Steam weeding machine for orchard

Abstract

The invention relates to the technical field of orchard weeding machines, and provides an orchard steam weeding machine which comprises a high-temperature foam nozzle, the high-temperature foam nozzle comprises a first main body, the first main body is provided with a first annular cavity, one end of the first annular cavity is provided with a liquid inlet, and the other end of the first annular cavity is provided with a foam outlet; a plurality of foam outlets are formed in the first annular cavity, the foam outlets are circumferentially arranged in multiple circles, the first annular cavity is further provided with an air inlet, the air inlet is located beside the foam outlets, and the air inlet obliquely blows towards the foam outlets. The first body is further provided with a second annular cavity, the second annular cavity is located on the periphery of the first annular cavity and communicated with the air inlet, and the second annular cavity is provided with an air inlet. According to the technical scheme, the technical problem that an orchard steam weeding machine in the related technology is high in cost and energy consumption is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of orchard weeders, and in particular to an orchard steam weeder. Background Art

[0002] Orchard steam weeders are agricultural machines that use high-temperature steam to eliminate weeds. They are primarily used for weed management in crop-growing areas such as orchards, vineyards, and tea plantations. Compared to traditional chemical herbicides or mechanical weed control methods, steam weeders offer a more environmentally friendly and sustainable weed control solution, making them particularly suitable for organic farming and agricultural production methods that prioritize ecological balance. Working Principle: A steam weeder uses a heating system to convert water into high-temperature steam. Steam temperatures typically reach over 100°C, and can even reach as high as 150°C to 200°C. When this high-temperature steam is sprayed directly onto weeds, the high temperature rapidly destroys the weed's cell structure, causing protein denaturation and cell membrane rupture, resulting in dehydration and death. Due to the steam's penetrating and instantaneous action, it effectively kills weeds from the aboveground parts to their roots, achieving effective weed control. Despite their many advantages, steam weeders also face challenges in practical application, including high operating costs, particularly energy consumption. Therefore, a low-cost and energy-efficient orchard steam weeder is urgently needed. Summary of the Invention

[0003] The present invention provides an orchard steam weeder, which solves the technical problems of high cost and high energy consumption of orchard steam weeders in the related art.

[0004] The technical solutions of the present invention are as follows: An orchard steam weeder includes a high-temperature foam nozzle, which includes: The first body comprises a first annular cavity, wherein the first annular cavity comprises a liquid inlet at one end and a foam outlet at the other end. The first annular cavity further comprises an air inlet, wherein the air inlet is located beside the foam outlet and obliquely blows toward the foam outlet.

[0005] As a further technical solution, the first main body further has a second annular cavity, which is located outside the first annular cavity and is connected to the air inlet, and the second annular cavity has an air inlet.

[0006] As a further technical solution, the high-temperature foam nozzle also includes a one-way valve, which is arranged at the air inlet and is oriented so that the second annular cavity can enter the first annular cavity, but the first annular cavity cannot enter the second annular cavity.

[0007] As a further technical solution, the first main body further has a combustion chamber, the combustion chamber and the second annular chamber are respectively located on the inner and outer sides of the first annular chamber, and the combustion chamber, the first annular chamber and the second annular chamber are coaxially arranged.

[0008] As a further technical solution, the first main body also has a foam spraying chamber, the foam outlet leads to the foam spraying chamber, the foam spraying chamber has a foam convergence port, the combustion chamber and the foam spraying chamber are arranged in sequence along the axial direction of the first main body, and the combustion chamber and the foam convergence port are respectively located on both sides of the foam spraying chamber.

[0009] As a further technical solution, the inner wall of the combustion chamber has heat exchange fins, and the high-temperature foam nozzle also includes: A burner is provided in the combustion chamber and has a flame injection port, the flame injection port is oriented in the opposite direction to the foam convergence port, and the burner also has a gas inlet and an air inlet.

[0010] As a further technical solution, it also includes a blower, the blower being in communication with the air inlet, The blower is also connected to the pressure regulating valve, and the pressure regulating valve is connected to the air inlet. The foaming liquid tank and the liquid delivery pump are connected in sequence to the liquid inlet. A gas tank is connected to the gas inlet.

[0011] As a further technical solution, the first annular cavity is divided into a heating section and a foaming section. The heating section is located around the combustion cavity, and the foaming section is located around the foam spraying cavity. The heating section is cylindrical, and the foaming section is a reciprocating zigzag line type, so that the inner wall of the foam spraying cavity is formed with a plurality of annular grooves, and the plurality of annular grooves are arranged in sequence along the axial direction of the first annular cavity.

