A fire-fighting impedance composite silencer device

Abstract

This utility model belongs to the technical field of fire-fighting silencers, specifically a fire-fighting impedance composite silencer device. Addressing the problems of inconvenient installation and disassembly, and unsatisfactory silencing effect mentioned in the background technology, the following solution is proposed: a silencer frame, with an air inlet plate fixedly connected to one end of the frame's outer wall by screws, and an exhaust plate welded to the other end of the frame's outer wall. Arrayed guide strips are welded to the inner walls of both sides of the silencer frame, and equidistant silencing components are arranged on the outer walls of the guide strips inside the silencer frame. Each silencing component includes a silencing plate, a filter screen, and silencing cotton, wherein the silencing plate is slidably mounted on the outer wall of the guide strips. This utility model, through its reasonable structural design, achieves convenient installation and disassembly of the silencing components, efficient silencing effect, and effective filtration of dust and debris in the airflow, thus improving the practicality and reliability of the fire-fighting silencer device.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting silencer technology, and in particular to a fire-fighting impedance composite silencer device. Background Technology

[0002] In the field of fire protection equipment, silencers are important devices used to reduce airflow noise in fire protection systems. They are mainly installed in locations such as fire fans and exhaust pipes. By guiding airflow and absorbing and reflecting sound waves, they reduce the propagation of noise, creating a relatively quiet environment for fire protection operations, while also preventing noise from affecting surrounding residents and equipment.

[0003] However, existing fire-fighting silencer devices have some shortcomings in practical use:

[0004] Firstly, the installation and disassembly of the silencing components are not convenient enough. Traditional structures often use bolt fixing methods, which makes the operation cumbersome, time-consuming and labor-intensive when maintenance or replacement of the silencing components is required, thus affecting the maintenance efficiency of fire-fighting equipment.

[0005] Secondly, the noise reduction effect is not ideal. Traditional silencers mostly use a single noise reduction method, such as absorbing noise only through sound-absorbing cotton. The noise reduction effect varies greatly for different frequencies of noise, which cannot meet the noise reduction needs in complex environments. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a fire-fighting impedance composite silencer device, which overcomes the shortcomings of the existing technology and effectively solves the problems of inconvenient installation and disassembly and unsatisfactory noise reduction effect.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A fire-fighting impedance composite silencer device includes a silencer frame. An air inlet plate is fixedly connected to the outer wall of one end of the silencer frame by screws, and an exhaust plate is welded to the outer wall of the other end of the silencer frame. An array of guide strips is welded to the inner walls of both sides of the silencer frame, and silencing components are arranged at equal intervals on the outer walls of the guide strips inside the silencer frame.

[0009] Preferably, the sound-absorbing assembly includes a sound-absorbing plate, a filter screen, and sound-absorbing cotton, wherein the sound-absorbing plate is slidably disposed on the outer wall of the guide strip, the filter screen is installed on the top and bottom outer walls of the sound-absorbing plate, and the sound-absorbing cotton is filled inside the sound-absorbing plate.

[0010] Preferably, the silencing assembly further includes a flow guide head, wherein the flow guide head is disposed on one side of the silencing plate, and the silencing plate is located on the side near the air inlet end plate.

[0011] Preferably, a wind speed sensor is fixedly connected to one outer wall of the air inlet end plate by screws, and a noise sensor is fixedly connected to the other outer wall of the air outlet end plate by screws.

[0012] Preferably, a sealing cover is provided on one side of the outer wall of the air inlet end plate, and the sealing cover is fixedly connected to one end of the outer wall of the silencer frame by screws.

[0013] Preferably, mounting bases are installed at the bottom of both outer walls of the sound-absorbing frame.

[0014] Preferably, both the air inlet end plate and the air outlet end plate have lifting rings welded to their top outer walls.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The fire-fighting impedance composite silencer device designed in this paper is equipped with a sliding connection structure of guide strip and silencer component. The silencer component is slidably mounted on the guide strip through the silencer plate, which makes the installation and disassembly of the silencer component more convenient. When maintaining or replacing it, it can be slid out along the guide strip without tools, which greatly improves the maintenance efficiency and solves the problem of cumbersome installation and disassembly.

