WO2020105819A1

WO2020105819A1 - Scrubber apparatus having integrated venturi

Info

Publication number: WO2020105819A1
Application number: PCT/KR2019/004959
Authority: WO
Inventors: 서민수
Original assignee: 서민수
Priority date: 2018-11-21
Filing date: 2019-04-24
Publication date: 2020-05-28
Also published as: KR101955862B1

Abstract

The present invention relates to a scrubber apparatus installed in an engine exhaust line to remove harmful materials and, more specifically, to a scrubber apparatus having an integrated venturi, the scrubber apparatus comprising: a scrubber body having a main channel provided therein such that exhaust gas can move along same, the scrubber body being hollow and configured such that the exhaust gas and cleaning water for cleaning same can be introduced and discharged, respectively; a venturi portion installed on the front surface of the interior of the scrubber body such that a gas inlet installed in the scrubber body and the main channel can communicate with each other, the venturi portion having a venturi channel provided therein such that the exhaust gas can be moved downwards; a structure packing portion installed inside and spaced from the scrubber body, the structure packing portion having multiple pores and guide channels provided such that the exhaust gas can be diffused and distributed; and multiple cleaning water spraying tubes for spraying cleaning water to the lower side of the scrubber body in a multiple manner. Accordingly, the scrubber apparatus has reduced size, weight, and the like, thereby facilitating installation and disassembly operations, and also has excellent dust-collecting efficiency.

Description

Venturi Integral Scrubber Device

The present invention relates to a scrubber device that collects and removes harmful substances contained in exhaust gas of a ship engine. Specifically, a channel-type venturi structure is integrally installed inside the scrubber body, and exhaust gas is also provided. By arranging the structure packing part that can effectively diffuse and disperse, the size and volume of the entire scrubber device can be reduced, as well as the weight, to improve the portability, mountability and space utilization, as well as dust collection efficiency. It relates to a Venturi-integrated scrubber device that can significantly improve.

In general, ships are installed and operated with a main engine that drives a propeller to propel the ship, and a number of power generation engines to supply power to various equipment or equipment mounted on the ship.

However, the exhaust gas emitted from the diesel engine of a ship contains not only a large number of suspended particulates such as dust or fine dust, but also a number of harmful gaseous substances such as nitrogen oxide NOx and sulfur oxide SOx. It has become a cause of environmental pollution.

In order to reduce the emissions of these environmental pollutants, countries around the world regulate their emissions through environmental regulations, and the International Maritime Organization (IMO) also emits harmful substances from ports and the high seas. Because of the tendency to regulate regulations more intensively, the removal of harmful substances contained in the exhaust gas of ship engines has emerged as an important problem in ship operation.

Accordingly, in order to satisfy these environmental regulations, in particular, in the case of a marine engine, as one of the harmful substance dust collecting devices, a selective catalytic reduction (SCR) for removing nitrogen oxides or sulfur oxides is reduced. Scrubber (SOx removal) device, which removes particulate matter A diesel particulate filter (DPF) is installed and operated in the exhaust line of the engine.

Among the above-mentioned dust collecting devices, a scrubber device is a device for removing foreign substances in exhaust gas through contact and agglomeration effects of gas and liquid, as well as gaseous substances such as SOx, which is a sulfur oxide in exhaust gas, as well as dust or fine particles. It is a device that serves to purify the exhaust gas by collecting and removing suspended particles such as dust.

Hereinafter, a conventional scrubber device will be briefly described with reference to FIGS. 1 and 2.

Here, FIG. 1 shows a schematic configuration diagram of a general scrubber module system to which a conventional scrubber is applied, and FIG. 2 shows a configuration diagram of a conventional general scrubber.

As shown in Figure 1, the scrubber module system (Scrubber Module System) for removing harmful substances in the exhaust gas, the scrubber (SCRUBBER), the ship's main engine (MAIN ENGINE), the exhaust gas discharged after scrubbing (scrubbing) and A gas and sea water monitoring system (GAS & SEA WATER MONITORING SYSTEM) for inspecting sea water flowing into or out of a scrubber are connected to each other, thereby forming a single module system.

On the other hand, a conventional scrubber applied to such a module system is configured as an external venturi type (OUTSIDE VENTURI TYPE), and is composed of a scrubber body 100 and a venturi tube 150, as shown in FIG. 2, At this time, the venturi tube 150 is separately mounted on the side of the scrubber body 100.

