KR20210026040A - Exhaust Gas Treatment Equipment With Reduced Pressure Loss and Improved Diffusion And Mixing performance - Google Patents

Abstract

The present invention relates to an exhaust gas treatment device for reducing a pressure loss and improving diffusion and mixing performance, which comprises a multi-diffusion means, a conversion means, a multi-dispersion means, and a housing having a gas inlet and a gas outlet where exhaust gas generated by combustion is introduced and discharged. The multi-dispersion means is provided to be spaced from the gas inlet to evenly disperse the introduced exhaust gas to an outer portion of the housing, and the conversion means is provided to an upper portion of the multi-dispersion means to primarily collect the lifting exhaust gas to a center portion to be lifted again. The multi-dispersion means is provided to be spaced from an upper portion of the conversion means at a predetermined interval to disperse the exhaust gas lifted from a lower portion.

Description

Exhaust Gas Treatment Equipment With Reduced Pressure Loss and Improved Diffusion And Mixing performance}

And a housing having a gas inlet and a gas outlet through which the exhaust gas generated by combustion flows in and out, and a multi-dispersing means, a switching means, and a multi-diffusion means, and the multi-dispersing means is provided in a state spaced apart from the gas inlet. Inflowing exhaust gas is evenly distributed to the outer portion of the housing, and the switching means is provided on the upper portion of the multi-dispersing means to primarily converge and re-elevate the rising exhaust gas to the central portion, and the multi-diffusion means comprises the The present invention relates to an exhaust gas treatment apparatus having reduced pressure loss and improved diffusion and mixing performance, characterized in that it is provided in a state spaced apart from a predetermined distance above the switching means to diffuse exhaust gas rising from the bottom.

Most modern ships are equipped with engines and boilers for their own power and heating. In order to drive the engine and boiler, fuel must be burned, and the exhaust gas generated during the combustion process contains harmful substances such as sulfur oxide (SOx), nitrogen oxide (NOx), and PM (particular matter, particulate matter). have.

Sulfur oxide or nitrogen oxide may act on the mucous membrane of the human body and cause respiratory diseases, and it is also a pollutant designated as a first-class carcinogen by the International Cancer Institute under the World Health Organization (WHO). In addition, when the SOx or NOx is released into the air as it is, it reacts with _{moisture (H 2 0) in the atmosphere to become sulfuric acid (H 2} SO ₄ ) and nitric acid (HNO ₃ ), respectively, which is a major cause of acid rain.

PM is in the form of small particles compared to gaseous pollutants, and if PM in exhaust gas is released into the atmosphere as it is, it may cause visibility impairment to reduce visibility, or fine particles may enter the human body through the lungs or respiratory tract and cause various diseases. . Fine dust, which has recently become a problem in Korea, is also caused by the PM and can be seen as a major cause of air pollution.

Therefore, it is necessary to prevent such harmful substances in exhaust gas. In particular, ships have a huge engine output and are known to emit 130 times more exhaust gas than passenger cars. Specific and practical countermeasures for ship's exhaust gas are required.

Accordingly, the International Maritime Organization (IMO) has established an Emission Control Area (ECA) to limit the emission of harmful substances within the sea area. In particular, the SOx Emission Control Area (SECA) is more broadly regulated than the ECA, which also regulates other harmful substances such as NOx, and is imposing strong sanctions.

In addition, from January 1, 2015, regulations were further strengthened to limit the sulfur content in fuels that cause environmental pollution to all ships passing through the SECA to 0.1% (IMO 184(59)). The SECA was expanded from the Baltic Sea and North Sea to North America through the amendment of the Convention on the Prevention of Marine Pollution in August 2011, and will continue to expand from April 1, 2016. Sulfur oxide management is expected to become more important.

In addition, a bill to reduce the SOx content in exhaust gas to less than 3.5% in sea areas other than ECA was passed at the IMO general meeting held on October 28, 2016, and is expected to be implemented from 2020. Regardless, the need for sulfur oxide management is increasing.

In order to comply with these international regulations, LNG propulsion vessels that use low sulphur or natural gas with low sulfur oxide emissions are used as fuel, but a scrubber is used to reduce sulfur oxides in the exhaust gas. Sometimes it does.

When the post-treatment process is performed using a scrubber, it is economically advantageous because the above regulations can be satisfied and environmental pollution can be prevented even with a low-cost fuel having a relatively high sulfur content. As such, the scrubber can satisfy both economical and environmental efficiency, so it is highly versatile enough to be used not only in ships but also in power plants.

<Patent Literature>

US Patent Publication No. US 9,272,241 (registered on March 1, 2016) "COMBINED CLEANING SYSTEM AND METHOD FOR REDUCTION OF SOX AND NOX IN EXHAUST GASES FROM A COMBUSTION ENGINE"

The invention shown in the above patent document discloses a scrubber for absorbing SOx and PM in exhaust gas. The scrubber ionizes SOx with a cleaning solution. In this case, when sea water having a pH of around 8.3 is used, the ionized sulfur oxide can be neutralized without a separate alkaline additive. In addition, it is also possible to prevent discharge into the atmosphere by coagulating incident substances and discharging them together in the cleaning liquid.

However, the present invention only shows a schematic diagram of the circulation process of the exhaust gas including the scrubber and the cleaning liquid, and does not mention the specific shape and cleaning method inside the scrubber.

Since the scrubber has a very long vertical shape, it occupies a large volume of the ship, making it inefficient in terms of space utilization and harms the aesthetics of the ship. Therefore, there is a need for a method of lowering the height of the scrubber, and the document does not disclose a solution to this problem at all.

When the exhaust gas flowing into the scrubber is evenly dispersed in the processor, the working efficiency using the cleaning liquid is increased, but the prior document does not have a configuration for this.

In addition, the mixing method can be regarded as one of the important performances of the scrubber, since the cleaning operation can be properly performed only when the cleaning liquid and the exhaust gas are mixed smoothly, increasing the contact time and the contact area between the two. There is not.

In addition, when passing through the scrubber in the exhaust gas discharge process, pressure loss occurs due to seawater injection for cleaning and obstruction of the path due to the structure. And the document does not provide a plan for this.

It is also a problem when a cleaning solution such as seawater injected in the scrubber flows backward and flows into an engine or a boiler where exhaust gas is emitted, but the patent document does not describe any countermeasures for this.

Although the amount of exhaust gas discharged according to the load of the engine or boiler is variable, the patented invention in which the cleaning liquid is injected collectively without considering such a change in flow has a problem of inferior efficiency in operation.

Filters such as a demister (separator) for removing fine cleaning liquid particles in exhaust gas are clogged and cleaned when used for a long period of time, and a method for cleaning such a demister is also required.

Therefore, it minimizes the pressure loss of the exhaust gas and distributes it evenly, and effectively removes harmful substances by properly mixing sulfur oxides and PM with the cleaning solution, thereby discharging only clean gas, while reducing the volume of the scrubber to increase space utilization. There is a need for an exhaust gas treatment device that can flexibly adapt to improve work efficiency and prevent reverse flow of cleaning liquid to the engine.

US Patent Publication No. US 9,272,241 (2016.03.01)

The present invention was conceived to solve the above problems,

It is an object of the present invention to provide an exhaust gas processing apparatus having high cleaning efficiency as exhaust gas is evenly distributed in an exhaust gas processing apparatus housing and thus a contact time and a contact area with a cleaning liquid increase.

Another object of the present invention is to provide an exhaust gas treatment apparatus capable of efficient cleaning operation by reducing pressure loss while exhaust gas is widely diffused in a housing.

Another object of the present invention is to foam the sprayed cleaning liquid by being located near the spray nozzle where the cleaning liquid is sprayed, and thus the sprayed droplets can react with sulfur oxide (SOx) or fine particles (PM) in the exhaust gas. It is to provide an exhaust gas treatment apparatus with improved cleaning efficiency by increasing the surface area and diversifying the direction of travel so that pollutants in the exhaust gas can be more efficiently collected.

Another object of the present invention is to enable a single structure to perform various functions, thereby saving space and organically connecting various structures in the exhaust gas treatment system to control the flow of exhaust gas and efficiently process the mixing of the cleaning liquid. It is to provide an exhaust gas treatment device capable of.

Another object of the present invention is to include a housing having a gas inlet and a gas outlet through which exhaust gas generated by combustion flows in and out, and a multi-dispersing means, a conversion means, and a multi-diffusion means, wherein the multi-dispersing means is the gas inlet. The exhaust gas provided in a state spaced apart from the unit is distributed evenly to the outer portion of the housing, and the switching means is provided on the upper portion of the multi-dispersing means to primarily converge and re-elevate the rising exhaust gas to the central portion. The multi-diffusion means is provided in a state spaced apart by a predetermined distance above the switching means to provide an exhaust gas treatment device that diffuses the exhaust gas rising from the bottom.

Another object of the present invention is that the multi-dispersing means has a dispersing unit for dispersing rising exhaust gas to an outer portion of the housing, and an exhaust gas rising to the central portion of the housing with a shape having a centrally recessed upward as a whole. It is to provide an exhaust gas treatment apparatus including an upper cap provided to block the exhaust gas rising to the center through the inlet to the outside.

