CN2077486U

CN2077486U - High-speed-rotating dynamic air filter

Info

Publication number: CN2077486U
Application number: CN 90220219
Authority: CN
Inventors: 黄佑生; 孙茂棠; 刘闽京
Original assignee: Beijing Institute of Technology BIT
Current assignee: Beijing Institute of Technology BIT
Priority date: 1990-09-14
Filing date: 1990-09-14
Publication date: 1991-05-22

Abstract

The utility model relates to a high-speed rotary type dynamic air filter, which is composed of a cylindrical outer casing, rotors which are arranged in the outer casing and are connected with a shaft, a support sheet which supports a transmission shaft, a flow guide cone, an air input cylinder which is connected with the flow guide cone and has a dust collecting volute, and an external-connected channel body, wherein, all the rotors are composed of spiral blades; spiral dust-collecting groove channel is arranged on the inner wall of the outer casing. The utility model not only has the advantage of high filtering efficiency, but also has the advantages of small volume and simple structure, being an advanced air collecting filter.

Description

High-speed-rotating dynamic air filter

The utility model is that the air-strainer that is used for general vehicle and military vehicle engine can be used to the air that purifying engine is used.

Present general vehicle and military vehicle, all the filtering efficiency of air-strainer and the size of the dust after the filter there is very strict technical requirements, what U.S. Pat of the prior art-4832709 and US-4255174 adopted is cyclone separating, the former is mainly by shell, rotor and external passage body are formed, before rotor is, back guide vane combines with straight sheet blade, the straight sheet blade-section of this rotor makes the big leap ahead of rotor length under same filtering efficiency condition, thereby strengthened the volume of filter cleaner, improved cost, and dust collect plant is the ring-type circular groove of opening in the enclosure, dust collecting effect is poor, for the minimizing secondary gas flow loses the method that the rotor outer rim that is adopted is wrapped with fine wire, increased the complexity of technology.The latter's blade does not rotate, thereby air-flow is when producing vortex, and flow losses are bigger.

The purpose of this utility model is that the deficiency that overcomes existing filter cleaner provides a kind of rotary dynamic air filter with high speed rotational blade, behind the rotation blade of this filter cleaner of dust laden air flow path, dust is under action of centrifugal force and thrown to blade edge at a high speed, after the spiral dust collecting trough collection on the shell, cause outside the shell, air after filtering is exported filter cleaner along rotor axial, improved the filtering efficiency of air greatly and reduce to filter after the size of dust size.And the aerodynamic loss when having reduced gas flow.

This high-speed rotative dynamic air filter, by cylinder type shell 1, be contained in the shell 1 and the rotor 3 that links to each other with axle 5, the support plate 19 and the flow deflecting cone 22 of support drive motor 7 and axle 5, the gas transmission tube 18 of the band dust volute 20 that links to each other with flow deflecting cone 22, the external passage body 6 that links to each other with shell 1 is formed, it is characterized in that: the blade 17 of rotor 3 all is a helical, blade 17 is at least six, have control of dust conduit 2 on shell 1 inwall, control of dust conduit 2 is a spirality, control of dust conduit 2 is no less than three, have at least three circular grooves 21 to join between the control of dust conduit 2, blade 17 is opposite with the Hand of spiral of control of dust conduit 2, the helix angle of blade 17 is 15 °～50 °, the helix angle of control of dust conduit 2 is 0 °～65 °, dust volute exports 15 places the anti-adverse current bag 16 of rubbery membrana dermalis is housed, and in the external passage body 6 drive motor 7 is housed.

This filter cleaner not only filtering efficiency height and volume is little, simple in structure, the energy that gas is lost when filtering is less, be easy to product percent of pass, starting airborne device convenient, the installation of filter cleaner and less to the performance impact of motor has stronger auto purification ability, thereby the maintenance interval of filter cleaner is prolonged greatly.

Concrete structure of the present utility model is provided by accompanying

drawing

1,2,3,4,5,6,7,8,9,10,11,12,13,14.

Fig. 1 is the high-speed rotative dynamic air filter fundamental diagram.

Fig. 2 is a high speed rotating dynamic air filter structural drawing.

Fig. 3 is the high speed rotating dynamic air filter structural drawing of band drive motor.

Fig. 4 is a helical blade type rotor plan view.

Fig. 5 is a helical blade type rotor-side view.

Fig. 6 is the housing plan view of band spirality dust collecting trough.

Fig. 7 is the housing C-C sectional view of band spirality dust collecting trough.

Fig. 8 is rotor and housing all-in-one-piece plan view.

