KR20120053247A - Emulsion fuel production manufacturing apparatus - Google Patents

Abstract

PURPOSE: Emulsion fuel emulsifying apparatus is provided to improve stability of phase, thereby preventing oil-water separation after long-term storage. CONSTITUTION: Emulsion fuel emulsifying apparatus comprises a first and a second mixers(140,160), a first and a second stabilizer(150,170), and an emulsion fuel storage tank(180). The oil, water and an emulsifier are supplied by forcible delivery. The first mixer generates emulsion fuel by whirling and dispersing mixed fluid of oil, an emulsifying agent, and water. The first stabilizer improves phase stability of emulsion fuel flowed in from the first mixer. The second mixer forms vortex by the emulsion fuel from the first stabilizer. The second stabilizer improve the phase stability of emulsion fuel flowed in from the second mixer. The emulsion fuel storage tank stores the emulsion fuel exhaust from the second stabilizer.

Description

Emulsion fuel production manufacturing apparatus

The present invention relates to an emulsion fuel emulsifier for producing emulsion fuel from heavy oil and supplying it to a combustion device such as a boiler.

In general, an emulsion refers to a state in which another liquid which is not mixed with the liquid is uniformly dispersed in an atomized state in the liquid. Emulsion fuels are emulsion-type fuels in which water is dispersed as small particles in oil and is in a combustible emulsion state.

Emulsion fuel is a mixture of water and emulsifiers (surfactants) in high-viscosity fuels with high C / H ratios, such as low-cost, high-calorie heat fuel, heavy oil (bunker seed oil), which is extremely limited in use due to air pollutants.

In general, emulsion fuels significantly improve the combustibility of the fuel.

The principle is that fuel droplets are sprayed by the burner during combustion of the emulsion fuel, causing water droplets in the primary atomized oil drop to evaporate rapidly in the combustion chamber high temperature environment, i.e., micro explosion. This is because the remains are optimally atomized so that the contact area between combustion air and fuel is maximized and completely burned.

As such, emulsion fuels are unique among the fuel injection technologies and show the best fuel atomization performance. The fuel atomization performance of the emulsion fuel increases the combustion efficiency of the low-combustible low-end fuel and significantly reduces the scale deposition of the combustion chamber and the heat transfer surface due to unburned fuel to maintain the initial heat transfer efficiency.

In addition, it is possible to reduce the excess air for combustion by improving the combustibility to increase the overall thermal efficiency leads to fuel savings. In addition, the concentration of dust, soot, nitrogen oxides (NOx), and carbon monoxide (CO), which are the main causes of air pollution, can be minimized.

Due to the superiority of the emulsion fuel technology itself, the emulsion fuel has been steadily researched and developed since the beginning of the 20th century.

Emulsion fuels are unstable dispersion systems between fuel oils and liquids such as water that do not want to mix with each other, and it is difficult to produce uniform emulsion fuel oil in a finely dispersed state in which the effects of the emulsion fuel are optimal. It is more difficult to supply. Due to the nature of these emulsion fuels, many attempts to make emulsion fuels have not been put to practical use.

The emulsion fuel in a homogeneous state can be said to be a state in which phase stability is maintained, and mainly include a constant size of a moisture particle, a constant moisture ratio, and a constant temperature maintenance. Specifically, the constant size of the water particles means that the water particles having a size of 5 to 20 μm set according to each combustion condition maintain a constant average particle diameter regardless of time. One specific moisture ratio set according to each combustion condition of the skin is maintained accurately regardless of time. In addition, maintaining a constant temperature means that a specific preheating temperature set according to each combustion process of the preheating temperature of the emulsion fuel 60 to 90 ° C is maintained regardless of the passage of time.

Maintaining the uniform state of the emulsion fuel is important because of the correlation with the combustion device such as a burner that burns the fuel, that is, when the fuel is supplied in an irregular state affects the set air-fuel ratio adjustment, injection nozzle adjustment, etc. of the combustion device. Specifically, if the phase stability of the emulsion fuel is destroyed and the water particles become huge or the water content suddenly decreases to 10% during the supply of the emulsion fuel having a water ratio of 20%, the flame state becomes irregular, misfires, and the water content decreases. However, the air cost is also reduced together, so it is easy to generate smoke due to lack of air cost.

