CN116104752B - Efficient noise reduction adsorption muffler embedded pipe and preparation process thereof - Google Patents

Efficient noise reduction adsorption muffler embedded pipe and preparation process thereof Download PDF

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Publication number
CN116104752B
CN116104752B CN202310390456.2A CN202310390456A CN116104752B CN 116104752 B CN116104752 B CN 116104752B CN 202310390456 A CN202310390456 A CN 202310390456A CN 116104752 B CN116104752 B CN 116104752B
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China
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fixedly connected
muffler
thick bamboo
layer
embedded pipe
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CN116104752A (en
Inventor
王元元
王士远
王士寇
王世莽
张金亮
王冠琛
王亚琛
刘敏娜
蒋锦艳
张木
王向阳
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Hebei Amusen Filter Paper Co ltd
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Hebei Amusen Filter Paper Co ltd
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/24—Polyesters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/001—Noise damping
    • 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
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/26—All layers being made of paper or paperboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/716—Degradable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Exhaust Silencers (AREA)
  • Compressor (AREA)

Abstract

The invention provides an adsorption muffler embedded pipe with high efficiency and noise reduction and a preparation process thereof, and relates to the technical field of mufflers. This high-efficient absorption formula silencer of making an uproar of falling inlays pipe, including sound attenuation section of thick bamboo and section of thick bamboo core, the equal fixedly connected with of top cap bottom both sides is relative the installation hook that sets up, installation ring top both sides intermediate position all runs through and is provided with the mounting groove, installation ring both sides intermediate position all runs through and sliding connection has spring button, the section of thick bamboo core is including outer, outer inboard is provided with the intermediate level, the intermediate level inboard is provided with the inlayer. Through pushing down the top cap, pressing the spring button of both sides again, making the installation hook slide out from the mounting groove through reset spring's resilience effect simultaneously, can dismantle the top cap, can change the section of thick bamboo core in the sound attenuation section of thick bamboo afterwards for the silencer can change alone and use, has reduced use cost.

