CN107762802A - A kind of oxygenerator sqouynd absorption lowering noise apparatus and method and the oxygenerator of application - Google Patents
A kind of oxygenerator sqouynd absorption lowering noise apparatus and method and the oxygenerator of application Download PDFInfo
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- CN107762802A CN107762802A CN201711157645.6A CN201711157645A CN107762802A CN 107762802 A CN107762802 A CN 107762802A CN 201711157645 A CN201711157645 A CN 201711157645A CN 107762802 A CN107762802 A CN 107762802A
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- oxygenerator
- blimp
- acoustic board
- sound
- noise
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 43
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 27
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 27
- 238000013459 approach Methods 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 20
- 239000001301 oxygen Substances 0.000 claims description 20
- 229910052760 oxygen Inorganic materials 0.000 claims description 20
- 229920001971 elastomer Polymers 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 7
- 239000002808 molecular sieve Substances 0.000 claims description 7
- 238000004080 punching Methods 0.000 claims description 7
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 4
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- 238000013461 design Methods 0.000 abstract description 7
- 101000687343 Mus musculus PR domain zinc finger protein 1 Proteins 0.000 description 31
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 26
- 229910052757 nitrogen Inorganic materials 0.000 description 13
- 230000033001 locomotion Effects 0.000 description 8
- 230000009467 reduction Effects 0.000 description 8
- 238000007789 sealing Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
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- 238000012546 transfer Methods 0.000 description 4
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- 229920000742 Cotton Polymers 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 241000826860 Trapezium Species 0.000 description 2
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- 238000001179 sorption measurement Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 208000002381 Brain Hypoxia Diseases 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 206010022998 Irritability Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
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Classifications
-
- 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
- F04B39/0033—Pulsation and noise damping means with encapsulations
-
- 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
- C01B13/0262—Physical processing only by adsorption on solids characterised by the adsorbent
-
- 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
- F04B39/121—Casings
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses a kind of oxygenerator sqouynd absorption lowering noise apparatus and method and the oxygenerator of application, belong to oxygenerator field.The oxygenerator sqouynd absorption lowering noise device of the present invention, including blimp, acoustic board is equipped with the inner surface of the side wall of blimp and upper lid, acoustic board is made for any one in aluminum foam acoustic board and polyurethane foam acoustic board or two kinds of combinations, the bottom plate of blimp of aluminum foam acoustic board；The sound lock communicated with blimp cavity is additionally provided with blimp, blower fan is installed on sound lock, the madial wall of sound lock is provided with sound lock acoustic board；It is provided with the cavity of blimp below sound lock and tilts the double-deck microperforated panel of installation.The present invention maximumlly consumes the noise sound wave of each frequency band, and by changing sqouynd absorption lowering noise device Inner structural shape, reduce acoustic standing wave effect by analyzing the difference of oxygenerator noise source frequency come specific aim sqouynd absorption lowering noise；The diffraction approach of noise is effectively blocked and completely cut off simultaneously using sound lock design.
Description
Technical field
The present invention relates to a kind of molecular-sieve oxygen generator, more specifically to a kind of oxygenerator sqouynd absorption lowering noise device and side
Method and the oxygenerator of application.
Background technology
Modern life rhythm is fast, and mental and physical demands is big, and brain is chronically at high-pressure state, easily causes big
Cerebral anoxia, dizzy various malaise symptoms, pregnant woman and respiratory disease patient, the auxiliary therapeutic action of oxygen uptake such as uncomfortable in chest occur is even more
It is particularly significant.Therefore, oxygenerator is also progressed into average family, there is irreplaceable important work for oxygen therapy and oxygen health care
With and vast potential for future development, improve the quality of life of people, health brought for anoxic crowd.
The operation principle of Domestic oxygen erator is to utilize molecular sieve physical absorption and desorption technique.Filling molecule in oxygenerator
Sieve, nitrogen adsorption in air, remaining unabsorbed oxygen can be collected in pressurization, after purified treatment i.e.
As the oxygen of high-purity, so as to reach the effect of oxygen processed.The existing oxygenerator noise of in the market is generally in 50dB or so, the mankind
If be exposed to for a long time in noise circumstance, irritated, irritability can be not only made one, it is also possible to as the inducement of a variety of diseases.Oxygen processed
The problem of machine noise is big is also to influence consumer to buy one of principal element of oxygenerator, so the noise for reducing oxygenerator is to carry
The important content of high Domestic oxygen erator comfort.
