JP3136911B2 - Combustion equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water supply combustion apparatus mainly used for home use.

[0002]

2. Description of the Related Art A conventional combustion apparatus has a configuration shown in FIG. That is, in FIG. 4, reference numeral 1 denotes a burner head, a burner head case 2 having a U-shaped periphery, and a U-shaped opening surface closed by a carburetor 4 having a heater 3 and a burner head 1 by a burner head 1. 5. Reference numeral 6 denotes a combustion chamber, which is located above the burner head 1, and has a carburetor heat receiving section 7 in which a part of the carburetor 4 is protruded into the combustion chamber 6 in order to obtain heat by combustion flame. Further, the burner 5 is a nozzle 9 which is a fuel injection port which communicates with an electromagnetic pump 8 which supplies fuel, a vaporizer 4 which vaporizes the fuel injected from the nozzle 9, and a blower which takes in air for combustion from outside air. A mixing chamber 11 serving as a passage for mixing the fuel vaporized by the vaporizer 4 and the air taken in from the blower 10 to generate a mixture and supplying the mixture into the burner head 1; And a guide plate 13 for equalizing the flow of the air-fuel mixture between the mixing chamber 11 and the air-fuel mixture passage 12.
And a blow box 14 for guiding the air taken in by the blower 10 to the mixing chamber 11. Fifteen
A vaporizer lid attached to the vaporizer 4 seals the vaporized gas to the outside. Reference numeral 16 denotes a vaporizer thermistor which detects the vaporization surface temperature of the vaporizer 4 and controls the heater 3 to be turned on / off by a control device 17 so that the vaporization surface temperature becomes the optimum.

In this conventional combustion apparatus, when the burner 5 is to be burned, the fuel is supplied from the nozzle 9 to which the fuel is supplied from the electromagnetic pump 8, and the fuel is vaporized from the vaporizer 4 controlled to the optimum vaporization surface temperature by the control device 17. The gas introduced into the mixing chamber 11 via the blower box 14 by the blower 10 and the mixing chamber 1
The air-fuel mixture is mixed in the air-fuel mixture 1 to form an air-fuel mixture. The air-fuel mixture is made uniform by the guide plate 13 when passing through the air-fuel mixture passage 12, and then sent to the burner head 1 to burn the burner 5.

[0004]

However, in such a conventional combustion apparatus, the air-fuel mixture mixed in the mixing chamber is blown by the blower 1.
Because of the wind speed of 0, the air-fuel mixture easily flows downstream of the burner head 1 and the concentration of the air-fuel mixture also increases. The flame due to combustion tends to be thin on the carburetor side of the burner head and dense on the downstream side. For this reason, the amount of flame for heat reception of the vaporizer heat receiving unit 7 was small, the amount of heat received was low, the operation time of the heater 3 was increased, and as a result, the power consumption was large.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks and increases the amount of flame on the vaporizer heat receiving section side by increasing the flow of air-fuel mixture in the mixing chamber near the vaporizer side of the burner head. It is intended to increase the amount of heat received by the vaporizer and reduce power consumption.

[0006]

A plurality of burner heads arranged in the longitudinal direction, a carburetor provided on one side of the burner head, a combustion chamber formed above the burner head, and the carburetor A vaporizer heat receiving portion having a portion of the vaporizer protruded into the combustion chamber, a blower that takes in vaporized gas vaporized by the vaporizer and air for combustion, and mixing and mixing air taken in by the blower. A mixing chamber serving as a passage for generating gas and supplying the gas to the burner head, and a carburetor guide cut and raised so as to easily supply the mixture generated by the mixing chamber to the carburetor heat receiving unit side. A guide plate is provided at a lower portion of the burner head, and is further provided at a position closer to the carburetor side to less than 1/3 of the mixture passage.

[0007]

The operation of this technical means is as follows.
That is, by providing a guide plate for increasing the flow of the air-fuel mixture to the vicinity of the vaporizer heat receiving portion between the mixing chamber and the air-fuel mixture passage, the flow of the air-fuel mixture in the mixing chamber is provided near the vaporizer side of the burner head. It is possible to increase the supply and increase the amount of flame at the carburetor heat receiving section side, efficiently receive heat at the carburetor heat receiving section, and reduce power consumption. Furthermore, the strength of the burner head can be increased by bringing the guide plate into an integral structure and closely contacting the lower part of the burner head so that the carburetor-side guide cut and raised by the guide plate is fitted inside the burner head.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a system of a combustion apparatus according to an embodiment of the present invention, FIG. 2 is a perspective view of a guide plate in the embodiment, and FIG. FIG.
A burner head 21 has a U-shaped burner head case 22 and a U-shaped opening surface which is closed by a carburetor 24 having a heater 23.
1 constitutes a burner 25. Reference numeral 26 denotes a combustion chamber formed above the burner head 21, and a carburetor heat receiving portion 27 in which a part of the carburetor 24 is protruded into the combustion chamber 26 in order to obtain heat received by a combustion flame. I have. Reference numeral 28 denotes a vaporizer lid which is attached to the vaporizer 24 and seals vaporized gas to the outside. The vaporizer lid has an opening above the vaporizer lid 28, and supplies fuel to the vaporizer 24 toward the opening. A nozzle 30 that is a fuel injection port that is connected to the electromagnetic pump 29 is provided. A blower 31 for taking in air for combustion from outside air; and a passage for mixing the fuel vaporized by the carburetor 24 and the air taken in from the blower 31 to generate a mixture and supply the mixture to the burner head 21. The mixing chamber 32, a mixture passage 33 formed downstream of the mixing chamber 32, and a flow of the mixture near the vaporizer heat receiving portion 27 between the mixture passage 33 and the mixing chamber 32. A guide plate 35 having a guide 34 cut and raised so as to be increased is provided at a lower portion of the burner head 21 on the carburetor 24 side. 36 is a blower box for the blower 3
The air taken in from 1 is guided to the mixing chamber 32. Reference numeral 37 denotes a vaporizer thermistor that detects the vaporization surface temperature of the vaporizer 24 and controls the controller 3 so that the vaporization surface temperature becomes the optimum vaporization surface temperature.
8 controls ON / OFF of the heater 23.

