JP3484163B2 - Filter regeneration and activation device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for removing dust from a used particle removal filter to regenerate the filter, and a device for regularly removing dust from a used particle removal filter to activate the filter. The present invention relates to a device for converting the same into a filter with an outer frame used particularly for air conditioning.

[0002]

2. Description of the Related Art A general particle removal filter does not have a function for removing dust trapped during use. Therefore, when the pressure loss reaches about 500 Pa, the filtering effect is lost and the filter is discarded. Has been disposed of. As a means for regenerating the filter, backwashing by a method such as pulse jet (compressed air blowing) is also performed, but the removal effect by backwashing is limited and pressure loss has not been recovered. Further, when applied to a framed filter having a pleated filter medium, the folded filter medium receives compressed air and expands and deforms, which makes it difficult to remove dust, and may damage the filter medium. .

A device for removing a dust by attaching a vibration generating member to a dust collecting storage body and resonating the filter through a supporting frame of the bag filter is used in "Bag filter brushing device" of Japanese Utility Model Publication No. 59-131220. Is listed. Since this device vibrates the bottom part of the filter, it is suitable for a bag filter, but if it is applied to a general framed filter, the connecting part between the filter medium and the outer frame may be damaged. In addition, it cannot be applied to applications in which dust is periodically removed from a particle removal filter in use to activate the filter.

[0004]

SUMMARY OF THE INVENTION A first object of the present invention is to provide an apparatus for removing dust from a used particle removal filter to regenerate the filter. A second object of the present invention is to provide an apparatus for periodically removing dust from a particle removal filter in use to activate the filter.

[0005]

According to a first aspect of the present invention, there is provided a filter regenerating apparatus which is used for removing dust captured from a filter composed of a filter medium and an outer frame for containing the filter medium for regeneration. a filter regeneration device comprises a vibration mechanism mounted on the upper surface or the side surface of the outer frame of the filter, and a vibration isolating mechanism of the air spring or the like for supporting the outer frame or the vibration mechanism of a filter, the vibration The mechanism has a frequency of 40-
Resonating filter media by changing within 200Hz range
The outer frame is a filter medium.
Vertically stretched so that dust adhering to the
By resonating the filter medium of the filter, dust adhering to the filter medium is dropped vertically to be removed.

As the air spring, a well-known product called a tube seal, which utilizes the elastic force of air enclosed in an annular rubber such as a tire tube, can be used. A vibration motor driven by an electric motor or a vibrator of pneumatic type can be used as the vibration mechanism. The vibration motor is a 2-pole or 4-pole 3-phase induction motor,
Alternatively, each of the two ends of the rotor of the single-phase induction motor has two
This is a well-known mechanism in which fan-shaped eccentric cones (furiko) are attached one by one, and a strong centrifugal vibration is generated by the rotation thereof. The pneumatic ball vibrator is a well-known mechanism in which a steel ball is rotated at high speed by the injected compressed air to generate strong centrifugal force vibration.The frequency and centrifugal force can be freely changed only by operating the pneumatic pressure. You can A pneumatic piston vibrator can also be used.

[0007]

Operation: Vibration is 40 to 200 Hz from the outside of the filter frame
Try to give in degree. As a result, the dust adhering to the filter medium is removed. Change the vibration frequency and
By causing the resonance , the dust can be removed more effectively. In this filter regenerator, the outer frame of the filter is vibration-isolated and supported by an air spring (air tube), so even if vibration is applied, the vibration is transmitted from the outer frame to the outside.
As a result , the connecting portion with the filter medium is not damaged, and the dust adhering to the filter medium can be effectively removed.

As a second aspect, the present invention is a filter activating device for activating the filter by removing the dust captured by the filter medium of the filter arranged in the air duct at every predetermined time. An anti-vibration mechanism such as an air spring that supports the bottom surface of the outer frame of the filter, a dust storage chamber that supports the anti-vibration mechanism, a dust tray disposed at the bottom of the dust storage chamber, and an outer frame of the filter. The vibration mechanism attached to the upper surface or side surface of the is arranged in the air duct,
The vibration mechanism has a frequency within a range of 40 to 200 Hz.
The filter media of the filter can be resonated by changing with
The outer frame is designed to remove dust adhering to the filter media.
The filter is stretched vertically to facilitate lowering
By resonating the filter media, the dust adhering to the filter media becomes vertical.
Provided is a filter activating device which is dropped in a direction to be removed, accommodated in the dust receiving tray, and taken out to the outside.

According to this filter activation device, dust can be effectively removed by periodically applying vibration without removing the filter in use arranged in the air duct, so that maintenance of the filter can be performed. This facilitates the work, makes the work easier, and significantly reduces the cost required for maintenance and inspection. Hereinafter, preferred embodiments according to the present invention will be described with reference to the accompanying drawings.

[0010]

1 shows a filter regenerating apparatus 10 according to a first aspect of the present invention, which is captured from a filter 20 consisting of a filter medium 22 and an outer frame 24 containing the filter medium. This is a used filter regenerating device for removing and regenerating the dust F. The device 10 includes a vibration isolation mechanism 12 that supports the bottom surface of the outer frame 24 of the filter 20, a dust container 14 that supports the vibration isolation mechanism 12, and a filter retainer 17 on the upper surface of the outer frame 24 of the filter 20. And a vibrating mechanism 16 attached thereto.

At the bottom of the dust storage box 14, there is disposed a dust receiving tray 15 which can be pulled out in a sliding manner. The vibration isolation mechanism 12 is made of an air spring structure in which pressurized air is sent from the compressed air source 30 through the valve 32 and the pipe 34. In addition to the air springs, metal springs and anti-vibration rubber can be used, but the natural frequencies of the air springs are 1 to 4
Hz, metal spring 2-10Hz, anti-vibration rubber 5-20H
z, and the vibration-proof performance of the air spring is excellent.

