JP2007113887A - Burner and burning method of burner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a burner allowing an emulsion fuel to be used without anxiety by eliminating its disadvantage because the emulsion fuel is re-evaluated in these days due to skyrocketing fuel prices and the demand for detoxication of combustion exhaust gas or the like, but it is said that its combustion has not been stabilized yet, which is caused by a creaming phenomenon of the emulsion fuel due to the passage of time; and to provide its burning method. <P>SOLUTION: This burner has both a combustion nozzle connected to an oil tank and a combustion nozzle connected to an emulsion fuel tank. In this burning method, both the combustion nozzle connected to an oil tank, and the combustion nozzle connected to an emulsion fuel tank are used, the combustion nozzle for oil is ignited in ignition and the nozzle for the emulsion fuel thereafter or simultaneously ignited. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a burner and a method for burning the burner.

  Recently, emulsion fuels have been reconsidered due to demands such as soaring fuel and clean combustion exhaust gas. An emulsion fuel is a fuel obtained by mixing water and emulsifying fuel oil. Usually, since water is not mixed with fuel oil, it is emulsified using an emulsifier.

Combustion efficiency seems to decrease even if water that does not burn is mixed with fuel, but the fine particles of water dispersed in the oil are heated by the burning of the oil, instantly causing a slight explosion, and the surrounding oil Scatter and diffuse, thereby increasing the contact area between the oil and air, making it nearly as close to complete combustion and improving efficiency.
Moreover, since water is contained, the combustion temperature does not rise abnormally, and as a result, the generation of NOx and SOx is suppressed.

  Furthermore, in the case of an emulsion fuel, the amount of air is generally small, so that the efficiency is increased.

  For this reason, various emulsion fuels have been used, but their combustion is still not stable. This is said to be caused by the creaming phenomenon of the emulsion fuel over time.

  Therefore, a burner that does not have such drawbacks and can use emulsion fuel with confidence and a combustion method thereof are provided.

  In view of the above situation, the present inventor has completed the present burner and the combustion method thereof as a result of earnest research, and the feature of the burner is combustion connected to an oil tank. The burner combustion method includes both a combustion nozzle connected to an oil tank and a combustion nozzle connected to an emulsion fuel tank. The burner is used to ignite the oil combustion nozzle at the time of ignition, and thereafter or simultaneously with the emulsion fuel nozzle.

The burner of the present invention has two types of combustion nozzles, one for oil and the other for emulsion fuel. Each is not limited to one, but may be plural. The nozzle may be a simple hole or a pipe type.
Of course, each nozzle may be a normal one.

  The oil referred to here is biomass fuel such as kerosene, heavy oil, waste cooking oil, waste plastic reduction oil production waste oil, waste oil and the like, and any oil can be used as long as it is a fuel.

  The combustion nozzle connected to the oil tank means that each combustion nozzle is connected to each fuel tank, and no other fuel is mixed.

Further, the ignition device and the like may be as usual, and only one may be used. For example, the number of ignition devices may be one or two.
Further, timers, safety devices, etc. may be as usual.

  The burner of the present invention enables simultaneous combustion with a plurality of fuels in one combustion chamber, and does not simply use different fuels. In addition, the emulsion fuel nozzle is configured such that oil flows in and combustion with the oil is possible. Thus, if there is a problem with the emulsion fuel, it can be switched quickly and backup with oil becomes possible.

  Here, the emulsion fuel is obtained by mixing and emulsifying water and the above oil. The manufacturing method such as a mixing method is free.

Among the emulsion fuels, the following were particularly suitable.
First, a fuel (kerosene or the like) and an emulsifier are premixed. What is necessary is just to stir and mix this with a normal stirring apparatus or a hand. As the emulsifier, an emulsifier for forming W / O (water-in-oil type) is preferable. The mixing amount varies depending on the physical properties of the emulsifier, but is generally 0.2 to 5 parts by weight with respect to 100 parts by weight of fuel.
Preferred as the emulsifier are nonionic ones. Moreover, you may mix several things.

  Then add water to this. The amount of water added is about 10 to 100 parts by weight with respect to 100 parts by weight of fuel. After mixing, it is emulsified by stirring with a stirrer. Any stirring device may be used.

