Parallel silencer suitable for equipment container

Abstract

The utility model discloses a parallel type silencer suitable for an equipment container, which comprises a shell, a porous part is arranged in the shell, an inner cavity of the shell is provided with a pressure reduction cavity outside the porous part, the pressure reduction cavity can be used for releasing internal energy of high-temperature and high-pressure gas, and the pressure reduction cavity is communicated with an inner cavity of the porous part. And high-temperature and high-pressure waste gas is discharged outwards after sequentially passing through the depressurization cavity and the porous component. The pressure reduction cavity is formed in the shell, so that external high-temperature and high-pressure waste gas firstly enters the pressure reduction cavity, the pressure of the waste gas is reduced, internal energy of the waste gas is released, the waste gas is rapidly cooled, the direct influence of high temperature on the porous component is reduced, and meanwhile, the reduction of the pressure is also beneficial to slowing down thermal expansion and contraction caused by temperature change; and the stability of the porous component structure can be maintained, so that the problem that the performance of the silencer is reduced due to high temperature and high pressure in the prior art is solved.

Description

Technical Field

[0001] The present application relates to the technical field of mufflers, and in particular to a parallel muffler suitable for equipment containers. Background Art

[0002] An equipment container refers to a box used to install a combination of various equipment. The equipment inside it generally includes a generator set. When the generator set is working, a large amount of high-temperature and high-pressure exhaust gas will be generated. When these exhaust gases are discharged, a lot of noise will be generated. Therefore, a muffler is needed to reduce the noise.

[0003] In the prior art, parallel silencers are commonly used to eliminate noise in equipment containers. They use multiple silencer units arranged in parallel. These units work independently and act on sound waves at the same time, thereby eliminating noise more effectively. After searching, a Chinese patent with publication number CN106321406 A discloses a venting silencer, which makes high-pressure gas pass through a multi-stage throttling diffusion structure with small holes, and the flow area of ​​each stage gradually increases to achieve the effect of throttling and reducing pressure, thereby achieving noise reduction. However, the exhaust gas temperature and pressure generated by the generator set are relatively high. After these high-temperature and high-pressure exhaust gases pass through the throttling diffusion structure with small holes, the throttling diffusion structure with small holes absorbs part of the sound energy while reducing the flow rate, which easily leads to the temperature increase of these structures. If the heat dissipation is not sufficient, the throttling diffusion structure with small holes is easy to overheat, resulting in its performance degradation or even damage. Therefore, a parallel silencer suitable for equipment containers is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a parallel silencer suitable for equipment containers to solve the problems raised in the above background technology.

[0005] The present application embodiment adopts the following technical solutions:

[0006] A parallel silencer suitable for an equipment container comprises an outer shell, wherein a porous component is arranged inside the outer shell, and an inner cavity of the outer shell forms a pressure reduction chamber outside the porous component for releasing internal energy of high-temperature and high-pressure gas, wherein the pressure reduction chamber is communicated with the inner cavity of the porous component, and the high-temperature and high-pressure exhaust gas passes through the pressure reduction chamber and the porous component in sequence and is discharged outward.

[0007] Preferably, the shell is cylindrical, and an end cover is fixedly connected to the end surface of the shell, the porous component is arranged inside the shell and fixedly connected to two end covers, and the porous component is coaxially arranged with the shell.

[0008] Preferably, the porous component comprises a tubular fixed body, a surface of the fixed body is provided with a plurality of evenly distributed pores, and the fixed body is connected with the depressurization chamber through the pores.

[0009] Preferably, an air inlet pipe is fixedly connected to the surface of the shell, an air outlet pipe is fixedly connected to the surface of the fixed body, one end of the air outlet pipe extends to the outside of the shell, and one end of the air inlet pipe and the air outlet pipe are fixedly connected to a flange.

[0010] Preferably, a butt-welding needle valve is installed on the surface of the shell, and the butt-welding needle valve is connected to the shell.