When the noise source of oxygenerator is mainly mechanicalness noise caused by air compressor work, nitrogen exhaust valve exhaust
Mechanicalness noise etc. when moving back and forth of noise and air compressor damping spring.The noise reduction schemes of oxygenerator are mainly logical at present
Sealing plus silencing cotton plus the mode such as puigging and muffler are crossed to reduce noise, but because these methods are for different frequency
Noise does not have specific aim, therefore noise reduction is extremely limited.In order to reduce influence of the oxygenerator noise to patient, many oxygenerators
Producer is that oxygenerator is equipped with longer ventilation channel, by the way that oxygenerator is placed at a distance to reduce noise effect, but because of pipeline
Complicated, distance, cause energy consumption of compressor loss very big, reduce the operating efficiency of oxygenerator, and can not be from basic
The upper noise problem for solving oxygenerator.
For a long time, the noise problem of oxygenerator is always to perplex the problem of technical staff.In order to solve oxygenerator
Noise problem, also there are many researchers to propose many oxygenerator improvement projects.Such as China Patent No.
ZL201620346381.3, authorized announcement date are September in 2016 14, and invention and created name is：One kind is used for oxygenerator and compressed
The sealing structure of box body, this application case are related to a kind of sealing structure for oxygenerator compressor box, and its seal case is adopted
Completely cut off noise transmission with the vacuum chamber inside double casing, shaken using caused by the work of cushion socket fall-off compression machine, and
Seal case surface and outlet expansion section inwall set acoustical cotton to reduce noise energy.This application case can be to a certain extent
The noise of oxygenerator is reduced, but its double-layer vacuum shell mechanism is complicated, and manufacture difficulty is big, and cost is high；Seal case surface is set
Acoustical cotton it is also bad for the sound-absorbing effect of the noise of different frequency, therefore the noise problem of oxygenerator does not obtain still very
Solve well.
And for example Chinese Patent Application No. 201511014179.7, data of publication of application are on June 8th, 2016, innovation and creation name
Referred to as：A kind of oxygenerator and noise-reducing method with noise reduction sound function, this application case install one at the top of the movement of oxygenerator
Noise monitor, installs a loudspeaker in oxygen generator shell, the generation directions of loudspeaker be to movement sounding, by noise monitor,
Loudspeaker are connected with carrying the master control borad of inverting amplifier on movement respectively, pass the movement noise signal that noise monitor detects
It is defeated to arrive master control borad, master control borad by signal amplification and it is anti-phase after send loudspeaker to movement direction sounding.It passes through noise monitor
By the noise source signal detected be transferred to master control borad inverting amplifier be amplified with it is anti-phase after, it is anti-phase to make an uproar after amplification
Source of sound driving loudspeaker send the noise with noise source opposite in phase, so as to carry out offset with noise source, realize noise-reducing purpose.But
It is in this application case, anti-phase noise source to be added in order to reduce movement noise, adds structural complexity, circuit control is set
Meter is complicated, improves the cost of oxygenerator；And it is only capable of offsetting the mechanicalness noise of movement, and for nitrogen discharge etc.
Other noises can not specific aim realize effective noise reduction.
The content of the invention
1. invention technical problems to be solved
It is an object of the invention to overcome existing oxygenerator noise reduction schemes to exist, method for noise reduction control is single, noise reduction is poor
The deficiencies of, there is provided a kind of oxygenerator sqouynd absorption lowering noise apparatus and method and the oxygenerator of application, using technical scheme, lead to
The difference for crossing analysis oxygenerator noise source frequency carrys out specific aim progress sqouynd absorption lowering noise, maximumlly consumes making an uproar for each frequency band
Speech ripple, and by changing the sqouynd absorption lowering noise device Inner structural shape, reduce acoustic standing wave effect, effectively facilitated noise
Consumption；The noise sent simultaneously for oxygenerator air inlet, effectively blocked using sound lock design and completely cut off spreading out for noise
Penetrate approach；Have the characteristics that scientific and reasonable for structure, compact in design, sqouynd absorption lowering noise effect protrude so that the noise problem of oxygenerator
Very good control is obtained.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the invention is：
A kind of oxygenerator sqouynd absorption lowering noise device of the present invention, include the blimp of internal installation air compressor, it is described
Acoustic board is equipped with the inner surface of the side wall of blimp and upper lid, described acoustic board is aluminum foam acoustic board and polyurethane foam
The combination of any one or two kinds in foam acoustic board, the bottom plate of described blimp are made of aluminum foam acoustic board；Described
The sound lock communicated with blimp cavity is additionally provided with blimp, blower fan is installed on described sound lock, set on the madial wall of sound lock
There is sound lock acoustic board；The double-deck microperforated panel being provided with the cavity of described blimp below sound lock, described is double-deck micro-
Perforated plate is in the tilted installation of blimp.
Further, described bottom plate is provided with the exhaust passage that multiple tracks is obliquely installed.
Further, the side wall of described blimp is surrounded by side wallboard, and between side wallboard, upper cover and bottom plate
It is connected by fastening bolt with rubber washer；Described sound lock is connected with blimp by fastening bolt, and sound lock and sound insulation
Rubber seal is additionally provided between cover.