[0017] 2. The fire-fighting impedance composite silencer device designed in this paper adopts an impedance composite silencing design. The silencer component is filled with sound-absorbing cotton, and the sound-absorbing plate and filter screen form an impedance composite structure. It can absorb noise through the sound-absorbing cotton and reduce noise through the reflection and interference of the sound-absorbing plate and filter screen. It has a good silencing effect on noise of different frequencies and improves the silencing efficiency. In addition, the filter screen set on the silencer component can effectively filter dust and debris in the airflow, reduce the accumulation of dust and debris inside the silencer, extend the service life of the equipment, and ensure the stability of the silencing effect. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a fire-fighting impedance composite silencer device proposed in this utility model.

[0019] Figure 2 This is a schematic diagram showing the overall structure of a fire-fighting impedance composite silencer device proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the internal connection structure of the silencer frame of a fire-fighting impedance composite silencer device proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the silencing component structure of a fire-fighting impedance composite silencer device proposed in this utility model.

[0022] In the diagram: 1. Silencing frame; 2. Air inlet end plate; 3. Air outlet end plate; 4. Guide strip; 5. Silencing assembly; 51. Silencing plate; 52. Filter screen; 53. Silencing cotton; 54. Air guide head; 6. Wind speed sensor; 7. Noise sensor; 8. Sealing cover; 9. Mounting base; 10. Lifting ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-4 Example 1: A fire-fighting impedance composite silencer device includes a silencer frame 1. An air inlet plate 2 is fixedly connected to the outer wall of one end of the silencer frame 1 by screws, and an exhaust plate 3 is welded to the outer wall of the other end of the silencer frame 1. An array of guide strips 4 are welded to the inner walls of both sides of the silencer frame 1, and silencing components 5 are arranged at equal intervals on the outer wall of the guide strips 4 inside the silencer frame 1. A wind speed sensor 6 is fixedly connected to the outer wall of one side of the air inlet plate 2 by screws, and a noise sensor 7 is fixedly connected to the outer wall of the other side of the exhaust plate 3 by screws.

[0025] The silencer frame 1 serves as the main frame of the entire device, providing a mounting base for other components. The air inlet plate 2 and air outlet plate 3 are installed at opposite ends of the silencer frame 1, forming airflow channels. The guide strip 4 provides a sliding track for the silencer assembly 5, facilitating its installation and removal. The silencer assembly 5, the core component for achieving noise reduction, is evenly distributed within the silencer frame 1, effectively reducing the noise of the passing airflow. The wind speed sensor 6 and noise sensor 7 are used to detect the wind speed and noise levels at the air inlet and outlet ends, respectively, enabling real-time monitoring of the silencer's operating status.

[0026] In this embodiment, a sliding connection structure is provided between the guide bar 4 and the noise reduction component 5. The noise reduction component 5 is slidably mounted on the guide bar 4 via the noise reduction plate 51, making the installation and disassembly of the noise reduction component 5 more convenient. When maintaining or replacing it, it can be slid out along the guide bar 4 without tools, which greatly improves maintenance efficiency and solves the problem of cumbersome installation and disassembly.

[0027] In embodiment 2, the noise reduction assembly 5 includes a noise reduction plate 51, a filter screen 52, and noise reduction cotton 53. The noise reduction plate 51 is slidably disposed on the outer wall of the guide strip 4. The filter screen 52 is installed on the top and bottom outer walls of the noise reduction plate 51. The noise reduction cotton 53 is filled inside the noise reduction plate 51. The noise reduction assembly 5 also includes a flow guide head 54, which is disposed on one side of the noise reduction plate 51 and on the side of the noise reduction plate 51 close to the air inlet end plate 2.

[0028] The silencer plate 51 serves as the supporting structure for the silencer assembly 5 and is slidably installed via the guide strip 4. The filter screen 52 filters dust and debris from the airflow, preventing them from entering the silencer. Sound-absorbing cotton 53 fills the interior of the silencer plate 51, reducing noise by absorbing sound waves. The airflow guide head 54 is located on the air inlet side of the silencer plate 51, guiding the airflow, reducing airflow resistance, and improving airflow efficiency.

