JPS6349236A - Emulsion device - Google Patents

Abstract

PURPOSE:To eliminate the requisite of a pump of exclusive use in a emulsion device consisting of rotors received in cylindrical parts by constituting the outer peripheral surface of teeth of a rotor and the inner peripheral surface of a cylindrical part so as to have a liquid-tight sliding part and a part having a clearance. CONSTITUTION:When a rotor 2 is rotated, rotors 1 and 3 meshed with the rotor 2 are also rotated. And, by the action of a gear pump part P, fuel oil and water are sucked in through an inflow port 11 and introduced to an emulsion generating area E having a clearance C1, where convection and eddy current are generated between the liquid contained between teeth 1a and the liquid in the clearance C1, and the oil and the water are agitated and mixed together. The mixture is prevented from flowing upward because of the meshing of the rotors 1, 2, and introduced to a cylindrical part 6, where the mixture is more homogeneously mixed because the movement of teeth 2a and the stream in the clearance C2 are opposite to each other. Then, the mixture is introduced to the cylindrical part 7 and mixed with together in an emulsion generating part E, and discharged through an outlet port 12 by a gear pump part P.

Description

Detailed Description of the Invention (a) Industrial Application Denominator The present invention is a method of mixing liquids that do not dissolve in each other, such as oil and water, and mixing one liquid (for example, oil) with the other liquid (for example, water). An emulsion device that finely disperses
In particular, the present invention relates to an emulsion device suitable for application to a device for finely dispersing water in fuel oil in boilers, diesel engines, etc.

(B) Prior Art Generally, it is known that in a boiler, heavy oil and water are mixed in advance to form an emulsion in order to save energy and reduce pollution.

Furthermore, in recent years, it has been proposed for diesel engines to mix water with light oil to form an emulsified fuel in order to save on fuel consumption and reduce nitrogen oxides and dust.

Conventionally, as this type of emulsion device, as shown in Japanese Unexamined Patent Publication No. 153129/1982, a gear pump type is used, which is composed of a rotor with teeth formed on the outer circumferential surface and a housing having a cylindrical part for housing the rotor. In this device, the axis of the rotor is arranged eccentrically with respect to the axis of the cylindrical part, and the incompatible liquids are rotated and transferred while entangled between the tooth grooves, and one liquid ( Devices have been devised in which water (eg water) is subdivided.

←→ Invention tries to solve the problem! ! ! ffg point However,
In the above emulsion device, even near the liquid inlet where the outer circumferential surface of the rotor teeth and the inner circumferential surface of the cylindrical portion are close to each other, there is a predetermined distance between the outer circumferential surface of the rotor teeth and the inner circumferential surface of the cylindrical portion, and therefore the gear pump It is unable to exert its pumping action.

For this reason, it is necessary to separately install a dedicated gear pump, which makes the device complicated, and it is extremely difficult to control the gear pump's discharge amount and the amount of emulsion produced by the emulsion device, depending on the required amount of emulsion liquid. Therefore, it is difficult to always produce the required amount of emulsion liquid consisting of stable fine particles.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an emulsion device with a gear pump function, thereby solving the above-mentioned problems.

B) Means for Solving the Problem The present invention has been made in view of the above-mentioned circumstances. For example, as shown in FIGS. 1 and 2, teeth 1a, 2
An emulsion control device 10 comprising a housing 9 having a rotor l, 2゜3 having a rotor a, 3a and a cylindrical part 5, 6.7 for housing the rotor. At a portion facing the inlet 11 and/or the outlet 12, the outer peripheral surface of the rotor 1°3 is in sliding contact with the inner peripheral surface of the cylindrical portion to form a gear pump P, and at other portions, the outer peripheral surface of the rotor 1. It is characterized in that a predetermined interval C exists between the outer circumferential surface and the inner circumferential surface of the cylindrical part so that stirring and mixing can be performed.

Based on the above configuration, the emulsion device 10 sucks an inphase solution (for example, oil and water) from the inlet 11 by the pumping action of the gear pump part P due to the rotation of the rotors 1 and 2. The inphasic solution is stirred and mixed in a portion having a gap C... to form an emulsion, and the emulsion solution is pumped (or without being pumped) through the outlet 12 to other equipment such as a boiler. Sent.

(f) Example Hereinafter, embodiments embodying the present invention will be described.

As shown in FIG. 1, the emulsion device 10 has a housing 9 in which a pace plate 15 is integrally fixed with bolts 16. Cylindrical (hole) parts 5 and 6 that penetrate through the
．． 7 is formed.

