CN103710658B - Electric arc spraying silencing apparatus and sound reduction method - Google Patents
Electric arc spraying silencing apparatus and sound reduction method Download PDFInfo
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- CN103710658B CN103710658B CN201310640944.0A CN201310640944A CN103710658B CN 103710658 B CN103710658 B CN 103710658B CN 201310640944 A CN201310640944 A CN 201310640944A CN 103710658 B CN103710658 B CN 103710658B
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Abstract
The present invention relates to a kind of electric arc spraying silencing apparatus that can effectively eliminate produced howling when spraying at a high speed muzzle in electric arc spraying work progress due to air-flow and sound reduction method, be made up of base, outer wall sleeve, sound-absorbing porous material, perforated pipe, hoop；Outer wall sleeve one end is connected with base, outer wall sleeve other end center has punching and punching wall to be connected with one end of the perforated pipe mouth of pipe, the other end of the perforated pipe mouth of pipe is connected with centre hole of base wall, and sound-absorbing porous material overlaps between perforated pipe outer wall with outer wall sleeve lining and coordinates in spacing between sound-absorbing porous material with perforated pipe outer wall and outer wall sleeve.Advantage: one is that this silencing apparatus can be directly mounted on the rifle mouth of arc pistol, reduces noise pollution, improves construction environment from source；Two be the structure of silencing apparatus and size less, lightweight, simple in construction, do not affect electric arc spraying work；Three is that this device can be dismantled easily, it is simple to installs and keeps in repair, enhances practicality.
Description
Technical field
The present invention relates to a kind of electric arc spraying silencing apparatus that can effectively eliminate produced howling when spraying at a high speed muzzle in electric arc spraying work progress due to air-flow and sound reduction method, belong to electric arc spraying silencing apparatus and manufacture field.
Background technology
Due to air-flow ejection muzzle at a high speed in electric arc spraying work progress, and produce the noise of up to 120 decibels in the instantaneous pressure reduction of ejection, have a strong impact on construction environment and health of human body, even the audition of operator is damaged.In order to completely cut off noise, electric arc spraying is the most all constructed in the Factory Building closed, and operator wears earplug, earmuff etc. and carries out labor protection.But for operator, closely earplug during operation, earmuff protection effect limited；And at some in particular cases, electric arc spraying needs operation in the open, noise can be to job site or close on the non-operator of job site and damage, it is therefore desirable to a kind of sound arrester is constructed for electric arc spraying.The kind of the most conventional acoustic filter is a lot, but a kind of equipment may be directly applied to electric arc spraying.
Summary of the invention
Purpose of design: avoid the weak point in background technology, designs a kind of electric arc spraying silencing apparatus that can effectively eliminate produced howling when spraying at a high speed muzzle in electric arc spraying work progress due to air-flow and sound reduction method.
Design: in order to realize above-mentioned purpose of design.The present invention has found that electric arc spraying needs to utilize high velocity air to spray on structure designs, so it is the most infeasible by the means such as air-flow blood pressure lowering, deceleration being reached the method for noise reduction, only from sound absorption principle, utilize resonance sound-absorbing principle and porous sound-absorbing material to increase acoustic resistance, to absorb noise, and structure and size to silencing apparatus are designed, and are allowed to be applicable to electric arc spraying equipment.For this present invention on structure designs, it is made up of parts such as base, outer wall sleeve, perforated pipe, sound-absorbing porous material, hoops；Overall structure uses the aluminium alloy of thickness 2～3mm, is allowed to have some strength and energy is corrosion-resistant；Device center is one and opens foraminate metal tube, percent opening 1～5%, opening diameter 3mm.Outer wall sleeve is connected with base by thread.Hoop is fixed on arc nozzle termination, is connected with base by bolt；Sound-absorbing material (can be the exotic material such as metal gauze or glass cotton) is filled in the cavity between perforated pipe and outer wall sleeve, and front and back certain thickness air layer is all left in both sides；Having the annular of equal projection on base and outer wall sleeve, its effect is that the sound-absorbing material to perforated pipe and filling is fixed；Having dust pollution during in view of electric arc spraying, therefore perforated pipe and sound-absorbing porous material are designed as the absolute construction that can conveniently dismantle, and once occur that the situation affecting soundproof effect because of adsorbing powder dust blocking can be replaced at any time.