[0012] As a further technical solution, each of the annular grooves is provided with a circle of foam outlets, the foam outlets are conical, the cross-section of the annular groove is triangular, and the foam outlets are located on the groove wall of the annular groove facing the foam convergence port, so that the foam outlets face the foam convergence port.

[0013] As a further technical solution, it also includes A mobile platform having walking wheels, the blower, the foaming liquid tank, the liquid delivery pump and the gas tank are all arranged on the mobile platform. A foam spraying cover is arranged on the mobile platform, the foam spraying cover has a foam spraying port, the foam spraying port is used to spray towards weeds, and the high-temperature foam nozzle is arranged in the foam spraying cover.

[0014] The working principle and beneficial effects of the present invention are: In the present invention, a first body is designed as the main structure of the high-temperature foam nozzle, which carries other key components and is designed to accommodate and integrate all the functions of the nozzle. The first annular cavity is located inside the first body and is designed in an annular shape. It is used to mix the foaming liquid and gas to create an initial environment for high-temperature foam. It has a liquid inlet at one end, a foam outlet at the other end, and an air inlet in the middle. The liquid inlet is used to introduce the foaming liquid, which can be a mixture of water and a foaming agent. It is the starting point of the foam generation process. The foam outlet is located at the other end of the first annular cavity and is designed to be arranged in multiple circles to ensure that the high-temperature foam can be evenly distributed, thereby improving the coverage and weed control efficiency. The air inlet is located next to the foam outlet and is used to introduce compressed air to mix with the foaming liquid in the first annular cavity to form high-temperature foam. The air inlet and the foam outlet are respectively located on the inner and outer sides of the first annular cavity. This design helps to fully mix the foaming liquid and gas, while ensuring that the foam formation and discharge processes do not interfere with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0016] Figure 1 This is a schematic diagram of the external structure of the high-temperature foam nozzle of the present invention; Figure 2 This is a schematic diagram of the top view of the high-temperature foam nozzle of the present invention; Figure 3 for Figure 2 AA cross-sectional structural diagram; Figure 4 It is a schematic diagram of the structure of the present invention; Figure 5 for Figure 4 Middle B is a schematic diagram of a partially enlarged structure; In the figure: high-temperature foam nozzle-1, first body-101, first annular cavity-102, liquid inlet-103, foam outlet-104, air inlet-105, second annular cavity-106, air inlet-107, one-way valve-108, combustion chamber-109, foam spraying chamber-110, foam convergence port-111, heat exchange fin-112, burner-113, flame injection port-114, gas inlet-115, air inlet-116, heating section-117, foam outlet section-118, annular groove-119, blower-2, pressure regulating valve-3, foaming liquid tank-4, liquid delivery pump-5, gas tank-6, mobile platform-7, foam spraying hood-8, foam spraying port-801. DETAILED DESCRIPTION

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other embodiments can be obtained based on these drawings without inventive work.

[0018] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0019] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0020] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0021] Reference Figures 1 to 5The present invention proposes an orchard steam weeder, including a high-temperature foam nozzle 1. The high-temperature foam nozzle 1 includes a first main body 101. The first main body 101 has a first annular cavity 102. The first annular cavity 102 has a liquid inlet 103 at one end and a foam outlet 104 at the other end. The first annular cavity 102 also has an air inlet 105. The air inlet 105 is located next to the foam outlet 104 and blows obliquely toward the foam outlet 104.

[0022] In this embodiment, in order to reduce the cost and energy consumption of the orchard steam weeder, a first main body 101 is designed as the main structure of the high-temperature foam nozzle, which carries other components and is designed to accommodate and integrate all the functions of the nozzle. The first annular cavity 102 is located inside the first main body 101 and is designed in an annular shape. It is used to mix the foaming liquid and gas to create an initial environment for high-temperature foam. It has a liquid inlet 103 at one end, a foam outlet 104 at the other end, and an air inlet 105 in the middle. The liquid inlet 103 is used to introduce the foaming liquid, which can be a mixture of water and foaming agent. It is the starting point of the foam generation process. The foam outlet 104 is located at the other end of the first annular cavity 102 and is designed to be arranged in multiple circles to ensure that the high-temperature foam can be evenly distributed, thereby improving the coverage and weeding efficiency. The air inlet 105 is located next to the foam outlet 104 and is used to introduce compressed air to mix with the foaming liquid in the first annular cavity 102 to form high-temperature foam. The air inlet 105 is tilted to blow toward the foam outlet 104 . This design helps to fully mix the foaming liquid and the gas, while ensuring that the foam formation and discharge processes do not interfere with each other.

