JPH07328480A - Electric dust collector - Google Patents

Abstract

PURPOSE:To provide an electric dust collector low in height and capable of reducing an installation space of a water discharge groove. CONSTITUTION:Since the height of a drain pan 6 can be made low by discharging waste water produced through washing from the plate other than the outer periphery of the drain pan 6, while an inclination of the drain pan 6 required for discharge of the waste water is kept, the dimension of the height of the electric dust collector 1 can be reduced and, since the water discharge groove can be formed at the lower part of the electric dust collector 1, the installation space of the water discharge groove can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric dust collector that captures and purifies dust in the air.

[0002]

2. Description of the Related Art In recent years, electric dust collectors installed as ventilation equipment for road tunnels have come to be installed in a narrow and limited space such as the ceiling of a roadway. Therefore, reduction of height and installation space are required. Is required to be reduced.

The structure of a conventional electrostatic precipitator of this type will be described with reference to FIGS. Case 101
Is the channel base 1 that creates the levelness of the mounting surface
It is fixed to the mount 103 via 02. Case 101
A dust collection unit 104 is housed inside the. A cleaning device 105 is arranged on the inflow side and the outflow side of the dust-containing air of the dust collecting unit 104. A drain pan 106 is provided in the lower part of the housing 101, and the drain pan 106 is provided with a minimum gradient H / D necessary for drainage discharge from the dust-containing air inflow side to the outflow side or from the outflow side to the inflow side. ing. Where H is drain pan 1
A height dimension of 06, and D is a depth dimension of the drain pan 106. A drain port 107 is provided at the lowest part of the outer periphery of the drain pan 106 on the dust-containing air outflow side or the inflow side of the housing 101. Below the drainage port 107, there is a drainage groove 108 or a drainage duct 109 formed in the mount 103.

In the above structure, the dust collecting unit 104
The dust captured in (3) is regularly washed off by the cleaning device 105. Drainage generated by cleaning falls on the drain pan 106 and is collected at the drainage port 107 to form the drainage groove 1
08 or will be discharged to the drainage duct 109.

[0005]

In such a conventional electrostatic precipitator, as shown in FIG. 5, the drainage is provided at the bottom of the outer periphery of the drain pan on the dust-containing air outflow side or the inflow side of the housing. From the mouth, it was discharged to the drainage ditch made on the pedestal. Further, in the case where a drainage groove cannot be formed on the gantry, it was discharged to the drainage duct as shown in FIG. For this reason, when the drain pan was provided with a gradient necessary for drainage discharge, the height of the drain pan increased, and the height of the electrostatic precipitator increased accordingly. At this time, if the wall surface above the tunnel interferes with the electrostatic precipitator, the tunnel must be widened in order to secure the processing air volume of the electrostatic precipitator necessary for ventilation, which increases the civil engineering cost. Had.

Further, there is a problem that the installation space for the drainage groove and the drainage duct is required, and the mount for supporting the electrostatic precipitator becomes large accordingly, resulting in an increase in construction cost.

The present invention solves such a problem, and a first object thereof is to reduce the height dimension of the electrostatic precipitator and the installation space of the drainage groove.

A second object is to reduce the height dimension of the electrostatic precipitator and to reduce the installation space of the drainage duct when the drainage groove cannot be formed on the mount and the drainage is performed by the drainage duct. is there.

[0009]

A first means for achieving the first object of the present invention is to provide an electrostatic precipitator having a drainage port for discharging drainage generated by cleaning from a portion other than the outer periphery of the drain pan. It is configured.

A second means for achieving the second object is a drainage port for discharging drainage generated by cleaning from a portion other than the outer periphery of the drain pan, and a drainage duct integrated with a channel base under the drainage port. The configuration of the electric dust collector is provided with.

[0011]

According to the present invention, by the constitution of the above-mentioned first means, the height of the drain pan can be lowered while maintaining the drain pan gradient required for drainage discharge, and accordingly, the height of the electrostatic precipitator can be reduced. In addition to being able to lower the height, a drain can be created in the lower part of the electrostatic precipitator, and the installation space for the drain can be reduced.

