Pipeline type silencer

Abstract

The utility model relates to the technical field of pipeline noise reduction, and discloses a pipeline type silencer which comprises a silencer shell, an external air inlet and an external air outlet, and further comprises a built-in protective shell arranged at the right end of the inner side of the silencer shell, a noise reduction pipe fixedly installed at the right end of the inner side of the built-in protective shell, and an air outlet arranged at the right end of the inner side of the built-in protective shell. A curve silencing pipe is fixedly arranged on the left end face of the built-in protection shell. The fastening shells are fixedly arranged at the left end and the right end of the silencer shell respectively; the driving motor is fixedly arranged on the inner side of the rear end of the fastening shell; second connecting discs are arranged at the upper end and the lower end of the first connecting disc correspondingly, and the first connecting disc is installed at the output end of the driving motor; the adjusting rod is fixedly arranged in the middle of the front end face of the second connecting disc, and a fastening assembly is installed on the outer side of the adjusting rod. According to the pipeline type silencer, pipelines with different widths within a certain range can be conveniently and rapidly fastened and installed, and meanwhile the silencer can be stably fixed to the middle of a ventilation pipe.

Description

Technical Field

[0001] The utility model relates to the field of pipeline silencers, in particular to a pipeline silencer. Background Art

[0002] Pipeline silencers are mainly used for the effective silencing of steam emissions from thermal equipment such as boilers and turbines in the power generation sector. They are also widely used in boiler steam emissions and other gas silencing emissions in industries such as petroleum, chemical, metallurgy, and textiles. Silencers are devices that prevent sound propagation while allowing airflow to pass, and are an important measure to eliminate the dynamic noise of steam emissions.

[0003] During the installation of the pipe silencer, it is necessary to fix it in the middle of the pipe so that the airflow passing through the pipe can be discharged from the silencer with silence. However, some pipe silencers on the market are customized for special pipes. After the pipes are replaced, they are not suitable for installation in existing pipes, which increases the cost. Therefore, a pipe silencer is proposed. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a pipe-type silencer, which can be used to conveniently fasten and install pipes of different widths within a certain range, thereby reducing the cost of use, and at the same time can more stably fix the silencer in the middle of the ventilation pipe.

[0006] Technical Solution

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A pipe type silencer comprises a silencer housing, an external air inlet and an external air outlet, and further comprises:

[0009] A built-in protective shell is arranged at the inner right end of the muffler shell, and a muffler pipe is fixedly installed at the inner right end of the built-in protective shell, and a curved muffler pipe is fixedly arranged at the left end surface of the built-in protective shell;

[0010] A fastening shell, which is fixedly arranged at the left and right ends of the muffler shell respectively;

[0011] A driving motor is fixedly arranged on the inner side of the rear end of the fastening housing;

[0012] The first connection disk has second connection disks at its upper and lower ends respectively and is installed at the output end of the driving motor;

[0013] The adjusting rod is fixedly arranged at the middle part of the front end surface of the second connecting plate, and a fastening component is installed on the outer side of the adjusting rod.

[0014] As a preferred technical solution of the utility model, sound diffusion holes are opened at equal intervals on the surface of the silencer pipe, and a connecting bolt is fixedly arranged on the right end of the silencer pipe, the outer side of the connecting bolt is connected to an external air inlet by an external thread, and a sealing gasket is fixedly arranged at the connection between the external air inlet and the silencer pipe.

[0015] As a preferred technical solution of the utility model, the fastening assembly includes a first connecting plate, a first fastening block, a second connecting plate and a second fastening block;

[0016] A first connecting plate is arranged outside the front end of the adjusting rod, and a first fastening block is fixedly installed in the middle of the rear end surface of the first connecting plate;

[0017] The second connecting plate is installed on the outer side of the rear end of the adjusting rod, and a second fastening block is fixedly arranged in the middle of the front end surface of the second connecting plate.

[0018] As a preferred technical solution of the present invention, the first connection disk is meshed with the second connection disk, and the second connection disk is symmetrically arranged up and down based on the vertical center axis of the first connection disk.

