KR200366935Y1 - Burner for burning rejected oil - Google Patents

Abstract

The present invention relates to a complete combustion burner of waste oil, wherein the combustion gas ignited by using the gas circulates between the nozzles in the combustion chamber and generates a strong vortex, while the air injected from the fan into the combustion chamber decreases the flow rate. It is mixed with the combustion gas to preserve the high preheating temperature, and in particular, the fuel is mixed with the air in the longitudinal direction in the nozzle portion at a predetermined pressure, but the high pressure injection method for the complete combustion of the liquid fuel accumulated in the lower end of the nozzle portion Compressed air is sprayed through the air supply line to vaporize, so that environmental pollutants such as dioxins and ashes, which are incombustibles generated during combustion, can be completely combusted with continuous supply of combustion heat, thereby improving combustion efficiency and preventing pollution. It relates to a complete combustion burner of waste oil that is effective.

Description

Burner for burning rejected oil

The present invention relates to a complete combustion burner of waste oil, and more particularly, to a complete combustion burner of waste oil capable of drastically reducing air pollution by promoting complete combustion of ash, which is a non-flammable substance generated in an incomplete combustion environment.

In general, in order to increase the combustion efficiency of fuel, various researches such as a method of reburning fuel along with a study on a fuel injection method have been conducted.

In particular, the burner is 100% complete combustion in the atmosphere to obtain a complete combustion efficiency, the conventional burner type burner is a method of injecting the fuel itself to atomize and then burn it, the combustion of such fuel The gas vaporizes the fuel, and the conditions of the gasification process are weak, and the combustion conditions of the gas are naturally weakened, resulting in the incomplete combustion.

Therefore, in such a case, a sufficient amount of air can be injected to form a gasification for continuous combustion of fuel. In this case, fuel that is not combusted by the injection of air can be spontaneously ignited in order to achieve complete combustion by mixing with air. A temperature of about 800 ° C. is required, and a fuel supply is required with a sufficient supply of air continuously.

Therefore, as an invention for satisfying the above conditions, it is disclosed in Patent No. 0384065 "Combustion Method of Liquid Fuel", which is a high viscosity and low viscosity fuel in the longitudinal direction of the nozzle body at a predetermined pressure with compressed air And the mixer passes through a plurality of annular passages that are deflected in different directions along the longitudinal direction of the nozzle body, so that the impact force and the cross-sectional area of the mixer in the annular passages during the switching of the flow direction are different. A technique of burning liquid fuel by atomizing fuel by providing a change in pressure and providing sufficient auxiliary air.Initiate combustion by forming a temperature higher than a required temperature by initial preheating for the gasification of liquid fuel. Although the preservation of temperature is gradually lowered by the injection of Gasification and full combustion conditions of the sieve fuel could be satisfied.

However, high-viscosity industrial wastes contain a lot of harmful substances such as sulfur, lead and phosphorus, and then purified and then preheated to a certain temperature to be used as ordinary fuels to produce ash, which is a non-combustible ash, in an incomplete combustion environment. This ash suppresses the formation of gasification space, and has a property of solidifying and hardening when heat is applied. Therefore, the ash component should be burned without hardening. When the combustion of the waste oil starts after preheating, The preheating preservation temperature must be raised above the initial temperature (about 1250 ° C).

In other words, if the complete combustion is to be completely gasified to non-combustible materials regardless of the type of waste oil, the preheating preservation temperature that is lowered when the air is supplied from the fan by receiving gaseous fuel from the outside should be increased.

However, in the combustion method of the conventional fuel as described above, there is a problem in that it is difficult to burn the incombustible material which is hard to combust in the fuel.

Therefore, the present invention was devised to solve the above problems, and the combustion gas ignited by using the gas circulates between the nozzle portions in the combustion chamber and generates a strong vortex, while the air injected into the combustion chamber from the fan The preheating temperature is mixed with the combustion gas of which the flow rate is reduced, and in particular, the fuel is mixed and injected with air in a longitudinal direction in the nozzle unit at a predetermined pressure, and complete combustion of the liquid fuel that accumulates at the lower end of the nozzle unit is performed. In order to improve the combustion efficiency by supplying compressed air of high pressure injection method through the air supply line, it is possible to completely burn the environmental pollutants such as dioxin and ash, which is a non-combustible material generated during combustion, by the continuous supply of combustion heat. Combustion of waste oil with excellent effect in preventing oil and pollution We have to provide for their intended purpose.

