Fixed device of grain depot trapping lamp and fumigation-free trapping system
Patent Information
- Application Number
- CN202522357313.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-06
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-11-06
AI Technical Summary
1、本实用新型通过通风系统，利用通风形成的温度场和气流，将可能残存的活性害虫驱赶至表层，并由害虫诱捕系统进行物理灭杀，阻断了害虫的繁殖，这不仅取代了传统的磷化氢熏蒸，从源头上杜绝了化学药剂带来的安全风险，还为市场提供了绿色口粮，并保障了仓储作业人员的健康安全；
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Figure CN224775873U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain storage technology, and in particular to a grain depot trapping lamp fixing device and a fumigation-free trapping system. Background Technology
[0002] Food security is a major strategic issue concerning the national economy and people's livelihood. In the grain storage sector, the long-term reliance on chemical agents such as phosphine for fumigation and pest control not only poses safety risks such as poisoning and explosions to operators, but also leads to environmental pollution and pesticide residues in grain, contradicting the current development concepts of green, ecological, and environmental protection. To reduce reliance on chemical fumigation, low-temperature grain storage technology has been widely used as a physical pest control method. This technology is based on maintaining the temperature of the grain pile at a low temperature for an extended period to inhibit pest reproduction and microbial activity, thereby achieving the goal of safe grain storage. In past practices, while low-temperature grain storage has significantly reduced the number of fumigation sessions, it has never been able to completely replace fumigation.
[0003] However, existing low-temperature grain storage technologies still have significant shortcomings in practice. First, controlling the uniformity of temperature inside large grain piles is difficult. Due to the large volume of grain piles, traditional ventilation systems and refrigeration equipment struggle to achieve precise temperature control within the pile, especially in localized areas such as side walls and corners. This results in uneven temperature distribution within the grain pile, creating conditions for pests to survive and reproduce, ultimately necessitating full-scale chemical fumigation. Second, traditional ventilation systems are inefficient and lack flexibility. Existing ventilation systems cannot achieve zoned or directional airflow, resulting in ventilation dead zones. They are also insufficient in providing differentiated management and synchronous ventilation during long-term grain loading, leading to energy waste and limited ventilation opportunities. Finally, there is a lack of comprehensive regulation of the grain pile ecosystem. Existing technologies often focus on single-factor temperature control, failing to systematically integrate and coordinate the control of factors such as temperature, humidity, and physical pest trapping. This results in limited effectiveness in preventing moisture loss and completely blocking pest generation, making it difficult to achieve the goals of fumigation-free, low-loss, and high-quality grain storage. Utility Model Content
[0004] This utility model provides a grain depot trapping light fixing device and a fumigation-free trapping system to solve the above-mentioned technical problems.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A grain depot trapping lamp fixing device and a fumigation-free trapping system are provided, including a grain depot. The grain depot is equipped with a ventilation system and a pest trapping system. A fixed support is provided on the surface area of the grain pile in the grain depot. The pest trapping system is installed on the fixed support. The ventilation system creates airflow to gather pests on the surface area of the grain pile. The pest trapping system is used to emit light waves to trap pests.
[0006] Furthermore, the ventilation system includes branch air ducts, a rectifier box, and an external control cabinet. The branch air ducts are connected to the external control cabinet via the rectifier box and are laid on the ground of the grain depot. These branch air ducts form the ground-level network of the ventilation system, serving as the infrastructure for zoned management and directional airflow. Lay at the bottom of the grain pile, the branch air ducts are used to evenly or as needed deliver treated air into the grain pile, creating a controllable airflow environment inside the grain pile, thus providing a physical channel for precise temperature control and pest repellency.
[0007] Furthermore, the branch ventilation duct system includes side-wall annular ducts and intermediate branch ducts. The intermediate branch ducts are arranged at equal intervals, and the side-wall annular ducts and intermediate branch ducts are connected to form the ground ventilation area of the grain silo. This layout divides the entire grain silo floor into several characteristic ventilation zones. The side-wall annular ducts specifically target the heat scabbing effect and ventilation dead zones that are prone to occur at the junction of the grain pile and the silo wall, while the equally spaced intermediate branch ducts are responsible for the ventilation of the main grain pile. The two are interconnected to form a complete air network, ensuring full coverage from the center of the silo to the edge side walls. This lays the structural foundation for achieving differentiated and precise ventilation management and fundamentally solves the problem of uneven temperature in traditional ventilation systems.
