WO2014014193A1 - Appareil de purification des gaz d'échappement et déflecteur associé - Google Patents

Appareil de purification des gaz d'échappement et déflecteur associé Download PDF

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Publication number
WO2014014193A1
WO2014014193A1 PCT/KR2013/003945 KR2013003945W WO2014014193A1 WO 2014014193 A1 WO2014014193 A1 WO 2014014193A1 KR 2013003945 W KR2013003945 W KR 2013003945W WO 2014014193 A1 WO2014014193 A1 WO 2014014193A1
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WO
WIPO (PCT)
Prior art keywords
baffle
exhaust gas
foreign matter
duct
curvature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2013/003945
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English (en)
Korean (ko)
Inventor
이중의
최병권
김동민
정효태
최병학
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
METALGENTECH CO LTD
Industry Academy Cooperation Foundation of Gangneung Wonju National University
Original Assignee
METALGENTECH CO LTD
Industry Academy Cooperation Foundation of Gangneung Wonju National University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by METALGENTECH CO LTD, Industry Academy Cooperation Foundation of Gangneung Wonju National University filed Critical METALGENTECH CO LTD
Priority to CN201380033275.9A priority Critical patent/CN104470616B/zh
Publication of WO2014014193A1 publication Critical patent/WO2014014193A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/06—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by reversal of direction of flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/037—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of inertial or centrifugal separators, e.g. of cyclone type, optionally combined or associated with agglomerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F01N3/2066—Selective catalytic reduction [SCR]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to an exhaust gas purifying apparatus and a baffle thereof, and more particularly, to remove foreign substances such as ashes and suspended solids generated by the use of fossil fuel, such as selective catalytic reduction. Emission gas purification apparatus and baffles thereof which can be used in the present invention.
  • combustion facilities such as thermal power plants, incinerators and industrial boilers generate energy by burning fossil fuels such as coal, heavy oil, and natural gas.
  • fossil fuels such as coal, heavy oil, and natural gas.
  • a large amount of foreign matters such as ashes in the form of powder or solids generated after combustion, fuel materials in unburned state, non-combustible materials, nitrogen compounds, and carbon compounds are included.
  • the gas containing these foreign substances is discharged to the atmosphere may cause air pollution, and in some cases may be adversely affected even in the facility that is connected to the combustion facility to process the gas generated during combustion.
  • a flue gas treatment technology that harmlessly handles harmful substances such as NOx, Co, Doxine, etc. generated in various combustion facilities, these foreign substances get stuck in the catalyst layer, thereby improving the function and characteristics of the catalyst layer. Significantly degraded. Therefore, there is a need for a technique for separating and removing foreign matter contained in the gas generated by combustion.
  • the idea of the present invention is to guide the discharge gas containing the foreign matter toward the foreign matter accommodating portion to improve the foreign matter separation performance, and to install the first baffle and the second baffle to induce a sudden change in the direction of the air flow and the discharge gas and
  • the present invention provides an exhaust gas purifying apparatus and a baffle thereof, which promote separation of foreign substances and accelerate the change of the direction of the air flow in the discharge direction by using the air flow guide groove.
  • the first duct unit for guiding the exhaust gas containing foreign matter in the first direction;
  • a foreign material accommodating part formed on a bottom surface of the first duct part and accommodating foreign matter contained in the discharge gas;
  • a second duct part communicating with a purge gas discharge port formed at a side surface of the first duct part, and guiding the purge gas from which foreign matter is separated in a second direction;
  • a first baffle for inducing a rapid change in the airflow direction of the exhaust gas introduced into the first duct part in a second direction toward the second duct part, wherein the first baffle protrudes into the first duct part. It may be installed so that at least one rounded surface is formed.
  • the first baffle may be protruded inclined downward in the direction of the foreign matter receiving portion, and the rear end may be fixed above the purge gas discharge port.
  • the first baffle is a complex curved body having a first radius of curvature when viewed from the front and convex downward and a second radius of curvature when viewed from the side. Can be.
  • the first baffle when viewed from the front, has a first convex radius of curvature and a third curvature radius of convex, repeated in a wave form, and convex upward when viewed from the side. It may be a complex waveform curvature having a second radius of curvature.
