CN112393298A - Frame-type range hood sound-absorbing box based on modified composite sound-absorbing cotton - Google Patents
Frame-type range hood sound-absorbing box based on modified composite sound-absorbing cotton Download PDFInfo
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- CN112393298A CN112393298A CN202011337232.8A CN202011337232A CN112393298A CN 112393298 A CN112393298 A CN 112393298A CN 202011337232 A CN202011337232 A CN 202011337232A CN 112393298 A CN112393298 A CN 112393298A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses a frame-type range hood sound absorption box based on modified composite sound absorption cotton, which relates to the technical field of noise reduction of range hoods and comprises a range hood shell, a frame and a smoke absorption pipeline, wherein the range hood shell is arranged on a wall, the frame is arranged below the range hood shell, the smoke absorption pipeline is arranged at the top of the range hood shell, and the modified sound absorption cotton is used as a sound absorption material to absorb the noise of a range hood in a kitchen and the noise of cooking.
Description
Technical Field
The invention relates to the technical field of noise reduction of range hoods, in particular to a frame type range hood sound absorption box based on modified composite sound absorption cotton.
Background
All the sounds which obstruct people from normally resting, studying and working and the sounds which interfere with the sounds to be heard by people belong to noises. In this sense, noise sources such as car sounds on the street, silent library speech sounds, construction site machine sounds, and loud sounds from neighboring televisions are all noise sources.
Noise everywhere in the life is visible, noise in the family is mainly the noise in the kitchen, and the main source of noise in the kitchen is the noise of cooking and lampblack absorber, the mode of making an uproar falls in present range hood, mainly reduce the noise of fan and give first place to, but as the main source of kitchen noise, the noise reduction effect is not very ideal always, frame-type range hood, the primary function prevents the oil smoke diffusion, concentrate the oil smoke in certain area, then take away, this kind of range hood compares traditional lampblack absorber noise and the absorbing effect of oil smoke all good, but not good enough, the noise problem still hardly solves, consequently, need improve frame-type range hood.
Disclosure of Invention
In order to solve the technical problems, the invention provides a frame type range hood sound absorption box based on modified composite sound absorption cotton.
The technical scheme of the invention is as follows: a frame-type range hood sound absorption box based on modified composite sound absorption cotton comprises a range hood shell, a frame and a smoke absorption pipeline, wherein the range hood shell is installed on a wall, the frame is installed below the range hood shell, the smoke absorption pipeline is installed at the top of the range hood shell, the frame comprises side plates, a sound absorption layer, an acrylic plate, buffer strips, screw assemblies and rubber strips, the side plates are of a semi-enclosed structure, the top of the side plates is fixedly connected with cross plates, the bottom of the side plates is in contact with a cooking bench, the outer sides of the side plates are fixed with the cooking bench through glass cement, sealing gaskets are padded at contact positions of the cross plates and the range hood shell and are fixed with the upper range hood shell through nuts, the acrylic plate is located on the inner sides of the side plates and is fixed with the inner sides of the side plates through the screw assemblies, the sound absorption layer is clamped between the acrylic plate and the side plates, and the bottoms of the acrylic plate are in contact, inferior gram force board surface is equipped with a plurality of aperture, the side and the top of oil smoke casing have all wrapped up the U type shell, the inside sound absorbing layer that packs of U type shell, lampblack absorber shell surface is equipped with a plurality of sound absorbing holes, is located to be equipped with the connecting plate that is used for sealed U type shell clearance in the clearance between the adjacent U type shell of side, and the U type shell top both sides that are located the lampblack absorber top are equipped with and are used for sealed lid.
Furthermore, the inner layer of the smoke suction pipeline adopts a stainless steel high-temperature-resistant hose, the layer of the stainless steel high-temperature-resistant hose is wrapped by a sound absorption layer, the outside of the sound absorption layer is wrapped by regenerated rubber, the smoke suction pipeline is in threaded connection with the lampblack machine shell, and the noise reduction treatment is carried out on the stainless steel high-temperature-resistant hose through the sound absorption layer.
