CN111810383A - Small air compressor for environmental protection construction and use method thereof - Google Patents
Small air compressor for environmental protection construction and use method thereof Download PDFInfo
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- CN111810383A CN111810383A CN202010845066.6A CN202010845066A CN111810383A CN 111810383 A CN111810383 A CN 111810383A CN 202010845066 A CN202010845066 A CN 202010845066A CN 111810383 A CN111810383 A CN 111810383A
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- airflow
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- air flow
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- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
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- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/123—Fluid connections
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention discloses a small air compressor for environmental protection construction and a using method thereof, belonging to the field of air compressors, wherein the principle of aerodynamics is utilized to enable two pneumatic components to approach each other under the action of air flow, thereby leading the front and the rear cross-sectional areas to have large abrupt changes, so as to improve the noise reduction effect, the larger the strength of the air flow is, the larger the change of the cross-sectional area of a pneumatic deformation shell is, the better the noise reduction effect is, the annular cavity channel in the pneumatic weakening component is utilized to weaken the air flow velocity, and two air inlet holes and one air outlet hole can lead the air flow to form convection, so as to play a certain noise reduction effect, a porous air flow disturbing ball is utilized to further weaken the air flow velocity, finally the air flow is ejected through air flow dispersing pipelines with different inner diameters, the abrupt changes of the cross-sectional areas are utilized again to reduce the noise, so as to further improve the noise reduction effect, compared, the effect of reducing noise by utilizing the sudden change of the cross-sectional area is enhanced.
Description
Technical Field
The invention relates to the field of air compressors, in particular to a small air compressor for environmental protection construction and a using method thereof.
Background
An air compressor is a device for compressing gas. The air compressor is constructed similarly to a water pump. Most air compressors are reciprocating piston type, rotating vane or rotating screw. The air compressor is a general mechanical product with large scale and wide range, is widely applied to departments of machinery, mines, chemical industry, buildings and the like, has high noise level and large influence, and becomes one of important environmental noise pollution sources.
The silencer is used for the air flow pipeline with noise propagation, and the noise in the pipeline can be attenuated or reflected by using noise reduction devices such as a pipeline and an elbow with a sound absorption lining or a pipeline with suddenly changed sectional area and other discontinuous acoustic impedances and the like.
The reactive muffler is formed by combining a pipe and a chamber with an abrupt interface, but the internal structure of the existing reactive muffler is fixed, the sectional area of a pipeline cavity cannot be changed, which means that the noise reduction capability of the reactive muffler is limited, and if the noise is not reduced well in construction, the noise can be amplified by several times in an open environment, which will bring influence to the surrounding environment.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a small air compressor for environmental protection construction and a using method thereof, which adopt a structure similar to a bird wing, and use the principle of aerodynamics to enable two pneumatic components to approach each other under the action of air flow, thereby changing the cross-sectional area of a pneumatic deformation shell, leading the front and the rear cross-sectional areas to have large abrupt changes, so as to improve the noise reduction effect, leading the air flow strength to be higher, leading the cross-sectional area change of the pneumatic deformation shell to be higher, leading the noise reduction effect to be better, utilizing an annular cavity channel inside the pneumatic weakening component to weaken the air flow velocity, leading two air inlet holes and one air outlet hole to form convection current to play a certain noise reduction effect, utilizing a porous air flow disturbance ball to further weaken the air flow velocity, leading the air flow to be ejected through air flow dispersion pipelines with different inner diameters, and utilizing the abrupt changes of the cross-sectional areas again to reduce noise, compared with the prior art, the dynamic change of the cross-sectional area is realized, and the effect of reducing noise by utilizing the sudden change of the cross-sectional area is enhanced.