CN2103679U

CN2103679U - Multi-way micro-sound air pump

Info

Publication number: CN2103679U
Application number: CN 90221652
Authority: CN
Inventors: 黄亦明; 孙宏兰
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-10-12
Filing date: 1990-10-12
Publication date: 1992-05-06

Abstract

The utility model relates to a novel multi-way micro-sound air pump. The noise generated by the novel multi-way micro-sound air pump is very low, and is just 54-58 db. The air-out flow capacity is high, and the air-out pressure is high, both of which can be adjusted. Three channels of the novel multi-way micro-sound air pump transfer the same purifying air currents without carbon powders. One pump can drive three 1.5 m air rails to simultaneously work. Moreover, the novel multi-way micro-sound air pump has the advantages of small size, light weight, low cost, convenient maintenance, and very cost performance ratio, etc. Each index of performance of the novel multi-way micro-sound air pump is the leader in China and in the world. The novel multi-way micro-sound air pump replaces the air-source for air-cushion experiment.

Description

Multi-way micro-sound air pump

The utility model relates to a kind of multichannel microphony air pump, belongs to the physics educational apparatus field.

The air cushion experiment is that vast universities and colleges generally adopt owing to finishing tens of kinds of infrastests, and the air cushion experiment must be used the air pump air feed, so the air pump performance is very big to the experiment influence.

Air pump at present commonly used adopts the direct drives impeller of high speed series excited machine to produce air-flow, but, there is following shortcoming in existing air pump: first noise is very big, domesticly have three this pumps of manufacturer production, the above air pump noise of 500W is 70db, external produce that this air pump is known two producers, the one, the outlet of Britain Ealing company, all this air pumps of State Education Commission's instrument, its noise is up to 76db after measured, another producer is a West Germany LEYBOLD company, it is introduced that noise also reaches 65db, second shortcoming is that this air pump of producing both at home and abroad in the past all has carbon dust output, and this is befouling environment not only, harmful human body, and very easily stop up outgassing micropore and easy-clear not on the air cushion equipment.The 3rd shortcoming is that old-fashioned pump has only one tunnel output, and a pump can only drive the work of a gas rail.

The design people's part in the multichannel clean air pump (DC-1 type) that utility application 89216512X proposes has solved above-mentioned shortcoming, but facts have proved that above-mentioned air pump still has following defective.

1, sound-attenuating system imperfection: when the motor noise that is adopted＜90db, the complete machine noise of DC-1 pump can be less than 60db, and when the motor that adopts noise at 92-100db, the noise of this pump is 65db, this explanation needs the sound-attenuating system of DC-1 pump is redesigned to guarantee air pump when adopting various motor, and its noise can both be less than 60db to satisfy breadboard needs.

2, it is desirable that cleaner structure bulky complex, filtering effect are also owed.

3, air outlet adapter complexity and junction point easily leak gas.

4, vibration insulating system imperfection, the baffler obscission takes place in transportation often.

5, bellows very easily damages and causes gas leakage.

6, machine volume (310 * 230 * 360) and weight (16kg) are all bigger, and it is high that cost is still disliked.

The purpose of this utility model is that a kind of novel multichannel microphony air pump will be provided, and it has eliminated above-mentioned defective fully, and noise is littler.In the utility model air pump:

(1): taked tighter noise reduction measure, caused when adopting noise at 90-100db all kinds motor, air pump complete machine noise can both remain on 54-58db, than the little 2-5db of DC-1 type.

(2): cancelled the filter cleaner of independent complexity, make filter cleaner be placed directly in the top of motor in the baffler, both simplified the structure like this, and filtrate held concurrently can absorb the strong noise that motor sends.

(3): three given vent to anger to chew directly is welded on the end cap, not only simplified structure but also can not leak gas.

(4): in vibration insulating system, add the anticreep pad, come off with spring to prevent baffler.

(5): owing to take above-mentioned measure, the most flimsy bellows just is cancelled because of not needing, and the little air pump of novel multichannel that passes through after the above-mentioned optimization process is compared with aforementioned DC-1 air pump.

The processing component of novel air pump reduces 9 kinds, complete machine weight reduces 27%, volume reduces 36%, cost descends 30%, noise decline 2-5db, (when noise had reached the 60db level, it was all very difficult to reduce the 1db noise as everybody knows for we), going out atmospheric pressure and flow can work by stable 3 1.5 meters gas rails of drive simultaneously, finishes whole physical tests.