Next, the combustion method of the present burner will be described.
The method of the present invention is characterized by the oil nozzle, and the emulsion fuel nozzle is ignited by the oil flame. Therefore, the ignition is provided for the oil nozzle. Of course, it may be provided also as a nozzle for emulsion fuel as a reserve.

  The reason for this is that the emulsion fuel inevitably has poor ignition.

Further, once the emulsion fuel is ignited and becomes stable, the combustion of the oil may be stopped. This is because the use of the emulsion fuel is increased as much as possible because the emulsion fuel is basically used to save fuel and clean the combustion exhaust gas. Of course, it is not necessary to stop.
A person may check that the state is stable and stop the combustion nozzle, but a flame detector may be used to detect that the combustion of the emulsion fuel nozzle is stable. In addition, the kerosene fuel nozzle may be automatically stopped thereby.

The burner of the present invention and the combustion method of the burner have the following great advantages.
(1) Since the present invention burner can use emulsion fuel, not only can fuel be saved and combustion exhaust gas can be cleaned, but also oil can be used at any time, so there is no fear of emulsion fuel.
(2) Even if there is a problem such as emulsion quality or emulsion production, it can be burned with oil from one fuel system.
(3) The fuel can be freely selected according to the quality of the emulsion fuel, the price, the price of heavy oil, etc.
(4) With this method, ignition is stable and there is no waste.
(5) Emulsion fuel can be easily manufactured, thus reducing costs.

  Hereinafter, it demonstrates in detail along an Example.

FIG. 1 is a schematic side view showing an example of the burner 1 of the present invention. The burner body 2 is provided with a kerosene combustion nozzle 3 and an emulsion fuel combustion nozzle 4. An ignition igniter 5 is provided in the vicinity of the kerosene nozzle 3. In this example, the emulsion fuel nozzle 4 is not provided.
The kerosene nozzle 3 is connected to the kerosene pump 6, and the emulsion fuel combustion nozzle 4 is connected to the emulsion fuel pump 7. Of course, each pump is connected to a respective fuel tank 8,9.
In the event of an emulsion fuel trouble, kerosene flows into the emulsion fuel pipe 13 from the emulsion fuel cutoff switching valve 10 and the bypass valve 12 provided in the kerosene bypass pipe 11. The switching valve 10 and the bypass valve 12 may be manually operated or may be automatically operated by the panel 14.

  The thing of this example has each solenoid valve in a main body, and can operate it remotely. This remote operation is performed by the panel 14, where the pump can be operated, stopped, the strength can be adjusted, and the like.

FIG. 2 is a schematic cross-sectional view showing the production of the emulsion fuel used in the present invention. This figure shows that water, kerosene and emulsifier have already been mixed and stirred. This is a kind of homomixer. A cylindrical body 16 having an open top and bottom is provided in the container 15, and a stirring blade 17 is rotatably inserted therein. A disk 18 is provided above the cylindrical body 16.
When the stirring blade 17 rotates here, the liquid is sent upward from below. The liquid coming out from above the cylindrical body 16 collides with the disk 18 and the flow changes downward. In this way, the liquid is stirred and mixed.

It is a schematic side view which shows an example of this invention burner. It is a schematic sectional drawing which shows the place which manufactures the emulsion fuel used for this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Burner 2 Main body 3 Kerosene combustion nozzle 4 Emulsion fuel combustion nozzle 5 Igniter 6 Kerosene pump 7 Emulsion fuel pump 8 Kerosene tank 9 Emulsion fuel tank 10 Emulsion fuel cutoff switching valve 11 Kerosene bypass pipe 12 Bypass valve 13 Emulsion fuel Tube 14 Panel 15 Container 16 Tubular body 17 Stirring blade 18 Disc

Claims (5)

  A burner having both a combustion nozzle connected to an oil tank and a combustion nozzle connected to an emulsion fuel tank.   The burner according to claim 1, wherein the emulsion fuel is obtained by emulsifying an oil by adding an emulsifier and water.   Using a burner having both a combustion nozzle connected to an oil tank and a combustion nozzle connected to an emulsion fuel tank, the oil combustion nozzle is ignited at the time of ignition, and thereafter or simultaneously with the emulsion fuel nozzle. Burner burning method.   The burner combustion method according to claim 3, wherein the oil combustion nozzle burns even in a steady state. 4. The burner combustion method according to claim 3, wherein the oil combustion nozzle is not combusted in a steady state.

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