Furthermore, the screw assembly comprises a cylindrical shell, a plastic threaded pile and a screw, wherein the cylindrical shell is transversely fixed on the inner wall of the side plate, a buckle is arranged in the cylindrical shell, the plastic threaded pile is transversely inserted into the cylindrical shell, a clamping groove matched with the buckle is formed in one side, close to the cylindrical shell, of the plastic threaded pile, two rotating lugs used for rotating the plastic threaded pile are arranged on one side, far away from the cylindrical shell, of the plastic threaded pile, and the screw penetrates through the acrylic plate and the sound absorbing layer to be in threaded connection with the plastic threaded pile.
Further, inhale the sound layer and include that inboard pad, outside pad to be close to top of a kitchen range center one side for the inboard, keep away from top of a kitchen range one side for the outside, the inboard fixedly connected with wave of outside pad is inhaled the sound and is filled up, inhale the crest of sound pad with inboard pad fixed connection, trough department are equipped with and inhale the sound way, the outside of inhaling the sound way is equipped with the resonant cavity, the inboard board is equipped with the sound receiving hole with inhaling the same horizontal direction of sound way, the sound receiving hole aligns with sound absorbing hole and aperture respectively, makes the sound wave absorb inside through the complicated structure who inhales the sound layer, has increased the surface area of absorbing the sound wave.
Further, the preparation method of the sound absorption layer comprises the following steps:
s1: preparing a modifier: crushing, ball-milling and drying the coal gangue, grinding the coal gangue into powder, sieving the powder by a 250-mesh sieve to obtain coal gangue nano powder, and performing microwave treatment on the coal gangue nano powder to obtain coal gangue nano powder according to the weight ratio of 1: 5, adding the mixture into an isoamylol solution with the mass concentration of 20%, stirring and melting at 45 ℃, then carrying out microwave hydrothermal reaction, filtering by using industrial filter cloth to obtain a substance on the filter cloth, and washing and drying to obtain the coal gangue nanogel;
s2: preparing modified sound-absorbing cotton: mixing and melting the polyester chip and the coal gangue nanogel according to the mass ratio of 2:1, and uniformly mixing the polyester chip and the coal gangue nanogel to obtain a modified polyester material;
s3: preparing a sound absorption layer: the modified polyester material is melt-blown into fibers by adopting a melt-blowing method, a melt-blowing head is arranged at a discharge port of 3D printing equipment, and a sound absorbing layer structure is printed by a 3D printing technology to obtain a sound absorbing layer.
Further, the microwave hydrothermal reaction pressure is as follows: 1.6MPa, and the reaction temperature is as follows: the reaction time is as follows: and (4) 1 h.
Further, the co-melting temperature is 265 ℃, stirring is carried out in the co-melting stage, and the co-melting stirring time is 1-1.5 h.
Further, the drying in the S1 adopts hot air drying at 50-80 ℃.
The invention has the beneficial effects that:
(1) according to the invention, under the condition that the performance of the fan of the range hood is not reduced, the frame type range hood is improved, so that the frame of the range hood is changed into a sound insulation device, and the sound of fried dishes or the noise of the fan of the range hood can be greatly reduced.
(2) According to the invention, the outer shell of the range hood and the pipeline of the range hood are modified, the sound absorption layer made of the modified sound absorption cotton is wrapped on the outer side of the frame type oil smoke absorption pipe, and the smoke absorption pipe is connected with the range hood through threads, so that the connection mode is reliable, the smoke absorption pipe cannot easily fall off, the surface of the traditional sound absorption cotton is attached with oil smoke after long-term oil smoke erosion, the sound absorption effect is influenced, the sound absorption layer can be replaced, the replacement is convenient, and the trouble brought to users by the problems can be effectively solved.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is an enlarged view at B in fig. 1.
Fig. 4 is a structural view of the screw assembly of the present invention.
FIG. 5 is a schematic view of the sound-absorbing layer of the present invention.
The range hood comprises a range hood shell 1, a range hood shell 2, a frame 3, a smoke absorbing pipeline 21, a side plate 22, a sound absorbing layer 23, an acrylic plate 24, a buffer strip 25, a screw component 26, a rubber strip 211, a cross strip plate 212, a sealing gasket 231, a small hole 11, a U-shaped shell 12, a sound absorbing hole 13, a connecting plate 14, a sealing cover 31, a stainless steel high-temperature-resistant hose 32, regenerated rubber 32, a cylindrical shell 251, a plastic threaded pile 252, a screw 253, a buckle 254, a clamping groove 255, a 256-rotating lug, an inner side pad 221, an outer side pad 222, a sound absorbing pad 223, a sound absorbing pipeline 224, a resonant cavity 225 and a sound absorbing hole 226.
