Tunnel air pipe curved surface nozzle structure

Abstract

The utility model discloses a tunnel air pipe curved-surface nozzle structure which comprises a curved-surface nozzle outer pipe, the end portion of the curved-surface nozzle outer pipe is connected with a rubber ring in a glued mode, an inner cavity of the curved-surface nozzle outer pipe is provided with a curved-surface nozzle inner pipe, an inner cavity of the curved-surface nozzle inner pipe is fixedly connected with a filter screen, and the corner of the annular wall of the curved-surface nozzle outer pipe is fixedly connected with a buckle. And the side wall of the buckle is buckled with the annular wall at one end of the air pipe. A tiny pressure difference is applied in the air flowing direction, the original flowing direction of air is changed, therefore, the air flowing efficiency is improved, coanda effect air supply is achieved, meanwhile, the curvature radius R of an inner pipe of the curved-surface nozzle is 1.5 D-2D, the air flowing efficiency is improved and resistance is reduced by means of the airflow wall-attached flowing characteristic, and therefore the air flow efficiency is improved. The fan has the characteristics that turbulence and friction during air flowing can be reduced, so that the air flowing efficiency is improved, and the air supply distance is prolonged to be more than 120m.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wind pipe curved surface nozzle technical field, and the specific field is a tunnel wind pipe curved surface nozzle structure. BACKGROUND

[0002] The long tunnel of metal mine is usually narrow, and the ventilation condition is poor, and there are problems of high temperature, high humidity, dust and harmful gas. The traditional ventilation equipment can have limited effect, especially when conveying air over a long distance, the airflow is easy to attenuate, resulting in insufficient ventilation at the end. The high temperature and high humidity environment in the tunnel will form construction. High temperature heat damage will also have adverse effects on human health. High temperature weather will increase the risk of heat stroke and cardiovascular disease, and will threaten the life safety and health of people. Heat damage will seriously affect the physical health and labor productivity of the personnel in the hole. Secondly, the high temperature of the working face will also reduce the TBM driving efficiency and affect the driving speed. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a tunnel wind pipe curved surface nozzle structure to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a tunnel wind pipe curved surface nozzle structure, comprising a curved surface nozzle outer pipe, the end of the curved surface nozzle outer pipe is glued with a rubber ring, the outer wall of the curved surface nozzle outer pipe is sleeved with a wind pipe, the inner cavity of the wind pipe is fixedly connected with an inner ring, and the side wall of the inner ring is attached to the side wall of the rubber ring, the inner cavity of the curved surface nozzle outer pipe is provided with a curved surface nozzle inner pipe, the inner cavity of the curved surface nozzle inner pipe is fixedly connected with a filter screen, the annular wall corner of the curved surface nozzle outer pipe is fixedly connected with a buckle, and the side wall of the buckle is buckled with the annular wall of one end of the wind pipe.

[0005] Preferably, the other end of the wind pipe is flange connected with a first flange pipe, the other end of the first flange pipe is fixedly connected with a metal bellows, and the other end of the metal bellows is fixedly connected with a second flange pipe.

[0006] Preferably, the side wall of the wind pipe is fixedly connected with a support rod, the other end of the support rod is fixedly connected with a round hole fixing piece, the side wall of the support rod is fixedly connected with a reinforcing rod in a symmetrical manner, and the other end of the reinforcing rod is fixedly connected with the side wall of the wind pipe.

[0007] Preferably, the inner wall of the curved surface nozzle inner pipe is provided with a counterweight.

[0008] Preferably, the side wall of the curved surface nozzle inner pipe is provided with a ball, the ball is rotatably connected with the side wall of the curved surface nozzle inner pipe, and the ball is attached to the inner wall of the curved surface nozzle outer pipe.