1 is a side cross-sectional view showing an embodiment of a complete burner of waste oil according to the present invention,

Figure 2 is a side cross-sectional view showing another embodiment of a complete burner of the waste oil according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: nozzle unit 11: fuel supply line

12: air supply line 13: compressed air outlet

14 fuel outlet 15 screw

16 gas switching unit 16a gas passage hole

20: ignition unit 21: gas supply line

30: air supply pipe 40: mixer portion

41: orifice 50: housing

51: first annular port 52: second annular port

53: third annular port 53a, 53b: connection passage

54 support unit 55 reburn unit

56 gas flow switching unit 56a wing

56b: gas passage hole 60: combustion chamber

Hereinafter, the features of the present invention for achieving the above object are as follows.

Complete combustion burner of waste oil according to the present invention,

A nozzle unit 10 horizontally installed at a central portion in the housing 50 having a tubular shape, in which fuel is injected at a predetermined pressure together with air, and compressed air of a high pressure injection method is injected from the outside;

An ignition unit 20 formed integrally with one side of the nozzle unit 10 and igniting the gas supplied through the gas supply line 21 for initial ignition and preheating the nozzle unit 10 through this;

Injecting air through the fan into the combustion chamber 60 formed in the space between the outer circumferential surface of the nozzle unit 10 and the inner circumferential surface of the housing 50 to expand the gasified fuel in an incomplete state to smooth combustion in the combustion chamber 60. An air supply pipe (30) to plan;

Fuel including air discharged into the combustion chamber 60 through the fuel supply line 11 in the nozzle unit 10 and compressed air supplied through the air supply line 12 and the fuel outlet 14 and the compressed air outlet A separate mixer portion 40 to be mixed through 13;

The first to the third annular port 51 which can adjust the amount of air supplied from the fan and the combustion temperature of the combustion chamber 60, and wraps in the form of a housing 50 to prevent overheating and to prevent heat emission to the outside when the burner is stopped. And 52,53).

In particular, the nozzle unit 10 has a screw 15 having a spiral blade for converting the combustion gas of the combustion chamber 60 into the vortex flow on the outer circumferential surface of the rear end thereof and reverses the flow direction of the combustion gas. It is characterized in that it further comprises a gas switching unit 16 for circulating.

The gas switching unit 16 is characterized in that the gas passage hole 16a is formed along the inclined direction.

In addition, the rear end of the nozzle unit 10 is characterized in that it is formed in a conical shape to prevent the production of carbon to be laminated through the flow of the combustion gas.

In addition, the compressed air jet port 13 is characterized in that it is formed in one direction in the upper and lower positions corresponding to each so as to inject the compressed air in a direction opposite to each other.

In particular, the mixer part 40 is characterized in that the orifice 41 is provided so that the mixer in which the fuel and the compressed air is mixed is discharged to the combustion chamber 60 in a pressure drop state.

The third annular port 53 further includes a band-shaped connecting passage 53a and 53b having a predetermined interval so that the combustion gas in the combustion chamber 60 is led to the second annular port 52 and discharged into the boiler. Characterized in that.

The connecting passages 53a and 53b may be formed of a gap of 5 to 50 mm.

In addition, it is formed between the second annular port 52 and the third annular port 53 has the same shape and function as the screw 15, and reburns the ash burnt in the combustion chamber to achieve complete combustion. It characterized in that it further comprises a reburn unit (55).

The gas flow switching unit 56 is formed outside the reburn unit 55 and has a streamlined wing 56a or a gas passage hole 56b to vertically change the direction of the flame discharged into the boiler. Characterized in that.

In addition, the housing 50 is characterized in that it can be separated into a horizontal type and a vertical type according to the installation position.

Hereinafter, the configuration of the present invention with reference to the accompanying drawings in detail.

1 is a side cross-sectional view showing an embodiment of a complete combustion burner of waste oil according to the present invention, Figure 2 is a side cross-sectional view showing another embodiment of a complete combustion burner of waste oil according to the present invention.

