Pipe fitting for eliminating vortex of high-flow diving respirator pipeline

Abstract

The utility model relates to diving equipment, in particular to a pipe fitting for eliminating vortex of a high-flow diving breathing apparatus pipeline, which comprises a pipe body capable of being placed in the high-flow diving breathing apparatus pipeline, a plurality of through holes are linearly arrayed on the pipe wall of the pipe body along the axial direction, the outline of each through hole is elliptical, and if the eccentricity of the ellipse is e, the eccentricity of the ellipse is e. And e is more than 0.8 and less than 1. Compared with the prior art, rotation and turbulent flow of gas in a pipeline are reduced, and therefore generation of vortexes is remarkably reduced.

Description

Technical Field

[0001] The utility model relates to diving equipment, and particularly to a pipe fitting for eliminating eddy currents in the pipeline of a large-flow diving breathing apparatus. Background Technique

[0002] In the diving field, with the development of technology and the popularization of diving activities, divers have higher and higher requirements for the performance of breathing apparatuses. In order to meet the demand for oxygen supply of divers during underwater activities, the design of modern diving breathing apparatuses tends to provide a larger-flow air supply system. In the existing design of breathing apparatuses, the flow rate can easily exceed 500 liters per minute to ensure that divers can obtain sufficient oxygen supply during high-intensity or long-duration dives.

[0003] However, in order to adapt to the structural requirements of diving full-face masks and diving helmets, the outlet pipeline of the breathing apparatus must be introduced into these devices. This results in a significant increase in the length of the outlet pipeline compared to traditional mouthpiece breathing apparatuses. In such a long pipeline, the flow of large-flow gas is prone to generate eddy current phenomena. Eddy currents not only cause instability in gas flow but may also lead to fluctuations in gas pressure, thereby affecting the breathing comfort and safety of divers.

[0004] The generation of eddy currents is due to the fact that when gas flows in the pipeline, due to the bending of the pipeline, joints or irregular shapes inside the pipeline, the gas flow direction changes, forming local rotational flow. This rotational flow forms eddy currents in the pipeline, thereby leading to non-uniformity and fluctuations in gas flow. In a diving breathing apparatus, such fluctuations will directly affect the breathing experience of divers, especially in situations where stable air supply is required, such as during deep dives or technical dives.

[0005] Therefore, developing a pipe fitting that can effectively eliminate eddy currents in the pipeline of a large-flow diving breathing apparatus is of great significance for improving the performance of diving equipment and the safety of divers. Content of the Utility Model

[0006] To solve the technical problems mentioned in the background technique, the utility model provides a pipe fitting for eliminating eddy currents in the pipeline of a large-flow diving breathing apparatus, and the technical solution adopted is:

[0007] A pipe fitting for eliminating eddy currents in the pipeline of a large-flow diving breathing apparatus includes a pipe body that can be placed inside the pipeline of the large-flow diving breathing apparatus. A plurality of through holes are linearly arrayed along the axial direction on the pipe wall of the pipe body. The contour shape of the through holes is an ellipse. If the eccentricity of the ellipse is e, then 0.8 < e < 1.

[0008] Further, if the included angle between the line connecting the two foci of the through hole and its end face is defined as a, then 0° < a < 45°.

[0009] Further, there are more than 3 spokes that are circumferentially arrayed at the upper end and near the lower end inside the tube body, and are integrally connected in the middle.

[0010] Further, between the upper and lower groups of the spokes, two adjacent through holes on one side thereof are fused to form a large hole, and the air filter material is filled between the upper and lower groups of the spokes inside the tube body through the large hole.

[0011] Further, a side opening is obliquely cut out along the radial direction on the lower end face and the circumferential face of the tube body.

[0012] Further, two opposite claws are formed by outward extension on the lower end face of the tube body, and the claws are adapted to be clamped with a clamping groove arranged on a large-flow diving respirator pipeline.

[0013] Further, the number of the through holes is 4, and 8 holes are formed on the tube wall of the tube body.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] Significantly reduce eddy currents: The design of the elliptical through holes, especially 0.8 < e < 1 means that the ellipse is very flat and the difference between the major axis and the minor axis is large, making the gas flow smoother, reducing the rotation and turbulence of the gas in the pipeline, and thus significantly reducing the generation of eddy currents.

[0016] Improve the stability of air flow: Due to the reduction of eddy currents, the gas flow is more stable and uniform, which helps to provide a more continuous and consistent oxygen supply to the diver.

[0017] Enhance breathing comfort: The stable air flow reduces the fluctuation of gas pressure, making the diver feel more comfortable when breathing underwater and reducing the breathing discomfort that may be caused by unstable gas supply.

[0018] Improve safety: Reducing eddy currents and improving the stability of air flow helps to reduce the risks faced by divers due to unstable air supply during deep diving or technical diving, thus improving the safety of diving.

[0019] Simple structure and easy to implement: This pipe fitting design has a simple structure, is easy to manufacture and install, does not require large-scale modification of the existing diving respirator pipeline system, and is convenient for popularization and application.

