Air-water full-rotation type foliage spray device

A foliar spraying and rotary technology, which is applied in the device, application, and pressure spreading method of liquid fertilizer to capture or kill insects, etc., can solve the problems of insufficient spraying power, small range, etc. Long-distance, low-cost, high-quality spray operation effect

CN105284765AInactive Publication Date: 2016-02-03JISHOU UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-02-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an air-water full-rotation foliage spray device. According to the invention, an external pipe is connected with a compressed air storage tank; a central pipe is connected with a water tank; the external pipe and the central pipe are of a jacket structure; the front end of the central pipe is provided with a liquid spray opening; a liquid in the central pipe is rotationally sprayed into a Laval curved-surface expansion chamber through a spiral flow channel arranged between a swirler and a mandrel; the conical part of the central pipe is coaxially embedded into the external pipe in non-full contact; a draft section in the external pipe undergoes the process of changing from shrinking to enlarging; compressed air flows forward in a conical-cylinder-shaped throttle channel arranged between the external pipe and the central pipe and is also rotationally sprayed into the Laval curved-surface expansion chamber through the spiral flow channel arranged between the swirler and the central pipe; and Laval effect enables an air-water mixture to be transported to a spray pipe located at the front of the liquid spray opening and eventually jetted out at a high speed from an spray opening located at the front of the spray pipe. The device provided by the invention has the advantages of simple structure, reliability, craftiness and low cost and can most effectively transform potential energy of the compressed air into power for jet fly; meanwhile, mixing of air and liquid is uniform, so highly-efficient and high-quality spray operation is realized.
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Description

technical field

[0001] The invention relates to a foliage spraying device, in particular to an air-water full-rotating foliage spraying device utilizing the working principle of a Lafal nozzle. Background technique

[0002] Foliar spraying is an operation method often used in agriculture, forestry and horticulture. Foliar spraying can be used for operations such as eliminating diseases and insect pests and topdressing foliage. Generally speaking, foliar spraying of low crops has relatively low requirements for distance, uniformity and energy loss, but if foliar spraying of tall trees, the requirements for spraying distance, uniformity and energy consumption are relatively low. There are high requirements for speed and energy loss, otherwise it will bring a lot of inconvenience.

[0003] Existing foliage spraying devices have done a good job in spraying uniformity. Atomized nozzles can often make spraying very uniform, but there are also defects such as insufficient spraying...

Examples

Embodiment Construction

[0022] Now in conjunction with accompanying drawing, the present invention is described in further detail.

[0023] Such as figure 1 , figure 2 , image 3 with Figure 4 The air-water full-rotating leaf surface spraying device shown includes an outer pipe 6 and a central pipe 7, the outer pipe 6 is connected to a compressed air storage tank 8, the compressed air storage tank 8 provides pressure gas to enter the outer pipe 6, and the central pipe 7 is connected to the water tank 14. The water tank 14 provides water or medicine to enter the central pipe 7; the outer pipe 6 and the central pipe 7 are jacketed structures, the front end of the central pipe is a liquid nozzle 3, and the liquid in the central pipe 7 passes through the cyclone 19 and the core from the back to the front. The 18 spiral flow channels between the rods are swirled into the Rafal surface expansion chamber 4; the taper part of the central tube 7 is not fully contacted and coaxially embedded in the outer ...