1 and 2 are burners having the same function, according to the installation position, FIG. 1 is a horizontal burner, and FIG. 2 is a vertical burner.

The horizontal burner and the vertical burner have the same shape as the tubular combustion chamber 60 constituting the housing 50, but have an inflow structure through which air, fuel, and gas are introduced, and in which the air and fuel are introduced and mixed. There is a slight difference in the shape of the nozzle unit 10.

However, the functions are the same, and the parts having the same function in the present invention use the same reference numerals.

First, prior to describing the vertical and horizontal burners shown in FIGS. 1 and 2, reference numeral A denotes the flow of air, F denotes the flow of fuel, and G denotes the flow of gas.

The nozzle unit 10 having a constant length through which the fuel F is injected at a predetermined pressure together with the air A is horizontally installed in the center of the housing 50 having a tubular shape, and the nozzle unit 10 At one side, the gas supplied through the gas supply line 21 for the initial ignition is ignited, and at the same time, the ignition unit 20 configured to preheat the nozzle unit 10 is integrally configured.

At this time, the combustion chamber 60 is formed in a space between the outer circumferential surface of the nozzle unit 10 and the inner circumferential surface of the housing 50, and injects air through a fan into the combustion chamber 60 to be in an incomplete gaseous state. The air supply pipe 30 is formed to expand the gas to facilitate smooth combustion in the combustion chamber 60.

Here, the nozzle unit 10 is connected to the air supply means (not shown) of the high pressure injection method, it is possible to receive compressed air having a predetermined pressure from the outside, in this case the air supply in the nozzle unit 10 In line 12, it is important to continuously supply compressed air at a constant pressure to ensure sufficient air.

As such, the appropriate air pressure and air amount suppress the formation of non-combustible materials such as ash generated in an incomplete combustion environment, thereby inducing complete combustion.

On the other hand, in the nozzle unit 10 in which the air supply line 12 is formed, fuel including air discharged into the combustion chamber 60 through the fuel supply line 11 in the nozzle unit 10 and the air supply line 12 It is equipped with a separate mixer unit 40 for mixing the compressed air supplied through the).

As such, each of the connection parts is provided with a compressed air jet port 13 and a fuel jet port 14 which are connected to each other so that the compressed air and fuel can be mixed, and in the mixer part 40 where the compressed air and fuel are mixed. The mixer mixed with the orifice 41 is discharged to the combustion chamber 60 in a pressure drop state.

At this time, as shown in Figure 1, in a preferred embodiment of the present invention, the compressed air jet port 13 is injected in the compressed air supplied from the air supply line 12 in one direction in each of the corresponding up and down positions It is formed to be able to spray the compressed air in the opposite direction.

This is to prevent the liquid fuel that collects under the mixer part 40 from being accumulated under the mixer part 40 to enable gasification through the rotational pressure of the compressed air.

In addition, the diameter of the fuel jet port 14 varies depending on the type of fuel. When using a high-quality liquid fuel, its diameter should be relatively small, and fuel having a large amount of foreign substances such as waste oil should be large.

At this time, the diameter of the electron bar is 0.5 to 1.5 pie, which is to prevent the flame width from being incomplete because the moving speed is increased before the fuel is gasified when the ejection port is large when using a high-quality liquid fuel.

On the other hand, the latter diameter is 3.5 to 10 pi.

On the other hand, the separate mixer portion 40 is provided by the compressed air is injected in a state that the liquid fuel is moved to the mixer portion 40, the fuel in the mixer portion 40 is a gas state at the pressure of the compressed air This is to allow a state of spontaneous ignition by changing the state.

As shown in FIG. 1, in a preferred embodiment of the present invention, the outer peripheral surface of the rear end of the nozzle unit 10 has a screw 15 having a spiral blade and a gas switching unit 16 having an annular shape. Protruding in the lateral direction, the screw 15 allows the combustion gas of the combustion chamber 60 to be converted into a strong vortex flow by hitting the inclined pieces, the gas switching unit 16 of the combustion gas It is a means for changing the direction of the combustion gas to switch the flow direction so as to be circulated in the reverse direction and to be led to the connecting passages 53a and 53b described later.