Further, trapezoidal, the described sound lock acoustic board that is shaped as of described sound lock is aluminum foam acoustic board or micro-
Perforated acoustic board, the sound lock acoustic board are installed on the madial wall of sound lock by connecting pole every sky；A pair of described blimp
The acoustic board set on relative side wall is polyurethane foam acoustic board, and the acoustic board set on the relative side wall of another pair is aluminium
Foam sound absorbing board, the acoustic board set on the upper lid of described blimp is polyurethane foam acoustic board.
Further, the sound absorption face of described polyurethane foam acoustic board is pyramid or waveform or wedge shape, is gathered
Urethane foam sound absorbing board is pasted onto in blimp, and the thickness of polyurethane foam acoustic board is less than or equal to 25mm；Described aluminium
Foam sound absorbing board is installed in blimp by connecting pole every sky, and the thickness of aluminum foam acoustic board is less than or equal to 10mm, aluminium
Foam sound absorbing board is less than or equal to 5mm every empty thickness.
Further, described double-deck microperforated panel includes the first microperforated panel and the second microperforated panel, and described
Connect to form air layer by connecting pole between one microperforated panel and the second microperforated panel.
Further, the area of described double-deck microperforated panel is the 40% of coverage, and double-deck microperforated panel inclines
Rake angle is less than or equal to 85 °.
Further, the first described microperforated panel and the second microperforated panel are less than or equal to 1mm's using thickness
Metallic plate punching is made, and punching aperture is less than or equal to 1mm, and perforated area is 1%~5%；Described the first microperforated panel and
Air layer thickness between second microperforated panel is less than or equal to 5mm.
A kind of oxygenerator using above-mentioned oxygenerator sqouynd absorption lowering noise device of the present invention, the air compressor of the oxygenerator
It is installed on the bottom plate of blimp, breather filter matching used with air compressor, reversal valve is additionally provided with blimp
And molecular sieve.
A kind of oxygenerator sqouynd absorption lowering noise method of the present invention, according to oxygenerator noise source frequency, in oxygenerator blimp
Wall is provided for consuming the acoustic board of medium-high frequency noise, and the acoustic board is used in aluminum foam acoustic board and polyurethane foam acoustic board
The combination of any one or two kinds, be provided for the double-deck of low frequency noise in consumption and micro- wear oxygenerator blimp cavity is tilted
Orifice plate, to change blimp internal structure to reduce the standing wave phenomena of acoustic energy；And use is set in the air inlet of oxygenerator
In the sound lock of consumption air inlet diffraction acoustic energy, to block the diffraction approach with noise insulation.
3. beneficial effect
Using technical scheme provided by the invention, compared with existing known technology, there is following remarkable result：
(1) a kind of oxygenerator sqouynd absorption lowering noise apparatus and method of the invention, it is in the side wall of blimp and the interior table of upper lid
Acoustic board is equipped with face, acoustic board is any one or two kinds of groups in aluminum foam acoustic board and polyurethane foam acoustic board
Close, the bottom plate of blimp is made of aluminum foam acoustic board；The sound lock communicated with blimp cavity, sound lock are additionally provided with blimp
On blower fan is installed, the madial wall of sound lock is provided with sound lock acoustic board；And it is provided with the cavity of blimp below sound lock
Double-deck microperforated panel, double-deck microperforated panel is in the tilted installation of blimp；By the difference for analyzing oxygenerator noise source frequency
Carry out specific aim and carry out sqouynd absorption lowering noise, maximumlly consume the noise sound wave of each frequency band, and fill by changing sqouynd absorption lowering noise
Inner structural shape is put, reduces acoustic standing wave effect, has effectively facilitated noise consumption；It is directed to oxygenerator air inlet simultaneously
The noise sent, the diffraction approach of noise is effectively blocked and completely cut off using sound lock design；With scientific and reasonable for structure, layout tightly
Gather, sqouynd absorption lowering noise effect protrude the features such as so that the noise problem of oxygenerator has obtained very good control；
(2) a kind of oxygenerator sqouynd absorption lowering noise device of the invention, its bottom plate are provided with the exhaust passage that multiple tracks is obliquely installed,
The exhaust passage being obliquely installed increases absorption area, adds acoustically effective, effectively consumes the sound by exhaust outlet diffraction
Ripple；Can be big meanwhile bottom plate made of aluminum foam acoustic board is the excellence conductor of heat transfer, while the discharge waste gas such as nitrogen
