CN2170798Y

CN2170798Y - Noiseless dust collector

Info

Publication number: CN2170798Y
Application number: CN 93222725
Authority: CN
Inventors: 杜嘉忠
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-19
Filing date: 1993-08-19
Publication date: 1994-07-06
Anticipated expiration: 2003-08-19

Abstract

The utility model relates to a noiseless dust collector, which comprises an external shell, a plurality of filter pipes, a dust collecting groove, a centrifugal air exhaust device and a shield body, wherein, the external shell is provided with an air inlet and an access opening, the filter pipes are arranged in the external shell, and the dust collecting groove is arranged at the bottom of the external shell for collecting dust. The centrifugal air exhaust device is arranged on the top of the external shell, a vortex motion groove of the centrifugal air exhaust device is a hollow cylindrical body, the diameter of the vortex motion groove is smaller than the external shell, the centre of the vortex motion groove is provided with a through hole, and the outer margin of the vortex motion groove is provided with more than two air outlet. The top of vortex motion groove is connected with a hollow annulus and tightly connected with a cover body and a motor. The cover body covers the vortex motion groove so as to reduce noise produced by the collision between the air flow in the vortex motion groove and the inner wall of the vortex motion groove, and the silencing is achieved.

Description

Noiseless dust collector

The utility model relates to a kind of quiet precipitron, refers in particular to special quiet design of a kind of tool and portable precipitron, and near the processing factory that its utmost point is adapted at the residential area uses.

In today of scientific and technological progress industry prosperity, people are enjoying outside the material life that industrial development brings, and what faced but is the industrial environmental issue of being brought.At present, there are most factories to belong to the less processing industry of scale, so that the raw material of industry forms product consistently, these factories are because small scale, disperse everywhere, be close to the residential area of population concentration, in environmental consciousness surging today, some are as sandblast, founding, cosmetics, the sole powder, cement flour, the gasification iron powder, carbon dust, mineral powder, the clutch powder ... Deng midget plant be characteristic because of working environment, the real precipitron that must dispose is to guarantee air quality and enterprise employee health, and avoid contaminated air is released near the local air quality of living of influence, yet, be generally used in the precipitron of relatively large factory at present, its structure is as shown in Figure 5, it is by a shell body 1, some screen pipes 2, one disposal box 3, one centrifugal air exhausting device 4 is formed, wherein:

Be provided with air intake vent and some screen pipes 2 in the shell body 1, and be provided with filter screen in the screen pipe 2, and the dust of its filtration is accepted by dust collecting trough 3;

Centrifugal air exhausting device 4 comprises a whirling motion groove 41, a motor 42, a vortex wind wheel 43, a lid 44, wherein:

Whirling motion groove 41 is a volute body, the bottom is fixed on the shell body 1, central authorities are provided with a circular open 411, so that the screen pipe 2 in whirling motion groove 41 and the shell body 1 is communicated with, in addition, whirling motion groove 41 internal diameters are greater than wheel 43 diameters in the vortex, and are provided with an air outlet 412 in a side, and its top engages a spiral type hollow ring body 413.The gas in the whirling motion groove 41 can engage lid 44 on this ring body 413 so that only can be released by air outlet 412;

Motor 42 is connected on the lid 44, and its axle is connected with wheel 43 in the vortex;

Be provided with axial blade 431 in the vortex wind wheel 43, center is located on the opening 411 of whirling motion groove 41, and termination is closed motor 42 in addition;

Lid 44 is the round body that a diameter is slightly larger than ring body 413 openings, and its lateral margin engages with the ring body 413 of whirling motion groove 41, and central authorities engage motor 42;

In said structure, when motor 42 drive vortex wind wheels 43 rotate the gas importing whirling motion groove 41 that makes in the screen pipe 2, the flow direction of its gas is as shown in Figure 6, wherein vortex wind wheel 43 is constantly the gas in the screen pipe 2 to be sucked, and export to whirling motion groove 41 by side through axial blade 21, discharge by air outlet 413 again;

Because vortex wind wheel 43 is constantly to suck gas to make generation one stream pressure in the whirling motion groove 41, but these whirling motion groove 41 diameters are same as general pump by inlet a is less to the such design that exports the b broad, it makes inlet a place the air pressure of one equilibrium be arranged so that the air-flow that air outlet 412 flows out can promote the machinery as compressor to exporting the b place, but such design use is to have significant disadvantages when precipitron:

Because of the purpose of precipitron is a dust in the filtered air, and the purpose of centrifugal air exhausting device 4 only to be air after will filtering discharge, the air pressure of not really wanting mat whirling motion groove 41 promotes other machinery.When reality was used, the air pressure in the whirling motion groove 41 produced powerful toot the sound altogether with whirling motion groove 41 inwalls, if with its use when the midget plant nearer from the residential area, certainly will have a strong impact on other people, caused another kind of noise pollution.

