CN111780398A - Volute-simulated type noise elimination and ventilation device and using method thereof - Google Patents
Volute-simulated type noise elimination and ventilation device and using method thereof Download PDFInfo
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- CN111780398A CN111780398A CN202010533361.8A CN202010533361A CN111780398A CN 111780398 A CN111780398 A CN 111780398A CN 202010533361 A CN202010533361 A CN 202010533361A CN 111780398 A CN111780398 A CN 111780398A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000009423 ventilation Methods 0.000 title claims description 62
- 230000008030 elimination Effects 0.000 title claims description 9
- 238000003379 elimination reaction Methods 0.000 title claims description 9
- 230000030279 gene silencing Effects 0.000 claims abstract description 85
- 230000003584 silencer Effects 0.000 claims abstract description 25
- 230000009471 action Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 238000013016 damping Methods 0.000 claims 4
- 230000003139 buffering effect Effects 0.000 description 26
- 238000010521 absorption reaction Methods 0.000 description 5
- 241000251468 Actinopterygii Species 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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- Exhaust Silencers (AREA)
Abstract
The invention discloses a volute-imitating silencing and ventilating device and a use method thereof, belonging to the field of silencers, the volute-imitating silencing and ventilating device comprises a main ventilating pipe, wherein a plurality of uniformly distributed air inlets are fixedly connected on the main ventilating pipe, a scroll silencer is arranged in the air inlets and comprises an air inlet pipe, the lower end of the air inlet pipe is fixedly connected with a scroll silencing pipe, a mesh silencing pipe is connected between the scroll silencing pipe and the air inlet pipe, a plurality of uniformly distributed air vents are formed on the mesh silencing pipe, a plurality of buffer blades distributed in a staggered manner are connected in the scroll silencing pipe, a pair of exhaust pipes are fixedly connected on the outer wall of the scroll silencing pipe, the purpose that the scroll silencer can prolong the air flow stroke through the scroll silencing pipe, absorb the kinetic energy of the air flow and reflect the air flow under the action of the plurality of buffer blades in the scroll silencing pipe is achieved, effectively reduce the airflow and reduce the noise generated when the inner wall of the scroll type silencing pipe collides.
Description
Technical Field
The invention relates to the field of silencers, in particular to a volute-imitating silencing and ventilating device and a using method thereof.
Background
At present, a final air outlet pipeline is usually arranged at the top of a house of a large central air conditioner, and a ventilation louver is usually arranged at a pipeline opening of the air outlet pipeline for avoiding excessive rainwater and dust from entering. Traditional ventilation tripe structure is single, and is less along with the noise influence to house inside, nevertheless will bring great noise pollution to nearby being higher than the house of ventilation tripe position for the resident personnel on every side are bitter.
At present, in the field of ventilation, noise elimination and noise reduction, the installation of a silencer is the most common and effective treatment measure. The silencer is used for the airflow pipeline with noise transmission, and can attenuate or reflect the noise in the pipeline by using noise reduction devices such as pipelines and elbows with sound absorption linings or pipelines with suddenly changed sectional areas and other discontinuous acoustic impedances. The former is called resistive muffler, the latter is called reactive muffler, and there is also impedance composite muffler, generally speaking, a muffler is a device that can allow air flow to pass smoothly and can effectively attenuate sound energy. The ventilation muffler can be broadly classified into a resistive muffler, a reactive muffler, an impedance composite muffler, and a ventilation pressure relief muffler according to the difference in the noise reduction principle and structure. The resistive muffler is a muffler most applied in a ventilation and noise elimination system, and achieves the purpose of noise elimination by utilizing the mechanism that sound energy is converted into heat energy due to friction and dissipated when sound waves are transmitted in a sound absorption material or structure.
The installation of resistive mufflers is very common in practical engineering application, and common sheet mufflers, matrix mufflers, folded plate mufflers and various derivative products achieve the aim of muffling by utilizing the sound absorption performance of fiber porous sound absorption materials according to the muffling principle.