In addition, inside the scrubber body 100, a dust collecting layer 110 is installed in two stages, and a plurality of spray pipes 120 for spraying moisture into the exhaust gas moving inside the scrubber body 100 are installed. have.

Here, the dust collecting layer 110 is a portion filled with a general packing ball or a polling ring in which a plurality of fine pores through which exhaust gas can pass is present.

Therefore, as shown by the arrow, the exhaust gas of the main engine flowing in from the upper side of the Venturi tube 150 is input to the lower side of the scrubber body 100 via the Venturi tube 150, wherein the exhaust gas As it diffuses and expands due to the Venturi effect, it moves upward from the lower portion of the scrubber body 100.

In this process, the exhaust gas is scrubbed (scrubbing) is made, at this time, the harmful substances contained therein is in contact with the moisture particles, aggregates and falls, and also, in the dust collecting layer 110, harmful substances are collected After being removed, the scrubber body 100 is discharged upward.

Various conventional scrubbers have been proposed in accordance with the characteristics of the exhaust gas, and in

Patent Documents

1 and 2 of the following prior art documents, as in the conventional scrubbers as described above, external venturi tubes, dust collecting layers, spray nozzles, etc. Disclosed is a scrubber having a.

However, the conventional scrubber as described above has the following problems.

First, since the venturi tube capable of diffusing and expanding exhaust gas is separately mounted on the outside of the scrubber body, the size, volume, or weight of the entire scrubber increases, thereby significantly increasing installation cost and time, and also constraining space. Due to the lack of space due to the characteristics of this large ship, there was a problem that many restrictions were placed on securing space for installation.

Second, a part of the washing water sprayed to mix with the exhaust gas flows back to the Venturi tube, so that there is a problem in that the dust collection efficiency is significantly reduced.

Third, due to the structural characteristics of the cylindrical Venturi tube, changes in properties such as temperature, flow rate, and moisture content of the exhaust gas, or particle size distribution, particle size distribution, and property changes such as density, etc., may cause the formation of ben. There is a problem in that the hole of the Tury can be easily blocked, and thus the stability of driving is poor.

Fourth, when the amount of exhaust gas to be processed increases, it is difficult to expand the pipeline of the cylindrical Venturi tube, so the Venturi tube itself must be replaced with a larger capacity, or a separate Venturi tube must be additionally installed. By doing so, there was a problem in that it was not possible to effectively cope with engines of various sizes as well as increase in production cost.

Fifth, the packing ball or the pall-ring applied to the conventional dust collecting layer is a structure in which a small ball or a ring-shaped member in which a number of fine pores are formed is densely filled and filled. There is a problem in that the movement speed is lowered and the processing speed of the scrubber is reduced.

[Advanced technical literature]

[Patent Document]

(Patent Document 1) Korean Patent Publication No. 10-2018-0038420

(Patent Document 2) Korean Registered Patent Publication No. 10-1549560

The present invention has been devised to solve the above problems, and the object of the present invention is to reduce the size, volume, or weight of the entire scrubber device by minimizing the size of the entire scrubber device by integrally installing the channel type venturi in the body. , To make it compact.

Another object of the present invention is to provide not only easy scalability but also easy maintenance by applying a channel-type venturi portion having a narrow width and a long length in the transverse direction.

In addition, the inlet exhaust gas is moved to the lower side of the scrubber body through the venturi channel, and then raised again, so that the movement distance and fluidity of the exhaust gas are increased.

Another object of the present invention is to minimize the flow resistance of the exhaust gas by installing a structured packing unit capable of improving the straightness of the exhaust gas, thereby effectively inducing diffusion and dispersion of the exhaust gas and increasing the processing speed of the exhaust gas. It is to be.

In order to achieve the above object, the present invention provides a main flow path through which exhaust gas can be moved, and a scrubber body having an empty interior inside and out through which the exhaust gas and the washing water cleaning them can be introduced and discharged. The venturi portion is provided on the front side of the inside of the scrubber body so as to communicate the main flow path with the gas inlet installed in the front portion of the main body, but is provided with a multi-layered venturi channel capable of moving the exhaust gas downward. And, at least one structure packing portion is provided spaced apart inside the scrubber body to provide a plurality of pores and guide flow path to diffuse and disperse the exhaust gas, and a plurality of multiple spraying of washing water down the scrubber body It consists of two wash water injection pipes.

Therefore, since the venturi portion is integrally installed inside the scrubber body, it is possible to significantly reduce the size, volume, or weight of the entire scrubber device, thereby making it compact and compact.