Another object of the present invention is that the dispersion unit includes a plurality of dispersion rings provided spaced apart from the lower end of the upper cap by a predetermined distance, and the dispersion rings are provided to be spaced apart from each other to pass exhaust gas through the dispersion rings. The dispersion ring has a shape of an upper and lower light, and is reduced in a certain ratio from the bottom to the top to provide an exhaust gas treatment device that evenly distributes the exhaust gas to the outer portion of the housing.

Another object of the present invention is that the exhaust gas treatment apparatus further comprises a first multi-injection means provided on an upper side of the multi-dispersing means and a lower side of the switching means, and the first multi-injection means comprises a plurality of injection means. To provide an exhaust gas treatment apparatus that induces smooth mixing of the cleaning liquid and exhaust gas by spraying the cleaning liquid, including.

Another object of the present invention is that the spraying means includes a spraying hole for spraying the cleaning liquid downward, and the upper cap is located at a predetermined distance from the spraying hole of the multiple spraying means, and the diameter of the sprayed cleaning liquid is foamed to a small size. It is to provide an exhaust gas treatment device capable of more efficiently collecting pollutants in exhaust gas by increasing the surface area of the droplets and diversifying the direction of travel.

Another object of the present invention is to provide an exhaust gas treatment apparatus in which the upper cap has a shape of an upper narrow light having a constant inclination and is foamed so that droplets of a cleaning liquid having a smaller diameter are evenly dispersed throughout.

Another object of the present invention is that the injection port is provided to inject the cleaning liquid toward the outside of the upper cap, so that the foamed cleaning liquid droplets reach a relatively distant area, thereby promoting the smooth mixing of the exhaust gas and the cleaning liquid. It is to provide the device.

Another object of the present invention is to provide an exhaust gas treatment apparatus in which the injection port is provided so as to be rotatable so that the spraying angle of the cleaning liquid can be adjusted to adjust the distance through which the foamed cleaning liquid droplets can travel.

Another object of the present invention is that the multi-diffusion means includes a first layer and a second layer, the first layer is provided at a predetermined distance above the switching means, and the second layer is the first layer. It is provided with a predetermined distance upward from the layer, the first layer and arranged alternately to provide an exhaust gas treatment device that is first purified and then converges toward the center to evenly diffuse the rising exhaust gas.

Another object of the present invention is that the first layer and the second layer are arranged in a state in which a plurality of diffusers are spaced apart at a predetermined distance, and the diffusers are staggered to cover the distance between the diffusers of adjacent layers. It is arranged, and the diffuser is provided so that the cross section formed in an inclined or curved shape so that the center protrudes downwards is provided so that the cross section is approximately uniformly extended to diffuse the rising exhaust gas to both sides and to block the washing liquid falling from the upper side. Is to provide.

Another object of the present invention is to provide an exhaust gas treatment apparatus capable of blocking the cleaning liquid falling between the diffusion bodies by being formed to have a width greater than the gap between the diffusion bodies.

Another object of the present invention is that the width of the second layer is formed to be larger than the diameter of the discharge portion of the switching means, the width being from one end of the diffuser arranged at one end to the one end of the diffuser arranged at the other end. It is characterized in that the distance to, to provide an exhaust gas treatment device that blocks the advancing of the falling cleaning liquid into the discharge port.

Another object of the present invention is that the exhaust gas treatment apparatus further comprises a second multi-injection means provided at a predetermined distance above the multi-diffusion means, and the second multi-injection means includes a plurality of injection means. Thus, there is provided an exhaust gas treatment apparatus that is primarily purified by spraying a cleaning liquid and then evenly diffuses and induces the rising exhaust gas to be secondarily mixed with the cleaning liquid.

Another object of the present invention is that the exhaust gas treatment apparatus further comprises a radix separation means provided at a predetermined distance above the second multi-injection means, and the radix separation means passes through the second multi-injection means. Thus, there is provided an exhaust gas treatment apparatus that separates the cleaning liquid in the rising exhaust gas and extracts pollutants from the exhaust gas.

The present invention is implemented by an embodiment having the following configuration in order to achieve the above object.

According to an embodiment of the present invention, the present invention includes a housing having a gas inlet and a gas outlet through which exhaust gas generated by combustion flows out, and a multi-dispersing means, a switching means, and a multi-diffusion means. The means is provided in a state spaced apart from the gas inlet to evenly distribute the inflowing exhaust gas to the outer portion of the housing, and the switching means is provided on the upper portion of the multi-dispersing means to transfer the rising exhaust gas to the central portion. Converging and re-elevating, the multi-diffusion means is provided at a predetermined distance apart from the upper portion of the switching means to diffuse the exhaust gas rising from the lower portion.

According to another embodiment of the present invention, the multi-dispersing means has a dispersing unit for distributing rising exhaust gas to an outer portion of the housing and a shape having a centrally recessed upwardly to the central portion of the housing. It characterized in that it comprises an upper cap provided to block the rising exhaust gas.

According to another embodiment of the present invention, in the present invention, the dispersion unit includes a plurality of dispersion rings provided to be spaced apart from the lower end of the upper cap by a predetermined distance, and the dispersion rings are provided to be spaced apart from each other to The exhaust gas is passed through, but the dispersion ring has a shape of an upper and lower light, and is reduced in a certain ratio from the bottom to the top to evenly distribute the exhaust gas to the outer portion of the housing.

According to another embodiment of the present invention, the exhaust gas treatment apparatus further comprises a first multi-injection means provided above the multi-dispersing means and a lower side of the switching means, wherein the first multi-injection The means is characterized in that it induces smooth mixing of the cleaning liquid and the exhaust gas by injecting the cleaning liquid including a plurality of injection means.

According to another embodiment of the present invention, the spraying means includes a spraying hole for spraying the cleaning liquid downward, and the upper cap is positioned at a predetermined distance from the spraying hole of the multiple spraying means, and It is characterized in that it is possible to more efficiently collect pollutants in the exhaust gas by increasing the surface area of the droplets by foaming them with a small diameter and diversifying the traveling direction.

According to another embodiment of the present invention, the upper cap is characterized in that the upper cap has a shape of an upper narrow light having a certain inclination and is foamed so that the droplets of the cleaning liquid having a smaller diameter are evenly dispersed throughout.

According to another embodiment of the present invention, the injection port is provided to spray the cleaning liquid toward the outside of the upper cap, so that the foamed cleaning liquid droplet reaches a relatively distant area, so that the exhaust gas and the cleaning liquid are smoothly mixed. It is characterized in that to promote.

According to another embodiment of the present invention, the present invention is characterized in that the injection port is provided so as to be rotatable to adjust the spray angle of the cleaning liquid to adjust the distance through which the foamed cleaning liquid droplets can travel.

According to another embodiment of the present invention, the multi-diffusion means includes a first layer and a second layer, the first layer is provided at a predetermined distance above the switching means, and the first layer The second layer is provided to be spaced a predetermined distance upward from the first layer, and is arranged alternately with the first layer.

According to another embodiment of the present invention, the first layer and the second layer are arranged in a state in which a plurality of diffusers are spaced apart by a predetermined distance, and the diffuser is between diffusers of adjacent layers. The diffuser is arranged alternately to cover the gap of the diffuser, and the diffuser is provided so that a cross section formed in an inclined or curved shape such that the center protrudes downward is approximately uniformly extended, so that the washing liquid falling from the upper side can be blocked.

According to another embodiment of the present invention, the diffuser is formed such that the width of the diffuser is larger than the spacing between the diffusers so as to block the cleaning liquid falling between the spacings.

According to another embodiment of the present invention, in the present invention, the width of the second layer is formed to be greater than the diameter of the discharge portion of the switching means, the width from one end of the diffuser arranged at one end to the other end. It is characterized in that it is the distance to one end of the arranged diffusers, and it is characterized in that it blocks the advancing of the falling cleaning liquid into the discharge port.

According to another embodiment of the present invention, the exhaust gas treatment apparatus further comprises a second multi-injection means provided at a predetermined distance above the multi-diffusion means, and the second multi-injection means It is characterized in that the exhaust gas is firstly purified by spraying the cleaning liquid including a plurality of injection means, and then evenly diffused to induce the rising exhaust gas to be secondaryly mixed with the cleaning liquid.

According to another embodiment of the present invention, the exhaust gas treatment apparatus further comprises a radix separation means provided above the second multi-injection means by a predetermined distance, wherein the radix separation means 2 It is characterized in that the cleaning liquid inside the exhaust gas rising through the multi-injection means is separated and pollutants are extracted from the exhaust gas.

The present invention can obtain the following effects by the configuration, combination, and use relationship to be described below with the present embodiment.

The present invention includes a housing having a gas inlet and a gas outlet through which exhaust gas generated by combustion flows in and out, and a multi-dispersing means, a switching means, and a multi-diffusion means, wherein the multi-dispersing means is spaced apart from the gas inlet. The exhaust gas that is provided in the state is distributed evenly to the outer portion of the housing, and the switching means is provided on the upper portion of the multi-dispersing means to primarily converge and re-elevate the rising exhaust gas to the central portion. The diffusion means is provided in a state spaced apart by a predetermined distance above the switching means, and has an effect of diffusing the exhaust gas rising from the bottom.

