JP2001090524A - Exhaust emission control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject device capable of removing hydrocarbons and the like in exhaust gas. SOLUTION: This device is provided with an exhaust emission purifying vessel containing in its inside an exhaust emission purifying liquid substantially nonvolatile at an ambient temperature and having affinity to the hydrocarbons, an exhaust introducing flow passage for introducing the exhaust to be purified into the purifying liquid contained in the purifying vessel, and an exhaust leading-out flow passage for leading out the exhaust passing through the inside of the purifying liquid to the outside of the purifying vessel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust gas purifying device, and more particularly to a device having a simple structure and capable of effectively removing harmful components in exhaust gas discharged from internal combustion engines such as diesel engines and gasoline engines. The present invention relates to an exhaust gas purification device that can be used.

[0002]

2. Description of the Related Art In large cities and areas along arterial roads, air pollution from automobile exhaust gas has become serious in recent years.

[0003] For gasoline vehicles, exhaust gas regulations have been tightened in recent decades, and combustion control in engines and oxidation / reduction of harmful components in exhaust gas by oxidation-reduction catalysts, three-way treatment catalysts, and the like have been performed. In general, purifying exhaust gas has become common. However, none of the above means could completely remove hydrocarbons and carbon monoxide in the exhaust gas.

[0004] As for exhaust gas purifying means for diesel vehicles, various means such as combustion control in an engine, increase in supercharging pressure, and hybridization with a motor have been studied.

[0005] However, the conventional exhaust gas purifying means is not satisfactory in the performance of removing harmful components such as soot and the like in the exhaust gas, and has a problem that the structure of the engine is complicated.

The present invention provides an exhaust gas purifying apparatus which can effectively remove soot and other hydrocarbons from exhaust gas of automobiles, especially diesel automobiles such as trucks and buses, and has a simple structure. An object of the present invention is to provide an exhaust gas purifying apparatus capable of effectively removing carbon monoxide, nitrogen oxides, sulfur oxides, and the like in addition to hydrocarbons.

[0007]

SUMMARY OF THE INVENTION The present invention provides (1) an exhaust gas containing an exhaust gas purifying liquid which is substantially non-volatile at room temperature and has an affinity for hydrocarbons. A purification tank, an exhaust gas introduction passage for introducing an exhaust gas to be purified into an exhaust gas purification liquid contained in the exhaust gas purification tank, and an exhaust gas passing through the exhaust gas purification liquid in the exhaust gas purification tank. And (2) substantially non-volatile at room temperature and having an affinity for hydrocarbons. A first exhaust gas purifying tank containing therein an exhaust gas purifying liquid having the same, and a second exhaust gas purifying tank containing therein a nitrogen oxide removing liquid having an affinity for nitrogen oxides and sulfur oxides And the said A first exhaust gas introduction passage for introducing an exhaust gas to be purified into an exhaust gas purification liquid contained in the exhaust gas purification tank, and an exhaust gas derived from the first exhaust gas purification tank are supplied to the second exhaust gas purification tank. A second exhaust gas introduction passage for introducing into the nitrogen oxide removing solution contained in the exhaust gas purifying tank, and an exhaust gas for guiding the exhaust gas introduced into the exhaust gas purifying liquid out of the second exhaust gas purifying tank; An exhaust gas purification device comprising: a gas lead-out channel.
(3) In the exhaust gas purifying tank in (1), the exhaust gas purifying liquid contained in the exhaust gas purifying tank is discharged to the outside of the exhaust gas purifying tank along with the exhaust gas flowing in the exhaust gas purifying liquid. The exhaust gas purifying apparatus according to (1), further comprising a purifying liquid discharge preventing means for preventing the exhaust gas from being exhausted.
(4) The first exhaust gas purifying tank in the above (2) is characterized in that the exhaust gas purifying liquid stored in the first exhaust gas purifying tank accompanies the first exhaust gas along with the exhaust gas flowing through the exhaust gas purifying liquid. The exhaust gas purifying apparatus according to (2), further comprising: a purifying solution discharge preventing unit configured to prevent the liquid from being discharged to the outside of the gas purifying tank. (5) The second exhaust gas purifying tank in (2) includes the second exhaust gas purifying tank. Nitrogen oxide removal for preventing the nitrogen oxide removing liquid stored in the exhaust gas purifying tank from being discharged to the outside of the second exhaust gas purifying tank along with the exhaust gas flowing in the nitrogen oxide removing liquid. (2) The exhaust gas purifying apparatus according to (2), which is provided with a liquid discharge preventing means, and (6) the purified liquid discharge preventing means in (3) or (4) is formed so that exhaust gas can flow therethrough. Flow into the perforated container and the perforated container. A fluid sphere filters and a set of spheres formed by capable housed (3) or (4)
(7) The exhaust gas purifying device according to (3) or (4), wherein the purifying liquid discharge preventing unit in (3) or (4) includes an exhaust gas flow bending unit that bends the flow of the exhaust gas. (8) The nitrogen oxide removal liquid discharge prevention means according to (5), wherein the exhaust gas purifying apparatus includes: a porous container formed with an exhaust gas capable of flowing through the inside; (9) The exhaust gas purifying apparatus according to (5), further including at least one of a flowing sphere filter including a group of spheres housed therein, and an exhaust gas flow bending unit configured to bend the flow of the exhaust gas. The exhaust gas purifying liquid in the above (1) is selected from the group consisting of lubricating oils, non-volatile petroleum liquids, and animal and vegetable oils.
The present invention relates to the exhaust gas purifying apparatus according to any one of (1) to (8), which is at least one kind of organic liquid.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (1) Example 1 FIG. 1 shows an internal structure of an example of an exhaust gas purifying apparatus of the present invention which can be used in a truck, a bus, a building machine or the like. Below, "up",
"Bottom", "Top", "Bottom", "Top", "Bottom",
“Up and down”, “up and down direction”, and “horizontal” are “up”, “down”, “up”, “down”, “upper”, “lower”, “up and down” in the drawings of FIG. "," Vertical ",
And “horizontal”.

As shown in FIG. 1, the exhaust gas purifying apparatus of Example 1 includes an exhaust gas purifying tank 1 in which engine oil is stored as an exhaust gas purifying liquid, and an exhaust gas such as a diesel engine in the engine oil. An exhaust gas introduction pipe 2 for introducing the exhaust gas, and an exhaust gas which is an example of an exhaust gas derivation flow path in the exhaust gas purification apparatus of the present invention in which exhaust gas passing through the engine oil is led out from the exhaust gas purification tank 1 to the outside world. And a gas cleaner 3.

