JP2571504Y2 - Gun type burner device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gun-type burner device used in a domestic petroleum water heater or the like.

[0002]

2. Description of the Related Art In recent years, in order to improve comfort in daily life, not only hot water to a kitchen or a bathtub but also hot water to another hot water destination such as a shower or a curan has been required. The required heat load required for petroleum water heaters is inevitably increasing.

[0003] As a method of coping with this, a combustion device is used.
As shown in FIGS. 4 and 5, there is formed by gun type burner device C comprising a plurality of tubular burner body X _1, X ₂ which is arranged in parallel state petroleum hot water machine.

Hereinafter, the configuration of the gun type burner device C will be described.

Since the tubular burner bodies X ₃ and X ₄ have substantially the same configuration, the structure of the one-side tubular burner body X ₃ will be described below.

As shown in the figure, a combustion cylinder 83 comprising an outer cylinder 81 and an inner cylinder 82 is attached to an opening of a combustion chamber wall 80 having a number of heat exchange fins f therein. That is, the combustion cylinder 83
Is mounted by connecting a flange 81a provided at the lower end of the outer cylinder 81 to the upper wall of the combustion chamber wall 80. Further, a fuel ejection nozzle 85 is mounted in the inner cylinder 82.

[0007] At the tip of the fuel ejection nozzle 85, an ignition plug 86 having one end connected to an ignition transformer Tr is provided.

A stabilizer S is provided immediately before the fuel injection nozzle 85 to secure the stability of the combustion flame. The stabilizer S is cut and raised around a central opening 87 to form a large number of inclined holes. It is formed from a disk provided with 88.

The stabilizer S is connected to the end of the inner cylinder 82 and has a flame holding cylinder having a number of secondary air inflow holes 92.
Surrounded by 91.

On the other hand, the outer cylinder 81 is communicatively connected to an air supply cylinder 67 which communicates with the air supply fan 72, and the air supply cylinder 67 is partitioned to a halfway by a partition wall 67a.

The rear wall of the inner cylinder 82 is provided with a number of primary air inflow holes 82a.

Therefore, a primary air passage 93 is formed in the inner cylinder 82, and an annular secondary air inflow passage 94 is formed between the inner cylinder 82 and the outer cylinder 81. Become.

[0013] The fuel jetting nozzle 85 in the tubular burner body X ₄ is different from the tubular burner body X _1, consisting of the return type pressure spray nozzle.

With this configuration, each cylindrical burner main body is provided.
The combustion air generated by the air supply fan 72 of X ₃ , X ₄
Through the air supply cylinder 67, the air flows into the outer cylinder 81 and the inner cylinder 82 and is divided into primary combustion air and secondary combustion air.
And into the flame holding tube 91.

[0015] Then, the ejecting fuel atomization state than the respective fuel injection nozzles 85, 85 of each tubular burner body X _3, X _4, combustion is performed by the ignition by the respective spark plugs 86, 86 be able to.

Further, such combustion can sufficiently cope with a large required heat load.

[0017]

However, such a gun-type burner device C still has the following problems to be solved.

That is, as shown in FIG. 4 and FIG.
In order to promote the diffusion of the combustion gas in the combustion chamber, each of the cylindrical burner bodies X ₃ , X ₄ is juxtaposed on the left and right sides of an oval end plate 83 a fitted on the front surface of the combustion cylinder 83. A pair of portal-type stirring plates 90 composed of elongated plates are mounted in a bridge state.

However, as can be seen from FIG. 5, the bridge direction L of the portal stirrer plate D on the front surfaces of the cylindrical burner bodies X ₃ and X ₄ is set to L.
₄ is a connecting line L connecting the centers of both cylindrical burner bodies X ₃ and X ₄
Orthogonal to ₃

[0020] Thus, both tubular burner body X _3, X ₄ of the combustion flame F _3, F ₄ with each other collide-contact, the contact points becomes insufficient air, resulting in a problem that smoke is generated.

An object of the present invention is to provide a gun type burner device which can solve the above-mentioned problems.

[0022]

According to the present invention, a plurality of gun-type burners are arranged in parallel toward the combustion chamber, and an elongated plate-shaped portal-type stirring plate is erected in front of each gun-type burner. The gun-type burner is characterized in that the gate-type stirring plate intersects a line connecting the centers of the injection nozzles at an oblique angle such that the combustion flames of the gun-type burners arranged side by side do not contact each other. It concerns the device.

In the present invention, a plurality of gun type burners are arranged in parallel toward the combustion chamber, and an elongated plate-shaped portal stirring plate is installed on the front surface of each gun type burner.
Further, the present invention relates to a gun-type burner device, wherein the mounting height of the same gate-type stirring plate is made different depending on the amount of fuel of each gun-type burner by setting the optimum height.

