JPS58138910A - Vaporizing burner - Google Patents

Abstract

PURPOSE:To provide a vaporizing burner capable of keeping favorable vaporization and combustion, by elevating effectively the temperature of the whole of a vaporizing body that is being rotated to a temperature of a vaporizing atmosphere even in case that there is a few combustion. CONSTITUTION:When the operation of the burner is started, the vaporizing body 4 and a delivered air guide 8 are rotated at a high speed, and part of combustion air blown from an air delivering chamber 2 is delivered via an air delivering path 3 into a combustion chamber 1, while other combustion air is delivered into the air delivering path 3 and an air path 5, and is divided into two streams. One of the streams is vigorously jetted via a mixed gas path 12 from jet flame ports 11, and the other is vigorously jetted upward from a plurality of jet ports 15. Then when a fuel oil is delivered from an oil delivering pipe 16 to the base end of the rotated vaporizing body 4, the fuel oil is rapidly diffused and advanced by the centrifugal action of the vaporizing body 4 and the jetting action of the combustion air, is jetted as fine particles from the edge of a heat receiving surface 6 at the tip of the vaporizing body 4 against the inner surface of the combustion cylinder 1, and is ignited by an ignition plug 17 to generate flames in the combustion cylinder 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention effectively raises the temperature of the entire rotating vaporizing body to the vaporizing atmosphere temperature even when the amount of combustion is small, and accurately evaporates and vaporizes the supplied fuel, resulting in combustion. The present invention relates to a vaporizer that can continue good vaporization combustion over a long period of time by forming a mixed gas with commercial air.

A conical cylindrical vaporizer with a closed tip and an open base end is directly connected to the rotating shaft inserted into the combustion cylinder, and a blower tube with an air outlet opened on the tip side is inserted inside the wrinkled vaporizer. A mixture passage is formed between the vaporizer and the blower tube, and the base end is connected to the blower port, and the tip end is connected to the flame nozzle. It goes without saying that a vaporizing burner that evaporates from a combustion state, forms a mixed gas with combustion air, and performs vaporization and combustion was previously developed by the applicant.

By the way, the vaporized body of the vaporizing burner is heated to a uniform temperature as a whole by the heat receiving effect of the combustion amount, and generates uniform vaporized gas within a short period of time.

They were made of a material with the same wall thickness.

Therefore, when continuing vaporization combustion, it is important to heat the entire vaporized body to a substantially uniform temperature without causing temperature unevenness depending on the amount of combustion. It is not possible to evaporate the gas into a uniformly vaporized gas.

Therefore, when using a vaporizing burner with the above-mentioned five configurations to reduce the amount of fuel supplied and burn a small amount, by reducing the heat-receiving temperature and heat-receiving area, the entire vaporized body is uniformly heated to a temperature that evaporates into fuel. It becomes impossible to raise the temperature to
As a result, it is no longer possible to continuously generate a homogeneous mixed gas, and eventually the vaporization combustion is stopped.

In view of the above, the present invention opens the distal end, provides a ventilation passage at the bottom of the proximal end, and furthermore, the distal peripheral wall is continuous to form a thick heat receiving surface, and the proximal peripheral wall is continuous to form a thin evaporation surface. Inside the vaporized body integrally formed with the vaporized body, an air mixture passage is formed between the vaporized body and the proximal end connected to the ventilation passage, with the flame nozzle on the distal side opened toward the heat receiving surface. In addition to integrally connecting the air supply guide, the air supply guide is attached to a rotating shaft inserted into the combustion cylinder, and the vaporizer and the air supply guide are positioned in the combustion cylinder. Even when reducing the supply amount of oil and burning a small amount to reduce the heat-receiving temperature and heat-receiving area of the vaporized body, the entire vaporized body can be heated uniformly without any temperature unevenness, and the oil can be sent into the vaporized body. The present invention is intended to provide a vaporizing burner capable of accurately and continuously vaporizing a small amount of fuel at the door, thereby effectively performing vaporization combustion of a small amount over a long period of time. The configuration of such a vaporizing burner will be described with reference to a preferred embodiment shown in the accompanying drawings.