In the present invention, the multi-dispersing means has a dispersing unit for dispersing rising exhaust gas to an outer portion of the housing, and a shape having a centrally recessed upward as a whole, so that the exhaust gas rising to the central portion of the housing can be blocked. It has the effect of dispersing the exhaust gas rising to the center through the inlet including the upper cap.

In the present invention, the dispersion unit includes a plurality of dispersion rings provided to be spaced apart from the lower end of the upper cap by a predetermined distance, and the dispersion rings are provided to be spaced apart from each other to pass exhaust gas through the dispersion rings, but the dispersion rings are negotiated. There is provided an exhaust gas treatment apparatus which has a shape of a lower light and is reduced by a certain ratio from the bottom to the top to evenly distribute the exhaust gas to the outer portion of the housing.

In the present invention, the exhaust gas treatment apparatus further includes a first multi-injection means provided on an upper side of the multi-dispersing means and a lower side of the switching means, wherein the first multi-injection means includes a plurality of injection means, and It is possible to provide an exhaust gas treatment apparatus that induces smooth mixing of the cleaning liquid and exhaust gas by injecting.

In the present invention, the spraying means includes a spraying hole for spraying the cleaning liquid downward, and the upper cap is located at a predetermined distance from the spraying hole of the multiple spraying means, and the diameter of the sprayed cleaning liquid is foamed to reduce the surface area of the droplets. It is accompanied by the effect of providing an exhaust gas treatment apparatus capable of more efficiently collecting pollutants in exhaust gas by increasing and diversifying the direction of progress.

In the present invention, the upper cap has the shape of an upper narrow light having a certain inclination and is foamed so that the droplets of the cleaning liquid having a smaller diameter are evenly dispersed throughout.

In the present invention, the injection port is provided to inject the cleaning liquid toward the outside of the upper cap, so that the foamed cleaning liquid droplets reach a relatively distant area, thereby promoting smooth mixing of the exhaust gas and the cleaning liquid.

The present invention provides an exhaust gas treatment apparatus in which the injection port is rotatably provided to adjust the spray angle of the cleaning liquid to adjust the distance through which the foamed cleaning liquid droplets can travel.

In the present invention, the multi-diffusion means includes a first layer and a second layer, the first layer is provided at a predetermined distance above the switching means, and the second layer is upwardly from the first layer. The effect of providing an exhaust gas treatment device which is provided spaced apart from a predetermined distance, is arranged alternately with the first layer, is first purified, and then converges toward the center to evenly diffuse the rising exhaust gas.

The present invention has the effect of providing an exhaust gas treatment apparatus capable of adjusting the distance and direction in which the foamed cleaning liquid droplets can travel by rotatably providing the injection hole adjacent to the third foaming portion.

In the present invention, the first layer and the second layer are arranged in a state in which a plurality of diffusers are spaced apart at a predetermined interval, and the diffusers are alternately arranged to cover the space between the diffusers of adjacent layers, and the diffusion The sieve is provided so that the cross section formed in an inclined or curved shape so that the center protrudes downwards is provided so that the cross section is approximately uniformly extended to diffuse the rising exhaust gas to both sides and to provide an exhaust gas treatment device capable of blocking the washing liquid falling from the top. Have.

The present invention has the effect of providing an exhaust gas treatment apparatus capable of blocking the cleaning liquid falling between the diffusion bodies by being formed so as to have a width greater than the gap between the diffusion bodies.

In the present invention, the width of the second layer is formed to be larger than the diameter of the discharge portion of the switching means, the width is the distance from one end of the diffuser arranged at one end to the one end of the diffuser arranged at the other end It is characterized in that it has the effect of providing an exhaust gas treatment device that blocks the advancing of the falling cleaning liquid into the discharge port.

In the present invention, the exhaust gas treatment apparatus further comprises a second multi-injection means provided at a predetermined distance above the multi-diffusion means, and the second multi-injection means includes a plurality of injection means to inject a cleaning liquid. By doing so, it has the effect of providing an exhaust gas treatment apparatus that induces the exhaust gas that is firstly purified and then spreads evenly and rises to be mixed with the cleaning liquid secondary.

In the present invention, the exhaust gas treatment device further comprises a radix separation means provided at a predetermined distance above the second multi-injection means, and the radix separation means is an exhaust gas rising through the second multi-injection means. It is possible to provide an exhaust gas treatment apparatus for separating the cleaning liquid inside the gas and extracting pollutants from the exhaust gas.

1 is a view showing a housing 11 of an exhaust gas treatment apparatus 1 according to a preferred embodiment of the present invention.
2 is a cross-sectional view of a housing 11 according to a preferred embodiment of the present invention.
Figure 3 is an exploded perspective view of the multi-dispersing means 12 according to an embodiment of the present invention.
4 is a view showing a support structure of the third dispersion ring 1213 and the upper cap 122 according to an embodiment of the present invention.
5 is a view showing a support structure of the third dispersion ring 1213 and the upper cap 122 according to another embodiment of the present invention.
6 is a view showing the flow of exhaust gas passing through the multi-dispersing means 12 according to a preferred embodiment of the present invention.
7 is a view showing an upper cap (122') according to another embodiment of the present invention.
8 is a perspective view showing a first multi-injection means 13 according to an embodiment of the present invention.
9 is a cross-sectional view showing a first multi-injection means 13 according to an embodiment of the present invention.
10 is a plan view showing a first injection means 131 according to an embodiment of the present invention.
11 is a plan view showing a second injection means 132 according to an embodiment of the present invention.
12 is a view showing the upper cap 122 and the injection hole (131c) according to an embodiment of the present invention.
13 is a view showing the upper cap 122 and the injection hole (131c') according to another embodiment of the present invention.
14 is a view showing an upper cap (122') and the injection hole (131c) according to another embodiment of the present invention.
15 is a view showing the upper cap 122' and the injection hole 131c' according to another embodiment of the present invention.
16 is a perspective view of a switching means 14 and a multi-diffusion means 15 according to an embodiment of the present invention.
17 is a cross-sectional view of a switching means 14 and a multi-diffusion means 15 according to an embodiment of the present invention.
18 is a perspective view showing a diffuser 1511 according to an embodiment of the present invention.
19 is a perspective view showing a diffuser 151' according to another embodiment of the present invention.
20 is a perspective view of a second multi-injection means 16 according to an embodiment of the present invention.
21 is a cross-sectional view of a second multi-injection means 16 according to an embodiment of the present invention.
22 is a cross-sectional view showing a cross-section of the radix separation means 17 according to a preferred embodiment of the present invention.
23 is a view showing the separation of droplets or mist contained in exhaust gas by the brackish water separation means (17).

Hereinafter, preferred embodiments of an exhaust gas treatment apparatus including a multi-dispersing means according to the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, when it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. Unless otherwise defined, all terms in this specification are the same as the general meaning of the terms understood by those of ordinary skill in the art to which the present invention belongs. According to the definitions used in the specification.

Throughout the specification, when a part "includes" a certain component, it does not exclude other components unless otherwise stated, it means that other components may also be included, and in the specification Terms such as "~ unit" described refer to a unit that processes at least one or more functions or operations. In addition, when it is said that certain components are "connected", this is not limited to being in direct contact and fastening between the components, but includes fastening through other components, and it is possible to transmit a predetermined force or energy even if they are not fastened. It can mean that it is arranged to be. Hereinafter, the present invention will be described in detail by describing a preferred embodiment of the present invention with reference to the accompanying drawings.

1 is a diagram showing a housing 11 of an exhaust gas treatment apparatus 1 according to a preferred embodiment of the present invention, and FIG. 2 is a cross-sectional view of a housing 11 according to a preferred embodiment of the present invention. Referring to FIG. 1, exhaust gas from an engine or boiler contains harmful substances such as sulfur oxide (SOx), nitrogen oxide (NOx), and particulate matter (hereinafter, referred to as PM). Upon entering, the exhaust gas treatment device 1 may include a housing 11 provided with a plurality of means for reducing the harmful substances in stages.

Referring to FIG. 1, the housing 11 may have various shapes in the form of a huge barrel with an empty inside, but generally there are many cylindrical housings 11, which form the exterior of the housing 11 on the side surface. Including a wall part 111 and a cleaning liquid inlet 114 that is introduced to inject the cleaning liquid from the inside, a gas inlet 112 through which exhaust gas enters and a cleaning liquid outlet 115 through which the sprayed cleaning liquid exits. ), may include a gas outlet 113 through which the exhaust gas exits.

Referring to FIG. 2, the wall portion 111 has a vertical wall 111a extending vertically and an inclined wall 111b formed extending from the vertical wall 111a in the vicinity of the gas outlet 113. It may include.

The gas inlet 112 may include a gas inlet pipe 112a protruding into the housing 11 and communicating with one side of the multiple dispersing means 12 to be described later. As it is composed of a hollow cylinder with an empty inside, it functions as a passage through which exhaust gas can be introduced.

