JPS62213829A - Emulsifier for purifying emulsion fuel - Google Patents

Abstract

PURPOSE:To prevent mayonnaise sludge or the like from generating by mixing and finely-pulverizing liquid fuel and water to make these emulsion fuel by means of both the following housing cylindrical face and the serrated edges of the gears wherein a plurality of gears having the diameters specified in the specified relation are housed. CONSTITUTION:The fed fuel and water are successively sent under pressure to the second and third gears 14, 15 from the first gear 13, mixed and finely- pulverized and discharged through an emulsion discharge hole 33 of a force feed part 25 of the third gear 15. Since respective gears have diameters gradually made small for the force feed direction of fuel and water, the fed fuel and water are extremely excellently mixed and finely-pulverized. Furthermore one part of the mixed fuel and water dose not flow back and mayonnaise sludge is not generated as it is called because both the proceeding direction of fuel and water and the rotating direction of the gears are same in the respective clearance parts 26, 27, 28.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an emulsifier that mixes fuel oil such as heavy oil with water in so-called emulsion combustion, in which water is mixed with fuel oil such as heavy oil and then burned.

[Conventional technology]

BACKGROUND ART Conventionally, a combustion method called emulsion combustion has been known, in which fuel oil and water are atomized and injected into a combustion furnace for combustion.

Emulsion combustion is a method in which 3% to 10% water is mixed into liquid fuel (heavy oil A, B, C, re-fueled oil, etc.), emulsified, and then burned. The fuel contains fine water particles, so-called W/O (Water in oil). When the oil on the outside is unburned or incompletely burned, water particles rapidly vaporize due to heat conduction, and this vaporized water vapor diffuses and shatters the oil on the outside, causing the so-called "micro-explosion" phenomenon. The idea is to induce this, further atomize the surrounding oil, and improve the mixing with the combustion air, thereby making the combustion state more complete and promoting combustion.

In other words, in emulsion combustion, the mixed water expands approximately 1,700 times due to heat in the burner furnace, and fuel oil such as heavy oil is gasified, eliminating uneven temperature within the furnace and making it uniform throughout the furnace. It can achieve complete combustion and has high combustion efficiency. This high combustion efficiency reduces the proportion of CO2 and Now in the exhaust gas, and it has gained an extremely high reputation as an energy-saving, low-pollution combustion method today.

FIG. 3 shows a schematic configuration for achieving such emulsion combustion.

In FIG. 3, 1 is an oil service tank for storing fuel oil such as heavy oil, 2 is a water tank for storing water to be mixed with the fuel oil, 3 is a tank for storing water to be mixed with the fuel oil, 4 is an emulsifier for atomization, and 5 is an oil filter.

A pump, 6 a valve, and 10 a burner.

In order to achieve such emulsion combustion, conventionally, the oil is passed from the fuel oil tank 1 through a 4 m filter, a valve 6, etc.
Emulsion combustion was made possible by directly supplying fuel oil to the burner 10 and using a different fuel supply route to configure a fuel supply route via an emulsifier 3 that mixes and atomizes fuel oil and water. That is, the fuel oil from the oil service tank 1 is supplied to the emulsifier 3 through the oil filter, and in the emulsifier 3, it is mixed with water from the water tank 2 and atomized, so-called emulsified fuel is pumped. 5. It is supplied to burner 1G via valve 6 to achieve emulsion combustion.

[Problem that the invention seeks to solve]

The main structure of such emulsion combustion equipment is an emulsifier that mixes water into fuel oil at a predetermined ratio and atomizes it. Conventional emulsifiers have a structure as shown in Figure 4. It has a basic structure consisting of three gears 153154155.

That is, gears 153155 with a large diameter are arranged on both sides, and the motor 140 is connected to the central gear 154 to apply rotational force, liquid fuel is supplied from the fuel supply pipe 141, and water is supplied to the water pipe. When supplied from the emulsion pipe 143, the emulsion fuel is mixed and atomized by the first gear 153, further mixed and atomized by the second and third gears, and is discharged from the emulsion pipe 143 and supplied to the burner to perform emulsion combustion. To be flexible. .

To explain in more detail the state in which fuel oil and water are mixed and atomized inside the emulsifier, the three gears 15315 disposed inside the emulsifier 3 as described above.
4155 is housed within the housing 151. In order to facilitate understanding of the structure of such an emulsifier, a sectional view of a conventional emulsifier is shown in FIG.

