CN1059852A - High-speed rotative dynamic air filter - Google Patents

Abstract

A high-speed rotary dynamic air filter consists of a cylindrical shell, a rotor installed in the shell and connected to the shaft, a support piece supporting the drive shaft, a diversion cone, and a dust-collecting volute connected to the diversion cone. The air delivery cylinder is composed of an external channel body connected with the shell, the rotor is all composed of spiral blades, and the inner wall of the shell is provided with a spiral dust collection channel. This filter not only has high filtration efficiency, but also has small volume and simple structure, and is an advanced air filter.

Description

The present invention is an air cleaner used for general vehicle and military vehicle engine, which can be used to purify the air used by the engine.

At present, general vehicles and military vehicles have very strict technical requirements on the filtration efficiency of the air filter and the size of the filtered dust. The US-4832709 and US-4255174 in the prior art use cyclone Separate type, the former is mainly composed of the shell, the rotor and the external channel body, the rotor is a combination of front and rear guide vanes and straight blades, the straight blades of this rotor make the rotor length under the same filtration efficiency Greatly increased, thus increasing the size of the filter and increasing the cost, and the dust collection device is an annular garden groove opened in the casing, the dust collection effect is poor, and the outer edge of the rotor used to reduce the secondary airflow loss The method of upper fine wire increases the complexity of the process. The blades of the latter do not rotate, so when the airflow is vortexed, the flow loss is relatively large.

The purpose of the present invention is to overcome the deficiencies of existing filters and provide a rotary dynamic air filter with high-speed rotating blades. It is thrown to the edge of the blade at high speed, collected by the spiral dust collecting groove on the shell, and led to the outside of the shell. The filtered air is output to the filter along the rotor axis, which greatly improves the air filtration efficiency and reduces the dust. The size of the filtered dust. And reduce the aerodynamic loss when the gas flows.

This kind of filter not only has high filtration efficiency but also small size, simple structure, less energy loss when the gas is filtered, easy product serialization, convenient installation on the engine, and the installation of the filter has great influence on the performance of the engine. The impact is small, and it has strong self-purification ability, so the maintenance period of the filter is greatly extended.

Concrete structure of the present invention is provided by accompanying drawing 1,2,3,4,5,6,7,8,9,10,11,12,13,14.

Figure 1 is a working principle diagram of a high-speed rotary dynamic air filter.

Figure 2 is a structural diagram of a high-speed rotating dynamic air filter.

Figure 3 is a structural diagram of a high-speed rotating dynamic air filter with a drive motor.

Figure 4 is a front view of the helical blade rotor.

Figure 5 is a side view of the helical blade rotor.

Fig. 6 is a front view of the housing with a spiral dust collecting groove.

Fig. 7 is a C-C cross-sectional view of the housing with a spiral dust collecting groove.

Fig. 8 is a front view of the integral body of the rotor and the housing.

Fig. 9 is a side view of the rotor integrated with the housing.

Fig. 10 is a front view of a rubber film anti-reflux bag.

Fig. 11 is a top view of a rubber film anti-reflux bag.

Fig. 12 is a side view of a rubber film anti-reflux bag.

Fig. 13 is an A-A sectional view of a rubber film anti-reflux bag.

Fig. 14 is a B-B sectional view of the rubber membrane anti-reflux bag.

The main structure in the figure is: shell 1, dust collection channel 2, rotor 3, bearing 4, shaft 5, external channel body 6, drive motor 7, cover 8, collar 9, pressure plate 10, bearing 11, gasket 12, Nut 13, bearing pressing part 14, dust collection volute outlet 15, rubber film anti-backflow bag 16, blade 17, air delivery cylinder 18, support sheet 19, dust collection volute 20, annular groove 21, diversion cone 22, row Dust hole 23.

The present invention will be described in detail below in conjunction with the accompanying drawings.

This high-speed rotary dynamic air filter consists of a cylindrical shell 1, a rotor 3 installed in the shell and connected to the shaft 5, a support piece 19 and a guide cone 22 for supporting the drive motor 7 and the shaft 5, and The air delivery cylinder 18 with the dust collection volute 20 connected with the diversion cone is composed of the external channel body 6 connected with the casing. The blades 17 of the rotor are all helical, and the blades are at least six pieces. There is a dust collection channel on the inner wall of the casing. 2. The dust-collecting channels are helical, and there are no less than three dust-collecting channels. There are at least three annular grooves 21 connected between the dust-collecting channels. The spiral direction of the blade and the dust-collecting channel is opposite. 15 to 50°, the helix angle of the dust collection channel is 0 to 65°, and the dust collection volute outlet 15 is equipped with a rubber film anti-reverse bag 16; as shown in Figure 2, when the blade rotor is inhaled by an external engine At this time, the air to be purified enters the filter, and there is a pressure drop after the air flows through the rotating blades, and a negative pressure is formed in the direction of the rotor outlet, which is not conducive to the discharge of dust. At this time, the outlet of the dust collecting volute can be vertically downward , and install a rubber film anti-reflux bag on the mouth. When the dust accumulates a certain amount, rely on gravity to overcome the film compression force caused by the negative pressure, so that the film opens, and the dust is discharged from the opening of the film. The external channel body 6 of the high-speed rotary dynamic air filter can also be equipped with a driving motor 7, which is powered by electric, hydraulic or mechanical transmission, high-speed gas impact, etc. At this time, dust is collected in the shell under the action of centrifugal force In the spiral dust collection groove on the inner cavity, move axially to the rotor exit and discharge through the dust collection volute, or directly penetrate the dust discharge hole 23 on the casing along the spiral dust collection groove in the inner cavity of the casing to discharge dust , because the rotor of the present invention is all composed of helical blades, the length of the rotor is greatly shortened, thereby reducing the volume of the filter and reducing the cost. The ability to collect dust.

Claims (4)

1. A high-speed rotary dynamic air filter, consisting of a cylindrical shell 1, a rotor 3 installed in the shell 1 and connected to the shaft 5, a support piece 19 supporting the drive motor 7 and the shaft 5, and a guide cone 22 1. An air supply cylinder 18 with a dust collection volute 20 connected to the diversion cone 22, and an external channel body 6 connected to the casing 1. It is characterized in that: the blades 17 of the rotor 3 are all helical, and the blades 17 are at least six pieces , there are dust collection channels 2 on the inner wall of the shell 1, the dust collection channels 2 are spiral, there are no less than three dust collection channels 2, at least three annular grooves 21 are connected between the dust collection channels 2, and the blades 17 It is opposite to the spiral direction of the dust collection channel 2. 2. The high-speed rotary dynamic air filter according to claim 1, characterized in that: the helix angle of the blade 17 is 15°-50°, and the helix angle of the dust collection channel 2 is 0°-65°. 3. The high-speed rotary dynamic air filter according to claim 1, 2, characterized in that: a rubber film anti-backflow bag 16 is installed at the outlet 15 of the dust collection volute. 4. The high-speed rotary dynamic air filter according to claims 1 and 2, characterized in that: the external channel body 6 is equipped with a drive motor 7 .

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