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A small-sized air compressor for environmental protection construction comprises an air inlet pipeline, wherein a plurality of airflow weakening pieces are fixedly connected to the inner wall of the air inlet pipeline, which is close to an air inlet, and are tightly connected with each other, a supporting piece can be connected to the inner wall of the air inlet pipeline, which is close to the airflow weakening pieces, the supporting piece is of a hollow structure, a mounting cavity is formed in one side, which is close to the airflow weakening pieces, of the supporting piece, a pneumatic deformation shell is placed in the mounting cavity, one end, which is close to the airflow weakening pieces, of the pneumatic deformation shell is fixedly connected with the outer wall of the mounting cavity through a sealing membrane, pneumatic pieces are fixedly connected to the inner walls of the upper side and the lower side of the pneumatic deformation shell, a silencing cavity is formed in the middle of the supporting piece, one end, which is far away from the airflow weakening pieces, of the pneumatic deformation shell is fixedly connected with the outer wall of, and one end of the silencing cavity, which is far away from the pneumatic deformation shell, is communicated with a plurality of airflow dispersion pipelines. The structure similar to a bird wing is adopted, the aerodynamic principle is utilized to enable two pneumatic parts to be close to each other under the action of air flow, so that the section area of a pneumatic deformable shell is changed, the front section area and the rear section area are greatly changed suddenly, the noise reduction effect is improved, the larger the air flow strength is, the larger the change of the section area of the pneumatic deformable shell is, the better the noise reduction effect is, the air flow speed is reduced by utilizing an annular cavity channel inside the pneumatic reduction part, the air flow can form convection through two air inlet holes and one air outlet hole, a certain noise reduction effect is achieved, the air flow speed is further reduced by utilizing a porous air flow disturbance ball, finally the air flow is sprayed out through air flow dispersion pipelines with different inner diameters, the sudden change of the section area is utilized again to reduce noise, the noise reduction effect is further improved, compared with the prior art, the dynamic change of the section area is realized, the effect of reducing noise by utilizing the sudden change of the cross-sectional area is enhanced.
Furthermore, the airflow weakening piece comprises a disc, the disc is of a hollow structure, a cavity channel is formed in the disc, two air inlet holes are formed in one side, away from the supporting piece, of the cavity channel, air outlet holes are formed in one side, close to the supporting piece, of the cavity channel, airflow enters the cavity channel through the air inlet holes, a part of the airflow is directly sprayed out of the air outlet holes, a part of the airflow circularly flows in the cavity channel, a small part of the airflow is sprayed out of the cavity channel in the circulating flow process and forms convection with the incoming airflow, and therefore the flow rate of the airflow is weakened, and the purpose of noise reduction is achieved.
Furthermore, a plurality of flow suction plates are fixedly connected to the inner wall of the cavity, the flow suction plates are sponges with porous structures, and holes of the flow suction plates can retain part of air flow, play a role in disturbing flow and strengthen the effect of weakening the flow rate of the air flow.
Further, the disc is close to support piece's lateral wall fixedly connected with guide plate, and guide plate and venthole intercommunication, the shape of guide plate is the horn mouth form, and the guide plate plays the effect of stationary flow, lets from the steady blowing of venthole spun air current to the pneumatic deformation shell.
Further, the pneumatic deformation shell includes two upper and lower support casings, two fixedly connected with flexible body between the support casing, flexible body adopts the flexible material of elasticity, and flexible body can stretch out and draw back from top to bottom, and when two pneumatic parts were close to each other or kept away from under the effect of air current, pneumatic part drove the flexible change of flexible body to change the cross sectional area between two support casings, the structure and the flexible pipe of flexible body are similar.
Furthermore, the opening has all been seted up to the both sides of the flexible body, the outside intercommunication of opening and support piece is passed through to the one end of the flexible body, and the other end of the flexible body passes through opening and amortization chamber intercommunication.
Furthermore, airflow disturbance ball is including the installation pole, it has a plurality of spheroids to establish ties on the installation pole, the spheroid is porous structure, and after the air current entered into the amortization chamber, when the air current blown the spheroid, the velocity of flow of air current can be weakened to spheroidal porous structure to reduce the air current from air current dispersion pipeline spun speed, improve the noise reduction effect.
Further, airflow dispersion pipeline includes the trunk line, the both sides of trunk line all communicate there are a plurality of dispersion pipelines, and dispersion pipeline runs through to support piece's outside, and dispersion pipeline's internal diameter is far less than the internal diameter of trunk line, and dispersion pipeline is inside to have the bend moreover, and the sudden change and the return bend that utilize cross sectional area again fall the noise, further improve the noise reduction effect.