If the temperature of the emulsion fuel is also not kept constant, the temperature of the emulsion fuel is related to the viscosity, so that the viscosity of the fuel supply to the burner becomes high as the viscosity is high and low. This irregularity is forced to increase the excess air ratio of the burner for the stability of the combustion, which leads to a negative effect that the meaning of using the emulsion fuel fades, such as a decrease in thermal efficiency.

In order to obtain a good emulsion fuel of the prior art, an emulsion fuel such as a surfactant or other emulsifier is mixed in the running water and the emulsion fuel is manufactured by a high performance mixer or emulsion fuel manufacturing apparatus. Due to the difference in specific gravity difference and interfacial tension between fuel oil and water, phase stability and oil / water separation phenomenon occur, and there is a problem that fuel oil is not continuously supplied uniformly due to inaccuracy and unstable system of each input and input ratio. . For this reason, there is a problem in that the frequent interruption of combustion occurs in the combustion process and the desired efficiency of reducing fuel oil is not achieved because of poor combustion efficiency or poor performance.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an emulsion fuel emulsifying apparatus capable of producing an emulsion fuel having excellent phase stability.

In addition, it is an object of the present invention to provide an emulsion fuel emulsification device capable of continuously producing emulsion fuel, minimizing the size of the emulsifying device, minimizing the installation space, and simplifying construction and maintenance.

In order to achieve the above object, the emulsion fuel emulsifying apparatus according to the present invention comprises a primary mixer for supplying oil, water, and an emulsifier by pumping the pump to disperse the mixed fluid of oil, emulsifier, and water by vortexing to emulsify the fuel; The primary ballast to increase the phase stability of the emulsion fuel flowed from the primary mixer first, the secondary mixer for the vortex flow of the emulsion fuel flow from the primary ballast ;, The phase stability of the emulsion fuel introduced from the secondary mixer It is configured to include a secondary ballast, the emulsion fuel storage tank for storing the emulsion fuel discharged from the secondary ballast.

At this time, the water tank in which the water is stored is characterized in that the heating wire for heating the water is installed.

In addition, the primary mixer and the secondary mixer is composed of two bubble jet in series in the body, the bubble jet is a net type of the net installed in the housing at regular intervals, the first net, the second net, the third net and Fourth net; characterized in that formed.

In addition, the size of the flow hole of the second net and the third net is characterized in that it is configured smaller than the size of the flow hole of the first net and the fourth net.

In addition, between the second net and the third net is characterized in that it further comprises a cross-guide protruding helically from the inner wall of the housing to convert the emulsion fuel flow into a spiral vortex.

In addition, between the first and second nets, and between the third and fourth nets, characterized in that it further comprises a guide protruding helically from the inner wall of the housing to convert the emulsion fuel flow into the vortex.

In addition, the primary ballast and the secondary ballast is provided with an inlet pipe and a discharge pipe body; A first net, a second net, a third net, and a fourth net having a net shape installed at regular intervals in the body; And a predetermined number of flow pipes installed between the second net and the third net to direct the flow of the emulsion fuel in a direct current form.

In addition, the size of the flow holes of the second net and the third net is characterized in that the larger than the size of the flow holes of the first net and the fourth net.

In addition, the cross-sectional shape of the first net, the second net, the third net and the fourth net is formed in a parallelogram shape, characterized in that the acute angle of the cross section is configured to face the flow direction of the mixed fluid.

In addition, the transfer pipe for connecting the lower portion and the upper portion of the emulsion fuel storage tank to transfer the emulsion fuel in the lower portion of the storage tank to the upper portion by driving the pump.

The present invention configured as described above has a good combustion efficiency, and excellent in phase (phase) stability can produce an emulsion fuel that is not separated from water even if stored for a long time. In addition, the small size of the installation can be installed in a small space, there is an advantage that the maintenance is very easy.

