JPS58140506A - Method and device for producing and burning oil-water emulsion - Google Patents

Abstract

PURPOSE:To increase the combustion efficiency of an emulsion fuel by producing a stable oil-water emulsion and utilizing water gas shift reaction. CONSTITUTION:An oil-water emulsion is injected from an oil burner 20 into a reaction combustion device 10. The oil-water emulsion mixed and compressed by preheating secondary air through small holes 7 stays within the inner cylinder heated to approximately 700-1,000 deg.C, and pulverized water drop within oil explodes by high heat and vaporizes with the fuel, thermal decomposition of the water content is carried out and water gas shift reaction is caused and generated hydrogen or an aqueous gas produced by the reaction is mixed with the atomized fuel oil to carry out combustion. Further, complete combustiok is performed rapidly by oxygen generated simultaneously with decomposition of water in an amont less than the theoretical air quantity. Accordingly, the combustion efficiency can be increased and economization of the fuel oil becomes possible.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a method and apparatus for producing and burning oil wood mulch. In particular, the present invention relates to a combustion method and apparatus that produce stable oil-wood mulch carbon and significantly improve the combustion efficiency of emulsion fuel by utilizing a water gas conversion reaction.

Conventionally, it is common practice to mix water with fuel and burn it as a so-called oil-water emulsion. There is a limit to the amount of water that can be added due to lack of stability or the need to prevent heat loss from the flame, and combustion efficiency is greatly affected by the structure of the combustion furnace used, the type of material to be heated, heating conditions, etc. and lacks versatility. However, the amount of water added is approximately 20- or less, and the fuel saving is also 1594 @
It is difficult to go beyond this level, and the improvement is usually limited to just a few points. In the production of the oil-water emulsion O of this invention, several barriers are provided at intervals on the inner surface of the heating cylinder, and two
The oil and water are completely stirred and mixed while passing sequentially from the bottom of the mixing milk divided into several chambers (usually 4 chambers) by rotating the blades at right angles. Even in a water-temperature oil-containing emulsion with a high O content, the water and oil O particles are fine (IF-5) and homogeneous, so the balance of attraction is maintained and the aggregation does not occur, so it is very easy to use even without using an emulsifier. It is stable and a nine-oil/water emulsion can be obtained. Furthermore, in the combustion according to the present invention, pressurized air can be blown from the outer periphery as a swirling flow, and a gasification reaction combustor with a heat-resistant structure [which is installed at the tip of the oil burner O to gasify and burn the oil-water mixed emulsion] is used. Even in the combustion of water-mixed oil emulsion carbon at a high rate of 40- or more, it is possible to increase the combustion efficiency without heat loss by using the high-calorie gas from the water gas conversion reaction for the combustion reaction. Can be done. That is, the oil/water emulsion spray is produced by preheating swirling air f at a high temperature of 700°C to 1000°C in the reaction combustor.
The mixture is compressed at 1 mK and thermally decomposed by the stagnation phenomenon, resulting in the simultaneous combustion effect of hydrogen and reaction product water gas, and the synergistic effect of rapid and complete combustion of oxygen at less than the theoretical air amount due to the generated oxygen. Makes combustion more efficient and
and significantly improve the versatility of the application purpose.
Nita.

The above water gas conversion reaction is based on the following reaction formula.

0m1in + mWWO2:: woo + (m+
-) H*oo+i, o @ ao, +m.

co+sm, ヰ OH4+'B, 0 ζThe rate of progress of the reaction depends on the equilibrium constant under the reaction conditions)
Determined. On the other hand, the thermal decomposition process of heavy oil is 0xsHn −*
xao + (-) Hs], the reaction product gas and the thermally decomposed carbon and hydrogen undergo the following exothermic reaction in the combustion reaction.

0 + OH” 00! + 9 7. 6
[Kaaj Shumoj)! 1*+ %O* -11
10+ 4 & S (Kcal/mol)014
+ 201-001 + 211O+ 234.2
(KaaA/moj)00 + '710g -001
+ 6 & 2 (]Ccaj/mol) In other words, when the oil-water emulsion produced by the industrial combustor 1 according to Jin's invention is combusted in an oil burner equipped with a reaction combustor according to O's invention, the above-mentioned By using the reaction high-calorie generated gas, regardless of the user conditions, compared to oil-only combustion using a conventional commercially available oil burner, and compared to general O oil and water temperature emulsion combustion, it is stable and has a high rate of water temperature. A large amount of fuel can be saved by burning oil emulsion through gasification reaction. In addition, fiNOX, 80. is made possible by making it possible to combust a high percentage water-mixed oil emulsion of 401% or more. Noticeable decrease in tcia! It is also possible to obtain an effective method and device from the pollution control surface.

To explain the drawings, Fig. jlK1 is an explanatory diagram of the combustion apparatus O according to the present invention, which includes a gas reaction combustor 10ii (inner cylinder 1, air preheating cylinder 2, and outer cylinder 3), which is attached to the tip of the oil burner 20. be done. This oil burner is optional
can also be O. The outer cylinder 3 is connected to a blower 5, and the inner cylinder 1 is provided with around 1,000 small holes 7 around the periphery so as to allow rotational injection. The oil-water emulsion produced by the oil-water mixing emulsion device sO is injected from the oil burner 20 into the reaction combustor 10 through the outlet 42 or the fuel pump 21. 4 is this sprayed mist droplet flowing water. Blower 5 to O
The secondary air flows into the secondary air preheating cylinder 2 from the outer air gap 8 and is injected into the inner cylinder 1 from the small hole 7 as a swirling flow. The oil-water emulsion mixed and compressed (by ζO preheated secondary air) accumulates in this inner cylinder heated to approximately 700°C to 1000°C, and the atomized water droplets in the oil explode due to the high heat and explode together with the fuel. At the same time, vaporization and thermal decomposition of water occur, and a water gas conversion reaction occurs, where hydrogen or reaction product water gas and atomized fuel oil are mixed and combusted. Moreover, due to the simultaneous generation of oxygen by the water separation), complete combustion can be carried out quickly with less than the stoichiometric amount of air, making it possible to save a large amount of high-quality fuel oil.