The gas outlet 113 is a place where the clean gas from which harmful substances are removed from the exhaust gas treatment device 1 is discharged into the atmosphere, and has a large hole to discharge the clean gas.

The cleaning liquid inlet 114 is a part into which the cleaning liquid for spraying from the inside of the housing 11 flows. As can be seen from FIG. 2, the washing liquid inlet 114 is connected or formed to the first multiple spraying means 13, the second multiple spraying means 16, and the water droplet separation means 17, which will be described later. have.

The cleaning liquid outlet 115 is a cleaning liquid outlet pipe 115a extending from one side of the bottom surface of the housing 11 to the lower portion of the housing 11 by a predetermined length as a place where the cleaning liquid descended while washing harmful substances is discharged to the outside of the housing 11 It may include, but is often formed in a hollow cylindrical shape for discharging the cleaning liquid. When installed on a ship, it is possible to smoothly discharge the washing liquid accumulated on one side according to the slope of the ship without a separate bottom slope due to the rolling phenomenon in which the hull tilts left and right and the pitching phenomenon inclined back and forth.

Next, with reference to FIGS. 1 to 23, the exhaust gas introduced into the housing 11 of the exhaust gas treatment device 1 is cleaned step by step, and finally sulfur oxide (SOx) and particulate matter (PM) are removed. Various means for discharging the purified gas will be described.

1 is a view showing a housing 11 of an exhaust gas treatment apparatus 1 according to a preferred embodiment of the present invention, and FIG. 2 is a cross-sectional view of the exhaust gas treatment apparatus 1. First, a schematic exhaust gas treatment apparatus 1 will be described with reference to FIGS. 1 and 2, and the exhaust gas treatment apparatus 1 according to an embodiment of the present invention is located above the gas inlet 112 Multiple dispersing means 12 for evenly distributing the exhaust gas inside the housing 11, a first multiple spraying means 13 for injecting a cleaning liquid in accordance with the progress of the exhaust gas rising from the upper side thereof, and rising exhaust gas 1 Conversion means 14 for collecting and discharging the cleaning liquid falling from the top while gradually converging and re-rising, and multiple diffusion means for spreading the rising exhaust gas relatively concentrated in the center of the housing 11 and raising it evenly ( 15), a second multi-injection means 16 in which a plurality of injection means are arranged in parallel, and a water droplet separation provided on the multi-injection means to separate the cleaning liquid including sulfur oxides (SOx) and fine particles (PM) from the exhaust gas Means 17 may be included.

Figure 3 is an exploded perspective view of the multi-dispersing means 12 according to an embodiment of the present invention. Referring to Figure 3, the multi-dispersing means 12 is provided with a predetermined distance apart from the top of the gas inlet 112 to evenly distribute the exhaust gas inside the housing 11, but evenly distributed to the outer portion. It can be provided. The multi-dispersing means 12 may preferably have the center of the gas inlet 112 and the planar shape coincide, and may include a dispersing part 121 and an upper cap 122.

The dispersing unit 121 may evenly disperse the exhaust gas introduced from the gas inlet unit 112 into the interior of the housing, and may include a plurality of dispersing rings 1211, 1212, and 1213 for this purpose. The dispersion ring is a ring having a shape of an upper narrow light as a whole, and each dispersion ring may be provided to be spaced apart by a predetermined distance so that exhaust gas passes therebetween. In addition, in an embodiment of the present invention, each dispersion ring may be provided so that the diameter of the annular shape decreases toward the upper side. That is, the second dispersion ring 1212 has a smaller diameter than the first dispersion ring 1211, and the third dispersion ring 1213 has a smaller diameter than the second dispersion ring 1212. It can have a shape that shrinks as it goes toward. In other words, the lower diameter of the upper cap 122 to be described later is larger than the upper diameter of the third dispersion ring 1213, and the lower diameter of the third dispersion ring 1213 is formed to be larger than the upper diameter of the second dispersion ring. , The lower end diameter of the second dispersion ring 1212 may be formed to be larger than the upper end diameter of the first dispersion ring 1211. Finally, a lower end diameter of the first dispersion ring 1211, which is a lowermost dispersion ring, may be formed to have a diameter larger than the diameter of the gas inlet 112. Accordingly, the rising exhaust gas may be uniformly distributed to the outer portion of the housing 11 while the speed decreases.

In addition, as shown in FIG. 3, in a preferred embodiment of the present invention, as the dispersion rings 1211, 1212, and 1213 are reduced toward the upper side, the upper end z1 of the first dispersion ring 1211 on the lower side The straight line developed vertically at may be connected to the middle portion y2 of the second distribution ring 1212 on the upper side. In another embodiment of the present invention, a straight line extending vertically from the upper end z1 of the lower first dispersion ring 1211 is the lower end (x2) rather than the middle portion (y2) of the second dispersion ring 1212 at the upper side. It may touch the part between the and the top (z2). While the upper cap and the dispersion rings are provided as described above, the cleaning liquid falling from top to bottom preferably does not flow into the space between the dispersion rings but flows along the outside, and as a result, the outside of the gas inlet 112 It is possible to prevent the washing liquid from falling into the gas inlet 112 and causing unexpected damage to the pipe or the engine by allowing it to be dropped into and discharged through the washing liquid outlet 115.

In another embodiment of the present invention, the dispersion rings 1211, 1212, 1213 may be provided with a plurality of through-holes, and exhaust gas may pass therebetween to further reduce pressure loss. Part of the exhaust gas flowing into the gas inlet 112 exits into the space between the first distribution ring 1211 and the second distribution ring 1212, and a part of the remaining exhaust gas is the first distribution ring 1211. Passing through the center of, the second distribution ring 1212 and the third distribution ring 1213, and the remaining exhaust gas escapes into the space between the third distribution ring 1213 and the upper cap 122. As it goes out, it is formed so that the flow of exhaust gas is uniformly distributed as a whole while reducing the pressure loss. The dispersion rings have a plurality of through holes, and in order to prevent the cleaning liquid from falling into the gas inlet 112, the dispersion rings 1211, 1212, and 1213 may have through holes only in a predetermined portion. For example, when a straight line extending vertically from the top z1 of the first distribution ring 1211 is connected to the middle portion y2 of the second distribution ring 1212, the second distribution ring is the middle portion y2 ) And the lower end (x2) and the through hole is not provided between the middle portion (y2) and the upper end (z2), so that the cleaning liquid passing through the through hole is passed through the gas inlet part 112 by the first dispersion ring 1211 ) Can also be blocked from entering.

The upper cap 122 may be provided to block exhaust gas rising through the central portion of the housing 11, and as a result, the exhaust gas may be evenly distributed to the outer portion of the housing 11. The upper cap 122 may preferably have a conical shape in which the bottom surface is an opening. Accordingly, the upper cap 122 has an opening in the lower portion and is formed to protrude upward and be recessed as a whole, and may take the shape of an upper narrow beam having a constant inclination. It is possible to effectively block the exhaust gas rising vertically from the central portion of the housing 11, and allow the exhaust gas to flow to the outer portion without being stagnated in the upper cap 122 to be dispersed. The upper cap 122 may include an inner surface 1221 and an outer surface 1222.

The inner surface 1221 may be provided to face the exhaust gas rising from the lower side, prevent the exhaust gas from rising toward the center, and may naturally flow toward the outer side to be evenly distributed. The inner surface 1221 is formed by being recessed toward the center, and the exhaust gas rising to the center portion is blocked, and when it does not pass through the inner surface 1221 and flows to the outer portion, the upper cap 122 and the It escapes between the third dispersion rings 1213.

The outer surface 1222 may be formed to widen from the top to the bottom. In a preferred embodiment of the present invention, since the upper cap 122 is formed to have a conical shape, it may be provided to have a certain inclination. As described later, the outer surface 1222 foams the cleaning liquid injected from the injection hole 131c due to the interaction with the injection hole 131c to make the diameter smaller, thereby reducing sulfur oxides (SOx) or fine particles in the exhaust gas. Efficient cleaning is possible by increasing the surface area capable of reacting with the particles (PM).

7 is a view showing an upper cap 122' according to another embodiment of the present invention. The upper cap 122 ′ may be formed by being recessed upward while having an overall curved shape. In this case, the upper cap 122 ′ can further reduce the pressure loss by reducing friction between the exhaust gas and the inner surface 1221 of the upper cap, and the outer surface 1222 has a curved shape and the center side is As it protrudes into, as described later, the cleaning liquid sprayed from the injection port 131c may be foamed to be small and dispersed at more various angles.

4 is a view showing a support structure of the third dispersion ring 1213 and the upper cap 122 according to an embodiment of the present invention, and FIG. 5 is a third dispersion ring 1213 according to another embodiment of the present invention. ) And the upper cap 122 is a view showing the support structure. 4 and 5, the dispersion ring and the upper cap of the dispersion unit may be supported through the wall 111 or the lower surface of the housing. As shown in FIG. 4, in an embodiment of the present invention, the support portions 1213a and 122a extend horizontally from the third dispersion ring 1213 and the upper cap 122 to be connected to the wall portion. Alternatively, as shown in FIG. 5, in another embodiment of the present invention, the support part 122b extending downward from the upper cap 122 is connected to the third dispersion ring 1213, and downward from the third dispersion ring 1213. The multi-dispersing means 12 may be connected to and supported by the lower surface of the housing by connecting the support part 1213b extending to the second dispersing ring.