1 is a view showing the configuration of an emulsion fuel emulsifying apparatus according to the present invention.
2 is a perspective view of a bubble jet.
3 is a cross-sectional view taken along the line AA of FIG.
4 is a perspective view showing a ballast.
5 is a cross-sectional view showing a cross section of the first to fourth nets.
6 shows an emulsion fuel storage tank.
7 is a cross-sectional view taken along line BB of FIG. 4.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the configuration of the emulsion fuel emulsifying apparatus according to the present invention, Figure 2 is a perspective view showing a bubble jet 141, Figure 3 is a cross-sectional view taken along line AA of Figure 2, Figure 4 is a ballast 150 ) Is a perspective view, Figure 5 is a cross-sectional view showing a cross-section of the first to fourth nets, Figure 6 is a view showing the emulsion fuel storage tank 180.

As shown in FIG. 1, the emulsion fuel emulsifying apparatus according to the present invention includes an oil tank 110 for storing oil such as bunker oil, an emulsifier tank 120 for storing an emulsifier, and a water tank 130 for storing water; Primary stabilizer to improve the phase stability of the emulsified mixed fluid through the primary mixer 140, the primary mixer 140 to emulsify the mixed fluid mixed with oil, emulsifier, water by vortex flow ( 150), a secondary mixer 160 for increasing the phase stability of the emulsified mixed fluid through the secondary mixer 160 and the secondary mixer 160 to vortex the emulsified mixed fluid again so that smaller particles are dispersed. The ballast 170, and the emulsion fuel storage tank 180 for storing the emulsion fuel.

Oil, emulsifier and water stored in the oil tank 110, emulsifier tank 120, water tank 130, respectively, is supplied to the primary mixer 140 by the pressure of the metering pump (not shown), and the primary mixer ( 140) emulsifies fuel by dispersing oil, emulsifier and water, respectively.

At this time, by forming a heating wire (not shown) in the water tank 130 by heating the water stored in the water tank 130 to a temperature of 80 ~ 90 ℃ oil when the water is mixed with high viscosity oil, such as bunker oil By lowering the viscosity of the fluidity is increased, the load on the inside of the emulsifier is reduced, and the produced emulsion fuel is smoothly injected from the nozzle 190.

The primary mixer 140 is formed by inlet and outlet pipes through which fluid is introduced and discharged on both sides of the body, respectively, and inside the body, two bubble jets 141 are connected in series.

As shown in FIG. 2, the bubble jet 141 has inlet pipes 142a and outlet pipes 142b formed at both sides of the housing 143, and includes a first net 144 and a first inside of the housing 143. The two nets 145, the third net 146, and the fourth net 147 are sequentially configured. The first net 144 to the fourth net 147 is formed in the form of a net formed with a plurality of hole-shaped flow holes 200, water and oil supplied to the inside through the inlet pipe 142a by pumping the pump And the emulsifier passes through the first net 144 to the fourth net 147 sequentially to disperse the water particles, emulsifier particles, oil particles to emulsion fuel.

In this case, the size of the flow hole 200 of the second net 145 and the third net 146 is preferably smaller than the size of the flow hole 200 of the first net 144 and the fourth net 147. . That is, the water, oil, and emulsifiers pumped by the pump pass through the first net 144 and are converted into a flow of water, oil, and emulsifier fine vortices, and the particles are dispersed and combined to generate emulsion fuel. Passing through the second net 145 configured to be smaller than the size of the flow hole 200) and fine particles are dispersed more fine atomization performance of the emulsion fuel is improved.

Particles of water, oil, and emulsifiers are passed through the third net 146 in which the emulsion fuel is finely split through the second net 145 having the small size of the flow hole 200 and the flow hole 200 having the fine size is formed again. These are more finely and strongly bound by the microvortex. In addition, the emulsion fuel passing through the third net 146 is the fourth net 147 having a flow hole 200 larger than the size of the flow holes 200 of the second net 145 and the third net 146. As it passes through, the emulsion fuel forms vortices to improve phase stability.

Also, as shown in FIGS. 2 and 3, it is preferable to form a cross guide 149 protruding spirally from the inner wall of the housing 143 between the second net 145 and the third net 146. Do.