[0023] The operating principle of the high-temperature foam nozzle 1 is based on the mixing of a foaming liquid and gas, and the formation of foam. When heated foaming liquid enters the first annular chamber 102 through the liquid inlet 103 and compressed air is introduced through the air inlet 105, the two mix within the first annular chamber 102. Due to the structure of the first annular chamber 102 and the relative positioning of the air inlet 105 and the foam outlet 104, the heated foaming liquid and gas mix to form high-temperature foam. This high-temperature foam is then evenly sprayed out through the foam outlet 104, covering the target area and achieving the desired weed control effect.

[0024] In this embodiment, the foam outlet 104 can also be designed as a multi-circular arrangement, thereby ensuring uniform distribution of the high-temperature foam and improving the weed control effect. The high-temperature foam can quickly destroy the cell structure of weeds, achieving the purpose of weed control, while having minimal impact on the soil and beneficial microorganisms. Using physical methods to control weeds avoids the environmental pollution and potential harm to human health caused by chemical herbicides. The high-temperature foam nozzle 1 is a key technology in orchard steam weeders. Its design and operating principle embody the concept of efficient, environmentally friendly, and safe weed control.

[0025] Furthermore, the first body 101 further has a second annular cavity 106 . The second annular cavity 106 is located outside the first annular cavity 102 and is communicated with the air inlet 105 . The second annular cavity 106 has an air inlet 107 .

[0026] In this embodiment, a second annular cavity 106 is designed, which is located on the periphery of the first annular cavity 102 and surrounds the first annular cavity 102 to form a double-layer structure. This design can increase the heat capacity of the nozzle and maintain a high temperature state for a longer period of time, thereby improving the weeding efficiency. The second annular cavity 106 is directly connected to the air inlet 105, and the compressed air sent from the second annular cavity 106 can be sent into the first annular cavity 102 through the air inlet 105. There are a large number of air inlets 105, which increase the air flow path and uniform distribution, and help improve the mixing efficiency of air and liquid. The air inlet 107 is used to introduce external compressed air, which can adjust the pressure in the second annular cavity 106 and help the formation and stabilization of foam.

[0027] In this embodiment, the high-temperature foam nozzle 1 of the orchard steam weeder is optimized by adding a second annular cavity 106 and an air inlet 107. The air flow path of the air inlet 107 and the second annular cavity 106 can improve the formation and stability of the foam. The rational air supply and pressure regulation mechanism of the air inlet 107 can reduce equipment failures and improve operational safety. In summary, these newly added technical features improve the high-temperature foam nozzle 1 of the orchard steam weeder in terms of weeding efficiency, foam quality, and equipment reliability, making it a more efficient and environmentally friendly orchard management tool.

[0028] Furthermore, the high-temperature foam nozzle 1 also includes a one-way valve 108 , which is arranged at the air inlet 105 and is oriented so that the second annular cavity 106 can enter the first annular cavity 102 but the first annular cavity 102 cannot enter the second annular cavity 106 .

[0029] In this embodiment, the one-way valve 108 in the high-temperature foam nozzle 1 of the orchard steam weeder further optimizes the gas flow path, ensuring system safety and efficiency. One-way valve 108 is located at the air inlet 105, between the second annular chamber 106 and the first annular chamber 102. The one-way valve 108 is designed to only allow gas to flow from the second annular chamber 106 to the first annular chamber 102, preventing reverse flow—that is, preventing gas from flowing back from the first annular chamber 102 to the second annular chamber 106.

[0030] In this embodiment, the provision of a one-way valve 108 prevents foam or liquid from flowing back from the first annular chamber 102 to the second annular chamber 106, thereby avoiding pressure fluctuations and potential blockages within the system. By restricting the direction of gas flow, the one-way valve 108 helps maintain an appropriate pressure differential between the two annular chambers, which promotes stable foam formation and efficient spraying. Preventing backflow prevents damage to the equipment caused by sudden reverse flow of high-pressure gas, reduces the occurrence of accidents, and improves overall operational safety. The one-way flow ensures that the gas and liquid are fully mixed within the first annular chamber 102, forming high-quality, high-temperature foam and enhancing weed control effectiveness. The inclusion of the one-way valve 108 is a significant improvement in the design of the high-temperature foam nozzle 1 for the orchard steam weeder. It not only enhances system stability and safety, but also optimizes the foam generation process, thereby improving the efficiency and effectiveness of the weeder. By precisely controlling the gas flow, the one-way valve 108 ensures that the high-temperature foam nozzle 1 can continuously and stably produce high-efficiency, high-temperature foam, meeting the stringent requirements of orchard weed control. This further improves the efficiency of high-temperature foam production.