[0019] As a preferred technical solution of the utility model, the first connecting plate is connected to the external thread of the adjusting rod, and is symmetrically arranged with the second connecting plate based on the vertical center axis of the adjusting rod.

[0020] As a preferred technical solution of the present utility model, the first fastening block and the second fastening block are both tightly abutted against the external air inlet.

[0021] Beneficial Effects

[0022] Compared with the prior art, the utility model provides a pipeline type silencer, which has the following beneficial effects:

[0023] This kind of pipe type silencer can conveniently fasten and install pipes of different widths within a certain range through the first fastening block and the second connecting plate, thereby reducing the cost of use. At the same time, the silencer can be more stably fixed in the middle of the ventilation pipe through the second connecting plate and the adjusting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0025] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0026] Figure 3 It is a schematic diagram of the side cross-sectional structure of the connection between the first fastening block and the external air inlet of the utility model.

[0027] In the figure: 1. silencer shell; 2. built-in protective shell; 3. silencer pipe; 31. sound diffusion hole; 32. connecting bolt; 33. sealing gasket; 4. external air inlet; 5. curved silencer pipe; 6. external air outlet; 7. fastening shell; 80. driving motor; 81. first connecting plate; 90. second connecting plate; 91. adjusting rod; 101. first connecting plate; 102. first fastening block; 103. second connecting plate; 104. second fastening block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] See also Figure 1-3 The utility model provides a technical solution: including a muffler shell 1, an external air inlet 4 and an external air outlet 6, wherein the muffler shell 1 is used to provide protection for internal components, the external air inlet 4 and the external air outlet 6 are both connected to the external exhaust duct, the external air inlet 4 is used to provide the function of introducing airflow, the external air outlet 6 is used to discharge the airflow after silencing, and the external air inlet 4 and the external air outlet 6 are both connected to the external pipe using a flange ring.

[0031] In this example, see Figure 1 and Figure 2A built-in protective shell 2 is fixedly installed on the right end of the inner part of the silencer shell 1, and a silencer pipe 3 is fixedly installed on the right side of the inner part of the built-in protective shell 2. Sound-scattering holes 31 are opened at equal intervals on the surface of the silencer pipe 3. Secondly, a connecting bolt 32 is fixedly installed on the right end face of the silencer pipe 3. The outer side of the right end of the connecting bolt 32 is connected to an external air inlet 4 through an external thread. At the same time, a sealing gasket 33 is fixedly installed at the connection between the external air inlet 4 and the silencer pipe 3. A curved silencer pipe 5 is fixedly installed on the output end of the built-in protective shell 2. The left end of the curved silencer pipe 5 is connected to an external air outlet 6. The connection method of the curved silencer pipe 5 and the external air outlet 6 is the same as the connection method of the connecting bolt 32 and the external air inlet 4. In the figure, when the external air inlet 4 is connected to the connecting bolt 32 through the external thread, the sealing gasket 33 will provide a sealing effect between the external air inlet 4 and the silencer 3. After the external air inlet 4 discharges the airflow into the interior of the silencer 3, the sound diffusion holes 31 on the surface of the silencer 3 will provide the first silencer treatment for the airflow, and then the airflow is input into the interior of the bend silencer 5, and the bend silencer 5 provides the second silencer treatment for the airflow, because the interior of the bend silencer 5 is provided with multiple turning paths, and sound-absorbing materials are provided at the bends, so that the airflow can be silenced when it collides, and finally the bend silencer 5 will discharge the silenced airflow through the external air outlet 6.

