JPS5928164Y2 - Vaporizing oil burning appliance - Google Patents

Description

[Detailed explanation of the invention] This invention relates to the improvement of vaporizing oil combustion appliances.
In this type of vaporizing oil combustion appliance, in order to burn combustion air and fuel in a well-balanced manner, the amount of air and fuel are supplied in direct proportion, and the vaporized gas is simultaneously ejected into the vaporizing chamber and mixed. It was to create a blue fire and completely burn it.

When this combustion is performed at a large power, the blue flame is completely combusted without any problems, but when it is performed at a low power, the amount of air and fuel is reduced and the mist of fuel reaches the inner wall of the vaporizing chamber. The residence time in the space for the vaporized 1 becomes long, and therefore the vaporization is not promoted sufficiently, resulting in disadvantages such as streaks of red flame or misfire.

This invention focuses on this point, and aims to achieve complete combustion of green flame and eliminate misfires, etc., not only during large-power combustion, but also during small-fire combustion, by simply improving the nozzle body.

Next, referring to FIG. 1 of an embodiment of this invention shown in the drawings, reference numeral 1 denotes a concave vaporization chamber, and a large number of flame ports 2 are formed in two rows on the upper side. Approximately 200-24
A heating heater 3 for heating to 0 degrees is removably provided and attached to the lower part of the combustion chamber 4.

Reference numeral 5 denotes an air blowing passage with an air outlet 6 connected to the lower side of the vaporization chamber 1, and a combustion fan 8 integrated with a motor 7 is installed in the other side of the air passage 5, and a branch pipe 9 is connected from the middle. It is branched and communicated with the oil pan 10.

Reference numeral 11 denotes a nozzle body that supplies the fuel oil to the vaporization chamber 1 while turning the fuel into particles or mist, and is positioned so as to pass through the air outlet 6 side of the air passage 5 so as to look into the vaporization chamber 1. is connected to one side of the oil feed pipe 12 that communicates with the oil pan 10, and its tip 11' has a sloped shape cut from top to bottom.
Furthermore, the lower part of the tip 11' is curved downward and bent.

Reference numeral 13 indicates a branch pipe 9 at a position where the branch pipe 9 of the air passage 5 is branched.
The damper has a headless concave shape so that it is approximately at the center, and has adjustment holes 13' and 1f symmetrically bored on opposite surfaces of the air inlet side a and the air outlet side to adjust the air volume and air pressure. Attach it so that it can rotate freely.

Further, the damper 13 is provided with adjusting holes 13' and 1 on opposite concave surfaces.
The reason for drilling f is to prevent the balance between the air volume and the wind pressure from being directly proportional if there is only one adjustment hole, which would result in an imbalance between the air volume and the fuel volume.

The damper 13 is integrally equipped with a heating power adjustment handle 14 and a power switch (not shown), and the amount of fuel is increased or decreased according to the pressure applied to the oil pan 10 by adjusting the air volume and wind pressure, and the amount of fuel is supplied to the vaporization chamber 1. The firepower is adjusted according to the amount of combustion air, and electricity starts at the same time.

Reference numeral 15 designates a solenoid valve provided in the middle of the oil pipe 12, which is energized by a detection means and opens when the heater 3 together with the motor 7 reach a set temperature.

Reference numeral 16 denotes a cartridge-type oil supply tank that can be attached to and detached from the oil pan 10. When attached to the oil pan 10, it is sealed via a packing material 17, and the oil level of the oil pan 100 during refueling is approximately the same as that of the nozzle body 11. When the branch pipe 9 is separated from the oil receiving tray 10, the pressure from the branch pipe 9 is released and no fuel is supplied.

Reference numeral 18 denotes combustion detection means, which detects when the fire is extinguished or incomplete combustion occurs, and stops all functions by using, for example, an oxygen concentration sensor.

19 is the igniter.

As mentioned above, this invention has been stolen.Next, the operation of one embodiment of this invention will be explained.When the heating power adjustment handle 14 is rotated, the heating heater 3 is first energized.
The heater 3 heats the vaporization chamber 1.

After several minutes have elapsed, the heater 3 raises the temperature of the vaporization chamber 1 to the set temperature, so the thermoswitch (not shown) closes, causing the igniter 19 to start spark discharge, and the solenoid valve 15 to open. Further, the motor 7 of the combustion fan 8 rotates to supply combustion air to the air passage 5.

At this time, the combustion air flows through the adjustment hole 13' of the damper 13.

1f is supplied to the vaporization chamber 1, and further branched from the branch pipe 9 and also supplied to the oil receiving tray 10.