The heat transfer of amount is gone out, to prevent air compressor from reducing actual power because temperature is too high；
(3) a kind of oxygenerator sqouynd absorption lowering noise device of the invention, the side wall of its blimp is surrounded by side wallboard, and side
It is connected between wallboard, upper cover and bottom plate by fastening bolt with rubber washer, sound lock is connected with blimp by fastening bolt,
And rubber seal is additionally provided between sound lock and blimp；Rubber washer and rubber are equipped with each connecting portion of blimp
Sealing ring, sealing function can be not only played, prevent the slit source sound of sound wave diffraction, shape can also be prevented by damping action
Into " overhead speaker "；
(4) a kind of oxygenerator sqouynd absorption lowering noise device of the invention, being shaped as its sound lock is trapezoidal, and the sound lock of trapezium structure has
Acoustic standing wave effect caused by effect eliminates parallel cover wall；Sound lock acoustic board is aluminum foam acoustic board or Micropunch Acoustic Board, is somebody's turn to do
Sound lock acoustic board is installed on the madial wall of sound lock by connecting pole every sky, is disappeared using aluminum foam acoustic board or Micropunch Acoustic Board
Consumption acoustic energy simultaneously blocks the diffraction approach of sound wave；
(5) a kind of oxygenerator sqouynd absorption lowering noise device of the invention, the suction set on a pair of relative side walls of its blimp
Sound plate is polyurethane foam acoustic board, and the acoustic board set on the relative side wall of another pair is aluminum foam acoustic board, blimp
The acoustic board set on upper lid is polyurethane foam acoustic board；The sound absorption face of polyurethane foam acoustic board is pyramid or wave
Shape or wedge shape, wedge absorber is formed, can effectively absorb high-frequency noises；Aluminum foam acoustic board has a large amount of inside and outside connections
Slight void and hole, when on sound wave incident to porous material, sound wave can enter material internal along micropore, cause space hollow
The vibration of gas, friction and conduction of heat due to the viscous resistance of air, air and hole wall etc., turn quite a few acoustic energy
Turn to and be depleted for heat energy；
(6) a kind of oxygenerator sqouynd absorption lowering noise device of the invention, its double-deck microperforated panel include the first microperforated panel and the
Two microperforated panels, connect to form air layer by connecting pole between the first microperforated panel and the second microperforated panel, by double-deck micro-
The installation of perforated plate forms air inlet sound absorption passage, sound absorption and the diffraction approach for blocking sound wave；Sound wave by when, air column in aperture
Reciprocating motion causes the sound energy consumption that rubs；
(7) a kind of oxygenerator using sqouynd absorption lowering noise device of the invention, significantly reduces noise caused by oxygenerator,
Oxygenerator peace and quiet are run, meet the use demand of patient, improve the comfort of Domestic oxygen erator.
Brief description of the drawings
Fig. 1 is a kind of structural representation of oxygenerator sqouynd absorption lowering noise device of the present invention；
Fig. 2 is the structural representation of sound lock in a kind of oxygenerator sqouynd absorption lowering noise device of the invention；
Fig. 3 is the structural representation of double-deck microperforated panel in a kind of oxygenerator sqouynd absorption lowering noise device of the invention；
Fig. 4 is the structure of the first microperforated panel and the second microperforated panel in a kind of oxygenerator sqouynd absorption lowering noise device of the invention
Schematic diagram；
Fig. 5 is a kind of structural representation of oxygenerator sqouynd absorption lowering noise device bottom plate of the present invention；
Fig. 6 is the present invention looks up structural representation above covered in a kind of oxygenerator sqouynd absorption lowering noise device of the present invention；
Fig. 7 is the side structure schematic diagram above covered in a kind of oxygenerator sqouynd absorption lowering noise device of the present invention；
Fig. 8 is the mounting structure signal of polyurethane foam acoustic board in a kind of oxygenerator sqouynd absorption lowering noise device of the invention
Figure；
Fig. 9 is the mounting structure schematic diagram of aluminum foam acoustic board in a kind of oxygenerator sqouynd absorption lowering noise device of the invention.
Label declaration in schematic diagram：
1st, blimp；2nd, bottom plate；2-1, exhaust passage；2-2, mounting hole；3rd, upper lid；3-1, air inlet；3-2, enter
Air cleaner air inlet；3-3, reversal valve nitrogen exhaust outlet；4th, sound lock；5th, sound lock acoustic board；6th, blower fan；7th, double-deck micropunch
Plate；7-1, the first microperforated panel；7-2, the second microperforated panel；7-3, air layer；7-4, mounting seat；8th, aluminum foam acoustic board；9、
Polyurethane foam acoustic board；10th, breather filter；11st, air compressor；113rd, rubber seal 2, fastening bolt；.
