CN113027825A - Fire control smoke exhaust fan export noise eliminator - Google Patents
Fire control smoke exhaust fan export noise eliminator Download PDFInfo
- Publication number
- CN113027825A CN113027825A CN202110420669.6A CN202110420669A CN113027825A CN 113027825 A CN113027825 A CN 113027825A CN 202110420669 A CN202110420669 A CN 202110420669A CN 113027825 A CN113027825 A CN 113027825A
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- China
- Prior art keywords
- smoke exhaust
- arc
- exhaust fan
- fire
- plate
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Classifications
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/601—Mounting; Assembling; Disassembling 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
- F04D29/66—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
- F04D29/664—Sound attenuation by means of sound absorbing material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a fire-fighting smoke exhaust fan outlet silencer which comprises a smoke exhaust pipeline connected to the outlet of a fire-fighting smoke exhaust fan and a silencing tube sleeved outside the smoke exhaust pipeline, wherein the silencing tube is formed by splicing two arc plates with semicircular sections, connecting rods are arranged on two side edges of the two arc plates, the connecting rods and the arc plates are integrally formed, bolt holes are formed in the connecting rods, bolts penetrate through the two communicated bolt holes after the two connecting rods are lapped, one end of each bolt is in threaded connection with a nut, and arc clamping plates perpendicular to the arc plates are welded at two ends of the inner side of each arc plate. According to the invention, the noise generated by the work of the smoke exhaust fan is subjected to primary noise reduction by using the sound absorption cotton on the noise elimination module, and secondary noise reduction is performed by using the noise elimination box body, so that the primary sound absorption plate, the secondary sound absorption plate and the sound absorption foam in the noise elimination box body can play a role of triple sound absorption, the noise pollution generated by the work of the smoke exhaust fan is effectively reduced, and the practicability is better.
Description
Technical Field
The invention relates to the technical field of fire-fighting equipment, in particular to a fire-fighting smoke exhaust fan outlet silencing device.
Background
The fire-fighting smoke exhaust fan is a fire-fighting device, and can be used for exhausting dense smoke in a fire disaster, reducing the concentration of toxic smoke in a fire scene and protecting the life and property safety of people.
The fire-fighting smoke exhaust fan in the market at present has the problems of overlarge noise, noise pollution and reduction of the service life of the fire-fighting smoke exhaust fan, although a silencing device is installed on some fire-fighting smoke exhaust fans, the silencing effect is not good, and the installation process of the silencing device is complex, so that the fire-fighting smoke exhaust fan outlet silencing device needs to be invented to perform noise reduction treatment on the fire-fighting smoke exhaust fan, and further make up for the defects of the existing equipment.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an outlet silencing device of a fire-fighting smoke exhaust fan.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fire-fighting smoke exhaust fan outlet silencer comprises a smoke exhaust pipeline connected to the outlet of a fire-fighting smoke exhaust fan and a silencing tube sleeved outside the smoke exhaust pipeline, wherein the silencing tube is formed by splicing two arc plates with semicircular sections, connecting rods are arranged on two side edges of the two arc plates, the connecting rods and the arc plates are integrally formed, bolt holes are formed in the connecting rods, bolts penetrate through the two communicated bolt holes after the two connecting rods are lapped, one end of each bolt is in threaded connection with a nut, arc clamping plates perpendicular to the arc plates are welded at two ends of the inner sides of the two arc plates, one side of each arc clamping plate abuts against the outer wall of the smoke exhaust pipeline, a plurality of silencing modules are arranged on the inner sides of the two arc plates at equal intervals, through holes are formed in the part of the smoke exhaust pipeline between the silencing tubes, and silencing boxes are arranged on the outer sides of the two arc plates, the outer wall of the smoke exhaust pipeline is provided with locking devices at two ends of the silencing cylinder;
the amortization module is including welding a plurality of fixed plates in the arc inboard, the surface cladding of fixed plate has the sound of inhaling cotton through the mode cladding that bonds.
Preferably, locking device is including the mounting panel in the arc outside of welding, the threaded rod is installed through threaded connection's mode on the mounting panel, the one end of threaded rod offsets with one side of arc splint, the handle is installed to the other end of threaded rod.
Preferably, two locking devices at two ends of the silencing tube are arranged at equal distance.
Preferably, a first-stage sound-absorbing plate is arranged inside the sound-absorbing box body, a second-stage sound-absorbing plate is arranged on one side of the first-stage sound-absorbing plate, and a gap is reserved between the first-stage sound-absorbing plate and the second-stage sound-absorbing plate.