6 is a view showing the flow of exhaust gas passing through the multi-dispersing means 12 according to an embodiment of the present invention. Referring to FIG. 6, as described above, the exhaust gas introduced from the gas inlet 112 proceeds through the dispersion unit 121, while the gas inlet 112, the first dispersion ring 1211, and the first dispersion It is distributed to the outer portion of the housing through a spaced apart space between the ring 1211 and the second dispersion ring 1212 and the second dispersion ring 1212 and the third dispersion ring 1213. Some of the exhaust gas rises through the central part of the housing while passing through the hollow part of each dispersion ring, but the rise is blocked by the upper cap and flows out to the outer part. Instead of distributing the exhaust gas to the outer part of the housing through a specific part, it is distributed in all directions through the distribution ring and the gas inlet 112, the distribution ring and the upper cap 122, and several spaced spaces between each distribution ring. Bar, as shown in FIG. 7, it does not flow by being focused on the outermost part of the housing, and is uniformly dispersed in the outer part, so that cleaning efficiency can be improved and pressure loss can be reduced in subsequent mixing and cleaning processes.

In addition, since a plurality of dispersion rings 1211, 1212, and 1213 are spaced apart from each other, it is possible to reduce the speed of exhaust gas while limiting the generation of back pressure. If the exhaust gas flowing into the exhaust gas treatment device 1 is too fast, normal cleaning is impossible, and when negative pressure is generated by the internal structure, the cleaning efficiency is greatly reduced, so the inflow rate of the exhaust gas is lowered, but pressure loss. It is necessary to minimize According to the present invention, as the plurality of dispersion rings included in the dispersion unit 121 decrease toward an upper portion, exhaust gas can be dispersed to the outer portion and at the same time reduced. In addition, in this process, since the plurality of dispersion rings are sequentially reduced as described above, the generation of negative pressure or pressure loss due to the deceleration of the incoming exhaust gas can be minimized.

However, the scope of the rights of the multi-dispersing means 12 according to the present invention is not limited to the shape of the upper cap 122 and the number of dispersion rings provided in the dispersion unit 121, and the upper cap 122 is effectively centered. Blocking the exhaust gas rising through the portion, the exhaust gas escapes to the portion spaced between each dispersion ring and evenly distributed to the outer portion of the housing 11, the scope of the present invention will be affected. I can.

Through the above configurations, the multiple dispersing means 12 according to the present invention evenly distributes the flow of the exhaust gas vertically introduced through the gas inlet 112 to the outer portion of the housing, while minimizing the occurrence of negative pressure and pressure loss. By sequentially reducing exhaust gas, it is possible to provide an exhaust gas treatment apparatus 1 having excellent cleaning efficiency and low pressure loss.

Figure 8 is a perspective view showing a first multi-injection means 13 according to an embodiment of the present invention, Figure 9 is a cross-sectional view showing the first multi-injection means 13 according to an embodiment of the present invention, Figure 10 is the present invention A plan view showing the first spraying means 131 according to an embodiment of the present invention, FIG. 11 is a plan view showing the second spraying means 132 according to an embodiment of the present invention. 8 to 11, the first multiple injection means 13 is located above the multiple dispersion means 12, and a plurality of injection means are arranged vertically.

Referring to FIG. 9, the multiple spraying means 13 may include a first spraying means 131, a second spraying means 132 and a third spraying means 133.

Referring to FIG. 10, the first spraying means 131 includes a rod-shaped spraying body 131a, a plurality of spraying platforms 131b branched at regular intervals from the spraying body 131a, and each of the spraying It may include a plurality of injection holes (131c) formed at regular intervals on the base (131b).

The spray body 131a is a supply pipe for supplying a cleaning liquid from the outside, and is coupled to the wall part 111 of the housing 11.

The injection table 131b is branched from the injection body 131a to inject a cleaning liquid into a wider space, and is disposed to be displaced from the injection table 132b of the second injection unit 132 to contact the exhaust gas. The area can be maximized. In addition, it can prevent the emission of harmful substances into the atmosphere by removing the blind spot of exhaust gas.

A plurality of the injection holes 131c are formed at a predetermined position of the injection table 131b to inject a mixture of a cleaning liquid and compressed air. The injection hole 131c may preferably spray a cleaning liquid or a mixture of cleaning liquid and compressed air centering on the vertical downward direction, but in another embodiment of the present invention, the cleaning liquid can be sprayed centering on a non-vertical direction. have. In addition, in another embodiment of the present invention, the cleaning liquid may be sprayed centering on a direction other than vertically upward or vertically, and in another embodiment of the present invention, the injection hole 131c is provided so as to be rotatable. The direction and angle of spraying can be changed. This will be described later.

Referring to FIG. 11, the second spraying means 132 also includes a spraying body 132a, a spraying table 132b, and a spraying hole 132c, but as described above, each spraying platform is arranged to be shifted. With this configuration, the contact area between the cleaning liquid injected by each injection means and the exhaust gas is maximized, so that the neutralization reaction of sulfur oxide (SOx) and the coagulation reaction of PM can be effectively generated.

In addition, the first injection means 131 and the second injection means 132 may be selectively operated according to the operating state of the engine (E) or the boiler (B). In this case, a control unit 134 is further included for the selective injection, and the injection can be controlled flexibly according to the driving state of the engine or the boiler.

In general, the engine (E) used in ships, the operation rate is always changed, such as when the ship accelerates or decels, operates a drill for subsea drilling, or the amount of power system used increases. In addition, boiler (B) is also rarely used in hot summer, while in cold winter, it is often used for maintaining body temperature of crew members and controlling the temperature of cargo, and the amount of operation varies depending on the time. In this way, the operating state of the engine E or the boiler B continuously changes, which means that the combustion amount of the fuel changes. And when the amount of combustion of the fuel changes, the amount of exhaust gas generated by combustion is also different. When the amount of exhaust gas is changed in this way, the amount of harmful substances such as sulfur oxides (SOx) and PM is also changed.

However, even if the exhaust gas emission is reduced, if the injection amount of the cleaning liquid is constant, unnecessary cleaning liquid is sprayed. In order to spray the cleaning liquid, the pump must be operated, but since the pump is operated by electric power, unnecessary injection means waste of unnecessary power. In addition, unlike the case of spraying the cleaning liquid using sea water, which is weakly basic with a pH of about 8.3, when making the cleaning liquid using fresh water, an alkaline additive must be added, but when unnecessary cleaning liquid is sprayed, the alkaline additive is also wasted. Therefore, there is a need to adjust the injection amount of the cleaning liquid in response to the emission of exhaust gas that varies depending on the operating state of the engine (E) or the boiler (B).

The multi-injection means 13 according to the present invention selectively operates the first injection means 131 and the second injection means 132 according to the operation rate of the engine (E) or the boiler (B) to inject a cleaning solution. The same problem can be solved. With this configuration, when exhaust gas discharge is small, only some of the injection means are operated to inject the cleaning liquid, thereby preventing waste of power for operating the pump and saving alkaline additives.

In addition, the multiple spraying means 13 further includes a third spraying means 133 above the first spraying means 131 and the second spraying means 132 to efficiently clean the harmful substances in the exhaust gas. .

At this time, similar to the relationship between the first spraying means 131 and the second spraying means 132, the third spraying means 133 is arranged to be alternately disposed with the second spraying means 132 to enlarge the contact area between the cleaning liquid and the exhaust gas. Accordingly, it is possible to more effectively induce the neutralization reaction of sulfur oxide (SOx) and the aggregation of PM.

In addition, the third injection means 133 is also selectively operated in response to the emission of exhaust gas that varies depending on the operation rate of the engine (E) or the boiler (B) to prevent waste of power from the pump for supplying the cleaning liquid, and use an alkaline additive. You can save.

The first spraying means 131, the second spraying means 132, and the third spraying means 133 spray a two-fluid including compressed air as well as a cleaning solution composed of seawater or fresh water, so that they are sprayed more quickly and widely. Is reached, thereby increasing the contact time and the contact area between the sulfur oxide (SOx) and the cleaning solution, so that the neutralization reaction can occur smoothly. In addition, the cooling action by compressed air can also occur more effectively.

12 is a view showing the upper cap 122 and the injection hole (131c) according to an embodiment of the present invention, Figure 13 is the upper cap 122 and the injection hole (131c') according to another embodiment of the present invention It is a diagram showing. 12 and 13, the upper cap 122 is located adjacent to the lower side of the first multi-injection means 13, and foams the cleaning liquid sprayed from the injection port 131c to make the diameter smaller. In this way, the surface area capable of reacting with sulfur oxides (SOx) or fine particles (PM) in the exhaust gas is increased, thereby enabling efficient cleaning. In the case of a conventional injection port, a mixture of cleaning liquid and compressed air is injected at high pressure, and at this time, not all cleaning liquids can absorb pollutants in exhaust gas. The upper cap 122 of the present invention is located near the spray nozzle where the cleaning liquid is sprayed to foam the sprayed cleaning liquid, thereby increasing the surface area of the sprayed droplets and diversifying the direction of travel to further reduce pollutants in the exhaust gas. Make it possible to collect efficiently.

