JPH0534412U - Gun type burner device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] In a gun-type burner device consisting of a plurality of cylindrical burners arranged in an oil water heater, deterioration of the combustion state in the combustion chamber, generation of odors and carbon monoxide, smoke To prevent the occurrence of. [Structure] A plurality of cylindrical burner bodies X ₁ and X ₂ arranged in parallel are connected to the inlet side of the heat exchanger, and a portion immediately before a fuel injection nozzle 25 of an adjacent cylindrical burner body is connected. The combustion chambers in front of the flame holding cylinders 31 and 51 surrounding the stabilizers S ₁ and S ₂ located at are divided into partial combustion chambers by a flame cooling prevention partition plate 60 having a constant height and width, In addition, a part of the flame cooling prevention partition plate 60 is cut out to form a fire transfer opening 61 so that the partial combustion chambers can be connected to each other through the opening.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a gun-type burner device used in a household oil water heater or the like.

[0002]

[Prior Art]

 In recent years, in order to improve comfort in daily life, it has become necessary not only to supply hot water to the kitchen or bathtub, but also to supply hot water to other hot water destinations such as showers and currans, resulting in a petroleum water heater. The required heat load required for the products is inevitably increasing.

As a method of coping with this, as shown in FIGS. 5 and 6, the combustion apparatus is a gun type bag including a plurality of cylindrical burner main bodies X _{1 and} X ₂ arranged in parallel in an oil water heater. Some are formed by the device C.

The structure of the gun-type burner device C will be described below.

Since the tubular burner bodies X ₁ and X ₂ have substantially the same configuration, the structure of the one-sided tubular burner body X ₁ will be described below.

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

A fuel ejection nozzle 85 is attached in the inner cylinder 82.

An ignition plug 86 having one end connected to an ignition transformer Tr is arranged at the tip of the fuel injection nozzle 85.

Further, a stabilizer S is provided immediately in front of the fuel injection nozzle 85 in order to ensure the stability of the combustion flame, and the stabilizer S cuts and raises around the central opening 87 and is inclined. It is formed of a disk provided with holes 88.

The stabilizer S is continuously provided at the tip of the inner cylinder 82, and is surrounded by a flame holding cylinder 91 having a large number of secondary air inflow holes 90.

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

Further, a large number of primary air inflow holes 82a are provided in the rear wall of the inner cylinder 82.

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

[0014] The fuel jetting nozzle 85 in the tubular burner body X ₂ are Unlike a tubular burner body X _1, consisting of the return type pressure spray nozzle.

With such a configuration, the combustion air generated by the air supply fan 72 of each of the cylindrical burner bodies X ₁ and X ₂ flows into the outer cylinder 81 and the inner cylinder 82 through the cylinder 67, and the primary combustion is performed. It is divided into air and secondary combustion air, and then flows into the combustion chamber 84 and the flame holding cylinder 91.

Then, the fuel is ejected from the fuel ejection nozzles 85, 85 of the tubular burner bodies X ₁ , X _{2 in} an atomized state, and the fuel is ignited by the respective ignition plugs 86, 86 to perform combustion. be able to.

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

[0018]

[Problems to be solved by the device]

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

That is, as shown in FIGS. 5 and 6, for example, only one cylindrical burner body X ₂ is used and the other cylindrical burner body X ₁ is not used, that is, in a fire extinguishing state. even some cases, the combustion air is not tubular burner body X ₂ but also flows the combustion air to the tubular burner body X _1, and passes through the same tubular burner body X _1, combustion It will flow into the chamber 80a.

Therefore, the outer surface of the combustion flame F extending from the tubular burner body X ₂ into the combustion chamber 80a is cooled on the tubular burner body X ₁ side, and the combustion state in the combustion chamber 80a deteriorates. May generate odor, carbon monoxide, or smoke.

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

[0022]

[Means for Solving the Problems]

 According to the present invention, a plurality of gun-type burners are arranged in parallel on the other side of a combustion chamber having a heat exchanger on one side, and a plurality of combustion air sent by a blower fan Among the gun type burners, the gun type burner device which is continuously distributed not only to the burner in the ignited state but also to the burner in the extinguished state, has a flame cooling with a predetermined height and width between each gun type burner. The present invention relates to a gun-type burner device in which the interior of a combustion chamber is divided into a plurality of partial combustion chambers by providing a partition plate for prevention.