[0008] Furthermore, the rectifier box is equipped with airflow regulating valves for controlling the branch air ducts. The rectifier box controls the branch air ducts via these valves, achieving the goal of ventilation to specific areas, implementing differentiated and precise management, and eliminating ineffective ventilation. Additionally, when some grain is moved in or out of the warehouse, the remaining ventilation ducts can continue to operate, preventing ventilation short-circuiting and providing more time for ventilating and cooling the grain pile. In particular, it overcomes the drawback of traditional conditions where ventilation is impossible during long periods of grain storage, creating optimal ventilation conditions for maximum freshness.
[0009] Furthermore, the pest trapping system includes multiple multispectral trapping lamps, which are evenly arranged on the ground of the grain silo. In the low-temperature storage environment, pests exhibit reduced activity and reproduction. Through the air and temperature rise channels created by the ventilation system, surviving pests are drawn to the surface layer of the grain pile, where they are killed by the pest traps, thus preventing the generation of the next generation and achieving pest-free conditions, meeting the national fumigation-free standard requirements.
[0010] Furthermore, the multispectral trapping lamp integrates multiple wavelengths of light and includes a food container. It emits various light waves in conjunction with food bait to trap pests. Utilizing the phototaxis of pests and employing multi-peak spectral mixing technology, a single lamp head integrates multiple light sources to emit various wavelengths of light, resulting in excellent trapping effects on a variety of pests. It quickly kills crawling and flying pests, and the aroma of the food bait further enhances the insect-attracting and killing effect.
[0011] Furthermore, the grain depot is equipped with a grain storage machine, which contains a temperature control system. This system controls the temperature of the surface space within the grain depot, cools the grain pile interior, and regulates the temperature and humidity throughout the entire depot. Surface space temperature control is achieved by lowering the overall temperature of the grain pile surface. Air is drawn from the depot through return air vents, cooled by the internal unit, and then blown into the depot space through jet nozzles, creating a cyclical temperature control process. The machine automatically shuts down when the temperature reaches a set value and automatically restarts when it exceeds the set value. Cooling the grain pile interior involves drawing air from the depot through return air vents, cooling it by the internal unit, and then supplying air to the branch air ducts through the overall air supply ducts. The jet nozzles are closed during this process. The equipment adjusts the airflow and pressure according to the grain pile height to ensure airflow penetrates the grain layer. Working in conjunction with the ventilation system, this allows for continuous temperature control of all parts of the grain pile, especially the side walls which are most prone to temperature rise. Overall temperature and humidity regulation is achieved by ensuring uniform temperature and humidity distribution throughout the entire depot after the cooling function is turned off, through circulation throughout the grain pile.
[0012] Furthermore, the grain depot is also equipped with a temperature sensing system, which includes side wall temperature sensors, warehouse temperature sensors, and warehouse humidity sensors. The side wall temperature sensors are fixedly installed on the side walls of the grain depot. The warehouse temperature and humidity sensors consist of warehouse temperature and humidity sensors and core temperature and humidity measuring cables, used to assist in the analysis and operation of the low-temperature fumigation-free system, and also serve as a weak link and supplement to the grain condition monitoring system of the grain depot.
[0013] Furthermore, the grain depot is equipped with corner air coolers, which include corner ventilation ducts and corner fans. The corner ventilation ducts and fans are connected, and the corner ventilation ducts are located at the corners of the grain depot. The corner air cooler's ventilation arrangement, adapted to the resistance of the grain layer, and its direct source of cold effectively solve the problems of poor ventilation and cooling in corner dead zones.
[0014] Furthermore, the grain depot integrates a control system, which is connected to the ventilation system, pest trapping system, grain storage machine, temperature sensing system, and corner air coolers. The integrated control system mainly consists of a fumigation-free integrated control unit (RTU) and cloud-based remote grain storage assistance software. It is supplemented by multi-parameter grain condition monitoring to primarily support the analysis and operation of the low-temperature fumigation-free system. For example, it uses grain condition analysis to direct corner air coolers to ventilate dead corners, controls the on / off state of the pest trapping system, the start / stop and operating mode selection of the grain storage machine, and the switching of ventilation system ducts.