Embodiment
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
With reference to shown in Fig. 1, a kind of oxygenerator sqouynd absorption lowering noise device of the present embodiment, including internal installation air compressor 11
Blimp 1, the side wall of blimp 1 and upper lid 3 be made up of metallic plates such as galvanized sheet, steel plates, the side wall of blimp 1 and upper lid 3
Inner surface on be equipped with acoustic board, acoustic board can use any one in aluminum foam acoustic board 8 and polyurethane foam acoustic board 9
Kind or two kinds of combinations, for consuming caused high-frequency noises acoustic energy in oxygenerator work, and are blocked to the diffraction of noise
And sound insulation.The bottom plate 2 of blimp 1 is made of aluminum foam acoustic board, as shown in figure 5, bottom plate 2 is provided with what multiple tracks was obliquely installed
Exhaust passage 2-1 and the mounting hole 2-2 for installing air compressor 11, the exhaust passage 2-1 being obliquely installed increase sound absorption
Area, acoustically effective is added, effectively consumes the sound wave by exhaust outlet diffraction；Meanwhile bottom made of aluminum foam acoustic board
Plate 2 is the excellence conductor of heat transfer, substantial amounts of heat transfer can be gone out while discharging the waste gas such as nitrogen, to prevent air pressure
Contracting machine reduces actual power because temperature is too high.As depicted in figs. 1 and 2, it is additionally provided with blimp 1 and is communicated with the cavity of blimp 1
Sound lock 4, blower fan 6 is installed on sound lock 4, the 6 preferred axial flow blower of blower fan, the madial wall of sound lock 4 is provided with sound lock acoustic board
5, for blocking the diffraction approach with noise insulation；In the present embodiment, sound lock 4 is shaped as trapezoidal, the sound lock 4 of trapezium structure
Acoustic standing wave effect caused by effectively eliminating parallel cover wall；Sound lock acoustic board 5 is absorbed sound using aluminum foam acoustic board or micropunch
Plate, the sound lock acoustic board 5 is installed on the madial wall of sound lock 4 by connecting pole every sky, in sound lock acoustic board 5 and sound lock 4
Air layer, the preferred copper post of above-mentioned connecting pole are formed between side wall, the thickness of air layer is less than or equal to 5mm, sound lock acoustic board 5
Thickness be less than or equal to 10mm, above-mentioned Micropunch Acoustic Board can use metallic plate punching be made, and utilize aluminum foam acoustic board
Or Micropunch Acoustic Board as the sound energy consumption of sound lock acoustic board 5 and blocks the diffraction approach of sound wave.It is provided with the cavity of blimp 1
Double-deck microperforated panel 7 positioned at the lower section of sound lock 4, double-deck microperforated panel 7 are mainly used in consumption in 1 tilted installation of blimp
Low-frequency noise；As shown in figure 3, double-deck microperforated panel 7 includes the first microperforated panel 7-1 and the second microperforated panel 7-2, first micro- wears
Connect to form air layer 7-3 by connecting pole between orifice plate 7-1 and the second microperforated panel 7-2, connecting pole is also copper post, double-deck micro-
Perforated plate 7 changes sqouynd absorption lowering noise device Inner structural shape, reduces acoustic standing wave effect, has effectively facilitated noise consumption.
In the present embodiment, the area of double-deck microperforated panel 7 is the 40% of the upper area of lid 3, and the angle of inclination of double-deck microperforated panel 7 is less than
Or equal to 85 °, double-deck microperforated panel 7 is fixed in blimp 1 by mounting seat 7-4；Also, as shown in figure 4, the first micropunch
Plate 7-1 and the second microperforated panel 7-2 using thickness less than or equal to 1mm metallic plate punching be made, punching aperture be less than or
Equal to 1mm, perforated area is 1%~5%；Air layer 7-3 between first microperforated panel 7-1 and the second microperforated panel 7-2 is thick
Degree is less than or equal to 5mm；Air inlet sound absorption passage, sound absorption and the diffraction for blocking sound wave are formed by the installation of double-deck microperforated panel 7
Approach, sound wave by when, air column, which moves back and forth, in aperture causes the sound energy consumption that rubs；Also, double-deck microperforated panel 7 also with every
The upper lid 3 and side wall of sound cover 1 form inlet channel, reduce noise and pass through the external diffraction of inlet channel.
