CN116863898A - Silencer component and silencer for small-sized oxygenerator - Google Patents
Silencer component and silencer for small-sized oxygenerator Download PDFInfo
- Publication number
- CN116863898A CN116863898A CN202310873142.8A CN202310873142A CN116863898A CN 116863898 A CN116863898 A CN 116863898A CN 202310873142 A CN202310873142 A CN 202310873142A CN 116863898 A CN116863898 A CN 116863898A
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- Prior art keywords
- tube
- silencer
- inner tube
- small
- double
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000003584 silencer Effects 0.000 title claims abstract description 76
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 25
- 239000001301 oxygen Substances 0.000 claims description 25
- 229910052760 oxygen Inorganic materials 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 9
- 230000001743 silencing effect Effects 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000030279 gene silencing Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
-
- 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
- G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0028—Separation of the specific gas from gas mixtures containing a minor amount of this specific gas
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0046—Nitrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Aviation & Aerospace Engineering (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Exhaust Silencers (AREA)
Abstract
The application discloses a silencer component and silencer for a small-sized oxygenerator, which comprises a double-tube expansion silencer and a single-tube silencer, wherein the double-tube expansion silencer comprises an outer tube and an inner tube, the inner tube is arranged in the outer tube, and a closed cavity is arranged between the outer tube and the inner tube in a way of connecting the inner tube and the outer tube at two sides of the pipeline after gas is injected between the inner tube and the outer tube; the application effectively provides a buffering effect through the double-pipe expansion silencer, reduces the pressure of gas, simultaneously converts acoustic energy into internal energy through friction by combining the single-pipe silencer to dissipate, and causes sound waves to destructively interfere in the single pipe, thereby achieving the silencing effect.
Description
Technical Field
The application relates to the field of silencer structures, in particular to a silencer component and a silencer for a small-sized oxygen generator.
Background
The oxygen generator is widely applied in the present life, particularly plays an important role in the fields of medical first aid and rehabilitation and health care, and takes an important role, wherein the small-sized oxygen generator mainly adopts a molecular sieve oxygen generation technology to separate and extract high-purity oxygen from air, and the whole oxygen generation process is a physical adsorption process, has no chemical reaction and has no pollution to the environment, so the small-sized oxygen generator adopting the molecular sieve oxygen generation technology is more and more emphasized, but the noise in the oxygen generation process of the small-sized oxygen generator causes great trouble to users, and the small-sized oxygen generator mainly generates intermittent air outlet with great air outlet quantity, so the air flow speed and the air flow density are high, and huge noise is generated at the moment of air outlet, which is easy to disturb users, particularly for serious illness or elderly users.
In order to solve the problem of the noise of the air outlet of the small-sized oxygenerator, most of the existing oxygenerator adopts an absorption type muffler, the noise is absorbed by utilizing a sound absorption material, the sound absorption material is in a loose and porous structure, sound waves enter pores to cause tiny vibration, and due to friction and viscous resistance, a considerable part of sound energy is absorbed after being converted into heat energy, and the sound absorption material is loose or porous, such as glass wool, foamed plastic, slag wool, felt, asbestos wool, sound absorption bricks, aerated concrete, wood wool boards and the like; there are also microperforated panel mufflers having low-medium frequency broadband muffling performance, small pore diameters capable of improving sound absorption coefficient, and low porosities capable of increasing the width of sound absorption frequency bands.
However, in the existing silencing technology, the resistive silencer has good sound absorption effect on high-frequency and medium-frequency noise, but has poor silencing performance on low-frequency noise, so that the problem of low-frequency noise in a small-sized oxygenerator cannot be effectively solved, in addition, the resistive silencer is easy to block after long-time running, the sound absorption effect is reduced, and the exhaust resistance is increased; the small hole muffler uses small hole diameter and low porosity to increase the volume of the muffler and limit the application scene of the muffler, and the application provides a solution to the problems.
Disclosure of Invention
The application aims to: the application aims to provide a silencer component and a silencer for a small-sized oxygen generator, which can effectively reduce low-frequency noise in the small-sized oxygen generator, have the advantages of the resistance and the resistance silencer, and have good silencing effect on low-frequency to high-frequency noise.
The technical scheme is as follows: the application relates to a silencer component for a small-sized oxygenerator, which comprises a double-tube expansion silencer, wherein the double-tube expansion silencer comprises an outer tube and an inner tube, the inner tube is arranged in the outer tube, a closed cavity is arranged between the outer tube and the inner tube, one end of the inner tube is connected with an intermittent air source generating noise, and the other end of the inner tube is an air outlet.
Preferably, the cross-sectional area of the closed cavity is not larger than the cross-sectional area of the inner tube before the vacuum is not drawn.