In the exhaust gas purifying apparatus of Example 1, the exhaust gas purifying tank 1 has a vertically long rectangular parallelepiped shape, and includes a bottom plate 1d forming a bottom and a ceiling plate 1e forming a ceiling. Note that the exhaust gas purification tank 1 may have a shape such as a cylindrical shape.

As shown in FIG. 1, the exhaust gas purification tank 1
Is provided in parallel with a bottom plate 1d formed of a punched metal plate having a large number of circular holes having a diameter of about 3 mm and opened on the entire surface.
A middle plate 1c is provided in parallel with the splash return plate 1b. Therefore, the inside of the exhaust gas purifying tank 1 is divided into three sections, upper, middle, and lower, by the splash return plate 1b and the middle plate 1c.

Inside the exhaust gas purifying tank 1, the lowermost section of the three sections, the inside of the exhaust gas storage section 1a, which is a section sandwiched between the splash return plate 1b and the bottom plate 1d. The exhaust gas purifying liquid such as engine oil is stored.

The exhaust gas introduction pipe 2 is, as shown in FIG.
The bottom surface 1d penetrates the vicinity of the bottom surface 1d on the side wall of the purified liquid storage portion 1a, and is inside the purified liquid storage portion 1a.
d. A large number of exhaust gas introduction holes 2a for introducing exhaust gas into the exhaust gas purified liquid stored inside the purified liquid storage portion 1a are provided throughout the entire portion inside the purified liquid storage portion 1a of the exhaust gas introduction pipe 2. Have been.

As shown in FIG. 1, between the exhaust gas introduction pipe 2 and the bottom plate 1d in the purifying liquid storage portion 1a, the exhaust gas jet from the exhaust gas introduction hole 2a does not directly hit the bottom plate 1d. The lower plate 1f is provided in parallel with the bottom plate 1d. An opening is provided at the center of the lower plate 1f. Between the lower plate 1f and the bottom plate 1d, there is formed a purifying liquid reservoir 1g for storing an exhaust gas purifying liquid contaminated by soot and the like contained in the exhaust gas from the exhaust gas introduction pipe 2.

As shown in FIG. 1, an exhaust gas introduction hole 2a is provided between the lower plate 1f and the exhaust gas introduction pipe 2.
An exhaust gas return plate 1h is provided in parallel with the lower plate 1f to prevent a jet of exhaust gas from coming into contact with the surface of the lower plate 1f. Since a gap of about 10 mm is formed between the outer periphery of the exhaust gas return plate 1h and the inner wall surface of the purified liquid container 1a,
The exhaust gas return plate 1h and the lower plate 1f form a flow path of the exhaust gas purified liquid from the purified liquid storage section 1a to the purified liquid reservoir 1g. On the bottom plate 1d,
A drain valve (not shown) for discharging the exhaust gas purifying liquid or the like accumulated in 1 g of the purifying liquid pool is provided.

The exhaust gas purifying liquid contained in the exhaust gas purifying tank 1 is a liquid which is substantially non-volatile at room temperature and has an affinity for hydrocarbons. here,
Examples of the liquid that is substantially non-volatile at room temperature include liquids having a vapor pressure at room temperature (25 ° C.) of about 10 mmHg or less, preferably 5 mmHg or less, and particularly preferably 1 mmHg or less.

Examples of the exhaust gas purifying liquid include one or more organic liquids selected from the group consisting of lubricating oils, non-volatile petroleum liquids, and animal and vegetable oils.

Examples of the lubricating oils include various oils including gear oil, machine oil, turbine oil, bearing oil, hydraulic oil, machine tool oil, vacuum pump oil, compressor oil and the like, in addition to the engine oil. Lubricating oils. As the various lubricating oils, besides petroleum-based lubricating oils, synthetic lubricating oils such as ester-based synthetic lubricating oils and ether-based synthetic lubricating oils can be used. The viscosity of the lubricating oils is, for example, 37.
It is preferably 5 to 2,000 cSt at 8 ° C (100 ° F), particularly 10 to 1,500 at the aforementioned temperature.
It is preferably cSt.

Examples of the non-volatile petroleum liquids include petroleum liquids having little volatility at room temperature, such as light oil, heavy oil, and liquid paraffin. As for the viscosity of the non-volatile petroleum-based liquid, for example, the kinematic viscosity at 37.8 ° C. (100 ° F.) is preferably 1 to 1,000 cSt,
Particularly, it is preferably 1 to 500 cSt.

Examples of animal and vegetable oils include vegetable oils such as rapeseed oil, soybean oil, cottonseed oil, sunflower oil, rice bran oil, peanut oil, and castor oil, and animal oils such as lard, head, whale oil, fish oil, and hydrogenated fish oil. Is mentioned. Other examples of the animal and vegetable oils include waste cooking oils discharged from restaurants and food factories.

As the exhaust gas purifying liquid, lubricating oils and non-volatile oils can be used because they are particularly familiar with hydrocarbons such as soot in exhaust gas, are inexpensive, and can be reused as fuel after deterioration. Preferred are petroleum-based liquids and the like.

As the exhaust gas purifying liquid, at least one liquid selected from the group consisting of the above-mentioned lubricating oils, non-volatile petroleum liquids, and animal and vegetable oils is used.
A mixed solution in which amines such as aliphatic amines and aromatic amines having about 6 to 12 carbon atoms are dissolved. It is believed that the mixture can remove nitrogen oxides and sulfur oxides in addition to hydrocarbons such as soot.

As shown in FIG. 1, a flowing sphere filter 4 is provided above the splash return plate 1b inside the exhaust gas purifying tank 1.

As shown in FIG. 1, the flowing sphere filter 4 includes a substantially rectangular parallelepiped porous container 4a and a porous container 4a.
And a group of steel balls 4b housed in a flowable manner. In other words, the steel ball 4b is freely movably accommodated inside the porous container 4a.

The splash return plate 1b in the perforated container 4a
A large number of exhaust gas inflow holes 4d are formed on the entire surface of the bottom surface 4c which is the surface facing the side. The diameter of the exhaust gas inflow hole is preferably, for example, in the range of about 2 to 5 mm.

At the center of the ceiling plate 4h, which is a surface facing the bottom surface 4c, in the porous container 4a,
Projection 4i having a rectangular cross-sectional shape and having an open upper end
Project toward the lower surface of the middle plate 1c. The multi-hole container 4a is fixed to the lower surface of the middle plate 1c at the upper end of the protrusion 4i by four mountain bolts 4j penetrating the multi-hole container 4a. The middle plate 1c
Is provided with a rectangular opening Op that communicates the upper end opening of the protruding portion 4i and the space above the middle plate 1c. The opening Op is covered from above by a rectangular plate-shaped opening cover 4m that has a large number of exhaust gas outflow holes 4k through which exhaust gas flows out and that is open on the entire surface.