The existing silencer has the advantages of single silencing principle, poor silencing effect, large size, large occupied space and the like, and is mostly installed at the joint of pipelines.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a volute-simulated silencing and ventilating device which can realize that a silencing device is arranged in a main ventilating pipe and is positioned at the joint of a branch ventilating pipe and a main ventilating pipe, has small occupied space and high space utilization rate, when airflow enters a scroll silencer through an air inlet, the airflow is scattered by a mesh silencing pipe to decelerate the airflow, then the airflow enters the scroll silencing pipe, the airflow stroke is prolonged through the scroll silencing pipe, the kinetic energy of the airflow is absorbed and the airflow is reflected through the action of a plurality of buffering blades in the flowing process of the airflow in the scroll silencing pipe, meanwhile, the noise generated when the decelerated airflow collides with the inner wall of the scroll silencing pipe is reduced through the buffering action of the buffering blades, and finally, the decelerated airflow enters the main ventilating pipe through an exhaust pipe connected to the scroll silencer and passes through a plurality of through holes on the exhaust pipe, the airflow discharged from the exhaust pipe is further dispersed, and the noise generated by collision of the high-speed airflow and the airflow in the main ventilation pipe is effectively reduced.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A volute-imitating silencing and ventilating device comprises a volute-imitating silencing and ventilating device, wherein the volute-imitating silencing and ventilating device comprises a main ventilating pipe, a plurality of uniformly distributed air inlets are fixedly connected to the main ventilating pipe, branch main ventilating pipes are mounted on the air inlets, the air inlets are connected with the branch main ventilating pipes through flanges, vortex pipe silencers are mounted in the air inlets, each vortex pipe silencer comprises an air inlet pipe, the lower end of each air inlet pipe is fixedly connected with a volute silencing pipe, a mesh silencing pipe is connected between each volute silencing pipe and the corresponding air inlet pipe, a plurality of uniformly distributed air holes are formed in each mesh silencing pipe, a plurality of buffer blades are connected into each volute silencing pipe in a staggered mode, a pair of exhaust pipes are fixedly connected to the outer walls of the volute silencing pipes, and a plurality of air holes are drilled in the exhaust pipes, the exhaust pipe is communicated with the inner cavity of the worm-shaped silencing pipe, a plurality of through holes are drilled in the exhaust pipe, a flow distribution plate is arranged between every two adjacent worm-shaped silencing pipes, the inner wall of each flow distribution plate is fixedly connected with one end, far away from the worm-shaped silencing pipe, of the exhaust pipe, so that the worm-shaped silencing pipes can extend the air flow stroke, the kinetic energy of the air flow is absorbed through the action of a plurality of buffer blades in the worm-shaped silencing pipes, the air flow is reflected, the air flow is effectively decelerated, and the noise generated when the inner walls of the worm-shaped silencing pipes collide is reduced.
Furthermore, the buffering blades are in a rhombus scaly shape, the buffering blades are formed by punching elastic steel, the buffering blades are distributed on the inner wall of the volute type silencing pipe in a scaly shape, and the lower ends of the buffering blades are fixedly connected with sound-absorbing sponge and the buffering blades.
Furthermore, the outer wall of the main ventilation pipe is paved with a sound insulation layer, so that noise generated by the main ventilation pipe can be reduced through the sound insulation layer.
Further, the flow distribution plate is V style of calligraphy corrosion resistant plate, the contained angle of flow distribution plate is 60, the one end of blast pipe and the inner wall fixed connection of blast pipe divide the air current through the flow distribution plate, separate the air current of blast pipe and trunk ventilation pipe through the flow distribution plate, prevent that the blast pipe combustion gas stream from contacting with the air current in the trunk ventilation pipe, avoid the air current to cross produced noise.
Furthermore, the vent holes on the exhaust pipe are distributed at one end far away from the flow distribution plate, so that airflow discharged from the exhaust pipe is discharged along the flow guide direction of the main ventilation pipe, and convection is prevented.
Furthermore, a plurality of guide plates which are uniformly distributed are paved on the inner wall of the main ventilation pipe, the inclination angle of each guide plate is 30-45 degrees, the distance between every two adjacent guide plates is 3-5cm, and gas backflow is reduced through the guide plates.
Furthermore, the upper end of the mesh muffling pipe is fixedly connected with a sealing ring of the air inlet pipe, the sealing ring is fixedly connected with a flow guide ring matched with the mesh muffling pipe, and airflow is guided to the mesh muffling pipe through the flow guide ring, so that backflow of the airflow is reduced.