[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model uses a ventilation system to drive any remaining active pests to the surface through the temperature field and airflow created by ventilation. The pest trapping system then physically kills the pests, thus preventing their reproduction. This not only replaces traditional phosphine fumigation, eliminating the safety risks associated with chemical agents at the source, but also provides the market with green food and ensures the health and safety of warehouse workers. 2. This utility model achieves on-demand ventilation through a ventilation system, avoiding moisture loss in grain caused by ineffective ventilation. Combined with the meticulous humidity control and water-locking function of the grain storage machine, the moisture loss of grain within a rotation cycle is controlled by controlling temperature fluctuations and intermittently adjusting humidity, achieving near-zero natural loss. At the same time, the stable low-temperature environment greatly inhibits the respiration and aging rate of the grain itself, so that when rice and other grains are rotated out of storage after three years, their key freshness indicators such as fatty acid value can still be maintained at the level of new grain. 3. This utility model can maximize the preservation of the edible quality and economic value of grain, thereby extending the storage period of grain, which is measured by quality, by 1-2 years. The extension of the storage period directly reduces the frequency of rotation. For the central or local grain reserve system, this can save tens of millions of yuan in fiscal expenditure, and significantly reduce the financial burden on the state and local governments while ensuring food security. Attached Figure Description
[0016] Figure 1 This is a plan view of the branch ventilation duct; Figure 2 This is a schematic diagram of the arrangement of multispectral trapping lamps; Figure 3 This is a schematic diagram of the structure of a multispectral trapping lamp; Attached diagram labels: 1-Fixed bracket, 2-Branch air duct, 201-Side wall annular air duct, 202-Intermediate branch air duct, 3-Rectifier box, 4-Outdoor control cabinet, 5-Multispectral trap light, 6-Containing tank, 7-Corner cooler. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0018] Example 1, as Figures 1-3 As shown, the present invention discloses a grain depot trapping lamp fixing device and a fumigation-free trapping system, including a grain depot. The grain depot is equipped with a ventilation system and a pest trapping system. A fixed bracket 1 is provided on the surface area of the grain pile in the grain depot. The pest trapping system is installed on the fixed bracket 1. The ventilation system creates airflow to gather pests on the surface area of the grain pile. The pest trapping system is used to emit light waves to trap pests.
[0019] The ventilation system includes branch air ducts 2, a rectifier box 3, and an external control cabinet 4. The branch air ducts 2 are connected to the external control cabinet 4 via the rectifier box 3, and are laid on the ground of the grain depot. Specifically, the branch air ducts 2 form the ground-level cage network of the ventilation system, which is the infrastructure for achieving zoned management and directional air supply. Lay at the bottom of the grain pile, they aim to evenly or as needed deliver treated air into the grain pile, creating a controllable airflow environment inside the grain pile, thereby providing a physical channel for precise temperature control and pest repellency.
[0020] The branch ventilation duct 2 includes a side-wall annular ventilation duct 201 and intermediate branch ventilation ducts 202. The intermediate branch ventilation ducts 202 are arranged at equal intervals, and the side-wall annular ventilation ducts 201 and intermediate branch ventilation ducts 202 are connected to form the ground ventilation area of the grain warehouse. Specifically, this layout divides the entire grain warehouse floor into several characteristic ventilation areas. The side-wall annular ventilation duct 201 is specifically designed to enhance ventilation at the junction of the grain pile and the warehouse wall, which is prone to heat splatter effect and ventilation dead corners. The equally spaced intermediate branch ventilation ducts 202 are responsible for the ventilation of the main grain pile. The two are interconnected to form a complete air network, ensuring full coverage from the center of the warehouse to the edge side walls. This lays the structural foundation for achieving differentiated and precise ventilation management and fundamentally solves the problem of uneven temperature in traditional ventilation systems.
[0021] The rectifier box 3 is equipped with airflow regulating valves for controlling the branch air ducts 2. Specifically, the rectifier box 3 controls the branch air ducts 2 through the airflow regulating valves, achieving the goal of ventilation to specific areas, implementing differentiated and refined management, and eliminating ineffective ventilation. In addition, when some grain is moved in or out of the warehouse, the remaining ventilation ducts can continue to operate, preventing ventilation short circuits and providing more time for ventilation and cooling of the grain pile. In particular, it overcomes the drawback of not being able to ventilate during long periods of grain loading under traditional conditions, creating ventilation conditions for ultimate preservation.
[0022] The pest trapping system includes multiple multispectral trapping lamps 5, which are evenly arranged on the ground of the grain silo. Specifically, the activity and reproduction of pests are reduced in the low-temperature grain storage environment. Through the air and temperature rise channels created by the ventilation system, surviving pests are gathered to the surface layer of the grain pile, where they are killed by the pest traps, thereby preventing the generation of the next generation of pests, achieving pest-free conditions, and meeting the national fumigation-free standard requirements.
[0023] The multispectral trapping lamp 5 integrates light waves of multiple wavelengths and includes a food container 6. The multispectral trapping lamp 5 emits multiple light waves in conjunction with food bait to trap pests. Specifically, utilizing the phototaxis of pests, it employs multi-peak spectral mixing technology, with a single lamp head integrating multiple light sources to emit light waves of various wavelengths. This provides excellent trapping effects on a variety of pests, quickly killing crawling and flying pests. The aroma of the food bait further enhances the insect-attracting and killing effect.