FIG. 2 shows an overall assembly diagram of an oil-water mixing device 30, which is an oil-water emulsion generation device. Oil and water are separated into the deposit port 51
, and 32] are supplied by a water pump ssK, and the oil is sent from the mixer 54ft lower part s5 at a predetermined mixing ratio. Figure 5 is an enlarged cross-sectional view of the mixer s4.
The mixing chamber 54 is vertically divided into 4 O chambers, with a blade 9 in the center.
A shaft 44 having a fixed axis 45 rotates at high speed to stir and mix the oil and water. On the other hand, the cylinder Il! Inside the mixing chamber, three horizontal walls 37 are provided at 120° intervals, and oil and water are agitated and mixed by a series of rotating blades 43 and an O barrier s7. The central shaft 44 is rotated at high speed by a motor sS, and the outside of the mixing cylinder is cooled by a blower 39 to prevent the temperature of the oil-water emulsion carbon O from rising. The oil and water flowing from the oil and water intake port s5 at the bottom of the mixer ascends through the mixing chamber 36 from bottom to top while being mixed through the gap 401 with the shaft, is completely atomized, becomes a nine-stable emulsion, and is sent out from the oil feed port 41. The mixed oil is supplied to the oil burner #C via the mixed oil outlet 42.

Figure 4 is a partially broken side view of the blade 43, and Figure 5 is $4.
This is an end view of the figure viewed from the R direction, where M, B, and O%D are 4.
Two blades B, 0, and D are arranged at right angles on both sides of the lance 10. In the figure, 1 is a shaft hole through which the shaft 44 passes.

As an example, fuel was emulsified with the oil-water mixer of the present invention at a ratio of 65 parts water to 100 parts heavy oil (water addition rate st4%). If it is good to attach and burn (caseum)
, water 20% with this invention oil-water mixer without installing a reaction combustor.
%0 oil/water emulsion 1 liter [If it can be burned (case B),
and 30 in the case where only mu heavy oil is burned exclusively (case ○)
'P, V, O (polyvinyl chloride) by combustion method
In order to heat the atmosphere furnace used in the OdP airing process for immersed products, the following comparison was made when combustion was performed in an LO combustion furnace with effective dimensions of 800φ x 20oΩ LO combustion furnace at an oil pressure of 10 h/ex”.

The method and apparatus for generating and burning WAO oil and water engineering margin from ζO are as described above, and the burner O thermal efficiency is 479 g higher than that of conventional heavy oil O oil consumption, and the oil consumption remains at 60%. Moreover, it is a good idea to have a method and apparatus that contribute to energy saving in a very efficient manner.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of the TOOLLF- combustion device, Figure 2 is an overall assembly diagram of the oil-water mixing device, Figure 5 is an enlarged cross-sectional view of the mixing cylinder, and Figure 4 is a partially broken view of the blade. The side view, FIG. 5 is an end view of the blade seen from the OR direction in FIG. 4. Explanation of symbols 1...Inner tube, 2.9.Secondary air preheating tube, 5...Outer tube, 4...Injection flame, 5...Blower, 6...Injection port, 7... - Air injection port, 8... Gap, 10... Gas reaction combustor, 20... Oil burner, 21... Fuel pump, 50... Oil/water mixing device, 31. Fist/oil inlet, 52 ...Water inlet, 33...Oil supply water metering pump, 5
4... fist mixer, s5... oil/water inlet, s6... mixing chamber, 57... barrier, 58... fan motor, 59...
Cooling fan, 40... Gap, 41... (3 other people) Figure 1 10 Figure 2 Figure 3

Claims (1)

[Claims] 1) In a method of mixing heavy oil or light oil with water to produce and burn emulsion fuel, oil and water are supplied at a constant ratio to a mixer having a multi-stage special stirring mechanism. , a stable industrial fuel is produced without using an emulsifier, and is injected and burned in the gasification reaction II!1 burner via an oil burner. Hydrogen generated by micro explosion of water droplets due to heat (by accumulating) and thermal decomposition of oil and water gas and high calorie gas from water gas conversion reaction are used for combustion, and by utilizing the generated oxygen] Oil woodworking characterized by reducing air pressure! A method of growing and burning oil. 2) Pour oil and water into the circumference at a constant ratio using a metering pump. The system consists of nine special stirring mechanisms (two screws arranged at right angles to each other that rotate at high speed in the feeding cylinder) and a barrier on the inner surface of the mixing cylinder. tuc
A stable oil-water mixture is produced by central stirring without using an emulsifier, and this is attached to the tip of the burner via an oil burner, which is connected to the inner cylinder, secondary air preheating cylinder, and outer cylinder. The combustion is carried out in a heat-resistant gasification reaction combustor, and small holes are provided around the inner cylinder O for swirling and injecting pressurized air.
A device that uses explosion and gasification reactions to generate and burn an oil-water emulsion that produces 10 molds and greatly saves fuel.