  • the first baffle may be formed in the air flow guide groove for inducing the air flow of the exhaust gas at the tip.
  • the air flow guide groove for inducing the air flow of the exhaust gas may be formed at the tip of the lower convex portion of the first baffle.
  • an air flow guide groove for inducing air flow of the exhaust gas may be formed at the tip of the convex portion of the first baffle.
  • the air flow guide groove may be a semi-circular shape as a whole.
  • the air flow guide groove and the leading edge may be rounded.
  • the first baffle may have a shape in which the tip thickness becomes thinner toward the front end and the rear end thickness becomes thicker toward the rear end.
  • the exhaust gas purifying apparatus may further include a second baffle having a front end protruding obliquely upward in the direction of the first duct and a rear end fixed below the purge gas outlet. have.
  • the second baffle may be a curved body having a fourth radius of curvature so as to be convex downward when viewed from the side.
  • the second baffle may be a curved body having a fifth radius of curvature so as to be convex upward when viewed from the side.
  • the foreign matter receiving portion is a funnel-shaped hopper concave down, and an induction curved portion having a sixth radius of curvature is formed between the first duct portion and the foreign matter receiving portion to be convex downward. It may be.
  • the foreign matter receiving portion is a funnel-shaped hopper concave down, the induction curved portion having a seventh radius of curvature to be convex upward between the first duct portion and the foreign matter receiving portion is formed.
  • the foreign matter receiving portion may be a funnel-shaped hopper concave down, and an induction plane portion having a surface thereof is formed between the first duct portion and the foreign matter receiving portion.
  • an air flow guide groove for inducing the air flow of the exhaust gas may be formed at the tip of the second baffle.
  • the baffle according to the spirit of the present invention for solving the above problems, the exhaust gas containing the foreign matter guided in the first direction by the first duct part is introduced into the second duct part via the foreign matter receiving portion is received foreign matter. It may be installed to protrude into the first duct portion so that at least one or more rounded surface may be formed to reduce the sudden change of air flow.
  • the exhaust gas purifying apparatus for solving the above problems, the first duct unit for guiding the discharge gas containing foreign matter in the first direction; A foreign material accommodating part formed on a bottom surface of the first duct part and accommodating foreign matter contained in the discharge gas; A second duct part communicating with a purge gas discharge port formed at a side surface of the first duct part, and guiding the purge gas from which foreign matter is separated in a second direction; And a first baffle for inducing the air flow direction of the exhaust gas introduced into the first duct part to be changed rapidly in a second direction toward the second duct part.
  • the guide surface may be formed to guide in a direction different from the first direction so that the direction changes abruptly.
  • Exhaust gas purification apparatus and its baffle according to the spirit of the present invention can improve the separation performance to separate the foreign matter contained in the exhaust gas to the foreign matter receiving portion through the rapid change in the direction of the air flow of the exhaust gas.
  • FIG. 1 is a perspective view illustrating an exhaust gas purifying apparatus and a baffle thereof according to some embodiments of the inventive concepts.
  • FIG. 2 is a side view of FIG. 1.
  • FIG. 3 is a perspective view illustrating an exhaust gas purifying apparatus and a baffle thereof according to some embodiments of the inventive concepts.
  • FIG. 4 is a side view of FIG. 3.
  • FIG. 5 is a perspective view illustrating an exhaust gas purifying apparatus and a baffle thereof according to some embodiments of the inventive concepts.
  • FIG. 6 is a plan view illustrating the first baffle of FIG. 5.
  • FIG. 7 is a perspective view illustrating an exhaust gas purifying apparatus and a baffle thereof according to some embodiments of the inventive concepts.
  • FIG. 8 is a plan view illustrating the first baffle of FIG. 7.
  • FIG. 9 is a perspective view illustrating an exhaust gas purifying apparatus and a baffle thereof according to some embodiments of the inventive concepts.
  • FIG. 10 is a plan view illustrating the first baffle of FIG. 9.
  • FIG. 11 is a perspective view illustrating an exhaust gas purifying apparatus and a baffle thereof according to some embodiments of the inventive concepts.
  • FIG. 12 is a plan view illustrating the first baffle of FIG. 11.
  • FIG. 13 is a perspective view illustrating an exhaust gas purifying apparatus and a baffle thereof according to some embodiments of the inventive concepts.