[0011] Preferably, the butt-welding needle valve is arranged horizontally, and the angle between the butt-welding needle valve and the axis of the intake pipe is B, and B is 3 degrees.

[0012] Preferably, a mounting bracket is fixedly connected to the end of the outlet pipe surface.

[0013] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0014] In the utility model, a pressure reduction chamber is formed inside the shell so that the external high-temperature and high-pressure exhaust gas first enters the pressure reduction chamber, thereby reducing the exhaust gas pressure and releasing the internal energy of the exhaust gas to quickly cool it down, reducing the direct impact of high temperature on porous components. At the same time, reducing the pressure also helps to slow down the thermal expansion and contraction caused by temperature changes, and helps to maintain the stability of the porous component structure, thereby solving the problem of reduced muffler performance due to high temperature and high pressure in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 : A three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 : A schematic diagram of the top view of the structure of the utility model;

[0018] Figure 3 For: the utility model Figure 2 Schematic diagram of the cross-sectional structure along line AA;

[0019] Figure 4 : A front view structural schematic diagram of the utility model.

[0020] In the figure: 1. outer shell; 2. porous component; 21. fixed body; 22. fine hole; 3. pressure reducing chamber; 4. end cover; 5. air inlet pipe; 6. air outlet pipe; 7. flange; 8. butt-welded needle valve; 9. mounting bracket. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0022] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0023] See also Figure 1-4 The utility model provides a parallel muffler suitable for equipment containers, which is used to be installed on equipment containers for noise reduction, has the effect of reducing the influence of high temperature and high pressure on the muffler, and improving its stability. Technical solution:

[0024] A parallel silencer suitable for equipment containers includes an outer shell 1, a porous component 2 is arranged in the outer shell 1, and the inner cavity of the outer shell 1 forms a pressure reduction chamber 3 outside the porous component 2 for releasing internal energy of high-temperature and high-pressure gas. The pressure reduction chamber 3 is connected to the inner cavity of the porous component 2, and the high-temperature and high-pressure exhaust gas passes through the pressure reduction chamber 3 and the porous component 2 in sequence and is discharged outward.

[0025] Specifically, by forming a pressure reduction chamber 3 inside the outer shell 1, the external high-temperature and high-pressure exhaust gas first enters the pressure reduction chamber 3, so that the exhaust gas pressure is reduced, and the internal energy of the exhaust gas is released, so that it is quickly cooled down, reducing the direct impact of high temperature on the porous component 2. At the same time, reducing the pressure also helps to slow down the thermal expansion and contraction caused by temperature changes, and helps to maintain the stability of the structure of the porous component 2, thereby solving the problem of reduced muffler performance due to high temperature and high pressure in the prior art.

[0026] The outer shell 1 is cylindrical, and the end face of the outer shell 1 is fixedly connected with an end cover 4. The porous component 2 is arranged inside the outer shell 1 and fixedly connected with two end covers 4. The porous component 2 is coaxially arranged with the outer shell 1, and the porous component 2 is installed through the end cover 4. By arranging the porous component 2 coaxially with the outer shell 1, the uniformity of exhaust gas entering the porous component 2 is improved.

[0027] The porous component 2 includes a tubular fixed body 21, and a plurality of evenly distributed fine holes 22 are arranged on the surface of the fixed body 21. The fixed body 21 is connected with the pressure reduction chamber 3 through the fine holes 22. By setting the fine holes 22, the exhaust gas can enter the fixed body 21 through the fine holes 22. At the same time, the fine holes 22 are used to reduce the flow rate of the exhaust gas, thereby further reducing the noise.

[0028] An air inlet pipe 5 is fixedly connected to the surface of the outer shell 1, and an air outlet pipe 6 is fixedly connected to the surface of the fixed body 21. One end of the air outlet pipe 6 extends to the outside of the outer shell 1. One end of the air inlet pipe 5 and the air outlet pipe 6 are fixedly connected to a flange 7. The exhaust gas is introduced into the outer shell 1 through the air inlet pipe 5 and discharged through the air outlet pipe 6. The flange 7 is provided to facilitate the installation and disassembly of the muffler.