[0031] Furthermore, the first main body 101 also has a combustion chamber 109. The combustion chamber 109 and the second annular chamber 106 are respectively located on the inner and outer sides of the first annular chamber 102, and the combustion chamber 109, the first annular chamber 102 and the second annular chamber 106 are coaxially arranged.

[0032] In this embodiment, a key combustion chamber 109 is designed in the first body 101, as well as a first annular chamber 102 and a second annular chamber 106 that work together. The coaxial layout and relative positional relationship of these components can better achieve the manufacture of high-temperature foam. The combustion chamber 109 is located on the inner side of the first annular chamber 102, while the second annular chamber 106 is located on the outer side of the first annular chamber 102. The combustion chamber 109 is coaxially arranged with the two annular chambers to form a concentric structure. The combustion chamber 109 is the core part of the high-temperature heat source used to heat and generate steam. Through the fuel supply system and ignition device, continuous heat output is ensured. The first annular cavity 102 is the part that directly generates high-temperature steam. The first annular cavity 102 is responsible for mixing the foaming liquid with air, which is then quickly heated by the combustion cavity 109 arranged inside it, thereby forming high-temperature foam or aerosol for weeding operations. Compared with the prior art, the foaming liquid is heated to a high temperature before being sprayed out for foaming, which has higher thermal efficiency and avoids the heat loss caused by the foaming liquid being heated to a high temperature in the tank first. The foaming liquid is directly heated by the combustion cavity 109 when being sprayed out, so that the production of high-temperature foam only requires less heat, which greatly reduces energy consumption.

[0033] In this embodiment, the coaxial layout of the combustion chamber 109, the first annular cavity 102 and the second annular cavity 106 enables the heat generated by the combustion chamber 109 to be more effectively transferred to the first annular cavity 102, reducing heat loss and improving energy conversion efficiency. This compact structural design saves space, allowing the weeder to be designed to be lighter and easier to move and operate in the orchard. The coaxial configuration helps to maintain a stable heat distribution and airflow, ensuring consistency and reliability during the steam weeding process. Since all key components are arranged along the same axis, this helps to simplify the assembly of the equipment and subsequent maintenance work. In summary, the coaxial layout design of the combustion chamber 109 and the first annular cavity 102 and the second annular cavity 106 in the orchard steam weeder is one of the key technologies to achieve efficient, energy-saving and stable weeding. This layout not only optimizes the use of thermal energy, but also ensures the portability and easy maintenance of the equipment.

[0034] Furthermore, the first main body 101 also has a foam spray chamber 110, the foam outlet 104 leads to the foam spray chamber 110, the foam spray chamber 110 has a foam convergence port 111, the combustion chamber 109 and the foam spray chamber 110 are arranged in sequence along the axial direction of the first main body 101, and the combustion chamber 109 and the foam convergence port 111 are respectively located on both sides of the foam spray chamber 110.

[0035] In this embodiment, a foam spray chamber 110 is also designed on the first body 101. The foam spray chamber 110 is located inside the first body 101, connected to the foam outlet 104, and receives high-temperature foam from the first annular cavity 102. The function of the foam spray chamber 110 is to collect and converge the high-temperature foam sprayed by the foam outlet 104 to prepare for the final spraying of the foam. It provides a space for the foam to be concentrated and adjusted in shape to ensure that the foam has an ideal coverage area and density when sprayed. The foam convergence port 111 is a part of the foam spray chamber 110 and is designed as an outlet for foam spraying. It is located at one end of the foam spray chamber 110, facing the target weeding area. The function of the foam convergence port 111 is to spray the foam gathered in the foam spray chamber 110 in a predetermined manner to cover the target area. Its design may include optimization of shape, size and spray angle to achieve the best foam distribution and weeding effect.

