Small-caliber closed target channel sound insulation and noise reduction system

Abstract

The utility model discloses a small-caliber closed target channel sound insulation and noise reduction system which comprises a target channel, a firing position sound insulation room, a smoke exhaust silencer and a pressure relief silencer. The target channel and the firing position sound insulation room form a closed target channel, the firing position sound insulation room is of a closed structure composed of an anti-impact noise reduction wall and a sound insulation door, a rapid smoke exhaust system is arranged in the firing position sound insulation room, and efficient smoke exhaust is achieved through three air pipes and a plurality of exhaust inlets. A smoke exhaust silencer is arranged at the top of the target channel and used for optimizing airflow and noise control, and a plurality of pressure relief openings are formed in the side face of the target channel and connected with a pressure relief silencer. The pressure relief silencer is connected with a target channel wall through a 45-degree included angle, and transverse and vertical silencing sheets are arranged in the pressure relief silencer to form a zigzag channel for weakening shock waves and noise and intercepting bounces and fragments. The system is simple in structure and high in safety, leakage of shooting noise and impact wave influence are remarkably reduced through efficient sound insulation and smoke exhaust design, meanwhile, pressure balance inside and outside a target channel is achieved, and the system is suitable for military training and weapon performance testing scenes.

Description

Technical Field

[0001] This utility model relates to the field of noise control, and in particular to a small-diameter enclosed target channel sound insulation and noise reduction system. Background Technology

[0002] Artillery firing ranges / tunnels are crucial sites for military training and weapons testing, used to perform performance tests and evaluations of various weapon systems. Enclosed firing ranges allow for better recording and analysis of projectile motion parameters and effectively prevent ricochets. However, the high-intensity noise and shockwaves generated during firing can impact the stability of surrounding facilities and potentially harm the health of operators. Furthermore, noise in enclosed firing range environments is prone to reflection and superposition, increasing noise complexity and control difficulty. Therefore, designing a system that effectively reduces noise, balances pressure, and rapidly removes smoke has become an urgent technical challenge. Utility Model Content

[0003] The purpose of this invention is to provide a small-diameter enclosed target channel sound insulation and noise reduction system to achieve noise control, flue gas emission and pressure balance, and improve the performance and safety of the target channel.

[0004] This utility model is achieved using the following technical solution: a small-diameter enclosed target lane sound insulation and noise reduction system, including a target lane, a firing position soundproof room, a smoke exhaust silencer, and a pressure relief silencer; the target lane and the firing position soundproof room together form an enclosed target lane; the firing position soundproof room is a closed structure composed of an impact-resistant soundproof wall and an impact-resistant soundproof door, and its interior is equipped with a rapid smoke exhaust system, which includes upper, middle, and lower ducts and several air intakes; the smoke exhaust silencer and the pressure relief silencer are respectively installed at the top and side of the target lane, the smoke exhaust silencer is used to exhaust firing smoke, and the pressure relief silencer is connected to the impact-resistant soundproof wall of the target lane at a 45° angle through a pressure relief port, which is used to balance pressure and reduce shock waves and noise.

[0005] Furthermore, in the rapid smoke exhaust system of the firing position soundproof room, the lower duct is about 3.5 meters above the ground; the upper duct is about 7.5 meters above the ground; the middle duct is arranged vertically and is about 3.5 meters long; the duct is equipped with several air intakes and at least 4 soundproof room silencers are installed on the shoulder.

[0006] Furthermore, the target passage is approximately 80 meters long, 3 meters wide, and 4 meters high; multiple smoke exhaust silencers are installed at the top of the target passage, and several pressure relief ports are installed on the left side, connected to the pressure relief silencers.

[0007] Further, the pressure relief silencer is internally provided with three transverse sound-absorbing sheets and four vertical sound-absorbing sheets; the transverse sound-absorbing sheets are perpendicular to the airflow direction, and the vertical sound-absorbing sheets are parallel to the airflow direction, and the two together form a zigzag channel for prolonging the airflow path and weakening the shock wave and noise.

[0008] Further, the impact-resistant sound-absorbing wall comprises a stainless steel perforated plate, a high-strength glass cloth and a high-efficiency sound-absorbing material; the sound-absorbing body is fixed to the inner side of the concrete wall and is fastened and connected through a support.