  • FIG. 14 is a perspective view illustrating an exhaust gas purifying apparatus and a baffle thereof according to some embodiments of the inventive concepts.
  • FIG. 15 is a perspective view illustrating a first baffle of an exhaust gas purifying apparatus according to some embodiments of the inventive concepts.
  • FIG. 16 is a perspective view illustrating a first baffle of an exhaust gas purifying apparatus according to some embodiments of the inventive concepts.
  • FIG. 17 is a perspective view illustrating a first baffle of an exhaust gas purifying apparatus according to some embodiments of the inventive concepts.
  • FIG. 18 is a perspective view illustrating an exhaust gas purifying apparatus and a baffle thereof according to some embodiments of the inventive concepts.
  • FIG. 19 is a side view of FIG. 18.
  • FIG. 20 is a diagram illustrating a transfer simulation result of FIG. 19.
  • 21 is a computer simulation result of some embodiments of the inventive concept.
  • FIG. 22 is a perspective view illustrating an exhaust gas purifying apparatus and a baffle thereof according to some embodiments of the inventive concepts.
  • FIG. 23 is a side view of FIG. 21.
  • FIG. 24 is a diagram showing the results of the transfer simulation in FIG. 23.
  • 25 is a perspective view illustrating an exhaust gas purifying apparatus and a baffle thereof according to some embodiments of the inventive concepts.
  • FIG. 26 is a side view of FIG. 25.
  • FIG. 27 is a diagram showing a transfer simulation result of FIG. 26.
  • 28 to 30 are perspective views illustrating an example of a second baffle according to some embodiments of the inventive concepts.
  • exhaust gas purification device 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1200: exhaust gas purification device
  • R1 first radius of curvature
  • R2 second radius of curvature
  • R3 third radius of curvature
  • F1, F2, F3, F4 air flow guide groove
  • T2 Rear end thickness B21, B22, B23: 2nd baffle
  • R4 fourth radius of curvature
  • R5 fifth radius of curvature
  • R6 sixth radius of curvature
  • R7 seventh radius of curvature
  • first, second, etc. are used herein to describe various members, parts, regions, layers, and / or parts, these members, parts, regions, layers, and / or parts are defined by these terms. It is obvious that not. These terms are only used to distinguish one member, part, region, layer or portion from another region, layer or portion. Thus, the first member, part, region, layer or portion, which will be discussed below, may refer to the second member, component, region, layer or portion without departing from the teachings of the present invention.
  • top or “above” and “bottom” or “bottom” may be used herein to describe the relationship of certain elements to other elements as illustrated in the figures. It may be understood that relative terms are intended to include other directions of the device in addition to the direction depicted in the figures. For example, if the device is turned over in the figures, elements depicted as present on the face of the top of the other elements are oriented on the face of the bottom of the other elements. Thus, the exemplary term “top” may include both “bottom” and “top” directions depending on the particular direction of the figure. If the device faces in the other direction (rotated 90 degrees relative to the other direction), the relative descriptions used herein can be interpreted accordingly.
  • FIG. 1 is a perspective view illustrating an exhaust gas purifying apparatus 100 and a baffle B11 and B21 thereof according to some embodiments of the inventive concept
  • FIG. 2 is a side view of FIG. 1.
  • the exhaust gas purifying apparatus 100 may include a first duct part 10, a foreign substance accommodating part 30,
  • the second duct 20 may include a first baffle B11 and a second baffle B21.
  • the first duct part 10 may be formed of ash or ash in the form of powder or solids generated after combustion, fuel materials in an unburned state, incombustible non-combustible substances, nitrogen compounds, carbon bonds, or the like ( Inducing the discharge gas G1 including 1) in a first direction (downward in FIG. 1), the illustrated first duct part 10 may be formed in various shapes such as a cylinder, pipe, etc. Can be.
  • the foreign matter accommodating part 30 is formed on the bottom surface of the first duct part 10 to accommodate the foreign matter 1 contained in the discharge gas G1 guided and dropped in the first direction. It is.
  • the foreign substance accommodating part 30 may be a funnel-shaped hopper recessed downward so that the foreign substances 1 are stacked downward.