Technical scheme 1: a kind of electric arc spraying silencing apparatus, is made up of base, outer wall sleeve, sound-absorbing porous material, perforated pipe, hoop；Outer wall sleeve one end is connected with base, outer wall sleeve other end center has punching and punching wall to be connected with one end of the perforated pipe mouth of pipe, the other end of the perforated pipe mouth of pipe is connected with centre hole of base wall, and sound-absorbing porous material overlaps between perforated pipe outer wall with outer wall sleeve lining and coordinates in spacing between sound-absorbing porous material with perforated pipe outer wall and outer wall sleeve.
Technical scheme 2: the sound reduction method of a kind of electric arc spraying silencing apparatus, when high velocity air passes through from perforated pipe, a part of medium and low frequency noise is absorbed by resonance sound-absorbing principle, then caning absorb a part of high frequency noise by sound-absorbing porous material, certain thickness air layer can increase acoustic absorptivity, improve acoustically effective.
The present invention is compared with background technology, and one is that this silencing apparatus can be directly mounted on the rifle mouth of arc pistol, reduces noise pollution from source, improves construction environment；Two be the structure of silencing apparatus and size less, lightweight, simple in construction, do not affect electric arc spraying work；Three is that this device can be dismantled easily, it is simple to installs and keeps in repair, enhances practicality；Four is binding resonant sound absorption principle and porous sound-absorbing material, has widened sound sucting band scope, has improve acoustic absorptivity.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of electric arc spraying silencing apparatus.
Fig. 2 is Fig. 1 axis side structure schematic diagram.
Fig. 3 is the structural representation after Fig. 1 is connected with arc pistol mouth.
In figure: 1-base；2-outer wall sleeve；3-sound-absorbing porous material；4-perforated pipe；5-hoop；6-arc pistol mouth；7-connecting bolt.
Detailed description of the invention
Embodiment 1: 1-3 referring to the drawings.A kind of electric arc spraying silencing apparatus, is made up of base 1, outer wall sleeve 2, sound-absorbing porous material 3, perforated pipe 4, hoop 5；Outer wall sleeve 2 one end is connected with base 1, outer wall sleeve 2 other end center has punching and punching wall to be connected with one end of perforated pipe 4 mouth of pipe, the other end of perforated pipe 4 mouth of pipe is connected with base 1 center hole wall, and sound-absorbing porous material 3 overlaps and coordinates in spacing between perforated pipe 4 outer wall with outer wall sleeve 2 inwall and between sound-absorbing porous material 3 with perforated pipe 4 outer wall and outer wall sleeve 2.Sound-absorbing porous material 3 is metal gauze or glass cotton exotic material.Arc pistol mouth 6 is connected with silencing apparatus by hoop 5 and bolt 7.The annular boss of equal projection is had on base 1 and outer wall sleeve 2.Base 1, outer wall sleeve 2, perforated pipe 4 all use the aluminium alloy of thickness 2～3mm.Percent opening 1～5% on perforated pipe 4 wall, opening diameter 3mm.Hoop 5 is fixed on arc pistol mouth 6 termination and is connected with base 1 by bolt 7.
I.e., in FIG, first being kept flat by base 1, perforated pipe 4 and sound-absorbing porous material 3 are fixed on base 1, then outer wall sleeve 2 is tightened on base 1 the composition silencing apparatus position of perforated pipe and sound-absorbing porous material (locating ring of base and sleeve upper process can fix).
In fig. 2, a pair hoop 5 is fixed on arc pistol mouth 6 by connecting bolt 7, then with connecting bolt 7, silencing apparatus and hoop 5 is linked together.When spraying application, air-flow sprays from nozzle, utilizes perforated pipe resonance and sound-absorbing porous material sound absorption principle during by silencing pot, reaches to absorb and the effect of isolation noise.
Embodiment 2: on the basis of embodiment 1, a kind of sound reduction method of electric arc spraying silencing apparatus, it is characterized in that: when high velocity air passes through from perforated pipe 4, a part of medium and low frequency noise is absorbed by resonance sound-absorbing principle, then caning absorb a part of high frequency noise by sound-absorbing porous material 3, certain thickness air layer can increase acoustic absorptivity, improve acoustically effective.
