CN101269356A - Inner core acceleration type cyclone separator - Google Patents

Abstract

The invention discloses an inner core accelerated cyclone separating device used for a vacuum cleaner. The inner core accelerated cyclone separating device comprises an external cyclone chamber used for separating dust from air with dust, a first dust collection chamber which is encircled by the external cyclone chamber, a central cone-shaped accelerator having the same axis with the external cyclone chamber, a second collection chamber collected with the output of the central cone-shaped accelerator, a water droplet-shaped deflector in the cyclone separating device used for enhancing the efficiencies of the pumping and dust collection, a dust ring and a reflective screen. The air flow with dust entering the cyclone separating device is rotated only once, and the thick ash is separated by the external cyclone chamber into the first dust collection chamber, the core of the cyclone region has air flow with small dust particles; after being further accelerated by the droplet-shaped deflector and the central cone-shaped accelerator, the thin dust is separated and is stored into the second collection chamber, therefore, compared with a twin dust collector, the inner core accelerated cyclone separating device reduces the energy loss of air flow with dust, achieves greater air volume and obtains better pumping and dust collection efficiencies.

Description

Inner core accelerating type cyclone separating

Technical field

The vacuum cleaner that the present invention relates to cyclone separator and have described cyclone separator.

Background technology

Usually, cyclone separator produces vortex in the cyclone chamber, to utilize centrifugal force dust-separating and dirt.This embodiment that is applied to the cyclone separator of vacuum cleaner is disclosed in U.S. Patent No. 3,425, and 192 and 4,373,228 and 4,571,772 and 4,593,429;

In above-mentioned patent, use a kind of traditional cyclone separator and dust arrester, it utilizes two stage cyclone separator dust-separating from the air that is loaded with dust.In above structure; most big grits or dirt are separated at the first cyclone place with parts of fine dirt, and in separated air inflow second level cyclone of dust or the auxiliary cyclone separating thin grit or dirt, yet; traditional dust catcher has following weak point:

At first, the two stage cyclone structure need be quickened dust-contained airflow respectively to make the dust catcher pressure loss very big to produce swirling eddy in the first order and second level cyclone chamber, causes the air quantity of dust catcher to reduce; In order to improve air quantity, often adopt three kinds of methods, first method is with cylindrical shell overstriking of dirt cup or lengthening, and the mode that just simple passing through increases volume increases air quantity, and still, this mode can make the cost of dust catcher raise rapidly; Second method is that two or more cylindrical shells that contain dual stage filter apparatus are carried out parallel connection, obtaining bigger air quantity, as patent: as described in the ZL200520074723.2; The third method is that first order whirlwind is adopted single cylindrical shell whirlwind, and second level whirlwind adopts a plurality of Whirlwind barrels to carry out mode in parallel, and this mode was being used in recent years in a large number, for example patent: ZL2005101301115 is described; Three kinds of above ways can improve air quantity to a certain extent, but can not solve the big problem of the pressure loss.

Secondly, the two stage cyclone separator, need air-flow to carry out the acceleration of circling round for twice, cause the dirt cup very big into and out of the pressure loss in air port, the dust catcher blower fan needs long-term work at the condition of high vacuum degree state, influenced the life-span of blower fan, this problem causes two stage cyclone formula dust catcher can't use common dust catcher blower fan, needs to use the high pressure blower fan.

Once more, two-stage is quickened isolating construction and is made dirt cup structure complexity, and the dust catcher cost is increased; And because of the sealing between first order whirlwind and second level whirlwind, make to connect complexity, cause the consumer to use inconvenience.

Therefore, exist the demand that solves above-mentioned shortcoming and defect in the industry up to now.

Summary of the invention

The present invention is mainly used in and overcomes the above problem.The purpose of this invention is to provide that a kind of air quantity is big, volume is little, the vacuum cleaner of dust separation efficient height, cyclone separator simple and reliable for structure.