Preferably, the gap between the primary sound-absorbing plate and the secondary sound-absorbing plate is filled with sound-absorbing foam, and the rest of the space inside the sound-absorbing box body is also filled with sound-absorbing foam.
Preferably, the sound muffling box body is connected with the arc-shaped plate in a sealing mode in a welding mode, and the sound muffling box body is arranged to be in a radian matched with the arc-shaped plate.
Preferably, a rubber pad is bonded on the contact surface of the arc-shaped clamping plate and the smoke exhaust pipeline.
Preferably, the number of the silencing modules is 20-30, the 20-30 silencing modules are distributed on the inner sides of the two arc-shaped plates at equal intervals, and a gap is reserved between each silencing module and each silencing module.
The invention has the beneficial effects that:
1. noise that the cotton noise of inhaling that utilizes on the noise elimination module produced the work of smoke exhaust fan falls for the first time, utilizes the noise elimination box to fall and makes an uproar for the second time, and noise elimination box inside one-level abatvoix, second grade abatvoix and inhale the sound foam and can play the effect of triple sound of inhaling, the effectual noise pollution that produces that reduces the work of smoke exhaust fan, the practicality is better.
2. Through merging two arcs and cup jointing in exhaust pipe's outside, pass the bolt from the bolt hole of two connecting rods of mutual overlap joint, with the other end spiro union of nut and bolt, realized merging into the hush pipe with two arcs, then rotate the handle, drive the threaded rod and rotate the avris that offsets with the arc splint to further guaranteed hush pipe and exhaust pipe's fixed connection, avoided hush pipe and exhaust pipe to break away from, the installation is comparatively simple, convenient and fast, and time saving and labor saving.
Drawings
FIG. 1 is a schematic structural view of a front cross section of a fire-fighting smoke exhaust fan outlet muffler device according to the present invention;
fig. 2 is an enlarged structural schematic diagram of a point a in fig. 1 of the fire-fighting smoke exhaust fan outlet muffler device provided by the invention;
FIG. 3 is a left side view schematic structural view of a fire-fighting smoke exhaust fan outlet muffler device according to the present invention;
FIG. 4 is a left side view structural diagram of an arc-shaped clamping plate of the fire-fighting smoke exhaust fan outlet muffler device provided by the invention;
FIG. 5 is a schematic perspective view of a fire-fighting smoke exhaust fan outlet muffler device according to the present invention;
FIG. 6 is a schematic perspective partial structure view of a fire-fighting smoke exhaust fan outlet muffler device according to the present invention;
fig. 7 is a schematic left-side sectional view of a sound-deadening box body of the fire-fighting smoke exhaust fan outlet muffler device provided by the invention.
In the figure: the smoke exhaust pipe comprises a smoke exhaust pipeline 1, a through hole 101, a sound attenuation cylinder 2, an arc-shaped plate 201, a locking device 3, a threaded rod 301, a handle 302, a mounting plate 303, a silencing module 4, a fixing plate 401, sound absorption cotton 402, a silencing box 5, a primary sound absorption plate 501, a secondary sound absorption plate 502, sound absorption foam 503, an arc-shaped clamping plate 6, a rubber pad 601, a connecting rod 7, a bolt hole 701, a bolt 8, a bolt 9 and a nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
the silencing module 4 comprises a plurality of fixing plates 401 welded on the inner side of the arc-shaped plate 201, and sound-absorbing cotton 402 is coated on the surfaces of the fixing plates 401 in a bonding mode;
the locking device 3 comprises a mounting plate 303 welded on the outer side of the arc-shaped plate 201, a threaded rod 301 is mounted on the mounting plate 303 in a threaded connection mode, one end of the threaded rod 301 is abutted against one side of the arc-shaped clamping plate 6, a handle 302 is mounted at the other end of the threaded rod 301, two locking devices 3 at two ends of the silencing tube 2 are mounted at equal distance, the threaded rod 301 is driven to rotate by rotating the handles 302 of the tightening devices 3 at two ends of the silencing tube 2, one end of the threaded rod 301 is abutted against the arc-shaped clamping plate 6, and therefore the smoke exhaust pipeline 1 and the arc-shaped plate 201 cannot shake relatively, and stability is improved;
a first-stage sound-absorbing board 501 is arranged in the sound-absorbing box body 5, a second-stage sound-absorbing board 502 is arranged on one side of the first-stage sound-absorbing board 501, a gap is reserved between the first-stage sound-absorbing board 501 and the second-stage sound-absorbing board 502, and the first-stage sound-absorbing board 501 and the second-stage sound-absorbing board 502 can absorb noise emitted by a smoke exhaust fan;
the gap between the primary sound-absorbing board 501 and the secondary sound-absorbing board 502 is filled with sound-absorbing foam 503, and the rest of the space inside the sound-absorbing box body 5 is also filled with sound-absorbing foam 503, so that the sound-absorbing foam 503 can be used for further absorbing the noise emitted by the smoke exhaust fan;
the sound attenuation box body 5 is hermetically connected with the arc-shaped plate 201 in a welding mode, and the sound attenuation box body 5 is arranged to have a radian matched with the arc-shaped plate 201, so that a primary sound absorption plate 501, a secondary sound absorption plate 502 and sound absorption foam 503 in the sound attenuation box body 5 are ensured to effectively absorb noise;
a rubber pad 601 is bonded on the contact surface of the arc-shaped clamping plate 6 and the smoke exhaust pipeline 1, so that the arc-shaped clamping plate 6 and the smoke exhaust pipeline 1 are bonded more tightly, and the noise absorption effect is improved;
the number of the silencing modules 4 is 20-30, the 20-30 silencing modules 4 are distributed on the inner sides of the two arc-shaped plates 201 at equal intervals, and a gap is reserved between each silencing module 4 and each silencing module 4, so that the sound absorbing cotton 402 of the silencing modules 4 can effectively absorb noise, and the noise reduction effect is guaranteed.