Description

Efficient noise reduction adsorption muffler embedded pipe and preparation process thereof
Technical Field
The invention relates to the technical field of silencers, in particular to an adsorption type silencer embedded pipe with high efficiency in noise reduction and a preparation process thereof.
Background
The silencer refers to an airflow pipeline with noise propagation, and noise in the pipeline can be attenuated or reflected back by using a pipeline with a sound absorption lining and an elbow or using noise reduction devices such as pipelines with suddenly changed sectional areas and discontinuous acoustic impedances, various automatic equipment is increased along with the high-speed development of society, the influence of the noise in auxiliary equipment is gradually deepened into the life of people, but the influence of the long-term noise can cause physical discomfort, serious diseases can also occur, and then the noise silencer of the auxiliary equipment is produced, so that a part of problems are solved. Taking the pneumatic diaphragm pump as an example, the silencer is mainly composed of an outer shell and an inner embedded pipe, the whole silencer needs to be replaced when being maintained and replaced, the embedded pipe cannot be replaced independently, the use cost is increased, most of glass fiber paper on the market is used as the embedded pipe, the cost is high, the texture is softer, the silencer is easy to break in the high-strength exhaust noise reduction process, and in addition, the silencing effect can only reach about 70 dB of the fixed degree and cannot be improved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the adsorption muffler embedded pipe with high efficiency and noise reduction and the preparation process thereof, and solves the problems that the noise elimination efficiency is fixed, and the use cost cannot be independently replaced and is too high.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides an absorption formula silencer embedded pipe of making an uproar falls in high efficiency, includes a sound elimination section of thick bamboo and a section of thick bamboo core, the sound elimination section of thick bamboo is including the barrel, barrel bottom fixedly connected with base, base bottom intermediate position fixedly connected with fixation nut, fixation nut bottom fixedly connected with connection swivel nut, intercommunication each other between connection swivel nut, fixation nut, barrel and the base, four evenly distributed's of barrel top fixedly connected with bracing piece, fixedly connected with collar between the bracing piece top, the collar top is provided with the top cap, the equal fixedly connected with of top cap bottom both sides is relative the installation hook that sets up, collar top both sides intermediate position all runs through
Wear and be provided with the mounting groove, equal fixedly connected with reset spring in mounting groove bottom and installation hook respectively with the mounting groove between sliding connection, the go-between both sides intermediate position of collar all runs through and sliding connection has spring button, the section of thick bamboo core is including outer, outer inboard is provided with the intermediate level, the intermediate level inboard is provided with the inlayer.
Preferably, a preparation process of the adsorption muffler embedded pipe with high efficiency and noise reduction comprises the following steps:
s1, preparation of an inner layer
Using an inclined wire paper machine, selecting 90% of 80D-100D denier plant fibers and 10% of 30D denier PET high-strength synthetic fibers to form base paper by using a wet papermaking method, and then using activated carbon mixed glue to dip-coat after drying;
s2, preparing an intermediate layer
Using an inclined wire paper machine, selecting 50% of fluffy plant fibers, 40% of fine plant fibers and 10% of PTE porous fibers to form base paper by using a wet papermaking method, and then using phenolic resin to carry out surface gluing after drying to improve the tensile force;
s3, inner layer preparation
Using an inclined wire paper machine, selecting plant fibers with high tensile force, using a wet papermaking method to carry out paper making, then drying and then carrying out single-sided coating, wherein the coating glue is a mixed solution of a high-efficiency composite waterproof agent and acrylic acid;
s4, compounding
Spreading the prepared inner layer, middle layer and outer layer on a compound device, bonding, fixing and forming by using phenolic resin, and curing the formed barrel core semi-finished product at high temperature to obtain a finished product barrel core;
s5, assembling
The silencing barrel is of an integrated structure, the manufactured barrel core is placed between the supporting rods from the top cover, and then the mounting hooks on the top cover are inserted into the mounting grooves to be limited and fixed, so that the silencing barrel can be assembled.
Preferably, in the step S1, the dip-coating amount of the adhesive is controlled to be 5% -15%; in the step S2, the surface coating amount of the surface coating is controlled to be 5% -15%; in the step S3, the coating glue amount is controlled to be 10% -15%.
Preferably, the outer layer, the middle layer and the inner layer are prepared by controlling the air permeability of each layer within 1000-1500L/m & s.
Working principle: when the muffler is installed and used, the muffler is connected with the installation equipment through the connecting screw sleeve, sound waves enter the cylinder core, most of sound energy is absorbed to play a role in silencing, when the cylinder core needs to be replaced, the top cover is pressed down, the spring buttons on the two sides are pressed down, meanwhile, the installation hooks slide out of the installation grooves through the rebound effect of the reset springs, the top cover can be detached, and then the cylinder core in the muffler cylinder can be replaced, so that the muffler can be replaced and used independently; in addition, from the material selection, the interlayer structure and strength are improved by combining the high-permeability material with special resin; secondly, in order to increase the adaptability of the embedded pipe, the material composition and the resin with different effects are subjected to shape selection and compounding, so that the practicability of each environment is achieved; subsequently, to better reduce noise, better porosity is achieved from the combined interlayer bonding of the materials, and better faster exhaust rates are achieved; finally, the raw materials mainly comprise natural plant material and resin, so that the cost is greatly reduced compared with that of glass fiber materials, and meanwhile, the raw materials are degradable materials and cannot be degraded compared with the glass fiber materials, so that the environmental pollution is reduced.
The invention provides an adsorption muffler embedded pipe with high efficiency and noise reduction and a preparation process thereof. The beneficial effects are as follows:
1. firstly, selecting materials from materials, and adding high-permeability materials and special resin to increase interlayer structural property and strength; secondly, in order to increase the adaptability of the embedded pipe, the material composition and the resin with different effects are subjected to shape selection and compounding, so that the practicability of each environment is achieved; subsequently, to better reduce noise, better porosity is achieved from the combined interlayer bonding of the materials, and better faster exhaust rates are achieved; finally, the raw materials mainly comprise natural plant material and resin, so that the cost is greatly reduced compared with that of glass fiber materials, and meanwhile, the raw materials are degradable materials and cannot be degraded compared with the glass fiber materials, so that the environmental pollution is reduced.
