JPH0623219A - Dust collector - Google Patents

Abstract

PURPOSE:To efficiently collect dust in a large space by a compact device. CONSTITUTION:The device is provided with plural precleaners 1 which separate the dust in gas, bag filters which are successively provided with each of precleaners 1, plural suction blowers 3 transporting under pressure into the bag filters which are successively provided with other precleaners 1 by sucking the dust separated by the precleaners 1, and one mixed flow fan sucking the gas in which the dust has been removed with plural precleaners 1 and discharging it outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting apparatus for dust in gas such as environmental improvement products.

[0002]

2. Description of the Related Art There has never been a dust collector in which a mixed flow fan that generates a large static pressure with a large air volume is arranged to make the whole compact and lightweight.

[0003]

DISCLOSURE OF THE INVENTION The dust collector of the present invention is
The present invention aims to solve the following problems in a dust collector as a conventional environment-improving product.

The problems are as follows: (1) Even if the dust collecting device is brought into a wide space such as a building interior remodeling work because of its low dust collecting ability, the dust collecting effect is close to the dust collecting device. It was only around. (2) When the air volume is increased, the external dimensions and weight of the device become large, which makes it difficult to move or install the device. (3) If the collected dust is released to the atmosphere, it causes environmental pollution and has many problems. (4) The wind noise of the air is high and the noise is loud.

The present invention is intended to provide a dust collecting apparatus which solves the above drawbacks.

[0006]

A dust collector according to the present invention comprises a plurality of precleaners for separating dust in a gas, a plurality of bag filters connected to each of the plurality of precleaners, and the precleaner. A plurality of suction blowers for sucking the separated dust and forcing it into a bag filter connected to another precleaner, and a gas for which the dust is separated by the plurality of precleaners is discharged to the outside 1 It is characterized by having a basic mixed flow fan.

[0007]

In the present invention, the dust separated from the gas by each of the plurality of precleaners is sucked by the suction blower, pumped into the bag filter connected to another precleaner, and captured by the bag filter. It In this case, since the suction blower sends dust from one precleaner to the bag filter connected to the other precleaner, the gas flow containing dust is not disturbed, and efficient dust pressure feeding is possible. Is done.

The clean gas from which dust has been separated in each precleaner is sucked from the precleaner and discharged to the outside by one mixed flow fan capable of generating a large static pressure with a large air flow. Therefore, the dust collecting action can be increased, and dust can be collected in a wide space with a small device.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS.

Reference numeral 1 is a precleaner, 2 is a bag filter connected to the lower part of the precleaner 1, and the precleaner 1
As shown in FIG. 1, two sets of a bag filter 2 and a bag filter 2 are horizontally arranged in parallel with each other with an intermediate space.

The precleaner 1 is a casing 1 thereof.
A large number of outlet tubes 1b arranged in the vertical direction are arranged in the e, and the lower end of the outlet tube 1b is located at the bottom of the casing 1e of the precleaner 1 through the opening of the separation plate 1f at the bottom of the precleaner 1. It communicates with the chamber 1g (see FIG. 4). Further, on the upper part of the outlet tube 1b, there is provided a swirl vane 1a for centrifugally separating the dust toward the outer periphery of the outlet tube 1b by its rotation.

Reference numeral 3 denotes a suction blower which is arranged on the side of the precleaner 1 and whose suction side is connected to the inside of the precleaner 1 through an inlet duct 5. The suction blower 3 of the cleaner 1 is
As shown in FIGS. 1 and 2, they are located on opposite sides of each other. As shown in FIG. 1, the suction side of the suction blower 3 of one precleaner 1 communicates with a bag filter 2 connected to the other precleaner 1 via an outlet duct 6 as shown in FIG. As shown in FIGS. 1 and 2, the inlet duct 5 has an L-shape extending horizontally from the precleaner 1 in a lateral direction thereof and bent at a substantially right angle, and is connected to a central portion of the suction blower 2. The inlet duct 6 extends toward the bag filter 2 in the lateral direction of the upper bag filter 2 that extends obliquely downward from the swirl chamber around the suction blower 3 toward the bag filter 2 side and opens in the bag filter 2. is doing.

As shown in FIG. 3, the chambers 1g of the two precleaners 1 house the bag filters 2 and 2 and the bag filters 2 and 2 in the lower casing 10 in which the precleaners 1 and 1 are mounted. Of the mixed flow fan 4 is built in the lower casing 10, and the exhaust air of the mixed flow fan 4 is discharged to the outside of the lower casing 10 through the side opening of the lower casing 10. It is like this.

The bag filter 2 includes a lower casing 2
It is housed so that it can be taken out sideways,
Reference numeral 2a in FIG. 1 indicates a take-out position of the bag filter 2.

