JPH11101409A - Combustion equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide combustion equipment enabling continuation of stable combustion for a long period. SOLUTION: In combustion equipment having a plurality of gas burners juxtaposed at prescribed intervals in a burner case, an angled air-straightening plate 6 provided upright in the shape of stretching between these gas burners and a blower for supplying combustion air upward from the lower side of this air-straightening plate 6, a partition plate 10 formed by providing laterally- symmetric guide vanes 12 and 13 on the upper side of a base 11 is installed inside the air-straightening plate 6. Air vents 7 are formed in the air- straightening plate 6 so that they are opposed to the guide vanes 12 and 13 of the partition plate 10. By this constitution, a state of discharge from the air vents is made symmetric laterally and the air-straightening plate is prevented from being deformed by heat asymmetrically laterally and cracking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion apparatus in which a plurality of gas burners are juxtaposed at predetermined intervals.

[0002]

2. Description of the Related Art FIG. 7 is a sectional view showing an example of a baffle plate constituting a conventional combustion device, and FIG. 8 is a perspective view showing an example of a partition plate constituting a conventional combustion device.

[0003] Conventionally, as this type of combustion device 1, as shown in FIG. 7, a mountain-shaped air conditioning plate 6 is erected so as to straddle between two gas burners (not shown). Partition plate 1
0 is used. As the partition plate 10, there is known a partition plate having an upper portion formed in a waveform as shown in FIG.

[0004]

However, in this case, since the upper part of the partition plate 10 is corrugated, the air conditioner 6
The discharge state from the air supply port 7 alternately repeats the strength on the left and right and becomes non-uniform. As a result, when the combustion is continued, the air conditioning plate 6 is thermally deformed asymmetrically in the left and right direction, and eventually a crack is generated, and the combustion becomes unstable.

[0005] In view of the above circumstances, an object of the present invention is to provide a combustion apparatus that can continue stable combustion for a long period of time.

[0006]

That is, the present invention provides a plurality of gas burners juxtaposed at predetermined intervals in a burner case, and a mountain-shaped air conditioning plate erected so as to extend between the gas burners. In a combustion device including a blower that supplies air for combustion from below to above the air conditioning plate, a partition plate provided with symmetrical guide vanes on the upper side of the substrate is installed in the air conditioning plate, An air supply port is formed in the air conditioning plate so as to face a guide blade of the partition plate.

Further, according to the present invention, the guide blade is formed in a saw-tooth shape.

[0008]

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

FIG. 1 is a sectional view showing an embodiment of the combustion apparatus according to the present invention, FIG. 2 is an enlarged sectional view showing the vicinity of a baffle plate of the combustion apparatus shown in FIG. 1, and FIG. FIG. 4 is an enlarged view of a portion A in FIG. 2, FIG. 5 is a perspective view showing an example of a partition plate constituting a combustion device according to the present invention, and FIG. 6 is a combustion view according to the present invention. It is a perspective view which shows another example of the partition plate which comprises an apparatus.

As shown in FIG. 1, a combustion device 1 according to the present invention has a burner case 2 in which three gas burners 3 are juxtaposed at predetermined intervals. I have. As shown in FIGS. 2 and 3, a boat-shaped lid 5 is mounted on the upper opening of each gas burner 3 so as to form a plurality of flame holes 8.

On the gas burners 3, four mountain-shaped air conditioning plates 6 are erected so as to straddle between two adjacent gas burners 3, and are located on the left and right sides near the top of each air conditioning plate 6. As shown in FIGS. 3 and 4, respectively,
A large number of air supply ports 7 are formed so as to be located above each flame hole 8. Further, a plurality of vertically long air supply slits 9 are formed on both left and right side surfaces of each air conditioning plate 6 so as to be located between the flame holes 8.

The partitioning plates 1 are provided in each of the air conditioners 6.
The partition plate 10 includes a substrate 11 and guide blades 12, as shown in FIG. That is, the partition plate 10 is a flat substrate 1 in which two steel plates 11a and 11b having the same shape and size are welded.
1, a large number of sets of left and right symmetrical guide blades 12 and 13 are arranged on the upper side of the substrate 11 in a saw-tooth shape at regular intervals. And these guide blades 1
As shown in FIG. 4, 2 and 13 face each air supply port 7.

