KR100635991B1 - Exhaust fumes purifying apparatus for diesel engine - Google Patents

Abstract

The present invention relates to a combustion gas purification apparatus for a diesel engine, and more particularly, the upper part of the upper case 100 is coupled to the discharge pipe, the inside is filled with sediment liquid and the inlet pipe is coupled to the upper case is optional The lower case 200 detachably assembled with the plurality of perforated plates 300 disposed inside the case, the plurality of meshes 400 interposed between the perforated plates and the perforated plates, and the plurality of perforated plates and the nets at predetermined positions. It comprises a fastening means for fixing.

With this configuration, the present invention is very effective in purifying the soot molecules in the combustion gas because the combustion gas generated in the diesel engine is purified by the wet method while passing through the sedimentation liquid, discharged from the diesel engine without additional power There is no waste of energy because the combustion gas is purified and discharged to the atmosphere by only the discharge force of the combustion gas, and as the combustion gas rises, the gas is naturally purified and discharged without clogging, thereby not overloading the diesel engine.

Combustion gas, soot molecule, sediment, perforated plate, mesh

Description

Combustion Gas Purifier for Diesel Engines {EXHAUST FUMES PURIFYING APPARATUS FOR DIESEL ENGINE}

1 is a cross-sectional view showing the configuration of a combustion gas purification apparatus for a diesel engine according to the present invention;

Figure 2 is an exploded perspective view showing only a plurality of perforated plates and net body in the present invention,

Figure 3 is a view showing for explaining the sediment circulation in the present invention.

◎ Explanation of symbols for main part of drawing

10: entry tube 12: bellows tube

20: discharge pipe 100: upper case

102: flange portion 104: injection hole

200: lower case 202: flange portion

204: outlet 300: perforated plate

302: perforated 304: sediment guide wall

310: guide punch plate 320: dispersion punch plate

330: oil discharge prevention plate 400: mesh

500: holding rod 502: fastener

504: locking jaw 506: fixed rod

508: spacer B: bolt

G: gap P: sediment recovery clearance

W: sediment

The present invention relates to a combustion gas purification device for a diesel engine, and more particularly, to a combustion gas purification device for a diesel engine, connected to a combustion gas outlet of a diesel engine to purify soot molecules contained in the combustion gas by a wet method. It is about.

Recently, the problem of air pollution due to the soot molecules in the combustion gas emitted from vehicles, ships, generators, etc., where diesel engines are used, has become a serious social problem. Therefore, governments have set emission standards for soot molecules (pollutants) in combustion gases such as carbon monoxide (CO), hydrocarbons (HC) and nitrogen oxides (NOx) for the regulation of combustion gases. Is gradually increasing.

Of course, in order to solve the air pollution problem caused by the combustion gas, the method of filtering the soot molecules in the combustion gas using a catalyst or a purifier is applied, but the problem of air pollution problem is still insignificant. In particular, since the combustion gas generated in a diesel engine vehicle cannot be solved by a conventional general catalytic purification device, serious air pollution is left or the operation is prohibited.

In order to solve this problem, Korean Utility Model Publication No. 2000-4204 discloses a wet smoke reduction device for a combustion engine.

Accordingly, the wet smoke reduction device is provided with an inlet port through which combustion gas flows into one side wall of the main body with a blockage on the ground, and an outlet port through which the purified combustion gas flows out on the opposite side of the inlet port. It is characterized in that a plurality of compartments are formed by attaching the membrane and the open bottom partitions in a zigzag at predetermined intervals, and all the compartments are filled with a sediment liquid.

However, the conventional wet smoke reduction apparatus has a disadvantage in that an overload is caused when the combustion gas is discharged. In other words, the conventional wet smoke reduction device has a principle that the combustion gas is purged while passing through the respective sediments provided in the plurality of compartments by the force discharged from the internal combustion engine, each compartment has a constant pressure In addition, since the sediment is provided in the lower portion, a large amount of discharge force is required to pass the combustion gas through each compartment and the sediment, and thus there is a problem in that the internal combustion engine, that is, the engine is excessive. Of course, if the engine is applied excessively, fuel consumption increases and engine life is shortened.