After the smoke exhaust pipeline 1 is communicated with the outlet of a fire-fighting smoke exhaust fan, two arc-shaped plates 201 are combined and sleeved outside the smoke exhaust pipeline 1, a bolt 8 penetrates through bolt holes 701 of two connecting rods 7 which are mutually overlapped, one end of the bolt 8 is connected with a nut 9, the two arc-shaped plates 201 are combined into a silencing cylinder 2, the smoke exhaust pipeline 1 is clamped by arc-shaped clamping plates 6 at two ends of the inner sides of the two arc-shaped plates 201, the silencing cylinder 2 is connected with the smoke exhaust pipeline 1, then a handle 302 is rotated to drive a threaded rod 301 to rotate, one end of the threaded rod 301 is abutted against the side of the arc-shaped clamping plate 6, the fixed connection between the silencing cylinder 2 and the smoke exhaust pipeline 1 is further ensured, the installation of a silencing device is completed, the operation is convenient and rapid, when the smoke exhaust pipeline 1 discharges smoke, sound absorption cotton 402 on a silencing module 4 is used for the first time of noise reduction, the noise reduction box body 5 is utilized to reduce noise for the second time, the primary sound-absorbing board 501, the secondary sound-absorbing board 502 and the sound-absorbing foam 503 in the noise reduction box body 5 can achieve the effect of triple sound absorption, and noise pollution generated by the work of the smoke exhaust fan is effectively reduced.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The fire-fighting smoke exhaust fan outlet silencing device comprises a smoke exhaust pipeline (1) connected to the outlet of the fire-fighting smoke exhaust fan and a silencing tube (2) sleeved outside the smoke exhaust pipeline (1), and is characterized in that the silencing tube (2) is formed by splicing two arc plates (201) with semicircular sections, two sides of the two arc plates (201) are respectively provided with a connecting rod (7), the connecting rods (7) and the arc plates (201) are integrally formed, bolt holes (701) are formed in the connecting rods (7), two bolt holes (701) communicated with each other penetrate through the two connecting rods (7) after the two connecting rods (7) are lapped, one end of each bolt (8) is in threaded connection with a nut (9), arc clamping plates (6) which are perpendicular to the arc plates (201) are welded at two ends of the inner side of the two arc clamping plates (201), one side of each arc clamping plate (6) is abutted to the outer wall of the smoke exhaust pipeline (1), a plurality of silencing modules (4) are arranged on the inner sides of the two arc-shaped plates (201) at equal intervals, through holes (101) are formed in the part, located between the silencing cylinders (2), of the smoke exhaust pipeline (1), silencing box bodies (5) are arranged on the outer sides of the two arc-shaped plates (201), and locking devices (3) are arranged at the two ends, located on the silencing cylinders (2), of the outer wall of the smoke exhaust pipeline (1);
amortization module (4) have sound absorption cotton (402) including welding at a plurality of fixed plates (401) of arc (201) inboard, the surface cladding of fixed plate (401) has through the mode of bonding.
2. A fire protection and smoke exhaust fan outlet muffler device according to claim 1, wherein the locking device (3) comprises a mounting plate (303) welded to the outer side of the arc plate (201), a threaded rod (301) is mounted on the mounting plate (303) in a threaded connection mode, one end of the threaded rod (301) abuts against one side of the arc clamping plate (6), and a handle (302) is mounted at the other end of the threaded rod (301).