In addition, as shown in FIG. 2, in another preferred embodiment of the present invention, the gas switching part 16 is formed with a ring-shaped gas passage hole 16a along an inclined direction, the gas passage hole ( Combustion gas passing through 16a) vortexes to prevent the formation of carbon that occurs in an incomplete combustion environment.

This facilitates the flow of the combustion gas in the combustion chamber 60, and facilitates gasification of the mixer discharged from the mixer section 40, while supplying air between the gas particles of the mixer to achieve complete combustion. It allows you to.

In addition, the rear end of the nozzle unit 10 is formed in a conical shape, which prevents the production of carbon laminated on the rear end surface through the flow of the combustion gas.

On the other hand, the housing 50 is formed in the form of a triple tube consisting of the second and third annular ports (52, 53) including the first annular port (51) having the same central axis and different diameters, respectively A space is formed between the cylindrical curved surfaces, which is a form in which the amount of air supplied from the fan and the combustion temperature of the combustion chamber 60 can be adjusted.

That is, the air is mixed with the heat of combustion delivered from the high temperature combustion gas in the combustion chamber 60 to allow the temperature to rise, thereby cooling the first and second annular ports 51 and 52.

The triple tube annular ports 51, 52, 53 have a strip-shaped connecting passage having a predetermined distance between the combustion chamber 60 and the second annular port 53. 53a and 53b are formed so that combustion gas in the combustion chamber 60 is guided to the second annular port 52 and discharged into the boiler.

In this case, the connection passages 53a and 53b formed at the front and rear ends of the third annular port 53 are gaps for smoothly dispersing the flow of air supplied from the fan due to thermal expansion when the combustion heat is reversed. The larger the gap, the easier the reverse conversion of the heat of combustion.

If the connecting passages 53a and 53b are deleted, the reverse configuration of the heat of combustion is quite difficult due to the wind pressure supplied from the fan, and thus the technical configuration (connecting passage) is necessary.

At this time, the gap of the connecting passage (53a, 53b) is 5 ~ 50mm is appropriate, can be switched depending on the application.

On the other hand, it can be seen that the function of the first annular port 51 has a function of preventing overheating of the second annular port 52 and preventing heat from being exposed to the outside when the burner is stopped.

And, in the preferred embodiment of the present invention, when using a gaseous fuel and a high-quality liquid fuel is a high temperature, that is, a temperature of 1250 ℃ or more occurs when the component damage is concerned, the connection passage is removed, and installed in a double pipe It is preferable.

On the other hand, the second and second annular port 52 and the third annular port having the same shape and function as the screw 15 and reburning the ash burned in the combustion chamber to achieve complete combustion It is formed between 53.

In addition, it has a blade (see FIG. 1) or a gas passage hole (see FIG. 2) that is streamlined so as to vertically change the direction of the flame discharged into the boiler to the outside of the reburn unit 55, and has high-temperature combustion heat. In order to withstand well, a gas flow conversion part 56 made of a special heat resistant steel material is formed.

Meanwhile, reference numeral 54 denotes a support part which is connected to the inner circumferential surface of the third annular port 53 and the outer circumferential surface of the nozzle part 10 to firmly fix the nozzle part 10 to the inside of the housing 50. .

In the following, the above-mentioned components will be described in more detail with the operating principle, gas, air, and fuel flow conditions.

In a preferred embodiment of the present invention, first operate the fan for a predetermined time (about 15 seconds) to discharge the remaining gas in the combustion chamber 60 to the outside, and operate the ignition means not shown, the gas is supplied from the outside to ignite And supplying gas to the ignition unit 20 undergoing the preheating process to ignite it.

At this time, the ignition unit 20 preheats the nozzle unit 10 through the combustion gas, the overall flow of the combustion gas is shown in the form, circulating between the gas switching unit 16, as shown in the figure, Some are diverted to the second annular port 52 via connecting passages 53a and 53b.

Here, the preheating temperature is for about 1 minute and 30 seconds, and is a step necessary for incineration of the residue in the nozzle unit 10.

At this time, the air and the compressed air are continuously supplied through the fan and the air supply line 12.

