Airflow guide control assembly in electric precipitation silencer

Abstract

The utility model provides an airflow guide control assembly in an electric precipitation silencer, which relates to the technical field of airflow guide control assemblies and comprises a shell, four fixing grooves are arranged on the surface of the shell, fixing frames are arranged on one sides of the four fixing grooves, nine bolt holes are arranged at the bottoms of the four fixing grooves, and a moving frame is arranged on one side of the shell. A fixing plug pin is arranged on one side of the movable frame, a silencer body is arranged in the shell, a top cover is arranged at the top of the silencer body, five sound absorption plates are arranged at the bottom of the top cover, when the sound absorption plates rotate, a straight air flow channel in the silencer body is changed into an oblique air flow channel, and when air flow enters the silencer body, the oblique air flow channel is changed into an oblique air flow channel. According to the angle silencer, airflow can circulate along the oblique airflow flow channel, the oblique airflow flow channel can increase contact between the airflow and the section of the sound absorption plate, so that the flow speed of the airflow is reduced, when the flow speed of the airflow is reduced, generated wind noise is reduced, and the defect that the wind noise cannot be reduced by adjusting airflow guide in the angle silencer is overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to airflow guide control assembly technical field especially relates to a kind of airflow guide control assembly in electric dust removal silencer. BACKGROUND

[0002] According to the China open (announcement) No. CN202971345U discloses a kind of dust remover fan silencer, install between fan and exhaust chimney, including the shell of metal material, the one end of shell is air inlet, air inlet is connected with air inlet flange, the other end of shell is air outlet, air outlet is connected with air outlet flange, shell is equipped with sound-absorbing component, the sound-absorbing component includes sound-absorbing wall that is tightly on the inner wall of shell and sound-absorbing fence that is installed in the cavity of shell, sound-absorbing wall and sound-absorbing fence are by two porous plates and the super fine glass wool that is clamped between plate is composed of superposition.The utility model utilizes the excellent sound-absorbing performance of super fine glass wool to absorb the noise generated by fan, to achieve the purpose of noise reduction.

[0003] The above-mentioned technology and the sound-absorbing grid of prior art cannot adjust the angle after installation, so that the internal sound-absorbing grid cannot reduce the wind noise by adjusting the airflow direction in the silencer. When a large airflow is encountered during use, noise will still be generated. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcoming that the airflow direction in the silencer cannot be adjusted to reduce wind noise in the prior art, and provides a kind of airflow guide control assembly in electric dust removal silencer.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of airflow guide control assembly in electric dust removal silencer, including shell, the surface of shell is equipped with four fixed slots, the side of four fixed slots is equipped with fixed frame, the bottom of four fixed slots is equipped with nine bolt holes, the side of the moving frame of shell is equipped with fixed bolt, the inside of shell is equipped with silencer main body, the top of silencer main body is equipped with top cover, the bottom of top cover is equipped with five sound-absorbing panels, the inside of silencer main body, top cover and sound-absorbing panel is equipped with sound-absorbing cotton, the side of seven sound-absorbing cotton is equipped with punched screen, the side of the rotating shaft of the bottom of five sound-absorbing panels is equipped with pin shaft.

[0006] Preferably, four fixed slots are evenly arranged at both ends of the shell in groups of two, and the vertical central axes of each group of fixed slots are consistent.

[0007] Preferably, nine bolt holes are arranged on the surface of the shell, and the spacing of the nine bolt holes is consistent.

[0008] Preferably, all four fixing brackets are provided on the surface of the muffler body, and the positions of the fixing brackets are consistent with the positions of the fixing grooves on the surface of the outer shell.

[0009] Preferably, the muffler body is installed inside the housing, and the fixing brackets of the muffler body are all installed in the fixing grooves on the surface of the housing.

[0010] Preferably, the perforated mesh is welded to the surface of the outer shell, the top cover and the sound-absorbing plate, and the rotating shaft is welded to the top and bottom surfaces of the sound-absorbing plate. The top cover is fixed to the top of the muffler body by fixing bolts.

[0011] Preferably, the movable frame is fixed to the bottom of the five sound-absorbing panels by five pins, and the fixing pins pass through the movable frame and are installed in the pin holes on the surface of the outer shell.