FIG. 2 shows a cross section of the flowing sphere filter 4 cut along a horizontal plane.

As shown in FIGS. 1 and 2, the porous container 4a
Each of the four side surfaces is formed with a sliding wall housing chamber 4f protruding outward. In the slide wall storage chamber 4f, a slide wall 4e forming an inner side wall surface of the porous container 4a is slidably received in a direction toward the center of the porous container 4a and in a direction away from the center. . Between the slide wall 4e and the slide wall guide chamber 4f, a coil spring 4g, which is an urging means for urging the slide wall 4e in a direction toward the center of the porous container 4a, is housed.

As shown in FIGS. 1 and 2, a bottom surface 4c, a slide wall 4e, and a ceiling plate 4 in the porous container 4a are provided.
A group of steel balls 4b is accommodated in a space surrounded by h.
The steel ball 4b has a diameter larger than any of the exhaust gas inflow holes 4d and the exhaust gas outflow holes 4k.

Examples of the steel ball 4b include a ball of a ball bearing and a pachinko ball.

As a group of spheres housed in the porous container 4a, metal spheres other than steel balls can be used as long as the spheres have a high sphericity and each sphere has a certain weight or more. Examples of the metal sphere include a stainless steel sphere, a gunmetal sphere, a bronze sphere, an aluminum bronze sphere, a phosphor bronze sphere, a beryllium copper sphere, and a white copper sphere.

As the group of spheres, there may be mentioned a sphere coated with a soft material in which the surface of the metal sphere is coated with a soft material such as rubber, a thermoplastic elastomer, and a soft resin such as a soft vinyl chloride resin, and a ceramic sphere. Are also mentioned.

As described above, the slide wall 4e slides in the slide wall guide chamber 4f in the direction toward the center of the porous container 4a and in the direction away from the center.
When front, rear, left and right forces from a truck or a bus equipped with the exhaust gas purifying device of Example 1 are applied to the steel balls 4b, the steel balls 4b move along the direction of the force to move the inside of the porous container 4a. Moving. The slide wall 4e includes a coil spring 4
g, the sliding wall 4e pushed by the steel ball 4b in a direction away from the center of the porous container 4a is urged toward the center of the porous container 4a by the steel balls 4b. It moves toward the center of the porous container 4a. Therefore, the steel ball 4b that has moved away from the center of the porous container 4a is pushed back to the original position. As described above, in a state where the truck or the bus is running, the steel balls 4b move as a group in the perforated container 4a by the vibration of the truck or the bus, in other words, flow, and in other words, move. Idle.

As shown in FIG. 1, a truncated pyramid-shaped first droplet hood 5 is provided on the upper surface of the middle plate 1c so as to cover the opening Op. The first splash prevention hood 5
Is covered from above by a second droplet prevention hood 6 formed in a truncated pyramid shape, which is substantially similar to the first droplet prevention hood 5.

A first exhaust gas outlet 5a is provided near the top of the slope of the first splash prevention hood 5. Around the first exhaust gas outlet 5a on the inner wall surface of the first splash prevention hood 5, a rib-like splash return rib 5b is provided toward the inside of the first splash prevention hood 5. Further, a punch metal plate 5c having small holes formed on the entire surface is fitted to the first exhaust gas outlet 5a.

A second exhaust gas outlet 6a is provided near the bottom of the slope of the second splash prevention hood 6. A second exhaust gas outlet 6a in the second splash hood 6
Around the inside of the second splash-proof hood, similarly to the first splash-proof hood 5.
Are formed. Further, similarly to the first exhaust gas outlet 5a, a punch metal plate 6c is fitted to the second exhaust gas outlet 6a.

As shown by the arrow in FIG.
When the exhaust gas flowing into the splash hood 5 flows out of the first exhaust gas outlet 5a, it flows downward along the inner wall surface of the second splash hood 6, and the second exhaust gas outlet 6a
From the outside. As described above, the first and second splash prevention hoods 5 and 6 have a function of bending the flow of the exhaust gas flowing out of the fluidized sphere filter 4.

The fluid sphere filter 4, the first spill-prevention hood 5, and the second spill-prevention hood 6 are used as the purifying liquid discharge preventing means in the exhaust gas purifying apparatus of the present invention, in which the purifying liquid discharging means is provided. Equivalent to. The first splash prevention hood 5 and the second splash prevention hood 6 correspond to the exhaust gas flow bending means in the exhaust gas purification apparatus of the present invention, which has the exhaust gas flow bending means as the purified liquid discharge prevention means.

As shown in FIG. 1, the outer wall surface of the first splash hood 5 and the second splash hood 6
A purification liquid draining hole 7 for draining the exhaust gas purification liquid accumulated on the upper surface of the middle plate 1c is opened in a portion between the inner plate 1c and the outer wall surface of the second splash prevention hood 6. The middle plate 1
In the portion where the purifying liquid draining hole 7 is opened on the lower surface of c,
A funnel-type purifying liquid port 8 is provided for collecting the exhaust gas purifying liquid extracted from the purifying liquid discharging hole 7. In the part corresponding to the funnel leg in the purifying liquid port 8,
A purification liquid return pipe 9 for returning the exhaust gas purification liquid accumulated in the purification liquid port 8 between the middle plate 1c and the splash return plate 1b in the exhaust gas purification tank 1 is provided. As shown in FIG. 1, the purified liquid return pipe 9 has a loop-shaped tip.

As shown in FIG. 1, near the ceiling plate 1e of the exhaust gas purifying tank 1, an upper plate 10 for holding the second splash hood 6 is provided on the top surface of the second splash hood 6. It is provided in parallel with the ceiling plate 1e. On the lower surface of the upper plate 10,
Fluid sphere filters 11 and 12 having the same structure as the fluid sphere filter 4 are provided so as to sandwich the second splash prevention hood 6.

As shown in FIG. 1, a cylindrical exhaust gas cleaner 3 extending in the horizontal direction is provided above the ceiling plate 1e. An exhaust gas duct 13 that guides exhaust gas discharged from the exhaust gas purification tank 1 to the exhaust gas cleaner 3 is provided between the exhaust gas cleaner 3 and the exhaust gas purification tank 1.

A cylindrical filter element 3 a is provided inside the exhaust gas cleaner 3 along the axis of the exhaust gas cleaner 3. As the filter element 3a, for example, a filter element used for a normal automobile air cleaner can be used. An exhaust pipe 3b for introducing exhaust gas to the outside is inserted into a hollow portion of the filter element 3a. The filter element 3a on the side of the exhaust pipe 3b
A large number of pores are provided in a portion to be inserted into the hollow portion.

