Broadband noise reduction silencer

Abstract

The utility model discloses a broadband noise reduction silencer which comprises a rectangular cylindrical barrel extending transversely, a plurality of air inlet connecting through holes are formed in a right side plate of the cylindrical barrel, and a plurality of air inlet connectors are welded and fixed to the right side plate of the cylindrical barrel. The interiors of the air inlet connectors are inserted into the corresponding air inlet connecting through holes and are communicated with the cylindrical barrel; a main air outlet through hole is formed in the middle of a left side plate of the cylindrical barrel, the right end of a main air outlet connector is clamped in the main air outlet through hole, the outer side wall of the right end of the main air outlet connector is welded and fixed to the inner side wall of the main air outlet through hole, and the main air outlet connector is communicated with the cylindrical barrel. According to the invention, the multiple air inlet connectors are arranged, so that communication and noise reduction of multiple pipelines can be realized, meanwhile, the filter plate can be used for filtering entering air, and the air inlet pipe is convenient to mount, dismount and replace and good in use effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan equipment technical field more specifically, and it is a kind of broadband noise eliminator. BACKGROUND

[0002] The noise of the air outlet of the existing fan is very large when connecting pipeline, therefore, it is generally necessary to set up muffler, the existing muffler can generally realize broadband noise reduction, it can realize the noise reduction effect of high frequency and low frequency noise, but the existing muffler is generally single pipeline connection, cannot realize multi-path communication noise reduction, it can only set up a muffler at the air outlet of one-way pipeline, and its cost is high, and the effect is limited.

[0003] Meanwhile, the existing muffler cannot filter the entering gas, and the filtering effect is limited. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the insufficient of prior art, provide a kind of broadband noise eliminator, it has multiple air inlet connecting head, can realize the communication noise reduction of multiple pipeline, simultaneously, it has filter plate and can filter the entering gas, and it is easy to install and dismount, convenient to replace, and the use effect is good.

[0005] The utility model solves the technical problem of the scheme:

[0006] A kind of broadband noise eliminator, including the transverse extension of rectangular column body, the right side plate of the column body is formed with multiple air inlet connecting through holes, multiple air inlet connecting head is welded and fixed on the right side plate of column body, the inside of air inlet connecting head is inserted into corresponding air inlet connecting through hole and is connected with column body;

[0007] The middle part of the left side plate of the column body is formed with total air outlet through hole, the right end of total air outlet connecting head is clamped in total air outlet through hole, the right end outside wall of total air outlet connecting head is welded and fixed on the inner side wall of total air outlet through hole, and total air outlet connecting head is communicated with column body;

[0008] The inner side wall of the column body is fixed with the inner cylinder of porous plate support, and the annular cavity formed between the inner cylinder and the inner side wall of the column body is filled with sound-absorbing material.

[0009] The sound-absorbing material is rock wool.

[0010] The inside of the left side of the right side plate of the column body is provided with right soundproof board, the outside wall of right soundproof board is welded and fixed on the inner side wall of column body, right soundproof board is formed with internal connecting through hole aligned with corresponding air inlet connecting through hole, and the inner end of air inlet connecting head is inserted into corresponding internal connecting through hole, and the outer side wall thereof is pressed against the inner side wall of corresponding internal connecting through hole.

[0011] The inner outer side wall of the air inlet connector is welded and fixed with the inner side wall of the corresponding air inlet connecting through hole.

[0012] The right end surface of the inner cylinder body is pressed against and welded and fixed on the left side wall of the right sound insulation plate.

[0013] The inner cylinder body comprises a left part and a right part, and a radial bending edge is formed at the close end of the two inner cylinder bodies, the outer wall surface of the radial bending edge is welded and fixed on the inner side wall of the cylindrical cylinder body, the right end surface of the right part of the inner cylinder body is pressed against and welded and fixed on the left side wall of the right sound insulation plate, and the left end surface of the left part of the inner cylinder body is pressed against and welded and fixed on the edge of the right side wall of the left side plate of the cylindrical cylinder body.

[0014] The upper part and the lower part between the two inner cylinder bodies are formed with insertion grooves, the inner side wall of the insertion grooves is fixed with a sealing elastic layer, the upper part of the filter plate is inserted into the upper insertion groove, the sealing elastic layer on the inner side wall of the upper insertion groove is pressed against the outer side wall of the upper part of the filter plate, the outer side wall of the bottom of the filter plate is formed with a rectangular frame-shaped sealing groove, and the bottom of the filter plate is inserted into the lower insertion groove, and the lower sealing elastic layer is nested in the sealing groove.

[0015] The front and rear side walls of the filter plate are close to the inner side walls of the front and rear side plates of the cylindrical cylinder body, the middle part of the filter plate is formed with a center through groove, and the filter screen is in the center through groove and is fixed on the filter plate and covers the center through groove.

