflects thermal radiation in the 700–2500nm band, preventing heat from penetrating from the top.

[0046] It can achieve a total reflectivity of >80%, significantly reducing the heat load inside the warehouse.

[0047] Material Selection Reference

[0048] 1. Top layer: UVC permeable membrane (recommended thickness: 80–120 μm)

[0049] 2. Lower layer: Infrared reflective processing layer (recommended thickness: 20–60 μm)

[0050] Product Structure

[0051] Expected structural thickness range: 100-180μm.

Claims

1. A sunlight-guided lighting system for grain storage facilities to inhibit mold and pests, comprising a sunlight-guided device arranged on the top surface outside the grain storage facility to guide sunlight into the grain storage facility, characterized in that: The sunlight introduction device retains ultraviolet rays in the sunlight.

2. The sunlight-introducing mildew- and insect-eliminating lighting system for a grain storage facility according to claim 1, characterized by: The sunlight introduction device is a light cover that introduces sunlight into a diffuser in the grain storage facility through a light pipe, and the light pipe passes through the vault of the granary.

3. The sunlight-introducing mildew- and insect-eliminating lighting system for a grain storage facility according to claim 1, characterized by: The sunlight introduction device is a light concentrator that introduces sunlight into a light diffuser in the grain storage facility through a fiber bundle, and the fiber bundle passes into the granary from a ventilation opening of the granary.

4. The sunlight-introducing mildew- and insect-eliminating lighting system for a grain storage facility according to claim 1, characterized by: The sunlight introduction device is equipped with a detachable auxiliary light source.

5. The sunlight-introducing mildew- and insect-eliminating lighting system for a grain storage facility according to claim 1, characterized by: The sunlight introduction device is equipped with a detachable ultraviolet ray generator.

6. The sunlight-introducing mildew- and insect-eliminating lighting system for a grain storage facility according to claim 1, characterized by: The sunlight introduction device is coated with ZS-221.

7. The sunlight-introducing mildew- and insect-eliminating lighting system for a grain storage facility according to claim 2, characterized by: The light cover is in the shape of a diamond or a hemisphere.

8. The sunlight-introducing mildew- and insect-eliminating lighting system for a grain storage facility according to claim 2, characterized by: The light cover is installed at the top end of the existing top ventilation opening of the granary, and the light pipe passes through the top ventilation opening of the granary into the granary.

9. The sunlight-introducing mildew- and insect-eliminating lighting system for a grain storage facility according to claim 3, characterized by: The light concentrator has a sun trajectory tracking holder.

10. The solar light introduction, mold and insect control lighting system for a grain storage facility according to any one of claims 1 to 9, characterized in that: The sunlight introduction device retains visible light in the sunlight and shields infrared rays in the sunlight.

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