JP2808098B2 - chimney. Soot removal and recovery equipment in the flue system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soot, dust and soot stack. A chimney that removes and collects a soot and dust layer formed in a cracked state that accumulates on the inner surface of the flue and is easily fragmented. The present invention relates to a device for removing and collecting soot in a flue system.

[0002]

2. Description of the Related Art Smoke generated by burning fuel refers to a situation in which unburned fine coal powder grows as soot and floats on a combustion gas, and the soot scatters from a chimney. It adheres to laundry, tableware, food and drink, and becomes polluted, and is disliked by nearby residents and causes trouble. In urban areas where the population is dense, it is harmful to public health. As a countermeasure, a large dust removing device is installed in the main flue system at or near the ground, or a small and light dust removing device is provided at the tip of the chimney. However, in the latter case, the efficiency of collecting soot and dust is inferior. In the case of the former large-sized dust removal device, a huge number of supporting columns and frames are required to attach it to the end of the chimney. The equipment cost is high and maintenance such as cleaning of collected dust and soot is difficult, and this large-sized dust removal apparatus is usually set on the ground.

[0003]

However, on the chimney side ahead of this large-sized dust removing device, soot that could not be removed by this dust removing device accumulates on the inner surface of the stack and the chimney to form a soot dust film layer. . In a normal operation in which the operation is performed only in the daytime, the adhesion portion is cracked in the soot film layer due to cooling at night when the operation is stopped, and the dust film layer is easily scattered by a slight wind pressure. Therefore, if the fuel is heated in the morning as it is in this state, it is scattered as soot. However, since there is no recovery cycle circuit before the dust removing device, it is separated into the air from the chimney tip as it is. Also, of course, even if a dust removal device that performs a simple soot collection process is provided at the end of the chimney, a large device cannot be installed, and the dust is scattered outside due to a small collection rate. The present invention fosters a dust removal cycle using a bypass flue circuit for a chimney and a main flue system that can be opened and closed at the upper end, and removes and collects soot and dust in a chimney and a chimney without fail through a dust removal device. The purpose is to do.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the gist of the present invention is to provide an opening / closing lid at an upper end opening of a chimney and to install a lid inside the upper end of the chimney. The other end of the bypass flue circuit having one end connected to the main flue system connecting the boiler and the chimney, and at least a ventilator and a dust removing device are connected to the main flue system between the connection point and the chimney. Provided by a chimney using a bypass flue circuit. A chimney characterized by being able to perform a dust collection cycle on the inner surface of the stack. It is a soot removal and recovery device in the flue system. [Operation] Immediately before the start operation of the combustion operation of the boiler 1, the upper end opening / closing lid 6 of the chimney 5 is closed, and
The combustion gas flows through the chimney 5
Without being exhausted to the outside from the upper part, it becomes a ventilator 4 → chimney 5 → bypass flue 7 circuit → main flue 2 → dust removing device 3 → ventilator 4. The gas can be circulated. Therefore, the dust removal device 3
Removal and collection and cleaning of the dust film layer and soot in the main flue 2 and chimney 5 ahead can be performed reliably and easily. Naturally, at the time of normal operation, the opening / closing lid 6 at the upper end opening of the chimney 5 is opened. Next, embodiments of the present invention will be described in detail with reference to the drawings.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an openable / closable lid 6 is provided at the upper end opening of a chimney 5. The other end of the bypass flue 7 circuit having one end connected to the upper end of the chimney 5 is connected to the main flue 2 system connecting the boiler 1 and the chimney 5.
At least a ventilator 4 and a dust removal device 3 are provided in the main flue 2 system between the connection point P and the chimney 5.
And a chimney using 7 circuits of bypass flue. It is designed to perform a dust collection recovery cycle on the inner surface of the stack. In the embodiment shown in the drawings, the case of suction ventilation in which the ventilator 4 is provided on the rear side of the dust removal device 3 is illustrated. However, the ventilation is reversed and the ventilator 4 is provided in front of the dust removal device 3. Needless to say, a press-in ventilation type may be used.

[0006]

According to the present invention, as described above, by cultivating a dust removal cycle, it is possible to remove and collect soot and dust in a flue and a chimney by passing through a dust removal device without fail. In the present invention, since the combustion gas can be circulated in a form that always passes through the dust removal device, this operation is performed for several minutes at the time of startup, and the amount of soot generated on the chimney side ahead of the dust removal device is reduced. When the normal operation is performed after forcible collection and cleaning, the effect that almost no soot is generated can be obtained. In addition, the equipment cost is extremely low and its economic effect is remarkable.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a soot removal and recovery device of the present invention.

[Explanation of symbols]

 P Connection point 1 Boiler 2 Main flue 3 Dust removal device 4 Ventilator 5 Chimney 6 Opening / closing lid 7 Bypass flue

Claims (1)

(57) [Claims] An opening / closing lid is provided at an upper end opening of a chimney, and the other end of a bypass chimney having one end communicated with the upper end of the chimney is connected to the boiler or the boiler and the chimney.
And a main flue 2 system between the connection point P and the chimney 5 at least with the ventilator 4 and the dust removal device 3.
And a chimney using a bypass flue circuit. A chimney characterized by the ability to perform a dust collection cycle on the inner surface of the stack. Soot removal and collection equipment in the flue system.