A volute-imitating type silencing and ventilating device comprises the following use methods:
s1, connecting other air pipes with an air inlet on the main ventilation pipe by a technician to enable air flow to be converged into the main ventilation pipe through the air inlet;
s2, when the airflow enters the main ventilation pipe, the airflow is firstly dispersed under the action of the mesh silencing pipe, so that the airflow is decelerated and dispersed into a plurality of branches;
s3, after the scattered airflow enters the scroll-type silencing pipe, the scattered airflow is repeatedly refracted and buffered by a plurality of buffer blades in the scroll-type silencing pipe to absorb kinetic energy of the airflow and decelerate the airflow;
and S4, discharging the airflow processed by the worm type silencing pipe through the exhaust pipe, and enabling the airflow to be intersected with the main airflow in the main ventilation pipe to flow along the exhaust direction of the main ventilation pipe.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the silencer is arranged in the main ventilation pipe and is positioned at the joint of the branch ventilation pipe and the main air pipe, the occupied space is small, the space utilization rate is high, when air flow enters the scroll silencer through the air inlet, the air flow is firstly scattered by the mesh silencing pipe to decelerate the air flow, then enters the scroll-type silencing pipe, the airflow stroke is prolonged through the scroll-type silencing pipe, the kinetic energy of the airflow is absorbed and the airflow is reflected through the action of a plurality of buffer blades in the flowing process of the airflow in the scroll-type silencing pipe, meanwhile, the noise generated when the decelerated airflow collides with the inner wall of the scroll muffler pipe is reduced by the buffer action of the buffer blades, and finally the decelerated airflow enters the main ventilation pipe through the exhaust pipe connected with the scroll muffler pipe, through a plurality of through-holes on the blast pipe, make from the blast pipe exhaust flow further broken up, effectively reduce the high-speed air current and collide the produced noise with the air current in the trunk ventilation pipe.
(2) The buffering blade in the invention is in a diamond scale shape, and is formed by punching elastic steel, and a plurality of buffer blades are distributed on the inner wall of the worm-shaped silencing pipe in a fish scale shape, the buffer blades are distributed on the inner wall of the worm-shaped silencing pipe in a fish scale shape, so that the inner wall of the worm-shaped silencing pipe is covered by the buffer blades, the distance between two adjacent buffer blades is smaller, the buffer blade in the middle of the two buffer blade pairs is limited by the two connected buffer blades to prevent the buffer blade from loosening due to larger vibration amplitude, the lower end of the buffer blade is fixedly connected with a sound-absorbing sponge, the fish scale-shaped buffering blades distributed all over the scroll-type silencing pipe can buffer, so that the airflow is continuously buffered and shunted by the plurality of buffering blades when flowing in the scroll-type silencing pipe, the airflow is continuously weakened, meanwhile, the sound absorption sponge effect between the two buffer blades reduces the noise generated when the two buffer blades 4 collide.
(3) The flow distribution plate is a V-shaped stainless steel plate, the included angle of the flow distribution plate is 60 degrees, one end of the exhaust pipe is fixedly connected with the inner wall of the exhaust pipe, the air flow is distributed by the flow distribution plate, the exhaust pipe is separated from the air flow of the main ventilation pipe by the flow distribution plate, the air flow discharged by the exhaust pipe is prevented from contacting with the air flow in the main ventilation pipe, and the noise generated by the intersection of the air flow is avoided
(4) A plurality of guide plates which are uniformly distributed are paved on the inner wall of the main ventilation pipe, the inclination angle of each guide plate is 30-45 degrees, the distance between every two adjacent guide plates is 3-5cm, and the gas backflow is reduced by the guide plates
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic view of the structure at B in FIG. 2;
fig. 5 is a top sectional view of the present invention.
1 main ventilation pipe, 2 air inlets, 3 scroll pipe silencers, 301 air inlet pipe, 302 scroll silencer, 303 mesh silencer, 4 buffer blades, 5 exhaust pipes and 6 flow distribution plates
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1: referring to fig. 1-4, a volute-like silencing and ventilating device and a use method thereof comprise the volute-like silencing and ventilating device, the volute-like silencing and ventilating device comprises a trunk ventilation pipe 1, a sound insulation layer is paved on the outer wall of the trunk ventilation pipe 1, noise generated by the trunk ventilation pipe 1 can be reduced through the sound insulation layer, a plurality of uniformly distributed guide plates are paved on the inner wall of the trunk ventilation pipe 1, the inclination angle of each guide plate is 30-45 degrees, the distance between every two adjacent guide plates is 3-5cm, gas backflow is reduced through the guide plates, a plurality of uniformly distributed air inlets 2 are fixedly connected to the trunk ventilation pipe 1, branch trunk ventilation pipes are installed on the air inlets 2, and the air inlets 2 are connected with branch ventilation pipes through flanges.