[0024] The grain depot is equipped with a grain storage machine, which contains a temperature control system. This system controls the temperature of the surface space, cools the grain pile interior, and regulates the temperature and humidity throughout the depot. Specifically, surface space temperature control is achieved by lowering the surface temperature of the grain pile. Air is drawn from the depot through return air vents, cooled by the internal unit, and then blown into the depot through jet nozzles, creating a cyclical temperature control process. The machine automatically shuts down when the temperature reaches a set value and automatically restarts when it exceeds the set value. Cooling the grain pile interior involves drawing air from the depot through return air vents, cooling it by the internal unit, and then supplying air to the branch air ducts through the overall air supply ducts. The jet nozzles are closed during this process. The equipment adjusts the airflow and pressure according to the grain pile height to ensure airflow penetrates the grain layer. Working in conjunction with the ventilation system, this allows for continuous temperature control of all parts of the grain pile, especially the side walls which are most prone to temperature rise. Overall temperature and humidity regulation is achieved by ensuring uniform temperature and humidity distribution throughout the depot after the cooling function is turned off, with the grain circulating throughout the entire depot.
[0025] The grain depot is also equipped with a temperature sensing system, which includes side wall temperature sensors, warehouse temperature sensors, and warehouse humidity sensors. Specifically, the side wall temperature sensors are fixedly installed on the side walls of the grain depot. The warehouse temperature and humidity sensors consist of warehouse temperature and humidity sensors and core temperature and humidity measuring cables, used to assist in the analysis and operation of the low-temperature fumigation-free system, and also serve as a weak link and supplement to the grain condition monitoring system of the grain depot.
[0026] The grain depot is equipped with a corner air cooler 7, which includes a corner ventilation duct and a corner fan. The corner ventilation duct and the corner fan are connected, and the corner ventilation duct is located at the corner of the grain depot. Specifically, the corner air cooler 7's ventilation arrangement adapted to the resistance of the grain layer and its direct source of cold effectively solve the problems of poor ventilation and cooling in corner dead zones.
[0027] The grain depot integrates a control system, which is connected to the ventilation system, pest trapping system, grain storage machine, temperature sensing system, and corner air cooler 7. Specifically, the integrated control system mainly consists of a fumigation-free integrated control RTU and cloud-based grain storage remote assistance software. It is supplemented by multi-parameter grain condition monitoring to primarily support the analysis and operation of the low-temperature fumigation-free system. For example, it uses grain condition analysis to direct the corner air cooler 7 to ventilate dead corners, control the on / off state of the pest trapping system, the start / stop and operating mode selection of the grain storage machine, and the switching of ventilation system ducts.
[0028] Example 2, based on Example 1, presents the specific working principle of the grain depot trapping lamp fixing device and the fumigation-free trapping system.
[0029] The specific implementation principle and process are as follows: The control system sets target temperature thresholds for the multi-functional green grain storage machine and the entire system based on preset grain storage processes (such as ≤12℃ low-temperature preservation). When the system detects an increase in the internal temperature of the grain pile, the grain storage machine activates the internal cooling mode. It draws air from the silo, cools it through the internal unit, and then sends the cold air into the branch air duct 2 of the ventilation system via the whole-silo air supply duct. When the temperature of the silo space (surface) rises, the grain storage machine switches to the surface space temperature control mode. It blows the cooled air directly into the silo space through jet nozzles, quickly reducing the silo temperature and thus controlling the surface temperature of the grain pile. After the cold air enters the branch air duct 2, it is precisely distributed to specific ventilation areas according to the instructions of the air volume regulating valve in the rectifier box 3. For example, the air volume is increased in the side wall annular air duct 201 area where the temperature is higher, while the air volume is reduced or stopped in the middle branch air duct 202 area where the temperature has reached the target, achieving on-demand distribution and eliminating ineffective ventilation. Meanwhile, the corner air cooler 7 operates independently, with its dedicated ventilation ducts and fan providing a direct cooling source for the ventilation dead corners (corners), ensuring temperature uniformity in all corners of the grain pile.
