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Composite bionic surface jet nozzle

A jet nozzle, super-hydrophobic surface technology, applied in the direction of spraying device, spraying device, etc., can solve the problem that the effect of drag reduction needs to be further improved, and achieve the effect of reducing drag and increasing the distance of jet flow

Inactive Publication Date: 2018-07-31
YANSHAN UNIV
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The application of the above-mentioned bionic surface is a single bionic structure, which can have a certain drag reduction effect, but the drag reduction effect needs to be further improved

Method used

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  • Composite bionic surface jet nozzle
  • Composite bionic surface jet nozzle

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Embodiment Construction

[0009] The present invention will be further explained below in conjunction with the drawings and embodiments:

[0010] in figure 1 with figure 2 The schematic diagram of the composite bionic surface jet nozzle shown is divided into three sections, namely an inlet section 1, a contraction section 2 and an outlet section 3. The inlet section is an equal-diameter round tube with threads 7 on its inner surface. , The non-free end of the inlet section is connected with the large-diameter end of the truncated cone-shaped tube of the contraction section. The inner wall of the truncated cone-shaped tube is a composite bionic surface composed of bionic shark skin drag reducing surface 4 and bionic superhydrophobic surface 5 The shark skin drag reduction surface is rectangular protrusions, the ratio of length to width is 2.5, and the heights of the protrusions are all equal, but cannot exceed 0.025 times the minimum diameter of the surface. The periphery and the inner wall are smoothly t...

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Abstract

A composite bionic surface jet nozzle is mainly composed of a truncated-cone-shaped contraction section and a circular-tube-shaped outlet section, the inner wall of the truncated-cone-shaped contraction section is a composite bionic surface composed of bionic sharkskin resistance reduction surfaces and bionic super-hydrophobic surfaces, the sharkskin resistance reduction surfaces are rectangular protrusions, long edges of the multiple identical rectangular protrusions are adjacent, in addition, the rectangular protrusions are distributed in the circumferential direction of the inner surface ofthe jet nozzle, and discontinuous bionic sharkskin resistance reduction convex rings are formed; the bionic super-hydrophobic surfaces are circular protrusions which are the same as the bionic sharkskin resistance reduction protrusions in height, the multiple circular protrusions which are the same as the bionic sharkskin resistance reduction convex rings in quantity are also distributed in the circumferential direction of the inner surface of the jet nozzle, discontinuous bionic super-hydrophobic convex rings are formed, and the bionic sharkskin resistance reduction convex rings and the bionic super-hydrophobic convex rings are sequentially arranged on the inner surface of the truncated-cone-shaped contraction section of the jet nozzle at intervals. According to the composite bionic surface jet nozzle, liquid resistance during jetting can be effectively reduced, thus, stable liquid jetting is achieved, the jetting distance is increased, and the energy saving effect is achieved.

Description

Technical field [0001] The invention relates to a jet nozzle. Background technique [0002] Bionic surface drag reduction is a more effective drag reduction method among many drag reduction methods. The most researched at home and abroad are the bionic shark skin surface and the bionic superhydrophobic surface. Based on the bionic surface technology, bionic surfaces applied in different fields are designed. For example, the Chinese patent publication number CN102714951A discloses the coupling bionic surface of the soil contact part of agricultural machinery, and the Chinese patent publication number CN106092505A discloses a bionic jet-based A drag reducing surface, and a Chinese patent with publication number CN203840742U discloses a bionic surface drag reducing structure for paddy field boats. The application of the above-mentioned bionic surface is a single bionic structure, which can have a certain drag reduction effect, but the drag reduction effect needs to be further impro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B1/00
CPCB05B1/00
Inventor 袁晓明王储邹易达罗成
Owner YANSHAN UNIV
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