The operation of the exhaust gas purifying apparatus of Example 1 will be described below. The arrows in FIG. 1 indicate the flow of exhaust gas in the exhaust gas purifying apparatus of Example 1.

Exhaust gas discharged from diesel engines such as trucks and buses and passing through a muffler passes through an exhaust gas introduction pipe 2 and is introduced into the purified liquid storage section 1a from an exhaust gas introduction hole 2a.

From the exhaust gas, hydrocarbons such as soot and unburned fuel are mainly removed by an exhaust gas purifying liquid stored in the purifying liquid container 1a, for example, engine oil.

The exhaust gas flowing through the exhaust gas purifying liquid in the purifying liquid container 1a flows into the fluidized spherical filter 4 through small holes provided in the splash return plate 1b. Since the exhaust pressure of a diesel engine is usually about 5 to 6 atm, the engine oil in the purifying liquid storage section 1a not only scatters in the form of mist due to the pressure of the exhaust gas introduced from the exhaust gas introduction pipe 2, but also Splatters in drops.
Therefore, not only the exhaust gas passing through the engine oil but also the mist-like and drop-like engine oil is discharged from the purifying liquid storage section 1a. A large part of the drop-shaped engine oil discharged along with the exhaust gas hits the splash plate 1b and is returned to the purified liquid storage portion 1a, and a part of the engine oil is discharged along with the exhaust gas. Enter 4

In the fluidized spherical filter 4, the exhaust gas flows between the steel balls 4b. On the other hand, most of the mist-like and droplet-like engine oil that has entered the fluidized-sphere filter 4 accompanying the exhaust gas adheres to the surface of the steel ball 4b and becomes an oil droplet toward the splash return plate 1b. It falls and returns to the inside of the purified liquid storage part 1a.

As described above, since the steel balls 4b are flowing in the porous container 4a, the steel balls 4b do not adhere to each other due to the engine oil attached to the surface to form one lump. Further, the surface of the high grade 4b is always washed by the engine oil attached to the surface of the steel ball 4b. Therefore, since soot does not accumulate on the surface of the steel ball 4b, the flowing sphere filter 4 does not become noticeable due to soot and the like in the exhaust gas.

The exhaust gas flowing out of the fluid sphere filter 4 flows into the inside of the first splash protection hood 5 as shown by the arrow in FIG. It flows out into the space between the hood 5 and the second splash prevention hood 6. A portion of the engine oil that has flowed out along with the exhaust gas and has not been removed by the fluidizing sphere filter 4 is blocked by the splash return rib 5b provided around the first exhaust gas outlet 5a, and It flows down along the inner wall surface of the splash prevention hood 5.

The exhaust gas flowing out of the section from the first exhaust gas outlet 5a flows downward along the inner wall surface of the second splash prevention hood 6, and the second exhaust gas outlet 6a passes through the second exhaust gas outlet 6a.
It flows out of the splash hood 6. However, mist-like engine oil and soot remaining in the exhaust gas,
From the first exhaust gas outlet 5a, it goes straight toward the inner wall surface of the second splash hood 6 and adheres to the inner wall surface of the second splash hood 6. In this way, at least a part of the engine oil and the soot in the exhaust gas is removed from the exhaust gas.

The mist-like engine oil and soot still remaining in the exhaust gas flowing along the inner wall surface of the second splash hood 6 are formed at least partially around the second exhaust gas outlet 6a. The splashed back rib 6b is stopped.

The exhaust gas flowing out of the second splash hood 6 passes through the fluid sphere filters 11 and 12 attached to the upper plate 10 and the filter element 3a, and is discharged to the outside from the exhaust pipe 3b. .

According to the exhaust gas purifying apparatus of Example 1, harmful components such as soot and hydrocarbons discharged from diesel engines such as trucks, buses, and construction machines are extremely effectively removed.

Furthermore, when the diesel engine is operated with the exhaust gas purifying apparatus of Example 1 connected to the exhaust pipe of the diesel engine, the exhaust noise from the diesel engine is almost inaudible, and the mechanical noise such as the gear meshing noise is heard. Since only the sound can be heard, the operating noise of the diesel engine is extremely low.

In addition, since the engine oil is usually flammable, when the engine oil is used as the exhaust gas purifying liquid in the exhaust gas purifying apparatus of Example 1, the engine oil is reduced by harmful components in the exhaust gas. After saturation, it can be used effectively as fuel. Therefore, there is no problem that industrial waste is generated.

Further, the exhaust gas purifying apparatus of Example 1 includes a stationary diesel engine such as a diesel engine for power generation, a large diesel engine such as a marine diesel engine,
It can also be used for gasoline engines of passenger cars and the like.

(2) Example 2 The exhaust gas purifying apparatus of Example 2 comprises a first exhaust gas purifying tank and a second exhaust gas purifying tank.
1 is an example of an exhaust gas purifying apparatus including an exhaust gas purifying tank.

FIG. 3 shows the internal structure of the exhaust gas purifying apparatus of Example 2.
Shown in In FIG. 3, the same reference numerals as those in FIGS.
Unless otherwise specified, the same components as those indicated by the reference numerals in FIGS. 1 and 2 are shown.

As shown in FIG. 3, also in the exhaust gas purifying apparatus of Example 2, the inside of the first exhaust gas purifying tank 1 has the same structure as the exhaust gas purifying tank in the exhaust gas purifying apparatus of Example 1, and the splash return plate 1b. With the middle plate 1c, it is divided into three vertically. Of the three sections inside the exhaust gas purification tank 1, the lowest section is the purified liquid storage section 1a.
It is.

On the lower surface of the intermediate plate 1c, a fluidized sphere filter 4 having the same structure as the fluidized sphere filter 4 in the exhaust gas purifying apparatus of Example 1 is provided.

However, as shown in FIG. 3, in the exhaust gas purifying apparatus of Example 2, unlike the exhaust gas purifying apparatus of Example 1, exhaust gas from the opening Op is introduced into the upper surface of the middle plate 1c. A frustum-shaped exhaust gas hood 14 is provided.

Medium plate 1c inside exhaust gas purifying tank 1
Further, a second exhaust gas purifying tank 15 and a second exhaust gas purifying tank 16 are provided on the upper surface of the device with the exhaust gas hood 14 interposed therebetween. The second exhaust gas purifying tank 15 and the second exhaust gas purifying tank 16 contain water which is an example of the nitrogen oxide removing liquid in the present invention. The nitrogen oxide removing liquid in the present invention is mainly a liquid that removes harmful components having polarity such as nitrogen oxides and sulfur oxides in the exhaust gas from the exhaust gas. And a liquid having an affinity for sulfur oxides. Examples of the liquid include water, an aqueous alkaline solution, and an organic base.