[0016] The prominent effect of the utility model is:

[0017] It has multiple air inlet connectors, can realize the connection and noise reduction of multiple pipelines, and has a filter plate for filtering the entering gas, and is convenient to install, disassemble, replace and use. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a partial structure schematic view of the utility model;

[0019] Figure 2 is Figure 1 a partial enlarged view of another part of

[0020] Figure 3 is Figure 1 a partial enlarged view of another part of

[0021] Figure 4 is a partial top view of the utility model. DETAILED DESCRIPTION

[0022] Embodiment, see as Figures 1 to 4As shown, a wideband noise reduction muffler includes a rectangular transversely extending cylindrical body 10, a plurality of air inlet connecting through holes 11 are formed on the right side plate of the cylindrical body 10, a plurality of air inlet connecting heads 12 are welded and fixed on the right side plate of the cylindrical body 10, the inside of the air inlet connecting head 12 is inserted into the corresponding air inlet connecting through hole 11 and is communicated with the cylindrical body 10;

[0023] A total air outlet through hole 13 is formed in the middle of the left side plate of the cylindrical body 10, the right end of the total air outlet connecting head 14 is clamped in the total air outlet through hole 13, the right end outside wall of the total air outlet connecting head 14 is welded and fixed on the inside wall of the total air outlet through hole 13, and the total air outlet connecting head 14 is communicated with the cylindrical body 10;

[0024] A plurality of perforated plate supported inner cylinders 20 are fixed on the inside wall of the cylindrical body 10 (the perforated plate is used so that it has a noise reduction effect and has a good noise reduction effect on low frequency noise), the annular cavity formed between the inner cylinder 20 and the inside wall of the cylindrical body 10 is filled with sound-absorbing material 1, the sound-absorbing material 1 is rock wool, which can absorb and reduce noise, and it has a good adsorption effect on high frequency and low frequency noise, achieving noise reduction.

[0025] Further, the inside of the left side of the right side plate of the cylindrical body 10 is provided with a right sound insulation plate 15, the outside wall of the right sound insulation plate 15 is welded and fixed on the inside wall of the cylindrical body 10, the right sound insulation plate 15 is formed with an internal connecting through hole aligned with the corresponding air inlet connecting through hole 11, the inner end of the air inlet connecting head 12 is inserted into the corresponding internal connecting through hole, and the outer side wall thereof is pressed against the inner side wall of the corresponding internal connecting through hole and is welded and fixed. The right sound insulation plate 15 improves the connection and support effect of the air inlet connecting head 12.

[0026] Further, the inside of the left side of the right side plate of the cylindrical body 10 is provided with a right sound insulation plate 15, the outside wall of the right sound insulation plate 15 is welded and fixed on the inside wall of the cylindrical body 10, the right sound insulation plate 15 is formed with an internal connecting through hole aligned with the corresponding air inlet connecting through hole 11, the inner end of the air inlet connecting head 12 is inserted into the corresponding internal connecting through hole, and the outer side wall thereof is pressed against the inner side wall of the corresponding internal connecting through hole and is welded and fixed. The right sound insulation plate 15 improves the connection and support effect of the air inlet connecting head 12.

[0027] Further, the inside of the left side of the right side plate of the cylindrical body 10 is provided with a right sound insulation plate 15, the outside wall of the right sound insulation plate 15 is welded and fixed on the inside wall of the cylindrical body 10, the right sound insulation plate 15 is formed with an internal connecting through hole aligned with the corresponding air inlet connecting through hole 11, the inner end of the air inlet connecting head 12 is inserted into the corresponding internal connecting through hole, and the outer side wall thereof is pressed against the inner side wall of the corresponding internal connecting through hole and is welded and fixed. The right sound insulation plate 15 improves the connection and support effect of the air inlet connecting head 12.

[0028] Further, the inside of the left side of the right side plate of the cylindrical body 10 is provided with a right sound insulation plate 15, the outside wall of the right sound insulation plate 15 is welded and fixed on the inside wall of the cylindrical body 10, the right sound insulation plate 15 is formed with an internal connecting through hole aligned with the corresponding air inlet connecting through hole 11, the inner end of the air inlet connecting head 12 is inserted into the corresponding internal connecting through hole, and the outer side wall thereof is pressed against the inner side wall of the corresponding internal connecting through hole and is welded and fixed. The right sound insulation plate 15 improves the connection and support effect of the air inlet connecting head 12.