[0030] Once the required temperature is reached, the system can shut off the cooling function and activate the grain storage machine's whole-warehouse temperature and humidity equalization mode, i.e., the internal circulation mode, to further equalize the temperature and humidity at various points inside the grain pile, preventing localized condensation or moisture loss. This precise ventilation process creates a slow and stable airflow field inside the grain pile, flowing from bottom to top, from the center to the side walls, and then to the surface. In a sustained low-temperature environment, the activity and reproductive capacity of pests are significantly suppressed. They will instinctively gravitate towards more comfortable, higher-temperature areas. The airflow and temperature field created by the precise ventilation system precisely create a channel that gradually drives away and gathers residual pests scattered throughout the grain pile to the surface area. The multispectral trapping lamp 5, fixedly installed on the surface area of the grain pile, is located precisely at the endpoint where pests are driven and gathered. The control system can activate the multispectral trapping lamp 5 at regular intervals or in real time, depending on the grain condition and season. When the multispectral trapping lamp 5 is working, it emits a variety of specific wavelengths of light that are highly attractive to pests through multi-peak spectrum mixing technology. At the same time, the food bait in its container 6 emits fragrance. By utilizing the phototaxis and chemotaxis of pests, it can efficiently trap and kill crawling and non-crawling pests that gather on the surface.
[0031] The temperature sensing system (including side wall temperature sensors, warehouse temperature and humidity sensors, and core temperature sensing cables) continuously monitors temperature and humidity changes inside the grain pile, on its surface, and within the warehouse environment, transmitting the data to the control system in real time. The control system (including RTU and cloud platform software) analyzes the data and makes intelligent judgments. Through this intelligent closed-loop control, the three core functions of ventilation, cooling, and trapping become an organic whole, dynamically responding to changes in grain conditions, ultimately achieving the effects of low-temperature repelling, surface aggregation, and physical extermination, systematically eradicating the generational reproduction of pests, and achieving the goal of green grain storage with no fumigation, low loss, and high quality.
[0032] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.
Claims
1. A grain depot trapping light fixing device and a fumigation-free trapping system, comprising a grain depot, characterized in that: The grain depot is equipped with a ventilation system and a pest trapping system. A fixed support (1) is provided on the surface area of the grain pile. The pest trapping system is installed on the fixed support (1). The ventilation system creates airflow to gather pests on the surface area of the grain pile. The pest trapping system is used to emit light waves to trap pests.
2. The grain depot trapping lamp fixing device and fumigation-free trapping system according to claim 1, characterized in that: The ventilation system includes a branch air duct (2), a rectifier box (3), and an external control cabinet (4). The branch air duct (2) is connected to the external control cabinet (4) through the rectifier box (3). The branch air duct (2) is laid on the ground of the grain depot.
3. The grain depot trapping lamp fixing device and fumigation-free trapping system according to claim 2, characterized in that: The branch ventilation duct (2) includes a side wall annular ventilation duct (201) and a middle branch ventilation duct (202). The middle branch ventilation duct (202) is arranged at equal intervals. The side wall annular ventilation duct (201) and the middle branch ventilation duct (202) are connected to form the ground ventilation area of the grain warehouse.
4. The grain depot trapping lamp fixing device and fumigation-free trapping system according to claim 2, characterized in that: The rectifier box (3) is equipped with an air volume regulating valve for controlling the branch air duct (2).
5. The grain depot trapping lamp fixing device and fumigation-free trapping system according to claim 1, characterized in that: The pest trapping system includes multiple multispectral trapping lamps (5), which are evenly arranged on the ground of the grain warehouse.
6. The grain depot trapping lamp fixing device and fumigation-free trapping system according to claim 5, characterized in that: The multispectral trapping lamp (5) integrates light waves of multiple wavelengths and is equipped with a food container (6). The multispectral trapping lamp (5) is used to emit multiple light waves and, together with food bait, trap pests.
7. The grain depot trapping lamp fixing device and fumigation-free trapping system according to claim 1, characterized in that: The grain depot is equipped with a grain storage machine, which is equipped with a temperature control system. The temperature control system is used to control the temperature of the surface space inside the grain depot, cool down the grain pile, and regulate the temperature and humidity of the entire depot.
8. The grain depot trapping lamp fixing device and fumigation-free trapping system according to claim 7, characterized in that: The grain depot is also equipped with a temperature sensing system, which includes a side wall temperature sensor, a warehouse temperature sensor, and a warehouse humidity sensor.
9. The grain depot trapping lamp fixing device and fumigation-free trapping system according to claim 8, characterized in that: The grain depot is equipped with a corner air cooler (7), which includes a corner ventilation duct and a corner ventilator. The corner ventilation duct and the corner ventilator are connected, and the corner ventilation duct is located at the corner of the grain depot.
10. The grain depot trapping lamp fixing device and fumigation-free trapping system according to claim 9, characterized in that: The grain depot is equipped with a control system, which is connected to the ventilation system, pest trapping system, grain storage machine, temperature sensing system and corner air cooler (7).