[0012] Beneficial effects

[0013] In this invention, the muffler body and top cover are installed inside the outer casing. Nine pin holes are provided on the bottom surface of the outer casing. Five sound-absorbing panels are installed inside the muffler body. The rotation shaft of the top surface of the sound-absorbing panels is installed in the top cover, and the rotation shaft of the bottom surface of the sound-absorbing panels is installed in the muffler body, allowing the sound-absorbing panels to rotate. The five sound-absorbing panels are connected together by a movable frame, and a fixing pin is provided on one side of the movable frame. When it is necessary to adjust the airflow direction inside the muffler body, the fixing pin can be moved from the movable frame and the pin. Pull it out of the hole and move the moving frame left and right, so that the moving frame drives the five sound-absorbing panels to rotate. When the sound-absorbing panels rotate, the straight airflow channel inside the muffler body becomes an oblique airflow channel. When the airflow enters the muffler body, the airflow will flow along the oblique airflow channel. The oblique airflow channel increases the cross-sectional contact between the airflow and the sound-absorbing panels, thereby reducing the airflow velocity. When the airflow velocity is reduced, the wind noise generated will be reduced, which solves the shortcomings of not being able to reduce wind noise by adjusting the airflow guidance inside the muffler. Attached Figure Description

[0014] Figure 1 This is an isometric drawing of the present invention;

[0015] Figure 2 This is a partial isometric drawing of the present invention;

[0016] Figure 3 This is a partial lower view of the present invention;

[0017] Figure 4 This is a partial front view of the present invention;

[0018] Figure 5 For the present utility model Figure 4 Sectional view at point AA;

[0019] Figure 6 The utility model discloses a Figure 4 The sectional view of B-B of the utility model;

[0020] Figure 7 The utility model discloses a partial perspective view.

[0021] Legend:

[0022] 1, shell, 2, fixed groove, 3, bolt hole, 4, top cover, 5, muffler main part, 6, fixed frame, 7, punched screen, 8, pin shaft, 9, moving frame, 10, fixed bolt, 11, sound-absorbing cotton, 12, sound-absorbing board, 13, rotating shaft. Specific embodiments

[0023] In order to make the technical means, the creation features, the purposes and the effects of the utility model easy to understand, the following will be further described in combination with specific embodiments and the drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the utility model.

[0024] The specific embodiments of the utility model will be described below in combination with the drawings. Specific embodiment one

[0026] Refer to Figures 1-4A kind of airflow guide control assembly in electric dust removal silencer, including shell 1, the surface of shell 1 is equipped with four fixed slots 2, one side of four fixed slots 2 is equipped with fixed frame 6, the bottom of four fixed slots 2 is equipped with nine latch holes 3, one side of moving frame 9 is equipped with fixed shell 1, the side of moving frame 9 is equipped with fixed latch 10, the inside of shell 1 is equipped with silencer main body 5, the top of silencer main body 5 is equipped with top cover 4, the bottom of top cover 4 is equipped with five sound-absorbing panels 12, the inside of silencer main body 5, top cover 4 and sound-absorbing panel 12 is equipped with sound-absorbing cotton 11, one side of seven sound-absorbing cotton 11 is equipped with punched screen 7, both sides of five sound-absorbing panels 12 are equipped with rotating shaft 13, one side of the rotating shaft 13 of the bottom of five sound-absorbing panels 12 is equipped with pin shaft 8, four fixed slots 2 are evenly set up in the both ends of shell 1 with every two as a group, and the vertical central axis of every group of fixed slots 2 is consistent, nine latch holes 3 are all set up in the surface of shell 1, and the interval of nine latch holes 3 is consistent, four fixed frames 6 are all set up in the surface of silencer main body 5, and the position of fixed frame 6 is consistent with the position of fixed slot 2 of shell 1 surface, silencer main body 5 is installed in shell 1, and the fixed frame 6 of silencer main body 5 is all installed in the fixed slot 2 of the surface of shell 1, punched screen 7 is all welded in the surface of shell 1, top cover 4 and sound-absorbing panel 12, and rotating shaft 13 is all welded in the top surface and bottom surface of sound-absorbing panel 12, top cover 4 is fixed in the top of silencer main body 5 by fixed bolt, moving frame 9 is fixed in the bottom of five sound-absorbing panels 12 by five pin shafts 8, fixed latch 10 is installed in the latch hole 3 of the surface of shell 1 by penetrating moving frame 9.