On the other hand, a heat exchange cylinder 15 is mounted on the upper side of the burner case 2. In the heat exchange cylinder 15, a heat absorber in which a number of heat absorbing fins 17 are provided around a number of heat absorbing tubes 16. 19 are installed.

An exhaust pipe 20 is provided above the heat exchange cylinder 15.
Is attached, and a blower 21 is attached to the exhaust pipe 20.

Since the combustion device 1 has the above-described configuration, when the water passing through the heat absorption tube 16 is heated by using the combustion device 1, the blower 21 is driven to rotate and the gas burner 3 is driven. Gas is supplied, and ignition is performed using an ignition device (not shown). Then, the gas supplied to the gas burner 3 mixes with the primary air and is discharged upward from each flame hole 8 to form a predetermined flame. Further, the flame is supplied to the air supply port 7 and the secondary air supply slit 9 from the secondary air supply slit 9. Is supplied and burns.

At this time, the secondary air is supplied from below the air conditioner 6, rises separately on the right and left sides of the partition plate 10, is guided by the guide blades 12 and 13, and is discharged from the air supply port 7. However, since these guide blades 12 and 13 are provided symmetrically to the left and right air supply ports 7, the discharge state from each air supply port 7 becomes uniform left and right. Therefore, the air conditioning plate 6 is not thermally deformed asymmetrically to cause cracks, and stable combustion can be continued.

The guide blades 12 and 13 are serrated, and a passage is formed between two guide blades 12 and 13 adjacent to each other.
If the secondary air that is divided into left and right in 1 is biased,
The bias of the secondary air can be corrected and leveled through this passage. As a result, the combustion state can be further stabilized.

In the above embodiment, the substrate 1
1 has two steel plates 11a and 1a having the same shape and size.
1b, but two steel plates 11
The shapes and sizes of a and 11b do not necessarily have to be the same. For example, as shown in FIG. 6, one steel plate 11b may be shortened to save material.

[0019]

As described above, according to the present invention, a plurality of gas burners arranged side by side at predetermined intervals in a burner case, and a mountain-shaped wind erected standing over the gas burners. In a combustion device including a plate and a blower for supplying air for combustion from below to above the air conditioning plate, a partition plate provided with symmetrical guide vanes above the substrate is installed in the air conditioning plate. Since the air supply port is formed in the air conditioner plate so as to face the guide blade of the partition plate, the discharge state from the air supply port becomes uniform left and right, and the air conditioner plate is thermally deformed left and right asymmetrically. Since no cracks are generated, stable combustion can be continued for a long period of time.

Further, according to the present invention, since the guide blade is formed in a saw-tooth shape, the bias of the secondary air discharged from the air supply port can be corrected and leveled, so that the combustion state can be further stabilized. Becomes possible.

[Brief description of the drawings]

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

FIG. 2 is an enlarged cross-sectional view showing the vicinity of a baffle plate of the combustion device shown in FIG.

FIG. 3 is an enlarged side view showing the vicinity of a baffle plate of the combustion device shown in FIG.

FIG. 4 is an enlarged view of a portion A in FIG.

FIG. 5 is a perspective view showing an example of a partition plate constituting the combustion device according to the present invention.

FIG. 6 is a perspective view showing another example of the partition plate constituting the combustion device according to the present invention.

FIG. 7 is a cross-sectional view showing an example of an air conditioner constituting a conventional combustion device.

FIG. 8 is a perspective view showing an example of a partition plate constituting a conventional combustion device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Combustion device 2 ... Burner case 3 ... Gas burner 6 ... Air conditioning plate 7 ... Air supply port 10 ... Partition plate 11 ... Board 12, 13 ... Guide blade 21 ... Blower

Claims (2)

[Claims] 1. A plurality of gas burners arranged side by side at predetermined intervals in a burner case, a mountain-shaped air conditioning plate erected so as to straddle between the gas burners, and A blower that supplies air for combustion toward the air conditioner, wherein a partition plate provided with symmetrical guide blades on the upper side of the substrate is installed in the air conditioning plate, and an air supply port is provided in the air conditioning plate. A combustion device characterized by being formed so as to face a guide blade of a partition plate. 2. The combustion device according to claim 1, wherein the guide blades have a saw-tooth shape.