JP2000283452A - Combustion device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combustion device capable of efficiently removing the odor of an exhaust gas. SOLUTION: In a combustion device having a burner blower 3, a burner 5 and a hot water heat exchanger 9 disposed in a flue 7 for an exhaust gas from the burner provided in a housing 1, a deodorization device 31 having an active carbon filter installed therein is detachably provided in an opening communicating with the flue 7 formed in the housing 1, and an exhaust top 33 is freely detachably attached on the deodorization device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a combustion device provided with a hot water heat exchanger such as a water heater.

[0002]

2. Description of the Related Art Generally, there is known an oil-fired apparatus including a burner blower, a burner, and a hot water heat exchanger disposed in a flue of combustion gas from the burner in a housing. In this type, the casing is provided with an exhaust port communicating with the flue, and when unburned exhaust gas is exhausted through this exhaust port when extinguishing or igniting a burner, an odor is generated.

[0003] In order to remove this odor, conventionally, a catalyst such as platinum is attached to the main body wall of the hot water heat exchanger,
When extinguishing or igniting a burner, a brake is applied to an oil supply pump to the burner to forcibly stop the burner.

[0004]

However, when a catalyst is used, there is a problem that the catalyst function does not function effectively until the exhaust gas temperature reaches a catalyst activation temperature (for example, 300 ° C. or higher). Therefore, in general, the temperature of the catalyst is raised by using an electric heater, but there is a problem that extra electric power is consumed. In addition, there is a problem that a large amount of SOx and NOx is generated during continuous combustion at a high catalyst temperature.
When the burner is extinguished or ignited, when the brake is applied to the oil supply pump to the burner to forcibly stop the burner, there is no problem after the stop, but there is a problem that the smell exhausted during that time cannot be removed.

Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art and to provide a combustion apparatus capable of efficiently removing the odor of exhaust gas.

[0006]

According to the first aspect of the present invention,
In a combustion device including a burner blower and a burner in a housing and a hot water heat exchanger disposed in a flue of combustion gas from the burner, at an opening communicating with a flue formed in the housing,
A deodorizing device having a built-in activated carbon filter is connected, and an exhaust top is detachably attached to the deodorizing device.

In the present invention, the odor is physically absorbed and removed by the activated carbon filter. That is, it is a total hydrocarbon (THC) removal of unburned components, and does not require a high temperature (for example, 300 to 700 ° C) like a catalyst. Also, there is no generation of SOx and NOx. Furthermore, since it is connected between the opening formed in the housing and the exhaust top, it can be easily attached to an existing combustion device.

According to a second aspect of the present invention, in the first aspect, the opening of the housing and the exhaust top connection port of the deodorizing device have substantially the same shape.

According to the present invention, since the opening of the housing and the exhaust top connection port of the deodorizing device have substantially the same shape, even in the case of an existing combustion device having no deodorizing device, the exhaust top can be removed. The deodorizing device can be easily installed.

[0010] According to a third aspect of the present invention, in the first or second aspect, the deodorizing apparatus includes a main body for detachably accommodating the activated carbon filter, and a lid is attached to the main body via a screw. It is characterized by having.

According to the present invention, when the activated carbon of the activated carbon filter is deteriorated, the deteriorated activated carbon can be easily replaced simply by removing the screw.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a housing. Inside the housing 1, a burner motor 2 and a burner blower 3
And the burner 5 and the flue 7 of the combustion gas from the burner 5
And a hot-water heat exchanger 9 arranged in the first position. Reference numeral 11 denotes a control board to which a power transformer 12 is connected. This device is an oil burning device and includes an oil tank 10.

When the combustion control is started on the control board 11,
Oil is pumped up by an electromagnetic pump 13 provided in an oil tank 10, and the oil is passed through a pipe 14 to a burner 5.
Supplied to And, with this burner 5, the burner blower 3
And is ignited via a spark plug (not shown).

When the burner 5 is ignited, the combustion gases reach the hot water heat exchanger 9 through the flue 7. In this hot water heat exchanger 9, the hot water pipe 21 extends in a meandering manner with respect to the flue 7,
Return water from a hot water device such as a hot water floor mat (not shown) is supplied to the hot water pipe 21. A header 22 is provided at the left end of the housing 1 in the drawing, and a return port 2 of the header 22 is provided.
The water returns to 2a. The return water flows into the hot water pipe 21 through an S-shaped pipe 23 and an L-shaped pipe 24, and is heated by the heat of the combustion gas passing through the flue 7 in the hot water pipe 21.・ Pipe 2 after temperature rise
Through 5, it flows into the cistern tank 26.