Examples of the alkaline aqueous solution include a sodium hydroxide aqueous solution, a potassium hydroxide aqueous solution, a lithium hydroxide aqueous solution, a lime water, an overlay water, and a sodium carbonate aqueous solution.

Examples of the organic base include dipropylamine, diisopropylamine, dibutylamine, tributylamine, pentylamine, dipentylamine, tripentylamine, hexylamine, dihexylamine, trihexylamine, heptylamine, octylamine and dioctyl. Aliphatic amines having about 5 to 25 carbon atoms, such as amines, nonylamines, dinonylamines, decylamines, and cyclohexylamines; anilines, N-methylanilines, N, N-dimethylanilines, N, N-diethylanilines, and toluidines; Heterocyclic organic base compounds such as aromatic amines having about 6 to 12 carbon atoms, pyridine, picoline, quinoline, isoquinoline, and pyrimidine;
And alkanolamines such as ethanolamine.

Among the nitrogen oxide removing liquids, water is most preferable because it is inexpensive and safe.

An exhaust gas introduction pipe 17 for introducing exhaust gas from the exhaust gas hood 14 into the second exhaust gas purifying tank 15 and an exhaust gas from the exhaust gas hood 14 are provided near the upper end of the exhaust gas hood 14. Is connected to one end of an exhaust gas introduction pipe 18 for introducing the gas into the second exhaust gas purification tank 16. The other ends of the exhaust gas introduction pipes 17 and 18 are respectively connected to the bottom surface, that is, the middle plate 1 on the side wall 15 a of the second exhaust gas purification tank 15 and the side wall of the second exhaust gas purification tank 16.
c near the upper surface of the second exhaust gas purifying tank 15.
And 16 extend along the upper surface of the intermediate plate 1c. The exhaust gas introduction pipe 17 and the exhaust gas introduction pipe 18 have an exhaust gas introduction hole 17a for introducing exhaust gas from the exhaust gas hood 14 into water contained in the second exhaust gas purifying tanks 15 and 16, and an exhaust gas. Inlet hole 18
a are provided in large numbers along the longitudinal direction.

As shown in FIG. 3, the lower surface of the upper plate 10 forms the ceiling surface of the second exhaust gas purifying tanks 15 and 16.

A flowing sphere filter 11 and a flowing sphere filter 12 are provided on the ceiling surfaces of the second exhaust gas purifying tanks 15 and 16.

The fluid sphere filter 11 and the fluid sphere filter 12 are different from the steel ball 4b in that a shot metal ball is accommodated therein, and as shown in FIG.
The flow sphere filter 4 is different from the flow sphere filter 4 except that a sheet-shaped metal shell filter 11a and a metal shell filter 12a obtained by processing thin metal wires into a felt shape are provided in the vicinity of the opening 11b and the opening 12b in the fluid sphere filter 12, respectively. It has almost the same structure as. The gunmetal filter 11a and the gunmetal filter 12a can also be referred to as a gold bundle filter. The metal spheres used in the fluid sphere filter 11 and the fluid sphere filter 12 are high corrosion resistant alloys such as aluminum bronze spheres, phosphor bronze spheres, beryllium copper spheres, white copper spheres, and stainless steel spheres in place of the shot metal spheres. Spheres are also preferably used.

In the exhaust gas purifying apparatus of Example 2, the exhaust gas from a diesel engine or a gasoline engine
Similarly to the exhaust gas purifying apparatus of Example 1, the exhaust gas is introduced from the exhaust gas introducing pipe 2 into the purified liquid storage section 1a. Purified liquid container 1
In a, hydrocarbons such as soot and unburned fuel in the exhaust gas are mainly removed.

The exhaust gas led out from the purifying liquid storage section 1a passes through the fluidized spherical filter 4 and is introduced into the exhaust gas hood 14, and the second exhaust gas purifying tanks 15 and 16 pass through the exhaust gas introducing pipes 17 and 18. Will be introduced. In the second exhaust gas purifying tanks 15 and 16, mainly nitrogen oxides, sulfur oxides, and carbon monoxide in the exhaust gas are removed.

The exhaust gas purifying apparatus of Example 2 has, in addition to the features of the exhaust gas purifying apparatus of Example 1, a feature that nitrogen oxides and sulfur oxides in exhaust gas can be more effectively removed, and an outer shape. It has the feature of being compact.

(3) Example 3 Example 3 is another example of an exhaust gas purifying tank having a first exhaust gas purifying tank and a second exhaust gas purifying tank. FIG. 4 shows the internal structure of the exhaust gas purifying apparatus of Example 3. 4, the same reference numerals as those in FIG. 1 indicate the same elements as those shown in FIG. 1 unless otherwise specified.

As shown in FIG. 4, the exhaust gas purifying apparatus of Example 3 includes a first exhaust gas purifying tank A containing engine oil, which is an example of an exhaust gas purifying liquid, therein,
A second exhaust gas purification tank B, which is connected in series to the exhaust gas purification tank A and contains water therein, is provided.

As shown in FIG. 4, the first exhaust gas purifying tank A
Is the exhaust gas purifying tank 1 in the exhaust gas purifying apparatus of Example 1.
Similarly to the above, it has a vertically long rectangular parallelepiped shape, and the inside is divided into three by a splash return plate 1b and a middle plate 1c from below. A first exhaust gas introduction pipe 2 for introducing exhaust gas into the purified liquid storage unit 1a is provided near the bottom plate 1d of the purified liquid storage unit 1a located at the lowermost stage.

In the portion of the exhaust gas introduction pipe 2 where the exhaust gas introduction hole 2a is provided, there is provided an inner punch metal cylinder 2b which is a cylindrical member formed of a punch metal plate having a hole having a diameter of about 3 mm on the entire surface. Is covered. Outside the inner punch metal cylinder 2b, a cylindrical member formed of the same punch metal plate as the inner punch metal cylinder 2b, having an inner diameter larger than the outer diameter of the inner punch metal cylinder 2b. An outer punch metal cylinder 2c is provided substantially concentrically with the inner punch metal cylinder 2b.

A fluidized spherical filter 4 similar to the fluidized spherical filter 4 provided in the exhaust gas purifying apparatus of Example 1 is fixed to the lower surface of the middle plate 1c.

On the upper surface of the middle plate 1c, a dome-shaped splash-prevention hood 19 into which the exhaust gas derived from the fluidized sphere filter 4 is introduced is provided toward the ceiling plate 1e. An exhaust gas outlet hole 19a through which the exhaust gas introduced into the splash prevention hood 19 flows is provided at a peripheral portion of the splash prevention hood 19. Further, the lower end portion of the splash prevention hood 19 is provided with a metal bundle filter container 21a described later.
And 21b are recessed.