Detailed Description
As shown in fig. 1-3, a frame-type range hood sound absorption box based on modified composite sound absorption cotton comprises a range hood casing 1, a frame 2 and a smoke absorption pipeline 3, wherein the range hood casing 1 is installed on a wall, the frame 2 is installed below the range hood casing 1, the smoke absorption pipeline 3 is installed at the top of the range hood casing 1, the frame 2 comprises a side plate 21, a sound absorption layer 22, an acrylic plate 23, a buffer strip 24, a screw assembly 25 and a rubber strip 26, the side plate 21 is a semi-surrounding structure, the top is fixedly connected with a cross plate 211, the bottom is in contact with a cooking bench through the buffer strip 24, the outer side is fixed with the cooking bench through glass cement, a sealing gasket 212 is padded at the contact part of the cross plate 211 and the range hood casing 1, and is fixed with the range hood casing 1 above through a nut, the acrylic plate 23 is located at the inner side of the side plate 21 and is fixed with the inner side of the side plate 21 through the screw assembly 25, the sound, contact with the top of a kitchen range through rubber strip 26 bottom inferior gram force board 23, inferior gram force board 23 surface is equipped with a plurality of aperture 231, the side and the top of oil smoke casing 1 all wrap up U type shell 11, the inside sound layer 22 that inhales that fills of U type shell 11, oil smoke casing 1 surface is equipped with a plurality of sound holes 12 of inhaling, be located and be equipped with the connecting plate 13 that is used for sealed U type shell 11 clearance in the clearance between the adjacent U type shell 11 of side, the U type shell 11 top both sides that are located the lampblack absorber top are equipped with and are used for sealed lid 14.
The inner layer of the smoke suction pipeline 3 adopts a stainless steel high-temperature resistant hose 31, the layer of the stainless steel high-temperature resistant hose 31 is wrapped by a sound absorption layer 22, the outside of the sound absorption layer 22 is wrapped by reclaimed rubber 32, the smoke suction pipeline 3 is in threaded connection with the lampblack machine shell 1, and the stainless steel high-temperature resistant hose 31 is subjected to noise reduction treatment through the sound absorption layer 22.
As shown in fig. 4, the screw assembly 25 includes a cylindrical shell 251, a plastic threaded pile 252, and a screw 253, the cylindrical shell 251 is transversely fixed on the inner wall of the side plate 21, a buckle 254 is provided inside the cylindrical shell 251, the plastic threaded pile 252 is transversely inserted into the cylindrical shell 251, a locking groove 255 matched with the buckle 254 is provided on one side of the plastic threaded pile 252 close to the cylindrical shell 251, two rotating lugs 256 for rotating the plastic threaded pile 252 are provided on one side of the cylindrical shell 251, the screw 253 penetrates through the acrylic plate 23 and the sound absorbing layer 22 to be in threaded connection with the plastic threaded pile 252, and the screw assembly 25 of the present invention prevents the screw 253 from slipping by replacing the plastic threaded pile 252, which causes the unstable connection between the side plate 21 and the acrylic plate 23.
As shown in fig. 5, the sound absorption layer 22 includes an inner pad 221 and an outer pad 222, the side close to the center of the cooking range is an inner side, the side far away from the cooking range is an outer side, the inner side of the outer pad 222 is fixedly connected with a wave-shaped sound absorption pad 223, the wave crest of the sound absorption pad 223 is fixedly connected with the inner pad 221, the wave trough is provided with a sound absorption channel 224, the outer side of the sound absorption channel 224 is provided with a resonance cavity 225, the inner plate 21 and the sound absorption channel 224 are provided with sound absorption holes 226 in the same horizontal direction, the sound absorption holes 226 are respectively aligned with the sound absorption holes 12 and the small holes 231, sound waves are absorbed inside through the complex structure of the sound absorption layer 22, and the.