  • the second duct part 20 communicates with the purification gas discharge port H formed at the side surface of the first duct part 10, and the purification gas G2 in which the foreign matter 1 is separated and purified.
  • the illustrated second duct portion 20 may be formed in a variety of shapes, such as a cylindrical or pipe, in addition to a rectangular cylindrical shape.
  • the second direction may be a direction flowing into a processing apparatus for treating harmful components of the exhaust gas before finally discharging the discharge gas introduced through the first duct part 10 to the outside.
  • the treatment apparatus may be a selective catalytic reduction facility, and the exhaust gas introduced in the second direction may be directed to a catalyst layer constituting the selective catalytic reduction facility.
  • an induction curved part 40 having a sixth radius of curvature R6 may be formed between the first duct part 10 and the foreign substance accommodating part 30.
  • the first baffle B11 has a discharge gas G1 of the first duct part 10, and the foreign material 1 passes through the receiving part 30. 20 may be installed to protrude to the inside of the first duct part 10 so as to be redirected, and the first baffle B11 may have at least one rounded surface to promote the turning of the exhaust gas G1. (S) may be formed.
  • the second baffle B21 has a front end protruding obliquely upward in the direction of the first duct part 10, and a rear end of the second baffle B21 is fixed below the purge gas outlet H. Can be configured.
  • the first baffle B11 may induce the abrupt change of the direction of the discharge gas G1 introduced into the first direction through the first duct part 10 toward the second duct part 20. That is, the exhaust gas G1 introduced through the first duct part 10 flows in the first direction (downward in FIGS. 1 and 2), and then the direction of the airflow is changed by the first baffle B11 in the second duct. It may be suddenly switched to the second direction which is the direction to the part 20. When such a sudden change of direction of the air flow occurs, the foreign matter 1 having a predetermined mass contained in the exhaust gas G1 tends to continue to move in the first direction by inertia (or centrifugal force).
  • the second duct part 20 may be used as the second duct part 20. Only the purified gas G2 purified by removing the foreign matter 1 may be discharged to the outside.
  • the first baffle B11 may be formed of a compound curved body having a first radius of curvature R1 and a second radius of curvature R2 as shown in FIGS. .
  • the first baffle B11 has a first radius of curvature so as to be convex downward when viewed from the front (when an observer views from the first duct portion 10 to the second duct portion 20 in FIG. 1).
  • It may be a compound curved body having R1 and having a second radius of curvature R2 so as to be convex upward when viewed from the side as shown in FIG. 2. Due to this curved structure, the exhaust gas reaching the upper portion of the first baffle B11 moves along the curved surface of the first baffle B11, thereby making it easier to switch to the second direction.
  • the second baffle B21 may further change the direction of at least a part of the airflow turned toward the second duct part 20 by the first baffle B11. At least a part of the airflow guided by the first baffle B11 is hit by the second baffle B21 while moving to the second duct part 20, and thus, the movement path is changed again and the second duct part 20 is changed. It can be seen that the rotation in the counterclockwise direction at the front end of the).
  • This foreign matter (1) that does not respond to the air flow change showing a rotational aspect is separated from the air flow. Therefore, the foreign matter 1 remaining in the exhaust gas does not correspond to the change of the airflow direction induced by the second baffle B21 and is separated from the exhaust gas. Is discharged toward the second duct portion 20.
  • the second baffle B21 protrudes obliquely upward in the direction of the first duct part 10 to improve the direction change effect of the exhaust gas, and the rear end of the second baffle B21 As fixed below the purge gas outlet H, it may be a curved body having a fourth radius of curvature R4 so as to be convex downward when viewed from the side as shown in FIG. 2.
  • FIG. 3 is a perspective view illustrating an exhaust gas purifying apparatus 200 and its baffles B12 and B21 according to some embodiments of the inventive concept
  • FIG. 4 is a side view of FIG. 3.
  • the first baffle B12 according to some embodiments of the inventive concept is viewed from the front (the observer has the first duct section 10 of FIG. 1). 2, when viewed in the direction of the duct section 20, the first convex radius of curvature R1 and the convex third radius of curvature R3 are repeated in the form of waves, and viewed from the side as shown in FIG. It may have a shape with a second radius of curvature R2 to convex upwards. 3, the second baffle B12 has a shape in which a first radius of curvature R1, a third radius of curvature R3, and a first radius of curvature R1 are sequentially repeated in a wave form. As shown in FIG.
