JPS5827310B2 - Fuel oil reforming method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for reforming fuel oil that utilizes cavitation to improve the combustion efficiency of fuel oil.

Conventionally, methods to increase the combustion efficiency of fuel oil include mixing combustion aids, using magnetic force, and mixing water into fuel oil, but none of these methods can improve the fuel efficiency. It was only an increase of 1 to 3%.

In particular, the conventional method of mixing water increases the combustion efficiency of fuel oil, but there is a problem in that the water is heated during vaporization, resulting in a substantial loss of energy.

By the way, conventionally known methods of generating so-called cavitation in a liquid include using ultrasonic waves and rotating blade plates, but according to the former method, the size of the ultrasonic diaphragm Due to the limitations on the amount of energy available, it is not possible to generate a large amount of cavitation in the liquid, and the complicated structure makes it difficult to manufacture the device easily and inexpensively. The problem was that it was not accurate.

Further, according to the latter method, there is a natural limit to the size of the vane due to the resistance in the liquid, and there is also a problem that a large amount of cavitation cannot be generated in the liquid.

The purpose of this invention is to solve the above problems, to continuously generate cavitation in fuel oil, and to
It is an object of the present invention to provide a method and apparatus capable of producing a large amount of reformed fuel oil with excellent combustion efficiency.

This invention will be explained below based on embodiments shown in the drawings.

In FIGS. 1 and 2, a casing 2 of a fuel oil reforming apparatus 1 has a cylindrical shape with a bottom, and is installed horizontally on a base 11. As shown in FIGS.

The casing 2 houses a rotor 4 having a large number of radial hard linear protrusions 5 made of steel and generally arranged in a spiral shape.

A rotating shaft 3 of the rotor 4 is located at the center of the casing 2, and both ends of the rotating shaft 3 are supported by bearings 10 provided on both side walls of the casing 2.

Here, there is a gap of 1 to 3 degrees between the casing 2 and the protrusion 5.

A fuel oil inlet pipe 6 is connected to one side wall of the casing 2, and a reformed fuel oil discharge pipe 7 is connected to the other end of the peripheral wall of the casing 2.
is connected, and an air vent pipe 8 is connected to the side wall on the same side near the rotating shaft 3.

As the fuel oil, heavy oil, kerosene, animal and vegetable oil, waste oil, etc. are used.

A motor 9 is installed on a base 11 outside the casing 2, and its drive shaft is connected to the rotating shaft 3.

In the above, fuel oil such as heavy oil is introduced into the casing 2 from the fuel oil introduction pipe 6, and the rotor 4 with the iron wire-like protrusions 5 is
When rotated at a high speed of 1600 to 3600 times per minute,
The moving speed of the iron wire-shaped protrusion 5 in oil is 20 to 5 per second.
As a result, an excessive amount of cavitation occurs in the oil near the rear side in the moving direction of the iron wire-like protrusion 5, and the constituent substances in the fuel oil are destroyed and dispersed due to the high pressure and high temperature generated. The temperature of the ultrafine particle solution is increased by 20 to 40°C.

As a result, the viscosity of the fuel oil decreases, and the fuel oil is easily atomized in the combustion chamber of a boiler, for example, and is reformed into oil that mixes smoothly with air, has good ignitability, and has excellent combustibility.

Such reformed fuel oil is sequentially transferred to the discharge side of the casing 2 by the rotation of the iron wire-like protrusions 5 arranged in a spiral shape as a whole, and is discharged from the casing 2 through the discharge pipe 7 to the boiler or engine (not shown). etc. will be supplied.

FIG. 3 shows another embodiment of this invention.
The difference from the above embodiment is that the fuel oil introduction pipe 6 passes through one end of the peripheral wall of the casing 2, and its tip is bent near the rotation axis 3 of the rotor 4. .

Therefore, the dispersibility of the fuel oil introduced through this pipe 6 is further increased.