[0036] In this embodiment, the combustion chamber 109 and the foam spray chamber 110 are arranged in sequence along the axial direction of the first main body 101, and they form a straight line in the longitudinal direction of the device. This layout ensures the continuity of the heat energy generated by the combustion chamber 109 to the high-temperature foam sprayed from the foam spray chamber 110. The combustion chamber 109 is located on one side of the foam spray chamber 110, while the foam convergence port 111 is located on the other side. This ensures that the heating of the first annular chamber 102 by the combustion chamber 109 will not have any effect on the high-temperature foam sprayed from the foam convergence port 111 of the foam spray chamber 110, making the structure of the high-temperature foam nozzle 1 more compact. It also ensures the efficient transfer of heat energy from the combustion chamber 109 to the foam spray chamber 110, reducing energy loss. The design of the foam convergence port 111 optimizes the foam spray pattern, ensures that the high-temperature foam can evenly and densely cover the target area, improves the weeding efficiency, and realizes efficient and precise weeding of the equipment. It not only optimizes the utilization of heat energy, but also ensures the uniformity and coverage of the foam spray, thereby improving the overall efficiency of the orchard weeding operation.

[0037] Furthermore, the inner wall of the combustion chamber 109 has heat exchange fins 112, and the high-temperature foam nozzle 1 also includes a burner 113, which is arranged in the combustion chamber 109. The burner 113 has a flame injection port 114, and the flame injection port 114 is facing opposite to the foam convergence port 111. The burner 113 also has a gas inlet 115 and an air inlet 116.

[0038] In this embodiment, the heat exchange fins 112, burner 113, flame jet port 114, gas inlet 115, and air inlet 116 work together to ensure the effective generation and injection of high-temperature foam. The heat exchange fins 112 increase the surface area of ​​the inner wall of the combustion chamber 109, thereby improving the heat exchange efficiency. When the high-temperature gas generated by the burner 113 flows through, more heat can be transferred to the foaming liquid in the first annular chamber 102, ensuring that the foam reaches a sufficiently high temperature before injection. The burner 113 is arranged in the combustion chamber 109 and is the core component for generating high-temperature flames. It must meet the requirements of flame stability and thermal efficiency. The direction of the flame jet port 114 is opposite to that of the foam convergence port 111. This design ensures that the heat of the flame can be fully transferred to the foaming liquid in the first annular chamber 102, and can act on a longer length of the first annular chamber 102, thereby improving heating efficiency and ensuring safety.

[0039] In this embodiment, the gas inlet 115 is used to introduce combustible gas, such as natural gas or propane, while the air inlet 116 is responsible for introducing oxygen or air. The mixture of these two gases ignites at the burner 113, generating a high-temperature flame that provides the necessary heat source for foam heating. The gas and air mix and ignite at the burner 113, generating a high-temperature flame. The flame enters the combustion chamber 109 through the flame jet port 114, where the heat exchange fins 112 enhance the efficiency of heat energy transfer. The high-temperature gas heats the foaming liquid in the first annular chamber 102, bringing it to a suitable temperature and state for spraying. The heated foam is ejected through the foam convergence port 111, covering the target weeding area. In summary, the high-temperature foam nozzle 1 of the orchard steam weeder achieves effective foam heating and spraying through the sophisticated combustion chamber 109 design and thermal energy management. The coordinated operation of the heat exchange fins 112, burner 113, flame jet port 114, gas inlet 115, and air inlet 116 ensures high performance in weeding operations.

[0040] Furthermore, it also includes a blower 2, which is connected to the air inlet 107. The blower 2 is also connected to the pressure regulating valve 3, and the pressure regulating valve 3 is connected to the air inlet 116. The foaming liquid tank 4, the liquid delivery pump 5 and the liquid inlet 103 are connected in sequence, and the gas tank 6 is connected to the gas inlet 115.

[0041] In this embodiment, auxiliary systems and components are also equipped to optimize overall performance, improve safety, and ensure ease of operation. Specifically, this includes an air blower 2, a pressure regulating valve 3, a foaming liquid tank 4, a liquid delivery pump 5, and a gas tank 6. The main task of the air blower 2 is to provide compressed air. It is connected to the air inlet 107 and delivers high-pressure air to the air inlet 107 to convert the foaming liquid in the first annular cavity 102 into foam. At the same time, the air blower 2 also provides air or oxygen to the air inlet 116 of the burner 113 to achieve combustion of the burner 113. The pressure regulating valve 3 is located between the air blower 2 and the air inlet 116 and is used to adjust the air pressure entering the burner 113. By controlling the air flow, the pressure regulating valve 3 can adjust the combustion efficiency, ensure the stability of the flame and the controllability of the thermal output, which is crucial for maintaining the heating temperature of the foam and the effect of steam weed control.