[0009] Further, the pressure relief silencer is connected to the impact-resistant sound-absorbing wall of the target channel at a 45° angle through a pressure relief port, for intercepting the fragments generated by the jump or explosion, and preventing the fragments from being directly shot out through the pressure relief port.

[0010] Further, the smoke exhaust silencer is internally provided with a porous sound-absorbing material with a thickness of about 80 mm, at least two transverse sound-absorbing sheets and four vertical sound-absorbing sheets; the sound-absorbing sheets are configured to absorb noise while ensuring smoke exhaust.

[0011] The small-caliber closed target channel sound insulation and noise reduction system has the following beneficial effects:

[0012] Noise control: the multi-stage sound-absorbing assembly significantly reduces noise leakage;

[0013] Pressure balance: the pressure relief silencer slowly releases the shock wave, and stabilizes the pressure inside and outside the target channel;

[0014] Fast smoke exhaust: scientific air volume distribution enables efficient exhaust of the firing smoke;

[0015] High safety: prevents jump and fragment leakage, and protects equipment and personnel. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained from the structures shown in these drawings without creative labor.

[0017] Fig. 1 It is a small-caliber closed target channel sound insulation and noise reduction system schematic diagram;

[0018] Fig. 2 It is a pressure relief silencer structure schematic diagram;

[0019] In the figure, 1 is a target channel, 2 is a smoke exhaust silencer, 3 is a pressure relief silencer, 31 is a transverse sound-absorbing sheet, 32 is a vertical sound-absorbing sheet, 4 is a firing position sound insulation room, and 5 is a sound insulation room silencer. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally 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 merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] like Figs. 1-2 As shown, a small-diameter enclosed target lane sound insulation and noise reduction system includes a target lane 1, a firing position soundproof room 4, a smoke exhaust silencer 2, and a pressure relief silencer 3. The target lane 1 is located on one side of the firing position soundproof room 4, and the two together form an enclosed target lane. There are multiple smoke exhaust silencers 2 and pressure relief silencers 3, which are arranged sequentially on the top and side of the target lane 1.

[0023] The firing position soundproof room 4 is a closed structure composed of impact-resistant sound-absorbing walls and impact-resistant soundproof doors. It is equipped with a rapid smoke exhaust system consisting of upper, middle, and lower duct sections. The lower duct is approximately 3.5 meters above the ground, the upper duct is approximately 7.5 meters above the ground, and the middle duct is vertically arranged with a length of approximately 3.5 meters. Several air intakes are provided on the ducts, and four soundproof room silencers 5 are installed on the shoulder.

[0024] The target channel 1 is approximately 80 meters long, 3 meters wide, and 4 meters high. Several pressure relief ports are provided on the left side, which are connected to pressure relief silencers 3; three exhaust silencers 2 are provided at the top to optimize airflow and noise control.

[0025] The pressure relief silencer 3 is connected to the impact-resistant sound-absorbing wall of the target passage 1 at a 45° angle via a pressure relief port. Internally, it has three horizontal silencer plates 31 and four vertical silencer plates 32, forming a tortuous channel and extending the airflow path. This reduces the intensity of the shock wave and noise, intercepts ricochets or barrel fragments, and protects external equipment and personnel of the target passage. The airflow passes sequentially through the horizontal silencer plates 31 and the vertical silencer plates 32 before exiting the target passage 1. The horizontal silencer plates 31 are perpendicular to the airflow direction, and the vertical silencer plates 32 are parallel to the airflow direction.

[0026] The quick smoke exhaust system of the firing position soundproof room 4 can open the fan before the artillery shell test, and the firing can be carried out after the fan is stably operated. Since the firing smoke has a tendency to diffuse from bottom to top, after the sound sensor in the air valve control system detects the firing sound, the air valve will be adjusted immediately, and the air volume will be distributed to the lower, middle and upper air inlets backward to maximize the smoke exhaust efficiency and achieve good sound insulation effect. The impact soundproof wall body is a whole concrete foundation, the soundproof body is fixed in the wall body, and the soundproof body is composed of stainless steel perforated plate, high-strength glass fiber cloth and high-efficiency soundproof material from outside to inside, and is tightly connected with the support fixed in the inside of the concrete wall body, so that the noise and shock wave generated by the artillery fire can be effectively absorbed.