The vibration mechanism 16 is composed of a vibration motor driven by an electric motor, a pneumatic ball vibrator, or a piston vibrator. The vibration frequency is controlled by inverter control in the case of a vibration motor (50/60 Hz) and by air pressure supplied in the case of a pneumatic vibrator. The standard is the case of a ball vibrator, 100-
200Hz, 60-100Hz with piston vibrator
It is a degree. Thus, the vibrating mechanism 16 vibrates the filter medium 22 of the filter 20 so that the dust F attached to the filter medium 22 falls into the lower tray 15 and is removed.

FIG. 2 shows a filter activation device 40 according to a second aspect of the present invention, which device 40 comprises dust trapped by a filter medium 22 of a filter 20 arranged in the middle of an air duct 50, 52. It is a filter activation device for activating the filter by removing F every predetermined time. The device 40 includes a vibration isolation mechanism 42 such as an air spring that supports the bottom surface of the outer frame 24 of the filter 20 via a filter receiver 43, and a dust storage chamber 44 that supports the vibration isolation mechanism 42.
A dust tray 45 arranged at the bottom of the dust storage chamber 44,
The vibration mechanism 48 attached to the side surface of the outer frame 24 of the filter 20 is housed in the housing duct 41 and is inserted as an integral unit between the air ducts 50 and 52.

The connection with the air ducts 50, 52 is made by connecting the flanges 41a, 4 at the ends of the housing duct 41, respectively.
It is performed by a method such as bolting at 1b. A seal member 47 is attached to the cylindrical inner peripheral surface of the filter receiver 43, and has a structure that prevents air from leaking from around the outer frame 24 of the filter 20 without passing through the filter.

FIG. 2 shows a state in which the activation operation of the filter medium is performed in the activation device 40 of the present invention.
Since the compressed air is injected into the filter 2, the filter 20 has a height H.
Only in the elevated activated position. When the activation work of the filter medium is completed, the filter 20 is discharged by discharging compressed air.
Is lowered by a height H, and the filter receiver 43 is stopped by the stopper 49.
Abuts on the upper surface of and stops. Thus, the vibrating mechanism 48 is activated to vibrate the filter medium 22 of the filter 20 to remove the dust F adhering to the filter medium, store it in the dust receiving tray 45, and take it out to the outside.

[0016]

As described in detail above, according to the filter regenerating apparatus of the present invention, by applying vibration from the outside of the filter frame, dust adhering to the filter medium is wiped off and effectively removed. Since the outer frame of the filter is vibration-proof supported by an air spring or the like, the connecting portion between the outer frame and the filter medium will not be damaged even if vibration is applied. Further, according to the filter activation device of the present invention, since it is possible to effectively remove dust by applying vibration periodically without removing the filter in use arranged in the air duct,
The technical effect of the filter is extremely remarkable, for example, the maintenance of the filter becomes easy, the work becomes easy, and the cost required for maintenance and inspection is greatly reduced.

[Brief description of drawings]

FIG. 1 is a schematic vertical cross-sectional view showing the entire filter regeneration device according to the present invention.

FIG. 2 is a schematic vertical sectional view showing the entire filter activation device according to the present invention.

[Explanation of symbols]

10 Filter regeneration device 12,42 Anti-vibration mechanism 14 Dust storage box 15,45 dust pan 16,48 Excitation mechanism 20 filters 22 Filter media 24 outer frame 30 compressed air source 40 Filter activation device 41 housing duct 44 Dust storage room 50,52 duct

─────────────────────────────────────────────────── ───Continued from the front page (56) References JP-A-61-227814 (JP, A) JP-A-59-183721 (JP, A) JP-A-9-57035 (JP, A) Actual development Sho-58- 23616 (JP, U) Actually open 60-35727 (JP, U) Actually open 59-131220 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B01D 46/42

Claims (2)

(57) [Claims] 1. A used filter regenerating device for removing dust captured from a filter constituted by a filter medium and an outer frame for housing the filter medium and regenerating the filter, the filter regenerating device being mounted on an upper surface or a side surface of an outer frame of the filter. And a vibration-proof mechanism such as an air spring that supports the vibration mechanism or the outer frame of the filter, and the vibration mechanism has a frequency within a range of 40 to 200 Hz.
The filter media of the filter can be resonated by changing with
The outer frame is made of lead so that dust adhering to the filter medium may easily fall off.
A filter regenerator which is stretched in the vertical direction and is characterized in that the filter material of the filter is caused to resonate so that dust adhering to the filter material is dropped in the vertical direction to be removed. 2. A filter activation device for activating a filter by removing dust captured by a filter medium of a filter arranged in an air duct at predetermined time intervals, the bottom surface of an outer frame of the filter being provided. An anti-vibration mechanism such as an air spring to support, a dust storage chamber that supports the anti-vibration mechanism, a dust pan that is arranged at the bottom of the dust storage chamber, and a filter attached to the top or side of the outer frame of the filter. A vibration mechanism is arranged in the air duct, and the vibration mechanism has a frequency within a range of 40 to 200 Hz.
The filter media of the filter can be resonated by changing with
The outer frame is made of lead so that dust adhering to the filter medium may easily fall off.
A filter activating device which is stretched in a vertical direction, and in which dust adhering to a filter medium is dropped in a vertical direction by a resonance of a filter medium of the filter to be removed, and the dust is accommodated in the dust tray and taken out to the outside.