Referring to fig. 2-4, a scroll silencer 3 is installed in the air inlet 2, the scroll silencer 3 includes an air inlet pipe 301, a scroll silencer 302 is fixedly connected to a lower end of the air inlet pipe 301, a mesh silencer 303 is connected between the scroll silencer 302 and the air inlet pipe 301, a sealing ring connected to the air inlet pipe 301 is fixedly connected to an upper end of the mesh silencer 303, a deflector ring matched to the mesh silencer 303 is fixedly connected to the sealing ring, airflow is guided to the mesh silencer 303 by the deflector ring to reduce backflow of the airflow, and a plurality of uniformly distributed air holes are formed in the mesh silencer 303;
referring to fig. 3, a plurality of buffer blades 4 are connected in a staggered manner in a scroll muffler 302, a pair of exhaust pipes 5 are fixedly connected to the outer wall of the scroll muffler 302, a plurality of vent holes are drilled in the exhaust pipes 5, the vent holes in the exhaust pipes 5 are distributed at one end far away from a splitter plate 6, so that the airflow discharged from the exhaust pipes 5 is discharged along the flow guiding direction of a main ventilation pipe 1, convection is prevented, the exhaust pipes 5 are communicated with the inner cavity of the scroll muffler 302, a plurality of through holes are drilled in the exhaust pipes 5, and the splitter plate 6 is arranged between two adjacent scroll mufflers 3;
referring to fig. 5, the splitter plate 6 is a V-shaped stainless steel plate, the included angle of the splitter plate 6 is 60 °, one end of the exhaust pipe 5 is fixedly connected to the inner wall of the exhaust pipe 5, the splitter plate 6 splits the airflow, the splitter plate 6 separates the exhaust pipe 5 from the airflow of the main ventilation pipe 1, the airflow discharged from the exhaust pipe 5 is prevented from contacting the airflow in the main ventilation pipe 1, noise generated by intersection of the airflow is avoided, and the inner wall of the splitter plate 6 is fixedly connected to one end of the exhaust pipe 5 far away from the scroll-type muffling pipe 302.
The buffering blades 4 are in a diamond scale shape, the buffering blades 4 are formed by punching elastic steel, a plurality of buffering blades 4 are distributed on the inner wall of the worm-shaped silencing pipe 302 in a scale shape, the inner wall of the worm-shaped silencing pipe 302 is coated by the buffering blades 4, the distance between every two adjacent buffering blades 4 is small, the two buffering blades 4 are communicated and connected to limit the middle buffering blade 4, the buffering blades 4 are prevented from vibrating in large amplitude and loosening, the lower end of each buffering blade 4 is fixedly connected with a sound-absorbing sponge, the buffering can be realized by the fish-scale buffering blades 4 distributed in the worm-shaped silencing pipe 302, the air flow is constantly buffered and shunted by the buffering blades 4 when flowing in the worm-shaped silencing pipe 302, the air flow is constantly attenuated, and the sound is absorbed by the sponge between the two buffering blades 4, the noise generated when the two buffer blades 4 collide is reduced.
A volute-imitating type silencing and ventilating device comprises the following use methods:
s1, connecting other air pipes with an air inlet 2 on the main ventilation pipe 1 by a technician to enable air flow to be converged into the main ventilation pipe 1 through the air inlet 2;
s2, when the airflow enters the main ventilation pipe 1, the airflow is firstly dispersed under the action of the mesh silencing pipe 303, and the airflow is decelerated and dispersed into a plurality of branches;
s3, after entering the volute type silencing pipe 302, the scattered airflow is repeatedly refracted and buffered by the plurality of buffer blades 4 in the volute type silencing pipe 302 to absorb kinetic energy of the airflow and decelerate the airflow;
s4, the airflow processed by the scroll muffler 302 is discharged through the exhaust pipe 5 and joins the main airflow in the main stack 1 to flow in the exhaust direction of the main stack 1.