Shown in hookup 1, in the present embodiment, the side wall of blimp 1 is surrounded by side wallboard, and side wallboard, upper lid 3
It is connected between bottom plate 2 by fastening bolt 12 with rubber washer；Sound lock 4 is connected with blimp 1 by fastening bolt 12, and
Rubber seal 13 is additionally provided between sound lock 4 and blimp 1.Each connecting portion of blimp 1 be equipped with rubber washer and
Rubber seal 13, can not only play sealing function, prevent the slit source sound of sound wave diffraction, can also by damping action,
Prevent from being formed " overhead speaker ".In addition, in the present embodiment, the acoustic board set on a pair of relative side walls of blimp 1 is poly- ammonia
Ester foam sound absorbing board 9, the acoustic board set on the relative side wall of another pair are aluminum foam acoustic board 8, on the upper lid 3 of blimp 1
The acoustic board of setting is polyurethane foam acoustic board 9；The sound absorption face of polyurethane foam acoustic board 9 is pyramid (such as Fig. 8 institutes
Show) or waveform (as shown in Figure 7) or wedge shape, polyurethane foam acoustic board 9 be pasted onto in blimp 1, and polyurethane foam is inhaled
The thickness of sound plate 9 is less than or equal to 25mm, can form wedge absorber, can effectively absorb the air compressor and bullet of oxygenerator
High-frequency noises caused by spring；Aluminum foam acoustic board 8 is installed in blimp 1 (as shown in Figure 9) by connecting pole every sky, and aluminium
The thickness of foam sound absorbing board 8 is less than or equal to 10mm, and aluminum foam acoustic board 8 is less than or equal to 5mm, connecting pole every empty thickness
Using copper post, aluminum foam acoustic board 8 has the slight void and hole of a large amount of inside and outside connections, when sound wave incident to porous material
On, sound wave can enter material internal along micropore, cause the vibration of air in space, due to the viscous resistance of air, air with
The friction of hole wall and conduction of heat etc., it is converted into quite a few acoustic energy and is depleted for heat energy.
A kind of oxygenerator sqouynd absorption lowering noise device of the present embodiment, is directed to by analyzing the difference of oxygenerator noise source frequency
Property carry out sqouynd absorption lowering noise, maximumlly consume the noise sound wave of each frequency band, and by change sqouynd absorption lowering noise device every
Sound cover Inner structural shape, reduces acoustic standing wave effect, has effectively facilitated noise consumption；It is directed to oxygenerator blower fan air intake simultaneously
The noise that mouth is sent, the diffraction approach of noise is effectively blocked and completely cut off using sound lock design；With scientific and reasonable for structure, layout
The features such as compact, sqouynd absorption lowering noise effect protrudes so that the noise problem of oxygenerator has obtained very good control.
Embodiment 2
As shown in figure 1, a kind of oxygenerator of the present embodiment, it applies the oxygenerator sqouynd absorption lowering noise dress of above-described embodiment 1
Put.In the present embodiment, the air compressor 11 of oxygenerator is installed on the bottom plate 2 of blimp 1, and bottom plate 2 is provided with four admittedly
Determine the mounting hole 2-2 (as shown in Figure 5) of the spring pin of air compressor 11.It is additionally provided with blimp 1 and matches somebody with somebody with air compressor 11
Breather filter 10, reversal valve and the molecular sieve used is covered, specifically, breather filter 10, reversal valve and sound lock 4 are mounted on
On the upper lid 3 of blimp 1, as shown in fig. 6, offering air inlet 3-1 on the upper lid 3 of blimp 1, breather filter enters
Gas port 3-2 and reversal valve nitrogen exhaust outlet 3-3, sound lock 4 are fixed by screws on lid 3, and between sound lock 4 and upper lid 3 also
Provided with rubber seal 13, air inlet 3-1 is located in sound lock 4, and blower fan 6, the air intake direction of blower fan 6 are provided with sound lock 4
Stagger preferably with the air inlet 3-1 positions on sound lock 4 and upper lid 3；Breather filter 10 and reversal valve are separately fixed at
On lid 3, and the gas piping of breather filter 10 and reversal valve is arranged from breather filter air inlet 3-2 and reversal valve nitrogen respectively
Gas port 3-3 is penetrated in blimp 1.The company of the parts such as above-mentioned air compressor 11, molecular sieve, breather filter 10 and reversal valve
It is same as the prior art to connect relation, its oxygen principle processed is identical with existing molecular-sieve oxygen generator, just repeats no more herein.
A kind of oxygenerator of the present embodiment, the exhaust vent such as air compressor 11 and nitrogen, will in blimp 1
Nearly all noise source is concentrated, it is achieved thereby that for sqouynd absorption lowering noise method corresponding to the use of different frequency noises, realizes system
The Comprehensive Control of oxygen machine noise.During work, air compressor 11 sucks air from breather filter 10, and compressed air is in molecule
The nitrogen adsorption in air, remaining oxygen not to be adsorbed are collected, turned into after purified treatment in the presence of sieve
The oxygen of high-purity, nitrogen are released in blimp 1, are blown from blower fan 6 into blimp 1, with the exhaust passage on bottom plate 2
2-1 forms cross-ventilation, and heat caused by the waste gas such as nitrogen and air compressor is taken away.In the course of work, air compression
High-frequency noises caused by machine 11 and its support damping spring are consumed by the acoustic board on the side wall of blimp 1, bottom plate 2 and upper lid 3
Fall, while the internal structure of blimp 1 changed using the double-deck microperforated panel 7 in blimp 1, avoid acoustic standing wave effect,
Promote the consumption of noise.The cycle exhaust sound of nitrogen air bleeding valve is a kind of air power noise of low frequency noise in generation
Source, the aluminum foam acoustic board 8 of the interior installation of blimp 1, aluminum foam acoustic board 8 have a large amount of inside and outside slight voids connected and hole
Hole, when on sound wave incident to porous material, sound wave can enter material internal along micropore, cause the vibration of air in space；By
In the friction of the viscous resistance of air, air and hole wall and conduction of heat etc., quite a few acoustic energy is set to be converted into as heat energy
And it is depleted.Meanwhile the ventilating opening for installing blower fan 6 is a main passage of noise transmission, by installing sound lock 4, and
Sound absorption processing, sound energy consumption and the diffraction approach for blocking sound wave are carried out in sound lock 4.The oxygenerator has scientific and reasonable for structure, cloth
The features such as office is compact, sqouynd absorption lowering noise effect protrudes so that the noise problem of oxygenerator has obtained very good control, meets trouble
The use demand of person, improve the comfort of Domestic oxygen erator.