Fig. 9 is rotor and housing all-in-one-piece side view.

Figure 10 is the plan view of the anti-adverse current bag of rubbery membrana dermalis.

Figure 11 is the plan view of the anti-adverse current bag of rubbery membrana dermalis.

Figure 12 is the side view of the anti-adverse current bag of rubbery membrana dermalis.

Figure 13 is the A-A sectional view of the anti-adverse current bag of rubbery membrana dermalis.

Figure 14 is the B-B sectional view of the anti-adverse current bag of rubbery membrana dermalis.

Main structure is among the figure: shell 1, control of dust conduit 2, rotor 3, bearing 4, axle 5, external passage body 6, drive motor 7, lid 8, collar 9, pressing plate 10, bearing 11, pad 12, nut 13, bearing compressing member 14, dust volute outlet 15, rubbery membrana dermalis is prevented adverse current bag 16, blade 17, gas transmission tube 18, support plate 19, dust volute 20, circular groove 21, flow deflecting cone 22, dust exhausting hole 23.

Below in conjunction with accompanying drawing the utility model is described in detail.

The dynamic air filter of this high-speed rotary, by cylinder type shell 1, install in the enclosure and the rotor 3 that links to each other with axle 5, the support plate 19 and the flow deflecting cone 22 of support drive motor 7 and axle 5, the gas transmission tube 18 of the band dust volute 20 that links to each other with flow deflecting cone, the external passage body 6 that links to each other with shell is formed, the blade 17 of rotor all is a helical, blade is at least six, have control of dust conduit 2 on the outer casing inner wall, the control of dust conduit is a spirality, and the control of dust conduit is no less than three, has at least three circular grooves 21 to join between the control of dust conduit, blade is opposite with the Hand of spiral of control of dust conduit, the helix angle of blade is 15～50 °, and control of dust conduit helix angle is 0～65 °, and the anti-reverse bag 16 of rubbery membrana dermalis is equipped with in dust volute outlet port 15; As shown in Figure 2, air-breathing and when rotating, the air of required purification is entered in the filter cleaner when the outer sending and receiving motivation of blade rotor, air stream has a pressure to fall behind rotation blade, the rotor outlet direction forms negative pressure, be unfavorable for the discharge of dust, this moment can be with the outlet of dust volute vertically downward, and the anti-adverse current bag of rubbery membrana dermalis is installed on mouth, after dust accumulation some, rely on gravity to overcome the epithelium impacting force that negative pressure causes, epithelium is opened, dust is discharged by the epithelium opening.Also can adorn drive motor 7 in the external passage body 6 of high-speed rotative dynamic air filter, by electric power, fluid power or mechanical transmission, modes such as high-speed gas impact obtain power, this moment, dust was collected under action of centrifugal force in the spirality dust collecting trough on the shell inner cavity, move axially to the rotor outlet place and discharge through dust volute, or directly penetrate dust exhausting hole 23 dust discharges on the housing along the spirality dust collecting trough of housing inner chamber, rotor of the present invention is owing to all be made up of helical blade, the length of rotor has shortened greatly, thereby reduced the volume of filter cleaner, reduce cost, thereby directly had the ability that spirality control of dust conduit has improved control of dust on the inner chamber of shell.

Claims

1, a kind of high-speed rotative dynamic air filter, by cylinder type shell 1, be contained in the shell 1 and the rotor 3 that links to each other with axle 5, the support plate 19 and the flow deflecting cone 22 of support drive motor 7 and axle 5, the gas transmission tube 18 of the band dust volute 20 that links to each other with flow deflecting cone 22, the external passage body 6 that links to each other with shell 1 is formed, it is characterized in that: the blade 17 of rotor 3 all is a helical, blade 17 is at least six, have control of dust conduit 2 on shell 1 inwall, control of dust conduit 2 is a spirality, control of dust conduit 2 is no less than three, have at least three circular grooves 21 to join between the control of dust conduit 2, blade 17 is opposite with the Hand of spiral of control of dust conduit 2.

2, high-speed rotative dynamic air filter as claimed in claim 1 is characterized in that: the helix angle of blade 17 is 15 °～50 °, and the helix angle of control of dust conduit 2 is 0 °～65 °.

3, high-speed rotative dynamic air filter as claimed in claim 1 or 2 is characterized in that: dust volute exports 15 places the anti-adverse current bag 16 of rubbery membrana dermalis is housed.

4, high-speed rotative dynamic air filter as claimed in claim 1 or 2 is characterized in that: in the external passage body 6 drive motor 7 is housed.