JP2924131B2 - Oil burning equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a gasification type oil burning device.

2. Description of the Related Art In recent years, there has been an increasing demand for shortening a preheating time, maintaining a vaporizing ability, and preventing tar formation in a vaporization type oil combustion device.

As shown in FIG. 5, a conventional device of this type is a vaporizing cylinder.
A heater 32 was built into the bottom of the base 31, and a vaporization chamber 34 was formed which was partitioned by a vaporization cylinder lid 33, and a heat receiving wall 35 was ring-shaped and extended from the vaporization cylinder 31. Then, the vaporizing cylinder inlet 36 opens tangentially on the peripheral surface of the vaporizing chamber 34, and faces the oil feed nozzle 37 connected to an oil pump (not shown). The burner head 38 was composed of a flame port plate 39, a flame port net 40, and a flame port cap 41, and was provided on the vaporization cylinder lid 33. The air chamber 42 contains the vaporizing cylinder 31 and has a combustion fan 43.
The secondary air port 44 was opened at the upper part of the air chamber 42.

In the above configuration, the vaporization cylinder is turned on by the energized heater 32.
31 is preheated and maintained at a high temperature, and the air sent from the combustion fan 43 flows into the vaporization chamber 34 from the vaporization cylinder inlet 36 and the vaporized air forming a swirling flow and the secondary air discharged from the secondary air port 44 The kerosene sent from the oil pump collides with the inner peripheral surface of the vaporization chamber 34 from the oil feed nozzle 37,
Further, the gas is vaporized while flowing on the bottom surface of the vaporizing cylinder 31 by the vaporized air. Then, the generated vaporized gas is mixed with the vaporized air to become a premixed gas, and is ejected from the flame port plate 39. This premixed gas starts burning by the discharge of the ignition electrode (not shown) in the gap between the heat receiving wall 35 and the burner head 38, and
The combustion is promoted by the secondary air. Then, when the combustion heat received by the heat receiving wall 35 is conducted to the vaporizing cylinder 31, the heater 32 is turned on and off to maintain the vaporizing cylinder 31 at the set temperature.

Problems to be Solved by the Invention In such a configuration of the conventional oil combustion device, the heater 32
Is provided at the bottom of the vaporizing cylinder 31, so that it takes time to preheat the inner peripheral surface of the vaporizing cylinder 31 by the heater 32. Further, the inner peripheral surface of the vaporizing cylinder 31 colliding with the kerosene is deprived of the latent heat of vaporization by the kerosene, and the temperature is locally lowered, so that there is a problem that the vaporization ability is reduced. The kerosene is turned into a vaporizing cylinder by the swirling flow formed from the vaporized air.
The heater 32 is located in the center of the bottom of
Despite being provided at the bottom of the 31, the bottom center of the vaporization cylinder 31 is deprived of the latent heat of vaporization by kerosene as described above, and the temperature is locally lowered. There was a problem that the generation of tar and the generation of tar occurred.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a petroleum combustion device capable of shortening a preheating time, maintaining a vaporization ability, and preventing tar generation.

Means for Solving the Problems In order to achieve the above object, the present invention provides a uniform chamber, a burner head provided on the upper part of the uniform chamber, and an upper part on one end side of the uniform chamber so as to communicate with the uniform chamber. A vaporizer heated by a flame formed on the burner head, a vaporizer provided on the inner wall of the vaporizer heated by the flame, and a vaporizer provided in the vaporizer. It is provided with a heater, a carburetor inlet opened to face the vaporization section, and an oil feed nozzle provided to face the vaporization section.

Operation According to the present invention, since the heater is built in the vaporizing section by the above-described configuration, the vaporizing section is efficiently preheated, and the preheating time can be completed in a short time. In addition, kerosene that collides with the vaporizer and diffuses and tries to flow down the vaporizer is pushed out by the vaporized air that collides with the vaporizer, and is vaporized in the entire vaporizer without local stagnation, preventing tar formation. it can. Further, since the entire vaporizing section is vaporized, the local temperature drop of the vaporizing section is small, and the heater is heated by the heater, so that the local temperature drop of the vaporizing section can be suppressed and the vaporizing ability can be maintained.

Embodiment An embodiment of the present invention will be described below with reference to FIGS.

As shown in the figure, a burner head 2 is provided above a box-shaped uniform chamber 1, and a premixed gas inlet 3 is connected to the burner head 2.
And is provided above the uniform chamber 1. And
The vaporizer 4 is provided so as to cover the premixed gas inlet 3 and to have a part of the outer wall heated by the flame from the burner head 2. The vaporizer 4 has a vaporizing chamber 5 at an upper part thereof, and has an inclined vaporizing part 6 formed by projecting the outer wall on the burner head 2 side above the burner head 2 and a surface vaporizing part 8 having a communication port 7 opened. Have. The mixing passage 9 connects the vaporizing chamber 5 and the uniform chamber 1 to each other. U-shaped heater
Reference numeral 10 is incorporated in the inclined vaporizing section 6, and the two linear portions of the heater 10 are arranged near the upper portion of the inclined vaporizing section 6 and near the bottom vaporizing section 8, respectively. The vaporizer inlet 11 is opened to the lid 12 at the lower portion of the inclined vaporizer 6 so as to face the vicinity of the U-shaped portion of the heater 10. The oil feed nozzle inlet 13 is opened in the lid 12 so as to face the vicinity of the U-shaped portion of the heater 10 above the inclined vaporizing section 6 so that the oil feed nozzle 14 faces. The heat receiving portion 15 is formed of a heat receiving fin protruding above the burner head 2 from the outer wall of the inclined vaporizing portion 6. And rectification opening 16
Is connected to the flow straightening plate 17 provided inside the mixing passage 9 with the communication port 7.
The opening is such that the opening area increases as the distance from the opening increases. The premixed gas outlet 18 is opened at the lower side of the carburetor 4, and the combustion fan 19 is communicated with the air chamber 20. The heat insulating material 21 is provided so as to surround the uniform chamber 1 and the vaporizer 4.