For this reason, it is easy to install or dismantle the scrubber, and it is possible to reduce maintenance costs.

On the other hand, the venturi channel is formed so as to form a stacked structure in the upper and lower directions of the scrubber body by installing a plurality of partitions spaced apart in a horizontal state, by installing a curved surface on the partition wall so that the flow path of the exhaust gas changes downward. desirable.

In addition, it is preferable that a guide plate is installed at a lower end of the partition wall to be inclined at a certain angle in the inner direction.

Therefore, the present invention can be appropriately selected and applied to the number or length of the venturi channel corresponding to the amount of exhaust gas flowing in, and also, since the movement distance of the exhaust gas can be increased, the expansion of the venturi portion In addition to improving the performance, it is possible to increase the dust collection efficiency.

On the other hand, the structure packing portion, a plurality of first packing portion is installed on the upper side of the scrubber body, the second packing portion is spaced apart to face the lower end of the venturi portion, and the inner rear wall of the scrubber body facing the venturi portion It may be composed of a third packing that is installed.

In addition, the second packing portion may be provided with a partition wall extending a predetermined distance downward at the lower end of the outermost partition wall of the venturi part, and may be installed between the partition wall and the front wall of the scrubber body.

In addition, the structured packing portion is formed of a plurality of perforated plates in which a plurality of bending grooves are continuously formed by bending a plate material having a plurality of pores in a zigzag manner, and each of the perforated plates bent such that the bending grooves are inclined in the left or right direction. Can be alternately overlapped so that the bending grooves are alternately arranged.

Therefore, not only can the straightness of the exhaust gas be improved, but also the flow resistance of the exhaust gas can be minimized.

On the other hand, the washing water injection pipe is preferably composed of a plurality of main injection pipes installed in the upper portion of the first packing portion to spray the washing water toward the first packing portion and a channel injection pipe installed inside the lower side of the venturi channel. Do.

As described above, the present invention has the following effects.

First, by adopting a scrubber having a Venturi-integrated structure, the scrubber can be reduced in size and weight, thereby improving the portability and mounting of the device, as well as minimizing the limitation of the installation space.

Second, by adopting a multi-layered channel type venturi structure, not only is it easy to expand, but also has an effect of easy maintenance.

Third, by applying the venturi channel of a curved structure, it is possible to improve the moving distance of the inflowing exhaust gas and its fluidity, as well as improve dust collection efficiency of harmful substances and reduce operating costs. .

Fourth, in addition to inducing effective diffusion and dispersion of exhaust gas, there is an effect that can improve the performance of the scrubber by increasing the processing speed of the exhaust gas,

1 is a schematic configuration diagram of a general scrubber module system to which a conventional scrubber is applied.

2 is a block diagram of a conventional general scrubber.

3 is a front view of an embodiment of a Venturi-integrated scrubber device according to the present invention.

4 is an internal perspective view from the front of the venturi-integrated scrubber device of the present invention.

5 is an internal perspective view from the side of the venturi-integrated scrubber device of the present invention.

6 is a partial perspective view of a perforated plate constituting a structure packing part installed in the venturi-integrated scrubber device of the present invention.

7 is an operation explanatory diagram of the venturi-integrated scrubber device of the present invention.

Hereinafter, embodiments of the venturi-integrated scrubber apparatus of the present invention will be described in detail with reference to FIGS. 3 to 5.

Here, FIG. 3 shows a front view of an embodiment of the Venturi-integrated scrubber device according to the present invention, FIG. 4 shows an internal perspective view from the front of the Venturi-integrated scrubber device of the present invention, and FIG. 5 shows the It shows the internal perspective view from the side of the Venturi-integrated scrubber device.

The venturi-integrated scrubber device 1 of the present invention is an internal venturi (INSIDE VENTRI TYPE) integral structure, because the venturi portion 30 is installed inside the scrubber body 10, the main engine of the ship is the scrubber body It is directly connected to (10).

In addition, the scrubber device 1 of the present invention uses sea water as washing water due to the characteristics of the ship, and although not shown, the sea water is a scrubber body through an external pipe connected to the scrubber device 1 (10) It is put inside.

At this time, in the scrubber device 1 of the present invention, the seawater monitoring system (INLET SEA WATER MONITORING SYSTEM) for checking the adequacy of the injected seawater, and the discharge water monitoring system (DISCHARGE WATER) for checking the safety of seawater discharged after scrubbing MONITORING SYSTEM) is connected.

As shown, the scrubber device 1 is composed of a scrubber body 10, a venturi portion 30, a structure packing portion 50, and a washing water spray pipe 70.