The use method of the small air compressor for environmental protection construction comprises the following steps:
s1, when the air compressor is used, the air inlet pipeline is arranged at the air inlet of the air compressor, air enters from the air inlet of the air inlet pipeline and enters the cavity channel from the air inlet hole when passing through the air flow weakening piece, a part of air flow is sprayed out from the air outlet hole, a part of air flow circularly flows in the cavity channel, and a small part of air flow is sprayed out from any air inlet hole to form convection, so that the aim of weakening the air flow strength is fulfilled, and the noise is reduced;
s2, blowing the airflow from the airflow weakening part to the pneumatic parts in the pneumatic deformation shell, enabling the two pneumatic parts to approach each other according to the airflow dynamics, reducing the passage of the pneumatic deformation shell, and reducing the noise by using the principle that the sectional area of the silencer is suddenly changed according to the noise reduction principle, wherein the sectional area of the pneumatic deformation shell is reduced, and the interface area of the silencing cavity is unchanged, so that the noise reduction effect is greatly improved;
s3, the flow velocity of the airflow is further weakened by the porous structure of the mounting rod, a part of the airflow is sprayed out from the main pipeline, a part of the airflow is sprayed out from the dispersing pipeline, and the noise is further reduced by changing the cross-sectional area once when the main airflow enters the dispersing pipeline.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the device adopts a structure similar to a bird wing, and utilizes the principle of aerodynamics to lead two pneumatic parts to be close to each other under the action of air flow, thereby changing the section area of a pneumatic deformation shell, leading the front and the rear section areas to have large abrupt changes, improving the noise reduction effect, leading the air flow strength to be larger, leading the section area change of the pneumatic deformation shell to be larger, leading the noise reduction effect to be better, utilizing an annular cavity channel inside the pneumatic weakening part to weaken the air flow velocity, leading two air inlet holes and one air outlet hole to lead the air flow to form convection, playing a certain noise reduction effect, utilizing a porous air flow disturbing ball to further weaken the air flow velocity, leading the air flow to be sprayed out through air flow dispersing pipelines with different inner diameters, utilizing the abrupt changes of the section areas again to reduce the noise, further improving the noise reduction effect, compared with the prior art, realizing the dynamic change of the section area, the effect of reducing noise by utilizing the sudden change of the cross-sectional area is enhanced.
(2) The airflow weakening part comprises a disc, the disc is of a hollow structure, a cavity channel is formed in the disc, two air inlet holes are formed in one side, away from the supporting piece, of the cavity channel, air outlet holes are formed in one side, close to the supporting piece, of the cavity channel, airflow enters the cavity channel from the air inlet holes, a part of the airflow is directly sprayed out of the air outlet holes, a part of the airflow circularly flows in the cavity channel, a small part of the airflow is sprayed out of the cavity channel in the circulating flowing process and forms convection with the incoming airflow, and therefore the flow speed of the airflow is weakened, and the purpose of noise reduction is achieved.
(3) The inner wall of the cavity is fixedly connected with a plurality of flow suction plates, the flow suction plates are spongy bodies with porous structures, and holes of the flow suction plates can retain part of air flow, play a role in disturbing flow and strengthen the effect of weakening the flow velocity of the air flow.
(4) The disc is close to support piece's lateral wall fixedly connected with guide plate, and guide plate and venthole intercommunication, and the shape of guide plate is the horn mouth form, and the guide plate plays the effect of stationary flow, lets from the steady blowing of venthole spun air current to the pneumatic deformation shell.
(5) The pneumatic deformation shell comprises an upper support shell and a lower support shell, a telescopic body is fixedly connected between the two support shells, the telescopic body is made of elastic telescopic materials and can stretch up and down, and when two pneumatic parts are close to or far away from each other under the action of air flow, the pneumatic parts drive the telescopic body to stretch and change, so that the section area between the two support shells is changed, and the structure of the telescopic body is similar to that of a telescopic pipe.
(6) The opening has all been seted up to the both sides of the flexible body, and the outside intercommunication of opening and support piece is passed through to the one end of the flexible body, and the other end of the flexible body passes through opening and amortization chamber intercommunication.
