JPS5823064Y2 - Live combustion ignition accelerator in vaporizing burner - Google Patents

Description

[Detailed description of the invention] The present invention is a vaporizing burner in which a rotary vaporizing tube is installed in a bottomed cylindrical combustion tube. The fuel sprayed into the combustion cylinder is rapidly spread around the entire circumference of the combustion cylinder,
Accordingly, the present invention relates to an ignition promoting device that can ensure ignition when starting a burner, can bring about a stable raw combustion state immediately after ignition, and does not cause ignition failure or combustion failure even when a small amount of oil is supplied. .

Conventionally, in this type of vaporizing burner, fuel is sprayed into the combustion cylinder from the fuel scattering gap of the rotating vaporization cylinder to cause live combustion in the combustion cylinder, and then vaporized by heating by the combustion flame. The combustion state is then maintained, but immediately after the burner starts, the fuel sprayed into the combustion cylinder is not sufficiently distributed around the entire circumference of the combustion cylinder, so it is easy to suffer from ignition failure or combustion failure. This tendency is particularly noticeable when the amount of oil supplied is small.

For this reason, the heating of the rotary vaporization cylinder and combustion cylinder due to raw combustion is not sufficient, and the combustion flame after transitioning to vaporization combustion often becomes lifted and extinguished, resulting in the leakage of unburned oil. There was a risk of fire, etc.

In view of the above, the present invention provides an annular air-feeding membrane holder having an inwardly curved surface on its upper edge from the bottom surface to slightly above the fuel scattering gap on the inner circumferential surface of the combustion cylinder, thereby forming a fume chamber and a combustion cylinder. A plurality of swirling guide bodies are disposed in the fumarole gap formed between the inner bottom surfaces to form a forced wind swirling path leading from the fume chamber to the inside of the combustion cylinder, and the space surrounded by the air-feeding membrane generator is By installing an ignition plug in the combustion cylinder, a swirling wind is generated within the air supply membrane generator in the combustion cylinder, and this swirling wind rapidly moves the fuel sprayed from the rotating carburetor into the combustion cylinder. It can be distributed all around the circumference, ensuring ignition even when refueling in a small amount, and creating a stable raw combustion state immediately after ignition, quickly creating a vaporizing atmosphere in the rotary vaporizing cylinder and combustion cylinder. The present invention is intended to provide a main combustion ignition accelerator in a vaporizing burner that is capable of rapidly transitioning to a vaporizing combustion state and maintaining a stable vaporizing combustion state by raising the temperature. The preferred = shown in the drawing
An example will be explained.

1 is a bottomed cylindrical combustion tube with an open upper end; 2 is an outer tube that covers the outer periphery of the combustion tube; a gas chamber 3 is formed between the combustion tube 1 and the outer tube 2; A large number of flame holes 4 are bored on substantially the entire circumferential surface of the combustion tube 1 .

Reference numeral 5 denotes a rotary carburetor cylinder having a closed top and an open base. The rotary shaft 7 is fixedly attached to the tip of the rotating shaft 7 with a nut 8.

Reference numeral 9 denotes a blower tube, and the tip of the blower tube 9 is opened so as to be inserted deeply into the rotary vaporizer tube 5, and the proximal end thereof is communicated with the blower chamber 6.

The base end edge of the rotary vaporizing cylinder 5 is formed in an outwardly projecting shape, and a fuel scattering gap 12 is formed between the projecting part 10 and the mixed cylinder 11.

An air mixture passage 13 is formed between the rotary vaporizing cylinder 5 and the blowing cylinder 9, and the air mixture passage 13 is communicated with the gas chamber 3 via a passage 14.

Reference numeral 15 denotes a fume chamber, which is formed between the base end open side of the rotary carburetor 5 and the bottom surface of the combustion tube 1 with a rotation gap 17 in between. Combustion tube 1
A fumarole gap 18 is formed along the bottom surface of the vent.

The fumarole chamber 15 is communicated with the ventilation chamber 6 via a ventilation passage 16.