3. A fire fighting smoke exhaust fan outlet muffler device according to claim 1, characterized in that two locking devices (3) at both ends of the muffler barrel (2) are installed at equal distance.
4. A fire-fighting smoke exhaust fan outlet muffler device as defined by claim 1, wherein a primary sound-absorbing plate (501) is mounted inside the muffler box body (5), a secondary sound-absorbing plate (502) is mounted on one side of the primary sound-absorbing plate (501), and a gap is reserved between the primary sound-absorbing plate (501) and the secondary sound-absorbing plate (502).
5. A fire fighting smoke exhaust fan outlet muffler device according to claim 4, characterized in that the gap between the primary sound absorbing plate (501) and the secondary sound absorbing plate (502) is filled with sound absorbing foam (503), and the rest of the space inside the sound absorbing box body (5) is also filled with sound absorbing foam (503).
6. The fire-fighting smoke exhaust fan outlet muffler device as defined in claim 1, wherein the muffler box body (5) is hermetically connected with the arc-shaped plate (201) by welding, and the muffler box body (5) is arranged in a radian matched with the arc-shaped plate (201).
7. The fire-fighting smoke exhaust fan outlet muffler device as defined in claim 1, wherein a rubber pad (601) is bonded to the contact surface of the arc-shaped clamping plate (6) and the smoke exhaust pipe (1).
8. The fire-fighting smoke exhaust fan outlet muffler device as defined in claim 1, wherein 20-30 muffler modules (4) are provided, and the 20-30 muffler modules (4) are equidistantly distributed on the inner sides of the two arc-shaped plates (201), and a gap is reserved between the muffler modules (4) and the muffler modules (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110420669.6A CN113027825B (en) | 2021-04-19 | 2021-04-19 | Fire control smoke exhaust fan export noise eliminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110420669.6A CN113027825B (en) | 2021-04-19 | 2021-04-19 | Fire control smoke exhaust fan export noise eliminator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113027825A true CN113027825A (en) | 2021-06-25 |
| CN113027825B CN113027825B (en) | 2022-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110420669.6A Active CN113027825B (en) | 2021-04-19 | 2021-04-19 | Fire control smoke exhaust fan export noise eliminator |
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| Country | Link |
|---|---|
| CN (1) | CN113027825B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013718A (en) * | 2022-07-04 | 2022-09-06 | 蚌埠艾普压缩机制造有限公司 | Hydrogenation device for hydrogenation station |
| CN115370447A (en) * | 2022-08-17 | 2022-11-22 | 重庆市璧山区宗辉机械有限公司 | Motorcycle silencer and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343746A (en) * | 2013-07-24 | 2015-02-11 | 苏州宝时得电动工具有限公司 | Blowing-suction machine |
| CN210318870U (en) * | 2019-07-31 | 2020-04-14 | 南京博瑞斯通保温材料有限公司 | Silencing type color steel glass fiber lining air pipe |
| CN210978005U (en) * | 2019-11-08 | 2020-07-10 | 青岛双晟风机设备有限公司 | Silencer for centrifugal ventilator |
| CN212080500U (en) * | 2020-04-08 | 2020-12-04 | 玉锋实业集团有限公司 | Silencer for water supply pipeline of thermal power plant |
| CN212985634U (en) * | 2020-08-26 | 2021-04-16 | 风力嘉风机(上海)有限公司 | Silencer of centrifugal fan |
-
2021
- 2021-04-19 CN CN202110420669.6A patent/CN113027825B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343746A (en) * | 2013-07-24 | 2015-02-11 | 苏州宝时得电动工具有限公司 | Blowing-suction machine |
| CN210318870U (en) * | 2019-07-31 | 2020-04-14 | 南京博瑞斯通保温材料有限公司 | Silencing type color steel glass fiber lining air pipe |
| CN210978005U (en) * | 2019-11-08 | 2020-07-10 | 青岛双晟风机设备有限公司 | Silencer for centrifugal ventilator |
| CN212080500U (en) * | 2020-04-08 | 2020-12-04 | 玉锋实业集团有限公司 | Silencer for water supply pipeline of thermal power plant |
| CN212985634U (en) * | 2020-08-26 | 2021-04-16 | 风力嘉风机(上海)有限公司 | Silencer of centrifugal fan |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013718A (en) * | 2022-07-04 | 2022-09-06 | 蚌埠艾普压缩机制造有限公司 | Hydrogenation device for hydrogenation station |
| CN115370447A (en) * | 2022-08-17 | 2022-11-22 | 重庆市璧山区宗辉机械有限公司 | Motorcycle silencer and manufacturing method thereof |
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| Publication number | Publication date |
|---|---|
| CN113027825B (en) | 2022-12-06 |
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