The purpose of this utility model reaches like this: whole air pump comprises that series excited machine, air pump, filter cleaner, interior baffler, anticreep mould critical pieces such as sheet, outer silencer cover, its improvement has been to cancel independent, huge filter cleaner and bellows, high speed series excited machine 1, air pump 2 and filter cleaner 9 are placed in the inside of the filter cartridge 5 of eliminating the noise jointly, the noise reduction filtering is once finished in tube 5.Chew the top that directly is welded in end cap with giving vent to anger.Be provided with insulation board 6 in the tube, article such as half-moon-shaped shelves tablet 11 and 12, pressure ring 7 and sound-absorbing damping material sponge, offset plate, the passage of speaking to baffler has been done special processing, make into curved shape, the carbon dust that motor produces is eliminated with the filtering mode, and the filter cleaner of will eliminating the noise places in the outer sound proof housing 15, outer sound proof housing is provided with stiffening rib, inside is lined with the sound-absorbing sponge, and the power supply of 220V is by power plug 20, and switch 17 and speed regulator 18 insert motor.

Concrete structure of the present utility model is to be provided by following examples and accompanying drawing:

Accompanying drawing 1 is the utility model plan view,

Accompanying drawing 2 is the plan view of Fig. 1,

Accompanying drawing 3 is the side view of Fig. 1,

Accompanying drawing 4 is import MN sectional drawings of noise elimination one filter cleaner 5,

Accompanying drawing 5 is anticreep pad plan views,

Accompanying drawing 6 is side views of Fig. 5,

Accompanying drawing 7 is mounting types of anticreep pad, spring, baffler.

Describe design philosophy of the present utility model and structure in detail below in conjunction with accompanying drawing:

The series excited machine 1 that runs up directly drives the variable cross section impeller air pump 2 of exploitation in 80 year latter stage, suction is discharged by the C place behind the next air in A place by B again, at this moment air-flow is carrying the carbon dust that C place carbon brush produces, and the filter cleaner 9 of flowing through, the air after filtering are given vent to anger by three and chewed 10 discharges for using.Motor 1 and air pump 2 are positioned over above the noise elimination filtering stack shell 5 inner sound isolation plates 6 by sound absorbing materials such as offset plate 3 sponges 4, and pressure ring 7 is pushed down air pump by offset plate and made it fixing.The suction port A place of baffler 5 is provided with two semilune retaining tablets 11 and 12 in the main cradle of noise, and retaining tablet 11 is stained with the sound-absorbing sponge, can make noise be absorbed, reflect and weaken in the passage of bending like this.Have a plurality of air inlet apertures at suction port A place, the all cut fillet that forms of the wedge angle of aperture is to reduce pneumatic noise, whole noise elimination one filter cleaner 5 is to pass through rubber cushion, spring 13 and anticreep pad 25 and be fixed on the top of base plate 14 so that outer cover 15 does not resonate, outer cover is provided with stiffening rib, and its inwall is lined with sponge.Filter cleaner is made with the heavy body sponge of the nearly 70mm of thickness, has many apertures above it in case the blocking powder stops up the micropore of filtrate causes lacking cooling blast and cause motor overheating.

In the utility model, also taked following measure:

1, have three of anti-slide fastener and give vent to anger and chew the top that directly is welded in the filter cleaner end cap of eliminating the noise, so not only stifled cut off junction point leak gas but also reduced two kinds of complexity parts, also make installing/dismounting more convenient.Upper end cap system is by linking to guarantee sealing with the weight orchid between rubber plate 3, sponge 4 and the stack shell 5.

2, chew for preventing to give vent to anger with the gap location of outer cover and leak sound, adopt the seal ring 21 of press forming to be enclosed within to give vent to anger and chews the outside.The mode of blocking up with plug can make this pump only use the work of 1-2 passage.

3, the direction of the suction port A of the suction port 8 of air pump and the filter cleaner of eliminating the noise is 180 ° mutually.Should make the two away from the noise that outwards sends with minimizing suction port 8 places.