  • the second baffle B121 may have a first radius of curvature R1-a third radius of curvature R3-a first radius of curvature R1-a third radius of curvature ( It is also possible that the shape R3) -first curvature radius R1 is sequentially repeated in wave form.
  • the number of repetitions or the size of the radius of curvature may be optimally designed according to the type, flow rate, thermal and chemical characteristics, length, volume, size, size of the duct, etc. without departing from the technical spirit of the present invention. .
  • FIG. 5 is a perspective view illustrating an exhaust gas purification apparatus 300 and a baffle B13 and B21 thereof according to some embodiments of the inventive concept
  • FIG. 6 is a plan view illustrating the first baffle B13 of FIG. 5. .
  • the first baffle B13 has an airflow guide groove F1 that guides the airflow of the exhaust gas G1 at a tip end thereof. Can be formed.
  • the airflow guide groove F1 may induce airflow such that the flow rate of the airflow is rapidly increased to exit the airflow guide groove F1. Due to the air flow guide groove (F1), the exhaust gas (G1) is converted to the direction of the second duct portion 20 as the flow velocity is concentrated in the air flow guide groove (F1) exiting the air flow guide groove (F1) at a high flow rate This will be further promoted. Therefore, the foreign matter 1 which cannot follow the rapid change of the airflow can be removed to the lower hopper area.
  • the air flow guide groove F1 may be a semicircular shape.
  • the shape of the air flow guide groove (F1) may also be optimally designed according to the type, flow rate, thermal and chemical characteristics of the exhaust gas, length, volume, size, size, etc. without departing from the technical spirit of the present invention. .
  • FIG. 7 is a perspective view illustrating an exhaust gas purifying apparatus 400 and a baffle B14 (B21) thereof according to some embodiments of the inventive concept
  • FIG. 8 is a plan view illustrating the first baffle B14 of FIG. 7. .
  • the first baffle (B14) according to some embodiments of the present invention, the air flow guide groove (F2) and the leading edge (E) to reduce the sudden change of air flow ) May be rounded to a rounding radius of curvature CR.
  • the position and size of the rounding radius of curvature CR may be optimally designed according to the type, flow rate, thermal and chemical characteristics of the exhaust gas, length, volume, size, size, etc. without departing from the spirit of the present invention. Can be.
  • FIG. 9 is a perspective view illustrating an exhaust gas purifying apparatus 500 and a baffle B15 and B21 thereof according to some embodiments of the inventive concept
  • FIG. 10 is a plan view illustrating the first baffle B15 of FIG. 9. .
  • an air flow guide groove F3 may be formed at the tip of the downwardly convex portion P1 of the first baffle B15 to guide the air flow of the exhaust gas G1.
  • the airflow guide grooves F3 may be two, and in addition, FIG. 16. As shown in FIG. 3, when the first convex portion P1 of the first baffle B151 is three, the air flow guide groove F3 may also be three.
  • the number, location, and shape of the air flow guide groove (F3) is in accordance with the type, flow rate, thermal and chemical properties, duct length, volume, size, size, etc. of the exhaust gas within the scope not departing from the technical spirit of the present invention. Optimization can be designed.
  • FIG. 11 is a perspective view illustrating an exhaust gas purification apparatus 600 and a baffle B16 and B21 thereof according to some embodiments of the inventive concept
  • FIG. 12 is a plan view illustrating the first baffle B16 of FIG. 11. .
  • an air flow guide groove F4 may be formed at the tip of the convex portion P2 of the first baffle B16 to guide the air flow of the exhaust gas G1. .
  • the airflow guide groove F4 may be one, and in addition, in FIG. 17. As illustrated, when there are two convex portions P2 of the first baffle B161, the air flow guide grooves F4 may also be two.
  • the installation position and shape of the air flow guide groove (F4) is optimized design according to the type, flow rate, thermal and chemical characteristics of the exhaust gas, length, volume, size, size, etc. without departing from the technical spirit of the present invention Can be.
  • FIG. 13 is a perspective view illustrating an exhaust gas purifying apparatus 700 and a baffle B17 and B21 thereof according to some embodiments of the inventive concepts.