Preferably, the wall thickness of the outer tube is larger than that of the inner tube, and the outer tube and the inner tube are both made of flexible and bendable materials.
Preferably, the inner wall of the inner tube is provided with at least one protruding rib, and the ribs extend from one end of the inner tube to the other end and are uniformly distributed on the inner wall of the inner tube.
The silencer for the small-sized oxygenerator comprises a plurality of double-tube expansion silencers and at least one single-tube silencer, wherein the double-tube expansion silencers are detachably connected with each other, and the double-tube expansion silencers are detachably connected with the single-tube silencer;
the double-tube expansion silencer comprises an outer tube and an inner tube, wherein the inner tube is arranged in the outer tube, a closed cavity is formed between the outer tube and the inner tube, one end of the inner tube is connected with an intermittent air source generating noise, the other end of the inner tube is an air outlet, and the inner tube is in a vacuumizing state before primary use;
one end of the inner cavity of the single-pipe silencer is connected with the air outlet of the inner pipe of the double-pipe expansion silencer, the other end of the inner cavity of the single-pipe silencer is connected with the atmosphere, and a plurality of through holes communicated with the outside atmosphere and the inner cavity are formed in the outer wall of the single-pipe silencer.
Preferably, the cross-sectional area of the closed cavity is not larger than the cross-sectional area of the inner tube before the vacuum is not drawn.
Preferably, the wall thickness of the outer tube is larger than that of the inner tube, and the outer tube and the inner tube are both made of flexible and bendable materials.
Preferably, the inner wall of the inner tube is provided with at least one protruding rib, and the ribs extend from one end of the inner tube to the other end and are uniformly distributed on the inner wall of the inner tube.
Preferably, the through holes arranged on the outer wall of the single-tube silencer are distributed at equal intervals along the axial direction of the single-tube silencer and are not less than two rows, and the through holes are in a contracted form of a bell mouth from outside to inside on the outer wall of the single-tube silencer.
Preferably, the minimum aperture of the through hole is not more than 0.5mm.
Working principle: in the application, sealing air is filled between the inner tube and the outer tube of the double-tube expansion silencer, under the non-working state, the inner tube is in a contracted state because the internal pressure is smaller than the external pressure, the closed cavity between the inner tube and the outer tube is in an expanded state, when the double-tube expansion silencer works normally, a high-speed intermittent air flow is injected into the inner tube in the contracted state by an intermittent air source generating noise, sound waves can be reflected and dissipated in a sealing air bag, at the moment, the inner tube rapidly expands, the pressure of the inner tube increases and expands, the closed cavity between the inner tube and the outer tube is compressed, the pressure generated by the high-speed high-pressure air flow entering the inner tube is absorbed, the high-speed high-pressure air flow is gradually decelerated and decompressed after passing through the inner tube, and the pressure transmitted by the outer tube is further absorbed through the outward expansion of the outer tube, so that the high-speed high-pressure air flow is decelerated and decompressed, and finally the air flow generating noise is changed into low-speed low-pressure air flow to flow out of the inner tube, so that the noise is reduced or directly eliminated, and after the air flow is discharged through the single-tube silencer, the pressure in the closed cavity is larger than the pressure inside the inner tube, the inner tube gradually contracts and returns to the initial state, and the whole silencer and the resetting process is completed. The ribs inside the double tube expansion silencer can prevent the inner tube from being extruded to be closed by the gas in the closed cavity and not being ventilated. The double-tube structure can effectively reduce the amplitude of noise. The combination of muscle and airtight cavity can avoid again that the bending of double-barrelled muffler leads to can't ventilate, when needs use a plurality of double-barrelled expansion silencers, can carry out the coiling to settle to the silencer, and the occupation volume of silencer diminishes, and intraductal volume grow, and pressure diminishes when gas passes through, and the amortization effect reinforcing when the silencer carries out the coiling and settles, can produce vortex and vortex when gas through crooked or elbow, further increase energy loss and pressure reduction to further improve the amortization effect.
The single-tube silencer is made of loose porous materials, small holes are densely distributed in the longitudinal circumferential direction, the single tube expands in the gas transmission process, and part of sound energy is converted into elastic potential energy. The inner surface of the single tube is roughened, and a part of the acoustic energy is converted into internal energy by friction with the inner wall of the single tube. At the same time, friction between the gas flowing in the pipe and the inner wall of the pipe causes energy loss and pressure drop. The through holes in the single-tube silencer can enable the entering sound waves to destructively interfere in the single-tube silencer, the design of the horn mouth ensures that the pressure of the discharged air flow is gradually reduced, and noise is further reduced.
The application can adapt to the silencing requirements of various small-sized oxygenerators with different frequencies, flow rates and pressures by combining a plurality of double-tube expansion silencers with at least one single-tube silencer, is limited by the restriction of the internal space of the small-sized oxygenerator, and can be installed in various small-sized oxygenerators to fully utilize the internal space of the small-sized oxygenerator.