The scrubber body 10 serves as a housing that provides a path through which the exhaust gas of the main engine moves, and is configured as a cylindrical structure having a predetermined height with an empty interior.

Therefore, inside the scrubber body 10, a main flow path 19 through which exhaust gas can move upward is formed in a scrubbing process.

Here, the scrubber body 10 is made of a rectangular cylindrical structure, and is preferably manufactured by combining a cylindrical tubular body composed of a rectangular polyhedron in multiple stages.

At this time, each tube body may be coupled to each other through a bolt or welding operation using a flange (17) structure.

Since the scrubber device 1 is a heavy-duty facility that typically outputs several tens of tons, the scrubber body 10 is configured in multiple stages, thereby simplifying installation and disassembly, as well as improving storage and transportability. And also facilitates maintenance work.

On the other hand, the scrubber body 10 is provided with at least one gas inlet 11 through which the exhaust gas flows, and a plurality of gas outlets 12 for discharging the scrubbed exhaust gas to the outside.

Here, the gas inlet 11 is connected to the exhaust line of the main engine of the ship, and is installed at the front of the scrubber body 10, and the gas outlet 12 is installed upward at the upper end of the scrubber body 10.

The gas inlet 11 and the gas outlet 12 are not shown, but the inlet and outlet of the exhaust gas are made through external pipes that are separately connected.

In addition, the gas inlet 11 and the gas outlet 12, as shown in Figure 3, respectively, three and two are installed, but this is shown as an example, the size, number or installation location, etc., It will be able to select and apply appropriately considering the use environment, the type, size, and displacement of the engine to be connected.

On the other hand, an opening 15 is provided in the upper upper portion of the scrubber body 10.

The opening 15 is installed to observe the inside of the scrubber body 10 or for maintenance of the washing water spray pipe 70, and is provided to be opened and closed using a door, and the scrubber body It can be installed in an appropriate position in consideration of the use environment such as the side or back surface of (10).

In addition, a plurality of washing water outlets 13 connected to the discharge water monitoring system are installed at the lower end of the scrubber body 10.

When the washing water and the exhaust gas are mixed in contact with the inside of the scrubber body 10, the moisture particles of the washing water and the particles of harmful substances in the exhaust gas aggregate, and then fall downward, and at this time, the lower surface of the scrubber body 10 Accumulated collected harmful substances and moisture are discharged to the outside through the washing water outlet (13).

Hereinafter, the venturi unit 30 applied to the venturi-integrated scrubber device of the present invention will be described in detail with reference to FIGS. 4 and 5.

The venturi portion 30 is provided with a plurality of relatively narrow venturi channels (venturi channel) 32, thereby increasing the flow rate of the exhaust gas passing through the venturi channel 32, and By inducing diffusion and expansion, it not only increases the contact area between the exhaust gas and the washing water, but also induces uniform mixing to effectively aggregate the water particles of the washing water and particles of harmful substances contained in the exhaust gas.

4, 5, the gas inlet 11 installed in the scrubber body 10 and the main flow passage 19 formed inside the scrubber body 10 can communicate with each other. So, as being installed on the inner front side of the scrubber body 10, and installed at a position corresponding to the gas inlet 11, the exhaust gas passing through the gas inlet 11 is venturi channel 30 of the venturi portion 30 32).

Here, the venturi channel 32, as shown in Figure 4, when viewed from the front, is installed to form a stacked structure in the up and down direction of the scrubber body 10, wherein, at this time, the partition walls are spaced apart Each is divided by (35).

At this time, the partition wall 35 is installed horizontally by fixing the left and right ends on both inner and outer wall surfaces of the scrubber body 10, thereby forming a venturi channel 32 having a narrow width and a long inlet in the horizontal direction. do.

Here, the partition wall 35 is formed of a plate structure having a predetermined thickness, but a curved surface 37 is formed so that the exhaust gas flowing from the gas inlet 11 forms an arc-shaped flow path and is discharged downward.

Accordingly, the venturi channel 32 is provided to form an 'a'-shaped flow path having a curved portion when viewed from the side, as shown in FIG. 5.

On the other hand, the lower end of the partition wall 35 forming the venturi channel 32 is provided with guide plates 38, which are installed to be inclined at a certain angle in the inner direction.

The guide plate 38 is installed along the lower surface of each partition wall 35, so that the exhaust gas passing through each Venturi channel 32 is not concentrated on the wall surface (the partition wall) of the Venturi channel 32, and is directed to the central portion. Also, it serves to change the direction of the exhaust gas so that it can diffuse and discharge.

