KR200278302Y1 - Blower filter automatic cleaning device - Google Patents

Abstract

The present invention relates to a blower filter automatic cleaning device installed inside the filter filter is provided to remove the foreign matter of the air sucked into the blower and to rotate the cleaning at the same time to automatically clean the filter,

In the device for cleaning the filter 130, which is installed on the air intake side to filter foreign matter in the air, located in the longitudinal direction in the center of the filter 130 is rotatably mounted to receive compressed air through one side Rotary shaft 10; A plurality of connection pipes having one end fixed to the rotating shaft 10 to receive compressed air and the other end extending to the inner surface portion of the filter 130; And a compressed air injection nozzle connected to an end of the connection pipe 20 and positioned to be spaced apart at a predetermined interval in the longitudinal direction of the filter 130 to provide a rotational force to the rotating shaft 10 with a repulsive force by compressed air injection ( 30); characterized by including.

Description

Blower filter automatic cleaning device

The present invention relates to a device for cleaning a filter equipped to remove foreign substances in the air sucked into the blower, and more particularly, it is provided inside the filter so that it can rotate at the same time while spraying the high pressure air to automatically clean the filter. The blower filter automatic cleaning device.

In general, the blower system has a housing 110 in which a fan 112 is built, as schematically illustrated in FIG. 1, and the fan 112 is disposed inside the housing 110 or outside the housing 110 as shown in the drawing. By rotating the rotational force received by the electric motor 120 is mounted to suck the air through the suction pipe 114 to discharge the air to the discharge pipe 116 side, the discharge pipe 116 is a facility that requires blowing air Is connected to.

Typically, the suction pipe 114 is provided with a filter 130 for removing foreign matter from the air flowing into the housing 110, the filter 130 is to close the suction pipe 114 to block the outside air. It is composed of a porous filter body 132, such as a sponge (sponge), and a wire mesh 134 surrounding the filter body 132, the filter body 132 is generally sucked while inhaling a wider area of air The hollow part 133 is formed to smoothly introduce air to the pipe 114.

That is, when the electric motor 120 is driven, the fan 112 rotates to suck outside air through the suction pipe 114, whereby the outside air passes through the wire mesh 134, whereby bulky material is primarily. As it is filtered, the fine material is filtered while continuously passing through the filter body 132, so that only clean air is discharged to the discharge pipe 116 through the housing 110.

However, in such a filter 130, the foreign matter 136 accumulates in the outer surface part by long time use, which increases the blowing resistance and lowers the blowing efficiency, and the electric motor 120 is unreasonable. It causes the problem of breakage under load.

Therefore, in the related art, the filter 130 has been periodically cleaned or replaced by manual operation as necessary. After stopping the driving of the electric motor 120, the filter 130 is disassembled from the blower and cleaned. Or replace it with a new one.

However, in the case of cleaning or replacing the filter 130 by manual operation, it is necessary to stop the blower equipment, which is not preferable because it causes a decrease in productivity, and also with a steel mill in which dust, dust, metal powder, etc. are mixed. In such a poor environment, the replacement or cleaning of the filter 130 must be made frequently, so wasting manpower was very serious.

The present invention has been made to solve such a conventional problem, the object of which is to clean the filter automatically by installing a nozzle that rotates along the inner surface of the filter while injecting high pressure air from the inner surface of the filter to the outside direction. The present invention provides a blower filter automatic cleaning device.

1 is a configuration diagram schematically showing the filter mounting portion of the blower according to the prior art

Figure 2 is a schematic view showing the filter mounting portion of the blower equipped with an automatic filter cleaning device according to the present invention

3 is a schematic explanatory view showing an example of the connection pipe of the present invention;

Figure 4 is a schematic explanatory diagram showing another example of the heat pipe of the present invention.