Embodiment 3
The present embodiment also discloses a kind of oxygenerator sqouynd absorption lowering noise method, in the method, according to oxygenerator noise source frequency
Rate, is provided for consuming the acoustic board of medium-high frequency noise in the inwall of oxygenerator blimp 1, and the acoustic board uses aluminum foam acoustic board
8 and polyurethane foam acoustic board 9 in the combination of any one or two kinds, be provided for the cavity of oxygenerator blimp 1 is tilted
The double-deck microperforated panel 7 of low frequency noise in consumption, double-deck microperforated panel 7 is by the first microperforated panel 7-1 and the second microperforated panel 7-2
Composition, connects to form air layer 7-3, to change between the first microperforated panel 7-1 and the second microperforated panel 7-2 by connecting pole
The internal structure of blimp 1 is to reduce the standing wave phenomena of acoustic energy；And it is provided for consuming air inlet in the air inlet of blower fan 6 of oxygenerator
The sound lock 4 of diffraction acoustic energy, the madial wall of sound lock 4 are provided with sound lock acoustic board 5, and sound lock acoustic board 5 is aluminum foam acoustic board or micro-
Perforated acoustic board, to block the diffraction approach with noise insulation.
A kind of oxygenerator sqouynd absorption lowering noise method of the present embodiment, relative sound absorption is taken according to the difference of oxygenerator noise source
Noise reduction technology, each sqouynd absorption lowering noise technology is organically combined, significantly reduces noise caused by oxygenerator so that system
Oxygen machine quiet can be run, and is met the use demand of patient, is improved the comfort of Domestic oxygen erator.
The present invention a kind of oxygenerator sqouynd absorption lowering noise apparatus and method and application oxygenerator, its blimp side wall and
Acoustic board is equipped with the inner surface of upper lid, acoustic board is any one in aluminum foam acoustic board and polyurethane foam acoustic board
Or two kinds of combinations, the bottom plate of blimp are made of aluminum foam acoustic board；It is additionally provided with what is communicated with blimp cavity on blimp
Sound lock, blower fan is installed on sound lock, the madial wall of sound lock is provided with sound lock acoustic board；And it is provided with and is located in the cavity of blimp
Double-deck microperforated panel below sound lock, double-deck microperforated panel is in the tilted installation of blimp；By analyzing oxygenerator noise source frequency
The difference of rate carrys out specific aim and carries out sqouynd absorption lowering noise, maximumlly consumes the noise sound wave of each frequency band, and inhale by changing
Sound denoising device Inner structural shape, reduces acoustic standing wave effect, has effectively facilitated noise consumption；It is directed to oxygenerator wind simultaneously
The noise that machine air inlet is sent, the diffraction approach of noise is effectively blocked and completely cut off using sound lock design；Closed with scientific structure
The features such as reason, compact in design, sqouynd absorption lowering noise effect protrude so that the noise problem of oxygenerator has obtained very good control.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, without creatively designing and the technical scheme
Similar frame mode and embodiment, protection scope of the present invention all should be belonged to.
Claims (10)
1. a kind of oxygenerator sqouynd absorption lowering noise device, include the blimp (1) of internal installation air compressor (11), described sound insulation
Cover and be equipped with acoustic board on the side wall of (1) and the inner surface of upper lid (3), it is characterised in that：Described acoustic board is inhaled for aluminum foam
The combination of any one or two kinds in sound plate (8) and polyurethane foam acoustic board (9), the bottom plate (2) of described blimp (1) are adopted
It is made of aluminum foam acoustic board；The sound lock (4) communicated with blimp (1) cavity is additionally provided with described blimp (1), it is described
Blower fan (6) is installed, the madial wall of sound lock (4) is provided with sound lock acoustic board (5) on sound lock (4)；The chamber of described blimp (1)
The double-deck microperforated panel (7) being provided with vivo below sound lock (4), described double-deck microperforated panel (7) is in blimp (1) introversion
Tiltedly installation.
