A frost protection system for peony cultivation

Abstract

This utility model belongs to the field of agricultural machinery technology, specifically relating to a frost prevention system for peony planting. It includes a fan positioned to the side or above the planting area; at least one ground-distributed air supply duct laid between the peony planting rows, with air delivery heads on its walls; an air collection mechanism comprising a box with a partition in the middle dividing it into upper and lower air chambers; one end of the box being located at the fan outlet for collecting and guiding part of the airflow blown by the fan; and a flexible connecting pipe, one end of which connects to the outlet at the lower air chamber end of the box, and the other end connecting to the inlet of the ground-distributed air supply duct for transporting the airflow collected at the lower air chamber end of the box to the ground-distributed air supply duct. This utility model can simultaneously create three-dimensional airflow disturbance for the peony plants from above and below, significantly improving the frost prevention effect near the ground and at the rootstock.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to a frost prevention system for peony planting. Background Technology

[0002] Peonies are important ornamental and economic plants, but they are highly susceptible to late frost damage during their early spring budding and leaf unfolding period. Traditional frost prevention methods, such as smoke fumigation and mulching, have limited effectiveness and are inconvenient to implement. Currently, fan-based frost prevention technology is being used in tea gardens and other fields. The principle is to use fans to blow relatively warm air from higher altitudes towards the plant canopy, enhancing near-ground air convection, breaking down the temperature inversion layer, and thus preventing frost damage.

[0003] However, existing fan-based frost prevention systems have the following shortcomings: First, the airflow generated by the fan mainly affects the upper and middle parts of the plant canopy, with weak disturbance effect on cold air masses close to the ground, especially the root and stem areas and low-temperature areas between rows, which are precisely the frost-sensitive zones; second, the airflow distribution is not uniform enough, leaving blind spots in frost prevention. Therefore, existing technologies still have room for improvement in frost prevention for peony cultivation, which requires more comprehensive protection. To address this, this invention provides a frost prevention system for peony cultivation. Utility Model Content

[0004] The purpose of this invention is to provide a frost protection system for peony cultivation, which can simultaneously create three-dimensional airflow disturbances on the peony plant from above and below, significantly improving the frost protection effect near the ground and the root system. It also features a flexible structure that is easy to install and store.

[0005] The specific technical solution adopted by this utility model is as follows: A frost protection system for peony cultivation includes: A fan, which is located to the side or above the planting area, is used to disturb the relatively warm air at high altitude and blow it toward the planting area; At least one ground-distributed air supply duct is laid between the peony planting rows, and multiple upward air supply heads are spaced apart on the duct wall. An air collection mechanism includes a housing with a partition in the middle that divides the housing into upper and lower air chambers. One end of the housing is located at the air outlet of the fan to collect and guide part of the airflow blown by the fan. The upper air chamber of the housing blows air directly into the air. A flexible connecting pipe, one end of which is connected to the air outlet at the lower end of the air chamber of the housing, and the other end of which is connected to the air inlet of the ground distributed air supply duct, is used to transport the airflow collected at the lower end of the air chamber of the housing to the ground distributed air supply duct.

[0006] Preferably, the ground-based distributed air supply duct is a detachable segmented structure, with each segment connected by quick connectors.

[0007] Preferably, one end of the gas collection mechanism is a horn-shaped gas collection hood, with its large-diameter end facing the air outlet direction of the fan. Heating strips are provided in both the upper and lower air chambers of the box, and air guide strips are provided at the ports of the two upper air chambers of the box.

[0008] Preferably, the system includes multiple parallel ground-based distributed air supply ducts, and the flexible connecting pipe is connected to each of the ground-based distributed air supply ducts through a multi-way distributor. A valve is provided at the connection point between the multi-way distributor and each of the ground-based distributed air supply ducts.

[0009] Preferably, the opening direction of the air supply head forms an angle of 0-45 degrees with the vertical direction.

[0010] Preferably, the ground-based distributed air supply duct is wrapped with an insulation layer.

[0011] The technical effects achieved by this utility model are as follows: This novel three-dimensional, layered frost protection method offers comprehensive and significant results. Through the unique design of its air-collecting mechanism and partitions, the airflow from a single fan is intelligently and systematically divided into upper and lower duct airflows. The upper airflow continues to act on the plant canopy, while the lower airflow is precisely delivered to the plant roots and stems most susceptible to frost and the low-temperature zones between rows. This achieves double-layered, three-dimensional protection from both above and below ground, and between the canopy and roots, eliminating the near-ground blind spots of traditional fan-based frost protection and resulting in more comprehensive and reliable protection.