(7) The airflow disturbance ball comprises an installation rod, a plurality of balls are connected in series on the installation rod, the balls are of a porous structure, after airflow enters the silencing cavity, when the airflow blows the balls, the flow velocity of the airflow can be weakened by the porous structure of the balls, and therefore the speed of the airflow from the airflow dispersion pipeline is reduced, and the noise reduction effect is improved.
(8) Airflow dispersion pipeline includes the trunk line, and the both sides of trunk line all communicate has a plurality of dispersion pipelines, and dispersion pipeline runs through to support piece's outside, and dispersion pipeline's internal diameter is far less than the internal diameter of trunk line, and dispersion pipeline is inside to have the bend moreover, and the sudden change and the return bend that utilize cross sectional area again fall the noise, further improve the noise reduction effect.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic diagram of the pneumatic deformable shell before expansion and contraction;
FIG. 3 is a schematic diagram of the structure of the pneumatic deformable shell after expansion and contraction;
FIG. 4 is a cross-sectional view of the air flow weakening device of the present invention;
FIG. 5 is a schematic cross-sectional view of a pneumatically deformable shell of the present invention;
fig. 6 is a working principle diagram of the pneumatic member of the present invention.
The reference numbers in the figures illustrate:
the device comprises an air inlet pipeline 1, an air flow weakening piece 2, a 201 disc, a 202 cavity channel, a 2021 flow suction plate, an 203 air inlet hole, a 204 air outlet hole, a 3 supporting piece, a 4 mounting cavity, a 5 pneumatic deformation shell, a 501 supporting shell, a 502 telescopic body, a 6 pneumatic piece, a 7 sound attenuation cavity, an 8 air flow disturbance ball, an 801 mounting rod, an 802 ball body, a 9 air flow dispersion pipeline, a 901 main pipeline, a 902 dispersion pipeline and a 10 flow guide plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope 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. 1-6, a small air compressor for environmental protection construction includes an air inlet duct 1, referring to fig. 1 and 4, the inner wall of the air inlet duct 1 near the air inlet is fixedly connected with a plurality of air flow weakenings 2, and the plurality of air flow weakenings 2 are tightly connected, the air flow weakenings 2 include a disc 201, the disc 201 is a hollow structure, a cavity 202 is formed inside the disc 201, the inner wall of the cavity 202 is fixedly connected with a plurality of suction plates 2021, and the suction plates 2021 are sponge bodies with a porous structure, the holes of the suction plates 2021 can retain a part of air flow to play a role of weakening the air flow rate, two air inlets 203 are formed on one side of the cavity 202 far from the support 3, and an air outlet 204 is formed on one side of the cavity 202 near the support 3, the air flow enters the cavity 202 through the air inlets 203, and a part of the air flow is directly ejected through the air outlet 204, a part of air flow circularly flows in the cavity channel 202, a small part of air flow is sprayed out from the cavity channel 202 in the circulating flow process and forms convection with the incoming air flow, so that the flow velocity of the air flow is weakened, and the purpose of noise reduction is achieved;
referring to fig. 2-3, the inner wall of the air inlet pipe 1 close to the airflow weakening part 2 can be connected with a support 3, the support 3 is of a hollow structure, one side of the support 3 close to the airflow weakening part 2 is provided with an installation cavity 4, and a pneumatic deformation shell 5 is arranged in the installation cavity 4, referring to fig. 5-6, the pneumatic deformation shell 5 comprises an upper support shell 501 and a lower support shell 501, a telescopic body 502 is fixedly connected between the two support shells 501, both sides of the telescopic body 502 are provided with openings, one end of the telescopic body 502 is communicated with the outside of the support 3 through the opening, the other end of the telescopic body 502 is communicated with a silencing cavity 7 through the opening, the telescopic body 502 is made of an elastic telescopic material, the telescopic body 502 can be stretched up and down, when the two pneumatic parts 6 are close to or far away from each other under the action of the airflow, the pneumatic part 6 drives the telescopic body 502 to be stretched and, the structure of the telescopic body 502 is similar to that of a telescopic pipe, one end of the pneumatic deformation shell 5, which is close to the airflow weakening piece 2, is fixedly connected with the outer wall of the mounting cavity 4 through a sealing film, the inner walls of the upper side and the lower side of the pneumatic deformation shell 5 are fixedly connected with pneumatic pieces 6, the middle part of the support piece 3 is provided with a silencing cavity 7, and one end of the pneumatic deformation shell 5, which is far away from the airflow weakening piece 2, is fixedly connected with the outer wall of the silencing cavity 7 through the sealing film;