As shown in FIG. 4, between the exhaust gas outlet of the fluid sphere filter 4 and the exhaust gas inlet of the splash hood 19, a gold particle filter formed in a felt shape is provided. 20 is provided so as to be movable intermittently. Further, at the position sandwiching the splash prevention hood 19 and the fluid sphere filter 4, drum-shaped metal sliver filter containers 21a and 21b for accommodating the metal sliver filter 20 in a rolled state are arranged. . In the metal sliver filter container 21a, an unused metal sliver filter 20 is accommodated, and in the metal sliver filter container 21b, the fluid sphere filter 4 unwound from the metal sliver filter container 21a is used. A used metal sliver filter 20 that is contaminated with soot and the like in the exhaust gas flowing toward the splash prevention hood 19 is stored.

The metal sliver filter containers 21a and 21b
FIG. 5 shows the details of the metal bundle 20. As shown in FIG. 5, each of the metal sliver filter containers 21a and 21b has a winding shaft disposed on the axis of the metal sliver filter 21a and 21b where the metal sliver filter 20 is wound. 21c. A rectangular extraction sheet 21d having a function of extracting the metal bundle filter 20 is fixed to the winding shaft 21c. In addition, as the drawing sheet 21d, a sheet or the like obtained by cutting the metal bundle filter 20 into one size can be used.

One end of the sliver filter 20 housed in the sliver filter container 21a is
d is attached to a side opposite to the side fixed to the winding shaft 21c via a pair of detachable hooks 21e which are detachably formed with each other.

As shown in FIG. 4, the first exhaust gas purifying tank A
Is connected to the second exhaust gas introduction pipe 22 in the second exhaust gas purification tank B.

The second exhaust gas purifying tank B has almost the same structure as the first exhaust gas purifying tank A, as shown in FIG. However, the water storage unit 1w where water is stored at the bottom
Are formed, the sphere formed of a corrosion-resistant material such as a shot metal ball is accommodated in the fluidized sphere filter 4 in place of the steel ball ', and the metal sliver filter 20 is formed of a gun metal. , Different from the first exhaust gas purification tank A.

An exhaust gas cleaner 3 similar to the exhaust gas cleaner of the exhaust gas purifying apparatus of Example 1 is connected to the exhaust gas outlet of the second exhaust gas purifying tank B.

Further, in the second exhaust gas purifying tank B, a replenishing water tank 23 in which water to be replenished in the water storing part 1w is stored, and a water replenishing pipe for supplying water from the replenishing water tank 23 to the water storing part 1w. Road 24 is connected.

As shown in FIG. 4, the exhaust gas purifying apparatus of Example 3 has an oil tank a in a first exhaust gas purifying tank A.
A cooling device 25 is provided for cooling the internal engine oil and the water in the water storage section 1w in the second exhaust gas purification tank B. The cooling device 25 includes a refrigerant pipe 25a through which the refrigerant flows inside the purified liquid storage unit 1a and the water storage unit 1w, and a compression pump that compresses the refrigerant flowing through the refrigerant pipe 25a. 25b.
As shown in FIG. 5, the refrigerant pipe 25a is formed in a serpentine shape in the purified liquid storage part 1a and the water storage part 1w.

In the first exhaust gas purifying tank and the second exhaust gas purifying tank, a filter made of glass fiber and a natural fiber such as hemp, cotton, silk, and wool were used instead of the gold sliver filter 20. A filter, a filter in which sand, limestone powder, activated carbon, straw, sawdust, or the sea surface or the like is supported on air-permeable paper or the like can be used.

The operation of the exhaust gas purifying apparatus of Example 3 will be described below.

In the exhaust gas purifying apparatus of Example 3, the exhaust gas from a diesel engine or a gasoline engine is
As in the exhaust gas purifying apparatuses of Examples 1 and 2, the gas is introduced into the purified liquid storage section 1a through the first exhaust gas introducing pipe 2. Since the discharge pressure of the exhaust gas discharged from the exhaust gas introduction hole 2a into the purified liquid storage unit 1a is weakened by the inner punch metal cylinder 2b and the outer punch metal cylinder 2c, the exhaust gas inside the purified liquid storage unit 1a is reduced. The engine oil is less likely to scatter in the form of a mist due to the discharge pressure of the exhaust gas.

In the purifying liquid storage section 1a, mainly
Hydrocarbons such as smoke in the exhaust gas are removed.

The exhaust gas led out from the purifying liquid storage section 1a passes through the fluidized sphere filter 4, passes through the metal sliver filter 20, and is introduced into the splash prevention hood 19.

At least a part of engine oil droplets and soot in the exhaust gas is removed by the metal bundle filter 20. The splashes and soot of the engine oil not removed by the sliver filter 20 travel straight inside the splash hood 19 and adhere to the top of the inner wall of the splash hood 19 and its vicinity. On the other hand, the exhaust gas flows along the inner wall of the splash-prevention hood 19 toward the periphery of the splash-prevention hood 19, and flows out of the splash-prevention hood 19 from an exhaust gas outlet 19a.

The exhaust gas flowing out of the splash prevention hood 19 passes through the connecting pipe 22 to the second exhaust gas purifying tank B.
Will be introduced.

In the water storage section 1w, mainly nitrogen oxides,
The waste gas from which sulfur oxides and carbon monoxide have been removed
Passing through the flowing sphere filter 4 and the splash hood 19,
It is discharged to the outside through the exhaust gas cleaner 3.

In the exhaust gas purifying apparatus of Example 3, the drawing and winding of the metal sliver filter 20 in the metal sliver filter containers 21a and 21b can be performed in the following procedure.

One of the detachable hooks 21e fixed to the end of the draw-out sheet 21d inside the metal bundle filter container 21b is engaged with the other of the detachable hooks 21e of the metal bundle filter 20, and the drawer sheet 21d and the metal bundle filter 20 are connected. Concatenate. In this state, the winding shaft 21c of the metal bundle filter container 21b is rotated to pull out the metal bundle filter 20. When the metal sliver filter 20 is contaminated, the winding shaft 21c is further rotated, and the metal sliver filter 20 is wound into the metal sliver filter container 21b by a length corresponding to one time. The part that does not exist is replaced with the fluid sphere filter 4 and
9 between. When the metal sliver filter 20 is completely wound inside the metal sliver filter container 21b, the detachable hook 21e is removed to disconnect the metal sliver filter 20 from the drawer sheet 21d. Remove from gas purifier.

The pulling out and winding of the metal sliver filter 20 can be automatically performed by using a timer and a motor.

[0098] In the exhaust gas purifying apparatus of Example 3, even when the discharge pressure of the exhaust gas is high, the engine oil and water contained therein are less likely to be scattered in the form of mist due to the discharge pressure of the exhaust gas. Therefore, the exhaust gas purifying apparatus of Example 3 can be preferably used particularly for large diesel vehicles such as large trucks and buses equipped with a large displacement diesel engine, and large construction machines.

