CN85107382A

CN85107382A - Water in oil emulsion preparation and firing unit

Info

Publication number: CN85107382A
Application number: CN85107382A
Authority: CN
Inventors: 田中明雄
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-09-28
Filing date: 1985-09-28
Publication date: 1987-04-08

Abstract

A kind of apparatus and method that prepare the water in oil emulsion that burns comprise a cylindrical shape mixer (1), and fuel oil and water are mixed; There is a pressurized air jet flow to be directed into the end of mixer.A resistant to elevated temperatures inner container (101) is installed in the front end of mixer, also has the aperture (107 on auxiliary pocket preheating container and resistant to elevated temperatures outer container (103), the inner container (101), 117) make the pressurized air rotary-jet,, and be retained in the firing chamber water-in-oil emulsion flame rotation compression.Utilize microexplosion of water particulate and mixture pyrolysis to produce high treibgas body and fuel saving.

Description

Water in oil emulsion preparation and firing unit

The device of relevant water in oil emulsion preparation of the present invention and burning, concrete relevant a kind of fuel-burning equipment that makes water combustion gas shift reaction burner, can prepare stable water in oil emulsion, and can improve the combustion efficiency of emulsus fuel, this burner is made with pottery or through the high-temperature-resistant and anti-corrosion metal of special processing, and good high-temperature-resistant and anti-corrosion performance is arranged.

Fuel and water are mixed, and this water in oil milky mixt that burns has been the thing of knowing.Yet in this case,, be necessary to prevent the heat loss of flame, so amount of water is restricted because the water in oil emulsion instability perhaps when using the air of theoretical amount, improve combustion efficiency or reach perfect combustion.In addition, owing to the structure of combustion efficiency with firing unit, fuel type, the difference of heating condition or the like, and very big variation is arranged, the universal performance of water in oil emulsion is very poor.And, promptly use usually oil bag aqueous emulsion to prepare the used big machinery churner of equipment, perhaps fixed mixer, but, when oil and water being mixed and stir evenly, usually because the pipeline complexity, and make the emulsion storage tank because use one, the fuel that mixes is continuously supplied with to a burner, just can be owing to oil and water separation, or burst into flames and cause difficulty.So just need to use surface active agent, in fact just can not add water in a large number.

According to proposed by the invention, the step that comprises among the preparation method of water in oil emulsion is: utilize the pressurization of pump machine, oil and water press respectively be scheduled to example, spray respectively from the two ends of a T shape pipe, inject in the cylindrical shape mixer, again mixture is passed through from some passages.Passage is arranged in the spacer block, and spacer block and mixing chamber are alternately placed, and passage is done conical the layout, in order to mixture is spread.Mixture is pressurizeed by fluid power, passes through in the spiral slot from each revolving part of tunnel ends, is further rotated stirring in next mixing chamber, just continuously by some mixing chambers, mixture is thoroughly stirred mixing.Like this, even in water content reached water-in-oil emulsion more than 40%, the particulate (1 μ-3 μ) of water and oil can evenly suspend.Because gravity can get compensation well, and polymerization can't take place at once, therefore, does not need just can obtain high stability water-in-oil emulsion with emulsifier.

In addition, the burner that propose, that be installed in the end of cylindrical shape mixer according to the present invention, it is a kind of pyrolysis and combustion device of high-temperature-resistant and anti-corrosion, an interior ceramic vessel is arranged, the outside of heated compressed air from ceramic vessel, with the form of eddy flow to the ceramic vessel internal spray, in order to the burning water in oil emulsion, this mixture pyrolysis.Therefore, even in the burning water content during up to the water in oil emulsion more than 40%, the height card combustion gas that water combustion gas shift reaction is produced, still can improve combustion efficiency and not have thermal loss, just, with 700 ℃-1,000 ℃ preheating vortex gas-flow, water in oil emulsion is sprayed in the reactive combustion device, become compressed mixture, make it to take place pyrolysis by parking phenomenon, and, because hydrogen that reaction produces and the water combustion gas synergy when burning simultaneously, in addition by the air of theoretical amount produce oxygen play makes burning quicken and act on completely, make combustion efficiency have one significantly to improve, therefore the general service of this burner has significantly and improves.In above-mentioned reaction and combustion process, the inner container end will be heated to more than 1,400 ℃, in order to solve the loss that is caused by the sulphur etch in the reactor, has adopted the pottery of high-temperature-resistant and anti-corrosion or the metal of special processing, to improve the serviceability of equipment.