[0012] This invention features highly efficient energy utilization and active heating; the system relies on only one fan, achieving dual-purpose use of airflow through physical diversion, resulting in high energy efficiency. Specifically, heating strips are integrated into the upper and lower air chambers of the air collection mechanism and the ground pipes, which can actively assist in heating the anti-frost airflow in extreme low temperatures or when the airflow itself is insufficient, significantly increasing the temperature of the near-surface airflow and greatly enhancing the system's anti-frost capability and adaptability.

[0013] This invention features flexible and uniform airflow distribution and excellent heat preservation. Through the design of a multi-channel distributor and valves, airflow can be flexibly distributed to multiple ground pipes, and the airflow between rows can be precisely adjusted to ensure uniform frost prevention. The insulation layer wrapped around the ground pipes effectively reduces heat loss of the warm air during transport, ensuring the temperature of the airflow delivered to the rows and improving the overall energy efficiency of the system.

[0014] This utility model features a modular structure, facilitating installation and maintenance. The ground-distributed air supply duct adopts a detachable segmented structure and is connected by quick connectors, making the laying, adjustment, disassembly, and storage of the entire ground system very convenient. It does not affect the daily agricultural operations in the peony field at all, and is especially suitable for seasonal deployment in large-scale, standardized plantations. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a frost-proof system for peony planting according to this utility model; Figure 2 This is a utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a top view schematic diagram of a frost protection system for peony planting according to this utility model; Figure 4 This is a utility model Figure 1 Sectional view at point BB.

[0016] The attached diagram lists the components represented by each number as follows: 1. Fan; 2. Ground-mounted distributed air supply duct; 21. Air supply head; 22. Quick connector; 3. Air collection mechanism; 31. Housing; 32. Partition; 33. Heating strip; 34. Air guide strip; 4. Flexible connecting pipe; 5. Multi-way distributor; 51. Valve; 6. Insulation layer. Detailed Implementation

[0017] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0018] like Figures 1-4 As shown, a frost protection system for peony cultivation includes: Fan 1, which is located to the side or above the planting area, is used to disturb the relatively warm air at high altitude and blow it toward the planting area; At least one ground-distributed air supply duct 2 is laid between peony planting rows, and multiple upward air supply heads 21 are spaced apart on its pipe wall; The air collection mechanism 3 includes a box 31, a partition 32 in the middle of the box 31, the partition 32 divides the box 31 into upper and lower air chambers, one end of the box 31 is set at the air outlet of the fan 1, and is used to collect and guide part of the airflow blown by the fan 1. The upper air chamber end of the box 31 blows air directly into the air. The flexible connecting pipe 4 has one end connected to the air outlet at the lower end of the air chamber of the housing 31 and the other end connected to the air inlet of the ground distributed air supply duct 2, and is used to transport the airflow collected at the lower end of the air chamber of the housing 31 to the ground distributed air supply duct 2.

[0019] like Figures 1-4 As shown, in this invention, through the unique design of the air collection mechanism 3 and its partition 32, the airflow from a single fan 1 is intelligently and systematically divided into upper airflow and lower duct airflow. The upper airflow continues to act on the plant canopy, while the lower airflow is precisely delivered to the plant roots and stems most susceptible to frost and the low-temperature zone between rows, achieving a double-layer three-dimensional protection between the air and the ground, and between the canopy and the roots and stems. This eliminates the near-ground dead zone of traditional fan 1 frost protection, resulting in a more comprehensive and reliable protection effect.

[0020] Preferably, the ground-based distributed air supply duct 2 is a detachable segmented structure, with each segment connected by a quick connector 22.

[0021] The ground-distributed air supply duct 2 adopts a detachable segmented structure and is connected by quick connectors 22, making the laying, adjustment, disassembly and storage of the entire ground system very convenient, without affecting the daily agricultural operations of the peony field. It is especially suitable for seasonal deployment in large-scale and standardized plantations.

[0022] Preferably, one end of the housing 31 of the gas collection mechanism 3 is a horn-shaped gas collection hood, with its large-diameter end facing the air outlet direction of the fan 1. Heating strips 33 are provided in both the upper and lower air chambers of the housing 31, and air guide strips 34 are provided at the ports of the two upper air chambers of the housing 31.

[0023] like Figures 1-4 As shown, in this invention, the system relies on the power of only one fan 1, achieving dual-use of airflow through physical diversion, resulting in high energy efficiency. In particular, heating strips 33 are integrated into the upper and lower air chambers of the air collection mechanism 3 and the ground pipe, which can actively assist in heating the anti-frost airflow when the temperature is extremely low or the airflow itself is insufficient, significantly increasing the temperature of the near-ground airflow and greatly enhancing the system's anti-frost capability and adaptability.