[0042] In this embodiment, the foaming liquid tank 4 stores a liquid for generating foam, namely, the foaming liquid, which is delivered to the liquid inlet 103 by the liquid delivery pump 5. The foaming liquid is mixed with air in the first annular chamber 102 and passes through the foam outlet 104 to the foam spray chamber 110 to form high-temperature foam. This process ensures the uniformity and stability of the foam, allowing the weed remover to effectively cover and treat the target area. The gas tank 6 stores a combustible gas, such as natural gas or propane, and is directly connected to the gas inlet 115. The gas is the fuel source for generating the high-temperature flame. By precisely controlling the gas supply, the combustion intensity can be adjusted, thereby affecting the degree of heating of the foam and the effectiveness of the steam weed control.

[0043] In this embodiment, the blower 2, pressure regulating valve 3, foaming liquid tank 4, liquid delivery pump 5, and gas tank 6 constitute a complete auxiliary system, and the coordinated work among them ensures the efficient operation of the weeder. By finely adjusting the parameters of each component, it is possible to achieve precise control of the flame temperature, foam quality, and weeding effect, meeting the weeding needs of different orchard environments and crop types. In short, the auxiliary systems and components of the orchard steam weeder are exquisitely designed, not only improving the efficiency and effect of weeding, but also reflecting the importance of environmental protection and operational safety. Through the coordination of these auxiliary systems, the weeder can complete the weeding operation in the orchard in a more environmentally friendly and economical way, reducing the use of chemical herbicides and promoting the sustainable development of agriculture.

[0044] Furthermore, the first annular cavity 102 is divided into a heating section 117 and a foaming section 118. The heating section 117 is located around the combustion cavity 109, and the foaming section 118 is located around the foam spraying cavity 110. The heating section 117 is cylindrical, and the foaming section 118 is a reciprocating broken line type, so that the inner wall of the foam spraying cavity 110 is formed with a plurality of annular grooves 119, and the plurality of annular grooves 119 are arranged in sequence along the axial direction of the first annular cavity 102.

[0045] In this embodiment, when we deeply understand the innovative design of the orchard steam weeder, we find that the structure of its first annular cavity 102 is particularly noteworthy because its design directly affects the heating efficiency and distribution uniformity of the foam. Specifically, the first annular cavity 102 is designed to be divided into a heating section 117 and a foaming section 118. These two parts work together to promote the heating and injection process of the foam. The heating section 117 surrounds the combustion chamber 109 and adopts a cylindrical design. This structure ensures that the heat from the combustion chamber 109 can be evenly transferred to the foam, thereby accelerating the heating process of the foam. The cylindrical design helps to maximize the heat exchange area and improve the heat conduction efficiency. The foaming section 118 surrounds the periphery of the foam spraying cavity 110. Unlike traditional straight line or simple curve designs, it adopts a reciprocating broken line structure. This unique geometric shape forms a plurality of annular grooves 119 on the inner wall of the foam spraying cavity 110, which are arranged in sequence along the axial direction of the first annular cavity 102. The reciprocating, zigzag-shaped foaming section 118 increases the foam's path before ejection, improving the efficiency of high-temperature foam production. After being heated, the foam undergoes multiple turns as it passes through the annular groove 119. This design helps distribute the foam more evenly across the ejection area, enhancing the weed control effect. Precisely designing the size and arrangement of the annular grooves 119 allows for control over the shape and size of the foam, which is crucial for optimizing foam coverage and increasing the efficiency of the steam weed remover.

[0046] In this embodiment, the optimized structure of the heating section 117 and foaming section 118 of the first annular chamber 102 significantly enhances the performance of the orchard steam weeder. This not only accelerates the heating of the foam, ensuring uniform heating and evaporation, but also improves the foam spray pattern through the design of the annular groove 119, enabling the weeder to achieve more effective and uniform weeding in a shorter time. This innovative structural design is one of the key factors in achieving efficient and environmentally friendly orchard management.

[0047] Furthermore, each annular groove 119 is provided with a circle of foam outlets 104 . The foam outlets 104 are conical, and the cross-section of the annular groove 119 is triangular. The foam outlets 104 are located on the groove wall of the annular groove 119 facing the foam convergence port 111 , so that the foam outlets 104 face the foam convergence port 111 .

