CN113374740B - Pipeline fan with noise reduction function - Google Patents
Pipeline fan with noise reduction function Download PDFInfo
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- CN113374740B CN113374740B CN202110734506.5A CN202110734506A CN113374740B CN 113374740 B CN113374740 B CN 113374740B CN 202110734506 A CN202110734506 A CN 202110734506A CN 113374740 B CN113374740 B CN 113374740B
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- Prior art keywords
- channel
- fixing
- silencing
- wall
- fan
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
- F04D29/646—Mounting or removal of fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a pipeline fan with a noise reduction function, and belongs to the technical field of pipeline fans. A pipeline fan with a silencing effect comprises a silencing pipe, a fixing structure and a fan body; the fan body is connected to the fixed structure; the fixing structure comprises a silencing buffer piece and two fixing pieces; the fixing piece is arranged in the silencing pipe and used for limiting the fan body to move in the axial direction in the silencing pipe; the amortization bolster is located between two mountings and the hush pipe inner wall, and the amortization bolster is used for restricting the ascending removal of fan body in perpendicular to hush pipe axial direction, and the amortization bolster can weaken the noise at work of fan body, can weaken the produced mechanical noise in the fan working process greatly through the setting of amortization bolster, reduces the influence that produces external environment.
Description
Technical Field
The invention relates to the technical field of pipeline fans, in particular to a pipeline fan with a silencing effect.
Background
The fan is an important noise pollution source, the noise mainly comes from the vibration of mechanical operation, and the reduction of the fan noise has important significance for reducing environmental pollution.
At present, the existing mechanical noise processing method has low efficiency, and the noise index of some special occasions is difficult to meet the use requirement.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a pipeline fan with a silencing effect, which can greatly weaken mechanical noise generated in the working process of the fan and reduce the influence on the external environment through the arrangement of a silencing buffer piece.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A pipeline fan with a silencing effect comprises a silencing pipe, a fixing structure and a fan body;
the fan body is connected to the fixed structure;
the fixing structure comprises a silencing buffer piece and two fixing pieces;
the fixing piece is arranged in the silencing pipe and used for limiting the fan body to move in the axial direction in the silencing pipe;
the amortization bolster is located between two mountings and the hush pipe inner wall, and the amortization bolster is used for restricting the ascending removal of fan body in perpendicular to hush pipe axial direction, and the amortization bolster can weaken the operating noise of fan body.
Further, the fixing piece comprises a fixing ring and a limiting part; the fixing ring is fixedly arranged on the inner wall of the silencing pipe, and the inner diameter of the fixing ring is matched with the outer diameter of the fan body; the inner wall of the fixing ring is arranged on the limiting part, and the thickness of the limiting part is smaller than that of the fixing ring.
Furthermore, one limiting part comprises at least two semicircular plates, and the other limiting part is fixedly arranged on the inner wall of the fixing ring; the central part of the outer surface of the semi-annular plate is rotationally connected with the inner wall of the fixed ring; a connecting structure is arranged between the side ends of the two semi-annular plates which are close to each other.
Furthermore, the connecting structure comprises a locking piece and two connecting pieces; the two connecting pieces are respectively and fixedly arranged at the side ends of the two semi-annular plates close to each other; the retaining member is detachably connected between the two connecting members.
Furthermore, the connecting piece is a U-shaped strip; the locking piece is a clip.
Further, a plurality of evenly distributed's mounting groove has been seted up to the semicircular plate inner wall, and the mounting groove inner wall has set firmly the rubber arch.
Furthermore, the overlooking pattern of the rubber bulge is nipple-shaped, and the width of the rubber bulge is equal to the thickness of the fixing ring.
Furthermore, the silencing and buffering piece comprises an annular elastic pad, a liquid storage cavity and a liquid return channel; the annular elastic cushion is fixedly arranged between the two fixing rings, and the inner diameter of the annular elastic cushion is matched with the outer diameter of the fan body; the liquid storage cavity is formed by a space surrounded by a side wall of the two fixing rings, the outer surface of the annular elastic pad, which is close to the inner wall of the silencing pipe, and liquid is filled in the liquid storage cavity; the number of the liquid return channels is two, the two liquid return channels are symmetrically arranged on the inner wall of the silencing pipe, which is positioned in the liquid storage cavity, and the liquid return channels are communicated with the liquid storage cavity.
Further, the liquid return channel comprises a first channel, a second channel and a third channel which are fixedly connected from top to bottom in sequence; fillets are arranged at the joints of the first channel and the second channel and the joints of the second channel and the third channel; the first channel is obliquely and upwards arranged relative to the liquid storage cavity; the second channel is of an arc structure matched with the inner diameter of the silencing pipe; the horizontal position of the bottom end of the third channel is close to the horizontal position of the bottom end tangent line in the liquid storage cavity.