On the other hand, the channel injection pipes 75 are respectively installed inside the lower portion of the venturi channel 32 forming the outlet of the venturi portion 30.

In addition, at the lower end of the partition wall 35 located on the outermost side of the venturi portion 30, a partition wall 60 extending in a predetermined length to divide the main flow path 19 of the scrubber body 10 in the up and down direction is provided. Is installed.

The partition wall 60 is installed to vertically partition the main flow path 19 of the scrubber body 10, but the lower surface is installed to be spaced a predetermined distance from the bottom surface of the scrubber body 10, so that the exhaust gas can move. The opening 65 is formed.

At this time, the partition wall 35 and the partition wall 60 of the venturi portion 30 may be fixed inside the scrubber body 10 through welding or the like.

Hereinafter, the structure packing part 50 will be described in detail with reference to FIGS. 4 to 6.

Here, FIG. 6 shows a partial perspective view of a perforated plate constituting the structure packing part installed in the scrubber device of the present invention.

4 and 5, at least one structure packing part 50 is installed inside the scrubber body 10.

In general, the scrubber device 1 has a higher dust collection efficiency as the temperature of the fluid is lower, but since high-temperature exhaust gas having a temperature of 200 degrees or more flows in, the temperature of the fluid mixed with seawater of about 20 degrees rises to 40 degrees or more. And, due to this, a phenomenon in which the dust collection efficiency is reduced may occur.

Therefore, the structure packing unit 50 applied to the present invention continuously cleans and disperses the fluid (exhaust gas) moving along the main flow path 19 of the scrubber body 10, thereby cleaning harmful particles in the exhaust gas. It is to ensure that the contact and agglomeration of the water particles in the water is effected effectively.

In addition, the structure packing unit 50 increases the surface area of the fluid and improves the mixing rate with the washing water, so that the temperature of the fluid decreases through the cooling effect, thereby improving the dust collection efficiency.

The collection layer 110 installed in the conventional scrubber shown in FIG. 2 is a structure in which small balls or rings having a large number of micro pores through which exhaust gas can pass are densely filled. Therefore, although it is possible to improve the trapping rate of harmful substances, a large amount of resistance is added to the movement of the fluid, and thus, the processing speed of the scrubber is greatly reduced by significantly lowering the movement speed of the fluid.

Therefore, the structure packing unit 50 applied to the present invention is to improve the above problems, to improve the straightness of the fluid, and to effectively diffuse and disperse the fluid.

The structure packing part 50 of this invention is comprised from the 1st packing part 51, the 2nd packing part 55, and the 3rd packing part 57.

Here, the first packing portion 51 is installed on the upper portion inside the scrubber body 10, the second packing portion 55 is installed on the lower portion of the venturi portion 30, the third packing portion (57) ) Is installed on the inner rear wall of the scrubber body 10 facing the venturi portion 30.

The first packing part 51 and the second packing part 55 and the third packing part 57 constituting the structured packing part 50 have the same basic structure, but a guide for guiding the movement of exhaust gas Since only the size (cross-sectional area) of the flow path is different, the detailed structure of the structure packing portion 50 will be described based on the first packing portion 51.

The first packing part 51 is installed so as to be horizontal in two stages spaced apart in the upper and lower directions on the upper side of the scrubber body 10.

The first packing portion 51 is composed of a plurality of perforated plates 40, which are formed by sequentially overlapping these perforated plates 40.

As shown in FIG. 6, the perforated plate 40 is formed by bending a plate material on which a plurality of pores 42 are formed, so that the bending grooves 45 are continuously formed.

That is, these perforated plates 40 are formed by bending a plate material having a certain thickness through which pores 42 through which exhaust gas can pass are zigzag, so that the bending grooves 45 having a '∧' shape are continuously formed along the surface thereof. Is formed.

At this time, the perforated plate 40 is composed of two different types of bending grooves 45 are formed to be inclined in the left or right direction.

Therefore, the first packing portion 51, the bending grooves 45 are alternately continuously overlapping each other so as to face each other, as shown in FIG. To form.

That is, in FIG. 4, the perforated plate 40 positioned at the front is disposed in which the bending groove 45 is inclined in the left direction, but overlapping and joining immediately after the perforated plate 40 is a bending groove ( 45) This is to arrange the perforated plate 40 inclined in the right direction.