2. According to the invention, the top cover is pressed down, the spring buttons on the two sides are pressed down, and the mounting hooks slide out of the mounting grooves under the rebound action of the reset springs, so that the top cover can be disassembled, and then the cylinder core in the silencing cylinder can be replaced, so that the silencer can be replaced and used independently, and the use cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is an exploded view of the present invention;
fig. 4 is an enlarged view at a in fig. 3.
1, a silencing barrel; 2. a cylinder core; 3. a cylinder; 4. a base; 5. connecting a screw sleeve; 6. a support rod; 7. a mounting ring; 8. a top cover; 9. a spring button; 10. an outer layer; 11. an intermediate layer; 12. an inner layer; 13. a mounting hook; 14. a fixing nut; 15. a mounting groove; 16. and a return spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1-4, the embodiment of the invention provides an adsorption muffler embedded pipe with high efficiency noise reduction, which comprises a muffler barrel 1 and a barrel core 2, wherein the muffler barrel 1 comprises a barrel body 3, the bottom of the barrel body 3 is fixedly connected with a base 4, the middle position of the bottom of the base 4 is fixedly connected with a fixing nut 14, the bottom of the fixing nut 14 is fixedly connected with a connecting screw sleeve 5, the fixing nut 14, the barrel body 3 and the base 4 are mutually communicated, the top of the barrel body 3 is fixedly connected with four uniformly distributed supporting rods 6, the top ends of the supporting rods 6 are fixedly connected with a mounting ring 7, the top of the mounting ring 7 is provided with a top cover 8, two opposite mounting hooks 13 are fixedly connected with two sides of the bottom of the top cover 8, the middle positions of the top of the mounting ring 7 are penetrated and provided with mounting grooves 15, the bottom of the mounting grooves 15 are fixedly connected with reset springs 16, the mounting hooks 13 are respectively connected with the mounting grooves 15 in a sliding manner, the middle positions of the two sides of the mounting ring 7 are penetrated and are connected with spring buttons 9 in a sliding manner, the barrel core 2 comprises an outer layer 10, the inner layer 11 is arranged on the inner side of the outer layer, and an inner layer 12 is arranged on the inner layer 11. When the muffler is installed and used, the sound wave enters the cylinder core 2 through the connecting screw sleeve 5 and is connected with the installation equipment, most of sound energy is absorbed to play a silencing role, when the cylinder core 2 needs to be replaced, the top cover 8 is pressed down, the spring buttons 9 on the two sides are pressed down, meanwhile, the installation hooks 13 slide out of the installation grooves 15 through the rebound effect of the reset springs 16, the top cover 8 can be detached, and then the cylinder core 2 in the silencing cylinder 1 can be replaced, so that the muffler can be replaced and used independently.
Example 2
As shown in fig. 1-4, the embodiment of the invention provides a preparation process of an adsorption muffler embedded pipe with high efficiency and noise reduction, which comprises the following steps:
s1, preparation of an inner layer
Using an inclined wire paper machine, selecting 90%80D denier plant fiber and 10%30D denier PET high strength synthetic fiber to make base paper by using a wet paper making method, then using active carbon mixed glue to dip-coat after drying, and automatically adjusting the dip-coat actual dosage according to the required state, so as to achieve proper tension and strength and simultaneously maintain the maximum air permeability, thereby achieving the effects of improving hardness and absorbing odor;
s2, preparing an intermediate layer
Using an inclined wire paper machine, selecting 50% of fluffy plant fibers, 40% of fine plant fibers and 10% of PTE porous fibers to form base paper by using a wet papermaking method, then using phenolic resin to carry out surface gluing after drying, improving the tensile force, wherein the phenolic resin forms a porous layer after solidification to play a role that other glues cannot play, the actual gluing dosage is automatically regulated according to the required state, so that proper tensile force is achieved, the interlayer porosity is reserved as far as possible, and the maximum porosity is reserved while certain tensile force ensures the later combination, thereby achieving good sound absorption and noise elimination effects;
s3, inner layer preparation
Using an inclined wire paper machine, selecting plant fibers with high tensile strength to carry out paper making by using a wet paper making method, then carrying out single-sided coating after drying, and coating glue into a mixed solution of a high-efficiency composite waterproof agent and acrylic acid, so that the water-repellent layer can reach more than 10 grades, the water-repellent layer can be well waterproof, and the icing condition can be reduced, thereby improving the efficiency and the service time;
s4, compounding
Spreading the prepared inner layer 12, middle layer 11 and outer layer 10 on a composite device, bonding, fixing and forming by using phenolic resin, and curing the formed semi-finished product of the cylinder core 2 at high temperature to obtain the finished product of the cylinder core 2;
s5, assembling
The silencing barrel 1 is of an integrated structure, the manufactured barrel core 2 is placed between the supporting rods 6 from the top cover 8, and then the mounting hooks 13 on the top cover 8 are aligned with the mounting grooves 15 to be inserted into the limiting fixing grooves, so that the silencing barrel can be assembled. Firstly, selecting materials from the materials, and adding interlayer structural property and strength by combining high-permeability materials with special resin; secondly, in order to increase the adaptability of the embedded pipe, the material composition and the resin with different effects are subjected to shape selection and compounding, so that the practicability of each environment is achieved; subsequently, to better reduce noise, better porosity is achieved from the combined interlayer bonding of the materials, and better faster exhaust rates are achieved; finally, the raw materials mainly comprise natural plant material and resin, so that the cost is greatly reduced compared with that of glass fiber materials, and meanwhile, the raw materials are degradable materials and cannot be degraded compared with the glass fiber materials, so that the environmental pollution is reduced.
In the step S1, the dip-coating glue amount is controlled to be 5%; s2, controlling the surface coating amount of the surface coating to be 5%; in the step S3, the coating glue amount is controlled to be 10%.
The air permeability of the outer layer 10, the middle layer 11 and the inner layer 12 is controlled to be within the following preparation
1000-1500L/m.
Example 3
As shown in fig. 1-4, the embodiment of the invention provides a preparation process of an adsorption muffler embedded pipe with high efficiency and noise reduction, which comprises the following steps:
s1, preparation of an inner layer
Using a inclined wire paper machine, 90% 100D denier plant fiber and 10%30D denier PET were selected