[0020] Cost-effectiveness: Due to the simple design, the manufacturing and maintenance costs are relatively low, making this pipe fitting have good economy while improving the performance of diving equipment.

[0021] Strong adaptability: This pipe fitting can be applied to various types of large-flow diving respirators, and can provide effective eddy current elimination effects whether for recreational diving or professional diving.

[0022] Optimize gas dynamics performance: The major axis direction of the elliptical hole can guide gas flow, optimize gas dynamics performance, reduce energy loss, and improve the overall efficiency of the breathing apparatus.

[0023] Reduce noise and vibration: The reduction of eddy currents also helps to reduce the noise and vibration generated during the operation of the breathing apparatus, improving the working environment for divers.

[0024] Prolong equipment life: Stable air flow and reduced eddy currents can reduce wear on pipeline materials, thus prolonging the service life of the diving breathing apparatus.

[0025] In summary, this elliptical through-hole pipe fitting with a specific eccentricity can not only effectively eliminate eddy currents in the pipeline of a large-flow diving breathing apparatus, improve the stability of gas flow, but also enhance the breathing comfort and safety of divers. At the same time, it has the advantages of simple structure, easy implementation, high cost-effectiveness, and strong adaptability. Brief Description of the Drawings

[0026] Figure 1 It is a front view structural schematic diagram of the present utility model.

[0027] Figure 2 It is a rear view structural schematic diagram of the present utility model.

[0028] Figure 3 It is a top view structural schematic diagram of the present utility model.

[0029] Figure 4 It is an isometric structural schematic diagram of the present utility model. Detailed Description of the Preferred Embodiments

[0030] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In addition, in the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0032] Please refer to Figures 1-4 , a pipe fitting for eliminating eddy currents in the pipeline of a large-flow diving breathing apparatus, characterized in that it includes a pipe body 1 that can be placed inside the pipeline of the large-flow diving breathing apparatus. Four through holes 2 are linearly arranged along the axis on the pipe wall of the pipe body 1, forming eight holes on the pipe wall of the pipe body 1. The contour shape of the through hole 2 is an ellipse. If the eccentricity of the ellipse is e, then 0.8 < e < 1.

[0033] In the geometric description of an ellipse, the eccentricity e is an important parameter, which is defined as:

[0034] where a is the semi-major axis of the ellipse and b is the semi-minor axis of the ellipse. The value range of the eccentricity e is from 0 to 1. When e = 0, the ellipse degenerates into a perfect circle because the semi-major axis and the semi-minor axis are equal. When e = 1, the ellipse degenerates into a line segment because the semi-minor axis b becomes 0. In this embodiment, 0.8 < e < 1, which means that the through hole 2 is a very flat ellipse with a large difference between the major axis and the minor axis. The shape of this ellipse is very close to a line segment but still maintains a certain width.

[0035] The pipe body 1 is the main part of the pipe fitting and can be placed inside the pipeline of the large-flow diving breathing apparatus. The design of the through holes 2 helps to reduce or eliminate eddy currents because they can change the path and speed of gas flow. The contour shape of the through holes is designed as an ellipse, which helps the gas flow to be smoother and reduces the generation of eddy currents. In this embodiment, by setting elliptical through holes on the pipe body and utilizing the geometric characteristics of the ellipse to optimize the gas flow and reduce eddy currents, the performance of the diving breathing apparatus is improved. Such a pipe fitting can make the diver breathe more smoothly underwater, improving the safety and comfort of diving.

[0036] In another preferred embodiment, if the angle between the line connecting the two foci of the through hole 2 and its end face is defined as a, then 0° < a < 45°. By precisely controlling the position and direction of the foci of the elliptical hole, the gas flow can be more effectively guided, reducing the formation of eddy currents. This design optimizes the gas flow path, further improving the stability of the air flow. The optimized gas flow path can reduce the residence time of the gas in the pipeline, enabling the breathing apparatus to respond more quickly to the diver's breathing needs and providing a more timely oxygen supply. By adjusting the angle between the line connecting the foci and the end face, the pressure distribution inside the pipeline can be more effectively controlled, reducing pressure fluctuations and thus improving the diver's breathing comfort. When setting the elliptical through holes on the pipe body, considering the angle between the line connecting the foci and the end face can enhance the structural stability of the pipe body, reducing vibrations and noises caused by gas flow. Precisely controlling the design parameters of the elliptical through holes helps to improve the durability and reliability of the pipe fitting, reducing wear caused by gas flow and extending the service life of the pipe fitting.

