KR900003476B1 - Ultra sonic combustion apparatus - Google Patents

Abstract

The ultrasonic combustion apparatus atomises liquid fuel and water and supplies mixed fuel to preheated vaporiser. The apparatus realises perfect combustion and makes an effect of humidifier in the combustion process. The apparatus includes a combuster unit which has burner (4) on the vaporiser (1) attached with cooling shell (6), a ultrasonic atomiser between blower (26) and the combuster unit, supply pipe (26') connected by branched pipe (18) having multi inlets (14') (30') (32') with air adjusting screws (17) (17')(17").

Description

Ultrasonic Combustor with Liquid Fuel Water

1 is a block diagram of an ultrasonic combustion apparatus according to the present invention.

Figure 2a is a plan sectional view of the vaporizer cylinder in the present invention, b, c is a longitudinal sectional view of the vaporizer in the present invention.

Figure 3 is a detailed view of the separation tube of the present invention.

* Explanation of symbols for main parts of the drawings

1: vaporizer 3: spark plug

6: cooling cylinder 8, 10: injection nozzle

9: Thermistor 14: Secondary air supply connector

18: branch pipe 21: receiving ultrasonic atomization unit

22: ultrasonic hatching generator for liquid fuel 26: blower for combustion

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid fuel water addition combustion device, and more particularly, to a liquid fuel water addition ultrasonic combustion device configured to have a complete combustion when supplied as a fuel of a heater and to exhibit a humidification effect in a combustion process.

When water is added to liquid fuel, physical and chemical effects can be obtained. The effect is to explode the remains and promote fuel atomization. This phenomenon is called micro explosion or secondary atomization. At this time, combustibility is improved because the atomized fuel expands the contact area with air. This reduces the amount of carbon monoxide (Co) and soot particles and improves energy efficiency.

와 질소산화물(NOx) 와 미연 탄소물질(Soot) 의 생성억제, 즉 H₂O+C(연료) → H₂+Co-28.1Kcal을 나타낸다.And the chemical principle of carbon monoxide generation of hydrocarbon fuels

And the inhibition of the formation of nitrogen oxides (NOx) and unburned carbon materials (Soot), that is, H ₂ O + C (fuel) → H ₂ + Co-28.1Kcal).

In particular, this reaction is an endothermic reaction to locally increase the temperature at the beginning of combustion to suppress the generation of nitrogen oxides (NO _X ) and at the same time to react with the unburned carbon material to suppress its occurrence.

And water during combustion

^{_{H 2 O + H + → H}} 2 + OH - ( endothermic)

^{_{H 2 O + O ++ → OH}} + OH - ( endothermic)

_{^{H 2 + O ++ → H +}} + OH - ( absorbing heat)

When converted from carbon dioxide to carbon dioxide (Co ₂ )

_{^{Co + OH - → Co 2 +}} H + ( exothermic) b

Co + O ₂ → Co ₂ + O ⁺⁺ (exothermic) c

Is converted into a process.

At this time, the conversion of (b) is most often the conversion of (c) is very slow and negligible.

Hydroxide (OH) groups generated by the conversion process (a) above promote the reaction of (b), thereby suppressing the amount of carbon monoxide. In addition, the hydroxyl group produced by the reaction (a) above suppresses the generation factor of the soot particles, while inhibiting polymerization and the production of carbon nuclei, thereby reducing the amount of soot produced.

And since the salt produced in the process of converting carbon monoxide (Co) to carbon dioxide (Co ₂ ) is greater than the heat required in the process of decomposing oxygen (H ₂ O), when the flame temperature is burned only by ordinary fuel alone It has the effect of higher than the flame temperature of and the atomized water and fuel are mixed with the primary air and the nozzle (secondary air + water droplet) and the nozzle (secondary air + oil) which will be supplied to the carburetor are collided and sprayed. Since the effect of mixing with water and air is increased, the combustion can be stabilized and complete combustion can be performed, thereby saving energy.

The most suitable configuration for obtaining the above effects will be described with reference to FIG. 1 as follows.

Install the oil refinery plate 5 of the burner 4 which burns on the upper part of the vaporization cylinder 1 in which the preheating heater 2 wound up to raise the temperature, and detects the preheating temperature at the lower end and Thermistors 9 to be held are provided and nozzles 8 and 10 for the ultrasonic atomization units 21 and 22 are provided on both sides.