[0029] The upper part and the lower part between the two inner cylinders 20 are formed with insertion slots 2, the inner side walls of the insertion slots 2 are fixed with sealing elastic layers 3, the upper part of the filter plate 30 is inserted into the upper insertion slot 2, the sealing elastic layer 3 on the inner side wall of the upper insertion slot 2 is pressed against the outer side wall of the upper part of the filter plate 30, the bottom of the filter plate 30 is formed with a rectangular frame-shaped sealing groove, the bottom of the filter plate 30 is inserted into the lower insertion slot 2, and the lower sealing elastic layer 3 is nested in the sealing groove;

[0030] The front and rear side walls of the filter plate 30 are close to the inner side walls of the front and rear side plates of the cylindrical cylinder 10, the middle part of the filter plate 30 is formed with a center through slot, the filter screen 4 is in the center through slot and is fixed on the filter plate 30, and covers the center through slot.

[0031] Further, the top of the filter plate 30 is inserted into the front and rear extending upper insertion slots formed in the middle part of the top plate of the cylindrical cylinder 10, the top end of the filter plate 30 is fixed with front and rear extending upper horizontal fixing plates 31, the upper horizontal fixing plates 31 are pressed against the top surface of the top plate of the cylindrical cylinder 10 and cover the upper insertion slots, the top surface of the upper horizontal fixing plate 31 is fixed with grabbing plates 32 at the front and rear parts, and the middle part of the grabbing plate 32 is formed with a center through hole.

[0032] Further, the bottom surface of the top plate of the cylindrical cylinder 10 at the left side and the right side of the upper insertion slot is welded and fixed with a connecting block 40, the middle part of the connecting block 40 is formed with a vertical screwing through hole, the vertical screwing through hole corresponds to the corresponding upper through hole formed on the top plate of the cylindrical cylinder 10, a fixing block 50 is pressed against the top surface of the top plate of the cylindrical cylinder 10, the middle part of the fixing block 50 is formed with an upper vertical through hole, the screw rod part of a fixing bolt 51 is inserted into the corresponding upper vertical through hole and upper through hole and is screwed into the vertical screwing through hole of the corresponding connecting block 40, the bottom surface of the rotating part of the fixing bolt 51 is pressed against the top surface of the fixing block 50, the bottom surface of the horizontal part formed on the side wall of the fixing block 50 is pressed against the edge top surface of the upper horizontal fixing plate 31, and the bottom surface of the horizontal part is formed with a protruding positioning part which is inserted into the corresponding upper groove formed on the edge top surface of the upper horizontal fixing plate 31.

[0033] Further, a plurality of wind blocking guide plates 6 are arranged in the inner cylinder 20 at the left side of the filter plate 30, the front and rear ends of the wind blocking guide plate 6 are welded and fixed on the inner side walls of the front and rear side plates of the inner cylinder 20 at the left side, the plurality of wind blocking guide plates 6 are vertically arranged, and adjacent two rows of wind blocking guide plates 6 are staggered.

[0034] One row of the wind blocking guide plates 6 is inclined leftward and downward, and the other row of the wind blocking guide plates 6 adjacent to the one row is inclined rightward and downward, and the two rows are staggered, so that the wind blowing to the corresponding wind blocking guide plate 6 realizes bending and other operations, and further realizes noise reduction.

[0035] In use, the embodiment is provided with a plurality of air inlet connectors 12, thereby being able to be connected with a plurality of air outlet ends of flow channels, realizing the processing in the pool, and the filter screen 4 can preliminarily filter the entering air, thereby making the air from the total air outlet connector 14 cleaner.

[0036] The filter plate 30 is convenient to install and dismount, only needs to unscrew the fixing bolt 51, lift the fixing block 50, make the protruding positioning part from the corresponding upper groove of the top surface of the edge part of the upper transverse fixing plate 31, then rotate, make the transverse part of the sidewall of the fixing block 50 no longer press against the top surface of the edge part of the upper transverse fixing plate 31, then, can pull out the filter plate 30 upward, can be replaced and cleaned, very convenient.

[0037] The above is only the preferred embodiment of the present application, it should be pointed out that, for the ordinary skilled in the art, without departing from the technical principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A broadband noise reducer silencer comprising a rectangular transversely extending cylindrical barrel (10) characterised in that: A plurality of air inlet connecting through holes (11) are formed on the right side plate of the cylindrical barrel (10), and a plurality of air inlet connecting heads (12) are welded and fixed on the right side plate of the cylindrical barrel (10), the inside of the air inlet connecting head (12) is inserted into the corresponding air inlet connecting through hole (11) and is communicated with the cylindrical barrel (10); A total air outlet through hole (13) is formed in the middle of the left side plate of the cylindrical barrel (10), the right end of the total air outlet connecting head (14) is clamped in the total air outlet through hole (13), the right end outer wall of the total air outlet connecting head (14) is welded and fixed on the inner wall of the total air outlet through hole (13), and the total air outlet connecting head (14) is communicated with the cylindrical barrel (10); A porous plate supported inner barrel (20) is fixed on the inner wall of the cylindrical barrel (10), and an annular cavity is formed between the inner barrel (20) and the inner wall of the cylindrical barrel (10), and the annular cavity is filled with sound absorbing material (1).