The silencer is arranged in a main ventilation pipe 1 and is positioned at the joint of a branch ventilation pipe and the main ventilation pipe 1, the occupied space is small, the space utilization rate is high, when air flow enters a scroll silencer 3 through an air inlet 2, the air flow is firstly scattered by a mesh silencing pipe 303 to be decelerated, then enters a scroll silencing pipe 302, the air flow stroke is prolonged through the scroll silencing pipe 302, the air flow absorbs the kinetic energy of the air flow and reflects the air flow in the flowing process of the scroll silencing pipe 302 through the action of a plurality of buffering blades 4, meanwhile, the noise generated when the decelerated air flow collides with the inner wall of the scroll silencing pipe 302 is buffered by the buffering blades 4, finally the decelerated air flow enters the main ventilation pipe 1 through an exhaust pipe 5 connected to the scroll silencer 3, and the air flow discharged from the exhaust pipe 5 is further scattered through a plurality of through holes on the exhaust pipe 5, to reduce the noise generated by the high velocity air flow colliding with the air flow in the main ventilation pipe 1.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (8)
1. The utility model provides an imitative spiral case type noise elimination ventilation unit and application method thereof, includes an imitative spiral case type noise elimination ventilation unit, imitative spiral case type noise elimination ventilation unit includes trunk ventilation pipe (1), many evenly distributed's of fixedly connected with air inlet (2) on trunk ventilation pipe (1), the installation is installed branch trunk ventilation pipe on air inlet (2), pass through flange joint, its characterized in that between air inlet (2) and the branch trunk ventilation pipe: the vortex muffler (3) is installed in the air inlet (2), the vortex muffler (3) comprises an air inlet pipe (301), the lower end of the air inlet pipe (301) is fixedly connected with a vortex silencing pipe (302), a mesh silencing pipe (303) is connected between the vortex silencing pipe (302) and the air inlet pipe (301), a plurality of air holes which are uniformly distributed are formed in the mesh silencing pipe (303), a plurality of buffer blades (4) which are distributed in a staggered mode are connected in the vortex silencing pipe (302), a pair of exhaust pipes (5) are fixedly connected to the outer wall of the vortex silencing pipe (302), a plurality of air holes are formed in the exhaust pipes (5), the exhaust pipes (5) are communicated with the inner cavity of the vortex silencing pipe (302), a plurality of through holes are formed in the exhaust pipes (5), and a baffle plate (6) is arranged between every two adjacent vortex mufflers (3), the inner wall of the flow distribution plate (6) is fixedly connected with one end, far away from the worm-shaped silencing pipe (302), of the exhaust pipe (5).
2. The spiral-casing-imitating type silencing and ventilating device and the using method thereof according to claim 1 are characterized in that: the damping blade (4) is in a diamond scale shape, the damping blade (4) is formed by stamping elastic steel, the damping blades (4) are distributed on the inner wall of the volute type silencing pipe (302) in a scale shape, and the lower end of the damping blade (4) is fixedly connected with a sound absorbing sponge.
3. The spiral case-imitating type noise elimination ventilation device and the use method thereof according to claim 1 are characterized in that a sound insulation layer is laid on the outer wall of the main ventilation pipe (1).
4. The spiral-casing-imitating type silencing and ventilating device and the using method thereof according to claim 1 are characterized in that: flow distribution plate (6) are V style of calligraphy corrosion resistant plate, the contained angle of flow distribution plate (6) is 60, one end fixedly connected with guide plate that blast pipe (5) are close to scroll silencer (3), the guide plate is with the one end fixed connection of blast pipe (5).
5. The spiral-casing-imitating type silencing and ventilating device and the using method thereof according to claim 1 are characterized in that: the vent holes in the exhaust pipe (5) are distributed at one end far away from the flow distribution plate (6), and the aperture of each vent hole is 10-20 mm.
6. The spiral-casing-imitating type silencing and ventilating device and the using method thereof according to claim 1 are characterized in that: a plurality of uniformly distributed guide plates are paved on the main ventilation pipe (1), the inclination angle of each guide plate is 30-45 degrees, and the distance between every two adjacent guide plates is 3-5 cm.
7. The spiral-casing-imitating type silencing and ventilating device and the using method thereof according to claim 1 are characterized in that: the upper end of the mesh muffling pipe (303) is fixedly connected with a sealing ring of the air inlet pipe (301), and the sealing ring is fixedly connected with a flow guide ring matched with the mesh muffling pipe (303).