On the other hand, if one of the perforated plates 40 is turned over, the inclined direction of the bending groove 45 is reversed, so it may be possible to sequentially stack the inverted perforated plates 40 and the perforated perforated plates 40 sequentially.

Therefore, in the first packing part 51, different perforated plates 40 are sequentially overlapped, and a plurality of bending grooves 45 are successively interspersed, so that these bending grooves 45 are used as main passages of exhaust gas. It acts as a guide flow path, thereby improving the straightness of the fluid to prevent the flow rate from being lowered, as well as causing the effect of separation of the fluid flow to the left and right.

In addition, since the exhaust gas is ejected in the horizontal direction through a plurality of pores 42, separation, mixing, and collision of the exhaust gas are continuously generated, thereby effectively inducing the mixing of the exhaust gas and the washing water.

The size and number of the perforated plates 40 may be appropriately selected and applied in correspondence with the internal size of the scrubber body 10.

In addition, the first packing portion 51 can be fixed by fixing a plurality of perforated plates 40 through welding or the like, or by installing a rectangular frame that can support these perforated plates 40. There will also be.

Meanwhile, as illustrated in FIG. 5, the second packing part 55 is installed on the lower part of the venturi part 30 and is installed between the partition wall 60 and the front wall of the scrubber body 10.

The second packing part 55 is formed in the same structure as the first packing part 51, but the cross-sectional area of the bending groove 45 serving as a guide flow passage is relatively smaller than the first packing part 51. By doing so, the guide flow path is made to be more densely formed.

In addition, the third packing portion 57 is installed to maintain a constant thickness in a horizontal state on the rear wall of the scrubber body 10 facing the curved portion of the venturi portion 30.

Here, the third packing portion 57 is also formed of the same structure as the first packing portion 51, but the cross-sectional area of the bending groove 45 is relatively larger than that of the first packing portion 51, The guide flow was extended.

Therefore, the first packing part 51, the second packing part 55, and the third packing part 57 differ only in the density of the bending groove (guide channel) 45, and this density ratio is The "second packing part 55: first packing part 51: third packing part 57" is made to be "upper: middle: lower".

Accordingly, the first, second, and

third packing parts

51, 55, and 57 configure the density of the guide flow paths differently in consideration of the moving speed of the moving fluid, thereby minimizing the moving resistance of the fluid and improving the straightness of the fluid. While securing, it is possible to effectively diffuse and disperse the fluid.

The structure packing unit 50 may be appropriately selected and applied in size, number, placement location, or density in consideration of the characteristics of the engine, the use environment, and the like.

Hereinafter, the cleaning water injection pipe provided in the present invention will be described in detail with reference to FIGS. 4 and 5.

The washing water injection pipe 70 is installed along the path through which the exhaust gas introduced through the gas inlet 11 of the scrubber body 10 moves, and serves to spray and mix the washing water with the moving exhaust gas. .

Here, the washing water injection pipe 70 is composed of a main injection pipe 71 and a channel injection pipe (75).

The main injection pipe 71 is respectively installed adjacent to the upper end of the first packing portion 51 installed on the upper portion of the scrubber body 10, and the channel injection pipe 75 is a Venturi channel provided in the Venturi portion 30 It is respectively installed inside the lower side of (32).

Here, the main injection pipe 71 is composed of an injection pipe body 72 horizontally installed in the horizontal direction of the main flow path 19, and a plurality of injection nozzles 73 spaced apart along the injection pipe body 72 do.

As shown in FIG. 4, the injection pipe main body 72 is formed in an empty pipe structure in which cleaning water can move, and both ends thereof are coupled to both side walls of the scrubber body 10 and horizontally. Fixed installation.

On the other hand, the injection nozzle 73 provided in the main injection pipe 71, as shown in FIG. 4, is spaced a predetermined distance along the injection pipe body 72, a plurality of arrangements are installed, and washing water is first packed It is installed so as to be able to jet downward to the unit (51).

Therefore, the main injection pipe 71 sprays the washing water to the first packing portion 51, so that the water particles of the washing water are effectively adsorbed on the harmful particles of the exhaust gas passing through the first packing portion 51. .

At this time, as shown in FIG. 4, the main injection pipe 71 and the channel injection pipe 75 are separate sea water supply pipes (not shown) through the washing water injecting portion protruding outward from the side wall of the scrubber body 10 Is connected to.

On the other hand, the channel injection pipe 75, like the main injection pipe 71, is composed of an injection pipe body 76 and an injection nozzle 77.