The liquid fuel is introduced into the preheated nozzle unit 10 so that the compressed air and the liquid fuel are mixed with each other in the mixer unit 40 so that the liquid fuel can be gasified. The discharge may be spontaneously ignited in the combustion chamber 60.

At this time, the carbonized material that is difficult to gasify, that is, ash has a high preheating temperature in the ignition section 20 to which gas is supplied, and is completely burned by the supply of continuous combustion heat whose temperature is raised as a whole.

As described above, according to the complete combustion burner of the waste oil according to the present invention, the liquid fuel and compressed air is injected into the mixer under a predetermined pressure, the environmental pollutants such as dioxin and combustion occurs through continuous supply of combustion heat It is possible to completely burn the ash and the like, there is an excellent effect in improving the combustion efficiency and pollution prevention.

Claims (11)

A nozzle unit 10 horizontally installed at a central portion in the housing 50 having a tubular shape, in which fuel is injected at a predetermined pressure together with air, and compressed air of a high pressure injection method is injected from the outside; An ignition unit 20 formed integrally with one side of the nozzle unit 10 and igniting the gas supplied through the gas supply line 21 for initial ignition and preheating the nozzle unit 10 through this; Injecting air through the fan into the combustion chamber 60 formed in the space between the outer circumferential surface of the nozzle unit 10 and the inner circumferential surface of the housing 50 to expand the gasified fuel in an incomplete state to smooth combustion in the combustion chamber 60. An air supply pipe (30) to plan; Fuel including air discharged into the combustion chamber 60 through the fuel supply line 11 in the nozzle unit 10 and compressed air supplied through the air supply line 12 and the fuel outlet 14 and the compressed air outlet A separate mixer portion 40 to be mixed through 13; The first to the third annular port 51 which can adjust the amount of air supplied from the fan and the combustion temperature of the combustion chamber 60, and wraps in the form of a housing 50 to prevent overheating and to prevent heat emission to the outside when the burner is stopped. 52,53) comprising the complete combustion burner of the waste oil, characterized in that. The method according to claim 1, The nozzle unit 10 is circulated in a reverse direction by switching the flow direction of the screw 15 and the combustion gas having a spiral blade on the outer peripheral surface of the rear end to convert the combustion gas of the combustion chamber 60 into the vortex flow Complete combustion burner of the waste oil, characterized in that it further comprises a gas conversion unit (16). The method according to claim 2, The gas conversion unit 16 is burned completely burner, characterized in that the gas passage hole (16a) is formed along the inclined direction. The method according to claim 1, The rear end of the nozzle unit 10 is a complete combustion burner of the waste oil, characterized in that formed in a conical shape to prevent the production of carbon laminated through the flow of the combustion gas. The method according to claim 1, The compressed air blower (13) is a complete combustion burner of the waste oil, characterized in that formed in one direction in the upper and lower positions corresponding to each so as to inject the compressed air in a direction opposite to each other. The method according to claim 1, The mixer part 40 is the burner of the complete combustion of waste oil, characterized in that the orifice (41) is provided so that the mixture of fuel and compressed air is discharged to the combustion chamber 60 in a pressure drop state. The method according to claim 1, The third annular port 53 further includes a band-shaped connecting passage 53a and 53b having a predetermined interval so that the combustion gas in the combustion chamber 60 is led to the second annular port 52 and discharged into the boiler. Complete combustion burner of waste oil, characterized in that The method according to claim 7, The connecting passage (53a, 53b) is a complete combustion burner of the waste oil, characterized in that consisting of a gap of 5 ~ 50mm. The method according to claim 1, A reburn unit formed between the second annular port 52 and the third annular port 53, having the same shape and function as the screw 15, and reburning the ash burned in the combustion chamber to achieve complete combustion. Complete burner of the waste oil, characterized in that it further comprises (55). The method according to claim 1, The gas flow switching unit 56 is formed outside the reburn unit 55 and has a streamlined wing 56a or a gas passage hole 56b to vertically change the direction of the flame discharged into the boiler. Complete combustion burner of waste oil, characterized in that The method according to claim 1, The housing (50) is a complete combustion burner of the waste oil, characterized in that it can be separated into a horizontal and vertical type according to the installation position.