referring to fig. 2-3, an air flow disturbing ball 8 is fixedly connected to an inner wall of the muffling cavity 7, the air flow disturbing ball 8 includes a mounting rod 801, a plurality of spheres 802 are connected in series to the mounting rod 801, the spheres 802 are porous structures, when an air flow blows over the spheres 802 after entering the muffling cavity 7, the porous structures of the spheres 802 can weaken a flow velocity of the air flow, thereby reducing a speed of the air flow sprayed from the air flow dispersing pipe 9, and improving a noise reduction effect, one end of the muffling cavity 7 away from the pneumatic deformable shell 5 is communicated with a plurality of air flow dispersing pipes 9, the air flow dispersing pipe 9 includes a main pipe 901, both sides of the main pipe 901 are communicated with a plurality of dispersing pipes 902, the dispersing pipes 902 penetrate through an outer portion of the support 3, an inner diameter of the dispersing pipes 902 is far smaller than an inner diameter of the main pipe 901, and a bend is formed inside the dispersing pipes 902, and noise reduction is performed, further improving the noise reduction effect.
The method comprises the following steps:
s1, when the air compressor is used, the air inlet pipeline 1 is installed at an air inlet of the air compressor, air enters from the air inlet of the air inlet pipeline 1, enters the cavity channel 202 from the air inlet hole 203 when passing through the air flow weakening piece 2, a part of air flow is sprayed out from the air outlet hole 204, a part of air flow circularly flows in the cavity channel 202, and a small part of air flow is sprayed out from any one air inlet hole 203 to form convection, so that the aim of weakening the strength of the air flow is fulfilled, and the noise is reduced;
s2, blowing the airflow from the airflow weakening part 2 to the pneumatic parts 6 in the pneumatic deformation shell 5, enabling the two pneumatic parts 6 to approach each other according to the airflow dynamics, reducing the passage of the pneumatic deformation shell 5, and reducing the noise by utilizing the principle that the sectional area of the silencer is suddenly changed according to the noise reduction principle, wherein the sectional area of the pneumatic deformation shell 5 is reduced, and the interface area of the silencing cavity 7 is unchanged, so that the noise reduction effect is greatly improved;
s3, the flow velocity of the airflow is further weakened by the porous structure of the mounting rod 801, a part of the airflow is sprayed out from the main pipeline 901, a part of the airflow is sprayed out from the dispersing pipeline 902, and the noise is further reduced by changing the cross-sectional area once when the main airflow pipeline 901 enters the dispersing pipeline 902.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the modified concept of the present invention should be covered by the scope of the present invention.
Claims (9)
1. The utility model provides a small-size air compressor machine is used in environmental protection construction, includes admission line (1), its characterized in that: the air inlet pipe is characterized in that a plurality of airflow weakening pieces (2) are fixedly connected to the inner wall, close to an air inlet, of the air inlet pipe (1), the air inlet pipe (1) is tightly connected with the airflow weakening pieces (2), a supporting piece (3) can be connected to the inner wall, close to the airflow weakening pieces (2), of the air inlet pipe, the supporting piece (3) is of a hollow structure, a mounting cavity (4) is formed in one side, close to the airflow weakening pieces (2), of the supporting piece (3), a pneumatic deformation shell (5) is placed in the mounting cavity (4), one end, close to the airflow weakening pieces (2), of the pneumatic deformation shell (5) is fixedly connected with the outer wall of the mounting cavity (4) through a sealing film, pneumatic pieces (6) are fixedly connected to the inner walls on the upper side and the lower side of the pneumatic deformation shell (5), a silencing cavity (7) is formed in the middle of the supporting piece (3), and one end, far away from the airflow weakening pieces (2), of the pneumatic deformation shell (5), is, the inner wall fixedly connected with air current disturbance ball (8) of amortization chamber (7), the one end intercommunication that pneumatic deformation shell (5) were kept away from in amortization chamber (7) has a plurality of air current dispersion pipelines (9).