[0029] A butt-welded needle valve 8 is installed on the surface of the housing 1, and the butt-welded needle valve 8 is connected to the housing 1. By setting the butt-welded needle valve 8, the exhaust gas composition can be detected in real time, thereby assisting in detecting and monitoring the working status of the generator set.

[0030] The butt-welding needle valve 8 is arranged horizontally, and the angle between the butt-welding needle valve 8 and the axis of the intake pipe 5 is B, and B is 3 degrees.

[0031] A mounting bracket 9 is fixedly connected to the end of the surface of the air outlet pipe 6 .

[0032] Working principle: When the parallel silencer suitable for equipment containers is used, the user first installs the silencer using the mounting bracket 9 and the flange 7. During operation, the high-temperature and high-pressure exhaust gas generated by the external generator set enters the pressure reduction chamber 3 in the outer shell 1 through the air inlet pipe 5, thereby reducing the exhaust gas pressure and releasing the internal energy of the exhaust gas, causing it to cool down quickly, reducing the direct impact of high temperature on the porous component 2. At the same time, reducing the pressure also helps to slow down the thermal expansion and contraction caused by temperature changes, and helps to maintain the stability of the structure of the porous component 2. Subsequently, the exhaust gas enters the fixed body 21 through the fine holes 22 and is discharged from the exhaust pipe 6. In this process, the fine holes 22 reduce the flow rate of the exhaust gas, thereby further reducing the noise, thereby solving the problem of reduced muffler performance due to high temperature and high pressure in the prior art.

[0033] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0034] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A parallel silencer suitable for an equipment container, comprising a housing (1), wherein a porous component (2) is arranged inside the housing (1), characterized in that: The inner cavity of the shell (1) is formed with a pressure reduction chamber (3) outside the porous component (2) for releasing internal energy of the high-temperature and high-pressure gas. The pressure reduction chamber (3) is connected to the inner cavity of the porous component (2). The high-temperature and high-pressure exhaust gas passes through the pressure reduction chamber (3) and the porous component (2) in sequence and is discharged to the outside.

2. A parallel silencer suitable for equipment containers according to claim 1, characterized in that: The outer shell (1) is cylindrical, and an end surface of the outer shell (1) is fixedly connected to an end cover (4). The porous component (2) is arranged inside the outer shell (1) and fixedly connected to two end covers (4). The porous component (2) and the outer shell (1) are arranged coaxially.

3. A parallel silencer suitable for equipment containers according to claim 1, characterized in that: The porous component (2) comprises a tubular fixed body (21), a surface of which is provided with a plurality of evenly distributed fine holes (22), and the fixed body (21) is connected to the pressure reduction chamber (3) via the fine holes (22).

4. A parallel silencer suitable for equipment containers according to claim 3, characterized in that: An air inlet pipe (5) is fixedly connected to the surface of the outer shell (1), an air outlet pipe (6) is fixedly connected to the surface of the fixed body (21), one end of the air outlet pipe (6) extends to the outside of the outer shell (1), and one end of each of the air inlet pipe (5) and the air outlet pipe (6) is fixedly connected to a flange (7).

5. A parallel silencer suitable for equipment containers according to claim 4, characterized in that: A butt-welding needle valve (8) is installed on the surface of the housing (1), and the butt-welding needle valve (8) is in communication with the housing (1).

6. A parallel silencer suitable for equipment containers according to claim 5, characterized in that: The butt-welding needle valve (8) is arranged horizontally, and the angle between the butt-welding needle valve (8) and the axis of the air intake pipe (5) is B, and B is 3 degrees.

7. A parallel silencer suitable for equipment containers according to claim 4, characterized in that: The end of the surface of the air outlet pipe (6) is fixedly connected with a mounting bracket (9).

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