High-energy-utilization-rate nozzle suitable for cylindrical obstacle

Abstract

The utility model discloses a high energy utilization rate nozzle suitable for a cylindrical barrier, which comprises a nozzle main body and is characterized in that a plurality of spray holes arranged along the radial direction are arranged on the nozzle main body, the spray holes comprise a central hole and edge holes, and the edge holes are arranged on two sides of the central hole. And during spraying, a plurality of independent jet flows are formed. The energy density of jet flow formed by the center hole is maximum, and the energy density of the edge holes is low. The distribution better conforms to the appearance characteristics of the columnar obstacle, and the obstacle can be cut more effectively.

Description

Technical Field

[0001] The utility model relates to a nozzle structure, in particular to a high energy utilization rate nozzle suitable for cylindrical obstacles. Background Art

[0002] A barrier lake is formed when a landslide, such as a volcanic lava flow, glacial moraine, or earthquake-induced rockfall, blocks a valley, river valley, or riverbed. When clearing a barrier lake, rebar and metal debris are often found blocking the water outlet. While large-scale explosive devices can remove such obstructions, they cause extensive damage and can easily cause secondary landslides. Therefore, in most cases, a cutting device that can be used underwater is more effective.

[0003] Currently, underwater cutting equipment is primarily categorized into two main types: thermal cutting and cold cutting. Thermal cutting accounts for over 90% of underwater cutting methods. Fuel flame cutting (such as acetylene flame cutting, gasoline flame cutting, and natural gas flame cutting) and arc cutting are the primary thermal cutting methods. Cold cutting primarily includes mechanical cutting, explosive cutting, and high-pressure water jet cutting.

[0004] While each of these underwater cutting devices has its own distinct strengths and advantages, they all share a common limitation: high dependence on energy and equipment. These devices often require heavy equipment and power supplies, limiting their use in complex underwater environments and in emergency situations where large equipment cannot be transported in a timely manner. Furthermore, thermal cutting equipment requires operators to carry fuel bottles on their backs while operating on-site, which presents certain safety risks.

[0005] Patent CN 218296926 U discloses an underwater obstacle-breaking device that uses a chemical reaction to generate high-temperature products, which are compressed through a nozzle to form a high-temperature, high-impact jet to achieve cutting. This device uses a single-hole nozzle. When the nozzle diameter is reduced, the jet's penetration increases, but the damage area decreases. When the nozzle diameter is increased, the jet's penetration decreases, but the damage area increases.

[0006] In actual underwater operations, cylindrical obstacles, such as rebar and wire rope, are the most common. These obstacles are largest at their center axis and decrease in size as they move away from the center axis. Using a single-hole nozzle makes it difficult to efficiently distribute the jet energy. Using a small-aperture single-hole nozzle, the jet can penetrate the center of the rebar, but it won't completely cut through the edges. Using a large-aperture single-hole nozzle, the jet won't penetrate the center of the rebar at all. Utility Model Content

[0007] The purpose of the utility model is to provide a high energy utilization rate nozzle suitable for cylindrical obstacles, so as to solve the shortcoming of the prior art that cylindrical obstacles cannot be effectively cut off.

[0008] The utility model is realized by adopting the following technical scheme: a high energy utilization nozzle suitable for cylindrical obstacles, comprising a nozzle body, characterized in that the nozzle body is provided with a plurality of spray holes arranged in a radial direction, the spray holes comprising a central hole and edge holes, and the edge holes are arranged on both sides of the central hole.

[0009] Furthermore, the spray hole passes through the nozzle body and connects the nozzle outer end surface and the nozzle inner end surface.

[0010] Furthermore, the inner end surface of the nozzle is a concave conical surface.

[0011] Furthermore, the cone angle of the inner end surface of the nozzle is 45%-120%.

[0012] Furthermore, the central hole is coaxial with the axis of the nozzle body, and there are a plurality of edge holes symmetrically arranged on both sides of the central hole.

[0013] Furthermore, the diameter of the edge hole is 30% to 60% of the diameter of the center hole.

[0014] Furthermore, the distance between the edge holes is ≥2 mm.

[0015] The high-energy-efficiency nozzle suitable for cylindrical obstacles described in this utility model has the following beneficial effects: during injection, multiple independent jets are formed. The jet energy density formed by the center hole is the highest, while the energy density of the edge holes is lower. This distribution better conforms to the shape characteristics of cylindrical obstacles, enabling more effective cutting of such obstacles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 A front view of a high energy utilization nozzle suitable for cylindrical obstacles;

[0018] Figure 2 A cross-sectional view of a high energy utilization nozzle suitable for cylindrical obstacles;

[0019] In the figure: 1-center hole, 2-edge hole, 3-nozzle body, 4-nozzle outer end surface, 5-nozzle inner end surface. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0022] like Figure 1-2 The figure shows a high-energy-efficiency nozzle suitable for cylindrical obstacles. It includes a nozzle body 3, a center hole 1, and edge holes 2 disposed therein. The center hole 1 penetrates the nozzle body 3 and connects the nozzle outer end face 4 with the nozzle inner end face 5. The center hole 1 is located at the center of the nozzle outer end face 4 and is coaxial with the axis of the nozzle body 3. Four edge holes 2 are provided, symmetrically arranged on either side of the center hole 1. The edge holes 2 are radially arranged on a straight line passing through the center of the end face of the center hole 1. The diameter of the edge holes 2 is 30% to 60% of the diameter of the center hole 1. The distance between the edge holes 2 is ≥ 2 mm.

[0023] The nozzle's outer end surface 4 is flat, while the nozzle's inner end surface 5 is a concave tapered surface with a taper angle of 45%-120%. During injection, the liquid passes through the center hole 1 and the edge holes 2 to form several independent jets. The jet formed by the center hole 1 has the highest energy density, while the energy density of the edge holes 2 is lower. The distribution pattern of the center hole 1 and edge holes 2 better matches the shape characteristics of columnar obstacles, enabling more effective cutting of cylindrical obstacles.

[0024] The above embodiments describe the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Without departing from the spirit and scope of the present invention, modifications and variations made by those skilled in the art without departing from the spirit and scope of the present invention should be within the scope of protection of the appended claims.

Claims

1. A high energy utilization nozzle suitable for cylindrical obstacles, comprising a nozzle body (3), characterized in that: The nozzle body (3) is provided with a plurality of spray holes arranged in a radial direction, the plurality of spray holes are parallel to each other, the spray holes include a central hole (1) and edge holes (2), the edge holes (2) are provided on both sides of the central hole (1); the spray holes penetrate the nozzle body (3) and connect the nozzle outer end surface (4) and the nozzle inner end surface (5); the nozzle inner end surface (5) is a concave conical surface; the central hole (1) is coaxial with the axis of the nozzle body (3), and the edge holes (2) are in a plurality and are symmetrically provided on both sides of the central hole (1).

2. The high energy utilization nozzle suitable for cylindrical obstacles according to claim 1, characterized in that: The cone angle of the inner end surface (5) of the nozzle is 45%-120%.

3. The high energy utilization nozzle suitable for cylindrical obstacles according to claim 1, characterized in that: The diameter of the edge hole (2) is 30% to 60% of the diameter of the center hole (1).

4. The high energy utilization nozzle suitable for cylindrical obstacles according to claim 1, characterized in that: The distance between the edge holes (2) is ≥2 mm.

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