Further, when the drainage groove cannot be formed in the gantry and the drainage duct is used to drain the water due to the structure of the second means, the channel base and the drainage duct are integrated, so that it is necessary for drainage drainage. It is possible to lower the height of the drain pan while maintaining the proper drain pan gradient, which can lower the height of the electrostatic precipitator and reduce the installation space for the drainage duct. is there.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. The housing 1 is fixed to a pedestal 3 via a channel base 2a that creates the levelness of the installation surface. A dust collecting unit 4 is housed inside the housing 1. A cleaning device 5 is disposed on the dust-containing air inflow side and the dust-containing air inflow side of the dust collection unit 4. A drain pan 6 is provided below the housing 1, and the drain pan 6 has a gradient of (1/2) H / (1/2) D = H / D from the outer periphery to the center thereof. Here, H is the height dimension of the drain pan 106 of the conventional electrostatic precipitator, and D is the depth dimension of the drain pan 106 of the conventional electrostatic precipitator. At the center of the drain pan 6 which is the lowermost part of the drain pan 6, there is a drainage port 7 for draining drainage, and below that is a drainage groove 8.

With the above structure, the dust collected by the dust collecting unit 4 is regularly washed off by the washing device 5. The waste water generated by cleaning falls on the drain pan 6, is collected in the drain port 7, and can be discharged to the drain groove 9.

As described above, according to the electrostatic precipitator of the first embodiment of the present invention, the height of the drain pan can be reduced by half while maintaining the gradient of the drain pan required for drainage discharge. Since the height of the dust collector can be reduced and the drain can be formed in the lower part of the electric dust collector, the installation space for the drain can be reduced.

Next, a second embodiment of the present invention will be described with reference to FIGS. The configurations of the housing 1, the gantry 3, the dust collecting unit 4, the cleaning device 5, the drain pan 6, and the drainage port 7 are the same as those in FIGS. Drainage port 7
Underneath, there is a drainage duct 9 integrally formed with the channel base 2b by welding, bolting or the like.

With the above structure, the drainage collected in the drainage port 7 can be discharged to the drainage duct 9 formed integrally with the channel base 2b.

As described above, according to the electric dust collector of the second embodiment of the present invention, since the channel base and the drainage duct are integrated, the drainage groove cannot be formed in the mount and the drainage is performed by the drainage duct. Even in such a case, the installation space for the drainage duct can be reduced.

In the embodiment, the lowermost part of the drain pan is located at the center of the drain pan, and the drainage port for discharging the drainage is provided there. However, depending on the convenience of the drainage groove and the drainage duct, the lowermost part of the drain pan may be used. There may be cases where it cannot be placed in the center of the drain pan. In this case, the height of the drain pan cannot be reduced by half, but the height of the drain pan can be made lower than in the past, and there is no difference in the effect that the height of the electrostatic precipitator can be lowered accordingly. .

[0020]

As is apparent from the above description of the embodiments, according to the present invention, drainage generated by cleaning is discharged from a portion other than the outer periphery of the drain pan, so that the gradient of the drain pan required for drainage discharge is maintained. Since the height of the drain pan can be lowered as it is, the height dimension of the electrostatic precipitator can be reduced, and a drain groove can be created at the bottom of the electrostatic precipitator, which saves space for installing the drain groove. It is possible to provide an electric dust collector having an effect of reducing the amount.

Further, since the drainage duct and the channel base are integrated, the drainage can not be formed in the gantry, and when drainage is performed by the drainage duct, the drainage generated by cleaning is drained from other than the outer periphery of the drain pan. As a result, the height of the drain pan can be reduced while maintaining the gradient of the drain pan required for drainage drainage, so the height dimension can be reduced and the installation space for the drainage duct can be reduced. It is possible to provide an effective electric dust collector.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an electrostatic precipitator according to a first embodiment of the present invention.

FIG. 2 is a top view of the same.

FIG. 3 is a vertical sectional view of an electric dust collector according to a second embodiment of the present invention.

FIG. 4 is a top view of the same.

FIG. 5 is a vertical sectional view of a conventional electrostatic precipitator.

FIG. 6 is a top view of the same.

FIG. 7 is a vertical sectional view of a conventional electrostatic precipitator.

FIG. 8 is a top view of the same.

[Explanation of symbols]

 1, 101 Housing 2a, 2b, 102 Channel base 3, 103 Frame 4, 104 Dust collection unit 5, 105 Cleaning device 6, 106 Drain pan 7, 107 Drainage port 8, 108 Drainage groove 9, 109 Drainage duct

Claims (2)

[Claims] 1. A dust collecting unit, a cleaning device for washing off dust adhering to the dust collecting unit, a drain pan for guiding the drainage generated and dropped by the cleaning to a drain port, and an electric device provided with the drain port other than the outer periphery of the drain pan. Dust collector. 2. The electric dust collector according to claim 1, further comprising a drain duct integrated with the channel base below the drain port.