[0029] In this embodiment, an impedance composite silencing design is adopted. The silencing component 5 is filled with sound-absorbing cotton 53. At the same time, the sound-absorbing plate 51 and the filter screen 52 form an impedance composite structure. It can absorb noise through the sound-absorbing cotton 53 and reduce noise through the reflection and interference of the sound-absorbing plate 51 and the filter screen 52. It has a good silencing effect on noise of different frequencies and improves the silencing efficiency. In addition, the filter screen 52 set on the silencing component 5 can effectively filter dust and debris in the airflow, reduce the accumulation of dust and debris inside the silencer, extend the service life of the equipment, and ensure the stability of the silencing effect.

[0030] A sealing cover 8 is provided on one side of the outer wall of the air inlet end plate 2, and the sealing cover 8 is fixedly connected to one end of the outer wall of the silencer frame 1 by screws. Mounting bases 9 are installed at the bottom of both sides of the outer wall of the silencer frame 1. Lifting rings 10 are welded to the top outer walls of the air inlet end plate 2 and the air outlet end plate 3.

[0031] The sealing cover 8 is used to seal the connection between the air inlet end plate 2 and the silencer frame 1 to prevent airflow leakage. The mounting base 9 is used to install the silencer device on the fire-fighting equipment, and the lifting ring 10 facilitates hoisting and handling.

[0032] Working principle: The airflow requiring noise reduction enters the silencer frame 1 through the inlet end plate 2. It first passes through the guide head 54 of the silencer assembly 5, which guides the airflow to ensure it flows evenly through the assembly. As the airflow passes through the silencer assembly 5, the filter screen 52 filters out dust and debris. The impedance composite structure formed by the sound-absorbing cotton 53 and the sound-absorbing plate 51 absorbs, reflects, and interferes with the sound waves, reducing noise. The treated airflow is then discharged from the exhaust end plate 3.

[0033] During operation, the wind speed sensor 6 and noise sensor 7 continuously monitor the wind speed and noise levels at the air inlet and outlet, transmitting the data to the fire control system for real-time monitoring of the silencer's operating status. When maintenance or replacement of the silencer component 5 is required, the sealing cover 8 is opened, the silencer component 5 is slid out along the guide bar 4 for cleaning or replacement, and then slid back in along the guide bar 4 for installation. Through its rational structural design, the entire device achieves convenient installation and disassembly of the silencer component, efficient noise reduction, and effective filtration of dust and debris in the airflow, thus improving the practicality and reliability of the fire silencer system.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fire-fighting resistance composite muffler device comprising a muffling frame (1), characterized in that, One end of the silencing frame (1) is fixedly connected to an air inlet plate (2) by screws, and the other end of the silencing frame (1) is welded to an exhaust plate (3). The inner walls on both sides of the silencing frame (1) are welded with arrayed guide strips (4), and the interior of the silencing frame (1) is provided with equally spaced sound-absorbing components (5) on the outer wall of the guide strips (4).

2. The impedance-composite muffler device for fire fighting according to claim 1, wherein The noise reduction assembly (5) includes a noise reduction plate (51), a filter screen (52), and noise reduction cotton (53). The noise reduction plate (51) is slidably disposed on the outer wall of the guide strip (4), the filter screen (52) is installed on the top and bottom outer walls of the noise reduction plate (51), and the noise reduction cotton (53) is filled inside the noise reduction plate (51).

3. The impedance-composite muffler device for fire fighting according to claim 1, wherein The silencing component (5) also includes a guide head (54), wherein the guide head (54) is disposed on one side of the silencing plate (51), and the silencing plate (51) is located on the side close to the air inlet end plate (2).

4. The impedance-composite muffler device for fire fighting according to claim 1, wherein A wind speed sensor (6) is fixedly connected to one side of the outer wall of the air inlet end plate (2) by screws, and a noise sensor (7) is fixedly connected to the other side of the outer wall of the air outlet end plate (3) by screws.

5. The impedance-composite muffler device for fire fighting according to claim 1, wherein A sealing cover (8) is provided on one side of the outer wall of the air inlet end plate (2), and the sealing cover (8) is fixedly connected to one end of the outer wall of the soundproof frame (1) by screws.

6. The impedance-composite muffler device for fire fighting according to claim 1, wherein Mounting bases (9) are installed at the bottom of both outer walls of the silencing frame (1).

7. The impedance-composite muffler device for fire fighting according to claim 1, wherein The top outer walls of the air inlet end plate (2) and the air outlet end plate (3) are both welded with lifting rings (10).

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