In Fig. 1, reference numeral 1 denotes a combustion tube with an open tip and a closed base end, and an air supply chamber 2 is connected to the base end side of the combustion tube 1. 2 and 2 are connected to each other via an air supply path 3 so that the insides thereof communicate with each other. Reference numeral 4 denotes a cylindrical vaporizer having an open tip and a ventilation passage 5 communicating with the air supply passage 3 at the bottom of the proximal side. It is formed into a shape that gradually expands outward in stages, and the peripheral wall on the distal end becomes a thick heat-receiving surface 6, and the peripheral wall on the proximal end becomes a thin evaporation surface 7. [It is integrally molded. Inside the vaporizer 4, there is a peripheral wall k on the tip side and a heat receiving wall 'i' of the vaporizer 4.
I 6 is equipped with an annular guide wall 9 that extends to become shorter and smaller in the direction, and an air supply guide 8 formed into a hollow cylinder shape with its base end open is connected to a plurality of connecting rods 10... . . . are integrally connected between the vaporizing body 4 and the air supply guide 8, and are connected to the ventilation passage 5 on the proximal side and the flame nozzle 1 on the distal side.
1 forms an air mixture passage 12 which is open toward the heat receiving surface 6. The air supply guide body 8 that integrally and continuously supplies the vaporized body 4 is
It is attached to the tip of the rotating shaft 13 inserted into the combustion cylinder 1 from the air supply chamber 2 via the air supply path 3, so as to cover the rotating shaft 13.

Flame opening 1 formed by the peripheral wall of the vaporized body 4 and the guide wall 9
A gas ejection partition plate 14 is disposed inside the gas ejection port 1 using a connecting rod 10, and the flame ejection port 11 is divided into two. In addition, a plurality of blowholes 15 are bored in the tip of the air guide body 8 so that a portion of the combustion air sent from the air feed chamber 2 is vigorously blown forward through the blowholes 15. ``It prevents the ceiling part of the guide body 8 from being heated and burnt out due to the vortex phenomenon of the combustion flames, and at the same time supplies the combustion flames rising from the flame nozzle 11 to promote the twisting of the flames. Reference numeral 16 denotes an oil feed pipe whose tip is opened into the base end side of the vaporizer 4, and 17 is an internal stopper.

FIG. 2 shows the other side of the vaporizing burner described above, in which the air supply guide 8' is formed in a shape substantially similar to the vaporizing body 4, and the connecting rod 10'
Either the number of gas discharge partition plates 14' was increased and the number of gas discharge partition plates 14' was increased to make the connection more durable.
In addition to subdividing 1', the base end bottom wall 1'a of the combustion tube 1'
A concave part 18 is provided in the center, and a ventilation passage 19 of an appropriate width is formed within the concave part 18 so that the base end of the vaporizer 4' is formed between the bottom wall 1a/ and the base end of the vaporizer 4'. This is done by placing the fuel in the position so that vaporization and combustion takes place.

Next, the operation of the present invention will be explained.

Now, when the burner is started, both the vaporizing body 4 and the air supply guide 8 are rotated at high speed, and a part of the combustion air blown in the air supply chamber 2 is transferred from the air supply path 3 into the combustion tube 1. In addition, the other combustion air is divided into two after passing through the air supply path 3° and the ventilation path 5,
Part of the combustion air passes through the air mixture passage 12 and ejects vigorously from the flame nozzle 11. At the same time, the other combustion air, which is divided into two, is ejected from a plurality of fumarole holes 15. It is often blown out.