Further, from above the left end (first) cylindrical part 5, the housing 9
An inlet 11 is formed penetrating the upper surface, and an outlet 12 is formed penetrating the upper surface of the housing 9 from above the right end (third) cylindrical portion 7. Also, housing 9
A fuel oil/water supply block 17 is fixed to the inlet 11 portion on the top surface, and the block 17 has a fuel oil supply port 17a that opens on the side surface and communicates with the inlet 11, and also has a fuel oil supply port 17a that communicates with the inlet 11 from the top surface. It has a water supply pipe 17b extending to the inlet 11. Furthermore, an emulsian solution discharge pipe 19 is installed at a portion of the outlet 12 on the upper surface of the housing 9 so as to communicate with the outlet 12 .

Then, as shown in FIGS. 1 and 3, the cylindrical portion 5,
At 6.7, rotors (ie gears) 1, 2, and 3 having teeth 1a, 2a, and 3a on their outer peripheral surfaces are arranged, respectively.

Further, the axes lb, 2b, 3b of each rotor 1, 2, 3 are rotatably supported by plates 21, 22 fixed to both sides of the housing 9 by bolts 20, respectively, and the axis of the rotor 2 in the center is 2b extends through the plate 22, is supported in a liquid-tight manner by a holder 23.25 fixed to the plate 22, and is connected to a drive source C such as a motor (not shown). Further, the central (second) rotor 2 is meshed with the first rotor 1 and the third rotor on both sides thereof, and each rotor 1,
3, and at the same time, the meshing surface prevents the flow of liquid.

As shown in detail in FIG. 2, the cylindrical portion 5°6.7 is constructed by combining two semicircular portions with different center positions. Specifically, in the first cylindrical portion 5, a semicircular portion 5a on the inflow port 11 side is formed at a center that coincides with the center 01 of the rotor 1.
That is, an upper semicircular portion is formed and is located a predetermined distance (
For example, the lower semicircular portion 5b is formed at the center 0□ which is offset downward (2 + nm). Therefore, the upper semicircular portion 5a is
Its inner peripheral surface is the outer peripheral surface of rotor 1 lol! i. It has a cylindrical shape, that is, it slides into contact with the valve clearance to constitute a gear pump P, and the lower semicircular part 5b has a predetermined gap C formed with the outer circumferential surface of the rotor 1 to shear, stir, and This is an emulsion generation area E where mixing is performed to form an emulsion.

In addition, in the second cylindrical portion 6, the upper semicircular portion 6a is formed from the same center 03 as the rotor 2, and the lower semicircular portion 6b is formed from the center 04 slightly deviated downward from the center 03. has been done. Therefore, the upper semicircular portion 6b is in sliding contact with the outer circumferential surface of the rotor 2 at the valve clearance, and the lower semicircular portion 6b
A predetermined gap C2 is formed. Furthermore, in the third cylindrical part 7, the upper semicircular part 7a is transverse to the center 05 of the rotor 3, that is, the center 04 of the first rotor 1 and the center 05.
It is formed by the center 06 located at a predetermined distance # (for example, 2M) in the direction of the center O1 on the straight line connecting the -o5,
Further, the lower semicircular portion 7b is formed by a center 07 that is offset downward by a predetermined distance fi (for example, 2IIwl) from the rotor center 05. Therefore, the inner circumferential surface of the approximately 1/4 arcuate portion toward the outlet 12 makes sliding contact with the outer circumferential surface of the rotor 3 with valve clearance to constitute a gear pump P9, and the lower semicircular portion 7b , a predetermined gap C0 is formed with the outer circumferential surface of the rotor 3 to form an emulsion generation area E, and an outflow port 12
The circle from [IS] to the second rotor 2 is also an emulsion generation area E'.

Since this embodiment has a hypothetical configuration, when the second rotor 2 rotates in the direction of the arrow due to the rotation of the shaft 2b based on the drive source, the first rotor 1 and the second rotor 2 meshing with the rotor 2 are rotated. The second rotor 3 also rotates in the direction of the arrow. Then, first, due to the action of the gear pump part P of the first cylindrical part 5, the fuel oil and water supply pipe 1 from the fuel #4 oil supply port 17a are
The water from 7b is sucked in at a predetermined ratio and guided to the emulsion generation region E having a gap C1. And the area E
At this time, convection and vortex currents are generated between the liquid entangled with the teeth 1a and the liquid in the gap C1, whereby the water is sheared and atomized, and is stirred and mixed with the oil.