[0009] Compared with the prior art, the beneficial effects of the utility model are: when the long roadway of the metal mine is ventilated, the air pipe is arranged in the roadway in advance, the metal bellows pipe is arranged at the other end of the first flange pipe, the other end of the metal bellows pipe is provided with the second flange pipe, the continuation work in the roadway is facilitated, the air can be sent to the roadway through the continuation of other pipes, a small pressure difference is applied in the direction of air flow, the air changes the original flow direction, thereby the air flow efficiency is improved, the conda effect air supply is realized, the curvature radius R of the inner pipe of the curved surface nozzle is 1.5D~2D), the airflow wall flow characteristics are utilized, and the air flow efficiency is improved and the resistance is reduced, the turbulence and friction during air flow are reduced, thereby the air flow efficiency is improved, the air supply distance is prolonged to above 120m, the core area temperature of the roadway is effectively reduced to below 28 DEG C, and the problems of work efficiency reduction and personnel health risk caused by high temperature are solved. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 It is Figure 1 It is a sectional view of the inner pipe of the medium curved surface nozzle;

[0012] Figure 3 It is Figure 1 It is a structural detail view of the buckle;

[0013] In the drawing: 1, curved surface nozzle outer pipe; 2, rubber ring; 3, curved surface nozzle inner pipe; 4, buckle; 5, air pipe; 6, inner ring; 7, first flange pipe; 8, metal bellows pipe; 9, second flange pipe; 10, supporting rod; 11, reinforcing rod; 12, round hole fixing part; 13, counterweight; 14, filter screen; 15, ball. DETAILED DESCRIPTION

[0014] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0015] Please refer to Figures 1-3The utility model provides a kind of tunnel air pipe curved surface nozzle structure, including curved surface nozzle outer tube 1, the end of curved surface nozzle outer tube 1 is glued with rubber ring 2, the outer wall of curved surface nozzle outer tube 1 is sleeved with air pipe 5, the inner cavity of air pipe 5 is fixedly connected with inner ring 6, and the side wall of inner ring 6 is attached with the side wall of rubber ring 2, the inner cavity of curved surface nozzle outer tube 1 is provided with curved surface nozzle inner tube 3, the inner cavity of curved surface nozzle inner tube 3 is fixedly connected with filter screen 14, the ring wall corner of curved surface nozzle outer tube 1 is fixedly connected with buckle 4, and the side wall of buckle 4 is engaged with the ring wall of one end of air pipe 5.

[0016] Preferably, the other end of the air pipe 5 is flange connected with the first flange pipe 7, the other end of the first flange pipe 7 is fixedly connected with the metal bellow 8, the other end of the metal bellow 8 is fixedly connected with the second flange pipe 9.

[0017] The side wall of the air pipe 5 is fixedly connected with the support rod 10, the other end of the support rod 10 is fixedly connected with the round hole fixing part 12, the side wall of the support rod 10 is fixedly connected with the reinforcing rod 11 symmetrically, and the other end of the reinforcing rod 11 is fixedly connected with the side wall of the air pipe 5.

[0018] The inner wall of the curved surface nozzle inner tube 3 is provided with the counterweight 13.

[0019] The side wall of the curved surface nozzle inner tube 3 is provided with the ball 15, the ball 15 is rotatably connected with the side wall of the curved surface nozzle inner tube 3, and the ball 15 is attached with the inner wall of the curved surface nozzle outer tube 1.