In addition, the conventional wet smoke reduction device has a disadvantage that the internal cleaning is inconvenient and difficult because the partition is attached to the main body.

The present invention has been made in order to solve the problems described above, the purpose is to purify the soot molecules in a wet manner while the combustion gas discharged from the diesel engine passes through the sediment by the discharge force, the combustion gas is It is to provide a combustion gas purification device for a diesel engine that does not overload the internal combustion engine when discharged.

Another object of the present invention is to provide a combustion gas purifying apparatus for a diesel engine, which enables assembly / separation to facilitate internal cleaning.

Combustion gas purification apparatus for a diesel engine according to the present invention for achieving the above and other objects is the upper case is opened, the upper portion is coupled to the discharge pipe upper portion; A lower case opened upwardly, the inside of which is filled with a sedimentation liquid, a part of which is coupled with an inlet pipe so that a combustion gas introduced therethrough passes through the sedimentation liquid, and is detachably assembled to the upper case; A plurality of perforated plates disposed at predetermined intervals in a vertical direction in the assembled case; A plurality of meshes interposed between the perforated plate and the perforated plate; And fastening means for fixing the plurality of perforated plates and meshes in a predetermined position, and a precipitate guide wall is formed at an edge of the perforated plate to extend downward, and the outer diameter of the precipitate guide wall is smaller than the inner diameter of the case. The sediment recovery gap is formed between the perforated plate and the case.

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The plurality of perforated plates are formed on either one of the left or the right side of the plurality of perforated plates and a plurality of guide perforated plates are arranged to be guided upwardly zigzag droplets trapping the soot molecules, and is disposed above the guide perforated plate A plurality of perforations smaller than the perforations of the guide perforated plate are formed as a whole, and the perforated plate for dispersing evenly the droplets passing through the guide perforated plate into smaller droplets, and the perforated part disposed on the top of the distributed perforated plate and corresponding to the portion where the discharge pipe is installed This prevents the droplets from being discharged directly into the discharge pipe, and is divided into an oil discharge prevention punching plate which guides only the purified gas to be discharged to the discharge pipe by bursting in the space between the dispersion punch plate and the discharge pipe.

And a predetermined gap is preferably formed between the perforated plate and the upper mesh to help the droplets trapping the soot molecules are dispersed.

The fastening means extends downward from the bottom of the upper plate of the upper case to penetrate through the plurality of perforated plates and nets, and ends of the perforated bars and meshes are fastened to the threaded portions of the support rods, and the plurality of perforated plates and nets are lowered. Fasteners to hold in the direction of the fall, protruding from the upper inner surface of the upper case and the locking jaw to catch the upward flow of the perforated plate, coupled to the perforated plate to hold the net body to be fixed to the corresponding perforated plate It is configured to include a fixed rod.

The object of the present invention described above will become more apparent from the preferred embodiment of the present invention described below with reference to the accompanying drawings.

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

1 is a cross-sectional view showing the configuration of a combustion gas purification apparatus for a diesel engine according to the present invention, Figure 2 is an exploded perspective view showing only a plurality of perforated plates and net body in the present invention, Figure 3 is a view of FIG. It is a figure shown for demonstrating sediment circulation operation in invention.

1 and 2, the combustion gas purification apparatus for a diesel engine according to the present invention has a body divided into an upper case 100 and a lower case 200.

The upper case 100 has a bottom open in a downward direction, and an opening is formed at an upper portion, that is, one side thereof, and a discharge pipe 20 for discharging the purified gas into the atmosphere is coupled.

The lower case 200 has an upper surface open upward, and an appropriate amount of precipitate (W) is filled therein. Of course, it is preferable to use the precipitate liquid W having a certain viscosity because the combustion gas is oil dust.

