KR100249225B1 - Device for activating flame of oil burner - Google Patents

Abstract

The present invention relates to a petroleum combustor, and more particularly, petroleum which can increase combustion efficiency and minimize harmful gas generation by forcibly supplying secondary activated air to a flame ejected from a burner by an air supply means. It relates to a flame activator of the combustor.

The present invention for this purpose is to install an air supply means so that a part of the air generated from the blower can flow toward the flame ejected to the outside through the burner.

Description

Device for activating flame of oil burner

TECHNICAL FIELD The present invention relates to the field of petroleum combustors, and more particularly, to a flame activator of a petroleum combustor.

In general, a petroleum combustor is one of heating devices that heat by using heat obtained by vaporizing and burning petroleum or kerosene as fuel, and a fuel supply unit for supplying flammable fuel and a fuel supplied from the fuel supply device. And a blower section for supplying external air to the combustion device to atomize the combustible fuel and supplying air necessary for combustion.

This will be described in more detail with reference to FIGS. 1 and 2 as follows.

First, the fuel supply unit is provided in the lower part of the combustor main body 1 as shown in Figure 1 and the fuel tank (2) for storing the fuel; And a fuel pump 3 for pumping fuel from the fuel tank and supplying the fuel to the combustion device.

The burner part, which is a core part of the combustor, has a cylindrical vaporizer 4 with a closed bottom surface; A preheat heater (5) embedded in the circumferential surface of the carburetor to preheat the carburetor (4) to vaporize the liquefied combustible fuel supplied from the fuel tank (2) at the beginning of ignition; A nozzle (6) formed integrally with one side of the vaporizer to introduce external combustion air by an air supply device (to be described later) to atomize the combustible fuel into small droplets and to supply air for combustion; A needle (7) installed on the inner central axis of the nozzle to inject and supply flammable fuel into the vaporizer; A port cap (or burner cap) 8 mounted on the upper opening of the vaporizer 4 and flowing into the vaporizer to eject the atomized gas to the top; A burner head 10 installed at an outer circumferential surface of the port cap and having a myriad of salt holes 9 formed therein; An ignition plug (11) installed at one side of the burner head to initially ignite the vaporized gas ejected through the salt hole (9); In order to always maintain a temperature range suitable for fuel to evaporate on the bottom surface of the vaporizer 4, the preheat heater 5 is turned on when the temperature is lower than the optimum temperature, and when the temperature is higher than the proper temperature, the preheat heater 5 is turned off. &Quot; a temperature sensor 12 for controlling the operation of the preheater so as to be able to; A port ring 13 installed at an outer circumferential surface of the burner head 10 to transfer heat generated during combustion to the vaporizer 4; A burner cover 14 which closes the upper surface of the carburetor so that the heat source is not lost due to the carburetor 4 being exposed to the outside of the port ring; A port out 15 installed to surround the side portion and the lower portion of the vaporizer to prevent the vaporization heat from being conducted to the outside; It is provided on the burner head 10, and consists of a radiator 16 or the like in which combustion heat is secondaryly burned along the outer circumferential surface.

A blowing fan installed at a lower part of the burner unit and configured to blow external air and blow air to the burner unit; And a drive motor 18 for providing power to the blower fan.

Therefore, when power is applied to the combustor main body 1, a burner unit is operated to generate a preheating heater 5 embedded in the vaporizer 4, thereby preheating the vaporizer 4 to the extent that the liquid combustible fuel can be vaporized. .

Then, when the preheating of the vaporizer 4 is completed, the combustion air is supplied to the inside of the vaporizer 4 through the nozzle 6 by the combustion air supply device and at the same time the fuel pump 3 is driven by driving the fuel supply device. The liquid combustible fuel therein is injected into the vaporizer 4 through the needle 7 and is atomized into small droplets by the combustion air supplied through the nozzle holder 6a.

The atomized droplets thus spread and evaporate thinly while colliding with the inner wall surface of the vaporizer 4.

The evaporated gaseous gas is discharged upward along the flow path 8a of the port cap 8, at which time the vaporized gas is rectified by a pressure equalizing plate 19 installed at the lower end of the port cap 8, and the port cap ( As it passes through 8), the turbulent airflow at high temperature and high pressure is smoothed and converted into a constant laminar flow, and decelerated first.

Thus, the first reduced gaseous gas collides with the upper surface of the conical burner head 10 to reduce the flow rate to the second, and at the same time, the vaporized gas is uniformly distributed radially by the conical shape. It is ejected to outside through 9).

In such a state, when the user presses an operation button (not shown) to generate sparks in the ignition plug 11 installed at one side of the burner head 10, the ignition is generated in the vaporized gas which is ejected, and thus the combustion of the vaporized gas is performed. Heating is performed by the heat of combustion.

On the other hand, the burner head 10 is discharged by mixing the flame and the primary activation air together, the flame is vaporized while the fuel ejected from the needle (7) through the carburetor (4) after the spark plug 11 Is ignited and ignited by the spark, and the air passing through the nozzle holder 6a → nozzle 6 → carburetor 4 → port cap 8 by the rotational force of the blowing fan 17 is burner head 10. Along with the flames that are emitted to, it helps to activate the flames.

In addition, the flame ejected from the burner head 10 is activated by the atmosphere around the flame, that is, the secondary activation air, thereby heating by radiant heat in the radiator 16.

However, the conventional petroleum combustor as described above does not have a device for injecting a separate secondary activation air for activating the flame ejected to the radiator 16, and has a structure of secondary combustion by natural convection. Not only the combustion efficiency is lowered, but also in proportion to the amount of harmful gases harmful to the human body there was a problem that increases.