[0024]

EXAMPLES In the _following, Based on the embodiment shown in the accompanying drawings of the present invention _, I will elaborate.

FIG. 1 shows the overall configuration of a petroleum water heater B having a gun type burner device A according to the present invention.

As shown in the figure, a petroleum water heater B sends a heat exchanger 11, a gun-type burner device A connected to the upper end of the heat exchanger 11, and a gun-type burner device A in a casing 10. This is constituted by disposing an air supply fan 13 connected via a cylinder 12 and exhaust ducts 14 and 15 connected to the lower end of the heat exchanger.

FIGS. 2 and 3 show the overall construction of a gun type burner apparatus A which is a main part of the present invention. As shown
Gun type burner device A is comprised of a plurality of tubular burner body X _1, X ₂ which is arranged in juxtaposed condition.

[0028] First, a description will be given of the structure of one side tubular burner body X _1.

As shown in the figure, an oval outer cylinder 21 is attached to the rear opening of the heat exchanger 20 in which the heat exchange fins 19 are disposed in the combustion chamber 18. , the juxtaposed state, and one side cylindrical burner inner tube 22 for the main body X _1, the inner cylinder 42 is disposed for the other side tubular burner body X ₂ to be described later.

That is, the outer cylinder 21 is attached by connecting a flange 21 b provided at a lower end thereof to an upper wall of the heat exchanger 20.

A combustion chamber 24 is formed in the inner cylinder 22.
At a position behind the combustion chamber 24, a fuel ejection nozzle 25 composed of a return type pressure spray nozzle is mounted.

[0032] the tip forward of the fuel injection nozzle 25, the ignition plug 26 is disposed having one end connected to the ignition transformer Tr _1.

Further, the fuel just before the ejection nozzle 25 is stabilizer S ₁ is provided in order to ensure the stability of the combustion flame, the stabilizer S ₁ a number of oblique傾孔28 in the central opening 27 around Is formed from a disk cut and raised.

The stabilizer S ₁ is connected to the front end of the inner cylinder 22 and has a flame holding cylinder provided with a number of secondary air inflow holes 30.
Surrounded by 31.

On the other hand, the outer cylinder 21 is provided with a concentric outer cylinder extension 21a at a rear portion thereof.
The rear end of 21a is communicatively connected to an air supply cylinder 24 that communicates with an air supply fan 32.

The air supply cylinder 24 is partitioned by a partition wall 44 halfway.

In the inner cylinder 22 and the inner cylinder extension 22a, a primary air flow path 33 is formed, and between the inner cylinder 22 and the outer cylinder 21 and the partition wall 44, and between the inner cylinder 22 and the inner cylinder extension 22a. An annular secondary air inflow passage 34 is formed between the outer cylinder 22a, the outer cylinder extension 21a, and the partition wall 44.

The rear ends of the primary air passage 33 and the secondary air passage 34 are provided with dampers D ₁ , D
_Two are arranged. Incidentally, as the dampers D ₁ and D ₂ for switching the air flow paths, the present applicant has previously filed Japanese Patent Application No. 3-1101.
The structure shown in No. 6 can be used.

Further, as shown in FIGS. 2 and 3, an oval end plate 21b is similarly fitted into the distal end opening of the oval outer cylinder 21, and one side of the end plate 21b is attached to the end plate 21b. Both ends of a portal type stirring plate 35 provided in front of the flame holding tube 31 are fixed by screws 36 or the like.

[0040] Next, the structure of the other side tubular burner body X _2.

As shown in the drawing, an inner cylinder 42 is mounted inside one side of the outer cylinder 21 at the rear opening of the combustion chamber wall 20.

Further, just before the fuel injection nozzle 45, and stabilizer S ₂ is provided in order to ensure the stability of the combustion flame, the stabilizer S ₂ a number of oblique傾孔48 in the central opening 47 around And is formed from a disk.

[0043] Then, the same stabilizer S _2, flame holding cylinder comprises a large number of secondary air inlet hole 50 provided continuously to the tip of the inner tube 42 51
Is surrounding.

While a number of primary air inflow holes 42a are provided in the rear wall of the inner cylinder 42, a primary air passage 53 is formed in the inner cylinder 42, and the inner cylinder 42 is An annular secondary air flow path 54 is formed between the cylinder 41 and the partition wall 44.

Further, the rear end of the primary air passage 53 and the secondary air passage 54, air passage switching damper device D ₃ is disposed.

It should be noted that this air path switching damper device D ₃
Also, the one having the structure shown in Japanese Patent Application No. 311016 previously by the present applicant can be used.

Further, as shown in FIG. 1 and FIG.
On the other side of the oblong end plate 21b attached to the tip opening of 21,
Both ends of a portal type stirring plate 55 erected in front of the flame holding cylinder 51 have screws 56.
And so on.