It is to be understood that: although the word that the mentality of designing of the present invention is contrasted detailed by above-described embodiment describes; but these words describe; simply the simple text of mentality of designing of the present invention is described; rather than the restriction to mentality of designing of the present invention; any combination without departing from mentality of designing of the present invention, increase or revise, each falling within protection scope of the present invention.
Claims (7)
1. an electric arc spraying silencing apparatus, is characterized in that being made up of base (1), outer wall sleeve (2), sound-absorbing porous material (3), perforated pipe (4), hoop (5)；Base (1), outer wall sleeve (2), perforated pipe (4) all uses the percent opening 1～5% on the aluminium alloy of thickness 2～3mm and perforated pipe (4) wall, outer wall sleeve (2) one end is connected with base (1), outer wall sleeve (2) other end center has punching and punching wall to be connected with one end of perforated pipe (4) mouth of pipe, the other end of perforated pipe (4) mouth of pipe is connected with base (1) center hole wall, sound-absorbing porous material (3) set is positioned between perforated pipe (4) outer wall with outer wall sleeve (2) inwall and coordinates between sound-absorbing porous material (3) with perforated pipe (4) outer wall and outer wall sleeve (2) in spacing and sound-absorbing porous material (3) is filled in the cavity between perforated pipe and outer wall sleeve, front and back certain thickness air layer is all left in both sides.
Electric arc spraying silencing apparatus the most according to claim 1, is characterized in that: sound-absorbing porous material (3) is metal gauze or glass cotton exotic material.
Electric arc spraying silencing apparatus the most according to claim 1, is characterized in that: arc pistol mouth (6) is connected with silencing apparatus by hoop (5) and bolt (7).
Electric arc spraying silencing apparatus the most according to claim 1, is characterized in that: have the annular boss of equal projection on base (1) and outer wall sleeve (2).
Electric arc spraying silencing apparatus the most according to claim 1, is characterized in that: the opening diameter 3mm on perforated pipe (4) wall.
Electric arc spraying silencing apparatus the most according to claim 1, is characterized in that: hoop (5) is fixed on arc pistol mouth (6) termination and is connected with base (1) by bolt (7).
7. a sound reduction method for electric arc spraying silencing apparatus as claimed in claim 1, is characterized in that: when high velocity air passes through from perforated pipe (4), absorbs a part of medium and low frequency by resonance sound-absorbing principle and makes an uproar
Sound, then by the absorbable a part of high frequency noise of sound-absorbing porous material (3), certain thickness air layer can increase acoustic absorptivity, improve acoustically effective.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310640944.0A CN103710658B (en) | 2013-12-04 | 2013-12-04 | Electric arc spraying silencing apparatus and sound reduction method |
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| CN201310640944.0A CN103710658B (en) | 2013-12-04 | 2013-12-04 | Electric arc spraying silencing apparatus and sound reduction method |
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| CN103710658A CN103710658A (en) | 2014-04-09 |
| CN103710658B true CN103710658B (en) | 2016-08-17 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106328114B (en) * | 2016-08-15 | 2020-05-05 | 中南大学 | PM2.5 emission reduction device's combined type noise elimination system based on strong sound is condensed |
| CN113088860A (en) * | 2021-03-23 | 2021-07-09 | 西北工业大学 | Explosion spraying auxiliary device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202530144U (en) * | 2012-04-25 | 2012-11-14 | 新兴铸管股份有限公司 | Low-noise zinc sprayer |
| CN203700479U (en) * | 2013-12-04 | 2014-07-09 | 中铁宝桥集团有限公司 | Electric arc spraying muffler device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001172758A (en) * | 1999-12-15 | 2001-06-26 | Toshiro Ikuta | Catalyst silencer for thermal spraying gun |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202530144U (en) * | 2012-04-25 | 2012-11-14 | 新兴铸管股份有限公司 | Low-noise zinc sprayer |
| CN203700479U (en) * | 2013-12-04 | 2014-07-09 | 中铁宝桥集团有限公司 | Electric arc spraying muffler device |
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| CN103710658A (en) | 2014-04-09 |
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