A portion of the combustion air supplied to the oil pan 10 pushes down the oil level and sprays the fuel into the vaporization chamber 1 in the form of a mist through the oil feed pipe 12 and the nozzle body 11.

As a result, the fuel oil comes into contact with the inner wall surface of the vaporization chamber 1 whose temperature has been raised to the set temperature, instantly turns into vaporized gas, rises, and is ignited by the igniter 19 to start blue flame combustion.

In order to adjust the firepower in this combustion state, when the firepower adjuster 14 is turned to the high power combustion side, the adjustment holes 13' and 1go' of the damper 13 are simultaneously opened to the maximum. Damper 1 is adjusted by two adjustment holes 13' and 1f.
The air volume and wind pressure in the tank 3 are balanced and a large amount of combustion air is supplied into the vaporization chamber 1. On the other hand, the combustion air diverted to the branch pipe 9 becomes high pressure and strongly pushes down the oil level of the oil pan 100.
As a result, a large amount of fuel is transferred to the oil pipe 12 and the nozzle body 1.
1 into the vaporization chamber 1, it becomes a large amount of air-fuel mixture and vaporized gas, and is combusted with great power.

Next, when burning at a low power, adjust the fire power by adjusting the adjustment hole 13' of the damper 13 according to the reverse rotation of the handle 14.

1f has a small opening, and the air volume and wind pressure in the damper 13 are balanced by these two adjustment holes 13' and 1f, and a small amount of combustion air is supplied into the vaporization chamber 1, while being diverted to the branch pipe 9. The combustion air becomes low pressure and strongly presses down the oil level of the oil pan 100, whereby a small amount of fuel is supplied into the vaporization chamber 1 from the oil feed pipe 12 and the nozzle body 11 and becomes a small amount of air-fuel mixture and vaporized gas. and burn it with a small flame.

At this time, since the amount of combustion air and fuel is small, the residence time in the space until it reaches the inner wall surface of the vaporization chamber 1 and vaporizes is long.
Since the nozzle body 11 has a slope and is bent downward, the combustion air supplied to the vaporization chamber 1 has a negative pressure downwardly due to the bending of the tip 11' of the nozzle body 11.

As a result, the atomized fuel is diffused to the negative pressure area, and
It immediately contacts the bottom inner wall surface of the vaporization chamber 1, becomes vaporized gas, reaches the inner wall surface within the vaporization chamber 1, and vaporizes, which shortens the residence time in the space.

Another reason is that the atomized fuel ejected from the tip of the nozzle body 11 has less resistance due to its negative pressure point, so the ejection force becomes substantially faster, and the atomized fuel is quickly reaches the inner wall surface of vaporization chamber 1,
The spatial residence time is shortened, vaporization and gasification are accelerated and sufficient vaporization is achieved.

This also sufficiently promotes combustible vaporization,
In addition, it is completely vaporized and becomes a complete combustion state of blue flame even with low heat.

As described above, this invention connects the air blowing passage 5 to the vaporizing chamber 1 equipped with the heating heater 3, and the nozzle body 11 is looked into the vaporizing chamber 1 from inside the air blowing passage 5 to blow out fuel.
Since the tip 11' of the nozzle body 11 is characterized by being sloped and bent downward, negative pressure is exerted below the tip of the nozzle body during low-power combustion, thereby causing atomized fuel. reaches the inner wall surface of the vaporization chamber and is vaporized1
The residence time in the space is shortened, vaporization is promoted sufficiently, red flame streaks and misfires are eliminated, and blue flame is completely removed not only during large-fire combustion but also during small-fire combustion. It can be burned.

This also prevents the release of peculiar bad odors into the room, and requires only a very simple modification of the nostal body, which is of practical significance.

Furthermore, this means that there is no need to apply strong pressure from the branch tube to the oil pan when the firepower is low, and therefore there is no need to position the nostal body at a position that is significantly lower than the oil level in the oil pan, allowing simultaneous combustion. The fan or motor used for this purpose can also be made more compact by being smaller, and the noise can also be reduced.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of this invention, and FIG. 2 is an enlarged sectional view of the main parts. DESCRIPTION OF SYMBOLS 1... Vaporization chamber, 3... Heater 5... Ventilation path, 11... Nostle body, 11'... Tip.

Claims (1)

[Scope of utility model registration request] In a device in which an air blowing passage 5 is connected to a vaporizing chamber 1 equipped with a heating heater 3 and a nozzle body 11 is peered into the vaporizing chamber 1 from inside the air blowing passage 5 to spout fuel, the tip 11 of the nozzle body 11 is A vaporizing oil burning appliance characterized by having a slope and a downward bend.