And the purpose of this utility model is to provide a noise far beyond the low quiet precipitron of precipitron commonly used, to overcome aforesaid drawbacks.

According to quiet precipitron of the present utility model, it comprises a shell body, a plurality of screen pipe, a dust collecting trough, a centrifugal air exhausting device, a cover body, wherein, shell body is a hollow cylinder, and the appropriate location is provided with air intake vent and access hole in the central, and the bottom is provided with wheel; Screen pipe is located in the shell body, and dust collecting trough is located at the shell body bottom to accept dust, and centrifugal air exhausting device is located at the shell body top, and it comprises a whirling motion groove, a motor, a vortex wind wheel, a lid, wherein,

The whirling motion groove is the hollow cylinder of a diameter less than shell body, its internal diameter is greater than the whirlwind wheel diameter, the central authorities of whirling motion groove be provided with one with shell body in the through hole that is communicated with, be provided with axial blade in the vortex wind wheel, the vortex wind wheel is located in the whirling motion groove, its bottom through hole covers on the whirling motion groove through hole, so that the gas in the shell body is sucked in the whirling motion groove, whirling motion groove top engages a hollow ring body, and this hollow ring body tightens close connection one lid, fix a motor on the lid, and motor spindle is connected with wheel in the vortex.

Whirling motion groove outer rim interval is provided with two vortex air outlets for 180 °, air outlet outer rim to the radius of whirling motion groove center is camber line more greatly and little by little to be dwindled, so that form the eddy current air chamber of two average gas pressure between whirling motion groove outer rim and vortex wind wheel, between each eddy current air chamber certain angle intervals is arranged, so that gas can be discharged by the tangential direction of air outlet, whirling motion groove top engages a hollow ring body, and the shape of this ring body is corresponding with whirling motion groove physical dimension; Cover body is a hollow cylinder, and it will cover on the whirling motion groove, and its top is provided with a plurality of air-vents; Collide the noise that is produced and realize quiet with air-flow and the whirling motion groove inwall that lowers in the whirling motion groove.

The whirling motion groove is provided with the vortex air outlet more than two, and between each eddy current air chamber certain angle intervals is arranged, to reduce the stream pressure in the whirling motion groove.

Further describe the utility model below in conjunction with accompanying drawing.

Fig. 1 is the exploded view of the utility model air exhausting device

Fig. 2 is the utility model constitutional diagram

Fig. 3 is that the utility model is implemented schematic diagram

Fig. 4 is that the utility model is implemented schematic diagram

Fig. 5 is the stereogram of precipitron commonly used

Fig. 6 is the schematic diagram of precipitron commonly used

At first, see also Fig. 1 and 2, the utility model comprises shell body 5, screen pipe 6, dust collecting trough 7, centrifugal air exhausting device 8, cover body 9, wherein,

Shell body 5 be a hollow cylinder and be provided with air intake vent 51 and access door 52 in central appropriate location, the bottom is provided with wheel 53;

Screen pipe 6 is located in the shell body 5, dust collecting trough 7 is located at shell body 5 bottoms, because of with precipitron commonly used roughly the same, so will not give unnecessary details;

Centrifugal air exhausting device 8 comprises whirling motion groove 81, motor 82, vortex wind wheel 83, lid 84; Wherein,

Whirling motion groove 81 is the hollow cylinder of a diameter less than shell body, its internal diameter is greater than vortex wind wheel 83 diameters, the central authorities of whirling motion groove be provided with one with shell body in the through hole that is communicated with, be provided with axial blade in the vortex wind wheel, the vortex wind wheel is located in the whirling motion groove, its bottom through hole covers on the whirling motion groove through hole, so that the gas in the shell body is sucked in the whirling motion groove