Furthermore, check valves are arranged in the first channel and the third channel, liquid in the liquid storage cavity can flow into the first channel in a one-way mode through the check valves in the first channel, and liquid flowing into the third channel can flow into the liquid storage cavity in a one-way mode through the check valves in the third channel.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
this scheme (one) can weaken the produced mechanical noise in the fan working process greatly through the setting of amortization bolster, reduces the influence to external environment production.
The silencing buffer piece can be matched with the fixing piece to be used for fixing the fan body on the one hand, and on the other hand, noise generated in the working process of the fan can be weakened.
The rubber bulge can reduce the work vibration in the working process of the fan to weaken noise, and a heat dissipation gap is formed in the back of the fan body fixed on the fixed structure, so that the heat dissipation performance of the fan body can be improved, and the service life of the fan body is prolonged.
And (IV) the arrangement of the connecting structure enables the limiting part to rotate by a certain angle relative to the fixing ring, so that the fan body is convenient to install.
Drawings
FIG. 1 is a schematic front perspective view of the present invention;
FIG. 2 is a perspective view of the fastening structure of the present invention;
FIG. 3 is a schematic view of the structure at A in FIG. 2;
FIG. 4 is a front cross-sectional view of the present invention;
FIG. 5 is a schematic perspective view of the semi-annular plate of the present invention rotated a certain angle around the retaining ring;
FIG. 6 is a schematic top view of the semi-annular plate and rubber boss of the present invention;
FIG. 7 is a schematic front view of a semi-annular plate and rubber bumps of the present invention;
FIG. 8 is a schematic perspective view of the semi-annular plate and mounting groove portion of the present invention;
fig. 9 is a side cross-sectional view of the present invention.
The reference numbers in the figures illustrate:
1, a silencing pipe;
2, a fixing part, 2-1 fixing rings, 2-2 limiting parts and 2-2-1 semicircular plates;
3, a fan body;
4-1 annular elastic cushion, 4-2 liquid storage cavity and 4-3 liquid return channel;
5, a connecting structure, 5-1 connecting pieces and 5-2 locking pieces;
6-1 rubber bulge and 6-2 mounting groove.
Detailed Description
Referring to fig. 1-9, a duct fan with noise reduction function includes a noise reduction pipe 1, a fixing structure and a fan body 3.
The fan body 3 is connected to the fixed structure; the fixing structure comprises a sound-deadening buffer and two fixing pieces 2.
The fixing piece 2 is arranged in the silencing pipe 1, and the fixing piece 2 is used for limiting the fan body 3 to move in the axial direction in the silencing pipe 1; the fixing part 2 comprises a fixing ring 2-1 and a limiting part 2-2; the fixing ring 2-1 is fixedly arranged on the inner wall of the silencing pipe 1, and the inner diameter of the fixing ring 2-1 is matched with the outer diameter of the fan body 3; the limiting part 2-2 is arranged on the inner wall of the fixing ring 2-1, and the thickness of the limiting part 2-2 is smaller than that of the fixing ring 2-1.
One limiting part 2-2 comprises at least two semicircular plates 2-2-1, and the other limiting part 2-2 is fixedly arranged on the inner wall of the fixing ring 2-1; the central part of the outer surface of the semi-annular plate 2-2-1 is rotationally connected with the inner wall of the fixed ring 2-1; a connecting structure 5 is arranged between the side ends, close to each other, of the two semi-annular plates 2-2-1, the connecting structure 5 is used for fixing the two semi-annular plates 2-2-1, when the fan body 3 needs to be mounted on the fixing structure, the connecting structure 5 is opened, the two semi-annular plates 2-2-1 are separated from a fixing state, the two semi-annular plates 2-2-1 are rotated by a certain angle to place the fan body 3 in a space defined by the fixing ring 2-1 and the annular elastic pad 4-1, the two semi-annular plates 2-2-1 are rotated back to the original position after being placed, the connecting structure 5 is reset, and fixing between the two semi-annular plates 2-2-1 is completed.
The connecting structure 5 comprises a locking piece 5-2 and two connecting pieces 5-1; the two connecting pieces 5-1 are respectively and fixedly arranged at the side ends of the two semi-annular plates 2-2-1 which are close to each other; the locking member 5-2 is detachably connected between the two connecting members 5-1.
The connecting piece 5-1 is a U-shaped strip; the locking piece 5-2 is a clip, the clip is sleeved between the two U-shaped strips, and the clip has certain hardness and diameter which are enough to lock the two U-shaped strips.