[0048] In this embodiment, as we delve deeper into the details of the orchard steam weeder, we note the unique design of the annular groove 119 within the first annular chamber 102 and the foam outlet 104. These features are intended to optimize the foam generation, heating, and spraying processes, achieving efficient and uniform weed control. The conical foam outlets 104 are unique in that each foam outlet 104 is designed to be tapered, with the outlet diameter gradually decreasing from the inside of the foam spray chamber 110 to the outside. This design helps improve the velocity and directionality of the foam spray, ensuring that the foam is sprayed at a high initial velocity and along a stable trajectory.

[0049] In the present embodiment, the foam outlet 104 is located on the groove wall of each annular groove 119 facing the foam convergence port 111, and the cross-section of the annular groove 119 is designed to be triangular. Such a layout enables the foam to be sprayed toward the foam convergence port 111 along the guidance of the annular groove 119 after being heated by the heating section 117. The annular groove 119 provides a guide path for the foam from the heating section 117 to the foam outlet section 118. By setting the foam outlet 104 at a specific position of the annular groove 119, it is ensured that the foam has good speed, direction and coverage when spraying, thereby improving the weeding efficiency. The design of the annular groove 119 ensures that the foam collides in multiple directions after heating, thereby improving the foaming effect and ensuring the quality of the foam and the weeding effect. In short, the innovative design of the foam outlet 104 and the annular groove 119 of the orchard steam weeder is the key to its high efficiency performance. The conical foam outlet 104 combined with the triangular cross-section of the annular groove 119 optimizes the foam formation and injection process, and also ensures that the foam can cover the target area in the best state during injection, thereby improving the operating efficiency and environmental performance of the lawn mower.

[0050] Furthermore, it also includes a mobile platform 7, the mobile platform 7 has walking wheels, the air blower 2, the foaming liquid tank 4, the liquid delivery pump 5 and the gas tank 6 are all arranged on the mobile platform 7, the foam spraying cover 8 is arranged on the mobile platform 7, the foam spraying cover 8 has a foam spraying port 801, the foam spraying port 801 is used to face weeds, and the high-temperature foam nozzle 1 is arranged in the foam spraying cover 8.

[0051] In this embodiment, the mobile platform of the orchard steam weeder is integrated with the spray system. When further exploring the structure of the orchard steam weeder, we paid attention to the integrated characteristics of the mobile platform 7 and the foam spray hood 8 connected to it in its overall design. This is to ensure that the equipment can operate efficiently and flexibly in the orchard environment. The following is a detailed analysis of these components and their functions. The mobile platform 7 is the basic frame of the weeder. It is equipped with running wheels that allow the machine to move stably on different terrains. Key components such as the air blower 2, foaming liquid tank 4, liquid delivery pump 5 and gas tank 6 are all installed on the mobile platform 7, forming a compact and self-sufficient operating unit. The foam spray hood 8 guides and transports the heated foam to the target area. A foam spray outlet 801 is provided at the end of the foam spray hood 8, which points directly to the area to be weeded, ensuring that the foam can be sprayed accurately on the weeds. The high-temperature foam nozzle 1 is cleverly placed in the foam spraying cover 8, which allows the foam output from the foaming liquid tank 4 to directly enter the nozzle, complete the heating process here, and finally be sprayed into the foam spraying cover 8 in a high-temperature state.

[0052] In this embodiment, the various components on the mobile platform 7 work together. The air blower 2 provides the necessary pressure, the foaming liquid tank 4 stores the foam raw materials, the liquid delivery pump 5 is responsible for the material transmission, and the gas tank 6 provides energy for the heating process. The foam spray hood 8 serves as a bridge to the final spraying point. The foam spray hood 8 ensures the smooth transmission and precise spraying of the foam. The design of the foam spray port 801 enables the device to accurately weed specific areas. The use of the mobile platform 7 greatly enhances the maneuverability of the weeder, allowing the device to be moved to any location in the orchard. By adjusting the direction of the foam spray port 801, targeted and precise spraying can be achieved, reducing the impact on the surrounding environment and improving the weeding efficiency. In summary, the integrated design of the mobile platform 7 and the foam spray hood 8 of the orchard steam weeder not only ensures the high flexibility and convenience of the equipment, but also achieves accurate and efficient weeding effects. This design fully reflects the advanced concept of modern agricultural machinery in improving work efficiency, reducing the use of chemical pesticides, and protecting the ecological environment.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Orchard steam weeder, characterized by: The invention comprises a high-temperature foam nozzle (1), wherein the high-temperature foam nozzle (1) comprises: A first main body (101) is provided with a first annular cavity (102), one end of the first annular cavity (102) is provided with a liquid inlet (103), and the other end of the first annular cavity (102) is provided with a foam outlet (104), and the first annular cavity (102) is provided with an air inlet (105), the air inlet (105) is located next to the foam outlet (104), and the air inlet (105) is inclined to blow toward the foam outlet (104).