Explanation of symbols on the main parts of the drawings

10 ... rotating shaft 12 ... bearing member

20 ... connecting pipe 30 ... compressed air injection nozzle

40 ... header 120 ... electric motor

130 ... Filter

The present invention as a technical configuration for achieving the above object,

In the device for cleaning the filter installed on the air intake side to filter out the foreign matter in the air,

A rotating shaft positioned in a longitudinal direction in the inner center of the filter and rotatably mounted to receive compressed air through one side;

A plurality of connecting pipes having one end fixed to the rotating shaft to receive compressed air and the other end extending to the inner surface of the filter; And,

Blower filter automatic cleaning comprising a; is connected to the end of the connecting pipe is a plurality of predetermined distance apart in the longitudinal direction of the filter and mounted to provide a rotational force to the rotating shaft by the repulsive force by the compressed air injection; By providing a device.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a schematic view showing the filter mounting portion of the blower equipped with the automatic filter cleaning device according to the present invention, Figure 3 is a schematic explanatory view showing an example of the connection pipe of the present invention, The device 1 is installed inside the filter 130 that is installed on the air intake side by the electric motor 120 to filter out foreign substances from the air.

The device 1 of the present invention has a rotating shaft 10 rotatable inside the filter 130, such a rotating shaft 10 is rotatable through the bearing member 12, etc. in the inner surface of the filter 130. Is mounted, and the rotational support point by the bearing member 12 may be both ends or other parts, such a support configuration is known in the art because various aspects that can be easily carried out in the art, detailed description thereof will be avoided. I would like to. However, it is preferable not to impede the flow of air moving toward the suction pipe 114 through the filter 130 by the rotation support components of the rotating shaft 10 by the bearing member 12 (that is, the rotating shaft ( 10, even if one end of the suction pipe 114 is mounted on the suction pipe 114 via the bracket 115 and the bearing member 12, the movement path 115a of the air moving toward the suction pipe 114 through the filter 130 is provided. Must be formed). Of course, the rotation shaft 10 is preferably to match the axial direction of the filter 130 having a circular cross section, even when the filter 130 does not have a circular cross section rotation operation of the compressed air injection nozzle 30 to be described later If it does not collide with the inner surface of the filter 130, it is possible to install the device 1, but the cleaning effect will be reduced compared to the filter 130 having a circular cross section. Hereinafter, the case where the filter 130 has a circular cross section and the rotating shaft 10 is provided in the axial direction is demonstrated.

One end of the rotary shaft 10 is connected to the compressed air supply pipe 14 having a flow control valve or on / off valve 14a to receive compressed air, and the rotary shaft 10 and the compressed air supply pipe 14 ) Connection is made by a conventional rotary joint (16) so as not to interfere with the rotation operation of the rotary shaft (10).

A plurality of connecting pipes 20 are preferably integrally connected to the central portion of the rotating shaft 10 (preferably a plurality of point symmetrical points with respect to the rotating shaft 10, and three or four of them). It extends to the inner surface of the inner surface portion of the coupling pipe 20, by integrally fixing the injection header 40 located in the longitudinal direction of the filter 130 to the end of the connecting pipe 20, compressed air from the connecting shaft (10) It is gathered to the injection header 40 via 20). In addition, the injection header 40 is equipped with a plurality of compressed air injection nozzles 30 to inject compressed air toward the inner surface portion of the filter 130.

An example of the connection configuration of the rotary shaft 10, the connecting pipe 20, the injection header 40 and the injection nozzle 30 is shown in more detail in Figure 3, the rotational force is to be formed on the rotary shaft 10 In order to form the inclination angle θ while the direction A of the compressed air injected from the injection nozzle 30 crosses the reference line C connecting the rotary shaft 10 and the tip of the injection nozzle 30, In this case, when the repulsive force of the compressed air injected from the injection nozzle 30 is F, and the distance between the rotary shaft 10 and the distal end of the injection nozzle 30 is R, the rotational force represented by R x F (cross product) is generated. will be. Of course, the actual rotational force of the rotating shaft 10 will be proportional to the number of injection nozzles 30 installed.