[0027] The front surface of the shell 1 is provided with four fixing grooves 2, which are evenly arranged at both ends of the shell 1. The shell 1 protects the internal muffler body 5 from being damaged by external impact. The muffler body 5, the sound-absorbing plate 12 and the top cover 4 are internally provided with sound-absorbing cotton 11, which reduces wind noise. The muffler body 5, the sound-absorbing plate 12 and the top cover 4 are welded with punched screens 7 on one side, which fix the sound-absorbing cotton 11. The surface of the sound-absorbing plate 12 is also provided with punching. The five sound-absorbing plates 12 are integrally formed with the rotating shafts 13 on the top surface and the bottom surface. The rotating shafts 13 on the bottom surface of the five sound-absorbing plates 12 are installed in the installation grooves of the muffler body 5. The five sound-absorbing plates 12 are installed in sequence and at equal intervals. After the installation of the five sound-absorbing plates 12, the top cover 4 is placed on the muffler body 5, so that the rotating shafts 13 of the five sound-absorbing plates 12 are installed in the installation grooves on the bottom surface of the top cover 4. The top cover 4 is welded on the muffler body 5, so that the five sound-absorbing plates 12 are fixed in the muffler body 5 by the welded top cover 4. After the installation of the five sound-absorbing plates 12, the rotating shafts 13 on the top surface and the bottom surface can be used for rotation. Four fixing frames 6 are arranged on the outer surface of the muffler body 5, and the positions of the fixing frames 6 correspond to the fixing grooves 2 on the surface of the shell 1. The muffler body 5 and the top cover 4 are installed in the shell 1, so that the fixing frames 6 of the muffler body 5 are installed in the fixing grooves 2 of the shell 1. The muffler body 5 is fixed in the shell 1 by fixing bolts. Nine bolt holes 3 are arranged on the surface of the bottom end of the shell 1. The five sound-absorbing plates 12 are connected together by a moving frame 9. The moving frame 9 is fixed to the bottom surface of the five sound-absorbing plates 12 by a pin shaft 8. When the moving frame 9 is moved, the five sound-absorbing plates 12 can be rotated. A fixed bolt 10 is arranged on one side of the moving frame 9. When the rotating position is optimal, the fixed bolt 10 can be inserted through the moving frame 9 and installed in the bolt hole 3. The moving frame 9 and the sound-absorbing plate 12 are fixed by the fixed bolt 10. In use, the shell 1 is installed on the air outlet by fixing bolts. Since the shell 1 and the muffler body 5 are closely installed and combined together, when the airflow enters the shell 1 and continues to flow forward, the airflow enters the muffler body 5 inside the shell 1. When the airflow enters the muffler body 5, the sound-absorbing cotton 11 inside the muffler body 5, the sound-absorbing plate 12 and the top cover 4 absorbs the sound wave energy generated by the airflow, thereby reducing noise. When it is necessary to adjust the airflow direction in the muffler body 5 to further reduce sound noise, the fixed bolt 10 can be pulled out from the moving frame 9 and the bolt hole 3. The moving frame 9 is moved left and right, so that the moving frame 9 drives the five sound-absorbing plates 12 to move. Since the rotating shafts 13 on the top surface and the bottom surface of the sound-absorbing plate 12 are installed in the muffler body 5 and the top cover 4, when the moving frame 9 is moved, the sound-absorbing plate 12 is rotated. When the sound-absorbing plate 12 is rotated, the sound-absorbing plate 12 is inclined. When the sound-absorbing plate 12 is inclined, the straight airflow channel in the muffler body 5 becomes an inclined airflow channel.When the air flow enters the inside of the muffler main body 5, the air flow will flow along the oblique air flow channel, the oblique air flow channel will increase the cross section contact between the air flow and the sound absorbing plate 12, the speed of the air flow is reduced through the oblique sound absorbing plate 12, when the air flow speed is reduced, the sound wave energy generated by the air flow is reduced, thereby further reducing the noise. Specific embodiment two:

[0029] With reference to Figures 1-7 , a kind of air flow guide control assembly in electric dust removal muffler, further based on the basic structure in specific embodiment one, filter screen can be provided on one side of shell 1, filter screen is fixed on the surface of shell 1 by four fixed bolts, fixed bolt is set up in each corner of shell 1, so that when using, foreign matter is prevented from entering the inside of shell 1 muffler main body 5 by filter screen, to reduce the noise reduction effect of muffler main body 5.