2. The orchard steam weeder according to claim 1, characterized in that: The first main body (101) further has a second annular cavity (106), the second annular cavity (106) is located outside the first annular cavity (102) and is in communication with the air inlet (105), and the second annular cavity (106) has an air inlet (107).

3. The orchard steam weeder according to claim 2, characterized in that: The high-temperature foam nozzle (1) further comprises a one-way valve (108), which is arranged at the air inlet (105) and is oriented so that gas can enter the first annular cavity (102) from the second annular cavity (106) but cannot enter the second annular cavity (106) from the first annular cavity (102).

4. The orchard steam weeder according to claim 3, characterized in that: The first main body (101) further comprises a combustion chamber (109), wherein the combustion chamber (109) and the second annular chamber (106) are respectively located on the inner and outer sides of the first annular chamber (102), and the combustion chamber (109), the first annular chamber (102) and the second annular chamber (106) are coaxially arranged.

5. The orchard steam weeder according to claim 4, characterized in that: The first main body (101) further comprises a foam spraying chamber (110), the foam outlet (104) leads to the foam spraying chamber (110), the foam spraying chamber (110) comprises a foam convergence port (111), the combustion chamber (109) and the foam spraying chamber (110) are arranged in sequence along the axial direction of the first main body (101), and the combustion chamber (109) and the foam convergence port (111) are respectively located on both sides of the foam spraying chamber (110).

6. The orchard steam weeder according to claim 5, characterized in that: The inner wall of the combustion chamber (109) is provided with heat exchange fins (112), and the high-temperature foam nozzle (1) further comprises: A burner (113) is provided in the combustion chamber (109), the burner (113) having a flame injection port (114), the flame injection port (114) facing in the opposite direction to the foam convergence port (111), and the burner (113) also having a gas inlet (115) and an air inlet (116).

7. The orchard steam weeder according to claim 6, characterized in that: Also includes A blower (2), the blower (2) being in communication with the air inlet (107), The blower (2) is also connected to the pressure regulating valve (3), and the pressure regulating valve (3) is in communication with the air inlet (116). A foaming liquid tank (4) and a liquid delivery pump (5), wherein the foaming liquid tank (4), the liquid delivery pump (5) and the liquid inlet (103) are connected in sequence. A gas tank (6), the gas tank (6) being connected to the gas inlet (115).

8. The orchard steam weeder according to claim 7, characterized in that: The first annular cavity (102) is divided into a heating section (117) and a foaming section (118), wherein the heating section (117) is located around the combustion cavity (109), and the foaming section (118) is located around the foam spraying cavity (110), wherein the heating section (117) is cylindrical, and the foaming section (118) is a reciprocating zigzag line, so that a plurality of annular grooves (119) are formed on the inner wall of the foam spraying cavity (110), and the plurality of annular grooves (119) are arranged in sequence along the axial direction of the first annular cavity (102).

9. The orchard steam weeder according to claim 8, characterized in that: Each of the annular grooves (119) is provided with a circle of foam outlets (104), the foam outlets (104) are conical, the cross-section of the annular groove (119) is triangular, and the foam outlets (104) are located on the groove wall of the annular groove (119) facing the foam convergence port (111), so that the foam outlets (104) face the foam convergence port (111).

10. The orchard steam weeder according to claim 9, characterized in that: Also includes A mobile platform (7), wherein the mobile platform (7) has running wheels, and the blower (2), the foaming liquid tank (4), the liquid delivery pump (5) and the gas tank (6) are all arranged on the mobile platform (7). A foam spraying hood (8) is provided on the mobile platform (7), the foam spraying hood (8) has a foam spraying port (801), the foam spraying port (801) is used to be directed toward weeds, and the high-temperature foam spraying head (1) is provided in the foam spraying hood (8).

Images