And around the vaporization cylinder (1) is installed a cooling cylinder (6) consisting of a spark plug (3), and an inlet (7) for fixing the secondary air supply connector (14) on the side.

In addition, the ultrasonic atomization generators 21 and 22 are for water and liquid fuel, respectively, and have a structure in which the cartridge type supply tanks 11 and 12 can be detached from each other. On the bottom of the collection chamber, start protective cylinders 19 and 24 for installing the ultrasonic vibrators 20 and 23 are formed, and ultrasonic vibrators 20 and 23 are installed therein, so that water and liquid fuel are in the column protective cylinder. The water and the liquid fuel of the ultrasonic vibrators 20 and 23 enter the holes drilled in the lower ends of the (19) and (24) phases.

But also formed to the bottom ultrasonic mist generating unit home Susilo cartridge type water tank 11 and the liquid fuel supply taenggeu dolchulgu (21 _a) which is the outlet valve of the tank abuts pressed when the 12 is seated, easy to be mounted One rubber packing (16) is installed above the collection chamber, and when the tank is seated on the rubber packing (16), it has a structure that forms an air passage through which the outside air can flow to the collection chamber in the rubber packing and seating unit. .

The primary air supply pipe 30 is connected to the primary air supply pipes 30 and 32 and the drop and drop supply pipes 13 and 15 to the side and the upper side of the ultrasonic atomization generator 21 and 22 by a hose band. 32 is connected to the left and right inlets 30 'and 32' of the branch pipe 18 in which the air supply adjusting screws 17 and 17 "are installed, and the water and waste supply pipes 13 and 15 are The connection is corrected by the hose band to the above-described injection nozzles (8) and (10).

A secondary air supply connector 14 connected to the cooling inlet 6 of the cooling tube 6 and the inlet 7 which is secondary air is connected to the merchant inlet 14 'of the branch pipe l8, and a blower 26 is connected to the servant inlet. ) Is connected to the blower pipe 26 ', but the air supply adjusting screw (17') is installed in the upper inlet.

In addition, the cartridge type water supply tank 11 and the oil supply tank l2 are always provided with a compression spring so that the outflow hole of the tank is blocked by the projections 21 _a and 22 _a of the atomization generating sections 21 and 22. pressing the hayeoseo will install the outlet hole will open the outlet valve _{(11 a) (12 a)} . When the operation switch (not shown) is turned on by applying power to the present invention having the above configuration, when the temperature of the vaporization cylinder 1 is preheated to about 230 to 240 ° C. by the electric preheater 2, the preheating detection is performed. The thermistor 9 detects and maintains a constant temperature.

After completion of the preheating, the combustion blower 26 is activated (commonly referred to as prepurge). After performing the above preperge process for about 10 to 20 seconds, the ultrasonic atomization generator 21 for water, the ultrasonic atomization generator 22 for liquid fuel (Oil), and an ordinary purifying transformer (not shown) are applied. It operates by igniting by spark plug discharge of air and proceeds with combustion.

In the ignition process, the external air sucked by the combustion blower 26 is filtered by the filter 27 and passed through a blower tube, and a part of the branched tube 18 is formed through the primary supply pipe 32. 22 and another part is supplied to the receiving ultrasonic atomization generator 21 through the primary supply pipe 30.

Here, the droplet + primary air or oil droplet + primary air atomized by the vibrators 20 and 23 is preheated in the injection nozzles 8 and 10 through the supply pipe l3 and 15. Sprayed into 1).

While supplying the primary air to each atomization section 21 and 22 by the combustion blower 26, some of the air is cooled through the secondary air supply connector 14 and the inlet 7. Is supplied. The supplied air rises while cooling the vaporization cylinder 1, promotes a combustion reaction at the burner 4 portion, and exits the exhaust gas.