An annular air supply membrane holder 19 is located near the bottom of the inner peripheral surface of the combustion tube 1.
An inwardly curved surface 19a is formed on the upper edge of the air membrane generator 19, and the fuel scattering gap 12 is a space surrounded by the air membrane generator 19. Located within.

Further, in the fume gap 18 formed between the fume chamber 15 and the bottom surface of the combustion cylinder 1, an arc-shaped turning guide body 20.
. . . are mutually forced wind swirls in one direction 21.
The forced air blown from the fume chamber 15 into the combustion cylinder 1 through the fume gap 18 flows through the forced air swirl generation path 21.・・・・・・
・When passing through, the wind direction is changed so that it turns in one direction,
Swirling air is blown along the inner bottom surface of the combustion tube 1.

The above-mentioned turning guide bodies 20, 20, . . . may be fixed either to the bottom surface of the combustion cylinder 1 or to the side of the blow chamber 15.

Reference numeral 22 denotes a spark plug, and the electrode of the spark plug 22 faces into a space surrounded by the air-feeding membrane generator 19.

Note that 23 is a fuel diffuser, and 24 is a fuel supply pipe. The fuel diffuser 23 is fixed to the top of the rotary vaporizing cylinder 5, and the tip of the fuel pipe 24 is closely opposed to the outer peripheral surface of the fuel diffuser 22. ing.

25 is a drain pipe connected to the bottom of the combustion tube 1;
6 is a drain pipe connected to the bottom of the gas chamber 3.

Next, I will explain the effect of the main money plan.

Now, when starting the burner, forced air is sent from the blow chamber 6 toward the blow tube 9, the rotary carburetor tube 5 is rotated at high speed, and fuel is supplied from the oil supply pipe 24. The fuel is injected from the tip port onto the surface of the fuel diffuser 23, uniformly diffused into the rotary vaporizing tube 5 by centrifugal action, and further sprayed into the combustion tube 1 through the fuel scattering gap 12.

On the other hand, a part of the forced air blown from the ventilation chamber 6 to the fumarole chamber 15 via the ventilation passage 14 is blown into the combustion tube 1 from the fume gap 18 formed between the bottom surface of the combustion tube 1. When this forced wind passes through the gap 18, it is blown out as a swirling wind that flows in one direction through the forced wind swirling paths 21, 21, . . . formed in the iron part. The gas flows along the inner surface of the gas membrane generator 19 and flows upward of the combustion tube 1 while creating a vortex within the space surrounded by the gas membrane generator 19.

Therefore, the fuel sprayed from the rotary vaporizer cylinder 1 into the combustion cylinder 1 as described above is carried by the swirling wind and rapidly spreads over the inner circumferential surface of the air-blowing membrane generator 19, and is ignited by the ignition plug 22. This action ensures ignition, and raw combustion occurs throughout the combustion tube 1 at the same time as ignition.

When raw combustion occurs in the combustion tube 1, the rotary vaporization tube 5 is heated to a high temperature by the combustion flame, and the fuel supplied as described above is rapidly evaporated and vaporized, and the air blown from the blower tube 9 is mixed with the air. The mixture is mixed in the air mixture passage 13 to become hot gas, which is stored in the gas chamber through the passage 14 and is ejected at a constant pressure into the combustion tube 1 from the flame holes 4, 4... However, inside the combustion tube 1, the raw combustion state shifts to a vaporization combustion state, and thereafter the vaporization combustion state is maintained.

By the way, when starting the burner, the combustion tube 1 is removed from the rotary carburetor 5.
As mentioned above, the fuel sprayed into the combustion tube 1 is rapidly spread all around the inside of the combustion tube 1 by the swirling wind that is blown into the combustion tube 1 from the fumarole chamber 15, so even if a small amount of fuel is supplied, ignition will not occur. This is done reliably, and a stable raw combustion state occurs immediately after ignition.