In such a conventional emulsifier, for the first gear 153,
For the pressure feeding section 183 and the second gear 154, for the pressure feeding section 184 and the third gear 155, for the pressure feeding section 16.
5 as the basic structure, the first pumping section 163 is provided with a fuel supply hole 171 and a water supply hole 172 to which the fuel supply pipe 141 is connected, and the third pumping section 1
85 is provided with an emulsion discharge hole 173.

As is clear from FIG. 4, a motor 140 is connected to the second gear 154, and the rotation of the motor 140 causes the first and third gears 153 meshed with it.
, 155 have a rotating structure, and these first
, the second and third gears are rotated within the housing, so that the fuel oil and water are mixed and atomized by these gears and the wall of the housing. That is, the housing includes first, second, and third
The first, second and third pumping parts 1B111189188 corresponding to the gear 153154155 each have a clearance part 18818 that is eccentric on the side opposite to the pipe hole 171172173 side. 188.

In FIG. 5, when the second gear 154 rotates in the direction of the arrow, the first and third gears 153155 rotate in the opposite direction as shown in the figure, and the first
The tips of the teeth of the first gear 153 are in contact with the first fuel supply hole 171 and the water supply hole 172 in the housing 151, and the first gear 15
The liquid fuel and water supplied between the tip of tooth 3 and the wall of the housing are cut into small pieces, and the fuel and water are mixed.

Atomize. Then, this mixed and atomized fuel oil and water are sent to the second gear 154 and the second pressure feeding section [14,
Similarly, the fuel oil and water are mixed and atomized by the tooth tips of the second gear 154 and the wall of the housing.

The supplied fuel oil and water are transferred from the first to the second and third gears 153154155 and from the first to the second and third pumping parts H.
1e IH1BB As it is fed, it is mixed and atomized into finer particles, and is finally supplied to the burner 10 through the emulsion discharge hole 173 and the emulsion pipe 143.

In this case, in the conventional emulsifier, part of the mixed liquid fuel and water flows backward in the clearance part of the pumping part where the gear is housed, so the negative pressure generated during this time causes the mixed fuel to Air bubbles were generated between the fuel and the water, which became so-called mayonnaise sludge, which increased the viscosity of the emulsified fuel and caused clogging of plumbing pipes, uneven combustion, and poor combustion efficiency.

[Means for solving problems]

In such a conventional emulsifier, the present invention arranges the diameters of a plurality of gears constituting the emulsifier to gradually become smaller in the direction of pumping fuel and water, thereby reducing fuel and water particles. Finely mixed and atomized, this eliminates clogging of plumbing pipes, etc., and prevents part of the mixed liquid fuel and water from flowing backwards in the pumping direction within the housing that houses each gear. Therefore, the present invention aims to provide an emulsifier which can prevent the generation of mayonnaise sludge and the like and has good emulsion efficiency.

[Action of the invention]

In the present invention, liquid fuel and water are mixed and atomized (emulsified) very naturally, and the mixed water is This is an emulsifier that prevents part of the fuel from flowing backwards in the direction of pumping, and therefore does not generate mayonnaise sludge, which prevents clogging of pipes, etc., and improves combustion efficiency. That is.

[Embodiments of the invention]

An emulsifier according to the present invention will be explained based on the drawings.

FIG. 1 is a schematic diagram showing an embodiment of an emulsifier according to the present invention.

FIG. 2 is a sectional view of the emulsifier shown in FIG. 1 to facilitate understanding of its operation.

In FIGS. 1 and 2, 11 is a motor.

Reference numeral 12 denotes a housing, and the housing 12 is provided with a fuel supply vibro, a water supply pipe 7, and an emulsion discharge pipe 8, similar to a conventional emulsifier.

As shown in FIGS. 1 and 2, in this embodiment, the motor 11 is connected to a first gear 13 having a large diameter, and fuel and water are supplied from the gear 13 of the ring 1. supply.

The supplied fuel and water are transferred from the first gear 13 to the second gear f5.
The emulsion is sequentially pumped to the third gear 14 and 15, mixed and atomized, and discharged from the emulsion discharge hole 33 provided in the pumping section 25 of the third gear 15.