The preparation method of the sound absorbing layer 22 includes the steps of:
s1: preparing a modifier: crushing, ball-milling and drying the coal gangue, grinding the coal gangue into powder, sieving the powder by a 250-mesh sieve to obtain coal gangue nano powder, and performing microwave treatment on the coal gangue nano powder to obtain coal gangue nano powder according to the weight ratio of 1: 5 is added into isoamyl alcohol solution with the mass concentration of 20 percent, stirred and melted at the temperature of 45 ℃, and then microwave hydrothermal reaction is carried out, wherein the microwave hydrothermal reaction pressure is as follows: 1.6MPa, and the reaction temperature is as follows: the reaction time is as follows: filtering with industrial filter cloth for 1h to obtain substances on the filter cloth, washing and drying to obtain coal gangue nanogel, and drying with hot air at 50-80 ℃;
s2: preparing modified sound-absorbing cotton: mixing and co-melting the polyester slices and the coal gangue nanogel according to the mass ratio of 2:1, wherein the co-melting temperature is 265 ℃, stirring is carried out along with the co-melting stage, and the co-melting stirring time is 1h-1.5h, so that the polyester material slices and the coal gangue nanogel are uniformly mixed to obtain a modified polyester material;
s3: preparation of the sound-absorbing layer 22: the modified polyester material is melt-blown into fibers by adopting a melt-blowing method, a melt-blowing head is arranged at a discharge port of 3D printing equipment, and the sound absorption layer 22 structure is printed by a 3D printing technology to obtain the sound absorption layer 22.
The sound absorption principle of the invention is as follows:
the sound absorption layer 22 made of the modified sound absorption cotton has higher sound absorption efficiency, is high temperature resistant and is not easy to deform, noise enters the sound absorption layer 22 through the small holes 231 or the sound absorption holes 12, and after the noise is reflected and absorbed in the cavity formed at the wave trough position of the sound absorption pad 223, part of sound waves enter the resonant cavity 225 for resonance and are mutually counteracted or absorbed.
Claims (8)
1. The utility model provides a frame-type lampblack absorber sound absorption box based on cotton is inhaled to modified complex, a serial communication port, including lampblack shell (1), frame (2), smoking pipeline (3), lampblack shell (1) is installed on the wall, frame (2) are installed in lampblack shell (1) below, smoking pipeline (3) are installed at lampblack shell (1) top, frame (2) include curb plate (21), sound absorption layer (22), ya keli board (23), buffering strip (24), screw assembly (25), rubber strip (26), curb plate (21) are half-enclosure structure, top fixedly connected with horizontal plate (211), and the bottom is passed through buffering strip (24) and the top of a kitchen range contact, and the outside is fixed with the top of a kitchen range through glass glue, horizontal plate (211) and lampblack shell (1) contact site pad have sealed pad (212), and fix through the nut with top lampblack shell (1), inferior gram force board (23) are located the inboard of curb plate (21), and pass through screw subassembly (25) are inboard fixed with curb plate (21), noise floor (22) press from both sides between inferior gram force board (23) and curb plate (21), and inferior gram force board (23) bottom is passed through rubber strip (26) and top of a kitchen range contact, inferior gram force board (23) surface are equipped with a plurality of aperture (231), the side and the top of oil smoke casing (1) have all wrapped up U type shell (11), U type shell (11) inside packing noise floor (22), oil smoke casing (1) surface is equipped with a plurality of sound absorbing hole (12), is equipped with in the clearance between the adjacent U type shell (11) that is located the side and is used for sealing up connecting plate (13) in U type shell (11) clearance, and U type shell (11) top both sides that are located the lampblack absorber top are equipped with and are used for sealed lid (14) sealed.
2. A frame-type range hood sound-absorbing box based on modified composite sound-absorbing cotton as claimed in claim 1, wherein the inner layer of the smoke-absorbing duct (3) is made of stainless steel high temperature resistant hose (31), the layer of the stainless steel high temperature resistant hose (31) is wrapped with the sound-absorbing layer (22), the outer part of the sound-absorbing layer (22) is wrapped with regenerated rubber (32), and the smoke-absorbing duct (3) is connected with the range hood casing (1) by screw threads.