A kind of 2. oxygenerator sqouynd absorption lowering noise device according to claim 1, it is characterised in that：Set on described bottom plate (2)
There is the exhaust passage (2-1) that multiple tracks is obliquely installed.
A kind of 3. oxygenerator sqouynd absorption lowering noise device according to claim 2, it is characterised in that：Described blimp (1)
Side wall is surrounded by side wallboard, and passes through fastening bolt (12) and rubber washer between side wallboard, upper lid (3) and bottom plate (2)
It is connected；Described sound lock (4) is connected with blimp (1) by fastening bolt (12), and between sound lock (4) and blimp (1)
It is additionally provided with rubber seal (13).
A kind of 4. oxygenerator sqouynd absorption lowering noise device according to claim 1, it is characterised in that：The shape of described sound lock (4)
Shape is trapezoidal, and described sound lock acoustic board (5) is aluminum foam acoustic board or Micropunch Acoustic Board, and the sound lock acoustic board (5) passes through
Connecting pole is installed on the madial wall of sound lock (4) every sky；The sound absorption set on a pair of relative side walls of described blimp (1)
Plate is polyurethane foam acoustic board (9), and the acoustic board set on the relative side wall of another pair is aluminum foam acoustic board (8), described
Blimp (1) upper lid (3) on the acoustic board that sets be polyurethane foam acoustic board (9).
A kind of 5. oxygenerator sqouynd absorption lowering noise device according to claim 4, it is characterised in that：Described polyurethane foam is inhaled
The sound absorption face of sound plate (9) is pyramid or waveform or wedge shape, and polyurethane foam acoustic board (9) is pasted onto in blimp (1),
And the thickness of polyurethane foam acoustic board (9) is less than or equal to 25mm；Described aluminum foam acoustic board (8) is by connecting pole every sky
Be installed in blimp (1), and the thickness of aluminum foam acoustic board (8) is less than or equal to 10mm, aluminum foam acoustic board (8) every sky
Thickness is less than or equal to 5mm.
A kind of 6. oxygenerator sqouynd absorption lowering noise device according to claim 1 to 5 any one, it is characterised in that：Described
Double-deck microperforated panel (7) includes the first microperforated panel (7-1) and the second microperforated panel (7-2), the first described microperforated panel (7-
1) connect to form air layer (7-3) by connecting pole between the second microperforated panel (7-2).
A kind of 7. oxygenerator sqouynd absorption lowering noise device according to claim 6, it is characterised in that：Described double-deck microperforated panel
(7) area is the 40% of upper lid (3) area, and the angle of inclination of double-deck microperforated panel (7) is less than or equal to 85 °.
A kind of 8. oxygenerator sqouynd absorption lowering noise device according to claim 7, it is characterised in that：The first described microperforated panel
(7-1) and the second microperforated panel (7-2) are made of metallic plate punching of the thickness less than or equal to 1mm, and punching aperture is less than
Or equal to 1mm, perforated area is 1%~5%；Between described the first microperforated panel (7-1) and the second microperforated panel (7-2)
Air layer (7-3) thickness is less than or equal to 5mm.
9. a kind of oxygenerator of oxygenerator sqouynd absorption lowering noise device using described in claim 1 to 8 any one, the oxygenerator
Air compressor (11) is installed on the bottom plate (2) of blimp (1), is additionally provided with blimp (1) and air compressor (11)
Matching used breather filter (10), reversal valve and molecular sieve.
A kind of 10. oxygenerator sqouynd absorption lowering noise method, it is characterised in that：According to oxygenerator noise source frequency, in oxygenerator blimp
(1) inwall is provided for consuming the acoustic board of medium-high frequency noise, and the acoustic board uses aluminum foam acoustic board (8) and polyurethane foam
The combination of any one or two kinds in acoustic board (9), low frequency in consumption is provided for oxygenerator blimp (1) cavity is tilted
The double-deck microperforated panel (7) of noise, to change blimp (1) internal structure to reduce the standing wave phenomena of acoustic energy；And in oxygen processed
Blower fan (6) air inlet of machine is provided for consuming the sound lock (4) of air inlet diffraction acoustic energy, to block the diffraction with noise insulation
Approach.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711157645.6A CN107762802B (en) | 2017-11-20 | 2017-11-20 | Oxygen generator sound absorption and noise reduction device and method and applied oxygen generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711157645.6A CN107762802B (en) | 2017-11-20 | 2017-11-20 | Oxygen generator sound absorption and noise reduction device and method and applied oxygen generator |
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| CN107762802B CN107762802B (en) | 2024-06-14 |
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| Publication number | Publication date |
|---|---|
| CN107762802B (en) | 2024-06-14 |
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