The high-strength synthetic fiber is formed by using a wet papermaking method to form base paper, then the base paper is subjected to dip coating by using activated carbon mixed glue after being dried, the actual dip coating dosage is automatically adjusted according to the requirement state, and the maximum air permeability is reserved while the proper tensile force and strength are achieved, so that the effects of improving the hardness and absorbing the odor are achieved;
s2, preparing an intermediate layer
Using an inclined wire paper machine, selecting 50% of fluffy plant fibers, 40% of fine plant fibers and 10% of PTE porous fibers to form base paper by using a wet papermaking method, then using phenolic resin to carry out surface gluing after drying, improving the tensile force, wherein the phenolic resin forms a porous layer after solidification to play a role that other glues cannot play, the actual gluing dosage is automatically regulated according to the required state, so that proper tensile force is achieved, the interlayer porosity is reserved as far as possible, and the maximum porosity is reserved while certain tensile force ensures the later combination, thereby achieving good sound absorption and noise elimination effects;
s3, inner layer preparation
Using an inclined wire paper machine, selecting plant fibers with high tensile strength to carry out paper making by using a wet paper making method, then carrying out single-sided coating after drying, and coating glue into a mixed solution of a high-efficiency composite waterproof agent and acrylic acid, so that the water-repellent layer can reach more than 10 grades, the water-repellent layer can be well waterproof, and the icing condition can be reduced, thereby improving the efficiency and the service time;
s4, compounding
Spreading the prepared inner layer 12, middle layer 11 and outer layer 10 on a composite device, bonding, fixing and forming by using phenolic resin, and curing the formed semi-finished product of the cylinder core 2 at high temperature to obtain the finished product of the cylinder core 2;
s5, assembling
The silencing barrel 1 is of an integrated structure, the manufactured barrel core 2 is placed between the supporting rods 6 from the top cover 8, and then the mounting hooks 13 on the top cover 8 are aligned with the mounting grooves 15 to be inserted into the limiting fixing grooves, so that the silencing barrel can be assembled. Firstly, selecting materials from the materials, and adding interlayer structural property and strength by combining high-permeability materials with special resin; secondly, in order to increase the adaptability of the embedded pipe, the material composition and the resin with different effects are subjected to shape selection and compounding, so that the practicability of each environment is achieved; subsequently, to better reduce noise, better porosity is achieved from the combined interlayer bonding of the materials, and better faster exhaust rates are achieved; finally, the raw materials mainly comprise natural plant material and partial resin, the cost is greatly reduced compared with glass fiber materials,
meanwhile, as the raw materials are degradable materials and can not be degraded compared with glass fiber materials, the environmental pollution is reduced.
In the step S1, the dip-coating glue amount is controlled to be 5% -15%; s2, controlling the surface coating amount of the surface coating to be 15%; in the step S3, the coating glue amount is controlled to be 15%.
The air permeability of each of the outer layer 10, the middle layer 11 and the inner layer 12 is controlled within 1000-1500L/m.s after the preparation is completed.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. The utility model provides an absorption formula silencer embedded pipe of making an uproar falls in high efficiency, includes sound attenuation section of thick bamboo (1) and section of thick bamboo core (2), its characterized in that: the silencing barrel (1) comprises a barrel body (3), a base (4) is fixedly connected to the bottom of the barrel body (3), a fixing nut (14) is fixedly connected to the middle position of the bottom of the base (4), a connecting screw sleeve (5) is fixedly connected to the bottom of the fixing nut (14), the connecting screw sleeve (5), the fixing nut (14), the barrel body (3) and the base (4) are mutually communicated, four evenly distributed supporting rods (6) are fixedly connected to the top of the barrel body (3), a mounting ring (7) is fixedly connected to the top of the supporting rods (6), a top cover (8) is arranged at the top of the mounting ring (7), two mounting hooks (13) which are oppositely arranged are fixedly connected to the two sides of the bottom of the top cover (8), a mounting groove (15) is penetrated and arranged at the middle positions of the two sides of the top of the mounting ring (7), a reset spring (16) is fixedly connected to the bottom of the mounting groove (15) and is respectively and slidably connected with the mounting hooks (13), a button (9) is fixedly connected to the middle positions of the two sides of the mounting ring (7), an outer layer (10) is penetrated through the middle layer (10), an inner layer (12) is arranged on the inner side of the middle layer (11);
the preparation process of the adsorption muffler embedded pipe comprises the following steps:
s1, preparation of an inner layer
Using a inclined wire paper machine, selecting 90%80D-100D denier plant fiber and 10%30D denier PET high strength synthetic fiber to form base paper by using a wet papermaking method, and then using activated carbon mixed glue to dip-coat after drying;
s2, preparing an intermediate layer
Using an inclined wire paper machine, selecting 50% of fluffy plant fibers, 40% of fine plant fibers and 10% of PTE porous fibers to form base paper by using a wet papermaking method, and then using phenolic resin to carry out surface gluing after drying to improve the tensile force;
s3, inner layer preparation
Using an inclined wire paper machine, selecting plant fibers with high tensile force, using a wet papermaking method to carry out paper making, then drying and then carrying out single-sided coating, wherein the coating glue is a mixed solution of a high-efficiency composite waterproof agent and acrylic acid;
s4, compounding
Spreading the prepared inner layer (12), middle layer (11) and outer layer (10) on a compounding device, bonding, fixing and forming by using phenolic resin, and curing the formed semi-finished product of the cylinder core (2) at high temperature to obtain the finished product of the cylinder core (2);
s5, assembling
The silencing cylinder (1) is of an integrated structure, the manufactured cylinder core (2) is placed between the supporting rods (6) from the top cover (8), and then the mounting hooks (13) on the top cover (8) are aligned with the mounting grooves (15) to be inserted into the mounting grooves for limiting and fixing, so that the silencing cylinder can be assembled.
2. The process for preparing the efficient noise-reducing adsorption muffler embedded pipe, which is disclosed in claim 1, is characterized in that: in the step S1, the dip-coating glue amount is controlled to be 5% -15%; in the step S2, the surface coating amount of the surface coating is controlled to be 5% -15%; in the step S3, the coating glue amount is controlled to be 10% -15%.
3. Preparation of efficient noise reduction adsorption muffler embedded pipe as claimed in claim 1The process is characterized in that: the air permeability of the outer layer (10), the middle layer (11) and the inner layer (12) is controlled to be 1000-1500L/m after the preparation 2 S is within.
CN202310390456.2A 2023-04-13 2023-04-13 Efficient noise reduction adsorption muffler embedded pipe and preparation process thereof Active CN116104752B (en)