[0024] like Figures 1-4 As shown, preferably, the system includes multiple parallel ground-based distributed air supply ducts 2. The flexible connecting pipe 4 is connected to each of the ground-based distributed air supply ducts 2 through a multi-way distributor 5. A valve 51 is provided at the connection point between the multi-way distributor 5 and each ground-based distributed air supply duct 2. The valve 51 can control the opening and closing of a single branch of the ground-based distributed air supply duct 2. The ground-based distributed air supply duct 2 is wrapped with a thermal insulation layer 6. The opening direction of the air supply head 21 is at an angle of 0-45 degrees to the vertical direction, so that the hot air is better blown towards the peony.

[0025] like Figures 1-4 As shown, the design of the multi-channel distributor 5 and valve 51 allows for flexible distribution of airflow to multiple ground-distributed air supply ducts 2, and precise adjustment of the airflow between rows, ensuring uniform frost protection. The insulation layer 6 wrapped around the outside of the ground-distributed air supply ducts 2 effectively reduces heat loss of the warm air inside the ducts during transport, ensuring the temperature of the airflow delivered between rows and improving the overall energy efficiency of the system.

[0026] like Figures 1-4 As shown, the working principle of this utility model is as follows: When the system is started, the fan 1 blows relatively warm air from high altitudes towards the planting area, forming the first layer of frost protection for the peony canopy. Simultaneously, the high-speed airflow generated by the fan 1 enters the housing 31 of the air collection mechanism 3. The partition 32 inside the housing 31 vertically divides the airflow into upper and lower parts. The upper airflow is directly blown into the air through the end of the upper air chamber, enhancing the turbulence and mixing of the air above. The lower airflow enters the lower air chamber and can be selectively heated by the heating strip 33, then guided to the ground-based distributed air supply duct 2 via the flexible connecting pipe 4. The airflow is distributed through the multi-channel distributor 5, and the flow rate of each duct can be adjusted using the valve 51. Finally, the airflow is ejected from the inclined air supply head 21 on the ground-based distributed air supply duct 2, directly acting on the rootstock of the peony plants and the area between planting rows, powerfully dispersing the cold air in this area and forming a crucial second layer of frost protection near the ground. The insulation layer 6 on the outside of the ground-distributed air supply duct 2 can reduce heat loss during airflow. The airflow generated by the fan 1 is divided into two parts, working together to form a three-dimensional, uniform, and auxiliary heating anti-frost air curtain, protecting the peony from frost damage in all directions.

[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A system for frost protection of Paeonia plantings, characterized in that include: Fan (1), the fan (1) is set on the side or above the planting area to disturb the relatively warm air at high altitude and blow it toward the planting area; At least one ground-distributed air supply duct (2) is laid between peony planting rows, and multiple upward air supply heads (21) are spaced apart on its pipe wall. The gas collection mechanism (3) includes a box (31), and a partition (32) is provided in the middle of the box (31). The partition (32) divides the box (31) into upper and lower air chambers. One end of the box (31) is located at the air outlet of the fan (1) to collect and guide part of the airflow blown by the fan (1). The upper end of the air chamber of the box (31) blows air directly into the air. A flexible connecting pipe (4) is provided, with one end connected to the air outlet at the lower end of the air chamber of the box (31) and the other end connected to the air inlet of the ground distributed air supply pipe (2), for transporting the airflow collected at the lower end of the air chamber of the box (31) to the ground distributed air supply pipe (2).

2. The system according to claim 1, wherein: The ground-based distributed air supply duct (2) is a detachable segmented structure, with each segment connected by a quick connector (22).

3. The system according to claim 1 or 2, wherein: The gas collection mechanism (3) has a horn-shaped gas collection hood at one end of its housing (31), with its large diameter end facing the air outlet direction of the fan (1). Heating strips (33) are provided in both the upper and lower air chambers of the housing (31), and air guide strips (34) are provided at the ports of the upper two air chambers of the housing (31).

4. The system according to claim 1, wherein: The system includes multiple parallel ground-distributed air supply ducts (2), and the flexible connecting pipe (4) is connected to each of the ground-distributed air supply ducts (2) through a multi-way distributor (5). A valve (51) is provided at the connection point between the multi-way distributor (5) and each of the ground-distributed air supply ducts (2).

5. The system according to claim 1, wherein: The opening direction of the air supply head (21) is at an angle of 0-45 degrees to the vertical direction.

6. The frost protection system for peony cultivation according to claim 1, characterized in that: The ground-based distributed air supply duct (2) is wrapped with an insulation layer (6).

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