Above-mentioned water combustion gas shift reaction, and following reaction equation is done the basis:

Easy speech, fuel oil burner when the reactive combustion device that uses configuration the present invention to propose, burning is during with the prepared water in oil emulsion of emulsion preparation device of the present invention, no matter which type of requirement the user has, used the height card combustion gas of above-mentioned reaction product, because the stable water in oil emulsion that will contain high percentage moisture content, just may make the simple oil firing of selling with market of fuel oil burner that is higher than of fuel joint through pyrolysis processing, or with traditional method water in oil emulsion that burns.And, owing to can burn water content, found NO * SO at the water in oil emulsion more than 40% ₃Descend significantly etc. class, thereby prove that equipment proposed by the invention can prevent the pollution of the environment effectively.

Accompanying drawing is represented a desirable embodiment of 3 present devices, and accompanying drawing thes contents are as follows:

Fig. 1 is the transverse sectional view that water in oil emulsion that the present invention proposes prepares equipment.Fig. 2 (A) is the amplification transverse sectional view of mixing spacer block.Fig. 2 (B) is the end elevation that Fig. 2 (A) watches from the R direction.In Fig. 1, mixing chamber 2 and mixer spacer block 21 are shown, in cylindrical shape mixer 1, alternately place, a T-valve that fuel oil and water are mixed is arranged, be screwed in the upstream extremity of cylindrical shape mixer with screw thread, in the cylindrical shape downstream nozzle 8 that outlet 81 is arranged is arranged.Fuel through valve 5 and a flame tube 51, is sent into the fuel inlet 71 of T shape pipe by a special petrolift 3, in order to water and fuel oil are mixed.The motor of label 31 expression driven pump machines 3.Water by valve 6 and a water pipe 61, is sent into the water intake 72 of T shape pipe by a special water pump 4.

Fuel oil and water collide mutually in T shape pipe 7 and mix, and this mixture is made it to show eight passages from some passage 22(figure of radial arrangement mixer spacer block 21 by to right-hand conveying) in pass through, converge in the front aperture 23 in being arranged on the spacer block right side.There is a revolving part 24 to be installed in the front aperture 23.Fig. 3 (A) is a side view of revolving part 24, and Fig. 3 (B) is the end elevation that (A) observes from the R direction, and wherein revolving part 24 has spiral slot 25.Label 26 is a screw, is used for fixing revolving part 24.From passage 22,, from groove 25, drawn, entered next mixing chamber 2 inside behind the vortex, entered next spacer block 21 then by arriving the water in oil emulsion of front aperture 23.Before mixture reaches nozzle 8 ends, make it from mixing chamber and mixer spacer block by several times (being four times in the accompanying drawing).

Cylindrical shape mixer 1 is connected with the firing unit 10 of pyrolyzed mixture by a lid 31, the outlet 81 on the nozzle end and cover opening 32 on 31, common and firing unit 10 connections.The air feed blower 9 that drive motor 91 drives is supplied with an air jet, and the water in oil emulsion mixing of sending into the suction port 11 that builds on 31 and spraying from the nozzle 8 that exports 81 fronts is penetrated from opening 32 then, enters the firing unit 10 of hot mixt.

Fig. 4 illustrates the transverse sectional view of firing unit proposed by the invention.Firing unit 110 has an inner container 101, has a back-up ring 102 to be used for preheating and sucks air, and an outer cylindrical container 103 is arranged, be installed in emulsion nozzle 120(in Fig. 1 for covering 31) the end.Back-up ring 102 is connected with a blower 105, is provided with some apertures 107 around inner container 101, promotes the vortex and the injection of preheated air, and some apertures 117 are arranged in addition, and preheated air is sprayed round about.