8. The spiral-casing-imitating type silencing and ventilating device and the using method thereof according to claim 1 are characterized in that: the using method comprises the following steps:
s1, connecting other air pipes with an air inlet (2) on the main ventilation pipe (1) by a technician to enable air flow to be converged into the main ventilation pipe (1) through the air inlet (2);
s2, when the airflow enters the main ventilation pipe (1), the airflow is firstly dispersed under the action of the mesh silencing pipe (303), and the airflow is decelerated and dispersed into a plurality of branches;
s3, enabling the scattered airflow to enter the volute type silencing pipe (302) and then repeatedly refract and buffer through a plurality of buffer blades (4) in the volute type silencing pipe (302) to absorb kinetic energy of the airflow and enable the airflow to decelerate;
and S4, discharging the airflow processed by the worm-shaped silencing pipe (302) through the exhaust pipe (5) and enabling the airflow to be intersected with the main airflow in the main ventilation pipe (1) to flow along the exhaust direction of the main ventilation pipe (1).
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| CN202010533361.8A CN111780398A (en) | 2020-06-12 | 2020-06-12 | Volute-simulated type noise elimination and ventilation device and using method thereof |
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| CN202010533361.8A CN111780398A (en) | 2020-06-12 | 2020-06-12 | Volute-simulated type noise elimination and ventilation device and using method thereof |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11201081A (en) * | 1998-01-19 | 1999-07-27 | Mitsubishi Electric Corp | Cross flow air blower |
| CN105258232A (en) * | 2015-10-09 | 2016-01-20 | 天津春凌科技有限公司 | Multifunctional indoor intelligent air purifier |
| CN106438485A (en) * | 2016-11-08 | 2017-02-22 | 广东美的厨房电器制造有限公司 | Volute of extractor hood and extractor hood |
| CN206724445U (en) * | 2017-04-28 | 2017-12-08 | 湖南城市学院 | A kind of silencer for HVAC ventilating system |
| CN207214398U (en) * | 2017-09-14 | 2018-04-10 | 四川科信环保工程有限公司 | The central air conditioning group noise reduction system installed concentratedly |
| CN107975853A (en) * | 2018-01-11 | 2018-05-01 | 山东小鸭集团小家电有限公司 | A kind of low noise self-cleaning type range hood |
| CN209875500U (en) * | 2019-03-14 | 2019-12-31 | 杭州老板电器股份有限公司 | Low-noise fan and range hood |
| CN210013744U (en) * | 2019-05-15 | 2020-02-04 | 轻骑集团江门光速摩托车有限公司 | Motorcycle exhaust pipe silencing device |
| CN212538244U (en) * | 2020-06-12 | 2021-02-12 | 江苏亚星波纹管有限公司 | Volute-simulated noise elimination and ventilation device |
-
2020
- 2020-06-12 CN CN202010533361.8A patent/CN111780398A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11201081A (en) * | 1998-01-19 | 1999-07-27 | Mitsubishi Electric Corp | Cross flow air blower |
| CN105258232A (en) * | 2015-10-09 | 2016-01-20 | 天津春凌科技有限公司 | Multifunctional indoor intelligent air purifier |
| CN106438485A (en) * | 2016-11-08 | 2017-02-22 | 广东美的厨房电器制造有限公司 | Volute of extractor hood and extractor hood |
| CN206724445U (en) * | 2017-04-28 | 2017-12-08 | 湖南城市学院 | A kind of silencer for HVAC ventilating system |
| CN207214398U (en) * | 2017-09-14 | 2018-04-10 | 四川科信环保工程有限公司 | The central air conditioning group noise reduction system installed concentratedly |
| CN107975853A (en) * | 2018-01-11 | 2018-05-01 | 山东小鸭集团小家电有限公司 | A kind of low noise self-cleaning type range hood |
| CN209875500U (en) * | 2019-03-14 | 2019-12-31 | 杭州老板电器股份有限公司 | Low-noise fan and range hood |
| CN210013744U (en) * | 2019-05-15 | 2020-02-04 | 轻骑集团江门光速摩托车有限公司 | Motorcycle exhaust pipe silencing device |
| CN212538244U (en) * | 2020-06-12 | 2021-02-12 | 江苏亚星波纹管有限公司 | Volute-simulated noise elimination and ventilation device |
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