The hot water in the cistern tank 26 is supplied to the pipe 2
The water is pumped through a circulation pump 28 through a pipe 7, supplied to a supply port 22b of the header 22 through a pipe 29, and then supplied to a hot water floor mat (not shown).

In this embodiment, the flue 7 of the exhaust gas from the hot water heat exchanger 9 is bent in an L shape and penetrates the top plate of the housing 1. An opening (not shown) communicating with the flue 7 is formed in the top plate of the housing 1.
As shown in the figure, a deodorizing device 31 with a built-in activated carbon filter
The exhaust top 33 is detachably attached to the deodorizing device 31.

An opening (not shown) provided on the top plate of the casing 1 and a connection port of an exhaust top of the deodorizing device 31 are formed in substantially the same shape, so that the deodorizing device 31 is not required. , The exhaust top 33 can be directly attached to an opening (not shown).

As shown in FIG. 3, the deodorizing device 31 includes a main body 36 for removably accommodating a honeycomb-shaped activated carbon filter 35, for example.
After accommodating 5, the cover 38 can be attached to the main body 36 with four screws 38 to the cover 37. According to this configuration, as shown in FIG. 4, the exhaust gas flowing from the lower end A is supplied to the honeycomb-shaped activated carbon filter 35.
, And is exhausted from the upper end B and flows into the exhaust top 33.

The honeycomb-shaped activated carbon filter 35 is
It removes odors by physically adsorbing them, and does not use chemical treatment like a catalyst. That is, it is the removal of the total hydrocarbon (THC) of the unburned components, and the high temperature (for example, 300 to 700
° C). Also, there is no generation of SOx and NOx. Since the deodorizing device 31 is simply connected between the opening formed in the housing 1 and the exhaust top 33, the deodorizing device 31 can be easily attached to an existing combustion device.

Further, even when the activated carbon of the activated carbon filter 35 is deteriorated, the effect that the deteriorated activated carbon can be easily replaced without removing a special tool by simply removing the four screws 38, etc. Play.

In this embodiment, unlike the conventional one,
No deodorizing catalyst is used. Therefore, even if the exhaust gas temperature is low, the deodorizing function can be effectively functioned from the beginning. Further, if the catalyst is used for a long time, there is a problem that the catalyst is oxidized and a large amount of SOx and NOx are generated. However, in this embodiment, the total hydrocarbon (T ·
Because of H.C) removal, a material that can withstand long-term use is provided.

Further, unlike the conventional one, there is no configuration in which a brake is applied to the oil supply pump to the burner to forcibly stop the burner when the burner is extinguished or ignited. Therefore, irrespective of the operation of the oil supply pump, deodorization can be performed immediately at the time of extinguishing or igniting the burner 5.

Although the present invention has been described with reference to one embodiment, it is apparent that the present invention is not limited to this.

[0025]

According to the first aspect of the present invention, the odor is physically absorbed and removed by the activated carbon filter. That is, it is a total hydrocarbon removal of unburned components, and does not require a high temperature like a catalyst. Also, SOx,
There is no generation of NOx.

Further, since it is connected between the opening formed in the housing and the exhaust top, it can be easily attached to an existing combustion device.

According to the second aspect of the present invention, since the opening of the housing and the exhaust top connection port of the deodorizing device have substantially the same shape,
Even for an existing combustion device without a deodorizing device, the exhaust top can be removed and the deodorizing device can be easily attached.

According to the third aspect of the present invention, when the activated carbon of the activated carbon filter is deteriorated, the deteriorated activated carbon can be easily replaced simply by removing the screw.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a combustion device according to the present invention.

FIG. 2 is a diagram in which a deodorizing device and an exhaust top are separated.

FIG. 3 is an exploded view of the deodorizing device.

FIG. 4 is a partial sectional view of the deodorizing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Burner motor 3 Burner blower 5 Burner 7 Flue 9 Hot water heat exchanger 11 Control board 31 Deodorizing device 33 Exhaust top 35 Activated carbon filter 36 Main body 37 Cover 38 Screw

Claims (3)

[Claims] 1. A combustion device having a burner blower, a burner, and a hot water heat exchanger disposed in a flue of combustion gas from the burner in a housing, wherein the combustion device communicates with the flue formed in the housing. A combustion device characterized in that a deodorizing device having a built-in activated carbon filter is connected to the opening to be removed, and an exhaust top is detachably attached to the deodorizing device. 2. The combustion device according to claim 1, wherein an opening of the casing and an exhaust top connection port of the deodorizing device have substantially the same shape. 3. The combustion device according to claim 1, wherein the deodorizing device includes a main body for detachably storing the activated carbon filter, and a lid is attached to the main body via a screw. .