[0027] The pressure relief silencer 3 is connected with the impact soundproof wall body of the target channel at a 45° angle through a pressure relief port, is internally provided with three transverse soundproof sheets 31 to form a zigzag channel, increase the length of airflow passing through, effectively weaken the shock wave robbery, and finally discharges the artillery impact wave after passing through four vertical soundproof sheets 32, balances the pressure inside and outside the closed target channel, reduces the noise transmission to the outside, and in addition, the 45° angle connection is helpful to intercept the fragments generated by the accidental jump and explosion, prevents the fragments from being directly shot out through the pressure relief port, and causes damage to the equipment or personnel beside the target channel.

[0028] In the above embodiment, the basic principle and main features of the utility model and the advantages of the utility model are described. It should be understood by those skilled in the art that the utility model is not limited by the above embodiment, and the above embodiment and the description in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the changes and variations made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the protection scope of the claims of the utility model.

Claims

1. A small-bore closed target channel soundproofing and noise reduction system, characterized in that, It includes target path (1), firing position soundproof room (4), smoke exhaust muffler (2) and pressure relief muffler (3); the target path (1) and firing position soundproof room (4) jointly constitute closed target path; the firing position soundproof room (4) is composed of impact-resistant soundproof wall and impact-resistant soundproof door to form a closed structure, and a rapid smoke exhaust system is arranged in the closed structure; the rapid smoke exhaust system comprises upper, middle and lower three air pipes and a plurality of air inlets; the smoke exhaust muffler (2) and the pressure relief muffler (3) are arranged at the top and the side of the target path (1) respectively, the smoke exhaust muffler (2) is used for exhausting firing smoke, and the pressure relief muffler (3) is connected to the impact-resistant soundproof wall of the target path (1) at an angle of 45° through a pressure relief opening, and is used for balancing pressure and weakening shock wave and noise.

2. A small-bore closed target channel soundproofing and noise reduction system according to claim 1, characterized in that, In the rapid smoke exhaust system of the firing position soundproof room (4), the lower air pipe is about 3.5 meters away from the ground, the upper air pipe is about 7.5 meters away from the ground, and the middle air pipe is vertically arranged and has a length of about 3.5 meters; a plurality of air inlets are arranged on the air pipe, and at least four soundproof room mufflers (5) are arranged on the shoulder.

3. The small-bore closed target channel soundproofing and noise reduction system according to claim 1, characterized in that, The target path (1) has a length of about 80 meters, a width of about 3 meters and a height of about 4 meters; a plurality of smoke exhaust mufflers (2) are arranged at the top of the target path (1), and a plurality of pressure relief openings are arranged on the left side and connected to the pressure relief muffler (3).

4. The small-bore closed target channel soundproofing and noise reduction system according to claim 1, characterized in that, The pressure relief muffler (3) is internally provided with three transverse sound-absorbing sheets (31) and four vertical sound-absorbing sheets (32); the transverse sound-absorbing sheets (31) are perpendicular to the airflow direction, and the vertical sound-absorbing sheets (32) are parallel to the airflow direction, and the two together form a zigzag channel for prolonging the airflow path and weakening the shock wave and noise.

5. A small-bore closed target channel soundproofing and noise reduction system according to claim 1, characterized in that, The impact-resistant soundproof wall comprises: a stainless steel perforated plate; high-strength glass fiber cloth; high-efficiency sound-absorbing material; the sound-absorbing body is fixed to the inner side of the concrete wall and is fastened and connected through a support.

6. A small-bore closed target channel soundproofing and noise reduction system according to claim 1, characterized in that, The pressure relief muffler (3) is connected to the impact-resistant soundproof wall of the target path (1) at an angle of 45° through a pressure relief opening, and is used for intercepting fragments generated by jumping bullets or explosion, and preventing the fragments from being directly shot out through the pressure relief opening.

7. A small-bore closed target channel soundproofing and noise reduction system according to claim 1, characterized in that, The smoke exhaust muffler (2) is internally provided with: porous sound-absorbing material with a thickness of about 80 mm; at least two transverse sound-absorbing sheets (31) and four vertical sound-absorbing sheets (32); the sound-absorbing sheets are configured to absorb noise while ensuring smoke exhaust.

Images