[0032] For further information, see Figure 1 , Figure 2 and Figure 3, the fastening shell 7 is fixedly arranged on the left and right sides of the muffler shell 1 respectively, and a driving motor 80 is fixedly installed on the inner side of the middle part of the rear end of the fastening shell 7, and the output end of the driving motor 80 is connected to the first connecting plate 81, and the upper and lower ends of the first connecting plate 81 are meshed and connected with the second connecting plate 90, and the front end surface of the second connecting plate 90 is fixedly installed with an adjusting rod 91, and the outer side of the adjusting rod 91 is installed with a fastening component, and the fastening component is composed of a first connecting plate 101, a first fastening block 102, a second connecting plate 103 and a second fastening block 104. The first connecting plate 101 is arranged on the outer side of the front end of the adjusting rod 91 and is connected with its external thread, and the rear end surface of the first connecting plate 101 is fixedly installed with the first fastening block 102, and the outer side of the rear end of the adjusting rod 91 is provided with a second connecting plate 103 and is connected with its external thread, and the front end of the second connecting plate 103 A second fastening block 104 is fixedly installed on the surface. During use, after the external air inlet 4 is installed, the first connecting plate 81 is rotated by turning on the driving motor 80, and the first connecting plate 81 is engaged with the second connecting plate 90, so that the second connecting plate 90 can rotate synchronously, and then the second connecting plate 90 can drive the adjusting rod 91 to rotate. Because the adjusting rod 91 is respectively connected to the first connecting plate 101 and the second connecting plate 103 with external threads, and the threads of the adjusting rod 91 and the first connecting plate 101 and the second connecting plate 103 are oppositely arranged, when the adjusting rod 91 rotates, the first connecting plate 101 and the second connecting plate 103 will respectively drive the first fastening block 102 and the second fastening block 104 to clamp the external air inlet 4 tightly, so that the muffler housing 1 is stably fixed in the middle of the external air inlet 4 and the external air outlet 6.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe-type silencer, comprising a silencer housing (1), an external air inlet (4) and an external air outlet (6), characterized in that: Also includes: A built-in protective shell (2) is arranged at the inner right end of the muffler outer shell (1), and a muffler pipe (3) is fixedly installed at the inner right end of the built-in protective shell (2), and a curved muffler pipe (5) is fixedly arranged at the left end surface of the built-in protective shell (2); A fastening shell (7) which is fixedly disposed at the left and right ends of the muffler shell (1); A driving motor (80) is fixedly disposed on the inner side of the rear end of the fastening housing (7); A first connection disk (81) having second connection disks (90) disposed at its upper and lower ends respectively and mounted at the output end of the drive motor (80); An adjusting rod (91) is fixedly arranged at the middle of the front end surface of the second connecting plate (90), and a fastening assembly is installed on the outer side of the adjusting rod (91).

2. A pipe type silencer according to claim 1, characterized in that: The surface of the silencer pipe (3) is provided with sound diffusion holes (31) at equal intervals, and a connecting bolt (32) is fixedly provided at the right end of the silencer pipe (3), the outer side of the connecting bolt (32) is connected to an external air inlet (4) through an external thread, and a sealing gasket (33) is fixedly provided at the connection between the external air inlet (4) and the silencer pipe (3).

3. A pipe type silencer according to claim 1, characterized in that: The fastening assembly comprises a first connecting plate (101), a first fastening block (102), a second connecting plate (103) and a second fastening block (104); A first connecting plate (101) is arranged outside the front end of the adjusting rod (91), and a first fastening block (102) is fixedly mounted in the middle of the rear end surface of the first connecting plate (101); The second connecting plate (103) is installed on the outer side of the rear end of the adjusting rod (91), and a second fastening block (104) is fixedly arranged in the middle of the front end surface of the second connecting plate (103).

4. A pipe type silencer according to claim 1, characterized in that: The first connection disk (81) is meshed with the second connection disk (90), and the second connection disk (90) is symmetrically arranged in an upper and lower direction based on the vertical center axis of the first connection disk (81).

5. A pipe type silencer according to claim 3, characterized in that: The first connecting plate (101) is externally threadedly connected to the adjusting rod (91), and is symmetrically arranged with the second connecting plate (103) based on the vertical center axis of the adjusting rod (91) in front and back directions.

6. A pipe type silencer according to claim 3, characterized in that: The first fastening block (102) and the second fastening block (104) are both tightly abutted against the external air inlet (4).

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