In the above process, the dropping water + primary air and the oil drop + primary air injected into the vaporization cylinder 1 are the installation angles of the installation angles Q and Q2 of the spray nozzles 8 and 10, i.e. 0 It is inclined at about -15 ℃ and sprayed, and water droplets + primary air is supplied to the remains + primary air at a height of h ₁ = h ₂ or h ₁ = h ₂ × 1.1 = 1.25. do. In the above headquarters process, the drop + primary air is positioned lower than the drop + primary air in order to reduce the drop amount of the drop by supplementing the drop of the drop which is difficult to vaporize.

The mixture of oil droplets + droplets + primary air (combustion air) thus formed is burned in the burner 4 through the oil refinery plate 5 while evaporating sequentially, causing the above-described physical effect (microexplosion).

It represents the chemical effects of water described above and is accompanied by some physical effects initially.

In such a combustion device, the branch pipe 18 is formed in the shape of a tree branch as shown in FIG. 3 and is connected to each of the connectors 14, 30 and 32 temporarily fixed so as to be compatible with the intended use of the combustion device. Matching primary and secondary air supply adjusting screws 17, 17 ', 17 "are threaded to adjust the air supply to suit the condition of each combustion device or its combustion characteristics.

During the use of the combustion device, the overall air volume control according to the amount of heat generated during use is controlled by changing the rotation speed of the motor itself using the rotation speed sensor 33.

The effect of the present invention by the combustion process is that the oil droplets generated in the ultrasonic atomizer using the vibrator and the water droplets are both ultra fine particles of 10 mm or less, and the amount of water added is 0.1 to 0.4 because the volume ratio of water / liquid fuel Nitrogen oxide (NO _X ), unburned carbon material (Soot), carbon monoxide, soot particles, etc. of the exhaust gas layer is reduced by the chemical effect to create a comfortable environment.

In addition, combustion pause efficiency is increased and energy is saved by the physical and chemical effects of water addition. The vaporizer also enhances the mixing effect by colliding, turning and spraying water droplets + primary air (combustion air) and oil field + primary air (combustion air).

Therefore, the effect of adding water can be further maximized, and the effect of stabilizing combustion can be avoided. In addition, since water is added to the combustion process, the humidification effect due to moisture is increased, so that an effect that does not require a separate humidifying device can be expected.

As described above, the present invention is configured to mix the liquid fuel and water with ultrasonic waves so that they are mixed in the preheated vaporization cylinder, so that the heat generation effect is increased, the combustion is completed, and at the same time, the device has a simple structure that generates a humidification effect. Not only is it convenient to handle, but it is also easy to manufacture and has the advantage of saving energy.

Claims (2)

A burner 4 is installed above the vaporization cylinder 1 and a combustor body having a cooling cylinder 6 installed around the vaporization cylinder 1 and a blower 26 connected to the combustor body by cooling and secondary air supply pipes. In the installation of the ultrasonic atomization unit for supplying atomized particles into the vaporization cylinder 1 between the blower 26 and the combustion main body, several inlets (inlet) are provided at the supply pipe 26 'of the combustion blower 26. 14 ') 30' and 32 'connecting branch pipes 18 are formed, and air inlet screws 17, 17' and 17 "are installed at the inlet end thereof, and the inlet 14 of the upper part is installed. ') Is connected to the air supply pipe (14) for supplying cooling and secondary air to the cooling tube (6), and the ultrasonic atomization generator 21 for water and liquid fuel to the inlet (30', 32 ') on the left and right sides (22) connects primary supply pipes (30) and (32) for supplying primary air, and ultrasonic atomization generators (21) and (22) for water and liquid fuel to fields and fuel tanks. (11) (12) is a cartridge type detachment and water droplets and oil supply pipes (13, 15) connected to these ultrasonic atomization generators (21) and 22, the installation angle of the vaporization cylinder (1) Q _l ) (Q ₂ ) and the liquid fuel water addition ultrasonic combustion apparatus, characterized in that it is configured to connect to the nozzle (8) (10) installed in the height (h _l ) (h ₂ ). The method of claim 1, wherein the installation angles Q ₁ and Q ₂ of the nozzles 8 and 19 are 20 ° to 60 ° and the installation inclination angle Q ₃ and Q ₄ are formed within 0 to 15 °. their height (h ₁₎ (h ₂₎ is h ₁ = in h ₂ h ₁ = h ₂ = 1.1 to 1.25 to establish a difference in height level can be added to the liquid fuel combustion apparatus according to claim.

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