The cross guide 149 is an emulsion fuel that flows over the housing 143 by the cross guide 149 before the emulsion fuel passing through the second net 145 enters the third net 146. ) Emulsion fuel flowing down the housing 143 to the housing 143, emulsion fuel flowing to the left of the housing 143 to the right of the housing 143, and flowing to the right of the housing 143. Strongly rotates the emulsion fuel so that it flows to the left side of the housing 143 to facilitate the dispersion and bonding of the particles.

The guide 148 protruding into the housing 143 and spiraling between the first net 144 and the second net 145 and between the third net 146 and the fourth net 147. By converting the flow of emulsion fuel flowing between the first net 144 and the second net 145, between the third net 146 and the fourth net 147 into a vortex flow to disperse the particles and It is desirable to configure the coupling to be more smooth. The guide 148 is configured to be smaller than the cross guide 149.

The two bubble jet jets 141 configured as described above are configured in series in the primary mixer 140.

The emulsion fuel formed by dispersion-bonding particles of oil, water, and emulsifier through the primary mixer 140 flows the primary stabilizer 150 to increase phase stability. Increasing phase stability allows the particles to bind more firmly so that the dispersedly bound particles do not separate.

As shown in FIG. 4, the primary ballast 150 has inlet pipes 151a and outlet pipes 151b formed on both sides of the body 152, and a first net 153 inside the body 152. The second net 154, the third net 155, and the fourth net 156 are sequentially configured. The first net 153 to the fourth net 156 is formed in a net form in which a plurality of hole-shaped flow holes 200 are formed, and the emulsion fuel passing through the primary mixer 140 is introduced through the inlet pipe 151a. It is supplied to the through and pass through the first net 153 to the fourth net 156 sequentially, the binding force between the particles is increased to improve the phase stability.

In this case, the size of the flow hole 200 of the second net 154 and the third net 155 may be larger than the size of the flow hole 200 of the first net 153 and the fourth net 156. . That is, the emulsion fuel in which water, oil, and emulsifier particles are dispersed and coupled by the primary mixer 140 is equal to the size of the flow hole 200 of the first net 153 (the flow hole size of the fourth net of the primary mixer). It is preferable to configure a larger or larger.) The bonding force between the particles is increased while passing through the second net 154 and the third net 155 having the larger flow holes 200.

4 and 7, an emulsion having a predetermined number of flow pipes 157 formed between the second net 154 and the third net 155 to pass through the second net 154. The flow of fuel is converted to laminar flow to ensure that the binding of dispersed particles is stabilized. The flow of the emulsion fuel passing through the second net 154 is in a state of vortex and turbulent flow, and the emulsion fuel flows through the flow pipe 157 to perform laminar flow, thereby increasing phase stability.

The emulsion fuel that has passed through the primary stabilizer 150 passes through the secondary mixer 160 and the secondary stabilizer 170 having the same structure as that of the primary mixer 140 and the primary stabilizer 150. The water, oil and emulsifier particles are dispersed and bound into smaller particles and have high phase stability.

First nets 144, 153 to fourth nets 147, 156 constituting the primary mixer 140, the primary ballast 150, the secondary mixer 160, and the secondary ballast 170. As shown in FIG. 5, the cross section of the wire constituting the network is formed into an equilibrium quadrangle, wherein the acute angle of the equilibrium quadrangle, which is the wire cross section, is directed in the flow direction of the emulsion fuel so that the emulsion fuel flows through the flow hole 200. It is desirable to configure so that less pressure load occurs when passing through.

The emulsion fuel produced through the secondary ballast 170 is introduced into and stored in the inlet pipe 182 of the emulsion fuel storage tank 180. As shown in FIG. 6, the emulsion fuel storage tank 180 includes a transfer pipe 184 having a pump 185 to communicate internally with a lower portion and an upper portion of the body 181 of the emulsion fuel storage tank 180. It is preferable to configure the water and oil particles of the emulsion fuel so that oil and water are not separated from each other by continuously conveying and circulating the emulsion fuel under the emulsion fuel storage tank 180 by the driving of the pump 185.