Furthermore, the mixed liquid of oil and water is guided to the second cylindrical portion 6 while being prevented from flowing upward due to the engagement between the rotors 1 and 2. In the second cylindrical portion 6, the teeth 2a of the rotor 2
The flow by and the flow by PIRQ2 are reversed,
The oil and water mixture is further stirred and mixed to make the water particles fine and uniform. Furthermore, the mixed liquid is prevented from flowing upward due to the meshing of the rotors 2 and 3, and flows into the third cylindrical portion 7.
In the emulsion forming region E having a gap C in the cylindrical portion 7, the oil and water are further stirred and mixed, and emulsion of oil and water progresses. Then, based on the gear pump part P of the third cylindrical part 7, the water particles are made fine and uniform to form a stable emulsion, and the liquid is sent to the outlet 1.
A part of the emulsion is further entangled with the rotor teeth 7a and introduced into the emulsion generating region E', where it is further finely and uniformly emulsified and discharged to the outlet 12. The emulsion solution having a predetermined pressure from the outlet 12 passes through the discharge vibrator 19 and is supplied to other devices such as a boiler and a diesel engine.

(G) As described in detail, according to the present invention, the outer circumferential surface of the rotors 1, 3 is formed at the portion facing the inlet 11 and/or the outlet 12 formed in the cylindrical portion 5.7. It slidably contacts the inner peripheral surface of the cylindrical part in a fluid-tight manner, and in other parts, there was a predetermined gap C between the outer peripheral surface of the rotor and the inner peripheral surface of the cylindrical part, so the gap C...
It is possible to continuously generate a stable emulsion solution with fine and uniform particles in the emulsion generation region E, which has a No special pump is required, the structure is simple, and the emulsion solution can be reliably supplied. Furthermore, since the gear pump section P and the emulsion generation region E are operated by the same rotor 1°3, by changing the rotation of the rotor, the generation of emulsion solution can be continuously changed to correspond to changes in the required amount. At the same time, it is possible to automatically supply an amount of the inphase solution commensurate with the amount of the emulsion solution produced, and the necessary amount can always be stably supplied without the need for a complicated control mechanism.

Moreover, if the rotors 1, 2, 3 and the cylindrical parts 5, 6, 7 are composed of at least three pieces connected in series, the emulsion generation area E is multi-staged, and particles can be made finer and more uniform. Not only can a good emulsion solution be obtained, but also gear pump sections P can be configured in the vicinity of both the inlet 11 and the outlet 12, and the supply and discharge of liquid can be performed smoothly and reliably.

Furthermore, two semicircular parts 5 having different centers around the cylindrical parts 5, 6, and 7 are formed.
A, 5b, 6a, 6b, 7a, and 7b can be easily and accurately formed by machining.

[Brief explanation of drawings]

FIG. 1 is a front sectional view showing an embodiment of the present invention, FIG. 2 is an enlarged sectional view showing the cylindrical portion and rotor, and FIG. 3 is a sectional view taken along the line T1 in FIG. 1.2,3... rotor, la, 2a, 3a...
Teeth, 5, 6, 7=・Cylindrical part, 5a, 5b. 6a, 6b, 7a, 7b - semicircular part, 9... housing, 11... inlet, 12... outlet,
c,, c2. c3... gap,
E, E'... Emulsion generation area, 01~0□
...Center, P...Gear pump.

Claims (3)

[Claims] (1) In an emulsion device comprising a rotor having teeth on its outer circumferential surface and a housing having a cylindrical portion for housing the rotor, the rotor is attached at a portion facing an inlet and/or an outlet formed in the cylindrical portion. A gear pump is constructed by sliding the outer circumferential surface of the teeth of the rotor in liquid-tight contact with the inner circumferential surface of the cylindrical part, and in other parts, a predetermined interval is left between the outer circumferential surface of the teeth of the rotor and the inner circumferential surface of the cylindrical part. Stirring/
An emulsion device characterized in that it is configured to perform a mixing action. (2) The rotor and the cylindrical part are composed of at least three pieces connected in series, and the cylindrical part located at one end forms an inlet, and the cylindrical part located at the other end forms an outlet. 2. The emulsion device according to claim 1, wherein both of the parts facing the inlet and the outlet are gear pumps. (3) The cylindrical part is composed of two semicircular parts with different centers, and the semicircular part on the inlet or outlet side approximately coincides with the outer circumferential surface trajectory of the rotor teeth near the inlet or outlet. 2. The emulsion device according to claim 1, wherein the other semicircular portion is eccentric to the opposite side of the inlet or the outlet.