The inner wall of the semi-annular plate 2-2-1 is provided with a plurality of uniformly distributed mounting grooves 6-2, the inner wall of the mounting groove 6-2 is fixedly provided with a rubber bulge 6-1, the rubber bulge 6-1 has certain hardness, so that the rubber bulge 6-1 has enough supporting function for the fan body 3, the rubber material of the rubber bulge 6-1 ensures that when the fan body 3 generates larger vibration in the working process, the rubber bulge 6-1 can be driven to be compressed towards the direction close to the semi-annular plate 2-2-1, the rubber bulge 6-1 can play a certain buffering role for the fan body 3 in the working state, so that the noise generated in the working process of the fan body 3 is further weakened, and meanwhile, certain gaps are formed between the bottom end of the rubber bulge 6-1 and the annular elastic pad 4-1 and between every two adjacent rubber bulges 6-1, the clearance can be used for discharging heat generated in the working process of the fan body 3, and the heat dissipation effect is good.
The overlooking graph of the rubber bulge 6-1 is nipple-shaped, the width of the rubber bulge 6-1 is equal to the thickness of the fixing ring 2-1, namely, one end of the rubber bulge 6-1, which is far away from the semi-annular plate 2-2-1, is contacted with the side end of the fan body 3.
The amortization bolster is located between two mountings 2 and the 1 inner wall of hush pipe, and the amortization bolster is used for restricting the ascending removal of fan body 3 in the 1 axial direction of perpendicular to hush pipe, and the amortization bolster can weaken fan body 3's noise at work.
The silencing buffer piece comprises an annular elastic pad 4-1, a liquid storage cavity 4-2 and a liquid return channel 4-3; the annular elastic cushion 4-1 is fixedly arranged between the two fixed rings 2-1, and the inner diameter of the annular elastic cushion 4-1 is matched with the outer diameter of the fan body 3; the liquid storage cavity 4-2 is formed by a side wall of the two fixing rings 2-1 which are close to each other, the outer surface of the annular elastic cushion 4-1 which is close to the inner wall of the silencing tube 1 and a space surrounded by the inner wall of the silencing tube 1, and liquid is filled in the liquid storage cavity 4-2; the number of the liquid return channels 4-3 is two, the two liquid return channels 4-3 are symmetrically arranged on the inner wall of the silencing pipe 1 positioned in the liquid storage cavity 4-2, the liquid return channels 4-3 are communicated with the liquid storage cavity 4-2, when the fan body 3 vibrates in the working process, the fan body 3 extrudes the annular elastic pad 4-1 under the action of the self gravity of the fan body 3, then the liquid in the liquid storage cavity 4-2 is extruded, the liquid positioned at the bottom of the liquid storage cavity 4-2 flows upwards after being extruded, and flows to the position of the first channel, one part of the liquid continuously flows upwards, one part of the liquid flows into the first channel through the one-way valve, then flows out through the second channel and the third channel and flows back into the liquid storage cavity 4-2 through the one-way valve in the third channel, and the liquid flowing back to the bottom of the liquid storage cavity 4-2 can play a certain supporting role on the fan body 3, further, the vibration generated in the working process of the fan body 3 can be weakened, the buffering effect is achieved, and the working noise of the fan body 3 is weakened.
The liquid return channel 4-3 comprises a first channel, a second channel and a third channel which are fixedly connected from top to bottom in sequence; fillets are arranged at the joints of the first channel, the second channel and the third channel; the first channel is obliquely and upwards arranged relative to the liquid storage cavity 4-2; the second channel is of an arc structure matched with the inner diameter of the silencing pipe 1; the horizontal position of the bottom end of the third channel is close to the horizontal position of the bottom tangent line in the liquid storage cavity 4-2.
One-way valves are arranged in the first channel and the third channel, liquid in the liquid storage cavity 4-2 can flow into the first channel in a one-way mode through the one-way valves in the first channel, and liquid flowing into the third channel can flow into the liquid storage cavity 4-2 in a one-way mode through the one-way valves in the third channel.
Can weaken the produced mechanical noise in the fan working process greatly through the setting of amortization bolster, reduce the influence to external environment production.