Preparation of device among Fig. 1 and the water in oil emulsion that mixes are by being 9 among rotary blower 121(Fig. 1) air atomizing sent, spray into firing unit 110.One jet flow of label 104 expression fogged emulsions.The auxiliary air that blower 105 is sent enters back-up ring 102, and to air preheat, the air after the preheating is divided into the shunting of both direction, enters outer container 103 by

suction tude

108 and 109 respectively.From the preheating auxiliary air that suction port 108 enters, the angle with about 145 degree opposite with the aerosolized mixture flow direction sprays from aperture 117, and from the preheated air that suction port 109 enters, sprays from aperture 107, enters inner container 101 with the eddy flow state.The atomizing water in oil emulsion particulate that mixes through overcompression with the preheating auxiliary air is retained in the inner container, is heated to about 700 ℃-1,000 ℃, changes into the water droplet of particulate, owing to be heated and microburst.Water particulate and fuel gasify jointly, water combustion gas shift reaction takes place and burn.In addition, because the oxygen that elutriation produces when separating has made theoretical amount, the burning of AIR MIXTURES is quickened and fully, just fuel saving significantly.

Emulsion of Zhi Zuoing and firing unit like this, by the present invention's operation, the thermal efficiency ratio of burner uses heavy oil to improve more than 60% merely, and fuel consumption decline 35%-40%, therefore this device energy saving effectively.The device of combustion oil bag aqueous mixtures of the present invention does not need the auxiliary device of preparation water in oil emulsion, and is just not only practical but also versatility arranged.

Fig. 5 A and 5B, 6A and 6B represent other implementation methodss of the present invention.These are shown in the drawings to be interior hybrid type nozzle 120.In Fig. 5 A and 5B, water passes through from passage 131 at the middle part, and air is supplied with from inside diametrically passage 133, and fuel is supplied with by passage 132, thereby forms water in oil emulsion in nozzle 120.In Fig. 6 A and 6B, water is sent into by passage 131 at the middle part, but oblique to external shunt, and fuel is sent into by passage 132 and water mixes, and air is sent into by passage 133, in order to form water in oil emulsion in nozzle 120.An opening of label 134 expression nozzles 120.

Combustion method of the present invention and firing unit are described herein as above.The thermal efficiency of this burner improves 60% than simple use heavy oil at least, drops to 35%-40% and plough oil mass.Like this, apparatus and method of the present invention help the economic utilization of the energy greatly.Just: in the oil-water mixed combustion apparatus that the present invention proposes, do not need to be provided with the water in oil emulsion preparing apparatus, and oil mass can be increased at any time.This sample device just can be used for various purposes.

In aforesaid each embodiment, use be heavy oil or light oil, but also may use similar fuel, as slurry fuel and so on.

For example can mix, or coal dust is mixed with water, act as a fuel with coal dust and heavy oil.

Though the present invention has only been done concrete the separating narration of mediating a settlement with regard to its desirable embodiment, the people who is engaged in one's own profession skill is understood that and can also does above-mentioned in form and details and other variations, and do not break away from the spirit and scope of the present invention.

Now accompanying drawing simply is described below:

Fig. 1 is the transverse sectional view of water in oil emulsion preparing apparatus proposed by the invention.

Fig. 2 (A) is the transverse sectional view of an assembly of mixer spacer block.

Fig. 2 (B) is the transverse sectional view that Fig. 2 (A) observes from the R direction.

Fig. 3 (A) is the revolving part side view.

Fig. 3 (B) is the end elevation that Fig. 3 (A) observes from the R direction.

The firing unit schematic representation that Fig. 4 uses as mixture pyrolysis for the present invention.

Fig. 5 A and 5B and 6A and 6B illustrate other embodiment of the present invention.