In this embodiment, the mixed flow fan 4 sucks the air outside the apparatus through the precleaner 1. At this time, the swirl vane 1a of the outlet tube 1b of the precleaner 1
By the rotation of, the dust 1c is centrifuged outward around the outlet tube 1b as shown by the arrow in FIG. In this way, the clean air 1d from which the dust has been separated passes through the outlet tube 1b as shown in FIG.
After passing through g, it enters the lower casing 10, is sucked by the mixed flow fan 4 through the intermediate portion of the bag filters 2 and 2, and the clean air 4a is discharged to the outside of the lower casing 1 as shown by the arrow in FIG. Is released.

The dust 1c separated by the swirl vanes 1a of the outlet tube 1b of the precleaner 1 is sucked by the suction blower 3 together with air through the inlet duct 5.
The dust and air are pressure-fed from the suction blower 3 into the bag filter 2 through the outlet duct 6, the dust is captured by the bag filter 2, and the clean air 2b passing through the bag filter 2 is
As indicated by the arrow in FIG. 3, the mixed flow is sucked by the mixed flow fan 4 and then discharged to the outside of the lower casing 10.

As described above, in the present embodiment, the mixed flow fan 4 capable of generating a large air flow and a large static pressure sucks the air outside the apparatus through the precleaner 1 and cleans it outside the upper apparatus. Since the air is discharged, a large amount of air can be cleaned and blown out to the outside vigorously, and efficient dust collection in a wide space can be performed.

Further, the outlet tube 1b of the precleaner 1
Since the dust 1c separated in 1 is pressure-fed to the upper bag filter 2 which is sucked by the suction blower 3 as described above, the dust 1c is reliably captured by the bag filter 2. Moreover, since the swirl chamber around the suction blower 2 in which the central inlet side is connected to one of the precleaners 1 is connected to the bag filter 2 connected to the other precleaner 1, the swirl chamber is connected to the precleaner 1. As shown in FIG. 2, the precleaner 1 and the bag filter 2 which are connected via the suction blower 2 are located in close proximity to each other, and the inlet duct 5 and the outlet duct 6 are also arranged so that there is no air turbulence. It is possible,
Even if the suction blower 3 is downsized, the rated air volume and suction negative pressure can be comfortably applied, and the air can be rectified to effectively send dust to the bag filter 2.

Further, as described above, the bag filter 2
The air 2b from which the dust is separated is sucked by the mixed flow fan 4 and discharged to the outside, and the amount of air forcedly discharged by the mixed flow fan 4 increases.

The dust captured by the bag filter 2 is
The bag filter 2 can be taken out to the position indicated by 2a in FIG. 1 at appropriate times, and the bag can be discarded together with the bag.

In the above embodiment, two sets of the precleaner 1 and the bag filter 2 connected to the precleaner are used, but in the present invention, three or more sets may be used. . For example, in the case of using three sets, as shown in FIG. 5, three sets of the precleaner 1 and the bag filter 2 connected to the lower part of the precleaner are arranged in a triangle, and suction is applied to each vertex of the triangle. The blower 3 is arranged, and one mixed flow fan is arranged inside the triangle.
Even when four or more sets of precleaners and bag filters are used, they are similarly arranged in a polygon, and one mixed flow fan is arranged in this polygon.

[0022]

Since the present invention has the structure described in the claims, the following effects can be obtained. (1) Since the dust is separated by the precleaner and sucked by the upper suction blower and trapped by the bag filter, the dust trapping efficiency can be increased. (2) Due to the large air volume generated by the mixed-flow fan and the large static pressure, only clean gas separated from dust can be vigorously discharged, so that gas containing dust in a large space can be forced to convection, and a large space can be obtained. The dust can be effectively collected. (3) A plurality of precleaners, a plurality of bag filters connected to each of the precleaners, and a plurality of suction filters for sucking dust separated by the precleaner into a bag filter connected to another precleaner. Since the suction blower and the one mixed-flow fan are arranged, the external dimensions are small, and the device can be made lightweight.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a front view of the embodiment.

FIG. 3 is a side view of the embodiment.

FIG. 4 is an operation explanatory view of the precleaner of the same embodiment.

FIG. 5 is an explanatory diagram of an arrangement example of a precleaner, a bag filter, and a suction blower according to the present invention, which is different from the above embodiment.

[Explanation of symbols]

 1 Precleaner 1a Swirling blade 1b Outlet tube 1c Dust 1d Clean air 1f Separator 1g Chamber 2 Bag filter 2b Clean air 3 Suction blower 4 Mixed flow fan 5 Inlet duct 6 Outlet duct 10 Lower casing

Claims (1)

[Claims] 1. A plurality of precleaners for separating dust in a gas, a plurality of bag filters connected to each of the plurality of precleaners, and another precleaner for sucking the dust separated by the precleaner. A plurality of suction blowers that are pressure-fed into the bag filter, and one mixed-flow fan that sucks gas from which dust has been separated by the plurality of precleaners and discharges the gas to the outside. Dust collector.