[0030] In summary:

[0031] 1, adopt the inside of the muffler main body 5 and top cover 4 installation in shell 1, nine plug holes 3 are arranged on the surface of the bottom end of shell 1, five sound absorbing plates 12 are arranged in the inside of muffler main body 5, the rotating shaft 13 of the top surface of sound absorbing plate 12 is arranged in top cover 4, and the rotating shaft 13 of the bottom surface of sound absorbing plate 12 is arranged in muffler main body 5, so that sound absorbing plate 12 can rotate, and the five sound absorbing plates 12 are connected together by moving frame 9, and one side of moving frame 9 is provided with fixed plug 10, when the air flow guide inside muffler main body 5 needs to be adjusted, fixed plug 10 can be pulled out from moving frame 9 and plug hole 3, and moving frame 9 can be moved left and right, so that moving frame 9 drives five sound absorbing plates 12 to rotate, when sound absorbing plate 12 rotates, the straight air flow channel in the inside of muffler main body 5 changes into oblique air flow channel, when the air flow enters the inside of muffler main body 5, the air flow will flow along the oblique air flow channel, the oblique air flow channel can increase the cross section contact between the air flow and sound absorbing plate 12, so as to reduce the flow rate of the air flow, when the flow rate of the air flow is reduced, the wind noise generated is reduced, and the problem that the air flow guide inside the angle-adjustable muffler cannot be used to reduce the wind noise is solved.

[0032] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under", can include that first and second features are directly contacted, also can include that first and second features are not directly contacted but are contacted through other features between them.Moreover, first feature is in second feature "on", "upper" and "upper surface", includes that first feature is directly above and obliquely above second feature, or only indicates that the horizontal height of first feature is higher than second feature.First feature is in second feature "under", "lower" and "lower surface", includes that first feature is directly below and obliquely below second feature, or only indicates that the horizontal height of first feature is less than second feature.

[0033] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A gas flow direction control assembly in an electric precipitation silencer comprising a housing (1), characterized in that: The surface of the shell (1) is provided with four fixed slots (2), one side of the four fixed slots (2) is provided with a fixed frame (6), the bottom of the four fixed slots (2) is provided with nine pin holes (3), one side of the shell (1) is provided with a moving frame (9), one side of the moving frame (9) is provided with a fixed pin (10), the inside of the shell (1) is provided with a muffler body (5), the top of the muffler body (5) is provided with a top cover (4), the bottom of the top cover (4) is provided with five sound absorption plates (12), the inside of the muffler body (5), the top cover (4) and the sound absorption plate (12) is provided with sound absorption cotton (11), one side of the seven sound absorption cotton (11) is provided with a punched screen (7), both sides of the five sound absorption plates (12) are provided with a rotating shaft (13), one side of the rotating shaft (13) at the bottom of the five sound absorption plates (12) is provided with a pin shaft (8).

2. A gas flow direction control assembly in an electric dust precipitator silencer according to claim 1, characterized in that: Four fixed slots (2) are evenly arranged at both ends of the shell (1) in groups of two, and the vertical central axes of each group of fixed slots (2) are consistent.

3. A gas flow direction control assembly in an electric dust precipitator silencer according to claim 1, wherein: Nine pin holes (3) are arranged on the surface of the shell (1), and the spacing of the nine pin holes (3) is consistent.

4. The airflow direction control assembly in an electric dust precipitator silencer of claim 1, wherein: Four fixed frames (6) are arranged on the surface of the muffler body (5), and the fixed frames (6) are arranged in a straight line with the fixed slots (2) on the surface of the shell (1).

5. The airflow direction control assembly in an electric dust precipitator silencer of claim 1, wherein: The muffler body (5) is installed in the shell (1), and the fixed frames (6) of the muffler body (5) are installed in the fixed slots (2) on the surface of the shell (1).

6. A gas flow direction control assembly in an electric dust precipitator silencer according to claim 1, wherein: The punched screens (7) are welded on the surfaces of the shell (1), the top cover (4) and the sound absorption plate (12), and the rotating shafts (13) are welded on the top and bottom surfaces of the sound absorption plate (12), and the top cover (4) is fixed on the top of the muffler body (5) by fixed bolts.

7. The airflow direction control assembly in an electric dust precipitator silencer of claim 1, wherein: The moving frame (9) is fixed on the bottom of the five sound absorption plates (12) by five pin shafts (8), and the fixed pin (10) penetrates the moving frame (9) and is installed in the pin hole (3) on the surface of the shell (1).

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