4, steel pad 25(Fig. 5 of anticreep being housed on the shock-absorbing spring) its mounting type represents that in Fig. 7 13 is shock-absorbing springs among the figure, the 22nd, screw rod, the 23rd, nut, the 24th, vibration isolation rubber.

In sum, the multichannel microphony air pump stable performance that the utility model proposes, rational in infrastructure, its exportable big flow, the purifying air and can regulate as required of high pressure, it can make 3 1.5 meters gas rails stable operation simultaneously, its weight, volume and cost reduce 27%, 36% and 30% than DC-1 type pump respectively.The noise that sends then reduces 2-5db, past the test room that 12 gas rails are arranged, adopt 12 old-fashioned air pumps of 65-70db, room noise is up to 76-81db, even reaches 85-90db, electricity consumption 4800W, nowadays adopt the utility model air pump only to need 4, at this moment, not only cost of equipment can save 40%, room noise has only 62-64db, (decline 14-17db), also can save 50% electric energy and avoid carbon dust very little to the pollution and the output gas flow temperature rise of the gentle rail of environment.

After measured, this novel air pump performance is as follows:

1, the three tunnel (can single, double road) output purifying gas flow, 2, flow: 0.5-1.25m ²/ h, adjustable.3, pressure: 500-1400mmH ₂O, adjustable.4, noise: 54-58db.

5, power: 200-620W is adjustable.6, output gas flow temperature rise;＜25 ℃.

But 7 continuous operations 10 hours.8, volume, weight: 230 * 230 * 310mm, 11.7kg.

Above-mentioned performance obviously is better than all kinds air pump of known domestic production, also obviously is better than the air pump of Britain Ealing and West Germany LEYBOLD.

In addition, this air pump also can adopt the machine operation of 600-1000W and need not change any parts, so have bigger versatility, at this moment the gas flow of Chan Shenging, pressure and noise all increase to some extent.

Claims

1, a kind of multichannel microphony air pump, it comprises series excited machine 1, air pump 2, filter cleaner 9, interior baffler 5, anticreep pad 25 and outer silencer cover 15.It is characterized in that: the series excited machine 1 of this pump, air pump 2 and filter cleaner 9 all place in the stack shell of noise reduction one filter cleaner 5 jointly, air through filtering is chewed 10 output uses with there being three of anti-slide fasteners to give vent to anger, give vent to anger to chew and be welded in the end cap top, in noise reduction one filter cleaner 5 stack shells, be provided with insulation board 6, semilune washer 11,12, pressure ring 7 and sound-absorbing damping material sponge, the offset plate article, the baffler sound channel is made into curved shape, the carbon dust that motor produces adopts narrow meshed sponge filter cleaner to be eliminated, and the filter cleaner 5 of eliminating the noise is by rubber cushion 24, anticreep pad 25 and spring 13 be fixed on base plate 14 above, place outer sound proof housing 15 inside again.

2, according to the described multichannel microphony of claim 1 air pump, it is characterized in that: be with seal ring giving vent to anger to chew, end cap system links by rubber plate 3 and sponge 4 and stack shell 5 usefulness weight orchids, motor in tube and air pump are seated in above the insulation board 6 by rubber plate and sponge, push down air pump with pressure ring 7 by rubber plate again, make it fixing.

3, multichannel microphony air pump according to claim 1 and 2, it is characterized in that being provided with 2 half-moon-shaped shelves soundboards 11 and 12 at the suction port A place of filtering the device 5 that disappears that eliminates the noise makes sound channel be curved shape, and on retaining tablet 11, be stained with sponge, suction port A place at the filter cleaner 5 of eliminating the noise has a plurality of apertures, and sharp corner all makes into fillet to reduce pneumatic noise on the aperture.

4, according to claim 1 or 2 described multichannel microphony air pumps, it is characterized in that the filtrate of filter cleaner adopts heavy body sponge, have many breeder tubes above,, carbon dust makes motor overheating in order to avoid stopping up the filtrate micropore.

5, multichannel microphony air pump according to claim 1 and 2, the filter cleaner integral body that it is characterized in that eliminating the noise places the inside of outer silencer cover 15, outer silencer cover is provided with stiffening rib, inwall is lined with sponge, the direction of air pump suction port 8 its directions and the filter cleaner suction port A that eliminates the noise differs from 180 °, makes these two suction ports away from the noise that sends with minimizing.