In order to realize above-mentioned purpose of the present invention; low at one-level rotoclone collector whirlwind angular speed, turbulence intensity is high, the problem of fine particle dust poor filtration effect; the whirlwind nucleus is proceeded steady acceleration; to improve fine dust particle separation effect; needing in the existing dust catcher two stage cyclone filtration to avoid dust-contained airflow to carry out twice rotation simultaneously and quickened the problem that needs consume more energy, made common dust catcher can save 10～20% power.

In order to realize above-mentioned purpose of the present invention, a kind of inner core accelerating type cyclone separating that is used for vacuum cleaner is provided, described cyclone separator comprises the outer cyclone chamber and first dust storage chamber that is used to deposit a large amount of dusts of dust-separating from the air that is loaded with dust; In the cyclone chamber, a taper accelerator that makes air quicken rotation is arranged outside, second dust storage chamber of collecting thin ash is arranged, be used to collect through quickening the thin ash after rotation separates in taper accelerator bottom with the same axis of outer cyclone chamber; There is the water droplet shape air deflector that dust-contained airflow is steadily quickened at close taper accelerator top edge position in the cyclone chamber outside, makes the dust-contained airflow that enters the taper accelerator steadily to quicken, and obtains bigger rotary speed; At the cyclone separator upper wall shelves dirt ring of an annular is arranged, make that the contained dust of ascending air can be separated by whirlwind again in the outer cyclone chamber after the enough big rotary speed of acquisition; At taper accelerator bottom opening place, the shelves dirt awl of an and coaxial line relative with the taper accelerator is arranged at the second dust storage chamber top.

More detailed air motion of the present invention and the explanation of dust separation principle are: dust-contained airflow is from dirt cup air inlet 1 cyclone chamber 2 outside dirt wall of cup tangent line enters, dust-contained airflow rotates in the cyclone chamber 2 outside, part dust compiles and enters first dust storage chamber 3 from outer cyclone chamber dust fall gap 11 to the dirt wall of cup in the process of rotation, a part of in addition dust compiles to the whirlwind core to dirt cup upper side wall and moves, this part dust is by annular dust-blocking plate 7 resistance shelves, leave dirt cup upper wall and move down, reenter the dust-laden swirling eddy with certain angle and speed, these dusts will be separated once more.Dust-contained airflow is through after the rotation of cyclone chamber 2 separates outside, and superfine little dust granule only is left in heart zone therein, and continues to move to the whirlwind kernel with air-flow.Dust-contained airflow is under the effect of water droplet shape air deflector 6, avoided of the interference of air inlet air-flow to swirling eddy, and the rotary speed of air-flow is further improved, the air-flow that contains superfine dust granule steadily enters central taper accelerator 4, central authorities' taper accelerator is that a upper end is big, the bullet that the lower end is little, in central taper accelerator, along with the steady decline of air-flow in bullet, the air-flow angular velocity of rotation further improves, superfine little dust granule in the dust-contained airflow is converged with amassing on the bullet sidewall and along sidewall is moved down into taper accelerator dust fall mouth 12 places, entered in second dust storage chamber 5 by the space between radiation shield 8 and the taper accelerator dust fall mouth 12, the clean gas after the dust separation is discharged the dirt cup through air outlet 9.

Advantage of the present invention is:

1. kernel whirlwind accelerator of the present invention can steadily quicken the whirlwind kernel, makes superfine little dust separate from dust-contained airflow, has improved the separating effect of dust catcher to tiny material dust greatly.

2. the invention enables the interior air-flow of dirt cup only once to rotate acceleration, the pressure loss of air-flow is little, can obviously improve the air quantity of dust catcher.

3. existing vacuum cleaner cyclone Technology Need is than large space, and it is less than storing grey space greatly to make the dirt cup volumes, and with respect to the two stage cyclone separator of equal air quantity, the present invention can reduce the volume of dirt cup greatly, increases the grey space of storage, and the dust catcher volume is reduced.