The present invention is also characterized in that, in the above-mentioned configuration, a notch opening is formed in a part of the flame cooling prevention partition plate.

[0024]

【Example】

Hereinafter _{, the} present invention will be described _in detail with reference to the embodiments shown in the accompanying drawings.

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

As shown in the figure, the petroleum water heater B has 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 the casing 10. The air supply fan 13 connected through the cylinder 12 and the exhaust ducts 14 and 15 connected to the lower end of the heat exchanger are arranged.

2 to 4 show the entire structure of a gun type burner device A which is a main part of the present invention.

As shown in the figure, the gun-type burner device A is composed of a plurality of cylindrical burner bodies X _{1 and} X ₂ arranged in parallel.

First, the structure of the one-sided cylindrical burner body X ₁ will be described.

As shown in the figure, a combustion cylinder 23 including an outer cylinder 21 and an inner cylinder 22 is attached to the rear opening of the heat exchanger 20 in which the heat exchange fins 19 are arranged in the combustion chamber 18. That is, the combustion cylinder 23 is attached by connecting the flange 21b provided at the lower end of the outer cylinder 21 to the upper wall of the heat exchanger 20.

A combustion chamber 24 is formed in the inner cylinder 22, and a fuel injection nozzle 25, which is a return-type pressure spray nozzle, is attached to a position behind the combustion chamber 24.

An ignition plug 26 having one end connected to the ignition transformer Tr ₁ is arranged in front of the tip of the fuel injection nozzle 25.

Further, a stabilizer S ₁ is provided immediately before the fuel injection nozzle 25 to ensure the stability of the combustion flame, and the stabilizer S ₁ has a large number of inclined holes around the central opening 27. It is formed from a disc formed by cutting and raising 28.

The stabilizer S ₁ is continuous with the inner cylinder 22 and is surrounded by a flame holding cylinder 31 having a large number of secondary air inflow holes 30.

On the other hand, the outer cylinder 21 and the inner cylinder 22 have concentric outer cylinder extension portions 21a and inner cylinder extension portions 22a, respectively, which are connected to each other at their rear portions. The rear end is connected to the air-sending cylinder 32 that communicates with the air-sending fan 32.

Further, the sending cylinder 24 is partitioned by a partition wall 44 up to the middle.

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

Further, damper devices D _{1 and} D ₂ for switching air flow passages are arranged at the rear ends of the primary air flow passage 33 and the secondary air flow passage 34, respectively. As the air flow path changeover damper equipment D _1, D _2, can be present applicant have use those of the structure shown in Japanese Patent Application No. 3 11016 previously.

Next, the structure of the other side tubular burner body X ₂ will be described.

As shown in the figure, a combustion cylinder 43 composed of an outer cylinder 41 and an inner cylinder 42 is attached to the rear opening of the combustion chamber wall 20. That is, the combustion cylinder 43 is attached by connecting the flange 41b provided at the lower end of the outer cylinder 41 to the upper wall of the combustion chamber wall 20.

Inside the inner cylinder 42, a simplex type fuel ejection nozzle 45 is attached.

Further, a stabilizer S ₂ is provided immediately before the fuel injection nozzle 45 in order to ensure the stability of the combustion flame, and the stabilizer S ₂ has a large number of inclined holes around the central opening 47. 48 is cut and raised to be formed from a disc.

Further, the stabilizer S ₂ is surrounded by a flame holding cylinder 51 which is connected to the tip of the inner cylinder 42 and has a large number of secondary air inflow holes 50.

On the other hand, the outer cylinder 41 has an outer cylinder extension part 41 a continuously provided at a rear portion thereof, and further, a rear end of the outer cylinder extension part 41 a communicates with a feed cylinder 24 communicating with the air supply fan 32. It is connected.

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

An air flow path switching damper device D ₃ is arranged at the rear ends of the primary air flow path 53 and the secondary air flow path 54.