  • the first baffle B17 has a shape in which the tip thickness T1 becomes thinner toward the front end so as to maintain structural mechanical rigidity, and the rear end thickness T2 becomes thicker toward the rear end.
  • the size of the front end thickness T1 and the rear end thickness T2 depends on the type of the exhaust gas, the flow rate, the thermal and chemical properties, the length, the volume, the size of the duct, and the like, without departing from the technical spirit of the present invention. Optimization can be designed.
  • FIG. 14 is a perspective view illustrating an exhaust gas purifying apparatus 800 and a baffle B11 and B22 thereof according to some embodiments of the inventive concepts.
  • the second baffle B22 may be a curved body having a fifth radius of curvature R5 to be convex upward when viewed from the side.
  • the size of the fifth radius of curvature R5 may be optimized according to the type, flow rate, thermal and chemical characteristics of the exhaust gas, length, volume, size, size, etc. of the exhaust gas within a range not departing from the technical spirit of the present invention. Can be.
  • FIG. 18 is a perspective view illustrating an exhaust gas purifying apparatus 900 and a baffle B11 and B21 thereof according to some embodiments of the inventive concept
  • FIG. 19 is a side view of FIG. 18,
  • FIG. 20 is a transfer of FIG. 18. It is a figure which shows a simulation result.
  • the foreign matter receiving portion 30 is a funnel-shaped hopper concave down, and has a first direction between the first duct portion 10 and the foreign matter receiving portion 30.
  • An induction plane 50 may be formed at a predetermined angle with the surface thereof and form a plane.
  • the induction plane 50 is guided in a direction different from the first direction so that the air flow direction is rapidly changed, and in particular, a kind of inclined surface may be formed to more easily induce rapid vortices. Therefore, as shown in color in FIG. 20, the flow velocity in the foreign matter accommodating portion 30 is not significantly lowered, but a rapid vortex of rapid flow rate is caused by the induction plane 50 and the baffles B11 and B21. As it occurs, the foreign matter 1 may fall toward the foreign matter receiving portion 30 by centrifugal force.
  • the second baffle B21 has an opposite curvature except that the second baffle B21 has the same convex curvature as viewed from the side, and the rest have the same structure. It is the result of computer simulation in a gas purification apparatus. As shown in FIG. 20, while the rapid vortex of the high velocity is generated by the induction plane 50 and the baffles B11 and B21, the foreign matter 1 may fall toward the foreign matter receiving portion 30 by centrifugal force. have.
  • FIG. 22 is a perspective view illustrating an exhaust gas purifying apparatus 1000 and a baffle B18 and B23 thereof according to some embodiments of the inventive concept
  • FIG. 23 is a side view of FIG. 22
  • FIG. 24 is a transfer of FIG. 22. It is a figure which shows a simulation result.
  • the first baffle B18 and the second baffle B23 may have a predetermined angle with a first direction, and may have a flat plate shape with a flat surface.
  • the plate-shaped first baffle B18 and the second baffle B23 are guided in a direction different from the first direction so that the air flow direction is rapidly changed, and in particular, a kind of inclined surface may be formed to more easily induce sudden vortices. Can be. Therefore, as shown in color in FIG. 24, the flow rate in the foreign matter accommodating portion 30 is not significantly reduced, but a rapid vortex of rapid flow rate is generated by the baffles B18 and B23 while the foreign matter 1 The centrifugal force may fall in the foreign matter accommodating part 30 direction.
  • an induction curved portion 40 having a sixth radius of curvature R6 may be formed between the first duct portion 10 and the foreign substance accommodating portion 30. have.
  • the distance from the first curved baffle B11 to the guide curved portion 40 as compared to the case having the guide flat portion 50 as shown in FIG. 18. Is longer than the distance from the first baffle B11 to the induction plane portion 50. Therefore, the length of the first baffle B11 can be formed longer by the difference of the distance, and when the length of the first baffle B11 is longer, the effect of changing the direction of air flow by the first baffle B11 is enhanced. You can.