Description of drawings:

Fig. 1 is the middle profile of the cyclone separator of one embodiment of the present invention;

Wherein, the 1st, air inlet; The 2nd, outer cyclone chamber; 3 is first dust storage chambers; The 4th, central taper accelerator; 5 is second dust storage chambers; The 6th, water droplet shape air deflector; The 7th, annular dust-blocking plate; The 8th, radiation shield; The 9th, air outlet; The 10th, the dirt cup; The 11st, outer cyclone chamber dust fall gap; The 12nd, taper accelerator dust fall mouth; The 13rd, dirt cup whirlwind core body; The 14th, dirt cup loam cake, the 15th, dirt cup lower cover;

Fig. 2 is the air outlet position horizontal sectional drawing of the cyclone separator of one embodiment of the present invention;

Other two kinds of examples of Fig. 4-1, Fig. 4-2 water droplet shape air deflectors;

Fig. 3 is critical size mark figure;

Fig. 5, Fig. 6 are other two kinds of embodiment of annular dust-blocking plate;

Fig. 7, Fig. 8 are other two kinds of embodiment of radiation shield;

The specific embodiment:

As shown in Figure 1 and Figure 2, a kind of cyclone separator dust arrester of dust catcher, concrete parts comprise dirt cup 10, whirlwind core component 13, dirt cup loam cake 14, dirt cup lower cover 15, annular dust-blocking plate 7, radiation shield 8.Dust-contained airflow enters dirt cup 10 from dirt cup air inlet 1 along dirt wall of cup tangent line, and dust-contained airflow is in dirt cup 10 internal upper parts rotations, the part dust in the process of rotation to the dirt wall of cup compiles and passes outside cyclone chamber dust fall gap 11 fall into bottom the dirt cup.A part of in addition dust enters whirlwind core body 13 from whirlwind core body 13 top edges stably with air-flow, dust-contained airflow is big a upper end, quicken rotation in the little bullet in lower end, the fine dust particle is entered by bullet small end exit in the dust storage chamber of dirt cup whirlwind core body 13 bottoms, and the clean gas after the dust separation is discharged the dirt cup through air outlet 9.

Analyze with Fluent software; With one directly through 160mm, the dirt cup of height 250mm as power source, compares test with the building building cement dust as a suction material with 1600W common blower fan.As Fig. 2, shown in Figure 3, but the concrete preference data of present embodiment and excursion are as follows:

1.D1＝35～40mm；

2.D2＝0～15°

3.D3＝45～90°；

4.D4＝70～90mm；

5.D5＝12～20°

6.D6＝10～20mm；

7.D7＝5～10mm

8.D8＝5～30°

9.D9＝3～5mm；

10.D10＝30～50mm；

11.D11＝30～35mm；

12.D12＝10～30mm；

13.D13＝20～30mm；

14.D14＝10～20mm；

15.D15＝60～70mm；

16.D16＝5～15°

17.D17＝30～60mm。

Claims (7)

1. inner core accelerating type cyclone separating, comprise: have tangent air inlet (1), the cylindrical dirt cup of air outlet (9), it is characterized in that: a columniform outer cyclone chamber (2) is formed at the top of dirt cup, first dust storage chamber (3) is formed on the bottom of dirt cup, have in the dirt cup that upper end with the same axis of outer cyclone chamber is big, the lower end is little and upper end and the full communicating central taper accelerator of outer cyclone chamber (4), and export second dust storage chamber (5) that links to each other with central taper accelerator (4).

2. cyclone separator according to claim 1 has the water droplet shape air deflector (6) that the whirlwind centre is steadily quickened near the air inlet place in the cyclone chamber outside.

3. according to claim 1,2 described cyclone separators, the tangent line of any point of water droplet shape air deflector (6) inside curve and be that the angle D2 of tangent line of this null circle of mistake in the center of circle 0 spends between 15 degree with dirt cup axle center; Wherein optimum range is 3 to spend between 5 degree and change.

4. according to claim 1,2,3 described cyclone separators, water droplet shape air deflector (6) can adopt the air deflector as Figure 21, fracture morphology shown in Figure 22.

5. cyclone separator according to claim 1, the air inlet center line central taper accelerator (4) top edge and outside between cyclone chamber (2) upper wall.

6. cyclone separator according to claim 1, the cyclone chamber upper wall has an annular shelves dirt ring outside.

7. cyclone separator according to claim 1, there is a radiation shield (8) at the outlet at bottom place at taper accelerator (4).

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