The air flow path switching damper device D ₃ may also have the structure shown by the applicant in Japanese Patent Application No. 3 11 016.

With this configuration, the combustion air generated by the air supply fan 32 of each cylindrical burner body X ₁ , X ₂ passes through the outer cylinder extension parts 21a _, 41a and the inner cylinder extension part 22a, and the outer cylinder 21, 41 and the inner cylinders 22 and 42 to be split into primary combustion air and secondary combustion air, and then flow into the flame holding cylinders 31 and 51.

Then, the fuel can be jetted into the atomized state from the fuel jet nozzles 25 and 45 of the respective tubular burner bodies X ₁ and X ₂ , and can be burned by being ignited by the ignition plug 26. .

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

The present invention is substantially the same as that of the gun type burner apparatus A having the above-described configuration. (1) The gun type burner apparatus A is located immediately in front of the fuel injection nozzles 25, 45 of the adjacent tubular burner bodies X ₁ , X _2. The combustion chamber 18 in front of the flame holding cylinders 31 and 51 is divided into partial combustion chambers 18a and 18b by a flame cooling prevention plate 60 having a constant height and width, and (2) flame cooling prevention. A feature is that a part of the partition plate 60 is cut out to form a fire transfer opening 61, and the partial combustion chambers 18a and 18b are connected to each other through the opening 61.

That is, first, the first structural feature (1) will be described. As shown in FIGS. 2 to 4, the combustion space 18 in front of the flame holding cylinders 31, 51 has a rectangular plate shape. A partition plate 60 for preventing flame cooling is partitioned into the partial combustion chambers 18a and 18b, and the base end of the partition plate 60 is fixed to the top surface of the flame holding cylinder 51. The flame cooling prevention partition plate 60 has a height H and a width W that are necessary and sufficient to surely prevent the influence of the combustion air flow in the one side partial combustion chamber 18a on the other side partial combustion chamber 18b. Have

Therefore, for example, in the case of a fire extinguishing and using only _one tubular burner main body X ₁ and not using the other tubular burner main body X ₂ , the combustion air is generated by the tubular burner main body X ₁ not only, also flows the combustion air to the tubular burner body X _2, and passes through the same tubular burner body X _2, will flow into the corresponding partial combustion chamber 18b of the combustion chamber 18.

However, in the present embodiment, by installing the flame cooling prevention partition plate 60, the partial combustion chambers 18a, 18b of the tubular burner bodies X ₁ , X ₂ are reliably partitioned from each other. , The outer surface of the cylindrical burner body X ₁ of the combustion flame F extending from the cylindrical burner body X ₁ into the corresponding partial combustion chamber 18a extends from the cylindrical burner body X ₂ into the corresponding partial combustion chamber 18b. from being cooled by the air flowing can be reliably prevented, the combustion state of be that partial combustion chamber 18a corresponding to the cylindrical burner body X ₁ and good retention, or generate odors and carbon monoxide Therefore, it is possible to reliably prevent the generation of smoke.

Next, the second structural feature (2) will be described. As shown in FIGS. 2 to 4, the flame cooling prevention partition plate 60 is formed by cutting out the bottom portion and the central portion of the partition plate 60. Forming a fire transfer opening 61, the partial combustion chambers 18a, 18b located in front of the flame holding cylinders 31, 51 of the tubular burner bodies X ₁ , X ₂ through the fire transfer opening 61, respectively. I am in contact with each other.

Further, as shown in FIG. 2, the ejection nozzle ignition spark plug 26 is provided only on the one-sided cylindrical burner body X ₁ , and the spark plug 26 is connected to the ignition transformer Tr ₁ . .

With this configuration, even if a large required heat load is required, sparks can be generated by simply applying a high voltage from the ignition transformer Tr to the ignition plug 26 of the one-sided cylindrical burner body X _1. First, the fuel ejected from the fuel ejection nozzle 25 of the one-sided cylindrical burner body X ₁ burns, and then a part of the combustion flame quickly passes through the fire transfer guide passage P and the other-sided cylindrical burner body X 1 The fuel ejected from the _second fuel ejection nozzle 45 is ignited and burned.