The other points of the embodiment shown in FIG. 3 are exactly the same as those of the above embodiment, and the same parts in the drawings are given the same reference numerals.

For example, regarding a boiler that uses C heavy oil,
When heavy oil C was agitated at high speed using the apparatus of the present invention shown in Figures 1 and 2 and then supplied to the combustion chamber of a boiler, the combustibility was good and the boiler efficiency increased by 6.1%. The amount could be saved by 7.1%.

Since the combustibility of heavy oil is increased in this way, it is completely combusted, generating almost no carbon monoxide, and the amount of nitrogen oxides generated is also reduced, making it possible to prevent the occurrence of pollution.

In addition, since the combustibility of fuel oil increases, it is possible to use, for example, heavy oil B in a boiler for heavy oil A, and heavy oil C in a boiler for heavy oil B, without using a preheating heater, making it more economical. Very expensive.

As described above, the method for reforming fuel oil according to the present invention involves introducing fuel oil into a casing containing a rotor to which a large number of hard linear protrusions are fixed, and By rotating the fuel oil at high speed, cavitation is generated in the fuel oil and the constituent substances of the fuel oil are decomposed or reduced in molecular weight, so it is possible to produce a large amount of reformed fuel oil with excellent combustion efficiency. This increases the combustibility of fuel oil, resulting in complete combustion, generating almost no carbon monoxide, and reducing the amount of nitrogen oxides generated, which has the effect of preventing pollution. play.

Further, in the device according to the present invention, a rotor 4 having a large number of hard linear protrusions 5 on the peripheral wall is arranged in the longitudinal direction of the casing 2 in a closed cylindrical casing 2 with a bottom. A fuel oil inlet pipe 6 is connected to the same end, a reformed fuel oil discharge pipe 7 is connected to the other end thereof, and a rotational drive means is provided on one side outside the casing 2 for rotating the rotor 4 with the hard linear protrusions 5 at high speed. 9 is arranged, it is possible to reliably reform fuel oil such as heavy oil, it is possible to continuously generate a large amount of reformed fuel oil with excellent combustion efficiency, and it has a simple structure. Therefore, it can be manufactured easily and inexpensively, and consumes less power, resulting in a very economical effect.

[Brief explanation of drawings]

The drawings show embodiments of the present invention; FIG. 1 is a schematic vertical sectional view of the first embodiment, FIG. 2 is a sectional view taken along the line XX in FIG. It is a schematic longitudinal cross-sectional view. 1...Fuel oil reformer, 2...Casing, 3...Rotating shaft, 4...Rotor,
5... Hard linear protrusion, 6... Fuel oil inlet pipe, 7... Reformed fuel oil discharge pipe, 9...
... Motor (rotation 1 drive means), 10 ... Bearing, 11 ... Base.

Claims (1)

[Scope of Claims] 1. Fuel oil is introduced into a casing containing a rotor to which a large number of hard linear protrusions are fixed, and the rotor with hard linear protrusions is rotated at high speed. A fuel oil reforming method characterized by generating cavitation in the oil to decompose or reduce the molecular weight of the constituent substances of the fuel oil. 2. The method according to claim 1, wherein heavy oil, kerosene, animal and vegetable oil, or waste oil is used as the fuel oil. 3 A rotor 4 having a large number of hard linear protrusions 5 on the peripheral wall is arranged in the closed cylindrical casing 2 in the longitudinal direction of the casing 2, and a fuel oil introduction pipe 6 is connected to one end of the casing 2. is connected to the same end, a reformed fuel oil discharge pipe 7 is connected to the other end, and the hard linear protrusion 5 is connected to one side outside the casing 2.
A fuel oil reforming device in which a rotation 7 driving means 9 for rotating a rotor 4 at high speed is arranged. 4. The fuel oil according to claim 3, wherein the hard linear projections 5 are made of steel, are fixed to the peripheral wall of the rotor 4 in an upright manner, and are arranged in a spiral shape as a whole. reformer.