Therefore, the transition to vaporization combustion is carried out quickly and smoothly, and no flame fading occurs at this time.

As mentioned above, ignition, raw combustion, and vaporization combustion always maintain proper conditions, so it is rare to see the generation of unburned oil immediately after the burner starts, but even if unburned oil is generated in the combustion tube 1, However, it can be extracted from the drain pipe 25, and the liquefied fuel that may be generated in the gas chamber 3 when the temperature of the gas chamber 3 is low can be extracted from the drain pipe 26. There is no danger of fire or the like due to burning oil.

In short, the present invention provides a rotary carburetor 5 in a cylindrical combustion tube 1 with a bottom, and inserts a blower tube 9 communicating with a blower chamber 6 into the rotary carburetor 5 to connect the rotary carburetor 5 with the rotary carburetor 5. Mixed air passage 13 between
At the same time, a fume chamber 15 is formed on the open end side of the rotary vaporization tube 5 with a fuel oil scattering gap 12 and a rotation gap 17 in between, and a fume gap 18 is formed between the fume chamber 15 and the inner bottom surface of the combustion tube 1.
In the vaporizing burner, an annular air supply and ventilation body 19 having an inwardly curved surface 19 a at the upper end edge is provided on the inner circumferential surface of the combustion cylinder 1 from its bottom surface to slightly above the fuel scattering gap 12; A plurality of swirl guide bodies 20, 20... are disposed within the fumarole gap 18 to form forced air swirl generating paths 21, 21... that communicate from the fume chamber 15 into the combustion cylinder 1.
Since the spark plug 22 is provided in the space surrounded by the air supply and ventilation body 19 in the combustion tube 1, a swirling wind is generated within the air supply and ventilation body 19 in the combustion tube 1. This swirling wind allows the fuel sprayed from the rotating carburetor 5 into the combustion tube 1 to rapidly spread around the entire circumference of the combustion tube 1, ensuring reliable ignition even when a small amount of oil is supplied. At the same time,
A stable live combustion state can be achieved immediately after ignition, and the temperature of the rotary vaporizer cylinder 5 and combustion cylinder 1 can be quickly raised to the vaporizing atmosphere temperature, allowing a rapid transition to vaporization combustion and a stable vaporization combustion state to be maintained. It has the effect that it can.

[Brief explanation of drawings]

The drawings show one embodiment of the device of the present invention, and the first
The figure is a longitudinal sectional front view with a part cut away, and FIG. 2 is a plan view of the main part. 1... Combustion tube, 5... Rotating carburetor tube, 6
...Blower chamber, 9...Blower tube, 13...
...Mixture passageway, 15... Fumarole chamber, 17...
...Rotation gap, 18... Fumarole gap, 19.
...Air supply ventilation body, 19a... Its bent surface, 20... Turning guide body, 21... Forced air turning generating path, 22... ...Spark plug.

Claims (1)

[Scope of utility model registration request] A rotary vaporizing cylinder is provided in a bottomed cylindrical combustion cylinder, and a blowing cylinder communicating with a blowing chamber is inserted into the rotary vaporizing cylinder to form a hot air passage between the rotary vaporizing cylinder and the rotary vaporizing cylinder. A fumarole chamber is formed on the open end side of the rotary carburetor cylinder with a fuel scattering gap and a rotational gap separated from each other, and in a vaporizer burner in which a fume gap is formed between the fume chamber and the inner bottom surface of the combustion cylinder, the fume chamber is formed on the inner circumferential surface of the combustion cylinder. From the bottom surface to slightly above the fuel scattering gap, an annular air-feeding membrane holder having an inwardly curved surface on its upper edge is provided, and a plurality of rotating guide bodies are arranged in the fumarole gap to direct the flow from the fumarole chamber. A main combustion ignition promoting device in a vaporizing burner, characterized in that a forced air swirl generation path leading into the combustion cylinder is provided, and an ignition plug is provided in a space surrounded by the above-mentioned air-feeding membrane generator in the combustion cylinder. .