Claims

1, the device of a kind of preparation and burning water in oil emulsion, be characterized as comprising a cylindrical shape mixer (1) and accept the pump machine by T shape pipe (7) supply, fuel and water that the ratio of predetermined fuel and water is arranged, and fuel oil and water mixing, cylindrical shape mixer (1) has some mixer spacer blocks (21), in a side passage of arranging by taper shape (22) is arranged in its each, opposite side has a revolving part (24), there is the space of formation mixing chamber (2) to make to mix usefulness, mixer spacer block (21) and mixing chamber (2) are alternately placed, there is a pressurized air jet flow to be directed into the end of cylindrical shape mixer (1), an inner container (101) made from the high-temperature-resistant and anti-corrosion metal of pottery or process special processing is arranged, be installed in the front end of cylindrical shape mixer (1), its outlet is towards the firing chamber of burner, the firing chamber is the water-in-oil mixture pyrolysis, the auxiliary air preheating container is arranged, with an outer container (103) made from refractory metal, foregoing device (101) has some apertures (107 on every side, 117), pressurized air rotation and injection, thereby water in oil emulsion flame is rotated, compression, and be retained in the firing chamber, thereby mainly utilize high treibgas body that the microexplosion of water particulate and mixture pyrolysis produce and fuel saving.

2, a kind of water content of burning is about the device of 40% fuel-water emulsion, be characterized as a fuel oil burner is wherein arranged, a nozzle (120) is arranged in the said burner, wherein have first, second and three-fluid passage (131,132,133) and a conjoint outlet hole, there is device to supply with fuel and the water that metering is arranged to first passage and second channel respectively, there is a device that pressurized air is supplied with above-mentioned third channel, above-mentioned fuel, water and compressed-air actuated mixture outwards spray by above-mentioned exit orifice.

3, a kind of device as being set forth in 2 of the claims the, be characterized as and also comprise combusting room device in addition, wherein there is one the inner container (101) that is essentially the middle part of columnar major diameter is arranged, the tapered tail that an inside convergent is arranged, its swedged opening is used for the fuel burner outlet fixing, a Frusto-conical front end is arranged partly, on the opening of diameter reduction is arranged, an outer container (103) is arranged around the foregoing device, and have between the inner container at interval, on opposite end, fix with inner container, form an auxiliary air preheating chamber, some eyelets (107 are arranged on the foregoing device, 117) form, make the internal communication of above-mentioned preheating chamber and said vesse, there is the back-up ring device to be fixed on the foregoing device, between foregoing device and outer container, cover above-mentioned eyelet, there is air feeder upwards to state preheating chamber and supplies with pressurized air, thereby pressurized air is passed through above-mentioned eyelet (107,117), send into the inside of foregoing device, the water that sends from said burner-burning emulsion flame compression, force above-mentioned flame rotation, and rest in the foregoing device (101), impel water particulate microburst, simultaneously the aqueous emulsion pyrolysis.

4, water content is at least the combustion method of water-fuel emulsion of 40%, be characterized as comprising water-fuel emulsion from burner, spray in the formed firing chamber of advancing to be fixed on the burner of inner container, supplementary compressed air, in the preheating chamber preheating that is arranged between foregoing device (101) and the outer container (103), then above-mentioned pre-hot compressed air, by the some eyelets (107 in the inner container butt partly that transports out of burner, 117), send into the firing chamber, the flame of the water that compression injection goes out-fuel emulsion fuel, force its rotation, and be retained in the firing chamber and under 700 ℃-1,000 ℃ temperature, burn, thereby impel little water particle to carry out microexplosion, simultaneously water-fuel emulsion fuel thermal decomposition.

5, a kind of moisture at least combustion method that reaches water-fuel emulsion fuel of 40% approximately, be characterized as and comprise to one having the nozzle (120) of independent outlet to supply with water simultaneously, fuel and pressurized air, pressurized air by above-mentioned nozzle (120) ejection, water-fuel emulsion is spurted into by the firing chamber that forms with burner convention device (101), supplementary compressed air, be arranged in preheating chamber preheating between foregoing device (101) and the outer container (103) at one, then above-mentioned pre-hot compressed air, by the some eyelets on the foregoing device (101), send into the firing chamber,, make its vortex the water of ejection-burning emulsion fuel flame compression, and stay in the firing chamber, under 700 ℃ of-1000 ℃ of temperature, burn, thereby impel the water particulate to carry out microexplosion, and water-fuel oil emulsion fuel carries out pyrolysis.