JP2000220889A - Hot-water boiler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the generation of a bad smell by inserting a baffle plate into a flue and allowing the baffle plate to carry a catalyst for sucking and burning a non-burned gas constituent. SOLUTION: An exhaust gas that is generated from the flame of a combustion chamber 2 flows toward a smoke collection board while uniformly hitting against the inner wall of a flue 3 by a baffle plate 11 during the flow through the flue 3 being formed in a pressure vessel 4 and transfers heat to the baffle plate 11 or the inner wall of the flue 3. In this case, a temperature distribution in the flue 3 ranges from 1,000 to 200, for example, from the combustion chamber 2 at a right end to the smoke collection board at a left end. In this manner, the baffle plate 11 that is inserted into each flue 3 when a combustion gas flows from the combustion chamber 2 toward the smoke collection board carries a platinum catalyst 13, so that a non-burned constituent flowing into the flue 3 without complete combustion in the combustion chamber 2 is activated and burned by the platinum catalyst 13, thus weakening the bad smell due to a non-combustion gas.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water boiler for heating water by burning liquid fuel such as petroleum.

[0002]

2. Description of the Related Art Conventionally, in a hot water boiler of this type, for example, a combustion chamber and a flue are formed in a can body containing hot water, and combustion gas generated by burning a burner is passed through the combustion chamber and the flue. The heat exchange between the combustion gas and the hot water in the can was performed during the discharge from the can, and the exhaust gas generated at that time was discharged from the chimney to the outside.

[0003] The exhaust gas contains unburned gas that is not completely burned, and this unburned gas is discharged to the outside, causing odor. In particular, after the combustion of the burner is stopped, the flame of the burner is extinguished, and the evaporated petroleum component touches the surrounding high-temperature portion, is thermally decomposed and is discharged while smoldering, so that a strong irritating odor component is generated.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object of the present invention is to provide a hot water boiler capable of reducing generation of offensive odor.

[0005]

According to the first aspect of the present invention,
A combustion chamber and a flue are formed in a can body in which hot water is stored, and while the combustion gas generated by burning the burner is discharged out of the can body through the combustion chamber and the flue, the combustion gas and the inside of the can body are formed. In a hot water boiler configured to exchange heat with hot water, a baffle plate is inserted into the flue, and a catalyst for adsorbing and burning unburned gas components is carried on the baffle plate.

According to a second aspect of the present invention, in the hot water boiler according to the first aspect, the baffle plate is provided so as to be freely inserted into and removed from the flue.

According to a third aspect of the present invention, a combustion chamber and a flue are formed in a can body in which hot water is stored, and combustion gas generated by burning the burner is discharged from the can body through the combustion chamber and the flue. In a hot water boiler that exchanges heat between combustion gas and hot water in a can body during discharge to a can body, a smoke collector that collects the combustion gas flowing out of the flue and guides it to an exhaust chimney is detachably attached to the can body. The baffle plate can be inserted and removed from the removed smoke collector side.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing one embodiment of a hot water boiler 1 according to the present invention, which is partially cut away. FIG. 2 is an enlarged view in which a part of the can body portion shown in FIG. 1 is cut away.

A hot water boiler 1 according to the present invention has a box-shaped main body casing 10 as shown in FIGS. 1 and 2, and a water chamber 5 for accommodating hot water is provided above the main body casing 10. A combustion chamber 2 and a large number of lateral flue 3 connected to the combustion chamber 2 are installed in the combustion chamber 2.
Are formed. A cistern tank (not shown), a circulating pump 16 and a water pipe (not shown) are provided in the main casing 10 as a hot water circulating device. A water pipe is connected to these hot water circulation devices,
By driving the circulation pump 16, the warm water in the water pipe can be circulated.

On the other hand, on the right side of the can 4 is a burner 6 for vaporizing and burning oil, and the flame of the burner 6 is
The combustion chamber 2 is connected to the combustion chamber 2. 7
Is a blower provided for the burner 6 for supplying combustion air. An oil leveler, an electromagnetic pump, an oil supply pipe, and the like (not shown) are provided below the burner 6 as a fuel supply device, and the fuel in the oil leveler is supplied to the burner 6 through the oil supply pipe.

The can body 4 is removably connected to a smoke collector 9 for collecting the combustion gas from the flue 3 and guiding it to an exhaust chimney 8. The smoke collector 9 is screwed (not shown) to the can 4 via a packing 12, and the baffle plate 11 is inserted into and removed from each flue 3 with the smoke collector 9 removed from the can 4. It can be inserted freely.

An inspection opening (not shown) is provided in a part of the side wall of the main body casing 10 facing the smoke collecting board 9, and a cover 14 is provided so as to cover the inspection opening. 10 is detachably screwed. By removing the lid 14 from the main casing 10, the smoke collector 9 can be removed, the flue gas 3 can be maintained and inspected, and the baffle plate 11 can be replaced via the inspection opening.

The flue 3 is constituted by a cylindrical metal pipe, and the baffle plate 11 inserted into the flue 3
Is made of a heat-resistant stainless steel plate having a thickness of about 11 mm, a width slightly smaller than the inner diameter of the flue 3 and a zigzag bending process. The length of the baffle plate 11 is set to be slightly shorter than the length of the flue 3, and a granular platinum catalyst 13 that adsorbs and burns unburned gas over substantially the entire surface thereof is supported by baking or the like. I have. A slightly wide handle 15 is formed at one end of the baffle plate 11, and the handle 15 facilitates insertion into the flue 3.