In detail, the upper cap 122 may be provided adjacent to the injection hole 131c, and may be provided to be located at a central portion of the housing 11. Accordingly, the washing liquid sprayed from the upper side collides with the outer surface 1221, and the outer surface 1221 has a shape of the upper narrow light that expands toward the bottom while having a certain inclination, so that the washing liquid is applied to the collision. By foaming, it is possible to increase the surface area of the droplets and to diversify the direction of travel, so that pollutants in the exhaust gas can be more efficiently collected.

In a preferred embodiment of the present invention, the injection hole 131c may be provided so as to spray the cleaning solution vertically downward. Typically, when the cleaning liquid is sprayed from the spray nozzle provided in the spray hole, the cleaning liquid is sprayed radially. As shown in FIG. 12, the spray hole 131c is vertically downward so that the droplets of the cleaning liquid having a smaller diameter due to foaming are evenly distributed throughout. It may be provided to spray the cleaning liquid around the.

In another embodiment of the present invention, the injection hole 131c' may be provided to spray the cleaning liquid centering on a direction other than vertically downward, as shown in FIG. 13. The injection hole 131c' is preferably provided to spray the cleaning liquid toward the outside of the upper cap 122, and the upper cap 122 is relatively distant by foaming the cleaning liquid sprayed from the injection hole 131c'. Foamed cleaning liquid droplets reach up to the zone, which can promote smooth mixing of the exhaust gas and cleaning liquid.

In another embodiment of the present invention, the injection hole 131c is provided so as to be rotatable so that the spray angle of the cleaning liquid may be adjusted to adjust the distance through which the foamed cleaning liquid droplet can proceed.

14 is a view showing the upper cap 122' and the injection hole 131c according to another embodiment of the present invention, and FIG. 15 is a view showing the upper cap 122' and the injection hole according to another embodiment of the present invention. It is a figure showing (131c'). Referring to FIGS. 14 and 15, the upper cap 122 ′ may be formed by being recessed upward while having an overall curved shape. In this case, the outer surface 1222 ′ of the upper cap 122 ′ has a curved shape and the center side protrudes upward.

Accordingly, when the cleaning liquid is sprayed vertically downward from the injection port 161c and the cleaning liquid is sprayed in a direction other than vertically downward, preferably toward the outside of the upper cap 122' (161c'), the center As the inclination of the outer surface 1222' changes from to the outer surface, the angle of reflection of the falling washing liquid after colliding with the outer surface 1222' is diversified. Dispersion at more various angles can promote mixing of exhaust gas and cleaning liquid.

16 is a perspective view of a switching means 14 and a multi-diffusion means 15 according to an embodiment of the present invention, and FIG. 17 is a conversion means 14 and a multi-diffusion means 15 according to an embodiment of the present invention. It is a cross-sectional view of. Referring to FIGS. 16 and 17 below, the switching means 14 primarily converges and re-rises the rising exhaust gas to a central portion, and collects and discharges the washing liquid falling from the top to the outside.

The cleaning liquid is sprayed by the second multi-injection means 16 to be described later in order to coagulate with pollutants in the exhaust gas, and the cleaning liquid falls by gravity. The falling cleaning liquid is in the opposite direction to the rising exhaust gas, causing a pressure loss of the exhaust gas.If the cleaning liquid is small, the pressure loss decreases, but the purification of pollutants in the exhaust gas may be insufficient, and the amount of cleaning liquid is large. In this case, mixing of the exhaust gas of the cleaning liquid and the cleaning liquid can be promoted, but the pressure loss increases. Accordingly, it is important to properly maintain the amount of cleaning liquid in the area within the scrubber through which the exhaust gas passes.

In one embodiment of the present invention, a first multi-injection means 13 is provided below the switching means 14. For exhaust gas rising from the lower part of the switching means, the first multi-injection means 13 Excellent cleaning efficiency of exhaust gas by purifying harmful substances such as sulfur oxides in the exhaust gas through the sprayed cleaning liquid, and draining the cleaning water sprayed from the second multi-injection means (16) to the outside through the conversion means (14) At the same time, it is possible to prevent excessive increase in pressure loss. In addition, by converging and re-elevating the rising exhaust gas to the central part, the exhaust gas proceeds evenly in the scrubber once again while passing through the multiple diffusion means (15) and the second multiple injection means (16) to be described later, and is mixed with the cleaning solution. This makes it possible to purify the pollutants in the exhaust gas. The switching means 14 may include a blocking part 141, a discharge part 143, and a drain part 145.

The blocking part 141 may be provided to converge exhaust gas rising from the lower side toward the center and at the same time block the washing liquid falling from the upper side from falling downward. The blocking part 141 may have a shape of an upper narrow light in order to converge the exhaust gas flowing upwardly in the gaseous phase toward the center and discharge or drain the cleaning liquid downwardly flowing in the liquid phase to the outside. Preferably, as shown in FIG. 12, it has a shape that has an opening of a predetermined size in the center and expands toward the outside at a constant inclination.

The discharge part 143 may be provided so that the exhaust gas converged by the blocking part 141 passes through the switching means 14 and is discharged through the discharge part 143 and rises. The discharge part 143 is formed extending upward from the upper side of the blocking part 141 and has a function of a passage for raising the exhaust gas guided to one side by the blocking part 141, and for this purpose, a hollow cylinder It can be configured in the shape of.

After the drain part 145 is separated from the exhaust gas and falls, it is no longer able to descend by the switching means 14 and may be provided to discharge the cleaning liquid accumulated on the blocking part 141. The drain part 145 is a place where the cleaning liquid descended from washing harmful substances is discharged to the outside of the housing 11, and is formed to extend a predetermined length on one side of the wall part 111, and has a hollow inside for discharging the cleaning liquid. It can be formed in a cylindrical shape. When installed on a ship, even if it is provided on one side of the wall 111 due to the rolling phenomenon in which the hull is tilted left and right and the pitching phenomenon inclined back and forth, smooth discharge of the washing liquid accumulated on one side according to the inclination of the ship is possible even if it is provided on one side of the wall part 111 Do.

Referring to FIGS. 16 and 17, the multi-diffusion means 15 is relatively centrally concentrated to evenly diffuse the exhaust gas rising from the bottom and mix it with the cleaning liquid, thereby promoting purification of harmful substances contained in the exhaust gas. . The multiple diffusion means 15 may include at least one diffusion layer to evenly diffuse the exhaust gas rising from the bottom. In a preferred embodiment of the present invention, the multi-diffusion means 15 includes a first layer 151 and a second layer 153, and each of the layers 151 and 153 has a downward inclined or curved center. It may include at least one diffuser 1511 having a cross section formed in a shape.

The first layer 151 is provided at a predetermined distance upward from the discharge part 143 and is provided to diffuse exhaust gas discharged through the discharge part 143 and rising to both sides. The first layer 151 may be configured by arranging a plurality of diffusers 1511 to be described later in a state spaced apart at a predetermined interval.

The second layer 153 may be provided to be spaced a predetermined distance upward from the first layer 151. The first layer 151 may be configured by arranging a plurality of diffusers 1511 to be described later in a state that is spaced apart at a predetermined interval, and the entire width is formed to be wider than the first layer 151 to be relatively The exhaust gas concentrated and rising to the center may be diffused widely while passing through the first layer 151 and the second layer 153. The second layer 153 may preferably be formed so as to alternate with the first layer 151.

In detail, as can be seen in FIG. 17, each layer may be alternately arranged to cover the gap between the diffusion bodies of adjacent layers. In a preferred embodiment of the present invention, the second layer 153 is the first layer ( It may be alternately arranged to cover the gap between the diffusion bodies 1511 to be described later of 151. As the first layer 151 and the second layer 153 are arranged alternately, the rising exhaust gas is diffused multiple times so that it can evenly spread and rise in the housing 11, and a cleaning liquid that falls from the top between the gaps It may be prevented from proceeding downward through the discharge part 143.

In addition, in an embodiment of the present invention, when the diffusion bodies 1511 constituting each of the layers 151 and 153 are arranged, a predetermined distance w1 is formed, and the diffusion body 1511 is formed from one end to the other end. A width w2 of up to is formed, and the width w2 may be formed or arranged to be larger than the spacing w1 between the diffusers. The washing liquid falling from the top is blocked by the diffusion body 1511, but can continue to fall through the gap (w1), under which the diffusion body 1511 having a width (w2) greater than the gap (w1). ) Is arranged to block the cleaning liquid. In an embodiment of the present invention, the width w2 of the diffuser 1511 arranged on the first layer 151 is provided so that the width w2 is larger than the interval w1 arranged on the second layer 153, so that the cleaning liquid is lowered or discharged. It prevents falling to the part 143.