  • FIG. 25 is a perspective view illustrating an exhaust gas purification apparatus 1100 and a baffle B18 and B23 thereof according to some embodiments of the inventive concept
  • FIG. 26 is a side view of FIG. 25
  • FIG. 27 is a transfer of FIG. 25. It is a figure which shows a simulation result.
  • the foreign matter accommodating part 30 is a funnel-shaped hopper concave down so as to be convex upward between the first duct part 10 and the foreign matter accommodating part 30.
  • An induction curved portion 60 having a seventh radius of curvature R7 may be formed.
  • the guide curved portion 60 is guided in a direction different from the first direction so that the air flow direction is rapidly changed, and in particular, it is possible to more easily induce a sudden vortex by forming a kind of protruding surface. Therefore, as shown in color in FIG. 27, the flow velocity in the foreign matter accommodating portion 30 is not significantly reduced, but a rapid vortex of rapid flow rate is induced by the guide curved portion 60 and the baffles B18 and B23. As it occurs, the foreign matter 1 may fall toward the foreign matter receiving portion 30 by centrifugal force.
  • 28 to 30 are perspective views illustrating examples of second baffles B211, B221, and B231 according to some embodiments of the inventive concepts.
  • air flow guide grooves F5, F6, and F7 that guide the air flow of the exhaust gas G1 to the tips of the second baffles B211, B221, and B231. This can be formed.
  • the installation position and shape of the air flow guide groove (F5) (F6) (F7) is a type of discharge gas, flow rate, thermal and chemical characteristics, length, volume of the duct within the scope not departing from the technical spirit of the present invention.
  • the design can be optimized according to the size, size, and the like.
  • FIG. 31 shows a transfer simulation result in a structure in which a baffle is not formed as in the embodiments of the present invention as a comparative example. Referring to this, it can be seen that unlike the embodiments of the present invention, abrupt change of direction of the exhaust gas does not occur.
  • Table 1 shows the results of comparing the purification ability of the foreign matter in Figs. 20, 21, 24, and 27, which are the results of computer simulations of the examples of the present invention, and in Fig. 31, which are the results of the comparative example. At this time, the injected foreign matter was 5 mm in diameter.
  • the results of the transcription simulation reflecting the spirit of the present invention show that when the number of foreign substances having a diameter of 5 mm injected over all types is 500, most foreign substances, that is, 470 to 500 The foreign body of the dog has been cleaned, and only a small portion of the foreign body can be seen that discharged. In comparison, only about 54% of the comparative example was found to be purified. Therefore, the exhaust gas purifying apparatus according to the spirit of the present invention can achieve a very good purifying performance having a purifying power of 94 percent or more for foreign matters of 5 mm or more.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Separating Particles In Gases By Inertia (AREA)
PCT/KR2013/003945 2012-07-16 2013-05-07 Appareil de purification des gaz d'échappement et déflecteur associé Ceased WO2014014193A1 (fr)

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CN201380033275.9A CN104470616B (zh) 2012-07-16 2013-05-07 排出气体净化装置及其挡板

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KR1020120077415A KR101218403B1 (ko) 2012-07-16 2012-07-16 배출 가스 정화 장치 및 이의 배플
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EP3527910A1 (fr) * 2018-02-16 2019-08-21 Cockerill Maintenance & Ingenierie S.A. Système de piège de gouttelettes de sel fondu pour récepteur solaire
CN116604945A (zh) * 2023-04-07 2023-08-18 盐城工学院 一种pcb喷墨打印机墨水回收装置

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KR101652233B1 (ko) * 2014-08-29 2016-08-30 삼성중공업 주식회사 선박용 배전반
KR20160107072A (ko) 2015-03-03 2016-09-13 두산중공업 주식회사 보일러의 연소가스 가이드장치
KR101781096B1 (ko) * 2015-09-10 2017-10-10 메탈젠텍 주식회사 배출 가스 정화 장치
KR101711197B1 (ko) * 2015-10-23 2017-03-03 메탈젠텍 주식회사 배출 가스 정화 장치
KR102015928B1 (ko) * 2017-11-13 2019-08-29 두산중공업 주식회사 플라이 애쉬 포집 장치
CN110538517B (zh) * 2019-09-04 2021-08-20 鞍钢股份有限公司 一种干熄焦一次除尘装置及除尘方法

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CN104470616A (zh) 2015-03-25
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