The channel injection pipes 75 are respectively installed inside the outlet of the venturi channel 32, thereby spraying the washing water downward toward the second packing portion 55.

At this time, since the channel injection pipe 75 sprays the washing water in the same forward direction as the direction in which the exhaust gas travels, it is possible not only to impart additional kinetic energy to the movement of the exhaust gas, but also the washing water to the gas inlet 11 Backflow can be prevented.

In addition, typically, since the exhaust gas is a high-temperature gas of about 230 ° C., the channel injection pipe 75 mixes the relatively high temperature of the exhaust gas entering the venturi portion 30 with relatively cold washing water to exhaust the exhaust gas. By rapidly cooling the gas, it is possible to reduce its volume, thereby minimizing the back pressure applied to the exhaust gas, thereby preventing side effects such as an increase in engine load or a decrease in power, The processing speed of the scrubber device 1 can be increased.

On the other hand, the main injection pipes 71 respectively installed on the upper side of the first packing part 51 spray cleaning water in the reverse direction with respect to the direction of exhaust gas, but are located on the upper side of the main flow passage 19. In addition, since the exhaust gas passes through the venturi part 30 and moves upward along the main flow path 19, the flow velocity is significantly reduced due to the sudden increase in the volume of the space, so that the back pressure is not applied to the exhaust gas. , It is possible to make the moisture of the washing water and particles of harmful substances in the exhaust gas contact and aggregate more effectively.

In addition, the main injection pipe 71 and the channel injection pipe 75 in the washing water injection pipe 70 are shown as being installed in parallel, as shown in FIG. 5, but are not limited thereto, and the scrubber body The size or structure of (10) can be appropriately selected and applied in consideration of the engine output, displacement, use environment, etc., and the number of

injection nozzles

72 and 75 is also considered in consideration of the processing capacity of the scrubber device 1. It will be applicable.

Hereinafter, an operation process of the venturi-integrated scrubber device of the present invention will be described in detail with reference to FIG. 7.

7 is a view showing the operation of the Venturi-integrated scrubber device according to the present invention, each of the washing water sprayed from the washing water spray pipe 70 is indicated by a dotted line.

First, since the gas inlet 11 is connected to the exhaust line of the engine, the exhaust gas discharged from the engine enters the gas inlet 11 of the scrubber body 10 as shown by the arrow 200.

The exhaust gas that has passed through the gas inlet 11 immediately enters the Venturi channel 32 provided in the Venturi part 30, and then moves along the Venturi channel 32 to the downward direction of the scrubber body 10. Will move.

At this time, the exhaust gas enters the Venturi channel 32 and moves as it diffuses through each Venturi channel 32, and thereafter, a channel injection pipe installed at the outlet of each Venturi channel 32. It is mixed with the washing water sprayed downward from 75 to pass through the second packing portion 55.

When the mixed gas in which the exhaust gas and the washing water are mixed passes through the second packing portion 55, bending grooves (guide flow paths) 45 intersecting in the left and right directions formed in the second packing portion 55 (FIG. 6), while being torn to the left and right, it is ejected in the transverse direction through a plurality of pores 42 and continuously collides and mixes.

In this process, as the temperature of the mixed gas is lowered and continuously diffused and dispersed, harmful particles of the exhaust gas and moisture particles of the washing water are effectively agglomerated and exit the second packing part 55.

At this time, the harmful particles of the exhaust gas and the water particles of the agglomerated washing water fall down the scrubber body 10.

After the mixed gas exiting the second packing part 55 moves through the opening 65 formed by the bottom surface of the scrubber body 10 and the partition wall 60 and hits the rear wall of the scrubber body 10, It moves upward along the main flow path 19.

On the other hand, the mixed gas moving upward along the main flow path 19 passes through the third packing portion 57 installed on the rear wall of the scrubber body 10.

At this time, since the third packing portion 57 has a relatively large cross-sectional area of the bending groove 45, the density of the guide flow path formed by the bending groove 45 is low, thereby minimizing the flow resistance of the mixed gas. I can do it.

On the other hand, the mixed gas is diffused and dispersed to the surroundings while passing through the third packing portion 57, so that it is easily moved to the central portion of the main flow path 19.

In this way, the mixed gas passing through the third packing part 57 sequentially passes through the two first packing parts 51 along the main flow passage 19, and the washing water sprayed from the main spray pipe 71 And is mixed again to move upwards, and at this time, harmful particles of the exhaust gas aggregate with moisture particles and fall downward.