In addition, depending on how to form a path of the compressed air by the connecting pipe 20 connecting the rotating shaft 10 and the injection nozzle 30, the resistance loss due to the transfer of the compressed air can be reduced, the present invention In the present invention, the path is curved, and the connection part with the injection nozzle 30 is proposed to be formed in the same direction as the direction of the compressed air injected through the injection nozzle 30. This has the effect of improving the rotational force and the injection force by minimizing the resistance loss to the compressed air flow injected through the injection nozzle (30).

4 shows another example of the connection configuration of the rotary shaft 10, the connecting pipe 20, the injection header 40 and the injection nozzle 30, connecting the rotary shaft 10 and the injection nozzle 30 It is shown that the path of the compressed air by the connecting pipe 20 to the S-shape, and the connection portion with the injection nozzle 30 is formed in the same direction as the direction of the compressed air injected through the injection nozzle 30 As shown in the description of the injection nozzle 30 shown in FIG. 3, this has the effect of improving the rotational force and the injection force by minimizing the resistance loss to the compressed air flow injected through the injection nozzle.

When the filter 130 is cleaned using the apparatus 1 of the present invention having the above-described configuration, the filter 130 may be cleaned while continuously operating while the blowing facility is in operation, and the blowing facility operates. The filter 130 may be cleaned by operating every predetermined time or when necessary during the medium (or preferably the blower is stopped).

The device 1 of the present invention is automatically operated by supplying the compressed air of the compressed air supply pipe 14 to the injection nozzle 30 through the rotary shaft 10 by opening the on / off valve 14a. The supplied compressed air is injected into the inner surface portion of the filter 130 through the injection nozzle 30, and thus the compressed air is discharged to the outside through the filter body 132 and the wire mesh 134 of the filter 130. The filter 130 is cleaned by removing the foreign substances existing in each of them to the outside.

Of course, the connection pipe 20 including the rotating shaft 10, the injection header 40 and the injection nozzle 30 are integrally rotated by the reaction force, that is, the action and reaction of the compressed air injected through the injection nozzle 30 By this rotation, the entire inner surface of the filter 130 can be cleaned cleanly.

The flow of the compressed air for cleaning according to the present invention is formed to be opposite to the flow direction of air as the blower operates, but the compressed air acts on only a part of the entire inner surface of the filter 130 while the compressed air is supplied to the blower. Because the flow is to block the blower is able to perform a cleaning function without a great influence during the operation, therefore, the filter 130 is to have the maximum filtering effect while always maintaining a clean state.

As described above, according to the blower filter automatic cleaning device according to the present invention, the filter is always cleaned by removing foreign substances that are filtered by the filter by spraying high-pressure air toward the outside of the filter while rotating the inner surface of the filter. Keep state to maximize filtering effect.

In addition, the device of the present invention can be automatically cleaned during operation as well as when the air blowing facility is stopped, thereby improving the operation efficiency of the air blowing facility, as well as eliminating the need for a separate filter cleaning work force, thereby increasing personnel performance. Will also help.

Claims (4)

In the device for cleaning the filter 130, which is installed on the air intake side to filter foreign matter in the air, A rotating shaft 10 positioned in the longitudinal direction in the inner center of the filter 130 and rotatably mounted to receive compressed air through one side thereof; A plurality of connection pipes having one end fixed to the rotating shaft 10 to receive compressed air and the other end extending to the inner surface portion of the filter 130; And, Compressed air injection nozzles (30) connected to the ends of the connecting pipe (20) and positioned to be spaced apart at regular intervals in the longitudinal direction of the filter (130) to provide rotational force to the rotating shaft (10) by the repulsive force by compressed air injection (30). Blower filter automatic cleaning device comprising a. The method of claim 1, The connecting pipe 20 is bent in a curved shape so as to be connected to the compressed air injection nozzle 30 so that the longitudinal direction of the connection portion is matched with the compressed air injection direction by the compressed air injection nozzle 30 Blower filter automatic cleaning device. The method of claim 2, Blower filter automatic cleaning device, characterized in that the connecting pipe 20 is bent in an arc shape. The method of claim 2, Blower filter automatic cleaning device, characterized in that the connecting pipe 20 is bent in an S-shape.