With this configuration, each cylindrical burner body
The combustion air generated by the air supply fans 32 of X ₁ and X ₂ is
The outer cylinder extends through the outer cylinder extensions 21a _and 41a and the inner cylinder extension 22a.
The primary combustion air and secondary combustion air are divided into primary combustion air and secondary combustion air, and then flow into the flame holding cylinders 31,51.

Then, the fuel can be ejected into the atomized state from the fuel ejection nozzles 25 and 45 of the cylindrical burner bodies X ₁ and X ₂ , and the fuel can be ignited by the ignition plug 26 to perform combustion.

Further, such combustion can sufficiently cope with a large required heat load.

In the present invention, in the gun-type burner apparatus A having the above-described structure, as can be seen most clearly from FIG. 3, the portal-type stirring plates 35, 5 provided in front of the flame holding tubes 31, 51 are provided.
5 erection direction L ₂ of, in plan view, both tubular burner body
With respect to the line L ₁ connecting the centers of the X _1, X _2, characterized in that the combustion flame of the respective tubular burner body X _1, X ₂ are crossed at an oblique inclination angle α which is not in contact.

As described above, the erection direction of the portal stirring plates 35 and 55
L ₂ is a line connecting the centers of both cylindrical burner bodies X ₁ and X ₂
As shown in FIG. 2, the combustion flame F from both tubular burner main bodies X ₁ and X ₂ was not crossed at a right angle to L ₁ but at an inclination angle α of, for example, 20 ° to 50 °. Contact between _{1, 2} can be reliably prevented.

Therefore, according to the present invention, it is possible to reliably prevent the generation of smoke due to the shortage of air due to the contact of the combustion flame in the conventional gun type burner device, and it is possible to improve the combustion efficiency.

In the above embodiment, the portal type stirring plate 3
Although 5,55 was described as having the same height, as shown in Fig. 6, it is possible to further improve the combustion condition by making the height different depending on the combustion amount of each burner and making it different. It is.

[0055]

[Effects of the Invention] In the present invention, a plurality of gun-type burners are arranged in parallel toward the combustion chamber, and a long and narrow plate-shaped stirring plate is erected in front of each gun-type burner. Since the mold stir plate intersects the line connecting the centers of the injection nozzles at an oblique angle where the combustion flames of the gun-type burners juxtaposed do not contact each other, combustion from the gun-type burners juxtaposed It is possible to reliably prevent the flames from coming into contact with each other, to surely prevent the generation of smoke due to the contact, and to improve the combustion efficiency.

Further, the combustion state can be further improved by changing the mounting height of the portal type stirring plate to the optimum height according to the fuel amount of each gun type burner.

[Brief description of the drawings]

FIG. 1 is a sectional front view of a petroleum water heater having a gun type burner device according to the present invention.

FIG. 2 is an explanatory diagram of an internal configuration of a gun type burner device.

FIG. 3 is a view taken along line II of FIG. 2;

FIG. 4 is an explanatory view of the internal configuration of a conventional gun type burner device.

FIG. 5 is a view taken along the line II-II in FIG. 4;

FIG. 6 is an explanatory diagram of an internal configuration of a gun type burner device according to another embodiment.

[Explanation of symbols]

A Gun type burner device B Petroleum water heater P Fire transfer passage S ₁ , S ₂ Stabilizer Tr Ignition transformer X ₁ , X ₂ Tubular burner body 11 Combustion chamber 25 Fuel ejection nozzle 26 Ignition plug for ejection nozzle ignition 31 Flame holding Cylinder 31a Notch 35 Gate stir plate 45 Fuel jet nozzle 51 Flame holding cylinder 55 Gate stir plate

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) creator Masaru Yanagita 43-1, Uozakihama-cho, Higashinada-ku, Kobe-shi, Hyogo Japan Inside the Nippon Yupro Co., Ltd. Inside Nippon Yupro Co., Ltd. (56) References JP-A 5-34412 (JP, U) JP-A 63-142521 (JP, U) JP-A 53-109835 (JP, U)

Claims (2)

(57) [Scope of request for utility model registration] A plurality of gun type burners are arranged in parallel toward a combustion chamber, and each gun type burner is
An elongated plate-shaped stirring plate is installed on the front, and the same
The stir plate is crossed at an oblique angle (α) at which the combustion flames of the gun type burners arranged side by side do not contact each other with respect to the line (L ₁ ) connecting the centers of the injection nozzles. Gun type burner device. 2. A plurality of gun type burners are arranged in parallel toward the combustion chamber, and each gun type burner is
An elongated plate-shaped stirring plate is installed on the front, and the same
A gun-type burner device, wherein the height of the stir plate is set to an optimum height in accordance with the fuel amount of each gun-type burner and is varied.