Therefore, as described above, the exhaust gas is introduced from the gas inlet 11, passes through the venturi part 30, and then moves upward along the main flow path 19, in the gas phase of sulfur oxides contained therein. Particulate particulates, such as particles and dust or fine dust, come into contact with and agglomerate with the moisture particles of the washing water and fall downward, whereby harmful substances are removed.

At this time, the exhaust gas is discharged to the outside through the gas outlet 12 in a state in which the harmful substances contained therein are removed, and the cleaning water adsorbed by the harmful substances falls down to the scrubber body 10, and then the cleaning water It is discharged to the outside through the outlet (13).

Therefore, the present invention is to install the Venturi part 30 inside the scrubber body 10, and adopt the multi-stage scrubber body 10, thereby increasing the size, volume, or weight of the entire scrubber device 1. Not only can it be reduced in size and compacted, but it is easy to install or disassemble the scrubber device 1, and it is possible to improve portability and storage.

In addition, the present invention is easy to add or expand the Venturi channel 32 provided in the Venturi part 30, so that it can be effectively applied to various engine characteristics or usage environments, and exhaust through the structure packing part 50. Since the gas can be diffused and dispersed more effectively and can be cooled, it is possible to improve the dust collection efficiency of harmful substances, and to speed up the treatment of exhaust gas.

As described above, the above-described embodiment is merely described as an example for convenience of description, and thus the scope of the claims is not limited, and various modifications may be made within the technical scope of the present invention.

For example, the arrangement position or number of the gas inlet 11 and the gas outlet 12, or the shape of the scrubber body 10, etc. are not limited to those shown, and can be applied by various modifications in response to the use environment. In addition, structures and arrangement positions, such as the washing water injection pipe 70 and the structure packing part 50, can also be appropriately modified and applied.

In addition, although not shown, a general demister for collecting and removing moisture contained in exhaust gas may be installed inside the scrubber body 10.

Here, the demister serves as a filter for filtering moisture contained in the exhaust gas, and various products made of a fiber material, a plastic, or a metal material can be applied.

The venturi-integrated scrubber device of the present invention described above can be used to reduce harmful substances in exhaust gas by connecting to various engine facilities such as a ship's main engine, a power generation engine, or a boiler.

Claims

In addition to providing a main flow path through which the exhaust gas can be moved, a scrubber body having an empty interior through which the exhaust gas and the cleaning water for cleaning the exhaust gas can be introduced and discharged, respectively;

It is installed on the front side of the inside of the scrubber body so that the gas inlet installed in the front portion of the scrubber body communicates with the main flow passage, but a venturi channel having a multi-layer structure capable of moving the exhaust gas downward is provided. Venturi part;

At least one structure packing unit spaced apart inside the scrubber body and providing a plurality of pores and guide flow paths to diffuse and disperse the exhaust gas; And

Containing, including; a plurality of cleaning water spray pipes for multiple spraying of the washing water to the lower side of the scrubber body,

The venturi channel,

A plurality of partition walls are spaced apart in a horizontal state to form a stacked structure in the upper and lower directions of the scrubber body, but a curved surface is provided on the partition walls so that the flow path of the exhaust gas changes downwardly.

The structure packing portion,

A plurality of first packing portion installed on the upper portion of the scrubber body, a second packing portion spaced apart to face the lower end of the venturi portion, and installed on the inner rear wall of the scrubber body facing the venturi portion Venturi-integrated scrubber device, characterized in that it comprises a third packing.
According to claim 1,

Venturi-integrated scrubber device, characterized in that at the lower end of the partition wall, a guide plate is installed to be inclined at a certain angle in the inner direction.
According to claim 1,

The second packing portion,

A venturi-integrated scrubber device, characterized in that a partition wall extending a predetermined distance downward is installed at a lower end of the outermost partition wall of the venturi part, and is installed between the partition wall and the front wall of the scrubber body.
According to claim 1,

The structure packing portion,

A plurality of perforated plates are alternately overlapped so that the bent grooves are inclined in the left or right direction by alternately overlapping the perforated plates by bending a plate material having a plurality of pores in a zigzag manner and forming a plurality of bending grooves continuously Venturi-integrated scrubber device, characterized in that the bending grooves are arranged to cross.
According to claim 1,

The washing water injection pipe,

Venturi-integrated type, characterized in that it is installed on the upper portion of the first packing portion is composed of a plurality of main injection pipe for multiple injection of cleaning water toward the first packing portion and a channel injection pipe installed inside the lower side of the venturi channel Scrubber device.