Next, the operation will be described. When the burner 25 is burned, the fuel is injected into the vaporizer 24 from the nozzle 30 supplied with the fuel from the electromagnetic pump 29 to generate a vaporized gas. The mixed air is mixed with the taken air in the mixing chamber 32 to generate an air-fuel mixture. This mixture is supplied to the blower 31
Is dispersed in the mixing chamber 32 by the wind speed of the air-fuel mixture, and thereafter, the mixture path 3 formed downstream of the mixing chamber 32 is formed.
3 and a guide plate 35 having a structure protruding on both sides thereof.
Is supplied to the burner head 21 and the burner 25 burns. At this time, the flow of the air-fuel mixture is easily supplied to the carburetor heat receiving section 27 side by the carburetor side guide 34 of the guide plate 35. The mixture is made uniform and a stable flame is obtained.

In the construction and operation described above, the present invention provides a guide plate 3 under the burner head 21 as shown in FIGS.
4, the flow of the air-fuel mixture in the mixing chamber 32 is also supplied to the vaporizer heat receiving section 27 side, so that the vaporizer 2
The four-side flame is also stabilized, the amount of heat received by the vaporizer heat receiving section 27 is increased, and the power consumption is reduced.

Further, as is clear from the results of the guide plate mounting position study graph in FIG. 3, it is more effective to provide the effective range of mounting the guide plate 34 to one third or less of the entire burner head 21 on the carburetor 24 side. Above that, the balance of the air-fuel mixture supplied to the burner head becomes unstable.

[0012]

As is apparent from the above embodiment, the combustion apparatus of the present invention makes the air-fuel mixture uniform during combustion, stabilizes the flame, increases the amount of heat received by the carburetor, and reduces the amount of heat received by the carburetor heater. The operation time is reduced and the power consumption is reduced. In addition, the guide plate protrudes inside the burner head, and since it is an integrated structure, the burner head is reinforced with double layers, preventing thermal deformation of the burner head during long-term use and ensuring reliability. Improve the performance. Further, since the guide plate is mounted at a position of 1/3 or less of the entire burner head on the carburetor side, it is possible to supply a stable mixture.

[Brief description of the drawings]

FIG. 1 is a system side view of a combustion apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view of a guide plate in the embodiment.

FIG. 3 is a graph for examining a mounting position of a guide plate in the embodiment.

FIG. 4 is a system side view of a conventional combustion device.

[Explanation of symbols]

 Reference Signs List 21 burner head 24 carburetor 26 combustion chamber 27 carburetor heat receiving part 31 blower 32 mixing chamber 33 mixed gas passage 34 guide 35 guide plate

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seiichi Shinoda 1006 Kadoma, Kazuma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-5-296417 (JP, A) JP-A-5-205 272716 (JP, A) JP-A-5-60307 (JP, A) JP-A-59-202307 (JP, A) JP-A 63-154908 (JP, U) JP-A 63-159612 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) F23D 11/10 F23D 11/40-11/44

Claims (3)

(57) [Claims] A plurality of burner heads arranged in a longitudinal direction, a vaporizer provided on one side of the burner head, a combustion chamber formed above the burner head, and a part of the vaporizer. A carburetor heat receiving portion projected into the combustion chamber,
A blower that takes in vaporized gas and air for combustion that has been vaporized by the vaporizer, and a mixing chamber that becomes a passage that mixes air taken in by the blower to generate a mixture and supply the mixture to the burner head. And a guide plate having a vaporizer guide cut and raised so as to easily supply the air-fuel mixture generated by the mixing chamber also to the vaporizer heat receiving unit side, at a lower portion of the burner head. 2. The combustion apparatus according to claim 1, wherein the guide plate has an integral structure projecting from both sides of the mixing chamber and the burner head, and is closely attached to a lower portion of the burner head so as to fit into the burner head. 3. The guide plate is mounted so that its mounting position is close to the carburetor side of the burner head and less than 1/3 of the mixture passage.
A combustion device as described.