Since the hot water boiler according to the present invention has the above-described configuration, the fuel vaporized by the burner 6 is mixed with air and burned, the flame flows into the combustion chamber 2 and the combustion gas is discharged from each smoke. The air is discharged from the exhaust chimney 8 via the road 3 and the smoke collector 9. At this time, the combustion chamber 2 is 1200 to 13 degrees Celsius.
Heated to 00 degrees, the flue 3 on the combustion chamber 2 side
The temperature is raised to about 0 degrees, and the temperature gradually decreases toward the smoke collector 9 side. The exhaust gas generated from the flame in the combustion chamber 2 flows through the flue 3 formed in the can body 4 while uniformly hitting the inner wall of the flue 3 by the baffle plate 11 while collecting the smoke. 9, during which heat of the exhaust gas transfers heat to the baffle plate 11 and the inner wall of the flue 3. At this time, the temperature distribution in the flue 3 is, for example, 1000 degrees Celsius or more from the rightmost combustion chamber 2 to the leftmost smoke collector 9.
It is 200 degrees.

As described above, when the combustion gas flows from the combustion chamber 2 toward the smoke collector 9, the baffle plate 11 inserted into each flue 3 carries the platinum catalyst 13. The unburned components that have flowed into the flue 3 without being completely combusted in the combustion chamber 2 are activated by the platinum catalyst 13 and burn, thereby reducing the odor caused by the unburned gas.

The active temperature range of the platinum catalyst 13 is 30 degrees Celsius.
Although the temperature is preferably 0 to 800 degrees, the baffle plate 11 supporting the platinum catalyst 13 in the apparatus of the present invention is inserted into the flue 3 having a temperature distribution of 1000 to 200 degrees Celsius as described above. The effective combustion of the unburned gas is performed by utilizing the gas. Moreover, the capacity of the platinum catalyst 13 supported on the baffle plate 11 may be reduced after long-term use. In this case, the present invention relates to the cover 14 of the main body casing 10.
In addition, the smoke collector 9 is removed, and the baffle plate 11 is removed so that inspection and replacement can be performed. In this case, the baffle plate 11 has a handle portion 1 at one end of the baffle plate 11 which is wider than the width of the baffle plate 11 as described above.
Since the baffle plate 11 is formed to facilitate the insertion and removal of the baffle plate 11, not only the operation of inserting the baffle plate 11 into the flue 3 is simplified, but also an incorrect insertion direction can be prevented. If the length of the baffle plate 11 is the same, parts can be shared and the operation of inserting the baffle plate 11 can be simplified.

As described above, the present invention has been described based on one embodiment, but the present invention is not limited to this. Although the structure of the baffle plate 11 was formed by processing a heat-resistant stainless steel plate in a zigzag shape, the material is not limited to the stainless steel plate, but may be any heat-resistant metal plate as long as the platinum catalyst 13 can be baked and bonded. The shape may be a twisted shape or a shape in which a plurality of cut-and-raised portions are provided on a plate material.

[0019]

According to the first aspect of the present invention, the catalyst for adsorbing and burning unburned gas components is carried on the baffle plate inserted in the flue after the fuel has burned, so that the burner in the combustion chamber is burned. External emission of unburned gas can be reduced while increasing the heat exchange efficiency between the combustion gas and the hot water without affecting the combustion of the gas. In addition, by supporting the catalyst on the baffle plate of the flue in the active temperature range of the catalyst (platinum), the function of the catalyst can be fully exhibited regardless of whether the burner combustion is strong combustion or weak combustion. Unburned components can be burned to prevent the generation of offensive odors from this type of hot water boiler.

According to the second and third aspects of the present invention, a deodorizing apparatus is provided in which platinum as a catalyst is supported on a baffle plate.
Furthermore, since the component on the side where the baffle plate is inserted can be easily removed, when the catalyst loses its deodorizing effect, replacement of the baffle plate as a deodorizing device can be easily performed. Also, soot and dirt on the baffle plate can be inspected and easily removed.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of a hot water boiler according to an embodiment of the present invention.

FIG. 2 is a front view of a can body of the hot water boiler shown in FIG.

FIG. 3 is a perspective view showing an example of a baffle plate of the present invention.

FIG. 4 is a perspective view showing another example of the baffle plate of the present invention.

FIG. 5 is a perspective view showing another example of the baffle plate of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hot water boiler 2 Combustion chamber 3 Flue 4 Can body 9 Smoke collector 11 Baffle plate 13 Catalyst

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Shinichiro Yanagida 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Haruo Kato 2-5-5 Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd.

Claims (3)

[Claims] 1. A combustion chamber and a flue are formed in a can body containing hot water, and combustion gas generated by combustion of a burner is discharged to the outside of the can body through the combustion chamber and the flue. In a hot water boiler configured to exchange heat between gas and hot water in a can body, a baffle plate is inserted into the flue, and the baffle plate carries a catalyst for adsorbing and burning unburned gas components. Hot water boiler. 2. The hot water boiler according to claim 1, wherein the baffle plate is provided so as to be freely inserted into and removed from the flue. 3. A combustion chamber and a flue are formed in a can body containing hot water, and combustion gas generated by burning the burner is discharged to the outside of the can body through the combustion chamber and the flue. In a hot water boiler configured to exchange heat between gas and hot water in a can body, a smoke collector that collects combustion gas flowing from the flue and guides the exhaust gas to an exhaust chimney is detachably attached to the can body, and the baffle plate A hot water boiler characterized in that insertion and removal can be performed from the side of the removed smoke collector.