And part of the lower case 200, that is, one side is formed with an opening is coupled to the inlet pipe 10 for guiding the combustion gas discharged from the diesel engine to the purifying apparatus according to the present invention. At this time, the inlet pipe 10 should be installed so that the incoming combustion gas is introduced directly into the sedimentation liquid to pass through the sedimentation liquid. In particular, the end of the inlet pipe 10 is preferably installed to extend to 2/3 point as shown in the drawing of the lower case. In the lower case 200, a partition 206 is installed between the end of the inlet pipe 10 and the side wall of the lower case so that the combustion gas introduced through the inlet pipe 10 does not collide with the side wall of the lower case. It is preferable to configure to rise while hitting 206. And part of the inlet pipe 10 is preferably configured as a bellows tube 12 to lower the temperature through the heat dissipation action when hot combustion gas is introduced into the sediment.

Next, the lower case 200 is assembled detachably to the lower portion of the upper case 100. That is, a flange portion 102 is formed at the lower end of the upper case 100 along the rim, and a flange portion corresponding to the upper case 100 and the flange portion 102 is formed at the upper end of the lower case 200 along the rim. 202 is formed, and the upper case 100 and the lower case 200 may be fixed by fastening the bolt B in a state in which the flange part is in close contact. In addition, the packing may be interposed between the upper case and the lower case in order to have an excellent sealing force. In the present embodiment, the upper case 100 and the lower case 200 are detachably coupled by fastening the bolts B, but other well-known methods may be applied.

And one side of the upper case 100 is formed with an inlet 104 for injecting the precipitate is formed, the lower side of the lower case 200 is formed with an outlet 204 for discharging the precipitate desirable.

Next, the plurality of perforated plate 300 and the mesh 400 is fixed to the inside of the body is configured so as to maintain a suitable interval by the fastening means.

Here, the perforated plate 300 and the mesh 400 is generated when the combustion gas passes through the settling liquid droplets trapping the soot molecules, which serves to disperse or burst the droplet into smaller droplets, the perforated plate and the perforated plate It has a structure filled with a mesh 400, such as a fine wire mesh in between.

In addition, the plurality of perforated plates 300 includes a plurality of guided perforated plates 310 in which a plurality of perforated plates 302 are formed only at either one of the left side and the right side, and the droplets collecting the rising soot molecules are guided in a zigzag manner. Dispersion perforated plate 320 is formed on the top of the guide perforated plate and formed with a plurality of perforations 302 smaller than the perforated plate 302 of the guide perforated plate as a whole to evenly distribute the droplets passing through the guide perforated plate 310 into smaller droplets; , So that the perforated 302 is not formed in the portion corresponding to the portion of the dispersion perforated plate and the discharge pipe 20 is installed so that the droplets are not discharged directly into the discharge pipe 20, but burst in the space between the dispersion perforated plate and the discharge pipe. Is divided into oil discharge prevention punching plate 330 to guide only the purified gas is discharged to the discharge pipe.

And the periphery guide wall 304 is formed on the edge of each perforated plate 300 to extend in the downward direction, the mesh 400 is in the inner portion of the perforated plate 300 formed by the precipitate guide wall (304) It is disposed to be filled, the outer diameter of the sediment guide wall 304 is formed to be smaller than the inner diameter of the body case is configured to generate a sediment recovery gap (P) to serve as a sediment recovery passage between the perforated plate and the case.

In addition, a predetermined gap G is formed through the spacer 508 to help the droplets trapping the soot molecules are dispersed between the perforated plate 300 and the upper mesh 400. Here, the spacer 508 may be integrally formed with the fixed rod 506 to be described later, or may be separately fixed through the holding rod 500.

Next, the fastening means for fixing the perforated plate 300 and the mesh 400 extends downward from the bottom surface of the upper plate of the upper case 100 to penetrate the plurality of perforated plate 300 and the mesh 400, the end The holding rod 500 is formed with a screw, and the fastener 502 is fastened to the screw portion of the holding rod to hold the plurality of perforated plate 300 and the mesh 400 does not fall downward. At this time, the holding rod 500 may be integrally formed on the bottom surface of the upper case 100 by welding, or may be manufactured separately and firmly fixed to the upper case 100. In order to prevent the perforated plate 300 and the mesh 400 from flowing upward by the pressure of the incoming combustion gas, a locking jaw 504 is protruded and formed on the upper inner surface of the upper case 100 so that the perforated plate 300 is formed. Supporting the top of the, the lower end of each perforated plate 300 is provided with a fixing rod 506 to hold the mesh 400 to be fixed to the mesh 400. Here, the fixing rod 506 is preferably installed to be fixed to the corresponding perforated plate 300, it may be installed to be fixed to the case.