2. The small air compressor for environmental protection construction according to claim 1, characterized in that: the airflow weakening part (2) comprises a disc (201), the disc (201) is of a hollow structure, a cavity channel (202) is formed in the disc (201), two air inlet holes (203) are formed in one side, away from the supporting part (3), of the cavity channel (202), and an air outlet hole (204) is formed in one side, close to the supporting part (3), of the cavity channel (202).
3. The small air compressor for environmental protection construction according to claim 2, characterized in that: the inner wall of the cavity (202) is fixedly connected with a plurality of flow suction plates (2021), and the flow suction plates (2021) are sponge bodies with porous structures.
4. The small air compressor for environmental protection construction according to claim 2, characterized in that: disc (201) are close to lateral wall fixedly connected with guide plate (10) of support piece (3), and guide plate (10) and venthole (204) intercommunication, the shape of guide plate (10) is the horn mouth form.
5. The small air compressor for environmental protection construction according to claim 1, characterized in that: the pneumatic deformation shell (5) comprises an upper support shell (501) and a lower support shell (501), wherein an expansion body (502) is fixedly connected between the support shells (501), and the expansion body (502) is made of elastic expansion materials.
6. The small air compressor for environmental protection construction according to claim 5, characterized in that: the both sides of the flexible body (502) are all provided with openings, one end of the flexible body (502) is communicated with the outside of the supporting piece (3) through the openings, and the other end of the flexible body (502) is communicated with the sound attenuation cavity (7) through the openings.
7. The small air compressor for environmental protection construction according to claim 1, characterized in that: the airflow disturbance ball (8) comprises a mounting rod (801), a plurality of balls (802) are connected on the mounting rod (801) in series, and the balls (802) are of a porous structure.
8. The small air compressor for environmental protection construction according to claim 1, characterized in that: the airflow dispersion pipeline (9) comprises a main pipeline (901), a plurality of dispersion pipelines (902) are communicated with the two sides of the main pipeline (901), and the dispersion pipelines (902) penetrate through the outer part of the support (3).
9. The use method of the small air compressor for the environmental protection construction according to any one of claims 1 to 8, wherein: the method comprises the following steps:
s1, when the air compressor is used, the air inlet pipeline (1) is installed at an air inlet of the air compressor, air enters from the air inlet of the air inlet pipeline (1), enters the cavity channel (202) through the air inlet holes (203) when passing through the air flow weakening piece (2), a part of air flow is sprayed out from the air outlet holes (204), a part of air flow circularly flows in the cavity channel (202), and a small part of air flow is sprayed out from any one air inlet hole (203) to form convection, so that the purpose of weakening the strength of the air flow is realized, and the noise is reduced;
s2, blowing the airflow from the airflow weakening part (2) to the pneumatic parts (6) in the pneumatic deformation shell (5), enabling the two pneumatic parts (6) to approach each other according to the airflow dynamics, reducing the passage of the pneumatic deformation shell (5), and greatly improving the noise reduction effect due to the fact that the sectional area of the pneumatic deformation shell (5) is reduced and the interface area of the noise reduction cavity (7) is unchanged according to the noise reduction principle of the silencer by utilizing the sudden change of the sectional area;
s3, the flow velocity of the airflow is further weakened by the porous structure of the mounting rod (801), a part of the airflow is sprayed out from the main pipeline (901), a part of the airflow is sprayed out from the dispersing pipeline (902), and the noise is further reduced by changing the cross-sectional area once when the main airflow pipeline (901) enters the dispersing pipeline (902).
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| CN202010845066.6A CN111810383B (en) | 2020-08-20 | 2020-08-20 | Small air compressor for environmental protection construction and use method thereof |
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| US20190234390A1 (en) * | 2018-01-31 | 2019-08-01 | Trane International Inc. | Pressure Pulsation Traps |
| CN210564989U (en) * | 2019-07-24 | 2020-05-19 | 辛集市奥春封头制造有限公司 | Air compressor air inlet mechanism for end socket production |
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