[0099]

EXAMPLE The results of a purification test of exhaust gas from diesel vehicles and gasoline vehicles using the exhaust gas purifying apparatus of Example 2 are shown below.

Engine oil type: 10W-30 multi-grade oil Engine oil amount: 80 liters Water amount: 22 liters

A. Diesel vehicles Nissan Atlas (displacement 3300cc, engine type ED3) manufactured by Nissan Motor Co., Ltd.
3) and Isuzu Elf (displacement 3600 cc, engine type 4BE1) manufactured by Isuzu Motor Corp. were used.

The exhaust gas of a diesel vehicle is exhaust gas that does not pass through the exhaust gas purification device, in other words, exhaust gas before purification, and exhaust gas that has passed through the exhaust gas purification device, in other words, exhaust gas after purification. Black smoke,
The concentrations of nitrogen oxides and sulfur oxides were measured.

The black smoke concentration was measured using a black smoke measuring device (model: DSM-10, Ministry of Transport No .: DS-2) manufactured by Banzai Co., Ltd., and the reading (%) of the black smoke measuring device was used. expressed.

The engine of the diesel vehicle is about 500 rp.
m, and the engine was blown from the above state to increase the number of revolutions to about 1500 rpm. In this state, the density of black smoke was measured. The measurement was repeated three times, and the average value was obtained. Table 1 shows the results.

[0105]

[Table 1]

The nitrogen oxide and sulfur oxide concentrations were measured by rotating the diesel engine at 1700 rpm for 1 hour. For exhaust gas before purification,
The total nitrogen concentration and sulfate ion concentration of water collected from the water tank in the exhaust gas purification device were measured. Regarding the exhaust gas after purification, the exhaust gas discharged from the exhaust gas cleaner in the exhaust gas purification device was passed through water for one hour, and the water was measured in the same manner as the exhaust gas before purification. The results are shown in Table 2 below.

[Table 2]

B. Gasoline car Nissan Bluebird (displacement: 1800 cc) manufactured by Nissan Motor Co., Ltd. was used as a gasoline car.

For gasoline-powered vehicles, the concentrations of hydrocarbons and carbon monoxide were measured for the exhaust gas before purification and the exhaust gas after purification.

The hydrocarbons and carbon monoxide in the exhaust gas were supplied to a CO / HC tester (model: AU7CH, manufactured by Yokogawa Electric Corporation) while the engine was rotated at 700 rpm.
It was measured using the Ministry of Transportation inspection number 7MD6653). The results are shown in Table 3 below.

[0110]

[Table 3]

From the results shown in Tables 1 and 2, the exhaust gas purifying apparatus of Example 2 can almost completely remove black smoke (soot) in the exhaust gas of a diesel vehicle,
It can also be seen that sulfur oxides and sulfur oxides can be removed well. Also, from the results shown in Table 3, it can be seen that carbon monoxide and hydrocarbons in the exhaust gas of the gasoline vehicle can be removed well.

[0112]

The exhaust gas purifying apparatus provided by the present invention has a simple structure and does not use any expensive catalyst or the like.
In addition, hydrocarbons such as soot and so on can be effectively removed from exhaust gas of construction machinery and the like.

[0113] Among the exhaust gas purifying apparatuses provided by the present invention, the exhaust gas purifying apparatus having the first exhaust gas purifying tank and the second exhaust gas purifying tank includes not only hydrocarbons in the exhaust gas but also carbon monoxide, Nitrogen oxides, sulfur oxides and the like can also be effectively removed.

Further, since the exhaust gas purifying device can almost completely eliminate the exhaust noise from the diesel engine, it also has the feature that the operating noise of trucks and buses equipped with the diesel engine can be extremely reduced. are doing.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an internal structure of an example of an exhaust gas purifying apparatus of the present invention.

FIG. 2 is a cross-sectional view of the flowing sphere filter of the exhaust gas purification device shown in FIG. 1 cut along a horizontal plane.

FIG. 3 is a cross-sectional view illustrating an internal structure of an example of an exhaust gas purifying apparatus including a first exhaust gas purifying tank and a second exhaust gas purifying tank.

FIG. 4 is a cross-sectional view showing another internal structure of another exhaust gas purifying apparatus including a first exhaust gas purifying tank and a second exhaust gas purifying tank.

FIG. 5 is a cross-sectional view showing details of a metal sliver filter container and a metal sliver provided in the exhaust gas purifying apparatus of Example 4.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Exhaust gas purification tank, 1a ... Purification liquid storage part, 1b ... Spray return plate, 1c ... Middle plate, 1d ... Bottom plate, 1e ... Ceiling plate, 1f
... Lower plate, 1g ... Oil reservoir; 2 ... Exhaust gas inlet pipe, 2a ... Exhaust gas inlet, 3 ... Exhaust gas cleaner, 3a ... Filter element, 3b ... Exhaust pipe 4 ... Flowing spherical filter, 4a ... Porous container, 4b …wrecking ball,
4c: bottom plate, 4d: exhaust gas inflow hole, 4e: slide wall 4e, 4f: slide wall guide chamber, 4g: coil spring,
4h: ceiling plate, 4i: protrusion, 4j: mountain bolt, 4k: exhaust gas outlet hole, 4m: opening cover; 5: first
Splash prevention hood, 5a: first exhaust gas outlet, 5b: splash return rib, 5c: punched metal plate; 6: second splash prevention hood, 6a: second exhaust gas outlet, 6b: splash return rib,
6c: punch metal plate; 7: oil drain hole; 8: oil port; 9: oil return line; 10: upper plate; 11, 12: flowing sphere filter; 13: exhaust gas duct; 16 ...
Water tanks; 17, 18: Exhaust gas introduction pipe; 19: Splash prevention hood; 20: Gold sliver filter, 21a, 21b: Gold sliver filter container, 22: Second exhaust gas introduction pipe, 23 ...
Replenishing water tank, 24: water replenishing line, 25: cooling device.