[0037] In another preferred embodiment, three spokes 3 with their middle parts connected as a whole are circumferentially arrayed inside the tube body 1, at its upper end, and at a position near its lower end. Between the upper and lower groups of the spokes 3, two adjacent through holes 2 on one side are fused to form a large hole 4, and the air filter material is filled between the upper and lower groups of the spokes 3 inside the tube body 1 through the large hole 4. By circumferentially arraying three spokes 3 with their middle parts connected as a whole inside the tube body 1, at its upper end, and at a position near its lower end, a space can be formed between the upper and lower groups of the spokes 3 for filling the air filter material. This design enables the air filter material to filter the gas entering the diving breathing apparatus more effectively and improve the cleanliness of the gas. The design of the spokes 3 helps to guide the gas flow and reduce the vortex and turbulence of the gas inside the tube body. This optimized gas flow path helps to improve the stability and efficiency of the gas flow. The design of the spokes 3 enhances the structural stability of the tube body 1, enabling the tube body to better withstand the underwater pressure and the stress generated by the gas flow. The design of the large hole 4 makes it more convenient to fill and replace the air filter material. Through the large hole 4, the filter material can be easily filled into the tube body 1 or taken out for cleaning or replacement when needed.

[0038] In another preferred embodiment, the lower end face and the circumferential face of the tube body 1 are obliquely cut out radially to form a side opening 5. The side opening 5 can directly deliver fresh gas to the inside of the full face mask or the helmet, and at the same time allow the exhaust gas to be discharged from the same opening, thereby improving the efficiency of gas exchange. Through the design of the side opening 5, the dead space volume in the breathing cycle, that is, the gas areas that are not easily completely replaced during the breathing process, can be reduced, thereby improving the utilization rate of oxygen. The side opening 5 helps to distribute the gas more evenly to the inside of the full face mask or the helmet, ensuring that the diver can obtain sufficient oxygen supply at different positions. The side opening 5 can reduce the gas flow resistance during the breathing process, making the diver feel more relaxed when inhaling and exhaling. Due to the improvement of the gas exchange efficiency and the reduction of the breathing resistance, the diver may feel more comfortable when breathing underwater and reduce the fatigue during the breathing process. By optimizing the gas flow and reducing the dead space, the risks faced by the diver due to insufficient gas supply or improper gas composition can be reduced, thereby improving the safety of diving.

[0039] In another preferred embodiment, two opposite clamping claws 6 extend outward from the lower end surface of the pipe body 1, and the clamping claws 6 are adapted to be clamped with a clamping groove provided on the large-flow diving breathing apparatus pipeline. The design of the clamping claws 6 allows the pipe fitting to be quickly and conveniently installed on the breathing apparatus pipeline, and at the same time is also convenient for disassembly, maintenance and cleaning. The use of the clamping claws 6 and the clamping groove can provide a firm connection, ensuring that the pipe fitting will not accidentally fall off during use and improving the stability of the overall system. Through the close cooperation between the clamping claws 6 and the clamping groove, the sealing performance between the pipe fitting and the breathing apparatus pipeline can be improved, reducing gas leakage and ensuring the efficiency of gas supply. The design of the clamping claws 6 can be compatible with various different models of breathing apparatus pipelines, improving the versatility and applicability of the pipe fitting.

[0040] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipe fitting for eliminating eddy currents in the pipeline of a large-flow diving breathing apparatus, characterized in that, It includes a tube body (1) that can be placed inside the pipeline of a large-flow diving breathing apparatus. A plurality of through holes (2) are linearly arrayed along the axial direction on the tube wall of the tube body (1). The contour shape of the through hole (2) is an ellipse. If the eccentricity of the ellipse is e, then 0.8 < e < 1.

2. The pipe fitting for eliminating the eddy current in the pipeline of a large-flow diving breathing apparatus according to claim 1, characterized in that If the included angle between the connection line of the two foci of the through hole (2) and its end face is defined as a, then 0° < a < 45°.

3. The pipe fitting for eliminating the vortex in the pipeline of a large-flow diving breathing apparatus according to claim 1, wherein, More than 3 spokes (3) that are integrally connected in the middle are circumferentially arrayed at the upper end and near the lower end inside the tube body (1).

4. A pipe fitting for eliminating eddy currents in the pipeline of a large-flow diving breathing apparatus according to claim 3, characterized in that, Between the upper and lower groups of the spokes (3), two adjacent through holes (2) on one side are fused to form a large hole (4). An air filter material is filled between the upper and lower groups of the spokes (3) inside the tube body (1) through the large hole (4).

5. A pipe fitting for eliminating eddy currents in the pipeline of a large-flow diving breathing apparatus according to claim 1, characterized in that, A side opening (5) is obliquely cut out along the radial direction on the lower end face and the circumferential surface of the tube body (1).

6. The pipe fitting for eliminating the eddy current in the pipeline of a large-flow diving breathing apparatus according to claim 1, wherein, Two opposite claw catches (6) extend outward on the lower end face of the tube body (1). The claw catches (6) are adapted to be clamped with a card slot provided on the pipeline of the large-flow diving breathing apparatus.

7. A pipe fitting for eliminating eddy currents in the pipeline of a large-flow diving breathing apparatus according to claim 1, characterized in that, The number of the through holes (2) is 4, and 8 holes are formed on the tube wall of the tube body (1).

Images