Claims (7)
1. The utility model provides a pipeline fan with noise cancelling effect which characterized in that: comprises a silencing pipe (1), a fixed structure and a fan body (3);
the fan body (3) is connected to the fixed structure;
the fixing structure comprises a silencing buffer piece and two fixing pieces (2);
the fixing piece (2) is arranged in the silencing pipe (1), and the fixing piece (2) is used for limiting the fan body (3) to move in the silencing pipe (1) in the axial direction;
the silencing buffer parts are arranged between the two fixing parts (2) and the inner wall of the silencing pipe (1), are used for limiting the movement of the fan body (3) in the direction vertical to the axial direction of the silencing pipe (1), and can weaken the working noise of the fan body (3); the fixing piece (2) comprises a fixing ring (2-1) and a limiting part (2-2);
the fixing ring (2-1) is fixedly arranged on the inner wall of the silencing pipe (1), and the inner diameter of the fixing ring (2-1) is matched with the outer diameter of the fan body (3);
the limiting part (2-2) is arranged on the inner wall of the fixing ring (2-1), and the thickness of the limiting part (2-2) is smaller than that of the fixing ring (2-1); the silencing buffer piece comprises an annular elastic pad (4-1), a liquid storage cavity (4-2) and a liquid return channel (4-3);
the annular elastic pad (4-1) is fixedly arranged between the two fixing rings (2-1), and the inner diameter of the annular elastic pad (4-1) is matched with the outer diameter of the fan body (3);
the liquid storage cavity (4-2) is formed by a side wall of the two fixing rings (2-1) which are close to each other, the outer surface of the annular elastic pad (4-1) which is close to the inner wall of the silencing tube (1) and a space surrounded by the inner wall of the silencing tube (1), and liquid is filled in the liquid storage cavity (4-2);
the number of the liquid return channels (4-3) is two, the two liquid return channels (4-3) are symmetrically arranged on the inner wall of the silencing pipe (1) in the liquid storage cavity (4-2), and the liquid return channels (4-3) are communicated with the liquid storage cavity (4-2); the liquid return channel (4-3) comprises a first channel, a second channel and a third channel which are fixedly connected from top to bottom in sequence; fillets are arranged at the joints of the first channel and the second channel and the joints of the second channel and the third channel;
the first channel is obliquely and upwards arranged relative to the liquid storage cavity (4-2);
the second channel is of an arc structure matched with the inner diameter of the silencing pipe (1);
the horizontal position of the bottom end of the third channel is close to the horizontal position of the bottom tangent line in the liquid storage cavity (4-2).
2. The duct fan with noise reduction of claim 1, wherein: one limiting part (2-2) comprises at least two semicircular plates (2-2-1), and the other limiting part (2-2) is fixedly arranged on the inner wall of the fixing ring (2-1);
the central part of the outer surface of the semi-annular plate (2-2-1) is rotationally connected with the inner wall of the fixed ring (2-1);
a connecting structure (5) is arranged between the mutually close side ends of the two semi-annular plates (2-2-1).
3. The duct fan with noise reduction of claim 2, wherein: the connecting structure (5) comprises a locking piece (5-2) and two connecting pieces (5-1);
the two connecting pieces (5-1) are respectively and fixedly arranged at the side ends of the two semi-annular plates (2-2-1) which are close to each other;
the locking piece (5-2) is detachably connected between the two connecting pieces (5-1).
4. The duct fan with noise reduction of claim 3, wherein: the connecting piece (5-1) is a U-shaped strip; the locking piece (5-2) is a clip.
5. The duct fan with noise reduction of claim 2, wherein: the inner wall of the semicircular plate (2-2-1) is provided with a plurality of uniformly distributed mounting grooves (6-2), and the inner wall of each mounting groove (6-2) is fixedly provided with a rubber bulge (6-1).
6. The duct fan with noise reduction of claim 5, wherein: the overlooking graph of the rubber bulge (6-1) is nipple-shaped, and the width of the rubber bulge (6-1) is equal to the thickness of the fixing ring (2-1).
7. The duct fan with noise reduction of claim 1, wherein: one-way valves are arranged in the first channel and the third channel, liquid in the liquid storage cavity (4-2) can flow into the first channel in a one-way mode through the one-way valves in the first channel, and liquid flowing into the third channel can flow into the liquid storage cavity (4-2) in a one-way mode through the one-way valves in the third channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110734506.5A CN113374740B (en) | 2021-06-30 | 2021-06-30 | Pipeline fan with noise reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110734506.5A CN113374740B (en) | 2021-06-30 | 2021-06-30 | Pipeline fan with noise reduction function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113374740A CN113374740A (en) | 2021-09-10 |
| CN113374740B true CN113374740B (en) | 2022-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110734506.5A Active CN113374740B (en) | 2021-06-30 | 2021-06-30 | Pipeline fan with noise reduction function |
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| Country | Link |
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| CN (1) | CN113374740B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203962444U (en) * | 2014-05-28 | 2014-11-26 | 上虞市当代风机风冷设备有限公司 | The vibration isolation type blower fan that the even direction of air-out is adjustable |
| WO2018011917A1 (en) * | 2016-07-13 | 2018-01-18 | 三菱電機株式会社 | Electric blower and electrical apparatus |
| CN208431182U (en) * | 2018-05-21 | 2019-01-25 | 中铁十局集团青岛工程有限公司 | Tunnel fan |
| CN209354436U (en) * | 2018-12-11 | 2019-09-06 | 上海应达风机股份有限公司 | A kind of pipeline denoising draught fan |
| CN211116826U (en) * | 2019-09-24 | 2020-07-28 | 天津固德风通风设备有限公司 | Fan with vibration/noise reduction function |
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2021
- 2021-06-30 CN CN202110734506.5A patent/CN113374740B/en active Active
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| CN113374740A (en) | 2021-09-10 |
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