3. A frame type range hood sound absorption box based on modified composite sound absorption cotton as claimed in claim 1, wherein the screw assembly (25) comprises a cylindrical shell (251), a plastic threaded pile (252), and a screw (253), the cylindrical shell (251) is transversely fixed on the inner wall of the side plate (21), a buckle (254) is arranged inside the cylindrical shell (251), the plastic threaded pile (252) is transversely inserted inside the cylindrical shell (251), a clamping groove (255) matched with the buckle (254) is arranged on one side of the plastic threaded pile (252) close to the cylindrical shell (251), two rotating lugs (256) for rotating the plastic threaded pile (252) are arranged on one side far from the cylindrical shell (251), and the screw (253) passes through the acrylic plate (23) and the sound absorption layer (22) to be in threaded connection with the plastic threaded pile (252).
4. A frame type range hood sound absorption box based on modified composite sound absorption cotton as claimed in claim 1, wherein said sound absorption layer (22) comprises an inner pad (221) and an outer pad (222), one side near the center of the cooking bench is the inner side, and one side far away from the cooking bench is the outer side, the inner side of the outer pad (222) is fixedly connected with a wave-shaped sound absorption pad (223), the wave crest of the sound absorption pad (223) is fixedly connected with the inner pad (221), the wave trough is provided with a sound absorption channel (224), the outer side of the sound absorption channel (224) is provided with a resonance cavity (225), the inner plate (21) and the sound absorption channel (224) are provided with sound absorption holes (226) in the same horizontal direction, and the sound absorption holes (226) are respectively aligned with the sound absorption holes (12) and the small holes (231).
5. A frame-type range hood sound-absorbing box based on modified composite sound-absorbing cotton as claimed in claim 1, characterized in that the preparation method of the sound-absorbing layer (22) comprises the following steps:
s1: preparing a modifier: crushing, ball-milling and drying the coal gangue, grinding the coal gangue into powder, sieving the powder by a 250-mesh sieve to obtain coal gangue nano powder, and performing microwave treatment on the coal gangue nano powder to obtain coal gangue nano powder according to the weight ratio of 1: 5, adding the mixture into an isoamylol solution with the mass concentration of 20%, stirring and melting at 45 ℃, then carrying out microwave hydrothermal reaction, filtering by using industrial filter cloth to obtain a substance on the filter cloth, and washing and drying to obtain the coal gangue nanogel;
s2: preparing modified sound-absorbing cotton: mixing and melting the polyester chip and the coal gangue nanogel according to the mass ratio of 2:1, and uniformly mixing the polyester chip and the coal gangue nanogel to obtain a modified polyester material;
s3: preparation of the sound absorption layer (22): the modified polyester material is melt-blown into fibers by adopting a melt-blowing method, a melt-blowing head is arranged at a discharge port of 3D printing equipment, and a sound absorbing layer (22) structure is printed by a 3D printing technology to obtain the sound absorbing layer (22).
6. A frame-type range hood sound-absorbing box based on modified composite sound-absorbing cotton as claimed in claim 5, wherein the microwave hydrothermal reaction pressure is: 1.6MPa, and the reaction temperature is as follows: the reaction time is as follows: and (4) 1 h.
7. A frame-type range hood sound absorption box based on modified composite sound absorption cotton as claimed in claim 5, wherein the co-melting temperature is 265 ℃, the co-melting stage is accompanied with stirring, and the co-melting stirring time is 1h-1.5 h.
8. A frame-type range hood sound-absorbing box based on modified composite sound-absorbing cotton as claimed in claim 5, wherein the microwave hydrothermal reaction pressure is 1.6MPa, and the reaction time is 1 h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011337232.8A CN112393298B (en) | 2020-11-25 | 2020-11-25 | Frame type range hood sound absorbing box based on modified composite sound absorbing cotton |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011337232.8A CN112393298B (en) | 2020-11-25 | 2020-11-25 | Frame type range hood sound absorbing box based on modified composite sound absorbing cotton |
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| CN112393298A true CN112393298A (en) | 2021-02-23 |
| CN112393298B CN112393298B (en) | 2023-05-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114495879A (en) * | 2022-01-25 | 2022-05-13 | 江苏宝联气体有限公司 | Noise reduction device for oxygen generation equipment |
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| CN112393298B (en) | 2023-05-26 |
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