In the emulsifier according to the present invention, each pressure feeding section 23
．． Clearance portions 26, 27, and 28 provided eccentrically at 24, 25 are provided on the rotational direction side of each gear with respect to the advancing direction of fuel and water. That is, if the emulsifier according to this embodiment is explained with reference to the drawings, the clearance portion 26 in the first gear 13 is provided on the rotation direction side with respect to the rotation direction of the first gear (as shown in FIG. 2). According to the cross-sectional view, the clearance on the circumferential surface is slightly larger and eccentric.

Similarly, the second gear 14 in the middle is a gear having an intermediate diameter between the gears 1 and 1, and the clearance portion 27 of this part
is similarly provided on the rotation direction side of the gear (according to the sectional view of FIG. 2, on the upper side), and the clearance of its circumferential surface is slightly larger and eccentric.

The third gear 15 is the gear with the smallest diameter,
The clearance part 2B in this part is also provided on the rotation direction side of the gear (the lower side according to the cross-sectional view in FIG. 2), and the clearance on the circumferential surface is slightly larger and eccentric. ing.

The water supplied from the water supply hole 32 is a gear! Fuel supply hole 3 is cut into pieces by the tip of tooth 3 and goes around a quarter of the way! At this point, the fuel is mixed and atomized with similarly finely chopped fuel, and then pumped to the next second gear 14. Then, water and oil are further mixed and atomized in the second gear 14, and then pumped to the third gear 15, where the same process is carried out to create a mixed and atomized emulsion. Fuel is discharged from the emulsion discharge hole 33.

Here, since each gear is configured as a gear having a diameter that gradually becomes smaller in the direction of pumping fuel and water,
The supplied fuel and wood are extremely well mixed and atomized. Furthermore, each clearance part 2B, 27.28
Since the direction in which the fuel and water travel is the same as the direction in which the gear rotates, a part of the mixed fuel and water does not flow backwards, and therefore, no air bubbles are mixed in the middle, creating what is called mayonnaise sludge. does not occur.

〔Effect of the invention〕

According to the present invention, air bubbles are not mixed during the so-called emulsification process in which fuel and water are mixed and atomized, and mayonnaise sludge is not generated, so there is no risk of clogging of plumbing pipes.

Furthermore, since unevenness in combustion is eliminated, combustion efficiency increases.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an embodiment of an emulsifier according to the present invention,
FIG. 2 is a sectional view of the emulsifier, FIG. 3 is a diagram showing the schematic configuration of conventional emulsion combustion, FIG. 4 is a diagram showing the basic structure of the conventional emulsifier, and FIG. 5 is a diagram showing the basic structure of the conventional emulsifier. 5 is a sectional view of the conventional emulsifier shown in FIG. 4. FIG. 1...Oil service tank, 2...Water tank, 3...
・Emulsifier, 4...Oil filter, 5...Pump, 6...
・Valve, 10... Burner, ti, 140...
Motor, 12.151...Housing, 153,
154, 155...Gear, 141...Fuel supply pipe. 7...Water pipe, 143...Emulsion pipe,
31.171...Fuel supply hole, 32,172...Water supply hole, 33.173...Emulsion discharge hole, 23
．． 24.25, 183, 184, 185...pumping section, 2B, 27.28, IH, 1B? , 188...
Clearance Department Patent Applicant Takeshi Nakayama Patent Attorney (9004) Hitoshi Otaki Figure 3 Figure 4 Figure 5

Claims (4)

[Claims] (1) In an emulsifier that stores a gear and this gear and mixes and atomizes liquid fuel and water between the housing cylindrical surface and the teeth of the gear to refine emulsion fuel, the diameter of each gear is determined by the diameter of each gear. and the cylindrical surface which accommodates the gears and which pumps the fuel and water is arranged so as to become smaller and smaller in the direction of pumping the fuel and water, and the cylindrical surface that houses the gears and pumps the fuel and water rotates with respect to the direction in which the fuel and water travels. An emulsion fuel refining emulsifier characterized by having a clearance slightly larger and eccentric in the direction. (2) The emulsion fuel refining emulsifier according to claim 1, wherein the liquid fuel supply hole provided in the emulsifier is provided parallel to the advancing direction of the fuel and water. (3) The emulsion discharge hole provided in the emulsifier is
The emulsion fuel refining emulsifier according to claim 1, wherein the emulsion fuel refining emulsifier is installed parallel to the traveling direction of the fuel and water. (4) The emulsion fuel purification emulsifier according to claim 1, wherein the water supply hole provided in the emulsifier is provided perpendicularly to the advancing direction of the fuel and water.