Further, in an embodiment of the present invention, there is an arrangement of the diffusers 1511 constituting each layer, and the distance from one end of the diffuser arranged at one end to the one end of the diffuser arranged at the other end is It can be defined as the width of the layer (w3). Preferably, the width w3 of the uppermost layer is formed to be larger than the width of the discharge part 143, so that the falling cleaning liquid falls through the discharge part 143 and does not increase the pressure loss, and the diffusion body 1511 to be described later It can be blocked by and drained or drained. In a preferred embodiment of the present invention, since the width w3 of the second layer 153 corresponding to the uppermost layer is formed to be larger than the diameter of the discharge part 143, the falling cleaning liquid falls through the discharge part 143 Prevents causing pressure loss.

18 is a perspective view showing a diffuser 1511 according to a preferred embodiment of the present invention, and FIG. 19 is a perspective view showing a diffuser 151' according to another embodiment of the present invention. Referring to FIGS. 18 and 19, the diffuser 1511 according to an exemplary embodiment of the present invention has a cross section formed in a shape in which the center is inclined downward, and the cross section may be provided to extend substantially uniformly. . Since the diffuser 1511 has a downwardly inclined or protruding cross section, it is possible to induce the exhaust gas rising from the lower side to bypass and rise to both sides of the diffuser, and a plurality of such diffusers 1511 are arranged. It is possible to promote mixing with the cleaning liquid by allowing the exhaust gas that rises relatively to the center to spread evenly and rise in the interior space of the housing 11. The diffuser 1511 may include a bone 1511a with a center bent downward, and includes a first surface 15111 and a second surface 15113 connected from the valley 151a at a predetermined angle. can do.

A washing liquid that falls in the valley 1511a may accumulate. Since the diffuser 1511 extends with an approximately constant cross section, the cleaning liquid accumulated in the valley 1511a may flow or flow in an extended direction, and a drain separately provided at at least one end of the extended diffuser 1511 is provided. It can be discharged or collected through means for.

The first surface 15111 may be formed to extend downwardly inclined toward the valley 1511a. In a preferred embodiment of the present invention, it may extend from one end to the valley 1511a at a constant inclination.

Like the first surface 15111, the second surface 15113 may be formed to extend downwardly inclined toward the valley 1511a. In a preferred embodiment of the present invention, it may extend from one end to the valley 1511a at a constant inclination.

The first and second surfaces 15111 and 15113 are connected to each other by forming a valley 1511a at the center of the diffuser 1511, and thus may have a predetermined inclination θ with respect to a horizontal plane. In a preferred embodiment of the present invention, the inclination of the first surface 15111 with respect to the horizontal plane and the inclination of the second surface 15113 with respect to the horizontal plane may be the same. Accordingly, the diffuser 1511 may form a cross-section symmetrical about the valley 1511a, that is, a bent portion. The angle of inclination of the first and second surfaces 15111 and 15113 with respect to the horizontal plane may be a predetermined angle such as 15 degrees, 30 degrees, and 45 degrees, and the exhaust gas rising from the lower side is efficiently diffused. It is fine if it can block and collect the washing liquid falling from the top.

Referring to FIG. 19, the diffuser 1511 ′ according to another embodiment of the present invention has a center protruding downward or bent, and has a cross-section formed in a curved shape, and the cross-section extends substantially uniformly. It may be provided so as to be. Since the portion bent downward of the diffuser 1511 ′ forms a curved surface, the exhaust gas flows upwardly and diffuses along the curved surface, thereby reducing friction against the surface. The diffuser 1511 ′ may also include a valley 1511a ′ with a center bent downward, and a first surface 15111 ′ and a second surface 15113 connected to the valley 151a at a predetermined angle. ') can be included.

A washing liquid falling down may accumulate in the valleys 1511a'. Since the diffusion body 1511 ′ extends with an approximately constant cross section, the cleaning liquid accumulated in the valley 1511a ′ may flow or flow in an extended direction, and is provided separately at at least one end of the extended diffusion body 1511 ′. It may be discharged or collected through a means for drainage.

The first and second surfaces 15111 ′ and 15113 ′ may be connected to each other while substantially forming one curved surface. Accordingly, while the diffuser 1511' has a streamlined curved surface, the exhaust gas rising from the bottom can be efficiently diffused to both sides.

20 is a perspective view of a second multi-injection means 16 according to an embodiment of the present invention, and FIG. 21 is a cross-sectional view of the second multi-injection means 16 according to an embodiment of the present invention. The second multiple injection means 16 is located above the switching means 14 and the multiple diffusion means 15, and a plurality of injection means are arranged vertically.

20 and 21, the second multi-injection means 16 is similar to the first multi-injection means 13 described above, the first injection means 161, the second injection means 162, and the third injection. The means 163 may be included, and may be configured substantially the same to facilitate mixing of the cleaning liquid and the exhaust gas as in the first multi-injection means 13.

In detail, the first spraying means 161 includes a rod-shaped spraying body 161a, a plurality of spraying platforms 161b branched at regular intervals from the spraying body 161a, and each of the spraying platforms 161b. ) May include a plurality of jetting holes 161c formed at regular intervals, and the jetting body 161a is a supply pipe for supplying a cleaning solution from the outside, and is coupled to the wall portion 111 of the housing 11.

The injection table 161b is branched from the injection body 161a to inject a cleaning liquid into a wider space, and is disposed to be displaced from the injection table 162b of the second injection unit 162 to contact the exhaust gas. The area can be maximized. In addition, it can prevent the emission of harmful substances into the atmosphere by removing the blind spot of exhaust gas.

A plurality of the injection holes 161c are formed at a predetermined position of the injection table 161b to inject a mixture of cleaning liquid and compressed air. Like the injection port 131c of the first multi-injection means 13, the injection port 161c can spray a cleaning liquid or a mixture of cleaning liquid and compressed air, preferably vertically downward. In the embodiment, the cleaning liquid may be sprayed centered in a direction other than vertical.

Referring to Figure, the second injection means 132 and the third injection means 163 also include the injection body (162a, 163a), the injection stand (162b, 163b), the injection port (162c, 163c), but the above-described Likewise, each injection platform is arranged to be shifted. With this configuration, the contact area between the cleaning liquid injected by each injection means and the exhaust gas is maximized, so that the neutralization reaction of sulfur oxide (SOx) and the coagulation reaction of PM can be effectively generated.

In addition, the first injection means 161, the second injection means 162, and the third injection means 163 may be selectively operated according to the operating state of the engine (E) or the boiler (B). In this case, a control unit 164 may be further included for the selective injection, and the injection may be controlled flexibly according to the driving state of the engine or the boiler.

22 is a cross-sectional view showing a cross-section of the brackish water separation means 17 according to a preferred embodiment of the present invention, and FIG. 23 shows the separation of droplets or mist contained in the exhaust gas in the brackish water separation means 17. It is a drawing. 22 and 23, the radix separation means 17 is disposed above the second multi-injection means 16 in the interior of the exhaust gas treatment apparatus housing 11, and the second multi-injection means 16 This part is responsible for separating the cleaning liquid inside the exhaust gas flowing through ). The nose separation means 17 may be disposed through a method in which the edge portion is seated on a step 111c protruding inwardly from the inner wall 111 of the housing.

The brackish water separation means 17 is provided to separate, filter, and recover aerosol-type droplets or mists generated by meeting the pretreatment gas and the washing liquid, and the brackish water separation unit 171, the steam spraying unit 172 and a washing unit 173 may be included.

The brackish water separation unit 171 may be provided to separate and filter droplets or mists that are included in the exhaust gas and rise. A plurality of blades having a zigzag-shaped cross section in the vertical direction may be arranged at regular intervals. The cleaning liquid including sulfur oxide (SOx) or fine particles (PM) rises together with the exhaust gas, and is collected in the concave portion between the blades while passing through the brackish water separation unit 171, and the exhaust gas is collected in the brackish water separation unit 171 ), and then the exhaust gas and the cleaning liquid droplets or mist in the exhaust gas are separated. In addition, the specific shape of the brackish water separation unit 171 may vary depending on the design, temperature, and chemical characteristics of the exhaust gas treatment device 1.

The steam injection unit 172 is a portion disposed under the brackish water separation unit 171 and injects steam toward the brackish water separation unit 171. In one embodiment of the present invention, the steam injection unit 172 includes a rod-shaped injection body 172a, a plurality of injection platforms 172b branched side by side at predetermined intervals from the injection body 172a, and each of the It includes a plurality of injection holes 172c formed at regular intervals on the injection table 172b.

The steam injection unit 172 injects steam toward the brackish water separation unit 171 to facilitate cleaning when washing the brackish water separation unit 171, and also increases the size of droplets or mists contained in the exhaust gas to prevent harmful effects. The cleaning liquid or mist collected by the material can become a large water droplet and can be efficiently dropped to the lower portion of the housing 11 or flow down the inner wall 111 of the housing.