Now, the operation and operational effects of the present invention thus constructed will be described.

First, contaminated combustion gas generated from a diesel engine used in a vehicle, a ship, a generator, or the like is introduced into the lower portion of the purification apparatus according to the present invention through the inlet pipe 10. Then, as shown in FIG. 3, the combustion gas passes through the sedimentation liquid W by the pressure discharged from the engine and rises to the droplet state in which the soot molecules are collected.

Then, the droplets trapped with the soot molecules are first dispersed in small droplets while passing through the plurality of meshes 400 and the guiding plate 310 and zigzag up along the guiding plate 310 (FIG. 3). Arrow A1). Of course, as a plurality of droplets are guided in a zigzag, some droplets are exploded, and soot molecules (pollutants) are mixed in the burst droplets, that is, sediment, circulated to the lower case 200, and only the purified gas continues to rise. . Of course, the secondary purifying action takes place as the purified gas continues to rub against other unbroken droplets and droplets that are continuously pushed from the bottom.

And the continuously rising droplets are evenly dispersed in a smaller droplet while passing through the dispersion punching plate 320, the dispersed droplets finally passed through the oil drainage prevention punching plate 330, the oil drainage prevention punching plate 330 And in the space portion formed on the bottom of the upper case 100 will be in contact with the air bursts. Of course, the soot molecules are mixed with the burst droplets, that is, the precipitate, circulated to the lower case 200 (see arrow A2 of FIG. 3), and only the purified gas is discharged through the discharge pipe 20 (arrow A3 of FIG. 3). Reference).

At this time, the sediment generated by the bursting of the rising drops are recovered to the lower case 200 through the sediment recovery gap (P) provided between the sediment guide wall 304 of the perforated plate 300 and the inside of the case (FIG. 3). In addition, ascending droplets are blocked from moving to the sediment recovery gap P through the sediment guide wall 304, so that no interference with the recovered sediment and the rising droplets is generated. Will not.

And the oil discharge prevention punching plate 330 can be prevented from being discharged directly to the discharge pipe 20 because the perforations 302 are not formed in the portion corresponding to the discharge pipe 20.

As described above, the present invention is contaminated combustion gas discharged from the diesel engine as it passes through the sediment, the particulates are collected in Paul through a plurality of meshes and perforated plates are dispersed many times in small droplets and at the same time the droplets burst Since the soot molecules are mixed or diluted in the liquid, it is possible to purify the combustion gas more cleanly. Therefore, only the purified gas is discharged to the atmosphere, which significantly reduces the air pollution caused by the combustion gas generated from the diesel engine. It becomes possible. This is proven through experiments.

In particular, since the purifier according to the present invention makes good use of the property of rising air, it is possible to purify and discharge the combustion gas only by the normal pressure of the combustion gas discharged from the diesel engine. In other words, when the combustion gas discharged from the diesel engine is not smoothly flowed and blocked, the diesel engine is overloaded, resulting in high fuel consumption and shortening the life of the diesel engine. However, the present invention does not stagnate the combustion gas discharged. As the water flows up, the gas is naturally purified and discharged so that the diesel engine is not overloaded.

In addition, the present invention has an excellent purifying effect because droplets trapped with soot molecules are rubbed or contacted several times by a plurality of meshes and perforated plates.

In addition, the present invention has the advantage that it is easy to control the amount of the precipitate because the precipitate is provided with the inlet and outlet of a portion of the case.

In addition, the present invention has the advantage that the upper case and the lower case and a plurality of perforated plate and the net body can be easily cleaned inside, and can easily exchange contaminated sediment.