The emulsion fuel emulsifying apparatus according to the present invention has been described above.

It will be understood by those skilled in the art that the technical features of the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the appended claims rather than the foregoing description, and the meanings of the claims and All changes or modifications derived from the scope and the equivalent concept shall be construed as being included in the scope of the present invention.

110: oil tank
120: emulsifier tank
130: water tank
140: first mixer
141: Bubble Jet
142a: inlet pipe
142b: discharge pipe
143: housing
144: first net
145: second net
146: third net
147: fourth net
148 Guide
149: Cross Guide
150: primary ballast
151a: inlet pipe
151b: discharge pipe
152 body
153: first net
154: second net
155: third net
156: the fourth net
157: flow pipe
160: 2nd mixer
170: secondary ballast
180: emulsion fuel storage tank
181: body
182: inlet pipe
183: discharge pipe
184: feed pipe
185 pump
190: burner
200: flow hole

Claims (10)

The oil, water and the emulsifier is supplied by the pump pumping the primary mixer (140) for the emulsion fuelization by dispersing the fluid mixture of oil, emulsifier and water by vortex flow;
Primary stabilizer 150 to increase the phase (stability) of the emulsion fuel flowed from the primary mixer 140 at all times;
Secondary mixer 160 for the vortex flow of the emulsion fuel introduced from the primary ballast 150;
A secondary stabilizer 170 for increasing phase stability of the emulsion fuel introduced from the secondary mixer 160;
Emulsion fuel emulsifying apparatus comprising a; emulsion fuel storage tank (180) for storing the emulsion fuel discharged from the secondary ballast (170).
The method of claim 1,
Emulsion fuel emulsifying apparatus, characterized in that the heating tank for heating the water is installed in the water tank 130, the water is stored.
The method of claim 1,
The primary mixer 140 and the secondary mixer 160,
Two bubble jets 141 are configured in series in the body, and the bubble jets 141 are formed in the housing 143 at a predetermined interval in a net form of the first net 144, the second net 145, Emulsion fuel emulsifying apparatus, characterized in that; third net (146) and fourth net (147).
The method of claim 3,
Emulsion fuel emulsifying apparatus characterized in that the size of the flow holes 200 of the second net 145 and the third net 146 is smaller than the size of the flow holes of the first net 144 and the fourth net 147. .
The method of claim 3,
And a cross guide 149 between the second net 145 and the third net 146 to protrude spirally from the inner wall of the housing 143 to convert the emulsion fuel flow into a spiral vortex. Emulsion fuel emulsifier.
The method of claim 3,
Between the first net 144 and the second net 145 and between the third net 146 and the fourth net 147 protrudes spirally from the inner wall of the housing 143 to convert the emulsion fuel flow into the vortex Emulsion fuel emulsifying apparatus characterized in that it further comprises a guide (148).
The method of claim 1,
The primary ballast 150 and the secondary ballast 170,
A body 152 provided with an inlet pipe 151a and an outlet pipe 151b;
A first net 153, a second net 154, a third net 155, and a fourth net 156 having a net shape installed at regular intervals in the body 152;
And a predetermined number of flow pipes (157) disposed between the second net (154) and the third net (155) to direct the flow of the emulsion fuel in a direct current form.
The method of claim 7, wherein
The emulsion fuel emulsifying apparatus is characterized in that the size of the flow hole of the second net 154 and the third net 155 is larger than the size of the flow hole 200 of the first net 153 and the fourth net 156. .
The method according to claim 3 or 7,
The cross-sectional shapes of the first nets 144, 153, the second nets 145, 154, the third nets 146, 155, and the fourth nets 147, 156 may be formed into parallelograms. Emulsion fuel emulsifying apparatus, characterized in that the acute portion of the cross section is configured to face the flow direction of the mixed fluid.
The method of claim 1,
Emulsion fuel, characterized in that the transfer pipe 184 is connected to the lower and upper portion of the emulsion fuel storage tank 180 to transfer the emulsion fuel in the lower portion of the storage tank 180 to the upper by driving the pump 185. Emulsifier.

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