The beneficial effects are that:
(1) The application effectively provides a buffering effect through the double-pipe expansion silencer, reduces the speed and the pressure of gas, simultaneously combines the single-pipe silencer to convert sound energy into other forms of energy, and causes sound waves to destructively interfere in the single pipe, thereby achieving the silencing effect;
(2) The combination of the plurality of bendable double-tube expansion silencers can be installed in various small-sized oxygenerators, so that the internal space of the small-sized oxygenerators is fully utilized;
(3) According to the silencing requirements of the small-sized oxygenerator with different frequencies, flow rates and pressures, the application can automatically combine the double-tube expansion silencers and the single-tube silencers, is suitable for scenes with different requirements, and has high expansibility;
(4) The application has simple integral structure, convenient material taking and suitability for large-scale popularization.
Drawings
FIG. 1 is a front cross-sectional view of a dual tube expansion muffler in accordance with the present application;
FIG. 2 is a side cross-sectional view of a dual tube expansion muffler in accordance with the present application;
FIG. 3 is a front cross-sectional view of a single tube muffler according to the present application;
FIG. 4 is a side cross-sectional view of a single tube muffler according to the present application;
fig. 5 is a front view showing a single double pipe expansion silencer and a single pipe silencer according to the present application, which are coupled together.
Wherein: 1. a double-tube expansion muffler; 2. a single tube muffler; 3. an outer tube; 4. an inner tube; 5. sealing the cavity; 6. a rib; 7. and a through hole.
Detailed Description
The application is further illustrated below in conjunction with specific examples.
Embodiment one:
as shown in fig. 1-4, the two-tube expansion silencer 1 and the single-tube silencer 2 are respectively shown in schematic structural views, and in this embodiment, the two-tube expansion silencer 1 and the single-tube silencer 2 are included, one end of the two-tube expansion silencer 1 is connected with an air outlet of an oxygenerator, and the other end is connected with the single-tube silencer 2.
In this embodiment, the dual-tube expansion silencer 1 includes an outer tube 3 and an inner tube 4, the inner tube 4 is disposed inside the outer tube 3, the wall thickness of the outer tube 3 is greater than that of the inner tube 4, and the outer tube 3 and the inner tube 4 are made of flexible and bendable materials.
In this embodiment, a closed cavity 5 is provided between the outer tube 3 and the inner tube 4, and the cross-sectional area of the closed cavity 5 is not larger than the cross-sectional area of the inner tube 4 before the vacuum is not drawn.
In this embodiment, be provided with three convex muscle 6 on the inner wall of inner tube 4, muscle 6 extends to the other end from the one end of inner tube 4 and evenly arranges on the inner wall of inner tube 4, and the setting of muscle 6 can ensure that inner tube 4 can not be taken out to inner tube 4 pipe wall laminating completely when being taken out the vacuum, leads to the unable condition of circulating the air current of inner tube 4.
In this embodiment, the single-tube muffler 2 is detachably connected with the double-tube expansion muffler 1, a plurality of rows of through holes 7 are uniformly provided on the outer wall of the single-tube muffler 2 along the axial direction of the single-tube muffler 2, the through holes 7 are in a flare-shaped contracted form from outside to inside on the outer wall of the single-tube muffler 2, and the minimum inner diameter is 0.5mm.
As shown in fig. 5, when the embodiment works, a closed cavity 5 is arranged between the inner tube 4 and the outer tube 3 of the double-tube expansion silencer 1, one end of the closed cavity 5 is connected to the air outlet of the oxygen generator, the other end of the closed cavity is connected with the single-tube silencer 2, at the moment, the inner tube 4 is in a contracted state because the internal pressure is smaller than the external pressure, the closed cavity 5 between the inner tube 4 and the outer tube 3 is in an expanded state, when the oxygen generator works normally, an intermittent air source generating noise is used for air outlet, high-speed intermittent air flow is injected into the inner tube 4 in the contracted state, at the moment, the inner tube 4 expands rapidly, the closed cavity 5 between the inner tube 4 and the outer tube 3 is compressed, the closed cavity 5 absorbs the pressure generated by the high-speed high-pressure air flow entering the inner tube 4, and further absorbs the transmitted pressure through the outer tube 3, so that the high-speed high-pressure air flow flows into the inner tube 4, and finally the noise-generated air flow becomes low-speed low-pressure air flow and flows out of the inner tube 4 after the high-speed high-pressure flows into the inner tube 4, thereby reducing noise, the air flow flowing out of the inner tube 4 enters the single-tube silencer 2, the noise-reducing silencer 2 is dispersed and slowly, the entering the air flow is discharged through the through a through hole 7 on the outer wall in the outer wall of the silencer 2, the silencer, the noise-reducing device is gradually reduced, the design of the noise-reducing air flow is gradually, the noise-reducing air flow is reduced, and the noise is gradually reduced, and the pressure inside the noise is reduced, after the noise is reduced, and the pressure is reduced, and the noise is reduced and the noise.