[0020] Working principle: when the long roadway ventilation of metal mine is carried out, the air pipe 5 is arranged in the roadway in advance, the outer wall of the air pipe 5 is provided with the round hole fixing part 12, the round hole fixing part 12 is connected with the air pipe 5 by the supporting rod 10, the two sides are reinforced and connected by the reinforcing rod 11, the air pipe 5 is fixed in the roadway by the use of the round hole fixing part 12, the other end of the air pipe 5 is flange connected with the first flange pipe 7, the other end of the first flange pipe 7 is provided with the metal bellows 8, the other end of the metal bellows 8 is provided with the second flange pipe 9, the connection work in the roadway is facilitated, the conda effect refers to the tendency of gas deviating from the original flow direction and flowing along the convex object surface, when the fluid contacts a curved surface, due to the pressure difference on the curved surface, the fluid tends to flow along the curved surface, even if there is a low pressure area at the other end of the curved surface, the curved surface nozzle inner pipe 3 is buckled and installed with the curved surface nozzle outer pipe 1, the complete curved surface nozzle is formed, the pressure difference on the curved surface is realized, the fluid tends to flow along the curved surface, this effect can be used to change the flow direction of the air flow, so that it flows along the set path, the high-speed fan is used at the air inlet position of the roadway, the other pipes can send air to the roadway, the air flow is accelerated by the rotating blades, high-speed airflow is generated, a small pressure difference is applied in the direction of the air flow, the air changes the original flow direction, thereby improving the efficiency of the air flow, realizing the conda effect air supply, the metal bellows 8 can be arranged to slightly bend the pipe, reduce the turning angle, adapt to the installation environment in the roadway, the subsequent installation is carried out at the end of the air pipe 5, the curved surface nozzle inner pipe 3 is buckled and installed with the curved surface nozzle outer pipe 1, the complete curved surface nozzle is formed, the buckle 4 is arranged on the ring wall corner of the curved surface nozzle outer pipe 1, the buckle 4 is buckled with the air pipe 5, the end of the curved surface nozzle outer pipe 1 is attached to the inner ring 6 in the air pipe 5, and the rubber ring 2 is used for sealing, thereby reducing the air leakage rate, the filter screen 14 is arranged in the inner cavity of the curved surface nozzle inner pipe 3, and simple filtering is carried out, the counterweight 13 is further arranged in the curved surface nozzle inner pipe 3, the rolling ball 15 is used, the curved surface nozzle inner pipe 3 rotates more smoothly in the inner cavity of the curved surface nozzle outer pipe 1, the direction of the curved surface nozzle inner pipe 3 always deviates downward, so that the air supply is more stable, the curvature radius R of the curved surface nozzle inner pipe 3 is 1.5D~2D), the airflow wall attachment flow characteristics are used, which is usually used to improve the efficiency of air flow and reduce resistance, the characteristic is that the turbulence and friction of air flow can be reduced, thereby improving the efficiency of air flow, prolonging the air supply distance to more than 120m, and effectively reducing the core area temperature of the roadway to below 28℃.

[0021] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tunnel duct curved nozzle structure, characterized by: The utility model provides a curved surface nozzle outer tube (1), the end of curved surface nozzle outer tube (1) is glued with rubber ring (2), the outer wall of curved surface nozzle outer tube (1) is sleeved with air pipe (5), the inner chamber of air pipe (5) is fixedly connected with inner ring (6), and the side wall of inner ring (6) is in conformance with the side wall of rubber ring (2), the inner chamber of curved surface nozzle outer tube (1) is provided with curved surface nozzle inner tube (3), the inner chamber of curved surface nozzle inner tube (3) is fixedly connected with filter screen (14), the ring wall corner of curved surface nozzle outer tube (1) is fixedly connected with buckle (4), and the side wall of buckle (4) is in conformance with the ring wall of one end of air pipe (5).

2. A tunnel duct curved nozzle structure according to claim 1, characterized in that: The other end of air pipe (5) is flange connected with first flange pipe (7), the other end of first flange pipe (7) is fixedly connected with metal bellow (8), the other end of metal bellow (8) is fixedly connected with second flange pipe (9).

3. A tunnel duct curved nozzle structure according to claim 1, characterized in that: The side wall of air pipe (5) is fixedly connected with support rod (10), the other end of support rod (10) is fixedly connected with round hole fixing part (12), the side wall of support rod (10) is fixedly connected with reinforcing rod (11) in symmetry, and the other end of reinforcing rod (11) is fixedly connected with the side wall of air pipe (5).

4. A tunnel duct curved nozzle structure according to claim 1, characterized in that: The inner wall of curved surface nozzle inner tube (3) is provided with counterweight (13).

5. A tunnel duct curved nozzle structure according to claim 1, characterized in that: The side wall of curved surface nozzle inner tube (3) is provided with ball (15), the side wall of curved surface nozzle inner tube (3) is rotatably connected with ball (15), and ball (15) is in conformance with the inner wall of curved surface nozzle outer tube (1).

Images