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Citations (5)

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Publication number Priority date Publication date Assignee Title
CN85204510U (en) * 1985-10-14 1986-07-23 机械工业部济南铸造锻压机械研究所 Exhausting silencer
CN101229697A (en) * 2007-01-26 2008-07-30 揖斐电株式会社 Sheet member, forming method of the same, exhaust gas treatment apparatus, and muffling apparatus
CN210087611U (en) * 2019-05-27 2020-02-18 洛阳市鑫鼎源光电元件有限责任公司 Screw air compressor silencer
CN216407135U (en) * 2021-11-23 2022-04-29 常州风特安泵业有限公司 Noise-reducing and condensation-preventing silencer for mining diaphragm pump
CN216780423U (en) * 2021-12-23 2022-06-21 西恩斯(上海)工业材料有限公司 Positioning tool for sealing gasket machining

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11421911B2 (en) * 2018-08-22 2022-08-23 Oneida Air Systems, Inc. Modular stacking sound filter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85204510U (en) * 1985-10-14 1986-07-23 机械工业部济南铸造锻压机械研究所 Exhausting silencer
CN101229697A (en) * 2007-01-26 2008-07-30 揖斐电株式会社 Sheet member, forming method of the same, exhaust gas treatment apparatus, and muffling apparatus
CN210087611U (en) * 2019-05-27 2020-02-18 洛阳市鑫鼎源光电元件有限责任公司 Screw air compressor silencer
CN216407135U (en) * 2021-11-23 2022-04-29 常州风特安泵业有限公司 Noise-reducing and condensation-preventing silencer for mining diaphragm pump
CN216780423U (en) * 2021-12-23 2022-06-21 西恩斯(上海)工业材料有限公司 Positioning tool for sealing gasket machining

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