2. A broadband noise canceller according to claim 1, wherein: The sound absorbing material (1) is rock wool.

3. A broadband noise canceller according to claim 1, wherein: The inside of the left side of the right side plate of the cylindrical barrel (10) is provided with a right sound insulation plate (15), the outer wall of the right sound insulation plate (15) is welded and fixed on the inner wall of the cylindrical barrel (10), the right sound insulation plate (15) is formed with an internal connecting through hole aligned with the corresponding air inlet connecting through hole (11), the inner end of the air inlet connecting head (12) is inserted into the corresponding internal connecting through hole, and the outer side wall thereof is pressed against the inner side wall of the corresponding internal connecting through hole.

4. A broadband noise canceller according to claim 1, wherein: The inner side wall of the air inlet connecting head (12) is welded and fixed with the inner side wall of the corresponding air inlet connecting through hole (11).

5. A broadband noise canceller according to claim 3, wherein: The right end face of the inner barrel (20) is pressed against the left side wall of the right sound insulation plate (15) and is welded and fixed.

6. A broadband noise canceller according to claim 3, wherein: The inner barrel (20) includes a left part and a right part, and a radial bending edge is formed at one end of the two inner barrels (20) close to each other, the outer wall surface of the radial bending edge is welded and fixed on the inner wall of the cylindrical barrel (10), the right end face of the right part of the inner barrel (20) is pressed against the left side wall of the right sound insulation plate (15) and is welded and fixed, and the left end face of the left part of the inner barrel (20) is pressed against the edge of the right side wall of the left side plate of the cylindrical barrel (10); An insertion slot (2) is formed at the upper part and the lower part between the two inner barrels (20), a sealing elastic layer (3) is fixed on the inner side wall of the insertion slot (2), the upper part of the filter plate (30) is inserted into the upper insertion slot (2), the sealing elastic layer (3) on the inner side wall of the upper insertion slot (2) is pressed against the upper outer side wall of the filter plate (30), a rectangular frame-shaped sealing groove is formed on the outer side wall of the bottom of the filter plate (30), the bottom of the filter plate (30) is inserted into the lower insertion slot (2), and the lower sealing elastic layer (3) is nested in the sealing groove; The front and rear side walls of the filter plate (30) are close to the inner side walls of the front and rear side plates of the cylindrical barrel (10), a center through slot is formed in the middle of the filter plate (30), and a filter screen (4) is in the center through slot and is fixed on the filter plate (30), covering the center through slot.

7. A broadband noise canceller according to claim 6, wherein: The top of the filter plate (30) is inserted into the upper part of the front and rear extension slot formed in the middle of the top plate of the cylindrical barrel (10), the top end of the filter plate (30) is fixed with the front and rear extension upper transverse fixed plate (31), the upper transverse fixed plate (31) is pressed against the top surface of the top plate of the cylindrical barrel (10) and covers the upper part of the slot, the top surface of the upper transverse fixed plate (31) is fixed with the front and rear extension grabbing plate (32), the middle of the grabbing plate (32) is formed with a central through hole.

8. A broadband noise canceller according to claim 7, wherein: The bottom surface of the top plate of the cylindrical barrel (10) at the left and right sides of the upper part of the slot is welded and fixed with the connecting block (40), the middle of the connecting block (40) is formed with a vertical screw connection through hole, the vertical screw connection through hole corresponds to the corresponding upper through hole formed on the top plate of the cylindrical barrel (10), the fixing block (50) is pressed against the top surface of the top plate of the cylindrical barrel (10), the middle of the fixing block (50) is formed with an upper vertical through hole, the screw rod of the fixing bolt (51) is inserted into the corresponding upper vertical through hole, upper through hole and screwed into the vertical screw connection through hole of the corresponding connecting block (40), the bottom surface of the rotating part of the fixing bolt (51) is pressed against the top surface of the fixing block (50), the bottom surface of the lateral part formed on the side wall of the fixing block (50) is pressed against the edge top surface of the upper transverse fixed plate (31), the bottom surface of the lateral part is formed with a convex positioning part, which is inserted into the corresponding upper groove formed on the edge top surface of the upper transverse fixed plate (31).

9. A broadband noise canceller according to claim 6, wherein: A plurality of wind blocking guide plates (6) are arranged in the left inner barrel (20) of the filter plate (30), the front and rear ends of the wind blocking guide plate (6) are welded and fixed on the inner side wall of the front and rear two side plates of the left inner barrel (20), a plurality of wind blocking guide plates (6) are vertically arranged, and adjacent two rows of wind blocking guide plates (6) are staggered.

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