In addition, as described above, when the supply amount of the secondary activation air is insufficient, the length of the postflammation ejected to the radiator 16 is long and wide, which blocks the lower end of the radiator 16 to prevent inflow of the secondary activation air (atmosphere). Since it blocks, the combustion rate decreases, and the radiant heat of the radiator 16 increases, thereby heating the burner head 10 adjacent thereto, and when the vaporized gas in the burner head 10 rises above the ignition point, the flame burns. The flashback phenomenon that does not eject to the outside of (10) and burns immediately inside occurs.

Accordingly, there was a problem that causes severe noise accompanied by the explosion phenomenon.

In addition, the upper portion of the vaporizer 4 is heated by the heat load of the radiator 16 and the flame's own temperature ejected from the flame hole 9 of the burner head 10. When this phenomenon is aggravated, the upper portion of the vaporizer 4 is heated. Will also melt.

The present invention has been made to solve the conventional problems as described above, the object is to increase the combustion rate by forcibly supplying the secondary activation air to the flame ejected to the radiator.

The present invention for achieving the above object is a burner portion having a port out and the first flange is formed by horizontally bending the upper end outward, and the burner cover having a second flange formed on the upper portion of the first flange and coupled; ; A petroleum combustor comprising a blowing fan for supplying air to the burner unit and a blowing unit including a fan case surrounding an upper portion of the blowing fan; It is to provide a flame activation device of the petroleum combustor, characterized in that the air supply means to be installed so that a portion of the air generated from the blower flows toward the flame ejected to the outside through the burner.

1 is a partial cross-sectional side view showing an example of a general petroleum combustor

2 is an enlarged view of a portion A of FIG.

Figure 3 is a sectional view of the main part of the oil combustor to which the air supply device of the present invention is applied for supplying secondary activated air to a burner;

Figure 4a is a plan view of the burner cover with pores

4B is a plan view of the portout with pores formed therein

Explanation of symbols for main parts of the drawings

14: burner cover 15: pot out

17a: fan case 20: air flow path

21: air supply pipe 140: second flange

141: second hole 150: first flange

151: first hole

Hereinafter, the structure for supplying the secondary activation air will be described in detail with reference to FIGS. 3 to 4A and 4B.

First, a description of parts overlapping with the conventional configuration will be omitted as much as possible, and a description will be given focusing on the new configuration.

In the burner portion (not shown) of the petroleum combustor, the upper end of the portout 15 surrounding the side and the bottom of the vaporizer 4 is formed with a first flange 150 which is horizontally bent outward by a predetermined length. have.

In addition, a portion of the end of the second flange 140, which is horizontally bent outward from the top of the burner cover 14 is coupled to the first flange 150 of the port out 15, the burner cover except for the coupled portion Between the second flange of and the first flange of the portout is isolated.

On the other hand, an air flow path 20 is formed around the first flange 150 of the port out 15 and the upper side portion, and surrounds the upper portion of the air flow path 20 and the blower fan 17. The fan case 17a is connected by the air supply pipe 21.

In addition, a large number of relatively large first holes 151 are formed in the first flange 150 formed at the upper end of the portout 15 along the flange surface, and cover the upper portion of the first flange 150. In the second flange 140 of the burner cover 14, a number of fine second holes 141 having a smaller diameter than the first holes 151 are formed along the second flange.

The operation of the air supply means configured as described above is as follows.

When the petroleum combustor is operated, external air flows into the fan case 17a by the rotational force of the blower fan 17, and at the same time, most of the air is blown back to the vaporizer 4 through the nozzle holder 6a.

In this process, some air is introduced into the air passage 20 connected to the upper portion of the air supply pipe through the air supply pipe 21 connected to one side of the fan case 17a, and the air introduced into the air flow path is ported out 15. Ascending through the first hole 151 formed in the first flange 150 of the and finally discharged to the outside through the second hole 141 formed in the second flange 140 of the burner cover (14).

The air discharged as described above is secondary activated air, which is oriented upward by the rotational force of the blower fan 17 to activate the afterflamming ejected from the burner head 10.

Since the size of the first hole 151 formed in the first flange 150 of the portout 15 has a relatively large diameter, a larger amount of air passes therethrough, and the second flange of the burner cover 14 Since the second hole 141 formed in the 140 has a small diameter, the air passing through the first hole 151 of the first flange 150 is rectified to discharge a uniform amount of air toward the posterior flame. do.

When the inlet of the secondary air is activated as described above, the length of the flame is shortened and the width thereof is also reduced, so that the inlet of the third activated air introduced into the side of the radiator 16 is also smoothly performed.

As described above, by forcibly supplying the secondary activated air to the flame ejected from the burner by the air supply means of the present invention, there is an effect of increasing the combustion efficiency and reducing the amount of harmful gas.

In addition, the radiator also has the effect of maximizing the emotional heating effect by uniformly distributed throughout the red glowing phenomenon.

Claims (3)

A burner unit having a port out having a first flange formed by horizontally bending an upper end outward, and a burner cover having a second flange formed on the upper portion of the first flange; A petroleum combustor comprising a blowing fan for supplying air to the burner unit and a blowing unit including a fan case surrounding an upper portion of the blowing fan; And an air supply means for allowing a part of the air generated from the blower to flow toward the flame ejected to the outside through the burner. The method of claim 1, Air supply means and the air flow path formed along the upper outer peripheral surface of the port out, An air supply pipe for connecting the air flow path and the fan case to supply air in the fan case to the air flow path; A first hole formed in the first flange of the port out to allow the air of the air passage to blow upward; And a second hole formed in the second flange of the burner cover so that air passing through the first hole is blown toward the flame. The method of claim 2, The flame activation device of the petroleum combustor, characterized in that the diameter of the second hole is smaller than that of the first hole.

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