[Procedure amendment]

[Submission date] May 22, 2000 (2000.5.2)
2)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007]

The present invention provides (1) a lubricating oil.
And an exhaust gas purifying tank containing therein an exhaust gas purifying liquid selected from the group consisting of animal and vegetable oils and an exhaust gas purifying gas introduced into the exhaust gas purifying liquid contained in the exhaust gas purifying tank. An exhaust gas purifying apparatus, comprising: a gas introduction flow path; and an exhaust gas derivation flow path that leads exhaust gas flowing through the exhaust gas purifying liquid to the outside of the exhaust gas purifying tank. (2) Lubricating oils And animal and vegetable oils
A first exhaust gas purifying tank containing therein a selected exhaust gas purifying liquid, and a second exhaust gas purifying tank containing therein a nitrogen oxide removing liquid having an affinity for nitrogen oxides and sulfur oxides.
An exhaust gas purifying tank, a first exhaust gas introduction passage for introducing an exhaust gas to be purified into an exhaust gas purifying liquid contained in the first exhaust gas purifying tank, and an exhaust gas purifying tank derived from the first exhaust gas purifying tank. A second exhaust gas introduction passage for introducing the exhaust gas into the nitrogen oxide removing solution contained in the second exhaust gas purification tank, and a second exhaust gas introduction passage for introducing the exhaust gas introduced into the exhaust gas purification solution to the second exhaust gas purifying tank. An exhaust gas purifying device , comprising: an exhaust gas deriving flow path that is led out of the exhaust gas purifying tank ; (3) the exhaust gas purifying tank in the above (1),
A purifying liquid discharge preventing unit configured to prevent the purifying liquid stored in the purifying tank from being discharged to the outside of the purifying tank along with the exhaust gas flowing through the purifying liquid; (1) The exhaust gas purifying apparatus according to (4), wherein the first exhaust gas purifying tank in the above (2) is characterized in that the exhaust gas purifying liquid contained in the first exhaust gas purifying tank contains (5) The exhaust gas purifying apparatus according to (2), further comprising: a purifying liquid discharge preventing unit configured to prevent the purging liquid from being discharged to the outside of the first exhaust gas purifying tank along with the exhaust gas circulated. In the second exhaust gas purifying tank in 2), the nitrogen oxide removing liquid stored in the second exhaust gas purifying tank accompanies the exhaust gas flowing through the nitrogen oxide removing liquid, and Prevent from being discharged outside (2) The exhaust gas purifying apparatus according to (2), further comprising: a means for preventing discharge of the nitrogen oxide removing liquid.
(6) The purifying liquid discharge prevention means in the above (3) or (4) comprises a porous container formed so that the exhaust gas can flow therethrough, and a group of spheres housed in the porous container so as to flow therethrough. (3) The exhaust gas purifying apparatus according to (3) or (4), further comprising a fluidized sphere filter comprising: (7) the exhaust gas purifying device according to (3) or (4), wherein the exhaust gas purifies the flow of the exhaust gas. The exhaust gas purifying apparatus according to (3) or (4), further comprising a flow bending means , and (8) the exhaust gas purifying apparatus.
The means for preventing nitrogen oxide removal liquid discharge according to (5) is an exhaust
A porous container formed so that gas can flow therethrough, and
A group of spheres housed in a perforated container so that they can flow
(5) The exhaust gas purifying apparatus according to (5), further including at least one of a fluidized sphere filter provided with: and an exhaust gas flow bending means for bending the flow of exhaust gas .

Claims (9)

[Claims] An exhaust gas purifying tank containing therein an exhaust gas purifying liquid which is substantially non-volatile at room temperature and has an affinity for hydrocarbons, and which is contained in the exhaust gas purifying tank. An exhaust gas introduction flow path for introducing the exhaust gas to be purified into the exhaust gas purification liquid, and an exhaust gas derivation flow path for guiding the exhaust gas flowing through the exhaust gas purification liquid to the outside of the exhaust gas purification tank. An exhaust gas purification device comprising: 2. A first exhaust gas purifying tank containing therein an exhaust gas purifying liquid which is substantially non-volatile at room temperature and has an affinity for hydrocarbons, and a nitrogen oxide and a sulfur oxide. A second exhaust gas purifying tank containing therein a nitrogen oxide removing liquid having an affinity for substances, and an exhaust gas to be purified contained in the exhaust gas purifying liquid contained in the first exhaust gas purifying tank. A first exhaust gas introduction passage for introducing a gas, and a second exhaust gas for introducing an exhaust gas derived from the first exhaust gas purification tank into a nitrogen oxide removing liquid contained in the second exhaust gas purification tank. A gas introduction flow path, and the exhaust gas introduced into the exhaust gas purifying liquid is supplied to the second
An exhaust gas purifying device, comprising: an exhaust gas lead-out channel that leads out of an exhaust gas purifying tank. 3. The exhaust gas purifying tank according to claim 1, wherein the exhaust gas purifying liquid stored in the exhaust gas purifying tank accompanies the exhaust gas flowing through the exhaust gas purifying liquid and is provided outside the exhaust gas purifying tank. 2. The exhaust gas purifying apparatus according to claim 1, further comprising a purifying liquid discharge preventing means for preventing the exhaust gas from being discharged into the exhaust gas. 4. The first exhaust gas purifying tank according to claim 2, wherein the exhaust gas purifying liquid contained in the first exhaust gas purifying tank accompanies the exhaust gas flowing through the exhaust gas purifying liquid. (1) Purified liquid discharge preventing means for preventing the exhaust gas from being discharged outside the purifying tank is provided.
An exhaust gas purifying apparatus according to claim 1. 5. The second exhaust gas purifying tank according to claim 2, wherein the nitrogen oxide removing liquid stored in the second exhaust gas purifying tank accompanies the exhaust gas flowing through the nitrogen oxide removing liquid. The exhaust gas purifying apparatus according to claim 2, further comprising a nitrogen oxide removing liquid discharge preventing means for preventing the nitrogen oxide removing liquid from being discharged to the outside of the second exhaust gas purifying tank. 6. The purifying liquid discharge prevention means according to claim 3 or 4, wherein the purifying liquid discharge prevention means includes: a porous container formed so that exhaust gas can flow therethrough; and a group of spheres housed in the porous container so as to flow therethrough. The exhaust gas purification device according to claim 3 or 4, further comprising a fluidized sphere filter provided with: 7. The exhaust gas purifying apparatus according to claim 3, wherein the purified liquid discharge prevention means according to claim 3 or 4 includes an exhaust gas flow bending means for bending the flow of the exhaust gas. 8. The nitrogen oxide removing liquid discharge prevention means according to claim 5, wherein the exhaust gas is formed so as to be able to flow inside the porous container, and the exhaust gas is accommodated in the porous container so as to be able to flow therethrough. The exhaust gas purifying apparatus according to claim 5, further comprising at least one of a fluid sphere filter including a group of spheres and an exhaust gas flow bending means for bending the flow of the exhaust gas. 9. The exhaust gas purifying liquid according to claim 1, wherein the exhaust gas purifying liquid is at least one organic liquid selected from the group consisting of lubricating oils, nonvolatile petroleum liquids, and animal and vegetable oils. An exhaust gas purifying apparatus according to any one of the preceding claims.