FI61814B - EMULGERINGSANORDNING - Google Patents

Description

γβ! m) CONSUMPTION PUBLICATION, 1ft1.

'UTLÄGG NI NGSSKRI FT 6 löi 4 »ffig C <45> Patent" L: 4lai "' (51) Kv.lk?/lnt.ci.3 B 01 F 3/08 // C 10 L 1/32 ENGLISH FINLAND (21) Pttcnttlhakemui - Patantamökning 802303 (22) H »k« ml * pllvä - Araöknlngidag 22.07-80 ^ ^ (23) AlkupMvl - Glttljhaudag 22.07.8 0 (41) Has become public - Bllvlt offvntllg 23.01.82

Patent and Registration Office .... ...... . ,. ...

1 (44) Date of issue and issue of the publication. r, c an

Patent- och registerstyreisen An * ök »n utligd och utl.ikrlften publlcerad ιν.υο.οέ (32) (33) (31) Claimed privilege - Btgird priorltet (71) FinnReg Oy, Rajakatu 27, 18100 Heinola 10, Finland-Finland (FI) (72) Eljas Koskela, Heinola, Finland-Finland (FI) ('jb) CG. Gädeke (‘./O Emulgoimislaite - Emulgeringsanordning

The invention relates to an emulsifying device, in particular for emulsifying water in heavy fuel oil, in which device water is injected into the heated oil in a certain proportion by means of a nozzle in order to achieve a better combustion efficiency.

As the world's oil resources are limited, it has become urgent to maximize the use of crude oil. This has led to e.g. the oil intended for fuel oil has changed qualitatively, ie it has moved to a worse, ie heavier oil. On the other hand, general environmental protection regulations have been tightened.

For a long time, a method has been known in which water has been mixed with oil, i.e. an emulsion has been formed, water and oil fused as well as possible. Although the method has been known for a long time, it was not significantly used in its outdoor times. Hyt's new knowledge and better emulsification technology have brought the method back into use and of great interest. Namely, the emulsion provides some important benefits:

Combustion improves; The COg concentration in combustion increases.

The final flue gas temperature decreases.

The concentration of the substance is falling.

The soot spacing of the boiler will be reduced.

2 61 81 4

When preparing the emulsion, an attempt must be made to bring the water into the oil in drops of a certain size and to a certain extent. The droplet size should be 2-5 Jim. The amount varies from 4 to 6% by volume of oil in different burner manufacturers. The theoretical amount of water is 5 vol.-96.

When the water droplets in the emulsion are small enough, they are bound to the oil droplets, which are dispersed in the burner. the oil droplets heat up rapidly due to the hot gases generated and, even at a temperature of 100 ° C, water vapor is formed which "blows" * the oil drop into Sara into numerous smaller droplets, which results in a reduced burning time and thus a lower solids content.

an oil-in-water emulsion is obtained using various methods. The most common is the so-called. a spraying method in which water is injected into an oil pipe or pump by means of a nozzle or nozzles. Such are, for example, the devices of U.S. Patents 3,741,712 and 4,048,963. In the latter case, the device further comprises a vibrator with which the sound waves are used to improve the quality of the emulsion. Yes, the well-known devices work satisfactorily when it comes to normal heavy oil. If, instead, efforts are made to use an even thicker and cheaper part of the crude oil, they will not be enough to produce a sufficiently fine and homogeneous emulsion.

The object of the present invention is to provide an emulsifying device with which even this heaviest part of crude oil can be utilized in burners. According to the invention, this is possible mainly due to the combined effect of two factors, namely that the water is heated before it is fed to the oil through a forced valve and that the emulsion thus formed is further treated in a special mixer before it is fed to the burner. The features of the invention will become more apparent from the claims.

The invention will now be described in more detail with reference to the accompanying drawing, which shows an embodiment of the invention, in which:

Fig. 1 is a schematic view of an emulsifier according to the invention with associated water heating devices and an emulsion mixer, and Fig. 2 is a side view and a cross-section of the mixer itself.

The water is optionally preheated via a high-pressure pump 1 to an electric water heater 2, where the water is heated to 80-120 ° C. from there the water passes through a forced valve 3, 3 61814 which infinitely adjusts the amount of water according to the amount of oil, to the water spray nozzle 4 at the other end of the mixer. Attached to the end of the shaft 5 are two concentric rotating cylinders 8 with small radial thighs, between which there is a fixed, similarly routed cylinder 9 attached to the other end of the housing. tubular nozzle holder 12 longitudinally adjustable! is threaded and locked with a nut 13-The nozzle 4 is threaded to the nozzle holder 12, so that it can be easily exchanged for a larger or smaller size.

At the bottom of the cylindrical body 10 there is a pipe connector 14 for the inlet of crude oil and at the top of the housing 5 there is a pipe connector 15 for the outlet of the finished emulsion. The shaft 7 is mounted on a sleeve 16 in the end plate of the housing 5 by means of sealing rings 17 and a clamping sleeve (not shown in the drawing). The diameter of the holes in the cylinders 8 and 9 can be e.g. 0.5-1.5 mm and the spacing of the cylindrical surfaces 1-2 mm. The speed of the shaft 7 and the cylinders 8 and 9 can suitably be 2800 rpm. If it is significantly higher then the centrifugal force tends to separate the water and the oil.

The device according to the invention operates as follows: Water is passed through a high-pressure pump, pressure e.g. 25 bar, through a water heater 2 with electric resistance and a forced-out valve 3 to a nozzle 4. under a pressure of bar to the pipe connection 14 and from there inside the cylinder 8, where it is mixed with water mist from the nozzle 4.

The semi-finished emulsion thus formed passes through the holes of the rotating and fixed cylinders alternately in the mixer and thus mixes well, so that a fine and homogeneous emulsion is formed which exits through the pipe connection 15 into the burner.

Thus, thanks to the use of heated water and a stirrer, a high-quality emulsion is obtained even if very heavy crude oil is used.

However, the structure of the mixer can be considerably modified within the scope of the claims below.

Claims (3)

4 6181 4 An emulsifier, in particular for emulsifying water into heavy fuel oil, in which water is injected into the heated oil in a certain proportion by means of a nozzle (4) to achieve better combustion efficiency, characterized in that the water is heated in a water heater (2) to 80-120 ° C before feeding through a forced valve (3) into the oil and that the resulting emulsion is treated in a mixer (5) formed by a plurality of rotating, concentric and torn cylindrical surfaces (8,9) through which the emulsion is forced to pass for better emulsion quality. Device according to Claim 1, characterized in that the agitator is formed by a cylindrical closed housing (5), in the direction of the longitudinal axis of which, at the end opposite the nozzle (4), a motor-rotating shaft (7) extends to the housing (5). two axial (7), i.e. concentric, rotating cylinders (8) with small radial holes, between which there is a fixed, similarly routed cylinder (9) fixed to one end of the housing (5), through the holes of the cylinders the emulsion of which is to go from the inside out. Device according to Claim 1 or 2, characterized in that the nozzle (4), which is located substantially in the same line as the shaft (7), is threadedly attached to the nozzle holder (12) and is thus interchangeable, and that the nozzle holder (12) the position in the longitudinal direction is adjustable.