In addition, it has been proved through experiments that the combustion gas purifying apparatus according to the present invention also reduces the noise emitted from the diesel engine, and therefore, when mounted on a vehicle, the combustion gas purifier may also perform the role of a silencer that is conventionally mounted on a vehicle. have. In other words, it is very economical and efficient because it serves as a silencer and a combustion gas purifier when mounted on a vehicle.

Meanwhile, in the present embodiment, the case, the perforated plate and the net are shown as rectangular, but may be manufactured to have other shapes such as square, round, oval. In addition, the number and diameter of the perforations will naturally be adjusted according to the overall size of the purifier. In addition, the size of the purification apparatus according to the present invention may be suitably designed according to the displacement of the combustion gas.

As described above, the present invention is very effective in purifying the soot molecules in the combustion gas because the combustion gas generated in the diesel engine is purified by a wet method while passing through the sedimentation liquid, discharged from the diesel engine without additional power There is no waste of energy because the combustion gas is purified and discharged into the atmosphere by only the discharge force of the combustion gas, and as the combustion gas rises, the gas is naturally purified and discharged without clogging, thereby not overloading the diesel engine.

In addition, the present invention is easy to clean the inside because it is detachably assembled, there is an effect that can easily exchange the contaminated precipitate.

While the invention has been shown and described in connection with specific embodiments as described above, it is well known in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the claims. Anyone who owns it can easily find out.

Claims (7)

An upper case opened downward and having an upper portion coupled to the discharge pipe; A lower case opened upwardly, the inside of which is filled with a sedimentation liquid, a part of which is coupled with an inlet pipe so that a combustion gas introduced therethrough passes through the sedimentation liquid, and is detachably assembled to the upper case; A plurality of perforated plates disposed at predetermined intervals in a vertical direction in the assembled upper and lower cases; A plurality of meshes interposed between the perforated plate and the perforated plate; And Fastening means for fixing the plurality of perforated plate and the net body in a predetermined position, The periphery of the perforated plate is formed in the sediment guide wall to extend in the downward direction, the outer diameter of the sediment guide wall is formed smaller than the inner diameter of the case diesel diesel characterized in that it is configured to form a sediment recovery gap between the perforated plate and the case Combustion gas purification device for engines. delete The method of claim 1, The plurality of perforated plates A plurality of guide perforations formed in a plurality of perforations formed on either the left or the right side and arranged so that the droplets trapping the soot molecules are zigzagly guided; A dispersion perforating plate disposed on the guide perforated plate and formed with a plurality of perforations smaller than perforations of the perforated plate as a whole to uniformly disperse the droplets passing through the perforated plate into smaller droplets; The hole is formed in the upper portion of the dispersion perforated plate and corresponding to the portion in which the discharge pipe is installed, so that no perforations are formed, the droplets are not discharged directly to the discharge pipe, but are discharged from the space between the dispersion perforated plate and the discharge pipe to discharge only the purified gas to the discharge pipe. Combustion gas purification device for a diesel engine, characterized in that divided into oil discharge prevention punching plate. The method of claim 1, Combustion gas purification apparatus for a diesel engine, characterized in that a predetermined gap is formed between the perforated plate and the mesh arranged on the upper part of the perforated plate to help the droplets trapping the soot molecules are dispersed. The method of claim 1, The fastening means A support rod extending downward from the bottom of the upper plate of the upper case and penetrating through the plurality of perforated plates and meshes, and having a screw portion at an end thereof; Fasteners that are fastened to the screw portion of the holding rod to hold the plurality of perforated plates and nets do not fall downward, A locking projection protruding from an upper inner surface of the upper case to catch upward flow of the perforated plate; Combustion gas purification device for a diesel engine, characterized in that it comprises a fixing rod for holding the mesh is coupled to the perforated plate so that the mesh is fixed to the corresponding perforated plate. The method of claim 1, Combustion gas purification apparatus for a diesel engine, characterized in that a portion of the combustion gas inlet pipe is composed of a bellows tube. The method of claim 1, A portion of the upper case is formed with a precipitate injection hole, a portion of the lower case is a combustion gas purification device for a diesel engine, characterized in that the formed discharge outlet.

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