The washing unit 173 is a portion of the housing 11 disposed above the radix separation unit 171 and sprays a cleaning liquid toward the radix separation unit 171. 22 and 23, in one embodiment of the present invention, the washing unit 173 includes a rod-shaped spray body 173a, and a plurality of sprays branched side by side at regular intervals from the spray body 173a. It includes a stand 173b and a plurality of injection ports 173c formed at regular intervals on each of the injection stands 173b, and the cleaning liquid can be supplied to the spraying body 173a through the cleaning liquid inlet 114. have. The spraying body 173a receives the cleaning liquid and delivers it to each of the spraying tables 173b, and the spraying port 173c sprays the cleaning liquid toward the brackish water separation unit 171.

The brackish water separation unit 171 may be contaminated or clogged in the process of separating, filtering, and recovering a cleaning solution or mist in a state in which harmful substances such as PM in the pretreatment gas are collected. By allowing the part 171 to be washed with a cleaning solution, contamination and clogging of the water separation means 17 are prevented. In addition, the cleaning unit 173 increases the size of the cleaning solution or mist separated by the water separation unit 171 by spraying the cleaning solution, so that the cleaning solution or mist collecting the harmful substances becomes a large number of water, and the housing 11 Efficiently fall to the lower portion of the housing or ride down the inner wall 111 of the housing to flow down.

Based on the above-described configuration, exhaust gas generated by combustion in an engine or boiler passes through the exhaust gas treatment apparatus 1 according to the present invention, and harmful substances such as sulfur oxide (SOx) and particulate matter (PM) are removed. A process of removal and conversion into clean gas will be described with reference to FIGS. 2 and 3.

2 and 3, exhaust gas enters the housing 11 through the gas inlet 112. It meets the multi-dispersing means 12 provided on the upper side of the gas inlet 112 and spreads to the outer portion of the housing, and then, mixing with the sprayed washing liquid while passing through the first multi-dispersing means 13 is promoted, Pollutants in the exhaust gas are collected. At this time, the upper cap 122 foams the sprayed cleaning liquid to increase the surface area of the droplets to promote mixing. Thereafter, the exhaust gas is primarily converged in the switching means 14 and then rises again, and is spread evenly in the housing 11 again through the multi-diffusion means 15 and rises.

Thereafter, contaminants in the exhaust gas are collected due to the injection of the cleaning liquid from the second multi-injection means (16), the cleaning liquid falls down, the exhaust gas is purified once more, and the exhaust gas and the cleaning liquid are liquid in the water separation means (17). The enemy is separated and purified exhaust gas is discharged through the gas outlet 113.

Through the above-described configuration and process, the exhaust gas separates harmful substances such as sulfur oxide (SOx) and particulate matter (PM), becomes a clean gas, and is discharged into the atmosphere.

The detailed description above is illustrative of the present invention. In addition, the above description shows and describes preferred embodiments of the present invention, and the present invention can be used in various other combinations, modifications, and environments. That is, changes or modifications may be made within the scope of the concept of the invention disclosed in the present specification, the scope equivalent to the disclosed contents, and/or the skill or knowledge of the art. The above-described embodiments describe the best state for implementing the technical idea of the present invention, and various changes required in the specific application fields and uses of the present invention are also possible. Therefore, the detailed description of the invention is not intended to limit the invention to the disclosed embodiment. In addition, the appended claims should be construed as including other embodiments.

1: exhaust gas treatment device
11: housing 111: wall part 112: gas inlet
113: gas outlet 114: washing liquid inlet 115: washing liquid outlet
12: multiple dispersion means 121: dispersion unit
1211: first dispersion ring 1212: second dispersion ring 1213: third dispersion ring
122: upper cap 1221: inner surface 1222: outer surface
13: first multiple injection means 131: first injection means 132: second injection means
133: third injection means 134: control unit
14: conversion means
141: cut-off part 143: discharge part 145: drain part
15: multiple diffusion means 151: first layer 153: second layer
1511: diffuser 1511a: bone
15111: p. 1 15113: p. 2
16: second multiple injection means 161: first injection means 162: second injection means
163: third injection means 164: control unit
17: radix separation means
171: brackish water separation unit 172: steam injection unit 173: washing unit

Claims (16)

And a housing having a gas inlet and a gas outlet through which exhaust gas generated by combustion flows in and out, and a multi-dispersing means, a conversion means, and a multi-diffusion means,
The multi-dispersing means is provided in a state spaced apart from the gas inlet to evenly distribute the incoming exhaust gas to the outer portion of the housing, and the switching means is provided on the upper portion of the multi-dispersing means to centralize the rising exhaust gas. Partially converging and re-elevating, the multi-diffusion means is provided at a predetermined distance apart from the top of the switching means to diffuse the exhaust gas rising from the bottom.
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The method of claim 1, wherein the multi-dispersing means has a dispersing unit for dispersing rising exhaust gas to an outer portion of the housing, and a shape having a centrally recessed upward as a whole, so that the exhaust gas rising to the central portion of the housing can be blocked. Including an upper cap provided so that
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The method of claim 2, wherein the dispersing unit comprises a plurality of dispersing rings provided spaced apart from the lower end of the upper cap by a predetermined distance, and the dispersing rings are provided to be spaced apart from each other to pass exhaust gas through the dispersing rings.
The dispersion ring is characterized in that the distribution ring has a shape of an upper and lower light, and is reduced at a certain ratio from the bottom to the top to evenly distribute the exhaust gas to the outer portion of the housing.
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The apparatus according to claim 3, wherein the exhaust gas treatment apparatus further comprises a first multi-injection means provided above the multiple dispersing means and below the switching means,
The first multi-injection means comprises a plurality of injection means, characterized in that by injecting the cleaning liquid to induce smooth mixing of the cleaning liquid and the exhaust gas.
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The method of claim 4, wherein the spraying means comprises a spraying hole for spraying the cleaning liquid downward,
The upper cap is located a predetermined distance away from the injection port of the multi-injection means, and by foaming the diameter of the sprayed cleaning liquid to a small size, the surface area of the droplet is increased and the direction of travel is diversified to more efficiently collect pollutants in the exhaust gas. Characterized by being able to
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The method of claim 5, wherein the upper cap has a shape of an upper narrow light having a constant inclination and is foamed so that the droplets of the cleaning solution having a smaller diameter are evenly distributed throughout.
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The method of claim 6, wherein the injection port is provided to inject the cleaning liquid toward the outside of the upper cap so that the foamed cleaning liquid droplet reaches a relatively distant area to promote smooth mixing of the exhaust gas and the cleaning liquid.
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The method of claim 7, wherein the injection port is rotatably provided to adjust the spray angle of the cleaning liquid to control a distance through which the foamed cleaning liquid droplets can travel.
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The method of claim 5, wherein the upper cap has a curved shape as a whole and is formed and formed to be foamed to disperse the cleaning liquid droplets having a smaller diameter at various angles to promote mixing of the exhaust gas and the cleaning liquid.
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The method according to any one of claims 6 to 9, wherein the multi-diffusion means comprises a first layer and a second layer,
The first layer is provided at a predetermined distance apart from the upper side of the switching means, and the second layer is provided at a predetermined distance upward from the first layer, and the first layer is arranged alternately with the first layer.
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The method of claim 10, wherein the first layer and the second layer are arranged in a state in which a plurality of diffusers are spaced apart at a predetermined interval,
The diffusers are alternately arranged to cover the gaps between the diffusers of adjacent layers, and the diffusers are provided so that the cross section formed in an inclined or curved shape such that the center protrudes downwards is approximately uniformly extended so that the cleaning liquid falling from the upper side is Characterized in that it can be blocked
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The method of claim 11, wherein the diffusion body is formed to have a width greater than the gap between the diffusion bodies to block the cleaning liquid falling between the gaps.
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The method of claim 12, wherein the width of the second layer is formed to be larger than the diameter of the discharge portion of the switching means,
The width is a distance from one end of the diffuser arranged at one end to one end of the diffuser arranged at the other end, and blocks the falling cleaning liquid from advancing into the discharge port.
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The apparatus of claim 13, wherein the exhaust gas treatment device further comprises a second multiple injection means provided at a predetermined distance above the multiple diffusion means,
The second multi-injection means comprises a plurality of injection means, characterized in that by injecting the cleaning liquid, which is primarily purified and then spreads evenly to induce the rising exhaust gas to be secondaryly mixed with the cleaning liquid.
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The apparatus of claim 14, wherein the exhaust gas treatment device further comprises a radix separation means provided above the second multiple injection means and spaced apart by a predetermined distance,
Wherein the brackish water separation means separates the cleaning liquid in the exhaust gas rising through the second multi-injection means and extracts pollutants from the exhaust gas.
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance. The radix separation unit according to claim 15, wherein the radix separation means comprises a radix separation unit configured in a form in which a plurality of blades having a vertical cross section in a zigzag shape are arranged at regular intervals,
A steam spraying unit disposed below the brackish water separation unit and injecting steam upwardly toward the brackish water separation unit; and
It is disposed on the top of the brackish-water separation unit and sprays the cleaning liquid toward the brackish-water separation unit to prevent clogging of the brackish-water separation unit and promote the dropping of the cleaning solution.
Exhaust gas treatment system with reduced pressure loss and improved diffusion and mixing performance.

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