Therefore, under such conditions, if oil is sent from the oil pipe 16 to the base end of the rotating fuel vaporized body 40, the fuel will be speeded up by the centrifugal action of the vaporized body 4 and the injection action of the combustion air. The heat-receiving surface 6 on the tip side becomes fine particles and is sprayed on the inner surface of the combustion tube 1, and when the ignition plug 17 ignites, a raw combustion flame is generated inside the combustion tube 1. As a result, the entire vaporized body 4 is heated by the raw combustion flames that increase in the combustion tube 1, and the temperature in the air mixture road 12 is raised to a vaporizing atmosphere temperature sufficient to quickly evaporate and vaporize the fuel. Therefore, once the temperature inside the hot air passage 12 has been raised to the vaporization atmosphere temperature, the fuel sent into the vaporization body 4 through the oil supply pipe 16 flows through the mixed air passage 12 from the proximal end toward the distal end ll1K. evaporates and becomes vaporized gas during diffusion and transfer, and
The generated vaporized gas is stirred and mixed with the circulating combustion air, and the complete mixed gas is vigorously blasted and cast into the thick heat-receiving surface 6.
It heats up intensely. Therefore, the oil pipe 16
Even if the amount of fuel φ is small due to the lack of fuel supply lids, all of the obtained vaporized combustion flame is blown onto the thick heat receiving surface 6 to heat the heat receiving surface 6 to a high temperature. Because it heats up,
Even without heating the entire vaporizing body 4, the thin evaporating surface 7 is heated and maintained at a uniform high temperature by conduction heat, accurately evaporating the supplied fuel, and converting the generated vaporized gas into combustion air. By stirring and mixing, it is possible to continuously combust the fume gas from the flame nozzle 11 toward the heat receiving surface 6 as completely warm gas.

Advantageously, the present invention has an open distal end, a ventilation passage 5 at the bottom of the proximal end, a thick heat receiving surface 6 on the distal peripheral wall, and a thin evaporation surface 7 on the proximal end g@chest wall. Inside the vaporizer 4, which is formed continuously and integrally so as to The air supply guide 8 is integrally connected so as to form a mixed air passage 12, and the air supply guide 8 is attached to a rotary shaft 13 inserted into the combustion cylinder 1 to connect the vaporized body 4 and the air supply. Since the guide body 8 is positioned inside the combustion tube 1,
For example, when a small amount of fuel is supplied into the vaporizer 4, the fuel is evaporated from a raw combustion state by rotating the vaporizer 40 times, and a small amount of fuel is vaporized and burned as mixed gas by mixing with combustion air. Even if there is, all of the vaporized combustion flame obtained from the combustion flame is intensively ejected from the flame nozzle 11 to the thick heat receiving 1ij6 provided at the tip 111 of the vaporized body 4, and the flame is heated to a high temperature. By heating, the temperature of the evaporative vaporized l1nT, which has become thinner, is raised uniformly by the heat transfer effect, and the small amount of fuel that is sent quickly evaporates and vaporizes, allowing it to be effectively vaporized and burned as a mixed gas. Even if the vaporizing burner is equipped with a rotating vaporizing body 4, it is possible to continue small-capacity vaporizing combustion for a long period of time without interruption.

[Brief explanation of the drawing]

The drawings show an embodiment of the vaporizing burner according to the present invention, in which FIG. 1 is a partially cutaway longitudinal sectional front view, and FIG. 2 is a partially cutaway longitudinal sectional front view of the other side. 1.--Combustion cylinder, 4.. Gasified body, 5.. Ventilation passage, 6.
Heat receiving surface, 7 Evaporation surface, 8 Air supply guide, 11 Flame nozzle, 12 Air mixture passage, 13 Rotating shaft patent applicant Dowa Co., Ltd.

Claims (1)

[Claims] A vaporizer with an open tip and a ventilation passage provided at the bottom of the proximal end, and which is continuously and integrally formed so that the distal peripheral wall is a thick heat receiving surface and the proximal peripheral wall is a thin evaporation surface. Internally, an air supply guide body 5 is integrated so that an air mixture passage is formed between the vaporized body and the proximal end or connected to the ventilation passage, and the flame nozzle on the distal side is open toward the heat receiving surface. A vaporizing burner characterized in that the air supply guide is connected to the combustion cylinder, and the gasification body and the air supply guide are mounted on a rotating shaft inserted into the combustion cylinder and are positioned in the combustion cylinder.