Embodiment two:
in this embodiment, including three double-barrelled expansion muffler 1 and a single tube muffler 2, double-barrelled expansion muffler 1 connects gradually, twines inside small-size oxygenerator, and tail end connection has single tube muffler 2, and during operation, the intermittent type air supply that produces noise loops through three double-barrelled expansion muffler 1 amortization back and passes through single tube muffler 2, accomplishes final sound absorbing work.
The foregoing shows and describes the basic principles, principal features and advantages of the present application for a muffler member and muffler for a small oxygen generator. It will be understood by those skilled in the art that the present application is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present application, and are not intended to limit the application, and that various changes and modifications may be made therein without departing from the spirit and scope of the application as claimed. The scope of the application is defined by the appended claims and equivalents thereof.
Claims (10)
1. A muffler component for a small-sized oxygen generator, characterized by: the double-tube expansion silencer comprises an outer tube and an inner tube, wherein the inner tube is arranged inside the outer tube, a closed cavity is formed between the outer tube and the inner tube, one end of the inner tube is connected with an intermittent air source for generating noise, and the other end of the inner tube is an air outlet.
2. A silencer component for a small-sized oxygen generator as claimed in claim 1, wherein: the cross-sectional area of the closed cavity is not larger than the cross-sectional area of the inner tube before vacuum is not pumped.
3. A silencer component for a small-sized oxygen generator as claimed in claim 1, wherein: the wall thickness of the outer tube is larger than that of the inner tube, and the outer tube and the inner tube are both made of flexible bendable materials.
4. A silencer component for a small-sized oxygen generator as claimed in claim 1, wherein: the inner wall of the inner tube is provided with at least one protruding rib, and the ribs extend from one end of the inner tube to the other end and are uniformly distributed on the inner wall of the inner tube.
5. A muffler for a small-sized oxygenerator, characterized by: the double-tube expansion silencer comprises a plurality of double-tube expansion silencers and at least one single-tube silencer, wherein the double-tube expansion silencers are detachably connected, and the double-tube expansion silencers are detachably connected with the single-tube silencers;
the double-tube expansion silencer comprises an outer tube and an inner tube, wherein the inner tube is arranged in the outer tube, a closed cavity is arranged between the outer tube and the inner tube, one end of the inner tube is connected with an intermittent air source generating noise, and the other end of the inner tube is an air outlet;
one end of the inner cavity of the single-pipe silencer is connected with the air outlet of the inner pipe of the double-pipe expansion silencer, the other end of the inner cavity of the single-pipe silencer is connected with the atmosphere, and a plurality of through holes communicated with the outside atmosphere and the inner cavity are formed in the outer wall of the single-pipe silencer.
6. A muffler for a small oxygen generator as defined in claim 5, wherein: the cross-sectional area of the closed cavity is not larger than the cross-sectional area of the inner tube before vacuum is not pumped.
7. A muffler for a small oxygen generator as defined in claim 5, wherein: the wall thickness of the outer tube is larger than that of the inner tube, and the outer tube and the inner tube are both made of flexible bendable materials.
8. A muffler for a small oxygen generator as defined in claim 5, wherein: the inner wall of the inner tube is provided with at least one protruding rib, and the ribs extend from one end of the inner tube to the other end and are uniformly distributed on the inner wall of the inner tube.
9. A muffler for a small oxygen generator as defined in claim 5, wherein: the through holes arranged on the outer wall of the single-tube silencer are distributed at equal intervals along the axial direction of the single-tube silencer and are not less than two rows, and the through holes are in a contracted form of a bell mouth from outside to inside on the outer wall of the single-tube silencer.
10. A muffler for a small oxygen generator as defined in claim 5, wherein: the smallest aperture of the through hole is not more than 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310873142.8A CN116863898A (en) | 2023-07-17 | 2023-07-17 | Silencer component and silencer for small-sized oxygenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310873142.8A CN116863898A (en) | 2023-07-17 | 2023-07-17 | Silencer component and silencer for small-sized oxygenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116863898A true CN116863898A (en) | 2023-10-10 |
Family
ID=88218794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310873142.8A Pending CN116863898A (en) | 2023-07-17 | 2023-07-17 | Silencer component and silencer for small-sized oxygenerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116863898A (en) |
-
2023
- 2023-07-17 CN CN202310873142.8A patent/CN116863898A/en active Pending
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