See also Fig. 3 and 4, whirling motion groove 81 its outer rims intervals are provided with two vortex air outlets 811 for 180 °.Air outlet 811 outer rims are camber line more greatly and little by little to whirling motion groove 81 radius centered and dwindle, make 83 eddy current air chambers 812 that form two average gas pressure of whirling motion groove 81 outer rims and vortex wind wheel, and 812 of each eddy current air chambers have between 30 ° every so that gas can discharge by the tangential direction of air outlet, and for example shown in Figure 4, whirling motion groove 81 outer rims also can per 120 ° be on average established three vortex air outlets 811, make and form three eddy current air chambers 812 in the whirling motion groove 81; In addition, also can establish 4 groups of above air outlets 811 in the whirling motion groove 81, to form the eddy current air chamber 812 more than 4; In addition, joint has a hollow ring body 813 on whirling motion groove 81 tops, and the shape of this ring body 813 is corresponding with the physical dimension of whirling motion groove 81, and its central containing hole slightly larger in diameter is in the diameter of vortex wind wheel 83;

Motor 82 is bonded on the lid 84, and its axle is connected with vortex wind wheel 83;

Be provided with axial blade in the vortex wind wheel 83, its center is sheathed on the center through hole of whirling motion groove, and termination is closed motor 82 in addition;

Lid 84 is that round body, the lateral margin that a diameter is slightly larger than ring body 813 central containing holes engages with the ring body 813 of whirling motion groove 81, and central authorities engage motor 82;

Cover body 9 is the hollow cylinder that a diameter is slightly less than shell body 5, and it can cover on whirling motion groove 81, and its top is provided with a plurality of air-vents 91;

Combination of the present utility model as shown in Figure 2, wherein, vortex wind wheel 83 is located in the whirling motion groove 81, its top and 82 coaxial connections of motor, and cover body 9 covers on the whirling motion groove 81;

When the utility model uses, shown in Fig. 3 and 4, because of being provided with the air outlet 811 more than 2 in the whirling motion groove 81, and has an eddy current air chamber 812 more than 2, make because the gas that has more air outlet 811 to come water conservancy diversion to suck by vortex wind wheel 83, because a certain amount of air-flow is through more air outlet 811 water conservancy diversion, the air pressure that is present in the whirling motion groove 81 is low compared with the prior art, the sound that air-flow in the relative eddy current air chamber 812 and whirling motion groove 81 inwalls are produced will be low more than prior art, thereby the utility model is when being used for often adding night shift or near the factory the residential area, the shortcoming of making us insufferable noise that its noise can significantly reduce and precipitron commonly used is sent.

Claims

1, a kind of quiet precipitron, it comprises a shell body, a plurality of screen pipe, a dust collecting trough, a centrifugal air exhausting device, a cover body, wherein, and shell body is a hollow cylinder, and the appropriate location is provided with air intake vent and access hole in the central, and the bottom is provided with wheel; Screen pipe is located in the shell body, and dust collecting trough is located at the shell body bottom to accept dust, and centrifugal air exhausting device is located at the shell body top, and it comprises a whirling motion groove, a motor, a vortex wind wheel, a lid, wherein,

The whirling motion groove is the hollow cylinder of a diameter less than shell body, its internal diameter is greater than the whirlwind wheel diameter, the central authorities of whirling motion groove be provided with one with shell body in the through hole that is communicated with, be provided with axial blade in the vortex wind wheel, the vortex wind wheel is located in the whirling motion groove, its bottom through hole covers on the whirling motion groove through hole, so that the gas in the shell body is sucked in the whirling motion groove, whirling motion groove top engages a hollow ring body, and this hollow ring body tightens close connection one lid, fix a motor on the lid, and motor spindle is connected with the vortex wind wheel, it is characterized in that:

Whirling motion groove outer rim interval is provided with two vortex air outlets for 180 °, air outlet outer rim to the radius of whirling motion groove center is camber line more greatly and little by little to be dwindled, so that form the eddy current air chamber of two average gas pressure between whirling motion groove outer rim and vortex wind wheel, between each eddy current air chamber certain angle intervals is arranged, so that gas can be discharged by the tangential direction that goes out internal orifice, whirling motion groove top engages a hollow ring body, this ring body and shape is corresponding with whirling motion groove physical dimension; Cover body is a hollow cylinder, and it covers on the whirling motion groove, and its top is provided with a plurality of air-vents; Collide the noise that is produced and realize quiet with air-flow and the whirling motion groove inwall that lowers in the whirling motion groove.

2, quiet precipitron as claimed in claim 1 is characterized in that, the whirling motion groove is provided with the vortex air outlet more than two, and between each eddy current air chamber certain angle intervals is arranged, to reduce the stream pressure in the whirling motion groove.