In this way, the fuel injection nozzles 25, 45 of the plurality of cylindrical burner bodies X ₁ , X ₂ can be ignited by one ignition nozzle ignition plug 26 and ignition transformer Tr ₁ . Therefore, the ignition device can be manufactured at low cost, and the gun type burner device A with a large required heat load can be manufactured at low cost.

Further, since the ignition plug 25, the ignition transformer Tr _{1 and the} like need only be attached to one of the cylindrical burner bodies X ₁ , the assembling work of the gun type burner device A becomes easy.

[0060]

[Effects of the Invention] With the above configuration, the present invention has the following effects.

In the present invention, by installing the flame cooling prevention partition plate, the partial combustion chambers located in front of the flame holding cylinders of the respective tubular burner bodies can be reliably partitioned. Therefore, for example, even when all the tubular burner bodies are not operated, the combustion burner tubular burners flow through the extinguishing tubular burner bodies and flow into the combustion chamber. It is possible to reliably prevent the surface of the combustion flame from the main body from being cooled. This makes it possible to maintain a good combustion state in the combustion chamber, and reliably prevent generation of odor, carbon monoxide, and smoke.

In the present invention, a part of the flame cooling prevention partition plate is cut out to form a fire transfer opening, and the partial combustion chambers in front of the tubular burner bodies are connected to each other through the fire transfer opening. Even if only some of the tubular burner bodies are equipped with ejection nozzle ignition spark plugs, the ejection of other tubular burner bodies not equipped with ejection nozzle ignition spark plugs will be performed through the fire transfer guide passage. Since the mixed fuel ejected from the nozzle can also be ignited with certainty, all the burners can be brought into the ignited state.

As described above, since the ejection nozzles of the plurality of cylindrical burner bodies can be ignited by the single ejection nozzle ignition plug and the ignition transformer, the ignition device can be manufactured at a low cost and, in turn, a large size. It is possible to inexpensively manufacture a gun type burner device with the required heat load.

Since the spark plug, the ignition transformer and the like need only be attached to one of the tubular burner bodies, the work of assembling the gun type burner device becomes easy.

The petroleum water heater can be made compact.

[Brief description of drawings]

FIG. 1 is a sectional front view of an oil type water heater including 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.

3 is a view taken along line I-I of FIG.

4 is a view taken along the line II-II of FIG.

FIG. 5 is an explanatory diagram of an internal configuration of a conventional gun-type burner device.

6 is a view taken along the line III-III in FIG.

[Explanation of symbols]

A Gun type burner device B Petroleum water heater P Fire transfer guide passage S ₁ , S ₂ Stabilizer Tr Ignition transformer X ₁ , X ₂ Cylindrical burner body 11 Combustion chamber 25 Fuel injection nozzle 26 Injection nozzle Ignition plug for ignition 31 Flame holding Cylinder 31a Cutout 45 Fuel injection nozzle 51 Flame holding cylinder 60 Flame cooling prevention partition plate 61 Fire transfer opening

Front page continued (72) Zenji Fujiwara, Zenji Fujiwara, 43-1, Uozakihama-cho, Higashinada-ku, Kobe, Hyogo Nihon Yupro Co., Ltd. Inside Yupro Co., Ltd. (72) Yushi Nakata 43-1 Uozakihama-cho, Higashinada-ku, Kobe-shi, Hyogo Prefecture

Claims (2)

[Scope of utility model registration request] 1. A plurality of gun-type burners are arranged in parallel on the other side of a combustion chamber having a heat exchanger on one side, and a plurality of combustion air sent by an air-blowing fan is provided on the other side. Among the gun type burners, the gun type burner device, which is continuously distributed not only to the burner in the ignited state but also to the burner in the extinguished state, provides flame cooling with a predetermined height and width between each gun type burner. A gun type burner device characterized in that the combustion chamber is divided into a plurality of partial combustion chambers by providing a partition plate for prevention. 2. The gun type burner device according to claim 1, wherein a notch opening is formed in a part of the flame cooling prevention partition plate.