Next, the preheating operation in this configuration will be described. heater
When the power is supplied to the heater 10, the temperature of the vaporizer 4, especially the inclined vaporizer 6, rises rapidly to the set temperature, and then the heater 10 is turned on and off to maintain the temperature. In this case, the heater 10
Are built in the inclined vaporizer 6, the inclined vaporizer 6 is efficiently preheated, and the preheating time can be completed in a short time. That is, it is not necessary to preheat the entire vaporizer 4 to the set temperature, and the preheating is completed when only the inclined vaporizer 6 reaches the set temperature.

Next, the combustion operation will be described. The air supplied from the combustion fan 19 is divided into two systems: vaporized air supplied from the carburetor inlet 11 and the oil supply nozzle inlet 13 to the carburetor 4 and secondary air supplied to the burner head 2. The vaporized air scatters after colliding with the lower portion of the inclined vaporizer 6, but most of the vaporized air rises along the inclined vaporizer 6. On the other hand, the kerosene is ejected from the oil supply nozzle 14 into the vaporization chamber 5, collides with the upper part of the inclined vaporizer 6, diffuses, and tries to flow down the inclined vaporizer 6.
The kerosene is spread by the dispersed vaporized air. In particular, in this embodiment, the gas is expanded by the vaporized air rising along the inclined vaporizing section 6 and vaporized while expanding the surface of the inclined vaporizing section 6 to become a vaporized gas. That is, since the kerosene diffuses throughout the inclined vaporizing section 6, the local temperature decrease of the inclined vaporizing section 6 is small, and since the heater 10 is built in the inclined vaporizing section 6, the heater 10 instantaneously operates by the heater 10. When heated, the local temperature decrease of the inclined vaporizing section 6 can be suppressed,
As a result, there is an effect that the vaporization ability can be maintained. Moreover, since kerosene is vaporized without staying in the inclined vaporization section 6, there is an effect that tar generation can be prevented. Then, the vaporized gas flows from the communication port 7 through the mixing passage 9 to the uniform chamber 1 while being mixed with the vaporized air, and becomes a premixed gas.
Furthermore, the burner head 2
Since the fuel is ejected from the fuel and burns, the combustion characteristics are extremely improved.

Next, a case will be described in which the amount of vaporized air is reduced due to a decrease in the capacity of the combustion fan 19 or clogging of the air chamber 20 with dust. The kerosene that has collided and diffused with the upper portion of the inclined vaporizing section 6 has a weak action of pushing and expanding the vaporized air rising along the inclined vaporizing section 6, and flows down the inclined vaporizing section 6 to reach the bottom vaporizing section 8. However, since the bottom vaporizing portion 8 is heated by the linear portion of the heater 10 and is maintained at the set temperature, kerosene is vaporized on the upper surface of the bottom vaporizing portion 8 and no poor vaporization occurs.

Effects of the Invention As is clear from the above embodiment, the following effects can be obtained according to the petroleum combustion apparatus of the present invention.

(1) Since the heater is built in the upper and lower parts of the vaporizing part,
There is an effect that the vaporizing section is efficiently preheated and the preheating time can be completed in a short time.

(2) Since the vaporizer inlet is opened facing the vaporizing section and the oil feed nozzle is also facing the vaporizing section, kerosene diffuses throughout the vaporizing section. It is small and is immediately heated by the heater, so that the local temperature decrease of the vaporizing section can be suppressed, and the vaporizing ability is maintained.

(3) Since kerosene vaporizes without staying in the vaporization section,
As a result, there is an effect that tar generation can be prevented.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an oil-burning apparatus according to one embodiment of the present invention, FIG. 2 is a partially cross-sectional side view showing a relationship between a vaporizer and a uniform chamber of the oil-burning apparatus, and FIG. FIG. 4 is an enlarged perspective view of a carburetor of the oil burning device, and FIG. 5 is a sectional view of a conventional oil burning device. 1 ... uniform chamber, 2 ... burner head, 3 ... premixed gas inlet, 4 ... vaporizer, 5 ... vaporization chamber, 6 ... inclined vaporizer,
9: mixing passage, 10: heater, 11: vaporizer inlet, 14
...... Oil nozzle.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F23D 11/10 F23D 11/44

Claims (1)

(57) [Claims] 1. A uniform chamber, a burner head provided at an upper portion of the uniform chamber, and a burner head provided at an upper portion at one end of the uniform chamber so as to communicate with the uniform chamber. A vaporizer heated by the flame to be heated, a vaporizer provided on the inner surface of the outer wall heated by the flame of the vaporizer, a heater built in upper and lower portions of the vaporizer, and a vaporizer facing the vaporizer. An oil burning device comprising: an open vaporizer inlet; and an oil feed nozzle provided to face the vaporizing section.